CN2151392Y

CN2151392Y - Far-infrared gas burner

Info

Publication number: CN2151392Y
Application number: CN 93233449
Authority: CN
Inventors: 单丹
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-13
Filing date: 1993-03-13
Publication date: 1993-12-29
Anticipated expiration: 2003-03-13

Abstract

The utility model discloses a far-infrared (infrared) gas merging type burner which is suitable for burning coal gas and liquefied gas. The utility model is composed of a secondary air spoiler and a gas torch firing chamber which is made of refractory materials, wherein, the spoiler is provided with a blade which guides the flow direction of air, the blade is arranged on a secondary air inlet at the center of the torch firing chamber, and the inner wall of the torch firing chamber is provided with a plurality of rows of inclined holes. As a result, the gas and secondary air swirls in the same direction, and thorough mixed burning is obtained. The refractory materials contain components which radiate far infrared or are coated with high-temperature far infrared paint, and far infrared is used for heating, and therefore, objects are evenly heated, heating is fast, and energy is saved. The utility model has the advantages of complete burning, high furnace temperature, high thermal efficiency, and simple structure.

Description

Far-infrared gas burner

The utility model is a kind of combustion gas far infrared (infrared) interflow formula burner that is applicable to burning coal gas or liquefied gas.

The cooking stove of present commercially available burning coal gas or liquefied gas, single flow combustion cup technology is arranged, more advanced is spiral-flow type combustion cup technology, its flame temperature height, flame core height, firepower are violent, this is its feature, but because auxiliary air is vertically to rise liter, it is bigger to rise impulse force, cause some combustion gas can not with the abundant mixed combustion of air, influence efficiency of combustion.Secondly the bottom of a pan is more much lower than flame core, and it makes combustion gas change direction rapidly, outwards disperses, though certain flow-disturbing effect can be played in the bottom of a pan, still has the part combustion gas fully to burn and emptying not only reduces efficiency of combustion, and contaminated environment.In addition, combustion cup is to be made by metal sheet, temperature height in the cup, and have the eddy flow combustion gas to impact, and being easy to ablate, oxidation, regression are so service life is short.This cooking stove does not have far infrared radiation, and the efficiency of heating surface is undesirable.

The purpose of this utility model provides a kind of employing far infrared (infrared) radiation heating, long service life, the interflow formula burner of combustion gas and the equidirectional eddy flow of auxiliary air.

The utility model is achieved in that combustion gas far infrared (infrared) interflow formula burner constitutes by the auxiliary air flow spoiler with by the combustion gas torch firing chamber that refractory material is made, flow spoiler is placed in the auxiliary air import of torch firing chamber central authorities, it has guiding three of air flow or three with blade, the inwall in combustion gas torch firing chamber circumferentially has two rows or two and arranges with the spray-hole that tilts, make the equidirectional eddy flow of combustion gas and auxiliary air, its another kind of structural shape is the periphery composition burner that flow spoiler is placed in single flow combustion gas torch firing chamber.

This burner is owing to adopt the refractory material that can produce far infrared (infrared) to make, its thermal-arrest radiation, far infrared (infrared) radiation, heat conducting mode of heating are in one, improve the efficiency of heating surface greatly, has obvious energy-saving effect (about 15%), and anti-ablation, not regression, long service life.Owing to adopted auxiliary air flow-disturbing technology, auxiliary air and contacts fuel gas time are increased, reach the purpose of abundant mixed combustion, efficiency of combustion improves, and reduces environmental pollution.This burner structure is simple, makes easily, and is with low cost, is easy to promote.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is the structure chart of combustion gas far infrared (infrared) interflow formula burner

Fig. 2 is the A-A view of this burner

Fig. 3 is arc spoiler construction figure

Fig. 4 is broken line shape spoiler construction figure

Fig. 5 is arc surfaced torch firing cavity configuration figure

Fig. 6 is stepped torch firing cavity configuration figure

Fig. 7 is cylindric torch firing cavity configuration figure

Fig. 8 is the burner structure figure of flow spoiler in periphery, torch firing chamber

Fig. 9 is the A-A view of said burner

With reference to Fig. 1, this burner constitutes by auxiliary air flow spoiler 1 with by the combustion gas torch firing chamber 2 that refractory material is made, flow spoiler 1 is placed in the 2 central auxiliary air imports of combustion gas torch firing chamber, it is down annulus, go up to plectane or have the aperture plectane, have guiding three of air flow or three up and down with blade 3, its blade 3 is plate shaped, by certain angle uniform (showing) as Fig. 2, also can adopt arc shaped blade (showing) or broken line shape blade (showing) as Fig. 4 as Fig. 3, its arranged direction is clockwise, also can be counterclockwise, but the necessary equidirectional eddy flow of auxiliary air and combustion gas prolongs burning time, impels burning fully.Flow spoiler 1 can be designed to leave standstill and rotate two kinds of patterns, rotation promptly be that its blade can be carried the air that has changed direction by rotating as fan blade.The outer wall in combustion gas torch firing chamber 2 is cylindrical, there is the auxiliary air import in central authorities, its inwall can be made frustum (as Fig. 1) and also can make arc surfaced 5(such as Fig. 5 and show) or stepped 6(such as Fig. 6 show), or they show with cylindric shape 7(such as Fig. 7 of combining respectively), circumferentially have two rows or two rows are illustrated in figure 1 as 4 rounds with the spray-hole 4(that tilts at inwall), the level inclination α in this hole is 0 °≤α≤30 °; Its circumferential tangent line angle β is 0 °＜β＜90 °, and flame is formed slightly to the eddy flow that presses down, and impels combustion gas in burner internal combustion time lengthening, reaches the purpose of abundant mixed combustion.Owing to settled flow spoiler 1, make the big portion of auxiliary air in the height of torch firing chamber, change direction, initiatively with the combustion gas mixing after-combustion, the flame core of its formation is low, sufficient combustion.Flow spoiler 1 and torch firing chamber 2 adopt the refractory material that contains energy radiation far infrared composition with certain intensity to make, as fire clay (AL2O3＞26%, 1600 ℃ of refractoriness), high alumina matter porcelain (AL2O3＞85%, refractoriness＞1800 ℃), corundum porcelain (AL2O3＞99%, 1800 ℃ of refractoriness) is for platinum porcelain (AL2O3 ≮ 99%, 1800 ℃ of refractoriness) etc., they all are not afraid of burning, and so not regression is long service life.Contained AL2O3 composition has certain infrared ray conversion ratio in the material, and itself is energy radiation far infrared (infrared) just, to improve the efficiency of heating surface and energy-conservation.Perhaps make as containing zirconic refractory material.Also can coat the high temperature far ultrared paint at the counter-fire face of refractory material, to strengthen far infrared (infrared) radiation, at high temperature, the burner blackness rises to 0.98 by original 0.4-0.45, and the heat that body surface is absorbed rolls up, and coating itself at high temperature radiance reach 97%, according to the kirchhoff fourth-power law, the body surface thermal radiation capability is directly proportional with the biquadratic of its absolute temperature, thereby the burner temperature is significantly improved, and reaches purpose of energy saving.Because coating gives off the extremely strong far infrared wave of penetration capacity, makes heated object thermally equivalent, can shorten heat time heating time, the thermal conductivity factor of coating own is low simultaneously, can also reduce the radiation loss of burner, energy savings.Burner can also be made with the metal material that the surface scribbles the high temperature far ultrared paint, can reach above-mentioned effect equally.Gas burner to single flow, then adopt another kind of structural shape, be about to the periphery composition burner that flow spoiler 1 is placed in single flow combustion gas torch firing chamber 2, this flow spoiler 1 can be made frustum, also can make arc surfaced 5 stepped 6 or cylindric and between them in conjunction with shape 7, have inclined hole on the wall, its α ₁Be 0 °＜α ₁＜90 °, its circumferential tangent line angle β 1 is 1＜180 ° of 0 °＜β, also can not perforate, the position of flow spoiler 1 is a little more than combustion gas torch firing chamber 2, because the effect of flow spoiler 1, just there has been constraint in the flame stream and the temperature field of parallel flow burner, divergence reduces greatly, and temperature significantly improves in the burner, and far infrared wave gathers radiation in addition, the thermal efficiency is improved, kept the original advantage of parallel flow burner simultaneously.Because above factor, it is abundant that this burner has fuel gas buring, the furnace temperature height, and thermal efficiency height, heating is fast, and is energy-conservation, simple in structure, makes the characteristics of being easy to.

Claims

1, a kind of combustion gas far infrared (infrared) interflow formula burner that is applicable to burning coal gas and liquefied gas, it is characterized in that it constitutes by auxiliary air flow spoiler (1) with by the combustion gas torch firing chamber (2) that refractory material is made, flow spoiler (1) is placed in the central auxiliary air import in torch firing chamber (2); It has guiding three of air flow or three with blade (3); The inwall in combustion gas torch firing chamber (2) circumferentially has two rows or two and arranges with the spray-hole that tilts (4), the equidirectional eddy flow of combustion gas and auxiliary air, or flow spoiler (1) is placed in the periphery composition burner in single flow combustion gas torch firing chamber (2).

2, burner according to claim 1, it is characterized in that under the flow spoiler (1) being annulus, upward for plectane or have the aperture plectane, is blade between up and down, its blade (3) adopts plate shaped or arc or broken line shape, and its arranged direction is clockwise or counterclockwise.

3, burner according to claim 1 is characterized in that flow spoiler (1) can be designed to leave standstill or rotate two kinds of patterns.

4, burner according to claim 1, the outer wall that it is characterized in that combustion gas torch firing chamber (2) is cylindrical, there is the auxiliary air import in central authorities, inwall can make frustum or arc surfaced (5) or stepped (6) or cylindric with they between combine shape (7).

5, burner according to claim 1, the level inclination α that it is characterized in that tilting spray-hole (4) are 0 °≤α≤30 °, and circumferentially angle of contingence β is 0 °＜β＜90 °

6, burner according to claim 1, it is characterized in that flow spoiler (1) and torch firing chamber (2) adopt contain can radiation far infrared composition refractory material or the surface metal material that scribbles the refractory material of high temperature red coating far away or scribble the high temperature far ultrared paint make.

7,, it is characterized in that refractory material can adopt fire clay (AL2O3＞26%, 1600 ℃ of refractoriness) or high alumina matter porcelain (AL2O3＞85%, refractoriness＞1800 ℃) or corundum porcelain according to claim 1 or 6 described burners

(AL2O3＞99%, 1800 ℃ of refractoriness) or for platinum porcelain (AL2O3 ≮ 99%, 1800 ℃ of refractoriness).

8, burner according to claim 1, it is characterized in that the peripheral flow spoiler (1) in single flow combustion gas torch firing chamber (2) can make frustum or arc surfaced (5) or stepped (6) or cylindric and between them in conjunction with shape (7), have inclined hole on the wall, its α is 0 °＜α＜90 °, and its β 1 is 0 °＜β＜180 °.