CN104748403B - Solar vacuum heat-collecting pipe - Google Patents
Solar vacuum heat-collecting pipe Download PDFInfo
- Publication number
- CN104748403B CN104748403B CN201510139438.2A CN201510139438A CN104748403B CN 104748403 B CN104748403 B CN 104748403B CN 201510139438 A CN201510139438 A CN 201510139438A CN 104748403 B CN104748403 B CN 104748403B
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- glass tube
- mercury
- vacuum
- inner layer
- layer glass
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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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- Joining Of Glass To Other Materials (AREA)
- Thermal Insulation (AREA)
Abstract
The present invention provides a kind of solar vacuum heat-collecting pipe, including outer layer glass tube and inner layer glass tube, forms vacuum layer between them；Glass chamber is formed on the bottom of inner layer glass tube, is connected to the vacuum layer by duct, and be equipped with the ring sealing plate of connection internal and external layers of glass pipe in vacuum layer, the space of vacuum space and top of the duct below the port at vacuum layer is kept apart；And the upper surface of ring sealing plate is not less than the downside of the port；Mercury is equipped in glass chamber, when the temperature of mercury is less than 90% of the boiling point of liquid at normal atmospheric pressure in inner layer glass tube, the volume of mercury is less than the volume of glass chamber, and when the temperature of mercury reaches the boiling point, mercury is expanded to full of the vacuum space above glass chamber and ring sealing plate.There is the solar vacuum heat-collecting pipe superior explosion-proof performance to be also difficult to burst even if in the environment of no relief hole.
Description
Technical field
The present invention relates to solar energy equipment fields, are to be related to a kind of evacuated collector tube particularly.
Background technology
Currently, common evacuated collector tube is made of internal and external layers of glass pipe, and it is vacuum interlayer between layer glass pipe, it is inside and outside
Layer glass tube is connected with each other at nozzle, is integrally formed.Due to during by sun prolonged exposure, the water body in pipe or Jie
Matter can be persistently overheating, not in time such as pressure release, it is easy to booster phenomenon occur.In actual use, typically, if forgotten
To solar water heater watering, then booster is just extremely easy in summer.On the other hand, it in order to give evacuated collector tube pressure release, also needs
Stomata is opened up on heat-preserving equipment, due to the beginning of stomata so that heat insulation effect is affected, and makes outdoor solar energy equipment
Heat storage capacity declines to a great extent.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of solar vacuum heat-collecting pipe, the solar energy evacuated collection
There is heat pipe superior explosion-proof performance to be also difficult to burst even if in the environment of no relief hole.
The technical solution adopted by the present invention to solve the technical problems is：The solar vacuum heat-collecting pipe includes glass outer
Pipe and inner layer glass tube, vacuum layer is formed between the outer layer glass tube and inner layer glass tube；The bottom of the inner layer glass tube
A glass chamber is formed, the glass chamber is connected to the vacuum layer by duct, and is equipped with and surround in the vacuum layer
Thermal-collecting tube axis, connection outer layer glass tube and inner layer glass tube ring sealing plate, the ring sealing plate is by the duct true
The vacuum space below port at dead level keeps apart with the space above the port；And the upper surface of the ring sealing plate is not
Less than the downside of the port；Be equipped with mercury in the glass chamber, and the volume of glass chamber and the measurer of mercury have it is as follows
It is required that：When the temperature of mercury is less than 90% of the boiling point of liquid at normal atmospheric pressure in inner layer glass tube, the volume of mercury
Less than the volume of the glass chamber, and when the temperature of mercury reaches the boiling point, mercury is expanded to full of the glass cavity
Vacuum space above body and the ring sealing plate.
Preferably, the outer surface plating of the inner layer glass tube is formed with anti-reflection film and infrared reflection film.
Preferably, the glass chamber is spherical in shape, the lower end of the inner cavity that is filled with water of the inner layer glass tube is also spherical in shape；Institute
It states glass chamber and is linked by vitreum between the inner cavity that is filled with water, the duct is opened in the vitreum.
Preferably, the ring sealing plate is integrally formed with the outer layer glass tube, inner layer glass tube.
The beneficial effects of the present invention are：The solar vacuum heat-collecting pipe is during thermal-arrest, due to the glass chamber
It is made in inner layer glass tube, so the fluid temperature in the temperature and inner layer glass tube in glass chamber is almost the same；When interior
In 90% or less boiling temperature, mercury is merely retained in glass chamber fluid temperature in layer glass tube, and thermal-collecting tube reliably collects
Heat；And when liquid in pipe temperature is close to boiling point, then mercury expanded by heating, is gradually filled with most vacuum layer, this aspect
Cause the illumination of extraneous directive thermal-collecting tube fully reflective by the mercury in vacuum layer, inner layer glass is on the other hand made by mercury layer
Good heat transfer is formed between pipe, outer layer glass tube, heat is rapidly scattered to the external world, to make the liquid in pipe reach always
Less than boiling point, even if being not provided with relief hole, it is also possible to prevent booster.
Description of the drawings
Fig. 1 is one embodiment schematic diagram of this solar vacuum heat-collecting pipe.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples：
In the embodiment shown in fig. 1, which includes outer layer glass tube 1 and inner layer glass tube 2, institute
State formation vacuum layer 3 between outer layer glass tube 1 and inner layer glass tube 2；Cavity there are two tools in the inner layer glass tube 2, one
It is the columnar inner cavity 20 that is filled with water, the other is 20 lower section of inner cavity, 2 bottom of the inner layer glass tube glass chamber 21 that is filled with water；It is described
Glass chamber 21 is spherical in shape, and the lower end of the inner cavity 20 that is filled with water of the inner layer glass tube 2 is also spherical in shape；The glass chamber 21 and Sheng
Linked by vitreum 22 between water inner cavity 20.
The glass chamber 20 is connected to the vacuum layer 3 by the duct 220 being opened in vitreum 22, and described true
The ring sealing plate 4 of connection outer layer glass tube 1 and inner layer glass tube 2 of around thermal-collecting tube axis, the annular are equipped in dead level 3
Sealing plate 4 keeps apart vacuum space of the duct 220 below the port at vacuum layer 3 with the space above the port；
And the upper surface of the ring sealing plate is not less than the downside of the port；To make the water in the vacuum space above the port
Silver can only flow into glass chamber 21.
Mercury is equipped in the glass chamber 21, and the volume of glass chamber 21 and the measurer of mercury have following requirement：
When the temperature of mercury is less than 90% of the boiling point of liquid at normal atmospheric pressure in inner layer glass tube 2, the volume of mercury is less than institute
The volume of glass chamber 21 is stated, and when the temperature of mercury reaches the boiling point, mercury is expanded to full of the glass chamber 21
And the vacuum space of 4 top of ring sealing plate.It is specific to calculate as follows：If boiling temperature is T（It is known）, and mercury
When temperature reaches the 90% of boiling temperature, volume is exactly the volume V0 of glass chamber 21（It waits asking）, then set the ring sealing plate 4
The volume of the vacuum space of top is V1（It is known）, since mercury volume and temperature are proportional, so relational expression can be obtained：T/
（0.9T）=（V0+V1）/ V0, to obtain the volume V0 of the glass chamber 21.
Above-mentioned solar vacuum heat-collecting pipe is during thermal-arrest, since the glass chamber 21 is made in inner layer glass tube 2
In, so the temperature in glass chamber 21 and the fluid temperature in inner layer glass tube 2 are almost the same；When in inner layer glass tube 2
In 90% or less boiling temperature, mercury is merely retained in glass chamber 21 fluid temperature, thermal-collecting tube reliable heat collection；And when pipe
When interior fluid temperature is close to boiling point, then mercury expanded by heating, is gradually filled with most vacuum layer 3, this aspect leads to the external world
The illumination of directive thermal-collecting tube is fully reflective by the mercury in vacuum layer 3, on the other hand makes inner layer glass tube 2, outer by mercury layer
Good heat transfer is formed between layer glass tube 1, heat is rapidly scattered to the external world, to make the liquid in pipe be not achieved always
Boiling point is also possible to prevent booster even if being not provided with relief hole.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, made by any modification, equivalent replacement, should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of solar vacuum heat-collecting pipe, including outer layer glass tube（1）And inner layer glass tube（2）, the outer layer glass tube（1）
With inner layer glass tube（2）Between form vacuum layer（3）；It is characterized in that：The inner layer glass tube（2）Bottom formed a glass
Glass cavity（21）, the glass chamber（21）Pass through duct（220）It is connected to the vacuum layer（3）, and the vacuum layer（3）It is interior
Equipped with around thermal-collecting tube axis, connection outer layer glass tube（1）And inner layer glass tube（2）Ring sealing plate（4）, the annular envelope
Plate（4）By the duct（220）In vacuum layer（3）Vacuum space below the port at place is isolated with the space above the port
It opens；And the ring sealing plate（4）Upper surface be not less than the port downside；The glass chamber（21）It is interior to be equipped with mercury,
And glass chamber（21）Volume and the measurer of mercury have following requirement：It is less than inner layer glass tube in the temperature of mercury（2）Interior
The boiling point of liquid at normal atmospheric pressure 90% when, the volume of mercury is less than the glass chamber（21）Volume, and in mercury
Temperature when reaching the boiling point, mercury is expanded to full of the glass chamber（21）And the ring sealing plate（4）Top
Vacuum space.
2. solar vacuum heat-collecting pipe according to claim 1, it is characterised in that：The inner layer glass tube（2）Appearance
Face plating is formed with anti-reflection film and infrared reflection film.
3. solar vacuum heat-collecting pipe according to claim 1, it is characterised in that：The ring sealing plate（4）Outside described
Layer glass tube（1）, inner layer glass tube（2）It is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139438.2A CN104748403B (en) | 2015-03-28 | 2015-03-28 | Solar vacuum heat-collecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139438.2A CN104748403B (en) | 2015-03-28 | 2015-03-28 | Solar vacuum heat-collecting pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104748403A CN104748403A (en) | 2015-07-01 |
| CN104748403B true CN104748403B (en) | 2018-08-21 |
Family
ID=53588471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510139438.2A Active CN104748403B (en) | 2015-03-28 | 2015-03-28 | Solar vacuum heat-collecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104748403B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048544A (en) * | 2015-07-10 | 2015-11-11 | 苏州硅果电子有限公司 | Self-temperature adjustment solar mobile power source |
| CN111536704A (en) * | 2020-05-28 | 2020-08-14 | 吴朋伟 | Empty sunning prevention system of solar water heater |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5912253A (en) * | 1982-07-13 | 1984-01-21 | Sanyo Electric Co Ltd | Solar heat collector |
| JPH06185813A (en) * | 1992-12-14 | 1994-07-08 | Nippon Electric Glass Co Ltd | Solar heat collector |
| DE10002929A1 (en) * | 2000-01-25 | 2001-07-26 | Friedrich Roth | Solar energy collector tube has double-wall and transparent vacuum tube with braiding to absorb heat from solar rays and control valve to ensure carrier gas is sufficiently hot on entering hot gas tube |
| CN1828175A (en) * | 2006-04-07 | 2006-09-06 | 杨天敏 | Solar energy water heater heat-collecting vacuum pipe for increasing illuminating area and reducing heat loss |
| CN101629763B (en) * | 2009-07-31 | 2011-02-02 | 艾欧史密斯(中国)热水器有限公司 | Anti-burst solar heat collecting tube |
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2015
- 2015-03-28 CN CN201510139438.2A patent/CN104748403B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104748403A (en) | 2015-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gu Yunhui Inventor after: Gu Yuntong Inventor after: Gu Yufeng Inventor before: Gu Yufeng |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180712 Address after: 237000 room 105, building 12, Singapore Yuyuan, Lu'an economic and Technological Development Zone, Anhui Applicant after: Lu'an glory innovation Intelligent Technology Co., Ltd. Address before: 210000 No. 186 Software Avenue, Yuhuatai District, Nanjing, Jiangsu Province Applicant before: Gu Yufeng |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |