CN106721880A - The sterilizing methods and system of a kind of use high-pressure pulse electric treatment agricultural product - Google Patents
The sterilizing methods and system of a kind of use high-pressure pulse electric treatment agricultural product Download PDFInfo
- Publication number
- CN106721880A CN106721880A CN201611032575.7A CN201611032575A CN106721880A CN 106721880 A CN106721880 A CN 106721880A CN 201611032575 A CN201611032575 A CN 201611032575A CN 106721880 A CN106721880 A CN 106721880A
- Authority
- CN
- China
- Prior art keywords
- pulse
- voltage
- agricultural product
- igbt
- electronic switches
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 103
- 230000001954 sterilising effect Effects 0.000 title description 35
- 230000008569 process Effects 0.000 claims abstract description 77
- 238000004659 sterilization and disinfection Methods 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 210000001367 artery Anatomy 0.000 claims description 4
- 210000003462 vein Anatomy 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims 3
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 235000013305 food Nutrition 0.000 abstract description 20
- 235000016709 nutrition Nutrition 0.000 abstract description 12
- 239000004615 ingredient Substances 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 235000021251 pulses Nutrition 0.000 description 146
- 230000000694 effects Effects 0.000 description 18
- 230000005684 electric field Effects 0.000 description 18
- 241000894006 Bacteria Species 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 244000046052 Phaseolus vulgaris Species 0.000 description 4
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 4
- 240000004922 Vigna radiata Species 0.000 description 4
- 235000010721 Vigna radiata var radiata Nutrition 0.000 description 4
- 235000011469 Vigna radiata var sublobata Nutrition 0.000 description 4
- 230000004899 motility Effects 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 239000003242 anti bacterial agent Substances 0.000 description 3
- 229940088710 antibiotic agent Drugs 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000796 flavoring agent Substances 0.000 description 3
- 235000019634 flavors Nutrition 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001953 sensory effect Effects 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
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/32—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with electric currents without heating effect
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Landscapes
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
The present invention relates to the method and system that a kind of use high-pressure pulse electric processes agricultural product, one of which includes step S1 using the method that high-pressure pulse electric processes agricultural product：Pending agricultural product are placed in the high-voltage pulse process chamber of the system of high-pressure pulse electric treatment agricultural product；Step S2：Type according to agricultural product obtains the pulse output voltage of high-pressure pulse electric；The pulse width and pulse frequency of high-pressure pulse electric are adjusted, agricultural product is fully processed；Step S3：Agricultural product after treatment are cooled down.The system for processing agricultural product using high-pressure pulse electric includes that high-voltage pulse occurs module, pulse boosting voltage changing module and high-voltage pulse process chamber；There is module and be connected to pulse boosting voltage changing module in the high-voltage pulse, the pulse boosting voltage changing module is connected to high-voltage pulse process chamber；The present invention effectively can sterilize to agricultural product, and process time is short, energy consumption is low, is effectively protected the features such as the nutritional ingredient and natural color, smell and taste of food.
Description
Technical field
The invention belongs to electronic technology field, a kind of method that use high-pressure pulse electric processes agricultural product is specifically related to
And system.
Background technology
At present, with the continuous improvement of living standard and health consciousness, the antibiotic and sterilizing idea of people is more and more stronger, especially
It is the quality requirement more and more higher to agricultural product such as cereal, veterinary antibiotics.Due to disease and the drug-fast enhancing of insect pest, agricultural production
Pathogenic microorganism or parasite egg are often carried in product, health will be had a strong impact on after directly eating.Therefore, to veterinary antibiotics
Cleaned, sterilize it is extremely important.At present, the conventional machining techniques for being used in ventures in agroindustry such as boiling, pasteurize, salt down
Institutional framework of the method and system to agricultural product, sensory properties and the nutritional ingredient that system, microwave etc. process agricultural product have very big
Destructiveness, natural color and nutrition in food prevent the food after being processed from keeping original local flavor, agricultural production
The original quality of product and nutritive value loss are very big.With the change of people's consumption view, produced using these process technologies
Food can not increasingly meet the requirement of consumer.So being badly in need of a kind of efficient process agriculture that can preserve the original quality of food
The sterilizing methods of product replace existing traditional sterilizing methods.
The content of the invention
For the defect of prior art, the present invention is intended to provide one kind according to claim 1 uses high-voltage pulse
The sterilizing methods of electric field treatment agricultural product, can be to sterilizing in agricultural product, and process time is short, energy consumption is low, effectively protects
The features such as the nutritional ingredient and natural color, smell and taste of food are protected.
Technical scheme is as follows：In a first aspect, processing agriculture using high-pressure pulse electric the invention provides one kind
The method of product, comprises the following steps：
Step S1：Pending agricultural product are placed in the high-voltage pulse process chamber of the system of high-pressure pulse electric treatment agricultural product
In；
Step S2：Type according to agricultural product obtains the pulse output voltage of high-pressure pulse electric；Regulation high-voltage pulse electric
The pulse width and pulse frequency of field, make agricultural product fully process；
Step S3：Agricultural product after treatment are cooled down.
Further, the step S2 includes：
Step S21：The industrial-frequency alternating current of 220V/50HZ is raised voltage into treatment agriculture by pulse boosting voltage changing module
High voltage needed for product；
Step S22：Industrial-frequency alternating current to being input into carries out bridge rectifier, obtains DC high voltage；
Step S23：The DC high voltage that will be obtained, charges to the first pulsed capacitance C1；
Step S24：An IGBT electronic switches and the 2nd IGBT electronic switches is controlled to replace by IGBT driver elements
Break-make obtains pulse high-voltage；And discharged the pulse high-voltage using the second pulsed capacitance C2 and the 3rd pulsed capacitance C3
Onto pending agricultural product.
Further, the step S24 includes：
Debug the driving signal frequency and pulse width of IGBT driver elements；
Control IGBT driver elements provide forward and reverse output voltage, make an IGBT electronic switches and the 2nd IGBT
The alternate turn-on and turn-off of electronic switch obtain the pulse high-voltage that two-way output waveform phase differs 180 ° respectively；
An IGBT electronic switches is connected with the second pulsed capacitance C2, IGBT electricity is controlled by IGBT driver elements
Sub switch turn-on and turn-off, pending agriculture will be discharged into by pulse high-voltage using the charging and discharging of the second pulsed capacitance C2 all the way
On product；
The 2nd IGBT electronic switches is connected with the 3rd pulsed capacitance C3, the 2nd IGBT electricity is controlled by IGBT driver elements
Sub switch turn-on and turn-off, pending agriculture will be discharged into by pulse high-voltage using the charging and discharging of the 3rd pulsed capacitance C3 all the way
On product.
Agricultural product effectively can be entered by the method that a kind of use high-pressure pulse electric that the present invention is provided processes agricultural product
Row sterilization treatment, and process time is short, energy consumption is low, is effectively protected the spies such as the nutritional ingredient and natural color, smell and taste of food
Levy.
Sterilization effect is good, by after impulse electric field treatment, the enzyme and Microbial survival rate in food are almost nil.
Energy consumption is low, and the energy of high-voltage pulse electric field sterilization technology consumption is with heat sterilization 40% or so.
The nutritional ingredient of food is not destroyed, and flavor effect is good, more can by after high-voltage pulse electric field sterilization treatment
Effectively preserve the nutritional ingredient (such as protein and vitamin) in food.
Sterilizing speed is fast, and high-voltage pulse electric field sterilization can complete whole processing procedure in the time of Microsecond grade, and bar
The sterilized sterilization time of scholar is at least more than 10 seconds.
Disposable after sterilizing, after impulse electric field treatment, food temperature rise change is little, relatively beneficial to the fresh-keeping of food.
Without secondary environmental pollution and three wastes problem.
Second aspect, the invention provides the system that a kind of use high-pressure pulse electric processes agricultural product, including pulse hair
Raw module, pulse boosting voltage changing module and high-voltage pulse process chamber；
The pulse generating module is connected to pulse boosting voltage changing module, and the pulse boosting voltage changing module is connected to high pressure
Pulse process chamber；
The pulse generating module is used to produce the pulse voltage of alternation, it include rectification unit and filter unit and
Inversion unit；
The inversion unit includes IGBT driver elements and IGBT electronic switches；
The rectification unit includes the first diode D1, the second diode D2, the full-bridge rectification of the 3rd diode D3 compositions
Circuit, it is used to complete the full-bridge rectification to the alternating current of 220V/50HZ；
The filter unit includes pulsed capacitance, and it is used to be filtered the direct current obtained after full-bridge rectification；
The high-tension pulse that the pulse boosting voltage changing module is used for needed for being converted into processing agricultural product by the pulse voltage of alternation
Punching, it includes Industrial Frequency Transformer and bridge rectifier network；
The high-voltage pulse process chamber is used to that the high-pressure pulse electric for coming from pulsed capacitance will to be received, and is acted on
It is placed on the pending agricultural product in the high-voltage pulse process chamber.
Further, the pulse boosting voltage changing module also includes current-limiting resistance, the current-limiting resistance and pulsed capacitance phase
Even, its electric current for being used to stablize the pulse boosting voltage changing module.
Further, described IGBT electronic switches include an IGBT electronic switches and the 2nd IGBT electronic switches；Institute
State an IGBT electronic switches to be connected in parallel with the 2nd IGBT electronic switches, and be respectively connecting to high-voltage pulse process chamber；
The first IGBT electronic switches and the 2nd IGBT electronic switches are used for the pulse by moment of its closure
The electric energy of the storage of electric capacity is discharged in the high-voltage pulse process chamber, and forms high-tension pulse in the high-voltage pulse process chamber
Electric field action is rushed in the pending agricultural product.
Further, the pulsed capacitance includes the first pulsed capacitance C1, the second pulsed capacitance C2, the 3rd pulsed capacitance
C3,
The first pulsed capacitance C1 is used to receive and store through the power frequency high voltage after full-bridge rectification, and by IGBT electricity
Sub switch charges to the second pulsed capacitance C2 and the 3rd pulsed capacitance C3 respectively；
The second pulsed capacitance C2 is connected to high-voltage pulse process chamber, the 3rd arteries and veins by an IGBT electronic switches
Rush electric capacity C3 and high-voltage pulse process chamber, the second pulsed capacitance C2 and the 3rd pulse are connected to by the 2nd IGBT electronic switches
Electric capacity C3 is entered to high-voltage pulse process chamber respectively by an IGBT electronic switches with the alternate conduction of the 2nd IGBT electronic switches
Row charging and discharging is operated.
Further, an IGBT electronic switches and the 2nd IGBT electronic switches are respectively connecting to the IGBT drivings
Unit；The IGBT driver elements are used to provide the driving voltage of forward and reverse, control an IGBT electronic switches with
2nd IGBT electronic switch timesharing is opened and closed, output two-way frequency, the adjustable bipolarity high-voltage pulse of pulse width.
Further, the current-limiting resistance includes the first current-limiting resistance R1 and the second current-limiting resistance R2, first current limliting
Resistance R1 and the first current-limiting resistance R2 are respectively connecting to the first pulsed capacitance C1, and it is used in stable pulse boosting voltage changing module
Voltage and current.
Further, the high-voltage pulse process chamber and the second pulsed capacitance C2, IGBT electronic switches composition first
Loop, and constitute second servo loop with the 3rd pulsed capacitance C3, the 2nd IGBT electronic switches；
When an IGBT electronic switches are turned on, the 2nd IGBT electronic switches disconnect, and the second pulsed capacitance C2 is through the
Primary Ioops discharge to high-voltage pulse process chamber；
When the 2nd IGBT electronic switches are turned on, an IGBT electronic switches disconnect, and the 3rd pulsed capacitance C3 is through the
Secondary circuit discharges to high-voltage pulse process chamber.
The system that a kind of use high-pressure pulse electric that the present invention is provided processes agricultural product, using IGBT electronic switches and
The bipolarity high-voltage pulse that pulsed capacitance is produced is discharged in high-voltage pulse process chamber, acts on pending agricultural product.The system
System driving power is small, switching speed is fast.The IGBT control units of the system can provide forward and reverse two kinds of output voltages, make
IGBT electronic switches reliably turn-on and turn-off, positive output voltage has steeper rising edge, and reverse output voltage is by steeper
Trailing edge, extends the service life of IGBT electronic switches, and input and output time delay is small.180 ° of output phases of the difference that it is produced
The bipolarity high-voltage pulse of position effectively can carry out sterilization to agricultural product, and its effect is far above common unipolar pulse ripple,
And process time is short, bactericidal effect is good, energy consumption is low, is effectively protected nutritional ingredient and natural color, smell and taste of agricultural product etc.
Feature.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described.In all of the figs, similar element
Or the general reference by being similar in part is identified.In accompanying drawing, each element or part might not draw according to actual ratio.
Fig. 1 shows a kind of flow of the method for use high-pressure pulse electric treatment agricultural product provided in an embodiment of the present invention
Figure；
Fig. 2 shows a kind of structure of the system of use high-pressure pulse electric treatment agricultural product provided in an embodiment of the present invention
Figure；
Fig. 3 shows a kind of circuit of the system of use high-pressure pulse electric treatment agricultural product provided in an embodiment of the present invention
Figure.
Specific embodiment
With reference to specific embodiment to a kind of method of use high-pressure pulse electric treatment agricultural product of the invention and
System is described further：
Referring to shown in accompanying drawing 1, the embodiment of the invention provides a kind of method that use high-pressure pulse electric processes agricultural product,
Comprise the following steps：
Step S1：Pending agricultural product are placed in the high-voltage pulse process chamber of the system of high-pressure pulse electric treatment agricultural product
In；
Step S2：Type according to agricultural product obtains the pulse output voltage of high-pressure pulse electric；Regulation high-voltage pulse electric
The pulse width and pulse frequency of field, make agricultural product fully process；
Step S3：Agricultural product after treatment are cooled down.
In the present embodiment, the step S2 includes：
Step S21：The industrial-frequency alternating current of 220V/50HZ is raised voltage into treatment agriculture by pulse boosting voltage changing module
High voltage needed for product；
Step S22：Industrial-frequency alternating current to being input into carries out bridge rectifier, obtains DC high voltage；
Step S23：The DC high voltage that will be obtained, charges to the first pulsed capacitance C1；
Step S24：An IGBT electronic switches and the 2nd IGBT electronic switches is controlled to replace by IGBT driver elements
Break-make obtains pulse high-voltage；And discharged the pulse high-voltage using the second pulsed capacitance C2 and the 3rd pulsed capacitance C3
Onto pending agricultural product.
In the present embodiment by power network be input into power frequency 220V alternating currents it is rectified after become low-voltage DC, using IGBT electricity
Sub switch and the full bridge rectifier alternate conduction in the presence of trigger pulse, form the pulse voltage of alternation, through pulse
Boost after the boosting of voltage changing module, export high-frequency pulse voltage.High voltage pulse is obtained using the method for pulsed capacitance discharge and recharge,
Extremely steep pulse front edge can be obtained, instantaneously can be formed to pending agricultural product in the momentary pulse electric capacity of IGBT switch closures
High-voltage pulse electric field, plays sterilization functions.
In the present embodiment, the step S24 includes：
Debug the driving signal frequency and pulse width of IGBT driver elements；
Control IGBT driver elements provide forward and reverse output voltage, make an IGBT electronic switches and the 2nd IGBT
The alternate turn-on and turn-off of electronic switch obtain the pulse high-voltage that two-way output waveform phase differs 180 ° respectively；
An IGBT electronic switches is connected with the second pulsed capacitance C2, IGBT electricity is controlled by IGBT driver elements
Sub switch turn-on and turn-off, pending agriculture will be discharged into by pulse high-voltage using the charging and discharging of the second pulsed capacitance C2 all the way
On product；
The 2nd IGBT electronic switches is connected with the 3rd pulsed capacitance C3, the 2nd IGBT electricity is controlled by IGBT driver elements
Sub switch turn-on and turn-off, pending agriculture will be discharged into by pulse high-voltage using the charging and discharging of the 3rd pulsed capacitance C3 all the way
On product.
In the present embodiment, the high-voltage pulse provided to pending agricultural product is the twocouese high-tension pulse close to square wave
Punching, this kind of pulse wave (such as Exponential Decay Wave, Sasser) in other wave modes are similar to is stronger to the fatal rate of microorganism, and energy
Amount utilization rate is high.
It is right respectively using the method the invention provides a kind of use high-pressure pulse electric treatment agricultural product in the present embodiment
The agricultural products of bean sprouts, rice, mung bean etc. three carry out treatment experiment, the voltage of high-pressure pulse electric are adjusted, to the embodiment of the present invention
Sterilization effect detected.Its effect is as shown in table 1.Its sterilization effect represents that residual motility rate can use formula lgS with residual motility rate
=lg (N/N0) represent.Wherein NOIt is the total number of bacteria of impulse electric field before processing, N is the total number of bacteria after impulse electric field treatment.
| Pulse voltage/frequency | 1KV/50HZ | 2KV/50HZ | 3KV/50HZ |
| Rice | -0.3 | -0.89 | -1.89 |
| Bean sprouts | -0.23 | -0.78 | -1.23 |
| Mung bean | -0.31 | -0.73 | -1.14 |
Table 1
From the experimental result of table 1, impulse electric field strength is lifted in the case where other specification is constant, the residual work of its bacterium
Rate reduction, sterilization effect is improved.
Further, in the present embodiment, the frequency of high-pressure pulse electric is adjusted, the sterilization effect to the embodiment of the present invention enters
Row detection.Its effect is as shown in table 2.
| Pulse voltage/frequency | 1KV/50HZ | 1KV/80HZ | 1KV/120HZ |
| Rice | -0.3 | -0.53 | -0.78 |
| Bean sprouts | -0.23 | -0.48 | -0.83 |
| Mung bean | -0.31 | -0.56 | -1.04 |
Table 2
From the experimental result of table 2, the frequency of impulse electric field is lifted in the case where other specification is constant, its bacterium is residual
Motility rate reduction, sterilization effect is improved.
Further, in the present embodiment, the size of the second pulsed capacitance C2 and the 3rd pulsed capacitance C3 is adjusted, to the present invention
The sterilization effect of embodiment is detected.Its effect is as shown in table 3.
| Pulsed capacitance | 0.5μF | 1μF | 1.5μF |
| Rice | -0.3 | -0.78 | -1.32 |
| Bean sprouts | -0.23 | -0.67 | -1.15 |
| Mung bean | -0.31 | -0.89 | -1.36 |
Table 3
From the experimental result of table 3, the second pulsed capacitance C2 and the 3rd arteries and veins are lifted in the case where other specification is constant
The size of electric capacity C3 is rushed, the residual motility rate reduction of its bacterium, sterilization effect is improved.Because by increase the second pulsed capacitance C2 and
The capacity of the 3rd pulsed capacitance C3, increases the pulsewidth of the high-voltage pulse for acting on high-voltage pulse process chamber, therefore improves and go out
Bacterium effect.
Experimental result by table 1, table 2 and table 3 is visible, and one kind that the present invention is provided is processed using high-pressure pulse electric
Agricultural product can effectively be gone out by the method for agricultural product by adjusting voltage, frequency and the pulsewidth of high-pressure pulse electric
Bacterium is processed, and process time is short, energy consumption is low, is effectively protected the features such as the nutritional ingredient and natural color, smell and taste of food.Its
Sterilization effect is good, by after impulse electric field treatment, the Microbial survival rate in food is almost nil.
Referring to shown in accompanying drawing 2 and accompanying drawing 3, the embodiment of the invention provides one kind agricultural product are processed using high-pressure pulse electric
System, the invention provides the system that a kind of use high-pressure pulse electric processes agricultural product, including pulse generating module, pulse
Boosting voltage changing module and high-voltage pulse process chamber；
The pulse generating module includes IGBT driver elements, IGBT electronic switches and pulsed capacitance；
The pulse generating module is connected to pulse boosting voltage changing module, and the pulse boosting voltage changing module is connected to high pressure
Pulse process chamber；
The pulse generating module is used to produce the pulse voltage of alternation to export；It include rectification unit, filter unit with
And inversion unit；
The high-tension pulse that the pulse boosting voltage changing module is used for needed for being converted into processing agricultural product by the pulse voltage of alternation
Punching, it includes Industrial Frequency Transformer and bridge rectifier network；
The high-voltage pulse process chamber is used to that the high-pressure pulse electric for coming from pulsed capacitance will to be received, and is acted on
It is placed on the pending agricultural product in the high-voltage pulse process chamber.
In the present embodiment, the pulse boosting voltage changing module also includes current-limiting resistance, the current-limiting resistance and pulsed capacitance
It is connected, its electric current for being used to stablize the pulse boosting voltage changing module.
In the present embodiment, described IGBT electronic switches include an IGBT electronic switches and the 2nd IGBT electronic switches；
The first IGBT electronic switches are connected in parallel with the 2nd IGBT electronic switches, and are respectively connecting to high-voltage pulse process chamber；
The first IGBT electronic switches and the 2nd IGBT electronic switches are used for the pulse by moment of its closure
The electric energy of the storage of electric capacity is discharged in the high-voltage pulse process chamber, and forms high-tension pulse in the high-voltage pulse process chamber
Electric field action is rushed in the pending agricultural product.
In the present embodiment, the pulsed capacitance includes the first pulsed capacitance C1, the second pulsed capacitance C2, the 3rd pulsed capacitance
C3,
The first pulsed capacitance C1 is used to receive and store through the power frequency high voltage after full-bridge rectification, and by IGBT electricity
Sub switch charges to the second pulsed capacitance C2 and the 3rd pulsed capacitance C3 respectively；
The second pulsed capacitance C2 is connected to high-voltage pulse process chamber, the 3rd arteries and veins by an IGBT electronic switches
Rush electric capacity C3 and high-voltage pulse process chamber, the second pulsed capacitance C2 and the 3rd pulse are connected to by the 2nd IGBT electronic switches
Electric capacity C3 is entered to high-voltage pulse process chamber respectively by an IGBT electronic switches with the alternate conduction of the 2nd IGBT electronic switches
Row charging and discharging is operated.
In the present embodiment, an IGBT electronic switches and the 2nd IGBT electronic switches are respectively connecting to the IGBT and drive
Moving cell；The IGBT driver elements are used to provide the driving voltage of forward and reverse, control an IGBT electronic switches
Open and close with the 2nd IGBT electronic switch timesharing, output two-way frequency, the adjustable bipolarity high-voltage pulse of pulse width.
Using SCALE serial 2S315A-33 chips, the chip can be applied IGBT driver elements described in the present embodiment
In the IGBT electronic switches of pressure-resistant 3300V, it includes two-way IGBT drive circuit, can be used to drive two-way IGBT electronic switches.
Wherein two paths of signals independent control is received per road IGBT electronic switches.The frequency-adjustable scope of its output signal is 50HZ to 300HZ,
Pulse width is 5 μ of μ s to 20 s.
The bipolarity high-voltage pulse provided in the present embodiment can be electrically charged molecular motion and produce and alternately changes, and accelerate thin
The rupture of after birth causes the inactivation of microorganism, and effect is better than unipolar high voltage pulse.
In the present embodiment, the current-limiting resistance includes the first current-limiting resistance R1 and the second current-limiting resistance R2, first limit
Leakage resistance R1 and the first current-limiting resistance R2 are respectively connecting to the first pulsed capacitance C1, and it is used in stable pulse boosting voltage changing module
Voltage and current.
In the present embodiment, the high-voltage pulse process chamber and the second pulsed capacitance C2, IGBT electronic switches composition the
Primary Ioops, and constitute second servo loop with the 3rd pulsed capacitance C3, the 2nd IGBT electronic switches；
When an IGBT electronic switches are turned on, the 2nd IGBT electronic switches disconnect, and the second pulsed capacitance C2 is through the
Primary Ioops discharge to high-voltage pulse process chamber；
When the 2nd IGBT electronic switches are turned on, an IGBT electronic switches disconnect, and the 3rd pulsed capacitance C3 is through the
Secondary circuit discharges to high-voltage pulse process chamber.
First pulsed capacitance selection 40KV/5 μ F in the present embodiment, the parameter selection 30KV/1 μ F of the second pulsed capacitance, the
The parameter selection 30KV/1 μ F of three pulsed capacitances.
The second pulsed capacitance and the alternating discharge of the 3rd pulsed capacitance provided in the present embodiment, can be processed high-voltage pulse
Room release forward position is steep, the bipolarity high-voltage pulse of pulse width.
A kind of system of use high-pressure pulse electric treatment agricultural product that the present invention is provided effectively can be entered to agricultural product
Row sterilization treatment, and process time is short, energy consumption is low, such as veterinary antibiotics, meat, cereal can use the embodiment of the present invention to provide
Method and system processed.
The method and system for processing agricultural product using a kind of use high-pressure pulse electric provided in an embodiment of the present invention are effective
Protect the features such as the nutritional ingredient and natural color, smell and taste of food.Sterilization effect is good, after impulse electric field is processed, food
In enzyme and Microbial survival rate it is almost nil.
The system energy consumption of use high-pressure pulse electric treatment agricultural product provided in an embodiment of the present invention is low, high-pressure pulse electric
The energy of sterilization technology consumption is 40% or so with heat sterilization.The nutritional ingredient of food is not destroyed, and flavor effect
It is good, nutritional ingredient in it more effectively can preserve food after high-voltage pulse electric field sterilization treatment (such as protein and Wei Sheng
Element).Sterilizing speed is fast, and high-voltage pulse electric field sterilization can complete whole processing procedure in the time of Microsecond grade, and bus is killed
The sterilization time of bacterium is at least more than 10 seconds.Disposable after sterilizing, after impulse electric field treatment, food temperature rise change is little, more sharp
In the fresh-keeping of food.Without secondary environmental pollution and three wastes problem.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention
Under, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as in the absence of structure punching
Prominent, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The invention is not limited in text
Disclosed in specific embodiment, but all technical schemes including falling within the scope of the appended claims.
Claims (10)
1. a kind of method that use high-pressure pulse electric processes agricultural product, it is characterised in that comprise the following steps：
Step S1：Pending agricultural product are placed in high-voltage pulse process chamber；
Step S2：Type according to agricultural product obtains the pulse output voltage of high-pressure pulse electric；Regulation high-pressure pulse electric
Pulse width and pulse frequency, make agricultural product fully process；
Step S3：Agricultural product after treatment are cooled down.
2. the method that a kind of use high-pressure pulse electric according to claim 1 processes agricultural product, it is characterised in that described
Step S2 includes：
Step S21：The industrial-frequency alternating current of 220V/50HZ is raised voltage into treatment agricultural product by pulse boosting voltage changing module
Required high voltage；
Step S22：Industrial-frequency alternating current to being input into carries out bridge rectifier, obtains DC high voltage；
Step S23：The DC high voltage that will be obtained, charges to the first pulsed capacitance C1；
Step S24：An IGBT electronic switches and the 2nd IGBT electronic switches is controlled to replace break-make by IGBT driver elements
Obtain pulse high-voltage；And the pulse high-voltage is discharged into and is treated using the second pulsed capacitance C2 and the 3rd pulsed capacitance C3
On treatment agricultural product.
3. the method that a kind of use high-pressure pulse electric according to claim 2 processes agricultural product, it is characterised in that：It is described
Step S24 includes：
Debug the driving signal frequency and pulse width of IGBT driver elements；
Control IGBT driver elements provide forward and reverse output voltage, make an IGBT electronic switches and the 2nd IGBT electronics
Switch alternate turn-on and turn-off and obtain the pulse high-voltage that two-way output waveform phase differs 180 ° respectively；
An IGBT electronic switches is connected with the second pulsed capacitance C2, an IGBT electronic cuttings are controlled by IGBT driver elements
Turn-on and turn-off are closed, pending agricultural product will be discharged into by pulse high-voltage all the way using the charging and discharging of the second pulsed capacitance C2
On；
The 2nd IGBT electronic switches is connected with the 3rd pulsed capacitance C3, the 2nd IGBT electronic cuttings are controlled by IGBT driver elements
Turn-on and turn-off are closed, pending agricultural product will be discharged into by pulse high-voltage all the way using the charging and discharging of the 3rd pulsed capacitance C3
On.
4. the system that a kind of use high-pressure pulse electric processes agricultural product, it is characterised in that including pulse generating module, pulse liter
Buckling die block and high-voltage pulse process chamber；
The pulse generating module is connected to pulse boosting voltage changing module, and the pulse boosting voltage changing module is connected to high-voltage pulse
Process chamber；
The pulse generating module is used to produce the pulse voltage of alternation, and it includes rectification unit and filter unit and inversion
Unit；
The inversion unit includes IGBT driver elements and IGBT electronic switches；
The rectification unit includes the first diode D1, the second diode D2, the full bridge rectifier of the 3rd diode D3 compositions,
It is used to complete the full-bridge rectification to the alternating current of 220V/50HZ；
The filter unit includes pulsed capacitance, and it is used to be filtered the direct current obtained after full-bridge rectification；
The high-voltage pulse that the pulse boosting voltage changing module is used for needed for being converted into processing agricultural product by the pulse voltage of alternation, its
Including Industrial Frequency Transformer and bridge rectifier network；
The high-voltage pulse process chamber is used to that the high-pressure pulse electric for coming from pulsed capacitance will to be received, and is acted on placement
Pending agricultural product in the high-voltage pulse process chamber.
5. a kind of use high-pressure pulse electric according to claim 4 processes the disinfection system of agricultural product, it is characterised in that
The pulse boosting voltage changing module also includes current-limiting resistance, and the current-limiting resistance is connected with pulsed capacitance, and it is described that it is used for stabilization
The electric current of pulse boosting voltage changing module.
6. a kind of use high-pressure pulse electric according to claim 4 processes the disinfection system of agricultural product, it is characterised in that
Described IGBT electronic switches include an IGBT electronic switches and the 2nd IGBT electronic switches；The first IGBT electronic switches
It is connected in parallel with the 2nd IGBT electronic switches, and is respectively connecting to high-voltage pulse process chamber；
The first IGBT electronic switches and the 2nd IGBT electronic switches are used for the pulsed capacitance by moment of its closure
The electric energy of storage discharge in the high-voltage pulse process chamber, and form high-voltage pulse electric in the high-voltage pulse process chamber
Field action is in the pending agricultural product.
7. a kind of use high-pressure pulse electric according to claim 4 processes the disinfection system of agricultural product, it is characterised in that
The pulsed capacitance includes the first pulsed capacitance C1, the second pulsed capacitance C2, the 3rd pulsed capacitance C3,
The first pulsed capacitance C1 is used to receive and store through the power frequency high voltage after full-bridge rectification, and by IGBT electronic cuttings
The second pulsed capacitance C2 and the 3rd pulsed capacitance C3 are charged respectively pass；
The second pulsed capacitance C2 is connected to high-voltage pulse process chamber, the 3rd pulse electricity by an IGBT electronic switches
Hold C3 and high-voltage pulse process chamber, the second pulsed capacitance C2 and the 3rd pulsed capacitance are connected to by the 2nd IGBT electronic switches
C3 is filled to high-voltage pulse process chamber respectively by an IGBT electronic switches with the alternate conduction of the 2nd IGBT electronic switches
Electricity and discharge operation.
8. a kind of use high-pressure pulse electric according to claim 5 processes the disinfection system of agricultural product, it is characterised in that
The first IGBT electronic switches and the 2nd IGBT electronic switches are respectively connecting to the IGBT driver elements；The IGBT drives
Unit is used to provide the driving voltage of forward and reverse, controls an IGBT electronic switches and the 2nd IGBT electronic switches point
Shi Kaitong and closure, output two-way frequency, the adjustable bipolarity high-voltage pulse of pulse width.
9. a kind of use high-pressure pulse electric according to claim 7 processes the disinfection system of agricultural product, it is characterised in that：
The current-limiting resistance includes the first current-limiting resistance R1 and the second current-limiting resistance R2, the first current-limiting resistance R1 and the first current limliting electricity
Resistance R2 is respectively connecting to the first pulsed capacitance C1, its voltage and current being used in stable pulse boosting voltage changing module.
10. a kind of use high-pressure pulse electric according to claim 7 processes the disinfection system of agricultural product, and its feature exists
In：The high-voltage pulse process chamber and the second pulsed capacitance C2, an IGBT electronic switches constitute the first loop, and with the 3rd arteries and veins
Rush electric capacity C3, the 2nd IGBT electronic switches composition second servo loop；
When an IGBT electronic switches are turned on, the 2nd IGBT electronic switches disconnect, and the second pulsed capacitance C2 is through first time
Road direction high-voltage pulse process chamber discharges；When the 2nd IGBT electronic switches are turned on, an IGBT electronic switches disconnect, and the described 3rd
Pulsed capacitance C3 discharges through second servo loop to high-voltage pulse process chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611032575.7A CN106721880A (en) | 2016-11-16 | 2016-11-16 | The sterilizing methods and system of a kind of use high-pressure pulse electric treatment agricultural product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611032575.7A CN106721880A (en) | 2016-11-16 | 2016-11-16 | The sterilizing methods and system of a kind of use high-pressure pulse electric treatment agricultural product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106721880A true CN106721880A (en) | 2017-05-31 |
Family
ID=58971731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611032575.7A Pending CN106721880A (en) | 2016-11-16 | 2016-11-16 | The sterilizing methods and system of a kind of use high-pressure pulse electric treatment agricultural product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106721880A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107183481A (en) * | 2017-06-15 | 2017-09-22 | 成都科衡环保技术有限公司 | A kind of cold bactericidal reaction device of high-pressure pulse electric, power circuit and control method |
| CN107594292A (en) * | 2017-10-16 | 2018-01-19 | 珠海市骑健科技有限公司 | A kind of the food poison-removing method and device of intermittent high-pressure electric discharge |
| CN109527328A (en) * | 2018-12-28 | 2019-03-29 | 季华实验室 | A kind of bactericidal unit for soy sauce, system and method |
| CN109699869A (en) * | 2017-10-26 | 2019-05-03 | 湖南飞天光电科技有限公司 | A kind of food sterilization fresh-keeping system and method |
| CN111513130A (en) * | 2020-05-06 | 2020-08-11 | 湖北省农业科学院农产品加工与核农技术研究所 | Method for sterilizing and refreshing fruits and vegetables by combining modified atmosphere packaging with electrostatic field |
| CN112189813A (en) * | 2020-09-30 | 2021-01-08 | 江苏大学 | Method for pretreating pickled lotus root slices based on high-voltage pulse electric field treatment device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354018A (en) * | 2001-12-12 | 2002-06-19 | 华南理工大学 | High-voltage pulse electric field sterilization method and its equipment |
| CN102832843A (en) * | 2012-09-03 | 2012-12-19 | 许继集团有限公司 | Bipolar high-voltage pulse generation device and corresponding processing system |
| CN103475258A (en) * | 2013-09-09 | 2013-12-25 | 河海大学常州校区 | High-voltage pulse power supply with adjustable discharge parameters |
-
2016
- 2016-11-16 CN CN201611032575.7A patent/CN106721880A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354018A (en) * | 2001-12-12 | 2002-06-19 | 华南理工大学 | High-voltage pulse electric field sterilization method and its equipment |
| CN102832843A (en) * | 2012-09-03 | 2012-12-19 | 许继集团有限公司 | Bipolar high-voltage pulse generation device and corresponding processing system |
| CN103475258A (en) * | 2013-09-09 | 2013-12-25 | 河海大学常州校区 | High-voltage pulse power supply with adjustable discharge parameters |
Non-Patent Citations (1)
| Title |
|---|
| 张雯等: "高压脉冲电场技术在杨梅保鲜中的应用研究", 《食品工业科技》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107183481A (en) * | 2017-06-15 | 2017-09-22 | 成都科衡环保技术有限公司 | A kind of cold bactericidal reaction device of high-pressure pulse electric, power circuit and control method |
| CN107594292A (en) * | 2017-10-16 | 2018-01-19 | 珠海市骑健科技有限公司 | A kind of the food poison-removing method and device of intermittent high-pressure electric discharge |
| CN109699869A (en) * | 2017-10-26 | 2019-05-03 | 湖南飞天光电科技有限公司 | A kind of food sterilization fresh-keeping system and method |
| CN109527328A (en) * | 2018-12-28 | 2019-03-29 | 季华实验室 | A kind of bactericidal unit for soy sauce, system and method |
| CN111513130A (en) * | 2020-05-06 | 2020-08-11 | 湖北省农业科学院农产品加工与核农技术研究所 | Method for sterilizing and refreshing fruits and vegetables by combining modified atmosphere packaging with electrostatic field |
| CN112189813A (en) * | 2020-09-30 | 2021-01-08 | 江苏大学 | Method for pretreating pickled lotus root slices based on high-voltage pulse electric field treatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106721880A (en) | The sterilizing methods and system of a kind of use high-pressure pulse electric treatment agricultural product | |
| Arshad et al. | Electrical systems for pulsed electric field applications in the food industry: An engineering perspective | |
| Min et al. | Pulsed electric fields: processing system, microbial and enzyme inhibition, and shelf life extension of foods | |
| Buckow et al. | Pulsed electric field processing of orange juice: a review on microbial, enzymatic, nutritional, and sensory quality and stability | |
| US6214297B1 (en) | High voltage pulse generator | |
| Heinz et al. | Inactivation of Bacillus subtilis by high intensity pulsed electric fields under close to isothermal conditions | |
| US5393541A (en) | Prevention of electrode fouling in high electric field systems for killing microorganisms in food products | |
| CN101292769B (en) | Method and apparatus for synergistic sterilization and enzyme passivatation by impulse electric field and magnetic field | |
| Gaudreau et al. | A solid state pulsed power system for food processing | |
| CN101485484A (en) | Method for sterilizing concentrated apple turbid juice using high-voltage pulse electric field | |
| CN106712745B (en) | Composite high-voltage pulse electric field, electric field sterilization device and method | |
| CA2325691C (en) | A high-voltage pulse generator | |
| Uchida et al. | Efficient sterilization of bacteria by pulse electric field in micro-gap | |
| Rodrigues et al. | Ohmic heating for preservation, transformation, and extraction | |
| Sack et al. | A device for combined thermal and pulsed electric field treatment of food | |
| Kumar et al. | PEF processing of fruits, vegetables, and their products | |
| CN2744178Y (en) | High-tension pulse electric field sterilizing apparatus | |
| Jayaram | Pulsed power applied to process industry | |
| Syamsiana et al. | High voltage pulse generator design with voltage control for pulse electric field (PEF) pasteurization | |
| CN107348305B (en) | Method for killing staphylococcus aureus by cooperation of citrus naringenin and high-strength pulsed electric field | |
| Piah et al. | Pulsed electric field by Cascaded H-bridge multilevel inverter for liquid food sterilization | |
| Toepfl et al. | Industrial scale equipment, patents, and commercial applications | |
| Kempkes et al. | PEF systems for industrial food processing and related applications | |
| Moonesan et al. | IGBT based HV pulse generator for high conductivity liquid food treatment | |
| Jambari et al. | Cascaded H-bridge multilevel inverter based pulsed power supply for liquid food sterilization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |