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Sulfur hexafluoride gas purification system

A sulfur hexafluoride gas and purification system technology, applied in the direction of sulfur compounds, inorganic chemistry, sulfur and halogen compounds, etc., can solve problems such as equipment accidents, affecting the service life of recovery devices, and corrosion of recovery devices, so as to improve efficiency and avoid Damage the recovery equipment and reduce the effect of the purification process

Active Publication Date: 2022-03-22
HENAN PINGGAO ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When repairing high-voltage switchgear and recovering gas, the acidic substances in the decomposition products of sulfur hexafluoride gas will corrode important parts such as pipelines and compressors in the recovery device; the moisture in the gas to be recovered will combine with the decomposition products under certain conditions Hydrolysis produces H 2 SO 4 , will also cause corrosion to the recovery device, thereby affecting the service life of the recovery device, and even causing serious equipment accidents

Method used

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  • Sulfur hexafluoride gas purification system

Examples

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Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1 of the sulfur hexafluoride gas purification system in the present invention: the sulfur hexafluoride gas purification system in the present invention can purify the sulfur hexafluoride gas containing impurities to obtain dry, pure and reusable Sulfur hexafluoride gas. When in use, the sulfur hexafluoride gas purification system is arranged between the gas-insulated electrical equipment filled with sulfur hexafluoride gas and the air extraction equipment. The air extraction equipment is equipped with an air pump, which can purify and recycle the electrical equipment. The sulfur hexafluoride gas is pumped into the purification system, and the sulfur hexafluoride gas is pumped into the extraction equipment after being purified by the purification system.

[0051] Such as figure 1 and figure 2 As shown, the sulfur hexafluoride gas purification system is provided with an air intake pipeline at the head end, and the air intake joint 01 is located at the front ...

Embodiment 2

[0080] Embodiment 2 of the sulfur hexafluoride gas purification system in the present invention: the difference from the above-mentioned embodiments is that the sulfur hexafluoride gas purification system in this embodiment is provided with an air intake pipeline, an alkali The washing unit, drying unit and gas outlet pipeline are no longer provided with branch pipelines, so that sulfur hexafluoride gas can only pass through the alkali cleaning unit and drying unit in sequence during purification, and cannot pass through the alkali cleaning unit and drying unit.

Embodiment 3

[0081] Embodiment 3 of the sulfur hexafluoride gas purification system in the present invention: the difference from the above embodiments is that the sulfur hexafluoride gas purification system in this embodiment is provided with branch pipelines, and the branch pipelines are only for six Sulfur fluoride gas passes over the non-alkaline cleaning line of the alkaline cleaning unit. In other embodiments, the branch pipeline may only be a purification-free pipeline for the sulfur hexafluoride gas to pass through the alkali cleaning unit and the drying unit at the same time.

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Abstract

The invention relates to a sulfur hexafluoride gas purification system, which comprises: an alkali cleaning unit filled with an alkaline medium for removing acidic components of the gas when the sulfur hexafluoride gas is fed in; a drying unit, wherein Filled with drying medium, it is used to remove the moisture of the gas when sulfur hexafluoride gas is introduced; the alkali cleaning unit is connected in series with the drying unit, and the front end of the drying unit communicates with the rear end of the alkali cleaning unit; the inlet connection of the alkali cleaning unit is useful As for the inlet pipeline connected with the gas-insulated electrical equipment, the outlet of the drying unit is connected with an outlet pipeline for connecting with the air extraction equipment. The alkaline medium in the washing unit can undergo an acid-base neutralization reaction with the acidic components in the sulfur hexafluoride gas. The contained moisture makes the sulfur hexafluoride gas pass through the purification of the alkali cleaning unit and the drying unit to obtain dry and pure sulfur hexafluoride gas.

Description

technical field [0001] The invention relates to a sulfur hexafluoride gas purification system. Background technique [0002] In the power industry, sulfur hexafluoride gas is a widely used insulating medium, and has been widely used in high-voltage electrical equipment such as gas-insulated combined electrical appliances (GIS), high-voltage circuit breakers, and transmission lines (GIL). After the high-voltage switchgear is used for a long time, the water content of sulfur hexafluoride gas in the high-voltage switchgear exceeds the standard. In addition, due to the action of the high-voltage electric field and the influence of factors such as equipment fault discharge, the sulfur hexafluoride gas will decompose and produce HF, SO 2 、H 2 S, SF 2 , S 2 f 2 , SF 4 , S 2 f 10 、SOF 2 , SO 2 f 2 , S 2 f 10 O and other toxic, harmful and highly corrosive decomposition components. When repairing high-voltage switchgear and recovering gas, the acidic substances in the de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B17/45B01D53/78B01D53/26
CPCC01B17/453B01D53/78B01D53/261
Inventor 刘朋亮田向阳张建飞张鹏飞王玉春刘焱涛刘天超谢东晨
Owner HENAN PINGGAO ELECTRIC
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