CN217178931U - Solar thermal coupling injection-adsorption type refrigerating system - Google Patents
Solar thermal coupling injection-adsorption type refrigerating system Download PDFInfo
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- CN217178931U CN217178931U CN202220004641.4U CN202220004641U CN217178931U CN 217178931 U CN217178931 U CN 217178931U CN 202220004641 U CN202220004641 U CN 202220004641U CN 217178931 U CN217178931 U CN 217178931U
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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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- 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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Abstract
This patent proposes a solar thermal coupling injection-absorption formula refrigerating system, and entire system is including three modules, is respectively: the solar thermal coupling module, the injection type refrigeration module and the adsorption type refrigeration module. The solar thermal coupling module comprises a solar thermal photovoltaic integrated device, a storage battery, an electric auxiliary heat device, a water tank, a circulating water pump, a current stabilizer and a valve; the jet type refrigeration module mainly comprises a generator, an evaporator, a condenser, an ejector, a throttle valve and a booster water pump; the adsorption type refrigeration module comprises an adsorption plate, an electric auxiliary heating device, a condenser, a liquid storage device, a throttle valve and an evaporator. The inlet of the generator is connected with the water outlet of the solar photo-thermal photovoltaic integrated device through a pipeline, the adsorption bed is connected with the jet-type refrigeration condenser for heat exchange, and refrigerant vapor desorbed from the adsorption bed enters the condenser through the pipeline to exchange heat with the outside and then is stored in the liquid storage device for use at night. This patent combines solar energy injection formula and solar energy absorption formula refrigeration, and simple structure has reduced the heat of wasting because the condensation, has improved energy utilization and has rateed, and can realize incessant refrigeration round the clock.
Description
Technical Field
The patent relates to the field of renewable energy development and utilization, and particularly relates to a solar thermal coupling injection-adsorption refrigeration system by utilizing mutual combination of solar injection refrigeration and solar adsorption refrigeration.
Background
With the increasing demand of people on indoor thermal comfort environment, the demand of building air conditioners is on the trend of rising year by year, and the traditional air compression type air conditioners need to consume a large amount of high-grade energy.
The traditional jet refrigerator mainly comprises a generator (heat accumulator), an evaporator, a condenser, a throttle valve, an ejector and a circulating pump. The steam heated in the generator enters the ejector, high-speed airflow is sprayed out through the nozzle, vacuum is formed near the nozzle, low-pressure steam of a refrigerant evaporated due to heat absorption in the evaporator is sucked, the low-pressure steam is mixed with the high-speed sprayed airflow and then enters the condenser to be condensed into liquid, part of the refrigerant condensate enters the evaporator through the throttle valve, the refrigerant condensate is gasified after absorbing heat, the temperature in the evaporator is reduced to achieve the purpose of refrigeration, and the other part of the refrigerant condensate enters the generator after being pressurized by the circulating pump to generate high-temperature high-pressure steam and then enters the nozzle of the ejector to carry out next circulation.
In the jet refrigeration system, a circulating pump is the only moving part, the system runs stably, but the performance coefficient is low, a large amount of heat is wasted by condenser condensation, and refrigeration cannot be carried out when sunlight does not exist at night.
The adsorption refrigeration is to utilize the adsorption of the adsorbent to the refrigerant to refrigerate, the specific refrigerant is absorbed by the adsorbent in the adsorption bed to form a mixture, the adsorption bed is heated by solar energy, the refrigerant is desorbed from the adsorption bed at high temperature to form single refrigerant gas, the refrigerant gas enters a condenser to be condensed and then enters a liquid storage device to be stored for later use, the refrigerant liquid passes through a throttle valve and then enters an evaporator to be evaporated and refrigerated at night without solar radiation, the refrigerant which generates the refrigeration effect enters the adsorption bed, and then is adsorbed by the adsorbent in a low-temperature state to form a refrigerant-adsorbent mixture, so that the circulation is completed.
The solar adsorption refrigeration has the advantages of small investment, low operating cost, low noise and no pollution to the environment, but can only operate at night due to long cycle period, and has large limitation. Although there is a continuous solar adsorption refrigeration system (which uses a plurality of adsorption beds to realize alternate continuous refrigeration by switching the operating state of a heat collector), there is a problem that the refrigeration power per unit amount of adsorbent is small, so that the refrigerant volume is large, and if a plurality of adsorption beds are used, the system volume is large.
Disclosure of Invention
According to the defects in the prior art, the solar thermal coupling injection-adsorption refrigeration system is provided, so that high-grade energy can be saved, the energy utilization rate is improved, and the refrigeration stability and continuity can be improved.
This patent mainly adopts following technical scheme to realize:
the solar thermal coupling injection-adsorption refrigeration system comprises a solar thermal coupling module, an injection refrigeration module and an adsorption refrigeration module; the solar thermal coupling module is formed by connecting a solar thermal photovoltaic integrated device, a water tank and a circulating water pump through pipelines to form a cycle; the jet type refrigeration module is formed by connecting a generator, an ejector, a first condenser, a first throttle valve, a first evaporator and a booster water pump through pipelines to form a cycle; the adsorption refrigeration module is formed by connecting an adsorption plate, a second condenser, a liquid storage device, a second throttling valve and a second evaporator through pipe fittings to form a cycle; the first condenser of the jet type refrigeration module is connected with the adsorption plate of the adsorption type refrigeration module through a pipeline; the solar photo-thermal photoelectric integrated device, the first electric auxiliary heating device, the second electric auxiliary heating device, the storage battery, the municipal electric interface and the rectifier are connected through leads.
The injection type refrigeration module is driven by heat generated by the solar photo-thermal photovoltaic integrated device, the adsorption plate and the first condenser exchange heat with each other, heat dissipated by condensation of the first condenser is utilized for desorption, and meanwhile, the electric auxiliary heating device is provided to ensure stable operation of the adsorption bed and the generator. The whole system respectively utilizes the injection refrigeration and the adsorption refrigeration to carry out day and night alternate refrigeration, thereby realizing all-weather continuous stable refrigeration.
The solar photo-thermal photovoltaic integrated device, the generator, the circulating water pump and the water tank are connected through pipelines to form hot water circulation.
The refrigerant which generates refrigeration benefit in the adsorption refrigeration returns to the adsorption bed through a connecting pipeline.
And a valve is connected between the solar photo-thermal photovoltaic integrated device and the generator through a pipeline.
The booster water pump is connected with the generator, the ejector, the first evaporator and the first throttle valve through pipelines and provides power for the solar jet refrigeration cycle.
The first electric auxiliary heating device and the second electric auxiliary heating device respectively provide auxiliary heat sources for the generator and the adsorption plate.
The photo-thermal photovoltaic integrated device is connected with the storage battery through a wire and stores redundant electric quantity.
The device is also connected to a municipal power grid to ensure the normal operation of the system under the condition of insufficient solar radiation.
The liquid accumulator is used for storing the liquid refrigerant condensed by the second condenser for night use.
The adsorption plate and the first condenser exchange heat with each other, so that the condensation temperature of the first condenser can be reduced, the adsorbent in the adsorption plate can be desorbed by heating, the heat loss of the first condenser is reduced, and the energy utilization efficiency is improved.
The water tank is used for supplying water for the solar photo-thermal photovoltaic integrated device.
The beneficial effect of this patent has:
(1) the second condenser in the recyclable jet type refrigeration module condenses the heat released by condensation, and the energy utilization efficiency is improved.
(2) The solar jet refrigeration and the solar adsorption refrigeration are alternately operated to realize uninterrupted refrigeration all day long, the continuity is strong, and the system has an electric auxiliary heating device and high operation stability.
Drawings
Fig. 1 is a diagram of a solar photothermal coupling injection-adsorption type refrigeration system of the present patent.
Fig. 2 is a working flow chart of the solar photothermal coupling injection-adsorption type refrigerating system of the patent.
In fig. 1:
I. solar optothermal coupling module
II injection type refrigeration module
III adsorption type refrigeration module
1. Solar photo-thermal photovoltaic integrated device
1-1. water outlet of solar photo-thermal photovoltaic integrated device
1-2. solar photo-thermal photovoltaic integrated device water return port
2. Generator 3, circulating water pump 4, water tank
5. Ejector 6, first condenser 7, first throttle valve
8. First evaporator 9, booster pump 10, adsorption plate
11. A first electric auxiliary heating device 12, a second condenser 13 and a liquid storage device
14. Second throttle valve 15, second evaporator 16, second electric auxiliary heating device
17. Municipal electrical interface 18 rectifier 19 battery
Detailed Description
This patent combines together solar energy injection formula refrigeration and solar energy absorption formula refrigeration, has announced the continuous refrigerated combined system in turn round clock. The patent is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, a solar photo-thermal photovoltaic integrated device 1, a valve 20, a generator 2, a circulating water pump 3 and a water tank 4 are connected through pipelines to form hot water circulation; the ejector 5, the first condenser 6, the first throttle valve 7 and the first evaporator 8 are connected through pipelines; the booster water pump 9 is connected with the generator 2 and the first throttle valve 7 through pipelines, and the generator 2 is connected with the ejector 5 through a pipeline; the adsorption plate 10, the second condenser 12, the liquid reservoir 13, the second throttle valve 14 and the second evaporator 15 are connected through pipelines to form a whole adsorption refrigeration cycle; the first electric auxiliary heating device 16 is connected with the storage battery 19 through a lead; the second electric auxiliary heating device 11 is also connected with the storage battery 19 through a lead; the photo-thermal photovoltaic integrated device 1 is connected with the storage battery 19 through a lead and stores redundant electric quantity in the storage battery 19; the storage battery 19 is connected with the rectifier 18 through a lead; the rectifier 18 is connected with the municipal electric interface 17 through a lead; the first electric auxiliary heating device 16 is in contact with the generator 2 and provides heat for the generator 2; the second electric auxiliary heating device 11 comes into contact with the adsorption bed 10 and supplies heat to the adsorption bed 10.
As shown in fig. 1, the solar photothermal coupling injection-adsorption refrigeration system mainly includes a solar photothermal photovoltaic integrated device 1, a generator 2, a circulating water pump 3, a water tank 4, an ejector 5, a first condenser 6, a second condenser 12, a first evaporator 8, a second evaporator 15, an adsorption bed 10, a liquid reservoir 13, a rectifier 18, a storage battery 19, a first electric auxiliary heat device 11, a second electric auxiliary heat device 16, a booster water pump 9, a pipeline and a wire, wherein the left side in the figure is a solar photothermal coupling module, the middle is an injection refrigeration module, and the right side is an adsorption refrigeration module.
When the solar radiation is sufficient, the solar photo-thermal photovoltaic integrated device 1 absorbs the solar energy, converts part of the solar energy into heat energy for heating the heat-carrying working medium, so that the heat energy is gasified and then enters the generator 2 to release heat, and the other part of the solar energy is converted into electric energy to be stored in the storage battery 19. After absorbing heat of a heat-carrying working medium in the generator 2, the refrigerant is gasified and pressurized to generate saturated vapor, the saturated vapor enters the ejector 5, high-speed airflow is ejected through a nozzle of the ejector 5, vacuum generated near the nozzle attracts low-pressure refrigerant vapor evaporated from the first evaporator 8, the low-pressure refrigerant vapor enters the ejector 5, the saturated vapor is mixed and pressurized and then enters the first condenser 6 to release heat and condense the mixture into liquid, part of the partially condensed liquid enters the first evaporator 8 through the first throttle valve 7 to absorb heat to generate refrigeration effect, then the liquid is gasified and enters the ejector 5 again to complete the cycle of primary injection refrigeration.
The other part of the liquid refrigerant flowing out of the first condenser is boosted by a boosting water pump 9 and then returns to the generator to continuously absorb the heat of the heat-carrying working medium, and the heat is gasified and boosted to generate saturated steam.
When the jet refrigeration system is in operation, the adsorption plate 10 exchanges heat with the first condenser 6, so that the temperature in the first condenser can be reduced, the refrigerant in the adsorption plate 10 can be desorbed from the adsorbent into refrigerant single gas by utilizing the heat release of the first condenser 6, and if the desorption rate does not meet the requirement, the second electric auxiliary heating device 11 can be opened to accelerate the desorption process of the refrigerant. The desorbed refrigerant releases heat in the second condenser 12 and condenses into a liquid, and the condensed high-pressure refrigerant liquid is stored in the accumulator 13.
The valve 20 is closed at night to stop the operation of the ejector type refrigeration system, and the refrigerant liquid stored in the liquid accumulator during the day enters the second evaporator 15 through the second throttle valve 14, and enters the adsorption plate 10 again after generating the refrigeration effect, because the adsorbent is at a lower temperature at this time, the adsorbent can adsorb the refrigerant, and an adsorbent-refrigerant mixture is formed after the adsorbent adsorbs the refrigerant.
In bad weather conditions, municipal electricity is utilized by the present patent to pass through the rectifier 18 and enter the storage battery 19, so as to supply power to the first electric auxiliary heating device 16 and the second electric auxiliary heating device 11, and the system can operate normally.
As shown in fig. 2, the solar photothermal coupling injection-adsorption refrigeration system of the present invention has a working flow chart, and the valve 20 is opened or closed in the daytime, so as to switch the injection refrigeration or the adsorption refrigeration to generate the refrigeration capacity benefit. The first electric auxiliary heating device 16 is selectively turned on or off during the day depending on whether the solar radiation is sufficient; the second electric auxiliary heating device 11 is selectively turned on or off at night according to whether the temperature of the adsorption plate is enough or not, thereby ensuring the stability and continuity of the whole system.
To winter operating mode, the hot water that this patent usable solar energy optothermal photovoltaic integrated device 1 produced supplies with the radiation end and heats.
The above description is only a preferred embodiment of the present patent, and is not intended to limit the present patent, and all simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical spirit of the present patent still fall within the protection scope of the technical solution of the present patent.
Claims (4)
1. The solar thermal coupling injection-adsorption refrigeration system is characterized in that: the system comprises a solar optothermal coupling module, an injection type refrigeration module and an adsorption type refrigeration module;
the solar thermal coupling module is formed by connecting a solar thermal photovoltaic integrated device (1), a water tank (4) and a circulating water pump (3) through pipelines to form a cycle;
the jet type refrigeration module is formed by connecting a generator (2), an ejector (5), a first condenser (6), a first throttle valve (7), a first evaporator (8) and a booster water pump (9) through pipelines to form a cycle;
the adsorption type refrigeration module is formed by connecting an adsorption plate (10), a second condenser (12), a liquid storage device (13), a second throttle valve (14) and a second evaporator (15) through pipe fittings to form circulation;
the first condenser (6) of the injection type refrigeration module is connected with the adsorption plate (10) of the adsorption type refrigeration module through a pipeline,
the solar photo-thermal photoelectric integrated device (1), the first electric auxiliary heating device (16), the second electric auxiliary heating device (11), the storage battery (19), the municipal electric interface (17) and the rectifier (18) are connected through leads.
2. The solar optothermal coupling injection-adsorption refrigeration system of claim 1, wherein: the solar photo-thermal photovoltaic integrated device (1), the generator (2), the circulating water pump (3) and the water tank (4) are connected through pipelines to form hot water circulation of the whole system.
3. The solar optothermal coupling injection-adsorption refrigeration system of claim 1, wherein: the refrigerant which generates refrigeration benefit in the adsorption refrigeration returns to the adsorption plate (10) through a connecting pipeline.
4. The solar optothermal coupling injection-adsorption type refrigeration system of claim 2, wherein: a valve (20) is connected between the solar photo-thermal photovoltaic integrated device (1) and the generator (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220004641.4U CN217178931U (en) | 2022-01-04 | 2022-01-04 | Solar thermal coupling injection-adsorption type refrigerating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220004641.4U CN217178931U (en) | 2022-01-04 | 2022-01-04 | Solar thermal coupling injection-adsorption type refrigerating system |
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| CN217178931U true CN217178931U (en) | 2022-08-12 |
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| CN202220004641.4U Active CN217178931U (en) | 2022-01-04 | 2022-01-04 | Solar thermal coupling injection-adsorption type refrigerating system |
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