Movable type sulfur hexafluoride and carbon tetrafluoride mixed gas quick recovery device

Abstract

The invention discloses a movable type sulfur hexafluoride and carbon tetrafluoride mixed gas quick recovery device which comprises a mixed gas recovery system, a mixed gas separation system, a refrigerating unit, a sulfur hexafluoride special compressing and charging system, a carbon tetrafluoride special compressing and charging system and a vacuum-pumping system. The movable type sulfur hexafluoride and carbon tetrafluoride mixed gas quick recovery device realizes functions of the field quick recovery of a mixed insulating gas, the simple separation of a mixed gas, the storage of a separated gas, and the like. A CF4 (carbon tetrafluoride) special high-pressure compressor and an SF6 (sulfur hexafluoride) liquid filling machine which are applied in a process can greatly reduce the volumes of storage containers. Thus, the movable type sulfur hexafluoride and carbon tetrafluoride mixed gas quick recovery device solves problems that a recovery velocity of a gas is slow and the quantity of the storage containers is large when mixed insulating electrical equipment is inspected and repaired; the inspection and repair efficiency of the mixed insulating electrical equipment is improved; furthermore, the separate storage of the mixed insulating gas is also beneficial to the purification and regeneration work of the mixed insulating gas.

Description

technical field [0001] The invention belongs to the technical field of maintenance of high-voltage switchgear with mixed insulating gas in low-temperature regions, and in particular relates to a mobile rapid recovery device for mixed gas of sulfur hexafluoride and carbon tetrafluoride. Background technique [0002] Sulfur hexafluoride (SF 6 ) gas is a gas with very stable chemical properties. As an excellent insulating and arc-extinguishing medium, it is widely used in various electrical equipment. To guarantee SF 6 Normal operation of electrical equipment, SF sealed inside the equipment 6 Gas needs to maintain a certain pressure, and SF 6 The operating characteristics of gases are significantly affected by changes in ambient temperature. In northern my country and some plateau areas, extreme low temperatures below -40°C often occur in winter. Under low temperature conditions, SF 6 SF in electrical equipment 6 The gas density will gradually decrease, part of the SF 6 ...

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Problems solved by technology

[0004] During the long-term operation of the equipment, due to the operating environment of the equipment, the quality of the equipment manufacturing, and the damage or aging of the original components, the electrical switch of the mixed insulating gas needs to be repaired by power outage, and the recovery and storage of the mixed gas during the maintenance has always been a problem that has plagued the maintenance personnel for a long time.

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