Check ash valve used for sound wave ash blower

Abstract

The invention relates to a check ash valve used for a sound wave ash blower. The check ash valve comprises a valve body, an upper valve element, a lower valve element, a valve seat assembly, a sliding rod and a flange plate. When airflow and sound waves enter the check ash valve, the valve elements are pushed open under the action of the airflow, the check ash valve is opened, and the sound waves and the airflow bring away smoke, small particles and the like through the check ash valve. When the pressure of the airflow is reduced or the airflow stops, the valve elements fall under the action of gravity, the lower valve element makes contact with the valve body, the check ash valve is closed, smoke and the like which flow back cannot enter the check ash valve, and it is ensured that a sound wave generation device is not corroded by smoke which flows back. A sound impedance matching technology and a damping sound insulation and noise reduction technology are adopted for the check ash valve, the problem of noise leakage in the working process is solved, it is ensured that sound wave energy is effectively transmitted, energy losses are reduced, and it is ensured that the sound wave ash blower runs safely and efficiently.

Description

technical field [0001] The invention relates to a non-return ash valve, in particular to a non-return ash valve for a sonic soot blower. Background technique [0002] During the production and operation of the boiler, the heating surfaces (surfaces of the water wall, superheater, economizer, preheater, heat exchanger, etc.) Coking etc. Due to the ash accumulation, slagging and coking on the heating surface and flue, the effect of ventilation and smoke exhaust in the boiler is affected, resulting in incomplete combustion of coal. On the one hand, the effective calorific value of coal is wasted, which increases coal consumption. On the other hand, the concentration of harmful gases in the exhaust gas increases, affecting the atmospheric environment and the total social pollutant discharge in the region, and deteriorating the atmospheric environment. [0003] In order to effectively solve the phenomenon of soot accumulation, slagging and coking on the surface of the boiler, ...

AI Technical Summary

Problems solved by technology

During the actual use of the sonic soot blower, it was found that some of the fallen particles and dust would flow back into the generating device of the sonic generator. In order to ensure the sounding efficiency of the sonic generator, the sounding device is designed with high precision. The backflow of dust to the sonic generator generating device will corrode the sonic sootblower, affect its working efficiency, and even cause the sounding device to be stuck in severe cases. Therefore, in order to prevent such a situation, there is an urgent need for an effective prevention Dust, particles, etc. flow back into the sound wave generating device, which can ensure the transmission efficiency of the sound wave, reduce energy loss, and ensure the safe and efficient operation of the sonic soot blower. The check valve for the sonic soot blower

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