The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Jun. 02, 2017
Electric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangdong, CN;
Yongyan Zhou, Guangdong, CN;
Li Li, Guangdong, CN;
Xiaopeng Fan, Guangdong, CN;
Nian Tang, Guangdong, CN;
Chengji Huang, Guangdong, CN;
Xiaodian Li, Guangdong, CN;
Jiawen Liu, Guangdong, CN;
Peiqi Wu, Guangdong, CN;
Abstract
A backfilling-type online chromatographic detector for sulphur hexafluoride decomposition products includes: a compression pump, a vacuum pump, a gas storage tank, a first six-way valve, a second six-way valve, a first chromatographic column, a second chromatographic column and a detector. One end of the compression pump is connected to one end of the vacuum pump, another end of the vacuum pump is connected to one end of the gas storage tank, another end of the gas storage tank is connected to the first chromatographic column through the first six-way valve, the first chromatographic column is connected to the second chromatographic column through the second six-way valve, and the second chromatographic column is connected to the detector.