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| Designations on gas stoves. Conventional graphic designations. Terms and Definitions |
| equipment. Working drawings |
GOST |
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Decree of the USSR State Committee for Construction Affairs of August 17, 1983 No. 203 established the deadline |
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from 01.01.84 |
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(0,05 kgf / cm 2) |
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c) Wed long ago more |
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5 kPa (0.05 kgf / cm 2) |
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up to 0.3 MPa (3 kgf / cm 2) |
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2. Gas cable purge |
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3. Pipeline in the section nie |
In the case when on a shelf call lines indicate letter nn o-digital designation of the gas pipeline, its diameter and wall thickness indicate below the shelf callouts.
1.5. The risers of gas pipelines are marked with a mark consisting of an alphabetic designation "St" and, through a hyphen, the serial number of the riser within the building (structure), for example St-1, St-2.
1.6. Conditional graphic depictions of fittings (stop, regulating and safety) and equipment are adopted according to state standards, taking into account additional images and given in.
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Name |
Picture |
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1. Gas meter |
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2. Two-burner household gas stove |
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3. Four-burner household gas stove |
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4. Gas heating appliance |
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5. Heating and cooking stove |
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6. Gas fireplace |
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7. Pressure regulator |
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8. Safety shut-off valve |
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9. Control knob |
2. GENERAL DATA ON WORKING DRAWINGS
2.1. The general data of the main set of working drawings of the FGP brand in addition to the data provided include:
Key indicators for working drawings of the GSV brand
_________
* The characteristics of the gas used are indicated in the note.
3. DRAWINGS OF THE LOCATION OF GAS PIPELINES
AND EQUIPMENT
3.1. Drawings for the location of gas pipelines and equipment are performed at -79, taking into account the requirements of this standard.
3.2. Plans, sections and views
3.2.1. Plans, sections and views are performed on a scale of 1: 100 or 1: 200, nodes and fragments of plans, sections and types - on a scale of 1:10 - 1: 100 on.
For small buildings or structures, when the implementation of fragments is impractical, plans, sections and views are allowed to be performed at the scale established for the fragments.
3.2.2. Gas pipelines located one above the other on the plans are conventionally depicted in parallel lines.
3.2.3. Gas pipelines, equipment and fittings on the plans, sections and views indicate conditional graphic images, and equipment on which there are no conditional graphic images - simplified graphic images.
Gas pipelines with a diameter of 100 mm or more on fragments and nodes are depicted in two lines.
3.2.4. On the plans, sections and types indicate: the coordination axis of the building (structure) and the distance between them (for residential buildings - the distance between the axes of the sections);
building structures and equipment to which gas-air is supplied and from which combustion products are removed. Building structures and equipment indicate solid thin lines;
marks of levels of a clean floor and the main platforms;
dimensional references of gas installations and equipment, inputs (conclusions) and risers of gas pipelines to coordination axes or elements of building structures;
dimensions of operational walkways;
level marks or altitude dimensions of the installation of devices (if necessary).
On the plans, in addition, indicate the names of the premises (types of premises for residential buildings) and the category of explosive, explosive-fire and fire hazard industries (in a rectangle of size 5 ´ 8 mm), and on sections and views - the marks of the levels of the axes of the gas pipelines and the top of the waste gas pipeline (candles).
It is allowed to name the premises and the category of productions for explosive, explosive-fire and fire hazard in the explication of premises in form 2 -80.
4. GAS SUPPLY DIAGRAMS
For residential and communal buildings, instead of a graphical image of the connected equipment, it is allowed to indicate its change.
Heck. one
Heck. 2
For example, c
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GAS SUPPLY NETWORKS. CONVENTIONS
Symbols of gas equipment. Explanations for accepted terminology. Color pipelines in the drawings. Diameters of supply pipelines and gas flow rates for different devices. Gas ducts. Specifications for liquefied gas. The device of the flues.
| 1. Crossing the gas network lines with open wiring 2. Concealed wiring 3. Changing the diameters of the gas network pipes 4. Air duct 5. Impulse piping 6. Grounding 7. Gas sleeve 8. Ceiling lamp with the number of horns 9. Wall mounted lamp stationary 10. Wall mounted Mobile lamp 11. Gas pipe 12. Gas duct 13. Gas stove with three rings 14. Gas stove with oven 15. Refrigerator 16. Gas heating stove 17. Instantaneous water heater 18. Capacitive water heater 19. Installing the device in the opening with by a density 20. Installation of the device in an aperture with a gap 21. Water bag, water tank 22. Wall-mounted gas heating device 23. Gas meter |
Explanation of accepted terminology:
gas appliances named devices that do not require connection to the flues;
gas firing points are devices that are connected to gas ducts;
the instructions “before the meter” and “behind the meter” correspond to the direction of gas flow in the network.
Gas consumption: for every 1 m3 of air volume in a heated room during the heating season (September - May) with long-term heating (in residential buildings) 18 - 25 m3 of gas, with periodic heating (in commercial premises) - 10 - 15 m3 of gas.
The color of the pipelines in the drawings: gas pipelines - yellow, cold water pipelines - light blue, hot water pipelines - red.
Diameters of supply pipelines and gas flow rates for different devices:
1. The scheme of the gas network in a semi-detached house
2. Diameters in the gas network leading to the meters at one apartment with a bathroom on the floor; with two apartments per floor.
3. The size of the niches for 1-3 gas meters. OKF - level of clean floor.
4. Niche for 1 electric and 1 gas meter.
5. Niche for 1 electric and 1 gas meter.
The following devices do not require connection to the flues:
1. All types of gas stoves and gas refrigerators.
2. Heaters with a capacity of up to 10 liters in rooms with a volume of at least ten times the gas flow.
3. Laundry boilers and washing machines with a gas flow rate of up to 2.5 m3 / h in rooms with a volume of at least ten times the gas flow rate.
4. Gas heaters installed at the outer walls with exhaust openings in the wall.
In all other cases (water heaters, tubs for boiling clothes and larger washing machines, heating stoves, etc.), gas appliances must be connected to the flues.
The supplier plant is required to install a fuse at the outlet, eliminating the possibility of condensation and return of exhaust gases. Thermally controlled automatic Dirmeyer system non-swivel valve (Fig. 2) protects the premises from cooling through the gas duct and from traction disturbance when the exhaust duct is mixed (for exhaust gases from gas and solid fuel appliances); in addition, such a valve reduces noise. The carbon dioxide content in the air of rooms designed for temporary residence of people (bathroom, kitchen, etc.) should not exceed 0.4%; in rooms for long stays (dormitories and bedrooms) about 0.15%.
Gas ducts
It is allowed to connect no more than three firing points to a standard flue of 135 x 135 mm section in brick walls: do not make flue ducts with a section of more than 200 x200 mm; firing points operating on solid fuels and gas, if possible, do not connect to one flue. Flues should be located in warm places to prevent condensation on cold walls. A windproof hood must be installed on the top of the flue. On flat roofs, the ducts should be at least 50 cm higher than the parapet (Figs. 3 and 4).
Gas consumption: for taking a shower lasting 5 minutes with a water heater with a capacity of 5 liters - 0.25 m3; for heating the room for 15 minutes - 0.25 m3.
Liquefied gas (non-toxic gases - propane, butane, etc.) is used for gas supply in remote areas.
Specifications for liquefied gas (TRF 1969):
Places of installation of cylinders: small cylinders can be installed in any room except the bedroom; large cylinders - outside the building in a lockable metal cabinet or in a room with a separate external entrance; 1 kg of liquefied gas (3 m3 of natural gas) gives about 5000 kcal.
Liquefied gas costs almost 1/3 more than gas from the city network.
The diameters of the pipes with liquefied gas are much smaller than the diameters of the gas pipes of the urban network due to increased pressure.
9. Diagram of a gas network connected to compressed gas cylinders
Based on:
1. STO GAZPROMREGIONGAZ 1.2-2009 "Graphic display of gas distribution facilities and related communications."
2. GOST 2.780-96 “Unified system for design documentation. Symbols are conditional graphic. Air conditioners, hydraulic and pneumatic tanks. ”
3. GOST 2.784-96 “Unified system for design documentation. Symbols are conditional graphic. Elements of pipelines. "
4. GOST 2.787-71 “Unified system for design documentation. Conditional graphic designations in schemes. Elements, instruments and devices of the gas system of chromatographs. "
5. GOST 21.609-83 “System of design documentation for construction. Gas supply. Internal devices Working drawings".
6. GOST 21.404-85 “System of design documentation for construction. Automation of technological processes. Symbols of conventional devices and automation equipment in circuits. "
7. GOST 21.206-93 “System of design documentation for construction. Symbols of pipelines. "
When a property, for example, an apartment building, is put into operation, it must be inventoried in order to legally record the available space. To this end, employees of the Bureau of Technical Inventory measure the premises. And then, on the basis of the data obtained, they make up a floor plan of the building.
However, to agree on the redevelopment, the floor plan of the building is not needed, it is enough to have a floor plan of the apartment or the non-residential premises that it is planned to remodel. Thus, we can say that a floor plan or just a BTI plan is a reference document type, where, taking into account the measurements taken, the real state of the apartment (non-residential premises) is presented.
On the BTI plan, the exact sizes of the rooms are given and the following elements are graphically marked:
- capital walls and partitions;
- balconies and loggias;
- door and window openings;
- plumbing fixtures and stoves;
- ventilation.
All these elements have symbols on the BTI floor plan.
Types of BTI Documents
The following types of documents issued by the Bureau of Technical Inventory are used to agree on replanning.
Floor plan and explication
You can find out more about what kind of documents are, how and where they can be ordered from a separate articles . Here we just note that these are the simplest BTI documents that provide a minimum of information about the object.
A floor plan is a diagram of an object, presented as a drawing with special designations. At the entrance to the apartment, its number is indicated on the drawing. In addition, the sheet has a stamp of the BTI department that issued the document. Also, the BTI floor plan contains information on the legal address of the building and the floor on which the room is located, as well as the date of its last examination.
An explication is attached to the floor plan, which lists and assigns all the premises of the facility - residential and auxiliary - with an indication of their area and ceiling height.
Explicated floor plan
Thus, a floor plan with an explication is two sheets of the same format, one of which reflects the floor plan in the form of a drawing, and the other a table with the characteristics of rooms and rooms.
Technical passport BTI
A technical passport is a document that is specifically designed to coordinate redevelopments.
Technical passport with a BTI plan
About him, we also have a separate. But speaking in general, this is a more detailed document, which, in addition to the floor plan and explication, contains information about the house where the room is located (series, material of walls and floors, number of storeys of the building, number of apartments, year of construction, etc.) , address plan, etc.
Floor plan with explication before redevelopment
This document is used to legitimize redevelopment already done if illegally made changes are indicated in red on the BTI documents. Read more about this.
In general, this document is similar to a floor plan with an explication, but it has a special mark “before redevelopment” or “before conversion”.
Floor plan with explication before redevelopment
Any room consists of structural elements that have their own name, purpose, size, shape and other characteristics. On the plans of the BTI, they are reflected in the form of graphical symbols, which are not always clear to the owners of the premises.
And since everyone who decides to redevelop their apartment and wants to do it legally needs to deal with one of these documents, it is important to be able to understand how and what is indicated on them. Therefore, we will further analyze the designations on the plans of the BTI.
Description of signs on BTI plans
Just note that the designation of the BTI does not depend on the type of document. That is, one or another element of the drawing is equally indicated in the data sheet and on the floor plan.
First of all, the owners are interested in such a question, how are the bearing walls marked on the BTI plan? Many believe that in the drawing capital walls are marked with thick black lines, and curtain walls are thin with thin lines. But this does not always happen.
Therefore, it is impossible to determine which walls are bearing and which are not bearing according to the BTI plan. In any case, the average person will not be able to do this on his own, unless he seeks help from a specialist.
If the room was executed inconsistent redevelopment , which became known in the BTI, after carrying out the necessary measurements by an employee of the Bureau of Technical Inventory, all changes made to the drawing will be marked with red lines.
Doorways are designated as follows: at the borders of the line to indicate the partition, two small marks are drawn perpendicularly in the form of parallel dashes. If there is a door leaf between them, another parallel line is drawn that extends beyond the boundary of the wall. This is exactly the designation of the door on the BTI plan.
Similarly, information about the presence and location of window openings is entered into the floor plan. The thickest lines in the drawing mark the front walls, on which the windows are marked with two parallel lines with perpendicular restrictions on both sides, showing their width.
The numbering and area of \u200b\u200bthe room are displayed as a fractional number, where the numerator is the room number, and the denominator is its area.
In addition, the location of plumbing and stoves in the “wet” areas of the apartment is applied to BTI plans. Most often, it is possible to guess which plumbing fixtures are indicated on the drawing by the contours of the geometric shapes that designate them. And you can also guess about the designation of the electric stove on the BTI plan.
For reference: furniture, refrigerator, air conditioning, washing machine and dishwasher, heated towel rail, oven, etc. BTI are not indicated in any way on the floor plan. Also, there is no designation in the BTI passport for the floor covering material in the premises.
The decoding of the designations on the BTI plan is easiest to give with specific examples.
If you need to find out the BTI symbols, and also need help in developing project documentation and agreeing on redevelopment in state bodies, our employees are always ready to help with this.
When drawing up construction drawings, alphanumeric gas line designations applied to them should be affixed in accordance with the data that are given in GOST 21.609–83.
This standard defines both the composition of the working drawings of gas supply systems for buildings and structures of all sectors of the national economy of the country and its industry, as well as the rules that must be strictly and strictly observed during the preparation of this technical documentation.
Gas supply working drawingsWorkers blueprints of systems gas supply must be complied with in full compliance with all requirements set forth in the above-mentioned state standard, as well as other standards related to construction documentation. In addition, they must fully comply with the standards that have been adopted and are in force today regarding the design of gas supply systems.
Working drawings of systems gas supply must include:
Total information;
Drawings, sections, types and layouts of the pipelines themselves, gas equipment, gas instrumentation (instrumentation);
Schemes of gas supply systems;
Sketch drawings and drawings of general types of atypical structures and devices for gas supply systems;
Drawings, sections, types, diagrams and plans of gas supply installations.
The main set of working drawings of the brand FGP should be supplemented by documents such as a statement of material requirements and equipment specifications. They must be carried out in accordance with the requirements. GOST 21.109–80.
On technical drawings, for the designation of gas pipelines, it is necessary to use graphic images that are provided GOST 21.106–78.
The diameter that the gas pipeline has and its wall thickness is indicated on the shelf of the extension line.
For those gas pipelines that are constructed from steel water and gas pipes, parameters such as wall thickness and the diameter of its nominal bore are indicated.
For gas pipelines that are made of steel electric-welded and other pipes, parameters such as wall thickness and outer diameter are indicated.
In such cases, when the designation of the gas pipeline consisting of letters and numbers is indicated on the shelf of the extension line, parameters such as its diameter and wall thickness are placed under it.
To designate the risers of gas pipelines, a stamp is used, which consists of the letter combination "St" and the serial number of the designed riser within the structure indicated by a hyphen, for example: St-2, St-4.
The gaseous state of the substanceThe gaseous state is one of the three states of aggregation. Its main characteristic is that the particles constituting the substance (atoms, molecules or ions) are in very weak connection with each other and are very mobile. They move almost constantly, often enough colliding with each other, moreover, this movement is disordered, chaotic, free. Particles often change their direction of movement.
A gas is often defined as a substance whose temperature is equal to or above a certain critical temperature, at which it does not compress and does not transform into a liquid state of aggregation. This is precisely the difference between a gas and a vapor consisting of the smallest particles of a liquid.
Steam is a state of matter in which it can go into either a liquid or solid state.
Just like liquids, gases resist deformation and have fluidity. However, they do not have a certain fixed volume, trying to fill in the whole one that is available to them. In addition, unlike liquids, gases do not form a free surface.
GOST 21.609-2014
INTERSTATE STANDARD
System of design documents for construction
RULES FOR THE PERFORMANCE OF WORKING DOCUMENTATION OF INTERNAL GAS SUPPLY SYSTEMS
System of design documents for construction
Rules for execution of working documents of internal gas systems
ACS 01.100.30
Date of introduction 2015-07-01
Foreword
Goals, basic principles and the basic procedure for carrying out work on interstate standardization are established by GOST 1.0-92 "Interstate standardization system. Main provisions" and GOST 1.2-2009 "Interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. Development, adoption, Application, Updates and Cancellations "
Standard Information
1 DEVELOPED by Open Joint-Stock Company "Center for Methodology of Standardization and Standardization in Construction" (OJSC "Central nervous system")
2 INTRODUCED by the Technical Committee for Standardization TC 465 "Construction"
3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (protocol N 46-2014 of December 5, 2014)
Voted for adoption:
Short name of the country according to MK (ISO 3166) 004-97 | Abbreviated name of the state construction management body |
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Ministry of Economy of the Republic of Armenia |
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Kyrgyzstan | Kyrgyzstandard |
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Rosstandart |
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Uzbekistan | Uzstandard |
4 By the order of the Federal Agency for Technical Regulation and Metrology of December 12, 2014 N 2030-st the interstate standard GOST 21.609-2014 was put into effect as the national standard of the Russian Federation from July 01, 2015
5 REPLACEMENT GOST 21.609-83
Information on amendments to this standard is published in the annual information index "National Standards", and the text of the amendments and amendments is published in the monthly information index "National Standards". In case of revision (replacement) or cancellation of this standard, the corresponding notification will be published in the monthly information index "National Standards". Relevant information, notice and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet
1 area of \u200b\u200buse
1 area of \u200b\u200buse
This standard establishes the composition and rules for the implementation of working documentation of internal gas supply systems for buildings and structures for various purposes.
2 Normative references
This standard uses normative references to the following interstate standards:
GOST 2.303-68 Unified system for design documentation. Lines
GOST 2.317-2011 Unified system for design documentation. Axonometric projections
GOST 21.101-97 * Design documentation system for construction. Basic requirements for design and working documentation
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* In the territory of the Russian Federation GOST R 21.1101-2013 is valid.
GOST 21.110-2013 Design documentation system for construction. Specification of equipment, products and materials
GOST 21.114-2013 Design documentation system for construction. Rules for the execution of outline drawings of general types of non-standard products
GOST 21.205-93 System of design documentation for construction. Symbols of elements of sanitary systems
GOST 21.206-2012 Design documentation system for construction. Pipeline Symbols
GOST 21.208-2013 Design documentation system for construction. Automation of technological processes. Symbols of conditional devices and automation equipment in circuits
GOST 21.501-2011 Design documentation system for construction. Rules for the implementation of working documentation of architectural and structural solutions
Note - When using this standard, it is advisable to check the validity of reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or on the annual information index "National Standards", which is published as of January 1 of this year, and on the issues of the monthly information index "National Standards" for the current year. If the reference standard is replaced (changed), then when using this standard should be guided by the replacement (modified) standard. If the reference standard is canceled without replacement, the provision in which the reference to it is given applies to the extent not affecting this reference.
3 Terms and definitions
The following terms are used in this Standard with the corresponding definitions:
3.1 gas supply system: The technological complex of the consumer’s gas network, located from the point of connection to the gas distribution network to gas-powered equipment and consisting of external and internal gas pipelines and technical devices on them.
3.2 gas pipeline: Part of the gas distribution system, consisting of a pipeline for transporting natural or liquefied petroleum gases, with the exception of structures and devices installed on it.
3.3 internal gas pipeline: A gas pipeline laid inside the building from the inlet gas pipeline to the installation site of gas-powered equipment.
3.4 gas-powered equipment (installation): Equipment where gas is used in the process as fuel.
4 General
4.1 The working documentation of the internal gas supply systems is carried out in accordance with the requirements of this standard, GOST 21.101 and other interrelated standards of the Design Documentation System for Construction (SPDS), as well as regulatory documents for the design of gas supply networks and systems.
4.2 The composition of the working documentation of internal gas supply systems (hereinafter - gas supply) includes:
- working drawings intended for construction and installation works (the main set of working drawings of the GSV brand);
- outline drawings of general types of non-standard products, performed in accordance with GOST 21.114;
- specification of equipment, products and materials;
- questionnaires and dimensional drawings (if necessary);
- local budget (if necessary).
4.3 The composition of the main set of working drawings of the GSV brand include:
- general data on the working drawings;
- location drawings (plans and sections, fragments of plans and sections, local views and nodes) of gas pipelines and gas-using equipment (hereinafter referred to as equipment);
- gas supply schemes (gas consumption);
- drawings (plans, sections, units and diagrams) of gas-using installations.
It is allowed to include rectangular isometric projections of gas supply systems obtained from an electronic model of a building (structure) in the main set of working drawings.
4.4 Gas pipelines and their elements in the drawings are indicated by conventional graphic symbols and (or) simplified images in accordance with GOST 21.206. Gas pipelines in the diagrams are indicated by conventional graphic symbols.
4.5 The alphanumeric designations of gas pipelines are taken in accordance with Table A.1 (Appendix A) and are indicated on the drawings and diagrams in accordance with GOST 21.206. An example of applying alphanumeric characters is shown in Figure 1.
Figure 1. An example of applying alphanumeric characters
Picture 1
4.6 Installations are assigned a designation consisting of the installation number within the system and the designation of the gas pipeline in accordance with 4.5.
Example - 1G1, 2G3
4.7 The risers of gas pipelines are designated with a mark consisting of the letter designation "St" and the serial number of the riser within the building (structure).
Example - St1, St2
4.8 When indicating the nominal diameter of the reinforcement in the drawings and diagrams, the symbol "" is given before the dimension number.
When indicating the nominal diameter (nominal bore) of gas pipelines and their elements in the drawings and diagrams, the "" or the legend "" in front of the dimension number is given in accordance with Figures 2 but, 2at. When indicating the outer diameter and wall thickness, the sign "" is applied in front of the dimension number (Fig. 2 b, 2g).
Figure 2. Conventions
Figure 2
4.9 Graphic designations of elements of gas supply systems (gas-using equipment and fittings) are adopted in accordance with GOST 21.205, taking into account additional conventional graphic designations given in Table B.1 (Appendix B).
4.10 Examples of constructing graphical symbols for system elements are given in Table B.2 (Appendix B) and GOST 21.205 (Appendix A).
Examples of constructing symbols and simplified graphic images of system elements in circuits performed in axonometric projections are given in GOST 21.205 (Appendix B).
4.11 Symbols of devices, automation equipment and communication lines are adopted in accordance with GOST 21.208.
4.12 Level marks of structural elements, equipment, gas pipelines, etc. indicate in accordance with GOST 21.101.
4.13 Designations of slopes in sections and diagrams are applied in accordance with GOST 21.101, while the numerical value of the slope is indicated as a decimal fraction accurate to the third decimal place.
Image name | Scale |
1 Plans and sections of the location of equipment and gas pipelines | |
2 Schemes of gas supply (gas consumption) | |
3 Plans and schemes of small buildings | |
4 Plans, sections and installation diagrams | |
5 Fragments of plans | |
6 Plan Nodes | |
7 Nodes of plans and sections of system installations | |
8 Nodes in Detailed Image | |
9 System diagram nodes | 1:10; 1:20; 1:50 |
10 Sketch drawings of general types of non-standard products | 1:5; 1:10; 1:20; 1:50 |
5 General data on working drawings
5.1 The structure of the general data on the working drawings of the GSV brand, in addition to the information provided for in accordance with GOST 21.101, includes the main indicators of the gas supply system in form 1 (except for residential buildings).
Form 1 - Key indicators of the gas supply system (gas consumption)
Note:
1 The characteristics of the gas used are indicated in the column "Note".
2 The dimensions of the graph of form 1 at the discretion of the developer, if necessary, may be changed.
3 Lines delimiting horizontal lines may not be drawn.
5.2 The sheet of specifications provided by GOST 21.101, as part of the general data on the working drawings of the GSV brand, is not fulfilled.
5.3 In general guidelines, in addition to the information provided for in GOST 21.101, give:
- links to regulatory documents, according to which the calculation of gas supply systems;
- characteristics of system installations;
- requirements for the manufacture, installation, testing, painting and insulation of gas pipelines, as well as the conditions for their laying;
- special requirements for gas supply, such as explosion safety and fire safety.
The general guidelines should not repeat the technical requirements placed on other sheets of the main set of working drawings of the GSV brand, and give a description of the technical solutions adopted in the working drawings.
6 System Drawings
6.1 Drawings of the location of equipment and gas pipelines
6.1.1 Drawings of the location of equipment and gas pipelines in buildings and structures are performed according to GOST 21.101
6.1.2 Images in the drawings (plans and sections, fragments of plans and sections, local views and nodes) are performed on a scale of 4.15.
6.1.3 On the plans, their fragments and nodes (external elements), equipment, installations, gas pipelines and other elements of the systems are depicted with a thick main line in accordance with GOST 2.303, building structures and technological equipment - with a solid thin line.
6.1.4 Equipment and installations, for which there are no conventional graphic symbols, are indicated on the plans in the form of simplified graphic images, and gas pipelines and other elements of the systems - conventional graphic symbols.
6.1.5 On fragments of plans and nodes, gas pipelines, fittings and other devices are depicted in simplified or conventional graphic designations, depending on the scale of the drawing and the diameter of the pipeline. Gas pipelines are depicted simplistically in two lines, if in the drawing their diameters in an appropriate scale are 2 mm or more, while valves and other devices are also depicted simplistically taking into account their overall dimensions.
Gas pipelines, made by conventional graphic symbols in one line and located one above the other in the same plane, are conventionally depicted on the plans as parallel lines.
6.1.6 On the plans and sections put and indicate:
- coordination axes of the building (structure) and the distance between them (for residential buildings - the distance between the axes of the sections);
- building structures and equipment to which gas and air are supplied and from which the products of combustion are removed, as well as affecting the laying of gas pipelines;
- marks of the levels of clean floors of floors and main sites;
- dimensional bindings of gas-using installations and equipment, supports (fixtures), bushings (outlets) and risers of gas pipelines to coordination axes or structural elements;
- dimensions of operational walkways;
- alphanumeric designations and diameters of gas pipelines;
- positional designations (brands) of equipment, installations, supports (fixtures) and risers of gas pipelines on the shelves of extension lines;
- level marks or elevation dimensions of the instrument installation (if necessary).
The plans, in addition, indicate the names of the rooms in which the gas-using equipment is installed, and in the rectangle indicate the categories of premises for explosion and fire hazard (except residential buildings). It is allowed to name the premises and the category of premises for explosion and fire hazard in the explication of premises in accordance with Form 2 of GOST 21.501.
The sections indicate the level marks of the axes of the gas pipelines and the top of the waste gas pipeline (candles).
The plans and sections of the location of household equipment (for example, gas stoves, water heaters) and gas pipelines in residential buildings, public utilities and public buildings provide data on the volume and height of the room in which this equipment is installed, as well as indicate the location of the chimneys (their cross section ) and the location of the ventilation grilles.
6.1.7 Examples of the implementation of the layout plan of the equipment and gas pipelines of the boiler room are shown in Figure B.1 (Appendix B), section - in Figure B.2 (Appendix B).
An example of the implementation plan for the location of household equipment and gas pipelines in a residential building is shown in Figure B.3 (Appendix B).
6.2 Schemes of gas supply systems
6.2.1 System diagrams are performed in axonometric oblique frontal isometric projection or in rectangular isometric projection in accordance with GOST 2.317 without distortion along the axes,,.
6.2.2 Gas pipelines and fittings in the diagrams are indicated with graphic symbols, and equipment for which there is no graphic symbol is indicated with a simplified graphic image.
For residential and communal buildings, instead of a graphic image of the connected equipment, it is allowed to indicate its name.
6.2.3 Designed gas pipelines, fittings and other devices in the diagrams are depicted as a solid thick main line. Equipment, as well as existing pipelines, fittings and other devices, are depicted as a solid thin line.
6.2.4 With a large length and (or) complex arrangement of gas pipelines, it is allowed to depict them with a gap in the form of a dashed line. The places of gas pipeline breaks are indicated by lowercase letters (Figure 3).
Figure 3. Locations of gas pipeline breaks are indicated by lowercase letters
Figure 3
6.2.6 * On the diagrams, apply and indicate:
_______________
- risers of gas pipelines and their designations;
- gas pipeline inlets with diameters and elevations of the axes of the pipelines at the points of intersection with the axes of the outer walls of the building (structure);
- gas pipelines and their diameters;
- shut-off and control valves;
- equipment, instrumentation and other elements of systems. In this case, the letter designations of the measured quantities and functional signs of the devices are adopted in accordance with GOST 21.208;
- embedded structures (selective devices for installing instrumentation) indicating the designation of the design and the document. Mortgage constructions on pipelines and other elements of systems indicate points with a diameter of 2 mm;
- marks of axle levels of gas pipelines;
- slopes of gas pipelines (for wet and liquefied petroleum gas);
- sizes of horizontal sections of gas pipelines in the presence of gaps.
6.2.8 * On the sheet where the diagram is shown, give, if necessary, nodes (external elements) of the diagram and textual explanations.
_______________
* Numbering is according to the original. - Note by the manufacturer of the database.
On the circuit nodes for shut-off and control valves on the shelf of the leader line indicate the diameter of the valve and under the shelf - the designation of the valve (according to the catalog).
It is allowed to give in a similar way the diameters and designations of shut-off and control valves on the system diagrams.
6.2.9 In the title block and above the diagram, the name of the diagram is indicated in full: "Gas supply scheme".
6.2.10 An example of a boiler gas supply scheme is shown in Figure D.1 (Appendix D), a gas supply scheme for a residential building is shown in Figure D.2 (Appendix D).
7 Drawings of gas installations
7.1 Drawings (plans, sections and diagrams) of gas-using installations should be carried out if there are two or more component parts (installation elements) in the installation, it is necessary to show how to fix the installation components together or to supporting structures, and there are no typical installation drawings or installation drawings of the enterprise- manufacturer. In other cases, installation drawings are not performed.
7.2 On the plans and sections of the installations, the elements of the installations are simplified. If it is necessary to show the methods of fastening the components of the installation or their connection with each other, the corresponding elements are shown in detail, as a rule, on the nodes of the plans and sections of the installations.
7.3 The rules for depicting equipment, pipelines, fittings and other devices on plans, sections and units of installations are adopted in accordance with 6.1.2-6.1.5, and in installation diagrams, in accordance with 6.2.1-6.2.3.
7.3 * The rules for depicting equipment, pipelines, valves and other devices on plans, sections and units of installations are adopted in accordance with 6.1.2-6.1.5, and in plant diagrams, in accordance with 6.2.1-6.2.3.
_______________
* Numbering is according to the original. - Note by the manufacturer of the database.
7.4. The designation elements are assigned reference numbers consisting of the installation designation in 4.6 and the element serial number within the installation.
Example - 1G1.1, 1G1.2, 2G3.1, 2G3.2
7.5 On the plans and sections of the plants, they are applied and indicated:
- coordination axis of the building (structure) and the distance between them;
- marks of clean floors of floors (sites);
- dimensional references of installations to coordination axes or to structural elements of a building (structure);
- main dimensions and level marks of plant elements;
- alphanumeric designations of gas pipelines (see 4.5);
- diameters of gas pipelines;
- positional designations of equipment, fittings, embedded structures and other devices.
On the plans and sections of the installation, in addition to the installation elements, building structures are indicated.
7.6. The installation scheme is carried out without observing the scale; the actual spatial arrangement of equipment and gas pipelines is taken into account approximately.
On the diagram put and indicate:
- equipment, gas pipelines, fittings and other devices;
- instrumentation (if necessary);
- alphanumeric designations of gas pipelines, as a rule, in line breaks in gas pipelines;
- diameters of gas pipelines;
- positional designations of equipment, fittings, embedded structures and other devices;
- flow direction of the transported medium.
7.7. On the drawings of the installations, if necessary, the technical requirements for the installation of installations are given.
7.8. To the drawings of the installations make up the specification according to form 7 of GOST 21.101, which, as a rule, is placed on the sheet where the installation plans are depicted. It is allowed to fulfill the specification on separate sheets as subsequent sheets of drawings.
7.9. The specification for plant drawings includes equipment, plant designs, fittings, embedded structures and other devices, as well as gas pipelines for each diameter.
The specification does not include elements of gas pipelines, the nomenclature and quantity of which are determined by the current technological and production standards (bends, transitions, tees, crosses, flanges, gaskets, bolts, nuts, washers).
7.10 In the column "Pos." indicate the reference designations of the plant elements in accordance with 7.4 sequentially for each installation. For gas pipelines, the column is not filled.
In the column "Name" for each installation record an alphanumeric designation of 4.6 in the form of a heading and underline.
7.11. In the specification, the elements of the installation are recorded in groups in the following sequence:
- equipment;
- fittings;
- other elements of installations;
- embedded structures;
- gas pipelines for each diameter.
7.12 In the main inscription, the name and alphanumeric designations of the installations (see 4.6) are indicated in full.
Example - Installations 1G1, 2G3
7.13 Examples of the implementation of the plan and section of the installation are shown in Figures D.1-D.3 (Appendix D).
An example of the installation scheme is shown in Figure E.1 (Appendix E).
8 Specification of equipment, products and materials
8.1 The specification of equipment, products and materials (hereinafter referred to as the specification) is fulfilled and designated in accordance with GOST 21.110, taking into account the requirements of this standard.
8.2 If the industrial building (structure) provides for attached or built-in parts in which auxiliary premises are located, then the specification is made in parts:
- production part;
- auxiliary part.
If the residential building provides for attached or built-in parts to accommodate enterprises and public facilities, then the specification is also made up in parts:
- residential part;
- auxiliary part.
The name of each part is recorded as a heading in the column "Name and technical specification" and underline.
8.3 Elements of systems (equipment, products) and materials in the specification or its parts are recorded in groups in the following sequence:
- equipment;
- pipeline accessories;
- other elements of systems (including supports and fastenings of gas pipelines);
- embedded structures (selected devices for installing instrumentation);
- gas pipelines;
- materials.
Within each group, the elements of the systems are recorded in increasing order of their main parameters (for example: type, brand, diameter, section).
The pipelines in the sections of the specification are recorded for each diameter.
Plant elements included in the specifications for plant drawings are also recorded in the relevant specification groups.
Elements of gas pipelines, the nomenclature and quantity of which are determined by the current technological and production standards, are not included in the specification. Elbows, transitions, flanges, gaskets, bolts, nuts, washers, etc. can be referred to such elements.
8.4 The following units are accepted in the Specification:
- equipment (installations), supports (fastenings) of gas pipelines, embedded structures (selected devices for installing instrumentation) and other elements - pcs .;
- gas pipelines - m;
- insulation materials - m;
- coating and protection materials - m;
- other materials - kg.
9 Questionnaires and dimensional drawings
9.1 Questionnaires and dimensional drawings are performed in accordance with the data of equipment suppliers and are completed in the form of a separate issue with the name "Questionnaires".
The issue "Questionnaires" is assigned an independent designation consisting of the designation of the main set of working drawings of the GSV brand and through the cipher point "OL". The designation is indicated on the title page of the issue of questionnaires.
Example - 2345-11-GSV.OL
9.2 If there are two or more questionnaires (dimensional drawings), then after the title page of the issue of questionnaires the content shall be placed, which shall be performed in accordance with GOST 21.101. The content is assigned a designation consisting of a designation for the issue of questionnaires and through a hyphen of the cipher "C".
Example - 2345-11-GSV.OL-S
9.3 The name of the questionnaire (dimensional drawing) shall indicate its designation or serial number within the issue.
9.4 Changes to the questionnaires (dimensional drawings) are made in accordance with GOST 21.101, taking into account the additional requirements of this standard.
Changes to the questionnaires (dimensional drawings) are made independently within each questionnaire (dimensional drawing).
Information on changes made to the questionnaires (dimensional drawings) is given in the column "Note" of the content of the issue of questionnaires.
9.5. Issue of questionnaires is recorded in the section “Attached documents” of the sheet of reference and attached documents included in the general data on the working drawings of the main set of FGP brand.
Appendix A (mandatory). Alphanumeric designations for gas pipelines
Appendix A
(required)
Table A.1
Name | Alphanumeric designation |
1 Gas pipeline: | |
a) general designation | |
b) low pressure up to 0.005 MPa | |
c) medium pressure 0.005 to 0.3 MPa incl. | |
d) high pressure St. 0.3 to 0.6 MPa incl. | |
d) high pressure St. 0.6 to 1.2 MPa incl. | |
2 Purge gas pipeline | |
3 Pipeline for vacuum | |
4 Gas pipeline (pipeline) security | |
Note - If necessary, the alphanumeric designation of gas pipelines may use the Latin letter "G". |
|
Appendix B (recommended). Symbols for gas-powered equipment and fittings
Table B.1 - Symbols for gas-powered equipment and fittings
Name | Designation |
|
1 Two-burner household gas stove | ||
2 Four-burner domestic gas stove | ||
3 Gas household heating apparatus | ||
4 Heating and cooking stove | ||
5 Gas fireplace | ||
6 Gas air heater | ||
7 Gas meter | ||
8 Thermal stop valve | ||
9 Sensor (signaling device) of gas contamination | Name | Designation |
Pressure regulator | ||
Solenoid valve | ||
Appendix B (informative). Examples of drawings for the location of equipment and gas pipelines
Appendix B
(informative)
Figure B.1 - An example of the implementation of the layout plan of the equipment and gas pipelines of the boiler room
Section 1-1
Figure B.2 - An example of a cut for a boiler room
Figure B.3 - An example of the implementation of the layout plan for household equipment and gas pipelines in a residential building
Appendix D (informative). Examples of gas supply schemes
Appendix D
(informative)
Figure D.1 - Boiler house gas supply scheme
Figure D.2 - Gas supply scheme of a residential building
Appendix D (informative). Examples of the implementation of the plan and section gas control unit (GRU)
Appendix D
(informative)
Figure E.1 - An example of the implementation of the plan
Figure E.2 - An example of a cut
Figure E.3 - An example of a node
Appendix E (informative). Installation example
Appendix E
(informative)
Figure E.1 - An example of the installation scheme
UDC 691: 002: 006.354 OKS 01.100.30
Keywords: design documentation system for construction, implementation rules, working documentation, internal gas supply systems (gas consumption)
__________________________________________________________________________
Electronic text of the document
prepared by Codex JSC and verified against:
official publication
M .: Standartinform, 2015
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