CN104019567A - Anti-freezing device applied to solar mirror field of plateau cold area - Google Patents
Anti-freezing device applied to solar mirror field of plateau cold area Download PDFInfo
- Publication number
- CN104019567A CN104019567A CN201410214402.1A CN201410214402A CN104019567A CN 104019567 A CN104019567 A CN 104019567A CN 201410214402 A CN201410214402 A CN 201410214402A CN 104019567 A CN104019567 A CN 104019567A
- Authority
- CN
- China
- Prior art keywords
- heat pipe
- section
- gravity assisted
- pulsating heat
- cooling
- 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.)
- Granted
Links
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 anti-freezing device applied to a solar mirror field of the plateau cold area comprises a gravity assisted heat pipe, and the gravity assisted heat pipe is divided into an evaporation section, a thermal isolation section and a cooling section in sequence; the evaporation section is conical, outer threads are machined on the outer surface of the evaporation section, cooling fins are welded to the outer surface of the cooling section, pulsating heat pipe cooling sections of pulsating heat pipes penetrate through installation holes of the cooling fins to be welded, and pulsating heat pipe evaporation sections of the pulsating heat pipes are located inside the cooling section. The mode that a traditional gravity assisted heat pipe is combined with a novel efficient heat transfer element, namely the pulsating heat pipe is adopted, and at the same time, the anti-freezing device is driven into the tundra through the spiral staking technology, so that cooling capacity in the tundra is effectively stored in the tundra, the tundra does not melt in warm seasons, the strength and hardness of the frozen earth are improved, and consequently the problem that as a foundation of the solar mirror field of the plateau cold area melts and subsides, errors of the tracking precision of a reflector are large is effectively solved. The anti-freezing device has the advantages of being good in anti-freezing performance, simple in structure, high in tensile strength, low in manufacturing price and the like.
Description
Technical field
The invention belongs to freezing proof technique field, frigid plateau region, particularly a kind of defroster that is applied in solar energy mirror field, frigid plateau region.
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 a kind of defroster that is applied in solar energy mirror field, frigid plateau region of the present invention 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 object of the present invention is to provide a kind of defroster that is applied in solar energy mirror field, frigid plateau region, 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 used in the present invention is:
Be applied in a defroster for solar energy mirror field, frigid plateau region, 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 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.
Beneficial effect of the present invention is:
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 invention solves solar energy mirror field, frigid plateau region melts settlement influence reflective mirror tracking accuracy problem, and defroster of the present invention 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 defroster schematic diagram of the present invention.
Fig. 2 is defroster cooling section partial schematic diagram of the present invention;
Fig. 3 is the schematic diagram of pulsating heat pipe 2 of the present invention.
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 embodiments of the present invention in detail.
Be applied in a defroster for solar energy mirror field, frigid plateau region, 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 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 invention: 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 present invention is directed to 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; be only the present invention's specific embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (5)
1. a defroster that is applied in solar energy mirror field, frigid plateau region, 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. a kind of defroster that is applied in solar energy mirror field, frigid plateau region according to claim 1, it is characterized in that, described gravity assisted heat pipe (1) tubing is stainless steel tube or mild steel, 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. a kind of defroster that is applied in solar energy mirror field, frigid plateau region according to claim 1, it 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, be evacuated, vacuum is 10
-2～10
-4pa.
4. a kind of defroster that is applied in solar energy mirror field, frigid plateau region according to claim 1, it 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. a kind of defroster that is applied in solar energy mirror field, frigid plateau region according to claim 1, 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 |
|---|---|---|---|
| CN201410214402.1A CN104019567B (en) | 2014-05-21 | 2014-05-21 | Anti-freezing device applied to solar mirror field of plateau cold area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410214402.1A CN104019567B (en) | 2014-05-21 | 2014-05-21 | Anti-freezing device applied to solar mirror field of plateau cold area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104019567A true CN104019567A (en) | 2014-09-03 |
| CN104019567B CN104019567B (en) | 2017-01-11 |
Family
ID=51436461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410214402.1A Active CN104019567B (en) | 2014-05-21 | 2014-05-21 | Anti-freezing device applied to solar mirror field of plateau cold area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104019567B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782014A (en) * | 2017-11-28 | 2018-03-09 | 北京交通大学 | Towards the adsorption refrigeration device and method of Permafrost Area subgrade engineering |
| CN114134772A (en) * | 2021-12-17 | 2022-03-04 | 安徽理工大学 | Passive roadbed anti-freezing equipment for seasonal frozen soil and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5238053A (en) * | 1992-04-03 | 1993-08-24 | Long Erwin L | Method of and system for warming road surface |
| CN2589513Y (en) * | 2002-12-26 | 2003-12-03 | 刘纪福 | Heat pipe foundation pile applied to permafrost zone |
| CN2589923Y (en) * | 2002-12-26 | 2003-12-03 | 新渠热传导技术应用开发(大连)有限公司 | Hot rod for keeping frozen soil stable |
| CN203908064U (en) * | 2014-05-21 | 2014-10-29 | 中国华能集团清洁能源技术研究院有限公司 | Antifreeze device for solar power heliostat field |
-
2014
- 2014-05-21 CN CN201410214402.1A patent/CN104019567B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5238053A (en) * | 1992-04-03 | 1993-08-24 | Long Erwin L | Method of and system for warming road surface |
| CN2589513Y (en) * | 2002-12-26 | 2003-12-03 | 刘纪福 | Heat pipe foundation pile applied to permafrost zone |
| CN2589923Y (en) * | 2002-12-26 | 2003-12-03 | 新渠热传导技术应用开发(大连)有限公司 | Hot rod for keeping frozen soil stable |
| CN203908064U (en) * | 2014-05-21 | 2014-10-29 | 中国华能集团清洁能源技术研究院有限公司 | Antifreeze device for solar power heliostat field |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782014A (en) * | 2017-11-28 | 2018-03-09 | 北京交通大学 | Towards the adsorption refrigeration device and method of Permafrost Area subgrade engineering |
| CN114134772A (en) * | 2021-12-17 | 2022-03-04 | 安徽理工大学 | Passive roadbed anti-freezing equipment for seasonal frozen soil and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104019567B (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104019567A (en) | Anti-freezing device applied to solar mirror field of plateau cold area | |
| CN203908064U (en) | Antifreeze device for solar power heliostat field | |
| WO2013183067A2 (en) | An improved heat collection element for linear collector | |
| CN102393091A (en) | Load-bearing anti-freezing solar thermal collector tube | |
| CN203719231U (en) | Solar refrigerating plant | |
| CN106123367B (en) | A kind of natural gas buried pipe anti-freeze expansion system of combination solar energy and geothermal energy | |
| CN103574933A (en) | Heating medium superconductive tube sheet integrated collector | |
| CN201373599Y (en) | Anti-freezing flat-plate solar collector | |
| CN114484902A (en) | Pipe-in-pipe heat tracing anti-freezing and frozen soil anti-melting system based on solar heat collection | |
| CN210921837U (en) | Membrane type solar heat collector based on micro heat pipe heat conduction | |
| CN2839944Y (en) | Environment protection high-speed low-temperature heat bar device | |
| CN203704386U (en) | Heat storage type solar low-temperature heat supply system | |
| CN202598896U (en) | Pressure-bearing type anti-exploding, anti-freezing and anti-leaking solar thermal collector | |
| CN208546745U (en) | A kind of heating device of air-heating type gasifier | |
| CN101975464A (en) | Solar heat collector | |
| CN101676612A (en) | Thermal-insulation device for heat pipes of storage batteries of solar outdoor lamp | |
| CN203489496U (en) | Liquid tube type vacuum tube solar heat collector being compatible with phase change heat accumulation function | |
| CN103868244A (en) | Liquid pipe type vacuum pipe solar heat collector capable of being compatible with phase change heat accumulation function | |
| CN103925715A (en) | Antifreeze flat-plate solar water heater | |
| CN100387925C (en) | Environment-friendly high-speed low temperature hot-bar apparatus | |
| CN209355506U (en) | A kind of NEW TYPE OF COMPOSITE pulsating heat pipe solar water heater | |
| WO2014113107A1 (en) | Nitrogen based thermal storage medium | |
| CN212673413U (en) | Solar energy and aquifer energy storage coupling heat balance system | |
| CN220648681U (en) | Ground heating rod capable of heating and cooling ground | |
| CN201032296Y (en) | Solar energy water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |