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Ultrasound-enhanced supercritical or subcritical fluid extraction device

A subcritical fluid, ultrasonic enhancement technology, applied in solvent extraction, chemical instruments and methods, chemical/physical/physicochemical processes of energy application, etc., can solve the problem that high-power ultrasonic transducers cannot be installed, external ones are only applicable, etc. Problems, to achieve a good effect of strengthening the extraction effect, increasing the range, and high utilization rate of ultrasonic energy

Inactive Publication Date: 2009-11-18
刘云鹤 +1
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Problems solved by technology

The built-in type is to install the ultrasonic transducer directly in the high-pressure extraction kettle, so that the ultrasonic wave directly radiates into the extraction medium, which can reduce the loss of ultrasonic energy during the extraction process, and the utilization rate of ultrasonic energy is high, but its disadvantages are: due to the Due to size limitations, it is impossible to install high-power ultrasonic transducers
Therefore, the external type is usually only suitable for the laboratory

Method used

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  • Ultrasound-enhanced supercritical or subcritical fluid extraction device

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Embodiment Construction

[0009] From figure 1 It can be seen that the ultrasonically enhanced supercritical or subcritical fluid fluid extraction device of the present invention still has an extraction kettle 1, an ultrasonic transducer 2, and a horn 3, and the horn is installed at the end of the extraction kettle 1 with its node 31. Cover 11, and one end of the horn 3 extends into the extraction kettle 1, and the other end is connected to the end face of the ultrasonic transducer 2 outside the extraction kettle, and the tool head 4 is preferably processed at the lower end of the horn 3 to ensure that the ultrasonic Can be better distributed in the extraction kettle.

[0010] The inventor has made a device of the present invention with a volume of 1 liter, which can produce an ultrasonic wave with an output electric power of 1500W in its extraction kettle, which ensures sufficient ultrasonic power density in the extraction kettle, can make the extract cells broken, and produce the most A good strengt...

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Abstract

The invention provides an ultrasound-enhanced supercritical or subcritical fluid extraction device which comprises an extraction kettle, an ultrasonic transducer and an amplitude transformer, wherein the amplitude transformer is arranged on the extraction kettle at a node of the amplitude transformer, the ultrasonic transducer is positioned outside the extraction kettle, one end of the amplitude transformer is connected with the ultrasonic transducer, and the other end of the amplitude transformer extends into the extraction kettle. The invention has large ultrasonic power density and high ultrasonic energy utilization ratio and can be applied in the aspect of ultrasound-enhanced supercritical or subcritical fluid extraction and can also be applied in aspects of supercritical or subcritical fluid dying, water oxidation, fine particle preparation, and the like.

Description

technical field [0001] The invention relates to an ultrasonically enhanced supercritical fluid extraction device. Background technique [0002] Ultrasound-enhanced supercritical fluid extraction technology is a technology developed in the past two years. It is a technology that adds an ultrasonic field to supercritical fluid extraction to reduce extraction pressure and extraction temperature, shorten extraction time, and ultimately increase extraction rate. Breaking the cells of the extract by ultrasonic action can directly improve the extraction efficiency or speed up the reaction speed; making the cavitation test material (aluminum foil) produce cavities or cracks and other changes is a method of testing the ultrasonic effect, which is helpful for ultrasonically enhanced extraction efficiency. Mechanism studies. The above two points play a very important role in the research and production of ultrasonic-enhanced supercritical fluid extraction, and these two points are rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/00B01J19/10
Inventor 周鸣谦刘云鹤秦丹周鸣镝
Owner 刘云鹤
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