Special tool for disassembling and assembling steam pocket manhole door

Abstract

The utility model discloses a special tool for disassembling and assembling a steam pocket manhole door, which comprises a support frame, a steam pocket manhole door and a steam pocket manhole door, the stretching part is arranged on the supporting frame; the flexible connecting part is arranged on the stretching part, the stretching part pulls the flexible connecting part to move, the flexible connecting part is used for being connected with a bubble manhole door, and the stretching part pulls the bubble manhole door through the flexible connecting part; the number of the mounting parts is four, the mounting parts are arranged on four inner corners of one side of the supporting frame and used for mounting the supporting frame on equipment, and the stretching part comprises a supporting rod arranged on the supporting frame and a stud arranged in the supporting rod; the sliding chute body is arranged at one end of the stud; and the longitudinal section of the chute body is C-shaped. According to the utility model, the situation that adjacent high-pressure water supply pipeline valves and platform railings can only be used as acting points in the manhole door reassembly process is avoided, the situation that centering is not easy due to hard connection is eliminated, and the situation of repeated adjustment is prevented.

Description

Technical Field

[0001] This utility model relates to the field of manhole door disassembly and assembly technology, and in particular to a special tool for disassembling and assembling a steam drum manhole door. Background Technology

[0002] The steam drum is an important component of the boiler system in a power plant. The steam drum manhole has strict sealing requirements, so the closure of the steam drum manhole needs to be done very meticulously and precisely. The steam drum manhole is a circular self-sealing door used to close the steam drum manhole. On average, the steam drum needs to be internally inspected every year to check the steam and water quality and internal components such as the cyclone separator, and the steam drum manhole door needs to be disassembled and reassembled.

[0003] The prior art discloses a manhole door disassembly and assembly tool (202120713381.3), comprising: a disassembly and assembly component and a fixed connection component. The disassembly and assembly component includes an operating rod and a first connecting member connected to the operating rod; the fixed connection component includes a fixing member and at least one second connecting member disposed on one side along the thickness direction of the fixing member. By using the disassembly and assembly component and the fixed connection component in cooperation, the manhole door can be rotated as the operating rod is rotated, so as to realize the disassembly and assembly of the manhole door. However, there are still the following shortcomings: at present, only the low-pressure steam drum can rely on the steel beam to make a hanging point. There is no fixed steel beam or anchoring structure at the high and medium pressure steam drums. During the reassembly of the manhole door, it can only rely on the adjacent high-pressure water supply pipe valve and platform railing as the force point, which may damage the water pipe valve and platform railing, and use rigid connections such as telescopic rods for stretching. The rigid connection makes it difficult to align, which may lead to repeated adjustments. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned shortcomings by providing a special tool for disassembling and assembling steam drum manhole doors. This tool avoids the need to rely solely on adjacent high-pressure water supply pipe valves and platform railings as leverage points during manhole door reassembly, eliminating the difficulty in alignment caused by rigid connections and preventing repeated adjustments.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a special tool for disassembling and assembling a steam drum manhole door, comprising:

[0006] The support frame is installed at the corresponding location of the bubble manhole door;

[0007] The tensioning section is mounted on the support frame;

[0008] A flexible connection is provided on the tension part, the tension part pulls the flexible connection to move, the flexible connection is used to connect the air bubble manhole door, and the tension part pulls the air bubble manhole door through the flexible connection.

[0009] There are four mounting sections, located at the four inner corners of one side of the support frame, for mounting the support frame on the equipment.

[0010] Furthermore, the tensioning part includes a support rod disposed on the support frame and a stud disposed within the support rod;

[0011] It also includes a sliding groove body disposed at one end of the stud, wherein a slider is provided in the sliding groove body;

[0012] It also includes a handle located at the other end of the stud.

[0013] Furthermore, the slider rotates inside the groove body.

[0014] Furthermore, the flexible connection includes a chain disposed on the slider;

[0015] It also includes hooks at the end of the chain for attaching to manhole doors.

[0016] Furthermore, the mounting part includes a mounting plate disposed on the support frame, and the mounting plate has a mounting groove;

[0017] It also includes a screw on the mounting plate and a nut on the screw for mounting in the mounting slot of the mounting plate.

[0018] Furthermore, the mounting part also includes a telescopic rod disposed on the screw, and the end of the telescopic rod is provided with a flange for mounting with the equipment.

[0019] The beneficial effects of this utility model are reflected in:

[0020] This invention utilizes a telescopic rod on the mounting section to install onto a mounting plate, which in turn is mounted onto a support frame. The telescopic rod and flange on the mounting section then connect to the equipment. This avoids relying solely on adjacent high-pressure water supply pipe valves and platform railings as leverage points during manhole door reinstallation, preventing damage to these components. The flexible connection hooks then attach to the manhole door, and a chain connects it to the tension section. The flexible connection eliminates the misalignment issues associated with rigid connections, preventing repeated adjustments. A slider rotates within a groove on the stud, and the handle drives the stud to rotate within the support rod. This prevents excessive chain twisting during stud rotation and avoids the chain driving the hook. The stud pulls the flexible connection and manhole door to install the manhole door pressure plate, eliminating the risk of suspending heavy objects from pipes and railings and mitigating adverse environmental impacts. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a left-side stereoscopic view of the present invention;

[0023] Figure 3 This is a perspective view of the stretching part of this utility model;

[0024] Figure 4 This is a three-dimensional view of the stretching part of this utility model.

[0025] In the picture:

[0026] 1. Support frame;

[0027] 2. Tensioning section; 21. Support rod; 22. Stud; 23. Slide body; 24. Slider; 25. Rotary handle;

[0028] 3. Flexible connection; 31. Chain; 32. Hook;

[0029] 4. Installation section; 41. Mounting plate; 42. Telescopic rod; 43. Flange. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0031] Please see Figure 1-4 This utility model discloses a special tool for disassembling and assembling a steam drum manhole door, comprising:

[0032] Support frame 1 is installed at the corresponding position of the bubble manhole door to support the tensioning part 2.

[0033] The tensioning part 2 is rotatably mounted on the support frame 1. The support frame 1 is made of 40mm channel steel with holes punched in it. The channel steel of the support frame 1 is fixed by welding. The support frame 1 has a cubic frame structure and is used to support the tensioning part 2 and the mounting part 4.

[0034] The flexible connection 3 is fixedly mounted on the tension part 2. The tension part 2 pulls the flexible connection 3 to move. The flexible connection 3 is used to connect the air bubble manhole. The tension part 2 pulls the air bubble manhole through the flexible connection 3. The tension part 2 and the flexible connection 3 are fixed by welding. The flexible connection 3 avoids deformation of the tension part and prevents displacement of the sealing gasket. It eliminates the need for multiple adjustments, reduces workload, effectively eliminates local stress, and facilitates alignment.

[0035] There are four mounting parts 4, which are fixedly installed on the four inner corners of one side of the support frame 1. They are used to install the support frame 1 on the equipment. The mounting parts 4 are used to connect the support frame 1 and the equipment to prevent the support frame 1 from relying solely on the adjacent high-pressure water supply pipe valve and platform railing as the force point during the reinstallation of the manhole door, thus avoiding damage to the water pipe valve and platform railing.

[0036] In a specific embodiment, the tensioning part 2 includes a support rod 21 fixedly mounted on the support frame 1 and a stud 22 disposed inside the support rod 21. The support frame 1 is fixed to the support rod 21 by welding. A threaded cylinder is fixedly mounted inside the support rod 21. The threaded cylinder is threadedly connected to the stud 22. The stud 22 moves on the threaded cylinder of the support rod 21.

[0037] It also includes a sliding groove 23 at one end of the stud 22, and a slider 24 is provided in the sliding groove 23. The stud 22 and the sliding groove 23 are installed by bolts. The slider 24 rotates in the sliding groove 23 to avoid excessive twisting of the flexible connection 3 and to prevent the bubble manhole door panel from rotating.

[0038] It also includes a shank 25 located at the other end of the stud 22. The stud 22 is welded to the shank 25, and the shank 25 is used to drive the stud 22 to rotate.

[0039] In one embodiment, the longitudinal section of the chute 23 is C-shaped, and the chute 23 is cylindrical;

[0040] The longitudinal section of slider 24 is T-shaped, and slider 24 is a T-shaped column;

[0041] The slider 24 rotates inside the slide body 23 to prevent the slider 24 from falling out of the slide body 23, and to prevent the stud 22 from driving the bubble manhole door plate to rotate.

[0042] In a specific embodiment, the flexible connection 3 includes a chain 31 disposed on the slider 24. The chain 31 and the slider 24 are welded together. The slider 24 is used to prevent the chain 31 from rotating and to drive the chain 31 to move. The chain 31 prevents the stud 22 from deforming, avoids displacement of the sealing gasket, eliminates the need for multiple adjustments, reduces workload, effectively eliminates local stress, and facilitates the centering of the bubble manhole door panel.

[0043] It also includes a hook 32 at the end of the chain 31 for attaching to the manhole door. The chain 31 and the hook 32 are hinged together, and the hook 32 is used to attach the bubble manhole door panel.

[0044] In one embodiment, the mounting part 4 includes a mounting plate 41 disposed on the support frame 1. The mounting plate 41 is provided with a mounting groove. The mounting plate 41 is a triangular plate, and the mounting groove is a circular and rectangular through groove.

[0045] It also includes a screw and a nut on the mounting plate 41 for mounting in the mounting groove of the mounting plate 41. The screw and nut are used to fix the telescopic rod 42 to the mounting plate 41.

[0046] In a specific embodiment, the installation part 4 also includes a telescopic rod 42 mounted on the screw. The end of the telescopic rod 42 is provided with a flange 43 for installation with the equipment. The telescopic rod 42 is used to adjust the positional distance between the support frame 1 and the equipment to prevent the pipelines on the equipment from blocking it. The telescopic rod 42 is installed with the screw by bolts, and the flange 43 is welded to the telescopic rod 42. The flange 43 and bolts are used to install on the equipment, avoiding the situation where the manhole door can only rely on the adjacent high-pressure water supply pipe valve and platform railing as the point of force during reinstallation.

[0047] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0048] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0049] Additionally, "multiple" refers to two or more.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special tool for dismounting and mounting a manhole door of a steam drum, characterized in that, include: Support frame (1) is installed at the corresponding position of the bubble manhole door; The tensioning part (2) is provided on the support frame (1); A flexible connection (3) is provided on the tension part (2). The tension part (2) pulls the flexible connection (3) to move. The flexible connection (3) is used to connect the air bubble manhole door. The tension part (2) pulls the air bubble manhole door through the flexible connection (3). The mounting parts (4) are four in number and are located at the four inner corners of one side of the support frame (1) for mounting the support frame (1) on the equipment.

2. The special tool for disassembling and assembling a steam drum manhole door according to claim 1, characterized in that: The tensioning part (2) includes a support rod (21) disposed on the support frame (1) and a stud (22) disposed inside the support rod (21); It also includes a sliding groove (23) provided at one end of the stud (22), and a slider (24) is provided in the sliding groove (23); It also includes a shank (25) located at the other end of the stud (22).

3. The special tool for dismounting and mounting the manhole door of the steam drum according to claim 2, characterized in that: The slider (24) rotates inside the slide body (23).

4. The special tool for dismounting and mounting the manhole door of the steam drum according to claim 2, characterized in that: The flexible connection (3) includes a chain (31) disposed on the slider (24); It also includes a hook (32) provided at the end of the chain (31) for attaching to the manhole door.

5. The special tool for dismounting and mounting the manhole door of the steam drum according to claim 1, characterized in that: The mounting part (4) includes a mounting plate (41) disposed on the support frame (1), and the mounting plate (41) is provided with a mounting groove; It also includes a screw and a nut on the mounting plate (41) for mounting in the mounting slot of the mounting plate (41).

6. The tool for dismounting the manhole door of the steam drum according to claim 5, characterized in that: The mounting part (4) also includes a telescopic rod (42) provided on the screw, and the end of the telescopic rod (42) is provided with a flange (43) for mounting with the equipment.

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