Hydrogen peroxide low-temperature plasma sterilization machine

Abstract

The invention relates to a hydrogen peroxide low-temperature plasma sterilization machine. The sterilization machine comprises a machine body, a cylinder body, an inner cylinder, a vacuuming port, a control system, a power supply, a hydrogen peroxide filling port, a programmable controller, an air inlet and an air outlet, wherein the cylinder body is arranged on the machine body; all the vacuuming port, the air inlet, the air outlet and the hydrogen peroxide filling port are communicated with an inner chamber of the cylinder body by pipelines which are provided with valves; the inner cylinderis arranged in the cylinder body by a support block; brackets are arranged in the inner cylinder; the inner cylinder consists of an inner cylinder wall and a wrapping ring of two ends of the inner cylinder wall; a groove is formed on the wrapping ring; an insulating ring is embedded in the groove; the two ends of the inner cylinder wall are inserted into the insulating ring; and through holes are uniformly distributed on the inner cylinder wall. The sterilization machine can prevent 'point discharge' to ensure that an electrode can stably generate an electric field of a displacement current.

Description

technical field [0001] The invention relates to a sterilization device, in particular to a hydrogen peroxide plasma sterilizer. Background technique [0002] At present, the discharge form of hydrogen peroxide sterilizers produced at home and abroad usually adopts target ground discharge, that is, the cylinder body is the ground end, and the target is the inner cylinder wall. Surgical equipment or other objects to be sterilized are placed in the inner cylinder wall. During operation, the inner cylinder wall discharges to the cylinder to generate glow discharge, which is called "glow discharge area". However, the two ends of the inner electrode (inner cylinder wall) are prone to "point discharge" to the ground, which will cause arc discharge in severe cases, and then affect the activity and efficiency of the RF power supply. [0003] Plasma is a conductive fluid, and active particles such as ions, electrons, excited molecules, atoms, free radicals, X-rays, and vacuum ultr...

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Problems solved by technology

However, the two ends of the inner electrode (inner cylinder wall) are prone to "point discharge" to the ground, which will cause arc discharge in severe cases, which will affect the activity and efficiency of the RF power supply

[0003] Plasma is a conductive fluid, and active particles such as ions, electrons, excited molecules, atoms, free radicals, X-rays, and vacuum ultraviolet light generated in the glow discharge area will inevitably diffuse to the non-glow discharge area. Point discharge will lead to uneven discharge, relative to the instantaneous concentration of active particles of various plasmas generated, which will affect the sterilization effect

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