US 5,507,340 A · Multiple circuit cross-feed refrigerant evaporator for static solutions

Abstract

An improved refrigerant evaporator which uses a plurality of circuits to maximize inner and outer surface areas and cross-feed refrigerant to quickly and uniformly remove heat from static solutions within a containment tank. Refrigerant is equally fed to a plurality of individual circuits 20 from a common inlet manifold 2 located at one side of the coil. Individual circuits 20 alternately incorporate, and do not incorporate, crossover members 23 to carry the incoming refrigerant to the each side of the evaporator such that it simultaneously flows inward from both sides. Individual circuits 20 are additionally arranged such that all which are contained within an evaporator are of identical length thus making the invention particularly well suited for use with non-azeotrope refrigerants. Further, the device does not immerse joints or connections in the cooled medium and performs well in corrosion environments.

Claims7

Dependent claims

A heat exchange apparatus for the transfer of heat between a medium at a first temperature and a medium at a second temperature comprising;

a. A distribution means for equally distributing said medium at a first temperature to an inlet end of a plurality of tubular circuits, and
b. a plurality of said tubular circuits which include a plurality of opposing 180 degree bends, and
c. a plurality of said tubular circuits which include a plurality of said opposing 180 degree bends and a plurality of opposing 90 degree bends so as to form a crossover means at both ends of said tubular circuit, and
d. a plurality of support means for securely retaining said plurality of tubular circuits equidistant from each other, and
e. a collection means for receiving said first medium from an outlet end of a plurality of said tubular circuits, and
f. said distribution means and said collection means being located at opposite sides of the heat exchanger and extended some distance from said plurality of 180 degree bends, and
thus arranged such that said plurality of tubular circuits alternately include, and do not include, said crossover means.

4 more elements

Dependencies are inferred from the claim text.

Multiple circuit cross-feed refrigerant evaporator for static solutions

Life of this patent

Multiple circuit cross-feed refrigerant evaporator for static solutions

Life of this patent

Abstract

Claims7