Control system for preventing liquid mixing and liquid leakage during parallel operation of multiple units of closed type cold liquid system

The system comprises a controller, a pressure increasing and releasing system and a liquid storage tank system, the liquid storage tank system is in two-way communication with all the cold liquid units in the cold liquid system through the pressure increasing and releasing system, and the controller controls connection and disconnection of the liquid storage tank system, the cold liquid units and the controller; according to the method, the controller obtains waterway pressure data in the cold liquid unit, and the pressure increasing and releasing process is controlled based on the waterway pressure data. The method can solve the technical difficulty of liquid mixing and liquid leakage during parallel operation of multiple units of the closed cold liquid system, is wide in application range, and can be widely applied to the closed cold liquid system. 本发明公开了一种闭式冷液系统多机组并机时防串液漏液控制系统及方法，系统包括控制器、增泄压系统、储液箱系统，储液箱系统通过增泄压系统与冷液系统中各个冷液机组分别双向连通，控制器控制三者之间通断；本发明方法中控制器获取冷液机组内水路压力数据，基于水路压力数据控制增泄压过程。1、本发明可以解决闭式冷液系统多机组并机时串液漏液的