Energy storage water chiller system and integrated water chiller unit

Abstract

The utility model discloses an energy storage cooling-water machine system which comprises a heat exchange system and a waterway system, and a water inlet pipeline and a water outlet pipeline of the waterway system are used for being connected with an energy storage equipment terminal to achieve water circulation. A water supply pipeline of the waterway system is connected with the water inlet pipeline and the water tank; a water replenishing pipeline of the waterway system is connected with the water supply pipeline. Through the design mode, the circulating water quantity in the water path system can be adjusted, so that the cold water quantity output by the energy storage water chiller system is matched with the cooling requirement actually required by the energy storage equipment terminal. The utility model further discloses an integrated water chilling unit, the heat exchange system and the waterway system are integrated in the cabinet body, and a modular structure is integrally formed. By means of the modular structural design mode, it is ensured that the water chilling unit has complete heat exchange and water circulation functions, meanwhile, the internal space of the cabinet body can be fully utilized, miniaturization design of the water chilling unit is achieved, and production assembly, remote conveying, disassembly, assembly, maintenance and other operations are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of chillers, and in particular to a chiller system and an integrated chiller applied to the energy storage industry. Background Art

[0002] In the energy storage industry, energy storage equipment such as energy storage cabinets, energy storage battery packs, and energy storage charging stations have high requirements for ambient temperature. To ensure normal system operation, a heat dissipation method combining heat dissipation structures and air-cooled forced convection has been commonly used in the past. For example, the heat dissipation structure for flywheel energy storage units disclosed in announcement number CN215419967U achieves heat dissipation and cooling through cooling fins and air convection. However, air-cooled cooling methods are often only suitable for equipment installed in an external environment (such as charging stations) and have drawbacks such as low energy efficiency, multiple heat dissipation blind spots, and an inability to provide comprehensive temperature control.

[0003] Existing methods use chilled water equipment to cool energy storage systems. The chilled water produced by the chilled water equipment ensures that the energy storage system remains within a safe temperature range. For example, publication number CN118507905A provides a novel liquid cooling system for energy storage battery compartments. This system uses low-temperature cooling water from a cooling tower to circulate heat within the battery compartment. However, with the development of the energy storage industry, and to facilitate transportation and storage, as well as to increase battery pack density, energy storage equipment is becoming smaller and more modular. Traditional, outdated, large chilled water equipment is no longer able to meet the heat dissipation needs of small, mobile devices. Furthermore, the specifications of chilled water equipment are configured based on the cooling requirements of the energy storage system. After installation, the amount of water produced by the cooling tower is fixed or fluctuates within a narrow range. When the number of energy storage modules is reduced (for example, by reducing battery packs or energy storage cabinets) or when operating under low load, excess cooling capacity results, resulting in energy waste. However, when the number of energy storage modules is increased (for example, by adding battery packs or energy storage cabinets) or when operating under continuous high load, the temperature rise is excessive, resulting in insufficient cooling capacity and an inability to meet cooling requirements.

[0004] Therefore, there is an urgent need in the prior art to invent a chiller system and chiller unit that is suitable for the modern energy storage industry and has strong adaptability. Utility Model Content

[0005] In order to overcome the technical problems that the traditional air-cooling heat dissipation method and traditional large-scale refrigeration water equipment described in the above-mentioned prior art are difficult to meet the cooling needs of the modern energy storage industry, the utility model provides an energy storage chiller system and an integrated chiller unit.

[0006] The technical solution adopted by the present invention to solve the problem is:

[0007] A specific design of an energy storage chiller system is provided, which includes:

[0008] A heat exchange system, comprising a compressor, a first heat exchanger, a throttling element, and a second heat exchanger, connected by a refrigerant pipe to form a refrigerant circulation loop;

[0009] A water system, comprising a water tank and a water pump, wherein the water tank, the water pump and the second heat exchanger are connected by water pipes to form a water circulation loop;

[0010] Among them, the water pipe includes a water inlet pipe, a water outlet pipe, a water supply pipe and a water make-up pipe. The water inlet pipe is connected to the water inlet of the second heat exchanger and the water outlet of the equipment terminal. The water outlet pipe is connected to the water outlet of the second heat exchanger and the water inlet of the equipment terminal. The water pump is located in the water inlet pipe. The water tank is connected to the water inlet pipe through the water supply pipe, and the water make-up pipe is connected to the water supply pipe.

[0011] Furthermore, the water system also includes a first valve, a second valve and a third valve, the first valve is located in the water inlet pipe and / or the water outlet pipe, the second valve is located in the water supply pipe, and the third valve is located in the water supply pipe.

[0012] Furthermore, the water system further includes an auxiliary heating element and / or a semiconductor refrigeration element, and at least one of the auxiliary heating element and the semiconductor refrigeration element is located in the water outlet pipe.

[0013] Based on the same design concept, the utility model also provides a specific design of an integrated chiller, which is applied to the energy storage chiller system described above. The integrated chiller includes a cabinet body, and the heat exchange system and the water system are both installed inside the cabinet body. The water pipe extends from the cabinet body and forms a joint on the outside of the cabinet body.

[0014] Furthermore, the cabinet includes a front frame and a rear plate that are relatively arranged, the first heat exchanger includes a heat exchange tube and a fan, the heat exchange tube is installed on the side of the front frame close to the inside of the cabinet, and the fan is installed on the side of the front frame away from the inside of the cabinet, so that the heat exchange tube and the fan are arranged correspondingly; the water inlet pipe, the water outlet pipe and the water supply pipe extend from the rear plate, and form a first joint, a second joint and a third joint on the outside of the rear plate, respectively.

[0015] Furthermore, the integrated chiller also includes a controller, the cabinet includes a bottom plate and a top frame, the compressor and the water pump are installed on the bottom plate; the controller is installed on the top frame, and the wiring port of the controller faces the rear plate and extends from the rear plate.

[0016] Furthermore, the connector is arranged close to the bottom plate, the wiring port is arranged close to the top frame, and a plurality of heat dissipation holes are provided in the area of ​​the rear plate between the connector and the wiring port.

[0017] In another preferred embodiment of the present invention, a technical solution for the structural design and installation of the cabinet 3 is provided.

[0018] In this preferred embodiment, the cabinet includes a side panel, the water tank and the second heat exchanger are mounted on the side panel, and the water tank and the second heat exchanger are located between the compressor and the water pump below and the controller above.

[0019] Furthermore, the integrated chiller also includes an L-shaped guard plate, which includes a first side surface and a second side surface. The L-shaped guard plate is detachably installed on the cabinet body, and after the L-shaped guard plate is installed, the first side surface is arranged close to the top of the top frame, and the second side surface is located on the opposite side of the side panel.

[0020] Furthermore, the integrated chiller also includes at least two shock-absorbing pads, wherein one of the shock-absorbing pads covers at least a portion of the structural arrangement at the bottom of the cabinet, and the other shock-absorbing pad covers at least a portion of the structural arrangement at the top of the cabinet.

[0021] In summary, the energy storage chiller system and integrated chiller provided by the present invention have at least the following technical effects compared to the prior art:

[0022] 1) The energy storage chiller system of the present invention includes a heat exchange system and a water system. The heat exchange system is used to achieve cooling or heating through the circulation of a refrigerant, and the water system is generally used to achieve cooling or heat transfer through water circulation. The water system's inlet and outlet pipes are connected to the energy storage device terminals to achieve water circulation; the water system's water supply pipe connects the water inlet pipe and the water tank, and the water supply pipe of the water system connects to the water supply pipe. Through this design, the amount of circulating water in the water system can be adjusted to match the amount of cold water output by the energy storage chiller system with the actual cooling requirements of the energy storage device terminals. When the energy storage module is increased or continuously operating at high load, the water tank supplies water to the water inlet pipe through the water supply pipe. If the water tank is insufficient, it can be replenished through the water supply pipe to avoid insufficient cooling capacity and failure to meet cooling requirements. When the energy storage module is reduced or operating at low load, the water tank recovers excess water through the water supply pipe. When the water tank is full, it can also discharge excess water through the water supply pipe to avoid excess cooling capacity and energy waste.

[0023] 2) The integrated chiller of the present invention integrates the heat exchange system and the water system inside the cabinet, forming a modular structure as a whole. The water pipes of the water system extend from the cabinet and form joints on the outside of the cabinet, which are used to connect to the energy storage device terminal after external pipes or directly connect to the circulating water pipes of the energy storage device terminal to transport cold water for cooling. Through the modular structural design, while ensuring that the chiller has complete heat exchange and water circulation functions, it can also make full use of the internal space of the cabinet to achieve a miniaturized design of the chiller. In addition, the modularization of the unit facilitates production assembly, remote transportation, disassembly and maintenance, etc. During installation, a single cabinet module can be directly placed in the cabinet of the energy storage device, in a container, or in the empty space of the battery pack partition, and then the external pipes can be connected for independent use, which is easy to operate; it can also be used in conjunction with cabinet modules, chilled water equipment or air-cooled heat dissipation devices of other specifications to meet the cooling requirements of different energy storage terminal equipment and further improve adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the energy storage chiller system of the present invention;

[0025] Figure 2 This is a schematic structural diagram of the integrated chiller of the present utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the integrated chiller of the present invention after the L-shaped guard plate is removed;

[0027] Figure 4 This is a schematic structural diagram of the L-shaped guard plate of the present invention;

[0028] The meanings of the reference numerals are as follows:

[0029] 1. Heat exchange system; 11. Compressor; 12. First heat exchanger; 121. Heat exchange tube; 122. Fan; 13. Throttling element; 14. Second heat exchanger; 2. Water system; 21. Water tank; 22. Water pump; 23. Water inlet pipe; 231. First joint; 24. Water outlet pipe; 241. Second joint; 25. Water supply pipe; 26. Water supply pipe; 261. Third joint; 27. Auxiliary heating element / semiconductor refrigeration element; 3. Cabinet; 31. Front frame; 32. Rear panel; 321. Heat dissipation hole; 33. Bottom panel; 34. Top frame; 35. Side panel; 4. Controller; 41. Wiring port; 5. L-shaped guard plate; 51. First side; 52. Second side. DETAILED DESCRIPTION

[0030] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] Example 1

[0034] In the first embodiment of the present utility model, a technical solution for the specific design of an energy storage chiller system is provided.

[0035] See also Figure 1 As shown, according to the technical solution of this embodiment, the energy storage chiller system includes a heat exchange system 1, which includes a compressor 11, a first heat exchanger 12, a throttling element 13, and a second heat exchanger 14. The compressor 11, the first heat exchanger 12, the throttling element 13, and the second heat exchanger 14 are connected by a refrigerant pipe to form a refrigerant circulation loop. Specifically, the first heat exchanger 12 and the second heat exchanger 14 can be used as the condenser and evaporator of the heat exchange system 1, respectively. In this case, the energy storage chiller system is used to cool water; the first heat exchanger 12 and the second heat exchanger 14 can also be used as the evaporator and condenser of the heat exchange system 1, respectively. In this case, the energy storage chiller system is used to produce hot water.

[0036] See also Figure 1 As shown, the energy storage chiller system also includes a water system 2, which includes a water tank 21 and a water pump 22. The water tank 21, the water pump 22 and the second heat exchanger 14 are connected by water pipes to form a water circulation loop. Specifically, the water pipes of the water system 2 include an inlet pipe 23 and an outlet pipe 24. The inlet pipe 23 connects the water inlet of the second heat exchanger 14 and the water outlet of the equipment terminal. The outlet pipe 24 connects the water outlet of the second heat exchanger 14 and the water inlet of the equipment terminal. The water pump 22 is located in the inlet pipe 23. In the water circulation loop, the water medium completes heat exchange with the second heat exchanger 14 to become low-temperature cooling water, and then enters the equipment terminal through the outlet pipe 24 to cool it down. Then, under the action of the water pump 22, it is transported back to the second heat exchanger 14 through the inlet pipe 23 for heat exchange.

[0037] In the technical solution of this embodiment, the water pipes of the water system 2 also include a water supply pipe 25 and a water replenishment pipe 26. The water tank 21 is connected to the water inlet pipe 23 via the water supply pipe 25, and the water replenishment pipe 26 is connected to the water supply pipe 25. The water tank 21 supplies water to the water system 2 through the water supply pipe 25 to provide water, or recovers water from the water system 2 through the water supply pipe 25 to store water. The water replenishment pipe 26 can supply water to the water supply pipe 25 to replenish water when the water tank 21 is empty or nearly empty, or can discharge excess water to drain water when the water tank 21 is full or nearly full. Specifically, when energy storage modules are added (for example, battery packs, energy storage cabinets, etc.) or when operating under continuous high load, the water tank 21 supplies water to the water inlet pipe 23 via the water supply pipe 25. When the water tank 21 is insufficient, it can be replenished through the water replenishment pipe 26 to avoid insufficient cooling capacity and failure to meet cooling requirements. When the energy storage module is reduced (for example, the battery pack, energy storage cabinet, etc. are reduced) or the system is operated at low load, the water tank 21 recovers excess water medium through the water supply pipe 25. When the water tank 21 reaches full load, the excess water can be discharged through the water supply pipe 26 to avoid excess cooling and energy waste.

[0038] Preferably, the capacity of the water tank 21 can be designed according to the actual cooling demand, or the water tank 21 can be replaced according to the actual cooling demand.

[0039] In particular, the device terminal described in the present invention is a device terminal of an energy storage system, which can be a water circulation pipe, a liquid cooling system, a coil or other device of the energy storage device.

[0040] In a preferred embodiment of the present invention, the water system 2 further includes a first valve, a second valve, and a third valve (not shown in the figure). The first valve is located in the water inlet pipe 23 and / or the water outlet pipe 24, the second valve is located in the water supply pipe 25, and the third valve is located in the water supply pipe 26. The functions of the first valve, the second valve, and the third valve are as follows:

[0041] The first valve is used to control the on / off state of the water circulation loop. The opening and closing state of the first valve is determined according to whether the energy storage device terminal is running and whether there is a cooling demand. When the energy storage device terminal heats up to a temperature exceeding the preset temperature, the first valve opens and the water pump 22 starts working.

[0042] The second valve is used to control the on-off of the water supply pipe 25. When the water system needs to increase the amount of cooling water (when the cooling capacity is insufficient) or reduce the amount of cooling water (when the cooling capacity is excessive), the second valve is opened, and the water tank 21 transports water medium to the water system 2 through the water supply pipe 25 to supply water, or recovers the water medium of the water system 2 through the water supply pipe 25 to store water.

[0043] The third valve is used to control the on-off of the water supply pipe 26. When the water volume of the water tank 21 is empty, nearly empty, full or nearly full, the third valve is opened to replenish the water medium or discharge excess water through the water supply pipe 26.

[0044] In particular, the water medium replenished through the water replenishment pipe 26 can directly enter the water inlet pipe 23 through the water supply pipe 25 to participate in the cooling water circulation; it can also enter the water tank 21 for storage first, and then be released into the water circulation loop when water is needed later.

[0045] Further, see Figure 1 As shown, the water system 2 further includes an auxiliary heating element 27 and / or a semiconductor cooling element 27, at least one of which is located in the water outlet pipe 24. The auxiliary heating element 27 is used when the energy storage chiller system is heating. In this case, the second heat exchanger 14 functions as a condenser, and the water outlet pipe 24 flows with high-temperature hot water after heat exchange with the second heat exchanger 14. The semiconductor cooling element 27 is used when the energy storage chiller system is cooling. In this case, the second heat exchanger 14 functions as an evaporator, and the water outlet pipe 24 flows with low-temperature cooling water after heat exchange with the second heat exchanger 14.

[0046] In particular, a four-way valve is provided in the heat exchange system 1, through which the flow path of the refrigerant in the refrigerant circulation loop is changed, thereby realizing the switching of the first heat exchanger 12 and the second heat exchanger 14 between the condenser and the evaporator, and the water system 2 is switched between the cooling water mode (for cooling) and the hot water mode (for heating).

[0047] Example 2

[0048] Based on the same design concept, the present invention also provides an embodiment of an integrated chiller, which is applied to the energy storage chiller system described in the above embodiments.

[0049] See also Figure 2 and Figure 3As shown, in the technical solution of this embodiment, the integrated chiller includes a cabinet 3, and the heat exchange system 1 and the water system 2 are both installed inside the cabinet 3, so that the integrated chiller forms a modular structure as a whole. Through the modular structural design, while ensuring that the integrated chiller has complete heat exchange and water circulation functions, it can also make full use of the internal space of the cabinet 3 to achieve a miniaturized design of the chiller. In addition, the modularization of the unit facilitates production assembly, remote transportation, disassembly and maintenance, and other operations. In addition, the water pipes of the water system 2 extend from the cabinet 3, and a joint is formed on the outside of the cabinet 3. The joint is used to connect to the water circulation system / liquid cooling system of the equipment terminal after the external pipe is connected, or directly connected to the circulating water pipe of the energy storage device terminal to transport cold water for cooling. When installing the integrated chiller of the present invention, a single cabinet 3 can be directly placed in a cabinet of an energy storage device, a container, or an empty space on a battery pack partition, and then the pipes can be connected to the joint for independent use, which is easy to operate. It can also be used in conjunction with cabinets 3, chilled water equipment, or air-cooled heat dissipation devices of other specifications to meet the cooling requirements of different energy storage terminal equipment and improve the adaptability of the chiller.

[0050] See also Figure 2 and Figure 3 As shown, in a preferred embodiment of this invention, the cabinet 3 includes a front frame 31 and a rear panel 32 arranged in opposite directions. The front frame 31 is preferably a square frame structure and can be integrally formed on the cabinet 3 or mounted to the main structure of the cabinet 3 via welding after forming. The first heat exchanger 12 includes a heat exchange tube 121 and a fan 122. The heat exchange tube 121 is mounted on a side of the front frame 31 close to the interior of the cabinet 3, and the fan 122 is mounted on a side of the front frame 31 away from the interior of the cabinet 3. The heat exchange tube 121 and the fan 122 are arranged in correspondence with each other and a preset distance is set between them.

[0051] Heat exchange tubes 121 are used to exchange heat with the outside air, thereby providing cooling or heating to the refrigerant in the heat exchange loop. Extending heat exchange tubes 121 vertically maximizes the space in cabinet 3 while increasing the heat exchange area between heat exchange tubes 121 and the outside air, thereby improving heat exchange efficiency. Fan 122 is used to increase the air convection velocity inside and outside cabinet 3, thereby further improving the heat exchange efficiency between heat exchange tubes 121 and the outside air, thereby increasing the cooling or heating capacity of heat exchange system 1.

[0052] In particular, the number of fans 122 can be set to multiple, preferably three in this embodiment, and arranged in sequence along the vertical direction.

[0053] The water inlet pipe 23, water outlet pipe 24, and water supply pipe 26 within the cabinet 3 extend from the rear panel 32 and form a first joint 231, a second joint 241, and a third joint 261 on the outside of the rear panel 32, respectively. During installation, the first joint 231 is connected to the output water pipe of the energy storage terminal device or the output water pipe of the liquid cooling system, and the second joint 241 is connected to the input water pipe of the energy storage terminal device or the input water pipe of the liquid cooling system, so that the second heat exchanger 14 and the terminal device form the main circuit of the water circulation loop through the pipes. The third joint 261 is connected to the pipe of an external water storage device (such as a cooling tower or a well), so that the water tank 21 or the water system can be replenished or drained through the water supply pipe 26.

[0054] In particular, the first connector 231, the second connector 241 and the third connector 261 may preferably adopt a threaded pipe structure, with internal or external threads provided on the inner or outer sides thereof, and threadedly connected to the pipelines of the energy storage terminal device or the external water storage device.

[0055] In the technical solution of this embodiment, when the integrated chiller is installed, the front frame 31 of the cabinet 3 is located on the front side, that is, facing the outside of the energy storage device, to facilitate heat exchange between the first heat exchanger 12 and the outside air; the rear plate 32 is located on the rear side, that is, facing the inside of the energy storage device, to facilitate connection with the pipeline of the energy storage device through the first joint 231, the second joint 241, and the pipeline of the external water storage device through the third joint 261.

[0056] See also Figure 3 As shown, in another preferred embodiment of the present invention, the integrated chiller further includes a controller 4. The cabinet 3 includes a bottom plate 33 and a top frame 34. The compressor 11 and the water pump 21 are mounted on the bottom plate 33, and the controller 4 is mounted on the top frame 34. That is, the controller 4, the compressor 11, and the water pump 21 are arranged in a top-to-bottom arrangement within the cabinet 3. The controller 4 is electrically connected to the various components of the heat exchange system 1 and the water system 2 via wires, and is used to control the startup, operation, and shutdown of the various components according to the control panel instructions or preset parameters.

[0057] Specifically, the compressor 11 and water pump 21 are heavy fluid machines that vibrate significantly during startup. Mounting the compressor 11 and water pump 21 on the bottom plate 33 of the cabinet 3 using brackets, cushions, and other structures ensures smooth operation and reduces operating noise. The controller 4's housing is configured as a horizontally extending, long, rectangular plate structure. Mounting it on the top frame 34 maximizes the use of the space within the cabinet 3 and allows for optimal positioning away from the compressor 11 and water pump 21, preventing heat generated during operation from affecting their normal operation.

[0058] The wiring port 41 of the controller 4 faces the rear panel 32 and extends from the rear panel 32, so as to facilitate electrical connection with the central controller or the control panel after external wires are connected, thereby receiving electrical signals from the user operating the control panel or receiving control signals from the central controller, and the position of the wiring port 41 is opposite to the front frame 33 to avoid the wire connection being affected by the heat of the first heat exchanger 12.

[0059] Further, see Figure 3 As shown, the joint of the water pipe is arranged near the bottom plate 33, the wiring port 41 is arranged near the top frame 34, and the area of ​​the back plate 32 between the joint and the wiring port 41 is provided with a plurality of heat dissipation holes 321, that is, the heat dissipation holes 321 are located in the middle area between the joint and the wiring port 41. From a vertical perspective, the controller 4, the compressor 11 and the water pump 21 are respectively located at the upper and lower sides of the heat dissipation hole 321 area. Specifically, the upper controller 4 and the lower compressor 11 and water pump 21 will generate more heat during operation. Considering the space factor of the miniaturization of the cabinet 3, it is not convenient to set up separate heat dissipation positions or add heat dissipation structures for the above components. In this embodiment, by setting heat dissipation holes 321 in the area between the controller 4, the compressor 11 and the water pump 21, the heat of the two can be discharged in time, and the hot air generated by the two can be prevented from flowing upward or downward and affecting each other's working environment.

[0060] In particular, a small fan may be provided on the inner side or the outer side of the heat dissipation through hole 321 , thereby accelerating the air flow inside and outside the cabinet 3 and improving the heat dissipation efficiency.

[0061] Example 3

[0062] In the third embodiment of the present invention, a technical solution for the structural design and installation of the cabinet 3 is provided based on the second embodiment.

[0063] See also Figure 2 and Figure 3 As shown, in the technical solution of this embodiment, the cabinet 3 includes side panels 35, with a top frame 34 above and a bottom panel 33 below, and a front frame 31 and a rear panel 32 on the front and back sides, respectively. The water tank 21 and the second heat exchanger 14 are mounted to the side panels 35 via a bracket or other structure. After installation, the water tank 21 and the second heat exchanger 14 are located between the compressor 12 and the water pump 22 below and the controller 4 above. Specifically, because the water tank 21 and the second heat exchanger 14 do not vibrate during operation and are not easily affected by high-temperature environments, the installation stability requirements are not as high as those for the compressor 11 and the water pump 21, and therefore they can be installed on the inner side of the side panels 35.

[0064] After installation, the first heat exchanger 12 is located in the front area inside the cabinet 3, the heat dissipation hole 321 is located in the rear area inside the cabinet 3, the compressor 11 and the water pump 21 are located in the lower area inside the cabinet 3, the controller 4 is located in the upper area inside the cabinet 3, and the water tank 21 and the second heat exchanger 14 are located in the middle area inside the cabinet 3. The various components inside the cabinet 3 are staggered to maximize the use of the internal space of the cabinet 3. While ensuring the stable operation of the heat exchange system 1 and the water system 2, it is further conducive to the miniaturization design of the chiller.

[0065] In addition, the chiller needs to adjust the model and specifications of the water tank 21 and the second heat exchanger 14 according to the equipment terminals with different cooling requirements. The water tank 21 and the second heat exchanger 14 are arranged in the middle area inside the cabinet 3, which can facilitate the operator to replace the two and facilitate the layout design of the water inlet pipe 23, the water outlet pipe 24, the water supply pipe 25 and the water supply pipe 26.

[0066] Further, see Figure 2-Figure 4 As shown, the integrated chiller also includes an L-shaped guard plate 5, which includes a first side 51 and a second side 52. The L-shaped guard plate 5 is detachably mounted on the cabinet 3. After the L-shaped guard plate 5 is installed, the first side 51 of the L-shaped guard plate 5 is positioned closely above the top frame 34, and the second side 52 of the L-shaped guard plate 5 is positioned on the opposite side of the side panel 35. Specifically, before the L-shaped guard plate 5 is installed, the cabinet 3 is a semi-open cabinet without any blocking structure opposite the side panel 35. This structural design facilitates user access to various components within the cabinet 3, such as assembly, disassembly, maintenance, repair, and replacement.

[0067] After the L-shaped guard plate 5 is installed, the cabinet 3 forms a relatively closed structure, ensuring that the various components of the heat exchange system 1 and the water system 2 operate stably within the cabinet 3 without being disturbed by the external environment. Furthermore, after the L-shaped guard plate 5 is installed in the cabinet 3, the upward abutting force from the top of the cabinet 3 causes the first side surface 51 to support the L-shaped guard plate 5, improving the overall structural stability. The second side surface 52 serves to shield and protect the various components within the cabinet 3, forming a relatively closed, modular structure for the cabinet 3.

[0068] In particular, the L-shaped guard plate 5 can be fastened to the cabinet body 3 by installing snaps at any one or both of the first side surface 51 and the second side surface 52, or can be installed on the cabinet body 3 by connecting parts such as bolts or screws, making assembly and disassembly operations simple.

[0069] See also Figure 2 and Figure 3As shown, in a preferred embodiment of the present invention, the integrated chiller further includes at least two shock-absorbing pads 6, wherein one shock-absorbing pad 6 covers at least a portion of the structural arrangement at the bottom of the cabinet 3, and the other shock-absorbing pad 6 covers at least a portion of the structural arrangement at the top of the cabinet 3. The shock-absorbing pad 6 is used to provide flexible contact and buffering and shock-absorbing functions. Specifically, the integrated chiller of the present invention is a modular structure. When installing, the cabinet 3 is directly placed in a cabinet of an energy storage device, a container, or a battery pack partition space. When disassembling or maintaining, the cabinet 3 can be directly moved out from the above-mentioned position. Therefore, the cabinet 3 does not need to be rigidly assembled with the equipment terminal by means of bolt connection or flange connection, but is placed in a location such as an energy storage device cabinet through the shock-absorbing pad 6, which is convenient for disassembly, maintenance, remote transportation, and other operations.

[0070] In particular, the shock-absorbing pad 6 may preferably be made of rubber, silicone, foam or other flexible materials.

[0071] Optionally, the number of shock-absorbing pads 6 is set to 2, which are respectively located at the upper and lower parts of the cabinet 3. In this case, the shock-absorbing pads 6 are U-shaped. After installation, the upper shock-absorbing pad 6 covers the entire top area and part of the left and right areas of the cabinet 3, and the lower shock-absorbing pad 6 covers the entire bottom area and part of the left and right areas of the cabinet 3.

[0072] Optionally, the number of shock-absorbing pads 6 is set to four, two of which are located above the cabinet 3 and the other two are located below the cabinet 3. In this case, the shock-absorbing pads 6 are L-shaped. After installation, the upper shock-absorbing pad 6 covers the entire top area and part of the left side of the cabinet 3, and the other upper shock-absorbing pad 6 covers the entire top area and part of the right side of the cabinet 3; the lower shock-absorbing pad 6 covers the entire bottom area and part of the left side of the cabinet 3, and the other lower shock-absorbing pad 6 covers the entire bottom area and part of the right side of the cabinet 3.

[0073] In summary, compared to traditional air-cooled heat dissipation methods and traditional large-scale refrigeration water equipment, the energy storage chiller system provided by the present invention can adjust the amount of circulating water in the water system, so that the amount of cold water output by the energy storage chiller system matches the actual cooling requirements of the energy storage device terminal. It has strong adaptability and can avoid technical problems such as insufficient or excessive cooling capacity. In addition, the integrated chiller provided by the present invention can make full use of the internal space of the cabinet through a modular structural design method to achieve a miniaturized design of the chiller. In addition, the modularization of the unit facilitates production assembly, remote transportation, disassembly and maintenance, and other operations. After installation, it can be used independently or in conjunction with cabinet modules, chilled water equipment or air-cooled heat dissipation devices of other specifications to meet the cooling requirements of different energy storage terminal equipment and further improve the adaptability of the chiller.

[0074] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. Energy storage chiller system, characterized in that, include: A heat exchange system, comprising a compressor, a first heat exchanger, a throttling element, and a second heat exchanger, connected by a refrigerant pipe to form a refrigerant circulation loop; A water system, comprising a water tank and a water pump, wherein the water tank, the water pump and the second heat exchanger are connected by water pipes to form a water circulation loop; Among them, the water pipe includes a water inlet pipe, a water outlet pipe, a water supply pipe and a water make-up pipe. The water inlet pipe is connected to the water inlet of the second heat exchanger and the water outlet of the equipment terminal. The water outlet pipe is connected to the water outlet of the second heat exchanger and the water inlet of the equipment terminal. The water pump is located in the water inlet pipe. The water tank is connected to the water inlet pipe through the water supply pipe, and the water make-up pipe is connected to the water supply pipe.

2. The energy storage chiller system according to claim 1, characterized in that: The water system further includes a first valve, a second valve and a third valve. The first valve is located in the water inlet pipe and / or the water outlet pipe, the second valve is located in the water supply pipe, and the third valve is located in the water supply pipe.

3. The energy storage chiller system according to claim 2, characterized in that: The water system further includes an auxiliary heating element and / or a semiconductor refrigeration element, and at least one of the auxiliary heating element and the semiconductor refrigeration element is located in the water outlet pipe.

4. An integrated chiller comprising the energy storage chiller system according to any one of claims 1 to 3, characterized in that: It comprises a cabinet body, the heat exchange system and the water system are both installed inside the cabinet body, the water pipes extend from the cabinet body and form joints on the outside of the cabinet body.

5. The integrated chiller according to claim 4, characterized in that: The cabinet includes a front frame and a rear plate arranged opposite to each other. The first heat exchanger includes a heat exchange tube and a fan. The heat exchange tube is installed on a side of the front frame close to the interior of the cabinet, and the fan is installed on a side of the front frame away from the interior of the cabinet, so that the heat exchange tube and the fan are arranged correspondingly. The water inlet pipe, the water outlet pipe and the water supply pipe extend from the rear plate and form a first joint, a second joint and a third joint on the outside of the rear plate, respectively.

6. The integrated chiller according to claim 5, characterized in that: It also includes a controller, the cabinet includes a bottom plate and a top frame, the compressor and the water pump are installed on the bottom plate; the controller is installed on the top frame, and the wiring port of the controller faces the rear plate and extends from the rear plate.

7. The integrated chiller according to claim 6, characterized in that: The connector is arranged close to the bottom plate, the wiring port is arranged close to the top frame, and a plurality of heat dissipation holes are arranged in the area of ​​the rear plate between the connector and the wiring port.

8. The integrated chiller according to claim 6, characterized in that: The cabinet includes a side panel, the water tank and the second heat exchanger are installed on the side panel, and the water tank and the second heat exchanger are located between the compressor and the water pump below the side panel and the controller above the side panel.

9. The integrated chiller according to claim 8, characterized in that: It also includes an L-shaped guard plate, which includes a first side and a second side. The L-shaped guard plate is detachably installed on the cabinet body, and after the L-shaped guard plate is installed, the first side is set close to the top of the top frame, and the second side is located on the opposite side of the side panel.

10. The integrated chiller according to claim 4, characterized in that: It also includes at least two shock-absorbing pads, wherein one of the shock-absorbing pads covers at least a portion of the structural arrangement at the bottom of the cabinet, and the other shock-absorbing pad covers at least a portion of the structural arrangement at the top of the cabinet.

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