CN102901240A - Solar water heater - Google Patents
Solar water heater Download PDFInfo
- Publication number
- CN102901240A CN102901240A CN2012104543667A CN201210454366A CN102901240A CN 102901240 A CN102901240 A CN 102901240A CN 2012104543667 A CN2012104543667 A CN 2012104543667A CN 201210454366 A CN201210454366 A CN 201210454366A CN 102901240 A CN102901240 A CN 102901240A
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- Prior art keywords
- heat
- water heater
- tube
- solar water
- medium
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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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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a solar water heater. The water heater is characterized in that a square copper tube which is welded on the back of a metal heat absorbing plate and bends in an S shape serves as a heat absorbing body; an ascending tube and a return tube are respectively connected at the two ends of the tube; and the return tube is arranged below and the ascending tube is arranged above. The water heater has the following advantages that the contact area of the square copper tube and the heat absorbing plate is larger, thus reducing the heat loss of the heat collector part of the solar water heater and improving the heat reaction speed and frost resistance of the whole system.
Description
Technical field
The present invention relates to solar energy heat utilization field, refer in particular to and a kind ofly weld square copper pipe as the flat plate solar water heater of absorber at the metal absorber plate back side.
Background technology
Solar water heater is that a kind of solar energy that utilizes is as the helioplant of energy sources for heating water or heat transfer medium.The most representative with vacuum tube type solar energy water heater and plate solar water heater in the existing solar water heater product.The vacuum tube collector heat sink is vacuum tube, and heat loss is little.Compare the advantage such as that the plate type solar water heater has is simple in structure, the sunlight footprint is large, seal request is low, it is antifreeze not need, working medium is cheap, response is fast with the vacuum tube type solar energy water heater.But also there are the shortcomings such as heat loss is large, collecting efficiency is low.How further to improve the collecting efficiency of solar water heater, be the target that the scientific research personnel pursues always.
The plate type solar water heater mainly is comprised of transparent cover plate, absorber plate, copper pipe, insulation shell four parts.During work, the absorber plate that scribbles coating for selective absorption is converted into heat energy with solar radiation, and heat is passed to the medium that flows in the copper pipe by heat conduction.Existing flat-plate solar collector uses the acetone that is mixed with part water or ethylene glycol as heat-conducting medium, because dielectric viscosity is higher, it is not smooth to cause flowing, and heat exchange efficiency is lower.
For addressing this problem, can adopt the lower heat-conducting medium of boiling point, make medium in the inner heat absorption vaporization of copper pipe, become and hold runny air-flow, bring heat into water tank.Simultaneously since the latent heat of vaporization of medium much larger than sensible heat, the ability of transfer of heat is higher.
But when adopting the lower heat-conducting medium of boiling point, because traditional flat water heater circular copper pipe and absorber plate contact area are less, so that the heat of some area can't be pulled away on the absorber plate.This problem can solve by the heat absorbing part of optimal design water heater heat collector.
Summary of the invention
The purpose that the present invention proposes is further to improve the thermal efficiency of solar water heater, reduces the heat loss of water heater.
For achieving the above object, the technical solution used in the present invention is: solar water heater is comprised of insulation shell, absorber plate, square copper pipe, transparent cover plate, ascending tube, return duct, heat storage water tank, it is characterized in that: the square copper pipe that the absorber plate back side is welded with serpentine bend consists of heat absorbing part, the two ends of pipeline are connected to respectively ascending tube and return duct, return duct is positioned at the below, and ascending tube is positioned at the top.Copper pipe inside, side is filled with the medium of boiling point about 40 degrees centigrade.Heating inner container is equipped with in heat storage water tank inside, and heating inner container is connected with ascending tube and return duct.The medium spout of heating inner container inside is higher than the medium back flow mouth.Absorber plate simultaneously is coated with selective absorption on the sunny side and is coated with, and is wrapped in the shell of insulation shell and transparent cover plate formation.
The present invention has compared three advantages with traditional flat-plate solar collector: the one, use low-boiling heat-conducting medium, and make heat-conducting mode become the latent heat circulating heat conduction by the sensible heat circulating heat conduction, the phase transition process of medium makes circulation rapider, and the heat transfer rate is faster; The 2nd, the boiling point of medium is lower, makes heat collector have cold-starting and freezing tolerance, and makes heat collector when operation temperature lower, has reduced heat leakage; The 3rd, employing side's copper pipe is as heat absorbing conduit, and larger with the absorber plate contact area, heat exchange is rapider.
Description of drawings
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the schematic appearance of this water heater.
Fig. 2 is this water heater heat absorbing part schematic rear view.
Fig. 3 is the A-A profile.
The position of marking is respectively among the figure: 1, solar thermal collector; 2, heat storage water tank; 3, insulation shell; 4, absorber plate; 5, square copper pipe; 6, transparent cover plate; 7, ascending tube; 8, return duct; 9, heating inner container; 10, medium spout; 11, medium back flow mouth.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are explained.
Absorber 4 on the sunny side one side is coated with coating for selective absorption, absorbs sunlight and is converted into heat energy, and the medium of the side's of heating copper pipe 5 inside enters heating inner container 9 through ascending tube 7 by medium spout 10 after the medium heat absorption vaporization, and heat release liquefaction.Medium after the liquefaction is got back to absorber 4 through medium back flow mouth 11 by return duct 8.The water heat absorption of heat storage water tank 2 inside heats up.
Claims (3)
1. solar water heater, this heat collector is comprised of heat storage water tank (2), insulation shell (3), absorber plate (4), square copper pipe (5), transparent water tank (6), ascending tube (7), return duct (8), it is characterized in that: heat absorbing part is made of an absorber plate (4) and the square copper pipe (5) that is welded on its serpentine bend behind, the two ends of pipeline are connected to respectively ascending tube (7) and return duct (8), return duct (8) is positioned at the below, and ascending tube (7) is positioned at the top.
2. a kind of solar water heater according to claim 1, it is characterized in that: square copper pipe inside is filled with the heat-conducting medium of boiling point about 40 degrees centigrade.
3. a kind of solar water heater according to claim 1, it is characterized in that: heating inner container (9) is equipped with in heat storage water tank (2) inside, heating inner container (9) is connected with ascending tube (7) and return duct (8), and the inner medium spout (10) of heating inner container (9) is higher than medium back flow mouth (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104543667A CN102901240A (en) | 2012-11-14 | 2012-11-14 | Solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104543667A CN102901240A (en) | 2012-11-14 | 2012-11-14 | Solar water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102901240A true CN102901240A (en) | 2013-01-30 |
Family
ID=47573618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104543667A Pending CN102901240A (en) | 2012-11-14 | 2012-11-14 | Solar water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102901240A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968568A (en) * | 2014-05-19 | 2014-08-06 | 浙江华尔绝热科技有限公司 | Solar water heater |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094153A (en) * | 1993-02-24 | 1994-10-26 | 中央开发株式会社 | The heat sink that is used for solar water heater |
| CN2291623Y (en) * | 1996-11-07 | 1998-09-16 | 中国人民解放军第七三二一工厂 | Aluminium heat absorber of solar heat collector having antifreezing feature |
| CN2408405Y (en) * | 2000-01-08 | 2000-11-29 | 马光平 | Anti-freezing solar heat collection plate core for water heater |
| US20070084460A1 (en) * | 2005-05-31 | 2007-04-19 | Vaughn Beckman | Solar collector |
| CN202274665U (en) * | 2010-05-05 | 2012-06-13 | 法国圣戈班玻璃厂 | Solar thermal collector |
| CN102620439A (en) * | 2012-04-05 | 2012-08-01 | 镇江新梦溪能源科技有限公司 | Coil pipe-shaped solar air heat collector |
| CN202419972U (en) * | 2012-01-17 | 2012-09-05 | 镇江七政新能源有限公司 | Square-pipe-type solar heat collector |
| CN102679575A (en) * | 2012-04-27 | 2012-09-19 | 镇江新梦溪能源科技有限公司 | Flat-plate solar water heater with snakelike flow passage |
-
2012
- 2012-11-14 CN CN2012104543667A patent/CN102901240A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094153A (en) * | 1993-02-24 | 1994-10-26 | 中央开发株式会社 | The heat sink that is used for solar water heater |
| CN2291623Y (en) * | 1996-11-07 | 1998-09-16 | 中国人民解放军第七三二一工厂 | Aluminium heat absorber of solar heat collector having antifreezing feature |
| CN2408405Y (en) * | 2000-01-08 | 2000-11-29 | 马光平 | Anti-freezing solar heat collection plate core for water heater |
| US20070084460A1 (en) * | 2005-05-31 | 2007-04-19 | Vaughn Beckman | Solar collector |
| CN202274665U (en) * | 2010-05-05 | 2012-06-13 | 法国圣戈班玻璃厂 | Solar thermal collector |
| CN202419972U (en) * | 2012-01-17 | 2012-09-05 | 镇江七政新能源有限公司 | Square-pipe-type solar heat collector |
| CN102620439A (en) * | 2012-04-05 | 2012-08-01 | 镇江新梦溪能源科技有限公司 | Coil pipe-shaped solar air heat collector |
| CN102679575A (en) * | 2012-04-27 | 2012-09-19 | 镇江新梦溪能源科技有限公司 | Flat-plate solar water heater with snakelike flow passage |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968568A (en) * | 2014-05-19 | 2014-08-06 | 浙江华尔绝热科技有限公司 | Solar water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |