Gas supplementing adaptor connector, gas supplementing system and gas supplementing method for sulfur hexafluoride equipment

Abstract

The invention discloses a gas supplementing adaptor connector for sulfur hexafluoride equipment. The gas supplementing adaptor connector for the sulfur hexafluoride equipment comprises a connector body, an operation through hole is formed in the connector body, a connecting nut which is in threaded connection with a self-sealing check valve of the sulfur hexafluoride equipment is arranged at one end of the operation through hole, a sealing hole is formed in the other end of the operation through hole, a sealing fixing structure is arranged in the sealing hole, a gas supplementing hole which makes the operation through hole and outside of the connector body communicate is formed between the sealing fixing structure and a connecting piece, and an operation rod which moves in the axial direction of the operation through hole is arranged inside the operation through hole. The invention further discloses a gas supplementing system for the sulfur hexafluoride equipment and a gas supplementing method for the sulfur hexafluoride equipment. The gas supplementing adaptor connector, the gas supplementing system and the gas supplementing method for the sulfur hexafluoride equipment have the advantages that the structure is simple, the design is reasonable, a connector ejector pin has certain mobility, errors and damage caused by frequent machining and assembly of the connector ejector pinare reduced, the function of performing moisture removing before gas supplementing is achieved, moisture removing countdown also can be displayed, and the using effect is good.

Description

technical field [0001] The invention relates to the technical field of gas replenishment for sulfur hexafluoride equipment used in substations, in particular to a gas replenishment conversion joint for sulfur hexafluoride equipment, a gas replenishment system and a gas replenishment method thereof. Background technique [0002] Sulfur hexafluoride (SF6) is a colorless, odorless, stable chemical substance that is gaseous at normal temperature and pressure. Because it has very good insulation and arc extinguishing capabilities, it is used as an insulating medium and arc extinguishing medium It is widely used in power equipment. [0003] In recent years, with the rapid development of my country's electric power industry and the improvement of technical equipment, a large number of SF6 electrical equipment has been put into operation. SF6 gas has been widely used in power systems due to its excellent insulation and arc extinguishing properties, and has almost become a medium The...

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Problems solved by technology

[0005] The following problems exist in the gas replenishment operation: 1. When the sulfur hexafluoride equipment is in use, when it is necessary to replenish the gas, usually the gas storage tank is directly connected to the sulfur hexafluoride equipment through the pipeline, and the six The self-sealing spool of the sulfur fluoride equipment supplies air to the sulfur hexafluoride equipment directly through the gas storage tank, and the sealing effect cannot be guaranteed

2. It is impossible to dehumidify the pipeline before replenishing the gas, which will cause the moisture in the pipeline to enter the sulfur hexafluoride equipment, affecting the safety of the sulfur hexafluoride equipment

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