CN215938841U - Energy storage power station continuously cools down drives oxygen firebreak device - Google Patents

Energy storage power station continuously cools down drives oxygen firebreak device Download PDF

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CN215938841U
CN215938841U CN202121585989.9U CN202121585989U CN215938841U CN 215938841 U CN215938841 U CN 215938841U CN 202121585989 U CN202121585989 U CN 202121585989U CN 215938841 U CN215938841 U CN 215938841U
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energy storage
power station
storage power
box body
station box
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尹小林
黄波
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Changsha Zichen Technology Development Co Ltd
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Changsha Zichen Technology Development Co Ltd
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Abstract

An energy storage power station continuous cooling oxygen-expelling fire-proof device comprises an energy storage power station box body and CO2Supply mechanism, CO connected to it2Sustained release mechanism and CO2Discharge means of said CO2The supply mechanism is arranged inside or outside the energy storage power station box body, and the CO is2The slow release mechanism is arranged in the energy storage power station box bodyEach layer of battery pack space and/or each spaced battery pack space and/or the inner bottom and/or inner side wall of the energy storage power station box body, and the CO2The discharging device is communicated with the interior of the energy storage power station box body and is arranged at the top or the side part of the energy storage power station box body. The utility model directly utilizes CO2Absorbing heat, gasifying, cooling, expelling oxygen and using pure CO2Each battery pack in the filling coating compartment is flameout and fireproof, the technical principle is simple and easy to implement, the potential safety hazard of fire is naturally eliminated, the spontaneous combustion and explosion accidents of the energy storage power station can be prevented, and the coating material is non-toxic and free of secondary pollution.

Description

Energy storage power station continuously cools down drives oxygen firebreak device
Technical Field
The utility model relates to a fire fighting device, in particular to a continuous cooling, oxygen-expelling and fire-preventing device for an energy storage power station.
Background
With the rapid development of distributed energy and the improvement of the requirement on the power supply reliability, the development of the energy storage technology is very rapid, the energy storage technology has a great position in the field of transmission and distribution, and the energy storage technology becomes one of the peak clipping and valley filling adjusting means of the power distribution network. At present, a plurality of types of energy storage power stations such as lithium ion and lithium iron phosphate batteries are built at home and abroad, but the development of the fire protection technology of the matched energy storage power station is not up to the pace. The battery discharges with large current for a long time, the battery is overcharged to cause the temperature of the battery pack to rise, the outside is impacted, the lightning short circuit, the open fire, the ventilation is not smooth, the fan is damaged and other accidents all affect the safe operation of the equipment, the danger of fire explosion is possible to happen, and if the fire prevention and fire fighting measures are not in place, the fire can be caused. The energy storage power station needs to be matched with a high-performance and high-reliability energy storage converter (PCS), the energy storage converter can generate huge heat in the rectifying or inverting process, and if the heat cannot be dissipated in time, a fire disaster is easily caused. Therefore, effective fire prevention measures must be considered for the construction and operation of energy storage power stations.
The root cause for inducing the combustion and explosion of the lithium ion battery in the energy storage power station is that the battery is out of control due to thermal runaway, because the insulation between the anode and the cathode inside the lithium ion battery depends on the diaphragm, if the diaphragm is damaged, short circuit occurs, the battery continuously releases heat, and finally spontaneous combustion is caused, the influence of thermal diffusion on the peripheral battery pack is easy to destabilize, and then the battery is combusted and decomposed to generate combustible gas and oxygen and combustible electrolyte can be combusted with higher speed so as to cause explosion.
To the problem that exists, CN201720882378.8 has announced an energy storage power station early warning and fire control system, implements respectively to the group battery in the energy storage power station and monitors, nevertheless has following problem: firstly, the fire extinguishing agent of the fire extinguishing system adopts water, so that the peripheral battery pack is easily subjected to negative effects when the battery pack is sprayed, cooled and extinguished, and the battery pack is easily damaged; secondly, when the fire-fighting water is sprayed, the energy storage system of the high-voltage electrified body and the circuit thereof are easy to be short-circuited, so that a fire disaster is induced or an accident is enlarged; thirdly, a drainage pipeline is required to be arranged, and secondary pollution is easy to generate if waste water generated by the spraying thermal runaway ignition battery pack is not effectively treated. CN202010977105.8 has disclosed a fire extinguishing system that triggers certainly for energy memory, mainly including setting up sampling pipe and the fire extinguishing pipe at energy storage station container top, adopt the high heat of sensitivity to release ion detector and be used for the fire control of triggering certainly, nevertheless the end cap with trigger the fire control shower nozzle between be full of the wax stone certainly, still need melt the wax stone earlier when the group battery is on fire, the end cap whereabouts just blowout fire extinguishing gas, the response time overlength of putting out a fire. CN 202010419399.2 discloses a container energy storage system fire control unit and a control method thereof, which mainly comprises a gas fire extinguishing module, a liquid fire extinguishing module, a detection module and a control module, wherein the fire extinguishing module is provided with a plurality of fire extinguishing units which are in one-to-one correspondence with battery clusters, but when a liquid fire extinguishing agent is applied, the battery pack is sprayed, cooled and extinguished, and irreversible damage to the peripheral battery pack is easily caused.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to overcome the defects in the prior art, and provide a method which can continuously absorb the heat released by the dissipation electric energy in the charging and discharging process of the battery pack with high efficiency or the heat energy generated by the short-circuit temperature rise of the battery, quickly absorb the heat and reduce the temperature to maintain the relatively stable temperature in each storage battery space in the energy storage power station, and fully expel the oxygen in each storage battery space to prevent the ignition combustion, so that the storage battery can be controlled to be approximately pure CO at any time2And the energy storage power station in atmosphere protection is continuously cooled and set for fire prevention.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a continuous cooling, oxygen-expelling and fire-proof device for energy storage power station comprises CO2Oxygen supply, release, cooling and driving device, energy storage power station box and gaseous CO2Discharge means, said CO2The oxygen supplying, releasing, cooling and driving device comprises CO2A supply mechanism,CO communicated with it2Slow release mechanism of said CO2The supply mechanism is arranged inside or outside the energy storage power station box body, and the CO is2The slow release mechanism is arranged in each layer of battery pack space and/or each interval battery pack space in the energy storage power station box body and/or the bottom and/or the inner side wall in the energy storage power station box body, and the gaseous CO2The discharging device is communicated with the interior of the energy storage power station box body and is arranged at the top or the side part of the energy storage power station box body.
Further, the CO is2The supply means comprising solid CO2Supply means and liquid CO2A supply mechanism.
Further, the CO is2The slow release mechanism comprises solid CO2Slow release mechanism and liquid CO2Slow release mechanism in which CO is in solid state2Slow release mechanism and solid CO2Supply mechanism connected to liquid CO2Slow release mechanism and liquid CO2The supply mechanisms are communicated.
Further, the solid CO2Refers to solid CO in granular or powder form2Or solid CO in a box2Or coated slow-release solid CO2。
Furthermore, the energy storage power station box body is provided with a temperature and pressure monitoring mechanism and/or a gas analysis monitoring mechanism and/or an intelligent analysis control system and/or an automatic alarm controller.
Further, solid or liquid CO is arranged in the energy storage power station box body2CO produced by endothermic gasification2Passing the gas through gaseous CO2The discharging device discharges the CO in a centralized way2The gas can be made into dry ice or liquid CO after being cooled and compressed2And (4) recycling.
The utility model has the beneficial effects that:
(1) the utility model directly utilizes solid or liquid CO2Absorbing heat, gasifying, cooling, expelling oxygen and using pure CO2Each battery pack in the filling coating compartment is flameout and fireproof, the technical principle is simple and easy to implement, the potential safety hazard of fire is naturally eliminated, the spontaneous combustion and explosion accidents of the energy storage power station can be prevented, and the coating material is non-toxic and free of secondary pollution.
(2) The utility model can eliminate the defect that the fire-fighting technology of the traditional energy storage power station causes damage to the battery pack, can independently cool, greatly reduce the self-consumption energy loss of the energy storage battery pack, prolong the service life of the energy storage battery pack and effectively reduce the maintenance cost of the energy storage power station. Is beneficial to energy conservation and emission reduction and green environmental protection.
(3) The method is beneficial to full-intelligent automatic management of the energy storage power station, can promote industrial production and open type arrangement or open-air arrangement of the energy storage power station, reduces the construction period and the construction cost, and has great significance for promoting the construction of green energy in China and improving the energy storage structure in China.
Drawings
FIG. 1 is a top view of example 1 of the present invention;
FIG. 2 is a front view of embodiment 1 of the present invention;
FIG. 3 is a top view of example 2 of the present invention;
FIG. 4 is a front view of embodiment 2 of the present invention;
FIG. 5 is a top view of example 3 of the present invention;
FIG. 6 is a front view of embodiment 3 of the present invention;
FIG. 7 is a top view of example 4 of the present invention;
fig. 8 is a front view of embodiment 5 of the present invention.
Detailed Description
The utility model is described in further detail below with reference to the figures and the embodiments.
Example 1
Referring to fig. 1-2, the present embodiment mainly includes a dry ice releasing, cooling and oxygen driving device 1, and gaseous CO2The dry ice supplying, releasing, cooling and oxygen driving device 1 mainly comprises a dry ice supply mechanism 101 and a dry ice slow-release mechanism 102, the dry ice supply mechanism 101 is arranged at the periphery of the top of the energy storage power station box body 3 in groups of 6, the dry ice slow-release mechanism 102 is arranged in the space of the inner side wall of the energy storage power station box body 3, the dry ice slow-release mechanism 102 mainly comprises a plurality of dry ice slow-release pipelines, openings are arranged on the pipelines, and gas state CO is supplied to the dry ice slow-release pipelines2Escape, dry ice supply means 101 andthe dry ice slow release mechanism 102 is communicated with gaseous CO2The discharge device 2 is arranged on the side part of the energy storage power station box body 3 and is communicated with the energy storage power station box body 3 through a pipeline;
the dry ice supply mechanism 101 stores dry ice and supplies the dry ice required by the dry ice slow release mechanism 102, and after the dry ice is released by the dry ice slow release mechanism 102 arranged in the energy storage power station box body 3, the dry ice absorbs heat and is directly gasified into gaseous CO2Gaseous CO2Slowly escapes from the opening of the side wall of the pipeline of the dry ice slow-release mechanism 102, and simultaneously drives out most of oxygen and nitrogen in the box body 3 of the energy storage power station, so that all battery packs in the box body are in nearly pure CO2In the gas protection, the gasification of the dry ice absorbs a large amount of heat to maintain the controllable temperature range and the fire extinguishing atmosphere set in the box body, and the excessive CO in the energy storage power station box 32Passing the gas through gaseous CO2Discharged by the discharge device 2, wherein the dry ice refers to granular solid CO2。
Example 2
Referring to fig. 3 to 4, the present embodiment is different from embodiment 1 in that: a monitoring and control system 4 is also provided. The monitoring control system 4 comprises a temperature and pressure monitoring mechanism 401, a gas analysis monitoring mechanism 402 and an intelligent analysis control system 403, wherein the temperature and pressure monitoring mechanism 401, the gas analysis monitoring mechanism 402 and the intelligent analysis control system 403 are arranged in the middle of the inner side of the box body of the energy storage power station.
Monitoring control system 4 locate energy storage power station box 3 battery cabinet inside wall middle part, warm-pressing monitoring mechanism 401 include temperature measurement pipe and pressure-measuring pipe, the temperature measurement pipe be used for measuring the real-time temperature in the 3 battery cabinets of energy storage power station box, the pressure-measuring pipe is used for monitoring the real-time pressure of the 3 battery cabinets of energy storage power station box, the upper end of pressure-measuring pipe is connected with the manometer, temperature measurement pipe and pressure-measuring pipe adjacent arrangement, gas analysis monitoring mechanism 402 and warm-pressing monitoring mechanism 401 interval arrangement for the gas composition content in the 3 battery cabinets of monitoring energy storage power station box, intelligent analysis control system 403 locate battery cabinet middle part end, be used for connecting temperature and pressure monitoring data and gas analysis monitoring data that gather to intelligent analysis and regulation control.
The dry ice supply mechanisms 101 in the embodiment are arranged in 4 groups at the centers of the outer edges of the top of the energy storage power station box body 3, and the dry ice slow release mechanisms 102 are distributed in the inner wall space of the energy storage power station box body in the energy storage power station box body 3 in a multi-path arrow shape.
Said gaseous CO2The discharging device 2 is arranged at the top side end of the energy storage power station box body 3.
The rest is the same as example 1.
Example 3
Referring to fig. 5-6, the present embodiment mainly includes a dry ice releasing, cooling and oxygen-expelling device 1, and gaseous CO2The device comprises an exhaust device 2 and an energy storage power station box body 3, wherein the dry ice releasing, cooling and oxygen driving device 1 mainly comprises a dry ice supply mechanism 101 and a dry ice slow release mechanism 102, the dry ice supply mechanism 101 is arranged on the outer side of the top of the energy storage power station box body 3 in a group 2, the dry ice slow release mechanism 102 is arranged in the space on the inner side wall of the energy storage power station box body 3 and is provided with three layers from top to bottom, the dry ice supply mechanism 101 is connected with the dry ice slow release mechanism 102, and the gaseous CO is discharged from the energy storage power station box body 32The discharging device 2 is arranged at the top of the energy storage power station box body 3 and is communicated with the inner space of the box body through a pipeline.
Dry ice as used in this example refers to powdered solid CO2The dry ice supply mechanism 101 stores dry ice and supplies the dry ice releasing mechanism 102 with powdered dry ice, and gaseous CO is used2Part of the exhaust gas discharged by the exhaust device 2 is CO2Mainly used gas is taken as a power source of the powdery dry ice in the conveying pipeline, and the powdery dry ice and CO of the dry ice slow-release mechanism 102 arranged in the energy storage power station box body 32The gas flows to each outlet to be released, the powdery dry ice slowly escapes from the open hole on the side wall of the dry ice slow-release mechanism 102, and the heat is absorbed to ensure that the dry ice is directly gasified into gaseous CO2Simultaneously, all oxygen and nitrogen in the energy storage power station box body 3 are removed, so that all battery packs in the box body are in pure CO2In the gas protection, the gasification of the dry ice absorbs a large amount of heat to maintain the controllable temperature range and the fire extinguishing atmosphere set in the box body, and the excessive CO in the box body 3 of the energy storage power station2Passing the gas through gaseous CO2The discharge means 2 discharges.
Example 4
Referring to fig. 7, the present embodiment is different from embodiment 3 in that: the dry ice supply mechanism 101 is arranged on the outer side of the top of the energy storage power station box body 3 in groups of 5, the dry ice slow release mechanism 102 is distributed in gaps among the battery cabinet groups, and the monitoring control system 4 is further arranged in the embodiment.
The monitoring control system 4 comprises a temperature and pressure monitoring mechanism 401, a gas analysis monitoring mechanism 402 and an intelligent analysis control system 403, wherein the temperature and pressure monitoring mechanism 401, the gas analysis monitoring mechanism 402 and the intelligent analysis control system 403 are arranged at the middle upper part of the inner side of the energy storage power station box body and are used for monitoring the abnormal condition of the battery pack during operation.
The rest is the same as example 3.
Example 5
Referring to fig. 8, the present embodiment is different from embodiment 3 in that: the cooling oxygen-removing fireproof raw material adopts liquid CO with better gasification heat absorption capacity2Mainly comprising gaseous CO2Discharging device 2, energy storage power station box 3, monitoring control system 4 and liquid CO2Oxygen supplying, cooling and driving device 5 and liquid CO2A control valve 6. The liquid CO2The temperature-reducing oxygen-driving device 5 mainly comprises liquid CO2Supply mechanism 501, liquid CO2A release mechanism 502.
Liquid CO2The supply mechanism 501 stores liquid CO2And supplying liquid CO2Liquid CO required for Release of 5022Liquid CO in the tank 3 of the energy storage power station2Release mechanism 502 releases CO2Absorbing heat to make liquid CO2Direct gasification to gaseous CO2Simultaneously, most of oxygen and nitrogen in the box body 3 of the energy storage power station are removed, so that all battery packs in the box body are in the state of nearly pure CO2In gas shield, liquid CO2The gasification absorbed heat maintains the set controllable temperature range and the fire extinguishing atmosphere in the box body, and excessive CO is contained in the box bodies 3 of the plurality of energy storage power stations2The gas is intensively conveyed to gaseous CO through a pipeline2The discharge means 2 discharges.
The rest is the same as example 3.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are also within the scope of the present invention provided they are within the scope of the claims of the present invention and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.

Claims (4)

1. The utility model provides an energy storage power station lasts cooling oxygen drive firebreak device which characterized in that: comprises an energy storage power station box body and CO2Supply mechanism, CO connected to it2Sustained release mechanism and CO2Discharge means of said CO2The supply mechanism is arranged inside or outside the energy storage power station box body, and the CO is2The slow release mechanism is arranged in each layer of battery pack space and/or each interval battery pack space in the energy storage power station box body and/or the bottom and/or the inner side wall in the energy storage power station box body, and the CO is2The discharging device is communicated with the interior of the energy storage power station box body and is arranged at the top or the side part of the energy storage power station box body.
2. The energy storage power station of claim 1 continuous cooling, oxygen scavenging and fire preventing device, characterized in that: the CO is2The supply means comprising solid CO2Supply means and liquid CO2A supply mechanism.
3. The energy storage power station of claim 2 wherein the means for continuously cooling, purging oxygen and preventing fires is characterized by: the CO is2The slow release mechanism comprises solid CO2Slow release mechanism and liquid CO2Slow release mechanism in which CO is in solid state2Slow release mechanism and solid CO2Supply mechanism connected to liquid CO2Slow release mechanism and liquid CO2The supply mechanisms are communicated.
4. The energy storage power station continuous cooling oxygen drive fire protection device of any one of claims 1-3, characterized in that: the energy storage power station box body is provided with a temperature and pressure monitoring mechanism and/or a gas analysis monitoring mechanism and/or an intelligent analysis control system and/or an automatic alarm controller.
CN202121585989.9U 2021-07-13 2021-07-13 Energy storage power station continuously cools down drives oxygen firebreak device Active CN215938841U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121585989.9U CN215938841U (en) 2021-07-13 2021-07-13 Energy storage power station continuously cools down drives oxygen firebreak device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121585989.9U CN215938841U (en) 2021-07-13 2021-07-13 Energy storage power station continuously cools down drives oxygen firebreak device

Publications (1)

Publication Number Publication Date
CN215938841U true CN215938841U (en) 2022-03-04

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