Novel boiler air pre-heater heat exchanger structure

Abstract

The utility model relates to the field of boiler air pre-heaters, in particular to a novel boiler air pre-heater heat exchanger structure which comprises a tubular air pre-heater body, a dismounting assembly is installed on the surface of the tubular air pre-heater body, a cleaning assembly is installed on the surface of the tubular air pre-heater body, and the dismounting assembly comprises a side plate installed on the surface of the tubular air pre-heater body. A cylindrical block is fixed to the side surface of the side plate, a groove is formed in the surface of the cylindrical block, an annular groove is formed in the cylindrical block, a sliding groove is formed in the inner wall of the annular groove, a spring is arranged in the annular groove, a convex column is movably connected to the interior of the annular groove, and a sliding column is fixed to the surface of the convex column. The rectangular plate and the anti-abrasion sleeve are arranged in the dismounting assembly, the anti-abrasion sleeve and the rectangular plate are integrally designed, so that installation and replacement are simple, operation is easy, the working efficiency can be effectively improved, and during dismounting, the convex column is separated from the connecting block by sliding the convex column, and meanwhile, the anti-abrasion sleeve can be dismounted by sliding the protective plate.

Description

Technical Field

[0001] The utility model relates to the field of boiler air preheaters, in particular to a novel boiler air preheater heat exchanger structure. Background Art

[0002] Air preheater is a kind of equipment used to improve the heat exchange performance of boiler system. The main function of air preheater is to collect the heat in the flue gas discharged by the boiler and transfer it to the air before entering the boiler. There are three major categories of air preheaters, namely plate air preheater, rotary air preheater and tubular air preheater. Among them, the advantages of tubular air preheater are small size, light weight, compact structure, large margin for heat transfer element to withstand wear, and the advantages of tubular air preheater are good sealing, high heat transfer efficiency, easy manufacturing and processing.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: when the existing tubular air preheater is working, the flue gas inlet position of the tubular air preheater is easily worn by fly ash particles. In order to reduce the wear of the pipe by fly ash particles, a method of installing an anti-wear sleeve at the flue gas inlet is generally adopted to prevent the wear of the inlet pipe of the tubular air preheater. However, this method is too cumbersome to install or replace, and the workload is too large, and it is difficult to effectively improve work efficiency. Utility Model Content

[0004] In order to improve the existing tubular air preheater, the flue gas inlet position of the tubular air preheater is easily worn by fly ash particles during operation. In order to reduce the wear of the pipe by fly ash particles, a method of installing an anti-wear sleeve at the flue gas inlet is generally adopted to prevent the wear of the inlet pipe of the tubular air preheater. However, this method is too cumbersome to install or replace, the workload is too large, and it is difficult to effectively improve the work efficiency. The present application provides a new boiler air preheater heat exchanger structure.

[0005] The present application provides a novel boiler air preheater heat exchanger structure adopts the following technical scheme: the novel boiler air preheater heat exchanger structure comprises a tubular air preheater body, a disassembly assembly is installed on the surface of the tubular air preheater body, and a cleaning assembly is installed on the surface of the tubular air preheater body, the disassembly assembly comprises a side plate installed on the surface of the tubular air preheater body, and a columnar block is fixed on the side surface of the side plate, a groove is provided on the surface of the columnar block, and an annular groove is provided inside the columnar block, a sliding groove is provided on the inner wall of the annular groove, and a spring is provided inside the annular groove, a convex column is movably connected inside the annular groove, and a sliding column is fixed on the surface of the convex column, a connecting block is provided inside the groove, and a protective plate is fixed on the inner side of the connecting block, a rectangular plate is movably connected to the rear end surface of the protective plate, and an anti-wear sleeve is fixed on the surface of the rectangular plate.

[0006] It is further provided that the protruding column sequentially penetrates the columnar block and the connecting block and extends to the interior of the connecting block, and the surface of the sliding column contacts the inner wall of the sliding groove.

[0007] The rear end surface of the rectangular plate is in contact with the surface of the side plate, and the rear end surface of the protective plate is in contact with the surface of the rectangular plate.

[0008] It is further arranged that the surface of the connecting block is fitted with the inner wall of the groove, and the rear end surface of the rectangular plate is in contact with the surface of the side plate.

[0009] It is further provided that the columnar block and the side plate are an integrated structure, and a rectangular groove is provided on the rear end surface of the columnar block.

[0010] It is further arranged that the cleaning assembly includes a concave plate fixed to the side plate and the surface of the tubular air preheater body, and a bearing is fixedly installed on the inner surface of the concave plate, a screw rod is installed inside the bearing, and a nut seat is sleeved on the surface of the screw rod, a sliding plate is fixed on the surface of the nut seat, and a cleaning brush is fixed on the surface of the sliding plate, and a pulley is fixedly installed on the surface of the screw rod.

[0011] It is further arranged that a servo motor is fixedly mounted on the surface of the concave plate, and a second pulley is fixed on the extended shaft of the servo motor, and the second pulley is connected to the first pulley through a belt.

[0012] Compared with the related art, the novel boiler air preheater heat exchanger structure provided by the utility model has the following beneficial effects:

[0013] The utility model provides a novel boiler air preheater heat exchanger structure, in which a disassembly component is arranged on the surface of a tubular air preheater body, and a rectangular plate and an anti-wear sleeve are arranged inside the disassembly component. The anti-wear sleeve and the rectangular plate are integrated into one design, so installation and replacement are relatively simple and easy to operate, and work efficiency can be effectively improved. When disassembling, the convex column is separated from the connecting block by sliding the convex column, and the protective plate is slid at the same time to disassemble the anti-wear sleeve, and installation and replacement are simple.

[0014] The utility model provides a novel boiler air preheater heat exchanger structure, in which a cleaning component is installed on the surface of a tubular air preheater body. A screw rod and a nut seat are arranged inside the cleaning component, and the screw rod drives the nut seat to slide, so that the nut seat drives the sliding plate and the cleaning brush to slide, thereby facilitating the cleaning of the tubular air preheater body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a preferred embodiment of a novel boiler air preheater heat exchanger structure provided by the utility model;

[0016] Figure 2 This is the front view of the utility model;

[0017] Figure 3 It is a top view of the utility model;

[0018] Figure 4 It is a side sectional view of the utility model.

[0019] Numbers in the figure: 1. Tubular air preheater body; 2. Disassembly assembly; 201. Side plate; 202. Column block; 203. Groove; 204. Annular groove; 205. Slide groove; 206. Spring; 207. Boss; 208. Slide column; 209. Connecting block; 210. Protective plate; 211. Rectangular plate; 212. Anti-wear sleeve; 213. Rectangular groove; 3. Cleaning assembly; 301. Concave plate; 302. Bearing; 303. Screw rod; 304. Nut seat; 305. Sliding plate; 306. Cleaning brush; 307. Pulley one; 308. Servo motor; 309. Pulley two. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the accompanying drawings, in which typical embodiments of the present invention are shown.

[0021] Embodiment 1:

[0022] like Figure 1-4 As shown, the novel boiler air preheater heat exchanger structure of the utility model comprises a tubular air preheater body 1, a disassembly assembly 2 is installed on the surface of the tubular air preheater body 1, and a cleaning assembly 3 is installed on the surface of the tubular air preheater body 1, the disassembly assembly 2 comprises a side plate 201 installed on the surface of the tubular air preheater body 1, and a columnar block 202 is fixed on the side surface of the side plate 201, a groove 203 is opened on the surface of the columnar block 202, and an annular groove 203 is opened inside the columnar block 202 04, a sliding groove 205 is provided on the inner wall of the annular groove 204, and a spring 206 is provided inside the annular groove 204, a boss 207 is movably connected inside the annular groove 204, and a sliding column 208 is fixed on the surface of the boss 207, a connecting block 209 is provided inside the groove 203, and a protective plate 210 is fixed on the inner side of the connecting block 209, a rectangular plate 211 is movably connected to the rear end surface of the protective plate 210, and an anti-wear sleeve 212 is fixed on the surface of the rectangular plate 211.

[0023] like Figure 1-4 As shown, the protruding column 207 sequentially penetrates the columnar block 202 and the connecting block 209 and extends to the inside of the connecting block 209 , and the surface of the sliding column 208 contacts the inner wall of the sliding groove 205 .

[0024] like Figure 1-4 As shown, the rear end surface of the rectangular plate 211 is in contact with the surface of the side plate 201 , and the rear end surface of the protective plate 210 is in contact with the surface of the rectangular plate 211 .

[0025] like Figure 1-4As shown, the surface of the connecting block 209 is in contact with the inner wall of the groove 203 , and the rear end surface of the rectangular plate 211 is in contact with the surface of the side plate 201 .

[0026] like Figure 1-4 As shown, the columnar block 202 and the side plate 201 are an integrated structure, and a rectangular groove 213 is formed on the rear end surface of the columnar block 202 .

[0027] During implementation, since the rectangular plate 211 and the anti-wear sleeve 212 are of integrated design, the installation and replacement of the rectangular plate 211 and the anti-wear sleeve 212 are relatively simple. When the rectangular plate 211 and the anti-wear sleeve 212 need to be replaced, the sliding column 208 drives the protruding column 207 to slide, thereby separating the protruding column 207 from the connecting block 209. At the same time, the sliding connecting block 209 drives the protective plate 210 to separate from the surface of the rectangular plate 211, thereby facilitating the disassembly of the rectangular plate 211 and the anti-wear sleeve 212.

[0028] Embodiment 2:

[0029] like Figure 1-4 As shown, on the basis of embodiment 1, the utility model provides a technical solution: the cleaning component 3 includes a concave plate 301 fixed to the side plate 201 and the surface of the tubular air preheater body 1, and a bearing 302 is fixedly installed on the inner surface of the concave plate 301, a screw rod 303 is installed inside the bearing 302, and a nut seat 304 is sleeved on the surface of the screw rod 303, a sliding plate 305 is fixed on the surface of the nut seat 304, and a cleaning brush 306 is fixed on the surface of the sliding plate 305, and a pulley 307 is fixedly installed on the surface of the screw rod 303.

[0030] like Figure 1-4 As shown, a servo motor 308 is fixedly mounted on the surface of the concave plate 301 , and a second pulley 309 is fixed to the extended shaft of the servo motor 308 , and the second pulley 309 is connected to the first pulley 307 through a belt.

[0031] During implementation, when it is necessary to clean the tubular air preheater body 1, the servo motor 308 is started, and the servo motor 308 drives the pulley 2 309 to rotate, and the pulley 2 309 drives the pulley 1 307 to rotate, so that the pulley 1 307 drives the screw rod 303 to rotate, and the screw rod 303 drives the nut seat 304 to slide, so that the nut seat 304 drives the sliding plate 305 and the cleaning brush 306 to slide, thereby facilitating the cleaning of the tubular air preheater body 1.

[0032] The advantages of this technical solution in practical applications include but are not limited to the following:

[0033] 1. A rectangular plate 211 and an anti-wear sleeve 212 are provided inside the disassembly component 2. The anti-wear sleeve 212 and the rectangular plate 211 are integrated in design, so the installation and replacement are relatively simple and easy to operate, which can effectively improve the work efficiency. When disassembling, the protruding column 207 is slid to separate the protruding column 207 from the connecting block 209, and the protective plate 210 is slid at the same time to disassemble the anti-wear sleeve 212, which is easy to install and replace;

[0034] 2. By arranging a screw rod 303 and a nut seat 304 inside the cleaning assembly 3, the screw rod 303 drives the nut seat 304 to slide, so that the nut seat 304 drives the sliding plate 305 and the cleaning brush 306 to slide, thereby facilitating the cleaning of the tubular air preheater body 1.

[0035] In the present technical solution, since the rectangular plate 211 and the anti-wear sleeve 212 are of an integrated design, the installation and replacement of the rectangular plate 211 and the anti-wear sleeve 212 are relatively simple. When the rectangular plate 211 and the anti-wear sleeve 212 need to be replaced, the sliding column 208 is used to slide the sliding column 208, so that the protruding column 207 is separated from the connecting block 209, and the connecting block 209 is slid at the same time, and the connecting block 209 drives the protective plate 210 to separate from the surface of the rectangular plate 211, so as to facilitate When the rectangular plate 211 and the anti-wear sleeve 212 are removed and the tubular air preheater body 1 needs to be cleaned, the servo motor 308 is started, and the servo motor 308 drives the pulley 2 309 to rotate, and the pulley 2 309 drives the pulley 1 307 to rotate, so that the pulley 1 307 drives the screw rod 303 to rotate, and the screw rod 303 drives the nut seat 304 to slide, so that the nut seat 304 drives the sliding plate 305 and the cleaning brush 306 to slide, thereby facilitating the cleaning of the tubular air preheater body 1.

[0036] The above are only exemplary embodiments of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the disclosure of the specification and the truth of practice, it will be easy for those skilled in the art to think of other embodiments of the present disclosure. This application is intended to cover any variation, use or adaptive change of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure.

Claims

1. A novel boiler air preheater heat exchanger structure, comprising a tubular air preheater body (1), characterized in that: A disassembly component (2) is installed on the surface of the tubular air preheater body (1), and a cleaning component (3) is installed on the surface of the tubular air preheater body (1); The disassembly assembly (2) comprises a side plate (201) mounted on the surface of the tubular air preheater body (1), and a columnar block (202) is fixed to the side surface of the side plate (201), a groove (203) is provided on the surface of the columnar block (202), and an annular groove (204) is provided inside the columnar block (202), a sliding groove (205) is provided on the inner wall of the annular groove (204), and a spring (205) is provided inside the annular groove (204). 6), a boss (207) is movably connected inside the annular groove (204), and a sliding column (208) is fixed on the surface of the boss (207), a connecting block (209) is provided inside the groove (203), and a protective plate (210) is fixed on the inner side of the connecting block (209), a rectangular plate (211) is movably connected to the rear end surface of the protective plate (210), and an anti-wear sleeve (212) is fixed on the surface of the rectangular plate (211).

2. The novel boiler air preheater heat exchanger structure according to claim 1 is characterized in that: The protruding column (207) sequentially passes through the columnar block (202) and the connecting block (209) and extends to the interior of the connecting block (209). The surface of the sliding column (208) contacts the inner wall of the sliding groove (205).

3. The novel boiler air preheater heat exchanger structure according to claim 1 is characterized in that: The rear end surface of the rectangular plate (211) is in contact with the surface of the side plate (201), and the rear end surface of the protective plate (210) is in contact with the surface of the rectangular plate (211).

4. The novel boiler air preheater heat exchanger structure according to claim 1 is characterized in that: The surface of the connection block (209) is in contact with the inner wall of the groove (203), and the rear end surface of the rectangular plate (211) is in contact with the surface of the side plate (201).

5. The novel boiler air preheater heat exchanger structure according to claim 1 is characterized in that: The columnar block (202) and the side plate (201) are an integrated structure, and a rectangular groove (213) is provided on the rear end surface of the columnar block (202).

6. The novel boiler air preheater heat exchanger structure according to claim 1 is characterized in that: The cleaning assembly (3) comprises a concave plate (301) fixed to the surface of the side plate (201) and the tubular air preheater body (1), and a bearing (302) is fixedly mounted on the inner surface of the concave plate (301), a screw rod (303) is mounted inside the bearing (302), and a nut seat (304) is sleeved on the surface of the screw rod (303), a sliding plate (305) is fixed on the surface of the nut seat (304), and a cleaning brush (306) is fixed on the surface of the sliding plate (305), and a pulley (307) is fixedly mounted on the surface of the screw rod (303).

7. The novel boiler air preheater heat exchanger structure according to claim 6 is characterized in that: A servo motor (308) is fixedly mounted on the surface of the concave plate (301), and a second pulley (309) is fixedly mounted on the protruding shaft of the servo motor (308), and the second pulley (309) is connected to the first pulley (307) via a belt.

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