Anti-abrasion cover for low-temperature superheater

Abstract

The utility model discloses an anti-abrasion cover for a low-temperature superheater, which comprises an anti-abrasion cover, and an adjusting mechanism is arranged at the inner side end of the anti-abrasion cover. By arranging the adjusting mechanism, the adjusting cover can slide at the side end of the anti-abrasion cover, and when the adjusting cover moves towards the right side, the protection area of the anti-abrasion cover can be enlarged, so that the protection range of the anti-abrasion cover is adjusted, the area of the anti-abrasion cover can be enlarged, and the area of the anti-abrasion cover can also be reduced; the device is suitable for low-temperature superheaters with different sizes and occasions with different protection requirements; meanwhile, a spring, a first check block and a second check block are arranged in the adjusting cover, when the adjusting cover is located at the bottom of the fixing strip, the first check block and the second check block are blocked by a blocking strip and a connecting block and cannot pop out, and when the adjusting cover is pulled outwards, the first check block and the second check block lose blocking and move out of the cavity; at the moment, the first check block and the second check block can fill the portion, smaller than the anti-abrasion cover, of the adjusting cover, and the anti-abrasion effect is prevented from being affected by size reduction of the anti-abrasion cover.

Description

Technical Field

[0001] This utility model relates to the field of anti-wear tile technology, and in particular to an anti-wear cover for a low-temperature superheater. Background Technology

[0002] Low-temperature superheaters are made of high-temperature resistant, high-quality low-carbon steel or alloy steel. Because the superheater must withstand high temperatures in the boiler, the superheated steam inside the boiler in the power plant is very hot. The steam generated by ordinary boilers is saturated steam, which needs to be further heated to generate superheated steam. Using a superheater to heat saturated steam to generate superheated steam is a common method in the industrial field. The superheater uses parallel pipes to form a structure with screen type or serpentine tube type. Usually, the outer surface of the superheater is fixedly installed with a wear-resistant cover or wear-resistant tile because the flue gas in the boiler has a large particulate content, and the superheater will be worn under high-speed air convection.

[0003] In the existing technology, the wear-resistant cover is made of stainless steel in the form of a semi-circular tile-shaped plate. This type of wear-resistant cover is integrally molded, and the size of the wear-resistant cover is fixed after production, and the protection range is fixed and cannot be changed. This type of wear-resistant cover is very inconvenient to use when installed on wear-resistant covers of different sizes and when different protection ranges are required. Therefore, a wear-resistant cover for low-temperature superheaters is proposed to solve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model designs an anti-wear cover for low-temperature superheaters, which has the advantages of easy adjustment of the size of the protective cover and solves the problem that the existing protective covers are integrally molded and the size is not easy to adjust.

[0005] The present invention adopts the following technical solution:

[0006] A wear-resistant cover for a low-temperature superheater includes a wear-resistant cover with a fixing strip fixedly installed on its inner end. An adjustment mechanism is provided on the inner end of the wear-resistant cover, including an adjustment cover. The bottom of the fixing strip is slidably connected to the adjustment cover, which slides left and right along the bottom of the fixing strip. The adjustment cover has an internal cavity with an open top. Multiple sets of springs arranged side-by-side are fixedly installed inside the cavity. A first stop and at least one second stop are respectively installed on the top of each set of springs. The first stop is located to the right of the second stop. Fixing grooves are provided on the left side walls of both the first and second stops. Fixing blocks are fixedly installed on the right side of each second stop, with the fixing grooves engaging with the fixing blocks. The first stop moves up and down along the second stop via the fixing grooves and the fixing blocks. A sliding opening is provided on the right end of the fixing strip, with a fixing bolt threaded onto the sliding opening. The bottom end of the fixing bolt is inserted into the cavity of the adjustment cover.

[0007] Preferably, a connecting block is installed at the bottom of the fixing strip, and connecting grooves are provided on both sides of the top wall of the cavity. The connecting block is slidably connected in the connecting groove, and the adjusting cover slides left and right along the bottom of the fixing strip through the connecting groove and the connecting block.

[0008] Preferably, the inner end of the adjusting cover is provided with a moving groove corresponding to the front side of the first stop and the second stop, and a connecting plate is fixedly installed on the front side of the first stop and the second stop, and the connecting plate moves along the moving groove.

[0009] Preferably, a baffle that can be flipped left and right is fixedly installed on the front side of the connecting plate, and a locking block is fixedly installed on the inner side of the adjusting cover below the right side of the moving groove. After the baffle is flipped to the right, it is locked and limited by the locking block.

[0010] Preferably, a stop bar is installed on the outside of the connecting block between the adjusting cover and the fixing bar.

[0011] Preferably, the inner side of the adjustment cover is provided with multiple vertical welding points.

[0012] Preferably, the welding point is configured as a raised shape.

[0013] The beneficial effects of this utility model are: (1) By setting an adjustment mechanism, the adjustment cover can slide on the side of the anti-wear cover. When the adjustment cover moves to the right, the protective area of ​​the anti-wear cover can be expanded, thereby adjusting the protection range of the anti-wear cover. The area of ​​the anti-wear cover can be expanded or reduced. It is suitable for low-temperature superheaters of different sizes and occasions with different protection requirements. (2) The spring, first stop and second stop are set inside the adjustment cover of this utility model. When the adjustment cover is located at the bottom of the fixed bar, the first stop and second stop are blocked by the stop bar and the connecting block and cannot pop out. When the adjustment cover is pulled outward, the first stop and second stop lose their obstruction and move to the outside of the cavity. At this time, the first stop and second stop can fill the part of the adjustment cover that is smaller than the anti-wear cover, preventing the anti-wear effect from being affected due to the reduction in size of the anti-wear cover. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 This is a three-dimensional schematic diagram of a partial structure of the present invention;

[0016] Figure 3 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0017] Figure 4 This utility model Figure 1 Enlarged view of the structure at point B in the middle;

[0018] Figure 5This is a partial structural side sectional view of the present invention.

[0019] In the diagram: 1. Anti-wear cover, 2. Fixing strip, 3. Sliding opening, 4. Adjustment mechanism, 401. Adjustment cover, 402. Cavity, 403. Connecting groove, 404. Connecting block, 405. Spring, 406. First stop block, 407. Second stop block, 408. Fixing groove, 409. Fixing block, 410. Connecting plate, 411. Baffle, 412. Locking block, 5. Fixing bolt, 6. Moving groove, 7. Welding point, 8. Stop bar. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0021] Example: Figures 1-5 As shown, an anti-wear cover for a low-temperature superheater includes an anti-wear cover 1. A fixing strip 2 is fixedly installed on the inner end of the anti-wear cover. An adjustment mechanism 4 is provided on the inner end of the anti-wear cover. The adjustment mechanism includes an adjustment cover 401. The bottom of the fixing strip is slidably connected to the adjustment cover. The adjustment cover slides left and right along the bottom of the fixing strip. The interior of the adjustment cover has a cavity 402 with an upper opening. Multiple sets of springs 405 arranged side by side are fixedly installed inside the cavity. The top of the multiple sets of springs arranged side by side is respectively equipped with a first stop block 406 and at least one second stop block 407. The first stop block is located to the right of the second stop block. The left side walls of both the first stop block and the second stop block are provided with fixing grooves 408. The right side of the second stop block is fixedly installed with fixing blocks 409. The fixing grooves and fixing blocks cooperate. The first stop block moves up and down along the second stop block through the fixing grooves and fixing blocks. A sliding opening 3 is provided on the right end of the fixing strip. A fixing bolt 5 is threadedly connected to the sliding opening. The bottom end of the fixing bolt is inserted into the cavity of the adjustment cover.

[0022] The adjustable cover can slide on the side of the anti-wear cover. This allows for adjustment of the protection range of the anti-wear cover 1, either expanding or shrinking its area. The adjustable cover 401 contains a spring 405, a first stop 406, and a second stop 407. When the adjustable cover 401 is at the bottom of the fixing strip 2, the first stop 406 and the second stop 407 are blocked by the stop strip 8 and the connecting block and cannot pop out. When the adjustable cover 401 is pulled outward, the first stop 406 and the second stop 407 are no longer blocked and move to the outside of the cavity 402. At this time, the first stop 406 and the second stop 407 can fill the part of the adjustable cover 401 that is smaller than the anti-wear cover 1, preventing the anti-wear effect of the anti-wear cover 1 from being affected due to its reduced size. The baffle 411 is made of a material with a certain deformation effect and high temperature resistance.

[0023] A connecting block is installed at the bottom of the fixing strip, and connecting grooves 403 are provided on both sides of the top wall of the cavity. A connecting block 404 is slidably connected in the connecting groove. The adjusting cover slides left and right along the bottom of the fixing strip through the connecting groove and the connecting block.

[0024] The inner side of the adjusting cover is provided with a moving groove 6 corresponding to the front side of the first stop and the second stop respectively. A connecting plate 410 is fixedly installed on the front side of the first stop and the second stop, and the connecting plate moves along the moving groove.

[0025] A baffle 411 that can be flipped left and right is fixedly installed on the front side of the connecting plate. A locking block 412 is fixedly installed on the inner side of the adjusting cover below the right side of the moving groove. After the baffle is flipped to the right, it is locked and limited by the locking block.

[0026] When retracting the adjustment cover 401, the connecting plate 410 can be pulled down to retract the first stop 406 and the second stop 407 into the cavity 402, and then the baffle 411 can be locked onto the locking block 412 to fix the position of the first stop 406 and the second stop 407.

[0027] A baffle 8 is installed on the outer side of the connecting block between the regulating cover and the fixing strip. The length of the baffle 8 is less than the length of the fixing strip 2. The inner wall of the regulating cover 401 is provided with several welding points 7, which are evenly distributed. The inner wall of the regulating cover 401 is tightly attached to the outer surface of the low-temperature superheater, and the welding part of the outer surface of the low-temperature superheater is welded to the welding points 7, so that the regulating cover 401 is installed around the surface of the low-temperature superheater. The welding points 7 are set in a raised shape to separate the regulating cover 401 from the low-temperature superheater. After the regulating cover 401 is welded, it is wrapped around the outside of the superheater, and there is a certain gap between the two to prevent the contact surface between the two from being too large and forming galvanic corrosion.

[0028] When implementing this utility model, the following steps shall be followed:

[0029] 1) According to the usage requirements of the low temperature superheater, loosen the fixing bolt so that the adjusting cover 401 can move left and right. Pull the adjusting cover 401 to the right and the connecting block 404 slides in the connecting groove 403.

[0030] 2) Then, when sliding, the first stop 406 and the second stop 407 lose their obstruction and move to the outside of the cavity 402. At this time, the first stop 406 and the second stop 407 can fill the part of the adjusting cover 401 that is smaller than the anti-wear cover 1.

[0031] 3) After the final adjustment is completed, fix the fixing bolt 5 to the top of the second stop 407 at the bottom, so that the position of the adjusting cover 401 can be fixed. When installing the anti-wear cover 1, first weld a welding point 7 to the outer surface of the low temperature superheater from the side, then gradually bend the adjusting cover 401 and the anti-wear cover 1 so that the next adjacent welding point 7 is close to the outside of the low temperature superheater. Then weld again, and repeat the action until the adjusting cover 401 is installed around the outer surface of the low temperature superheater.

[0032] In summary, this anti-wear cover for cryogenic superheaters, through the setting of the adjustment mechanism 4, allows the adjustment cover 401 to slide on the side of the anti-wear cover 1. When the adjustment cover 401 moves to the right, it can expand the protective area of ​​the anti-wear cover 1, thereby adjusting the protection range of the anti-wear cover 1. It can expand or shrink the area of ​​the anti-wear cover 1, making it suitable for cryogenic superheaters of different sizes and occasions with different protection requirements. It solves the problem of existing anti-wear covers using semi-circular arc-shaped plates made of stainless steel. It can be seen that this type of anti-wear cover is integrally molded, and the large size of the anti-wear cover is fixed after production, and the protection range cannot be changed. This type of protective cover is very inconvenient to use when installed on protective covers of different sizes and with different protection range requirements.

[0033] Furthermore, the wear-resistant cover for the low-temperature superheater, with spring 405, first stop 406 and second stop 407 installed inside the adjusting cover 401, when the adjusting cover 401 is at the bottom of the fixing bar 2, the first stop 406 and second stop 407 are blocked by the stop bar 8 and the connecting block and cannot pop out. When the adjusting cover 401 is pulled outward, the first stop 406 and second stop 407 are no longer blocked and move to the outside of the cavity 402. At this time, the first stop 406 and second stop 407 can fill the part of the adjusting cover 401 that is smaller than the wear-resistant cover 1, preventing the wear-resistant cover 1 from affecting the wear-resistant effect due to the reduction in size.

[0034] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A wear-resistant cover for a cryogenic superheater, comprising a wear-resistant cover, characterized in that, A fixing strip is fixedly installed on the inner end of the anti-wear cover. An adjustment mechanism is provided on the inner end of the anti-wear cover. The adjustment mechanism includes an adjustment cover. The bottom of the fixing strip is slidably connected to the adjustment cover. The adjustment cover slides left and right along the bottom of the fixing strip. The interior of the adjustment cover has a cavity with an upper opening. Multiple sets of springs arranged side by side are fixedly installed inside the cavity. A first stop block and at least one second stop block are respectively installed on the top of the multiple sets of springs arranged side by side. The first stop block is located to the right of the second stop block. The left side walls of the first stop block and the second stop block are both provided with fixing grooves. The right side of the second stop block is fixedly installed with a fixing block. The fixing grooves cooperate with the fixing blocks. The first stop block moves up and down along the second stop block through the fixing grooves and the fixing blocks. A sliding opening is provided on the right end of the fixing strip. A fixing bolt is threadedly connected to the sliding opening. The bottom end of the fixing bolt is inserted into the cavity of the adjustment cover.

2. The anti-wear cover for a low-temperature superheater according to claim 1, characterized in that, A connecting block is installed at the bottom of the fixing strip, and connecting grooves are provided on both sides of the top wall of the cavity. The connecting block is slidably connected in the connecting groove, and the adjusting cover slides left and right along the bottom of the fixing strip through the connecting groove and the connecting block.

3. The anti-wear cover for a low-temperature superheater according to claim 1, characterized in that, The inner end of the adjusting cover is provided with a moving groove corresponding to the front side of the first block and the second block, and a connecting plate is fixedly installed on the front side of the first block and the second block, and the connecting plate moves along the moving groove.

4. The anti-wear cover for a low-temperature superheater according to claim 3, characterized in that, A baffle that can be flipped left and right is fixedly installed on the front side of the connecting plate, and a locking block is fixedly installed on the inner side of the adjusting cover below the right side of the moving groove. After the baffle is flipped to the right, it is locked and limited by the locking block.

5. A wear-resistant cover for a low-temperature superheater according to claim 2, characterized in that, A stop bar is installed on the outside of the connecting block between the adjusting cover and the fixing bar.

6. The anti-wear cover for a low-temperature superheater according to claim 1, characterized in that, The inner side of the adjustment cover is evenly provided with multiple vertical welding points.

7. A wear-resistant cover for a low-temperature superheater according to claim 6, characterized in that, The welding point is designed to be raised.

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