A closed cycle heat transfer device and method

Details A closed cycle heat transfer device and method A closed cycle heat transfer device and method

F - Mech Eng,Light,Heat,Weapons

24

H

F24H 1/00 (2006.01) F24H 4/00 (2006.01) F28D 15/02 (2006.01)

Patent

CA 2666321

A closed cycle heat transfer device comprising a boiler (10) and a condenser (13), the condenser being used to recover useful heat by latent heat evaporation. A circuit defined by the boiler (10), condenser (13) and ducts (12, 15) is to be liquid-filled at a pressure just above atmospheric pressure. An expansion device (16) maintains the working pressure in the circuit but will receive excess condensate in a liquid phase to compensate for expansion of the working fluid vapour which passes from the boiler (10) to the condenser (13). The expansion chamber contains a movable or flexible member which, when working liquid is received in the chamber, is displaced to compress a gas in the chamber.

L'invention concerne un dispositif de transfert de chaleur en cycle fermé comportant une chaudière (10) et un condenseur (13), le condenseur étant utilisé pour récupérer de la chaleur utile par une évaporation à chaleur latente. Un circuit défini par la chaudière (10), le condenseur (13) et des conduits (12, 15) doit être rempli de liquide à une pression très légèrement supérieure à la pression atmosphérique. Un dispositif (16) de détente maintient la pression de travail du circuit mais accueille l'excès de condensat dans une phase liquide afin de compenser la détente de la vapeur du fluide de travail passant de la chaudière (10) au condenseur (13). La chambre de détente contient un organe mobile ou souple qui, lorsque du liquide de travail est reçu dans la chambre, est déplacé pour comprimer un gaz dans la chambre.

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