CN219530917U

CN219530917U - Boiler system with water-cooled wall leakage prevention device

Info

Publication number: CN219530917U
Application number: CN202223214904.3U
Authority: CN
Inventors: 刘斌奎; 杨建慧; 徐启龙; 尹拓; 宋鹤语; 赵阳清; 曹小林; 范小宁; 姚永强
Original assignee: Huadian Fukang Power Generation Co ltd
Current assignee: Huadian Fukang Power Generation Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-08-15
Anticipated expiration: 2032-12-02

Abstract

A boiler system having a water wall leakage prevention device, the boiler system comprising: the device comprises a water wall, a soot blower and a protection tile corresponding to the soot blower; the soot blower comprises a steam generating device, a gas pipe and a nozzle; the air pipe penetrates through the water cooling wall; the first end of the conveying pipe is connected with the steam generating device and is used for conveying steam; the second end of the conveying pipe is connected with a spray head, and the spray head sprays in the direction parallel to the water cooling wall by taking the axis of the conveying pipe as the center; the protection tile is arranged on the surface of the water-cooled wall and covers the injection range of the soot blower. Because the soot blower sprays high-temperature steam, the water-cooled wall is corroded, the protective tiles are additionally arranged in the range of the water-cooled wall covered by the steam, and only the independent protective tiles are needed to be replaced after corrosion, so that the whole water-cooled wall is not needed to be replaced. And the maintenance cost is reduced.

Description

Boiler system with water-cooled wall leakage prevention device

Technical Field

The utility model belongs to the technical field of boiler protection, and particularly relates to a boiler system with a water-cooled wall leakage prevention device.

Background

At present, the four-pipe leakage of the boiler always puzzles with the safe and stable operation of a fire power plant, the risk of leakage caused by blowing loss and thinning of the water cooling wall around the soot blower exists, a large number of pipelines are required to be replaced for each maintenance, the leakage risk is increased again by newly-added welded junctions and fins, and the new pipelines are replaced intensively for each maintenance in the existing scheme.

Disclosure of Invention

The utility model aims to solve the problem that no better water-cooling wall protection method exists in the prior art, and provides a boiler system with a water-cooling wall leakage prevention device.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a boiler system with a water wall leakage prevention device, comprising: the device comprises a water wall, a soot blower and a protection tile corresponding to the soot blower;

the soot blower comprises a steam generating device, a gas pipe and a nozzle; the air pipe penetrates through the water cooling wall; the first end of the conveying pipe is connected with the steam generating device and is used for conveying steam; the second end of the conveying pipe is connected with a spray head, and the spray head sprays in the direction parallel to the water cooling wall by taking the axis of the conveying pipe as the center;

the protection tile is arranged on the surface of the water-cooled wall and covers the injection range of the soot blower.

Further optimizing is as follows: the distance between the spray head and the water cooling wall is 38mm; the spray radius of the spray head is 1.5m; the protection tile covers a circle with the radius of 1.5m by taking the axis of the conveying pipe as the center of a circle.

Further optimizing is as follows: the protective tile is rectangular with an inscribed circle radius of at least 1.5 m.

Further optimizing is as follows: the protective tile is circular with a radius of at least 1.5 m.

Further optimizing is as follows: the protective tiles are strip-shaped; a plurality of protection tiles are combined and cover on the circumference with the radius of 1.5m taking the soot blower as the center.

Further optimizing is as follows: the cross section of the protective tile is corrugated so as to be attached to the surface of the water-cooled wall.

Further optimizing is as follows: the protection tile is welded on the water cooling wall.

Further optimizing is as follows: the number of the soot blowers is multiple; each sootblower is provided with a set of protection tiles.

Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a boiler system with a water wall leakage prevention device, which is characterized in that high-temperature steam sprayed by a soot blower can corrode a water wall, so that protective tiles are additionally arranged in the range of the water wall covered by the steam, and only a single protective tile is needed to be replaced after corrosion, and the whole water wall is not needed to be replaced. And the maintenance cost is reduced.

The beneficial effects of further optimization are as follows: the rectangular shape reduces the processing cost.

The beneficial effects of further optimization are as follows: the round shape saves materials.

The beneficial effects of further optimization are as follows: the protection tiles are arranged in the strip shape, and only the protection tiles with serious corrosion need to be replaced when the protection tiles are replaced, so that the maintenance cost is reduced.

The beneficial effects of further optimization are as follows: the protection tile is arranged in a corrugated shape, is further attached to the water-cooled wall, and improves the protection performance.

The beneficial effects of further optimization are as follows: the protective tile is installed in a welding mode, and the operation is simple.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic side sectional view of the present utility model;

FIG. 3 is a schematic view of the structure of the protection tile of the present utility model when the protection tile is rectangular;

FIG. 4 is a schematic view of the structure of the protection tile of the present utility model when it is circular;

wherein: 1-a soot blower; 2-water cooling walls; 3-protective tile.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model is described in further detail below with reference to the attached drawing figures:

a boiler system having a water wall leakage prevention device, the boiler system comprising: the water wall 2, the soot blower 1 and the protection tile 3 corresponding to the soot blower 2; the soot blower 1 comprises a steam generating device, a gas pipe and a nozzle; wherein, the air pipe penetrates through the water cooling wall 2; the first end of the conveying pipe is connected with the steam generating device and is used for conveying steam; the second end of the conveying pipe is connected with a spray head, and the spray head sprays in the direction parallel to the water cooling wall 2 by taking the axis of the conveying pipe as the center; the protection tile 3 is installed on the surface of the water-cooled wall 2 and covers the injection range of the soot blower 2. Because the soot blower 1 sprays high-temperature steam, corrosion can be caused to the water-cooled wall 2, the protective tile 3 is additionally arranged in the range of the water-cooled wall 2 covered by the steam, and only the single protective tile 3 is needed to be replaced after corrosion, so that the whole water-cooled wall 2 is not needed to be replaced. And the maintenance cost is reduced.

In the embodiment of the utility model, the distance between the spray head and the water cooling wall 3 is 38mm; the spray radius of the spray head is 1.5m; the protection tile 2 covers a circle with a radius of 1.5m taking the axis of the conveying pipe as the center of a circle.

In the embodiment of the utility model, as shown in fig. 3, the protection tile 3 is rectangular with an inscribed circle radius of at least 1.5m, and the rectangular protection tile can reduce the processing cost.

In the embodiment of the utility model, as shown in fig. 4, the protection tile 3 is circular with a radius of at least 1.5m, and the circular protection tile saves materials.

In an alternative embodiment, the protective tiles 3 are strip-shaped; the plurality of protection tiles 3 are combined and cover on the circumference with the radius of 1.5m taking the soot blower 1 as the center, and only the protection tiles 3 with serious corrosion need to be replaced when the protection tiles are replaced, so that the maintenance cost is reduced.

As an example, the cross section of the protection tile 3 is corrugated to attach to the surface of the water-cooled wall 2, and the protection tile 3 is corrugated to attach to the water-cooled wall 2 further, so as to improve the protection performance.

In the example, the protection tile 1 is welded on the water-cooled wall 2, so that the operation is simpler.

In practical use, the number of soot blowers 1 is a plurality; each sootblower 1 is provided with a set of protection tiles 3.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A boiler system having a water wall leakage prevention device, the boiler system comprising: the device comprises a water wall (2), a soot blower (1) and a protection tile (3) corresponding to the soot blower (1);

the soot blower (1) comprises a steam generating device, a gas pipe and a nozzle; wherein the gas pipe penetrates through the water cooling wall (2); the first end of the gas pipe is connected with the steam generating device and is used for conveying steam; the second end of the air pipe is connected with the spray head, and the spray head sprays in the direction parallel to the water cooling wall (2) by taking the axis of the air pipe as the center;

the protection tile (3) is arranged on the surface of the water-cooled wall (2) and covers the spraying range of the soot blower (1).

2. A boiler system with water wall leakage prevention means according to claim 1, characterized in that the distance of the spray heads from the water wall (2) is 38mm; the spraying radius of the spray head is 1.5m; the protection tile (3) covers a circle with the radius of 1.5m by taking the axis of the gas pipe as the center of a circle.

3. A boiler system with water wall leakage prevention means according to claim 1, characterized in that the protection tiles (3) are rectangular with an inscribed circle radius of at least 1.5 m.

4. A boiler system with water wall leakage prevention means according to claim 1, characterized in that the protection tiles (3) are circular with a radius of at least 1.5 m.

5. A boiler system with water wall leakage prevention means according to claim 1, characterized in that the protection tiles (3) are strip-shaped; a plurality of protection tiles (3) are combined and cover a round shape with a radius of 1.5m taking the soot blower (1) as the center.

6. A boiler system with means for preventing water wall leakage according to any of the claims 1-4, characterized in that the cross section of the protection tiles (3) is corrugated to fit the surface of the water wall (2).

7. A boiler system with water wall leakage prevention means according to claim 5, characterized in that the protection tiles (3) are welded to the water wall (2).

8. A boiler system with water wall leakage prevention means according to any of the claims 1-5, characterized in that the number of soot blowers (1) is plural; each soot blower (1) is provided with a set of protection tiles (3).