CN102538239A - Flat-plate solar water heater - Google Patents
Flat-plate solar water heater Download PDFInfo
- Publication number
- CN102538239A CN102538239A CN2012100122090A CN201210012209A CN102538239A CN 102538239 A CN102538239 A CN 102538239A CN 2012100122090 A CN2012100122090 A CN 2012100122090A CN 201210012209 A CN201210012209 A CN 201210012209A CN 102538239 A CN102538239 A CN 102538239A
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- China
- Prior art keywords
- working medium
- pipeline
- way valve
- water heater
- boiler
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- 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.)
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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
Abstract
The invention discloses a flat-plate solar water heater with two working medium circulating loops. Pipes of the flat-plate solar water heater are connected to form two working medium circulating loops, one working medium circulating loop is a working medium heat-adsorption circulation of a solar heat collector and the other working medium circulating loop is a heat release circulation loop from the solar heat collector to a hot water tank; working media of the two circulation loops are driven by one circulating pump, an inlet of the circulating pump is connected with a public opening of one two-position three-way valve, two inlets of the two-position three-way valve are respectively connected with the heat-adsorption circulation loop of the solar water heater and the heat release circulation loop, and switching between the two circulation loops can be realized by the two-position three-way valve. The flat-plate solar water heater disclosed by the invention has the advantages of improving heat adsorption efficiency and increasing hot water yield.
Description
Technical field
The present invention relates to a kind of solar water heater, particularly a kind of flat plate solar water heater with two working medium closed circuits.
Background technology
Add the flat plate solar water heater that working medium circulating pump and closed circuit constitute by flat-plate solar collector and the boiler that has working fluid heat exchanger; Usually the sender property outlet of solar thermal collector is directly connected to the working medium inlet of boiler through pipeline; The sender property outlet of boiler is connected to inlet of circulating pump earlier; Be connected to the working medium inlet of solar thermal collector again by circulating-pump outlet, form a working medium closed circuit.When this working medium closed circuit is higher than the water temperature of boiler in the working medium temperature of solar thermal collector, can the working medium of solar thermal collector be recycled to the water in the heating water tank in the water tank, form the heat release circulation.Yet, when the working medium temperature of solar thermal collector is lower than the boiler water temperature,, will take away the heat in the boiler if working medium continues circulation, produce opposite effect.At this moment, can only stop the circulation of working medium through the power supply that cuts off circulating pump.After circulating pump was out of service, the heat absorption of solar thermal collector can only realize through the free convection of working medium in the heat collector.After the working medium temperature of heat collector surpassed the boiler water temperature, circulating pump just started once more, drove working medium to the heating that circulates of the water of boiler.
Be to improve heat absorption efficiency, changing the working medium of heat collector into forced circulation by the free convection circulation is an improved method.For realizing this purpose, two working medium closed circuits just need be set: working medium heat absorption closed circuit and working medium heat release closed circuit.
Through retrieval, in the invention of existing solar energy work station, do not have the solar water heater of two working medium closed circuits.Especially do not use the separate unit working medium circulating pump, realize the invention that working medium circulates in two closed circuits.
Summary of the invention
The purpose of this invention is to provide a kind of flat plate solar water heater with two working medium closed circuits.Compare with the flat plate solar water heater of traditional wall scroll working medium closed circuit, heat absorption efficiency can increase substantially.
The objective of the invention is to realize through following method:
A kind of flat plate solar water heater is characterized in that: having two working medium closed circuits, absorbs heat as the working medium of solar thermal collector self and circulates in a loop; Another loop is as being circulated by the heat release of solar thermal collector to boiler.
Article two, the working medium closed circuit comprises: an end of pipeline 8 is connected to the sender property outlet of solar thermal collector 9; The other end links to each other with pipeline 3 with pipeline 2; The working medium that is connected to boiler 1 through pipeline 2 enters the mouth, and is connected to first inlet of electronic two position three-way valve 5 simultaneously through pipeline 3; Sender property outlet, the other end that pipeline 4 one ends are connected to boiler 1 is connected to second inlet of electronic two position three-way valve 5; The public outlet of electronic two position three-way valve 5 is directly connected to the inlet of circulating pump 6, and the outlet of circulating pump 6 is connected to the working medium inlet of solar thermal collector 9 through pipeline 7.
Water heater of the present invention has two working medium closed circuits, absorbs heat as the working medium of solar thermal collector self and circulate in a loop; Another loop is as being circulated by the heat release of solar thermal collector to boiler.And the working medium of two closed circuits is only driven by a circulating pump.When the working medium temperature of solar thermal collector was lower than the boiler water temperature, microcomputer controller was only connected article one working medium closed circuit (heat absorption closed circuit), and working medium does not flow through boiler, and only in solar thermal collector, circulates.When the working medium temperature of solar thermal collector is higher than the water temperature of boiler, water heater control computer will be connected second working medium closed circuit (heat release closed circuit), and working medium is returned in the solar thermal collector after will flowing into the boiler heat release by solar thermal collector again.The heat absorption mode of solar thermal collector is changed into the forced circulation mode by original free convection mode, can improve the efficient that heat collector absorbs solar energy, increases hot water output.
Use the present invention to compare with the flat plate solar water heater of traditional wall scroll working medium closed circuit, heat absorption efficiency can increase substantially.
Description of drawings
Fig. 1 is the heat absorption circulation sketch map of a kind of embodiment of the present invention.
Fig. 2 is the heat release circulation sketch map of a kind of embodiment of the present invention.
The specific embodiment
The present invention is by the boiler that working fluid heat exchanger is housed 1, pipeline 2,3,4,7,8, and electronic two position three-way valve 5, circulating pump 6, solar heat-collection plate 9 constitutes.One end of pipeline 8 is connected to the sender property outlet of solar thermal collector 9, and the other end links to each other with pipeline 3 with pipeline 2, and the working medium that is connected to boiler 1 through pipeline 2 enters the mouth, and is connected to first inlet of electronic two position three-way valve 5 simultaneously through pipeline 3.The sender property outlet other end that pipeline 4 one ends are connected to boiler 1 is connected to second inlet of two position three-way valve 5.The public outlet of electronic two position three-way valve 5 is directly connected to the inlet of circulating pump 6, and the outlet of circulating pump 6 is connected to the working medium inlet of solar thermal collector 9 through pipeline 7.
Electronic two position three-way valve 5 also can use the electromagnetism two position three-way valve to replace.
Operation principle of the present invention is following:
In the accompanying drawing 1,2, boiler 1 passes through pipeline tube connector 2,3,4,7,8 with solar thermal collector, and with electronic two position three-way valve 5, circulating pump 6 links together, and constitutes a solar water heater.Pipeline can form two working medium closed circuits through the switching of electronic two position three-way valve 5.
When the working medium temperature of solar thermal collector was lower than the boiler water temperature, the control computer of solar water heater just was arranged on the right position shown in the accompanying drawing 1 with electronic two position three-way valve 5, with electronic two position three-way valve 5
First inlet and its common port are connected, and cut off the passage of pipeline 4 to circulating pump 5 simultaneously.During pump operating cycle, working medium from the sender property outlet of solar thermal collector through piping 8, pipeline 3, first mouth from electronic two position three-way valve 5 is connected to circulating pump 6, returns solar thermal collector through pipeline 7 again, forms article one working medium closed circuit.This closed circuit working medium can not flow to boiler 1 inside, and only in the solar thermal collector inner loop, forms working medium heat absorption closed circuit, makes heat collector under working medium forced circulation state, absorb the heat of the sun.
When the solar energy heating plate temperature is higher than the boiler water temperature; The control computer of solar water heater just switches to the position shown in the accompanying drawing 2 with two position three-way valve 5; Second inlet and the common port of electronic two position three-way valve 5 are connected, cut off the passage of pipeline 3 simultaneously to circulating pump 6.Working medium enters the mouth through piping 8 and the working medium that pipeline 2 gets into boiler 1 from the sender property outlet of solar thermal collector 9, behind the working fluid heat exchanger in the boiler, by the sender property outlet of boiler 1; Through pipeline 4; Electronic two position three-way valve 5, circulating pump 6, pipeline 7 returns solar thermal collector 9.This is a second working medium closed circuit of the present invention.This closed circuit working medium is returned boiler through circulating pump by solar thermal collector after through boiler again, forms the heat release closed circuit of working medium, the heat of solar thermal collector is sent in the boiler heated.
Claims (3)
1. flat plate solar water heater is characterized in that: have two working medium closed circuits, loop is as the working medium heat absorption circulation of solar thermal collector self; Another loop is as being circulated by the heat release of solar thermal collector to boiler.
2. flat plate solar water heater according to claim 1; It is characterized in that two working medium closed circuits comprise: an end of pipeline (8) is connected to the sender property outlet of solar thermal collector (9); The other end links to each other with pipeline (3) with pipeline (2); The working medium that is connected to boiler (1) through pipeline (2) enters the mouth, and is connected to first inlet of electronic two position three-way valve (5) simultaneously through pipeline (3); Sender property outlet, the other end that pipeline (4) one ends are connected to boiler (1) is connected to second inlet of electronic two position three-way valve (5); The public outlet of electronic two position three-way valve (5) is directly connected to the inlet of circulating pump (6), and the outlet of circulating pump (6) is connected to the working medium inlet of solar thermal collector (9) through pipeline (7).
3. flat plate solar water heater according to claim 2 is characterized in that: electronic two position three-way valve (5) uses the electromagnetism two position three-way valve to replace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100122090A CN102538239A (en) | 2012-01-16 | 2012-01-16 | Flat-plate solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100122090A CN102538239A (en) | 2012-01-16 | 2012-01-16 | Flat-plate solar water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102538239A true CN102538239A (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100122090A Pending CN102538239A (en) | 2012-01-16 | 2012-01-16 | Flat-plate solar water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102538239A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980312A (en) * | 2012-12-31 | 2013-03-20 | 广西比迪光电科技工程有限责任公司 | Flat plate solar water heater with circulation of frequency conversion working substance |
| CN103542541A (en) * | 2013-10-24 | 2014-01-29 | 铜陵市清华宝能源设备有限责任公司 | Solar water heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989382A (en) * | 1995-09-20 | 1997-04-04 | Tokyo Denki Kogyo Kk | Hot water generating device |
| JPH09138006A (en) * | 1995-11-10 | 1997-05-27 | Nippon Electric Glass Co Ltd | Solar heat water-heater facility |
| CN1344902A (en) * | 2001-10-17 | 2002-04-17 | 王志向 | Solar heat exchange system with high temperature heat conducting medium |
| JP2003106654A (en) * | 2001-09-27 | 2003-04-09 | Noritz Corp | Water heater using solar heat |
| CN201954786U (en) * | 2010-12-22 | 2011-08-31 | 上海安悦节能技术有限公司 | Phase-change heat-storage type solar heating system |
-
2012
- 2012-01-16 CN CN2012100122090A patent/CN102538239A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989382A (en) * | 1995-09-20 | 1997-04-04 | Tokyo Denki Kogyo Kk | Hot water generating device |
| JPH09138006A (en) * | 1995-11-10 | 1997-05-27 | Nippon Electric Glass Co Ltd | Solar heat water-heater facility |
| JP2003106654A (en) * | 2001-09-27 | 2003-04-09 | Noritz Corp | Water heater using solar heat |
| CN1344902A (en) * | 2001-10-17 | 2002-04-17 | 王志向 | Solar heat exchange system with high temperature heat conducting medium |
| CN201954786U (en) * | 2010-12-22 | 2011-08-31 | 上海安悦节能技术有限公司 | Phase-change heat-storage type solar heating system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980312A (en) * | 2012-12-31 | 2013-03-20 | 广西比迪光电科技工程有限责任公司 | Flat plate solar water heater with circulation of frequency conversion working substance |
| CN103542541A (en) * | 2013-10-24 | 2014-01-29 | 铜陵市清华宝能源设备有限责任公司 | Solar water heater |
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| 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: 20120704 |