Vacuum solar thermal panel provided with an internal pressure indicator
AssigneeTvp Solar SA
InventorVittorio Palmieri
Life of this patent
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Abstract
The present application relates to a vacuum solar thermal panel (1) of the type comprising: a vacuum- tight envelope (10), having at least a front plate (11) transparent to solar radiation and a support structure (12) for said front plate (11); heat-absorbing means enclosed within said vacuum-tight envelope (10); and main getter means for keeping a vacuum condition within the vacuum envelope (10); wherein the vacuum solar thermal panel (1) further comprises a pressure indicator spot (13) of reactive material deposited on an inner side of said front plate (11), said reactive material undergoing a reaction noticeable from the outside of the vacuum-tight envelope (11) when the pressure within said envelope exceeds a given threshold.
Claims16
A vacuum solar thermal panel, comprising:
- a vacuum-tight envelope, having at least a front plate transparent to solar radiation and a support structure for said front plate;
- heat-absorbing means enclosed within said vacuum-tight envelope;
- main getter means for keeping a vacuum condition within the vacuum envelope;
- a pressure indicator spot of reactive material deposited on an inner side of said front plate, said reactive material undergoing a reaction noticeable from the outside of the vacuum-tight envelope when the pressure within said envelope exceeds a threshold.
Dependencies are inferred from the claim text.