Title: Momentum complex differencial pressure type mass flowmetre
Application Number: 92108520 Application Date: 1992.08.02
Publication Number: 1082708 Publication Date: 1994.02.23
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01F1/34,G01F1/84
Applicant(s) Name: Wang Zhongting Address: 200031
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The present flowmeter has a stepped pipe comprising two restangular elbows. In the pipe, the pressure consists of three parts of fluid dynamic, pipe operation pressure and fluid density pressure. Of two differential pressure divices at two rectangular elbows, one contains fluid dynamic signal and fluid density signal and the other contains only fluid dynamic signal owing to the balalced operation pressure. Substracting two signals can obtain signal proportional to density and after multiplication and evolution operations, an output signal proportional to mass flow can be obtained.
Time: 4