CN219955373U

CN219955373U - Wear-resistant tile for tail flue

Info

Publication number: CN219955373U
Application number: CN202321653719.6U
Authority: CN
Inventors: 王美欢; 林星豪
Original assignee: Huaneng Fujian Energy Development Co Ltd Fuzhou Branch
Current assignee: Huaneng Fujian Energy Development Co Ltd Fuzhou Branch
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-11-03
Anticipated expiration: 2033-06-27

Abstract

The utility model relates to an abrasion-proof tile for a tail flue, which relates to the technical field of pipeline accessories, in particular to a pipeline abrasion-proof tile, comprising a straight Duan Fangmo tile, a horizontal abrasion-proof tile and a welding fixed tile, wherein the abrasion-proof tile can prevent dust accumulation and improve the heat exchange efficiency while providing protection; and the fixing is firmer, and the pipe is not easy to fall off due to expansion change of the pipe.

Description

Wear-resistant tile for tail flue

Technical Field

The utility model relates to an abrasion-proof tile of a tail flue, and belongs to the technical field of pipeline accessories.

Background

The wear-proof tile is a common fitting for heating surface pipes in a thermal power plant. The main purpose is to install on the boiler heating surface in the modes of welding, hoop enclasping, buckle connection and the like, and prevent the heating surface pipe from being partially thinned due to the reasons of soot blower, flue gas corridor, vibration impact grinding, dust accumulation corrosion and the like, thereby prolonging the service life of the heating surface pipe.

The wear-proof tiles used in the boiler are generally straight tiles, inner bent tiles, outer bent tiles and S-shaped tiles, and the wear-proof tiles with proper sizes can effectively protect a single pipe, but for the vertical cross connection position of a boiler tail flue low-temperature superheater and a serpentine pipe and a suspension pipe of a low-temperature reheater area, the common wear-proof tiles can only cover and protect the serpentine pipe and the suspension pipe, and for the vertical cross position, the traditional wear-proof tiles cannot completely cover and protect the position due to the special shape.

In order to solve the problem, a common scheme is to weld a section of angle steel at the vertical intersection of the coiled pipe and the suspension pipe, so as to prevent the tail flue steam soot blower from blowing damage and thinning at the position.

However, the solution method can lead to serious dust accumulation of the angle steel above the overhaul channel, which is unfavorable for heat exchange of the heating surface pipe, and on the other hand, the welded angle steel is easy to fall off and loses the protection effect due to the expansion change of the pipe caused by start-up and stop and lifting load.

Disclosure of Invention

The utility model aims to provide an abrasion-proof tile for a tail flue, which aims to solve the problems of heat exchange obstacle and part falling in the background technology.

The technical scheme of the utility model is as follows:

the abrasion-proof tile for the tail flue comprises a straight Duan Fangmo tile, a horizontal segment abrasion-proof tile and a welding fixed tile, wherein the welding fixed tile is fixedly connected to the lower end of the straight segment abrasion-proof tile, and the horizontal segment abrasion-proof tile is fixedly connected to the joint of the straight Duan Fangmo tile and the welding fixed tile; the welding fixed tile and the straight Duan Fangmo tile are fixedly arranged on the suspension pipe, and the horizontal segment anti-abrasion tile is arranged against the lower surface of the coiled pipe.

Preferably, the included angle alpha between the horizontal segment wear-proof tile and the straight segment wear-proof tile is 15 degrees.

Preferably, the length of the horizontal segment wear-resistant tile is 200mm, the width is 300mm, and the thickness is 3mm.

Preferably, the side surface of the straight Duan Fangmo watt is semicircular arc-shaped, the length is 150mm, the thickness is 5mm, and the inner diameter is 55mm.

Preferably, the length of the welding fixed tile is 150mm, the width is 30mm, and the thickness is 5mm.

Compared with the prior art, the utility model has the following beneficial effects:

1. the straight segment anti-abrasion tile can prevent the damage to the hanging pipe from thinning caused by smoke corridor and steam soot blowing formed by the dense coiled pipe, and further can prolong the service life of the hanging pipe.

2. The horizontal segment wear-resistant tile can effectively avoid damage of the tail flue coiled pipe caused by blowing loss and thinning of steam soot blowing and steam vortex scour and abrasion in the groove; meanwhile, an included angle of 15 degrees is formed between the horizontal segment wear-resistant tile and the straight segment wear-resistant tile, so that dust fall is facilitated when the unit operates, dust accumulation is not easy to occur, and the influence on heat exchange is small.

3. The novel tail flue anti-abrasion tile can be firmly fixed at the position of a pipe vertical cross pipe to be protected by the welding fixing tile, and is directly welded on one pipe row (namely a row of coiled pipes) and is not connected with other pipe rows, so that the novel tail flue anti-abrasion tile is not influenced by pipe expansion change caused by start-stop and lifting load and is not easy to fall off.

4. After the size is limited, the utility model ensures that the pipeline is not easy to fall off and plays a role in protection, and simultaneously reduces the load and the production cost of the pipeline.

Drawings

FIG. 1 is a schematic view of a first view of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model at a second viewing angle;

FIG. 3 is a schematic view of a third view of the present utility model;

FIG. 4 is a schematic view of the present utility model in a first view when installed with a hanging tube;

fig. 5 is a schematic view of the present utility model in a second view when installed with a hanging tube.

The reference numerals in the drawings are as follows:

1. straight Duan Fangmo watts; 2. wear-resistant tile at horizontal section; 3. welding and fixing the tile; 4. a serpentine tube; 5. the tube is suspended.

Detailed Description

The utility model will now be described in detail with reference to the drawings and to specific embodiments.

1-5, the abrasion-proof tile of the tail flue of the embodiment comprises a straight Duan Fangmo tile 1, a horizontal abrasion-proof tile 2 and a welding fixed tile 3, wherein the welding fixed tile 3 is fixedly connected to the lower end of the straight Duan Fangmo tile 1, and the horizontal abrasion-proof tile 2 is fixedly connected to the joint of the straight Duan Fangmo tile 1 and the welding fixed tile 3; the welding fixed tile 3 and the straight Duan Fangmo tile 1 are fixedly arranged on the suspension pipe 5, and the horizontal segment anti-abrasion tile 2 is arranged against the lower surface of the coiled pipe 4.

Preferably, the included angle alpha between the horizontal segment wear-resistant tile 2 and the straight Duan Fangmo tile 1 is 15 degrees;

preferably, the length of the horizontal segment wear-resistant tile 2 is 200mm, the width is 300mm, and the thickness is 3mm;

preferably, the side surface of the straight Duan Fangmo W1 is semicircular arc, the length is 150mm, the thickness is 5mm, and the inner diameter is 55mm;

preferably, the length of the welding fixed tile 3 is 150mm, the width is 30mm, and the thickness is 5mm.

The working principle of the utility model is as follows:

the welding fixed tile 3 is fixedly arranged on the coiled pipe 4, the straight Duan Fangmo tile 1 is attached to the suspension pipe 5, and the horizontal segment anti-abrasion tile 2 is attached to the lower surface of the coiled pipe 4;

the straight segment wear-resistant tile can prevent the damage to the hanging pipe from thinning caused by smoke corridor and steam soot blowing formed by the dense coiled pipe, so that the service life of the hanging pipe can be prolonged;

the horizontal segment wear-resistant tile can effectively avoid damage of the tail flue coiled pipe caused by blowing loss and thinning of steam soot blowing and steam vortex scour and abrasion in the groove; meanwhile, an included angle of 15 degrees is formed between the horizontal segment wear-resistant tile and the straight segment wear-resistant tile, so that dust fall is facilitated when the unit operates, dust accumulation is not easy to occur, and the influence on heat exchange is small;

the novel tail flue anti-abrasion tile can be firmly fixed at the position of a pipe vertical intersection pipe to be protected by welding the fixing tile, and is directly welded on one pipe row (namely a row of coiled pipes) and not connected with other pipe rows, so that the novel tail flue anti-abrasion tile is not influenced by pipe expansion change caused by start-stop and lifting loads and is not easy to fall off;

after the size is limited, the utility model ensures that the pipeline is not easy to fall off and plays a role in protection, and simultaneously reduces the load and the production cost of the pipeline.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; 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.

It will be apparent that the described embodiments are only some, but not all, 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.

Claims

1. The utility model provides a afterbody flue abrasionproof tile which characterized in that: the anti-abrasion device comprises a straight Duan Fangmo watt (1), a horizontal segment anti-abrasion watt (2) and a welding fixed watt (3), wherein the welding fixed watt (3) is fixedly connected to the lower end of the straight Duan Fangmo watt (1), and the horizontal segment anti-abrasion watt (2) is fixedly connected to the joint of the straight Duan Fangmo watt (1) and the welding fixed watt (3);

the welding fixed tile (3) and the straight Duan Fangmo tile (1) are fixedly installed on the suspension pipe (5) in a fitting manner along the length direction of the suspension pipe (5), and one end of the horizontal segment anti-abrasion tile (2) is attached to the lower surface of the coiled pipe (4).

2. The afterbody flue wear shoe of claim 1, wherein: the included angle alpha between the horizontal segment wear-resistant tile (2) and the bottom end of the straight Duan Fangmo tile (1) is 15 degrees.

3. The afterbody flue wear shoe of claim 2, wherein: the length of the horizontal segment wear-resistant tile (2) is 200mm, the width is 300mm, and the thickness is 3mm.

4. A afterburner wear shoe according to claim 3, wherein: the straight Duan Fangmo W (1) is of a semicircular arc sheet structure, the axial length of the straight Duan Fangmo W (1) is 150mm, the thickness is 5mm, and the inner diameter is 55mm.

5. The afterbody flue wear shoe as claimed in claim 4 wherein: the length of the welding fixed tile (3) is 150mm, the width is 30mm, and the thickness is 5mm.