Internal supporting structure of heat exchanger

Abstract

An internal supporting structure of a heat exchanger belongs to the technical field of heat exchangers, and aims to solve the problem that the internal supporting structure of the heat exchanger cannot solve thermal stress caused by asynchronous thermal expansion of a cylinder body and the supporting structure, the internal supporting structure comprises two side support assemblies and Z supporting clamping positions, and Z is a positive integer. The Z supporting clamping positions are sequentially arranged in the barrel body in the length extending direction of the heat exchanger, the two side support assemblies are oppositely arranged on the two sides of the Z supporting clamping positions, the two side support assemblies and the Z supporting clamping positions are welded to form a supporting main frame body, and four steel angles are arranged on the inner ring wall of the barrel body in the circumferential direction. The length extending direction of each steel angle is the same as the axis extending direction of the cylinder body, each steel angle is fixedly welded to the cylinder body, four roller assemblies are arranged on the supporting main frame body, each roller assembly corresponds to one steel angle, and the supporting main frame body is supported on the four steel angles located in the cylinder body through the four roller assemblies. The internal supporting structure is mainly used for the heat exchanger.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchangers, and in particular relates to an internal supporting structure of a heat exchanger. Background Art

[0002] As a heat exchanger different from the U-tube structure, the serpentine tube heat exchanger can better meet the needs of high-parameter and large-capacity units, and can meet the peak load operation and variable load operation of the units. Its internal structure is also quite different from the common U-tube heat exchanger, so there are many difficulties in the equipment manufacturing process.

[0003] The overall internal parts of the serpentine heat exchanger need to be supported. The current internal parts support structure of the heat exchanger is composed of a frame, a side support plate, a support rod and a partition plate. The heat exchange tubes are inserted layer by layer to form a heat exchange tube group, and multiple frames are connected to form a support fixed structure. The existing internal parts support structure of the heat exchanger can ensure good support strength, but it cannot solve the thermal stress problem caused by the asynchronous thermal expansion of the tube body and the support structure, and the assembly is relatively difficult, which affects the installation efficiency of the internal parts support of the heat exchanger in actual work. Therefore, it is in line with practical needs to develop a new internal support structure of the heat exchanger to solve the above problems. Summary of the invention

[0004] The present invention aims to solve the problem that the internal support structure of the heat exchanger cannot solve the thermal stress problem caused by the asynchronous thermal expansion of the barrel and the support structure; and further provides an internal support structure of the heat exchanger;

[0005] A heat exchanger internal support structure, the internal support structure comprises two side support assemblies and Z support clamps, Z is a positive integer, the Z support clamps are sequentially arranged in the barrel along the length extension direction of the heat exchanger, the two side support assemblies are relatively arranged on both sides of the Z support clamps, and the two side support assemblies and the Z support clamps are welded to form a support main frame, four angle steels are arranged on the inner ring wall of the barrel along the circumferential direction, and the length extension direction of each angle steel is the same as the axis extension direction of the barrel, each angle steel is welded and fixed to the barrel, four roller assemblies are arranged on the support main frame, and each roller assembly is arranged corresponding to an angle steel, and the support main frame is supported on the four angle steels located in the barrel through the four roller assemblies;

[0006] Further, the side support assembly includes two support plates, N-1 transverse plate groups and N vertical plates, N is a positive integer, the two support plates are arranged parallel to each other in the upper and lower directions, and the length extension direction of each support plate is the same as the axial direction of the cylinder body, the N vertical plates are sequentially arranged between the two support plates along the axial direction of the cylinder body, and the two ends of each vertical plate are respectively welded and fixed to a support plate, a transverse plate group is provided between two adjacent vertical plates, and the two ends of each transverse plate group are respectively welded and fixed to an adjacent vertical plate;

[0007] Furthermore, the horizontal plate group includes two horizontal plates, and the two horizontal plates are arranged parallel to each other along the center line of the vertical plate in the length direction, and the two ends of each horizontal plate are respectively welded and fixed to an adjacent vertical plate;

[0008] Furthermore, the four roller assemblies are evenly divided into two roller assembly modules, each roller assembly module is arranged on the same side as a side bracket assembly, and the two roller assemblies in each roller assembly module are relatively arranged on the upper and lower sides of the corresponding side bracket assembly, one end of each roller assembly is fixedly connected to the side bracket assembly where it is located, and the other end of each roller assembly is fixedly connected to Z support positions;

[0009] Further, the roller assembly includes Z roller units, each roller unit is arranged corresponding to a support clamping position, one end of each roller unit is fixedly connected to the corresponding side bracket assembly, and the other end of each roller unit is fixedly connected to the corresponding support clamping position;

[0010] Further, the roller unit includes a roller fixing plate, two rollers and two rollers, the roller fixing plate is welded on a corresponding support clamping position, two No. 1 through holes are processed on the roller fixing plate, one end of each roller is inserted into a No. 1 through hole on the roller fixing plate and fixedly connected to the roller fixing plate, the roller is sleeved on the roller, and the roller is rotatably connected to the roller, and the other end of the roller is fixedly connected to the support plate in the corresponding side bracket assembly;

[0011] Furthermore, the support plate is an L-shaped plate, the vertical portion of the support plate is welded and fixed to the Z support positions, the other end of the roller is fixedly connected to the horizontal portion of the corresponding support plate, and the horizontal portion of the support plate is arranged parallel to the corresponding roller fixing plate;

[0012] Furthermore, a second through hole is processed on the horizontal part of the support plate at a position corresponding to each roller, and the other end of each roller is inserted into the corresponding second through hole and fixedly connected to the horizontal part of the support plate;

[0013] The beneficial effects of this application compared to the prior art are as follows:

[0014] The present application provides an internal support structure of a heat exchanger. Compared with the existing internal support structure of a heat exchanger, a combination of a support plate and a roller is used as the support part of the internal support structure that contacts the inner wall of the heat exchanger cylinder. The support plate is a flexible structure, and the two ends of the support plate are pressed and bent downward to form a bent plate structure to release the thermal stress generated by asynchronous thermal expansion. The roller and the angle steel are used for guided extrusion, which can effectively solve the problem of excessive local stress caused by rapid load changes. This structural design not only perfectly completes the task of supporting the internal parts of the heat exchanger, but also provides great convenience for the lifting and assembly of the pipe system in the subsequent processes during the manufacturing process, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic front view of the internal support structure of the heat exchanger described in this application;

[0016] Figure 2 A side cross-sectional schematic diagram of the internal support structure of the heat exchanger described in this application;

[0017] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4 It is a front view schematic diagram of the side bracket assembly in the internal support structure of the heat exchanger described in this application;

[0019] Figure 5 It is a side view schematic diagram of the support clamping position in the internal support structure of the heat exchanger described in this application;

[0020] Figure 6 for Figure 5 AA direction schematic diagram in;

[0021] Figure 7 This is a schematic diagram of the connection relationship between the angle steel and the cylinder body in this application;

[0022] In the figure, 1 is a roller, 2 is a side bracket assembly, 21 is a support plate, 22 is a horizontal plate, 23 is a vertical plate, 3 is a roller fixing plate, 4 is a roller, 5 is a support clamp, 51 is a vertical beam, 52 is a horizontal beam, 6 is an angle steel and 7 is a cylinder body. DETAILED DESCRIPTION

[0023] Specific implementation method 1: Combination Figures 1 to 7 To explain the present embodiment, an internal support structure of a heat exchanger is provided in the present embodiment, the internal support structure includes two side bracket assemblies 2 and Z support clamps 5, Z is a positive integer, the Z support clamps 5 are sequentially arranged in the cylinder body 7 along the length extension direction of the heat exchanger, the two side bracket assemblies 2 are relatively arranged on both sides of the Z support clamps 5, and the two side bracket assemblies 2 and the Z support clamps 5 are welded to form a supporting main frame, four angle steels 6 are circumferentially arranged on the inner ring wall of the cylinder body 7, and the length extension direction of each angle steel 6 is the same as the axial extension direction of the cylinder body 7, each angle steel 6 is welded and fixed to the cylinder body 7, four roller assemblies are arranged on the supporting main frame, and each roller assembly is arranged corresponding to an angle steel 6, and the supporting main frame is supported on the four angle steels 6 located in the cylinder body 7 through the four roller assemblies.

[0024] In this embodiment, the support clamp 5 is a main component for installing the heat exchange tube, which is mainly composed of two vertical beams 51 and multiple cross beams 52, wherein the two vertical beams 51 are arranged parallel to each other, and the multiple cross beams 52 are arranged between the two vertical beams 51, and the multiple cross beams 52 are arranged in sequence along the length extension direction of the vertical beams 51, wherein some cross beams 52 will be located exactly between the two vertical beams 51, and some cross beams 52 will be arranged higher than the vertical beams 51, and the outer sides of the two vertical beams 51 and the multiple cross beams 52 are wrapped with thin steel plates, and the thin steel plates are used to connect the vertical beams 51 to the horizontal beams 51. 51 and the crossbeam 52 are limited to form the overall shape of the support clamping position 5, the vertical beam 51 is welded and fixed to the corresponding crossbeam 52, the crossbeam 52 set higher than the vertical beam 51 is welded and fixed to the thin steel plate, and the gap between two adjacent crossbeams 52 is the insertion area of ​​the heat exchange tube, which is used to support and fix the heat exchange tube, and the two side bracket assemblies 2 are respectively arranged corresponding to the two vertical beams 51 in the support clamping position 5, and the side bracket assemblies 2 are welded and fixed to the corresponding vertical beams 51, and the width dimension of the side bracket assembly 2 is smaller than the height dimension of the vertical beam 51;

[0025] The four angle steels 6 are divided into two groups when arranged, wherein each group of angle steels 6 is arranged on the same side as a side bracket assembly 2 , and the arrangement spacing between two angle steels 6 in each group is the same as the width dimension of the side bracket assembly 2 .

[0026] Specific implementation method 2: Combination Figures 1 to 7 This embodiment is described. The difference between this embodiment and the first embodiment is that the side support assembly 2 includes two support plates 21, N-1 transverse plate groups and N vertical plates 23, N is a positive integer, the two support plates 21 are arranged parallel to each other, and the length extension direction of each support plate 21 is the same as the axial direction of the barrel 7, the N vertical plates 23 are arranged in sequence between the two support plates 21 along the axial direction of the barrel 7, and the two ends of each vertical plate 23 are respectively welded and fixed to a support plate 21, a transverse plate group is provided between two adjacent vertical plates 23, and the two ends of each transverse plate group are respectively welded and fixed to an adjacent vertical plate 23. Other components and connection methods are the same as those of the first embodiment.

[0027] Specific implementation method three: Combination Figures 1 to 7 This embodiment is described. The difference between this embodiment and the second embodiment is that the horizontal plate group includes two horizontal plates 22, and the two horizontal plates 22 are arranged parallel to each other along the center line of the length direction of the vertical plate 23, and the two ends of each horizontal plate 22 are respectively welded and fixed to an adjacent vertical plate 23. Other components and connection methods are the same as those of the second embodiment.

[0028] In combination with the description of the second and third specific embodiments, the support plate 21 is the main component for solving the problem of excessive local stress caused by rapid load changes. The support plate 21 itself is a flexible structure and is bent downward at both ends during arrangement to form a bent plate structure to release the thermal stress caused by asynchronous thermal expansion. The horizontal plate 22 and the vertical plate 23 play a supporting and reinforcing role, thereby ensuring the stability of the side bracket assembly 2 during operation.

[0029] Specific implementation method four: Combination Figures 1 to 7 This embodiment is described. The difference between this embodiment and the third embodiment is that the four roller assemblies are evenly divided into two roller assembly modules, each roller assembly module is arranged on the same side as a side bracket assembly 2, and the two roller assemblies in each roller assembly module are relatively arranged on the upper and lower sides of the corresponding side bracket assembly 2, one end of each roller assembly is fixedly connected to the side bracket assembly 2, and the other end of each roller assembly is fixedly connected to Z support clamps 5. Other components and connection methods are the same as those of the third embodiment.

[0030] Specific implementation method five: Combination Figures 1 to 7 This embodiment is described. The difference between this embodiment and the fourth embodiment is that the roller assembly includes Z roller units, each roller unit is arranged corresponding to a support clamping position 5, one end of each roller unit is fixedly connected to the corresponding side bracket assembly 2, and the other end of each roller unit is fixedly connected to the corresponding support clamping position 5. The other components and connection methods are the same as those of the fourth embodiment.

[0031] Specific implementation method six: Combination Figures 1 to 7 This embodiment is described. The difference between this embodiment and the fifth embodiment is that the roller unit includes a roller fixing plate 3, two rollers 1 and two rollers 4. The roller fixing plate 3 is welded to a corresponding support clamp 5. Two No. 1 through holes are processed on the roller fixing plate 3. One end of each roller 4 is inserted into a No. 1 through hole on the roller fixing plate 3 and fixedly connected to the roller fixing plate 3. The roller 1 is sleeved on the roller 4, and the roller 1 is rotatably connected to the roller 4. The other end of the roller 4 is fixedly connected to the support plate 21 in the corresponding side bracket assembly 2. The other components and connection methods are the same as those in the fifth embodiment.

[0032] Specific implementation method seven: Combination Figures 1 to 7 This embodiment is described. The difference between this embodiment and the sixth embodiment is that the vertical portion of the support plate 21 is welded and fixed to the Z support positions 5, the other end of the roller 4 is fixedly connected to the horizontal portion of the corresponding support plate 21, and the horizontal portion of the support plate 21 is arranged parallel to the corresponding roller fixing plate 3. The other components and connection methods are the same as those of the sixth embodiment.

[0033] Specific implementation method eight: Combination Figures 1 to 7This embodiment is described. The difference between this embodiment and the seventh embodiment is that a second through hole is processed on the horizontal part of the baffle plate 1 and the support plate 21 corresponding to each roller 4, and the other end of each roller 4 is inserted into the corresponding second through hole and fixedly connected to the horizontal part of the support plate 21. The other components and connection methods are the same as those of the seventh embodiment.

[0034] In combination with the description of specific embodiments five to eight, the roller 1 is a component that contacts the angle steel 6, which is located on the outside of the side bracket assembly 2 and the support clamp 5. The two ends of the roller 1 are limited by the roller fixing plate 3 and the support plate 21 to ensure the accuracy of the working position of the roller 1, wherein the roller fixing plate 3 is welded to the support clamp 5. In order to improve the welding accuracy between the roller fixing plate 3 and the support clamp 5 and to improve the supporting strength of the roller fixing plate 3, an I-beam is also arranged on the back side of the roller fixing plate 3. The I-beam is welded and fixed to the support clamp 5 and used to support the back side of the roller fixing plate 3. The design of the No. 1 through hole and the No. 2 through hole is to position the roller 4 to improve the installation accuracy of the roller 4. At the same time, when the end of the roller 4 extends to the corresponding through hole, the staff can avoid welding from one side of the roller 1, thereby preventing the roller 1 from affecting the welding work and facilitating the implementation of the welding work.

[0035] The present invention has been disclosed as above with preferred implementation cases, but it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent implementation cases with equivalent changes by using the above-disclosed structures and technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above implementation cases based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

[0036] How it works

[0037] When the present application is in use, firstly, an internal support structure is built outside the heat exchanger barrel, and the number and arrangement positions of the support clamps 5 are determined according to the length of the barrel 7 and the pre-designed spacing. After the arrangement positions of the support clamps 5 are determined, the pre-prepared side bracket assemblies 2 are welded to both sides of multiple support clamps 5 to form a supporting main frame. Two roller fixing plates 3 are welded on the vertical beam 51 in each support clamp 5, which ensures that each roller fixing plate 3 is arranged in parallel with the support plate 21 in the corresponding side bracket assembly 2, and each roller 1 is installed on a roller fixing plate 3 and a support plate 21 in the side bracket assembly 2 through a roller 4. Between the corresponding support plates 21, the internal support structure of the heat exchanger is assembled, and the internal support structure is pushed into the cylinder body 7 along the axial extension direction of the cylinder body 7, and the outer cylindrical surface of the roller 1 is ensured to contact the angle steel 6. The angle steel 6 acts as a pulley slide and also plays a restraining role. When the heat exchanger is working, the side bracket assembly 2 and the support clamping position 5 expand due to heat, so that the roller 1 is tightly squeezed on the angle steel 6. The end of the support plate 21 in the side bracket assembly 2 is designed to be bent downward to release the thermal stress caused by the asynchronous thermal expansion, which can effectively solve the thermal stress problem caused by the asynchronous thermal expansion of the cylinder body and the support structure.

Claims

1. A heat exchanger internal support structure, characterized in that: The internal support structure comprises two side support assemblies (2) and Z support clamps (5), wherein Z is a positive integer, and the Z support clamps (5) are sequentially arranged in the barrel (7) along the length extension direction of the heat exchanger, and the two side support assemblies (2) are relatively arranged on both sides of the Z support clamps (5), and the two side support assemblies (2) and the Z support clamps (5) are welded to form a support main frame, and four angle steels (6) are arranged on the inner ring wall of the barrel (7) along the circumferential direction, and the length extension direction of each angle steel (6) is the same as the axial extension direction of the barrel (7), and each angle steel (6) is welded and fixed to the barrel (7), and four roller assemblies are arranged on the support main frame, and each roller assembly is arranged corresponding to an angle steel (6), and the support main frame is supported on the four angle steels (6) located in the barrel (7) through the four roller assemblies.

2. The internal support structure of a heat exchanger according to claim 1, characterized in that: The side support assembly (2) comprises two support plates (21), N-1 transverse plate groups and N vertical plates (23), where N is a positive integer. The two support plates (21) are arranged parallel to each other in an upper and lower direction, and the length extension direction of each support plate (21) is the same as the axial direction of the cylinder body (7). The N vertical plates (23) are arranged in sequence between the two support plates (21) along the axial direction of the cylinder body (7), and the two ends of each vertical plate (23) are respectively welded and fixed to a support plate (21). A transverse plate group is provided between two adjacent vertical plates (23), and the two ends of each transverse plate group are respectively welded and fixed to an adjacent vertical plate (23).

3. The internal support structure of a heat exchanger according to claim 2, characterized in that: The transverse plate group comprises two transverse plates (22), and the two transverse plates (22) are arranged parallel to each other along the center line of the length direction of the vertical plate (23), and the two ends of each transverse plate (22) are respectively welded and fixed to an adjacent vertical plate (23).

4. The internal support structure of a heat exchanger according to claim 3, characterized in that: The four roller assemblies are evenly divided into two roller assembly modules, each roller assembly module is arranged on the same side as a side bracket assembly (2), and the two roller assemblies in each roller assembly module are relatively arranged on the upper and lower sides of the corresponding side bracket assembly (2), one end of each roller assembly is fixedly connected to the side bracket assembly (2) where it is located, and the other end of each roller assembly is fixedly connected to Z support clamps (5).

5. The internal support structure of a heat exchanger according to claim 4, characterized in that: The roller assembly comprises Z roller units, each roller unit is arranged corresponding to a support clamp (5), one end of each roller unit is fixedly connected to a corresponding side bracket assembly (2), and the other end of each roller unit is fixedly connected to a corresponding support clamp (5).

6. The internal support structure of a heat exchanger according to claim 5, characterized in that: The roller unit comprises a roller fixing plate (3), two rollers (1) and two rollers (4); the roller fixing plate (3) is welded to a corresponding support clamp (5); two No. 1 through holes are processed on the roller fixing plate (3); one end of each roller (4) is inserted into a No. 1 through hole on the roller fixing plate (3) and fixedly connected to the roller fixing plate (3); the roller (1) is sleeved on the roller (4), and the roller (1) is rotatably connected to the roller (4); the other end of the roller (4) is fixedly connected to a support plate (21) in a corresponding side bracket assembly (2).

7. The internal support structure of a heat exchanger according to claim 6, characterized in that: The support plate (21) is an L-shaped plate, the vertical portion of the support plate (21) is welded and fixed to the Z support clamps (5), the other end of the roller (4) is fixedly connected to the horizontal portion of the corresponding support plate (21), and the horizontal portion of the support plate (21) is arranged parallel to the corresponding roller fixing plate (3).

8. The internal support structure of a heat exchanger according to claim 1, characterized in that: A second through hole is processed on the horizontal portion of the support plate (21) at a position corresponding to each roller (4), and the other end of each roller (4) is inserted into the corresponding second through hole and fixedly connected to the horizontal portion of the support plate (21).

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