Boiler anti-abrasion structure convenient to maintain

Abstract

The utility model discloses a boiler anti-abrasion structure convenient to maintain, and relates to the technical field of boiler anti-abrasion, the boiler anti-abrasion structure comprises a plurality of groups of water-cooling pipelines, the two sides of the plurality of groups of water-cooling pipelines are provided with protective replacement assemblies, and the front ends of the protective replacement assemblies are provided with anti-abrasion assemblies. According to the utility model, one side of the water-cooling pipeline, which is seriously abraded, is rotated by 90 degrees, so that the abraded surface is rotated to one side of the moving block, uniform distribution of abrasion can be effectively realized, the service life of the water-cooling pipeline can be prolonged, and the whole water-cooling pipeline is prevented from being replaced in advance due to subsequent continuous abrasion; when the water-cooling pipeline needs to be replaced, a first arc-shaped plate and a second arc-shaped plate are pulled, so that a clamping shaft is separated from a circular groove, fixation of the water-cooling pipeline is relieved, then the water-cooling pipeline needing to be replaced is taken down to be rapidly replaced, the downtime of the boiler is shortened, and then the operation efficiency and usability of the boiler are improved; and the working efficiency is indirectly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler anti-abrasion technical field, concretely is a boiler anti-abrasion structure convenient to maintain. BACKGROUND

[0002] The water cooled wall pipeline in the circulating fluidized bed boiler and the boiling furnace in the domestic industry, power station boiler is in the severe working environment, the rapid drop of high concentration, big flux bed material in the hearth causes the scour of water cooled wall pipeline, the wall -hugging flow formed by the bed material drop strengthens the water cooled wall pipeline heat exchange, but also causes the abrasion of water cooled wall simultaneously, and further water cooled wall pipe burst accident occurs occasionally, therefore, through the anti-abrasion plate, the material particle in wall -hugging flow is blocked, and the material particle falling speed is reduced, thereby the abrasion to water cooled wall pipeline is reduced.

[0003] The existing patent (announcement number: CN221923452U) discloses a boiler anti-abrasion structure convenient to maintain, which can fix the anti-abrasion plate and the water cooled wall body together through the cooperation of the limiting assembly and the locking assembly, and the fixing measure can be very conveniently installed and disassembled, so that the maintenance of the water cooled wall body is not affected by the anti-abrasion structure.

[0004] However, the above technical solution still has certain defects, the device can reduce the abrasion to the water cooled wall pipeline by blocking the material through the anti-abrasion plate, but the pipeline will inevitably be collided by the material particles and cause certain abrasion after long-term use, and the fixed plate is fixed with the pipeline, so the entire pipeline needs to be replaced when replacing, which consumes a large cost, therefore, the boiler anti-abrasion structure convenient to maintain is proposed. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a boiler anti-abrasion structure convenient to maintain to solve the technical problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a boiler anti-abrasion structure convenient to maintain, including water cooled pipeline, the water cooled pipeline is equipped with multiple groups, and the both sides of multiple water cooled pipelines are equipped with protection replacement assemblies, and the front end of protection replacement assembly is equipped with anti-abrasion assembly.

[0007] The protective replacement component includes movable blocks that snap onto both sides of the water-cooled pipe. A fixed block is slidably connected to the side of the movable block away from the water-cooled pipe. A return spring is fixed to one side of the movable block inside the fixed block. Two sets of locking shafts are fixed to the side of the movable block that is in contact with the water-cooled pipe. Two sets of circular grooves for sliding of the locking shafts are opened on the surface of the water-cooled pipe. A groove is opened inside the movable block. A limit spring is installed inside the groove. A movable plate is fixed to one side of the limit spring. A ball bearing is rotatably connected to the end of the movable plate away from the limit spring. Four sets of limit grooves that match the ball bearings are opened on the surface of the water-cooled pipe.

[0008] Preferably, a first arc-shaped plate is fixed to the front end of one set of the movable blocks, and a T-shaped block is fixed to the end of the first arc-shaped plate away from the movable block; a second arc-shaped plate is provided at the front end of the other set of the movable blocks and is slidably connected to the T-shaped block.

[0009] Preferably, the first arc-shaped plate and the second arc-shaped plate are attached to the surface of the water-cooled pipe.

[0010] Preferably, the movable plate is slidably connected to the groove, and the limiting groove is distributed in a circumferential array on the surface of the water-cooled pipe.

[0011] Preferably, the anti-wear component includes two sets of slots opened inside the fixed block, and an arc-shaped block extending to one side of the slot is slidably disposed inside the fixed block. A spring telescopic rod is installed at the end of the arc-shaped block away from the slot, and an L-shaped connecting rod is fixed on one side of the arc-shaped block.

[0012] Preferably, a card block is slidably connected inside the card slot, and an anti-wear plate is fixed on the side of the card block away from the card slot, and a square groove matching the arc-shaped block is opened inside the card block.

[0013] Preferably, a support block is welded to the front end of the fixing block, and the top end of the support block is in contact with the bottom end of the wear-resistant plate.

[0014] In summary, the present invention has the following main advantages:

[0015] This invention rotates the more severely worn side of the water-cooled pipe by 90 degrees, causing the ball bearings to engage with another set of limiting grooves, preventing the pipe from rotating during use. Simultaneously, the worn surface rotates back to the moving block side, effectively achieving a uniform distribution of wear and extending the service life of the water-cooled pipe. This avoids premature replacement due to continued wear. When replacement is needed, pulling the first and second arc-shaped plates disengages the retaining shaft from the circular groove, releasing the pipe from its fixation. The pipe to be replaced can then be quickly removed and replaced, reducing boiler downtime and improving boiler operating efficiency and availability, indirectly increasing overall work efficiency.

[0016] The utility model discloses a support block is placed to the anti -wear board, and then pushes the anti -wear board, and makes the clamping block insert the inside of the card slot, and the arc -shaped piece is embedded the inside of square groove, and the fixing of anti -wear board is completed, when needing to disassemble, pull L type connecting rod and make arc -shaped piece separate from square groove, and then complete the quick installation and disassembly, improve the work efficiency of staff BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall assembly schematic diagram of the utility model;

[0018] Figure 2 It is the local assembly expansion schematic diagram of the utility model;

[0019] Figure 3 It is the Figure 2 Enlarged view of A in the middle;

[0020] Figure 4 It is the protective replacement assembly schematic diagram of the utility model;

[0021] Figure 5 It is the anti -wear assembly schematic diagram of the utility model

[0022] Figure 6 It is the Figure 5 Enlarged view of B in the middle。

[0023] In the drawing: 100, water cooling pipeline;

[0024] 200, protective replacement assembly;210, moving block;220, fixed block;230, reset spring;240, clamping shaft;241, circular slot;250, first arc plate;251, T -shaped block;260, second arc plate;270, recess;280, limit spring;290, movable plate;2910, ball;2911, limit slot;

[0025] 300, anti -wear assembly;310, card slot;320, arc -shaped piece;321, L type connecting rod;330, spring telescopic rod;340, clamping block;341, square groove;350, anti -wear board;360, support block. DETAILED DESCRIPTION

[0026] The technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings of the utility model embodiment. The embodiment described below with reference to the drawings is exemplary and is only used for explaining the utility model, and cannot be understood as limiting the utility model.

[0027] The embodiment will be described below according to the overall structure of the utility model.

[0028] A kind of boiler anti -wear structure of convenient maintenance, such as Figures 1-6As shown, including water cooling pipe 100, water cooling pipe 100 is provided with a plurality of groups, the two sides of the plurality of groups of water cooling pipe 100 are provided with protective replacement assembly 200, the front end of protective replacement assembly 200 is provided with anti-abrasion assembly 300;

[0029] Protective replacement assembly 200 includes a mobile block 210 clamped on both sides of water cooling pipe 100, the side of mobile block 210 away from water cooling pipe 100 is slidingly connected with a fixed block 220, the inside of fixed block 220 is provided with a reset spring 230 fixed to one side of mobile block 210, the side of mobile block 210 close to water cooling pipe 100 is fixed with two groups of clamping shafts 240, the surface of water cooling pipe 100 is provided with two groups of circular grooves 241 for sliding clamping shafts 240, the inside of mobile block 210 is provided with a recess 270, the inside of recess 270 is mounted with a limiting spring 280, the side of limiting spring 280 is fixed with a movable plate 290, the end of movable plate 290 away from limiting spring 280 is rotatably connected with a ball 2910, the surface of water cooling pipe 100 is provided with four groups of limiting grooves 2911 for abutting balls 2910, the front end of one group of mobile blocks 210 is fixed with a first arc plate 250, the end of first arc plate 250 away from mobile block 210 is fixed with a T-shaped block 251, the front end of the other group of mobile blocks 210 is provided with a second arc plate 260 slidingly connected with T-shaped block 251, first arc plate 250 and second arc plate 260 are close to the surface of water cooling pipe 100.

[0030] Through anti-abrasion assembly 300, water cooling pipe 100 can be effectively prevented from being abraded, but after long-term use, water cooling pipe 100 will inevitably be abraded by material particles, at this time, the staff rotates the side of water cooling pipe 100 with more serious abrasion by ninety degrees, when water cooling pipe 100 rotates, ball 2910 rolls and drives movable plate 290 to extrude limiting spring 280 to shrink inward, so that ball 2910 is separated from one group of limiting grooves 2911, after rotation, ball 2910 and the other group of limiting grooves 2911 are clamped, which prevents the pipe from rotating during use, and the abrasion surface is rotated to the side of mobile block 210, which can effectively realize uniform distribution of abrasion, so that the service life of water cooling pipe 100 can be prolonged, and the staff can avoid replacing the whole water cooling pipe 100 due to continuous abrasion, when water cooling pipe 100 needs to be replaced, first arc plate 250 and second arc plate 260 are pulled to drive both sides of mobile block 210 to extrude reset spring 230 and move to the inside of fixed block 220, when the two arc plates move, clamping shaft 240 moves synchronously until clamping shaft 240 is separated from circular groove 241, so that water cooling pipe 100 is released, then the water cooling pipe 100 to be replaced is taken down for quick replacement, which reduces the downtime of the boiler, improves the operation efficiency and availability of the boiler, and indirectly improves the work efficiency.

[0031] Please focus on referring to Figures 2 to 4 , the movable plate 290 is in sliding connection with the groove 270, and a circular array of limiting grooves 2911 is distributed on the surface of the water-cooling pipe 100.

[0032] The movable plate 290 can extrude the limiting spring 280 to drive the ball 2910 to shrink inward, so as to facilitate the limiting clamping of the plurality of limiting grooves 2911 on the water-cooling pipe 100.

[0033] Please focus on referring to Figure 5 and Figure 6 , the anti-abrasion assembly 300 comprises two groups of clamping grooves 310 opened in the inner part of the fixed block 220, and the inner part of the fixed block 220 is slidingly provided with an arc-shaped block 320 extending to one side of the clamping groove 310, one end of the arc-shaped block 320 away from the clamping groove 310 is provided with a spring telescopic rod 330, one side of the arc-shaped block 320 is fixedly provided with an L-shaped connecting rod 321, the inner part of the clamping groove 310 is slidingly connected with a clamping block 340, one side of the clamping block 340 away from the clamping groove 310 is fixedly provided with an anti-abrasion plate 350, and the inner part of the clamping block 340 is provided with a square groove 341 matching the arc-shaped block 320.

[0034] By placing the anti-abrasion plate 350 on the supporting block 360, then pushing the anti-abrasion plate 350, the clamping block 340 is inserted into the inner part of the clamping groove 310, when the clamping block 340 and the arc-shaped block 320 abut, the arc-shaped block 320 will extrude the spring telescopic rod 330 to shrink inward, until the clamping block 340 moves to the bottom end of the clamping groove 310, under the action of the spring telescopic rod 330, the arc-shaped block 320 is embedded in the inner part of the square groove 341, the fixing of the anti-abrasion plate 350 is completed, when disassembling, pulling the L-shaped connecting rod 321 to make the arc-shaped block 320 separate from the square groove 341, and then the quick installation and disassembly is completed, the work efficiency of the workers is improved.

[0035] Please focus on referring to Figure 1 and Figure 2 , the front end of the fixed block 220 is welded with a supporting block 360, and the top end of the supporting block 360 is in close contact with the bottom end of the anti-abrasion plate 350.

[0036] The supporting block 360 can better support the anti-abrasion plate 350 installed on the fixed block 220.

[0037] In use, by rotating the water cooling pipe 100 by ninety degrees on the side with more serious wear, the ball 2910 is engaged with the other set of limiting grooves 2911, preventing the pipe from rotating in use, and the wear surface is rotated to the side of the moving block 210, effectively achieving uniform distribution of wear, extending the service life of the water cooling pipe 100, and avoiding the need to replace the entire water cooling pipe 100 due to continued wear. When the water cooling pipe 100 needs to be replaced, the first arc plate 250 and the second arc plate 260 are pulled to disengage the shaft 240 from the circular groove 241, releasing the fixation of the water cooling pipe 100, and then the water cooling pipe 100 to be replaced is removed for quick replacement, reducing the downtime of the boiler and improving the operating efficiency and availability of the boiler, indirectly improving work efficiency. By placing the wear plate 350 on the support block 360, then pushing the wear plate 350, the clamping block 340 is inserted into the inner part of the clamping groove 310, and the arc block 320 is embedded in the square groove 341, completing the fixation of the wear plate 350. When disassembling, the L-shaped connecting rod 321 is pulled to disengage the arc block 320 from the square groove 341, and the quick installation and disassembly are completed, improving the work efficiency of the workers. The parts not involved in the device are the same as the existing technology or can be realized by using the existing technology.

[0038] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A boiler anti-wear structure for easy maintenance comprising a water cooled tube (100) characterised in that: The water-cooled pipeline (100) is provided with a plurality of groups, and the two sides of each group of the water-cooled pipeline (100) are provided with a protective replacement assembly (200), and the front end of the protective replacement assembly (200) is provided with an anti-abrasion assembly (300). The protective replacement assembly (200) comprises a moving block (210) clamped on the two sides of the water-cooled pipeline (100), a fixed block (220) slidably connected to the side of the moving block (210) away from the water-cooled pipeline (100), a reset spring (230) fixed to one side of the moving block (210) in the fixed block (220), two groups of clamping shafts (240) fixed to one side of the moving block (210) abutting the water-cooled pipeline (100), two groups of circular grooves (241) formed in the surface of the water-cooled pipeline (100) for sliding of the clamping shafts (240), a recess (270) formed in the moving block (210), a limiting spring (280) mounted in the recess (270), an activity plate (290) fixed to one side of the limiting spring (280), a ball (2910) rotatably connected to the end of the activity plate (290) away from the limiting spring (280), and four groups of limiting grooves (2911) formed in the surface of the water-cooled pipeline (100) for abutting the balls (2910).

2. The boiler anti-wear structure of claim 1, wherein: The front end of one group of the moving blocks (210) is fixed with a first arc-shaped plate (250), and the end of the first arc-shaped plate (250) away from the moving block (210) is fixed with a T-shaped block (251); and the front end of the other group of the moving blocks (210) is provided with a second arc-shaped plate (260) slidably connected with the T-shaped block (251).

3. A boiler anti-wear structure of the type defined in claim 2, characterised in that: The first arc-shaped plate (250) and the second arc-shaped plate (260) are abutted to the surface of the water-cooled pipeline (100).

4. The easily maintained boiler anti-wear structure according to claim 1, characterized in that: The activity plate (290) is slidably connected with the recess (270), and the limiting grooves (2911) are circumferentially arranged on the surface of the water-cooled pipeline (100).

5. The easily maintained boiler anti-wear structure according to claim 1, characterized in that: The anti-abrasion assembly (300) comprises two groups of clamping grooves (310) formed in the fixed block (220), an arc-shaped block (320) slidably arranged in the fixed block (220) and extending to one side of the clamping groove (310), a spring telescopic rod (330) mounted at the end of the arc-shaped block (320) away from the clamping groove (310), and an L-shaped connecting rod (321) fixed to one side of the arc-shaped block (320).

6. A boiler anti-wear structure for easy maintenance according to claim 5, characterized in that: The clamping groove (310) is slidably connected with a clamping block (340), the clamping block (340) is fixed with an anti-abrasion plate (350) at the side away from the clamping groove (310), and a square groove (341) abutting the arc-shaped block (320) is formed in the clamping block (340).

7. The easily maintained boiler anti-wear structure according to claim 1, characterized in that: The front end of the fixed block (220) is welded with a supporting block (360), and the top end of the supporting block (360) is abutted to the bottom end of the anti-abrasion plate (350).

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