Double-sleeve oscillating jetter

Abstract

The invention relates to a double-sleeve oscillating jetter, which is controllable, has a size of a solid carbon dioxide particle and can prevent pipe explosion and condensation water. The jetter comprises an oscillating mechanism, a carbon dioxide snowflake generating mechanism, a thermal air current generating mechanism and a control unit, wherein the oscillating mechanism is arranged in the jetter and can form a device for cleaning large area through the swing amplitude of vibrations; the carbon dioxide snowflake generating mechanism makes liquid carbon dioxide generate adiabatic expansions due to fast pressure reduction through narrow pores of a pin valve, changes part of the liquid carbon dioxide into solid snowflakes, and controls the size of carbon dioxide snowflake particles through the length of a transfer pipe, thus the carbon dioxide snowflake generating mechanism can be used as a source of the carbon dioxide snowflakes in the jetter; the thermal current generating mechanism uses an internal sleeve and an external sleeve with the carbon dioxide snowflakes in the internal sleeve and compressed hot air after heating in the external sleeve; and the control unit can control the flow and the pressure of the carbon dioxide snowflakes and the hot air.

Description

technical field [0001] The invention relates to a double-pipe reciprocating swinging spray washing device which can control the size of solid carbon dioxide particles and prevent pipe burst and condensed water, in particular to a combined spray head for pressurized gas (including solid and gas mixed) spray washing equipment. It can be used in a swinging manner, especially involving spraying and cleaning techniques of various forms of carbon dioxide. Background technique [0002] Because the traditional existing carbon dioxide spraying device generally has the shortcoming that the workpiece produces dew condensation water. Moreover, the traditional existing carbon dioxide snowflake production method, one is to use liquid carbon dioxide to pass through a pinhole to make the liquid carbon dioxide produce adiabatic expansion due to a rapid pressure drop (800psi to 0psi), so that part of the liquid carbon dioxide is converted into solid carbon dioxide. It can be used as the sour...

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Problems solved by technology

[0002] Due to the traditional existing carbon dioxide spraying device generally has the disadvantage of producing dew condensation water on the workpiece

Moreover, the traditional existing carbon dioxide snowflake production method, one is to use liquid carbon dioxide to pass through a pinhole to make the liquid carbon dioxide produce adiabatic expansion due to a rapid pressure drop (800psi to 0psi), so that part of the liquid carbon dioxide is converted into solid carbon dioxide. It can be used as the source of carbon dioxide snowflakes in the spray cleaning device, but generally the needle valve is used to generate pinholes to generate snowflakes, which is easy to cause damage to the valve body mechanism or easy plugging of the pipe due to excessive low temperature of the needle valve

[0003] In addition, in the past, the nozzles used with this type of spray washing / cleaning machine were mostly single-gun / single-tube fixed-point spray cleaning, which has the advantages of easy operation, high sensitivity, and concentrated spray cleaning force; the disadvantage is that the cleaning area is small, It can only be processed at a single point and cannot meet the requirements of quick cleaning

[0004] In addition, there is an air knife nozzle. Although it can meet the requirements of large-area rapid spray cleaning, the effect shown is still unavoidable. If a solid / gaseous mixed gas is used for spray cleaning, solid particles will appear. Uniform Major Defects

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