Druckminderungsvorrichtung

Details

Veröffentlichungs-Nr.

EP4105542

Aktenzeichen

EP21179536

Anmeldetag

15. Juni 2021

Veröffentlichung

21. Dezember 2022

Rechtsraum

EP

IPC

F17C13/04

Abstract

The invention relates to pressure reducing devices. More specifically, the invention concerns a pressure reducing device (1) comprising an upstream end configured to be connected to a pressurized gas source and a downstream end configured to be connected to a coupled installation and comprising: - an operational fluid circuit (101) comprising a pressure reducing unit (3) configured to reduce the pressure of a pressurized gas flow to a maximum pressure P<A>, an emergency shut-off valve (4) and an outlet interface (5) with a pressure capability P<N>, - a relief fluid circuit (102) comprising a first end connected to the operational fluid circuit (101) downstream of the pressure reducing unit (3) and a safety relief device (6) characterized in that the relief fluid circuit (102) comprises a second end connected to the emergency shutoff valve (4), and that the safety relief device (6) is configured to have at least two states, - a closed state where the safety relief device (6) is inactive and the emergency shutoff valve (4, 7) is open, when the pressure in the fluid circuit (101) downstream of the pressure reducing unit (3) is lower than a predetermined pressure P<L>, and - an open state where the safety relief device (6) is active and the emergency shutoff valve (4, 7) is closed, when the pressure in the fluid circuit (101) downstream of the pressure reducing unit (3) is higher to the predetermined pressure P<L>, the predetermined pressure P<L> being between P<A> + 5% and P<A>+ 500% et/or between P<N> + 5% and P<N> +500%.

Anmelder

Firmen

L'Air Liquide, société anonyme pour l'Étude et l'Exploitation des procédés Georges Claude
Air Liquide Deutschland GmbH

Land

🇫🇷 Frankreich

Fachgebiete