CN101670924A - Movable energy-saving differential pressure precooling device - Google Patents
Movable energy-saving differential pressure precooling device Download PDFInfo
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- CN101670924A CN101670924A CN200910018928A CN200910018928A CN101670924A CN 101670924 A CN101670924 A CN 101670924A CN 200910018928 A CN200910018928 A CN 200910018928A CN 200910018928 A CN200910018928 A CN 200910018928A CN 101670924 A CN101670924 A CN 101670924A
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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
Abstract
The invention discloses a movable energy-saving differential pressure precooling device which is characterized in that a refrigerator unit (1) and an electric control device (5) are arranged outside acold storage container (4), the cold storage container (4) is internally provided with an evaporator (2) connected with the refrigerator unit (1); temperature probes (6) are arranged below two fans (7) below the evaporator (2); the evaporator (2) is connected with an air duct baffle (11) and an air duct baffle (12); an air duct (10) is formed between the air duct baffle (11) and the air duct baffle (12); the air duct baffle (11) and the air duct baffle (12) are connected with the cold storage container (4); air ducts (13) are preserved among containers (9) in the cold storage container (4); each air duct (13) is provided with a check curtain (3); and air ducts (14) are preserved between the containers (9) and the cold storage container (4). The invention uses the cold storage container asa carrier, has convenient use, good pre-cooling effect, high utilization rate, high cooling speed, even cooling, low energy consumption and fruit and vegetable loss rate, keeps fresh appearance and mouthfeel of fruits and vegetables and ensures that the nutrition is not lost.
Description
Technical field:
The present invention relates to a kind of movable energy-saving differential pressure precooling device that utilizes refrigerated container as carrier, belong to fruits and vegetables logistics technique of refrigeration field.
Background technology:
Along with improving constantly of national life level, the particularly progress of cultivation technique, technique of refrigeration in recent years, greenhouse production popularize the development of transport capacity, oneself is not content with people the vegetable and fruit supply is only arranged, and its freshness, outward appearance, mouthfeel are also had higher requirement.Therefore the loss that must do one's utmost to control drying in transportation, the storage, wound, go bad etc. caused, and because of water evaporates and respiration consume fruit and vegetable atrophy that the idiotrophic composition causes, variable color etc., the defective that prevents that outward appearance is indecency, mouthfeel is not just reaching the nutrition loss etc. produces.
But, remain lived organism behind the fruit and vegetable picking, still carrying out vigorous breathing and evaporation, decompose and consume the nutritional labeling of self, and emit respiration heat; Simultaneously, also will discharge a large amount of field heats after fresh fruit of vegetables is gathered from the field, both make the ambient temperature around the fruits and vegetables of harvesting back raise rapidly, and the ripe aging of acceleration fruits and vegetables makes it freshness and quality obviously descends.Thereby must be in the shortest time after fruits and vegetables are gathered, in the fruit and vegetable materials place of production, with manual method with its temperature that is cooled to stipulate, make fruits and vegetables keep low life level, under the prerequisite that guarantees resistance against diseases respiration and evaporation are reduced to the minimum level that still can keep eubolism, this cooling process is referred to as precooling.Studies show that, in whole cold chain, lose in circulation without the fruits and vegetables of precooling treatment and to be about 25%-30%, and only be 5%-10% through its loss rate of fruits and vegetables of precooling treatment.At present, in order to process the high quality fruit and vegetable food, first procedure of processing after precooling having been gathered as fruits and vegetables.And existing differential pressure precooling device all utilizes freezer to carry out design and installation, and its stationkeeping is not removable, uses extremely inconvenience, and the precooling effect is not really desirable, and rate of cooling is slow, inhomogeneous cooling is even, power consumption is high.
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art and provide a kind of refrigerated container that utilizes as carrier, easy to use, precooling is effective, the degree of utilization height, rate of cooling is fast, cooling is even, power consumption is low, the fruits and vegetables loss rate is low, keeps fresh outward appearance and the mouthfeel of fruits and vegetables, the movable energy-saving differential pressure precooling device that nutrition is not lost.
Purpose of the present invention can reach by following measure: a kind of movable energy-saving differential pressure precooling device, it is characterized in that it has refrigerated container, refrigerated container is provided with refrigerating unit and electrical controller outward, be provided with evaporator in the refrigerated container, refrigerating unit connects evaporator, evaporator has two blower fans, be equipped with temp probe under each blower fan, evaporator connects air channel barrier and air channel barrier, form the air channel between air channel barrier and the air channel barrier, air channel barrier is connected with refrigerated container with air channel barrier, be provided with packing chest in the refrigerated container, reserve air flue between the packing chest, air flue is provided with check apron, reserves air flue between packing chest and the refrigerated container.
In order further to realize purpose of the present invention, described refrigerating unit has compressor, compressor connects oil extractor by bleeder line, oil extractor connects compressor by oil return line, oil extractor connects condenser by admission line, compressor connects the return-air jar by suction line, condenser connects liquid vessel by the feed liquor pipeline, liquid vessel is connected with evaporator by device for drying and filtering, shutoff valve, throttling device, electromagnetic valve, liquid-sighting glass, expansion valve successively, and evaporator connects the return-air jar by return line.
In order further to realize purpose of the present invention, described electrical controller has Programmable Logic Controller PLC, Programmable Logic Controller PLC connects touch-screen, Programmable Logic Controller PLC has CPU, CPU connects switching input module respectively, the analog quantity load module, the switching value output module, switching input module connects the exhaust gas pressure switch respectively, the suction pressure switch, oil level switch, the analog quantity load module connects exhaust gas temperature sensor respectively, the ventilation temperature sensor, return air temperature sensor, the switching value output module connects first motor starter respectively, second motor starter, first motor starter, second motor starter all connects air switch, first motor starter connects compressor, and second motor starter connects blower fan.
The present invention can produce following good effect compared with the prior art: the present invention selects for use refrigerated container as supporting body, can directly transport to the field in the fruits and vegetables place of production, directly the fruits and vegetables under plucking are carried out precooling treatment, easy to use, greatly reduce because of water evaporates and respiration consume fruits and vegetables atrophy, variable color, the mouthfeel that the idiotrophic composition causes and just do not reaching defectives such as nutrition loss.This portable differential pressure precooling device can be transported to other place after precooling is finished, make its degree of utilization reach maximization.Refrigerating unit of the present invention is installed in the casing outer end, and evaporator and blower fan are installed in the casing.The packing chest of depositing fruit and vegetable food is placed in the freight container, reserves air flue between the packing chest, PVC canvas curtain is stamped in the air flue top.Utilize big pressure head blower fan to make packing chest both sides build-up of pressure poor, cold wind is entered in the packing chest by packing chest one side breather port to be contacted then to be come out by the opposite side breather port with product, simultaneously the heat of fruits and vegetables in the case is taken away, realized the quick cooling of fruits and vegetables, process load can reach 10 tons/time, the precooling product is chilled to 5 ℃ of required average cool times in advance less than 6 hours in advance by 30 ℃, handles energy consumption cost less than 5.5 yuan/ton, has fast, the low advantage of cooling off evenly, consume energy of rate of cooling.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the structural representation of the refrigerating unit of Fig. 1;
Fig. 5 is the functional block diagram of the electrical controller of Fig. 1.
The specific embodiment:
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated:
Embodiment: a kind of movable energy-saving differential pressure precooling device is (referring to accompanying drawing 1, Fig. 2, Fig. 3), its refrigerated container 4 that utilizes van cooler is as mobile vehicle, refrigerated container 4 outer refrigerating unit 1 and the electrical controllers 5 of being provided with, be provided with evaporator 2 in the refrigerated container 4, refrigerating unit 1 connects evaporator 2, evaporator 2 has two blower fans 7, each blower fan is equipped with temp probe 67 times, evaporator 2 connects air channel barrier 11 and air channel barrier 12, form air channel 10 between air channel barrier 11 and the air channel barrier 12, air channel barrier 11 is connected with refrigerated container 4 with air channel barrier 12, be provided with the packing chest 9 of the band breather port of depositing fruit and vegetable food in the refrigerated container 4, packing chest 9 is evenly put, reserve air flue 13 between the packing chest 9, promptly negative pressure (return air) is distinguished, and air flue 13 is provided with PVC check apron 3, reserve air flue 14 between packing chest 9 and the refrigerated container 4, i.e. malleation (air intake) district.
Refrigerating unit 1 and blower fan 7 starts; utilize blower fan 7 to make packing chest 9 both sides build-ups of pressure poor; the cold wind that comes out from evaporator 2 is through air flue 14[malleation (air intake) district] enter the packing chest 9 near the breather port of casing one sides by packing chest 9 and contact then to come out by the opposite side breather port with fruit and vegetable food; enter air flue 13[negative pressure (return air) district]; get back to evaporator 2 through blower fan 7; in this wind cyclic process with case in the heat that gives out of fruits and vegetables take away; realize the quick cooling of fruits and vegetables; refrigerating unit 1 and blower fan 7 auto-stops when the temp probe 6 at blower fan 7 ventilation inlet places detects the cold wind temperature and reaches the setting value of electrical controller 5, the fruit and vegetable food precooling is finished.
Refrigerating unit 1 (referring to Fig. 4) has compressor 1-1, compressor 1-1 is a screw compressor, compressor 1-1 connects oil extractor 1-2 by bleeder line 1-7, oil extractor 1-2 connects compressor 1-1 by oil return line 1-13, oil extractor 1-2 connects condenser 1-4 by admission line 1-8, compressor 1-1 connects return-air jar 1-6 by suction line 1-12, condenser 1-4 connects liquid vessel 1-5 by feed liquor pipeline 1-9, liquid vessel 1-5 is successively by device for drying and filtering 1-3, shutoff valve 1-17, throttling device 1-10, electromagnetic valve 1-16, liquid-sighting glass 1-15, expansion valve 1-14 is connected with evaporator 2, and evaporator 2 connects return-air jar 1-6 by return line 1-11.Its principle of work is that refrigerant flows at the tube side of evaporator 2, the heat of the outer secondary refrigerant of absorption tube, and constantly evaporation.Become gas (containing a small amount of unevaporated refrigerant liquid) when arriving evaporator 2 outlets, cooled via return air pipeline 1-11 enters return-air jar 1-6, carries out gas-liquid separation, is inhaled into compressor 1-1 then.Gas after the compressor 1-1 compression enters oil extractor 1-2 through bleeder line 1-7, and lubricating oil is separated with refrigerant.Lubricating oil enters compressor 1-1 through oil return line 1-13, and refrigerant then enters condenser 1-4 along admission line 1-8 and is condensed into liquid, and liberated heat is blown over the air of condenser and taken away.After condensed fluid enters liquid vessel 1-5 by feed liquor pipeline 1-9, after process filter 1-3 removes impurity again,, enter evaporator 2 recirculation by throttling device 1-10 throttling becoming low-temp low-pressure liquid.
Electrical controller 5 has Programmable Logic Controller PLC, Programmable Logic Controller PLC connects touch-screen 5-4, Programmable Logic Controller PLC has CPU 5-13, CPU 5-13 connects switching input module 5-8 respectively, analog quantity load module 5-9, switching value output module 5-14, switching input module 5-8 connects exhaust gas pressure switch 5-5 respectively, suction pressure switch 5-6, oil level switch 5-7, analog quantity load module 5-9 connects exhaust gas temperature sensor 5-12 respectively, ventilation temperature sensor 5-11, return air temperature sensor 5-10, switching value output module 5-14 connects the first motor starter 5-2 respectively, the second motor starter 5-3, the first motor starter 5-2, the second motor starter 5-3 all connects air switch 5-1, the first motor starter 5-2 connects compressor 1-1, and the second motor starter 5-3 connects blower fan 7.
Electrical controller 5 principle of work when precooling begins, are pressed the start pushbutton enable start on the touch-screen 5-4, screw compressor 1-1 and blower fan 7 standard-sized sheets; When ventilation temperature sensor 5-11 temperature when the design temperature T1, information is transferred to CPU5-13 by analog quantity load module 5-9, sends instruction and is transferred to the first motor starter 5-2 by switching value output module 5-14 and closes down screw compressor 1-1; As ventilation temperature sensor temperature 5-11 during to design temperature T2, information is transferred to CPU 5-13 by analog quantity load module 5-9, sends instruction and is transferred to the first motor starter 5-2 by switching value output module 5-14 and starts screw compressor 1-1; When return air temperature sensor 5-10 temperature arrives design temperature T3, information is transferred to CPU 5-13 by analog quantity load module 5-9, send that instruction is transferred to the first motor starter 5-2 by switching value output module 5-14 and the second motor starter 5-3 is closed down screw compressor 1-1 and blower fan 7, system is out of service.When detecting the screw compressor exhaust temperature, exhaust gas temperature sensor 5-12 surpasses design temperature T4, information is transferred to CPU5-13 by analog quantity load module 5-9, sends instruction and closes down screw compressor 1-1 and blower fan 7 by switching value output module transmission 5-14 to the first motor starter 5-2 and the second motor starter 5-3; Screw compressor 1-1 is provided with the protection value of exhaust gas pressure, suction pressure and oil level; among exhaust gas pressure switch 5-5, suction pressure switch 5-6 and oil level switch 5-7 three, have above the protection value; information is transferred to CPU 5-13 by switching input module 5-8, sends that instruction is transferred to the first motor starter 5-2 by switching value output module 5-14 and the second motor starter 5-3 is closed down screw compressor 1-1 and blower fan 7.
Claims (3)
1, a kind of movable energy-saving differential pressure precooling device, it is characterized in that it has refrigerated container (4), outer refrigerating unit (1) and the electrical controller (5) of being provided with of refrigerated container (4), be provided with evaporator (2) in the refrigerated container (4), refrigerating unit (1) connects evaporator (2), evaporator (2) has two blower fans (7), be equipped with temp probe (6) under each blower fan (7), evaporator (2) connects air channel barrier (11) and air channel barrier (12), form air channel (10) between air channel barrier (11) and the air channel barrier (12), air channel barrier (11) is connected with refrigerated container (4) with air channel barrier (12), be provided with packing chest (9) in the refrigerated container (4), reserve air flue (13) between the packing chest (9), air flue (13) is provided with check apron (3), reserves air flue (14) between packing chest (9) and the refrigerated container (4).
2, a kind of movable energy-saving differential pressure precooling device according to claim 1, it is characterized in that described refrigerating unit (1) has compressor (1-1), compressor (1-1) connects oil extractor (1-2) by bleeder line (1-7), oil extractor (1-2) connects compressor (1-1) by oil return line (1-13), oil extractor (1-2) connects condenser (1-4) by admission line (1-8), compressor (1-1) connects return-air jar (1-6) by suction line (1-12), condenser (1-4) connects liquid vessel (1-5) by feed liquor pipeline (1-9), liquid vessel (1-5) is successively by device for drying and filtering (1-3), shutoff valve (1-17), throttling device (1-10), electromagnetic valve (1-16), liquid-sighting glass (1-15), expansion valve (1-14) is connected with evaporator (2), and evaporator (2) connects return-air jar (1-6) by return line (1-11).
3, a kind of movable energy-saving differential pressure precooling device according to claim 1, it is characterized in that described electrical controller (5) has Programmable Logic Controller PLC, Programmable Logic Controller PLC connects touch-screen (5-4), Programmable Logic Controller PLC has CPU (5-13), CPU (5-13) connects switching input module (5-8) respectively, analog quantity load module (5-9), switching value output module (5-14), switching input module (5-8) connects exhaust gas pressure switch (5-5) respectively, suction pressure switch (5-6), oil level switch (5-7), analog quantity load module (5-9) connects exhaust gas temperature sensor (5-12) respectively, ventilation temperature sensor (5-11), return air temperature sensor (5-10), switching value output module (5-14) connects first motor starter (5-2) respectively, second motor starter (5-3), first motor starter (5-2), second motor starter (5-3) all connects air switch (5-1), first motor starter (5-2) connects compressor (1-1), and second motor starter (5-3) connects blower fan (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910018928A CN101670924A (en) | 2009-09-16 | 2009-09-16 | Movable energy-saving differential pressure precooling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910018928A CN101670924A (en) | 2009-09-16 | 2009-09-16 | Movable energy-saving differential pressure precooling device |
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| CN101670924A true CN101670924A (en) | 2010-03-17 |
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| CN200910018928A Pending CN101670924A (en) | 2009-09-16 | 2009-09-16 | Movable energy-saving differential pressure precooling device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464166A (en) * | 2010-11-03 | 2012-05-23 | 中国国际海运集装箱(集团)股份有限公司 | Refrigerated container cooler, refrigerated container and control method for refrigerated container cooler |
| CN102478334A (en) * | 2010-11-24 | 2012-05-30 | 珠海格力电器股份有限公司 | Energy regulation method and device of freezing unit as well as freezing system |
| CN102826308A (en) * | 2012-08-27 | 2012-12-19 | 大连冷冻机股份有限公司 | Mobile container type pressure-difference precooling equipment |
| CN103738608A (en) * | 2013-12-24 | 2014-04-23 | 澳柯玛股份有限公司 | Air-cooling type movable refrigerator |
| CN104039665A (en) * | 2012-01-05 | 2014-09-10 | 开利公司 | Rear door inflatable device for an integrated refrigerated container |
| CN104397146A (en) * | 2014-12-08 | 2015-03-11 | 天津商业大学 | Movable differential pressure pre-cooling device with cold source |
| CN104938613A (en) * | 2015-06-01 | 2015-09-30 | 国家农产品保鲜工程技术研究中心（天津） | Movable air duct type mixed-flow variable-frequency fruit and vegetable pre-cooler and application thereof |
| CN105034755A (en) * | 2015-08-14 | 2015-11-11 | 天津市傲景农业科技发展有限公司 | Fruit and vegetable producing area precooling vehicle |
| CN107410451A (en) * | 2017-05-25 | 2017-12-01 | 东台新时代畜牧机械设备有限公司 | A kind of quick-freezing fruit vegetables process cooling device |
| CN110199164A (en) * | 2017-01-23 | 2019-09-03 | 株式会社电装 | Temperature adjustment storage facilities |
| CN111248254A (en) * | 2020-03-25 | 2020-06-09 | 上海理工大学 | Mobile fruit and vegetable batch precooling device and method |
| CN106744958B (en) * | 2017-03-17 | 2023-09-19 | 长沙紫宸科技开发有限公司 | Cryogenic plunger type dry ice machine |
-
2009
- 2009-09-16 CN CN200910018928A patent/CN101670924A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464166A (en) * | 2010-11-03 | 2012-05-23 | 中国国际海运集装箱(集团)股份有限公司 | Refrigerated container cooler, refrigerated container and control method for refrigerated container cooler |
| CN102464166B (en) * | 2010-11-03 | 2017-03-15 | 中国国际海运集装箱(集团)股份有限公司 | Frozen products insulated container cold, frozen products insulated container and frozen products insulated container cold control method |
| CN102478334A (en) * | 2010-11-24 | 2012-05-30 | 珠海格力电器股份有限公司 | Energy regulation method and device of freezing unit as well as freezing system |
| CN104039665B (en) * | 2012-01-05 | 2016-11-09 | 开利公司 | Back door inflatable apparatus for integration frozen products insulated container |
| CN104039665A (en) * | 2012-01-05 | 2014-09-10 | 开利公司 | Rear door inflatable device for an integrated refrigerated container |
| US9587875B2 (en) | 2012-01-05 | 2017-03-07 | Carrier Corporation | Rear door inflatable device for an integrated refrigerated container |
| CN102826308A (en) * | 2012-08-27 | 2012-12-19 | 大连冷冻机股份有限公司 | Mobile container type pressure-difference precooling equipment |
| CN103738608A (en) * | 2013-12-24 | 2014-04-23 | 澳柯玛股份有限公司 | Air-cooling type movable refrigerator |
| CN104397146A (en) * | 2014-12-08 | 2015-03-11 | 天津商业大学 | Movable differential pressure pre-cooling device with cold source |
| CN104938613A (en) * | 2015-06-01 | 2015-09-30 | 国家农产品保鲜工程技术研究中心（天津） | Movable air duct type mixed-flow variable-frequency fruit and vegetable pre-cooler and application thereof |
| CN105034755A (en) * | 2015-08-14 | 2015-11-11 | 天津市傲景农业科技发展有限公司 | Fruit and vegetable producing area precooling vehicle |
| CN110199164A (en) * | 2017-01-23 | 2019-09-03 | 株式会社电装 | Temperature adjustment storage facilities |
| CN106744958B (en) * | 2017-03-17 | 2023-09-19 | 长沙紫宸科技开发有限公司 | Cryogenic plunger type dry ice machine |
| CN107410451A (en) * | 2017-05-25 | 2017-12-01 | 东台新时代畜牧机械设备有限公司 | A kind of quick-freezing fruit vegetables process cooling device |
| CN111248254A (en) * | 2020-03-25 | 2020-06-09 | 上海理工大学 | Mobile fruit and vegetable batch precooling device and method |
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Open date: 20100317 |