【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment【Daily Question】20201205
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True or False: A double-end mechanical seal refers to a sealing assembly that contains 2 pairs of friction pairs. (√) Please respond within three days to the daily question in the rotating equipment section.:victory: Rewards ranging from 5 to 15 points will be given for replies, with additional rewards for those who can provide detailed answers. All forum members are welcome to participate actively and help promote the development of the forum! ! !
Correct. Explanation: When a double-end face mechanical seal is in operation, the combined force resulting from fluid pressure (the pressure of the medium) and the elastic force of the elastic elements creates an appropriate specific pressure (compression force) on the end faces of the sealing rings. This pressure ensures that the two contacting end faces (the end faces of the moving ring and the stationary ring) fit tightly together, and a very thin layer of liquid film is maintained in the extremely small gap between these end faces, thereby achieving sealing.