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Auxiliary seal ring for pump mechanical seal moving ring

An auxiliary seal ring and mechanical seal technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of springback, insignificant cushioning effect, unsatisfactory service life, increased cost, etc., to achieve good sealing and use The effect of long life and improved fit

Inactive Publication Date: 2016-05-11
ANHUI SANHUAN PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the service life of the sealing rings currently on the market is not ideal, and the rebound and cushioning effects are not significant, and they need to be replaced frequently, which increases the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Add 20 parts of epoxy resin and 15 parts of maleic anhydride to 75 parts of nitrile rubber, mix well, and then microwave at a frequency of 2450MHz and a power of 600W for 15 minutes. After the mixture is cooled to 70-80°C, add 8 parts Lanolin and 4 parts of nano zinc oxide are mixed uniformly to obtain material I;

[0017] (2) Fully mix 10 parts of stone powder and 6 parts of volcanic ash, heat it to 60-70°C and keep it for 10 minutes, then add 10 parts of microcrystalline cellulose and 8 parts of nano-silica powder, continue heating to 90-100°C and keep it for 10 minutes to get Material II;

[0018] (3) Add material II, 6 parts of epoxidized soybean oil, 3 parts of hemp stalk ash, 3 parts of calcium chloride, 3 parts of polyacrylamide and 1 part of vulcanizing agent into material I, mix well and add in the internal mixer, After the banbury rubber is obtained, it is vulcanized by a vulcanizing machine.

[0019] Preparation of stone powder: Add 20 parts of zeolite ...

Embodiment 2

[0021] (1) Add 25 parts of epoxy resin and 20 parts of maleic anhydride to 85 parts of nitrile rubber, mix well and then microwave at microwave frequency 2450MHz and power 600W for 15min, and add 6 parts after the mixture is cooled to 70-80°C Lanolin and 6 parts of nanometer zinc oxide are mixed uniformly to obtain material I;

[0022] (2) Fully mix 12 parts of stone powder and 8 parts of volcanic ash, heat it to 60-70°C and keep it for 10 minutes, then add 12 parts of microcrystalline cellulose and 5 parts of nano-silica micropowder, continue heating to 90-100°C and keep it for 10 minutes. Material II;

[0023] (3) Add material II, 8 parts of epoxidized soybean oil, 5 parts of hemp stalk ash, 4 parts of calcium chloride, 2 parts of polyacrylamide and 1 part of vulcanizing agent into material I, mix well and add in the internal mixer, After the banbury rubber is obtained, it is vulcanized by a vulcanizing machine.

[0024] Preparation of stone powder: add 25 parts of zeolite...

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PUM

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Abstract

The invention discloses an auxiliary seal ring for a pump mechanical seal moving ring, and relates to the technical field of rubber materials. The auxiliary seal ring is prepared from, by weight, 75-85 parts of nitrile rubber, 20-25 parts of epoxy resin, 15-20 parts of maleic anhydride, 10-15 parts of microcrystalline cellulose, 8-12 parts of stone powder, 6-11 parts of volcanic ash, 5-10 parts of nano silica powder, 5-10 parts of lanolin, 4-8 parts of nano-zinc oxide, 4-8 parts of epoxidized soybean oil, 3-6 parts of hemp stalk ash, 2-4 parts of calcium chloride, 2-4 parts of polyacrylamide and 1-2 parts of a vulcanizer. The auxiliary seal ring has the excellent springback and buffer effects, is good in seal property and long in service life and can fully cooperate with the moving ring to improve the mechanical seal property; in addition, the seal ring has the certain compensation and shock absorption effects on deflection of the seal end face and vibration of a shaft and can improve the attachment degree of the seal end face.

Description

Technical field: [0001] The invention relates to the technical field of rubber materials, in particular to an auxiliary seal ring for a pump mechanical seal dynamic ring. Background technique: [0002] A mechanical seal refers to a device that prevents fluid leakage by at least one pair of end faces perpendicular to the axis of rotation, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and the cooperation of the auxiliary seal to keep fit and slide relative to each other. The main components of the mechanical seal are the moving ring and the static ring, and their performance is directly related to the sealing effect and life. In addition, the moving ring and the static ring are used together with the auxiliary sealing ring of the moving ring and the auxiliary sealing ring of the static ring, which respectively constitute the seal between the moving ring and the shaft, and between the static ring and the gland. At t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L63/00C08L1/04C08K13/06C08K9/04C08K9/02C08K3/36C08K3/22C08K5/1515C08K5/09C08K3/34C09K3/10
CPCC08L9/02C08K2201/011C08L2205/035C09K3/10
Inventor 严超
Owner ANHUI SANHUAN PUMP
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