Tube disassembling tool for tube bundle evaporator

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly relates to a pipe disassembling tool for a pipe bundle evaporator, which comprises the pipe bundle evaporator and a plurality of pipe fittings arranged on the pipe bundle evaporator, the pipe disassembling tool comprises a connecting piece I and a connecting piece II, the connecting piece I comprises a supporting plate I, and the connecting piece II comprises a supporting plate II. A plurality of bending assemblies are arranged between the supporting plate I and the supporting plate II, each bending assembly comprises a rotating shaft, a connecting rod I and a connecting rod II, the connecting rod I and the connecting rod II are rotatably arranged on the two sides of the rotating shaft, the connecting rod I is connected with the supporting plate I, the connecting rod II is connected with the supporting plate II, and the pipe disassembling tool is arranged in the pipe fitting. The distance between the supporting plate I and the supporting plate II is reduced by rotating the nut, meanwhile, the included angle between the connecting rod I and the connecting rod II is reduced, the friction plate is gradually attached to the inner wall of the pipe fitting, and the pipe fitting can be pulled out by lifting the pipe disassembling tool.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a tube-bundle evaporator tube removal tool. Background Art

[0002] The tube bundle evaporator is a heat exchanger equipment, which is a large cylindrical heat exchange equipment. There are more than 2,000 circular heating pipes of the same size in the tube bundle evaporator. The heat exchange principle is to pass high-temperature steam into the gaps between these pipes, heat and concentrate the solution flowing down from the inside of the pipes, and condense the high-temperature steam into qualified water for reuse. After the tube bundle evaporator has been running for a certain period of time, the pipes will be worn or corroded, which not only increases energy consumption but also causes water pollution, which has a great impact on production. The heating pipes need to be replaced regularly to ensure the operating efficiency of the tube bundle evaporator.

[0003] During disassembly and assembly, the old pipe fittings need to be completely removed and new pipe fittings need to be installed in the original channels. There are generally two ways to remove old pipes in the prior art. One method is to pull the pipe fittings upward from the bottom, cut them off step by step, and move them outside the evaporator. However, since the lower head area is a narrow and enclosed space, the efficiency is low and there are safety risks when removing the old tube bundle from the lower head. Therefore, the second method of pulling the old pipe fittings upward from the top is adopted. However, due to the serious wear or corrosion of the old pipe fittings, the internal fractures of the pipe fittings often occur when the old pipe fittings are pulled out, and they cannot be completely pulled out, resulting in the inability to replace new pipe fittings. Every time the tube bundle is replaced, the replacement of the pipe fittings is incomplete and the maintenance workload is large. Utility Model Content

[0004] In view of the technical problems existing in the background technology, the purpose of the utility model is to provide a tube-bundle evaporator tube removal tool, which can pull out the tube from the middle and avoid the situation that the tube is not completely removed.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A tube bundle evaporator tube removal tool comprises a tube bundle evaporator and a plurality of tube fittings arranged on the tube bundle evaporator, the tube removal tool comprises a connector I and a connector II, the connector I comprises a support plate I, the connector II comprises a support plate II, a plurality of bending components are arranged between the support plate I and the support plate II, the bending components comprise a rotating shaft and connecting rods I and II rotatably arranged on both sides of the rotating shaft, the connecting rod I is connected to the support plate I, the connecting rod II is connected to the support plate II, and the tube removal tool is arranged inside the tube fitting.

[0007] Preferably, a plurality of connecting grooves I are provided on the support plate I, and connecting rods I are provided in the connecting grooves I.

[0008] Preferably, the connecting rod I and the supporting plate I are rotatably connected, one end of the connecting rod I is provided with a through hole I, the connecting rod I is arranged in the connecting groove I, and the connecting rod I passes through the through hole I.

[0009] Preferably, a plurality of connecting grooves II are provided on the support plate II, and connecting rods II are provided in the connecting grooves II.

[0010] Preferably, the connecting rod II and the support plate II are rotatably connected, one end of the connecting rod II is provided with a through hole II, the connecting rod II is arranged in the connecting groove II, and the connecting rod II passes through the through hole II.

[0011] Preferably, a connecting hole is provided on the support plate I, and the connecting member I further comprises a supporting tube, and the supporting tube is provided at one end of the support plate I and at the position of the connecting hole.

[0012] Preferably, the connecting member II further comprises a support rod, which is arranged at one end of the support plate II and passes through the connecting hole and is slidably connected to the support tube.

[0013] Preferably, a slide groove is arranged above the support tube, a nut is rotatably arranged on the support tube, a slider is arranged at one end of the nut, and the slider extends into the slide groove.

[0014] Preferably, a threaded section is provided on the support rod.

[0015] Preferably, a plurality of friction plates are arranged on the rotating shaft.

[0016] The utility model has the following advantages and beneficial effects:

[0017] 1. In the utility model, the pipe removal tool is placed inside the pipe fitting, and the nut is rotated to reduce the distance between the support plate I and the support plate II. At the same time, the angle between the connecting rod I and the connecting rod II becomes smaller, and the friction plate gradually clings to the inner wall of the pipe fitting. The pipe removal tool is lifted and the pipe fitting can be pulled out. This design uses the inside of the pipe fitting as a support to remove the pipe fitting, thereby avoiding the inconvenience of removal due to damage to the upper and lower ends of the pipe fitting.

[0018] Second, in the utility model, the nut and the threaded section are connected in cooperation, and the angle between the connecting rod I and the connecting rod II can be finely adjusted, so that the accuracy of the pipe removal process is higher and the efficiency of the pipe replacement is accelerated.

[0019] 3. The utility model has a simple structure and is easy to operate, making it convenient to dismantle pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a tube bundle evaporator tube removal tool provided by the utility model;

[0021] Figure 2A schematic diagram of the structure of a tube bundle evaporator provided by the utility model;

[0022] Figure 3 A schematic diagram of the structure of a connector I of a tube bundle evaporator tube removal tool provided by the utility model;

[0023] Figure 4 A structural schematic diagram of the other side of a connector I of a tube bundle evaporator tube removal tool provided by the utility model;

[0024] Figure 5 A schematic diagram of the structure of a connector II of a tube bundle evaporator tube removal tool provided by the utility model;

[0025] Figure 6 A cross-sectional view of a bending assembly of a tube bundle evaporator tube removal tool provided by the utility model;

[0026] Figure 7 A schematic diagram of a nut structure of a tube bundle evaporator tube removal tool provided by the utility model;

[0027] Figure 8 A schematic diagram of the connection between a nut and a support tube of a tube bundle evaporator tube removal tool provided by the utility model;

[0028] Fig. 9 A schematic diagram of the structure of a tube bundle evaporator tube removal tool provided by the utility model before removing the tube fittings;

[0029] Fig.10 A schematic diagram of the connection between a pipe fitting and a pipe removal tool of a tube bundle evaporator provided by the utility model;

[0030] Icons: 1-tube bundle evaporator, 101-pipe fittings, 2-tube removal tools, 3-support plate Ⅰ, 31-connecting groove Ⅰ, 32-connecting rod Ⅰ, 33-connecting hole, 34-support tube, 35-slide groove, 4-support plate Ⅱ, 41-connecting groove Ⅱ, 42-connecting rod Ⅱ, 43-support rod, 44-threaded section, 5-connecting rod Ⅰ, 51-through hole Ⅰ, 52-connecting rod Ⅱ, 53-through hole Ⅱ, 54-rotating shaft, 55-friction plate, 7-nut, 71-slider. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings 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.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example

[0034] like Figure 1 , 2 , 3, 4, 5, 6, 8, 9, and 10, a tube bundle evaporator tube removal tool includes a tube bundle evaporator 1 and a plurality of tubes 101 arranged on the tube bundle evaporator 1, the tube removal tool 2 includes a connector Ⅰ and a connector Ⅱ, a plurality of bending components are arranged between the connector Ⅰ and the connector Ⅱ, the tube removal tool 2 is arranged inside the tube 101, the bending component includes a rotating shaft 54 ​​and connecting rods Ⅰ5 and Ⅱ52 rotatably arranged on both sides of the rotating shaft 54, the connecting member Ⅰ includes a support plate Ⅰ3 and a support tube 34, A connecting hole 33 is provided on the support plate Ⅰ3, a support tube 34 is provided at the upper end of the support plate Ⅰ3 and at the position of the connecting hole 33, a plurality of connecting grooves Ⅰ31 are provided on the support plate Ⅰ3, a connecting rod Ⅰ32 is provided in the connecting groove Ⅰ31, the connecting member Ⅱ includes a support plate Ⅱ4 and a support rod 43, the support rod 43 is provided at one end of the support plate Ⅱ4, the support rod 43 passes through the connecting hole 33 and the support tube 34 for sliding connection, a plurality of connecting grooves Ⅱ41 are provided on the support plate Ⅱ4, a connecting rod Ⅱ42 is provided in the connecting groove Ⅱ41.

[0035] like Figure 1 , 3 As shown in , 4, 5, 6, 9 and 10, connecting rod Ⅰ5 and support plate Ⅰ3 are rotatably connected, one end of connecting rod Ⅰ5 is provided with through hole Ⅰ51, connecting rod Ⅰ5 is arranged in connecting groove Ⅰ31, connecting rod Ⅰ32 passes through through hole Ⅰ51, connecting rod Ⅱ52 and support plate Ⅱ4 are rotatably connected, one end of connecting rod Ⅱ52 is provided with through hole Ⅱ53, connecting rod Ⅱ52 is arranged in connecting groove Ⅱ41, connecting rod Ⅱ42 passes through through hole Ⅱ53, when the distance between support plate Ⅰ3 and support plate Ⅱ4 becomes smaller, the angle between connecting rod Ⅰ5 and connecting rod Ⅱ52 becomes smaller.

[0036] like Figure 1 , 5As shown in , 7, 8, 9 and 10, a slide groove 35 is arranged above the support tube 34, a nut 7 is rotatably arranged on the support tube 34, a slider 71 is arranged at one end of the nut 7, the slider 71 extends into the slide groove 35, a threaded section 44 is arranged on the support rod 43, the nut 7 and the threaded section 44 are connected by threaded cooperation, when the nut 7 is rotated to move downward on the support rod 43, the nut 7 drives the support tube 34 to move downward synchronously while rotating, and the same is true when moving upward, the support tube 34 and the support rod 43 are connected by the threaded section 44 and the nut 7, which can prevent the support tube 34 and the support rod 43 from shaking relative to each other, ensure the stability of the pipe removal tool 2, and make the pipe removal process more efficient and convenient.

[0037] like Figure 1 , 6 As shown in Figures 9 and 10, a plurality of friction plates 55 are arranged on the rotating shaft 54, and the friction plates 55 are arranged toward the inner wall of the pipe 101. When the angle between the connecting rod Ⅰ5 and the connecting rod Ⅱ52 becomes smaller, the rotating shaft 54 ​​drives the friction plates 55 to gradually approach the inner wall of the pipe 101, and the friction plates 55 abut against the inner wall of the pipe 101 to prevent the rotating shaft 54 ​​from directly contacting the pipe 101 and causing wear to each other. At the same time, the friction plates 55 are in contact with the pipe 101, and the friction force is relatively large, so it is easier to pull up the pipe 101.

[0038] Working principle: Place the pipe removal tool 2 inside the pipe fitting 101, rotate the nut 7 to make it move downward on the support rod 43, and during the movement of the nut 7, the support tube 34 is driven downward, and then the support plate I3 is driven to move toward the direction of the support plate II4. At this time, the distance between the connecting rod I5 and the connecting rod II52 becomes smaller, and the rotating shaft 54 ​​drives the friction plate 55 to extend out of the pipe removal tool 2, and the position of the nut 7 is continuously adjusted to make the friction plate 55 and the inner wall of the pipe fitting 101 close to each other, and the pipe removal tool 2 is pulled out to bring the pipe fitting 101 out, and the nut 7 is rotated again to make it move toward the top of the support rod 43. At this time, the distance between the support plate I3 and the support plate II4 becomes larger, and the angle between the connecting rod I5 and the connecting rod II52 becomes larger, and the rotating shaft 54 ​​drives the friction plate 55 to separate from the inner wall of the pipe fitting 101, so that the pipe removal tool 2 and the pipe fitting 101 are separated, and the removal of the pipe fitting 101 is completed.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tube bundle evaporator tube removal tool, comprising a tube bundle evaporator and a plurality of tubes arranged on the tube bundle evaporator, characterized in that: The pipe removal tool includes a connecting member I and a connecting member II, wherein the connecting member I includes a support plate I, and the connecting member II includes a support plate II. A plurality of bending components are arranged between the support plate I and the support plate II, and the bending components include a rotating shaft and connecting rods I and II rotatably arranged on both sides of the rotating shaft, wherein the connecting rod I is connected to the support plate I, and the connecting rod II is connected to the support plate II, and the pipe removal tool is arranged inside the pipe fitting.

2. The tube bundle evaporator tube removal tool according to claim 1, characterized in that: The support plate I is provided with a plurality of connection grooves I, and connection rods I are provided in the connection grooves I.

3. The tube bundle evaporator tube removal tool according to claim 2, characterized in that: The connecting rod I is rotatably connected to the supporting plate I, one end of the connecting rod I is provided with a through hole I, the connecting rod I is arranged in the connecting groove I, and the connecting rod I passes through the through hole I.

4. The tube removal tool for a tube bundle evaporator according to claim 1, characterized in that: The support plate II is provided with a plurality of connection grooves II, and connection rods II are provided in the connection grooves II.

5. The tube-bundle evaporator tube removal tool according to claim 4, characterized in that: The connecting rod II is rotatably connected to the supporting plate II, one end of the connecting rod II is provided with a through hole II, the connecting rod II is arranged in the connecting groove II, and the connecting rod II passes through the through hole II.

6. The tube bundle evaporator tube removal tool according to claim 3, characterized in that: The support plate I is provided with a connection hole, and the connection member I further comprises a support tube, which is provided at one end of the support plate I and at the position of the connection hole.

7. The tube-bundle evaporator tube removal tool according to claim 6, characterized in that: The connecting member II also includes a support rod, which is arranged at one end of the support plate II and passes through the connecting hole and is slidably connected to the support tube.

8. The tube-bundle evaporator tube removal tool according to claim 6, characterized in that: A slide groove is arranged above the support tube, a nut is rotatably arranged on the support tube, a slider is arranged at one end of the nut, and the slider extends into the slide groove.

9. The tube-bundle evaporator tube removal tool according to claim 7, characterized in that: The support rod is provided with a threaded section.

10. The tube-bundle evaporator tube removal tool according to claim 1, characterized in that: A plurality of friction plates are arranged on the rotating shaft.

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