Measuring and testing – Liquid level or depth gauge – Hydrostatic pressure type
Patent
1985-06-03
1987-02-17
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
Hydrostatic pressure type
340614, G01F 2314
Patent
active
046430253
ABSTRACT:
A differential pressure detector is employed for measuring the liquid level in a pressurized vessel. The differential pressure detector senses the level in a pressurized vessel through a variable head column and a constant head cold reference column. In order for the differential pressure detector to operate accurately, the head of the liquid in the cold reference column is maintained constant. An ambient reference column is in communication with the cold reference column. When the height of the liquid in the cold reference column drops, or the pressure of the pressurized vessel drops, liquid in the ambient reference column will flow into the cold reference column to maintain the head of the liquid in the cold reference column. When the height of the liquid level in the cold reference column is elevated, the excess liquid in the cold reference column overflows into the pressurized vessel. The pressurized vessel is disposed within a containment, while the ambient reference column and the differential pressure detector are located outside of the containment. The variable head column and the constant head column are subject to environmental changes within the containment.
REFERENCES:
patent: 2337171 (1943-12-01), Winton
patent: 2521477 (1950-09-01), Pellettere
patent: 2791906 (1957-05-01), Vetter
patent: 3132516 (1964-05-01), Kinderman
patent: 3232111 (1966-02-01), Kinderman
patent: 3250123 (1966-05-01), Clayton
patent: 3371534 (1968-03-01), Akeley
patent: 3394590 (1968-07-01), Napolitano
patent: 3481203 (1969-12-01), Ackerman et al.
patent: 4084435 (1978-04-01), Weik et al.
patent: 4394346 (1983-07-01), Morooka
Manual on Installation of Refinery Instruments and Control Systems, API RP 550, Second Edition, Mar. 1965, American Petroleum Institute, Part I, Process Instrumentation and Control.
General Electric Company, Atomic Power Equipment Department, Field Engineering, Process Instrument and Control Training Course, publication by G. P. Stone.
Pressure Vessel Code, Section L, 1983 Edition, General Requirements, PG-60.
Wiseman Jack M.
Yasich Daniel M.
LandOfFree
System for measuring liquid level in a pressurized vessel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for measuring liquid level in a pressurized vessel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for measuring liquid level in a pressurized vessel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1931009