CN110657612A - Device for preparing ice slurry by supercooling method through solar driven evaporation - Google Patents
Device for preparing ice slurry by supercooling method through solar driven evaporation Download PDFInfo
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- CN110657612A CN110657612A CN201810716134.1A CN201810716134A CN110657612A CN 110657612 A CN110657612 A CN 110657612A CN 201810716134 A CN201810716134 A CN 201810716134A CN 110657612 A CN110657612 A CN 110657612A
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- 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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
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- 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
- F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
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- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/007—Machines, plants or systems, using particular sources of energy using solar energy in sorption type systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The embodiment of the invention provides a device for preparing ice slurry by a solar-driven evaporation supercooling method, heat required by refrigeration and dehumidification is provided by renewable energy source solar energy, and heat generated during adsorption refrigeration can be absorbed by a dehumidifier and taken away in time, so that the energy efficiency of a system is greatly improved; the solar heat collector and the solar adsorption bed work in the daytime, the desorption process is carried out, and refrigeration is not carried out; at night, the temperature of the adsorption bed is reduced, the refrigerant is adsorbed, the evaporation process is accompanied with refrigeration, and simultaneously, ice slurry which is a cold storage material with higher energy density is generated; the ice slurry generated in the day and the night can be used for occasions such as fire fighting, refrigeration and the like in the next day, the ice slurry and the desorption process are carried out simultaneously, and the device is always in a working state.
Description
Technical Field
The invention relates to the technical field of refrigeration and energy storage, in particular to a device for preparing ice slurry by a solar-driven evaporation supercooling method.
Background
In many industrial fields, such as the production and processing of dairy products, vaccines, chilled foods, etc., it is necessary to maintain a temperature environment of 4 ℃. As a heat sink, it is often required to be at least as low as 2 ℃ or lower. For reasons of safety and hygiene, etc., the heat transfer medium on the cold source side generally requires the use of fresh water, which, even if unpredictable leaks occur in the equipment, is not so harmful and toxic as to contaminate the cargo. Since water freezes below 0 ℃, it is required to control the temperature of the low-temperature clean water as a cooling source to 0-2 ℃. The common refrigeration system can only produce clear water chilled water at 4 ℃ or at most not lower than 3 ℃, if the temperature is lowered downwards, the risk that the evaporator is partially frozen to damage the heat exchanger exists, and therefore the temperature requirement of the cold source of the process is difficult to meet.
In hot areas in summer, the cooling demand is very large, and ice storage is taken as a novel centralized cooling technology with a mature technology, and a flexible operation mode of the technology becomes a potential important cooling mode in the future. The ice slurry is an ice-water mixture composed of ice crystals with diameter less than 10 microns, water and a small amount of inorganic salt, has the characteristics of flowability, high energy storage density and the like compared with solid ice cold accumulation, and can be directly pumped to a cold user end through a cold supply pipeline. Although the ice slurry cold accumulation has a plurality of advantages, the ice making system has the technical defects of low energy efficiency, difficult control of ice crystal particles in the ice storage process and easy ice blockage of an ice slurry conveying pipeline in practical application. Therefore, the performance of the ice slurry preparation device directly influences the application effect and popularization of the technology.
At present, the conventional steam compression type refrigerating device mainly provides cold energy and completely depends on electric energy, and the refrigeration of small space ranges such as newsstands, non-motor tricycles and the like is not paid attention by people. The refrigerating efficiency of a small space is not high, the electricity charge is high, and the small space is not economical.
Disclosure of Invention
The invention provides a device for preparing ice slurry by a supercooling method of solar driven evaporation, which overcomes or at least partially solves the problems that the refrigeration efficiency of small and medium spaces is not high, the electricity charge is high and the economic benefit is low in the prior art.
According to one aspect of the invention, a device for preparing ice slurry by a solar driven evaporation supercooling method is provided, which comprises a solar adsorption refrigeration system, an ice slurry preparation system and a heat storage water tank;
the solar adsorption refrigeration system comprises a solar heat collector, a solar adsorption bed, a refrigerator and an evaporator; an activated carbon adsorbent, calcium chloride and a methanol refrigerant are arranged in the solar adsorption bed; the solar heat collecting plate is connected with the solar adsorption bed, the solar adsorption bed is connected with the refrigerator, and the refrigerator is connected with the solar adsorption bed through a heat exchange connecting pipeline; the heat exchange pipeline is provided with an evaporator, and the evaporator is provided with a low-temperature low-humidity air outlet and a low-humidity air inlet;
the ice slurry preparing device comprises a pulping chamber and an ice storage box, wherein a nozzle is arranged at the top of the pulping chamber, a water inlet of the ice storage box is connected with the bottom of the pulping chamber, and a water outlet of the ice storage box is connected with the nozzle; a supercooling relieving device is arranged below the nozzle, and a low-temperature and low-humidity air inlet and a steam outlet are also arranged on the pulping chamber; the water vapor outlet is connected with the low-humidity air inlet after passing through a dehumidifier, and the low-temperature low-humidity air inlet is connected with the low-temperature low-humidity air outlet;
the heat storage water tank is connected with the solar adsorption bed and the dehumidifier.
Preferably, the dehumidifier absorbs the water vapor in the vacuum chamber, the pressure in the vacuum chamber is kept lower than the saturated water vapor pressure, the water is cooled to reach a supercooled state, ice slurry is generated by the supercooling relieving device, and the ice blockage phenomenon cannot occur due to low supercooling degree.
Preferably, the inclination angle of the solar heat collecting plate and the solar adsorption bed to the horizontal direction is 30-60 degrees.
Preferably, a first valve is arranged on a connecting pipeline between the heat storage water tank and the solar adsorption bed; and a hot water pump and a second valve are arranged on a connecting pipeline between the heat storage water tank and the dehumidifier.
Preferably, a third valve is arranged on a connecting pipeline between the refrigerator storage and the bottom of the pulping chamber, and a fourth valve, an ice crystal filter and a vacuum gauge are arranged on a connecting pipeline between the refrigerator storage and the nozzle.
Preferably, an expansion valve is arranged on a heat exchange pipeline between the refrigerator and the evaporator.
Preferably, the refrigerator comprises a cooling water channel, a refrigerant inlet and a refrigerant outlet, the refrigerant inlet is connected with the solar adsorption bed, and the refrigerant outlet is connected with the heat exchange pipeline.
Preferably, a first pump is arranged on a connecting pipeline between the water vapor outlet and the low-humidity air inlet; and a second pump is arranged on a connecting pipeline between the low-temperature low-humidity air outlet and the low-temperature low-humidity air inlet.
The invention provides a device for preparing ice slurry by a solar-driven evaporation supercooling method, heat required by refrigeration and dehumidification is provided by renewable energy source solar energy, and heat generated during adsorption refrigeration can be absorbed by a dehumidifier and taken away in time, so that the energy efficiency of a system is greatly improved; the solar heat collector and the solar adsorption bed work in the daytime, the desorption process is carried out, and refrigeration is not carried out; at night, the temperature of the adsorption bed is reduced, the refrigerant is adsorbed, the evaporation process is accompanied with refrigeration, and simultaneously, ice slurry which is a cold storage material with higher energy density is generated; the ice slurry generated in the day and the night can be used for occasions such as fire fighting, refrigeration and the like in the next day, the ice slurry and the desorption process are carried out simultaneously, and the device is always in a working state.
Drawings
FIG. 1 is a schematic diagram of an apparatus for preparing ice slurry by a supercooling method of solar driven evaporation according to an embodiment of the invention.
Reference numerals:
an ice crystal filter-1; a vacuum gauge-2; a first pump-3; dehumidifier-4; a hot water pump-5; a heat storage water tank-6; a first valve-7; a solar heat collector-8; a solar adsorption bed-9; a cooling water channel-10; a refrigerant inlet-11; a refrigerant outlet-12; an expansion valve-13; an evaporator-14; a second pump-15; a second valve-16; low temperature and low humidity air inlet-17; nozzle-18; subcooling relief means-19; a third valve-20; a water vapor outlet-21; refrigerator-22; a fourth valve-23.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As a novel cold storage medium, the ice slurry has the advantages of high heat exchange coefficient, high cooling rate, pumpability and flowability, and is widely applied to various fields. The ice slurry mainly serves as a secondary refrigerant to cool foods, buildings and the like, and the ice slurry preparation technology also becomes a key part in the research of ice slurry subjects.
By ice slurry is meant a two-phase solution of solids and liquids containing a large number of suspended ice particles, also known as "fluid ice", "binary ice" or "pumpable ice". Wherein the average size of ice particles is not more than 1mm, and alcohol or salt inhibitor is usually added into the solution to lower the freezing point. The generation process of the ice slurry by the supercooled water method is separated from the cooling heat exchange process, the thermal resistance between a refrigerant and the supercooled water is small, and the refrigerating machine can have higher evaporation temperature so as to improve the energy utilization efficiency. The preparation and storage processes of the ice slurry are separated, so that the design of a modularized and separated ice storage tank can be adopted according to the structure of a building. By combining the ultralow temperature air supply system, the ice slurry can quickly release cold, the low water outlet temperature and the low air supply temperature are kept, the relative humidity of an air conditioning area is reduced, and the effects of energy conservation and high comfort are achieved.
Although the ice slurry cold accumulation has a plurality of advantages, the ice making system has the technical defects of low energy efficiency, difficult control of ice crystal particles in the ice storage process and easy ice blockage of an ice slurry conveying pipeline in practical application. Therefore, the performance of the ice slurry preparation device directly influences the application effect and popularization of the technology. Solar energy resources in hot areas are extremely rich, and if the solar energy resources can be used for ice slurry cold storage, the solar energy resources have double meanings, so that the running pressure of a power grid caused by overhigh load of an air conditioner is relieved, and the utilization rate of solar energy is improved. Therefore, in the embodiment, the device for preparing ice slurry by utilizing evaporative supercooling driven by solar energy is provided.
As shown in fig. 1, the present embodiment provides an apparatus for preparing ice slurry by supercooling method using solar-driven evaporation, which includes a solar adsorption refrigeration system, an ice slurry preparation system, and a heat storage water tank 6;
the solar adsorption refrigeration system comprises a solar heat collector 8, a solar adsorption bed 9, a refrigerator and an evaporator 14; an activated carbon adsorbent and calcium chloride and methanol refrigerants are arranged in the solar adsorption bed 9; the evaporation temperature of the active carbon-methanol working medium pair can reach below the freezing point of water, a certain amount of calcium chloride is added to increase the adsorption amount and the adsorption speed, the solar heat collecting plate is connected with the solar adsorption bed 9, the solar adsorption bed 9 is connected with the refrigerator, and the refrigerator is connected with the solar adsorption bed 9 through a heat exchange connecting pipeline; the heat exchange pipeline is provided with an evaporator 14, and the evaporator 14 is provided with a low-temperature low-humidity air outlet and a low-humidity air inlet;
the ice slurry preparing device comprises a pulping chamber and an ice storage box 22, wherein a nozzle 18 is arranged at the top of the pulping chamber, a water inlet of the ice storage box 22 is connected with the bottom of the pulping chamber, and a water outlet of the ice storage box 22 is connected with the nozzle 18; a supercooling relieving device 19 is arranged below the nozzle 18, and a low-temperature and low-humidity air inlet 17 and a water vapor outlet 21 are also arranged on the pulping chamber; the water vapor outlet 21 is connected with the low-humidity air inlet after passing through a dehumidifier 4, and the low-temperature low-humidity air inlet 17 is connected with the low-temperature low-humidity air outlet; the nozzle 18 injects the low-temperature secondary refrigerant into the ice slurry preparation device to directly cool the water solution so as to generate the ice slurry, and the heat exchange coefficient is improved. Compared with indirect ice making, the direct contact has no problem of ice layer accumulation, so that measures such as additional deicing and the like are not needed.
The heat storage water tank 6 is connected with the solar adsorption bed 9 and the dehumidifier 4.
In this embodiment, the solar adsorption refrigeration is combined with the ice slurry making device. Solar energy is a renewable energy source which has been widely used, is not only greatly influenced by weather conditions, but also slightly influenced by other factors such as regions, seasons and the like, is sufficient in summer and is easy to collect. The solar energy which is abundant and easy to get is utilized to carry out absorption type refrigeration. The ice slurry can be used as a cold storage material, can release high phase change latent heat during melting, and can refrigerate in a short time. Therefore, the solar energy is stored in the adsorption system in the daytime and can be used for refrigerating in the daytime at night, and the ice slurry can store cold, so that the solar energy can be used for refrigerating in the next day if the solar energy is sufficient, and the operation is repeated. Is very suitable for small-space places such as non-motor tricycles, newsstands and the like.
The solar heat collector 8 and the solar adsorption bed 9 work in the daytime, and perform desorption process without refrigeration; at night, the temperature of the adsorption bed is reduced, the refrigerant is adsorbed, the evaporation process is accompanied with refrigeration, and simultaneously, ice slurry which is a cold storage material with higher energy density is generated; the ice slurry generated in the day of the next day can be used in occasions such as fire fighting, refrigeration and the like, and is carried out simultaneously with the desorption process, so that the working state is always kept. The heat required by the refrigeration and dehumidification of the whole device is provided by renewable energy solar energy, and the heat generated during adsorption refrigeration can be absorbed by the dehumidifier 4 and taken away in time, so that the energy efficiency of the system is greatly improved. Active carbon solid adsorbent is filled in the solar adsorption bed 9, a certain amount of calcium chloride is added to increase the adsorption capacity and the adsorption speed, the refrigerant is methanol refrigerant, and the evaporation temperature of the active carbon-methanol working medium pair can reach below the freezing point of water.
The dehumidifier 4 is used for absorbing water vapor in the vacuum chamber, so that the pressure in the vacuum chamber is kept lower than the saturated water vapor, the water reaches a supercooled state after being cooled, ice slurry is generated through the supercooled contact device, and the ice blockage phenomenon cannot occur due to low supercooling degree.
On the basis of the above example, the evaporator 14 is a shell-and-tube heat exchanger. In this embodiment, the air in the evaporator 14 can exchange heat with the heat exchange pipe sufficiently, so that the temperature of the air is reduced below the freezing point to become low-temperature air; and then enters the dehumidifier 4 to become low-temperature and low-humidity air.
On the basis of the above embodiment, the inclination angle of the solar heat collecting plate and the solar adsorption bed 9 to the horizontal direction is 30-60 degrees. The inclination angles of the solar heat collector 8 and the solar adsorption bed 9 in the horizontal direction are 30-60 degrees, and the specific inclination angle is determined according to the local latitude so as to ensure that the solar energy is absorbed to the maximum extent. The solar energy is sufficient in summer, the included angle between the solar irradiation direction and the ground is large, the heat collection efficiency is high, and the adsorption type refrigeration efficiency is high. And the solar energy is a renewable resource, so that the proportion of refrigeration energy consumption to total electric energy can be reduced in summer electricity utilization peak period, and the solar energy heat pump is energy-saving and environment-friendly.
On the basis of the above embodiment, a first valve 7 is arranged on a connecting pipeline between the heat storage water tank 6 and the solar adsorption bed 9; a hot water pump 5 and a second valve 16 are arranged on a connecting pipeline between the heat storage water tank 6 and the dehumidifier 4. The heat storage water tank 6 is connected with the solar adsorption bed 9, and redundant heat in the desorption process in the daytime can be sent to the heat storage water tank 6 for hot water supply; in the adsorption process at night, the zeolite absorbs moisture to generate adsorption heat to influence further adsorption, at the moment, the hot water valve is opened, water flows into the solar adsorption bed 9 from the heat storage water tank 6 to take away heat, the adsorption heat generated in the adsorption process is absorbed, and the adsorption temperature is reduced.
On the basis of the above embodiment, a third valve 20 is arranged on the connecting pipeline between the ice storage box 22 and the bottom of the pulping chamber, and a fourth valve 23, an ice crystal filter 1 and a vacuum gauge 2 are arranged on the connecting pipeline between the ice storage box 22 and the nozzle 18.
On the basis of the above embodiment, an expansion valve 13 is arranged on the heat exchange pipeline between the refrigerator and the evaporator 14.
On the basis of the above embodiment, the refrigerator includes a cooling water channel 10, a refrigerant inlet 11 and a refrigerant outlet 12, the refrigerant inlet 11 is connected to the solar adsorption bed 9, and the refrigerant outlet 12 is connected to the heat exchange pipe.
In this embodiment, the ice slurry cannot be prepared by directly contacting with water, so that the coolant without water is cooled by the coolant, in this embodiment, the low-temperature and low-humidity air is used as the coolant to exchange heat, and then the cooled low-temperature coolant is directly sprayed into the ice slurry generator to contact with water, so that the water is cooled to the freezing point to form the ice slurry; the slurry is delivered to an ice storage tank where the water-insoluble coolant is separated from the water at the bottom and re-delivered to the evaporator 14 for cooling. The ice slurry cold storage technology can relieve the situation of insufficient power consumption peak.
The low temperature coolant is delivered to the receiver by spraying into the ice slurry generation chamber through the nozzle 18, the low temperature coolant directly contacts with water, the water is cooled to the freezing point to form ice slurry, the ice slurry and the low temperature coolant are layered due to insolubility, the ice slurry flows into the ice storage box, and the low temperature coolant is delivered back to the evaporator 14 in the form of water vapor to be circulated again.
On the basis of the above embodiment, the first pump 3 is arranged on the connecting pipeline between the water vapor outlet 21 and the low-humidity air inlet; and a second pump 15 is arranged on a connecting pipeline between the low-temperature low-humidity air outlet and the low-temperature low-humidity air inlet 17.
In conclusion, the invention provides the device for preparing the ice slurry by the supercooling method through the solar driven evaporation, the heat required by refrigeration and dehumidification is provided by renewable energy source solar energy, and the heat generated during adsorption refrigeration can be absorbed by the dehumidifier and taken away in time, so that the energy efficiency of the system is greatly improved; the solar heat collector and the solar adsorption bed work in the daytime, the desorption process is carried out, and refrigeration is not carried out; at night, the temperature of the adsorption bed is reduced, the refrigerant is adsorbed, the evaporation process is accompanied with refrigeration, and simultaneously, ice slurry which is a cold storage material with higher energy density is generated; the ice slurry generated in the day and the night can be used for occasions such as fire fighting, refrigeration and the like in the next day, the ice slurry and the desorption process are carried out simultaneously, and the device is always in a working state.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention, and are not limited thereto; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A device for preparing ice slurry by a solar driven evaporation supercooling method is characterized by comprising a solar adsorption refrigeration system, an ice slurry preparation system and a heat storage water tank;
the solar adsorption refrigeration system comprises a solar heat collector, a solar adsorption bed, a refrigerator and an evaporator; an activated carbon adsorbent and a methanol refrigerant are arranged in the solar adsorption bed; the solar heat collecting plate is connected with the solar adsorption bed, the solar adsorption bed is connected with the refrigerator, and the refrigerator is connected with the solar adsorption bed through a heat exchange connecting pipeline; the heat exchange pipeline is provided with an evaporator, and the evaporator is provided with a low-temperature low-humidity air outlet and a low-humidity air inlet;
the ice slurry preparing device comprises a pulping chamber and an ice storage box, wherein a nozzle is arranged at the top of the pulping chamber, a water inlet of the ice storage box is connected with the bottom of the pulping chamber, and a water outlet of the ice storage box is connected with the nozzle; a supercooling relieving device is arranged below the nozzle, and a low-temperature and low-humidity air inlet and a steam outlet are also arranged on the pulping chamber; the water vapor outlet is connected with the low-humidity air inlet after passing through a dehumidifier, and the low-temperature low-humidity air inlet is connected with the low-temperature low-humidity air outlet;
the heat storage water tank is connected with the solar adsorption bed and the dehumidifier.
2. The apparatus for preparing ice slurry by using solar-driven evaporation and supercooling method according to claim 1, wherein the dehumidifier is used for absorbing water vapor in the vacuum chamber, keeping the pressure in the vacuum chamber lower than the saturated water vapor pressure, and generating ice slurry by cooling water to a supercooled state; the supercooling relieving device is used for preventing ice blockage caused by low supercooling degree of ice slurry.
3. The apparatus for preparing ice slurry by using supercooling method of solar driving evaporation according to claim 1, wherein the inclination angle of the solar heat collecting plate and the solar adsorption bed to the horizontal direction is 30 ° to 60 °.
4. The apparatus for preparing ice slurry by using a supercooling method of solar driven evaporation according to claim 1, wherein a first valve is arranged on a connecting pipeline between the heat storage water tank and the solar adsorption bed; and a hot water pump and a second valve are arranged on a connecting pipeline between the heat storage water tank and the dehumidifier.
5. The apparatus according to claim 1, wherein a third valve is disposed on the connecting pipeline between the refrigerator and the bottom of the pulping chamber, and a fourth valve, an ice crystal filter and a vacuum gauge are disposed on the connecting pipeline between the refrigerator and the nozzle.
6. The apparatus of claim 1, wherein an expansion valve is disposed in the heat exchange pipe between the refrigerator and the evaporator.
7. The apparatus of claim 1, wherein the refrigerator comprises a cooling water passage, a refrigerant inlet and a refrigerant outlet, the refrigerant inlet is connected to the solar adsorption bed, and the refrigerant outlet is connected to the heat exchange tube.
8. The apparatus according to claim 1, wherein a first pump is provided in the connection pipe between the water vapor outlet and the low humidity air inlet; and a second pump is arranged on a connecting pipeline between the low-temperature low-humidity air outlet and the low-temperature low-humidity air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810716134.1A CN110657612A (en) | 2018-06-29 | 2018-06-29 | Device for preparing ice slurry by supercooling method through solar driven evaporation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810716134.1A CN110657612A (en) | 2018-06-29 | 2018-06-29 | Device for preparing ice slurry by supercooling method through solar driven evaporation |
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| CN110657612A true CN110657612A (en) | 2020-01-07 |
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