CN104864630B - A kind of multi-temperature gradient of use solar energy heating utilizes system - Google Patents

A kind of multi-temperature gradient of use solar energy heating utilizes system Download PDF

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CN104864630B
CN104864630B CN201510289635.2A CN201510289635A CN104864630B CN 104864630 B CN104864630 B CN 104864630B CN 201510289635 A CN201510289635 A CN 201510289635A CN 104864630 B CN104864630 B CN 104864630B
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water
temperature
heat
capillary
reservoir
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CN104864630A (en
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陈九法
饶义本
田权
李亚楠
安玉磊
齐东昇
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Southeast University
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Southeast University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B29/00Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/006Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the sorption type system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B15/00Sorption machines, plant, or systems, operating continuously, e.g. absorption type
    • F25B15/02Sorption machines, plant, or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/06Sorption machines, plant, or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B27/00Machines, plant, or systems, using particular sources of energy
    • F25B27/002Machines, plant, or systems, using particular sources of energy using solar energy
    • F25B27/007Machines, plant, or systems, using particular sources of energy using solar energy in sorption type systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems

Abstract

The invention discloses a kind of using the storage reservoir with three different temperatures water, by the distribution of each water tank different temperatures water of optimizing regulation, so that the system that gradient utilizes and meets cold and heat supply demand.System can provide the domestic hot-water of two kinds of different temperatures, and realize the capillary radiation end cooling under the conditions of Various Seasonal or heat supply and anti-freezing requirement, it is ensured that its comfortableness, high efficiency, security.System uses solar thermal utilization and thermoelectric integral jointly-supplying technology.Device is furnished with novel solar collector --- the photovoltaic/photo-thermal heat collector for integrating that photovoltaic generation and solar energy low-temperature thermal are utilized(PVT).The device includes solar energy high temperature heat collector end, solar energy PVT medium-temperature collectorses end, lithium bromide absorbing type refrigeration Low Temperature Storage water end (W.E.), indoor capillary cold and heat supply spoke side, winter anti-freezing exhausting pipeline protection end and biomass auxiliary thermal source and domestic hot-water produces end.

Description

A kind of multi-temperature gradient of use solar energy heating utilizes system
Technical field
The present invention relates to solar energy and biomass low-carbon comprehensive utilization of energy technical field, and in particular to be a kind of using low The carbon energy produces different temperature waters and the device efficiently utilized.
Background technology
Solar energy is a kind of clean energy resource, and the dirt that burning conventional energy resource is brought can not only be reduced by developing solar energy Dye, can also alleviate energy shortage.PVT(Photovoltaic/photo-thermal)Heat collector utilizes lamination or bonding technique by solar cell or group Together with part is organically combined with solar thermal collector, when solar cell power generation, because incident solar energy is converted into the ratio of electric energy Example about 15%, remaining most of energy is converted into heat, and these heats are recycled by water heat exchange.Both light is reduced The temperature of plate is lied prostrate, generating efficiency is improved, has also reclaimed solar radiation heat, improved efficiency of energy utilization.
Capillary radiation heating cooling technology is to be invented by Germany scientist according to bionics principle 1970s, Have the advantages that good comfortableness, flexible arrangement, noiseless, in the absence of bacteria breed source, without blowing feeling, and with conduct heat, it is hot Efficiency high, space-consuming are smaller, hot wet independent control, effectively improve indoor air quality, using advantages such as low-grade energies. Common general 55 DEG C -45 DEG C of floor heating supply and return water temperature;General 35 DEG C -30 DEG C of capillary network supply and return water temperature, than common floor heating Energy-conservation more than 30%, is saved significant.The advantage of low-grade energy is especially available with, to provide possibility using solar energy.
Lithium Bromide-water Absorption is that the binary solution for utilizing " lithium bromide --- water " to constitute is working medium pair, completes system SAPMAC method.Wherein absorbent is lithium-bromide solution, and refrigerant is water, and within the specific limits, heat source temperature is higher, unit refrigeration effect Rate is higher.Thermal source needed for process of refrigerastion can be steam, and used heat, waste vapour, and geothermal water can also be used.
In the prior art, it is largely that a separate payment is used on above technology, is not bound with and is used together, therefore also The high efficiency for not playing the energy is utilized.In the prior art, hot water is produced on solar thermal collector to be used or too The patent that positive energy photovoltaic and photothermal device generation hot water is used is also a lot, and the hot water that system is produced is used for hot water of doing manual labour, Have for doing flooring radiation heating, but most of patent is all only with solar thermal collector, or only with PVT thermal-arrests Device device.The hot water that some solar thermal collectors are produced not only is used for do manual labour hot water but also the thermal source for doing lithium bromide refrigerating, this Sample cannot ensure the requirement of hot water temperature and the stability of system.And the hot water temperature that device is produced is single, it is difficult to meet User's different situations demand.
The present apparatus is additionally contemplates that solar energy is intermittent energy source, and being influenceed by rainy weather round the clock, therefore solar energy is sharp Accumulation of heat is carried out with regenerative apparatus is added in system, and supplementary energy is used as by the use of the biomass clean energy.It is big in prior art The supplementary energy form that part is used is coal-fired or combustion gas, and boiler combustion form is single, and they are also all non-renewable money Source.And pernicious gas component content is extremely low during biological particles burning, the pernicious gas of discharge is few, and in rural area, it is biological Matter resource is especially enriched, and pernicious gas component content is extremely low when biological particles burn, and the pernicious gas of discharge is few, with environmental protection Benefit.And the ash after burning is also used as potash fertilizer and directly used, and saves spending, it is contemplated that sustainable developability and environmental protection Effect, the heat source boiler that this patent is used can biomass burning can also be used natural gas, but using biomass fuel to be main Comburant.
The present apparatus has used liquid working substance as heat-transfer working medium using solar thermal collector or PVT heat collectors.Extreme Under conditions of weather, some liquid working substances, such as water can face the danger freezed, and solar thermal collector may be destroyed when serious Or the fluid working substance passage at solar panel back.On in terms of high efficiency and stability in view of winter operation, existing Have in technology, in order to prevent freezing, most way is addition anti-icing fluid in prior art.Although this way solves to finish The problem of jelly, but the cost of product is the increase in, and also whether also need to running check anti-icing fluid enough.
The content of the invention
In view of the shortcomings of the prior art, realized the invention provides one kind using solar energy and the biomass low-carbon energy more warm The device that degree gradient high performance is utilized.Two sets of collector arrangements and three are stored reservoir and combined by the system, system integration Design and control.Solve summer absorption refrigeration thermal source and the problem of domestic hot-water supplies;And solve winter and can carry respectively For the domestic hot-water of different temperatures, to meet user's winter different use demand problems.Winter and combine that PVT devices produce compared with The Effec-tive Function that the hot water of low temperature is adapted to so give full play to the present apparatus as capillary radiation heating source is special Point.Present system also solves and does not utilize anti-icing fluid, by system and device by solar thermal collector and PVT collector systems Water is vented, so that pipeline water frozen problem is solved, so that the present apparatus is safe and reliable to operation in the winter time.
Technical scheme is as follows:A kind of multi-temperature gradient of use solar energy heating utilizes system, including solar energy high temperature collection Hot device end, PVT medium-temperature collectorses end, Low Temperature Storage water end (W.E.), indoor capillary cold and heat supply spoke side;
The solar energy high temperature heat collector end includes high-temperature water tank S1 and the solar energy being connected with the high-temperature water tank S1 Heat collector 1;The PVT medium-temperature collectorses end includes middle reservoir S2 and the PVT heat collectors being connected with the middle reservoir S2 3;The high-temperature water tank S1 is connected with A channel, for providing thermobiosis hot water;The middle reservoir S2 is connected with channel B, is used In the middle temperature domestic hot-water of offer;
The Low Temperature Storage water end (W.E.) includes low temperature water tank S3 and the suction-type lithium bromide system being connected with the low temperature water tank S3 Device for cooling 4;The heat source side of the lithium bromide water absorption refrigerating plant 4 is connected with double-tube heat exchanger 11, described sleeve pipe heat exchanger 11 It is positioned in the high-temperature water tank S1;
The indoor capillary cold and heat supply radiation end device includes capillary water knockout drum 5, capillary water collector 6, interior Capillary 7;The oral siphon of capillary water knockout drum 5 is provided with three-way pipe, and the three-way pipe goes out with the middle reservoir S2 respectively Water pipe and low temperature water tank S3 outlet pipes connection;When the indoor capillary cold and heat supply radiation end device heating, even Lead to the outlet pipe of the oral siphon of capillary water knockout drum 5 and the middle reservoir S2;When the indoor capillary cold and heat supply spoke When penetrating end device cooling, the outlet pipe of the oral siphon of capillary water knockout drum 5 and the low temperature water tank S3 is connected.
Export and be connected with for aiding in the working medium in heating described sleeve pipe heat exchanger 11 biological in described sleeve pipe heat exchanger 11 Matter stove 2, the biomass stove 2 is provided with chimney heat exchanger 8;The chimney heat exchanger 8 is connected with the PVT medium-temperature collectorses end, For aiding in the hot water in the heating middle reservoir S2.
The heat source side of the lithium bromide water absorption refrigerating plant 4 can be directly connected to the biomass stove 2, pass through the biology Matter stove 2 is heated to the working medium in it.
In the solar thermal collector(1)With high-temperature water tank(S1)Between, the PVT heat collectors(3)With middle reservoir (S2)Between be respectively equipped with blow-down pipe(m1-n1)、(m3-n3);The biomass stove(2)Chimney heat exchanger(8)On enter water Pipeline and the middle reservoir(S2)By-pass line is provided between cold water outlet pipe(m2-n2).
The high-temperature water tank S1 installation sites are higher than the middle reservoir S2 positions, the high-temperature water tank S1 and the middle temperature Connected between water tank S2 by pipeline, water temperature in central reservoir S2 is provided with the pipeline and is less than the electromagnetism opened at 30 DEG C Check valve d3.
The present invention has the advantages that compared with prior art:
1st, the present invention is used in combination using PVT heat collectors and solar thermal collector two systems.PVT heat collectors can realize light Electrical effect and photo-thermal effect, install electro-optical package, the back side uses circulating water, on the one hand improves the generating of photoelectricity by front Efficiency, on the other hand have collected photovoltaic panel can not be converted into the part heat of electricity.
2nd, the water tank that the present invention sets different temperatures can meet user for not there is provided the water of different gradient temperatures The demand of synthermal domestic water.
3rd, the present invention is provided with biomass stove as auxiliary heat, when solar radiation is not enough, can open biomass stove progress Auxiliary heat, it is ensured that the normal demand of user.
4th, present invention increase winter anti-freezing exhausting pipeline protection device, is prevented when night in winter, night temperatures were too low, pipeline Remaining water electrode easily freezes, so that bursting by freezing water pipe and freezing PVT thermal-arrests panel and solar thermal collector.
Brief description of the drawings
Fig. 1 utilizes the structure principle chart of system for a kind of multi-temperature gradient of use low-carbon energy of the present invention.
Fig. 2 is summer radiation cooling flow chart.
Fig. 3 is wintertime radiation craft flow figure.
Fig. 4 is that winter device is anti-freezing and winter domestic hot-water produces flow chart.
In figure, 1, solar thermal collector, 2, biomass stove, 3, PVT(Photovoltaic/photo-thermal)Heat collector, 4, suction-type lithium bromide Refrigerating plant, 5, capillary water knockout drum, 6, capillary water collector, 7, indoor capillary, 8, chimney heat exchanger, 9, flue gas blower fan, 10th, chimney, 11, tube heat exchanger, S1, high-temperature water tank, S2, middle reservoir, S3, low temperature water tank, B1, heat collector water-circulating pump, B2, PVT device circulating pump, B3, heat-source Cycles pump, B4, chilled water circulating pump, B5, capillary circulation pump, B6, water replenishment pump, The anti-freezing water temperature probe of T1, solar thermal collector, the anti-freezing water temperature probe of T2, PVT heat collector, T3, radiation cooling heating water return Temp probe, a1, heat collector outlet valve, a2, heat collector electromagnetism atmospheric valve, a3, solar thermal collector air bleeding valve, a4, high-temperature water Case air bleeding valve, b1, heat source valve one, b2, heat source valve two, b3, heat source valve three, b4, heat source valve four, b5, chilled water back-water valve (BWV), b6, Chilled water outlet valve, c1, capillary cold water outlet valve, c2, capillary cold-water return valve, c3, capillary by-passing valve, c4, capillary Pipe water supply on-off valve, c5, capillary hot water back-water valve (BWV), c6, capillary hot water outlet valve, d1, high-temperature-hot-water outlet valve, d2, in Warm water's outlet valve, d3, electromagnetism check valve, d4, water supply valve, e1, hot water valve one, e2, PVT heat collector electromagnetism atmospheric valve, e3, Bypass pipe magnetic valve, e4, hot water valve two, e5, PVT heat collector air bleeding valve, e6, middle reservoir air bleeding valve, e7, hot water effluent's valve.
Embodiment
Below in conjunction with the accompanying drawings, by embodiment, the invention will be further described.
It is a kind of to be main energy sources by the use of solar energy new energy and be used as supplementary energy, three storages with the biomass low-carbon energy The water of reservoir storage has different temperature, and realizes cold, heat and electricity triple supply.The device includes solar energy vacuum tube heat collector End, solar energy PVT medium-temperature collectorses end, lithium bromide absorbing type refrigeration Low Temperature Storage water end (W.E.), indoor capillary cold and heat supply spoke side, Winter anti-freezing exhausting pipeline protection end and biomass auxiliary thermal source and domestic hot-water produce end.By adjusting control, realize Apparatus function under varying environment requirement, is now illustrated by various pieces specific works mode.
Solar thermal collector end includes solar thermal collector 1, and heat collector water-circulating pump B1, high-temperature water tank S1, heat collector goes out Water valve a1.Its connected mode is:High-temperature water tank S1 outlets connection heat collector outlet valve a1, heat collector water-circulating pump B1, pump discharge Water flows back to high-temperature water tank S1 to the inlet absorption solar energy heating of solar thermal collector 1 after heating.
Solar energy PVT(Photovoltaic/photo-thermal)Integrated combined supply apparatus end includes hot water effluent's valve e7, the e1 of hot water valve one, hot water The e4 of valve two, bypass pipe magnetic valve e3, PVT heat collector 3, middle reservoir S2 and PVT heat collectors supply line, PVT heat collector hot waters Outlet is connected in the chimney heat exchanger 8 of biomass stove 2 through the e4 of hot water valve two, and hot water outlet is connected to middle reservoir S2 imports In, middle reservoir S2 outlet is connected with hot water effluent's valve e7, PVT device circulating pump B2, the e1 of hot water valve one;Followed in PVT devices Bypass pipe m2-n2 are housed between ring pump B2 exit and the e1 of hot water valve one.PVT heat collectors 3 utilize lamination or gluing skill Art combines solar panel and solar thermal collector, and front is photovoltaic electroplax, and the back side is circulating water pipeline. Photovoltaic electroplax is crystal silicon solar batteries or thin-film solar cells.The direct current that PVT heat collectors 3 are produced is through inverter, change After a series of device such as depressor, battery, each circulating pump is used in electricity feed system, and unnecessary electricity is available for user's conduct Household electricity.
Lithium bromide absorbing type refrigeration Low Temperature Storage water end (W.E.) includes lithium bromide water absorption refrigerating plant 4, heat-source Cycles pump B3, thermal source The b1 of valve one, the b2 of heat source valve two, the b3 of heat source valve three, the b4 of heat source valve four, double-tube heat exchanger 11, chilled water circulating pump B4, chilled water go out Water valve b6, chilled water back-water valve (BWV) b5, low temperature water tank S3.Its connected mode is:Working medium oil is in lithium bromide refrigerating device(4)Heat is provided Behind source, valve is sequentially passed through(b4), heat-source Cycles pump(B3), valve(b1), in water tank(S1)It is middle through double-tube heat exchanger(11)Change After heat, by biomass burner hearth(2)Auxiliary heat, then flows back to lithium bromide refrigerating device(4)In generator in.Wherein there is heat source valve The branch road of two b2, the b3 of heat source valve three control, the service condition for the thermal source that the opening and closing of valve may be implemented under different working conditions.
Exchanged heat in PVT heat collectors 3 with water after storage in middle reservoir S2;In the heating pipe of solar thermal collector 1 Water stored in high-temperature water tank S1;The cold water that lithium bromide water absorption refrigerating plant 4 is produced is stored in low temperature water tank S3.Low temperature Water tank S3 water temperatures are 10-18 DEG C, and middle reservoir S2 water temperatures are 30-50 DEG C, and high-temperature water tank S1 water temperatures are 50-90 DEG C.
Indoor capillary cold and heat supply radiation end device includes:Capillary cold water outlet valve c1, capillary cold-water return valve C2, capillary by-passing valve c3, capillary water knockout drum 5, capillary water collector 6, indoor capillary 7, capillary water supply on-off valve c4, Capillary circulation pump B5, capillary hot water outlet valve c6, capillary hot water back-water valve (BWV) c5, set on capillary water collector delivery port There is radiation cooling heating water return temp probe T3;Summer connected mode is:Water at low temperature flows out from low temperature water tank S3, cold through capillary Water outlet valve c1, capillary circulation pump B5, capillary water knockout drum 5, are then attached to each indoor capillary 7, are supplied through capillary Water on-off valve c4, capillary water collector 6, capillary chilled water back-water valve (BWV) c2 is flowed back in low temperature water tank S3.Capillary by-passing valve c3 Between water inlet and outlet conduit.Winter connected mode is:Therefrom reservoir S2 flows out hot water, through capillary hot water effluent Valve c6, capillary circulation pump B5, capillary water knockout drum 5, indoor capillary 7, capillary on-off valve c4, capillary water collector 6, hair Tubule hot water backwater valve c5, flows back to middle reservoir S2.Wherein winter when high-temperature water tank S1 and middle reservoir S2 by installing electromagnetism Check valve d3 communicating pipe and water replenishment pump B6, water supply valve d4, realize that high-temperature water tank S1 feeds hot water toward middle reservoir S2.
Biomass auxiliary thermal source end device includes biomass stove 2, chimney heat exchanger 8, flue blower fan 9, chimney 10.Biomass The fuel that stove 2 is used is the fuel that is made of biomass, such as straw from village, straw,Rice huskCorncobCotton seed hullsThe particle being made Comburant, the also clean energy resource such as incendivity methanol, ethanol, methane, natural gas.Working medium oil in double-tube heat exchanger 8 can be using boiling The organic assembling composition oils that point is higher, safe and reliable, easily obtain, such as methyl-silicone oil, polymerization dimethicone, aromatic hydrocarbons Deng.Heating-up temperature is up to 100-200 DEG C in biomass stove 2.
Domestic hot-water, which produces end device, to be included:High-temperature-hot-water outlet valve d1, middle warm water's outlet valve d2, electromagnetism check valve D3, water supply valve d4.Its connected mode is:High-temperature water tank S1 reclaimed waters supply user's high-temperature water through high-temperature-hot-water outlet valve d1;In Warm water is used in warm water's outlet valve d2 supplies user in reservoir S2 warps.Reservoir S2 in high-temperature water tank S1 installation site ratios Put high, electromagnetism check valve d3 connecting pipe is equipped between two water tanks, when heat source temperature is not enough, hot water in high-temperature water tank S1 Reservoir S2 in being fed by connecting pipe.
Winter, anti-freezing exhausting pipeline protection end device included:Blow-down pipe m1-n1 in solar thermal collector device, too The positive anti-freezing water temperature probe T1 of energy heat collector, solar thermal collector air bleeding valve a3, high-temperature water tank air bleeding valve a4;In PVT devices Anti-freezing water temperature probe T2, PVT the heat collector air bleeding valve e5 and middle reservoir air bleeding valve e6 of blow-down pipe m3-n3, PVT heat collectors. Its connected mode is:The anti-freezing water temperature probe T2 of anti-freezing water temperature probe T1, PVT heat collector of solar thermal collector is attached separately to too The hot water exit of positive energy heat collector and PVT devices;Solar thermal collector air bleeding valve a3, PVT heat collector air bleeding valve e5 is mounted in dress On the most significant end blow-down pipe put;High-temperature water tank air bleeding valve a4 is mounted in high-temperature water tank S1 the top;Middle reservoir air bleeding valve e6 dresses In middle reservoir S2 the top;Blow-down pipe m1-n1 are between the entrance point and high-temperature water tank S1 of solar thermal collector;Put Blank pipe m3-n3 are between the entrance point and middle reservoir S2 of PVT heat collectors.Embodiment:Winter night temperatures are too When low, under solar thermal collector 1 not running situation, the anti-freezing water temperature probe T1 of solar thermal collector detects solar energy heating Water temperature is less than or equal to 0 DEG C in device 1(Can setting value as the case may be)When, now device has the danger freezed, and system is beaten automatically Solar thermal collector air bleeding valve a3, high-temperature water tank air bleeding valve a4 are opened, the heat collector electromagnetism emptying in exhausting pipeline m1-n1 is opened Cold water is flowed in high-temperature water tank S1 by Action of Gravity Field in valve a2, solar thermal collector 1.Do not transported when the night of solar energy PVT devices 3 During row, when the water temperature that PVT heat collectors anti-freezing water temperature probe T2 is detected in PVT heat collectors 3 is less than or equal to 0 DEG C, now system Also PVT heat collector air bleeding valves e5, middle reservoir air bleeding valve e6, the e4 of hot water valve two are automatically opened up, and opens exhausting pipeline m3-n3 In PVT heat collector electromagnetism atmospheric valve e2, and close in by-pass line m2-n2 bypass pipe magnetic valve e3, the e1 of hot water valve one, Cold water in hot water effluent's valve e7, PVT heat collector 3 flows to night storage, morning on daytime in middle reservoir S2 by Action of Gravity Field Beginning heat cycles are taken away by pumping.
In the present invention, when continuous rainy weather, or the anti-freezing water temperature probe T1 detection pipeline water of solar thermal collector When temperature is too low(Less than or equal to 10 DEG C, it can be set according to user oneself), heat collector water-circulating pump B1 is not turned on, heat collector is closed and goes out Water valve a1, by high-temperature water tank S1 middle sleeves heat exchanger 11, in the auxiliary hot working medium oil heating high-temperature water tank S1 of biomass stove 2 Water.PVT collecting systems, equipped with bypass pipe m2-n2, when continuous overcast and rainy or microthermal climate, the anti-freezing water temperature of PVT heat collectors is visited When head T2 detections pipeline water temperature is too low(Less than or equal to 10 DEG C, it can be set according to user oneself), close the e1 of hot water valve one and hot water The e4 of valve two, water route is bypassed in flue gas heat-exchange unit 8 by bypass pipe m2-n2 and heated.
The present apparatus is in summer operation, and the heat collector electromagnetism atmospheric valve a2 on the blow-down pipe m1-n1 of solar thermal collector end is closed Close, solar thermal collector air bleeding valve a3, high-temperature water tank air bleeding valve a4 are closed, heat collector outlet valve a1 is opened, heat collector water circulation Pump B1 is opened, and solar thermal collector 1 is heated to high-temperature water tank S1.PVT heat collectors 3 are synchronous simultaneously opens, hot water effluent's valve e7, PVT device circulating pumps B2, the e1 of hot water valve one, the e4 of hot water valve two are opened;PVT heat collector electromagnetism atmospheric valves e2, bypass pipe magnetic valve E3, PVT heat collector air bleeding valve e5 and middle reservoir air bleeding valve e6 are closed.The reclaimed water of PVT heat collectors 3 absorbs the unnecessary heat of photovoltaic panel Afterwards, stored in middle reservoir S2.Direct current is through devices such as inverter, transformer, batteries in PVT heat collectors supply line Afterwards, each pump of feed system provides power, and unnecessary electricity is used for household electricity.
The present invention can provide the domestic hot-water of two kinds of different temperatures, open the high-temperature-hot-water outlet valve d1 of A channel and can provide 50-70 DEG C of thermobiosis hot water, thermobiosis hot water can be used to take a shower;The middle warm water's outlet valve d2 opened in channel B can There is provided 30-50 DEG C of low temperature domestic hot-water, the winter wash vegetables etc. that can be used to wash one's hands needs the occasion of low-temperature heat source.As high-temperature water tank S1 When middle hot water temperature is not enough, biomass stove 2 can be opened and carry out auxiliary heat;When central reservoir S2 water temperatures are not enough, with biomass stove 2 Hot water in reservoir S2 during fume afterheat is heated in chimney heat exchanger 8;If desired the hot water of higher temperature, now also can interval High-temperature-hot-waters of the opening high-temperature water tank S1 high temperatures hot water effluent's valve d1 of property there is provided temperature between 50-80 DEG C.Senior middle school's temperature When water volume in water tank is less than certain setting value, water tank can be automatically replenished.
When summer needing refrigeration, lithium bromide water absorption refrigerating plant provides thermal source by high temperature refrigerant oil, and thermal source, which is obtained, to be had Three models.When the hygrosensor in high-temperature water tank S1 detects water temperature between 70-90 DEG C, hydro-thermal amount is in sleeve heat exchange Exchanged heat in device 11 and give working medium oil, biomass stove 2 do not start, now open the b1 of heat source valve one, heat source valve four b4, the b2 of heat source valve two and The b3 of heat source valve three is closed;When high-temperature water tank S1 water temperatures are in 50-70 DEG C, hydro-thermal amount first heating working medium in double-tube heat exchanger 11 Oil, biomass stove 2 opens auxiliary heat, now opens the b1 of heat source valve one, heat source valve four b4, the b2 of heat source valve two and the b3 of heat source valve three and closes Close;When high-temperature water tank S1 water temperatures are below 50 DEG C, working medium oil exchanges heat without double-tube heat exchanger 11, and directly in biomass stove 2 Middle heating, the now b4 of heat source valve four, the b2 of heat source valve two unlatching, the b1 of heat source valve one and the b3 of heat source valve three are closed.Suction-type lithium bromide The chilled water outlet valve b6 of cold water produced in refrigerating plant 4 in evaporator flow to low temperature water tank S3, after by chilled water circulating pump B4 provides freezing Water circulation hydrodynamics, and chilled water back-water valve (BWV) b5 flows back to evaporator in lithium bromide water absorption refrigerating plant 4.Certain There is provided the oil temperature temperature of thermal source is higher in temperature range, its refrigerating efficiency is higher.Wherein 11 summer of double-tube heat exchanger when not only have There is the function of high-temperature water tank S1 reclaimed waters working medium oil heat exchange into pipeline, and it is oily to high-temperature water tank with the working medium in winter pipeline The function of water heat exchange in S1.
When winter needing to heat with domestic hot-water, now lithium bromide water absorption refrigerating plant does not start, now hot The b4 of source valve four and the b2 of heat source valve two are closed, chilled water outlet valve b6, chilled water back-water valve (BWV) b5, chilled water circulating pump B4 It is closed.When winter continuous rainy weather, high-temperature water tank S1 and during too low low temperature water tank S2 water temperatures(Less than 30 DEG C), Heat collector water-circulating pump B1 is out of service, and heat collector outlet valve a1 is closed, and opens solar thermal collector air bleeding valve a3, high-temperature water tank Water in heat collector electromagnetism atmospheric valve a2 above air bleeding valve a4 and exhausting pipeline m1-n1, device is flowed back to by Action of Gravity Field In high-temperature water tank S1.Now biomass stove 2 is started working, and the b3 of heat source valve three and the b1 of heat source valve one are opened, and heat-source Cycles pump B3 is opened Start shipment row, after working medium oil is heated in biomass stove 2,11 in double-tube heat exchanger in heating high-temperature water tank S1 water.It is same with this When PVT apparatus systems in, the pipeline reclaimed water of PVT heat collectors 3 is by exhausting pipeline, by the PVT collection above exhausting pipeline m3-n3 Hot device electromagnetism atmospheric valve e2 flows into middle reservoir S2 by natural gravity effect, now opens the PVT heat collectors in system and device Air bleeding valve e5, middle reservoir air bleeding valve e6, holding meanss are balanced with ambient pressure.The e1 of the hot water valve one and e4 of hot water valve four is closed, Open the bypass pipe magnetic valve e3 and hot water effluent valve e7 and PVT device circulating pump B2 above by-pass line m2-n2, hot water By by-pass line, only heated in chimney heat exchanger 8.
Lithium bromide water absorption refrigerating plant 4 produce cold water, be stored in low temperature water tank S3, water temperature 10-18 DEG C it Between.During summer cooling, capillary hot water outlet valve c6, capillary hot water back-water valve (BWV) c5 are constantly in closed mode.Summer cold water There is provided by low temperature water tank S3, open capillary cold water outlet valve c1, capillary cold-water return valve c2, capillary water supply on-off valve C4, capillary circulation pump B5, cold water flows into capillary radiation end.Supplied if the cold water after being exchanged heat through capillary cooling is radiated Cold heating water return temp probe T3 detections temperature is less than 18 DEG C, is bypassed to through capillary by-passing valve c3 in water knockout drum 5, continues to supply Capillary is used, so as to more save.Wherein capillary by-passing valve c3 is electric control valve, and the amplitude size of unlatching can be adjusted Section, so as to control to flow into the flow of bypass pipe.Interior is equipped with dew point transducer, when dew point transducer senses that cold emission face is tied soon During dew, the water inlet end capillary cold water outlet valve c1 of capillary is closed, stops cold water and enters capillary, make radiative surface temperature liter Gao Hou, is then turned on capillary cold water outlet valve c1 and is circulated, so as to prevent condensation.Interior can also be furnished with dehumidifier simultaneously, When dew point transducer, which is sensed, soon to condense, the dehumidifying that dehumidifier carries out part can be opened.
Reservoir S2 hot water provides capillary radiation end thermal source, at radiation tail end, capillary cold water water outlet in winter Valve c1, capillary cold-water return valve c2 are closed.Open capillary hot water outlet valve c6, capillary hot water back-water valve (BWV) C5, capillary water supply on-off valve c4, open capillary circulation pump B5.Hot water leads to after water knockout drum 5, is heated by capillary radiation After flow back to water collector 6, when radiation cooling heating water return temp probe T3 detection hot water temperatures are more than or equal to 30 DEG C, now pass through hair Tubule by-passing valve c3 is bypassed back in water knockout drum 5, continues radiant heating, so as to more save.
In the present invention, in indoor capillary radiant cooling and heating, capillary ceiling is installed, and ground is installed, also can metope Install.In PVT devices, the direct current sent is through inverter, transformer, and battery etc. can provide power supply for the pump of system, many Remaining electricity is for users to use.In the present invention, solar thermal collector side can realize the sun using heat pipe, composite parabolic heat collector The thermal-arrest of energy.In the present invention, low temperature water tank, middle reservoir, high-temperature water tank all with heat insulation function, and has liquid level gauge, temperature At meter, pressure gauge, and corresponding moisturizing.
Heretofore described specific implementation case is only the preferable case study on implementation of the present invention, not for limiting this hair Bright practical range.The equivalent changes and modifications that i.e. all contents according to scope of the present invention patent are made, all should be used as this hair Bright technology category.

Claims (5)

1. a kind of multi-temperature gradient of use solar energy heating utilizes system, it is characterised in that:Including solar energy high temperature heat collector End, PVT medium-temperature collectorses end, Low Temperature Storage water end (W.E.) and indoor capillary cold and heat supply radiation end device;
The solar energy high temperature heat collector end includes high-temperature water tank(S1)And with the high-temperature water tank(S1)The solar energy of connection Heat collector(1);The PVT medium-temperature collectorses end includes middle reservoir(S2)And with the middle reservoir(S2)The PVT of connection Heat collector(3);The high-temperature water tank(S1)It is connected with A channel, for providing thermobiosis hot water;The middle reservoir(S2)With Channel B is connected, for providing middle temperature domestic hot-water;
The Low Temperature Storage water end (W.E.) includes low temperature water tank(S3)And with the low temperature water tank(S3)The suction-type lithium bromide system of connection Device for cooling(4);The lithium bromide water absorption refrigerating plant(4)Heat source side be connected with double-tube heat exchanger(11), described sleeve pipe changes Hot device(11)It is positioned over the high-temperature water tank(S1)It is interior;
The indoor capillary cold and heat supply radiation end device includes capillary water knockout drum(5), capillary water collector(6), it is indoor Capillary(7);The capillary water knockout drum(5)Oral siphon be provided with three-way pipe, the three-way pipe respectively with the middle reservoir (S2)Outlet pipe and the low temperature water tank(S3)Outlet pipe is connected;When the indoor capillary cold and heat supply radiation end device is supplied When warm, the capillary water knockout drum is connected(5)Oral siphon and the middle reservoir(S2)Outlet pipe;When the indoor capillary When cold and heat supply radiates end device cooling, the capillary water knockout drum is connected(5)Oral siphon and the low temperature water tank(S3)Go out Water pipe.
2. the multi-temperature gradient of use solar energy heating according to claim 1 utilizes system, it is characterised in that:Described Double-tube heat exchanger(11)Outlet is connected with for aiding in heating described sleeve pipe heat exchanger(11)The biomass stove of interior working medium(2), The biomass stove(2)Provided with chimney heat exchanger(8);The chimney heat exchanger(8)It is connected with the PVT medium-temperature collectorses end, For aiding in the heating middle reservoir(S2)In hot water.
3. the multi-temperature gradient of use solar energy heating according to claim 2 utilizes system, it is characterised in that:The bromine Change lithium-absorbing formula refrigerating plant(4)Heat source side can be directly connected to the biomass stove(2), pass through the biomass stove(2)It is right Working medium in it is heated.
4. the multi-temperature gradient of use solar energy heating according to claim 3 utilizes system, it is characterised in that:Described Solar thermal collector(1)With high-temperature water tank(S1)Between, the PVT heat collectors(3)With middle reservoir(S2)Between be respectively equipped with Blow-down pipe;The biomass stove(2)Chimney heat exchanger(8)On water inlet pipe and the middle reservoir(S2)Cold water outlet pipe Between be provided with by-pass line(m2-n2).
5. the multi-temperature gradient of use solar energy heating according to claim 1 utilizes system, it is characterised in that:The height Reservoir(S1)Installation site is than the middle reservoir(S2)Position is high, the high-temperature water tank(S1)With the middle reservoir(S2) Between connected by pipeline, central reservoir is provided with the pipeline(S2)It is unidirectional that middle water temperature is less than the electromagnetism opened at 30 DEG C Valve(d3).
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