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.:

US 9697921 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 04, 2017

Filed:

Jan. 19, 2016
Applicant:

Areva Gmbh, Erlangen, DE;

Inventor:

Axel Hill, Stockstadt, DE;

Assignee:

Areva GmbH, Erlangen, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/04 (2006.01); G21F 9/02 (2006.01); G21D 3/06 (2006.01); G21F 7/015 (2006.01);
U.S. Cl.
CPC ...
G21F 9/02 (2013.01); B01D 53/0446 (2013.01); G21D 3/06 (2013.01); G21F 7/015 (2013.01); B01D 2257/11 (2013.01); B01D 2259/4508 (2013.01); Y02E 30/40 (2013.01);
Abstract

A ventilation system operating method for a service personnel-accessible operations room or control room in a nuclear plant or nuclear power plant enables a supply of decontaminated fresh air at least for a few hours in the event of serious incidents involving the release of radioactive activity. The content of radioactive inert gases in the fresh air supplied to the operations room should be as low as possible. Therefore, an air supply line is guided from an external inlet to the operations room, a first fan and a first inert gas adsorber column are connected into the air supply line, an air discharge line is guided from the operations room to an external outlet, a second fan and a second inert gas adsorber column are connected into the air discharge line, and a switchover device interchanges the roles of the first and second inert gas adsorber columns.


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