초록 ▼

Rotary vacuum evaporation of a primary refrigerant cools a secondary refrigerant mixed with it. The secondary refrigerant does not change state and meanders through a low pressure cooling circuit for refrigeration applications. The primary refrigerant changes state and remains in a short and secure

Rotary vacuum evaporation of a primary refrigerant cools a secondary refrigerant mixed with it. The secondary refrigerant does not change state and meanders through a low pressure cooling circuit for refrigeration applications. The primary refrigerant changes state and remains in a short and secure circuit. Evaporation is produced at a surface around the axis of rotation and within the mixture by opposed centrifugal and centripetal forces acting through a narrow afferent mesial passage between rotating disks mounted on a hollow shaft. Vapor is stripped from the surface, scrubbed by cyclonic flow through the afferent mesial passage, and condensed by a centrifugal compressor, which is a centrifugal pump having its inlet communicating with the bore of the hollow shaft and the afferent mesial passage. Latent heat is drawn off by water, making this a water heater, and the water is produced by de-humidification. The primary refrigerant and the secondary refrigerant are cheap and environmentally harmless, e.g. propylene glycol and acetone. A method and apparatus for refrigeration using only water is disclosed. Energy efficiency is maximized by avoidance of positive displacement pumps and narrow conduits, and by operation during times when excess power is in the grid.

대표청구항 ▼

A two phase rotary refrigeration apparatus, comprising a tank containing a liquid mixture comprising a primary refrigerant and a secondary refrigerant; a closed secondary refrigerant circuit outside the tank and communicating therewith; and a closed primary refrigerant circuit, comprising means for

A two phase rotary refrigeration apparatus, comprising a tank containing a liquid mixture comprising a primary refrigerant and a secondary refrigerant; a closed secondary refrigerant circuit outside the tank and communicating therewith; and a closed primary refrigerant circuit, comprising means for condensing vapor of the primary refrigerant, means for heat exchange connected to said vapor condensing means, means for reintroducing condensate of the primary refrigerant into the tank, and means for separating the primary refrigerant from the mixture, said separation means comprising at least one rotatable radial structure submerged in the mixture, said rotatable radial structure being rotatable about an axis of rotation and defining at least one afferent mesial passage for the flow of fluid from the mixture toward the axis of rotation, said afferent mesial passage being at least partially disposed in a plane approximately normal to the axis of rotation and having a length greater than its width, a hollow shaft having its bore communicating with the afferent mesial passage and having its centerline lying approximately along the axis of rotation, and means for pumping vapor of the primary refrigerant from the mixture through the bore of the shaft and to said condensing means while the rotatable radial structure rotates about the axis of rotation.