CN103265054A - Reinforced heat storage salt gradient solar pond - Google Patents
Reinforced heat storage salt gradient solar pond Download PDFInfo
- Publication number
- CN103265054A CN103265054A CN2013101896958A CN201310189695A CN103265054A CN 103265054 A CN103265054 A CN 103265054A CN 2013101896958 A CN2013101896958 A CN 2013101896958A CN 201310189695 A CN201310189695 A CN 201310189695A CN 103265054 A CN103265054 A CN 103265054A
- Authority
- CN
- China
- Prior art keywords
- solar pond
- heat
- heat storage
- salt gradient
- brick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F24S10/10—Solar heat collectors using working fluids the working fluids forming pools or ponds
- F24S10/13—Salt-gradient ponds
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
The invention provides a reinforced heat storage salt gradient solar pond. The heating of saline water can be accelerated generally by enhancing the heat collection and slowing down the heat radiation. The enhanced heat storage is realized by arranging coal ash or gangue-based energy-storage heat storage bricks on the bottom of the solar pond. Each heat storage brick contains dark broken glass, coal slag or ore slag which is less than or equal to 50 percent of the gross mass of a base material. The inside of each heat storage brick can be in a honeycomb shape or a hollow structure, and the coal slag, ore slag or phase-changing energy storage material is filled inside each heat storage brick. By paving the heat storage bricks, the heat can be stored at daytime and radiated for the saline water at night, so that an effect for improving the stability of the solar pond can be realized. The reinforced heat storage salt gradient solar pond is simple, high in heat storage efficiency and convenient and rapid for utilizing the solar energy and has a promising application prospect.
Description
Technical field
The present invention relates to field of solar heat, specifically belong to a kind of salt gradient solar pond of utilizing fly ash base energy storage brick to strengthen accumulation of heat.
Background technology
Solar pond is a kind of device that utilizes brine concentration difference and density difference to carry out AUTOMATIC ZONING and accumulate solar thermal energy, the employing solar radiation is thermal source, utilization has the Chi Shui of salinity gradient as heat collector, the temperature of its mid-deep strata salt solution is also increasing gradually, temperature is the highest at the bottom of the pond, the heat energy that can utilize the bottom, pond to divide.The zone of solar pond accumulation of heat is pond bottom salt solution, and middle level and upper strata salt solution have then played certain insulation effect.But when using under or the environment that temperature is lower higher at height above sea level, the heat radiation of solar pond is one of problem that need arouse attention.If the salt solution gradient arranges improper or the pond at the bottom of thermal insulation layer lay imperfection, it is too fast that temperature alternately may cause the solar pond heat radiation round the clock, so the overall accumulation of heat speed of solar pond will be subjected to certain influence, actual end-use performance reduces.In the report of most solar pond so far, the heat capacity of solar pond maintains 60 ° of temperature levels about C, and bottom salt solution is warming up to top temperature and begins the time that steady running often needed for 1～2 week.The regenerator temperature of solar pond also has the successful case that rises to more than 90 ° of C, and in most cases these solar pond are subjected to the influence of concrete operational condition and envrionment temperature, and its insulation measure is good.
In general, the advantage of solar pond is to provide sustainedly and stably the thermal source of about 60 ° of C under the lower and unsettled prerequisite of sun power grade, but process is comparatively slow and that further heat up limited in one's ability.The effective way that promotes the solar pond heat capacity is to reform existing solar pond structural shape, and exploitation advantages of simplicity and high efficiency solar energy composite utilizes new device.
Summary of the invention
The object of the present invention is to provide a kind of salt gradient solar pond of strengthening accumulation of heat.
The salt gradient solar pond of reinforcement accumulation of heat provided by the invention is placed the above gitter brick of two rows in the solar pond bottom, the spacing between per two row's gitter bricks is 10-30 centimetre, and gitter brick is terrace with edge or cone shape; Gitter brick is that flyash or coal gangue are the vitrified brick of base-material.
Gitter brick can also contain glass slag, cinder or the slag of the dark color that is no more than base-material total mass 50%.
Gitter brick inside can be polynuclear plane.
Gitter brick can be hollow structure, inner cinder, slag or the phase-changing energy storage material loaded; Phase-changing energy storage material can be one or more in the common energy storage materials such as saltcake, ten water calcium chloride, calcium chloride hexahydrate, polyoxyethylene glycol and paraffin, or the mixture of saltpetre-SODIUMNITRATE, or the mixture of Sodium Fluoride-sodium-chlor.
Compared with prior art, advantage of the present invention and effect are:
(1) for common solar pond, will change to the structure that has fluctuating from two dimensional structure at the bottom of the pond, increased the surface-area that absorbs sun heat radiation, accelerated thermal-arrest speed;
(2) since gitter brick itself can accumulation of heat in the daytime, night to the bittern heat release, in fact the laying gitter brick has increased the heat transfer sheet area between brick body and the salt solution, after the temperature of solar pond reached desired value, gitter brick had played the effect that slows down the salt solution night cooling, improves solar pond stability.
Therefore, efficient height of the present invention, good heat insulating, the stability of operation is strong, has broad application prospects.
Description of drawings
Fig. 1 is the salt gradient solar pond synoptic diagram that the present invention strengthens accumulation of heat.
Wherein: the 1-solar pond; The 2-gitter brick.
Embodiment
Embodiment 1:
As shown in Figure 1, it is trapezoidal that the section of the salt gradient solar pond 1 of reinforcement accumulation of heat is isosceles, and bottom surface and upper surface are square, and its length of side is respectively 1m and 5m, and the pond that holds salt solution of dark 2m is covered with gitter brick 2 in solar pond 1 bottom; Every gitter brick 2 is the terrace with edge shape, base length of side 10cm, height 10cm; Spacing between two row's gitter bricks 2 is 10 centimetres; Gitter brick 2 contains the glass slag of the dark color of base-material total mass 50% for flyash is the vitrified brick of base-material.
The salt gradient solar pond of above-mentioned reinforcement accumulation of heat starts operation under the environment of 10.5 ° of C of February temperature on average, bottom salt solution reached the top temperature of 50 ° of C after 10 days, and ordinary salt gradient solar pond 14 day the accumulation of heat time more smooth than the bottom surface has shifted to an earlier date 4; The salt gradient solar pond bottom salt solution of strengthening accumulation of heat every night between 1.5 ° of C of cooling, cooling extent less than operation under equal conditions and and the ordinary salt gradient solar pond that compares of present embodiment every night between the temperature of 3.5 ° of C fall.
Embodiment 2: device and temperature condition are with embodiment 1, and difference is that gitter brick 2 is uncovered hollow structure, the dark cinder of inner filling.
The salt gradient solar pond of above-mentioned reinforcement accumulation of heat starts operation under the environment of 10.5 ° of C of February temperature on average, bottom salt solution reached the top temperature of 50 ° of C after 12 days, and ordinary salt gradient solar pond 14 day the accumulation of heat time more smooth than the bottom surface has shifted to an earlier date 2; The salt gradient solar pond bottom salt solution of strengthening accumulation of heat every night between 1.9 ° of C of cooling, cooling extent less than operation under equal conditions and and the ordinary salt gradient solar pond that compares of present embodiment every night between the temperature of 3.5 ° of C fall.
Embodiment 3: the device and temperature condition with embodiment 1, difference is that gitter brick 2 is hollow structures, in ten water calcium chloride are housed.
The salt gradient solar pond of above-mentioned reinforcement accumulation of heat starts operation under the environment of 10.5 ° of C of February temperature on average, bottom salt solution reached the top temperature of 45 ° of C after 12 days, and ordinary salt gradient solar pond 14 day the accumulation of heat time more smooth than the bottom surface has shifted to an earlier date 2; The salt gradient solar pond bottom salt solution of strengthening accumulation of heat every night between 1.2 ° of C of cooling, cooling extent less than operation under equal conditions and and the ordinary salt gradient solar pond that compares of present embodiment every night between the temperature of 3.5 ° of C fall.
Embodiment 4: device and temperature condition are with embodiment 1, and difference is that gitter brick 2 is polynuclear plane.
The salt gradient solar pond of above-mentioned reinforcement accumulation of heat starts operation under the environment of 10.5 ° of C of February temperature on average, bottom salt solution reached the top temperature of 50 ° of C after 12 days, and ordinary salt gradient solar pond 14 day the accumulation of heat time more smooth than the bottom surface has shifted to an earlier date 2; The salt gradient solar pond bottom salt solution of strengthening accumulation of heat every night between 2.2 ° of C of cooling, cooling extent less than operation under equal conditions and and the ordinary salt gradient solar pond that compares of present embodiment every night between the temperature of 3.5 ° of C fall.
Claims (5)
1. a salt gradient solar pond of strengthening accumulation of heat is characterized in that, places two row's above gitter bricks (2) in solar pond (1) bottom, and the spacing between per two row's gitter bricks is 10-30 centimetre, and gitter brick (2) is terrace with edge or cone shape; Gitter brick (2) is that flyash or coal gangue are the vitrified brick of base-material.
2. a kind of salt gradient solar pond of strengthening accumulation of heat as claimed in claim 1 is characterized in that described vitrified brick contains glass slag, cinder or the slag of the dark color that is no more than base-material total mass 50%.
3. a kind of salt gradient solar pond of strengthening accumulation of heat as claimed in claim 1 or 2 is characterized in that, described gitter brick (2) inside is polynuclear plane.
4. a kind of salt gradient solar pond of strengthening accumulation of heat as claimed in claim 1 or 2 is characterized in that described gitter brick (2) is hollow structure, inner cinder, slag or the phase-changing energy storage material loaded.
5. a kind of salt gradient solar pond of strengthening accumulation of heat as claimed in claim 1 or 2, it is characterized in that, described phase-changing energy storage material is one or more in saltcake, ten water calcium chloride, calcium chloride hexahydrate, polyoxyethylene glycol and the paraffin, or the mixture of saltpetre-SODIUMNITRATE, or the mixture of Sodium Fluoride-sodium-chlor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101896958A CN103265054A (en) | 2013-05-22 | 2013-05-22 | Reinforced heat storage salt gradient solar pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101896958A CN103265054A (en) | 2013-05-22 | 2013-05-22 | Reinforced heat storage salt gradient solar pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103265054A true CN103265054A (en) | 2013-08-28 |
Family
ID=49008734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101896958A Pending CN103265054A (en) | 2013-05-22 | 2013-05-22 | Reinforced heat storage salt gradient solar pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103265054A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792043A (en) * | 2015-03-31 | 2015-07-22 | 戚荣生 | Heat energy reserve pool capable of storing heat continuously |
| CN104819587A (en) * | 2015-03-31 | 2015-08-05 | 戚荣生 | Heat energy warehouse |
| CN104819586A (en) * | 2015-03-31 | 2015-08-05 | 戚荣生 | Energy-storage phase-change material box for heat energy warehouse |
| CN104845590A (en) * | 2015-03-31 | 2015-08-19 | 戚荣生 | Compound brine used in heat energy storage |
| CN105588345A (en) * | 2014-11-17 | 2016-05-18 | 河南理工大学 | Salt gradient solar pond technology for accumulating heat by using latent heat |
| CN104464480B (en) * | 2014-11-17 | 2016-09-07 | 河南理工大学 | A kind of experimental technique of analog solar heating salt gradient solar pond |
| CN108413471A (en) * | 2017-02-10 | 2018-08-17 | 陈有孝 | Energy-efficient Regenerative Type electric radiator |
| CN108624294A (en) * | 2018-06-08 | 2018-10-09 | 华北电力大学 | A kind of high temperature phase-change heat-storage material and preparation method based on gangue |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183096A (en) * | 2011-03-18 | 2011-09-14 | 上海电力学院 | Solar pond composite drying system |
| CN202131113U (en) * | 2011-08-01 | 2012-02-01 | 冯静 | Facility used for enlarging evaporating area and increasing salt extraction yield |
-
2013
- 2013-05-22 CN CN2013101896958A patent/CN103265054A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183096A (en) * | 2011-03-18 | 2011-09-14 | 上海电力学院 | Solar pond composite drying system |
| CN202131113U (en) * | 2011-08-01 | 2012-02-01 | 冯静 | Facility used for enlarging evaporating area and increasing salt extraction yield |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588345A (en) * | 2014-11-17 | 2016-05-18 | 河南理工大学 | Salt gradient solar pond technology for accumulating heat by using latent heat |
| CN104464480B (en) * | 2014-11-17 | 2016-09-07 | 河南理工大学 | A kind of experimental technique of analog solar heating salt gradient solar pond |
| CN104792043A (en) * | 2015-03-31 | 2015-07-22 | 戚荣生 | Heat energy reserve pool capable of storing heat continuously |
| CN104819587A (en) * | 2015-03-31 | 2015-08-05 | 戚荣生 | Heat energy warehouse |
| CN104819586A (en) * | 2015-03-31 | 2015-08-05 | 戚荣生 | Energy-storage phase-change material box for heat energy warehouse |
| CN104845590A (en) * | 2015-03-31 | 2015-08-19 | 戚荣生 | Compound brine used in heat energy storage |
| CN108413471A (en) * | 2017-02-10 | 2018-08-17 | 陈有孝 | Energy-efficient Regenerative Type electric radiator |
| CN108624294A (en) * | 2018-06-08 | 2018-10-09 | 华北电力大学 | A kind of high temperature phase-change heat-storage material and preparation method based on gangue |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103265054A (en) | Reinforced heat storage salt gradient solar pond | |
| Xu et al. | A review of available technologies for seasonal thermal energy storage | |
| CN102815727A (en) | Method for extracting lithium carbonate from carbonate brine | |
| CN104236129B (en) | The double-deck salt-free solar pond of cold, hot two-purpose and across season accumulation of energy cold and heat supply system | |
| Wu et al. | The application of an enhanced salinity-gradient solar pond with nucleation matrix in lithium extraction from Zabuye salt lake in Tibet | |
| CN102320627B (en) | Method for sunning slat and generating power by using solar energy and wind energy | |
| CN103075819A (en) | Composite porous medium salt-gradient solar pond | |
| CN105588345A (en) | Salt gradient solar pond technology for accumulating heat by using latent heat | |
| CN102464344B (en) | Device for evaporating brine and generating electricity by utilizing solar power and wind power | |
| CN1179885C (en) | Lithium carbonate crystal separating process from carbonate-type bittern by means of solar battery | |
| CN201024199Y (en) | Solar pool device for extracting lithium from brine | |
| Goutham et al. | Solar pond technology | |
| CN110352754A (en) | A kind of phase transition heat accumulation unit for greenhouse temperature control | |
| CN204494849U (en) | A kind of simple and easy solar pond | |
| Radwan et al. | Uses of sands in solar thermal technologies | |
| CN202095339U (en) | Honeycomb wall type greenhouse | |
| CN205245318U (en) | System for utilize nature body to store shakiness or dump energy and heat supply when striding | |
| CN202206779U (en) | Solar greenhouse capable of accumulating heat by utilizing water | |
| CN103595338A (en) | Photo-thermal integrated greenhouse gas electricity generation device | |
| CN202080900U (en) | Device for making salts and generating power with utilization of solar energy and wind energy | |
| CN113047105A (en) | Integrated anti-freezing and anti-expansion heat collecting device and roadbed thereof | |
| CN202993654U (en) | Solar pond absorption type refrigeration device with condensation system | |
| CN202746129U (en) | All-weather solar balanced power generation device with energy storage and peak and valley regulation functions | |
| US20220307729A1 (en) | Light-concentrating anti-frost anti-heave heat gathering device and subgrade thereof | |
| CN107125056A (en) | Heliogreenhouse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130828 |