CN2778280Y

CN2778280Y - Pulse magnetic sterilizing equipment

Info

Publication number: CN2778280Y
Application number: CN 200520001914
Authority: CN
Inventors: 李军; 高海生
Original assignee: Hebei Normal University of Science and Technology
Current assignee: Hebei Normal University of Science and Technology
Priority date: 2005-01-31
Filing date: 2005-01-31
Publication date: 2006-05-10
Anticipated expiration: 2015-01-31

Abstract

The utility model discloses a pulse magnetic field sterilizing device, which comprises a capacitance energy storage module and an energy conversion module, wherein the capacitance energy storage module comprises a charging controlled silicon, a transformer, a capacitor, a current-limiting resistor, a rectification circuit, an electric energy sampling circuit and a voltage comparison circuit. The transformer can make the commercial power boost to 2200V-2400V. The current after boosting voltage can pass through the rectification circuit to be converted into the pulse current by the charging controlled silicon. Then, the pulse current can charge the capacitor by the current-limiting resistor. The electric energy sampling circuit is connected in parallel with the capacitor. The energy conversion module comprises a discharging controlled silicon, a coil and a diode, wherein the discharging controlled silicon, the capacitor and the coil can form a generating loop of the forward current. The diode and the capacitor can form a releasing loop of the back current. The utility model has the advantages of short sterilizing time and high sterilizing efficiency. The utility model can realize the purpose of high efficiency sterilization by a few pulses, and moreover, the utility model has small temperature rising process. Thus, the utility model not only can realize sterilization, but also can keep original flavor, taste, color and sweet, and the quality of the foods, and components of the foods can not be changed.

Description

The pulsed magnetic field disinfection equipment

Technical field

This utility model relates to a kind of germ-resistant device in strong magnetic field impulse field that utilizes.

Background technology

Sterilization is one of important operation in industries such as food, chemical industry, medicine.At present institute extensively the method for disinfection of employing mainly contain two kinds of chemical method and physics methods, chemical method is to come kill bacteria by adding chemical substance, reach the effect of anti-corrosive fresh-keeping, but this method is owing to introduced chemical substance, cause secondary pollution easily for food, medicine etc., thereby influence the healthy of people; The physics method mainly is heat sterilization such as pasteurization, high temperature method and ultra high temperature short time sterilization method, and these methods are normally carried out under high-temperature condition, and therefore nutrition and the local flavor to food damages.At present, sterilization process heats up little, and is also relatively poor to the most of bactericidal effect of non-heat sterilization method that heat-sensitive ingredients influence in the food is lower, can't use in the food sterilization field.

The utility model content

At the problem of above-mentioned existence, the purpose of this utility model is to provide a kind of pulsed magnetic field disinfection equipment, and this equipment can sterilize under room temperature or low temperature in the effect by pulsed magnetic field.

For achieving the above object, a kind of pulsed magnetic field disinfection equipment of this utility model comprises: electric capacity accumulation of energy module, energy conversion module, described electric capacity accumulation of energy module comprises the charging controllable silicon, transformator, capacitor, current-limiting resistance, rectification circuit, electric energy sample circuit and voltage comparator circuit, described transformator is raised to 2200～2400V with civil power, electric current after described charging controllable silicon boosts this changes pulsating current into by described rectification circuit, this pulsating current charges to described capacitor by described current-limiting resistance again, described electric energy sample circuit is in parallel with described capacitor, when the voltage of described capacitor reaches predetermined voltage, after described comparator compares sampled voltage and controls voltage, to described charging controllable silicon output control signal, finish the electric capacity accumulation of energy; Described energy conversion module comprises discharging thyristor, coil and diode, described discharging thyristor, capacitor and coil constitute the power generation circuit of forward current, described diode and described capacitor constitute the bleed off loop of reverse current, and described discharging thyristor is converted to pulsed magnetic field with the electric field that described electric capacity accumulation of energy module produces by described coil.

Further, described rectification circuit is a bridge rectifier.

Further, described discharging thyristor is that withstand voltage 2000V, current effective value are the controllable silicon of 800A.

Further, described strong magnetic field impulse sterilizing unit can be by the sequencing and the automatization of Experiment of Computer Control Technology program pulse effect.

This utility model sterilizing time is short, the germicidal efficiency height only need several subpulses just can realize efficient sterilizing, and temperature rise is little, therefore realized and to have sterilized, can keep the original local flavor of food, flavour, color perfume (or spice), quality and component (vitamin, aminoacid etc.) constant again.In addition, this utility model energy consumption is low, pollution-free, can be widely used in various canned (or encapsulation) preceding liquid material, alcohol product (medicated beer, yellow wine, low fermented wine, various fruit wine etc.) for example, the disinfection of other drinking waters such as liquid food (milk, bean milk, fruit and vegerable vegetable juice etc.) and mineral water, pure water, tap water.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a circuit diagram of the present utility model.

The specific embodiment:

As Fig. 1, shown in 2, this utility model comprises: electric capacity accumulation of energy module, energy conversion module, electric capacity accumulation of energy module comprises charging controllable silicon 2, transformator 1, capacitor 7, current-limiting resistance 5, bridge rectifier 4, electric energy sample circuit 6 and comparator 3, transformator 1 is raised to 2400V with civil power, and change pulsating current into by rectification circuit 4, when 2 conductings of charging controllable silicon, this pulsating current is again by 7 chargings of 5 pairs of capacitors of current-limiting resistance, the two-stage parallel connection of electric energy sample circuit 6 and capacitor 7, to detect what of capacitor 7 accumulation of energys, when the voltage of capacitor 7 reaches predetermined voltage, after comparator 3 compares sampled voltage and controls voltage, to charging controllable silicon 2 output control signals, make the 6 not conductings of charging controllable silicon, thereby finish the accumulation of energy process.Energy conversion module comprises discharging thyristor 9, coil 10 and heavy-duty diode 8, discharging thyristor 9, capacitor 7 and coil 10 constitute the power generation circuit of forward current, diode 8 and capacitor 7 constitute the bleed off loop of reverse currents, after the accumulation of energy process finishes, discharging thyristor 9 conductings are converted to pulsed magnetic field by coil 10 with the electric field energy that electric capacity accumulation of energy module produces.Because when producing strong pulsed magnetic field, the peak value of pulse current is very big, can select 2000V, current effective value for use is that the controllable silicon of 800A is as discharging thyristor 9.For different needs, instrument can be equipped with the coil of different size, close can be in coil around long solenoid with magnetically confined, but inductance value is big, the time rate of change of electric current is little, so dB/dt is little; Number of turn dB/dt and the penetration depth few and pulsed magnetic field that coil produces that mean radius is big is all bigger; The number of turn pulsed magnetic field distributed areas that coil produced few and that mean radius is little are little, have good positioning.This utility model also can be by the sequencing and the automatization of Experiment of Computer Control Technology program pulse effect.Coil external one closed yoke encases solenoid coil, and the magnetic line of force that solenoid coil is produced wraps in the space in the yoke as far as possible, prevents the leakage of the magnetic line of force; Wherein, yoke is made with stalloy, and coil copper conductor coiling is to reach the purpose of protection and raising magnetic field intensity.

Claims

1, a kind of pulsed magnetic field disinfection equipment, it is characterized in that, comprise: electric capacity accumulation of energy module, energy conversion module, described electric capacity accumulation of energy module comprises the charging controllable silicon, transformator, capacitor, current-limiting resistance, rectification circuit, electric energy sample circuit and voltage comparator circuit, described transformator is raised to 2200～2400V with civil power, electric current after described charging controllable silicon boosts this changes pulsating current into by described rectification circuit, this pulsating current charges to described capacitor by described current-limiting resistance again, described electric energy sample circuit is in parallel with described capacitor, when the voltage of described capacitor reaches predetermined voltage, after described comparator compares sampled voltage and controls voltage, to described charging controllable silicon output control signal, finish the electric capacity accumulation of energy; Described energy conversion module comprises discharging thyristor, coil and diode, described discharging thyristor, capacitor and coil constitute the power generation circuit of forward current, described diode and described capacitor constitute the bleed off loop of reverse current, and described discharging thyristor is converted to pulsed magnetic field with the electric field that described electric capacity accumulation of energy module produces by described coil.

2, pulsed magnetic field disinfection equipment according to claim 1 is characterized in that, described rectification circuit is a bridge rectifier.

3, pulsed magnetic field disinfection equipment according to claim 1 and 2 is characterized in that, described discharging thyristor is that withstand voltage 2000V, current effective value are the controllable silicon of 800A.

4, pulsed magnetic field disinfection equipment according to claim 3 is characterized in that, described pulsed magnetic field disinfection equipment can be by the sequencing and the automatization of Experiment of Computer Control Technology program pulse effect.