Water-saving mechanical seal device

A mechanical sealing device and top-mounted technology, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of leakage, large interference, scratches on the water retaining cover, etc., to increase transmission efficiency, excellent compensation performance, The effect of easy installation

Inactive Publication Date: 2016-07-20
张昌盛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When installing, because the interference is too large, the inner edge of the water retaining cover is often scratched by the shaft sleeve, and leakage occurs immediately after the cooling water is introduced.

Method used

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  • Water-saving mechanical seal device
  • Water-saving mechanical seal device
  • Water-saving mechanical seal device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The structure of the present invention is illustrated in conjunction with the accompanying drawings.

[0011] A water-saving mechanical seal, such as figure 1 with figure 2 As shown, the static ring 2 is installed on the lower part of the static ring seat 1, and the static ring O-ring 3 is installed on the static ring 2. The static ring 2 is made of graphite material, and the static ring seat 1 is sealed by the O-ring interference fit. . The moving ring assembly 4 is installed at the corresponding position inside the static ring 2. The structure of the moving ring assembly is: a spring 22 is installed in the groove of the moving ring 21, the pin 24 on the outside of the spring is connected with the transmission ring 26, and the moving ring 21 is equipped with a moving ring. O-ring 23, transmission screw 25 is housed on the transmission ring. The surface of the friction pair of the moving ring in the moving ring assembly 4 can be selected from surface spraying or su...

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PUM

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Abstract

Disclosed is a water-saving mechanical seal device. A static ring is arranged in a static ring seat, a static ring seal ring is arranged on the static ring, a moving ring assembly is arranged at the corresponding position of the inner side of the static ring, a limiting plate is arranged on the static ring, and a gland pad is arranged on the outer side on the static ring seat; an integration structure is adopted, mounting is facilitated, and meanwhile the compression amount of a main seal of a medium side is adjusted; and a pin is riveted on a transmission ring of the moving ring assembly, and the guide and anti-rotation effects are achieved. A push ring used in a normal mechanical seal is not needed, transmission resistance is reduced, the transmission efficiency is improved, the axial mounting size of the mechanical seal is reduced, following performance of the mechanical seal is better, and the compensation performance is more excellent. A protection cover is formed on the outer circle of the transmission ring, a moving ring and a spring in the moving ring assembly are included inwards, and the phenomenon that overmuch dust in atmosphere falls in the moving ring assembly, the spring is blocked and lacks elasticity, or dust is adhered to a shaft sleeve, slippage of a moving ring O-shaped ring on the shaft sleeve is affected, and consequently, a water-saving mechanical seal fails is avoided.

Description

technical field [0001] The invention relates to a mechanical sealing device. Background technique [0002] High-temperature pumps in the petrochemical industry are equipped with cooling water flushing pipelines, and a water retaining cover is installed on the gland of the mechanical seal to prevent cooling water from leaking. Because the water retaining cover is basically made of rubber material, it is not resistant to wear, and the water retaining cover and the shaft sleeve are generally an interference fit. After the equipment has been in operation for a period of time, the radial gap between the water retaining cover and the shaft sleeve becomes larger due to wear, resulting in an increase in the cooling water leakage. Leaking cooling water is often thrown along the axis of rotation, spraying everywhere. Especially for the leakage of some medium-side mechanical seals, the cooling water will be polluted, and the cooling water will leak into the atmosphere, causing seriou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/34
Inventor 张昌盛
Owner 张昌盛
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