FEDERAL AGENCY FOR TECHNICAL REGULATION AND METROLOGY
GOST R 532882009
NATIONAL
STANDARD
RUSSIAN
FEDERATION
Water and foam fire extinguishing installations
automatic
General technical requirements.
Test Methods
Official edition
Standartinform
Foreword
The goals and principles of standardization in the Russian Federation are established by the Federal Law of December 27, 2002 No. 184-FZ "On Technical Regulation", and the rules for the application of national standards of the Russian Federation - GOST R 1.0-2004 "Standardization in the Russian Federation. Basic Provisions»
About the standard
1 DEVELOPED FGU VNIIPO EMERCOM of Russia
2 INTRODUCED by the Technical Committee for Standardization TK 274 "Fire Safety"
3 APPROVED AND INTRODUCED BY Order of the Federal Agency for Technical Regulation and Metrology dated February 18, 2009 No. 63-st
4 INTRODUCED FOR THE FIRST TIME
Information about changes to this standard is published in the annually published information index "National Standards", and the text of changes and amendments - in the monthly published information indexes "National Standards". In case of revision (replacement) or cancellation of this standard, a corresponding notice will be published in the monthly published information index "National Standards". Relevant information, notification 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
© Standartinform, 2009
This standard cannot be fully or partially reproduced, replicated and distributed as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology
1 Scope ...............................1
3 Terms and definitions...............................2
4 Classification....................3
5 General technical requirements....................3
6 Safety and environmental requirements...............................................5
7 Marking...................5
8 Acceptance Rules....................6
9 Test Methods..............................7
10 Packing...................12
11 Contents ...............................12
12 Transport and storage..............................13
Bibliography...................14
NATIONAL STANDARD OF THE RUSSIAN FEDERATION
Automatic water and foam fire extinguishing installations
MODULAR WATER MIST FIRE EXTINGUISHING UNITS, AUTOMATIC
General technical requirements.
Test Methods
Automatic water and foam extinguishers systems. Automatic fire water mist spray extinguishers systems. modules. general technical requirements. Test methods
Date of introduction - 2010-01-01 with the right of early application
1 area of use
This standard applies to modular water mist fire extinguishing installations (MUPTV) or other liquid fire extinguishing agents (OTV) designed to extinguish fires and used on the territory of the Russian Federation.
This standard does not apply to MUPTV designed to protect vehicles, as well as structures designed according to special standards.
This International Standard specifies types, general specifications and test methods for MUPTV.
This standard uses normative references to the following standards:
GOST R 51043-2002 Automatic water and foam fire extinguishing installations. Sprinklers. General technical requirements. Test Methods
GOST R 51105-97 Fuels for internal combustion engines. Unleaded gasoline. Specifications
GOST 9.014-78 Unified system of protection against corrosion and aging. Temporary anticorrosive protection of products. General requirements
GOST 9.032-74 Unified system of protection against corrosion and aging. Paint coatings. Groups, technical requirements and designations
GOST 9.104-79 Unified system of protection against corrosion and aging. Paint coatings. Operating condition groups
GOST 9.301-86 Unified system of protection against corrosion and aging. Metallic and non-metallic inorganic coatings. General requirements
GOST 9.302-88 Unified system of protection against corrosion and aging. Metallic and non-metallic inorganic coatings. Control methods
GOST 9.303-84 Unified system of protection against corrosion and aging. Metallic and non-metallic inorganic coatings. General selection requirements
GOST 9.308-85 Unified system of protection against corrosion and aging. Metallic and non-metallic inorganic coatings. Accelerated Corrosion Test Methods
GOST 9.311-87 Unified system of protection against corrosion and aging. Metallic and non-metallic inorganic coatings. Method for assessing corrosion damage
GOST 12.0.004-90 Occupational safety standards system. Organization of labor safety training. General provisions
Official edition
GOST 12.2.037-78 Occupational safety standards system. Fire fighting equipment. Safety requirements
GOST 12.2.047-86 Occupational safety standards system. Fire engineering. Terms and Definitions
GOST 12.4.026-76 Occupational safety standards system. Signal colors and safety signs GOST 15.201-2000 System for the development and production of products. Products for industrial and technical purposes. The procedure for the development and production of products for production GOST 356-80 Fittings and details of pipelines. Pressure conditional, trial and working. Series GOST 2405-88 Pressure gauges, vacuum gauges, pressure and vacuum gauges, pressure gauges, draft gauges and thrust gauges. General specifications
GOST 5632-72 High-alloy steels and corrosion-resistant, heat-resistant and heat-resistant alloys. Stamps
GOST 8486-86. Softwood lumber. Specifications GOST 8510-86 Hot-rolled steel angle bars, unequal. Assortment GOST 9569-79 Waxed paper. Specifications GOST 14192-96 Cargo marking
GOST 15150-69 Machinery, instruments and other technical products. Versions for different climatic regions. Categories, conditions of operation, storage and transportation in terms of the impact of environmental climatic factors
GOST 18321-73 Statistical quality control. Methods for random selection of samples of piece products
GOST 19433-88 Dangerous goods. Classification and labeling
GOST 21130-75 Electrical products. Grounding clamps and grounding signs. Design and dimensions
GOST 23852-79 Paint coatings. General requirements for the selection of decorative properties GOST 25828-83 Normal reference heptane. Specifications
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 according to the annually published information index "National Standards", which was published as of January 1 of the current year , and according to the corresponding monthly published information signs published in the current year. If the reference standard is replaced (modified), then when using this standard, you should be guided by the replaced (modified) standard. If the referenced standard is canceled without replacement, the provision in which the reference to it is given applies to the extent that this reference is not affected.
3 Terms and definitions
This standard uses the terms according to GOST 12.2.047, as well as the following terms with the corresponding definitions:
3.1 water feeder MUPTV: A device that ensures the operation of the installation with the estimated flow rate and pressure of water and / or aqueous solution specified in the technical documentation (TD) for the specified time.
3.2 locking and starting device, ZPU: A locking device installed on a vessel (cylinder) and ensuring the release of a fire extinguishing agent from it.
3.3 inertia MUPTV: The time from the moment the controllable fire factor reaches the threshold of operation of the sensitive element of the fire detector, sprinkler sprinkler or stimulating device until the start of the supply of fire extinguishing agent to the protected area.
3.4 fast-response MUPTV: Installation with inertia no more than 3 s.
3.5 module: A device, in the body of which the functions of storing and supplying OTS are combined when a starting pulse is applied to the module drive.
3.6 modular water mist fire extinguishing installation, MUPTV: Installation consisting of one or more modules, united by a single fire detection and actuation system, capable of independently performing the fire extinguishing function and located in or near the protected room.
3.7 MUPTV short-term action: Installation with a time of supply of OTV from 1 to 60 s.
3.8 MUPTV continuous action: Installation with a continuous supply of OTV during the time of action specified in the TD.
3.9 MCTV of cyclic action: An installation that supplies OTV in a multiple feed-pause cycle.
3.10 sprinkler: A device designed to extinguish, localize or block a fire by spraying water and / or aqueous solutions.
3.11 fire extinguishing capacity: The ability of the MUPTV to extinguish model fires of certain classes and ranks.
3.12 duration of action: The time from the moment the TEV starts to exit the sprinkler until the end of the supply.
3.13 working pressure Р„ ab: The pressure of the displacing gas in the vessel with the FTV, which occurs during the normal course of the working process.
3.14 consumption of fire extinguishing agent: The volume of water supplied by the MUPTV per unit of time.
3.15 medium inertia MUPTV: Installation with inertia from 3 to 180 s.
3.16 finely atomized flow of fire extinguishing agent: A droplet flow of fire extinguishing agent with an arithmetic mean droplet diameter of not more than 150 microns.
3.17 water combined fire extinguishing installation: Installation in which water or water with additives is used as a fire extinguishing agent in combination with various fire extinguishing gas compositions.
3.18 installation of surface fire extinguishing with water mist: Installation that provides extinguishing of the burning surface of the protected room (structure).
4 Classification
The general classification of water mist fire extinguishing installations is given in Table 1.
Table 1 - General classification of water mist fire extinguishing installations
The MUPTV designation should have the following structure:
MUPTV - XXX - X - XX - TD,
(1) (2) (3) (4) (5)
where 1 - product name,
2 - the volume of the fire extinguishing agent refilled in the MUPTV, dm 3,
3 - type MUPTV for water feeder (compressed gas (liquefied gas) - G, gas generator - GZ, combined - K),
4 - type of fire extinguishing agent (water - V, water with additives - VD, liquid fire extinguishing agents - G, gas-water mixture - GV, gas-liquid mixture - GZh),
5 - designation of technical documentation, in accordance with which the installation is made, or the manufacturer.
Symbol example:
MUPTV - 250 - G - GV - TU ... - modular fire extinguishing installation with water mist with a volume of OTV 250 dm 3 , type according to the water feeder - compressed gas (liquefied gas), OTV - gas-water mixture, made in accordance with TU.
5 General technical requirements
5.1 MUPTV must comply with the requirements of GOST 12.2.037, this standard and the TD approved in the prescribed manner.
5.2 MUPTV of the injection type should have a manometer or pressure indicator with an operating range selected taking into account the temperature-pressure ratio. Zero value, nominal value (or
I give a detailed description:
Design of water and foam automatic fire extinguishing installations / L. M. Meshman, S. G. Tsarichenko, V. A. Bylinkin, V. V. Alyoshin, R. Yu. Gubin; Under total ed. N. P. Kopylova. - M.: VNIIPO EMERCOM of the Russian Federation, 2002. - 413 p.
The authors-compilers set themselves the task of concentrating in a small manual the maximum of the main provisions of a large number of regulatory documents related to the design of fire automatics.
Design norms for water and foam AFS are given. The features of the design of modular and robotic fire extinguishing installations, as well as AFS in relation to high-rise mechanized warehouses, are considered.
Particular attention is paid to a detailed presentation of the rules for the development of technical specifications for design, the main provisions for the coordination and approval of this assignment are formulated. The content and procedure for drawing up a working draft, including an explanatory note, are spelled out in detail.
The main volume of the training manual and its appendices contain the necessary reference material, in particular, terms and definitions, symbols, recommended regulatory and technical documentation and technical literature in relation to various types of water and foam AFS, a list of manufacturers of water-foam AFS, examples of designing water and foam AUP, including performing calculations and drawing up drawings.
The main provisions of the current domestic regulatory and technical documentation in the field of water-foam AUP are described in detail.
An algorithm for the hydraulic calculation of hydraulic networks of AFS, irrigation intensity, specific flow rate, flow rate and pressure of a section of a distribution pipeline for water and foam AFS is described. An algorithm for calculating the specific flow rate of water curtains created by general-purpose sprinklers is presented.
The teaching aid complies with the main provisions of the current NTD in the field of AFS and may be useful for training employees of organizations that design automatic fire extinguishing installations. The manual may be of interest to managers of enterprises and engineering staff specializing in the field of automatic fire protection of facilities.
The authors-compilers are grateful to CJSC "Kosmi" and CJSC "Engineering Center - Spetsavtomatika" for the presented design materials, which are used in appendices 10-12 of this manual.
Summary:
Section I Norms and rules for the design of water and foam AUP
Section II. The procedure for developing a task for the design of AUP
Section III. The procedure for the development of the AUP project
Section IV. Hydraulic calculation of water and foam fire extinguishing installations
Section V Coordination and general principles for the examination of AUP projects
Section VI. Regulatory documents, the requirements of which are to be taken into account when developing a project for water and foam fire extinguishing installations
Attachment 1. Terms and definitions in relation to water and foam AFS
Appendix 2 Symbols and graphic designations of AUP and their elements
Appendix 3 Determination of specific fire load
Appendix 4 List of products subject to mandatory certification in the field of fire safety (fire safety equipment)
Appendix 5 Manufacturers of water and foam AUP
Appendix 6 Technical means of water and foam AUP
Appendix 7 Reference book of basic prices for design work on fire protection of objects
Appendix 8 List of buildings, structures, premises and equipment to be protected by automatic fire extinguishing installations
Appendix 9 An example of the calculation of the sprinkler (drencher) distribution network of water and foam AUP
Annex 10. An example of a working draft of a water AUP
Annex 11. An example of terms of reference for the development of a working draft of a water AUP
Annex 12. An example of a working draft of a water automatic fire control system for a railroad warehouse
Feel free to leave your comment on the book
- file format: pdf
- size: 10.32 MB
- added: April 1, 2015
Publisher: VNIIPO EMERCOM of the Russian Federation
Year of publication: 2002
Pages: 431
The authors-compilers set themselves the task of concentrating in a small manual the maximum of the main provisions of a large number of regulatory documents related to the design of fire automatics.
Design norms for water and foam AFS are given.
The features of the design of modular and robotic fire extinguishing installations, as well as AFS in relation to high-rise mechanized warehouses, are considered.
Particular attention is paid to a detailed presentation of the rules for the development of technical specifications for design, the main provisions for the coordination and approval of this assignment are formulated.
The content and procedure for drawing up a working draft, including an explanatory note, are spelled out in detail.
The main volume of the training manual and its appendices contain the necessary reference material, in particular, terms and definitions, symbols, recommended regulatory and technical documentation and technical literature in relation to various types of water and foam AULs, a list of manufacturers of water-foam AUPs, examples of designing water and foam AUP, including performing calculations and drawing up drawings.
The main provisions of the current domestic regulatory and technical documentation in the field of water-foam AUP are described in detail.
The algorithm of hydraulic calculation of hydraulic networks of AUP, intensity is described; irrigation, specific flow rate, flow rate and pressure of the distribution pipeline section of water and foam AUP. An algorithm for calculating the specific flow rate of water curtains created by general-purpose sprinklers is presented.
The teaching aid complies with the main provisions of the current NTD in the field of AFS and may be useful for training employees of organizations that design automatic fire extinguishing installations. The manual may be of interest to managers of enterprises and engineering staff specializing in the field of automatic fire protection of facilities.
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1. TRADITIONAL WATER AND FOAM FIRE EXTINGUISHING INSTALLATIONS
2. DESIGN FEATURES OF STATIONARY HIGH-RISE RACK WAREHOUSES
3. FEATURES OF DESIGNING FIRE EXTINGUISHING INSTALLATIONS WITH SPRAY WATER
4. FEATURES OF DESIGNING ROBOTIC FIRE EXTINGUISHING INSTALLATIONS AND FIRE EXTINGUISHING INSTALLATIONS WITH STATIONARY REMOTE CONTROL MONITORS
5. PUMP STATIONS
6. REQUIREMENTS FOR PLACEMENT AND MAINTENANCE OF ACCESSORIES EQUIPMENT
7. REQUIREMENTS FOR WATER SUPPLY AND PREPARATION OF FOAM SOLUTION
8. REQUIREMENTS FOR AUTOMATIC AND AUXILIARY WATER SUPPLY
9. REQUIREMENTS FOR PIPING
10. POWER SUPPLY OF THE INSTALLATIONS
11. ELECTRIC CONTROL AND ALARMS
SECTION 2
1. STUDYING THE FEATURES OF THE PROTECTED OBJECT
2. GENERAL PROVISIONS ON THE PROCEDURE FOR THE DEVELOPMENT, APPROVAL AND APPROVAL OF THE DESIGN ASSIGNMENT
3. BASIC REQUIREMENTS FOR AUP
4. ORDER OF PRESENTATION OF THE DESIGN ASSIGNMENT
5. PROCEDURE FOR DESIGN ASSIGNMENT
6. LIST OF DOCUMENTATION SUBMITTED BY THE DEVELOPER ORGANIZATION TO THE CUSTOMER ORGANIZATION
SECTION III. ORDER OF DEVELOPMENT OF THE DRAFT AUP
1. JUSTIFICATION OF THE CHOICE OF APM
2. COMPOSITION OF THE DESIGN DOCUMENTATION
3. WORK DRAWINGS
SECTION IV. HYDRAULIC CALCULATION OF WATER AND FOAM FIRE EXTINGUISHING INSTALLATIONS
1. HYDRAULIC CALCULATION OF WATER AND FOAM (LOW AND MEDIUM EXPENSION) FIRE EXTINGUISHING INSTALLATIONS
2. DETERMINATION OF THE SPECIFIC CONSUMPTION OF IRRIGATIONS TO CREATE WATER CURTAIN
3. PUMP PLANTS
SECTION V. CONSOLIDATION AND GENERAL PRINCIPLES FOR EXAMINATION OF AMS PROJECTS
1. APPROVAL OF AUP PROJECTS WITH STATE INSPECTION BODIES
2. GENERAL PRINCIPLES FOR EXAMINATION OF PAM PROJECTS
SECTION VI. REGULATORY DOCUMENTS, THE REQUIREMENTS OF WHICH ARE SUBJECT TO CONSIDERATION WHEN DEVELOPING A PROJECT FOR WATER AND FOAM FIRE EXTINGUISHING INSTALLATIONS
LITERATURE
APPENDIX 1 TERMS AND DEFINITIONS FOR WATER AND FOAM AMS
APPENDIX 2 SYMBOLS OF AUP AND THEIR ELEMENTS
ANNEX 3 DETERMINATION OF SPECIFIC FIRE LOAD
APPENDIX 4 LIST OF PRODUCTS SUBJECT TO MANDATORY CERTIFICATION IN THE FIELD OF FIRE SAFETY (fire safety equipment)
APPENDIX 5 MANUFACTURERS OF WATER AND FOAM AUP
APPENDIX 6 TECHNICAL MEANS OF WATER AND FOAM AUP
APPENDIX 7 DIRECTORY OF BASIC PRICES FOR DESIGN WORKS ON FIRE PROTECTION OF FACILITIES
APPENDIX 8 LIST OF BUILDINGS, CONSTRUCTIONS, PREMISES AND EQUIPMENT TO BE PROTECTED BY AUTOMATIC FIRE EXTINGUISHING INSTALLATIONS
APPENDIX 9 EXAMPLE OF CALCULATION OF SPRINKLER (Drencher) DISTRIBUTION NETWORK OF WATER AND FOAM AUP
ANNEX 10 EXAMPLE OF WORK DRAFT WATER AMS
APPENDIX 11 EXAMPLE OF TERMS OF REFERENCE FOR THE DEVELOPMENT OF A WORKING DRAFT WATER AUP
APPENDIX 12 EXAMPLE OF WORK DRAFT
REFERENCE SECTION
- 12.1. General requirements for control equipment of fire extinguishing installations
- 12.3. Installations of water and foam fire extinguishing. Requirements for control equipment. signaling requirements
- 12.4. Installations of gas and powder fire extinguishing. Requirements for control equipment. signaling requirements
- 12.5. Aerosol fire extinguishing installations. Requirements for control equipment. signaling requirements
- 12.6. Water mist extinguishing installations. Requirements for control equipment. signaling requirements
- 13.1. General provisions when choosing types of fire detectors for a protected object
- 13.2. Requirements for the organization of fire alarm control zones
- 13.14. Fire control devices, fire control devices. Equipment and its placement. Room for staff on duty
- 13.15. Fire alarm lines. Connecting and supply lines of fire automatics systems
- Annex A
- Appendix B
- Appendix D
- Appendix E. INITIAL DATA FOR CALCULATION OF THE MASS OF GAS EXTINGUISHING AGENTS
- Annex E
- Appendix G
- Annex I. General provisions for the calculation of POWDER FIRE EXTINGUISHING INSTALLATIONS OF MODULAR TYPE
- Appendix K
- Annex K
- Appendix M. SELECTION OF FIRE DETECTOR TYPES DEPENDING ON THE PURPOSE OF THE PROTECTED PREMISES AND THE TYPE OF FIRE LOAD
- Appendix N
- Appendix O. DETERMINATION OF THE SET TIME FOR FAULT DETECTION AND REPAIR
- Appendix P. DISTANCES FROM THE UPPER POINT OF OVERLAPPING TO THE MEASURING ELEMENT OF THE DETECTOR
- Annex P. METHODS FOR INCREASING THE RELIABILITY OF THE FIRE SIGNAL
Active Edition from 25.03.2009
| Document name | "CODE OF RULES" FOR THE SYSTEM OF FIRE PROTECTION. FIRE ALARM AND FIRE EXTINGUISHING INSTALLATIONS AUTOMATIC. The norms and rules of design "SP 5.13130.2009" (together with the "Methodology for calculating AUP parameters for surface fire extinguishing with water and low temperature foam", "Methods of calculating the parameters of fire extinguishing installations with highly foam", "Methods of calculating the mass of gas fire extinguishers for installations of gas fire extinguishing Extinguishing a volumetric way ”,“ Methods of hydraulic calculation of unit of carbon dioxide fire extinguishing ”,“ General provisions on calculating the powder fire extinguishing installations ”,“ Methodology for calculating automatic installations of aerosol fire extinguishing ”,“ Methods of calculating excessive pressure during the supply of fire extinguishing aerosol into the room ”) (approved by the Order of the Ministry of Emergency Situations of the Russian Federation of March 25, 2009 N 175) |
| Type of document | methodology, norms, list, rules |
| Host body | Ministry of Emergency Situations of the Russian Federation |
| Document Number | 175 |
| Acceptance date | 01.01.1970 |
| Revision date | 25.03.2009 |
| Date of registration in the Ministry of Justice | 01.01.1970 |
| Status | valid |
| Publication |
|
| Navigator | Notes |
"CODE OF RULES" FOR THE SYSTEM OF FIRE PROTECTION. FIRE ALARM AND FIRE EXTINGUISHING INSTALLATIONS AUTOMATIC. The norms and rules of design "SP 5.13130.2009" (together with the "Methodology for calculating AUP parameters for surface fire extinguishing with water and low temperature foam", "Methods of calculating the parameters of fire extinguishing installations with highly foam", "Methods of calculating the mass of gas fire extinguishers for installations of gas fire extinguishing Extinguishing a volumetric way ”,“ Methods of hydraulic calculation of unit of carbon dioxide fire extinguishing ”,“ General provisions on calculating the powder fire extinguishing installations ”,“ Methodology for calculating automatic installations of aerosol fire extinguishing ”,“ Methods of calculating excessive pressure during the supply of fire extinguishing aerosol into the room ”) (approved by the Order of the Ministry of Emergency Situations of the Russian Federation of March 25, 2009 N 175)
Appendix C
IN 1. Algorithm for calculating the parameters of AFS during surface fire extinguishing with water and low expansion foam
B.1.1. Depending on the class of fire at the facility, the type of fire extinguishing agent is selected (sprayed or sprayed water or foam solution).
B.1.2. It is carried out taking into account the fire hazard and the speed of flame propagation, the choice of the type of fire extinguishing installation - sprinkler or deluge, aggregate or modular or sprinkler-drencher, sprinkler with forced start.
NOTE For the purposes of this Annex, unless otherwise specified, a sprinkler means both the actual water or foam sprinkler and the water spray.
B.1.3. The type of sprinkler fire extinguishing installation (water-filled or air) is set depending on the operating temperature of the automatic fire extinguishing system.
B.1.4. The nominal temperature of their operation is determined according to the ambient temperature in the area where the sprinklers are located.
B.1.5. They are accepted taking into account the selected group of the object of protection (according to Appendix B and tables 5.1 - 5.3 of this SP) irrigation intensity, consumption of fire extinguishing agent (FEA), maximum irrigation area, distance between sprinklers and duration of FFA supply.
B.1.6. The type of sprinkler is selected in accordance with its consumption, irrigation intensity and the area protected by it, as well as architectural and planning solutions of the protected object.
B.1.7. The tracing of the pipeline network and the plan for the placement of sprinklers are outlined; for clarity, the routing of the pipeline network along the object of protection is depicted in an axonometric view (not necessarily on a scale).
B.1.8. The dictating protected irrigated area is highlighted on the hydraulic plan-scheme of the AUP, on which the dictating sprinkler is located.
B.1.9. Hydraulic calculation of AUP is carried out:
It is determined taking into account the normative intensity of irrigation and the height of the sprinkler according to the irrigation diagrams or passport data, the pressure that must be provided at the dictating sprinkler, and the distance between the sprinklers;
Diameters of pipelines are assigned for various sections of the AUP hydraulic network; at the same time, the speed of movement of water and foam concentrate solution in pressure pipelines should be no more than 10 m/s, and in suction pipelines - no more than 2.8 m/s; the diameter in the suction pipelines is determined by hydraulic calculation, taking into account the cavitation reserve of the fire pump used;
The flow rate of each sprinkler located in the accepted dictated protected irrigation area is determined (taking into account the fact that the flow rate of sprinklers installed on the distribution network increases with distance from the dictate sprinkler), and the total flow rate of sprinklers protecting the area irrigated by them;
The calculation of the distribution network of the sprinkler AFS is checked based on the condition of operation of such a number of sprinklers, the total flow of which and the intensity of irrigation on the accepted protected irrigated area will be at least the standard values given in tables 5.1 - 5.3 of this SP. If in this case the protected area is less than that indicated in tables 5.1 - 5.3, then the calculation must be repeated with increased diameters of the distribution network pipelines. When using sprayers, the irrigation intensity or pressure at the dictating sprayer is assigned according to the normative and technical documentation developed in the prescribed manner;
The distribution network of the deluge AFS is calculated based on the condition of simultaneous operation of all deluge sprinklers of the section, which ensures fire extinguishing in the protected area with an intensity not less than the standard one (tables 5.1 - 5.3 of this SP). When using sprayers, the irrigation intensity or pressure at the dictating sprayer is assigned according to the normative and technical documentation developed in the prescribed manner;
The pressure in the supply pipeline of the calculated section of the distribution network that protects the accepted irrigated area is determined;
The hydraulic losses of the hydraulic network are determined from the calculated section of the distribution network to the fire pump, as well as local losses (including in the control unit) in this pipeline network;
Calculated taking into account the pressure at the inlet of the fire pump, its main parameters (pressure and flow);
The type and brand of the fire pump is selected according to the design pressure and flow rate.
IN 2. Distribution network calculation
B.2.1. The layout of sprinklers on the AUP distribution pipeline is most often performed according to a symmetrical, asymmetric, symmetrical ring or asymmetric ring scheme (Figure B.1).
B.2.2. The estimated flow rate of water (foaming agent solution) through the dictating sprinkler located in the dictating protected irrigated area is determined by the formula:
d_1-2 - diameter between the first and second sprinklers of the pipeline, mm;
Q_1-2 - fuel consumption, l/s;
mu - flow coefficient;
v is the speed of water movement, m/s (should not exceed 10 m/s).
B.2.5. The pressure loss P_1-2 in the section L_1-2 is determined by the formula:
Q_1-2 - total consumption of the first and second sprinklers, l/s;
K_t - specific characteristic of the pipeline, l ^ 6 / s ^ 2;
A - specific resistance of the pipeline, depending on the diameter and roughness of the walls, c^6 / l^2;
B.2.6. The specific resistance and specific hydraulic characteristic of pipelines for pipes (made of carbonaceous materials) of various diameters are given in Table B.1 and B.2.
Table B.1
SPECIFIC RESISTANCE FOR DIFFERENT DEGREES OF ROUGHNESS OF PIPES
| Diameter | Resistivity A, s^2 / l^6 | |||
| Rated DN | Estimated, mm | The greatest roughness | Medium roughness | The smallest roughness |
| 20 | 20,25 | 1,643 | 1,15 | 0,98 |
| 25 | 26 | 0,4367 | 0,306 | 0,261 |
| 32 | 34,75 | 0,09386 | 0,0656 | 0,059 |
| 40 | 40 | 0,04453 | 0,0312 | 0,0277 |
| 50 | 52 | 0,01108 | 0,0078 | 0,00698 |
| 70 | 67 | 0,002893 | 0,00202 | 0,00187 |
| 80 | 79,5 | 0,001168 | 0,00082 | 0,000755 |
| 100 | 105 | 0,0002674 | 0,000187 | - |
| 125 | 130 | 0,00008623 | 0,0000605 | - |
| 150 | 155 | 0,00003395 | 0,0000238 | - |
Table B.2
SPECIFIC HYDRAULIC CHARACTERISTICS OF PIPELINES
| Pipe type | Nominal diameter DN | Outer diameter, mm | Wall thickness, mm | Specific characteristic of the pipeline K_t, x 10 ^ (-6) l ^ 6 / s ^ 2 |
| Steel electrowelded (GOST 10704-91) | 15 | 18 | 2,0 | 0,0755 |
| 20 | 25 | 2,0 | 0,75 | |
| 25 | 32 | 2,2 | 3,44 | |
| 32 | 40 | 2,2 | 13,97 | |
| 40 | 45 | 2,2 | 28,7 | |
| 50 | 57 | 2,5 | 110 | |
| 65 | 76 | 2,8 | 572 | |
| 80 | 89 | 2,8 | 1429 | |
| 100 | 108 | 2,8 | 4322 | |
| 100 | 108 | 3,0 | 4231 | |
| 100 | 114 | 2,8 | 5872 | |
| 100 | 114* | 3,0* | 5757 | |
| 125 | 133 | 3,2 | 13530 | |
| 125 | 133* | 3,5* | 13190 | |
| 125 | 140 | 3,2 | 18070 | |
| 150 | 152 | 3,2 | 28690 | |
| 150 | 159 | 3,2 | 36920 | |
| 150 | 159* | 4,0* | 34880 | |
| 200 | 219* | 4,0* | 209900 | |
| 250 | 273* | 4,0* | 711300 | |
| 300 | 325* | 4,0* | 1856000 | |
| 350 | 377* | 5,0* | 4062000 | |
| Steel water and gas pipes (GOST 3262-75) | 15 | 21,3 | 2,5 | 0,18 |
| 20 | 26,8 | 2,5 | 0,926 | |
| 25 | 33,5 | 2,8 | 3,65 | |
| 32 | 42,3 | 2,8 | 16,5 | |
| 40 | 48 | 3,0 | 34,5 | |
| 50 | 60 | 3,0 | 135 | |
| 65 | 75,5 | 3,2 | 517 | |
| 80 | 88,5 | 3,5 | 1262 | |
| 90 | 101 | 3,5 | 2725 | |
| 100 | 114 | 4,0 | 5205 | |
| 125 | 140 | 4,0 | 16940 | |
| 150 | 165 | 4,0 | 43000 |
Note - Pipes with parameters marked with "*" are used in external water supply networks.
B.2.7. The hydraulic resistance of plastic pipes is taken according to the manufacturer's data, while it should be borne in mind that, unlike steel pipelines, the diameter of plastic pipes is indicated by the outer diameter.
B.2.8. Pressure at sprinkler 2:
| R | = P | + P | . | |||
| 2 | 1 | 1-2 |
B.2.9. Sprinkler 2 consumption will be:
B.2.10. Features of the calculation of a symmetrical scheme of a dead-end distribution network
B.2.10.1. For a symmetrical scheme (Figure B.1, section A), the calculated flow rate in the area between the second sprinkler and point a, i.e. in section 2-a, will be equal to:
| Q | = q | + q | . | |||
| 2-a | 1 | 2 |
B.2.10.2. The diameter of the pipeline in section L_2-a is assigned by the designer or determined by the formula:
B.2.10.4. The pressure at point a will be:
| R | = P | + P | . | |||
| a | 2 | 2-a |
B.2.10.5. For the left branch of row I (Figure B.1, section A), it is required to ensure the flow rate Q_2-a at pressure P_a. The right branch of the row is symmetrical to the left, so the flow rate for this branch will also be equal to Q_2-a, therefore, the pressure at point a will be equal to P_a.
B.2.10.6. As a result, for row I we have a pressure equal to P_a, and water flow:
The diameter is increased to the nearest nominal value in accordance with GOST 28338.
B.2.10.8. The hydraulic characteristic of the rows, made structurally the same, is determined by the generalized characteristic of the calculated section of the pipeline.
B.2.10.9. The generalized characteristic of row I is determined from the expression:
B.2.10.11. The pressure at point b will be:
B.2.10.13. The calculation of all subsequent rows until the calculated (actual) water flow and the corresponding pressure are obtained is carried out similarly to the calculation of row II.
B.2.11. Features of the calculation of an asymmetric dead-end network scheme
B.2.11.1. The right side of section B (Figure C.1) is not symmetrical to the left, so the left branch is calculated separately, determining P_a and Q "_3-a for it.
B.2.11.2. If we consider the right side of the 3rd row (one sprinkler) separately from the left 1-a (two sprinklers), then the pressure in the right side P "_a should be less than the pressure P_a in the left side.
B.2.11.3. Since there cannot be two different pressures at one point, a larger value of pressure P_a is taken and the corrected (adjusted) flow rate for the right branch Q_3-a is determined:
| Q_3-a = Q "_3-a | / | R_a / R "_a. |
B.2.11.4. Total water consumption from row I:
| Q | = Q | +Q | . | |||
| I | 2-a | 3-a |
B.2.12. Features of the calculation of symmetric and asymmetric ring circuits
B.2.12.1. Symmetric and asymmetric ring schemes (Figure B.1, sections C and D) are calculated similarly to a dead-end network, but at 50% of the calculated water flow for each half-ring.
AT 3. Hydraulic calculation of AUP
B.3.1. The calculation of sprinkler AFS is carried out from the condition:
| Q | <= | Q | , | ||
| n | With |
Q_n - normative consumption of sprinkler AFS according to tables 5.1 - 5.3 of this SP;
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