CN100427851C - Solar-natural gas combined driven energy-saving air condioner - Google Patents

Solar-natural gas combined driven energy-saving air condioner Download PDF

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Publication number
CN100427851C
CN100427851C CNB2007100192567A CN200710019256A CN100427851C CN 100427851 C CN100427851 C CN 100427851C CN B2007100192567 A CNB2007100192567 A CN B2007100192567A CN 200710019256 A CN200710019256 A CN 200710019256A CN 100427851 C CN100427851 C CN 100427851C
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energy
solar
pressure generator
heat
heat exchanger
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CNB2007100192567A
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CN101000181A (en
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方贵银
杨帆
张曼
李辉
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Nanjing University
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Nanjing University
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/272Solar heating or cooling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems

Abstract

The invention discloses a solar energy-natural gas combined driven energy saving air-conditioner, where the outdoor machine set comprises solar heat collector, solar heat storer and natural gas heater; a heat exchanger pipe coil in the solar heat collector is connected with the two ends of the other heat exchanger in the high pressure generator through the natural heater and circulating pump to drive indoor machine set to work. And it uses heat source as drive energy, integrating refrigeration, heating and living hot water supply; the condenser and absorber in the machine set adopt wind cooling, omitting the cooling water circulating system so as to be used at home and in medium- and small-sized buildings; and its performance coefficient can be up to above 1.5, reducing energy consumption and making full use of renewable energy source. In addition, it has characters of environmental protection, saving energy, and safety.

Description

Solar-natural gas is united the energy-saving type air conditioner of driving
One, technical field
The present invention relates to a kind of refrigeration air-conditioner, specifically a kind of solar-natural gas is united the high efficiency energy saving air conditioner of driving.
Two, background technology
Since reform and opening-up, the overall national strength and the living standards of the people of China all are greatly increased.Energy industry has obtained tremendous development as one of basic industry of national economy.But the needs of fast development of national economy and the sharp increase of people's lives usefulness energy are not still satisfied in the development of energy industry, and national energy scarcity situation still exists.
Solve present energy scarcity problem, just must develop regenerative resource, as solar energy, geothermal energy, biomass energy, wind energy, ocean energy etc.In various regenerative resources, solar energy is most important basic power source.From geothermal energy, biomass energy, wind energy, ocean energy etc. are all from solar energy in broad terms, solar energy is not only " inexhaustible, nexhaustible " and is not produced greenhouse gases, pollution-free, is the clear energy sources that helps protecting environment.China is the important component part of solar energy utilization as regenerative resource in the alternative energy strategy, and the development of having put into effect a series of policies encouragement and the support conversion of solar energy research and the cause of application.Research and development and application that " the regenerative resource method " implemented in 2006 then further advanced solar energy to utilize.
Solar energy is primary energy as a kind of energy of cleaning, is again regenerative resource, and the incomparable superiority of fossil energy is arranged.Show that through measuring and calculating the sun does not have to discharge 391 * 10 second 21The energy of kW, though and the energy that is radiated earth surface have only it 1/2200000000th, also be equivalent to 80,000 times of whole world generation current total amount.Therefore solar energy resources is very abundant, be the most noticeable in the regenerative resource, developmental research is maximum, most widely used clean energy resource.At present, the solar energy utilization mainly is a solar thermal utilization, as solar water heater etc., and solar photovoltaic utilization, as solar cell etc., considers that from use cost and widespread popularity the solar energy heat utilization is more general, and solar water heater has entered huge numbers of families now.But, cause a large amount of energy wastes because the supply and demand of solar energy quantitatively with on the time can not mate and coordinate well.As daytime the solar energy surplus cause solar energy to waste, and night and overcast and rainy solar energy are not enough.And in solar water heater, water heat accumulation energy storage density is low, volume is big, and accumulation of energy efficient is poor.
In addition, a key project of China's energy construction-" West-east Gas is implemented at present, and it makes the energy resource structure from Xinjiang to gas transmission cities and towns along the line, Shanghai that great change take place in the coming years.
Development natural gas gas air conditioner not only improves environment, and can optimize the national energy investment.Along with the raising of people's living standard, the air-conditioning demand will further increase.This makes large-scale upgrading urban and rural power grids, a large amount of new power plant construction inevitable.Every kilowatt about 6000 yuan of China's firepower electrical plant construction investments, be equipped with the desulfurization facility and need increase 900 yuan every kilowatt again, power grid construction is every kilowatt about 2000 yuan in addition, needs every kilowatt nearly 9000 yuan of electric generation investments altogether, and nuclear power, construction of hydropower facilities expense than thermoelectricity taller 3~6 times.If increase by 1,500 ten thousand kilowatts of air conditioner loads, country needs 1,350 hundred million yuan of expenditure power construction funds, if huge construction cost is shared on one's body the user, buys domestic air conditioning or central air conditioning equipment itself is also Duoed 2~10 times than the user.At present, though this investment is not temporarily spread out on one's body the air conditioner user, cause very big investment burden to State Grid's construction.
The development of natural gas gas air conditioner is the important channel of the energy " dsm ".Gas peak valley and electric power peak valley just in time have great complementarity.Analyzing combustion gas peak-valley difference reason finds: the gas purposes is single, is mainly used in heating and heating power in the past, seldom is used for refrigeration.If widely popularize the natural gas gas air conditioner,, reach the effect that combustion gas and electric power enterprise benefit promote each other with the serious seasonal uneven contradiction of gas and electric power peak valley is readily solved.
The energy of production and supply cleaning is set up stable clean energy resource terminal consumption market, realizes sustainable development, becomes to ensure the urgent task of human flourishing and Earth Health.Thereby people begin conscientiously to study distributing rationally of the energy now, comprehensively weigh coal, oil, natural gas, nuclear energy, water energy, solar energy and energy efficiency and security that can detectable new forms of energy.The Chinese government recognizes the key of problem-develop energetically natural gas observantly.Since 2000, " West-east Gas, " Liquefied Natural Gas Import ", " the coastal waters natural gas lands ", " cbm development " equal energy source utilization strategy have been formulated.
In sum, the air-conditioning that the exploitation solar-natural gas is united driving meets the national energy and environmental protection policy, and country encourages the user to use solar energy and natural gas, does not have the policy restriction.
One of improving of people's living standard pursues or sign is the remarkable improvement of living conditions, and this is comfortable temperature, damp condition and hot water supply easily to the specific requirement of indoor environment wherein.
Indoor temperature is regulated the steam compressing air conditioner machine that generally adopts at present, it with electric power as driving energy, the atmospheric ozone layer that traditional working medium freon CFC that uses in the machine and HCFC depend on for existence to global biosphere has great destruction, is being faced with replaced circumstances; Yet there are problems in some alternative working medium that go out newly developed, just have the potential danger that forms acid rain as the HFC134a that has been widely used.In addition, the work of steam compressing air conditioner machine also can be subjected to the restriction of environment temperature, promptly when temperature when lower (as below-5 ℃), the situation of (as evaporimeter frosting, heating efficiency is low, even can't start etc.) can occur normally moving.
Three, summary of the invention
The purpose of this invention is to provide a kind of solar-natural gas and unite the high efficiency energy saving air conditioner of driving.As driving energy, the working medium of use is lithium bromide water solution to this air-conditioning, can not damage atmospheric ozone layer with thermal source; And when temperature is low, still can normally move; Because the moving component that uses seldom, air-conditioning does not almost have noise when operation.
The objective of the invention is to be achieved through the following technical solutions:
A kind of solar-natural gas is united the energy-saving type air conditioner of driving, comprises outdoor unit and indoor units, and indoor units is made of blower fan and heat exchange coil; It is characterized in that: outdoor unit comprises high pressure generator, low pressure generator, air-cooled condenser, throttling arrangement, evaporimeter, air-cooled absorber, solution pump, heat exchanger, refrigeration control and regulation valve, heats control and regulation valve, solar thermal collector, solar energy heat-storage device and gas heater; Lithium bromide working medium solution is all arranged in high pressure generator, low pressure generator and air-cooled absorber, refrigerant medium is all arranged in air-cooled condenser and evaporimeter; In gas heater, be provided with neat gas burner, in high pressure generator, be provided with heater, in low pressure generator, evaporimeter and solar energy heat-storage device, be equipped with heat exchanger coil; Solar thermal collector is connected with the solar energy heat-storage device by circulating pump, and the heat exchanger coil in the solar energy heat-storage device is connected with heater two ends in the high pressure generator by gas heater and circulating pump; The outlet of high pressure generator is connected with heat exchanger coil in the low pressure generator by refrigeration control and regulation valve, and is connected with evaporimeter via behind air-cooled condenser and the throttling arrangement, and the outlet of high pressure generator controls to adjust valve and is connected with evaporimeter by heating; Heat exchanger coil in the evaporimeter is connected with indoor units by circulating pump; And evaporimeter is connected with air-cooled absorber by the control and regulation valve; The import of air-cooled absorber is connected with low pressure generator, and outlet is connected with high pressure generator with heat exchanger by solution pump; High pressure generator is connected with low pressure generator by heat exchanger.
Among the present invention, indoor units can many as required group parallel connections.
Be reasonable energy utilization, the present invention can be the accumulating type air-conditioning, and evaporimeter is connected with energy storage equipment; The left side import of energy storage equipment is connected with the outlet of evaporimeter by control valve, and the left side outlet is connected with the import of evaporimeter by control valve; The right side outlet of energy storage equipment is connected with the import of indoor units with control valve by the accumulation of energy circulating pump, and the right side import is connected with the outlet of indoor units by control valve.
For conveniently utilizing hot water, the present invention is provided with the thermal water utilization device, described high pressure generator is connected with water heater by the water heater control valve, and refrigerant medium is housed in water heater, and cooling water inlet is connected with hot water outlet after being arranged on the heat exchanger coil in the water heater.
The refrigerating capacity scope of air conditioner of the present invention is 5-40kW, and the heating capacity scope is 5-40kW, and the hot water amount can regulate as required.
The air-conditioning that described solar-natural gas is united driving is taked preferentially to utilize solar energy, insufficient section to be replenished by natural gas and is supplied with, and has environmental protection, energy-conservation, safe characteristics.
The air-conditioning that described solar-natural gas is united driving will freeze, heat and supply life hot-water integration, compact conformation, unit miniaturization.
Described solar-natural gas is united condenser, absorber in the air-conditioning of driving and is adopted air-cooledly, has saved cooling water recirculation system so that enter family and in, Minor Construction uses.
Described solar thermal collector adopts heat pipe collector or vacuum tube collector.Fill heat-storage medium water in the described solar energy heat-storage device.
Described air-cooled condenser and air-cooled absorber are pipe type, corrugated tube type or stacked.
Described throttling arrangement adopts " U " shape pipe or capillary.
Be filled with Energy storage ball or energy storage board in the described energy storage equipment.Be packaged with energy storage materials of phase change in described Energy storage ball or the energy storage board.
Described systematic working medium is a lithium-bromide solution, and the concentration of weak solution is that the concentration of 58%-60%, concentrated solution is 62%-64%.
Described heat exchanger coil adopts spiral coil or serpentine coil or " U " shape coil pipe, light pipe or screwed pipe or finned tube, copper tube or steel pipe.
Described heat exchanger can recover energy, and improves the thermodynamic coefficient of whole system.
The present invention has overcome the deficiency of existing air-conditioning, provides a kind of solar-natural gas to unite the air-conditioning of driving.This air-conditioning will freeze, heat and supply life hot-water integration, compact conformation, unit miniaturization; Condenser in the unit, absorber adopt air-cooled, have saved cooling water recirculation system, so that enter family and the use of medium and small building; When heat supply, solved difficult problems such as the defrosting of existing compression heat pump air conditioner is frequent, heating effect is not good, be lower than at outdoor environment temperature under-30 ℃ the situation, this air conditioner still can be normally to indoor heating, and heat supply temperature is even.Because this air-conditioning system adopts solar-natural gas to unite driving, its coefficient of performance can reach more than 1.5, has reduced energy resource consumption, has made full use of regenerative resource.In addition, it also has environmental protection, characteristics such as energy-conservation, safe.
The present invention compared with prior art, its remarkable advantage is:
(1) adopt the solar-natural gas energy to unite driving, environmental protection, energy-conservation, safety reduce energy resource consumption, make full use of regenerative resource, the balancing electric power load.
(2) will freeze, heat and supply life hot-water integration, compact conformation, unit miniaturization.
(3) condenser in the unit, absorber adopt air-cooledly, have saved cooling water recirculation system so that enter family and in, Minor Construction uses.
(4) air-conditioning system is equipped with energy storage equipment and solar energy heat-storage device, and the supply and demand of solar energy quantitatively with on the time can be mated and coordinate well.Make full use of solar energy daytime, night and the overcast and rainy energy storage equipment cooling that utilizes.
(4) solve difficult problems such as existing compression heat pump type air conditioner defrosting is frequent, heating effect difference, be lower than at outdoor environment temperature under-30 ℃ the situation, still can be normally to indoor heating.
Four, description of drawings
Accompanying drawing is a structural representation of the present invention.
Description of symbols in the accompanying drawing
The air-cooled absorber 7-of 2-low pressure generator 3-air-cooled condenser 4-throttling arrangement 5-evaporimeter 6-solution pump 8-heat exchanger 9-heater 10-water heater 11 takes place in the 1-high pressure, 12,13,14-control and regulation valve 16-heat exchanger coil 18-circulating pump 19- control valve 20a, 20b, 21a, 21b-control valve 22-energy storage equipment 23-circulating pump 24-Energy storage ball (plate) 25-solar thermal collector 26-solar energy heat-storage device 27-heat exchanger coil 28-solar energy circulating pump 29-burner 30-natural gas heating 31-natural gas circulating pump
Five, the specific embodiment
A kind of solar-natural gas of the present invention is united the air-conditioning of driving, comprises outdoor unit and indoor units, and indoor units is made of blower fan and heat exchange coil; In the outdoor unit, lithium bromide working medium solution is arranged all in high pressure generator, low pressure generator and air-cooled absorber, in air-cooled condenser 3 and evaporimeter 5, refrigerant medium is arranged all; In gas heater 30, be provided with neat gas burner 29, in high pressure generator 1, be provided with heater 9, in low pressure generator 2, evaporimeter 5 and solar energy heat-storage device 26, be provided with heat exchanger coil 16; Solar thermal collector 25 is connected with solar energy heat-storage device 26 by circulating pump 28, and the heat exchanger coils in the solar energy heat-storage device 26 pass through gas heater 30 and circulating pump 31 and high pressure generator 1 interior heater 9 two ends and are connected; The outlet of high pressure generator 1 is connected by refrigeration control and regulation valve 13 and low pressure generator 2 interior heat exchanger coils 16, and be connected with evaporimeter 5 via air-cooled condenser 3 and throttling arrangement 4 backs, the outlet of high pressure generator 1 controls to adjust valve 12 and is connected with evaporimeter 5 by heating; Heat exchanger coil 16 in the evaporimeter 5 is connected with indoor units by circulating pump 18; And evaporimeter 5 is connected with air-cooled absorber 6 by control and regulation valve 14; The import of air-cooled absorber 6 is connected with low pressure generator 2, and outlet is connected with high pressure generator 1 with heat exchanger 8 by solution pump 7; High pressure generator 1 is connected with low pressure generator 2 by heat exchanger 8.
Evaporimeter 5 also is connected with energy storage equipment 22; The left side import of energy storage equipment 22 is connected with the outlet of evaporimeter 5 by control valve 20a, and the left side outlet is connected with the import of evaporimeter 5 by control valve 20b; The right side outlet of energy storage equipment 22 is connected with the import of indoor units with control valve 21a by accumulation of energy circulating pump 23, and the right side import is connected with the outlet of indoor units by control valve 21b.
High pressure generator 1 is connected with water heater 10 by water heater control valve 11, in water heater 10 refrigerant medium is housed, and cooling water inlet is connected with hot water outlet by heat exchanger coil 15 backs that are arranged in the water heater 10.
Its operation principle is described below, and sees accompanying drawing:
Omitted the blower fan of electronic control part and indoor units and outdoor unit in the accompanying drawing, indoor units can as required be organized in parallel more, and the one group of indoor units of only drawing among the figure is illustrated.
When carrying out system (holding) cold circulation time, control and regulation valve 12 is opened, heated to refrigeration control and regulation valve 13, control and regulation valve 14 cuts out, heater 9 heating high-pressure generators 1, the heat energy of heater 9 is provided by solar energy heat-storage device 26 and gas heater 30, circulatory mediator in the heater 9 is heated to 60-80 ℃, is heated to about 150 ℃ by gas heater 30 by solar energy heat-storage device 26 earlier, and the heat energy in the solar energy heat-storage device 26 is supplied with by solar thermal collector 25.Carry through over-heat-exchanger 8 by solution pump 7 from the bromize lithium dilute solution that air-cooled absorber 6 comes out, then entering high pressure generator 1 is heated by heater 9, produce the part refrigerant vapour, bromizate the raising of lithium solution concentration and leave high pressure generator 1, after heat exchanger 8 coolings, enter the refrigerant vapour heating that low pressure generator 2 is introduced from high pressure generator 1, lithium-bromide solution concentration improves once more, producing new refrigerant vapour again delivers in the air-cooled condenser 3 cooling and is condensed into water as refrigerant, mix with come out in low pressure generator 2 water as refrigerant of cooling and the cold condenser 3 of the laggard inlet air of condensation of high pressure generator 1, after throttling arrangement 4 step-downs, enter evaporimeter 5 sweat coolings then, become refrigerant vapour again, the bromize lithium concentrated solution of being sent here by low pressure generator 2 in the air-cooled absorber 6 absorbs and becomes weak solution, so moves in circles and finishes the cold process of system (holding).When system (holding) was cold, the water as refrigerant in the evaporimeter 5 absorbed in the heat exchanger coil 17
Chilled water heat and become refrigerant vapour, therefore the chilled water temperature in the heat exchanger coil 17 descend.The air-cooled condenser 3 and the air-cooled absorber 6 of outdoor unit dispel the heat to environment.When only to the indoor units cooling, control valve 20a, 20b, 21a, 21b close, and the chilled water in the heat exchanger coil 17 provides cold by circulating pump 18 to indoor units; When filling when cold simultaneously to indoor units cooling and energy storage equipment 22, control valve 20a, 20b open, control valve 21a, 21b close, chilled water in the heat exchanger coil 17 fills cold to indoor units cooling and energy storage equipment 22 simultaneously by circulating pump 18, Energy storage ball (plate) 24 in the energy storage equipment 22 stores cold, and its interior energy-accumulation material solidified phase transformation when Energy storage ball (plate) 24 storages were cold; When only by energy storage equipment 22 during to the indoor units cooling, heater 9 quits work, control valve 20a, 20b close, control valve 21a, 21b open, chilled waters in the energy storage equipment 22 are put cold to indoor units by circulating pump 23, phase transformation takes place to melt energy-accumulation material that Energy storage ball (plate) 24 is put when cold in it.
When carrying out system (holding) thermal cycle, heat control and regulation valve 12,14 unlatchings of control and regulation valve, refrigeration control and regulation valve 13 cuts out, condensation heat release on the heat exchanger coil 17 of refrigerant vapour evaporimeter 5 in that flows out from high pressure generator 1, and heat exchanger coil 17 interior hot water are heated and heat up.The water as refrigerant of condensation flows into air-cooled absorber 6 and bromizates the lithium concentrated solution and be diluted to weak solution in evaporimeter 5, and the bromize lithium dilute solution in the air-cooled absorber 6 is carried through over-heat-exchanger 8 by solution pump 7, then enter high pressure generator 1 and heated, produce refrigerant vapour by heater 9.The heat energy of heater 9 is provided by solar energy heat-storage device 26 and gas heater 30, circulatory mediator in the heater 9 is heated to 60-80 ℃, is heated to about 150 ℃ by gas heater 30 by solar energy heat-storage device 26 earlier, and the heat energy in the solar energy heat-storage device 26 is supplied with by solar thermal collector 25.When system (holding) was hot, the heat medium water in the heat exchanger coil 17 heated up because of the refrigerant vapour heat that absorbs in the evaporimeter 5.When only to the indoor units heat supply, control valve 20a, 20b, 21a, 21b close, and the heat medium water in the heat exchanger coil 17 provides heat by circulating pump 18 to indoor units; When simultaneously to indoor units heat supply and energy storage equipment 22 accumulation of heats, control valve 20a, 20b open, control valve 21a, 21b close, heat medium water in the heat exchanger coil 17 passes through circulating pump 18 simultaneously to indoor units heat supply and energy storage equipment 22 accumulation of heats, Energy storage ball (plate) 24 store heat in the energy storage equipment 22, its interior energy-accumulation material stores sensible heat, does not solidify phase transformation during Energy storage ball (plate) 24 accumulation of heats; When only by energy storage equipment 22 during to the indoor units heat supply, heater 9 quits work, control valve 20a, 20b close, control valve 21a, 21b open, to the indoor units heat release, emit sensible heat, do not melt phase transformation during Energy storage ball (plate) 24 heat releases by its interior energy-accumulation material by circulating pump 23 for heat medium water in the energy storage equipment 22.
Use hot water, this unit to be provided with water heater 10 closed circuits in order to supply life.When hot water was used in the needs life, control and regulation valve 11 was opened.This unit can be produced life simultaneously with hot water with system (holding) is cold or make (holding) heat, the refrigerant vapour that high pressure generator 1 flows out is divided into two-way: the one tunnel is used for cold or system (holding) heat of system (holding), and its course of work is cold with above-mentioned system (holding) or system (holding) thermal cycle is identical; Another road is used to produce life and uses hot water, condensation heat release from the heat exchanger coil 15 of refrigerant vapour water heater 10 of high pressure generator 1, and the hot water in the heat exchanger coil 15 is heated and heats up, so just can be to indoor supply life hot water.Condensed water as refrigerant relies on potential difference to return high pressure generator 1 automatically, keeps constant solution concentration in the high pressure generator 1.

Claims (7)

1, a kind of solar-natural gas is united the energy-saving type air conditioner of driving, comprises outdoor unit and indoor units, and indoor units is made of blower fan and heat exchange coil; It is characterized in that: outdoor unit comprises high pressure generator (1), low pressure generator (2), air-cooled condenser (3), throttling arrangement (4), evaporimeter (5), air-cooled absorber (6), solution pump (7), heat exchanger (8), refrigeration control and regulation valve (13), heats control and regulation valve (12), solar thermal collector (25), solar energy heat-storage device (26) and gas heater (30); In high pressure generator (1), low pressure generator (2) and air-cooled absorber (6), lithium bromide working medium solution is arranged all, in air-cooled condenser (3) and evaporimeter (5), cryogen is arranged all; In gas heater (30), be provided with neat gas burner (29), in high pressure generator (1), be provided with heater (9), in low pressure generator (2), evaporimeter (5) and solar energy heat-storage device (26), be provided with heat exchanger coil (16); Solar thermal collector (25) is connected with solar energy heat-storage device (26) by solar energy circulating pump (28), and the heat exchanger coil (16) in the solar energy heat-storage device (26) is connected by the two ends of the interior heater (9) of gas heater (30) and natural gas circulating pump (31) and high pressure generator (1); The outlet of high pressure generator (1) is connected by the interior heat exchanger coil (16) of refrigeration control and regulation valves (13) and low pressure generator (2), and be connected with evaporimeter (5) via air-cooled condenser (3) and throttling arrangement (4) back, the outlet of high pressure generator (1) controls to adjust valves (12) and is connected with evaporimeter (5) by heating; Heat exchanger coil (16) in the evaporimeter (5) is connected with indoor units by circulating pump (18); And evaporimeter (5) is connected with air-cooled absorber (6) by control and regulation valves (14); The import of air-cooled absorber (6) is connected with low pressure generator (2), and outlet is connected with high pressure generator (1) with heat exchanger (8) by solution pump (7); High pressure generator (1) is connected with low pressure generator (2) by heat exchanger (8); Evaporimeter (5) is connected with energy storage equipment (22); The left side import of energy storage equipment (22) is connected with the outlet of evaporimeter (5) by control valve (20a), and the left side outlet is connected with the import of evaporimeter (5) by control valve (20b); The right side outlet of energy storage equipment (22) is connected with the import of indoor units with control valve (21a) by accumulation of energy circulating pump (23), and the right side import is connected with the outlet of indoor units by control valve (21b).
2, solar-natural gas according to claim 1 is united the energy-saving type air conditioner of driving, it is characterized in that: described energy storage equipment is filled with Energy storage ball or energy storage board in (22).
3, solar-natural gas according to claim 2 is united the energy-saving type air conditioner of driving, it is characterized in that: be packaged with energy storage materials of phase change in described Energy storage ball or the energy storage board.
4, solar-natural gas according to claim 1 is united the energy-saving type air conditioner of driving, it is characterized in that: described high pressure generator (1) is connected with water heater (10) by water heater control valve (11), in water heater (10) refrigerant medium is housed, cooling water inlet is connected with hot water outlet by heat exchanger coil (15) back that is arranged in the water heater (10).
5, solar-natural gas according to claim 1 is united the energy-saving type air conditioner of driving, it is characterized in that: described solar thermal collector (25) adopts heat pipe collector or vacuum tube collector.
6, solar-natural gas according to claim 1 is united the energy-saving type air conditioner of driving, it is characterized in that: described working medium is bromize lithium dilute solution or bromize lithium concentrated solution, and the concentration of weak solution is that the concentration of 58%-60%, concentrated solution is 62%-64%.
7, solar-natural gas according to claim 1 is united the energy-saving type air conditioner of driving, it is characterized in that: described heat exchanger coil (16) adopts spiral coil or serpentine coil or " U " shape coil pipe.
CNB2007100192567A 2007-01-09 2007-01-09 Solar-natural gas combined driven energy-saving air condioner Expired - Fee Related CN100427851C (en)

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CN102141320A (en) * 2011-04-28 2011-08-03 上海交通大学 Solar-driven two-stage air-cooled absorption air conditioner

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