CN201803495U - Freezing-resistant flat plate solar collector - Google Patents
Freezing-resistant flat plate solar collector Download PDFInfo
- Publication number
- CN201803495U CN201803495U CN2010201843172U CN201020184317U CN201803495U CN 201803495 U CN201803495 U CN 201803495U CN 2010201843172 U CN2010201843172 U CN 2010201843172U CN 201020184317 U CN201020184317 U CN 201020184317U CN 201803495 U CN201803495 U CN 201803495U
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- CN
- China
- Prior art keywords
- thermal
- collecting tube
- heat collecting
- collecting pipe
- flat plate
- 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.)
- Expired - Fee Related
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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
Abstract
The utility model relates to a freezing-resistant flat plate solar collector, which belongs to the technical field of flat plate solar collectors. The freezing-resistant flat plate solar collector comprises a thermal insulation layer and a heat collecting plate arranged in the thermal insulation layer; the heat collecting plate comprises heat absorbing sheets, an upper heat collecting pipe, a lower heat collecting pipe and a plurality of abreast arranged heat absorbing pipes with two ends connected with the upper heat collecting pipe and the lower heat collecting pipe respectively, wherein the inner diameter of each heat absorbing pipe is not greater than that of the upper heat collecting pipe and the lower heat collecting pipe which are connected with the heat absorbing pipe; the heat absorbing pipes are mutually connected with the heat absorbing sheets, each of the upper heat collecting pipe and the lower heat collecting pipe has one end larger than the other end, the diameters of the middle parts of the upper heat collecting pipe and the lower heat collecting pipe gradually vary, and openings connected with a water tank are formed at the large ends of the upper heat collecting pipe and the lower heat collecting pipe; and the openings at the large ends of the upper heat collecting pipe and the lower heat collecting pipe are oppositely formed. The freezing-resistant flat plate solar collector has a simple and reasonable structure, can effectively overcome the phenomenon that the heat absorbing pipes or the upper heat collecting pipe and the lower heat collecting pipe are frozen because of being stored with water at the low temperature, is more thorough in circulation and can be suitable for especially big projects.
Description
Technical field
The utility model relates to a kind of flat type solar heat collector technical field, particularly freeze-proof type solar flat plate heat collector.
Background technology
So far the key issue that solar water heater faced that is used for winter be the water of thermal-arrest plate at no sunlight and environment temperature freezing and expansion under the situation below 0 ℃, with endothermic tube on the thermal-arrest plate and thermal-collecting tube bursting by freezing up and down.For overcoming above problem, generally adopt following three kinds of methods at present: 1, anti-icing fluid double-loop method: promptly in the thermal-arrest plate, be placed with uncongealable anti-icing fluid below 0 ℃, after anti-icing fluid is heated in the thermal-arrest plate, the water in the water tank heated by heat exchanger.This method cost is higher and collecting efficiency is low.2, exhaust method: promptly when the water in the thermal-arrest plate reaches below 0 ℃ with the water emptying in the thermal-arrest plate, thereby the problem of avoiding the thermal-arrest plate to freeze, this method must many automatically controlled parts, cost is high and unreliable.3, elastic method: the thermal-arrest plate adopts elastomeric material to make, thereby avoids freezing heat collector, and this method cost high life is short, can't promote the use of.
The utility model content
The utility model purpose be to design a kind of production cost low, need not to adopt automatically controlled freeze-proof type solar flat plate heat collector.
The utility model comprises heat-insulation layer and the thermal-arrest plate that is provided with in heat-insulation layer; Described thermal-arrest plate comprises heat absorbing sheet, goes up thermal-collecting tube, the endothermic tube that is arranged side by side that is connected respectively with last thermal-collecting tube and following thermal-collecting tube respectively of thermal-collecting tube, a plurality of two ends down, and the internal diameter of each endothermic tube is not more than the last thermal-collecting tube that is attached thereto and the internal diameter of following thermal-collecting tube; Described endothermic tube and heat absorbing sheet interconnect, and a described end of going up thermal-collecting tube and following thermal-collecting tube is greater than the other end, and the centre is provided with the diameter of gradual change, and the big end of last thermal-collecting tube and following thermal-collecting tube is provided with the opening that joins with water tank; The described thermal-collecting tube of going up oppositely is provided with the big end opening direction of following thermal-collecting tube.
The utility model has utilized and has freezed principle in order, and the last thermal-collecting tube in this heat collector is connected with the circulation pipe of attemperater respectively with the bigger end of following thermal-collecting tube caliber.Solar water heating system is full of water in the thermal-arrest plate in the heat collector in working order the time.When running environment below 0 ℃ the time, the water circulation stops, water in each pipeline begins to freeze simultaneously, owing to the interior caliber minimum of each endothermic tube and with heat absorbing sheet, its heat radiation is the fastest, so at first freeze, water after freezing enters in thermal-collecting tube and the following thermal-collecting tube, again since one of last thermal-collecting tube and following thermal-collecting tube little one greatly, when freezing by on the caliber smallest end of thermal-collecting tube and following thermal-collecting tube freeze at first, water after freezing enters and is attached thereto in bigger last thermal-collecting tube of next caliber and the following thermal-collecting tube, follow the principle of freezing in order, water in the thermal-collecting tube freezes successively, and the water in the thermal-arrest plate is discharged the water that has more after freezing and clamp-oned water tank, thereby guarantees heat collector to freeze and not bad.When 0 ℃ of environment, should carry out the insulation that is connected two thermal-collecting tubes of heat collector and water tank in advance, and guarantee that these two thermal-collecting tubes freeze at last.
The beneficial effects of the utility model are: simple and reasonable for structure, need not to adopt automatically controlled, convenient produce, install, can effectively overcome under the cryogenic conditions endothermic tube or go up thermal-collecting tube, thermal-collecting tube is because of the phenomenon of water bursting by freezing in managing, the service life that can improve solar water heater down.And it is more thorough to circulate, applicable to king-sized engineering.
For the ease of producing, last thermal-collecting tube and following thermal-collecting tube can be respectively joined successively by the metal straight pipe of two different-diameters form at least.Also can adopt conical pipe respectively, or adopt two above conical metal pipes composition that joins successively.
The small end of thermal-collecting tube and following thermal-collecting tube can be cecum on the utility model, and each endothermic tube is connected to the middle part of thermal-collecting tube and following thermal-collecting tube.
The small end of last thermal-collecting tube and following thermal-collecting tube also can be directly be connected with close endothermic tube.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is a kind of structural representation that two groups of heat collectors connect.
Fig. 4 is second kind of structural representation that two groups of heat collectors connect.
The specific embodiment
As shown in Figure 1, 2, the utility model is made up of housing 1, backboard 2, backboard warming plate 3, upper and lower both sides insulation bar 6, front glass cover plate 9, sealing strip 7 and built-in thermal-arrest plate.
In the heat-insulation layer of forming by backboard warming plate 3, upper and lower both sides insulation bar 6, the thermal-arrest plate is set.
The thermal-arrest plate comprises heat absorbing sheet 10, goes up thermal-collecting tube 8, the endothermic tube that is arranged side by side 4 that is connected respectively with last thermal-collecting tube 8 and following thermal-collecting tube 5 respectively of thermal-collecting tube 5, a plurality of two ends down, and the outside of each endothermic tube 4 interconnects with heat absorbing sheet 10 respectively.The internal diameter of each endothermic tube 4 is not more than the internal diameter of the small end of thermal-collecting tube 8 and following thermal-collecting tube 5.
One end of last thermal-collecting tube 8 and following thermal-collecting tube 5 is greater than the other end, and the big end of last thermal-collecting tube 8 and following thermal-collecting tube 5 is provided with the opening that joins with water tank, and small end is a cecum, shown in Fig. 3,4.
As shown in Figure 1, last thermal-collecting tube 8 and following thermal-collecting tube 5 are joined successively by the metal straight pipe of six roots of sensation different-diameter respectively and form, and last thermal-collecting tube 8 oppositely is provided with following thermal-collecting tube 5 big end opening directions.Direct and the close endothermic tube 4 of the small end of last thermal-collecting tube 8 and following thermal-collecting tube 5 is connected.
As shown in Figure 3, two groups of heat collectors oppositely connect, and every group last thermal-collecting tube 8 and following thermal-collecting tube 5 big end opening directions oppositely are provided with, the following tube connector 12 that the big end of two following thermal-collecting tubes 5 interconnects and setting and water tank join.
As shown in Figure 4, two groups of heat collectors oppositely connect, and every group last thermal-collecting tube 8 and following thermal-collecting tube 5 big end opening directions oppositely are provided with, the last tube connector 13 that the big end of thermal-collecting tubes 8 interconnects and setting and water tank join on two.
Claims (6)
1. freeze-proof type solar flat plate heat collector comprises heat-insulation layer and the thermal-arrest plate that is provided with in heat-insulation layer; Described thermal-arrest plate comprises heat absorbing sheet, goes up thermal-collecting tube, the endothermic tube that is arranged side by side that is connected respectively with last thermal-collecting tube and following thermal-collecting tube respectively of thermal-collecting tube, a plurality of two ends down, and the internal diameter of each endothermic tube is not more than the last thermal-collecting tube that is attached thereto and the internal diameter of following thermal-collecting tube; Described endothermic tube and heat absorbing sheet interconnect, and a described end of going up thermal-collecting tube and following thermal-collecting tube is greater than the other end, and the centre is provided with the diameter of gradual change, and the big end of last thermal-collecting tube and following thermal-collecting tube is provided with the opening that joins with water tank; It is characterized in that: the described thermal-collecting tube of going up oppositely is provided with the big end opening direction of following thermal-collecting tube.
2. according to the described freeze-proof type solar flat plate heat collector of claim 1, it is characterized in that: described thermal-collecting tube and the following thermal-collecting tube gone up joined successively by the metal straight pipe of two different-diameters respectively form at least.
3. according to the described freeze-proof type solar flat plate heat collector of claim 1, it is characterized in that: the described thermal-collecting tube of going up is respectively conical pipe with following thermal-collecting tube.
4. according to the described freeze-proof type solar flat plate heat collector of claim 1, it is characterized in that: described upward thermal-collecting tube and following thermal-collecting tube are joined successively by two above conical metal pipes respectively and form.
5. according to claim 1 or 2 or 3 or 4 described freeze-proof type solar flat plate heat collectors, it is characterized in that: the described small end of going up thermal-collecting tube and following thermal-collecting tube is a cecum.
6. according to claim 1 or 2 or 3 or 4 described freeze-proof type solar flat plate heat collectors, it is characterized in that: the small end of described upward thermal-collecting tube and following thermal-collecting tube is connected with close endothermic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201843172U CN201803495U (en) | 2010-04-27 | 2010-04-27 | Freezing-resistant flat plate solar collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201843172U CN201803495U (en) | 2010-04-27 | 2010-04-27 | Freezing-resistant flat plate solar collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201803495U true CN201803495U (en) | 2011-04-20 |
Family
ID=43872993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201843172U Expired - Fee Related CN201803495U (en) | 2010-04-27 | 2010-04-27 | Freezing-resistant flat plate solar collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201803495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825354A (en) * | 2010-04-27 | 2010-09-08 | 徐泽山 | Freeze-proof type solar flat plate heat collector |
-
2010
- 2010-04-27 CN CN2010201843172U patent/CN201803495U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825354A (en) * | 2010-04-27 | 2010-09-08 | 徐泽山 | Freeze-proof type solar flat plate heat collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20140427 |