Metal ion removal membrane integrity detection device and detection method

The invention discloses a metal ion removal membrane integrity detection device and a detection method. The detection device is divided into two paths, namely a gas pipeline and a liquid pipeline. The membrane pool assembly is respectively connected with an air compressor and a detection system through gas pipelines; a water storage tank of the detection device is connected with a pressure pump and then connected with a membrane pool assembly through a liquid pipeline, and the membrane pool assembly is connected with a vacuum pump through a liquid pipeline and finally connected to a detection system. And a gas flowmeter and a liquid flowmeter are respectively arranged at the outlets of the ventilation pipeline and the liquid pipeline of the membrane tank assembly. According to the invention, the integrity of the metal ion removal membrane can be verified by adopting three modes of positive pressure gas detection, negative pressure water detection and positive pressure water detection. According to the detecti