CN115645782A - Automatic fire extinguishing system - Google Patents
Automatic fire extinguishing system Download PDFInfo
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- CN115645782A CN115645782A CN202211277371.5A CN202211277371A CN115645782A CN 115645782 A CN115645782 A CN 115645782A CN 202211277371 A CN202211277371 A CN 202211277371A CN 115645782 A CN115645782 A CN 115645782A
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- fire extinguishing
- extinguishing agent
- liquid
- box body
- fire
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- 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
- 239000007921 spray Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 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
- 238000007599 discharging Methods 0.000 claims 1
- 238000005422 blasting Methods 0.000 abstract description 14
- 238000001514 detection method Methods 0.000 description 41
- 239000007789 gas Substances 0.000 description 23
- 229910001873 dinitrogen Inorganic materials 0.000 description 21
- 238000005070 sampling Methods 0.000 description 14
- 239000000779 smoke Substances 0.000 description 13
- 230000009172 bursting Effects 0.000 description 12
- 238000003860 storage Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000005192 partition Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention provides an automatic fire extinguishing system which 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, wherein the high-pressure nitrogen starting bottle group unit is connected with the nitrogen driving pipeline; the liquid fire extinguishing agent box unit comprises a liquid fire extinguishing agent box body, an air inlet adapter provided with a driving side port blasting diaphragm and arranged on the liquid fire extinguishing agent box body, a liquid injection port, a plug of the liquid injection port and a liquid outlet adapter provided with an output side port blasting diaphragm; 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 conversion joint: a vertical baffle plate with a strip-shaped air guide hole at the lower part, or/and an air guide plate frame with an acute-angle inclined plane is arranged on the bottom surface of the baffle plate along the outflow direction of the liquid fire extinguishing agent. The pressure of the liquid fire extinguishing agent can be released to a fireproof area slowly and slowly through the automatic fire extinguishing system, so that the impact pressure on the electric components is reduced, and the secondary damage to the electric components is avoided.
Description
Technical Field
The invention belongs to the technical field of fire fighting, and particularly relates to an automatic fire extinguishing system.
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-detecting tube-type fire extinguishing system further includes a fire-extinguishing-agent-releasing tube 10 led out by the container valve 4' and a spray head 18.
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 detection 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 slowly and at low pressure, which comprises a fire extinguishing control unit, a high-pressure nitrogen gas starting cylinder 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 is extinguished in a fire-extinguishing area (such as an underground oil depot, a cabinet and other closed areas) of the automatic fire extinguishing system, the liquid fire extinguishing agent in the liquid fire extinguishing agent box body can be released smoothly and cleanly under low pressure under the driving of nitrogen, so that the large pressure impact on the electrical components in the fire-extinguishing area is greatly reduced, and the electrical components in the fire-extinguishing 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 slowly release a fire extinguishing agent, and the air-breathing detection automatic fire extinguishing device comprises an air-breathing detector unit and an automatic fire extinguishing system which is controlled in a linkage manner, 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 extinguishing agent box body, and the liquid outlet adapter is arranged at the right end of the liquid extinguishing agent box body; at least one group is arranged in the liquid fire extinguishing agent box body between the air inlet conversion head and the liquid outlet conversion head 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, the aspirating detector unit is of the smoke or/and gas or/and temperature type, in order to detect the fire very early and to prevent it from sprouting.
Preferably, in order to ensure that the pressure of the air suction type detection automatic fire extinguishing device is lower and the fire extinguishing agent is released more smoothly when the air suction type detection automatic fire extinguishing device extinguishes fire, 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.
Preferentially, in order to ensure that the fire extinguishing agent is released more smoothly from the liquid fire extinguishing agent box body for extinguishing 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, in order to monitor how much the liquid extinguishing agent is stored in the liquid extinguishing agent box under normal conditions, in case the liquid extinguishing agent is lower than the warning liquid level, the liquid extinguishing agent box unit further comprises a female spring level gauge and a base welded on the inner bottom surface of the liquid extinguishing agent box body, wherein one end of the female spring level gauge 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 level gauge 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 burning of a fire detecting pipe of a cabinet and damage of electronic elements in the cabinet and the delay of fire detection of the fire detecting pipe in the prior art, 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 slowly 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 slow 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 nozzle 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 discharge port, which is arranged on the right end surface of the embedded box body and is provided with the embedded gas alarm main machine; the embedded type box body is a flat cuboid shell, a high-pressure nitrogen starting bottle group unit is transversely arranged at the longitudinal middle part in the embedded type box body, the liquid fire extinguishing agent box unit is transversely arranged at 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 and a fire extinguishing control unit are sequentially arranged 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 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 adapter provided with a driving side port blasting diaphragm and arranged on the liquid fire extinguishing agent box body, a liquid injection port and a plug thereof, and a liquid outlet right-angle adapter provided 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 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 adapter and the liquid outlet right-angle adapter: a vertical baffle plate with a strip-shaped air guide hole at the lower part, or/and an air guide plate frame with an acute-angle inclined plane 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.
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 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 liquid fire extinguishing agent box in when just putting out a fire in order to ensure to the extremely early fire detection of rack in, 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 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-suction type fire detection system utilizing the embedded air-suction type detection automatic fire extinguishing plate can detect the fire in the cabinet very early at the initial stage.
2. When fire disaster occurs in the cabinet adopting the embedded air-breathing type detection automatic fire extinguishing disc disclosed by the invention for extinguishing fire, the liquid fire extinguishing agent in the liquid fire extinguishing agent box body can be released smoothly and cleanly under low pressure 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 ensured not to be 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 detector 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 provided by 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 construction of the high pressure nitrogen start-up cylinder set of FIG. 3;
FIG. 8 is a schematic structural view of a second embodiment of the present invention, illustrating a suction type detection automatic fire extinguishing apparatus;
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 of FIG. 9;
fig. 9b is a schematic view of the right end face of the suction type detection automatic fire extinguishing plate in fig. 9.
Detailed Description
The present invention provides an automatic fire extinguishing system, an air-breathing type detection automatic fire extinguishing device and an embedded air-breathing type detection automatic fire extinguishing plate, which will be described in detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 3, 4, 5 and 6, the automatic fire extinguishing system provided by the invention comprises 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 conveying 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 box body of the liquid extinguishing agent in sequence along the transverse direction: 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; 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; if 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 fire extinguishing 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 two acute-angle inclined air guide plate frames 16-9 can also be sequentially arranged on the inner bottom surface of the liquid fire extinguishing agent box body at intervals and arranged along the outflow direction of the liquid fire extinguishing agent; also can be successively arranged on the bottom surface in the liquid extinguishing agent box body at intervals: a vertical partition board with a strip-shaped air guide hole at the lower part and a vertical partition board with a strip-shaped air guide hole at the upper part; 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 fire 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 to extinguish 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, impact on the liquid fire extinguishing agent in the liquid fire extinguishing agent box body is reduced, and the liquid fire extinguishing agent in the liquid fire extinguishing agent box body is cleanly extruded out, 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 abutted against the inner top surface of the liquid fire extinguishing agent box body, and a plurality of grooves are formed in the top surface of the T-shaped air inlet nozzle along the radial direction in a circle. 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 the liquid extinguishing agent is 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, 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 suction type detector unit 12 is mainly added on the basis of the first embodiment, and the 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 a fire extinguishing system.
As shown in fig. 8, the schematic structural diagram of the air-suction type detection automatic fire extinguishing device provided by the present invention includes an air-suction type detector unit 12, an automatic fire extinguishing system controlled by linkage 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 gas starting cylinder group unit 14, a nitrogen gas driving pipeline 15, a liquid fire extinguishing agent tank unit 16, a liquid fire extinguishing agent conveying pipeline 17, a spray head 18, and a pressure feedback signal device, and the pressure feedback signal device is disposed on the nitrogen gas 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 type detector unit 12 monitors and detects whether a fire disaster occurs in a closed fire-proof area (such as a cabinet) in real time through a gas suction sampling pipeline, after 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 opening blasting diaphragm, the high-pressure nitrogen enters the liquid fire extinguishing agent box body and simultaneously breaks through the output side blasting diaphragm, the liquid fire extinguishing agent is stored in the liquid fire extinguishing agent box body, driven by the high-pressure nitrogen, and is sprayed through the liquid fire extinguishing agent conveying pipeline 17 to the spray nozzle 18 to carry out total flooding fire extinguishing in the closed fire-proof area.
Of course, the automatic fire extinguishing device with air suction type detection provided by the embodiment can also be applied to the places with non-closed fire-protection areas.
Example three:
in order to solve the problem that the pressure of nitrogen released instantaneously when the fire detecting tube of the cabinet is burned is large, which causes the damage of electronic components in the cabinet and the problem that the fire detecting tube detects the fire lag, the embodiment provides an embedded air-breathing type automatic fire extinguishing detection disc which has fast response of fire detection and low pressure and releases the fire extinguishing agent gently. The technical scheme of the automatic fire extinguishing disc is designed into a specific embedded air suction type detection automatic fire extinguishing disc on the basis of the second embodiment, and the automatic fire extinguishing disc comprises an air suction type detector unit, an automatic fire extinguishing system controlled by the air suction type 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 gas suction sampling pipeline sampling port 12-3 (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.
The system monitoring signal indicating unit includes fire alarm flashing light 33, system power indicator, fire extinguishing agent blowing indicator, fire alarm indicator 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 fire extinguishing agent shower nozzle 18', system resets and the emergency stop operation unit includes system reset button and emergency 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; the liquid outlet adapter (which is right-angled for space saving in the fire tray) is connected to the liquid fire-extinguishing agent spray head 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 a fire extinguishing agent spraying signal and a fire extinguishing stopping signal, and is respectively electrically connected with a fire extinguishing agent spraying indicator lamp and a fire extinguishing stopping indicator lamp in the system monitoring signal indicating unit, and the fire alarm host 12-1 outputs a fire alarm signal and a system power state signal, and is respectively electrically connected with a fire alarm flash lamp 33, a system power indicator lamp and a 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 gas in the cabinet to detect and judge smoke or/and gas or/and temperature in the gas, and 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 gas 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 a period of time (0-30 s) is delayed by fire extinguishing control unit 13, electromagnetically driven valve 14-1 is started to open container valve 14-3, high-pressure nitrogen flows to the air inlet adapter through nitrogen steel cylinder 14-4, container valve 14-3, nitrogen drive pipeline and tee 22, so that drive side port blasting diaphragm is broken, and then liquid fire extinguishing agent is stored in the drive box body entering into the liquid fire extinguishing agent box body and flows to the liquid outlet adapter, so that output side port blasting diaphragm is broken, and then fire extinguishing agent is released into the cabinet through 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, 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 present invention has been described in the above embodiments by taking the enclosed fireproof area as an example, it should be understood that the invention is characterized in that: the top surface of the T-shaped air inlet nozzle is abutted against 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 plane 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 as well as 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 changes or modifications to the present invention without departing from the spirit and scope of the above-described invention, but all of them should fall within the protection scope of the technical solution of the present invention.
Claims (9)
1. An automatic fire extinguishing system is characterized by comprising 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, wherein the pressure feedback signal device is arranged on the nitrogen driving pipeline; 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 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 conversion joint: a vertical baffle plate with a strip-shaped air guide hole at the lower part, or/and an air guide plate frame with an acute-angle inclined plane is arranged on the bottom surface of the baffle plate along the outflow direction of the liquid fire extinguishing agent.
2. The automatic fire extinguishing system according to claim 1, wherein the burst pressure of the driving side port burst disk is 0.6MPa to 0.8MPa, and the burst pressure of the discharging side port burst disk is 0.6MPa to 0.8MPa.
3. The automatic fire extinguishing system according to claim 1 or 2, wherein the air intake adapter is provided in the middle of the left side of the left end face of the liquid fire extinguishing agent tank 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.
4. The automatic fire extinguishing system according to claim 3, 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 communicated 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 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.
5. The automatic fire extinguishing system according to claim 4, wherein the liquid fire extinguishing agent tank unit further comprises a female spring level gauge and a base welded to an inner bottom surface of the liquid fire extinguishing agent tank body, wherein one end of the female spring level gauge is disposed at an upper right portion of an upper end surface of the liquid fire extinguishing agent tank body, and the other end thereof is fixed to the base.
6. The automatic fire extinguishing system of claim 3, wherein 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 fire extinguishing agent.
7. The automatic fire extinguishing system of claim 4 or 5, wherein 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.
8. An automatic fire extinguishing system according to claim 6, wherein the operating pressure of the liquid fire extinguishing agent tank is 2.5MPa to 5MPa.
9. The automatic fire extinguishing system according to claim 7, wherein the operating pressure of the liquid fire extinguishing agent tank is 2.5 to 5MPa.
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| CN202211277371.5A CN115645782B (en) | 2022-10-19 | 2022-10-19 | Automatic fire extinguishing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210448182U (en) * | 2019-07-25 | 2020-05-05 | 浙江力高泵业科技有限公司 | Oil-liquid separation device for machining cutting fluid |
| CN212882470U (en) * | 2020-08-06 | 2021-04-06 | 云南星泉科技有限公司 | Natural pigment's environment-friendly fixing agent preparation facilities |
| WO2021211018A1 (en) * | 2020-04-14 | 2021-10-21 | Геннадий Николаевич КУПРИН | Cleaning up spills of liquefied natural gas using a hybrid foam |
| CN217526164U (en) * | 2022-01-19 | 2022-10-04 | 意安天航消防设备(天津)有限公司 | Embedded intelligent fire extinguishing device |
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- 2022-10-19 CN CN202211277371.5A patent/CN115645782B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210448182U (en) * | 2019-07-25 | 2020-05-05 | 浙江力高泵业科技有限公司 | Oil-liquid separation device for machining cutting fluid |
| WO2021211018A1 (en) * | 2020-04-14 | 2021-10-21 | Геннадий Николаевич КУПРИН | Cleaning up spills of liquefied natural gas using a hybrid foam |
| CN212882470U (en) * | 2020-08-06 | 2021-04-06 | 云南星泉科技有限公司 | Natural pigment's environment-friendly fixing agent preparation facilities |
| CN217526164U (en) * | 2022-01-19 | 2022-10-04 | 意安天航消防设备(天津)有限公司 | Embedded intelligent fire extinguishing device |
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Denomination of invention: An automatic fire extinguishing system Granted publication date: 20231222 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN BOKANG ELECTRONICS Co.,Ltd. Registration number: Y2024980008418 |