CN103292513A - Solar energy driven single-effect and double-effect coupled lithium bromide refrigerator - Google Patents
Solar energy driven single-effect and double-effect coupled lithium bromide refrigerator Download PDFInfo
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- CN103292513A CN103292513A CN2013101615598A CN201310161559A CN103292513A CN 103292513 A CN103292513 A CN 103292513A CN 2013101615598 A CN2013101615598 A CN 2013101615598A CN 201310161559 A CN201310161559 A CN 201310161559A CN 103292513 A CN103292513 A CN 103292513A
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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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
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Abstract
The invention provides a solar energy driven single-effect and double-effect coupled lithium bromide refrigerator, which includes a solar intermediate temperature heat collector, a gas-fired boiler, a hot water storage tank, a heat collection circulating pump, a high temperature heat exchanger, a low temperature heat exchanger, a lithium bromide solution pump, an absorber, a refrigerant water circulating pump, an evaporator, a heat exchange end, an air conditioning room, an expansion valve, a cooling water circulating pump, a cooling tower, a condenser, a low pressure generator, a high pressure generator, a hot water circulating pump, a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a six valve, a seventh valve and an eighth valve. The refrigerator can efficiently utilize the solar energy via switching of the single effect and the double effects of the system according to the characteristics of the solar collector system, can reduce consumption of primary energy as compared with the conventional gas-fired lithium bromide refrigerator, and is environmentally friendly.
Description
Technical field
The present invention relates to solar energy utilization and air-conditioning technical field, be specially the single economic benefits and social benefits coupled mode of a kind of Driven by Solar Energy lithium bromide refrigerator.
Background technology
Solar energy is regenerative resource widely distributed, that use cleaning, is expected to more importantly effect of performance in future social energy resource structure.Wherein utilizing solar energy to carry out heat supply, heating and refrigeration is the important channel that realization scale, low cost are utilized solar energy.Particularly; in recent years along with the scale of solar energy heating and heating system is used; summer, the solar heat excess phenomenon was very outstanding; the various countries scholar can realize utilizing summer solar energy to carry out the effective ways of air conditioner refrigerating in positive searching; purpose is to improve the annual utilization ratio of solar thermal collector, can open up a brand-new technological approaches that utilizes solar energy to solve the air conditioner refrigerating demand on the other hand.The great advantage of solar airconditioning refrigeration is that it has matching in good season, and weather is more warm, when more needing to freeze, and the solar radiation condition is more good, and the refrigerating capacity of solar refrigeration system is also more big.
Because solar thermal collector is mainly used in hot-water heating system at present, usually heat-collecting temperature is below 90 ℃, therefore the priority application of solar airconditioning research in the past with the solar airconditioning technical elements of ordinary solar heat collector coupling, particularly the ripe relatively single-effective absorption refrigerating machine group of production technology is used more.But also there are some problems in the solar airconditioning of being combined with the low-temperature solar energy heat collection technology, and on the one hand because heat source temperature low (60-90 ℃), and the absorption of its coupling or absorption refrigeration unit generally freeze heating power COP between 0.4-0.7.In order to ensure the continuity problem of solar airconditioning, generally adopt combustion gas or oil burning boiler as auxiliary thermal source on the other hand.For the low solar air-conditioner system of solar energy fraction, tend to lose owing to heating power COP is low due advantage (system compares with conventional air-conditioning).Can select refrigeration heating power COP for use with suction-type lithium bromide air-conditioning coupling is 1.2 economic benefits and social benefits product, but it needs 150 ℃ thermal source, and conventional direct-fired lithiumbromide absorption refrigerating machine is exactly the suction-type lithium bromide dual-effect refrigeration machine that adopts fuel oil or gas fired-boiler to drive.If will adopt Driven by Solar Energy, then corresponding medium-temperature collectors need be mated in system.
In addition, for solar thermal collector, be subjected to the restriction of level of solar radiation, in the middle of one day, the heat collector to supply heat temperature is lower in the time of the morning and evening, reaches the highest after before midday.The solar air-conditioner system that medium-temperature collectors is driven, generally near noon, heat-collecting temperature could satisfy the dual-effect refrigeration service requirement, the morning and afternoon portion of time, only can satisfy single-action refrigerating operaton condition.Therefore, prolong solar airconditioning refrigeration system cooling time, best bet is the operational mode that adopts single-action/economic benefits and social benefits to automatically switch, according to solar heat collector to supply heat variations in temperature in a day, automatically between single-action and economic benefits and social benefits pattern, switch efficient to satisfy, long-time refrigeration demand.
Find that by the retrieval to the prior art document Chinese patent application publication No. is: CN101886854A, denomination of invention is: Singledouble effect absorptive refrigerating machine.Propose the refrigeration machine that a kind of single economic benefits and social benefits are switched, focused on setting forth the running ability of weak solution pump in the middle of how controlling according to the change of refrigeration load.On structure, it has additionally increased generator and the condenser that is used for the single-action operation on the basis of former direct combustion double-effect absorption refrigerating machine, and its generator that is used for the single-action operation needs other heat source water to supply.And when single-action moved, high-low pressure generator and the condenser of former direct-fired economic benefits and social benefits unit were not all worked, and the system unit utilization rate is low.
The Chinese patent application publication number is: CN101231043A, denomination of invention is: single and double effect absorption refrigerator and method of controlling operation thereof thereof.The single dual-effect refrigeration machine structure that proposes is similar to the Singledouble effect absorptive refrigerating machine among the CN10188854A, and being has equally increased the extra generator and the condenser that are used for the single-action operation.And the economic benefits and social benefits operation only depends on gas fired-boiler as thermal source, does not relate to the solar energy utilization, and primary energy consumption is big.
The Chinese patent application publication number is: CN101526283A, denomination of invention is: fume hot-water single-double effect compound type lithium bromide absorption type cold water, hot and cold water unit.Fume hot-water single-double effect compound type lithium bromide absorption type cold water, hot and cold water unit and the above-mentioned publication number that proposes is that the main distinction of CN101231043A and the disclosed technical scheme of CN101886854A is that it has only increased and is used for the hot water generator that single-action moves on former economic benefits and social benefits unit, and structure is above, and both are simple.What itself and the main distinction of the present invention were its economic benefits and social benefits operation thermal source employing is that other devices produce high-temperature flue gas, belong to the UTILIZATION OF VESIDUAL HEAT IN field, and the thermal source in economic benefits and social benefits when operation is provided by the solar energy medium-temperature collectors among the present invention, for new forms of energy and renewable resource utilize the field, and because the form difference of both generator thermals source, its version also will have significant difference.And it has additionally increased a solution pump when single-action moves, and realizes function and only depend on pipe valve to switch among the present invention.
Summary of the invention
The present invention is directed to above the problems of the prior art and deficiency, proposed the single economic benefits and social benefits coupled mode of a kind of Driven by Solar Energy lithium-bromide absorption-type refrigerating machine.By adding the single-action hot water heat exchanger in low pressure generator, the control of the line correlation valve opening and closing of going forward side by side is implemented in the switching of refrigeration unit single-action operating mode and economic benefits and social benefits operating mode under the situation of different water temperatures.Can take full advantage of the grade of the solar thermal collection system hot water of different periods, realize that single economic benefits and social benefits automatically switch, utilize solar refrigeration efficiently, the problem and the solar thermal collection system that solve solar energy system heat in summer surplus can provide the domestic hot-water simultaneously, also can be used for heating winter.Solar irradiation is not enough but adopt gas fired-boiler to drive the operation of dual-effect refrigeration operating mode when refrigeration demand is arranged.
The single economic benefits and social benefits coupled mode of Driven by Solar Energy provided by the invention lithium bromide refrigerator, comprise solar energy medium-temperature collectors 1, gas fired-boiler 3, heat storage water tank 6, thermal-arrest circulating pump 7, high-temperature heat exchanger 9, low temperature heat exchanger 10, lithium-bromide solution pump 13, absorber 14, water as refrigerant circulating pump 15, evaporimeter 16, heat exchange end 17, air-conditioned room 18, expansion valve 19, cooling water circulating pump 20, cooling tower 21, condenser 22, low pressure generator 23, high pressure generator 24, hot water circulating pump 26, first valve 2, second valve 4, the 3rd valve 5, the 4th valve 8, the 5th valve 11, the 6th valve 12, the 7th valve 25, the 8th valve 27, wherein: solar energy medium-temperature collectors 1 is connected to form the thermal-arrest loop with heat storage water tank 6 and thermal-arrest circulating pump 7; High pressure generator 24 connects low pressure generator 23, low pressure generator 23 connects condenser 22, condenser 22 connects evaporimeter 16 by expansion valve 19, evaporimeter 16 connects absorber 14, absorber 14 links to each other with low temperature heat exchanger 10 with high-temperature heat exchanger 9 respectively by lithium-bromide solution pump 13, high-temperature heat exchanger 9 links to each other with high pressure generator 24, and low temperature heat exchanger 10 links to each other with low pressure generator 23, to form single double-effect lithium bromide refrigeration machine; Cooling tower 21 is connected to form the cooling water loop with absorber 14 and condenser 22 respectively by cooling water circulating pump 20; Heat exchange end 17 places in the air-conditioned room 18, and heat exchange terminal 17 and evaporimeter 16 are connected to form terminal circulation loop; First valve (2) connects solar energy medium-temperature collectors 1 and heat storage water tank 6 respectively; Second valve 4 connects gas fired-boiler 3 and high pressure generator 24 respectively; The 3rd valve 5 connects gas fired-boiler 3 and high pressure generator 24 respectively; The 4th valve 8 connects heat storage water tank 6 and high pressure generator 24 respectively; The 5th valve 11 connects lithium-bromide solution pump 13 and high-temperature heat exchanger 9 respectively; The 6th valve 12 connects lithium-bromide solution pump 13 and low temperature heat exchanger 10 respectively; The 7th valve 25 connects hot water circulating pump 26 and low pressure generator 23 respectively; The 8th valve 27 connects high pressure generator 24 and solar energy medium-temperature collectors 1 respectively; Water as refrigerant circulating pump 15 two ends all connect evaporimeter 16, and lithium-bromide solution pump 13 two ends all connect absorber 14.
Preferably, be provided with two groups of heat exchangers in the described low pressure generator 23, one group is vapor heat exchanger 2307, another group is hot water heat exchanger 2304, wherein: vapor heat exchanger 2307 all places low pressure generator 23 with hot water heat exchanger 2304, vapor heat exchanger 2307 connects high pressure generator 24 and condenser 22 respectively, and hot water heat exchanger 2304 links to each other with heat storage water tank 6 by hot water circulating pump 26.
Preferably, have three kinds of different operational modes:
First pattern, the operation of the single economic benefits and social benefits coupled mode of Driven by Solar Energy lithium bromide refrigerator economic benefits and social benefits: the hot water that solar energy medium-temperature collectors 1 produces directly enters high pressure generator 24;
Second pattern, the single economic benefits and social benefits coupled mode of Driven by Solar Energy lithium bromide refrigerator single-action operation: the hot water that solar energy medium-temperature collectors 1 produces enters the hot water generator in the low pressure generator 23;
Three-mode, gas fired-boiler drive single economic benefits and social benefits coupled mode lithium bromide refrigerator economic benefits and social benefits operation: the hot water that gas fired-boiler 3 produces enters high pressure generator 24.
Preferably, select corresponding operational mode automatically according to solar energy medium-temperature collectors 1 outlet temperature, and the switch of the relevant water pump valve of control.
Preferably, the main thermal source of hot water conduct that utilizes solar energy medium-temperature collectors 1 to produce utilizes gas fired-boiler 3 as a supplement when radiation parameter is bad.
Compared with prior art, the present invention can utilize system's single-action and economic benefits and social benefits ground to switch according to the characteristics of solar thermal collection system, utilizes solar energy fully efficiently, reduces conventional gas driven lithium bromide refrigerator to the consumption of primary energy, environmental protection.
Description of drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is the schematic flow sheet of the single economic benefits and social benefits coupled mode of Driven by Solar Energy of the present invention lithium bromide refrigerator;
Fig. 2 is mesolow generator detail drawing of the present invention;
The control logic figure that Fig. 3 switches for single economic benefits and social benefits among the present invention.
The specific embodiment
The present invention is described in detail below in conjunction with specific embodiment.Following examples will help those skilled in the art further to understand the present invention, but not limit the present invention in any form.Should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
Below with reference to Fig. 1 and Fig. 2 embodiments of the invention are described.Fig. 1 is schematic flow sheet of the present invention, and the single economic benefits and social benefits coupled mode of described Driven by Solar Energy lithium bromide refrigerator comprises: solar energy medium-temperature collectors 1, gas fired-boiler 3, heat storage water tank 6, thermal-arrest circulating pump 7, high-temperature heat exchanger 9, low temperature heat exchanger 10, lithium-bromide solution pump 13, absorber 14, water as refrigerant circulating pump 15, evaporimeter 16, heat exchange end 17, air-conditioned room 18, expansion valve 19, cooling water circulating pump 20, cooling tower 21, condenser 22, low pressure generator 23, high pressure generator 24, hot water circulating pump 26, first valve 2, second valve 4, the 3rd valve 5, the 4th valve 8, the 5th valve 11, the 6th valve 12, the 7th valve 25, the 8th valve 27.Respectively the present invention is set forth by reference to the accompanying drawings with regard to various operational modes below.Fig. 2 shows weak solution mouth spray 2301, thermal source hot water inlet 2302, thermal source hot water outlet 2303, hot water heat exchanger 2304, concentrated solution outlet mouth 2305, high pressure generator steam (vapor) outlet 2306, vapor heat exchanger 2307, high pressure generator steam inlet 2308, steam outlet 2309.
1. drive refrigeration machine by solar energy, second valve 4, the 3rd valve 5 are in closed condition:
(1) solar energy medium-temperature collectors 1 outlet water temperature satisfies the economic benefits and social benefits operation: the 4th valve 8 is opened, and the 5th valve 11 is opened, and the 6th valve 12 is opened, and the 8th valve 27 is opened, and first valve 2 is closed, and the 7th valve 25 is closed.Solar energy medium-temperature collectors 1 outlet hot water enters high pressure generator 24, and lithium-bromide solution is heated the back and produces high-temperature vapor in the high pressure generator 24, and self concentration increases.The high-temperature vapor that is produced by high pressure generator 24 enters coupled low pressure generator 23 by pipeline, heats again to enter in the condenser 22 behind the lithium-bromide solution in the low pressure generator 23 to be condensed into aqueous water.The molten steam that is heated the back generation of lithium bromide in the low pressure generator 23 also enters in the condenser 22 and is condensed into aqueous water.Aqueous water in the condenser 22 is entering the lower evaporimeter of pressure 16 through after the throttling step-down of expansion valve 19, evaporation and absorption are from the heat of heat exchange end 17 in the air-conditioned room 18, reduce the temperature of its medium, realize continuous cooling by water as refrigerant circulating pump 15.Low-pressure water steam in evaporimeter 16 after the evaporation enters coupled absorber 14, absorbed by the bromize lithium concentrated solution from high pressure generator 24 and low pressure generator 23, make the concentrated solution dilution that enters in the absorber 14 be weak solution, and be sent to high-temperature heat exchanger 9 and low temperature heat exchanger 10 by lithium-bromide solution pump 13.Lithium-bromide solution in the high pressure generator 24 discharges behind the steam self concentration and increases, and enters high-temperature heat exchanger 9 by pipeline, with finish heat exchange from the weak solution in the absorber 14 after enter absorber 14.Weak solution in the absorber 14 enters high pressure generator 24 through behind the high-temperature heat exchanger 9, continues generating process.Similarly, the lithium-bromide solution in the low pressure generator 23 discharges behind the steam self concentration and increases, and enters low temperature heat exchanger 10 by pipeline, with finish heat exchange from the weak solution in the absorber 14 after enter absorber 14.Weak solution in the absorber 14 enters low pressure generator 23 through behind the low temperature heat exchanger 10, continues generating process.The hot water that comes out from high pressure generator 24 enters heat storage water tank 6.Thermal-arrest circulating pump 7 is sent the water in the heat storage water tank 6 into heating again in the solar energy medium-temperature collectors 1, finishes the thermal-arrest circulation.Cooling water circulating pump 20 is delivered to the cooling water in the cooling tower 21 and is entered cooling tower 21 evaporative coolings again after finishing heat exchange in absorber 14 and the condenser 22, finishes the cooling water circulation.
(2) solar energy medium-temperature collectors 1 outlet water temperature satisfies the single-action operation: first valve 2 is opened, and the 6th valve 12 is opened, and the 7th valve 25 is opened, and the 4th valve 8 is closed, and the 5th valve 11 is closed, and the 8th valve 27 is closed.Solar energy medium-temperature collectors 1 outlet hot water enters heat storage water tank 6.By hot water circulating pump 26 hot water in the heat storage water tank 6 is delivered in the low pressure generator 23, heated wherein lithium-bromide solution, return by the road in the heat storage water tank 6 subsequently.The steam that produces after lithium-bromide solution in the low pressure generator 23 is heated enters in the condenser 22 and is condensed into aqueous water.Aqueous water in the condenser 22 is entering the lower evaporimeter of pressure 16 through after the throttling step-down of expansion valve 19, evaporation and absorption are from the heat of heat exchange end 17 in the air-conditioned room 18, reduce the temperature of its medium, realize continuous cooling by water as refrigerant circulating pump 15.Low-pressure water steam in evaporimeter 16 after the evaporation enters coupled absorber 14, absorbed by the bromize lithium concentrated solution from low pressure generator 23, make to enter in the absorber 14 the concentrated solution dilution and be weak solution, and be sent to low temperature heat exchanger 10 by lithium-bromide solution pump 13.Lithium-bromide solution in the low pressure generator 23 discharges behind the steam self concentration and increases, and enters low temperature heat exchanger 10 by pipeline, with finish heat exchange from the weak solution in the absorber 14 after enter absorber 14.Weak solution in the absorber 14 enters low pressure generator 23 through behind the low temperature heat exchanger 10, continues generating process.Thermal-arrest circulating pump 7 is sent the water in the heat storage water tank 6 into heating again in the solar energy medium-temperature collectors 1, finishes the thermal-arrest circulation.Cooling water circulating pump 20 is delivered to the cooling water in the cooling tower 21 and is entered cooling tower evaporative cooling again after finishing heat exchange in absorber 14 and the condenser 22, finishes the cooling water circulation.
2. when solar radiation is not enough to drive refrigeration machine, driven by gas fired-boiler 3: second valve 4 is opened, and the 3rd valve 5 is opened, and the 4th valve 8 is closed, and the 7th valve 25 is closed, and the 8th valve 27 is closed.The high-temperature-hot-water that is produced by gas fired-boiler 3 directly enters high pressure generator 24 and carries out the dual-effect refrigeration process, and the situation when miscellaneous part ruuning situation is moved with the Driven by Solar Energy economic benefits and social benefits is identical, and thermal source switches to boiler.The solar energy heating circulation can move the supply domestic hot-water as usual.This pattern is only as at overcast and rainy solar irradiation deficiency or the auxiliary mode at night.
More than specific embodiments of the invention are described.It will be appreciated that the present invention is not limited to above-mentioned specific implementations, those skilled in the art can make various distortion or modification within the scope of the claims, and this does not influence flesh and blood of the present invention.
Claims (5)
1. the single economic benefits and social benefits coupled mode of Driven by Solar Energy lithium bromide refrigerator, it is characterized in that, comprise solar energy medium-temperature collectors (1), gas fired-boiler (3), heat storage water tank (6), thermal-arrest circulating pump (7), high-temperature heat exchanger (9), low temperature heat exchanger (10), lithium-bromide solution pump (13), absorber (14), water as refrigerant circulating pump (15), evaporimeter (16), heat exchange end (17), air-conditioned room (18), expansion valve (19), cooling water circulating pump (20), cooling tower (21), condenser (22), low pressure generator (23), high pressure generator (24), hot water circulating pump (26), first valve (2), second valve (4), the 3rd valve (5), the 4th valve (8), the 5th valve (11), the 6th valve (12), the 7th valve (25), the 8th valve (27), wherein: solar energy medium-temperature collectors (1) is connected to form the thermal-arrest loop with heat storage water tank (6) and thermal-arrest circulating pump (7); High pressure generator (24) connects low pressure generator (23), low pressure generator (23) connects condenser (22), condenser (22) connects evaporimeter (16) by expansion valve (19), evaporimeter (16) connects absorber (14), absorber (14) links to each other with low temperature heat exchanger (10) with high-temperature heat exchanger (9) respectively by lithium-bromide solution pump (13), high-temperature heat exchanger (9) links to each other with high pressure generator (24), low temperature heat exchanger (10) links to each other with low pressure generator (23), to form single double-effect lithium bromide refrigeration machine; Cooling tower (21) is connected to form the cooling water loop with absorber (14) and condenser (22) respectively by cooling water circulating pump (20); Heat exchange end (17) places in the air-conditioned room (18), and heat exchange end (17) is connected to form terminal circulation loop with evaporimeter (16); First valve (2) connects solar energy medium-temperature collectors (1) and heat storage water tank (6) respectively; Second valve (4) connects gas fired-boiler (3) and high pressure generator (24) respectively; The 3rd valve (5) connects gas fired-boiler (3) and high pressure generator (24) respectively; The 4th valve (8) connects heat storage water tank (6) and high pressure generator (24) respectively; The 5th valve (11) connects lithium-bromide solution pump (13) and high-temperature heat exchanger (9) respectively; The 6th valve (12) connects lithium-bromide solution pump (13) and low temperature heat exchanger (10) respectively; The 7th valve (25) connects hot water circulating pump (26) and low pressure generator (23) respectively; The 8th valve (27) connects high pressure generator (24) and solar energy medium-temperature collectors (1) respectively; Water as refrigerant circulating pump (15) two ends all connect evaporimeter (16), and lithium-bromide solution pump (13) two ends all connect absorber (14).
2. the single economic benefits and social benefits coupled mode of Driven by Solar Energy according to claim 1 lithium bromide refrigerator, it is characterized in that, be provided with two groups of heat exchangers in the described low pressure generator (23), one group is vapor heat exchanger (2307), another group is hot water heat exchanger (2304), wherein: vapor heat exchanger (2307) all places low pressure generator (23) with hot water heat exchanger (2304), vapor heat exchanger (2307) connects high pressure generator (24) and condenser (22) respectively, and hot water heat exchanger (2304) links to each other with heat storage water tank (6) by hot water circulating pump (26).
3. the single economic benefits and social benefits coupled mode of Driven by Solar Energy according to claim 1 lithium bromide refrigerator is characterized in that having three kinds of different operational modes:
First pattern, the operation of the single economic benefits and social benefits coupled mode of Driven by Solar Energy lithium bromide refrigerator economic benefits and social benefits: the hot water that solar energy medium-temperature collectors (1) produces directly enters high pressure generator (24);
Second pattern, the single economic benefits and social benefits coupled mode of Driven by Solar Energy lithium bromide refrigerator single-action operation: the hot water that solar energy medium-temperature collectors (1) produces enters the hot water generator in the low pressure generator (23);
Three-mode, gas fired-boiler drive single economic benefits and social benefits coupled mode lithium bromide refrigerator economic benefits and social benefits operation: the hot water that gas fired-boiler (3) produces enters high pressure generator (24).
4. the single economic benefits and social benefits coupled mode of Driven by Solar Energy according to claim 3 lithium bromide refrigerator is characterized in that, selects corresponding operational mode automatically according to solar energy medium-temperature collectors (1) outlet temperature, and the switch of the relevant water pump valve of control.
5. the single economic benefits and social benefits coupled mode of Driven by Solar Energy according to claim 1 lithium bromide refrigerator is characterized in that, the main thermal source of hot water conduct that utilizes solar energy medium-temperature collectors (1) to produce utilizes gas fired-boiler (3) as a supplement when radiation parameter is bad.
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| CN105605823A (en) * | 2016-02-26 | 2016-05-25 | 中国人民解放军总后勤部建筑工程研究所 | Double-effect waste heat complementary combustion type lithium bromide absorption refrigerator |
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| CN106524575A (en) * | 2016-11-15 | 2017-03-22 | 东南大学 | Solar double-effect refrigerating and water heating combined system |
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| CN110567186A (en) * | 2019-09-17 | 2019-12-13 | 天津大学 | solar energy integration comprehensive utilization system |
| CN113899109A (en) * | 2021-11-16 | 2022-01-07 | 南京索乐优节能科技有限公司 | Efficient integrated system for medium-temperature heating and sky radiation refrigeration by utilizing solar radiation |
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