DECOMPRESSION DEVICE

PROBLEM TO BE SOLVED: To achieve measurement of a gas flow amount inside a fluid conduit installed with a decompression device, without generating losses of primary and secondary pressures in the fluid conduit.SOLUTION: A decompression device 10, which is installed in a fluid conduit 1 and acquires...

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Bibliographische Detailangaben
Hauptverfasser:	TAKEUCHI TOMOAKI, TORIUMI RYOICHI, SHIMADA HIROO, SUZUKI YUJI, GARAN TAKESHI
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROLLING MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To achieve measurement of a gas flow amount inside a fluid conduit installed with a decompression device, without generating losses of primary and secondary pressures in the fluid conduit.SOLUTION: A decompression device 10, which is installed in a fluid conduit 1 and acquires a secondary pressure in a downstream side fluid conduit 1d by reducing a primary pressure in an upstream side fluid conduit 1u, comprises: a secondary pressure detection portion 13 for detecting the secondary pressure; a variable resistance portion 11 for variably adjusting resistance of a gas flow based on the secondary pressure detected at the secondary pressure detection portion 13; and a fixed resistance portion 12 which is provided on the downstream side of the variable resistance portion 11 and has a constant resistance of the gas flow. The pressure is reduced from the primary pressure to the secondary pressure by a combined resistance of the gas flow of the variable resistance portion 11 and the fixed resistance portion 12. The gas flow amount of the fluid conduit 1 can be measured by detecting generated pressure difference at the fixed resistance portion 12.