CN1815102B - Full-glass heat-pipe type vacuum solar heat-collecting pipe - Google Patents
Full-glass heat-pipe type vacuum solar heat-collecting pipe Download PDFInfo
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- CN1815102B CN1815102B CN2005100073272A CN200510007327A CN1815102B CN 1815102 B CN1815102 B CN 1815102B CN 2005100073272 A CN2005100073272 A CN 2005100073272A CN 200510007327 A CN200510007327 A CN 200510007327A CN 1815102 B CN1815102 B CN 1815102B
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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
Abstract
Present invention relates to a all glass heat tube type vacuum solar heat collection pipe, belongs to solar energy heat utilization technology field. Said invention includes all glass vacuum solar heat collection pipe, opposite joint pipe, enclosed space heat transfer working medium. It features heat transfer working medium volume occupied enclosed space volume ratio greater than 0.03 per cent and less than 0.1 per cent, said heat transfer working medium being 0 to 30 per cent propylene glycol water solution or 0 to 20 per cent mineral acid, brine solution, said mineral acid, brine solution being potassium dichromate, potassium sulfate, sulfuric acid and phosphatic water solution, or potassium dichromate, potassium sulfate, ammonium sulfate and ammonium phosphate water solution, or potassium dichromate, potassium sulfate, sulfuric acid, phosphoric acid, ammonium sulfate and ammonium phosphate water solution, inner glass tube outer wall outer wall of said all glass solar heat collection tube having one or more than one support ring along axial direction. Said invention is safety, reliable, unease damage in installing and transportation process.
Description
Technical field
The present invention relates to a kind of all-glass heat tube type evacuated solar collector tube (hereinafter to be referred as the heat pipe-type thermal-collecting tube), belong to the solar energy utilization technique field.
Background technology
In application number is 200420050936.7 patent application, propose in order to make heat transfer efficiency good, and reduce the pressure in the confined space, the volume of heat pipe-type thermal-collecting tube transfer working medium in heat is 1/500～1/150 of a confined space volume.Through calculating and experiment, when empty the solarization appears in thermal-collecting tube (anhydrous in the vacuum tube collector water tank), temperature can reach 200 ℃ in the pipe, or even 250 ℃, according to above-mentioned working medium amount, at this moment the pressure limit in the heat pipe-type thermal-collecting tube is 3.6～12 atmospheric pressure, and the glass safety working strength of common used heat pipe-type thermal-collecting tube is exactly 6 atmospheric pressure, add that glass tube itself also has certain machining stress, so this working medium weight range is bigger than normal, just 1/300～1/150 this working medium amount volume ratio scope in use is easy to cause having the danger of bombing, safety inadequately when sky shines.
Summary of the invention
The objective of the invention is to make a kind of more safe and reliable all-glass heat tube type evacuated solar collector tube in order to overcome the shortcoming of above-mentioned heat pipe-type thermal-collecting tube.
The present invention includes complete glass vacuum sun thermal-collecting tube, butt tube, confined space and heat-transfer working medium, it is characterized in that the volume of heat-transfer working medium accounts for the volume ratio of glass heat pipe confined space volume greater than 0.03%, less than 0.1%.
Said heat-transfer working medium is 0～30% aqueous solution of propylene glycol.
Said heat-transfer working medium is 0～20% inorganic acid, saline solution.
Also one or more metal supporting rings can be arranged vertically on the inner glass tube outer wall of said complete glass vacuum sun thermal-collecting tube.
Advantage of the present invention is: because the amount of intraductal heat transfer working medium is few, the maximum pressure that can limit confined space is no more than 5 atmospheric pressure, guarantees that glass is in the pressure range that can bear; Increased metal supporting rings, the structural strength of heat pipe-type thermal-collecting tube is improved, not fragile in installation and transportation.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment one.
Fig. 2 is the specific embodiment one water temperature and graph of a relation constantly when test.
Fig. 3 is the structural representation of the specific embodiment two.
The specific embodiment
Fig. 1 has provided first embodiment of the present invention, and wherein 1 is complete glass vacuum sun thermal-collecting tube, and the 2nd, inner glass tube, the 3rd, butt tube, the 4th, confined space, the 5th, heat-transfer working medium.Calculating combines with experiment according to theory, is guaranteeing also will to guarantee its heat exchange property simultaneously under the heat pipe-type thermal-collecting tube prerequisite safe in utilization.In the present embodiment, the volume of working medium and the volume ratio of confined space are 0.08%, if the size of confined space is φ 34 * 1600mm, then the working medium amount is 1.2ml, employing be pure water.By calculating, when temperature reached 250 ℃ in pipe, the pressure in the pipe can not surpass 4 atmospheric pressure, therefore used as safe as a house.The butt tube of present embodiment partly inserted in 1.3 liters the water-filled test water tank, under the solar irradiation, average ambient temperature is-4.5 ℃ in the winter time, and the average water temperature in the water tank is seen Fig. 2 with relation curve constantly.Just as can be seen, the heat transfer property of present embodiment is good from figure, and the amount that working medium is described is can satisfy fully to conduct heat to require.
If the aqueous solution with organic matter or inorganic acid, salt, aqueous solution of propylene glycol as 0～30% or 0～20% inorganic acid, saline solution, inorganic acid, salt can be composition or the composition of potassium bichromate, potassium sulfate, ammonium sulfate and ammonium phosphate or the compositions of potassium bichromate, potassium sulfate, sulfuric acid, phosphoric acid, ammonium sulfate and ammonium phosphate of potassium bichromate, potassium sulfate, sulfuric acid and phosphoric acid, can also play antifreeze effect.
Fig. 3 has provided an alternative embodiment of the invention, and wherein 1 is complete glass vacuum sun thermal-collecting tube, and the 2nd, inner glass tube, the 3rd, butt tube, the 4th, confined space, the 5th, heat-transfer working medium, the 6th, metal supporting rings.The volume of heat-transfer working medium and the volume ratio of confined space are 0.05%, working concentration is the aqueous solution of 15% potassium bichromate, potassium sulfate, sulfuric acid and phosphoric acid compositions, the proportional quantity of several inorganic acids, salt is 1: 29: 19: 14, present embodiment is identical with the hot property of embodiment one, can also reduce freezing point, play antifreeze effect.In addition, because the development trend of thermal-collecting tube is that pipe is done longer and longer now, the flexible deformation of pipe self is also more serious, therefore in the process of transportation and installation, is easy to damage thermal-collecting tube.After having installed metal supporting rings additional, just can reduce distortion, in the process of transportation and installation, the heat pipe-type thermal-collecting tube is just not fragile yet.Use a metal supporting rings in the present embodiment, placed in the middle vertically.
The number of metal supporting rings can also be used two or more according to the physical length of pipe, axially evenly distributes along thermal-collecting tube usually.
Claims (9)
1. all-glass heat tube type evacuated solar collector tube, comprise complete glass vacuum sun thermal-collecting tube, butt tube, confined space and heat-transfer working medium, the volume that it is characterized in that heat-transfer working medium accounts for the volume ratio of glass heat pipe confined space volume greater than 0.03%, less than 0.1%.
2. according to the said all-glass heat tube type evacuated solar collector tube of claim 1, it is characterized in that said heat-transfer working medium is 0～30% aqueous solution of propylene glycol.
3. according to the said all-glass heat tube type evacuated solar collector tube of claim 1, it is characterized in that said heat-transfer working medium is 0～20% the inorganic acid and the mixed solution of salt solution, or saline solution.
4. according to the said all-glass heat tube type evacuated solar collector tube of claim 3, the mixed solution that it is characterized in that said inorganic acid and salt solution is the aqueous solution of potassium bichromate, potassium sulfate, sulfuric acid and phosphoric acid compositions.
5. according to the said all-glass heat tube type evacuated solar collector tube of claim 3, it is characterized in that said saline solution is the aqueous solution of potassium bichromate, potassium sulfate, ammonium sulfate and ammonium phosphate composition.
6. according to the said all-glass heat tube type evacuated solar collector tube of claim 3, the mixed solution that it is characterized in that said inorganic acid and salt solution is the aqueous solution of potassium bichromate, potassium sulfate, sulfuric acid, phosphoric acid, ammonium sulfate and ammonium phosphate composition.
7. according to claim 1,2,3,4,5 or 6 said all-glass heat tube type evacuated solar collector tubes, it is characterized in that on the inner glass tube outer wall of complete glass vacuum sun thermal-collecting tube one or more metal supporting rings being arranged vertically.
8. according to the said all-glass heat tube type evacuated solar collector tube of claim 7, it is characterized in that a said metal supporting rings is placed in the middle vertically.
9. according to the said all-glass heat tube type evacuated solar collector tube of claim 7, it is characterized in that said a plurality of metal supporting rings evenly distributes vertically.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100073272A CN1815102B (en) | 2005-02-06 | 2005-02-06 | Full-glass heat-pipe type vacuum solar heat-collecting pipe |
| EP05743402.9A EP1752720B1 (en) | 2004-05-13 | 2005-05-13 | Glass vacuum heat pipe type solar heat collection pipe |
| PCT/CN2005/000668 WO2005111516A1 (en) | 2004-05-13 | 2005-05-13 | Glass vacuum heat pipe type solar heat collection pipe |
| HK07101065.1A HK1094245A1 (en) | 2005-02-06 | 2007-01-30 | A glass vacuum heat pipe type solar heat collection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100073272A CN1815102B (en) | 2005-02-06 | 2005-02-06 | Full-glass heat-pipe type vacuum solar heat-collecting pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1815102A CN1815102A (en) | 2006-08-09 |
| CN1815102B true CN1815102B (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100073272A Active CN1815102B (en) | 2004-05-13 | 2005-02-06 | Full-glass heat-pipe type vacuum solar heat-collecting pipe |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1815102B (en) |
| HK (1) | HK1094245A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871865B (en) * | 2009-04-21 | 2012-07-04 | 北京清华阳光能源开发有限责任公司 | On-line detection method for anti-detonating quality of all-glass heat tube type evacuated solar collector tube |
| CN101871864B (en) * | 2009-04-21 | 2012-07-25 | 北京清华阳光能源开发有限责任公司 | On-line detection method of anti-detonating quality of all-glass heat tube type evacuated solar collector tube and device |
| CN102538255B (en) * | 2012-01-18 | 2014-09-10 | 天普新能源科技有限公司 | Heat tube type all-glass vacuum solar collector tube |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121577A (en) * | 1994-10-24 | 1996-05-01 | 黄丽平 | All-glass thermal-pipe type vacuum heat-collecting pipe |
| CN2535722Y (en) * | 2002-02-22 | 2003-02-12 | 罗赞继 | Full-glass vacuum solar heat-collection tube with inner-tube structure |
| CN1563847A (en) * | 2004-03-18 | 2005-01-12 | 王恒月 | Anti-explosion solar all glass vacuum heat collecting tubes |
| CN2797976Y (en) * | 2005-02-06 | 2006-07-19 | 北京清华阳光能源开发有限责任公司 | Full glass heat-pipe type vacuum solar energy heat collector |
-
2005
- 2005-02-06 CN CN2005100073272A patent/CN1815102B/en active Active
-
2007
- 2007-01-30 HK HK07101065.1A patent/HK1094245A1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121577A (en) * | 1994-10-24 | 1996-05-01 | 黄丽平 | All-glass thermal-pipe type vacuum heat-collecting pipe |
| CN2535722Y (en) * | 2002-02-22 | 2003-02-12 | 罗赞继 | Full-glass vacuum solar heat-collection tube with inner-tube structure |
| CN1563847A (en) * | 2004-03-18 | 2005-01-12 | 王恒月 | Anti-explosion solar all glass vacuum heat collecting tubes |
| CN2797976Y (en) * | 2005-02-06 | 2006-07-19 | 北京清华阳光能源开发有限责任公司 | Full glass heat-pipe type vacuum solar energy heat collector |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1094245A1 (en) | 2007-03-23 |
| CN1815102A (en) | 2006-08-09 |
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Denomination of invention: Full-glass heat-pipe type vacuum solar heat-collecting pipe Effective date of registration: 20130729 Granted publication date: 20101208 Pledgee: Beijing Chenguang prosperity financing Company limited by guarantee Pledgor: Qinghua Yangguang Energy Development Co., Ltd., Beijing Registration number: 2013990000513 |
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Date of cancellation: 20140919 Granted publication date: 20101208 Pledgee: Beijing Chenguang prosperity financing Company limited by guarantee Pledgor: Qinghua Yangguang Energy Development Co., Ltd., Beijing Registration number: 2013990000513 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Full-glass heat-pipe type vacuum solar heat-collecting pipe Effective date of registration: 20140930 Granted publication date: 20101208 Pledgee: Beijing Chenguang prosperity financing Company limited by guarantee Pledgor: Qinghua Yangguang Energy Development Co., Ltd., Beijing Registration number: 2014990000828 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150113 Granted publication date: 20101208 Pledgee: Beijing Chenguang prosperity financing Company limited by guarantee Pledgor: Qinghua Yangguang Energy Development Co., Ltd., Beijing Registration number: 2014990000828 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |