Straight pipe tool for heat exchange pipe of coiled pipe heat exchanger

Abstract

The utility model discloses a coiled tube heat exchanger heat exchange tube straight tube tool which comprises an iron plate base, a sliding groove is formed in the top face of the iron plate base, a sliding block is arranged on the top face of the iron plate base, a roller shaft is arranged on the top face of the sliding block, a roller is arranged at the upper end of the roller shaft, and a heat exchange straight tube is arranged on one side of the roller. A supporting shaft is arranged in the sliding block, and a support is arranged at one end of the supporting shaft. According to the straight pipe tool for the heat exchange pipe of the coiled pipe heat exchanger, a plurality of the sliding blocks, the roller shafts and the rollers are arranged, the heat exchange straight pipe can be combined and clamped, rolling transportation is conducted through the rollers, and the bottom plate base, the sliding grooves, the sliding blocks, the supporting shafts and the supports are arranged; the sliding blocks can be freely moved, the distance between the pulleys can be adjusted to clamp the heat exchange straight pipes with different lengths, the sliding blocks and the pulleys are used in a matched mode, manpower resources needing to be consumed during transportation of the heat exchange straight pipes can be effectively reduced, and the damage risk caused by falling and collision of the straight pipes during manual transportation is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange tube groups, in particular to a straight tube tooling for heat exchange tubes of a coiled tube heat exchanger. Background Art

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger. Heat exchanger plays an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchanger can be used as heater, cooler, condenser, evaporator and reboiler, etc., and is widely used. Shell and tube heat exchanger (also known as shell and tube heat exchanger) is a shell and tube heat exchanger mainly composed of shell, tube bundle, tube sheet and head. The shell is mostly circular, with parallel tube bundle or spiral tube inside, and the two ends of the tube bundle are fixed on the tube sheet. In the shell and tube heat exchanger, two fluids exchange heat, one flows in the tube, and its stroke is called tube pass; the other flows outside the tube, and its stroke is called shell pass. The wall of the tube bundle is the heat transfer surface. The types of tubes are different, and the process is generally 16mm 20mm or 25mm in diameter, and the thickness of the tube wall is generally 1mm, 1.5mm, 2mm and 2.5mm. Imported heat exchangers can have a minimum diameter of 8mm and a wall thickness of only 0.6mm. This greatly improves the heat exchange efficiency and has been gradually promoted in the domestic market since 2012. Shell and tube heat exchangers, with a spiral tube bundle design, can maximize the turbulence effect and increase the heat exchange efficiency. The asymmetric design of the internal shell and tube layer can reach a maximum of 4.6 times. This asymmetric design determines its wide application in the field of steam-water heat exchange. The maximum heat exchange efficiency can reach 14000w / m2.k, greatly improving production efficiency and saving costs. At the same time, since shell and tube heat exchangers are mostly metal structures, with the introduction of China's new version of GMP, heat exchangers with 316L stainless steel as the main body will become a must for the beverage, food, and pharmaceutical industries.

[0003] During the assembly process of the shell and tube heat exchanger, workers are required to assemble the internal heat exchange tubes and tube sheets. During the assembly process, the straight tubes of the tube heat exchanger need to be transported and inspected before assembly. The traditional transportation and inspection method is for workers to transport and inspect them manually, but this method consumes a lot of manpower during transportation and is accompanied by the risk of straight tubes falling, colliding and being damaged. Utility Model Content

[0004] The utility model aims to provide a straight tube fixture for heat exchange tubes of a coiled tube heat exchanger to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a straight tube tooling for heat exchange tubes of a coiled tube heat exchanger, comprising an iron plate base, a slide groove is provided on the top surface of the iron plate base, a sliding block is provided on the top surface of the iron plate base, a roller shaft is provided on the top surface of the sliding block, a roller is provided on the upper end of the roller shaft, a heat exchange straight tube is provided on one side of the roller, a support shaft is provided inside the sliding block, and two supports are provided at both ends of the support shaft.

[0006] Preferably, a through hole is provided inside the sliding block, and a limiting ring is provided inside the through hole.

[0007] Preferably, a pulley support plate is provided on the bottom surface of the sliding block, a pulley is provided below the pulley support plate, and a connecting shaft is provided on one side of the pulley.

[0008] Preferably, the outer circular wall at the upper end of the roller shaft is provided with a threaded strip, and the upper end of the roller shaft is provided with a movable nut.

[0009] Preferably, two first bearings are arranged inside the roller, a clamping tube is arranged on the top surface of the first bearing, and a fixing ring is arranged on the bottom surface of the first bearing.

[0010] Preferably, a clamping groove is provided at one end of the support shaft, a clamping ring is provided at one end of the support shaft, and a second bearing is provided on the outer circular wall of one end of the support shaft.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The straight tube tooling for the heat exchange tube of a wrap-around heat exchanger can be combined in multiple ways to clamp the heat exchange straight tubes through the provided sliding blocks, roller shafts and rollers, and can be rolled and transported by rollers. The sliding blocks can be freely moved and the spacing between the pulleys can be adjusted to clamp the heat exchange straight tubes of different lengths through the provided bottom plate base and slide grooves, sliding blocks, support shafts and supports. The coordinated use can effectively reduce the human resources required for the transportation of the heat exchange straight tubes, and effectively avoid the risk of damage caused by the straight tubes falling and colliding during human transportation.

[0013] The straight tube tooling of the heat exchange tube of the coil heat exchanger can combine the heat exchange straight tubes in multiple wrong arrangement combinations through the provided sliding block, roller shaft and roller, so as to facilitate the staff to carry out product inspection on the heat exchange straight tubes; the movable block and supporting shaft and support can be freely adjusted in position through the provided movable block, so as to facilitate the staff to inspect a certain section of the heat exchange straight tube; the coordinated use greatly improves the convenience of product inspection and assembly for the staff, and effectively reduces the risk of errors in product inspection for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a three-dimensional exploded view of the utility model;

[0015] Figure 2 This is an exploded view of the sliding block of the utility model;

[0016] Figure 3 This is an exploded view of the roller shaft of the utility model;

[0017] Figure 4 This is an exploded view of the support shaft of the utility model.

[0018] In the figure: 1. iron plate base; 2. slide groove; 3. sliding block; 4. roller shaft; 5. roller; 6. heat exchange straight pipe; 7. support shaft; 8. support; 9. through hole; 10. limit ring; 11. support plate; 12. pulley; 13. connecting shaft; 14. threaded strip; 15. movable nut; 16. first bearing; 17. clamping tube; 18. fixing ring; 19. clamping groove; 20. clamping ring; 21. second bearing. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-4As shown, the utility model provides a technical solution: a straight tube fixture for heat exchange tubes of a coiled tube heat exchanger, comprising an iron plate base 1, the iron plate base 1 is used to support the entire device to ensure that the entire device is not affected by external forces and changes in position during use, a slide groove 2 is provided on the top surface of the iron plate base 1, the slide groove 2 is used to cooperate with a sliding block 3 to ensure that the sliding block 3 can move freely on a predetermined track above the iron plate base 1, and a sliding block 3 is provided on the top surface of the iron plate base 1, the sliding block 3 is used to drive the roller shaft 4 to move, and ensure that the position of the roller 5 can be in a predetermined position. The roller shaft 4 is provided on the top surface of the sliding block 3, and the roller shaft 4 is used to fix the roller 5 to ensure that the roller 5 rotates at a fixed point. The upper end of the roller shaft 4 is provided with a roller 5, and the roller 5 is used to contact the heat exchange straight tube 6 to ensure that multiple rollers 5 can clamp the heat exchange straight tube 6 and carry out rolling transportation. A heat exchange straight tube 6 is provided on one side of the supporting roller 5. The heat exchange straight tube 6 is used as a straight tube inside the tubular heat exchanger. It can be quickly transported and assembled with the roller 5. The interior of the sliding block 3 is provided with a support shaft 7, and the support shaft 7 is used to connect Two supports 8 ensure that the sliding block 3 will not deviate left or right during the movement. Two supports 8 are arranged at both ends of the support shaft 7. The supports 8 are used to cooperate with the support shaft 7 to support the sliding block 3 and ensure that the sliding block 3 will not deviate left or right during the movement. A through hole 9 is arranged inside the sliding block 3. The through hole 9 is used to connect the support shaft 7 to ensure that the support shaft 7 can be driven to move when the sliding block 3 moves. A limit ring 10 is arranged inside the through hole 9 to limit the position of the support shaft 7 to ensure that the movement of the sliding block 3 drives the support shaft 7. The support shaft 7 moves so that the support shaft 7 will not be detached from the inside of the sliding block 3. A pulley support plate 11 is provided on the bottom surface of the sliding block 3. The pulley support plate 11 is used to support the pulley 12 at the bottom to ensure that the pulley 12 will not be detached from the bottom of the sliding block 3. A pulley 12 is provided under the pulley support plate 11. The pulley 12 is used to cooperate with the slide groove 2 for use, which is convenient for the staff to adjust the position of the sliding block 3. A connecting shaft 13 is provided on one side of the pulley 12. The connecting shaft 13 is used to connect the pulley 12 and the pulley support plate 11 to ensure that the pulley 12 rotates at a fixed point.

[0021] The outer circular wall at the upper end of the roller shaft 4 is provided with a threaded strip 14, which is used to cooperate with the movable nut 15 to ensure that the movable nut 15 can clamp the top surface of the first bearing 16. The upper end of the roller shaft 4 is provided with a movable nut 15, which is used to clamp the top surface of the first bearing 16 to ensure that the first bearing 16 will not be separated from the inside of the roller 5 when the roller 5 rotates. Two first bearings 16 are provided inside the roller 5. The first bearing 16 is used to cooperate with the roller 5 to ensure that the roller 5 can roll easily, which is convenient for the staff to transport the heat exchange straight pipe 6. The top surface of the first bearing 16 is provided with a clamping tube 17, which is used to clamp the two first bearings 16 inside the roller 5 as the connecting part. To ensure that the first bearing 16 will not loosen and fall off easily, a fixing ring 18 is provided on the bottom surface of the first bearing 16, and the fixing ring 18 is used in conjunction with the clamping tube 17 to ensure that the first bearing 16 can be firmly fixed. A clamping groove 19 is provided at one end of the support shaft 7, and the clamping groove 19 is used to connect and clamp the clamping ring 20 to ensure that the second bearing 21 will not easily break away from the interior of the support 8. A clamping ring 20 is provided at one end of the support shaft 7, and the clamping ring 20 is used in conjunction with the clamping groove 19 to ensure that the second bearing 21 can be firmly fixed in the interior of the support 8. A second bearing 21 is provided on the outer circular wall of one end of the support shaft 7, and the second bearing 21 is used in conjunction with the support 8 to ensure that the support 8 can be freely adjusted in position.

[0022] Working principle: When the staff inspects the heat exchange straight tube 6, they assemble the roller 5, place the first bearing 16 on the fixing ring 18, and then place the roller 5 on the bottom first bearing 16, and then put the clamping tube 17 on the top of the roller shaft 4 to contact the first bearing 16, and then place the upper first bearing 16 on the clamping tube 17, turn the movable nut 15 to connect with the threaded bar 14, clamp the two first bearings 16 and the clamping tube 17, and complete the assembly of the roller 5, and then pass the heat exchange straight tube 6 through the semicircular grooves of the two rollers 5 for fixing, and then perform a length inspection by toggling the sliding block 3, the movement of the sliding block 3 drives the roller shaft 4 to move, the movement of the roller shaft 4 drives the roller 5 to move, the movement of the sliding block 3 drives the support shaft 7 to move, and the movement of the support shaft 7 drives the support 8 to move, and when transporting, push the heat exchange straight tube 6, the heat exchange straight tube 6 moves to drive the roller 5 to rotate, and the roller 5 rotates the first bearing 16 to operate so that the heat exchange straight tube 6 can be easily moved, saving effort for the staff, and completing transportation and assembly.

[0023] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A straight tube fixture for heat exchange tubes of a coiled tube heat exchanger, comprising an iron plate base (1), Features: The top surface of the iron plate base (1) is provided with a slide groove (2), the top surface of the iron plate base (1) is provided with a sliding block (3), the top surface of the sliding block (3) is provided with a roller shaft (4), the upper end of the roller shaft (4) is provided with a roller (5), one side of the roller (5) is provided with a heat exchange straight pipe (6), the interior of the sliding block (3) is provided with a support shaft (7), and two ends of the support shaft (7) are provided with two supports (8).

2. A straight tube fixture for heat exchange tubes of a coiled heat exchanger according to claim 1, Features: A through hole (9) is provided inside the sliding block (3), and a limit ring (10) is provided inside the through hole (9).

3. A straight tube fixture for heat exchange tubes of a coiled heat exchanger according to claim 1, Features: A pulley support plate (11) is provided on the bottom surface of the sliding block (3), a pulley (12) is provided below the pulley support plate (11), and a connecting shaft (13) is provided on one side of the pulley (12).

4. A straight tube fixture for heat exchange tubes of a coiled heat exchanger according to claim 1, Features: The outer circular wall at the upper end of the roller shaft (4) is provided with a threaded strip (14), and the upper end of the roller shaft (4) is provided with a movable nut (15).

5. The straight tube fixture for heat exchange tubes of a coiled heat exchanger according to claim 1, Features: Two first bearings (16) are arranged inside the roller (5), a clamping tube (17) is arranged on the top surface of the first bearing (16), and a fixing ring (18) is arranged on the bottom surface of the first bearing (16).

6. A straight tube fixture for heat exchange tubes of a coiled tube heat exchanger according to claim 1, Features: One end of the support shaft (7) is provided with a snap-fit ​​groove (19), one end of the support shaft (7) is provided with a snap-fit ​​ring (20), and the outer circular wall of one end of the support shaft (7) is provided with a second bearing (21).

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