CN220061794U - Steam soot blowing protection device and superheater - Google Patents

Abstract

The utility model relates to a steam soot blowing protector and superheater, this steam soot blowing protector include first guard plate and second guard plate, the second guard plate connect in first guard plate, first guard plate is used for with heating the face union coupling, the one side of first guard plate orientation heating the face pipe, the second guard plate is used for with hang the union coupling, the one side of second guard plate orientation hang the pipe. The first protection plate communicated with the steam soot blowing protection device can protect the heating surface pipe, and the second protection plate can protect the suspension pipe, so that the position, close to the interconnection position, of the heating surface pipe and the suspension pipe is prevented from being blown by steam directly or blown by steam vortex or worn, the service lives of the heating surface pipe and the suspension pipe are prolonged, and normal power generation operation is guaranteed.

Description

Steam soot blowing protection device and superheater

Technical Field

The disclosure relates to the technical field of thermal power generation, in particular to a steam soot blowing protection device and a superheater.

Background

The superheater of the boiler is provided with a suspension pipe and a heating surface pipe, and in order to ensure the normal operation of the superheater, the suspension pipe and the heating surface pipe are required to be subjected to steam soot blowing operation.

In the related art, in order to facilitate connection between the suspension pipe and the heating surface pipe, the position of the suspension pipe close to the heating surface pipe and the position of the heating surface pipe close to the suspension pipe are not provided with any protection structure, and when the suspension pipe and the heating surface pipe are exposed to steam blowing for a long time, blowing damage and abrasion of steam vortex can occur on the surfaces of the suspension pipe and the heating surface pipe, so that the suspension pipe and the heating surface pipe can be thinned, the service lives of the suspension pipe and the heating surface pipe are influenced, and normal power generation is influenced.

Disclosure of Invention

It is an object of the present disclosure to provide a steam sootblowing protection device and a superheater to solve the above-mentioned problems in the related art.

In order to achieve the above-mentioned purpose, the present disclosure provides a steam soot blowing protector, including first guard plate and second guard plate, the second guard plate connect in first guard plate, first guard plate is used for with heating the face union coupling, the one side of first guard plate is towards heating the face pipe, the second guard plate is used for with hanging the union coupling, the one side of second guard plate is towards hang the union coupling.

Optionally, the first guard plate includes first plate body and form in the arc connecting plate of first plate body, the arc connecting plate be used for taking in heat the face pipe, first plate body is located heat one side of face pipe, the one side of first plate body is towards heat the face pipe, the both sides of arc connecting plate are provided with first connecting portion, first connecting portion be used for with heat the face pipe connection.

Optionally, the first plate body is followed the length direction extension setting of hanging the pipe, the quantity of arc connecting plate is two, two the arc connecting plate is located the first plate body is in the both ends of hanging the length direction of pipe.

Optionally, the arc-shaped connecting plate is configured to be a semi-cylindrical structure, so that the cross section of the arc-shaped connecting plate is of a semi-circular structure, and the inner diameter of the arc-shaped connecting plate is larger than the outer diameter of the heating surface pipe.

Optionally, the first protection plate further comprises a first wear-resistant layer, and the first wear-resistant layer is laid on one surface of the first plate body, which is away from the heating surface pipe, of the arc-shaped connecting plate.

Optionally, the second protection plate extends along the length direction of the hanging pipe, and two ends of the second protection plate in the length direction of the hanging pipe protrude out of the first protection plate.

Optionally, the second guard plate includes second plate body and second wearing layer, the second plate body has relative first face and the second face that sets up, the first face of second plate body is towards the pipe that hangs, the second wearing layer shop in the second face of second plate body.

Optionally, a second connecting portion is formed on the first surface of the second plate body, and the second connecting portion is used for being connected with the hanging tube.

Optionally, one side of the second protection plate is connected with one side of the first protection plate, which is away from the heating surface pipe, and the first protection plate and the second protection plate are arranged at an angle, and the angle is smaller than 180 degrees.

The second aspect of the present disclosure also provides a superheater comprising a heating surface pipe, a hanging pipe and the steam soot blowing protection device described above;

the heating surface pipe comprises a plurality of pipe bodies which are arranged in parallel, the pipe bodies are connected with the hanging pipe, a first protection plate of the steam soot blowing protection device is positioned on one side of the pipe bodies, one surface of the first protection plate faces the pipe bodies, the first protection plate is connected with at least one pipe body, a second protection plate of the steam soot blowing protection device is positioned on one side of the hanging pipe, and one surface of the second protection plate faces the hanging pipe and is connected with the hanging pipe.

According to the technical scheme, the first protection plate can protect the heating surface pipe, and the second protection plate can protect the suspension pipe, so that the position, close to the interconnection, of the heating surface pipe and the suspension pipe is prevented from being blown by steam directly or blown by steam vortex or worn, the position, close to the interconnection, of the heating surface pipe and the suspension pipe is protected, the service lives of the heating surface pipe and the suspension pipe are prolonged, and normal power generation operation is guaranteed. And through being connected first guard plate and heating surface pipe, the second guard plate is connected with the suspension pipe, can improve steam soot blowing protector's installation fixed strength, avoid dropping.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

FIG. 1 is a schematic perspective view of a steam sootblowing shield apparatus of an embodiment of the present disclosure;

FIG. 2 is a partial schematic structural view of a first fender according to one embodiment of the disclosure;

FIG. 3 is a partial schematic structural view of a second shield plate of one embodiment of the present disclosure;

FIG. 4 is a schematic structural view of a steam sootblower guard of one embodiment of the present disclosure in use.

Description of the reference numerals

1. The device comprises a first protection plate, 11, a first plate body, 12, an arc-shaped connection plate, 13, a first wear-resistant layer, 14, a first connection part, 2, a second protection plate, 21, a second plate body, 22, a second wear-resistant layer, 23, a second connection part, 3, a suspension pipe, 4, a heating surface pipe, 41 and a pipe body.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In the present disclosure, unless otherwise indicated, terms of orientation such as "upper, lower, left, right" are used generally in the direction of the drawing figures, and "inner, outer" refer to the inner, outer of the relevant parts. 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.

In the description of the present disclosure, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, directly connected, indirectly connected through an intermediary, or communicating between two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

The superheater of the boiler is provided with a hanging pipe 3 and a heating surface pipe 4, and in order to ensure the normal operation of the superheater, the hanging pipe 3 and the heating surface pipe 4 are required to be subjected to steam soot blowing operation.

In the related art, in order to facilitate connection between the suspension tube 3 and the heating surface tube 4, the position of the suspension tube 3 close to the heating surface tube 4 and the position of the heating surface tube 4 close to the suspension tube 3 are not provided with any protection structure, and when the suspension tube 3 and the heating surface tube 4 are exposed to steam purging for a long time, blowing damage and abrasion of steam vortex can occur on the surfaces of the suspension tube 3 and the heating surface tube 4, so that the suspension tube 3 and the heating surface tube 4 can be thinned, the service lives of the suspension tube 3 and the heating surface tube 4 are affected, and normal power generation is affected.

An anti-wear device for convection heating surface tubes 4 of boilers is disclosed in the published patent number CN201620466351.6, which is mainly protected against the abrasion of the heating surface tubes 4 by the flow of flue gas and the flow of soot-blown steam, but the protection of the suspension tubes 3 is not mentioned in this patent, and in practice the suspension tubes 3 are also subjected to the abrasion of the soot-blown steam.

To this end, as shown in fig. 1 to 4, an aspect of the present disclosure provides a steam soot blowing protection device including a first protection plate 1 and a second protection plate 2, the second protection plate 2 being connected to the first protection plate 1, the first protection plate 1 being for connection with a heated surface pipe 4, one side of the first protection plate 1 being directed toward the heated surface pipe 4, the second protection plate 2 being for connection with a hanging pipe 3, one side of the second protection plate 2 being directed toward the hanging pipe 3.

Wherein, first guard plate 1 and second guard plate 2 link together, and first guard plate 1 is used for producing the guard action to heating surface pipe 4, and second guard plate 2 is used for producing the guard action to hanging pipe 3.

It will be appreciated that the first protection plate 1 can block steam or steam vortex flowing toward the junction of the heating surface pipe 4 and the suspension pipe 3, and the steam or steam vortex acting on the heating surface pipe 4 is prevented from contacting the location of the heating surface pipe 4 near the suspension pipe 3, and the second protection plate 2 can block steam or steam vortex flowing toward the junction of the heating surface pipe 4 and the suspension pipe 3, and the steam or steam vortex acting on the suspension pipe 3 is prevented from contacting the location of the suspension pipe 3 near the heating surface pipe 4.

In the above technical scheme, the first protection plate 1 can generate a protection effect on the heating surface pipe 4, and the second protection plate 2 can generate a protection effect on the suspension pipe 3, so that the position, close to the interconnection position, of the heating surface pipe 4 and the suspension pipe 3 is prevented from being blown or worn by direct steam blowing or steam vortex, the position, close to the interconnection position, of the heating surface pipe 4 and the suspension pipe 3 is protected, the service lives of the heating surface pipe 4 and the suspension pipe 3 are prolonged, and normal power generation operation is guaranteed. And through being connected first guard plate 1 with heating surface pipe 4, second guard plate 2 is connected with hanging pipe 3, can improve steam soot blowing protector's installation fixed strength, avoid dropping.

In order to facilitate connection between the first protection plate 1 and the heating surface pipe 4, optionally, in one embodiment of the present disclosure, the first protection plate 1 includes a first plate body 11 and an arc-shaped connection plate 12 formed on the first plate body 11, where the arc-shaped connection plate 12 is used to be lapped on the heating surface pipe 4, the first plate body 11 is located on one side of the heating surface pipe 4, one surface of the first plate body 11 faces the heating surface pipe 4, two sides of the arc-shaped connection plate 12 are provided with first connection portions 14, and the first connection portions 14 are used to connect with the heating surface pipe 4.

The first plate body 11 and the arc-shaped connecting plate 12 are integrally formed, and the arc-shaped connecting plate 12 can be used for positioning the first plate body 11, so that the first plate body 11 is fixed on one side of the heating surface pipe 4, the position of the first plate body 11 can be kept fixed, and meanwhile, the arc-shaped connecting plate 12 can be directly lapped on the heating surface pipe 4, so that the assembly is very convenient.

The arc-shaped connecting plate 12 is connected with the heating surface pipe 4 through the first connecting part 14, so that the first protection plate 1 and the heating surface pipe 4 can be conveniently connected and fixed, the connection strength is improved, and falling is avoided. In some examples, the first connection portion 14 is configured as a welding point, the first connection portion 14 is connected to the outer wall of the heating surface pipe 4 by welding, and the number of the first connection portions 14 may be plural. In other examples, the first connection 14 may be configured as a clip, by means of which it is fastened to the heating surface tube 4. It should be noted that, the first connection portions 14 are located on two sides of the arc-shaped connection plate 12, that is, on two sides of the arc-shaped connection plate 12 in the length direction of the heating surface tube 4, so as to facilitate connection with the heating surface tube 4.

It should be noted that, the first plate 11 is mainly used for protecting the heating surface tube 4, and the arc-shaped connecting plate 12 is used for assisting in protecting.

Alternatively, in one embodiment of the present disclosure, the first plate 11 is extended along the length direction of the hanging tube 3, and the number of the arc-shaped connection plates 12 is two, and the two arc-shaped connection plates 12 are located at both ends of the first plate 11 in the length direction of the hanging tube 3.

The first plate 11 is in a long plate structure, and the first plate 11 extends along the length direction of the suspension tube 3, so that blocking protection can be guaranteed on all positions of the heating surface tube 4, which are close to the suspension tube 3, and the protection effect is improved. The two arc-shaped connecting plates 12 are respectively connected with the two sides of the heating surface pipe 4 in the length direction of the suspension pipe 3, so that the connection strength of the first protection plate 1 and the heating surface pipe 4 can be better improved.

Alternatively, in another embodiment of the present disclosure, the first plate body 11 is extended along the length direction of the suspension tube 3, the number of the arc-shaped connection plates 12 is one, one arc-shaped connection plate 12 is connected to one end of the first plate body 11, and is connected to the heating surface tube 4 through one arc-shaped connection plate 12, so that the connection between the first protection plate 1 and the heating surface tube 4 can be achieved.

Alternatively, in one embodiment of the present disclosure, the arc-shaped connection plate 12 is configured in a semi-cylindrical structure such that the cross section of the arc-shaped connection plate 12 is in a semi-circular structure, and the inner diameter of the arc-shaped connection plate 12 is larger than the outer diameter of the heating surface tube 4. By the arrangement, the arc-shaped connecting plate 12 can be better lapped on the heating surface pipe 4, the contact area between the arc-shaped connecting plate 12 and the heating surface pipe 4 is increased, and the connection strength can be improved.

In some examples, the inner diameter of the arcuate connecting plate 12 may be slightly larger than the outer diameter of the heated surface tube 4 such that the outer wall of the arcuate connecting plate 12 may at least partially contact the outer wall of the heated surface tube 4.

Alternatively, in one embodiment of the present disclosure, the cross-section of the arcuate web 12 may also be arcuate in configuration. Only the arc-shaped connecting plate 12 is required to be guaranteed to be lapped on the heating surface pipe 4.

To improve the heat insulation effect, optionally, in one embodiment of the present disclosure, the first protection plate 1 further includes a first wear layer 13, where the first wear layer 13 is laid on a side of the first plate body 11 and the arc-shaped connection plate 12 facing away from the heating surface tube 4.

The first wear-resistant layer 13 is used for improving the wear resistance of the first plate body 11, prolonging the service life of the first protection plate 1 and reducing the replacement frequency of the steam soot blowing protection device. In some examples, the first wear layer 13 may be a coating layer, which may be formed using a polymer modified resin coating. In other examples, the first wear layer 13 may be a wear resistant sheet material that is adhered to the first plate body 11. And the first plate body 11 and the arc-shaped connection plate 12 may be made of stainless steel materials.

Alternatively, in one embodiment of the present disclosure, the second shielding plate 2 is extended along the length direction of the hanging tube 3, and both ends of the second shielding plate 2 in the length direction of the hanging tube 3 protrude from the first shielding plate 1. Through so setting up can improve the protection scope of second guard plate 2 to hanging pipe 3, guarantee the guard action to hanging pipe 3.

Optionally, in one embodiment of the present disclosure, the second protection plate 2 includes a second plate body 21 and a second wear layer 22, the second plate body 21 has a first face and a second face that are disposed opposite to each other, the first face of the second plate body 21 faces the hanging tube 3, and the second wear layer 22 is laid on the second face of the second plate body 21.

Wherein, the first face of second plate body 21 is towards hanging pipe 3 for second plate body 21 is located one side of hanging pipe 3, can be convenient for be connected with hanging pipe 3, and the second wearing layer 22 that the second face of second plate body 21 set up can improve the wear resistance of second plate body 21, improves the life of second guard plate 2, reduces steam soot blowing protector's change frequency. In some examples, the second wear layer 22 may be a coating, which may be formed using a polymeric modified resin coating. In other examples, the second wear layer 22 may be a wear resistant sheet material that is adhered to the second plate body 21. And the second plate body 21 may be made of stainless steel material.

In order to facilitate the connection of the second plate body 21 with the suspension tube 3, optionally, in one embodiment of the present disclosure, the first face of the second plate body 21 is formed with a second connection portion 23, and the second connection portion 23 is used for connection with the suspension tube 3. The second plate body 21 and the hanging pipe 3 can be connected through the second connecting part 23, so that the connection strength is improved, and falling is avoided.

In some examples, the second connection portions 23 are configured as welding points, the second connection portions 23 are welded to the outer wall of the hanging tube 3, the number of the second connection portions 23 may be plural, and the plurality of second connection portions 23 may be arranged at intervals along the length direction of the hanging tube 3, so that the connection strength may be better improved. The second connecting portion 23 is disposed in the middle of the first surface of the second plate 21, so as to be welded to the suspension tube 3. In other examples, the second connection portion 23 may be configured as a clip, which is fixed to the suspension tube 3, and the clip may be fixed at a middle position of the first face of the first plate 11.

In order to improve the protection effect on the position of the suspension tube 3 and the heating surface tube 4 near the interconnection, optionally, in one embodiment of the present disclosure, one side of the second protection plate 2 is connected to a side of the first protection plate 1 facing away from the heating surface tube 4, and the first protection plate 1 and the second protection plate 2 are disposed at an angle, and the angle is smaller than 180 degrees. Through with first guard plate 1 and the crisscross setting of second guard plate 2 for first guard plate 1 and second guard plate 2 are the angle setting, can be convenient for first guard plate 1 be connected with heating surface pipe 4, second guard plate 2 is connected with hanging pipe 3, make the installation very convenient, make first guard plate 1 can be close to heating surface pipe 4 simultaneously, second guard plate 2 is close to hanging pipe 3, avoid first guard plate 1 and heating between surface pipe 4 and second guard plate 2 and hanging pipe 3 have great clearance space respectively, lead to steam vortex to enter into the condition emergence that clearance space influences heating surface pipe 4 and hanging pipe 3.

In some examples, the first and second shielding plates 1 and 2 are perpendicular, that is, the angle between the first and second shielding plates 1 and 2 is 90 degrees. By this arrangement, the vertical arrangement structure of the suspension tube 3 and the heating surface tube 4 can be adapted.

Alternatively, in another embodiment of the present disclosure, one end of the first shielding plate 1 is connected to one end of the second shielding plate 2, and the first shielding plate 1 and the second shielding plate 2 constitute one flat plate-like structure.

The second aspect of the present disclosure also provides a superheater comprising a heating surface pipe 4, a hanging pipe 3 and the steam soot blowing protection device described above;

the heating surface pipe 4 comprises a plurality of pipe bodies 41 which are arranged in parallel, the plurality of pipe bodies 41 are connected with the hanging pipe 3, a first protection plate 1 of the steam soot blowing protection device is positioned on one side of the plurality of pipe bodies 41, one surface of the first protection plate 1 faces the plurality of pipe bodies 41, the first protection plate 1 is connected with at least one pipe body 41, a second protection plate 2 of the steam soot blowing protection device is positioned on one side of the hanging pipe 3, and one surface of the second protection plate 2 faces the hanging pipe 3 and is connected with the hanging pipe 3.

Wherein, a plurality of body 41 are along the length direction interval setting of hanging pipe 3, and heating surface pipe 4 sets up with hanging pipe 3 is perpendicular, is provided with a plurality of connecting seats on the hanging pipe 3, and a plurality of connecting seats are along the length direction interval setting of hanging pipe 3, and a plurality of body 41 are connected in a connecting seat respectively.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims (10)

1. The utility model provides a steam soot blowing protector, its characterized in that includes first guard plate and second guard plate, the second guard plate connect in first guard plate, first guard plate is used for with heating the face union coupling, the one side of first guard plate orientation heating the face pipe, the second guard plate is used for with hang the union coupling, the one side of second guard plate orientation hang the pipe.

2. The steam soot blowing protection device of claim 1, wherein the first protection plate comprises a first plate body and an arc-shaped connection plate formed on the first plate body, the arc-shaped connection plate is used for being arranged on the heating surface pipe, the first plate body is located on one side of the heating surface pipe, one surface of the first plate body faces the heating surface pipe, first connection parts are arranged on two sides of the arc-shaped connection plate, and the first connection parts are used for being connected with the heating surface pipe.

3. The steam soot blowing protection device according to claim 2, wherein the first plate body is extended along the length direction of the hanging pipe, the number of the arc-shaped connecting plates is two, and the two arc-shaped connecting plates are positioned at two ends of the first plate body along the length direction of the hanging pipe.

4. The steam sootblower protection device of claim 2 wherein said arcuate connection plate is configured as a semi-cylindrical structure such that a cross-section of said arcuate connection plate is semi-circular in configuration, an inner diameter of said arcuate connection plate being greater than an outer diameter of said heated surface tube.

5. The steam sootblower protection device of claim 2 wherein said first protection panel further comprises a first wear layer disposed on a side of said first panel body and said arcuate connection panel facing away from said heated surface tube.

6. The steam soot blowing protection device according to claim 1, wherein the second protection plate is extended along the length direction of the hanging pipe, and both ends of the second protection plate in the length direction of the hanging pipe protrude from the first protection plate.

7. The steam sootblower protection device of claim 1 wherein the second protection panel comprises a second panel having oppositely disposed first and second faces, the first face of the second panel facing the hanger tube, and a second wear layer disposed on the second face of the second panel.

8. The steam sootblower protection device of claim 7 wherein the first face of the second plate body is formed with a second connection for connection with the hanger tube.

9. The steam sootblower protection device of any of claims 1-8 wherein a side of said second protection plate is coupled to a side of said first protection plate facing away from said heated surface tube, said first protection plate and said second protection plate being disposed at an angle, said angle being less than 180 degrees.

10. A superheater comprising a heated surface tube, a hanger tube and a steam sootblowing shield as claimed in any one of claims 1 to 9;

the heating surface pipe comprises a plurality of pipe bodies which are arranged in parallel, the pipe bodies are connected with the hanging pipe, a first protection plate of the steam soot blowing protection device is positioned on one side of the pipe bodies, one surface of the first protection plate faces the pipe bodies, the first protection plate is connected with at least one pipe body, a second protection plate of the steam soot blowing protection device is positioned on one side of the hanging pipe, and one surface of the second protection plate faces the hanging pipe and is connected with the hanging pipe.