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Full-automatic supercritical drying instrument

A supercritical drying, fully automatic technology, applied in the direction of drying gas arrangement, drying, dryer, etc., can solve the problems of long experimental period, difficult safety and low output of supercritical drying process, and achieve convenient drying process. Fast, time- and labor-cost savings, and improved cleanliness

Pending Publication Date: 2022-04-22
适安佳(北京)生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of full-automatic supercritical drying instrument, to solve the required experimental conditions proposed in the above-mentioned background technology such as high temperature, high pressure, fluid medium, safety and other problems that are difficult to realize and the usual supercritical drying process needs Problems with relatively long experiment period, low output and high cost

Method used

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  • Full-automatic supercritical drying instrument
  • Full-automatic supercritical drying instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1, such as figure 1 and 2 As shown, when drying a sample, the power is first turned on, and then the user puts the sample to be dried into the high-pressure sample cell 10, and at the same time adds the liquid solvent required to maintain the sample structure, closes the high-pressure sample cell cover and locks it effectively. Tight, and set the parameters required for the drying experiment on the touch software interface of the fully automatic touch LCD screen 24. After the setting is completed, directly click to run. At this time, the gas inside the supercritical fluid gas source 1 passes through the high-precision filter A2, Ultra-high-precision filter 3, liquid inlet high-pressure solenoid valve 4 and liquid inlet automatic fine-tuning valve 5, the liquid inlet automatic fine-tuning valve 5 can decompress the air flow to ensure the pressure in the high-pressure sample cell rises steadily and slowly, and then the air flow passes through the four-way joint 7...

Embodiment 2

[0038] Example 2, such as figure 1 and 2 As shown, when the air pressure temperature is high, the refrigeration module 11 and the heating module 12 start to control the temperature inside the high-pressure sample cell 10, so that the supercritical fluid reaches the temperature required for the supercritical state, and then the airflow passes through the high-precision filter B13 and the micro-flow adjustment module 14 enter the tee joint A15, at this time, the gas passes through the high-pressure solenoid valve A16, the electronic flow sensor 17, the exhaust through-plate interface 18 and the tee joint B23, and then is discharged outside or the laboratory fume hood. The liquid enters the designated anti-corrosion gas-liquid separation bottle 22 through the high-pressure solenoid valve B19, high-precision filter C20 and liquid discharge through-plate interface 21, and the anti-corrosion gas-liquid separation bottle 22 fully separates the residual gas in the liquid again, and th...

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Abstract

The invention discloses a full-automatic supercritical drying instrument which comprises a supercritical fluid gas source, a high-pressure sample pool and an anti-corrosion gas-liquid separation bottle, the output end of the supercritical fluid gas source is connected with a high-precision filter A, one side of the high-precision filter A is connected with an ultra-high-precision filter, and the other side of the high-precision filter A is connected with an ultra-high-precision filter. One side of the ultrahigh-precision filter is connected with a liquid inlet high-pressure electromagnetic valve, the output end of the liquid inlet high-pressure electromagnetic valve is connected with a liquid inlet automatic fine adjustment valve, and the output end of the liquid inlet automatic fine adjustment valve is connected with a four-way connector; under the mutual cooperation of the high-precision filter A, the ultrahigh-precision filter, the liquid inlet high-pressure electromagnetic valve and the liquid inlet automatic fine adjustment valve, airflow stably rises into the high-pressure sample pool, so that the air pressure in the high-pressure sample pool slowly rises; therefore, samples with fragile structures or high requirements are subjected to nondestructive drying and preparation, and the structures of the fragile samples are ensured to the greatest extent.

Description

technical field [0001] The invention relates to the technical field of dryers, in particular to a full-automatic supercritical dryer. Background technique [0002] Supercritical drying (SFD), that is, the process of removing solid materials or liquid solutions (usually water or replaced organic solvents) in solid materials or suspensions using supercritical fluids. In conventional drying methods, due to the The solvent has surface tension, which will cause the skeleton to collapse under ordinary drying conditions, and the product performance will be greatly reduced. The supercritical drying technology is to control the pressure and temperature to make the solvent reach a supercritical state, and there is no interface between gas and liquid. If it exists, there is no surface tension, and it will not cause the shrinkage and destruction of the sample structure until all the fluid is discharged from the sample structure, and finally a gas-filled material with an original space s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/00B01D46/00F26B21/00F26B21/10
CPCB01D1/0041B01D1/0082F26B21/003F26B21/10B01D46/0012
Inventor 邢明亮牟伟宏
Owner 适安佳(北京)生物科技有限公司
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