Acoustic shock wave mixed soot blower for combustion flue

Abstract

The sound and shock wave mixed soot blowing device comprises an air inlet assembly, an energy storage tank, a scanning type sound wave assembly, a scanning type shock wave assembly, an intelligent pressure supplementing unit and a control cabinet, and the air inlet assembly is connected with the energy storage tank and used for providing a pressure stabilizing air source for the energy storage tank; the intelligent pressure supplementing unit is installed on the air inlet assembly and matched with the air inlet assembly, and the intelligent pressure supplementing unit is used for conducting intelligent pressure supplementing on the air inlet assembly; the energy storage tank is connected with the scanning type sound wave assembly and the scanning type shock wave assembly. The scanning type sound wave assembly is installed on the outer wall face of the furnace flue and matched with the first working opening in an aligned mode. Through combined work of scanning type sound waves and scanning type shock waves, under the condition of single gas source supply, the dual advantages of sound wave ash removal and shock wave ash removal are combined, so that the ash removal requirements of a combustion flue under various working conditions are met, and then the working efficiency of a heating boiler is better guaranteed.

Description

technical field [0001] The invention relates to a flue soot blowing device, in particular to a mixed soot blowing device which is driven by a single gas source and combines shock wave and sound wave dual-mode soot blowing in the same furnace tunnel. Background technique [0002] As the main heat source in current industrial production, heating boilers consume large amounts of fuel and have high operating costs. Therefore, improving the thermal efficiency of the heating boiler plays an important role in reducing the energy consumption of the device. Under the condition that other conditions remain unchanged, reducing the heat loss of the heating furnace is one of the important means to improve the thermal efficiency. When the furnace thermal efficiency (90%) is high, the exhaust heat loss accounts for about 70%~80% of the total heat loss. [0003] When the soot such as carbon particles and ash in the fuel generated by incomplete combustion of the heating furnace are adsor...

AI Technical Summary

Problems solved by technology

Theoretically, the pipe pressure of the high gas inlet pipe is a fixed value, but in the actual application process, due to many reasons such as the pipe structure and air pump equipment, the air source pressure value and the expected pressure value when the shock wave is generated are small, which means As a result, the actual shock wave soot blowing effect is difficult to reach the design value

In addition, in the actual furnace soot blowing practice, due to many reasons, some furnaces have many elbows and complex shapes of the furnace. Using a shock wave soot blower for soot blowing will have many working blind spots and cannot be effectively To achieve the purpose of dust removal, therefore, such furnaces generally use sonic soot blowing devices for soot blowing work. The sonic soot blowing device generates vibration between the energy in the sound wave and the internal dust to control the deposition status of the dust on the surface of the flue pipe. Cause damage, transform the dust into a suspended state, and finally discharge with the flue gas

Although the sonic soot blowing device has obvious advantages in soot blowing coverage compared with the shock wave soot blowing device, there are still some deficiencies in the existing sonic soot blowing device

Specifically, nowadays, there are various types of boiler sootblowers on the market, and the flute-type sootblower is one of them. The flute-type sootblower converts compressed air into sound energy to achieve The purpose of soot cleaning, but the direction of the sound wave generating port of the flute type soot blower on the market is fixed, but due to the characteristics of the sound wave itself, the strength of the area where the sound wave exists during the soot cleaning process is divided, that is, it is emitted toward the nozzle. The sound energy of the sound wave is larger, and the cleaning effect is better, while the sound wave energy facing away from the nozzle is smaller, and the cleaning effect is poor, which makes the cleaning effect of different areas in the furnace different. After long-term accumulation, it may still cause furnace Dust accumulation in some areas of the road

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