CN109945531A - High temperature air gradient hole phase-change heat accumulation unit - Google Patents
High temperature air gradient hole phase-change heat accumulation unit Download PDFInfo
- Publication number
- CN109945531A CN109945531A CN201910154009.0A CN201910154009A CN109945531A CN 109945531 A CN109945531 A CN 109945531A CN 201910154009 A CN201910154009 A CN 201910154009A CN 109945531 A CN109945531 A CN 109945531A
- Authority
- CN
- China
- Prior art keywords
- heat
- phase
- connecting pipe
- storage units
- high temperature
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a kind of high temperature air gradient hole phase-change heat accumulation units, it is connect with solar energy air heat collector and receives hot-air as input, heat storage units are internally provided with the connecting pipe of tree, the pipe diameter of the connecting pipe is presented gradient to outlet end from heat storage units arrival end and successively decreases, filling is packaged with the phase-change material for heat accumulation inside connecting pipe, is filled with heat transfer medium inside heat storage units.Heat storage units of the present invention form the heat exchange structure of optimization, solve the problems, such as that phase change material releases heat performance is poor using the form of the 3 bionical pore structures of dimension heat exchange.The present invention is by being placed into phase-change material in the connecting pipe in different-diameter gradient pore size distribution, and the phase-change material of different transformation temperatures is placed in outlet from heat storage units import to heat storage units, optimal response is realized for end and source end temperature, so that system reaches optimal heat release parameter.
Description
Technical field
The present invention relates to air heat-storage technology fields, and in particular to a kind of high temperature air gradient hole phase-change heat accumulation unit,
It can be used for heat accumulation, the heat accumulation of industrial exhaust heat exhaust gas etc. of solar energy high temperature thermal-arrest.
Background technique
Air heat accumulation is the demand in current industrial or agricultural solar energy drying field.Heat accumulation can export stable temperature, flow
And pressure.Atmospheric density is low, therefore exchange capability of heat is poor under same flow velocity, increases flow velocity and is faced with pressure loss increase, therefore
Air heat exchanger needs biggish heat exchange area.
A kind of multistage heat-storing device disclosed in the prior art, at least two thermal storage devices are borrowed between the adjacent thermal storage device
The defeated passage of heat is helped to connect, but the technical solution does not account for and different apertures is arranged in thermal store and places phase-change heat-storage material
To adapt to optimal heat transfer effect, more without further considering the case where air and phase-change material exchange heat.
Summary of the invention
The purpose of the present invention is to solve drawbacks described above in the prior art, provide a kind of high temperature air gradient hole phase
Become heat storage units.
The purpose of the present invention can be reached by adopting the following technical scheme that:
A kind of high temperature air gradient hole phase-change heat accumulation unit connect with solar energy air heat collector and receives hot-air work
For input, the heat storage units are internally provided with the connecting pipe of tree, and the pipe diameter of the connecting pipe is by heat accumulation
Unit arrival end is presented gradient to outlet end and successively decreases, and filling is packaged with the phase transformation material for heat accumulation inside the connecting pipe
Material, the heat storage units inside are filled with heat transfer medium.
Further, filling gas or liquid is as a heat transfer medium inside the heat storage units.
Further, the heat storage units carry out filling heat and heat release by phase-change material.
Further, the phase-change material in the gradient pore of connecting pipe not directly and heat transfer medium contacts.
Further, the temperature range of the phase-change material is 40-500 DEG C.
Further, the phase-change material for inserting connecting pipe is directed to the heat transfer medium of different temperatures, by heat storage units entrance
Holding to outlet end has different transformation temperatures.
The present invention has the following advantages and effects with respect to the prior art:
1, heat storage units of the present invention form the heat exchange structure of optimization, solve using the form of the 3 bionical pore structures of dimension heat exchange
The problem of phase change material releases heat performance difference.
2, the present invention is by being placed into phase-change material in the connecting pipe in different-diameter gradient pore size distribution, and from storage
The phase-change material of different transformation temperatures is placed in hot cell import to heat storage units outlet, end and source end temperature is realized optimal
Response, so that system reaches optimal heat release parameter.
Detailed description of the invention
Fig. 1 is the structure flat cutting faces of high temperature air gradient hole phase-change heat accumulation unit heat storage units disclosed in the present invention；
Fig. 2 is the sectional elevation of high temperature air gradient hole phase-change heat accumulation unit heat storage units disclosed in the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment
Present embodiment discloses a kind of high temperature air gradient hole phase-change heat accumulation units, can be with solar air heat collection
Device connection, using gas or liquid as heat transfer medium, using phase-change material as heat-storage medium.The pipeline of hot-air and different-diameter changes
Heat is transmitted to the phase-change material around air, and then carries out heat storage using phase-change material by heat.Temperature according to phase-change material
The different available different air themperatures of degree, give terminal temperature difference.Phase-change material in heat storage units is placed in heat storage units
Connecting pipe in, pipeline configuration be similar tree, the connecting pipe 1,2,3 of specific different-diameter, air can even
It threads a pipe outer flowing, the phase-change material in connecting pipe is transferred heat to by heat convection, sufficiently after heat exchange, air is from storage
Hot cell outlet outflow.
Phase-change material is used for heat accumulation, is encapsulated in connecting pipe and exists, which carries out filling heat by phase-change material
And heat release, phase-change material in the gradient pore of connecting pipe not directly and heat transfer fluid contacts；
The temperature range of phase-change material in the gradient pore of connecting pipe is 40-500 DEG C.
The heat storage units form the heat exchange structure of optimization using the form of the 3 bionical pore structures of dimension heat exchange.Solves phase transformation
The problem of material exothermic performance difference.Template production can be used in the gradient pore of connecting pipe.
As shown in Figures 1 and 2, phase-change material of the filling for heat accumulation in connecting pipe 1,2,3.Heat transfer medium is from heat accumulation
Unit one end flows into, and flows out from other end, while exchanging heat with the phase-change material in connecting pipe 1,2,3.Connecting pipe 1,2,3
Pipe diameter it is different.Since heat storage units inlet air temperature and the phase-change material temperature difference in thermal store are larger, heat accumulation
Internal inlet is relatively large in diameter, and as air and phase-change material in thermal store constantly exchange heat, air themperature is reduced, exchange capability of heat
It reduces, therefore gradually reduces the connecting pipe diameter in heat storage units, reach reasonable heat exchange balance.
For the heat transfer medium of different temperatures, the phase-change material of different transformation temperatures can be inserted in connecting pipe 1,2,3.
These materials realize optimal response for end and source end temperature, so that system reaches optimal heat release parameter, including temperature,
Pressure, flow etc..
In conclusion present embodiment discloses a kind of high temperature air gradient heat storage units for filling phase-change material, and too
Positive energy air collector is connected in series, and using air as heat transfer medium, the phase-change material of the heat storage units is arranged in connecting pipe
Portion, air is outside connecting pipe.The connecting pipe that phase-change material is placed is in the gradient pore size distribution of different-diameter.From heat storage units
Import can place the phase-change material of different transformation temperatures to heat storage units outlet, to adapt to optimal heat transfer effect.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (6)
1. a kind of high temperature air gradient hole phase-change heat accumulation unit, connect with solar energy air heat collector and receives hot-air conduct
Input, which is characterized in that the heat storage units are internally provided with the connecting pipe of tree, and the pipeline of the connecting pipe is straight
Diameter is presented gradient to outlet end from heat storage units arrival end and successively decreases, and filling is packaged with for heat accumulation inside the connecting pipe
Phase-change material, the heat storage units inside are filled with heat transfer medium.
2. high temperature air gradient according to claim 1 hole phase-change heat accumulation unit, which is characterized in that the heat accumulation list
First internal filling gas or liquid are as a heat transfer medium.
3. high temperature air gradient according to claim 1 hole phase-change heat accumulation unit, which is characterized in that the heat accumulation list
Member carries out filling heat and heat release by phase-change material.
4. high temperature air gradient according to claim 1 hole phase-change heat accumulation unit, which is characterized in that the phase transformation material
Material in the gradient pore of connecting pipe not directly and heat transfer medium contacts.
5. high temperature air gradient according to claim 1 hole phase-change heat accumulation unit, which is characterized in that the phase transformation material
The temperature range of material is 40-500 DEG C.
6. high temperature air gradient according to claim 1 hole phase-change heat accumulation unit, which is characterized in that filling connecting pipe
Phase-change material be directed to different temperatures heat transfer medium, have different transformation temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910154009.0A CN109945531A (en) | 2019-03-01 | 2019-03-01 | High temperature air gradient hole phase-change heat accumulation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910154009.0A CN109945531A (en) | 2019-03-01 | 2019-03-01 | High temperature air gradient hole phase-change heat accumulation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109945531A true CN109945531A (en) | 2019-06-28 |
Family
ID=67007085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910154009.0A Pending CN109945531A (en) | 2019-03-01 | 2019-03-01 | High temperature air gradient hole phase-change heat accumulation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109945531A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201293585Y (en) * | 2008-08-26 | 2009-08-19 | 昆明理工大学 | Heat exchanging and energy storing device |
| CN202304525U (en) * | 2011-09-08 | 2012-07-04 | 金播 | Heat storage water tank |
| JP2012220101A (en) * | 2011-04-08 | 2012-11-12 | Toyota Central R&D Labs Inc | Reactor |
| CN103968695A (en) * | 2014-05-27 | 2014-08-06 | 哈尔滨工业大学 | Energy storing device with tree directional heat-conducting fin structures |
| CN104154788A (en) * | 2014-08-14 | 2014-11-19 | 东南大学 | Heat pipe type solid-liquid phase transition heat accumulator |
| CN105115341A (en) * | 2015-09-15 | 2015-12-02 | 东南大学 | Phase-change energy-storage heat exchanger |
| CN107014237A (en) * | 2017-02-23 | 2017-08-04 | 宁波瑞信能源科技有限公司 | A kind of mobile heat-storing device using microchannel enhanced direct contact heat transfer |
| CN108548442A (en) * | 2018-05-08 | 2018-09-18 | 扬州大学 | Compound cold piece of the storage of bionic metal-phase-change material |
-
2019
- 2019-03-01 CN CN201910154009.0A patent/CN109945531A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201293585Y (en) * | 2008-08-26 | 2009-08-19 | 昆明理工大学 | Heat exchanging and energy storing device |
| JP2012220101A (en) * | 2011-04-08 | 2012-11-12 | Toyota Central R&D Labs Inc | Reactor |
| CN202304525U (en) * | 2011-09-08 | 2012-07-04 | 金播 | Heat storage water tank |
| CN103968695A (en) * | 2014-05-27 | 2014-08-06 | 哈尔滨工业大学 | Energy storing device with tree directional heat-conducting fin structures |
| CN104154788A (en) * | 2014-08-14 | 2014-11-19 | 东南大学 | Heat pipe type solid-liquid phase transition heat accumulator |
| CN105115341A (en) * | 2015-09-15 | 2015-12-02 | 东南大学 | Phase-change energy-storage heat exchanger |
| CN107014237A (en) * | 2017-02-23 | 2017-08-04 | 宁波瑞信能源科技有限公司 | A kind of mobile heat-storing device using microchannel enhanced direct contact heat transfer |
| CN108548442A (en) * | 2018-05-08 | 2018-09-18 | 扬州大学 | Compound cold piece of the storage of bionic metal-phase-change material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101592455A (en) | Solar energy high-temperature phase-change heat reservoir | |
| CN105115340A (en) | Phase change heat storage device and heat-pump water heater | |
| CN107664450B (en) | A kind of electric heating coil heat pipe | |
| CN107664449A (en) | A kind of heat pipe of heat stepwise | |
| CN105202775A (en) | Accumulated-heat-insisted heating solar system capable of being monitored remotely and intelligently | |
| CN107664446A (en) | A kind of heat pipe of intelligent temperature control | |
| CN207472113U (en) | A kind of built-in single tank fused salt regenerative apparatus heated and exchange heat | |
| CN107664447A (en) | A kind of heat pipe of heater caliber change | |
| CN105157098B (en) | Utilize the solar heating device of phase-change material as a heat transfer medium | |
| CN205027186U (en) | Phase transition heat accumulation unit and heat pump water heater | |
| CN207501746U (en) | A kind of double-tube type heat exchanger | |
| CN211502977U (en) | Solar heating device | |
| CN109945531A (en) | High temperature air gradient hole phase-change heat accumulation unit | |
| CN107449307A (en) | A kind of multi-channel phase-change energy storage equipment with cross-ventilation heat exchange | |
| CN102538237B (en) | Solar heat exchanging system and heat collector thereof | |
| CN209371376U (en) | A kind of electric heating fused salt heating plant | |
| TWI507648B (en) | Geothermal heat exchanging system and geothermal generator system and geothermal heat pump system using the same | |
| CN209655860U (en) | A kind of double-tube heat exchanger | |
| CN107702188A (en) | A kind of heat-pipe apparatus for having heat storage capacity | |
| CN209263746U (en) | A kind of Combined type dehumidifying heat pipe | |
| CN109611607B (en) | Tee bend shunt and air conditioning system | |
| CN207330910U (en) | A kind of fermenting case of embedded heat exchanger | |
| CN107664448A (en) | A kind of heat pipe of heating power change | |
| CN208011831U (en) | A kind of heat-pipe apparatus having heat storage capacity | |
| CN207197329U (en) | A kind of multi-channel phase-change energy storage equipment with cross-ventilation heat exchange |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190628 |
|
| RJ01 | Rejection of invention patent application after publication |