CN101147613B - High-pressure pulse electric sterilization process device for liquid food - Google Patents
High-pressure pulse electric sterilization process device for liquid food Download PDFInfo
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- CN101147613B CN101147613B CN2007101444989A CN200710144498A CN101147613B CN 101147613 B CN101147613 B CN 101147613B CN 2007101444989 A CN2007101444989 A CN 2007101444989A CN 200710144498 A CN200710144498 A CN 200710144498A CN 101147613 B CN101147613 B CN 101147613B
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Abstract
The present invention relates to a high-voltage pulse electric-field sterilization treatment equipment for liquid food. It is characterized by that the pulse signal output end of its pulse signal generation circuit is connected with control signal input end of pulse generation circuit, two pulse signal output ends of said pulse generation circuit are connected with two pulse control signal input ends of its discharge circuit, the voltage signal input end of said discharge circuit is connected with voltage signal output end of its boost up circuit, two electrode plates of its sterilization condenser are respectively connected with discharge signal output end of discharge circuit and power supply, and its treatment chamber is a sealed rectangular space, two electrode plates of sterilization condenser are respectively fixed on two large-area opposite inner walls of said treatment chamber interior, and on a side wall of said treatment chamber a material inlet is opened. It can be used in the field of liquor food sterilization.
Description
Technical field
The present invention relates to the liquid food sterilization technology field, be specifically related to a kind of go out device of enzyme sterile test of high-voltage pulse liquid food that adopts.
Background technology
The high electric field pulse technology is used for go out enzyme sterilization of liquid food, and the groundwork principle is based on the electrology characteristic difference between eucaryotic cell structure and food liquid system.When food liquid was placed electric field as electrolyte, by electrical breakdown, the perforation that generation can not be repaired or break made cell tissue impaired to the cells of microorganisms film, causes microorganism deactivated under the highfield effect in the food.Be 12～100kv/cm at impulse electric field strength generally, the pulse duration is under the condition of microsecond level, can sterilize to liquid food effectively.The high-voltage pulse sterilization technology has that energy consumption is low, sterilization speed is fast, thereby can effectively preserve characteristics such as the nutritional labeling of food and natural feature.
The go out apparatus cost height of enzyme sterilization of existing high-voltage pulse liquid food, also there is following shortcoming: 1, the unreasonable structure of sterilizing chamber, make non-uniform electric, can't set up the Mathematical Modeling of rational temperature field, electric field space distribution, more can't find out the dangerous spot of spark discharge accurately, also can't overcome the spark discharge problem; 2, in the process of sterilization, often be accompanied by the generation of harmful physical process, for example: electric spark disruptive discharge, can destroy the beneficiating ingredient in the food, cause food chip to occur, destroy food quality, contingent in addition cell reaction not only can destroy multiple nutritional components in the food, also makes the operate as normal that produces dirty thing on the electrode surface and influence sterilizing chamber.
Summary of the invention
In order to solve existing high voltage pulse liquid food bactericidal unit cost height, the problem of the big and sterilizing chamber unreasonable structure of technical difficulty the invention provides a kind of high-pressure pulse electric sterilization process device for liquid food.
High-pressure pulse electric sterilization process device for liquid food is by pulse-triggered generation circuit, sterilization capacitor C C and process chamber are formed, described pulse-triggered generation circuit is by pulse signal generation circuit 10, pulsed triggering circuit 20, booster circuit 30, discharge circuit 40 is formed, it is the pulse signal of 0.5Hz～50Hz that pulse signal generation circuit 10 produces frequency, the control signal input of the pulse signal output end of described pulse signal generation circuit 10 and pulsed triggering circuit 20 is connected, two pulse signal output ends of described pulsed triggering circuit 20 are connected with two pulse control signal inputs of discharge circuit 40, the voltage signal input of described discharge circuit 40 is connected with the voltage signal output end of booster circuit 30, the discharge signal output of described discharge circuit 40 is connected with the pole plate of sterilization capacitor C C, and another pole plate of described sterilization capacitor C C is connected with the power supply ground of discharge circuit 40; Process chamber is the cuboid space of sealing, two pole plates of described sterilization capacitor C C are separately fixed on the relative inwall of two area maximums in the process chamber, the area of described two pole plates equates with the area of the inwall that it is fixed, on the sidewall of the process chamber vertical with described battery lead plate, have a charging door 50, described process chamber is made by insulating materials.
It is simple that the present invention has a circuit structure, the characteristics that cost is low.Adopt high-pressure pulse electric sterilization process device for liquid food of the present invention that liquid foods such as milk, fruit juice are sterilized, through evidence, sterilizing rate is obvious, and the quality of food is not made significant difference.
Description of drawings:
Fig. 1 is an electrical block diagram of the present invention; Fig. 2 is a process chamber configurations schematic diagram of the present invention; Fig. 3 is the structural representation of the specific embodiment seven described process chambers.
The specific embodiment:
The specific embodiment one: high-pressure pulse electric sterilization process device for liquid food is by pulse-triggered generation circuit, sterilization capacitor C C and process chamber are formed, described pulse-triggered generation circuit is by pulse signal generation circuit 10, pulsed triggering circuit 20, booster circuit 30, discharge circuit 40 is formed, it is the pulse signal of 0.5Hz～50Hz that pulse signal generation circuit 10 produces frequency, the control signal input of the pulse signal output end of described pulse signal generation circuit 10 and pulsed triggering circuit 20 is connected, two pulse signal output ends of described pulsed triggering circuit 20 are connected with two pulse control signal inputs of discharge circuit 40, the voltage signal input of described discharge circuit 40 is connected with the voltage signal output end of booster circuit 30, the discharge signal output of described discharge circuit 40 is connected with the pole plate of sterilization capacitor C C, and another pole plate of described sterilization capacitor C C is connected with the power supply ground of discharge circuit 40; Process chamber is the cuboid space of sealing, two pole plates of described sterilization capacitor C C are separately fixed on the relative inwall of two area maximums in the process chamber, the area of described two pole plates equates with the area of the inwall that it is fixed, on the sidewall of the process chamber vertical with described battery lead plate, have a charging door 50, described process chamber is made by insulating materials.
Pulsed triggering circuit 20 in the present embodiment is under the pulse signal control of 0.5Hz～50Hz in frequency, converts the alternating current 220V voltage signal to pulse signal output that peak-to-peak value is 6000V.
The described high-pressure pulse electric sterilization process device for liquid food of present embodiment is that pulse-triggered generation circuit produces the high-voltage pulse signal of frequency adjustable and is applied on two battery lead plates of the sterilization capacitor C C that is installed in the process chamber and then reaches the liquid in the process chamber is carried out autoclaved purpose.The described high-pressure pulse electric sterilization process device for liquid food of present embodiment when in use, earlier in process chamber, fill processed liquid food by the charging door of process chamber with syringe, adjust the frequency values of frequency for needing of the output pulse signal of pulse signal generation circuit 10 then, the power supply of make pulse circuits for triggering 20, the output output pulse triggering signal of described pulsed triggering circuit 20 triggers 40 pairs of sterilizations of discharge circuit capacitor C C and discharges, and then make between two pole plates of described sterilization capacitor C C and produce high voltage pulse, realize the liquid that is in the middle of two pole plates of sterilization capacitor C C in the process chamber is carried out the high voltage pulse sterilization.Because two pole plates of sterilization capacitor C C are full of on two interior inwalls of process chamber, make the electric field in inner treatment chamber space even, can set up the rational temperature field, bactericidal effect is good.
The specific embodiment two: the difference of present embodiment and the specific embodiment one described high-pressure pulse electric sterilization process device for liquid food is, described pulsed triggering circuit 20 is by rectifier bridge D11, first resistance R 1, first capacitor C 1, controllable silicon Q2 and pulse transformer T2 form, two ac input ends of rectifier bridge D11 are connected with two power output ends of the alternating current 220V power supply of outside respectively, one end of first resistance R 1 is connected with the cathode output end of described rectifier bridge D11, the other end of described first resistance R 1 respectively with an end of first capacitor C 1, the negative electrode of controllable silicon Q2 connects, the other end of described first capacitor C 1 is connected with the cathode output end of rectifier bridge D11, the anode of described controllable silicon Q2 is connected by the primary coil of pulse transformer T2 and the cathode output end of rectifier bridge D11, the two ends of the secondary coil of described pulse transformer T2 respectively with two pulse control signal inputs of discharge circuit 40, the control utmost point of described controllable silicon Q2 is connected with the pulse signal output end of pulse signal generation circuit 10.
Pulsed triggering circuit 20 in the present embodiment adopts pulse transformer T2 output signals, has avoided the high-voltage pulse signal pulse signals generation circuit 10 in the after discharge circuit and the influence of pulsed triggering circuit 20, makes system works more stable, reliable.
The specific embodiment three: the difference of the present embodiment and the specific embodiment one or two described high-pressure pulse electric sterilization process device for liquid food is, described booster circuit 30 is by pressure regulator TT, step-up transformer T1, second resistance R 2, the first silicon stack D1, charging capacitor C2 and the 3rd resistance R 3 are formed, two signal output parts of described pressure regulator TT are connected with the two ends of the primary coil of step-up transformer T1 respectively, one end of the secondary coil of described step-up transformer T1 is connected with an end of second resistance R 2, the other end of the secondary coil of described step-up transformer T1 is connected with power supply ground, the other end of described second resistance R 2 is connected with the anode of the first silicon stack D1, the negative electrode of the described first silicon stack D1 is connected with the voltage signal input of discharge circuit 40, and charging capacitor C2 and the 3rd resistance R 3 are connected in parallel between the negative electrode and power supply ground of the first silicon stack D1.
The described booster circuit 30 of present embodiment adopts transformer to boost, elementary employing pressure regulator at transformer provides power supply, can control the booster circuit output voltage amplitude flexibly, be the pulse voltage signal that the high-pressure pulse electric sterilization process device for liquid food of present embodiment can provide multiple amplitude.
The specific embodiment four: the difference of the present embodiment and the specific embodiment one or two or three described high-pressure pulse electric sterilization process device for liquid food is, described discharge circuit 40 is by the 4th resistance R 4, discharge capacity C3, three grades of ignition switches 41, inductance L 1, the second silicon stack D2 forms, wherein three grades of ignition switches 41 are by solid electrode A, coreless armature B and triggering pin Z form, described triggering pin Z is fixed on the center of hemispheric coreless armature B, gapped with the current-carrying part of described coreless armature B, solid electrode A is hemispheric, and the distance between described solid electrode A and the coreless armature B can be adjusted; One end of the 4th resistance R 4 is connected with the voltage signal output end of booster circuit 30, the other end of described the 4th resistance R 4 respectively with the end of discharge capacity C3, the solid electrode A of three grades of ignition switches 41 connects, the other end of described discharge capacity C3 is connected with power supply ground, the triggering pin Z of described three grades of ignition switches 41 is connected with two signal output parts of pulsed triggering circuit 20 respectively with coreless armature B, the coreless armature B of described three grades of ignition switches 41 respectively with the pole plate of sterilization capacitor C C, inductance L 1 one ends, the negative electrode of the second silicon stack D2 connects, another pole plate of described sterilization capacitor C C and the other end of inductance L 1, the anode of the second silicon stack D2 all is connected with power supply ground.
The course of work of described three grades of ignition switches 41 is, when producing spark discharge between triggering pin Z and the coreless armature B, cause between described coreless armature B and the solid electrode A intermittently to puncture and connect, make discharge capacity C3 with the sterilization capacitor C C discharge of certain frequency in process chamber.
The specific embodiment five: the difference of present embodiment and the specific embodiment four described high-pressure pulse electric sterilization process device for liquid food is that described discharge capacity C3 is made up of a plurality of capacitances in series.
Because in high-frequency pulse charge and discharge process, capacitor damages easily, present embodiment adopts the circuit structure of capacitances in series, can prevent influences whole system operation owing to the damage of discharge capacity, promptly when having an electric capacity breakdown in the electric capacity of a plurality of series connection, but other electric capacity is operate as normal still, can not influence the work of system.
The specific embodiment six: present embodiment and one to five arbitrary be that the difference of the described high-pressure pulse electric sterilization process device for liquid food of the specific embodiment is, described pulse signal generation circuit 10 is by the pulse generating circuit U1 and the 6th resistance R 6 of 555 integrated circuits, the 5th resistance R 5, triode Q22 forms, the pulse signal output end of the pulse generating circuit U1 of described 555 integrated circuits is connected with an end of the 5th resistance R 5, the other end of described the 5th resistance R 5 is connected with the base stage of triode Q22, the colelctor electrode of described triode Q22 is connected with an end of the 6th resistance R 6, the other end of described the 6th resistance R 6 is connected with the positive pole of dc source, and the emitter stage of described triode Q22 is connected with the control signal input of pulsed triggering circuit 20.
The pulse generating circuit of 555 integrated circuits that present embodiment adopts is pulse signal generation circuits of comparative maturity in the prior art, stable performance, and the frequency adjustable of output pulse signal.
The specific embodiment seven: the difference of present embodiment and the specific embodiment one to six any described high-pressure pulse electric sterilization process device for liquid food of embodiment is, described process chamber also increases a discharging opening 51, and described charging door 50 and discharging opening 51 lay respectively on two perpendicular relative sidewalls of the battery lead plate with sterilization capacitor C C on the process chamber.
The described process chamber of present embodiment enters process chamber by pipeline from the charging door of process chamber with pending liquid food when in use, and the discharging opening from process chamber flows out process chamber then.
Claims (7)
1. high-pressure pulse electric sterilization process device for liquid food, it is characterized in that it is by pulse-triggered generation circuit, sterilization electric capacity (CC) and process chamber are formed, described pulse-triggered generation circuit is by pulse signal generation circuit (10), pulsed triggering circuit (20), booster circuit (30), discharge circuit (40) is formed, it is the pulse signal of 0.5Hz～50Hz that pulse signal generation circuit (10) produces frequency, the pulse signal output end of described pulse signal generation circuit (10) is connected with the control signal input of pulsed triggering circuit (20), two pulse signal output ends of described pulsed triggering circuit (20) are connected with two pulse control signal inputs of discharge circuit (40), the voltage signal input of described discharge circuit (40) is connected with the voltage signal output end of booster circuit (30), the discharge signal output of described discharge circuit (40) is connected with a pole plate of sterilization electric capacity (CC), and another pole plate of described sterilization electric capacity (CC) is connected with the power supply ground of discharge circuit (40); Process chamber is the cuboid space of sealing, two pole plates of described sterilization electric capacity (CC) are separately fixed on the relative inwall of two area maximums in the process chamber, the area of described two pole plates equates with the area of the inwall that it is fixed, on the sidewall of the process chamber vertical with described battery lead plate, have a charging door (50), described process chamber is made by insulating materials.
2. high-pressure pulse electric sterilization process device for liquid food according to claim 1, it is characterized in that, described pulsed triggering circuit (20) is by rectifier bridge (D11), first resistance (R1), first electric capacity (C1), controllable silicon (Q2) and pulse transformer (T2) are formed, two ac input ends of rectifier bridge (D11) are connected with two power output ends of the alternating current 220V power supply of outside respectively, one end of first resistance (R1) is connected with the cathode output end of described rectifier bridge (D11), the other end of described first resistance (R1) respectively with an end of first electric capacity (C1), the negative electrode of controllable silicon (Q2) connects, the other end of described first electric capacity (C1) is connected with the cathode output end of rectifier bridge (D11), the anode of described controllable silicon (Q2) is connected by the primary coil of pulse transformer (T2) and the cathode output end of rectifier bridge (D11), the two ends of the secondary coil of described pulse transformer (T2) are connected with two pulse control signal inputs of discharge circuit (40) respectively, and the control utmost point of described controllable silicon (Q2) is connected with pulse signal generation circuit (10) pulse signal output end.
3. high-pressure pulse electric sterilization process device for liquid food according to claim 1, it is characterized in that, described booster circuit (30) is by pressure regulator (TT), step-up transformer (T1), second resistance (R2), first silicon stack (D1), charging capacitor (C2) and the 3rd resistance (R3) are formed, two signal output parts of described pressure regulator (TT) are connected with the two ends of step-up transformer (T1) primary coil respectively, one end of described step-up transformer (T1) secondary coil is connected with an end of second resistance (R2), the other end of described step-up transformer (T1) secondary coil is connected with power supply ground, the other end of described second resistance (R2) is connected with the anode of first silicon stack (D1), the negative electrode of described first silicon stack (D1) is connected with the voltage signal input of discharge circuit (40), and charging capacitor (C2) and the 3rd resistance (R3) are connected in parallel between the negative electrode and power supply ground of first silicon stack (D1).
4. high-pressure pulse electric sterilization process device for liquid food according to claim 1, it is characterized in that described discharge circuit (40) is by the 4th resistance (R4), discharge capacity (C3), three grades of ignition switches (41), inductance (L1), second silicon stack (D2) is formed, wherein three grades of ignition switches (41) are by solid electrode (A), coreless armature (B) and triggering pin (Z) are formed, described triggering pin (Z) is fixed on the center of hemispheric coreless armature (B), gapped with the current-carrying part of described coreless armature (B), solid electrode (A) is hemispheric, and the distance between described solid electrode (A) and the coreless armature (B) can be adjusted; One end of the 4th resistance (R4) is connected with the voltage signal output end of booster circuit (30), the other end of described the 4th resistance (R4) respectively and an end of discharge capacity (C3), the solid electrode (A) of three grades of ignition switches (41) connects, the other end of described discharge capacity (C3) is connected with power supply ground, the triggering pin (Z) of described three grades of ignition switches (41) is connected with two signal output parts of pulsed triggering circuit (20) respectively with coreless armature (B), the coreless armature (B) of described three grades of ignition switches (41) is respectively at a pole plate of sterilization electric capacity (CC), one end of inductance (L1), the negative electrode of second silicon stack (D2) connects, another pole plate of described sterilization electric capacity (CC), the other end of inductance (L1), the anode of second silicon stack (D2) links together and is connected with power supply ground.
5. high-pressure pulse electric sterilization process device for liquid food according to claim 4 is characterized in that, described discharge capacity (C3) is made up of a plurality of capacitances in series.
6. according to the described high-pressure pulse electric sterilization process device for liquid food of the arbitrary claim of claim 1 to 5, it is characterized in that pulse generating circuit (U1) and six resistance (R6) of described pulse signal generation circuit (10) by 555 integrated circuits, the 5th resistance (R5), triode (Q22) is formed, the pulse signal output end of the pulse generating circuit of described 555 integrated circuits (U1) is connected with an end of the 5th resistance (R5), the other end of described the 5th resistance (R5) is connected with the base stage of triode (Q22), the colelctor electrode of described triode (Q22) is connected with an end of the 6th resistance (R6), the other end of described the 6th resistance (R6) and the positive pole of dc source are connected, and the emitter stage of described triode (Q22) is connected with the control signal input of pulsed triggering circuit (20).
7. high-pressure pulse electric sterilization process device for liquid food according to claim 1, it is characterized in that, described process chamber also increases a discharging opening (51), and described charging door (50) and discharging opening (51) lay respectively on two perpendicular relative sidewalls of the battery lead plate with sterilization electric capacity (CC) on the process chamber.
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| CN2007101444989A CN101147613B (en) | 2007-10-26 | 2007-10-26 | High-pressure pulse electric sterilization process device for liquid food |
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| CN2007101444989A CN101147613B (en) | 2007-10-26 | 2007-10-26 | High-pressure pulse electric sterilization process device for liquid food |
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| CN101147613B true CN101147613B (en) | 2011-05-18 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101502304B (en) * | 2009-03-12 | 2011-09-21 | 浙江大学 | High-voltage pulse electric field processing chamber for continuous liquid foodstuffs sterilization |
| CN102640965A (en) * | 2011-11-11 | 2012-08-22 | 江南大学 | High voltage pulse electric field sterilization common-field treatment chamber with adjustable electrode distance |
| CN103951021B (en) * | 2014-04-13 | 2016-08-17 | 浙江省医疗器械研究所 | High voltage electric field kills the method and device of microorganism in Pipeline Water |
| CN104798879A (en) * | 2015-04-03 | 2015-07-29 | 熊秋红 | Milk high-pressure sterilizer |
| CN105380068B (en) * | 2015-10-22 | 2016-10-12 | 珠海市横琴新区金康友科技股份有限公司 | Detoxicating machine, poison-removing method and electrode mounting method thereof |
| 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 |
| CN209202050U (en) * | 2018-04-04 | 2019-08-06 | 襄阳九鼎昊天环保设备有限公司 | A kind of high-pressure pulse electric sterilization system applied to liquid food sterilization |
| CN110432336A (en) * | 2019-06-28 | 2019-11-12 | 石家庄君乐宝乳业有限公司 | Cheese and preparation method thereof |
| 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 |
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| CN1072328A (en) * | 1992-09-11 | 1993-05-26 | 能源部武汉高压研究所 | But the high-voltage pulse sterilizing method in the processing of liquid state food |
| JP2004194930A (en) * | 2002-12-19 | 2004-07-15 | Matsushita Electric Ind Co Ltd | Sterilization method and sterilizer |
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- 2007-10-26 CN CN2007101444989A patent/CN101147613B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072328A (en) * | 1992-09-11 | 1993-05-26 | 能源部武汉高压研究所 | But the high-voltage pulse sterilizing method in the processing of liquid state food |
| JP2004194930A (en) * | 2002-12-19 | 2004-07-15 | Matsushita Electric Ind Co Ltd | Sterilization method and sterilizer |
Non-Patent Citations (1)
| Title |
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| 依成武.高压脉冲电场冲击波法的液体杀菌实验研究.《高电压技术》.2007,第33卷(第2期),109. * |
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