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A heat exchange apparatus has four fluid ports through which a heat exchange fluid is pumped into and out of the heat exchange apparatus. First and fourth ones of the fluid sorts are on a first side of the heat exchange apparatus and second and third ones of the fluid ports (are on a second side of

A heat exchange apparatus has four fluid ports through which a heat exchange fluid is pumped into and out of the heat exchange apparatus. First and fourth ones of the fluid sorts are on a first side of the heat exchange apparatus and second and third ones of the fluid ports (are on a second side of the heat exchange apparatus. At least two fluid pumps form a double flow circuit fluid pumping device for pumping the fluid in the first direction from the first fluid port to the second fluid port and in the second direction from the third fluid port to the fourth fluid port. One or more of a temperature detecting device, humidity detecting device, and gaseous or liquid state fluid composition detecting device are installed at a position capable of detecting the temperature, humidity, and fluid composition changes of the exchange fluid. The detected signals are used as references for modulating the pumping flow rate of exchange fluid.

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1. A heat exchange apparatus with automatic flow rate exchange modulation, comprising: a heat exchange apparatus four fluid ports (a,b,c,d) through which the at least one heat exchange fluid is pumped into and out of the heat exchange apparatus, wherein first and fourth ones of the fluid ports (a,d)

1. A heat exchange apparatus with automatic flow rate exchange modulation, comprising: a heat exchange apparatus four fluid ports (a,b,c,d) through which the at least one heat exchange fluid is pumped into and out of the heat exchange apparatus, wherein first and fourth ones of the fluid ports (a,d) are on a first side of the heat exchange apparatus and second and third ones of the fluid ports (b,c) are on a second side of the heat exchange apparatus;at least two fluid pumps (111,112 or 120a,120b,120c,120d) that form a double flow circuit fluid pumping device (123) for pumping at least one heat exchange fluid through the heat exchange apparatus in the first direction via a first fluid flow port from the first fluid port (a) on the first side of the heat exchange apparatus to the second fluid port (b) on the second side of the heat exchange apparatus and in the second direction via a second fluid flow path from the third fluid port (c) on the second side of the heat exchange apparatus to the fourth fluid port (d) on the first side of the heat exchange apparatus, said first fluid flow path being different from the second fluid flow path;a power source (300) for supplying power to the at least two pumps; andan operative control device (250) for operatively controlling said at least two fluid pumps to perform at least one of the following operations in order to operatively control a temperature distribution with the heat exchange apparatus: (a) switching a pumping direction; (b) operatively controlling a flow rate of the fluid; (c) operatively controlling both the pumping direction and the flow rate, wherein a timing of said operations is preset in an open loop operative control or manually controlled. 2. The heat exchange apparatus claimed in claim 1, wherein said at least two fluid pumps are bidirectional fluid pumps installed at two said fluid ports. 3. The heat exchange apparatus claimed in claim 2, wherein said bidirectional fluid pumps are installed at two said four ports (a,b,c,d), said two ports being selected according to whether both of said bidirectional pumps are operated to generate positive pressure or negative pressure, or whether one of said bidirectional pumps is operated to generate positive pressure while the other of said two bidirectional pumps is operated to generate negative pressure. 4. The heat exchange apparatus claimed in claim 2, further comprising at least one temperature detecting device (11) installed at a position to directly or indirectly detect a temperature variation of a respective said heat exchange fluid, wherein the at least one temperature detecting device provides temperature detecting signals to said operative control device (250), and said operation of operatively controlling a temperature distribution status within the heat exchange apparatus including an operation of controlling a timing of said switching or said flow rate control to control said temperature distribution by using said temperature detecting signals as a reference. 5. The heat exchange apparatus claimed in claim 2, further comprising at least one temperature detecting device (11) or at least one humidity detecting device (21), said temperature detecting device (11) or humidity detecting device (21) installed at a position to directly or indirectly detect a temperature variation or a humidity variation within the heat exchange apparatus, wherein the at least one temperature detecting device (11) or humidity detecting device (21) respectively provide temperature or humidity detecting signals to said operative control device (250), said operation of operatively controlling a temperature distribution status within the heat exchange apparatus including an operation of controlling a timing of said switching or said flow rate control to control said temperature distribution by using said temperature detecting signals as a reference, and said humidity detecting device being arranged to provide humidity detecting signals to said operative control device (250) to operatively control a humidity distribution within said heat exchange apparatus by using said humidity detection signals as a reference to control said switching or flow rate timing. 6. The heat exchange apparatus claimed in claim 5, wherein said heat exchange apparatus includes both said at least one temperature detecting device (11) and said at least one humidity detecting device (12). 7. The heat exchange apparatus claimed in claim 2, further comprising at least one of the following: at least one temperature detecting device (11), at least one humidity detecting device (21), and at least one gaseous or liquid state fluid composition detecting device (31), said at least one temperature detecting device (11), humidity detecting device (21), or gaseous or liquid state fluid composition detecting device being installed at a position to directly or indirectly detect a temperature variation, a humidity variation, or a fluid composition variation within the heat exchange apparatus, wherein the at least one temperature detecting device (11), humidity detecting device (21), or gaseous or liquid state fluid composition detecting device (31) respectively provide temperature, humidity, or fluid composition detecting signals to said operative control device (250), said operation of operatively controlling a temperature distribution status within the heat exchange apparatus including an operation of controlling a timing of said switching or said flow rate control to control said temperature distribution by using said temperature detecting signals as a reference, said humidity detecting device being arranged to provide humidity detecting signals to said operative control device (250) to operatively control a humidity distribution within said heat exchange apparatus by using said humidity detection signals as a reference to control said switching or flow rate timing, and said gaseous or liquid state fluid composition detecting device being arranged to provide fluid composition detecting signals to said operative control device (250) as a reference to operatively control an inflow status of a respective said at least one heat exchange fluid. 8. The heat exchange apparatus claimed in claim 7, wherein said heat exchange apparatus includes two different ones of said at least one temperature detecting device (11), said at least one humidity detecting device (12), and said at least one temperature detecting device (31). 9. The heat exchange apparatus claimed in claim 7, wherein said operative control device (250) controls said switching or flow rate timing by operatively controlling said pumps. 10. The heat exchange apparatus claimed in claim 1, wherein said at least two fluid pumps include a first unidirectional pump (120a) installed at the first fluid port (a), a second unidirectional pump (120b) installed at the second fluid port (b), a third unidirectional pump (120c) installed at the third fluid port (c), and a fourth unidirectional pump (120d) installed at the fourth fluid port (d), wherein said first and second unidirectional fluid pumps (120a,120b) operate to pump fluid in the first direction and the third and fourth unidirectional pumps (120c,120d) operate to pump said fluid in the second direction, and wherein switching between operation of the first and second unidirectional pumps (120a,120b) and operation of the third and fourth unidirectional pumps (120c,120d) switches a fluid flow direction within the heat exchange apparatus. 11. The heat exchange apparatus as claimed in claim 10, wherein at least one of said first and third unidirectional pumps (120a,120c) is operated to generate positive pressure and at least one of said second and fourth unidirectional pumps (120b,120d) is operated to generate negative pressure. 12. The heat exchange apparatus as claimed in claim 10, further comprising at least one temperature detecting device (11) installed at a position to directly or indirectly detect a temperature variation of a respective said heat exchange fluid, wherein the at least one temperature detecting device provides temperature detecting signals to said operative control device (250), and said operation of operatively controlling a temperature distribution status within the heat exchange apparatus including an operation of controlling a timing of said switching or said flow rate control to control said temperature distribution by using said temperature detecting signals as a reference. 13. The heat exchange apparatus as claimed in claim 10, further comprising at least one temperature detecting device (11) or at least one humidity detecting device (21), said temperature detecting device (11) or humidity detecting device (21) installed at a position to directly or indirectly detect a temperature variation or a humidity variation within the heat exchange apparatus, wherein the at least one temperature detecting device (11) or humidity detecting device (21) respectively provide temperature or humidity detecting signals to said operative control device (250), said operation of operatively controlling a temperature distribution status within the heat exchange apparatus including an operation of controlling a timing of said switching or said flow rate control to control said temperature distribution by using said temperature detecting signals as a reference, and said humidity detecting device being arranged to provide humidity detecting signals to said operative control device (250) to operatively control a humidity distribution within said heat exchange apparatus by using said humidity detection signals as a reference to control said switching or flow rate timing. 14. The heat exchange apparatus as claimed in claim 13, wherein said heat exchange apparatus includes both said at least one temperature detecting device (11) and said at least one humidity detecting device (12). 15. The heat exchange apparatus as claimed in claim 10, further comprising at least one of the following: at least one temperature detecting device (11), at least one humidity detecting device (21), and at least one gaseous or liquid state fluid composition detecting device (31), said at least one temperature detecting device (11), humidity detecting device (21), or gaseous or liquid state fluid composition detecting device (31) being installed at a position to directly or indirectly detect a temperature variation, a humidity variation, or a gaseous or liquid state fluid composition variation within the heat exchange apparatus, wherein the at least one temperature detecting device (11), humidity detecting device (21), or gaseous or liquid state fluid composition detecting device (31) respectively provide temperature, humidity, or fluid composition detecting signals to said operative control device (250), said operation of operatively controlling a temperature distribution status within the heat exchange apparatus including an operation of controlling a timing of said switching or said flow rate control to control said temperature distribution by using said temperature detecting signals as a reference, said humidity detecting device being arranged to provide humidity detecting signals to said operative control device (250) to operatively control a humidity distribution within said heat exchange apparatus by using said humidity detection signals as a reference to control said switching or flow rate timing, and said gaseous or liquid state fluid composition detecting device being arranged to provide fluid composition detecting signals to said operative control device (250) as a reference to operatively control an inflow status of a respective said at least one heat exchange fluid. 16. The heat exchange apparatus as claimed in claim 15, wherein said heat exchange apparatus includes two different ones of said at least one temperature detecting device (11), said at least one humidity detecting device (12), and said at least one temperature detecting device (31). 17. The heat exchange apparatus as claimed in claim 15, wherein said operative control device (250) controls said switching or flow rate timing by operatively controlling said unidirectional pumps. 18. The heat exchange apparatus as claimed in claim 1, wherein the control device (250) is arranged to operatively control a timing of said at least two fluid pumps (111,112 or 120a,120b,120c,120d) that form a double flow circuit fluid pumping device (123) to change a direction of the fluid passing through the heat exchange apparatus and further to provide at least partial regulation of pump rotational speed, flow rate, and fluid pressure of individual said at least two fluid pumps (111,112 or 120a,120b,120c,120d) that form a double flow circuit fluid pumping device (123). 19. The heat exchange apparatus as claimed in claim 1, further comprising at least one of a temperature detecting device, a humidity detecting device, and a gaseous or liquid state fluid composition detecting device, wherein the at least two fluid pumps (111,112 or 120a,120b,120c,120d) that form a double flow circuit fluid pumping device (123) are operatively controlled by the operative control device (250) according to at least one of the following operative control modes: (a) adjustment or setting of a pumping fluid flow rate is manually controlled;(b) the flow rate is operatively controlled by referring to a signal detected by at least one temperature detecting device;(c) the flow rate is operatively controlled by referring to a signal detected by at least one humidity detecting device;(d) the flow rate is operatively controlled by referring to a signal detected by at least one gaseous or liquid state gaseous or liquid state fluid composition detecting device; and(e) the flow rate is operatively controlled by two or more of said modes (a) to (d). 20. The heat exchange apparatus as claimed in claim 1, wherein operative control of flow rate of the at least one heat exchange fluid is achieved by: (a) operatively controlling a rotational speed of said at least two fluid pumps (111,112 or 120a,120b,120c,120d) that form a double flow circuit fluid pumping device (123);(b) operatively controlling said at least two fluid pumps (111,112 or 120a,120b,120c,120d) that form a double flow circuit fluid pumping device (123) to pump the fluid intermittently in order to modulate an average flow rate according to pumping on/off time ratio. 21. The heat exchange apparatus as claimed in claim 1, wherein a ratio of flow rates in said first and second fluid flow directions is one of the following: (a) the flow rate in one said direction is greater than a flow rate in the other said direction;(b) the flow rate in said directions is equal; and(c) said pumps operating in different directions alternately pump the fluid streams in said first and second directions. 22. The heat exchange apparatus as claimed in claim 1, wherein said at least two fluid pumps (111,112 or 120a,120b,120c,120d) that form a double flow circuit fluid pumping device (123) are further arranged to pump said fluid into said heat exchange apparatus in same flow directions, to reversely pump said fluid out of said heat exchange apparatus, or to periodically pump said fluid into the heat exchange apparatus in same flow directions and out of said heat exchange apparatus in reverse flow directions.