CN108895749A - A kind of air-cooled water cooling twin-stage chilldown system and its working method - Google Patents

A kind of air-cooled water cooling twin-stage chilldown system and its working method Download PDF

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Publication number
CN108895749A
CN108895749A CN201810978601.8A CN201810978601A CN108895749A CN 108895749 A CN108895749 A CN 108895749A CN 201810978601 A CN201810978601 A CN 201810978601A CN 108895749 A CN108895749 A CN 108895749A
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China
Prior art keywords
water
air
cooled
cooling
area
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CN201810978601.8A
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Chinese (zh)
Inventor
王宝刚
李文生
王云香
常虹
周家华
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Beijing Forestry Fruit Science Research Institute
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Beijing Forestry Fruit Science Research Institute
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Priority to CN201810978601.8A priority Critical patent/CN108895749A/en
Publication of CN108895749A publication Critical patent/CN108895749A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/20Auxiliary treatments, e.g. aerating, heating, humidifying, deaerating, cooling, de-watering or drying, during loading or unloading; Loading or unloading in a fluid medium other than air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D1/00Devices using naturally cold air or cold water

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

The present invention relates to the Cold Chain Logistics places of production, and technical field is pre-chilled, and discloses a kind of air-cooled water cooling twin-stage chilldown system and its working method, which is characterized in that including:Water cooling area, air-cooled area, air-cooler, pre- cold water reservoir, refrigeration unit and transport device, water cooling area is connect with air-cooled area by transport device, air-cooler is connected to air-cooled area, spray equipment is equipped in water cooling area, refrigeration unit is connect with pre- cold water reservoir, pre- cold water reservoir is connect with spray equipment, and material inlet is arranged in water cooling area;Material outlet is arranged in air-cooled area.The present invention integrates air-cooled and water cooling function;The present invention has precooling end-temperature low, and precooling speed is fast, and agricultural product are not perishable, consumes energy low, moves, flexible, easy to operate advantage, and the place of production suitable for agricultural product such as fruits and vegetables is pre-chilled.

Description

A kind of air-cooled water cooling twin-stage chilldown system and its working method
Technical field
The present invention relates to the Cold Chain Logistics places of production, and technical field is pre-chilled, more particularly to a kind of air-cooled water cooling twin-stage chilldown system And its working method.
Background technique
Implementing Cold Chain Logistics is to guarantee the perishable complete important measures of quality of agricultural product, and produced during Cold Chain Logistics Ground precooling treatment is the postharvest handling technology of most critical.It can exclude the field heat of agricultural product rapidly by using precooling treatment, Respiratory metabolism intensity is reduced, loss of water is mitigated and inhibits pathogen infection, delays agricultural product ripening and senscence process, and then keep Product quality.The mode of precooling treatment mainly includes cold wind pre-cooling, Hydro pre-cooling, vacuum pre-cooling etc..Cold wind pre-cooling includes common Freezer pre-cooling and forced ventilation pre-cooling (including differential pressure precooling);Hydro pre-cooling includes Hydro pre-cooling and ice water pre-cooling.China at present Most of perishable agricultural product pre-coolings are mainly pre-chilled using common freezer, such as apple, pears, grape, citrus, vegetables, meat products, Common freezer has the advantages that precooling treatment amount is big, but the disadvantage is that precooling speed is slow, generally requiring 24-48 hours could be pre-chilled To predetermined temperature.It is very fast that (such as differential pressure precooling) precooling speed is pre-chilled in forced ventilation, but product dehydration loss is be easy to cause to aggravate, more Suitable for vegetable precooling, and need to realize precooling treatment process by freezer.It is pre- that Hydro pre-cooling speed is better than forced ventilation It is cold, but applicability is limited, is suitable for hard fruit, fruit and vegetable, as strawberry, raspberry are less applicable in.In recent years, with agricultural product electric business The development of logistics, it is higher and higher to the rate request of place of production pre-cooling, it is desirable that the shortest time realizes the pre-cooling of product.Cope with this city Field demand, the exploitation of the pre- refrigeration technique of water receive significant attention.General large-scale water precooling treatment system is suitable for large-scale agricultural production Product preliminary working enterprise, product stream flux is big, and day output demand is larger.But current agricultural products in China is sold or with middle-size and small-size Based on production scale, casual household manage, it is therefore desirable to develop some small-sized place of production water pre-coolers, can flexibly move, be applicable in In various home environments.There are the skills such as energy conservation, water circulation use, product residue moisture removal during simple water precooling treatment Art problem solves the problems such as these bad technical problems will cause water resource waste, energy consumption, product to rot to aggravate, therefore, it is necessary to These negative effects are solved, realize that energy-efficient, economy is guaranteed the quality.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of air-cooled water cooling twin-stage chilldown systems, solve at the pre-cooling of prior art Cold Chain Logistics The energy consumption generated in reason is high, precooling effect is poor and the perishable problem of agricultural product.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of air-cooled water cooling twin-stage chilldown systems, including:Water cooling area, Air-cooled area, air-cooler, pre- cold water reservoir, refrigeration unit and transport device, the water cooling area and the air-cooled area pass through described Transport device connection, the air-cooler are connected to the air-cooled area, and spray equipment, the refrigeration unit are equipped in the water cooling area It is connect with the pre- cold water reservoir, the pre- cold water reservoir is connect with the spray equipment, and material is arranged in the water cooling area Entrance;Material outlet is arranged in the air-cooled area.
It wherein, further include recirculated water reservoir and water-collecting tray, the water-collecting tray is set to the water cooling area and the air-cooled area Bottom, and connect with the recirculated water reservoir, the recirculated water reservoir is connected to the pre- cold water reservoir.
It wherein, further include strainer and purifier, the strainer is set in the recirculated water reservoir, and closes on the collection At the collector nozzle of water pond, the purifier is set between the recirculated water reservoir and the pre- cold water reservoir.
Wherein, the spray equipment includes upper hose, spray tube, distribution water pipe and spray head, described upper hose one end with The pre- cold water reservoir connection, the other end are connect with total end of the distribution water pipe, the branch end of the distribution water pipe It is connect with the spray tube, the spray tube is equipped with spray head.
Wherein, the spray tube is multiple, and the spray head is multiple.
It wherein, further include cooling coil, the cooling coil is set to inside the pre- cold water reservoir, the refrigeration unit It is connect with the pre- cold water reservoir by the cooling coil.
Wherein, the transport device is roll shaft.
Invention additionally discloses a kind of air-cooled water cooling twin-stages, and working method is pre-chilled, including:
Material is entered by material inlet, and is piled up in water cooling area;
Refrigeration unit is cooling by the water in pre- cold water reservoir;
Cooling water in pre- cold water reservoir is sent into spray equipment, the material in water cooling area is sprayed, carries out water cooling Pre-cooling;
After the water cooled pre-cooling of material, transport device is by material transportation to air-cooled area;
Air-cooled pre-cooling is carried out to the material in air-cooled area;
After the air-cooled pre-cooling of material, transport device is by material transportation to material outlet.
Wherein, further include recirculated water reservoir and water-collecting tray, returned the shower water in water cooling area and air-cooled area using water-collecting tray It accepts, and is passed through into recirculated water reservoir, be finally passed through in pre- cold water reservoir.
Wherein, further include strainer and purifier, the shower water that water-collecting tray is collected into is followed by being passed through after strainer filtering In ring water reservoir, by purifier, finally it is passed through in pre- cold water reservoir.
(3) beneficial effect
A kind of air-cooled water cooling twin-stage chilldown system provided by the invention and its working method, integrate air-cooled and water cooling function, It not only can be carried out Hydro pre-cooling, moreover it is possible to carry out cold wind pre-cooling, while using cold wind pre-cooling removal as caused by Hydro pre-cooling Product surface water residual, reduces rotting rate, keeps product quality;In addition, the precooling end-temperature of product is usually only when being pre-chilled using water 5 degree or so can be reached, will not be reduced again, and continue that precooling end-temperature can be reduced using air-cooled processing.The present invention has pre-cooling eventually Temperature is low, and precooling speed is fast, and agricultural product are not perishable, consumes energy low, moves, and flexible, easy to operate advantage is suitable for fruit The place of production of the agricultural product such as vegetable is pre-chilled.
Detailed description of the invention
Fig. 1 is a kind of main view of air-cooled water cooling twin-stage chilldown system of the present invention;
Fig. 2 is a kind of rearview of air-cooled water cooling twin-stage chilldown system of the present invention;
Fig. 3 is a kind of top view of air-cooled water cooling twin-stage chilldown system of the present invention;
Fig. 4 is a kind of left view of air-cooled water cooling twin-stage chilldown system of the present invention.
In figure, 1, water cooling area;2, air-cooled area;3, air-cooler;4, pre- cold water reservoir;5, refrigeration unit;6, it pumps;7, it transports Device;8, PLC electrical control mechanism;91, upper hose;92, spray tube;93, water pipe is distributed;94, spray head;10, recirculated water reservoir; 11, water-collecting tray;12, strainer;13, purifier;14, cooling coil.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.
As Figure 1-Figure 4, the present invention discloses a kind of air-cooled water cooling twin-stage chilldown system, including:Water cooling area 1, air-cooled area 2, air-cooler 3, pre- cold water reservoir 4, refrigeration unit 5 and transport device 7, the water cooling area 1 pass through described with the air-cooled area 2 Transport device 7 connects, and the air-cooler 3 is connected to the air-cooled area 2, is equipped with spray equipment, the refrigeration in the water cooling area 1 Unit 5 is connect with the pre- cold water reservoir 4, and the pre- cold water reservoir 4 is connect with the spray equipment, the water cooling area 1 Material inlet is set;Material outlet is arranged in the air-cooled area 2.
Specifically, pre- cold water reservoir 4 can be arranged in above water cooling area, spray is passed through by the self gravity of cooling water Device sprays material, or pump is arranged in pre- cold water reservoir 4, and cooling water therein is pumped into spray by pump 6 In shower device, then sprayed.The present invention can be used electrical control mechanism and control, it is preferable that the progress of PLC electrical control mechanism can be used Whole control, specifically, PLC electrical control mechanism 8 is communicated with the refrigeration unit 5, air-cooler 3, pump 6 and transport device 7 respectively Connection, is controlled.
Specifically, water cooling area 1 and air-cooled area 2 are separated using isolation curtain, the double door that material is opened up from water cooling area enters, Pile up in water cooling area, by PLC electrical control mechanism 8 control carry out water cooling pre-cooling, into cross water cooling pre-cooling after, into air-cooled area 2 into The air-cooled pre-cooling of row, the double door finally opened up from air-cooled area 2 are sent out.It is next when material carries out air-cooled pre-cooling in air-cooled area 2 Batch materials can enter water cooling area 1 and carry out water cooling pre-cooling, accelerate treatment effeciency.
It wherein, further include recirculated water reservoir 10 and water-collecting tray 11, the water-collecting tray 11 is set to the water cooling area 1 and described The bottom in air-cooled area 2, and connect with the recirculated water reservoir 10, the recirculated water reservoir 10 and the pre- cold water reservoir 4 connections.The shower water that water-collecting tray 11 is collected into is stored in recirculated water reservoir 10, and shower water is passed through again to pre- cold water It is recycled in reservoir 4, realizes recycling for water, economical environment-protective.It preferably, further include strainer 12 and purifier 13, The strainer 12 is set in the recirculated water reservoir 10, and is closed at the collector nozzle of the water-collecting tray 11, the purifier 13 are set between the recirculated water reservoir 10 and the pre- cold water reservoir 4.The shower water being collected into is passed through into strainer first 12 are filtered removing large granular impurity, are carried out further only before being passed through to pre- cold water reservoir 4 using purifier 13 Change, guarantees the cleaning of recirculated water, it is recycling.
Wherein, the spray equipment includes upper hose 91, spray tube 92, distribution water pipe 93 and spray head 94, the upper water 91 one end of pipe is connect with the pre- cold water reservoir 4, and the other end is connect with total end of the distribution water pipe 93, the distribution water The branch end of pipe 93 is connect with the spray tube 92, and the spray tube 92 is equipped with spray head 94.In pre- cold water reservoir 4 Cooling water is driven using pump 6, sequentially enters upper hose 91, distribution water pipe 93 and spray tube 92, cooling water passes through spray tube Spray head 94 on 92 sprays on material, realizes the water cooling pre-cooling of material.Preferably, the spray tube 92 is multiple, described Spray head 94 is multiple.Specifically, the number of spray tube 92 is 8, the branch end of corresponding distribution water pipe 93 is also 8 It is a, there are 4 spray heads on each spray tube 92.Further, if cooling water is pumped into spray equipment using pump 6, 91 one end of upper hose need to be connect with pump 6, and the other end is connect with total end of distribution water pipe 93.
It wherein, further include cooling coil 14, the cooling coil 14 is set to inside the pre- cold water reservoir 4, the system Cold group 5 is connect with the pre- cold water reservoir 4 by the cooling coil 14.The cooling capacity of refrigeration unit 5 is passed through into cooling row Pipe 14 passes to pre- cold water reservoir 4, cooling to cooling water.
Wherein, the transport device 7 is roll shaft.Specifically, or other transport devices, such as conveyer belt etc..
Invention additionally discloses a kind of air-cooled water cooling twin-stages, and working method is pre-chilled, which is characterized in that including:
Material is entered by material inlet, and is piled up in water cooling area;
Refrigeration unit is cooling by the water in pre- cold water reservoir;
Cooling water in pre- cold water reservoir is sent into spray equipment, the material in water cooling area is sprayed, carries out water cooling Pre-cooling;
After the water cooled pre-cooling of material, transport device is by material transportation to air-cooled area;
Air-cooled pre-cooling is carried out to the material in air-cooled area;
After the air-cooled pre-cooling of material, transport device is by material transportation to material outlet.
Specifically, cooling water can be transported by gravity or be transported using pump, electrical control mechanism is can be used in the above control It is controlled, such as PLC electrical control mechanism etc..
Wherein, further include recirculated water reservoir and water-collecting tray, returned the shower water in water cooling area and air-cooled area using water-collecting tray It accepts, and is passed through into recirculated water reservoir, be finally passed through in pre- cold water reservoir.
Wherein, further include strainer and purifier, the shower water that water-collecting tray is collected into is followed by being passed through after strainer filtering In ring water reservoir, by purifier, finally it is passed through in pre- cold water reservoir.
A kind of air-cooled water cooling twin-stage chilldown system provided by the invention and its working method, integrate air-cooled and water cooling function, It not only can be carried out Hydro pre-cooling, moreover it is possible to carry out cold wind pre-cooling, while using cold wind pre-cooling removal as caused by Hydro pre-cooling Product surface water residual, reduces rotting rate, keeps product quality;In addition, the precooling end-temperature of product is usually only when being pre-chilled using water 5 degree or so can be reached, will not be reduced again, and continue that precooling end-temperature can be reduced using air-cooled processing.The present invention has pre-cooling eventually Temperature is low, and precooling speed is fast, and agricultural product are not perishable, consumes energy low, moves, and flexible, easy to operate advantage is suitable for fruit The place of production of the agricultural product such as vegetable is pre-chilled;Cooling water circulation use, economical environment-protective.
Embodiment 1:
Precooling treatment is carried out to cherry using air-cooled water cooling twin-stage chilldown system and its working method of the invention.
1. material:
Cherry, kind is red light, commercially available, and 8 is mature, 30 DEG C of fruit temperature.
2. processing method:
In the porous plastics pallet that first cherry fruit is loaded on, thickness about 5cm is loaded.It is as follows that operating procedure is pre-chilled:
Step 1:The water filling port of pre- cold water reservoir is first opened, injection tap water to pre- 2/3 position of cold water reservoir is added For disinfectant.
Step 2:Open system general supply opens refrigeration system interface, set water temperature by PLC electrical control mechanism control panel It is 0 DEG C, is then turned on refrigeration switch, using refrigeration unit starts that pre- cold water reservoir water is pre-chilled.
Step 3:When pre- cold water reservoir water temperature is down to 0-1 DEG C of range, the cherry of porous plastics pallet will be previously charged into (filling thickness about 5cm), is piled up in water cooling area.Pallet or so and top are at a distance from spray head holding about 20-30cm.By temperature Sensor probe is inserted into different parts fruit.Finally close pre-cooling zone door.
Step 4:Spray equipment interface is opened by PLC electrical control mechanism control panel, opens spray switch, it will be cold using pump But water is pumped into spray equipment, carries out water precooling treatment.
Step 5:Temperature display interface is opened by PLC electrical control mechanism control panel, different parts temperature biography can be observed The temperature display of sensor is opened air cooling system by PLC electrical control mechanism control panel, is opened cold when temperature drops to 10 DEG C The air-cooled switch of blower, and it is set as 0 DEG C, air-cooled area is cooled to target temperature in advance in advance.
Step 6:Temperature display interface is opened by PLC electrical control mechanism control panel, when temperature drops to 5 DEG C, is closed Spray switch, and open water cooling and it is air-cooled between isolation curtain, pass through the transmission button of PLC electrical control mechanism control panel, utilize The pallet for filling fruit is conveyed into air-cooled area by transport device, when fruit surface is without obvious bright water residual, closes air-cooled system System takes out fruit, carries out subsequent packages processing.
Step 7:Next group inferior fruit can be sent into water pre-cooling zone and carry out subsequent cycle when present lot fruit enters air-cooled area Pre-cooling.
Step 8:When all pre-cooling work is completed, water cooling and air cooling system are closed, general supply is closed, by pre- cold water water storage Chi Zhongshui discharge, and clean cycle water reservoir, pre- cold water reservoir and water-collecting tray.
3. result is pre-chilled:
When being pre-chilled using the present apparatus, cherry fruit temperature can be dropped to 5 DEG C by 30 DEG C in 55min, greatlyd improve Pre- cold efficiency.
Embodiment 2:
Tomato precooling treatment is carried out using air-cooled water cooling twin-stage chilldown system of the invention and its working method:
1. material:
Tomato, kind is celestial visitor, commercially available, and 8 is mature, 36 DEG C of fruit temperature.
2. processing method:
In the plastic crate that first tamato fruit is loaded on, every basket of about 20kg.It is as follows that operating procedure is pre-chilled:
Step 1:The water filling port of pre- cold water reservoir is first opened, injection tap water to pre- 2/3 position of cold water reservoir is added For disinfectant.
Step 2:Open system general supply opens refrigeration system interface, set water temperature by PLC electrical control mechanism control panel It is 0 DEG C, is then turned on refrigeration switch, using refrigeration unit starts that pre- cold water reservoir water is pre-chilled.
Step 3:When pre- cold water reservoir water temperature is down to 0-1 DEG C of range, the plastic crate equipped with tomato is piled up in water cooling Area.Stacking or so and top are at a distance from spray head holding about 20-30cm.Temperature sensor probe is inserted into different parts fruit In.Finally close pre-cooling zone door.
Step 4:Spray equipment interface is opened by PLC electrical control mechanism control panel, opens spray switch, it will be cold using pump But water is pumped into spray equipment, carries out water precooling treatment.
Step 5:Temperature display interface is opened by PLC electrical control mechanism control panel, different parts temperature biography can be observed The temperature display of sensor is opened air cooling system by PLC electrical control mechanism control panel, is opened cold when temperature drops to 15 DEG C The air-cooled switch of blower, and it is set as 0 DEG C, air-cooled area is cooled to target temperature in advance in advance.
Step 6:Temperature display interface is opened by PLC electrical control mechanism control panel, when temperature drops to 10 DEG C, is closed Spray switch, and open water cooling and it is air-cooled between isolation curtain, pass through the transmission button of PLC electrical control mechanism control panel, utilize The plastic crate for filling tamato fruit is conveyed into air-cooled area by transport device, when fruit surface is without obvious bright water residual, is closed Air cooling system takes out fruit, carries out subsequent packages processing.
Step 7:Next group inferior fruit can be sent into water pre-cooling zone and carry out subsequent cycle when present lot fruit enters air-cooled area Pre-cooling.
Step 8:When all pre-cooling work is completed, water cooling and air cooling system are closed, general supply is closed, by pre- cold water water storage Chi Zhongshui discharge, and clean cycle water reservoir, pre- cold water reservoir and water-collecting tray.
3. result is pre-chilled:
When being pre-chilled using the present apparatus, tamato fruit temperature can be dropped to 10 DEG C by 36 DEG C in 55min, greatlyd improve Pre- cold efficiency.
Embodiment 3:
Watermelon precooling treatment is carried out using pre-cooler of the invention:
1. material
Watermelon, kind is kylin, commercially available, and 8 is mature, 35 DEG C of fruit temperature.
2. processing method
In the plastic crate that first Watermelon Fruit is loaded on, every basket of about 20kg.It is as follows that operating procedure is pre-chilled:
Step 1:The water filling port of pre- cold water reservoir is first opened, injection tap water to pre- 2/3 position of cold water reservoir is added For disinfectant.
Step 2:Open system general supply opens refrigeration system interface, set water temperature by PLC electrical control mechanism control panel It is 0 DEG C, is then turned on refrigeration switch, using refrigeration unit starts that water storage water is pre-chilled.
Step 3:When pre- cold water reservoir water temperature is down to 0-1 DEG C of range, the plastic crate equipped with watermelon is piled up in water cooling Area.Stacking or so and top are at a distance from spray head holding about 20-30cm.Temperature sensor probe is inserted into different parts fruit In.Finally close pre-cooling zone door.
Step 4:Spray equipment interface is opened by PLC electrical control mechanism control panel, opens spray switch, it will be cold using pump But water is pumped into spray equipment, carries out water precooling treatment.
Step 5:Temperature display interface is opened by PLC electrical control mechanism control panel, different parts temperature biography can be observed The temperature display of sensor is opened air cooling system by PLC electrical control mechanism control panel, is opened cold when temperature drops to 20 DEG C The air-cooled switch of blower, and it is set as 0 DEG C, air-cooled area is cooled to target temperature in advance in advance.
Step 6:Temperature display interface is opened by PLC electrical control mechanism control panel, when temperature drops to 15 DEG C, is closed Spray switch, and open water cooling and it is air-cooled between isolation curtain, pass through the transmission button of PLC electrical control mechanism control panel, utilize The plastic crate for filling Watermelon Fruit is conveyed into air-cooled area by transport device, when fruit surface is without obvious bright water residual, is closed Air cooling system takes out fruit, carries out subsequent packages processing.
Step 7:Next group inferior fruit can be sent into water pre-cooling zone and carry out subsequent cycle when present lot fruit enters air-cooled area Pre-cooling.
Step 8:When all pre-cooling work is completed, water cooling and air cooling system are closed, general supply is closed, by pre- cold water water storage Chi Zhongshui discharge, and clean cycle water reservoir, pre- cold water reservoir and water-collecting tray.
3. result is pre-chilled
When being pre-chilled using the present apparatus, Watermelon Fruit temperature can be dropped to 15 DEG C by 35 DEG C in 260min, greatly mentioned High pre- cold efficiency.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of air-cooled water cooling twin-stage chilldown system, which is characterized in that including:Water cooling area, air-cooled area, air-cooler, pre- cold water store Pond, refrigeration unit and transport device, the water cooling area are connect with the air-cooled area by the transport device, the air-cooler It being connected to the air-cooled area, spray equipment is equipped in the water cooling area, the refrigeration unit is connect with the pre- cold water reservoir, The pre- cold water reservoir is connect with the spray equipment, and material inlet is arranged in the water cooling area;Material is arranged in the air-cooled area Outlet.
2. air-cooled water cooling twin-stage chilldown system as described in claim 1, which is characterized in that further include recirculated water reservoir sum aggregate Water pond, the water-collecting tray are set to the bottom in the water cooling area and the air-cooled area, and connect with the recirculated water reservoir, described Recirculated water reservoir is connected to the pre- cold water reservoir.
3. air-cooled water cooling twin-stage chilldown system as claimed in claim 2, which is characterized in that it further include strainer and purifier, The strainer is set in the recirculated water reservoir, and is closed at the collector nozzle of the water-collecting tray, and the purifier is set to institute It states between recirculated water reservoir and the pre- cold water reservoir.
4. air-cooled water cooling twin-stage chilldown system as described in claim 1, which is characterized in that the spray equipment includes upper water Pipe, spray tube, distribution water pipe and spray head, described upper hose one end connect with the pre- cold water reservoir, the other end with it is described Total end connection of water pipe is distributed, the branch end of the distribution water pipe is connect with the spray tube, and the spray tube is equipped with Spray head.
5. air-cooled water cooling twin-stage chilldown system as claimed in claim 4, which is characterized in that the spray tube be it is multiple, it is described Spray head is multiple.
6. air-cooled water cooling twin-stage chilldown system as described in claim 1, which is characterized in that it further include cooling coil, it is described cold But comb is set to inside the pre- cold water reservoir, and the refrigeration unit and the pre- cold water reservoir pass through the cooling coil Connection.
7. air-cooled water cooling twin-stage chilldown system as described in claim 1, which is characterized in that the transport device includes roll shaft.
8. working method is pre-chilled in a kind of air-cooled water cooling twin-stage, which is characterized in that including:
Material is entered by material inlet, and is piled up in water cooling area;
Refrigeration unit is cooling by the water in pre- cold water reservoir;
Cooling water in pre- cold water reservoir is sent into spray equipment, the material in water cooling area is sprayed, carries out water cooling pre-cooling;
After the water cooled pre-cooling of material, transport device is by material transportation to air-cooled area;
Air-cooled pre-cooling is carried out to the material in air-cooled area;
After the air-cooled pre-cooling of material, transport device is by material transportation to material outlet.
9. working method is pre-chilled in air-cooled water cooling twin-stage as claimed in claim 8, which is characterized in that further include recirculated water reservoir And water-collecting tray, the recycling of the shower water in water cooling area and air-cooled area is got up using water-collecting tray, and is passed through into recirculated water reservoir, most After be passed through in pre- cold water reservoir.
10. working method is pre-chilled in air-cooled water cooling twin-stage as claimed in claim 9, which is characterized in that further include strainer and water purification Device is passed through in recirculated water reservoir, through under recirculated water reservoir after the shower water that water-collecting tray is collected into is passed through strainer filtering The water of mouth of a river discharge passes through purifier, is finally passed through in pre- cold water reservoir.
CN201810978601.8A 2018-08-27 2018-08-27 A kind of air-cooled water cooling twin-stage chilldown system and its working method Pending CN108895749A (en)

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