CN216346255U

CN216346255U - Mixing device for ultralow-nitrogen-emission combustor

Info

Publication number: CN216346255U
Application number: CN202122641434.8U
Authority: CN
Inventors: 陈宝明; 杨苏莉; 贺玉秀; 许萌萌; 杨锐刚
Original assignee: Changzhou Jingjie Environmental Protection Technology Co ltd
Current assignee: Changzhou Jingjie Environmental Protection Technology Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-19
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses a mixing device for an ultra-low nitrogen emission burner, which comprises an outer shell, wherein the inner wall of the outer shell is fixedly connected with an inner shell, an interlayer is arranged between the inner shell and the outer shell, the inner wall of the outer shell is fixedly connected with a central pipe, the cylindrical outer surface of the central pipe is fixedly connected with a plurality of groups of second perforated plates, the second perforated plates are communicated with the central pipe, a plurality of groups of through holes are arranged on the second perforated plates, four groups of first perforated plates are fixedly connected between the inner shell and the central pipe, and the four groups of first perforated plates are communicated with the interlayer. In the utility model, the combustion improver is added from the first air inlet, the fuel gas is introduced from the second air inlet, the combustion improver enters the first orifice plate through the interlayer and enters the inner shell from the orifice on the first orifice plate, the fuel gas enters the second orifice plate through the interlayer and enters the inner shell from the second orifice plate to be mixed with the combustion improver, and the mixing degree of the combustion improver and the fuel gas is improved.

Description

Mixing device for ultralow-nitrogen-emission combustor

Technical Field

The utility model relates to the field of burners, in particular to a mixing device for an ultra-low nitrogen emission burner.

Background

The burner is a general term for a device for ejecting fuel and air in a certain manner to perform mixed combustion. The burners are classified into industrial burners, civil burners and special burners according to types and application fields. The fuel gas is made of corrosion-resistant and high-temperature-resistant materials such as stainless steel or metal titanium, but the phenomenon of insufficient combustion can occur when single fuel gas is combusted, so that a combustion improver is added to be matched with the fuel gas for combustion.

The existing mixing device for the burner has certain disadvantages when in use, the existing mixing device for the burner simply leads combustion improver and fuel gas together, the combustion improver and the fuel gas are not fully mixed, and the fuel gas is incomplete or generates harmful gas during combustion, so that the nitrogen emission is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a mixing device for an ultra-low nitrogen emission combustor.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an ultra-low nitrogen discharges mixing arrangement for combustor, includes the shell, states the inner wall fixedly connected with inner shell of shell, be provided with the intermediate layer between inner shell and the shell, the inner wall fixedly connected with center tube of shell, the cylinder surface fixedly connected with multiunit second orifice plate of center tube, and the second orifice plate communicates with each other with the center tube, be provided with the multiunit through-hole on the second orifice plate, four first orifice plates of group of fixedly connected with between inner shell and the center tube, and four first orifice plates of group communicate with each other with the intermediate layer, every group be provided with the multiunit orifice on the first orifice plate.

As a further description of the above technical solution:

the inner wall fixedly connected with baffle of inner shell, be provided with eight groups of ventholes on the baffle.

As a further description of the above technical solution:

the inner wall one side fixedly connected with two sets of support frames of inner shell, fixedly connected with motor between two sets of support frames, the one end extension of motor is provided with the motor shaft, the cylinder surface fixedly connected with flabellum of motor shaft.

As a further description of the above technical solution:

the right side of shell fixedly connected with second solenoid valve, one side fixedly connected with second air inlet of second solenoid valve, and center tube, second solenoid valve, second air inlet communicate with each other.

As a further description of the above technical solution:

the outer surface of the cylinder of the shell is fixedly connected with a first electromagnetic valve, one side of the first electromagnetic valve is fixedly connected with a first air inlet, and the first air inlet, the first electromagnetic valve and the interlayer are communicated.

As a further description of the above technical solution:

one side of the shell is fixedly connected with a third electromagnetic valve, one side of the third electromagnetic valve is fixedly connected with an air outlet pipe, one side of the third electromagnetic valve is fixedly connected with a connecting pipe, and the air outlet pipe, the third electromagnetic valve, the connecting pipe and the interlayer are communicated.

The utility model has the following beneficial effects:

1. add the combustion improver from first air inlet, let in the gas from the second air inlet, the combustion improver gets into first orifice plate through the intermediate layer, and inside the small opening from first orifice plate got into the inner shell, the gas got into second orifice plate through the intermediate layer, and inside getting into the inner shell from passing through on the second orifice plate, mixed with the combustion improver, promoted the degree of mixing of combustion improver and gas.

2. According to the utility model, the fan blades can be driven to rotate through the motor shaft by the arranged motor, and the mixed gas of the fuel gas and the combustion improver which come out from the eight groups of air outlets is mixed again, so that the fuel gas and the combustion improver are mixed more fully, the fuel gas can be combusted more fully, and the nitrogen emission is reduced.

Drawings

FIG. 1 is a front sectional view of a mixing apparatus for an ultra-low nitrogen emissions combustor in accordance with the present invention;

FIG. 2 is a right sectional view of a mixing device for an ultra-low nitrogen emissions burner in accordance with the present invention;

fig. 3 is a perspective view of a mixing device for an ultra-low nitrogen emission burner according to the present invention.

Illustration of the drawings:

1. an inner shell; 2. a housing; 3. an interlayer; 4. a first air inlet; 5. a first solenoid valve; 6. a second solenoid valve; 7. a second air inlet; 8. a first orifice plate; 9. a central tube; 10. an air outlet; 11. a fan blade; 12. a support frame; 13. a motor; 14. a third electromagnetic valve; 15. an air outlet pipe; 16. a partition plate; 17. a second orifice plate; 18. a motor shaft; 19. and (4) connecting the pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a mixing device for an ultra-low nitrogen emission burner comprises an outer shell 2, wherein the inner wall of the outer shell 2 is fixedly connected with an inner shell 1, an interlayer 3 is arranged between the inner shell 1 and the outer shell 2, the inner wall of the outer shell 2 is fixedly connected with a central tube 9, the cylindrical outer surface of the central tube 9 is fixedly connected with a plurality of groups of second perforated plates 17, the second perforated plates 17 are communicated with the central tube 9, a plurality of groups of through holes are arranged on the second perforated plates 17, four groups of first perforated plates 8 are fixedly connected between the inner shell 1 and the central tube 9, the four groups of first perforated plates 8 are communicated with the interlayer 3, a plurality of groups of perforated plates 8 are arranged on each group of first perforated plates 8, a second electromagnetic valve 6 is fixedly connected to the right side of the outer shell 2, a second air inlet 7 is fixedly connected to one side of the second electromagnetic valve 6, the central tube 9, the second electromagnetic valve 6 and the second air inlet 7 are communicated, and a first electromagnetic valve 5 is fixedly connected to the cylindrical outer surface of the outer shell 2, first air inlet 4 of one side fixedly connected with of first solenoid valve 5, and first air inlet 4, first solenoid valve 5, intermediate layer 3 communicates with each other, add the combustion improver from first air inlet 4, let in the gas from second air inlet 7, the combustion improver gets into first orifice plate 8 through intermediate layer 3, leak hole from on the first orifice plate 8 gets into inside inner shell 1, the gas gets into second orifice plate 17 through intermediate layer 3, it is inside to get into inner shell 1 through getting on the second orifice plate 17, mix with the combustion improver, promote the degree of mixing of combustion improver and gas.

Inner wall fixedly connected with baffle 16 of inner shell 1, be provided with eight air outlet 10 of group on the baffle 16, two sets of support frames 12 of inner wall one side fixedly connected with of inner shell 1, fixedly connected with motor 13 between two sets of support frames 12, the one end extension of motor 13 is provided with motor shaft 18, the cylinder outer fixed surface of motor shaft 18 is connected with flabellum 11, motor 13, can drive flabellum 11 through motor shaft 18 and rotate, mix the gas that comes out from eight air outlet 10 of group and the mist of combustion improver once more, make the gas more abundant with the mixture of combustion improver, make the gas can be more abundant in the burning, reduce nitrogen emission.

One side of the shell 2 is fixedly connected with a third electromagnetic valve 14, one side of the third electromagnetic valve 14 is fixedly connected with an air outlet pipe 15, one side of the third electromagnetic valve 14 is fixedly connected with a connecting pipe 19, and the air outlet pipe 15, the third electromagnetic valve 14, the connecting pipe 19 and the interlayer 3 are communicated.

The working principle is as follows: the device is when using, open first solenoid valve 5, second solenoid valve 6 and third solenoid valve 14, starter motor 13, add the combustion improver from first air inlet 4, let in the gas from second air inlet 7, the combustion improver gets into first orifice plate 8 through intermediate layer 3, leak from on the first orifice plate 8 gets into inside inner shell 1, the gas gets into second orifice plate 17 through intermediate layer 3, pass through on the second orifice plate 17 and get into inside inner shell 1, mix with the combustion improver, mist discharges from venthole 10, motor 13 drives flabellum 11 through motor shaft 18 simultaneously and rotates, mix the mist of gas and combustion improver that comes out from eight groups of ventholes 10 once more, make the mixture of gas and combustion improver more abundant, gas that mixes at last is discharged from outlet duct 15, make the gas can be with the sufficiency when burning, thereby reduce nitrogen and discharge.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A mixing arrangement for an ultra low nitrogen emission burner, comprising a housing (2), characterized in that: the inner wall fixedly connected with inner shell (1) of shell (2), be provided with intermediate layer (3) between inner shell (1) and shell (2), the inner wall fixedly connected with center tube (9) of shell (2), the cylinder outer surface fixedly connected with multiunit second orifice plate (17) of center tube (9), and second orifice plate (17) communicate with each other with center tube (9), be provided with the multiunit through-hole on second orifice plate (17), four first orifice plates (8) of fixedly connected with between inner shell (1) and center tube (9), and four first orifice plates (8) of group communicate with each other with intermediate layer (3), every group be provided with the multiunit orifice hole on first orifice plate (8).

2. The mixing device for an ultra-low nitrogen emission burner as claimed in claim 1, wherein: the inner wall of the inner shell (1) is fixedly connected with a partition plate (16), and eight groups of air outlet holes (10) are formed in the partition plate (16).

3. The mixing device for an ultra-low nitrogen emission burner as claimed in claim 1, wherein: the fan blade support is characterized in that two groups of support frames (12) are fixedly connected to one side of the inner wall of the inner shell (1), a motor (13) is fixedly connected between the two groups of support frames (12), a motor shaft (18) is arranged at one end of the motor (13) in an extending mode, and fan blades (11) are fixedly connected to the outer surface of a cylinder of the motor shaft (18).

4. The mixing device for an ultra-low nitrogen emission burner as claimed in claim 1, wherein: the right side fixedly connected with second solenoid valve (6) of shell (2), one side fixedly connected with second air inlet (7) of second solenoid valve (6), and center tube (9), second solenoid valve (6), second air inlet (7) communicate with each other.

5. The mixing device for an ultra-low nitrogen emission burner as claimed in claim 1, wherein: the outer surface of the cylinder of the shell (2) is fixedly connected with a first electromagnetic valve (5), one side of the first electromagnetic valve (5) is fixedly connected with a first air inlet (4), and the first air inlet (4), the first electromagnetic valve (5) and the interlayer (3) are communicated.

6. The mixing device for an ultra-low nitrogen emission burner as claimed in claim 1, wherein: one side fixedly connected with third solenoid valve (14) of shell (2), one side fixedly connected with outlet duct (15) of third solenoid valve (14), one side fixedly connected with connecting pipe (19) of third solenoid valve (14), and outlet duct (15), third solenoid valve (14), connecting pipe (19), intermediate layer (3) communicate with each other.