KR20170106662A - Agricultural and fishery dry using the aluminum solar panels and thermodynamic solar hot water system - Google Patents

Agricultural and fishery dry using the aluminum solar panels and thermodynamic solar hot water system Download PDF

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Publication number
KR20170106662A
KR20170106662A KR1020160030027A KR20160030027A KR20170106662A KR 20170106662 A KR20170106662 A KR 20170106662A KR 1020160030027 A KR1020160030027 A KR 1020160030027A KR 20160030027 A KR20160030027 A KR 20160030027A KR 20170106662 A KR20170106662 A KR 20170106662A
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South Korea
Prior art keywords
drying
heat
aluminum
hot water
solar
Prior art date
Application number
KR1020160030027A
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Korean (ko)
Inventor
철 허
Original Assignee
솔라보일러주식회사
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Priority to KR1020160030027A priority Critical patent/KR20170106662A/en
Publication of KR20170106662A publication Critical patent/KR20170106662A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08—Humidity
    • F24J2/02—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/022—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow
    • F26B21/028—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow by air valves, movable baffles or nozzle arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/08—Humidity
    • F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • F26B21/145—Condensing the vapour onto the surface of the materials to be dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The present invention is intended to realize a boiler system, which has combined an advantage of a solar panel boiler heating water by using infinitive solar heat and a characteristic of a heat pump such that high energy efficiency is maintained and hot water can be generated during day and night or in cold winter, and to apply the boiler system for drying agricultural and marine products. According to the present invention, an aluminum solar panel absorber plate is manufactured in a roll bond method. By using the aluminum solar panel absorber instead of a pin coil evaporator of the heat pump, solar heat or atmospheric heat is directly collected so that much higher energy efficiency can be obtained than the heat pump. In addition, by installing the aluminum solar panel absorber in an interior of a drying portion, high temperature moisture is condensed and the only condensed water is discharged to the outside. As such, energy required for drying the agricultural and marine products can be drastically reduced, and quality of objects to be dried can be maximized by easily controlling heat radiation temperature.

Description

[0001] 1. Field of the Invention [0002] The present invention relates to an aluminum solar panel and a thermodynamic solar hot water system,

Thermodynamics using aluminum solar collectors Drying technology to dry large quantities of agricultural and marine products using solar hot water production system.

Drying of agricultural products is a unit operation to remove water or solvent contained in the dried products by directly or indirectly applying energy. There are methods using natural drying methods such as solar heat and sea breeze, and methods using energy such as gas and oil electricity. Among energy drying methods, hot air drying methods using electricity, gas, and oil tend to consume a large amount of energy and deteriorate product quality.

In the general hot air drying process, since most of the hot air, except the heat radiation loss, is directly discharged as it is after most of the heat retained is used for temperature rise and moisture evaporation of the drying object, There is a disadvantage that energy loss is large.

Therefore, it is an important factor of energy saving to effectively recover and utilize the heat loss of dry air and steam in the hot air drying process, and it is also possible to use a condensation heat exchanger And a dehumidification drying technique using a heat pump or the like is applied. The heat pump drying technique has advantages and characteristics that it saves energy (more than 60%) than the drying method by gas or oil boiler.

The method of drying the agricultural and marine products by the thermodynamic hot water production system using the aluminum solar collecting plate produces hot water by collecting the solar heat or the queue, and the evaporator (aluminum solar heat collecting plate) for condensing the water vapor in the drying chamber is installed So that the energy can be saved greatly.

In a general hot air drying method of drying agricultural and marine products using electricity, gas and oil, the drying rate is determined by the temperature and humidity of the heated air. The heating time of the heated air is short and the heat amount of the exhaust gas And the latent heat of water vapor) is large, so that there is a disadvantage that energy loss is large. The drying method developed in consideration of the disadvantage of the hot air drying is a heat pump drying method.

The heat pump drying method is a refrigeration cycle in which heat energy is absorbed at a low temperature to dissipate heat at a high temperature. In the drying step, a refrigerant compression type heat pump using a medium such as a refrigerant is mainly used. The system uses evaporation, compression, Forming a cycle that repeats the process. The drying system using the heat pump collects the heat energy which is contained in the air as a latent heat from the air containing water vapor and passes through the endothermic part (evaporator) of the heat pump. When the temperature is raised by reheating the steam-depleted air in the heat-radiating part (condenser) of the heat pump, the relative humidity of the air is lowered. By circulating it to the drying section, a dehumidifying type dryer can be constituted by a heat pump.

The drying method of the heat pump can save more than 60% of energy compared to the hot air drying. However, since the current heat pump uses a lot of energy, additional energy saving is required and temperature control which is necessary for drying the agricultural and marine products is difficult One thing that must be improved. If the temperature is not controlled, the quality of the laundry is deteriorated.

The means of the present invention is to apply an aluminum solar panel having excellent heat collection performance and a thermodynamic solar hot water production system using the aluminum solar panel to the agricultural and marine products to save energy and improve the quality of the product.

An aluminum solar panel made by roll bond manufacturing method is used as evaporator, and a thermodynamic solar hot water production system is constituted by compressor, condenser and expansion valve.

Part of the aluminum solar collecting plate (evaporator) is installed outside the drying unit to collect hot water by collecting the solar heat and the queue, and a part of the solar heat collecting plate (evaporator) is installed in the drying unit to perform dehumidification.

Thermodynamics In the drying method by the solar hot water production system, hot air made of hot water generates water vapor while passing through the drying object. As the air including water vapor passes through the aluminum solar collecting plate (evaporator), the heat energy recovered from the latent heat of the steam is recovered, and the water vapor accompanying the air condenses and is removed. When the temperature is raised by heating the air from which steam has been removed from the heat dissipating section, the relative humidity of the air is lowered. By repeating this process, it is possible to construct a dehumidifying type dryer by thermodynamic solar hot water production system.

Among the methods of drying agricultural and marine products, the most popular method is the hot air drying method.

The reason that the hot air drying method is most widely used is that the dryer is easy to manufacture and the manufacturing cost is low.

However, hot air drying is not suitable for large-scale drying method because energy waste is so large.

Heat pump drying is the way to save energy and dry it on a large scale.

The heat pump drying method is advantageous in that it can save energy by as much as 60% compared to the hot air drying method. On the other hand, when a frozen food such as frozen red pepper is to be dried, an auxiliary heater must be used, resulting in waste of energy. When drying agricultural and marine products, heat and humidity must be controlled.

Aluminum Solar Collector Plate The thermoelectric hot plate production system uses hot water produced by an external solar panel to store hot water in a hot water tank. Hot water is used to store hot air in the drying unit, Since the moisture is removed by the aluminum heat collecting plate of the area, loss due to moisture release can be reduced, and temperature control can be freely performed. Therefore, the quality of the object to be dried can be maximized. Aluminum solar panels The thermodynamic hot water production system has the great advantage of reducing energy costs by more than 50% compared to heat pump drying.

1 is a plan view of an aluminum solar collector plate (evaporator) to which the technique of the present invention is applied.
2 is a plan view of the agricultural and marine product dryer to which the technique of the present invention is applied.

The material for producing the aluminum solar collector plate (evaporator) 10 is an aluminum sheet having a purity of 99.5% or more, which is excellent in heat conduction, strong in corrosion resistance and easy to be processed and has a thickness of 1.5 to 2.0 mm Is appropriate. The size of the solar heat collecting plate 10 is preferably 2,000 mm in width and 1,000 mm in length or less,

The distance between the refrigerant flow tube 23 and the flow tube formed in the aluminum solar collector plate 10 is 30 mm to 60 mm and the outer diameter of the refrigerant flow tube 23 is in the range of 3 mm to 6 mm.

The solar heat collecting plate 10 is finished in the form of a "C" 27 to reinforce the structure of the heat collecting plate and facilitate handling. The thickness of the "C" bending of the four faces is suitably from 20 mm to 25 mm, the bolt holes of 8 mm in diameter are formed on each of the three long sides (six on both sides), and the solar heat collecting plate (evaporator) (50), it is utilized for attaching a support.

The aluminum solar collector plate (evaporator) 10 is coated with a black coating of a high corrosion resistance. The inlet 26 and the outlet 25 of the aluminum solar collecting plate (evaporator) 10 facilitate the connection of the pipe 34 with the hot water production system 30 by welding a copper pipe.

The aluminum solar collecting plate (evaporator) 10 described above is the first content of the present invention, and the aluminum solar collecting plate thermodynamic solar hot water producing system using the system for producing agricultural and marine products is capable of compressing, condensing, expanding, (Cycle). The components responsible for this process are the aluminum solar collectors (evaporators) 10, the compressors 31, the condensers 32 and the expansion valves 33 and are connected to each component, including the solar collector (evaporator) Shall be copper pipes.

Hot water is produced by the operation of an aluminum solar collecting plate (evaporator) 10 installed outside the drying unit, a collecting plate (evaporator) 10 installed inside the drying unit, and a hot water production system 30. The produced hot water is stored in the hot water tank 40. When the temperature of the hot water tank is lowered, the hot water production system is restarted to maintain the set temperature. Since the aluminum solar collecting plate 10 receives the solar heat directly, the energy efficiency of the thermodynamic solar hot water producing system using the heat collecting plate 10 is very high, and the thermal coefficient (COP) is 6 or more.

The hot water in the hot water tank 40 is sent to the heat dissipating unit 42 by the water circulation pump 41, and the heat dissipating unit starts to generate heat. The air circulation fan 43 installed together with the heat radiator operates to circulate the air. The hot air circulates between the tray and the tray filled with the bogie 52 and circulates toward the ceiling of the drying unit 50. The hot air circulates through the aluminum solar collector plate (evaporator) 10 installed on the ceiling side, Until the end of drying of the agricultural and marine products. The subsequent drying of the agricultural and marine product dries and the evaporation of water starts. The evaporated water vapor continues to circulate in the drying section 50 together with hot air.

The heat collecting plate (evaporator) 10 of the thermodynamic solar hot water production system evaporates and is rapidly cooled.

The cooling of the heat collecting plate (evaporator) 10 recovers the thermal energy that the steam circulating in the drying unit 50 has as a latent heat, and the water vapor accompanying the air condenses and is discharged to the outside through the drain port 51.

When the steam-removed air is continuously heated by the heat radiator 42 to raise the temperature, the relative humidity of the air gradually decreases gradually. By repeating this process, it is possible to dry the agricultural and marine products by the thermodynamic hot water production system using the aluminum solar collecting plate.

The method of drying the agricultural product by the hot water production system using the aluminum solar collector is similar to the drying method using the heat pump widely used in agricultural and marine products drying, It is possible to maximize the quality of the laundry, since the drying efficiency of the laundry can be improved. Therefore, this drying method should be implemented urgently even for energy saving.

10: Aluminum solar panel (evaporator)
20: Refrigerant flow dividing supply section
21: Refrigerant flow compensation tube
22: refrigerant flow capillary
23: refrigerant evaporation diffuser
24: gas refrigerant collecting part
25: gas refrigerant outlet
26: liquid refrigerant inlet
27: Structure of "c"
30: Hot water production system
31: Compressor
32: Condenser
33: Expansion valve
34: Refrigerant piping
40: Hot water tank
41: Water circulation pump
42:
43: Air circulation fan
50: drying section
51: drain
52: Balance

Claims (1)

An aluminum solar collector (evaporator) (10) is manufactured by the roll-bond method and constitutes a thermodynamic hot water production system using an aluminum solar collector.
Aluminum Solar Collector (Evaporator) The structure of the agricultural and marine products drying system using hot water production system,
A part of the water of the hot water production system 30, the hot water tank 40 and the aluminum heat collecting plate (evaporator) 10 is installed outside the drying unit 50 to collect the solar heat and the queue and the aluminum solar collecting plate (evaporator) 10) Some of the water is used to condense the water vapor in the drying unit (50).
An aluminum solar panel (evaporator) (10) is manufactured by the roll-bond method, and the agricultural and marine product drying method using the thermodynamic hot water production system using the aluminum solar heat collecting plate is used for all drying except agricultural products.
KR1020160030027A 2016-03-14 2016-03-14 Agricultural and fishery dry using the aluminum solar panels and thermodynamic solar hot water system KR20170106662A (en)

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KR1020160030027A KR20170106662A (en) 2016-03-14 2016-03-14 Agricultural and fishery dry using the aluminum solar panels and thermodynamic solar hot water system

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KR1020160030027A KR20170106662A (en) 2016-03-14 2016-03-14 Agricultural and fishery dry using the aluminum solar panels and thermodynamic solar hot water system

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KR20170106662A true KR20170106662A (en) 2017-09-22

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109099696A (en) * 2018-06-12 2018-12-28 东南大学 A kind of solar-assisted heat pump drying system method and device
CN109399891A (en) * 2018-12-28 2019-03-01 浙江天行健水务有限公司 Energy-saving belt sludge at low temperature desiccation apparatus
CN115615153A (en) * 2022-08-09 2023-01-17 珠海格力电器股份有限公司 Drying system control method and device and drying system
CN115615153B (en) * 2022-08-09 2024-06-07 珠海格力电器股份有限公司 Drying system control method and device and drying system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109099696A (en) * 2018-06-12 2018-12-28 东南大学 A kind of solar-assisted heat pump drying system method and device
CN109399891A (en) * 2018-12-28 2019-03-01 浙江天行健水务有限公司 Energy-saving belt sludge at low temperature desiccation apparatus
CN109399891B (en) * 2018-12-28 2024-03-12 浙江天行健水务有限公司 Energy-saving belt type sludge low-temperature drying device
CN115615153A (en) * 2022-08-09 2023-01-17 珠海格力电器股份有限公司 Drying system control method and device and drying system
CN115615153B (en) * 2022-08-09 2024-06-07 珠海格力电器股份有限公司 Drying system control method and device and drying system

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