CN104110898A - Variable-irradiation and active-control groove-type solar light condensing and heat collecting device and method - Google Patents
Variable-irradiation and active-control groove-type solar light condensing and heat collecting device and method Download PDFInfo
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- CN104110898A CN104110898A CN201310137081.5A CN201310137081A CN104110898A CN 104110898 A CN104110898 A CN 104110898A CN 201310137081 A CN201310137081 A CN 201310137081A CN 104110898 A CN104110898 A CN 104110898A
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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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- 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
- Y02E10/47—Mountings or tracking
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Abstract
The invention discloses a variable-irradiation and active-control groove-type solar light condensing and heat collecting device which comprises a load-bearing rotating base and a groove-type solar heat collecting unit array fixedly connected on the load-bearing rotating base. The groove-type solar heat collecting unit array comprises multiple sets of groove-type solar heat collecting loops, each groove-type solar heat collecting loop comprises multiple groove-type solar heat collecting units in serial connection, the groove-type solar heat collecting units in each groove-type solar heat collecting loop are serially connected to be U-shaped, and the groove-type solar heat collecting unit array is driven by the load-bearing rotating base to horizontally rotate around a rotating point at the center of the bottom of the load-bearing rotating base. Adjusting of tracking axis azimuth can be realized, a function of realizing changing of the tracking axis azimuth from 0 to 9 degrees at different time periods each day can be realized, and a serial-parallel connection flow path adjusting and changing function is realized through a shutoff valve between two heat collecting pipe loops; two rows of parallelly-connected heat collecting pipes are changed to be serial connection in running, so that variable-irradiation heat radiating loss is reduced.
Description
Technical field
The present invention relates to solar energy light gathering and heat collecting technical field, especially a kind of groove type solar light-condensing and heat-collecting device and method that becomes irradiation active control.
Background technology
Because solar irradiation is discontinuous unstable, make solar heat power generation system through the off-design operating mode operation of being everlasting, cause the clean generating efficiency of solar energy offset peak efficiency far away while becoming irradiation, thereby cause the annual efficiency of solar energy thermal-power-generating low.Therefore the light and heat collection efficiency, how improving while becoming irradiation is the core of solar energy thermal-power-generating technical research.
Traditional groove type solar collecting system adopts uniaxiality tracking, and tracking axis azimuth is fixed, and causes and becomes illuminated optical loss greatly; And conduction oil adopts one-pass form, cause that to become irradiation radiation loss large, therefore light and heat collection efficiency is low.
For realizing groove type solar collecting system double-axis tracking, one is fixed on movably on stand by a groove type solar condenser in Sandia National Laboratory of the U.S., and stand is by tracking means real-time tracking sunshine.Experimental result shows, the larger error of tracking accuracy existence, and also bench scale is little, cannot realize scale.
Summary of the invention
(1) technical problem that will solve
In view of this, main purpose of the present invention is to provide a kind of groove type solar light-condensing and heat-collecting device and method that becomes irradiation active control, becomes irradiation high-effective concentration thermal-arrest to realize groove type solar heat collecting field.
(2) technical scheme
For achieving the above object, the invention provides a kind of groove type solar light-condensing and heat-collecting device that becomes irradiation active control, this device comprises: load-bearing rotation base 2; And be fixed in the groove type solar thermal-arrest cell array 1 on this load-bearing rotation base 2, this groove type solar thermal-arrest cell array comprises many groups groove type solar thermal-arrest loop, every group of groove type solar thermal-arrest loop comprises multiple groove type solar thermal-arrest unit that are connected in series, and the plurality of groove type solar thermal-arrest unit is serially connected in U-shaped in every group of groove type solar thermal-arrest loop; Wherein, this groove type solar thermal-arrest cell array 1 horizontally rotates around the point of rotation of load-bearing rotation base 2 bottom centre under the drive of this load-bearing rotation base 2.
In such scheme, this groove type solar thermal-arrest unit comprises parabolic trough type condenser, thermal-collecting tube and support, this parabolic trough type condenser is fixed on this on load-bearing rotation base 2 by this support, and this thermal-collecting tube is fixed on the optically focused axis of this parabolic trough type condenser.
In such scheme, be serially connected in U-shaped groove type solar thermal-arrest unit at every group, the thermal-collecting tube of each groove type solar thermal-arrest unit is formed thermal-collecting tube loop by seamless being connected in series.
In such scheme, in this many groups groove type solar thermal-arrest loop, the port of export in first group of groove type solar thermal-arrest loop is provided with the first outlet valve, the arrival end in last group groove type solar thermal-arrest loop is provided with n inlet valve, n is greater than 1 natural number, and the arrival end in each group of groove type solar thermal-arrest loop between first group and last group groove type solar thermal-arrest loop is all provided with inlet valve, and the port of export is all provided with outlet valve.
In such scheme, group is also installed between each group of groove type solar thermal-arrest loop and connects valve, close each outlet valve and each inlet valve and open each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be serially connected in a loop; Open each outlet valve and each inlet valve and close each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be connected in parallel into multiple loops.
In such scheme, the bottom surface of this load-bearing rotation base 2 is provided with slide rail, on this slide rail, roller is installed, and this load-bearing rotation base 2 can be horizontally rotated around this point of rotation around load-bearing rotation base 2 bottom centre.
In such scheme, between the roller of this load-bearing rotation base 2 and slide rail, also install snap close, locked this load-bearing rotation base 2 of fixing when arbitrarily angled for rotating at this load-bearing rotation base 2.
In such scheme, this load-bearing rotation base 2 adopts hydraulic-driven or electric drive, and type of belt drive is mechanical gear, can drive groove type solar thermal-arrest cell array 1 to horizontally rotate arbitrarily angled around the point of rotation.This load-bearing rotation base 2 can turn 90 degrees around point of rotation horizontal rotary.
For achieving the above object, the invention provides a kind of groove type solar light gathering and heat collecting method that becomes irradiation active control, the method comprises: open load-bearing rotation base, this load-bearing rotation base is horizontally rotated around the point of rotation; And this groove type solar thermal-arrest cell array 1 horizontally rotates under the drive of this load-bearing rotation base 2.
In such scheme, close each outlet valve and each inlet valve and open each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be serially connected in a loop; Open each outlet valve and each inlet valve and close each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be connected in parallel into multiple loops.
In such scheme, rotate to when arbitrarily angled at this load-bearing rotation base 2, carry out locked this load-bearing rotation base 2 of fixing by opening lock catch.
(3) beneficial effect
Can find out from technique scheme, the present invention has following beneficial effect:
1, groove type solar light-condensing and heat-collecting device and the method for change irradiation active control provided by the invention, can realize 0 degree (north and south layout) in the different periods of every day and change function to 90 degree (thing layout), change solar irradiation incidence angle, reduce to become illuminated optical loss, make average annual light and heat collection efficiency improve approximately 8 percentage points.
2, groove type solar light-condensing and heat-collecting device and the method for change irradiation active control provided by the invention can realize connection in series-parallel flow process modulation function in the time becoming irradiation, changes thermal-collecting tube and imports and exports conduction oil temperature and flow, thereby reduce to become irradiation radiation loss.
Brief description of the drawings
Fig. 1 is the structural representation of the groove type solar light-condensing and heat-collecting device of change irradiation active control provided by the invention;
Fig. 2 is the profile of the groove type solar light-condensing and heat-collecting device of change irradiation active control provided by the invention;
Fig. 3 is the structural representation according to the groove type solar light-condensing and heat-collecting device of the change irradiation active control of the embodiment of the present invention;
Fig. 4 is the profile according to the groove type solar light-condensing and heat-collecting device of the change irradiation active control of the embodiment of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
As depicted in figs. 1 and 2, Fig. 1 is the structural representation of the groove type solar light-condensing and heat-collecting device of change irradiation active control provided by the invention, Fig. 2 is the profile of the groove type solar light-condensing and heat-collecting device of change irradiation active control provided by the invention, and this device comprises: load-bearing rotation base 2; And be fixed in the groove type solar thermal-arrest cell array 1 on this load-bearing rotation base 2, this groove type solar thermal-arrest cell array comprises many groups groove type solar thermal-arrest loop, every group of groove type solar thermal-arrest loop comprises multiple groove type solar thermal-arrest unit that are connected in series, and the plurality of groove type solar thermal-arrest unit is serially connected in U-shaped in every group of groove type solar thermal-arrest loop; Wherein, this groove type solar thermal-arrest cell array 1 horizontally rotates around the point of rotation of load-bearing rotation base 2 bottom centre under the drive of this load-bearing rotation base 2; The anglec of rotation can reach 90 degree.
Wherein, this groove type solar thermal-arrest unit comprises parabolic trough type condenser, thermal-collecting tube and support, and this parabolic trough type condenser is fixed on this on load-bearing rotation base 2 by this support, and this thermal-collecting tube is fixed on the optically focused axis of this parabolic trough type condenser.Be serially connected in U-shaped groove type solar thermal-arrest unit at every group, the thermal-collecting tube of each groove type solar thermal-arrest unit is formed thermal-collecting tube loop by seamless being connected in series.In this many groups groove type solar thermal-arrest loop, the port of export in first group of groove type solar thermal-arrest loop is provided with the first outlet valve, the arrival end in last group groove type solar thermal-arrest loop is provided with n inlet valve, n is greater than 1 natural number, and the arrival end in each group of groove type solar thermal-arrest loop between first group and last group groove type solar thermal-arrest loop is all provided with inlet valve, and the port of export is all provided with outlet valve.Group is also installed between each group of groove type solar thermal-arrest loop and connects valve, close each outlet valve and each inlet valve and open each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be serially connected in a loop; Open each outlet valve and each inlet valve and close each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be connected in parallel into multiple loops.
In addition, the bottom surface of this load-bearing rotation base 2 is provided with slide rail, on this slide rail, roller is installed, and this load-bearing rotation base 2 can be horizontally rotated around this point of rotation around load-bearing rotation base 2 bottom centre.Between the roller of this load-bearing rotation base 2 and slide rail, also install snap close, locked this load-bearing rotation base 2 of fixing when arbitrarily angled for rotating at this load-bearing rotation base 2.This load-bearing rotation base 2 adopts hydraulic-driven or electric drive, and type of belt drive is mechanical gear, can drive groove type solar thermal-arrest cell array 1 to horizontally rotate arbitrarily angled around the point of rotation.This load-bearing rotation base 2 can turn 90 degrees around point of rotation horizontal rotary.
The groove type solar light-condensing and heat-collecting device of the change irradiation active control based on shown in Fig. 1 and Fig. 2, the present invention also provides a kind of groove type solar light gathering and heat collecting method that becomes irradiation active control, the method comprises: open load-bearing rotation base, this load-bearing rotation base is horizontally rotated around the point of rotation; And this groove type solar thermal-arrest cell array 1 horizontally rotates under the drive of this load-bearing rotation base 2.Close each outlet valve and each inlet valve and open each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be serially connected in a loop.Open each outlet valve and each inlet valve and close each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be connected in parallel into multiple loops.Further, rotate to when arbitrarily angled at this load-bearing rotation base 2, carry out locked this load-bearing rotation base 2 of fixing by opening lock catch.
In one embodiment of the invention, as shown in Figures 3 and 4, described groove type solar thermal-arrest cell array comprises parabolic trough type condenser, thermal-collecting tube and support.Condenser is divided into two groups, and totally four rows, arrange for every group two, every row's length 60m, and interval 15m between adjacent two row's condensers, condenser opening 5.77m, thermal-arrest metal caliber 0.07m, conduction oil is elevated to 292 DEG C from 276 DEG C.Support is used for supporting parabolic trough type condenser, and is fixed on load-bearing rotation base, and load-bearing rotation base can drive groove type solar thermal-arrest cell array to turn 90 degrees around center of circle point of rotation horizontal rotary.The port of export in first group of groove type solar thermal-arrest loop is provided with outlet valve 4, the arrival end in second group of groove type solar thermal-arrest loop is provided with inlet valve 5, between first group and second group of groove type solar thermal-arrest loop, be provided with and be connected the port of export in 6, the first groups of groove type solar thermal-arrest loops of valve and the arrival end in second group of groove type solar thermal-arrest loop is connected by being connected valve 6.In the time that irradiation is better, close and connect valve 6, open 5, two heat collector loop parallel runnings of outlet valve 4 and inlet valve; In the time that irradiation is bad, close outlet valve 4 and inlet valve 5, open and connect valve 6, thereby change the thermal-collecting tube of two row's parallel connections into series operation.
Taking the meteorological data of Beijing area as study condition, choose the Spring Equinox, the Summer Solstice, the Autumnal Equinox, calculate four typical days of Winter Solstice, result of calculation shows, the groove type solar light-condensing and heat-collecting device of described change irradiation active control and method make the Spring Equinox everyday all optically focused collecting efficiency rise to 62% from 52%, the Autumnal Equinox everyday all optically focused collecting efficiency rise to 63% from 55%, the winter solstice, average daily light and heat collection efficiency rose to 59% from 25%.Its average annual collecting efficiency reaches 64.5%. and improves approximately 9 percentage points than the average annual light and heat collection efficiency of traditional uniaxiality tracking, is equivalent to assemble 1kW/m
2solar energy, can save mirror scene long-pending approximately 14%.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. a groove type solar light-condensing and heat-collecting device that becomes irradiation active control, is characterized in that, this device comprises:
Load-bearing rotation base (2); And
Be fixed in the groove type solar thermal-arrest cell array (1) on this load-bearing rotation base (2), this groove type solar thermal-arrest cell array comprises many groups groove type solar thermal-arrest loop, every group of groove type solar thermal-arrest loop comprises multiple groove type solar thermal-arrest unit that are connected in series, and the plurality of groove type solar thermal-arrest unit is serially connected in U-shaped in every group of groove type solar thermal-arrest loop;
Wherein, this groove type solar thermal-arrest cell array (1) horizontally rotates around the point of rotation of load-bearing rotation base (2) bottom centre under the drive of this load-bearing rotation base (2).
2. the groove type solar light-condensing and heat-collecting device of change irradiation active control according to claim 1, it is characterized in that, this groove type solar thermal-arrest unit comprises parabolic trough type condenser, thermal-collecting tube and support, this parabolic trough type condenser is fixed on this around load-bearing rotation base (2) above by this support, and this thermal-collecting tube is fixed on the optically focused axis of this parabolic trough type condenser.
3. the groove type solar light-condensing and heat-collecting device of change irradiation active control according to claim 2, it is characterized in that, be serially connected in U-shaped groove type solar thermal-arrest unit at every group, the thermal-collecting tube of each groove type solar thermal-arrest unit is formed thermal-collecting tube loop by seamless being connected in series.
4. the groove type solar light-condensing and heat-collecting device of change irradiation active control according to claim 3, it is characterized in that, in this many groups groove type solar thermal-arrest loop, the port of export in the thermal-collecting tube loop in first group of groove type solar thermal-arrest loop is provided with the first outlet valve, the arrival end in the thermal-collecting tube loop in last group groove type solar thermal-arrest loop is provided with n inlet valve, n is greater than 1 natural number, and the arrival end in the thermal-collecting tube loop in each group of groove type solar thermal-arrest loop between first group and last group groove type solar thermal-arrest loop is all provided with inlet valve, the port of export is all provided with outlet valve.
5. the groove type solar light-condensing and heat-collecting device of change irradiation active control according to claim 4, it is characterized in that, group is also installed between each group of groove type solar thermal-arrest loop and connects valve, close each outlet valve and each inlet valve and open each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be serially connected in a loop; Open each outlet valve and each inlet valve and close each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be connected in parallel into multiple loops.
6. the groove type solar light-condensing and heat-collecting device of change irradiation active control according to claim 1, it is characterized in that, the bottom surface of this load-bearing rotation base (2) is provided with slide rail, on this slide rail, roller is installed, this load-bearing rotation base (2) can be horizontally rotated around this point of rotation around load-bearing rotation base (2) bottom centre.
7. the groove type solar light-condensing and heat-collecting device of change irradiation active control according to claim 6, it is characterized in that, between the roller of this load-bearing rotation base (2) and slide rail, also install snap close, locked this load-bearing rotation base (2) of fixing when arbitrarily angled for rotating at this load-bearing rotation base (2).
8. the groove type solar light-condensing and heat-collecting device of change irradiation active control according to claim 1, it is characterized in that, this load-bearing rotation base (2) adopts hydraulic-driven or electric drive, type of belt drive is mechanical gear, can drive groove type solar thermal-arrest cell array (1) to horizontally rotate arbitrarily angled around the point of rotation.
9. the groove type solar light-condensing and heat-collecting device of change irradiation active control according to claim 8, is characterized in that, this load-bearing rotation base (2) can turn 90 degrees around point of rotation horizontal rotary.
10. become a groove type solar light gathering and heat collecting method for irradiation active control, be applied to the device described in any one in claim 1 to 9, it is characterized in that, the method comprises:
Open load-bearing rotation base, this load-bearing rotation base is horizontally rotated around the point of rotation; And
This groove type solar thermal-arrest cell array (1) horizontally rotates under the drive of this load-bearing rotation base (2).
The groove type solar light gathering and heat collecting method of 11. change irradiation active controls according to claim 10, is characterized in that,
Close each outlet valve and each inlet valve and open each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be serially connected in a loop;
Open each outlet valve and each inlet valve and close each group of connection valve simultaneously, respectively organize groove type solar thermal-arrest loop and be connected in parallel into multiple loops.
The groove type solar light gathering and heat collecting method of 12. change irradiation active controls according to claim 10, it is characterized in that, rotate to when arbitrarily angled at this load-bearing rotation base (2), carry out locked this load-bearing rotation base (2) of fixing by opening lock catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310137081.5A CN104110898B (en) | 2013-04-19 | A kind of groove type solar light-condensing and heat-collecting device becoming irradiation active control and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310137081.5A CN104110898B (en) | 2013-04-19 | A kind of groove type solar light-condensing and heat-collecting device becoming irradiation active control and method |
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| Publication Number | Publication Date |
|---|---|
| CN104110898A true CN104110898A (en) | 2014-10-22 |
| CN104110898B CN104110898B (en) | 2016-11-30 |
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| CN104826569A (en) * | 2015-04-10 | 2015-08-12 | 中国科学院工程热物理研究所 | Multi-stage injection-type line focus solar absorption reactor |
| CN105042893A (en) * | 2015-08-11 | 2015-11-11 | 中国华能集团清洁能源技术研究院有限公司 | Inclined-axis linear tracking solar concentrating and heat collection device and method |
| CN105156285A (en) * | 2015-09-16 | 2015-12-16 | 中国科学院工程热物理研究所 | Non-energy-storage wide-irradiation condensation solar-Karina generating system and method |
| CN106766272A (en) * | 2016-12-15 | 2017-05-31 | 中国科学院工程热物理研究所 | A kind of parabolic trough type solar thermal collector actively defocuses regulation and control method |
| CN108917215A (en) * | 2017-04-19 | 2018-11-30 | 中国科学院工程热物理研究所 | Solar energy and fuel heat Chemical complementation power generator and method |
| CN108917206A (en) * | 2017-04-19 | 2018-11-30 | 中国科学院工程热物理研究所 | A kind of fuel conversion device and method of Driven by Solar Energy |
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| CN105156285A (en) * | 2015-09-16 | 2015-12-16 | 中国科学院工程热物理研究所 | Non-energy-storage wide-irradiation condensation solar-Karina generating system and method |
| CN105156285B (en) * | 2015-09-16 | 2018-02-27 | 中国科学院工程热物理研究所 | One kind is without the wide irradiation Photospot solar card Linne electricity generation system of accumulation of energy and method |
| CN106766272A (en) * | 2016-12-15 | 2017-05-31 | 中国科学院工程热物理研究所 | A kind of parabolic trough type solar thermal collector actively defocuses regulation and control method |
| CN106766272B (en) * | 2016-12-15 | 2019-12-20 | 中国科学院工程热物理研究所 | Active defocusing regulation and control method for parabolic trough type solar thermal collector |
| CN108917215A (en) * | 2017-04-19 | 2018-11-30 | 中国科学院工程热物理研究所 | Solar energy and fuel heat Chemical complementation power generator and method |
| CN108917206A (en) * | 2017-04-19 | 2018-11-30 | 中国科学院工程热物理研究所 | A kind of fuel conversion device and method of Driven by Solar Energy |
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