CN220828850U - Soot blower of circulating fluidized bed - Google Patents

Abstract

The utility model discloses a circulating fluidized bed soot blower, wherein a collecting tank is communicated with a mixing tank, a pulse tank is communicated with the collecting tank, a nozzle is arranged on the pulse tank, one end of the nozzle, which is far away from the pulse tank, is arranged towards a heating surface, and the nozzle is used for releasing pressure energy towards the heating surface; the air device is communicated with the mixing tank and is used for providing air for the mixing tank; the gas device is communicated with the mixing tank and is used for providing combustible gas for the mixing tank. Through the arrangement of the mixing tank, the header tank, the pulse tank, the nozzle, the air device and the gas device, the mixed gas is ignited in the pulse tank and detonates, the combustion gas instantaneously increases the pressure energy, and the pressure energy is released suddenly from the nozzle. The generated shock wave, sound wave and high-speed airflow have the characteristics of refraction, reflection and diffraction, and can impact and shake accumulated ash on a heating surface from all directions to make the accumulated ash disintegrate and peel off, and the high-speed airflow is used for scouring and cleaning, and finally the dust is wrapped by the smoke flow.

Description

Soot blower of circulating fluidized bed

Technical Field

The utility model relates to the field of boiler soot cleaning technicians, in particular to a circulating fluidized bed soot blower.

Background

The high exhaust gas temperature of the circulating fluidized bed boiler affects the thermal efficiency of the boiler, and the too high temperature can seriously affect the safe operation of the bag-type dust collector and the desulfurization equipment. The dust accumulation of the air preheater at the tail part of the boiler is a main reason for influencing the exhaust gas temperature.

In particular, the circulating fluidized bed combustion technology has remarkable advantages in energy saving and environmental protection, but because the circulating fluidized bed combustion technology can use inferior coal, the ash deposition problem of a tail flue of a circulating fluidized bed boiler is also serious, and the ash deposition presents ash deposition characteristics different from those of a pulverized coal furnace. The ash in heated area is one of the factors affecting the safe and economic operation of the circulating-flow bed boiler, in a vertical shaft flue, the tube bundles of the superheater and the economizer are easy to accumulate ash, and fly ash deposits on the heated surface of the tube bundles to generate ash-to-ash thermal resistance, so that the heat transfer capacity of the heated surface is reduced, the problems of temperature reduction, smoke discharge temperature rise, overtemperature of the tube wall of the heated surface and the like occur, and meanwhile, in some horizontal flues, the ash accumulation is generated at the bottom of the horizontal flue, so that the resistance of smoke in the flue is increased, and the problems directly affect the normal operation of a unit and affect the efficiency of the boiler.

Disclosure of utility model

In view of the above problems, the present application provides a circulating fluidized bed soot blower to remove accumulated soot on the heating surface of a boiler, thereby reducing the exhaust gas temperature and increasing the thermal efficiency of the boiler.

In order to achieve the above object, the present application provides a circulating fluidized bed soot blower, comprising:

a gas flame device, the gas flame device comprising: the device comprises a mixing tank, a collecting tank, a pulse tank and a nozzle, wherein the collecting tank is communicated with the mixing tank, the pulse tank is communicated with the collecting tank, the nozzle is arranged on the pulse tank and is used for providing a deflagration place, one end of the nozzle, which is far away from the pulse tank, is arranged towards a heating surface, and the nozzle is used for releasing pressure energy towards the heating surface;

An air device in communication with the mixing tank and configured to provide air to the mixing tank;

and the gas device is communicated with the mixing tank and is used for providing combustible gas for the mixing tank.

In the technical solution of the embodiment of the present application, the air device includes: an air stop valve, a first air butt-clamping ball valve, an air filtering pressure reducing valve and an air solenoid valve;

The air stop valve is communicated with the first air butt clamp ball valve, the first air butt clamp ball valve is communicated with the air filtering and pressure reducing valve, the air filtering and pressure reducing valve is communicated with the air electromagnetic valve, and the air electromagnetic valve is communicated with the mixing tank.

In the technical solution of the embodiment of the present application, the air device further includes: the second air butt clamp ball valve, the air solenoid valve with second air butt clamp ball valve UNICOM, second air butt clamp ball valve with the blending tank intercommunication.

In the technical solution of the embodiment of the present application, the gas device includes: the device comprises a fuel gas stop valve, a first fuel gas butt-clamping ball valve, an acetylene pipeline electromagnetic valve, an acetylene pipeline fuel gas electromagnetic valve, a flame arrester and a fuel gas butt-clamping check valve;

the gas stop valve is communicated with the first gas butt-clamping ball valve, the first gas butt-clamping ball valve is communicated with the acetylene gas pipeline electromagnetic valve, the acetylene gas pipeline electromagnetic valve is communicated with the flame arrester, and the flame arrester is communicated with the gas butt-clamping check valve.

In the technical solution of the embodiment of the present application, the gas device further includes: the manual gas regulating valve is communicated with the gas stop valve and the electromagnetic valve of the acetylene pipeline.

In the technical solution of the embodiment of the present application, the gas device further includes: and the pressure measuring unit is communicated with the fuel gas stop valve and the acetylene pipeline electromagnetic valve.

In the technical solution of the embodiment of the present application, the pressure measurement unit includes: the two ends of the second gas butt-clamping ball valve are respectively connected with the first gas butt-clamping ball valve and the acetylene pipeline electromagnetic valve;

The two ends of the pressure gauge are respectively connected with the third gas butt-clamping ball valve and the fourth gas butt-clamping ball valve, and the pressure gauge, the third gas butt-clamping ball valve and the fourth gas butt-clamping ball valve are connected with the second gas butt-clamping ball valve in parallel.

In the technical solution of the embodiment of the present application, the gas device further includes: the flowmeter is communicated with the fuel gas stop valve and the acetylene pipeline electromagnetic valve.

Different from the prior art, the above technical scheme leads the mixed gas to be ignited in the pulse tank and generate deflagration through the arrangement of the mixing tank, the header tank, the pulse tank, the nozzle, the air device and the gas device, and the combustion gas instantaneously increases the pressure energy and releases the pressure energy from the nozzle suddenly. The generated shock wave, sound wave and high-speed airflow have the characteristics of refraction, reflection and diffraction, and can impact and shake accumulated ash on a heating surface from all directions to make the accumulated ash disintegrate and peel off, and the high-speed airflow is used for scouring and cleaning, and finally the dust is wrapped by the smoke flow.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is a schematic diagram of a circulating fluidized bed sootblower according to an embodiment;

FIG. 2 is a block diagram of an air device according to an embodiment;

FIG. 3 is a block diagram of a gas turbine engine according to an embodiment;

FIG. 4 is a block diagram of a gas flame apparatus according to an embodiment;

FIG. 5 is a schematic illustration of an electrical control system for a circulating fluidized bed sootblower in accordance with an embodiment;

reference numerals illustrate:

10. A gas flame device; 20. an air device; 30. a gas combustion device;

11. a mixing tank; 12. a header; 13. a pulse tank;

21. An air shutoff valve; 22. a first air-operated ball valve; 23. an air filtration pressure relief valve; 24. an air solenoid valve; 25. a second air-operated ball valve;

31. A gas shutoff valve; 32. a first gas butt-clamping ball valve; 33. an acetylene gas line solenoid valve; 34. an acetylene gas pipeline fuel gas electromagnetic valve; 35. a flame arrester; 36. a gas butt-clamping check valve; 37. a pressure measurement unit;

371. A pressure gauge; 372. the second fuel gas butt-clamping ball valve; 373. the third fuel gas butt-clamping ball valve; 374. and a fourth gas butt-clamping ball valve.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

Firstly, the high exhaust gas temperature of the circulating fluidized bed boiler affects the thermal efficiency of the boiler, and meanwhile, the excessive temperature can seriously affect the safe operation of the bag-type dust collector and the desulfurization equipment. The dust accumulation of the air preheater at the tail part of the boiler is a main reason for influencing the exhaust gas temperature.

In particular, the circulating fluidized bed combustion technology has remarkable advantages in energy saving and environmental protection, but because the circulating fluidized bed combustion technology can use inferior coal, the ash deposition problem of a tail flue of a circulating fluidized bed boiler is also serious, and the ash deposition presents ash deposition characteristics different from those of a pulverized coal furnace. The ash in heated area is one of the factors affecting the safe and economic operation of the circulating-flow bed boiler, in a vertical shaft flue, the tube bundles of the superheater and the economizer are easy to accumulate ash, and fly ash deposits on the heated surface of the tube bundles to generate ash-to-ash thermal resistance, so that the heat transfer capacity of the heated surface is reduced, the problems of temperature reduction, smoke discharge temperature rise, overtemperature of the tube wall of the heated surface and the like occur, and meanwhile, in some horizontal flues, the ash accumulation is generated at the bottom of the horizontal flue, so that the resistance of smoke in the flue is increased, and the problems directly affect the normal operation of a unit and affect the efficiency of the boiler.

Referring to fig. 1 to 5, the present application discloses a circulating fluidized bed soot blower, comprising:

A gas flame device 10, the gas flame device 10 comprising: the device comprises a mixing tank 11, a header 12, a pulse tank 13 and a nozzle, wherein the header 12 is communicated with the mixing tank 11, the pulse tank 13 is communicated with the header 12, the nozzle is arranged on the pulse tank 13, the pulse tank 13 is used for providing a deflagration place, one end of the nozzle, which is far away from the pulse tank 13, is arranged towards an air preheater at the tail part of a boiler, and the nozzle is used for releasing pressure energy towards the air preheater;

An air device 20, the air device 20 being in communication with the mixing tank 11, and the air device 20 being for providing air to the mixing tank 11;

And a gas device 30, wherein the gas device 30 is communicated with the mixing tank 11, and the gas device 30 is used for providing combustible gas to the mixing tank 11.

The mixing tank 11 is used for accommodating a mixed gas (hereinafter referred to as a mixed gas) obtained by mixing a combustible gas and air, that is, the combustible gas is introduced into the mixing tank 11 through a pipe, and at the same time, the air is introduced into the mixing tank 11 through a pipe, and the air is mixed with the combustible gas in the mixing tank 11.

The header 12 is in communication with the mixing tank 11 via a pipeline, and the mixed gas in the mixing tank 11 is conveyed into the header 12 via the pipeline, and in the present application, the header 12 is used to redistribute the working medium (i.e., the mixed gas generated by the combustible gas and air in the present application) into other pipelines.

In some embodiments, the header 12 is a rotatable header 12. Before the soot blowing system is put into operation, the gas flow is regulated by rotating the header 12, and the gas-air mixing ratio is determined. And confirming the main program precooling time, the air distribution time delay, the ignition time delay, the cleaning time, the purging time of each branch, the air distribution time and the pulse times.

Program control starting: clicking "program reset" → "clicking" self-checking/program control "(program control mode) →" clicking "branch one-key full selection" → "clicking" the header 12 that needs to enter program control is selected as all "1# header 12 program control selection", "2# header 12 program control selection", "3# header 12 program control selection" → "clicking" program control start ". The soot blowing program performs the purging according to the flow chart.

The number of the pulse tanks 13 is plural, the plural pulse tanks 13 are connected with the header 12 through a pipe, and the header 12 is a rotatable header 12, and the header 12 can distribute the mixed gas into the respective pulse tanks 13 on average or in accordance with a preset specific gravity by rotation. When the mixed gas is placed in the pulse pot 13, the pulse pot 13 ignites to effect knocking of the mixed gas.

The nozzle can be rotatably or fixedly arranged on the pulse tank 13, and when the nozzle is rotatably arranged on the pulse tank 13, the angle of the nozzle can be adjusted in real time according to the thickness of accumulated ash in different areas; when the nozzle is fixed on the pulse tank 13, the shock wave realizes the ash cleaning operation along the preset direction.

Specifically, the mixed gas is ignited by flame in the pulse tank 13 and generates deflagration, the instantaneous pressure of the combustion gas is increased, and the sudden pressure is released from the nozzle to generate shock waves, sound waves and high-speed air flow; because the shock wave and the acoustic wave have the characteristics of refraction, reflection and diffraction, accumulated dust on a heating surface can be beaten, vibrated and thinned from all directions, so that the accumulated dust is cracked and stripped, and is scoured and cleaned by high-speed airflow, and finally the dust is wrapped and taken away by the flue gas flow.

An air device 20 is connected with the mixing tank 11 in a pipeline way, and the air device 20 is used for providing quantitative air for the mixing tank 11; the gas device 30 is connected with the mixing tank 11 through a pipeline, and the gas device 30 is used for providing quantitative combustible gas for the mixing tank 11. The combustible gas and air are mixed in the mixing tank 11 according to a preset ratio.

In contrast to the prior art, the above-mentioned technical solution is that the mixed gas is ignited in the pulse tank 13 and detonates, the combustion gas instantaneously increases the pressure energy, and the pressure energy is released from the nozzle suddenly by the arrangement of the mixing tank 11, the header tank 12, the pulse tank 13, the nozzle, the air device 20 and the gas device 30. The generated shock wave, sound wave and high-speed airflow have the characteristics of refraction, reflection and diffraction, and can impact and shake accumulated ash on a heating surface from all directions to make the accumulated ash disintegrate and peel off, and the high-speed airflow is used for scouring and cleaning, and finally the dust is wrapped by the smoke flow.

Referring to FIG. 5, in some embodiments, a circulating fluidized bed sootblower further comprises: a control unit and an ignition unit; the control unit is electrically connected with the header 12 and the ignition unit, and can control the ignition unit to start and ignite the mixed gas in the pulse tank 13; the control unit can control the header 12 to rotate and distribute working medium.

In the application, the power source such as an air pump can be additionally arranged on the pipeline to provide power for the transportation of the mixed gas; of course, in some embodiments, the mixed gas transport may also be driven by the combustible gas and air entering the mixing tank 11.

According to some embodiments of the application, referring to fig. 1, 2 and 5, the air device 20 comprises: an air shut-off valve 21, a first air-paired ball valve 22, an air-filtration pressure-reduction valve 23, and an air solenoid valve 24;

The air stop valve 21 is communicated with the first air clamp ball valve 22, the first air clamp ball valve 22 is communicated with the air filtering and pressure reducing valve 23, the air filtering and pressure reducing valve 23 is communicated with the air electromagnetic valve 24, and the air electromagnetic valve 24 is communicated with the mixing tank 11. In some embodiments, the air device 20 further comprises: a second air-paired ball valve 25, the air solenoid valve 24 is communicated with the second air-paired ball valve 25, and the second air-paired ball valve 25 is communicated with the mixing tank 11.

The air stop valve 21, the first air butt clamp ball valve 22, the air filtering pressure reducing valve 23, the air solenoid valve 24 and the second air butt clamp ball valve 25 are communicated through a pipeline, and the air stop valve 21, the first air butt clamp ball valve 22, the air filtering pressure reducing valve 23, the second air butt clamp ball valve 25 and the air solenoid valve 24 are sequentially arranged along the air conveying direction. That is, the air shut-off valve 21, the first air-to-clamp ball valve 22, the air-filtration pressure-reduction valve 23, the air solenoid valve 24, and the second air-to-clamp ball valve 25 are connected in series in this order.

Referring to fig. 5, the air solenoid valve 24 is electrically connected to the control unit to precisely control the amount of air entering the mixing tank 11; and can also be used for preventing the mixed gas from flowing backwards.

According to some embodiments of the application, referring to fig. 1, 3, 4 and 5, the gas device 30 comprises: the gas stop valve 31, the first gas butt clamp ball valve 32, the acetylene gas pipeline electromagnetic valve 33, the acetylene gas pipeline gas electromagnetic valve 34, the flame arrester 35 and the gas butt clamp check valve 36;

The gas stop valve 31 is communicated with the first gas butt clamp ball valve 32, the first gas butt clamp ball valve 32 is communicated with the acetylene gas pipeline electromagnetic valve 33, the acetylene gas pipeline electromagnetic valve 33 is communicated with the flame arrester 35, and the flame arrester 35 is communicated with the gas butt clamp check valve 36.

In this embodiment, the combustible gas is acetylene.

The gas stop valve 31, the first gas butt-clamping ball valve 32, the acetylene gas pipeline electromagnetic valve 33, the acetylene gas pipeline gas electromagnetic valve 34, the flame arrester 35 and the gas butt-clamping check valve 36 are communicated through a pipeline, and the gas stop valve 31, the first gas butt-clamping ball valve 32, the acetylene gas pipeline electromagnetic valve 33, the acetylene gas pipeline gas electromagnetic valve 34, the flame arrester 35 and the gas butt-clamping check valve 36 are sequentially arranged along the combustible gas conveying direction. Referring to fig. 5, the acetylene line solenoid valve 33 and the acetylene line gas solenoid valve 34 are electrically connected to a control unit to precisely control the amount of combustible gas entering the mixing tank 11; the gas-clip check valve 36 serves to prevent the mixed gas from flowing back.

According to some embodiments of the application, the gas device 30 further comprises: the manual gas regulating valve is communicated with the gas stop valve 31, and the manual gas regulating valve is communicated with the acetylene pipeline electromagnetic valve 33. According to some embodiments of the application, the gas device 30 further comprises: a flow meter in communication with the gas shutoff valve 31 and in communication with the acetylene line solenoid valve 33.

A manual gas regulating valve and/or a flowmeter are also arranged on the pipeline between the first gas butt-clamping ball valve 32 and the acetylene pipeline electromagnetic valve 33, the manual gas regulating valve is used for manually controlling the flow of the combustible gas, and the flowmeter is used for counting the amount of the combustible gas entering the mixing tank 11.

According to some embodiments of the application, referring to fig. 1, 3, 4 and 5, the gas device 30 further comprises: a pressure measurement unit 37, wherein the pressure measurement unit 37 is communicated with the fuel gas stop valve 31, and the pressure measurement unit 37 is communicated with the acetylene pipeline electromagnetic valve 33.

A pressure measuring unit 37 is further provided on the pipe between the first gas butt-clamping ball valve 32 and the acetylene pipe solenoid valve 33, and the pressure measuring unit 37 is a pressure detecting unit for detecting the pressure of the gas flowing through the pipe.

Further, according to some embodiments of the present application, referring to fig. 1, 3, 4 and 5, the pressure measuring unit 37 includes: the two ends of the second gas butt-clamp ball valve 372 are respectively connected with the first gas butt-clamp ball valve 32 and the acetylene pipeline electromagnetic valve 33;

The two ends of the pressure gauge 371 are respectively connected with the third gas butt-clamp ball valve 373 and the fourth gas butt-clamp ball valve 374, and the pressure gauge 371, the third gas butt-clamp ball valve 373 and the fourth gas butt-clamp ball valve 374 are connected in parallel with the second gas butt-clamp ball valve 372.

A second gas butt-clamping ball valve 372 is further arranged on a pipeline between the first gas butt-clamping ball valve 32 and the acetylene pipeline electromagnetic valve 33, and a pressure gauge 371 is connected with the second gas butt-clamping ball valve 372 in parallel; a third gas pinch ball valve 373 and a fourth gas pinch ball valve 374 are respectively arranged at both ends of the pressure gauge 371, i.e. the pressure gauge 371, the third gas pinch ball valve 373 and the fourth gas pinch ball valve 374 are connected in series on a parallel pipeline.

Finally, the gas shutoff valve 31, the first gas butt clamp ball valve 32, the gas manual valve, the pressure measuring unit 37, the flowmeter, the acetylene line solenoid valve 33, the acetylene line gas solenoid valve 34, the flame arrester 35, and the gas butt clamp check valve 36 are sequentially connected in series.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (8)

1. A circulating fluidized bed sootblower, comprising:

A gas flame device, the gas flame device comprising: the device comprises a mixing tank, a header, a pulse tank and a nozzle, wherein the header is communicated with the mixing tank, the pulse tank is communicated with the header, and the pulse tank is used for accommodating mixed gas; the nozzle is arranged on the pulse tank, one end of the nozzle, which is far away from the pulse tank, is arranged towards the heating surface, and the nozzle is used for releasing pressure energy towards the heating surface;

An air device in communication with the mixing tank and configured to provide air to the mixing tank;

and the gas device is communicated with the mixing tank and is used for providing combustible gas for the mixing tank.

2. A circulating fluidized bed sootblower of claim 1 wherein said air means comprises: an air stop valve, a first air butt-clamping ball valve, an air filtering pressure reducing valve and an air solenoid valve;

The air stop valve is communicated with the first air butt clamp ball valve, the first air butt clamp ball valve is communicated with the air filtering and pressure reducing valve, the air filtering and pressure reducing valve is communicated with the air electromagnetic valve, and the air electromagnetic valve is communicated with the mixing tank.

3. The circulating fluidized bed sootblower of claim 2, wherein said air means further comprises: the second air butt clamp ball valve, the air solenoid valve with second air butt clamp ball valve UNICOM, second air butt clamp ball valve with the blending tank intercommunication.

4. A circulating fluidized bed sootblower of claim 1 wherein said gas fired means comprises: the device comprises a fuel gas stop valve, a first fuel gas butt-clamping ball valve, an acetylene pipeline electromagnetic valve, an acetylene pipeline fuel gas electromagnetic valve, a flame arrester and a fuel gas butt-clamping check valve;

the gas stop valve is communicated with the first gas butt-clamping ball valve, the first gas butt-clamping ball valve is communicated with the acetylene gas pipeline electromagnetic valve, the acetylene gas pipeline electromagnetic valve is communicated with the flame arrester, and the flame arrester is communicated with the gas butt-clamping check valve.

5. The circulating fluidized bed sootblower of claim 4, wherein said gas fired device further comprises: the manual gas regulating valve is communicated with the gas stop valve and the electromagnetic valve of the acetylene pipeline.

6. The circulating fluidized bed sootblower of claim 4, wherein said gas fired device further comprises: and the pressure measuring unit is communicated with the fuel gas stop valve and the acetylene pipeline electromagnetic valve.

7. The circulating fluidized bed sootblower of claim 6, wherein said pressure measurement unit comprises: the two ends of the second gas butt-clamping ball valve are respectively connected with the first gas butt-clamping ball valve and the acetylene pipeline electromagnetic valve;

The two ends of the pressure gauge are respectively connected with the third gas butt-clamping ball valve and the fourth gas butt-clamping ball valve, and the pressure gauge, the third gas butt-clamping ball valve and the fourth gas butt-clamping ball valve are connected with the second gas butt-clamping ball valve in parallel.

8. The circulating fluidized bed sootblower of claim 4, wherein said gas fired device further comprises: the flowmeter is communicated with the fuel gas stop valve and the acetylene pipeline electromagnetic valve.