CN103542562A - Anti-freezing method of flat plate solar energy water heater - Google Patents
Anti-freezing method of flat plate solar energy water heater Download PDFInfo
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- CN103542562A CN103542562A CN201310519219.8A CN201310519219A CN103542562A CN 103542562 A CN103542562 A CN 103542562A CN 201310519219 A CN201310519219 A CN 201310519219A CN 103542562 A CN103542562 A CN 103542562A
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- flat plate
- water heater
- solar energy
- pipe
- freezing
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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 invention relates to an anti-freezing method of a flat plate solar energy water heater and belongs to the technical field of solar energy. According to the technical solution, flexible extension pipes are arranged between an upper collecting pipe and an upper circulating pipe which are connected with each other and between a lower collecting pipe and a lower circulating pipe which are connected with each other in the upper circulating pipe and the lower circulating pipe of the upper collecting pipe and the lower collecting pipe which are arranged in a connecting water tank and a heat collector. When volume expansion of the water which is arranged between the upper collecting pipe and the lower collecting pipe of the flat plate heat collector and an exhaust pipe and the circulating pipes is caused by low temperature freezing, the flexible extension pipes are squeezed to contract, the amount of compression of the gas is greatly larger than that of expansion of the water when the water freezes, and accordingly the heat collector cannot crack due to the too large pressure. According to the anti-freezing method of the flat plate solar energy water heater, the problems of the energy loss and the heat loss which are additionally caused and the high cost in the process of solving anti-freezing of the traditional flat plate solar energy water heater can be effectively solved, the damage caused by freezing of the flat plate solar energy water heater can be effectively prevented, the heat obtaining efficiency of the solar energy water heater is ensured, and the secondary maintenance is avoided.
Description
Technical field
The present invention relates to a kind of means to prevent freezing of flat plate solar water heater, belong to technical field of solar.
Background technology
Flat plate solar water heater is because of easy for installation, being convenient to the application with architecture-integral combines and is developed rapidly, progressively replace traditional vacuum pipe solar water heater, but flat plate solar water heater is due to design and structural reason, can exist winter flat plate collector and circulation pipe partly because of low temperature, to cause the hidden danger of the freezing equipment of water freezing, the antifreezing measures of conventionally taking for this phenomenon at present mainly contain following several:
1 installs a circulating pump additional on the circulation line of water tank and flat plate collector, temperature in flat plate collector lower than set temperature time, circulating pump forced circulation, is filled to the hot water in water tank in flat plate collector, improve the temperature in heat collector, with this, reach antifreeze object.
Its shortcoming:
During a preventing freeze in winter, the hot water in water tank being filled to flat plate collector can cause heat waste to increase;
B installs circulating pump additional has increased power consumption, and water heater production cost is significantly improved, and is not easy to apply.
In 2 water tanks, adopt in Double-layer clamp shell type or water tank and install the methods such as coil pipe additional, form indirect heat exchange with flat plate collector, in flat plate collector, fill anti-icing fluid, because of the freezing point of the anti-icing fluid minimum ambient air temperature lower than winter, flat plate collector and circulation pipe there will not be icing phenomenon, with this, reach antifreeze object.
Its shortcoming:
A indirect heat exchange inefficiency, can not make full use of solar energy;
B anti-icing fluid is volatile, need to often supplement later maintenance difficulty;
C installs the methods such as coil pipe additional because adopting in water tank in Double-layer clamp shell type or water tank, causes water heater production cost significantly to improve, and is not easy to apply.
Summary of the invention
For above-mentioned existing problems, the object of the present invention is to provide a kind of means to prevent freezing of flat plate solar water heater, to achieve these goals, its technical solution is:
A kind of means to prevent freezing of flat plate solar water heater, in upper header in connecting water tank and heat collector and the upper circular tube and lower circulation pipe of lower collector pipe, employing is to arranging respectively flexible telescopic tube in the middle of the lower collector pipe of the upper header connecting and upper circular tube, connection and lower circulation pipe, the two ends of flexible telescopic tube are closed, and the diameter of flexible telescopic tube is 1:3 with the diameter ratio of upper header, lower collector pipe.
Described flexible telescopic tube is a kind of in silicone tube or rubber tube.
Owing to having adopted above technical scheme, upper when flat plate collector, water between lower collector pipe and comb and circulation pipe, when the low icing generation volumetric expansion of temperature, due on flat plate collector, in lower collector pipe and circulation pipe, be provided with flexible telescopic tube, in flexible telescopic tube, be full of airtight gas, under the pressure of water freezing volumetric expansion, flexible telescopic tube is extruded contraction, the swell increment when decrement of gas is far longer than water freezing, therefore can not cause the comb of heat collector and upper, the pressure of lower collector pipe and circulation pipe is excessive and ftracture, method of the present invention can effectively solve classic flat-plate solar water heater in solving antifreeze process, the energy loss additionally causing and heat loss and high cost problem, can effectively prevent the damage of plate type solar water heater because freezing and causing, guaranteed the thermal efficiency that obtains of solar water heater, avoided secondary maintenance problem, and with low cost, be convenient to large scale application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See accompanying drawing 1.
A kind of means to prevent freezing of flat plate solar water heater, the circulation pipe that comprises water tank 8, the flat-plate solar collector consisting of upper header 5, lower collector pipe 4 and comb 7 and be connected water tank 8 and heat collector in flat plate solar water heater main part, is provided with exhaust apparatus 9 and intake-outlet 10 on water tank 8.Upper header 5 in heat collector, lower collector pipe 4 are connected with upper circular tube 1, lower circulation pipe 6 by connector 3 respectively, employing arranges respectively flexible telescopic tube 2 to the upper header 5 connecting with in the middle of upper circular tube 1, the lower collector pipe 4 being connected and lower circulation pipe 6, flexible telescopic tube 2 two ends are closed, the diameter of flexible telescopic tube 2 is 1:3 with the diameter ratio of upper header 5, lower collector pipe 4, the swell increment of the decrement that this ratio both can guarantee gas in flexible telescopic tube during much larger than water freezing, can guarantee again the normal circulation in water route.Flexible telescopic tube 2 can adopt the macromolecular materials such as silicone tube or rubber tube to make, and flexible telescopic tube 2 has splendid resilience and the little feature of permanent deformation, can repeatedly shrink and natural resilience.
Solar water heater is in routine use, in water tank and circulation pipe and flat plate collector, be all flooded with water, at ambient air temperature during lower than 0 ℃, the generation volumetric expansion of can freezing of water in the circulation pipe of the collector of heat collector and comb and connection, now, the flexible telescopic tube of closed at both ends can be shunk under the extruding of ice, swell increment while being far longer than water freezing due to the decrement of gas in flexible telescopic tube, so the volumetric expansion space producing during water freezing is absorbed by flexible telescopic tube, the phenomenon that there will not be the collector of heat collector and the circulation pipe of comb and connection to ftracture because pressure is excessive, when the normal irradiation of sunlight is on flat-plate solar collector, the energy that heat collector absorbs can be about to ice thaw certainly, the resilience of flexible telescopic tube nature, and water heater returns to again normal operating conditions, can thoroughly solve a preventing freeze in winter difficult problem for plate type solar water heater.
Claims (2)
1. the means to prevent freezing of a flat plate solar water heater, it is characterized in that: in the upper header (5) in connecting water tank (8) and heat collector and the upper circular tube (1) and lower circulation pipe (6) of lower collector pipe (4), employing arranges respectively flexible telescopic tube (2) to the upper header (5) connecting with in the middle of upper circular tube (1), the lower collector pipe (4) being connected and lower circulation pipe (6), the two ends of flexible telescopic tube (2) are closed, and the diameter of the diameter of flexible telescopic tube (2) and upper header (5), lower collector pipe (4) is than being 1:3.
2. the means to prevent freezing of a kind of flat plate solar water heater as claimed in claim 1, is characterized in that: a kind of in silicone tube or rubber tube of described flexible telescopic tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519219.8A CN103542562A (en) | 2013-10-29 | 2013-10-29 | Anti-freezing method of flat plate solar energy water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519219.8A CN103542562A (en) | 2013-10-29 | 2013-10-29 | Anti-freezing method of flat plate solar energy water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103542562A true CN103542562A (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310519219.8A Pending CN103542562A (en) | 2013-10-29 | 2013-10-29 | Anti-freezing method of flat plate solar energy water heater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454991A (en) * | 2019-07-22 | 2019-11-15 | 中国建筑股份有限公司 | A kind of vacuum type heat collector and heat collecting method |
| CN112066577A (en) * | 2020-09-11 | 2020-12-11 | 孟子越 | Solar flat plate type anti-freezing heat collector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931661U (en) * | 1982-08-18 | 1984-02-27 | 昭和アルミニウム株式会社 | Water pipe freeze damage prevention device |
| US5074282A (en) * | 1990-10-24 | 1991-12-24 | Reed Peter D | Solar water heater |
| JP2003254629A (en) * | 2002-02-28 | 2003-09-10 | Meiji Univ | Freeze fracture prevention type liquid pipe, water pipe system using the same, and water heater system |
| CN201170667Y (en) * | 2008-01-25 | 2008-12-24 | 杨军峰 | Solar water heater with vacuum tube for natural circulation antifreeze verandah type hot pipe |
| CN201697374U (en) * | 2010-05-13 | 2011-01-05 | 铜陵市清华宝能源设备有限责任公司 | Anti-freezing flat plate solar water heater |
-
2013
- 2013-10-29 CN CN201310519219.8A patent/CN103542562A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931661U (en) * | 1982-08-18 | 1984-02-27 | 昭和アルミニウム株式会社 | Water pipe freeze damage prevention device |
| US5074282A (en) * | 1990-10-24 | 1991-12-24 | Reed Peter D | Solar water heater |
| JP2003254629A (en) * | 2002-02-28 | 2003-09-10 | Meiji Univ | Freeze fracture prevention type liquid pipe, water pipe system using the same, and water heater system |
| CN201170667Y (en) * | 2008-01-25 | 2008-12-24 | 杨军峰 | Solar water heater with vacuum tube for natural circulation antifreeze verandah type hot pipe |
| CN201697374U (en) * | 2010-05-13 | 2011-01-05 | 铜陵市清华宝能源设备有限责任公司 | Anti-freezing flat plate solar water heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454991A (en) * | 2019-07-22 | 2019-11-15 | 中国建筑股份有限公司 | A kind of vacuum type heat collector and heat collecting method |
| CN112066577A (en) * | 2020-09-11 | 2020-12-11 | 孟子越 | Solar flat plate type anti-freezing heat collector |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20140129 |