CN105258363A - Pipeline inflection type solar heat collection device - Google Patents
Pipeline inflection type solar heat collection device Download PDFInfo
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- CN105258363A CN105258363A CN201510683313.6A CN201510683313A CN105258363A CN 105258363 A CN105258363 A CN 105258363A CN 201510683313 A CN201510683313 A CN 201510683313A CN 105258363 A CN105258363 A CN 105258363A
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- heat storage
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- solar energy
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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
- Y02E10/44—Heat exchange systems
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a pipeline inflection type solar heat collection device. The device comprises a shell (11). A heat accumulator (10) composed of a stacking structure is arranged inside the shell (11). At least one inflection type heat exchange pipeline (21) is arranged inside the heat accumulator (10). The two ends of the inflection type heat exchange pipeline (21) are communicated with an inlet pipeline (2) and an outlet pipeline (8) which penetrating out of the shell (11). The heat accumulator is used as a solar cavity absorber, a heat absorption pipeline is arranged compactly, the single-pipe heat exchange area is large, the problem that solar heat output is not stable is effectively solved, and parameters of output working media are improved; and the heat accumulator of the heat collection device is of the stacking structure, and the number of stacked layers can be flexibly designed according to the user need so as to adapt to the requirement of heat collection devices of different powers. Meanwhile, the pipeline inflection type solar heat collection device is simple in structure, remarkable in effect and suitable for usage and popularization.
Description
Technical field
The invention belongs to solar energy utilization technique field, particularly relate to a kind of back of pipeline fold-type solar energy heat collector.
Background technology
Solar energy is as the reproducible new forms of energy of one, there is clean, environmental protection, continue, permanent advantage, become one of the important selection that people tackle energy shortage, climate change and energy-saving and emission-reduction, more and more be subject to the strong interest of common people, also the important directions of China's current energy source development is become, but have the features such as energy density is low, unstability due to solar energy, the efficient stable of solar energy heat utilization system runs and still faces problems.In order to ensure stability and the security of solar energy heat utilization system, unnecessary solar heat stored by hold over system, accumulation of heat being discharged when not having sunshine or sunshine is not enough, is a kind of common settling mode again.
The hold over system of current this kind of solar energy is generally be separated with heat collector, between be connected with heat transfer circuit, cause the problem that resistance is large, thermal losses is serious.And the heat-accumulation heat-collection device compact conformation that solar heat-storing device and heat collector are combined, it is a kind of effective settling mode, but due to the restriction of size, adopt single straight tube heat exchange curtailment, heat exchange area is too small, heat the working medium quality obtained lower, metallic conduit is different from heat storage thermal coefficient of expansion also can cause larger stress, the safety and stability that impact runs.
Therefore, solar heat-collection and heat-accumulation integrated heat collector, at optimization pipeline structure, reduces thermal (temperature difference) stress, realizes the aspects such as heat collector is stablized, safe operation and also has the space of improving further.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, propose a kind of back of pipeline fold-type solar energy heat collector, to improve solar energy heating efficiency.
For achieving the above object, the present invention is by the following technical solutions:
A kind of back of pipeline fold-type solar energy heat collector, this device comprises shell, it is characterized in that: in shell, be provided with the heat storage that stacked structure is formed, be equipped with at least one inflection type heat exchange pipeline in heat storage, the two ends of inflection type heat exchange pipeline are connected with outlet conduit respectively with the inlet duct passing shell.
Further, described heat storage is tubbiness, and in it, hollow region forms heat-absorbing chamber; Opening part is provided with silica glass window.
Further, described heat storage comprises at least one stacking odd-level heat storage of alternate cycles and at least one even level heat storage, and cylindrically, interior hollow region forms heat-absorbing chamber for described odd-level heat storage and even level heat storage; Also comprise the top layer heat storage being stacked in heat storage top, described top layer heat storage is cylindric, and covers the top of heat-absorbing chamber, make heat storage form lower ending opening, be inverted tubbiness.
Further, inflection type heat exchange pipeline comprises at least one vertical section and at least one horizontal segment.
Further, odd-level heat storage, even level heat storage and top layer heat storage are respectively equipped with the corresponding through hole passed for vertical section, described through hole and vertical section fit tightly.
Further, described horizontal segment correspondence is located at the contact surface place between adjacent odd layer heat storage and even level heat storage, and/or the lower surface place of top layer heat storage.
Further, on described odd-level heat storage, even level heat storage and top layer heat storage, correspondence is provided with the shallow curved channel passed for horizontal segment respectively, and described shallow curved channel fits tightly with corresponding horizontal segment.
Further, correspondingly respectively on described odd-level heat storage and/or even level heat storage and/or top layer heat storage be provided with the dark curved channel passed for horizontal segment, between described dark curved channel and horizontal segment, be provided with certain interval.
Further, described vertical section is the straight tube that axis extends along vertical curve.
Further, described horizontal segment be axis along the horizontal plane in linearly extended straight tube, or axis along the horizontal plane in camber line extend curved pipe.
Further, the downside relative axis symmetry arrangement of shell has many root entries pipeline, and one end that each inlet duct stretches into shell is connected with corresponding inflection type heat exchange pipeline respectively, and the other end is connected respectively with same inlet manifold.
Further, the upside relative axis symmetry arrangement of shell has many outlet conduits, and one end that each outlet conduit stretches into shell is connected with corresponding inflection type heat exchange pipeline respectively, and the other end is connected respectively with same outlet collection pipe.
Further, described heat storage is made up of graphite material, and its inwall scribbles coating for selective absorption; Heat-insulation layer is provided with between heat storage and shell; Described shell is made up of aluminum alloy material.
Compared with prior art, tool has the following advantages in the present invention:
1, in the present invention, the heat exchanging pipe of heat collector adopts inflection type pipeline, and it increase effectively the length of single heat exchange tube, the heat exchange area of flow media in heat exchanger tube is increased, effectively improves the heat exchange efficiency of heat collector;
2, in the present invention, the heat storage of heat collector adopts stacked structure, can for the stacking number of plies of user's request flexible design, to adapt to the demand of different capacity heat collector;
3, the dark curved channel with pipeline with certain interval is set in the present invention on heat storage, make between heat storage and pipeline and leave expansion gap, make pipeline have free wxpansion end, and that cause stress different from pipe expansion rate due to heat storage can be eliminated, improve the reliability of device.
Meanwhile, structure of the present invention is simple, Be very effective, is suitable for promoting the use of.
Accompanying drawing explanation
Fig. 1 is back of pipeline fold-type solar energy heat collector structural representation;
Fig. 2 is back of pipeline fold-type solar energy heat collector heat storage stacked structure figure;
Fig. 3 is the odd-level heat storage body structure sketch of back of pipeline fold-type solar energy heat collector;
Fig. 4 is the even level heat storage body structure sketch of back of pipeline fold-type solar energy heat collector;
Fig. 5 is the top heat storage body structure sketch of back of pipeline fold-type solar energy heat collector;
Fig. 6 is that back of pipeline fold-type solar energy heat collector heat exchange pipeline arranges schematic diagram;
The sidewall L-type tubular construction sketch of Fig. 7 back of pipeline fold-type solar energy heat collector;
The sidewall U-tube structure diagram of Fig. 8 back of pipeline fold-type solar energy heat collector;
The top layer L-type tubular construction sketch of Fig. 9 back of pipeline fold-type solar energy heat collector;
The top layer U-tube structure diagram of Figure 10 back of pipeline fold-type solar energy heat collector;
Figure 11 odd-level heat storage coordinates schematic diagram with heat exchanger tube;
Figure 12 even level heat storage coordinates schematic diagram with heat exchanger tube;
Figure 13 top layer heat storage coordinates schematic diagram with heat exchanger tube;
Figure 14 back of pipeline fold-type solar energy heat collector regenerative heat exchange parts general assembly drawing;
In figure: inlet manifold 1, inlet duct 2, odd-level heat storage 1, even level heat storage 4, odd-level heat storage 25, top layer heat storage 6, heat-absorbing chamber 7, outlet conduit 8, outlet collection pipe 9, heat storage 10, aluminum alloy casing 11, heat-insulation layer 12, silica glass window 13, through hole 14, shallow curved channel 15, dark curved channel 16, sidewall L-type pipe 17, sidewall U-tube 18, top layer L-type pipe 19, top layer U-tube 20, inflection type heat exchange pipeline 21.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Fig. 1 to Figure 14, describe a kind of back of pipeline fold-type solar energy heat collector in the embodiment of the present invention, it comprises inlet manifold 1, inlet duct 2, heat-absorbing chamber 7, outlet conduit 8, outlet collection pipe 9, heat storage 10, aluminum alloy casing 11, heat-insulation layer 12, silica glass window 13, inflection type heat exchange pipeline 21.Heat storage 10 that be provided with open lower side in described aluminum alloy casing 11, that be inverted tubbiness, is filled with heat-insulation layer 12 in the gap between described heat storage 10 and shell 11.Described heat storage 10 is tubbiness, and in it, hollow region forms heat-absorbing chamber 7; On the aluminum alloy casing 11 of described heat storage 10 open side, correspondence is provided with silica glass window 13, and it is inner that described inflection type heat exchange pipeline 21 is arranged in heat storage 10.
In the embodiment of the present invention, there is at least one root entry pipeline 2 downside of aluminum alloy casing 11; Preferably, the inlet duct 2 of many relative axis symmetry arrangement is provided with.One end that inlet duct 2 stretches into shell 11 is connected with corresponding inflection type heat exchange pipeline 21 respectively, and the other end is connected respectively with same inlet manifold 1.
There is at least one outlet conduit 8 upside of aluminum alloy casing 11; Preferably, the outlet conduit 8 of many relative axis symmetry arrangement is provided with.One end that outlet conduit 8 stretches into shell 11 is connected with corresponding inflection type heat exchange pipeline 21 respectively, and the other end is connected respectively with same outlet collection pipe 9.
In the embodiment of the present invention, inlet duct 2 and inflection type heat exchange pipeline 21, by being welded to connect between inflection type heat exchange pipeline 21 and outlet conduit 8, to form single heat exchanger tube from the bottom to top.Preferably, many single heat exchange tubes are provided with in heat collector, the vertical axis of each single heat exchange tube opposite shell 11 is centrosymmetric distribution, and two ends are welded mutually be communicated with same inlet manifold 1, same outlet collection pipes 9 respectively, to form complete heat exchange pipeline system, flow in each pipeline of this system for heat transferring medium, and in flow process, absorb the heat in heat storage, reach the object that heat exchanging medium carries out heating.
The specific works process of solar energy heat collector of the present invention is as follows:
Sunlight enters heat-absorbing chamber through silica glass window after focusing mirror, and most energy is absorbed by the inwall heat-absorbent surface of heat storage, and small part energy is directly absorbed by intraluminal tracts, for heating the heat-exchange working medium flowed in heat exchanger tube.After heat storage heat absorption, temperature is elevated to heat exchange threshold temperature, and heat exchange pipeline system is by carrying out heat exchange fluid working substance wherein with heat storage, and working medium flows out through outlet conduit after heating, boiling, superheating process.
In running, when intensity of solar radiation changes, the temperature of heat storage changes thereupon, relies on the heat storage capacity of heat storage, the working medium of the certain thermodynamic parameter of output ensure that within the regular hour hot fluid outlet ports runner place stablizes, continuing.When regenerator temperature exceed reach design limit time, then by change flow to ensure the safety and reliability of heat exchanger.
Embodiment one
In the present embodiment, described heat storage 10 is made up of graphite material, and its inwall scribbles coating for selective absorption.
In the present embodiment, described heat storage 10 comprises at least one stacking odd-level heat storage 3,5 of alternate cycles and at least one even level heat storage 4, and described odd-level heat storage 3,5 and even level heat storage 4 are in circular; Also comprise the top layer heat storage 6 being stacked in heat storage 10 top, the covering open top in the form of annular discs of described top layer heat storage 6, makes heat storage 10 form the tubbiness of lower ending opening.
As shown in Figure 2, in the present embodiment, described heat storage 10 is graphite, and its inwall can scribble coating for selective absorption.Described heat storage 10 comprises bottom-up the odd-level heat storage 1, even level heat storage 4, odd-level heat storage 25 and the top layer heat storage 6 that superpose setting successively.
In the present embodiment, as shown in Figure 3, odd-level heat storage 1 is identical with odd-level heat storage 25 structure, is cylindrical shape; As shown in Figure 4, even level heat storage 4 is wait the large coaxial cylindrical shape arranged; As shown in Figure 5, top layer heat storage 6 is for waiting the cylindric of large coaxial setting.Thus, form the heat storage 10 being inverted tubbiness, and form the heat-absorbing chamber 7 of open lower side.
In the present embodiment, described odd-level heat storage 1 and odd-level heat storage 25 are provided with through hole 14 and shallow curved channel 15; Even level heat storage 4 is provided with through hole 14, shallow curved channel 15 and dark curved channel 16; Top layer heat storage 6 is provided with through hole 14 and dark curved channel 16.Above-mentioned each through hole 14, shallow curved channel 15 and dark curved channel 16 pass for inflection type heat exchange pipeline 21 and install.Meanwhile, the corresponding alignment of the shallow curved channel 15 on each adjacent odd layer heat storage 3,5 and even level heat storage 4 contact surface is arranged, the gap that the cross section of installing with the horizontal segment formed for inflection type heat exchange pipeline 21 is circle.
In the present embodiment, individual layer odd-level heat storage 3,5 thickness is greater than even level heat storage 4 thickness, to improve heat storage height kind further, to apply the heat collector with different capacity.
Embodiment two
As shown in Figure 6, in the present embodiment, inflection type heat exchange pipeline 21 comprises sidewall L-type pipe 17, sidewall U-tube 18, top layer L-type pipe 19, top layer U-tube 20, to make inflection type heat exchange pipeline 21, there is multiple vertical section and multiple horizontal segment, increase effectively the length of single heat exchange tube, the heat exchange area of flow media in heat exchanger tube is increased, effectively improves the heat exchange efficiency of heat collector.
As shown in Figure 7, sidewall L-type pipe 17 comprise one for the horizontal segment and of arc pipe be the vertical section of straight tube, horizontal segment is connected with the corresponding end of vertical section.As shown in Figure 8, sidewall U-tube 18 comprise one for the horizontal segment of arc pipe and two be the vertical section of straight tube, the two ends of horizontal segment are connected with corresponding vertical section end respectively.As shown in Figure 9, top layer L-type pipe 19 comprises one and is straight tube horizontal segment and is the vertical section of straight tube, and horizontal segment is connected with the corresponding end of vertical section.As shown in Figure 10, top layer U-tube 20 comprise one for the horizontal segment of straight tube and two be the vertical section of straight tube, the two ends of horizontal segment are connected with corresponding vertical section end respectively.
In the present embodiment, sidewall L-type pipe 17 with sidewall U-tube 18, sidewall U-tube 18 with top layer L-type pipe 19, top layer L-type pipe 19 with top layer U-tube 20 all by being welded to connect, to form inflection type heat exchange pipeline 21.
Embodiment three
As shown in figure 11, in the present embodiment, the through hole 14 of odd-level heat storage 3,5 fits tightly with the vertical section of sidewall L-type pipe 17, sidewall U-tube 18, and shallow curved channel 15 fits tightly with the horizontal segment of sidewall U-tube 18.
As shown in figure 12, in the present embodiment, the shallow curved channel 15 of even level heat storage 4 fits tightly with the horizontal segment of sidewall U-tube 18, leaves gap between the horizontal segment of dark curved channel 16 and sidewall L-type pipe 17.
As shown in figure 13, in the present embodiment, the through hole 14 of top layer heat storage 6 fits tightly with the vertical section of top layer L-type pipe 19, top layer U-tube 20.
In the present embodiment, the pipeline in each layer heat storage has worn according to cooperation requirement, and after welding assembly;
According to order from bottom to up, each layer heat storage is stacked gradually assembling again, and corresponding pipeline is welded, to be assembled into complete regenerative heat exchange body 10.
In the present embodiment, heat storage arranges the dark curved channel with pipeline with certain interval, makes between heat storage and pipeline and leave expansion gap, make pipeline have free wxpansion end, and that cause stress different from pipe expansion rate due to heat storage can be eliminated, improve the reliability of device.
The present invention is by the design optimization to solar heat-collection and heat-accumulation integral type heat collector cavity overall structure and heat exchange pipeline, increase effectively the heat exchange area of single pipe, the simultaneously design of expansion clearance eliminates and that cause stress different from pipe expansion rate due to heat storage, the arrangement of heat storage stack has also adapted to different power parameters, is beneficial to applying of device.
Embodiment in above-described embodiment can combine further or replace; and embodiment is only be described the preferred embodiments of the present invention; not the spirit and scope of the present invention are limited; under the prerequisite not departing from design philosophy of the present invention; the various changes and modifications that in this area, professional and technical personnel makes technical scheme of the present invention, all belong to protection scope of the present invention.
Claims (10)
1. a back of pipeline fold-type solar energy heat collector, this device comprises shell (11), it is characterized in that: in shell (11), be provided with the heat storage (10) that stacked structure is formed, be equipped with at least one inflection type heat exchange pipeline (21) in heat storage (10), the two ends of inflection type heat exchange pipeline (21) are connected with outlet conduit (8) with the inlet duct (2) passing shell (11) respectively.
2. a kind of back of pipeline fold-type solar energy heat collector according to claim 1, is characterized in that: described heat storage (10) is tubbiness, and in it, hollow region forms heat-absorbing chamber (7); Opening part is provided with silica glass window (13).
3. a kind of back of pipeline fold-type solar energy heat collector according to claim 2, it is characterized in that: described heat storage (10) comprises stacking at least one the odd-level heat storage (3,5) of alternate cycles and at least one even level heat storage (4), cylindrically, interior hollow region forms heat-absorbing chamber (7) for described odd-level heat storage (3,5) and even level heat storage (4);
Also comprise the top layer heat storage (6) being stacked in heat storage (10) top, described top layer heat storage (6) is in cylindric, and cover the top of heat-absorbing chamber (7), make heat storage (10) form the tubbiness of lower ending opening.
4., according to the arbitrary described a kind of back of pipeline fold-type solar energy heat collector of claims 1 to 3, it is characterized in that: inflection type heat exchange pipeline (21) comprises at least one vertical section and at least one horizontal segment.
5. a kind of back of pipeline fold-type solar energy heat collector according to claim 4, it is characterized in that: odd-level heat storage (3,5), even level heat storage (4) and top layer heat storage (6) are respectively equipped with the corresponding through hole (14) passed for vertical section, described through hole (14) and vertical section fit tightly.
6. a kind of back of pipeline fold-type solar energy heat collector according to claim 4, it is characterized in that: described horizontal segment correspondence is located at the contact surface place between adjacent odd layer heat storage (3,5) and even level heat storage (4), and/or the lower surface place of top layer heat storage (6);
On described odd-level heat storage (3,5), even level heat storage (4) and top layer heat storage (6), correspondence is provided with the shallow curved channel (15) passed for horizontal segment respectively, and described shallow curved channel (15) fits tightly with corresponding horizontal segment.
7. a kind of back of pipeline fold-type solar energy heat collector according to claim 4, it is characterized in that: correspondingly respectively on described odd-level heat storage (3,5) and/or even level heat storage (4) and/or top layer heat storage (6) be provided with the dark curved channel (16) passed for horizontal segment, between described dark curved channel (16) and horizontal segment, be provided with certain interval.
8. a kind of back of pipeline fold-type solar energy heat collector according to claim 4, is characterized in that: described vertical section is the straight tube that axis extends along vertical curve;
Described horizontal segment be axis along the horizontal plane in linearly extended straight tube, or axis along the horizontal plane in camber line extend curved pipe.
9. a kind of back of pipeline fold-type solar energy heat collector according to claim 4, it is characterized in that: the downside relative axis symmetry arrangement of shell (11) has many root entries pipeline (2), one end that each inlet duct (2) stretches into shell (11) is connected with corresponding inflection type heat exchange pipeline (21) respectively, and the other end is connected respectively with same inlet manifold (1);
The upside relative axis symmetry arrangement of shell (11) has many outlet conduits (8), one end that each outlet conduit (8) stretches into shell (11) is connected with corresponding inflection type heat exchange pipeline (21) respectively, and the other end is connected respectively with same outlet collection pipe (9).
10. a kind of back of pipeline fold-type solar energy heat collector according to claim 1, is characterized in that: described heat storage (10) is made up of graphite material, and its inwall scribbles coating for selective absorption; Heat-insulation layer (12) is provided with between heat storage (10) and shell (11); Described shell (11) is made up of aluminum alloy material.
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| CN201510683313.6A CN105258363B (en) | 2015-08-12 | 2015-10-20 | A kind of back of pipeline fold-type solar energy heat collector |
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| CN2015104926761 | 2015-08-12 | ||
| CN201510492676 | 2015-08-12 | ||
| CN201510683313.6A CN105258363B (en) | 2015-08-12 | 2015-10-20 | A kind of back of pipeline fold-type solar energy heat collector |
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| CN105258363A true CN105258363A (en) | 2016-01-20 |
| CN105258363B CN105258363B (en) | 2018-07-27 |
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| DE3718992A1 (en) * | 1986-06-05 | 1987-12-10 | Vaillant Joh Gmbh & Co | Heat exchanger and process for manufacturing it |
| CN102032823A (en) * | 2010-11-23 | 2011-04-27 | 中国科学院电工研究所 | Solar high-temperature heat storage system with solid heat storage medium |
| WO2012164102A2 (en) * | 2011-06-03 | 2012-12-06 | Vlaamse Instelling Voor Technologisch Onderzoek (Vito) | Method and system for buffering thermal energy and thermal energy buffer system |
| CN203216046U (en) * | 2013-04-28 | 2013-09-25 | 内蒙古太清光热能源有限公司 | Solar receiver |
| CN203215978U (en) * | 2013-04-18 | 2013-09-25 | 苏州艾克玛能源科技有限公司 | Stackable heat collection device |
| CN204154001U (en) * | 2014-08-24 | 2015-02-11 | 门立山 | A kind of domestic solar water heater |
| CN104567024A (en) * | 2015-01-17 | 2015-04-29 | 浙江大学 | Sensible heat storing type cavity light collecting and heat absorbing type solar heat collecting device and method |
-
2015
- 2015-10-20 CN CN201510683313.6A patent/CN105258363B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718992A1 (en) * | 1986-06-05 | 1987-12-10 | Vaillant Joh Gmbh & Co | Heat exchanger and process for manufacturing it |
| CN102032823A (en) * | 2010-11-23 | 2011-04-27 | 中国科学院电工研究所 | Solar high-temperature heat storage system with solid heat storage medium |
| WO2012164102A2 (en) * | 2011-06-03 | 2012-12-06 | Vlaamse Instelling Voor Technologisch Onderzoek (Vito) | Method and system for buffering thermal energy and thermal energy buffer system |
| CN203215978U (en) * | 2013-04-18 | 2013-09-25 | 苏州艾克玛能源科技有限公司 | Stackable heat collection device |
| CN203216046U (en) * | 2013-04-28 | 2013-09-25 | 内蒙古太清光热能源有限公司 | Solar receiver |
| CN204154001U (en) * | 2014-08-24 | 2015-02-11 | 门立山 | A kind of domestic solar water heater |
| CN104567024A (en) * | 2015-01-17 | 2015-04-29 | 浙江大学 | Sensible heat storing type cavity light collecting and heat absorbing type solar heat collecting device and method |
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