Phase-distribution regularity and sealing performance of supercritical carbon dioxide dry gas seal

doi:10.11949/0438-1157.20200376

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Phase-distribution regularity and sealing performance of supercritical carbon dioxide dry gas seal
	Yan, Ruqi 2; Hong, Xianzhi 1; Bao, Xin 1; Xu, Jie 2; Ding, Xuexing 2
刊名	Huagong Xuebao/CIESC Journal
	2020-08-01
卷号	71 期号:8 页码:3681-3690
关键词	Carbon dioxide Carbon dioxide process Finite difference method Sealants Supercritical fluid extractionCondensation flow Groove parameters Operating condition Phase distribution Sealing performance Structure parameter Supercritical carbon dioxides Supercritical state
ISSN号	04381157
DOI	10.11949/0438-1157.20200376
英文摘要	Taking the supercritical carbon dioxide dry gas seal as the research object, the real gas effect and viscosity change of carbon dioxide are described by the Viri equation and Lucas equation. While considering the choked flow effect, the finite difference method was used to solve the Reynolds equation considering centrifugal inertia force effect and the energy control equation, and the influence of operating condition parameters and groove structure parameters on the phase distribution and sealing performance was analyzed and discussed. The research shows that in the flow process of S-CO2 from the inlet of the seal end face to the outlet, if the operating condition parameters are set properly, it will gradually change from supercritical state to gaseous state without liquid state. Low inlet pressure, inlet temperature and rotation speed will easily lead to potential condensation flow. Compared with the influence of operating condition parameters on the phase distribution, the influence of groove parameters on the phase distribution is small and almost negligible. Except that the opening force decreases with the increase of inlet temperature, it increases with the increase of inlet pressure, rotation speed, groove depth and spiral angle. The leakage rate decreases with the increase of inlet temperature and rotation speed, but it increases with the increase of inlet pressure, groove depth and spiral angle. These results provide some support for the further study of supercritical carbon dioxide dry gas seal. © 2020, Chemical Industry Press Co., Ltd. All right reserved.
语种	中文
出版者	Materials China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/132343]
专题	石油化工学院
作者单位	1.Chengdu Yitong Seal Co., Ltd., Chengdu; Sichuan; 610100, China 2.College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China;
推荐引用方式 GB/T 7714	Yan, Ruqi,Hong, Xianzhi,Bao, Xin,et al. Phase-distribution regularity and sealing performance of supercritical carbon dioxide dry gas seal[J]. Huagong Xuebao/CIESC Journal,2020,71(8):3681-3690.
APA	Yan, Ruqi,Hong, Xianzhi,Bao, Xin,Xu, Jie,&Ding, Xuexing.(2020).Phase-distribution regularity and sealing performance of supercritical carbon dioxide dry gas seal.Huagong Xuebao/CIESC Journal,71(8),3681-3690.
MLA	Yan, Ruqi,et al."Phase-distribution regularity and sealing performance of supercritical carbon dioxide dry gas seal".Huagong Xuebao/CIESC Journal 71.8(2020):3681-3690.