Pulse shock wave soot blower capable of adjusting combustion ratio and use method

Abstract

The invention relates to the technical field of soot blowing devices, in particular to a pulse shock wave soot blowing device capable of adjusting the combustion ratio and a using method. An oxygen source, a fuel gas source and a compressed air source are obtained from an oxygen source control device, a fuel gas source control device and a compressed air source control device which are arranged in parallel at the same time; a PLC (programmable logic controller) is arranged in a pipeline, a gas distribution adjusting module is arranged for a gas source of each pipeline, and the gas flow of oxygen, fuel gas and compressed air is in an optimal matching state in real time under the control of the PLC, so that the complete combustion theory is met, a high-oxygen detonation mode is formed, carbon deposition of equipment is reduced, the maintenance cost is low, flame cutting is prevented, and the equipment is prevented from being damaged by ultrahigh temperature; by selecting natural gas, liquefied gas, coalification gas and other fuels with better economical efficiency and cooperating with a high-oxygen deflagration mode of compressed air and oxygen, a better soot blowing effect is obtained, meanwhile, the fuel cost is reduced by 80%, and the economical efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soot blowing device, in particular to a pulse shock wave soot blowing device with adjustable combustion ratio and a use method thereof. BACKGROUND

[0002] The fuel and oxidant of the gas shock wave soot blowing device on the market are relatively single, mainly acetylene and compressed air combustion, and occasionally natural gas, liquefied gas, coal gas and the like are used as fuel, and air oxygen is used as oxidant. The cost of soot blowing is high, but due to the complex gas source conditions, pressure, flow and purity of different projects are different. The traditional gas shock wave soot blowing device cannot make the fuel and oxidant in the best combustion ratio state, and cannot obtain good deflagration effect. The soot blowing effect is unstable. If the fuel content is too high, the combustion is insufficient, which will cause serious carbon deposition of the equipment. If the oxidant content is too high, it will cause flame cutting, damage the equipment at high temperature, and frequent gas leakage. There are also high "dumb bomb" rate and other phenomena. The economic efficiency is seriously affected after operation. SUMMARY

[0003] In order to solve the defects of the prior art, the present application provides a pulse shock wave soot blowing device with adjustable combustion ratio and a use method thereof.

[0004] The present application adopts the following technical scheme: A pry block type pulse shock wave soot blowing method with adjustable combustion ratio, comprising the following steps: S1: respectively and simultaneously obtaining oxygen gas source, fuel gas source and compressed air gas source, and purifying and filtering the gas sources of each pipeline, and adjusting the gas pressure to a preset value; S2: controlling the gas distribution and adjustment module arranged on each pipeline to make the gas flow of oxygen, fuel gas and compressed air in real time in the best ratio state to meet the complete combustion theory, and form a high oxygen deflagration mode; S3: controlling the gas source control module arranged on each pipeline to control the opening / closure of the gas source; S4: the gas distribution and mixing module arranged on the mixed gas pipeline fully mixes the oxygen, fuel gas and compressed air in the best ratio; S5: controlling the mixed gas ignition module to ignite quickly, and measuring the temperature in real time, and controlling the opening / closure of the pipeline gas source according to the temperature measurement result; S6: controlling the mixed gas distribution module on the mixed gas pipeline to be in the open valve state to provide a preset amount of mixed gas; S7: controlling the pulse soot blowing execution device to reliably ignite the mixed gas and stabilize the deflagration, and blowing the soot blowing nozzle to the soot blowing part.

[0005] In some embodiments, in S1, according to the instructions of the PLC controller, the gas source pressure stabilizing and filtering modules installed on the pipeline respectively control the gas pressure of the oxygen source, gas source and compressed air source to stabilize to a preset value. The preset value range is set to 0.1-0.3MPa, and the pressure signal is transmitted to the PLC controller in real time.

[0006] In some embodiments, in S2, the gas distribution adjustment module controls the flow rate through a pneumatic flow regulating valve, and the pipeline flow transmitter measures and transmits the flow rate with high precision. The PLC controller, based on the purity, pressure, temperature, and real-time flow rate of the oxygen, fuel gas, and compressed air input from the field, and under the theoretical ratio of complete combustion, gives control commands to the opening degree of the gas distribution adjustment module on each pipeline to achieve the optimal combustion ratio.

[0007] In some embodiments, in S2, the PLC controller controls the opening of the gas distribution adjustment module on the oxygen pipeline to output a fixed amount of oxygen to form a high-oxygen deflagration mode, wherein the oxygen flow rate can be adjusted between 0% and 90% depending on the type of gas and the amount of ash accumulation on site.

[0008] In some embodiments, in S3, when a gas leak alarm is triggered on the gas mixing pipeline, the PLC controller controls the gas source control module to quickly cut off the oxygen and gas supply.

[0009] In some embodiments, in S4, the gas mixing module fully mixes the optimal ratio of oxygen, fuel gas, and compressed air, and can prevent carbon deposits caused by incomplete combustion after the mixture is ignited.

[0010] In some embodiments, in S5, the PLC controller controls the mixed gas ignition module to ignite quickly and acquires the temperature measurement result in real time. When the temperature exceeds the threshold, the PLC controller controls the gas source control module on the oxygen pipeline and the gas pipeline to quickly cut off the gas source. The threshold range is set to 120℃-150℃.

[0011] In some embodiments, in S6, the execution control module on the mixed gas pipeline controls the pneumatic valve opening of the mixed gas distribution module according to the valve opening command of the PLC controller.

[0012] The present invention also provides a pulse shock wave soot blowing device with adjustable combustion ratio, for realizing a pulse shock wave soot blowing method with adjustable combustion ratio.

[0013] In some embodiments, the system includes a pressure-stabilizing filter module, a gas distribution regulating module, and a gas source control module, which are installed in parallel on an oxygen pipeline, a gas pipeline, and a compressed air pipeline, and arranged sequentially. The oxygen pipeline, the gas pipeline, and the compressed air pipeline are all connected to a gas distribution and mixing module on a mixed gas pipeline. The mixed gas pipeline is also sequentially equipped with a mixed gas ignition module, a mixed gas distribution module, and a pulse soot blowing actuator. The pressure-stabilizing filter module, the gas distribution regulating module, the gas source control module, the mixed gas ignition module, and the mixed gas distribution module are all connected to a PLC controller. A gas leak alarm is also installed on the mixed gas pipeline, and the alarm is connected to the PLC controller.

[0014] Beneficial effects:

[0015] This invention discloses a pulse shock wave soot blowing device with adjustable combustion ratio and its usage method. Compared with the prior art, this invention has the following advantages: This invention discloses an adjustable combustion ratio pulse shock wave soot blowing device and its usage method. It simultaneously obtains oxygen, fuel gas, and compressed air from parallel-arranged oxygen, fuel gas, and compressed air source control devices. Each pipeline's gas source is equipped with a gas distribution adjustment module. Under PLC controller control, purification and filtration are performed, and the gas pressure is stabilized to a preset value. The gas flow rates of oxygen, fuel gas, and compressed air are maintained in real-time at the optimal ratio to meet the theory of complete combustion and to form a high-oxygen deflagration mode. This reduces carbon buildup in equipment, lowers maintenance costs, and is particularly advantageous. Controlling the oxygen flow rate prevents flame cutting and avoids damage to the equipment from excessively high temperatures, which also greatly reduces the occurrence of "duds". By choosing more economical fuels such as natural gas, liquefied petroleum gas, and coal gas, and using a high-oxygen combustion mode with compressed air and oxygen, better soot blowing effect can be achieved, which can reduce the boiler outlet flue gas temperature, improve boiler efficiency, and save the cost of manual soot cleaning and maintenance caused by severe ash accumulation. At the same time, compared with using traditional acetylene as fuel, fuel costs can be saved by 80%, and the company can save more than one million yuan in soot blowing costs annually, effectively improving economic efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below, constituting a part of the present invention. The illustrative embodiments of the present invention and their descriptions explain the present invention and do not constitute an improper limitation of the present invention; in the accompanying drawings: Figure 1 A flowchart illustrating the technical solution of the pulse shock wave soot blowing method with adjustable combustion ratio provided in this embodiment of the invention; Figure 2 This is a schematic diagram of the pulse shock wave soot blowing method with adjustable combustion ratio provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the technical solution of the pulse shock wave soot blowing device with adjustable combustion ratio provided in an embodiment of the present invention.

[0017] In the diagram: Oxygen source control device 1; Oxygen pressure stabilizing and filtering module 11; Oxygen gas distribution regulating module 12; Pneumatic flow regulating valve 121; Pipeline flow transmitter 122; Oxygen control module 13; Gas source control device 2; Gas pressure stabilizing and filtering module 21; Gas gas distribution regulating module 22; Gas control module 23; Compressed air source control device 3; Compressed air pressure stabilizing and filtering module 31; Compressed air gas distribution regulating module 32; Compressed air control module 33; Gas mixing module 4; Mixed gas ignition module 5; Over-temperature probe 51; High-energy igniter head 52; Mixed gas distribution module 6; Mixed gas distribution valve 61; Execution control module 62; Pulse soot blowing actuator 7; Pulse tank 71; Soot blowing nozzle 72; PLC controller 8; Alarm 9. Detailed Implementation

[0018] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention, including various details to aid understanding. These details should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0019] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] like Figures 1-3 As shown, the technical solution of the present invention is as follows: A skid-mounted pulse shock wave soot blowing method with adjustable combustion ratio includes the following steps: S1: PLC controller 8 controls the oxygen pipeline, gas pipeline and compressed air pipeline to obtain oxygen source, gas source and compressed air source respectively and simultaneously, and controls the oxygen pressure stabilizing and filtering module 11, gas pressure stabilizing and filtering module 21 and compressed air pressure stabilizing and filtering module 31 located in the corresponding pipeline to purify and filter the gas source and adjust the gas pressure to the preset value. S2: The PLC controller 8 controls the oxygen distribution adjustment module 12, gas distribution adjustment module 22, and compressed air distribution adjustment module 32 installed on each pipeline respectively, so that the gas flow rates of oxygen, gas, and compressed air are in the optimal ratio in real time to meet the theory of complete combustion and form a high oxygen deflagration mode. S3: The PLC controller 8 controls the oxygen control module 13, gas control module 23, and compressed air control module 33 installed on each pipeline to control the opening / closing of each gas source; S4: The gas mixing module 4 installed on the gas mixing pipeline fully mixes the optimal ratio of oxygen, fuel gas and compressed air; S5: The PLC controller 8 controls the mixed gas ignition module 5 to ignite quickly and measures the temperature in real time, and controls the opening / closing of the pipeline gas source based on the temperature measurement result; S6: The PLC controller 8 controls the gas distribution module 6 on the gas mixing pipeline to be in the open valve state to provide a preset amount of gas mixing; S7: The PLC controller 8 controls the pulse soot blowing device 7 to reliably ignite and stably deflagrate the mixed gas, and the soot blowing nozzle 72 blows the soot towards the part to be soot blown.

[0021] like Figure 1 , Figure 2 As shown, the first preferred embodiment of the present invention is as follows: A skid-mounted pulse shock wave soot blowing method with adjustable combustion ratio includes the following steps: S1: The PLC controller 8 controls the oxygen source control device 1, the gas source control device 2, and the compressed air source control device 3 respectively, and simultaneously controls the oxygen pipeline, gas pipeline, and compressed air pipeline to obtain oxygen source, gas source, and compressed air source respectively. It controls the oxygen pressure stabilizing and filtering module 11, gas pressure stabilizing and filtering module 21, and compressed air pressure stabilizing and filtering module 31 located in the corresponding pipelines to purify and filter the gas source, and adjust the gas pressure to a preset value. The pressure signal is transmitted to the PLC controller 8 in real time. The preset value range is set to 0.1~0.3MPa. In this embodiment, 0.2MPa is selected to ensure that the gas entering the gas distribution and adjustment module is pure and the pressure is stable, laying the foundation for subsequent precise flow control.

[0022] S2: The PLC controller 8 controls the gas distribution adjustment modules installed on each pipeline respectively; the PLC controller 8 controls the oxygen gas distribution adjustment module 12, the gas gas distribution adjustment module 22, and the compressed air gas distribution adjustment module 32 respectively under the theoretical ratio of complete combustion, based on the purity, pressure, temperature of oxygen, gas, and compressed air input on site and the real-time flow feedback, so that the gas flow of oxygen, gas, and compressed air is in the optimal ratio state in real time. The PLC controller 8 controls the opening of the oxygen distribution adjustment module 12 on the oxygen pipeline. The oxygen distribution adjustment module 12 includes a pneumatic flow regulating valve 121 and a pipeline flow transmitter 122. The pneumatic flow regulating valve 121 is used to control the flow rate, and the pipeline flow transmitter 122 is used to measure and transmit the flow rate with high precision to output a quantitative amount of oxygen. The oxygen flow rate can be adjusted between 0% and 90% according to the type of gas and the ash accumulation on site to form a high-oxygen deflagration mode, reduce carbon buildup in the equipment, and reduce maintenance costs. In particular, controlling the oxygen flow rate can prevent flame cutting, avoid damage to the equipment from excessively high temperatures, and greatly reduce the occurrence of "duds".

[0023] The gas includes one of the following combustible gases: acetylene, natural gas, liquefied petroleum gas (LPG), and coal gas. Natural gas, LPG, and coal gas are commonly used fuels that are more economical. In this embodiment, natural gas is selected as the gas.

[0024] The PLC controller 8 controls the opening of the gas distribution regulating module 22 on the natural gas pipeline. The gas distribution regulating module 22 includes a pneumatic flow regulating valve 121 and a pipeline flow transmitter 122. The pneumatic flow regulating valve 121 is used to control the flow rate, and the pipeline flow transmitter 122 is used to measure and transmit the flow rate of the natural gas with high precision and output a fixed amount of natural gas.

[0025] The PLC controller 8 controls the opening of the compressed air distribution adjustment module 32 on the compressed air pipeline. The compressed air distribution adjustment module 32 includes a pneumatic flow regulating valve 121 and a pipeline flow transmitter 122. The pneumatic flow regulating valve 121 is used to control the flow rate, and the pipeline flow transmitter 122 is used to measure and transmit the flow rate with high precision and output a quantitative amount of compressed air.

[0026] The natural gas to oxygen combustion ratio is selected as 1:2, which, combined with the high-oxygen deflagration mode of compressed air plus oxygen, greatly reduces the cost of soot blowing while achieving better soot blowing effect.

[0027] S3: The PLC controller 8 controls the oxygen control module 13, gas control module 23, and compressed air control module 33 installed on the oxygen pipeline, natural gas pipeline, and compressed air pipeline respectively, in order to control the opening / closing of each gas source. The oxygen pipeline, natural gas pipeline, and compressed air pipeline are all connected to the gas mixing module 4.

[0028] In this embodiment, natural gas is used as the fuel. The main component of natural gas is methane, with a concentration of approximately 85%. According to the reaction equation CH4 + 2O2 → CO2 + 2H2O, the reaction is most complete and the combustion and explosion effect is best when the ratio of methane to oxygen is 1:2. The oxygen content in the air is 21%. The program will control the opening of the pneumatic flow regulating valve 121 based on the input gas concentration (usually 85%) and reaction ratio of 1:2. Similarly, the gas concentration and flow rate are fed back to the PLC controller 8 through the pipeline flow transmitter 122 and pressure gauge (not shown in the figure). The PLC controller 8 makes real-time adjustments based on the ratio.

[0029] It should be noted that the ratio of methane, oxygen, and compressed air needs to be determined based on the fuel purity, on-site ash accumulation, and the specific project requirements.

[0030] The combustion temperature of natural gas and air does not exceed 2000℃. Increasing the oxygen content can raise the combustion temperature to 3000℃, and the combustion and explosion effect can be comparable to acetylene, but can save 80% of the cost.

[0031] It should be noted that if a gas leak occurs in the gas mixing pipeline, the alarm 9 installed on the gas mixing pipeline will send a gas leak alarm message to the PLC controller 8. The PLC controller 8 will then control the oxygen control module 13 and the gas control module 23 to quickly cut off the oxygen and natural gas supply, respectively.

[0032] S4: The gas mixing module 4 installed on the gas mixing pipeline fully mixes the optimal ratio of oxygen, fuel gas and compressed air, and can prevent carbon deposits caused by incomplete combustion after the gas mixture is ignited.

[0033] S5: The PLC controller 8 controls the mixed gas ignition module 5 to ignite quickly and obtains the temperature measurement results in real time. When the temperature exceeds the threshold, the oxygen control module 13 on the oxygen pipeline is controlled to quickly cut off the oxygen, and the gas control module 23 on the gas pipeline is controlled to quickly cut off the natural gas source. The temperature threshold range is set to 120°~150°, and the temperature threshold of this invention is 135°.

[0034] S6: The PLC controller 8 controls the gas distribution module 6 on the gas mixing pipeline to be in the open valve state to provide a preset amount of gas mixing; The gas mixture distribution module 6 includes a gas mixture distribution valve 61 and an execution control module 62; the execution control module 62 controls the valve opening of the gas mixture distribution valve 61 according to the instructions of the PLC controller 8, so as to control the amount of gas mixture.

[0035] S7: The pulse soot blowing device 7 reliably ignites and stably deflagrates the mixed gas in the pulse tank 71, and the soot blowing nozzle 72 blows the soot towards the part to be soot blown.

[0036] It should be noted that traditional gas shockwave soot blowers involve the reaction of acetylene and compressed air. Acetylene has a combustion and explosion range of 2.1% to 80% in air. For ease of flow control and safety, the gas pressure is reduced to 0.1 to 0.3 MPa through a pressure reducing valve. From the reaction equation of acetylene and oxygen 2C2H2 + 5O2 → 4CO2 + 2H2O, it can be concluded that the reaction is most complete and the combustion and explosion effect is best when the ratio of acetylene to oxygen is 1:2.5. However, the oxygen content in air is 21%. Therefore, although the combustion and explosion effect is good when the acetylene to compressed air mixture ratio is about 8%, the cost is high. For example, a single Q37 / 650-20-3.8 / 450 metallurgical waste heat furnace operates for 8,000 hours per year. A single cylinder of acetylene gas costs approximately 110 yuan, and the annual soot blowing cost is approximately 200,000 yuan. If the soot blowing method of this invention is used, with natural gas as fuel, fuel costs can be reduced by 80%, meaning that a single furnace can save approximately 150,000 yuan per year. Moreover, the soot blowing effect is good, which can reduce the boiler outlet flue gas temperature, improve boiler efficiency, and also save the costs of manual soot cleaning and maintenance caused by severe ash accumulation. The company can save more than one million yuan per year.

[0037] The second preferred embodiment of the present invention, such as Figure 3 As shown: This invention also provides a pulse shock wave soot blowing device with adjustable combustion ratio for realizing a pulse shock wave soot blowing method with adjustable combustion ratio. It includes a gas source control device installed in parallel on an oxygen pipeline, a gas pipeline, and a compressed air pipeline. The gas source control device includes a pressure stabilizing filter module, a gas distribution adjustment module, and a gas source control module arranged sequentially. The oxygen pipeline, the gas pipeline, and the compressed air pipeline are all connected to a gas mixing module 4 installed on a mixed gas pipeline. The mixed gas pipeline also has a mixed gas ignition module 5, a mixed gas distribution module 6, and a pulse soot blowing actuator 7 arranged sequentially. The oxygen gas source control device 1 includes an oxygen pressure stabilizing filter module 11, an oxygen gas distribution adjustment module 12, and an oxygen control module 13. The oxygen gas distribution adjustment module 12 includes a function for controlling flow rate. The gas source control device 2 includes a pneumatic flow regulating valve 121 and a pipeline flow transmitter 122 for high-precision measurement and transmission of flow rate to output a quantitative gas; the gas source control device 2 includes a gas pressure stabilizing and filtering module 21, a gas distribution regulating module 22, and a gas control module 23; and the gas distribution regulating module 22 includes a pneumatic flow regulating valve 121 for controlling the flow rate and a pipeline flow transmitter 122 for high-precision measurement and transmission of flow rate to output a quantitative natural gas; the compressed air source control device 3 includes a compressed air pressure stabilizing and filtering module 31, a compressed air distribution regulating module 32, and a compressed air control module 33; and the compressed air distribution regulating module 32 includes a pneumatic flow regulating valve 121 for controlling the flow rate and a pipeline flow transmitter 122 for high-precision measurement and transmission of flow rate to output a quantitative compressed air.

[0038] The oxygen pressure stabilizing and filtering module 11, the oxygen gas distribution regulating module 12, and the oxygen control module 13 on the oxygen pipeline; the gas pressure stabilizing and filtering module 21, the gas gas distribution regulating module 22, and the gas control module 23 on the gas pipeline; the compressed air pressure stabilizing and filtering module 31, the compressed air gas distribution regulating module 32, and the compressed air control module 33 on the compressed air pipeline; and the mixed gas ignition module 5 and the mixed gas distribution module 6 on the mixed gas pipeline are all connected to the PLC controller 8. A gas leak alarm 9 is also installed on the mixed gas pipeline, and the alarm 9 is connected to the PLC controller 8. When a mixed gas leak occurs, the PLC controller 8 controls the oxygen control module 13 and the gas control module 23 to quickly cut off the oxygen and natural gas sources, respectively.

[0039] The mixed gas ignition module 5 includes an over-temperature probe 51 and a high-energy ignition head 52; the over-temperature probe 51 is connected to the PLC controller 8, so that when the temperature value exceeds the temperature threshold, the PLC controller 8 controls the oxygen control module 13 and the gas control module 23 to quickly cut off the oxygen and natural gas sources respectively.

[0040] The gas mixture distribution module 6 includes a gas mixture distribution valve 61 and an execution control module 62; the execution control module 62 controls the valve opening of the gas mixture distribution valve 61 according to the instructions of the PLC controller 8, so as to control the amount of gas mixture.

[0041] The pulse soot blowing device 7 includes a pulse tank 71 and a soot blowing nozzle 72, which reliably ignites and stably deflagrates the mixed gas in the pulse tank 71, and blows the soot blowing nozzle 72 toward the part to be soot blown.

[0042] Under the control of PLC controller 8, this device sets the ratio of oxygen, natural gas, and compressed air according to fuel purity, on-site ash accumulation, and specific project requirements to ensure the most complete reaction, the best combustion and explosion effect, and good ash blowing effect. Furthermore, by using natural gas as fuel, it can save 80% of fuel costs, effectively improving economic efficiency.

[0043] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A method of pulse shock soot-blowing with adjustable combustion ratio, characterized by: Includes the following steps: S1: Obtain oxygen, gas, and compressed air sources simultaneously and separately, and purify and filter the gas sources in each pipeline and adjust the gas pressure to the preset value. S2: Controls the gas distribution adjustment modules on each pipeline to ensure that the gas flow rates of oxygen, fuel gas, and compressed air are in the optimal ratio in real time to meet the theory of complete combustion and form a high-oxygen deflagration mode. S3: Control the gas source control module installed on each pipeline to control the opening / closing of the gas source; S4: The gas mixing module installed on the gas mixing pipeline fully mixes the optimal ratio of oxygen, fuel gas and compressed air; S5: Controls the mixture ignition module to ignite quickly and measures the temperature in real time, and controls the opening / closing of the pipeline gas source based on the temperature measurement results; S6: Controls the gas distribution module on the gas mixing pipeline to be in the open valve state to provide a preset amount of gas mixture; S7: Control the pulse soot blowing device to reliably ignite the mixed gas and stably deflagrate, and blow the soot blowing nozzle toward the part to be soot blown.

2. The adjustable fuel ratio pulsed shocked soot-blowing method of claim 1, wherein: In S1, according to the instructions of the PLC controller, the gas source pressure stabilizing and filtering modules installed on the pipeline control the preset values ​​of the gas pressure stability of the oxygen source, gas source, and compressed air source to be 0.1-0.3MPa, and the pressure signals are transmitted to the PLC controller in real time.

3. The adjustable fuel ratio pulsed shocked soot-blowing method of claim 1, wherein: In S2, the gas distribution adjustment module controls the flow rate through a pneumatic flow regulating valve, and the pipeline flow transmitter measures and transmits the flow rate with high precision. The PLC controller, based on the purity, pressure, temperature, and real-time flow rate of oxygen, fuel gas, and compressed air input from the field, and under the theoretical ratio of complete combustion, gives control commands to the opening degree of the gas distribution adjustment module on each pipeline to achieve the optimal combustion ratio.

4. The method of claim 3, wherein: In S2, the PLC controller controls the opening of the gas distribution adjustment module on the oxygen pipeline to output a fixed amount of oxygen to form a high-oxygen deflagration mode. The oxygen flow rate can be adjusted between 0% and 90% depending on the type of gas and the amount of ash accumulation on site.

5. The adjustable fuel ratio pulsed shock cleaning method of claim 1, wherein: In S3, when a gas leak alarm is triggered on the mixed gas pipeline, the PLC controller controls the gas source control module to quickly cut off the oxygen and gas supply.

6. The adjustable fuel ratio pulsed shocked soot-blowing method of claim 1, wherein: In S4, the gas mixing module fully mixes the optimal ratio of oxygen, fuel gas, and compressed air, and can prevent carbon deposits caused by incomplete combustion after the mixture is ignited.

7. The adjustable fuel ratio pulsed shocked soot-blowing method of claim 1, wherein: In S5, the PLC controller controls the mixed gas ignition module to ignite quickly and acquires the temperature measurement results in real time. When the temperature exceeds the threshold, the gas source control module on the oxygen pipeline and the gas pipeline quickly cuts off the gas source. The threshold range is set to 120℃-150℃.

8. The adjustable fuel ratio pulsed shocked soot-blowing method of claim 1, wherein: In S6, the execution control module on the mixed gas pipeline controls the pneumatic opening of the mixed gas distribution module according to the valve opening command of the PLC controller.

9. An adjustable combustion ratio pulse shock sootblower characterized by: The pulse shock wave soot blowing method for implementing the adjustable combustion ratio as described in any one of claims 1-8.

10. The adjustable fuel ratio pulse shocked soot blower device of claim 9, wherein: The device comprises a stable pressure filtering module, a gas distribution adjusting module and a gas source control module which are installed on the oxygen pipeline, the gas pipeline and the compressed air pipeline respectively in parallel and arranged in sequence, the oxygen pipeline, the gas pipeline and the compressed air pipeline are communicated with a gas distribution mixing module arranged on the mixed gas pipeline, a mixed gas ignition module, a mixed gas distribution module and a pulse soot blowing execution device are arranged on the mixed gas pipeline in sequence, the stable pressure filtering module, the gas distribution adjusting module, the gas source control module, the mixed gas ignition module and the mixed gas distribution module are connected with a PLC controller, a gas leakage alarm is installed on the mixed gas pipeline, and the alarm is connected with the PLC controller.

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