Adjustable tubular heat exchanger
By introducing an adjustable connection mechanism and sealing system into the shell-and-tube heat exchanger, the problems of high installation difficulty and poor flexibility caused by fixed connecting pipes in the existing technology are solved, flexible adjustment of the connecting pipe angle and efficient sealing are achieved, and the adaptability and heat exchange efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202511041534.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2025-09-16
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The position and direction of the fluid connection pipes in existing shell-and-tube heat exchangers are fixed, resulting in high installation difficulty, increased costs, poor flexibility, and inability to adapt to diverse on-site layout requirements.
An adjustable shell-and-tube heat exchanger was designed. By setting up a heat exchange medium connection mechanism, utilizing a combination of a rotating drum, a fixed gear ring, and a movable gear ring, combined with magnetic and mechanical gear ring engagement, the angle of the connecting pipe can be flexibly adjusted, and the sealing is ensured by a rubber extrusion seal and an extrusion rod system.
It realizes flexible adjustment of the angle of connecting pipes, improves the adaptability and installation efficiency of the equipment, ensures sealing reliability, reduces friction damage, and improves heat exchange efficiency.
Smart Images
Figure CN120651029A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of shell and tube heat exchangers, in particular to an adjustable shell and tube heat exchanger. Background Art
[0002] As a highly efficient and mature heat exchange device, shell-and-tube heat exchangers are widely used in numerous industries, including petroleum, chemical, pharmaceutical, energy, and food processing, due to their compact structure, strong pressure-bearing capacity, high heat exchange efficiency, and ease of manufacturing and maintenance. Their basic structure typically consists of a shell, a heat exchange tube bundle housed within it, manifolds or end caps mounted at each end of the shell, and connections for introducing and removing shell-side and tube-side fluids, respectively.
[0003] In the prior art, the position and orientation of the fluid connection pipes (including the shell-side inlet / outlet and tube-side inlet / outlet) of a shell-and-tube heat exchanger are usually fixedly welded or rigidly connected to the shell or end cover with flanges. This fixed connection method has significant shortcomings in practical applications: During on-site installation, the position and orientation of heat exchangers are strictly restricted by the routing of process pipelines and spatial layout. When the pre-defined pipe interface locations do not match the orientation of the heat exchanger's connecting pipes, complex elbows and compensators or changes to the supporting structure are often required to accommodate them. This increases installation difficulty, time, and cost. Furthermore, the fixed connection orientation limits the flexibility of the heat exchanger's on-site layout, making it difficult to adapt to diverse installation scenarios.
[0004] Therefore, there is an urgent need to design a shell-and-tube heat exchanger with a reasonable structure and easy operation, so that the angle of its connecting pipes can be flexibly adjusted according to actual on-site needs, while ensuring that the connections have extremely high sealing reliability after adjustment and in long-term operation, so as to solve the above-mentioned problems existing in the installation of existing fixed heat exchangers. Summary of the Invention
[0005] In view of the deficiencies of the prior art, the present invention provides an adjustable shell-and-tube heat exchanger, which solves the problems raised by the above-mentioned background technology.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adjustable shell and tube heat exchanger, comprising a shell, the shell being sleeved with two heat exchange medium connecting mechanisms, the heat exchange medium connecting mechanism comprising a rotating drum, a connecting pipe being fixed on the outer wall of the rotating drum, movable grooves being provided at both ends of the rotating drum, an annular mounting groove being provided inside the movable groove, a fixed gear ring being fixed inside the annular mounting groove, a movable gear ring being provided inside the movable groove, flange rings being fixed on the outer wall of the shell on both sides of the rotating drum, a plurality of pushing bolts being screwed on the interior of the flange ring, a plurality of limiting rods being fixed on the side of the movable gear ring away from the fixed gear ring, the limiting rods passing through the flange ring, end covers being provided at both ends of the shell, a plurality of fixing bolts being screwed on the interior of the shell, a plurality of fixing holes being provided on the outer wall of the end cover, a plurality of heat exchange pipes being provided between the two end covers, a plurality of through holes being provided on the outer wall of the shell to adjust the angle of the connecting pipe, facilitate the connection of the connecting pipe and the reserved pipe, and be flexible and convenient to use.
[0007] Preferably, annular fixing grooves are provided on opposite sides of the fixed gear ring and the movable gear ring, and a magnetic ring is fixed inside the annular fixing groove. The two magnetic rings repel each other, and the hinges automatically separate the fixed gear ring and the movable gear ring without manual separation, thereby facilitating the rotation of the drum.
[0008] Preferably, the inner wall of the rotating drum is provided with two annular placement grooves, the inside of the annular placement grooves is provided with a rubber extrusion sealing ring, and the opposite sides of the two rubber extrusion sealing rings are provided with extrusion grooves, the interior of the rotating drum is slidably connected with a plurality of extrusion rods, the inside of the extrusion grooves is provided with an extrusion ring, the extrusion ring and the extrusion rod are fixedly connected, and a fixed ring is fixed on the inner side wall of the movable gear ring, and the extrusion ring squeezes the rubber extrusion sealing ring to expand outward, so that the outer surface of the shell and the inner surface of the annular prevention groove are in contact, thereby performing sealing and preventing leakage of the heat exchange medium.
[0009] Preferably, a compression spring is sleeved on the outer side of the extrusion rod, and a baffle is fixed to the end of the extrusion rod away from the extrusion ring. The baffle limits the compression spring, and the movement of the baffle will squeeze the compression spring. When the baffle has no pressure, the compression spring will push the baffle to move, and the baffle moves with the extrusion rod, and the extrusion rod moves with the extrusion ring, so that the extrusion ring no longer squeezes the rubber extrusion sealing ring, and the rubber extrusion sealing ring shrinks and does not contact the shell, and no friction is generated when the drum rotates.
[0010] Preferably, a plurality of spring slots are provided inside the movable slot, and the compression spring is located inside the spring slot. The spring slot can accommodate the compression spring to prevent the baffle from squeezing the compression spring and causing damage to the compression spring.
[0011] Preferably, annular grooves are provided on both the left and right sides of the inner wall of the shell, and a sealing rubber ring is provided inside the annular groove to seal both ends of the shell to prevent leakage of the heat exchange medium.
[0012] Preferably, a plurality of spoilers are provided inside the shell, and the plurality of heat exchange tubes pass through the plurality of spoilers respectively. When the cold heat exchange medium enters the inner cavity of the shell and flows through the plurality of spoilers, a circuitous path can be formed, thereby extending the residence time and enhancing turbulence, thereby improving the heat exchange efficiency. Beneficial effects
[0013] The present invention provides an adjustable shell-and-tube heat exchanger. Compared with the prior art, it has the following advantages: 1. The adjustable shell-and-tube heat exchanger is provided with a heat exchange medium connection mechanism and the rotating drum is rotated to adjust the angle of the connecting pipe. After the adjustment is completed, the pushing bolt is rotated to push the movable gear ring to move, and the movable gear ring is engaged with the fixed gear ring. The movable gear ring fixes the fixed gear ring and the rotating drum to limit rotation, thereby adjusting the angle of the connecting pipe and increasing the universality of the device.
[0014] 2. The adjustable shell-and-tube heat exchanger is provided with a fixed ring, a rubber extrusion sealing ring, an extrusion ring and an extrusion rod. When the movable gear ring moves, the movable gear ring will move with the fixed ring. The fixed ring must be in contact with the extrusion rod and then push the extrusion rod to move. The extrusion rod moves with the extrusion ring. The extrusion ring squeezes the rubber extrusion sealing ring. The rubber extrusion sealing ring expands outward, and the extrusion ring placement groove and the shell are sealed, thereby preventing the heat exchange medium from leaking. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic cross-sectional view of the present invention; Figure 3 Schematic diagram of the structure of the shell in the present invention; Figure 4 Schematic diagram of the structure of the heat exchange medium connection mechanism in the present invention; Figure 5 Schematic diagram of the cross-sectional structure of the heat exchange medium connection mechanism in the present invention; Figure 6 Schematic diagram of the structure of the fixed gear ring and the movable gear ring in the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at A in the middle; Figure 8 It is a structural schematic diagram of the rotary drum in the present invention.
[0016] In the figure: 1. end cover; 2. shell; 3. flange ring; 4. through hole; 5. heat exchange medium connection mechanism; 501. connecting pipe; 502. limit rod; 503. fixed ring; 504. movable gear ring; 505. rotating drum; 506. rubber extrusion sealing ring; 507. annular mounting groove; 508. movable groove; 509. extrusion groove; 510. fixed gear ring; 511. extrusion ring; 512. extrusion rod; 513. baffle; 514. compression spring; 515. spring groove; 516. magnetic ring; 517. annular fixing groove; 518. annular placement groove; 6. spoiler; 7. heat exchange tube; 8. fixing hole; 9. push bolt; 10. annular groove; 11. sealing rubber ring; 12. fixing bolt DETAILED DESCRIPTION
[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] See also Figures 1 to 8The present invention provides a technical solution: an adjustable shell and tube heat exchanger, comprising a shell 2, the shell 2 being provided with two heat exchange medium connection mechanisms 5, the heat exchange medium connection mechanism 5 comprising a rotating drum 505, the outer wall of which is fixed with a connecting pipe 501, movable grooves 508 being provided at both ends of the rotating drum 505, an annular mounting groove 507 being provided inside the movable groove 508, a fixed gear ring 510 being fixed inside the annular mounting groove 507, a movable gear ring 504 being provided inside the movable groove 508, and flanges being fixed on both sides of the outer wall of the shell 2 on both sides of the rotating drum 505. Ring 3, the interior of the flange ring 3 is screwed with multiple pushing bolts 9, and multiple limiting rods 502 are fixed on the side of the mobile gear ring 504 away from the fixed gear ring 510. The limiting rods 502 pass through the flange ring 3. End covers 1 are provided at both ends of the shell 2. Multiple fixing bolts 12 are screwed inside the shell 2. Multiple fixing holes 8 are opened on the outer wall of the end cover 1. Multiple heat exchange tubes 7 are provided between the two end covers 1. Multiple through holes 4 are opened on the outer wall of the shell 2. According to the usage, the rotating drum 505 is rotated to adjust the angle of the connecting pipe 501. After the adjustment is completed, the pushing bolts 9 are rotated to push The movable bolt 9 pushes the movable gear ring 504 to move, and the movable gear ring 504 is engaged with the fixed gear ring 510, and the movable gear ring 504 fixes the fixed gear ring 510 and the rotating drum 505 to limit rotation. In this way, the angle of the connecting pipe 501 can be adjusted to increase the universality of the device. A plurality of spoilers 6 are provided inside the shell 2, and a plurality of heat exchange tubes 7 pass through the plurality of spoilers 6 respectively. The cold heat exchange medium enters the inner cavity of the shell 2 from the connecting pipe 501 and flows through the plurality of spoilers 6 to form a circuitous path, thereby extending the residence time and enhancing turbulence, thereby improving the heat exchange efficiency. The inner wall of the shell 2 is provided on both sides. An annular groove 10 is provided, and a sealing rubber ring 11 is provided inside the annular groove 10, so that the connection between the end cover 1 and the shell 2 can be sealed to prevent leakage of the heat exchange medium. An annular fixing groove 517 is provided on the opposite sides of the fixed gear ring 510 and the movable gear ring 504. A magnetic ring 516 is fixed inside the annular fixing groove 517. The two magnetic rings 516 repel each other. After reversing the pushing bolt 9, the pushing bolt 9 no longer squeezes the movable gear ring 504, and the two magnetic rings 516 repel each other, so that the movable gear ring 504 and the fixed gear ring 510 are automatically separated, which facilitates the rotation of the rotating drum 505.
[0019] Furthermore, the inner wall of the rotating drum 505 is provided with two annular placement grooves 518, and the inside of the annular placement grooves 518 is provided with a rubber extrusion sealing ring 506, and the opposite sides of the two rubber extrusion sealing rings 506 are provided with extrusion grooves 509. The inside of the rotating drum 505 is slidably connected with a plurality of extrusion rods 512, and the inside of the extrusion grooves 509 is provided with an extrusion ring 511. The extrusion ring 511 and the extrusion rod 512 are fixedly connected, and the inner wall of the movable gear ring 504 is fixed with a fixed ring 503. When the movable gear ring 504 moves, the movable gear ring 504 will move with the fixed ring 503, and the fixed ring 503 moves and contacts the baffle 513, and then pushes the baffle 513 and the extrusion rod 512 to move. The extrusion rod 512 moves with the extrusion ring 511, and the extrusion ring 511 squeezes the rubber extrusion sealing ring 506. The rubber extrusion sealing ring 506 expands outward and fits the annular placement groove 518 and the shell 2 for sealing. The outer side of the extrusion rod 512 is provided with a compression spring 51 The cam 514 is pressed against the bottom of the cylinder 505 and the cam 516 is pressed against the top of the cylinder 505. The cam 514 is pressed against the bottom of the cylinder 505 and the cam 516 is pressed against the top of the cylinder 505.
[0020] During operation, according to the on-site pipeline layout, the outer wall of the rotating drum 505 is rotated by holding it, driving the connecting pipe 501 to rotate synchronously to the target angle. At this time, the fixed gear ring 510 and the movable gear ring 504 are in a separated state and supported by the repulsive force of the magnetic ring 516, so that the angle of the connecting pipe 501 can be adjusted. After the adjustment is completed, the pushing bolt 9 is rotated to push the movable gear ring 504 to move, and the movable gear ring 504 and the fixed gear ring 510 are engaged and connected. The movable gear ring 504 fixes the fixed gear ring 510 and the rotating drum 505, limiting rotation. When the movable gear ring 504 moves, the movable gear ring 504 will move with the fixed ring 503, and the fixed ring 503 will move. The baffle 513 is moved and contacts the baffle 513, and then pushes the baffle 513 and the extrusion rod 512 to move. The extrusion rod 512 moves with the extrusion ring 511, and the extrusion ring 511 squeezes the rubber extrusion sealing ring 506. The rubber extrusion sealing ring 506 expands outward and fits with the annular placement groove 518 and the shell 2 for sealing. This can prevent the heat exchange medium from leaking out. Then, the connecting pipe 501 and the end cover 1 are both connected to the external pipe. The cold heat exchange medium enters the inner cavity of the shell 2 from the connecting pipe 501 with a well-adjusted angle and flows through multiple spoilers 6 to form a circuitous path. 1 and 1 , and the hot exchange medium enters from one end cover 1 and passes through the heat exchange tube 7 and then flows out from the other end cover 1. The two heat exchange media exchange heat through the heat exchange tube 7. If the position is changed later and the direction needs to be changed, the bolt 9 is pushed in reverse, and the two magnetic rings 516 repel each other, causing the movable gear ring 504 and the fixed gear ring 510 to separate. At the same time, the compression spring 514 pushes the baffle 513 to move, and the baffle 513 moves with the extrusion rod 512, and the extrusion rod 512 moves with the extrusion ring 511. The extrusion ring 511 no longer squeezes the rubber extrusion sealing ring 506. Then, the rotating drum 505 is rotated to adjust the position of the connecting pipe 501, and then the above fixing operation is repeated. In this way, the angle of the connecting pipe 501 can be adjusted. This design realizes the angle adjustment of the connecting pipe 501 through the innovative combination of magnetic assisted separation and mechanical gear ring locking; the extrusion rod 512-spring system is used to link the sealing ring to create an intelligent state switching between zero friction during adjustment and high pressure sealing during fixation. Compared with traditional welding fixed interfaces or solutions relying on compensators, the equipment's adaptability to complex pipelines is significantly improved.
[0021] At the same time, the contents not described in detail in this specification belong to the existing technology well known to those skilled in the art.
[0022] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.
[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. An adjustable shell-and-tube heat exchanger, comprising a shell (2), characterized in that: The shell (2) is provided with two heat exchange medium connection mechanisms (5), the heat exchange medium connection mechanisms (5) comprising a rotating drum (505), the outer wall of which is fixed with a connection pipe (501), both ends of the rotating drum (505) are provided with movable grooves (508), the interior of the movable groove (508) is provided with an annular mounting groove (507), the interior of the annular mounting groove (507) is fixed with a fixed gear ring (510), the interior of the movable groove (508) is provided with a movable gear ring (504), the outer wall of the shell (2) is located on both sides of the rotating drum (505), A flange ring (3) is fixed, and a plurality of pushing bolts (9) are screwed inside the flange ring (3); a plurality of limiting rods (502) are fixed on the side of the movable gear ring (504) away from the fixed gear ring (510), and the limiting rods (502) pass through the flange ring (3); end covers (1) are provided at both ends of the shell (2), and a plurality of fixing bolts (12) are screwed inside the shell (2); a plurality of fixing holes (8) are provided on the outer wall of the end cover (1), a plurality of heat exchange tubes (7) are provided between the two end covers (1), and a plurality of through holes (4) are provided on the outer wall of the shell (2).
2. The adjustable shell-and-tube heat exchanger according to claim 1, characterized in that: An annular fixing groove (517) is provided on opposite sides of the fixed gear ring (510) and the movable gear ring (504), and a magnetic ring (516) is fixed inside the annular fixing groove (517), and the two magnetic rings (516) repel each other.
3. The adjustable shell-and-tube heat exchanger according to claim 2, characterized in that: The inner side wall of the rotating drum (505) is provided with two annular placement grooves (518), the inside of the annular placement grooves (518) is provided with a rubber extrusion sealing ring (506), and the opposite sides of the two rubber extrusion sealing rings (506) are provided with an extrusion groove (509), the inside of the rotating drum (505) is slidably connected with a plurality of extrusion rods (512), the inside of the extrusion groove (509) is provided with an extrusion ring (511), the extrusion ring (511) and the extrusion rod (512) are fixedly connected, and the inner side wall of the movable gear ring (504) is fixed with a fixed ring (503).
4. The adjustable shell-and-tube heat exchanger according to claim 3, characterized in that: A compression spring (514) is sleeved on the outer side of the extrusion rod (512), and a baffle (513) is fixed to one end of the extrusion rod (512) away from the extrusion ring (511).
5. The adjustable shell-and-tube heat exchanger according to claim 4, characterized in that: A plurality of spring slots (515) are provided inside the movable slot (508), and the compression spring (514) is located inside the spring slots (515).
6. The adjustable shell-and-tube heat exchanger according to claim 5, characterized in that: Annular grooves (10) are provided on both the left and right sides of the inner side wall of the housing (2), and a sealing rubber ring (11) is provided inside the annular groove (10).
7. The adjustable shell-and-tube heat exchanger according to claim 6, characterized in that: A plurality of spoilers (6) are provided inside the shell (2), and the plurality of heat exchange tubes (7) pass through the plurality of spoilers (6) respectively.