RU2496545C2 - Modular automatic fire-fighting system - Google Patents

Modular automatic fire-fighting system Download PDF

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Publication number
RU2496545C2
RU2496545C2 RU2011137225/12A RU2011137225A RU2496545C2 RU 2496545 C2 RU2496545 C2 RU 2496545C2 RU 2011137225/12 A RU2011137225/12 A RU 2011137225/12A RU 2011137225 A RU2011137225 A RU 2011137225A RU 2496545 C2 RU2496545 C2 RU 2496545C2
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RU
Russia
Prior art keywords
gas
extinguishing agent
fire
liquid mixture
fire extinguishing
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RU2011137225/12A
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Russian (ru)
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RU2011137225A (en
Inventor
Олег Савельевич Кочетов
Мария Олеговна Стареева
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Олег Савельевич Кочетов
Мария Олеговна Стареева
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Priority to RU2011137225/12A priority Critical patent/RU2496545C2/en
Publication of RU2011137225A publication Critical patent/RU2011137225A/en
Application granted granted Critical
Publication of RU2496545C2 publication Critical patent/RU2496545C2/en

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Abstract

FIELD: fire-fighting facilities.
SUBSTANCE: invention relates to fire-fighting equipment. The modular automatic fire-fighting system comprises a vessel, a starting cylinder with working gas, a pipeline network with sprinklers. The vessel with a fire extinguishing agent is fastened by the brackets to the wall of the premise and has a device of gaseous phase discharge and a device of forming the gas-liquid mixture of the vortex type. The discharge device is combined with dimensional probe for the fire extinguishing agent. The device of forming is made in the form of a conical mixing chamber with a tangential inlet in the form of a flexible hose in the upper part. The hose is connected to the starting cylinder with the working gas (e.g. nitrogen or CO2). Supply of the extinguishing agent is carried by a vortex element which is formed as a conical perforated spiral. Supply of gas-liquid mixture to the central pipe is carried out from the lower part of the chamber, which is connected to a drain device of fire extinguishing agent. The vertical pipe of the mixing chamber is connected to fire extinguishing agent filling device and the pressure signal indicator. Each node of the distribution network comprises a distribution device of gas-liquid mixture. For separation of the flow in two directions a standard T-socket is used. Each sprinkler or set of sprinklers is equipped with an orientation unit in one or two planes.
EFFECT: increased operation speed of fire-fighting system.
2 dwg

Description

The invention relates to fire fighting equipment.
Known modular fire extinguishing system with a vortex apparatus for forming a gas-liquid mixture, containing a vessel in which a fire extinguishing substance is stored, a starting cylinder with a working gas, a network of pipelines with sprinklers according to the patent of the Russian Federation No. 2413554, class. A62A 3/10, publ. 03/10/1996 (prototype).
A disadvantage of the known system is the relatively low speed.
The technical result is to increase the speed of the fire extinguishing system.
This is achieved by the fact that in a modular fire extinguishing system with a vortex apparatus for forming a gas-liquid mixture containing a vessel in which a fire extinguishing substance is stored, a starting cylinder with working gas, a network of pipelines with irrigators, the vessel is attached by brackets to the building’s building structure and has a gas phase discharge device, combined with a measuring probe for extinguishing agent, and equipped with a device for forming a gas-liquid mixture of a vortex type, which is made in the form of a conical mixing chamber with tangential th inlet at the top, designed as flexible high pressure hose connected to the trigger cylinder filled with a working gas (e.g., nitrogen or CO 2), the supply of extinguishing agent is carried by the vortex element coaxial chamber and adapted as a conical perforated spiral with a perforation coefficient lying in the range of 50 ÷ 80%, and the gas-liquid mixture is supplied to the central pipeline from the bottom of the chamber connected to the extinguishing agent discharge device, combined with a safety valve, while the vertical pipe of the mixing chamber is connected to the device for extinguishing agent and pressure signaling device, and the starting cylinder is located next to the container for extinguishing agent and is equipped with a locking and starting device for electric or thermomechanical starting, and each node of the distribution network includes a gas-liquid mixture distribution device moreover, when dividing the flow into two directions, a standard tee is used, and when dividing the flow into three or more directions, it is used zuetsya special design of the distribution device, such as cell-type, and each block of sprinklers or irrigation device is provided with orientation in one or two planes.
In FIG. 1 is a diagram of a modular automatic fire extinguishing system, FIG. 2 is a diagram of a sprinkler.
The modular fire extinguishing system contains a vessel 1 in which a fire extinguishing agent is stored. It is attached by brackets 18 to the building’s building structure and has a gas phase discharge device 5 combined with a measuring probe for extinguishing agent.
In standby mode in the vessel 1 for the extinguishing agent there is no excess pressure. The vessel 1 is equipped with a device 2 for forming a gas-liquid mixture of a vortex type, which is made in the form of a conical mixing chamber with a tangential inlet in the upper part, made in the form of a flexible hose 9 of high pressure, connected to a starting cylinder 7 filled with working gas (for example, nitrogen or CO 2 )
The extinguishing agent is supplied through the vortex element 20, the coaxial chamber 2 and made in the form of a conical perforated spiral with a perforation coefficient lying in the range of 50 ÷ 80%, and the gas-liquid mixture is supplied to the central pipe 11 from the bottom of the chamber connected to the extinguishing device drain substances, combined with a safety valve 4. The vertical pipe 19 of the chamber 2 is connected to the device bay 3 extinguishing agent and a pressure switch 6.
The working gas for the modular installation is stored in the launch cylinder 7, located next to the container for the extinguishing agent, which is equipped with a locking and starting device 8 of electric or thermomechanical starting.
The bracket 10 is used to mount the cylinder to the building structure. For centralized installations, the working gas is stored in a working gas battery, the composition of which is determined by the project and is not part of the module.
To ensure the supply of a gas-liquid mixture of optimal concentration to all sprinklers 14, each distribution network node 17 must include a gas-liquid mixture distribution device, a standard tee 12 is used when dividing the flow into two directions, and a special design distribution device 13 is used when dividing the flow into three or more directions , for example chamber type.
Each sprinkler 14 or block of sprinklers 15 is equipped with an orientation device 16 in one or two planes.
Each sprinkler 14 consists of a connecting element 21 and a side branch 22. At one end of the branch there is an annular seal 23 to which a ball 26 is pressed by an ejector device 24, made in the form of a bellows, connected by a wire 25 to a controlled power source (not shown). Another the end of the side branch is hermetically sealed with a plug 27. The outlet nozzles 28 together with the blocking device are attached to the supply pipe 29.
Modular fire extinguishing system operates as follows.
In standby mode in the vessel 1 for the extinguishing agent there is no excess pressure. When the ZPU is triggered on the launch cylinder 7, the working gas enters the device 2 for forming a gas-liquid mixture and provides a gas-liquid mixture of the required concentration due to the vortex element 20, made in the form of a conical perforated spiral with a perforation coefficient lying in the range of 50 ÷ 80%.
Formed gas-liquid mixture through the Central pipe 11 enters the nodal point of the distribution network, and then through the distribution network 17 to all sprinklers 14. Each sprinkler 14 or block of sprinklers 15 is equipped with an orientation device 16 in one or two planes.
The sprinkler works and is installed as follows.
If necessary, stop the flow of water from the sprinkler to the ejector device 24 an electrical impulse is supplied. The ejector device through the O-ring 23 pushes the ball 26 from the side branch 22 into the connecting element 21. The ball under the influence of water pressure in the pipe 29 enters the connection of the outlet nozzle 28 and closes its outlet.
The effectiveness of the system ensures the outflow from the sprinklers previously obtained in a special device 2 gas-liquid mixture. This makes it possible to obtain a high droplet velocity (up to 200 m / s) at low pressures (0.3-1.0) MPa, which contributes to their effective crushing; creating a special vortex flow regime of a gas-liquid mixture using a conical mixing chamber with a tangential inlet.

Claims (1)

  1. A modular automatic fire extinguishing system containing a vessel in which a fire extinguishing agent is stored, a starting gas cylinder with a working gas, a network of pipelines with sprinklers, the vessel is attached by brackets to the building’s building structure and has a gas phase discharge device combined with a measuring probe for a fire extinguishing substance and equipped with a forming device gas-liquid mixture of a vortex type, which is made in the form of a conical mixing chamber with a tangential inlet in the upper part, made in the form of a flexible hose highly pressure, connected to a starting cylinder filled with a working gas (for example, nitrogen or СО 2 ), while the extinguishing agent is supplied through a vortex element, a coaxial chamber and made in the form of a conical perforated spiral with a perforation coefficient lying in the range of 50 ÷ 80% and the gas-liquid mixture is supplied to the central pipeline from the lower part of the chamber connected to the extinguishing agent discharge device combined with a safety valve, while the vertical chamber pipe is more it is connected to the fire extinguisher device and pressure switch, and the launch cylinder is located next to the fire extinguisher container and is equipped with a shut-off device for electric or thermomechanical start-up, and each distribution network unit includes a gas-liquid mixture distribution device, and when the flow is divided into two directions a standard tee is used, and when dividing the flow into three or more directions, a special design distribution device is used, for example p chamber type, and each sprinkler or block of sprinklers is equipped with an orientation device in one or two planes, characterized in that each sprinkler consists of a connecting element and a side branch, in one of the ends of which contains an annular seal, to which an ejector device made in the form a bellows is pressed by a wire connected to a controlled power source, and the other end of the side branch is hermetically sealed with a plug, while the outlet nozzles together with an overlapping device attached to the supply pipe.
RU2011137225/12A 2011-09-09 2011-09-09 Modular automatic fire-fighting system RU2496545C2 (en)

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RU2496545C2 true RU2496545C2 (en) 2013-10-27

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2577648C1 (en) * 2015-02-20 2016-03-20 Олег Савельевич Кочетов Kochetov automatic fire extinguishing system
RU2646677C1 (en) * 2017-01-13 2018-03-06 Олег Савельевич Кочетов Automatic fire-fighting system
RU2652006C2 (en) * 2015-05-20 2018-04-24 Мария Михайловна Стареева Fire-extinguishing installation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2027453C1 (en) * 1991-07-03 1995-01-27 Всероссийский научно-исследовательский институт противопожарной обороны (филиал) Fire sprinkler
RU94007117A (en) * 1994-02-24 1996-08-20 Товарищество с ограниченной ответственностью Научно-производственное объединение предприятие "Краев" Space fire extinguishing method and apparatus
RU2394619C1 (en) * 2009-08-21 2010-07-20 Олег Савельевич Кочетов Fire fighting method using gas-liquid mixture
US20110180276A1 (en) * 2008-04-10 2011-07-28 Utc Fire & Security Corporation Fire suppression system with improved two-phase flow distribution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2027453C1 (en) * 1991-07-03 1995-01-27 Всероссийский научно-исследовательский институт противопожарной обороны (филиал) Fire sprinkler
RU94007117A (en) * 1994-02-24 1996-08-20 Товарищество с ограниченной ответственностью Научно-производственное объединение предприятие "Краев" Space fire extinguishing method and apparatus
US20110180276A1 (en) * 2008-04-10 2011-07-28 Utc Fire & Security Corporation Fire suppression system with improved two-phase flow distribution
RU2394619C1 (en) * 2009-08-21 2010-07-20 Олег Савельевич Кочетов Fire fighting method using gas-liquid mixture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2577648C1 (en) * 2015-02-20 2016-03-20 Олег Савельевич Кочетов Kochetov automatic fire extinguishing system
RU2652006C2 (en) * 2015-05-20 2018-04-24 Мария Михайловна Стареева Fire-extinguishing installation
RU2646677C1 (en) * 2017-01-13 2018-03-06 Олег Савельевич Кочетов Automatic fire-fighting system

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