【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20201014
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A mechanical seal is also known as a ( ) seal. A. Floating ring B. End face C. Maze D. Screw Answer: B. The daily quiz activity for the rotating equipment section has been restarted.:victory: Replies will earn rewards ranging from 5 to 15 points; please answer within three days. All forum members are welcome to participate actively and support the development of the forum! ! !
B. End face analysis: A mechanical seal is a shaft sealing device for rotating machinery. Since the drive shaft passes through both the inside and outside of the equipment, there is a circumferential gap between the shaft and the equipment; the medium inside the equipment leaks out through this gap. If the pressure inside the equipment is lower than atmospheric pressure, air leaks into the equipment. Therefore, a shaft seal mechanism is necessary to prevent leakage. A mechanical seal, also known as a face seal, is defined in relevant standards as: \"a device that prevents fluid leakage, consisting of at least one pair of faces perpendicular to the axis of rotation, which remain in close contact and slide relative to each other under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism, along with the assistance of auxiliary seals.\"