CN203907605U

CN203907605U - Self-preheating burner

Info

Publication number: CN203907605U
Application number: CN201420248220.1U
Authority: CN
Inventors: 安跃锋; 赵项林; 李辽宁; 叶锐
Original assignee: Luoyang Yuxin Engineering Technology Co Ltd
Current assignee: LUOYANG YUXIN ENGINEERING TECHNOLOGY CO., LTD.
Priority date: 2014-05-14
Filing date: 2014-05-14
Publication date: 2014-10-29
Anticipated expiration: 2024-05-14

Abstract

The utility model relates to a self-preheating burner which comprises a smoke discharge pipe, an ejector, a coal gas preheating pipe, a T-shaped pipe, an air pipeline and a coal gas pipeline. The smoke discharge pipe is connected with a straight pipe section, positioned in the coal gas preheating pipe, of the T-shaped pipe, the ejector is of a tubular structure, one end of the ejector extends into the smoke discharge pipe while the other end of the same is connected with an air compressor, and a coal gas inlet and a coal gas outlet are arranged on the coal gas preheating pipe; one straight pipe section of the T-shaped pipe is positioned outside the air pipeline of a burning nozzle while the other straight pipe section of the same is positioned in the coal gas preheating pipe, a coal gas preheating cavity is formed between the other straight pipe section and the coal gas preheating pipe, the col gas pipeline is arranged in the air pipeline to form a burning nozzle structure, and a hot air passage in the coal gas preheating pipe is composed of multiple hot air circulating pipelines. By the self-preheating burner, temperature during coal gas burning can be increased, and preheating effect is enhanced, so that chemical reaction speed and burning efficiency during burning are improved.

Description

Self-preheating burner

Technical field

The utility model belongs to steel water bag technical field of burner, relates generally to a kind of self-preheating burner.

Background technology

At present, the steel water bag burner that steel plant are generally used mainly consists of air duct, gas piping, its structure is in circular air hose, to be inserted in the circular gas piping of another root and the air chamber, coal gas chamber (being nozzle structure) that form two sealings, and they are all connected with external pipe by flange.The steel water bag burner of this structure is when baking steel water bag, and not only efficiency of combustion is lower, and in the flue gas of discharge during burning, contains amount of heat and discharge into the atmosphere.The problem of bringing is thus: contaminated environment, wastes energy, and surrounding devices is produced to the service life that heat radiation affects equipment.In addition, the burner of this structure can reach baking process requirement for the fuel of high heating value, but for some low-calorie fuel, is difficult to reach baking process requirement, is even difficult to igniting baking.For solving low calorie fuels, do not reach the problem of heating process requirement, the measure of taking is at present: set up in addition a set of pre-heating device, coal gas and air are carried out to preheating, make it reach baking process requirement to low calorie fuels.But have the problem that increases production cost, and in environmental pollution and waste gas, the problem of utilizing of heat is not resolved.

Because the problem that above-mentioned existing burner exists, the inventor is based on being engaged in this type of product design manufacture abundant practical experience and professional knowledge for many years, and the utilization of cooperation scientific principle, positive research and innovation in addition, to founding a kind of burner of new structure, can solve the problem of existing existence, make it have more practicality.Through constantly research, design, and after repeatedly studying sample and improving, finally create the utility model having practical value.

Summary of the invention

The purpose of this utility model is that a kind of self-preheating burner is being provided, it utilizes the heat in waste gas to come preheating gas and air, and used many hot gas cycle pipelines that the area of dissipation of hot waste gas is increased, temperature while further improving gas-fired, strengthens pre-heat effect, thus chemical reaction velocity and efficiency of combustion while improving burning, saved the energy, reduce energy consumption, improved combustion gas adaptability, can adapt to the baking process requirement of fuels with different heat values.

The purpose of this utility model is to adopt following technical scheme to realize.The utility model provides a kind of self-preheating burner, comprises smoke exhaust pipe, injector, gas preheating pipe, T-shaped pipe, air duct and gas piping; Wherein, this smoke exhaust pipe is connected with the straight length that T-shaped pipe is positioned at gas preheating pipe, and this injector is tubular structure, and one end is stretched in smoke exhaust pipe, and the other end is connected with air compressor, and this gas preheating pipe is provided with gas inlet and gas exit; A straight length of this T-shaped pipe is positioned at outside the air duct of burner, another straight length be positioned at gas preheating pipe and and this gas preheating pipe between form gas preheating chamber; This gas piping is arranged on formation nozzle structure in air duct; Wherein the hot gas path in this gas preheating pipe is comprised of many hot gas cycle pipelines.

The purpose of this utility model can also be further achieved by the following technical measures.

Aforesaid self-preheating burner, wherein this smoke exhaust pipe is conical pipe.

Aforesaid self-preheating burner, wherein connecting plate with a plurality of smoking-holes of bottom welding of this T-shaped pipe.

Aforesaid self-preheating burner, wherein this gas piping is communicated with the gas exit on gas preheating pipe by bend pipe.

The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, self-preheating burner of the present utility model has following advantages and beneficial effect:

1, the hot gas path in gas preheating pipe of the present utility model is comprised of many hot gas cycle pipelines, increase the area of dissipation of hot waste gas, and mesosome is less, therefore radiation loss is few, heat exchange efficiency is high, also further improves the preheat temperature of coal gas, improves fuel availability.

2, compared to ordinary burner without preheating device and injector, self-preheating burner of the present utility model has preheater and injector, makes coal gas and air preheating temperature high, and have that area of dissipation is large, compact conformation, the feature such as easy to connect.

3, nozzle structure of the present utility model, is design improvement on the basis of other type of burner, makes the length of flame of burner large, combustion-gas flow muzzle velocity is fast, accelerated the absorption to gas-fired heat, made ladle liner upper and lower temperature difference in 20 ℃, effect is excellent.

4, the inner smoke extraction chamber of gas preheating pipe of the present utility model is adjacent with coal gas chamber, cooled coal gas can with waste gas heat generation heat exchange in smoke extraction chamber, preheating cooled coal gas, cooled coal gas is preheating to 350 ℃ of left and right, and then enter in hybrid chamber, chemical reaction velocity in the time of can greatly increasing like this burning, improves burning degree, increases the thermal efficiency.

5, self-preheating burner of the present utility model has been selected into hot smoking chamber adjacent with air chamber in smoke evacuation system, and it can not only preheating gas, and can improve the temperature of air in air chamber, and while being conducive to burn, chemical reaction carries out and improve burning degree.

6, compared to ordinary burner, be not suitable for low-calorie coal gas, and self-preheating burner of the present utility model can not only be used low-calorie coal gas, and can use general coal gas, applicability is wide.

Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of description, and for above and other object of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.

Accompanying drawing explanation

Fig. 1: be the front view of self-preheating burner of the present utility model.

Fig. 2: be the top view of self-preheating burner of the present utility model.

Fig. 3: for B in Fig. 1 to view.

[main element symbol description]

1: smoke exhaust pipe 2: injector

3: gas preheating pipe 4:T type pipe

5: gas inlet 6: gas exit

7: air duct 8: air intlet

9: gas piping 10: connecting plate

11: suction hole 12: bend pipe

The specific embodiment

For further setting forth the utility model, be to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of a kind of self-preheating burner, structure, feature and effect thereof to according to the utility model proposes, be described in detail as follows.

Consulting shown in Fig. 1 and Fig. 2, is front view and the top view of self-preheating burner of the present utility model.This self-preheating burner comprises smoke exhaust pipe 1, injector 2, gas preheating pipe 3, T-shaped pipe 4, air duct 7 and gas piping 9.

Wherein, this smoke exhaust pipe 1 is conical pipe, and it is connected by taper elbow with the straight length that T-shaped pipe 4 is positioned at gas preheating pipe 3, forms a good combustion exhaust gas balance sysmte.This injector 2 is tubular structure, and one end is stretched in smoke exhaust pipe 11, and the other end is connected with air compressor, with the negative pressure of utilizing high velocity jet air stream to cause, waste gas is discharged outside burner after burner and preheater.It should be noted that above-mentioned smoke exhaust pipe 1 is not defined as conical pipe, it is preferably reducer pipe, makes the compressed air of injection form negative pressure or draft.

This gas preheating pipe 3 is provided with gas inlet 5 and gas exit 6, and the hot gas path in gas preheating pipe 3 is comprised of many hot gas cycle pipelines, increases the area of dissipation of hot waste gas.This T-shaped pipe 4 is waste gas radiating tube, a straight length of T-shaped pipe 4 is positioned at outside the air duct 7 of burner, connecting plate 10 (as shown in Figure 3) with a plurality of smoking-holes 11 of bottom welding, form thus the chamber of three sealings, be air chamber, coal gas chamber and smoking chamber, they are all connected with external pipe by flange; Meanwhile, another straight length of T-shaped pipe 4 be positioned at gas preheating pipe 3 and and 3 of this gas preheating pipes form gas preheating chambeies, coal gas is carried out to preheating.

In addition, this gas piping 9 is arranged on the interior formation nozzle structure of air duct 7, and this air duct 7 is connected with centrifugal high pressure fan by air intlet 8, and gas piping 9 is communicated with the gas exit 6 on gas preheating pipe 3 by bend pipe 12.

By above-mentioned connecting plate 10, self-preheating burner of the present utility model is fixedly connected with roaster clad.In the course of the work, coal gas and air fed by a certain percentage in burner to burning or realize burning burner is inner.Meanwhile, this injector high velocity jet air stream forms negative pressure (draft) and waste gas is discharged by smoke exhaust pipe through burner, gas preheating pipe in smoke exhaust pipe, in the process of discharging, respectively air and coal gas is carried out to preheating.

The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.

Claims

1. a self-preheating burner, comprises smoke exhaust pipe, injector, gas preheating pipe, T-shaped pipe, air duct and gas piping; Wherein, this smoke exhaust pipe is connected with the straight length that T-shaped pipe is positioned at gas preheating pipe, and this injector is tubular structure, and one end is stretched in smoke exhaust pipe, and the other end is connected with air compressor, and this gas preheating pipe is provided with gas inlet and gas exit; A straight length of this T-shaped pipe is positioned at outside the air duct of burner, another straight length be positioned at gas preheating pipe and and this gas preheating pipe between form gas preheating chamber; This gas piping is arranged on formation nozzle structure in air duct;

It is characterized in that, wherein the hot gas path in this gas preheating pipe is comprised of many hot gas cycle pipelines.

2. self-preheating burner according to claim 1, is characterized in that, wherein this smoke exhaust pipe is conical pipe.

3. self-preheating burner according to claim 1, is characterized in that, wherein connecting plate with a plurality of smoking-holes of bottom welding of this T-shaped pipe.

4. self-preheating burner according to claim 1, is characterized in that, wherein this gas piping is communicated with the gas exit on gas preheating pipe by bend pipe.