CN201954783U - Vacuum phase transition heat transmission type solar flat heat-collecting system - Google Patents
Vacuum phase transition heat transmission type solar flat heat-collecting system Download PDFInfo
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- CN201954783U CN201954783U CN2010206365482U CN201020636548U CN201954783U CN 201954783 U CN201954783 U CN 201954783U CN 2010206365482 U CN2010206365482 U CN 2010206365482U CN 201020636548 U CN201020636548 U CN 201020636548U CN 201954783 U CN201954783 U CN 201954783U
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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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Abstract
The utility model discloses a vacuum phase transition heat transmission type solar flat heat-collecting system, including a flat heat collector frame body, a gas-liquid separator, a heat accumulator, a vacuum evaporator and a condenser, wherein the vacuum evaporator is arranged inside the flat heat collector frame body and passes through the flat heat collector frame body forming two coupling ends, one of which communicates with the gas-liquid separator and another of which communicates with a liquid outlet of the gas-liquid separator via an evaporator liquid supply pipe; the condenser is arranged inside the heat accumulator and passes through the heat accumulator forming two coupling ends, one of which communicates with a gas outlet of the gas-liquid separator via a steam rising pipe and another of which communicates with the gas-liquid separator via a liquor condensate return pipe. The vacuum phase transition heat transmission type solar flat heat-collecting system can be normally used under the temperature of below 0 DEG C and realize long distance heat exchange, is easy for popularization and application, can be widely used in solar heat supply systems, and especially suitable to solar building integrated heat supply systems.
Description
Technical field
The utility model relates to field of solar energy utilization, specifically, relates to a kind of phase transition of vacuum heat transfer type plate solar collecting system.
Background technology
Solar energy is acknowledged as a kind of eco-friendly power source of sustainable development, and along with the continuous development of science and technology, people utilize solar energy progressively to develop into aggressive development and use by passive, half active.How effectively utilizing solar energy to remedy the deficiency of the limited energy such as coal, oil, natural gas, is the heat subject of contemporary science circle.Up to now, the plate solar collector that people adopted mainly contains two types.First kind is conventional flat plate collector, and the commercialization production of this heat collector mainly is used as heat-collecting part in solar water heating system.It is characterized in that, mainly the tube and plate collector of forming by absorber plate and upper and lower collector and flat box type heat collector of forming by two metallic plate butt welding that are pressed with groove or the like.Although the absorber plate structure of heat collector is varied, all be to utilize solar energy directly to add hot water basically by heat absorbing element, this method exists the water in the heat absorbing element to freeze easily in the winter time and to problems such as heat absorbing element corrosion.Therefore, this heat collector can not use below 0 ℃, and Technological Economy is relatively poor.Second kind is the heat pipe type solar flat plate collector, it is characterized in that, utilize some gravity assisted heat pipes to make absorber plate, working medium in the heat pipe obtains heat of vaporization from absorber plate, emit at storage heater by condenser then that heat adds hot water and self is condensed, return heat collector under the gravity effect, again from absorber plate acquisition amount, and selected working medium has antifreeze function.Yet, because the heat pipe radical is difficult to form the long-range connection of split too much, should not install at building wall, this kind heat collector cost of manufacture is too high in addition, the thermal efficiency is low and the manufacturing process complexity, is difficult to apply.
The utility model content
Technical problem to be solved in the utility model provides a kind of phase transition of vacuum heat transfer type plate solar collecting system, this system can not use below 0 ℃ at conventional heat collector, or heat pipe type solar flat plate collector cost height, can not partial installation and be difficult for problem such as popularization, a kind of innovative device has been proposed, the plate solar collecting system that is heat collector and storage heater partial installation, utilizes the working medium phase transition of vacuum to conduct heat, this system effectiveness height, cost is low, still can normally use below 0 ℃.The heat collector of this system not only can be installed in the roof of building, and can be installed in its metope.
The technical scheme in the invention for solving the above technical problem is: phase transition of vacuum heat transfer type plate solar collecting system, comprise flat plate collector framework, gas-liquid separator, storage heater, cold boiler, condenser, cold boiler places flat plate collector framework inside and runs through the flat plate collector framework and forms two links; Condenser places storage heater inside and runs through storage heater and forms two links; Described cold boiler one end and gas-liquid separator are connected, the gas-liquid separator gas vent is logical by a termination of vapor uptake and condenser, the liquid/gas separator liquid outlet is connected by the other end of evaporimeter feed pipe and cold boiler, and the other end of condenser is connected by condensate liquid return duct and gas-liquid separator.
Particularly, described cold boiler is to be connected with heat absorbing element on serpentine coil and the serpentine coil.Condenser also can be the coil pipe of other arbitrary forms.Cold boiler is installed in the flat plate collector framework, is connected with heat absorbing element on the coiled pipe, and the heat absorbing element area equates that with the light-receiving area of heat collector working medium absorbs the heat from heat absorbing element in coiled pipe, evaporates then heat is taken away.
The heat exchange area of described cold boiler is 0.30～0.80 with the ratio of heat absorbing element area.
Described condenser is to be snakelike, spirality or Long Circle coil pipe, and storage heater is provided with cold water inlet and hot water outlet pipe.Condenser can be the coil pipe of other arbitrary forms also, is installed in the storage heater, and the material in the heat heating storage heater is emitted in working medium condensation in condenser.
The heat exchange area of described condenser is 0.30～1.0 with the ratio of heat absorbing element area.
Described gas-liquid separator bottom is connected with drain valve, and the condensate liquid return duct of condenser links to each other with the side of gas-liquid separator bottom.
Described cold boiler, gas-liquid separator, vapor uptake, condenser, condensate liquid return duct, being linked in sequence of evaporimeter feed pipe constitute the working medium closed circuit, and the working medium filling weight in the working medium closed circuit is 5～50% of a cold boiler volume.
Vacuum in the described cold boiler is 4～98kPa.
A kind of working medium that is exclusively used in above-mentioned phase transition of vacuum heat transfer type plate solar collecting system, described working medium is a kind of or more than one formations in water, ammonia, ether, furans, acetone, butanone, chloroform, methyl alcohol, ethanol, normal propyl alcohol, isopropyl alcohol, pentane, isopentane, hexane, the cyclohexane, and its boiling point is 30 ℃～90 ℃.Above-mentioned working medium is the multicomponent composite work medium, is a kind of liquid phase substance or several liquid phase substance of easily phase transformation, and its boiling point is adjustable in 30 ℃～90 ℃ scopes.
Operation principle of the present utility model is: the heat collecting element that adopts the alternative classic flat-plate heat collector of cold boiler of serpentine coil, its effect is similar to the evaporimeter of air-conditioning or refrigerator, latent heat is taken away in intraductal working medium unidirectional evaporation of flowing and absorb heat under the effect of pressure reduction, be in vapor state when arriving the evaporator outlet end, heat transfer efficiency is higher; And be water in the classic flat-plate thermal-arrest organ pipe, it is a sensible heat through the heat collector absorption, utilizes the density contrast of hot and cold water to carry out Natural Circulation, heat transfer efficiency is lower.But evaporimeter arranges that by the vapor uptake split condenser, condensate liquid return duct and evaporimeter feed pipe in the storage heater form the working medium closed circuit of a sealing, fill heat-transfer working medium in the loop.Have by day under the situation at sunshine, the working medium evaporation of being heated in cold boiler becomes saturated vapor or damp steam, enters condenser in the storage heater through gas-liquid separator by vapor uptake then.In condenser, the water heat release of steam outside condenser pipe is condensed, cools off, and the material in the storage heater is heated.The condensation cooling fluid turns back to the bottom of gas-liquid separator by the condensate liquid return duct under the gravity effect, get back to cold boiler by the evaporimeter feed pipe again, finishes a working cycles.In cyclic process, working medium absorbs sun supply heat absorbing element in cold boiler energy is heated, evaporates, emit gasification latent heat and sensible heat and be condensed, be cooled to subcooled liquid in condenser, this phase transformation circulation is carried out repeatedly, is heated to the material of storage heater temperature required.If the material in the storage heater can flow, then heat-transfer effect is better.Gas-liquid separator in the working medium closed circuit can play the effect of gas-liquid separation, guarantees that circulation can normally move.If what come out by cold boiler is damp steam, then isolated saturated solution is known from experience the bottom that drops to gas-liquid separator; If what come out by condenser is damp steam, then isolates steam and can enter condenser by vapor uptake.If be filled with water in the storage heater and do corresponding insulation, then system can be the split type anti-freezing solar water heater of band hot water storage tank; If the solid heat storage material is housed in the storage heater and does corresponding insulation, then device can become the split type anti-freeze solar air heater of band accumulation of heat.
In sum, the beneficial effects of the utility model are:
(1) the utility model working medium natural convection loop of utilizing a sealing couples together the flat plate collector framework and the storage heater of apart from each other, in the loop, fill low boiling multicomponent composite work medium, by carrying out phase transformation circulation repeatedly, material to be heated in the storage heater (for example water) is heated.Described system architecture is simple, can normally use, realize to be easy to remote heat exchange apply below 0 ℃, can be widely used in being particularly useful for solar building integrated heating system in the solar energy heat distribution system.
(2) the utility model adopts the multicomponent composite work medium, no corrosiveness, and boiling point is adjustable in a big way, even phenomenon such as can not solidify when northern temperature hangs down, still can guarantee that described system normally moves winter, increased the scope of application of described system.
Description of drawings
Fig. 1 is the utility model phase transition of vacuum heat transfer type plate solar collecting system schematic flow sheet.
The corresponding component names of mark among the figure: 1-flat plate collector framework; 2-cold boiler; 3-evaporimeter feed pipe; 4-gas-liquid separator; 5-condensate liquid return duct; 6-vapor uptake; 7-condenser; 8-storage heater; 9-cold water inlet; 10-hot water outlet pipe.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
Referring to shown in Figure 1, the phase transition of vacuum heat transfer type plate solar collecting system of present embodiment comprises flat plate collector framework 1, gas-liquid separator 4, storage heater 8, cold boiler 2, condenser 7, cold boiler 2, condenser 7 places flat plate collector framework 1 respectively, flat plate collector framework 1 is also run through in storage heater 8 inside, storage heater 8 company's of formation link, described cold boiler 2 one ends and gas-liquid separator 4 are connected, gas-liquid separator 4 gas vents are logical with a termination of condenser 7 by vapor uptake 6, liquid/gas separator 4 liquid outlets are connected by the evaporimeter feed pipe 3 and the other end of cold boiler 2, and the other end of condenser 7 is connected by condensate liquid return duct 5 and gas-liquid separator 4.
Wherein, cold boiler 2 is serpentine coils, is installed in the flat plate collector framework 1, is connected with heat absorbing element on the coiled pipe, and the heat absorbing element area equates with the light-receiving area of heat collector.Working medium absorbs the heat from heat absorbing element in coiled pipe, evaporate then heat is taken away.The heat exchange area of described cold boiler 2 is 0.30～0.80 with the ratio of heat absorbing element area.
Condenser 7 is coil pipes of arbitrary form, as snakelike, spirality, Long Circle coil pipe etc., is installed in the storage heater 8, and its heat exchange area is 0.30～1.0 with the ratio of heat absorbing element area.The material in the heat heating storage heater 8 is emitted in working medium condensation in condenser 7.
Gas-liquid separator 4 is closed containers of an arbitrary shape, its bottom is connected with drain valve (or not connecing valve) and is connected with evaporimeter feed pipe 3, its top links to each other with vapor uptake 6, the steam pipeline of cold boiler 2 can link to each other arbitrarily angled side with gas-liquid separator 4 tops, and the condensate liquid return duct 5 of condenser 7 links to each other with the side of gas-liquid separator 4 bottoms.
(with reference to the connected mode of Fig. 1) formation working medium closed circuit that is linked in sequence of above-mentioned cold boiler 2, gas-liquid separator 4, vapor uptake 6, condenser 7, condensate liquid return duct 5, evaporimeter feed pipe 3.Cold boiler 2, connecting tube, condenser 7 usefulness copper or stainless steel are made, and gas-liquid separator 4 usefulness stainless steels are made, adopt welding or be threaded be integral after, suppress leak detection.Unclamp the attaching nut then, cold boiler 2 and condenser 7 are respectively charged in flat plate collector framework 1 and the storage heater 8, connect pipeline again.At last, system is vacuumized and can working medium, working medium can amount is 5%～50% of a cold boiler volume.
Embodiment 2:
A kind of working medium that is exclusively used in embodiment 1 described phase transition of vacuum heat transfer type plate solar collecting system, described working medium is the multicomponent composite work medium.
Described multicomponent composite work medium is one or more of liquid-gas phase transition material.
Described liquid-gas phase transition material is a kind of in water, ammonia, ether, furans, acetone, butanone, chloroform, methyl alcohol, ethanol, normal propyl alcohol, isopropyl alcohol, pentane, isopentane, hexane, the cyclohexane or more than one.
Example 1, water are as working medium, and vacuum is 85.59kPa, and the evaporating temperature that system installs back working medium is 55 ℃.
Example 2, as working medium, vacuum is 63.09kPa with ethanol, the evaporating temperature that system installs back working medium is 55 ℃.
Example 3 uses acetone and methanol mixture as working medium, and the mol ratio of acetone, methyl alcohol is 0.22:0.78, and absolute pressure is 1atm, and the evaporating temperature that system installs back working medium is 55.28 ℃.
Example 4, the mixture of using acetone and chloroform is as working medium, and the mol ratio of acetone chloroform is 0.35:0.65, and vacuum is 32.32kPa,, the evaporating temperature that system installs back working medium is 55 ℃.
The above; it only is preferable case study on implementation of the present invention; be not that the present invention is done any pro forma restriction, any simple modification, the equivalent variations on every foundation technical spirit of the present invention above case study on implementation done all fall within protection scope of the present invention.
As mentioned above, just can realize the utility model preferably.
Claims (8)
1. phase transition of vacuum heat transfer type plate solar collecting system, it is characterized in that, comprise flat plate collector framework (1), gas-liquid separator (4), storage heater (8), cold boiler (2), condenser (7), cold boiler (2) places flat plate collector framework (1) inside and runs through flat plate collector framework (1) and forms two links; Condenser (7) places storage heater (8) inside and runs through storage heater (8) and forms two links; Described cold boiler (2) one ends and gas-liquid separator (4) are connected, gas-liquid separator (4) gas vent is logical with a termination of condenser (7) by vapor uptake (6), liquid/gas separator (4) liquid outlet is connected by the evaporimeter feed pipe (3) and the other end of cold boiler (2), and the other end of condenser (7) is connected by condensate liquid return duct (5) and gas-liquid separator (4).
2. phase transition of vacuum heat transfer type plate solar collecting system according to claim 1 is characterized in that described cold boiler (2) is to be connected with heat absorbing element on serpentine coil and the serpentine coil.
3. phase transition of vacuum heat transfer type plate solar collecting system according to claim 1 and 2 is characterized in that the heat exchange area of described cold boiler (2) is 0.30～0.80 with the ratio of heat absorbing element area.
4. phase transition of vacuum heat transfer type plate solar collecting system according to claim 1 and 2, it is characterized in that, described condenser (7) is to be snakelike, spirality or Long Circle coil pipe, and storage heater (8) is provided with cold water inlet (9) and hot water outlet pipe (10).
5. phase transition of vacuum heat transfer type plate solar collecting system according to claim 1 and 2 is characterized in that the heat exchange area of described condenser (7) is 0.30～1.0 with the ratio of heat absorbing element area.
6. phase transition of vacuum heat transfer type plate solar collecting system according to claim 1 and 2, it is characterized in that, described gas-liquid separator (4) bottom is connected with drain valve, and the condensate liquid return duct (5) of condenser (7) links to each other with the side of gas-liquid separator (4) bottom.
7. phase transition of vacuum heat transfer type plate solar collecting system according to claim 1 and 2, it is characterized in that, described cold boiler (2), gas-liquid separator (4), vapor uptake (6), condenser (7), condensate liquid return duct (5), being linked in sequence of evaporimeter feed pipe (3) constitute the working medium closed circuit, and the working medium filling weight in the working medium closed circuit is 5～50% of a cold boiler volume.
8. phase transition of vacuum heat transfer type plate solar collecting system according to claim 7 is characterized in that, the vacuum in the described cold boiler is 4～98kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010206365482U CN201954783U (en) | 2010-12-01 | 2010-12-01 | Vacuum phase transition heat transmission type solar flat heat-collecting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206365482U CN201954783U (en) | 2010-12-01 | 2010-12-01 | Vacuum phase transition heat transmission type solar flat heat-collecting system |
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| CN201954783U true CN201954783U (en) | 2011-08-31 |
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| CN2010206365482U Expired - Fee Related CN201954783U (en) | 2010-12-01 | 2010-12-01 | Vacuum phase transition heat transmission type solar flat heat-collecting system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012115A (en) * | 2010-12-01 | 2011-04-13 | 四川天乙太阳能科技有限公司 | Vacuum phase-transition heat transfer solar flat-plate heat-collecting system and working medium used for same |
| CN102538243A (en) * | 2012-03-12 | 2012-07-04 | 中南大学 | Flat-plate type solar water heater device |
| CN103075756A (en) * | 2013-01-30 | 2013-05-01 | 吴志勇 | Natural circulation device for heating by using solar thermal |
-
2010
- 2010-12-01 CN CN2010206365482U patent/CN201954783U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012115A (en) * | 2010-12-01 | 2011-04-13 | 四川天乙太阳能科技有限公司 | Vacuum phase-transition heat transfer solar flat-plate heat-collecting system and working medium used for same |
| CN102538243A (en) * | 2012-03-12 | 2012-07-04 | 中南大学 | Flat-plate type solar water heater device |
| CN103075756A (en) * | 2013-01-30 | 2013-05-01 | 吴志勇 | Natural circulation device for heating by using solar thermal |
| CN103075756B (en) * | 2013-01-30 | 2016-01-20 | 吴志勇 | Utilize the natural circulating device that solar energy optical-thermal heats |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20141201 |
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| EXPY | Termination of patent right or utility model |