Two-phase cooling system and its flow guide

Abstract

A two-phase cooling system includes: a sealed tank; a condenser module having a plurality of condenser tubes located above the interior of the sealed tank and arranged longitudinally at intervals; and a plurality of flow guides, each flow guide having at least one inclined plate and at least one connecting portion, the connecting portion connecting the inclined plate and connecting any condenser tube or the sealed tank, the inclined plate extending between two adjacent condenser tubes.

Description

Technical Field

[0001] This invention relates to a cooling system and its components, particularly a two-phase cooling system and its flow guide. Prior Technology

[0002] With the rapid increase in the power and heat flux density of heat-generating components in computer computing-related electronic components, immersion cooling is currently one of the relatively efficient cooling technologies to quickly reduce the heat generated by electronic computing components.

[0003] Generally, a conventional two-phase cooling system typically includes a sealed tank and a condenser module. The sealed tank contains a liquid coolant (such as perfluoroketone, which has a boiling point close to 50°C), and the electronic computing components are immersed in the liquid coolant. The condenser module is located at the top of the sealed tank and has several condenser tubes arranged longitudinally at intervals. Accordingly, when the operating temperature of the electronic computing components rises, the liquid coolant around the components absorbs heat and boils, turning into a gaseous state. The gaseous coolant rises and condenses back into a liquid state upon contact with the relatively low-temperature condenser tubes, dripping back into the space below. This achieves the effect of coolant circulation without requiring additional resources or pump power for heat dissipation, effectively reducing electricity consumption and carbon emissions in related industries. Summary of the Invention

[0004] However, in conventional two-phase cooling systems, if the operating temperature of the electronic computing components rises rapidly within a short period, a large amount of liquid coolant will quickly vaporize, producing a large amount of gaseous coolant. At this time, the walls of the several condenser tubes will continuously condense a large amount of liquid coolant, which flows downwards almost like a water curtain due to gravity. As a result, the lower condenser tube, in addition to the liquid coolant it produces, will also be continuously sprayed with liquid coolant from the upper condenser tube. This easily leads to the formation of a water film with a low thermal conductivity on the wall of the lower condenser tube, reducing its condensation efficiency and significantly negatively impacting the overall condensation efficiency of the condensation module.

[0005] In view of the shortcomings of the aforementioned conventional technology, the inventor felt that it was not perfect, so he devoted his mind to studying and overcoming it, and then developed a two-phase cooling system. The condenser module is equipped with a flow guide, which can effectively prevent the formation of a water film on the tube wall of the condenser.

[0006] To achieve the above and other objectives, the present invention provides a two-phase cooling system comprising: a sealed tank; a condensation module having a plurality of condenser tubes located above the interior of the sealed tank and arranged longitudinally at intervals; and a plurality of flow guides, each flow guide having at least one inclined plate and at least one connecting portion, the connecting portion connecting the inclined plate, the connecting portion connecting any condenser tube or the sealed tank, the inclined plate extending between two adjacent condenser tubes.

[0007] In the aforementioned two-phase cooling system, the inclined plate has a liquid outlet edge, which can be relatively close to the wall of the sealed tank.

[0008] In the aforementioned two-phase cooling system, the inclined plate has a liquid outlet edge, and the condenser tube located below has an end edge on the same side as the liquid outlet edge. The liquid outlet edge of the inclined plate can protrude beyond the end edge.

[0009] In the two-phase cooling system described above, the number of inclined plates of the flow guide can be several, and the joint can connect several inclined plates simultaneously.

[0010] In the aforementioned two-phase cooling system, the joint may have a connecting piece, a hook, and an abutting piece. The connecting piece may connect the plurality of inclined plates, the hook may be connected to the connecting piece, and the abutting piece may be connected to a liquid outlet edge of one of the inclined plates. The hook may hook onto one of the condenser tubes, and the abutting piece may block the inner or outer side of another condenser tube.

[0011] In the aforementioned two-phase cooling system, the connecting piece can abut against the inner side of the plurality of condenser tubes, and the abutting piece can abut against the outer side of one of the condenser tubes; or the connecting piece can abut against the outer side of the plurality of condenser tubes, and the abutting piece can abut against the inner side of one of the condenser tubes.

[0012] In the aforementioned two-phase cooling system, the joint may have at least one connecting piece and at least one first protrusion. The connecting piece may connect to the plurality of inclined plates, and the first protrusion may connect to and protrude from the lower surface of the inclined plate. The first protrusion may abut against the condenser tube below.

[0013] In the two-phase cooling system described above, an inclined plate can be configured between any two of the condenser tubes.

[0014] In the two-phase cooling system described above, the flow guide may have only a single inclined plate.

[0015] In the aforementioned two-phase cooling system, the plurality of condenser tubes can be divided into inner ring condenser tubes and outer ring condenser tubes, with the outer ring condenser tubes located on the outer periphery of the inner ring condenser tubes; the number of inclined plates can be several, and the joint can have at least one connecting piece, at least one first protrusion, and at least one second protrusion. The connecting piece can connect the plurality of inclined plates, and the first protrusion and the second protrusion can both connect to and protrude from the lower surface of the inclined plate. The first protrusion can abut against the lower inner ring condenser tube, and the second protrusion can abut against the lower outer ring condenser tube.

[0016] In the aforementioned two-phase cooling system, the inclined plate can be connected to a downward-extending guide vane at the lower part of the inclination.

[0017] The present invention also provides a flow guide suitable for configuration in a two-phase cooling system having a sealed tank and a condenser module having a plurality of condenser tubes arranged longitudinally at intervals above the interior of the sealed tank; the flow guide includes: at least one inclined plate; and at least one connecting portion connected to the inclined plate, the connecting portion being adapted to connect any condenser tube or the sealed tank, and the inclined plate being adapted to extend between two adjacent condenser tubes.

[0018] In the aforementioned guide, the inclined plate has a liquid outlet edge, which can be relatively close to the wall of the sealed tank.

[0019] In the aforementioned flow guide, the inclined plate has a liquid outlet edge, and the condenser tube located below has an end edge on the same side as the liquid outlet edge. The liquid outlet edge of the inclined plate can be adapted to protrude beyond the end edge.

[0020] In the aforementioned flow guide, there can be several inclined plates, and the joint can connect several inclined plates simultaneously.

[0021] In the aforementioned flow guide, the connecting part may have a connecting piece, a hook body, and an abutting piece. The connecting piece may connect to the plurality of inclined plates, the hook body may be connected to the connecting piece, and the abutting piece may be connected to a liquid outlet edge of one of the inclined plates. The hook body may be adapted to hook one of the condenser tubes, and the abutting piece may be adapted to block the inner or outer side of another condenser tube.

[0022] In the aforementioned flow guide, the connecting piece can be adapted to abut the inner side of the plurality of condenser tubes, and the abutting piece can be adapted to abut the outer side of one of the condenser tubes; or the connecting piece can be adapted to abut the outer side of the plurality of condenser tubes, and the abutting piece can be adapted to abut the inner side of one of the condenser tubes.

[0023] In the aforementioned flow guide, the connecting part may have at least one connecting piece and at least one first protrusion. The connecting piece may connect to the plurality of inclined plates, and the first protrusion may connect to and protrude from the lower surface of the inclined plate. The first protrusion may be adapted to abut against the condenser tube below.

[0024] In the aforementioned flow guide, the number of inclined plates can be a single one.

[0025] In the aforementioned flow guide, the condenser module's multiple condenser tubes can be divided into inner ring condenser tubes and outer ring condenser tubes, with the outer ring condenser tubes located on the outer periphery of the inner ring condenser tubes; the number of inclined plates can be multiple, and the joint portion can have at least one connecting piece, at least one first protrusion, and at least one second protrusion. The connecting piece can connect the multiple inclined plates, and the first and second protrusions can both connect to and protrude from the lower surface of the inclined plate. The first protrusion is adapted to abut against the lower inner ring condenser tube, and the second protrusion is adapted to abut against the lower outer ring condenser tube.

[0026] In the aforementioned flow guide, the inclined plate can be connected to a flow guide plate that extends downwards at the lower part of the inclination.

[0027] Accordingly, in the two-phase cooling system of the present invention, by setting the guide, the liquid coolant generated by the condensation of the upper condenser can be discharged to the side end of the lower condenser by the inclined plate, so that the upper surface of the lower condenser is not easily splashed by the liquid coolant, and thus it is not easy to form a water film, thereby ensuring that the condensation module can fully exert its good condensation efficiency. Simple Explanation of the Diagram

[0028] [Figure 1] is a three-dimensional exploded view of an embodiment of the two-phase cooling system of the present invention. [Figure 2] is a three-dimensional exploded view of a condensation module and several flow guides according to an embodiment of the present invention. [Figure 3] is a three-dimensional schematic diagram of a condenser module and several flow guides according to an embodiment of the present invention. [Figure 4] is a top view of a condensation module and several flow guides according to an embodiment of the present invention. [Figure 5] is a schematic diagram of the cross-sectional structure along section AA in Figure 4. [Figure 6] is an enlarged view of area B in Figure 5. [Figure 7] is a structural schematic diagram of another embodiment of the state in Figure 6. [Figure 8] is a perspective view of a flow guide according to another embodiment of the present invention. [Figure 9] is a three-dimensional exploded view of the condensation module and several flow guides according to another embodiment of the present invention. [Figure 10] is a three-dimensional schematic diagram of the flow guide shown in Figure 9 from another perspective. [Figure 11] is a partially enlarged cross-sectional schematic diagram of the condenser module and flow guide shown in Figure 9. [Figure 12] is a partially enlarged cross-sectional schematic diagram of the condenser module and the flow guide in another embodiment of the present invention. Implementation

[0029] To fully understand the purpose, features, and effects of this invention, the invention will be described in detail below with reference to the specific embodiments and accompanying drawings, as follows:

[0030] Please refer to Figure 1, which is a preferred embodiment of the two-phase cooling system of the present invention. The two-phase cooling system includes a sealed tank 1, a condensation module 2, and several flow guides 3A.

[0031] The sealed tank 1 has a tank body 11 and a cover 12. The tank body 11 can hold liquid coolant and provides a stable mounting for electronic computing components to be immersed in the liquid coolant. The cover 12 can close the opening of the tank body 11 to prevent coolant leakage. The present invention does not limit the type of the sealed tank 1, but aims to achieve the aforementioned functions, and is not limited to the type disclosed in the drawings.

[0032] The condensing module 2 has several condensing tubes 21 located above the interior of the sealed tank 1 and arranged longitudinally at intervals. In one embodiment of the present invention, the several condensing tubes 21 may be positioned within the tank 11 near the top by several fixing brackets 22 attached to the tank body 11, so that the several condensing tubes 21 are close to but do not touch the tank wall 111 of the tank body 11.

[0033] Please refer to Figures 2 and 3. In this embodiment, the plurality of condenser tubes 21 can be formed into rings, and the head ends and tail ends of the plurality of condenser tubes 21 are connected. The condensation module 2 has a circulating liquid inlet 23 and a circulating liquid outlet 24. The head ends of the plurality of condenser tubes 21 are connected to one of the circulating liquid inlet 23 and the circulating liquid outlet 24, and the tail ends of the plurality of condenser tubes 21 are connected to the other. The cross-sectional shape or size of the plurality of condenser tubes 21 may be the same or different. This invention is not limited to this, nor is it limited to the circular tube disclosed in the figures (please refer to Figure 5).

[0034] Please refer to Figures 2, 4 and 5. Each of the flow guides 3A has at least one inclined plate 31 and at least one connecting part 32. The connecting part 32 connects to the inclined plate 31 and is connected to any condenser 21 or the tank 11, so that the inclined plate 31 can extend between two adjacent condenser 21.

[0035] Accordingly, in the two-phase cooling system of this embodiment, the liquid coolant condensed by the upper condenser 21 can be discharged to the side of the lower condenser 21 by the inclined plate 31, without being poured onto the lower condenser 21 in large quantities. Since the upper half of the surface of the lower condenser 21 can be kept mostly or entirely free from continuous liquid coolant, it is not easy for a water film to form on the wall of the lower condenser 21. This significantly improves the problem of a significant decrease in the condensation efficiency of the overall condensation module 2 caused by the formation of a water film, allowing the condensation module 2 to fully utilize its good condensation efficiency.

[0036] The plurality of annular condenser tubes 21 can enclose an internal space. In this invention, the direction facing the internal space is defined as the inner side, and the direction away from the internal space is defined as the outer side. Referring to Figures 5 and 6, the inclined plate 31 has a liquid outlet edge 311, which can be located at the lowest position of the inclined plate 31, so that most of the liquid coolant collected in the inclined plate 31 can flow out of the inclined plate 31 through the liquid outlet edge 311. This invention does not limit the tilting direction of the inclined plate 31, that is, the liquid coolant can flow out to the inner or outer side of the plurality of condenser tubes 21.

[0037] It is worth mentioning that, since most of the gaseous coolant flows upward from the inside of the condenser tubes 21, it is preferable to allow the liquid coolant to be guided to the outside of the condenser tubes 21 to avoid affecting the efficiency of the gaseous coolant contacting the condenser tubes 21. That is, in one embodiment of the present invention, it is preferable to make the liquid outlet edge 311 of the inclined plate 31 closer to the tank wall 111 of the tank body 11 than the other side; in this way, even if the amount of liquid coolant guided to the outside is large enough to form a water curtain, it will not have a significant impact on the efficiency of the gaseous coolant contacting the condenser tubes 21.

[0038] Furthermore, the lower condenser tube 21 has an end edge on the same side as the liquid outlet edge 311. That is, when the inclined plate 31 guides the liquid coolant outward, this end edge is an outer end edge 211 of the lower condenser tube 21; when the inclined plate 31 guides the liquid coolant inward, this end edge is an inner end edge 212 of the lower condenser tube 21. In one embodiment of the present invention, the liquid outlet edge 311 of the inclined plate 31 can extend as far inward or outward as possible from the condenser tube 21 without affecting assembly, so as to reduce the range of the liquid coolant poured onto the upper half of the lower condenser tube 21; preferably, as shown in FIG. 7, the liquid outlet edge 311 of the inclined plate 31 can protrude beyond the outer end edge 211 of the lower condenser tube 21. In this way, the entire upper half of the lower condenser tube 21 is less susceptible to continuous condensation by liquid coolant. This not only prevents the formation of a water film on the tube wall of the lower condenser tube 21, but also allows the lower condenser tube 21 to maintain a larger area for efficient condensation of gaseous coolant, thus improving the condensation efficiency of the condenser module 2. In embodiments where the liquid coolant is guided inwards, it is preferable that the liquid outlet edge 311 of the inclined plate 31 protrudes beyond the inner edge 212 of the lower condenser tube 21.

[0039] On the other hand, referring to Figures 2, 4, and 5, the present invention does not limit the form of the flow guide 3A, which can be adjusted according to different requirements such as the number of condenser tubes 21, assembly, or condensation efficiency. For example, in the embodiment shown in Figure 2, the flow guide 3A can have several inclined plates 31, and the connecting part 32 can connect several inclined plates 31 simultaneously, so that several inclined plates 31 can be installed together between several condenser tubes 21, instead of installing them one by one, which can improve assembly efficiency.

[0040] In the embodiment shown in Figure 5, an inclined plate 31 is disposed between any two adjacent condenser tubes 21, which can minimize the negative impact of the water film. However, the present invention is not limited to this configuration. In other possible embodiments, the inclined plates 31 can also be disposed at intervals, for example, the inclined plates 31 can be disposed below the odd or even number of condenser tubes 21 from the top; or an inclined plate 31 can be disposed between any two adjacent condenser tubes 21 in the lower half, while no inclined plates 31 are disposed between the condenser tubes 21 in the upper half; or other arbitrary configurations.

[0041] Referring again to Figure 2, the shape of the flow guide 3A can vary depending on the conditions of the desired installation location. For example, in locations corresponding to the plurality of fixing brackets 22, the inclined plate 31 can be formed in a shorter form; while in locations without the plurality of fixing brackets 22, the inclined plate 31 can be formed in a longer form. In addition, the inclined plate 31 can also be fitted with a hole 312 at the location where interference may occur, to suit the environment of the installation location.

[0042] Furthermore, please refer to Figures 2 and 5. The present invention does not limit the form of the connecting part 32. In one embodiment of the present invention, the connecting part 32 may have a connecting piece 321, a hook 322 and an abutting piece 323. The connecting piece 321 connects the plurality of inclined plates 31, the hook 322 is connected to the connecting piece 321, and the abutting piece 323 may be connected to the liquid outlet edge 311 of one of the inclined plates 31. In this way, when installing the flow guide 3A, the flow guide 3A can be tilted first so that the abutment piece 323 and the several tilting plates 31 can be aligned and inserted between the specified several condenser tubes 21. Then, the flow guide 3A is straightened and the hook body 322 hooks one of the condenser tubes 21. At this time, the abutment piece 323 can block the side end of the other condenser tube 21, so that the hook body 322 and the abutment piece 323 together maintain the overall flow guide 3A stably hanging on the several condenser tubes 21. In this configuration, one of the abutment piece 323 and the connecting piece 321 can be located inside the plurality of condenser tubes 21, and the other can be located outside the plurality of condenser tubes 21. For example, after the flow guide 3A is assembled, the connecting piece 321 can abut against the inside of the plurality of condenser tubes 21, while the abutment piece 323 abuts against the outside of one of the condenser tubes 21, or vice versa, which can provide a more stable assembly effect.

[0043] Please refer to Figure 8, which illustrates another embodiment of the flow guide 3B of the present invention. In this embodiment, the flow guide 3B may have only a single inclined plate 31, allowing the flow guide 3B to be selectively positioned between any two adjacent condenser tubes 21 as needed. This increases the design freedom in configuring the multiple flow guides 3B, facilitating the configuration of the required number of flow guides 3B according to different needs. The installation positions can also be added, reduced, or changed at any time, and individual disassembly and replacement can reduce maintenance costs. Furthermore, the connecting portion 32 in this embodiment may be, for example, several sets of protrusions connected to the inclined plate 31, with each set of protrusions clamping the condenser tube 21, or connected to each set of protrusions through screws, pins, or hooks. The present invention is not limited to any particular form disclosed in the figures, as long as the connecting portion 32 does not interfere with the inclined plate 31 of another flow guide 3B mounted above it.

[0044] Please refer to Figures 9 to 11, which disclose a flow guide 3C according to another embodiment of the present invention. In this embodiment, the inclined plate 31 of the flow guide 3C can be connected to a downwardly extending flow guide 313 at its lower inclined position. The flow guide 313 can extend downward along the Z direction; or it can extend at an angle, forming an acute or obtuse angle with the lower surface of the inclined plate 31, neither of which is limited by the present invention. Furthermore, for example but not limited, in one embodiment of the present invention, the flow guide 313 can be a portion formed by bending the liquid outlet edge 311 of the inclined plate 31 downward; or, the flow guide 313 can be connected to the edge of the inclined plate 31 by welding or fusion techniques.

[0045] By setting the guide vane 313, the liquid coolant can flow along the slope of the inclined plate 31 to the guide vane 313, and leave the inclined plate 31 from the end edge of the guide vane 313 (the liquid outlet end edge 311) and drip down reliably; without some liquid coolant flowing back along the lower surface of the inclined plate 31 and dripping onto the wall of the lower condenser tube 21 to form a water film, the effect of not easily forming a water film on the wall of the lower condenser tube 21 can be further improved.

[0046] It is worth mentioning that the structure of the guide plate 313 can also be applied to the previously disclosed embodiments, so the embodiments are not limited to the forms shown in the figures.

[0047] On the other hand, in one embodiment of the present invention, the condensing module 2 includes a plurality of condensing tubes 21 arranged in an inner and outer spaced apart; taking a double-ring condensing tube 21 as an example, and referred to as inner ring condensing tube 21a and outer ring condensing tube 21b, the outer ring condensing tube 21b is located on the outer periphery of the inner ring condensing tube 21a.

[0048] The flow guide 3C may have several inclined plates 31 and at least one connecting portion 32. The connecting portion 32 may have at least one connecting piece 321, at least one first protrusion 324, and at least one second protrusion 325. The connecting piece 321 connects the several inclined plates 31. The first protrusion 324 and the second protrusion 325 are both connected to and protrude from the lower surface of the inclined plate 31, and the first protrusion 324 is farther away from the liquid outlet edge 311 of the inclined plate 31 than the second protrusion 325. In this way, when installing the flow guide 3C, the several inclined plates 31 can be aligned and inserted between several longitudinally specified condenser tubes 21, with the first protrusion 324 abutting against the lower inner ring condenser tube 21a, and the second protrusion 325 abutting against the lower outer ring condenser tube 21b.

[0049] Accordingly, in this embodiment, the first protrusion 324 and the second protrusion 325 enable the flow guide 3C to be stably assembled to the plurality of inner ring condenser tubes 21a and the plurality of outer ring condenser tubes 21b, and enable each inclined plate 31 to maintain a predetermined distance from the inner ring condenser tubes 21a and the outer ring condenser tubes 21b below, making it less likely for liquid coolant to flow to the tube wall of the condenser tubes 21, thereby helping to reduce the chance of water film forming in the condenser tubes 21.

[0050] Although Figures 10 and 11 show two sets of first protrusions 324 and second protrusions 325 connected to the lower surface of each inclined plate 31, and the sets of first protrusions 324 and second protrusions 325 are opposite each other along the Y direction, the present invention is not limited to this configuration. For example, in other possible embodiments, at least one set of first protrusions 324 and second protrusions 325 may be provided on the lower surface of several inclined plates 31, and the sets of first protrusions 324 and second protrusions 325 do not necessarily have to be opposite each other along the Y direction; or, since the connecting piece 321 can help maintain the spacing between the several inclined plates 31, the present invention may also choose to provide a first protrusion 324 on the lower surface of one inclined plate 31 and a second protrusion 325 on the lower surface of another inclined plate 31, which can also achieve the aforementioned effect.

[0051] Please refer to Figures 9 and 12, which illustrate another embodiment of the flow guide 3D of the present invention. In this embodiment, the flow guide 3D can be configured to fit the shape of the condenser module 2, with the inclined plate 31 arranged in a shape that extends a shorter distance from high to low. The connecting portion 32 of the flow guide 3D can have at least one connecting piece 321 and at least one first protrusion 324. The connecting piece 321 connects the plurality of inclined plates 31, and the first protrusion 324 connects to and protrudes from the lower surface of the inclined plate 31. In this way, when installing the flow guide 3D, the plurality of inclined plates 31 can be aligned and inserted between a plurality of longitudinally designated inner ring condenser tubes 21a, with the first protrusion 324 abutting against the lower inner ring condenser tube 21a.

[0052] It is worth mentioning that the flow guide 3D in this embodiment can also be installed on the condenser module 2, which has only a single-turn condenser tube 21 as shown in Figure 2.

[0053] The present invention has been disclosed above with reference to preferred embodiments. However, those skilled in the art should understand that these embodiments are merely illustrative of the invention and should not be construed as limiting its scope. It should be noted that all variations and substitutions equivalent to these embodiments should be considered within the scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

[0054] 1: Sealed tank 11: Tank 111: Tank wall 12: Capping 2: Condensation Module 21: Condenser 21a: Inner condenser coil 21b: Outer ring condenser tube 211: Outer edge 212: Inner edge 22: Fixture 23: Circulating fluid inlet section 24: Circulating fluid output section 3A-3D: Flow deflector 31: Inclined plate 311: Liquid outlet edge 312: Hole 313: Flow deflector 32: Joint 321: Connecting piece 322: Hook body 323: Connecting Piece 324: First convex part 325: Second protrusion

Claims

1. A two-phase cooling system, comprising: a sealed tank; a condenser module having a plurality of condenser tubes located above the interior of the sealed tank and arranged longitudinally at intervals; and a plurality of flow guides, each flow guide having at least one inclined plate and at least one connecting portion, the connecting portion connecting to the inclined plate, the connecting portion connecting to any condenser tube or the sealed tank, the inclined plate extending between two adjacent condenser tubes; wherein, The inclined plate has a liquid outlet edge that is close to the wall of the sealed tank.

2. The two-phase cooling system as described in claim 1, wherein, The inclined plate has a liquid outlet edge, and the condenser tube located below has an end edge on the same side as the liquid outlet edge, with the liquid outlet edge of the inclined plate protruding beyond the end edge.

3. The two-phase cooling system as described in claim 1, wherein, The flow guide has several inclined plates, and the joint connects all of these inclined plates.

4. The two-phase cooling system as described in claim 3, wherein, The joint has a connecting piece, a hook and an abutting piece. The connecting piece connects to the plurality of inclined plates, the hook is connected to the connecting piece, and the abutting piece is connected to a liquid outlet edge of one of the inclined plates. The hook hooks onto one of the condenser tubes, and the abutting piece blocks the inside or outside of another condenser tube.

5. The two-phase cooling system as described in claim 4, wherein, The connecting piece abuts against the inner side of the plurality of condenser tubes, and the abutting piece abuts against the outer side of one of the condenser tubes; or the connecting piece abuts against the outer side of the plurality of condenser tubes, and the abutting piece abuts against the inner side of one of the condenser tubes.

6. The two-phase cooling system as described in claim 3, wherein, The joint has at least one connecting piece and at least one first protrusion. The connecting piece connects to the plurality of inclined plates, and the first protrusion connects to and protrudes from the lower surface of the inclined plate, and the first protrusion abuts against the condenser tube below.

7. The two-phase cooling system as described in claim 1, wherein, An inclined plate is provided between any two of these condenser tubes.

8. The two-phase cooling system as described in claim 1, wherein, The flow guide has only a single inclined plate.

9. The two-phase cooling system as described in claim 1, wherein, The plurality of condenser tubes are divided into inner ring condenser tubes and outer ring condenser tubes, with the outer ring condenser tubes located on the outer periphery of the inner ring condenser tubes; there are several inclined plates, and the joint has at least one connecting piece, at least one first protrusion and at least one second protrusion. The connecting piece connects the plurality of inclined plates, and the first protrusion and the second protrusion are both connected to and protrude from the lower surface of the inclined plate. The first protrusion abuts against the lower inner ring condenser tube, and the second protrusion abuts against the lower outer ring condenser tube.

10. A two-phase cooling system as described in any one of claims 1 to 9, wherein, The inclined plate connects to a guide vane that extends downwards at the lower part of the inclination.

11. A flow guide suitable for configuration in a two-phase cooling system having a sealed tank and a condenser module having a plurality of condenser tubes arranged longitudinally at intervals above the interior of the sealed tank; the flow guide comprising: at least one inclined plate; and at least one connecting portion connecting the inclined plate, the connecting portion being adapted to engage any condenser tube or the sealed tank, the inclined plate being adapted to extend between two adjacent condenser tubes; wherein, The inclined plate has a liquid outlet edge that is relatively close to the wall of the sealed tank.

12. The flow guide as described in claim 11, wherein, The inclined plate has a liquid outlet edge, and the condenser tube located below has an end edge on the same side as the liquid outlet edge. The liquid outlet edge of the inclined plate is adapted to protrude beyond the end edge.

13. The flow guide as described in claim 11, wherein, There are several inclined plates, and the joint connects all of them.

14. The flow guide as described in claim 13, wherein, The joint has a connecting piece, a hook and an abutting piece. The connecting piece connects the plurality of inclined plates, the hook is connected to the connecting piece, and the abutting piece is connected to a liquid outlet edge of one of the inclined plates. The hook is adapted to hook one of the condenser tubes, and the abutting piece is adapted to block the inside or outside of another condenser tube.

15. The flow guide as described in claim 14, wherein, The connecting piece is adapted to abut against the inner side of the plurality of condenser tubes, and the abutting piece is adapted to abut against the outer side of one of the condenser tubes; or the connecting piece is adapted to abut against the outer side of the plurality of condenser tubes, and the abutting piece is adapted to abut against the inner side of one of the condenser tubes.

16. The flow guide as described in claim 13, wherein, The joint has at least one connecting piece and at least one first protrusion. The connecting piece connects to the plurality of inclined plates, and the first protrusion connects to and protrudes from the lower surface of the inclined plate. The first protrusion is adapted to abut against the condenser tube below.

17. The flow guide as described in claim 11, wherein, The number of inclined plates is a single one.

18. The flow guide as described in claim 11, wherein, The condenser module has several condenser tubes, which are divided into inner and outer ring condenser tubes. The outer ring condenser tube is located on the outer periphery of the inner ring condenser tube. There are several inclined plates. The joint has at least one connecting piece, at least one first protrusion and at least one second protrusion. The connecting piece connects the several inclined plates. The first protrusion and the second protrusion are both connected to and protrude from the lower surface of the inclined plate. The first protrusion is adapted to abut against the lower inner ring condenser tube, and the second protrusion is adapted to abut against the lower outer ring condenser tube.

19. A flow guide as described in any one of claims 11 to 18, wherein, The inclined plate connects to a guide vane that extends downwards at the lower part of the inclination.

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