CN115645784A - Air suction type detection automatic fire extinguishing device - Google Patents
Air suction type detection automatic fire extinguishing device Download PDFInfo
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- CN115645784A CN115645784A CN202211277382.3A CN202211277382A CN115645784A CN 115645784 A CN115645784 A CN 115645784A CN 202211277382 A CN202211277382 A CN 202211277382A CN 115645784 A CN115645784 A CN 115645784A
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- fire extinguishing
- extinguishing agent
- liquid
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- agent box
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- 238000001514 detection method Methods 0.000 title claims abstract description 56
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 268
- 239000007788 liquid Substances 0.000 claims abstract description 263
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 123
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 51
- 238000005422 blasting Methods 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000000779 smoke Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical group FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 6
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000001154 acute effect Effects 0.000 abstract description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract 2
- 239000003063 flame retardant Substances 0.000 abstract 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 21
- 238000005070 sampling Methods 0.000 description 17
- 230000009172 bursting Effects 0.000 description 12
- 238000003860 storage Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000004891 communication Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 230000001629 suppression Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides an air-breathing detection automatic fire extinguishing device, which comprises an air-breathing detector unit and an automatic fire extinguishing system in linkage control, wherein the automatic fire extinguishing system comprises a fire extinguishing control unit, a high-pressure nitrogen starting cylinder group unit, a nitrogen driving pipeline, a liquid fire extinguishing agent box unit, a liquid fire extinguishing agent conveying pipeline, a spray head and a pressure feedback signal device; the liquid fire extinguishing agent box unit comprises a box body, and an air inlet adapter provided with a driving side port blasting diaphragm and a liquid outlet adapter provided with an output side port blasting diaphragm, which are arranged on the box body; transversely establish a set of in the box body: the lower part is provided with a vertical clapboard with a strip-shaped air guide hole or/and the bottom surface is provided with an air guide plate frame with an acute angle inclined plane along the flowing direction of the liquid extinguishing agent. This device not only utilizes the formula detector unit that breathes in to carry out very early fire detection to the flame retardant zone, can release liquid fire extinguishing agent pressure low, gently to the flame retardant zone in moreover through automatic fire extinguishing system, reduces impact pressure to electrical equipment, avoids the secondary damage.
Description
Technical Field
The invention belongs to the technical field of fire fighting, and particularly relates to an air suction type detection automatic fire extinguishing device.
Background
At present, cabinets such as various power distribution cabinets, instrument and meter cabinets, data cabinets, power supply cabinets, energy storage stations, battery charging equipment and the like are widely applied in various places of society, and the cabinets are in a high-temperature state in normal operation, so that the possibility of fire disasters is greatly increased; aiming at the prior art of the cabinet, a fire detection pipe type fire extinguishing system is adopted to detect fire and automatically extinguish fire.
Referring to fig. 1 and 2, schematic diagrams of a direct fire-detecting tube fire-extinguishing system and an indirect fire-detecting tube fire-extinguishing system in the prior art are shown, wherein the two fire-detecting tube fire-extinguishing systems mainly comprise a fire-extinguishing agent bottle group and a fire-detecting tube 7 connected with the fire-extinguishing agent bottle group; the fire detecting tube 7 is wound and fixed near electrical equipment in the cabinet, the fire detecting tube 7 is led out of the cabinet body of the cabinet, a one-way valve 9 and a pressure switch 8 for monitoring the pressure of nitrogen in the fire detecting tube 7 are arranged at the tail end of the fire detecting tube, and the nitrogen with certain pressure is filled in the fire detecting tube 7 in the system under normal conditions; the fire extinguishing agent bottle group is including storing fire extinguishing agent 1's fire extinguishing agent steel bottle 2, clamp 3, container valve 4 or 4' and manometer 5, and the fire extinguishing agent bottle group is fixed in the rack cabinet body 6 outside. In addition, the indirect type fire detection pipe type fire extinguishing system further includes a fire extinguishing agent releasing pipe 10 and a spray head 18 which are drawn out by the container valve 4'.
In the above system, the fire exploring tube 7 is a plastic hose, and when any part in the cabinet catches fire and the temperature of the fire exploring tube close to the fire part reaches 150 ± 10 ℃, the fire exploring tube is burnt to release the nitrogen gas under the pressure therein, and at the same time, the pressure of the container valve 4 or 4 'is unbalanced, and the fire extinguishing agent is sequentially supplied to the steel cylinder 2, the container valve 4 or 4'; then released (direct type) into the cabinet through the broken openings of the fire detecting tube 7 and the fire detecting tube 7 to carry out total flooding fire extinguishing, or released (indirect type) into the cabinet through the fire extinguishing agent releasing tube 10 and the spray head 18 to carry out total flooding fire extinguishing.
The cabinet is provided with the fire detecting tube fire extinguishing device in the prior art, and the following problems exist: 1. the fire detecting tube has low fire extinguishing efficiency because the fire detecting tube needs a certain time lag when being burnt by big fire; 2. pressure nitrogen is released at the moment of burning of the fire detecting tube, impact force is generated on electronic components in the cabinet, and the electronic components are damaged, so that certain economic loss is caused.
Disclosure of Invention
In order to solve the problem that the pressure of released nitrogen gas is high at the moment of fire detection tube rupture in the prior art, which causes damage to electronic elements in a cabinet, the invention provides an automatic fire extinguishing system capable of releasing a fire extinguishing agent gently and cleanly with low pressure, which comprises a fire extinguishing control unit, a high-pressure nitrogen gas starting bottle group unit, a nitrogen gas driving pipeline, a liquid fire extinguishing agent box unit, a liquid fire extinguishing agent conveying pipeline, a spray head and a pressure feedback signal device, wherein the pressure feedback signal device is arranged on the nitrogen gas driving pipeline, the liquid fire extinguishing agent box unit comprises a liquid fire extinguishing agent box body, an air inlet conversion joint with a driving side port blasting diaphragm, a liquid injection port and a plug thereof, and a liquid outlet conversion joint with an output side port blasting diaphragm, which are arranged on the liquid fire extinguishing agent box body; the liquid fire extinguishing agent box body consists of an open cuboid shell and a cover plate welded together with the open cuboid shell; the air inlet adapter is arranged at the left end of the liquid fire extinguishing agent box body, and the liquid outlet adapter is arranged at the right end of the liquid fire extinguishing agent box body; at least one group is arranged in the liquid fire extinguishing agent box body between the air inlet adapter and the liquid outlet adapter in the transverse direction: a vertical baffle plate with a strip-shaped air guide hole at the lower part, or/and an acute-angle inclined plane air guide plate frame is arranged on the bottom surface of the baffle plate along the outflow direction of the liquid fire extinguishing agent.
Preferably, in order to ensure a lower pressure and more gradual release of the fire extinguishing agent during automatic fire extinguishing, the burst pressure of the driving side port burst membrane is 0.6MPa to 0.8MPa, and the burst pressure of the output side port burst membrane is 0.6MPa to 0.8MPa.
Preferably, in order to ensure that the fire extinguishing agent is released more smoothly to extinguish the fire, the air inlet adapter is arranged in the middle of the left side of the left end face of the liquid fire extinguishing agent box body; the liquid outlet adapter is arranged at the lower right corner of the front end face of the liquid fire extinguishing agent box body, and the liquid injection port is arranged at the left end part of the upper end face of the liquid fire extinguishing agent box body and staggered with the air inlet adapter.
Preferably, in order to ensure that drive nitrogen gas gets into liquid fire extinguishing agent box gently, reduce the impact to the liquid fire extinguishing agent in the liquid fire extinguishing agent box, extrude the liquid fire extinguishing agent in the liquid fire extinguishing agent box cleanly, this internal intake pipe, T type suction nozzle and its fretwork form fixed bolster of welding on liquid fire extinguishing agent box body bottom surface of still establishing of liquid fire extinguishing agent box, wherein intake pipe one end and the crossover sub intercommunication that admits air, its other end penetrates from the fixed bolster lateral wall, and with fix the T type suction nozzle intercommunication between fixed bolster and the internal top surface of liquid fire extinguishing agent box.
Preferably, in order to monitor the storage amount of the liquid extinguishing agent in the liquid extinguishing agent box under normal conditions, once the storage amount is lower than a warning liquid level, the liquid extinguishing agent box unit can alarm and remind in time, the liquid extinguishing agent box unit further comprises a female spring liquid level meter and a base welded on the inner bottom surface of the liquid extinguishing agent box body, wherein one end of the female spring liquid level meter is arranged at the upper right part of the upper end surface of the liquid extinguishing agent box body, and the other end of the female spring liquid level meter is fixed on the base.
Preferably, the liquid fire extinguishing agent is a perfluorohexanone fire extinguishing agent, a heptafluoropropane fire extinguishing agent, a foam fire extinguishing agent, or an aqueous film forming fire extinguishing agent.
Preferably, considering the factors that the high-pressure nitrogen starting cylinder group unit impacts the liquid extinguishing agent box when driving the liquid extinguishing agent in the liquid extinguishing agent box to extinguish fire, releases the liquid extinguishing agent in the liquid extinguishing agent box relatively gently and the like, the working pressure of the liquid extinguishing agent box is 2.5 MPa-5 MPa.
Compared with the prior art, when fire disaster occurs in a fire-fighting area (such as an underground oil depot, a cabinet and other closed areas) of the automatic fire-extinguishing system for extinguishing fire, the liquid fire-extinguishing agent in the liquid fire-extinguishing agent box body can be released smoothly and cleanly under the drive of nitrogen, so that the large pressure impact on electrical components in the fire-fighting area is greatly reduced, and the electrical components in the fire-fighting area are prevented from being damaged secondarily.
In order to solve the problems of large pressure of released nitrogen gas at the moment of burning of a fire detecting tube in a closed fireproof area, damage of electric or electronic elements in the closed fireproof area and fire detection lag of the fire detecting tube in the prior art, the invention provides an air-breathing detection automatic fire extinguishing device which has quick response of fire detection and low pressure and can release a fire extinguishing agent smoothly and cleanly, and the air-breathing detection automatic fire extinguishing device comprises an air-breathing detector unit and a linkage control automatic fire extinguishing system thereof, wherein the automatic fire extinguishing system comprises a fire extinguishing control unit, a high-pressure nitrogen starting bottle group unit, a nitrogen driving pipeline, a liquid fire extinguishing agent box unit, a liquid fire extinguishing agent conveying pipeline, a spray head and a pressure feedback signal device, the pressure feedback signal device is arranged on the nitrogen driving pipeline, and the liquid fire extinguishing agent box unit comprises a liquid fire extinguishing agent box body, an air inlet conversion joint with a driving side port blasting diaphragm, a liquid injection port and a plug thereof, and a liquid outlet conversion joint with an output side port blasting diaphragm; the liquid fire extinguishing agent box body consists of an open cuboid shell and a cover plate welded together with the open cuboid shell; the air inlet adapter is arranged at the left end of the liquid fire extinguishing agent box body, and the liquid outlet adapter is arranged at the right end of the liquid fire extinguishing agent box body; at least one group is transversely arranged in the liquid fire extinguishing agent box body between the air inlet conversion head and the liquid outlet conversion head: a vertical baffle plate with a strip-shaped air guide hole at the lower part, or/and an acute-angle inclined plane air guide plate frame is arranged on the bottom surface of the baffle plate along the outflow direction of the liquid fire extinguishing agent.
Preferably, the aspirated detector units are of the smoke or/and gas or/and temperature type, for very early fire detection and suppression of fire in a bud.
Preferably, in order to ensure that the pressure is lower and the fire extinguishing agent is more smoothly released when the air suction type detection automatic fire extinguishing device extinguishes fire when a fire breaks out, the bursting pressure of the driving side port bursting disc is 0.6 to 0.8MPa, and the bursting pressure of the output side port bursting disc is 0.6 to 0.8MPa.
Preferentially, in order to ensure that the fire extinguishing agent is released more smoothly from the liquid fire extinguishing agent box body to extinguish a fire when a fire disaster happens, the air inlet pipe adapter is arranged in the middle of the left side of the left end face of the liquid fire extinguishing agent box body; the liquid outlet adapter is arranged at the lower right corner of the front end face of the liquid extinguishing agent box body, and the liquid injection port is arranged at the left end part of the upper end face of the liquid extinguishing agent box body and staggered with the air inlet adapter.
Preferentially, drive nitrogen gas gently gets into in the liquid fire extinguishing agent box when ensureing that the conflagration takes place, reduces the impact to the liquid fire extinguishing agent in the liquid fire extinguishing agent box, cleanly extrudes the liquid fire extinguishing agent in the liquid fire extinguishing agent box, this internal intake pipe, T type suction nozzle and its fretwork form fixed bolster of welding on liquid fire extinguishing agent box body bottom surface of still establishing of liquid fire extinguishing agent box, wherein intake pipe one end and the crossover sub intercommunication that admits air, its other end penetrates from the fixed bolster lateral wall, and with fix the T type suction nozzle intercommunication between the internal top surface of fixed bolster and liquid fire extinguishing agent box.
Preferentially, how much liquid extinguishing agent is stored in order to keep watch on liquid extinguishing agent box under normal conditions, in case in time report to the police and remind when being less than the warning liquid level, liquid extinguishing agent box unit still includes female spring level gauge and the welding base on the bottom surface in the liquid extinguishing agent box body, its female spring level gauge one end is established at the upper right position of liquid extinguishing agent box body up end, and the other end is fixed on the base.
Preferably, the liquid fire extinguishing agent is a perfluorohexanone fire extinguishing agent, a heptafluoropropane fire extinguishing agent, a foam fire extinguishing agent, or an aqueous film forming fire extinguishing agent.
Preferentially, considering the factors that the high-pressure nitrogen starting cylinder group unit impacts the liquid fire extinguishing agent box when driving the fire extinguishing agent in the liquid fire extinguishing agent box to extinguish fire, releases the liquid fire extinguishing agent in the liquid fire extinguishing agent box relatively gently and the like, the working pressure of the liquid fire extinguishing agent box is 2.5 MPa-5 MPa.
Compared with the prior art, the invention has the following advantages:
1. the air suction type detector unit can detect fire in a closed fire-proof area (such as an underground oil depot, a cabinet and other closed areas) at an extremely early stage.
2. When a fire disaster occurs in a closed fire-fighting area (such as closed areas of an underground oil depot, a cabinet and the like) of the automatic fire extinguishing system for extinguishing fire, the liquid fire extinguishing agent in the liquid fire extinguishing agent box body can be released smoothly and cleanly under the driving of nitrogen, so that the large pressure impact on electrical components in the closed fire-fighting area is greatly reduced, and the electrical or electronic components in the closed fire-fighting area are prevented from being damaged secondarily.
In order to solve the problems of large pressure of released nitrogen at the moment of the fire detection tube of the cabinet in the prior art, which causes the damage of electronic elements in the cabinet and the delay of fire detection of the fire detection tube, the invention provides an embedded air suction type detection automatic fire extinguishing disc which has quick response of fire detection and low pressure and can smoothly and cleanly release fire extinguishing agents, comprising an embedded box body, a high-pressure nitrogen starting bottle group unit, a nitrogen driving pipeline, a liquid fire extinguishing agent box unit with pressure reduction and gradual release of the fire extinguishing agents, a liquid fire extinguishing agent conveying pipeline, a pressure feedback signal device, a fire extinguishing control unit, a fire alarm main machine for detecting smoke or/and gas or/and temperature of sampled gas in a fire prevention area, a gas suction sampling pipeline, a direct current power supply unit, a storage battery unit, a system monitoring signal indicating unit, a display panel, a spray head unit, a system resetting and emergency stopping operation unit, a gas suction sampling pipeline sampling port, a system power supply, a system signal output unit, a system communication interface unit and a gas outlet arranged on the front end face of the embedded box body, wherein the sampling port of the embedded box body is provided with the gas suction sampling pipeline sampling port corresponding to the gas alarm main machine; the embedded type box body is a flat cuboid shell, a high-pressure nitrogen starting bottle group unit is transversely installed at the longitudinal middle part in the embedded type box body, the liquid fire extinguishing agent box unit is transversely installed at the rear side of the high-pressure nitrogen starting bottle group unit in the box body, and a storage battery unit, a direct-current power supply unit, a fire alarm host and a fire extinguishing control unit are sequentially installed at the front side in the embedded type box body from left to right; the nitrogen gas drive pipeline is communicated with the high-pressure nitrogen gas starting cylinder group unit and the liquid fire extinguishing agent box unit, the pressure feedback signal device is arranged on the nitrogen gas drive pipeline, and the liquid fire extinguishing agent conveying pipeline is communicated with the liquid fire extinguishing agent box unit and the display panel and the spray heads of the spray head unit.
Preferentially, in order to ensure that the pressure is lower and the fire extinguishing agent is released more smoothly and cleanly when the cabinet is subjected to extremely early fire detection and automatic fire extinguishing, the liquid fire extinguishing agent box unit comprises a liquid fire extinguishing agent box body, an air inlet conversion joint with a driving side port blasting diaphragm, a liquid injection port and a plug thereof, and a liquid outlet right-angle conversion joint with an output side port blasting diaphragm, wherein the air inlet conversion joint, the liquid injection port and the plug are arranged on the liquid fire extinguishing agent box body; the liquid extinguishing agent box body consists of an open cuboid shell and a cover plate welded with the open cuboid shell; the air inlet adapter is arranged at the left end of the liquid fire extinguishing agent box body, and the liquid outlet right-angle adapter is arranged at the right end of the liquid fire extinguishing agent box body; at least one group is transversely arranged in the liquid fire extinguishing agent box body between the air inlet conversion joint and the liquid outlet right-angle conversion joint: a vertical baffle plate with a strip-shaped air guide hole at the lower part, or/and an acute-angle inclined plane air guide plate frame is arranged on the bottom surface of the baffle plate along the outflow direction of the liquid fire extinguishing agent.
Preferably, in order to ensure that the pressure is lower and the fire extinguishing agent is released more smoothly when the cabinet is subjected to extremely early fire detection and automatic fire extinguishing, the bursting pressure of the driving side port bursting diaphragm is 0.6MPa to 0.8MPa, and the bursting pressure of the output side port bursting diaphragm is 0.6MPa to 0.8MPa.
Preferentially, in order to ensure that the pressure is lower and the fire extinguishing agent is released more smoothly and cleanly when the cabinet is subjected to extremely early fire detection and automatic fire extinguishing, the air inlet adapter is arranged in the middle of the left side of the left end face of the liquid fire extinguishing agent box body; the liquid outlet right angle crossover sub establishes the lower right corner position at the preceding terminal surface of liquid fire extinguishing agent box body, annotate the liquid mouth and establish the left end portion at liquid fire extinguishing agent box body up end, and stagger with the crossover sub that admits air.
Preferentially, drive nitrogen gas gently gets into in the liquid fire extinguishing agent box when just putting out a fire in order to ensure to the extremely early fire detection of rack, reduces the impact to the liquid fire extinguishing agent in the liquid fire extinguishing agent box, extrudes out the liquid fire extinguishing agent in the liquid fire extinguishing agent box cleanly, this internal intake pipe, T type suction nozzle and its welding fretwork form fixed bolster on liquid fire extinguishing agent box body bottom surface of still establishing of liquid fire extinguishing agent box, wherein intake pipe one end and the crossover sub intercommunication that admits air, its other end penetrate from the fixed bolster lateral wall, and with fix the T type suction nozzle intercommunication between fixed bolster and the internal top surface of liquid fire extinguishing agent box.
Preferentially, how much liquid extinguishing agent is stored in order to monitor the liquid extinguishing agent box under normal conditions, in case in time report to the police and remind when being less than the warning liquid level, liquid extinguishing agent box unit still includes female spring level gauge and welds the base on liquid extinguishing agent box body inner bottom surface, wherein female spring level gauge one end is established at the upper right position of liquid extinguishing agent box body up end, and the other end is fixed on the base.
Preferably, the liquid fire extinguishing agent is a perfluorohexanone fire extinguishing agent, a heptafluoropropane fire extinguishing agent, a foam fire extinguishing agent, or an aqueous film forming fire extinguishing agent.
Preferentially, considering the factors that the high-pressure nitrogen starting cylinder group unit impacts the liquid fire extinguishing agent box when driving the fire extinguishing agent in the liquid fire extinguishing agent box to extinguish fire, releases the liquid fire extinguishing agent in the liquid fire extinguishing agent box relatively gently and the like, the working pressure of the liquid fire extinguishing agent box is 2.5 MPa-5 MPa.
Compared with the prior art, the invention has the following advantages:
1. the air-breathing fire detection system utilizing the embedded air-breathing detection automatic fire extinguishing plate can detect the fire in the cabinet very early in the initial stage.
2. When a fire disaster occurs in the cabinet adopting the embedded air suction type detection automatic fire extinguishing disc for fire extinguishing, the liquid fire extinguishing agent in the liquid fire extinguishing agent box body can be released smoothly and cleanly under the drive of nitrogen, so that the large pressure impact on components in the cabinet is greatly reduced, and the components in the cabinet are prevented from being damaged secondarily.
3. The embedded air suction type detection automatic fire extinguishing plate can be conveniently installed in a cabinet, and can be flexibly configured according to the size of the cabinet.
Drawings
FIG. 1 is a schematic diagram of a direct fire detection tube fire suppression system;
FIG. 2 is a schematic diagram of an indirect fire detection tube fire suppression system;
FIG. 3 is a schematic diagram of an automatic fire suppression system according to the present invention;
FIG. 4 is a schematic view of the liquid fire suppressant tank unit of FIG. 3;
FIG. 5 is a cross-sectional view of the liquid fire suppressant tank unit of FIG. 4 taken along the outside;
FIG. 6 is a longitudinal cross-sectional view of the right side of the liquid fire-extinguishing agent tank unit of FIG. 4;
FIG. 7 is a schematic diagram of the high pressure nitrogen start-up cylinder set unit of FIG. 3;
FIG. 8 is a schematic structural view of an automatic fire extinguishing apparatus with air-breathing detection according to a second embodiment of the present invention;
FIG. 9 is a schematic view of an internal structure of an embedded suction type detection automatic fire extinguishing plate opening cover according to a third embodiment of the present invention;
FIG. 9a is a schematic view of the left end of the suction type detection automatic fire extinguishing plate in FIG. 9;
fig. 9b is a schematic view of the right end of the suction type detection automatic fire extinguishing plate of fig. 9.
Detailed Description
The following detailed description of an automatic fire extinguishing system, an air-breathing detection automatic fire extinguishing device and an embedded air-breathing detection automatic fire extinguishing plate according to the present invention will be made with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 3, 4, 5 and 6, the principle schematic diagram of an automatic fire extinguishing system provided by the present invention includes a fire extinguishing control unit 13, a high-pressure nitrogen starting cylinder group unit 14, a nitrogen driving pipeline 15, a liquid fire extinguishing agent tank unit 16, a liquid fire extinguishing agent delivery pipeline 17, a spray head 18 and a pressure feedback signal device, wherein the pressure feedback signal device is arranged on the nitrogen driving pipeline.
As shown in fig. 7, which is a schematic structural diagram of a high-pressure nitrogen start cylinder group unit, the high-pressure nitrogen start cylinder group unit 14 includes an electromagnetically driven valve 14-1, a container valve 14-3, a pressure sensor 14-2, and a cylinder 14-4 for storing nitrogen.
The liquid fire extinguishing agent box unit 16 comprises a liquid fire extinguishing agent box body, an air inlet adapter 16-1 with a driving side port blasting diaphragm 16-6, a liquid injection port and a plug 16-4 thereof and a liquid outlet adapter 16-5 with an output side port blasting diaphragm 16-10, wherein the air inlet adapter 16-1, the liquid injection port and the plug 16-4 are arranged on the liquid fire extinguishing agent box body; the liquid fire extinguishing agent box body consists of an open cuboid shell 16-2 and a cover plate 16-3 welded together with the open cuboid shell; two groups are arranged in the body of the liquid extinguishing agent box body in sequence along the transverse direction: a vertical clapboard with a strip-shaped air guide hole at the lower part and an acute-angle inclined air guide plate frame 16-9 which is arranged on the inner bottom surface of the liquid fire extinguishing agent box body behind the vertical clapboard and along the outflow direction of the liquid fire extinguishing agent; of course, in this embodiment, the liquid fire extinguishing agent box body may be internally and transversely provided with at least one group: a vertical clapboard with a strip-shaped air guide hole at the lower part and an air guide plate frame 16-9 with an acute angle inclined plane which is arranged on the inner bottom surface of the liquid extinguishing agent box body behind the vertical clapboard and is along the flowing direction of the liquid extinguishing agent; as long as the pressure and the time for releasing the fire extinguishing agent during fire extinguishing meet the fire extinguishing requirement of a fire-extinguishing area and the electrical equipment in the fire-extinguishing area cannot be impacted and damaged, for example, a vertical partition plate with a strip-shaped air guide hole at the lower part and an acute-angle inclined air guide plate frame 16-9 arranged on the inner bottom surface of the liquid fire extinguishing agent box body behind the vertical partition plate are transversely and sequentially arranged in the liquid fire extinguishing agent box body, and also two acute-angle inclined air guide plate frames 16-9 arranged on the inner bottom surface of the liquid fire extinguishing agent box body at intervals in sequence and along the outflow direction of the liquid fire extinguishing agent are arranged; also can be successively arranged on the bottom surface in the liquid extinguishing agent box body at intervals: a vertical clapboard with a strip-shaped air guide hole at the lower part and a vertical clapboard with a strip-shaped air guide hole at the upper part in the transverse direction; or at least one acute-angle inclined plane air guide plate frame 16-9 can be arranged on the inner bottom surface of the liquid fire extinguishing agent box body along the outflow direction of the liquid fire extinguishing agent; or at least one vertical partition plate with a strip-shaped air guide hole at the lower part can be arranged on the inner bottom surface of the liquid extinguishing agent box body. In order to ensure that the pressure is low and the fire extinguishing agent is slowly released during automatic fire extinguishing, the bursting pressure of the driving side port bursting disc is 0.6-0.8 MPa, and the bursting pressure of the output side port bursting disc is 0.6-0.8 MPa.
In order to ensure that the fire extinguishing agent is released more smoothly and cleanly to extinguish the fire, the air inlet adapter 16-1 is arranged in the middle of the left side of the left end face of the liquid fire extinguishing agent box body; the liquid outlet adapter 16-5 is arranged at the right lower corner of the front end face of the liquid fire extinguishing agent box body, and the liquid injection port is arranged at the left end part of the upper end face of the liquid fire extinguishing agent box body and is staggered with the air inlet adapter 16-1.
In order to ensure that driving nitrogen gas smoothly enters the liquid fire extinguishing agent box body, reduce impact on the liquid fire extinguishing agent in the liquid fire extinguishing agent box body and cleanly extrude the liquid fire extinguishing agent in the liquid fire extinguishing agent box body, an air inlet pipe 16-7, a T-shaped air inlet nozzle and a hollowed-out fixing support 16-8 welded on the bottom surface of the liquid fire extinguishing agent box body are further arranged in the liquid fire extinguishing agent box body, wherein one end of the air inlet pipe 16-7 is communicated with an air inlet conversion joint 16-6, the other end of the air inlet pipe penetrates through the side wall of the fixing support 16-8 and is communicated with the T-shaped air inlet nozzle fixed between the fixing support and the inner top surface of the liquid fire extinguishing agent box body (the top surface of the T-shaped air inlet nozzle is pressed against the inner top surface of the liquid fire extinguishing agent box body, and a plurality of grooves are formed in the periphery of the top surface of the T-shaped air inlet nozzle along the radial direction, and the purpose of reducing nitrogen gas pressure and enabling the liquid fire extinguishing agent to be thoroughly and cleanly extruded and discharged from one side of the inner top surface of the box body through nitrogen gas). The fixed support 16-8 is a hollow-out fixed support, and the upper end and the lower end of the fixed support are provided with arched holes with mutually perpendicular axes.
In order to monitor how much the liquid extinguishing agent is stored in the liquid extinguishing agent box under normal conditions, in case of timely warning and reminding when being lower than the warning liquid level, the liquid extinguishing agent box unit further comprises a female spring liquid level meter 26 and a base welded on the inner bottom surface of the liquid extinguishing agent box body, wherein one end of the female spring liquid level meter is arranged at the upper right part of the upper end surface of the liquid extinguishing agent box body, and the other end of the female spring liquid level meter is fixed on the base.
In the embodiment, the liquid fire extinguishing agent is a perfluorohexanone fire extinguishing agent, a heptafluoropropane fire extinguishing agent, a foam fire extinguishing agent, a water film forming fire extinguishing agent or the like.
In this embodiment, considering that the high-pressure nitrogen gas starts the bottle group unit to drive the liquid fire extinguishing agent in the liquid fire extinguishing agent box to cause impact on the liquid fire extinguishing agent box when extinguishing fire, and releases the liquid fire extinguishing agent in the liquid fire extinguishing agent box more gently, the working pressure of the liquid fire extinguishing agent box is agreed between 2.5MPa and 5MPa.
Example two:
in the embodiment, a gas-suction type detector unit 12 is mainly added on the basis of the first embodiment, and the gas-suction type detector unit 12 comprises a fire alarm main machine for sucking gas in a fire-proof area to detect smoke or/and gas or/and temperature and a gas suction sampling pipeline thereof. The air suction type detector is used for detecting 2 detector combinations, and can be used for detecting smoke by 2 detectors, the 1 st detector detects low smoke and haze (OBS is less than or equal to 0.8), once smoke particles are detected, the system gives out an alarm in advance, and once the 2 nd detector detects high-concentration smoke particles (OBS value is 0.8-2), the system starts to extinguish fire; 2 detectors can be used for smoke detection and combustible gas detection, and a pre-alarm can be carried out once one detector detects a signal; the 2 detectors can be smoke detection and temperature detection, the temperature can be set with alarm threshold values (68 ℃, 86 ℃, 93 ℃ and 105 ℃) according to the actual field, the smoke detector can be set with alarm threshold values (OBS is less than or equal to 0.8, 0.8-2 and more than or equal to 2) according to the actual field, one detector obtains signals to pre-alarm, and the other detector obtains signals to start the fire extinguishing system.
As shown in fig. 8, the structural schematic diagram of the air-suction detection automatic fire extinguishing device provided by the present invention includes an air-suction detector unit 12, an automatic fire extinguishing system under linkage control thereof, a dc power supply unit, and a storage battery unit, wherein the automatic fire extinguishing system includes a fire extinguishing control unit 13, a high-pressure nitrogen start-up cylinder group unit 14, a nitrogen driving pipeline 15, a liquid fire extinguishing agent tank unit 16, a liquid fire extinguishing agent delivery pipeline 17, a spray head 18, and a pressure feedback signal device, and the pressure feedback signal device is disposed on the nitrogen driving pipeline.
In order to solve the problems of the prior art that the pressure of nitrogen released instantly when the fire detecting tube is burned is large, which causes the damage of electronic components in a closed fire-proof area (such as a cabinet), and the delay of fire detection by the fire detecting tube, the embodiment provides an air-breathing type detection automatic fire extinguishing device which has the advantages of fast response of fire detection, low pressure, and smooth and clean release of liquid fire extinguishing agent.
The working principle is as follows:
the air-breathing detector unit 12 monitors and detects whether a fire disaster occurs in a closed fireproof area (such as a cabinet) in real time through a gas suction sampling pipeline, when the fire disaster occurs in the monitored area, a fire alarm signal is transmitted to the fire extinguishing control unit 13, the fire extinguishing control unit 13 outputs a signal, the electromagnetic driving valve of the high-pressure nitrogen starting cylinder group unit 14 is powered on to open the container valve, the high-pressure nitrogen enters the liquid fire extinguishing agent box unit 16 through the nitrogen driving pipeline 15, the high-pressure nitrogen breaks through the driving side port blasting diaphragm, the high-pressure nitrogen enters the liquid fire extinguishing agent box body and simultaneously breaks through the output port side blasting diaphragm, the liquid fire extinguishing agent is stored in the liquid fire extinguishing agent box body, and the liquid fire extinguishing agent is sprayed through the liquid fire extinguishing agent conveying pipeline 17 to the spray nozzle 18 under the driving of the high-pressure nitrogen to carry out the full-flooding fire extinguishing in the closed fireproof area.
Of course, the suction type detection automatic fire extinguishing device provided by the embodiment can also be applied to the places with non-closed fire-protection areas.
Example three:
in order to solve the problems that the cabinet fire detecting tube in the prior art is burnt out and releases nitrogen gas pressure instantly to cause damage of electronic components in the cabinet and the fire detecting tube detects fire lag, the embodiment provides an embedded air suction type automatic fire detection fire extinguishing disc which has fast response of fire detection and low pressure and releases fire extinguishing agents gently and cleanly. The technical scheme of the automatic fire extinguishing disc is designed into a specific embedded air-breathing detection automatic fire extinguishing disc on the basis of the second embodiment, and the automatic fire extinguishing disc comprises an air-breathing detector unit, an automatic fire extinguishing system controlled by the air-breathing detector unit in a linkage mode, a direct-current power supply unit and a storage battery unit; the air suction type detector unit comprises a fire alarm main machine 12-1 and an air suction sampling pipeline 12-2, wherein the fire alarm main machine is used for sucking air in a fire prevention area to detect smoke or/and air or/and temperature.
As shown in fig. 9, an embedded air suction type detection automatic fire extinguishing plate opening internal structure schematic diagram is provided, the automatic fire extinguishing plate includes an embedded box body 20 and a high pressure nitrogen gas starting bottle group unit 14, a nitrogen gas driving pipeline, a liquid fire extinguishing agent box unit 16, a fire extinguishing control unit 13, a fire alarm main machine 12-1 and a gas suction sampling pipeline 12-2, a liquid fire extinguishing agent conveying pipeline, a pressure feedback signal device 21, a direct current power supply unit 29 and a storage battery unit 30, a system monitoring signal indicating unit, a display panel and a nozzle unit, a system resetting and emergency stopping operation unit are sequentially arranged on the left end face of the embedded box body from left to right, a gas suction sampling pipeline sampling port 12-3, a system power supply socket 32, a system signal output unit, a system communication interface unit and a gas discharge port corresponding to the fire alarm main machine 12-1 are sequentially arranged on the right end face of the embedded box body from left to right, and a gas discharge port corresponding to the fire alarm main machine 12-1 is arranged on the front end face of the embedded box body; the gas suction sampling pipeline is connected to a sampling port 12-3 of the gas suction sampling pipeline (the sampling port 12-3 can be externally connected with a winding sampling pipeline arranged in the cabinet). The embedded type box body is a flat cuboid shell, a high-pressure nitrogen starting bottle group unit is transversely installed in the longitudinal middle of the embedded type box body, the liquid fire extinguishing agent box unit is transversely installed on the rear side of the high-pressure nitrogen starting bottle group unit in the embedded type box body, and a storage battery unit, a direct-current power supply unit, a fire alarm host 12-1 and a fire extinguishing control unit are sequentially installed on the front side in the embedded type box body from left to right.
And the fire extinguishing control unit 13 is used for receiving a fire alarm signal output by the fire alarm host and then powering up the high-pressure nitrogen starting cylinder group unit 14 to electromagnetically drive the valve 14-1 so as to open the container valve 14-3 and release nitrogen. The direct current power supply unit is used for supplying direct current power to the fire extinguishing control unit, the fire alarm main machine 12-1 and the storage battery unit. The storage battery unit is an emergency standby power supply.
System monitoring signal indicating unit includes fire alarm flashing light 33, system power indicator, extinguishing agent blow-up pilot lamp, fire alarm pilot lamp and the stop indicator that puts out a fire etc, display panel and shower nozzle unit include liquid crystal display panel 34 and operating key, and liquid extinguishing agent shower nozzle 18 ″, system resets and promptly stops the operating unit and includes system reset button and urgent stop button.
The system signal output unit comprises a fire alarm signal output port and a spraying signal output port, and the system communication interface unit comprises a system communication R485 interface and a LINK interface.
As shown in fig. 3, 4 and 9, the container valve is connected with the gas inlet adapter through a nitrogen driving pipeline and a tee 22, and the third side of the tee is provided with a pressure feedback signal device 21; said outlet port adapter (which is right-angled for space saving purposes in the fire tray) is connected to said liquid fire-extinguishing agent nozzle 18' via a liquid fire-extinguishing agent conveying line 17; the fire alarm host 12-1 is electrically connected with the fire extinguishing control unit and outputs a fire alarm signal and a fault signal; the fire extinguishing control unit is electrically connected with the high-pressure nitrogen starting cylinder group unit and controls the electromagnetic driving valve; the fire extinguishing control unit is electrically connected with the pressure feedback signal device 21 and monitors the pressure of the air inlet of the liquid fire extinguishing agent box unit.
The fire extinguishing control unit outputs fire extinguishing agent spraying signals and fire extinguishing stopping signals, and is respectively electrically connected with the fire extinguishing agent spraying indicator lamp and the fire extinguishing stopping indicator lamp in the system monitoring signal indicating unit, and the fire alarm main machine 12-1 outputs fire alarm signals and system power state signals, and is respectively electrically connected with the fire alarm flashing lamp 33, the system power indicator lamp and the fire alarm indicator lamp. The system reset button is respectively electrically connected with the fire extinguishing control unit and the fire alarm host, and the emergency stop button is electrically connected with the fire extinguishing control unit.
The fire alarm signal output port is electrically connected with the fire alarm host 12-1, the fire extinguishing control unit is electrically connected with the spraying signal output port, and the system communication R485 interface and the LINK interface are respectively electrically connected with the fire extinguishing control unit.
The working principle is as follows:
when the embedded air suction type detection automatic fire extinguishing disc is embedded in a cabinet and normally works, the fire alarm main machine 12-1 starts to uninterruptedly suck air in the cabinet to detect and judge smoke or/and gas or/and temperature in the air, once a fire disaster starts to happen in the cabinet, the fire alarm main machine 12-1 can quickly identify the smoke or/and gas or/and temperature parameters in the sucked air and determine whether the fire disaster happens or not; if the fire is confirmed to happen, a fire alarm signal is sent to the fire extinguishing control unit 13, and meanwhile, the fire alarm flashing light 33 is driven to act; after the fire extinguishing control unit 13 delays for a period of time (0-30 s), the solenoid-actuated valve 14-1 is started to open the container valve 14-3, high-pressure nitrogen flows to the air inlet adapter from the nitrogen steel cylinder 14-4, the container valve 14-3, the nitrogen drive pipeline and the tee 22, the drive side port blasting diaphragm is broken, and therefore the liquid fire extinguishing agent is fed into the liquid fire extinguishing agent box body to be stored in the box body and flow to the liquid outlet adapter, the output side port blasting diaphragm is broken, and then the fire extinguishing agent is released into the cabinet through the spray head 18' to perform full flooding fire extinguishing. Store liquid fire extinguishing agent from the in-process that liquid outlet crossover sub flows out in the crossover sub extrusion liquid fire extinguishing agent box by nitrogen gas, set up the vertical baffle and/or the air guide grillage of bar air guide hole is established to the lower part in the middle of the liquid fire extinguishing agent box body, make high-pressure nitrogen gas by T type suction nozzle to liquid outlet crossover sub entry after to before in this internal liquid fire extinguishing agent box: the liquid extinguishing agent is driven to flow out in a wave or curve mode, so that the efficiency of the liquid extinguishing agent extruded by nitrogen is greatly improved, and the spraying pressure of the liquid extinguishing agent is reduced.
Although the above embodiment is an example of a closed fireproof area, the invention is described, but it should be understood that the invention is characterized in that: the top surface of the T-shaped air inlet nozzle is supported on the inner top surface of the liquid fire extinguishing agent box body, 2) a vertical partition plate with a strip-shaped air guide hole at the lower part is transversely arranged in the liquid fire extinguishing agent box body, 3) an acute-angle inclined air guide plate frame is arranged on the transverse bottom surface in the liquid fire extinguishing agent box body and along the outflow direction of the liquid fire extinguishing agent, and 4) the T-shaped air inlet nozzle and an inlet of a liquid outlet conversion joint are staggered up and down and left and right in the liquid fire extinguishing agent box body; the function is as follows: the high-pressure nitrogen is from the front to the back in the liquid extinguishing agent box body by T type suction nozzle to liquid outlet crossover sub entry: driving the liquid extinguishing agent to flow out for extinguishing fire in a wave or curve mode; the effect is as follows: slowing down the impact of the high-pressure nitrogen on electrical equipment elements in the fireproof area; those skilled in the art can make variations or modifications of the present invention without departing from the spirit and scope of the above-mentioned invention, but all of them should fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The air-breathing detection automatic fire extinguishing device is characterized by comprising an air-breathing detector unit and an automatic fire extinguishing system which is controlled by the air-breathing detector unit in a linkage manner, wherein the automatic fire extinguishing system comprises a fire extinguishing control unit, a high-pressure nitrogen starting cylinder group unit, a nitrogen driving pipeline, a liquid fire extinguishing agent box unit, a liquid fire extinguishing agent conveying pipeline, a spray head and a pressure feedback signal device, the pressure feedback signal device is arranged on the nitrogen driving pipeline, and the liquid fire extinguishing agent box unit comprises a liquid fire extinguishing agent box body, an air inlet adapter joint with a driving side port blasting diaphragm, a liquid injection port, a plug of the liquid injection port and a liquid outlet adapter joint with an output side port blasting diaphragm, which are arranged on the liquid fire extinguishing agent box body; the liquid fire extinguishing agent box body consists of an open cuboid shell and a cover plate welded together with the open cuboid shell; the air inlet adapter is arranged at the left end of the liquid fire extinguishing agent box body, and the liquid outlet adapter is arranged at the right end of the liquid fire extinguishing agent box body; at least one group is transversely arranged in the liquid fire extinguishing agent box body between the air inlet conversion head and the liquid outlet conversion head: a vertical baffle plate with a strip-shaped air guide hole at the lower part, or/and an acute-angle inclined plane air guide plate frame is arranged on the bottom surface of the baffle plate along the outflow direction of the liquid fire extinguishing agent.
2. The aspiration type detection automatic fire extinguishing apparatus according to claim 1, wherein the aspiration type detector unit is an aspiration type detector unit of smoke or/and gas or/and temperature type.
3. The air-breathing detection automatic fire extinguishing device according to claim 2, wherein the burst pressure of the driving side port burst disk is 0.6MPa to 0.8MPa, and the burst pressure of the output side port burst disk is 0.6MPa to 0.8MPa.
4. The air suction type detection automatic fire extinguishing device according to claim 1, 2 or 3, wherein the air inlet pipe adapter is arranged in the middle of the left side of the left end face of the liquid fire extinguishing agent box body; the liquid outlet adapter is arranged at the lower right corner of the front end face of the liquid extinguishing agent box body, and the liquid injection port is arranged at the left end part of the upper end face of the liquid extinguishing agent box body and staggered with the air inlet adapter.
5. The air-breathing type detection automatic fire extinguishing device according to claim 4, wherein an air inlet pipe, a T-shaped air inlet nozzle and a hollowed-out fixing support welded on the bottom surface of the liquid fire extinguishing agent box body are further arranged in the liquid fire extinguishing agent box body, wherein one end of the air inlet pipe is connected with the air inlet adapter, and the other end of the air inlet pipe penetrates through the side wall of the fixing support and is connected with the T-shaped air inlet nozzle fixed between the fixing support and the inner top surface of the liquid fire extinguishing agent box body.
6. The automatic fire extinguishing apparatus according to claim 5, wherein the liquid fire extinguishing agent tank unit further comprises a female spring level gauge and a base welded to the inner bottom surface of the liquid fire extinguishing agent tank body, wherein one end of the female spring level gauge is disposed at the upper right portion of the upper end surface of the liquid fire extinguishing agent tank body, and the other end is fixed to the base.
7. The aspirating detector automatic fire extinguisher according to claim 4, wherein said liquid fire extinguishing agent is a perfluorohexanone fire extinguishing agent, a heptafluoropropane fire extinguishing agent, a foam fire extinguishing agent, or an aqueous film fire extinguishing agent.
8. A suction-type detection automatic fire extinguishing apparatus according to claim 5 or 6, wherein the liquid fire extinguishing agent is a perfluorohexanone fire extinguishing agent, a heptafluoropropane fire extinguishing agent, a foam fire extinguishing agent, or a water film fire extinguishing agent.
9. The air-breathing type detection automatic fire extinguishing device according to claim 7, wherein the working pressure of the liquid fire extinguishing agent box is 2.5MPa to 5MPa.
10. The automatic fire extinguishing apparatus according to claim 8, wherein the operating pressure of the liquid fire extinguishing agent tank is 2.5MPa to 5MPa.
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