CN204757416U - Warm for air piping system phase transition heat accumulation body in solar energy - Google Patents
Warm for air piping system phase transition heat accumulation body in solar energy Download PDFInfo
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- CN204757416U CN204757416U CN201520445814.6U CN201520445814U CN204757416U CN 204757416 U CN204757416 U CN 204757416U CN 201520445814 U CN201520445814 U CN 201520445814U CN 204757416 U CN204757416 U CN 204757416U
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/50—Energy storage in industry with an added climate change mitigation effect
Abstract
The utility model provides a warm for air piping system phase transition heat accumulation body in solar energy is connected gradually by multiunit phase transition heat accumulation body unit and constitutes, phase transition heat accumulation body unit includes that corrosion resistant plate, parallel equidistance connect the several nonrust steel pipe on corrosion resistant plate, and inorganic phase change material or the organic phase change material who has the mass ratio to be 2-4% graphite is added in the intraductal packing of stainless steel. For traditional solid heat -retaining unit, heat -retaining density is big, and coefficient of heat conductivity is high, and heat transfer speed is even, and calorifics and mechanical properties are stable, and easy to maintain need not special processing when inactive, and with low costs, and long service life is fit for on a large scale utilizing.
Description
Technical field
The utility model relates to warm air system PCM storage unit in a kind of solar energy, belongs to field of mechanical technique.
Background technology
Solar energy is a kind of clean energy resource, Application of Solar Energy is divided into low temperature (40 ~ 100 DEG C), middle temperature (100 ~ 250 DEG C) and high temperature (>250 DEG C) by temperature range, with regard to China's solar energy optical-thermal application, solar energy high temperature utilizes technology relative maturity, and the large-scale application of middle low temperature is relatively less.
At present, a lot of industry, agriculture thermal demand are between 60 ~ 220 DEG C, required form of energy mostly is air heat energy, comprise building materials industry block curing, building materials raw material preheat, the field such as agricultural product and medicinal material oven dry, main employing be traditional energy heating means, in solar energy, warm air utilizes the application potential of technology in these fields very huge.But these heating process requires supplying heat source stable, continuously, and solar energy by geographical, round the clock with the restriction of the enchancement factor such as the impact of regular changing factor and rain or shine sexual intercourse such as season, present unstability and discontinuity.In order to ensure the stability of solar energy in industrial utilization, just needing to utilize heat-storing device storage of solar energy, discharging again when solar energy is not enough, to meet continuously, to stablize the needs of supply heat energy.
In existing solar energy, warm thermal-arrest-heat reservoir utilizes liquid medium if heat conduction wet goods is as heat catalysis and heat accumulating mostly, first utilizes solar energy heating liquid medium, warm steam in needed for recycling liquid medium heating water produces.There is secondary heat exchange in this process, considerably increases heat loss, and efficiency is lower; Simultaneously heat conduction wet goods exists that thermal capacitance is little, unstable, high in cost of production shortcomings, therefore air is utilized to be good selection as heat catalysis, but the specific heat of air is little, variations in temperature is violent, direct application cannot meet stability, the continuity demand of commercial Application, therefore needs to design the heat reservoir be suitable for.
The research in current solar air heat accumulation field mainly concentrates on high temperature and utilizes field, lacks the research that centering temperature utilizes field.Such as patent CN101226035A reports a kind of gas that utilizes as the solar heat-storing device of heat transfer medium, and device adopts phase-transition heat-storage alloy to realize high temperature solar and utilizes, and stores-exothermic process reusable edible more than thousand times.
Patent CN102818468A reports a kind of solid heat storage device, adopt refractory brick, rock, pottery, glass, graphite, coal, amorphous graphite, metal, ore, slag, concrete etc. wherein a kind of the or mixture of at least two kinds as solid heat-storage medium.
Patent CN102374812A reports a kind of solar energy high-temperature phase-change heat-storing device, adopts graphite/inorganic salt high-temperature phase change composite material as heat accumulation working medium, achieves Appropriate application energy and heat reservoir, can export working medium by constant temperature.
Utility model content
The utility model provides warm air system PCM storage unit in a kind of solar energy, and structure is simple, good heat-transfer, quantity of heat storage are large, long service life.
For solving above technical problem, the utility model provides following technical scheme: connect to form successively by organizing phase-change thermal storage body unit more, described phase-change thermal storage body unit comprises corrosion resistant plate, parallel equidistant is connected to several stainless steel tubes on corrosion resistant plate, fills the inorganic phase-changing material or the organic phase change material that are added with 2 ~ 4% graphite in stainless steel tube.
Further, a side lower part of described PCM storage unit is provided with thermal store air intake vent, and its opposite side top is provided with thermal store air outlet, and often organize phase-change thermal storage body unit and equidistantly connect, phase-change thermal storage is external to be surrounded by thermal store heat-insulation layer.
Further, the outer tube diameter of described stainless steel tube is 1 ~ 2cm, and interior caliber is 0.5 ~ 1cm.Often the spacing of adjacent two stainless steel tubes is more than or equal to 0.5cm, is less than or equal to 2cm.
The utility model compared with prior art has the following advantages:
1, due to the cylindric stainless steel tube that heat storage units in the utility model is internal diameter 1 ~ 2cm, designed by computational analysis, the arrangement of steel pipe is best hydrodynamics and thermodynamical model; Fill inorganic phase-changing material or organic phase change material in steel pipe simultaneously, and evenly with the addition of the material of micro-high thermal conductivity, therefore, relative to traditional solid heat storage units, storage density is large, and thermal conductivity factor is high, and heat exchange rate is even, calorifics and stable mechanical property, be easy to safeguard, without the need to special disposal when inactive, and cost is low, long service life, is applicable to large-scale application.
2, a side lower part of the utility model PCM storage unit is provided with thermal store air intake vent, its opposite side top is provided with thermal store air outlet, connect PCM storage unit and solar energy air heat collector by heat accumulation hot air duct, heat supply hot air duct and use hot terminal, the heat exchange of PCM storage unit inside is by the heat transfer heat exchange between hot fluid and tubulose heat storage units, for reaching complete heat exchange balance, PCM storage unit is to be parallel to direction of heat flow length longer.
3, the utility model structure is simple, PCM storage unit combines with solar energy air heat collector, utilize the charge and discharge thermal characteristics of PCM storage unit, the store heat when solar energy abundance, when solar energy is not enough or night release heat, realize continuous, the stable heating of temperature in commercial Application in solar energy, meet the thermal demand at daytime and night, significantly can reduce the coal-fired consumption in industrial production heat supplying process, the environmental pollution that the coal-fired consumption of minimizing brings, carbon emission and PM
2.5deng the discharge of pollutant.
Accompanying drawing explanation
Fig. 1 is warm air system architecture schematic diagram in the utility model solar energy;
The front view of PCM storage unit in Fig. 2 the utility model;
The top view of PCM storage unit in Fig. 3 the utility model;
The left view of PCM storage unit in Fig. 4 the utility model.
In figure: 1-thermal-arrest blower fan; 2-solar energy air heat collector; 3-thermal-collecting tube transportation work style valve; 4-wind check-valve; 5-heat accumulation blower fan; 6-PCM storage unit; 7-heat accumulation outlet valve; 8-heat storage tube transportation work style valve; 9-heat supplying pipeline air-valve; 10-use hot terminal; 11-thermal-arrest hot air duct; 12-heat accumulation hot air duct; 13-heat supply hot air duct I; 14-heat storage units; 15-thermal store heat-insulation layer; 16-thermal store air intake vent; 17-thermal store air outlet; 18-heat supply hot air duct II; 19-hot fluid temperature meter I; 20-hot fluid temperature meter II; 21-hot fluid temperature meter III; 22-hot fluid temperature meter IV; 23-hot fluid temperature meter V; 24-hot fluid temperature meter VI.
Detailed description of the invention
As shown in Figure 1, in solar energy warm air system comprise be cascaded by thermal-arrest hot air duct 11 array solar energy air heat collector 2, PCM storage unit 6, by hot terminal 10.
One end of array solar energy air heat collector 2 is connected with thermal-arrest blower fan 1 by thermal-arrest hot air duct 11, and its other end is connected with heat accumulation hot air duct 12, heat supply hot air duct I13 respectively by thermal-arrest hot air duct 11; One end of heat accumulation hot air duct 12 is connected with heat accumulation blower fan 5, PCM storage unit 6 respectively, and its other end is connected with heat supply hot air duct I13; The other end of PCM storage unit 6 is provided with the heat accumulation discharge pipe of band heat accumulation outlet valve 7, and this heat accumulation discharge pipe is connected with heat supply hot air duct II18; Heat supply hot air duct I13 and heat supply hot air duct II18 all with by hot terminal 10 are connected; One side lower part of PCM storage unit 6 is provided with thermal store air intake vent 16, and its opposite side top is provided with thermal store air outlet 17, and it is inner is equidistantly provided with several heat storage units 14, its peripheral hardware thermal store heat-insulation layer 15.
As Fig. 2-Fig. 4 phase-change thermal storage body unit comprise corrosion resistant plate, parallel equidistant is connected to several stainless steel tubes on corrosion resistant plate, fills the inorganic phase-changing material or the organic phase change material that are added with 2 ~ 4% graphite in stainless steel tube.
One side lower part of described PCM storage unit is provided with thermal store air intake vent 16, and its opposite side top is provided with thermal store air outlet 17, often organizes phase-change thermal storage body unit and equidistantly connects, and PCM storage unit 6 is outer to be surrounded by thermal store heat-insulation layer.
Heat storage units 14 is stainless steel tube, and the external diameter of stainless steel tube is 1 ~ 2cm, and interior caliber is 0.5 ~ 1cm; Often the spacing of adjacent two stainless steel tubes is more than or equal to 0.5cm, is less than or equal to 2cm.
The inorganic phase-changing material adding 2-4% graphite or organic phase change material is filled in this pipe.Designed by computational analysis, the arrangement of pipe is best hydrodynamics and thermodynamical model; Fill inorganic phase-changing material or organic phase change material in pipe simultaneously, and evenly with the addition of the material-graphite of micro-high thermal conductivity, the content of graphite can be 2%, 3% or 4%, make existing PCM storage unit storage density large after interpolation, thermal conductivity factor is high, and heat exchange rate is even, and intensive arrangement is beneficial to heat accumulation, take into account heat transfer and insulation two aspects, to reach the two maximum equilibrium point.This PCM storage unit calorifics and stable mechanical property, be easy to safeguard, without the need to special disposal when inactive, and cost is low, long service life, is applicable to utilizing on a large scale.The latent heat of fusion is high, makes it can preserve in phase transformation or release more heat; Phase transition process good reversibility, expansibility and contractibility are little, mistake is cold or superheating phenomenon is few; Thermal conductivity factor is large, and density is large, and specific heat capacity is large; Phase-change material is nontoxic, non-corrosiveness, and cost is low, easily manufactured.
Wherein: the thermal-arrest hot air duct 11 that thermal-arrest blower fan 1 is connected with array solar energy air heat collector 2 is provided with hot fluid temperature meter I19.
The thermal-arrest hot air duct 11 that array solar energy air heat collector 2 is connected with heat accumulation hot air duct 12 is provided with hot fluid temperature meter II20.
Heat accumulation hot air duct 12 is provided with thermal-collecting tube transportation work style valve 3, and is provided with wind check-valve 4 near heat accumulation blower fan 5 place.
PCM storage unit 6 is provided with hot fluid temperature meter III21.
Heat supply hot air duct I13 is respectively equipped with heat supplying pipeline air-valve 9, hot fluid temperature meter IV22.
Hot fluid temperature meter V23 is provided with by hot terminal 10.
Heat supply hot air duct II18 is respectively equipped with hot fluid temperature meter VI24, heat storage tube transportation work style valve 8, this heat storage tube transportation work style valve 8 is near described heat accumulation discharge pipe.
Utility model works process is divided into fills hot heat supply stage and heat release heat supply stage:
Fill heat and heat supply stage: on daytime, open thermal-arrest blower fan 1 and heat supplying pipeline air-valve 9, solar energy air heat collector 2 absorbs solar energy, heats the cold air fluid passed into by thermal-arrest blower fan 1.The hot-air fluid produced is entered by hot terminal 10 by thermal-arrest hot air duct 11 and heat supply hot air duct I13.When hot fluid temperature is higher than 80 DEG C, open thermal-collecting tube transportation work style valve 3, hot fluid enters PCM storage unit 6 by heat accumulation hot air duct 12, carries out heat exchange with phase-change heat-storage material, fills heat to PCM storage unit 6.When the temperature that the hot fluid temperature meter VI24 of thermal store air outlet 17 records is higher than time temperature required by hot terminal 10, heat accumulation outlet valve 7 is closed, and heat storage tube transportation work style valve 8 is opened, and middle warm air fluid enters by hot terminal 10 by heat supply hot air duct II18; When the temperature that the hot fluid temperature meter VI24 of thermal store air outlet 17 records is lower than time temperature required by hot terminal 10, heat storage tube transportation work style valve 8 cuts out, and heat accumulation outlet valve 7 is opened.
Heat release and heat supply stage: night, closure set air-heater 1 and thermal-collecting tube transportation work style valve 3, open heat accumulation blower fan 5, cold air fluid sent into PCM storage unit 6, carries out heat exchange with phase-change heat-storage material.Close heat accumulation outlet valve 7, open heat storage tube transportation work style valve 8, the hot-air fluid after heating enters by hot terminal 10 by heat supply hot air duct II18, realizes continuing heat supply at night.
embodiment 1
The utility model is used for building block maintaining production process.System composition is identical with above-mentioned embodiment, and collecting system is made up of 16 groups of solar energy air heat collectors 2, in parallel again after every two groups of series connection, forms one-way circulation system.Heat accumulating uses organic phase change material to add the graphite of 3%.Be block curing room by hot terminal 10.
Utilizing daytime in solar energy air heat collector 2 and heat heat transfer medium---air, by heat accumulation hot air duct 11, heat supply hot air duct I13, heat supply hot air duct II18, makes to be entered in PCM storage unit 6 by the heat transfer medium heated to carry out filling heat.High-temperature hot air enters into PCM storage unit 6 and carries out heat transfer with phase-change heat accumulation unit 14, heat is passed to PCM storage unit 6.From PCM storage unit 6 out in warm air, enter into block curing room, maintenance carried out to building block.
Night, heat transfer medium is made by heat accumulation blower fan 5---air enters in PCM storage unit 6, heat exchange is carried out with the heat storage units 14 in PCM storage unit 6, by the phase transformation exothermic process of heat accumulating, extract the heat in heat storage units 14, make the heat transfer medium flowed out from PCM storage unit 6 reach uniform temperature, become middle warm air.Middle warm air is entered with in hot terminal 10 heat exchanger by heat supply hot air duct I13, heat supply hot air duct II18 again, carries out heat exchange, continues the heat energy provided needed for block curing, thus meet the heat demand at night with the low temperature environment of block curing room.By the charge and discharge heat of PCM storage unit 6, the heat that can realize utilizing solar energy to provide is to meet the thermal demand on daytime and night.
Detailed description of the invention described in the utility model does not form the restriction to the application's scope; within every spirit in the utility model design and principle, any amendment that one of skill in the art can make, equivalent to replace and improvement etc. all should be included within protection domain of the present utility model.
Claims (4)
1. warm air system PCM storage unit in a solar energy, connect to form successively by organizing phase-change thermal storage body unit more, it is characterized in that, described phase-change thermal storage body unit comprises corrosion resistant plate, parallel equidistant is connected to several stainless steel tubes on corrosion resistant plate, fills the inorganic phase-changing material or the organic phase change material that are added with 2 ~ 4% graphite in stainless steel tube.
2. warm air system PCM storage unit in a kind of solar energy according to claim 1, it is characterized in that, one side lower part of described PCM storage unit is provided with thermal store air intake vent, its opposite side top is provided with thermal store air outlet, often organize phase-change thermal storage body unit equidistantly to connect, phase-change thermal storage is external to be surrounded by thermal store heat-insulation layer.
3. warm air system PCM storage unit in a kind of solar energy according to claim 1 and 2, is characterized in that, the external diameter of described stainless steel tube is 1 ~ 2cm, and interior caliber is 0.5 ~ 1cm.
4. warm air system PCM storage unit in a kind of solar energy according to claim 3, is characterized in that, often the spacing of adjacent two stainless steel tubes is more than or equal to 0.5cm, is less than or equal to 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445814.6U CN204757416U (en) | 2015-06-26 | 2015-06-26 | Warm for air piping system phase transition heat accumulation body in solar energy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520445814.6U CN204757416U (en) | 2015-06-26 | 2015-06-26 | Warm for air piping system phase transition heat accumulation body in solar energy |
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| CN204757416U true CN204757416U (en) | 2015-11-11 |
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| CN201520445814.6U Active CN204757416U (en) | 2015-06-26 | 2015-06-26 | Warm for air piping system phase transition heat accumulation body in solar energy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180652A (en) * | 2017-12-28 | 2018-06-19 | 河南百年融熥实业有限公司 | A kind of solar energy multimedium heat-collection and heat-accumulation device |
| CN108204682A (en) * | 2017-12-28 | 2018-06-26 | 河南百年融熥实业有限公司 | A kind of solar air water heat collector |
-
2015
- 2015-06-26 CN CN201520445814.6U patent/CN204757416U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180652A (en) * | 2017-12-28 | 2018-06-19 | 河南百年融熥实业有限公司 | A kind of solar energy multimedium heat-collection and heat-accumulation device |
| CN108204682A (en) * | 2017-12-28 | 2018-06-26 | 河南百年融熥实业有限公司 | A kind of solar air water heat collector |
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| GR01 | Patent grant |