CN204494878U - Optically focused high efficiency vacuum heat collection tube in eccentric - Google Patents
Optically focused high efficiency vacuum heat collection tube in eccentric Download PDFInfo
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- CN204494878U CN204494878U CN201520146307.2U CN201520146307U CN204494878U CN 204494878 U CN204494878 U CN 204494878U CN 201520146307 U CN201520146307 U CN 201520146307U CN 204494878 U CN204494878 U CN 204494878U
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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
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Abstract
The utility model provides a kind of eccentric interior optically focused high efficiency vacuum heat collection tube, and thermal-collecting tube comprises pipe (2) and high-effective concentration mirror (3) in outer glass enclosure tube (1), metal heat absorption; Pipe (2) coaxial inside being arranged at outer glass enclosure tube (1) in metal heat absorption, and, the axle center of the outer glass enclosure tube (1) of the axis deviation of pipe (2) in metal heat absorption; High-effective concentration mirror (3) is arranged in the cavity formed between pipe (2) in outer glass enclosure tube (1) and metal heat absorption.Sunlight passes through the reflection of compound parabolic face condenser, in the light receiving incidence within half-angle all delivers to outer glass enclosure tube eccentric position metal heat absorption with the form of reflection on pipe, for the input of raising luminous energy provides theoretical foundation.By compound parabolic face condenser, in eccentric metal heat absorption, pipe not only can receive direct light, also receives a part of scattered light, effectively increases photo-thermal conversion efficiency, improves solar energy utilization ratio.
Description
Technical field
The utility model belongs to thermal-collecting tube heat collection technology field, is specifically related to a kind of eccentric interior optically focused high efficiency vacuum heat collection tube.
Background technology
Solar energy is a kind of green regenerative energy sources, and the efficiency utilization of solar energy makes human society enter the epoch of an economize energy decreasing pollution.According to statistics in 2013, China's solar water heater total output was 6,600 ten thousand m
2, account for more than 80% of the world; Recoverable amount 31,000 ten thousand m
2, account for more than 60% of the world.But solar thermal utilization is still based on low-grade utility at present, is mainly used in the heating of bath water, few part is used for low temperature drying field.The industrial utilization of warm energy in research solar energy, in exploitation solar energy, warm thermal-arrest product is the needs of economic society and technical development, is very important.
At solar energy heat utilization field, heat collector can be divided into non-concentrating type heat collector and focus solar collector, thus correspond to the light-focusing type vacuum heat collection pipe different with two kinds, non-concentrating type.
The average of the whole year heat-collecting temperature of common non-concentrating type solar thermal collector, mostly at about 50 DEG C, is all that accumulation of heat uses, general satisfaction bathing and part domestic hot-water demand.And because industrial heat scope is substantially at 80 DEG C ~ 250 DEG C, therefore, conventional non-concentrating type solar thermal collector is difficult to meet industrial heat demand.
Focus solar collector, owing to effectively can improve heat-collecting temperature and the heat accumulation temperature of solar thermal collection system, than the industrial heat requirement being easier to satisfied less than 250 DEG C.
Focus solar collector is divided into again outer focus solar collector and interior focus solar collector two kinds: (1) outer focus solar collector: the solar panel of outer focus solar collector is exposed in air, easy dust stratification and oxidation, concentration ratio is declined, there is certain use limitation; In addition, outer focus solar collector must be equipped with solar energy tracking device, thus adds heat collector cost.(2) interior focus solar collector: interior focus solar collector solar panel part is placed in the heat collector that the inner instead of simple burst of vacuum heat collection pipe is exposed to air, but, interior focus solar collector in the market exists that rim ray utilization rate is low, lighting angle is little, focus on the various shortcomings such as little, still has certain use limitation.
Therefore, design that a kind of collecting efficiency is high, cost is low and the simple vacuum heat collection pipe of structure, significant.
Utility model content
For the defect that prior art exists, the utility model provides a kind of eccentric interior optically focused high efficiency vacuum heat collection tube, can effectively solve the problem.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of eccentric interior optically focused high efficiency vacuum heat collection tube, comprising: pipe (2) and high-effective concentration mirror (3) in the heat absorption of outer glass enclosure tube (1), metal;
Pipe (2) coaxial inside being arranged at outer glass enclosure tube (1) in metal heat absorption, and, the axle center of the outer glass enclosure tube (1) of the axis deviation of pipe (2) in metal heat absorption;
High-effective concentration mirror (3) is arranged in the cavity formed between pipe (2) in outer glass enclosure tube (1) and metal heat absorption.
Preferably, high-effective concentration mirror (3) is compound parabolic face condenser, comprises symmetrical left parabola and right parabola and the left involute upwards formed along left parabola and right parabola respectively and right involute composition; Wherein, the paraboloidal intersecting lens of left parabola and the right side is positioned at immediately below metal heat absorption pipe (2), and in intersecting lens and metal absorb heat, the bottom of pipe is fixed; The top of left involute and the top of right involute all with the contact internal walls of outer glass enclosure tube (1).
Preferably, the two ends of vacuum heat collection pipe, coordinate installed part and right support to coordinate installed part assembling by left support; The inside of vacuum heat collection pipe, adopts spring clip to support fixing high-effective concentration mirror (3).
Preferably, outer glass enclosure tube (1) offers the vacuumizing and exhausting mouth (11) communicated with outer glass enclosure tube (1) inwall.
Preferably, at least one getter is also comprised; Getter is positioned in the cavity formed between pipe (2) in outer glass enclosure tube (1) and metal heat absorption, for maintaining the vacuum of cavity between pipe (2) in outer glass enclosure tube (1) and metal heat absorption.
Preferably, the inwall of outer glass enclosure tube (1) is coated with anti-reflection film; The material of outer glass enclosure tube (1) is high-boron-silicon glass; In metal heat absorption pipe (2) be copper pipe, stainless steel tube or aluminium-alloy pipe; High-effective concentration mirror (3) is specular aluminium material, and thickness is 0.3 ~ 1.2mm; The diameter of outer glass enclosure tube (1) is 8 ~ 12 times of pipe (2) diameter in metal heat absorption.
Preferably, in metal heat absorption, pipe (2) is straight pipe or U-tube; In metal heat absorption, the outer surface of pipe (2) is coated with absorbing film.
The utility model also provides the heat collecting method of optically focused high efficiency vacuum heat collection tube in a kind of bias, comprises the following steps:
S1, the coaxial non-concentric in inside of glass enclosure tube (1) arranges pipe (2) in metal heat absorption outside, and arranges high-effective concentration mirror (3) in the cavity formed between glass enclosure tube (1) and the interior pipe (2) of metal heat absorption outside;
S2, sunshine is irradiated to high-effective concentration mirror (3) through after outer glass enclosure tube (1), and light incident within reception half-angle is all reflexed to metal heat absorption pipe (2) being positioned at outer glass enclosure tube (1) eccentric position by high-effective concentration mirror (3) with the form of reflection.
In the bias that the utility model provides, optically focused high efficiency vacuum heat collection tube and heat collecting method thereof have the following advantages: have that collecting efficiency is high, cost is low, structure simply and the advantage of not easily dust stratification and oxidation, therefore, be a middle high temperature solar heat collecting product that can be widely used in industrial processes.
Accompanying drawing explanation
The cross-sectional view of optically focused high efficiency vacuum heat collection tube in the bias that Fig. 1 provides for the utility model;
The simplified cross sectional figure of optically focused high efficiency vacuum heat collection tube in the bias that Fig. 2 provides for the utility model;
The longitudinal section of optically focused high efficiency vacuum heat collection tube in the bias that Fig. 3 provides for the utility model.
Detailed description of the invention
Below contrast accompanying drawing all for eccentric interior optically focused high efficiency vacuum heat collection tube, describe in conjunction with detailed description of the invention, eccentric internal focusing vacuum thermal-collecting tube structure of the present utility model is described further.But embodiment of the present utility model is only the description carried out the embodiment of this patent; not eccentric thermal-collecting tube product scope is defined; under the prerequisite not departing from this patent design spirit; the various distortion that this area engineers and technicians make the technical solution of the utility model or improvement; the change of dimensions, within the protection domain that the claims that all should fall into this patent are determined.
The deficiency of low-temperature water heating can only be used for for traditional full-glass solar energy collecting vacuum tube, and the solar panel of outer concentrating collector is exposed in air, easy dust stratification and oxidation, the low inferior shortcoming of concentration ratio, the utility model provides a kind of eccentric interior optically focused high efficiency vacuum heat collection tube and heat collecting method thereof, concrete, composition graphs 1, Fig. 2 and Fig. 3, in eccentric, optically focused high efficiency vacuum heat collection tube comprises: pipe 2 and high-effective concentration mirror 3 in the heat absorption of outer glass enclosure tube 1, metal;
The coaxial inside being arranged at outer glass enclosure tube 1 of pipe 2 in metal heat absorption, and, the axle center of the outer glass enclosure tube 1 of the axis deviation of pipe 2 in metal heat absorption; High-effective concentration mirror 3 is arranged in the cavity formed between pipe 2 in outer glass enclosure tube 1 and metal heat absorption; Wherein, the design theory of high-effective concentration mirror 3 spotlight effect complex optics reflection, adopt compound parabolic face condenser, comprise symmetrical left parabola and right parabola and the left involute upwards formed along left parabola and right parabola respectively and right involute composition; Wherein, the paraboloidal intersecting lens of left parabola and the right side is positioned at immediately below metal heat absorption pipe 2, and in intersecting lens and metal absorb heat, the bottom of pipe is fixed; The top of left involute and the top of right involute all with the contact internal walls of outer glass enclosure tube 1.
In practical application, outer glass enclosure tube 1 offers the vacuumizing and exhausting mouth 11 communicated with outer glass enclosure tube 1 inwall, in exhaust air technique, by vacuumizing and exhausting mouth, is extracted out by the air in thermal-collecting tube.Vacuumize in the pipe of thermal-collecting tube, by the heat loss that the heat be in control in the heat absorption of vacuum minimizing metal is caused by the convection current of thermal-collecting tube internal gas and conduction, make the heat overwhelming majority spread out of thermal-collecting tube by the working medium in pipe in metal heat absorption, the collecting efficiency of heat collector is guaranteed.
Also comprise at least one getter, such as, 1-2 getter; Getter is positioned over outer glass enclosure tube 1 and metal absorbs heat in the cavity of formation between interior pipe 2, for the vacuum of cavity between the outer glass enclosure tube 1 of long sustaining and the interior pipe 2 of metal heat absorption.
In the utility model, the inwall of outer glass enclosure tube 1 is coated with anti-reflection film, increases the light transmittance of glass; The material of outer glass enclosure tube 1 is high-boron-silicon glass; In metal heat absorption, pipe 2 is copper pipe, stainless steel tube or aluminium-alloy pipe, outer surface coating ahsorption membrane, improves the interior pipe of metal heat absorption to the absorptivity of light.High-effective concentration mirror 3 is processed by the specular aluminium that reflectivity is higher, and thickness is 0.3 ~ 1.2mm; The diameter of outer glass enclosure tube 1 is 8 ~ 12 times of pipe 2 diameter in metal heat absorption, is convenient to thermal-arrest and the optically focused parameter matching of high-effective concentration mirror.
In the utility model, the coaxial non-concentric in the inside of glass enclosure tube 1 arranges pipe 2 in metal heat absorption outside cleverly, and arranges high-effective concentration mirror 3 in the cavity formed between glass enclosure tube 1 and the interior pipe 2 of metal heat absorption outside; Sunshine is irradiated to high-effective concentration mirror 3 through after outer glass enclosure tube 1, light incident within reception half-angle is all reflexed to the metal heat absorption pipe 2 being positioned at outer glass enclosure tube 1 eccentric position by high-effective concentration mirror 3 with the form of reflection, the middle temp effect of 120 ~ 180 DEG C can be obtained, collecting efficiency also significantly improves, and can be widely used in industrial and agricultural production field.Visible, in outer glass enclosure tube 1, the interior pipe of metal heat absorption of eccentric position not only can receive direct light, also receives a part of scattered light, effectively increases photo-thermal conversion efficiency.
In addition, the two ends of vacuum heat collection pipe, coordinate installed part and right support to coordinate installed part assembling by left support; The inside of vacuum heat collection pipe, adopts spring clip to support fixing high-effective concentration mirror 3.Installed part and right support is coordinated to coordinate the specific constructive form of installed part for left support; the utility model does not limit; every installed part that pipe 2 and high-effective concentration mirror 3 in outer glass enclosure tube 1, metal heat absorption can be assembled together; all within the utility model protection domain, only introduce the version that a kind of support specifically coordinates installed part below:
With reference to Fig. 1-2, left support coordinates installed part and right support to coordinate installed part to be symmetrical structure, includes: eccentric flange blind plate 5, bellows 6, eccentric flange blind plate endoporus flanging 7 and high-effective concentration mirror the 1st fixed mount 8; Wherein, the eccentric flange blind plate endoporus of pipe 2 major diameter fit in eccentric flange blind plate 5 is provided with and absorbs heat with metal, in metal heat absorption, pipe 2 passes from eccentric flange blind plate endoporus; Further, the arranged outside of eccentric flange blind plate endoporus has eccentric flange blind plate endoporus flanging 7, and in metal heat absorption, pipe 2 is fixed by eccentric flange blind plate endoporus flanging 7 and eccentric flange blind plate 5; In addition, the outer wall of eccentric flange blind plate 5 and one end of bellows 6 seal fixing, and the other end of bellows 6 and the port cross-sectional of outer glass enclosure tube 1 seal fixing, make to form closed cavity between pipe 2 in outer glass enclosure tube 1 and metal heat absorption; The inwall of eccentric flange blind plate 5 arranges two for supporting high-effective concentration mirror the 1st fixed mount 8 of fixing high-effective concentration mirror 3.By bellows, pipe and outer glass enclosure tube can be alleviated in metal heat absorption at the expansion mismatch problem of the longitudinal axis and X direction.
In addition, fixing for carrying out more stable support to high-effective concentration mirror, also comprising at least one condenser supporting bracket 4; Condenser supporting bracket 4 is arranged at the below of high-effective concentration mirror 3, for supporting fixing high-effective concentration mirror 3.With reference to figure 2, condenser supporting bracket 4 is amounted to by multistage straight line and is formed, and comprising: horizontal support section 41, the 1st supporting section extended from horizontal support section 41 to upper left side and the 2nd supporting section extended from horizontal support section 41 to upper right side; 1st supporting section and the 2nd supporting section are symmetrical structure relative to horizontal support section 41; Wherein, the 1st supporting section comprises: end to end tiltedly lower straightway 42, the 1st is upper straightway 43, the 2nd tiltedly upper straightway 44 and the 3rd tiltedly upper straightway 45 tiltedly; Wherein, tiltedly descend the left end of the top of straightway 42 and horizontal support section 41 integrally formed, and contact with the diapire of high-effective concentration mirror 3; Tiltedly tiltedly to go up the bottom of straightway 43 integrally formed in the bottom and the 1st of lower straightway 42, and with the contact internal walls of outer glass enclosure tube 1; Tiltedly above the bottom of straightway 44 is integrally formed on the top and the 2nd of the 1st oblique upper straightway 43, and contacts with the diapire of high-effective concentration mirror 3; The bottom of the 2nd oblique oblique upper straightway 45 in top and the 3rd of upper straightway 44 is integrally formed, and with the contact internal walls of outer glass enclosure tube 1; The tip contact of the intersection point of the left upper end of outer glass enclosure tube 1 and high-effective concentration mirror 3 and the 3rd oblique upper straightway 45.
In addition, condenser the 2nd fixed mount 9 is also comprised; Condenser the 2nd fixed mount 9 is fixed on the back side of eccentric flange blind plate 5, and, be positioned at the below of eccentric flange blind plate endoporus.
By high-effective concentration mirror the 1st fixed mount, condenser supporting bracket 4 and condenser the 2nd fixed mount 9, realize supporting fixation to condenser comprehensively.
As can be seen here, in the bias that the utility model thermal-arrest obtains, optically focused high efficiency vacuum heat collection tube is different from common non-concentrating all-glass vacuum thermal-collecting tube, the outer glass enclosure tube of internal focusing vacuum thermal-collecting tube and metal absorb heat interior pipe decentraction, inner and outer pipes longitudinal axis, in the metal heat absorption in thermal-collecting tube, pipe is by straight pipe or U-tube two kinds of forms.The utility model accompanying drawing 3 is for straight pipe.One to two condenser supporting brackets are set in the centre of vacuum heat collection pipe, metal spring support can be adopted, pipe in metal heat absorption is supported together with high-effective concentration mirror, by this kind of arrangement form, effectively can improve the collecting efficiency of vacuum heat collection pipe.
The utility model also provides the heat collecting method of optically focused high efficiency vacuum heat collection tube in a kind of bias, comprises the following steps:
S1, the coaxial non-concentric in the inside of glass enclosure tube 1 arranges pipe 2 in metal heat absorption outside, and arranges high-effective concentration mirror 3 in the cavity formed between glass enclosure tube 1 and the interior pipe 2 of metal heat absorption outside;
S2, arranges condenser supporting bracket 4 in the below of high-effective concentration mirror 3, is supported fixing high-effective concentration mirror 3 by condenser supporting bracket 4;
S3, then, in metal heat absorption, the two ends, left and right of pipe 2 are installed respectively to support and are coordinated installed part;
Wherein, the installation method supporting cooperation installed part is:
S3.1, supports and coordinates installed part to comprise eccentric flange blind plate 5 and bellows 6; The eccentric flange blind plate endoporus of pipe 2 major diameter fit in eccentric flange blind plate 5 is provided with and absorbs heat with metal, makes high-effective concentration mirror 3 through the endoporus of eccentric flange blind plate 5; Further, the end of high-effective concentration mirror 3 is fixed by high-effective concentration mirror the 1st fixed mount 8 being fixed on eccentric flange blind plate 5 back side; Meanwhile, the upper-lower position of high-effective concentration mirror 3 is determined by condenser the 2nd fixed mount 9 be fixed on below eccentric flange blind plate 5 endoporus; Then, pipe 2 in metal heat absorption is fixed by eccentric flange blind plate endoporus flanging 7 and eccentric flange blind plate 5;
S3.2, the inwall of eccentric flange blind plate 5 places at least one getter; The outer wall of eccentric flange blind plate 5 and one end of bellows 6 seal fixing, and the other end of bellows 6 and the port cross-sectional of outer glass enclosure tube 1 seal fixing, make to form closed cavity between pipe 2 in outer glass enclosure tube 1 and metal heat absorption;
S4, glass enclosure tube 1 offers vacuumizing and exhausting mouth 11 outside, in exhaust air technique, by vacuumizing and exhausting mouth 11, is extracted out by the air of the closed cavity formed between pipe 2 in outer glass enclosure tube 1 and metal heat absorption, makes closed cavity be vacuum state; Then, vacuum exhaust mouth 11 is melted sealing; By getter, maintain the vacuum state of closed cavity;
S5, solar irradiation is mapped to high-effective concentration mirror 3, and light incident within reception half-angle is all reflexed to the metal heat absorption pipe 2 being positioned at outer glass enclosure tube 1 eccentric position by high-effective concentration mirror 3 with the form of reflection.
Optically focused high efficiency vacuum heat collection tube and heat collecting method thereof in the bias that the utility model provides, on the basis of traditional C PC thermal-collecting tube, utilize ray tracing principle simulation calculating optical efficiency, simultaneously according to rim ray principle, design is optimized to optically focused parabola, be eccentric position between pipe and outer glass enclosure tube in metal heat absorption, sunlight is by the reflection of compound parabolic face condenser, in the light receiving incidence within half-angle all delivers to outer glass enclosure tube eccentric position metal heat absorption with the form of reflection on pipe, for the input improving luminous energy provides theoretical foundation.By compound parabolic face condenser, in eccentric metal heat absorption, pipe not only can receive direct light, also receives a part of scattered light, effectively increases photo-thermal conversion efficiency, improves solar energy utilization ratio.
By the heat collector be made up of this vacuum heat collection pipe, steam or the water under high pressure of 120 ~ 180 DEG C can be produced, thus solar energy can be widely used in industrial medium temperature production field, improve solar energy utilization ratio.Also have that collecting efficiency is high, cost is low, structure simply and the advantage of not easily dust stratification and oxidation, therefore, be a middle high temperature solar heat collecting product that can be widely used in industrial processes.
Below be only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should look protection domain of the present utility model.
Claims (7)
1. an optically focused high efficiency vacuum heat collection tube in bias, is characterized in that, comprising: pipe (2) and high-effective concentration mirror (3) in the heat absorption of outer glass enclosure tube (1), metal;
Pipe (2) coaxial inside being arranged at outer glass enclosure tube (1) in metal heat absorption, and, the axle center of the outer glass enclosure tube (1) of the axis deviation of pipe (2) in metal heat absorption;
High-effective concentration mirror (3) is arranged in the cavity formed between pipe (2) in outer glass enclosure tube (1) and metal heat absorption.
2. optically focused high efficiency vacuum heat collection tube in bias according to claim 1, it is characterized in that, high-effective concentration mirror (3) is compound parabolic face condenser, comprises symmetrical left parabola and right parabola and the left involute upwards formed along left parabola and right parabola respectively and right involute composition; Wherein, the paraboloidal intersecting lens of left parabola and the right side is positioned at immediately below metal heat absorption pipe (2), and in intersecting lens and metal absorb heat, the bottom of pipe is fixed; The top of left involute and the top of right involute all with the contact internal walls of outer glass enclosure tube (1).
3. optically focused high efficiency vacuum heat collection tube in bias according to claim 1, is characterized in that, the two ends of vacuum heat collection pipe, coordinates installed part and right support to coordinate installed part assembling by left support; The inside of vacuum heat collection pipe, adopts spring clip to support fixing high-effective concentration mirror (3).
4. optically focused high efficiency vacuum heat collection tube in bias according to claim 1, is characterized in that, outer glass enclosure tube (1) offers the vacuumizing and exhausting mouth (11) communicated with outer glass enclosure tube (1) inwall.
5. optically focused high efficiency vacuum heat collection tube in bias according to claim 4, is characterized in that, also comprises at least one getter; Getter is positioned in the cavity formed between pipe (2) in outer glass enclosure tube (1) and metal heat absorption, for maintaining the vacuum of cavity between pipe (2) in outer glass enclosure tube (1) and metal heat absorption.
6. optically focused high efficiency vacuum heat collection tube in bias according to claim 1, is characterized in that, the inwall of outer glass enclosure tube (1) is coated with anti-reflection film; The material of outer glass enclosure tube (1) is high-boron-silicon glass; In metal heat absorption pipe (2) be copper pipe, stainless steel tube or aluminium-alloy pipe; High-effective concentration mirror (3) is specular aluminium material, and thickness is 0.3 ~ 1.2mm; The diameter of outer glass enclosure tube (1) is 8 ~ 12 times of pipe (2) diameter in metal heat absorption.
7. optically focused high efficiency vacuum heat collection tube in bias according to claim 1, is characterized in that, in metal heat absorption, pipe (2) is straight pipe or U-tube; In metal heat absorption, the outer surface of pipe (2) is coated with absorbing film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146307.2U CN204494878U (en) | 2015-03-16 | 2015-03-16 | Optically focused high efficiency vacuum heat collection tube in eccentric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146307.2U CN204494878U (en) | 2015-03-16 | 2015-03-16 | Optically focused high efficiency vacuum heat collection tube in eccentric |
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| CN204494878U true CN204494878U (en) | 2015-07-22 |
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| CN201520146307.2U Expired - Fee Related CN204494878U (en) | 2015-03-16 | 2015-03-16 | Optically focused high efficiency vacuum heat collection tube in eccentric |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729127A (en) * | 2015-03-16 | 2015-06-24 | 北京中竞同创能源环境技术股份有限公司 | Eccentric internal condensation type efficient vacuum heat collection tube and heat collection method thereof |
| CN108613395A (en) * | 2016-12-26 | 2018-10-02 | 北京有色金属研究总院 | A kind of highly-efficient solar collecting pipe |
-
2015
- 2015-03-16 CN CN201520146307.2U patent/CN204494878U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729127A (en) * | 2015-03-16 | 2015-06-24 | 北京中竞同创能源环境技术股份有限公司 | Eccentric internal condensation type efficient vacuum heat collection tube and heat collection method thereof |
| CN108613395A (en) * | 2016-12-26 | 2018-10-02 | 北京有色金属研究总院 | A kind of highly-efficient solar collecting pipe |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20180316 |