CN103512251A - Technology and device for melt and condensation prevention of solar photo-thermal power generation phase-change energy-storage medium - Google Patents
Technology and device for melt and condensation prevention of solar photo-thermal power generation phase-change energy-storage medium Download PDFInfo
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- CN103512251A CN103512251A CN201310455600.2A CN201310455600A CN103512251A CN 103512251 A CN103512251 A CN 103512251A CN 201310455600 A CN201310455600 A CN 201310455600A CN 103512251 A CN103512251 A CN 103512251A
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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
Abstract
The invention relates to a technology and device for efficient melt and condensation prevention of a solar photo-thermal power generation phase-change energy-storage medium. When the solar photo-thermal power generation phase-change energy-storage medium is melted for the first time, high-temperature heat energy produced by a heating system at the bottom of a tank is directly transmitted to the solar photo-thermal power generation phase-change energy-storage medium in the tank to melt the solar photo-thermal power generation phase-change energy-storage medium in a heat-storage tank body, and when temperature layering, condensation and solidification of the solar photo-thermal power generation phase-change energy-storage medium happen, the temperature of heat-storage phase-change materials of the heat-storage tank body can be even through convection or mechanical flow mixing, and the problems of temperature layering, condensation and solidification of phase-change energy-storage materials in the heat-storage tank body can be solved. The technology and device for efficient melt and condensation prevention of the solar photo-thermal power generation phase-change energy-storage medium is clean, simple, efficient and easy to maintain, and the purposes of melt and condensation prevention of the solar photo-thermal power generation phase-change energy-storage medium are achieved.
Description
Technical field
The present invention relates to solar light-heat power-generation energy storage technology field, be specifically related to the efficient thawing of a kind of solar light-heat power-generation phase-change and energy-storage medium and anti-condensation technology and device.
Background technology
In solar light-heat power-generation energy-storage system, must have heat storage medium to carry out high temperature heat transfer, heat storage medium is generally fuse salt or other phase-change material, and these heat storage mediums all need to melt before use, melt and reach uniform temperature after could in system, move;
The high-temperature heat accumulation medium using in photo-thermal power generation energy-storage system, due to cause specific, heat storage medium liquid level in accumulation of heat tank body and the bottom temperature difference strengthen, easily there is thermal stratification, the phenomenon that bottom temp reduces and occurs condensing, solidifies, affects service efficiency and the security of system of accumulation of heat and whole solar light-heat power-generation system;
Tradition solution adopts more lays the method for coil pipe by indirect heat exchange and heats in the method for storage tank external heat heat storage medium or tank, such change salt method needs to increase in addition an independently heating system, indirect heat exchange efficiency is low, resource loss is serious, increase system heat waste, so just increased equipment investment and operating cost.
Summary of the invention
The technical problem to be solved in the present invention is: technology and the device of the problem such as propose a kind ofly to solve phase-changing energy storage material thermal stratification in accumulation of heat tank body, condense, solidify.
The technical solution adopted in the present invention is: a kind of solar light-heat power-generation phase-change and energy-storage medium melts and anti-condensation technology, when solar light-heat power-generation phase-change and energy-storage medium need to melt for the first time, phase-change and energy-storage medium is added in the tank body of accumulation of heat storage tank, open the heater of tank base, the high temperature heat producing is directly passed to phase-change and energy-storage medium in tank body, and melts the phase-change and energy-storage medium in tank body; There is thermal stratification in the phase-change and energy-storage medium in solar light-heat power-generation accumulation of energy tank body, when condensing, solidifying, heater is opened again, the high temperature heat that heater produces is directly passed to phase-change and energy-storage medium in tank, phase-change and energy-storage medium in heating tank body, makes the heat accumulating phase change material temperature of tank body even.
Specifically, the heater of tank base of the present invention is electrical heating wire, and described electrical heating wire is arranged on the inner side of tank base and the inwall of bottom; During heating, directly contact the phase-change and energy-storage medium in tank body, improve the thermal efficiency.
The operating temperature that heater of the present invention produces is much larger than the fusing point of phase-changing energy storage material in tank body.
Simultaneously, the present invention also provides the efficient thawing of a kind of solar light-heat power-generation phase-change and energy-storage medium and coagulation prevention device, comprise that the bottom of the tank body of described accumulation of heat storage tank is provided with heater for adding the accumulation of heat storage tank of solar light-heat power-generation phase-change and energy-storage medium; In described tank body, be also provided with the temperature sensor of phase-change and energy-storage medium temperature in real-time detection tank body; Described temperature sensor and electrical heating wire are controlled interlock.In temperature sensor detects tank body, phase-change and energy-storage medium temperature is lower, by interlock, opens electrical heating wire heat supply, and the phase-change and energy-storage medium in heating tank body, makes the phase-change and energy-storage medium temperature in tank body even.
In order to keep pressure balance, increase security, the top of tank body of the present invention is provided with relief valve.
The invention has the beneficial effects as follows: the present invention fundamentally solves above all difficult problems, and the efficiency of heating surface is high, easy to use, simple to operate, safety, reallocates resources, equipment investment cost is low, is convenient to safeguard.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the preferred embodiments of the present invention;
In figure: 1, electrical heating wire; 2, tank body; 3, temperature sensor.
The specific embodiment
The present invention is further detailed explanation with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention is only described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Figure 1, a kind of solar light-heat power-generation phase-change and energy-storage medium is efficient to be melted and coagulation prevention device, comprises temperature sensor 3 in electrical heating wire 1 and tank body 2 and tank body.
The bottom of tank body 2 is provided with electrical heating wire 1; In tank body, be provided with the temperature sensor 3 of phase-change and energy-storage medium temperature in real-time detection tank body; Temperature sensor and electrical heating wire are controlled interlock.
When solar light-heat power-generation phase-change and energy-storage medium melts for the first time, open electrical heating wire 1, phase-change and energy-storage medium is added in tank body 2, the high temperature heat that electrical heating wire 1 provides is directly passed to phase-change and energy-storage medium, melts the phase-change and energy-storage medium in tank body; There is thermal stratification in the phase-change and energy-storage medium in solar light-heat power-generation accumulation of energy storage tank tank body 2, when condensing, solidifying, temperature sensor 3 detects phase-change and energy-storage medium temperature difference in tank body, pass through linked system, open electrical heating wire 1, phase-change and energy-storage medium in heating tank body 2, makes the phase-change and energy-storage medium temperature of tank body 2 even.
Electrical heating wire directly contacts with the phase-change and energy-storage medium in accumulation of heat tank body, to improve the thermal efficiency of heating system.The high temperature heat temperature that electrical heating wire produces is greater than the fusing point of phase-changing energy storage material in accumulation of heat tank body.Heat accumulating phase change material after heating, under the effect of free convection or pressure mixed flow, makes the heat accumulating phase change material temperature of accumulation of heat tank body even.
Just the specific embodiment of the present invention of describing in above description, various not illustrating is construed as limiting flesh and blood of the present invention, person of an ordinary skill in the technical field read after description can to before the described specific embodiment make an amendment or be out of shape, and do not deviate from essence of an invention and scope.
Claims (6)
1. a solar light-heat power-generation phase-change and energy-storage medium melts and anti-condensation technology, solar light-heat power-generation phase-change and energy-storage medium it is characterized in that: when need to melt for the first time, phase-change and energy-storage medium is added in the tank body of accumulation of heat storage tank, open the heater of tank base, the high temperature heat producing is directly passed to phase-change and energy-storage medium in tank body, and melts the phase-change and energy-storage medium in tank body; There is thermal stratification in the phase-change and energy-storage medium in solar light-heat power-generation accumulation of energy tank body, when condensing, solidifying, heater is opened again, the high temperature heat that heater produces is directly passed to phase-change and energy-storage medium in tank, phase-change and energy-storage medium in heating tank body, makes the heat accumulating phase change material temperature of tank body even.
2. solar light-heat power-generation phase-change and energy-storage medium as claimed in claim 1 melts and anti-condensation technology, it is characterized in that: the heater of described tank base is electrical heating wire, described electrical heating wire is arranged on the inner side of tank base and the inwall of bottom; During heating, directly contact the phase-change and energy-storage medium in tank body.
3. solar light-heat power-generation phase-change and energy-storage medium as claimed in claim 2 melts and anti-condensation technology, it is characterized in that: the operating temperature that described heater produces is much larger than the fusing point of phase-changing energy storage material in tank body.
4. solar light-heat power-generation phase-change and energy-storage medium melts and a coagulation prevention device, it is characterized in that: comprise that the bottom of the tank body of described accumulation of heat storage tank is provided with heater for adding the accumulation of heat storage tank of solar light-heat power-generation phase-change and energy-storage medium; In described tank body, be also provided with the temperature sensor of phase-change and energy-storage medium temperature in real-time detection tank body; Described temperature sensor and electrical heating wire are controlled interlock.
5. solar light-heat power-generation phase-change and energy-storage medium as claimed in claim 4 melts and coagulation prevention device, it is characterized in that: the heater of described tank base is electrical heating wire, described electrical heating wire is arranged on the inner side of tank base and the inwall of bottom; Described electrical heating wire directly contacts with the phase-change and energy-storage medium in tank body.
6. solar light-heat power-generation phase-change and energy-storage medium as claimed in claim 4 melts and coagulation prevention device, it is characterized in that: the top of described tank body is provided with relief valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455600.2A CN103512251A (en) | 2013-09-29 | 2013-09-29 | Technology and device for melt and condensation prevention of solar photo-thermal power generation phase-change energy-storage medium |
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| CN201310455600.2A CN103512251A (en) | 2013-09-29 | 2013-09-29 | Technology and device for melt and condensation prevention of solar photo-thermal power generation phase-change energy-storage medium |
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| CN103512251A true CN103512251A (en) | 2014-01-15 |
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| CN201310455600.2A Pending CN103512251A (en) | 2013-09-29 | 2013-09-29 | Technology and device for melt and condensation prevention of solar photo-thermal power generation phase-change energy-storage medium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676891A (en) * | 2015-03-03 | 2015-06-03 | 江苏中储能源装备有限公司 | Phase change energy storage medium melting device |
| CN104154656B (en) * | 2014-08-08 | 2017-04-05 | 殷苏 | Efficient anti-condensation stifled formula phase-change and energy-storage medium thawing apparatus |
| CN110056762A (en) * | 2019-05-17 | 2019-07-26 | 中国科学院理化技术研究所 | A kind of cryogenic liquid tank |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102654318A (en) * | 2012-04-19 | 2012-09-05 | 江苏太阳宝新能源有限公司 | Solar photo-thermal generation phase-change energy storage medium melting and anti-condensation technology and device |
| CN202613812U (en) * | 2012-04-19 | 2012-12-19 | 江苏太阳宝新能源有限公司 | Melting and anti-condensation device of solar photo-thermal power generation phase-change energy storing media |
| CN203586580U (en) * | 2013-09-29 | 2014-05-07 | 江苏中储能源装备有限公司 | Melting and anticondensation device for solar photo-thermal power-generation phase-change energy-storage medium |
-
2013
- 2013-09-29 CN CN201310455600.2A patent/CN103512251A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654318A (en) * | 2012-04-19 | 2012-09-05 | 江苏太阳宝新能源有限公司 | Solar photo-thermal generation phase-change energy storage medium melting and anti-condensation technology and device |
| CN202613812U (en) * | 2012-04-19 | 2012-12-19 | 江苏太阳宝新能源有限公司 | Melting and anti-condensation device of solar photo-thermal power generation phase-change energy storing media |
| CN203586580U (en) * | 2013-09-29 | 2014-05-07 | 江苏中储能源装备有限公司 | Melting and anticondensation device for solar photo-thermal power-generation phase-change energy-storage medium |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154656B (en) * | 2014-08-08 | 2017-04-05 | 殷苏 | Efficient anti-condensation stifled formula phase-change and energy-storage medium thawing apparatus |
| CN104676891A (en) * | 2015-03-03 | 2015-06-03 | 江苏中储能源装备有限公司 | Phase change energy storage medium melting device |
| CN110056762A (en) * | 2019-05-17 | 2019-07-26 | 中国科学院理化技术研究所 | A kind of cryogenic liquid tank |
| CN110056762B (en) * | 2019-05-17 | 2023-12-19 | 中国科学院理化技术研究所 | Low-temperature liquid storage tank |
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