CN219804172U - Automatic starting fire extinguishing system for power distribution cabinet of nuclear power station - Google Patents
Automatic starting fire extinguishing system for power distribution cabinet of nuclear power station Download PDFInfo
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- CN219804172U CN219804172U CN202321314793.5U CN202321314793U CN219804172U CN 219804172 U CN219804172 U CN 219804172U CN 202321314793 U CN202321314793 U CN 202321314793U CN 219804172 U CN219804172 U CN 219804172U
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- fire extinguishing
- dry powder
- powder tank
- fire
- nuclear power
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- 238000009826 distribution Methods 0.000 title claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000000843 powder Substances 0.000 claims abstract description 67
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 230000035939 shock Effects 0.000 claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 13
- 239000007858 starting material Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000001012 protector Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 8
- 239000003814 drug Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 102000005393 Sodium-Potassium-Exchanging ATPase Human genes 0.000 description 2
- 108010006431 Sodium-Potassium-Exchanging ATPase Proteins 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000026676 system process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Abstract
The utility model relates to the technical field of fire-fighting equipment, in particular to an automatic starting fire-extinguishing system for a power distribution cabinet of a nuclear power station. The utility model comprises a fire extinguishing device, a detection device and a control device respectively connected with the fire extinguishing device and the detection device, wherein: the fire extinguishing device comprises a shock absorption cabinet body, a nitrogen cylinder, a dry powder tank and a control assembly, wherein the nitrogen cylinder, the dry powder tank and the control assembly are positioned on the shock absorption cabinet body, and the nitrogen cylinder and the dry powder tank are respectively arranged on two sides of the shock absorption cabinet body; the detection device comprises a smoke sensor and an infrared detector; the control device comprises a controller, a relay and an alarm, wherein the controller receives detection signals of the detection device, drives the fire extinguishing device and the alarm through a control assembly, and is connected with an external power supply through the relay. The utility model adopts the SL 2-level shock-resistant damping cabinet body, and has better shock resistance effect; the control device and the control component are utilized for linkage, so that the serious loss caused by fire due to uncontrollable reasons is effectively avoided, and the fire escape time is prolonged.
Description
Technical Field
The utility model relates to the technical field of fire-fighting equipment, in particular to an automatic starting fire-extinguishing system for a power distribution cabinet of a nuclear power station.
Background
With the continuous progress of technology, a nuclear power station is gradually popularized in China as an emerging energy supply mode of a superfine dry powder fire extinguishing device for the nuclear power station, and in the nuclear power station, the safety of a sodium pump lubricating oil cooling system process room is extremely important, so that the fire extinguishing device is required to be started immediately to extinguish fire when a fire occurs in the sodium pump lubricating oil cooling system process room in the safety construction of the nuclear power station.
The existing fire-fighting equipment has certain reaction time from the occurrence of fire to the fire-extinguishing operation, and cannot meet the requirement of instant fire extinguishing, so that the existing nuclear power station has great potential safety hazard.
Disclosure of Invention
The utility model aims to solve the technical problems that: the automatic starting fire extinguishing system for the power distribution cabinet of the nuclear power station overcomes the defects of the prior art, and has better earthquake-resistant effect by adopting a damping cabinet body arranged in SL 2-level earthquake-resistant mode; the control device and the control component are utilized for linkage, so that the serious loss caused by fire due to uncontrollable reasons is effectively avoided, and the fire escape time is prolonged.
The technical scheme of the utility model is as follows:
the utility model provides a nuclear power station switch board is with automatic start fire extinguishing systems, includes extinguishing device, detection device to and the controlling means who links to each other with extinguishing device and detection device respectively, wherein:
the fire extinguishing device comprises a shock absorption cabinet body, a nitrogen cylinder, a dry powder tank and a control component, wherein the nitrogen cylinder, the dry powder tank and the control component are positioned on the shock absorption cabinet body, the nitrogen cylinder and the dry powder tank are respectively arranged on two sides of the shock absorption cabinet body, and the control component is respectively connected with the nitrogen cylinder and the dry powder tank and extends to the arrangement of a protecting object;
the detection device comprises a smoke sensor and an infrared detector head and is used for detecting a fire point in the nuclear power station;
the control device comprises a controller, a relay and an alarm, wherein the controller receives detection signals of the detection device, drives the fire extinguishing device and the alarm through a control assembly, and is connected with an external power supply through the relay.
Preferably, the damping cabinet body is provided with a fixing clamping groove, a fixing screw rod, a fixing clamp, a fixing bracket and a metal binding belt, wherein the fixing clamping groove is positioned at the bottom of the nitrogen cylinder, and the fixing screw rod is vertically arranged around the nitrogen cylinder; the fixing clamp is respectively and transversely arranged between the nitrogen cylinder and the dry powder tank at intervals; the fixed bolster sets up perpendicularly in control assembly bottom and links to each other with control assembly through the metal ribbon.
Preferably, the damping cabinet body adopts a wall-mounted or floor-type structure and adopts SL 2-level anti-seismic arrangement.
Preferably, the control assembly comprises a gas starter connected with the nitrogen cylinder, a pressure reducer arranged between the nitrogen cylinder and the dry powder tank, and a powder conveying spray head connected with the dry powder tank; the gas starter is communicated with a bottle head valve of the nitrogen bottle, nitrogen enters the dry powder tank through the pressure reducer, and dry powder in the dry powder tank is sprayed onto the surface of a protector through the powder conveying spray head to extinguish fire.
Preferably, the normally open contact of the relay is connected in series between the base of the second triode and the power supply.
Preferably, the controller receives a flame detection signal, the reverse end of the controller is connected with a flame reference value signal and outputs a control signal, when the flame detection signal is lower than the flame reference value signal, the comparator outputs a low-level signal, and when the flame detection signal is higher than the reference value signal, the comparator outputs a high-level signal; the base electrode is coupled with the output end of the comparator, the emitter electrode is grounded, and the collector electrode is coupled with the signal loop of the fire extinguishing device.
Preferably, the control device further includes a wireless transmission unit, and the controller transmits the detected ignition information to the outside through the wireless transmission unit.
Preferably, a low pressure relief valve, a pressure gauge and a safety valve are arranged at the top of the dry powder tank.
Preferably, the dry powder tank is connected with the powder conveying spray head through a metal hose, and a pressure feedback device is arranged on the metal hose; the pressure feedback device is connected with the controller, and after the fire extinguishing device starts to extinguish fire, the pressure feedback device on the metal hose detects the pressure change and feeds the pressure change back to the controller; the controller transmits signals to the monitoring machine room and related departments in real time and controls the start and stop of the gas starter in parallel.
Preferably, a spray element is provided at the outlet of the dry powder canister.
Compared with the prior art, the utility model has the following beneficial effects:
the powder conveying nozzle is provided with the quick connecting device, and the equipment is connected with the metal pipeline by adopting the metal hose so as to separate the powder conveying pipe from the equipment when the powder conveying pipe is subjected to strong vibration, thereby being more convenient to use;
the control device and the control component are utilized for linkage, the controller detects the flame condition through the detection device, and the linkage control of the fuel gas starter is realized through the closed-loop control of the pressure feedback device arranged on the metal hose, so that the serious loss caused by fire due to uncontrollable reasons is effectively avoided, and the fire escape time is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural view of an assembly of a fire extinguishing apparatus and a detecting apparatus.
Fig. 2 is a schematic structural view of the fire extinguishing apparatus.
Fig. 3 is a schematic structural view of the shock absorbing cabinet.
Fig. 4 is a schematic structural view of the control assembly.
In the figure: 1. a fire extinguishing device; 11. a shock absorbing cabinet body; 111. a fixing slot; 112. fixing the clamp; 113. a fixed bracket; 114. fixing a screw rod; 115. a metal tie; 12. a nitrogen cylinder; 13. a dry powder tank; 14. a control assembly; 141. a gas starter; 142. a pressure reducer; 143. a pressure gauge; 144. a low pressure relief valve; 145. a safety valve; 146. a pressure feedback device; 147. powder conveying spray head; 2. a detection device; 3. and (5) igniting the fire point.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
Example 1
As shown in fig. 1, the embodiment provides an automatic starting fire extinguishing system for a power distribution cabinet of a nuclear power station, which comprises a fire extinguishing device 1, a detection device 2 and a control device respectively connected with the fire extinguishing device 1 and the detection device 2.
As shown in fig. 2 to 3, the fire extinguishing device 1 comprises a shock absorption cabinet 11, and a nitrogen gas cylinder 12, a dry powder cylinder 13 and a control component 14 which are positioned on the shock absorption cabinet 11, wherein the nitrogen gas cylinder 12 and the dry powder cylinder 13 are respectively arranged on two sides of the shock absorption cabinet 11, and the control component 14 is respectively connected with the nitrogen gas cylinder 12 and the dry powder cylinder 13 and extends to the arrangement of a protector;
the detection device 2 comprises a smoke sensor and an infrared detector head and is used for detecting a fire point 3 in the nuclear power station;
the control device comprises a controller, a relay and an alarm, wherein the controller receives detection signals of the detection device 2, drives the fire extinguishing device 1 and the alarm through the control component 14, and is connected with an external power supply through the relay.
Working principle:
the cabinet body of the utility model is internally provided with a nitrogen driving bottle, a gas starter 141, a dry powder tank 13, a pressure reducing device, a low pressure relief valve 144, a safety valve 145, a pressure gauge 143 and the like. The gas starter 141 is communicated with a nitrogen driving bottle head valve, and an electric ignition head is arranged in the nitrogen gas production medicine box; the cabinet body is also internally provided with a control box for receiving a fire-fighting host computer signal, and the signal output end of the control box is connected with an electric ignition head on the nitrogen gas production medicine box; an outlet of the dry powder storage container is provided with a spray element.
The utility model has the advantages that the reinforcement measures are carried out in the nuclear power station, the earthquake-resistant S2 level can be achieved, and the use reliability and the safety in the nuclear power station are effectively improved.
The nitrogen gas production medicine box can produce nitrogen gas under the control of the control box, the driving bottle head valve is opened, the nitrogen gas in the driving bottle pushes superfine dry powder extinguishing agent in the dry powder storage container to spray, the structure is simple, the control parts are few, leakage is not easy to occur, and the use reliability and safety are effectively improved.
The quick connecting device is arranged on the spraying pipeline, and the equipment and the powder conveying pipeline are connected by adopting the metal hose so as to separate the powder conveying pipeline from the equipment when the powder conveying pipeline is subjected to strong shock, thereby being more convenient to use.
The utility model adds the anti-seismic bracket which is convenient to install on the cabinet body, and the bracket is matched with fire extinguishing equipment for use, can be hung on a wall or installed on the ground, and can reach SL2 level anti-seismic. Safety is increased.
The pressure feedback device 146 is arranged on the spraying pipeline, the signal output end of the pressure feedback device 146 is connected with the control box, after the cabinet type superfine dry powder extinguishing device 1 is started to extinguish fire, the pressure feedback device 146 on the output pipeline detects that the pressure change is started to the control box, and the control box can transmit the signal to the monitoring machine room and related departments in time, so that the device is more convenient to use.
The damping cabinet 11 adopting SL2 level anti-vibration arrangement is provided with the quick connecting device, and the equipment and the metal pipeline are connected by adopting the metal hose so as to separate the powder conveying pipe from the equipment when strong vibration is received, thereby being more convenient to use;
the control device and the control component 14 are utilized for linkage, the controller detects the flame condition through the detection device 2, and the linkage control of the gas starter 141 is realized through the closed-loop control of the pressure feedback device 146 arranged on the metal hose, so that the serious loss caused by fire due to uncontrollable reasons is effectively avoided, and the fire escape time is prolonged.
Example 2
On the basis of embodiment 1, the damping cabinet 11 is provided with a fixing clamping groove 111, a fixing screw 114, a fixing clamp 112, a fixing bracket 113 and a metal binding belt 115, wherein the fixing clamping groove 111 is positioned at the bottom of the nitrogen cylinder 12, and the fixing screw 114 is vertically arranged around the nitrogen cylinder 12; the fixing clamp 112 is respectively and transversely arranged between the nitrogen bottle 12 and the dry powder tank 13 at intervals; the fixing bracket 113 is vertically disposed at the bottom of the control assembly 14 and is connected to the control assembly 14 by a metal tie 115.
Preferably, the damping cabinet 11 adopts a wall-hanging or floor-type structure, and adopts SL 2-level anti-seismic arrangement.
Preferably, the control assembly 14 comprises a gas actuator 141 connected with the nitrogen bottle 12, a pressure reducer 142 arranged between the nitrogen bottle 12 and the dry powder tank 13, and a powder conveying spray head 147 connected with the dry powder tank 13; the gas starter 141 is communicated with a cylinder head valve of the nitrogen cylinder 12, nitrogen enters the dry powder tank 13 through the pressure reducer 142, and dry powder in the dry powder tank 13 is sprayed onto the surface of a protector through the powder delivery nozzle 147 to extinguish fire.
Preferably, the normally open contact of the relay is connected in series between the base of the second triode and the power supply.
Preferably, the controller receives a flame detection signal, the reverse end of the controller is connected with a flame reference value signal and outputs a control signal, when the flame detection signal is lower than the flame reference value signal, the comparator outputs a low-level signal, and when the flame detection signal is higher than the reference value signal, the comparator outputs a high-level signal; the base electrode is coupled to the output end of the comparator, the emitter electrode is grounded, and the collector electrode is coupled to the signal loop of the fire extinguishing device 1.
Preferably, the control device further includes a wireless transmission unit, and the controller transmits the detected ignition information to the outside through the wireless transmission unit.
Preferably, the top of the dry powder tank 13 is provided with a low pressure relief valve 144, a pressure gauge 143 and a safety valve 145.
Preferably, the dry powder tank 13 is connected with the powder conveying nozzle 147 through a metal hose, and the metal hose is provided with a pressure feedback device 146; the pressure feedback device 146 is connected with the controller, and after the fire extinguishing device 1 starts to extinguish fire, the pressure feedback device 146 on the metal hose detects the pressure change and feeds the pressure change back to the controller; the controller transmits signals to the monitoring machine room and related departments in real time and controls the start and stop of the gas starter 141 in parallel.
Preferably, a firing element is provided at the outlet of the dry powder canister 13. The spraying element comprises a powder conveying pipe connected with the fire extinguishing main body, and powder outlets of the spray heads face the protector.
Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a nuclear power station switch board is with automatic start fire extinguishing systems which characterized in that, including extinguishing device (1), detection device (2) to and the controlling means who links to each other with extinguishing device (1) and detection device (2) respectively, wherein:
the fire extinguishing device (1) comprises a shock absorption cabinet body (11), a nitrogen cylinder (12), a dry powder tank (13) and a control assembly (14), wherein the nitrogen cylinder (12), the dry powder tank (13) and the control assembly (14) are positioned on the shock absorption cabinet body (11), the nitrogen cylinder (12) and the dry powder tank (13) are respectively arranged at two sides of the shock absorption cabinet body (11), and the control assembly (14) is respectively connected with the nitrogen cylinder (12) and the dry powder tank (13) and extends to the arrangement of a protecting object;
the detection device (2) comprises a smoke sensor and an infrared detection head and is used for detecting a fire point (3) in the nuclear power station;
the control device comprises a controller, a relay and an alarm, wherein the controller receives detection signals of the detection device (2), drives the fire extinguishing device (1) and the alarm through the control component (14), and is connected with an external power supply through the relay.
2. The automatic starting fire extinguishing system for the nuclear power station power distribution cabinet according to claim 1, wherein a fixed clamping groove (111), a fixed screw rod (114), a fixed clamp (112), a fixed bracket (113) and a metal binding belt (115) are arranged on the shock absorption cabinet body (11), wherein the fixed clamping groove (111) is positioned at the bottom of the nitrogen cylinder (12), and the fixed screw rod (114) is vertically arranged around the nitrogen cylinder (12); the fixing clamp (112) is respectively and transversely arranged between the nitrogen bottle (12) and the dry powder tank (13) at intervals; the fixed bracket (113) is vertically arranged at the bottom of the control component (14) and is connected with the control component (14) through a metal binding belt (115).
3. The automatic starting fire extinguishing system for a nuclear power station power distribution cabinet according to claim 1 or 2, wherein the damping cabinet body (11) adopts a wall-hanging or floor-type structure and adopts an SL 2-level anti-seismic arrangement.
4. The automatic start-up fire extinguishing system for a nuclear power plant power distribution cabinet according to claim 1, characterized in that the control assembly (14) comprises a gas starter (141) connected to a nitrogen cylinder (12), a pressure reducer (142) installed between the nitrogen cylinder (12) and a dry powder tank (13), and a powder delivery nozzle (147) connected to the dry powder tank (13); the gas starter (141) is communicated with a bottle head valve of the nitrogen bottle (12), nitrogen enters the dry powder tank (13) through the pressure reducer (142), and dry powder in the dry powder tank (13) is sprayed onto the surface of a protector through the powder conveying nozzle (147) to extinguish fire.
5. The automatic start fire extinguishing system for a nuclear power station power distribution cabinet according to claim 1, wherein the normally open contact of the relay is connected in series between the base of the second triode and the power supply.
6. The automatic start fire extinguishing system for a nuclear power station power distribution cabinet according to claim 1, wherein the controller receives a flame detection signal, the reverse end of the flame detection signal is connected with a flame reference value signal and outputs a control signal, the comparator outputs a low level signal when the flame detection signal is lower than the flame reference value signal, and the comparator outputs a high level signal when the flame detection signal is higher than the reference value signal; the base electrode is coupled with the output end of the comparator, the emitter electrode is grounded, and the collector electrode is coupled with the signal loop of the fire extinguishing device (1).
7. The automatic start-up fire extinguishing system for a nuclear power station power distribution cabinet according to claim 1, wherein the control device further comprises a wireless transmission unit, and the controller transmits the detected fire information to the outside through the wireless transmission unit.
8. The automatic start-up fire extinguishing system for a nuclear power plant power distribution cabinet according to claim 1, characterized in that the top of the dry powder tank (13) is provided with a low pressure relief valve (144), a pressure gauge (143) and a safety valve (145).
9. The automatic starting fire extinguishing system for a nuclear power station power distribution cabinet according to claim 1, wherein the dry powder tank (13) is connected with a powder conveying spray head (147) through a metal hose, and a pressure feedback device (146) is arranged on the metal hose; the pressure feedback device (146) is connected with the controller, and after the fire extinguishing device (1) starts fire extinguishing, the pressure feedback device (146) on the metal hose detects pressure change and feeds the pressure change back to the controller; the controller transmits signals to the monitoring machine room and related departments in real time, and the controller is connected with a start-stop control gas starter (141).
10. The automatic start-up fire extinguishing system for a nuclear power station power distribution cabinet according to claim 1, characterized in that the outlet of the dry powder tank (13) is provided with a spray element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321314793.5U CN219804172U (en) | 2023-05-29 | 2023-05-29 | Automatic starting fire extinguishing system for power distribution cabinet of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321314793.5U CN219804172U (en) | 2023-05-29 | 2023-05-29 | Automatic starting fire extinguishing system for power distribution cabinet of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219804172U true CN219804172U (en) | 2023-10-10 |
Family
ID=88210899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321314793.5U Active CN219804172U (en) | 2023-05-29 | 2023-05-29 | Automatic starting fire extinguishing system for power distribution cabinet of nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219804172U (en) |
-
2023
- 2023-05-29 CN CN202321314793.5U patent/CN219804172U/en active Active
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