Heat pipe assembly structure

Abstract

The utility model discloses a heat pipe assembly structure which comprises a pipe body, fins, a positioning ring and a connecting ring, the pipe body is provided with a cavity, the cavity is filled with heat exchange media, the fins are arranged on the periphery of the pipe body in a surrounding mode, the positioning ring is fixedly connected to the periphery of the middle of the pipe body, the outer diameter of the positioning ring is smaller than that of the fins, and the connecting ring comprises a first ring body and a second ring body. The first ring body and the second ring body are both of a semi-annular structure and are detachably connected, the positioning ring is sleeved with the connecting ring, and the outer diameter of the connecting ring is larger than that of the fins. When the heat pipe assembly structure is used, the detachable connecting ring is arranged between the positioning ring and the fixing plate of the waste heat equipment as a transition piece, and when the heat pipe needs to be replaced, only the heat pipe provided with the positioning ring needs to be replaced, so that the connecting ring can be repeatedly used, the heat pipe replacement cost is reduced, and the heat pipe replacement efficiency is improved. Therefore, the device has the advantage of low maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pipes, in particular to a heat pipe assembly structure. Background Art

[0002] A waste heat boiler (HRSG) is a type of boiler that uses waste heat from industrial processes or other equipment to generate steam. Its primary function is to recover waste heat and convert it into valuable steam, thereby improving energy efficiency. For example, in steel mills, blast furnaces, converters, and other equipment generate large amounts of high-temperature exhaust gases during production. HRSGs can recover the heat from these gases to generate steam for power generation, powering equipment, or providing heat.

[0003] Among them, the heat pipe is one of the important working components of the waste heat boiler. One end of the heat pipe is heated by hot flue gas, and the other end is inserted into the low-temperature water body. The heat exchange medium in the heat pipe absorbs heat and then heats the low-temperature water body, causing the water body to generate water vapor.

[0004] The Chinese Patent Database discloses a patent application titled "Inner Grooved Heat Pipe Device for Sintering Large Flue Waste Heat Boilers," with application number 201920843408.3 and filing date June 5, 2019. This utility model discloses an inner grooved heat pipe device for sintering large flue waste heat boilers. The device comprises a heat pipe, fins, and a mid-rib plate. The heat pipe has a closed inner cavity, the mid-rib plate is fixedly mounted in the middle of the heat pipe's outer wall, the fins are mounted on the heat pipe's outer wall, and are located on the upper and lower sides of the mid-rib plate. The heat pipe's inner wall is provided with inner grooves. The shortcoming of this patented technical solution is that the middle waist plate is directly welded to the heat pipe, and a sealing ring is provided on the outer ring of the middle waist plate. The connection is achieved by plugging the middle waist plate into the fixed plate of the waste heat boiler. Since the heat pipe is provided with fins with a larger area on the periphery, the fins are located on both sides of the fixed plate. Therefore, the outer diameter of the middle waist plate must be larger than the outer diameter of the fins so that the fins can pass through the fixed plate. There are many heat pipes in the waste heat boiler. When the heat pipe has problems and needs to be replaced, the cost of replacing the middle waist plate together with the heat pipe is relatively high, so there is a problem of high maintenance cost in the later stage. Utility Model Content

[0005] The embodiments of the present application provide a heat pipe assembly structure for reducing the later maintenance costs of heat pipes in a waste heat boiler.

[0006] The present invention provides a heat pipe assembly structure, comprising:

[0007] The tube body has a cavity filled with a heat exchange medium;

[0008] Fins are arranged around the outer periphery of the tube;

[0009] A positioning ring is fixedly connected to the outer periphery of the middle portion of the tube body, and the outer diameter of the positioning ring is smaller than the outer diameter of the fin;

[0010] The connecting ring includes a first ring body and a second ring body. The first ring body and the second ring body are both semicircular ring structures. The first ring body and the second ring body are detachably connected. The connecting ring is mounted on the positioning ring. The outer diameter of the connecting ring is larger than the outer diameter of the fin.

[0011] The beneficial effect of the above embodiment is that when this heat pipe assembly structure is in use, a detachable connecting ring is provided, which is provided as a transition piece between the positioning ring and the fixed plate of the waste heat equipment. When the heat pipe needs to be replaced, only the heat pipe with the positioning ring needs to be replaced. Therefore, the connecting ring can be reused, which reduces the cost of replacing the heat pipe and thus has the advantage of low maintenance cost.

[0012] Based on the above embodiment, the embodiment of the present application can also be improved as follows:

[0013] In one embodiment of the present application, the fins are provided with notches on their periphery. The beneficial effect of this step is that the notches reduce the accumulation of dust in the soot.

[0014] In one embodiment of the present application, the notches form a radial structure on the surface of the fins. The beneficial effect of this step is to ensure uniform heat dissipation of the fins.

[0015] In one embodiment of the present application, the root of the notch is an arc-shaped structure. The beneficial effect of this step is to avoid stress concentration at the root.

[0016] In one embodiment of the present application, the outer circumference of the positioning ring is provided with a positioning groove, and the inner ring of the connecting ring is provided with a positioning block corresponding to the positioning groove, and the positioning block is inserted into the positioning groove. The beneficial effect of this step is that the positioning groove and the positioning block cooperate to achieve the connection relationship between the positioning ring and the connecting ring.

[0017] In one embodiment of the present application, a limiting block is configured on the end face of the first ring body, and a limiting groove is configured on the end face of the second ring body corresponding to the limiting block, and the limiting block is inserted into the limiting groove. The beneficial effect of this step is that the limiting groove and the limiting block cooperate to improve the stability of the connecting ring structure after assembly.

[0018] In one embodiment of the present application, the invention further comprises: a first sealing member disposed between the inner ring of the connecting ring and the positioning ring; and a second sealing member disposed between the joint surface of the first ring body and the second ring body. The beneficial effect of this step is that the first sealing member improves the sealing effect between the positioning ring and the connecting ring, and the second sealing member improves the sealing effect between the joint surface of the first ring body and the second ring body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0020] Figure 1 is a schematic diagram of a heat pipe installation structure;

[0021] Figure 2 is a cross-sectional view of the connecting ring;

[0022] Figure 3 is a schematic diagram of the fin structure;

[0023] Figure 4 It is a structural diagram of the connection between the positioning ring and the connecting ring;

[0024] Figure 5 It is a cross-sectional schematic diagram of the limiting boss.

[0025] Among them, 1 is a tube body, 2 is a fin, 201 is a notch, 3 is a positioning ring, 301 is a positioning groove, 4 is a connecting ring, 401 is a first ring body, 402 is a second ring body, 403 is a positioning block, 404 is a limiting block, 405 is a limiting groove, 5 is a first seal, 6 is a second seal, and 7 is a bolt. DETAILED DESCRIPTION

[0026] In this application, unless otherwise specified or limited, the terms used in this application should be understood broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection. It can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of different terms in this utility model can be understood according to specific circumstances. The scope of the specific meanings should be limited to achieving the functions of this application.

[0027] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figure 1 、 2As shown, a heat pipe assembly structure includes: a tube body 1, fins 2, a positioning ring 3, and a connecting ring 4. The tube body 1 has a cavity filled with a heat exchange medium. The fins 2 are arranged around the outer periphery of the tube body 1. The positioning ring 3 is fixedly connected to the outer periphery of the middle part of the tube body 1. The outer diameter of the positioning ring 3 is smaller than the outer diameter of the fins 2. The connecting ring 4 includes a first ring body 401 and a second ring body 402. The first ring body 401 and the second ring body 402 are both semicircular ring structures. The first ring body 401 and the second ring body 402 are detachably connected. The connecting ring 4 is mounted on the positioning ring 3. The outer diameter of the connecting ring 4 is larger than the outer diameter of the fins 2.

[0029] Specifically, such as Figure 3 As shown, a notch 201 is provided on the periphery of the fin 2. The purpose of providing the notch 201 is that, since the flue gas contains a large amount of soot, when the flue gas passes through the fin 2, the soot will accumulate on the surface of the fin 2. When the soot accumulates very thickly on the surface of the fin 2, the soot not only affects the heat dissipation of the fin 2, but also the heat dissipation of the tube body 1 itself, thereby affecting the overall heat dissipation effect. By providing the notch 201 on the surface of the fin 2, the soot accumulated on the surface of the fin 2 will not accumulate too high and collapse and fall through the notch 201. Therefore, the amount of soot accumulated on the surface of the fin 2 can be reduced, thereby ensuring that the heat pipe has a continuously good heat exchange performance.

[0030] Specifically, such as Figure 3 As shown, the notches 201 form a radial structure on the surface of the fin 2 to ensure uniform heat dissipation of the fin 2 .

[0031] Specifically, such as Figure 3 As shown, the root of the notch 201 is an arc-shaped structure to avoid stress concentration at the root.

[0032] Specifically, such as Figure 3 As shown, the outer periphery of the positioning ring 3 is provided with a positioning groove 301, and the inner ring of the connecting ring 4 is provided with a positioning block 403 corresponding to the positioning groove 301, and the positioning block 403 is inserted into the positioning groove 301. The positioning groove 301 cooperates with the positioning block 403 to achieve the connection relationship between the positioning ring 3 and the connecting ring 4.

[0033] Specifically, such as Figure 1 、 2 As shown, the positioning groove 301 is a circular groove structure opened on the outer periphery of the positioning ring 3, and the positioning block 403 is a circular block-shaped protrusion correspondingly configured on the inner ring of the connecting ring 4.

[0034] Specifically, such as Figure 2 As shown, the end face of the first ring body 401 is provided with a limit block 404, and the end face of the second ring body 402 is provided with a limit groove 405 corresponding to the limit block 404, and the limit block 404 is inserted into the limit groove 405. The limit groove 405 cooperates with the limit block 404 to improve the stability of the connecting ring 4 structure after assembly.

[0035] Specifically, such as Figure 2 、 4 As shown in Figures 5 and 6, the heat pipe assembly structure further includes a first seal 5 and a second seal 6. The first seal 5 is disposed between the inner ring of the connecting ring 4 and the positioning ring 3, and the second seal 6 is disposed between the joint surfaces of the first ring body 401 and the second ring body 402. The first seal 5 improves the sealing effect between the positioning ring 3 and the connecting ring 4, while the second seal 6 improves the sealing effect between the joint surfaces of the first ring body 401 and the second ring body 402.

[0036] Specifically, such as Figure 4 As shown, the first sealing member 5 is a sealing ring, a sealing ring groove is formed on the groove wall of the positioning groove 301, and the first sealing member 5 is sleeved in the sealing ring groove.

[0037] Specifically, such as Figure 2 、 5 As shown, the second sealing member 6 is a sealing gasket, which is sleeved on the outside of the limiting block 404. The shape of the sealing gasket matches the shape of the end face of the connecting block to avoid interference between the sealing gasket and other structures.

[0038] Specifically, such as Figure 5 As shown, the upper end of the outer periphery of the connecting ring 4 is provided with a shoulder, and the lower end of the shoulder is sequentially fitted with two sealing rings. The connecting ring 4 is positioned on the fixed plate corresponding to the waste heat boiler through the shoulder, and the two sealing rings achieve a sealing effect between the connecting ring 4 and the fixed plate.

[0039] Specifically, such as Figure 2 As shown, the first ring body 401 and the second ring body 402 are connected by bolts 7, and two grooves are respectively provided on the outer periphery of both sides of the second ring body 402. The groove width is greater than the length of the bolt 7, and a through hole is provided on the side of the groove corresponding to the limit block 404, and a threaded hole is provided on the limit block 404 corresponding to the through hole. The bolt 7 passes through the through hole and is threadedly connected with the threaded hole, thereby fixing the first ring body 401 and the second ring body 402. The position of the groove should be careful to avoid interference with the sealing ring on the outside of the connecting ring 4, that is, in terms of height, the position of the groove should be staggered with the position of the sealing ring on the outer periphery of the connecting ring 4.

[0040] When this heat pipe assembly structure is in use, a detachable connecting ring 4 is provided as a transition piece, which is arranged between the positioning ring 3 and the fixed plate of the waste heat equipment. When the heat pipe needs to be replaced, only the heat pipe with the positioning ring 3 needs to be replaced. Therefore, the connecting ring 4 can be reused, which reduces the cost of replacing the heat pipe and has the advantage of low maintenance cost.

[0041] The above are only embodiments of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme based on their own abilities under the guidance of this application. Some typical known structures or methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, they can also make several variations and improvements, which should also be regarded as the scope of protection of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A heat pipe assembly structure, characterized in that: include: The tube body has a cavity filled with a heat exchange medium; Fins are arranged around the outer periphery of the tube; A positioning ring is fixedly connected to the outer periphery of the middle portion of the tube body, and the outer diameter of the positioning ring is smaller than the outer diameter of the fin; The connecting ring includes a first ring body and a second ring body. The first ring body and the second ring body are both semicircular ring structures. The first ring body and the second ring body are detachably connected. The connecting ring is mounted on the positioning ring. The outer diameter of the connecting ring is larger than the outer diameter of the fin.

2. The heat pipe assembly structure according to claim 1, characterized in that: A notch is provided on the outer periphery of the fin.

3. The heat pipe assembly structure according to claim 2, characterized in that: The notches form a radial structure on the surface of the fin.

4. The heat pipe assembly structure according to claim 2, characterized in that: The root of the notch is an arc-shaped structure.

5. The heat pipe assembly structure according to claim 1, characterized in that: The outer periphery of the positioning ring is provided with a positioning groove, the inner ring of the connecting ring is provided with a positioning block corresponding to the positioning groove, and the positioning block is inserted into the positioning groove.

6. The heat pipe assembly structure according to claim 1, characterized in that: The end surface of the first ring body is provided with a limiting block, the end surface of the second ring body is provided with a limiting groove corresponding to the limiting block, and the limiting block is inserted into the limiting groove.

7. The heat pipe assembly structure according to claim 1, characterized in that: Also includes: a first sealing member, disposed between the inner ring of the connecting ring and the positioning ring; The second sealing member is arranged between the joint surfaces of the first ring body and the second ring body.

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