Auxiliary device for assembling tube bundle and shell of heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger tube bundle and shell assembling auxiliary device which comprises a movable base, conveying rollers and a lifting assembly, universal wheels are arranged at the bottom of the movable base, a lifting table is arranged above the movable base, and the lifting assembly is arranged between the lifting table and the movable base. A first adjusting table is arranged above the lifting table, the bottom of one end of the lifting table is rotationally connected with the upper portion of the same end of the first adjusting table, an adjusting assembly is arranged between the lifting table and the first adjusting table, a second adjusting table is arranged above the first adjusting table, and the bottom of one side of the second adjusting table is rotationally connected with the upper portion of the same side of the first adjusting table. An electric telescopic rod is arranged between the first adjusting table and the second adjusting table, a conveying roller is arranged above the second adjusting table, and limiting assemblies are arranged at the two ends of the upper portion of the second adjusting table; the heat exchanger tube bundle lifting device can lift the heat exchanger tube bundle to a proper posture, and an operator can conveniently insert the tube bundle into a heat exchanger shell.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to an auxiliary device for assembling heat exchanger tube bundles and shells. Background Technology

[0002] The heat exchanger tube bundle is one of the core components of a heat exchanger, consisting of many metal tubes. Two fluids of different temperatures flow through the tube bundle, and heat is transferred from the high-temperature fluid to the low-temperature fluid, thus achieving heat exchange. When the high-temperature fluid flows inside the tube bundle, heat is transferred to the low-temperature fluid outside the tube bundle through the tube wall; conversely, when the low-temperature fluid flows inside the tube bundle, heat is transferred from the high-temperature fluid outside the tube bundle to the low-temperature fluid inside the tube bundle.

[0003] During the installation of the heat exchanger tube bundle, the tube bundle needs to be inserted into the heat exchanger shell. This process requires manual lifting of the tube bundle, which is time-consuming and labor-intensive. When the pipes are long and heavy, a crane is used. However, the crane will shake after lifting the tube bundle, which is not conducive to the assembly of the tube bundle. In addition, the crane is not convenient for adjusting the posture of the tube bundle.

[0004] Therefore, to address the above problems, an auxiliary device for assembling heat exchanger tube bundles and shells can be designed. This device uses a ground-based mechanical structure to lift the tube bundles and adds a multi-directional adjustment mechanism, allowing operators to easily insert the tube bundles into the heat exchanger shell to complete the assembly. Utility Model Content

[0005] To overcome the problem that during the installation of heat exchanger tube bundles, it is necessary to insert the tube bundles into the heat exchanger shell, which requires manual lifting of the tube bundles, which is time-consuming and labor-intensive. When the pipes are long and heavy, a crane is used. However, the crane will shake after lifting the tube bundles, which is not conducive to the assembly of the tube bundles. In addition, the crane is not convenient for adjusting the posture of the tube bundles.

[0006] The technical solution of this utility model is as follows: an auxiliary device for assembling heat exchanger tube bundles and shells, including a movable base, a conveying roller, and a lifting assembly. The movable base is equipped with casters at its bottom, and a lifting platform is located above the movable base. A lifting assembly is located between the lifting platform and the movable base. A first adjusting platform is located above the lifting platform, with one bottom end of the lifting platform rotatably connected to the same top end of the first adjusting platform. An adjusting assembly is located between the lifting platform and the first adjusting platform. A second adjusting platform is located above the first adjusting platform, with one bottom side of the second adjusting platform rotatably connected to the same top side of the first adjusting platform. An electric telescopic rod is located between the first and second adjusting platforms, with both ends of the electric telescopic rod rotatably connected to the first and second adjusting platforms respectively. A conveying roller is located above the second adjusting platform, and limit assemblies are located at both ends above the second adjusting platform.

[0007] Preferably, the lifting assembly includes a scissor lifting frame, a first threaded rod, a first movable seat, and a first drive motor. The scissor lifting frame is disposed above the movable base, the bottom of the scissor lifting frame is slidably connected to the movable base, and the top of the scissor lifting frame is slidably connected to the lifting platform.

[0008] Preferably, the bottom of the scissor lift frame is provided with a first movable seat, which is rotatably connected to the scissor lift frame. The inner side of the first movable seat is provided with a first threaded rod, which is threadedly connected to the first movable seat. The two ends of the first threaded rod have opposite thread directions, and one end of the first threaded rod is provided with a first drive motor.

[0009] Preferably, the adjustment assembly includes an inclined plate, a second movable seat, a second threaded rod, and a second drive motor. The second movable seat is located above the lifting platform, and a roller is located above the second movable seat. The roller is rotatably connected to the second movable seat. The second threaded rod is located on the inner side of the second movable seat and is threadedly connected to the second movable seat. The second drive motor is located at one end of the second movable seat, and the inclined plate is located at the bottom of the first adjustment platform.

[0010] Preferably, the second movable seat is provided with first guide blocks on both sides, and a first guide groove is provided at the connection between the lifting platform and the first guide blocks.

[0011] Preferably, the limiting component includes a limiting rod, a second guide block, and a second guide groove. The second guide groove is provided at both ends of the second adjusting platform, and a second guide block is provided in the second guide groove. The second guide block is slidably connected to the second guide groove, and a limiting rod is provided above the second guide groove.

[0012] Preferably, a third threaded rod is provided on the inner side of the second guide block. The third threaded rod is threadedly connected to the second guide block. The threads at both ends of the third threaded rod are in opposite directions, and a force-bearing block is provided at one end of the third threaded rod.

[0013] The beneficial effects of this utility model are:

[0014] By setting the conveyor rollers to support and facilitate the movement of the tube bundle, the lifting assembly can raise or lower the height of the lifting platform, thereby adjusting the height of the tube bundle. The electric telescopic rod can extend or retract, changing the angle between the first and second adjusting platforms, thus adjusting the posture of the tube bundle within a certain range, facilitating the oblique installation of U-shaped tube bundles. The adjusting assembly can adjust the angle between the lifting platform and the first adjusting platform, thereby adjusting the inclination angle of the tube bundle within a certain range, facilitating the installation of tube bundles in uneven ground environments. The limiting assembly prevents the tube bundle from slipping off the side of the conveyor rollers. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of an auxiliary device for assembling a heat exchanger tube bundle and shell according to this utility model.

[0016] Figure 2 The diagram shown is a three-dimensional structural schematic of a lifting component of an auxiliary device for assembling heat exchanger tube bundles and shells according to this utility model.

[0017] Figure 3 The diagram shown is a three-dimensional structural schematic of the adjustment component of an auxiliary device for assembling a heat exchanger tube bundle and shell according to this utility model.

[0018] Figure 4 The diagram shown is a three-dimensional structural schematic of the limiting component of an auxiliary device for assembling heat exchanger tube bundles and shells according to this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Movable base; 3. Lifting platform; 4. First adjusting platform; 5. Second adjusting platform; 6. Conveying roller; 8. Electric telescopic rod; 201. Scissor lifting frame; 202. First threaded rod; 203. First movable seat; 204. First drive motor; 701. Second threaded rod; 702. Second movable seat; 703. First guide block; 704. First guide groove; 705. Roller; 706. Inclined plate; 707. Second drive motor; 901. Limiting rod; 902. Second guide block; 903. Second guide groove; 904. Third threaded rod; 905. Force-bearing block. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-4This utility model provides an embodiment: an auxiliary device for assembling a heat exchanger tube bundle and shell, including a movable base 1, a conveying roller 6, and a lifting assembly. The movable base 1 is equipped with casters at its bottom, and a lifting platform 3 is positioned above it. A lifting assembly is located between the lifting platform 3 and the movable base 1. A first adjusting platform 4 is positioned above the lifting platform 3, with one bottom end of the lifting platform 3 rotatably connected to the same top end of the first adjusting platform 4. An adjusting assembly is located between the lifting platform 3 and the first adjusting platform 4. A second adjusting platform 5 is positioned above the first adjusting platform 4, with one bottom side of the second adjusting platform 5 rotatably connected to the same top side of the first adjusting platform 4. An electric telescopic rod 8 is positioned between the first adjusting platform 4 and the second adjusting platform 5. The two ends are rotatably connected to the first adjusting platform 4 and the second adjusting platform 5 respectively. A conveying roller 6 is provided above the second adjusting platform 5, and limit components are provided at both ends above the second adjusting platform 5. By setting the conveying roller 6 to carry and facilitate the movement of the tube bundle, the lifting component can raise or lower the height of the lifting platform 3, thereby adjusting the height of the tube bundle. The electric telescopic rod 8 can extend or retract, so that the angle between the first adjusting platform 4 and the second adjusting platform 5 changes, thereby adjusting the posture of the tube bundle within a certain range, which is convenient for the oblique installation of the U-shaped tube bundle. The adjusting component can adjust the angle between the lifting platform 3 and the first adjusting platform 4, thereby adjusting the tilt angle of the tube bundle within a certain range, which is convenient for the installation of the tube bundle in uneven ground environments. The limit components prevent the tube bundle from slipping off the side of the conveying roller 6.

[0022] Please see Figure 2 In this embodiment, the lifting assembly includes a scissor lifting frame 201, a first threaded rod 202, a first movable seat 203, and a first drive motor 204. The scissor lifting frame 201 is disposed above the movable base 1. The bottom of the scissor lifting frame 201 is slidably connected to the movable base 1, and the top of the scissor lifting frame 201 is slidably connected to the lifting platform 3. The bottom of the scissor lifting frame 201 is provided with the first movable seat 203, which is rotatably connected to the scissor lifting frame 201. The inner side of the first movable seat 203 is provided with the first threaded rod 202, which is threadedly connected to the first movable seat 203. The two ends of the first threaded rod 202 have opposite thread directions, and one end of the first threaded rod 202 is provided with the first drive motor 204. The first drive motor 204 drives the first threaded rod 202 to rotate. The opposite thread directions at both ends of the first threaded rod 202 drive the two sets of first movable seats 203 to move closer or further apart, causing the scissor lifting frame 201 to deform and thus causing the lifting platform 3 to move up and down.

[0023] Please see Figure 3In this embodiment, the adjustment assembly includes an inclined plate 706, a second movable seat 702, a second threaded rod 701, and a second drive motor 707. The second movable seat 702 is positioned above the lifting platform 3, and a roller 705 is positioned above the second movable seat 702, rotatably connected to the second movable seat 702. A second threaded rod 701 is positioned on the inner side of the second movable seat 702, threadedly connected to the second movable seat 702. A second drive motor 707 is positioned at one end of the second movable seat 702, and an inclined plate 706 is positioned at the bottom of the first adjustment platform 4. The second movable seat 702 is provided with first guide blocks 703 on both sides, and the connection between the lifting platform 3 and the first guide blocks 703 is provided with a first guide groove 704. The second drive motor 707 drives the second threaded rod 701 to rotate, which drives the second movable seat 702 to slide above the lifting platform 3 under the guidance of the first guide blocks 703 and the first guide groove 704. During the movement of the second movable seat 702, the roller 705 contacts the inclined plate 706, which lifts one end of the first adjusting platform 4 or lowers one end of the first adjusting platform 4, thereby adjusting the inclination angle of the first adjusting platform 4 and the tube bundle.

[0024] Please see Figure 4 In this embodiment, the limiting component includes a limiting rod 901, a second guide block 902, and a second guide groove 903. The second guide groove 903 is provided at both ends of the second adjusting platform 5. The second guide block 902 is provided in the second guide groove 903 and is slidably connected to the second guide groove 903. The limiting rod 901 is provided above the second guide groove 903. A third threaded rod 904 is provided on the inner side of the second guide block 902 and is threadedly connected to the second guide block 902. The threads at both ends of the third threaded rod 904 are opposite in direction. A force-bearing block 905 is provided at one end of the third threaded rod 904. When a tool is inserted into the force-bearing block 905 and rotated, the third threaded rod 904 rotates and, using the opposite threads at both ends of the third threaded rod 904, drives the two sets of second guide blocks 902 to move closer or further apart, thereby adjusting the distance between the two sets of limiting rods 901.

[0025] When using the device, the tube bundle is placed above the conveyor roller 6, and the tube bundle is moved to a suitable position using the movable base 1 with casters. A tool is inserted into the force block 905 and rotated, causing the third threaded rod 904 to rotate. The opposite threads at both ends of the third threaded rod 904 drive the two sets of second guide blocks 902 to move closer or further apart, thereby adjusting the distance between the two sets of limit rods 901. Then, the first drive motor 204 drives the first threaded rod 202 to rotate, and the opposite threads at both ends of the first threaded rod 202 drive the two sets of first movable seats 203 to move closer or further apart, causing the scissor lifting frame 201 to deform, thereby moving the lifting platform 3 up and down, so that the tube bundle moves to a suitable height. Subsequently, the electric telescopic mechanism is activated. The extension or retraction of rod 8 changes the angle between the first adjusting platform 4 and the second adjusting platform 5, thereby adjusting the posture of the tube bundle within a certain range, facilitating the oblique installation of the U-shaped tube bundle. The second drive motor 707 drives the second threaded rod 701 to rotate, causing the second movable seat 702 to slide above the lifting platform 3 under the guidance of the first guide block 703 and the first guide groove 704. During the movement of the second movable seat 702, the roller 705 contacts the inclined plate 706, lifting one end of the first adjusting platform 4 or lowering one end of the first adjusting platform 4, thereby adjusting the inclination angle between the first adjusting platform 4 and the tube bundle, so that the tube bundle can correspond to the hole position of the heat exchanger shell. Finally, the tube bundle is pushed to insert the tube bundle into the heat exchanger shell to complete the assembly.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An auxiliary device for assembling a heat exchanger tube bundle and shell, comprising a movable base (1); characterized in that: It also includes a conveyor roller (6) and a lifting assembly. The bottom of the movable base (1) is provided with casters. A lifting platform (3) is provided above the movable base (1). A lifting assembly is provided between the lifting platform (3) and the movable base (1). A first adjusting platform (4) is provided above the lifting platform (3). One end of the bottom of the lifting platform (3) is rotatably connected to the same end of the first adjusting platform (4). An adjusting assembly is provided between the lifting platform (3) and the first adjusting platform (4). A second adjusting platform (5) is provided above the first adjusting platform (4). One side of the bottom of the second adjusting platform (5) is rotatably connected to the same side of the first adjusting platform (4). An electric telescopic rod (8) is provided between the first adjusting platform (4) and the second adjusting platform (5). Both ends of the electric telescopic rod (8) are rotatably connected to the first adjusting platform (4) and the second adjusting platform (5) respectively. A conveyor roller (6) is provided above the second adjusting platform (5). Limiting assemblies are provided at both ends above the second adjusting platform (5).

2. The heat exchanger tube bundle and shell assembly auxiliary device according to claim 1, characterized in that: The lifting assembly includes a scissor lifting frame (201), a first threaded rod (202), a first movable seat (203), and a first drive motor (204). The scissor lifting frame (201) is arranged above the movable base (1). The bottom of the scissor lifting frame (201) is slidably connected to the movable base (1), and the top of the scissor lifting frame (201) is slidably connected to the lifting platform (3).

3. The heat exchanger tube bundle and shell assembly auxiliary device according to claim 2, characterized in that: The bottom of the scissor lift frame (201) is provided with a first movable seat (203), which is rotatably connected to the scissor lift frame (201). The inner side of the first movable seat (203) is provided with a first threaded rod (202), which is threadedly connected to the first movable seat (203). The two ends of the first threaded rod (202) have opposite thread directions, and one end of the first threaded rod (202) is provided with a first drive motor (204).

4. The heat exchanger tube bundle and shell assembly auxiliary device according to claim 1, characterized in that: The adjustment assembly includes a ramp (706), a second movable seat (702), a second threaded rod (701), and a second drive motor (707). The second movable seat (702) is provided above the lifting platform (3), and a roller (705) is provided above the second movable seat (702). The roller (705) is rotatably connected to the second movable seat (702). The second threaded rod (701) is provided on the inner side of the second movable seat (702). The second threaded rod (701) is threadedly connected to the second movable seat (702). The second drive motor (707) is provided at one end of the second movable seat (702). The ramp (706) is provided at the bottom of the first adjustment platform (4).

5. The heat exchanger tube bundle and shell assembly auxiliary device according to claim 4, characterized in that: The second movable seat (702) is provided with first guide blocks (703) on both sides, and a first guide groove (704) is provided at the connection between the lifting platform (3) and the first guide block (703).

6. The heat exchanger tube bundle and shell assembly auxiliary device according to claim 1, characterized in that: The limiting assembly includes a limiting rod (901), a second guide block (902), and a second guide groove (903). The second adjusting platform (5) has second guide grooves (903) at both ends. A second guide block (902) is provided in the second guide groove (903). The second guide block (902) is slidably connected to the second guide groove (903). A limiting rod (901) is provided above the second guide groove (903).

7. The heat exchanger tube bundle and shell assembly auxiliary device according to claim 6, characterized in that: The inner side of the second guide block (902) is provided with a third threaded rod (904), which is threadedly connected to the second guide block (902). The threads at both ends of the third threaded rod (904) are opposite in direction, and a force-bearing block (905) is provided at one end of the third threaded rod (904).

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