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:
Feb. 12, 2019
Filed:
Apr. 18, 2014
Toshiba Energy Systems & Solutions Corporation, Kawasaki-shi, JP;
Toshiba Plant Systems & Services Corporation, Yokohama, JP;
Yuichi Nakamura, Yokohama, JP;
Tomoo Ohfuji, Yokohama, JP;
Tsutomu Shioyama, Yokohama, JP;
Hiroki Shiraishi, Yokohama, JP;
Makoto Takahashi, Yokohama, JP;
Tsutomu Ooishi, Yokohama, JP;
Daisuke Asakura, Kawasaki, JP;
Toshihiko Endo, Yokohama, JP;
Hiroyuki Tao, Kawasaki, JP;
Tetsuya Yamanaka, Yokohama, JP;
Koji Kanbe, Kawasaki, JP;
Hiroryuki Nishi, Yokohama, JP;
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION, Kawasaki-shi, JP;
TOSHIBA PLANT SYSTEMS & SERVICES CORPORATION, Yokohama-shi, JP;
Abstract
A steam turbine pipeof an embodiment includes: an upper half side main steam pipethat leads steam to a steam turbine; an upper half side main steam control valvethat intervenes in the upper half side main steam pipe; and a post-valve drain pipethat is connected to the upper half side main steam control valveand leads drain to an outside. The steam turbine pipefurther includes: a shut-off valvethat intervenes in the post-valve drain pipe; and a branching pipethat makes the post-valve drain pipeon the side closer to the upper half side main steam control valvethan is the shut-off valvecommunicate with the upper half side main steam pipebetween the upper half side main steam control valveand a high-pressure turbine