EXPERIMENTAL INVESTIGATION OF CONTROL VALVES AND WEIGHING CELLS FOR TECHNOLOGICAL PROCESS OF INFUSION SOLUTIONS DOSING

Abstract

The expediency of developing and using an experimental setup for investigating drives of control pinch valves and weighing cells during the reconstruction of technological lines for dosing infusion solutions was proved. The results of the development of experimental setup are presented. The results of the improvement of the drive of the pinch valve are also presented, and its investigation was carried out on the developed setup. According to the research results, it was confirmed that the improvements the valve made it possible to reduce the time of full opening of the valve to a value less than 1.0 seconds. In this way, the suitability of the improved pinch valves for the modernization of the WDM 8002 technological line was confirmed. The investigation of the improved weighing cell with the proposed SP8C3 weight transmitter was carried out. It was determined that the root mean square deviation of the measurement results with this weight cell in the static mode does not exceed 0.13%, in the dynamic mode during the filling of bottles - does not exceed 0.54%. The use of the developed setup makes it possible to choose the optimal technical means according to the price-quality ratio and effectively modernize the technological lines of dosing infusion solutions in the production of medicines with a short stopping the production.