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:
Apr. 09, 2019
Filed:
Nov. 23, 2016
Shandong University of Science and Technology, Qingdao, CN;
Weimin Cheng, Qingdao, CN;
Zhen Liu, Qingdao, CN;
Gang Wang, Qingdao, CN;
Gang Zhou, Qingdao, CN;
Lianjun Chen, Qingdao, CN;
Wen Nie, Qingdao, CN;
Lin Xin, Qingdao, CN;
Yanbin Yu, Qingdao, CN;
Guanhua Ni, Qingdao, CN;
He Yang, Qingdao, CN;
SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Qingdao, CN;
Abstract
Described are a test apparatus and a test method for the wetted perimeter of coal seam water injection. In the test apparatus, a columnar insulator is provided between an upper electrode and a lower electrode, circular insulating tapes are located at the outer edges of the upper electrode and the lower electrode, a circular reverse osmosis membrane is provided at the middle of the circular insulating tape, the upper electrode, lower electrode, circular insulating tapes and circular reverse osmosis membrane form an enclosed chamber which is filled with solid sodium chloride, and cotton yarns are packed among the upper resin backing plate, lower resin backing plate, circular insulating tapes and the inner walls of water permeable perforated pipes. The upper electrode is provided with an electrode lead which passes through the columnar insulator, the lower electrode and the lower resin backing plate and goes out from the tail connecting end.