Anti-scaling dynamical-sealing and backpressure parking sealing system

Abstract

The invention discloses an anti-scaling dynamical-sealing and backpressure parking sealing system which comprises a sealing box body, wherein the two sides of the sealing box body are symmetrically connected to water inlet sections; an auxiliary impeller is arranged between the sealing box body and each water inlet section; a mechanical-sealing sleeve is arranged inside each auxiliary impeller; a planar mechanical-sealing dynamic ring and a planar mechanical-sealing static ring are separately arranged on one mechanical-sealing sleeve; an inclined-plane mechanical-sealing dynamic ring and an inclined-plane mechanical-sealing static ring are separately arranged on the other mechanical-sealing sleeve; piston mechanical-sealing covers are symmetrically arranged inside the sealing box body; and a joint of the sealing box body and each piston mechanical-sealing cover is provided with an O-shaped ring. The anti-scaling dynamical-sealing and backpressure parking sealing system has effects of not causing sailing failure under a working state and sealing failure under a parking state due to inlet pressure changes, can prevent scales and crystallized substances from being attached at sealing points, can greatly prolong the service life of a seal, and avoids sealing unreliability during working and parking. The anti-scaling dynamical-sealing and backpressure parking sealing system can truly achieve zero leakage.

Description

technical field [0001] The invention relates to the technical field of pump equipment, in particular to an anti-scaling dynamic sealing plus back pressure parking sealing system. Background technique [0002] Pump equipment always has shaft seal problems when it is running or stopping. Generally, packing seals, mechanical seals or other seals are used. The packing seals have incomplete sealing, and the service life of mechanical seals is short. Generally speaking, they cannot be solved fundamentally. Sealing problem. Conventional auxiliary impeller seals can solve the sealing problem when the pump is running. Parking seals are often mechanical seals, packings, and springs, etc. These seals are often not thorough, especially in harsh environments such as those that are prone to crystallization and scaling. Conventional seals are more likely to fail when exposed to medium. Contents of the invention [0003] The object of the present invention is to provide an anti-fouling ...

AI Technical Summary

Problems solved by technology

[0002] Pump equipment always has shaft seal problems when it is running or stopping. Generally, packing seals, mechanical seals or other seals are used. The packing seals have incomplete sealing, and the service life of mechanical seals is short. Generally speaking, they cannot be solved fundamentally. sealing problem

Conventional auxiliary impeller seals can solve the sealing problem when the pump is running. Parking seals are often mechanical seals, packings, and springs, etc. These seals are often not thorough, especially in harsh environments such as those that are prone to crystallization and scaling. Conventional seals are more prone to failure when media

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