CN105202811A - Capillary network critical heat battery - Google Patents
Capillary network critical heat battery Download PDFInfo
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- CN105202811A CN105202811A CN201510726886.2A CN201510726886A CN105202811A CN 105202811 A CN105202811 A CN 105202811A CN 201510726886 A CN201510726886 A CN 201510726886A CN 105202811 A CN105202811 A CN 105202811A
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- capillary network
- heat
- cold
- storage
- storage tank
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B19/00—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour
- F25B19/02—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour using fluid jet, e.g. of steam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a capillary network critical heat battery. The capillary network critical heat battery is used for heat storage and cold storage, and comprises a compressor, a heat storage tank, an ejector, a gas-liquid separation device, a cold storage tank, a heat storage capillary network and a cold storage capillary network, wherein the compressor, the heat storage tank, the ejector, the gas-liquid separation device and the compressor are sequentially connected with one another to form circulation, one end of the cold storage tank is connected with the ejector, the other end is connected with the gas-liquid separation device, and the heat storage capillary network and the cold storage capillary network are respectively distributed in the heat storage tank and the cold storage tank. Compared with the prior art, through a capillary network structure provided by the invention, an originally separated cooling/condenser and the heat storage tank are integrated, an originally separated evaporator and the cold storage tank are integrated, and the cooling/condenser and the evaporator adopt the capillary network structure, so that the advantages of compact structure, less energy loss and high energy storage efficiency are realized.
Description
Technical field
The present invention relates to a kind of thermal cell, especially relate to a kind of capillary network heat of transformation battery.
Background technology
Thermal cell, the needs that the energy storage by the dual mode operated cooling and warming of heat pump gets up with satisfied building and industrial batch hot-water air-conditioning, are proposed in 2012 jointly by the scientist of Aalborg university of Denmark, California, USA university and Purdue Univ-West Lafayette USA.Heat Pump battery can improve the occupancy of the intermittent renewable energy in energy resource system, contribute to solving energy shortage, atmosphere pollution and global warming day more serious world problem.
The Heat Pump battery developed in the world at present, but the heat pump of this Heat Pump battery and energy storage device are separated, volume is large, and in thermal energy storage process, along with energy storage canister inner fluid temperature change with time, system effectiveness COP declines rapidly.Such as application number be 201510028057.7 Chinese patent disclose a kind of jet type heat pump thermal cell, comprise compressor, condensation heat storage units, injector, gas-liquid separator, the evaporation cold unit of storage and control unit, described condensation heat storage units comprises condenser, heat storage can and heat storage can water circulating pump, heat storage can output is connected with condenser by heat storage can water circulating pump, the cold unit of evaporation storage comprises evaporimeter, cold storage tank and cold storage tank water circulating pump, cold storage tank output is connected with evaporimeter by cold storage tank water circulating pump, this thermal cell adjustable spraying apparatus substitutes conventional throttle valve, adopt frequency-changeable compressor, pass through to regulate injector according to energy storage canister inner fluid temperature transient change in thermal energy storage process, compressor frequency and circulating pump flow velocity real-time optimal control Heat Pump battery system.But the energy storage canister of this thermal cell and water pump, evaporator/condensers are separated, thermal cell volume is large, heat accumulation efficiency still needs to improve.
In addition, existing thermal cell adopts sensible heat energy storage usually, namely by heating ceramic honeycomb ceramics, medium that the thermal capacitance such as siliceous is large, its temperature is raised and storage power and sensible heat formula energy storage material energy storage density is little, heat accumulation and heat release can not constant temperature, there is inefficient deficiency equally.
Summary of the invention
Object of the present invention is exactly to overcome the defect and the capillary network heat of transformation battery that provides a kind of compact conformation, energy storage and energy release efficiency high that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
A kind of capillary network heat of transformation battery, for heat accumulation and Chu Leng, it is characterized in that, comprise compressor, heat storage can, injector, gas-liquid separator, cold storage tank, heat accumulation capillary network and Chu Leng capillary network, described compressor, heat storage can, injector, gas-liquid separator, compressor is in turn connected to form circulation, described cold storage tank one end is connected with injector, the other end is connected with gas-liquid separator, described heat accumulation capillary network is distributed in heat storage can inside and is connected respectively with compressor and injector, the cold capillary network of described storage is distributed in cold storage tank inside and is connected respectively with gas-liquid separator and injector.
Described injector comprises ejection cavity, by ejection cavity, hybrid chamber and diffusion chamber, described ejection cavity is connected with heat storage can and hybrid chamber respectively, described is connected with cold storage tank and hybrid chamber respectively by ejection cavity, described hybrid chamber is connected with diffusion chamber, and described diffusion chamber is connected with gas-liquid separator.
This capillary network heat of transformation battery also comprises the strong heat release capillary network of heat conductivility and releases cold capillary network, described heat release capillary network is distributed in heat storage can inside, and interlock with heat accumulation capillary network, described cold capillary network of releasing is distributed in cold storage tank inside, and interlock with the cold capillary network of storage, this structure makes energy storage and releases be able to carry out simultaneously, and mutual wild phase change energy-storage material thermal conductivity.Described heat release capillary network and release cold capillary network and be equipped with the import and outlet that are in communication with the outside.
Described heat storage can is cooling/condensing phase-change heat storage can, adopt passive type cooling/condensation technology, namely in thermal energy storage process, heat accumulation capillary network inlet temperature is non-constant, keep the phase transition temperature of phase-change material lower than phase-change material temperature, and phase-change material temperature is lower than heat accumulation capillary network entrance minimum temperature, thus realize passive cooling/condensation process.
Described cold storage tank is vaporation-type phase-change heat storage can, adopt passive type evaporation technique, namely cold capillary network inlet temperature is stored up in thermal energy storage process non-constant, keep the phase transition temperature of phase-change material higher than phase-change material temperature, and phase-change material temperature is higher than the cold capillary network entrance maximum temperature of storage, thus realize passive evaporation process.
Described injector is adjustable spraying apparatus, in thermal energy storage process, its ejection cavity and can being regulated in real time according to the instantaneous performance of thermal cell by the throat opening area size of ejection cavity, thus regulate injection and by the pressure of injection working medium and flow, thus realize total energy storage efficiency and maximize.
Described compressor is twin-stage frequency-changeable compressor.
Thermal energy storage process: flow through the heat accumulation capillary network heat storage can from compressor HTHP working medium out, heat transmission is stored in phase-change material, the working medium of high pressure cooling flows out from heat storage can, enter the ejection cavity of injector, by the low pressure working fluid injection that flows out from cold storage tank to injector by ejection cavity, after two fluids enters the interior fully mixing of hybrid chamber of injector jointly, flow into diffusion chamber, flow into gas-liquid separator again, the gas carried out after gas-liquid separation enters compressor, and liquid enters cold storage tank and flow through the evaporation of storage cold capillary network, cooling phase change materials also stores cold.
Exoergic process: release and working medium can flow through heat release capillary network, carry out energy exchange with heat storage can phase-change material, heat is sent to heat user; Release and working medium can flow through and release cold capillary network, carry out energy exchange with cold storage tank phase-change material, cold is sent to colod-application family.
Compared with prior art, the present invention has the following advantages:
(1) in thermal cell, former separative cooling/condenser and heat storage can are integrated, former separative evaporimeter and cold storage tank are integrated, and make conventional heat exchange pipeline into heat conductivility strong capillary network, capillary network has that heat exchange area is large, heat exchange efficiency is high, compact conformation and the advantage such as flow resistance is little, make thermal cell compact conformation, reduce energy loss, improve energy storage efficiency.
(2) heat release capillary network and heat accumulation capillary network interlock, release cold capillary network to interlock with the cold capillary network of storage, this structure makes energy storage and releases be able to carry out simultaneously, mutual wild phase change energy-storage material thermal conductivity, heat storage can and cold storage tank are imported and exported the heat transport fluid temperature difference and are realized maximizing, thus accelerate energy storage speed, while the cost that saves time, improve heat exchange efficiency.
(3) heat storage can and cold storage tank adopt phase-change material as energy storage material, and an energy storage density order of magnitude at least higher than sensible heat material, can absorb under constant temperature or discharge a large amount of heat energy, good stability, efficiency be high.
(4) adjustable spraying apparatus is adopted to substitute choke valve, can real-time optimization thermal storage performance, flexible modulation stores up cold quantity of heat storage ratio.
(5) frequency-changeable compressor can according to energy storage canister performance change real-time optimization circulatory system efficiency and energy storage efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Reference numeral: 1 is compressor, 2 is heat storage can, and 3 is injector, and 4 is gas-liquid separator, and 5 is cold storage tank, 6 is heat accumulation capillary network, and 7 is heat release capillary network, and 8 is ejection cavity, and 9 is by ejection cavity, 10 is hybrid chamber, and 11 is diffusion chamber, and 12 is the cold capillary network of storage, and 13 for releasing cold capillary network.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is implemented premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
A kind of capillary network heat of transformation battery, for heat accumulation and Chu Leng, comprise compressor 1, heat storage can 2, injector 3, gas-liquid separator 4, cold storage tank 5, heat accumulation capillary network 6 and Chu Leng capillary network 12, described compressor 1, heat storage can 2, injector 3, gas-liquid separator 4, compressor 1 is in turn connected to form circulation, described cold storage tank 5 one end is connected with injector 3, the other end is connected with gas-liquid separator 4, described heat accumulation capillary network 6 is distributed in heat storage can 2 inside and is connected respectively with compressor 1 and injector 3, the cold capillary network 12 of described storage is distributed in cold storage tank 5 inside and is connected respectively with gas-liquid separator 4 and injector 3.
Described injector 3 comprises ejection cavity 8, by ejection cavity 9, hybrid chamber 10 and diffusion chamber 11, described ejection cavity 8 is connected with heat storage can 2 and hybrid chamber 10 respectively, described is connected with cold storage tank 5 and hybrid chamber 10 respectively by ejection cavity 9, described hybrid chamber 10 is connected with diffusion chamber 11, and described diffusion chamber 11 is connected with gas-liquid separator 4.
This capillary network heat of transformation battery also comprises heat release capillary network 7 and releases cold capillary network 13, it is inner that described heat release capillary network 7 is distributed in heat storage can 2, and interlock with heat accumulation capillary network 6, described cold capillary network 13 of releasing is distributed in cold storage tank 5 inside, and interlocks with the cold capillary network 12 of storage.Described heat release capillary network 7 and release cold capillary network 13 and be equipped with the import and outlet that are in communication with the outside.
Described heat storage can 2 is cooling/condensing phase-change heat storage can, adopt passive type cooling/condensation technology, namely in thermal energy storage process, heat accumulation capillary network 6 inlet temperature is non-constant, keep the phase transition temperature of phase-change material lower than phase-change material temperature, and phase-change material temperature is lower than heat accumulation capillary network 6 entrance minimum temperature, thus phase-change material absorbs the heat in heat accumulation capillary network 6, realizes passive cooling/condensation process; Described cold storage tank 5 is vaporation-type phase-change heat storage can, adopt passive type evaporation technique, namely cold capillary network 12 inlet temperature is stored up in thermal energy storage process non-constant, keep the phase transition temperature of phase-change material higher than phase-change material temperature, and phase-change material temperature is higher than the cold capillary network 12 entrance maximum temperature of storage, thus the heat in guarantee phase-change material is delivered in the cold capillary network 12 of storage, realizes passive evaporation process.Adopt phase-change material as energy storage material, an energy storage density order of magnitude at least higher than sensible heat material, can absorb under constant temperature or discharge a large amount of heat energy, good stability, efficiency be high.
Described injector 3 is adjustable spraying apparatus, its ejection cavity 8 and can being regulated by the throat opening area size of ejection cavity 9, thus regulate injection and by the pressure of injection working medium and flow, thus realize real-time optimization energy storage circulatory system efficiency, flexible modulation stores up cold quantity of heat storage ratio.
Described compressor 1 is twin-stage frequency-changeable compressor, can according to energy storage canister performance change real-time optimization circulatory system efficiency and energy storage efficiency.
Thermal energy storage process: flow through the heat accumulation capillary network 6 heat storage can 2 from compressor 1 HTHP working medium out, heat transmission is stored in phase-change material, the working medium of high pressure cooling flows out from heat storage can 2, enter the ejection cavity 8 of injector 3, by the low pressure working fluid injection that flows out from cold storage tank 5 to injector 3 by ejection cavity 9, after two fluids enters the interior fully mixing of hybrid chamber 10 of injector 3 jointly, flow into diffusion chamber 11, flow into gas-liquid separator 4 again, the gas carried out after gas-liquid separation enters compressor 1, and liquid enters cold storage tank 5 and flow through storage cold capillary network 12 evaporative cooling phase-change material, store cold.
Exoergic process: release and working medium can flow through heat release capillary network 7, carry out energy exchange with the phase-change material of heat storage can 2, heat is sent to heat user; Release and working medium can flow through and release cold capillary network 13, carry out energy exchange with the phase-change material of cold storage tank 5, cold is sent to colod-application family.
Thermal cell of the present invention, by capillary network and phase-change accumulation energy tank are integrated, former separative cooling/condenser and heat storage can is realized to integrate, former separative evaporimeter and cold storage tank are integrated, make thermal cell compact conformation, reduce energy loss, improve energy storage efficiency.In thermal energy storage process, energy is discharged in phase-change accumulation energy tank by capillary heat exchange net by cold and hot energy quickly and efficiently, increases phase-change accumulation energy tank and imports and exports the temperature difference, thus realizes the maximization of total energy storage efficiency.Bionical capillary network phase-change accumulation energy tank is adopted to substitute traditional sensible heat or hidden heat energy storage tank, capillary network is the blood circulation system using bionics to imitate human body, according to the microcirculation that the network structure of the capillary of human body is formed, cycle fluid in superfine flow in capillary tube, realizes with phase-change material high-frequency heat exchange in the mode of cold and hot convection current, conduction and radiation by condensate correcting-distribuing device.Have that heat exchange area is large, heat exchange efficiency is high, compact conformation and the advantage such as flow resistance is little.
Heat release capillary network 7 interlocks with heat accumulation capillary network 6, release cold capillary network 13 to interlock with the cold capillary network 12 of storage, this structure makes energy storage and exoergic process to carry out simultaneously, as shown in the figure, the flow direction staggered adverse current substantially of heat release capillary network 7 and heat accumulation capillary network 6 tube fluid, release cold capillary network 13 and the flow direction staggered adverse current substantially of storing up cold capillary network 12, capillary network and the capillary network mutual wild phase change energy-storage material thermal conductivity released energy of storage power, thus accelerate energy storage speed, save time cost.
Claims (7)
1. a capillary network heat of transformation battery, for heat accumulation and Chu Leng, it is characterized in that, comprise compressor (1), heat storage can (2), injector (3), gas-liquid separator (4), cold storage tank (5), heat accumulation capillary network (6) and the cold capillary network of storage (12), described compressor (1), heat storage can (2), injector (3), gas-liquid separator (4), compressor (1) is in turn connected to form circulation, described cold storage tank (5) one end is connected with injector (3), the other end is connected with gas-liquid separator (4), described heat accumulation capillary network (6) is distributed in heat storage can (2) inside and is connected respectively with compressor (1) and injector (3), the cold capillary network of described storage (12) is distributed in cold storage tank (5) inside and is connected respectively with gas-liquid separator (4) and injector (3).
2. a kind of capillary network heat of transformation battery according to claim 1, it is characterized in that, described injector (3) comprises ejection cavity (8), by ejection cavity (9), hybrid chamber (10) and diffusion chamber (11), described ejection cavity (8) is connected with heat storage can (2) and hybrid chamber (10) respectively, described is connected with cold storage tank (5) and hybrid chamber (10) respectively by ejection cavity (9), described hybrid chamber (10) is connected with diffusion chamber (11), described diffusion chamber (11) is connected with gas-liquid separator (4).
3. a kind of capillary network heat of transformation battery according to claim 1, it is characterized in that, this capillary network heat of transformation battery also comprises heat release capillary network (7) and releases cold capillary network (13), it is inner that described heat release capillary network (7) is distributed in heat storage can (2), and interlock with heat accumulation capillary network (6), described cold capillary network (13) of releasing is distributed in cold storage tank (5) inside, and interlock with the cold capillary network of storage (12), described heat release capillary network (7) and release cold capillary network (13) and be equipped with the import and outlet that are in communication with the outside.
4. a kind of capillary network heat of transformation battery according to claim 1, is characterized in that, described heat storage can (2) is cooling/condensing phase-change heat storage can.
5. a kind of capillary network heat of transformation battery according to claim 1, is characterized in that, described cold storage tank (5) is vaporation-type phase-change heat storage can.
6. a kind of capillary network heat of transformation battery according to claim 1, it is characterized in that, described injector (3) is adjustable spraying apparatus, its ejection cavity (8) and can being regulated by the throat opening area size of ejection cavity (9), thus regulate injection and by the pressure of injection working medium and flow.
7. a kind of capillary network heat of transformation battery according to claim 1, is characterized in that, described compressor (1) is twin-stage frequency-changeable compressor.
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| CN201510726886.2A CN105202811A (en) | 2015-10-30 | 2015-10-30 | Capillary network critical heat battery |
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| CN201510726886.2A CN105202811A (en) | 2015-10-30 | 2015-10-30 | Capillary network critical heat battery |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201903221U (en) * | 2010-12-29 | 2011-07-20 | 陈安祥 | Solar energy, heat pump and capillary network composite hot water heating and refrigerating device |
| CN203323228U (en) * | 2013-05-08 | 2013-12-04 | 东南大学常州研究院 | Cold and heat integration double-layer capillary tube phase change energy storage floor tail end device and application system |
| CN103574988A (en) * | 2012-08-01 | 2014-02-12 | 吴春渊 | Cold and hot multi-functional economizer system |
| CN104676957A (en) * | 2015-01-20 | 2015-06-03 | 上海电力学院 | Injection-type heat-pump thermal battery |
| CN104746647A (en) * | 2015-02-04 | 2015-07-01 | 北京工业大学 | Active and passive combined annual phase-change energy storage room capable of being used all year around |
-
2015
- 2015-10-30 CN CN201510726886.2A patent/CN105202811A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201903221U (en) * | 2010-12-29 | 2011-07-20 | 陈安祥 | Solar energy, heat pump and capillary network composite hot water heating and refrigerating device |
| CN103574988A (en) * | 2012-08-01 | 2014-02-12 | 吴春渊 | Cold and hot multi-functional economizer system |
| CN203323228U (en) * | 2013-05-08 | 2013-12-04 | 东南大学常州研究院 | Cold and heat integration double-layer capillary tube phase change energy storage floor tail end device and application system |
| CN104676957A (en) * | 2015-01-20 | 2015-06-03 | 上海电力学院 | Injection-type heat-pump thermal battery |
| CN104746647A (en) * | 2015-02-04 | 2015-07-01 | 北京工业大学 | Active and passive combined annual phase-change energy storage room capable of being used all year around |
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Application publication date: 20151230 |
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