Mechanical sealing device for high-viscosity medium

A mechanical seal device and high-viscosity technology, which is applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of poor operating conditions at seals, reduced service life of sealing components, and difficult sealing problems, so as to reduce equipment maintenance man-hours and cost, increase the service life, improve the effect of operating conditions

Inactive Publication Date: 2007-08-22
合肥华升泵阀股份有限公司
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Problems solved by technology

[0002] In the prior art, mechanical seals for high-viscosity media, due to the existence of high-viscosity and liquids containing impurities, sealing problems are always a problem. The prominent problems are the coking and entanglement of the liquid on the sealing end surface, and the operation of the seal. Harsh conditions reduce the service life of sealing components

Method used

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  • Mechanical sealing device for high-viscosity medium

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Embodiment Construction

[0009] The mechanical seal device for high-viscosity medium disclosed by the present invention includes a moving ring 10 and a static ring 20, one of the end faces of one of them is arranged in a knife-edge shape, and the end face and the static ring 20 are formed between the moving ring 10 and the static ring 20. The sealing fit of the cutting edge is shown in Figure 1. The cooperation between the moving ring 10 and the static ring 20 is designed as a seal in the form of matching between the end face and the cutting edge, which can actually form a sealing fit in the form of line contact, so that the end face of the mechanical seal can generate a large end face specific pressure and can be easily cut off. The operating conditions of the seal are effectively improved due to the coking and entanglement of the high-viscosity liquid on the seal face.

[0010] The ideal cutting edge angle θ is 10°<θ<80°, and the preferred cutting edge angle θ is 45°<θ<75°. When θ is 06°, the stress...

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Abstract

The present invention relates to a rotating shaft end face sealing device for hydraulic machine containing various high-viscosity fluids and impurities. It is characterized by that one of moving ring and static ring is made into the form with cutting edge, and between the moving ring and static ring a seal-fit of end face and cutting edge is formed, so that it can make the mechanical sealing end face produced large end face specific pressure, a high-pressure can be formed on the sealing end face, therefore its sealing operation condition can be improved.

Description

technical field [0001] The invention relates to the end face sealing of rotating shafts of various high-viscosity and impurity-containing fluid machines. Background technique [0002] In the prior art, mechanical seals for high-viscosity media, due to the existence of high-viscosity and liquids containing impurities, sealing problems are always a problem. The prominent problems are the coking and entanglement of the liquid on the sealing end surface, and the operation of the seal. Harsh conditions reduce the service life of sealing components. Contents of the invention [0003] The purpose of the present invention is to provide a mechanical seal device for high-viscosity media, which is used for sealing between moving pairs in high-viscosity and impurity-containing liquids, and cuts off coking and entanglement formed on the sealing end surface due to high-viscosity liquids, Improve the operating conditions of the seal. [0004] In order to achieve the above-mentioned pur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/16
Inventor 何玉杰石海峡柴立平李强胡敬宁巫建波
Owner 合肥华升泵阀股份有限公司
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