Unlock instant, AI-driven research and patent intelligence for your innovation.

The deep groove ring drives the pressure-type end face mechanical seal structure

A kind of end face mechanical seal and mechanical seal technology, applied in the direction of engine seal, mechanical equipment, engine components, etc., can solve the problem of high leakage rate of dynamic pressure type end face seal, reduce leakage, increase end face damping effect, and improve reliability Effect

Active Publication Date: 2016-12-07
自贡市川密机械密封件有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem of high leakage rate of the existing dynamic pressure type end face seal, the present invention provides a medium that can be applied to various conditions, utilizes the throttling effect of the deep link flow groove structure, enhances the damping effect of the seal end face, and reduces the leakage rate Non-contact mechanical face seal structure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • The deep groove ring drives the pressure-type end face mechanical seal structure
  • The deep groove ring drives the pressure-type end face mechanical seal structure
  • The deep groove ring drives the pressure-type end face mechanical seal structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] see Figure 1-3 : A deep link flow groove dynamic pressure type end face mechanical seal structure, including the dynamic ring 7 and the static ring 6 of the mechanical seal, one side of the end faces of the dynamic ring 7 and the static ring 6 is the high pressure side, that is, the upstream, and the other side is the low pressure side The side is downstream. On one of the end faces of the moving ring 7 or the static ring 6, spiral grooves 1 and deep ring flow grooves 3 are arranged in sequence from the high pressure side to the low pressure side according to the rotation center. The spiral groove 1 is arranged upstream of the end face, and the deep ring The flow groove 3 is composed of more than two annular deep grooves 4 densely arranged in the radial direction, and is arranged at the downstream end of the spiral groove 1. A smooth first annular sealing dam 2...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A dynamic pressure type end face mechanical seal structure of a deep link flow groove, including a dynamic ring and a static ring of the mechanical seal. One of the end faces of the dynamic ring or the static ring is provided with dynamic pressure grooves and deep link flow grooves symmetrically distributed according to the center of rotation, the dynamic pressure grooves are arranged upstream of the end face, and the deep link flow grooves are arranged at the downstream end of the dynamic pressure grooves. The deep ring flow groove is composed of more than two annular deep grooves arranged concentrically and densely in the radial direction. A smooth first annular sealing dam is set between the dynamic pressure groove and the deep ring flow groove, and a smooth surface is set between the deep ring flow groove and the inner diameter of the sealing ring. Planar second annular seal dam.

Description

(1) Technical field [0001] The invention belongs to the technical field of end face mechanical seal structure design, in particular to a shaft end seal device suitable for rotating shafts of various compressors, pumps and kettles, and in particular to a dynamic pressure type end face mechanical seal structure of a deep link flow groove. (2) Background technology [0002] Mechanical seals are the main means to prevent shaft end leakage of rotary fluid machinery. With the continuous expansion of operating conditions in industries such as petroleum, petrochemical and nuclear power generation, mechanical seals are required to have higher stability, reliability and longer service life. And strictly control the leakage of medium fluid. The existing non-contact mechanical seals with spiral groove and other groove end faces have been widely used in shaft end sealing devices of centrifugal compressors and pump shafts due to their characteristics of non-contact and low wear. However,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/16
Inventor 白少先丁少鹏彭旭东李纪云
Owner 自贡市川密机械密封件有限公司