Air tightness detection device for fuel cell stack

• Main Authors: CHEN JINRUI, YANG LEI, JI XIAOLONG, FAN MIN
• Format: Patent
• Language: Chinese; English
• Published: 28.04.2023
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The utility model discloses an air tightness detection device for a fuel cell stack, and the device comprises a medium output device which is provided with an output end; an inlet of the pressure regulating loop is connected with the output end, a pressure control piece is arranged on the pressure regulating loop, and the pressure control piece is suitable for controlling the medium pressure in the pressure regulating loop; and the number of the detection branches is multiple, the inlets of the multiple detection branches are communicated with the outlet of the pressure regulating loop, and the outlets of the multiple detection branches are suitable for being selectively communicated with pipelines corresponding to the fuel cell stack. According to the air tightness detection device designed by the utility model, the medium is input into the pressure regulating loop and the detection branch through the medium output device, whether the air tightness of the galvanic pile is good or not is judged according to t