Composite high voltage pulse electric field, and electric field sterilization device and method

A high-voltage pulsed electric field and high-voltage pulse technology, which is applied in the direction of electric pulse generator circuit, water supply device, energy storage element to generate pulses, etc., can solve the problem of low pulse electric field strength, low breakdown field strength, and difficulty in achieving high field strength and high efficiency Sterilization and other issues

Pending Publication Date: 2017-05-24
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

However, at present, such devices are basically sterilized by a high-voltage pulsed electric field with a width greater than a few microseconds. Simply using this electric field sterilization method, due to the breakdown field of the bacteria-containing liquid (such as fresh milk or freshly squeezed juice), It is strongly related to the electric field duration t (basically with t -1/3

Method used

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  • Composite high voltage pulse electric field, and electric field sterilization device and method
  • Composite high voltage pulse electric field, and electric field sterilization device and method
  • Composite high voltage pulse electric field, and electric field sterilization device and method

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Embodiment Construction

[0050]All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0051] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0052] Relevant description of the present invention:

[0053] 1. The processing chamber is a chamber and its accessories that contain two electrodes (positive and negative electrodes) that apply an electric field to the bacterial liquid.

[0054] 2. The liquid conveying system is a system that is connected with the processing chamber so that the liquid in the processing chamber can flow. Bacteria-containing liquid delivery system refers to a system consisting of pumps (including drive motors), pipes...

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Abstract

The invention relates to the field of electric pulse generation, biomedicine and food processing, and provides a composite high voltage pulse electric field, and an electric field sterilization device and method in view of the problems in the prior art. A microsecond high voltage pulse generation circuit and a nanosecond high voltage pulse generation circuit are triggered by a trigger control circuit that integrates electric parameter detection with waveform parameter control, in order to output microsecond and nanosecond high voltage pulse signals according to a set pulse waveform parameter and a time sequence, the microsecond and nanosecond high voltage pulse signals are loaded to a sterilization processor together, the composite high voltage pulse electric field with a preset waveform structure is loaded on the sterilization processor to load a microsecond-nanosecond composite high voltage pulse electric field on a processed material so as to form dual inhibition of survival ability and fertility of bacteria, thereby improving the sterilization efficiency of the pulse electric field, and prolonging the expiration date of the processed material.

Description

technical field [0001] The invention relates to the fields of electric pulse generation, biomedicine and food processing, in particular to a compound high-voltage pulse electric field, an electric field sterilization device and method. Background technique [0002] In the fields of food processing and medical treatment, sterilization is a crucial work. At present, the sterilization methods used in industry include heat sterilization, chemical agent sterilization, strong light sterilization, etc. Although these sterilization methods can kill bacteria, the existence of these sterilization methods may cause changes in the composition of the processed object or chemical residues, etc. problems, which have certain limitations in its application. For example, heat sterilization often changes the physical or chemical properties of the processed object (such as food), resulting in changes in its color, aroma, taste, organizational structure, and decline in nutritional value, seriou...

Claims

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Application Information

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IPC IPC(8): H03K3/57A61L2/03A23L3/32
CPCA61L2/0011A61L2/03A23L3/32H03K3/57A61L2202/11A61L2202/21
Inventor 李洪涛赵娟李博婷邓维军王波康传会黄宇鹏
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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