Pulsation vacuum sterilizer and vacuum circulating system thereof

Abstract

The invention discloses a pulsation vacuum sterilizer and a vacuum circulating system thereof. The vacuum circulating system comprises a sterilization chamber a well as a water tank, a steam generatorand a steam ejector which are connected end to end to form a closed-loop chain; the steam ejector comprises a steam inlet, a steam outlet and an evacuation port; the steam inlet and an inlet of the sterilization chamber both communicate with an outlet of the steam generator, the steam outlet communicates with a water inlet of the water tank, and the vacuumizing port communicates with a sterilization cavity of the sterilization chamber; and a heat exchanger used for achieving steam condensation is connected between the steam outlet and the water tank. According to the vacuum circulating system, the steam generator is used for providing steam for the sterilization cavity for high-temperature sterilization; the vacuumizing operation of the sterilization cavity is realized by utilizing the vacuumizing port; and at the same time, steam and water achieve working medium recovery in the closed-loop chain structure formed by the water tank, the steam generator and the steam ejector, and suitability for long-term operation of the pulsation vacuum sterilizer is achieved.

Description

technical field [0001] The invention relates to the field of sterilizers, in particular to a vacuum circulation system for a pulse vacuum sterilizer. It also relates to a pulsating vacuum sterilizer, including the above-mentioned vacuum circulation system. Background technique [0002] The pulsating vacuum sterilizers currently on the market basically use water ring vacuum pumps or dry vacuum pumps to vacuum the sterilization chamber. These two vacuum methods are noisy and costly. Among them, the water ring vacuum pump cannot directly extract water vapor, and the water vapor needs to be cooled before it can be evacuated. Moreover, the water ring vacuum pump has a large volume, large water consumption, high installation and maintenance costs, and needs to continuously provide external water sources during operation. External drain pipe. However, the dry vacuum pump has low evacuation capacity, poor air removal effect, and the evacuation capacity will decrease after continuo...

AI Technical Summary

Problems solved by technology

[0002] At present, the pulsating vacuum sterilizers on the market basically use a water ring vacuum pump or a dry vacuum pump to vacuumize the sterilization chamber. These two vacuum methods are noisy and costly.

Among them, the water ring vacuum pump cannot directly extract water vapor, and the water vapor needs to be cooled before it can be evacuated, and the water ring vacuum pump has a large volume, large water consumption, high installation and maintenance costs, and needs to continuously provide external water sources during operation. External drainage pipe

The dry vacuum pump has low evacuation capacity, poor air removal effect, and the evacuation capacity will decrease after continuous operation, so it is not suitable for long-term fatigue operation.

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