CN108684812A - A kind of fruit fast precooling machine on the spot - Google Patents
A kind of fruit fast precooling machine on the spot Download PDFInfo
- Publication number
- CN108684812A CN108684812A CN201810297087.1A CN201810297087A CN108684812A CN 108684812 A CN108684812 A CN 108684812A CN 201810297087 A CN201810297087 A CN 201810297087A CN 108684812 A CN108684812 A CN 108684812A
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- Prior art keywords
- evaporator
- compressor
- condenser
- fore
- spot
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Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/015—Preserving by irradiation or electric treatment without heating effect
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/04—Freezing; Subsequent thawing; Cooling
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B7/152—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O ; Elimination of such other gases
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention relates to a kind of fruit fast precooling machines on the spot, it is characterized in that, including babinet, refrigerating plant, dehumidification device, control device and sterilizing unit, fore-cooling room and cool room are equipped in babinet, refrigerating plant includes passing through the sequentially connected compressor of pipeline, condenser, liquid storage cylinder and evaporator, compressor, condenser and liquid storage cylinder are arranged in cool room, evaporator is arranged in fore-cooling room, evaporator includes evaporation finned tube and fan, dehumidification device includes electric heater and drain valve, electric heater is arranged in the evaporation finned tube side, bottom of the drain valve in fore-cooling room, sterilizing unit is arranged in the fore-cooling room.Refrigerating speed of the present invention is fast, has dehumidifying and sterilizing function, can effectively maintain the Post-harvest quality of berry, main screw lift is light, and field is facilitated to carry.
Description
Technical field
The present invention relates to fruit precooling equipment technical fields, and in particular to one kind being used for fruit fast precooling machine on the spot.
Background technology
Fruit carries a large amount of field heats after adopting, its respiratory intensity is promoted to accelerate, and the machinery wound in recovery process also can be into one
Step reinforces respiration, releases a large amount of respiration heat, causes fruit temperature to increase, to accelerate quality decline and rotten aging.Cause
This, fruit enters back into storage after being rapidly cooled to low temperature after adopting or circulation is to maintain its freshness and the key of nutritive value.Mesh
Before, American-European-Japanese equal developed countries are by postharvest fruit and vegetable precooling as essential process together.The fruit such as red bayberry, blueberry harvest just
It is worth high temperature and rainy season, can inhibit respiration by being pre-chilled in time, reduces nutriment consumption, prolong storage period, precooling is
The important step of its commercialized treatment after adopting.Studies have shown that the fruit such as red bayberry, blueberry adopt after apart from pre-coo time interval it is more short more
Be conducive to the holding of its quality.But it currently, there is no available light Pre-cooling equipment on the spot in the market, is generally needed after fruit harvesting
Being transported to freezer by 3-5 hours could be pre-chilled, and seriously affect fresh-keeping effect.Therefore, it researchs and develops and is suitble to red bayberry, blueberry etc.
Fruit-producing area convenient quickly Pre-cooling equipment is most important.
Invention content
It is proposed to solve the fruit such as red bayberry, the blueberry existing above problem, present invention in terms of using precooling freshness retaining
A kind of can realize is quickly cooled down, antibacterial dehumidifying and can be transported to the fruit of field fast precooling machine on the spot.
To achieve the goals above, the present invention provides a kind of fruit fast precooling machines on the spot, which is characterized in that including case
Body, refrigerating plant, dehumidification device, control device and sterilizing unit, babinet is interior to be equipped with fore-cooling room and cool room, and refrigerating plant includes
By the sequentially connected compressor of pipeline, condenser, liquid storage cylinder and evaporator, compressor, condenser and liquid storage cylinder setting are being made
In cold house, evaporator is arranged in fore-cooling room, and evaporator includes evaporation finned tube and fan, dehumidification device include electric heater and
Drain valve, electric heater setting are arranged in the bottom of fore-cooling room, sterilizing unit in institute in the evaporation finned tube side, drain valve
It states in fore-cooling room.
Fruit provided by the invention fast precooling machine on the spot, refrigerating speed is fast, has dehumidifying and sterilizing function, can effectively protect
The Post-harvest quality of berry is held, main screw lift is light, and field is facilitated to carry.Dehumidification device uses refrigeration principle, by precooling
The refrigeration system of machine is completed by electricity-heated defrosting, Auto-drainage.Sterilizing unit is arranged in the bottom of fore-cooling room, can be etc. from
Electronic generator or ozone sterilizer.Sterilizing unit is individual components, can be according to berry variety adoption.
Further, the condenser is air-cooled condenser, has condensing fin pipe, R=60nv ηv(i1-i2)/v1, Qc=
60nvηv(i3-i4)/v1, Q0=a0F0Δt0, Qk=akFkΔtk, meet Q0> R, Qk> Qc, wherein R is the pressure of the compressor
Contracting mechanism cold, QcFor the condenser heat rejection amount of the condenser, Q0For the evaporator heat exchange amount of the evaporator, QkIt is described
The condenser heat exchange amount of condenser, n are compressor rotary speed, and v is the piston motion volume of compressor, ηvIt is imitated for compressor volume
Rate, i1For the enthalpy of evaporator outlet refrigerant, i2For the enthalpy of evaporator inlet refrigerant, i3To compress the enthalpy of end of a period refrigerant, i4
For the enthalpy of condensator outlet refrigerant, v1For compressor air suction mouth refrigerant specific volume, a0To evaporate in terms of finned tube heat dissipation area
Surface film thermal conductance, F0To evaporate the heat dissipation area of finned tube, Δ t0For the heat transfer temperature difference of evaporator, akFor with condensing fin pipe
The surface film thermal conductance of heat dissipation area meter, FkFor the heat dissipation area of condensing fin pipe, Δ tkFor the heat transfer temperature difference of condenser.This hair
Matching between the bright various pieces to refrigerating plant optimizes, and refrigerating speed is fast, as long as from 30 DEG C to 0 DEG C of room temperature 10 minutes,
Fast precooling is achieved the purpose that.
Description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is partial cutaway view schematic of the present invention;
Fig. 3 is refrigerating device structure schematic diagram.
Invention is further described in detail below in conjunction with the accompanying drawings.
Specific implementation mode
Referring to Fig. 1 and Fig. 2, fruit on the spot fast precooling machine babinet 1 be rectangular planomural structure, filled using stainless sheet steel
Raising density thermal insulation material, including inner wall, outer wall and the thermal insulation material being clipped between inner wall outer wall, inner and outer wall are stainless steel
Plate plank, thermal insulation material are polystyrene foam plastics (EPS), and good heat insulating, box weight is light.Precooling is equipped in babinet 1
Room 11 and cool room 12.The bottom of babinet 1 is equipped with 4 wheels, and main screw lift facilitates field to carry less than 100 kilograms.
Referring to Fig. 3, refrigerating plant includes by the sequentially connected compressor 21 of pipeline, condenser 22, liquid storage cylinder 23 and steaming
Device 24 is sent out, compressor 21, condenser 22 and liquid storage cylinder 23 are arranged in cool room 12, there are enough spaces in cool room 12,
Convenient for heat dissipation.Evaporator 24 is arranged in fore-cooling room 11.
Condenser 22 uses air-cooled condenser, and it is forced-draft type finned tube to have condensing fin pipe 221, structural shape.
It is forced ventilation that evaporator 24, which selects air-cooler, including evaporation finned tube 241 and fan 242, evaporation 241 structural shape of finned tube,
Type finned tube, fan 242 is double fan, with fan forced heat-exchanging.
The present invention is relatively high due to requiring refrigerating speed, and the matching between refrigerating plant various pieces is than heavier
It wants.The compressor refrigerating capacity of compressor 21 is R, and the condenser heat rejection amount of condenser 22 is Qc, the condenser heat exchange of condenser 22
Amount is Qk, the evaporator heat exchange amount of evaporator 24 is Q0。
R=60nv ηv(i1-i2)/v1, Qc=60nv ηv(i3-i4)/v1, Q0=a0F0Δt0, Qk=akFkΔtk, meet Q0>
R, Qk> Qc.Wherein n is compressor rotary speed, and v is the piston motion volume of compressor, ηvFor compressor volumetric efficiency, i1For evaporation
Device exports the enthalpy of refrigerant, i2For the enthalpy of evaporator inlet refrigerant, i3To compress the enthalpy of end of a period refrigerant, i4Go out for condenser
The enthalpy of mouth refrigerant, v1For compressor air suction mouth refrigerant specific volume, a0For to evaporate the surface heat exchanging system in terms of finned tube heat dissipation area
Number, F0To evaporate the heat dissipation area of finned tube, Δ t0For the heat transfer temperature difference of evaporator, akFor in terms of condensing fin pipe heat dissipation area
Surface film thermal conductance, FkFor the heat dissipation area of condensing fin pipe, Δ tkFor the heat transfer temperature difference of condenser.
In the present embodiment, Danfoss 5/8HP totally-enclosed compressors are selected to make refrigeration source, the piston motion volume of compressor
V=18cm3/ r, compressor volume efficiency etav=0.75.Refrigerating plant uses R22 refrigerants, setting evaporating temperature t0=-10 DEG C,
Compressor air suction mouth temperature t1=0 DEG C, condensation temperature tk=36 DEG C, the thermodynamic property table for looking into refrigerant R22 obtains:t0=-10 DEG C,
P0=0.356MPa, i1=621.6kj/kg, i2=407.2kj/kg, v1=69.51 × 10-3m3/ kg, tk=36 DEG C, Pk=
1.40MPa i3=636.5kj/kg, i4=418.7kj/kg.When compressor rotary speed is n=2880r/min,
R=60nv ηv(i1-i2)/v1=7195.3kj/h=2000w,
Qc=60nv ηv(i3-i4)/v1=7309.4kj/h=2030.3w.
Evaporator is air-cooler DE-1.4/5.0, evaporation finned tube heat dissipation area F0=5.0m2, a0=75W/m2.k, it takes
Δt0When=10, Q0=a0F0Δt0=3750W > R.
Condenser is air-cooled condenser FNH-2.0/7.0, condensing fin pipe heat dissipation area Fk=7.0m2, a0=75W/
m2.k, Δ t is takenkWhen=6, Qk=akFkΔtk=3150W > Qc。
Dehumidification device is being steamed using electricity-heated defrosting, Auto-drainage, including electric heater and drain valve 3, electric heater setting
Send out finned tube side, bottom of the drain valve 3 in fore-cooling room 11.Its course of work is carried out by the program set, and refrigerating plant opens
Dynamic, 24 surface frosting of evaporator starts electric heater, and 24 surface frosting of evaporator is quickly after dissolving, automatically open drain valve 3 into
Row draining.Dehumidification device uses refrigeration principle, by the refrigeration system of precooler, is completed by electricity-heated defrosting, Auto-drainage.
The bottom in fore-cooling room 11 is arranged in sterilizing unit 4, can be plasma generator or ozone sterilizer.Sterilizing unit
4 be individual components, can be according to berry variety adoption.
Control system controls refrigerating plant, dehumidification device and sterilizing unit, is controlled using PLC program, operating surface
Plate is color touch screen, easy to operate intuitive.Control system can be manual or automatically controls refrigeration temperature and defrosting temperature.When manual
Forced refrigeration is started or stoped by touch screen, and can real-time display cryogenic temperature and defrosting temperature on the touchscreen.When automatic
Cryogenic temperature and its positive and negative deviation, cooling time, defrosting temperature, defrosting time are set by touch screen, is then turned on automatic pre-
It is cold.
Refrigerating speed of the present invention is fast, has dehumidifying and sterilizing function, can effectively maintain the Post-harvest quality of berry, complete machine weight
Amount is light, and field is facilitated to carry.
Claims (4)
1. a kind of fruit fast precooling machine on the spot, which is characterized in that including babinet, refrigerating plant, dehumidification device, control device and
Sterilizing unit, babinet is interior to be equipped with fore-cooling room and cool room, and refrigerating plant includes by the sequentially connected compressor of pipeline, condensation
Device, liquid storage cylinder and evaporator, compressor, condenser and liquid storage cylinder are arranged in cool room, and evaporator is arranged in fore-cooling room, steam
It includes evaporation finned tube and fan to send out device, and dehumidification device includes electric heater and drain valve, and electric heater is arranged in the evaporation
Finned tube side, drain valve are arranged in the bottom of fore-cooling room, sterilizing unit in the fore-cooling room.
2. fruit according to claim 1 fast precooling machine on the spot, which is characterized in that the condenser is air-cooled condensation
Device has condensing fin pipe, R=60nv ηv(i1-i2)/v1, Qc=60nv ηv(i3-i4)/v1, Q0=a0F0Δt0, Qk=akFkΔ
tk, meet Q0> R, Qk> Qc, wherein R is the compressor refrigerating capacity of the compressor, QcFor the condenser heat rejection of the condenser
Amount, Q0For the evaporator heat exchange amount of the evaporator, QkFor the condenser heat exchange amount of the condenser, n is compressor rotary speed, and v is
The piston motion volume of compressor, ηvFor compressor volumetric efficiency, i1For the enthalpy of evaporator outlet refrigerant, i2Enter for evaporator
The enthalpy of mouth refrigerant, i3To compress the enthalpy of end of a period refrigerant, i4For the enthalpy of condensator outlet refrigerant, v1For compressor air suction mouth
Refrigerant specific volume, a0For to evaporate the surface film thermal conductance in terms of finned tube heat dissipation area, F0To evaporate the heat dissipation area of finned tube,
Δt0For the heat transfer temperature difference of evaporator, akFor the surface film thermal conductance in terms of condensing fin pipe heat dissipation area, FkFor condensing fin pipe
Heat dissipation area, Δ tkFor the heat transfer temperature difference of condenser.
3. fruit according to claim 2 fast precooling machine on the spot, which is characterized in that the sterilizing unit is plasma hair
Raw device or ozone sterilizer.
4. fruit according to claim 3 fast precooling machine on the spot, which is characterized in that the babinet includes inner wall, outer wall
And the thermal insulation material being clipped between inner wall outer wall, the bottom of babinet are equipped with multiple wheels.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297087.1A CN108684812A (en) | 2017-08-12 | 2018-04-04 | A kind of fruit fast precooling machine on the spot |
| PCT/CN2019/078613 WO2019192314A1 (en) | 2017-08-12 | 2019-03-19 | Machine for on-site rapid pre-cooling of fruit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710689840 | 2017-08-12 | ||
| CN2017106898407 | 2017-08-12 | ||
| CN201810297087.1A CN108684812A (en) | 2017-08-12 | 2018-04-04 | A kind of fruit fast precooling machine on the spot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108684812A true CN108684812A (en) | 2018-10-23 |
Family
ID=63845410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810297087.1A Pending CN108684812A (en) | 2017-08-12 | 2018-04-04 | A kind of fruit fast precooling machine on the spot |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108684812A (en) |
| WO (1) | WO2019192314A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109964999A (en) * | 2019-04-18 | 2019-07-05 | 李臻 | A kind of fresh-keeping integrated apparatus of the pre- cold air drying of oversleeve type suitable for edge of a field stone fruit postharvest handling machine |
| WO2019192314A1 (en) * | 2017-08-12 | 2019-10-10 | 浙江省农业科学院 | Machine for on-site rapid pre-cooling of fruit |
| CN112129021A (en) * | 2020-10-14 | 2020-12-25 | 紫云自治县天赐农林发展有限公司 | Blueberry refrigerating device |
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| CN2370687Y (en) * | 1999-01-19 | 2000-03-29 | 中农科技开发公司 | Mobile device for precooling and cold-storage, and freshness-keeping of fruit and vegetable |
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| JP2007212115A (en) * | 2006-01-13 | 2007-08-23 | Mitsubishi Electric Corp | Dehumidification machine and its control method |
| CN101644503A (en) * | 2009-09-10 | 2010-02-10 | 烟台冰轮股份有限公司 | Vegetable precooling and refrigerating device |
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| CN105685206A (en) * | 2016-02-04 | 2016-06-22 | 王宏峰 | Fast precooling and purification and residue removing system for fruits and fruit products and application of fast precooling and purification and residue removing system |
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| CN108684812A (en) * | 2017-08-12 | 2018-10-23 | 浙江省农业科学院 | A kind of fruit fast precooling machine on the spot |
| CN109237650A (en) * | 2018-10-24 | 2019-01-18 | 山西新华化工有限责任公司 | Multi-functional cooled dehumidifier unit |
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| JPH01142357A (en) * | 1987-11-30 | 1989-06-05 | Toshiba Corp | Air-conditioner |
| CN2370687Y (en) * | 1999-01-19 | 2000-03-29 | 中农科技开发公司 | Mobile device for precooling and cold-storage, and freshness-keeping of fruit and vegetable |
| JP2004028460A (en) * | 2002-06-26 | 2004-01-29 | Denso Corp | Vapor compression type refrigerator |
| JP2007212115A (en) * | 2006-01-13 | 2007-08-23 | Mitsubishi Electric Corp | Dehumidification machine and its control method |
| CN101644503A (en) * | 2009-09-10 | 2010-02-10 | 烟台冰轮股份有限公司 | Vegetable precooling and refrigerating device |
| CN202184088U (en) * | 2011-07-15 | 2012-04-11 | 北京市农林科学院 | Integrated fruit and vegetable differential pressure precooling storage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019192314A1 (en) * | 2017-08-12 | 2019-10-10 | 浙江省农业科学院 | Machine for on-site rapid pre-cooling of fruit |
| CN109964999A (en) * | 2019-04-18 | 2019-07-05 | 李臻 | A kind of fresh-keeping integrated apparatus of the pre- cold air drying of oversleeve type suitable for edge of a field stone fruit postharvest handling machine |
| CN112129021A (en) * | 2020-10-14 | 2020-12-25 | 紫云自治县天赐农林发展有限公司 | Blueberry refrigerating device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019192314A1 (en) | 2019-10-10 |
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