CN102486343B - Inner light-gathering vacuum solar heat collection pipe - Google Patents
Inner light-gathering vacuum solar heat collection pipe Download PDFInfo
- Publication number
- CN102486343B CN102486343B CN201010577171.2A CN201010577171A CN102486343B CN 102486343 B CN102486343 B CN 102486343B CN 201010577171 A CN201010577171 A CN 201010577171A CN 102486343 B CN102486343 B CN 102486343B
- Authority
- CN
- China
- Prior art keywords
- tube
- cover glass
- endothermic tube
- glass tube
- solar heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000006059 cover glass Substances 0.000 claims abstract description 119
- 238000010438 heat treatment Methods 0.000 claims abstract description 64
- 230000011514 reflex Effects 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 50
- 238000007789 sealing Methods 0.000 claims description 26
- 239000011521 glass Substances 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 46
- 238000005516 engineering process Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 239000004411 aluminium Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
- 235000014698 Brassica juncea var multisecta Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000251184 Rajiformes Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012084 conversion product Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention relates to an inner light-gathering vacuum solar heat collection pipe which comprises a vacuum cover glass pipe provided with a reflected light film and a heat absorption pipe which is arranged in a cover glass pipe and positioned on a focusing position of the reflected light film, wherein a flowing heating medium working substance is arranged in the heat absorption pipe; the cover glass pipe comprises a reflecting section, the cross section shape of the reflecting section is formed through closely connecting multiple section arc line sections, the reflected light film is arranged on the internal surface of the reflecting section corresponding to one of the arc line sections, and the arc line section is a reflex arc line section; and the outside of the cover glass pipe is also provided with a driving piece driven by a sunlight tracking device. A glowing film is directly arranged in the cover glass pipe, the manufacturing cost is saved, the cover glass pipe is externally provided with the driving piece, a single solar heat collection pipe can track sunlight independently, and the optothermal efficiency is greatly improved.
Description
[technical field]
The present invention relates to a kind of solar energy optical-thermal switch technology, more particularly, relate to a kind of internal focusing vacuum solar heat collecting pipe.
[background technology]
Solar energy optical-thermal switch technology product in the market still limits to cryogenic technique product, is exactly more particularly that obtained heat energy is below 100 DEG C.Solar collection element is flat plate collector and glass vacuum heat collection tube of solar energy mainly.The said goods has been widely used in the market of solar water heater and solar heating engineering.
Hot water for life accounts for about 3% of world's total energy consumption, accounts for 10% of building energy conservation.The summer air-conditioning refrigeration and the winter heating that account for building energy consumption maximum ratio account for 30% of world's total energy consumption.Therefore greatly develop the application of solar energy hot product in summer air-conditioning refrigeration and winter heating and effectively could change world energy sources structure, both could ensure national sustained economic development, and reduced CO2 emission again and stop climate warming.
There is following shortcoming in current solar collection element:
(1) running temperature is low and can not meet summer air-conditioning refrigeration and the requirement of winter heating.
Lithium bromide chiller is that the more ripe thermal source that utilizes carries out the unit of air conditioner refrigerating at present.Present stage reaches 160 DEG C ~ 180 DEG C with gas heating steam to carry out dual-effect refrigeration.Its coefficient of refrigerating performance can reach 1.3, namely provides steam heat 1000 kilocalorie of more than 160 DEG C, can obtain cold 1300 kilocalorie.And current solar collection element such as glass vacuum heat collection tube of solar energy can only to provide the hot water of less than 90 DEG C in summer, BrLi chiller singly can only put refrigeration at this temperature, and its coefficient of refrigerating performance is below 0.6.Because refrigerating efficiency is low, floor space is large and cause solar airconditioning refrigeration not promote.
In like manner also there are the problems referred to above in winter heating, and winter, to 65 DEG C ~ 90 DEG C, water temp. heating be ensured that solar collection element has higher photo-thermal conversion efficiency again, current solar energy optical-thermal conversion products can't complete under the environment of-20 DEG C ~ 0 DEG C.
(2) running temperature in order to improve solar energy hot product adopts outer light condensing technology.Solar collection element is placed on the focal position of concentrator, concentrator is placed oneself in the midst of again in air ambient, and this technology is called outer light condensing technology.Because concentrator exposes oxidizable, easy dust stratification, yielding so fail to apply in atmosphere.
(3) interior light condensing technology: focal position heat absorbing element being placed on concentrator, concentrator is placed on again in an airtight container, and this technology is called interior light condensing technology.Current interior light and heat collection Element Technology is substantially by the curved surface designing concentrator under the prerequisite of not following the tracks of sunshine, and thus focusing ratio (ratio that the daylighting area of concentrator is amassed with the side to light of heat absorbing element) less than normal, generally at about 3 times.Owing to not following the tracks of sunshine, except the focusing ratio effect designed by obtaining under sunlight vertical irradiation noon, during the oblique fire of all the other sunshine east-west directions, just can not show a candle to the spotlight effect at noon.Can not summer sun air conditioner refrigerating and winter heating in apply.
[summary of the invention]
The technical problem that the present invention will be situated between certainly is, for the defect that the running temperature of current solar collection element is low, the internal focusing vacuum solar heat collecting pipe that a kind of light gathering efficiency is higher is provided, to obtain the heating agent working medium of higher temperature, and then improves the running temperature of various solar product.
The present invention solves this technical problem adopted technical scheme: construct a kind of internal focusing vacuum solar heat collecting pipe, comprise the vacuum (-tight) housing glass tube that is provided with reflexed light film and be arranged in described cover glass tube the endothermic tube being positioned at described reflexed light film focal position, in described endothermic tube, being provided with the heating agent working medium of flowing; Described cover glass tube comprises reflecting segment, and the cross sectional shape of described reflecting segment is set to multistage arc and closes and be connected to form, and described reflexed light film is arranged on the reflecting segment inner surface wherein corresponding to one section of arc, and this arc is reflex arc line segment; The driving member driven by solar tracking device is also provided with outside described cover glass tube.
In internal focusing vacuum solar heat collecting pipe of the present invention, the transition arcs line segment that described multistage arc comprises two sections of symmetrically arranged symmetrical arc line segments and coupled together by described symmetrical arc line segment, the symmetrical center line of described symmetrical arc line segment overlaps with the diameter of described endothermic tube, and described reflex arc line segment is a wherein symmetrical arc line segment.Add man-hour, accurately mould can be made according to the cross sectional shape of cover glass tube, the high-temp liquid glass produced by glass kiln draws out cover glass tube by mould batch, can control the radius of curvature of the curved surface required for reflexed light film like this well, the volume of whole thermal-collecting tube can be reduced again, can material be saved again, avoid and adopt columnar cover glass tube.In addition, if cover glass tube is made round tube shape, the focal position of this cover glass tube is positioned at eccentric part, and the endothermic tube being namely in focal position is positioned at the eccentric position of cover glass tube; In the process of following the tracks of sunshine, because endothermic tube will be communicated with the heating agent working medium of outside, then whole cover glass tube just conveniently must realize sun light tracking around the central axis of endothermic tube; For the thermal-collecting tube of larger focusing ratio, weight weighs about 30 kilograms, then need very large driving moment that whole cover glass tube could be driven to rotate, and then easily in rotation process, cause damage to cover glass tube.And in internal focusing vacuum solar heat collecting pipe of the present invention, by arranging the transition arcs line segment that multistage arc comprises two sections of symmetrically arranged symmetrical arc line segments and coupled together by described symmetrical arc line segment, and the symmetrical center line arranging described symmetrical arc line segment overlaps with the diameter of described endothermic tube, the center of gravity of whole cover glass tube is just in time positioned on the central shaft of endothermic tube, so only need to provide the rotating torque of enough overcome frictions can realize the rotation of cover glass tube, its rotating torque is much smaller, ensure that carry out cover glass tube in sun light tracking process be not easy damage, extend the service life of whole thermal-collecting tube.
In internal focusing vacuum solar heat collecting pipe of the present invention, described reflex arc line segment is circular arc line segment or parabolic arc line segment or elliptic arc line segment.
In internal focusing vacuum solar heat collecting pipe of the present invention, the one end open of described endothermic tube and the other end is closed, this opening is communicated with outside heating agent working medium operational system.
In internal focusing vacuum solar heat collecting pipe of the present invention, the both ends open of described endothermic tube, two openends of described endothermic tube are respectively and are communicated with the port of export with the entrance point of outside heating agent working medium operational system.
In internal focusing vacuum solar heat collecting pipe of the present invention, the part described endothermic tube being positioned at cover glass tube is provided with special-shaped ball.Shut because cover glass tube and endothermic tube weld at two-port place, endothermic tube expanded by heating in use, makes the axial dimension of endothermic tube increase, thus causes endothermic tube port junction stress sharply to increase and booster.By arranging special-shaped ball on endothermic tube, making endothermic tube in cover glass tube, have certain axial stretching amount, thus preventing it to be subject to thermal spalling.
In internal focusing vacuum solar heat collecting pipe of the present invention, the linkage section that openend and the cover glass tube of described endothermic tube are arranged by cover glass tube end is connected, one end of described linkage section is connected with described cover glass tube reflecting segment rounding off and the other end is connected with the openend of described endothermic tube, and described link and described endothermic tube are coaxially arranged.Adding man-hour, first produce this linkage section, again one end of linkage section is connected with the reflecting segment of cover glass tube by technological process for blowing, again by the openend of the other end of linkage section and endothermic tube by sealing after the welding of heating flange, solve the openend of endothermic tube and the reflecting segment of cover glass tube due to caliber gap greatly and the shape different and very difficult welding problem of sealing; Simultaneously when processing internal focusing vacuum solar heat collecting pipe of the present invention, more easily ensure that endothermic tube is positioned at the focal position of cover glass tube reflexed light film, ensure that machining accuracy, improve yield rate.
In internal focusing vacuum solar heat collecting pipe of the present invention, be also provided with the metal tube being close to described endothermic tube inwall in described endothermic tube, described heating agent working medium is arranged in described metal tube.
In internal focusing vacuum solar heat collecting pipe of the present invention, described endothermic tube is metal tube, described endothermic tube is connected by end cap with cover glass tube, described end cap seal is arranged on the end of described cover glass tube reflecting segment, described end cap central is provided with the centre bore passed for described endothermic tube, and between described endothermic tube and described end cap central bore, sealing is arranged.By arranging end cap between endothermic tube openend and cover glass tube, and centre bore being set at end cap central place, making endothermic tube be positioned in the center position of cover glass tube; Without the need to considering the problem how adopting beading technique cover glass tube and endothermic tube to be coupled together again, processing technology is more simple.
In internal focusing vacuum solar heat collecting pipe of the present invention, described endothermic tube is metal tube, and described cover glass tube is provided with two openends, and described upper open end sealing is provided with the first end cap, and described lower open end sealing is provided with the second end cap; Described endothermic tube is positioned at the focal position of cover glass tube reflecting segment by described first end cap, and described first end cap central is provided with the centre bore passed for described endothermic tube, and between described endothermic tube and described end cap central bore, sealing is arranged.
Implement internal focusing vacuum solar heat collecting pipe of the present invention, there is following effective effect: by arranging reflexed light film inside cover glass tube, in cover glass tube, be positioned at reflexed light film focal position endothermic tube is set, in endothermic tube, be provided with the heating agent working medium of flowing; During use, sunshine reflexes to the endothermic tube being positioned at focal position through reflexed light film, heats, thus sunshine is converted into heat energy to the heating agent working medium in endothermic tube.Because reflexed light film is arranged in cover glass tube, be thus not easy dust stratification.Cover glass tube is set to vacuum in addition, makes reflexed light film and endothermic tube be not easy oxidation, significantly extends the service life of whole thermal-collecting tube, saved maintenance cost.And reflexed light film is set directly at the inner surface of cover glass tube, avoids and independent reflector is set in cover glass tube, reflector can also be avoided easily to be out of shape brought problem simultaneously.In addition, owing to being also provided with the driving member driven by solar tracking device outside cover glass tube, make the reflexed light film in cover glass tube can face sunshine all the time, thus more sunshine can be obtained, thus reach better spotlight effect, and then obtain the heat energy of higher temperature, improve the running temperature of various solar product.By being arranged on by reflexed light film on cover glass tube reflecting segment inner surface corresponding to reflex arc line segment, when the inner surface of sunlight at cover glass tube, the sunlight of 90% is had to be reflexed to the endothermic tube being positioned at focal position by reflective coating.If cover glass tube is made round tube shape, namely the cross sectional shape of cover glass tube is circular, high-temperature heat-collection pipe in selecting 13 times of focusing ratio to make, only have the reverberation of the inner surface of 62% can reflex to the endothermic tube being positioned at focal position, these are just many than the material of cover glass tube in internal focusing vacuum solar heat collecting pipe of the present invention about 40%, and therefore internal focusing vacuum solar heat collecting pipe material cost of the present invention is lower.Particularly, reflexed light film can be arranged on region corresponding on cover glass tube inner surface, the region that namely reflecting segment internal reflection arc is corresponding by the technique of steaming film.
Below in conjunction with drawings and Examples, the invention will be further described.
[accompanying drawing explanation]
Fig. 1 is the embodiment front view of internal focusing vacuum solar heat collecting pipe of the present invention;
The structural representation of Fig. 2 to be the endothermic tube of internal focusing vacuum solar heat collecting pipe of the present invention be two end openings;
Fig. 3 is that in internal focusing vacuum solar heat collecting pipe preferred embodiment of the present invention, reflective surface is the cross-sectional view of arc surface;
Fig. 4 is concentrating light principles figure when reflective surface is arc surface in internal focusing vacuum solar heat collecting pipe preferred embodiment of the present invention;
Fig. 5 is the structural representation of another embodiment of internal focusing vacuum solar heat collecting pipe of the present invention;
Fig. 6 is the structural representation of an embodiment again of internal focusing vacuum solar heat collecting pipe of the present invention.
[detailed description of the invention]
As shown in Figure 1,2,3, 4, in internal focusing vacuum solar heat collecting pipe of the present invention, the endothermic tube 2 comprising cover glass tube 1 and be arranged in cover glass tube 1, is provided with the heating agent working medium 3 of flowing, is provided with driving member 4 outside cover glass tube 1 in endothermic tube 2.Wherein, cover glass tube 1 is set to vacuum, and its inner surface is provided with reflexed light film 5, and endothermic tube 2 is arranged on the focal position of reflexed light film 5.In endothermic tube 2, heat can be taken away by the heating agent working medium 3 of flowing immediately.Driving member 4 outside cover glass tube can drive by solar tracking device the tracking realizing sunshine, irradiates so that sunshine can face reflective coating, to obtain more sunshine, thus improves heat build-up effect.Particularly, driving member can be travelling gear, and solar tracking device is engaged with travelling gear by gear, thus band nutating gear rotates, and then drives cover glass tube to follow the tracks of sunshine; Driving member can also be set to the belt pulley be fixed on outside cover glass tube, solar tracking device is by belt or Steel rope drive pulley rotation; Driving member can also be set to the moving runner be fixed on outside cover glass tube, solar tracking device drives moving runner to rotate by connecting rod, wherein one end translation of solar tracking device drive link, and the other end pinned connection of connecting rod is on the eccentric position of moving runner, thus form brace and connecting rod framework.As long as solar tracking device can drive cover glass tube to rotate by driving member.
Existing solar thermal collector is generally the array of many solar energy heat collection pipes, for keeping larger light-receiving area, usual solar thermal collector volume is larger, this just makes will consider the center of gravity of whole solar thermal collector and the problem of wind loading rating when designing the solar tracking device of this solar thermal collector, a huge base and firm turning cylinder must be set thus, make involving great expense of whole solar tracking device, be difficult to promote.In internal focusing vacuum solar heat collecting pipe of the present invention, by arranging driving member 4 outside cover glass tube 1, making this solar energy heat collection pipe can directed tracing sunshine, the photo-thermal conversion efficiency of 80% can be improved.Internal focusing vacuum solar heat collecting pipe of the present invention drives single solar energy heat collection pipe to do to follow the tracks of the transmeridional rotation of sunshine by driving member 4 under the driving of solar tracking device; Do not need to rotate whole solar energy heat collection pipe array, reduce equipment cost and the operating cost of whole solar tracking device.For this preferred embodiment, rotatable 200 solar energy heat collection pipes of mechanical reduction gear mixed by the motor of a 20W.Tracking manual transfer every month of sun altitude is once completing to the inclination angle of secondary solar thermal collector support.The solar energy thermal conversion efficiency annual compared with full-automatic tracking system of measured result only differs 7%.But cost is only 1/20th of full-automatic tracking system.
In internal focusing vacuum solar heat collecting pipe preferred embodiment of the present invention, cover glass tube 1 comprises reflecting segment 1a, reflecting segment 1a is preferably set to cylinder, its cross sectional shape be set to multistage arc close be connected to form, reflexed light film 5 is arranged on the reflecting segment inner surface wherein corresponding to one section of arc, and this arc is reflex arc line segment 6.Reflex arc line segment 6 can be set to circular arc line segment or the round and smooth arc such as parabolic arc line segment or elliptic arc line segment.When sunlight is when the inner surface of cover glass tube 1, the solar energy suffered by 90% inner surface is had to reflect the endothermic tube 2 arriving and be positioned at focal position.Particularly, reflexed light film 5 can be arranged on region corresponding on cover glass tube 1 inner surface, i.e. the region of the reflecting segment 1a of reflex arc line segment 6 correspondence by the technique of steaming film.
Particularly, can arrange the transition arcs line segment that multistage arc comprises two sections of symmetrically arranged symmetrical arc line segments and coupled together by symmetrical arc line segment, reflex arc line segment 6 is a wherein symmetrical arc line segment.Wherein symmetrical arc line segment can be set to circular arc line segment or parabolic arc line segment or elliptic arc line segment etc. as required, and it is circular arc line segment that the present embodiment preferably arranges symmetrical arc line segment.Add man-hour, accurately mould can be produced according to the cross sectional shape of cover glass tube, cover glass tube batch draws out by the high temp glass liquid that recycling glass kiln produces, the radius of curvature required for cover glass tube medial surface can controlled well like this residing for reflexed light film 5, the volume of whole thermal-collecting tube can be reduced again, can also avoid and adopt columnar cover glass tube 1, save material.In addition, by multistage arc being divided into symmetrically arranged two sections of symmetrical arc line segments, and the symmetrical center line of these two sections of symmetrical arc line segments overlaps with the diameter of described endothermic tube, namely the symmetrical center line of these two sections of symmetrical arc line segments is by the center of circle of endothermic tube at this place, this makes cover glass tube 1 have the identical arc surface of two block size equal shape symmetry axis centered by the central shaft of endothermic tube 2 to combine, thus make the center of gravity of the cover glass tube 1 of internal focusing vacuum solar heat collecting pipe be positioned on the central shaft of endothermic tube 2, thus the rotating torque greatly reduced needed for cover glass tube rotation.
As shown in Figure 3, in internal focusing vacuum solar heat collecting pipe preferred embodiment of the present invention, the cross sectional shape of cover glass tube 1 is closed by four sections of arcs and is connected to form, and is respectively arc
with
wherein arc
for reflex arc line segment 6, the cover glass tube 1 reflecting segment 1a region corresponding to this reflex arc line segment 6 is provided with reflexed light film 5.Reflexed light film 5 can be the metallic diaphragm of the high reflectance being plated in cover glass tube 1 medial surface, is preferably aluminium film, the technique of evaporation of aluminum film specifically can be adopted to be plated in cover glass tube 1 medial surface corresponding region by aluminium film.Existing concentrator normally arranges reflector in cover glass tube 1, and reflector adopts metal material stamping usually.Internal focusing vacuum solar heat collecting pipe of the present invention, by reflexed light film 5 being set directly at the mode of the inner side of cover glass tube 1, reduce material cost, and reflective surface can not deform, and optically focused is accurately exquisite, and efficiency is high.Such as a 2000mm is long, and the concentrator that diameter 80mm adopts metal aluminum sheet and designs needs the polishing aluminium sheet that 200 grams of 0.4mm are thick.Internal focusing vacuum solar heat collecting pipe of the present invention is owing to adopting cover glass tube 1 inwall plated aluminum film, and the thickness of aluminium film is 0.005mm, is only 1/80th of aluminium plate thickness.200 grams of highly purified reflective aluminium sheets need RMB 16 yuan, account for 60% of whole interior light and heat collection tube material.In addition, glass aluminizes minute surface reflecting rate up to more than 93%, and the anti-rate of aluminium sheet minute surface is about 85%.
In the preferred embodiment, arc
circular arc or parabola shaped or ellipse arc can be set to, preferably be set to circular arc in the present embodiment.Corresponding, in order to ensure the intensity of cover glass tube 1 entirety, preferably by arc
also be set to circular arc, and be arranged on and arc
be symmetrical arranged.And arc
with
small arc-shaped line segment can be adopted, by orthodrome line segment
with
rounding off couples together the closed cross sectional shape of formation one.
As shown in Figure 3,4, in the preferred embodiment, preferably endothermic tube 2 is arranged on arc
with
the position of symmetrical centre axle.As shown in Figure 4, arc is supposed
the center of circle for some an O, radius is R.With an O for initial point sets up XOY plane rectangular coordinate system.The cross sectional shape of endothermic tube 2 is circle O ', meets isosceles right angle trigonometry type ABC, the wherein base of this isosceles right triangle in doing in this circle O '
be parallel to X-axis and cross center of circle O ', B point in y-axis, B point coordinates be (0, b), ∠ A=∠ B=45 °
linear equation be:
Y=-X+b is (0 < b < R) wherein; (1)
By the known 0 < X < R of formula (1), 0 < Y < R.
Incident ray S is perpendicular to string
be irradiated to reflex arc line segment
place.Wherein, string
two-end-point coordinate be D (Xd, Yd), E (-Xd, Yd), pip is G, and its coordinate is G (Xg, Yg), and normal is OG, reflection circular arc
be straight line N at the tangent line at pip G place; The parallel Y-axis of incident ray S is incident, and its linear equation is Xs=Xg, exactly by the straight line of the parallel Y-axis in pip G place; Require as incident ray-Xd < Xs < Xd, the reflection ray be radiated on circular arc all can focus on
on line segment, also just can demonstrate reflection ray and all can focus on the surface of endothermic tube 2.Due in the preferred embodiment, outside cover glass tube 1, be provided with driving member 4, this driving member 4 can be driven to drive cover glass tube 1 to rotate by solar tracking device, make reflecting segment 1a circular arc light sunward all the time, namely ensure that incident pipeline is all the time perpendicular to string
be irradiated to reflex arc line segment
place, ensure that incident ray all the time can parallel Y-axis incidence.Whole reflex arc line segment
be that symmetrical centre is symmetrical with Y-axis, namely Y-axis is reflection circular arc
symmetrical centre axle, same isosceles right triangle Δ ABC is also symmetrical centre axle with Y-axis, like this, as incident ray 0 < Xs < Xd, if be radiated at circular arc
on reflection ray all can focus on
on line segment, be then radiated at circular arc
on reflection ray just can focus on
on line segment.When being positioned at
form reflected ray S ' after arbitrary light S of section is incident to pip G, the angle of normal OG and X-axis is α, and the angle of reflection ray S ' and X-axis is β.Because pip G (Xg, Yg) is at circular arc
on, there is equation thus:
Xg
2+Yg
2＝R
2(3)
As seen from the figure: ∠ 1=∠ 2, ∠ 3=∠ 4, ∠ 1+ α=90 °, β+∠ 1+ ∠ 2=90 °, therefore β=2 α-90 °, has equation thus:
Can be obtained by formula (2) and formula (4):
Meanwhile, the linear equation of reflection ray S ' is:
Can be obtained by formula (5) and formula (6):
Because the intersection I (Xi, Yi) of reflection ray S ' and triangle Δ ABC is simultaneously on two straight lines, thus have:
Yi＝-Xi+b (9)
Arranged can be obtained by formula (3), (8), (9):
As b=0.75R, take 0.02R as equal portions interval equal difference value by Xg within the scope of 0-0.92R, substitute into successively in formula (10), obtain table 1:
Table 1
| Xg(R) | Xi(R) | Xg(R) | Xi(R) | Xg(R) | Xi(R) |
| 0.00 | 0.000 | 0.36 | 0.102 | 0.72 | 0.031 |
| 0.02 | 0.010 | 0.38 | 0.104 | 0.74 | 0.007 |
| 0.04 | 0.019 | 0.40 | 0.106 | 0.76 | -0.023 |
| 0.06 | 0.027 | 0.42 | 0.108 | 0.78 | -0.063 |
| 0.08 | 0.035 | 0.44 | 0.109 | 0.80 | -0.118 |
| 0.10 | 0.042 | 0.46 | 0.110 | 0.82 | -0.195 |
| 0.12 | 0.049 | 0.48 | 0.110 | 0.84 | -0.312 |
| 0.14 | 0.055 | 0.50 | 0.109 | 0.86 | -0.506 |
| 0.16 | 0.061 | 0.52 | 0.109 | 0.88 | -0.881 |
| 0.18 | 0.066 | 0.54 | 0.107 | 0.90 | -1.893 |
| 0.20 | 0.072 | 0.56 | 0.105 | 0.92 | -13.384 |
| 0.22 | 0.076 | 0.58 | 0.101 | ||
| 0.24 | 0.081 | 0.60 | 0.097 | ||
| 0.26 | 0.085 | 0.62 | 0.091 | ||
| 0.28 | 0.089 | 0.64 | 0.084 | ||
| 0.30 | 0.093 | 0.66 | 0.075 | ||
| 0.32 | 0.096 | 0.68 | 0.063 | ||
| 0.34 | 0.099 | 0.70 | 0.049 |
Visible, as 0≤Xg≤0.74R, reflection ray S ' and line segment
intersection I all the time in the first quartile of coordinate system XOY, namely incident ray S all can by reflection circular arc
reflex to line segment
on; Same when-0.745R≤Xg≤0, reflection ray S ' and line segment
intersection point all the time in second quadrant of coordinate system XOY, namely incident ray S also can by reflection circular arc
reflex to line segment
on.Therefore, for the reflective surface of circular arc, by endothermic tube 2 is arranged on focal position, all can reflex on endothermic tube 21 by all incident raies, as shown in Table 1 as b=0.75R, the maximum of Xg is 0.74R, i.e. Xd=0.74R; And there is maximum 0.11R in Xi in the scope of 0≤Xg≤0.74R, i.e. Xa=0.11R, obtainable maximum focusing ratio thus
When b gets different value, obtainable maximum focusing ratio is also different, is equal portions interval equal difference value, obtains Xd, Xa, Ya, maximum focusing ratio successively in the manner described above by b within the scope of 0.52R-0.98R with 0.02R
value, obtain table 2:
Table 2
| b(R) | Xd(R) | Xa(R) | Ya(R) | Focusing ratio |
| 0.52 | 0.26 | 0.003 | 0.525 | 86.67 |
| 0.54 | 0.36 | 0.009 | 0.556 | 40.00 |
| 0.56 | 0.44 | 0.016 | 0.588 | 27.50 |
| 0.58 | 0.50 | 0.023 | 0.620 | 21.74 |
| 0.60 | 0.54 | 0.031 | 0.654 | 17.42 |
| 0.62 | 0.58 | 0.040 | 0.689 | 14.50 |
| 0.64 | 0.62 | 0.049 | 0.725 | 12.65 |
| 0.66 | 0.64 | 0.059 | 0.762 | 10.85 |
| 0.68 | 0.66 | 0.070 | 0.801 | 9.43 |
| 0.70 | 0.68 | 0.081 | 0.840 | 8.40 |
| 0.72 | 0.70 | 0.092 | 0.879 | 7.61 |
| 0.74 | 0.72 | 0.104 | 0.920 | 6.92 |
| 0.76 | 0.74 | 0.116 | 0.961 | 6.38 |
| 0.78 | 0.76 | 0.128 | 1.002 | 5.94 |
| 0.80 | 0.78 | 0.141 | 1.044 | 5.53 |
| 0.82 | 0.78 | 0.155 | 1.088 | 5.03 |
| 0.84 | 0.80 | 0.169 | 1.133 | 4.73 |
| 0.86 | 0.80 | 0.183 | 1.177 | 4.37 |
| 0.88 | 0.82 | 0.198 | 1.223 | 4.14 |
| 0.90 | 0.82 | 0.213 | 1.269 | 3.85 |
| 0.92 | 0.82 | 0.228 | 1.315 | 3.60 |
| 0.94 | 0.84 | 0.245 | 1.364 | 3.43 |
| 0.96 | 0.84 | 0.261 | 1.412 | 3.22 |
| 0.98 | 0.86 | 0.278 | 1.462 | 3.09 |
When carrying out structural design to this internal focusing vacuum solar heat collecting pipe, according to required daylighting side to light area determination string
size, select suitable focusing ratio, determine endothermic tube 2 diameter.Calculate each point coordinates of A, B, C, D, E by aforesaid way again, and the value of R can be determined, the optimum structure of this solar energy heat collection pipe can be determined thus.
As shown in Figure 1, in the preferred embodiment of internal focusing vacuum solar heat collecting pipe of the present invention, can arrange the one end open of endothermic tube 2 and the other end is closed, this opening is connected with outside heating agent working medium operational system.By solar energy heat collection pipe slant setting, when sunshine is after the reflexed light film 5 of cover glass tube 1 reflexes to endothermic tube 2, the heating agent working medium 3 (usual heating agent working medium 3 is water) in heating endothermic tube 2.Can upper and lower free convection in endothermic tube 2 after heating agent working medium 3 temperature raises.The openend 2a of endothermic tube 2 is connected with outside heating agent working medium operational system, thus is taken away by thermogenetic for light heat and be used.As inserted in the insulation header of solar thermal collector the openend of endothermic tube 2, form a solar thermal collector module by branched internal focusing vacuum solar heat collecting pipe, by multiple block coupled in series or compose in parallel high-temperature heat supply system in solar energy.
As shown in Figure 2, as required, also endothermic tube 2 can be set to both ends open, two openends of endothermic tube 2 are respectively and are communicated with the port of export with the entrance point of outside heating agent working medium operational system.Constantly the heating agent working medium 3 after heating is taken away and the heating agent working medium 3 that the temperature of supplementary equivalent is lower simultaneously by the EGR in outside heating agent working medium operational system.In the present embodiment, preferably on endothermic tube 2, special-shaped ball 10 is set near open end., the running temperature of its endothermic tube reaches about 400 DEG C in the solar energy heat collection pipe of about 10 times focusing ratio in use, probably can expand 2.4 millimeters, and cover glass tube is still in the temperature a little more than environment temperature, expands hardly for the endothermic tubes of 2 meters long.If do not arrange special-shaped ball on endothermic tube, then endothermic tube sharply increases at the stress of open end, causes booster.Special-shaped ball can absorb the axial expansion amount of endothermic tube straight length part, prevents booster.Particularly, special-shaped ball can arrange any position that endothermic tube is positioned at cover glass tube, as near open end or interlude or tail end.
Conveniently process, as shown in Figure 1, 2, preferably between the openend of endothermic tube 2 and cover glass tube 1, arrange linkage section 7, this linkage section 7 is positioned at cover glass tube 1 end.One end of linkage section 7 is connected with cover glass tube 1 reflecting segment 1a rounding off and the other end is connected with the openend 2a of endothermic tube.Key syndeton now can be utilized driving member 4 to be positioned at the linkage section 7 of cover glass tube, to drive for solar tracking device.Also driving member can be fixed on the outside of cover glass tube reflecting segment.
As shown in Figure 1, 2, preferably in endothermic tube 2, be also provided with metal tube 9, metal tube 9 is close to endothermic tube 2 inwall and is arranged, and heating agent working medium 3 is arranged in metal tube 9, and such heating agent working medium 3 just flows in metal tube 9.Be vacuum environment between endothermic tube 2 and cover glass tube 1, endothermic tube 2 itself bears certain pressure.Easily expand after heating agent working medium 3 is absorbed heat, overpressure is raised.If directly heating agent working medium 3 to be arranged on flowing in endothermic tube 2, be easy to after expanded by heating, cause endothermic tube 2 break and damage.By heating agent working medium 3 being arranged on flowing in metal tube 9, heat can be delivered to the heating agent working medium 3 of its internal flow by metal tube 9, simultaneously the rigidity of metal tube 9 itself will be better than the endothermic tube 2 that glass is made, the withstand voltage properties of corresponding metal tube 9 is better, even if heating agent working medium 3 expands, also endothermic tube 2 can not be damaged.The material supply section of metal tube 9 selects the material of good heat conductivity, as copper pipe etc.In the above-described embodiments, when endothermic tube 2 is one end open, then metal tube 9 is also set to one end open, as shown in Figure 1, the openend of metal tube 9 is communicated with outside heating agent working medium operational system, heating agent working medium 3 convection current in metal tube 9, the pressure produced that heat absorption can not be expanded passes to endothermic tube 2.If when endothermic tube 2 is both ends open, then metal tube 9 is also set to both ends open, as shown in Figure 2, and the entrance point of metal tube 9 is directly connected with outside heating agent working medium operational system with the port of export, heating agent working medium 3 flows in metal tube 9, the pressure of generation can not be passed to endothermic tube 2 equally.
In the above-described embodiments, the liquid of heating agent working medium preferably good heat-transfer, as water, the heat that such endothermic tube absorbs the heating agent working medium rapidly and in endothermic tube can carry out heat exchange, and heat is taken away by heating agent working medium rapidly.
As shown in Figure 5, endothermic tube 2 directly can also being replaced with metal tube 9 as required, so just can improve the withstand voltage properties of endothermic tube 2, avoiding the endothermic tube 2 because causing after heating agent working medium 3 heat absorption expansion damaged.When endothermic tube 2 is metal tube 9, in order to form the region of vacuum between endothermic tube 2 and cover glass tube 1, then the end connected mode between metal tube 9 and cover glass tube 1 will be different with above-described embodiment.As shown in Figure 5, when metal tube 9 is one end open, corresponding cover glass tube 1 is also one end open, first end cap 8 of sealing its openend 1a is set at the openend 1a of cover glass tube, first end cap central is provided with centre bore 8a, metal tube 9 is fixed in the centre bore of end cap, ensures the sealing between metal tube 9 and centre bore 8a hole wall simultaneously, so just can form vacuum area between metal tube 9 and cover glass tube 1.Particularly, can arrange on centre bore hole wall sealing ring or directly by metal tube 9 seal welding in the centre bore of the first end cap, sealing gasket is set between the first end cap and cover glass tube 1 openend or the first end cap and cover glass tube is bonded together by hot-pressed material sealing.Now, the openend of metal tube is communicated with outside heating agent working medium operational system, and the heating agent working medium in metal tube realizes circulating by upper and lower free convection and outside heating agent working medium operational system.As required, metal tube 9 also can be set for both ends open, corresponding is also set to both ends open by cover glass tube 1, first end cap of its openend of sealing is all set at the two ends of cover glass tube 1, and metal tube 9 sealing is arranged in the centre bore of two the first end caps, two openends of metal tube are communicated with outside heating agent working medium operational system respectively, are realized the circulation of heating agent working medium by the EGR in outside heating agent working medium operational system.
In the present embodiment, when being linked together by end cover structure between cover glass tube 1 and endothermic tube 2, a sleeve 11 given prominence to laterally can be set at the centre bore 8a place of end cap, driving member 4 is fixed on this sleeve 11, drives whole cover glass tube 1 to rotate to facilitate solar tracking device by this driving member 4.
In the above-described embodiments, when endothermic tube 2 directly replaces with metal tube 9, metal tube 9 sealing two ends can be set; Now heating agent working medium 3 is in the flowing of metal tube 9 inner sealing, and the heating agent working medium 3 of metal tube 9 inside preferably adopts low-boiling liquid (as freon, ethanol etc.).Wherein one end of metal tube 9 to be inserted in cover glass tube 1 and to be positioned at the focal position of the reflective coating of cover glass tube 1, and the other end of metal tube 9 can insert in the insulation header of outside heating agent working medium operational system.After the heating agent working medium 3 of metal tube 9 pipeline section being positioned at cover glass tube is absorbed heat, vaporization forms gas, gas flow is to the other end of metal tube 9 being positioned at cover glass tube outside, and carry out heat exchange with the liquid in insulation header, now gas is condensed into liquid heating agent working medium 3 again, simultaneously release heat pass to insulation header in liquid, using as thermal source for other solar products.And the heating agent working medium 3 of liquid is back to metal tube 9 pipeline section being positioned at cover glass tube, so go round and begin again circulation, and the heat energy produced by thermal-collecting tube exports.
As shown in Figure 6, in the above-described embodiments, when metal tube 9 for one end open or metal tube be sealing two ends time, cover glass tube also can be set to both ends open.Equally, the first end cap 8, first end cap central arranging sealing its openend 1a at the upper open end 1a of cover glass tube is provided with centre bore 8a, and metal tube 9 is fixed in the centre bore of end cap 8, ensures the sealing between metal tube 9 and centre bore 8a hole wall simultaneously; And the lower open end 1b of cover glass tube arrange sealing lower open end the second end cap 8a, the processing of such cover glass tube is more simple, do not need add carry out man-hour sealing process, after cover glass tube completes, directly utilize end cap to carry out sealing.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (9)
1. an internal focusing vacuum solar heat collecting pipe, it is characterized in that, comprise the vacuum (-tight) housing glass tube that is provided with reflexed light film and be arranged on the endothermic tube being positioned at described reflexed light film focal position in described vacuum (-tight) housing glass tube, in described endothermic tube, being provided with the heating agent working medium of flowing; Described vacuum (-tight) housing glass tube comprises reflecting segment, and the cross sectional shape of described reflecting segment is set to multistage arc and closes and be connected to form, and described reflexed light film is arranged on the reflecting segment inner surface wherein corresponding to one section of arc, and this arc is reflex arc line segment; The transition arcs line segment that described multistage arc comprises two sections of symmetrically arranged symmetrical arc line segments and coupled together by described symmetrical arc line segment, the symmetrical center line of described symmetrical arc line segment overlaps with the diameter of described endothermic tube, and described reflex arc line segment is a wherein symmetrical arc line segment; The driving member driven by solar tracking device is also provided with outside described vacuum (-tight) housing glass tube;
Two sections of described symmetrical arc line segments are respectively circular arc, and two sections of described symmetrical arc line segments are respectively arc
with
arc
the center of circle for some an O, radius is R, with an O for initial point sets up XOY plane rectangular coordinate system; The cross sectional shape of described endothermic tube is circle, and the center of circle of this circle is O ', meets isosceles right angle trigonometry type ABC, the base of described isosceles right triangle in doing in this circle
be parallel to X-axis and cross center of circle O ', B point in y-axis, B point coordinates be (0, b); 0.52R≤b≤0.98R.
2. internal focusing vacuum solar heat collecting pipe according to claim 1, is characterized in that, described transition arcs line segment is circular arc line segment.
3. internal focusing vacuum solar heat collecting pipe according to claim 1, is characterized in that, the one end open of described endothermic tube and the other end is closed, and this openend is communicated with outside heating agent working medium operational system.
4. internal focusing vacuum solar heat collecting pipe according to claim 1, it is characterized in that, the both ends open of described endothermic tube, two openends of described endothermic tube are respectively and are communicated with the port of export with the entrance point of outside heating agent working medium operational system.
5. internal focusing vacuum solar heat collecting pipe according to claim 4, it is characterized in that, the part described endothermic tube being positioned at cover glass tube is provided with special-shaped ball.
6. internal focusing vacuum solar heat collecting pipe according to claim 3 or 4, it is characterized in that, the linkage section that openend and the cover glass tube of described endothermic tube are arranged by cover glass tube end is connected, one end of described linkage section is connected with described cover glass tube reflecting segment rounding off and the other end is connected with the openend of described endothermic tube, and described link and described endothermic tube are coaxially arranged.
7. internal focusing vacuum solar heat collecting pipe according to any one of claim 1 to 5, is characterized in that, is also provided with the metal tube being close to described endothermic tube inwall in described endothermic tube, and described heating agent working medium is arranged in described metal tube.
8. internal focusing vacuum solar heat collecting pipe according to any one of claim 1 to 2, is characterized in that, described endothermic tube is metal tube, and described cover glass tube is at least provided with an openend, and the sealing of described openend is provided with the first end cap; Described endothermic tube is positioned at the focal position of cover glass tube reflecting segment by described first end cap, and described first end cap central is provided with the centre bore passed for described endothermic tube, and between described endothermic tube and described end cap central bore, sealing is arranged.
9. internal focusing vacuum solar heat collecting pipe according to any one of claim 1 to 2, it is characterized in that, described endothermic tube is metal tube, and described cover glass tube is provided with two openends, described upper open end sealing is provided with the first end cap, and described lower open end sealing is provided with the second end cap; Described endothermic tube is positioned at the focal position of cover glass tube reflecting segment by described first end cap, and described first end cap central is provided with the centre bore passed for described endothermic tube, and between described endothermic tube and described end cap central bore, sealing is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010577171.2A CN102486343B (en) | 2010-12-06 | 2010-12-06 | Inner light-gathering vacuum solar heat collection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010577171.2A CN102486343B (en) | 2010-12-06 | 2010-12-06 | Inner light-gathering vacuum solar heat collection pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102486343A CN102486343A (en) | 2012-06-06 |
| CN102486343B true CN102486343B (en) | 2015-04-15 |
Family
ID=46151868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010577171.2A Active CN102486343B (en) | 2010-12-06 | 2010-12-06 | Inner light-gathering vacuum solar heat collection pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102486343B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2690807Y (en) * | 2004-02-13 | 2005-04-06 | 北京桑达太阳能技术有限公司 | Internal light focusing solar energy collecting tube |
| CN1743755A (en) * | 2005-10-12 | 2006-03-08 | 沈金锐 | Internal light-focusing vacuum solar heat collecting pipe |
| CN2814254Y (en) * | 2005-08-29 | 2006-09-06 | 王学明 | Reflective light-gathering solar vacuum tube |
| CN200946924Y (en) * | 2006-08-21 | 2007-09-12 | 河海大学 | Inner expansion closed vacuum heat-collecting tube for utilizing solar energy |
| CN101082450A (en) * | 2007-05-29 | 2007-12-05 | 施跃江 | Inner condensation light type metal-glass vacuum tube |
| CN201412984Y (en) * | 2009-01-06 | 2010-02-24 | 华洪林 | Parabolic reflector plate capable of tracking sunlight on heat collecting device of solar water heater |
| CN201885469U (en) * | 2010-12-06 | 2011-06-29 | 徐盛之 | Internal light-focusing vacuum solar heat collecting pipe |
-
2010
- 2010-12-06 CN CN201010577171.2A patent/CN102486343B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2690807Y (en) * | 2004-02-13 | 2005-04-06 | 北京桑达太阳能技术有限公司 | Internal light focusing solar energy collecting tube |
| CN2814254Y (en) * | 2005-08-29 | 2006-09-06 | 王学明 | Reflective light-gathering solar vacuum tube |
| CN1743755A (en) * | 2005-10-12 | 2006-03-08 | 沈金锐 | Internal light-focusing vacuum solar heat collecting pipe |
| CN200946924Y (en) * | 2006-08-21 | 2007-09-12 | 河海大学 | Inner expansion closed vacuum heat-collecting tube for utilizing solar energy |
| CN101082450A (en) * | 2007-05-29 | 2007-12-05 | 施跃江 | Inner condensation light type metal-glass vacuum tube |
| CN201412984Y (en) * | 2009-01-06 | 2010-02-24 | 华洪林 | Parabolic reflector plate capable of tracking sunlight on heat collecting device of solar water heater |
| CN201885469U (en) * | 2010-12-06 | 2011-06-29 | 徐盛之 | Internal light-focusing vacuum solar heat collecting pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102486343A (en) | 2012-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102606430B (en) | Separately running disc-type solar concentrated power generating system | |
| CN104567026A (en) | Solar thermal collector and method for converting solar energy into mesothermal heat energy by utilizing same | |
| CN102439377A (en) | Solar energy collecting system and method | |
| Kalogirou | Nontracking solar collection technologies for solar heating and cooling systems | |
| CN201093775Y (en) | Glass vacuum metal tube type solar heat collector | |
| CN112344567A (en) | Compact tracking type composite light-gathering solar heat collection system | |
| CN113899109B (en) | Efficient integrated system for medium-temperature heating and sky radiation refrigeration by utilizing solar radiation | |
| CN102207344A (en) | Bimirror focusing solar refrigeration device | |
| CN2384176Y (en) | Heat pipe solar heat collector | |
| CN102943548B (en) | Construction curtain wall type flat-plate solar heat collector | |
| CN105485936B (en) | Two-dimensional sun-tracing energy beam condensing unit | |
| CN104048429B (en) | A kind of for high temperature cavity type thermal-collecting tube in slot type collecting system | |
| CN103216953A (en) | Flat plate solar heat collector | |
| CN201885469U (en) | Internal light-focusing vacuum solar heat collecting pipe | |
| CN202141223U (en) | Linear Fresnel solar energy collection module | |
| CN2249389Y (en) | Omnibearing light-collecting water-ball solar water heater | |
| CN102486343B (en) | Inner light-gathering vacuum solar heat collection pipe | |
| CN101776325B (en) | Compound parabolic condenser combining inside condensation and outside condensation | |
| CN205505442U (en) | Solar energy beam condensing unit is trailed to two dimension | |
| CN101781915A (en) | Solar energy wall body heat utilization system | |
| CN104729127B (en) | Eccentric internal focusing vacuum thermal-collecting tube and its heat collecting method | |
| CN204329362U (en) | A kind of for high temperature cavity type thermal-collecting tube in slot type collecting system | |
| CN219640464U (en) | Energy gathering device of Fresnel columnar lens array | |
| CN207162981U (en) | A kind of two level curved surface Fresnel reflection formula solar energy cavity heat collector | |
| TWI321639B (en) | A compound arc light-concentrating and heat-collecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180525 Address after: 518111 33 Pinghu new street, Longgang District, Shenzhen, Guangdong. Patentee after: Nansu Building Material and Plastic Product (Shenzhen) Co., Ltd. Address before: 518028 Room 301, 37 yuan Ling new village, Futian District, Shenzhen, Guangdong. Patentee before: Xu Shengzhi |