Title:
ANTI-CORROSION DEVICE FOR HYDRAULIC ACTUATOR FOR POWER PLANT
Document Type and Number:
WIPO Patent Application WO/2017/126885
Kind Code:
A1
Abstract:
An anti-corrosion device of a hydraulic actuator for a power plant, according to the present invention, in which channels for a fluid actuator supply (FAS) oil, an emergency trip supply (ETS) oil and a fluid drain to cooler (FDC) oil are formed and which valves for selectively opening or closing the channels are coupled to or separated from, comprises: a valve cover assembly disposed at a coupling position of the valves for a hydraulic actuator for a power plant after the valves are separated from the hydraulic actuator for a power plant to cover the channels and to communicate the channels to each other; a vacuum valve assembly having one side connected to any one of the channels of the FAS oil, the ETS oil and the FDC oil and the other side connected to a vacuum pump to guide the vacuum pumping of the hydraulic actuator for a power plant through the channels. Accordingly, as the structure of the valve cover assembly is improved, it is possible to vacuum-pump the hydraulic actuator for a power plant even when the valve cover assembly is vacuum-pumped from any one of a FAS channel, an ETS channel and an FDC channel. As such, it is possible to enhance the efficiency of a vacuum pumping process and the storage efficiency due to corrosion prevention inside the hydraulic actuator for a power plant as well.
Inventors:
YANG CHEON KYU (KR)
Application Number:
PCT/KR2017/000608
Publication Date:
July 27, 2017
Filing Date:
January 18, 2017
Export Citation:
Assignee:
ENESG CO LTD (KR)
International Classes:
F15B21/00; F01D17/10
Foreign References:
| KR101256178B1 | 2013-04-19 | |||
| JPH10277534A | 1998-10-20 | |||
| KR20080005743A | 2008-01-15 | |||
| KR100933173B1 | 2009-12-21 | |||
| JP2015161409A | 2015-09-07 |
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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