A connecting structure for a gravity heat pipe

Abstract

The utility model discloses a kind of connecting structure for gravity heat pipe, including heat pipe body, the heat pipe body is tubular structure, its internal cavity includes by sequentially penetrating and connecting from bottom to top evaporator section, balance section and condenser section, the condenser section inside is equipped with heat exchange cavity, the inner wall of heat exchange cavity upper end is provided with the connecting assembly for fixed, the connecting assembly includes first vertical groove and first clamping groove, the first vertical groove is respectively set in the inner wall of heat exchange cavity upper end both sides along vertical direction, the first clamping groove is 1 outwardly extending groove, and it is connected and arranged in the bottom of first vertical groove, by being provided with first vertical groove, inlet, first clamping groove and clamping block, when needing to assemble gravity heat pipe, clamping block can be inserted into first vertical groove, since inlet is inclined plane, clamping block will be deformed towards inside direction, after deformation, clamping block can normally move downward and reach first clamping groove, so that the quick plug-in of gravity heat pipe is realized.

Description

Technical Field

[0001] This utility model relates to the field of gravity heat pipes, and specifically to a connection structure for gravity heat pipes. Background Technology

[0002] Gravity heat pipe heating, as a wellbore heating technology, makes full use of the high-grade heat energy at the bottom of the well. Through the heat storage and conduction of the heat pipe, part of the heat energy of the fluid at the bottom of the well is transferred to the fluid near the wellhead pipe section, which plays a role in balancing the temperature field of the wellbore, reducing heat transfer loss, and increasing the temperature of crude oil at the wellhead, thereby achieving low-energy heating of the wellbore fluid.

[0003] Chinese Patent No. CN202320191121.3 discloses a combined gravity heat pipe, comprising an evaporation section, a balancing section, and a condensation section connected sequentially from bottom to top. A heat exchange cavity is recessed along the axis on the top surface of the condensation section, with the inner diameter of the heat exchange cavity being the same as the outer diameter of the evaporation section. At least one vertically arranged slot is recessed in the inner wall of the heat exchange cavity, with its upper end open and its lower end connected to a horizontally arranged arc-shaped groove. A locking block is protruding from the bottom of the circumferential surface of the evaporation section, the number of locking blocks being the same as the number of slots. The horizontal cross-sectional dimension of the locking block is less than or equal to the horizontal cross-sectional dimension of the slot, and the height of the arc-shaped groove is the same as the thickness of the locking block. This invention connects two adjacent gravity heat pipe units through a snap-fit ​​method, with a short snap-fit ​​stroke, facilitating disassembly.

[0004] When the above solution is used, since the fixed end of the card block is connected to the circumferential surface of the evaporation section, it is not convenient to deform when the card block is inserted into the arc-shaped card slot, which makes it difficult to assemble adjacent heat pipes and inconvenient to assemble them.

[0005] Therefore, in view of the above-mentioned technical defects, it is necessary to propose a connection structure for gravity heat pipes. Summary of the Invention

[0006] The purpose of this invention is to provide a connection structure for gravity heat pipes, which aims to solve the problem of difficulty in quickly connecting and fixing adjacent gravity heat pipes during the assembly process.

[0007] This utility model is achieved through the following technical solution: A connection structure for a gravity heat pipe includes a heat pipe body, the heat pipe body having a tubular structure, and its internal cavity including an evaporation section, a balancing section, and a condensation section connected sequentially from bottom to top. A heat exchange cavity is provided inside the condensation section. The heat exchange cavity has a connection component for fixing on its upper inner wall. The connection component includes a first vertical groove and a first locking groove. The first vertical groove is vertically formed on both sides of the upper inner wall of the heat exchange cavity. The first locking groove is an outwardly extending groove connected to the bottom of the first vertical groove. Locking blocks are vertically formed on both sides of the outer wall of the evaporation section, wherein the lower end of the locking block is fixedly connected to the outer wall surface of the evaporation section, and the upper end of the locking block can deform under pressure. The locking block engages with the first locking groove.

[0008] Furthermore, the connecting component also includes an inlet, which is an outwardly extending inclined surface and is connected to the top of the first vertical groove, and the inlet is also connected to the top surface of the condensation section.

[0009] Furthermore, the sum of the widths of the inner walls of the first slot and the heat exchange cavity is greater than the sum of the widths of the inner walls of the first vertical groove and the heat exchange cavity.

[0010] Furthermore, the inner wall of the heat exchange cavity is provided with a second slot that communicates with the first slot along the circumferential direction. The second slot is adapted to the first slot, and the internal width of the second slot is the same as that of the first slot. A pressing block is provided at the upper end of the inner wall of the second slot.

[0011] Furthermore, a transition section is formed at the end of the extrusion block opposite to the card block, and the transition section is specifically an inclined slope.

[0012] Furthermore, the contact surfaces of the compression block and the locking block are respectively provided with a first meshing tooth and a second meshing tooth that are adapted to each other. The first meshing tooth and the second meshing tooth have a sawtooth structure. In use, the locking block can drive the first meshing tooth to move in one direction. After the movement, the second meshing tooth can lock the first meshing tooth.

[0013] Furthermore, limiting components are provided on the front and rear sides of the inner wall of the heat exchange cavity. The limiting components include a second vertical groove and a limiting groove. The first vertical groove is opened vertically on the inner wall surface of the heat exchange cavity, and the interior of the first vertical groove is connected to the top surface of the condensation section. The limiting groove is opened horizontally on the inner wall surface of the heat exchange cavity, and one end of the limiting groove is connected to the lower end of the interior of the first vertical groove. The outer side of the evaporation section is provided with a connecting block that is adapted to the first vertical groove and the limiting block, and one end of the connecting block extends into the first vertical groove.

[0014] Furthermore, the outer diameter of the balancing section is the same as that of the condensing section. The top and bottom surfaces of the condensing section are connected along the height direction and have a tubular heat exchange cavity. The inner diameter of the heat exchange cavity is the same as that of the outer diameter of the evaporating section, and the depth of the heat exchange cavity is the same as that of the height of the evaporating section.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. This utility model discloses a connection structure for gravity heat pipes. It includes a first vertical groove, an inlet, a first slot, and a locking block. When assembling the gravity heat pipe, the locking block can be inserted into the first vertical groove. Since the inlet is inclined, the locking block will deform inward. After deformation, the locking block can move downward normally and reach the first slot. Because the first slot is an outwardly extending groove structure, when the pressed locking block enters the first slot, it will return to its original shape. At this time, the top surface of the locking block will abut against the top surface of the first slot, thus realizing the quick insertion of the gravity heat pipe.

[0016] 2. This utility model discloses a connection structure for gravity heat pipes. It includes a second slot communicating with a first slot, and a pressing block within the second slot. When the user rotates the heat pipe, the pressing block moves from the first slot into the second slot, bringing it into contact with the pressing block. Upon contact, the pressing block causes the pressing block to elastically deform, moving it inwards. The upper end of the pressing block then contacts the outer wall of the evaporation section. After contact, the pressing block cannot deform further and remains pressed against the pressing block. This design increases the friction between the pressing block and the pressing block, resulting in a tighter connection between the two heat pipes. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Sectional view at point A in the middle; Figure 3 This is a schematic diagram of the condenser section structure of this utility model; Figure 4 This is an axial half-sectional view of the location of the condensation section of this utility model; Figure 5 This utility model Figure 4 Enlarged view of section B in the middle.

[0018] The attached diagram shows the markings and corresponding component names: 1-Heat pipe body; 11-Evaporation section; 12-Balancing section; 13-Condensation section; 14-Clamping block; 15-Connecting block; 2-Connecting component; 21-First vertical groove; 22-Inlet; 23-First slot; 24-Second slot; 25-Extrusion block; 251-Transition section; 3-Limiting component; 31-Second vertical groove; 32-Limiting groove; 4-First meshing tooth; 41-Second meshing tooth. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention.

[0021] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0022] Furthermore, for clarity and brevity, descriptions of well-known structures, functions, and configurations may have been omitted. Those skilled in the art will recognize that various changes and modifications can be made to the examples described herein without departing from the spirit and scope of this disclosure.

[0023] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0024] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0025] Example 1 like Figures 1-5As shown, this utility model discloses a connection structure for a gravity heat pipe, including a heat pipe body 1. The heat pipe body 1 has a tubular structure, and its internal cavity includes an evaporation section 11, a balance section 12, and a condensation section 13 connected sequentially from bottom to top. The balance section 12 and the condensation section 13 have the same outer diameter. The top and bottom surfaces of the condensation section 13 are connected along the height direction to form a tubular heat exchange cavity. The inner diameter of the heat exchange cavity is the same as the outer diameter of the evaporation section 11, and the depth of the heat exchange cavity is the same as the height of the evaporation section 11. A connection component 2 for fixing is provided at the upper end of the inner wall of the heat exchange cavity. In use, after the evaporation section 11 is inserted into the heat exchange cavity, it can be limited and fixed by the connection component 2.

[0026] The connecting component 2 includes a first vertical groove 21, an inlet 22, and a first slot 23. The first vertical groove 21 includes two sections, which are respectively opened on both sides of the upper end of the inner wall of the heat exchange chamber in the vertical direction. The inlet 22 is an outwardly extending inclined surface, which is connected to the top of the first vertical groove 21. The inlet 22 is also connected to the top surface of the condensing section 13. The first slot 23 is an outwardly extending groove, which is connected to the bottom of the first vertical groove 21. The outer wall of the evaporating section 11 has strip-shaped locking blocks 14 opened on both sides in the vertical direction. The upper end of the locking block 14 can deform under pressure, and the lower end of the locking block 14 is fixedly connected to the outer wall surface of the evaporating section 11.

[0027] During installation, the locking block 14 can be inserted into the first vertical groove 21. Since the inlet 22 is inclined, when a downward pushing force is applied to the locking block 14, the locking block 14 can be deformed inward. After deformation, it is easy to push the locking block 14 into the first locking groove 23. Since the first locking groove 23 is an outwardly extending groove structure, when the pressed locking block 14 enters the first locking groove 23, it will return to its original shape. At this time, the top surface of the locking block 14 will abut against the top surface of the first locking groove 23, thus completing the limiting and fixing work of the locking block 14. After the locking block 14 is restricted, the gravity heat pipe can be assembled.

[0028] Specifically, such as Figure 2 As shown, the sum of the widths of the inner walls of the first slot 23 and the heat exchange cavity is greater than the sum of the widths of the inner walls of the first vertical slot 21 and the heat exchange cavity. This design allows the inner width of the first slot 23 to be greater than the inner width of the first vertical slot 21. When the locking block 14 reaches the first slot 23, it can be elastically reset to move outward. After the movement, the top surface of the locking block 14 can contact the top surface of the first slot 23 with a larger area. In this way, the locking block 14 will not fall out when pulled.

[0029] Specifically, such as Figures 1-3As shown, a second slot 24 communicating with the first slot 23 is provided on the inner wall of the heat exchange cavity along the circumferential direction. The second slot 24 is adapted to the first slot 23, and the internal width of the second slot 24 is the same as that of the first slot 23. Meanwhile, a pressing block 25 is provided at the upper end of the inner wall of the second slot 24. A transition section 251 is formed at the end of the pressing block 25 opposite to the locking block 14. The transition section 251 is specifically an inclined slope.

[0030] In use, the user can rotate the heat pipe body 1. After rotation, the locking block 14 in the first slot 23 can enter the second slot 24. Since the locking block 14 is compatible with the first slot 23 and the second slot 24, when the locking block 14 moves towards the pressing block 25, the pressing block 25 will cause the locking block 14 to undergo elastic deformation. After deformation, the locking block 14 will move inward. After moving, the upper end of the locking block 14 will contact the outer wall surface of the evaporation section 11. After contact, the locking block 14 cannot deform further, so it can only abut against the pressing block 25. This design can increase the friction between the pressing block 25 and the locking block 14, so that the two heat pipes can be connected more tightly, which makes the gravity heat pipe more convenient to install later. The transition section 251 is set to guide the upper end of the locking block 14, which facilitates the deformation of the locking block 14.

[0031] Specifically, such as Figures 3 to 5 As shown, a first meshing tooth 4 and a second meshing tooth 41 are respectively provided between the contact surfaces of the pressing block 25 and the locking block 14. The first meshing tooth 4 and the second meshing tooth 41 have a serrated structure. In use, the locking block 14 can drive the first meshing tooth 4 to move in one direction. After the movement, the second meshing tooth 41 can lock the first meshing tooth 4. This design allows the locking block 14 and the pressing block 25, which are in close contact, to be limited and fixed.

[0032] Specifically, such as 3 and Figure 4 As shown, limiting components 3 are also provided on the front and rear sides of the inner wall of the heat exchange cavity. The limiting components 3 include a second vertical groove 31 and a limiting groove 32. The first vertical groove 21 is opened vertically on the inner wall surface of the heat exchange cavity, and the interior of the first vertical groove 21 is connected to the top surface of the condensing section 13. The limiting groove 32 is opened horizontally on the inner wall surface of the heat exchange cavity, and one end of the limiting groove 32 is connected to the lower end of the interior of the first vertical groove 21. The outer side of the evaporation section 11 is provided with a connecting block 15 that is adapted to the first vertical groove 21 and the limiting block, and one end of the connecting block 15 extends into the first vertical groove 21.

[0033] In use, when the evaporation section 11 of a heat pipe is inserted into the heat exchange chamber of another heat pipe, the locking block 14 and the connecting block 15 can be aligned with the first vertical groove 21 and the second vertical groove 31, respectively. After alignment, the locking block 14 and the connecting block 15 enter the corresponding vertical grooves. Then, the heat pipe is rotated, causing the locking block 14 and the connecting block 15 to move together. After movement, the connecting block 15 enters the limiting groove 32. Since the limiting groove 32 is opened horizontally on the inner wall of the heat exchange chamber, the limiting groove 32 can limit the connection block 15.

[0034] On the other hand, as the top surface of the card block 14 moves inward under the action of the squeezing block 25, the card block 14 is easy to detach from the heat exchange chamber. Therefore, the combination of the limiting groove 32 and the connecting block 15 can limit the card block 14, thereby effectively preventing the card block 14 from detaching.

[0035] The working principle of this utility model is as follows: When it is necessary to assemble gravity heat pipes, first align the evaporation section 11 of one heat pipe with the condensation section 13 of another heat pipe. After alignment, push the locking block 14 and connecting block 15 of the evaporation section 11 into the first vertical groove 21 and the second vertical groove 31 of the heat exchange chamber, respectively.

[0036] When the locking block 14 is inserted into the first vertical groove 21, the locking block 14 will deform inward because the inlet 22 is inclined. After deformation, the locking block 14 can move downward normally and reach the first locking groove 23. Because the first locking groove 23 is an outwardly extending groove structure, when the pressed locking block 14 enters the first locking groove 23, it will return to its original shape. At this time, the top surface of the locking block 14 will abut against the top surface of the first locking groove 23.

[0037] Next, the user rotates the heat pipe, which allows the locking block 14 in the first slot 23 to enter the second slot 24. Since the locking block 14 is compatible with the first slot 23 and the second slot 24, when the locking block 14 moves toward the pressing block 25, the pressing block 25 will cause the locking block 14 to undergo elastic deformation. This increases the friction between the pressing block 25 and the locking block 14, making the connection between the two heat pipes tighter, and thus making the gravity heat pipe more convenient to install later.

[0038] At the same time, when the heat pipe rotates, it will also drive the connecting block 15 to rotate, so that the connecting block 15 enters the horizontal limiting groove 32. In this way, the limiting groove 32 can limit the connecting block 15. When the clamping block 14 is subjected to the action of the squeezing block 25, its top surface will move inward, making it easy for the clamping block 14 to come out of the heat exchange cavity. Therefore, through the cooperation of the limiting groove 32 and the connecting block 15, the clamping block 14 can be limited to prevent it from coming out.

[0039] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A connection structure for a gravity heat pipe, comprising a heat pipe body (1), the heat pipe body (1) having a tubular structure, the internal cavity of which includes an evaporation section (11), an equilibrium section (12), and a condensation section (13) connected sequentially from bottom to top, the condensation section (13) having a heat exchange cavity inside, characterized in that, The upper end of the inner wall of the heat exchange chamber is provided with a connecting component (2) for fixing. The connecting component (2) includes a first vertical groove (21) and a first slot (23). The first vertical groove (21) is opened on both sides of the upper end of the inner wall of the heat exchange chamber in the vertical direction. The first slot (23) is a groove extending outward and connected to the bottom of the first vertical groove (21). The outer walls of the evaporation section (11) are provided with locking blocks (14) in the vertical direction on both sides. The lower end of the locking block (14) is fixedly connected to the outer wall surface of the evaporation section (11), and the upper end of the locking block (14) can deform after being pressed. The locking block (14) is engaged with the first slot (23).

2. The connection structure for a gravity heat pipe according to claim 1, characterized in that, The connecting component (2) also includes an inlet (22), which is an outwardly extending inclined surface and is connected to the top of the first vertical groove (21), and the inlet (22) is also connected to the top surface of the condensation section (13).

3. The connection structure for a gravity heat pipe according to claim 1, characterized in that, The sum of the width of the first slot (23) and the inner wall of the heat exchange cavity is greater than the sum of the width of the first vertical slot (21) and the inner wall of the heat exchange cavity.

4. The connection structure for a gravity heat pipe according to claim 1, characterized in that, The inner wall of the heat exchange cavity is provided with a second slot (24) that communicates with the first slot (23) along the circumferential direction. The second slot (24) is adapted to the first slot (23), and the internal width of the second slot (24) is the same as that of the first slot (23). An extrusion block (25) is provided at the upper end of the inner wall of the second slot (24).

5. A connection structure for a gravity heat pipe according to claim 4, characterized in that, The end of the compression block (25) opposite to the card block (14) has a transition section (251), which is specifically an inclined slope.

6. A connection structure for a gravity heat pipe according to claim 4, characterized in that, The contact surfaces of the compression block (25) and the locking block (14) are respectively provided with a first meshing tooth (4) and a second meshing tooth (41) that are adapted to each other. The first meshing tooth (4) and the second meshing tooth (41) have a sawtooth structure. When in use, the locking block (14) can drive the first meshing tooth (4) to move in one direction. After the movement, the second meshing tooth (41) can lock the first meshing tooth (4).

7. A connection structure for a gravity heat pipe according to claim 1, characterized in that, Limiting components (3) are also provided on the front and rear sides of the inner wall of the heat exchange cavity. The limiting components (3) include a second vertical groove (31) and a limiting groove (32). The first vertical groove (21) is opened vertically on the inner wall of the heat exchange cavity, and the interior of the first vertical groove (21) is connected to the top surface of the condensing section (13). The limiting groove (32) is opened horizontally on the inner wall of the heat exchange cavity, and one end of the limiting groove (32) is connected to the lower end of the interior of the first vertical groove (21). The outer side of the evaporation section (11) is provided with a connecting block (15) that is compatible with the first vertical groove (21) and the limiting block, and one end of the connecting block (15) extends into the first vertical groove (21).

8. A connection structure for a gravity heat pipe according to claim 1, characterized in that, The outer diameter of the balance section (12) is the same as that of the condensation section (13). The top and bottom surfaces of the condensation section (13) are connected along the height direction and a heat exchange cavity with a tubular structure is provided. The inner diameter of the heat exchange cavity is the same as that of the outer diameter of the evaporation section (11), and the depth of the heat exchange cavity is the same as that of the height of the evaporation section (11).

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