CN105758014B - A kind of heat dump of linear Fresnel collecting system - Google Patents
A kind of heat dump of linear Fresnel collecting system Download PDFInfo
- Publication number
- CN105758014B CN105758014B CN201610272738.2A CN201610272738A CN105758014B CN 105758014 B CN105758014 B CN 105758014B CN 201610272738 A CN201610272738 A CN 201610272738A CN 105758014 B CN105758014 B CN 105758014B
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- CN
- China
- Prior art keywords
- column
- thermal
- reflection mirror
- heat dump
- secondary reflection
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
-
- 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
-
- 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
Abstract
The invention discloses a kind of heat dumps of linear Fresnel collecting system, including thermal-collecting tube, secondary reflection mirror and the column for supporting heat dump, the thermal-collecting tube is fixed on the lower beam being connected with column by strut, and spring steel plate is additionally provided between strut and lower beam；The secondary reflection mirror is connected with multiple vertical plates respectively, and vertical plate is connected with the upper beam being fixed on column, or is connected with the frame being fixed between column；Secondary reflection mirror of the present invention with it is relatively independent in thermal-collecting tube structure, structure is simple, installs and is easily serviced；The supporting way of thermal-collecting tube is simple and reliable, and thermal-collecting tube can be effectively ensured will not be impaired because of expanded by heating；Secondary reflection mirror and thermal-collecting tube are all mounted on column, on the basis of column, are capable of the accurate of effective guarantee relative position, guarantee that secondary reflection mirror focuses on radiation on thermal-collecting tube.
Description
Technical field
The invention belongs to solar light-heat power-generation technical fields, are related to a kind of heat dump of linear Fresnel collecting system.
Background technique
Solar energy thermal-power-generating technology is to get up solar energy collecting to be converted into thermal energy by condenser, and it is high then to generate high temperature
Press steam drive steam turbine power generation.Linear Fresnel formula Salar light-gathering hot generation technology is one kind of current solar energy thermal-power-generating
Common form, the secondary mirror field being made up of multi-panel linear reflective mirror by sunlight at linear hot spot, then using connecing
Device is received, the high temperature that illumination generates is absorbed by heat-conducting fluid and is transmitted to heat exchanger.The heat of heat-conducting fluid in heat exchanger
It is used to heat water and generate vapor, and then utilize the acting power generation of vapor driving steam turbine.
In entire linear Fresnel collecting system, heat dump is responsible for absorbing the solar radiation of secondary mirror field reflection, will collect
Thermal medium is heated to high temperature, is very crucial component.The energy absorption efficiency of heat dump is directly related to final luminous energy to electric energy
Transformation efficiency.Due in solar energy thermal-power-generating technology for focusing ratio requirement and receiver limited width, linear phenanthrene alunite
In ear technology, using relatively narrow reflection mirror array and to reflecting mirror do bending process reduce reflecting mirror be irradiated on heat dump
Spot width, while secondary reflection mirror being installed, for the radiation secondary focusing for being irradiated to heat dump entrance, improving focusing ratio will
Collection thermal medium is heated to higher temperature.
Therefore linear Fresnel collecting system heat dump will mainly have secondary reflection mirror and thermal-collecting tube, and thermal-collecting tube is at runtime
It can be heated to very high temperature, and secondary reflection mirror and frame structure temperature be not high, under room temperature to running temperature, frame knot
Structure and secondary reflection mirror and the swell increment of thermal-collecting tube have very big difference, this requires processing in structure, avoid thermal-collecting tube
Because expanding limited bring adverse effect.
Existing solution first is that using rail structure, thermal-collecting tube suspention is got up and is avoided and frame other positions
Contact.The shortcomings that this mode is that structure is complicated, difficult to install, replaces thermal-collecting tube and frame is also highly difficult.
Summary of the invention
To solve the problems, such as existing linear Fresnel heat dump, structure is complicated, installation and difficult in maintenance, the present invention provides
A kind of heat dump of linear Fresnel collecting system, structure is simple, installs and is easily serviced, being capable of each portion of effective guarantee
Part relative position it is accurate.
The present invention is to be achieved through the following technical solutions:
A kind of heat dump of linear Fresnel collecting system, including the vertical of thermal-collecting tube, secondary reflection mirror and support heat dump
Column, the thermal-collecting tube are fixed on the lower beam being connected with column by strut, and bullet is additionally provided between strut and lower beam
Spring steel disc；The secondary reflection mirror is connected with multiple vertical plates respectively, and vertical plate is connected with the upper beam being fixed on column,
Or it is connected with the frame being fixed between column.
The two sides of the frame are equipped with column and difference is coupled, and column is arranged in pairs and along heat dump length
Direction spaced set, upper beam, lower beam are connect with column to vertical respectively.
The upper beam is connected with vertical plate in vertical direction, is connected in horizontal direction with frame, vertical plate and vertical
Column is parallel.
The vertical plate is arranged along heat dump equal spacing in length direction, and its spacing is the 0.5~2 of secondary reflection mirror height
Times, vertical plate is connected to the lower section of upper beam or frame.
The secondary reflection mirror is connected by connector with vertical plate, and one end of connector is Nian Jie with secondary reflection mirror,
The other end is contained in the sliding groove opened up on vertical plate, and connector can slide in sliding groove.
One end of the connector is equipped with bonding plane, Nian Jie with secondary reflection mirror by bonding agent, is contained in sliding groove
The other end and bonding plane it is perpendicular.
The connector is angle steel or class angle iron connecting piece, through-hole is offered on connector, by matching with through-hole
Bolt connection vertical plate on.
The strut includes the support rod for being separately positioned on thermal-collecting tube two sides, and auxiliary connecting rod is equipped between support rod,
Spring steel plate between strut and lower beam provides the space expanded after thermal-collecting tube is heated.
Compared with prior art, the invention has the following beneficial technical effects:
In the heat dump of linear Fresnel collecting system provided by the invention, secondary reflection mirror and thermal-collecting tube structure relatively solely
Vertical, secondary reflection mirror is fixed by vertical plate, upper beam, and thermal-collecting tube is fixed by strut, lower beam, support
Power one comes from above one from below, avoid it is excessive between the two tangle, overall structure is simple, and installation and maintenance are compared
It is convenient.
The heat dump of linear Fresnel collecting system provided by the invention, the supporting way of thermal-collecting tube is simple and reliable, strut
Spring steel plate is additionally provided between lower beam, to provide the space expanded after thermal-collecting tube is heated, thermal-collecting tube can be effectively ensured will not
Because expanded by heating is impaired；And secondary reflection mirror passes through the connection of connector and vertical plate, allows connector to slide, ensure that secondary counter
Mirror expanded by heating deformation space is penetrated, the reliability of the installation of secondary reflection mirror is improved, guarantees relatively good spotlight effect.
The heat dump of linear Fresnel collecting system provided by the invention, secondary reflection mirror and thermal-collecting tube are all mounted on column
On, on the basis of column, it is capable of the accurate of effective guarantee relative position, guarantees that radiation is focused on thermal-collecting tube by secondary reflection mirror
On.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of linear Fresnel heat collecting field heat dump of the present invention.
Fig. 2 is the attachment structure schematic diagram of secondary reflection mirror in heat dump of the present invention.
In figure, 1. thermal-collecting tubes, 2. secondary reflection mirrors, 3. columns, 4. struts, 5. spring steel plates, 6. lower beams are horizontal on 7.
Beam, 8. frames, 9. vertical plates, 10. connectors, 11. bonding agents.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Referring to Fig. 1, Fig. 2, a kind of heat dump of linear Fresnel collecting system, including thermal-collecting tube 1,2 and of secondary reflection mirror
The column 3 of heat dump is supported, the thermal-collecting tube 1 is fixed on the lower beam 6 being connected with column 3 by strut 4, strut 4
Spring steel plate 5 is additionally provided between lower beam 6；The secondary reflection mirror 2 is connected with multiple vertical plates 9 respectively, vertical plate 9 and solid
The upper beam 7 being scheduled on column 3 is connected, or is connected with the frame 8 being fixed between column 3.
Specifically, the two sides of the frame 8 are equipped with column 3 and difference is coupled, column 3 is arranged in pairs and edge
The setting of heat dump equal spacing in length direction, upper beam 7, lower beam 6 are connect with column to vertical respectively.
The upper beam 7 is connected with vertical plate 9 in vertical direction, is connected in horizontal direction with frame 8, vertical plate 9
It is parallel with column 3.
Specifically, the vertical plate 9 is arranged along heat dump equal spacing in length direction, its spacing is 2 height of secondary reflection mirror
0.5~2 times, the spacing that is preferably close with 2 height of secondary reflection mirror setting, vertical plate 9 is connected to upper beam 7 or frame 8
Lower section.
The secondary reflection mirror 2 is connected by connector 10 with vertical plate 9, one end of connector 10 and secondary reflection mirror
2 bondings, the other end are contained in the sliding groove opened up on vertical plate 9, and connector 10 can slide in sliding groove.
One end of the connector 10 is equipped with bonding plane, Nian Jie with secondary reflection mirror 2 by bonding agent 11, is contained in cunning
The other end and bonding plane of dynamic slot are perpendicular.
The connector 10 is angle steel or class angle iron connecting piece, offers through-hole on connector 10, by with through-hole phase
It is matched to be bolted on vertical plate 9.
Specifically, referring to fig. 2, secondary reflection mirror 2 and vertical plate 9 are connected, connector 10 by the connector 10 of similar angle steel
One side and secondary reflection mirror 2 between it is Nian Jie with bonding agent 11, be provided with slot on vertical plate 9, the another side of receiving connector 10 passes through
Welding or bolt reinforce connection.
The strut 4 includes the support rod for being separately positioned on 1 two sides of thermal-collecting tube, and auxiliary connection is equipped between support rod
Bar, the spring steel plate 5 between strut 4 and lower beam 6 provide the space expanded after thermal-collecting tube is heated.
In the heat dump of linear Fresnel collecting system provided by the invention, secondary reflection mirror and thermal-collecting tube structure relatively solely
Vertical, structure is simple, installs and is easily serviced.The supporting way of thermal-collecting tube is simple and reliable, and thermal-collecting tube can be effectively ensured will not
Because expanded by heating is impaired.Secondary reflection mirror and thermal-collecting tube are all mounted on column, on the basis of column, can effective guarantee it is opposite
Position it is accurate, guarantee secondary reflection mirror radiation is focused on thermal-collecting tube.
Example given above is to realize the present invention preferably example, and the present invention is not limited to the above embodiments.This field
Technical staff's technical solution according to the present invention technical characteristic any nonessential addition, the replacement made, belong to this
The protection scope of invention.
Claims (7)
1. a kind of heat dump of linear Fresnel collecting system, which is characterized in that including thermal-collecting tube (1), secondary reflection mirror (2) and
The column (3) of heat dump is supported, the thermal-collecting tube (1) is fixed on the lower beam being connected with column (3) by strut (4)
(6) on, spring steel plate (5) are additionally provided between strut (4) and lower beam (6)；The secondary reflection mirror (2) is stood with multiple respectively
Plate (9) is connected, and vertical plate (9) is connected with the upper beam (7) being fixed on column (3), or be fixed between column (3)
Frame (8) is connected；The two sides of the frame (8) are equipped with column (3) and difference is coupled, and column (3) is set in pairs
It sets and is arranged along heat dump equal spacing in length direction, upper beam (7), lower beam (6) are connect with column to vertical respectively.
2. the heat dump of linear Fresnel collecting system as described in claim 1, which is characterized in that the upper beam (7)
It is connected in vertical direction with vertical plate (9), is connected in horizontal direction with frame (8), vertical plate (9) is parallel with column (3).
3. the heat dump of linear Fresnel collecting system as described in claim 1, which is characterized in that described vertical plate (9) edge
The setting of heat dump equal spacing in length direction, its spacing are 0.5~2 times of secondary reflection mirror (2) height, and vertical plate (9) is connected to
The lower section of crossbeam (7) or frame (8).
4. the heat dump of linear Fresnel collecting system as described in claim 1, which is characterized in that the secondary reflection mirror
(2) it is connected by connector (10) with vertical plate (9), one end of connector (10) is Nian Jie with secondary reflection mirror (2), and the other end holds
It is contained in the sliding groove opened up on vertical plate (9), connector (10) can slide in sliding groove.
5. the heat dump of linear Fresnel collecting system as claimed in claim 4, which is characterized in that the connector (10)
One end be equipped with bonding plane, it is Nian Jie with secondary reflection mirror (2) by bonding agent (11), be contained in the other end of sliding groove with it is bonding
Face is perpendicular.
6. the heat dump of linear Fresnel collecting system as claimed in claim 4, which is characterized in that the connector (10)
For angle steel or class angle iron connecting piece, connector offers through-hole on (10), by connecting vertical plate with the bolt that through-hole matches
(9) on.
7. the heat dump of linear Fresnel collecting system as described in claim 1 or 4, which is characterized in that the strut (4)
Support rod including being separately positioned on thermal-collecting tube (1) two sides is equipped with auxiliary connecting rod, strut (4) and lower beam between support rod
(6) spring steel plate (5) between provides the space expanded after thermal-collecting tube is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272738.2A CN105758014B (en) | 2016-04-27 | 2016-04-27 | A kind of heat dump of linear Fresnel collecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610272738.2A CN105758014B (en) | 2016-04-27 | 2016-04-27 | A kind of heat dump of linear Fresnel collecting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105758014A CN105758014A (en) | 2016-07-13 |
| CN105758014B true CN105758014B (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610272738.2A Active CN105758014B (en) | 2016-04-27 | 2016-04-27 | A kind of heat dump of linear Fresnel collecting system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016779B (en) * | 2016-07-25 | 2018-03-06 | 中国华能集团清洁能源技术研究院有限公司 | A kind of linear Fresnel heat dump structure of secondary condensation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660845A (en) * | 2009-09-07 | 2010-03-03 | 东南大学 | Secondary reflection light gathering and heat collecting device with compound curved surface |
| CN102798230A (en) * | 2012-08-14 | 2012-11-28 | 中国华能集团清洁能源技术研究院有限公司 | Novel CPC secondary reflection device and fixing device thereof |
| CN203286779U (en) * | 2013-05-28 | 2013-11-13 | 兰州大成科技股份有限公司 | Road space three-dimensional linear Fresnel type solar condensation device |
| CN205641600U (en) * | 2016-04-27 | 2016-10-12 | 中国华能集团清洁能源技术研究院有限公司 | Linear fei nieer solar collecting system's heat absorber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783290B (en) * | 2016-04-26 | 2017-12-01 | 中国华能集团清洁能源技术研究院有限公司 | A kind of linear Fresnel collecting system heat dump of easy cleaning |
-
2016
- 2016-04-27 CN CN201610272738.2A patent/CN105758014B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660845A (en) * | 2009-09-07 | 2010-03-03 | 东南大学 | Secondary reflection light gathering and heat collecting device with compound curved surface |
| CN102798230A (en) * | 2012-08-14 | 2012-11-28 | 中国华能集团清洁能源技术研究院有限公司 | Novel CPC secondary reflection device and fixing device thereof |
| CN203286779U (en) * | 2013-05-28 | 2013-11-13 | 兰州大成科技股份有限公司 | Road space three-dimensional linear Fresnel type solar condensation device |
| CN205641600U (en) * | 2016-04-27 | 2016-10-12 | 中国华能集团清洁能源技术研究院有限公司 | Linear fei nieer solar collecting system's heat absorber |
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| Publication number | Publication date |
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| CN105758014A (en) | 2016-07-13 |
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