Large-scale upper support type tube bundle pumping machine

Abstract

The utility model discloses a large upper supporting type tube bundle pumping machine, and belongs to the technical field of pipeline dismounting and mounting equipment. A large upper supporting type tube bundle pumping machine comprises a bottom frame and further comprises a supporting plate fixedly connected to the bottom frame, an upper supporting rod is connected to the supporting plate in a lifting mode, and the top of the upper supporting rod can abut against the bottom of a tube bundle. The clamping plate is connected to the supporting plate in a sliding mode, when the clamping plate clamps and limits the shell, the upper supporting rod abuts against the bottom of the tube bundle, and when the clamping plate is separated from the shell and loosened, the upper supporting rod is separated from the bottom of the tube bundle; the position of the tube bundle can be gradually adjusted through the upper supporting plate, the upper supporting plate can be used in cooperation with the supporting base, the tube bundle can be rapidly adjusted to the position concentric with the shell, then the tube bundle is pushed into the shell of the heat exchanger, alignment time during adjustment is shortened, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline disassembly and assembly equipment, in particular to a large-scale upper-supporting pipe bundle extraction and assembly machine. Background Art

[0002] Tubular heat exchangers are important equipment widely used in the chemical industry. In order to ensure the safe and stable operation of chemical production, tubular heat exchangers need to be regularly inspected and maintained. Each inspection requires repeated extraction and installation of the equipment on site. However, due to the long length, heavy weight, and high-altitude operations of the heat exchanger tube bundle construction, special equipment is required in the tube bundle extraction and installation operation. The tube bundle extraction machine is the main equipment currently used in the heat exchanger tube bundle extraction and installation process.

[0003] At present, the frame part of the tube bundle extraction and installation machine adopts an attached chassis and a rigid vertical frame assembly structure. The frame is equipped with a balancing cylinder, a power box, a main crane, a small crane, a driving chain and other devices. The main crane and the small crane are placed on the guide rails of the frame. The main crane is driven by a chain to move forward and backward along the guide rails. A hydraulic device is installed on the main crane. The clamping foot is set at the front end of the guide rail to fix the ends of the tube bundle. The balancing cylinder is set on both sides of the guide rail to ensure the balance of the guide rail. Then, the tube bundle is installed into the shell through the cooperation of the main crane and the small crane.

[0004] In the prior art, when installing the tube bundle, it is necessary to manually adjust the position of the tube bundle access end. Only after it is adjusted to be concentric with the shell can the tube bundle be pushed into the heat exchanger, resulting in a large amount of alignment time being wasted during adjustment, which easily reduces work efficiency. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that when the tube bundle is installed, the position of the tube bundle access end needs to be manually adjusted, and the tube bundle can be pushed into the heat exchanger only after it is adjusted to be concentric with the shell, resulting in a large amount of alignment time being wasted during adjustment, which easily reduces the work efficiency. A large-scale upper-supporting tube bundle extraction and installation machine is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A large-scale upper-supporting tube bundle extraction and loading machine comprises a base frame, and also comprises: a support plate fixedly connected to the base frame, wherein an upper-supporting rod is connected to the support plate in a lifting manner, and the top of the upper-supporting rod can be against the bottom of the tube bundle; a clamping plate slidably connected to the support plate, wherein when the clamping plate clamps the outer shell to a limited position, the upper-supporting rod is against the bottom of the tube bundle, and when the clamping plate is detached from the outer shell, the upper-supporting rod is separated from the bottom of the tube bundle.

[0008] In order to facilitate the movement of the upper support plate, preferably, a boosting channel is opened in the support plate, and the cross-sectional diameter of the boosting channel is larger than the cross-sectional diameter of the opening end, the upper support rod is slidably connected to one end of the boosting channel, the top of the upper support rod is fixedly connected to the upper support plate, the bottom of the upper support rod is provided with a piston, the other end of the boosting channel is slidably connected to the boosting rod, one side of the boosting rod is provided with a piston, the other side of the boosting rod is fixedly connected to a pressure plate, and the piston is in contact with the inner wall of the boosting channel.

[0009] In order to facilitate the guiding and movement of the tube bundle, further, the support plate is rotatably connected to a support seat, the support seat is rotatably connected to a guide wheel, and the guide wheel cooperates with the upper supporting rod.

[0010] In order to facilitate the adjustment of the position of the guide wheel, preferably, a groove is opened on the support plate, a first telescopic rod is lifted and lowered in the groove, the end of the first telescopic rod is fixedly connected to a connecting seat, a connecting block is fixedly connected to the bottom of the support seat, and the connecting block is connected to the connecting seat through a rotating shaft.

[0011] In order to facilitate the extension and retraction of the position of the clamping plate, preferably, a second telescopic rod is slidably arranged on the support plate, the clamping plate is rotatably connected to the end of the second telescopic rod, a locking bolt is threadedly connected to the second telescopic rod, and the locking bolt is in contact with the outer wall of the clamping plate.

[0012] In order to facilitate lifting the base frame, preferably, a connecting plate is fixedly connected to the side wall of the base frame, and a through hole is formed on the connecting plate.

[0013] Compared with the prior art, the utility model provides a large-scale upper-lift type pipe bundle extraction and loading machine, which has the following beneficial effects:

[0014] 1. This large-scale upper support type tube bundle extraction and loading machine adjusts the lifting height of the upper support rod by controlling the second telescopic rod. When the upper support rod is higher, the second telescopic rod can be driven to move outward. When the upper support rod is lower, the second telescopic rod can be driven to retract inward, so that the upper support rod can accurately and concentrically position the position of the tube bundle and the position of the outer shell.

[0015] 2. The large-scale upper-supporting tube bundle extraction and installation machine starts the switch of the first telescopic rod to drive the support seat to rotate, and then gradually adjusts the position of the tube bundle in cooperation with the upper support plate, so that it can be quickly adjusted to a position concentric with the shell, and then the tube bundle is pushed into the heat exchanger shell, which reduces the alignment time during adjustment and improves work efficiency;

[0016] 3. The large-scale upper-supporting tube bundle extraction and installation machine can limit the clamping plate by means of locking bolts, and the clamping plate is rotated on the second telescopic rod to change the position of the clamping plate so that it can be adjusted to a suitable position and then clamp and limit the flange on the outer shell.

[0017] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The utility model can use the upper support plate to gradually adjust the position of the tube bundle, and can also be used in conjunction with the support seat so that it can be quickly adjusted to a position concentric with the outer shell, and then the tube bundle is pushed into the heat exchanger shell, thereby reducing the alignment time during adjustment and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a large-scale upper-support type tube bundle extraction and installation machine chassis proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of a large-scale upper-support type pipe bundle extraction and installation machine support base proposed by the utility model;

[0020] Figure 3 This is a schematic cross-sectional structural diagram of a large-scale top-lifting tube bundle extraction and installation machine proposed by the utility model;

[0021] Figure 4 The utility model is a schematic structural diagram of a large-scale upper support type tube bundle extraction and installation machine shell.

[0022] In the figure: 1, base frame; 101, boosting channel; 2, support plate; 201, groove; 3, first telescopic rod; 301, connecting seat; 4, support seat; 401, connecting block; 5, guide wheel; 6, clamping plate; 601, second telescopic rod; 7, boosting rod; 701, pressure plate; 8, upper support rod; 801, upper support plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Example:

[0026] Reference Figure 1-Figure 4 A large-scale top-supporting tube bundle extraction and loading machine includes a base frame 1, on which are mounted a balancing cylinder, a power box, a main crane, a small crane, a driving chain and other devices. The main crane and the small crane are placed on the guide rails of the frame. The main crane is driven by a chain to move forward and backward along the guide rails. A hydraulic device is installed on the main crane. The clamping foot is set at the front end of the guide rail to fix the ends of the tube bundle. The balancing cylinder is set on both sides of the guide rail to ensure the balance of the guide rail. Then, the main crane and the small crane cooperate to load the tube bundle into the shell. Please refer to Figure 4 As shown in the figure, a flange is provided on the shell, which is a shell of a shell and tube heat exchanger. A connecting plate is fixedly connected to the side wall of the base frame 1. The connecting plate is provided with a through hole. A steel cable can be sleeved on the through hole to change the position of the base frame 1.

[0027] A support plate 2 is fixedly connected to the end of the base frame 1 , a boost channel 101 is provided in the support plate 2 , and the cross-sectional diameter of the boost channel 101 is larger than the cross-sectional diameter of the open end, and the boost channel 101 is filled with hydraulic oil.

[0028] Please refer to Figure 3 As shown in the figure, the upper support rod 8 is slidably connected to one end of the boosting channel 101, an upper support plate 801 is fixedly connected to the top of the upper support rod 8, and a piston is arranged at the bottom of the upper support rod 8, and the boosting rod 7 is slidably connected to the other end of the boosting channel 101, a piston is arranged on one side of the boosting rod 7, and a pressure plate 701 is fixedly connected to the other side of the boosting rod 7, and the piston is in contact with the inner wall of the boosting channel 101, and the two groups of pistons are connected by hydraulic oil.

[0029] The cross-sectional diameters of the upper support rod 8 and the boost rod 7 are smaller than the cross-sectional diameters inside the boost channel 101 , which can limit the range of movement of the upper support rod 8 and the boost rod 7 and prevent them from sliding out of the boost channel 101 .

[0030] In addition, a second telescopic rod 601 is slidably arranged on the support plate 2, and the clamping plate 6 is rotatably connected to the end of the second telescopic rod 601, and a locking bolt is threadedly connected to the second telescopic rod 601, and the locking bolt is fitted with the outer wall of the clamping plate 6. The clamping plate 6 can be limited by the locking bolt, and the clamping plate 6 is rotated on the second telescopic rod 601, which can change the position of the clamping plate 6 so that it can be adjusted to a suitable position and then the flange on the outer shell can be clamped and limited.

[0031] A groove 201 is provided on the support plate 2, and a first telescopic rod 3 is lifted and lowered in the groove 201. The end of the first telescopic rod 3 is fixedly connected to a connecting seat 301, and a connecting block 401 is fixedly connected to the bottom of the support seat 4. The connecting block 401 is connected to the connecting seat 301 through a rotating shaft. Here, the first telescopic rod 3 and the second telescopic rod 601 are both driven by hydraulic telescopic rods.

[0032] When the tube bundle needs to be loaded into the shell, the tube bundle is placed on the bottom frame 1, and the hydraulic device on the main crane is mainly used to complete the pulling operation of the tube bundle. During the operation, first install a wire rope at the front end of the hydraulic device, and use the wire rope to drag the tube bundle out of its shell for a distance until the loading end of the tube bundle is moved to the position of the support plate 2. At this time, start the first telescopic rod 3, the support seat 4 will automatically rotate, and the guide wheel 5 on the support seat 4 will abut against the outer wall of the tube bundle, and then adjust the position of the clamping plate 6. At this time, start the switch of the second telescopic rod 601, and then the second telescopic rod 601 will move toward the shell. At this time, the position of the clamping plate 6 is limited by the locking bolt, and the flange on the shell will move to the position between the clamping plate 6 and the support plate 2.

[0033] When the clamping plate 6 needs to clamp the shell to a limit position, the switch of the second telescopic rod 601 is then started to limit the position of the clamping plate 6 and the support plate 2. During this process, the pressure plate 701 will be squeezed, so that the booster rod 7 uses the piston to pressurize the hydraulic oil in the booster channel 101, and then the upper support rod 8 drives the upper support plate 801 to move upward, thereby making the upper support plate 801 abut against the bottom of the tube bundle.

[0034] At this time, the tube bundle can be lifted up and displaced to be positioned at a suitable position. The lifting height of the upper supporting rod 8 can be adjusted by controlling the second telescopic rod 601. When the upper supporting rod 8 is higher, the second telescopic rod 601 can be driven to move outward. When the upper supporting rod 8 is lower, the second telescopic rod 601 can be driven to retract inward, thereby allowing the upper supporting rod 8 to accurately and concentrically position the position of the tube bundle and the position of the outer shell.

[0035] At the same time, the switch of the first telescopic rod 3 can also be started to drive the support seat 4 to rotate, and then the position of the tube bundle can be gradually adjusted in cooperation with the upper support plate 801, so that it can be quickly adjusted to a position concentric with the shell, and then the tube bundle can be pushed into the heat exchanger shell, thereby reducing the alignment time during adjustment and improving work efficiency.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large-scale top-supporting tube bundle extraction and loading machine, comprising a base frame (1), characterized in that: Also includes: a support plate (2) fixedly connected to the base frame (1), Wherein, an upper supporting rod (8) is connected to the support plate (2) in a lifting manner, and the top of the upper supporting rod (8) can abut against the bottom of the tube bundle; a clamping plate (6) slidably connected to the support plate (2), When the clamping plate (6) clamps the outer shell to a limited position, the upper support rod (8) abuts against the bottom of the tube bundle; when the clamping plate (6) and the outer shell are disengaged and loosened, the upper support rod (8) separates from the bottom of the tube bundle; A boosting channel (101) is provided in the support plate (2), and the cross-sectional diameter of the boosting channel (101) is larger than the cross-sectional diameter of the open end; the upper support rod (8) is slidably connected to one end of the boosting channel (101); the top of the upper support rod (8) is fixedly connected to an upper support plate (801); a piston is provided at the bottom of the upper support rod (8); the other end of the boosting channel (101) is slidably connected to a boosting rod (7); a piston is provided on one side of the boosting rod (7); a pressure plate (701) is fixedly connected to the other side of the boosting rod (7); and the piston is in contact with the inner wall of the boosting channel (101).

2. A large-scale top-lifting tube bundle extraction and loading machine according to claim 1, characterized in that: The support plate (2) is rotatably connected to a support seat (4), the support seat (4) is rotatably connected to a guide wheel (5), and the guide wheel (5) cooperates with an upper support rod (8).

3. A large-scale top-lifting tube bundle extraction and loading machine according to claim 2, characterized in that: The support plate (2) is provided with a groove (201), a first telescopic rod (3) is lifted and lowered in the groove (201), an end of the first telescopic rod (3) is fixedly connected to a connecting seat (301), a bottom of the support seat (4) is fixedly connected to a connecting block (401), and the connecting block (401) is connected to the connecting seat (301) via a rotating shaft.

4. A large-scale top-lifting tube bundle extraction and loading machine according to claim 1, characterized in that: A second telescopic rod (601) is slidably arranged on the support plate (2), the clamping plate (6) is rotatably connected to the end of the second telescopic rod (601), a locking bolt is threadedly connected to the second telescopic rod (601), and the locking bolt is in contact with the outer wall of the clamping plate (6).

5. The large-scale top-lifting tube bundle extraction and loading machine according to claim 1 is characterized in that: A connecting plate is fixedly connected to the side wall of the base frame (1), and a through hole is provided on the connecting plate.

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