Fire extinguishing and explosion suppression device and battery energy storage system

Abstract

The invention relates to a fire extinguishing and explosion suppression device and a battery energy storage system. The fire extinguishing and explosion suppression device comprises a fire extinguishing agent storage device used for containing a fire extinguishing agent, an explosion suppressant storage device used for containing an explosion suppressant, a driving agent storage device used for containing a driving agent and a refrigerating machine, and the fire extinguishing agent storage device is connected with spot spraying control equipment through a fire extinguishing agent pipeline. The explosion suppressant storage device is connected with the spot spraying control equipment through an explosion suppressant pipeline, and the driving agent storage device is connected with the fire extinguishing agent storage device through a driving agent pipeline; the refrigerating machine is connected with the fire extinguishing agent storage device and the control panel, and the refrigerating machine is used for liquefying the fire extinguishing agent in the fire extinguishing agent storage device; and the spot spraying control equipment is used for outputting the fire extinguishing agent and the explosion suppressant which are mixed. By introducing the fire extinguishing agent and the explosion suppressant, explosion suppression can be achieved while fire extinguishing is conducted, the evaporation capacity of the fire extinguishing agent can be reduced by introducing the refrigerating machine, and normal-pressure low-power-consumption storage of the fire extinguishing agent is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage, and in particular to a fire extinguishing and explosion suppression device and a battery energy storage system. Background Art

[0002] A battery energy storage system is a device used to store electrical energy, usually consisting of a battery pack, a battery management system, and a power distribution system. The battery energy storage system can store electrical energy for emergency use, such as in the event of a power outage or insufficient energy supply. In addition, the battery energy storage system can also release the stored electrical energy during peak load periods to regulate the load on the grid. Battery energy storage systems are also widely used in areas such as renewable energy generation and electric vehicles.

[0003] However, the battery energy storage system may have heat accumulation during use, which may lead to fire. In addition, the battery energy storage system is very easy to reignite during the process of unloading, and explode in certain scenarios. Therefore, there is an urgent need for a system that can extinguish fires and suppress explosions when a fire occurs in the battery energy storage system. Summary of the invention

[0004] Based on this, it is necessary to provide a fire extinguishing and explosion suppression device and a battery energy storage system that can extinguish fire and suppress explosion when a fire occurs in a battery energy storage system.

[0005] In a first aspect, the present application provides a fire extinguishing and explosion suppression device, comprising:

[0006] A fire extinguishing agent storage device, used for containing fire extinguishing agent, wherein the fire extinguishing agent storage device is connected to the point spraying control device through a fire extinguishing agent pipeline;

[0007] An explosion suppressant storage device, used for containing explosion suppressants, wherein the explosion suppressant storage device is connected to the point spray control device through an explosion suppressant pipeline;

[0008] An actuating agent storage device, used for containing the actuating agent, and the actuating agent storage device is connected to the fire extinguishing agent storage device through an actuating agent pipeline;

[0009] A refrigerator, the refrigerator being connected to the fire extinguishing agent storage device and the control panel respectively, and the refrigerator being used to liquefy the fire extinguishing agent in the fire extinguishing agent storage device;

[0010] The point spray control device is used to output the mixed fire extinguishing agent and the explosion suppression agent.

[0011] In one embodiment, the fire extinguishing agent storage device includes a double-layer tank body, and a vacuum is drawn between the double-layer tank bodies; an insulation layer is included between the inner cylinder bottom and the outer cylinder bottom of the double-layer tank body, and the insulation layer adopts a slightly positive pressure.

[0012] In one embodiment, the fire extinguishing agent storage device further includes:

[0013] a siphon tube, the siphon tube being inserted into the fire extinguishing agent storage device;

[0014] A refrigerator interface, one end of which is fixed to the fire extinguishing agent storage device and the other end of which is connected to the refrigerator;

[0015] A liquid outlet container valve is provided on the fire extinguishing agent pipeline and is used to control the on-off of the fire extinguishing agent pipeline.

[0016] In one of the embodiments, the fire extinguishing agent storage device reduces the evaporation rate by at least one of the following settings: the siphon is locally thinned, the head size of the fire extinguishing agent storage device is reduced, the distance between the inner tank body and the outer tank body of the double-layer tank body is increased, and the metal tube of the liquid level gauge at the refrigerator interface is physically insulated from the refrigerator interface.

[0017] In one of the embodiments, the fire extinguishing agent storage device is provided with a secondary safety valve, wherein the set pressures of the first-stage safety valve and the second-stage safety valve are different.

[0018] In one embodiment, the refrigerator is a dual-compressor cascade hybrid refrigerator, and the refrigerator includes a multi-channel temperature module probe; the refrigerator is used to dynamically adjust the operation of the compressor according to the temperature collected by the multi-channel temperature module probe.

[0019] In one embodiment, it also includes:

[0020] A controller, wherein the controller is used to obtain a pressure detection result in the fire extinguishing agent storage device; when the pressure corresponding to the pressure detection result is greater than or equal to a first set pressure value, control the refrigerator to liquefy the fire extinguishing agent in the fire extinguishing agent storage device; when the pressure corresponding to the pressure detection result is less than a second set pressure value, shut down the refrigerator.

[0021] In one of the embodiments, a driving gas container valve is provided on the driving agent pipeline; the controller is also used to control the driving gas container valve and the liquid outlet container valve to open simultaneously, so that the driving agent enters the fire extinguishing agent storage device, and the fire extinguishing agent is output to the point spraying control equipment.

[0022] In one embodiment, the explosion suppressant storage device includes a primary safety valve, which is disposed at the top of the explosion suppressant storage device. When the pressure inside the explosion suppressant storage device is greater than an internal pressure threshold, the pressure is released through the primary safety valve.

[0023] In a second aspect, the present application also provides a battery energy storage system, comprising the fire extinguishing and explosion suppression device in any one of the above-mentioned embodiments.

[0024] The above-mentioned fire extinguishing and explosion suppression device and battery energy storage system include a fire extinguishing agent storage device for holding fire extinguishing agent, an explosion suppression agent storage device for holding explosion suppression agent, a driving agent storage device for holding driving agent, and a refrigerator. The fire extinguishing agent storage device is connected to the point spray control device through a fire extinguishing agent pipeline, the explosion suppression agent storage device is connected to the point spray control device through an explosion suppression agent pipeline, and the driving agent storage device is connected to the fire extinguishing agent storage device through a driving agent pipeline; the refrigerator is connected to the fire extinguishing agent storage device and the control panel respectively, and the refrigerator is used to liquefy the fire extinguishing agent in the fire extinguishing agent storage device; the point spray control device is used to output the mixed fire extinguishing agent and the explosion suppression agent, so that by introducing the fire extinguishing agent and the explosion suppression agent, explosion suppression can be achieved while extinguishing the fire, and the introduction of the refrigerator can reduce the evaporation amount of the fire extinguishing agent, thereby realizing the normal pressure and low power consumption storage of the fire extinguishing agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a side view of a fire extinguishing and explosion suppression device according to an embodiment;

[0026] FIG2 is a front view of the fire extinguishing and explosion suppression device in FIG1 ;

[0027] FIG3 is a schematic structural diagram of the fire extinguishing agent storage device in FIG1 ;

[0028] FIG4 is a schematic diagram of the structure of the fire extinguishing agent storage device and the driving agent storage device in FIG1;

[0029] FIG. 5 is a schematic structural diagram of the explosion suppressant storage device in FIG. 1 .

[0030] Description of reference numerals:

[0031] 100 fire extinguishing agent storage device, 110 liquid outlet container valve, 120 siphon, 130 refrigerator interface, 131 liquid level gauge metal tube, 132 pressure sensor, 200 explosion suppression agent storage device, 210 gas outlet container valve, 300 driving agent storage device, 310 driving gas container valve, 320 driving agent pipeline, 400 spray control equipment, 410 nozzle, 420 adapter, 430 pressure reducing valve, 440 bursting disc, 450 solenoid valve, 460 hose, 500 control system, 600 compartment, 700 refrigerator. DETAILED DESCRIPTION

[0032] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0033] As shown in Figures 1 and 2, Figure 1 is a side view of a fire extinguishing and explosion suppression device of an embodiment; Figure 2 is a front view of the fire extinguishing and explosion suppression device in Figure 1, the present application provides a fire extinguishing and explosion suppression device, including: a fire extinguishing agent storage device 100 for holding a fire extinguishing agent, an explosion suppressing agent storage device 200 for holding an explosion suppressing agent, a driving agent storage device for holding a driving agent, a point spray control device 400 and a refrigerator 700.

[0034] The fire extinguishing agent storage device 100 for holding the fire extinguishing agent, the explosion suppressant storage device 200 for holding the explosion suppressant, the driving agent storage device for holding the driving agent, the spot spraying control device 400 and the refrigerator 700 are all located in the compartment 600, and the output port of the spot spraying control device 400 extends out of the compartment 600 to output the mixed fire extinguishing agent and explosion suppressant.

[0035] The fire extinguishing agent storage device 100 includes a liquid outlet container valve 110, the explosion suppressant storage device 200 includes a gas outlet container valve 210, and the driving agent storage device includes a driving gas container valve 310. The fire extinguishing agent storage device 100 is connected to the point spraying control device 400 through the fire extinguishing agent pipeline, and the liquid outlet container valve 110 controls the on-off of the fire extinguishing agent pipeline; the explosion suppressant storage device 200 is connected to the point spraying control device 400 through the explosion suppressant pipeline, and the gas outlet container valve 210 controls the on-off of the explosion suppressant pipeline; the driving agent storage device is connected to the fire extinguishing agent storage device 100 through the driving agent pipeline 320, and the driving gas container valve 310 controls the on-off of the driving agent pipeline 320.

[0036] The fire extinguishing agent storage device 100 is used to store fire extinguishing agent, which may be liquid nitrogen. The explosion suppressant storage device 200 is used to store explosion suppressant, which may be carbon dioxide. The driving agent storage device is used to store driving agent, which may be nitrogen.

[0037] The refrigerator 700 is connected to the fire extinguishing agent storage device 100 and the control panel respectively, and the refrigerator 700 is used to liquefy the fire extinguishing agent in the fire extinguishing agent storage device 100 .

[0038] The fire extinguishing and explosion suppression device also includes a control system 500, which includes a control panel, a controller, a temperature sensing element, a low-temperature solenoid valve and various types of sensors, etc., wherein the controller is integrated on the control panel and can obtain environmental information collected by various types of sensors, including temperature, smoke, and combustible gas, etc., and then perform fire judgment based on the collected environmental information. If a fire occurs, the above-mentioned liquid outlet container valve 110, drive gas container valve 310, and gas outlet container valve 210 are controlled to open, so that the spray control device 400 outputs the mixed fire extinguishing agent and explosion suppression agent.

[0039] The control system 500 is externally connected to a power supply to enable the fire extinguishing and explosion suppression system to operate. The control system 500 can be started automatically as described in the previous paragraph, or can be started manually by using a control button on the control panel.

[0040] The fire extinguishing and explosion suppression device in the above embodiment includes a fire extinguishing agent storage device 100 for holding a fire extinguishing agent, an explosion suppression agent storage device 200 for holding an explosion suppression agent, a driving agent storage device for holding a driving agent, and a refrigerator 700. The fire extinguishing agent storage device 100 is connected to the point spraying control device 400 through a fire extinguishing agent pipeline, the explosion suppression agent storage device 200 is connected to the point spraying control device 400 through an explosion suppression agent pipeline, and the driving agent storage device is connected to the fire extinguishing agent storage device through a driving agent pipeline 320. The device 100 is connected; the refrigerator 700 is connected to the fire extinguishing agent storage device 100 and the control panel respectively, and the refrigerator 700 is used to liquefy the fire extinguishing agent in the fire extinguishing agent storage device 100; the spot spray control device 400 is used to output the mixed fire extinguishing agent and the explosion suppressant, so that by introducing the fire extinguishing agent and the explosion suppressant, explosion suppression can be achieved while extinguishing the fire, and the introduction of the refrigerator 700 can reduce the evaporation amount of the fire extinguishing agent, thereby realizing the normal pressure and low power consumption storage of the fire extinguishing agent.

[0041] In order to reduce the evaporation amount of liquid nitrogen in the above-mentioned fire extinguishing and explosion suppression device, the fire extinguishing agent storage device 100, the refrigerator 700, and the driving agent storage device are improved in the present application, so that the liquid nitrogen fire extinguishing and explosion suppression device can be stored stably at ultra-low temperature for a long time, and the annual evaporation rate of liquid nitrogen storage can be reduced by 5%, thereby solving the technical problem of reliable storage of liquid nitrogen fire extinguishing agent at normal pressure and low power consumption.

[0042] In one optional embodiment, the fire extinguishing agent storage device 100 includes a double-layer tank body, and a vacuum is drawn between the double-layer tank bodies; an insulation layer is included between the inner cylinder bottom and the outer cylinder bottom of the double-layer tank body, and the insulation layer adopts a slightly positive pressure.

[0043] In one of the optional embodiments, the fire extinguishing agent storage device 100 also includes: a siphon 120, a refrigerator interface 130 and a liquid outlet container valve 110, wherein the siphon 120 is inserted into the fire extinguishing agent storage device 100, one end of the refrigerator interface 130 is fixed to the fire extinguishing agent storage device 100, and the other end is connected to the refrigerator 700, and the liquid outlet container valve 110 is arranged in the fire extinguishing agent pipeline for controlling the on-off of the fire extinguishing agent pipeline.

[0044] In one of the optional embodiments, the fire extinguishing agent storage device 100 reduces the evaporation rate by at least one of the following settings: the siphon tube 120 is locally thinned, the head size of the fire extinguishing agent storage device 100 is reduced, the distance between the inner tank body and the outer tank body of the double-layer tank body is increased, and the liquid level gauge metal tube 131 at the refrigerator interface 130 is physically insulated from the refrigerator interface 130.

[0045] As shown in FIG3 , in order to address the technical bottleneck of large evaporation volume of liquid nitrogen during long-term ultra-low temperature storage, the general fire extinguishing agent storage device 100 is optimized and modified so that the fire extinguishing agent storage device 100 can achieve a daily evaporation rate of less than 5% without refrigeration, thereby ensuring long-term stable storage and use of nitrogen.

[0046] The fire extinguishing agent storage device 100 for storing liquid nitrogen can be a cryogenic storage tank, and due to its special working environment, the working temperature is -196°C. Optionally, in the present application, the fire extinguishing agent storage device 100 includes a double-layer tank body, and the double-layer tank body is vacuumed; an insulation layer is included between the inner cylinder bottom and the outer cylinder bottom of the double-layer tank body, and the insulation layer adopts a slightly positive pressure.

[0047] Optionally, the tank body material of the double-layer tank body is stainless steel, such as 06Cr19Ni10 stainless steel, and the double-layer tank is heat-insulated by vacuuming. Specifically, the tank body is divided into two layers, the inner tank body and the outer tank body, and the middle layer is isolated from the atmosphere by vacuuming insulation, thereby avoiding the influence of atmospheric pressure or temperature changes and the entry of humid air into the tank body. Foam glass bricks are used for insulation between the inner cylinder bottom and the outer cylinder bottom of the double-layer tank body. The foam glass brick insulation layer adopts a slightly positive pressure, and the foam glass brick insulation layer material is isolated from the atmosphere, thereby avoiding the influence of atmospheric pressure or temperature changes and the entry of humid air into the insulation layer between the inner and outer tanks, increasing the service life of the insulation material, and effectively ensuring and improving the use effect of the insulation material.

[0048] In addition, the fire extinguishing agent storage device 100 is optimized and improved in combination with the physical and chemical properties of liquid nitrogen, as well as the application characteristics such as storage, maintenance, driving and conveying, and spraying. The siphon tube 120 and the refrigerator interface 130 are added in the design. Since the addition of the siphon tube 120 and the refrigerator interface 130 will lead to an increase in evaporation, the problem of increased evaporation rate caused by adding the siphon tube 120 and the refrigerator interface 130 is reduced by at least one of the following methods: partially thinning the siphon tube 120, physically insulating and isolating the metal tube 131 of the liquid level gauge from the external interface, reducing the size of the head of the fire extinguishing agent storage device 100, and increasing the distance between the inner tank and the outer tank. Through these measures, the daily evaporation rate of the fire extinguishing agent storage device 100 without refrigeration can be reduced to less than 5%.

[0049] In some optional embodiments, the fire extinguishing agent storage device 100 is provided with a secondary safety valve, wherein the set pressures of the first-stage safety valve and the second-stage safety valve are different.

[0050] Specifically, the fire extinguishing agent storage device 100 storing liquid nitrogen is connected to the heat-insulating refrigerator 700; the refrigerator 700 re-liquefies the nitrogen gas vaporized due to the temperature rise in the fire extinguishing agent storage device 100 and keeps it at a low temperature and stores it in the fire extinguishing agent storage device 100, and keeps the fire extinguishing agent storage device 100 at a constant low temperature, so that it is not easy to vaporize and leak. Two safety valves are set on the fire extinguishing agent storage device 100, and the safety valves have different set pressures, 2.76MPa and 3.62MPa, respectively, to protect the liquid nitrogen storage tank in two levels.

[0051] In some optional embodiments, the refrigerator 700 is a dual-compressor cascade hybrid refrigerator 700, and the refrigerator 700 includes a multi-channel temperature module probe; the refrigerator 700 is used to dynamically adjust the operation of the compressor according to the temperature collected by the multi-channel temperature module probe.

[0052] The dual compressor cascade hybrid refrigerator 700 uses two built-in cascade compressors for refrigeration, and the cold head can achieve a minimum temperature of -193°C or even lower. The dual compressor cascade hybrid refrigerator 700 has the advantages of easy operation, fast refrigeration, low energy consumption, low noise, environmental protection and energy saving, high reliability, and long service life. This type of refrigerator 700 adopts the integrated structure design of the dual machine cascade mixed working fluid throttling refrigeration principle, long life design, and a service life of more than 10 years.

[0053] Compared with the traditional dual-machine cascade hybrid refrigerator 700, the present application dynamically adjusts the cooling capacity of the refrigerator 700 by optimizing the overall layout of the heat sink and adding intelligent numerical control acquisition. A multi-channel temperature module probe is added inside the refrigerator 700 to comprehensively detect the ambient temperature, the hot end temperature of the high and low temperature compressor radiator, the separator temperature, and the compressor exhaust temperature. The working state of each compressor is adjusted according to the detection results, and the refrigeration energy of the pre-cooling compressor is dynamically adjusted to speed up the refrigeration speed and achieve refrigeration stability in high and low temperature environments.

[0054] In summary, the refrigerator 700 has the characteristics of easy installation and wide application range. The refrigerator 700 is used in conjunction with the fire extinguishing agent storage device 100 and is installed in the gas phase part of the fire extinguishing agent storage device 100. The cooling capacity of the cold head is much higher than the evaporation heat of the fire extinguishing agent storage device 100, so the heat conducted through the fire extinguishing agent storage device 100 can be effectively cooled to prevent the evaporation loss of the fire extinguishing agent, making it possible to store the liquid nitrogen fire extinguishing agent for a long time, and providing a basis for the commercial use of the liquid nitrogen fire extinguishing device.

[0055] In one of the optional embodiments, the controller of the control system 500 is also used to obtain the pressure detection result in the fire extinguishing agent storage device 100, for example, by setting a pressure sensor 132 in the fire extinguishing agent storage device 100 to obtain the pressure detection result; when the pressure corresponding to the pressure detection result is greater than or equal to the first set pressure value, the refrigerator 700 is controlled to liquefy the fire extinguishing agent in the fire extinguishing agent storage device 100, and when the pressure corresponding to the pressure detection result is less than the second set pressure value, the refrigerator 700 is turned off.

[0056] Specifically, the control system 500 determines the evaporation condition of liquid nitrogen by detecting the pressure in the fire extinguishing agent storage device 100. If the pressure in the fire extinguishing agent storage device 100 is greater than a first set pressure value (for example, 2 MPa, which may be other values ​​in other embodiments), the control system 500 starts the refrigerator 700 to liquefy the gaseous nitrogen in the tank. When the pressure in the tank is lower than a second set pressure value (for example, 1 MPa, which may be other values ​​in other embodiments), the control system 500 turns off the refrigerator 700 to save energy.

[0057] In one of the optional embodiments, a driving gas container valve 310 is provided on the driving agent pipeline 320; the controller is also used to control the driving gas container valve 310 and the liquid outlet container valve 110 to open at the same time, so that the driving agent enters the fire extinguishing agent storage device 100, and the fire extinguishing agent is output to the point spraying control device 400.

[0058] As shown in FIG4 , liquid nitrogen is stored at low temperature at normal temperature and pressure, and its state is similar to that of water. Therefore, the fire extinguishing agent can be delivered by pressurized delivery. The driving device is designed based on the driving agent storage device 300 group. The high-purity nitrogen in the driving agent storage device 300 bottle group is used to pressurize the liquid nitrogen in the fire extinguishing agent storage device 100, providing kinetic energy for the release of the liquid nitrogen; liquid nitrogen is stored at low temperature at normal temperature and pressure, and its state is similar to that of water. Therefore, the fire extinguishing agent can be delivered by pressurized delivery.

[0059] The driving device of the liquid nitrogen fire extinguishing and explosion suppression device adopts highly compressed nitrogen, and the nitrogen is connected to the fire extinguishing agent storage device 100 by a pipeline. As long as the driving agent storage device 300 inputs air pressure to the fire extinguishing agent storage device 100, the liquid nitrogen fire extinguishing and explosion suppression device will transport liquid nitrogen outward at the pressure output by the driving agent storage device 300.

[0060] Specifically, the driving agent storage device 300 is connected to the fire extinguishing agent storage device 100. When working, the control system 500 opens the driving gas container valve 310 of the driving agent storage device 300, and nitrogen will be transported to the fire extinguishing agent storage device 100 through the pipeline. The control system 500 opens the driving gas container valve 310 of the driving agent storage device 300 and opens the liquid outlet container valve 110 of the liquid nitrogen at the same time, and the liquid nitrogen will flow out of the liquid outlet container valve 110 and flow to each fire extinguishing nozzle through the pipeline connected to the liquid outlet container valve 110. The connection diameter of the fire extinguishing nozzle 410 is DN15, and the nozzle 410 has 8 openings, and the diameter of each hole is 3mm. When spraying, the fire extinguishing agent can be evenly sprayed around.

[0061] In one optional embodiment, the explosion suppressant storage device 200 includes a primary safety valve, which is disposed at the top of the explosion suppressant storage device 200. When the pressure inside the explosion suppressant storage device 200 is greater than the internal pressure threshold, the pressure is released through the primary safety valve.

[0062] As shown in FIG5 , the explosion suppressant storage device 200 includes a gas tank and a solenoid valve. The designed working pressure of the gas tank is 16 MPa. Considering that the tank pressure may be too high, a primary safety valve is installed on the top of the tank. When the internal pressure of the tank is too high, it can actively release the pressure to prevent an explosion.

[0063] The point spray control device 400 includes a hose 460, an adapter 420 and a nozzle 410. The nozzle 410 is designed to adjust the flow rate of the fire extinguishing agent according to the actual installation position and spraying requirements to avoid the waste of the fire extinguishing agent and the explosion suppressant. The nozzle 410 is installed on the adapter 420 through the hose 460. The adapter 420 is connected to the solenoid valve 450, and the solenoid valve 450 is connected to the pressure reducing valve 430 through a pipeline. The explosion suppressant storage device 200 also includes a bursting disc 440 to prevent explosion. The hose 460 can be a rubber hose.

[0064] In some optional embodiments, the present application also provides a battery energy storage system, which includes the fire extinguishing and explosion suppression device in any one of the above embodiments.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0066] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0067] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0068] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0069] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A fire extinguishing and explosion suppression device, characterized in that: include: A fire extinguishing agent storage device, used for containing fire extinguishing agent, wherein the fire extinguishing agent storage device is connected to the point spraying control device through a fire extinguishing agent pipeline; An explosion suppressant storage device, used for containing explosion suppressants, wherein the explosion suppressant storage device is connected to the point spray control device through an explosion suppressant pipeline; An actuating agent storage device, used for containing the actuating agent, and the actuating agent storage device is connected to the fire extinguishing agent storage device through an actuating agent pipeline; A refrigerator, the refrigerator being connected to the fire extinguishing agent storage device and the control panel respectively, and the refrigerator being used to liquefy the fire extinguishing agent in the fire extinguishing agent storage device; The point spray control device is used to output the mixed fire extinguishing agent and the explosion suppression agent.

2. The fire extinguishing and explosion suppression device according to claim 1, characterized in that: The fire extinguishing agent storage device comprises a double-layer tank body, and a vacuum is drawn between the double-layer tank bodies; an insulation layer is included between the inner cylinder bottom and the outer cylinder bottom of the double-layer tank body, and the insulation layer adopts a slightly positive pressure.

3. The fire extinguishing and explosion suppression device according to claim 2, characterized in that: The fire extinguishing agent storage device also includes: a siphon tube, the siphon tube being inserted into the fire extinguishing agent storage device; A refrigerator interface, one end of which is fixed to the fire extinguishing agent storage device and the other end of which is connected to the refrigerator; A liquid outlet container valve is provided on the fire extinguishing agent pipeline and is used to control the on-off of the fire extinguishing agent pipeline.

4. The fire extinguishing and explosion suppression device according to claim 3, characterized in that: The fire extinguishing agent storage device reduces the evaporation rate by at least one of the following settings: the siphon is locally thinned, the head size of the fire extinguishing agent storage device is reduced, the distance between the inner tank body and the outer tank body of the double-layer tank body is increased, and the metal tube of the liquid level gauge at the refrigerator interface is physically insulated from the refrigerator interface.

5. The fire extinguishing and explosion suppression device according to claim 3, characterized in that: The fire extinguishing agent storage device is provided with a two-stage safety valve, wherein the set pressures of the first-stage safety valve and the second-stage safety valve are different.

6. The fire extinguishing and explosion suppression device according to claim 3, characterized in that: The refrigerator is a dual-compressor cascade hybrid refrigerator, and the refrigerator includes a multi-channel temperature module probe; the refrigerator is used to dynamically adjust the operation of the compressor according to the temperature collected by the multi-channel temperature module probe.

7. The fire extinguishing and explosion suppression device according to claim 6, characterized in that: Also includes: A controller, wherein the controller is used to obtain a pressure detection result in the fire extinguishing agent storage device; when the pressure corresponding to the pressure detection result is greater than or equal to a first set pressure value, control the refrigerator to liquefy the fire extinguishing agent in the fire extinguishing agent storage device; when the pressure corresponding to the pressure detection result is less than a second set pressure value, shut down the refrigerator.

8. The fire extinguishing and explosion suppression device according to claim 7, characterized in that: A driving gas container valve is provided on the driving agent pipeline; the controller is also used to control the driving gas container valve and the liquid outlet container valve to open simultaneously, so that the driving agent enters the fire extinguishing agent storage device, and the fire extinguishing agent is output to the point spraying control equipment.

9. The fire extinguishing and explosion suppression device according to claim 1, characterized in that: The explosion suppressant storage device comprises a primary safety valve, which is arranged at the top of the explosion suppressant storage device. When the pressure inside the explosion suppressant storage device is greater than an internal pressure threshold, the pressure is released through the primary safety valve.

10. A battery energy storage system, characterized in that: A fire extinguishing and explosion suppression device comprising any one of claims 1 to 9.

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