Experimental study of self-locking seal structure based on full ocean depth sediment pressure retaining sampler

doi:10.1016/j.apor.2023.103767

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海工程技术部 > 深潜技术研究室

	Experimental study of self-locking seal structure based on full ocean depth sediment pressure retaining sampler
	Liu, Guangping 2; Jin, Yongping 2; Peng, Youduo 2; Tang, Wenbo 1; Wan, Buyan 2
刊名	APPLIED OCEAN RESEARCH
	2023-12-01
卷号	141 页码:9
关键词	Deep-sea sediments High pressure Self-locking seal Pressure retention
ISSN号	0141-1187
DOI	10.1016/j.apor.2023.103767
通讯作者	Jin, Yongping(jinyongping@hnust.edu.cn)
英文摘要	The full ocean depth environment is characterized by high pressure, low temperature, and high corrosiveness, making it difficult for the current deep-sea sampling equipment to obtain pressure-retaining sediment samples from the seafloor. A new self-locking seal structure is designed with an automatic centering plus floating valve core structure to ensure that the long needle valve core only carries the axial load and autonomously fits the sealing cone of the pressure retaining device. The novel self-locking seal design makes the sampler seal more reliable under high pressure. We conducted a series of experiments to verify the sealing performance of the selflocking seal structure, and the test results show that the self-locking seal structure has better sealing performance when the pressure difference between the inside and outside is larger. This new self-locking seal structure has been used for the full ocean depth sediment sampler during the TS-21 cruise in 2021 and was tested in situ at a depth of 7700 m in the West Philippine Basin, retrieving pressure-retaining sediment samples with 94 % pressure retention.
资助项目	National Key Research and Development Program of China[2022YFC2805904] ; Special project for the construction of innovative provinces in Hunan[2020GK1021] ; Special project for the construction of innovative city in Xiangtan[ZX-ZD20221005]
WOS关键词	VALVE
WOS研究方向	Engineering ; Oceanography
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:001093987300001
资助机构	National Key Research and Development Program of China ; Special project for the construction of innovative provinces in Hunan ; Special project for the construction of innovative city in Xiangtan
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/10631]
专题	深海工程技术部_深潜技术研究室
通讯作者	Jin, Yongping
作者单位	1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China 2.Hunan Univ Sci & Technol, Engn Res Ctr Adv Min Equipment Minist Educ, Natl Local Joint Engn Lab Marine Mineral Resources, Xiangtan 411201, Peoples R China
推荐引用方式 GB/T 7714	Liu, Guangping,Jin, Yongping,Peng, Youduo,et al. Experimental study of self-locking seal structure based on full ocean depth sediment pressure retaining sampler[J]. APPLIED OCEAN RESEARCH,2023,141:9.
APA	Liu, Guangping,Jin, Yongping,Peng, Youduo,Tang, Wenbo,&Wan, Buyan.(2023).Experimental study of self-locking seal structure based on full ocean depth sediment pressure retaining sampler.APPLIED OCEAN RESEARCH,141,9.
MLA	Liu, Guangping,et al."Experimental study of self-locking seal structure based on full ocean depth sediment pressure retaining sampler".APPLIED OCEAN RESEARCH 141(2023):9.