Anti-abrasion hood

Abstract

The utility model relates to the technical field of air cap structures, in particular to an anti-abrasion air cap which comprises a bottom pipe, the top end of the bottom pipe is fixedly connected with an air cap, the air cap comprises an outer cover and a connecting pipe fixed with the outer cover, a plurality of groups of side holes are formed in the side wall of the outer cover, and the side holes are fixedly connected with a branch pipe; the connecting pipe is fixed at the bottom end of the outer cover, and the inner side wall of the connecting pipe is meshed and fixed with the outer side wall of the bottom pipe; the side holes are formed in the outer cover at equal intervals in an array mode, openings of the branch pipes face the bottom and are parallel to the bottom pipe, a user can disperse the airflow direction in the hood through the branch pipe structures through the formed side holes and the branch pipe structures, the airflow pressure can be firstly improved through the obliquely-arranged branch pipe structures, and large particulate matter can be left in the outer cover; the problem of blockage is reduced, airflow flowing back to the air inlet cap is effectively prevented from directly scouring the outer wall of the air inlet pipe, abrasion of the outer wall of the air inlet pipe is avoided, and the service life of the air inlet pipe is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of windproof ... Background Technology

[0002] Boiler air caps are part of the boiler air distribution system, a crucial component of circulating fluidized bed boilers. The air distribution system's function is to ensure even airflow into the bottom section of the boiling zone, guaranteeing optimal combustion temperature for the fuel. The air distribution system consists of air distribution plates and boiler air caps. Air caps come in various shapes, including mushroom, cylindrical, spherical, and umbrella-shaped. The most widely used type in my country is the mushroom-shaped air cap.

[0003] The existing boiler vent caps have horizontally oriented air outlets, which cause large ash particles to clog the air outlets. Furthermore, the airflow from the air outlets can easily wash over adjacent vent caps, causing wear and tear. Utility Model Content

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a wear-resistant wind cap, which can effectively solve the problems of large dust particles clogging the air outlet and the airflow from the air outlet easily washing over adjacent wind caps, causing wear to the wind caps.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a wear-resistant wind cap, including a bottom tube, the top end of which is connected and fixed to the wind cap. The wind cap includes an outer cover and a connecting tube fixed thereto. Multiple sets of side holes are opened on the side wall of the outer cover, and the side holes are fixedly connected to the branch tube.

[0009] Furthermore, the connecting pipe is fixed to the bottom end of the outer cover, and the inner sidewall of the connecting pipe is engaged and fixed with the outer sidewall of the bottom pipe.

[0010] Furthermore, multiple sets of side holes are equidistantly arrayed on the outer cover, and the openings of the branch pipes face the bottom and are parallel to the bottom pipe.

[0011] Furthermore, the angle between the branch pipe and the side hole and the transverse axis of the outer cover is 15° to 30°.

[0012] Furthermore, the outer cover has a trumpet-shaped structure that is smaller at the top and larger at the bottom. Beneficial effects

[0013] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0014] This utility model uses a wind cap structure and a bottom tube structure for meshing and fixing connection. The outer cover structure in the wind cap is meshed and fixed with the bottom tube through a connecting tube structure. The bottom tube structure is larger in size than the side wall width of the outer cover, resulting in better contact effect. After long-term use, it can reduce the impact of rotational wear and extend the service life.

[0015] In this device, through the multiple sets of side holes and branch pipe structures, the user can disperse the airflow direction inside the hood through the branch pipe structure. The inclined branch pipe structure can first increase the airflow pressure, and larger particles can be retained inside the outer cover, reducing the occurrence of blockage problems. It effectively prevents the backflow of air into the hood from directly scouring the outer wall of the air inlet pipe, avoiding wear on the outer wall of the air inlet pipe and extending the service life of the air inlet pipe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an exploded view of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the structure in this utility model;

[0020] Figure 4 This is a cross-sectional structural exploded view of the present invention.

[0021] The labels in the diagram represent: 1. Bottom pipe; 2. Vent cap; 21. Outer cover; 22. Connecting pipe; 23. Side hole; 3. Branch pipe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] The present invention will be further described below with reference to the embodiments.

[0024] Example: A wear-resistant windproof hood, see attached document. Figure 1 -Appendix Figure 4 The system includes a bottom tube 1, the top end of which is connected and fixed to a hood 2. The hood 2 includes an outer cover 21 and a connecting pipe 22 fixed thereto. The outer cover 21 has multiple sets of side holes 23 on its side wall, and the side holes 23 are fixedly connected to a branch pipe 3. The hood 2 structure and the bottom tube 1 structure are engaged and fixedly connected through the structure of the hood 2. The outer cover 21 structure in the hood 2 is engaged and fixed to the bottom tube 1 through the connecting pipe 22 structure. The bottom tube 1 structure is larger than the side wall width of the outer cover 21, resulting in better contact effect. After long-term use, it can reduce the impact of rotational wear and extend the service life.

[0025] The connecting pipe 22 is fixed to the bottom end of the outer cover 21, and the inner side wall of the connecting pipe 22 is engaged and fixed with the outer side wall of the bottom pipe 1; multiple sets of side holes 23 are equidistantly arrayed on the outer cover 21, and the opening of the branch pipe 3 faces the bottom and is parallel to the bottom pipe 1.

[0026] The angle between the branch pipe 3 and the side hole 23 and the horizontal axis of the outer cover 21 is 15° to 30°; the outer cover 21 is a trumpet-shaped structure with a smaller top and a larger bottom; in this device, through the multiple sets of side holes 23 and branch pipe 3 structures, the user can disperse the airflow direction inside the hood 2 through the branch pipe 3 structure. The inclined branch pipe 3 structure can first increase the airflow pressure, and larger particles can remain inside the outer cover 21, reducing the occurrence of blockage problems. It effectively prevents the backflow of air into the hood 2 from directly scouring the outer wall of the air inlet pipe, avoiding wear on the outer wall of the air inlet pipe and extending the service life of the air inlet pipe.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An abrasion resistant hood, characterized in that, It includes bottom pipe (1), the top end of bottom pipe (1) is connected with the fixed hood (2), the hood (2) includes cover (21) and fixed connecting pipe (22) thereof, the side wall of cover (21) is provided with multiple groups of side holes (23), the side hole (23) is fixedly connected with branch pipe (3).

2. A wear-preventing hood as claimed in claim 1, characterized in that The connecting pipe (22) is fixed to the bottom end of the cover (21), and the inner side wall of the connecting pipe (22) is engaged with the outer side wall of the bottom pipe (1).

3. A wear-preventing hood as claimed in claim 1, characterized in that The side hole (23) is provided with multiple groups of equidistant arrays on the cover (21), and the opening of the branch pipe (3) faces the bottom and is parallel to the bottom pipe (1).

4. A wear-preventing hood as claimed in claim 1, characterized in that The included angle between the branch pipe (3) and the side hole (23) and the transverse axis of the cover (21) is 15°-30°.

5. A wear-preventing hood as claimed in claim 4, characterized in that The cover (21) is a horn-shaped structure with small upper part and large lower part.

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