CN206817798U - A kind of high-efficiency full-glass vacuum pipe for strengthening axial free convection - Google Patents
A kind of high-efficiency full-glass vacuum pipe for strengthening axial free convection Download PDFInfo
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- CN206817798U CN206817798U CN201720594134.XU CN201720594134U CN206817798U CN 206817798 U CN206817798 U CN 206817798U CN 201720594134 U CN201720594134 U CN 201720594134U CN 206817798 U CN206817798 U CN 206817798U
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- deflector
- glass
- glass vacuum
- tube
- flank
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Abstract
A kind of high-efficiency full-glass vacuum pipe for strengthening axial free convection is the utility model is related to, including：All-glass vacuum tube, deflector；Wherein all-glass vacuum tube includes：Outer glass tube, glass inner tube, coating for selective absorption, vacuum interlayer, getter, breathing film, spring clip；Deflector includes：Deflector transverse slat, deflector flank one, deflector flank two.The high-efficiency full-glass vacuum pipe is without additional movements part; deflector only need to be inserted in the inner tube of the all-glass vacuum tube of existing national standard large-scale production; suppress advection heat exchange while axial heat convection can be strengthened; improve the photothermal conversion efficiency of existing all-glass vacuum tube; so as to improve the efficiency of solar water heating system; it is easy to operation and production cost is low.
Description
Technical field
A kind of high efficiency solar all-glass vacuum tube is the utility model is related to, it is more particularly to a kind of with enhancing axial direction
Heat transfer free convection and the high-efficiency full-glass vacuum pipe for suppressing the deflector of advection heat exchange simultaneously.Belong to solar thermal utilization
Field.
Background technology
At present, full glass vacuum tube solar water heater has been applied to the production and living of people in China on a large scale,
As the main product of solar water heating system.Such all-glass vacuum tube is typically by the different clear glass outer tube of diameter and outside
Absorber coatings glass inner tube composition is coated with wall；One end of glass inner tube seals with transparent outer tube high temperature ring-type, then by glass
The outside of the other end of pipe vacuumizes with clear glass outer tube again after mixing the metallic support with getter, then inside and outside glass
Pipe sealing forms.Because being vacuum state outside outer glass tube and inner tube, preferably the solar heat that inner tube absorbs can be passed to interior
The water in portion, and its production cost is relatively low, it is simple and easy to be assembled into solar water heating system, thus production application on a large scale.But
The all-glass vacuum tube of such single-ended opening, hot water outlet simultaneously and low-temperature cold water entrance, if strengthen axial heat convection and
Suppress advection heat exchange, strengthen the heat convection between hot water and suppress the heat convection between hot water and cold water, its light can be improved
Thermal transition efficiency.
In view of this, it is necessory to provide a kind of new and effective all-glass vacuum tube, the all-glass vacuum tube is without extra
Moving component, it is only necessary to insert deflector in the inner tube of the all-glass vacuum tube of existing national standard large-scale production, the deflector energy
Suppress radial direction heat transfer free convection while enough strengthening axial heat transfer free convection, and test prove to improve existing glass entirely it is true
The photothermal conversion efficiency of blank pipe, so as to improve the efficiency of solar water heating system.
The content of the invention
The purpose of this utility model is：A kind of high-efficiency full-glass vacuum pipe for strengthening axial free convection is provided, this is complete
Glass-vacuum tube is without additional movements part, it is only necessary to is inserted in the inner tube of the all-glass vacuum tube of existing national standard large-scale production
Deflector, the deflector suppress radial direction heat transfer free convection while can strengthening axial heat transfer free convection, it is intended to improve existing
There is the photothermal conversion efficiency of all-glass vacuum tube, so as to improve the efficiency of solar water heating system.
The utility model technology solves problem：A kind of high-efficiency full-glass vacuum pipe for strengthening axial free convection is provided.
The utility model technical solution, strengthen the high-efficiency full-glass vacuum pipe of axial free convection, including：Full glass
Vacuum tube, deflector；The all-glass vacuum tube includes：Outer glass tube, glass inner tube, coating for selective absorption, vacuum interlayer,
Getter, breathing film, spring clip；The deflector includes：Deflector transverse slat, deflector flank one, deflector flank two.Institute
Deflector is stated to be placed in inside all-glass vacuum tube；After the all-glass vacuum tube places deflector, internal water is separated into I,
IIth, III, IV 4 part, wherein I, II, III inside is higher temperature hot water, IV inside is low-temperature cold water.
The deflector transverse slat, deflector flank one, deflector flank two are metal material, are welded as a whole and form.
The deflector transverse slat is the rectangular metal plate with V-type fold, and deflector flank one, deflector flank two are
Rectangular metal plate.
The length and width of the deflector transverse slat are respectively the length of the inner tube cylindrical portion of all-glass vacuum tube and full glass
The diameter of vacuum tube, deflector flank one, deflector flank two are two block size identical metallic plates, and length and width are respectively full glass
The length of inner tube cylindrical portion and the radius of all-glass vacuum tube of vacuum tube.
Beneficial effect caused by the utility model is compared with prior art：
1. the high-efficiency full-glass vacuum pipe is without additional movements part, it is only necessary in the full glass of existing national standard large-scale production
Deflector is inserted in the inner tube of vacuum tube, it is easy to operation, and production cost is low.
2. the high-efficiency full-glass vacuum pipe, can strengthen all-glass vacuum tube internal water axial heat transfer free convection it is same
When suppress radial direction heat transfer free convection, the photothermal conversion efficiency of existing all-glass vacuum tube is improved, so as to improve solar water
The efficiency of system.
Brief description of the drawings
The utility model is described in further details below in conjunction with the accompanying drawings：
Fig. 1 is the high-efficiency full-glass vacuum tubular construction schematic diagram that the utility model strengthens axial free convection
Fig. 2 is the high-efficiency full-glass vacuum pipe cross-sectional view that the utility model strengthens axial free convection
In figure：1- outer glass tubes；2- glass inner tubes；3- coating for selective absorption；4- vacuum interlayers；5- getters；6- inhales
Air film；7- spring clipes；8- deflector transverse slats；9- deflectors flank one；10- deflectors flank two
Embodiment
Content of the present utility model is described in further details with reference to the accompanying drawings and detailed description, but this practicality
New embodiment is not limited to that.
Referring now to Fig. 1 to Fig. 2, it is the high-efficiency full-glass vacuum tubular construction that the utility model strengthens axial free convection
And cross-sectional view, including：All-glass vacuum tube, deflector；The all-glass vacuum tube includes：Outer glass tube（1）, glass
Inner tube（2）, coating for selective absorption（3）, vacuum interlayer（4）, getter（5）, breathing film（6）, spring clip（7）；It is described to lead
Flowing plate includes：Deflector transverse slat（8）, deflector flank one（9）, deflector flank two（10）；The deflector is placed in full glass
Inside vacuum tube；After the all-glass vacuum tube places deflector, internal water is separated into I, II, III, IV part, wherein
Ith, II, III inside is higher temperature hot water, and IV inside is low-temperature cold water.
The deflector transverse slat（8）, deflector flank one（9）, deflector flank two（10）It is metal material, is welded as
Integrally form.
The deflector transverse slat（8）For the rectangular metal plate with V-type fold, deflector flank one（9）, deflector flank
Two（10）It is rectangular metal plate.
The deflector transverse slat（8）Length and width be respectively all-glass vacuum tube glass inner tube（2）The length of cylindrical portion
The glass inner tube of degree and all-glass vacuum tube（2）Diameter, deflector flank one, deflector flank two are two block size identicals
Metallic plate, length and width are respectively the glass inner tube of all-glass vacuum tube（2）The length of cylindrical portion and the glass of all-glass vacuum tube
Glass inner tube（2）Radius.
The utility model, which will be further illustrated, below by specific embodiment strengthens the high-efficiency full-glass of axial free convection
Vacuum tube：
The high-efficiency full-glass vacuum pipe that the utility model is strengthened to axial free convection is used for too by existing application and technology
Positive energy hot-water heating system, strengthen the high-efficiency full-glass vacuum pipe cross-sectional view of axial free convection with the utility model of accompanying drawing 2
Upper right side for the morning sun rise when sunshine incident direction exemplified by.Morning, when sunshine is radiated at the high-efficiency full-glass
When on vacuum tube, the solar thermal energy being absorbed to is passed to its internal heat accumulation work by the glass inner tube of the high-efficiency full-glass vacuum pipe
Matter water, now, the water inside I, III are heated at first, and because hot water density is small and cold water density is big, the higher heat of temperature
The axial constantly heat convection of water, temperature more and more higher, rises in heat storage water tank, the high-efficiency full-glass is sunken under cold water is continuous
In the bottom IV of vacuum tube, simultaneously because the barrier of deflector transverse slat and deflector flank two, makes I, III internal temperature higher
The advection of hot water and the low-temperature cold water in the high-efficiency full-glass vacuum bottom of the tube IV weakens, so that axially naturally right
Stream heat exchange strengthens and suppresses radial direction heat transfer free convection simultaneously, so as to improve the efficiency of the high-efficiency full-glass vacuum pipe.With
The sun is progressively raised up to west and fallen, and the higher hot water of the temperature inside I, II, III in the high-efficiency full-glass vacuum pipe is constantly carried out
Axial heat transfer free convection, and due to the barrier of deflector, it is suppressed that inside the higher hot water and IV of temperature inside I, II, III
Low-temperature cold water between heat transfer free convection, so as to improve the efficiency of the high-efficiency full-glass vacuum pipe, make using this is efficient
The efficiency of the hot-water heating system of all-glass vacuum tube is improved.
Claims (4)
1. a kind of high-efficiency full-glass vacuum pipe for strengthening axial free convection, including：All-glass vacuum tube, deflector；It is described complete
Glass-vacuum tube includes：Outer glass tube, glass inner tube, coating for selective absorption, vacuum interlayer, getter, breathing film, Spring Card
Son；The deflector includes：Deflector transverse slat, deflector flank one, deflector flank two.It is true that the deflector is placed in full glass
Inside blank pipe；After the all-glass vacuum tube places deflector, internal water is separated into I, II, III, IV part, wherein I,
IIth, III inside is higher temperature hot water, and IV inside is low-temperature cold water.
A kind of 2. high-efficiency full-glass vacuum pipe for strengthening axial free convection according to claim 1, it is characterised in that：Institute
It is metal material to state deflector transverse slat, deflector flank one, deflector flank two, is welded as a whole and forms.
A kind of 3. high-efficiency full-glass vacuum pipe for strengthening axial free convection according to claim 1, it is characterised in that：Institute
State deflector transverse slat is the rectangular metal plate with V-type fold, and deflector flank one, deflector flank two are rectangular metal
Plate.
A kind of 4. high-efficiency full-glass vacuum pipe for strengthening axial free convection according to claim 1, it is characterised in that：Institute
The length and width for stating deflector transverse slat be respectively the inner tube cylindrical portion of all-glass vacuum tube length and all-glass vacuum tube it is straight
Footpath, deflector flank one, deflector flank two are two block size identical metallic plates, and length and width are respectively the interior of all-glass vacuum tube
The length of pipe cylindrical portion and the radius of all-glass vacuum tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594134.XU CN206817798U (en) | 2017-05-25 | 2017-05-25 | A kind of high-efficiency full-glass vacuum pipe for strengthening axial free convection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594134.XU CN206817798U (en) | 2017-05-25 | 2017-05-25 | A kind of high-efficiency full-glass vacuum pipe for strengthening axial free convection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206817798U true CN206817798U (en) | 2017-12-29 |
Family
ID=60757012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720594134.XU Expired - Fee Related CN206817798U (en) | 2017-05-25 | 2017-05-25 | A kind of high-efficiency full-glass vacuum pipe for strengthening axial free convection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206817798U (en) |
-
2017
- 2017-05-25 CN CN201720594134.XU patent/CN206817798U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20180525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |