Fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change

• US 20100122804A1
• Filed: 11/19/2008
• Published: 05/20/2010
• Est. Priority Date: 11/19/2008
• Status: Active Grant

• Current Assignee: Tai-Her Yang
• Original Assignee: Tai-Her Yang
• Inventors: Yang, Tai-Her
• Granted Patent: US 8,607,854 B2
• Time in Patent Office: Days
• US Class Current: 165/164
• CPC Class Codes: F28D 21/00 Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
• CPC Class Codes: F28F 13/06 by affecting the pattern of flow of the heat-exchange media F28F13/003 takes precedence; static flow control means in header boxes F28F9/026
• CPC Class Codes: F28F 27/02 for controlling the distribution of heat-exchange media between different channels static flow control means in header boxes F28F9/026; arrangements of guide plates or guide vanes F28F9/22, F28F25/12

Abstract

The present invention discloses that the fluids of temperature difference are transported in counter flow directions on the same end sides of the first transfer pipe and second transfer pipe being in parallel or quasi-parallel arrangement thus allowing the thermal conducting fluid to perform heat absorbing or heat dissipating functions onto the fluid heat transfer device (100) or passively heat dissipation or absorption receiving article or space (200) thereby forming the more uniform temperature distribution status.

Claims

1. A fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change discloses a device having multiple piping to pass through thermal conducting fluid simultaneously in counter flow directions and performing periodic flow directional change simultaneously as the heat absorbing or dissipating body, which is parallel or quasi-parallel installed with the first fluid piping of at least one circuit and the second fluid piping of at least one circuit, wherein said first fluid piping and second fluid piping is configured to simultaneously transport the thermal conducting fluids constituted by gaseous or liquid state fluid, gaseous to liquid state fluid or liquid to gaseous state fluid of temperature difference to passively heat dissipation or absorption receiving article or space in counter flow directions to produce heat absorbing or dissipating function onto the passively heat dissipation or absorption receiving article or space thereby forming a more uniform temperature distribution status on the passively heat dissipation or absorption receiving article or space, and it is further through the periodic fluid direction-change operative control device to perform the periodic flow directional change control onto the power source driven bidirectional fluid pumping device to simultaneously periodically change the flow directions of the fluids inside the two counter flow piping while still maintaining the transported fluid at mutual counter flow status.

2. A fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change as claimed in claim 1, wherein it mainly comprises the following:

The fluid heat transfer device (100);

It is the heat absorbing or dissipating structural body made of solid, colloidal, liquid or gaseous state thermal conductive material for receiving the thermal energy of thermal conducting fluid (110) including gaseous or liquid state fluid, gaseous to liquid state fluid, or liquid to gaseous state fluid inside first fluid piping (101) and second fluid piping (102) being combined with the structure so as to perform heat absorbing cooling energy discharge operating function or heat dissipating warming energy discharge operating function onto the passively heat dissipation or absorption receiving solid, colloidal, liquid or gaseous state article or space (200), wherein the number of the fluid heat transfer device (100) can be one or more than one;

The first fluid piping (101), the second fluid piping (102);

It is made of good thermal conductive material for reversely transporting the thermal conducting fluid (110) constituted by gaseous or liquid state liquid, gaseous to liquid state fluid, or liquid to gaseous state fluid for transferring warming energy to fluid heat transfer device (100) being made of solid, colloidal, liquid or gaseous state thermal conductive material, wherein the first fluid piping (101) and second fluid piping (102) can be respectively constituted by one or more than one circuits;

The fluid port (111) of aforesaid first fluid piping (101) and the fluid port (121) of aforesaid second fluid piping (102) are parallel connected and further interconnected with the common fluid inlet/outlet port (131) for receiving the inlet/outlet flow of thermal conducting fluid (110) being pumped by bidirectional fluid pumping device (123) from the fluid source;

while the fluid port (112) of first fluid piping (101) and the fluid port (122) of second fluid piping (102) are parallel connected and further interconnected with common fluid inlet/outlet port (132) for receiving the inlet/outlet flow of thermal conducting fluid (110) being pumped by bidirectional fluid pumping device (123) from the fluid source;

Said first fluid piping (101) and second fluid piping (102) being in parallel or quasi-parallel arrangement are distributingly installed on the fluid heat transfer device in plane or 3D shape, wherein it is characterized as that the first fluid piping port (111) and the second fluid piping port (122) are made neighboring to each other at a position on the fluid heat transfer device (100), while the first fluid piping port (112) and the second fluid piping port (121) are made neighboring to each other at another position on the fluid heat transfer device (100), wherein the first fluid piping (101) and second fluid piping (102) being installed on the fluid heat transfer device (100) are made to respectively reversely transporting the thermal conducting fluid (110) in two flow circuits to commonly provide a more uniform temperature difference distribution on the fluid heat transfer device (100) so as to perform heat absorption or dissipation onto the passively heat dissipation or absorption receiving solid, colloidal, liquid or gaseous state article or space (200);

wherein its main characteristic is to further install the bidirectional fluid pumping device (123) capable of pumping in positive and reverse flow directions, thereby through the power source (300) to drive the bidirectional fluid pumping device (123) by the periodic fluid direction-change operative control device (250) to periodically change the pumping flow direction of the fluid while maintaining the two flow circuits in different flow directions to pass through the first fluid piping (101) and the second fluid piping (102) in counter flow directions;

wherein;

The bidirectional fluid pumping device (123);

The bidirectional fluid pumping device is constituted by the fluid pump capable of producing positive pressure to push fluid, or producing negative pressure to attract fluid for pumping the gaseous or liquid state fluid, wherein the bidirectional fluid pumping device (123) is driven by the power of the power source (300) and operatively controlled by the periodic fluid direction-change operative control device (250) to pump the fluid in different flow directions, while the flow directions of the two fluid circuits are periodically exchanged during the operation;

The said pumping includes;

     1) to produce negative pressure for pumping fluids, or

     2) to produce positive pressure for attracting fluids, or

     3) to simultaneously produce negative pressure at the outlet port for pumping fluid and positive pressure at inlet port for auxiliary pumping fluid;

The power source (300);

The device which provides the operating power source, including AC or DC city power system or standalone electric power supplying devices;

The periodic fluid direction-change operative control device (250);

It is constituted by electromechanical components, solid state electronic components, or microprocessors and related software and operative control interfaces to operatively control the bidirectional fluid pumping device (123) for periodically changing the flow directions of the two fluids passing through fluid heat transfer device (100) in different flow directions thereby operatively controlling the temperature difference distribution status between the fluid and fluid heat transfer device (100);

The timings for periodic fluid directional change are;

     1) the pumping flow direction of the bidirectional fluid pumping device (123) is manually operatively controlled;

or

     2) the direction-change time period is set by the periodic fluid direction-change operative control device (250) to operatively control the pumping flow direction of bidirectional fluid pumping device (123);

The bidirectional fluid pumping device (123) and the fluid heat transfer device (100) of the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention are constructed to an integral structure or in the separated structures.

3. A fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change as claimed in claim 2, wherein the temperature detecting device (11) can be further optionally installed at one or more than one places on the fluid heat transfer device (100) so as to provide the detected temperature value as a reference for operative control the periodic flow directional change timing of the fluid, as well as the bidirectional fluid pumping device (123) capable of positive and reverse flow directional pumping can be installed, thereby being driven by power source (300) and operatively controlled by periodic fluid direction-change operative control device (250) to perform one or more than one functional operations of the following, including:

1) the pumping flow direction of the fluid is periodically changed, while the fluid of the two flow circuits are maintained in different flow directions to pass through the first fluid piping (101) and the second fluid piping (102) in counter flow directions;

or

     2) the flow rate of the pumping fluid is further operatively controlled;

The timings for periodic fluid directional change are;

     1) the pumping flow direction of the bidirectional fluid pumping device (123) is manually operatively controlled;

or

     2) the direction-change time period is set by periodic fluid direction-change operative control device (250) according to set time period or set time period by referring to temperature variation to operatively control the pumping flow direction of bidirectional fluid pumping device (123);

or

     3) the temperature value detected by temperature detecting device (11) installed on the fluid heat transfer device (100) is used as the reference for operatively controlling the timing of periodic flow directional change.

4. A fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change as claimed in claim 2, wherein the embodiments of the bidirectional fluid pumping device (123) thereof are optionally selected to include but not be limited to one or more than one of the following structures, including:

1) By adopting at least one fluid pump (124) capable of bidirectional fluid pumping to constitute the function of bidirectional fluid pumping device (123), wherein it is installed between either one of the common fluid inlet/outlet ports of first fluid piping (101) and second fluid piping (102) of the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention and the fluid source for operatively controlling the fluid pump (124) capable of bidirectional fluid pumping for periodic positive or reverse directional pumping to periodically exchange the flow directions of the fluids;

2) It is by adopting at least two fluid pumps (124) capable of bidirectional fluid pumping to constitute the bidirectional fluid pumping device (123), which are configured to be respectively installed between the fluid source and any one of the common fluid inlet/outlet ports of first fluid piping (101) and second fluid piping (102) for simultaneous auxiliary pumping in the same direction and for the operation of simultaneous periodic pumping flow directional change;

3) It is by adopting at least two fluid pumps (124) (124′

) capable of bidirectional fluid pumping installed to the respective fluid inlet/outlet ports at one end of the first fluid piping (101) and second fluid piping (102) of the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change to constitute the function of bidirectional fluid pumping device (123), wherein the bidirectional fluid pump (124) and bidirectional fluid pump (124′

) for pumping the fluid from the common fluid source being in positive and reverse flow directional relationship are operatively controlled by the periodic fluid direction-change operative control device (250) to periodically alternatively exchange the fluid flow directions;

wherein the respective fluid inlet/outlet ports at the other end of aforesaid first fluid piping (101) and second fluid piping (102) are further installed with at least two bidirectional fluid pumps (124), (124′

) being operatively controlled by the periodic fluid direction-change operative control device (250) to periodically alternatively exchange the fluid flow directions while bidirectional fluid pumps of the same piping are driven in the same flow direction for auxiliary fluid pumping;

4) At least two unidirectional fluid pumps (120) (120′

) in different flow directions being series connected to constitute the function of bidirectional fluid pumping device (123) are series connected between both or one of the two fluid inlet/outlet ports for fluid input/output of the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention, while pumping flow directions of the unidirectional fluid pump (120) in positive flow direction and unidirectional fluid pump (120′

) in reverse flow direction are periodically alternatively exchanged, wherein if flow directions of the unidirectional fluid pumps (120) (120′

) are irreversible, then each unidirectional fluid pump is respectively parallel connected with an unidirectional valve (126) in the reverse flow direction;

5) At least four unidirectional fluid pumps, two of them are unidirectional fluid pumps (120) in positive flow directions and two of them are unidirectional fluid pumps (120′

) in reverse flow directions, wherein one unidirectional fluid pump (120) in positive flow direction and one unidirectional fluid pump (120′

) in reverse flow direction being series connected to constitute the function of bidirectional fluid pumping device (123) are series connected in the middle section of first fluid piping (101), wherein if flow directions of the unidirectional fluid pumps (120) (120′

) are irreversible, then each unidirectional fluid pump is respectively parallel connected with an unidirectional valve (126) in the reverse flow direction;

The other unidirectional fluid pump (120) in positive flow direction and the other unidirectional fluid pump (120′

) in reverse flow direction being series connected to constitute the function of bidirectional fluid pumping device (123) are series connected in the middle section of second fluid piping (102), wherein if flow directions of the unidirectional fluid pumps (120) (120′

) are irreversible, then each unidirectional fluid pump is respectively parallel connected with an unidirectional valve (126) in the reverse flow direction, wherein the unidirectional fluid pump (120) in positive flow direction and the unidirectional fluid pump (120′

) in reverse flow direction being installed on the first fluid piping and the second fluid piping in different flow directions are operatively controlled to allow the unidirectional fluid pumps being installed on first fluid piping (101) and second fluid piping (102) in different flow directions to be pumped in different flow directions and to periodically alternatively exchange the pumping flow directions;

6) At least two unidirectional fluid pumps (120) (120′

) in different flow directions being parallel connected to constitute the function of bidirectional fluid pumping device (123) in parallel connection are installed to both or one of the two fluid inlet/outlet ports for fluid input/output of the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of present invention, while unidirectional fluid pumps in different flow directions are periodically alternatively operatively controlled for periodic flow directional pumping, wherein if the structure of the unidirectional fluid pump has no anti-reverse flow function, then each unidirectional fluid pump is respectively forwardly series connected with an unidirectional valve (126) first and then parallel connected to avoid anti-reverse flow;

7) At least four unidirectional fluid pumps, two of them are unidirectional fluid pumps (120) in positive flow directions and two of them are unidirectional fluid pumps (120′

) in reverse flow directions, wherein one unidirectional fluid pump (120) in positive flow direction and one unidirectional fluid pump (120′

) in reverse flow direction being parallel connected to constitute the function of bidirectional fluid pumping device (123) are series connected in the middle section of first fluid piping (101), wherein if the structure of the unidirectional fluid pump has no anti-reverse flow function, then each unidirectional fluid pump is respectively series connected with an unidirectional valve (126) and then parallel connected to avoid reverse flow;

The other unidirectional fluid pump (120) in positive flow direction and the other unidirectional fluid pump (120′

) in reverse flow direction being installed in the middle section of second fluid piping (102), wherein if the structure of the unidirectional fluid pump has no anti-reverse flow function, then each unidirectional fluid pump is respectively series connected with an unidirectional valve (126) and then further parallel connected to avoid reverse flow, wherein the unidirectional fluid pump (120) in positive flow direction and the unidirectional fluid pump (120′

) in reverse flow direction being installed on the first fluid piping (101) and second fluid piping (102) in different flow directions are operatively controlled to allow the unidirectional fluid pumps being installed on first fluid piping (101) and second fluid piping (102) in different flow directions to be pumped in different flow directions and to periodically alternatively exchange the pumping flow directions;

8) The bidirectional fluid pumping device (123) constituted by at least one unidirectional fluid pump (120) and four fluid valves capable of switching operative control in bridge type assembly including two fluid valves (129) and two fluid valves (129′

) are installed to the fluid ports for external fluid input/output of fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention, wherein during the operation of the unidirectional fluid pump, the two fluid valves (129) are operatively controlled to be opened or closed, while the other two fluid valves (129′

) are operatively controlled to be closed or opened thereby exchanging the fluid flow directions periodically.

5. A fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change as claimed in claim 1 or 2, wherein one or more than one design method is made in the following:

The fluid heat transfer device (100) is assembly combined with at least one of the first fluid piping (101) and second fluid piping (102);

The fluid heat transfer device (100) is integrally combined with at least one of the first fluid piping (101) and second fluid piping (102);

At least one of the first fluid piping (101) and second fluid piping (102) directly constitute the function of the fluid heat transfer device (100) to perform heat absorption or dissipation onto the passively heat dissipation and absorption receiving solid, colloidal, liquid or gaseous state article or space (200) without installing the fluid heat transfer device (100);

The structural relationships between bidirectional fluid pumping device (123), first fluid piping (101), and second fluid piping (102) are that they are separately installed or integrally combined;

The structural relationships between bidirectional fluid pumping device (123), first fluid piping (101), second fluid piping (102), and fluid heat transfer device (100) are that all or at least two of them are integrally combined, or they are separately installed;

For the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention, the first fluid piping (101) and second fluid piping (102) are constituted by the piping being directly made from the integrally combined internal structure of fluid heat transfer device (100);

For the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention, the three including first fluid piping (101), second fluid piping (102) and fluid heat transfer device (100) are in assembled structure.

6. A fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change as claimed in claim 1 or 2, wherein in practical practices the geometric shape of the application structure can be optionally made as needed by one or more than one methods of the following:

For the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention, the fluid heat transfer device (100) being combined with first fluid piping (101) and second fluid piping (102) is constituted by the structure body of a single plate, block or multi-fins shaped structure unit, or the structure unit assembled with fins, and it is constituted by at least one structure unit as needed;

For the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention, the three including fluid heat transfer device (100), first fluid piping (101) and second fluid piping (102) made of solid, colloidal, liquid or gaseous state thermal conductive material can be made to various geometric shapes without changing principles;

For the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention, the first fluid piping (101) and second fluid piping (102) can be made to the common structure in various geometric shapes without changing principles.

7. A fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change as claimed in claim 1 or 2, wherein the thermal conducting fluid types and thermal conduction operating methods for applications are constituted by one or more than one of the following to include:

For the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention, the thermal conducting fluid (110) is constituted by gaseous or liquid state, or gaseous to liquid state fluid, or liquid to gaseous state fluid;

For the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention, the thermal conducting fluid (110) is pumped, evaporated, or transported by cold and hot natural convection to pass through first fluid piping (101) and second fluid piping (102);

The fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention is through heat transfer functions such as natural convention driven by cold to hot fluids in temperature difference, or forcedly pumping the fluid to produce convection, radiation, or thermal conduction to release warming or cooling energy onto the passively heat dissipation or absorption receiving solid, colloidal, liquid or gaseous state article or space (200) in fluid convection status;

or it is through thermal conduction method to release warming or cooling energy onto the passively heat dissipation or absorption receiving solid, colloidal, liquid or gaseous state article or space (200);

For the fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change of the present invention, the thermal conduction fluid (110) passing through first fluid piping (101) and second fluid piping (102) is in closed loop circulation or is released in effluence.

8. A fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change as claimed in claim 1 or 2, wherein the periodic fluid direction-change operative control device (250) is equipped with electric motor, or controllable engine power, or mechanical or electric power generated or converted from other wind energy, thermal energy, temperature-difference energy, or solar energy for controlling various fluid pumps for driven, or controlling the operation timing of the fluid pumps or fluid valves, thereby changing the direction of the two circuits passing through the fluid heat transfer device (100) and further to operatively control partial or all regulations of rotational speed, flow rate, fluid pressure of various fluid pumps thereof.

9. A fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change as claimed in claim 1 or 2, wherein it is applied for various heat absorbing or dissipating, or cooling heat transfer application devices, such as engine cooling water radiators, heat absorbing cooling energy discharge device using thermal conducting fluid, or heat dissipating warming energy discharge device using thermal conducting fluid such as warm energy, heater or thermal energy transfer devices for warming equipments, heating or cooling for ceilings, walls or floors of the buildings, cooling of photovoltaic panels, heating or cooling for electrical machine or power machineries, heat absorption and dissipation of various machine casings, heat pipe structures, structure casings, IC chips or semiconductor components, ventilation devices, or the heat absorption, heat dissipation or thermal energy transfer of information, audio or image devices, or heat dissipation of various lamp or LED devices, or the heat absorption of the evaporator or heat dissipation or thermal energy transfer of condensers of air conditioning devices, or thermal energy transfer of mechanical devices, or heat dissipation of frictional heat loss, or heat dissipation or thermal energy transfer of electric heater or other electric heating home appliances or cooking devices, or heat absorption or thermal energy transfer of flame heating stoves or cooking devices, or heat absorption, heat dissipation or thermal energy transfer of earth layer or water thermal energy, plant or housing building or building material or building spaces, heat absorbing or dissipation of water tower, or heat absorption, heat dissipation or thermal energy transfer of batteries of fuel cells.

10. A fluid heat transfer device having multiple counter flow circuits of temperature difference with periodic flow directional change as claimed in claim 1 or 2, wherein it is applied for thermal energy transfer in home appliances, industrial products, electronic products, electrical machines or mechanical devices, power generation equipments, buildings, air conditioning devices, industrial equipments or industrial manufacturing process.