CN108302784B - A kind of bionic micropore surfactant foam metal filling solar vacuum heat-collecting pipe - Google Patents
A kind of bionic micropore surfactant foam metal filling solar vacuum heat-collecting pipe Download PDFInfo
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- CN108302784B CN108302784B CN201810004226.7A CN201810004226A CN108302784B CN 108302784 B CN108302784 B CN 108302784B CN 201810004226 A CN201810004226 A CN 201810004226A CN 108302784 B CN108302784 B CN 108302784B
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- tube
- bionic micropore
- bionic
- inner tube
- metal inner
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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
The invention discloses a kind of bionic micropore surfactant foam metals to fill solar vacuum heat-collecting pipe, the evacuated collector tube is nested with outer glass tube (1) and bionic micropore surface metal inner tube (2), outer glass tube (1) upper end opening, and to being connected to alloy short tube (6)；Bionic micropore surface metal inner tube (2) upper end opening, and metal ring lid (5) are fixedly connected with along the outer surface of its open end, metal ring lid (5) extension is fixedly connected with alloy short tube (6), is nested between outer glass tube (1) and bionic micropore surface metal inner tube (2) in evacuated collector tube and is formed vacuum；In the outer application coating for selective absorption (3) of bionic micropore surface metal inner tube (2) tube wall, foam metal filled body (4) is inserted into inside bionic micropore surface metal inner tube (2).Evacuated collector tube raising solar energy utilization ratio, pressure-bearing effect are good, and can enhance internal heat reduces heat loss, effectively improve solar water heater efficiency.
Description
Technical field
The present invention relates to a kind of bionic micropore surfactant foam metals to fill solar vacuum heat-collecting pipe, belongs to renewable energy
Utilize technical field.
Background technique
In renewable energy, solar energy resources have very big potentiality.Solar thermal collector is to convert solar radiant energy
For the component of thermal energy, solar thermal collector is broadly divided into vacuum tube solar heating element and flat-plate solar collector.Vacuum tube
Solar thermal collector heat-proof quality is good, but not pressure-bearing and caliber causes greatly internal heat transfer thermal resistance larger；Flat panel solar heat collecting
Pressure-bearing and beauty, but top convection heat losses are larger.Either vacuum tube solar heating element or flat panel solar heat collecting
Device, collecting efficiency is generally lower, and the efficiency for further increasing solar thermal collector is the critical issue of application of solar energy, therefore should
Invention has broad prospect of application.
Summary of the invention
Technical problem: it is solar energy evacuated that the purpose of the technology of this hair is to provide a kind of bionic micropore surfactant foam metal filling
Solar radiative absorption ability can be improved in thermal-collecting tube, the thermal-collecting tube, can pressure-bearing, be conducive to architecture-integral, and effectively reduce inside
Heat transfer resistance, enhances intraductal heat exchange, and simultaneity factor safety, reliability improve.
Technical solution:
The present invention provides a kind of bionic micropore surfactant foam metals to fill solar vacuum heat-collecting pipe, the evacuated collector tube
Be nested with outer glass tube and bionic micropore surface metal inner tube, the outer glass tube upper end opening, and open end to be connected to close
Golden short tube, the bionic micropore surface metal upper end of inner tube opening, the appearance along bionic micropore surface metal inner tube open end
Face is fixedly connected with metal ring lid, and the metal ring lid extension is fixedly connected with the alloy short tube, in vacuum heat-collecting
Pipe is nested on the inside of outer glass tube tube wall and forms vacuum between the outside of bionic micropore surface metal inner pipe wall；Bionical micro-
The outer application coating for selective absorption of hole surface metal inner pipe tube wall is inserted into foam in bionic micropore surface metal internal tube
Metal filling body.
Wherein:
Spring support, and the spring support position are provided between the outer glass tube and bionic micropore surface metal inner tube
Between the bottom of outer glass tube and the bottom of bionic micropore surface metal inner tube.
The evacuated collector tube is nested with the bionic micropore surface metal inner tube pipe on the inside of outer glass tube tube wall and described
Getter is filled between the outside of wall.The outer glass tube bottom outside is provided with protective cap.
The bionic micropore of the bionic micropore surface metal inner tube exists only in bionic micropore surface metal inner pipe wall
Outer surface, and micropore is vertical with the surface of bionic micropore surface metal inner tube, the size of the micropore is in the micron-scale or millimeter
Grade, the void density PPI of the micropore are 20~2500.
The open end is melting welding to the mode docked in alloy short tube is connected to.
The outer surface in bionic micropore surface metal inner tube open end is fixedly connected with metal ring lid, fixed to connect
The mode connect is welding.
The metal ring lid extension is fixedly connected with the alloy short tube, and the mode being fixedly connected is welding.
The foam metal filled body selects Open-cell Aluminum Foam or open celled foam copper.
The alloy short tube is consistent with the coefficient of expansion of the outer glass tube.
The coating for selective absorption is under the conditions of AM1.5, solar absorptance α >=0.86 (AM1.5)；It is 80 DEG C in temperature
Under the conditions of ± 5 DEG C, the hemisphere transmitting ratio ε of coating for selective absorptionh≤0.080。
The utility model has the advantages that
Compared with prior art, the present invention has the advantage that
1, the bionic micropore surface of bionic micropore surface metal inner tube can multiple reflections absorb all angles solar radiation,
Improve solar energy utilization ratio；
2, foam metal filled body quickly exchanges heat with interior water is managed, and can enhance internal heat reduces resistance, permeates heat rapidly
To heat collector, pipe surface temperature is reduced, reduces radiation heat loss；
3, the heat collector pressure-bearing effect is good, and using metal inner pipe, when single vacuum tube glass is damaged, it is other not influence system
Part works, and security of system, reliability improve.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of bionic micropore surfactant foam metal filling solar vacuum heat-collecting pipe of the invention；
Wherein: 1- outer glass tube, 2- bionic micropore surface metal inner tube, 3- coating for selective absorption, 4- foam metal are filled out
Fill body, 5- metal ring lid, 6- alloy short tube, 7- spring support, 8- getter, 9- protective cap.
Specific embodiment
In bionic micropore surfactant foam metal filling solar vacuum heat-collecting pipe of the invention, in bionic micropore surface metal
The outer surface micropore dense arrangement of pipe 2, hole is vertical with surface, and pore size in the micron-scale or grade, can absorb each angle
The solar radiation of degree, temperature rises when bionic micropore surface metal inner tube 2 absorbs solar radiation, and foam metal filled body 4 absorbs
Thermal temperature rises, and the water and bionic micropore surface metal inner tube 2 and foam metal filled body 4 in solar vacuum heat-collecting pipe are right
Stream exchanges heat and heats up, while being vacuum between outer glass tube 1 and bionic micropore surface metal inner tube 2, reduces heat loss, the invention
With pressure-bearing property, and greater efficiency is still kept when solar radiation angle is lower, the present invention is made with reference to the accompanying drawing detailed
Illustrate:
Embodiment 1
As shown in Figure 1, a kind of bionic micropore surfactant foam metal fills solar vacuum heat-collecting pipe, the evacuated collector tube is embedding
It is cased with outer glass tube 1 and bionic micropore surface metal inner tube 2,1 upper end opening of outer glass tube, and open end melting welding has conjunction
Golden short tube 6,2 upper end opening of bionic micropore surface metal inner tube, along the outer of 2 open end of bionic micropore surface metal inner tube
Surface is welded with metal ring lid 5, and 5 extension of metal ring lid and the alloy short tube 6 weld, embedding in evacuated collector tube
It is cased on the inside of 1 tube wall of outer glass tube and forms vacuum between the outside of 2 tube wall of bionic micropore surface metal inner tube；In bionic micropore
The outer application coating for selective absorption 3 of 2 tube wall of surface metal inner tube is inserted into bubble inside bionic micropore surface metal inner tube 2
Foam metal filling body 4 (hole foamed aluminium or open celled foam copper)；
Spring support 7 is provided between the bottom of outer glass tube 1 and the bottom of bionic micropore surface metal inner tube 2；
The outside on the inside of 1 tube wall of outer glass tube with 2 tube wall of bionic micropore surface metal inner tube is nested in evacuated collector tube
Between be filled with getter 8；
The coating for selective absorption 3 is under the conditions of AM1.5, solar absorptance α >=0.86 (AM1.5)；It is 80 in temperature
Under the conditions of DEG C ± 5 DEG C, the hemisphere transmitting ratio ε of coating for selective absorption 3h≤0.080；
1 bottom outside of outer glass tube is provided with protective cap 9；
The bionic micropore of bionic micropore surface metal inner tube 2 exists only in the outer of 2 tube wall of bionic micropore surface metal inner tube
Surface, and micropore is vertical with the surface of bionic micropore surface metal inner tube 2, the size of the micropore is in the micron-scale or millimeter
Grade, the void density PPI of the micropore are 20~2500.
Claims (10)
1. a kind of bionic micropore surfactant foam metal fills solar vacuum heat-collecting pipe, it is characterised in that: the evacuated collector tube is embedding
It is cased with outer glass tube (1) and bionic micropore surface metal inner tube (2), the outer glass tube (1) upper end opening, and open end pair
It is connected to alloy short tube (6), described bionic micropore surface metal inner tube (2) upper end opening, along bionic micropore surface metal inner tube
(2) outer surface of open end is fixedly connected with metal ring lid (5), and metal ring lid (5) extension and the alloy are short
Pipe (6) is fixedly connected, and is nested on the inside of outer glass tube (1) tube wall and bionic micropore surface metal inner tube (2) in evacuated collector tube
Vacuum is formed between the outside of tube wall；In the outer application coating for selective absorption of bionic micropore surface metal inner tube (2) tube wall
(3), foam metal filled body (4) is inserted into inside bionic micropore surface metal inner tube (2).
2. a kind of bionic micropore surfactant foam metal as described in claim 1 fills solar vacuum heat-collecting pipe, feature exists
In: it is provided with spring support (7) between the outer glass tube (1) and bionic micropore surface metal inner tube (2), and the spring branch
Frame (7) is located between the bottom of outer glass tube (1) and the bottom of bionic micropore surface metal inner tube (2).
3. a kind of bionic micropore surfactant foam metal as described in claim 1 fills solar vacuum heat-collecting pipe, feature exists
In: the evacuated collector tube is nested on the inside of outer glass tube (1) tube wall and manages with the bionic micropore surface metal inner tube (2)
Getter (8) are filled between the outside of wall.
4. a kind of bionic micropore surfactant foam metal as described in claim 1 fills solar vacuum heat-collecting pipe, feature exists
In: described outer glass tube (1) bottom outside is provided with protective cap (9).
5. a kind of bionic micropore surfactant foam metal as described in claim 1 fills solar vacuum heat-collecting pipe, feature exists
In: the bionic micropore of the bionic micropore surface metal inner tube (2) exists only in bionic micropore surface metal inner tube (2) tube wall
Outer surface, and micropore is vertical with the surface of bionic micropore surface metal inner tube (2), the size of the micropore is in the micron-scale or millimeter
Grade, the void density PPI of the micropore are 20~2500.
6. a kind of bionic micropore surfactant foam metal as described in claim 1 fills solar vacuum heat-collecting pipe, feature exists
In: the open end is melting welding to the mode docked in alloy short tube (6) is connected to.
7. a kind of bionic micropore surfactant foam metal as described in claim 1 fills solar vacuum heat-collecting pipe, feature exists
In: the outer surface in bionic micropore surface metal inner tube (2) open end is fixedly connected with metal ring lid (5), fixed
The mode of connection is welding；Metal ring lid (5) extension is fixedly connected with the alloy short tube (6), is fixedly connected
Mode is welding.
8. a kind of bionic micropore surfactant foam metal as described in claim 1 fills solar vacuum heat-collecting pipe, feature exists
In: the foam metal filled body (4) selects Open-cell Aluminum Foam or open celled foam copper.
9. a kind of bionic micropore surfactant foam metal as described in claim 1 fills solar vacuum heat-collecting pipe, feature exists
In: the alloy short tube (6) is consistent with the coefficient of expansion of the outer glass tube (1).
10. a kind of bionic micropore surfactant foam metal as described in claim 1 fills solar vacuum heat-collecting pipe, feature exists
In: the coating for selective absorption (3) is under the conditions of AM1.5, solar absorptance α >=0.86 (AM1.5)；Temperature be 80 DEG C ±
Under the conditions of 5 DEG C, the hemisphere transmitting ratio ε of coating for selective absorption (3)h≤0.080。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810004226.7A CN108302784B (en) | 2018-01-03 | 2018-01-03 | A kind of bionic micropore surfactant foam metal filling solar vacuum heat-collecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810004226.7A CN108302784B (en) | 2018-01-03 | 2018-01-03 | A kind of bionic micropore surfactant foam metal filling solar vacuum heat-collecting pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108302784A CN108302784A (en) | 2018-07-20 |
| CN108302784B true CN108302784B (en) | 2019-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810004226.7A Active CN108302784B (en) | 2018-01-03 | 2018-01-03 | A kind of bionic micropore surfactant foam metal filling solar vacuum heat-collecting pipe |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57182051A (en) * | 1981-05-02 | 1982-11-09 | Matsushita Electric Ind Co Ltd | Vacuum pipe type solar heat collector |
| CN1121577A (en) * | 1994-10-24 | 1996-05-01 | 黄丽平 | All-glass thermal-pipe type vacuum heat-collecting pipe |
| CN201392115Y (en) * | 2009-03-17 | 2010-01-27 | 铜联商务咨询（上海）有限公司 | Double-pipe high-efficiency foam metal heat exchanger |
| CN102538249A (en) * | 2010-12-14 | 2012-07-04 | 王炳祥 | Solar heat collecting tube with internally-mounted microporous heat-absorbing meshed tube |
| CN104373758A (en) * | 2014-10-31 | 2015-02-25 | 东南大学 | Solar heat preservation structure used for cross-season heat storage technology |
| CN106091415A (en) * | 2016-08-04 | 2016-11-09 | 福建工程学院 | A kind of air vacuum tube solar thermal collector |
-
2018
- 2018-01-03 CN CN201810004226.7A patent/CN108302784B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57182051A (en) * | 1981-05-02 | 1982-11-09 | Matsushita Electric Ind Co Ltd | Vacuum pipe type solar heat collector |
| CN1121577A (en) * | 1994-10-24 | 1996-05-01 | 黄丽平 | All-glass thermal-pipe type vacuum heat-collecting pipe |
| CN201392115Y (en) * | 2009-03-17 | 2010-01-27 | 铜联商务咨询（上海）有限公司 | Double-pipe high-efficiency foam metal heat exchanger |
| CN102538249A (en) * | 2010-12-14 | 2012-07-04 | 王炳祥 | Solar heat collecting tube with internally-mounted microporous heat-absorbing meshed tube |
| CN104373758A (en) * | 2014-10-31 | 2015-02-25 | 东南大学 | Solar heat preservation structure used for cross-season heat storage technology |
| CN106091415A (en) * | 2016-08-04 | 2016-11-09 | 福建工程学院 | A kind of air vacuum tube solar thermal collector |
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| Publication number | Publication date |
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| CN108302784A (en) | 2018-07-20 |
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