全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

0.4’0.8MPa气压下二元混合气体SF6/N2和SF6/CO2露点温度计算

DOI: 10.13336/j.1003-6520.hve.2015.05.004, PP. 1446-1450

Keywords: SF6,混合气体,高气压,露点温度,汽液相平衡,PR-vdW方法

Full-Text   Cite this paper   Add to My Lib

Abstract:

金属封闭开关设备(gasinsulatedswitchgear,GIS)和气体绝缘输电线路(gasinsulatedtransmissionline,GIL)等高压电力设备多采用提升气压的办法来提高SF6混合气体的绝缘强度,而随着气压的升高,混合气体的露点温度随之上升,在一定条件下,甚至超过了GIS和GIL设备的适用范围。该研究采用Peng-Robinson(PR)状态方程结合vanderWaals混合规则(PR-vdW方法)分别对二元混合气体SF6/N2和SF6/CO2的汽液相平衡数据进行了计算,得到在0.4’0.8MPa气压下,不同配比的SF6混合气体的露点温度。结果显示对于目前使用的GIS和GIL设备,当气压分别为0.6、0.7和0.8MPa,建议SF6/N2混合气体运行在SF6气体占混合气体摩尔分数分别<0.84、<0.74和<0.66的情况下,SF6/CO2混合气体运行在SF6气体占混合气体摩尔分数分别<0.77、<0.60和<0.47的情况下。且在GIS和GIL设备中,SF6/N2混合气体的环境适用范围较SF6/CO2混合气体的更广。

References

[1]  邢卫军. c-C 4 F 8 /N 2 混合气体替代SF 6 气体用于电力设备的基础研究[D]. 北京:中国科学院,2011:27-28. XING Weijun. Basic study on c-C 4 F 8 /N 2 gas mixtures substituting using for SF 6 in electrical apparatus[D]. Beijing, China: Chinese Academy of Sciences, 2011: 27-28.
[2]  张刘春. SF 6 替代气体c-C 4 F 8 及其混合气体的绝缘性能研究[D]. 上海:上海交通大学,2007:77-79. ZHANG Liuchun. Study on insulation characteristics of c-C 4 F 8 and its gas mixtures substituting SF 6 [D]. Shanghai, China: Shanghai Jiao Tong University, 2007: 77-79.
[3]  董学强. 新型混合工质的汽液和汽液液相平衡研究[D]. 北京:中国科学院,2010:23-36. DONG Xueqiang. Vapor-liquid and vapor-liquid-liquid equilibria for the new mixed refrigerants[D]. Beijing, China: Chinese Academy of Sciences, 2010: 23-36.
[4]  Redlich O, Kwong J N S. On the thermodynamics of solutions. V. an equation of statefugacities of gaseous solutions[J]. Chemical Reviews, 1949, 44(1): 233-244.
[5]  Peng D Y, Robinson D B. A new two-constant equation of state[J]. Industrial and Engineering Chemistry Research Fundamentals, 1976, 15(1): 59-64.
[6]  李惠芬. SF 6 气体替代面临的诸多挑战[J]. 高电压技术,2000,26(3):50-51. LI Huifen. Many challenges to substitution for SF 6 [J]. High Voltage Engineering, 2000, 26(3): 50-51.
[7]  Watson R. Common themes for ecologists in global issues[J]. Journal of Applied Ecology, 1999, 36(1): 1-10.
[8]  Christophorou L G, Van Brunt R J. SF 6 /N 2 mixtures basic and HV insulation properties[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 1995, 2(5): 952-1003.
[9]  Christophorou L G, Olthoff J K, Van Brunt R J, et al . Sulfur hexafluoride and the electric power industry[J]. IEEE Electrical Insulation Magazine, 1997, 13(5): 20-24.
[10]  Malik N H, Qureshi A H. A review of electrical breakdown in mixtures of SF 6 and other gases[J]. IEEE Transactions on Electrical Insulation, 1979, 14(1): 1-13.
[11]  Hikita M, Ohtsuka S, Okabe S, et al . Insulation characteristics of gas mixtures including perfluorocarbongas[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2008, 15(4): 1015-1022.
[12]  周 辉,邱毓昌,仝永刚,等. N 2 -SF 6 混合气体的绝缘特性[J]. 高压电器,2003,39(5):13-15. ZHOU Hui, QIU Yuchang, TONG Yonggang, et al . Insulation characteristics of N 2 -SF 6 gas mixtures[J]. High Voltage Apparatus, 2003, 39(5): 13-15.
[13]  Yamada T, Ishida T, Hayakawa N, et al . Partial discharge and breakdown mechanisms in ultra-dilute SF 6 /N 2 gas mixtures[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2001, 8(1): 137-142.
[14]  Koch H, Hillers T. Second generation gas-insulated line[J]. Power Engineering Journal, 2002, 16(3): 111-116.
[15]  李鑫涛,林 莘,徐建源,等. 基于FEM-FCT法的均匀电场下SF 6 气体击穿特性[J]. 高电压技术,2014,40(10):3046-3053. LI Xintao, LIN Xin, XU Jianyuan, et al . Breakdown characteristics of SF 6 in uniform electric field using FEM-FCT[J]. High Voltage Engineering, 2014, 40(10): 3046-3053.
[16]  王圆圆,汲胜昌,李金宇,等. 多种试验条件下SF 6 放电及分解特性研究[J]. 高电压技术,2013,39(8):1952-1959. WANG Yuanyuan, JI Shengchang, LI Jinyu, et al . Investigations on discharge and decomposition characteristics of SF 6 under various experimental conditions[J]. High Voltage Engineering, 2013, 39(8): 1952-1959.
[17]  唐 炬,任晓龙,谭志红,等. 针-板缺陷模型下局部放电量与SF 6 分解组分的关联特性[J]. 高电压技术,2012,38(3):527-534. TANG Ju, REN Xiaolong, TAN Zhihong, et al . Correlation character between partial discharge quantity and SF 6 decomposition components under needle-plate defect model[J]. High Voltage Engineering, 2012, 38(3): 527-534.
[18]  厉 伟,林 莘. 混合气体绝缘特性的试验研究及理论分析[J]. 沈阳工业大学学报,2001,33(5):387-389. LI Wei, LIN Xin. Testing research and theory analysis of insulating characteristics[J]. Journal of Shenyang University of Technology, 2001, 33(5): 387-389.
[19]  肖登明,邱毓昌. SF 6 /N 2 和SF 6 /CO 2 的绝缘特性及其比较[J]. 高电压技术,1995,21(1):16-18. XIAO Dengming, QIU Yuchang. Insulating properties of SF 6 /N 2 and SF 6 /CO 2 and their comparison[J]. High Voltage Engineering, 1995, 21(1): 16-18.
[20]  Hermann K. Gas-insulated transmission lines(GIL)[M]. 1 st ed. State of New Jersey,USA: John Wiley &;
[21]  Sons Ltd, 2012: 329.
[22]  张晓星,周君杰,唐 炬,等. CF 3 I-CO 2 混合气体在针板电极下局部放电绝缘特性试验研究[J]. 电工技术学报,2013,28(1):36-42. ZHANG Xiaoxing, ZHOU Junjie, TANG Ju, et al . Experimental study of partial discharge insulating properties for CF 3 I-CO 2 mixtures under needle-plate electrode[J]. Transactions of China Electrotechnical Society, 2013, 28(1): 36-42.
[23]  邓云坤,肖登明,陈 炯. CF 3 I-N 2 混合气体作为SF 6 替代气体用于GIS/C-GIS的绝缘性能分析[J]. 高电压技术,2013,39(2):2288-2293. DENG Yunkun, XIAO Dengming, CHEN Jiong. Insulation performance of CF 3 I-N 2 gas mixtures as alternative for SF 6 in GIS/C-GIS[J]. High Voltage Engineering, 2013, 39(9): 2288-2293.
[24]  Katagiri H, Kasuya H, Mizoguchi H, et al . Investigation of the performance of CF 3 I gas as a possible substitute for SF 6 [J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2008, 15(5): 1424-1429.
[25]  Guder C, Wagner W. A reference equation of state for the thermodynamic properties of sulfur hexafluoride for temperatures from the melting line to 625 K and pressures up to 150 MPa[J]. Journal of Physical and Chemical Reference Data, 2009, 28(1): 40-41.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133