Cooling device

Abstract

The invention 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 relates to a cooling device. BACKGROUND

[0002] In the prior art, heat exchange equipment usually uses refrigerant to absorb heat in a refrigeration area, so that the refrigeration area has a relatively low temperature, and further uses a heat dissipation fan or the like to accelerate volatilization of heat in the refrigerant, so that the cooled refrigerant can again absorb heat in the refrigeration area.

[0003] However, in some cases, after the refrigerant absorbs heat in the refrigeration area, the device for cooling the refrigerant, such as the heat dissipation fan, is difficult to quickly cool the refrigerant, so that the cooling effect of the heat exchange equipment on the refrigeration area is reduced. SUMMARY

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

[0005] The embodiments of the present application provide a cooling device, which comprises:

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

[0007] A second heat exchanger, comprising a second shell; the second shell has a second heat exchange cavity for storing heat exchange medium; and

[0008] A flow guide assembly 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.

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

[0010] The flow guide assembly comprises:

[0011] A first connecting pipeline, two ends of which are respectively in communication with the first outlet and the second inlet;

[0012] A second connecting pipeline, two ends of which are respectively in communication with the second outlet and the first inlet; and

[0013] a pump for providing a conveying power to convey the heat exchange medium in the first heat exchange cavity to the second heat exchange cavity through the first connecting pipeline and to convey the heat exchange medium in the second heat exchange cavity to the first heat exchange cavity through the second connecting pipeline.

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

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

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

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

[0018] Optionally, the first heat exchanger is provided with an overflow port for being used as an outlet for the heat exchange medium overflowing in the first heat exchanger; and 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 further comprises a waste pipeline; the second inlet is connected with a first multi-way valve, the first multi-way valve comprises at least a first port, a second port and a third port, the first port is connected with the second inlet, the second port is connected with the pump, and the third port is connected with the waste pipeline, the waste 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 with the second port and the third port is closed, and in the second state, the second port is connected with the third port and the first port is closed.

[0020] Optionally, the second inlet of the second heat exchanger is connected with a three-way connector, the three-way connector has a first connecting end, a second connecting end and a third connecting end; the first connecting end is connected with the second inlet; the second connecting end is connected with a waste discharge auxiliary pipeline, and the third connecting end is connected with 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 in communication with the first connecting pipeline and the waste discharge pipeline through the waste discharge auxiliary pipeline.

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

[0022] Optionally, at least one heat insulation plate is arranged 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 used, the plurality of heat exchange intervals are arranged along the direction of gravity.

[0023] Optionally, the heat exchange pipeline is in a spiral shape; when the cooling device is used, 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 conduction structure is arranged between the first shell and the second shell, and the heat conduction structure is in thermal contact with the first shell and the second shell respectively.

[0026] According to the plurality of embodiments provided in the specification, the first heat exchange cavity of the first heat exchanger is connected with the second heat exchange cavity through the drainage assembly, and the cooled heat exchange medium in the second heat exchange cavity is drained into the first heat exchange cavity, so that the heat exchange medium in the first heat exchange cavity exchanges with the heat exchange medium in the second heat exchange cavity, the temperature of the heat exchange medium in the first heat exchange cavity is reduced, the heat exchange medium in the first heat exchange cavity can be maintained at a lower temperature for a longer time, the heat exchange pipeline can be better cooled, and the cooling device can have a better cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A schematic view of a cooling device provided for an embodiment of the present specification.

[0028] Figure 2 A Figure 1 A schematic view of a cooling device provided for an embodiment of the present specification.

[0029] Figure 3 A Figure 1 A sectional view of a first heat exchanger provided for an embodiment of the present specification.

[0030] Figure 4 A Figure 1 A sectional view of a second heat exchanger provided for an embodiment of the present specification.

[0031] Figure 5 A schematic view of a cooling device provided for an embodiment of the present specification.

[0032] Figure 6 A schematic view of a cooling device provided for an embodiment of the present specification. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

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

[0035] Unless otherwise defined, all technical and scientific terms used in the present specification have the same meaning as commonly understood by one of ordinary skill in the art to which this present specification belongs. The terminology used in the present specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present specification. The term “and / or” used in the present specification includes any and all combinations of one or more of the associated listed items. The singular forms “a,” “an,” and “the” used in the embodiments of the present specification and the appended claims are intended to include plural forms as well, unless the context clearly indicates otherwise.

[0036] In the description of the present specification, it should be understood that the terms “first,” “second,” are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first,” “second” can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited.

[0037] In the description of the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of the simplified description of the present application, and do not indicate that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, that is, cannot be understood as limiting the present application.

[0038] In the description of the present application, unless otherwise explicitly defined, the terms "mounting", "connecting", "connecting", "fixing", "setting" and the like should be broadly understood. For example, "connecting" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the description of the present application, unless otherwise explicitly defined, the first feature "on", "over", "above" and "on", "below", "under", "below" or "under" the second feature can be the direct contact of the first feature and the second feature, or the indirect contact of the first feature and the second feature through the intermediate medium. Moreover, the first feature "over", "above" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than the horizontal height of the second feature. The first feature "under", "below" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than the horizontal height of the second feature.

[0040] Referring to Figures 1 to 4 The cooling device 100 provided by an embodiment of the present application comprises a first heat exchanger 110, a second heat exchanger 120 and a flow guide assembly. The first heat exchanger 110 comprises a first shell 111 and a heat exchange pipeline 112; the first shell 111 has a first heat exchange cavity 1111; the first heat exchange cavity 1111 is used for storing heat exchange medium; the heat exchange pipeline 112 is located in the first heat exchange cavity 1111. The second heat exchanger 120 comprises a second shell 121; the second shell 121 has a second heat exchange cavity 1211; the second heat exchange cavity 1211 is used for storing heat exchange medium. The flow guide assembly is used for conveying the heat exchange medium in the first heat exchange cavity 1111 to the second heat exchange cavity 1211, and conveying the heat exchange medium in the second heat exchange cavity 1211 to the first heat exchange cavity 1111.

[0041] It can be understood that the first heat exchanger 110 is used for cooling the target fluid. The second heat exchanger 120 is used for cooling the heat exchange medium in the first heat exchanger 110. Specifically, in the first heat exchanger 110, the heat exchange pipeline 112 is used for the target fluid to flow in, and the first heat exchange cavity 1111 is used for containing the heat exchange medium. The heat exchange medium in the first heat exchange cavity 1111 is transported to the second heat exchange cavity 1211 for cooling. The second heat exchanger 120 is used for cooling the heat exchange medium in the first heat exchange cavity 1111.

[0042] The cooling device described above transports the heat exchange medium in the first heat exchange cavity 1111 of the first heat exchanger 110 to the second heat exchange cavity 1211 through the flow guide assembly, so as to cool it through the second heat exchanger 120. At the same time, the cooled heat exchange medium in the second heat exchange cavity 1211 is transported into the first heat exchange cavity 1111, so that the first heat exchange cavity 1111 has heat exchange medium with 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 pipeline 112. Of course, after the target fluid flows into the heat exchange pipeline 112, it can 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 cavity 1111 through the second heat exchanger 120, the use time of the heat exchange medium in the first heat exchange cavity 1111 and the second heat exchange cavity 1211 can be prolonged, and the heat exchange medium can be replaced without short time, thereby avoiding resource waste.

[0045] Optionally, in some possible embodiments, the first shell and the second shell are integrally formed; the first shell and the shell 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 shell and the second shell constitute a cooling shell of the cooling device, and the cooling shell has a heat exchange cavity. The partition wall is arranged in 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 cavity 1111. The second heat exchanger 120 has a second inlet 1212 and a second outlet 1213 communicating with the second heat exchange cavity 1211. The flow guide assembly includes a first connecting pipe 210, a second connecting pipe 220, and a pump 230. The first connecting pipe 210 communicates with the first outlet 1113 and the second inlet 1212. The second connecting pipe 220 communicates with the second outlet 1213 and the first inlet 1112. The pump 230 is configured to drive the heat exchange medium in the first heat exchange cavity 1111 to flow through the first connecting pipe 210 to the second heat exchange cavity 1211, and to drive the heat exchange medium in the second heat exchange cavity 1211 to flow through the second connecting pipe 220 to the first heat exchange cavity 1111. Thus, the first heat exchange cavity 1111, the first connecting pipe 210, the second heat exchange cavity 1211, and the second connecting pipe 220 form a circulation loop. The first heat exchange cavity 1111 and the second heat exchange cavity 1211 can exchange the heat exchange medium contained therein.

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

[0048] In addition, when exchanging the heat exchange medium in the first heat exchange cavity 1111 with the heat exchange medium in the second heat exchange cavity 1211 through the circulation loop, the heat exchange medium with a higher temperature in the first heat exchange cavity 1111 is first flowed to the second heat exchange cavity 1211, so that the temperature of the heat exchange medium contained in the first heat exchange cavity 1111 can be reduced more quickly.

[0049] In the present embodiment, when the cooling device 100 is in use, as shown in the placement mode, Figure 3 the first inlet 1112 and the first outlet 1113 are located on the same side of the first housing 111. In this embodiment, along the direction of gravity, the first inlet 1112 is located at the bottom end of the side, and 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 housing 111, so that when the cooling device 100 is arranged in the target fluid equipment, the influence on other structures in the target fluid equipment is avoided, and the connection of the first connecting pipe 210 and the second connecting pipe 220 is facilitated.

[0051] The first inlet 1112 is located at the bottom end of the side of the first shell 111, and 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 cavity 1111 gradually moves upward during output, and the heat exchange medium cooled by the second heat exchanger 120 enters the first heat exchange cavity 1111 from the bottom side, so that the temperature of the heat exchange medium in the first heat exchange cavity 1111 is always lower near the bottom side of the first heat exchanger 110, thereby better ensuring the cooling effect of the first heat exchanger 110.

[0052] Further, the first outlet 1113 is located at the top end 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 cavity 1111 reaches the specified liquid level at the top end, for example, the first heat exchange cavity 1111 is filled, the heat exchange medium in the first heat exchange cavity 1111 can flow out from the first heat exchange cavity 1111 under the action of the pump 230, thereby ensuring the volume of the heat exchange medium in the first heat exchange cavity 1111.

[0053] Further, in the embodiment, the first inlet 1112 and the first outlet 1113 are located on the same side of the first shell 111. It can be understood that in another feasible embodiment, 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 sides 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, as shown in Figure 5 .

[0054] In some embodiments, the cooling device 100 is used, for example, in the placement mode as shown in Figure 3 , along the direction of gravity, the second inlet 1212 is located at the bottom end of the side of the second shell 121, and the second outlet 1213 is located at the top end of the side of the second shell 121. Therefore, only when the liquid level of the heat exchange medium in the second heat exchange cavity 1211 reaches the specified liquid level at the top end, for example, the second heat exchange cavity 1211 is filled, the heat exchange medium can be output from the second heat exchange cavity 1211. In this way, it is also limited that the second heat exchange cavity 1211 must contain enough heat exchange medium to exchange the heat exchange medium with the first heat exchange cavity 1111.

[0055] In the embodiment, the second inlet 1212 and the second outlet 1213 are located on the same side of the second heat exchanger 120. It can be understood that in another feasible embodiment, 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, as shown in Figure 5

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

[0057] The second heat exchanger 120 does not contact the heat source, so that the heat in the heat exchange medium in the second heat exchange cavity 1211 is in a state of volatilization from the second heat exchanger 120 to the outside, realizing the gradual cooling of the heat exchange medium in the second heat exchange cavity 1211. Further, the intermediate pipeline 122 is located in the second heat exchange cavity 1211, so that the intermediate pipeline 122 has a large contact area with the heat exchange medium in the second heat exchange cavity 1211. When the heat exchange medium flows in the intermediate pipeline 122, heat exchange occurs between the heat exchange medium in the intermediate pipeline 122 and the heat exchange medium in the second heat exchange cavity 1211. Because the temperature of the heat exchange medium in the second heat exchange cavity 1211 is increased after the heat exchange medium is exchanged between the second heat exchange cavity 1211 and the first heat exchange cavity 1111, the temperature is often higher than that of the heat exchange medium flowing in the intermediate pipeline 122. At this time, the heat exchange medium flowing in the intermediate pipeline 122 will take away part of the heat of the heat exchange medium in the second heat exchange cavity 1211, realizing a certain degree of reduction of the temperature of the heat exchange medium in the second heat exchanger 120.

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

[0059] Specifically, when the cooling device 100 is used, as shown in the placement mode Figure 4 , 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 heat exchange medium to enter the second heat exchange cavity 121 from the medium supply port 1214, so that the heat exchange medium close to the bottom end of the second shell 121 in the second heat exchange cavity 121 has a relatively low temperature. ​

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

[0061] In some embodiments, the medium supply port 1214 and the heat exchange medium outlet 126 are connected through a 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 pipeline 122 falls within the range of 4mm to 8mm, the outer diameter of the intermediate pipeline 122 falls within the range of 6mm to 10mm, the wall thickness of the intermediate pipeline 122 falls within the range of 0.8mm to 1.2mm, and the total length of the intermediate pipeline 122 falls within the range of 0.2m to 2m. Thus, under the premise of meeting the heat exchange efficiency, the water pressure in the intermediate pipeline 122 can also be avoided to be too large. In addition, the inner diameter of the intermediate pipeline 122 is larger, and the flow rate of the heat exchange medium in the intermediate pipeline 122 can be reduced to fully exert the cooling effect of the heat exchange medium in the intermediate pipeline 122. Of course, it can be understood that if the heat exchange medium in the intermediate pipeline 122 is water and the water passing through the intermediate pipeline 122 can be reused, according to the specific circumstances, the heat exchange medium in the intermediate pipeline 122 can have a larger flow rate without causing resource waste. In this way, the second heat exchanger 120 can also have better heat exchange effect. In some embodiments, the intermediate pipeline 122 is repeatedly bent. Thus, the length of the intermediate pipeline 122 is longer, the contact area between the intermediate pipeline 122 and the heat exchange medium in the second heat exchange cavity 1211 is larger, and the heat exchange efficiency of the second heat exchanger 120 is improved. The above wall thickness setting makes the intermediate pipeline 122 easier to bend, and the intermediate pipeline 122 is not easy to break and cause heat exchange medium leakage due to breaking; and the intermediate pipeline 122 is not easy to deform and cause the pipe diameter to narrow due to deformation, thereby avoiding affecting the flow effect of the heat exchange medium due to the narrowing of the pipe diameter.

[0063] In some embodiments, the first heat exchanger 110 is provided with an overflow outlet 270 for the overflow of the heat exchange medium in the first heat exchanger 110; when the cooling device 100 is used, the overflow outlet 270 is located at the upper end of the first heat exchanger 110 in the direction of gravity. Thus, when the heat exchange medium is injected into the first heat exchange cavity 1111, more heat exchange medium can be injected into the first heat exchange cavity 1111, so that the first heat exchange cavity 1111 is filled with heat exchange medium, thereby fully utilizing the space of the first heat exchange cavity 1111.

[0064] In addition, it can be understood that when the cooling device 100 is used, for example, Figure 3In the shown arrangement, along the direction of gravity, the overflow outlet 270 is located at the upper end of the first heat exchanger 110, so that the first heat exchange cavity 1111 can accommodate more heat exchange medium, and the internal space of the first heat exchange cavity 1111 is fully utilized. The first inlet 1112 is located at the bottom end of the side of the first shell 111, and the heat exchange medium filled into the first heat exchange cavity 1111 is filled from bottom to top. The gas flow at the upper side of the heat exchange medium can be discharged through the overflow outlet 270, so as to avoid the increase of the pressure in the first heat exchange cavity 1111, which affects the filling speed and the total amount of the heat exchange medium.

[0065] In addition, when filling the heat exchange medium into the first heat exchange cavity 1111, the total amount of the input can also be greater than the total amount of the heat exchange medium that can be accommodated by the circulating loop. The excess part can be discharged through the overflow outlet 270, so as to ensure that the first heat exchange cavity 1111 is filled with heat exchange medium.

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

[0067] It can be understood that, in the first state of the first multi-way valve 232, the first connecting pipeline 210 is in communication with the second inlet 1212, and the first connecting pipeline 210 is disconnected from the waste discharge pipeline 240, so that the heat exchange medium in the first connecting pipeline 210 can be transported into the second heat exchange cavity 1211 through the second inlet 1212. The first state of the first multi-way valve 232 is suitable for the process of transporting the heat exchange medium in the first heat exchange cavity 1111 to the second heat exchange cavity 1211, i.e. the heat exchange medium in the first heat exchange cavity 1111 is transported to the second heat exchange cavity 1211 through the first connecting pipeline 210. In the second state of the first multi-way valve 232, the waste discharge pipeline 240 is in communication with the first connecting pipeline 210, and the first connecting pipeline 210 is disconnected from the second inlet 1212, so that the heat exchange medium in the first connecting pipeline 210 can be discharged through the waste discharge pipeline 240. The second state of the first multi-way valve 232 is suitable for the process of discharging the heat exchange medium in the circulating loop. Specifically, in the circulating loop, the heat exchange medium flowing to the first connecting pipeline 210 is discharged through the waste discharge pipeline 240.

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

[0069] In some embodiments, the second inlet 1212 of the second heat exchanger 120 is connected with a three-way connector 260, the three-way connector 260 has a first connecting end 261, a second connecting end 262 and a third connecting end 263; the first connecting end 261 is connected with the second inlet 1212; the second connecting end 262 is connected with a waste auxiliary pipeline 280, and the third connecting end 263 is connected with 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 communicated with the first connecting pipeline 210 and the waste pipeline 240 through the waste auxiliary pipeline 280. That is, the heat exchange medium in the second heat exchange cavity 1211 can be discharged after sequentially passing through the second inlet 1212, the waste auxiliary pipeline 280, the first connecting pipeline 210 and the waste pipeline 240.

[0070] In some embodiments, the waste auxiliary pipeline 280 is connected with the first connecting pipeline 210 through a second multi-way valve 231, 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 with the first outlet 1113 of the first heat exchange cavity 1111, the fifth port 2312 of the second multi-way valve 231 is connected with the first connecting pipeline 210, and the sixth port 2313 of the second multi-way valve 231 is connected with the waste 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 communicated, 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 communicated, and the fourth port 2311 is closed.

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

[0072] In the embodiment, the second multi-way valve 231 is located between the first outlet 1113 of the first heat exchange cavity 1111 and the pump 230. The heat exchange medium in the second heat exchange cavity 1211 is discharged through the exhaust auxiliary pipeline 280, the first connecting pipeline 210 and the exhaust pipeline 240 under the action of the pump 230. The heat exchange medium in the second heat exchange cavity 1211 is reduced, and the pressure is reduced, so that the heat exchange medium in the first heat exchange cavity 1111 flows reversely to the second heat exchange cavity 1211 along the second connecting pipeline 220, and then is discharged through the exhaust auxiliary pipeline 280, the first connecting pipeline 210 and the exhaust pipeline 240, so that the heat exchange medium in the circulating loop can be exhausted.

[0073] It can be understood that, referring to Figures 1 to 2 Because the first multi-way valve 232, the second multi-way valve 231 and the pump 230 are arranged in the circulating loop, 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.

[0074] The first state of the first multi-way valve 232 and the first state of the second multi-way valve 231 are suitable for the process of transporting the heat exchange medium in the first heat exchange cavity 1111 to the second heat exchange cavity 1211, that is, the heat exchange medium in the first heat exchange cavity 1111 is transported to the second heat exchange cavity 1211 through the first connecting pipeline 210. The first connecting pipeline 210 in the process 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. And the heat exchange medium in the first heat exchange cavity 1111 is transported to the second heat exchange cavity 1211 in the order of the above 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 suitable for the process of discharging the heat exchange medium in the circulating loop, that is, the second inlet 1212 of the second heat exchanger 120 is communicated with the first connecting pipeline 210 and the exhaust pipeline 240 through the exhaust auxiliary pipeline 280. The heat exchange medium in the second heat exchange cavity 1211 can be discharged in turn through the second inlet 1212, the exhaust auxiliary pipeline 280, the first connecting pipeline 210 and the exhaust pipeline 240. The first connecting pipeline 210 in the process 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. And the heat exchange medium in the first heat exchange cavity 1111 is transported to the exhaust pipeline 240 in the order of the above two pipelines and then is discharged.

[0076] In some embodiments, at least one heat insulation plate 113 is arranged in the first heat exchange cavity 1111 to divide the first heat exchange cavity 1111 into a plurality of heat exchange sections 1115. When the cooling device 100 is in use, the plurality of heat exchange sections 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 section 1115. And due to the arrangement of the heat insulation plate 113, the heat exchange between adjacent heat exchange sections 1115 is reduced, so that there is a certain temperature difference between adjacent heat exchange sections 1115. Thus, the closer to the bottom side of the heat exchange section 1115, the lower the temperature, to further improve the cooling effect on the target fluid.

[0077] Optionally, the heat exchange pipeline 112 is a stainless steel pipe; the intermediate pipeline 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 material has good heat transfer efficiency, and the heat exchange pipeline 112, the intermediate pipeline 122, the first shell 111 and the second shell 121 are all made of stainless steel material, so that the first heat exchanger 110 and the second heat exchanger 120 both have good heat exchange effect. Of course, it can be understood that the materials of the heat exchange pipeline 112, the intermediate pipeline 122, the first shell 111 and the second shell 121 are not limited to stainless steel, but can also be other heat-conducting materials such as copper. It can also be understood that the materials of the heat exchange pipeline 112, the intermediate pipeline 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 made of 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 speed of the first heat exchanger 110 and the second heat exchanger 120, and helping to reduce the temperature of the heat exchange medium.

[0079] Further, the outer surface of the first shell 111 and the second shell 121 can also be provided with heat dissipation fins or fans and the like structure 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 speed of the first heat exchanger 110 and the second heat exchanger 120, and helping to reduce the temperature of the heat exchange medium.

[0080] In some embodiments, the heat exchange pipeline 112 is in a spiral shape, and when the cooling device is in use, the heat exchange pipeline 112 extends spirally along the direction of gravity. Thus, when the target fluid flows in the heat exchange pipeline 112, it flows downward along the direction of gravity, which is consistent with the direction of gravity of the target fluid, so that the target fluid can flow more smoothly through the heat exchange pipeline 112.

[0081] In the embodiment, the projection of the heat exchange pipeline 112 on the plane perpendicular to the direction of gravity is approximately a rectangular long with rounded corners. The space in the first heat exchange cavity 1111 can be used more, so that the length of the heat exchange pipeline 112 can be as long as possible, thereby increasing the flow time of the target fluid and improving the cooling effect. It can be understood that in another feasible embodiment, when the shape of the first heat exchange cavity changes, the shape of the heat exchange pipeline can also be adjusted accordingly. Moreover, the shape of the heat exchange pipeline is not limited to being approximately consistent with the shape of the first heat exchange cavity in the direction perpendicular to the axis of the heat exchange pipeline.

[0082] In the embodiment, the first heat exchange cavity 1111 and the second heat exchange cavity 1211 are both cuboids. Therefore, the dead angle in the first heat exchange cavity 1111 and the second heat exchange cavity 1211 is less, reducing the accumulation of dirt, such as the accumulation of limescale. Moreover, after some dirt accumulates in the first heat exchange cavity 1111 and the second heat exchange cavity 1211, it is also convenient to clean.

[0083] It can be understood that in another feasible embodiment, the shape of the first heat exchange cavity and the second heat exchange cavity is not limited to being a cuboid, but can also be any regular or irregular shape.

[0084] Optionally, the inner diameter of the heat exchange pipeline 112 falls within the range of 2mm-4mm, the outer diameter of the heat exchange pipeline 112 falls within the range of 3mm-5mm, the wall thickness of the heat exchange pipeline 112 falls within the range of 0.3mm-0.8mm, and the total length of the heat exchange pipeline 112 falls within the range of 4.5m-5m. Therefore, in the case that the target fluid can smoothly pass through the heat exchange pipeline 112, the contact area of the heat exchange pipeline 112 with the heat exchange medium in the first heat exchange cavity 1111 is larger, and the heat exchange efficiency is higher.

[0085] Referring to Figure 6 Another embodiment of the cooling device 200 provided by 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, there is heat exchange 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 that in the second heat exchange cavity 1211, so that the temperature of the first shell 111 is higher than that of the second shell 121. By thermal contact between the first shell 111 and the second shell 121, the temperature of the first shell 111 can be reduced, thereby reducing the temperature of the heat exchange medium in the first heat exchange cavity 1111 of the first shell 111 and improving the heat exchange effect of the first heat exchanger 110.

[0086] Specifically, the first shell 111 has a first thermal contact surface 1114 in thermal contact with the second shell 121; the second shell 121 has a second thermal contact surface 1215 matched with the first thermal contact surface 1114. The first thermal contact surface 1114 and the second thermal contact surface 1215 are in contact, realizing heat exchange between the first shell 111 and the second shell 121.

[0087] In the embodiment, the first thermal contact surface 1114 and the second thermal contact surface 1215 are both in plane. It can be understood that, in another feasible embodiment, the first thermal contact surface and the second thermal contact surface are not limited to be in plane, but can also be in regular or irregular shape, such as curved surface. For example, the first thermal contact surface and the second thermal contact surface can both be in uneven shape, so as to increase the thermal contact area of the first thermal contact surface and the second thermal contact surface, and further increase the heat exchange efficiency of the first shell and the second shell.

[0088] Optionally, in some feasible embodiments, the first shell 111 and the second shell 121 are relatively fixed; the cooling device 100 further comprises a heat conduction structure in thermal contact with the first shell 111 and the second shell 121. The heat conduction structure is arranged between the first shell 111 and the second shell 121 and 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, but heat transfer is realized through the heat conduction structure, so as to reduce the temperature of the first shell 121 and improve the heat exchange effect of the first heat exchanger 110. It can be understood that the heat conduction structure is formed of a heat conduction material, such as tin paste, silicone grease, etc., so that heat transfer can be realized with the first shell 111 and the second shell 121.

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

[0090] It can be understood that, in another feasible embodiment, the cooling device is not limited to be applied in the beverage equipment, but can also be applied in other equipment requiring cooling of the target fluid.

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

[0092] It can be understood that the various embodiments described in the present specification can be implemented alone or in combination, and the embodiments of the present specification do not limit this.

[0093] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein.

[0094] The above merely describes specific embodiments of the present specification, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present specification, which shall be encompassed in the protection scope of the present specification. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A cooling device, characterized in that, The cooling device includes: A first heat exchanger includes a first shell and heat exchange piping; the first shell has a first heat exchange cavity for storing a heat exchange medium; the heat exchange piping is located inside the first heat exchange cavity. A second heat exchanger, the second heat exchanger including a second housing; the second housing having a second heat exchange cavity for storing a heat exchange medium; and... A diversion assembly is used to transport the heat exchange medium in the first heat exchange chamber to the second heat exchange chamber, and to transport the heat exchange medium in the second heat exchange chamber to the first heat exchange chamber.

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 chamber; the second heat exchanger has a second inlet and a second outlet communicating with the second heat exchange chamber; The drainage component includes: The first connecting pipe is connected at both ends to the first outlet and the second inlet, respectively. A second connecting pipe, with its two ends respectively connected to the second outlet and the first inlet; and A pump is used to provide transport power to transport the heat exchange medium in the first heat exchange chamber to the second heat exchange chamber through the first connecting pipeline, and to transport 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 used, 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; the second heat exchanger is provided with an intermediate pipeline for connecting the heat exchange medium outlet and the heat exchange medium inlet; wherein, the heat exchange medium inlet is used to connect to the 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 that communicates with the second heat exchange chamber, and the medium supply port is connected to 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 pipe is in the range of 4mm to 8mm, the outer diameter of the intermediate pipe is in the range of 6mm to 10mm, the wall thickness of the intermediate pipe is in the range of 0.8mm to 1.2mm, and the total length of the intermediate pipe is in 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 serves as an outlet for the overflow of the heat exchange medium inside 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 further includes a waste discharge pipe; the second inlet is connected to a first multi-way valve, the first multi-way valve including at least a first port, a second port and a third port, the first port being connected to the second inlet, the second port being connected to the pump, and the third port being connected to the waste discharge pipe, the waste discharge pipe being used to drain 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.

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 8, characterized in that, The waste discharge auxiliary pipeline is connected to the first connecting pipeline through a second multi-way valve, the second multi-way valve including 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, The first heat exchange chamber is provided with at least one heat insulation plate to divide the first heat exchange chamber into several heat exchange intervals; when the cooling device is in use, the several 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 is in the range of 2mm to 4mm, the outer diameter of the heat exchange pipeline is in the range of 3mm to 5mm, the wall thickness of the heat exchange pipeline is in the range of 0.3mm to 0.8mm, and the total length of the heat exchange pipeline is in 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 housing and the second housing, and the heat-conducting structure is in thermal contact with the first housing and the second housing respectively.

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