Nuclear power plant SEBIM pilot operated safety valve water filling and air exhausting device and method

The invention belongs to the technical field of valve maintenance, and particularly relates to a nuclear power plant SEBIM pilot operated safety valve water filling and air exhausting device and method. According to the technical scheme, the water filling and air exhausting positions are changed, a discharging pipeline does not need to be disassembled, system media do not need to be used for conducting water filling and air exhausting on the discharging pipeline, the water filling and air exhausting quality can be effectively improved, the system media are all water entities, the valve action performance and the accuracy of opening and closing pressure are guaranteed, and safe and reliable operation of equipment is guaranteed. 本发明属于阀门检修技术领域，具体涉及一种核电厂SEBIM先导式安全阀充水排气装置及方法。本技术方案改变充水排气的位置，无需拆除下泄管线，无需利用系统介质对下泄管线进行充水排气，可有效提高充水排气质量，系统介质均为水实体，保证阀门动作性能和开启和关闭压力的准确性，保证设备的安全可靠运行。