CN109341108A - A kind of tower type solar energy thermal power generation station heliostat field - Google Patents
A kind of tower type solar energy thermal power generation station heliostat field Download PDFInfo
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- CN109341108A CN109341108A CN201810962725.7A CN201810962725A CN109341108A CN 109341108 A CN109341108 A CN 109341108A CN 201810962725 A CN201810962725 A CN 201810962725A CN 109341108 A CN109341108 A CN 109341108A
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- heliostat
- ring
- interlaced arrangement
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- thermal power
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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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Abstract
The invention discloses a kind of tower type solar energy thermal power generation station heliostat fields, belong to field of solar thermal power generation, including the intensive layout area for arranging heliostat as the center of circle in a ring from inside to outside to receive tower and interlaced arrangement region, the mutual close arrangement of heliostat of the same ring and adjacent ring of intensive layout area, the heliostat interlaced arrangement of two, interlaced arrangement region adjacent ring.The present invention effectively improves the light gathering efficiency of heliostat field, and the quantity of heliostat can be reduced under the daylighting area of identical mirror field and reduces power station occupied area, plays the role of reducing initial outlay.
Description
Technical field
The present invention relates to field of solar thermal power generation, especially a kind of heliostat field in power station.
Background technique
Tower-type solar thermal power generating system is one of important form of solar power generation, tower-type solar thermal power generating system one
As include heliostat field that absorption tower and heliostat form, absorption tower includes installation tower, and installation top of tower is provided with heat dump, fixed
Solar eyepiece is installed on the base, and it is 40%~50% even more to occupy overall cost of ownership for heliostat field cost.The cloth of heliostat field
Setting optimization design seems particularly significant, and the optimization for tower power station heliostat field includes design parameter optimization and arrangement form
Optimization.Existing Jing Chang arrangement mostly uses greatly phyllotaxy ranking method and radial network method, it is necessary to guarantee that every face heliostat possesses enough
Space, phyllotaxy ranking method placement process is fairly simple and heliostat density is larger, but its be only applicable to heliostat quantity compared with
When few, there is certain limitation；Mode of the radial network method based on radially staggered arrangement, effectively reduces the shade in mirror field
And eclipsing loss, but the density of heliostat is smaller, and occupied area is caused to increase, and increases investment.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of tower type solar energy thermal power generation station heliostat fields, effectively improve
The light gathering efficiency of heliostat field can reduce the quantity of heliostat under the daylighting area of identical mirror field and reduce power station land occupation face
Product plays the role of reducing initial outlay.
In order to solve the above technical problems, the technical scheme adopted by the invention is that:
A kind of tower type solar energy thermal power generation station heliostat field, including by heliostat to receive tower as the center of circle be from inside to outside in ring
The intensive layout area and interlaced arrangement region, the same ring of intensive layout area and the heliostat of adjacent ring of shape arrangement are mutually close
Arrangement, the heliostat interlaced arrangement of two, interlaced arrangement region adjacent ring.
Technical solution of the present invention further improvement lies in that: the same ring of the intensive layout area and the heliostat of adjacent ring
The distance between be disposed as that the minimum allowable range of mechanical collision does not occur.
Technical solution of the present invention further improvement lies in that: the heliostat in the interlaced arrangement region is divided into multiple groups, often
A group includes the basic ring and alternative ring being successively alternately arranged from inside to outside.
Technical solution of the present invention further improvement lies in that: the distance between the adjacent heliostat of every group of basic ring of heliostat
It is set as characteristic diameter DM
Wherein A and B indicates the width and height of heliostat.
Technical solution of the present invention further improvement lies in that: the starting ring radius of intensive layout area is Rmin,0, staggeredly cloth
The starting ring radius for setting region is Rmix,0, Rmin,0=Rmix,0/ 3, ring radius is Rmin,0To Rmix,0Using intensive arrangement, ring radius
Rmix,0Interlaced arrangement is used later,
Rmix,0It is exactly to work as Δr,0Equal to or more than numerical value corresponding after 2B, wherein B indicates the height of heliostat, ht
Indicate the base height of heliostat, H is the sum of half and installation tower tower height of heat dump height.
Technical solution of the present invention further improvement lies in that: the adjacent basic ring in interlaced arrangement region or it is adjacent staggeredly
The distance between ring is Δr,i(i=0,1,2 ...),
Wherein Rmix,iRepresent the lesser basic ring of radius or friendship in two neighboring basic ring or two neighboring alternative ring
The ring radius of wrong ring, wherein first alternative ring radius is the median of two neighboring basic ring radius in every group.
Technical solution of the present invention further improvement lies in that: adjacent two heliostat of the same ring of intensive layout area it
Between rotate angle are as follows:
R in formulajIt is expressed as the radius of each ring in intensive layout area, j is illustrated as intensively arranging, LhIt is expressed as heliostat
Clinodiagonal length, in intensive layout area, each ring requires to recalculate primary rotation angle when arrangement.
Technical solution of the present invention further improvement lies in that: adjacent two heliostat of the same ring in interlaced arrangement region it
Between rotate angle are as follows:
R in formulaiIt is expressed as every group of head ring radius in interlaced arrangement region, i is illustrated as interlaced arrangement, in interlaced arrangement region
In, each group requires to recalculate primary rotation angle when arrangement, and rotation angle is identical in same group.
Technical solution of the present invention further improvement lies in that: in interlaced arrangement region every group with ring between adjacent heliostat
Distance can become larger with becoming larger for ring radius, when the distance is equal to or more than 1.35 times of heliostat characteristic diameters, carry out
Next group of arrangement.
Technical solution of the present invention further improvement lies in that: be divided into passageway between each group heliostat of interlaced arrangement region
Width Deltar,n, wherein n indicates the number of rings in every group,
R in formulamix,nThe as most outer ring radius of interlaced arrangement region group.
By adopting the above-described technical solution, the technological progress achieved by the present invention is:
The present invention provides a kind of tower type solar energy thermal power generation station heliostat field, under the premise of guaranteeing heliostat reasonable Arrangement,
The light gathering efficiency for effectively improving heliostat field can reduce the quantity of heliostat under the daylighting area of identical mirror field and reduce electricity
It stands occupied area, plays the role of reducing initial outlay；Intensive layout area and interlaced arrangement region are provided explicitly simultaneously
Region division principle is more convenient compared to existing mirror field method for arranging, it is easier to computer programming to be realized, to heliostat field
Preferred arrangement research provides new theoretical foundation.
Interlaced area is divided into multiple groups, when using interlaced arrangement, with the increase of arrangement number of rings and heliostat quantity, often
The spacing of group most outer ring can become larger, and a new group is rearranged under the premise of not blocking, can save land occupation
Space even more can be improved mirror field efficiency.
In interlaced arrangement region every group with ring the distance between adjacent heliostat be equal to or more than 1.35 times of heliostat features
When diameter, next group of arrangement is carried out, why 1.35 times of heliostat characteristic diameters is given here, is compared by multi-group data, from
1.2 times -2.0 times, using same arrangement, target component is mirror field efficiency, and at 1.35 times, mirror field efficiency is best.
Detailed description of the invention
Fig. 1 is heliostat field arrangement schematic diagram of the present invention；
Fig. 2 is the position view of present invention installation tower, heat dump and heliostat field；
Wherein, 1, installation tower, 2, heat dump.
Specific embodiment
The present invention is described in further details below with reference to embodiment:
A kind of tower type solar energy thermal power generation station heliostat field, as shown in Figure 1, 2, including by heliostat to receive tower as the center of circle
The intensive layout area arranged in a ring from inside to outside and interlaced arrangement region are (wherein in Fig. 1 in order to use the intensive cloth of textual representation
Region and interlaced arrangement region are set, a part of heliostat is omitted in drawing area), the same ring of intensive layout area and determining for adjacent ring
The mutual close arrangement of solar eyepiece, the heliostat interlaced arrangement of two, interlaced arrangement region adjacent ring.Wherein heliostat passes through base
Seat installation, receiving tower includes the heat dump 2 installed tower 1 and installation top of tower is arranged in.The starting ring half of intensive layout area
Diameter is Rmin,0, the starting ring radius in interlaced arrangement region is Rmix,0, Rmin,0=Rmix,0/ 3, ring radius is Rmin,0To Rmix,0Using
Intensive arrangement, ring radius Rmix,0Interlaced arrangement is used later,
Rmix,0It is exactly to work as Δr,0Equal to or more than numerical value corresponding after 2B, because when calculating, it is impossible to
It just calculates to the formula and is equal to 2B, when iterative calculation, it is possible to can calculate and be greater than 2B, what gave here, which be one, sentences
According to 2B is existing as a critical point.Wherein B indicates the height of heliostat, htIndicate the base height of heliostat；H
For the sum of the half of heat dump height and installation tower tower height.
Using intensive arrangement in distance heat absorption closer a certain range of tower, because of cosine efficiency and big laboured breathing in the region
Reduction rate is relatively high, can make full use of the endotherm area of heliostat；Start apart from heat dump a certain distance using diameter
It is remoter apart from heat dump since there are differences in height between heat dump and heliostat to interlaced arrangement, the sunlight of heliostat reflection
It is easier to be blocked by front-seat heliostat.
The light gathering efficiency that heliostat field can be effectively improved using the heliostat field of intensive arrangement and interlaced arrangement, identical
Mirror field daylighting area under can reduce heliostat quantity and reduce power station occupied area, play reduce initial outlay work
With.The present invention provides specific region division principle, compares under the intensive arrangement and interlaced arrangement combination redefined
In existing mirror field, method for arranging is more convenient, it is easier to realize computer programming, provide the preferred arrangement research of heliostat field
New theoretical foundation.
Wherein the distance between the same ring and the heliostat of adjacent ring of intensive layout area are disposed as machinery does not occur touching
The minimum allowable range hit.Angle is rotated between adjacent two heliostat of the same ring of intensive layout area are as follows:
R in formulajIt is expressed as the radius of each ring in intensive layout area, j is illustrated as intensively arranging；LhIt is expressed as heliostat
Clinodiagonal length, in intensive layout area, each ring requires to recalculate primary rotation angle when arrangement.
The heliostat in interlaced arrangement region is divided into multiple groups, and each group includes the basic ring being successively alternately arranged from inside to outside
And alternative ring.The distance between adjacent heliostat of every group of basic ring of heliostat is (two adjacent to represent the small round of heliostat
Arc length between the heart) it is set as characteristic diameter DM
Wherein A and B indicates the width and height of heliostat.The minimum value of DM can be found out, that is to say, that by formula to reality
Existing unobstructed, DM will at least start to walk from the numerical value of minimum value.
The distance between the adjacent basic ring in interlaced arrangement region or adjacent alternative ring are Δr,i(i=0,1,2 ...),
Wherein Rmix,iRepresent the lesser basic ring of radius or friendship in two neighboring basic ring or two neighboring alternative ring
The ring radius of wrong ring, wherein first alternative ring radius is the median of two neighboring basic ring radius, first alternative ring in every group
Alternative ring radius later also uses above-mentioned formula to carry out addition and can calculate.
Such as: the basic basic ring 2- alternative ring 3 of ring 0- alternative ring 1- is defined, above-mentioned formula, calculating is between 0 and 2
It is spaced (Rmix,iRepresent the radius of basic ring 0) or 1 and 3 between interval (Rmix,iRepresent the radius of alternative ring 1), as 0 He
Determination between 1, using the median of basic ring 0 and basic ring 2, that is to say, that initially to determine it is basic ring 0, hand over
Wrong ring 1, the radius of basic ring 2, the radius of back just can and so on, 3 radius of alternative ring be alternative ring 1 radius add
Upper Δr,i。
Angle is rotated between adjacent two heliostat of the same ring in interlaced arrangement region are as follows:
R in formulaiIt is expressed as every group of head ring radius in interlaced arrangement region, i is illustrated as interlaced arrangement, in interlaced arrangement region
In, each group requires to recalculate primary rotation angle when arrangement, and rotation angle is identical in same group.
In interlaced arrangement region every group with ring, the distance between adjacent heliostat can be become larger with becoming larger for ring radius,
When the distance is equal to or more than 1.35 times of heliostat characteristic diameters, next group of arrangement is carried out.
Walkway clearance Δ is divided between the heliostat of every group of interlaced arrangement regionr,n, wherein n indicates the number of rings in every group,
R in formulamix,nThe as most outer ring radius of interlaced arrangement region group.
Wherein arrangement how many group in interlaced arrangement region are not artificial defined, finally by heliostat quantity and arrangement
What form determined, it may arrange 6 to 10 groups or so.Because the quantity of heliostat can from 1000 faces to tens of thousands of faces etc..
By taking the heliostat field of certain engineering 100MW fuse salt tower type solar photo-thermal power station as an example, sun multiple is selected in system
Select 2.6, heat accumulation duration selects 12 hours, be respectively adopted that this patent provides it is intensive-staggeredly combine method for arranging and conventional radiation
Network arrangement method is arranged the Jing Chang, needs 65443 face of heliostat altogether using this method, compares conventional radiation network technique
Reduce by about 1500 face heliostats, mirror field whole efficiency promotes 7.76%, save floor occupying area saving 5% up to 55.963%.
Claims (10)
1. a kind of tower type solar energy thermal power generation station heliostat field, it is characterised in that: including by heliostat using receive tower as the center of circle by
The intensive layout area arranged in a ring from inside to outside and interlaced arrangement region, the same ring of intensive layout area and the settled date of adjacent ring
The mutual close arrangement of mirror, the heliostat interlaced arrangement of two, interlaced arrangement region adjacent ring.
2. a kind of tower type solar energy thermal power generation station heliostat field according to claim 1, it is characterised in that: the intensive cloth
The distance between same ring and the heliostat of adjacent ring for setting region are disposed as that the minimum allowable range of mechanical collision does not occur.
3. a kind of tower type solar energy thermal power generation station heliostat field according to claim 1, it is characterised in that: the staggeredly cloth
The heliostat for setting region is divided into multiple groups, and each group includes the basic ring and alternative ring being successively alternately arranged from inside to outside.
4. a kind of tower type solar energy thermal power generation station heliostat field according to claim 3, it is characterised in that: every group of heliostat
The distance between the adjacent heliostat of basic ring is set as characteristic diameter DM
Wherein A and B indicates the width and height of heliostat.
5. a kind of tower type solar energy thermal power generation station heliostat field according to claims 1 to 4, it is characterised in that: intensive cloth
The starting ring radius for setting region is Rmin,0, the starting ring radius in interlaced arrangement region is Rmix,0, Rmin,0=Rmix,0/ 3, ring radius
For Rmin,0To Rmix,0Using intensive arrangement, ring radius Rmix,0Interlaced arrangement is used later,
Rmix,0It is exactly to work as Δr,0Equal to or more than numerical value corresponding after 2B, wherein B indicates the height of heliostat, htIt indicates
The base height of heliostat, H are the sum of half and installation tower (1) tower height of heat dump (2) height.
6. a kind of tower type solar energy thermal power generation station heliostat field according to claim 5, it is characterised in that: interlaced arrangement area
The distance between the adjacent basic ring in domain or adjacent alternative ring are Δr,i(i=0,1,2 ...),
Wherein Rmix,iRepresent the lesser basic ring of radius or alternative ring in two neighboring basic ring or two neighboring alternative ring
Ring radius, wherein in every group first alternative ring radius be two neighboring basic ring radius median.
7. a kind of tower type solar energy thermal power generation station heliostat field according to claim 5, it is characterised in that: intensively arrange area
Angle is rotated between adjacent two heliostat of the same ring in domain are as follows:
R in formulajIt is expressed as the radius of each ring in intensive layout area, j is illustrated as intensively arranging, LhIt is expressed as the oblique of heliostat
Catercorner length, in intensive layout area, each ring requires to recalculate primary rotation angle when arrangement.
8. a kind of tower type solar energy thermal power generation station heliostat field according to claim 4, it is characterised in that: interlaced arrangement area
Angle is rotated between adjacent two heliostat of the same ring in domain are as follows:
R in formulaiIt is expressed as every group of head ring radius in interlaced arrangement region, i is illustrated as interlaced arrangement, in interlaced arrangement region, often
A group requires to recalculate primary rotation angle when arrangement, and rotation angle is identical in same group.
9. a kind of tower type solar energy thermal power generation station heliostat field according to claim 4, it is characterised in that: interlaced arrangement area
In domain every group with ring, the distance between adjacent heliostat can be become larger with becoming larger for ring radius, be equal to or more than to the distance
When 1.35 times of heliostat characteristic diameters, next group of arrangement is carried out.
10. a kind of tower type solar energy thermal power generation station heliostat field according to claim 5, it is characterised in that: interlaced arrangement
Walkway clearance Δ is divided between each group heliostat of regionr,n, wherein n indicates the number of rings in every group,
R in formulamix,nThe as most outer ring radius of interlaced arrangement region group.
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| CN201810962725.7A CN109341108B (en) | 2018-08-22 | 2018-08-22 | Heliostat field of tower type solar thermal power station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963973A (en) * | 2021-03-22 | 2021-06-15 | 蒙映峰 | Construction method of photo-thermal power station |
| CN114096790A (en) * | 2019-05-09 | 2022-02-25 | 西多斯咨询和工程有限公司 | Asymmetric solar receiver |
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| US20130087139A1 (en) * | 2010-06-16 | 2013-04-11 | Brightsource Industries (Israel) Ltd. | Solar field layout and systems and methods for arranging, maintaining, and operating heliostats therein |
| CN106196648A (en) * | 2010-06-16 | 2016-12-07 | 亮源工业（以色列）有限公司 | Solar energy field layout and for wherein arrange, the system and method for maintenance and operation heliostat |
| CN106524529A (en) * | 2016-09-30 | 2017-03-22 | 浙江中控太阳能技术有限公司 | Heliostat mirror field used for tower solar thermal power plant |
| CN106951642A (en) * | 2017-03-22 | 2017-07-14 | 中国电建集团西北勘测设计研究院有限公司 | A kind of arrangement method of new biomimetic type solar energy heat mirror |
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2018
- 2018-08-22 CN CN201810962725.7A patent/CN109341108B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102753906A (en) * | 2009-12-01 | 2012-10-24 | 阿文戈亚太阳能新技术公司 | Method for distributing heliostats in tower plant |
| US20130087139A1 (en) * | 2010-06-16 | 2013-04-11 | Brightsource Industries (Israel) Ltd. | Solar field layout and systems and methods for arranging, maintaining, and operating heliostats therein |
| CN106196648A (en) * | 2010-06-16 | 2016-12-07 | 亮源工业（以色列）有限公司 | Solar energy field layout and for wherein arrange, the system and method for maintenance and operation heliostat |
| CN106524529A (en) * | 2016-09-30 | 2017-03-22 | 浙江中控太阳能技术有限公司 | Heliostat mirror field used for tower solar thermal power plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114096790A (en) * | 2019-05-09 | 2022-02-25 | 西多斯咨询和工程有限公司 | Asymmetric solar receiver |
| CN112963973A (en) * | 2021-03-22 | 2021-06-15 | 蒙映峰 | Construction method of photo-thermal power station |
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| CN109341108B (en) | 2020-05-29 |
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