CN220588775U - Battery box fire extinguishing system based on liquid nitrogen and carbon dioxide - Google Patents
Battery box fire extinguishing system based on liquid nitrogen and carbon dioxide Download PDFInfo
- Publication number
- CN220588775U CN220588775U CN202321856675.7U CN202321856675U CN220588775U CN 220588775 U CN220588775 U CN 220588775U CN 202321856675 U CN202321856675 U CN 202321856675U CN 220588775 U CN220588775 U CN 220588775U
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- CN
- China
- Prior art keywords
- fire extinguishing
- carbon dioxide
- liquid nitrogen
- battery box
- extinguishing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 64
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 32
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 title claims abstract description 32
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 230000001629 suppression Effects 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 4
- 230000000007 visual effect Effects 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 6
- 238000004880 explosion Methods 0.000 abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical compound FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 1
- 208000014674 injury Diseases 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
- 230000000644 propagated effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery box fire extinguishing system based on liquid nitrogen and carbon dioxide, which comprises: the fire extinguishing agent storage mechanism is used for storing liquid nitrogen and carbon dioxide, the controller, the plurality of fire extinguishing nozzles are used for being installed on the battery box in a one-to-one correspondence manner, and the monitoring mechanism is used for monitoring the internal state of the battery box; the fire extinguishing agent storage mechanism is connected with a plurality of fire extinguishing agent spraying heads through conveying pipelines respectively, a control valve is connected between each fire extinguishing agent spraying head and the fire extinguishing agent storage mechanism, and the control valve and the monitoring mechanism are electrically connected with the controller respectively. According to the utility model, liquid nitrogen and carbon dioxide are used as fire extinguishing agents, and when initial fire occurs due to out-of-control of the batteries, the fire extinguishing agents are rapidly sprayed by precisely controlling the fire-fighting spray heads one to one, wherein the liquid nitrogen can reduce the whole temperature of adjacent batteries and modules while extinguishing fire, prevent thermal diffusion, and the carbon dioxide can reduce the oxygen concentration in a space, so that long-time combustion and explosion suppression is realized, and the safety during fire extinguishing is effectively improved.
Description
Technical Field
The utility model relates to the technical field of energy storage fire safety, in particular to a battery box fire extinguishing system based on liquid nitrogen and carbon dioxide.
Background
At present, in the fire-fighting systems applied in the energy storage field, the common fire-fighting systems related to perfluoro-hexanone and heptafluoropropane are available, but the fire-fighting systems have obvious defects in quick fire extinguishment, temperature reduction and long-time combustion and explosion suppression effects. However, electrochemical energy storage belongs to highly energy-intensive chemical integrated equipment, once thermal runaway occurs, the thermal runaway can be rapidly propagated among battery modules, battery cabinets and even energy storage battery cabins, and combustible gas released during battery combustion can further prolong combustion time, increase extinguishing difficulty and even cause explosion, and finally serious economic and personnel injury is caused, so that the indispensable characteristics of a fire protection system in an energy storage system are self-evident.
Disclosure of Invention
In order to solve the technical problems in the background technology, the utility model provides a battery box fire extinguishing system based on liquid nitrogen and carbon dioxide.
The utility model provides a battery box fire extinguishing system based on liquid nitrogen and carbon dioxide, which comprises: the fire extinguishing agent storage mechanism is used for storing liquid nitrogen and carbon dioxide, the controller, the plurality of fire extinguishing nozzles are used for being installed on the battery box in a one-to-one correspondence manner, and the monitoring mechanism is used for monitoring the internal state of the battery box;
the fire extinguishing agent storage mechanism is connected with a plurality of fire extinguishing agent spraying heads through conveying pipelines respectively, a control valve is connected between each fire extinguishing agent spraying head and the fire extinguishing agent storage mechanism, and the control valve and the monitoring mechanism are electrically connected with the controller respectively.
Preferably, the monitoring mechanism includes a temperature sensor, a CO sensor, a smoke sensor and a VOC sensor for installation in the battery box, the temperature sensor, the CO sensor, the smoke sensor and the VOC sensor being electrically connected with the controller, respectively.
Preferably, the system further comprises an audible and visual alarm for audible and visual alarm, and the controller is electrically connected with the audible and visual alarm.
Preferably, the system further comprises a display control mechanism, and the display control mechanism is electrically connected with the controller.
Preferably, the fire extinguishing agent storage mechanism further comprises a gas release alarm lamp for performing light alarm when the fire extinguishing agent is released by the fire extinguishing agent storage mechanism, and the gas release alarm lamp is electrically connected with the controller.
Preferably, the controller is electrically connected with the pressure release window.
Preferably, the controller is further configured to control the manual start-stop control valve.
Preferably, the fire extinguishing agent storage mechanism comprises a cabinet body, a fire extinguishing agent storage bottle stored with liquid nitrogen and carbon dioxide and an ultralow temperature electromagnetic valve, wherein the fire extinguishing agent storage bottle is arranged in the cabinet body and is connected with the ultralow temperature electromagnetic valve, the ultralow temperature electromagnetic valve is connected with the plurality of control valves through conveying pipelines respectively, and the ultralow temperature electromagnetic valve is electrically connected with the controller.
According to the battery box fire extinguishing system based on the liquid nitrogen and the carbon dioxide, when one battery box is abnormal, the monitoring mechanism corresponding to the battery box sends a signal to the controller, and the controller controls the control valve corresponding to the battery box to be opened, so that accurate fire protection is realized. According to the utility model, liquid nitrogen and carbon dioxide are used as fire extinguishing agents, and when initial fire occurs due to out-of-control of the batteries, the fire extinguishing agents are rapidly sprayed by precisely controlling the fire-fighting spray heads one to one, wherein the liquid nitrogen can reduce the whole temperature of adjacent batteries and modules while extinguishing fire, prevent thermal diffusion, and the carbon dioxide can reduce the oxygen concentration in a space, so that long-time combustion and explosion suppression is realized, and the safety during fire extinguishing is effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of a battery box fire extinguishing system based on liquid nitrogen and carbon dioxide according to an embodiment of the present utility model.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1, a battery box fire extinguishing system based on liquid nitrogen and carbon dioxide according to the present utility model includes: the fire extinguishing agent storage mechanism 1 stores liquid nitrogen and carbon dioxide, a plurality of fire fighting nozzles 6 which are arranged on the battery box in a one-to-one correspondence manner, a monitoring mechanism 5 which is used for monitoring the internal state of the battery box, and a controller 2;
the fire extinguishing agent storage mechanism 1 is respectively connected with a plurality of fire extinguishing agent 6 through a conveying pipeline 3, a control valve 4 is connected between each fire extinguishing agent 6 and the fire extinguishing agent storage mechanism 1, and the control valve 4 and the monitoring mechanism 5 are respectively electrically connected with the controller 2.
When one of the battery boxes is abnormal, the monitoring mechanism 5 corresponding to the battery box sends a signal to the controller 2, and the controller 2 controls the control valve 4 corresponding to the battery box to be opened, so that accurate fire protection is realized.
Because liquid nitrogen and carbon dioxide are used as fire extinguishing agents, the fire extinguishing agents are clean, environment-friendly and efficient, the liquid nitrogen can have obvious cooling effect on an acted object after being released, and the carbon dioxide can dilute the spatial oxygen concentration.
According to the utility model, liquid nitrogen and carbon dioxide are used as fire extinguishing agents, and when initial fire occurs due to out-of-control of the batteries, the fire extinguishing agents are rapidly sprayed by accurately controlling the fire-fighting spray heads 6 one by one, wherein the liquid nitrogen can reduce the whole temperature of adjacent batteries and modules while extinguishing fire, prevent thermal diffusion, and the carbon dioxide can reduce the oxygen concentration in a space, so that long-time combustion and explosion suppression is realized, and the safety during fire extinguishing is effectively improved.
In this embodiment, the system further includes an audible and visual alarm for audible and visual alarm, and the controller 2 is electrically connected with the audible and visual alarm, so as to prompt the staff to process in time.
In this embodiment, the monitoring mechanism 5 includes a temperature sensor, a CO sensor, a smoke sensor and a VOC sensor for being installed in the battery box, and the temperature sensor, the CO sensor, the smoke sensor and the VOC sensor are electrically connected with the controller 2 respectively to obtain the temperature, the CO concentration, the smoke concentration and the VOC concentration in the battery box, so that the state of the battery box can be monitored conveniently in real time.
In this embodiment, the system further includes a display control mechanism, where the display control mechanism is electrically connected to the controller 2 to implement information feedback display.
In order to timely and rapidly release the fire extinguishing agent when the battery box is in a fire condition, in the embodiment, the fire extinguishing agent storage mechanism 1 comprises a cabinet body, a fire extinguishing agent storage bottle storing liquid nitrogen and carbon dioxide and an ultralow temperature electromagnetic valve, wherein the fire extinguishing agent storage bottle is arranged in the cabinet body and is connected with the ultralow temperature electromagnetic valve, and the ultralow temperature electromagnetic valve is respectively connected with a plurality of control valves 4 through conveying pipelines 3.
In the present embodiment, a gas release warning lamp for performing light warning when the fire extinguishing agent storage mechanism 1 releases the fire extinguishing agent is further included, and the gas release warning lamp is electrically connected with the controller 2 to alert the worker that the fire extinguishing agent is being released.
In a further embodiment, a pressure relief window for mounting on the energy storage device is also included, the pressure relief window being electrically connected to the controller 2.
Specifically, the controller 2 controls the opening of the pressure release window according to the state parameter in the battery box detected by the monitoring mechanism 5 and a preset threshold value, and can open the pressure release window for exhausting before the danger occurs, so that the safety is improved.
In this embodiment, the fire extinguishing device further comprises a manual emergency start-stop switch for manually starting and stopping the control valve 4, and the manual emergency start-stop switch is electrically connected with the controller 2, so that the manual start-stop control valve 4 can extinguish fire, and the safety is further improved.
Specifically, a manual emergency start-stop switch is mounted on the display control mechanism for easy operation.
In this embodiment, a multi-stage alarm strategy is preset in the controller 2.
In one embodiment, the multi-level alarm strategy includes a primary alarm condition, a secondary alarm condition, and a tertiary alarm condition;
when the VOC concentration exceeds the standard, triggering a first-level alarm condition, and controlling the monitoring mechanism 5 to increase the adoption frequency by the controller 2;
when the concentrations of VOC and CO exceed the standard, a secondary alarm condition is triggered, and the corresponding control valve 4 can be manually started to open for fire extinguishing;
when the VOC, the CO and the temperature exceed the standards, a three-level alarm condition is triggered, and the controller 2 controls the corresponding control valve 4 to be opened, so that fire extinguishing is performed.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. A battery box fire suppression system based on liquid nitrogen and carbon dioxide, comprising: the fire extinguishing agent storage mechanism (1) stores liquid nitrogen and carbon dioxide, the controller (2), a plurality of fire extinguishing spray heads (6) which are arranged on the battery box in a one-to-one correspondence manner, and the monitoring mechanism (5) which is used for monitoring the internal state of the battery box;
the fire extinguishing agent storage mechanism (1) is connected with a plurality of fire extinguishing agent storage mechanisms (6) through conveying pipelines (3) respectively, a control valve (4) is connected between each fire extinguishing agent storage mechanism (1) and each fire extinguishing agent storage mechanism (6), and the control valve (4) and the monitoring mechanism (5) are electrically connected with the controller (2) respectively.
2. The battery box fire extinguishing system based on liquid nitrogen and carbon dioxide according to claim 1, characterized in that the monitoring means (5) comprises a temperature sensor, a CO sensor, a smoke sensor and a VOC sensor for installation in the battery box, the temperature sensor, the CO sensor, the smoke sensor and the VOC sensor being electrically connected with the controller (2), respectively.
3. The fire extinguishing system of a battery box based on liquid nitrogen and carbon dioxide according to claim 1, further comprising an audible and visual alarm for audible and visual alarm, the controller (2) being electrically connected to the audible and visual alarm.
4. The fire suppression system of a battery box based on liquid nitrogen and carbon dioxide according to claim 1, further comprising a display and control mechanism electrically connected to the controller (2).
5. The battery box fire extinguishing system based on liquid nitrogen and carbon dioxide according to claim 1, further comprising a gas release warning lamp for warning light when the fire extinguishing agent storage mechanism (1) releases the fire extinguishing agent, the gas release warning lamp being electrically connected with the controller (2).
6. The fire suppression system of a battery box based on liquid nitrogen and carbon dioxide according to claim 1, further comprising a pressure relief window electrically connected to the controller (2).
7. The battery box fire suppression system based on liquid nitrogen and carbon dioxide according to claim 1, further comprising a manual emergency start-stop switch for manual start-stop control valve (4), the manual emergency start-stop switch being electrically connected with the controller (2).
8. The battery box fire extinguishing system based on liquid nitrogen and carbon dioxide according to claim 1, wherein the fire extinguishing agent storage mechanism (1) comprises a cabinet body, a fire extinguishing agent storage bottle storing liquid nitrogen and carbon dioxide and an ultra-low temperature electromagnetic valve, the fire extinguishing agent storage bottle is arranged in the cabinet body and connected with the ultra-low temperature electromagnetic valve, the ultra-low temperature electromagnetic valve is connected with a plurality of control valves (4) through conveying pipelines (3) respectively, and the ultra-low temperature electromagnetic valve is electrically connected with the controller (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321856675.7U CN220588775U (en) | 2023-07-14 | 2023-07-14 | Battery box fire extinguishing system based on liquid nitrogen and carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321856675.7U CN220588775U (en) | 2023-07-14 | 2023-07-14 | Battery box fire extinguishing system based on liquid nitrogen and carbon dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220588775U true CN220588775U (en) | 2024-03-15 |
Family
ID=90166635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321856675.7U Active CN220588775U (en) | 2023-07-14 | 2023-07-14 | Battery box fire extinguishing system based on liquid nitrogen and carbon dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220588775U (en) |
-
2023
- 2023-07-14 CN CN202321856675.7U patent/CN220588775U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |