CN216521744U

CN216521744U - Horizontal flue soot blower of boiler

Info

Publication number: CN216521744U
Application number: CN202123038161.4U
Authority: CN
Inventors: 张亚锋; 张晓南; 赵二峰; 张冰依; 张博锋; 张晓雨
Original assignee: Henan Yuxin Heavy Industry Technology Co ltd
Current assignee: Henan Yuxin Heavy Industry Technology Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-13
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a soot blowing device of a horizontal flue of a boiler, which comprises the horizontal flue, wherein a shock wave generator is arranged at the top of the horizontal flue, a combustion chamber is arranged in the shock wave generator, air inlet pipes are arranged at two sides of the shock wave generator and communicated with the combustion chamber, a pulse electromagnetic valve is arranged at one end of each air inlet pipe in the combustion chamber, a spark plug is arranged at the top of the combustion chamber, a communicating pipe is arranged at the bottom of the combustion chamber, the bottom of the communicating pipe is communicated with a sleeve, guide pipes are rotatably arranged at two sides of the sleeve, a plurality of soot blowing pipes are arranged at two sides of each guide pipe, a pressurizing nozzle is arranged at the outer ends of the soot blowing pipes, and turbine blades are arranged in the ports of the guide pipes. The pulse gas is guided to each part in the flue through the guide pipe, and the guide pipe drives the soot blowing pipe to rotate for soot blowing, so that the soot blowing range is large; high-pressure pulse gas is sprayed out after the pressurization effect of the pressurization spray head, so that the strong soot blowing pressure is realized; combustible gas and air are respectively introduced into the air inlet pipes on the two sides to be combusted in the combustion chamber, so that compression waves are generated, a non-contact ash removal mode is formed, and a pipeline is not easy to corrode.

Description

Horizontal flue soot blower of boiler

Technical Field

The utility model relates to the technical field of boiler flue dust cleaning, in particular to a horizontal flue soot blower of a boiler.

Background

During the use of the boiler, the horizontal flue of the boiler usually has dust accumulation, and the accumulated dust seriously affects the heat dissipation and ventilation of the horizontal flue, so that the ash removal treatment of the horizontal flue is required to be carried out regularly so as not to affect the normal use of the boiler.

Traditional deashing mode has machinery deashing and steam to blow grey, and the great and vulnerable flue of machinery deashing noise, and steam blows grey and can lead to flue gas humidity to increase, causes deposition and jam more easily, still can make the corruption aggravation to the flue to certain one section in the flue is installed usually to traditional soot blower, along with the increase of flue distance, blows grey effect and weaker more and more, leads to blowing the ash scope limited and pressure is not enough, makes the dust clearance in the flue thoroughly inadequately.

SUMMERY OF THE UTILITY MODEL

The utility model provides a horizontal flue soot blower of a boiler, which has the advantages of large soot blowing range, strong soot blowing pressure, difficult corrosion to pipelines and the like, and solves the problems that the humidity of flue gas is increased due to steam soot blowing, soot deposition and blockage are more easily caused, the corrosion to the flue is aggravated, and the traditional soot blower is usually arranged at a certain section in the flue, the soot blowing effect is weaker and weaker along with the increase of the distance of the flue, the soot blowing range is limited, the pressure is insufficient, the dust in the flue is not thoroughly cleaned and the like.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a horizontal flue soot blower of boiler, includes horizontal flue, horizontal flue top fixed mounting has sharp wave generator, be provided with the combustion chamber in the sharp wave generator, sharp wave generator both sides fixedly connected with intake pipe, and the intake pipe runs through sharp wave generator and combustion chamber intercommunication setting, the intake pipe is provided with pulse solenoid valve in the combustion chamber one end cooperation, combustion chamber top fixed mounting has the spark plug, combustion chamber bottom intercommunication is provided with communicating pipe, communicating pipe bottom runs through horizontal flue lateral wall and sleeve intercommunication setting, the sleeve both sides are rotated and are connected and are provided with the honeycomb duct, a plurality of soot blowing pipes are installed to honeycomb duct both sides equidistance intercommunication, soot blowing pipe outer end intercommunication is provided with the pressure boost shower nozzle, fixed mounting has turbine fan blade in the sleeve one end port honeycomb duct.

As a further description of the above technical solution:

and a rolling bearing is arranged between the guide pipe and the sleeve in a matching way.

As a further description of the above technical solution:

and a pressurizing chamber is arranged in the pressurizing nozzle and communicated with the soot blowing pipe.

As a further description of the above technical solution:

the pressurizing chamber is internally provided with a pressing plate in a matching way, and the pressing plate is elastically connected with the pressurizing chamber through a spring.

As a further description of the above technical solution:

the outer end of the pressurizing nozzle is provided with a nozzle, and the nozzle is communicated with the pressurizing chamber through a through groove.

As a further description of the above technical solution:

the model of the pulse electromagnetic valve is set to be DMF-Y-25, and the model of the spark plug is set to be NKG-DENSO.

As a further description of the above technical solution:

the center of the sleeve and the center of the horizontal flue are arranged on the same straight line.

The utility model has the following beneficial effects:

1. the soot blowing device adopts the flow guide pipe, the soot blowing pipe and the turbine fan blades, pulse gas is guided to all positions in the flue through the flow guide pipe, the pulse gas blows the turbine fan blades to enable the flow guide pipe to drive the soot blowing pipe to rotate, soot blowing is carried out on one circle of the flue, and therefore the soot blowing range is large, and soot blowing is more uniform and thorough;

2. the soot blowing device adopts the shock wave generator and the pressurizing nozzle, so that high-pressure pulse gas generated in the shock wave generator enters the pressurizing nozzle through the flow guide pipe and is sprayed out after the high-pressure pulse gas passes through the pressurizing effect of the pressurizing nozzle to blow soot on the inner wall of the flue, the soot blowing pressure is high, and the soot blowing effect is improved;

3. this soot blower is owing to adopted combustion chamber, intake pipe, pulse solenoid valve, through letting in combustible gas (coal gas, natural gas, liquefied gas) and air respectively in the intake pipe of both sides, through pulse solenoid valve accuse volume back, burns in the combustion chamber, produces the compression wave, forms kinetic energy, sound energy, heat energy and carries out the deashing in to the flue, forms non-contact deashing mode, and then realizes the difficult pipeline that corrodes, makes the dust clearance more high-efficient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a front view of a horizontal flue sootblower of a boiler in accordance with the present invention;

FIG. 2 is a cross-sectional view of the sleeve of a horizontal flue sootblower of a boiler in accordance with the present invention;

FIG. 3 is a side view of the ports of the draft tube of a horizontal flue sootblower of a boiler in accordance with the present invention;

FIG. 4 is a cross-sectional view of the booster nozzle of a horizontal flue sootblower for a boiler in accordance with the present invention.

The reference numerals are explained below:

1. a horizontal flue; 2. a shock wave generator; 3. a combustion chamber; 4. an air inlet pipe; 5. a pulse electromagnetic valve; 6. a spark plug; 7. a communicating pipe; 8. a sleeve; 9. a flow guide pipe; 10. a soot blowing pipe; 11. a pressurized spray head; 12. a rolling bearing; 13. turbine blades; 14. a plenum chamber; 15. pressing a plate; 16. a spring; 17. a nozzle; 18. a through groove.

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 to 4, the present invention provides a new technical solution: a horizontal flue soot blower of a boiler comprises a horizontal flue 1, wherein a shock wave generator 2 is fixedly mounted at the top of the horizontal flue 1, a combustion chamber 3 is arranged in the shock wave generator 2, air inlet pipes 4 are fixedly connected to two sides of the shock wave generator 2 and penetrate through the shock wave generator 2 to be communicated with the combustion chamber 3, natural gas and air respectively enter the combustion chamber 3 through the air inlet pipes 4 at two sides, a pulse electromagnetic valve 5 is arranged at one end of each air inlet pipe 4 in the combustion chamber 3 in a matched mode, the quantity of the combustion gas at each time is controlled through the pulse electromagnetic valve 5, the type of the pulse electromagnetic valve 5 is set to be DMF-Y-25, a spark plug 6 is fixedly mounted at the top of the combustion chamber 3, the gas in the combustion chamber 3 is ignited through the spark plug 6, the type of the spark plug 6 is set to be NKG-DENSO, and the gas is combusted in the combustion chamber 3, generating compression waves to form kinetic energy, sound energy and heat energy to carry out ash removal on the horizontal flue 1, thereby forming a non-contact ash removal mode.

The bottom of the combustion chamber 3 is communicated with a communicating pipe 7, the bottom of the communicating pipe 7 is communicated with a sleeve 8 through the side wall of a horizontal flue 1, the center of the sleeve 8 and the center of the horizontal flue 1 are arranged on the same straight line to ensure that soot blowing is more uniform, two sides of the sleeve 8 are rotatably connected with a flow guide pipe 9, a plurality of soot blowing pipes 10 are communicated and installed at the two sides of the flow guide pipe 9 at equal intervals, compression waves generated in a shock generator 2 enter the soot blowing pipes 10 through the communicating pipe 7 and the flow guide pipe 9, the outer end of the soot blowing pipes 10 is communicated with a pressurizing nozzle 11, pulse high-pressure gas is sprayed out after the pressurizing effect of the pressurizing nozzle 11 to blow soot on the inner wall of the horizontal flue 1, a rolling bearing 12 is installed between the flow guide pipe 9 and the sleeve 8 in a matched manner to reduce the friction force of the flow guide pipe 9 rotating in the sleeve 8, and a turbine fan blade 13 is fixedly installed in a port at one end of the flow guide pipe 9 in the sleeve 8, when the pulse high-pressure gas enters the draft tube 9 from the sleeve 8, the turbine fan blades 13 are blown to rotate, so that the draft tube 9 drives the soot blowing tube 10 to rotate, and the soot blowing tube 10 blows soot in one circle of the horizontal flue 1.

The inside of the pressurizing nozzle 11 is communicated with the soot blowing pipe 10 to form a pressurizing chamber 14, a pressing plate 15 is arranged in the pressurizing chamber 14 in a matched mode, the pressing plate 15 is elastically connected with the pressurizing chamber 14 through a spring 16, a nozzle 17 is arranged at the outer end of the pressurizing nozzle 11, the nozzle 17 is communicated with the pressurizing chamber 14 through a through groove 18, gas entering the pressurizing nozzle 11 extrudes the spring 16 through the pressing plate 15, when the gas pressure is large enough, the gas enters the nozzle 17 through the through groove 18 and is sprayed out from the nozzle 17, the pressure of the sprayed gas is larger, and the soot blowing effect is better.

The working principle and the using process of the utility model are as follows: when the device is used, natural gas and air are respectively introduced into the combustion chamber 3 through the air inlet pipes 4 on two sides, the pulse electromagnetic valve 5 controls the amount of the combustion gas each time, the spark plug 6 ignites the gas in the combustion chamber 3, pulse high-pressure gas is generated in the shock wave generator 2 by combining with the pulse frequency of the pulse electromagnetic valve 5, the pulse high-pressure gas enters the sleeve 8 through the communicating pipe 7 and then enters the soot blowing pipe 10 through the honeycomb duct 9, the pulse high-pressure gas is sprayed out through the pressurization effect of the pressurization spray head 11 to blow soot on the inner wall of the horizontal flue 1, and the pulse high-pressure gas enters the honeycomb duct 9 from the sleeve 8 to blow the turbine fan blades 13 to rotate, so that the honeycomb duct 9 drives the soot blowing pipe 10 to rotate, the soot blowing pipe 10 blows one circle in the horizontal flue 1, the length of the honeycomb duct 9 can be properly increased according to the length of the horizontal flue 1, and the soot blowing range and the soot blowing effect can be increased.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a horizontal flue soot blower of boiler, includes horizontal flue (1), its characterized in that: the top of the horizontal flue (1) is fixedly provided with a shock wave generator (2), a combustion chamber (3) is arranged in the shock wave generator (2), two sides of the shock wave generator (2) are fixedly connected with an air inlet pipe (4), the air inlet pipe (4) penetrates through the shock wave generator (2) and is communicated with the combustion chamber (3), the air inlet pipe (4) is provided with a pulse electromagnetic valve (5) in the combustion chamber (3) in a matching way, the top of the combustion chamber (3) is fixedly provided with a spark plug (6), the bottom of the combustion chamber (3) is communicated with a communicating pipe (7), the bottom of the communicating pipe (7) penetrates through the side wall of the horizontal flue (1) and is communicated with a sleeve (8), two sides of the sleeve (8) are rotatably connected with a guide pipe (9), a plurality of ash blowing pipes (10) are arranged in equidistant communication way on two sides of the guide pipe (9), and the outer end of the ash blowing pipe (10) is communicated with a pressurizing nozzle (11), turbine fan blades (13) are fixedly arranged in the port of one end of the flow guide pipe (9) in the sleeve (8).

2. The horizontal flue sootblower of a boiler as claimed in claim 1, wherein: and a rolling bearing (12) is arranged between the guide pipe (9) and the sleeve (8) in a matching way.

3. The horizontal flue sootblower of a boiler as claimed in claim 2, wherein: and a pressurizing chamber (14) is arranged in the pressurizing nozzle (11) and communicated with the soot blowing pipe (10).

4. A horizontal flue sootblower of a boiler as claimed in claim 3, wherein: the pressurizing chamber (14) is internally provided with a pressure plate (15) in a matching way, and the pressure plate (15) is elastically connected with the pressurizing chamber (14) through a spring (16).

5. The horizontal flue sootblower of a boiler as claimed in claim 4, wherein: the outer end of the pressurizing nozzle (11) is provided with a nozzle (17), and the nozzle (17) is communicated with the pressurizing chamber (14) through a through groove (18).

6. The horizontal flue sootblower of a boiler as claimed in claim 5, wherein: the model of the pulse electromagnetic valve (5) is DMF-Y-25, and the model of the spark plug (6) is NKG-DENSO.

7. The horizontal flue sootblower of a boiler as claimed in claim 6, wherein: the center of the sleeve (8) and the center of the horizontal flue (1) are arranged on the same straight line.