Anti-abrasion device for boiler heating surface pipeline

Abstract

The utility model discloses a boiler heating surface pipeline anti-abrasion device in the technical field of pipeline anti-abrasion, which comprises an anti-abrasion tile and clamping rings, and is characterized in that the clamping rings are arranged at the upper end and the lower end of the anti-abrasion tile, the clamping rings can be sleeved on an external boiler pipeline, the anti-abrasion tile is arranged on the windward side of the boiler pipeline, and each clamping ring comprises a fixed ring, a sliding ring and a push block, according to the device, the sliding ring capable of sliding is arranged on the fixing ring, when the anti-abrasion tile is installed, only the non-deformable ring body needs to be pushed, the non-deformable ring body drives the deformable ring body to be inserted into the sliding cavity, then the deformable ring body can be fastened through the rotating rod, and therefore the anti-abrasion tile is fixed in the boiler pipeline; and meanwhile, due to the fact that the deformable ring body is inserted into the sliding cavity under the driving of the non-deformable ring body, the situation that the deformable ring body is dislocated or cannot be inserted is avoided, and a worker does not need to transfer the deformable ring body to the back side of the boiler pipeline for operation.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline anti-wear, in particular to a boiler heating surface pipeline anti-wear device. Background Art

[0002] Anti-wear tiles, also known as anti-wear plates, anti-wear protective tiles, anti-wear covers, anti-corrosion covers, boiler climbing pipes, anti-wear pressure plates, etc., are commonly used accessories for heating surface pipes of power station boilers. They are used in conjunction with clamps. Anti-wear tiles are mainly used on the windward side of the heating surface pipes of the four pipes of the boiler, such as the superheater, reheater, economizer, and water-cooled wall pipes, and are also used by induced draft fans. Their main function is to protect the windward side of the boiler pipes, reduce pipe wear, and increase the service life of the heating surface pipes. Anti-wear covers are special accessories for boilers. They are generally used mostly in power station boilers, less in small boilers, and also in some coal chemical industries.

[0003] However, the anti-wear device used in the existing boiler heating surface pipe is generally fixed to the outside of the pipe by welding with a clamp ring. This fixing method is inefficient and the installation of the anti-wear device is not easy. Utility Model Content

[0004] The purpose of the utility model is to provide a boiler heating surface pipe anti-wear device to solve the problem that the existing boiler heating surface pipe anti-wear device is generally fixed to the outside of the pipe by welding with a clamp ring, this fixing method is inefficient, and the installation of the anti-wear device is not easy.

[0005] To achieve the above object, the utility model provides the following technical solutions: a boiler heating surface pipe anti-wear device, comprising an anti-wear tile and a clamping ring, characterized in that: the upper and lower ends of the anti-wear tile are both equipped with a clamping ring, the clamping ring can be sleeved on the external boiler pipe, and the anti-wear tile is arranged on the windward surface of the boiler pipe;

[0006] The retaining ring includes a fixed ring, a sliding ring and a push block. The fixed ring is semi-annular and has a sliding cavity in it. The sliding ring is slidably installed in the sliding cavity. A sliding groove is provided on the side wall of the fixed ring. A push block is slidably installed in the sliding groove. The push block passes through the side wall of the fixed ring through the sliding groove and is connected to the side wall of the sliding ring. A positioning mechanism is provided on the upper wall of the fixed ring, and the positioning mechanism can tighten the sliding ring.

[0007] As a preferred embodiment of the utility model, the positioning mechanism includes a mounting hole, a rotating rod, a gear and a protective cover, the upper wall of the fixed ring is provided with a mounting hole, a rotating rod is rotatably installed in the mounting hole, a gear is installed at one end of the rotating rod located in the fixed ring, a tooth groove is provided on the side wall of the sliding ring, the gear can be meshed and connected with the tooth groove, and a protective cover is installed at a section of the rotating rod located above the fixed ring.

[0008] As a preferred embodiment of the utility model, the protective cover includes a buckle cap, a slot and a sealing gasket, the inner side wall of the buckle cap is provided with a slot, the rotating rod can be inserted into the slot, the inner side wall of the buckle cap is installed with a sealing gasket, the upper wall of the fixing ring is provided with a clearance groove, the clearance groove is arranged on the outside of the mounting hole, the protective cover can be inserted into the clearance groove, and the sealing gasket can fit with the inner side wall of the clearance groove.

[0009] As a preferred embodiment of the utility model, a main socket is provided on the upper wall of the rotating rod, a positioning rod is inserted and installed in the main socket, the cross-section of the positioning rod is n-shaped, and a secondary socket is provided on the upper wall of the fixing ring, the other end of the positioning rod can be inserted and installed in the secondary socket.

[0010] As a preferred embodiment of the utility model, the sliding ring includes a non-deformable ring body, a deformable ring body and a placement groove, the non-deformable ring body is slidably installed in the sliding cavity, the push block is installed on the side wall of the non-deformable ring body, the side wall of the non-deformable ring body is provided with a placement groove, one end of the deformable ring body is installed on the inner wall of the placement groove, and the tooth groove is opened on the side wall of the deformable ring body.

[0011] As a preferred embodiment of the present invention, the inner side wall of the deformable ring body is provided with anti-slip patterns.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is provided with a sliding ring that can slide on its fixed ring. When installing the anti-wear tile, it only needs to push the non-deformable ring body so that the non-deformable ring body and the deformable ring body are inserted into the sliding cavity. The deformable ring body can be tightened by rotating the rod, so that the anti-wear tile is fixed in the boiler pipe. The installation is relatively simple. At the same time, because the deformable ring body is inserted into the sliding cavity under the drive of the non-deformable ring body, the deformable ring body will not be misplaced or unable to be inserted, and the staff does not need to move to the back side of the boiler pipe to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of this patent;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the clamp ring of this patent;

[0016] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle.

[0017] Figure 4 This is a schematic diagram of the protective cover structure of this patent.

[0018] In the figure: 1 anti-wear tile, 2 snap ring, 21 fixed ring, 22 sliding ring, 23 push block, 3 sliding cavity, 4 slide groove, 5 positioning mechanism, 51 mounting hole, 52 rotating rod, 53 gear, 54 protective cover, 6 tooth groove, 7 yielding groove, 8 main plug hole, 9 positioning rod, 10 auxiliary plug hole, 11 anti-slip texture, 221 non-deformable ring body, 222 deformable ring body, 223 placement groove, 541 buckle cap, 542 card slot, 543 sealing gasket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 , the utility model provides a technical solution:

[0021] In the technical scheme, a boiler heating surface pipe anti-wear device comprises an anti-wear tile 1 and a clamping ring 2. The upper and lower ends of the anti-wear tile 1 are both equipped with a clamping ring 2. The clamping ring 2 can be sleeved on the external boiler pipe. The anti-wear tile 1 is arranged on the windward surface of the boiler pipe.

[0022] The clamping ring 2 includes a fixed ring 21, a sliding ring 22 and a push block 23. The fixed ring 21 is semi-circular, a sliding cavity 3 is provided in the fixed ring 21, and the sliding ring 22 is slidably installed in the sliding cavity 3. A sliding groove 4 is provided on the side wall of the fixed block 21, and a push block 23 is slidably installed in the sliding groove 4. The push block 23 penetrates the side wall of the fixed ring 21 through the sliding groove 4 and is connected to the side wall of the sliding ring 22. A positioning mechanism 5 is provided on the upper wall of the fixed ring 21, and the positioning mechanism 5 can tighten the sliding ring 22.

[0023] In this technical solution, when installing the anti-wear tile 1, the staff only needs to buckle the anti-wear tile 1 on the heated surface of the external boiler pipe, and then push the push block 23 in the slide groove 4 to push the sliding ring 22 out from one side of the sliding cavity 3, and then insert it from the other side, and then the rotating rod 52 can be rotated to tighten the deformable ring body 222 in the sliding ring 22 to complete the installation of the anti-wear tile 1. Compared with the prior art of fixing by welding, the installation of this device is more convenient and does not require external tools such as welding guns. At the same time, because it fixes the device by collecting the deformable ring body 222, when the anti-wear tile 1 is severely worn and needs to be disassembled, the rotating rod 52 can be directly rotated in the opposite direction to remove the device from the boiler pipe for replacement.

[0024] In some technical solutions, the positioning mechanism 5 includes a mounting hole 51, a rotating rod 52, a gear 53 and a protective cover 54. The upper wall of the fixed ring 21 is provided with a mounting hole 51, and the rotating rod 52 is rotatably installed in the mounting hole 51. The gear 53 is installed at one end of the rotating rod 52 located in the fixed ring 21. The side wall of the sliding ring 22 is provided with a tooth groove 6, and the gear 53 can be meshed and connected with the tooth groove 6. The protective cover 54 is installed at a section of the rotating rod 52 located above the fixed ring 21.

[0025] In some technical solutions, the protective cover 54 includes a buckle cap 541, a slot 542 and a sealing gasket 543. The inner wall of the buckle cap 541 is provided with a slot 542, and the rotating rod 52 can be inserted into the slot 542. The inner wall of the buckle cap 541 is installed with a sealing gasket 543. The upper wall of the fixing ring 21 is provided with a clearance groove 7, and the clearance groove 7 is arranged on the outer side of the mounting hole 51. The protective cover 54 can be inserted into the clearance groove 7, and the sealing gasket 543 can fit with the inner wall of the clearance groove 7.

[0026] In this technical solution, the protective cover 54 can shield the rotating rod 52 to prevent dust in the boiler flue gas from entering the mounting hole 51 when the boiler is in use, thereby preventing the rotation of the rotating rod 52 from being affected.

[0027] In some technical solutions, a main socket 8 is opened on the upper wall of the rotating rod 52, and a positioning rod 9 is inserted and installed in the main socket 8. The cross-section of the positioning rod 9 is n-shaped. A secondary socket 10 is opened on the upper wall of the fixing ring 21, and the other end of the positioning rod 9 can be inserted and installed in the secondary socket 10.

[0028] In this technical solution, by inserting the two ends of the positioning rod 9 into the main socket 8 and the auxiliary socket 10 respectively, the purpose of preventing the rotating rod 52 from rotating can be achieved, thereby preventing the clamping ring 2 from loosening and causing the device to fall off the boiler pipe.

[0029] In some technical solutions, the sliding ring 22 includes a non-deformable ring body 221, a deformable ring body 222 and a placement groove 223. The non-deformable ring body 221 is slidably installed in the sliding cavity 3, the push block 23 is installed on the side wall of the non-deformable ring body 221, the side wall of the non-deformable ring body 221 is provided with a placement groove 223, one end of the deformable ring body 222 is installed on the inner wall of the placement groove 223, and the tooth groove 6 is opened on the side wall of the deformable ring body 222.

[0030] In this technical solution, the purpose of setting the non-deformable ring body 221 is to accurately guide the deformable ring body 222 into the sliding cavity 3 to avoid the deformable ring body 222 from being misplaced. When the deformable ring body 222 enters the sliding cavity 3, the rotating rod 52 in the positioning mechanism 5 can drive the gear 53 to rotate, so that the gear 53 cooperates with the tooth groove 6 to tighten the deformable ring body 222, thereby firmly fixing the device on the boiler pipe.

[0031] In some technical solutions, the inner wall of the deformable ring body 222 is provided with anti-slip grooves 11.

[0032] In this technical solution, the anti-slip pattern 11 can increase the friction between the deformable ring body 222 and the boiler pipe.

[0033] Working principle: When installing the anti-wear tile 1, the staff only needs to buckle the anti-wear tile 1 on the heating surface of the external boiler pipe, and then push the push block 23 in the slide groove 4 to push the sliding ring 22 out of one side of the sliding cavity 3, and then insert it from the other side.

[0034] During this process, the non-deformable ring body 221 can guide the deformable ring body 222 into the sliding cavity 3 to avoid the deformable ring body 222 from being misplaced. When the deformable ring body 222 enters the sliding cavity 3, the rotating rod 52 in the positioning mechanism 5 can drive the gear 53 to rotate, so that the gear 53 cooperates with the tooth groove 6 to tighten the deformable ring body 222, thereby firmly fixing the device on the boiler pipe to complete the installation of the anti-wear tile 1. Compared with the prior art of fixing by welding, the installation of the device is more convenient and does not require external tools such as welding guns. At the same time, because it fixes the device by collecting the deformable ring body 222, when the anti-wear tile 1 is severely worn and needs to be disassembled, the rotating rod 52 can be directly rotated in the opposite direction to remove the device from the boiler pipe for replacement.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A boiler heating surface pipe anti-wear device, comprising an anti-wear shoe (1) and a clamping ring (2), characterized in that: The upper and lower ends of the anti-wear tile (1) are both provided with clamping rings (2), and the clamping ring (2) can be sleeved on an external boiler pipe. The anti-wear tile (1) is arranged on the windward surface of the boiler pipe. The clamping ring (2) comprises a fixed ring (21), a sliding ring (22) and a push block (23); the fixed ring (21) is semi-annular, a sliding cavity (3) is provided in the fixed ring (21), the sliding ring (22) is slidably installed in the sliding cavity (3), a sliding groove (4) is provided on the side wall of the fixed ring (21), a push block (23) is slidably installed in the sliding groove (4), the push block (23) passes through the side wall of the fixed ring (21) through the sliding groove (4) and is connected to the side wall of the sliding ring (22); a positioning mechanism (5) is provided on the upper wall of the fixed ring (21), and the positioning mechanism (5) can tighten the sliding ring (22).

2. The boiler heating surface pipe anti-wear device according to claim 1, characterized in that: The positioning mechanism (5) comprises a mounting hole (51), a rotating rod (52), a gear (53) and a protective cover (54); the upper wall of the fixed ring (21) is provided with a mounting hole (51); the rotating rod (52) is rotatably mounted in the mounting hole (51); the gear (53) is mounted on one end of the rotating rod (52) located in the fixed ring (21); the side wall of the sliding ring (22) is provided with a tooth groove (6); the gear (53) can be meshed with the tooth groove (6); and the protective cover (54) is mounted on a section of the rotating rod (52) located above the fixed ring (21).

3. A boiler heating surface pipe anti-wear device according to claim 2, characterized in that: The protective cover (54) comprises a buckle cap (541), a slot (542) and a sealing gasket (543); the inner side wall of the buckle cap (541) is provided with a slot (542), the rotating rod (52) can be inserted into the slot (542), the inner side wall of the buckle cap (541) is provided with a sealing gasket (543); the upper wall of the fixing ring (21) is provided with a clearance groove (7), the clearance groove (7) is arranged on the outer side of the mounting hole (51), the protective cover (54) can be inserted into the clearance groove (7), and the sealing gasket (543) can fit with the inner side wall of the clearance groove (7).

4. The boiler heating surface pipe anti-wear device according to claim 2, characterized in that: The upper wall of the rotating rod (52) is provided with a main insertion hole (8), a positioning rod (9) is inserted and installed in the main insertion hole (8), and the cross section of the positioning rod (9) is n-shaped. The upper wall of the fixing ring (21) is provided with a secondary insertion hole (10), and the other end of the positioning rod (9) can be inserted and installed in the secondary insertion hole (10).

5. The boiler heating surface pipe anti-wear device according to claim 2, characterized in that: The sliding ring (22) comprises a non-deformable ring body (221), a deformable ring body (222) and a placement groove (223); the non-deformable ring body (221) is slidably installed in the sliding cavity (3); the push block (23) is installed on the side wall of the non-deformable ring body (221); the side wall of the non-deformable ring body (221) is provided with a placement groove (223); one end of the deformable ring body (222) is installed on the inner wall of the placement groove (223); and the tooth groove (6) is provided on the side wall of the deformable ring body (222).

6. The boiler heating surface pipe anti-wear device according to claim 5, characterized in that: The inner side wall of the deformable ring body (222) is provided with anti-slip patterns (11).

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