Tubular heat exchanger

Abstract

The utility model discloses a tubular heat exchanger which comprises a base, a heat exchanger body and a clamping and fixing assembly, fixing frames are arranged on the two sides of the upper end of the base, a bracket is rotationally arranged in the middle of the base, the heat exchanger body is installed on the bracket and located in the fixing frames, and the clamping and fixing assembly is arranged on the fixing frames. The left end and the right end of the heat exchanger body are sleeved with the end covers in a sealed mode respectively, the clamping and fixing assembly fixes the end covers and the heat exchanger body, and the clamping and fixing assembly comprises a two-way lead screw, a positive and negative rotation motor and a fixing and clamping frame. The utility model relates to the technical field of heat exchangers, in particular to a shell-and-tube heat exchanger which is good in fixing effect and convenient to disassemble and assemble, and the shell-and-tube heat exchanger can be conveniently and rapidly disassembled and assembled through the device so as to improve the maintenance efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a shell and tube heat exchanger. Background Technique

[0002] The shell and tube heat exchanger is a common heat exchanger, which is widely used in the chemical industry for heat conversion. During the long-term use of the shell and tube heat exchanger, it is necessary to disassemble and maintain the shell and tube heat exchanger. However, during the disassembly process of the existing shell and tube heat exchangers, most of them use tools to disassemble the shell and tube heat exchanger and maintain its interior. The disassembly and assembly process of the heat exchanger is relatively complex, making it difficult to quickly disassemble and assemble it. The disassembly and assembly process is relatively slow, and the disassembly process is cumbersome, which affects the repair and maintenance of the shell and tube heat exchanger. Therefore, improvements are needed for existing problems. Content of the Utility Model

[0003] In view of the above situation, in order to overcome the current technical defects, the utility model provides a shell and tube heat exchanger with good fixing effect and convenient disassembly and assembly. Through this device, the shell and tube heat exchanger can be conveniently disassembled and assembled quickly to improve the maintenance efficiency.

[0004] The technical solution adopted by the utility model is as follows: The shell and tube heat exchanger proposed in this scheme includes a base, a heat exchanger main body, and a clamping and fixing component. Fixed frames are provided on both sides of the upper end of the base. A support seat is rotatably provided in the middle of the base. The heat exchanger main body is installed on the support seat and located inside the fixed frames. The clamping and fixing component is provided on the fixed frames. End covers are hermetically sleeved on the left and right ends of the heat exchanger main body respectively. The clamping and fixing component fixes the end covers and the heat exchanger main body. The clamping and fixing component includes a bidirectional lead screw, a forward and reverse motor, and a fixed clamping frame. A lifting frame is slidably provided on the fixed frame. The bidirectional lead screw is rotatably provided in the middle of the lower part of the lifting frame. The forward and reverse motor is provided on one side of the lower end of the lifting frame. The output shaft of the forward and reverse motor is connected to one end of the bidirectional lead screw. Threaded seats are symmetrically threadedly connected to both ends of the bidirectional lead screw. The upper end of the threaded seat is in sliding contact with the bottom wall of the lower part of the lifting frame. The fixed clamping frame is provided at the lower end of the threaded seat. The fixed clamping frame clamps and fixes the end cover. An installation frame is provided at the lower end of the lifting frame. An arc-shaped protection plate for protecting the top of the heat exchanger main body is provided on the installation frame.

[0005] In order to facilitate the lifting of the clamping and fixing component, hydraulic lifting rods are provided at both ends of the base. The output shafts of the hydraulic lifting rods are connected to both ends of the bottom wall of the lower part of the lifting frame.

[0006] In order to improve the fixing effect between the heat exchanger main body and the end cover, a support disc is provided on the fixed clamping frame. A plurality of groups of guide rods are slidably arranged at intervals on the support disc. An arc-shaped limiting clamping plate is provided at one end of the guide rod. A support spring is provided between the arc-shaped limiting clamping plate and the support disc.

[0007] In order to improve the sealing effect between the heat exchanger main body and the end cover, a sealing and fixing chuck is provided at the connection between the heat exchanger main body and the end cover.

[0008] The beneficial effects achieved by the present utility model with the above structure are as follows: The present utility model is a shell and tube heat exchanger, and its advantages are as follows: Through the provided clamping and fixing assembly, the end cover and the heat exchanger main body can be quickly installed and fixed, and it is convenient for disassembly and assembly, so as to improve the flexibility and convenience of maintaining the heat exchanger main body; Through the provided rotatable support base, the direction of the heat exchanger main body can be adjusted, so as to facilitate turning when maintaining the heat exchanger main body; Under the lifting movement of the hydraulic lifting rod, the arc-shaped protective plate can move downward accordingly, and with the cooperation of the support base, the heat exchanger main body is limited and fixed, further improving the stability of the installation of the heat exchanger main body. Description of the Drawings

[0009] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0010] Figure 1 is a three-dimensional structural view of a shell and tube heat exchanger of the present utility model Figure 1 ;

[0011] Figure 2 is a three-dimensional structural view of a shell and tube heat exchanger of the present utility model Figure 2 ;

[0012] Figure 3 is a three-dimensional schematic view of the hanger clamping and fixing assembly of a shell and tube heat exchanger of the present utility model;

[0013] Figure 4 is a plan view of the hanger clamping and fixing assembly of a shell and tube heat exchanger of the present utility model.

[0014] Among them, 1. Base, 2. Heat exchanger main body, 3. Clamping and fixing assembly, 4. Fixed frame, 5. Support base, 6. End cover, 7. End cover, 8. Forward and reverse motor, 9. Fixed clamping frame, 10. Lifting frame, 11. Threaded seat, 12. Mounting frame, 13. Arc-shaped protective plate, 14. Hydraulic lifting rod, 15. Support plate, 16. Guide rod, 17. Arc-shaped limit clamping plate, 18. Support spring, 19. Sealing and fixing chuck. Detailed Embodiments

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0016] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0017] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, the technical solution adopted by the present utility model is as follows: The shell-and-tube heat exchanger proposed in this solution includes a base 1, a heat exchanger main body 2 and a clamping and fixing assembly 3. Fixed frames 4 are provided on both sides of the upper end of the base 1, and a support base 5 is rotatably provided in the middle of the base 1. The heat exchanger main body 2 is installed on the support base 5 and located within the fixed frames 4. The clamping and fixing assembly 3 is provided on the fixed frames 4. End caps 6 are hermetically sleeved on the left and right ends of the heat exchanger main body 2 respectively. A sealing and fixing chuck 19 is provided at the connection between the heat exchanger main body 2 and the end caps 6. The clamping and fixing assembly 3 fixes the end caps 6 and the heat exchanger main body 2. The clamping and fixing assembly 3 includes a bidirectional lead screw 7, a forward and reverse motor 8 and a fixed clamping frame 9. A lifting frame 10 is slidably provided on the fixed frame 4. Hydraulic lifting rods 14 are provided at both ends of the base 1, and the output shafts of the hydraulic lifting rods 14 are connected to both ends of the lower bottom wall of the lifting frame 10. The bidirectional lead screw 7 is rotatably provided in the middle of the lower part of the lifting frame 10. The forward and reverse motor 8 is provided on one side of the lower end of the lifting frame 10, and the output shaft of the forward and reverse motor 8 is connected to one end of the bidirectional lead screw 7. Threaded seats 11 are symmetrically and threadedly connected to both ends of the bidirectional lead screw 7. The upper ends of the threaded seats 11 are in sliding contact with the lower bottom wall of the lifting frame 10. The fixed clamping frame 9 is provided at the lower end of the threaded seat 11. The fixed clamping frame 9 clamps and fixes the end caps 6. An installation frame 12 is provided at the lower end of the lifting frame 10, and an arc-shaped protection plate 13 for protecting the top of the heat exchanger main body 2 is provided on the installation frame 12.

[0018] As Figure 4 shown, a support disk 15 is provided on the fixed clamping frame 9. A plurality of groups of guide rods 16 are slidably provided on the support disk 15 at intervals. An arc-shaped limit clamping plate 17 is provided at one end of the guide rod 16. A support spring 18 is provided between the arc-shaped limit clamping plate 17 and the support disk 15.

[0019] During specific use, place the heat exchanger body 2 on the base 1 and support it through the support base 5. Install the end covers 6 on both sides of the heat exchanger body 2 respectively. Start the hydraulic lifting rod 14 to drive the lifting frame 10 to move downward, so that the arc-shaped protective plate 13 moves to the position of the end cover 6. Start the forward and reverse motor 8 to drive the bidirectional lead screw 7 to rotate. The bidirectional lead screw 7 then drives the fixed clamping frame 9 to move towards each other through the threaded seat 11, so that the arc-shaped limiting clamping plate 17 fixes and limits the heat exchanger body 2 and the end covers 6 installed at both ends. Driving the forward and reverse motor 8 in the reverse direction can conveniently and quickly release the limit fixation of the arc-shaped limiting clamping plate 17 on the end cover 6, so as to facilitate the disassembly and maintenance of the heat exchanger body 2;

[0020] Through the sealing and fixing chuck 19 between the heat exchanger body 2 and the end cover 6, the installation sealing tightness of the heat exchanger body 2 can be further improved;

[0021] By setting the rotatable support base 5, the direction of the heat exchanger body 2 can be adjusted, so as to facilitate the turning and moving during the maintenance of the heat exchanger body 2;

[0022] Under the lifting movement of the hydraulic lifting rod 14, the heat exchanger body 2 can be limited and fixed through the cooperation of the set arc-shaped protective plate 13 and the support base 5, further improving the stability of the heat exchanger body 2.

[0023] It should be noted that in this article, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, material or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, material or device.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shell and tube heat exchanger, comprising a base and a heat exchanger body, characterized in that: It also includes a clamping and fixing component. Fixed frames are provided on both sides of the upper end of the base. A bracket is rotatably provided in the middle of the base. The heat exchanger body is installed on the bracket and located in the fixed frame. The clamping and fixing component is arranged on the fixed frame. The left and right ends of the heat exchanger body are respectively sealed with end covers. The clamping and fixing component fixes the end covers and the heat exchanger body.

2. A shell and tube heat exchanger according to claim 1, characterized in that: The clamping and fixing assembly includes a bidirectional screw, a forward and reverse motor and a fixed clamping frame, a lifting frame is slidably provided on the fixed frame, the bidirectional screw is rotatably provided at the lower middle part of the lifting frame, the forward and reverse motor is provided at one side of the lower end of the lifting frame, the output shaft of the forward and reverse motor is connected to one end of the bidirectional screw, the two ends of the bidirectional screw are symmetrically threaded with threaded seats, the upper end of the threaded seat is in sliding contact with the lower bottom wall of the lifting frame, the fixed clamping frame is provided at the lower end of the threaded seat, and the fixed clamping frame clamps and fixes the end cover.

3. A shell and tube heat exchanger according to claim 2, characterized in that: A mounting frame is provided at the lower end of the lifting frame, and an arc-shaped protective plate for protecting the top of the heat exchanger body is provided on the mounting frame.

4. A shell and tube heat exchanger according to claim 3, characterized in that: Hydraulic lifting rods are arranged at two ends of the base, and the output shafts of the hydraulic lifting rods are connected to two ends of the lower bottom wall of the lifting frame.

5. A shell and tube heat exchanger according to claim 4, characterized in that: The fixed clamping frame is provided with a support plate, and a plurality of guide rods are slidably provided at intervals on the support plate. An arc-shaped limit clamping plate is provided at one end of the guide rod, and a support spring is provided between the arc-shaped limit clamping plate and the support plate.

6. A shell and tube heat exchanger according to claim 5, characterized in that: A sealing fixing chuck is provided at the connection between the heat exchanger body and the end cover.

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