Publication detail
Experimental investigation of the check valve behaviour when the flow is reversing
HIMR, D. HABÁN, V. HUDEC, M. PAVLÍK, V.
Czech title
Experimentální výzkum chování zpětného ventilu během obrácení proudu
English title
Experimental investigation of the check valve behaviour when the flow is reversing
Type
conference paper
Language
en
Original abstract
Check valve in a pipeline is supposed to prevent the reverse flow and to allow the flow in the positive direction. The construction of check valves follows these requirements, but the check valve must not cause pressure pulsations in transients. It means when the fluid is accelerating or decelerating. The article describes an experimental investigation of a swing check valve when the flow is changing its direction. The check valve was placed in an experimental circuit, where the pressure on the upstream and downstream side of the valve was measured and the current value of flow rate was determined. The goal was to simulate conditions in the real system, where the check valve slam had been observed.
Czech abstract
Zpětná armatura v potrubí má zamezit zpětnému proudění a umožnit proudění v pozitivním směru. Konstrukce zpětných armatur se snaží umožnit tyto požadavky, ale nesmí způsobit tlakové pulzace během přechodových dějů. To znamená během zrychlování nebo zpomalování proudu. Článek popisuje experimentální výzkum závěsné zpětné klapky, když dochází obrácení proudění. Zpětná klapka byla umístěna v experimentálním okruhu, kde tlak na obou stranách klapky byl měřen a hodnota průtoku z nich byla dopočítána. Cílem bylo nasimulovat podmínky v reálném systému, kde práskání zpětné klapky bylo pozorováno.
English abstract
Check valve in a pipeline is supposed to prevent the reverse flow and to allow the flow in the positive direction. The construction of check valves follows these requirements, but the check valve must not cause pressure pulsations in transients. It means when the fluid is accelerating or decelerating. The article describes an experimental investigation of a swing check valve when the flow is changing its direction. The check valve was placed in an experimental circuit, where the pressure on the upstream and downstream side of the valve was measured and the current value of flow rate was determined. The goal was to simulate conditions in the real system, where the check valve slam had been observed.
Keywords in Czech
zpětný ventil, experimentální výzkum, změna proudění, obrácení proudu, tlakové špičky, výpadek čerpadla
Keywords in English
Check valves, Experimental investigations, Flow changes, Flow reversals, Pressure peaks, Pump trips
Released
12.05.2017
Publisher
EDP Sciences
ISSN
2100-014X
Book
EPJ Web of Conferences
Volume
114
Number
2016
Pages from–to
1–6
Pages count
6
BIBTEX
@inproceedings{BUT136960,
author="Daniel {Himr} and Vladimír {Habán} and Pavel {Dokoupil} and Martin {Hudec} and Václav {Pavlík},
title="Experimental investigation of the check valve behaviour when the flow is reversing",
booktitle="EPJ Web of Conferences",
year="2017",
volume="114",
number="2016",
month="May",
pages="1--6",
publisher="EDP Sciences",
issn="2100-014X"
}