초록 ▼

A high pressure heat exchanger has a body with spaced apart parallel plates with side walls joined to the peripheral edge of each plate; a tubular high pressure liquid inlet header external of the body; a tubular high pressure liquid outlet header external of the body; a plurality of separate tubula

A high pressure heat exchanger has a body with spaced apart parallel plates with side walls joined to the peripheral edge of each plate; a tubular high pressure liquid inlet header external of the body; a tubular high pressure liquid outlet header external of the body; a plurality of separate tubular runs in communication with the inlet and outlet headers; each tubular run including a tubular portion between substantially all adjacent plates of the body; the tubular portions of the same run being interconnected at one end by a tubular liquid return with a tubular portion on the opposite side of a first adjacent body plate and interconnected at the other end by a tubular liquid return with a tubular portion on the opposite side of a second adjacent body plate; the body internal plates having a liquid communication opening which permits a second liquid to flow from the space on one side of a baffle plate to the space on the other side of the baffle plate in a serpentine flow path through the body while in heat exchange contact with a first liquid flowing countercurrent in the tubular runs; the body having an inlet for feeding a second liquid into the body so that it flows countercurrent to the first liquid in the tubes; and the body having an outlet for withdrawing the second liquid from the body. A method of making the heat exchanger is also disclosed as is refrigeration apparatus using the heat exchanger.

대표청구항 ▼

A high pressure heat exchanger including: a body comprising a pair of spaced apart external parallel flat plates having substantially the same size and shape and with each plate terminating in a peripheral edge portion; the body having side wall means joined to the peripheral edge portion of each ex

A high pressure heat exchanger including: a body comprising a pair of spaced apart external parallel flat plates having substantially the same size and shape and with each plate terminating in a peripheral edge portion; the body having side wall means joined to the peripheral edge portion of each external plate thereby enclosing a heat exchange space defined by the external plates; the body having a plurality of spaced apart internal parallel flat baffle plates parallel to the external plates and with the peripheral edge portion of each baffle plate joined to the body side wall means by welding; a tubular high pressure liquid inlet header external of the body; means to feed high pressure liquid to the inlet header; a tubular high pressure liquid outlet header external of the body; means to withdraw high pressure liquid from the outlet header; a plurality of separate tubular runs in communication with the inlet and outlet headers; each tubular run including a tubular portion between substantially all adjacent plates of the body; the tubular portions of the same run being interconnected at one end by a tubular liquid return means with a tubular portion on the opposite side of a first adjacent body plate and interconnected at the other end by a tubular liquid return means with any tubular portion that is on the opposite side of a second adjacent body plate; the body interior having liquid communication means which permits a second liquid to flow from the space on one side of a baffle plate to the space on the other side of the baffle plate in a serpentine flow path through the body while in heat exchange contact with a first liquid flowing countercurrent in the tubular runs; the body having inlet means for feeding a second liquid into the body so that it flows countercurrent to the first liquid in the tubes; and the body having outlet means for withdrawing the second liquid from the body. Refrigeration apparatus comprising: a high pressure heat exchanger including a body comprising a pair of spaced apart external parallel flat plates having substantially the same size and shape and with each plate terminating in a peripheral edge portion; the body having side wall means joined to the peripheral edge portion of each external plate thereby enclosing a heat exchange space defined by the external plates; the body having a plurality of spaced apart internal parallel flat baffle plates parallel to the external plates and joined to the body side wall means; a high pressure aqueous liquid inlet header external of the body; a high pressure aqueous liquid outlet header external of the body; a plurality of separate tubular runs in communication with the inlet and outlet headers; each tubular run including a tubular portion between substantially all adjacent plates of the body; the tubular portions of the same run being interconnected at one end by a tubular liquid return means with a tubular portion on the opposite side of a first adjacent body plate and interconnected at the other end by a tubular liquid return means with any tubular portion that is on the opposite side of a second adjacent body plate; the body interior having liquid communication means which permits a second liquid to flow from the space on one side of a baffle plate to the space on the other side of the baffle plate in a serpentine flow path through the body while in heat exchange contact with a first liquid flowing countercurrent in the tubular runs; the body having inlet means for feeding a second liquid into the body so that it flows countercurrent to the first liquid in the tubes; and the body having outlet means for withdrawing the second liquid from the body; a closed loop including cooling means to cool an aqueous liquid, conduit means for feeding the cooled aqueous liquid from the cooling means to the high pressure aqueous liquid inlet header and through the tube side of the high pressure heat exchanger, means for withdrawing warm cooling liquid from the high pressure aqueous liquid outlet header of the heat exchanger and returning it to the cooling means to be cooled again; and conduit means for feeding a warm fluid to the heat exchanger body inlet means and through the plate side of the heat exchanger to produce cooled fluid, conduit means for withdrawing the cooled fluid from the heat exchanger body outlet means and delivering it to a destination to be used for refrigeration purposes whereby it is converted to warm fluid, and conduit means for returning the warm fluid to the heat exchanger body inlet means so that it can flow through the plate side of the heat exchanger.