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Self-sealing turning-connection device for GIS or GIL

A switching device and self-sealing technology, applied in valve devices, lift valves, engine components, etc., can solve the problem of inability to prevent metal dust from entering the interior of the equipment, and achieve the effect of ensuring safe and reliable operation

Pending Publication Date: 2021-01-08
JIANGSU NARI HENGCHI ELECRICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the existing defects, provide a self-sealing transfer device for GIS or GIL, and solve the problem that the current self-sealing transfer device cannot prevent metal powder from entering the interior of the equipment

Method used

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  • Self-sealing turning-connection device for GIS or GIL
  • Self-sealing turning-connection device for GIS or GIL

Examples

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Embodiment Construction

[0016] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0017] like figure 1 , 2 As shown, a self-sealing transfer device for GIS or GIL includes a valve seat 1, a valve core is arranged inside the valve seat 1, the valve core includes a mandrel 2, the lower end of the mandrel 2 is connected with a thimble 3, and the upper end of the thimble 3 is outside The side is provided with a conical boss 4 with the conical surface facing downward, and the middle part of the inner surface of the valve seat 1 is provided with an upward conical retaining ring 5 matching the conical boss 4; the inner surface of the valve seat 1 is provided with a valve The core fixing part 6, the core shaft 2 runs through the valve core fixing part 6...

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PUM

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Abstract

The invention belongs to the field of turning-connection devices, and provides a self-sealing turning-connection device for GIS or GIL. The self-sealing turning-connection device for GIS or GIL comprises a valve seat; a valve element is arranged in the valve seat and comprises a mandrel; an ejector pin is connected to the lower end of the mandrel; a conical boss with a downward conical surface isarranged on the outer side face of the upper end of the ejector pin, and a conical check ring, matched with the conical boss, with an upward conical surface is arranged in the middle of the inner sideface of the valve seat; a valve element fixing part is arranged on the upper portion of the inner side face of the valve seat, the mandrel penetrates through the valve element fixing part, and a spring is arranged between the lower end face of the valve element fixing part and the ejector pin; and at least one sealing ring fixing groove is formed in the lower portion of the inner side face of thevalve seat, and an O-shaped sealing ring is arranged in each sealing ring fixing groove. According to the self-sealing turning-connection device for GIS or GIL, metal powder scraps generated in the butt joint process can be prevented from entering equipment, and safe and reliable operation of the equipment is guaranteed.

Description

technical field [0001] The invention relates to an adapter device, in particular to a self-sealing adapter device for GIS or GIL. Background technique [0002] GIS (Gas Insulated Metal Enclosed Combined Appliance) and GIL (Gas Insulated Metal Enclosed Transmission Line) are both high-voltage, high-current power transmission equipment that use SF6 or other gas insulation, and the shell and conductor are coaxially arranged. [0003] Self-sealing adapters are currently widely used on GIS / GIL equipment for vacuuming and inflation operations. The self-sealing adapter device and the self-sealing valve on the GIS / GIL are connected through threads, and metal powder chips will be generated during the thread tightening process. If no countermeasures are taken, the metal powder chips will be sucked into the interior of the GIS / GIL along with the airflow. During the movement, it may be adsorbed on the pot insulator or other weak electric field locations, causing internal breakdown of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/36F16K1/46
CPCF16K1/00F16K1/36F16K1/46
Inventor 酆元许信一万方华谷广其王通德
Owner JIANGSU NARI HENGCHI ELECRICAL EQUIP CO LTD