Boiler economizer anti-abrasion fixing device

Abstract

A boiler economizer anti-abrasion fixing device belongs to the technical field of boiler, it contains T type board and several character shape anti-abrasion board, the upper surface of each economizer pipe located at the center line of tail flue both sides is installed with arc anti-abrasion cover plate, the upper surface of at least two arc anti-abrasion cover plates of each side is provided with T type board, T type board is arranged horizontally along the axial direction of economizer pipe, the long arm end of T type board is fixed to the upper surface of arc anti-abrasion cover plate, T type board and arc anti-abrasion cover plate have space, the lower wing plate of several character shape anti-abrasion board is clamped into the space and can be moved, the utility model has considered the problem that the deformation of economizer cover plate is uncontrollable in the actual boiler operation process, and has simple structure and high practicability.

Description

Technical Field

[0001] This utility model relates to anti-wear devices, specifically an anti-wear fixing device for a boiler economizer, belonging to the field of boiler technology. Background Technology

[0002] Anti-wear bends need to be installed at the center line of the flue at the tail end of the economizer tube bank to prevent the formation of flue gas corridors between the tube banks. Generally, these anti-wear bends are welded to the economizer anti-wear covers on both sides. Due to the long length of the anti-wear bends and the deformation of the anti-wear covers on both sides due to the high temperature flue gas, the anti-wear bends may become severely deformed and warped. In severe cases, they may pull and deform the economizer anti-wear covers on both sides. Utility Model Content

[0003] This invention provides a boiler economizer anti-wear fixing device to overcome existing technologies. This device is not deformed by high-temperature flue gas erosion, avoiding the phenomenon of wear-resistant cover plate being pulled and deformed. At the same time, it prevents the lateral impact force generated by flue gas flow on the economizer tube, thus protecting the economizer tube.

[0004] A boiler economizer anti-wear fixing device includes a T-shaped plate and a Z-shaped anti-wear plate; an arc-shaped anti-wear cover is installed on the upper surface of each economizer tube located on both sides of the center line of the tail flue, and at least two arc-shaped anti-wear cover plates on each side are provided with T-shaped plates on their upper surfaces. The T-shaped plates are arranged horizontally along the axial direction of the economizer tube, and the long arm end of the T-shaped plate is fixed to the upper surface of the arc-shaped anti-wear cover plate. There is a space between the T-shaped plate and the arc-shaped anti-wear cover plate, and the lower flange of the Z-shaped anti-wear plate is inserted into the space and is movable.

[0005] Furthermore, the T-shaped plates on both sides are arranged symmetrically along the center line of the tail flue.

[0006] The advantages of this utility model compared to the prior art are:

[0007] This utility model fully considers the problem of uncontrollable deformation of the economizer cover plate due to heat during actual boiler operation. It has a simple structure, high practicality, and can be widely promoted and used. When heated, the Z-shaped anti-wear plate can expand and move freely without being deformed by the high-temperature flue gas. When the arc-shaped anti-wear cover plates on both sides of the economizer tube bank expand, they can be absorbed by the Z-shaped anti-wear plate, avoiding the phenomenon of anti-wear cover plate being pulled and deformed. At the same time, it prevents the lateral impact force generated by the flue gas flow on the economizer tube, thus playing a protective role for the economizer tube.

[0008] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments: Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the anti-wear fixing device for the boiler economizer of this utility model;

[0010] Figure 2 This is a side view of the anti-wear fixing device for the boiler economizer of this utility model;

[0011] Figure 3 This is a schematic diagram of a Z-shaped abrasion protection plate.

[0012] in:

[0013] 1. T-shaped fixing plate;

[0014] 2. Z-shaped abrasion plate; 21. V-shaped plate; 22. Wing plate;

[0015] 3. Anti-wear cover plate;

[0016] 4. Economizer tube;

[0017] 5. Erecting board. Detailed Implementation

[0018] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Unless otherwise stated, the technical or scientific terms used in this application have the ordinary meaning as understood by those skilled in the art to which this invention pertains.

[0019] Example 1: A boiler economizer anti-wear fixing device includes a T-shaped plate 1, a Z-shaped anti-wear plate 2, and an arc-shaped anti-wear cover plate 3;

[0020] An arc-shaped anti-wear cover plate 3 is installed on the upper surface of each economizer tube 4 located on both sides of the center line C of the tail flue. At least two arc-shaped anti-wear cover plates 3 on each side are provided with T-shaped plates 1 on their upper surfaces. The T-shaped plates 1 are arranged horizontally along the axial direction of the economizer tube 4. The long arm end of the T-shaped plate 1 is fixed to the upper surface of the arc-shaped anti-wear cover plate 3. There is a space between the T-shaped plate 1 and the arc-shaped anti-wear cover plate 3. The lower wing plate of the Z-shaped anti-wear plate 2 is inserted into the space and can move.

[0021] In this embodiment, the T-shaped plate is fixed or welded to the upper surface of the arc-shaped anti-wear cover plate 3 on both sides of the center line of the tail flue. Then, the Z-shaped anti-wear plate 2 is inserted into the space between the T-shaped plate 1 and the anti-wear cover plate 3 without welding. When heated, the Z-shaped anti-wear plate 2 can expand and move freely without being deformed by the high-temperature flue gas. When the arc-shaped anti-wear cover plate 3 on both sides of the economizer tube bank expands, it can be absorbed by the Z-shaped anti-wear plate 2, avoiding the phenomenon of the anti-wear cover plate 3 being stretched and deformed. At the same time, it prevents the lateral impact force generated by the flue gas flow on the economizer tube 4, thus playing a protective role for the economizer tube 4.

[0022] Furthermore, the horizontal arm end of the T-shaped plate 1 is fixed to the arc-shaped anti-wear cover plate 3 by the vertical plate 5.

[0023] Furthermore, the horizontal arm of the T-shaped plate 1 is welded to the vertical plate 5, and the vertical plate 5 is welded to the arc-shaped anti-wear cover plate 3. The welded connection is reliable and stable, and the vertical plate 5 and the T-shaped plate 1 together form an irregularly shaped plate.

[0024] Example 2: The T-shaped plates 1 on both sides are symmetrically arranged along the center line C of the tail flue. The symmetrical arrangement of the T-shaped plates can effectively balance the lateral impact force generated by the flue gas flow on the economizer tube 4, reduce vibration and wear caused by uneven force, and thus improve the overall stability and service life of the anti-wear device.

[0025] Example 3: T-shaped plates 1 on the same side are arranged at intervals of N economizer tubes 4, for example... Figure 2 There are three intervals in the middle. T-shaped plates are welded to the arc-shaped anti-wear covers 3 on both sides of the center line of the tail flue, arranged at certain intervals. This saves T-shaped plate material and ensures that the Z-shaped anti-wear plates 2 are securely inserted into the space of the T-shaped plates without welding. When heated, the Z-shaped anti-wear covers can expand freely, and the expansion of the economizer tube bank anti-wear covers on both sides can be absorbed by the Z-shaped anti-wear covers.

[0026] Both the T-shaped plate 1 and the Z-shaped wear-resistant plate 2 are made of stainless steel, which is readily available and easy to use. The Z-shaped wear-resistant plate 2 comprises an integrally formed V-shaped plate 21 and two wing plates 22, with horizontally arranged wing plates 22 connected to both ends of the V-shaped plate 21. This structure of the Z-shaped wear-resistant plate 2 provides good elasticity and performance, meeting the requirements of actual working conditions.

[0027] The present invention has been disclosed above with reference to preferred embodiments, but it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention, and such modifications or alterations shall still fall within the scope of the present invention.

Claims

1. A boiler economizer anti-abrasion fixing device, characterized in that: Includes a T-shaped plate (1) and a Z-shaped abrasion plate (2); An arc-shaped anti-wear cover plate (3) is installed on the upper surface of each economizer tube (4) located on both sides of the center line (C) of the tail flue. At least two arc-shaped anti-wear covers (3) on each side are provided with T-shaped plates (1) on their upper surfaces. The T-shaped plates (1) are arranged horizontally along the axial direction of the economizer tube (4). The long arm end of the T-shaped plate (1) is fixed to the upper surface of the arc-shaped anti-wear cover plate (3). There is a space between the T-shaped plate (1) and the arc-shaped anti-wear cover plate (3). The lower wing plate of the zig-shaped anti-wear plate (2) is inserted into the space and can move.

2. The fixed device for preventing abrasion of a boiler economizer according to claim 1, wherein: The horizontal arm end of the T-shaped plate (1) is fixed to the arc-shaped anti-wear cover plate (3) by the vertical plate (5).

3. The fixed device for preventing abrasion of a boiler economizer according to claim 2, characterized in that: The horizontal arm of the T-shaped plate (1) is welded to the vertical plate (5), and the vertical plate (5) is welded to the arc-shaped anti-wear cover plate (3).

4. The fixed device for preventing abrasion of a boiler economizer according to claim 1, wherein: The T-shaped plates (1) on both sides are arranged symmetrically along the center line (C) of the tail flue.

5. The fixed device for preventing abrasion of a boiler economizer according to claim 1, characterized in that: The T-shaped plate (1) on the same side is arranged with N economizer tubes (4) spaced apart.

6. The fixed device for preventing abrasion of a boiler economizer according to claim 1, wherein: Both the T-shaped plate (1) and the Z-shaped wear-resistant plate (2) are stainless steel plates.

7. The fixed device for preventing abrasion of a boiler economizer according to claim 1, wherein: The zigzag abrasion plate (2) comprises an integrally formed V-shaped plate (21) and two wing plates (22), with horizontally arranged wing plates (22) connected to both ends of the V-shaped plate (21).

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