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Friction pair

A friction pair and friction coefficient technology, applied in the field of friction pairs, can solve the problem that the leakage rate of mechanical seals cannot be further reduced, and achieve the effect of reducing thickness and leakage rate

Pending Publication Date: 2021-01-22
SEC KSB NUCLEAR PUMPS & VALVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a friction pair to solve the problem that the leakage rate of the mechanical seal cannot be further reduced under the premise of ensuring that the sealing surface does not wear a large area due to the fact that the thickness of the sealing liquid film cannot be further reduced in the prior art The problem

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Embodiment Construction

[0020] A frictional side proposed by the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and all use imprecise scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In order to make the objects, features and advantages of the present invention more comprehensible, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. condition, so it has ...

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Abstract

The invention discloses a friction pair which comprises a first sealing ring and a second sealing ring, and the first sealing ring is provided with a first friction plane. The second sealing ring is provided with a second friction plane. The first sealing ring and the second sealing ring are overlapped, so that the first friction plane and the second friction plane are in contact with each other.The first friction plane and the second friction plane are respectively provided with adhesive layers, so that the first sealing ring and the second sealing ring reach an ultra-smooth working state ina wet environment. The thickness of a sealing liquid film is reduced, and the leakage rate of the friction pair is reduced.

Description

technical field [0001] The invention relates to the field of mechanical seals, in particular to a friction pair. Background technique [0002] Mechanical seals belong to the category of rotary shaft seals, and are widely used in many industries such as chemical industry, petroleum, textile, transportation, electric power, and agriculture. [0003] However, during the operation of the mechanical seal, the thickness of the sealing liquid film is different according to the working state of the mechanical seal: the thickness of the sealing liquid film of the common non-contact sealing surface is about 10 μm, and the thickness of the sealing liquid film of the contact type seal is about 10 μm. The thickness is usually less than 1 μm. Usually, if the thickness of the sealing liquid film is too large, the sealing effect will be poor and the leakage will be large; if the thickness of the sealing liquid film is too small, the contact between the sealing surfaces will occur and wear ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/40F16J15/26
CPCF16J15/26F16J15/40
Inventor 金乐朱向东王岩崔怀明金刚黄炳臣
Owner SEC KSB NUCLEAR PUMPS & VALVES