L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Air Liquide Electronics Systems

Hervé Dulphy

Thierry Laederich

Frédéric Loray

Ariel Satin

Aziz Ouerd

Henrique Dos Reis

Pascal Moine

Valère Laurent

Sonia Plaza

Stéphane Siauve

A method of distributing an electrically insulating liquefied gas mixture to high-voltage electrical equipment from a storage means containing an insulating gas mixture, including: heating the insulating gas mixture to a temperature such that the contents of the storage means are a homogeneous fluid; and withdrawing the insulating mixture resulting from step a) to fill high-voltage electrical equipment by raising the temperature of the mixture resulting from step a), wherein, during step b), a set value for regulation is applied at variable pressure, calculated in real time based on weighing the storage means, when the change in the set value of pressure is less than 0.2 bar per 1 kg/mof change in density, and then a set value for regulation is applied at constant temperature until the storage means is emptied of its content.

Distribution of a dielectric gaseous mixture to a high-voltage apparatus

The invention relates to a facility for supplying a working gas provided with an insulating chamber () and a door (') that is pivotable about a vertical axis in order to allow the opening and the closing of said chamber (), including a device () for distributing a working gas having a monitoring and command unit (A) including means () for controlling the monitoring and command unit (A) which can be actuated by an operator of the distribution device (A), said controlling means () including a touchscreen () having command regions () associated with monitoring corresponding tasks, characterised in that said touchscreen is attached to a housing (A) built into the door (&#x2032;), said housing (A) being capable of and designed to pivot about a vertical axis (Y).

Pivotable touchscreen for a gas-distribution facility

An apparatus and method for the treatment of gaseous effluents involving contact with a liquid may include a gas/liquid contact chamber which can receive a liquid in the lower part thereof and which is topped with a gas cover, wherein the chamber allows a gas to be treated. The chamber may also release residual gases following treatment involving contact with the liquid. The apparatus may also include a turbine that includes one or more stages which ensure improved contact between the gas and the liquid, the upper part of the turbine being equipped with an opening for drawing the gas situated in the gas cover above the liquid; and, preferably, a sensor for measuring the pH of the liquid.

Gaseous effluent treatment apparatus

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Jarrie, France

Hervé Dulphy