Investigation on the Saturated Vapor Pressure Characteristics of SF<sub>6</sub> Substitute Gases

doi:10.7652/xjtuxb201903022

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Investigation on the Saturated Vapor Pressure Characteristics of SF₆ Substitute Gases

更新时间：2025-07-09

- Investigation on the Saturated Vapor Pressure Characteristics of SF₆ Substitute Gases
- Vol. 53, Issue 3, Pages: 157-163(2019)
- 作者机构：
  
  1. 广东电网有限责任公司电力科学研究院,广州,510080
  2. 中国南方电网公司六氟化硫重点实验室,广州,510080
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201903022
  CLC： TM21
- Online First：10 March 2019，
  
  Published：2019
- 稿件说明：
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Investigation on the Saturated Vapor Pressure Characteristics of SF₆ Substitute Gases[J]. 2019, 53(3): 157-163. DOI: 10.7652/xjtuxb201903022.
DOI：

Investigation on the Saturated Vapor Pressure Characteristics of SF₆ Substitute Gases[J]. 2019, 53(3): 157-163. DOI: 10.7652/xjtuxb201903022. DOI：

摘要

针对许多SF

替代气体存在液化温度高、不能单独应用于电力设备的问题

提出了一种基于饱和蒸气压特性计算筛选适用于电力设备的SF

替代气体的种类和混合比例的方法。采用Antoine方程和气液平衡定律结合的方法来研究SF

替代气体的饱和蒸气压特性。针对目前研究较多的常规气体、PFN和PFK类气体、PFC类气体、HFO类气体、HFC类气体

分别对其中比较有代表性的几种气体的饱和蒸气压特性做了对比

并对其中比较有潜力的气体与缓冲气体CO

的混合气体的饱和蒸气压特性进行了分析。研究结果表明:HFC-125、1-C

、HFO-1234yf、C4-PFN、C5-PFK几种气体具有较好的应用前景

按照其与CO

的混合气体的饱和蒸气压从高到低排序

依次为SF

、HFC-125、1-C

、HFO-1234yf、C4-PFN、C5-PFK

当混合气中CO

体积分数为90%时

这几种混合气体在-25 ℃下的饱和蒸气压分别可以达到2.2、1.34、0.913、0.871、0.36、0.098 4 MPa。

Abstract

Aiming at the problem that many SF

substitute gases have high liquefaction temperature and thus cannot be applied to power equipment

a novel method based on the calculation of saturated vapor pressure characteristics was proposed to screen the type and mixture ratio of SF

substitute gases applied to power equipment. The Antoine equation was combined with the vapor-liquid equilibrium law to investigate the saturated vapor pressure characteristics of SF

substitute gases. Among the mostly stud

ied normal gases

suchas PFN and PFK gases

PFC gases

HFO gases

and HFC gases

the saturated vapor pressure characteristics of several representative gases

as well as the gas mixtures of some promising gases and CO

were calculated and compared. The results show that HFC-125

1-C

HFO-1234yf

C4-PFN and C5-PFK possess good application prospect. The saturated vapor pressure of these gases mixed with CO

is ranked as:SF

>HFC-125>1-C

>HFO-1234yf>C4-PFN>C5-PFK. These mixtures with a CO

volume fraction of 90% present the saturated vapor pressure of 2.2

1.34

0.913

0.871

0.36 and 0.098 4 MPa

respectively

at -25 ℃.

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Keywords

references

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Related Author

刘训标 1

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Related Institution

Department of Power Engineering, College of Chongqing Communication

⁰

Investigation on the Saturated Vapor Pressure Characteristics of SF6 Substitute Gases

DOI：10.7652/xjtuxb201903022

摘要

Abstract

关键词

Keywords

references

Investigation on the Saturated Vapor Pressure Characteristics of SF₆ Substitute Gases