Water tank device and water chilling unit

By using the design of connecting the diversion holes between the mixing parts and the return water pipe in the water tank device of the chiller unit, the problem of insufficient temperature exchange in the existing water tank device is solved, and the temperature layer difference is reduced and the cooling efficiency is improved.

CN223020593UActive Publication Date: 2025-06-24SHENZHEN ENVICOOL TECH
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Patent Information

Application Number
CN202422138459.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-06-24
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

Due to the simple design of the water tank in the existing chiller, it is impossible to effectively exchange the temperature of cold water and storage water, resulting in significant temperature layer difference, reducing cooling efficiency and affecting the normal operation of the unit.

Method used

A water tank device is designed, and a mixing member is connected to the return water pipe. The mixing member is equipped with a plurality of diversion holes at the end of the return water pipe. The return water pipe is connected to the accommodating chamber of the water tank through these diversion holes, thereby promoting sufficient temperature exchange between the return liquid and the storage liquid.

Benefits of technology

Through the design of the mixing parts, the temperature layer difference in the water tank device is effectively reduced, the cooling efficiency of the chiller unit is improved, and the normal operation of the unit is ensured.

✦ Generated by Eureka AI based on patent content.

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Abstract

The water tank device comprises a tank body, a water return pipe and a flow mixing piece, the tank body is provided with a water return opening and a containing cavity, the water return pipe penetrates through the water return opening and is provided with a first end and a second end, the first end is located on the outer side of the tank body, and the second end is located on the inner side of the tank body; the flow mixing piece is connected to the second end and located in the containing cavity, a plurality of flow dividing holes are formed in the flow mixing piece, and the water return pipe communicates with the containing cavity through the flow dividing holes. The flow mixing piece is connected to the second end and located in the containing cavity, the flow mixing piece is provided with the multiple flow dividing holes, and the water return pipe communicates with the containing cavity through the multiple flow dividing holes, so that liquid flowing out of the second end can be divided into the containing cavity through the flow dividing holes of the flow mixing piece; therefore, the temperature of the backflow liquid can be fully exchanged with the temperature of the liquid stored in the containing cavity, the temperature layer difference in the water tank device is reduced, and normal operation of the water chilling unit is guaranteed.
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Description

Technical Field

[0001] This application relates to the technical field of chillers, and particularly to a water tank device and a chiller. Background Art

[0002] With the rapid development of the chiller industry, the application fields of chillers are constantly expanding. However, the corresponding water tank devices are mostly of open design and are relatively simple.

[0003] In the process of implementing this application, the inventors found that there are at least the following technical problems in the prior art:

[0004] In the prior art, there is a temperature difference between the cold water entering the water tank through the water inlet and the water stored in the water tank. The old-fashioned open water tank cannot allow the cold water entering the water tank to quickly exchange heat with the stored water, resulting in an obvious temperature layer difference in the water tank, thereby reducing the cooling effect of the chiller, lowering the efficiency of the cooling system, and affecting the normal operation of the chiller. Summary of the Utility Model

[0005] In order to overcome the above problems existing in the prior art, the main purpose of this application is to provide a water tank device and a chiller that can reduce the temperature layer difference to ensure the normal operation of the chiller.

[0006] To achieve the above purpose, this application specifically adopts the following technical solutions:

[0007] A water tank device, comprising:

[0008] A box body, the box body is provided with a water return port and a receiving cavity;

[0009] A water return pipe, the water return pipe passes through the water return port, and the water return pipe is provided with a first end and a second end. The first end is located outside the box body, and the second end is located inside the box body;

[0010] A mixing member, the mixing member is connected to the second end and is located in the receiving cavity, and the mixing member is provided with a plurality of flow dividing holes, and the water return pipe communicates with the receiving cavity through the plurality of flow dividing holes.

[0011] In some embodiments, the mixing member has a cylindrical structure, and the axis of the mixing member coincides with the axis of the water return pipe. The mixing member is provided with a side wall and a bottom wall, and the side wall and the bottom wall are respectively provided with a plurality of the flow dividing holes.

[0012] In some embodiments, the diameter of the mixing member is larger than the diameter of the water return pipe, and the mixing member is further provided with a top wall, and the top wall is provided with a plurality of the flow dividing holes.

[0013] In some embodiments, among the plurality of diversion holes, there are a plurality of circular holes and a plurality of strip-shaped holes. The plurality of strip-shaped holes are respectively distributed at intervals along the circumferential direction of the mixing member on the side wall, and the lengths of the plurality of strip-shaped holes respectively extend along the axial direction of the mixing member. The plurality of circular holes are respectively formed in the top wall and the bottom wall; or

[0014] Among the plurality of diversion holes, there are a plurality of circular holes and a plurality of annular holes. The plurality of annular holes are respectively distributed at intervals along the axial direction of the mixing member on the side wall, and the lengths of the plurality of annular holes respectively extend along the circumferential direction of the mixing member. The plurality of circular holes are respectively formed in the top wall and the bottom wall.

[0015] In some embodiments, the box body includes a top plate, a bottom plate and a plurality of side plates. The top plate, the bottom plate and the plurality of side plates are connected to each other to enclose the box body. The water return port is formed in the top plate. Along the height extension direction of the box body, the vertical distance between the second end and the bottom plate is less than half of the height of the box body.

[0016] In some embodiments, a liquid injection port is formed in the side part of the top plate. The water tank device further includes a liquid injection pipe. One end of the liquid injection pipe is connected to the liquid injection port, and the other end of the liquid injection pipe is used for connecting to a liquid supply device.

[0017] In some embodiments, the water tank device further includes a pressure relief cover. The pressure relief cover is arranged at the end of the liquid injection pipe far away from the liquid injection port, and the pressure relief cover is used for adjusting the pressure in the box body.

[0018] In some embodiments, a water replenishing port is formed in the lower part of the side plate. The water tank device further includes a quick connector and a ball valve. The quick connector is connected to the water replenishing port. The quick connector is used for connecting to a water replenishing pump. The ball valve is connected to the quick connector and is used for controlling the connection and disconnection between the quick connector and the water replenishing pump.

[0019] In some embodiments, the water tank device further includes a sight glass tube assembly. The sight glass tube assembly is connected to both ends of the box body and extends along the height extension direction of the box body.

[0020] A chiller includes a cabinet, a cooling system and the water tank device according to any one of the above. The cabinet is provided with a cavity. The water tank device and the cooling system are respectively arranged in the cavity, and the water tank device is connected to the cooling system.

[0021] Compared with the prior art, the water tank device provided by the present application has at least the following beneficial effects:

[0022] The mixing component of the present application is connected to the second end and is located in the accommodating cavity. The mixing component is provided with a plurality of flow splitting holes, and the return water pipe communicates with the accommodating cavity through the plurality of flow splitting holes, so that the liquid flowing out from the second end can be split into the accommodating cavity through each flow splitting hole of the mixing component, thereby enabling the refluxed liquid to fully exchange temperature with the liquid stored in the accommodating cavity, reducing the temperature layer difference in the water tank device, and ensuring the normal operation of the chiller. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the water tank device provided by the embodiment of the present application;

[0024] Figure 2 It is a cross-sectional view of the water tank device provided by the embodiment of the present application;

[0025] Figure 3 It is a schematic structural diagram of the side view of the water tank device provided by the embodiment of the present application;

[0026] Figure 4 It is a schematic structural diagram of the chiller provided by the embodiment of the present application.

[0027] Reference Signs:

[0028] 1, box body; 100, liquid level gauge interface; 101, water return port; 102, water outlet; 103, accommodating cavity; 104, top plate; 105, bottom plate; 106, side plate; 107, liquid injection port; 108, water replenishing port; 109, interface;

[0029] 2, return water pipe; 21, first end; 22, second end;

[0030] 3, water outlet pipe;

[0031] 4, mixing component; 41, flow splitting hole; 42, side wall; 43, bottom wall; 44, top wall;

[0032] 5, reinforcing rib;

[0033] 6, installation anchor;

[0034] 7, liquid injection pipe;

[0035] 8, pressure relief cover;

[0036] 9, quick connector;

[0037] 10, ball valve;

[0038] 11, union nut;

[0039] 12, sight glass tube assembly; 120, sight glass tube; 121, connecting pipe; 122, connecting hose; 123, hose clamp;

[0040] 200, water tank device;

[0041] 300, Cabinet; 301, Cavity. Detailed implementation manners

[0042] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] In the description of the present application, unless otherwise clearly specified and limited, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; unless otherwise specified or stated, the term "plural" means two or more, and the term "multiple types" means two or more types; the terms "connection", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] In the description of this specification, it should be understood that the orientation terms such as "upper" and "lower" described in the embodiments of the present application are described from the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element.

[0045] Refer to Figure 1 and Figure 2 as shown, Figure 1 which is a schematic structural diagram of a water tank device provided by an embodiment of the present application, Figure 2 and which is a cross-sectional view of a water tank device provided by an embodiment of the present application. This embodiment discloses a water tank device 200, which includes a box body 1, a return water pipe 2, a water outlet pipe 3, a mixing member 4, a reinforcing rib 5 and a plurality of installation feet 6. The box body 1 is provided with a return water port 101, a water outlet 102 and a receiving cavity 103. The return water port 101 and the water outlet 102 are respectively communicated with the receiving cavity 103, and the receiving cavity 103 is used for storing coolant.

[0046] The return water pipe 2 passes through the return water port 101, and the return water pipe 2 is provided with a first end 21 and a second end 22. The first end 21 is located outside the box body 1, and the second end 22 is located inside the box body 1.

[0047] The water outlet pipe 3 passes through the water outlet 102, and the water outlet pipe 3 is used for connecting with a cooling system.

[0048] The mixing component 4 is connected to the second end 22 and is located within the accommodation cavity 103. The mixing component 4 is provided with a plurality of flow splitting holes 41, and the return water pipe 2 communicates with the accommodation cavity 103 through the plurality of flow splitting holes 41.

[0049] The reinforcing ribs 5 are arranged on the outer side of the box body 1 and are distributed along the circumferential side of the box body 1, for strengthening the compressive capacity of the water tank device 200, so as to reduce the situation of deformation inside the water tank device 200 caused by water pressure during the water storage process, thereby improving the overall stability of the water tank device 200.

[0050] A plurality of installation feet 6 are respectively connected to both sides of the box body 1 to facilitate the installation of the water tank device 200.

[0051] In this embodiment, the mixing component 4 is connected to the second end 22 and is located within the accommodation cavity 103. The mixing component 4 is provided with a plurality of flow splitting holes 41, and the return water pipe 2 communicates with the accommodation cavity 103 through the plurality of flow splitting holes 41, such that the liquid flowing out from the second end 22 can be split into the accommodation cavity 103 through the respective flow splitting holes 41 of the mixing component 4, so that the refluxed liquid can fully exchange temperature with the liquid stored in the accommodation cavity 103, reducing the temperature layer difference inside the water tank device 200 and ensuring the normal operation of the chiller.

[0052] Refer to Figure 2 As shown, the mixing component 4 has a cylindrical structure, and the axial direction of the mixing component 4 coincides with the axial direction of the return water pipe 2, so that the impact force of the liquid flowing out from the return water pipe 2 on the mixing component 4 is consistent in all directions, reducing the situation of deformation of the mixing component 4 caused by uneven force, thereby improving the service life of the mixing component 4. The diameter of the mixing component 4 is larger than the diameter of the return water pipe 2. The mixing component 4 is provided with a side wall 42, a bottom wall 43 and a top wall 44. A plurality of flow splitting holes 41 are respectively formed in the side wall 42, the bottom wall 43 and the top wall 44. Each flow splitting hole 41 is respectively set as a circular hole, and the circular hole adopts a streamline design, such that the water flow can remain stable when passing through the flow splitting hole 41, thereby improving the efficiency of the refluxed liquid exchanging temperature with the liquid stored in the accommodation cavity 103.

[0053] In this embodiment, the diameter of the mixing component 4 is larger than the diameter of the return water pipe 2. The mixing component 4 is sleeved on the second end 22, so that the mixing component 4 has a top wall 44, thereby enabling more flow splitting holes 41 to be formed, further reducing the temperature layer difference inside the water tank device 200 and ensuring the normal operation of the chiller. It can be understood that in other embodiments, the diameter of the mixing component 4 can also be equal to or smaller than the diameter of the return water pipe 2. For example, the mixing component 4 is directly connected to the end of the second end 22, or the outer wall of the mixing component 4 is in contact with the inner wall of the return water pipe 2.

[0054] In this embodiment, the mixing member 4 and the return water pipe 2 are connected by welding to ensure the stability of the connection between the mixing member 4 and the return water pipe 2, reduce the situation that the mixing member 4 detaches from the return water pipe 2 due to water flow impact, and no auxiliary parts are required, reducing the cost. It can be understood that in other embodiments, the mixing member 4 and the return water pipe 2 can also be detachably connected, such as bolt connection, snap connection, etc.

[0055] In some embodiments, among the multiple diversion holes 41, there are multiple circular holes and multiple strip-shaped holes. The multiple strip-shaped holes are respectively distributed at intervals along the circumferential direction of the mixing member 4 on the side wall 42 to provide a larger drainage area, thereby improving the efficiency of the exchanged temperature between the reflux liquid and the liquid stored in the accommodation cavity 103. And the lengths of the multiple strip-shaped holes respectively extend along the axial direction of the mixing member 4, and the multiple circular holes are respectively formed in the top wall 44 and the bottom wall 43.

[0056] In some embodiments, among the multiple diversion holes 41, there are multiple circular holes and multiple annular holes. The multiple annular holes are respectively distributed at intervals along the axial direction of the mixing member 4 on the side wall 42 to provide a larger drainage area, thereby improving the efficiency of the exchanged temperature between the reflux liquid and the liquid stored in the accommodation cavity 103. And the lengths of the multiple annular holes respectively extend along the circumferential direction of the mixing member 4, and the multiple circular holes are respectively formed in the top wall 44 and the bottom wall 43.

[0057] The large capacity of the existing water tank leads to a large space, and there is a large drop between the water inlet and the liquid level. When the return water enters the water tank from the water inlet, there will be a large splashing noise, which is not applicable in places such as hospitals where quietness is required.

[0058] Refer to Figure 1 and Figure 2 As shown, the box body 1 includes a top plate 104, a bottom plate 105 and a plurality of side plates 106. The top plate 104, the bottom plate 105 and the plurality of side plates 106 are respectively connected to each other to enclose the box body 1, and the top plate 104 and the bottom plate 105 are arranged opposite to each other. The water return port 101 is formed in the top plate 104. Along the height extension direction of the box body 1, the vertical distance between the second end 22 and the bottom plate 105 is less than half of the height of the box body 1, that is, W1 < 1 / 2W2, where W1 is the vertical distance between the second end 22 and the bottom plate 105, and W2 is the height of the box body.

[0059] In this embodiment, the vertical distance between the second end 22 and the bottom plate 105 is less than half of the height of the box body 1 to reduce the drop between the water return port 101 and the liquid level in the water tank device 200, thereby reducing the impact force formed by the liquid flowing out from the second end 22, and further reducing the falling water noise, so that the water tank device 200 can be applicable to a comfortable and quiet environment, improving the applicability of the water tank device 200.

[0060] Existing large open water tanks are directly connected to the atmosphere for convenient exhaust and stable pressure. The connection between the water tank and the atmosphere makes it easier for dust and other impurities in the atmosphere to enter the water tank, resulting in pollution of the system water body, frequent replacement of the water body, increased costs, and reduced work efficiency.

[0061] Referring to Figure 1 As shown, a liquid injection port 107 is provided on the side of the top plate 104. The side plate 106 is also provided with a water replenishing port 108 and an interface 109. The water replenishing port 108 is located at the lower part of the side plate 106. The water tank device 200 further includes a liquid injection pipe 7, a pressure relief cover 8, a quick connector 9, a ball valve 10, a union nut 11 and a safety valve. One end of the liquid injection pipe 7 is connected to the liquid injection port 107, and the other end of the liquid injection pipe 7 is used to connect to a liquid supply device.

[0062] The pressure relief cover 8 is provided at the end of the liquid injection pipe 7 far from the liquid injection port 107. When it is necessary to inject water into the liquid injection port 107, just open the pressure relief cover 8 and inject water into the accommodation cavity 103.

[0063] The quick connector 9 is connected to the water replenishing port 108. The quick connector 9 is used to connect to a water replenishing pump to replenish water to the water tank device 200 through the water replenishing pump. Moreover, the water replenishing port 108 can also be used as a drainage port of the water tank device 200 to drain the excess water when the liquid level in the water tank device 200 is too high, ensuring the normal operation of the water tank device 200.

[0064] The ball valve 10 is connected to the quick connector 9 and is used to control the connection and disconnection between the quick connector 9 and the water replenishing pump.

[0065] The union nut 11 is provided at the connection between the quick connector 9 and the water replenishing port 108 to facilitate the installation and disassembly of the quick connector 9 and facilitate the replacement of the quick connector 9 when it is damaged, ensuring the normal operation of the water tank device 200.

[0066] The safety valve is provided at the interface 109. The interface 109 is used to dock with the safety valve when the safety valve drains water. The safety valve is used to control the water flow pressure to reduce the situation that the pipeline or the box body 1 bursts due to excessive pressure, ensuring the normal operation of the water tank device.

[0067] In this embodiment, by providing two liquid injection methods, namely, a direct liquid injection port 107 and a liquid replenishing port of the water replenishing pump, the water tank device 200 can be applied to more environments, improving the applicability of the water tank device 200.

[0068] In this embodiment, the liquid injection port 107 is located on the side of the top plate 104, so that when the water tank device 200 is placed in the cabinet 300, liquid injection can be conveniently carried out, reducing the situation of insufficient operating space caused by the liquid injection port 107 being directly above the top plate 104, and improving the applicability of the water tank device 200.

[0069] The pressure relief cover 8 of this embodiment is used to adjust the pressure inside the box body 1. When the gas in the accommodation cavity 103 accumulates to a certain amount, it will be discharged through the pressure relief cover 8, thereby ensuring the stable operation of the cooling system. Moreover, the pressure relief cover 8 can reduce the situation of dust and other impurities entering the water tank device 200 through the air holes, improving the cleanliness of the water quality in the water tank device 200, so that it is not necessary to frequently replace the water body, reducing the cost and improving the work efficiency.

[0070] Referring to Figure 1 and Figure 3 as shown, Figure 3 It is a schematic side view structure diagram of the water tank device provided by the embodiment of the present application. Two connection ports are also provided on the side of the box body 1, and the two connection ports are respectively arranged at both ends of the box body 1 along the height extension direction of the box body 1. The water tank device 200 further includes a sight glass tube assembly 12. The sight glass tube assembly 12 includes a sight glass tube 120, a connecting tube 121, a connecting hose 122 and a hose clamp 123. There are two connecting tubes 121, and each connecting tube 121 is respectively connected to each connection port, and each connecting tube 121 is respectively communicated with the accommodation cavity 103 through each connection port. Both ends of the sight glass tube 120 are respectively communicated with the connecting tube 121 through the connecting hose 122, and the sight glass tube 120 extends along the height extension direction of the box body 1. The sight glass tube 120 is used to observe the liquid level situation inside the water tank device 200, thereby reducing the situation of water overflow or dryness of the water tank device 200, ensuring that the water tank device 200 operates at an appropriate liquid level, and thus improving the stability and reliability of the water tank device 200. The hose clamps 123 are respectively arranged at the connection between the sight glass tube 120 and the connecting hose 122 and the connection between the connecting hose 122 and the connecting tube 121, and are used to seal the connection between the sight glass tube 120 and the connecting hose 122 and the connection between the connecting hose 122 and the connecting tube 121, thereby reducing the situation of liquid leakage inside the box body 1 and ensuring the sealing performance of the water tank device 200.

[0071] In this embodiment, the box body 1 is further provided with a liquid level gauge interface 100, and the water tank device 200 further includes a liquid level gauge. The liquid level gauge is connected to the liquid level gauge interface 100, and the liquid level gauge is used to alarm when the liquid level in the box body 1 is lower than the preset value, so as to ensure that the water tank device 200 operates at an appropriate liquid level.

[0072] Referring to Figure 4 as shown, Figure 4 It is a schematic structure diagram of the chiller provided by the embodiment of the present application. On the basis of this embodiment, a chiller is further disclosed. The chiller includes a cabinet 300, a cooling system and the water tank device 200 of any one of the above embodiments. The cabinet 300 is provided with a cavity 301. The water tank device 200 and the cooling system are respectively arranged in the cavity 301, and the water tank device 200 is connected to the cooling system.

[0073] As described above, it is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A water tank device, characterized in that: include: A box body, wherein the box body is provided with a water return port and a receiving cavity; A water return pipe, the water return pipe is passed through the water return port, and the water return pipe is provided with a first end and a second end, the first end is located outside the box, and the second end is located inside the box; A flow mixing piece is connected to the second end and is located in the accommodating cavity. The flow mixing piece is provided with a plurality of flow diversion holes, and the return pipe is communicated with the accommodating cavity via the plurality of flow diversion holes.

2. The water tank device according to claim 1, characterized in that: The flow mixing piece is in a cylindrical structure, and the axial direction of the flow mixing piece coincides with the axial direction of the water return pipe. The flow mixing piece is provided with a side wall and a bottom wall, and the side wall and the bottom wall are respectively provided with a plurality of the diversion holes.

3. The water tank device according to claim 2, characterized in that: The diameter of the flow mixing piece is greater than the diameter of the water return pipe, and the flow mixing piece is further provided with a top wall, and the top wall is provided with a plurality of the flow diversion holes.

4. The water tank device according to claim 3, characterized in that: The plurality of flow-dividing holes include a plurality of circular holes and a plurality of strip holes, the plurality of strip holes are respectively distributed on the side wall along the circumferential direction of the flow-mixing element, and the lengths of the plurality of strip holes respectively extend along the axial direction of the flow-mixing element, and the plurality of circular holes are respectively opened on the top wall and the bottom wall; or The plurality of flow diversion holes include a plurality of circular holes and a plurality of annular holes. The plurality of annular holes are respectively distributed on the side wall at intervals along the axial direction of the flow mixing piece, and the lengths of the plurality of annular holes respectively extend along the circumferential direction of the flow mixing piece. The plurality of circular holes are respectively opened on the top wall and the bottom wall.

5. The water tank device according to claim 1, characterized in that: The box body includes a top plate, a bottom plate and multiple side plates, which are interconnected to enclose the box body. The return water port is opened on the top plate, and along the height extension direction of the box body, the vertical distance between the second end and the bottom plate is less than half of the height of the box body.

6. The water tank device according to claim 5, characterized in that: A liquid injection port is provided on the side of the top plate, and the water tank device further comprises a liquid injection pipe, one end of which is connected to the liquid injection port, and the other end of which is used to be connected to a liquid supply device.

7. The water tank device according to claim 6, characterized in that: The water tank device further comprises a pressure relief cover, which is arranged at an end of the liquid injection pipe away from the liquid injection port, and is used to adjust the pressure in the tank.

8. The water tank device according to claim 5, characterized in that: A water supply port is provided at the lower portion of the side panel, and the water tank device further comprises a quick connector and a ball valve, wherein the quick connector is connected to the water supply port, the quick connector is used to be connected to a water supply pump, and the ball valve is connected to the quick connector to control the connection and disconnection between the quick connector and the water supply pump.

9. The water tank device according to any one of claims 1 to 8, characterized in that: The water tank device also includes a sight tube assembly, which is connected to both ends of the tank body and extends along the height extension direction of the tank body.

10. A chiller, characterized in that: It comprises a cabinet, a cooling system and a water tank device as claimed in any one of claims 1 to 9, wherein the cabinet is provided with a cavity, the water tank device and the cooling system are respectively arranged in the cavity, and the water tank device is connected to the cooling system.