Separation system and separation method for sulfur hexafluoride and carbon tetrafluoride

A separation system and carbon tetrafluoride technology, applied in the field of mixed insulating gas purification, can solve problems such as the difficulty in realizing the recycling of mixed insulating gas, and achieve the effect of easy preliminary purification and improved service life

Pending Publication Date: 2018-02-23
ELECTRIC POWER RES INST OF EAST INNER MONGOLIA ELECTRIC POWER +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no mature purification and separation technology for the mixed insulating gas at home and abroad, and it is difficult to realize the recycling of the mixed insulating gas.

Method used

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  • Separation system and separation method for sulfur hexafluoride and carbon tetrafluoride
  • Separation system and separation method for sulfur hexafluoride and carbon tetrafluoride
  • Separation system and separation method for sulfur hexafluoride and carbon tetrafluoride

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Embodiment Construction

[0051] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0052] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0053] Such as figure 1 with image 3 As shown, a separation system of sulfur hexafluoride and carbon tetraflu...

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Abstract

The invention discloses a separation system and a separation method for sulfur hexafluoride and carbon tetrafluoride. The separation system comprises a reversing unit, a buffering unit, a treatment unit and a cryogenic separation unit, wherein the reversing unit is a reversing device, and is used for clamping a steel bottle and rotating the steel bottle to reverse the steel bottle such that a liquefied mixture in the steel bottle can flow out successfully; the buffering unit comprises an evaporator and a first buffering tank; an inlet of the evaporator is connected with an outlet of the steelbottle; an outlet of the evaporator is connected with an inlet of the first buffering tank; the treatment unit comprises an adsorption tower; an inlet of the adsorption tower is connected with an outlet of the first buffering tank to adsorb and remove impurities from the mixture; the cryogenic separation unit comprises a heat exchanger and a low temperature rectifying tower; an outlet of the adsorption tower is connected with a hot medium inlet of the heat exchanger; a cold medium outlet of the heat exchanger is connected with an inlet of the low temperature rectifying tower.

Description

technical field [0001] The invention belongs to the field of purification of mixed insulating gases, and in particular relates to a separation system and method for sulfur hexafluoride and carbon tetrafluoride. Background technique [0002] Currently, due to SF 6 The gas has excellent insulation and arc extinguishing properties, and is widely used in circuit breakers. However, at a cold ambient temperature, SF under a certain pressure 6 The gas will liquefy, making SF 6 As the pressure or density of the gas decreases, its insulation and arc extinguishing performance will decrease accordingly. After research, it was found that in SF 6 Mixing a certain proportion of other inert gases in the gas can effectively solve this problem, among which SF is used more 6 and CF 4 The mixed gas is used as the insulating gas. This insulating gas has been widely used in SF 6 Gas circuit breakers, GIS, charging cables, gas-filled transmission pipelines and other high-voltage electrical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D5/00B01D53/00B01D53/02B01D53/26C01B32/10C01B17/45
CPCB01D53/002B01D53/02B01D53/261C01B17/453B01D2253/104B01D2253/102B01D2253/10B01D2256/26Y02P20/151Y02P70/10
Inventor 来文青孟杰王永红钱文晓苏镇西马凤翔李建国汪宪忠赫树开
Owner ELECTRIC POWER RES INST OF EAST INNER MONGOLIA ELECTRIC POWER
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