Fire control temperature control integrated host and energy storage power station

Abstract

The utility model belongs to the technical field of energy storage power station, disclose a kind of fire control temperature control integrated host computer and energy storage power station.The host computer includes inner circulation pipe system, first heat exchanger and outer circulation pipe system, and the first cavity of first heat exchanger is connected to inner circulation pipe system, and heat exchange medium in inner circulation pipe system can absorb heat when flowing through the first cavity.Outer circulation pipe system and the second cavity of first heat exchanger are connected, and battery heat exchanger and sprinkler in the electrical bin of energy storage power station are connected with outer circulation pipe system.The fire control temperature control integrated host computer described above can transfer fire control agent storage tank to temperature control bin, and connect with sprinkler in electrical bin through pipeline, so as to achieve the effect of reasonable distribution of electrical bin and temperature control bin space distribution, so that the space in electrical bin can be mainly used to accommodate energy storage battery and other electrical related systems, thereby improving the space utilization and energy density of energy storage power station, further reducing the land cost of energy storage power station, and improving the economy of energy storage power station.

Description

Technical Field

[0001] This utility model relates to the field of energy storage power station technology, and in particular to an integrated fire-fighting temperature control host and an energy storage power station. Background Technology

[0002] In existing energy storage power station designs, the electrical compartment is mainly used to house the energy storage battery system, while the fire protection system and temperature control system, as key safety and thermal management components, are usually arranged in separate compartments.

[0003] Specifically, fire-fighting tanks and their associated fire-fighting pipes are typically installed directly inside the electrical compartment to ensure a rapid response and fire suppression in the event of battery thermal runaway. Temperature control systems (such as air conditioners and liquid cooling units) require heat exchange with the external environment and are therefore separately located in a temperature control compartment adjacent to the electrical compartment to optimize heat exchange efficiency and maintain the battery's optimal operating temperature. However, because fire-fighting tanks and pipes occupy space within the electrical compartment, the effective space available for installing energy storage batteries is reduced, decreasing the overall capacity and energy density of the energy storage power station.

[0004] Therefore, there is an urgent need for an integrated fire-fighting temperature control unit and energy storage power station to solve the above-mentioned technical problems. Utility Model Content

[0005] One objective of this invention is to provide an integrated fire-fighting temperature control unit, which is beneficial for improving the energy density of energy storage power stations.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The integrated fire-fighting temperature control unit, installed within the energy storage power station, includes:

[0008] Internal circulation piping system;

[0009] A first heat exchanger, wherein the internal circulation piping system is connected to a first cavity of the first heat exchanger, and the heat exchange medium in the internal circulation piping system can absorb heat when flowing through the first cavity;

[0010] An external circulation piping system is connected to the second chamber of the first heat exchanger. The external circulation piping system is also connected to a battery heat exchanger and a sprayer located in the electrical compartment of the energy storage power station. The external circulation piping system has a first state and a second state. In the first state, refrigerant circulates between the external circulation piping system and the battery heat exchanger. The refrigerant absorbs heat when flowing through the battery heat exchanger and releases heat to the first chamber when flowing through the second chamber. In the second state, the fire-fighting agent storage tank in the external circulation piping system supplies fire-fighting agent to the sprayer.

[0011] Another objective of this invention is to provide an energy storage power station with higher energy density.

[0012] To achieve this objective, the present invention adopts the following technical solution:

[0013] An energy storage power station includes an electrical compartment and a temperature control compartment. The electrical compartment is equipped with an energy storage battery, a battery heat exchanger, and a sprinkler. The temperature control compartment is equipped with the aforementioned integrated fire-fighting temperature control unit. A fire-fighting temperature control pipeline extends between the temperature control compartment and the electrical compartment. The integrated fire-fighting temperature control unit is connected to the battery heat exchanger and the sprinkler through the fire-fighting temperature control pipeline.

[0014] The above-mentioned technical solution has the following advantages or beneficial effects: Through the above-mentioned integrated fire-fighting temperature control host, the fire-fighting agent storage tank can be transferred to the temperature control compartment of the energy storage power station, and connected to the sprinklers in the electrical compartment through pipelines, thereby achieving the effect of rationally allocating the space of the electrical compartment and the temperature control compartment, so that the space in the electrical compartment can be mainly used to accommodate energy storage batteries and other electrical-related systems, thereby improving the space utilization rate and energy density of the energy storage power station, further reducing the land cost of the energy storage power station, and improving the economics of the energy storage power station. Attached Figure Description

[0015] Figure 1 This is a partial structural diagram of the temperature control chamber in one embodiment of this utility model;

[0016] Figure 2 This is a structural diagram of the integrated fire-fighting temperature control unit in one embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram showing the connection between the integrated fire-fighting temperature control unit, the battery heat exchanger, and the sprinkler in one embodiment of this utility model.

[0018] In the picture:

[0019] 100. Temperature-controlled chamber; 1001. Fan;

[0020] 1. First heat exchanger;

[0021] 201. Compressor; 202. Second heat exchanger; 203. Liquid receiver; 204. Dryer filter; 205. Expansion valve; 206. Gas-liquid separator;

[0022] 301. Inlet connector; 302. Return temperature probe; 303. First pressure transmitter; 304. External circulation pump; 305. Heater; 306. Throttling device; 307. Second solenoid valve; 308. Outlet temperature probe; 309. Second pressure transmitter; 310. Outlet connector; 311. Fire-fighting agent storage tank; 312. First solenoid valve; 313. Check valve; 314. Vent valve; 315. First switching valve; 316. Make-up connector; 317. Second switching valve; 318. Expansion tank; 319. Third switching valve; 320. Water tank; 3201. Filling port; 321. Check valve; 322. Make-up pump; 323. Third solenoid valve; 324. Drain connector; 325. Fourth switching valve; 326. Fifth switching valve; 327. Level gauge; 328. Level switch; 329. Filter;

[0023] 4. Fire-fighting temperature control piping; 41. Water inlet piping; 411. Main piping; 412. Refrigerant branch piping; 413. Fire-fighting agent branch piping; 414. Fire-fighting agent piping control valve; 415. Water inlet shut-off valve; 42. Water return piping; 421. Water return shut-off valve;

[0024] 5. Battery heat exchanger;

[0025] 6. Sprayer. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," and "abutting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] An energy storage power station is a power system that uses electrochemical energy storage, that is, uses batteries (such as lithium-ion batteries, sodium-ion batteries, lead-acid batteries, etc.) to store energy and release it in the form of electrical energy when needed.

[0031] The core components of an energy storage power station include battery packs, a battery management system (BMS), a power conversion system (PCS), a temperature control system, and a fire suppression system. The battery pack is an energy storage unit composed of numerous individual batteries connected in series and parallel, typically employing a modular design for easy expansion and maintenance. The battery pack utilizes a precise structural design to ensure uniform heat dissipation and is equipped with voltage and temperature sensors to monitor its status in real time. Multiple battery modules can form battery clusters, which can then be connected in parallel through combiner cabinets to create larger capacity energy storage units. The performance of the battery pack directly affects the capacity, efficiency, and safety of the energy storage power station; therefore, it must work closely with the BMS and temperature control system to maintain optimal operating conditions during charging and discharging while preventing the risk of thermal runaway. The battery management system (BMS) is responsible for real-time monitoring of battery voltage, current, temperature, and other parameters, performing state assessment (SOC / SOH), equalization control, and fault protection to ensure the safe and efficient operation of the battery pack.

[0032] The power conversion system (PCS) is responsible for bidirectional AC / DC conversion between the battery pack and the grid, controlling charging and discharging power, and has grid-connected / off-grid operation capabilities to ensure efficient and stable power transmission. It also supports grid frequency regulation and voltage regulation. The temperature control system precisely regulates the battery pack's operating temperature through liquid cooling or phase change materials to prevent overheating or overcooling, ensuring battery performance and safety. It also works with the battery management system (BMS) to provide early warning of abnormal temperatures and intelligent heat dissipation control. The fire suppression system is a protection system specifically designed to address the risk of battery thermal runaway. It provides early warning through temperature sensing, smoke detection, and gas analysis, and uses active fire suppression methods such as spraying inert gases and extinguishing agents to control fires.

[0033] In related technologies, energy storage power stations mainly include an electrical compartment and a temperature control compartment 100. The aforementioned battery pack, battery management system (BMS), power conversion system (PCS), and fire suppression system are primarily located in the electrical compartment, while the temperature control system is mainly located in the temperature control compartment 100. The electrical compartment and the temperature control compartment 100 are isolated. The temperature control system includes a battery heat exchanger 5 and a radiator. The battery heat exchanger 5 is located in the electrical compartment and absorbs the operating heat from the battery. The radiator is located in the temperature control compartment 100 and is connected to the battery heat exchanger 5 via pipes, allowing the refrigerant to circulate between the radiator and the battery heat exchanger 5. This continuously transfers the heat generated by the battery to the temperature control compartment 100 and releases it to the external environment, thereby preventing the temperature in the electrical compartment from continuously rising.

[0034] In typical layouts, fire suppression systems are mostly installed directly within the electrical compartment, adjacent to the battery packs, enabling rapid active fire suppression in the event of a fire. However, as the capacity of energy storage power stations gradually increases, the amount of fire extinguishing agent that the fire suppression system needs to store also increases. Therefore, larger-capacity fire extinguishing agent storage tanks 311 need to be installed within the electrical compartment to store the fire extinguishing agent. However, larger-capacity fire extinguishing agent storage tanks 311 occupy more space within the electrical compartment, further increasing the overall volume of the energy storage power station. This is not conducive to improving the energy density of the energy storage power station, resulting in uneconomical land use and construction costs.

[0035] This embodiment provides an integrated fire-fighting temperature control unit, which can supply refrigerant and fire-fighting agent using an integrated unit, and is beneficial to improving the energy density of energy storage power stations. The following is based on the appendix... Figure 1 To be continued Figure 3 This invention introduces the integrated fire-fighting temperature control unit and energy storage power station provided by this utility model.

[0036] like Figure 1 , Figure 2As shown, the integrated fire-fighting temperature control unit is installed inside the temperature control chamber 100 and includes an internal circulation piping system, a first heat exchanger 1, and an external circulation piping system. The first heat exchanger 1 is a plate heat exchanger with a first chamber and a second chamber that are separated and thermally connected. The internal circulation piping system is connected to the first chamber, and a heat exchange medium can circulate between the internal circulation piping system and the first chamber. When the heat exchange medium flows through the first chamber, it can absorb heat from the second chamber.

[0037] The external circulation piping system is connected to the second chamber, and is also connected to the battery heat exchanger 5 and the sprayer 6 located in the electrical compartment. The external circulation piping system has a first state and a second state. In the first state, the energy storage power station is in normal operation, and refrigerant circulates between the external circulation piping system and the battery heat exchanger 5. When the refrigerant flows through the battery heat exchanger 5, it absorbs the heat generated by the battery's operation and releases heat to the heat exchange medium in the first chamber when it flows through the second chamber. This continuously transfers the heat generated by the battery's operation to the internal circulation piping system, allowing the battery to maintain a suitable operating temperature. Simultaneously, the fire extinguishing agent is stored in a fire extinguishing agent supply tank in the external circulation piping system and remains in storage, preventing it from flowing into the sprayer 6. When any sensor directly or indirectly detects a fire, the integrated fire extinguishing and temperature control unit switches to the second state. In the second state, the fire extinguishing agent storage tank 311 supplies fire extinguishing agent to the sprayer 6, thereby controlling the fire by spraying the fire extinguishing agent. Meanwhile, in the second state, the external circulation system no longer supplies refrigerant to the battery heat exchanger 5, which helps to ensure the flow rate of the fire-fighting agent.

[0038] Specifically, a temperature control pipeline and a fire protection pipeline are extended between the electrical compartment and the temperature control compartment 100. The temperature control pipeline is used to connect the external circulation system and the battery heat exchanger 5, while the fire protection pipeline is used to connect the fire agent storage tank 311 and the sprayer 6, thereby realizing the connection between the fire-fighting temperature control integrated host, the battery heat exchanger 5, and the sprayer 6.

[0039] The aforementioned integrated fire-fighting and temperature control unit can transfer the fire-fighting agent storage tank 311 to the temperature control chamber 100 of the energy storage power station, and connect it to the sprayers 6 in the electrical chamber through pipelines. This achieves the effect of rationally allocating the space between the electrical chamber and the temperature control chamber 100, allowing the space in the electrical chamber to be mainly used to accommodate energy storage batteries and other electrical-related systems. This improves the space utilization and energy density of the energy storage power station, further reduces the land cost of the energy storage power station, and enhances the economic efficiency of the energy storage power station.

[0040] Specifically, in this embodiment, the heat exchange medium used is a phase-change heat exchange medium such as R32 or R290, which can absorb heat from the second cavity using the heat pump principle, thereby transferring heat. The refrigerant used is ethylene glycol. Its 50% aqueous solution can operate stably from -30℃ to 120℃. Its high heat capacity (2.4 J / (g·K)) and antifreeze and anticorrosion properties significantly improve heat dissipation efficiency, and its cost is more than 60% lower than that of perfluorinated liquids. The fire extinguishing agent used is perfluorohexanone. Perfluorohexanone is a fluorinated ketone fire extinguishing agent. It is a colorless liquid at room temperature and extinguishes fires by physically absorbing heat and interrupting the combustion chain reaction. It is especially suitable for lithium battery fires, with an extinguishing concentration of only 4-6%.

[0041] Of course, the heat exchange medium in this invention is not limited to R32 and R290, the refrigerant is not limited to ethylene glycol, and the fire extinguishing agent is not limited to perfluorohexanone. In some embodiments, R22, R410A, etc. can be used to replace R32 and R290, propylene glycol can be used to replace ethylene glycol, and heptafluoropropane, inert gases, etc. can be used to replace perfluorohexanone. These are all within the scope of protection of this invention.

[0042] like Figure 1 , Figure 2 As shown, in this embodiment, the internal circulation system includes a second heat exchanger 202, a compressor 201, and an expansion valve 205, which are connected sequentially to the first heat exchanger 1. Under the action of the compressor 201, the heat exchange medium circulates along the path of the compressor 201, the second heat exchanger 202, the expansion valve 205, and the first chamber. It absorbs heat when flowing through the first heat exchanger 1 and releases heat when flowing through the second heat exchanger 202. The second heat exchanger 202 is a microchannel heat exchanger, and the temperature control chamber 100 is equipped with multiple fan mounting ports. Each fan mounting port is fitted with a fan 1001, which drives airflow through the microchannel heat exchanger, thereby dissipating heat to the external environment. As heat is continuously dissipated, the heat exchange medium continuously absorbs heat from the refrigerant as it flows through the first chamber, allowing the heat generated by the battery's operation to be continuously transferred from the refrigerant to the heat exchange medium, and ultimately dissipated to the external environment through the heat exchange medium. Preferably, pressure sensors are provided on both the suction side and the liquid outlet side of the compressor 201 to detect the working pressure on both sides of the compressor 201, and a temperature probe is provided on the liquid outlet side of the compressor 201 to detect the temperature of the heat exchange medium.

[0043] like Figure 2As shown, the internal circulation system also includes a gas-liquid separator 206, which is connected between the first heat exchanger 1 and the compressor 201. The gas-liquid separator 206 is located on the suction side of the compressor 201 and can prevent unevaporated heat exchange medium from entering the compressor 201, thus avoiding liquid slugging and damage to the compressor 201. Optionally, in some embodiments, under low load or low temperature conditions, the gas-liquid separator 206 can also temporarily store excess liquid heat exchange medium, ensuring that the compressor 201 only draws in pure gaseous heat exchange medium.

[0044] Continue to refer to Figure 2 As shown, the internal circulation piping system also includes a liquid receiver 203, which is connected between the second heat exchanger 202 and the expansion valve 205. The liquid receiver 203 is located downstream of the second heat exchanger 202 and can temporarily store high-pressure liquid refrigerant, adjusting the liquid supply according to operating conditions. Simultaneously, the liquid receiver 203 can also buffer fluctuations in the flow rate of the heat exchange medium, ensuring a stable liquid supply to the expansion valve 205.

[0045] The internal circulation system also includes a dryer filter 204, which is connected between the liquid receiver 203 and the expansion valve 205. The dryer filter 204 typically contains a desiccant such as a molecular sieve to remove moisture from the heat exchange medium, preventing moisture from freezing and clogging the expansion valve 205. Of course, the dryer filter 204 also has good filtration capabilities for particulate matter such as metal shavings and welding slag, thus protecting the expansion valve 205 and the compressor 201.

[0046] Continue to refer to Figure 2 As shown, the external circulation piping system includes an inlet connector 301, an external circulation pump 304, a fire-fighting agent storage tank 311, and an outlet connector 310. The inlet connector 301, external circulation pump 304, second chamber, and outlet connector 310 are sequentially connected. The outlet end of the fire-fighting agent storage tank 311 is connected between the second chamber and the outlet connector 310. When the integrated fire-fighting temperature control unit is in the first state, the refrigerant, driven by the external circulation pump 304, can circulate sequentially along the path of the inlet connector 301, external circulation pump 304, second chamber, outlet connector 310, and battery heat exchanger 5, thereby continuously transferring the heat generated by the battery through the first heat exchanger 1. Preferably, butterfly valves are provided at both the outlet connector 310 and the inlet connector 301 to facilitate the inspection and maintenance of the external circulation piping system.

[0047] It should be noted that, since the fire-fighting agent storage tank 311 is equipped with a corresponding supply valve and is configured with branch pipelines, by setting the supply valve to the closed state, the fire-fighting agent can be safely stored in the fire-fighting agent storage tank 311, avoiding the mixing of fire-fighting agent and refrigerant in the first state. When the integrated fire-fighting temperature control unit is in the second state, the supply valve changes from the closed state to the open state, at which time the fire-fighting agent will flow out through the liquid outlet connector 310.

[0048] like Figure 3 As shown, in this embodiment, a fire-fighting temperature control pipeline 4 extends between the temperature control chamber 100 and the electrical chamber. The fire-fighting temperature control pipeline 4 includes an inlet water pipeline 41 and a return water pipeline 42. The inlet water pipeline 41 is connected between the liquid outlet connector 310 and the battery heat exchanger 5, and the return water pipeline 42 is connected between the battery heat exchanger 5 and the liquid inlet connector 301, so that the refrigerant can circulate in the first state.

[0049] Continue to refer to Figure 3 As shown, the inlet pipe 41 includes a main pipe 411, a refrigerant branch pipe 412, and a fire-fighting agent branch pipe 413. The refrigerant branch pipe 412 connects the main pipe 411 and the battery heat exchanger 5, and the fire-fighting agent branch pipe 413 connects the main pipe 411 and the sprayer 6. The main pipe 411 is connected to the liquid outlet connector 310. A fire-fighting agent control valve 414 connects the fire-fighting agent branch pipe 413 and the main pipe 411. When the integrated fire-fighting temperature control unit is in the first state, the fire-fighting agent control valve 414 is closed, allowing the refrigerant to flow only in the main pipe 411, the refrigerant branch pipe 412, and the return water pipe 42. When the integrated fire-fighting temperature control unit is in the second state, the fire-fighting agent control valve 414 is open, and under the pressure of the stored material, the fire-fighting agent flows through the main pipe 411 and the fire-fighting agent branch pipe 413 into the sprayer 6, thereby controlling the fire.

[0050] Optionally, an inlet shut-off valve 415 is installed between the refrigerant branch line 412 and the main pipeline 411, and a return shut-off valve 421 is installed on the return pipeline 42. When the integrated fire-fighting temperature control unit is in the first state, both the inlet shut-off valve 415 and the return shut-off valve 421 are open, allowing the refrigerant to flow normally. When the integrated fire-fighting temperature control unit is in the second state, at least one of the inlet shut-off valve 415 and the return shut-off valve 421 is closed, ensuring that the fire-fighting agent can only be sprayed through the sprinkler 6, thus guaranteeing the spray flow rate and spray pressure of the fire-fighting agent.

[0051] Of course, in some embodiments, in addition to the fire-fighting agent pipeline control valve 414 mentioned above, a similar control effect can also be achieved in the water inlet pipeline 41 by other control valves such as a three-way control valve, so that the refrigerant and fire-fighting agent can flow without interfering with each other, which is also within the scope of protection of this utility model.

[0052] Continue to refer to Figure 2 As shown, the external circulation piping system also includes a first branch. The inlet of the first branch is connected between the inlet connector 301 and the external circulation pump 304, and the outlet of the first branch is connected between the fire-fighting agent storage tank 311 and the outlet connector 310. The first branch is equipped with a first solenoid valve 312 and a check valve 313. The check valve 313 is used to constrain the flow direction to flow from the inlet of the first branch through the first solenoid valve 312 to the outlet of the first branch. When the fire-fighting temperature control integrated host is in the first state, the first solenoid valve 312 is closed to prevent refrigerant from flowing directly out of the outlet connector 310 through the first branch, and the check valve 313 can prevent refrigerant from flowing directly back to the external circulation pump 304 through the first branch. When the fire-fighting temperature control integrated host is in the second state, the first solenoid valve 312 is open, and the external circulation pump 304 is closed, interrupting the refrigerant flow in the external circulation piping system. At this time, the resistance in the water inlet pipe 41 (especially the fire agent branch 413 mentioned above) is reduced, which can ensure the effective spraying of the fire agent.

[0053] Preferably, a second solenoid valve 307 is connected between the second chamber and the liquid outlet of the fire-fighting agent storage tank 311. When the integrated fire-fighting temperature control unit is in the first state, the second solenoid valve 307 is open, allowing refrigerant to flow smoothly from the second chamber into the liquid outlet connector 310. When the integrated fire-fighting temperature control unit is in the second state, the second solenoid valve 307 is closed, preventing the fire-fighting agent from flowing backward into the second chamber and the external circulation pump 304.

[0054] Optionally, a heater 305 and a throttle 306 are connected between the external circulation pump 304 and the second solenoid valve 307. The liquid inlet end of the heater 305 and the liquid inlet end of the second chamber are connected in parallel to the liquid outlet end of the external circulation pump 304, and the liquid outlet end of the throttle 306 and the liquid outlet end of the second chamber are connected in parallel to the liquid inlet end of the second solenoid valve 307. This allows the integrated fire-fighting temperature control unit to perform more precise refrigerant temperature regulation and to achieve battery heating and insulation.

[0055] For example, when the battery temperature is lower than the suitable operating temperature, the refrigerant is regulated by the throttle 306 to flow through the heater 305 to absorb heat and release heat when flowing through the battery heat exchanger 5, thus achieving the heating treatment of the battery (at this time, the compressor 201 in the internal circulation system is in a closed state). By regulating the flow rate of the throttle 306, the ratio of refrigerant flowing through the second chamber and the heater 305 can be changed, thereby changing the temperature change of the refrigerant and achieving a more precise temperature regulation effect.

[0056] Of course, in some embodiments, the throttle 306 may not be provided. Instead, by providing a regulating valve or a switching valve, the refrigerant can selectively flow through at least one of the second chamber and the heater 305, or flow through the second chamber and the heater 305 in different proportions, which can also achieve a similar temperature regulation effect and is within the scope of protection of this utility model.

[0057] Optionally, such as Figure 2 As shown, a return liquid temperature probe 302 and a first pressure transmitter 303 are connected between the inlet connector 301 and the external circulation pump 304. The return liquid temperature probe 302 can detect the return liquid temperature of the refrigerant, and the first pressure transmitter 303 can detect the pressure of the refrigerant, thereby monitoring whether the temperature and pressure of the refrigerant are within the normal operating range. Similarly, an outlet liquid temperature probe 308 and a second pressure transmitter 309 are connected between the fire-fighting agent storage tank 311 and the outlet connector 310. The outlet liquid temperature probe 308 can detect the outlet liquid temperature of the refrigerant, and the second pressure transmitter 309 can detect the pressure of the refrigerant, thereby monitoring whether the temperature and pressure of the refrigerant are within the normal operating range.

[0058] Optionally, the external circulation piping system also includes an exhaust valve 314. The inlet of the exhaust valve 314 is connected between the external circulation pump 304 and the second chamber, and a first switching valve 315 is connected between the exhaust valve 314 and the external circulation pump 304. The first switching valve 315 is a normally open valve. When it is in the open state, air in the external circulation piping system can be discharged from the external circulation piping system through the first switching valve 315 and the exhaust valve 314, ensuring the normal operation of the refrigerant.

[0059] Continue to refer to Figure 2 As shown, the external circulation piping system also includes a refrigerant replenishment connector 316, which is connected to the inlet of the external circulation pump 304. A second switching valve 317 is connected between the refrigerant replenishment connector 316 and the external circulation pump 304. The second switching valve 317 is a normally closed valve. When it is in the open state, refrigerant can be replenished into the external circulation piping system through the refrigerant replenishment connector 316 to avoid insufficient refrigerant or insufficient pressure.

[0060] Preferably, the external circulation piping system further includes an expansion tank 318, which is connected to the liquid inlet of the external circulation pump 304, and a third switching valve 319 is connected between the external circulation pump 304 and the expansion tank 318. The third switching valve 319 is a normally open valve. When it is in the open state, the expansion tube can absorb the volume expansion of the refrigerant and stabilize the pressure in the external circulation piping system, ensuring the safe operation of the pipeline and equipment.

[0061] Optionally, the external circulation piping system also includes a check valve 321 and a water tank 320. The outlet of the check valve 321 is connected to the inlet of the external circulation pump 304, and the inlet of the check valve 321 is connected to the water tank 320. A replenishment pump 322 and a third solenoid valve 323 are connected between the check valve 321 and the water tank 320. The water tank 320 can store refrigerant, and when the first pressure transmitter 303 or the second pressure transmitter 309 detects insufficient refrigerant pressure, automatic refrigerant replenishment can be achieved by opening the third solenoid valve 323 and the replenishment pump 322. The check valve 321 prevents refrigerant from flowing back into the water tank 320, i.e., avoids reverse flow.

[0062] Preferably, the water tank 320 is connected to a drain connector 324, and a fourth switching valve 325 is connected between the drain connector 324 and the water tank 320. The fourth switching valve 325 is a normally closed valve. When it is necessary to empty the water tank 320, the refrigerant in the water tank 320 can be discharged through the fourth switching valve 325 by opening the fourth switching valve 325. Optionally, a fifth switching valve 326 is connected between the water tank 320 and the replenishment pump 322. The fifth switching valve 326 is a normally open valve. When it is necessary to repair the replenishment pump 322, the fifth switching valve 326 can be closed to reduce the difficulty of repair. Preferably, a filter 329 is also provided in the water tank 320 to filter impurities in the refrigerant.

[0063] Continue to refer to Figure 2 As shown, the water tank 320 is equipped with a liquid filling port 3201, and the water tank 320 is connected to a level gauge 327 and / or a level switch 328. The level gauge 327 is used to measure the water level in the water tank 320 and can notify maintenance personnel through a corresponding signal when the refrigerant is too low. The level switch 328 is connected to the third solenoid valve 323 and the liquid replenishment pump 322, and can send corresponding signals to the third solenoid valve 323 and the liquid replenishment pump 322 when the liquid level is too low, to prevent the third solenoid valve 323 and the liquid replenishment pump 322 from mistakenly entering the open state and pumping air into the external circulation system.

[0064] In one embodiment of this utility model, an energy storage power station is also provided. The energy storage power station includes an electrical compartment and a temperature control compartment 100. The electrical compartment is equipped with an energy storage battery, a battery heat exchanger 5, and a sprinkler 6. The temperature control compartment 100 is equipped with the aforementioned integrated fire-fighting temperature control host. A fire-fighting temperature control pipeline 4 extends between the temperature control compartment 100 and the electrical compartment. The integrated fire-fighting temperature control host is connected to the battery heat exchanger 5 and the sprinkler 6 through the fire-fighting temperature control pipeline 4.

[0065] In this energy storage power station, the fire-fighting agent storage tank 311 can be transferred to the temperature control chamber 100 and connected to the sprayer 6 in the electrical chamber through pipelines. This achieves the effect of rationally allocating the space between the electrical chamber and the temperature control chamber 100, so that the space in the electrical chamber can be mainly used to accommodate energy storage batteries and other electrical-related systems. This improves the space utilization and energy density of the energy storage power station, further reduces the land cost of the energy storage power station, and improves the economics of the energy storage power station.

[0066] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0067] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A fire-fighting temperature control integrated unit, installed within an energy storage power station, characterized in that: include: Internal circulation piping system; The first heat exchanger (1) is connected to the first cavity of the first heat exchanger (1) via the internal circulation piping system, and the heat exchange medium in the internal circulation piping system can absorb heat when flowing through the first cavity. An external circulation piping system is connected to the second chamber of the first heat exchanger (1). The external circulation piping system is also connected to the battery heat exchanger (5) and the sprayer (6) located in the electrical compartment of the energy storage power station. The external circulation piping system has a first state and a second state. In the first state, refrigerant circulates between the external circulation piping system and the battery heat exchanger (5). The refrigerant absorbs heat when flowing through the battery heat exchanger (5) and releases heat to the first chamber when flowing through the second chamber. In the second state, the fire-fighting agent storage tank (311) in the external circulation piping system supplies fire-fighting agent to the sprayer (6).

2. The integrated fire-fighting temperature control unit according to claim 1, characterized in that, The internal circulation system includes a second heat exchanger (202), a compressor (201), and an expansion valve (205). The compressor (201), the second heat exchanger (202), the expansion valve (205), and the first heat exchanger (1) are connected in sequence. The heat exchange medium releases heat when it flows through the second heat exchanger (202).

3. The integrated fire-fighting temperature control unit according to claim 2, characterized in that, The internal circulation system also includes a gas-liquid separator (206), which is connected between the first heat exchanger (1) and the compressor (201).

4. The integrated fire-fighting temperature control unit according to claim 2, characterized in that, The internal circulation system also includes a reservoir (203) connected between the second heat exchanger (202) and the expansion valve (205).

5. The integrated fire-fighting temperature control unit according to claim 4, characterized in that, The internal circulation system also includes a dryer filter (204), which is connected between the reservoir (203) and the expansion valve (205).

6. The integrated fire-fighting temperature control unit according to claim 1, characterized in that, The external circulation piping system includes an inlet connector (301), an external circulation pump (304), a fire-fighting agent storage tank (311), and an outlet connector (310). The inlet connector (301), the external circulation pump (304), the second chamber, and the outlet connector (310) are sequentially connected. The outlet end of the fire-fighting agent storage tank (311) is connected between the second chamber and the outlet connector (310). In the first state, the refrigerant circulates along the path of the inlet connector (301), the external circulation pump (304), the second chamber, the outlet connector (310), and the battery heat exchanger (5); in the second state, the fire-fighting agent flows from the fire-fighting agent storage tank (311) through the outlet connector (310) to the sprayer (6).

7. The integrated fire-fighting temperature control unit according to claim 6, characterized in that, The fire-fighting temperature control unit is connected to a water inlet pipe (41), which extends into the electrical compartment and is connected to the battery heat exchanger (5) and the sprinkler (6). The water inlet pipe (41) is equipped with a control valve, which is configured to introduce the refrigerant into the battery heat exchanger (5) in the first state and introduce the fire-fighting agent into the sprinkler (6) in the second state.

8. The integrated fire-fighting temperature control unit according to claim 6, characterized in that, The external circulation piping system also includes a first branch, the inlet end of which is connected between the inlet connector (301) and the external circulation pump (304), and the outlet end of which is connected between the fire-fighting agent storage tank (311) and the outlet connector (310). The first branch is provided with a first solenoid valve (312) and a check valve (313). The check valve (313) is used to constrain the flow direction to flow from the inlet end of the first branch through the first solenoid valve (312) to the outlet end of the first branch.

9. The integrated fire-fighting temperature control unit according to claim 7, characterized in that, A second solenoid valve (307) is connected between the second chamber and the liquid outlet of the fire-fighting agent storage tank (311).

10. The integrated fire-fighting temperature control unit according to claim 9, characterized in that, A heater (305) is connected between the external circulation pump (304) and the second solenoid valve (307).

11. The integrated fire-fighting temperature control unit according to claim 10, characterized in that, The inlet end of the second chamber and the inlet end of the heater (305) are both connected to the external circulation pump (304). A throttle (306) is connected between the outlet end of the heater (305) and the second solenoid valve (307). The outlet end of the second chamber and the outlet end of the throttle (306) are both connected to the second solenoid valve (307).

12. The integrated fire-fighting temperature control unit according to claim 6, characterized in that, A return temperature probe (302) and a first pressure transmitter (303) are connected between the inlet connector (301) and the external circulation pump (304); and / or, an outlet temperature probe (308) and a second pressure transmitter (309) are connected between the fire-fighting agent storage tank (311) and the outlet connector (310).

13. The integrated fire-fighting temperature control unit according to claim 6, characterized in that, The external circulation system also includes an exhaust valve (314), the air inlet of which is connected between the external circulation pump (304) and the second chamber, and a first switching valve (315) is connected between the exhaust valve (314) and the external circulation pump (304).

14. The integrated fire-fighting temperature control unit according to claim 6, characterized in that, The external circulation piping system also includes a replenishment connector (316), which is connected to the inlet end of the external circulation pump (304), and a second switching valve (317) is connected between the replenishment connector (316) and the external circulation pump (304).

15. The integrated fire-fighting temperature control unit according to claim 6, characterized in that, The external circulation system also includes an expansion tank (318), which is connected to the inlet end of the external circulation pump (304), and a third switching valve (319) is connected between the external circulation pump (304) and the expansion tank (318).

16. The integrated fire-fighting temperature control unit according to claim 15, characterized in that, The external circulation system also includes a check valve (321) and a water tank (320). The outlet end of the check valve (321) is connected to the inlet end of the external circulation pump (304). The inlet end of the check valve (321) is connected to the water tank (320). A replenishment pump (322) and a third solenoid valve (323) are connected between the check valve (321) and the water tank (320).

17. The integrated fire-fighting temperature control unit according to claim 16, characterized in that, The water tank (320) is connected to a drain connector (324), and a fourth switch valve (325) is connected between the drain connector (324) and the water tank (320).

18. The integrated fire-fighting temperature control unit according to claim 16, characterized in that, The water tank (320) is provided with a liquid inlet (3201), and the water tank (320) is connected to a level gauge (327) and / or a level switch (328).

19. The integrated fire-fighting temperature control unit according to claim 16, characterized in that, The water tank (320) is equipped with a filter (329).

20. An energy storage power station, characterized in that, The device includes an electrical compartment and a temperature control compartment (100). The electrical compartment is equipped with an energy storage battery, a battery heat exchanger (5), and a sprinkler (6). The temperature control compartment (100) is equipped with a fire-fighting temperature control integrated host as described in any one of claims 1-19. A fire-fighting temperature control pipeline (4) extends between the temperature control compartment (100) and the electrical compartment. The fire-fighting temperature control integrated host is connected to the fire-fighting temperature control pipeline (4), the battery heat exchanger (5), and the sprinkler (6).

Images