Efficient SF6 gas processing tool

Abstract

The invention discloses an efficient SF6 gas processing tool. The efficient SF6 gas processing tool comprises a platy fixed base, a public connecting pipe installed on the fixed base and at least four joints used for connecting SF6 equipment air chambers and vacuumizers, wherein the two ends of the public connecting pipe are closed, at least four connectors are arranged on a pipe body of the public connecting pipe, and the joints are correspondingly connected to the connectors. With the adoption of the efficient SF6 gas processing tool, as a plurality of vacuumizers are connected with the efficient SF6 gas processing tool, air recycling and vacuum pumping are simultaneously carried out on a plurality of air chambers, and working efficiency is greatly improved; in addition, the plurality of air chambers can be inflated by virtue of a plurality of bottles of SF6 or N2 gas, and thus inflation efficiency is improved; structure is simple, manufacturing cost is low, time for processing SF6 during SF6 equipment overhaul and repairing work can be greatly shortened, manpower and material source consumption is saved, and power failure time of equipment is shortened.

Description

technical field [0001] The present invention relates to a kind of SF 6 The utility model relates to an auxiliary tool for a combined electric appliance (GIS), in particular to a high-efficiency SF6 gas recovery, vacuum pumping and gas charging tool. Background technique [0002] With the rapid development of the global power system and the increasing requirements for the reliability of power system operation, SF 6 Due to its superior insulation and arc extinguishing properties, the gas has been widely used in various electrical equipment such as combined electrical appliances, circuit breakers, current transformers, and voltage transformers in power systems, making SF 6 Devices keep multiplying. SF 6 With its superior technical performance such as small footprint, high insulation strength, and long maintenance cycle, the equipment is increasingly occupying the market and becoming the mainstream of high-voltage electrical appliances. [0003] However, SF 6 There are stil...

AI Technical Summary

Problems solved by technology

[0003] However, SF 6 There are still the following defects in the field work of equipment such as troubleshooting, overhaul and overhaul: ⑴SF 6 The gas charging port of the equipment is on the mechanism box. When performing gas treatment on site, it is often necessary to replace the matching connecting pipe joints. After repeated disassembly and assembly, the gas pipe head is very easy to wear, resulting in a decrease in the sealing degree and increasing the possibility of air leakage and water infiltration (2) When recovering gas and vacuumizing, a vacuum pumping machine alone 6 One air chamber of the equipment is operated, and the work efficiency is very low; (3) When inflating, a single bottle of SF 6 or N 2 The gas inflates an air chamber alone, and the inflation efficiency is low; (4) Especially in the overhaul and repair work of the GIS air chamber, SF 6 The processing time is too long; ⑸The existing gas recovery, vacuuming, and inflation operations also cause a lot of manpower and material resources consumption, which increases the power outage time of the equipment; ⑹The existing SF 6 When the device is inflated, the SF 6 The connection between the equipment and the inflatable joint is tight. After opening the gas cylinder and the decompression valve, loosen the nut or loosen and fasten the two bolts on the connecting flange. After the gas is exhausted, tighten it before inflating. The airtightness and waterproofness of the inflatable joint Poor, resulting in inability to continue to work in wet outdoors, and poor work reliability

[0004] In summary, SF 6 The on-site working time and maintenance process of the equipment are affected by changes in the on-site environment, gas recovery, vacuuming and inflation efficiency, resulting in low work efficiency, long equipment power outages, and affecting power supply quality. This has become the current SF 6 One of the difficult technical problems in equipment maintenance

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