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Device and method for controlling macroporous resin liquid level by automatic instrument

A technology of macroporous resin and instrumentation, which is applied in the field of traditional Chinese medicine pharmaceutical control, can solve the problems of not being able to achieve the adsorption effect and accurately control the liquid level of macroporous resin, so as to ensure automation and continuity, powerful logic computing ability, and accurate Achieved effect

Pending Publication Date: 2018-07-17
苏州浙远自动化工程技术有限公司
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  • Description
  • Claims
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Problems solved by technology

The macroporous resin adsorption technology is an important process when separating and extracting the effective components of traditional Chinese medicine. However, since the macroporous resin will lose water when exposed to the air, the adsorption effect cannot be achieved, so the liquid level control of the macroporous resin is particularly important. At present In the field of automatic control, it is impossible to accurately control the liquid level of macroporous resin

Method used

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  • Device and method for controlling macroporous resin liquid level by automatic instrument
  • Device and method for controlling macroporous resin liquid level by automatic instrument

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Embodiment 1

[0022] see figure 1 , The present invention relates to a device for controlling the liquid level of macroporous resin by an automatic instrument, comprising a resin column 5, a liquid medicine inlet valve 1, a cleaning liquid inlet valve 2, an eluent inlet valve 3, a liquid level switch 4, a regulating valve 6, Liquid flow meter 7 and controller 8. Among them, the resin column 5 is a DN400 resin column; the medicine solution inlet valve 1, the cleaning solution inlet valve 2 and the eluent inlet valve 3 are pneumatic valves, and the medicine solution, cleaning solution and eluent entering the resin column pass through their respective pipelines in sequence and valves, must not be mixed, in the present embodiment, the cleaning liquid is selected from drinking water, and the eluent is selected from ethanol; the liquid level switch 4 is a float type liquid level switch; the regulating valve 6 is a pneumatic regulating valve; the liquid flow meter 7 is a rotameter ; The controlle...

Embodiment 2

[0025] In the process of automatically controlling the liquid level of the macroporous resin, the controller 8 timed the two outlet times of the liquid inlet in the resin column 5 from the high level to the low level, that is, the signal measurement reaction time of the liquid outlet flowmeter 7 and the liquid level switch 4’s signal triggers the reaction time, comparing the two time data, it is found that under certain liquid density and temperature conditions, the data coincidence is good, which shows that the performance of the liquid level switch 4 is relatively stable and accurate and reliable, further, because There are uncertainties in the response time of the liquid level switch 4 and the response value under different flow rate ranges. In order to further confirm the reliability and accuracy of the liquid level switch, the response time of the liquid level switch 4 is detected at different flow rates, in which the resin There is a difference of 38L between the high and...

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Abstract

The invention discloses a device and method for controlling a macroporous resin liquid level by an automatic instrument. The device comprises a resin column, a liquid medicine inlet valve, a cleaningliquid inlet valve, an eluent inlet valve, a liquid level switch, a liquid discharge flow meter, a regulating valve and a controller; wherein the liquid discharge flow meter and the regulating valve are disposed on the same pipeline, the liquid medicine inlet valve, the cleaning liquid inlet valve, the eluent inlet valve, the liquid level switch, the liquid discharge flow meter and the regulatingvalve are all electrically connected with the controller. The device and method solve a problem that the macroporous resin liquid level cannot be accurately controlled in the current Chinese medicinepharmaceutical process, can automatically and accurately realize the liquid level control process of the macroporous resin adsorption process, thereby ensuring the automation and continuity of the production process, and improving the stability and product quality of the macroporous resin adsorption process of traditional Chinese medicine.

Description

technical field [0001] The invention relates to the field of traditional Chinese medicine pharmaceutical control, in particular to a device and method for controlling the liquid level of macroporous resin by an automatic instrument. Background technique [0002] Macroporous resin, an organic polymer copolymer with a macroporous structure, generally white spherical particles, has screening properties due to its porous structure, and has adsorption properties through surface adsorption, surface electrical properties, or hydrogen bond formation , is a commonly used adsorbent. Macroporous resin adsorption technology uses macroporous resin as an adsorbent, and uses its selective adsorption and screening of different components to achieve the purpose of separating and purifying a certain or a certain type of organic compound. At present, macroporous resin adsorption technology is widely used in the fields of extraction and separation of effective components of traditional Chinese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D7/06
CPCG05D7/0635
Inventor 陈勇刘雪松宋波项晓明
Owner 苏州浙远自动化工程技术有限公司
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