CN220670197U

CN220670197U - Super-huge furnace tube with built-in stirring device

Info

Publication number: CN220670197U
Application number: CN202321666835.1U
Authority: CN
Inventors: 许志鹏; 李明新
Original assignee: Weifang New Innovative Material Technology Co ltd
Current assignee: Weifang New Innovative Material Technology Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2024-03-26
Anticipated expiration: 2033-06-28

Abstract

The utility model discloses an extra-large furnace tube with a built-in stirring device, which belongs to the technical field of silicon carbide and comprises a tube body, wherein a plurality of uniformly distributed inner convex strips are arranged in the tube body, one end of each inner convex strip, which is close to the center of the tube body, is provided with an arc surface, the distance between two side surfaces of each inner convex strip in the radial inward direction is gradually reduced, and the two side surfaces of each inner convex strip are symmetrically distributed along the center line of each inner convex strip.

Description

Super-huge furnace tube with built-in stirring device

Technical Field

The utility model relates to the technical field of silicon carbide, in particular to an extra-large furnace tube with a built-in stirring device.

Background

The furnace tube is used as the lining of various electric test furnaces, mainly separates heating elements from substances to be tested, seals a heating area and places the substances to be tested, has wide application range, relates to high-temperature test analysis instrument equipment in various industries, but gradually increases the inner diameter of the furnace tube, so that the diffusion of combustible gas in the furnace tube is more and more uneven due to the requirement of the fluidity of the combustible gas, and the combustion value of the combustible gas is reduced, so that the combustion value of the combustible gas is lower as the inner diameter of the furnace tube is larger, and the waste of energy is easily caused.

Disclosure of Invention

For the problems in the prior art, the extra-large furnace tube with the built-in stirring device provided by the utility model has the advantages that the inner convex strips are added in the tube body, so that the combustible gas is promoted to flow along the side surfaces of the obliquely arranged inner convex strips, the combustible gas can form disturbance in the furnace tube, the combustible gas is more uniformly mixed with air in the furnace tube, the combustible gas in the furnace tube can be disturbed, the mutual collision stirring of the combustible gas in the furnace tube can be realized, and the distribution of non-combustible gas in the tube body is more uniform.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a built-in agitating unit's super-huge boiler tube, includes the body, be equipped with a plurality of evenly distributed's interior sand grip in the body, interior sand grip is close to the one end at body center is established to the arc surface, along radial inward direction the distance between interior sand grip both sides face reduces gradually, interior sand grip both sides face is followed interior sand grip central line symmetric distribution.

Preferably, the shortest distance from the center of the pipe body to the inner convex strip is larger than 1|2 of the radius of the outer wall of the pipe body.

Preferably, at least 4 inner convex strips are arranged.

Preferably, the inner convex strips and the inner side surface of the pipe body are in arc transition.

Preferably, the pipe body and the inner convex strips are integrally formed by adopting silicon carbide materials.

Preferably, the included angle between the two side surfaces of the inner convex strip is set to be 30-60 degrees.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the inner raised strips are added in the tube body, so that the contact area between the combustible gas and the inner wall of the furnace tube can be effectively increased by utilizing the integrated design of the inner raised strips and the tube body, and the combustible gas is further promoted to flow along the side walls of the inner raised strips, so that the combustible gas forms disturbance in the furnace tube, and the combustible gas is more uniformly mixed with air in the furnace tube;

2. according to the utility model, the inner convex strips are in a conical design, the side surfaces of the inner convex strips are inclined surfaces, so that the combustible gas can be promoted to diffuse along the inclined surfaces, and meanwhile, the distance between the two side surfaces of the adjacent inner convex strips, which are close to each other, is gradually reduced along the radial inward direction, so that the combustible gas can be promoted to move inwards along the inclined side surfaces of the inner convex strips, and can collide with the combustible gas flowing from the circle center of the pipe body to the circular arc surface, the full mixing of the combustible gas in the pipe body is realized, and the distribution of the non-combustible gas in the pipe body is more uniform;

3. according to the utility model, the arc transition design is adopted between the two side surfaces of the inner convex strip and between the inner convex strip and the inner wall of the pipe body, so that the kinetic energy loss can be reduced when the combustible gas is contacted with the inner convex strip to change the direction, the contact area between the inner convex strip and the inner wall of the pipe body can be increased, and the structural strength of the inner convex strip on the pipe body is facilitated.

Drawings

FIG. 1 is a front view of an oversized furnace with a built-in stirring device according to the present utility model;

FIG. 2 is a left side view of an oversized furnace with a stirring device built in accordance with the present utility model.

In the figure: 1-pipe body and 2-internal convex strips.

Detailed Description

The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.

The extra-large furnace tube with the built-in stirring device shown in fig. 1-2 comprises a tube body 1, a plurality of uniformly distributed frustum-shaped inner convex strips 2 are arranged in the tube body 1, at least 4 inner convex strips 2 are arranged, the included angle between two side surfaces of each inner convex strip 2 is set to be 30-60 degrees, the inner convex strips 2 are added in the tube body 1, the contact area between the combustible gas and the inner wall of the furnace tube can be effectively improved by utilizing the integrated design of the inner convex strips 2 and the tube body 1, the flow velocity difference is formed between the circular arc surface and the inner wall of the furnace tube and between the circle center of the tube body 1 and the circular arc surface, the mixing of the combustible gas in the furnace tube can be promoted, the distance between the two side surfaces of each inner convex strip 2 is gradually reduced along the inner convex strip 2 in the radial inward direction, the two side surfaces of each inner convex strip 2 are symmetrically distributed along the central line of each inner convex strip 2, the inner convex strip 2 is designed to be inclined planes, the combustible gas can be promoted to diffuse along the inclined planes, meanwhile, the distance between the two side surfaces close to each other on the inner convex strips 2 can be gradually reduced along the radial inward direction, the inclined inner convex strips 2 can be promoted to move along the inclined side surfaces of the inner convex strips 2, the inner convex strips 1 and the circle center of the inner convex strips 1 can be more uniformly distributed in the tube, the inner tube can not collide with the inner tube 1, and the combustible gas can fully flow.

The shortest distance from the center of the circle of the pipe body 1 to the inner convex strips 2 is larger than 1|2 of the radius of the outer wall of the pipe body 1.

The one end that interior sand grip 2 is close to body 1 center is established to the arc surface, establish to the circular arc transition between frustum strip and the body 1 medial surface, all adopt the circular arc transition design between interior sand grip 2 both sides face and between interior sand grip 2 and the body 1 inner wall, both can promote the combustible gas and reduce kinetic energy loss when interior sand grip 2 contact changes the direction, can increase the area of contact of interior sand grip 2 and body 1 inner wall again, be favorable to interior sand grip 2 structural strength on body 1.

The pipe body 1 and the inner raised strips 2 are integrally formed by adopting silicon carbide materials, the structural strength between the pipe body 1 and the frustum strips can be further improved by integrally forming, and the heat conduction performance and the wear resistance of the furnace tube can be improved by adopting the silicon carbide materials, so that the heating effect and the service life of the furnace tube can be improved.

The length of the pipe body 1 is 5000mm, the diameter is 130mm, the wall thickness of the pipe body 1 is 12.5mm, the maximum distance between two side surfaces of the inner convex strip 2 is 15mm, and the height of the inner convex strip 2 is 15+/-1 mm.

The foregoing is merely illustrative and explanatory of the utility model, as it is well within the scope of the utility model as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a built-in agitating unit's super-huge boiler tube, its characterized in that includes the body, be equipped with a plurality of evenly distributed's interior sand grip in the body, interior sand grip is close to the one end at body center is established to the arc surface, along radial inwards direction the distance between the both sides face of interior sand grip reduces gradually, interior sand grip both sides face is followed interior sand grip central line symmetric distribution.

2. The extra large furnace tube with built-in stirring device according to claim 1, wherein the shortest distance from the center of the tube body to the inner convex strips is larger than 1|2 of the radius of the outer wall of the tube body.

3. The ultra-large furnace tube with built-in stirring device according to claim 1, wherein at least 4 internal raised strips are arranged.

4. The extra large furnace tube with the built-in stirring device according to claim 1, wherein the inner convex strips and the inner side surface of the tube body are in arc transition.

5. The ultra-large furnace tube with built-in stirring device according to claim 1, wherein the tube body and the inner convex strips are integrally formed by adopting silicon carbide materials.

6. The extra large furnace tube with built-in stirring device according to claim 1, wherein an included angle between two side surfaces of the inner convex strip is set to be 30-60 degrees.