The performance of double-layer rubber sealing ring under the action of low temperature environment

Aiming at the sealing failure of a water quality monitoring system in low-temperature environment, double rubber O-ring structure was designed, and its performance low temperatures studied. Finite element software ANSYS constructed structure, change process standard temperature installation studied by two-dimensional axisymmetric model. The results show that equivalent strain stress an increasing trend during process. With effect medium pressure, maximum contact seal ring increases from 2.6285 MPa 20 ℃ to 2.6657 0 ℃. width decreases gradually with decrease temperature. initial compression rate increase, significantly. simulation double-layer still has good temperatures.