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:
Aug. 22, 2017
Filed:
Apr. 27, 2012
Sohei Akinaga, Matsuyama, JP;
Hiroyuki Hatanaka, Matsuyama, JP;
Koji Nagai, Matsuyama, JP;
Tomohiro Ookubo, Matsuyama, JP;
Tetsuji Namato, Matsuyama, JP;
Sohei Akinaga, Matsuyama, JP;
Hiroyuki Hatanaka, Matsuyama, JP;
Koji Nagai, Matsuyama, JP;
Tomohiro Ookubo, Matsuyama, JP;
Tetsuji Namato, Matsuyama, JP;
MIURA CO., LTD., Matsuyama-Shi, Ehime, JP;
Abstract
There is provided a drain recovery system with which power for driving a feedwater pump can be reduced and the feedwater pump can be driven at low costs. The drain recovery system includes: a buffer tank; an assist tank disposed below the buffer tank; a first drain supply line that connects a load device and the buffer tank; a second drain supply line that connects the buffer tank and the assist tank; a drain supply valve; a communication line that establishes communication between the assist tank and the buffer tank; a communication valve; a steam supply line that supplies steam from a boiler to the assist tank; a steam supply valve; a feedwater line that supplies drain from the assist tank to the boiler; and a feedwater pump.