Heat pipe collector

Abstract

The utility model relates to the technical field of solar heat utilization, in particular to a heat pipe heat collector which comprises a shell and heat pipes. The inner section of the shell is filled with a first working medium, and a mounting hole is formed in the shell. The heat pipe penetrates through the mounting hole, and the inner section is filled with a second working medium. Wherein the section, located outside the shell, of the heat pipe is divided into an evaporation section, the section, located in the shell, of the heat pipe is divided into a condensation section, and the second working medium is configured to receive and gather sunlight in the evaporation section to absorb heat and change into a gas state, flow to the condensation section to release heat and change into a liquid state and flow back to the evaporation section, so that solar energy is converted into heat energy to be transmitted to the first working medium; therefore, power generation equipment is driven. And a plurality of mounting holes are formed at intervals along rows and / or columns so as to mount a plurality of heat pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of solar thermal utilization, in particular to a heat pipe collector. Background Art

[0002] Concentrated Solar Power (CSP) technology is a technology that uses sunlight to generate heat energy and then generates electricity through a thermal cycle. This technology has the characteristics of clean and renewable energy, and is of great significance for reducing greenhouse gas emissions and responding to climate change. In recent years, with the continuous growth of global energy demand and increasingly severe environmental problems, CSP technology has received extensive attention and research.

[0003] The concentrated solar power generation system mainly includes a concentrator, a receiver and a power generation system. Its working principle is to concentrate sunlight onto the receiver through the concentrator. The receiver absorbs the energy of the sunlight and converts it into heat, and then uses thermal equipment to generate electricity.

[0004] In the invention patent publication document with publication number CN102062016A, a high-temperature sodium heat pipe collector for a solar dish-type thermal power generation system is proposed. The collector housing, the capillary core and the Stirling engine form a closed vacuum chamber and fill it with liquid sodium. The sunlight irradiates the liquid sodium through the pupil to cause the liquid sodium to undergo a phase change cycle and transfer heat to the Stirling engine. However, the engine is formed as a part of the sodium heat pipe collector, which not only limits the design of the entire collector to the engine, but also directly contacts and heats the engine with sodium vapor. When the supply of sunlight fluctuates, it is easy to cause unstable power generation and power supply. Therefore, how to improve the redundancy capacity of the collector has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] In view of the above problems, the utility model provides a heat pipe collector, which heats the working fluid through multiple heat pipes, and then uses the working fluid to generate electricity. This not only improves the heat transfer efficiency, but also has a certain heat redundancy to maintain the operation of the power generation equipment when the solar energy supply fluctuates.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a heat pipe collector, comprising: a shell, the interior of which is filled with a first working medium, and a mounting hole is formed on the above-mentioned shell; a heat pipe, which is installed through the above-mentioned mounting hole, and the interior of the above-mentioned heat pipe is filled with a second working medium; the part of the above-mentioned heat pipe located outside the above-mentioned shell is an evaporation section, and the part located inside the above-mentioned shell is a condensation section; the above-mentioned second working medium is configured to receive concentrated sunlight in the above-mentioned evaporation section, absorb heat and change into a gas state, flow to the above-mentioned condensation section to release heat and change into a liquid state, and flow back to the above-mentioned evaporation section, so as to circulate and convert solar energy into heat energy and transfer it to the above-mentioned first working medium, so as to be used to drive the power generation equipment; the above-mentioned mounting holes are arranged in plurality along rows and / or columns at intervals to install a plurality of heat pipes.

[0007] In an exemplary embodiment, the heat pipe includes: an outer shell; a capillary wick arranged on the inner wall of the outer shell and constructed as a hollow tubular porous capillary structure to return the liquid second working fluid at the condensation section to the evaporation section through the action of capillary force; and a working fluid cavity formed in the hollow part of the capillary wick and suitable for the passage of the gaseous second working fluid.

[0008] In an exemplary embodiment, the second working fluid is liquid sodium.

[0009] In an exemplary embodiment, a flange is provided at the mounting hole, and the flange includes: a cylinder, which is arranged through the mounting hole and is suitable for installing the heat pipe; a flange plate, which is fixedly connected to the cylinder and connected to the inner wall of the shell by bolts.

[0010] In an exemplary embodiment, an end cover ring is further included, which is configured to be sleeved on the heat pipe and bolted to the outer wall of the shell after the heat pipe is installed in the flange.

[0011] In an exemplary embodiment, the inner diameter of the end cover ring and the inner diameter of the flange are both d1, the inner diameter of the cylinder is d2, and d2>d1; a boss is arranged around the heat pipe, and the outer diameter of the boss is d3, d3=d2, so that after the heat pipe is installed, the two end surfaces of the boss respectively abut against the flange and the end cover ring.

[0012] In an exemplary embodiment, a first sealing ring is provided between the flange and the housing.

[0013] In an exemplary embodiment, a second sealing ring is provided between the end cover ring and the cylinder.

[0014] In an exemplary embodiment, it also includes: a plurality of connecting rods, which are distributed at intervals along the circumferential direction, and the connecting rods extend from the flange and extend along the length direction of the heat pipe; a supporting part, which is connected to the connecting rods and is configured to circumferentially support the heat pipe.

[0015] In an exemplary embodiment, it further includes heat conducting sheets arranged at intervals along the length direction on the outer surface of the condensing section to increase the contact area between the condensing section and the first working medium.

[0016] The heat pipe collector provided by the utility model is characterized in that sunlight is concentrated on the evaporation section of the heat pipe after passing through the concentrator, so that the temperature of the evaporation section rises. At this time, the second working fluid absorbs heat to produce a phase change, and after becoming steam, it flows to the condensation section under the action of the pressure difference. The condensation section is in the first working fluid with a lower temperature. After the steam reaches the condensation section, it begins to release heat. The first working fluid absorbs this part of the heat and uses it to drive the power generation equipment. At the same time, the steam in the heat pipe changes into a liquid state and flows back to the evaporation section along the inner wall of the heat pipe to perform the next heat absorption phase change, thereby forming a cycle, continuously converting solar energy into thermal energy and transferring it to the first working fluid, and then the first working fluid drives the power generation equipment. Multiple heat pipes facilitate the conversion of more solar energy, and multiple heat pipes simultaneously exchange heat with the first working fluid, which also improves the heat exchange efficiency. When the weather conditions are poor and the light intensity and duration are unstable, the heat pipe can perform a certain degree of self-circulation adjustment by relying on the waste heat; even if the heat pipe efficiency is reduced, the first working fluid with heat can still maintain the operation of the power generation equipment, thereby effectively improving the redundancy capacity of the heat pipe collector and enhancing the working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above contents and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0018] Figure 1 This is the overall structural diagram of the heat pipe collector provided by the utility model;

[0019] Figure 2 yes Figure 1 A schematic cross-sectional view of a heat pipe collector of an exemplary embodiment shown;

[0020] Figure 3 yes Figure 1 A cross-sectional structural diagram of a heat pipe in the exemplary embodiment shown;

[0021] Figure 4 yes Figure 1 A schematic diagram of another cross-section of the heat pipe collector of the exemplary embodiment shown;

[0022] Figure 5 yes Figure 3 A partial enlarged view of the middle A;

[0023] Figure 6 It is a partially cutaway stereoscopic view of the heat pipe collector provided by the utility model.

[0024] In the above drawings, the meanings of the reference numerals are as follows:

[0025] 1. Shell;

[0026] 11. Mounting holes;

[0027] 12. Input port;

[0028] 13. Output port;

[0029] 2. Heat pipe;

[0030] 21. Evaporation section;

[0031] 22. Condensation section;

[0032] 23. Shell;

[0033] 24. Capillary wick;

[0034] 25. Working fluid chamber;

[0035] 26. Boss;

[0036] 3. Thermal conductive sheet;

[0037] 4. Flange;

[0038] 41. Cylinder;

[0039] 42. Flange;

[0040] 5. End cover ring;

[0041] 6. The first sealing ring;

[0042] 7. Second sealing ring;

[0043] 8. Connecting rod;

[0044] 9. Support part;

[0045] 91. Ribs. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. The terms used herein are only for describing specific embodiments and are not intended to limit the utility model.

[0047] The terms "include", "comprising", etc. used herein indicate the presence of the features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components. All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0048] In this document, unless otherwise specified, directional terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device, element or component referred to must have a specific orientation, be constructed or operate in a specific orientation. It should be understood that when the absolute position of the described object changes, the relative positional relationship they represent may also change accordingly. Therefore, these directional terms cannot be understood as limiting the present invention.

[0049] When using expressions such as "at least one of A, B, and C, etc.", it should generally be interpreted as the meaning of the expression generally understood by those skilled in the art. For example, "a system having at least one of A, B, and C" should include but not be limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc. When using expressions such as "at least one of A, B, or C, etc.", it should generally be interpreted as the meaning of the expression generally understood by those skilled in the art. For example, "a system having at least one of A, B, or C" should include but not be limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.

[0050] Figure 1 This is the overall structural diagram of the heat pipe collector provided by the utility model. Figure 2 yes Figure 1 A schematic cross-sectional view of a heat pipe collector of an exemplary embodiment is shown.

[0051] The exemplary embodiment of the present utility model provides a heat pipe collector, such as Figure 1-Figure 2As shown, it includes a shell 1 and a heat pipe 2. The shell 1 is filled with a first working fluid, and a mounting hole 11 is formed on the shell 1. The heat pipe 2 is installed through the mounting hole 11, and is filled with a second working fluid. Among them, the part of the heat pipe 2 located outside the shell 1 is the evaporation section 21, and the part located inside the shell 2 is the condensation section 22. The second working fluid is configured to receive the concentrated sunlight in the evaporation section 21, absorb heat and change into a gas state, flow to the condensation section 22, release heat and change into a liquid state, and flow back to the evaporation section 21, so as to circulate and convert solar energy into heat energy and transfer it to the first working fluid, so as to drive the power generation equipment. A plurality of mounting holes 11 are arranged at intervals along rows and / or columns to install a plurality of heat pipes 2.

[0052] In such an embodiment, the housing 1 is a cubic structure, the heat pipe 2 is configured as a roughly cylindrical body, and the mounting hole 11 is correspondingly configured as a circular through hole so that the heat pipe 2 can be installed through the housing 1. After passing through the concentrator, the sunlight converges on the evaporation section 21 of the heat pipe 2, causing the temperature of the evaporation section 21 to rise. At this time, in the heat pipe 2, the second working medium located at the evaporation section 21 absorbs heat and produces a phase change, and after becoming steam, it flows to the condensation section 22 under the action of the pressure difference. The condensation section 22 is in the first working medium with a lower temperature. After the steam reaches the condensation section 22, it begins to release heat. The first working medium absorbs this part of the heat and is used to drive the power generation equipment. At the same time, the steam in the heat pipe 2 changes into a liquid state and flows back to the evaporation section 21 along the inner wall of the heat pipe 2 to perform the next heat absorption phase change, thereby forming a cycle, continuously converting solar energy into heat energy and transferring it to the first working medium, and then the first working medium drives the power generation equipment. At the same time, multiple mounting holes 11 are arranged at intervals along rows and / or columns, and multiple heat pipes 2 can be installed at the same time for heat transfer. In an ideal state, multiple heat pipes 2 have a better heat transfer effect. When weather conditions are poor and light intensity and duration are unstable, the heat pipe 2 can perform a certain degree of self-circulation regulation by relying on waste heat; when the heat output of the heat pipe 2 is insufficient, the first working fluid with heat can still maintain the operation of the power generation equipment, thereby effectively improving the redundancy of the heat pipe collector and enhancing working stability. The heat pipe collector of the disclosed embodiment is suitable for a concentrated solar thermal power generation system. First, a concentrator (such as a linear concentrator, a dish concentrator, or a tower concentrator) concentrates sunlight to the heat pipe collector of this embodiment. After the first working fluid in the heat pipe collector meets the working requirements, it is output to the power generation system / equipment for power generation, such as a steam turbine, a Stirling engine, etc., to achieve stable and efficient solar thermal power generation.

[0053] More specifically, the shell 1 is made of insulating material, or the surface of the shell 1 is coated with an inorganic water-based single-component high-temperature resistant heat-insulating coating to reduce heat loss. The shell 1 is provided with an input port 12 and an output port 13. The first working fluid enters the shell 1 through the input port 12, and after receiving the heat released by the condensing section 22, it is output through the output port 13 for storage or driving the power generation equipment.

[0054] Figure 3 yes Figure 1 A cross-sectional view of a heat pipe in an exemplary embodiment is shown.

[0055] In an exemplary embodiment, Figure 3 As shown, the heat pipe 2 includes a shell 23, a capillary wick 24 and a working medium cavity 25. The capillary wick 24 is arranged on the inner wall of the shell 23 and is configured as a hollow tubular porous capillary structure to return the liquid second working medium at the condensation section 22 to the evaporation section 21 through the action of capillary force. The working medium cavity 25 is formed in the hollow part of the capillary wick 24 and is suitable for the gaseous second working medium to pass through.

[0056] According to an embodiment of the present disclosure, the first working fluid is compressed air, and the second working fluid is liquid sodium.

[0057] In such an embodiment, liquid sodium is initially located at the evaporation section 21, and after absorbing heat and changing into sodium vapor, it flows along the working fluid chamber 25 to the condensation section 22. After exchanging heat with the compressed air, it changes into liquid sodium, and under the action of the capillary wick 24, it flows back to the evaporation section 21 along the inner wall of the housing 23 to undergo the next endothermic phase change.

[0058] Further, the ratio of the length to the diameter of the heat pipe 2 is not less than 4, for example, the length can be 160 mm and the diameter can be 20 mm, so as to obtain a better heat transfer effect. The material of the shell 23 includes but is not limited to nickel-based alloys, preferably resistant to high temperature and corrosion. The capillary core 24 is made of stainless steel 310S wire, with a thickness of 1 mm and a mesh number of 400 meshes, but is not limited thereto. In some other embodiments, the wire thickness of the capillary core 24 is not greater than 8 mm, and the mesh number is not greater than 400 meshes.

[0059] Figure 4 yes Figure 1 A schematic diagram of another cross section of the heat pipe collector of the exemplary embodiment shown, Figure 5 yes Figure 3 A partial enlarged view of the middle A. Figure 6 It is a partially cutaway stereoscopic view of the heat pipe collector provided by the utility model.

[0060] In an exemplary embodiment, Figure 4-Figure 5 As shown, a flange 4 is provided at the mounting hole 11, and the flange 4 includes a barrel 41 and a flange 42. The barrel 41 is arranged through the mounting hole 11 and is suitable for mounting the heat pipe 2. The flange 42 is fixedly connected to the barrel 41 and is connected to the inner wall of the housing 1 by bolts.

[0061] In such an embodiment, the cylinder 41 is constructed as a hollow cylinder, passed through the mounting hole 11, and connected to the flange 42. The heat pipe 2 is installed in the hollow part of the cylinder 41. The entire flange 4 is fixedly connected to the shell 1 by bolts, thereby fixing the heat pipe 2.

[0062] Specifically, the cylinder 41 and the flange 42 can be integrally formed, or can be separately manufactured and then welded together. They are both made of heat-insulating materials to reduce heat loss.

[0063] According to an embodiment of the present disclosure, the heat pipe collector further comprises an end cover ring 5 which is configured to be sleeved on the heat pipe 2 and bolted to the outer wall of the shell 1 after the heat pipe 2 is installed in the flange 4 .

[0064] In such an embodiment, the end cover ring 5 is used to sleeve the heat pipe 2 and is fixedly connected to the housing 1 to enhance the fixing effect. Accordingly, the end cover ring 5 is also made of heat insulating material to reduce heat loss.

[0065] Furthermore, the inner diameter of the end cover ring 5 and the inner diameter of the flange 42 are both d1, the inner diameter of the cylinder 41 is d2 and d2>d1. A boss 26 is arranged around the heat pipe 2, and the outer diameter of the boss 26 is d3 and d3=d2, so that after the heat pipe is installed, the two end surfaces of the boss 26 abut against the flange 42 and the end cover ring 5 respectively.

[0066] In such an embodiment, the boss 26 is fixed to the outer wall of the heat pipe 2, for example, by welding, and the two end surfaces of the boss 26 are respectively abutted against the flange 42 and the end cover ring 5, thereby effectively preventing the heat pipe 2 from moving in the axial direction.

[0067] In some other embodiments, a first sealing ring 6 is arranged between the flange 42 and the shell 1. The shape of the first sealing ring 6 is substantially the same as that of the flange 42, and is preferably a circular sealing ring and an annular flange to prevent the first working fluid in the shell 1 from leaking from the gap between the flange 42 and the shell 1, and from the gap between the cylinder 41 and the shell 1, causing losses.

[0068] In some other embodiments, a second sealing ring 7 is provided between the end cover ring 5 and the cylinder 41 to prevent gas outside the shell 1 from entering the shell 1 through the gap between the end cover ring 5 and the cylinder 41 and the gap between the heat pipe 2 and the cylinder 41 .

[0069] Specifically, the second sealing ring 7 is also a circular sealing ring, and its cross section is configured to be U-shaped, wherein the recessed portion is used to accommodate the cylinder 41. The upper protrusion of the U-shaped cross section is sandwiched between the end cover ring 5 and the cylinder 41, and the lower protrusion of the U-shaped cross section is sandwiched between the cylinder 41 and the heat pipe 2, and the end surface of the lower protrusion abuts against the boss 26.

[0070] In some other embodiments, a third sealing ring is further included and is disposed between the boss 26 and the flange 42 .

[0071] It should be noted that the boss 26 should also be made of heat-insulating material to prevent the first sealing ring 6 , the second sealing ring 7 and the third sealing ring from being damaged by high temperature during the heat transfer process.

[0072] In an exemplary embodiment, Figure 6 As shown, the heat pipe collector further includes a plurality of connecting rods 8 and a supporting portion 9. The plurality of connecting rods 8 are spaced apart in the circumferential direction, and the connecting rods 8 extend from the flange 42 and extend along the length direction of the heat pipe 2. The supporting portion 9 is connected to the connecting rods 8 and is configured to support the heat pipe 2 in an annular direction.

[0073] In such an embodiment, the connecting rod 8 and the support part 9 are also made of heat-insulating material, and the number of the connecting rods 8 is preferably 6. The support part 9 is constructed as a cylindrical component substantially the same as the cylinder 41. In order to further enhance the supporting and fixing effect, the support part 9 is constructed to have two sections with different outer diameters, the large diameter section is connected to the connecting rod 8, the small diameter section is formed on the end surface of the large diameter section, and a plurality of ribs 91 evenly spaced along the circumferential direction are arranged between the large diameter section and the small diameter section.

[0074] In an exemplary embodiment, Figure 1-Figure 2 As shown, the heat pipe collector further includes heat conducting sheets 3 which are arranged at intervals along the length direction on the outer surface of the condensing section 22 to increase the contact area between the condensing section 22 and the first working medium.

[0075] In such an embodiment, the heat conducting sheet 3 is preferably made of copper, which has a high thermal conductivity, and improves the heat exchange efficiency between the condensation section 22 and the first working medium by increasing the contact area.

[0076] In some other embodiments, the heat conductive sheet 3 can also be constructed as a spiral fin, spirally wrapped around the outer surface of the condensation section 22. This not only increases the heat exchange area, but also guides the first working fluid to flow along a roughly spiral trajectory, further improving the heat exchange effect.

[0077] More specifically, the heat conducting sheet 3 is connected to the heat pipe 2 by welding, which not only has high reliability, but also makes the thermal contact between the heat conducting sheet 3 and the heat pipe 2 better and the heat transfer efficiency high. The specific welding method includes but is not limited to silver welding, brazing or arc welding.

[0078] In some other embodiments, the heat conducting sheet 3 may be connected to the heat pipe 2 by fastening with fasteners, gluing, casting, etc., and is not limited to welding connection, as long as the connection part is reliable and the thermal contact is good.

[0079] The installation process of the heat pipe collector provided by the utility model is as follows: first, the first sealing ring 6 and the third sealing ring are sleeved on the flange 4, and then the flange 4 is inserted into the mounting hole 11, and the flange 4 is fixedly connected to the shell 1 with bolts. The heat pipe 3 is inserted into the cylinder 41 until the boss 26 abuts against the third sealing ring, and then the second sealing ring 7 and the end cover ring 5 are sleeved on the heat pipe 2 in sequence, and finally the end cover ring 5 is fixed to the shell 1 with bolts to complete the installation.

[0080] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0081] The embodiments of the present invention are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present invention is defined by the attached claims and their equivalents. Without departing from the scope of the present invention, a person skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present invention.

Claims

1. A heat pipe collector, characterized in that: include: A shell (1) filled with a first working medium, and a mounting hole (11) is formed on the shell (1); as well as A heat pipe (2) is installed through the installation hole (11), and a second working medium is filled inside the heat pipe (2); the heat pipe (2) comprises an evaporation section (21) located outside the shell (1), and a condensation section (22) located inside the shell (1); the second working medium is configured to absorb heat and change into a gaseous state when receiving concentrated sunlight at the evaporation section (21), flow to the condensation section (22) to release heat and change into a liquid state, and flow back to the evaporation section (21), thereby converting solar energy into heat energy in a cycle and transferring it to the first working medium, thereby driving power generation equipment; a plurality of the installation holes (11) are arranged at intervals along rows and / or columns to install a plurality of heat pipes (2).

2. The heat pipe collector according to claim 1, characterized in that: The heat pipe (2) comprises: Shell (23); A capillary wick (24) is arranged on the inner wall of the outer shell (23) and is configured as a hollow tubular porous capillary structure so as to return the liquid second working medium at the condensation section (22) to the evaporation section (21) through the action of capillary force; A working medium chamber (25) is formed in the hollow portion of the capillary wick (24), and is suitable for transporting the second working medium in a gaseous state from the evaporation section (21) to the condensation section (22).

3. The heat pipe collector according to claim 2, characterized in that: The second working fluid is liquid sodium.

4. The heat pipe collector according to claim 1, characterized in that: A flange (4) is provided at the mounting hole (11), and the flange (4) comprises: A cylinder (41) is arranged to penetrate the mounting hole (11) and is suitable for mounting the heat pipe (2); The flange (42) is fixedly connected to the cylinder (41) and is connected to the inner wall of the shell (1) via bolts.

5. The heat pipe collector according to claim 4, characterized in that: It also comprises an end cover ring (5) which is configured to be sleeved on the heat pipe (2) and bolted to the outer wall of the shell (1) after the heat pipe (2) is installed in the flange (4).

6. The heat pipe collector according to claim 5, characterized in that: The inner diameter of the end cover ring (5) and the inner diameter of the flange (42) are both d1, the inner diameter of the cylinder (41) is d2, and d2>d1; A boss (26) is provided around the heat pipe (2), and the outer diameter of the boss (26) is d3, where d3=d2, so that after the heat pipe (2) is installed, the two end surfaces of the boss (26) abut against the flange (42) and the end cover ring (5) respectively.

7. The heat pipe collector according to claim 4, characterized in that: A first sealing ring (6) is provided between the flange (42) and the housing (1).

8. The heat pipe collector according to claim 5, characterized in that: A second sealing ring (7) is provided between the end cover ring (5) and the cylinder body (41).

9. The heat pipe collector according to any one of claims 4 to 8, characterized in that: Also includes: A plurality of connecting rods (8) are distributed at intervals along the circumferential direction, the connecting rods (8) extending from the flange (42) and extending along the length direction of the heat pipe (2); The support portion (9) is connected to the connecting rod (8) and is configured to annularly support the heat pipe (2).

10. The heat pipe collector according to any one of claims 1 to 8, characterized in that: It also comprises heat conducting sheets (3) which are arranged at intervals on the outer surface of the condensing section (22) along the length direction of the heat pipe (2) to increase the contact area between the condensing section (22) and the first working medium.

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