Heat exchange unit for devices with a heat pump, in particular an evaporator for manufacturing and storing ice

Abstract

The unit comprises two similar heat exchangers ( 2.1, 2.2 ) included in the thermodynamic medium circuit through an inlet collectors ( 7.1, 7.2 ) and outlet collectors ( 8.1, 8.2 ), wherein the inlet collectors ( 7.1, 7.2 ) are connected with the outlet collectors ( 8.1, 8.2 ) through the perpendicular tubular flow channels ( 5.1, 5.2 ), wherein final sections ( 10.1, 10.2 ) of the flow channel connections ( 5.1, 5.2 ) to the outlet collector ( 8.1, 8.2 ) are bent off the plate of the radiator ( 4 ) common for both exchangers ( 2.1, 2.2 ) by a dimension (e) greater that half the sum of the outside diameters of the inlet ( 7.1, 7.2 ) and outlet collector ( 8.1, 8.2 ), wherein the tubular nozzle distributors, having many nozzle orifices on the side, directed coaxially to the flow channels ( 5.1, 5.2 ), are introduced to the inside of the inlet collectors ( 7.1, 7.2 ), wherein the diameters of the nozzle orifices increase successively from the end of the thermodynamic medium supply.

1 . A heat exchange unit for the devices with a heat pump, in particular an evaporator in the device for manufacturing and storing ice, comprising a heat exchanger ( 2 , 3 ) included in the thermodynamic medium circuit through an inlet collector ( 7 . 1 ,  7 . 2 ) and an outlet collector ( 8 . 1 ,  8 . 2 ), which in a parallel position are connected through the perpendicular tubular flow channels ( 5 . 1 ,  5 . 2 ) and connected with the plate of the radiator ( 4 ), moreover, wherein the tubular nozzle distributor ( 11 ), having many nozzle orifices ( 12 ) on the side, directed coaxially to the flow channels ( 5 ), and whose diameters d 3  increase successively from the end of the thermodynamic medium supply is inserted longitudinally to the inside of the inlet collectors ( 7 . 1 ,  7 . 2 ), characterized in that the unit consists of two similar heat exchangers ( 2 ,  3 ) incorporated simultaneously in the heat pump circuit, where the flow channels ( 5 . 1 ,  5 . 2 ) have the final sections ( 10 . 1 ,  10 . 2 ) of the connections to the outlet collector ( 8 . 1 ,  8 . 2 ) bent off the radiator plate ( 9 - 9 )—determined by long, straight sections of the flow channels ( 5 . 1 ,  5 . 2 ) coming out from the inlet collector ( 7 . 1 ,  7 . 2 )—by a dimension (e) greater than half the sum of the outside diameters (d 1 , d 2 ) of the inlet ( 7 . 1 ,  7 . 2 ) and outlet ( 8 . 1 ,  8 . 2 ) collector, the heat exchangers ( 2 ,  3 ) being superimposed so that the straight long sections of the flow channels ( 5 . 1 ,  5 . 2 ) alternate with each other in the plane of the radiator ( 9 - 9 ) and are connected with one, common plate of the radiator ( 4 ), the inlet collector ( 7 . 1 ) of the first exchanger ( 2 ) and the outlet collector ( 8 . 2 ) of the second exchanger ( 3 ) are located parallel to each other on both sides of such unit and on the other side the inlet collector ( 7 . 2 ) of the second exchanger ( 3 ) and the outlet collector ( 8 . 1 ) of the first exchanger ( 2 ), moreover, the nozzle distributors ( 11 ) of the first ( 2 ) and second exchanger ( 3 ) are built into the adjacent ends of both inlet collectors ( 7 . 1 ,  7 . 2 ). 
     
     
         2 . The heat exchange unit according to  claim 1 , characterized in that the inter-collector insulating strip ( 14 ) is introduced on both sides of the unit between the inlet collectors ( 7 . 1 ,  7 . 2 ) and the outlet collector ( 8 . 1 ,  8 . 2 ) of the exchangers ( 2 ,  3 ). 
     
     
         3 . The heat exchange unit according to  claim 1 , characterized in that in construction conditions with a horizontal location of the radiator plane ( 9 - 9 ), the inlet collectors ( 7 . 1 ,  7 . 2 ) in both heat exchangers ( 2 ,  3 ) are located above the outlet collectors ( 8 . 1 ,  8 . 2 ). 
     
     
         4 . The heat exchange unit according to  claim 1 , characterized in that the surface between the outlet collectors ( 8 . 1 ,  8 . 2 ) of both exchangers ( 2 ,  3 ) is covered by a counter-plate ( 6 ) that adheres to the flow channels ( 5 . 1 ,  5 . 2 ). 
     
     
         5 . The heat exchange unit according to  claim 4 , characterized in that in construction conditions with a horizontal location of the radiator plane ( 9 - 9 ), the counter-plate is made of a material with a low thermal conductivity coefficient. 
     
     
         6 . The heat exchange unit according to  claim 1 , characterized in that the areas of adjacent pairs of the inlet collector ( 7 . 1 ,  7 . 2 ) and outlet collector ( 8 . 2 ,  8 . 1 ), on both sides of the unit ( 1 ), are longitudinally covered by the edge thermal insulation ( 15 ).