SU787048A1

SU787048A1 - Fire-extinguishing system

Info

Publication number: SU787048A1
Application number: SU792716632A
Authority: SU
Inventors: Борис Иванович Басманов; Иван Ильич Макаров; Евгений Гаврилович Селин
Original assignee: Особое конструкторское бюро противопожарной техники
Priority date: 1979-01-24
Filing date: 1979-01-24
Publication date: 1980-12-15

Description

Изобретение относится к противопожарной технике, а именно к автоматическим уст ройствам пожаротушения для закрытых помещений, промышленных сооружений, хранилищ, судов водного транспорта и т. д.The invention relates to fire fighting equipment, namely to automatic fire extinguishing devices for enclosed spaces, industrial facilities, storage facilities, water transport vessels, etc.

Известна система пожаротушения, включающая источник сжатого газа, соединенный трубопроводом через пусковой клапан с емкостью с огнетушащим составом, соединенной с оросительными коммуникациями через распределительный клапан с пневматическим приводом, включающим поршень с толкателем, взаимодействующим с рычагом автоматического вскрытия распределительного клапана [1].A known fire extinguishing system, including a source of compressed gas, connected by a pipeline through a start valve with a tank with a fire extinguishing composition, connected to irrigation communications through a control valve with a pneumatic actuator, including a piston with a pusher interacting with a lever to automatically open the control valve [1].

Недостатком известной системы является то, что при пуске системы пожаротушения одновременно срабатывает пусковой клапан подачи газа в емкость и распределительный клапан подачи огнетушащего состава в оросительные коммутации и, в случае несрабатывания распределительного клапана по причине неисправности его или отказа пиропатрона, поданный в емкость газ может быть сдренажирован предохранительным клапаном в окружающую среду, т^к как давление газа в емкости выше рабочего. В этом случае для приведения системы в работоспособное положение необходимо подключить новый источник сжатого газа.A disadvantage of the known system is that when the fire extinguishing system is started, the start valve for supplying gas to the tank and the control valve for supplying the extinguishing agent to the irrigation switch are simultaneously triggered and, if the control valve does not work due to a malfunction or failure of the igniter, the gas supplied to the tank can be drained safety valve into the environment, t ^ k as the gas pressure in the tank is higher than the working one. In this case, to bring the system into a working position, it is necessary to connect a new source of compressed gas.

Цель изобретения — повышение надежности работы системы пожаротушения.The purpose of the invention is to increase the reliability of the fire extinguishing system.

₅ Поставленная цель достигается т£м, что поршень выполнен с осевым и радиальным каналами и имеет установленный в осевом канале со стороны подачи сжатого газа тарельчатый клапан cg стержнем и ограничителем движения стержня,.при этом стер10 жень входит в полость толкателя, перекрытую ограничителем движения стержня, а пусковой клапан соединен с емкостью огнетушащим составом посредством осевого и радиального каналов. ₅ The goal is achieved t £ m that the piston is made with axial and radial channels and has a poppet valve cg with a rod and a rod restraint installed in the axial channel from the compressed gas supply side. and the starting valve is connected to the tank with a fire extinguishing composition by means of axial and radial channels.

На фиг. 1 изображена схема предлагае¹⁵ мой системы пожаротушения; на фиг. 2 — распределительный клапан с предлагаемым золотниковым устройством.In FIG. 1 shows a diagram of a proposed ¹⁵ extinguishing system; in FIG. 2 - control valve with the proposed spool device.

Система пожаротушения включает источник сжатого газа 1, соединенный трубо20 проводами 2 и 3 через пусковые клапаны 4 и 5 с емкостью 6, заполненной огнетушащим составом, распределительные клапаны 7 и 8 и дроссели 9 и 10, обеспечивающие в емкости 6 заданное рабочее давление газа цри включения системы. Емкость снабжена предохранительным клапаном Ц и сифонной трубкой 12, соединенной с коллектором 13, который через распределительные клапаны 7 и 8 соединяется с оросительными коммуникациями 14 и 15.Каждый из распределительных клапанов 7 и 8 состоит из корпуса 16 с запорным механизмом 17, закрытое положение которого фиксируется поворотным рычагом 18. На корпусе установлен пневмоцилиндр 19, поршень 20 которого имеет* осевой и радиальный каналы, с одного торца поршня имеется полый толкатель 21, взаимодействующий с поворотным рычагом 18. В продольных пазах толкателя свободно установлен ограничитель 22, закрепленный гайкой 23. С другого торца поршня в канале установлены тарельчатый клапан 24 со стержнем и уплотнение 25. На цилиндре имеется входной штуцер 26 и выходной штуцер 27.The fire extinguishing system includes a source of compressed gas 1, connected by a pipe 20 with wires 2 and 3 through the start valves 4 and 5 with a capacity 6 filled with a fire extinguishing composition, control valves 7 and 8 and chokes 9 and 10, which provide a predetermined working pressure in the tank 6 for switching on the system . The tank is equipped with a safety valve C and a siphon tube 12 connected to a collector 13, which is connected through the distribution valves 7 and 8 to the irrigation communications 14 and 15. Each of the distribution valves 7 and 8 consists of a housing 16 with a locking mechanism 17, the closed position of which is fixed by a rotary lever 18. A pneumatic cylinder 19 is installed on the housing, the piston 20 of which has * axial and radial channels, from one end of the piston there is a hollow pusher 21 interacting with the rotary lever 18. In the longitudinal grooves the pusher, a limiter 22 is freely mounted, fixed by a nut 23. From the other end of the piston in the channel there is a poppet valve 24 with a rod and a seal 25. On the cylinder there is an inlet fitting 26 and an outlet fitting 27.

Система пожаротушения срабатывает от электрического или пневматического сигнала, полученного от датчиков или от пульта управления (на схеме не показано). Сигнал поступает на пусковой клапан 1 или 5 или одновременно на оба клапана, клапаны вскрываются и газ от источника 1 по трубопроводам 2 и 3 подается череш штуцер 26 в подпоршпевую полость пневмоцилиндра 19 распределительного клапана 7 или 8. Под воздействием сжатого газа поршень 20 перемещается вместе с тарельчатым клапаном 24 и толкателем 21, поворачивая рычаг 18. При повороте рычага на заданный угол открывается запорный механизм -17, одновременно с этим тарельчатый клапан 24 своим стержнем упирается в ограничитель 22, клапан останавливается и при дальнейшем перемещении поршня открывается. Газ по осевому и радиальному каналам поршня поступает в штуцер 27 и далее по трубопроводу через дроссели 9 и 10 в ем кость 6. При создании рабочего давления в емкости огнетушащий состав поступает через сифонную трубку 12 и коллектор 13 в распределительные клапаны 7 и 8 и далее в оросительные коммуникации 14 и 15 защищаемого Ьомещения.The fire extinguishing system is triggered by an electric or pneumatic signal received from the sensors or from the control panel (not shown in the diagram). The signal enters the start valve 1 or 5 or both valves at the same time, the valves open and gas from the source 1 is fed through pipelines 2 and 3 through the nipple 26 into the subspawn cavity of the pneumatic cylinder 19 of the control valve 7 or 8. Under the influence of compressed gas, the piston 20 moves together with the poppet valve 24 and the pusher 21, turning the lever 18. When the lever is rotated to a predetermined angle, the locking mechanism -17 opens, at the same time the poppet valve 24 rests with its stem against the stop 22, the valve stops and when lneyshem movement of the piston opens. Gas through the axial and radial channels of the piston enters the nozzle 27 and then through the pipeline through the throttles 9 and 10 to the tank 6. When creating the working pressure in the tank, the fire extinguishing composition passes through the siphon tube 12 and the manifold 13 to the distribution valves 7 and 8 and then to irrigation communications 14 and 15 of the protected premises.

Подача газа в емкость через распределительный клапан позволяет повысить надежность работы системы пожаротушения по сравнению с известным, причем в случае несрабатывания распределительного клапа1₀ на система остается работоспособной и может быть приведена в действие ручном пуском.The gas supply to the tank through the control valve allows to increase fire extinguishing system reliability in comparison with the known, and in case of failure distribution at klapa1 ₀ system remains operational and can be operated manually start.

Claims

(54) FIRE FIGHTING SYSTEM The invention relates to fire fighting equipment, in particular to automatic fire extinguishing devices for enclosed spaces, industrial buildings, storage facilities, ships of water transport, etc. A fire extinguishing system is known that includes a source of compressed gas connected by pipeline through a starting valve with a container with a fire extinguishing composition connected to the irrigation lines through a pneumatically actuated control valve including a piston with a pusher interacting with the lever av of the distribution valve 1. A disadvantage of the known system is that when the fire extinguishing system is started up, the gas supply start valve and the distribution valve of the fire extinguishing composition supply to the irrigation switchings are activated at the same time and, in the event of a failure of the distribution valve, due to its malfunction or failure The squib, the gas supplied to the tank can be drained by a safety valve, a valve to the environment, as the pressure of the gas in the tank is higher than the worker. In this case, to bring the system to a working position, it is necessary to connect a new source of compressed gas. The purpose of the invention is to increase the reliability of the fire extinguishing system. The goal is achieved that the piston is made with axial and radial channels and has a disc valve installed in the axial channel on the compressed gas supply side with a rod and a rod movement limiter. The rod enters the pusher cavity blocked by the rod movement limiter and the starting valve is connected with a capacity of fire-extinguishing composition through axial and radial channels. FIG. 1 shows a diagram of the proposed fire extinguishing system; in fig. 2 - control valve with the proposed spool valve. The fire extinguishing system includes a source of compressed gas 1, connected by pipelines 2 and 3 through starting valves 4 and 5 with a tank 6 filled with fire extinguishing composition, control valves 7 and 8 and throttles 9 and 10 providing the specified working gas pressure in the tank 6. The tank is equipped with a safety valve U and a siphon tube 12 connected to a manifold 13, which is connected to the irrigation lines 14 and 15 through the distribution valves 7 and 8. Each of the distribution valves 7 and 8 consists of the case 16 with a locking mechanism 17, the closed position of which is fixed by a pivoting lever 18. A pneumatic cylinder 19 is mounted on the casing, the piston 20 of which and the Meef axial and radial channels, at one end of the piston there is a hollow pusher 21 interacting with the pivoting lever 18. In the longitudinal grooves pusher freely installed limiter 22, secured by a nut 23. At the other end of the piston in the channel, there is a disk valve 24 with a stem and a seal 25. On the cylinder there is an inlet fitting 26 and an outlet fitting 27. The fire extinguishing system operates from an electric or pneumatic signal received from sensors from the control panel (not shown in the diagram). The signal goes to the starting valve 1 or 5, or both at the same time, the valves are opened and the gas from source 1 through pipelines 2 and 3 is fed through the coupling pipe 26 into the piston chamber of the pneumatic cylinder 19 of the control valve 7 or 8. Under the influence of compressed gas, the piston 20 moves along with disc valve 24 and the pusher 21, turning the lever 18. When turning the lever at a predetermined angle, the locking mechanism -17 opens, at the same time the disc valve 24 with its stem abuts against the stop 22, the valve stops and and further movement of the piston opens. Gas through the axial and radial channels of the piston enters Schthucer 27 and further along the pipeline through the throttles 9 and 10 into the bone L. When a working pressure is created in the tanks, the fire extinguishing composition flows through the siphon tube 12 and the collector 13 into the distribution valves 7 and 8 and further into the irrigation communications 14 and 15 of the protected space. The supply of gas into the tank through a distribution valve allows for improved reliability of the fire extinguishing system as compared to the known one, and in the event of a failure of the distribution valve, the system remains operational and can be activated by manual starting. The invention The fire extinguishing system, including a source of compressed gas, is connected by pipeline through a starting valve to a tank with a fire extinguishing composition connected to irrigation connections through a pneumatic-controlled distribution valve including a piston with a pusher that interacts with an automatic opening lever {) 1 distribution valve, characterized so that, in order to increase the reliability of the system, the piston is made with axial and radial channels and has side of the compressed gas poppet valve with a rod and a rod movement limiter, the rod enters the pusher cavity blocked by the rod movement limiter, and the starting valve is connected to the tank with fire extinguishing composition through axial and radial channels. Sources of information taken into account in the examination. 1. Fighting fires on ships. T. 2, Fire fighting means on ships. L., 1976, p. 189.