CN102393091A - Load-bearing anti-freezing solar thermal collector tube - Google Patents
Load-bearing anti-freezing solar thermal collector tube Download PDFInfo
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- CN102393091A CN102393091A CN2011102970511A CN201110297051A CN102393091A CN 102393091 A CN102393091 A CN 102393091A CN 2011102970511 A CN2011102970511 A CN 2011102970511A CN 201110297051 A CN201110297051 A CN 201110297051A CN 102393091 A CN102393091 A CN 102393091A
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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 invention relates to a load-bearing anti-freezing solar thermal collector tube, which overcomes the problems of the existing solar thermal collector tubes that a glass tube is liable to break and results in water loss of a system, or the glass tube has poor anti-freezing capacity and low heat transfer efficiency. The load-bearing anti-freezing solar thermal collector tube is characterized in that a metal heat exchange tube is inserted into the middle of an all-glass vacuum thermal collector tube, an anti-freezing tapered tube is welded at the bottom end of the metal heat exchange tube, a heat exchange corrugated tube is welded at the upper end of the metal heat exchange tube, a quick-connecting nut is sleeved outside the heat exchange corrugated tube, and a thermal collector water tank connecting tube is connected with the inside of the quick-connecting nut. The invention has the beneficial effects that the structure is simple, the production cost is low, the system can bear load for operation; because the all-glass vacuum thermal collector tube does not contain water, the system can be solarized when emptied and can be filled with water at any time without causing tube breaking; because the anti-freezing tapered tube is welded at the bottom end of the metal heat exchange tube, the anti-freezing capacity is strong, power consumption anti-freezing measures for the system can be saved in winter, so that the solar water heating system is lower in cost, safer in use and more energy-saving; and because the heat exchange corrugated tube is welded at the upper end of the metal heat exchange tube, field installation is more convenient.
Description
Technical field
The invention belongs to the solar energy heat collection pipe technical field, particularly a kind of pressure-bearing type anti-freeze solar thermal-collecting tube.
Background technology
At present, known closing-sunning type solar energy thermal-collecting tube is generally all glass vacuum heat collection tube of solar energy, and it is made up of inside and outside two concentric circles glass tubes, and the coating for selective absorption with high-absorbility and low-launch-rate constitutes absorber on inner tube outer surface; The inside and outside mouth of pipe is given annular sealing by fusing, be pumped into high vacuum between the inner and outer pipes interlayer, its shape is as an elongated inner flask, single-ended opening; During use, fit together the water tank of solar energy heat collection pipe and solar water heater is direct insertion, the silica gel sealing ring sealing-in is adopted in the position that is connected between thermal-collecting tube and the water tank, during work; Water in the water tank directly gets in the thermal-collecting tube, through the photo-thermal conversion, shines heat to the water in the thermal-collecting tube; Again with water tank in water carry out exchange heat, under passive state, fall into water to use, promptly the water in the water tank relies on drop to flow out to supply the user to use; For some reason, such as operate a switch have a power failure or cut off the water after, only exist the water in water tank and the thermal-collecting tube to evaporate rapidly; Be in anhydrous state in the pipe and make, because solar energy heat collection pipe, is managed interior temperature and can be reached about 260 ℃ after 30 minutes in solar radiation; Suddenly go up water this moment, and running water gets in the thermal-collecting tube, can cause thermal shock; Cause the glass tube bombing, owing to solar energy heat collection pipe directly is communicated with the water tank of solar water heater, even if there is a thermal-collecting tube to damage; Then the water in the water tank just can all flow out, and causes system to metal run out, and causes making systemic breakdown.
In order to address this problem, the full pressure-bearing solar water heater of heat of transformation conduction has appearred in the prior art, there is not liquid in this solar water heater vacuum-tube, so can bear pressure.But because the full pressure-bearing solar water heater heat collection pipe of heat of transformation conduction is by vacuum tube, heat of transformation conduit and is installed in the heat of transformation supravasal heat transfer aluminium wing and the heat transfer blind pipe that is arranged in the water tank constitutes, thereby complex structure, production cost are high; Since the full pressure-bearing solar water heater of heat of transformation conduction is a heat of transformation conduit (or claim super heat-conductive pipe) receive solar thermal energy through vacuum heat collection pipe after, make the evaporation rapidly of being heated of special working medium in the super heat-conductive pipe, be flushed to the condensation end at heat pipe top with heat energy; Heat is passed to the heat transfer blind pipe that is arranged in the water tank; Again through the heat transfer blind pipe to the water heat release, carry out exchange heat with water in the water tank, the working medium cooling becomes liquid and gets back to the heat pipe bottom again; Heated by vacuum heat collection pipe again; Repeat said process, the water in the water tank is heated gradually, thereby heat transfer efficiency is low.
In order to address the above problem, the applicant has tested the anti-bombing solar energy heat collection pipe of a kind of pressure-bearing type, and it is in the middle of all-glass vacuum thermal-collecting tube, to insert the metal heat exchanger tube; And fix with jump ring; Be welded with flat board in metal heat exchanger tube bottom and seal, be welded to connect nut in metal heat exchanger tube upper end, and be threaded with the heat collection water tank tube connector through the attaching nut; During use, be threaded with heat collection water tank through the heat collection water tank tube connector.Though above-mentioned this structure has solved the problem that anti-bombing and system metal run out, in experimentation, find cloudy day more than 6 days continuously under the situation that temperature is lower in the winter time; Water in the metal heat exchanger tube can descend and freezing and expansion by Yin Wendu; Because the dull and stereotyped sealing-strength of heat exchanger tube bottom welding is lower, the water freezing and expansion in the heat exchanger tube makes and seals flat board and at first be out of shape; Even rise and split; Cause intrasystem water to get in the all-glass vacuum thermal-collecting tube easily, cause temperature reduction in the all-glass vacuum thermal-collecting tube, influence the efficiency of heating surface; In addition,, all-glass vacuum thermal-collecting tube is being inserted in the process of metal heat exchanger tube,, also can causing the unexpected damaged of all-glass vacuum thermal-collecting tube sometimes because that when limited, install in the place is inconvenient because the metal heat exchanger tube is long and do not have elasticity.
Summary of the invention
Technical problem to be solved by this invention is, occurs the all-glass vacuum thermal-collecting tube bombing easily and metals run out problem simultaneously overcoming existing closing-sunning type solar energy thermal-collecting tube, solves the antifreeze problem of metal heat exchanger tube, to improve the thermal efficiency and the project installation efficient of system.
The technical solution adopted for the present invention to solve the technical problems comprises all-glass vacuum thermal-collecting tube; In the middle of all-glass vacuum thermal-collecting tube, insert the metal heat exchanger tube; And fix with jump ring; Said metal heat exchanger tube bottom is welded with antifreeze conical pipe, and fast connected nut is welded at the place at metal heat exchanger tube top end opening, and the heat collection water tank tube connector is threaded in fast connected nut.
At said metal heat exchanger tube upper end welding heat exchange bellows; The fast connected nut of suit outside the heat exchange bellows; The flat mouthful rib of bellows is processed on said heat exchange bellows top; The heat collection water tank tube connector that in fast connected nut, is threaded, and installation gathers polytetrafluoroethylsealed sealed circle between the flat mouthful rib of heat collection water tank tube connector and bellows.
The length of said metal heat exchanger tube is 1400mm～1700mm.
The length of said metal heat exchanger tube is 100mm～1300mm, and the length of said heat exchange bellows is 100mm～1600mm.
The invention has the beneficial effects as follows,
(1) the present invention is simple in structure, and production cost is low, because the metal heat exchanger tube is threaded with the heat collection water tank employing or welds; Make system can between 0.6～1.6MPa, stablize bearing operation,, also do not intake owing to do not have water in the all-glass vacuum thermal-collecting tube; So be not afraid of empty the solarization, can not produce bombing, can give the Jia Shui of system at any time; Brought convenience to the user, also solved occur between the solar water heating system thermal-collecting tube pressure unbalanced and silica gel circle that cause leaks a difficult problem;
(2) because the antifreeze conical pipe in order to seal is welded in metal heat exchanger tube of the present invention bottom, the power consumption that can not do system in the winter time is antifreeze, makes the solar water heating system cost lower, and uses safer, more energy-conservation.
(3) owing to weld the heat exchange bellows, do not receive the restriction in place in metal heat exchanger tube upper end, easy for installation, also be convenient to on-the-spot the installation, can not cause the unexpected damaged of all-glass vacuum thermal-collecting tube.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention 1;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the I portion enlarged drawing of Fig. 1;
Fig. 4 is the structural representation of the specific embodiment of the invention 2;
Fig. 5 is the B-B cutaway view of Fig. 4;
Fig. 6 is the C-C cutaway view of Fig. 4;
Fig. 7 is the II portion enlarged drawing of Fig. 4.
Among the figure:
1. heat-insulation layer, 2. heat collection water tank,
3. heat collection water tank tube connector, 4. fast connected nut,
5.-1. the metal heat exchanger tube, 5-2. heat exchange bellows,
6. jump ring, 7. all-glass vacuum thermal-collecting tube,
8. silica gel sealing ring, 9. dustproof wind loop,
10. antifreeze conical pipe, the flat mouthful rib of 11. bellowss,
12. gather polytetrafluoroethylsealed sealed circle, L: tube center distance.
The specific embodiment
The specific embodiment 1
Like Fig. 1, Fig. 2 and shown in Figure 3; The present invention includes all-glass vacuum thermal-collecting tube 7; Be that to insert length in the middle of the all-glass vacuum thermal-collecting tube 7 of 47mm be that 1400mm～1700mm, diameter are the metal heat exchanger tube 5-1 of 15mm～25mm at interior warp, and fixing with jump ring 6, and the antifreeze conical pipe 10 in order to seal is welded in said metal heat exchanger tube 5-1 bottom; Fast connected nut 4 is welded at the place at metal heat exchanger tube 5-1 top end opening, the heat collection water tank tube connector 3 that in fast connected nut 4, is threaded and is connected with heat collection water tank; During use; Metal heat exchanger tube 5-1 of the present invention is threaded with heat collection water tank 2 (if heat collection water tank 2 is undressed screw thread arranged, can heat collection water tank tube connector 3 be welded on the heat collection water tank 2) through heat collection water tank tube connector 3, and with silica gel sealing ring 8 with heat collection water tank tube connector 3 sealing and fixing; Put all-glass vacuum thermal-collecting tube 7 in metal heat exchanger tube 5-1 outside; Tube center distance L is 75mm, in all-glass vacuum thermal-collecting tube 7 peripheries and the outer surface contact site of the heat-insulation layer 1 of heat collection water tank 2 dustproof wind loop 9 is installed again, when system adds water; Water in the heat collection water tank 2 directly gets in the metal heat exchanger tube 5-1 through heat collection water tank tube connector 3; Metal heat exchanger tube 5-1 in all-glass vacuum thermal-collecting tube 7 through vexed solarization thermal-arrest, the water heating in the pipe, again with heat collection water tank 2 in the water heat-shift.This mode is through test of many times, and directly heating has reduced about 0.1% to running water though collecting efficiency is than all-glass vacuum thermal-collecting tube 7, has solved the problem that the bombing of closing-sunning type solar energy thermal-collecting tube is metalled run out; Simultaneously, because sealing of metal heat exchanger tube 5-1 bottom welding is antifreeze conical pipe 10, when metal heat exchanger tube 5-1 internal memory water freezing expands; Can will freeze upwards pushes in the metal heat exchanger tube 5-1, because metal heat exchanger tube 5-1 can bear big pressure, can not produce distortion and rise and split; If the freezing time is longer; Freezing will be pushed in the heat collection water tank 2, guarantee the vacuum in the all-glass vacuum thermal-collecting tube, thereby guarantee the efficiency of heating surface.
The specific embodiment 2
Like Fig. 4～shown in Figure 7; The present invention includes all-glass vacuum thermal-collecting tube 7; Be that to insert length in the middle of the all-glass vacuum thermal-collecting tube 7 of 47mm be that 100mm～1300mm, diameter are the metal heat exchanger tube 5-1 of 15mm～25mm at interior warp, and fixing with jump ring 6, and the antifreeze conical pipe 10 in order to seal is welded in said metal heat exchanger tube 5-1 bottom; Weld length is the heat exchange bellows 5-2 (length of corresponding shortening metal heat exchanger tube 5-1 that 100mm～1600mm, engineering diameter equate with metal heat exchanger tube (5-1) in metal heat exchanger tube 5-1 upper end; Guarantee that heat exchanger tube length is that 1400mm～1700mm), the fast connected nut 4 of suit outside heat exchange bellows 5-2 is processed into the flat mouthful rib 11 of bellows with heat exchange bellows 5-2 top; It is up only to block fast connected nut 4 with this; Can not be descending, the heat collection water tank tube connector 3 that in fast connected nut 4, is threaded and is connected with heat collection water tank 2, and between heat collection water tank tube connector 3 and the flat mouthful rib 11 of bellows, the O type is installed and is gathered polytetrafluoroethylsealed sealed circle 12; During use; Being threaded with heat collection water tank 2 through heat collection water tank tube connector 3 with metal heat exchanger tube 5-1 of the present invention and with its heat exchange bellows 5-2 that is welded as a whole (has a screw thread if heat collection water tank 2 is undressed; Can heat collection water tank tube connector 3 be welded on the heat collection water tank 2, connect through fast connected nut 4), and with silica gel sealing ring 8 heat collection water tank tube connector 3 is managed external seals and fix; Put all-glass vacuum thermal-collecting tube 7 at metal heat exchanger tube 5-1 and heat exchange bellows 5-2 outside; Tube center distance L is 75mm, in all-glass vacuum thermal-collecting tube 7 peripheries and the outer surface contact site of the heat-insulation layer 1 of heat collection water tank 2 dustproof wind loop 9 is installed again, when system adds water; Water in the heat collection water tank 2 is in heat collection water tank tube connector 3 directly gets into heat exchange bellows 5-2 and metal heat exchanger tube 5-1; Heat exchange bellows 5-2 and metal heat exchanger tube 5-1 in all-glass vacuum thermal-collecting tube 7 through vexed solarization thermal-arrest, the running water heating in the pipe, again with heat collection water tank 2 in the water heat-shift.
Claims (4)
1. pressure-bearing type anti-freeze solar thermal-collecting tube; Comprise all-glass vacuum thermal-collecting tube (7), it is characterized in that, in the middle of all-glass vacuum thermal-collecting tube (7), insert metal heat exchanger tube (5-1); And it is fixing with jump ring (6); Said metal heat exchanger tube (5-1) bottom is welded with antifreeze conical pipe (10), and fast connected nut (4) is welded at the place at metal heat exchanger tube (5-1) top end opening, and heat collection water tank tube connector (3) is threaded in fast connected nut (4).
2. according to the said a kind of pressure-bearing type anti-freeze solar thermal-collecting tube of claim 1; It is characterized in that; At said metal heat exchanger tube (5-1) upper end welding heat exchange bellows (5-2); The fast connected nut of suit (4) outside heat exchange bellows (5-2); The flat mouthful rib (11) of bellows is processed on said heat exchange bellows (5-2) top, the heat collection water tank tube connector (3) that in fast connected nut (4), is threaded, and between heat collection water tank tube connector (3) and flat mouthful of rib (11) of bellows, install and gather polytetrafluoroethylsealed sealed circle (12).
3. according to the said a kind of pressure-bearing type anti-freeze solar thermal-collecting tube of claim 1, it is characterized in that the length of said metal heat exchanger tube (5-1) is 1400mm～1700mm.
4. according to the said a kind of pressure-bearing type anti-freeze solar thermal-collecting tube of claim 2, it is characterized in that the length of said metal heat exchanger tube (5-1) is 100mm～1300mm, the length of said heat exchange bellows (5-2) is 100mm～1600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110297051.1A CN102393091B (en) | 2011-09-28 | 2011-09-28 | Load-bearing anti-freezing solar thermal collector tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110297051.1A CN102393091B (en) | 2011-09-28 | 2011-09-28 | Load-bearing anti-freezing solar thermal collector tube |
Publications (2)
| Publication Number | Publication Date |
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| CN102393091A true CN102393091A (en) | 2012-03-28 |
| CN102393091B CN102393091B (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110297051.1A Expired - Fee Related CN102393091B (en) | 2011-09-28 | 2011-09-28 | Load-bearing anti-freezing solar thermal collector tube |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456995A (en) * | 2014-12-08 | 2015-03-25 | 佩奇姆能源科技南通有限公司 | Solar heat accumulation pipe and machining method thereof |
| CN107246476A (en) * | 2017-07-24 | 2017-10-13 | 邵长存 | A kind of encapsulating method of tubular type recuperator heat exchanger tube |
| CN108180642A (en) * | 2017-12-19 | 2018-06-19 | 海宁市华锋太阳能集热管有限公司 | A kind of two-sided heat absorbing type solar energy heat collection pipe |
| CN108180649A (en) * | 2017-12-26 | 2018-06-19 | 海宁海光信息科技有限公司 | The solar energy vacuum tube and its manufacturing method of a kind of high efficiency heat absorption |
| CN109282512A (en) * | 2018-10-10 | 2019-01-29 | 祁金凤 | A kind of bellows of the thermal-collecting tube suitable for solar water heater |
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- 2011-09-28 CN CN201110297051.1A patent/CN102393091B/en not_active Expired - Fee Related
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456995A (en) * | 2014-12-08 | 2015-03-25 | 佩奇姆能源科技南通有限公司 | Solar heat accumulation pipe and machining method thereof |
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| CN107246476A (en) * | 2017-07-24 | 2017-10-13 | 邵长存 | A kind of encapsulating method of tubular type recuperator heat exchanger tube |
| CN108180642A (en) * | 2017-12-19 | 2018-06-19 | 海宁市华锋太阳能集热管有限公司 | A kind of two-sided heat absorbing type solar energy heat collection pipe |
| CN108180649A (en) * | 2017-12-26 | 2018-06-19 | 海宁海光信息科技有限公司 | The solar energy vacuum tube and its manufacturing method of a kind of high efficiency heat absorption |
| CN109282512A (en) * | 2018-10-10 | 2019-01-29 | 祁金凤 | A kind of bellows of the thermal-collecting tube suitable for solar water heater |
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| Publication number | Publication date |
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| CN102393091B (en) | 2013-03-06 |
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Address after: The economic and Technological Development Zone, Liaoning province Shenyang City eleven street 110005 No. 3-34 Patentee after: SHENYANG WANLIYUAN ENERGY CONSERVATION ENGINEERING Co.,Ltd. Address before: 110005 No. 206 South Street, Heping District, Liaoning, Shenyang, Nanjing Patentee before: SHENYANG WANLIYUAN ENERGY SAVING ENGINEERING Co.,Ltd. |
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Granted publication date: 20130306 Termination date: 20210928 |