Cooling device

Abstract

The utility model provides a cooling device. The cooling device comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger comprises a first shell and a heat exchange pipeline; the first shell is provided with a first heat exchange cavity, and the first heat exchange cavity is used for storing a heat exchange medium; the heat exchange pipeline is located in the first heat exchange cavity. The second heat exchanger comprises a second shell; the second shell is provided with a second heat exchange cavity, and the second heat exchange cavity is used for storing a heat exchange medium; and the drainage assembly is used for conveying the heat exchange medium in the first heat exchange cavity to the second heat exchange cavity and conveying the heat exchange medium in the second heat exchange cavity to the first heat exchange cavity. The heat exchange medium in the first heat exchange cavity of the first heat exchanger is conveyed to the second heat exchange cavity through the drainage assembly and is cooled through the second heat exchanger; and then the cooled heat exchange medium in the second heat exchange cavity is conveyed into the first heat exchange cavity, so that the temperature of the heat exchange medium in the first heat exchange cavity is reduced, and the cooling effect on the target fluid in the heat exchange pipeline is improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchange equipment, and in particular to a cooling device. Background Art

[0002] In the prior art, heat exchange equipment usually uses refrigerant to absorb heat from the refrigeration zone to achieve a relatively low temperature in the refrigeration zone. The heat of the refrigerant is further accelerated through cooling fans, etc., so that the cooled refrigerant can absorb heat from the refrigeration zone again.

[0003] However, in some cases, after the refrigerant absorbs heat in the refrigeration zone, devices such as cooling fans that cool the refrigerant are unable to quickly cool the refrigerant, which reduces the cooling effect of the heat exchange equipment on the refrigeration zone. Utility Model Content

[0004] Multiple embodiments of the present application provide a cooling device with good cooling effect.

[0005] The embodiments of this specification provide a cooling device, the cooling device comprising:

[0006] A first heat exchanger, comprising a first shell and a heat exchange pipeline; the first shell has a first heat exchange cavity, the first heat exchange cavity is used to store heat exchange medium; the heat exchange pipeline is located in the first heat exchange cavity;

[0007] a second heat exchanger, the second heat exchanger comprising a second shell; the second shell having a second heat exchange chamber, the second heat exchange chamber being used to store a heat exchange medium; and

[0008] The drainage component is used to transport the heat exchange medium in the first heat exchange cavity to the second heat exchange cavity, and to transport the heat exchange medium in the second heat exchange cavity to the first heat exchange cavity.

[0009] Optionally, the first heat exchanger has a first inlet and a first outlet communicating with the first heat exchange cavity; the second heat exchanger has a second inlet and a second outlet communicating with the second heat exchange cavity;

[0010] The drainage component includes:

[0011] a first connecting pipeline, two ends of which are respectively connected to the first outlet and the second inlet;

[0012] a second connecting pipeline, both ends of which are connected to the second outlet and the first inlet respectively; and

[0013] A pump is used to provide conveying power to convey the heat exchange medium in the first heat exchange chamber to the second heat exchange chamber through the first connecting pipeline, and to convey the heat exchange medium in the second heat exchange chamber to the first heat exchange chamber through the second connecting pipeline.

[0014] Optionally, when the cooling device is in use, along the direction of gravity, the first inlet is located below the first outlet, and the second inlet is located below the second outlet.

[0015] Optionally, the second heat exchanger has a heat exchange medium outlet and a medium supply port; an intermediate pipeline for connecting the heat exchange medium outlet and the medium supply port is provided in the second heat exchanger; wherein the medium supply port is used to connect to the medium supply pipeline that provides the heat exchange medium.

[0016] Optionally, the second heat exchanger has a medium supply port communicating with the second heat exchange cavity, and the medium supply port is communicated with the heat exchange medium outlet through a medium supply pipeline.

[0017] Optionally, the inner diameter of the intermediate pipeline falls within the range of 4mm to 8mm, the outer diameter of the intermediate pipeline falls within the range of 6mm to 10mm, the wall thickness of the intermediate pipeline falls within the range of 0.8mm to 1.2mm, and the total length of the intermediate pipeline falls within the range of 0.2m to 2m.

[0018] Optionally, the first heat exchanger is provided with an overflow port, which is used as an outlet for overflow of the heat exchange medium in the first heat exchanger; when the cooling device is in use, the overflow port is located at the upper end of the first heat exchanger along the direction of gravity.

[0019] Optionally, the cooling device also includes a waste discharge pipeline; the second inlet is connected to a first multi-way valve, the first multi-way valve includes at least a first port, a second port and a third port, the first port is connected to the second inlet, the second port is connected to the pump, and the third port is connected to the waste discharge pipeline, the waste discharge pipeline is used to empty the heat exchange medium in the first heat exchange chamber and the heat exchange medium in the second heat exchange chamber; the first multi-way valve has a first state and a second state, in the first state, the first port is connected to the second port and the third port is closed, in the second state, the second port is connected to the third port and the first port is closed.

[0020] Optionally, the second inlet of the second heat exchanger is connected to a three-way connector, which has a first connection end, a second connection end and a third connection end; the first connection end is connected to the second inlet; the second connection end is connected to a waste discharge auxiliary pipeline, and the third connection end is connected to the first port of the first multi-way valve; when the first multi-way valve is in the second state, the second inlet of the second heat exchanger is connected to the first connecting pipeline and the waste discharge pipeline through the waste discharge auxiliary pipeline.

[0021] Optionally, the waste discharge auxiliary pipeline is connected to the first connecting pipeline through a second multi-way valve, and the second multi-way valve includes a fourth port, a fifth port and a sixth port; the fourth port is connected to the first outlet of the first heat exchange chamber, the fifth port is connected to the pump, and the sixth port is connected to the waste discharge auxiliary pipeline; the second multi-way valve has a first state and a second state, when the second multi-way valve is in the first state, the fourth port and the fifth port are connected, and the sixth port is closed; when the second multi-way valve is in the second state, the fifth port and the sixth port are connected, and the fourth port is closed.

[0022] Optionally, at least one heat insulation plate is provided in the first heat exchange cavity to divide the first heat exchange cavity into a plurality of heat exchange intervals; when the cooling device is in use, the plurality of heat exchange intervals are arranged along the direction of gravity.

[0023] Optionally, the heat exchange pipeline is spirally shaped; when the cooling device is in use, the heat exchange pipeline extends spirally along the direction of gravity.

[0024] Optionally, the inner diameter of the heat exchange pipeline falls within the range of 2mm to 4mm, the outer diameter of the heat exchange pipeline falls within the range of 3mm to 5mm, the wall thickness of the heat exchange pipeline falls within the range of 0.3mm to 0.8mm, and the total length of the heat exchange pipeline falls within the range of 4.5m to 5m.

[0025] Optionally, a heat-conducting structure is provided between the first shell and the second shell, and the heat-conducting structure is in thermal contact with the first shell and the second shell respectively.

[0026] In the multiple embodiments provided in this specification, the heat exchange medium in the first heat exchange chamber of the first heat exchanger is transported to the second heat exchange chamber through a drainage component, and the cooled heat exchange medium in the second heat exchange chamber is transported to the first heat exchange chamber. The heat exchange medium in the first heat exchange chamber is exchanged with the heat exchange medium in the second heat exchange chamber, thereby lowering the temperature of the heat exchange medium in the first heat exchange chamber, so that the heat exchange medium in the first heat exchange chamber can be maintained at a lower temperature for a longer period of time, which can better cool the heat exchange pipeline and realize that the cooling device can have a better cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a cooling device provided in accordance with one embodiment of the present disclosure.

[0028] Figure 2 for Figure 1 Schematic diagram of the structure of the cooling device from another perspective.

[0029] Figure 3 for Figure 1 Cross-sectional view of the first heat exchanger.

[0030] Figure 4 for Figure 1 Cross-sectional view of the second heat exchanger.

[0031] Figure 5 A schematic structural diagram of a cooling device provided in another embodiment of this specification.

[0032] Figure 6 A schematic structural diagram of a cooling device provided in another embodiment of this specification. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0034] In the present application description, the drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features.

[0035] Unless otherwise indicated, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of this specification. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the scope of this specification. The term "and / or" used in this specification includes any and all combinations of one or more related listed items. The singular forms "a", "above", and "the" used in the embodiments of this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0036] In the description of this application specification, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the description of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of simplified description of the present application, and do not indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as a limitation to the present application.

[0038] Throughout this specification, unless otherwise expressly defined, the terms "installed," "connected," "connect," "fixed," and "disposed" should be interpreted broadly. For example, "connection" can refer to fixed or removable connections, or integration; it can refer to mechanical or electrical connections; it can refer to direct connections or indirect connections through an intermediary; it can also refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this specification based on the specific circumstances.

[0039] In the description of this application, unless otherwise explicitly defined, a first feature being “on,” “above,” “above,” “above,” “below,” “below,” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Moreover, a first feature being “on,” “above,” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. A first feature being “below,” “below,” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0040] See also Figures 1 to 4 The cooling device 100 provided in one embodiment of the present specification includes a first heat exchanger 110, a second heat exchanger 120, and a drainage assembly. The first heat exchanger 110 includes a first shell 111 and a heat exchange pipeline 112; the first shell 111 has a first heat exchange chamber 1111; the first heat exchange chamber 1111 is used to store heat exchange medium; and the heat exchange pipeline 112 is located in the first heat exchange chamber 1111. The second heat exchanger 120 includes a second shell 121; the second shell 121 has a second heat exchange chamber 1211; the second heat exchange chamber 1211 is used to store heat exchange medium. The drainage assembly is used to transport the heat exchange medium in the first heat exchange chamber 1111 to the second heat exchange chamber 1211, and to transport the heat exchange medium in the second heat exchange chamber 1211 to the first heat exchange chamber 1111.

[0041] It will be understood that the first heat exchanger 110 is used to cool the target fluid. The second heat exchanger 120 is used to cool the heat exchange medium in the first heat exchanger 110. Specifically, in the first heat exchanger 110, the heat exchange pipe 112 is used to allow the target fluid to flow in, and the first heat exchange chamber 1111 is used to accommodate the heat exchange medium. The heat exchange medium in the first heat exchange chamber 1111 is transported to the second heat exchange chamber 1211 for cooling. The second heat exchanger 120 is used to cool the heat exchange medium in the first heat exchange chamber 1111.

[0042] The above-mentioned cooling device, through the drainage component, transports the heat exchange medium in the first heat exchange chamber 1111 of the first heat exchanger 110 to the second heat exchange chamber 1211, so as to cool it through the second heat exchanger 120. Synchronously, the cooled heat exchange medium in the second heat exchange chamber 1211 is transported to the first heat exchange chamber 1111, so that the first heat exchange chamber 1111 has a heat exchange medium with a lower temperature, thereby improving the cooling effect on the target fluid in the heat exchange pipeline 112.

[0043] Generally, when the first heat exchanger 110 cools the target fluid, the target fluid is in a flowing state in the heat exchange pipe 112. Of course, after the target fluid flows into the heat exchange pipe 112, it may also have a certain flow stagnation time to improve the cooling effect.

[0044] In addition, by cooling the heat exchange medium in the first heat exchange chamber 1111 through the second heat exchanger 120, the service life of the heat exchange medium in the first heat exchange chamber 1111 and the second heat exchange chamber 1211 can be extended, and the heat exchange medium does not need to be replaced in a short time, avoiding waste of resources.

[0045] Optionally, in some feasible embodiments, the first housing and the second housing are integrally formed; the first housing and the second housing share a partition wall, and the first heat exchange cavity and the second heat exchange cavity are separated by the partition wall. In other words, the first housing and the second housing constitute a cooling housing of the cooling device, and the cooling housing has a heat exchange cavity. The partition wall is provided within the heat exchange cavity to separate the heat exchange cavity into the first heat exchange cavity and the second heat exchange cavity.

[0046] In some embodiments, the first heat exchanger 110 has a first inlet 1112 and a first outlet 1113 communicating with the first heat exchange chamber 1111. The second heat exchanger 120 has a second inlet 1212 and a second outlet 1213 communicating with the second heat exchange chamber 1211. The drainage assembly includes a first connecting pipe 210, a second connecting pipe 220, and a pump 230. The first connecting pipe 210 is connected to the first outlet 1113 and the second inlet 1212; the second connecting pipe 220 is connected to the second outlet 1213 and the first inlet 1112. The pump 230 is used to drive the heat exchange medium in the first heat exchange chamber 1111 to flow to the second heat exchange chamber 1211 through the first connecting pipe 210, and to drive the heat exchange medium in the second heat exchange chamber 1211 to flow to the first heat exchange chamber 1111 through the second connecting pipe 220. Thus, the first heat exchange chamber 1111, the first connecting pipeline 210, the second heat exchange chamber 1211 and the second connecting pipeline 220 form a circulation loop, which facilitates the first heat exchange chamber 1111 and the second heat exchange chamber 1211 to exchange the contained heat exchange medium with each other.

[0047] In some embodiments, when the cooling device 100 is in use, along the direction of gravity, the first inlet 1112 is located below the first outlet 1113. Specifically, in the first heat exchanger 110, the heat exchange medium in the first heat exchange chamber 1111 flows from bottom to top, which helps the gas to be discharged from above the heat exchange medium.

[0048] In addition, when the heat exchange medium in the first heat exchange chamber 1111 and the heat exchange medium in the second heat exchange chamber 1211 are exchanged through a circulation loop, the heat exchange medium with a higher temperature in the first heat exchange chamber 1111 will first flow to the second heat exchange chamber 1211, so that the temperature of the heat exchange medium contained in the first heat exchange chamber 1111 can be reduced more quickly.

[0049] Specifically in this embodiment, when the cooling device 100 is used, Figure 3 In the arrangement shown, the first inlet 1112 and the first outlet 1113 are located on the same side of the first shell 111; in this embodiment, along the direction of gravity, the first inlet 1112 is located at the bottom end of the side; the first outlet 1113 is located at the top end of the side.

[0050] The first inlet 1112 and the first outlet 1113 are located on the side of the first shell 111 , so as to avoid affecting other structures in the target fluid equipment when the cooling device 100 is set in the target fluid equipment and facilitate the connection of the first connecting pipe 210 and the second connecting pipe 220 .

[0051] The first inlet 1112 is located at the bottom end of the side of the first shell 111; the first outlet 1113 is located at the top end of the side of the first shell 111, so that the heat exchange medium in the first heat exchange chamber 1111 gradually moves upward during the output process, and the heat exchange medium cooled by the second heat exchanger 120 enters the first heat exchange chamber 1111 from the bottom side, so that the temperature of the heat exchange medium in the first heat exchange chamber 1111 is always roughly maintained at a lower temperature the closer to the bottom side of the first heat exchanger 110, thereby better ensuring the cooling effect of the first heat exchanger 110.

[0052] Furthermore, the first outlet 1113 is located at the top of the side of the first shell 111, so that only when the liquid level of the heat exchange medium in the first heat exchange chamber 1111 reaches the specified liquid level at the top, for example, when the first heat exchange chamber 1111 is filled, the heat exchange medium in the first heat exchange chamber 1111 can flow out from the first heat exchange chamber 1111 under the action of the pump 230, thereby ensuring the volume of the heat exchange medium in the first heat exchange chamber 1111.

[0053] Furthermore, in this embodiment, the first inlet 1112 and the first outlet 1113 are located on the side of the same side of the first shell 111. It is understandable that in other feasible embodiments, the first inlet and the first outlet are not limited to being located on the same side of the first shell, but can also be located on the side of different sides of the first shell. In addition, the first inlet and the first outlet are not limited to being located on the side of the first shell, but can also be located on other surfaces. For example, the first inlet 1112 is located on the bottom surface of the first shell 111, and the first outlet 1113 is located on the top surface of the first shell 111, see Figure 5 shown.

[0054] In some embodiments, the cooling device 100 is used as Figure 3 In the illustrated arrangement, along the direction of gravity, the second inlet 1212 is located at the bottom end of the side surface of the second shell 121; the second outlet 1213 is located at the top end of the side surface of the second shell 121. Therefore, only when the liquid level of the heat exchange medium in the second heat exchange chamber 1211 reaches a specified liquid level at the top end, for example, when the second heat exchange chamber 1211 is completely filled, can the heat exchange medium be discharged from the second heat exchange chamber 1211. This also stipulates that the second heat exchange chamber 1211 must contain sufficient heat exchange medium in order to exchange heat exchange medium with the first heat exchange chamber 1111.

[0055] In this embodiment, the second inlet 1212 and the second outlet 1213 are located on the same side of the second heat exchanger 120. It is understood that in other feasible embodiments, the second inlet and the second outlet are not limited to being located on the same side of the second shell, but can also be located on different sides of the first shell. In addition, the second inlet and the second outlet are not limited to being located on the side of the first shell, but can also be located on other surfaces. For example, the second inlet 1212 is located on the bottom surface of the second shell 121, and the second outlet 1213 is located on the top surface of the second shell 121, see Figure 5 shown.

[0056] In some embodiments, the second heat exchanger 120 has a heat exchange medium outlet 126 and a heat exchange medium inlet 125; an intermediate pipeline 122 for connecting the heat exchange medium outlet 126 and the heat exchange medium inlet 125 is provided in the second heat exchanger 120; wherein the heat exchange medium inlet 125 is used to connect to a medium supply pipeline for providing heat exchange medium.

[0057] The second heat exchanger 120 does not come into contact with the heat source, causing the heat in the heat exchange medium in the second heat exchange chamber 1211 to evaporate from the second heat exchanger 120, thereby gradually cooling the heat exchange medium in the second heat exchange chamber 1211. Furthermore, the intermediate pipeline 122 is located within the second heat exchange chamber 1211, providing a large contact area between the intermediate pipeline 122 and the heat exchange medium in the second heat exchange chamber 1211. When the heat exchange medium flows through the intermediate pipeline 122, it will exchange heat with the heat exchange medium in the second heat exchange chamber 1211. After the second heat exchange chamber 1211 exchanges heat exchange medium with the first heat exchange chamber 1111, the temperature of the heat exchange medium in the second heat exchange chamber 1211 increases, and the temperature is often higher than the heat exchange medium flowing through the intermediate pipeline 122. At this time, the heat exchange medium flowing through the intermediate pipeline 122 will take away part of the heat of the heat exchange medium in the second heat exchange chamber 1211, thereby reducing the temperature of the heat exchange medium in the second heat exchanger 120 to a certain extent.

[0058] In this embodiment, the second heat exchanger 120 further has a medium supply port 1214 communicating with the second heat exchange chamber 1211. Thus, the heat exchange medium can be delivered to the circulation loop formed by the first heat exchange chamber 1111, the first connecting pipe 210, the second heat exchange chamber 1211, and the second connecting pipe 220 through the medium supply port 1214.

[0059] Specifically, when the cooling device 100 is used, Figure 4 In the illustrated arrangement, the medium supply port 1214 is located at the bottom end of the side of the second shell 121. Cold water can be used as the heat exchange medium to enter the second heat exchange chamber 121 through the medium supply port 1214, so that the heat exchange medium in the second heat exchange chamber 121 near the bottom end of the second shell 121 has a relatively low temperature.

[0060] Likewise, in another feasible embodiment, the medium supply port is not limited to being located on the side surface of the second shell, but may also be located on other surfaces, such as the bottom surface.

[0061] In some embodiments, the medium supply port 1214 is in communication with the heat exchange medium outlet 126 via the medium supply pipeline 250 , so that the heat exchange medium in the intermediate pipeline 122 can flow into the second heat exchange cavity 1211 .

[0062] Optionally, the inner diameter of the intermediate pipe 122 is within the range of 4 mm to 8 mm, the outer diameter of the intermediate pipe 122 is within the range of 6 mm to 10 mm, the wall thickness of the intermediate pipe 122 is within the range of 0.8 mm to 1.2 mm, and the total length of the intermediate pipe 122 is within the range of 0.2 m to 2 m. This prevents excessive water pressure in the intermediate pipe 122 while maintaining heat exchange efficiency. Furthermore, a larger inner diameter of the intermediate pipe 122 can reduce the flow rate of the heat exchange medium in the intermediate pipe 122, thereby fully maximizing the cooling effect of the heat exchange medium in the intermediate pipe 122. Of course, it is understood that if the heat exchange medium in the intermediate pipe 122 is water and the water passing through the intermediate pipe 122 can be reused, a higher flow rate of the heat exchange medium in the intermediate pipe 122 can be selected, depending on the specific situation and without wasting resources, to achieve better heat exchange performance in the second heat exchanger 120. In some embodiments, the intermediate pipe 122 is repeatedly curved. This allows the intermediate pipe 122 to be longer, increasing the contact area between the intermediate pipe 122 and the heat exchange medium in the second heat exchange chamber 1211, thereby improving the heat exchange efficiency of the second heat exchanger 120. The aforementioned wall thickness makes the intermediate pipe 122 easier to bend and less likely to break, which could lead to heat exchange medium leakage. It also prevents deformation, which could lead to pipe diameter narrowing, thereby preventing the narrowing from affecting the flow of the heat exchange medium.

[0063] In some embodiments, the first heat exchanger 110 is provided with an overflow port 270, which serves as an outlet for the overflow of the heat exchange medium in the first heat exchanger 110. When the cooling device 100 is in use, the overflow port 270 is located at the upper end of the first heat exchanger 110 along the direction of gravity. Therefore, when injecting heat exchange medium into the first heat exchange chamber 1111, more heat exchange medium can be injected into the first heat exchange chamber 1111 to fully fill the first heat exchange chamber 1111 with the heat exchange medium, thereby fully utilizing the space in the first heat exchange chamber 1111.

[0064] In addition, it is understood that when the cooling device 100 is used, as shown in FIG. Figure 3In the illustrated arrangement, the overflow port 270 is located at the upper end of the first heat exchanger 110, along the direction of gravity, so that the first heat exchange chamber 1111 can accommodate a larger amount of heat exchange medium, thereby fully utilizing the internal space of the first heat exchange chamber 1111. The first inlet 1112 is located at the bottom end of the side of the first shell 111. The heat exchange medium filling the first heat exchange chamber 1111 is filled from the bottom to the top, and the airflow above the heat exchange medium can be discharged through the overflow port 270, thereby preventing the pressure in the first heat exchange chamber 1111 from increasing and affecting the filling speed and total amount of the heat exchange medium.

[0065] In addition, when filling the first heat exchange chamber 1111 with heat exchange medium, the total amount of input can also be greater than the total amount of heat exchange medium that the circulation loop can accommodate. The excess can be discharged through the overflow port 270, thereby ensuring that the first heat exchange chamber 1111 is fully filled with heat exchange medium.

[0066] In some embodiments, the cooling device 100 further includes a waste discharge line 240. The second inlet 1212 is connected to a first multi-way valve 232. The first multi-way valve 232 includes at least a first port 2321, a second port 2322, and a third port 2323. The first port 2321 is connected to the second inlet 1212, the second port 2322 is connected to the first connecting line 210, and the third port 2323 is connected to the waste discharge line 240. The waste discharge line 240 is used to discharge the heat exchange medium in the first heat exchange chamber 1111 and the heat exchange medium in the second heat exchange chamber 1211. The first multi-way valve 232 has a first state and a second state. In the first state, the first port 2321 is connected to the second port 2322 and the third port 2323 is closed. In the second state, the second port 2322 is connected to the third port 2323 and the first port 2321 is closed.

[0067] It will be appreciated that when the first multi-way valve 232 is in the first state, the first connecting line 210 is connected to the second inlet 1212 and disconnected from the exhaust line 240, allowing the heat exchange medium in the first connecting line 210 to be transported to the second heat exchange chamber 1211 through the second inlet 1212. The first state of the first multi-way valve 232 is used to transport the heat exchange medium in the first heat exchange chamber 1111 to the second heat exchange chamber 1211, i.e., the heat exchange medium in the first heat exchange chamber 1111 is transported to the second heat exchange chamber 1211 through the first connecting line 210. When the first multi-way valve 232 is in the second state, the exhaust line 240 is connected to the first connecting line 210 and disconnected from the second inlet 1212, allowing the heat exchange medium in the first connecting line 210 to be discharged through the exhaust line 240. The second state of the first multi-way valve 232 is used to discharge the heat exchange medium from the circulation loop. Specifically, in the circulation loop, the heat exchange medium flowing to the first connecting pipeline 210 is discharged through the waste pipeline 240 .

[0068] Optionally, the first multi-way valve 232 is a three-way valve. It is understood that the first multi-way valve is not limited to a three-way valve, and can also be a multi-way valve or include at least two two-way valves, etc., which can control the flow direction of the heat exchange medium flowing from the first connecting pipeline 210 to the first multi-way valve 232 according to the above requirements.

[0069] In some embodiments, the second inlet 1212 of the second heat exchanger 120 is connected to a three-way connector 260 having a first connection end 261, a second connection end 262, and a third connection end 263. The first connection end 261 is connected to the second inlet 1212. The second connection end 262 is connected to an auxiliary waste discharge line 280, and the third connection end 263 is connected to the first port 2321 of the first multi-way valve 232. When the first multi-way valve 232 is in the second state, the second inlet 1212 of the second heat exchanger 120 is connected to the first connecting line 210 and the waste discharge line 240 via the auxiliary waste discharge line 280. In other words, the heat exchange medium in the second heat exchange chamber 1211 can be discharged sequentially through the second inlet 1212, the auxiliary waste discharge line 280, the first connecting line 210, and the waste discharge line 240.

[0070] In some embodiments, the waste exhaust auxiliary pipeline 280 is connected to the first connecting pipeline 210 through a second multi-way valve 231, and the second multi-way valve 231 includes a fourth port 2311, a fifth port 2312 and a sixth port 2313; the fourth port 2311 of the second multi-way valve 231 is connected to the first outlet 1113 of the first heat exchange chamber 1111, the fifth port 2312 of the second multi-way valve 231 is connected to the first connecting pipeline 210, and the sixth port 2313 of the second multi-way valve 231 is connected to the waste exhaust auxiliary pipeline 280; the second multi-way valve 231 has a first state and a second state. When the second multi-way valve 231 is in the first state, the fourth port 2311 and the fifth port 2312 are connected, and the sixth port 2313 is closed; when the second multi-way valve 231 is in the second state, the fifth port 2312 and the sixth port 2313 are connected, and the fourth port 2311 is closed.

[0071] It will be understood that when the second multi-way valve 231 is in the first state, the heat exchange medium in the first heat exchange chamber 1111 flows into the first connecting pipeline 210 and then into the second heat exchange chamber 1211. The first state of the second multi-way valve 231 is the state of the second multi-way valve 231 when the heat exchange medium circulates in the circulation loop. When the second multi-way valve 231 is in the second state, the heat exchange medium in the second heat exchange chamber 1211 flows into the first connecting pipeline 210 through the waste auxiliary pipeline 280 and is then discharged through the waste pipeline 240. The second state of the second multi-way valve 231 is the state of the second multi-way valve 231 when the heat exchange medium in the second heat exchange chamber 1211 is discharged.

[0072] In this embodiment, the second multi-way valve 231 is located between the first outlet 1113 of the first heat exchange chamber 1111 and the pump 230. Under the action of the pump 230, the heat exchange medium in the second heat exchange chamber 1211 is discharged through the auxiliary exhaust pipe 280, the first connecting pipe 210, and the exhaust pipe 240. The heat exchange medium in the second heat exchange chamber 1211 decreases, and the pressure decreases, causing the heat exchange medium in the first heat exchange chamber 1111 to flow back along the second connecting pipe 220 toward the second heat exchange chamber 1211, and then through the auxiliary exhaust pipe 280, the first connecting pipe 210, and the exhaust pipe 240, thereby emptying the heat exchange medium in the circulation loop.

[0073] Understandably, see Figures 1 to 2 Since the first multi-way valve 232, the second multi-way valve 231 and the pump 230 are provided in the circulation loop, the first connecting pipeline 210 includes a pipeline between the first outlet 1113 and the second multi-way valve 231, a pipeline between the second multi-way valve 231 and the pump 230, a pipeline between the pump 230 and the first multi-way valve 232, and a pipeline between the first multi-way valve 232 and the second inlet 1212.

[0074] The first state of the first multi-way valve 232 and the first state of the second multi-way valve 231 are applicable to the process of transferring the heat exchange medium in the first heat exchange chamber 1111 to the second heat exchange chamber 1211. Specifically, the heat exchange medium in the first heat exchange chamber 1111 is transferred to the second heat exchange chamber 1211 via the first connecting pipeline 210. In this process, the first connecting pipeline 210 includes the pipeline between the first outlet 1113 and the second multi-way valve 231, the pipeline between the second multi-way valve 231 and the pump 230, the pipeline between the pump 230 and the first multi-way valve 232, and the pipeline between the first multi-way valve 232 and the second inlet 1212. The heat exchange medium in the first heat exchange chamber 1111 is transferred to the second heat exchange chamber 1211 in the order of these four pipelines.

[0075] The second state of the first multi-way valve 232 and the second state of the second multi-way valve 231 are applicable to the process of discharging the heat exchange medium in the circulation loop. Specifically, the second inlet 1212 of the second heat exchanger 120 is connected to the first connecting pipeline 210 and the waste discharge pipeline 240 via the waste discharge auxiliary pipeline 280. The heat exchange medium in the second heat exchange chamber 1211 can be discharged after passing through the second inlet 1212, the waste discharge auxiliary pipeline 280, the first connecting pipeline 210, and the waste discharge pipeline 240 in sequence. In this process, the first connecting pipeline 210 includes the pipeline between the second multi-way valve 231 and the pump 230, and the pipeline between the pump 230 and the first multi-way valve 232. The heat exchange medium in the first heat exchange chamber 1111 is then transported to the waste discharge pipeline 240 in the order of the above two pipelines before being discharged.

[0076] In some embodiments, at least one heat insulation plate 113 is provided in the first heat exchange chamber 1111 to divide the first heat exchange chamber 1111 into a plurality of heat exchange intervals 1115. When the cooling device 100 is in use, the plurality of heat exchange intervals 1115 are arranged along the direction of gravity. The closer to the bottom side, the lower the temperature of the heat exchange medium in the heat exchange interval 1115. Moreover, due to the provision of the heat insulation plate 113, the heat exchange between adjacent heat exchange intervals 1115 is reduced, thereby resulting in a certain temperature difference between adjacent heat exchange intervals 1115. As a result, the temperature of the heat exchange interval 1115 closer to the bottom side is lower, thereby further improving the cooling effect on the target fluid.

[0077] Optionally, the heat exchange pipe 112 is a stainless steel pipe; the intermediate pipe 122 is a stainless steel pipe; the first shell 111 is a stainless steel shell; and the second shell 121 is a stainless steel shell. Stainless steel has good heat transfer efficiency. The heat exchange pipe 112, the intermediate pipe 122, the first shell 111, and the second shell 121 are all made of stainless steel, thereby ensuring that the first heat exchanger 110 and the second heat exchanger 120 both have good heat exchange performance. Of course, it is understood that the material of the heat exchange pipe 112, the intermediate pipe 122, the first shell 111, and the second shell 121 is not limited to stainless steel, but can also be other heat-conducting materials, such as copper. It is also understood that the materials of the heat exchange pipe 112, the intermediate pipe 122, the first shell 111, and the second shell 121 can be the same or different.

[0078] Optionally, the first shell 111 and the second shell 121 are formed of a heat-conducting material, so that the heat in the first heat exchanger 110 and the second heat exchanger 120 can also be dissipated to the external environment through the first shell 111 and the second shell 121, thereby improving the heat dissipation rate of the first heat exchanger 110 and the second heat exchanger 120, which helps to reduce the temperature of the heat exchange medium.

[0079] Furthermore, the outer surfaces of the first shell 111 and the second shell 121 can also be provided with heat dissipation fins or fans and other structures to increase the efficiency of heat dissipation of the first heat exchanger 110 and the second heat exchanger 120 through the first shell 111 and the second shell 121 respectively, thereby better improving the heat dissipation rate of the first heat exchanger 110 and the second heat exchanger 120, which helps to reduce the temperature of the heat exchange medium.

[0080] In some embodiments, the heat exchange pipe 112 is spirally shaped. When the cooling device is in use, the heat exchange pipe 112 spirally extends in the direction of gravity. As a result, when the target fluid flows in the heat exchange pipe 112, it continuously flows downward in the direction of gravity, which is consistent with the direction of gravity of the target fluid, thereby allowing the target fluid to flow through the heat exchange pipe 112 more smoothly.

[0081] In this embodiment, the projection of the heat exchange pipe 112 on a plane perpendicular to the direction of gravity is roughly a rounded rectangle, which can maximize the space within the first heat exchange chamber 1111. This allows the heat exchange pipe 112 to be as long as possible, thereby increasing the flow time of the target fluid and improving the cooling effect. It is understood that in other feasible embodiments, when the shape of the first heat exchange chamber changes, the shape of the heat exchange pipe can also be adjusted accordingly. Furthermore, the shape of the heat exchange pipe is not limited to being roughly consistent with the shape of the first heat exchange chamber in a direction perpendicular to the axis of the heat exchange pipe.

[0082] In this embodiment, both the first heat exchange chamber 1111 and the second heat exchange chamber 1211 are rectangular parallelepiped-shaped. This reduces dead corners within the first heat exchange chamber 1111 and the second heat exchange chamber 1211, reducing the accumulation of dirt, such as scale. Furthermore, any dirt that accumulates within the first heat exchange chamber 1111 and the second heat exchange chamber 1211 can be easily cleaned.

[0083] It can be understood that, in other feasible embodiments, the shapes of the first heat exchange chamber and the second heat exchange chamber are not limited to rectangular parallelepiped, and can also be any regular or irregular shape.

[0084] Optionally, the inner diameter of the heat exchange pipe 112 is within the range of 2 mm to 4 mm, the outer diameter of the heat exchange pipe 112 is within the range of 3 mm to 5 mm, the wall thickness of the heat exchange pipe 112 is within the range of 0.3 mm to 0.8 mm, and the total length of the heat exchange pipe 112 is within the range of 4.5 m to 5 m. Thus, while the target fluid can smoothly pass through the heat exchange pipe 112, the contact area between the heat exchange pipe 112 and the heat exchange medium in the first heat exchange chamber 1111 is larger, resulting in higher heat exchange efficiency.

[0085] See also Figure 6 , a cooling device 200 provided in another embodiment of the present application is different from the cooling device 100 in that the first shell 111 is in thermal contact with the second shell 121. Therefore, when the temperatures of the first shell 111 and the second shell 121 are different, heat exchange occurs between the first shell 111 and the second shell 121. Generally, during use, the temperature of the heat exchange medium in the first heat exchange cavity 1111 is higher than the temperature of the heat exchange medium in the second heat exchange cavity 1211, so that the temperature of the first shell 111 is higher than the temperature of the second shell 121. By thermally contacting the first shell 111 and the second shell 121, the temperature of the first shell 111 can be reduced, and then the temperature of the heat exchange medium in the first heat exchange cavity 1111 of the first shell 111 can be reduced, thereby improving the heat exchange effect of the first heat exchanger 110.

[0086] Specifically, the first housing 111 has a first thermal contact surface 1114 in thermal contact with the second housing 121. The second housing 121 has a second thermal contact surface 1215 that matches the first thermal contact surface 1114. The first thermal contact surface 1114 and the second thermal contact surface 1215 are in contact, enabling heat exchange between the first housing 111 and the second housing 121.

[0087] In this embodiment, both the first thermal contact surface 1114 and the second thermal contact surface 1215 are planar. It is understood that in other feasible embodiments, the first thermal contact surface and the second thermal contact surface are not limited to being planar, but may also be regular or irregular shapes such as curved surfaces. For example, both the first thermal contact surface and the second thermal contact surface may be uneven to increase the thermal contact area between the first and second thermal contact surfaces, thereby increasing the heat exchange efficiency between the first and second shells.

[0088] Optionally, in some feasible embodiments, the first shell 111 and the second shell 121 are relatively fixed; the cooling device 100 further includes a heat-conducting structure in thermal contact with both the first shell 111 and the second shell 121. A heat-conducting structure is provided between the first shell 111 and the second shell 121, and the heat-conducting structure is in thermal contact with the first shell 111 and the second shell 121, respectively. In this way, the first shell 111 and the second shell 121 are not in direct contact, and heat is transferred through the heat-conducting structure, thereby reducing the temperature of the first shell 121 and improving the heat exchange effect of the first heat exchanger 110. It is understandable that the heat-conducting structure is formed of a heat-conducting material, such as solder paste, silicone grease, etc., so that heat can be transferred to both the first shell 111 and the second shell 121.

[0089] The cooling device provided in the embodiments of this specification can be used in beverage equipment such as coffee machines. When the beverage equipment is a coffee machine, the target fluid can be coffee.

[0090] It is understood that, in other feasible embodiments, the cooling device is not limited to being used in beverage equipment, but can also be used in other equipment that requires cooling the target fluid.

[0091] It can be understood that in the various embodiments in this specification, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this specification.

[0092] It can be understood that the various embodiments described in this specification can be implemented individually or in combination, and the embodiments of this specification are not limited to this.

[0093] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0094] The above are merely specific embodiments of this specification, but the scope of protection of this application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this specification should be included within the scope of protection of this specification. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A cooling device, characterized in that: The cooling device comprises: A first heat exchanger, comprising a first shell and a heat exchange pipeline; the first shell has a first heat exchange cavity, the first heat exchange cavity is used to store heat exchange medium; the heat exchange pipeline is located in the first heat exchange cavity; a second heat exchanger, the second heat exchanger comprising a second shell; the second shell having a second heat exchange chamber, the second heat exchange chamber being used to store a heat exchange medium; and The drainage component is used to transport the heat exchange medium in the first heat exchange cavity to the second heat exchange cavity, and to transport the heat exchange medium in the second heat exchange cavity to the first heat exchange cavity.

2. The cooling device according to claim 1, characterized in that The first heat exchanger has a first inlet and a first outlet communicating with the first heat exchange cavity; the second heat exchanger has a second inlet and a second outlet communicating with the second heat exchange cavity; The drainage component includes: a first connecting pipeline, two ends of which are respectively connected to the first outlet and the second inlet; a second connecting pipeline, both ends of which are connected to the second outlet and the first inlet respectively; and A pump is used to provide conveying power to convey the heat exchange medium in the first heat exchange chamber to the second heat exchange chamber through the first connecting pipeline, and to convey the heat exchange medium in the second heat exchange chamber to the first heat exchange chamber through the second connecting pipeline.

3. The cooling device according to claim 2, characterized in that When the cooling device is in use, along the direction of gravity, the first inlet is located below the first outlet, and the second inlet is located below the second outlet.

4. The cooling device according to claim 2, characterized in that The second heat exchanger has a heat exchange medium outlet and a heat exchange medium inlet; an intermediate pipeline for connecting the heat exchange medium outlet and the heat exchange medium inlet is provided in the second heat exchanger; wherein the heat exchange medium inlet is used to connect to a medium supply pipeline that provides the heat exchange medium.

5. The cooling device according to claim 4, characterized in that The second heat exchanger has a medium supply port communicating with the second heat exchange cavity, and the medium supply port is communicated with the heat exchange medium outlet through a medium supply pipeline.

6. The cooling device according to claim 4, characterized in that The inner diameter of the intermediate pipeline falls within the range of 4mm to 8mm, the outer diameter of the intermediate pipeline falls within the range of 6mm to 10mm, the wall thickness of the intermediate pipeline falls within the range of 0.8mm to 1.2mm, and the total length of the intermediate pipeline falls within the range of 0.2m to 2m.

7. The cooling device according to claim 2, characterized in that The first heat exchanger is provided with an overflow port, which is used as an outlet for overflow of the heat exchange medium in the first heat exchanger; when the cooling device is in use, the overflow port is located at the upper end of the first heat exchanger along the direction of gravity.

8. The cooling device according to claim 2, characterized in that The cooling device also includes a waste discharge pipeline; the second inlet is connected to a first multi-way valve, the first multi-way valve includes at least a first port, a second port and a third port, the first port is connected to the second inlet, the second port is connected to the pump, and the third port is connected to the waste discharge pipeline, the waste discharge pipeline is used to empty the heat exchange medium in the first heat exchange cavity and the heat exchange medium in the second heat exchange cavity; the first multi-way valve has a first state and a second state, in the first state, the first port is connected to the second port, and the third port is closed, in the second state, the second port is connected to the third port and the first port is closed.

9. The cooling device according to claim 8, characterized in that The second inlet of the second heat exchanger is connected to a three-way connector, which has a first connecting end, a second connecting end and a third connecting end; the first connecting end is connected to the second inlet; the second connecting end is connected to a waste discharge auxiliary pipeline, and the third connecting end is connected to the first port of the first multi-way valve; when the first multi-way valve is in the second state, the second inlet of the second heat exchanger is connected to the first connecting pipeline and the waste discharge pipeline through the waste discharge auxiliary pipeline.

10. The cooling device according to claim 9, characterized in that The waste discharge auxiliary pipeline is connected to the first connecting pipeline via a second multi-way valve, the second multi-way valve comprising a fourth port, a fifth port, and a sixth port; the fourth port is connected to the first outlet of the first heat exchange chamber, the fifth port is connected to the pump, and the sixth port is connected to the waste discharge auxiliary pipeline; The second multi-way valve has a first state and a second state. When the second multi-way valve is in the first state, the fourth port and the fifth port are connected, and the sixth port is closed. When the second multi-way valve is in the second state, the fifth port and the sixth port are connected, and the fourth port is closed.

11. The cooling device according to any one of claims 1 to 10, characterized in that: At least one heat insulation plate is provided in the first heat exchange cavity to divide the first heat exchange cavity into a plurality of heat exchange intervals; when the cooling device is in use, the plurality of heat exchange intervals are arranged along the direction of gravity.

12. The cooling device according to claim 11, characterized in that The heat exchange pipeline is spiral-shaped; when the cooling device is in use, the heat exchange pipeline extends spirally along the direction of gravity.

13. The cooling device according to claim 12, characterized in that The inner diameter of the heat exchange pipeline falls within the range of 2mm to 4mm, the outer diameter of the heat exchange pipeline falls within the range of 3mm to 5mm, the wall thickness of the heat exchange pipeline falls within the range of 0.3mm to 0.8mm, and the total length of the heat exchange pipeline falls within the range of 4.5m to 5m.

14. The cooling device according to any one of claims 1 to 10, characterized in that: A heat-conducting structure is provided between the first shell and the second shell, and the heat-conducting structure is in thermal contact with the first shell and the second shell respectively.

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