초록 ▼

Freshly harvested vegetation is precooled in refrigerated containers by circulating 25,000 cubic feet of chilled air per minute through the container. Conduits formed by pallets on which boxes of the vegetation are stacked distributes the chilled air, which flows through the produce to the top of th

Freshly harvested vegetation is precooled in refrigerated containers by circulating 25,000 cubic feet of chilled air per minute through the container. Conduits formed by pallets on which boxes of the vegetation are stacked distributes the chilled air, which flows through the produce to the top of the refrigerated container. Air is withdrawn from the top of the container and cooled by flowing it past large chilled water film surface area produced by cascading 2,200 gallons of water per minute through a cross fluted PVC surface media block. A drift eliminator removes water droplets that might damage vegetation or cardboard boxes from the chilled air exiting the surface media block. A radial fan recirculates the rechilled air to the conduits below the pallets. A false door is movably mounted to fluidly connect the air flow at appropriate positions on the container.

대표청구항 ▼

Structure for precooling vegetation in a. a transport container having an opening therein providing access to an interior of the transport container, b. a true door associated with the container for covering and sealing the opening during transport and storage, c. container refrigeration means on th

Structure for precooling vegetation in a. a transport container having an opening therein providing access to an interior of the transport container, b. a true door associated with the container for covering and sealing the opening during transport and storage, c. container refrigeration means on the transport container for maintaining a desired container temperature within the transport container that is at least the standard recommended storage temperature for said vegetation; WHEREIN THE IMPROVED STRUCTURE COMPRISES: d. a frame having two ends, e. a false door on one end of the frame that is shaped to cover and seal the opening of the container, f. the false door movably mounted on the frame for vertical and horizontal movement, g. a heat exchange chamber on the frame, h. a return conduit fluidly connecting the heat exchange chamber to a return port in the false door, i. a fan on the frame having an intake of the fan fluidly connected to the heat exchange chamber, j. a fan conduit fluidly connecting an exhaust of the fan to an inlet port in the false door, k. a block of surface media within the heat exchange chamber, l. distribution means within the heat exchange chamber above the block of surface media for distributing water onto the block of surface media, m. a water inlet on the heat exchange chamber for fluidly connecting the distribution means with n. a source of chilled water outside the heat exchange chamber, o. the chilled water from the source of chilled water being at a water chill temperature that is at least the desired container temperature, p. said block of surface media providing structure for the dispersion of the chilled water from the distribution means in a film over extensive surface area within the block of surface media to enhance heat exchange between the flowed gas and the film of water within the block of surface media, and q. a water drain at a bottom of the heat exchange chamber.