condenser

Abstract

The present application provides a condenser, comprising a shell and a plurality of flow tubes. The shell comprises an inflow chamber, an outflow chamber, a first flow inlet, a first flow outlet, a containing space, a second flow inlet and a second flow outlet. The inflow chamber and the outflow chamber are respectively located at opposite sides of the shell. The first flow inlet and the first flow outlet are respectively communicated with the inflow chamber and the outflow chamber. The containing space contains a cooling liquid. The second flow inlet and the second flow outlet are communicated with the containing space. The flow tubes are arranged in the containing space. The opposite ends of each flow tube are respectively communicated with the inflow chamber and the outflow chamber. Working fluid flows from the inflow chamber to the outflow chamber through the flow tubes. The first flow inlet is closer to the second flow outlet than the first flow outlet, and the first flow outlet is closer to the second flow inlet than the first flow inlet. The condenser provided by the present application can ensure the temperature difference between the cooling liquid and the working fluid, thereby improving the heat exchange efficiency between the cooling liquid and the working fluid.

Description

Technical Field

[0001] The present invention relates to a condenser, and more particularly to a condenser comprising a flow tube. Background Technology

[0002] Generally, in immersion or drip cooling systems, the dielectric liquid submerged or dripped onto the heat source evaporates into a gaseous state and then flows to a condenser located in the rack to condense back into a liquid state. Furthermore, the gaseous dielectric liquid flowing into the condenser is typically cooled by airflow guided by a fan.

[0003] However, such air-cooled condensers need to be quite large to effectively dissipate the heat generated by high-heat sources. Therefore, it is difficult to install an air-cooled condenser sufficient to meet the heat dissipation requirements of high-heat sources within the limited space of the rack. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the object of the present invention is to provide a condenser to solve the above-mentioned problems in the prior art, so as to effectively cool a high heat source.

[0005] To achieve the above and other related objectives, the present invention provides a condenser for cooling a working fluid with a coolant. The condenser comprises: a housing including an inflow chamber, an outflow chamber, a first inlet, a first outlet, a receiving space, a second inlet, and a second outlet. The inflow chamber and the outflow chamber are located on opposite sides of the housing. The first inlet and the first outlet are respectively connected to the inflow chamber and the outflow chamber. The receiving space is not connected to the inflow chamber and the outflow chamber and is used to receive the coolant. The second inlet and the second outlet are connected to the receiving space. A plurality of flow tubes are disposed in the receiving space. The opposite ends of each flow tube are respectively connected to the inflow chamber and the outflow chamber. The working fluid flows from the inflow chamber to the outflow chamber through the flow tubes. The first inlet is closer to the second outlet than the first outlet, and the first outlet is closer to the second inlet than the first inlet.

[0006] In one embodiment of the present invention, the condenser further includes at least one baffle, the at least one baffle being fixed to the housing and located in the accommodating space.

[0007] In one embodiment of the present invention, the at least one baffle has a plurality of perforations, and at least a portion of the flow tubes are respectively disposed through the perforations.

[0008] In one embodiment of the present invention, the number of the at least one baffle is multiple, and the baffles are staggered with each other.

[0009] In one embodiment of the present invention, the condenser further includes a plurality of capillary structures, which are respectively disposed in the flow tube.

[0010] In one embodiment of the present invention, each of the capillary structures extends from one end of each flow tube that communicates with the inflow chamber to one end of each flow tube that communicates with the outflow chamber, and the thickness of each capillary structure is the same from the end near the inflow chamber to the end near the outflow chamber.

[0011] In one embodiment of the present invention, each of the capillary structures extends from one end of each flow tube that communicates with the inflow chamber to one end of each flow tube that communicates with the outflow chamber, and the thickness of each capillary structure gradually increases from the end near the inflow chamber to the end near the outflow chamber.

[0012] In one embodiment of the present invention, the diameter of the first inlet is larger than the diameter of the first outlet.

[0013] In one embodiment of the present invention, the diameter of each flow tube gradually decreases from the end connected to the inflow chamber to the end connected to the outflow chamber.

[0014] In one embodiment of the present invention, in a gravitational direction, the first inlet of the housing is located above the first outlet of the housing.

[0015] According to the condenser disclosed in the above embodiments, the first inlet is closer to the second outlet than the first outlet, and the first outlet is closer to the second inlet than the first inlet. Therefore, the coolant and the working fluid can flow in opposite directions in the receiving space and the flow tube, respectively. This ensures a temperature difference between the coolant and the working fluid, thereby improving the heat exchange efficiency between them. Attached Figure Description

[0016] Figure 1 The image shown is a perspective view of the condenser in the first embodiment of the present invention.

[0017] Figure 2 Displayed as Figure 1 The side view of the condenser shown.

[0018] Figure 3 Displayed as Figure 1 The condenser shown is a side view from another perspective.

[0019] Figure 4 Displayed as Figure 1A schematic cross-sectional view of the condenser is shown.

[0020] Figure 5 Displayed as Figure 1 The diagram shows a cross-sectional view of the flow tubes and capillary structure of the condenser.

[0021] Figure 6 The diagram shown is a cross-sectional view of the flow tube and capillary structure of the condenser in the second embodiment of the present invention.

[0022] Component designation explanation

[0023] 10 Condenser

[0024] 100 housing

[0025] 101 flows into the chamber

[0026] 102 outflow chamber

[0027] 103 First-class entrance

[0028] 104 First-class exit

[0029] 105 storage space

[0030] 106 Second Stream Entrance

[0031] 107 Second Stream Exit

[0032] 200 flow tube

[0033] 201 inner wall

[0034] 202 Steam passage

[0035] 300 baffle

[0036] 301 perforation

[0037] 400 capillary structure

[0038] D1, D2, D3 caliber

[0039] G - Gravity direction

[0040] T thickness

[0041] 101a flows into the chamber

[0042] 102a Flows out of the chamber

[0043] 200a flow tube

[0044] 201a inner wall

[0045] 202a Steam passage

[0046] 400a capillary structure

[0047] Ta thickness Detailed Implementation

[0048] The following detailed description of the embodiments of the present invention outlines its features and advantages. This description is sufficient to enable anyone skilled in the art to understand the technical content of the embodiments of the present invention and to implement them accordingly. Furthermore, based on the disclosure of this specification, the scope of the claims, and the drawings, anyone skilled in the art can easily understand the related objectives and advantages of the present invention. The following embodiments are used to further illustrate the points of the present invention, but are not intended to limit the scope of the present invention in any way.

[0049] Please see Figures 1 to 4 , Figure 1 This is a perspective view of a condenser according to a first embodiment of the present invention. Figure 2 for Figure 1 Side view of the condenser in the image. Figure 3 for Figure 1 The condenser in the middle is viewed from another angle as a side view. Figure 4 for Figure 1 A cross-sectional schematic diagram of the condenser in the diagram.

[0050] The condenser 10 is used to cool a working fluid (not shown) with a coolant (not shown). The coolant is, for example, water. The working fluid is, for example, a dielectric fluid. In this embodiment, the condenser 10 includes a housing 100, a plurality of flow tubes 200, a plurality of baffles 300, and a plurality of capillary structures 400.

[0051] In this embodiment, the housing 100 includes an inflow chamber 101, an outflow chamber 102, a first inlet 103, a first outlet 104, a receiving space 105, a second inlet 106, and a second outlet 107. The inflow chamber 101 and the outflow chamber 102 are located on opposite sides of the housing 100. The first inlet 103 and the first outlet 104 are respectively connected to the inflow chamber 101 and the outflow chamber 102.

[0052] Furthermore, in this embodiment, the diameter D1 of the first inlet 103 is larger than the diameter D2 of the first outlet 104. Therefore, the difference between the flow rate of the gaseous working fluid flowing from the first inlet 103 into the inflow chamber 101 and the flow rate of the liquid working fluid flowing out of the outflow chamber 102 through the first outlet 104 is reduced, thereby increasing the cooling efficiency between the working fluid and the coolant, while reducing the overall volume of the condenser 10.

[0053] Furthermore, in this embodiment, the first inlet 103 is located above the first outlet 104 in a gravitational direction G. Therefore, the condenser 10 can more easily recover the liquid working fluid flowing out of the first outlet 104.

[0054] Furthermore, the first inlet 103 is closer to the second outlet 107 than the first outlet 104, and the first outlet 104 is closer to the second inlet 106 than the first inlet 103.

[0055] The accommodating space 105 is not connected to the inflow chamber 101 or the outflow chamber 102 and is used to accommodate coolant. The second inlet 106 and the second outlet 107 are connected to the accommodating space 105.

[0056] Flow tubes 200 are disposed in the accommodating space 105. The opposite ends of each flow tube 200 are connected to the inflow chamber 101 and the outflow chamber 102, respectively. Working fluid flows from the inflow chamber 101 through the flow tubes 200 to the outflow chamber 102. Furthermore, in this embodiment, the diameter D3 of each flow tube 200 gradually decreases from the end connected to the inflow chamber 101 to the end connected to the outflow chamber 102. Therefore, the difference between the flow velocity of the gaseous working fluid and the flow velocity of the liquid working fluid in the flow tubes 200 is reduced, thereby improving the working fluid recovery efficiency. In other embodiments, the diameter of each flow tube may be uniform from the end connected to the inflow chamber to the end connected to the outflow chamber.

[0057] In this embodiment, the baffles 300 are fixed to the housing 100 and located in the accommodating space 105, allowing the coolant to remain in the accommodating space 105 for a longer time, thereby increasing the heat exchange efficiency between the working fluid and the coolant. In this embodiment, each of the baffles 300 has a plurality of perforations 301. At least a portion of the flow tube 200 passes through the perforations 301 of each baffle 300. Furthermore, the baffles 300 are staggered relative to each other, which can further increase the residence time of the coolant in the accommodating space 105. In some other embodiments, the baffles may not need to be staggered relative to each other. In other still embodiments, the baffles may not need to have perforations and may be directly fixed to the outer wall of the flow tube. In yet another embodiment, the condenser may not need to include the baffles 300.

[0058] Please see Figure 5 , Figure 5 for Figure 1The diagram shows a cross-sectional view of the flow tubes and capillary structures of the condenser. Capillary structures 400 are respectively disposed in the inner wall surface 201 of the flow tubes 200 and surround a vapor channel 202 within the flow tubes 200. In the flow tubes 200, the gaseous working fluid mainly flows along the vapor channel 202, while the liquid working fluid mainly flows along the capillary structures 400. The capillary structures 400 assist the liquid working fluid in flowing from the flow tubes 200 to the outlet chamber 102, thereby promoting the recovery of the working fluid. In this embodiment, each capillary structure 400 extends from the end of each flow tube 200 connected to the inflow chamber 101 to the end of each flow tube 200 connected to the outlet chamber 102, and the thickness T of each capillary structure 400 relative to the inner wall surface 201 of each flow tube 200 is consistent from the end near the inflow chamber 101 to the end near the outlet chamber 102, but the invention is not limited thereto.

[0059] Please see Figure 6 , Figure 6 This is a schematic cross-sectional view of the flow tubes and capillary structures of a condenser according to a second embodiment of the present invention. In this embodiment, in each flow tube 200a, the thickness Ta of each capillary structure 400a relative to the inner wall surface 201a of each flow tube 200a gradually increases from the end near the inflow chamber 101a to the end near the outflow chamber 102a. As a result, the vapor channel 202a surrounded by the capillary structure 400a gradually narrows from the end near the inflow chamber 101a to the end near the outflow chamber 102a. Therefore, the difference between the flow velocity of the gaseous working fluid and the flow velocity of the liquid working fluid in the flow tube 200a can be further reduced, thereby improving the working fluid recovery efficiency.

[0060] According to the condenser disclosed in the above embodiments, the first inlet is closer to the second outlet than the first outlet, and the first outlet is closer to the second inlet than the first inlet. Therefore, the coolant and the working fluid can flow in opposite directions in the receiving space and the flow tube, respectively. This ensures a temperature difference between the coolant and the working fluid, thereby improving the heat exchange efficiency between them.

[0061] In one embodiment of the present invention, the condenser of the present invention can be applied to a server, which can be used for artificial intelligence (AI) computing, edge computing, or as a 5G server, cloud server, or vehicle networking server.

[0062] Although the present invention has been disclosed above with reference to the foregoing embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the claims of the present invention.

Claims

1. A condenser characterized by, A condenser for cooling a working fluid by a coolant, the condenser comprising: a housing including an inlet chamber, an outlet chamber, a first inlet port, a first outlet port, a receiving space, a second inlet port and a second outlet port, the inlet chamber and the outlet chamber are located at opposite sides of the housing respectively, the first inlet port and the first outlet port are communicated with the inlet chamber and the outlet chamber respectively, the receiving space is not communicated with the inlet chamber and the outlet chamber and is used for receiving the coolant, the second inlet port and the second outlet port are communicated with the receiving space; and a plurality of flow tubes arranged in the receiving space, opposite ends of each of the flow tubes are communicated with the inlet chamber and the outlet chamber respectively, the working fluid is used to flow from the inlet chamber to the outlet chamber through the flow tubes, a diameter of each of the flow tubes gradually decreases from one end communicated with the inlet chamber to the other end communicated with the outlet chamber; wherein the first inlet port is closer to the second outlet port than the first outlet port, and the first outlet port is closer to the second inlet port than the first inlet port; wherein the condenser further comprises a plurality of capillary structures, the capillary structures are arranged in the flow tubes respectively, each of the capillary structures extends from one end of each of the flow tubes communicated with the inlet chamber to the other end of each of the flow tubes communicated with the outlet chamber, and a thickness of each of the capillary structures gradually increases from one end close to the inlet chamber to the other end close to the outlet chamber. The condenser further comprises at least one baffle, the at least one baffle is fixed to the housing and located in the receiving space.

2. The condenser of claim 1, wherein: The at least one baffle has a plurality of perforations, at least part of the flow tubes are respectively arranged in the perforations.

3. The condenser of claim 2, wherein: The number of the at least one baffle is a plurality, the baffles are staggered with each other.

4. The condenser of claim 3, wherein: The diameter of the first inlet port is greater than the diameter of the first outlet port.

5. The condenser of claim 1, wherein: In a gravity direction, the first inlet port of the housing is located above the first outlet port of the housing.

6. The condenser of claim 1, wherein: ​

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