Suspended diaphragm type sound wave soot blower

Abstract

The invention relates to a sound wave soot blower which comprises a sound wave generator and a sound wave conveying channel, wherein the sound wave generator comprises a U-shaped diaphragm support, an annular support body, a diaphragm and a pressing cover; the sound wave conveying channel comprises a sound wave output pipe and a horn mouth which are connected with each other through threads; the U-shaped diaphragm support is provided with a bottom part and two vertical side walls; a gas inlet is arranged on each side wall; a central through hole is formed on the bottom part and is communicated with the sound wave conveying channel; the annular support body is concentrically fastened at the inner side of the bottom part of the diaphragm support; the diaphragm is freely placed on the support body; the pressing cover is locked on the top surface of the diaphragm support by a fastening part and is provided with an annular flange matched with the diaphragm support in internal diameter and pressed against a diaphragm outer edge; and when compressed gas enters the diaphragm support through a solenoid valve via the gas inlet, the diaphragm is suspended on the support body to continuously and slightly bend and recover so as to generate sound wave to be sent out from the sound wave conveying channel. With the adoption of the suspended diaphragm, the sound wave soot blower is not easy to fail in advance and has the advantages of simple structure, low noise, convenience in disassembly and replacement and strong applicability.

Description

technical field [0001] The present invention relates to particulate matter removal apparatus, in particular to apparatus for removing particulate matter from dry surfaces using sound waves, and more particularly to a device for removing particles from dry surfaces in confined spaces using compressed gas and employing suspended diaphragms to generate sound waves material device. Background technique [0002] Sonic sootblowers are widely used to remove particulate matter from surfaces in confined spaces using sound waves. Existing sonic soot blowers use special structures and energy input sources to generate sound waves, which are transmitted into confined spaces to remove dust particles, so as to realize their cleaning function. The principle of sonic dust cleaning is to use the energy of sound waves to vibrate dust particles, making them in a state of bouncing and suspension, and breaking away from the surface of dust accumulation. The greater the energy of the sound wave,...

AI Technical Summary

Problems solved by technology

Although the piston is the only moving part, this kind of sonic soot blower still has the following disadvantages: the reciprocating movement of the piston is used to turn on or off the air source to generate sound waves, because there will be friction and noise when the piston moves, it is necessary to There is a good seal between the piston and the cylinder to maintain its working efficiency, and it is necessary to set a sensitive solenoid valve to control the moving direction of the piston. The sound wave energy generated by the soot blower is not easy to control, consumes a lot of energy and is easy to damage

[0004] Therefore, the sootblower introduced by the Chinese patent whose publication number is CN1415433A and the invention name is "sonic sootblower" adopts a diaphragm, and the diaphragm is fixed by a gland, so its movement is limited, and it can only produce bouncing and retraction. Elastic deformation to switch on and off the air source used to generate sound waves

In this case, the diaphragm is susceptible to excessive stress, causing the diaphragm to be highly susceptible to premature failure due to wear or rupture

This kind of soot blower also produces relatively high noise during work, and its component structure is also more complicated, not easy to process, and its structure is not convenient for disassembly and maintenance of components, debugging is also complicated, high production cost, easy to damage, and high efficiency. low energy consumption

This kind of soot blower is not easy to install, and it is even more difficult to disassemble after installation. It is not easy to maintain and replace. The parts of different models cannot be interchanged. When it is not working, it needs to be cooled by external means.

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