Double flow-circuit heat exchange device for periodic positive and reverse directional pumping
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F28F-027/00
출원번호
US-0292415
(2008-11-19)
등록번호
US-8602087
(2013-12-10)
발명자
/ 주소
Yang, Tai-Her
출원인 / 주소
Yang, Tai-Her
대리인 / 주소
Bacon & Thomas, PLLC
인용정보
피인용 횟수 :
2인용 특허 :
23
초록▼
A double flow-circuit heat exchange device for periodic positive and reverse directional pumping, which has a bi-directional fluid pump. The bi-directional fluid pump produces positive pressure or negative pressure at fluid ports on two sides of the bi-directional heat exchange device to periodicall
A double flow-circuit heat exchange device for periodic positive and reverse directional pumping, which has a bi-directional fluid pump. The bi-directional fluid pump produces positive pressure or negative pressure at fluid ports on two sides of the bi-directional heat exchange device to periodically pump the fluid in positive and reverse flowing directions. During operation of the periodically positive and reverse pumping, the directional flow of the fluid in first and second flow fluid circuits are maintained in different flowing directions.
대표청구항▼
1. A system for exchanging heat between two flows of fluids in a double flow circuit heat exchange device comprising: a heat exchange device having a first flow circuit and a second flow circuit being configured to exchange heat between two flows of fluid, said first flow circuit having an inlet and
1. A system for exchanging heat between two flows of fluids in a double flow circuit heat exchange device comprising: a heat exchange device having a first flow circuit and a second flow circuit being configured to exchange heat between two flows of fluid, said first flow circuit having an inlet and an outlet and said second flow circuit having an inlet and an outlet, wherein the inlet of the first flow circuit has a first fluid port, the inlet of the second flow circuit has a second fluid port, the outlet of the first flow circuit has a third fluid port, and the outlet of the second flow circuit has a fourth fluid port;a plurality of unidirectional fluid pumps coupled to the heat exchange device, each of said plurality of unidirectional fluid pumps configured to pump a fluid, wherein a first fluid pump is coupled to the first fluid port, a second fluid pump is coupled to the second fluid port, a third fluid pump is coupled to the third fluid port, and a fourth fluid pump is coupled to the fourth fluid port;a power source configured to provide power to each of the plurality of unidirectional fluid pumps;a periodic fluid direction-change operative control device configured to control operation of each of the plurality of unidirectional fluid pumps;wherein the plurality of unidirectional fluid pumps are arranged on the respective ports of the first and second flow circuits so that the periodic fluid direction-change operative control device is operable to periodically change a fluid flow direction of a first fluid in the first flow circuit and a fluid flow direction of a second fluid in the second flow circuit. 2. The system for exchanging heat between two fluids in a double flow circuit heat exchange device as claimed in claim 1, wherein the heat exchange device is a heat exchanger having two internal flow paths with heat absorbing and releasing and humidity absorbing and releasing capability, wherein a first flow path is coupled to the first and third fluid ports and a second flow path is coupled to the second and fourth fluid ports of the respective first and second flow circuits. 3. The system for exchanging heat between two fluids in a double flow circuit heat exchange device as claimed in claim 1, wherein the periodic fluid direction-change operative control device is configured to provide one or more of the following operating functions: the plurality of unidirectional pumps are configured to pump the fluids using negative pressure, wherein the first and third unidirectional pumps on the first flow circuit form a first set of pumps, and the second and fourth unidirectional pumps on the second flow circuit form a second set of pumps, wherein the first and second sets of fluid pumps are configured to produce periodic negative pressure to pump the fluids in different flow directions;or the plurality of unidirectional pumps are configured to pump the fluids using positive pressure, wherein the first and third unidirectional pumps on the first flow circuit form a first set of pumps, and the second and fourth unidirectional pumps on the second flow circuit form a second set of fluid pumps, wherein the first and second sets of fluid pumps are configured to produce periodic positive pressure to pump the fluids in different flow directions. 4. The system for exchanging heat between two fluids in a double flow circuit heat exchange device as claimed in claim 1, wherein when the periodic fluid direction-change operative control device changes the fluid flow direction, the periodic fluid direction-change operative control device is configured to change a flow rate of the fluid flow between no flow and maximum fluid flow in a stepped operation by controlling the rotational speed of the plurality of fluid pumps from idling to the maximum speed range. 5. The system for exchanging heat between two fluids in a double flow circuit heat exchange device as claimed in claim 1, wherein when the periodic fluid direction-change operative control device changes the fluid flow direction, the periodic fluid direction-change operative control device is configured to change a flow rate of the fluid flow between no flow and maximum fluid flow in a step-less operation by controlling the rotational speed of the plurality of fluid pumps from idling to the maximum speed range. 6. The system for exchanging heat between two fluids in a double flow circuit heat exchange device as claimed in claim 1, wherein the periodic fluid direction-change operative control device is configured to control a flow rate of the first fluid in the first flow circuit and a flow rate of the second fluid in the second flow circuit relatively proportioned according to at least one of the following operational modes: the fluid flow rate of the first fluid in the first flow circuit is greater than flow rate of the second fluid in the second flow circuit;the fluid flow rate of the first and second fluid in the first and second flow circuits are the same; andwhen the plurality of unidirectional fluid pumps are configured to pump the fluid in one direction, the fluid flow rate of the first and second fluid in the first and second flow circuits are different, but when the fluid flow direction changes, the fluid flow rate of the first and second fluids in the first and second flow circuits are the same. 7. The system for exchanging heat between two fluids in a double flow circuit heat exchange device as claimed in claim 1, wherein the periodic fluid direction-change operative control device is configured so that the periodic change of the fluid flow is according to at least one of the following modes: the operational time for pumping the first fluid in a first fluid flow direction and pumping the second fluid in a second fluid flow direction are the same; andthe operational time for pumping the first and second fluids in a first fluid flow direction and a second fluid flow direction are different. 8. The system for exchanging heat between two fluids in a double flow circuit heat exchange device as claimed in claim 1, wherein the periodic fluid direction-change operative control device is further configured to simultaneously operate in at least one of the following special operational modes: pumping the first and second fluids in the first and second flow circuits are pumped in the same flowing direction;reversely pumping the first and second fluids out of the first and second flow circuits in the same flowing direction; andpositively and reversely pumping the first and second fluids in the first and second flow circuits in the same flowing direction. 9. The system for exchanging heat between two fluids in a double flow circuit heat exchange device as claimed in claim 1, wherein the periodic fluid direction-change operative control device is further configured to mitigate the impact generated by a gaseous or liquid fluid by operating in at least one of the following operational methods: when changing the fluid flow direction, the periodic fluid direction-change operative control device is configured to control the plurality of unidirectional fluid pumps so that the flow of fluid slowly reduces to no flow and then switches the direction of the fluid flow and slowly increases the flow rate of the fluid to a maximum preset value; andwhen changing the fluid flow direction, the periodic fluid direction-change operative control device is configured to control the plurality of unidirectional fluid pumps so that the flow of fluid slowly reduces to no flow, and the plurality of pumps are stopped for a preset time period, and then after the plurality of pumps are switched to pump the fluid in a different direction to slowly increase the flow rate of fluid to a maximum preset value. 10. The system for exchanging heat between two fluids in a double flow circuit heat exchange device as claimed in claim 1, further comprising a temperature detecting device; and at least one of a humidity detecting device and a gaseous or liquid state detecting device, installed at positions capable of directly or indirectly detecting the humidity variation or gaseous and liquid fluid composition variation of the pumping fluid respectively. 11. The system for exchanging heat between two fluids in a double flow circuit heat exchange device as claimed in claim 10, wherein the periodic fluid direction-change operative control device is configured to control the fluid flow direction by manipulating a flow rate each of the flows of fluid in one or more of the following operational modes: the flow rate of pumping fluid is manually adjustable;the flow rate of fluid is operatively controlled when a detected signal of the at least one temperature detecting device reaches a set value;the flow rate of fluid is operatively controlled when a detected signal of the at least one moisture detecting device reaches a set value; andthe flow rate of fluid is operatively controlled when a detected signal of the at least one gaseous or liquid composition detecting device reaches a set value.
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