CN201787576U

CN201787576U - Coal gas burner capable of improving combustion efficiency

Info

Publication number: CN201787576U
Application number: CN2010202646148U
Authority: CN
Inventors: 窦建辉; 张亚军; 常彦青; 张洪春; 张金伟; 李张良; 徐亚滨
Original assignee: Hebei Iron And Steel Co Ltd Handan Branch
Current assignee: Hebei Iron And Steel Co Ltd Handan Branch
Priority date: 2010-07-21
Filing date: 2010-07-21
Publication date: 2011-04-06
Anticipated expiration: 2020-07-21

Abstract

The utility model discloses a coal gas burner capable of improving the combustion efficiency, and pertains to the technical field of coal gas equipment. The coal gas burner is used for increasing the flame temperature of a heating furnace, enhancing the heating efficiency and improving the heating quality. The technical scheme is as follows: the coal gas burner comprises a burner shell, an air inlet pipe, a coal gas inlet pipe, an air spray pipe, a coal gas clapboard and multi-flow coal gas pipes, wherein the coal gas clapboard divides an inner chamber of the burner into two parts, the coal gas inlet pipe and the air inlet pipe are respectively positioned at two sides of the coal gas clapboard, the air inlet pipe is communicated with an air spray nozzle, a plurality of multi-flow coal gas pipes are distributed in the cavity of the air spray pipe uniformly and circularly in parallel, one ends of the multi-flow coal gas pipes are connected with the coal gas clapboard by welding, and the other ends of the multi-flow coal gas pipes are positioned at the outlet of the air spray pipe and are fixed by support ribs, and spiral rotating plates are also arranged in the multi-flow coal gas pipes. The coal gas burner is additionally provided with the coal gas clapboard, the multi-flow coal gas pipes and the rotating plates, thus being capable of obtaining the higher flame temperature, enhancing the combustion efficiency, improving the heating quality, reducing the consumption, and enhancing the using safety.

Description

A kind of coal gas burner that can improve efficiency of combustion

Technical field

The present invention relates to a kind of burner of gas-fired equipment, belong to the gas-fired equipment technical field.

Technical background

Burner is a kind of combustion apparatus that heating furnace uses, and the coal gas burner kind is more at present, and comparatively commonly transfers flame burner nozzle and heat-accumulating burner, control accuracy height, but its investment cost height, and old furnace modification change amount is bigger, is difficult to realize, therefore only is suitable for newly-built input.For common type common coal gas burner early, its flame temperature is low, and flame is concentrated, and causes local temperature higher, and combustion thermal efficiency is poor, especially to double material heating furnace, cause the medium temperature height long the liquidating of stove cross direction flame, the both sides temperature is low, and single steel billet is formed a side temperature height, one side temperature is low, and heating quality is poor.Under the current background of advocating energy-saving and emission-reduction energetically, be necessary to improve nozzle structure, to improve efficiency of combustion, energy savings.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of flame temperature that can improve heating furnace, optimize the length of flame and fired state, the raising efficiency of heating surface, improve the coal gas burner of heating quality.

The technical scheme that solves the problems of the technologies described above is:

A kind of coal gas burner that can improve efficiency of combustion, it comprises the burner shell, the air inlet pipe, the coal gas inlet pipe, air lance, the air inlet pipe is connected with air port, its improvements are, in the inner cavity chamber of burner shell, also have coal gas dividing plate and coal gas manifold tube, the periphery of coal gas dividing plate is connected with the circumferential inner wall of burner is airtight, inner cavity chamber is divided into two parts with burner, the coal gas inlet pipe is in a side of coal gas dividing plate, air inlet pipe and air lance are at the opposite side of coal gas dividing plate, a plurality of coal gas manifold tubes are distributed in the cavity of air lance along the axially parallel of air lance, uniform ring is around central distribution on cavity cross-section, and an end of coal gas manifold tube passes the coal gas dividing plate, and is welded to connect with the coal gas dividing plate, the other end of coal gas manifold tube is positioned at the exit of air lance, is fixed by brace rod.

The above-mentioned coal gas burner that can improve efficiency of combustion is equipped with revolving fragment in each coal gas manifold tube inside, and revolving fragment is continuous flight, and length and coal gas manifold tube are isometric, and two ends and coal gas multithread tube wall are welded to connect.

The above-mentioned coal gas burner that can improve efficiency of combustion is welded with fixedly gusset between the coal gas manifold tube.

The beneficial effects of the utility model are:

1, in the burner internal structure, gas passage adopts the coal gas manifold tube, increased the spout flow velocity, and the gas exit of coal gas manifold tube is arranged in the exit of air lance, make the exit combustion gas and the air of burner can produce strong rapidly and blending uniformly, obtain higher flame temperature, improve efficiency of combustion.

2, externally mixed combustion of coal gas and air, the design of coal gas manifold tube has improved the adaptability to combustion gas and air pressure variations, and ability and adjustable range are bigger, have reduced the possibility of tempering, have improved efficiency of combustion and safe handling property.

3, set up revolving fragment in the coal gas manifold tube, can adjust the length of flame by the different pitch of revolving fragment, the length of flame just in time is in the middle of the stove, fire box temperature is even, and it is even to add temperature for steel billet, is beneficial to control.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the structural representation of revolving fragment of the present utility model;

Fig. 4 is the side view of Fig. 3.

Mark is as follows among the figure: burner shell 1, air inlet pipe 2, coal gas inlet pipe 3, air lance 4, coal gas dividing plate 5, coal gas manifold tube 6, revolving fragment 7.

The specific embodiment

Fig. 1,2 shows that the utility model is made up of burner shell 1, air inlet pipe 2, coal gas inlet pipe 3, air lance 4, coal gas dividing plate 5, coal gas manifold tube 6, revolving fragment 7.

Have coal gas dividing plate 5, coal gas dividing plate 5 that burner inner cavity chamber is divided into two parts in the inner chamber body of burner shell 1, a part is connected with coal gas inlet pipe 3, and another part is connected with air inlet pipe 2, and air lance 4 and air inlet pipe 2 are in the chamber of homonymy.Burner shell 1, air inlet pipe 2 can determine according to the actual installation size with coal gas inlet pipe 3, guarantees that exterior line remains stationary.

Coal gas manifold tube 6 is a plurality of, is the long tube of being made by metal, is arranged in the cavity of air lance 4 along the axially parallel of air lance 4, and from the cross section of the cavity of air lance 4, a plurality of coal gas manifold tube 6 uniform ring are around the center of cavity cross-section.One end and the coal gas dividing plate 5 of coal gas manifold tube 6 are welded to connect, and coal gas can be by the exit ejection of coal gas manifold tube 6 from air lance 4 from the chamber of coal gas inlet pipe 3, and the welding gusset prevents the changing of the relative positions between the coal gas manifold tube 6.

Fig. 3,4 shows that revolving fragment is continuous flight, is made by straight carbon steel, with the length control anglec of rotation of pitch.Pitch is big, and then the anglec of rotation is little, and flame is long; Pitch is little, and then the anglec of rotation is big, and flame is short, mixes more abundant.In use, coal gas produces strong rotation along revolving fragment, has strengthened and Air mixing, and combustion efficiency is better.This revolving fragment can be made into the spare part of multiple different pitch, selects for use according to the needs of producing, to reach better effect.

Coal gas manifold tube of the present utility model is uniformly distributed in air port inside, and is equipped with revolving fragment in each coal gas manifold tube.Realize enhancing spout flow velocity by setting up the coal gas manifold tube, made the exit combustion gas of burner and air can produce blending strongly and uniformly rapidly, obtained higher flame temperature, improved efficiency of combustion.By selecting the revolving fragment of different pitch for use, adjust the length of flame with the different anglecs of rotation.According to the characteristics that double material is arranged, adjust the length of flame, the length of flame just in time is in the middle of the stove, and fire box temperature is even, and it is even to add temperature for steel billet, is beneficial to control.Simultaneously, the externally mixed combustion of coal gas and air has improved the adaptability to combustion gas and air pressure variations, has improved efficiency of combustion and safe handling property.

Claims

1. coal gas burner that can improve efficiency of combustion, it comprises burner shell [1], air inlet pipe [2], coal gas inlet pipe [3], air lance [4], air inlet pipe [2] is connected with air port, it is characterized in that: in the inner cavity chamber of burner shell [1], also have coal gas dividing plate [5] and coal gas manifold tube [6], the periphery of coal gas dividing plate [5] is connected with the circumferential inner wall of burner is airtight, inner cavity chamber is divided into two parts with burner, coal gas inlet pipe [3] is in a side of coal gas dividing plate [5], air inlet pipe [2] and air lance [4] are at the opposite side of coal gas dividing plate [5], a plurality of coal gas manifold tubes [6] are arranged in the cavity of air lance [4] along the axially parallel of air lance [4], uniform ring is around central distribution on cavity cross-section, one end of coal gas manifold tube [6] passes coal gas dividing plate [5], and be welded to connect in coal gas dividing plate [5], the other end of coal gas manifold tube [6] is positioned at the exit of air lance [4], is fixed by brace rod.

2. the coal gas burner that can improve efficiency of combustion according to claim 1, it is characterized in that: revolving fragment [7] is installed in each coal gas manifold tube [6] inside, revolving fragment [7] is continuous flight, and length and coal gas manifold tube [6] are isometric, and two ends and coal gas manifold tube [6] tube wall are welded to connect.

3. the coal gas burner that can improve efficiency of combustion according to claim 2 is characterized in that: be welded with fixedly gusset between coal gas manifold tube [6].