CN103141570A - Grain drying cooler - Google Patents
Grain drying cooler Download PDFInfo
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- CN103141570A CN103141570A CN2013100776910A CN201310077691A CN103141570A CN 103141570 A CN103141570 A CN 103141570A CN 2013100776910 A CN2013100776910 A CN 2013100776910A CN 201310077691 A CN201310077691 A CN 201310077691A CN 103141570 A CN103141570 A CN 103141570A
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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 because moisture is too high, needs evenly dry could the warehouse-in in storage afterwards after purchase, therefore increased the man power and material of the links such as turnover, transportation, drying.
Cereal is in long-time storage process, radiation due to 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, can not be in the situation that external high temperature provide cold air distribution effectively, thus can not effectively realize the purpose of low-temperature grain-storage.
The cooling cooler shortcoming of cereal that is used for common on market is: unit is large, energy consumption is high, cool time is long etc., and on market common be used for grain storage usually only have drying machine or cooler, lack the grain storage equipment that can have simultaneously 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 with the moisture evaporation drying in cereal and with the cereal cold storage.
The present invention solves the technical scheme that its technical problem adopts:
The dry cooler of this cereal, comprise for the moisture evaporation drying of cereal and with the first dry cooling system of cereal cold storage, be used for the moisture evaporation drying of cereal and with the second dry cooling system of cereal cold storage, be used for discharge quantity of fan centrifugal blower, be used for the condensate water recovery device that condensed water is recycled;
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, be connected with in turn between first-class heat exchanger and the first fin condenser be used to the first compressor that operating pressure is provided, the the first fin regenerator that is used for the dehumidifying backheat, can change the first four-way change-over valve of the refrigerant direction of motion, the first ball valve that is used for switch maintenance, the the first hot defrosting magnetic valve that is used for defrost, be used for going deimpurity the first device for drying and filtering, the first expansion valve that is used for controlled pressure and adjust flux, be connected with the first low-pressure meter on the first compressor in turn, the first high-low pressure switch, the first high pressure gauge, be connected with the first bypass solenoid valve on the first fin regenerator, 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, be connected with the vapour liquid separator for separating of the refrigerant form between secondary heat exchanger and the second fin condenser in turn, be used for providing the second compressor of operating pressure, the the second fin regenerator that is used for the dehumidifying backheat, can change the second four-way change-over valve of the refrigerant direction of motion, the second ball valve that is used for switch maintenance, the pressure electromagnetic valve that unloads that is used for the regulating system operating pressure, the the second hot defrosting magnetic valve that is used for defrost, be used for going deimpurity the second device for drying and filtering, the second expansion valve that is used for controlled pressure and adjust flux, be connected with the second low-pressure meter on the second compressor in turn, the second high-low pressure switch, the second high pressure gauge, be connected with the second bypass solenoid valve on the second fin regenerator, secondary heat exchanger is hydrophilic aluminium finned heat exchanger,
All be connected be used to the aerofoil fan that air quantity is provided on the first fin condenser and the second fin condenser;
Be connected with on centrifugal blower 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 carried out drying and cooling, dry run is for heating process, and cooling procedure is process of refrigerastion, i.e. two heatings and two refrigeration system.
When cereal needs drying, what the first dry cooling system and the second dry cooling system carried out is to heat process, in heating process, the first dry cooling system and the second dry cooling system carry out hot blast output simultaneously, be that twin-stage heats output, can realize the purpose of large temperature difference high temperature air-supply, the hot blast of output can fully evaporate the moisture in cereal, realizes the purpose of dried grain.
When the 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 outputs, can realize the purpose of large temperature difference low-temperature air-supply, make the abundant cold storage of cereal.
Unload pressure electromagnetic valve when the too high operation of environment temperature heats; too high over after the setup pressure value of high-voltage switch gear at condensing pressure; unload pressure electromagnetic valve and get electric-opening; after pressure drop being arrived in the differential pressure range of setting; unloading the pressure electromagnetic valve dead electricity closes; release finishes, guaranteed the dry cooler of cereal can be because of the high pressure escape stopping alarm.
the first hot defrosting magnetic valve is when the too low operation of environment temperature heats, the phenomenon of frosting can appear in first-class heat exchanger, the first hot defrosting magnetic valve gets electric-opening after obtaining first-class heat exchanger coil temperature probe signal, a part of hot gas of exhaust outlet discharge is directly delivered to the import department of first-class heat exchanger, frost on 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 when the too low operation of environment temperature heats, the phenomenon of frosting can appear in secondary heat exchanger, the second hot defrosting magnetic valve gets electric-opening after obtaining secondary heat exchanger coil temperature probe signal, a part of hot gas of exhaust outlet discharge 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, the dry cooler of cereal can not affected because of frosting 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, when the large temperature-difference refrigerating of the dry cooler of cereal, the condensed water that evaporation side produces reclaims by drip tray, being transported to the fin condenser side by the pump handle condensed water again sprays fin condenser, the purpose of realization to the fin condenser cooling is operated under low condensation temperature the dry cooler of cereal, is not subjected 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, the cereal heap dehumidify to the cereal heap again, low leaving air temp is carried out backheat, realize further effect on moisture extraction, realize that the humidity in grain storage is controlled.
Adopt frequency-variable controller to connect centrifugal blower, can realize automatic air quantity by the frequency that frequency-variable controller changes centrifugal blower, guaranteeing 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 the PLC man-machine interface.
Adopt the PLC man-machine interface can make frequency-variable controller simple to operate, the interface is more directly perceived.
The exit of the dry cooler of cereal is provided with for the temperature controlled temperature sensor of the dry cooler of cereal.
The 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 the samming cold storage, can increase the moisture scope of the cereal that puts in storage, the dry run before putting in storage can shorten, can energy savings, can solve the cereal large problem of dry amount of putting in storage.
2. can regulate the grain storage temperature, dwindle the temperature difference, guarantee grain storage safety, can make cereal in the situation that store than high-moisture, can slow down grain ageing speed, reach the purpose of antistaling storing.
3. cold storage can reduce self breathing of cereal, thereby reduces the loss of cereal dry, reaches the purpose of impairment storage.
4. the hyperplasia of storage pest, mould, microbial population be can suppress, dosage and stifling number of times reduced at storage in the cycle.
5. can prevent or eliminate water transport, layering, dewfall, can get rid of the peculiar smell in the cereal heap, guarantee cereal safety, guarantee that grain quality is good.
Description of drawings
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
The invention will be further described below in conjunction with accompanying drawing:
With reference to accompanying drawing, the dry cooler of this cereal, comprise for the moisture evaporation drying of cereal and with the first dry cooling system 1 of cereal cold storage, be used for the moisture evaporation drying of cereal and with the second dry cooling system 2 of cereal cold storage, be used for discharge quantity of fan centrifugal blower 3, be used for the condensate water recovery device 4 that condensed water is recycled;
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, be connected with in turn between first-class heat exchanger 10 and the first fin condenser 100 be used to the first compressor 11 that operating pressure is provided, the the first fin regenerator 12 that is used for the dehumidifying backheat, can change the first four-way change-over valve 13 of the refrigerant direction of motion, the first ball valve 14 that is used for switch maintenance, the the first hot defrosting magnetic valve 15 that is used for defrost, be used for going deimpurity the first device for drying and filtering 16, the first expansion valve 17 that is used for controlled pressure and adjust flux, be connected with the first low-pressure meter 11-1 on the first compressor 11 in turn, the first high-low pressure switch 11-2, the first high pressure gauge 11-3, be connected with the first bypass solenoid valve 12-1 on the first fin regenerator 12, 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, be connected with the vapour liquid separator 21 for separating of the refrigerant form between secondary heat exchanger 20 and the second fin condenser 200 in turn, be used for providing the second compressor 22 of operating pressure, the the second fin regenerator 23 that is used for the dehumidifying backheat, can change the second four-way change-over valve 24 of the refrigerant direction of motion, the second ball valve 25 that is used for switch maintenance, what be used for the regulating system operating pressure unloads pressure electromagnetic valve 26, the the second hot defrosting magnetic valve 27 that is used for defrost, be used for going deimpurity the second device for drying and filtering 28, the second expansion valve 29 that is used for controlled pressure and adjust flux, be connected with the second low-pressure meter 22-1 on the second compressor 22 in turn, the second high-low pressure switch 22-2, the second high pressure gauge 22-3, be connected with the second bypass solenoid valve 23-1 on the second fin regenerator 23, secondary heat exchanger 20 is hydrophilic aluminium finned heat exchanger,
All be connected be used to the aerofoil fan 5 that air quantity is provided on the first fin condenser 100 and the second fin condenser 200;
Be connected with on centrifugal blower 3 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 temperature controlled temperature sensor 6 of the dry 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 with 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 impurity in system via the first device for drying and filtering 16, again through the adjusting of the first expansion valve reducing pressure by regulating flow further, 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 purpose of large temperature difference air-supply.
in the first dry cooling system 1, the first ball valve 14 is used for when breaking down in system carrying out opening and closing to system and realizes purpose to system overhaul, the first hot defrosting magnetic valve 15 plays the effect of defrost, the first hot defrosting magnetic valve 15 is when the too low operation of environment temperature heats, the phenomenon of frosting can appear in first-class heat exchanger 10, the first hot defrosting magnetic valve 15 gets electric-opening after obtaining first-class heat exchanger 10 coil temperature probe signals, a part of hot gas of exhaust outlet discharge is directly delivered to the import department of first-class heat exchanger 10, frost on 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; but the first low-pressure meter 11-1 on the first compressor 11, the pressure value of the first high pressure gauge 11-3 display device when work; be convenient to the user to the monitoring of 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, the cereal heap dehumidify to the cereal heap, low leaving air temp is carried out backheat, realize further effect on moisture extraction, realize that the humidity in grain storage is 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 when the too high operation of environment temperature heats; too high over after the setup pressure value of high-voltage switch gear at condensing pressure; unload pressure electromagnetic valve 26 and get 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 the high pressure escape stopping alarm.
In the second dry cooling system 2; but the second low-pressure meter 22-1 on the second compressor 22, the pressure value of the second high pressure gauge 22-3 display device when work; be convenient to the user to the monitoring of 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, the cereal heap dehumidify to the cereal heap, low leaving air temp is carried out backheat, realize further effect on moisture extraction, realize that the humidity in grain storage is 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 first compressor 11 is transported to first-class heat exchanger 10 with the gaseous refrigerant of HTHP, extraneous air is walked heat heat outputting wind via centrifugal blower 3 Rapid Flows through the surface band of first-class heat exchanger 10, realized the purpose 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 two inferior effects that heat output, realized the purpose 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, when the large temperature-difference refrigerating of the dry 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 the fin condenser side again sprays fin condenser, the purpose of realization to the fin condenser cooling is operated under low condensation temperature the dry cooler of cereal, is not subjected 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 cereal drying 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, the 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, by two independently dry cooling recirculation system form, two conversions that dry cooling recirculation system can be realized heating and freezing realize the purpose of large temperature difference air-supply by the dual air-supply of two systems.
the dry cooler of the cereal that the embodiment of the present invention provides, change refrigeration and the function that heats by four-way change-over valve, adopt the cooling technology of two kind of refrigeration cycle during refrigeration, the heat transfer technology of dual evaporation, compare the leaving air temp that can provide lower with common cooler or drying machine, realize large temperature difference cooling, the 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, satisfy the constant temperature air-supply demand of different granaries and different paddy temperature, the cooling system stack, can realize unit work, also but two-shipper is worked simultaneously, realize segmentation appearance accent, can satisfy the demand under the varying environment operating mode, more be conducive to machine energy-conservation, by the conversion of four-way change-over valve, realized equally the function of large temperature difference high temperature air-out when heating.
The dry cooler of cereal that the embodiment of the present invention provides adopts the 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, can energy savings, can solve the cereal large problem of dry amount of putting in storage.Can regulate the grain storage temperature, dwindle the temperature difference, guarantee grain storage safety, can make cereal in the situation that store than high-moisture, can slow down grain ageing speed, reach the purpose of antistaling storing.Cold storage can reduce self breathing of cereal, thereby reduces the loss of cereal dry, reaches the purpose of impairment storage.The hyperplasia that can suppress storage pest, mould, microbial population reduces dosage and stifling number of times in the cycle at storage.Can prevent or eliminate water transport, layering, dewfall, can get rid of the peculiar smell in the cereal heap, guarantee cereal safety, guarantee that grain quality is good.
The dry cooler of the 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 satisfy the air requirements of grain storage in grain storage.
Above-mentioned explanation to the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention, multiple modification to these embodiment will be apparent concerning those skilled in the art, General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization 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 a cereal is characterized in that: comprise for the moisture evaporation drying of cereal and with the first dry cooling system (1) of cereal cold storage, be used for the moisture evaporation drying of cereal and with the second dry cooling system (2) of cereal cold storage, be used for discharge quantity of fan centrifugal blower (3), be used for the condensate water recovery device (4) that condensed water is recycled;
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), be connected with in turn between described first-class heat exchanger (10) and the first fin condenser (100) be used to the first compressor (11) that operating pressure is provided, the the first fin regenerator (12) that is used for the dehumidifying backheat, can change first four-way change-over valve (13) of the refrigerant direction of motion, the first ball valve (14) that is used for switch maintenance, the the first hot defrosting magnetic valve (15) that is used for defrost, be used for going deimpurity the first device for drying and filtering (16), the first expansion valve (17) that is used for controlled pressure and adjust flux, be connected with the first low-pressure meter (11-1) on described the first compressor (11) in turn, the first high-low pressure switch (11-2), the first high pressure gauge (11-3), be connected with the first bypass solenoid valve (12-1) on described the first fin regenerator (12), 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), be connected with the vapour liquid separator (21) for separating of the refrigerant form between described secondary heat exchanger (20) and the second fin condenser (200) in turn, be used for providing second compressor (22) of operating pressure, the the second fin regenerator (23) that is used for the dehumidifying backheat, can change second four-way change-over valve (24) of the refrigerant direction of motion, the second ball valve (25) that is used for switch maintenance, what be used for the regulating system operating pressure unloads pressure electromagnetic valve (26), the the second hot defrosting magnetic valve (27) that is used for defrost, be used for going deimpurity the second device for drying and filtering (28), the second expansion valve (29) that is used for controlled pressure and adjust flux, be connected with the second low-pressure meter (22-1) on described the second compressor (22) in turn, the second high-low pressure switch (22-2), the second high pressure gauge (22-3), be connected with the second bypass solenoid valve (23-1) on described the second fin regenerator (23), described secondary heat exchanger (20) is hydrophilic aluminium finned heat exchanger,
All be connected be used to the aerofoil fan that air quantity is provided (5) on described the first fin condenser (100) and the second fin condenser (200);
Be connected with on described centrifugal blower (3) 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 (4-1) of condensation water collection 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, it 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, it is characterized in that: described frequency-variable controller (3-1) is provided with PLC man-machine interface (3-2).
4. dry coolers of according to claim 1,2 or 3 described cereal, 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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| CN103141570B CN103141570B (en) | 2014-06-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111156653A (en) * | 2019-12-16 | 2020-05-15 | 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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| 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 |
| CN111156653A (en) * | 2019-12-16 | 2020-05-15 | 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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|---|---|
| CN103141570B (en) | 2014-06-04 |
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