CN104019567B - 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
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- CN104019567B CN104019567B CN201410214402.1A CN201410214402A CN104019567B CN 104019567 B CN104019567 B CN 104019567B CN 201410214402 A CN201410214402 A CN 201410214402A CN 104019567 B CN104019567 B CN 104019567B
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- heat pipe
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- assisted heat
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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
- Y02E10/44—Heat exchange systems
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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, apply on highland and severe cold ground particularly to one
The defroster of solar energy mirror field, district.
Background technology
In renewable energy power generation field, solar energy obtains in recent years owing to having the advantages such as reserves are big, distribution is wide
Extensively application, but China's solar energy resources enriches area is mainly distributed on west area, is suitable for building the sun
The area of energy power station (wrapping photovoltaic plant and light thermo-power station) is substantially western frigid plateau region, these
The a lot of surface layer in area belongs to Permafrost Area, and the conversion in season and global warming make the ground of frozen soil layer melt
Change sedimentation, thus endanger the stability of ground.And photovoltaic plant need to configure large area and gather the sun of solar energy
Energy panel array, light thermo-power station also needs to build large-area solar energy mirror field, the illuminator of solar energy mirror field
Requiring the highest to tracking accuracy, tracking accuracy directly affects the collecting efficiency of light thermo-power station, the sedimentation shadow of ground
Ring the tracking accuracy of illuminator.So either solar panel array or solar energy mirror field, the most over the ground
The stability of base proposes the highest requirement.The existence of frozen soil layer directly endangers the stability of roadbed.
Heat pipe has the characteristics such as excellent heat conductivility, simple in construction, stable and homogeneous temperature, many
In the engineerings such as year highway of Frozen Ground Area, railway, petroleum pipeline and water conservancy, heat pipe is used to cooling foundation,
Prevent ground freeze thawing from deforming, it is ensured that stablizing of frozen soil foundation.The 20 century 70 U.S. are in Alaska oil transportation
Pipe engineering uses in large quantities heat pipe solve Frozen soil problems, and hot pipe technique has been also on China's Qinghai-Tibet Railway
It is used to preventing frost heave and melting sedimentation of ground.
Existing heat pipe defroster is typically all traditional gravity assisted heat pipe, and pulsating heat pipe is a kind of new and effective
Heat transfer element, except having the advantage of conventional heat pipe, self there is also without wick, run and safeguard
Low cost, shape arbitrarily bend, all effectively work and evaporator section cooling section such as arbitrarily choose at the spy under arbitrary angle
Possessing some good points, a kind of defroster applied in solar energy mirror field, frigid plateau region of the present invention uses and passes
The mode that system gravity assisted heat pipe and pulsating heat pipe combine.
Summary of the invention
In order to overcome the shortcoming of above-mentioned existing heat pipe defroster, it is an object of the invention to provide a kind of application
At the defroster of solar energy mirror field, frigid plateau region, Conventional gravity heat pipe and pulsating heat pipe is used to combine
Mode, can effectively solve conventional heat pipe defroster exist longitudinal crack, heat pipe longtime running lost efficacy,
Degradation problem under resistance to frost, has resistance to frost excellence, service life length, effectively solution longitudinal crack etc.
Advantage.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of defroster applied in solar energy mirror field, frigid plateau region, including gravity assisted heat pipe 1, pulsation warm
Pipe 2 and radiating fin 3, gravity assisted heat pipe 1 is divided into evaporator section 101, adiabatic section 102 and cooling section 103；
Evaporator section 101 is machined with external screw thread 4, evaporator section 101 and adiabatic section 102 is placed in for taper and outer surface
Frozen soil layer, and the cooling section 103 of gravity assisted heat pipe is in atmospheric environment, cooling section 103 outer surface is welded with scattered
Hot fin 3, the pulsating heat pipe cooling section 202 of pulsating heat pipe 2 is through the installing hole welding of radiating fin 3, arteries and veins
The pulsating heat pipe evaporator section 201 of dynamic 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,
Gravity assisted heat pipe 1 is evacuated in managing, 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 ratio are 4:1:2.
Described pulsating heat pipe 2 becomes loop type, and tubing is copper or rustless steel, and intraductal working medium is compatible with tubing
Distilled water or ammonia, pulsating heat pipe 2 is evacuated in managing, and vacuum is 10-2～10-4Pa。
The quantity of described pulsating heat pipe 2 is pressed layer from top to bottom and is arranged, every pulsating heat pipe can be according to cooling section
Length be divided into more than 2 layers, every layer of 2～6 pulsating heat pipe 2 of fixing welding side by side.
Described radiating fin 3 is circular, and material is corrosion resistant plate, aluminium sheet or copper coin, in radiating fin 3
Boxing 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 invention have the benefit that
Have employed Conventional gravity heat pipe 1 and mode that new and effective heat transfer element pulsating heat pipe 2 combines, adopt
Determine stake technology with spiral and defroster is squeezed into frozen soil layer, effectively the cold in frozen soil layer is stored in and freezes
Soil layer, and will not melt at warm season frozen soil layer, improve intensity and the hardness of frozen soil, thus effectively prevent too
The ground of sun energy Jing Chang melts sedimentation.The present invention solves the frozen soil layer of solar energy mirror field, frigid plateau region and melts
Change settlement influence illuminator tracking accuracy problem, defroster of the present invention have resistance to frost excellent, knot
Structure is simple, tension dials 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 the pulsating heat pipe 2 of the present invention.
In figure: gravity assisted heat pipe 1；Evaporator section 101；Adiabatic section 102；Cooling section 103；Pulsation heat
Pipe 2；Pulsating heat pipe evaporator section 201；Pulsating heat pipe cooling section 202；Radiating fin 3, external screw thread
—4。
Detailed description of the invention
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings with embodiment.
A kind of defroster applied in solar energy mirror field, frigid plateau region, including gravity assisted heat pipe 1, pulsation warm
Pipe 2 and radiating fin 3, gravity assisted heat pipe 1 is divided into evaporator section 101, adiabatic section 102 and cooling section 103；
Evaporator section 101 is machined with external screw thread 4, evaporator section 101 and adiabatic section 102 is placed in for taper and outer surface
Frozen soil layer, and the cooling section 103 of gravity assisted heat pipe is in atmospheric environment, cooling section 103 outer surface is welded with scattered
Hot 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
Being 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,
Operating temperature range is at-60 DEG C～100 DEG C, and gravity assisted heat pipe 1 is evacuated in managing, 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 ratio are
4:1:2。
Described pulsating heat pipe 2 becomes loop type, and tubing is copper or rustless steel, and intraductal working medium is compatible with tubing
Distilled water, ammonia, pulsating heat pipe 2 is evacuated in managing, and vacuum is 10-2～10-4Pa。
The quantity of described pulsating heat pipe 2 is pressed layer from top to bottom and is arranged, every pulsating heat pipe is divided into 2 layers, often
Layer 2 pulsating heat pipe 2 of fixing welding side by side.
Described radiating fin 3 is circular, and material is corrosion resistant plate, aluminium sheet or copper coin, in radiating fin 3
Boxing 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,
Evaporator section 101 and adiabatic section 102 are to determine stake technology with certain inclination angle by spiral to squeeze into frozen soil layer, freeze-proof
Can optimum angle of incidence scope it be 45 °～90 °.
The operation principle of the present invention: be in the solar energy mirror field of frigid plateau region, in 1 year most of the time
Ambient temperature is less than frozen soil layer temperature, and the working medium in gravity assisted heat pipe 1 absorbs the heat in frozen soil layer, flashes to
Gas, owing to gravity assisted heat pipe 1 top and the bottom exist pressure reduction, gas flows to cooling from the bottom up along pipeline
Section 103.Under gravity, oil is back to evaporator section 101 along tube wall, so moves in circles, thus
Realize the efficient transmission of heat.It is delivered to the heat of cooling section 103 by being welded on gravity assisted heat pipe cooling section
Heat indirectly and directly is transferred in pipe external environment by pulsating heat pipe 2, is indirectly by radiating fin 3
Heat radiation, is directly that the pulsating heat pipe cooling section 202 of pulsating heat pipe 2 dispels the heat.The work of pulsating heat pipe 2 is former
Managing similar with the operation principle of Conventional gravity heat pipe, difference is that pulsating heat pipe 2 is not simple phase-change heat-exchange,
But efficiently transmitting heat by latent heat, phase transformation, expansion etc., pulsating heat pipe heat conductivility is conventional heat pipe
Decades of times.
The light thermo-power station solar energy mirror field that the present invention is directed to the abundant frigid plateau region of China's solar energy resources is frozen
Soil ground stability problem, have employed Conventional gravity heat pipe 1 and new and effective heat transfer element pulsating heat pipe 2
The mode combined, have employed spiral simultaneously and determines stake technology defroster is squeezed into frozen soil layer, effectively will freeze
Cold in soil layer is stored in frozen soil layer, and will not melt at warm season frozen soil layer, improve frozen soil intensity and
Hardness, thus effectively prevent due to frigid plateau region solar energy mirror Slag melt sedimentation cause reflective
Mirror tracking accuracy error becomes big problem.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office
Being limited to this, any those familiar with the art, can be easily in the technical scope that the invention discloses
The change expected or replacement, all should contain within protection scope of the present invention.Therefore, the protection of the present invention
Scope should be as the criterion with scope of the claims.
Claims (3)
1. the defroster applied in solar energy mirror field, frigid plateau region, it is characterised in that include weight
Power heat pipe (1), pulsating heat pipe (2) and radiating fin (3), gravity assisted heat pipe (1) is divided into gravity heat
Pipe evaporator section (101), gravity assisted heat pipe adiabatic section (102) and gravity assisted heat pipe cooling section (103)；Gravity assisted heat pipe
Evaporator section (101) is taper and outer surface is machined with external screw thread (4), gravity assisted heat pipe evaporator section (101)
It is placed in frozen soil layer with gravity assisted heat pipe adiabatic section (102), and the gravity assisted heat pipe cooling section (103) of gravity assisted heat pipe
In atmospheric environment, gravity assisted heat pipe cooling section (103) outer surface is welded with radiating fin (3), pulsating heat pipe
(2) pulsating heat pipe cooling section (202) is through the installing hole welding of radiating fin (3), pulsating heat pipe (2)
Pulsating heat pipe evaporator section (201) in gravity assisted heat pipe cooling section (103).
Described gravity assisted heat pipe (1) tubing is stainless steel tube or mild steel, and intraductal working medium is compatible with tubing
Ammonia, is evacuated in gravity assisted heat pipe (1) pipe, and vacuum is 10-2～10-4Pa, described gravity assisted heat pipe (1)
Gravity assisted heat pipe evaporator section (101), gravity assisted heat pipe adiabatic section (102) and gravity assisted heat pipe cooling section (103)
Length ratio is 4:1:2.
Described pulsating heat pipe (2) becomes loop type, and tubing is copper or rustless steel, and intraductal working medium is and tubing phase
The distilled water held and ammonia, be evacuated in pulsating heat pipe (2) pipe, and vacuum is 10-2～10-4Pa。
A kind of defroster applied in solar energy mirror field, frigid plateau region the most 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, dissipates
Hot fin (3) internal ring is welded on the outer surface of gravity assisted heat pipe gravity assisted heat pipe cooling section (103).
A kind of defroster applied in solar energy mirror field, frigid plateau region the most according to claim 1,
It is characterized in that, described gravity assisted heat pipe evaporator section (101) and gravity assisted heat pipe adiabatic section (102) are placed in and freeze
Soil layer leaning angle scope is 45 °～90 °.
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 CN104019567A (en) | 2014-09-03 |
| CN104019567B true CN104019567B (en) | 2017-01-11 |
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| 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 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782014B (en) * | 2017-11-28 | 2023-08-01 | 北京交通大学 | Solar adsorption type refrigerating device and method for permafrost region roadbed 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 |
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| CN104019567A (en) | 2014-09-03 |
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