수중 모터펌프 베어링 유닛 열전달 해석
Heat Transfer Analysis of Bearing Unit in Submersible Motor Pump
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초록
The purpose of this paper is to find a proper cooling system of bearing unit in the submersible motor pump to extend a life time. To do this, heat transfer analysis of the submersible motor pump were performed using commercial CFD code ANSYS. In order to obtain the resonable heat transfer simulation results, we first set up mathematical model of heat source in the bearing system, and carried out heat transfer analysis with the model. As a results, new type bearing cap which had several ribs for cooling the bearing was proposed. Finally, through the comparison between experimental results of old and new model pump, we proofed that maximum bearing temperature of new model was about 10% lower than that of old model.
Abstract
The purpose of this paper is to find a proper cooling system of bearing unit in the submersible motor pump to extend a life time. To do this, heat transfer analysis of the submersible motor pump were performed using commercial CFD code ANSYS. In order to obtain the resonable heat transfer simulation results, we first set up mathematical model of heat source in the bearing system, and carried out heat transfer analysis with the model. As a results, new type bearing cap which had several ribs for cooling the bearing was proposed. Finally, through the comparison between experimental results of old and new model pump, we proofed that maximum bearing temperature of new model was about 10% lower than that of old model.
참고문헌 (5)
- 한상규, "펌프 베어링하우징에서 베어링과 오일의 과열 및 오일수명 예측", 설비공학 논문집, 16(5), pp.408~413 (2004), 대한설비공학회
- 문정환, "원심펌프 베어링 유닛의 열신뢰성 분석", 설비공학 논문집, 19(4), pp.313~320 (2007), 대한설비공학회
- "FAG Bearing Catalog (WL 41 520", 4 KA), 2002
- Choi. D. B, "Thermal Characteristics According to the Preload and Cooling Conditions for the High Frequency Motor Spindle with Grease Lubrication", 2004 Spring Conference of Korean Society of Machine Tool Engineer, pp.439~444 (2004)
- 임정숙, "30,000rpm 고속 주축의 열특성 분석", 한국정밀공학회지, 26(7), pp.120~126 (2009), 한국정밀공학회