Multiphase flowmeter for measuring each phase flow rate of a...

Details Multiphase flowmeter for measuring each phase flow rate of a... Multiphase flowmeter for measuring each phase flow rate of a...

2007-08-07

2010-11-09

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Of selected fluid mixture component

C073S03200R

Reexamination Certificate

active

07827869

ABSTRACT:
In order to extract a part of a three-phase flow from a pipe line, a pair of communication pipes, which are connected to upstream and downstream sides of an orifice provided in the pipe line, and a gas-liquid extraction tank are used. Flowing of a slag flow or the like into the pipe line causes a periodical change in a pressure difference between input and output sides of the orifice. This causes extraction of gas-liquid and discharge mainly of gas to be simultaneously effected in the pair of communication pipes and the gas-liquid extraction tank. Within the gas-liquid extraction tank, the gas-liquid is forcibly shaken horizontally, vertically, etc. for agitating, whereby gas-liquid of high liquid-phase rate remains. Then, the gas is removed from this gas-liquid of high liquid-phase rate to thereby extract mixture liquid, which is accumulated in a liquid storage tank. The mixture liquid flows from the liquid storage tank in an amount required at a Coriolis meter. As a result, high precision density measurement is performed at the Coriolis meter.

REFERENCES:
patent: 2954692 (1960-10-01), Hornfeck
patent: 4881412 (1989-11-01), Northedge
patent: 2007/0193373 (2007-08-01), Xie et al.
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patent: 2003-513234 (2003-04-01), None
patent: 2005-3532 (2005-01-01), None
International Search Report mailed Oct. 2, 2007 for International Application No. PCT/JP2007/065796.

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