Connecting pipe structure of heat exchanger
By designing slots, clips, and locking devices for the first and second tubes, the problem of low connection efficiency in existing heat exchangers was solved, enabling rapid installation and disassembly and improving work efficiency.
Patent Information
- Application Number
- CN202423232637.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing heat exchangers require installation and removal via flanges and multiple screws when connected to other components, resulting in low operating efficiency.
It adopts a special structural design of the first and second tubes, including positioning components and locking devices, and achieves quick connection and disassembly through the cooperation of slots and blocks. It also achieves sealing and quick disassembly by rotating the seal and clamp.
It enables rapid installation and disassembly of heat exchangers, improving work efficiency, and eliminates the need for guide rod alignment during connection, simplifying the operation process.
Smart Images
Figure CN223596650U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchangers, and in particular to a pipe connection structure for a heat exchanger. Background Technology
[0002] In the existing technology, shell and tube heat exchangers, also known as tubular heat exchangers, are indirect heat exchangers that use the wall of the tube bundle enclosed in the shell as the heat transfer surface. This type of heat exchanger has a simple structure, low cost, wide flow cross section, and is easy to clean scale, but it has a low heat transfer coefficient and a large footprint. It can be manufactured using various structural materials (mainly metal materials) and can be used under high temperature and high pressure, making it the most widely used type.
[0003] In the existing technology, heat exchangers are mostly installed by using flanges and multiple screws when connected to other components. Both installation and removal require tightening multiple screws, resulting in low work efficiency. Therefore, a new pipe connection structure for heat exchangers is proposed to address the above shortcomings. Utility Model Content
[0004] This application provides a heat exchanger pipe connection structure, which solves the problem that in the prior art, heat exchangers are mostly installed by using flanges and multiple screws when connected to other components. Installation and removal both require tightening multiple screws, resulting in low work efficiency.
[0005] The technical solutions adopted in the embodiments of this application are as follows.
[0006] A heat exchanger nozzle structure includes a first tube, a second tube detachably connected to the first tube, a positioning element for positioning the second tube on the first tube, and a locking device for preventing gaps between the first tube and the second tube; the first tube has a first groove; the second tube has a second groove; one end of the locking device is inserted into the first groove, and the other end of the locking device is inserted into the second groove; the top surface of the first tube has a third groove; the bottom of the third groove has a plurality of fourth grooves; the positioning element is disposed on the second tube and corresponds to the fourth grooves.
[0007] As a further improvement to the above technical solution: the bottom of the fourth groove is provided with an inclined surface; a first plate is provided on the side wall of the fourth groove; a first locking block is provided on the first plate; the bottom of the positioning member corresponds to the inclined surface and a second locking block is provided in the direction of the positioning member toward the first plate; the first locking block and the second locking block are staggered and interlocked with each other.
[0008] As a further improvement to the above technical solution: a third tube is provided at the bottom of the second tube; the third tube corresponds to the third groove.
[0009] As a further improvement to the above technical solution: a sealing element is provided on the side wall of the third groove.
[0010] As a further improvement to the above technical solution: the locking device includes a first support member, a first clamping plate disposed on the first support member, a second clamping plate rotatably disposed on the first support member, and a limiting member for fixing the first clamping plate and the second clamping plate; the first support member is provided with the first clamping plate, the second clamping plate, and the limiting member at both its upper and lower ends; the limiting member is provided on the end face of the second clamping plate; a sixth groove is formed on the end face of the first clamping plate; a fifth groove is formed on the side wall of the sixth groove; the limiting member is inserted into the sixth groove; the locking part of the limiting member is elastic; the fifth groove corresponds to the locking part of the limiting member; when the locking part of the limiting member corresponding to the fifth groove is pressed, the limiting member disengages from the sixth groove until the locking device is removed.
[0011] As a further improvement to the above technical solution: both the first clamping plate and the second clamping plate are provided with chamfers.
[0012] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:
[0013] 1. Due to the use of a first tube in a tubular shape, a third groove is formed at the top of the first tube, the third groove is annular, and a fourth groove is formed at the bottom of the third groove. The bottom wall of the fourth groove has an inclined surface, and the cross-section of the fourth groove is a right-angled triangle. A first plate is provided on the end face of the fourth groove, which is parallel to the inclined surface. A first locking block is provided on the end face of the first plate, which is semi-circular. A third tube is provided at the bottom of the second tube, and the height and diameter of the third tube correspond to the height and diameter of the third groove. A positioning element is provided at the bottom of the third tube, which is plate-shaped and corresponds to the inclined surface. A second locking block is provided on the end face of the positioning element, which corresponds to the first locking block. When the third tube is inserted into the third groove, the positioning element first contacts the bottom of the third groove. Then, the second tube is rotated so that the positioning element aligns with the fourth groove until the second locking block contacts the first locking block. At this time, the second tube continues to move downward, and then continues to press down and rotate, thereby deforming the first plate so that the first locking block passes over the second locking block until the two are misaligned. At this point, the bottom wall of the third pipe is in complete contact with the bottom of the third groove, and the first and second locking blocks are offset to restrict the position of the third pipe. A sealing element, which is a sealing strip, is provided on the side wall of the third groove. A first clamping plate is provided on the first support, and a second clamping plate is rotatably connected to the first support. Both the first and second clamping plates are semi-circular in shape, forming a complete arc. A limiting element is provided on the end face of the first clamping plate, and the locking point of the limiting element is elastic. A sixth groove is opened on the end face of the second clamping plate, which corresponds to the limiting element. A fifth groove is opened on the side wall of the sixth groove, which corresponds to the locking point of the limiting element. When the limiting element is locked into the fifth groove, the first and second clamping plates form a complete circle. When the locking point of the limiting element corresponding to the fifth groove is pressed, the limiting element is disengaged from the sixth groove until the locking device is removed, thereby achieving quick disassembly of the two sets of pipes and sealing of the two sets of pipes. At the same time, there is no need to consider other devices such as guide rod alignment during assembly. However, this method is slow. Attached Figure Description
[0014] Figure 1 This is a cross-sectional view of the pipe connection structure of the heat exchanger in this utility model.
[0015] Figure 2 This is a cross-sectional view of the pipe connection structure of the heat exchanger in this utility model.
[0016] Figure 3 This is a cross-sectional view of the pipe connection structure of the heat exchanger in this utility model.
[0017] Figure 4 for Figure 2 A magnified view of part A in the image.
[0018] In the diagram: 1. First pipe; 11. First groove; 12. Fifth groove; 13. Third groove; 131. Sealing element; 14. Fourth groove; 141. Inclined surface; 142. First plate; 143. First locking block; 2. Second pipe; 21. Second groove; 22. Third pipe; 3. Positioning element; 31. Second locking block; 4. Locking device; 41. First support element; 42. First clamping plate; 421. Sixth groove; 43. Second clamping plate; 44. Limiting element. Detailed Implementation
[0019] This application provides a heat exchanger pipe connection structure, which solves the problem that in the prior art, heat exchangers are mostly installed by using flanges and multiple screws when connected to other components. Installation and removal both require tightening multiple screws, resulting in low work efficiency.
[0020] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows:
[0021] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0022] A heat exchanger pipe connection structure includes a first pipe 1, a second pipe 2 detachably connected to the first pipe 1, a positioning element 3 for positioning the second pipe 2 on the first pipe 1, and a locking device 4 for preventing gaps between the first pipe 1 and the second pipe 2; the first pipe 1 has a first groove 11; the second pipe 2 has a second groove 21; one end of the locking device 4 is inserted into the first groove 11, and the other end of the locking device 4 is inserted into the second groove 21; the top surface of the first pipe 1 has a third groove 13; the bottom of the third groove 13 has a plurality of fourth grooves 14; the positioning element 3 is disposed on the second pipe 2 and corresponds to the fourth grooves 14.
[0023] The bottom of the fourth groove 14 is provided with an inclined surface 141; a first plate 142 is provided on the side wall of the fourth groove 14; a first locking block 143 is provided on the first plate 142; the bottom of the positioning member 3 corresponds to the inclined surface 141 and a second locking block 31 is provided in the direction of the positioning member 3 facing the first plate 142; the first locking block 143 and the second locking block 31 are staggered and locked together.
[0024] The bottom of the second tube 2 is provided with a third tube 22; the third tube 22 corresponds to the third groove 13.
[0025] A sealing element 131 is provided on the side wall of the third groove 13.
[0026] The locking device 4 includes a first support member 41, a first clamping plate 42 disposed on the first support member 41, a second clamping plate 43 rotating on the first support member 41, and a limiting member 44 fixing the first clamping plate 42 and the second clamping plate 43; the first support member 41 is provided with a first clamping plate 42, a second clamping plate 43 and a limiting member 44 at both its upper and lower ends; the end face of the second clamping plate 43 is provided with a limiting member 44; the end face of the first clamping plate 42 is provided with a sixth groove 421; a fifth groove 12 is provided on the side wall of the sixth groove 421; the limiting member 44 is inserted into the sixth groove 421; the locking part of the limiting member 44 is elastic; the fifth groove 12 corresponds to the locking part of the limiting member 44; when the locking part of the limiting member 44 corresponding to the fifth groove 12 is pressed, the limiting member 44 is disengaged from the sixth groove 421 until the locking device 4 is removed.
[0027] Both the first clamping plate 42 and the second clamping plate 43 have chamfers.
[0028] The first tube 1 is tubular, and a third groove 13 is formed at the top of the first tube 1. The third groove 13 is annular, and a fourth groove 14 is formed at the bottom of the third groove 13. The bottom wall of the fourth groove 14 has an inclined surface 141, and the cross-section of the fourth groove 14 is a right-angled triangle. A first plate 142 is provided on the end face of the fourth groove 14, and the first plate 142 is parallel to the inclined surface 141. A first locking block 143 is provided on the end face of the first plate 142, and the first locking block 143 is semi-circular. A third tube 22 is provided at the bottom of the second tube 2. The height and diameter of the third tube 22 are the same as those of the third groove 13. The height corresponds to the diameter. A positioning element 3 is provided at the bottom of the third tube 22. The positioning element 3 is plate-shaped and corresponds to the inclined surface 141. A second locking block 31 is provided on the end face of the positioning element 3, corresponding to the first locking block 143. When the third tube 22 is inserted into the third groove 13, the positioning element 3 initially contacts the bottom of the third groove 13. Then, the second tube 2 is rotated so that the positioning element 3 corresponds to the fourth groove 14, until the second locking block 31 contacts the first locking block 143. At this point, the second tube 2 continues to move downwards, and then continues to press down and rotate, thereby shaping the first plate 142. The first locking block 143 passes over the second locking block 31 until the two are misaligned. At this time, the bottom wall of the third tube 22 is in complete contact with the bottom of the third groove 13, and the first locking block 143 and the second locking block 31 are misaligned, thus restricting the position of the third tube 22. A sealing element 131 is provided on the side wall of the third groove 13. The sealing element 131 is a sealing strip. A first clamping plate 42 is provided on the first support member 41, and a second clamping plate 43 is rotatably connected to the first support member 41. Both the first clamping plate 42 and the second clamping plate 43 are semi-circular in shape, and the first clamping plate 42 and the second clamping plate 43 form a complete arc. The end face of the first clamping plate 42 is provided with a limiting member 44, and the snap-fit of the limiting member 44 is elastic. The end face of the second clamping plate 43 is provided with a sixth groove 421, which corresponds to the limiting member 44. A fifth groove 12 is provided on the side wall of the sixth groove 421, which corresponds to the snap-fit of the limiting member 44. When the limiting member 44 is snapped into the fifth groove 12, the first clamping plate 42 and the second clamping plate 43 form a complete circle. When the locking member 44 is pressed into the fifth groove 12, the limiting member 44 is disengaged from the sixth groove 421 until the locking device 4 is removed.
[0029] Because the first tube 1 is tubular, and a third groove 13 is formed at the top of the first tube 1, the third groove 13 is annular, and a fourth groove 14 is formed at the bottom of the third groove 13. The bottom wall of the fourth groove 14 has an inclined surface 141, and the cross-section of the fourth groove 14 is a right-angled triangle. A first plate 142 is provided on the end face of the fourth groove 14, and the first plate 142 is parallel to the inclined surface 141. A first locking block 143 is provided on the end face of the first plate 142, and the first locking block 143 is semi-circular. A third tube 22 is provided at the bottom of the second tube 2, and the height and diameter of the third tube 22 correspond to the height and diameter of the third groove 13. The bottom of the third tube 22 is provided with a positioning element 3, which is plate-shaped and corresponds to the inclined surface 141. The end face of the positioning element 3 is provided with a second locking block 31, which corresponds to the first locking block 143. When the third tube 22 is inserted into the third groove 13, the positioning element 3 first contacts the bottom of the third groove 13. Then, the second tube 2 is rotated so that the positioning element 3 corresponds to the fourth groove 14, until the second locking block 31 contacts the first locking block 143. At this time, the second tube 2 continues to move downward, and then continues to press down and rotate, thereby deforming the first plate 142 so that the first locking block 143 passes over the second locking block 31 until the two are in contact. The third tube 22 is staggered, at which point the bottom wall of the third tube 22 is in complete contact with the bottom of the third groove 13, and the first locking block 143 and the second locking block 31 are staggered to restrict the position of the third tube 22. A sealing element 131 is provided on the side wall of the third groove 13. The sealing element 131 is a sealing strip. A first clamping plate 42 is provided on the first support member 41, and a second clamping plate 43 is rotatably connected to the first support member 41. Both the first clamping plate 42 and the second clamping plate 43 are semi-circular in shape, and the first clamping plate 42 and the second clamping plate 43 form a complete arc. A limiting element 44 is provided on the end face of the first clamping plate 42. The locking part of the limiting element 44 is elastic. The second clamping plate 43 is also provided with a limiter 44. The end face of plate 43 is provided with a sixth groove 421, which corresponds to the limiting member 44. The side wall of the sixth groove 421 is provided with a fifth groove 12, which corresponds to the snap-fit of the limiting member 44. When the limiting member 44 is snapped into the fifth groove 12, the first clamping plate 42 and the second clamping plate 43 form a complete circle. When the locking part of the limiting member 44 corresponding to the fifth groove 12 is pressed, the limiting member 44 is disengaged from the sixth groove 421 until the locking device 4 is removed. This achieves quick disassembly of the two sets of pipes and sealing of the two sets of pipes. At the same time, there is no need to think about other devices such as guide rod alignment during assembly. This method is slow.
[0030] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.
[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A nozzle structure of a heat exchanger, characterized by, The utility model provides a pipe locking device, including first pipe (1), the second pipe (2) of detachable connection on first pipe (1), the positioning piece (3) of positioning second pipe (2) on first pipe (1) position and prevent the locking device (4) of leaving gap between first pipe (1) and second pipe (2), first pipe (1) is seted up with first slot (11), second pipe (2) is seted up with second slot (21), one end of locking device (4) is inserted into first slot (11), the other end of locking device (4) is inserted into second slot (21), the top surface of first pipe (1) is seted up with third slot (13), the bottom of third slot (13) is seted up with a plurality of fourth slot (14), the positioning piece (3) is arranged on second pipe (2) and the positioning piece (3) corresponds with fourth slot (14).
2. The tube sheet structure of a heat exchanger according to claim 1, wherein The bottom of fourth slot (14) is seted up with inclined plane (141), the sidewall of fourth slot (14) is provided with first plate (142), first plate (142) is provided with first clamping block (143), the bottom of positioning piece (3) corresponds with inclined plane (141) and positioning piece (3) is provided with second clamping block (31) towards first plate (142), first clamping block (143) and second clamping block (31) are staggered and clamped each other.
3. The tube sheet structure of a heat exchanger according to claim 1, wherein The bottom of second pipe (2) is provided with third pipe (22), and the third pipe (22) corresponds to the third slot (13).
4. The tube sheet structure of a heat exchanger according to claim 1, wherein The sidewall of the third slot (13) is provided with a sealing member (131).
5. The tube sheet structure of a heat exchanger according to claim 1, wherein The locking device (4) comprises a first support (41), a first clamping plate (42) arranged on the first support (41), a second clamping plate (43) rotatable on the first support (41), and a limiting member (44) for fixing the first clamping plate (42) and the second clamping plate (43). The first clamping plate (42), the second clamping plate (43), and the limiting member (44) are arranged at both upper and lower ends of the first support (41). The end surface of the second clamping plate (43) is provided with the limiting member (44). The end surface of the first clamping plate (42) is provided with a sixth slot (421). The sidewall of the sixth slot (421) is provided with a fifth slot (12). The limiting member (44) is inserted into the sixth slot (421). The clamping portion of the limiting member (44) is elastic. The fifth slot (12) corresponds to the clamping portion of the limiting member (44). When the clamping portion of the limiting member (44) corresponding to the fifth slot (12) is pressed, the limiting member (44) is separated from the sixth slot (421) until the locking device (4) is removed.
6. The tube sheet structure of a heat exchanger according to claim 5, wherein The first clamping plate (42) and the second clamping plate (43) are both provided with chamfers.