Spring assisted multi-nozzle desuperheater

Details Spring assisted multi-nozzle desuperheater Spring assisted multi-nozzle desuperheater

F - Mech Eng,Light,Heat,Weapons

22

G

F22G 5/12 (2006.01)

Patent

CA 2233546

A steam desuperheater has a body (38) extending into a steam line (10) and is operated by a controlled variable water pressure source responding to the amount of superheat in the steam line. As the pressure of the supply line is increased above a predetermined level greater than the steam pressure in the steam line (10), a piston (50) moves up against a calibrated spring (61) to progressively uncover a plurality of spray openings (73, 76) so that increasing water pressure results in an increasingly greater amount of water sprayed into the steam line.

La présente invention concerne un désurchauffeur de vapeur dont le corps (38) est disposé dans une ligne de vapeur (16), lequel désurchauffeur de vapeur est mis en oeuvre par une source de pression d'eau variable régulée réagissant à la quantité de surchauffe prévalant dans la ligne de vapeur. Lorsque la pression dans la ligne de surchauffe dépasse un niveau défini supérieur à la pression de la vapeur dans la ligne de vapeur (16), un piston vient agir contre un ressort étalonné (61), découvrant ainsi progressivement une pluralité d'orifices de pulvérisation (73, 76), l'accroissement résultant de la pression d'eau se retrouvant sous la forme d'un accroissement continu du volume de l'eau pulvérisée dans la ligne de vapeur.

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