CN110292184A - Fruits and vegetables radio frequency-negative pressure combination drying device - Google Patents
Fruits and vegetables radio frequency-negative pressure combination drying device Download PDFInfo
- Publication number
- CN110292184A CN110292184A CN201810232514.8A CN201810232514A CN110292184A CN 110292184 A CN110292184 A CN 110292184A CN 201810232514 A CN201810232514 A CN 201810232514A CN 110292184 A CN110292184 A CN 110292184A
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- Prior art keywords
- negative
- pressure
- vegetables
- fruits
- radio
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- 238000001035 drying Methods 0.000 title claims abstract description 29
- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 24
- 239000013307 optical fiber Substances 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims abstract description 8
- 239000000498 cooling water Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005672 electromagnetic field Effects 0.000 claims 1
- 239000011888 foil Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000002860 competitive effect Effects 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract description 2
- 238000000053 physical method Methods 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- FRYDSOYOHWGSMD-UHFFFAOYSA-N [C].O Chemical compound [C].O FRYDSOYOHWGSMD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 235000021022 fresh fruits Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- -1 object Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
- A23N12/12—Auxiliary devices for roasting machines
- A23N12/125—Accessories or details
Abstract
It the present invention relates to the use of the dry fruits and vegetables of physical technique, in particular to a kind of radio frequency-negative pressure combination drying device.The device includes control panel, negative-pressure cup, the radio-frequency unit with top crown and bottom crown, header tank, optical fiber temperature measuring sensor, weighing sensor and pressure sensor.Radio-frequency unit is located in negative-pressure cup.Control panel controls servo motor and vacuum pump respectively by RS-485 bus to adjust pole plate spacing and vacuum degree.The top crown and bottom crown of the present apparatus are connected with high-frequency current and generate radio frequency, are evenly heated to the material being put between pole plate, and negative pressure system makes material complete drying under vacuum conditions, being capable of high degree raising rate of drying, reduction energy consumption and holding materials quality.By adjusting the two poles of the earth plate spacing and negative-pressure cup vacuum degree, for different material, radio-frequency power output is reached best, fruit and vegetable dryness is improved and detracts degree, pushes sci-tech competitive power and the sound development of China's dehydrated fruits and vegetables industry.
Description
Technical field
The invention patent relates to utilize the dry fresh fruit of vegetables of physical technique, in particular to a kind of radio frequency-negative pressure combination drying
Device.
Background technique
Fruits and vegetables is the essential food of the mankind, wherein containing a large amount of vitamin, organic acid, carbon hydrate
The nutritional ingredients such as object, pigment.Dehydration and drying technology can greatly prolong the fruits and vegetables shelf-life, reduce transport and the cost of storage.It is close
Year, dehydrated fruits and vegetables was increasingly by the welcome of consumer, it has also become one of the staple that China's export is earned foreign exchange.However, conventional dry
Dry technology the problems such as there are high energy consumption, heavily contaminated, low efficiency, poor uniformities.
Radio frequency (Radio Frequency, abridge RF) is a kind of high-frequency electromagnetic wave, frequency range 3kHz-
300MHz.Radio-frequency technique is a kind of novel physical heating method, can be penetrated into inside material, cause polar substances internally charged
The oscillation of ion migrates, and converts electrical energy into thermal energy, has the characteristics that quick, whole heating.Radio frequency-negative pressure combination drying skill
Art had not only combined the advantage that radio frequency quickly heats, but also the low feature of drying temperature during negative pressure drying is utilized, so as to
Further shorten drying time and improves the quality of dried product.In order to preferably study quality of fruits and vegetables during radio-frequency seasoning
Deterioration rule, illustrating reduces drying quality loss and the mechanism for improving energy utilization, captures fruits and vegetables radio frequency-negative pressure combination drying skill
Art, it is necessary to research and develop energy-efficient fruits and vegetables radio frequency-negative pressure combination drying equipment.
Summary of the invention
The invention patent proposes a kind of fruits and vegetables radio frequency-negative pressure combination drying device, including control panel, negative-pressure cup, has
The radio-frequency unit of top crown and bottom crown, lifting device, header tank, optical fiber temperature measuring sensor, weighing sensor and pressure sensing
Device, which is characterized in that it is intracavitary that the radio-frequency unit with top crown and bottom crown is located at negative-pressure cup, the top crown and lower pole
Plate is connected with high-frequency current；The lifting device includes ball-screw and servo motor, and the roller screw and servo motor connect
It connects, and is connect by nut with top crown；Roller screw is sealed by O-shaped rubber ring and negative-pressure cup；Pole plate spacing and vacuum degree
Etc. test parameters input on the control panel, control panel by RS-485 bus control respectively servo motor rotation adjust on
The lifting of pole plate, to change the solid-state relay adjusting negative-pressure cup for changing the distance between top crown and bottom crown and vacuum pump
Interior atmospheric pressure value.Atmospheric pressure value in the temperature of material, weight and negative-pressure cup is visited by being mounted on tetra- road optical fiber of negative pressure tank Nei
Head sensor, the weight sensor being fixed below bottom crown and the determination of pressure sensor being mounted on negative pressure top tank structure are simultaneously
It is sent to control panel in real time.The aqueous vapor that material generates in the drying process is condensed through negative pressure tank, by controlling seperating vale
Opening and closing, header tank is flowed into, to collect the aqueous vapor that sample generates in dry evaporation process, periodically to keep
Constant humidity in negative-pressure cup.
The characteristics of the invention patent and beneficial achievement: this fruits and vegetables radio frequency-negative pressure combination drying device top crown and lower pole
Plate is connected with high-frequency current and generates radio frequency, is evenly heated polarity material, negative pressure system makes material complete drying under vacuum conditions
Process can dramatically improve rate of drying, reduces energy consumption and keep materials quality.By adjusting the two poles of the earth plate spacing and bear
Vacuum degree in tank is pressed, for different material, radio-frequency power can be exported and reach best, improved fruit and vegetable dryness and detract degree, push away
The sci-tech competitive power of dynamic China's dehydrated fruits and vegetables industry and sound development.
Detailed description of the invention
Fig. 1 is fruits and vegetables radio frequency-negative pressure combination drying system schematic.
Specific embodiment
The invention patent is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, fruits and vegetables radio frequency-negative pressure combination drying device is mainly by control panel [1], negative-pressure cup [2], with upper
The radio-frequency unit [3] of pole plate and bottom crown, lifting device [4], header tank [5], optical fiber temperature measuring sensor [6], weighing sensor
[7] and pressure sensor [8] is main composition.The radio-frequency unit [3] is located at that negative-pressure cup [2] is intracavitary, and radio-frequency unit includes
Top crown [9] and bottom crown [10]；The control panel passes through RS-485 bus connection radio-frequency unit [3], optical fiber temperature-measurement sensing
Device [6], weighing sensor [7] and pressure sensor [8], and receive the analog signal sent with storage sensor；Negative-pressure cup
It further include vacuum pump [11], vacuum valve [12], relief valve [13] and cooling water tank [14], vacuum pump [11] connects cooling water tank
[14], to realize the sealing of vacuum pump [11], and pass through vacuum valve [12] connection negative-pressure cup [2], negative-pressure cup [2] internal pressure
Value is detected and is sent to control panel [1] by pressure sensor [8],.The lifting device [4] includes ball-screw [15] and watches
It takes motor [16], top crown [9] is connect by nut [17] with ball-screw [15], and roller screw [15] passes through O-ring seal
It being connect with negative-pressure cup [2], control panel [1] adjusts the lifting of top crown [9] by driving the rotation of servo motor [16], from
And change the distance between top crown [9] and bottom crown [10]；The bottom joint steel pipe [18] of tank body, by periodically
The open and close for controlling seperating vale [19], are collected into header tank [20] for the aqueous vapor in negative-pressure cup；It is installed in above-mentioned rack
There are land wheel [21], facilitates the movement of equipment.
Specific operating process is as follows: fruits and vegetables sample [22] is placed on bottom crown [10], and the probe of optical fiber temperature measuring sensor connects
It connects sample [22], closes negative-pressure cup [2] door.Test parameters is pre-set on the control panel, mainly includes between pole plate
Away from, target vacuum and maximum sample temperature.It closes relief valve [13], opens vacuum valve [12] and vacuum pump [11], work as tank body
When interior atmospheric pressure value reaches default value, radio frequency is opened.The temperature value and weight value of sample pass through fibre optical sensor [6] respectively and claim
Retransmit sensor [7] measurement and record；It is condensed through tank body due to a large amount of aqueous vapors that sample evaporation generates in drying process, passes through steel
It manages [18] and seperating vale [19] flows into header tank [20].After drying test, successively close RF switch, vacuum pump [11] and
Vacuum valve [12] is opened relief valve [13], after pressure value in tank body restores normal atmosphere (An), is opened negative-pressure cup [2] door, is taken out
Sample [22] closes general supply.
For the above tests novel actual implementation according to this, through the above description, correlation test personnel
Various various forms of changes can be made in the case where not departing from the novel spirit and scope of this test completely.It is all without prejudice to the present invention
The various modifications or variation that patent spirit is engaged in belong to the scope that the invention patent is intended to protect.
Claims (6)
1. a kind of fruits and vegetables radio frequency-negative pressure combination drying device, including control panel, negative-pressure cup, with top crown and bottom crown
Radio-frequency unit, lifting device, header tank, optical fiber temperature measuring sensor, weighing sensor and pressure sensor, which is characterized in that institute
It states radio-frequency unit and is located at that negative-pressure cup is intracavitary, and the top crown and bottom crown are connected with high-frequency current.
2. a kind of fruits and vegetables radio frequency-negative pressure combination drying device according to claim 1, which is characterized in that control panel is adopted
It is connect with RS-485 bus with radio-frequency unit, optical fiber temperature measuring sensor, weighing sensor and pressure sensor, and receives and store
Sensor sends back the analog signal come.
3. a kind of fruits and vegetables radio frequency-negative pressure combination drying device according to claim 1, which is characterized in that negative-pressure cup also wraps
Vacuum pump, vacuum valve, relief valve and cooling water tank are included, vacuum pump connects cooling water tank, realizes the sealing of vacuum pump, and by true
Empty valve connects negative-pressure cup, to adjust the atmospheric pressure value in negative-pressure cup.
4. a kind of fruits and vegetables radio frequency-negative pressure combination drying device according to claim 1, which is characterized in that the lifting dress
It sets including ball-screw and servo motor, the roller screw is connect with servo motor, and is connect by nut with top crown；Rolling
Column lead screw is sealed by O-shaped rubber ring and negative-pressure cup；Control panel adjusts the liter of top crown by the rotation of driving servo motor
Drop changes the distance between top crown and bottom crown to change.
5. a kind of fruits and vegetables radio frequency-negative pressure combination drying device according to claim 1, which is characterized in that the weighing passes
Sensor foil sealing connect to shield the interference of electromagnetic field of high frequency with bottom crown, and is fixed on the bottom of negative-pressure cup, realizes
Weighing to sample.
6. a kind of fruits and vegetables radio frequency-negative pressure combination drying device according to claim 1, which is characterized in that the negative-pressure cup
It is connect by steel pipe with header tank, by controlling the opening and closing of seperating vale, can periodically collect sample and be steamed dry
The aqueous vapor generated during hair, to keep humidity constant in negative-pressure cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810232514.8A CN110292184A (en) | 2018-03-21 | 2018-03-21 | Fruits and vegetables radio frequency-negative pressure combination drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810232514.8A CN110292184A (en) | 2018-03-21 | 2018-03-21 | Fruits and vegetables radio frequency-negative pressure combination drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110292184A true CN110292184A (en) | 2019-10-01 |
Family
ID=68025309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810232514.8A Pending CN110292184A (en) | 2018-03-21 | 2018-03-21 | Fruits and vegetables radio frequency-negative pressure combination drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110292184A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111011471A (en) * | 2019-12-14 | 2020-04-17 | 江南大学 | Multispectral-radio frequency-hot air fruit and vegetable drying detection device and method |
| CN111937953A (en) * | 2020-07-19 | 2020-11-17 | 北京工商大学 | Combined drying method of mulberries |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469987A (en) * | 2000-10-19 | 2004-01-21 | Vacuum port positioning for vacuum drying systems | |
| RU2322082C1 (en) * | 2006-08-25 | 2008-04-20 | Дмитрий Викторович Грин | Method for extracting from household wastes of food wastes and processing food wastes into feed pulp, apparatus for performing the same, and flow-through reactor of apparatus for preparing of aseptic solution |
| TW201309195A (en) * | 2011-08-16 | 2013-03-01 | Doctor Agriculture Inc | Continuous disinfestation of rice insects with radio frequency equipment |
| KR20150131599A (en) * | 2014-05-15 | 2015-11-25 | 조영준 | System and method for controlling coffee roasting |
| CN205233406U (en) * | 2015-09-01 | 2016-05-18 | 江苏省农业科学院 | Automatic wet type vacuum of accuse control by temperature change microwave drying device |
| CN208549956U (en) * | 2018-03-21 | 2019-03-01 | 西北农林科技大学 | Fruits and vegetables radio frequency-negative pressure combination drying device |
-
2018
- 2018-03-21 CN CN201810232514.8A patent/CN110292184A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469987A (en) * | 2000-10-19 | 2004-01-21 | Vacuum port positioning for vacuum drying systems | |
| RU2322082C1 (en) * | 2006-08-25 | 2008-04-20 | Дмитрий Викторович Грин | Method for extracting from household wastes of food wastes and processing food wastes into feed pulp, apparatus for performing the same, and flow-through reactor of apparatus for preparing of aseptic solution |
| TW201309195A (en) * | 2011-08-16 | 2013-03-01 | Doctor Agriculture Inc | Continuous disinfestation of rice insects with radio frequency equipment |
| KR20150131599A (en) * | 2014-05-15 | 2015-11-25 | 조영준 | System and method for controlling coffee roasting |
| CN205233406U (en) * | 2015-09-01 | 2016-05-18 | 江苏省农业科学院 | Automatic wet type vacuum of accuse control by temperature change microwave drying device |
| CN208549956U (en) * | 2018-03-21 | 2019-03-01 | 西北农林科技大学 | Fruits and vegetables radio frequency-negative pressure combination drying device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111011471A (en) * | 2019-12-14 | 2020-04-17 | 江南大学 | Multispectral-radio frequency-hot air fruit and vegetable drying detection device and method |
| CN111937953A (en) * | 2020-07-19 | 2020-11-17 | 北京工商大学 | Combined drying method of mulberries |
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