THERMAL ANALYSIS OF THE HEAD OF THE DIRECT ACTION SOLENOID VALVE

Hydraulic Control Rod Drive Technology(HCRDT) is a newly invented patent and Institute of Nuclear and New Energy Technology Tsinghua University owns HCRDT's independent intellectual property rights. The Integrated valve which is made up of three direct action solenoid valves is the key part of this technology, so the performance of the solenoid valve directly affects the function of the integrated valve and the HCRDT. On one hand, based on the conditions occurring in the operation of the Control Rod Hydraulic Drive System, the thermal characteristics of the head of the valve are analyzed by ANSYS. On the other hand, the numerical results are verified by the experiment. The results show that the temperature of the head of the solenoid valve increases with the current increasing firstly. Second, the highest temperature of the head is obtained so the current can be selected. Third, the coefficient of thermal conductivity of the head of the valve is obtained, which can be applied to other analysis of the solenoid valve.