WO2020093505A1 - 一种高压电场低温等离子体冷杀菌生产线 - Google Patents

一种高压电场低温等离子体冷杀菌生产线 Download PDF

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Publication number
WO2020093505A1
WO2020093505A1 PCT/CN2018/119978 CN2018119978W WO2020093505A1 WO 2020093505 A1 WO2020093505 A1 WO 2020093505A1 CN 2018119978 W CN2018119978 W CN 2018119978W WO 2020093505 A1 WO2020093505 A1 WO 2020093505A1
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WIPO (PCT)
Prior art keywords
voltage
electric field
voltage electric
temperature plasma
electrode
Prior art date
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PCT/CN2018/119978
Other languages
English (en)
French (fr)
Inventor
章建浩
王佳媚
万良淏
徐龙
Original Assignee
南京农业大学
苏州屹润食品科技有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Priority claimed from CN201811325923.9A external-priority patent/CN109287058A/zh
Priority claimed from CN201811325297.3A external-priority patent/CN109259036A/zh
Priority claimed from CN201811325301.6A external-priority patent/CN109221874A/zh
Application filed by 南京农业大学, 苏州屹润食品科技有限公司 filed Critical 南京农业大学
Priority to JP2020573260A priority Critical patent/JP7153281B2/ja
Publication of WO2020093505A1 publication Critical patent/WO2020093505A1/zh
Priority to US17/133,586 priority patent/US11833264B2/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/14—Plasma, i.e. ionised gases
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs

Definitions

  • the invention relates to the technical field of food sterilization, in particular to a high-voltage electric field low-temperature plasma cold sterilization production line.
  • high-voltage electric field low-temperature plasma cold sterilization technology is an important breakthrough in food cold sterilization and fresh-keeping packaging technology; this technology can be perfectly combined with MAP modified atmosphere fresh-keeping packaging technology, and low-temperature plasma sterilizes packaging products
  • the treatment will not produce secondary pollution.
  • the plasma that produces sterilization comes from the gas inside the package, does not produce chemical residues, and has high safety; although the voltage used is very high, the current is small, the sterilization process is short, and no heat is generated. , No temperature rise, low energy consumption, easy operation, etc.
  • the low-temperature plasma cold sterilization technology as a new sterilization method, is not suitable for cold sterilization of heat-sensitive foods (such as fresh livestock, poultry, fish and meat products and conditioning products, fresh fruits and vegetables and fresh cut vegetables, etc.).
  • heat-sensitive foods such as fresh livestock, poultry, fish and meat products and conditioning products, fresh fruits and vegetables and fresh cut vegetables, etc.
  • the high-voltage electric field low-temperature plasma cold sterilization technology has some patents.
  • the invention patent ZL201410347682.3 discloses "a fresh meat high-voltage electric field plasma collaborative nano-photocatalytic sterilization preservation method”
  • the invention patent ZL201510182548.7 discloses A plasma synergistic nanomaterial photocatalytic cold sterilization method in packaging "
  • the invention patent application number 201510765160.X discloses a cold sterilization method based on gold nanoparticles and high voltage electric field plasma, the application number is 201710286620.
  • X 'S invention patent discloses "the construction of a high-voltage electric field low-temperature plasma system excitation device"; but the research and development of the high-voltage electric field low-temperature plasma cold sterilization core technical equipment and production line has just started.
  • the purpose of the present invention is to provide a high-voltage electric field low-temperature plasma cold sterilization automated production line equipment for the above technical problems, using 220V power supply through high-voltage transformers and other system components to make the high-voltage electric field low-temperature plasma cold sterilization core device high-voltage electrode and ground electrode A high-voltage electric field of 60-90KV is generated, and the processed food packaging box (bag) is placed between the upper electrode and the lower electrode.
  • a high-voltage electric field is generated between the upper electrode and the lower electrode to stimulate the packaging
  • the internal medium gas generates plasma to achieve a safe and efficient sterilization effect; at the same time, it solves the bottleneck of the key technical equipment for the safe quality control of the large-scale development and production of fresh conditioned food and heat-sensitive food.
  • a technical solution adopted by the present invention is to provide a high-voltage electric field low-temperature plasma cold sterilization production line, including a chassis, a rack, a conveyor belt mechanism, a high-voltage electric field low-temperature plasma cold sterilization core device, a high-voltage transformer, High-voltage control box, distribution box, high-voltage electric field shield door and control device;
  • the high-voltage electric field low-temperature plasma cold sterilization core device is set in the cabinet above the rack at a certain distance along the running direction of the conveyor belt mechanism; 2-5 groups;
  • the high-voltage electric field low-temperature plasma cold sterilization core device is composed of a plurality of sets of high-voltage electrode assemblies arranged in a row at equal intervals; the high-voltage transformer, high-voltage control box and distribution box are all located at the lower part of the rack and connected to the high-voltage electrode assembly;
  • the conveyor belt mechanism is provided in the middle of the rack, and the high-voltage electric field shield door is provided at
  • the electric field low-temperature plasma cold sterilization core device is composed of 2-6 sets of high-voltage electrode assemblies arranged in a row, the high-voltage electrode assembly includes an electrode assembly and a transmission mechanism, the electrode assembly is connected to the transmission mechanism, and the electrode assembly includes a vertical arrangement One or more sets of upper and lower electrodes are set, and the transmission mechanism controls the rise or fall to regulate the distance between the upper and lower electrodes.
  • the upper electrode moves up and down to press the package, and the lower electrode is placed under the conveyor belt mechanism and Fixed on the rack.
  • the center distance between adjacent high-voltage electric field low-temperature plasma cold sterilization core devices is 300-500 mm.
  • the transmission mechanism includes an active linear slide table, a driven linear slide table, a conveyor belt, a cross beam, and a servo motor.
  • the active linear slide table and the driven linear slide table are vertically arranged at At the opposite side, the inside of the active linear slide and the driven linear slide are correspondingly provided with synchronous belt wheels, the conveyor belt is movably wound between the two synchronous pulleys, and the crossbeam is movably set between the active linear slide and the slave In the middle part between the movable linear slide table, the servo motor is arranged at the lower end of the active linear slide table, and the cross beam is driven by the servo motor to move up and down with the active linear slide table and the driven linear slide table.
  • the upper electrode includes a high voltage electrode, a fixed frame, an upper dielectric barrier insulating plate, a mounting plate, and a high voltage line post, the upper dielectric barrier insulating plate is embedded in the fixed frame, the An upper groove is opened downward at the top of the middle position of the upper dielectric barrier insulating plate.
  • the high voltage electrode is disposed in the upper groove of the upper dielectric barrier insulating plate.
  • the mounting plate is disposed at the upper end of the fixed frame and the upper dielectric barrier insulating plate.
  • the high-voltage line post is vertically arranged in the middle of the mounting plate, the lower end of the high-voltage line post extends downward and is connected to the high-voltage electrode, and the upper end of the high-voltage line post extends upward to the upper end of the beam, wherein the upper dielectric blocks the material of the insulating plate It is: polymethyl methacrylate, phenolic resin or epoxy resin with a dielectric constant of 3.5-5.0, and the thickness of the dielectric barrier insulating plate in the groove part is 1.8-3.0mm.
  • the safety shielding distance between the two ends of the upper electrode and the transmission mechanism is not less than 150-180mm.
  • the lower electrode includes a ground electrode, a mounting bottom plate, and a lower dielectric barrier insulating plate.
  • the top of the middle position of the mounting bottom plate is provided with a groove downward, and the bottom of the lower groove
  • a grounding stud is arranged downward, and the ground electrode is arranged in a lower groove of the mounting base plate and is connected to the grounding stud.
  • the lower dielectric barrier insulating plate is provided at the upper end of the ground electrode, wherein the lower dielectric barrier insulating plate
  • the material is: polymethyl methacrylate, phenolic resin or epoxy resin with a dielectric constant of 3.5-5.0, and a thickness of 3.0-4.5mm.
  • the output interface of the high-voltage transformer adopts a high-voltage shielded dedicated line and 2-5 sets of high-voltage electric field low-temperature plasma cold sterilization core devices at equal intervals of 2-5 groups.
  • the electrodes are connected in parallel, and a 220V power supply is used to generate a 60-90KV high-voltage electric field between the upper electrode and the lower electrode of the high-voltage electric field low-temperature plasma cold sterilization core device.
  • the case adopts a metal shell
  • an observation window is provided on the front of the production line of the case
  • a metal mesh shielding layer is installed inside the glass of the observation window.
  • control box is also provided with an input and output port connected to a bit machine on the production line.
  • the high-voltage electric field low-temperature plasma cold sterilization production line further includes a fan, an alarm light and a ground wire connection, the fan is provided on the chassis above the rack, and the alarm light is provided on the chassis and It is connected to the PLC controller.
  • the PLC controller controls the alarm lamp to issue a warning signal.
  • the beneficial effect of the present invention is that the high-voltage electric field low-temperature plasma cold sterilization production line of the present invention uses a 220V power supply through high-voltage transformers and other system components to generate 60 between the high-voltage electrode and the ground electrode of the high-voltage electric field low-temperature plasma cold sterilization core device -90KV high-voltage electric field, place the processed food packaging box (bag) between the upper electrode and the lower electrode, through the input of the high-voltage power supply, the high-voltage electric field is generated between the upper electrode and the lower electrode, and the medium gas in the package is excited Plasma to achieve safe and efficient sterilization effect; at the same time solve the bottleneck of key technical equipment for the safety and quality control of the large-scale development and production of fresh conditioned food and heat-sensitive food.
  • FIG. 1 is a schematic diagram of the internal structure of a preferred embodiment of a high-voltage electric field low-temperature plasma cold sterilization production line of the present invention
  • Figure 2 is a schematic diagram of the outline structure of Figure 1;
  • FIG. 3 is a schematic structural diagram of the high-voltage electrode assembly in FIG. 1;
  • FIG. 4 is a schematic diagram of the assembly structure of the upper electrode in FIG. 3;
  • FIG. 5 is a schematic diagram of the assembly structure of the lower electrode in FIG. 3;
  • FIG. 6 is a structural schematic diagram of the conveyor belt mechanism in FIG. 1;
  • Chassis 2. Rack, 3. Conveyor mechanism, 4. High-voltage electric field low-temperature plasma cold sterilization core device, 5. High-voltage transformer, 6. High-voltage control box, 7. Distribution box, 8. High-voltage electric field screen door, 9.
  • Control device 10, observation window, 11, fan, 12, alarm light, 31, drive motor, 32, conveyor belt, 33, synchronous belt transmission mechanism, 34, driving roller, 35 , Driven roller, 36, tension roller, 41, high voltage electrode assembly, 42, electrode assembly, 43, transmission mechanism, 91, control box, 92, touch control screen, 93, input and output ports, 421, upper electrode, 422 , Lower electrode, 431, active linear slide, 432, driven linear slide, 433, conveyor belt, 434, beam, 435, servo motor, 436, timing pulley, 4211, high voltage electrode, 4212, fixed frame, 4213, Upper dielectric barrier insulating plate, 4214, mounting plate, 4215, high-voltage line connecting post, 4216, upper groove, 4217, guide post, 4221, ground electrode, 4222, mounting base plate, 4223, lower dielectric barrier insulating plate, 4224, concave Slot, 4225, ground stud.
  • an embodiment of the present invention includes:
  • a high-voltage electric field low-temperature plasma cold sterilization production line includes a cabinet 1, a frame 2, a conveyor belt mechanism 3, a high-voltage electric field low-temperature plasma cold sterilization core device 4, a high-voltage transformer 5, a high-voltage control box 6, a distribution box 7, a high-voltage electric field Screen door 8 and control device 9.
  • the high-voltage electric field low-temperature plasma cold sterilization core device 4 is arranged in a case 1 above the rack 2 along the running direction of the conveyor belt mechanism 3 at a certain distance and 2-5 groups are set; A plurality of sets of high-voltage electrode assemblies 41 are arranged in a row at equal intervals; the high-voltage transformer 5, the high-voltage control box 6 and the distribution box 7 are all located at the lower part of the frame 1 and are connected to the high-voltage electrode assembly 41; the conveyor belt mechanism 3 is provided In the middle of the rack 2, a high-voltage electric field shield door 8 is provided at the inlet and outlet of the sterilized package of the rack 2; the control device 9 is connected to the outside of the cabinet 1 and includes a control box 91 and a front end of the control box 91 Touch control screen 92; the control box 9 is provided with a PLC controller (not shown), the PLC controller is connected to the touch control screen 92, and controls the conveyor belt mechanism 3, high voltage electric field low temperature plasma cold sterilization core
  • the high-voltage electric field low-temperature plasma cold sterilization core device 4 is arranged in the chassis 1 above the rack 2 along the running direction of the conveyor belt mechanism 3 at a certain distance and 2-5 groups are arranged; adjacent to the high-voltage electric field low-temperature plasma cold
  • the center distance between the sterilization core devices 4 is 300-500 mm.
  • each group of the high-voltage electric field low-temperature plasma cold sterilization core device 4 is composed of 2-6 groups of high-voltage electrode assemblies arranged in a row.
  • the high-voltage electrode assembly 41 is composed of an electrode assembly 42 and a transmission mechanism 43.
  • the electrode assembly 42 is connected to the transmission mechanism 43, wherein the electrode assembly 42 includes a group of electrodes arranged side by side. Or multiple sets of upper electrode 421 and lower electrode 422, the transmission mechanism 43 controls the rise or fall to adjust the distance between the upper electrode 421 and the lower electrode 422, the upper electrode 421 moves up and down to press the package, the lower electrode 422 is set on the conveyor belt
  • the mechanism 43 is below and fixed on the frame 2.
  • the transmission mechanism 43 includes an active linear slide 431, a driven linear slide 432, a conveyor belt 433, a cross beam 434, and a servo motor 435.
  • the active linear slide 431 and the driven linear slide 432 are vertically disposed at In the opposite side position, the inside of the driving linear slide 431 and the driven linear slide 432 are correspondingly provided with timing belt wheels 436, the conveyor belt 433 is movably wound between the two timing belt wheels 436, and the beam 434 is movably arranged at In the middle between the active linear slide 431 and the driven linear slide 432, the servo motor 435 is disposed at the lower end of the active linear slide 431, and the beam 434 is driven by the servo motor 435 to follow the active linear slide 431 and the driven linear slide
  • the table 432 moves up and down.
  • one high-voltage electrode assembly 41 includes three sets of upper electrode 421 and lower electrode 422, so the distance between the active linear slide 431 and the driven linear slide 432 of the transmission mechanism 43 will be relatively large, and the conveyor belt 433 will also longer. (If the span is too large, the belt 433 will cause the beam 434 to tilt, and you can use a dual-servo motor sliding table to achieve synchronization through the PLC controller).
  • the upper electrode 421 includes a high-voltage electrode 4121, a fixed frame 4212, an upper dielectric barrier insulating plate 4213, a mounting plate 4214, and a high-voltage line post 4215.
  • the upper dielectric barrier insulating plate 4213 is embedded in the fixed frame 4212 Inside, an upper groove 4216 is opened downward at the top of the middle position of the upper dielectric barrier insulating plate 4213, the high voltage electrode 4211 is disposed in the upper groove 4216 of the upper dielectric barrier insulating plate 4213, and the mounting plate 4214 is disposed in the fixed frame 4212 and the upper end of the upper dielectric barrier insulating plate 4213, the high-voltage line post 4215 is vertically arranged at the middle position of the mounting plate 4214, the lower end of the high-voltage line post 4215 extends downward to connect with the high-voltage electrode 4211, the high-voltage line post 4215 The upper end extends upward to the upper end of the beam 434, and the beam 434 drives the high
  • the material of the upper dielectric barrier insulating plate 4213 is: polymethyl methacrylate, phenolic resin or epoxy resin with a dielectric constant of 3.5-5.0, and the thickness of the dielectric barrier insulating plate of the groove portion is 1.8-3.0 mm.
  • the high-voltage electrode 4211, the fixed frame 4212, the upper dielectric barrier insulating plate 4213, and the mounting plate 4214 are all sealed.
  • the upper dielectric barrier insulating plate 4213 and the mounting plate 4214 are also connected by a guide post 4217.
  • a spring (not shown) is sleeved on the guide post 4217.
  • the structure of the spring and the guide post 4217 can be in contact with the high voltage electrode 4211 There is a small amount of compression when the food is processed, so that the high-voltage electrode 4211 and the food are compacted.
  • the discharge method of the high-voltage electrode 4211 is dielectric barrier discharge.
  • the lower electrode 422 includes a ground electrode 4221, a mounting bottom plate 4222, and a lower dielectric barrier insulating plate 4223.
  • a top groove 4224 is formed at the top of the middle position of the mounting bottom plate 4222, and the lower groove The bottom surface of 4224 is provided with a ground stud 4225.
  • the ground electrode 4221 is disposed in the lower groove 4224 of the mounting base plate 4222 and connected to the ground stud 4225.
  • the lower dielectric barrier insulating plate 4223 is disposed on the ground electrode 4221
  • the upper end of the lower dielectric barrier insulating plate 4223 is made of polymethyl methacrylate, phenolic resin or epoxy resin with a dielectric constant of 3.5-5.0 and a thickness of 3.0-4.5mm.
  • the ground electrode 4221, the mounting base 4222 and the lower dielectric barrier insulating plate 4223 are all sealed.
  • the components of the upper electrode 421 and the lower electrode 422 are sealed, which effectively avoids the creeping phenomenon of the upper electrode 421 and the lower electrode 422 under high voltage.
  • the high-voltage electrode 4121 and the ground electrode 4221 are made of aluminum material, which is more lightweight and durable.
  • the safety shielding distance between the two ends of the upper electrode 421 and the transmission mechanism 43 is not less than 150-180 mm. Since the active linear slide 431 and the driven linear slide 432 are made of metal materials, the upper electrode 421 and the lower electrode 422 will be affected when they are too close to the active linear slide 431 and the driven linear slide 432 during operation. Therefore, current is generated and danger is generated.
  • the distance limitation in this embodiment is the optimal distance range obtained according to a large number of experiments. The active linear slide 431 and the driven linear slide 432 provided at this distance will affect the upper electrode 421 It affects the work of the lower electrode 422 and keeps the work going smoothly.
  • betel nut weighs about 10g in a packaging bag, and uses different dielectric constant materials as dielectric barrier insulating plates to carry out high-temperature electric field low temperature plasma cold sterilization of bulk betel nut deal with.
  • the sterilization treatment conditions are: low temperature plasma cold sterilization treatment 30s, 90s interval, 3 treatments; voltage intensity: 16.5kv / cm, current: 0.9mA; operating room temperature: 25 ° C, humidity: 55%.
  • the output interface of the high-voltage transformer 5 adopts a high-voltage shielded special line and 2-5 sets of high-voltage electric field low-temperature plasma cold sterilization core devices arranged at equal intervals. All upper electrodes 421 and lower electrodes 422 of all high-voltage electrode assemblies 41 are connected in parallel, and a 220V power supply A high-voltage electric field of 60-90 KV is generated between the upper electrode 421 and the lower electrode 422 of the high-voltage electric field low-temperature plasma cold sterilization core device 4.
  • the upper electrode 421 and the lower electrode 422 of the high-voltage electric field low-temperature plasma cold sterilization core device 4 are respectively connected to two high-voltage transformers 5, both of which are high-voltage electrodes.
  • the upper electrode 421 is installed on the transmission assembly 43, and can move up and down with the slide table group; the lower electrode 422 is fixed below the conveyor belt.
  • a high voltage electric field is formed in the space area above the conveyor belt to the surface of the upper electrode 421, which stimulates the ionization of the air inside the package and the transfer of electrons to generate plasma, which acts on the surface of the food and plays a sterilizing role.
  • the production line may be provided with one or more sets of high-voltage electrode assemblies 41 in parallel, in this embodiment, three sets of high-voltage electrode assemblies 41.
  • the conveyor belt mechanism 3 is composed of a drive motor 31, a conveyor belt 32, a synchronous pulley transmission mechanism 33, a driving roller 34, a driven roller 35, and a tension roller 36, and is used to carry transported products.
  • the conveying driving roller 31 and the tensioning roller 36 are respectively disposed at the front and rear ends of the frame 2, the driven roller 35 is respectively disposed below the driving roller 34 and the tensioning roller 36, and the conveying belt 32 is wound around Mounted on the outside of the driving roller 34, the driven roller 35 and the tensioning roller 36 to form an inverted trapezoidal structure, the driving motor 31 is connected to the driving roller 34 through a synchronous pulley transmission mechanism 33.
  • the conveyor belt 32 in the conveyor mechanism 3 is made of nylon or rubber belt without any metal material.
  • the drive motor 31 uses a servo motor, which can precisely control the advancement and stop of the conveyor belt.
  • the conveyor belt 32 uses a silicone belt to ensure the strength when transporting the workpiece; during the discharge process, it acts as a dielectric barrier for the lower electrode 422.
  • the number and position of the driven roller 35 and the tension roller 36 depend on the length required by the production line.
  • the two driven rollers 35 are installed at the lower portion, and the tension roller 36 is installed in the opposite direction of the driving roller 34. According to different production lines and product requirements, corresponding connecting devices (not shown) and metronome (not shown) need to be installed at the head and tail of the conveyor belt mechanism 3 to ensure the correct placement of the product on the conveyor belt 32.
  • the chassis 1 adopts a metal shell, and an observation window 10 is provided on the front of the production line of the chassis 1.
  • a glass mesh shield layer (not shown) is installed inside the glass of the observation window 10 to achieve The effect of shielding.
  • the transmission belt 32 has a liftable high-voltage electric field shielding door 8 at the position of entering and exiting the cabinet 1. During discharge, the high-voltage electric field shielding door 8 is lowered to isolate the high-voltage discharge space.
  • the high-voltage electric field shield door 8 is made of aluminum alloy plate.
  • the control device 9 includes a control box 91 and a touch control screen 92, which can be divided into independent operation and upper computer operation in function.
  • the control box 91 is provided with a PLC controller (not shown), connected to all detection signals of the production line equipment, and outputting all control signals of the production line equipment.
  • the PLC controller is connected to the touch control screen 92 and also reserves the input and output ports 93 of the position machine on the production line. Therefore, the operation of the equipment of this production line can be realized either by the touch control screen 92, or by the upper computer. To achieve the purpose of automated production.
  • the high-voltage electric field low-temperature plasma cold sterilization production line further includes a fan 11, an alarm light 12 and a ground wire connection (not shown in the figure), the fan 11 is provided on the chassis 1 above the rack 2, the alarm light 12 is set on the chassis 1 and is connected with the PLC controller. When a failure occurs, the PLC controller controls the alarm light 12 to issue a warning signal to prevent danger.
  • High-voltage breakdown protection The host power supply of the differential power supply has a current detection protection function. Once the current is too large, it will be powered off to prevent breakdown caused by high-voltage equipment;
  • High-voltage insulation protection All high-voltage lines, terminals, electrode plates and other high-voltage devices are isolated with insulating materials; at the same time, a safe insulation distance of 150-180mm from metal materials is ensured;
  • High-voltage electric field induction protection the equipment is shielded with a metal shell, and the metal window shielding layer is installed inside the observation window.
  • the entrance and exit of the package is provided with a liftable shielding door. The shielding door is lowered during discharge to isolate the high-voltage discharge space;
  • the high-voltage electric field low-temperature plasma cold sterilization production line of the present invention carries out continuous low-temperature plasma gap sterilization treatment on packaged products.
  • the sterilization time is short, the effect is good and the efficiency is high, and the sterilization procedure Accurate and controllable, simple operation, it can adapt to the automatic production requirements of food large-scale cold sterilization and fresh-keeping packaging.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Plasma & Fusion (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Veterinary Medicine (AREA)
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  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

一种高压电场低温等离子体冷杀菌生产线，包括机箱(1)、机架(2)、传送带机构(3)、高压电场低温等离子体冷杀菌核心装置(4)、高压变压器(5)、高压控制箱(6)、配电箱(7)、高压电场屏蔽门(8)以及控制装置(9)。高压电场低温等离子体冷杀菌核心装置(4)设置在机架(2)上方的机箱(1)内顺传送带机构(3)运行方向间隔一定距离设置2-5组，每组高压电场低温等离子体冷杀菌核心装置(4)由2-6组高压电极组件(41)并列一排组成，高压电极组件(41)由传动机构(43)控制上升或下降来调控电极组件(42)的上电极(421)和下电极(422)之间的距离。高压电场低温等离子体冷杀菌生产线对包装产品进行低温等离子体间隙多次连续杀菌处理，杀菌时间短、效果好效率高，杀菌程序精准可控、操作简单，可适应食品规模化冷杀菌保鲜包装的自动化生产要求。

Description

一种高压电场低温等离子体冷杀菌生产线 技术领域
本发明涉及食品杀菌的技术领域，尤其涉及一种高压电场低温等离子体冷杀菌生产线。
背景技术
与目前广泛采用的食品杀菌技术比较，高压电场低温等离子体冷杀菌技术是食品冷杀菌保鲜包装技术的重要突破；此技术可与MAP气调保鲜包装技术完美结合，低温等离子体对包装产品进行杀菌处理不会产生二次污染，产生杀菌作用的等离子体来源于包装内部气体，不会产生化学残留，安全性高；尽管使用的电压非常高，但电流微小、杀菌处理过程很短不会产生热量、没有温升，且能耗很低、操作简便等。因此，低温等离子体冷杀菌技术作为一种新的杀菌方式，别适用于对热敏感食品(如生鲜畜禽鱼类肉制品及调理产品、新鲜果蔬及鲜切菜等)冷杀菌。这些特点对生鲜调理食品及其热敏性食品的大规模开发安全品质控制，具有关键的技术突破和巨大的开发空间。
目前，高压电场低温等离子体冷杀菌技术已有一些专利，如发明专利ZL201410347682.3公开了“一种生鲜肉高压电场等离子体协同纳米光催化杀菌保鲜方法”，发明专利ZL201510182548.7公开了“一种等离子体协同纳米材料光催化的包装内冷杀菌方法”，申请号为201510765160.X的发明专利公开了一种基于金纳米颗粒协同高压电场等离子体的冷杀菌方法，申请号为201710286620.X的发明专利公开了“一种高压电场低温等离子体系统激发装置的构建”；但高压电场低温等离子体冷杀菌核心技术装备和生产线的研究开发刚刚起步。因此，研究开发一种能适应多参数调控的高压电场低温等离子体冷杀 菌高效安全自动化生产线设备，是农产品深加工及食品冷杀菌技术的重要突破，将解决生鲜调理食品现代物流保鲜包装安全品质控制的技术瓶颈。
发明内容
本发明的目的是针对上述技术问题提供一种高压电场低温等离子体冷杀菌自动化生产线设备，使用220V电源通过高压变压器等系统元器件，使高压电场低温等离子体冷杀菌核心装置的高压电极与地电极之间产生60-90KV的高压电场，将被处理的食品包装盒(袋)放置在上电极和下电极之间，通过高压电源的输入，使上电极和下电极之间产生高压电场，激发包装内部介质气体产生等离子体而达到安全高效杀菌效果；同时解决生鲜调理食品及其热敏性食品的大规模开发生产冷杀菌保鲜包装安全品质控制的关键技术装备瓶颈。
为解决上述技术问题，本发明采用的一个技术方案是：提供了一种高压电场低温等离子体冷杀菌生产线，包括机箱、机架、传送带机构、高压电场低温等离子体冷杀菌核心装置、高压变压器、高压控制箱、配电箱、高压电场屏蔽门以及控制装置；所述高压电场低温等离子体冷杀菌核心装置设置在机架上方的机箱内顺传送带机构运行方向间隔一定距离设置2-5组；所述高压电场低温等离子体冷杀菌核心装置由多组高压电极组件等距并列一排组成；所述高压变压器、高压控制箱和配电箱均位于机架的下部并与高压电极组件相连接；所述传送带机构设置在机架中部，高压电场屏蔽门设置在机架被杀菌包装件的进口和出口处；所述控制装置连接设置在机箱的外部，包括控制箱和设置在控制箱前端的触摸控制屏；所述控制箱内设置有PLC控制器，PLC控制器与触摸控制屏相连接，并控制传送带机构、高压电场低温等离子体冷杀菌核心装置、高压变压器、高压控制箱、配电箱、高压电场屏蔽门和触摸控制屏的程序动作，其中，每组所述高压电场低温等离子体冷杀菌核心装置由2-6组高压电极组件并列一 排组成，所述高压电极组件包括电极组件和传动机构，所述电极组件与传动机构相连接，所述电极组件包括上下并列设置的一组或多组的上电极和下电极，由传动机构控制上升或下降来调控上电极和下电极之间的距离，上电极上下移动紧压包装件，下电极设置在传送带机构下方并固定在机架上。
在本发明一个较佳实施例中，相邻所述高压电场低温等离子体冷杀菌核心装置之间间隔的中心距离为300-500mm。
在本发明一个较佳实施例中，所述传动机构包括主动线性滑台、从动线性滑台、传送带、横梁和伺服电机，所述主动线性滑台和从动线性滑台分别竖向设置在相对侧位置，主动线性滑台和从动线性滑台内侧均对应设置有同步带轮，所述传送带活动绕装在两个同步带轮之间，所述横梁活动设置在主动线性滑台和从动线性滑台之间的中部，所述伺服电机设置在主动线性滑台的下端，由伺服电机驱动横梁随主动线性滑台和从动线性滑台上下移动。
在本发明一个较佳实施例中，所述上电极包括高压电极、固定框架、上介质阻挡绝缘板、安装板和高压线接柱，所述上介质阻挡绝缘板内嵌在固定框架内，所述上介质阻挡绝缘板中间位置的顶部向下开设一上凹槽，高压电极设置于上介质阻挡绝缘板的上凹槽内，所述安装板设置在固定框架和上介质阻挡绝缘板的上端，所述高压线接柱竖向设置在安装板的中间位置，所述高压线接柱的下端向下延伸与高压电极连接，高压线接柱的上端向上延伸至横梁的上端，其中，上介质阻挡绝缘板的材料为：介电常数为3.5-5.0的聚甲基丙烯酸甲酯、酚醛树脂或环氧树脂，凹槽部分的介质阻挡绝缘板厚度1.8-3.0mm。
在本发明一个较佳实施例中，所述上电极的两端与传动机构之间的安全屏蔽距离不小于150-180mm。
在本发明一个较佳实施例中，所述下电极包括地电极、安装底板和下介质 阻挡绝缘板，所述安装底板中间位置的顶部向下开设有一下凹槽，所述下凹槽的底面向下设置有接地螺柱，所述地电极设置于安装底板的下凹槽内并与接地螺柱相连接，所述下介质阻挡绝缘板设置在地电极的上端，其中，下介质阻挡绝缘板材料为：介电常数为3.5-5.0的聚甲基丙烯酸甲酯、酚醛树脂或环氧树脂，厚度为3.0-4.5mm。
在本发明一个较佳实施例中，所述高压变压器的输出接口采用高压屏蔽专用线与间隔等距离设置的2-5组高压电场低温等离子体冷杀菌核心装置所有高压电极组件的上电极和下电极并联连接，采用220V电源使高压电场低温等离子体冷杀菌核心装置的上电极与下电极之间产生60-90KV的高压电场。
在本发明一个较佳实施例中，所述机箱采用金属外壳，所述机箱的生产线正面上设置有观察窗，所述观察窗的玻璃内部安装金属丝网屏蔽层。
在本发明一个较佳实施例中，所述控制箱还设置有与生产线上位机连接的输入输出端口。
在本发明一个较佳实施例中，所述高压电场低温等离子体冷杀菌生产线还包括风机、报警灯和接地线连接，所述风机设置在机架上方的机箱上，报警灯设置在机箱上并与PLC控制器相连接，当出现故障时PLC控制器控制报警灯发出警示信号。
本发明的有益效果是：本发明的高压电场低温等离子体冷杀菌生产线，使用220V电源通过高压变压器等系统元器件，使高压电场低温等离子体冷杀菌核心装置的高压电极与地电极之间产生60-90KV的高压电场，将被处理的食品包装盒(袋)放置在上电极和下电极之间，通过高压电源的输入，使上电极和下电极之间产生高压电场，激发包装内部介质气体产生等离子体而达到安全高效杀菌效果；同时解决生鲜调理食品及其热敏性食品的大规模开发生产冷杀菌保 鲜包装安全品质控制的关键技术装备瓶颈。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1是本发明高压电场低温等离子体冷杀菌生产线的一较佳实施例的内部结构示意图；
图2是图1的外形结构示意图；
图3是图1中高压电极组件的结构示意图；
图4是图3中上电极的组装结构示意图；
图5是图3中下电极的组装结构示意图；
图6是图1中传送带机构结构示意图；
附图中的标记为：1、机箱，2、机架，3、传送带机构，4、高压电场低温等离子体冷杀菌核心装置，5、高压变压器，6、高压控制箱，7、配电箱，8、高压电场屏蔽门，9、控制装置，10、观察窗，11、风机，12、报警灯，31、驱动电机，32、传送皮带，33、同步带轮传动机构，34、主动辊，35、从动辊，36、涨紧辊，41、高压电极组件，42、电极组件，43、传动机构，91、控制箱，92、触摸控制屏，93、输入输出端口，421、上电极，422、下电极，431、主动线性滑台，432、从动线性滑台，433、传送带，434、横梁，435、伺服电机，436、同步带轮，4211、高压电极，4212、固定框架，4213、上介质阻挡绝缘板，4214、安装板，4215、高压线接柱，4216、上凹槽，4217、导柱，4221、地电 极，4222、安装底板，4223、下介质阻挡绝缘板，4224、下凹槽，4225、接地螺柱。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
如图1和图2所示，本发明实施例包括：
一种高压电场低温等离子体冷杀菌生产线，包括机箱1、机架2、传送带机构3、高压电场低温等离子体冷杀菌核心装置4、高压变压器5、高压控制箱6、配电箱7、高压电场屏蔽门8以及控制装置9。所述高压电场低温等离子体冷杀菌核心装置4设置在机架2上方的机箱1内顺传送带机构3运行方向间隔一定距离设置2-5组；所述高压电场低温等离子体冷杀菌核心装置4由多组高压电极组件41等距并列一排组成；所述高压变压器5、高压控制箱6和配电箱7均位于机架1的下部并与高压电极组件41相连接；所述传送带机构3设置在机架2中部，高压电场屏蔽门8设置在机架2被杀菌包装件的进口和出口处；所述控制装置9连接设置在机箱1的外部，包括控制箱91和设置在控制箱91前端的触摸控制屏92；所述控制箱9内设置有PLC控制器(图未视)，所述PLC控制器与触摸控制屏92相连接，并控制传送带机构3、高压电场低温等离子体冷杀菌核心装置4、高压变压器5、高压控制箱6、配电箱7、高压电场屏蔽门8和触摸控制屏92的程序动作。
上述中，所述高压电场低温等离子体冷杀菌核心装置4设置在机架2上方的机箱1内顺传送带机构3运行方向间隔一定距离设置2-5组；相邻所述高压电 场低温等离子体冷杀菌核心装置4之间间隔的中心距离为300-500mm。
本实施例中，每组所述高压电场低温等离子体冷杀菌核心装置4由2-6组高压电极组件并列一排组成。
如图3所示，所述高压电极组件41由电极组件42和传动机构43两部分组成，所述电极组件42与传动机构43相连接，其中，所述电极组件42包括上下并列设置的一组或多组的上电极421和下电极422，由传动机构43控制上升或下降来调控上电极421和下电极422之间的距离，上电极421上下移动紧压包装件，下电极422设置在传送带机构43下方并固定在机架2上。
其中，所述传动机构43包括主动线性滑台431、从动线性滑台432、传送带433、横梁434和伺服电机435，所述主动线性滑台431和从动线性滑台432分别竖向设置在相对侧位置，主动线性滑台431和从动线性滑台432内侧均对应设置有同步带轮436，所述传送带433活动绕装在两个同步带轮436之间，所述横梁434活动设置在主动线性滑台431和从动线性滑台432之间的中部，所述伺服电机435设置在主动线性滑台431的下端，由伺服电机435驱动横梁434随主动线性滑台431和从动线性滑台432上下移动。
本实施例中，一个高压电极组件41含3组上电极421和下电极422，所以传动机构43的主动线性滑台431和从动线性滑台432之间的距离会比较大，传送带433也会比较长。(如跨距过大，传送带433传动会产生横梁434倾斜现象，可改用双伺服电机电动滑台，通过PLC控制器控制实现同步)。
如图4所示，所述上电极421包括高压电极4211、固定框架4212、上介质阻挡绝缘板4213、安装板4214和高压线接柱4215，所述上介质阻挡绝缘板4213内嵌在固定框架4212内，所述上介质阻挡绝缘板4213中间位置的顶部向下开设一上凹槽4216，高压电极4211设置于上介质阻挡绝缘板4213的上凹槽4216 内，所述安装板4214设置在固定框架4212和上介质阻挡绝缘板4213的上端，所述高压线接柱4215竖向设置在安装板4214的中间位置，所述高压线接柱4215的下端向下延伸与高压电极4211连接，高压线接柱4215的上端向上延伸至横梁434的上端，由横梁434带动高压线接柱4215从而带动整个上电极421的上升或下降。其中，上介质阻挡绝缘板4213的材料为：介电常数为3.5-5.0的聚甲基丙烯酸甲酯、酚醛树脂或环氧树脂，凹槽部分的介质阻挡绝缘板厚度1.8-3.0mm。本实施例中，所述高压电极4211、固定框架4212、上介质阻挡绝缘板4213和安装板4214之间均为密封设置。
进一步的，上介质阻挡绝缘板4213和安装板4214之间还通过导柱4217连接，导柱4217上套接有弹簧(图未视)，弹簧和导柱4217的结构可以在高压电极4211在接触到被处理食品时有小量的压缩，使得高压电极4211与食品之间压实。其中，所述高压电极4211的放电方式为介质阻挡放电。
如图5所示，所述下电极422包括地电极4221、安装底板4222和下介质阻挡绝缘板4223，所述安装底板4222中间位置的顶部向下开设有一下凹槽4224，所述下凹槽4224的底面向下设置有接地螺柱4225，所述地电极4221设置于安装底板4222的下凹槽4224内并与接地螺柱4225相连接，所述下介质阻挡绝缘板4223设置在地电极4221的上端，其中，下介质阻挡绝缘板4223材料为：介电常数为3.5-5.0的聚甲基丙烯酸甲酯、酚醛树脂或环氧树脂，厚度为3.0-4.5mm。本实施例中，所述地电极4221、安装底板4222和下介质阻挡绝缘板4223之间均为密封设置。
上电极421和下电极422的各个组件均为密封设置，有效的避免了在高压电之下上电极421和下电极422的爬电现象。其中，高压电极4211、地电极4221均采用铝材料制成，材质更为轻便耐用。
本实施例中，所述上电极421的两端与传动机构43之间的安全屏蔽距离不小于150-180mm。由于主动线性滑台431、从动线性滑台432为金属材料制成，上电极421和下电极422在工作中和主动线性滑台431、从动线性滑台432距离过近则会受到影响，从而产生电流，产生危险，本实施例的距离限制则是根据大量实验得出的最优的距离范围，在此距离下设置的主动线性滑台431、从动线性滑台432会对上电极421和下电极422的工作产生影响，保持工作的顺利进行。
实施例：介质阻挡绝缘板不同材料介电常数对散装即食槟榔的杀菌效果
散装即食槟榔杀菌试验方法：
散装槟榔经过微生物接种培养后(菌落总数400000)，槟榔称取10g左右于包装袋中进行包装，分别用不同介电常数材料作为介质阻挡绝缘板，对散装即食槟榔进行高压电场低温等离子体冷杀菌处理。
杀菌处理条件为：低温等离子体冷杀菌处理30s、间隔90s，处理3次；电压强度：16.5kv/cm，电流：0.9mA；操作间温度：25℃，湿度：55％。
抑菌试验检测结果
散装槟榔杀菌后菌落总数(CFU/g)：
Figure PCTCN2018119978-appb-000001
高压变压器5的输出接口采用高压屏蔽专用线与间隔等距离设置的2-5组高压电场低温等离子体冷杀菌核心装置4所有高压电极组件41的上电极421和下电极422并联连接，采用220V电源使高压电场低温等离子体冷杀菌核心装置4的上电极421与下电极422之间产生60-90KV的高压电场。
高压电场低温等离子体冷杀菌核心装置4的上电极421与下电极422均分别接两个高压变压器5，都是高压电极。其中上电极421安装在传动组件43上，随滑台组可做升降移动；下电极422固定在传送带下方。在传送带上方至上电极421表面的空间区域内形成高压电场，激发包装内部空气电离、电子转移产生等离子体，作用于食物表面，起到杀菌的作用。
根据生产线的产品处理技术要求不同，生产线可以并列设置一组或多组高压电极组件41，本实施例中为三组高压电极组件41。
如图6所示，所述传送带机构3由驱动电机31、传送皮带32、同步带轮传动机构33、主动辊34、从动辊35和涨紧辊36组成，作用是承载运输产品。所述传送主动辊31和涨紧辊36分别设置在机架2的前后两端，所述从动辊35分别设置在主动辊34和涨紧辊36之间的下方，所述传送皮带32绕装在主动辊34、从动辊35和涨紧辊36的外部形成倒梯形结构，所述驱动电机31通过同步带轮传动机构33与主动辊34相连接。其中，所述传送带机构3中的传送皮带32为不带任何金属材料的尼龙或橡胶带所制成。
驱动电机31采用伺服电机，可以精确控制传送带的前进与停止。传送皮带32采用硅胶带，运输工件时可以确保强度；在放电过程中，当做下电极422的介质阻挡板。从动辊35与涨紧辊36的数量与位置示生产线需求的长度而定，本实施例中，两支从动辊35安装在下部，张紧辊36安装在主动辊34的相对方向。根据不同的生产线和产品需求，传送带机构3的头部和尾部需安装对应的接驳装置(图未视)和节拍器(图未视)，以保障产品在传送皮带32上的落位正确。
如图2所示，所述机箱1采用金属外壳，所述机箱1的生产线正面上设置有观察窗10，所述观察窗10的玻璃内部安装金属丝网屏蔽层(图未视)，可以 达到屏蔽的效果。传送皮带32在进、出机箱1的位置，有可升降的高压电场屏蔽门8，放电时高压电场屏蔽门8降下，隔离高压放电空间。其中，所述高压电场屏蔽门8采用铝合金板材制作。
其中，所述控制装置9包括控制箱91和触摸控制屏92，功能上又可分为独立操作和上位机操作。所述控制箱91内设置有PLC控制器(图未视)，接入生产线设备的所有检测信号，输出生产线设备所有的控制信号。PLC控制器与触摸控制屏92对接的同时也预留生产线上位机的输入输出端口93，因此既可以通过触摸控制屏92实现本生产线设备的操作，也可以通过上位机实现本生产线设备的操作，达到自动化生产的目的。
本实施例中，所述高压电场低温等离子体冷杀菌生产线还包括风机11、报警灯12和接地线连接(图未视)，所述风机11设置在机架2上方的机箱1上，报警灯12设置在机箱1上并与PLC控制器相连接，当出现故障时PLC控制器控制报警灯12发出警示信号，防止危险发生。
本发明的高压电场低温等离子体冷杀菌生产线的安全保护：
1、高压击穿保护：差分电源的主机电源有电流检测保护功能，一旦电流过大就会断电保护，防止设备高压产生的击穿现象；
2、高压绝缘保护：所有高压线、接线柱、电极板等高压器件位置，均用绝缘材料隔离；同时确保与金属材料部位有150-180mm的安全绝缘距离；
3、高压电场感应保护：设备全部用金属外壳进行屏蔽，观察窗内部安装金属丝网屏蔽层，包装件进出口设置有可升降的屏蔽门，放电时屏蔽门降下，隔离高压放电空间；
4、开门断电保护：所有可以打开的门，均装有接近传感器，非调试设备时，任何门处于打开状态时，生产线设备无法工作。
综上所述，本发明的高压电场低温等离子体冷杀菌生产线，对包装产品进行低温等离子体间隙多次连续杀菌处理，在保证杀菌效能的前提下，杀菌时间短、效果好效率高，杀菌程序精准可控、操作简单，可适应食品规模化冷杀菌保鲜包装的自动化生产要求。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种高压电场低温等离子体冷杀菌生产线，其特征在于：包括机箱、机架、传送带机构、高压电场低温等离子体冷杀菌核心装置、高压变压器、高压控制箱、配电箱、高压电场屏蔽门以及控制装置；所述高压电场低温等离子体冷杀菌核心装置设置在机架上方的机箱内顺传送带机构运行方向间隔一定距离设置2-5组；所述高压电场低温等离子体冷杀菌核心装置由多组高压电极组件等距并列一排组成；所述高压变压器、高压控制箱和配电箱均位于机架的下部并与高压电极组件相连接；所述传送带机构设置在机架中部，高压电场屏蔽门设置在机架被杀菌包装件的进口和出口处；所述控制装置连接设置在机箱的外部，包括控制箱和设置在控制箱前端的触摸控制屏；所述控制箱内设置有PLC控制器，PLC控制器与触摸控制屏相连接，并控制传送带机构、高压电场低温等离子体冷杀菌核心装置、高压变压器、高压控制箱、配电箱、高压电场屏蔽门和触摸控制屏的程序动作，其中，每组所述高压电场低温等离子体冷杀菌核心装置由2-6组高压电极组件并列一排组成，所述高压电极组件包括电极组件和传动机构，所述电极组件与传动机构相连接，所述电极组件包括上下并列设置的一组或多组的上电极和下电极，由传动机构控制上升或下降来调控上电极和下电极之间的距离，上电极上下移动紧压包装件，下电极设置在传送带机构下方并固定在机架上。
  2. 根据权利要求1所述的高压电场低温等离子体冷杀菌生产线，其特征在于，相邻所述高压电场低温等离子体冷杀菌核心装置之间间隔的中心距离为300-500mm。
  3. 根据权利要求1所述的高压电场低温等离子体冷杀菌生产线，其特征在于，所述传动机构包括主动线性滑台、从动线性滑台、传送带、横梁和伺服电机，所述主动线性滑台和从动线性滑台分别竖向设置在相对侧位置，主动线性 滑台和从动线性滑台内侧均对应设置有同步带轮，所述传送带活动绕装在两个同步带轮之间，所述横梁活动设置在主动线性滑台和从动线性滑台之间的中部，所述伺服电机设置在主动线性滑台的下端，由伺服电机驱动横梁随主动线性滑台和从动线性滑台上下移动。
  4. 根据权利要求3所述高压电场低温等离子体冷杀菌核心装置，其特征在于，所述上电极包括高压电极、固定框架、上介质阻挡绝缘板、安装板和高压线接柱，所述上介质阻挡绝缘板内嵌在固定框架内，所述上介质阻挡绝缘板中间位置的顶部向下开设一上凹槽，高压电极设置于上介质阻挡绝缘板的上凹槽内，所述安装板设置在固定框架和上介质阻挡绝缘板的上端，所述高压线接柱竖向设置在安装板的中间位置，所述高压线接柱的下端向下延伸与高压电极连接，高压线接柱的上端向上延伸至横梁的上端，其中，上介质阻挡绝缘板的材料为：介电常数为3.5-5.0的聚甲基丙烯酸甲酯、酚醛树脂或环氧树脂，凹槽部分的介质阻挡绝缘板厚度1.8-3.0mm。
  5. 根据权利要求4所述的高压电场低温等离子体冷杀菌生产线，其特征在于，所述上电极的两端与传动机构之间的安全屏蔽距离不小于150-180mm。
  6. 根据权利要求1所述高压电场低温等离子体冷杀菌核心装置，其特征在于，所述下电极包括地电极、安装底板和下介质阻挡绝缘板，所述安装底板中间位置的顶部向下开设有一下凹槽，所述下凹槽的底面向下设置有接地螺柱，所述地电极设置于安装底板的下凹槽内并与接地螺柱相连接，所述下介质阻挡绝缘板设置在地电极的上端，其中，下介质阻挡绝缘板材料为：介电常数为3.5-5.0的聚甲基丙烯酸甲酯、酚醛树脂或环氧树脂，厚度为3.0-4.5mm。
  7. 根据权利要求1所述的高压电场低温等离子体冷杀菌生产线，其特征在于，所述高压变压器的输出接口采用高压屏蔽专用线与间隔等距离设置的2-5 组高压电场低温等离子体冷杀菌核心装置所有高压电极组件的上电极和下电极并联连接，采用220V电源使高压电场低温等离子体冷杀菌核心装置的上电极与下电极之间产生60-90KV的高压电场。
  8. 根据权利要求1所述的高压电场低温等离子体冷杀菌生产线，其特征在于，所述机箱采用金属外壳，所述机箱的生产线正面上设置有观察窗，所述观察窗的玻璃内部安装金属丝网屏蔽层。
  9. 根据权利要求1所述的高压电场低温等离子体冷杀菌生产线，其特征在于，所述控制箱还设置有与生产线上位机连接的输入输出端口。
  10. 根据权利要求1所述的高压电场低温等离子体冷杀菌生产线，其特征在于，所述高压电场低温等离子体冷杀菌生产线还包括风机、报警灯和接地线连接，所述风机设置在机架上方的机箱上，报警灯设置在机箱上并与PLC控制器相连接，当出现故障时PLC控制器控制报警灯发出警示信号。
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CN206423475U (zh) * 2016-12-16 2017-08-22 天津科技大学 一种生鲜面常压低温等离子体杀菌装置
CN107348310A (zh) * 2017-05-31 2017-11-17 江南大学 一种电极边缘镶嵌绝缘体的低温等离子体杀菌处理腔

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CN114223824A (zh) * 2021-12-23 2022-03-25 曾宣 一种节能型高压电场低温等离子体冷杀菌生产线设备

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