CN107965932A - A kind of solar heat-preservation system - Google Patents
A kind of solar heat-preservation system Download PDFInfo
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- CN107965932A CN107965932A CN201711001926.2A CN201711001926A CN107965932A CN 107965932 A CN107965932 A CN 107965932A CN 201711001926 A CN201711001926 A CN 201711001926A CN 107965932 A CN107965932 A CN 107965932A
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- heat
- working medium
- accumulation
- storage device
- collection
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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 present invention relates to solar energy techniques field, more particularly to the solar energy system and method for a kind of solar energy heating and heat accumulation.System includes light and heat collection system and the accumulation of heat circulatory system, wherein the light and heat collection system includes pylon, multiple light gathering reflector heliostats and multiple plane mirrors；The accumulation of heat circulatory system includes driving device, collection heat exchanger, room temperature working medium storage device, high temperature refrigerant storage device and accumulation of heat working medium.The present invention can be provided out stably and controllable thermal energy supply by producing steady temperature heat source to solar energy heating, have the characteristics that temperature it is adjustable it is controllable, output is stable, photo-thermal is efficient and easy to apply.
Description
Technical field
The present invention relates to solar energy techniques field, more particularly to the solar energy system of a kind of solar energy heating and heat accumulation
And method.
Background technology
China's solar thermal utilization industry passes through the development of many decades, achieves the achievement to attract people's attention, forms actively
Orderly and sustainable development situation.Different from photovoltaic, the development of photo-thermal rarely has that the ring of light is also rare free and easy, and some is solid foot
Step.By the high speed development of nearly 10 years, for the annual value of production of photo-thermal up to hundred billion yuan, the annual output of solar thermal collector exceeded forty-two million
Square metre, global more than 70% is accounted for, the installation ownership of solar energy accounts for the world more than 80% up to 1.45 hundred million square metres.
At the same time, the production capacity of solar energy optical-thermal 95% is to digest at home, and energy saving contribution rate is increasingly prominent.But in worldwide sluggish economy
Overall situation under, solar thermal utilization industry is also faced with the circumstances that speedup slows down.Solar energy optical-thermal is undergoing an industry
Change, significant signal is that traditional Industrial Boundary is being broken, solar energy leading enterprise to thermal energy, thermoelectricity and
The compound supplier of multiple-energy-source makes the transition and opens up boundary." big photo-thermal " is direction, and in corporate strategy aspect, current task is with solar energy
Heat is core, passes through technological innovation and compound, the transition from the single energy to compound energy, from single hot water of multipotency source technology
Expanded to the high temperature field of thermal energy, thermoelectricity.Meanwhile multiple-energy-source Application of composite technology and energy storage technology are critically important
One step.
Solar heat-collection and heat-accumulation is the main path of Solar Energy Heat Utilization System, and solar thermal collector absorbs solar radiation
Light, produces very big thermal energy, so as to provide endlessly power.Heat-collection and heat-accumulation skill used in traditional solar energy hot systems
Art is similar, generally carries out photo-thermal thermal-arrest using heat collector, heats the heat-conducting work medium in heat collector；Cryogenic system is generally made using water
For heat-conducting work medium, medium temperature system generally uses conduction oil, and high-temperature systems then generally use fuse salt.The heat utilization of middle cryogenic system
It is less efficient, and energy density is relatively low, is not easy Mass storage application；And high-temperature systems can then face fuse salt frozen plug pipe
The problems such as road.
The content of the invention
(1) technical problems to be solved
The purpose that the present invention wants is to provide a kind of solar heat-preservation system and method, solves existing solar energy optical-thermal thermal-arrest and stores
Existing solar thermal utilization efficiency is low when hot, should not store, fuse salt solidifies and applies the problems such as inconvenient.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of solar heat-preservation system, including at least light and heat collection
System and the accumulation of heat circulatory system.
Wherein described light and heat collection system includes pylon, multiple light gathering reflector heliostats and multiple plane mirrors.
The accumulation of heat circulatory system includes driving device, collection heat exchanger, room temperature working medium storage device, high temperature refrigerant storage
Device and accumulation of heat working medium.
The light and heat collection system includes more light gathering reflector heliostats, and the light gathering reflector heliostat spread configuration is in branch
On support structure.
Further, the light gathering reflector heliostat is equipped with automatic sun-tracing control device and rotating device.
Further, every light gathering reflector heliostat includes multiple concave mirrors, and the concave mirror is minute surface
The adjustable concave mirror of radian.
The beam condensing unit includes more plane mirrors, and the plane mirror lifting is arranged on 10~50 meters of high towers
Below frame.
Further, every plane mirror is installed on the pylon by tumbler.
Fuse salt working medium is packaged with the collection heat exchanger, and it is logical with heat exchange with passing through for affiliated accumulation of heat working medium
Road.
Further, the fuse salt is preferably KNO3And NaNO3Salt-mixture.
Further, the collection heat exchanger is installed on immediately below the plane mirror pylon.
The high temperature refrigerant storage device is arranged on the collection heat exchanger downstream, high temperature driven device upstream；The storage
Hot working fluid enters the high temperature refrigerant storage device after the collection heat exchanger heating.
Further, the preferred running parameter of the high temperature refrigerant storage device is 380 DEG C to 400 DEG C, 3MPa.
The high temperature driven device is arranged on the high temperature refrigerant storage device downstream, the outer heat load upstream of system；It is described
High temperature driven device drives the accumulation of heat working medium in the high temperature refrigerant storage device to heat load heat supply outside system.
The room temperature working medium storage device is arranged on the outer heat load downstream of system, the room temperature driving device upstream；Through being
The accumulation of heat working medium after the outer heat load absorbing and cooling temperature of system enters room temperature working medium storage device.
Further, the preferred running parameter of the room temperature working medium storage device is 20 DEG C to 80 DEG C, 3MPa.
The accumulation of heat circulatory system controls temperature of the accumulation of heat working medium after the collection heat exchanger there are control system
Steadily.
A kind of solar heat-preservation system, system is by the accumulation of heat working medium of high temperature to heat load heat supply outside system；
The heating form can directly provide the high-temperature heat accumulation working fluid, can also be passed through using the high-temperature heat accumulation working medium
Heat exchanger outside system to providing heat.
Further, the accumulation of heat working medium is preferably conduction oil.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has the following advantages that：
A kind of solar heat-preservation system provided by the invention, the sun is formed using light and heat collection system, the accumulation of heat circulatory system
Energy opto-thermal system, by accurate temperature controlling and technological process, realizes solar energy optical-thermal from storage is enriched to again to the efficiency light utilized
Hot application approach, is conducive to the popularization and application of photothermal technique.
A kind of solar heat-preservation system provided by the invention, using widely applied tower solar energy light gathering and heat collecting system
Thermal-arrest central temperature, can be promoted to more than 800 DEG C by system.
A kind of solar heat-preservation system provided by the invention, the collection heat exchanger for the integral type that exchanged heat using fuse salt thermal-arrest,
Accumulation of heat working medium is heated while efficient heat-collecting is realized, fuse salt is avoided and flows existing frozen plug in the duct
Problem.
A kind of solar heat-preservation system provided by the invention, using the accumulation of heat working medium of constant temperature to heat load heat supply outside system,
Heating power is stably and controllable.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of solar heat-preservation system of the embodiment of the present invention；
In figure：1：Light gathering reflector heliostat；2：Plane mirror；3：Collect heat exchanger；4：High temperature refrigerant storage device；5：
High temperature driven device；6：Room temperature working medium storage device；7：Room temperature driving device.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained on the premise of creative work is not made, belong to the scope of protection of the invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of solar heat-preservation system, including light and heat collection system, accumulation of heat are followed
Loop system.
The light and heat collection system includes pylon, multiple light gathering reflector heliostats 1 and multiple plane mirrors 2, wherein
The light gathering reflector heliostat 1 is separately positioned on around the plane mirror 2 or to be provided entirely in plane mirror 2 a certain
Or several sides, the plane mirror 2 are arranged on the tower top；The light gathering reflector heliostat 1 and the plane
2 quantity of speculum is identical, and each light gathering reflector heliostat 1 is corresponded with each plane mirror 2；
The accumulation of heat circulatory system includes collection heat exchanger 3, high temperature refrigerant storage device 4, high temperature driven device 5, room temperature
Working medium storage device 6 and room temperature driving device 7, and accumulation of heat working medium；Tower of the collection heat exchanger in the plane mirror
Immediately below frame；The room temperature working medium storage device 6, room temperature driving device 7, collection heat exchanger 3,4 and of high temperature refrigerant storage device
High temperature driven device 5 is sequentially connected；The high temperature driven device 5 connects with the room temperature working medium storage device 6 by using thermic load
Connect；The accumulation of heat working medium is present in the room temperature working medium storage device 6, room temperature driving device 7, collection heat exchanger 3, high temperature work
In the circuit that matter storage device 4 and high temperature driven device 5 are formed.
The light and heat collection system includes more light gathering reflector heliostats 1,1 spread configuration of light gathering reflector heliostat in
In supporting structure.
Further, the light gathering reflector heliostat 1 is equipped with automatic sun-tracing control device and rotating device.
Further, every light gathering reflector heliostat 1 includes multiple concave mirrors, and the concave mirror is minute surface
The adjustable concave mirror of radian.
The beam condensing unit includes more plane mirrors 2, and the plane mirror lifting is arranged on 10~50 meters high
Below pylon.
Further, every plane mirror 2 is installed on the pylon by tumbler.
Fuse salt working medium is packaged with the collection heat exchanger 3, and it is logical with heat exchange with passing through for affiliated accumulation of heat working medium
Road.
Further, the fuse salt is preferably KNO3And NaNO3Salt-mixture.
Further, the collection heat exchanger 3 is installed on immediately below 2 pylon of plane mirror.
The high temperature refrigerant storage device 4 is arranged on 3 downstream of the collection heat exchanger, 5 upstream of high temperature driven device；It is described
Accumulation of heat working medium enters the high temperature refrigerant storage device 4 after the collection heat exchanger 3 heats.
Further, the preferred running parameter of the high temperature refrigerant storage device 4 is 380 DEG C to 400 DEG C, 3MPa.
The high temperature driven device 5 is arranged on 4 downstream of high temperature refrigerant storage device, the outer heat load upstream of system；Institute
State high temperature driven device and drive the accumulation of heat working medium in the 5 high temperature refrigerant storage devices 4 to heat load heat supply outside system.
The room temperature working medium storage device 6 is arranged on the outer heat load downstream of system, 7 upstream of room temperature driving device；Through
The accumulation of heat working medium after the outer heat load absorbing and cooling temperature of system enters room temperature working medium storage device 6.
Further, the preferred running parameter of the room temperature working medium storage device 6 is 20 DEG C to 80 DEG C, 3MPa.
The room temperature driving device 7 is arranged on the downstream of the room temperature working medium storage device 6, the collection heat exchanger 3
Upstream；The room temperature driving device 7 drives the accumulation of heat working medium in the room temperature working medium storage device 6 to be changed into the thermal-arrest
The hot heat absorption of device 3 heating.
The accumulation of heat circulatory system controls temperature of the accumulation of heat working medium after the collection heat exchanger 3 there are control system
Degree is steady.
A kind of solar heat-preservation system is by the accumulation of heat working medium of high temperature to heat load heat supply outside system；The confession
Hot form can directly provide the high-temperature heat accumulation working fluid, can also pass through heat exchanger using the high-temperature heat accumulation working medium
To providing heat outside system.
Further, the accumulation of heat working medium is preferably conduction oil.
In conclusion a kind of solar heat-preservation system provided by the invention, using light and heat collection system, the accumulation of heat circulatory system
Solar energy hot systems are formed, by accurate temperature controlling and technological process, realize solar energy optical-thermal from storage is enriched to again to utilization
Efficient photo-thermal application approach, be conducive to the popularization and application of photothermal technique.Using widely applied tower Salar light-gathering collection
Thermal-arrest central temperature, can be promoted to more than 800 DEG C by hot systems.Exchanged heat using the thermal-arrest of fuse salt thermal-arrest heat exchange integral type
Device, heats accumulation of heat working medium while efficient heat-collecting is realized, avoids fuse salt and flows existing solidification in the duct
Blockage problem.It is stably and controllable to heat load heat supply, heating power outside system using the accumulation of heat working medium of constant temperature.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (18)
- A kind of 1. solar heat-preservation system, it is characterised in that：Including at least light and heat collection system and the accumulation of heat circulatory system；The light and heat collection system includes pylon, multiple light gathering reflector heliostats and multiple plane mirrors, wherein described poly- Light reflection heliostat is separately positioned on around the pylon or is provided entirely in that the pylon is a certain or several sides, described Plane mirror is arranged on the tower top；The light gathering reflector heliostat is identical with the plane mirror quantity, and respectively The light gathering reflector heliostat is corresponded with each plane mirror；Institute's accumulation of heat circulatory system include driving device, collection heat exchanger, room temperature working medium storage device, high temperature refrigerant storage device and Accumulation of heat working medium；The collection heat exchanger is immediately below the pylon of the plane mirror；The room temperature working medium storage device, room temperature Driving device, collection heat exchanger, high temperature refrigerant storage device and high temperature driven device are sequentially connected；The high temperature driven device with The room temperature working medium storage device is connected by using thermic load；The accumulation of heat working medium, which is present in store in the room temperature working medium, to be filled Put, in the circuit that driving device, collection heat exchanger and high temperature refrigerant storage device are formed.
- A kind of 2. solar heat-preservation system according to claim 1, it is characterised in that：The light and heat collection system includes more Platform light gathering reflector heliostat, the light gathering reflector heliostat spread configuration is in supporting structure.
- A kind of 3. solar heat-preservation system according to claim 2, it is characterised in that：The light gathering reflector heliostat is all provided with There are automatic sun-tracing control device and rotating device.
- A kind of 4. solar heat-preservation system according to claim 2, it is characterised in that：Every light gathering reflector heliostat Including multiple concave mirrors, the concave mirror is the adjustable concave mirror of minute surface radian.
- A kind of 5. solar heat-preservation system according to claim 1, it is characterised in that：The beam condensing unit, which includes more, puts down Face speculum, the plane mirror lifting are arranged on below 10~50 meters high of pylon.
- A kind of 6. solar heat-preservation system according to claim 5, it is characterised in that：Every plane mirror is logical Tumbler is crossed on the pylon.
- A kind of 7. solar heat-preservation system according to claim 1, it is characterised in that：It is packaged with the collection heat exchanger Fuse salt working medium, and have and pass through the passage with heat exchange for affiliated accumulation of heat working medium.
- A kind of 8. solar heat-preservation system according to claim 7, it is characterised in that：The collection heat exchanger is installed on institute State immediately below plane mirror pylon.
- A kind of 9. solar heat-preservation system according to claim 1, it is characterised in that：The high temperature refrigerant storage device is set Put in the collection heat exchanger downstream, high temperature driven device upstream；The accumulation of heat working medium is laggard through the collection heat exchanger heating Enter the high temperature refrigerant storage device.
- A kind of 10. solar heat-preservation system according to claim 9, it is characterised in that：The high temperature refrigerant storage device Preferred running parameter be 380 DEG C to 400 DEG C, 3MPa.
- A kind of 11. solar heat-preservation system according to claim 1, it is characterised in that：The high temperature driven device is set In the high temperature refrigerant storage device downstream, the outer heat load upstream of system；The high temperature driven device drives the high temperature refrigerant The accumulation of heat working medium in storage device is to heat load heat supply outside system.
- A kind of 12. solar heat-preservation system according to claim 1, it is characterised in that：The room temperature working medium storage device It is arranged on the outer heat load downstream of system, the room temperature driving device upstream；The storage after heat load absorbing and cooling temperature outside system Hot working fluid enters room temperature working medium storage device.
- A kind of 13. solar heat-preservation system according to claim 12, it is characterised in that：The room temperature working medium storage device Preferred running parameter be 20 DEG C to 80 DEG C, 3MPa.
- A kind of 14. solar heat-preservation system according to claim 1, it is characterised in that：The room temperature driving device is set In the downstream of the room temperature working medium storage device, the upstream of the collection heat exchanger；The room temperature driving device driving is described often The accumulation of heat working medium in warm working medium storage device enters the collection heat exchanger heat absorption heating.
- A kind of 15. solar heat-preservation system according to claim 7 to 14, it is characterised in that：The accumulation of heat circulatory system There are control system, controls temperature plateau of the accumulation of heat working medium after the collection heat exchanger.
- A kind of 16. solar heat-preservation system, it is characterised in that：The system is negative to heat outside system by the accumulation of heat working medium of high temperature Carry heat supply；The heating form can directly provide the high-temperature heat accumulation working fluid, can also use the high-temperature heat accumulation Working medium is by heat exchanger to providing heat outside system.
- A kind of 17. solar heat-preservation system according to claim 7 to 16, it is characterised in that：The accumulation of heat working medium is preferred For conduction oil.
- 18. the solar energy system according to claim 7 using two-step method recycling carbon fiber, it is characterised in that：It is described molten It is preferably KNO to melt salt3And NaNO3Salt-mixture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711001926.2A CN107965932A (en) | 2017-10-24 | 2017-10-24 | A kind of solar heat-preservation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711001926.2A CN107965932A (en) | 2017-10-24 | 2017-10-24 | A kind of solar heat-preservation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444117A (en) * | 2018-05-17 | 2018-08-24 | 山东建筑大学 | A kind of device and method of solar energy hot-cast socket and the composite heat supply of accumulation of energy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206191946U (en) * | 2015-10-30 | 2017-05-24 | 百吉瑞（天津）新能源有限公司 | Solar energy step heating high temperature solar collecting system based on fused salt heat transfer heat accumulation |
| CN106832392A (en) * | 2016-12-29 | 2017-06-13 | 青海大学 | A kind of use two-step method reclaims the solar energy system and method for carbon fiber |
-
2017
- 2017-10-24 CN CN201711001926.2A patent/CN107965932A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206191946U (en) * | 2015-10-30 | 2017-05-24 | 百吉瑞（天津）新能源有限公司 | Solar energy step heating high temperature solar collecting system based on fused salt heat transfer heat accumulation |
| CN106832392A (en) * | 2016-12-29 | 2017-06-13 | 青海大学 | A kind of use two-step method reclaims the solar energy system and method for carbon fiber |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444117A (en) * | 2018-05-17 | 2018-08-24 | 山东建筑大学 | A kind of device and method of solar energy hot-cast socket and the composite heat supply of accumulation of energy |
| CN108444117B (en) * | 2018-05-17 | 2023-10-13 | 山东建筑大学 | Solar photo-thermal conversion and energy storage composite heating device and method |
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