一种中药制药生产过程在线检测系统
By analyzing the heating temperature difference fluctuation sequence and the set of heat transfer pulse pairs, the problem of low concentration identification accuracy in the vacuum concentration process of traditional Chinese medicine was solved, enabling accurate estimation of the concentration of the medicinal liquid and accurate identification of the risk of wall adhesion, thus avoiding material coking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHAANXI UNIV OF CHINESE MEDICINE
- Filing Date
- 2026-03-31
- Publication Date
- 2026-07-17
AI Technical Summary
Existing online detection methods struggle to distinguish between actual concentration changes and overheating errors caused by rheological thermal resistance during the vacuum concentration of traditional Chinese medicine extracts. This leads to reduced accuracy in recognizing the concentration state, making it impossible to accurately identify the risk of adhesion to the walls, which in turn causes material coking.
By acquiring the difference fluctuations between the heater inlet temperature sequence and the main liquid temperature sequence of the concentration tank, the heating temperature difference fluctuation sequence is extracted, the pulse signal characteristics are analyzed, effective heat conduction is screened, the heat transfer pulse pair set is obtained, the stability broadening ratio and heat transfer resistance index are calculated, and the concentration boiling point value of the solute is retrieved by combining the measured temperature, so as to achieve accurate decision-making on the evaporation state.
It effectively eliminates temperature disturbances caused by bubble bursting and localized boiling, improves the accuracy of drug concentration identification, accurately identifies the risk of wall adhesion, and avoids material charring.
Smart Images
Figure CN121933567B_ABST