CN107098419A - A kind of solar airconditioning seawater desalination system - Google Patents

A kind of solar airconditioning seawater desalination system Download PDF

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Publication number
CN107098419A
CN107098419A CN201710415656.3A CN201710415656A CN107098419A CN 107098419 A CN107098419 A CN 107098419A CN 201710415656 A CN201710415656 A CN 201710415656A CN 107098419 A CN107098419 A CN 107098419A
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lithium
heat
evaporator
solar
lithium bromide
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熊开富
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Kunshan Shengguang New Energy Technology Co Ltd
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Kunshan Shengguang New Energy Technology Co Ltd
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Priority to CN201710415656.3A priority Critical patent/CN107098419A/en
Publication of CN107098419A publication Critical patent/CN107098419A/en
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
    • F25B15/06—Sorption machines, plants 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • 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
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • 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
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/142—Solar thermal; Photovoltaics
    • 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
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

The present invention relates to field of sea water desalting technology, more particularly to a kind of solar airconditioning seawater desalination system, the solar airconditioning seawater desalination system, including：Solar energy heat collector, sea water desalinating unit and refrigerating plant, the thermogenetic steam of lithium-bromide solution suction of lithium bromide concentrator is condensed into after fresh water the lithium-bromide solution entered through heat exchanger in the evaporation absorber, lithium bromide concentrator into lithium bromide evaporator tube side and enters the evaporation absorber through heat exchanger；The shell side that lithium-bromide solution in the evaporation absorber enters lithium bromide evaporator inhales thermogenetic steam into thermal source of the first evaporator as desalinization, and the lithium-bromide solution of concentration enters lithium bromide concentrator.Using technical solution of the present invention, the energy utilization rate of solar energy is improved, and the technical scheme is suitable for expanding the scale of solar airconditioning seawater desalination system.

Description

A kind of solar airconditioning seawater desalination system
Technical field
The present invention relates to field of sea water desalting technology, more particularly to a kind of solar airconditioning seawater desalination system.
Background technology
China's desalination technology starting is more early, and current desalination with Solar Energy main development mode is solar energy Overhead utility generates electricity, and is powered with microgrid formula and carries out desalinization by counter-infiltration.The efficiency of solar energy power generating is very low, therefore Energy utilization rate is very low.Desalination with Solar Energy also has using low-temperature multiple-effect seawater desalination technology, and low-temperature multi-effect technology is The highest evaporating temperature for referring to seawater is less than 70 DEG C of multi-effect distilling desalination technology, is by multiple evaporator series, with certain The steam input of amount is by repeatedly evaporating and condensing, and the evaporating temperature of the evaporator of previous effect is more than the evaporator of latter effect Evaporating temperature, so as to obtain being multiple times than the desalination process of the distilled water of quantity of steam.Solar low-temperature multi-effect sea water desalting technology by In the factor of energy-conservation, quickly grow in recent years.
Current solar airconditioning mainly uses sorption type refrigerating technology, and the technology is special using the absorption and evaporation of absorbent Property the technology freezed, specially solar thermal collector absorbs solar radiation and the heat energy of generation is delivered into heat transfer medium, Absorbent carries out heat exchange with heat transfer medium, and the absorption and evaporation characteristic for recycling absorbent are used to freeze, but this mistake There is energy dissipation in journey, be unfavorable for expansion scale.
The content of the invention
The defect of prior art is that energy utilization rate is relatively low in solar seawater desalination system, solar air-conditioner system In there is also the waste of energy.
It is an object of the invention to provide a kind of solar airconditioning seawater desalination system, to improve energy utilization rate.
Solar airconditioning seawater desalination system of the present invention, including：Solar energy heat collector, sea water desalinating unit and refrigeration dress Put, wherein, the solar energy heat collector includes solar thermal collector, lithium bromide concentrator and the closure equipped with heat-conducting medium Heat conducting pipe, the solar thermal collector and lithium bromide concentrator are arranged on the pipeline of heat conducting pipe；The sea water desalinating unit bag Condenser and at least two-effect evaporation device are included, wherein, the last evaporator positioned at least two-effect evaporation device one end is connected with condenser； The refrigerating plant includes evaporation absorber, and the lithium bromide evaporator and refrigerator connected respectively with evaporation absorber, institute Lithium bromide evaporator is stated to connect with lithium bromide concentrator and positioned at the first evaporator of at least two-effect evaporation device other end respectively；Bromine The thermogenetic steam of lithium-bromide solution suction for changing lithium inspissator is condensed into after fresh water through heat exchanger into lithium bromide evaporator tube side Into the evaporation absorber, the lithium-bromide solution in lithium bromide concentrator enters the evaporation absorber through heat exchanger；It is described The shell side that lithium-bromide solution in evaporation absorber enters lithium bromide evaporator inhales thermogenetic steam into first evaporator work For the thermal source of desalinization, the lithium-bromide solution of concentration enters lithium bromide concentrator.
The lithium-bromide solution of lithium bromide concentrator inhales thermogenetic steam and is condensed into fresh water into lithium bromide evaporator tube side The lithium-bromide solution entered by heat exchanger in the evaporation absorber, lithium bromide concentrator enters the evaporation through heat exchanger and inhaled Receive device；The shell side that lithium-bromide solution in the evaporation absorber enters lithium bromide evaporator inhales thermogenetic steam into first effect Evaporator is as the thermal source of desalinization, and the lithium-bromide solution of concentration enters lithium bromide concentrator.
It is preferred that, the solar thermal collector is high-temp solar heat collector.
Preferably, the high-temp solar heat collector is slot type glass-vacuum tube heat collector.
It is preferred that, the heat-conducting medium is to be provided with conduction oil elevator pump on conduction oil, the heat conducting pipe.
It is preferred that, the lithium bromide concentrator is high temperature inspissator, including housing and is arranged at the demister of housing tip.
It is preferred that, the lithium bromide evaporator includes housing, the heat-exchanging tube bundle in housing, above heat-exchanging tube bundle Spray thrower, and the fresh water collecting case positioned at heat-exchanging tube bundle one end.
It is preferred that, the seawater in the condenser is divided into two strands after sea water circulating pump, and one is pumped at least two-effect evaporation Device, one is directly discharged.
It is preferred that, the evaporation absorber includes vaporization chamber, absorption chamber and between the vaporization chamber and absorption chamber Fresh water in demister, vaporization chamber is used to freeze, and the lithium-bromide solution in absorption chamber is pumped into lithium bromide evaporator by liquid pump Shell side.
It is preferred that, the heat exchanger includes two-stage heat exchanger, respectively Recuperative heat exchanger and cooling water heat exchanger.
It is preferred that, the heat exchanger is double pipe heat exchanger or plate type heat exchanger.
In solar airconditioning seawater desalination system of the present invention, because the heat energy for obtaining solar thermal collector passes through bromination The circulation of lithium evaporator and lithium bromide concentrator is respectively used to desalinization and refrigeration, and rationally utilizes waste heat by heat exchanger, Therefore energy utilization rate is improved, in addition, thermal source of the steam produced in lithium bromide evaporator as desalinization, Ke Yiti High solar utilization rate, improves aquifer yield.
In solar airconditioning seawater desalination system of the present invention, because the heat energy for obtaining solar thermal collector passes through bromination The circulation of lithium evaporator and lithium bromide concentrator is respectively used to desalinization and refrigeration, and rationally utilizes waste heat by heat exchanger, Therefore energy utilization rate is improved, in addition, thermal source of the steam produced in lithium bromide evaporator as desalinization, Ke Yiti High solar utilization rate, improves aquifer yield.
Brief description of the drawings
Fig. 1 is the structural representation of solar airconditioning seawater desalination system of the present invention.
Reference：
1- original seawater inlet ports；2- seawater discharges mouthful；3- concentrated seawater floss holes；4- fresh water floss holes；
5- cooling water discharge ports；6- cooling water intakes；7- solar thermal collectors；8- conduction oil elevator pumps；
9- lithium bromide concentrators；10- lithium bromide evaporators；11- evaporators；12- condensers；
13- sea water circulating pumps；14- concentrated seawater pumps；15- fresh water pumps；16- Recuperative heat exchangers；
17- Recuperative heat exchangers；18- cooling water heat exchangers；19- cooling water heat exchangers；20- liquid pumps；
21- absorption chambers；22- vaporization chambers；23- refrigerators；24- heat conducting pipes；25- evaporation absorbers
In order to solve the low technical problem of solar seawater desalination system energy utilization rate present in prior art, the present invention is carried A kind of solar airconditioning seawater desalination system is supplied.In technical solution of the present invention, due to the heat for obtaining solar thermal collector Desalinization and refrigeration can be respectively used to by the circulation of lithium bromide evaporator and lithium bromide concentrator, and it is reasonable by heat exchanger Using waste heat, therefore energy utilization rate is improved, in addition, heat of the steam produced in lithium bromide evaporator as desalinization Source, can expand the scale of desalinization, improve aquifer yield.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, further is made to the present invention by the following examples Describe in detail.
As shown in figure 1, solar airconditioning seawater desalination system of the present invention, including：Solar energy heat collector, desalinization dress Put and refrigerating plant, wherein, as shown in figure 1, solar airconditioning seawater desalination system of the present invention, including：Solar energy heat collector, Sea water desalinating unit and refrigerating plant, wherein, solar energy heat collector includes solar thermal collector 7, the and of lithium bromide concentrator 9 The heat conducting pipe 24 of closure equipped with heat-conducting medium, solar thermal collector 7 and lithium bromide concentrator 9 are arranged at the pipeline of heat conducting pipe 24 On；Sea water desalinating unit includes condenser 12 and at least two-effect evaporation device 11, wherein, positioned at least one end of two-effect evaporation device 11 Last evaporator is connected with condenser 12；Refrigerating plant includes evaporation absorber 25, and connects respectively with evaporation absorber 25 Lithium bromide evaporator 10 and refrigerator 23, the lithium bromide evaporator 10 is respectively with lithium bromide concentrator 9 and positioned at least two Imitate the first evaporator connection of the other end of evaporator 11；Lithium-bromide solution in lithium bromide concentrator 9 is inhaled thermogenetic steam and entered Enter the tube side of lithium bromide evaporator 10 and be condensed into after fresh water and enter the evaporation absorber through heat exchanger, in lithium bromide concentrator 9 Lithium-bromide solution enters the evaporation absorber through heat exchanger；Lithium-bromide solution in the evaporation absorber steams into lithium bromide The shell side for sending out device 10 inhales thermogenetic steam into thermal source of the first evaporator as desalinization, and the lithium-bromide solution of concentration enters Enter lithium bromide concentrator 10.
In the inventive solutions, the heat energy that solar thermal collector absorption solar radiation is produced passes through in heat conducting pipe Heat-conducting medium is conveyed to the lithium-bromide solution in lithium bromide concentrator, and forming steam after lithium-bromide solution heat absorption enters lithium bromide Steam in lithium-bromide solution and tube side in the tube side of evaporator, lithium bromide evaporator shell side carries out heat exchange type and steamed into secondary Vapour can be used for the desalinization of at least two-effect evaporation device, Ke Yiyong as the steam source in sea water desalinating unit, the steam In triple effect, quadruple effect, quintuple effect evaporator desalinization, it might even be possible to for six effect or seven effect evaporators desalinization, expand The scale of desalinization, improves aquifer yield, and improve energy utilization rate.In addition, exported in solar energy heat collector Heat energy is additionally operable to refrigeration, and many parts are carried out to the energy and are utilized, energy utilization rate is improved.
It is preferred that, solar thermal collector 7 is high-temp solar heat collector.
Those skilled in the art understands that solar thermal collector can be divided into the high temperature sun according to the scope of operating temperature Can heat collector, middle temperature solar heat collector and low-temperature solar energy heat collector.It is preferred that, using high-temp solar heat collector, heat conduction The temperature of heat-conducting medium in pipe can reach 160 ~ 170 degrees Celsius, it might even be possible to reach 200 degrees Celsius, such high temperature is led Thermal medium makes the lithium-bromide solution in lithium bromide concentrator be easier evaporation.In order to further improve energy utilization rate, Ke Yigen The steam condition produced according to lithium bromide concentrator, increases heat-pump apparatus, improves steam circulation amount, can thus increase lithium bromide The treating capacity of solution concentration, increases air conditioner refrigerating amount.
It is preferred that, high-temp solar heat collector is slot type glass-vacuum tube heat collector.
Glass-vacuum tube is placed in flute profile solar absorption panels, increases the absorption efficiency to solar energy, further improves Energy utilization rate.
It is preferred that, heat-conducting medium is to be provided with conduction oil elevator pump 8 on conduction oil, heat conducting pipe 24.
It is preferred that, heat-conducting medium is to be provided with conduction oil elevator pump 8 on conduction oil, heat conducting pipe 24.
Heat-conducting medium uses conduction oil, can set solar thermal collector and the height of lithium bromide concentrator according to actual conditions Degree is poor, realizes the density contrast flowing of conduction oil, preferably, when the density contrast of conduction oil is not enough to support conduction oil in heat conducting pipe During flowing, conduction oil elevator pump 8 can be set on heat conducting pipe, the conveying power of conduction oil is used as.
It is preferred that, lithium bromide concentrator 9 is high temperature inspissator, including housing and is arranged at the demister of housing tip.
Supporting with high-temp solar heat collector, lithium bromide concentrator also uses high temperature inspissator, due to solar thermal collector Make the temperature of conduction oil very high, when temperature very high conduction oil exchanges heat through heat conducting pipe and lithium-bromide solution, lithium-bromide solution production Raw high-temperature steam, therefore high temperature inspissator is used, the demister of housing tip is used to remove the steam for entering lithium bromide evaporator Remove lithium bromide droplet.
It is preferred that, lithium bromide evaporator 10 includes housing, the heat-exchanging tube bundle in housing, above heat-exchanging tube bundle Spray thrower, and the fresh water collecting case positioned at heat-exchanging tube bundle one end.
Lithium bromide evaporator uses shell-and-tube heat exchanger, can be even more many for one or two.The relatively low bromination of temperature Lithium solution is sprayed to the outer wall of heat-exchanging tube bundle by spray thrower, and heat exchange is carried out with the vapours in heat-exchanging tube bundle, and lithium bromide is molten Liquid evaporates to form steam as the steam source in sea water desalinating unit, and the lithium-bromide solution of concentration enters lithium bromide concentrator, Vapours, which is condensed, to be formed fresh water and is collected by fresh water collecting case, the source for low-temperature cold water in refrigerating plant.
It is preferred that, it is divided into two after sea water circulating pump 13 with the seawater in the condenser 12 that low-temperature multi-effect evaporator is connected Stock, one is pumped at least two evaporators 11 respectively, and one is directly discharged.
The seawater entered by former seawater inlet port 1 is preferably the seawater simply pre-processed, and seawater is inhaled into condenser 12 It is divided into two strands by the lifting of sea water circulating pump 13 after heat, one enters evaporator 11, the quantity of evaporator 11 is at least two effects, steams Hair device is low-temperature multi-effect evaporator, and this stock market water is pumped into multi-effect evaporator respectively with pipeline, and another stock market water is directly arranged Put.
It is preferred that, evaporation absorber 25 includes vaporization chamber 22, absorption chamber 21 and between vaporization chamber 22 and absorption chamber 21 Demister, the fresh water in vaporization chamber 22 is used to freeze, and the lithium-bromide solution in absorption chamber 21 is pumped into lithium bromide by liquid pump 20 The shell side of evaporator 10.
The vaporization chamber 22 of evaporation absorber 25 is connected with absorption chamber 21 by demister, the fresh water evaporation shape in vaporization chamber 22 Into steam entered by demister in absorption chamber 21, the lithium-bromide solution in dilution absorption chamber 21 is light in vaporization chamber 22 Water is that the fresh water in lithium bromide evaporator passes through the low temperature fresh water that heat exchange is obtained, and low temperature fresh water enters refrigerator 23, for freezing, Wherein, the fresh water circulation in refrigerator 23 is temperature difference self-loopa, or using the fresh water in auxiliary suction pumps promotion refrigerator 23 Circulation；The lithium bromide that lithium-bromide solution in absorption chamber 21 obtains for the lithium-bromide solution in lithium bromide concentrator 9 through heat exchanger Lithium-bromide solution in solution, and the fresh water dilution that the lithium-bromide solution is evaporated by vaporization chamber 22, absorption chamber 21 passes through Liquid pump 20 is pumped into heat absorption in lithium bromide evaporator and produces steam as the thermal source of sea water desalinating unit.
It is preferred that, heat exchanger includes two-stage heat exchanger, respectively Recuperative heat exchanger and cooling water heat exchanger.
It is preferred that, heat exchanger includes two-stage heat exchanger, respectively Recuperative heat exchanger and cooling water heat exchanger.
Lithium-bromide solution in lithium bromide concentration 9 passes through two-stage heat exchanger, i.e. Recuperative heat exchanger 16 and cooling water heat exchanger Enter absorption chamber 21 after 18 coolings；Fresh water in lithium bromide evaporator 10 passes through two-stage heat exchanger, i.e. Recuperative heat exchanger 17 and cold But vaporization chamber 22 is entered after water- to-water heat exchanger 19 cools, the fresh water can also be light in lithium bromide evaporator 10 and first evaporator The fresh water for being hydrated to be formed together.Cooling water heat exchanger 18 and cooling water heat exchanger 19 by leading to cooling water in addition, such as Fig. 1 institutes Show, cooling water is divided into two strands after the entrance of cooling water intake 6, respectively enters cooling water heat exchanger 18 and cooling water heat exchanger 19, then discharged by cooling water discharge port 5；Other fluid is from absorption chamber 21 in Recuperative heat exchanger 16 and Recuperative heat exchanger 17 Two strands of lithium-bromide solutions being pumped into by liquid pump 20, the temperature of the lithium-bromide solution is relatively low, by Recuperative heat exchanger 16 and return Heat exchanger 17 enters lithium bromide evaporator 10 after heating up.Recuperative heat exchanger 16 and Recuperative heat exchanger 17 have been utilized respectively lithium bromide The waste heat of fresh water has been flowed out in the waste heat and lithium bromide evaporator 10 of lithium-bromide solution in inspissator 9, has been added to used heat Utilize.
It is preferred that, heat exchanger is double pipe heat exchanger or plate type heat exchanger.
Two Recuperative heat exchangers and two cooling water heat exchangers can be double pipe heat exchanger or plate type heat exchanger, bushing type Heat exchanger is more abundant for low discharge media for heat exchange, better profits from the backheat of lithium-bromide solution pumped out in lithium bromide absorption room Heat exchange, improves energy utilization rate.
Be exemplified below an optimal specific embodiment illustrate the present invention solar airconditioning seawater desalination system and its Operation principle, as shown in figure 1, all devices including Fig. 1, certainly, the present invention is not limited to following examples.According to steam Flow direction, multi-effect evaporator is followed successively by first evaporator, 2nd effect evaporator, third effect evaporator, until end effect evaporation Device, the steam of last evaporator is passed through condenser.
As shown in figure 1, solar airconditioning seawater desalination system of the present invention, including：Solar energy heat collector, desalinization dress Put and refrigerating plant, solar heat conveying circulation, desalting process and kind of refrigeration cycle are corresponded to respectively.
Solar heat conveying circulation equipment therefor includes：Solar thermal collector 7, conduction oil elevator pump 8, lithium bromide concentration Device 9, heat conducting pipe 24, wherein, heat-conducting medium in heat conducting pipe 24 is conduction oil, the conveying power of conduction oil can for temperature difference or Conduction oil elevator pump 8, can design the difference in height of solar thermal collector 7 and lithium bromide concentrator 9 according to actual conditions, and realization is led The density contrast flowing of deep fat；Solar thermal collector 7 collects solar energy and is converted to heat energy, makes the heat-conducting medium liter in heat conducting pipe 24 Temperature.The heat-conducting medium of heat enters lithium bromide concentrator 9 and carries out heat exchange reduction temperature.The heat-conducting medium of temperature reduction passes through conduction oil Solar thermal collector 7 is returned after elevator pump 8 and continues heating of absorbing heat.
Desalting process equipment therefor includes：At least two-effect evaporation device 11, condenser 12, sea water circulating pump 13, dense sea Water pump 14 and fresh water pump 15, wherein, evaporator is low-temperature multi-effect evaporator, and condenser can also steam for an effect or two effects, end effect Hair device is connected with condenser 12；The seawater entered by former seawater water inlet 1, is the seawater by simply pre-processing, and seawater enters After condenser 12 is lifted after absorbing heat by sea water circulating pump 13, evaporator 11 is partly into, a part passes through seawater discharge mouthful 2 Discharge；The concentrated seawater that evaporator 11 is produced is discharged by concentrated seawater pump 14 from concentrated seawater floss hole 3, the fresh water that evaporator 11 is produced Discharged by fresh water pump 15 from fresh water floss hole 4.
Kind of refrigeration cycle equipment therefor includes：Lithium bromide concentrator 9, lithium bromide evaporator 10, Recuperative heat exchanger 16, backheat are changed Hot device 17, cooling water heat exchanger 18, cooling water heat exchanger 19, liquid pump 20, absorption chamber 21, vaporization chamber 22 and refrigerator 23；Bromination Lithium inspissator 9 absorbs the heat of conduction oil in heat conducting pipe 24, its internal lithium-bromide solution heating is produced into steam, steam passes through Enter lithium bromide evaporator 10 after the demister of case top, and the lithium-bromide solution concentrated enters successively in the presence of pressure difference Enter Recuperative heat exchanger 16 and cooling water heat exchanger 18, subsequently into the absorption chamber 21 of evaporation absorber, lithium bromide concentrator 9 is run Pressure is malleation, and the operating pressure of evaporation absorber absorption chamber 21 is negative pressure, and such pressure difference promotes the lithium-bromide solution of concentration Absorption chamber 21 is flowed into from lithium bromide concentrator 9；Lithium bromide evaporator 10 is connected with lithium bromide concentrator 9, and lithium bromide concentrator 9 is produced Raw steam enters lithium bromide evaporator 10.In the lithium-bromide solution and tube side that spray thrower sprays out in lithium bromide evaporator 10 Steam carries out heat exchange, and lithium-bromide solution absorbs heat to form steam as the steaming in sea water desalinating unit in first evaporator tube side Vapour, and the lithium-bromide solution after concentrating enters lithium bromide concentrator 9 by bottom communicating pipe；The absorption chamber of evaporation absorber 25 After the steam that lithium-bromide solution absorption vaporization chamber 22 in 21 is produced is diluted, after the lifting of liquid pump 20, it is divided into two, one Branch enters Recuperative heat exchanger 16, and one enters Recuperative heat exchanger 17, and the lithium-bromide solution after absorbing heat respectively evaporates into lithium bromide The spray thrower of device 10 sprays out；Cooling water is divided into two strands after the entrance of cooling water intake 6, respectively enters cooling water heat exchanger 18 and cooling water heat exchanger 19, then discharged by cooling water discharge port 5；The steam of lithium bromide evaporator 10 condensation produce fresh water and The fresh water that the first evaporator of evaporator 11 is produced, enters evaporation after Recuperative heat exchanger 17 and cooling water heat exchanger 19 cool The vaporization chamber 22 of absorber；The interior media of refrigerator 23 is the inner cryogenic fresh water of vaporization chamber 22 of evaporation absorber, after heat absorption Water returns to vaporization chamber 22.
Lithium bromide evaporator 10, evaporator 11, condenser 12 in Fig. 1, and evaporation absorber 25 vaporization chamber 22 and inhale The operating condition for receiving room 21 is all negative pressure, thus in order to ensure in said apparatus to be negative pressure, it is necessary to vaccum-pumping equipment, conventional is Vavuum pump（It is not drawn into Fig. 1）.
In technical solution of the present invention, solar thermal collector passes through the lithium-bromide solution in heat conducting pipe and lithium bromide concentrator Carry out the lithium-bromide solution in heat exchange, lithium bromide concentrator and inhale the tube side condensation that thermogenetic steam enters lithium bromide evaporator Fresh water is formed, the fresh water enters evaporation absorber and is used to freeze after cooling through heat exchanger；Lithium bromide in evaporation absorber is molten The shell side that liquid is pumped into lithium bromide evaporator by liquid pump absorbs heat to form at least two-effect evaporation that steam enters sea water desalinating unit Device, the lithium-bromide solution of concentration enters lithium bromide concentrator.The specific device of the present invention is not limited to the device shown in Fig. 1, only It is to realize to desalinate seawater by solar energy using above three process, and for freezing.Using above-mentioned system, the sun The solar energy that energy heat collector absorbs passes to the lithium-bromide solution in lithium bromide concentrator, lithium bromide concentrator by heat-conducting medium With the vaporization cycle in lithium bromide evaporator by lithium-bromide solution, steam is passed into low-temperature multi-effect evaporator light for seawater Change, the lithium-bromide solution of concentration is delivered into evaporation absorber participates in air conditioner refrigerating, improves solar energy utilization ratio, is conducive to expanding The scale of big solar airconditioning seawater desalination system.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these changes and modification.

Claims (10)

1. a kind of solar airconditioning seawater desalination system, it is characterised in that including：Solar energy heat collector, sea water desalinating unit And refrigerating plant, wherein, the solar energy heat collector includes solar thermal collector（7）, lithium bromide concentrator（9）With equipped with leading The heat conducting pipe of the closure of thermal medium（24）, the solar thermal collector（7）And lithium bromide concentrator（9）It is arranged at heat conducting pipe（24） Pipeline on；The sea water desalinating unit includes condenser（12）At least two-effect evaporation device（11）, wherein, positioned at least two effects Evaporator（11）The last evaporator and condenser of one end（12）Connection；The refrigerating plant includes evaporation absorber（25）, with And respectively with evaporation absorber（25）The lithium bromide evaporator of connection（10）And refrigerator（23）, the lithium bromide evaporator（10） Respectively with lithium bromide concentrator（9）With positioned at least two-effect evaporation device（11）The first evaporator connection of the other end；Lithium bromide is dense Contracting device（9）Lithium-bromide solution inhale thermogenetic steam and enter lithium bromide evaporator（10）Tube side is condensed into after fresh water through heat exchanger Into the evaporation absorber, lithium bromide concentrator（9）Interior lithium-bromide solution enters the evaporation absorber through heat exchanger；Institute The lithium-bromide solution stated in evaporation absorber enters lithium bromide evaporator（10）Shell side inhale thermogenetic steam and enter first effect and steam Device is sent out as the thermal source of desalinization, the lithium-bromide solution of concentration enters lithium bromide concentrator（10）.
2. solar airconditioning seawater desalination system as claimed in claim 1, it is characterised in that the solar thermal collector（7） For high-temp solar heat collector.
3. solar airconditioning seawater desalination system as claimed in claim 2, it is characterised in that the high-temp solar heat collector For slot type glass-vacuum tube heat collector.
4. solar airconditioning seawater desalination system as claimed in claim 1, it is characterised in that the heat-conducting medium is heat conduction Oil, the heat conducting pipe（24）On be provided with conduction oil elevator pump（8）.
5. solar airconditioning seawater desalination system as claimed in claim 1, it is characterised in that the lithium bromide concentrator（9） For high temperature inspissator, including housing and the demister for being arranged at housing tip.
6. solar airconditioning seawater desalination system as claimed in claim 1, it is characterised in that the lithium bromide evaporator（10） Heat-exchanging tube bundle including housing, in housing, the spray thrower above heat-exchanging tube bundle, and positioned at heat-exchanging tube bundle one end Fresh water collecting case.
7. solar airconditioning seawater desalination system as claimed in claim 1, it is characterised in that the seawater warp in the condenser Sea water circulating pump（13）After be divided into two strands, one is pumped at least two-effect evaporation device（11）, one is directly discharged.
8. solar airconditioning seawater desalination system as claimed in claim 1, it is characterised in that the evaporation absorber（25）Bag Include vaporization chamber（22）, absorption chamber（21）With positioned at the vaporization chamber（22）And absorption chamber（21）Between demister, vaporization chamber （22）Interior fresh water is used to freeze, absorption chamber（21）Interior lithium-bromide solution passes through liquid pump（20）It is pumped into lithium bromide evaporator（10） Shell side.
9. solar airconditioning seawater desalination system as claimed in claim 1, it is characterised in that the heat exchanger is changed including two-stage Hot device, respectively Recuperative heat exchanger and cooling water heat exchanger.
10. solar airconditioning seawater desalination system as claimed in claim 1, it is characterised in that the heat exchanger is bushing type Heat exchanger or plate type heat exchanger.
CN201710415656.3A 2017-06-05 2017-06-05 A kind of solar airconditioning seawater desalination system Withdrawn CN107098419A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108194292A (en) * 2017-12-29 2018-06-22 天津绿能通汇科技发展有限公司 Solar energy Stirling photo-thermal power generation utilizes system with sea water desalination thermoelectricity synergistic combination
CN109579178A (en) * 2018-10-18 2019-04-05 浙江大学山东工业技术研究院 A kind of air-conditioning system and its application method and sea water desalination application method
US11407659B1 (en) 2021-07-09 2022-08-09 Kuwait Institute For Scientific Research Desalination and cooling system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108194292A (en) * 2017-12-29 2018-06-22 天津绿能通汇科技发展有限公司 Solar energy Stirling photo-thermal power generation utilizes system with sea water desalination thermoelectricity synergistic combination
CN108194292B (en) * 2017-12-29 2023-10-27 天津绿能通汇科技发展有限公司 Solar Stirling photo-thermal power generation and sea water desalination thermoelectric cooperative combination utilization system
CN109579178A (en) * 2018-10-18 2019-04-05 浙江大学山东工业技术研究院 A kind of air-conditioning system and its application method and sea water desalination application method
US11407659B1 (en) 2021-07-09 2022-08-09 Kuwait Institute For Scientific Research Desalination and cooling system

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