SU895454A1

SU895454A1 - Pneumatically started gas fire-extinguishing equipment

Info

Publication number: SU895454A1
Application number: SU792833859A
Authority: SU
Inventors: Владимир Андреевич Литвинов; Юрий Васильевич Быстров; Евгений Яковлевич Мокроусов; Сергей Иванович Фурин; Вилис Эдгарович Бодниекс; Карл Адольфович Мазинь
Original assignee: Высшая инженерная пожарно-техническая школа; Всесоюзный научно-исследовательский институт противопожарной обороны; Валмиерский Завод Противопожарного Оборудования
Priority date: 1979-10-31
Filing date: 1979-10-31
Publication date: 1982-01-07

Description

Изобретение относится к области пожарной техники, а именно к установкам газового пожаротушения с пневматическим пуском, и предназначено для обнаружения и тушения пожаров во взрывоопасных закрытых помещениях. ⁵ The invention relates to the field of fire fighting equipment, and in particular to gas fire extinguishing installations with pneumatic start-up, and is intended for the detection and extinguishing of fires in explosive enclosed spaces. ⁵

Известна установка газового пожаротушения с пневматическим пуском, содержащая побудительную линию, включающую воздушный баллон, пусковой воздушный клапан, оросители-побу-¹⁰дители, обратные клапаны, зарядную станцию и выпускную линию, включающую баллоны с огнегасительным составом, коллектор, запорный клапан, соединенную с защищаемым помещением и связанную с побудительной линией через запорный клапан Ф.A gas fire extinguishing installation with a pneumatic start-up is known, comprising a induction line including an air cylinder, an air start valve, sprinklers ¹⁰ , check valves, a charging station and an exhaust line including fire extinguishing cylinders, a manifold, a shut-off valve connected to the protected the room and connected to the induction line through the check valve F.

Наличие в этой установке двух сеи- *□ тей трубопроводов и большого количества соединительных связей усложняет ее конструкцию и увеличивает металлоемкость .The presence in this installation of two networks of pipelines and a large number of connecting connections complicates its design and increases the metal consumption.

²²

Целью изобретения является упрощение конструкции и снижение металлоемкости установки газового пожаротушения.The aim of the invention is to simplify the design and reduce the metal consumption of the gas fire extinguishing installation.

Цель достигается тем, что предлагаемая установка газового пожаротушения с пневматическим пуском содержащая побудительную линию, включающую воздушный баллон, пусковой воздушный клапан, оросители-побудители, обратные клапаны, зарядную станцию и выпускную линию, включающую баллоны с огнегасительным составом, коллектор, запорный клапан, соединенную с защищаемым помещением и связанную с побудительной линией через запорный клапан, а ороситель-побудитель соединен с запорным клапаном выпускной линии и через обратный клапан побудительной линии с воздушным баллоном. При этом ороситель-побудитель выполнен в. виде пневмоцилиндра, выходное отверстие которого закрыто мембраной, а шток поршня имеет режущую кромку и отверстие для сообщения входного канала пневмоцилиндра с его выходным отверстием, причем мембрана закреплена посредством термочувствительного припоя,The goal is achieved in that the proposed gas fire extinguishing installation with a pneumatic start-up comprising a motive line including an air cylinder, an air start valve, sprinkler sprays, non-return valves, a charging station and an exhaust line including fire extinguishing cylinders, a manifold, a shut-off valve connected to the room to be protected and connected to the induction line through the shut-off valve, and the sprinkler-inducer is connected to the shut-off valve of the outlet line and through the check valve nii with an air balloon. In this case, the sprinkler-stimulator is made in. the form of a pneumatic cylinder, the outlet opening of which is closed by a membrane, and the piston rod has a cutting edge and an opening for communicating the inlet channel of the pneumatic cylinder with its outlet, the membrane being fixed by means of a heat-sensitive solder,

На фиг.1 показана предлагаемая установка! на фиг.2 - ороситель-побудитель! на фиг.З ~ конструктивные элементы оросителя-побудителя.Figure 1 shows the proposed installation! figure 2 - sprinkler inducer! on fig.Z ~ structural elements of the irrigator-inducer.

Установка состоит из баллонов 1 с огнетушащим составом, на которых установлены выпускные головки 2, коллектор 3 с предохранительным 4 и.запорным 5 клапанами. Пусковой воздушный баллон 6 с пусковым воздушным клапаном 7 соединены через трубопровод 8, вентиль 9 и обратный клапан 10с запорным клапаном 5· Распределительное устройство 11 соединено трубопроводом 12 с клапаном 5, а трубопроводом 13 с пусковым баллоном 6. Понижающий редуктор 14 соединен выпускной линией 15 с оросителями-побудителями 16. Электроконтактный манометр 17 установлен на трубопроводе· 18. Реле времени 19 связано электрической цепью 20 с электроконтактный манометром 17, щитом управления 21 и зарядной станцией 22, которая через трубопровод 23 и обратный клапан 24 соединен с воздушным баллоном 6.Воздушный баллон 6 соединен трубопроводом 25, на котором установлен электроконтактный 'манометр 26, понижающим редуктором 14 и далее через трубопроводы 27 и 18, обратный клапан 28 с оросителями-побудителями 16 на выпускной линии 15. Ороситель-побудитель 16 (см.фиг.2) имеет корпус 29, внутри которого установлен полый клапан 30 со сквозным отверстием 31, запирающий своим нижним концом выходное отверстие 32 в корпусе (см.фиг.З), к наружной торцовой поверхности которого винтами 33 прикреплена шайба 34 из теплоизоляционного материала с фольгированным снаружи покрытием, к которому термочувствительным припоем припаяна мембрана 35. Верхний торец корпуса 29 закрыт крышкой Зб, в которую упирается поршень 37 со штоком, имеющим на конце_режущую кромку, и сквозное отверстие 38, закрытое резиновой пробкой 39. Поршень 37 удерживается пружиной 40. На клапане 30 и поршне 37 установлены уплотнительные кольца 41,42,43 и прокладка 44. К корпусу оросителя-побудителя приварен штуцер 45.The installation consists of cylinders 1 with a fire extinguishing composition, on which exhaust heads 2 are installed, a manifold 3 with safety 4 and 5 shutoff valves. The start-up air cylinder 6 with the start-up air valve 7 is connected through a pipe 8, a valve 9 and a non-return valve 10 to a shut-off valve 5 · The switchgear 11 is connected by a pipe 12 to a valve 5, and a pipe 13 with a start-up cylinder 6. A reduction gear 14 is connected by an exhaust line 15 s induction irrigators 16. An electrical contact pressure gauge 17 is installed on the pipe · 18. A time switch 19 is connected by an electric circuit 20 to the electrical contact pressure gauge 17, a control panel 21 and a charging station 22, which is connected through a pipe 23 and the twin valve 24 is connected to the air cylinder 6. The air cylinder 6 is connected by a pipe 25, on which an electrical contact pressure gauge 26 is installed, a reduction gear 14 and then through pipelines 27 and 18, a check valve 28 with sprinklers 16 on the discharge line 15. the driver 16 (see FIG. 2) has a body 29, inside of which a hollow valve 30 with a through hole 31 is installed, which closes the outlet opening 32 in the body with its lower end (see FIG. 3), the washer is attached to the outer end surface of the screws 33 34 of thermal insulation the outer material with a foil coated on the outside, to which a membrane 35 is soldered with a heat-sensitive solder. The upper end of the housing 29 is closed by a cover Зb, against which the piston 37 abuts against the rod having a cutting edge at the end, and the through hole 38 closed by a rubber stopper 39. The piston 37 is held by a spring 40. O-rings 41,42,43 and a gasket 44 are installed on the valve 30 and the piston 37. A fitting 45 is welded to the body of the irrigator-inducer.

895454 4895454 4

Установка пожаротушения работает следующим образом.Installation fire extinguishing works as follows.

При возникновении пожара и повышении температуры внутри защищаемого помещения мембрана 35 прогревается до температуры плавления термочувствительного припоя и пробкой 39 под действием сжатого воздуха, находящегося в полости 37, отрывается от шайбы 34. Резиновая пробка 39, перекрывающая отверстие 38, выпадает и сжатый воздух через отверстия 31 и 38 выходит через выходное отверстие. Вследствие этого давление в выпускной 5 линии 15 снижается, и срабатывает пусковой воздушный клапан 7 воздушного баллона 6. Воздух под избыточным давлением из баллона 6 по трубопроводам 8 и 13 поступает к коллектору 3 и за~ q .порному клапану 11 , вскрывает выпускные головки 2 баллоное 1 с огнетушащим составом и открывает запорный клапан 11. Огнетушащий состав под избыточным давлением из баллонов 1 поступа₅ ет в коллектор 3, далее по трубопроводу 12 через запорный клапан 11 по выпускной линии 15 к оросителям-побудителям.When a fire occurs and the temperature inside the protected room rises, the membrane 35 warms up to the melting temperature of the heat-sensitive solder and the stopper 39 is detached from the washer 34 by the action of compressed air in the cavity 37. The rubber stopper 39, which covers the opening 38, drops out the compressed air through the openings 31 and 38 exits through the outlet. As a result, the pressure in the outlet 5 of the line 15 decreases, and the starting air valve 7 of the air cylinder 6 is triggered. Air under excessive pressure from the cylinder 6 flows through pipelines 8 and 13 to the manifold 3 and opens the outlet heads 2 through ~ q. 1 with extinguishing agent and opens the shut-off valve 11. The extinguishing agent under positive pressure from cylinders 1 Received ₅ is a manifold 3, then via line 12 through a check valve 11 to exhaust line 15 to the sprinklers driving force.

Под действием давления огнетуша₀ щего состава происходит срабатывание невскрывшихся оросителей-побудителей и следующим образом.Under the pressure of a fire extinguishing agent of ₀ composition, unexploded sprinkler-stimulants are triggered as follows.

Клапан 30 поднимается вверх, часть огнетушащего состава по сквозному отверстию 31 поступает в надпоршне⁵ вое пространство, перемещает поршень 37 вниз и прорезает режущей кромкой мембрану 35. Огнетушащий состав через прорезанное отверстие поступает в защищаемое помещение.The valve 30 rises, a part of the extinguishing agent through the through hole 31 enters the nadporshnoy ^5th space, moves the piston 37 down and cuts the membrane 35 through the cutting edge. The extinguishing agent through the slotted hole enters the protected room.

¹⁰ В режиме Дежурство из выпускной линии установки пожаротушения возможны утечки сжатого воздуха. Контакты манометра 17 сблокированы с реле времени 19 с выдержкой времени,рае^IS ной времени при срабатывании наиболее удаленного оросителя-побудителя. При малых утечках сжатого воздуха давление на манометре 17 будет оставаться постоянным, а давление в воздушном баллоне 6 будет падать, вследствие чего электроконтактный манометр 26 подает команду через щит управления 21 на зарядную станцию 22 на подзарядку, одновременно со щита >5 управления подается световой и звуковой сигнал Утечка. При пожаре скорость падения давления в выпускной линии будет высокой, и электроконтект5 ный манометр, сблокированный с реле времени 19, выдает сигнал на щит управления 21 Пожар. В этом случае зарядная станция не включается. ¹⁰ In Standby mode, compressed air leaks may occur from the exhaust line of the fire fighting installation. The contacts of the pressure gauge 17 are interlocked with the time relay 19 with a time delay equal to ^IS time when the most distant sprinkler-actuator is triggered. With small leaks of compressed air, the pressure on the pressure gauge 17 will remain constant, and the pressure in the air cylinder 6 will drop, as a result of which the electrical contact pressure gauge 26 gives a command through the control panel 21 to the charging station 22 to recharge, simultaneously light and sound are supplied from the control panel> 5 Signal Leak. In the event of a fire, the rate of pressure drop in the outlet line will be high, and the electrical wiring gauge, interlocked with time switch 19, will signal the control panel 21 Fire. In this case, the charging station does not turn on.

Совмещение побудительных распределительных трубопроводов в одну сеть позволит упростить конструкцию и снизить металлоемкость установок газового тушения, что приведет к их удешевлению.Combining incentive distribution pipelines into one network will simplify the design and reduce the metal consumption of gas extinguishing installations, which will lead to their cost reduction.

Claims

The invention relates to the field of fire fighting equipment, namely to gas fire extinguishing installations with pneumatic starting, and is intended for detecting and extinguishing fires in explosive closed rooms. A gas fire extinguishing installation with a pneumatic start-up is known, which contains an incentive line, including an air cylinder, a starting air valve, sprinklers, return valves, a charging station and an exhaust line that includes fire-extinguishing cylinders, a manifold, a shut-off valve connected to the protected connected to the incentive line through the stop valve tl. The presence in this installation of two networks of pipelines and a large number of connecting connections complicates its design and increases the metal capacity. The aim of the invention is to simplify the design and reduce the metal consumption of the gas fire extinguishing installation. The goal is achieved by the fact that the proposed gas fire extinguishing installation with pneumatic start-up contains an incentive line, including an air cylinder, a starting air valve, sprinklers, check valves, a charging station and an exhaust line, including fire-extinguishing cylinders, a manifold, a shut-off valve, connected with the protected room and connected to the motive line through the shut-off valve, and the booster irrigator is connected to the shut-off valve of the exhaust line and through the check valve line with the air bladder. In this case, the irrigator-booster is made in. a pneumatic cylinder, the outlet of which is closed by a membrane, and the piston rod has a cutting edge and a hole for communication of the inlet channel of the pneumatic cylinder with its outlet, and the membrane is fixed by means of heat-sensitive solder. Figure 1 shows the proposed installation in figure 2 - irrigator-seeder; on fig.Z constructive elements of irrigator - awesome. The installation consists of cylinders 1 with fire extinguishing composition, on which exhaust heads 2, manifold 3 with safety valve k and shut-off valve 5 are installed. The starting air cylinder 6 with the starting air valve 7 is connected via pipeline 8, valve 9 and non-return valve 10 to the shut-off valve 5- Switchgear 11 is connected by pipeline 12 to valve 5, and pipe 13 to the starting cylinder 6, the reducing gear 1 is connected to the outlet line 15 with irrigators by mini-impellers 16, Electrocontact pressure gauge 17. Installed in pipeline- 18, Time relay 19 is connected by an electrical circuit 20 to electrocontact pressure gauge 17, control panel 21 and charging station 22, which through conduit 23 and the check valve 2 is connected to the air balloon 6. The air cylinder 6 is connected by pipe 25, on which an electrical contact pressure gauge 26 is installed, reducing gear 1 and then through pipe 27 and 18, the check valve 28 to the boosters 16 on the discharge bar 15. The booster sprinkler 16 (see Fig. 2) has a housing 29, inside of which a hollow valve 30 is installed with a through hole 31t, with its lower end locking an outlet opening 32 in the housing (see Fig. 3), to the outer end surface of which screws 33 attached washer Z of warm an insulating material with a foil-coated coating, to which thermosensitive solder is bonded to the membrane 35. The upper end of the housing 29 is closed with a safety cover, into which the piston 37 rests with a rod having a cutting edge at the end, and a bore hole 38 closed by a rubber stopper 39. The piston 37 is held by the spring 0. On the valve 30 and the piston 37, there are installed sealing rings 1,2,3 and a gasket 4. A +5 fitting is attached to the housing of the actuator. 44 The fire extinguishing installation works as follows. When a fire occurs and the temperature inside the protected premises rises, the membrane 35 warms up to the temperature of the heat-sensitive solder melting and the plug 39 under the action of compressed air in the cavity 37 is detached from the washer. The rubber stopper 39 blocking the aperture 38 drops out and compressed air through the holes 31 and 38 out through the outlet. As a result, the pressure in the exhaust line 15 decreases, and the starting air valve 7 of the air cylinder 6 is activated. The pressurized air from the cylinder 6 through pipelines 8 and 13 flows to the manifold .3 and to the volley valve 11, opens the exhaust heads 2 of the cylinders 1 with extinguishing agent composition and opens the shut-off valve 11. The extinguishing composition under pressure from the cylinders 1 enters the manifold 3, then through pipe 12 through the shut-off valve 11 through the outlet line 15 to the sprinkler m-impellers. Under the action of the pressure of the extinguishing agent, the non-extinguishing stimuli trigger in the following manner. The valve 30 rises, a part of the fire extinguishing composition enters through the aperture 31 into the over piston space, moves the piston 37 down and cuts the membrane 35 with a cutting edge. The fire extinguishing composition enters the protected room through the slotted opening. In the Duty mode from the exhaust line of the fire extinguishing installation possible leakage of compressed air. The manometer 17 contacts are interlocked with time relay 19 with a time delay equal to the time when the most remote sprinkler is triggered. With small leaks of compressed air, the pressure on the pressure gauge 17 will remain constant, and the pressure in the air cylinder 6 will drop, as a result of which the electrical contact pressure gauge 26 sends a command through the control panel 21 to the charging station 22 to recharge, simultaneously with the control panel Beep sound. In case of fire, the rate of pressure drop in the outlet line will be high, and the electrocontact pressure gauge, interlocked with time relay 19, sends a signal to the control panel 21 Fire. In this case, the charge of the station is not included. Combining the incentive distribution pipelines into one set will simplify the design and reduce the metal intensity of gas extinguishing installations, which will lead to their cheaper prices. Claim 1. Gas-extinguishing installation with pneumatic start, containing a motivating line, including an air cylinder, start-up air valve, sprinklers, check valves, charging station and outlet line, including cylinders with (fire-fighting composition, manifold, stop valve, connected to the protected space and connected with HRCH

fS 2c alarm line through a shut-off valve, characterized in that, in order to simplify the design and reduce the metal capacity, the sprinkler driver is connected to the shut-off valve of the outlet line and through the check valve of the stimulus line to the air balloon.

2. Installation according to claim 1, the difference is that the irrigator-booster is made in the form of a pneumatic cylinder, the outlet of which is closed by a membrane, and the piston rod has a cutting edge and a hole for communicating the inlet channel of the pneumatic cylinder with its outlet, secured by heat-sensitive solder. Sources of information taken into account during the examination 1. A. Baratov, N. Ivanov. Fire fighting in the chemical and petrochemical industries. M., 1979, p.300.

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