CN217540727U

CN217540727U - Three-oil gun fuel burner

Info

Publication number: CN217540727U
Application number: CN202221497472.9U
Authority: CN
Inventors: 梅晟东; 汪中海; 刘凯
Original assignee: Wuhan Leaway Engineering Technology Co ltd
Current assignee: Wuhan Leaway Engineering Technology Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-10-04
Anticipated expiration: 2032-06-15

Abstract

The utility model relates to a boiler technical field specifically is a three oil gun fuel burner, including combustor inner tube and combustor urceolus, the combustor inner tube stretches into three air atomization oil guns, and every air atomization oil gun respectively has whirl cover two, and three air atomization oil guns that have whirl cover two are located the whirl cover one of combustor inner tube simultaneously, and three air atomization oil guns are symmetrical equilateral triangle on the combustor panel and arrange, and wherein the intermediate position is provided with the fire and examines. This technical scheme adopts neotype whirl cover arrangement mode simultaneously through arranging many air atomization oil guns on single oil burner for single air atomization oil gun carries out the whirl burning, and the flame stroke shortens, has strengthened the combustion effect. Meanwhile, the three air atomization oil guns rotate and mix integrally in the cyclone cover I, so that the flame front of each air atomization oil gun is disturbed strongly, the integral combustion temperature is increased, and the burnout effect is ensured.

Description

Three-oil gun fuel burner

Technical Field

The utility model relates to a boiler technical field specifically is a three oil gun fuel burner.

Background

The mechanical atomization oil gun is generally used for an oil-fired boiler burner, and because the mechanical atomization oil gun has large atomization particles, the burn-out rate is low, the combustion temperature is low, a large amount of carbon black or oil stains are easily generated, and a heating surface is polluted or a chimney emits black smoke. The air atomization oil gun has good atomization performance, but because of the limitation of compressed air pressure, the load of a single oil gun is generally less than 1.5t/h, the requirement of a slightly large-sized oil boiler cannot be met, and the arrangement of multiple combustors is limited by the self structure and volume of the oil boiler and is difficult to arrange.

Along with the increasingly strict control of the country on pollutant emission, the NO of the oil burning boiler _x The problems of emission and smoke dust emission are attracting more attention, and a lot of enterprises are actively carrying out emission reduction transformation, and find out that NO is controlled in the transformation process _x After the used SCR process is operated for a period of time, the catalyst is seriously polluted by unburned oil stains to fail, so that the reconstruction fails. In the aspect of smoke dust control, the oil stain easily pollutes the electrodes to cause short circuit of electric dust removal and contaminate the cloth bag to cause bag pasting of cloth bag dust removal, thereby causing failure of dust discharge and reconstruction. In view of the above, a new combustion technology is urgently needed to ensure the burn-off rate of oil and meet the load requirement of the boiler. To this end, we propose a three-oil-gun fuel burner.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three oil gun fuel burner through arranging many air atomization oil guns on single oil burner, adopts neotype whirl cover arrangement mode simultaneously for single air atomization oil gun carries out the whirl burning, and the flame stroke shortens, has reinforceed the combustion effect.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a three oil gun fuel burner, includes combustor inner tube and combustor urceolus, the combustor inner tube stretches into there are three air atomization oil guns, and every air atomization oil gun respectively has whirl cover two, and three air atomization oil guns that have whirl cover two lie in the whirl cover one of combustor inner tube simultaneously, and three air atomization oil guns are symmetrical equilateral triangle on the combustor panel and arrange, and wherein the intermediate position is provided with the fire and examines.

Preferably, the combustor inner cylinder is communicated with a combustor air box, three oil gun sleeves are inserted into a panel of the air box, and the oil gun sleeves are connected with the air atomization oil gun through flanges or movable joints.

Preferably, the combustor outer cylinder is communicated with the combustor wind box.

Preferably, the combustor air box is connected with a combustion-supporting air channel, the combustion-supporting air channel supplies air from the tangential direction of the combustor air box, and a combustion-supporting air door is arranged on the combustion-supporting air channel.

Preferably, an ignition oil gun and an ignition gun for starting ignition of the burner are also independently arranged on the burner.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up many air atomization oil guns on traditional oil burner, realize that oil burner mechanical atomization mode changes to the fundamental of air atomization mode, the high-power oil burner who uses on the existing market is restricted in the restriction of single air atomization oil gun load, adopts mechanical atomization mode usually, and the atomization effect is poor, and the burn-off rate is low. The utility model discloses an adopt many air atomization oil guns, can improve the burn-off rate of oil burning under the condition that satisfies the high load requirement, practice thrift the fuel, prevent to produce materials such as black cigarette, greasy dirt, carbon black because of the burning is insufficient, reform transform for boiler SCR denitration and provide the condition (can prevent that the greasy dirt from polluting the denitration catalyst).

2. The utility model discloses a triangular arrangement and a plurality of steady combustion cover design mode to three air atomization oil guns have realized that the flame between each oil gun is complementary, have reinforceed the combustion temperature of flame, combustion temperature and combustion stability when having improved the low-load.

3. The utility model discloses a control mode to the oil system optimizes, and its oil feed mode of the heavy load fuel burner on the existing market is cooperation mechanical atomization oil gun, adopts oil return control load usually, and the oil feed volume of oil return control can lead to the minimum load of combustor more than 30%, the utility model discloses change traditional fuel burner's mechanical atomization oil gun into air atomization oil gun, and then change oil return control mode into oil feed control mode, fuel burner oil return regulation load's mode changes the oil feed into and adjusts, has not had the restriction of minimum oil return volume, has realized fuel burner's wide load regulation nature, opens the stop control means to the peculiar start-stop of three fuel burner configuration simultaneously, has prevented deflagration's emergence.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of a single air atomizing oil gun of the present invention;

fig. 3 is a diagram of the burner panel of the present invention.

In the figure: 1. a first air atomizing oil gun; 2. a second air atomizing oil gun; 3. a third air atomizing oil gun; 4. fire detection; 5. a combustor inner barrel; 6. a first stable combustion cover; 7. a second stable combustion cover; 8. a burner outer barrel; 9. a burner windbox; 10. a combustion supporting air door; 11. a combustion-supporting air duct; 12. an ignition oil gun; 13. an ignition gun; 14. a wind regulator; 15. an oil gun sleeve; 16. a flange.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figure 1, the three-oil gun fuel burner mainly comprises a first air atomization oil gun 1, a second air atomization oil gun 2 and a third air atomization oil gun 3, wherein the three oil guns are arranged on a burner in a triangular mode, and when the burner works, flame frontal surfaces of the three oil guns are mutually superposed, so that the combustion temperature and the flame fullness of a hearth are enhanced, and the burnout rate is improved. Three second combustion stabilizing covers 7 are respectively arranged on the three oil guns, and the three second combustion stabilizing covers 7 are simultaneously positioned on a first large combustion stabilizing cover 6 on the combustor inner cylinder 5.

The second stable combustion cover 7 can ensure that each oil gun forms own swirl flame, reduce the length of the flame, improve the saturation of the flame and strengthen the mixing efficiency of air and fuel; the setting of whirl cover one can integrate the flame whirl of three oil guns again for the whole flame length of combustor reduces, and the mixing efficiency of flame and the combustion-supporting wind of combustor inner tube 5 promotes by a wide margin, has improved the intensity of burning.

As shown in fig. 1, the main combustion air of the burner enters the burner air box 9 through the combustion air duct 11 and the combustion air adjusting door, and the combustion air coming out of the burner air box 9 enters the burner inner cylinder 5 and the burner outer cylinder 8 respectively.

As shown in fig. 1 and 3, the flame detector 4 of the burner is arranged at the center of the burner, which can effectively prevent the flame detector 4 from instantaneously losing flames due to the interference of the purging and atomizing air flow on the flames of the ignition oil gun 12 in the process that the oil gun starts purging by turns.

As shown in figure 2, a single air atomizing oil gun of the combustor is fixed by adopting a flange 16 sleeve structure, a second combustion stabilizing cover 7 is arranged on the sleeve, the flange 16 and the oil gun sleeve 15 can facilitate daily inspection and maintenance of the oil gun and can prevent the phenomenon of sleeve leakage and smoke generation caused by positive pressure of a hearth, and a movable clamping sleeve joint or a quick joint can also be adopted for fixing in the practical embodiment.

As shown in fig. 3, an ignition oil gun 12 and an ignition gun 13, and a regulator 14 are provided on the burner. When the boiler is started, the ignition oil gun 12 is ignited through the ignition gun 13, after the fire is detected by the fire detector 4, the ignition gun 13 is withdrawn, the boiler enters an ignition state, then three air atomization oil guns are sequentially started, the three air atomization oil guns sequentially complete the operations of opening the purge valve, opening the atomization valve, opening the oil inlet valve and closing the purge valve, then the oil inlet adjusting valve can be opened to start carrying load, the boiler enters a normal combustion state, and due to the adoption of an oil inlet adjusting mode, the lowest load of the oil burner is irrelevant to a return pipeline and only relevant to the adjusting range of the adjusting valve, and the lowest load can be as low as 10% for stable combustion; when the engine is shut down, the oil inlet regulating valve is gradually closed, and then the three air atomizing oil guns are closed in sequence, so that the deflagration phenomenon can be effectively avoided.

This technical scheme is through reforming transform traditional mechanical atomization oil burner into air atomization oil rifle, and it is not high to have solved mechanical atomization burner combustion temperature, and the burning is not abundant, and the effect of burning out is poor, easily produces carbon black, greasy dirt, and the chimney emits black cigarette scheduling problem. Meanwhile, the air atomization oil gun is limited in application because the load of the air atomization oil gun is not too large due to the defects of the structure of the air atomization oil gun. Through arranging a plurality of air atomization oil guns on single oil burner, adopt neotype whirl cover arrangement mode simultaneously for single air atomization oil gun carries out the whirl burning, and the flame stroke shortens, has strengthened the combustion effect. Meanwhile, the three air atomization oil guns rotate and mix integrally in the first cyclone cover, so that the flame front of each air atomization oil gun is strongly disturbed, the integral combustion temperature is increased, and the burnout effect is ensured. The problem that the load requirement of a large-capacity oil-fired boiler cannot be met due to low load of a single air atomizing oil gun is solved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a three oil guns fuel burner, includes combustor inner tube (5) and combustor urceolus (8), its characterized in that: the burner inner cylinder (5) stretches into three air atomization oil guns, each air atomization oil gun is provided with a second cyclone cover, the three air atomization oil guns with the second cyclone covers are simultaneously positioned in the first cyclone cover of the burner inner cylinder (5), the three air atomization oil guns are symmetrically arranged in an equilateral triangle on a burner panel, and the fire detector (4) is arranged in the middle position of the three air atomization oil guns.

2. The three-gun fuel burner of claim 1, wherein: the burner inner barrel (5) is communicated with a burner air box (9), three oil gun sleeves (15) are inserted into a panel of the air box, and the oil gun sleeves (15) are connected with an air atomizing oil gun by flanges (16) or movable joints.

3. A three-oil gun fuel burner as in claim 2, wherein: the burner outer cylinder (8) is communicated with a burner air box (9).

4. A three-oil gun fuel burner as in claim 2, wherein: the combustor air box (9) is connected with a combustion-supporting air channel (11), the combustion-supporting air channel (11) enters air from the tangential direction of the combustor air box (9), and a combustion-supporting air door (10) is arranged on the combustion-supporting air channel (11).

5. The three-gun fuel burner of claim 1, wherein: and an ignition oil gun (12) and an ignition gun (13) for starting and igniting the burner are also independently arranged on the burner.