Power source for supplying water-based liquid to a system,...

A - Human Necessities – 62 – C

Patent

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A62C 35/64 (2006.01)

Patent

CA 2387062

The invention relates to a power source for supplying water-based liquid to a system (1, 2) through a pipe system (4) which is filled with antifreeze so that the pipe system has a stand-by pressure, wherein a container (5) for the water-based liquid, an additional container (9) which is filled with antifreeze and means (6) for feeding the water-based liquid from the container (5) into the pipe system in liquid phase if the pressure in the pipe system drops below the stand-by pressure by a first pressure value giving momentarily rise to a first pressure level in the pipe system, are associated with the pipe system. To enable economical and automatic supply of water-based liquid to a system without the risk of the liquid freezing, the means for feeding water-based liquid comprises as part of the power source a pump unit (6) comprising a pump (7) and a power source (8) and that the power source comprises an additional pump unit (10) comprising a pump (11) and a power source (12), the additional pump unit being arranged to maintain the stand-by pressure and to supply for this purpose antifreeze from the additional container (9) to the pipe system (4) if the pressure in the pipe system drops below the stand-by pressure by a second pressure value giving momentarily rise to a second pressure level in the pipe system, the second pressure level being bigger than the first pressure level.

L'invention concerne une source d'alimentation destinée à alimenter un système (1, 2) en liquide à base d'eau à travers une tuyauterie (4) remplie d'antigel dotant ledit dispositif d'une pression de secours. Sont associés à ce dispositif, un conteneur (5) pour le liquide à base d'eau, un conteneur supplémentaire (9) rempli d'antigel et un dispositif pour amener, du conteneur (5) à la tuyauterie, le liquide à base d'eau en phase liquide, dans le cas où la pression dans ledit dispositif tombe en dessous de la pression de secours d'une première valeur de pression y entraînant une hausse momentanée à un premier niveau de pression. Pour que l'alimentation d'un système en liquide à base d'eau soit économique et automatique sans que ledit liquide gèle, le moyen d'amener ce liquide comporte, en tant qu'élément de la source d'alimentation, une unité de pompe (6) composée d'une pompe (7) et d'une source d'alimentation (8), cette dernière comportant une unité de pompe supplémentaire (10) composée d'une pompe (11) et d'une source d'alimentation (12). L'unité de pompe supplémentaire est installée de façon à maintenir la pression de secours et à amener l'antigel du conteneur supplémentaire (9) à la tuyauterie (4) dans le cas où la pression tombe en dessous de la pression de secours d'une seconde valeur de pression y entraînant une hausse momentanée à un second niveau de pression, lequel est supérieur au premier niveau de pression.

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