从空调定压方式浅析地埋换热系统超压泄露问题

ANALYSIS ON OVER-PRESSURE LEAKAGE OF UNDERGROUND HEAT EXCHANGE SYSTEM BY AIR-CONDITIONER PRESSURIZATION PATTERN

针对地源热泵系统设计不当和定压方式选择不当造成的超压泄漏问题,设置地源换热器定压方式为开式膨胀水箱定压,即静水柱定压。当冷热转换阀门出现泄漏,可通过开式膨胀水箱的排泄溢流作用保护地源换热器,从而避免超压泄漏事故的发生。因其压力恒定,自动补水,同时有超压排泄溢流的优点,安全可靠,尤其适用于高大建筑的地源换热器设计施工中。

Aim at over-pressure leakage in poor design and improper selection for the constant pressure mode in ground source heat pump system,set pressurization mode for ground-coupled heat exchanger to be open expansion water tank pressurization,that is,static water pressurization.When hot and cold conversion valves leak,ground source heat exchanger is protected by overflow discharge of open expansion water tank so as to avoid overpressure leak accident.Because pressure is constant,automatic fill water,and over-pressure drainage overflow,it is safe and reliable,especially for ground source heat exchanger in design and construction of tall building.