Study of differential pressure method for air leak detection based on tempretrue

The differential pressure method is widely used nowadays for air leak detection[1]. In this method, a master tank, which is leak-tight, a tested tank are simultaneously charged to a certain pressure and then closed off each other. If there is air leak in the tested tank, the air leak can be detected from the different pressure occurs between the two tanks. Since both tanks temperature is inconsistent in detection process will lead to changes in pressure affect the detection precision. Although, if the tested tank is leak-tight. This problem has become the major concern in this research. This paper obtained by simulation of temperature, thermal conductivity, container volume and other parameters on the impact of differential effects of the actual amount of leakage detection provides a theoretical basis.