A compressed air shock wave soot blower

Abstract

The invention provides a compressed air shock wave soot blower. The compressed air shock wave soot blower compressed air shock wave soot blower comprises a high-pressure section, a turbulent flow section and an outlet section; the high pressure section is connected to the turbulent flow section, and the turbulent flow section is connected with the outlet section; the cross sections of the high-pressure section, the turbulent flow section and the outlet section are circular; the diameter of a turbulent flow chamber is equal to the diameter of a high-pressure chamber; the diameter of the air inlet end of the outlet section is equal to the diameter of the turbulent flow chamber; and the outlet section is a gradually-shrinking circular spray pipe. The compressed air shock wave soot blower is safe and efficient, simple, wide in application range, adjustable in outlet pressure and the like.

Description

technical field [0001] The invention relates to the technical field of boiler tools, in particular to a compressed air shock wave soot blower used for removing soot and slagging in industries such as boilers, flour, and cement. Background technique [0002] Affected by the nature of the fuel and the increase in boiler heat load, dust and slagging often occur on the heating surfaces of superheaters, economizers, heating furnaces and other components in boilers. The low thermal conductivity of the ash layer greatly reduces the heat transfer efficiency of the wall, which can cause a series of problems such as excessively high exhaust gas temperature, reduced boiler efficiency, and increased coal consumption, which is very harmful to the boiler. Others such as flour and dust in cement factories also need to be removed in time to avoid dust explosion disasters. So various types of sootblowers have been widely used. [0003] Due to the advantages of advanced soot blowing mechani...

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Problems solved by technology

[0004] However, there are still some deficiencies in the air shock wave soot blower at present: (1) The pressure, temperature and density of the shock wave generated in an instant rise sharply, and the destructive power is very strong, so the safety of the soot blowing device needs to be considered; (2) The shock wave generated by compressed air The key lies in the breaking speed of the membrane. At present, it is difficult to approach the ideal opening speed of the diaphragm type fast valve, which results in poor shock wave generation quality and insignificant soot blowing effect; (3) limited by the current air shock wave generation mechanism, many Air shock sootblowers are equipped with pistons, seals, cushions and other wearable parts, which require regular inspection of equipment and replacement of components, resulting in high maintenance costs

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