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:
Oct. 06, 1981
Filed:
Feb. 27, 1980
Jun Kubota, Tokyo, JP;
Doryokuro Kakunenryo Kaihatsu Jigyodan, Tokyo, JP;
Abstract
A method for detecting the flow instability in steam generators is provided. First, a number of limit values on the differential pressure between the water-side inlet and outlet of the steam generator are determined at different feedwater flow rates. The limit values define the onset of the flow instability. By connecting the thus determined limit values, a boundary line defining the occurrence of the flow instability is obtained. Second, it is checked whether the measured differential pressure between the inlet and outlet at an actual feedwater flow rate is above or below the boundary line so as to determine if the flow instability has occurred or not in the steam generator. An apparatus for accomplishing the method is also provided.