An energy storage station fire protection system

Abstract

The application relates to the technical field of energy storage station fire fighting, and discloses an energy storage station fire fighting system which comprises an outer cover body, a lifting ring arranged on the outer cover body and used for lifting, a fire condition detection module, a plurality of fire condition detection modules fixedly arranged on the cavity wall of the outer cover body, a fire extinguishing tank, a spraying pipe communicated with the fire extinguishing tank through a first electromagnetic valve, a plurality of spray heads arranged on the spraying pipe at equal intervals, a compressor fixedly arranged on the cavity wall of the outer cover body, a recovery tank fixedly arranged on the outer side wall of the outer cover body, an air separation device fixedly arranged on the recovery tank, the air separation device being used for separating air inhaled by the compressor and gaseous nitrogen, and a collection container. The application can facilitate lifting and arrangement, can rapidly cool the battery pack during fire extinguishing, can recycle the overall fire extinguishing consumables, and can effectively reduce the fire extinguishing cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage station fire fighting, in particular to an energy storage station fire fighting system. BACKGROUND

[0002] Energy storage batteries have many advantages as an energy carrier, but they still have some dangers, especially in the case of charging and discharging in a short time, a large amount of heat is generated, which is easy to cause thermal runaway and cause a fire. Modern energy storage stations generally combine a large number of energy storage batteries together, and the batteries are closely arranged. If one of the batteries experiences thermal runaway, there is no good cooling measure, even if the open flame is extinguished, the residual temperature of the battery is still high, which is easy to cause rekindling, and the high temperature may cause thermal runaway of adjacent batteries, and then cause the spread of battery thermal runaway in the prefabricated cabin, causing a large-scale fire or explosion accident, causing economic losses and casualties.

[0003] At present, the existing cooling and fire extinguishing system in the energy storage station (cabin) only carries a gas fire extinguishing system, which has serious deficiencies and defects. Although the gas fire extinguishing system can effectively extinguish the battery fire, the cooling effect is poor, and the temperature of the energy storage battery after extinguishing the fire is still high, and the heat release reaction inside the battery continues due to the high temperature that has not been timely dissipated, and the heat is transferred to the adjacent battery through heat conduction, which may induce thermal runaway of the adjacent battery, and then cause the spread of thermal runaway, causing a large-scale fire, and because of the battery thermal runaway and the subsequent internal reaction, a large amount of high-temperature flammable gas generated by the battery cannot be effectively treated, increasing the risk of battery rekindling. At the same time, the existing energy storage station fire fighting system is not convenient to set up as a whole, and the fire extinguishing material cannot be recycled, and the overall fire extinguishing cost is high. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the present application provides an energy storage station fire fighting system, which solves the problems of high cost of existing energy storage station fire fighting system, and the fire extinguishing material cannot be recycled, and the overall fire extinguishing cost is high.

[0006] (II) Technical solutions

[0007] In order to achieve the above object, the present application is realized by the following technical scheme: a kind of energy storage station fire-fighting system, comprising: outer cover, the outer cover is provided with lifting lug for hoisting;Fire detection module, several fire detection modules are fixedly arranged on the cavity wall of the outer cover;Fire extinguishing tank, fixedly arranged on the side cavity wall of the outer cover, the inner cavity of the fire extinguishing tank is provided with multiple fire extinguishing tanks, high pressure is filled in liquid nitrogen in the fire extinguishing tank;Spray pipe, communicated with the fire extinguishing tank by first electromagnetic valve, the spray pipe is arranged with several nozzles at equal intervals;Compressor, fixedly arranged on the cavity wall of the outer cover;Recovery tank, fixedly arranged on the outer side wall of the outer cover, air separation device is fixedly arranged on the recovery tank, the air outlet of the compressor is communicated with the air separation device by pipeline, and the air separation device is used to separate the air inhaled by the compressor and the nitrogen after gasification;Collecting container, buckle setting is arranged in the cavity bottom of the recovery tank, and the collecting container is communicated with the nitrogen outlet of the air separation device.

[0008] Preferably, the inner cavity of the fire extinguishing tank is provided with a pressurized gas cylinder, which is communicated with the fire extinguishing tank by a second electromagnetic valve and extends into the inner cavity bottom.

[0009] Preferably, the fire extinguishing tank and the pressurized gas cylinder are arranged in the inner cavity of the fire extinguishing tank by elastic buckle of buckle hoop.

[0010] Preferably, the air inlet end of the compressor is located in the inner cavity of the outer cover, and a filter is arranged at the air inlet end, to filter the dust particles of the inhaled mixed air.

[0011] Preferably, the air separation device adopts SMN membrane separation nitrogen making device, the air outlet end of the compressor is communicated with the air inlet end of the SMN membrane separation nitrogen making device, the nitrogen outlet end of the SMN membrane separation nitrogen making device is communicated with the collecting container, and the air outlet end of the SMN membrane separation nitrogen making device is communicated with the air exhaust channel.

[0012] Preferably, the collecting container is provided with a communication head, the communication head is communicated with the nitrogen outlet end of the SMN membrane separation nitrogen making device by electromagnetic valve and pipeline, and the end of the collecting container away from the communication head is provided with a safety valve.

[0013] Preferably, the inner cavity of the recovery tank is fixedly provided with a positioning seat, the positioning seat abuts against one end of the collecting container, the collecting container is fixedly installed in the recovery tank by mounting half hoop and cooperating with fixing bolt, and one end of the recovery tank is hingedly connected with a tank cover.

[0014] Preferably, the upper end surface of the outer cover is fixedly provided with several lifting rings.

[0015] (Three) beneficial effects

[0016] The application has the following beneficial effects:

[0017] The energy storage station fire extinguishing system, through the fire detection module, the fire extinguishing tank and the spray pipe, can open the first electromagnetic valve when detecting that the energy storage station has a fire, so that the liquid nitrogen in the fire extinguishing tank is sprayed out of the nozzle for efficient fire extinguishing and rapid cooling effect, effectively protecting the electrical components; through the compressor, air separation device and collection container, the gaseous nitrogen and air sucked by the compressor can be collected and separated, and the separated nitrogen can be collected and treated to form liquid nitrogen, effectively saving the fire extinguishing cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a front perspective structural schematic view of the present application;

[0019] Figure 2 is a bottom perspective structural schematic view of the present application;

[0020] Figure 3 is a whole structural schematic view of the present application;

[0021] Figure 4 is a rear perspective structural schematic view of the present application;

[0022] Figure 5 is a rear partial cutaway structural schematic view of the present application.

[0023] In the figure: 1, outer cover body; 2, fire detection module; 3, fire extinguishing tank; 4, fire extinguishing tank; 5, first electromagnetic valve; 6, spray pipe; 7, nozzle; 8, pressurized gas cylinder; 9, second electromagnetic valve; 10, buckle clamp; 11, compressor; 12, filter; 13, recovery tank; 14, air separation device; 15, air exhaust channel; 16, collection container; 17, communication head; 18, safety valve; 19, positioning seat; 20, installation half clamp; 21, fixing bolt; 22, tank cover; 23, lifting ring DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] Please refer to Figure 1The application provides a technical scheme: a fire-fighting system of an energy storage station, comprising: an outer cover body 1, a lifting ring 23 is arranged on the outer cover body 1 and used for lifting; a fire condition detection module 2, a plurality of fire condition detection modules 2 are fixedly arranged on a cavity wall of the outer cover body 1; a fire extinguishing box 3, fixedly arranged on a side cavity wall of the outer cover body 1, a plurality of fire extinguishing tanks 4 are arranged in an inner cavity of the fire extinguishing box 3, and high-pressure liquid nitrogen is filled into the fire extinguishing tanks 4; a spraying pipe 6, in communication with the fire extinguishing tanks 4 through a first electromagnetic valve 5, a plurality of spray heads 7 are arranged on the spraying pipe 6 at equal intervals; a compressor 11, fixedly arranged on the cavity wall of the outer cover body 1; a recovery box 13, fixedly arranged on an outer side wall of the outer cover body 1, an air separation device 14 is fixedly arranged on the recovery box 13, the air separation device 14 is in communication with an air outlet of the compressor 11 through a pipeline, and the air separation device 14 is used for separating air inhaled by the compressor 11 and gaseous nitrogen; and a collection container 16, buckled on a cavity bottom of the recovery box 13, in communication with a nitrogen gas outlet of the air separation device 14.

[0026] The application can open the first electromagnetic valve 5 when detecting that a fire condition occurs in the energy storage station, so that the liquid nitrogen in the fire extinguishing tank 4 is sprayed out through the spray head 7 to achieve efficient fire extinguishing and rapid cooling effect, thereby effectively protecting the electrical components.

[0027] In the embodiment, a pressurized gas cylinder 8 is arranged in the inner cavity of the fire extinguishing box 3, and the pressurized gas cylinder 8 is in communication with the fire extinguishing tank 4 through a second electromagnetic valve 9 and extends into the inner cavity bottom of the fire extinguishing tank 4. Figure 3 The pressurized gas cylinder 8 can increase the pressure of the liquid nitrogen in the fire extinguishing tank 4, so that the liquid nitrogen in the fire extinguishing tank 4 is prevented from being gaseous due to long-term storage, thereby affecting the normal release of the fire extinguishing effect.

[0028] In the embodiment, the fire extinguishing tank 4 and the pressurized gas cylinder 8 are elastically buckled in the inner cavity of the fire extinguishing box 3 through a buckle hoop 10. Figure 3 The buckle hoop 10 is used for buckling and installing the fire extinguishing tank 4 and the pressurized gas cylinder 8, so that the fire extinguishing tank 4 and the pressurized gas cylinder 8 can be quickly installed, and the fire extinguishing tank 4 and the pressurized gas cylinder 8 can be conveniently and regularly disassembled for maintenance.

[0029] In the embodiment, an air inlet end of the compressor 11 is located in the inner cavity of the outer cover body 1, and a filter 12 is arranged at the air inlet end and used for filtering dust particles in the inhaled mixed air. Figure 2 and 3As shown, the filter 12 is arranged to effectively filter the mixed air sucked by the compressor 11, thereby effectively reducing the difficulty of subsequent reprocessing and purification of the separated nitrogen, and effectively reducing the cost of recycling and reuse.

[0030] In this embodiment, the air separation device 14 is an SMN membrane separation nitrogen making device, the air outlet end of the compressor 11 is communicated with the air inlet end of the SMN membrane separation nitrogen making device, the nitrogen outlet end of the SMN membrane separation nitrogen making device is communicated with the collecting container 16, and the air outlet end of the SMN membrane separation nitrogen making device is communicated with the air exhaust passage 15. Refer to Figure 5 As shown, the air separation device 14 is arranged to separate the nitrogen in the mixed air sucked by the compressor 11 from other air components, effectively collect the gaseous nitrogen after extinguishing, and store it in the collecting container 16, so as to be recycled subsequently.

[0031] In this embodiment, the collecting container 16 is provided with a communication head 17, the communication head 17 is communicated with the nitrogen outlet end of the SMN membrane separation nitrogen making device through the electromagnetic valve and the pipeline, and the end of the collecting container 16 away from the communication head 17 is provided with a safety valve 18. Refer to Figure 4 As shown, the communication head 17 with the electromagnetic valve can stop collecting gas in time when the collecting container 16 is full of nitrogen, and the safety valve 18 can play a role of pressure relief when the pressure in the collecting container 16 is too large, thereby reducing the safety hazard.

[0032] In this embodiment, the inner cavity of the recovery box 13 is fixedly provided with a positioning seat 19, the positioning seat 19 abuts against one end of the collecting container 16, the collecting container 16 is fixedly installed in the recovery box 13 through the installation half hoop 20 and the fixing bolt 21, and one end of the recovery box 13 is hingedly connected with a box cover 22. Refer to Figure 4 With 5 As shown, the positioning seat 19, the installation half hoop 20 and the fixing bolt 21 are arranged, so that the collecting container 16 can be conveniently disassembled to collect the gas therein uniformly, and the empty collecting container 16 can be conveniently replaced for the next gas collection work after extinguishing.

[0033] In this embodiment, the upper end surface of the outer cover 1 is fixedly provided with a plurality of lifting rings 23. Refer to Figure 1 As shown, the lifting ring 23 is arranged, so that the entire fire extinguishing system can be conveniently lifted and arranged on the periphery of the energy storage cover, thereby effectively reducing the cost of arranging the fire extinguishing system of the energy storage station.

[0034] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify different entities or actions and do not necessarily require or imply any actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. In other words, without further restriction, reference to elements will not, without more limitations, exclude additional, unrecited elements of a process, method, article, or apparatus.

[0035] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous modifications and changes can be made to the embodiments without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A kind of energy storage station fire fighting system, comprising: Cover body, the cover body is provided with lifting lug for hoisting; Fire detection module, several fire detection modules are fixedly arranged on the cavity wall of the cover body; Fire extinguishing tank, fixedly arranged on the side cavity wall of the cover body, the inner cavity of the fire extinguishing tank is provided with multiple fire extinguishing tanks, high-pressure liquid nitrogen is filled in the fire extinguishing tank; Spray pipe, communicated with the fire extinguishing tank by first electromagnetic valve, the spray pipe is arranged with several nozzles at equal intervals; Compressor, fixedly arranged on the cavity wall of the cover body; Recovery tank, fixedly arranged on the outer side wall of the cover body, air separation device is fixedly arranged on the recovery tank, the air separation device is communicated with the air outlet of the compressor by pipeline, and the air separation device is used to separate the air inhaled by the compressor and the gasified nitrogen; Collecting container, buckle setting in the cavity bottom of the recovery tank, the collecting container is communicated with the nitrogen gas outlet of the air separation device.

2. An energy storage station fire protection system according to claim 1, wherein: The inner cavity of the fire extinguishing tank is provided with a pressurized gas cylinder, which is communicated with the fire extinguishing tank by the second electromagnetic valve and extends into the inner cavity bottom.

3. An energy storage station fire protection system according to claim 2, wherein: The fire extinguishing tank and pressurized gas cylinder are arranged in the inner cavity of the fire extinguishing tank by elastic buckle of buckle hoop.

4. An energy storage station fire protection system according to claim 1, wherein: The air inlet end of the compressor is located in the inner cavity of the cover body, and a filter is arranged at the air inlet end, which is used to filter the dust particles of the inhaled mixed air.

5. An energy storage station fire protection system according to any of claims 1-4, characterized in that: The air separation device adopts SMN membrane separation nitrogen device, the air outlet end of the compressor is communicated with the air inlet end of the SMN membrane separation nitrogen device, the nitrogen gas outlet end of the SMN membrane separation nitrogen device is communicated with the collecting container, and the air outlet end of the SMN membrane separation nitrogen device is communicated with the air exhaust channel.

6. An energy storage station fire protection system according to claim 5, wherein: The collecting container is provided with a communication head, the communication head is communicated with the nitrogen gas outlet end of the SMN membrane separation nitrogen device by electromagnetic valve and pipeline, and the end of the collecting container away from the communication head is provided with a safety valve.

7. An energy storage station fire protection system according to claim 6, wherein: The inner cavity of the recovery tank is fixedly provided with a positioning seat, the positioning seat abuts with one end of the collecting container, the collecting container is fixedly installed in the recovery tank by mounting half hoop and cooperating with fixing bolt, and the one end of the recovery tank is hinged with a tank cover.

8. An energy storage station fire protection system according to claim 5, wherein: The upper end surface of the cover body is fixedly provided with several lifting lugs.

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