솔레노이드 조작 방향제어밸브의 개발에 관한 연구 = A Study on the Development of Solenoid Actuated

다국어 초록 (Multilingual Abstract)

The paper deals with development of a solenoid actuated directional control valves with maximum operating pressure 35MPa and flow rate 100ℓ/min. The solenoid valves developed here are used a safety-related equipment in a combined power plant which automatically controls the fuel supply system.
The summarization of this study is as follows.
1. The two-position four-port solenoid actuated directional control valve and two-position three-port ON/OFF valve are developed, and used to control and supply the fuel in combined power plants. The solenoid valves are pilot-operated spool valves and main spool is connected to position sensing instrument LVDT.
2. In order to analyse of the static and dynamic characteristics of solenoid valves, the modeling and simulation are carried out by using AMESim software. The solenoid valves are consisted of two subsystems; a solenoid and a spool assembly. These two subsystems are modeled separately. The simulation model has developed which accurately predicts the spool displacement of a solenoid valve to a voltage input. Although these have been modelled using empirical and measured data, the physical structure of the solenoid valves are accurately represented. This has the advantage that model can easily be modified to take account of changes in valve design.
in valves are
3. The valve block, spool, solenoid and solenoid guide are designed, manufactured and evaluated the solenoid valves by making use of simulation results.
4. The performance test of solenoid actuated directional control valves are as follows : specification inspection, pressure inspection, measurement inspection, latching current test, attractive force test, adsorptive force test, temperature-rise test, insulation resistance test, withstand voltage test, humidity resistance test, custody cold resistance test, custody thermal resistance test, terminal strength test, durability test, frequency response test and ETC. Through catalogical test same as above carried out as follow : solenoid and valve were operated with design specifications, the design, production, test and technology of solenoid actuated directional control valve were achieved for fuel supply of electricity safety system of combined power plants, it was accumulated know-how of technique, it was achieved infrastructure expansion of associated industries and domestically producing inducement of main composition equipments.

목차 (Table of Contents)

• Ⅰ. 서론 1
• 1. 연구배경 1
• 2. 연구 내용 및 목적 2
• Ⅱ. 솔레노이드 밸브의 모델링과 시뮬레이션 3
• 2.1 복합발전소용 솔레노이드 밸브의 구동 원리 3
• 2.2 솔레노이드 밸브의 모델링과 시뮬레이션 6
• 2.2.1 솔레노이드 밸브의 주요 설계인자 계측 6
• 2.2.2 솔레노이드 밸브의 모델링 9
• 2.2.3 시뮬레이션 결과 분석 10
• 2.2.4 주요 파라미터의 변경에 따른 시뮬레이션 16
• Ⅲ. 솔레노이드 밸브의 제작 및 성능실험 21
• 3.1 밸브 블록 21
• 3.2 스풀 22
• 3.3 솔레노이드 및 솔레노이드 가이드 제작 23
• 3.4 솔레노이드 밸브의 성능실험 24
• 3.4.1 성능실험 및 모델링의 개요 24
• 3.4.2 밸브의 성능 실험 24
• 3.4.3 밸브의 성능실험 결과 24
• Ⅳ. 솔레노이드 밸브의 신뢰성 평가 31
• 4.1 실험개요 31
• 4.2 솔레노이드 밸브 실험 및 검사 32
• 4.2.1 검사 항목 32
• 4.2.2 압력 검사 32
• 4.2.3 성능 검사(스텝응답 특성 실험) 33
• 4.3 솔레노이드 밸브 성능검사 방법 및 결과 38
• 4.3.1 동작 실험 38
• 4.3.2 소비전력 및 유지전류 실험 40
• 4.3.3 흡인력 및 잔류 흡착력 실험 43
• 4.3.4 온도상승실험 44
• 4.3.5 절연저항실험 및 내전압 실험 44
• 4.3.6 내습성실험 49
• 4.3.7 보관내한성실험 50
• 4.3.8 보관내열성실험 50
• 4.3.9 단자강도실험 51
• 4.3.10 내구성실험 51
• 4.3.11 주파수 응답특성 실험 52
• 4.4 솔레노이드 밸브 성능검사 결과 요약 56
• Ⅴ. 결 론 59
• 참고 문헌 61
• Abstract 63