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Q型干式无屏蔽套潜水电泵是一种采用新颖“滚动液膜机械密封”(以下简称“新颖密封”,已获中国专利局专利,专利号为8510 71 44)的潜水电泵。新颖密封装置在密封原理上完全不同于现有的常规机械密封。一般密封靠动环与静环的贴合面在密封力的作用下直接贴合而阻流防漏,工作时,动环与静环的贴合表面作相对滑动,能耗大,泄漏大,寿命短。新颖密封在动环与静环之间有若干滚珠,工作时滚珠在动、静环上的环形滚道上滚动,变动、静环之间的相对滑动为滚珠与动静环的相对滚动。滚珠用保护架磨片来保持其相对位置。在密封力的作用下,动环、滚珠、静环互相压紧、在动、静环之间的保持架磨片的两平行端面各与动、静环的一
Q-type dry unshielded submersible pump is a kind of submersible pump using a novel “rolling liquid membrane mechanical seal” (hereinafter referred to as “new seal”, has been patented by the Chinese Patent Office, patent No. 8510 71 44). The novel sealing device differs fundamentally in its sealing principle from the existing conventional mechanical seals. Generally sealed contact ring and the static contact surface of the sealing force in the direct fit and block leak, work, the moving ring and the stationary ring of the mating surface for relative sliding, energy consumption, leakage, Short life expectancy. Novel seal in the moving ring and the static ring between the number of balls, the ball in motion, static ring rolling on the ring, change, the relative movement between the static ring for the relative movement of the ball rolling ring. Ball with protective frame grinding to maintain its relative position. Under the action of the sealing force, the moving ring, the ball and the static ring are pressed against each other, and each of two parallel end surfaces of the cage grinding piece between the moving ring and the stationary ring is connected with one