CN201016499Y - Solar energy stepping utilization type air-conditioning system - Google Patents

Solar energy stepping utilization type air-conditioning system Download PDF

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Publication number
CN201016499Y
CN201016499Y CNU2007200483746U CN200720048374U CN201016499Y CN 201016499 Y CN201016499 Y CN 201016499Y CN U2007200483746 U CNU2007200483746 U CN U2007200483746U CN 200720048374 U CN200720048374 U CN 200720048374U CN 201016499 Y CN201016499 Y CN 201016499Y
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CN
China
Prior art keywords
water
communicated
solution
absorption refrigerator
air
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CNU2007200483746U
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Chinese (zh)
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陈颖
施永康
刘效洲
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Guangdong Chigo Air Conditioning Co Ltd
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Guangdong Chigo Air Conditioning Co Ltd
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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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems

Abstract

The utility model discloses a solar energy cascade use air-conditioning system comprising a solar collector, an absorption refrigerator, a heat storage water tank passing through a duct to communicate with the solar collector and form a first heat medium water circulation loop, an air cooler passing through the duct to communicate with the absorption refrigerator and from a first cooling medium water circulation loop, a dehumidifier arranged at the air inlet front part of the air cooler; and a regenerator forms a liquid desiccant solution circulation loop with the dehumidifier. The solar collector liquid dehumidifier air-conditioning system further comprises a heating water tank that passes through the duct to communicate with the absorption refrigerator and the heat storage water tank, and form a second heat medium water circulation loop; and a dilute solution heating duct that is arranged in the heating water tank and comprised in the liquid desiccant solution circulation loop. The liquid dehumidifying technology is combined with the solar collecting refrigeration technology, thereby fully improving the refrigeration efficiency of the absorption refrigerator.

Description

Solar energy cascade utilizes the formula air-conditioning system
Technical field
The utility model is about a kind of absorption type air conditioning system, particularly utilizes the formula air-conditioning system about a kind of solar energy cascade with liquid dehumidifying function.
Background technology
Along with improving constantly of living standard, the electric air conditioner product has been come into huge numbers of families, for people have made comfortable working and learning environment.But,, also increasing to the pressure that electric power system is brought along with the surge of electric air conditioner quantity.All must carry out power cuts to limit consumption to some zone annual summer in large-and-medium size cities, to guarantee the normal operation of electrical network.This has brought inconvenience for those regional industrial production and people's life.And the present supply of electric power of China still relies on coal combustion, the generating of wet goods mineral resources to a great extent, so the surge of power consumption must cause the minimizing day by day of mineral resources.In addition, the power generation process of dependence coal combustion, wet goods mineral resources must cause problem of environmental pollution to a certain extent.
Simultaneously, the year solar radiation quantity (inclined-plane) of China various places is between 1300～2500kWh/m2, and a year sunshine time is 2000～3300h.Domestic quite a few regional solar energy resources is abundant, and is very favourable concerning solar energy utilizes.
Therefore, the solar energy that utilizes summer is a desirable scheme to air conditioner refrigerating.Low-grade energy (solar energy) is changed into high-grade energy (refrigeration), to saving conventional energy resource, reduce environmental pollution, it is significant to uplift the people's living standard.
Solar airconditioning generally adopts sorption type refrigerating technology.Sorption type refrigerating technology is to utilize the absorption of absorbent and the technology that evaporation characteristic is freezed, and according to the difference of absorbent, generally is divided into aqua-ammonia absorption-type refrigerating machine and lithium bromide-water absorption type and freezes two kinds.The absorption solar energy air-conditioning system has special significance: at first, this Refrigeration Technique does not adopt freon, can avoid the destruction to ozone layer; Secondly, it adopts the energy of low taste, and bright prospect is being arranged aspect energy-conservation and the environmental protection; In addition, this systematic running cost low (or not having operating cost substantially), movement-less part wearing and tearing, long service life and noise are little.
In addition, the humidity load of air-conditioning is wet in the wet and new wind from the product of indoor occupant mainly, and this part humidity load accounts for 20%～40% in total air conditioner load, be the important component part of whole air conditioner load.At present, the air-treatment mode of Chang Yong air-conditioning form is for adopting the surface cooler cool-down dehumidification.In order to satisfy the requirement of dehumidifying, often to be as cold as very low temperature to air like this.As the air themperature that satisfies the indoor comfort demand is 24 ℃, and dew point is 14 ℃, and for the purpose that realizes dehumidifying, the temperature of chilled water will be hanged down to 7 ℃, and the evaporating temperature of cold machine is low to 2-5 ℃.Being not difficult to find out, need be that heat-obtaining and need be at 14 ℃ of following heat-obtainings to satisfy the dehumidifying requirement satisfying the cooling requirement under 24 ℃ the thermal source in temperature.The low temperature of low-temperature receiver requires at first to set in order to satisfy dehumidifying to require, if just in order to lower the temperature, what evaporating temperature can be high is many.In condensation process dry air also to be as cold as same low temperature in order dehumidifying, also to have needed heat to satisfy the requirement of wind pushing temperature under some situation again, this also causes the waste of energy.So, needing a kind of means that can independent humidity control, dehumidifying and temperature-fall period are separated, thereby the higher low-temperature receiver of serviceability temperature just can arrive ventilation state to air-treatment, the efficient of raising refrigeration machine also can improve indoor comfort.
At present, generally the air conditioner dehumidification method of Cai Yonging is as follows: at first, adopt solution moisture in the absorbed air in dehumidifier such as lithium bromide, lithium chloride, calcium chloride, ethylene glycol or triethylene glycol, the result is that air becomes dry and solution is thinning; Then, in regenerator, solution is heated, make the water evaporates in the solution and thicken; At last, the solution that thickens is reused in the dehumidifier and dehumidifies.
High-temperature heat-gathering absorption type air conditioning system in a kind of solar energy that is disclosed for No. 01128404.8 as Chinese patent application, this system comprises: 1. one can be heated to heat medium water high-temperature heat-gathering device in 150-200 ℃ the solar energy; 2. the heat storage water tank in order to storing from the heat medium water that heat collector comes has the pipeline that heat medium water is circulated between heat storage water tank and heat collector between this heat storage water tank and heat collector; 3. hot water operated absorption refrigerating machine, the thermal source of refrigeration machine is imported and exported with heat storage water tank and is joined through the pipeline circulation; 4. the chilled water with refrigeration machine is imported and exported the storage cold water storage cistern that circulation is joined; 5. donkey boiler, the thermal source of donkey boiler and refrigeration machine are imported and exported through the pipeline circulation and are joined; 6. air-conditioner, this air-conditioner links to each other with heat storage water tank through circulating line, links to each other with the storage cold water storage cistern through another circulating line, links to each other with donkey boiler through another circulating line; 7. a heat exchanger that joins with heat collector circulation is used for from heat collector heat medium water being drawn, and makes the domestic water of itself and heat exchanger water tank carry out heat exchange.But the high-temperature heat-gathering absorption type air conditioning system does not adopt dehydrating unit in this solar energy.
The radiation cooling aircondition of a kind of Driven by Solar Energy of being disclosed for No. 200510040466.5 of Chinese patent application and for example, this device comprises solution dehumidification and regenerating section and evaporative cooling and cold recovery part thereof; In solution dehumidification and regenerating section thereof, coil heat exchanger outlet in the concentrated solution liquid storing barrel of solar thermal collector inlet and tep reel pipe in pipe links to each other, the solar thermal collector outlet is communicated with regenerator, the taphole of regenerator communicates with the concentrated solution liquid storing barrel of tep reel pipe in pipe, the outlet of the concentrated solution liquid storing barrel of tep reel pipe in pipe is communicated with corrosion protection pump through concentrated solution liquid storing barrel output control valve, anticorrosion delivery side of pump links to each other through the inlet of the coil pipe in second sample valve and the oil-to-water heat exchanger, the coil pipe outlet links to each other with dehumidifier, the weak solution outlet of dehumidifier links to each other with weak solution liquid storing barrel inlet, the outlet of weak solution liquid storing barrel bottom links to each other with solution pump, the solution delivery side of pump is provided with weak solution liquid storing barrel delivery valve, and the coil heat exchanger inlet of the outlet of weak solution liquid storing barrel delivery valve in the concentrated solution liquid storing barrel of first sample valve and tep reel pipe in pipe links to each other; In evaporative cooling and cold recovery part thereof, the delivery outlet of dehumidifier connects adiabatic humidiflcation device, air-conditioned room respectively by air～water heat exchanger, air-air heat exchanger, radiant coil in the air-conditioned room is connected with the adiabatic humidiflcation device, and the outlet of air-conditioned room and the outlet of indirect evaporation cooler together connect the import of internally cooled dehumidifier.But, as seen through the above analysis, the dehumidifying weak solution of the radiation cooling aircondition of the Driven by Solar Energy that is disclosed for these No. 200510040466.5 will flow through solar thermal collector and be heated therein, this will cause corrosion to solar thermal collector, reduce the service life of solar thermal collector.
Therefore, provide a kind of absorption type liquid dehumidifying air-conditioning system that can make full use of solar energy to become the problem that industry need solve.
Summary of the invention
The purpose of this utility model provides a kind of solar energy cascade that utilizes solar energy to freeze simultaneously and dehumidify and utilizes formula air-conditioning system, i.e. solar energy absorption type liquid dehumidifying air-conditioning system.
The technical solution of the utility model is: a kind of solar energy absorption type liquid dehumidifying air-conditioning system is provided, comprise solar thermal collector, Absorption Refrigerator, form the hot water storage tank of the first heat medium water closed circuit with solar thermal collector, form the aerial cooler of the first chilled water closed circuit with Absorption Refrigerator, be arranged at aerial cooler the air intake leading portion dehumidifier and form the regenerator of dehumidification solution closed circuit with dehumidifier, wherein, solar energy absorption type liquid dehumidifying air-conditioning system further comprises the heating water tank that is communicated with and forms the second heat medium water closed circuit by pipeline and Absorption Refrigerator and hot water storage tank, be arranged in the heating water tank and be included in weak solution water back in the dehumidification solution closed circuit, form the solution cooler of the second chilled water closed circuit with Absorption Refrigerator, and be arranged in the solution cooler and be included in concentrated solution cooling pipe in the dehumidification solution closed circuit.
So-called Absorption Refrigerator is meant the refrigeration machine that adopts sorption type refrigerating technology, that is, the binary solution that utilizes two kinds of materials to form freezes as working medium.These two kinds of materials have different boiling points under same pressure, wherein high boiling component is called absorbent, and lower boiling component is called cold-producing medium.Absorbent commonly used-cold-producing medium combination has two kinds: a kind of is lithium bromide-water, is applicable to large-scale central air-conditioning usually; Another kind is a water-ammonia, is applicable to minitype air conditioner usually.
Usually, Absorption Refrigerator mainly is made up of generator, condenser, evaporimeter and absorber.With the lithium-bromide absorption-type refrigerating machine is example, and in the refrigerator operation process, when lithium bromide water solution was subjected to the heat medium water heating in generator after, the water in the solution was constantly vaporized; Steam enters condenser, condenses behind the water for cooling that is cooled; Along with the continuous vaporization of water, the solution concentration in the generator constantly raises, and enters absorber; When the water in the condenser enters evaporimeter by choke valve, rapid expansion and vaporizing, and in vaporescence a large amount of heats that absorb chilled water in the evaporimeters, thereby reach the purpose of cooling refrigeration; In this process, the water at low temperature steam enters absorber, and the dense lithium-bromide solution that is absorbed in the device absorbs, and solution concentration progressively reduces, and sends generator back to by solution pump, finishes whole circulation.
So-called solar energy absorption type refrigeration utilizes solar heat collector to provide its generator needed heat medium water for Absorption Refrigerator exactly.The temperature of heat medium water is high more, and then the coefficient of performance of refrigeration machine (also claiming COP) is high more, and the refrigerating efficiency of air-conditioning system is also high more like this.
Wherein, hot water storage tank and solar thermal collector form the first heat medium water closed circuit, can be that hot water storage tank directly is communicated with the formation closed circuit with solar thermal collector by pipeline, also can be to form closed circuit indirectly, be the heat exchange coil that is arranged in the hot water storage tank such as one section in the first heat medium water closed circuit.
Wherein, aerial cooler and Absorption Refrigerator form the first chilled water closed circuit, can be that aerial cooler directly is communicated with the formation closed circuit with Absorption Refrigerator by pipeline, also can be to form closed circuit indirectly, such as setting by cold-storage water tank and heat exchange coil.
Wherein, solution cooler and Absorption Refrigerator form the second chilled water closed circuit, can be that solution cooler directly is communicated with the formation closed circuit with Absorption Refrigerator by pipeline, also can be to form closed circuit indirectly, such as setting by cold-storage water tank and heat exchange coil.
Preferably, hot water storage tank is communicated with solar thermal collector by pipeline and forms the first heat medium water closed circuit, aerial cooler is communicated with Absorption Refrigerator by pipeline and forms the first chilled water closed circuit, and solution cooler is communicated with Absorption Refrigerator by pipeline and forms the second chilled water closed circuit.
Preferably, this system further comprises the air heater that is communicated with and forms the cooling water circulation with Absorption Refrigerator, and air heater is arranged on the air intake leading portion of regenerator.Wherein, the air intake of air heater is communicated with outdoor new wind, and the air outlet slit of air heater is communicated with the air intake of regenerator.The water inlet of air heater is communicated with the coolant outlet of Absorption Refrigerator, and the water out of air heater is communicated with the cooling water inlet of Absorption Refrigerator.
Preferably, further be communicated with a blower fan between the air intake of the air outlet slit of air heater and regenerator.Be communicated with a blower fan between the air intake of the outlet of the dry air of dehumidifier and aerial cooler.
Preferably, the so-called first heat medium water closed circuit is meant that the water out of hot water storage tank is communicated with the water inlet of solar thermal collector by pipeline, and the water out of solar thermal collector is communicated with the water inlet of hot water storage tank by pipeline, thus the heat medium water that forms circulation.
Preferably, the so-called second heat medium water closed circuit is meant, the heat medium water inlet of Absorption Refrigerator is communicated with the high-temperature water outlet of hot water storage tank by pipeline, the heat medium water outlet of Absorption Refrigerator is communicated with the inlet of heating water tank by pipeline, the outlet of heating water tank is communicated with the water at low temperature inlet of hot water storage tank by pipeline, thus the heat medium water that forms circulation.
Preferably, the so-called first chilled water closed circuit is meant, the chilled water outlet of Absorption Refrigerator is communicated with the inlet of water knockout drum, an outlet of water knockout drum is communicated with the water inlet of aerial cooler, the water out of aerial cooler is communicated with an inlet of water collector, the outlet of water collector is communicated with the chilled water inlet of Absorption Refrigerator again, thus the chilled water that forms circulation.
Preferably, the so-called second chilled water closed circuit is meant, the chilled water outlet of Absorption Refrigerator is communicated with the inlet of water knockout drum, another outlet of water knockout drum is communicated with the water inlet of solution cooler, the water out of solution cooler is communicated with another inlet of water collector, the outlet of water collector is communicated with the chilled water inlet of Absorption Refrigerator again, thus the chilled water that forms circulation.
Preferably, so-called cooling water circulation loop is meant that the water inlet of air heater is communicated with the coolant outlet of Absorption Refrigerator, and the water out of air heater is communicated with the cooling water inlet of Absorption Refrigerator, thus the cooling water that forms circulation.
The desiccant cooling process of this solar energy absorption type liquid dehumidifying air-conditioning system is: the humid air inlet of dehumidifier is communicated with indoor damp-heat air, the dehumidification solution of dehumidifier sprays from top to bottom, humid air from down to up with dehumidification solution reverse contact be dried after, flow to the air intake of aerial cooler from the dry air outlet of dehumidifier, in aerial cooler by after the chilled water in the second chilled water loop cooling, treat refrigeration space from the cold dry air outlet flow direction of aerial cooler, the thinning back of dehumidification solution suction imports in the weak solution groove of dehumidifier bottom.
The solution regenerative process of this solar energy absorption type liquid dehumidifying air-conditioning system is: rare dehumidification solution of the heat in the regenerator sprays from top to bottom, outdoor new wind is cooled via air heater after the cooling water heating of water-flow circuit, air intake by regenerator from down to up with the reverse moisture that contacts and take away in the solution of dehumidification solution, enter atmosphere from the air outlet slit of regenerator, import in the concentrated solution groove of regenerator bottom after the dehumidification solution dehydration thickens.
Particularly, the weak solution water back is arranged between the solution inlet of the taphole of dehumidifier and regenerator, and the concentrated solution cooling pipe is arranged between the regenerator taphole enters the mouth with dehumidifier solution.
More specifically, be provided with No. one pump in the first heat medium water closed circuit, with so that water between solar thermal collector, hot water storage tank, circulate.Be provided with No. two pump in the second heat medium water closed circuit, with so that heat medium water between Absorption Refrigerator, heating water tank, hot water storage tank, circulate.Be provided with No. three pump in the first chilled water closed circuit, with so that chilled water between Absorption Refrigerator, water knockout drum, aerial cooler, water collector, circulate.The second chilled water closed circuit is provided with pump No. four, with so that chilled water between Absorption Refrigerator, water knockout drum, solution cooler, water collector, circulate.Be provided with pump No. five between the solution inlet of weak solution water back and regenerator, be transported in the regenerator after heating via heat(ing) coil in order to the solution that suction in the dehumidifier is thinning and regenerate.Be provided with pump No. six between the solution inlet of concentrated solution cooling pipe and dehumidifier, be transported to dehumidifier after cooling off via the concentrated solution cooling pipe in order to the solution that dehydration in the regenerator is thickened and dehumidify.
Selectively, the pipeline between solar thermal collector and the hot water storage tank is provided with auxiliary thermal source, such as electric heater, hot-water branch, boiler plant etc., and auxiliary heat supplying when solar energy is not enough.In addition, can also utilize the using waste heat from tail gas of miscellaneous equipment as auxiliary thermal source.Be provided with the auxiliary cold source branch road that is subjected to valve control between the water out of air heater and the cooling water inlet of Absorption Refrigerator, such as cooling tower, cold water arm etc.
Selectively, the structure of hot water storage tank, cold-storage water tank, solution cooler, heating water tank can be selected following several forms according to concrete service condition: do not establish heat exchange pipeline in the casing, then two kinds of working medium direct mixed heat transfer in casing; Perhaps, be provided with a kind of heat exchange pipeline in the casing, then a kind of working medium mobile and another kind of working medium in pipeline flows outside pipeline, and they are by the duct wall indirect heat exchange; Perhaps, be provided with in the casing in two kinds of heat exchange pipelines and the casing and fill heat transferring medium, then a kind of working medium mobile and another kind of working medium in a pipeline flows in another pipeline, and they are by the heat transferring medium indirect heat exchange.And heat exchange pipeline can be forms such as coil pipe, helix tube, straight tube, heat exchanger fin.
Preferably, do not establish heat exchange pipeline in the hot water storage tank so that the water of the first heat medium water closed circuit and the second heat medium water closed circuit can be in hot water storage tank abundant mixed heat transfer.
Adopting water knockout drum and water collector is pressure and/or temperature equalization when making the first chilled water closed circuit and the second chilled water closed circuit begin and finish.
Selectively, can not establish water knockout drum and water collector, enter the first chilled water closed circuit and the second chilled water closed circuit respectively but be branched into two-way at the pipeline place that the chilled water that leaves Absorption Refrigerator exports a segment distance, after heat exchange is finished, the first chilled water closed circuit and the second chilled water closed circuit are merged into one tunnel chilled water inlet that enters Absorption Refrigerator at the enter the mouth pipeline place of a segment distance of the chilled water that leaves Absorption Refrigerator again, at this moment, the first chilled water closed circuit and the second chilled water closed circuit can share a pump.
Selectively, the reinforcement mass transfer parts in dehumidifier and the regenerator comprise various packing layers, surface cooler, wetted wall tower and spray chamber etc.
Selectively, solar thermal collector comprises various thermal-arrest modes: flat board, vacuum tube, heat pipe etc.
Selectively, auxiliary thermal source can be electrical heating, also can be other low-grade used heat and waste heats.Auxiliary thermal source can with the hot water storage tank independent design, also can be integrated with hot water storage tank.
Selectively, each parts of the present utility model both can be integrated into a device whole or in part and have been used, and also can be to be linked to be a complete system by pipeline and circuit to use.
The utility model also comprises various temperature detect switch (TDS)s, control valve, temperature-sensing valve and the stop valve in the system of being arranged on, can ruly operation under the control of processor and/or control circuit to guarantee it.
The beneficial effects of the utility model are: at first, adopt the second heat medium water closed circuit, make the solar energy of catching both be applied to Absorption Refrigerator is freezed, be applied to again the dehumidification solution thermal regeneration, fully saved electric energy on the one hand, reduce system's humidity load on the other hand, thereby fully improved the coefficient of performance of system; Secondly,, fully improved the recycling efficient of dehumidification solution, and the energy of heating water tank, air heater, solution cooler is all indirectly from solar energy by the setting of heating water tank, air heater, solution cooler; In addition, whole system only needs a spot of electric energy to drive blower fan and solution pump circulation, reduced the distribution of unit, liquid dehumidifying technology and solar energy absorption type refrigeration technical tie-up, can improve the refrigerating efficiency of Absorption Refrigerator, compare with traditional Absorption Refrigerator, can increase substantially the effect on moisture extraction of unit; And the heat energy utilization of whole system is arranged according to " temperature cascade utilization " principle, has improved the utilization ratio of system; At last, weak solution regeneration heating is to adopt the water-bath heating in heating water tank, and than other mode of heatings, the concentration of solution can keep stablizing constant in the operation long period, and can obtain stable solution import and export temperature operating mode.
Below in conjunction with drawings and Examples; further specify the utility model; but the utility model is not limited to these embodiment, any on the utility model essence spirit improvement or substitute, still belong to scope required for protection in the utility model claims.
Description of drawings
Fig. 1 is the schematic diagram of embodiment 1 of the present utility model.
Fig. 2 is the schematic diagram of embodiment 2 of the present utility model.
The specific embodiment
Embodiment 1
Please refer to Fig. 1, solar energy absorption type liquid dehumidifying air-conditioning system of the present utility model comprises the two big major parts that are mutually related.Wherein a part is based on the first heat medium water closed circuit, the second heat medium water closed circuit, the first chilled water closed circuit, second chilled water closed circuit and the cooling water circulation loop that Absorption Refrigerator 5 is provided with.Wherein another part is based on the dehumidification solution closed circuit of dehumidifier 11 and regenerator 16 settings.
The first heat medium water closed circuit is: the water out of hot water storage tank 4 is communicated with by the water inlet of pipeline with solar thermal collector 1 via valve 23 and a pump 20, the water out of solar thermal collector 1 is communicated with by the water inlet of pipeline with hot water storage tank 4 via auxiliary thermal source 3 and valve 26, thereby forms circulation.Wherein, auxiliary thermal source 3 electric heater 3 for being controlled by temperature detect switch (TDS) 2 in the present embodiment.
The second heat medium water closed circuit is: the outlet of the high-temperature water of hot water storage tank 4 enters the mouth with the heat medium water of Absorption Refrigerator 5 by pipeline via temperature-sensing valve 27, No. two pumps 21 and valve 25 and is communicated with, the heat medium water outlet of Absorption Refrigerator 5 is communicated with by the inlet of pipeline with heating water tank 13 via valve 38 and valve 39, the outlet of heating water tank 13 is communicated with the water at low temperature inlet of hot water storage tank 4 by pipeline via valve 40 and valve 24, thereby forms circulation.
The first chilled water closed circuit is: the chilled water outlet of Absorption Refrigerator 5 is communicated with by the inlet of pipeline with water knockout drum 61 via valve 29, one of them outlet of water knockout drum 61 is communicated with by the water inlet of pipeline with aerial cooler 8 via No. three pumps 221 and valve 30, the water out of aerial cooler 8 is communicated with one of them inlet of water collector 62 by pipeline via valve 32, the outlet of water collector 62 is communicated with the chilled water inlet of Absorption Refrigerator 5 by pipeline via valve 28, thereby forms circulation.
The second chilled water closed circuit is: the chilled water outlet of Absorption Refrigerator 5 is communicated with by the inlet of pipeline with water knockout drum 61 via valve 29, another outlet of water knockout drum 61 is communicated with by the water inlet of pipeline with solution cooler 14 via No. four pumps 222 and valve 31, the water out of solution cooler 14 is communicated with another inlet of water collector 62 by pipeline via valve 33, the outlet of water collector 62 is communicated with the chilled water inlet of Absorption Refrigerator 5 by pipeline via valve 28, thereby forms circulation.
Cooling water circulation loop is: the coolant outlet of Absorption Refrigerator 5 is communicated with by the water inlet of pipeline with air heater 18 via valve 35 and valve 37, the water out of air heater 18 is communicated with by the cooling water inlet of pipeline with Absorption Refrigerator 5 via valve 36 and valve 34, thereby forms circulation.
The dehumidification solution closed circuit is: the dense dehumidification solution in the dehumidifier 11 sprays from top to bottom, imports in the weak solution groove of dehumidifier 11 bottoms with the indoor damp-heat 7 reverse thinning backs of suction that contact.Weak solution in the weak solution groove is via the solution inlet of heat(ing) coil 63 in the heating water tank 13 and No. five pump 66 inflow regenerators 16.Rare dehumidification solution of the heat in the regenerator 16 sprays from top to bottom, imports in the concentrated solution groove of regenerator bottom after dehydration thickens with outdoor new wind 19 reverse contacts.The solution inlet that concentrated solution in the concentrated solution groove enters dehumidifier 11 after via the concentrated solution cooling pipe in the solution cooler 14 and No. six pumps 12 is used further to dehumidifying, thereby forms circulation.
Wherein, the air intake of air heater 18 is communicated with outdoor new wind 19, and the air outlet slit of air heater 18 is communicated with via the air intake of blower fan 17 with regenerator 16.Thereby outdoor new wind 19 suitably is drawn into the regeneration that regenerator 16 is used for dehumidification solution by blower fan 17 after the heating at air heater 18, becomes (air draft) 10 of hot humid air at last and discharges from regenerator 16 tops.
Wherein, the outlet of the dry air of dehumidifier 11 is communicated with via the air intake of blower fan 9 with aerial cooler 8, and the cold dry air outlet of aerial cooler 8 is communicated with treating refrigeration space.Thereby, indoor damp-heat air (pending air) 7 is sucked in the dehumidifier 11 by after the dehumidification solution drying, flow to aerial cooler 8 from dehumidifier 11 via blower fan 9, in aerial cooler 8 by after the chilled water in the second chilled water loop cooling, from cold dry air outlet the becoming cold dry air (air-supply) 15 of aerial cooler 8.
Operation principle:
One, heat medium water circulation
Water enters hot water storage tank 4 after being heated by solar thermal collector 1, when the hot water temperature reaches certain value (such as 95 ℃), temperature-sensing valve 27 is opened, hot water provides heat medium water from hot water storage tank 4 to Absorption Refrigerator 5, from the hot water outlet temperature of Absorption Refrigerator 5 about 85～90 ℃, flow to heating water tank 13 through valve 38, valve 39, the temperature of dehumidification solution is heated to about 80 ℃, hot water flows back to hot water storage tank 4 through valve 40, valve 24, be heated into high-temperature-hot-water by solar thermal collector again, and keep the required high-temperature temperature of Absorption Refrigerator 5.
When if solar energy is not enough, hot water storage tank 4 temperature descend, and temperature detect switch (TDS) 2 is opened auxiliary thermal source 3, replenish or the replacement solar-heating.
Two, chilled water circulation
The chilled water (about 10～15 ℃) that Absorption Refrigerator 5 produces enters in the water knockout drum 61 through valve 29, divide the two-way cooling, one the tunnel enters in the solution cooler 14 temperature that reduces dehumidification solution through valve 31, another road enters in the aerial cooler 8 through valve 30, take away the sensible heat of the pending air (as indoor hot humid air) of dehumidifying back temperature rising, obtain temperature and humidity and all meet the requirements of air-supply 15.
Three, cooling water circulation
The water temperature of the cooling water inlet of Absorption Refrigerator 5 is 30～35 ℃, the water temperature of outlet is 40～45 ℃, cooling heat takes air heater 18 to by cooling circulating water, and outdoor air 19 is heated to 35～40 ℃, and the cooling backwater after the heat radiation is got back in the refrigeration machine 5 through valve 36,34.
Four, dehumidification solution circulation
The dehumidification solution circulation is one of key component of this system, and it circulates between dehumidifier 11 and regenerator 16, by absorbing the purpose that airborne moisture reaches dehumidifying.The solution that enters regenerator 16 is the higher weak solution of temperature (about 80 ℃), outdoor new wind 19 after the heating is drawn into the regenerator 16 from air heater 18 by blower fan 17, contact exchanged heat, matter in regenerator 16 with the weak solution of high temperature, take away the moisture in the solution, and the temperature of reduction solution, make the solution in regenerator 16 solution tanks that fall back become concentrated solution again.After No. six pumps 12 are driven into it and are cooled to 20～25 ℃ in the solution cooler 14, send in the dehumidifier 11 and contact with indoor hot humid air 7, absorb wherein redundant moisture, reach the purpose (release latent heat) of dehumidifying, the temperature of air and solution all raises to some extent in this process, so the dry air after the dehumidifying is extracted in the aerial cooler 8 cooling through blower fan 9, discharges sensible heat, become send into after all qualified air-supply of temperature humidity 15 indoor.
Embodiment 2
Please refer to Fig. 2, present embodiment is substantially the same manner as Example 1, and difference is:
The part that is provided with based on Absorption Refrigerator 5 comprises the first heat medium water closed circuit, the second heat medium water closed circuit, main chilled water closed circuit, the first chilled water closed circuit, second chilled water closed circuit and the cooling water circulation loop.
The first heat medium water closed circuit is: the water out of hot water storage tank 4 is communicated with by the water inlet of pipeline with solar thermal collector 1 via valve 23 and a pump 20, the water out of solar thermal collector 1 is communicated with by the water inlet of pipeline with hot water storage tank 4 via auxiliary thermal source 3 and valve 26, thereby forms circulation.Wherein, auxiliary thermal source 3 utilizes device for using waste heat from tail gas.
The second heat medium water closed circuit is: the high-temperature water outlet that is arranged on the heat exchange coil (figure does not show) in the hot water storage tank 4 enters the mouth with the heat medium water of Absorption Refrigerator 5 by pipeline via temperature-sensing valve 27, No. two pumps 21 and valve 25 and is communicated with, the heat medium water outlet of Absorption Refrigerator 5 is communicated with by the inlet of pipeline with heating water tank 13 via valve 38 and valve 39, the outlet of heating water tank 13 is communicated with via valve 40 and the valve 24 water at low temperature inlet by the heat exchange coil in pipeline and the hot water storage tank 4, circulates thereby form.
Main chilled water closed circuit is: the chilled water outlet of Absorption Refrigerator 5 is communicated with by the inlet of pipeline with cold-storage water tank 6 via valve 29, the outlet of cold-storage water tank 6 is communicated with the chilled water inlet of Absorption Refrigerator 5 by pipeline via valve 28, thereby forms circulation.
The first chilled water closed circuit is: the outlet that is arranged at the cooling coil (figure does not show) in the cold-storage water tank 6 via No. three pumps 22 and valve 30 water inlet by pipeline and aerial cooler 8 be communicated with, the water out of aerial cooler 8 is communicated with via the inlet of valve 32 by the cooling coil in pipeline and the cold-storage water tank 6, circulates thereby form.
The second chilled water closed circuit is: the outlet that is arranged at the cooling coil (figure does not show) in the cold-storage water tank 6 is communicated with by the water inlet of pipeline with solution cooler 14 via No. three pumps 22 and valve 31, the water out of solution cooler 14 is communicated with via the inlet of valve 33 by the cooling coil in pipeline and the cold-storage water tank 6, circulates thereby form.
Cooling water circulation loop is: the coolant outlet of Absorption Refrigerator 5 is communicated with by the water inlet of pipeline with air heater 18 via valve 35 and valve 37, the water out of air heater 18 is communicated with by the cooling water inlet of pipeline with Absorption Refrigerator 5 via valve 36 and valve 34, thereby forms circulation.
The dehumidification solution closed circuit is: the dense dehumidification solution in the dehumidifier 11 sprays from top to bottom, imports in the weak solution groove of dehumidifier 11 bottoms with the indoor damp-heat 7 reverse thinning backs of suction that contact.Weak solution in the weak solution groove is via the solution inlet of heat(ing) coil 63 in the heating water tank 13 and No. four pump 66 inflow regenerators 16.Rare dehumidification solution of the heat in the regenerator 16 sprays from top to bottom, imports in the concentrated solution groove of regenerator bottom after dehydration thickens with outdoor new wind 19 reverse contacts.The solution inlet that concentrated solution in the concentrated solution groove enters dehumidifier 11 after via the concentrated solution cooling pipe in the solution cooler 14 and No. five pumps 12 is used further to dehumidifying, thereby forms circulation.
Embodiment 3
Present embodiment is substantially the same manner as Example 1, and difference is:
On the pipeline between the cooling water inlet of the water out of air heater 18 and Absorption Refrigerator 5, further be parallel with the cooling tower 55 that is subjected to valve control, so that when the water temperature of the cooling water inlet of Absorption Refrigerator 5 is too high, can assist to cooling water temperature.
Embodiment 4
Present embodiment is substantially the same manner as Example 1, and difference is:
Electric heater 3 can be replaced by the hot-water branch of being controlled by valve.
Blower fan 9 and/blower fan 17 can not establish or change the position is set, such as, blower fan 9 can be arranged on the air outlet slit of aerial cooler 8, blower fan 17 can be arranged on the air outlet slit of regenerator 16.

Claims (10)

1. a solar energy cascade utilizes the formula air-conditioning system, comprise solar thermal collector, Absorption Refrigerator, form the hot water storage tank of the first heat medium water closed circuit with described solar thermal collector, form the aerial cooler of the first chilled water closed circuit with described Absorption Refrigerator, be arranged at described aerial cooler the air intake leading portion dehumidifier and form the regenerator of dehumidification solution closed circuit with described dehumidifier, it is characterized in that described solar energy cascade utilizes the formula air-conditioning system further to comprise the heating water tank that is communicated with and forms the second heat medium water closed circuit by pipeline and described Absorption Refrigerator and described hot water storage tank, be arranged in the described heating water tank and be included in weak solution water back in the described dehumidification solution closed circuit, form the solution cooler of the second chilled water closed circuit with described Absorption Refrigerator, and be arranged in the described solution cooler and be included in concentrated solution cooling pipe in the described dehumidification solution closed circuit.
2. solar energy cascade as claimed in claim 1 utilizes the formula air-conditioning system, it is characterized in that, described hot water storage tank is communicated with described solar thermal collector by pipeline and forms the described first heat medium water closed circuit, described aerial cooler is communicated with described Absorption Refrigerator by pipeline and forms the described first chilled water closed circuit, and described solution cooler is communicated with described Absorption Refrigerator by pipeline and forms the described second chilled water closed circuit.
3. solar energy cascade as claimed in claim 2 utilizes the formula air-conditioning system, it is characterized in that, described weak solution water back is arranged between the solution inlet of the taphole of described dehumidifier and described regenerator, between the taphole that described concentrated solution cooling pipe is arranged on described regenerator enters the mouth with the solution of described dehumidifier.
4. solar energy cascade as claimed in claim 2 utilizes the formula air-conditioning system, it is characterized in that, be provided with pump No. one in the described first heat medium water closed circuit, be provided with pump No. two in the described second heat medium water closed circuit, the described first chilled water closed circuit is provided with pump No. three, the described second chilled water closed circuit is provided with pump No. four, be provided with pump No. five between the solution inlet of described weak solution water back and described regenerator, be provided with pump No. six between the solution inlet of described concentrated solution cooling pipe and described dehumidifier.
5. solar energy cascade as claimed in claim 2 utilizes the formula air-conditioning system, it is characterized in that, the water inlet of described aerial cooler is communicated with an outlet of a water knockout drum, the water out of described aerial cooler is communicated with an inlet of a water collector, the water inlet of described solution cooler is communicated with another outlet of described water knockout drum, and the water out of described solution cooler is communicated with another inlet of described water collector.
6. solar energy cascade as claimed in claim 5 utilizes the formula air-conditioning system, it is characterized in that, the chilled water outlet of described Absorption Refrigerator is communicated with the inlet of described water knockout drum, and the chilled water inlet of described Absorption Refrigerator is communicated with the outlet of described water collector.
7. solar energy cascade as claimed in claim 1 utilizes the formula air-conditioning system, it is characterized in that, this system further comprises the air heater that is communicated with and forms cooling water circulation loop with described Absorption Refrigerator, the air intake of described air heater is communicated with outdoor new wind, and the air outlet slit of described air heater is communicated with the air intake of described regenerator.
8. solar energy cascade as claimed in claim 7 utilizes the formula air-conditioning system, it is characterized in that, pipeline between described solar thermal collector and the described hot water storage tank is provided with auxiliary thermal source, is provided with the auxiliary cold source branch road between the water out of described air heater and the cooling water inlet of described Absorption Refrigerator.
9. solar energy cascade as claimed in claim 7 utilizes the formula air-conditioning system, it is characterized in that, the water inlet of described air heater is communicated with the coolant outlet of described Absorption Refrigerator, and the water out of described air heater is communicated with the cooling water inlet of described Absorption Refrigerator.
10. utilize the formula air-conditioning system as the described solar energy cascade of one of claim 1～9, it is characterized in that, the heat medium water inlet of described Absorption Refrigerator is communicated with the high-temperature water outlet of described hot water storage tank by pipeline, the heat medium water outlet of described Absorption Refrigerator is communicated with the inlet of described heating water tank by pipeline, and the outlet of described heating water tank is communicated with the water at low temperature inlet of described hot water storage tank by pipeline.
CNU2007200483746U 2007-02-07 2007-02-07 Solar energy stepping utilization type air-conditioning system Expired - Fee Related CN201016499Y (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101644507A (en) * 2009-08-20 2010-02-10 中冶赛迪工程技术股份有限公司 Process gas cooling system
CN101240925B (en) * 2007-02-07 2012-03-21 广东志高空调有限公司 Solar energy absorption type liquid dehumidifying air-conditioning system
CN102506472A (en) * 2011-09-29 2012-06-20 浙江工商大学 Multi-energy driving cooling and heating air conditioner water heater all-in-one machine
CN102997357A (en) * 2012-11-28 2013-03-27 河南科技大学东海硅产业节能技术研究院 Absorption refrigeration and solution dehumidification air-conditioning system based on solar heat recovery
CN103791576A (en) * 2014-02-17 2014-05-14 东南大学 Low-grade heat source drive solution temperature changing two-stage solution dehumidification air conditioner
CN110553310A (en) * 2019-09-11 2019-12-10 湖南大学 air supply system of air conditioner

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101240925B (en) * 2007-02-07 2012-03-21 广东志高空调有限公司 Solar energy absorption type liquid dehumidifying air-conditioning system
CN101644507A (en) * 2009-08-20 2010-02-10 中冶赛迪工程技术股份有限公司 Process gas cooling system
CN102506472A (en) * 2011-09-29 2012-06-20 浙江工商大学 Multi-energy driving cooling and heating air conditioner water heater all-in-one machine
CN102506472B (en) * 2011-09-29 2015-08-05 浙江工商大学 Multiple-energy-source drives cold-storage and thermal storage air conditioner and water heater integrated machine
CN102997357A (en) * 2012-11-28 2013-03-27 河南科技大学东海硅产业节能技术研究院 Absorption refrigeration and solution dehumidification air-conditioning system based on solar heat recovery
CN102997357B (en) * 2012-11-28 2014-12-24 河南科技大学东海硅产业节能技术研究院 Absorption refrigeration and solution dehumidification air-conditioning system based on solar heat recovery
CN103791576A (en) * 2014-02-17 2014-05-14 东南大学 Low-grade heat source drive solution temperature changing two-stage solution dehumidification air conditioner
CN103791576B (en) * 2014-02-17 2016-04-06 东南大学 A kind of low-grade heat source drives and becomes solution temperature two-stage liquid desiccant air conditioning
CN110553310A (en) * 2019-09-11 2019-12-10 湖南大学 air supply system of air conditioner
CN110553310B (en) * 2019-09-11 2021-06-22 湖南省环境保护科学研究院 Air supply system of air conditioner

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