Water chilling unit and temperature control system

Abstract

The utility model provides a water chilling unit and a temperature control system. The water chilling unit comprises a frame, and the frame comprises an upper-layer frame and a lower-layer frame; the upper-layer frame is provided with a top sealing plate and a side sealing plate; the lower-layer frame is provided with a bottom sealing plate; the fan is mounted on the top sealing plate; the first heat exchanger is mounted on a bottom cross beam of the upper-layer frame; the water system assembly is mounted in the lower-layer frame and is close to the bottom sealing plate; the frame is provided with a maintenance side face, the upper-layer frame is correspondingly provided with an upper-layer maintenance side face, the lower-layer frame is correspondingly provided with a lower-layer maintenance side face, and the water system assembly is arranged close to the lower-layer maintenance side face. The water chilling unit and the temperature control system are compact in structure, small in size and easy to maintain.

Description

Technical Field

[0001] The present application relates to the technical field of temperature control equipment, and in particular to a chiller and a temperature control system. Background Art

[0002] In recent years, with the continuous attention and investment in renewable energy and green technology around the world, the energy storage industry has developed rapidly. As an important means to achieve efficient energy utilization and cope with fluctuations in energy demand, energy storage technology has gradually penetrated into multiple fields such as electricity, transportation, and industry. As an important part of the energy storage system, the stability and reliability of the performance of the energy storage cabinet are directly related to the operation effect of the entire energy storage system. As an important auxiliary equipment of the energy storage cabinet, the chiller is mainly used to control the temperature of the internal environment of the energy storage cabinet to ensure that it works in the best condition. Therefore, with the rapid development of the energy storage industry and the widespread application of energy storage cabinets, the demand for chiller styles that are compatible with energy storage cabinets has become increasingly prominent.

[0003] In the process of implementing this application, the inventor found that there are at least the following problems in the prior art: At present, there are many chillers on the market that are compatible with energy storage cabinets of different models and specifications. However, most of these chillers have problems such as large space occupation, inconvenient component maintenance and high manufacturing cost. Summary of the invention

[0004] Based on this, the present application provides a chiller and a temperature control system to improve the problems of large occupied space and inconvenient component maintenance in the prior art.

[0005] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0006] On the one hand, an embodiment of the present application provides a chiller, comprising:

[0007] A frame, the frame comprising an upper frame and a lower frame; the upper frame is provided with a top sealing plate and a side sealing plate; the lower frame is provided with a bottom sealing plate;

[0008] A fan is installed on the top cover plate;

[0009] A first heat exchanger is mounted on the bottom crossbeam of the upper frame;

[0010] A water system component is installed in the lower frame and close to the bottom cover plate;

[0011] The frame is provided with a maintenance side, the upper frame is correspondingly provided with an upper maintenance side, the lower frame is correspondingly provided with a lower maintenance side, and the water system component is arranged close to the lower maintenance side.

[0012] In one of the embodiments, the chiller further includes an electrical control component and a channel air inlet disposed on the lower maintenance side, and the channel air inlet is disposed close to the bottom cover plate.

[0013] In one embodiment, the water system components include a water pump, a second heat exchanger, an expansion tank and a water supply tank;

[0014] The water pump is installed on the bottom sealing plate, and is spaced apart from the water replenishing tank near the channel air inlet to form a first row of components; the second heat exchanger is installed on the bottom sealing plate, and is spaced apart from the expansion tank in sequence to form a second row of components; the second row of components is located on the side of the first row of components away from the channel air inlet, and the expansion tank is arranged on the side close to the water replenishing tank; the water inlet of the water pump is arranged close to the water replenishing tank, and the water outlet of the water pump is arranged close to the second heat exchanger, and the water outlet of the water pump is connected to the water inlet of the second heat exchanger; the expansion tank and the water replenishing tank are respectively connected to the water inlet of the water pump through pipelines.

[0015] In one of the embodiments, a detachable mesh plate is provided at the air inlet of the channel.

[0016] In one embodiment, the water outlet of the water pump is arranged at the top of the water pump, the water outlet of the water pump is connected to a vertical pipeline, the vertical pipeline is arranged parallel to the second heat exchanger, and an exhaust valve is provided at the top of the vertical pipeline.

[0017] In one embodiment, the chiller further includes a heater, and two ends of the heater are respectively connected to the vertical pipeline and the water inlet of the second heat exchanger.

[0018] In one embodiment, the chiller further includes a bypass pipe and a heat exchange outlet pipe, one end of the heat exchange outlet pipe is connected to the water outlet of the second heat exchanger, and both ends of the bypass pipe are respectively connected to the vertical pipe and the heat exchange outlet pipe.

[0019] In one of the embodiments, the water inlet of the water pump is connected to the water inlet pipeline through a filter.

[0020] In one embodiment, the second row of components further includes a compressor, which is disposed close to the second heat exchanger and is connected to the refrigerant channels of the first heat exchanger and the second heat exchanger, respectively.

[0021] On the other hand, an embodiment of the present application provides a temperature control system, including the chiller as described above.

[0022] The present application has at least the following beneficial effects: the chiller provided in the embodiment of the present application has a frame divided into an upper frame and a lower frame, the fan and the first heat exchanger are located in the upper frame, the fan is located at the uppermost end of the chiller, an air cavity is formed between the first heat exchanger and the fan, and the air cavity is closed by a top sealing plate and a side sealing plate, which can prevent air leakage in the air cavity and enhance the heat exchange effect of the first heat exchanger, and the setting height of the first heat exchanger is a reasonable position for the fan air inlet. One side of the frame is set as a maintenance side, and each internal device can be maintained through this side, which increases the convenience of maintenance. The water system assembly is installed in the lower frame, which makes the overall structure of the chiller compact, reduces the overall volume of the unit, and facilitates maintenance operations. The temperature control system provided in the embodiment of the present application includes the above-mentioned chiller, and therefore also has the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the internal structure of a chiller from one perspective of an embodiment of the present application.

[0024] Figure 2 A schematic diagram of the internal structure of the chiller from another perspective of an embodiment of the present application.

[0025] Figure 3 Schematic diagram of the structure of some internal components (refrigerant system) of the chiller according to an embodiment of the present application.

[0026] The meanings of the symbols in the accompanying drawings are as follows:

[0027] 1. Frame; 11. Mesh plate; 12. Upper frame; 121. Top cover plate; 122. Side cover plate; 123. Bottom crossbeam; 124. Upper maintenance side; 13. Bottom cover plate; 14. Lower maintenance side; 15. Channel air inlet; 2. First heat exchanger; 3. Second heat exchanger; 31. Heat exchange water outlet pipeline; 311. Safety valve; 4. Expansion tank; 5. Make-up water tank; 6. Fan; 7. Electronic control component; 8. Heater; 81. Chuck; 9. Water pump; 91. Bypass pipe; 92. Vertical pipeline; 921. Exhaust valve; 93. Water inlet pipeline; 931. Liquid injection port; 94. Filter; 10. Compressor. DETAILED DESCRIPTION

[0028] The technical solution of the present application is further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments of the specification.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the implementation of this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] The temperature control system of the embodiment of the present application includes a chiller and a temperature control module. The two ends of the temperature control module are respectively connected to the water inlet and the water outlet of the chiller. The temperature control module is used for heat exchange with the load equipment to control the temperature of the load equipment.

[0033] The chiller of the present application is a small cooling capacity equipment layout method under the large framework required by the battery energy storage cabinet, which makes full use of space, optimizes the distribution of various components, reduces unnecessary pipeline and pipe fitting design, reduces manufacturing and maintenance costs, and takes into account the front appearance. The overall frame of the chiller is a rectangular parallelepiped, which is suitable for the user's specific large energy storage cabinet, and can be adapted to the structure of the upper air duct of the energy storage cabinet.

[0034] Specifically, see Figure 1 and Figure 2 The chiller of this embodiment includes a frame 1, a fan 6, a first heat exchanger 2 and a water system component.

[0035] The frame 1 includes an upper frame 12 and a lower frame. The upper frame 12 is provided with a top sealing plate 121 and a side sealing plate 122, wherein there are multiple side sealing plates 122. The top sealing plate 121 and the side sealing plates 122 are used to seal the upper side, front side, rear side, left side and right side of the upper frame 12. The lower frame is provided with a bottom sealing plate 13. The frame 1 is provided with a maintenance side. The upper frame 12 is provided with an upper maintenance side 124 correspondingly, and the lower frame is provided with a lower maintenance side 14 correspondingly. The maintenance side is used to maintain the internal components. The chiller is placed in the energy storage cabinet, and the maintenance side faces the outside of the energy storage cabinet. In this way, the internal components of the chiller can be easily maintained through the maintenance side.

[0036] The fan 6 is installed on the top sealing plate 121, the first heat exchanger 2 is installed on the bottom beam 123 of the upper frame 12, and the water system components are installed in the lower frame and arranged close to the bottom sealing plate 13 and the lower maintenance side 14; wherein, there can be multiple fans 6, the top sealing plate 121 and the side sealing plate 122 close the upper frame 12 to form an air cavity, and the fan 6 corresponds to the heat exchange area of ​​the first heat exchanger 2, so that after the external air enters the first heat exchanger 2, it is extracted from the fan 6.

[0037] like Figure 2 As shown, specifically, in this embodiment, the chiller further includes an electric control component 7. The upper portion of the lower maintenance side 14 is provided with the electric control component 7, and the lower portion of the lower maintenance side 14 is provided with a channel air inlet 15, which is arranged close to the bottom sealing plate 13.

[0038] In this embodiment, if Figure 2 and 3 As shown, the water system components include a water pump 9, a second heat exchanger 3, an expansion tank 4 and a water supply tank 5. The water pump 9 and the water supply tank 5 are arranged at intervals in the lower frame near the channel air inlet 15 to form a first row of components; the second heat exchanger 3 is installed on the bottom sealing plate 13, and is arranged at intervals with the expansion tank 4 in sequence to form a second row of components; the second row of components is located on the side of the first row of components away from the channel air inlet 15, and the expansion tank 4 is arranged on the side close to the water supply tank 5; the water inlet of the water pump 9 is arranged close to the water supply tank 5, and the water outlet of the water pump 9 is arranged close to the second heat exchanger 3, and the water outlet of the water pump 9 is connected to the water inlet of the second heat exchanger 3; the expansion tank 4 and the water supply tank 5 are connected to the water inlet of the water pump 9 through pipelines respectively.

[0039] Specifically, in this embodiment, the chiller may further include a compressor 10. The frame 1 of this embodiment is in the shape of a rectangular parallelepiped as a whole, and a bottom crossbeam 123 is provided at the connection between the upper frame 12 and the lower frame, and a connecting crossbeam may also be provided in the middle of the lower frame. The expansion tank 4 and the water supply tank 5 may be fixed on the connecting crossbeam, or fixed on the bottom sealing plate 13.

[0040] like Figure 1 and Figure 2 As shown, the water pump 9, the second heat exchanger 3, the expansion tank 4, the water supply tank 5 and the compressor 10 are all arranged in the lower frame. The frame 1 is provided with a detachable mesh plate 11 at the channel air inlet 15. The mesh plate 11 is located at the lower part of the lower frame and covers the channel air inlet 15. At the same time, a filter (not shown) and other components can be further arranged at the mesh plate 11 to prevent foreign matter from being sucked into the unit in the frame 1 and causing damage to the unit.

[0041] The water pump 9 of this embodiment is arranged in the lower frame near the channel air inlet 15, which is convenient for maintenance of the water pump 9. The water pump 9 is provided with a water outlet and a water inlet. The water outlet of the water pump 9 is arranged at one end of the water pump 9 in the length direction and is arranged near the water replenishment tank 5. The water outlet of the water pump 9 is connected to one end of the water inlet pipe 93 through a filter 94, and the water inlet pipe 93 is also provided with a liquid injection port 931. The bottom of the water replenishment tank 5 and the expansion tank 4 are connected to the water inlet pipe 93 through pipelines respectively. The water inlet of the water pump 9 is arranged close to the water replenishment tank 5 and the expansion tank 4, which can facilitate the connection of the pipelines, reduce the length of the pipelines used, reduce the complexity of the pipelines, facilitate the maintenance of the pipelines, and help to reduce manufacturing costs. Figure 2 and Figure 3 As shown, the water replenishment tank 5 is located in front of the expansion tank 4 (the end of the frame 1 provided with the channel air inlet 15 is the front), and is located above the water inlet of the water pump 9, which can facilitate the replenishment of water to the water system components of the chiller. The water outlet of the water pump 9 is arranged at the top of the water pump 9 and is arranged close to one end of the water inlet. The water inlet is connected to a vertical pipeline 92, and the vertical pipeline 92 is arranged in parallel with the second heat exchanger 3, and an exhaust valve 921 is provided at the top of the vertical pipeline 92. Specifically, an automatic exhaust valve 921 is used in this embodiment. The automatic exhaust valve 921 is located at the highest point of the vertical pipeline 92 and can automatically exhaust the air in the system pipeline.

[0042] The second heat exchanger 3 is located in the middle of the second row of components, and the upper and lower ends are fixedly connected to the bottom crossbeam 123 and the bottom cover plate 13 respectively, and the water inlet of the second heat exchanger 3 is arranged close to the water outlet of the water pump 9, so that the pipelines on the refrigerant side of the chiller are connected with the shortest distance, and the layout of each component is reasonable, and there is no intersection between the pipelines, which is convenient for disassembly and maintenance. The two ends of the heater 8 are respectively connected to the vertical pipeline 92 and the water inlet of the second heat exchanger 3, and the heater 8 can be an electric heater 8, for example. The second heat exchanger 3 and the water pump 9 are connected through the heater 8, which reduces the setting of the pipeline, reduces the complexity of the pipeline, and also reduces the cost. The vertical pipeline 92 is horizontally connected to the heater 8, and the two ends of the heater 8 are directly connected to the vertical pipeline 92 and the second heat exchanger 3 through the chuck 81, which is convenient for disassembly and maintenance, and optimizes the structural space layout. The water inlet of the second heat exchanger 3 is located at the upper part, and the water outlet is located at the lower part. In the opposite direction of the refrigerant flow in the refrigerant channel, the coolant in the water channel of the second heat exchanger 3 performs heat exchange with the refrigerant in the refrigerant channel, thereby realizing cooling of the load equipment. The water outlet of the second heat exchanger 3 is connected to the heat exchange water outlet pipeline 31, and the two ports of the water inlet pipeline 93 and the heat exchange water outlet pipeline 31 are respectively used to connect with the temperature control module to form a circulation loop, thereby realizing temperature control of the load equipment. A bypass pipe 91 can also be set between the heat exchange water outlet pipeline 31 and the vertical pipeline 92, and the two ends of the bypass pipe 91 are respectively connected to the vertical pipeline 92 and the heat exchange water outlet pipeline 31. The diameter of the bypass pipe 91 is smaller than that of the vertical pipe 92 and the heat exchange outlet pipe 31. A bypass pipe 91 with a small diameter is arranged between the water outlet of the water pump 9 and the water outlet of the second heat exchanger 3, which can reduce the flow rate of the refrigerant in the second heat exchanger 3 to balance the distribution of the water flow.

[0043] like Figure 3 As shown, a safety valve 311 can also be provided on the heat exchange water outlet pipeline 31, and the safety valve 311 can safely relieve the pressure of the water system components. The water supply tank 5 is provided with a pressure relief inlet of the safety valve 311, and the coolant flowing out of the safety valve 311 after pressure relief can directly flow into the water supply tank 5, avoiding the coolant from being directly discharged into the energy storage cabinet to cause pollution, and at the same time, the leaked coolant can be reused, avoiding waste, saving energy and cost.

[0044] In order to make the temperature control of the chiller more accurate, a pressure sensor (not shown) and a temperature sensor (not shown) may be respectively provided at the water inlet pipe 93 and the heat exchange water outlet pipe 31 to detect the inlet and outlet temperatures, pressures, etc. of the temperature control module.

[0045] like Figure 2As shown, the compressor 10 is arranged side by side with the second heat exchanger 3 as the power source of the refrigeration system, fixed on the bottom cover plate 13, and arranged on the side close to the water pump 9. The compressor 10 needs to be connected to the refrigerant channel of the second heat exchanger 3. Placing the compressor 10 on the side of the second heat exchanger 3 close to the water pump 9 can avoid the intersection of the pipeline between the compressor 10 and the second heat exchanger 3 and the pipeline of the refrigerant system, making the layout of the pipeline simpler and maintenance more convenient. The outlet and inlet of the compressor 10 are connected to the first heat exchanger 2 and the second heat exchanger 3 respectively. The first heat exchanger 2 is located above the compressor 10, and the pipeline connection is also very convenient.

[0046] like Figure 1 and Figure 2 As shown, the electric control assembly 7 is arranged at the upper part of the lower frame, and the electric control assembly 7 is arranged close to one end of the lower maintenance side 14 of the frame 1, that is, the electric control assembly 7 is arranged close to the outside for easy maintenance. The electric control assembly 7 is arranged in the middle of the height of the chiller, and its height is at a comfortable height for operators to operate, so that the operators can perform daily maintenance and other operations on the inside of the electric control assembly 7.

[0047] The first heat exchanger 2 and the fan 6 are arranged on the upper frame 12. The first heat exchanger 2 is arranged inside the upper frame 12 and fixed on the bottom crossbeam 123. The fan 6 is arranged on the top sealing plate 121. An air cavity is formed between the top sealing plate 121, the side sealing plate 122, the first heat exchanger 2 and the fan 6; the chiller takes in air from the mesh plate 11 and exhausts air from the fan 6. The height of the first heat exchanger 2 is set to a reasonable height for the air inlet of the fan 6 to prevent the air inlet streamline of the fan 6 from being disordered and affecting the performance of the fan. The top sealing plate 121 and the side sealing plate 122 can prevent air leakage in the air cavity. The chiller takes in air from the mesh plate 11 and exhausts air from the unit through the fan 6. The exhaust port of the fan 6 can be connected to the air duct of the energy storage cabinet for air outlet.

[0048] The working principle of the chiller of this embodiment is as follows: the refrigerant flows out of the temperature control module, enters the chiller from the water inlet pipe 93, enters the water pump 9 after filtering impurities through the filter 94, and enters the vertical pipe 92 after being pressurized and accelerated by the water pump 9. The air in the pipe is automatically discharged from the exhaust valve 921 at the top of the vertical pipe 92; a part of the refrigerant enters the refrigerant channel of the second heat exchanger 3 through the heater 8, exchanges heat with the refrigerant in the refrigerant channel of the second heat exchanger 3, and then flows out of the chiller from the heat exchange outlet pipe 31, goes to the temperature control module and exchanges heat with the load equipment, completing a cycle; another part of the refrigerant directly enters the heat exchange outlet pipe 31 from the bypass pipe 91, mixes with the refrigerant flowing out of the refrigerant channel of the second heat exchanger 3, and then flows back to the temperature control module, completing a cycle; wherein, a switch valve can be provided at the bypass pipe 91, which can be opened or closed according to the use requirements, so that the refrigerant enters the heat exchange outlet pipe 31 through or without the bypass pipe 91. The refrigerant flows out from the outlet of the compressor 10, exchanges heat through the first heat exchanger 2 and the second heat exchanger 3, and then flows back to the compressor 10 to complete a refrigerant cycle.

[0049] The chiller of this embodiment is arranged in zones from top to bottom, and each component is arranged reasonably, which is convenient for maintenance, and has a compact structure, which reduces the overall volume of the chiller. The chiller of this embodiment places the water pump, the second heat exchanger, the expansion tank and the water supply tank in order according to the position that is convenient for connection and maintenance, which reduces the length of the pipeline when the components are connected, facilitates assembly, and reduces the cost. At the same time, it makes the overall structure more compact, the overall volume of the chiller smaller, and the pipelines can be arranged without cross-setting, which is convenient for pipeline maintenance. The water pump is a component that needs to be maintained frequently. It is arranged on the side close to the air inlet of the channel to facilitate the maintenance of the water pump. The interval arrangement of the water pump, the second heat exchanger, the expansion tank and the water supply tank is conducive to the inlet and outlet of the air in the shell, avoiding obstruction to the air path.

[0050] The layout of the refrigerant system of the chiller of this embodiment is beautiful and reliable. When observed from below, there are no cross pipes, and all internal components can be clearly seen, which not only ensures the neatness and beauty of the system, but also reduces the investment cost of the system by shortening the spacing between components, making it easy to maintain. The water replenishment tank and expansion tank can replenish water and set the pressure of the refrigerant system, making it stable and reliable.

[0051] The chiller of this embodiment is installed in a specific frame of the energy storage cabinet, and its space utilization is reasonable, which can ensure the safe and reliable operation of the unit, while making it easy to maintain key components, and the connecting pipes and fittings have a simple structure, reducing manufacturing and maintenance costs.

[0052] The chiller can be divided into three major areas from front to back. The front area is composed of a cover plate facing the user end, an electronic control component and a mesh plate; the various components of the chiller are placed in the middle area, which are arranged reasonably up and down; there is no equipment placed in the rear area, and the front area is reasonably used to reduce the number of fixings. The crossbeams and longitudinal beams are used for fixing, which further improves the compactness and maintainability of the unit. The components in the middle area are reasonably placed, the water equipment structure is compact, the distance between the front and rear equipment connecting pipes is short, and heaters are used to replace some pipes. Bypass pipes are used to reduce the impact of large flows on the system. Corresponding sensors and safety valves are equipped, and the positions of the expansion tank and the water supply tank are reasonably arranged. The water supply distance is shorter, and gravity water supply is used to reduce energy consumption. The overall water system makes full use of space, and the length of the pipeline is extremely shortened, which effectively reduces the manufacturing and maintenance costs. There are no cross pipes when observing the front of the unit, and the device layout is reasonable, taking into account both aesthetics and later maintainability, and reducing wind resistance.

[0053] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0054] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A chiller, characterized in that: include: A frame, the frame comprising an upper frame and a lower frame; the upper frame is provided with a top sealing plate and a side sealing plate; the lower frame is provided with a bottom sealing plate; A fan is installed on the top cover plate; A first heat exchanger is mounted on the bottom crossbeam of the upper frame; A water system component is installed in the lower frame and close to the bottom cover plate; The frame is provided with a maintenance side, the upper frame is correspondingly provided with an upper maintenance side, the lower frame is correspondingly provided with a lower maintenance side, and the water system component is arranged close to the lower maintenance side.

2. The water chiller according to claim 1, characterized in that: It also includes an electric control component and a channel air inlet arranged on the lower maintenance side, and the channel air inlet is arranged close to the bottom sealing plate.

3. The water chiller according to claim 2, characterized in that: The water system components include a water pump, a second heat exchanger, an expansion tank and a water supply tank; The water pump is installed on the bottom sealing plate, and is spaced apart from the water replenishing tank near the channel air inlet to form a first row of components; the second heat exchanger is installed on the bottom sealing plate, and is spaced apart from the expansion tank in sequence to form a second row of components; the second row of components is located on the side of the first row of components away from the channel air inlet, and the expansion tank is arranged on the side close to the water replenishing tank; the water inlet of the water pump is arranged close to the water replenishing tank, and the water outlet of the water pump is arranged close to the second heat exchanger, and the water outlet of the water pump is connected to the water inlet of the second heat exchanger; the expansion tank and the water replenishing tank are respectively connected to the water inlet of the water pump through pipelines.

4. The water chiller according to claim 2, characterized in that: A detachable mesh plate is provided at the air inlet of the channel.

5. The water chiller according to claim 3, characterized in that: The water outlet of the water pump is arranged at the top of the water pump, the water outlet of the water pump is connected to a vertical pipeline, the vertical pipeline is arranged in parallel with the second heat exchanger, and an exhaust valve is arranged at the top of the vertical pipeline.

6. The water chiller according to claim 5, characterized in that: It also includes a heater, and both ends of the heater are respectively connected to the vertical pipeline and the water inlet of the second heat exchanger.

7. The water chiller according to claim 5, characterized in that: It also includes a bypass pipe and a heat exchange water outlet pipeline, one end of the heat exchange water outlet pipeline is connected to the water outlet of the second heat exchanger, and both ends of the bypass pipe are respectively connected to the vertical pipeline and the heat exchange water outlet pipeline.

8. The water chiller according to claim 3, characterized in that: The water inlet of the water pump is connected with the water inlet pipeline through a filter.

9. The water chiller according to claim 3, characterized in that: The second row of components further includes a compressor, which is disposed close to the second heat exchanger and is communicated with the refrigerant channels of the first heat exchanger and the second heat exchanger, respectively.

10. A temperature control system, characterized in that: Comprising a chiller as described in any one of claims 1 to 9.

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