On-site medical gas production plant and associated operating method

摘要

The invention relates to an on-site medical gas production plant (100) comprising a unit (50) for purifying gas, such as air, a first vessel (A) for storing purified gas, and a main gas line (10) fluidically connecting the gas purification unit (50) to the said first storage vessel (A). It furthermore comprises a three-way solenoid valve (VA) arranged on the main gas line (10) upstream of the first storage vessel (A), and furthermore connected to the atmosphere (at 12) via a vent line (11), as well as an operating device (4) which controls at least the three-way solenoid valve (VA), and at least a first gas analysis device (D1) of which a first measurement line (29) is fluidically connected (at 28) to the main line (10), upstream of the three-way solenoid valve (VA), and which is electrically connected to the said operating device (4).

主权项

1. An on-site medical gas production plant (100), comprising:
a gas purification unit (50) configured to produce a purified gas from a less pure supply gas source, wherein less pure supply gas source to be purified is ambient air and the purified gas is medical air, a first vessel (A) for storing the purified gas, and a main gas line (10) fluidically connecting the gas purification unit (50) to the first storage vessel (A) so as to supply the said first storage vessel (A) with the purified gas coming from the gas purification unit (50), wherein the main gas line furthermore comprises: a three-way solenoid valve (VA) arranged on the main gas line (10) between the gas purification unit (50) and the first storage vessel (A), and furthermore connected to the atmosphere (at 12) via a vent line (11), an operating device (4) which controls at least one three-way solenoid valve (VA), at least a first gas analysis device (D1) of which a first measurement line (29) is fluidically connected (at 28) to the main line (10), upstream of the three-way solenoid valve (VA), and which is electrically connected to the operating device (4), and in which the operating device (4) is designed and adapted to act on the three-way solenoid valve (VA) in response to a signal received from the gas analysis device (D1), so as to divert a gas present in the main pipe (10) to pass to the vent line (11) when the signal received from the gas analysis device (D1) corresponds to a contamination signal based on an analysis of the gas in the main pipe (10), and simultaneously to prevent the gas present in the main pipe (10) from being sent to the said first storage vessel (A).