Intermediate sealing baffle plate for heat pipe heat exchanger
Patent Information
- Application Number
- CN202522618472.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-10
AI Technical Summary
但由于热管换热器的热管在使用过程中，热管自身温度变化较大，产生的温度梯度也比较明显，加上烟气侧可能发生的腐蚀，因此，在使用过程中容易发生开裂等问题，根据使用故障的情况统计，60%以上的热管换热器故障都是密封隔板发生了问题
1.本申请采用螺纹连接后，第一密封环形挡板抵接设置在活动抵接环形板和隔板本体之间，第二密封环形挡板抵接设置在固定抵接环形板和隔板本体之间，能够保证整体密封性，相较于焊接也有一定柔性，能够降低整体的故障率。
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Figure CN224905858U_ABST
Abstract
Description
Technical Field
[0001] This application relates to an intermediate sealing partition for a heat pipe heat exchanger. Background Technology
[0002] A heat pipe heat exchanger is a device used for recovering waste heat from boiler flue gas. It transfers heat through a phase change of the medium within the heat pipes, thereby reducing flue gas temperature and improving boiler efficiency. The overall structure needs to span between the flue and air ducts; therefore, it must ensure airtightness with both the flue gas and air sides while maintaining structural stability. To ensure structural reliability, welding is generally used. However, due to the significant temperature variations and noticeable temperature gradients generated by the heat pipes during operation, coupled with potential corrosion on the flue gas side, cracking and other problems are prone to occur. Statistics show that over 60% of heat pipe heat exchanger failures are due to problems with the sealing baffles. Utility Model Content
[0003] To address the aforementioned problems, this application proposes an intermediate sealing partition for a heat pipe heat exchanger, comprising a partition body with a plurality of mounting holes. An internally threaded pipe is fixedly connected to one of the mounting holes, and a heat pipe body is mounted on the internally threaded pipe. A threaded connecting section is provided on the heat pipe body corresponding to the position of the internally threaded pipe. A fixed abutting annular plate is provided on one side of the threaded connecting section, and a movable abutting annular plate is provided on the other side of the threaded connecting section relative to the partition body. The movable abutting annular plate is located on the side opposite to the fixed abutting annular plate relative to the partition body, and is threadedly connected to the outside of the threaded connecting section. A first sealing annular baffle is provided between the movable abutting annular plate and the partition body, and a second sealing annular baffle is provided between the fixed abutting annular plate and the partition body. After adopting a threaded connection, the first sealing annular baffle is abutted between the movable abutting annular plate and the partition body, and the second sealing annular baffle is abutted between the fixed abutting annular plate and the partition body. This can ensure the overall sealing performance and has a certain degree of flexibility compared to welding, which can reduce the overall failure rate.
[0004] Preferably, the two sides of the internally threaded tube extend beyond the partition body. The width of the internally threaded tube on the side that is fixedly abutting the annular plate is h1, and the width of the first sealing annular baffle is H1, where 1 / 3H1 < h1 < 2 / 3H1; the width of the internally threaded tube on the side that is movablely abutting the annular plate is h2, and the width of the second sealing annular baffle is H2, where 1 / 3H2 < h2 < 2 / 3H2. This application uses a sleeved and then abutting compression method to form a sealed cavity as a whole. This sealed cavity gives the whole a certain degree of connection flexibility, can adapt to thermal expansion and contraction, and also has a relatively good sealing effect.
[0005] Preferably, the width h1 of the internally threaded tube located on the fixed abutting annular plate side is the same as the width h2 of the internally threaded tube located on the movable abutting annular plate side.
[0006] Preferably, the first sealing annular baffle is an aluminum plate, and a plurality of first cavities are provided on the inner side of the first sealing annular baffle, and a plurality of first reinforcing blocks are provided in the first cavities; the first reinforcing blocks are stainless steel blocks. By providing reinforcing blocks in the sealing annular baffle, this application can avoid excessive compression failure, thereby ensuring the stability of the overall structure.
[0007] Preferably, the outer surface of the first reinforcing block is disposed on the inner side of the outer surface of the first sealing annular baffle.
[0008] Preferably, the second sealing annular baffle is an aluminum plate, and a plurality of second cavities are provided on the inner side of the second sealing annular baffle, and a plurality of second reinforcing blocks are provided in the second cavities; the second reinforcing blocks are stainless steel blocks.
[0009] Preferably, the outer surface of the second reinforcing block is disposed on the inner side of the outer surface of the second sealing annular baffle.
[0010] This application can bring the following beneficial effects: 1. With the use of threaded connection, the first sealing annular baffle is abutted between the movable abutting annular plate and the partition body, and the second sealing annular baffle is abutted between the fixed abutting annular plate and the partition body. This ensures overall sealing and provides a certain degree of flexibility compared to welding, thereby reducing the overall failure rate.
[0011] 2. This application adopts a sleeve-and-press method to form a sealed cavity as a whole. This sealed cavity gives the whole a certain degree of connection flexibility, can adapt to thermal expansion and contraction, and can also have a good sealing effect.
[0012] 3. By setting a reinforcing block inside the sealed annular baffle, this application can avoid excessive compression failure, thereby ensuring the stability of the overall structure. Attached Figure Description
[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the internal structure of this application; Figure 2 This is a schematic diagram of the exploded structure of the internally threaded pipe section; Detailed Implementation
[0014] To clearly illustrate the technical features of this solution, the following detailed description, in conjunction with the accompanying drawings, will be provided.
[0015] In the first embodiment, such as Figure 1-2 As shown, an intermediate sealing partition for a heat pipe heat exchanger includes a partition body 1, a plurality of mounting holes 2 on the partition body 1, an internally threaded pipe 3 fixedly connected to the mounting holes 2, a heat pipe body 4 mounted on the internally threaded pipe 3, a threaded connection section 5 on the heat pipe body 4 corresponding to the position of the internally threaded pipe 3, a fixed abutting annular plate 6 (which may be provided with a snap-fit groove or other force-applying part) on one side of the threaded connection section 5, and a movable abutting annular plate 7 (which may be provided with a snap-fit groove or other force-applying part) on the other side of the threaded connection section 5 relative to the partition body 1. The movable abutting annular plate 7 is located on the other side of the partition body 1 relative to the fixed abutting annular plate 6, and is threadedly connected to the outside of the threaded connection section 5. A first sealing annular baffle 8 is provided between the movable abutting annular plate 7 and the partition body 1, and a second sealing annular baffle 9 is provided between the fixed abutting annular plate 6 and the partition body 1.
[0016] In use, the first sealing ring baffle is first set on the internal threaded tube 3 on one side of the partition body 1, and the second sealing ring baffle is set on the internal threaded tube 3 on the other side of the partition body 1; then the heat pipe body 4 passes through the internal threaded tube 3 on the mounting hole 2, and then uses the threaded connecting section 5 on it to thread it to the internal threaded tube 3; during this process, the first sealing ring baffle 8 is pressed between the movable abutting ring plate 7 and the partition body 1; the second sealing ring baffle is pressed between the fixed abutting ring plate 6 and the partition body 1.
[0017] In the second embodiment, as Figure 1-2 As shown, an intermediate sealing partition for a heat pipe heat exchanger includes a partition body 1, a plurality of mounting holes 2 on the partition body 1, an internally threaded pipe 3 fixedly connected to the mounting holes 2, a heat pipe body 4 mounted on the internally threaded pipe 3, a threaded connection section 5 on the heat pipe body 4 corresponding to the position of the internally threaded pipe 3, a fixed abutting annular plate 6 on one side of the threaded connection section 5, and a movable abutting annular plate 7 on the other side of the threaded connection section 5 relative to the partition body 1. The movable abutting annular plate 7 is located on the other side of the partition body 1 relative to the fixed abutting annular plate 6, and is threadedly connected to the outside of the threaded connection section 5. A first sealing annular baffle 8 is provided between the movable abutting annular plate 7 and the partition body 1, and a second sealing annular baffle 9 is provided between the fixed abutting annular plate 6 and the partition body 1.
[0018] The internally threaded tube 3 extends beyond the partition body 1 on both sides. The width of the internally threaded tube 3 located on the side of the fixed abutment annular plate 6 is h1, and the width of the first sealing annular baffle 8 is H1, where 1 / 3H1 < h1 < 2 / 3H1. The width of the internally threaded tube 3 located on the side of the movable abutment annular plate 7 is h2, and the width of the second sealing annular baffle 9 is H2, where 1 / 3H2 < h2 < 2 / 3H2. The width h1 of the internally threaded tube 3 located on the side of the fixed abutment annular plate 6 is the same as the width h2 of the internally threaded tube 3 located on the side of the movable abutment annular plate 7.
[0019] The first sealing annular baffle 8 is an aluminum plate. A plurality of first cavities 10 are provided on the inner side of the first sealing annular baffle 8, and a plurality of first reinforcing blocks 11 are provided within each of the first cavities 10. The first reinforcing blocks 11 are stainless steel blocks. The outer surface of the first reinforcing blocks 11 is located inside the outer surface of the first sealing annular baffle 8, i.e., recessed within it. The second sealing annular baffle 9 is an aluminum plate. A plurality of second cavities 12 are provided on the inner side of the second sealing annular baffle 9, and a plurality of second reinforcing blocks 13 are provided within each of the second cavities 12. The second reinforcing blocks 13 are stainless steel blocks. The outer surface of the second reinforcing blocks 13 is located inside the outer surface of the second sealing annular baffle 9, i.e., recessed within it.
[0020] In use, the first reinforcing block 11 is first inserted into the first cavity 10, and the second reinforcing block 13 is inserted into the second cavity 12. Then, the first sealing ring baffle is set on the internal threaded tube 3 on one side of the partition body 1, and the second sealing ring baffle is set on the internal threaded tube 3 on the other side of the partition body 1. Then, the heat pipe body 4 passes through the internal threaded tube 3 on the mounting hole 2, and then uses the threaded connecting section 5 on it to thread it to the internal threaded tube 3. During this process, the first sealing ring baffle 8 is pressed between the movable abutting ring plate 7 and the partition body 1; the second sealing ring baffle is pressed between the fixed abutting ring plate 6 and the partition body 1.
[0021] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. An intermediate sealing partition for a heat pipe heat exchanger, characterized in that: The device includes a partition body with several mounting holes. An internally threaded tube is fixedly connected to one of the mounting holes. A heat pipe body is mounted on the internally threaded tube. A threaded connection section is located on the heat pipe body corresponding to the internally threaded tube. A fixed abutting annular plate is located on one side of the threaded connection section, and a movable abutting annular plate is located on the other side of the threaded connection section relative to the partition body. The movable abutting annular plate is located on the opposite side of the fixed abutting annular plate relative to the partition body and is threaded to the outside of the threaded connection section. A first sealing annular baffle is located between the movable abutting annular plate and the partition body, and a second sealing annular baffle is located between the fixed abutting annular plate and the partition body.
2. The intermediate sealing partition for a heat pipe heat exchanger as described in claim 1, characterized in that: The internally threaded tube extends beyond the partition body on both sides. The width of the internally threaded tube on the side that is fixedly abutting the annular plate is h1, and the width of the first sealing annular baffle is H1, where 1 / 3H1 < h1 < 2 / 3H1; the width of the internally threaded tube on the side that is movablely abutting the annular plate is h2, and the width of the second sealing annular baffle is H2, where 1 / 3H2 < h2 < 2 / 3H2.
3. The intermediate sealing partition for a heat pipe heat exchanger as described in claim 1, characterized in that: The width h1 of the internally threaded tube located on the fixed abutting annular plate side is the same as the width h2 of the internally threaded tube located on the movable abutting annular plate side.
4. The intermediate sealing partition for a heat pipe heat exchanger as described in claim 1, characterized in that: The first sealing annular baffle is an aluminum plate, and a plurality of first cavities are provided on the inner side of the first sealing annular baffle, and a plurality of first reinforcing blocks are provided in the first cavities; the first reinforcing blocks are stainless steel blocks.
5. The intermediate sealing partition for a heat pipe heat exchanger as described in claim 4, characterized in that: The outer surface of the first reinforcing block is disposed on the inner side of the outer surface of the first sealing annular baffle.
6. The intermediate sealing partition for a heat pipe heat exchanger as described in claim 1, characterized in that: The second sealing annular baffle is an aluminum plate, and a plurality of second cavities are provided on the inner side of the second sealing annular baffle. A plurality of second reinforcing blocks are provided in the second cavities; the second reinforcing blocks are stainless steel blocks.
7. The intermediate sealing partition for a heat pipe heat exchanger as described in claim 6, characterized in that: The outer surface of the second reinforcing block is disposed on the inner side of the outer surface of the second sealing annular baffle.