CN213395381U

CN213395381U - Flue corrosion prevention device for desulfurization system of coal-fired power plant

Info

Publication number: CN213395381U
Application number: CN202022386234.8U
Authority: CN
Inventors: 钟方明; 何胜; 刘汉金; 刘念平; 廖勇; 黄志勇; 荣斌; 张春秋; 彭炳建; 叶敏
Original assignee: Huaneng Anyuan Power Generation Co Ltd
Current assignee: Huaneng Anyuan Power Generation Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-06-08
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a coal fired power plant desulfurization system flue corrosion prevention device, including flue main part and flue outside layer, the outer wall both sides of flue main part are connected with the backing plate, the card hole has been seted up to the inside both sides of backing plate, the lower extreme bottom of backing plate is connected with the rubber cushion, the inner wall of flue main part is connected with the flue outside layer all around, and the inner wall on flue outside layer is connected with the insulating layer all around, the inner wall of insulating layer is connected with the slide rail all around, and the inner wall of slide rail is connected with the corrosion protection board all around. This coal fired power plant desulfurization system flue corrosion prevention device is provided with the anticorrosion board, is provided with even slide rail around the inner wall of insulating layer, and the inside of this slide rail begins to have the recess of several fonts, is provided with the slider of equidimension on the inside of recess, can make the slider slide on the inside of slide rail to be convenient for slide the anticorrosion board on the slider inner wall, be convenient for change its anticorrosion board.

Description

Flue corrosion prevention device for desulfurization system of coal-fired power plant

Technical Field

The utility model relates to a coal fired desulfurization system technical field specifically is a coal fired power plant desulfurization system flue corrosion prevention device.

Background

In the production process of the existing coal-fired power plant, flue gas polluting the environment can be generated, and the flue gas needs to be desulfurized to be discharged.

Flue corrosion prevention device in market in use, the waste gas that coal-fired production can lead to the fact the corruption to the inner wall of pipeline, under long-time use, can make the pipeline weak department appear, can lead to the pipeline to appear the crack even, can cause the treatment effeciency to the flue gas to lead to the fact the influence, for this reason, we provide a coal fired power plant desulfurization system flue corrosion prevention device.

Disclosure of Invention

An object of the utility model is to provide a coal fired power plant desulfurization system flue corrosion prevention device to solve the waste gas that the coal-fired production that provides among the above-mentioned background art can lead to the fact the corruption to the inner wall of pipeline, under long-time use, can make the pipeline weak department appear, can lead to the pipeline to appear the crack even, can lead to the problem of influence to the treatment effeciency of flue gas.

In order to achieve the above object, the utility model provides a following technical scheme: a flue anticorrosion device of a desulfurization system of a coal-fired power plant comprises a flue main body and a flue outer layer, wherein both sides of the outer wall of the flue main body are connected with backing plates, the two sides of the inside of the backing plate are provided with clamping holes, the bottom of the lower end of the backing plate is connected with a rubber soft cushion, the periphery of the inner wall of the flue main body is connected with a flue outer layer, the periphery of the inner wall of the outer layer of the flue is connected with a heat insulation layer, the periphery of the inner wall of the heat insulation layer is connected with a slide rail, and the periphery of the inner wall of the slide rail is connected with an anti-corrosion plate, a slide block is arranged at the joint of the outer wall of the anti-corrosion plate and the inner wall of the slide rail, the periphery of the inner wall of the anti-corrosion plate is connected with a wear-resistant block, the lower end of the interior of the flue main body is provided with a vent pipe, and the inner wall of the breather pipe is connected with the sealing bolt all around, the upper end top of the anti-corrosion plate is provided with a thread groove, and the inner wall of the thread groove is connected with a movable hook all around.

Preferably, a wrapping structure is formed among the flue main body, the flue outer layer and the heat insulation layer, and the flue main body, the flue outer layer and the heat insulation layer are distributed in a concentric circle shape.

Preferably, a welding integrated structure is formed between the flue main body and the backing plate, and the flue main body and the backing plate are vertically distributed.

Preferably, the anti-corrosion plate forms a sliding structure between the sliding block and the sliding rail, and the sliding block and the sliding rail form a zigzag shape to be mutually embedded.

Preferably, the movable hook is in threaded connection with the anti-corrosion plate through the threaded groove, and the movable hook is in a detachable structure with the anti-corrosion plate through the threaded groove.

Preferably, the wear-resistant blocks are uniformly distributed along the circle center of the anti-corrosion plate, and the wear-resistant blocks are distributed in a semi-sphere shape.

Compared with the prior art, the beneficial effects of the utility model are that: this coal fired power plant desulfurization system flue corrosion prevention device is provided with the anticorrosion board, is provided with even slide rail around the inner wall of insulating layer, and the inside of this slide rail begins to have the recess of several fonts, is provided with the slider of equidimension on the inside of recess, can make the slider slide on the inside of slide rail to be convenient for slide the anticorrosion board on the slider inner wall, be convenient for change its anticorrosion board.

Constitute the parcel structure between flue main part and flue outside layer and the insulating layer, whole flue outside layer and insulating layer are the primary structure of this flue, and the flue outside layer that is in the outer wall can play fine guard action, and the inboard on flue outside layer is provided with the insulating layer, and this insulating layer can keep apart the high temperature of flue gas, avoids the high temperature to the outer wall transmission, reduces the holistic influence of equipment, guarantees the long-term use of device.

The wear-resisting piece is the even form along the centre of a circle department of anti-corrosion plate and distributes, and wear-resisting piece is the hemisphere form and distributes, is fixing even wear-resisting piece on the inside of anti-corrosion plate, makes wear-resisting piece distribute around the inner wall, and the appearance of this wear-resisting piece is the hemisphere form, through spherical stable shape, can strengthen the wearability of flue inner wall, guarantees the long-term use of this flue inner wall.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic front structural view of the present invention.

In the figure: 1. a flue main body; 2. an outer layer of the flue; 3. a base plate; 4. a clamping hole; 5. a thermal insulation layer; 6. a slider; 7. a slide rail; 8. an anti-corrosion plate; 9. a wear-resistant block; 10. a movable hook; 11. a thread groove; 12. a breather pipe; 13. sealing the bolt; 14. a rubber cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a flue anticorrosion device of a coal-fired power plant desulfurization system comprises a flue main body 1, a flue outer layer 2, backing plates 3, clamping holes 4, a heat-insulating layer 5, a sliding block 6, a sliding rail 7, anticorrosion plates 8, wear-resistant blocks 9, a movable hook 10, a thread groove 11, a vent pipe 12, a sealing bolt 13 and a rubber cushion 14, wherein the backing plates 3 are connected to two sides of the outer wall of the flue main body 1, the clamping holes 4 are formed in two sides of the inner part of each backing plate 3, the rubber cushion 14 is connected to the bottom of the lower end of each backing plate 3, the flue outer layer 2 is connected to the periphery of the inner wall of the flue main body 1, the heat-insulating layer 5 is connected to the periphery of the inner wall of the flue outer layer 2, the sliding rail 7 is connected to the periphery of the inner wall of each heat-insulating layer 5, the anticorrosion plates 8 are connected, the inside lower extreme of flue main part 1 has seted up breather pipe 12, and the inner wall of breather pipe 12 is connected with sealing bolt 13 all around, and threaded groove 11 has been seted up at the upper end top of corrosion protection plate 8, and the inner wall of threaded groove 11 is connected with movable couple 10 all around.

In the utility model, a wrapping structure is formed between the flue main body 1 and the flue outer layer 2 and the heat insulation layer 5, the flue main body 1 and the flue outer layer 2 are concentrically distributed with the heat insulation layer 5, the whole flue outer layer 2 and the heat insulation layer 5 are main structures of the flue, the flue outer layer 2 on the outer wall can play a good protection role, the heat insulation layer 5 is arranged on the inner side of the flue outer layer 2, the heat insulation layer 5 can isolate the high temperature of the flue gas to avoid the transmission of the high temperature to the outer wall, so that the influence on the whole equipment is reduced, and the long-term use of the device is ensured;

the flue main body 1 and the backing plate 3 form a welding integrated structure, the flue main body 1 and the backing plate 3 are vertically distributed, the whole flue main body 1 and the backing plate 3 are used as a basic structure of the flue corrosion prevention device and are connected in a welding mode, the connection strength of the connection part is high, the structure is stable, the whole flue corrosion prevention device is horizontally and vertically distributed, the gravity center stability of the whole flue corrosion prevention device can be effectively ensured, the long-term use of the flue corrosion prevention device is met, and the rubber cushion 14 at the lower end of the backing plate 3 is convenient for connecting the flue main body 1 with other desulfurization devices;

the anti-corrosion plate 8 forms a sliding structure through the sliding block 6 and the sliding rail 7, the sliding block 6 and the sliding rail 7 form a V-shaped mutual embedding, the sliding rail 7 is uniformly arranged on the periphery of the inner wall of the heat insulation layer 5, the sliding rail 7 is provided with a V-shaped groove inside, the sliding block 6 with the same size is arranged inside the groove, the sliding block 6 can slide on the inner part of the sliding rail 7, and therefore the anti-corrosion plate 8 on the inner wall of the sliding block 6 can slide conveniently, and the anti-corrosion plate 8 can be replaced conveniently;

the movable hook 10 is in threaded connection with the anti-corrosion plate 8 through the thread groove 11, the movable hook 10 forms a detachable structure through the thread groove 11 and the anti-corrosion plate 8, the thread groove 11 is formed in the upper end of the anti-corrosion plate 8, the movable hook 10 can be installed through the thread groove 11, and when the anti-corrosion plate 8 on the inner wall of the movable hook 10 needs to be replaced, the anti-corrosion plate 8 can be taken down in a sliding mode through the movable hook 10, so that replacement is facilitated;

wear-resisting piece 9 is the even form distribution along the centre of a circle department of corrosion protection board 8, and wear-resisting piece 9 is the hemisphere form and distributes, is fixing even wear-resisting piece 9 on corrosion protection board 8's inside, makes wear-resisting piece 9 distribute around the inner wall, and this wear-resisting piece 9 appearance is the hemisphere form, through spherical stable shape, can strengthen the wearability of flue inner wall, guarantees the long-term use of this flue inner wall.

The working principle is as follows: to this kind of coal fired power plant desulfurization system flue corrosion prevention device at first through the card hole 4 in the backing plate 3 of whole flue corrosion prevention device bottommost, come to fix flue corrosion prevention device on suitable desulphurization unit, then carry out flue gas desulfurization operation, and under long-term use, can cause the corruption to the inner wall of anticorrosion board 8, can be through thread groove 11 of anticorrosion board 8 upper end, come to rotate movable hook 10 and install the upper end of thread groove 11, can be through hoisting the device, connect movable hook 10, come to slide its anticorrosion board 8 and pull out, thereby it advances anticorrosion board 8 to change the maintenance, and seted up breather pipe 12 at the lower end, can be through to the interior conveying gas of breather pipe 12, come to carry out cleaning work to the residue on the inner wall.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coal fired power plant desulfurization system flue corrosion prevention device, includes flue main part (1) and flue outside layer (2), its characterized in that: the outer wall both sides of flue main part (1) are connected with backing plate (3), the inside both sides of backing plate (3) have been seted up and have been blocked hole (4), the lower extreme bottom of backing plate (3) is connected with rubber cushion (14), the inner wall of flue main part (1) is connected with flue outside layer (2) all around, and the inner wall of flue outside layer (2) is connected with insulating layer (5) all around, the inner wall of insulating layer (5) is connected with slide rail (7) all around, and the inner wall of slide rail (7) is connected with corrosion protection board (8) all around, the outer wall of corrosion protection board (8) and the inner wall junction of slide rail (7) are provided with slider (6), the inner wall of corrosion protection board (8) is connected with wear-resisting piece (9) all around, breather pipe (12) have been seted up to the inside lower extreme of flue main part (, the top of the upper end of the anti-corrosion plate (8) is provided with a thread groove (11), and the periphery of the inner wall of the thread groove (11) is connected with a movable hook (10).

2. The flue corrosion prevention device of the desulfurization system of the coal-fired power plant according to claim 1, characterized in that: a wrapping structure is formed between the flue main body (1) and the flue outer layer (2) and the heat insulation layer (5), and the flue main body (1) and the flue outer layer (2) are distributed in a concentric circle shape with the heat insulation layer (5).

3. The flue corrosion prevention device of the desulfurization system of the coal-fired power plant according to claim 1, characterized in that: a welding integrated structure is formed between the flue main body (1) and the backing plate (3), and the flue main body (1) and the backing plate (3) are vertically distributed.

4. The flue corrosion prevention device of the desulfurization system of the coal-fired power plant according to claim 1, characterized in that: the anti-corrosion plate (8) forms a sliding structure through the sliding block (6) and the sliding rail (7), and the sliding block (6) and the sliding rail (7) form a mutual embedding in a shape like a Chinese character 'ji'.

5. The flue corrosion prevention device of the desulfurization system of the coal-fired power plant according to claim 1, characterized in that: the movable hook (10) is in threaded connection with the anti-corrosion plate (8) through the thread groove (11), and the movable hook (10) forms a detachable structure with the anti-corrosion plate (8) through the thread groove (11).

6. The flue corrosion prevention device of the desulfurization system of the coal-fired power plant according to claim 1, characterized in that: the wear-resistant blocks (9) are uniformly distributed along the circle center of the anti-corrosion plate (8), and the wear-resistant blocks (9) are distributed in a semi-spherical shape.