Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping

Abstract

The present invention improves the conventional applications for the cold heat absorbing device or hot heat release device to have the single flow circuit flow direction functioning structure for periodic positive and reverse directional pumping thereby timely improving the temperature distribution between the fluid and the heat absorbing/release device, and reducing the disadvantages of impurity accumulation in fixed flow direction.

1 . A single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping which is installed with the bidirectional fluid pumping device ( 123 ) for periodic positive and reverse directional pumping and the periodic fluid direction-change operative control device ( 250 ) for operatively controlling the bidirectional fluid pumping device ( 123 ) to the conventional cold heat absorbing device or hot heat release device, so as to allow the fluid originally pumped in fixed flow direction appear periodically alternative flow directional change, wherein:
 The bidirectional fluid pumping device ( 123 ): It is constituted by 1) the fluid pumping device capable of producing positive pressure to push fluid; 2) the fluid pumping device capable of producing negative pressure to attract fluid; or 3) the fluid pumping device having both functions of producing positive pressure to push fluid and negative pressure to attract fluid for pumping gaseous or liquid state fluids, wherein the fluid pump is driven by electric motor, engine power, or mechanical or electric power converted from other wind power, thermal energy, temperature-difference energy, or solar energy, etc;   According to above said definitions on operating functions, the selectable embodiments of said bidirectional fluid pumping device ( 123 ) include the following:   1) It is by adopting a bidirectional pumping fluid pump to suck and discharge the fluid, wherein flow direction of the fluid is periodically changed by periodically operating the pump in positive or reverse direction; or   2) It is constituted by at least unidirectional fluid pumps of different pumping directions in series connection to constitute bidirectional fluid pumping device ( 123 ) for periodically alternatively pumping to periodically exchange the fluid flow direction; or   3) It is constituted by two unidirectional pumps of different pumping directions in parallel connection for periodic alternatively pumping to periodically exchange the fluid flow directions, wherein if the pumps has no static anti-reverse flow characteristics, they can be respectively series connected with an unidirectional valve to avoid reverse flow; therefore the two pumps of different pumping directions are alternatively pumped to periodically exchange the fluid flow directions; or   4) It is constituted by at least one unidirectional flow pump and four controllable switch type fluid valves in bridge type combination, wherein the fluid flow direction is periodically changed by alternatively operatively control two fluid valves to open and the other two fluid valves to close;   The periodic fluid direction-change operative control device ( 250 ): It is constituted by electromechanical components, solid state electronic components, or microprocessors and relevant software and operative control interfaces to operatively control the bidirectional fluid pumping device ( 123 ) for periodically changing the flow direction of the fluid passing through cold heat absorbing device or hot heat release device thereby operatively controlling the temperature difference distribution status between fluid and heat exchanger inside the cold heat absorbing device or hot heat release device;   The timing for fluid periodic flow direction change can be 1) the open loop type operative control by presetting the direction-change period of fluid flow, or 2) the closed loop type operative control by detecting the temperature difference between fluid and heat exchanger at setting locations for periodic closed loop fluid flow direction change timing operative control; or 3) randomly manual change.   
   
   
       2 . A single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping as claimed in  claim 1 , wherein the embodied constitution types of applications in the cold heat absorbing device or the hot heat release device include being of the tubular structure in linear or other geometric shapes. 
   
   
       3 . A single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping as claimed in  claim 1 , wherein the embodied constitution types of applications in the cold heat absorbing device or the hot heat release device include being constituted by the multi-layer structure having fluid path for passing gaseous or liquid state fluids. 
   
   
       4 . A single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping as claimed in  claim 1 , wherein the embodied constitution types of applications in the cold heat absorbing device or the hot heat release device include being constituted by one or more than one fluid path in series connection, parallel connection or series and parallel connection.