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High-pressure pulse electric sterilization process device for liquid food

A high-voltage pulsed electric field and liquid food technology, which is applied in food science and other fields, can solve the problems of high technical difficulty, unreasonable structure of the sterilization chamber, and high cost of the sterilization device, and achieve the effect of simple circuit structure, obvious sterilization rate, and low cost

Inactive Publication Date: 2011-05-18
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of high cost, high technical difficulty and unreasonable structure of the sterilization chamber of the existing high-voltage pulse liquid food sterilization device, the present invention provides a high-voltage pulse electric field sterilization treatment device for liquid food

Method used

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  • High-pressure pulse electric sterilization process device for liquid food
  • High-pressure pulse electric sterilization process device for liquid food
  • High-pressure pulse electric sterilization process device for liquid food

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specific Embodiment approach 1

[0008] Embodiment 1: The high-voltage pulse electric field sterilization treatment device for liquid food is composed of a pulse trigger generating circuit, a sterilization capacitor CC and a processing chamber. The pulse trigger generating circuit is composed of a pulse signal generating circuit 10, a pulse trigger circuit 20, and a booster circuit. 30. The discharge circuit 40 is composed of a pulse signal generating circuit 10 generating a pulse signal with a frequency of 0.5Hz to 50Hz. The pulse signal output terminal of the pulse signal generating circuit 10 is connected to the control signal input terminal of the pulse trigger circuit 20. The pulse signal The two pulse signal output terminals of the trigger circuit 20 are connected with the two pulse control signal input terminals of the discharge circuit 40, the voltage signal input terminals of the discharge circuit 40 are connected with the voltage signal output terminals of the booster circuit 30, and the discharge cir...

specific Embodiment approach 2

[0011] Embodiment 2: The difference between this embodiment and the high-voltage pulse electric field sterilization treatment device for liquid food described in Embodiment 1 is that the pulse trigger circuit 20 is composed of a rectifier bridge D11, a first resistor R1, a first capacitor C1, SCR Q2 and pulse transformer T2 are composed, the two AC input ends of the rectifier bridge D11 are respectively connected to the two power output ends of the external AC 220V power supply, and one end of the first resistor R1 is connected to the positive output end of the rectifier bridge D11 The other end of the first resistor R1 is respectively connected to one end of the first capacitor C1 and the cathode of the thyristor Q2, and the other end of the first capacitor C1 is connected to the negative output end of the rectifier bridge D11. The anode of the silicon controlled silicon Q2 is connected to the negative output terminal of the rectifier bridge D11 through the primary coil of the...

specific Embodiment approach 3

[0013] Specific embodiment three: The difference between this embodiment and the liquid food high-voltage pulse electric field sterilization treatment device described in specific embodiment one or two is that the boost circuit 30 is composed of a voltage regulator TT, a step-up transformer T1, a second The resistor R2, the first silicon stack D1, the charging capacitor C2 and the third resistor R3 are composed. The two signal output ends of the voltage regulator TT are respectively connected to the two ends of the primary coil of the step-up transformer T1. The step-up transformer One end of the secondary coil of T1 is connected to one end of the second resistor R2, the other end of the secondary coil of the step-up transformer T1 is connected to the power ground, the other end of the second resistor R2 is connected to the first silicon stack D1 The anode is connected, the cathode of the first silicon stack D1 is connected to the voltage signal input end of the discharge circu...

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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 sterilizationcondenser 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 [0001] The invention relates to the technical field of liquid food sterilization, in particular to a device for an enzyme sterilization test using high-voltage pulse liquid food. Background technique [0002] The high-voltage electric pulse technology is used to kill enzymes and sterilize liquid food. The main working principle is based on the difference in electrical characteristics between the cell structure and the liquid food system. When liquid food is placed in an electric field as an electrolyte, the cell membranes of microorganisms in the food are punctured by electricity under the action of a strong electric field, resulting in irreparable perforations or ruptures, which damage cell tissues and lead to inactivation of microorganisms. Generally, under the conditions of pulse electric field strength of 12-100kv / cm and pulse duration of microseconds, it can effectively sterilize liquid food. High-pressure pulse sterilization technology has the characte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L2/50
Inventor 张长利杨方房俊龙张喜海沈维政
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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