Korean Journal of Food Science and Technology (한국식품과학회지)
- Volume 22 Issue 4
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- Pages.479-485
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- 1990
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- 0367-6293(pISSN)
Manufacture of Control and Data Acquisition System of Centrifugal Thin Film Evaporator(Centri-Therm, CT-1B) by Computer
컴퓨터를 이용한 원심식 박막증발기의 제어 및 자료 수집 시스템의 제작
- Park, Noh-Hyun (Korea Food Research Institute) ;
- Kim, Byeong-Sam (Korea Food Research Institute) ;
- Park, Moo-Hyun (Korea Food Research Institute) ;
- Han, Bong-Ho (Dept. of Food Sci. and Tech., National Fisheries University of Pusan) ;
- Bae, Tae-Jin (Dept. of Food Sci. and Tech., Yosu National Fisheries College)
- Published : 1990.08.01
Abstract
For the automation of a evaporation process, computer based evaporation system was built and applied to acquisition of the process variables with an centrifugal thin film evaporator(Centri-Therm, CT-1B). Controls of the process conditions were performed by computer system for pressure, feeding rate, steam, evaporation temperature and flow rate of cooling water. The data acquisitions were also performed by computer system for the changes in the concentration and temperature readings for steam, evaporation and cooling water at the both inlet and outlet. The control and the acquisition variables were collected through the interface device and analyzed by programs using the PASCAL language. To control the feeding rate during the concentration process, inverter was used. The cooling water for the vapor condensation was controlled by the valve controller and should be supplied with the flow rate of 125 kg/h. The maximum vapor condensation rate was 41.7kg/h at the feeding rate of 125 kg/h.
증발 농축공정중 각종 운전 조건의 제어 및 데이터 수집을 자동으로 하기 위하여 제어 및 데이터 수집 부위에 각종 조절기와 센서를 부착하여 컴퓨터 프로그램에 의하여 공정이 진행되도록 하였다. 증발 농축 장치는 원심식 박막증발기인 Centri-Therm