WO2021080463A1 - Dispositif de fermeture-alimentation à usages multiples d'un module d'extinction d'incendie par gaz - Google Patents

Dispositif de fermeture-alimentation à usages multiples d'un module d'extinction d'incendie par gaz Download PDF

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Publication number
WO2021080463A1
WO2021080463A1 PCT/RU2020/000545 RU2020000545W WO2021080463A1 WO 2021080463 A1 WO2021080463 A1 WO 2021080463A1 RU 2020000545 W RU2020000545 W RU 2020000545W WO 2021080463 A1 WO2021080463 A1 WO 2021080463A1
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WIPO (PCT)
Prior art keywords
gas
fire
housing
channel
inlet
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Application number
PCT/RU2020/000545
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English (en)
Russian (ru)
Inventor
Сергей Владимирович ЛЕКТОРОВИЧ
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Общество с ограниченной ответственностью "Инновационные Системы Пожаробезопасности"
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Publication of WO2021080463A1 publication Critical patent/WO2021080463A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers

Definitions

  • the invention relates to valve devices for pneumatic systems with non-combustible gas and is applicable, in particular, in suspended fire extinguishing modules with gas extinguishing agents.
  • a known fire extinguishing system for an autonomous refueling container station with two technological compartments containing a fire extinguishing module, sprayers, fire detectors, a self-firing type fire extinguisher located at the service site installed on a fuel storage container (see RF patent N ° 91700, IPC B60S 5/02 ( 2006.01), 2010).
  • this fire extinguishing system contains powder agents as fire extinguishing agents in technological modules. This significantly delays the start of extinguishing the fire, from the moment the command is received to use the reagent, since it takes a certain time for the chemical composition to react and, in addition, unused powder contaminates the technological compartments, since it is almost impossible to remove it later.
  • gas When extinguishing a fire, gas has a number of advantages over extinguishing agents such as water, foam or powder.
  • the gas composition has a dielectric property and does not lead to short circuiting of electrical devices and equipment. Due to its volatility, the gas mixture tends to fill everything the surrounding space, no matter how difficult it is to access. This makes gas extinguishing a unique and extremely effective method of extinguishing a fire. neither powder nor water can get into the technically complex and even impossible for their penetration units. For gas, a small gap or hole is enough for this. Once in a burning environment, the gas cloud disrupts the chemical reaction of the fire by displacing oxygen from the burning environment - one of the three important ingredients for the existence of a flame.
  • gas fire extinguishing is highly valued for its reliability in ensuring the fire safety of material assets.
  • These systems are installed in libraries, archives, server rooms, art galleries, technical rooms with electrical equipment.
  • Another of the advantages of this method of extinguishing a fire is the complete absence of any traces of impact on the extinguishing objects. If, in the case of using powder or water, the extinguishing objects often completely failed and could not be restored, then in the case of gas fire extinguishing this is excluded. After the complete elimination of the fire, the room needs to be ventilated. In modern facilities, such as server rooms, ventilation systems and hoods are already installed at the design stage. If the object does not have either one or the other, it is enough just to provide a small draft, and due to the air circulation, the room will clean itself.
  • an extinguishing agent to the atmosphere of a closed space, which is gaseous under normal conditions, in the event of a fire or to prevent a fire is known from the field of fire-fighting technology.
  • a system for extinguishing a fire in confined spaces is known.
  • an oxygen-displacing extinguishing agent which is gaseous under normal conditions (hereinafter simply referred to as "inert gas"), is rapidly introduced into the atmosphere of the enclosed space, i. E. within a very short period of time.
  • the introduction of an inert gas reduces the oxygen content of the room atmosphere to a certain predetermined "inert level".
  • This level of inertness corresponds to a reduced oxygen content, at which the ignition capacity of goods or materials stored in a given room is reduced to the extent that they cannot be ignited, and accordingly a fire that has already arisen will be extinguished (see patent DE 19811851, IPC A62S2 / 04; B01J19 / 14, 1999).
  • the quenching effect of the inerting process is based on the principle of oxygen substitution. As you know, normal ambient air is composed of 21% by volume oxygen, 78% by volume nitrogen and 1% by volume other gases. To extinguish a fire or also as a preventive protection against a fire, the oxygen content in the atmosphere of the protected room is reduced by supplying a gaseous extinguishing agent (for example, an inert gas). Fire extinguishing or fire prevention is known to occur when the oxygen content in the atmosphere of the protected space falls below the so-called "ignition prevention level". Prevention level Ignition is the level of inertia corresponding to a reduced oxygen concentration at which goods or materials stored in the protected area cannot ignite and / or burn.
  • a gaseous extinguishing agent for example, an inert gas
  • the level of prevention of ignition which is usually determined experimentally, depends on the fire load of the protected area.
  • the oxygen content corresponding to the level of prevention of ignition is usually in the range from 12% to 15% by volume.
  • the oxygen concentration corresponding to the ignition prevention level may even be lower than 12% by volume.
  • VdS Verband der SachverInstituter
  • the oxygen concentration in the protected area must reach the ignition prevention level within the first 60 seconds from the beginning of the filling of this space with gas. fire extinguishing agent.
  • the storage of the oxygen-substituting gas extinguishing agent can, for example, be carried out in compressed or liquefied form in gas cylinders.
  • a device can be provided for the production of a gas replacing oxygen, for example a so-called "nitrogen generator", the volume of gas produced by the device per unit of time must correspond to the volume of the protected room. This is especially necessary in the absence of other additional sources of inert gas besides the nitrogen generator. Then, if necessary, the available volume of inert gas is pumped through the pipeline into the protected space as quickly as possible, for example, through a system of pipes having corresponding outlet nozzles.
  • a known fire extinguishing system for a container filling station (option 1), which contains a fire extinguishing module, sprayers and fire detectors installed in the technological compartment of the station.
  • the gas fire extinguishing module is located in an additional remote container in a thermally insulated housing and is connected to the sprayers of the station's technological compartment by a fire extinguishing gas supply pipeline.
  • the gas fire extinguishing module is made in the form of a weight rack with extinguishing gas cylinders suspended from it.
  • An air heater is installed in a thermally insulated casing.
  • the weighing rack is equipped with load cells.
  • Fire extinguishing gas cylinders are equipped with automatic reducers (RF Patent Ns106593, IPC B60S 5/02 (2006.01), 2011).
  • shut-off and starting device which contains a housing with a pressure chamber in the inlet and a deluge chamber in the outlet, as well as a shut-off valve.
  • the device is made with the possibility of installing a device for controlling the movement of the shut-off valve when connecting the pressure chamber of the inlet branch pipe of the body to the cavity of the gas cylinder under a pressure higher than the atmospheric pressure.
  • the shut-off valve is made in the form of a glass having a lateral cylindrical wall and a bottom wall, on the outer surface of which a blind hole with an internal thread is made (see RF patent N ° 2411976, IPC A62C 37/08 (2006.01), 2010)
  • This locking and starting device is the impossibility of using it to fill the empty container with a new portion of gas. It is required to periodically disconnect the container from the locking and starting device to refuel it on the side, which leads to time costs during fire extinguishing for filling the container with a new portion of gas, as well as to a decrease in the reliability and durability of the locking and starting device as a whole and, as a consequence, ineffectiveness of its use ...
  • a reusable locking and starting device for a gas fire extinguishing installation comprising a cylindrical body with an axial channel, a stimulating chamber inside and with two branch pipes located at an angle to each other, inlet and outlet.
  • Inlet pipe coaxial with the body made with a valve seat, with a blind niche in it for the gas acting on the valve when filling an empty container with it, and with a pressure chamber connected to a container filled with an inert gas under pressure.
  • the outlet is made with a deluge chamber in it and with an adapter for attaching a device to it for filling the emptied container with a new portion of inert gas.
  • a movable shutter in the form of a glass with a bottom and a through groove in it, connected with the pressure chamber of the inlet pipe.
  • the outer diameter of the shutter at the bottom is less than the outer diameter of the rest of its part, and the transitional part of its outer surface, connecting parts of the shutter of different diameters, serves as a platform for raising the shutter above its seat due to the action of a new portion of gas under pressure on it when filling an empty container with it.
  • a spring is located in the shutter glass. The end of the body is closed from above with a cover with an axial hole.
  • a movable nipple with a spring-loaded axis is placed in the opening of the cover, which controls the movement of the shutter by forming a channel between its body and the opening of the cover for the inert gas flow from the stimulating chamber into the atmosphere.
  • the device is equipped with an electromagnetic drive with its own housing and an adapter sleeve with radial drainage holes installed in it with the formation between its drainage holes and the opposite end of the cover of the channel for the inert gas outlet to the atmosphere.
  • the electromagnetic drive is equipped with a spring-loaded pusher acting on the movement of the nipple axis, and an armature triggered by a control signal directed to its coil (see patent RF N ° 2690890, IPC A62C 37/08 (2006.01), 2018. ). This decision was made for a prototype.
  • the disadvantage of the device is the complex design of the device as a whole and the piston (shutter) in particular, as well as the presence of many intermediate elements between the piston (shutter) and the armature of the electromagnetic drive, which are involved in the process of holding the ZPU in the locked state.
  • a large number of seals and nipples increases the likelihood of gas leakage in the structure.
  • Large dimensions (inner diameter and length) of the deluge chamber through which charging takes place increase the refueling rate, but also increase the gas losses during refueling. Some of the gas is lost through the open channels of the gate.
  • the technical problem solved by the invention is to simplify the design of the device, while reducing gas losses.
  • the technical problem is solved due to the fact that in the known reusable locking and starting device of the gas fire extinguishing module containing a housing with inlet and outlet channels, a spring-loaded piston located in the housing and an electromagnetic valve, in accordance with the invention, the channels are made coaxial and separated by an internal partition, in the body has a side channel connected to the inlet and outlet channels in the area of the partition, in which a spring-loaded piston and an electromagnetic valve are installed; a through hole is made in the body, connecting the inlet channel to the atmosphere, at the inlet of which a fitting with a plunger is installed, which serves as a check valve.
  • the exhaust port is equipped with a nozzle.
  • the device is equipped with a pressure gauge.
  • the technical result from the use of all the essential features of the invention is to simplify the design while reducing the loss of gaseous extinguishing agent during refueling. This additionally significantly increases the reliability and durability of the device as a whole and the efficiency of its use.
  • the presence in the body of a through hole connecting the inlet channel to the atmosphere, at the inlet of which a fitting with a plunger is installed, which performs the function of a check valve and provides filling of the device, also greatly simplifies the design of the device from the point of view of gas filling. This improvement makes it possible to increase the reliability of the device as a whole and the efficiency of its use, to ensure the possibility of filling the container to which the device is connected with a gas extinguishing agent.
  • FIG. 1 - ZPU with an electromagnetic valve in a closed state
  • Figure 2 - ZPU with a solenoid valve in the open state
  • FIG. 3 filling the container with gas through the ZPU.
  • the reusable locking and starting device (ZPU) of the gas fire extinguishing module contains a housing 1 with coaxial inlet 2 and outlet 3 channels made in it, separated by an internal partition 4.
  • the inlet channel 2 is adapted to be connected to a container with gas (see Fig. 1, container conventionally not shown).
  • a side channel 5 is made in the body 1, connecting the inlet 2 and outlet 3 channels in the area of the partition 4.
  • a spring-loaded piston 6 is installed in the side channel 5 of the body.
  • the spring-loaded piston 6 is pressed against the inner partition 4 of the body in the closed position of the ZPU and blocks the passage of the gas extinguishing agent from the inlet channel 2 to the outlet 3.
  • the spring 7 ensures that the piston 6 is pressed against the partition 4 and the wall 8 of the outlet channel 3.
  • a solenoid valve 9 is installed at the outlet of the side channel 5 (see Fig. 1).
  • a through hole 10 is made in the upper part of the housing 1, which connects the inlet channel 2 to the atmosphere.
  • a fitting 11 with a plunger 12 is installed, which perform the function of a check valve and ensure the filling of the device (see Fig. 1, 2).
  • the outlet channel 3 is directly connected to the nozzle 13, which allows the gaseous extinguishing agent to be released without residue (no loss).
  • the device is equipped with a pressure gauge 14 installed in the nozzle 11.
  • Reusable shut-off and starting device refers to a controlled shut-off valve type, powered by the energy of the working environment, using starting devices powered by external energy sources.
  • a starting element used solenoid valve 9 (NC - normally closed).
  • NC - normally closed used solenoid valve 9
  • the spring-loaded piston 6 In the closed state of the reusable locking and starting device, the spring-loaded piston 6 is under the influence of the spring 7 and the pressure of the extinguishing agent with the propellant in cavity A, and thus blocks the path of the gas extinguishing agent to the nozzle 13.
  • the path of the GFFS is minimal, therefore, the response speed of the device is less than 10 seconds, which meets the requirements of GOST R 53281-2009.
  • the developed ZPU allows filling the tank with a new portion of GFFS after fire extinguishing, which provides reusable device.
  • the solenoid valve 9 allows you to actuate the ZPU multiple times without requiring replacement of components.
  • the function of a check valve is performed by a structure consisting of a plunger 12 and a nozzle 11.
  • the plunger 12 under the influence of the GFFS pressure in the inlet channel 2, closes the hole in the nozzle 11 and prevents the gas phase of the extinguishing agent or propellant gas from escaping during periodic checks of the control device operating parameters of the pressure gauge 14, the pressure indicator when it is disconnected, without discharging the module.
  • the spring-loaded piston 6 When filling the module, the spring-loaded piston 6 is under the influence of the spring 7 and the pressure of the extinguishing agent with the propellant gas in cavity A and closes the outlet of the GFFS into the exhaust channel 3.
  • the pressure gauge 14 is disconnected from the fitting 11, to which an adapter device (conventionally not shown) is connected for refueling ...
  • the plunger 12 under the influence of the pressure of the pumped-in GFFS, releases the hole in the nozzle 11, opens the entrance to the through hole 10 and through the inlet channel 2 GFFS enters the tank 15 of the module (see Fig. 3).
  • the inventive device can be manufactured on modern equipment using known materials.
  • the device can be repeatedly used in suspended modules for fire extinguishing with gas extinguishing agents.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

L'invention concerne des dispositifs de clapet pour des systèmes pneumatiques avec un gaz non combustible, et peut être utilisée dans des modules suspendus d'extinction d'incendies à l'aide de substances d'extinction d'incendie gazeuses. L'invention concerne un dispositif de fermeture-alimentation à usages multiples d'un module d'extinction d'incendie par gaz, lequel comprend un corps avec des canaux d'entrée et de sortie, un piston à ressort disposé dans le corps et un clapet électromagnétique; les canaux sont coaxiaux et sont séparés par une cloison interne; un canal latéral est réalisé dans le corps et relie les canaux d'entrée et de sortie dans la zone de la cloison où se trouve le piston à ressort et le clapet électromagnétique. Le corps comprend des ouvertures traversantes connectant le canal d'entrée avec l'atmosphère, à l'entrée duquel se trouve un raccord avec un plongeur qui remplit la fonction de clapet anti-retour. Le résultat technique consiste en une simplification de la structure tout en réduisant les pertes en substance d'extinction d'incendie gazeuse lors du remplissage.
PCT/RU2020/000545 2019-10-25 2020-10-16 Dispositif de fermeture-alimentation à usages multiples d'un module d'extinction d'incendie par gaz WO2021080463A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2019134286 2019-10-25
RU2019134286 2019-10-25

Publications (1)

Publication Number Publication Date
WO2021080463A1 true WO2021080463A1 (fr) 2021-04-29

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842857A (en) * 1973-04-06 1974-10-22 R Mccornack Metering valve construction
US6164383A (en) * 1999-08-17 2000-12-26 Thomas; Orrett H. Fire extinguishing system for automotive vehicles
GB2457397A (en) * 2006-12-01 2009-08-19 Victaulic Co Of America Fire suppression sprinkler system
CN106535996A (zh) * 2014-04-02 2017-03-22 泰科消防产品有限合伙公司 电动‑气动致动器组件
RU2684712C1 (ru) * 2018-08-31 2019-04-11 Акционерное Общество "Государственное Машиностроительное Конструкторское Бюро "Радуга" Имени А.Я. Березняка" Многоразовый пусковой клапан с расширенной зоной воздействия
RU2690890C1 (ru) * 2018-12-10 2019-06-06 Общество с ограниченной ответственностью Промышленно-коммерческая фирма "Полёт" (ООО ПКФ "Полёт") Многоразовое запорно-пусковое устройство установки газового пожаротушения

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842857A (en) * 1973-04-06 1974-10-22 R Mccornack Metering valve construction
US6164383A (en) * 1999-08-17 2000-12-26 Thomas; Orrett H. Fire extinguishing system for automotive vehicles
GB2457397A (en) * 2006-12-01 2009-08-19 Victaulic Co Of America Fire suppression sprinkler system
CN106535996A (zh) * 2014-04-02 2017-03-22 泰科消防产品有限合伙公司 电动‑气动致动器组件
RU2684712C1 (ru) * 2018-08-31 2019-04-11 Акционерное Общество "Государственное Машиностроительное Конструкторское Бюро "Радуга" Имени А.Я. Березняка" Многоразовый пусковой клапан с расширенной зоной воздействия
RU2690890C1 (ru) * 2018-12-10 2019-06-06 Общество с ограниченной ответственностью Промышленно-коммерческая фирма "Полёт" (ООО ПКФ "Полёт") Многоразовое запорно-пусковое устройство установки газового пожаротушения

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