Large heat exchanger tool rack

Abstract

The invention provides a large heat exchanger tool rack, and belongs to the technical field of heat exchanger tools. A large heat exchanger tool rack comprises a platform frame, the platform frame comprises four stand columns, a cross beam is connected between every two adjacent stand columns, the upper end of the platform frame is fixedly connected with a table top, and the table top is provided with a matching hole matched with the outer diameter of a large heat exchanger in an inserted mode; the swing positioning mechanism is arranged below the table top, fixedly connected with the cross beam in the middle and used for clamping the large heat exchanger and adjusting the angle of the large heat exchanger; the bracket is arranged below the swing positioning mechanism, and the bracket is fixedly connected with the platform frame and used for bearing the large heat exchanger; through the swing positioning mechanism, angle adjustment of a large heat exchanger is achieved, the problem that large equipment is inconvenient to level is solved, stress is dispersed through the bracket, the bearing capacity is improved, and the problem that an existing tool rack cannot bear the large heat exchanger is solved.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger tooling technology, and more specifically to a large heat exchanger tooling stand. Background Technology

[0002] In the field of heavy chemical industry, ultra-large heat exchangers undertake the core function of heat exchange for high-temperature and high-pressure media. However, existing traditional tooling cannot meet the requirements, specifically in the following aspects.

[0003] 1. Existing tooling lacks an adjustable angle structure, making it difficult to compensate for gravitational deformation caused by large equipment and uneven terrain.

[0004] 2. Existing tooling lacks load-bearing capacity and cannot meet the load-bearing requirements of large heat exchangers. Summary of the Invention

[0005] To address the problems existing in the background art, the present invention proposes a large heat exchanger tooling frame.

[0006] The technical solution of this invention to solve the technical problem is as follows: A large heat exchanger tooling frame, comprising: The platform frame includes four columns, with crossbeams connecting adjacent columns. A platform is fixedly connected to the upper end of the platform frame, and mating holes adapted to the outer diameter of large heat exchangers are provided on the platform. A swing positioning mechanism is installed below the table surface. The swing positioning mechanism is fixedly connected to the crossbeam and is used to clamp large heat exchangers and can adjust the angle of large heat exchangers. The tube sheet support is located below the swing positioning mechanism and is fixedly connected to the platform frame to support large heat exchangers.

[0007] Preferably, the swing positioning mechanism includes three clamping rollers, a fixed bracket, and two symmetrically arranged movable brackets. One clamping roller is hinged to the fixed bracket, and the other two clamping rollers are respectively hinged to their corresponding movable brackets. All three are on the same horizontal plane, forming a clamping space to clamp the large heat exchanger.

[0008] Preferably, the movable bracket includes an electric push rod and two connecting rods; the cylinder end of the electric push rod is fixedly connected to the crossbeam; one end of the two connecting rods is hinged to each other, the non-hinged end of one connecting rod is hinged to the frame crossbeam, and the non-hinged end of the other connecting rod is hinged to the piston rod end of the electric push rod; the hinged ends of the two connecting rods are also hinged to clamping rollers; one end of the fixed bracket is fixedly connected to the frame crossbeam, and the other end is hinged to the clamping rollers.

[0009] Preferably, the clamping roller includes a roller and a shaft frame, the shaft frame being V-shaped; the two rollers are respectively rotatably mounted on two forks of the shaft frame, and the outer circumferential surfaces of the axes of the two rollers are distributed at obtuse angles, and together they make contact with the outer wall of the large heat exchanger.

[0010] Preferably, the bracket includes an upper first annular flange and a lower second annular flange, both of which are fitted into a large heat exchanger. Multiple support columns are connected below the first annular flange. The second annular flange is located within the space enclosed by the support columns and is connected to each of the support columns. Each support column is connected to a connecting column, which is connected to the platform frame.

[0011] Preferably, it also includes an upper frame, which is a frame structure with four railings surrounding the support pillars. The upper frame is fixedly connected to the upper surface of the platform and surrounds the outer perimeter of the large heat exchanger; the upper frame is also equipped with an openable and closable door.

[0012] Preferably, a wedge-shaped pad is provided between the bottom end of the support column and the ground; the inclined surface of the wedge-shaped pad fits into the bottom surface of the support column, and the bracket is leveled by adjusting the wedge-shaped pad.

[0013] Preferably, it also includes escalators, which are located on both sides below the platform and are fixedly connected to the platform.

[0014] Preferably, a limiting member is provided on the inner wall of the mating hole along the circumference. The limiting member includes a bent plate and a socket plate. The bent plate is detachably connected to the large heat exchanger, the socket plate is hinged to the platform, and the bent plate and the socket plate are slidably inserted into each other.

[0015] The above technical solution has the following advantages or beneficial effects: 1. This invention, through the synergistic effect of the movable and fixed supports of the swing positioning mechanism, can adjust the circumferential angle and verticality of large heat exchangers, compensate for deformation caused by the weight of the equipment, and adapt to support differences caused by uneven ground, thus solving the problems of difficulty in leveling large heat exchangers and inconvenience in positioning the angle.

[0016] 2. The present invention, through the three-dimensional structure of the bracket's double-layer annular flange and multiple support columns and connecting columns, disperses the force, which can distribute the weight of the large heat exchanger to the platform frame and the ground, avoiding local stress concentration, improving the load-bearing capacity and stability of the present invention, and solving the problem that existing tooling frames cannot support large heat exchangers.

[0017] 3. The present invention achieves levelness adjustment through the inclined surface of the wedge-shaped pad, eliminating the need for high-precision leveling of the installation ground. The levelness of the platform frame and large heat exchanger can be calibrated simply by adjusting the relative position of the wedge-shaped pad, reducing the requirements for the site foundation and improving the applicability of the present invention. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] Figure 1 This is a perspective view of an embodiment of the present invention.

[0020] Figure 2 This is a perspective view of the movable support of the present invention.

[0021] Figure 3 This is a perspective view of the fixing bracket of the present invention.

[0022] Figure 4 This is a perspective view of the bracket of the present invention.

[0023] Figure 5 This is a perspective view of the limiting component of the present invention.

[0024] Figure 6 This is a perspective view of the wedge-shaped pad of the present invention.

[0025] Figure 7 This is a top view of an embodiment of the present invention.

[0026] Figure 8 This is a partial view of the swing positioning mechanism of the present invention.

[0027] Explanation of reference numerals in the attached figures: 1. Platform frame; 2. Column; 3. Horizontal beam; 4. Tabletop; 5. Swing positioning mechanism; 6. Bracket; 7. Movable bracket; 8. Fixed bracket; 9. Electric push rod; 10. Connecting rod; 11. Clamping roller; 13. Roller; 14. First annular flange; 15. Second annular flange; 16. Support column; 17. Connecting column; 18. Wedge-shaped pad; 19. Ladder; 20. Upper frame; 21. Frame door; 22. Limiting component; 23. Bend plate; 24. Socket plate; 25. Mating hole; 26. Shaft bracket. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] like Figure 1 As shown in the figure, this embodiment proposes a large heat exchanger tooling frame, which mainly includes four parts: platform frame 1, upper frame 20, swing positioning mechanism 5, and bracket 6. The following is a detailed description of these parts: The platform frame 1 includes four columns 2, which are distributed at the four corners of a rectangle. Adjacent columns 2 are connected by crossbeams 3, and there are multiple crossbeams 3 between the columns 2. The upper end of the platform frame 1 is fixedly connected to a platform 4, which provides a platform for the maintenance and operation of large heat exchangers. The platform 4 has mating holes 25 that are adapted to the outer diameter of the large heat exchanger for insertion. The large heat exchanger is inserted into the mating holes 25. Based on the comprehensive consideration of lightweight and high strength, it was finally decided to use I-beams and angle steel as the main materials of the platform frame 1, and use angle steel and bolts for connection, which has the advantages of stable structure and easy installation and disassembly.

[0030] The large heat exchanger and the mating hole 25 are not in direct contact, such as... Figure 5 , Figure 7 As shown, a limiting member 22 is also provided on the inner wall of the circumferential hole 25. When the large heat exchanger shakes, it can not only maintain a certain amount of buffer space but also prevent the large heat exchanger from colliding with the platform frame 1. The limiting member 22 includes a bent plate 23 and a socket plate 24. The bent plate 23 is detachably connected to the large heat exchanger, and the socket plate 24 is hinged to the platform 4. The bent plate 23 and the socket plate 24 can be slidably inserted. The hinged and inserted structure provides three-dimensional buffering in the height and horizontal directions.

[0031] Around the mating hole 25, there is also an upper frame 20. The upper frame 20 is a frame structure with four railings surrounding the support column. The upper frame 20 is fixedly connected to the upper surface of the platform 4 and surrounds the outer perimeter of the large heat exchanger to ensure worker safety. The upper frame 20 is also equipped with an openable door 21 to facilitate the disassembly and assembly of the large heat exchanger and to facilitate personnel access. Since the invention is relatively high, a ladder 19 is also provided for easy maintenance. The ladder 19 is located on both sides below the platform 4 and is fixedly connected to the platform 4 to facilitate workers to go up and down the platform 4.

[0032] like Figure 8 As shown, the swing positioning mechanism 5 is set below the platform 4. The swing positioning mechanism 5 is fixedly connected to the crossbeam 3 in the middle. It is used to clamp the large heat exchanger and adjust the angle of the large heat exchanger. The adjustable angle clamping of the swing positioning mechanism 5 realizes the angle compensation of the large heat exchanger during the construction process due to uneven site, as well as the correction of the angle deviation caused by ground deformation and external force interference. It solves the problems of difficulty in leveling large heat exchangers and inconvenience in positioning the angle.

[0033] like Figure 2 , Figure 3As shown, the swing positioning mechanism 5 includes three clamping rollers 11, a fixed bracket 8, and two movable brackets 7. One clamping roller 11 is hinged to the fixed bracket 8 and can rotate freely around the hinge point. The other two clamping rollers 11 are respectively hinged to two symmetrically arranged movable brackets 7. The three are on the same horizontal plane, forming a clamping space to clamp the large heat exchanger. The two movable brackets 7 and one fixed bracket 8 are positioned at three points, which can adjust the vertical angle of the large heat exchanger while firmly clamping it.

[0034] The movable support 7 includes an electric push rod 9 and two connecting rods 10. The cylinder end of the electric push rod 9 is fixedly connected to the crossbeam 3. The power of the mechanism is provided by the electric push rod 9. By pushing and pulling the electric push rod 9, the connecting rods 10 are driven, thereby pushing the clamping rollers 11 to contact and separate from the large heat exchanger. This facilitates automated control and allows adjustment of the pressure and position of the clamping rollers 11 according to actual needs. One end of the two connecting rods 10 is hinged to each other, and the non-hinged end of one of the connecting rods 10 is hinged to the frame crossbeam 3. The non-hinged end of the other connecting rod 10 is hinged to the piston rod end of the electric push rod 9. The connecting rod 10 and the electric push rod 9 form a triangular connecting rod structure. The endpoints of the triangular structure, namely the hinged ends of the two connecting rods 10, can swing under the drive of the electric push rod 9. The hinged ends of the two connecting rods 10 are also hinged to clamping rollers 11, which are used to clamp large heat exchangers. One end of the fixed bracket 8 is fixedly connected to the frame beam 3, and the other end is hinged to the clamping roller 11. The fixed bracket 8 provides fixed support.

[0035] The clamping rollers 11 include rollers 13 and a shaft frame 26, with the shaft frame 26 being V-shaped. Two rollers 13 are respectively rotatably mounted on two forks of the shaft frame 26. The clamping rollers 11 move relative to the surface of the large heat exchanger in a rolling manner. When the large heat exchanger undergoes vertical displacement, the swing positioning mechanism 5 will not be subjected to excessive impact, thus preventing structural damage. The rollers 13 are made of rubber, which can provide a certain amount of friction and cushioning, reducing the shaking impact of the large heat exchanger to a certain extent, while avoiding mechanical damage to the surface of the large heat exchanger. The rollers 13 have high friction with the surface of the large heat exchanger, which can effectively prevent slippage and movement of the heat exchanger during operation. The outer circumference of the axes of the two rollers 13 are distributed at obtuse angles, and they cooperate and contact the outer wall of the large heat exchanger. Each clamping roller 11 is V-shaped, which can better fit the surface of the large heat exchanger and increase the contact area.

[0036] like Figure 4As shown, the bracket 6 is positioned below the swing positioning mechanism 5 and is fixedly connected to the platform frame 1. It is used to support the large heat exchanger and plays the main load-bearing role. The bracket 6 includes an upper first annular flange 14 and a lower second annular flange 15, both of which are fitted and inserted into the large heat exchanger. Multiple support columns 16 are connected below the first annular flange 14. The support columns 16 stand on the ground to provide support. The second annular flange 15 is located within the space enclosed by the support columns 16 and is connected to each support column 16. Each support column 16 is connected to a connecting column 17, which is connected to the platform frame 1. Through the connecting column 17, a portion of the force is transmitted to the platform frame 1, reducing the force on the bracket 6, improving the load-bearing capacity and service life of the bracket 6, and distributing the force. This can distribute the weight of the large heat exchanger to the platform frame 1 and the ground, avoiding local stress concentration, improving the load-bearing capacity and stability of the present invention, and solving the problem that existing tooling frames cannot support large heat exchangers.

[0037] like Figure 6 As shown, a wedge-shaped pad 18 is provided between the bottom end of the support column 16 and the ground; the inclined surface of the wedge-shaped pad 18 fits against the bottom surface of the support column 16. The bracket 6 is leveled by adjusting the wedge-shaped pad 18. By changing the insertion depth or position of the wedge-shaped pad 18 under the bracket 6, the height of different parts of the platform can be adjusted to make the bracket 6 reach a horizontal state, ensuring the stability and accuracy of the installation, commissioning and operation of the large heat exchanger. The wedge-shaped pad 18 can also be set below the column 2 to adjust the overall level of the platform frame 1 without the need for high-precision leveling of the installation ground. The level of the test bench and heat exchanger can be calibrated by adjusting the relative position of the wedge-shaped pads 18, which reduces the requirements for the site foundation and improves the applicability of the invention. The wedge-shaped pads 18 are generally made of high-strength alloy steel. Alloy steel has high strength, high hardness, wear resistance, and will not deform or be damaged even under long-term stress and repeated adjustments. In order to reduce adjustment friction and prevent corrosion, the wedge-shaped pads 18 are also often surface treated, such as quenching to harden the surface, or surface treatment such as zinc plating, nickel plating, etc., and rust prevention treatment to extend service life.

[0038] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0039] Although the specific embodiments of the invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the invention. Based on the technical solutions of the invention, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the invention.

Claims

1. A large heat exchanger tooling stand, characterized by, The utility model relates to a large -scale heat exchanger positioning device, including: Platform frame (1), the platform frame (1) includes four columns (2), and the beam (3) is connected between adjacent column (2), and the upper end fixed connection of platform frame (1) has the mesa (4), and the mesa (4) is opened with the cooperation hole (25) of large -scale heat exchanger outer diameter adaptation plug joint and is matched, Swing positioning mechanism (5) are set up below the mesa (4), and swing positioning mechanism (5) are fixedly connected with the beam (3), are used for clamping large -scale heat exchanger and can adjust the angle of large -scale heat exchanger, The bracket (6) is set up below swing positioning mechanism (5), the bracket (6) is fixedly connected with platform frame (1), and is used for supporting large -scale heat exchanger.

2. The large heat exchanger tooling rack of claim 1, wherein, Swing positioning mechanism (5) includes three clamping rollers (11), fixed support (8) and two symmetrical movable support (7), one clamping roller (11) is hinged with fixed support (8), and the other two clamping rollers (11) are respectively hinged with corresponding movable support (7), and three are in the same horizontal plane, and constitute a clamping space, and large -scale heat exchanger is clamped in.

3. The large heat exchanger tooling rack of claim 2, wherein, Movable support (7) includes electric push rod (9) and two connecting rods (10), the cylinder end of electric push rod (9) is fixedly connected with the beam (3), one end of two connecting rods (10) is hinged with each other, the non-hinged end of one connecting rod (10) is hinged with frame beam (3), the non-hinged end of the other connecting rod (10) is hinged with the piston rod end of electric push rod (9), and the hinged end of two connecting rods (10) is also hinged with clamping roller (11), One end of fixed support (8) is fixedly connected with frame beam (3), and the other end is hinged with clamping roller (11).

4. The large heat exchanger tooling rack of claim 2, wherein, Clamping roller (11) includes roller (13) and shaft bracket (26), and the shaft bracket (26) is V-shaped, two rollers (1) are respectively rollably sleeved on the two prongs of the shaft bracket (26), and the outer peripheral surface of the axis of the two rollers (13) is distributed at an obtuse angle, and is in contact with the outer wall of the large -scale heat exchanger.

5. The large heat exchanger tooling rack of claim 1, wherein, The bracket (6) includes the first annular flange (14) of upper layer and the second annular flange (15) of lower layer, both are matched with large -scale heat exchanger and are inserted, a plurality of support columns (16) are connected below the first annular flange (14), the second annular flange (15) is located in the space surrounded by the support column (16), and the second annular flange (15) is connected with each support column (16) respectively, each support column (16) is connected with a connecting column (17), and the connecting column (17) is connected with the platform frame (1).

6. The large heat exchanger tooling rack of claim 4, wherein, It also includes a top shelf (20), which is a frame structure with four fence rods surrounding the support column. The top shelf (20) is fixedly connected to the upper surface of the mesa (4) and surrounds the outer periphery of the large-scale heat exchanger. The top shelf (20) is also provided with a gate (21) that can be opened and closed.

7. The large heat exchanger tooling rack of claim 5, wherein, A wedge-shaped pad (18) is provided between the bottom end of the support column (16) and the ground. The inclined surface of the wedge-shaped pad (18) is in close contact with the bottom surface of the support column (16). The wedge-shaped pad (18) is adjusted to level the bracket (6).

8. The large heat exchanger tooling rack of claim 1, wherein, Escalators (19) are arranged on both sides below the table top (4) and fixedly connected with the table top (4).

9. The large heat exchanger tooling rack of claim 1, wherein, The circumferential inner wall of the matching hole (25) is further provided with a ring of limiting members (22), the limiting members (22) comprise a bent plate (23) and a socket plate (24), the bent plate (23) is detachably connected with the large heat exchanger, the socket plate (24) is hingedly connected with the table top (4), and the bent plate (23) and the socket plate (24) are slidably inserted.

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