CN214501219U

CN214501219U - Air-gas mixing fin of combustor and gas combustor

Info

Publication number: CN214501219U
Application number: CN202120355021.0U
Authority: CN
Inventors: 周盘良
Original assignee: Wuxi Ruineng Electromechanical Equipment Co ltd
Current assignee: Wuxi Ruineng Electromechanical Equipment Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-10-26
Anticipated expiration: 2031-02-08

Abstract

The utility model discloses a mixed fin of wind gas and gas burner of combustor, the mixed fin of wind gas of this combustor include the fin board, and a plurality of wind circulation hole have been seted up to the fin board from bottom to top, and every wind circulation hole includes a plurality of wind circulation hole of equidistance interval arrangement, and the fin board is the heated surface with the contact surface of flame, and the another side is the non-heated surface, is provided with the recess in the middle part of the heated surface, and aperture and the hole interval of a plurality of wind circulation hole from bottom to top increase in proper order. The air circulation holes of the air-air mixing fin of the burner are non-uniformly distributed from top to bottom from small to large, and different arrangement densities are adopted, so that the longitudinal depth of the fin is increased, the ignition success rate when flame is formed is ensured, and the burner is more favorable for full mixing combustion of gas and air. The elliptical groove of the heating surface well absorbs expansion and contraction of the fin plate, and the probability of deformation of the fin due to expansion and contraction is greatly reduced.

Description

Air-gas mixing fin of combustor and gas combustor

Technical Field

The utility model belongs to the technical field of the combustor, especially, relate to a mixed fin of wind gas and gas burner of combustor.

Background

The target group of the burner is wide, and the incinerator, the smelting furnace and the ceramic kiln have the fields of forging, smelting furnace, heat treatment and the like, and the burner is essential in the industries related to heat energy. The gas burner is a kind of burner, which enables gas and air to enter a combustion zone separately or in a mixed manner to achieve stable combustion. The fuel gas includes acetylene, natural gas or propane. Gas burners have been widely used in residential and industrial fields, from ordinary kitchen stoves to hospitals, restaurants, outdoor barbecues, industrial stoves, boilers, and the like.

The air-air mixing fin is an essential important component on the gas burner. The existing air-air mixing fin adopts simple crease stamping, some vertical folding stamping and some transverse folding stamping. The extension direction of the fin heating surface after being contacted with flame is towards the periphery instead of the single direction, and due to the high temperature of the flame, the problems of fin deformation, side cover plate deformation and the like can occur after long-time operation, and the stability of gas combustion is seriously influenced even.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned problem, a wind-gas mixing fin of combustor is provided to there is the yielding problem of being heated in the wind-gas mixing fin of combustor among the solution prior art.

Another object of the present invention is to solve the above problems, and to provide a gas burner, which solves the problem of poor stability of gas combustion in the prior art.

The utility model aims at realizing through the following technical scheme:

the utility model provides a mixed fin of wind-gas of combustor, its includes the fin board, a plurality of leeward circulation hole have been seted up to the fin board from bottom to top, and every leeward circulation hole includes a plurality of leeward circulation hole of equidistance interval arrangement, wherein, the fin board is the heating surface with the contact surface of flame, and the another side is the non-heating surface, the heating surface middle part is provided with the recess, aperture and hole interval from bottom to top of a plurality of leeward circulation holes increase in proper order.

As the utility model discloses a preferred scheme, the whole square structure that is of fin board, its four sides all extend to the non-heated surface and have the limit of bending, a plurality of connecting hole has been seted up to the edge of bending.

As an optimal scheme of the utility model, the wind circulation hole of two adjacent lines in a plurality of wind circulation holes is crisscross arranges each other.

As a preferred scheme of the utility model, the connecting hole is including the second connecting hole that is used for being fixed in the first connecting hole on the central trachea with the fin board and is used for connecting two adjacent fin boards, first connecting hole is seted up on the edge of bending of fin board bottom, the second connecting hole is seted up on the edge of bending of fin board both sides.

As an optimized proposal of the utility model, the groove is an oval structure.

A gas burner, wherein, the gas burner includes the wind gas mixing fin of above-mentioned combustor.

The beneficial effects of the utility model are that, the mixed fin of wind gas of combustor adopts heat-resisting alloy steel material. The air circulation holes are designed by fluid mechanics simulation, are non-uniformly distributed from top to bottom from small to large, adopt different arrangement densities, increase the longitudinal depth of the fins, ensure the ignition success rate when flame is formed, and are more favorable for full mixed combustion of gas and air. The gas generates a large amount of heat during combustion, the heating surface can expand when heated, the normal temperature can be recovered when the engine is stopped, the elliptical groove of the heating surface well absorbs expansion caused by heat and contraction caused by cold, and the probability of deformation of the fin caused by expansion caused by heat and contraction caused by cold is greatly reduced.

Drawings

FIG. 1 is a front view of a burner air mixing fin according to an embodiment of the present invention;

FIG. 2 is a side view of a burner air mixing fin according to an embodiment of the present invention;

fig. 3 is an assembly schematic view of an air-air mixing fin of a burner according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, in the present embodiment, a gas burner includes a central gas pipe 1 and air-air mixing fins 2 installed on two sides of a gas orifice of the central gas pipe 1 and forming a certain included angle, the air-air mixing fins 2 are formed by punching and bending heat-resistant alloy steel, and include a fin plate 20 that is square as a whole, the fin plate 20 is provided with a plurality of air circulation holes 21 from bottom to top, each air circulation hole 21 includes a plurality of circular air circulation holes 21 arranged at equal intervals, a contact surface of the fin plate 20 and a flame 3 is a heated surface 22, another surface is a non-heated surface 23, an elliptical groove 24 is provided in a middle portion of the heated surface 22, and apertures and hole pitches of the plurality of air circulation holes 21 from bottom to top are sequentially increased.

Four side edges of the fin plate 20 extend towards one side of the non-heated surface 23 to form an upper bending edge 25, a lower bending edge 26 and a lateral bending edge 27, the lower bending edge 27 is provided with a plurality of first connecting holes 28 for fixing the fin plate 20 on the central air pipe 1, two ends of the upper bending edge 25 and two ends of the lower bending edge 27 extend towards one side of the non-heated surface 23 to form a connecting bending edge 29, and the lateral bending edge 27 and the connecting bending edge 29 are provided with a plurality of second connecting holes 30 for connecting two adjacent fin plates 20.

When the gas burner works, fuel gas is introduced into the central gas pipe 1, combustion-supporting air is introduced into the periphery of the central gas pipe 2, and the combustion-supporting air is mixed with the fuel gas through the air-gas mixing fins 2 and then ignited. The direction of the arrows in fig. 3 is the flow direction of the combustion air.

The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims.

Claims

1. The utility model provides a mixed fin of wind gas of combustor, its includes the fin board, a plurality of wind circulation hole have been seted up to the fin board from bottom to top, and every wind circulation hole includes a plurality of wind circulation hole that equidistance interval arranged, its characterized in that: the contact surface of the fin plate and the flame is a heating surface, the other surface of the fin plate is a non-heating surface, a groove is formed in the middle of the heating surface, and the hole diameter and the hole distance of the plurality of air circulation holes from bottom to top are sequentially increased.

2. The air-gas mixing fin for a burner of claim 1, wherein: the fin plate is integrally of a square structure, four side edges of the fin plate extend to the non-heating surface to form bending edges, and a plurality of connecting holes are formed in the bending edges.

3. The air-gas mixing fin for a burner of claim 1, wherein: the wind circulation holes in two adjacent rows of the plurality of wind circulation holes are arranged in a staggered mode.

4. The air-gas mixing fin for a burner of claim 2, wherein: the connecting holes comprise first connecting holes used for fixing the fin plates on the central air pipe and second connecting holes used for connecting two adjacent fin plates, the first connecting holes are formed in the bent edges at the bottom ends of the fin plates, and the second connecting holes are formed in the bent edges at two sides of the fin plates.

5. The air-gas mixing fin for a burner of claim 1, wherein: the groove is of an oval structure.

6. A gas burner characterized by: comprising the air-mixing fin of a burner as claimed in any one of the preceding claims 1 to 5.