CN202993618U - Solar energy vacuum heat collecting tube - Google Patents
Solar energy vacuum heat collecting tube Download PDFInfo
- Publication number
- CN202993618U CN202993618U CN2012205484801U CN201220548480U CN202993618U CN 202993618 U CN202993618 U CN 202993618U CN 2012205484801 U CN2012205484801 U CN 2012205484801U CN 201220548480 U CN201220548480 U CN 201220548480U CN 202993618 U CN202993618 U CN 202993618U
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- CN
- China
- Prior art keywords
- vacuum
- tube
- metal
- heat pipe
- glass tube
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- Expired - Fee Related
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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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- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model aims to provide a solar energy vacuum heat collecting tube. The solar energy vacuum heat collecting tube is characterized by comprising a cylindrical vacuum glass tube, and a vacuum chamber between an inner glass tube and an outer glass tube. An outside surface of the vacuum glass tube inner tube is coated with a metal reflection condensation coating. A metal heat pipe is placed in the vacuum glass tube. The metal heat pipe is composed of an evaporation section and a condensation section. The outer surface of the metal heat pipe is coated with a metal absorption coating. The evaporation section of the metal heat pipe is encapsulated in the vacuum glass tube by a vacuum tube sealed end cover. The metal heat pipe is directly heat sealed with the vacuum tube sealed end cover. Due to the fact that the metal reflection condensation coating is built in the solar energy vacuum heat collecting tube, pollution and erosion are avoided, condensation effects are good, service life is long, and a complex tracking device is avoided. Due to the fact that a metal absorption coating is coated on the outer surface of the metal heat pipe and the metal heat pipe is placed in the vacuum glass tube, solar energy conversion rate and heating efficiency are improved, and output temperature is effectively improved. The solar energy vacuum heat collecting tube is reasonable in structure design and convenient to install.
Description
Technical field
The utility model belongs to solar vacuum glass tube structure and manufacturing technology field, relates to a kind of solar energy vacuum tube, particularly a kind of heat pipe solar vacuum heat-collecting pipe.
Background technology
Solar energy is subjected to public attention deeply as a kind of clean energy resource, and solar vacuum heat-collecting pipe extensive use at present provides effective technological means for utilizing solar energy.But existing solar vacuum glass tube hot water apparatus solar energy conversion efficiency is low, and output temperature is lower, and the hot water temperature of generation is not high enough, and this device can not bear higher operating pressure, and practicality is relatively poor.In addition, the outer light collecting heat collector that existing output temperature is higher adopts external reflector, and production cost is high, and vulnerable to pollution and affect spotlight effect.
The utility model content
The purpose of the new construction of solar vacuum heat-collecting pipe is to overcome the deficiency of above-mentioned technology, a kind of high efficiency solar vacuum heat-collecting pipe is provided, this solar vacuum heat-collecting pipe of the present utility model, built-in reflective optically focused coating is not contaminated and corrode, spotlight effect is good, long service life; The heat pipe outer surface of vacuum heat collection pipe scribbles the plating absorber coatings, has reduced thermal contact resistance, and the efficiency of heating surface is high, has improved the solar energy conversion ratio.
The technical solution of the utility model is:
Solar vacuum heat-collecting pipe, comprise glass tube with vacuum and metal heat pipe, it is characterized in that: metal heat pipe is placed in glass tube with vacuum, this metal heat pipe is comprised of evaporator section and condensation segment, the evaporator section of metal heat pipe is encapsulated in glass-vacuum tube by the vacuum tube end cover, and metal heat pipe and the direct sealing by fusing of vacuum tube end cover are together.
Described glass tube with vacuum is cylindrical, is provided with the vacuum space between outer glass pipe in it.The outer surface coated metal reflecting condensation coating of described glass tube with vacuum inner tube, metal heat pipe outer surface coated metal absorber coatings, the metal absorption coating of metal heat pipe outer surface is absorbent body solar energy, the evaporator section of metal heat pipe is accumulated heat energy, by metal heat pipe heat conduction, by the condensation segment of metal heat pipe with thermal energy conduction to water body, water body is heated last generation high-temperature-hot-water or steam.
Absorber of the present utility model becomes the good metal heat pipe of heat conduction by the bad glass of the heat conduction of common thermal-collecting tube, the metal absorption coating matches with metal heat pipe and forms heat conducting path of low thermal resistance, the heat of laying in metal heat pipe outer surface metal absorption coating is more effectively conducted to water body, water body is heated.
Described glass-vacuum tube is coated with metallic reflection optically focused coating because the outer surface of its glass inner tube is coated with, and therefore the light that shines on metallic reflection optically focused coating of any direction all can reflex on the outer tube of glass-vacuum tube, thereby can reach the purpose of optically focused.Built-in metal reflecting condensation coating is not contaminated and corrode, and spotlight effect is good, and long service life can be removed complicated tracking means from.
The utility model adopts high-intensity vacuum glass pipe and the metal heat pipe of existing technology maturation, takes full advantage of it and absorbs the more effective advantageous characteristic of solar radiation heat energy, is transformed in pipe, and the transformation main points are as follows:
1, absorber becomes the good metal absorption coating of heat conduction and the evaporator section of metal heat pipe by the bad glass of the heat conduction of common thermal-collecting tube.
2, metal heat pipe is placed in glass tube with vacuum inside, and its outer surface scribbles the plating absorber coatings, to improve heat build-up efficient, reduces thermal resistance, increased thermal conductivity.
Therefore 3, the outer surface of glass-vacuum tube inner tube scribbles metallic reflection optically focused coating, and the light that shines on reflectance coating of any direction all can reflex on inner tube, thereby can reach the purpose of optically focused, can effectively increase heating surface area, improves heat build-up efficient.
Description of drawings
Fig. 1 is longitudinal sectional drawing of the present utility model.
Fig. 2 is transverse cross-sectional view of the present utility model.
In figure: 1. glass tube with vacuum outer tube; 2. glass tube with vacuum inner tube; 3. vacuum layer; 4. metal heat pipe evaporator section; 5. reflecting condensation coating; 6. metal absorption coating; 7. vacuum tube end cover; 8. metal heat pipe condensation segment.
The specific embodiment
The utility model will be further described by reference to the accompanying drawings.
As shown in Figure 1 and Figure 2, the utility model comprises glass tube with vacuum and metal heat pipe, metal heat pipe is positioned in glass tube with vacuum, formed by evaporator section and condensation segment, evaporator section is encapsulated in glass-vacuum tube by the vacuum tube end cover, and described metal heat pipe and the direct sealing by fusing of vacuum tube end cover are together.Described glass tube with vacuum is cylindrical, is provided with the vacuum space between outer glass pipe in it.The outer surface coated metal reflecting condensation coating of glass tube with vacuum inner tube, metal heat pipe outer surface coated metal absorber coatings, the metal absorption coating of metal heat pipe outer surface is absorbent body solar energy, the evaporator section of metal heat pipe is accumulated heat energy, by metal heat pipe heat conduction, by the condensation segment of metal heat pipe with thermal energy conduction to water body, water body is heated last generation high-temperature-hot-water or steam.
Claims (5)
1. solar vacuum heat-collecting pipe, comprise glass tube with vacuum and metal heat pipe, it is characterized in that: metal heat pipe is placed in glass tube with vacuum, and this metal heat pipe is comprised of evaporator section and condensation segment, and the evaporator section of metal heat pipe is encapsulated in glass-vacuum tube by the vacuum tube end cover.
2. solar vacuum heat-collecting pipe according to claim 1, is characterized in that: the outer surface coated metal reflecting condensation coating of glass tube with vacuum inner tube.
3. solar vacuum heat-collecting pipe according to claim 1, is characterized in that: metal heat pipe outer surface plating absorber coatings.
4. solar vacuum heat-collecting pipe according to claim 1, it is characterized in that: described metal heat pipe and the direct sealing by fusing of vacuum tube end cover are together.
5. solar vacuum heat-collecting pipe according to claim 1, it is characterized in that: glass tube with vacuum is cylindrical, is provided with the vacuum space between outer glass pipe in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205484801U CN202993618U (en) | 2012-10-17 | 2012-10-17 | Solar energy vacuum heat collecting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205484801U CN202993618U (en) | 2012-10-17 | 2012-10-17 | Solar energy vacuum heat collecting tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202993618U true CN202993618U (en) | 2013-06-12 |
Family
ID=48564793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205484801U Expired - Fee Related CN202993618U (en) | 2012-10-17 | 2012-10-17 | Solar energy vacuum heat collecting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202993618U (en) |
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2012
- 2012-10-17 CN CN2012205484801U patent/CN202993618U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |