CN103141570B - Grain drying cooler - Google Patents
Grain drying cooler Download PDFInfo
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- CN103141570B CN103141570B CN201310077691.0A CN201310077691A CN103141570B CN 103141570 B CN103141570 B CN 103141570B CN 201310077691 A CN201310077691 A CN 201310077691A CN 103141570 B CN103141570 B CN 103141570B
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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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
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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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Abstract
The invention discloses a grain drying cooler, which comprises a first drying cooling system, a second drying cooling system, a centrifugal fan and a condensed water recycling device, wherein the first drying cooling system is used for evaporating and drying moisture in grains and cooling and storing the grains; the second drying cooling system is used for evaporating and drying the moisture in the grains and cooling and storing the grains; the centrifugal fan is used for outputting air quantity; and the condensed water recycling device is used for recycling condensed water. The grain drying cooler disclosed by the invention has the beneficial effects that by adopting uniform-temperature cooling and storage, a drying process can be shortened; energy can be saved; storage temperature of the grains can be regulated; temperature difference is reduced; the grains can be stored safely; cold storage can reduce self breathing of the grains so as to fulfill the aim of loss reduction and storage; proliferation of stored grain insects, mould and microorganisms can be restrained; moisture transfer, delamination and condensation can be prevented or eliminated; peculiar smell in grain stacks can be removed; safety of the grains is ensured; and good quality of the grains is guaranteed.
Description
Technical field
The invention belongs to a kind of dry cooling device, relate in particular to the dry cooler of a kind of cereal for the dry cold storage of cereal.
Background technology
At present, cereal, after purchase, because moisture is too high, needs after evenly dry could put in storage, the man power and material of the link such as therefore increased turnover, transportation, be dried.
Cereal is in long-time storage process, due to the radiation of external heat, can cause cereal intensification heating, and country's promotion grain storage is wanted cryopreservation, can guarantee so the fresh and long storage time of cereal, traditional cooler supply air temperature difference is little, and cold air distribution can not be effectively provided the in the situation that of external high temperature, thereby can not effectively realize the object of low-temperature grain-storage.
Common being for the cooling cooler shortcoming of cereal on market: unit is large, energy consumption is high, cool time is long etc., and on market common for grain storage conventionally only have drying machine or cooler, lack the grain storage equipment can simultaneously with dry and refrigerating function.
Summary of the invention
The present invention is directed to the shortcoming of above-mentioned prior art, a kind of dry cooler of cereal of large temperature difference air-supply is provided, can be fast by the moisture evaporation drying in cereal and by cereal cold storage.
The present invention solves the technical scheme that its technical problem adopts:
This cereal is dried cooler, comprises for by the moisture evaporation drying of cereal and by the first dry cooling system of cereal cold storage, for by the moisture evaporation drying of cereal and by the second dry cooling system of cereal cold storage, the condensate water recovery device recycled for the centrifugal blower of discharge quantity of fan, for condensed water;
The first dry cooling system comprises the first-class heat exchanger that can be used for exporting hot blast and cold wind, the first fin condenser, between first-class heat exchanger and the first fin condenser, be connected with the first compressor for operating pressure is provided in turn, for the first fin regenerator of the backheat that dehumidifies, can change the first four-way change-over valve of the refrigerant direction of motion, for the first ball valve of switch maintenance, for the first hot defrosting magnetic valve of defrost, be used for deimpurity the first device for drying and filtering, for the first expansion valve of controlled pressure and adjust flux, on the first compressor, be connected with the first low-pressure meter in turn, the first high-low pressure switch, the first high pressure gauge, on the first fin regenerator, be connected with the first bypass solenoid valve, first-class heat exchanger is hydrophilic aluminium finned heat exchanger,
The second dry cooling system comprises the secondary heat exchanger that can be used for exporting hot blast and cold wind, the second fin condenser, between secondary heat exchanger and the second fin condenser, be connected with the vapour liquid separator for separating of refrigerant form in turn, for the second compressor of operating pressure is provided, for the second fin regenerator of the backheat that dehumidifies, can change the second four-way change-over valve of the refrigerant direction of motion, for the second ball valve of switch maintenance, for the pressure electromagnetic valve that unloads of regulating system operating pressure, for the second hot defrosting magnetic valve of defrost, be used for deimpurity the second device for drying and filtering, for the second expansion valve of controlled pressure and adjust flux, on the second compressor, be connected with the second low-pressure meter in turn, the second high-low pressure switch, the second high pressure gauge, on the second fin regenerator, be connected with the second bypass solenoid valve, secondary heat exchanger is hydrophilic aluminium finned heat exchanger,
On the first fin condenser and the second fin condenser, be all connected with the aerofoil fan for air quantity is provided;
On centrifugal blower, be connected with for detection of leaving air temp and the automatic frequency-variable controller of accurately controlling air quantity;
Condensate water recovery device includes the drip tray of condensation water collection and is used to condensed water that the water pump that sprays operating pressure is provided.
In grain storage, by the first dry cooling system and the second dry cooling system, cereal is dried with cooling, dry run is for heating process, and cooling procedure is process of refrigerastion, i.e. two heatings and two refrigeration systems.
When cereal need to be dry, what the first dry cooling system and the second dry cooling system carried out is to heat process, heating in process, the first dry cooling system and the second dry cooling system carry out hot blast output simultaneously, be that twin-stage heats output, the object that can realize large temperature difference high temperature air-supply, the hot blast of output can fully evaporate the moisture in cereal, realizes the object of dried grain.
When cereal needs are cooling, what the first dry cooling system and the second dry cooling system carried out is process of refrigerastion, in process of refrigerastion, the first dry cooling system and the second dry cooling system carry out cold wind output simultaneously, i.e. two refrigeration output, the object that can realize large temperature difference low-temperature air-supply, makes the abundant cold storage of cereal.
Unload pressure electromagnetic valve in the time that the too high operation of environment temperature heats; after the too high setup pressure value that exceedes high-voltage switch gear of condensing pressure; unload pressure electromagnetic valve and obtain electric-opening; after pressure drop being arrived in the differential pressure range of setting; unloading pressure electromagnetic valve dead electricity closes; release finishes, guaranteed the dry cooler of cereal can be because of high pressure escape stopping alarm.
The first hot defrosting magnetic valve is in the time that the too low operation of environment temperature heats, first-class heat exchanger there will be the phenomenon of frosting, the first hot defrosting magnetic valve is obtaining after first-class heat exchanger coil temperature probe signal obtaining electric-opening, a part of hot gas that exhaust outlet is discharged is directly delivered to the import department of first-class heat exchanger, frost in first-class heat exchanger is dissolved, play the effect of defrost, after first-class heat exchanger coil pipe probe temperature raises, the first hot defrosting magnetic valve dead electricity is closed, defrost finishes, in like manner, the second hot defrosting magnetic valve is in the time that the too low operation of environment temperature heats, secondary heat exchanger there will be the phenomenon of frosting, the second hot defrosting magnetic valve is obtaining after secondary heat exchanger coil temperature probe signal obtaining electric-opening, a part of hot gas that exhaust outlet is discharged is directly delivered to the import department of secondary heat exchanger, frost on secondary heat exchanger is dissolved, play the effect of defrost, after secondary heat exchanger coil pipe probe temperature raises, the second hot defrosting magnetic valve dead electricity is closed, defrost finishes, make the dry cooler of cereal can not affect because of frosting and heat dry effect.
The first low-pressure meter, the first high-low pressure switch, the first high pressure gauge are monitored the operating pressure of the first dry cooling system, and the first dry cooling system can be worked under normal operating pressure.
The second low-pressure meter, the second high-low pressure switch, the second high pressure gauge are monitored the operating pressure of the second dry cooling system, and the second dry cooling system can be worked under normal operating pressure.
Adopt condensate water recovery device, in the time of the dry large temperature-difference refrigerating of cooler of cereal, the condensed water that evaporation side produces reclaims by drip tray, being transported to fin condenser side by pump handle condensed water again sprays fin condenser, realize the object to fin condenser cooling, the dry cooler of cereal is operated under low condensation temperature, be not subject to Effect of Hyperthermic Environment, be beneficial to the power consumption that reduces unit, improve the operating efficiency of unit.
Adopt the first fin regenerator and the second fin regenerator both can improve the condition of work of the first compressor and the second compressor, can when needing dehumidifying, cereal heap dehumidify to cereal heap again, low leaving air temp is carried out to backheat, realize further effect on moisture extraction, realize humidity in grain storage controlled.
Adopt frequency-variable controller to connect centrifugal blower, the frequency that can change centrifugal blower by frequency-variable controller realizes automatic air quantity, to guarantee exporting stationary temperature under complicated or unsettled external environment, in order to guarantee the dry and cooling stability of cereal.
The first fin condenser and the second fin condenser are hydrophilic aluminium finned heat exchanger.
The first fin condenser and the second fin condenser all adopt hydrophilic aluminium finned heat exchanger can be convenient to condensed water landing from the fin of fin condenser.
Frequency-variable controller is provided with PLC man-machine interface.
Adopt PLC man-machine interface can make frequency-variable controller simple to operate, interface is more directly perceived.
The exit of the dry cooler of cereal is provided with for the dry temperature controlled temperature sensor of cooler of cereal.
Set temperature sensor can be controlled the leaving air temp of the dry cooler of cereal.
The effect that the present invention is useful is:
1. adopt samming cold storage, can increase the moisture scope of the cereal that puts in storage, the dry run before putting in storage can shorten, and can save the energy, can solve the cereal large problem of dry amount of putting in storage.
2. can regulate grain storage temperature, dwindle the temperature difference, guarantee grain storage safety, can make cereal store compared with high-moisture in the situation that, can slow down grain ageing speed, reach the object of antistaling storing.
3. cold storage can reduce self breathing of cereal, thereby reduces the loss of cereal dry, reaches the object of impairment storage.
4. the hyperplasia of storage pest, mould, microbial population be can suppress, dosage and stifling number of times within the storage cycle, reduced.
5. can prevent or eliminate water transport, layering, dewfall, can get rid of the peculiar smell in cereal heap, guarantee cereal safety, guarantee that grain quality is good.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the embodiment of the present invention;
Fig. 2 is the system block diagram of the embodiment of the present invention;
Fig. 3 is the schematic block diagram of embodiment of the present invention pressure work system;
Fig. 4 is the schematic block diagram of embodiment of the present invention control section.
Description of reference numerals: the first dry cooling system 1, the second dry cooling system 2, centrifugal blower 3, frequency-variable controller 3-1, PLC man-machine interface 3-2, condensate water recovery device 4, drip tray 4-1, water pump 4-2, aerofoil fan 5, temperature sensor 6, first-class heat exchanger 10, the first compressor 11, the first low-pressure meter 11-1, the first high-low pressure switch 11-2, the first high pressure gauge 11-3, the first fin regenerator 12, the first bypass solenoid valve 12-1, the first four-way change-over valve 13, the first ball valve 14, the first hot defrosting magnetic valve 15, the first device for drying and filtering 16, the first expansion valve 17, secondary heat exchanger 20, vapour liquid separator 21, the second compressor 22, the second low-pressure meter 22-1, the second high-low pressure switch 22-2, the second high pressure gauge 22-3, the second fin regenerator 23, the second bypass solenoid valve 23-1, the second four-way change-over valve 24, the second ball valve 25, unload pressure electromagnetic valve 26, the second hot defrosting magnetic valve 27, the second device for drying and filtering 28, the second expansion valve 29, the first fin condenser 100, the second fin condenser 200.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
With reference to accompanying drawing, this cereal is dried cooler, comprises for by the moisture evaporation drying of cereal and by the first dry cooling system 1 of cereal cold storage, for by the moisture evaporation drying of cereal and by the second dry cooling system 2 of cereal cold storage, the condensate water recovery device 4 recycled for the centrifugal blower 3 of discharge quantity of fan, for condensed water;
The first dry cooling system 1 comprises the first-class heat exchanger 10 that can be used for exporting hot blast and cold wind, the first fin condenser 100, between first-class heat exchanger 10 and the first fin condenser 100, be connected with the first compressor 11 for operating pressure is provided in turn, for the first fin regenerator 12 of the backheat that dehumidifies, can change the first four-way change-over valve 13 of the refrigerant direction of motion, for the first ball valve 14 of switch maintenance, for the first hot defrosting magnetic valve 15 of defrost, be used for deimpurity the first device for drying and filtering 16, for the first expansion valve 17 of controlled pressure and adjust flux, on the first compressor 11, be connected with the first low-pressure meter 11-1 in turn, the first high-low pressure switch 11-2, the first high pressure gauge 11-3, on the first fin regenerator 12, be connected with the first bypass solenoid valve 12-1, first-class heat exchanger 10 is hydrophilic aluminium finned heat exchanger,
The second dry cooling system 2 comprises the secondary heat exchanger 20 that can be used for exporting hot blast and cold wind, the second fin condenser 200, between secondary heat exchanger 20 and the second fin condenser 200, be connected with the vapour liquid separator 21 for separating of refrigerant form in turn, for the second compressor 22 of operating pressure is provided, for the second fin regenerator 23 of the backheat that dehumidifies, can change the second four-way change-over valve 24 of the refrigerant direction of motion, for the second ball valve 25 of switch maintenance, unload pressure electromagnetic valve 26 for regulating system operating pressure, for the second hot defrosting magnetic valve 27 of defrost, be used for deimpurity the second device for drying and filtering 28, for the second expansion valve 29 of controlled pressure and adjust flux, on the second compressor 22, be connected with the second low-pressure meter 22-1 in turn, the second high-low pressure switch 22-2, the second high pressure gauge 22-3, on the second fin regenerator 23, be connected with the second bypass solenoid valve 23-1, secondary heat exchanger 20 is hydrophilic aluminium finned heat exchanger,
On the first fin condenser 100 and the second fin condenser 200, be all connected with the aerofoil fan 5 for air quantity is provided;
On centrifugal blower 3, be connected with for detection of leaving air temp and the automatic frequency-variable controller 3-1 that accurately controls air quantity;
Condensate water recovery device 4 includes the drip tray 4-1 of condensation water collection and is used to condensed water that the water pump 4-2 that sprays operating pressure is provided.
The first fin condenser 100 and the second fin condenser 200 are hydrophilic aluminium finned heat exchanger.
Frequency-variable controller 3-1 is provided with PLC man-machine interface 3-2.
The exit of the dry cooler of cereal is provided with for the dry temperature controlled temperature sensor 6 of cooler of cereal.
Workflow of the present invention is as follows:
Two process of refrigerastions: the first compressor 11 in the first dry cooling system 1 is compressed into high-temperature high-pressure state by the gaseous refrigerant in first-class heat exchanger 10 and is transported to the first fin condenser 100 via the first four-way change-over valve 13, at this moment, outside air at room temperature via aerofoil fan 5 Rapid Flows through the first fin condenser 100 surfaces and take away heat, high temperature and high pressure gaseous refrigerant in the first fin condenser 100 becomes the liquid state of medium temperature and medium pressure, the liquid refrigerant of this medium temperature and medium pressure filters out the impurity in system via the first device for drying and filtering 16, again through the adjusting reducing pressure by regulating flow further of the first expansion valve, cooling becomes the low-temp low-pressure liquid refrigerant that is easy to evaporate and returns in first-class heat exchanger 10, at this moment, extraneous air via centrifugal blower 3 Rapid Flows through first-class heat exchanger 10, the low-temp low-pressure liquid refrigerant heat absorption evaporation on first-class heat exchanger 10 surfaces becomes gaseous refrigerant, heat in extraneous air becomes cold wind output after cold-producing medium absorbs.
Circulation in the second dry cooling system 2 is identical with the kind of refrigeration cycle principle of the first dry cooling system 1, in the second dry cooling system 2 and the first dry cooling system 1, the cold wind of output is via the exit output of the dry cooler of cereal, reach the effect of two refrigeration outputs, realized the object of large temperature difference air-supply.
In the first dry cooling system 1, the first ball valve 14 is realized the object to system overhaul for can carry out opening and closing to system in the time that system breaks down, the first hot defrosting magnetic valve 15 plays the effect of defrost, the first hot defrosting magnetic valve 15 is in the time that the too low operation of environment temperature heats, first-class heat exchanger 10 there will be the phenomenon of frosting, the first hot defrosting magnetic valve 15 is obtaining after first-class heat exchanger 10 coil temperature probe signals obtaining electric-opening, a part of hot gas that exhaust outlet is discharged is directly delivered to the import department of first-class heat exchanger 10, frost in first-class heat exchanger 10 is dissolved, play the effect of defrost, after first-class heat exchanger 10 coil pipe probe temperatures raise, the first hot defrosting magnetic valve 15 dead electricity are closed, defrost finishes.
In the first dry cooling system 1; the first low-pressure meter 11-1, the first high pressure gauge 11-3 on the first compressor 11 can display device pressure value in the time of work; be convenient to the monitoring of user to machine; the first high-low pressure switch 11-2 plays a protective effect; prevent the too high or too low damage that causes the first compressor 11 of operating pressure in machine system, thereby cause mechanical disorder.
In the first dry cooling system 1, the first fin regenerator 12 can improve the condition of work of the first compressor 11, and can when needing dehumidifying, cereal heap dehumidify to cereal heap, low leaving air temp is carried out to backheat, realize further effect on moisture extraction, realize humidity in grain storage controlled.
In the second dry cooling system 2, because the liquid refrigerant in secondary heat exchanger 20 is evaporated to gaseous state after heat absorption, for preventing that cold-producing medium in secondary heat exchanger 20 from having the phenomenon of incomplete evaporation, vapour liquid separator 21 plays the effect that gaseous refrigerant is separated with liquid refrigerant, and vapour liquid separator 21 is transported to gaseous refrigerant in the second compressor 22 and carries out operation cycle.
In the second dry cooling system 2; unload pressure electromagnetic valve 26 in the time that the too high operation of environment temperature heats; after the too high setup pressure value that exceedes high-voltage switch gear of condensing pressure; unload pressure electromagnetic valve 26 and obtain electric-opening; after pressure drop being arrived in the differential pressure range of setting; unload pressure electromagnetic valve 26 dead electricity and close, release finishes, guaranteed the dry cooler of cereal can be because of high pressure escape stopping alarm.
In the second dry cooling system 2; the second low-pressure meter 22-1, the second high pressure gauge 22-3 on the second compressor 22 can display device pressure value in the time of work; be convenient to the monitoring of user to machine; the second high-low pressure switch 22-2 plays a protective effect; prevent the too high or too low damage that causes the first compressor 22 of operating pressure in machine system, thereby cause mechanical disorder.
In the second dry cooling system 2, the second fin regenerator 23 can improve the condition of work of the first compressor 22, and can when needing dehumidifying, cereal heap dehumidify to cereal heap, low leaving air temp is carried out to backheat, realize further effect on moisture extraction, realize humidity in grain storage controlled.
Two processes that heat: in the first dry cooling system 1, under the effect of the first four-way change-over valve 13, the gaseous refrigerant of HTHP is transported to first-class heat exchanger 10 by the first compressor 11, extraneous air is walked heat heat outputting wind via centrifugal blower 3 Rapid Flows through the surface band of first-class heat exchanger 10, realize the object of output hot blast, the gaseous refrigerant of HTHP becomes the liquid refrigerant of medium temperature and medium pressure, is transported to the first fin condenser 100 via the liquid refrigerant that becomes low-temp low-pressure after the first expansion valve 17 throttling pressure regulation, temperature adjustment.
The second dry cooling system 2 circulates identical with heating of the first dry cooling system 1, in the second dry cooling system 2 and the first dry cooling system 1, the hot blast of output is via the exit output of the dry cooler of cereal, reach the effect that heats output for two times, realized the object of large temperature difference air-supply.
First-class heat exchanger 10 and secondary heat exchanger 20 all adopt hydrophilic aluminium finned heat exchanger, can be convenient to condensed water landing from the fin of heat exchanger, are convenient to the recycling of condensed water.
Adopt condensate water recovery device 4, in the time of the dry large temperature-difference refrigerating of cooler of cereal, the condensed water that evaporation side produces reclaims by drip tray 4-1, by water pump 4-2, condensed water being transported to fin condenser side again sprays fin condenser, realize the object to fin condenser cooling, the dry cooler of cereal is operated under low condensation temperature, be not subject to Effect of Hyperthermic Environment, be beneficial to the power consumption that reduces unit, improve the operating efficiency of unit.
Adopt frequency-variable controller 3-1 to connect centrifugal blower 3, can realize automatic air quantity by the frequency of frequency-variable controller 3-1 change centrifugal blower 3, to guarantee exporting stationary temperature under complicated or unsettled external environment, in order to guarantee that cereal is dried and cooling stability.
The first fin condenser 100 and the second fin condenser 200 all adopt hydrophilic aluminium finned heat exchanger can be convenient to condensed water landing from the fin of fin condenser.
Adopt PLC man-machine interface 3-2 can make frequency-variable controller 3-1 simple to operate, interface is more directly perceived.
Set temperature sensor 6 can be controlled the leaving air temp of the dry cooler of cereal.
The dry cooler of cereal that the embodiment of the present invention provides, is independently dried cooling recirculation system by two and forms, and two dry cooling recirculation systems can be realized the conversion that heats and freeze, and realize the object of large temperature difference air-supply by the dual air-supply of two systems.
The dry cooler of cereal that the embodiment of the present invention provides, change refrigeration and the function heating by four-way change-over valve, when refrigeration, adopt the cooling technology of two kind of refrigeration cycle, the heat transfer technology of dual evaporation, can provide lower leaving air temp compared with common cooler or drying machine, realize large temperature difference cooling, unit air output is large, blast is also large, utilize frequency-variable controller 3-1 can change wind speed and the air quantity of centrifugal blower, meet the constant temperature air-supply demand of different granaries and different paddy temperature, cooling system stack, can realize unit work, also can work by two-shipper simultaneously, realize segmentation and hold tune, can meet the demand under varying environment operating mode, more be conducive to machine energy-conservation, while heating, by the conversion of four-way change-over valve, realize equally the function of large temperature difference high temperature air-out.
The dry cooler of cereal that the embodiment of the present invention provides, adopts samming cold storage, can increase the moisture scope of the cereal that puts in storage, and the dry run before putting in storage can shorten, and can save the energy, can solve the cereal large problem of dry amount of putting in storage.Can regulate grain storage temperature, dwindle the temperature difference, guarantee grain storage safety, can make cereal store compared with high-moisture in the situation that, can slow down grain ageing speed, reach the object of antistaling storing.Cold storage can reduce self breathing of cereal, thereby reduces the loss of cereal dry, reaches the object of impairment storage.The hyperplasia of storage pest, mould, microbial population be can suppress, dosage and stifling number of times within the storage cycle, reduced.Can prevent or eliminate water transport, layering, dewfall, can get rid of the peculiar smell in cereal heap, guarantee cereal safety, guarantee that grain quality is good.
The dry cooler of cereal that the embodiment of the present invention provides, can provide 100% all-fresh air, has improved air quality, and air is comparatively fresh, more can meet the air requirements of grain storage in grain storage.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention, to be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be limited and these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. the dry cooler of cereal, is characterized in that: comprise for by the moisture evaporation drying of cereal and by the first dry cooling system (1) of cereal cold storage, for by the moisture evaporation drying of cereal and by the second dry cooling system (2) of cereal cold storage, the condensate water recovery device (4) recycled for the centrifugal blower (3) of discharge quantity of fan, for condensed water;
The described first dry cooling system (1) comprises the first-class heat exchanger (10) that can be used for exporting hot blast and cold wind, the first fin condenser (100), between described first-class heat exchanger (10) and the first fin condenser (100), be connected with the first compressor (11) for operating pressure is provided in turn, for the first fin regenerator (12) of the backheat that dehumidifies, can change first four-way change-over valve (13) of the refrigerant direction of motion, for first ball valve (14) of switch maintenance, for the first hot defrosting magnetic valve (15) of defrost, be used for deimpurity the first device for drying and filtering (16), for first expansion valve (17) of controlled pressure and adjust flux, on described the first compressor (11), be connected with the first low-pressure meter (11-1) in turn, the first high-low pressure switch (11-2), the first high pressure gauge (11-3), on described the first fin regenerator (12), be connected with the first bypass solenoid valve (12-1), described first-class heat exchanger (10) is hydrophilic aluminium finned heat exchanger,
The described second dry cooling system (2) comprises the secondary heat exchanger (20) that can be used for exporting hot blast and cold wind, the second fin condenser (200), between described secondary heat exchanger (20) and the second fin condenser (200), be connected with the vapour liquid separator (21) for separating of refrigerant form in turn, for second compressor (22) of operating pressure is provided, for the second fin regenerator (23) of the backheat that dehumidifies, can change second four-way change-over valve (24) of the refrigerant direction of motion, for second ball valve (25) of switch maintenance, unload pressure electromagnetic valve (26) for regulating system operating pressure, for the second hot defrosting magnetic valve (27) of defrost, be used for deimpurity the second device for drying and filtering (28), for second expansion valve (29) of controlled pressure and adjust flux, on described the second compressor (22), be connected with the second low-pressure meter (22-1) in turn, the second high-low pressure switch (22-2), the second high pressure gauge (22-3), on described the second fin regenerator (23), be connected with the second bypass solenoid valve (23-1), described secondary heat exchanger (20) is hydrophilic aluminium finned heat exchanger,
On described the first fin condenser (100) and the second fin condenser (200), be all connected with the aerofoil fan (5) for air quantity is provided;
On described centrifugal blower (3), be connected with for detection of leaving air temp and the automatic frequency-variable controller (3-1) of accurately controlling air quantity;
Described condensate water recovery device (4) includes the drip tray of condensation water collection (4-1) and is used to condensed water that the water pump (4-2) that sprays operating pressure is provided.
2. the dry cooler of cereal according to claim 1, is characterized in that: described the first fin condenser (100) and the second fin condenser (200) are hydrophilic aluminium finned heat exchanger.
3. the dry cooler of cereal according to claim 1, is characterized in that: described frequency-variable controller (3-1) is provided with PLC man-machine interface (3-2).
4. according to the dry cooler of the cereal described in claim 1,2 or 3, it is characterized in that: the exit of the dry cooler of described cereal is provided with for the dry temperature controlled temperature sensor of cooler (6) of cereal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310077691.0A CN103141570B (en) | 2013-03-12 | 2013-03-12 | Grain drying cooler |
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| CN201310077691.0A CN103141570B (en) | 2013-03-12 | 2013-03-12 | Grain drying cooler |
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| CN103141570A CN103141570A (en) | 2013-06-12 |
| CN103141570B true CN103141570B (en) | 2014-06-04 |
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| CN106958929A (en) * | 2017-05-17 | 2017-07-18 | 广东美的暖通设备有限公司 | Air-conditioning system and its blower control method |
| CN111156653B (en) * | 2019-12-16 | 2021-01-29 | 珠海格力电器股份有限公司 | Fault detection method for hot defrosting electromagnetic bypass valve, storage medium and air conditioner |
| CN113748855A (en) * | 2021-04-25 | 2021-12-07 | 吉荣空调(揭阳)有限公司 | Grain storage system temperature control device, grain storage system and control method |
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| CN102287946A (en) * | 2010-06-21 | 2011-12-21 | 浙江青风制冷设备制造有限公司 | Cooling machine |
| CN102475138A (en) * | 2010-11-25 | 2012-05-30 | 浙江青风制冷设备制造有限公司 | Grain ventilation cooling device and system |
| CN203072796U (en) * | 2013-03-12 | 2013-07-24 | 浙江青风制冷设备制造有限公司 | Grain drying cooler |
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2013
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| CN1851360A (en) * | 2005-12-12 | 2006-10-25 | 中央储备粮扬州直属库 | Solar-refrigeration low-temperature grain-storage air-conditioning system |
| CN2882269Y (en) * | 2006-03-10 | 2007-03-28 | 何雪梅 | Integrated machine for cooling corn drying in situ, and humidifying in situ |
| CN201451190U (en) * | 2009-06-02 | 2010-05-12 | 彭豫 | Low-temperature cold air food storage set with evaporation-type condenser |
| CN102287946A (en) * | 2010-06-21 | 2011-12-21 | 浙江青风制冷设备制造有限公司 | Cooling machine |
| CN102475138A (en) * | 2010-11-25 | 2012-05-30 | 浙江青风制冷设备制造有限公司 | Grain ventilation cooling device and system |
| CN203072796U (en) * | 2013-03-12 | 2013-07-24 | 浙江青风制冷设备制造有限公司 | Grain drying cooler |
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| CN103141570A (en) | 2013-06-12 |
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Address after: Zhejiang province Lishui City Road 323000 Longqing Shuige Industrial Zone No. 277 Applicant after: ZHEJIANG KINGFIT ENVIRONMENT CO.,LTD. Address before: Zhejiang province Lishui City Road 323000 Longqing Shuige Industrial Zone No. 277 Applicant before: Zhejiang Qingfeng Refrigeration Equipment Manufacturing Co.,Ltd. |
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Denomination of invention: Grain drying and cooling machine Effective date of registration: 20221213 Granted publication date: 20140604 Pledgee: Lishui Liandu Sub branch of Agricultural Bank of China Ltd. Pledgor: ZHEJIANG KINGFIT ENVIRONMENT CO.,LTD. Registration number: Y2022980026396 |