US20100018680A1 - Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping - Google Patents
Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping Download PDFInfo
- Publication number
- US20100018680A1 US20100018680A1 US12/219,472 US21947208A US2010018680A1 US 20100018680 A1 US20100018680 A1 US 20100018680A1 US 21947208 A US21947208 A US 21947208A US 2010018680 A1 US2010018680 A1 US 2010018680A1
- Authority
- US
- United States
- Prior art keywords
- fluid
- pumping
- heat absorbing
- release device
- periodic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/08—Fluid driving means, e.g. pumps, fans
Definitions
- 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.
- FIG. 1 is a main structure block schematic view of the conventional single flow circuit flow pumping device in fixed flow direction being applied in the cold heat absorbing device or hot heat release device; as shown in FIG. 1 , the fluid is pumped in the fluid port at the side of different temperature space and discharged out of the fluid port at another side of different temperature space by the fluid pumping device ( 120 ) usually in fixed flow direction, and as the fluid flow direction is fixed, the temperature difference distribution gradient inside cold heat absorbing device or hot heat release device is unchanged.
- the present invention discloses that the conventional cold heat absorbing device or hot heat release device having pumping fluids at fixed flow directions is made to have the single flow-circuit heat exchange device for periodic positive and reverse directional pumping thereby obtaining the following advantages: 1) it is through the periodic positive and reverse pumping fluid in different flow directions in heat exchange applications to change the internal temperature difference conditions of cold heat absorbing device or hot heat release device being operated for heat absorbing and release functions thereby promoting the heat exchange efficiency; 2) The impurities brought in by the fluid flow at previous flow direction are discharged by the single flow circuit periodic positive and reverse directional pumping fluid thereby reducing the disadvantages of impurity accumulations at fixed flow direction.
- FIG . 1 is a schematic view showing structural principles of the conventional cold heat absorbing device or hot heat release device.
- FIG. 2 is the first schematic view showing operating principles of the single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping of the present invention.
- FIG. 3 is the second schematic view showing structure principles of the single flow circuit heat exchange device having the fluid bidirectional pumping device ( 123 ) being constituted by two unidirectional fluid pumps in different flow pumping directions.
- the conventional cold heat absorbing device or hot heat release device 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 ) 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;
- the selectable embodiments of said bidirectional fluid pumping device ( 123 ) include the following:
- 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
- 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.
- FIG. 2 is the first schematic view showing operating principles of the single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping of the present invention, wherein the fluid in cold heat absorbing device or hot heat release device is operated for periodic pumping directional change, such as that as shown in FIG.
- bidirectional fluid pumping device ( 123 ) of the single flow circuit heat exchange device for periodic positive and reverse directional pumping can be selected to be constituted by two unidirectional fluid pumps having different pumping direction in series connection to constitute the function of bidirectional fluid pumping device ( 123 ).
- FIG. 3 is the second schematic view showing structure principles of the single flow circuit heat exchange device having the bidirectional fluid pumping device ( 123 ) being constituted by two unidirectional fluid pumps in different flow pumping directions, wherein the fluid inside the cold heat absorbing device or hot heat release device is operatively controlled for periodically alternative pumping directional change, such as that as shown in FIG.
- the cold heat absorbing device or hot heat release device of the single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping is embodied to have the following characteristics: 1) it is of the tubular structure in linear or other geometric shapes; 2) it is constituted by the multi-layer structure having fluid path for passing gaseous or liquid state fluids; or 3) it is constituted by one or more than one fluid path in series connection, parallel connection or series and parallel connection.
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.
Description
- (a) Field of the Invention
- 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.
- (b) Description of the Prior Art
-
FIG. 1 is a main structure block schematic view of the conventional single flow circuit flow pumping device in fixed flow direction being applied in the cold heat absorbing device or hot heat release device; as shown inFIG. 1 , the fluid is pumped in the fluid port at the side of different temperature space and discharged out of the fluid port at another side of different temperature space by the fluid pumping device (120) usually in fixed flow direction, and as the fluid flow direction is fixed, the temperature difference distribution gradient inside cold heat absorbing device or hot heat release device is unchanged. - The present invention discloses that the conventional cold heat absorbing device or hot heat release device having pumping fluids at fixed flow directions is made to have the single flow-circuit heat exchange device for periodic positive and reverse directional pumping thereby obtaining the following advantages: 1) it is through the periodic positive and reverse pumping fluid in different flow directions in heat exchange applications to change the internal temperature difference conditions of cold heat absorbing device or hot heat release device being operated for heat absorbing and release functions thereby promoting the heat exchange efficiency; 2) The impurities brought in by the fluid flow at previous flow direction are discharged by the single flow circuit periodic positive and reverse directional pumping fluid thereby reducing the disadvantages of impurity accumulations at fixed flow direction.
- FIG .1 is a schematic view showing structural principles of the conventional cold heat absorbing device or hot heat release device.
-
FIG. 2 is the first schematic view showing operating principles of the single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping of the present invention. -
FIG. 3 is the second schematic view showing structure principles of the single flow circuit heat exchange device having the fluid bidirectional pumping device (123) being constituted by two unidirectional fluid pumps in different flow pumping directions. -
- 100: Cold heat absorbing device or hot heat release device
- 120: Fluid pumping device in fixed flow direction
- 123: Bidirectional fluid pumping device
- 250: Periodic fluid direction-change operative control device (250)
- a, b: Fluid port
- For the single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping of the present invention, the conventional cold heat absorbing device or hot heat release device 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) 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.
-
FIG. 2 is the first schematic view showing operating principles of the single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping of the present invention, wherein the fluid in cold heat absorbing device or hot heat release device is operated for periodic pumping directional change, such as that as shown inFIG. 3 for the example of the heat dispenser for heat release to indoors in cold winter times, wherein the indoor higher temperature air flow is pumped to the hot heat release device via fluid port (a) and is discharged via fluid port (b) by the bidirectional pumping device (123), the hot heat release device is then gradually formed with a temperature distribution from high temperature at fluid port (a) to the lower temperature at fluid port (b), and the pumping direction of the bidirectional pumping device (123) is further operatively controlled manually or by the periodic fluid direction-change operative control device (250) to pump the fluid in reverse direction, wherein the higher temperature fluid is pumped to the hot heat release device via fluid port (b) and is discharged via fluid port (a), and hot heat release device is then gradually formed with a temperature distribution from lower temperature at fluid port (b) to gradually rise to the higher temperature at fluid port (a), so that temperature distribution status on the hot heat release device is changed by the periodic positive and reverse directional pumping fluid; - Further, the bidirectional fluid pumping device (123) of the single flow circuit heat exchange device for periodic positive and reverse directional pumping can be selected to be constituted by two unidirectional fluid pumps having different pumping direction in series connection to constitute the function of bidirectional fluid pumping device (123).
-
FIG. 3 is the second schematic view showing structure principles of the single flow circuit heat exchange device having the bidirectional fluid pumping device (123) being constituted by two unidirectional fluid pumps in different flow pumping directions, wherein the fluid inside the cold heat absorbing device or hot heat release device is operatively controlled for periodically alternative pumping directional change, such as that as shown inFIG. 3 for the example of the heat dispenser for heat release to indoors in cold winter times, wherein the indoor higher temperature air flow is pumped to hot heat release device via fluid port (a) and is discharged via fluid port (b) by the bidirectional fluid pumping device (123), the hot heat release device is then gradually formed with a temperature distribution from high temperature at fluid port (a) to the lower temperature at fluid port (b), and the pumping direction of the bidirectional fluid pumping device (123) is further operatively controlled manually or by the periodic fluid direction-change operative control device (250) to pump the fluid in reverse direction; wherein the fluid of higher temperature fluid is pumped to the hot heat release device via fluid port (b) and is discharged via fluid port (a), and the hot heat release device is then gradually formed with a temperature distribution from lower temperature at fluid port (b) to the higher temperature at fluid port (a), so that temperature distribution status on the hot heat release device is changed by the periodic positive and reverse directional pumping fluid. - The cold heat absorbing device or hot heat release device of the single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping is embodied to have the following characteristics: 1) it is of the tubular structure in linear or other geometric shapes; 2) it is constituted by the multi-layer structure having fluid path for passing gaseous or liquid state fluids; or 3) it is constituted by one or more than one fluid path in series connection, parallel connection or series and parallel connection.
Claims (4)
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.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/219,472 US20100018680A1 (en) | 2008-07-23 | 2008-07-23 | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping |
CN 200920164290 CN201662349U (en) | 2008-07-23 | 2009-07-17 | Periodic forward and backward pumping single-flow-path heat adsorption and release device |
CA 2672896 CA2672896A1 (en) | 2008-07-23 | 2009-07-17 | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping |
CN200910158058.8A CN101634536B (en) | 2008-07-23 | 2009-07-17 | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping |
BRPI0902599 BRPI0902599A2 (en) | 2008-07-23 | 2009-07-22 | single flow circuit heat absorption / release device for periodic positive and reverse directional pumping |
JP2009170804A JP2010032207A (en) | 2008-07-23 | 2009-07-22 | Heat absorbing/releasing device |
TW098124662A TW201013149A (en) | 2008-07-23 | 2009-07-22 | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping |
TW098213369U TWM384935U (en) | 2008-07-23 | 2009-07-22 | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping |
EP20090251864 EP2148164A2 (en) | 2008-07-23 | 2009-07-23 | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping |
SG200904979-2A SG158832A1 (en) | 2008-07-23 | 2009-07-23 | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/219,472 US20100018680A1 (en) | 2008-07-23 | 2008-07-23 | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100018680A1 true US20100018680A1 (en) | 2010-01-28 |
Family
ID=41567581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/219,472 Abandoned US20100018680A1 (en) | 2008-07-23 | 2008-07-23 | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping |
Country Status (3)
Country | Link |
---|---|
US (1) | US20100018680A1 (en) |
CN (1) | CN101634536B (en) |
TW (2) | TW201013149A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160365466A1 (en) * | 2013-04-29 | 2016-12-15 | Solaero Technologies Corp. | Inverted metamorphic multijunction solar subcells coupled with germanium bottom subcell |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103438536A (en) * | 2012-08-03 | 2013-12-11 | 摩尔动力(北京)技术股份有限公司 | Energy-saving air changing device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6453993B1 (en) * | 2000-05-17 | 2002-09-24 | Carrier Corporation | Advanced starting control for multiple zone system |
US8100172B2 (en) * | 2006-05-26 | 2012-01-24 | Tai-Her Yang | Installation adapted with temperature equalization system |
CA2672896A1 (en) * | 2008-07-23 | 2010-01-23 | Tai-Her Yang | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping |
-
2008
- 2008-07-23 US US12/219,472 patent/US20100018680A1/en not_active Abandoned
-
2009
- 2009-07-17 CN CN200910158058.8A patent/CN101634536B/en not_active Expired - Fee Related
- 2009-07-22 TW TW098124662A patent/TW201013149A/en unknown
- 2009-07-22 TW TW098213369U patent/TWM384935U/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160365466A1 (en) * | 2013-04-29 | 2016-12-15 | Solaero Technologies Corp. | Inverted metamorphic multijunction solar subcells coupled with germanium bottom subcell |
Also Published As
Publication number | Publication date |
---|---|
TW201013149A (en) | 2010-04-01 |
TWM384935U (en) | 2010-07-21 |
CN101634536A (en) | 2010-01-27 |
CN101634536B (en) | 2013-04-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN203719266U (en) | Refrigerating system for variable frequency air conditioner and variable frequency air conditioner with refrigerating system | |
US9207020B2 (en) | Double flow-circuit heat exchange device for periodic positive and reverse directional pumping using a bidirectional pump | |
US20100101764A1 (en) | Double flow-circuit heat exchange device for periodic positive and reverse directional pumping | |
US20100018683A1 (en) | Double flow-circuit heat exchange device for periodic positive and reverse directional pumping | |
US8651171B2 (en) | Single flow circuit heat exchange device for periodic positive and reverse directional pumping | |
CN204943954U (en) | Low energy consumption refrigeration system | |
US20100018680A1 (en) | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping | |
US20100018681A1 (en) | Single flow circuit heat exchange device for periodic positive and reverse directional pumping | |
EP1795830A1 (en) | An energy picking-up system by using water of river, lake and sea as low-grade energy source | |
US20100122802A1 (en) | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping | |
EP2148164A2 (en) | Single flow circuit heat absorbing/release device for periodic positive and reverse directional pumping | |
CN101440976B (en) | Energy storage enthalpy increasing heat pump heat supply system | |
CN102062061A (en) | Cooling method of pure water circulation system for wind generation and cooling system implementing method | |
US20100147004A1 (en) | Heat pump or heat exchange device with periodic positive and reverse pumping | |
CN201898435U (en) | Cooling system of pure water circulating system for wind power generation | |
CA2673107C (en) | Double flow-circuit heat exchange device for periodic positive and reverse directional pumping | |
CN204240639U (en) | Heat pump type air conditioning system | |
CA2672897C (en) | Single flow circuit heat exchange device for periodic positive and reverse directional pumping | |
JP4478052B2 (en) | Hot water heater | |
CN201476146U (en) | Energy storage air entrainment two-by enthalpy heat pump device | |
SE1650658A1 (en) | Device for rapid defrosting without compressor stop of the evaporator in an air-water heat pump and for running the heat pump at extremely low evaporator temperatures and at extremely low loads | |
JP5059090B2 (en) | Hot water heater | |
CN204240638U (en) | Heat pump type air conditioning system | |
CN2819111Y (en) | Multiple throttling hot-pumping water heater set | |
US20150121946A1 (en) | Capacity-Increasing Device For Four-Way Valve In Air Conditioning System And The Air Conditioning System |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |