Heat exchanger, refrigeration cycle device equipped with heat exchanger, or heat energy recovery device

Abstract

A plurality of heat-exchanger tubes, each of which has an inlet fin formed on a side surface on the air inlet side of a flattened hollow tube and extending upstream of air along the flow of air and an outlet fin formed on the side surface on the air outlet side of the hollow tube and extending downstream of the air along the flow of the air are arranged at regular intervals in such a manner that their oblong planes face one another, an upper header which supplies a first heat exchange medium is attached on top of the heat-exchanger tubes, and an lower header which collects the first heat exchange medium is attached at the bottom of the heat-exchanger tubes to form a heat exchanger.

1 . A heat exchanger, comprising:
 a plurality of heat-exchanger tubes which are made of a metal into flattened hollow tubes and are arranged in parallel to one another in such a manner that oblong planes face one another and performs heat exchange by using a first heat exchange medium flowing through the plurality of heat-exchanger tubes and a second heat exchange medium flowing between the plurality of heat-exchanger tubes in a direction orthogonal to the first heat exchange medium;   wherein the plurality of heat-exchanger tubes has inlet fins extending upstream along a flow of the second heat exchange medium from a side surface on the inlet side of the second heat exchange medium.   
     
     
         2 . The heat exchanger in accordance with  claim 1 , wherein the inlet fins are integral with a member that constitutes the heat-exchanger tubes. 
     
     
         3 . The heat exchanger in accordance with  claim 1 , wherein the heat-exchanger tubes include an inner fin inside the tubes and the inlet fin is integral with the inner 
     
     
         4 . The heat exchanger in accordance with  claim 1 , wherein a wavelike ridges and grooves where a series of “V” shape peaks and valleys of a wave runs viewed from the upstream side of the flow of the second heat exchange medium is formed in the oblong planes of the inlet fins and/or the heat-exchanger tubes. 
     
     
         5 . The heat exchanger in accordance with  claim 1 , wherein the plurality of heat-exchanger tubes have outlet fins extending downstream along the flow of the second heat exchange medium from a side surface on the outlet side of the second heart exchange medium. 
     
     
         6 . The heat exchanger in accordance with  claim 5 , wherein the outlet fin is integral with a member that constitute each heat-exchanger tube. 
     
     
         7 . The heat exchanger in accordance with  claim 1 , wherein the plurality of heat-exchanger tubes has outlet fins extending upstream along a flow of the second heat exchange medium from a side surface on the outlet side of the second heat exchange medium; and the heat-exchanger tubes include an inner fin inside the tubes and the inlet fin or the outlet fin is integral with the inner fin. 
     
     
         8 . A heat exchanger, comprising:
 a plurality of heat-exchanger tubes which are made of a metal into flattened hollow tubes and are arranged in parallel to one another in such a manner that oblong planes face one another and performs heat exchange by using a first heat exchange medium flowing through the plurality of heat-exchanger tubes and a second heat exchange medium flowing between the plurality of heat-exchanger tubes in a direction orthogonal to the first heat exchange medium;   wherein the plurality of heat-exchanger tubes has outlet fins extending downstream along a flow of the second heat exchange medium from a side surface on the outlet side of the second heat exchange medium.   
     
     
         9 . The heat exchanger in accordance with  claim 1 , wherein the heat-exchanger tubes are formed to have a thickness of less than or equal to 3 mm and are arranged in parallel to one another with a regular spacing of less than or equal to 3 mm between adjacent heat-exchanger tubes. 
     
     
         10 . A refrigeration cycle device with application of the heat exchanger in accordance with  claim 1 . 
     
     
         11 . A heat energy recovery device with application of the heat exchanger in accordance with  claim 1 .