Leakage detection system for PAO test of high efficiency filter

• Main Authors: YIN XIAOPING, SUN LIUFEI
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2023
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The utility model discloses a leak detection system for a PAO test of a high-efficiency filter, which comprises a PAO generator and a fogging pipe, and is characterized by further comprising an interface valve mechanism, the interface valve mechanism is arranged on the air inlet side of a fan of the high-efficiency filter and comprises a valve cavity communicated with an air bellow, a valve and a valve cover for isolating the valve cavity from the outside, and the valve cover is arranged on the air inlet side of the fan of the high-efficiency filter. One end of the valve is fixed below the valve cover through a hinge, the other end of the valve is a movable opening, the valve abuts against the lower portion of the valve cover through a pressure spring, an inlet is formed in the valve cover, and an output port of the fogging pipe penetrates through the inlet to abut against the valve, so that the output port rotates towards one side to obtain a valve cavity opening state. And the input end of the fogging pipe