Apparatus and method for enhanced degassing through combination of ultrasonic waves and negative pressure

A negative pressure and ultrasonic technology, applied in separation methods, chemical instruments and methods, and liquid degassing, etc., can solve the problems of unreasonable design of degassing devices and poor degassing effect, and improve the degassing efficiency of liquids and improve the efficiency of degassing. Pinhole defects, the effect of improving the effectiveness of degassing

Inactive Publication Date: 2018-12-18
CHONGQING MEDICAL UNIVERSITY
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  • Claims
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Problems solved by technology

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a device and method for ultrasonically combined negative pressure enhanced degassing, which is used to solve the unreasonable design of the degassing device and the poor degassing effect in the prior art And other issues

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  • Apparatus and method for enhanced degassing through combination of ultrasonic waves and negative pressure

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[0029] The following describes the implementation of the present invention through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0030] It should be noted that the process equipment or devices not specifically noted in the following examples all adopt conventional equipment or devices in the field; all pressure values ​​and ranges refer to absolute pressures.

[0031] In addition, it should be understood that one or more method steps mentioned in the present invention do not exclude that other method steps may exist before and after the combined steps or other method step...

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Abstract

The invention provides an apparatus and method for enhanced degassing through a combination of ultrasonic waves and negative pressure. The apparatus comprises a vacuum tank; the vacuum tank is internally provided with an ultrasonic energy transducer; and the vacuum tank communicates with a vacuum pump via an exhausting pipeline. According to the invention, the advantages of ultrasonic cavitation degassing and negative-pressure degassing are combined, so the degassing efficiency of liquid and degassing effectiveness are effectively improved.

Description

Technical field [0001] The present invention relates to the field of degassing devices, in particular to a device and method for enhanced degassing with ultrasound combined with negative pressure. Background technique [0002] In the ultrasonic field, the gas dissolved in the liquid forms cavitation bubbles. Under the action of ultrasonic vibration, the sound field of the bubbles converges into large bubbles, and they rise to the surface of the liquid under the force of ultrasonic radiation. Ultrasonic degassing has a better treatment effect on liquids with less viscosity, and is widely used for degassing molten metals, glass, etc. to reduce voids formed during solidification. Chang Yong et al. in "The influence of melt treatment method on ultrasonic degassing of pure aluminum ingots (Journal of Materials and Metallurgy, Vol. 6, Issue 1, March 2007)" Among them, after ultrasonic treatment of the metal melt, the degassing efficiency of the melt is greatly improved, which is about...

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Application Information

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IPC IPC(8): B01D19/00
CPCB01D19/0078
Inventor 郭成斌李发琪
Owner CHONGQING MEDICAL UNIVERSITY
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