Shell of shell and tube heat exchanger

Abstract

The utility model discloses a shell and tube heat exchanger shell which comprises a lower tube shell, an upper tube shell is installed at the upper end of the lower tube shell, a left end shell is installed at the left end of the lower tube shell and the left end of the upper tube shell, a right end shell is installed at the right end of the lower tube shell and the right end of the upper tube shell, and threaded sleeves are fixedly connected to the outer sides of the left end shell and the right end shell. The inner side of the threaded sleeve is spirally connected with a threaded rod, the servo motor drives the worm to rotate, the worm drives the worm gear to rotate, the worm gear further drives the threaded rod to rotate, the threaded rod drives the threaded sleeve to move, the threaded sleeve drives the left end shell and the right end shell to move, and after the left end shell and the right end shell are far away from each other, the left end shell and the right end shell are separated from each other. According to the shell-and-tube heat exchanger, the upper tube shell is taken down from the lower tube shell, so that the internal structure of the shell-and-tube heat exchanger is conveniently exposed, rapid maintenance and cleaning are facilitated, the complex operation of mounting a plurality of bolts is avoided when the tube shells are mounted and dismounted, and the use is more convenient.

Description

Technical Field

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

[0002] A shell-and-tube heat exchanger is a common heat exchange device that utilizes the heat exchange principle between a shell and a tube bundle to achieve heat transfer between two different fluids. In a shell-and-tube heat exchanger, one fluid flows inside the shell, while the other fluid flows inside the tube bundle. These two fluids exchange heat through the wall surface between the shell and the tube bundle, thereby achieving the purpose of heating or cooling.

[0003] In the patent with the publication number CN 215337870 U, a heat exchanger shell is disclosed, which includes a cylindrical body and two end plates hermetically connected to both ends of the cylindrical body: the edge of the end plate extends beyond or is flush with the opening edge of the end of the cylindrical body, and the lower end of the end plate is turned outward to form a lower bending part, and the lower bending part serves as a support foot. In this solution, the end plate directly forms the support foot through bending, and the support foot connected to the cylindrical body is cancelled: it has the advantages of simplified structure and reduced cost.

[0004] The above heat exchanger shell only improves the lower support to fixed sides, but fails to solve the problem that the shell-and-tube heat exchanger uses a number of bolts to fix two end covers, making it difficult to disassemble and install. The cylindrical structure also requires more processes in production, resulting in high production costs.

[0005] In view of the problems in the related art, no effective solution has been proposed yet. Content of the Utility Model

[0006] In view of the problems in the related art, the utility model proposes a shell of a shell-and-tube heat exchanger to overcome the above-mentioned technical problems existing in the existing related art.

[0007] For this reason, the specific technical solution adopted by the utility model is as follows:

[0008] A shell of a shell-and-tube heat exchanger includes a lower tube shell, an upper tube shell is installed at the upper end of the lower tube shell, a left end shell is installed at the left ends of the lower tube shell and the upper tube shell, a right end shell is installed at the right ends of the lower tube shell and the upper tube shell, a threaded sleeve is fixedly connected to the outside of the left end shell and the right end shell, a threaded rod is spirally connected to the inside of the threaded sleeve, a bracket is fixedly connected to the bottom end of the lower tube shell, opposite threads are provided on the threaded rod, the opposite threads on the threaded rod are horizontally symmetrically arranged, a worm gear is fixedly installed at the right end of the threaded rod, a worm is meshed with the outside of the worm gear, and a servo motor is installed at the front end of the worm.

[0009] As a further solution of the present utility model, lower side plates are fixedly connected to the front and rear ends of the lower shell, and upper side plates are fixedly connected to the front and rear ends of the upper shell.

[0010] As a further solution of the present utility model, sealing strip installation grooves are provided on the inner sides of the lower side plates and the upper side plates, and sealing strips are installed on the inner sides of the sealing strip installation grooves.

[0011] As a further solution of the present utility model, positioning cylinders are fixedly connected to the left and right ends of the lower shell and the upper shell, circular holes are provided on the inner sides of the edges of the left end shell and the right end shell, and the left end shell and the right end shell are both slidably connected to the positioning cylinders.

[0012] As a further solution of the present utility model, there are two groups of front and rear threaded rods, a fixed shell is rotatably installed on the outer side of the worm gear, and the servo motor is fixedly connected to the fixed shell.

[0013] The beneficial effects of the present utility model are as follows:

[0014] In the present utility model, through the arrangement of the lower shell, upper shell, left end shell, right end shell, threaded sleeve, threaded rod, etc., the servo motor drives the worm to rotate, the worm drives the worm gear to rotate, the worm gear then drives the threaded rod to rotate, the threaded rod drives the threaded sleeve to move, and the threaded sleeve drives the left end shell and the right end shell to move. After the left end shell and the right end shell move away from each other, the upper shell is removed from the lower shell, so as to facilitate exposing the internal structure of the shell-and-tube heat exchanger, facilitating rapid maintenance and cleaning. Secondly, when installing and disassembling the shell, the complex operation of installing a number of bolts is also avoided, making it more convenient to use, and the production cost is reduced compared with the cylindrical structure for the two semi-circular shells. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is an overall structural schematic diagram of a shell-and-tube heat exchanger shell according to an embodiment of the present utility model;

[0017] Figure 2 is an overall top view of a shell-and-tube heat exchanger shell according to an embodiment of the present utility model;

[0018] Figure 3 is an installation structural schematic diagram of a sealing strip and a positioning cylinder of a shell-and-tube heat exchanger shell according to an embodiment of the present utility model;

[0019] Figure 4 It is a schematic diagram of the position structure of the sealing strip installation groove of the shell of a shell-and-tube heat exchanger according to an embodiment of the present utility model;

[0020] Figure 5 It is a schematic diagram of the installation structure of the worm wheel, worm, threaded rod and threaded sleeve of the shell of a shell-and-tube heat exchanger according to an embodiment of the present utility model.

[0021] In the figure:

[0022] 1. Lower shell; 2. Upper shell; 3. Lower side plate; 4. Upper side plate; 5. Sealing strip installation groove; 6. Sealing strip; 7. Positioning cylinder; 8. Left end shell; 9. Right end shell; 10. Threaded sleeve; 11. Threaded rod; 12. Positioning sleeve; 13. Bracket; 14. Worm wheel; 15. Worm; 16. Servo motor; 17. Fixed shell. Specific embodiments

[0023] To further illustrate the embodiments, the present utility model provides accompanying drawings. These drawings are part of the disclosure of the present utility model, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present utility model, a shell of a shell-and-tube heat exchanger is provided.

[0025] Please refer to the attached specification Figures 1-5 , a shell of a shell-and-tube heat exchanger according to an embodiment of the present utility model includes a lower shell 1, an upper shell 2 is installed at the upper end of the lower shell 1, a left end shell 8 is installed at the left ends of the lower shell 1 and the upper shell 2, a right end shell 9 is installed at the right ends of the lower shell 1 and the upper shell 2, a threaded sleeve 10 is fixedly connected to the outer sides of the left end shell 8 and the right end shell 9, a threaded rod 11 is spirally connected to the inner side of the threaded sleeve 10, and a bracket 13 is fixedly connected to the bottom end of the lower shell 1.

[0026] When this device is in use, the servo motor 16 drives the worm 15 to rotate. The worm 15 drives the worm gear 14 to rotate, and the worm gear 14 then drives the threaded rod 11 to rotate. The threaded rod 11 drives the threaded sleeve 10 to move. The threaded sleeve 10 drives the left end housing 8 and the right end housing 9 to move. After the left end housing 8 and the right end housing 9 move away from each other, the upper tube housing 2 is removed from the lower tube housing 1, so as to facilitate exposing the internal structure of the shell-and-tube heat exchanger, which is convenient for quick maintenance and cleaning. When closing, the upper tube housing 2 is attached to and pressed downward against the lower tube housing 1, so that the positioning cylinder 7 on the upper tube housing 2 is aligned with the round hole in the left end housing 8 or the right end housing 9. Under the action of the threaded rod 11, the threaded sleeve 10 is driven to make the left end housing 8, the right end housing 9, the upper tube housing 2, and the lower tube housing 1 form a sealed whole. Compared with the traditional flange or bolt installation, this installation method is faster.

[0027] In one embodiment, please refer to the attached drawings of the specification Figures 1-5 As a further solution of the present utility model, lower side plates 3 are fixedly connected to the front and rear ends of the lower tube housing 1, upper side plates 4 are fixedly connected to the front and rear ends of the upper tube housing 2, sealing strip installation grooves 5 are provided on the inner sides of the lower side plates 3 and the upper side plates 4, and sealing strips 6 are installed inside the sealing strip installation grooves 5.

[0028] After the lower side plates 3 on the lower tube housing 1 are attached to the upper side plates 4 on the upper tube housing 2, the sealing strip 6 therein can improve the sealing performance and prevent the leakage of the heat exchanger liquid.

[0029] In another embodiment, please refer to the attached drawings of the specification Figures 1-5 As a further solution of the present utility model, positioning cylinders 7 are fixedly connected to the left and right ends of the lower tube housing 1 and the upper tube housing 2, round holes are provided on the inner sides of the edges of the left end housing 8 and the right end housing 9, and the left end housing 8 and the right end housing 9 are both slidably connected to the positioning cylinders 7.

[0030] By providing the positioning cylinders 7, the upper tube housing 2 can be prevented from being skewed during installation.

[0031] In one embodiment, please refer to the attached drawings of the specification Figures 1-5 As a further solution of the present utility model, opposite threads are provided on the threaded rod 11, and the opposite threads on the threaded rod 11 are horizontally symmetrically arranged.

[0032] By providing opposite threads on the threaded rod 11, the threaded sleeve 10 can be made to move relatively, and then the left end housing 8 and the right end housing 9 can be driven to approach or move away from each other.

[0033] In another embodiment, please refer to the attached drawings of the specification Figures 1-5, as a further solution of the present utility model, a worm gear 14 is fixedly installed at the right end of the threaded rod 11, a worm 15 is meshed and connected to the outside of the worm gear 14, and a servo motor 16 is installed at the front end of the worm 15.

[0034] The worm 15 is driven to rotate by the servo motor 16, and the worm 15 then drives the worm gear 14 to rotate.

[0035] In one embodiment, please refer to the attached instruction manual Figures 1-5 , as a further solution of the present utility model, there are two sets of the threaded rods 11 arranged front and back, a fixed shell 17 is rotatably installed on the outside of the worm gear 14, and the servo motor 16 is fixedly connected to the fixed shell 17.

[0036] The fixed shell 17 enables the servo motor 16 and the worm 15 and the worm gear 14 therein to work stably.

[0037] During use, the worm 15 is driven to rotate by the servo motor 16, the worm 15 drives the worm gear 14 to rotate, the worm gear 14 then drives the threaded rod 11 to rotate, the threaded rod 11 drives the threaded sleeve 10 to move, and the threaded sleeve 10 drives the left end shell 8 and the right end shell 9 to move. After the left end shell 8 and the right end shell 9 move away from each other, the upper tube shell 2 is removed from the lower tube shell 1, so as to conveniently expose the internal structure of the shell-and-tube heat exchanger, facilitating quick maintenance and cleaning. When closing, the upper tube shell 2 is attached to the lower tube shell 1 and pressed downward, so that the positioning cylinder 7 on the upper tube shell 2 is aligned with the round hole in the left end shell 8 or the right end shell 9. Under the action of the threaded rod 11, the threaded sleeve 10 is driven to make the left end shell 8, the right end shell 9, the upper tube shell 2 and the lower tube shell 1 form a sealed whole. Compared with the traditional flange or bolt installation, this installation method is faster.

[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A shell and tube heat exchanger housing, comprising a lower tube shell (1), characterized in that: The upper end of the lower tube shell (1) is mounted with an upper tube shell (2), the left ends of the lower tube shell (1) and the upper tube shell (2) are mounted with a left end shell (8), the right ends of the lower tube shell (1) and the upper tube shell (2) are mounted with a right end shell (9), the outer sides of the left end shell (8) and the right end shell (9) are fixedly connected with a threaded sleeve (10), the inner side of the threaded sleeve (10) is spirally connected with a threaded rod (11), the bottom end of the lower tube shell (1) is fixedly connected with a bracket (13), the threaded rod (11) is provided with opposite threads, the opposite threads on the threaded rod (11) are horizontally symmetrically arranged, the right end of the threaded rod (11) is fixedly mounted with a worm wheel (14), the outer side of the worm wheel (14) is meshingly connected with a worm (15), and the front end of the worm (15) is mounted with a servo motor (16).

2. The shell and tube heat exchanger shell according to claim 1, characterized in that: The front and rear ends of the lower tube shell (1) are fixedly connected to a lower side plate (3), and the front and rear ends of the upper tube shell (2) are fixedly connected to an upper side plate (4).

3. The shell and tube heat exchanger shell according to claim 2, characterized in that: The inner sides of the lower side plate (3) and the upper side plate (4) are both provided with sealing strip installation grooves (5), and the inner sides of the sealing strip installation grooves (5) are provided with sealing strips (6).

4. The shell and tube heat exchanger housing according to claim 1, characterized in that: The left and right ends of the lower tube shell (1) and the upper tube shell (2) are fixedly connected with positioning cylinders (7), the inner sides of the edges of the left end shell (8) and the right end shell (9) are provided with circular holes, and the left end shell (8) and the right end shell (9) are slidably connected with the positioning cylinders (7).

5. The shell of a shell and tube heat exchanger according to claim 1, characterized in that: The threaded rod (11) is provided with two groups, front and rear, a fixed shell (17) is rotatably mounted on the outer side of the worm wheel (14), and the servo motor (16) is fixedly connected to the fixed shell (17).

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