CN203908064U - Antifreeze device for solar power heliostat field - Google Patents
Antifreeze device for solar power heliostat field Download PDFInfo
- Publication number
- CN203908064U CN203908064U CN201420262550.6U CN201420262550U CN203908064U CN 203908064 U CN203908064 U CN 203908064U CN 201420262550 U CN201420262550 U CN 201420262550U CN 203908064 U CN203908064 U CN 203908064U
- Authority
- CN
- China
- Prior art keywords
- heat pipe
- section
- gravity assisted
- pulsating heat
- frozen soil
- 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.)
- Expired - Lifetime
Links
- 230000002528 anti-freeze Effects 0.000 title abstract 5
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 230000005484 gravity Effects 0.000 claims abstract description 34
- 239000002689 soil Substances 0.000 claims abstract description 30
- 238000003754 machining Methods 0.000 claims abstract description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000010257 thawing Methods 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 abstract description 2
- 238000001704 evaporation Methods 0.000 abstract 3
- 230000008020 evaporation Effects 0.000 abstract 3
- 238000009413 insulation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 25
- 238000005516 engineering process Methods 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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
- Road Signs Or Road Markings (AREA)
Abstract
An antifreeze device for a solar power heliostat field comprises a gravity assisted heat pipe sequentially including an evaporation segment, a thermal insulation segment and a cooling segment. The evaporation segment which is tapered is provided with an external thread in the outer surface, made by machining. Radiating fins are welded on the outer surface of the cooling segment. A pulsating heat pipe cooling segment of a pulsating heat pipe penetrates radiating fin mounting holes and is welded; a pulsating heat pipe evaporation segment of the pulsating heat pipe is disposed within the cooling segment. The antifreeze device has the advantages that the traditional gravity assisted heat pipe and the novel efficient heat transfer unit, the pulsating heat pipe, are combined, the antifreeze device is driven into a frozen soil layer by a screw pile fixing method, cold of the frozen soil layer is effectively stored in the frozen soil layer, the frozen soil layer never thaws in warm seasons, frozen soil is better in strength and rigidity, and the problem that thawing settlement of a heliostat field foundation in a highland area causes a larger tracing precision mirror of heliostats is effectively solved. The antifreeze device has the advantages of excellent anti-freezing property, simple structure, high tensile strength, low manufacturing cost and the like.
Description
Technical field
The utility model belongs to freezing proof technique field, frigid plateau region, particularly the defroster of a kind of solar energy mirror field.
Background technology
In renewable energy power generation field, reserves are large, the advantage such as wide that distributes is used widely in recent years owing to having for solar energy, but China's solar energy resources enriches area is mainly distributed in west area, the area that is applicable to construction solar power station (wrapping photovoltaic plant and photo-thermal power station) is substantially all western frigid plateau region, the a lot of surface layers in these areas belong to Permafrost Area, the conversion in season and global warming make the ground of frozen soil layer melt sedimentation, thus the stability of harm ground.And photovoltaic plant need configure the solar panel array that large area gathers solar energy, photo-thermal power station also needs to build large-area solar energy mirror field, the reflective mirror of solar energy mirror field requires very high to tracking accuracy, tracking accuracy directly affects the collecting efficiency in photo-thermal power station, the tracking accuracy of the settlement influence reflective mirror of ground.So no matter be solar panel array or solar energy mirror field, all the stability of ground is proposed to very high requirement.The existence of frozen soil layer is directly endangering the stability of roadbed.
Heat pipe has the characteristics such as good heat conductivility, simple in structure, stable and temperature be even, in the engineerings such as highway, railway, petroleum pipeline and water conservancy of Permafrost Area, heat pipe is used to cooling foundation, prevents ground freeze thawing distortion, guarantees the stable of frozen soil foundation.The 20 century 70 U.S. have used in large quantities heat pipe to solve Frozen soil problems in Trans-Alaska Pipeline lineman journey, and on Er China Qinghai-Tibet Railway, hot pipe technique is also used to preventing frost heave and melting sedimentation of ground.
Existing heat pipe defroster is all generally traditional gravity assisted heat pipe, pulsating heat pipe is a kind of new and effective heat transfer element, except thering is conventional heat pipe, all effectively work and evaporator section cooling section such as choose arbitrarily at the peculiar strong point, the mode that the defroster of a kind of solar energy mirror described in the utility model field adopts traditional gravity assisted heat pipe and pulsating heat pipe to combine under crooked, arbitrary angle arbitrarily self also, shape low without liquid-sucking core, operation and maintenance cost.
Summary of the invention
In order to overcome the shortcoming of above-mentioned existing heat pipe defroster, the purpose of this utility model is to provide the defroster of a kind of solar energy mirror field, the mode that adopts traditional gravity assisted heat pipe and pulsating heat pipe to combine, can effectively solve the longitudinal crack that conventional heat pipe defroster exists, the long-term operational failure of heat pipe, degradation problem under resistance to frost, have resistance to frost excellence, service life long, effectively solve the advantages such as longitudinal crack.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A defroster for solar energy mirror field, comprises gravity assisted heat pipe 1, pulsating heat pipe 2 and radiating fin 3, and gravity assisted heat pipe 1 is divided into evaporator section 101, adiabatic section 102 and cooling section 103 successively; Evaporator section 101 has external screw thread 4 for taper and outer surface machining, evaporator section 101 and adiabatic section 102 are placed in frozen soil layer, and the cooling section 103 of gravity assisted heat pipe is in atmospheric environment, cooling section 103 outer surfaces are welded with radiating fin 3, the pulsating heat pipe cooling section 202 of pulsating heat pipe 2 is through the installing hole welding of radiating fin 3, and the pulsating heat pipe evaporator section 201 of pulsating heat pipe 2 is in cooling section 103.
Described gravity assisted heat pipe 1 tubing is stainless steel tube, mild steel, and intraductal working medium is the ammonia compatible with tubing, in gravity assisted heat pipe 1 pipe, is evacuated, and vacuum is 10
-2～10
-4pa, the evaporator section 101 of described gravity assisted heat pipe 1, adiabatic section 102 and cooling section 103 length ratio optimum ratios are 4:1:2.
Described 2 one-tenth loop types of pulsating heat pipe, tubing is copper or stainless steel, and intraductal working medium is distilled water or the ammonia compatible with tubing, in pulsating heat pipe 2 pipes, is evacuated, and vacuum is 10
-2～10
-4pa.
The quantity of described pulsating heat pipe 2 is from top to bottom by layer layout, and every pulsating heat pipe can be divided into more than 2 layers according to the length of cooling section, fixes side by side 2～6 pulsating heat pipes 2 of welding for every layer.
Described radiating fin 3 is circular, and material is corrosion resistant plate, aluminium sheet or copper coin, and the interior boxing of radiating fin 3 is connected on the outer surface of gravity assisted heat pipe cooling section 103.
It is 45 °～90 ° that described evaporator section 101 and adiabatic section 102 are placed in optimum angle of incidence scope in frozen soil layer.
The beneficial effects of the utility model are:
The mode that has adopted traditional gravity assisted heat pipe 1 and new and effective heat transfer element pulsating heat pipe 2 to combine, adopted the fixed stake of spiral technology that defroster is squeezed into frozen soil layer, effectively the cold in frozen soil layer is stored in to frozen soil layer, and can not melt at warm season frozen soil layer, improved intensity and the hardness of frozen soil, thereby effectively prevented that the ground of solar energy mirror field from melting sedimentation.The frozen soil layer that the utility model has solved solar energy mirror field, frigid plateau region melts settlement influence reflective mirror tracking accuracy problem, and defroster described in the utility model has that resistance to frost is good, simple in structure, tension is dialled the advantages such as power is strong, cost is low.
Accompanying drawing explanation
Fig. 1 is the utility model defroster schematic diagram.
Fig. 2 is the utility model defroster cooling section partial schematic diagram;
Fig. 3 is the schematic diagram of pulsating heat pipe 2 of the present utility model.
In figure: gravity assisted heat pipe-1; Evaporator section-101; Adiabatic section-102; Cooling section-103; Pulsating heat pipe-2; Pulsating heat pipe evaporator section-201; Pulsating heat pipe cooling section-202; Radiating fin-3, external screw thread-4.
The specific embodiment
Below in conjunction with drawings and Examples, describe embodiment of the present utility model in detail.
A defroster for solar energy mirror field, comprises gravity assisted heat pipe 1, pulsating heat pipe 2 and radiating fin 3, and gravity assisted heat pipe 1 is divided into evaporator section 101, adiabatic section 102 and cooling section 103 successively; Evaporator section 101 has external screw thread 4 for taper and outer surface machining, evaporator section 101 and adiabatic section 102 are placed in frozen soil layer, and the cooling section 103 of gravity assisted heat pipe is in atmospheric environment, cooling section 103 outer surfaces are welded with radiating fin 3, the pulsating heat pipe cooling section 202 of pulsating heat pipe 2 is through the installing hole welding of radiating fin 3, also be placed in atmospheric environment, the pulsating heat pipe evaporator section 201 of pulsating heat pipe 2 is in cooling section 103.
Described gravity assisted heat pipe 1 tubing is stainless steel tube, mild steel, and intraductal working medium is the ammonia compatible with tubing, and operating temperature range, at-60 ℃～100 ℃, is evacuated in gravity assisted heat pipe 1 pipe, and vacuum is 10
-2～10
-4pa, the evaporator section 101 of described gravity assisted heat pipe 1, adiabatic section 102 and cooling section 103 length ratio optimum ratios are 4:1:2.
Described 2 one-tenth loop types of pulsating heat pipe, tubing is copper or stainless steel, and intraductal working medium is distilled water, the ammonia compatible with tubing, in pulsating heat pipe 2 pipes, is evacuated, and vacuum is 10
-2～10
-4pa.
The quantity of described pulsating heat pipe 2 is from top to bottom by layer layout, and every pulsating heat pipe is divided into 2 layers, fixes side by side 2 pulsating heat pipes 2 of welding for every layer.
Described radiating fin 3 is circular, and material is corrosion resistant plate, aluminium sheet or copper coin, and the interior boxing of radiating fin 3 is connected on the outer surface of gravity assisted heat pipe cooling section 103.
It is 45 °～90 ° that described evaporator section 101 and adiabatic section 102 are placed in optimum angle of incidence scope in frozen soil layer, and evaporator section 101 and adiabatic section 102 are with certain inclination angle, by spiral, to determine stake technology to squeeze into frozen soil layer, and resistance to frost optimum angle of incidence scope is 45 °～90 °.
Operation principle of the present utility model: the solar energy mirror field in frigid plateau region, in 1 year most of the time, environment temperature is lower than frozen soil layer temperature, working medium in gravity assisted heat pipe 1 absorbs the heat in frozen soil layer, flash to gas, because gravity assisted heat pipe 1 top and the bottom exist pressure reduction, gas flows to cooling section 103 from the bottom up along pipeline.Under the effect of gravity, oil is back to evaporator section 101 along tube wall, so moves in circles, thereby realizes the efficient transmission of heat.The heat that is delivered to cooling section 103 indirectly and is directly passed to heat in pipe external environment and goes by being welded on the pulsating heat pipe 2 of gravity assisted heat pipe cooling section, being indirectly to dispel the heat by radiating fin 3, is directly pulsating heat pipe cooling section 202 heat radiations of pulsating heat pipe 2.The operation principle of pulsating heat pipe 2 and the operation principle of traditional gravity assisted heat pipe are similar, and difference is that pulsating heat pipe 2 is not simple phase-change heat-exchange, but by the efficient transferring heat such as latent heat, phase transformation, expansion, pulsating heat pipe heat conductivility is the decades of times of conventional heat pipe.
The utility model is for solar energy mirror field, the photo-thermal power station frozen soil layer foundation stability problem of the abundant frigid plateau region of China's solar energy resources, the mode that has adopted traditional gravity assisted heat pipe 1 and new and effective heat transfer element pulsating heat pipe 2 to combine, adopted the fixed stake of spiral technology that defroster is squeezed into frozen soil layer simultaneously, effectively the cold in frozen soil layer is stored in to frozen soil layer, and can not melt at warm season frozen soil layer, intensity and the hardness of frozen soil have been improved, thereby effectively prevent that the reflective mirror tracking accuracy error that the thawing sedimentation due to frigid plateau region solar energy mirror Slag causes from becoming large problem.
The above; it is only the preferably specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (5)
1. the defroster of a solar energy mirror field, it is characterized in that, comprise gravity assisted heat pipe (1), pulsating heat pipe (2) and radiating fin (3), gravity assisted heat pipe (1) is divided into evaporator section (101), adiabatic section (102) and cooling section (103) successively; Evaporator section (101) has external screw thread (4) for taper and outer surface machining, evaporator section (101) and adiabatic section (102) are placed in frozen soil layer, and the cooling section of gravity assisted heat pipe (103) is in atmospheric environment, cooling section (103) outer surface is welded with radiating fin (3), the pulsating heat pipe cooling section (202) of pulsating heat pipe (2) is through the installing hole welding of radiating fin (3), and the pulsating heat pipe evaporator section (201) of pulsating heat pipe (2) is in cooling section (103).
2. the defroster of a kind of solar energy mirror according to claim 1 field, it is characterized in that, described gravity assisted heat pipe (1) tubing is stainless steel tube or mild steel, and intraductal working medium is the ammonia compatible with tubing, in gravity assisted heat pipe (1) pipe, be evacuated, vacuum is 10
-2～10
-4pa, the evaporator section (101) of described gravity assisted heat pipe (1), adiabatic section (102) and cooling section (103) length ratio optimum ratio are 4:1:2.
3. the defroster of a kind of solar energy mirror according to claim 1 field, is characterized in that, described pulsating heat pipe (2) becomes loop type, tubing is copper or stainless steel, intraductal working medium is distilled water, the ammonia compatible with tubing, in pulsating heat pipe (2) pipe, is evacuated, and vacuum is 10
-2～10
-4pa.
4. the defroster of a kind of solar energy mirror according to claim 1 field, is characterized in that, described radiating fin 3 is circular, and material is corrosion resistant plate, aluminium sheet or copper coin, and the interior boxing of radiating fin 3 is connected on the outer surface of gravity assisted heat pipe cooling section (103).
5. the defroster of a kind of solar energy mirror according to claim 1 field, is characterized in that, it is 45 °～90 ° that described evaporator section (101) and adiabatic section (102) are placed in optimum angle of incidence scope in frozen soil layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262550.6U CN203908064U (en) | 2014-05-21 | 2014-05-21 | Antifreeze device for solar power heliostat field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262550.6U CN203908064U (en) | 2014-05-21 | 2014-05-21 | Antifreeze device for solar power heliostat field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908064U true CN203908064U (en) | 2014-10-29 |
Family
ID=51782330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420262550.6U Expired - Lifetime CN203908064U (en) | 2014-05-21 | 2014-05-21 | Antifreeze device for solar power heliostat field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203908064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019567A (en) * | 2014-05-21 | 2014-09-03 | 中国华能集团清洁能源技术研究院有限公司 | Anti-freezing device applied to solar mirror field of plateau cold area |
-
2014
- 2014-05-21 CN CN201420262550.6U patent/CN203908064U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019567A (en) * | 2014-05-21 | 2014-09-03 | 中国华能集团清洁能源技术研究院有限公司 | Anti-freezing device applied to solar mirror field of plateau cold area |
| CN104019567B (en) * | 2014-05-21 | 2017-01-11 | 中国华能集团清洁能源技术研究院有限公司 | Anti-freezing device applied to solar mirror field of plateau cold area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |