Multi tube-fins liquid-air heat exchanger and methods

Abstract

A secondary refrigerant fluid is cooled or heated in the operation of a multiple Tube-fins heat exchanger arranged in parallel for fins to conduct heat transfer with air being propelled by a multi-row bank of low profile brushless fans. Fluid is controlled to ascend the bank of tubes in unison rate for high efficiency heat transfer with air. Large temperature differential exists between air and fluid when conditioned fluid travels through the tubes for a relatively short distance. A system of components is so arranged that the fluid flow rate to every heat exchanger is preset and the “on” or “off” operation of any heat exchanger does not affect the flow rate destined for other heat exchangers. Fluid is not transported to a heat exchanger when it is not in operation saving energy. Each heat exchanger is controlled by an integrated thermostat so occupants can set the air conditioning operation individually independent of all other heat exchangers.

1 . An apparatus for using cooled or heated fluid in a closed loop system conducting heat transfer with air as heat exchanger for air conditioning and refrigeration comprising: means for controlled fluid flow rate shared by many tubes and ascending the tubes in unison for a short distance conducting heat transfer with high temperature differential between fluid and air; half diameter of the tubes are soldered onto a groove formed longitudinally on the fin to insure maximum heat transfer between tube and fin, a large number of these tube fins are arranged in parallel close together so air can conduct heat transfer intimately with fins, and rows of fans propel air through the spaces between fins for heat transfer. 
     
     
         2 . The apparatus as in  claim 1 , wherein another fluid input tube with multiple short tubes is connected to the primary input tube to insure fluid is traveling through all tubes at uniform rate. 
     
     
         3 . The apparatus as in  claim 1 , wherein the apparatus is installed in every room and space needing air conditioning, and the heat exchanger's operation is controlled by occupant independently from other heat exchangers in an air conditioning system. 
     
     
         4 . The apparatus is in  claim 1 , wherein each heat exchanger is equipped with thermostat and optional relativity humidity control. 
     
     
         5 . The apparatus as in  claim 1 , wherein a heat exchanger can be larger or smaller modules that fit needs of most size rooms. 
     
     
         6 . The apparatus as in  claim 5  that each heat exchanger is equipped with manual valve for setting conditioned fluid flow rate to match the module size in function. 
     
     
         7 . The apparatus as  claim 1  wherein the inclusion of temperature sensors monitor temperature of input conditioned fluid and temperature of processed fluid for heat exchanger operation. 
     
     
         8 . The apparatus as in  claim 7  wherein heat leakage of a room can be monitored by the difference of temperatures of input and output fluid to the heat exchanger at the same time keeping the room temperature constant. 
     
     
         9 . The apparatus as  claim 1  wherein heat exchanger can be used for reclaiming waste heat to for reuse. 
     
     
         10 . A supporting system that includes air pressure generator, air operated diaphragm pump, air storage tank(s), normally closed solenoid valves, normally open solenoid valves, manual valve and sensor/regulator for air pressure to operate in conjunction with Tube-fins heat exchangers that offer functions that are previously unattainable by prior arts. 
     
     
         11 . System as in  claim 10  wherein air pressure generator and air tanks are used due to the need for a non-corrosive positive displacement diaphragm pump that is in operation with compressed air. 
     
     
         12 . System as in  claim 11  wherein a positive displacement pump is essential in delivering a pre-set rate of fluid to each heat exchanger without change or its output is not influenced by operation of heat exchangers. 
     
     
         13 . A system as in  claim 10  wherein each heat exchanger can have required rate of conditioned fluid being supplied pre-set for its size and need.