Waste heat boiler overhauling device

Abstract

The utility model relates to a waste heat boiler overhauling device which is characterized in that a pulley is arranged on a sliding rail, a pulley shaft penetrates through the center of the pulley, two ends of the pulley shaft are connected with a pulley outer cover, and a lifting lug is arranged on the outer surface of the pulley outer cover; the connecting parts are arranged at the two ends of the chain, the hooks are arranged on the connecting parts, one end of the chain block is hung on the lifting lug through the hooks, and an overhaul piece needing to be overhauled is hung at the other end of the chain block. According to the device, the pulley block, the sliding rail and the chain block are matched for use, so that quick hoisting and moving of a maintenance part are realized, and the labor intensity and the time cost of manual carrying are greatly reduced; the adjusting device of the chain block can quickly adjust the length of the chain, so that the overhauling requirements of different heights and positions are met, and the overhauling efficiency is further improved; and the connecting part adopts a rotary structure, so that the hook can easily meet the hanging requirements of various angles, and the flexibility of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat boiler maintenance equipment, in particular to a waste heat boiler maintenance device. Background Art

[0002] In industrial production, waste heat boilers (HRSGs), as an important energy recovery device, are widely used in the steel, chemical, and power industries. HRSGs recycle and utilize waste heat generated during the production process, converting it into steam or hot water, thereby reusing energy and improving energy efficiency. However, because HRSGs operate under high temperatures, high pressures, and corrosive environments for a long time, their components are susceptible to wear, corrosion, and aging. Regular inspection and maintenance are therefore required to ensure proper operation and extend the lifespan of the equipment. Traditional HRSG inspection and maintenance methods rely primarily on manually erecting scaffolding or using lifting equipment to remove and install parts. However, these methods have numerous drawbacks. First, manually erecting scaffolding is not only time-consuming and labor-intensive, but also poses significant safety risks during overhead operations. Second, the use of lifting equipment for inspection and maintenance often struggles to adapt to the complex and changing maintenance environment within the HRSG due to its limited mobility and flexibility. Utility Model Content

[0003] In response to the problems in the above-mentioned prior art that manual disassembly is time-consuming and labor-intensive, high-altitude operations are risky, and the mobility and flexibility of lifting equipment are poor, the utility model provides a waste heat boiler maintenance device, which can achieve fast, safe and efficient lifting and movement of maintenance parts through the coordinated use of pulley sets, slide rails and fall chains.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A kind of waste heat boiler overhauling device, including pulley block, slide rail and chain block;The pulley block includes pulley, pulley axle, pulley cover and lifting lug;The pulley is arranged on the slide rail, and the slide rail is equipped with limiting device at both ends;The pulley axle passes through the center of the pulley, and the pulley axle is connected with the pulley cover at both ends, the inside of the pulley cover is equipped with lubricating device, and the outer surface of the pulley cover is equipped with the lifting lug;The chain block includes cable chain, connecting part and hook;The cable chain is equipped with length-adjustable adjusting device, and the adjusting device includes two sliding rings, connecting column and two locking bolts, the two sliding rings can slide on the cable chain, and the two sliding rings are connected by the connecting column, and the two sliding rings are respectively equipped with the locking bolt for fixing the relative position of the sliding ring and the cable chain;The two ends of the cable chain are equipped with the connecting part, and the connecting part is rotatable structure;The connecting part is equipped with the hook, and the hook is equipped with safety lock buckle;One end of the chain block is hung on the lifting lug by the hook, and the other end of the chain block is hung with the overhauling piece needing overhauling.

[0006] Further, the lighting device is arranged on the outer surface of the pulley cover.

[0007] Further, a plurality of pulleys are arranged in the pulley block.

[0008] Further, the pulley is connected with driving device.

[0009] Further, the lubricating device includes oil groove arranged between the pulley axle and the pulley cover, and the oil groove is equipped with oil filling port.

[0010] Further, the slide rail is I-shaped slide rail.

[0011] Further, the limiting device at both ends of the slide rail includes limiting block and buffer pad.

[0012] Further, the rotatable structure of the connecting part includes bearing and rotating shaft arranged in the connecting part.

[0013] Compared with the prior art, the beneficial effects of the present application are as follows:

[0014] The utility model provides a kind of waste heat boiler overhauling device, the device is cooperated by pulley block, slide rail and chain block, the quick hoisting and moving of overhaul piece are realized, greatly reduce the labor intensity and time cost of artificial handling, improve the overhaul efficiency;The length of cable chain can be quickly adjusted by the adjusting device of chain block, to adapt to the overhaul demand of different height and position, further improve the overhaul efficiency;The connecting portion adopts rotary structure, so that hook can easily adapt to the mounting demand of various angles, further improve the flexibility of device;The lubricating device arranged in the pulley cover effectively reduces the friction between pulley and slide rail, prolongs the service life of equipment;The safety lock catch arranged on hook ensures the stability of overhaul piece in hoisting process, prevents the safety accident caused by falling. BRIEF DESCRIPTION OF DRAWINGS

[0015] The embodiments of the utility model are further described below with reference to the drawings, and specifically:

[0016] Figure 1 The structure schematic diagram of waste heat boiler overhauling device embodiment is shown;

[0017] Drawing mark: 1-pulley block, 101-pulley, 102-pulley axle, 103-pulley cover, 104-lifting lug, 2-slide rail, 301-cable chain, 302-connecting portion, 303-hook, 4-overhaul piece. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail by specific embodiment below with reference to the drawings.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0019] Reference is made to the drawings Figure 1, a waste heat boiler maintenance device, including a pulley block 1, a slide rail 2 and a fall chain; the pulley block 1 includes a pulley 101, a pulley shaft 102, a pulley cover 103 and a lifting lug 104; the pulley 101 is set on the slide rail 2, and a limit device is provided at both ends of the slide rail 2; the pulley shaft 102 passes through the center of the pulley 101, and the two ends of the pulley shaft 102 are connected to the pulley cover 103, the interior of the pulley cover 103 is provided with a lubrication device, and the outer surface of the pulley cover 103 is provided with a lifting lug 104; the fall chain includes a cable chain 301, a connecting part 302 and a hook 303; the cable chain 301 is provided with a length adjustable The adjusting device includes two sliding rings, a connecting column and two locking bolts. The two sliding rings can slide on the chain 301 and are connected by a connecting column. The two sliding rings are respectively provided with locking bolts for fixing the relative positions of the sliding rings and the chain 301; both ends of the chain 301 are provided with a connecting part 302, and the connecting part 302 is a rotating structure; the connecting part 302 is provided with a hook 303, and the hook 303 is provided with a safety lock; one end of the fall chain is hung on the lifting ear 104 through the hook 303, and the other end of the fall chain is hung with an inspection part 4 that needs to be inspected.

[0020] In one embodiment of the present invention, a lighting device is further included. The lighting device is arranged on the outer surface of the pulley cover 103. The lighting device provides sufficient lighting conditions for maintenance personnel to ensure operation safety.

[0021] In one embodiment of the present invention, a plurality of pulleys 101 are provided in the pulley assembly 1 .

[0022] In one embodiment of the present invention, the pulley 101 is connected to a driving device.

[0023] In one embodiment of the present invention, the lubricating device includes an oil tank provided between the pulley shaft 102 and the pulley cover 103 , and an oil filling port is provided on the oil tank.

[0024] In one embodiment of the present invention, the slide rail 2 is an I-shaped slide rail.

[0025] In one embodiment of the present invention, the limiting devices at both ends of the slide rail 2 include limiting blocks and buffer pads to ensure that the pulley block 1 moves within a specified range to prevent derailment or collision with the end of the slide rail 2.

[0026] In one embodiment of the present invention, the rotary structure of the connecting portion 302 includes a bearing and a rotating shaft disposed inside the connecting portion 302 , so that the connecting portion 302 can rotate freely relative to the chain 301 to adapt to mounting requirements at different angles.

[0027] When in use, lay the slide rail 2 as required, install the pulley block 1 on the slide rail 2, and hang one end of the fall chain on the lifting ear 104 through the hook 303. First, fix a sliding ring in the adjusting device to the chain 301 through a locking bolt, adjust the length of the chain 301 between the two sliding rings so that the hook 303 at the other end of the fall chain can be hung on the inspection part 4, and then fix the other sliding ring in the adjusting device to the appropriate position of the chain 301 through the locking bolt; lift the inspection part 4, turn on the driving device, and the pulley block 1 drives the inspection part 4 to move along the slide rail 2.

[0028] The utility model provides a waste heat boiler maintenance device, which realizes the rapid lifting and movement of maintenance parts through the coordinated use of a pulley group, a slide rail and a fall chain, greatly reduces the labor intensity and time cost of manual handling, and improves the maintenance efficiency; the adjustment device of the fall chain can quickly adjust the length of the chain to adapt to the maintenance needs of different heights and positions, and further improves the maintenance efficiency; the connection part adopts a rotating structure, so that the hook can easily adapt to the mounting needs of various angles, and further enhances the flexibility of the device; the lubrication device arranged inside the pulley cover effectively reduces the friction between the pulley and the slide rail, and extends the service life of the equipment; the safety lock arranged on the hook ensures the stability of the maintenance part during the lifting process, and prevents safety accidents caused by falling off.

[0029] Some exemplary embodiments of the present invention are described above. It will be understood that the above embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention. The features in these embodiments can be recombined in an appropriate manner, and the solutions obtained thereby are still within the scope of protection claimed by the present invention. Based on the above embodiments, all other embodiments obtained by those skilled in the art without making any creative work, that is, all modifications, equivalent substitutions and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by the present invention.

Claims

1. A waste heat boiler maintenance device, characterized in that: The invention comprises a pulley block (1), a slide rail (2) and a fall chain; the pulley block (1) comprises a pulley (101), a pulley shaft (102), a pulley cover (103) and a lifting lug (104); the pulley (101) is arranged on the slide rail (2), and both ends of the slide rail (2) are provided with a limit device; the pulley shaft (102) passes through the center of the pulley (101), and both ends of the pulley shaft (102) are connected to the pulley cover (103); a lubricating device is provided inside the pulley cover (103), and the outer surface of the pulley cover (103) is provided with the lifting lug (104); the fall chain comprises a cable chain (301), a connecting portion (302) and a hook (303); the cable chain (301) is provided with an adjustment lug capable of adjusting the length. The adjusting device comprises two sliding rings, a connecting column and two locking bolts, the two sliding rings can slide on the chain (301), and the two sliding rings are connected by the connecting column, and the two sliding rings are respectively provided with the locking bolts for fixing the relative positions of the sliding rings and the chain (301); both ends of the chain (301) are provided with the connecting part (302), and the connecting part (302) is a rotating structure; the connecting part (302) is provided with the hook (303), and the hook (303) is provided with a safety lock; one end of the fall chain is hung on the lifting ear (104) through the hook (303), and the other end of the fall chain is hung with an inspection part (4) that needs to be inspected.

2. A waste heat boiler maintenance device according to claim 1, characterized in that: It also includes a lighting device, which is arranged on the outer surface of the pulley cover (103).

3. The waste heat boiler maintenance device according to claim 1, characterized in that: The pulley block (1) is provided with a plurality of pulleys (101).

4. A waste heat boiler maintenance device according to claim 1 or 3, characterized in that: The pulley (101) is connected to a driving device.

5. The waste heat boiler maintenance device according to claim 1, characterized in that: The lubricating device comprises an oil groove arranged between the pulley shaft (102) and the pulley outer cover (103), and an oil filling port is provided on the oil groove.

6. The waste heat boiler maintenance device according to claim 1, characterized in that: The slide rail (2) is an I-shaped slide rail.

7. A waste heat boiler maintenance device according to claim 1 or 6, characterized in that: The limiting devices at both ends of the slide rail (2) include limiting blocks and buffer pads.

8. The waste heat boiler maintenance device according to claim 1, characterized in that: The rotary structure of the connecting portion (302) includes a bearing and a rotating shaft arranged inside the connecting portion (302).

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