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Separating and purifying system for sulfur hexafluoride and carbon tetrafluoride

A technology of sulfur hexafluoride and carbon tetrafluoride, which is applied in the field of separation and purification, and gas recovery, can solve the problems that do not involve CF4 separation and purification, and achieve the effect of complete functions and simple operation

Active Publication Date: 2013-07-24
HENAN RELATIONS +3
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, most of the similar equipment on the market at this stage is about the purification and purification of sulfur hexafluoride gas, and has not yet involved CF 4 Related equipment for separation and purification

Method used

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  • Separating and purifying system for sulfur hexafluoride and carbon tetrafluoride

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Embodiment Construction

[0020] like figure 1 As shown, the separation and purification system of sulfur hexafluoride and carbon tetrafluoride of the present invention includes a mixed gas recovery pipeline, and the mixed gas recovery pipeline is respectively connected with a circulation purification pipeline, a sulfur hexafluoride purification pipeline and tetrafluoride Carbon purification lines.

[0021] The mixed gas recovery pipeline includes a recovery port self-sealing joint 2, a first solenoid valve V2, an air cooler 3, a molecular sieve 4, a first manual normally open valve C1, and a first compressor 5, which are connected in sequence through the first high-pressure pipe 1 , air cooler 3 bypass, first one-way valve 6, first cold heat exchanger 7, second solenoid valve V9, third solenoid valve V8, second manual normally open valve C2 and sulfur hexafluoride purification tank 8. The first cold and heat exchanger 7 is connected to the first refrigerator 9 through the fourth solenoid valve D1; th...

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Abstract

The invention discloses a separating and purifying system for sulfur hexafluoride and carbon tetrafluoride. The system comprises a mixed gas recovering pipeline which is respectively connected with a circulating purifying pipeline, a sulfur hexafluoride purifying pipeline and a carbon tetrafluoride purifying pipeline. The system can be used for overcoming the defect that marketed sulfur hexafluoride gas recovering and purifying devices cannot separate and purify carbon tetrafluoride gas, not only separating and purifying sulfur hexafluoride and carbon tetrafluoride respectively but also integrating recovery, respective separation and purification and re-filling of gases, and has the characteristics of complete function, simplicity in operation, economy and practicality and the like.

Description

technical field [0001] The invention belongs to the technical field of gas recovery, separation and purification, and in particular relates to a separation and purification system for sulfur hexafluoride and carbon tetrafluoride. Background technique [0002] Since sulfur hexafluoride (SF 6 ) gas has excellent insulation and arc extinguishing properties, and is widely used in high-voltage switchgear. However, at a cold ambient temperature (such as the outdoor temperature in Harbin, Heilongjiang, which reaches minus 40°C in winter), the SF6 gas under a certain pressure will be liquefied (SF 6 The gas-liquid critical temperature of the gas is -50°C), which will cause a decrease in pressure or density, and its insulation and arc extinguishing properties will also decrease accordingly. This situation is common in the power grid system in Northeast my country. [0003] Therefore, SF is generally used in the high cold and low temperature areas of our country. 6 / carbon tetraf...

Claims

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Application Information

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IPC IPC(8): C01B17/45C07C19/08B01D53/00
CPCY02P20/151
Inventor 李建国汪献忠蔡巍李国兴
Owner HENAN RELATIONS
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