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Dual-channel radially distributed scalable mechanical seal

A mechanical sealing device, distributed technology, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of inappropriate structural layout, large axial size, etc., and achieve the effect of solving the tension of axial installation size

Active Publication Date: 2021-02-12
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, mechanical seals for cooling were arranged up and down. The radial dimension of this layout was small, but the axial dimension was large. For equipment with tight axial dimensions, this structural layout is not suitable.

Method used

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  • Dual-channel radially distributed scalable mechanical seal
  • Dual-channel radially distributed scalable mechanical seal
  • Dual-channel radially distributed scalable mechanical seal

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "set with", "sleeved / connected", "connected", etc. should be understood in a broad sense, such as " Connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an inte...

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Abstract

The invention discloses a dual-channel radially distributed expandable mechanical seal device, which relates to the technical field of mechanical dynamic seals, including a shell, an inner ring, a ceramic seal ring and a flexible dynamic seal mechanism. A pair of liquid inlet and return expansion ports are arranged on the device, which are distributed at 180° with the original liquid inlet and return ports, so as to reduce the flow resistance and expand the flow capacity of the device, and the flow capacity is significantly increased. It will rotate, and the relative position of the inlet and return ports will change periodically. Therefore, in order to reduce the fluctuation of liquid flow during the rotation process; at the same time, there is a flexible dynamic seal structure inside the device. In order to improve the reliability and life of the flexible dynamic seal, it is necessary to select a suitable compound In addition to the flexible sealing form and installation structure, ceramic materials are sprayed on the surface of the matching metal parts to improve its hardness and wear resistance, and a set of dual-channel radial distribution systems that can adapt to harsh environments such as vibration, shock, and wide temperature range is provided. Expandable mechanical seal.

Description

technical field [0001] The invention relates to the technical field of mechanical dynamic seals, in particular to a dual-channel radially distributed expandable mechanical seal device. 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, compensation mechanism (or magnetic force), and the cooperation of auxiliary seals to keep fit and slide relative to each other. Mechanical dynamic seals using ceramic sealing rings have the advantages of good sealing, long life, and strong corrosion resistance, and have been widely and maturely used in nuclear power, petrochemical, and shipbuilding industries. Under the environmental conditions of temperature shock, wide temperature range and mechanical vibration shock, ceramic seals are vulnerable to mechanical damage. The product design is developing towards high integration, miniaturizati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/34
CPCF16J15/3404F16J15/3452F16J15/3476F16J15/3496
Inventor 张幼安胡长明魏忠良刘进张正兵
Owner CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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