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본 연구에서는 목표압력 2,000 bar에서 사용 가능한 스플형 초고압 압력 비례 제어 밸브를 개발하기 위하여 증압기를 통해 압력용기 내부에 2,000 bar의 압력을 인가한 상태에서, 입력전압을 증가시키면서 각 구간에서의 감압 특성을 확인하였다. 초고압 압력 비례 제어 밸브는 전기적신호(0~5V)를 받아 구동하는 고토크 서보모터를 이용하여 스풀을 직선 변위시키고, 스풀의 위치에 따라 통과되는 유량이 변화하도록 하여 감압 구간까지의 오차범위를 줄여 재현성을 향상 시키고자 하였다. 실험 결과 입력 전압 1V부터 5V까지의 감압 시간별 압력 측정값과 각각의 오차범위는 평균 0.3% 수준이었으며, 최대 0.54% 이하로 나타났다. 이 결과는 본 연구에서 제작된 스플형 초고압 압력 비례 제어 밸브의 감압 특성이 매우 우수한 것으로 판단되고 2,000 bar의 초고압 상태에서 본 밸브의 사용이 가능할 것으로 확인되었다.
In this study, to verify the characteristics of the operation of the spool type ultra high pressure proportional control valve available at the target pressure of 2,000 bar, it examined the characteristics of decompression in each section that applying a pressure of 2,000 bar inside the pressure vessel through increase the input voltage to the valve. The ultra-high pressure proportional control valve displaced the spool in a straight line using a high torque servo motor driven by receiving an electrical signal (0~5V), it improved reproducibility by reducing the error range to the decompression section by changing the flow rate that passes depending on the location of the spool. As a result of the experiment, the pressure measured value by decompression time from the input voltage of 1V to 5V and the error range of each of them were 0.3% average level and maximum error range was to be 0.54% or less. This results show that the spool type ultra high pressure proportional control valve manufactured in this study has excellent decompression characteristics and it is decided that the use of this valve will be easy at an ultra high pressure state of 2,000 bar.
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- Publisher :The Society of Convergence Knowledge
- Publisher(Ko) :융복합지식학회
- Journal Title :The Society of Convergence Knowledge Transactions
- Journal Title(Ko) :융복합지식학회논문지
- Volume : 10
- No :1
- Pages :49-58
- DOI :https://doi.org/10.22716/sckt.2022.10.1.006
The Society of Convergence Knowledge Transactions
