CN105148439A - Dry powder extinguishing system with emergency shutdown function - Google Patents

Dry powder extinguishing system with emergency shutdown function Download PDF

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Publication number
CN105148439A
CN105148439A CN201510648443.6A CN201510648443A CN105148439A CN 105148439 A CN105148439 A CN 105148439A CN 201510648443 A CN201510648443 A CN 201510648443A CN 105148439 A CN105148439 A CN 105148439A
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CN
China
Prior art keywords
valve
nitrogen
dry powder
emergency
bottle
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Pending
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CN201510648443.6A
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Chinese (zh)
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杨国建
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ZHEJIANG YU'AN FIRE FIGHTING EQUIPMENT CO Ltd
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ZHEJIANG YU'AN FIRE FIGHTING EQUIPMENT CO Ltd
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Priority to CN201510648443.6A priority Critical patent/CN105148439A/en
Publication of CN105148439A publication Critical patent/CN105148439A/en
Pending legal-status Critical Current

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Abstract

Disclosed is a dry powder extinguishing system with an emergency shutdown function. The system comprises a fire alarm control system, a dry powder tank, nitrogen gas cylinders, a partition ball valve, dry powder nozzles, a nitrogen gas start cylinder and a system pipe network. The nitrogen gas cylinders are provided with cylinder head valves. First check valves are arranged between the cylinder head valves and a pipeline. A gas collecting pipe is provided with a normally open solenoid valve and connected with a branch pipe. The branch pipe connected with a normally closed solenoid valve. The normally closed solenoid valve is connected with a time-delay relay. The normally closed solenoid valve is provided with a power supply signal and connected with the normally open solenoid valve and the time-delay relay respectively through a control circuit. The control circuit is connected with a system center control emergency start/stop button and a system site emergency start/stop button. The system center control emergency start/stop button and the system site emergency start/stop button are in parallel connection. According to the dry powder extinguishing system, an emergency shutdown control system is designed to be on the gas collecting pipe between the nitrogen gas cylinders and the dry powder tank, so that emergency cutting off is achieved very fast when the devices of the extinguishing system are operated wrongly; loss is reduced; reliability is improved.

Description

A kind of have the powder extinguishing system stopped in emergency
Technical field
The fire-fighting system technical field that the present invention relates to, particularly relates to a kind of dry powder extinguishing installation.
Background technology
All there is significant impact for the productive life of people and economic development in fire, therefore in fire-fighting domain, extinguishing device is one of indispensable equipment.Petroleum chemical industry, manufacturing enterprise, because of inflammable, the explosion hazard of its main production factors, are the emphasis fire prevention units in fire-fighting program.How for physical condition and objective circumstances, adopt low cost, high efficiency means of fire, fire is eliminated the key subjects that the budding stage is in the early stage every profession and trade, enterprise's fire safety.According to GB50347-2004 " powder extinguishing system design specification " requirement, powder extinguishing system can be arranged to combined distribution system and unit-independent system, and guard plot and the object of protection sum of combined distribution system protection must not more than 8.Powder extinguishing system, with after fire alarm control system interlock, realizes automatically starting, manually boots and start with mechanical emergency.At present, all dry powder self-extinguishing devices all use multiparty control, realize starting by alarm host machine Controlling solenoid valve.
Automatic fire extinguisher is widely used in various aspects in fire-fighting domain, is provided with automatically and the mode of manually booting is necessary in automatic fire extinguishing system, but startup in automatic fire extinguisher is often without emergency shut-down control device formula.Because it controls interlock spot position multioperation trouble, just normally start so export often equipment once signal, when running into equipment malfunction work and careless touching, tend causes device start, thus causes great loss consequence.The patent No. that prior art structure the applicant authorizes is the Chinese utility model patent of ZL201520094294.9, a kind of combined imputation type powder extinguishing system, when it automatically starts or manually boots, only need output one road active signal, easy and simple to handle, improve system automation level, simplify system architecture, improve reliability.Above-mentioned prior art Problems existing is: when system obtains starting the signal of telecommunication or doing mechanical emergency operation, system sprays dry powder with regard to starting, and cannot realize stopping in emergency, cause user to lose.
At present, the technology application of all automatic fire extinguisher multiple spot feedback control types.How to ensure that fire extinguisher system apparatus can stop in emergency in time when maloperation and false alarm, reducing the loss is problem demanding prompt solution.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, by the design to discharge, between nitrogen cylinder and dry powder can, discharge designs emergency shut-down control device system, at fire extinguisher system apparatus when grasping by mistake, Field Force and middle control operator on duty can realize emergency cut-off, soon to reduce the loss.
The technical scheme that the technical problem that the present invention solves adopts is:
A kind of have the powder extinguishing system stopped in emergency, comprise fire alarm control system 3, dry powder can 1, nitrogen cylinder 2, subregion ball valve 13, dry powder shower nozzle 15, nitrogen starts bottle 4 and system pipe network, nitrogen cylinder 2 is provided with bottle valve 7, check valve 1 is provided with between bottle valve 7 and discharge b, it is characterized in that discharge b being arranged a normally open type magnetic valve 21, discharge b is connected with arm e, connection normally closed solenoid valve 22 on arm e, normally closed solenoid valve 22 is connected with time-delay relay 23, normally closed solenoid valve 22 is controlled by time-delay relay 23, be provided with power supply signal to be connected with time-delay relay 23 with normally closed solenoid valve 22 respectively by control circuit d, control circuit d is connected with system Central Control Room emergency start/stop button 6 and system for field emergency start/stop button 5, emergency start/stop button 6 and system for field emergency start/stop button 5 connection parallel with one another is controlled in system.
By the design of pneumatic pipeline, normally open type magnetic valve 21 and normally closed solenoid valve 22 are set above discharge b between nitrogen cylinder 2 and dry powder can 1.
1, normally open type magnetic valve effect: when error starting, only need to control output 1 road active signal, enter the normally open type magnetic valve 21 of the discharge b of dry powder can 1 by action immediately, normally open type magnetic valve 21 closure set tracheae b, be filled with the nitrogen cylinder 2(source of the gas in the dry powder can 1 of automatic fire extinguisher) will be forcibly turned off, because in dry powder can 1, extinguishing chemical can not get driving force, now in dry powder can 1, extinguishing chemical can not spray.When automatic fire extinguisher needs to restart, then the normally open type magnetic valve 21 that can reset makes nitrogen cylinder 2 gas continue to inject tank body, and extinguishing chemical sprays.Control circuit d of the present invention is connected with in system and controls emergency start/stop button 6 and system for field emergency start/stop button 5, in system, control emergency start/stop button 6 and system for field emergency start/stop button 5 connection parallel with one another.When error starting, can realize the closedown of normally open type magnetic valve 21 by controlling emergency start/stop button 6 and system for field emergency start/stop button 5 in system or open, Field Force and middle control operator on duty can realize emergency cut-off soon or continue to start powder system.
2, normally closed solenoid valve effect: this normally closed solenoid valve 22 is the use as nitrogen cylinder 2 gas exhaust usually.When error starting, normally open type magnetic valve 21 closes gas circuit discharge b, owing to entering the gas of extinguishing chemical dry powder can 1 by cut-out open in usual, now stores a large amount of gas in nitrogen cylinder 2 and gas circuit discharge b.Consider that fire-extinguishing apparatus may restart fire extinguishing, deposit in dry powder can 1 so this gas can not enter extinguishing chemical, can not drain in atmosphere easily, now just need pressurize.When determining that equipment does not restart fire extinguishing, normally closed solenoid valve 22, by automatic or manually opened, is discharged, source of the gas in discharge b to guarantee device security by arm e.Normally closed solenoid valve 22 is connected with power supply signal with control circuit d by time-delay relay 23, opens normally closed solenoid valve 22, realize time delay automatic ventilating function according to the time that time-delay relay 23 sets.
The opening and closing of active signal (24V/1.5A) control circuit d can be realized the while of controlling emergency start/stop button 6 and system for field emergency start/stop button 5 in system, to realize energising and the no power of normally closed solenoid valve 22 and time-delay relay 23, control unlatching or the closedown of normally closed solenoid valve 22 and control circuit d.
During concrete enforcement, control circuit d is provided with status indicator lamp 24.When control circuit d conducting, control circuit d is shinny, and the position of installing determined by status indicator lamp 24 according to the position at scene.
During concrete enforcement, status indicator lamp 24 is provided with two, one of them with control emergency start/stop button 6 in system and connect, its status indicator lamp 24 is located at Central Control Room, the long-range display of the system mode as Central Control Room; Another one is connected in the bus of control circuit d, as the display of system mode scene.
During concrete enforcement, dry powder can 1 output is connected with collection tube cell c, and collection tube cell c is connected with the dry powder shower nozzle 15 of each protection zone respectively by subregion ball valve 13, and subregion ball valve 13 correspondence is provided with ball valve and starts cylinder 14.
During concrete enforcement, nitrogen starts nitrogen cylinder 2 opened by bottle 4 bottle valve 7 by pilot valve 8, fire alarm control system 3 starts bottle 4 by magnetic valve 10 and nitrogen and is connected, fire alarm control system 3 realizes by magnetic valve 10 unlatching that nitrogen starts bottle 4, bottle valve 7 on each nitrogen cylinder 2 is connected with the input of dry powder can 1 by domination set tracheae b, the gas output end of nitrogen startup bottle 4 starts cylinder 14 with corresponding ball valve respectively and is connected, the gas output end that nitrogen starts bottle 4 is connected with the pilot valve 8 of each nitrogen cylinder 2 respectively by pneumatic pipeline a, gas output end and the pneumatic pipeline a of nitrogen startup bottle 4 are provided with check valve 2 12.
During concrete enforcement, nitrogen startup bottle 4 starts cylinder 14 respectively by pressure-reducing valve 1 and is connected with the check valve 2 12 connecting pneumatic pipeline a with corresponding ball valve.
During concrete enforcement, the discharge b that the bottle valve 7 on each nitrogen cylinder 2 is connected with the input of dry powder can is provided with pressure-reducing valve 2 16, manual ball valve 1 and safety valve 17.
During concrete enforcement, the collection tube cell c that dry powder can 1 output is connected with subregion ball valve 13 is provided with manual ball valve 2 19 and level pressure explosion diaphragm 20.
Combined imputation type powder extinguishing system of the present invention, subregion ball valve 13 is pneumatic ball valve, and the operating pressure that ball valve is opened is 0.6 ~ 0.8MPa.Power gas source is the high pressure nitrogen (70L/15MPa) in nitrogen cylinder 2, provides power for dry powder is transported to scene of fire.During use, when certain protection zone breaking out of fire, Signal transmissions is to fire alarm control system 3, the magnetic valve 10 that fire alarm control system 3 starts bottle 4 with the nitrogen of corresponding protection zone links, corresponding magnetic valve 10 is opened nitrogen and is started bottle 4(4L/6MPa), low-pressure nitrogen (0.6 ~ 0.8MPa) is provided by pressure-reducing valve 1, the low-pressure nitrogen of nitrogen startup bottle 4 enters pneumatic pipeline a by check valve 2 12 on the one hand, the low-pressure nitrogen of nitrogen startup bottle 4 opens the bottle valve 7 of nitrogen cylinder 2 by pilot valve 8, due to check valve 2 12, the high pressure nitrogen of nitrogen cylinder 2 can not be back to and enter startup cylinder 14, the low-pressure nitrogen of nitrogen startup bottle 4 opens the protection zone of corresponding breaking out of fire on the other hand, starts cylinder 14, starts the subregion ball valve 13 that cylinder 14 opens the protection zone of breaking out of fire.Simultaneously; because the bottle valve 7 of nitrogen cylinder 2 is opened, discharge high pressure nitrogen, high pressure nitrogen is after pressure reducer decompression; enter dry powder can 1 by discharge b, the dry powder of dry powder can 1 enters dry powder shower nozzle 15 by the subregion ball valve 13 of the unlatching collecting the protection zone of tube cell c and fire and puts out a fire.
The corresponding nitrogen in each protection zone of the present invention starts bottle 4(4L/6MPa); by the design of the pneumatic pipeline of the present invention program; and adopt check valve 2 12; when automatically starting or manually booting; only need output one road active signal (24V/1.5A), automatically start power gas source and the subregion ball valve 13 of nitrogen cylinder 2.When doing mechanical emergency operation, open starting box, by the hand push button above lower electromagnet, system starts dry powder device automatically.
The invention has the beneficial effects as follows: the present invention gas collection pipe designs emergency shut-down control device system between nitrogen cylinder and dry powder can, at fire extinguisher system apparatus when grasping by mistake, Field Force and middle control operator on duty can realize emergency cut-off soon, to reduce the loss, improve reliability.
Detailed description of the invention
As shown in Figure 1, a kind of have the powder extinguishing system stopped in emergency, comprise fire alarm control system 3, dry powder can 1, nitrogen cylinder 2, subregion ball valve 13, dry powder shower nozzle 15, nitrogen starts bottle 4 and system pipe network, nitrogen cylinder 2 is provided with bottle valve 7, nitrogen starts nitrogen cylinder 2 opened by bottle 4 bottle valve 7 by pilot valve 8, fire alarm control system 3 starts bottle 4 by magnetic valve 10 and nitrogen and is connected, fire alarm control system 3 realizes by Controlling solenoid valve 10 unlatching that nitrogen starts bottle 4, bottle valve 7 on each nitrogen cylinder 2 is connected with the input of dry powder can 1 by discharge b, check valve 1 is provided with between bottle valve 7 and discharge b, the discharge b that bottle valve 7 on each nitrogen cylinder 2 is connected with the input of dry powder can is provided with pressure-reducing valve 2 16, manual ball valve 1 and safety valve 17, dry powder can 1 output is connected with collection tube cell c, collection tube cell c is connected with the dry powder shower nozzle 15 of each protection zone respectively by subregion ball valve 13, the collection tube cell c that dry powder can 1 output is connected with subregion ball valve 13 is provided with manual ball valve 2 19 and level pressure explosion diaphragm 20, subregion ball valve 13 correspondence is provided with ball valve and starts cylinder 14, the gas output end of nitrogen startup bottle 4 starts cylinder 14 with corresponding ball valve respectively and is connected, the gas output end that nitrogen starts bottle 4 is connected with the pilot valve 8 of each nitrogen cylinder 2 respectively by pneumatic pipeline a, gas output end and the pneumatic pipeline a of nitrogen startup bottle 4 are provided with check valve 2 12, nitrogen startup bottle 4 starts cylinder 14 respectively by pressure-reducing valve 1 and is connected with the check valve 2 12 connecting pneumatic pipeline a with corresponding ball valve.Discharge b is arranged a normally open type magnetic valve 21, discharge b is connected with arm e, connection normally open type magnetic valve 21 on arm e, normally closed solenoid valve 22 is connected with time-delay relay 23, be provided with power supply signal to be connected with time-delay relay 23 with normally closed solenoid valve 22 respectively by control circuit d, control circuit d is connected with in system and controls emergency start/stop button 6 and system for field emergency start/stop button 5, emergency start/stop button 6 and system for field emergency start/stop button 5 connection parallel with one another is controlled in system, control circuit d is provided with status indicator lamp 24.When control circuit d conducting, control circuit d is shinny, and status indicator lamp 24 is provided with two, one of them with control emergency start/stop button 6 in system and connect, another one is connected in the bus of control circuit d.
When error starting, only need to control output 1 road active signal (24V/1.5A), enter the normally open type magnetic valve 21 of the discharge b of dry powder can 1 by action immediately, normally open type magnetic valve 21 closes gas path pipe b, be filled with the nitrogen cylinder 2(source of the gas in the dry powder can 1 of automatic fire extinguisher) will be forcibly turned off, because in dry powder can 1, extinguishing chemical can not get driving force, now in dry powder can 1, extinguishing chemical can not spray.When automatic fire extinguisher needs to restart, then the normally open type magnetic valve 21 that can reset makes nitrogen cylinder 2 gas continue to inject tank body, and extinguishing chemical sprays.Control circuit d of the present invention is connected with in system and controls emergency start/stop button 6 and system for field emergency start/stop button 5, in system, control emergency start/stop button 6 and system for field emergency start/stop button 5 connection parallel with one another.The opening and closing of active signal (24V/1.5A) control circuit d can be realized the while of controlling emergency start/stop button 6 and system for field emergency start/stop button 5 in system, to realize energising and the no power of normally closed solenoid valve 22 and time-delay relay 23, control unlatching or the closedown of normally closed solenoid valve 22 and control circuit d.When error starting, can by controlling the closedown that emergency start/stop button 6 and system for field emergency start/stop button 5 realize normally open type magnetic valve 21 in system, Field Force and middle control operator on duty can realize emergency cut-off soon.During middle control emergency start/stop button 6 closed condition, the status indicator lamp 24 be connected in the bus of control circuit d is shinny, and during system for field emergency start/stop button 5 closed condition, two status indicator lamps 24 are simultaneously shinny.
When error starting, normally open type magnetic valve 21 closure set tracheae b, owing to entering the gas of extinguishing chemical dry powder can 1 by cut-out open in usual, now stores a large amount of gas in nitrogen cylinder 2 and discharge b.Consider that fire-extinguishing apparatus may restart fire extinguishing, deposit in dry powder can 1 so this gas can not enter extinguishing chemical, can not drain in atmosphere easily, now just need pressurize.When determining that equipment does not restart fire extinguishing, normally closed solenoid valve 22, by automatic or manually opened, is discharged, source of the gas in discharge b to guarantee device security by arm e.Normally closed solenoid valve 22 is connected with power supply signal with control circuit d by time-delay relay 23, opens normally closed solenoid valve 22, realize time delay automatic ventilating function according to the time that time-delay relay 23 sets.Usual time-delay relay 23 setting-up time is 5 minutes.
Combined imputation type powder extinguishing system of the present invention, subregion ball valve 13 is pneumatic ball valve, and the operating pressure that ball valve is opened is 0.6 ~ 0.8MPa.Power gas source is the high pressure nitrogen (70L/15MPa) in nitrogen cylinder 2, provides power for dry powder is transported to scene of fire.During use, when certain protection zone breaking out of fire, Signal transmissions is to fire alarm control system 3, the magnetic valve 10 that fire alarm control system 3 starts bottle 4 with the nitrogen of corresponding protection zone links, corresponding magnetic valve 10 is opened nitrogen and is started bottle 4(4L/6MPa), low-pressure nitrogen (0.6 ~ 0.8MPa) is provided by pressure-reducing valve 1, the low-pressure nitrogen of nitrogen startup bottle 4 enters pneumatic pipeline a by check valve 2 12 on the one hand, the low-pressure nitrogen of nitrogen startup bottle 4 opens the bottle valve 7 of nitrogen cylinder 2 by pilot valve 8, due to check valve 2 12, the high pressure nitrogen of nitrogen cylinder 2 can not be back to and enter startup cylinder 14, the low-pressure nitrogen of nitrogen startup bottle 4 opens the protection zone of corresponding breaking out of fire on the other hand, starts cylinder 14, starts the subregion ball valve 13 that cylinder 14 opens the protection zone of breaking out of fire.Simultaneously; because the bottle valve 7 of nitrogen cylinder 2 is opened; discharge high pressure nitrogen; high pressure nitrogen is after pressure reducer decompression; dry powder can 1 is entered by discharge b; dry powder fully mixes with nitrogen; when on dry powder can, the pressure tabular value of 1 reaches 1.5Mpa; dry powder outlet level pressure explosion diaphragm 20 is opened; nitrogen and powder mixture enter dry powder shower nozzle 15 along the subregion ball valve 13 of the unlatching of the protection zone of collection tube cell c and fire and put out a fire; form dry powder cloud by dry powder shower nozzle 15, be ejected into burning things which may cause a fire disaster, cover alkyls fire and stamp out the flames.The dry powder of dry powder can 1 starts bottle 4(4L/6MPa by the corresponding nitrogen in each protection zone of the present invention); by the design of the pneumatic pipeline of the present invention program; and adopt check valve 2 12; when automatically starting or manually booting; only need output one road active signal (24V/1.5A), automatically start power gas source and the subregion ball valve 13 of nitrogen cylinder 2.When doing mechanical emergency operation, open starting box, by the hand push button above lower electromagnet, system starts dry powder device automatically.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, invention is further illustrated.
Fig. 1 is the theory structure schematic diagram of the embodiment of the present invention.
In figure: 1, dry powder can 2, nitrogen cylinder 3, fire alarm control system 4, nitrogen starts bottle 5, on-the-spot emergency start/stop button 6, middle control emergency start/stop button 7, bottle valve 8, pilot valve 9, check valve 1, magnetic valve 11, pressure-reducing valve 1, check valve 2 13, subregion ball valve 14, start cylinder 15, dry powder shower nozzle 16, pressure-reducing valve 2 17, safety valve 18, manual ball valve 1, manual ball valve 2 20, level pressure explosion diaphragm 21, normally open type magnetic valve 22, normally closed solenoid valve 23, time-delay relay 24, status indicator lamp a, pneumatic pipeline b, discharge c, collection tube cell d, control circuit e, arm.

Claims (8)

1. one kind has the powder extinguishing system stopped in emergency, comprise fire alarm control system (3), dry powder can (1), nitrogen cylinder (2), subregion ball valve (13), dry powder shower nozzle (15), nitrogen starts bottle (4) and system pipe network, nitrogen cylinder (2) is provided with bottle valve (7), check valve one (9) is provided with between bottle valve (7) and discharge (b), discharge (b) is arranged a normally open type magnetic valve (21), discharge (b) is connected with arm (e), the upper connection normally closed solenoid valve (22) of arm (e), normally closed solenoid valve (22) is connected with time-delay relay (23), normally closed solenoid valve (22) is controlled by time-delay relay (23), be provided with power supply signal to be connected with time-delay relay (23) with normally open type magnetic valve (21) respectively by control circuit (d), control circuit (d) is connected with in system and controls emergency start/stop button (6) and system for field emergency start/stop button (5), emergency start/stop button (6) and system for field emergency start/stop button (5) connection parallel with one another is controlled in system.
2. according to claim 1 a kind ofly have the powder extinguishing system stopped in emergency, and it is characterized in that control circuit (d) is provided with status indicator lamp (24).
3. according to claim 2 a kind ofly have the powder extinguishing system stopped in emergency, it is characterized in that status indicator lamp (24) is provided with two, one of them with control emergency start/stop button (6) in system and connect, its status indicator lamp (24) is located at Central Control Room, the long-range display of the system mode as Central Control Room; Another one is connected in the bus of control circuit (d), as the display of system mode scene.
4. a kind of according to claim 1,2 or 3 has the powder extinguishing system stopped in emergency; it is characterized in that dry powder can (1) output is connected with collection tube cell (c); collection tube cell (c) is connected with the dry powder shower nozzle (15) of each protection zone respectively by subregion ball valve (13), and subregion ball valve (13) correspondence is provided with ball valve and starts cylinder (14).
5. according to claim 4 a kind ofly have the powder extinguishing system stopped in emergency, it is characterized in that nitrogen starts nitrogen cylinder (2) opened by bottle (4) bottle valve (7) by pilot valve (8), fire alarm control system (3) starts bottle (4) by magnetic valve (10) and nitrogen and is connected, fire alarm control system (3) realizes by Controlling solenoid valve (10) unlatching that nitrogen starts bottle (4), bottle valve (7) on each nitrogen cylinder (2) is connected by the input of discharge (b) with dry powder can (1), the gas output end of nitrogen startup bottle (4) starts cylinder (14) respectively and is connected with corresponding ball valve, the gas output end that nitrogen starts bottle (4) is connected with the pilot valve (8) of each nitrogen cylinder (2) respectively by pneumatic pipeline (a), gas output end and the pneumatic pipeline (a) of nitrogen startup bottle (4) are provided with check valve two (12).
6. according to claim 4 a kind ofly have the powder extinguishing system stopped in emergency, and it is characterized in that nitrogen starts bottle (4) and starts cylinder (14) respectively with corresponding ball valve by pressure-reducing valve one (11) and be connected with the check valve two (12) connecting pneumatic pipeline (a).
7. according to claim 4 a kind ofly have the powder extinguishing system stopped in emergency, and it is characterized in that the discharge (b) that the bottle valve (7) on each nitrogen cylinder (2) is connected with the input of dry powder can is provided with pressure-reducing valve two (16), manual ball valve one (18) and safety valve (17).
8. according to claim 4 a kind ofly have the powder extinguishing system stopped in emergency, and it is characterized in that collection tube cell (c) that dry powder can (1) output is connected with subregion ball valve (13) is provided with manual ball valve two (19) and level pressure explosion diaphragm (20).
CN201510648443.6A 2015-10-09 2015-10-09 Dry powder extinguishing system with emergency shutdown function Pending CN105148439A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105435404A (en) * 2016-01-12 2016-03-30 浙江宇安消防装备有限公司 Dry powder extinguishing system with manual emergency stopping/starting device
CN106139493A (en) * 2016-08-12 2016-11-23 福建天广消防有限公司 A kind of release control system of dry-chemical fire extinguishing equipment
CN107320882A (en) * 2017-08-30 2017-11-07 天津神封科技发展有限公司 A kind of automatic emergency of intelligentized control method supplies nitrogen device

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CN2455282Y (en) * 2000-11-30 2001-10-24 刘欣传 Fire extinguisher
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CN104436477A (en) * 2014-12-01 2015-03-25 国家电网公司 Comprehensive fire fighting system and comprehensive fire fighting method of large-size oil-containing equipment of transformer substation
CN104667470A (en) * 2015-02-10 2015-06-03 浙江宇安消防装备有限公司 Combined distribution type dry powder extinguishing system
CN205108867U (en) * 2015-10-09 2016-03-30 浙江宇安消防装备有限公司 Dry powder fire extinguishing sys tem with emergency stop

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Publication number Priority date Publication date Assignee Title
EP0409237A3 (en) * 1989-07-19 1993-01-13 Hekatron Gmbh Fire extinguishing device utilizing a fire-extinguishing gas
CN2455282Y (en) * 2000-11-30 2001-10-24 刘欣传 Fire extinguisher
CN201823214U (en) * 2010-09-25 2011-05-11 四川神剑消防科技有限公司 Automatic supersonic dry powder fire extinguishing system
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CN205108867U (en) * 2015-10-09 2016-03-30 浙江宇安消防装备有限公司 Dry powder fire extinguishing sys tem with emergency stop

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105435404A (en) * 2016-01-12 2016-03-30 浙江宇安消防装备有限公司 Dry powder extinguishing system with manual emergency stopping/starting device
CN106139493A (en) * 2016-08-12 2016-11-23 福建天广消防有限公司 A kind of release control system of dry-chemical fire extinguishing equipment
CN107320882A (en) * 2017-08-30 2017-11-07 天津神封科技发展有限公司 A kind of automatic emergency of intelligentized control method supplies nitrogen device

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Application publication date: 20151216