中药提取及浓缩工段温度控制算法研究
II
Abstract
As one of the core processes of the major Traditional Chinese pharmaceutical production，
the temperature control of the extraction process and the concentration process on the Extraction
tank plays a decisive role on quality and efficacy of the production. Temperature control of the
Modern Traditional Chinese medicine on the multifunctional extraction tank and concentration is
developing towards the direction of high precision, high stability and easy to apply, which comes
up with higher requirements to the design of the temperature control process on extraction tank
and concentration. In this paper, we make the design and field experiments, against the
temperature control on the extraction tanks and the concentration of a large manufacturer of
Traditional Chinese medicine, and make a deep study on the segments of temperature control
stroke which requests higher requirement.
First of all, the whole production process of Traditional Chinese medicine are introduced
and analyzed, according to the status of all major domestic pharmaceutical production lines. We
Analysis the core of the Traditional Chinese medicine production in major sectors according to
the experimental site, and introduce the working process and principle of the extraction tanks, as
well as how the host computer and lower computer program designed to make close contact with
workshop devices according to the actual situation. Meanwhile, the problems of extraction tank
temperature control link are described and analyzed.
The second, in this paper, the PID temperature control system of the process of the
Traditional extraction tank is introduced and analyzed, while the principle and the design ideas
of the PID temperature control system is proposed. The design ideas of the PID controller with
higher precision and stability is proposed and designed according to the fuzzy rule table which is
designed, against the traditional PID temperature controller. The variety of programs conducted
in-depth comparison and discussion，according to the field experiments.
Then, the key aspects, the stable temperature control of the stroke of the Temperature
control process, is focused on and analyzed, while the work requirements of the links is proposed.
The temperature-pressure curve and equation which meets the temperature stroke link large
domestic pharmaceutical production is designed. For the actual situation and requirements of the
certain experiments in the pharmaceutical company, a reasonable adjustment coefficient is
designed through several experiments. The designed concept is applied to the program of
