CN203240812U - Solar heat collection device with liquid storage groove-shaped object arranged inside glass heat tube of heat collection element - Google Patents
Solar heat collection device with liquid storage groove-shaped object arranged inside glass heat tube of heat collection element Download PDFInfo
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- CN203240812U CN203240812U CN2013202087867U CN201320208786U CN203240812U CN 203240812 U CN203240812 U CN 203240812U CN 2013202087867 U CN2013202087867 U CN 2013202087867U CN 201320208786 U CN201320208786 U CN 201320208786U CN 203240812 U CN203240812 U CN 203240812U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
A solar heat collection device with a liquid storage groove-shaped object arranged inside a glass heat tube of a heat collection element comprises a full-glass vacuum heat pipe heat collection pipe, a support and an insulation water tank or connection box, and is characterized in that the annular liquid storage groove-shaped object is contained inside the heat end of an integrated glass heat pipe or an insertion type glass heat pipe of the heat pipe heat collection pipe. The annular liquid storage groove-shaped object comprises a liquid storage space or a space which is used for storing liquid and formed due to the changes of space states of the glass heat pipe. The solar heat collection device has the advantages that when the Sun goes down, a working medium in the glass heat pipe is raised by the annular liquid storage groove-shaped object. Compared with a light pipe, the glass heat pipe has the advantage that the starting time in winter is shortened from over 140min to over 20min. No working medium exists in the annular liquid storage groove-shaped object when the glass heat pipe operates, the filling amount of the working medium in the glass heat pipe is not increased, and internal pressure of the heat pipe keeps at a low position when air drying is conducted.
Description
Technical field
The utility model relates to the solar energy heat collector of the built-in hopper shape of heat collecting element glass heat pipe thing.
Background technology
The solar water appliance of heat-pipe vacuum heat collecting pipe manufacturing have in the pipe anhydrous Energy Efficiency Ratio high, meet safe drinking water standard, single tube and damage the advantage such as in the same old way work.Therefore.Anhydrous solar vacuum hot water device might capture the increasing market share in the pipe.
Existing a kind of workload fills all-glass heat pipe vacuum collector tube solar water heater seldom, and heat pipe inner wall adopts light-pipe structure, heat-pipe vacuum heat collecting pipe about 45 degree that tilt to install.Under non-heat exchange state, can observe the heat pipe bottom has liquid refrigerant to gather.
It is carried out and the all-glass vacuum thermal-collecting tube solar water heater check experiment of managing interior water, find that the intensification situation of heat pipe solar energy water heater is slow soon rear first.Judgement is that the heat pipe start-up course is long, the startup stage of heat pipe, the heat collector tube product can not Operation at full power thereby heat up slow, heat pipe heat collecting device Operation at full power thereby quick heating after heat pipe starts.
The heat pipe of investigating all-glass heat pipe vacuum collector tube starts: because it is common because its temperature of minute surface shading that is formed by getter rises slowly, so that these liquid refrigerants can not participate in rapidly the two phase flow heat transfer circulation to be collected in the working medium of heat pipe bottom.Simultaneously, though because the temperature at inner other positions, heat pipe hot junction is high is in dry state and can not contributes to thermal-arrest within a very long time.Rely on later on the glass heat pipe tube wall heat transfer near the bottom to make gradually liquid refrigerant vaporization and circulation participate in two phase flow heat transfer, heat pipe is finished start-up course and is entered normal operating conditions.Problem is in the winter time, and the start-up course of heat pipe may continue more than two hours, and this is so that the performance of some glass heat pipe thermal-collecting tube can not be obviously good than the all-glass vacuum thermal-collecting tube of managing interior water, and the advantage of heat pipe fails to give full play to.
Glass surface is not suitable for processing stria to form larger capillary lift.
Employing arranges to have enough large-area core nets at the glass heat pipe inner surface, although can utilize capillarity to solve the long problem of heat pipe start-up course, but can make cost a larger increase, more seriously also can fill more, the too high greatly increase that has a big risk that causes the bombing accident of vapour pressure when making air drying of working medium because of inside.When 0.2% when for example working medium filling weight/heat pipe plot ratio is from 2 milliliters/1000 milliliters are brought up to 5 milliliters/1000 milliliters 0.5%, the highest saturated vapor pressure increases to about 10 atmospheric pressure of 180 ℃ from about 3.7 atmospheric pressure of 140 ℃, but inside heat pipe when continuing to be warming up to 180 ℃ from 140 ℃ of about 3.7 atmospheric high-vapor-pressures internal pressure only have about 4 atmospheric pressure.Because the glass voltage endurance capability is limited, so the liquid refrigerant position height start quickly in the time of should managing to raise heat pipe and start the least possiblely when heat pipe work is again held back liquid refrigerant with minimizing working medium filling weight.
Chinese invention patent 200410012193.9 Explosion-proof all-glass solar energy vacuum collecting tubes have disclosed a kind of Explosion-proof all-glass solar energy vacuum collecting tube, and the liquid refrigerant filling weight is 0.1～0.5%V in its heat pipe, and wherein V is the volume in the heat pipe.All be converted into vapour phase when making it reach a certain critical-temperature, when temperature continued to raise, pressure raise according to the rule of vapour phase, thereby had significantly reduced the operating pressure in the heat pipe under the condition of high temperature ...Simultaneously, in heat pipe, set up sorbing material, to guarantee that heat pipe quick starts again.But this patent of invention comprises that in heat pipe sorbing material sticking working medium that heat pipe evaporator section middle part arranges adds quick heating pipe and starts this mode and still can bring when increasing working medium filling weight and air drying internal pressure or start still slower problem.Suppose: originally set and be limited to 4 atmospheric pressure, 230 ℃ of air drying maximum temperatures, water on 4.4 millimeters of inner glass tube internal diameters, 58 millimeters of cover glass tube external diameters, long 2 meters the internal pressure of all-glass vacuum solar energy collection tube and make working medium, can be calculated about 3 liters of inner glass tube volume.Look into the saturated vapor pressure table of water vapour as can be known: whole working medium filling weight of working medium vaporization just in the time of 135 ℃, its saturated vapor pressure is 3.2 atmospheric pressure and when 230 ℃ of the highest air drying temperature, internal pressure reaches 4 atmospheric pressure and namely equals the inner glass tube internal pressure limit.And the quality volumetric ratio of steam is 1.7 milliliters/liter can check in 135 ℃ the time.The working medium filling weight of this thermal-collecting tube is 1.7 milliliters/liter=5.1 milliliters of 3 liters of *.(5.1 milliliters of working medium are on the low side for existing thermal-collecting tube, can occur drying up in the bottom, hot junction, but this problem do not done expansion here).At this moment, quick heating pipe starts and imbibition material is set in the middle part of inside heat pipe in order to add.Suppose that the imbibition material that increases carries sticking altogether 1.5 milliliters of working medium have been arranged when heat pipe works, and therefore aggravate inside heat pipe hot junction dry-out, dry hot junction does not participate in heat exchange has a greatly reduced quality the efficient of thermal-collecting tube.For fear of the heat-collecting capacity loss that brings because the hot junction is dry.Must increase the working medium filling weight remedies heat pipe when work and is put forward the part working medium that sticking has by imbibition material.Suppose that the working medium filling weight that increases also is 1.5 milliliters, the quality volumetric ratio of the steam when then working medium is just all vaporized from 1.7 milliliters/go up and rise to 2.2 milliliters/liter, the critical-temperature that the highest saturated vapor pressure at this moment is corresponding rises to 145 ℃ from 135 ℃; Correspondingly, when 230 ℃ of the highest air drying temperature, inside heat pipe pressure is increased to 5 atmospheric pressure from 4 atmospheric pressure.Conclusion is: increase imbibition material and increase the working medium filling weight in order to accelerate to be enabled in middle part, heat pipe hot junction, under the highest air drying temperature, the pressure of thermal-collecting tube inside can increase to 5 atmospheric pressure from 4 atmospheric pressure above original pressure of setting and exceed 25%; Be equivalent to reduce winter a day heat-collecting capacity 35% and will prolong two hours without imbibition material heat pipe start-up course.Also have, only 1.5 milliliters of working medium of sticking are still not enough for sorbing material.
Summary of the invention
The purpose of this utility model is the solar energy heat collector that the built-in hopper shape of heat collecting element glass heat pipe thing will be provided.
One of the technical scheme in the invention for solving the technical problem: make the solar energy heat collector of the built-in hopper shape of a heat collecting element glass heat pipe thing, comprise all-glass vacuum solar energy collection tube, tail box, support, annex, adiabatic water tank or connection collection box.The effective cover glass tube of all-glass vacuum heat collector tube and the sealing-in of inner glass tube nested arrangement are made, inner glass tube stretches out from sealing-in place, a heat pipe is made in sealed-off after the inner vacuum pumping loading working medium of inner glass tube, and inner glass tube is that the outer surface of glass heat pipe is made absorbing film.Vertical or the installation of tilting of described integrated glass hot pipe solar heat collecting element.Glass heat pipe relies on gravity work.Annular hopper shape thing is contained in inside, glass heat pipe hot junction, and annular hopper shape thing contains the space of storing liquid or annular hopper shape thing forms storing liquid because of the change of glass heat pipe spatiality space; Annular hopper shape thing overlays in heat pipe hot junction inwall with elastic circlip; Perhaps annular hopper shape thing dependence self elasticity overlays in heat pipe hot junction inwall.Annular hopper shape thing from the spacing distance of described heat pipe bottom greater than 40 millimeters less than 20% of heat pipe hot junction total length; And annular hopper shape thing from the average vertical spacing distance of solar collection element tail end getter minute surface upper edge hole greater than 20 millimeters.
Can also make the relative cover glass tube arranged off-centre of inner glass tube of described all-glass vacuum solar energy collection tube; Described inner glass tube is connected with semicircle minute surface optically focused on being made in cover glass tube; Perhaps described inner glass tube is connected in the additional semicircle minute surface optically focused that connects on the cover glass tube with a cooperation and is connected.
Two of the technical scheme in the invention for solving the technical problem: the solar energy heat collector of making the built-in hopper shape of a heat collecting element glass heat pipe thing, comprise plug-in type all-glass vacuum solar energy collection tube, tail box, support, annex, adiabatic water tank or connection collection box, plug-in type all-glass vacuum solar energy collection tube is connected with the insertion type glass heat pipe that inserts its inner glass tube inner chamber by an all-glass vacuum thermal-collecting tube or low thermal resistance is connected and makes the vertical or installation of tilting of described insertion type glass hot pipe solar heat collecting element.Described insertion type glass heat pipe relies on gravity work.Annular hopper shape thing is contained in inside, insertion type glass heat pipe hot junction.Annular hopper shape thing contains the space of storing liquid or annular hopper shape thing forms storing liquid because of the change of insertion type glass heat pipe spatiality space; Annular hopper shape thing overlays in plug-in type heat pipe hot junction inwall with elastic circlip; Perhaps annular hopper shape thing dependence self elasticity overlays in heat pipe hot junction inwall; Annular hopper shape thing from the spacing distance of insertion type glass heat pipe bottom greater than 40 millimeters less than 20% of insertion type glass heat pipe hot junction total length; And annular hopper shape thing from the average vertical spacing distance of solar collection element tail end getter minute surface upper edge hole greater than 20 millimeters.
Can also make described annular hopper shape thing is one section helical form object, and the angle of circumference between the described helical form object front and back end is more than or equal to 400 degree; The annular object that perhaps to make described annular hopper shape thing be a closure.
Can also make described annular hopper shape thing along the circumferential layout of heat pipe inner wall, the angle of circumference of described annular hopper shape thing contains mark or the peephole corresponding with described annular hopper shape thing installation site less than 360 degree on the inner glass tube absorbing film of heat collecting element or at heat collection element cover glass pipe.During convenient the installation annular hopper shape thing is placed bottom the thermal-collecting tube.
Can also make: 40 ± 5 ℃ of the water temperatures in 700 ± 50 watts/square metre of solar radiation quantities, the heat pipe cold junction outside, heat collecting element axial line be that the north-south is in tilted layout and the angle of its axial line and incident sunlight in 90 ± 20 ° of scopes under the condition, described annular hopper shape thing is held 25% of the quality of liquid refrigerant≤its maximum liquid refrigerant volume of holding.
Can also make: the maximum liquid refrigerant volume of holding of described annular hopper shape thing 〉=4 milliliters; 40 ± 5 ℃ of the water temperatures in 700 ± 50 watts/square metre of solar radiation quantities, the heat pipe cold junction outside, heat collecting element axial line be that the north-south is in tilted layout and the angle of its axial line and incident sunlight in 90 ± 20 ° of scopes under the condition, described annular hopper shape thing is held the quality of liquid refrigerant≤0.9 milliliter.
The beneficial effects of the utility model: the all-glass vacuum heat collector tube tube solar heat-collecting device that the utility model adopts low glass heat pipe solar collection element of putting annular hopper shape thing to make, when the sun sets, the reverse work of glass heat pipe: the evaporation of the liquid refrigerant of the former heat pipe cold junction inner surface that is connected with the heating load low thermal resistance is also condensed at former heat pipe hot junction inner surface, thereby gathers more and be trapped during the annular hopper shape thing of downward trickling arrival and raised the working medium position when former heat pipe hot junction inner surface liquid refrigerant.The second day sun is out the time, and in a single day the heat pipe hot junction is heated, rapidly evaporation and participate in two phase flow heat transfer of the liquid refrigerant of being held back by annular hopper shape thing.Further analyze as can be known: because the residing inner glass tube of annular hopper shape thing directly absorbs solar energy, the heat energy of its above and below absorbing film absorption also can conduct heat simultaneously.In winter, the annular hopper shape thing of a sheet copper manufacturing is in that it is subjected to thermal power to be equivalent to former light pipe heat pipe to be in the getter minute surface and only to pass thermogenetic about 7 times of the thermal powers that are subjected to by absorbing film above it by glass tube among surrounding under the typical set heat condition.Originally light pipe heat pipe start-up course needs more than 140 minute, now with foreshortening to more than 20 minute behind the annular hopper shape thing, is equivalent to many thermal-arrests more than hour every day in winter.When daytime, heat collecting element worked, all working medium participated in the two phase flow heat transfers circulation, and liquid refrigerant can not retained in annular hopper shape thing inside.Because annular hopper shape thing only has an appointment 45 millimeters from bottom, heat pipe hot junction, even the solar thermal energy that the dry relevant absorbing film of these 45 millimeters sections absorbs also can come the effective participation heat exchange to the heat transfer of annular hopper shape thing by glass tube.Increase like this problem of working medium filling weight with regard to not existing because use annular hopper shape thing, started thereby both accelerated to greatest extent heat pipe; The pressure of glass heat pipe inside keeps low level when making air drying again.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the vacuous solar energy heat collector structural representation of the built-in hopper shape of a heat collecting element integrated glass heat pipe thing.
Fig. 2 is the vacuous solar energy heat collector structural representation of the built-in hopper shape of a heat collecting element insertion type glass heat pipe thing.
Fig. 3 is the vacuous solar energy heat collector structural representation of the built-in hopper shape of an eccentric heat collecting element insertion type glass heat pipe thing.
1. all-glass vacuum solar energy collection tubes among the figure; 2. connection collects box; 3. tail box; 4. cover glass tube; 5. inner glass tube; 6. heat pipe; 7. annular hopper shape thing; 8. fine line; 9. groove; 10. dotted line; 11. all-glass vacuum thermal-collecting tube; 12. Thermal Conduction Equipment; 13. eccentric all-glass vacuum thermal-collecting tube; 14. semicircle minute surface.
The specific embodiment
Fig. 1 provides first embodiment of the present utility model.
Among Fig. 1, with all-glass vacuum solar energy collection tube 1, connection collection box 2, tail box 3, form the vacuous solar energy heat collector of the built-in hopper shape of a heat collecting element integrated glass heat pipe thing.All-glass vacuum solar energy collection tube 1 usefulness cover glass tube 4 and inner glass tube 5 nested, concentric arrange that sealing-in makes, inner glass tube 5 from sealing-in place stretch out forward and inner vacuum pumping loading working medium after sealed-off make a heat pipe 6, the length in heat pipe 6 hot junctions is 1.8 meters.Inner glass tube 5 is that the outer surface of heat pipe 6 is manufactured with absorbing film.Heat pipe 6 relies on gravity work.Inside, heat pipe 6 hot junction is provided with annular hopper shape thing 7.
Annular hopper shape thing 7 be one section with the pipe of flange, its axial cross section is " L " type.One side of L-type is fitted and connected dependence self elasticity with heat pipe 6 hot junction inwalls and overlays in heat pipe hot junction inwall; It is inner that another side stretches to heat pipe 6 hot junctions from following form with approximate right angle.
Annular hopper shape thing 7 is from 45 millimeters of the distances of heat pipe 6 bottoms.The vertical range of the upper edge hole of the thermal-collecting tube getter minute surface that annular hopper shape thing 7 indicates from fine line 8 is greater than 20 millimeters.Side by side outside arrow represents the cold junction position of heat pipe 6 among Fig. 1.
When the all-glass vacuum solar energy collection tube 1 of Fig. 1 embodiment turns clockwise about 45 degree inclination installation, heat pipe 6 can rely on gravity to realize the two phase flow cycle heat exchange, solar thermal energy is passed to heating load by cold junction continuously, the coolant-temperature gage of connection collection box 2 inside is risen.
When the all-glass vacuum solar energy collection tube 1 of Fig. 1 embodiment turns clockwise about 45 degree inclination installation, annular hopper shape thing 7 is in, and L-shaped position, below forms a groove 9, groove 9 can be held back liquid refrigerant when heat pipe 6 is not worked, improve the working medium that is collected in heat pipe 6 bottoms originally; And when being conducive to heat pipe 6 and starting from top and below absorb simultaneously solar thermal energy and accelerate startup.The high liquid level (HLL) of the liquid in the groove 9 is in position shown in the dotted line 10.
Among Fig. 1 embodiment, annular hopper shape thing 7 adopts sheet copper to be manufactured with and helps improve glass tube walls heat pipe 6 hot junctions from top solar light irradiation to the heat-transfer behavior the following working medium.So allow below it 45 millimeters during heat pipe 6 normal operation sections be dry or part is dry to make annular hopper shape thing 7 when heat pipe is worked, not hold working medium.When the sun set, the evaporation of the condensate water of heat pipe 6 cold junction inner surfaces comprised that the whole or most working medium of all working medium of this part working medium are held back by annular hopper shape thing 7.
Fig. 2 provides second embodiment of the present utility model.
Among Fig. 2, with plug-in type all-glass vacuum solar energy collection tube, connection collection box 2, tail box 3, form the vacuous solar energy heat collector of the built-in hopper shape of a heat collecting element insertion type glass heat pipe thing.Plug-in type all-glass vacuum solar energy collection tube is connected by two Thermal Conduction Equipment 12 low thermal resistances with the glass shell heat pipe 6 that inserts its inner glass tube 5 inner chambers by an all-glass vacuum thermal-collecting tube 11 to be made.Heat pipe 6 relies on gravity work.Inner bottom place, heat pipe 6 hot junction is provided with an annular hopper shape thing 7.
Fig. 3 provides the 3rd embodiment of the present utility model.
Among Fig. 3, with the eccentric all-glass vacuum solar energy collection tube of plug-in type, connection collection box 2, tail box 3, form the vacuous solar energy heat collector of the built-in hopper shape of an eccentric heat collecting element insertion type glass heat pipe thing.The eccentric all-glass vacuum solar energy collection tube of plug-in type is comprised of with an insertion type glass housing heat pipe 6 that inserts its inner glass tube 5 inner chambers an eccentric all-glass vacuum thermal-collecting tube 13.Heat pipe 6 inner bottom places are provided with an annular hopper shape thing 7.Inner glass tube 5 relative cover glass tube 4 arranged off-centre of eccentric all-glass vacuum thermal-collecting tube 13 and inner glass tube 5 are connected with semicircle minute surface 14 optically focused on being made in cover glass tube 4.
Claims (2)
1. the solar energy heat collector of the built-in hopper shape of heat collecting element glass heat pipe thing comprises all-glass vacuum solar energy collection tube, tail box, support, annex, adiabatic water tank or connection collection box; The effective cover glass tube of all-glass vacuum heat collector tube and the sealing-in of inner glass tube nested arrangement are made, inner glass tube stretches out from sealing-in place, a heat pipe is made in sealed-off after the inner vacuum pumping loading working medium of inner glass tube, and inner glass tube is that the outer surface of glass heat pipe is made absorbing film; Glass heat pipe relies on gravity work, it is characterized in that inside, glass heat pipe hot junction contains annular hopper shape thing, annular hopper shape thing contains the space of storing liquid or annular hopper shape thing forms storing liquid because of the change of glass heat pipe spatiality space; Annular hopper shape thing overlays in heat pipe hot junction inwall with elastic circlip; Perhaps annular hopper shape thing dependence self elasticity overlays in heat pipe hot junction inwall; Annular hopper shape thing from the spacing distance of described heat pipe bottom greater than 40 millimeters less than 20% of heat pipe hot junction total length; And annular hopper shape thing from the average vertical spacing distance of solar collection element tail end getter minute surface upper edge hole greater than 20 millimeters.
2. according to solar energy heat collector claimed in claim 1, it is characterized in that the relative cover glass tube arranged off-centre of inner glass tube of described all-glass vacuum solar energy collection tube; Described inner glass tube is connected with semicircle minute surface optically focused on being made in cover glass tube; Perhaps described inner glass tube is connected in the additional semicircle minute surface optically focused that connects on the cover glass tube with a cooperation and is connected.
3. the solar energy heat collector of the built-in hopper shape of heat collecting element glass heat pipe thing comprises all-glass vacuum solar energy collection tube, tail box, support, annex, adiabatic water tank or connection collection box; Plug-in type all-glass vacuum solar energy collection tube is connected with the insertion type glass heat pipe that inserts its inner glass tube inner chamber by an all-glass vacuum thermal-collecting tube or low thermal resistance is connected and makes, the insertion type glass heat pipe relies on gravity work, it is characterized in that inside, insertion type glass heat pipe hot junction contains annular hopper shape thing, annular hopper shape thing contains the space of storing liquid or annular hopper shape thing forms storing liquid because of the change of insertion type glass heat pipe spatiality space; Annular hopper shape thing overlays in plug-in type heat pipe hot junction inwall with elastic circlip; Perhaps annular hopper shape thing dependence self elasticity overlays in heat pipe hot junction inwall; Annular hopper shape thing from the spacing distance of insertion type glass heat pipe bottom greater than 40 millimeters less than 20% of insertion type glass heat pipe hot junction total length; And annular hopper shape thing from the average vertical spacing distance of solar collection element tail end getter minute surface upper edge hole greater than 20 millimeters.
4. according to claim 1 or 3 described solar energy heat collectors, it is characterized in that described annular hopper shape thing is one section helical form object, the angle of circumference between the described helical form object front and back end is more than or equal to 400 degree; The perhaps described annular hopper shape thing annular object that is a closure.
5. according to claim 1 or 3 described solar energy heat collectors, it is characterized in that described annular hopper shape thing is along the circumferential layout of heat pipe inner wall, the angle of circumference of described annular hopper shape thing contains mark or the peephole corresponding with described annular hopper shape thing installation site less than 360 degree on the inner glass tube absorbing film of heat collecting element or at heat collection element cover glass pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202087867U CN203240812U (en) | 2013-04-22 | 2013-04-22 | Solar heat collection device with liquid storage groove-shaped object arranged inside glass heat tube of heat collection element |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202087867U CN203240812U (en) | 2013-04-22 | 2013-04-22 | Solar heat collection device with liquid storage groove-shaped object arranged inside glass heat tube of heat collection element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225888A (en) * | 2013-04-22 | 2013-07-31 | 施侃超 | Solar heat collection device of a liquid storage groove-shaped substance arranged in a heat collection element glass heat pipe |
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2013
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225888A (en) * | 2013-04-22 | 2013-07-31 | 施侃超 | Solar heat collection device of a liquid storage groove-shaped substance arranged in a heat collection element glass heat pipe |
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Granted publication date: 20131016 Termination date: 20140422 |