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:
Mar. 25, 2014
Filed:
Jun. 01, 2011
Ning-yih Hsu, Keelung, TW;
Chieh Fang, Taipei, TW;
Hwa-yuan Tzeng, Taoyuan County, TW;
Chen-to Tsai, Hsinchu, TW;
Tung-jen Wen, Hsinchu County, TW;
Ning-Yih Hsu, Keelung, TW;
Chieh Fang, Taipei, TW;
Hwa-Yuan Tzeng, Taoyuan County, TW;
Chen-To Tsai, Hsinchu, TW;
Tung-Jen Wen, Hsinchu County, TW;
Institute of Nuclear Energy Research, Atomic Energy Council, Lungtan, Taoyuan, TW;
Abstract
A nuclear plant is provided with a pipe-passivating alkali-injecting device including an alkali-injecting tank, an actuator, a counter-balance valve, a pressure gauge, exhaust valves and switching valves. The actuator is connected to the alkali-injecting tank via a first pipe. The counter-balance valve is connected to the actuator via a second pipe and connected to the alkali-injecting tank via a third pipe. The pressure gauge is provided between the actuator and the counter-balance valve and connected to the second pipe. The exhaust valves are connected to the first and second pipes, and so are the switching valves. The alkali-injecting tank, the actuator and the counter-balance valve are used together to expel gases from the pipes while injecting alkali, thus effectively avoiding feedback of liquid in the nuclear plant, transmitting pure alkali in the pipes, and reducing damage to the pipes.