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.

Date of Patent:
Aug. 07, 2001

Filed:

Jul. 20, 1999
Applicant:
Inventors:

Fumio Takahashi, Hitachi, JP;

Iwao Harada, Mito, JP;

Yasuo Fujitani, Tokai-mura, JP;

Assignee:

Hitachi, LTD, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28B 9/10 ;
U.S. Cl.
CPC ...
F28B 9/10 ;
Abstract

A steam condenser according to the present invention has a tube nest which has a massed region of cooling tubes and a plurality of tube bundles with flow passages. A noncondensable gas extracting tube is arranged among the cooling tubes in the massed region. A cooling unit or a steam condensing chamber for condensing steam contained in noncondensable gases which are extracted from the noncondensable gas extracting tube is arranged in the massed region. A discharge flow passage is formed at least partially in the tube next so as to enable the noncondensable gases from the cooling unit or the steam condensing chamber to be discharged outside of the condenser, whereby condensing efficiency of the steam contained in the noncondensable gases which flow into the cooling unit or the steam condensing chamber is improved.


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