Rotary vane vacuum pump in sealed vessel

The purpose of this paper is to provide a vacuum device for vacuum vessel and develop the application of rotary vane vacuum pump in sealed vessel. Why vacuum in sealed containers? Sealed containers are widely used in all aspects of life. They are usually used under the storage conditions of this type of highly sealed beverage, spices, seasonings, etc. storage in sealed containers is minimized, which is triggered by deterioration in contact with the external environment. The existing containers not only meet the requirements of containing liquid or solid, but also need to have sealing function, which is convenient for transportation, carrying and storage to meet the requirements. The use purpose is to overcome the disadvantages of the prior art, and to provide a container with good sealing effect and easy to open and close with a rotary vane vacuum pump.

In today's sealed beverage containers, in addition to the cork of red wine wine, the regular screw cap, serrated cap, cork plug and cork silica gel are usually used for drinks. The sealing mud is also applied at the joint between the cork and the bottle mouth to further ensure the sealing.

However, in the actual use process, sealing materials such as sealing mud are directly in contact with the external environment. If the sealing material is accidentally spilled or water, or in humid air, the sealing material may be damaged, deformed, and dissolved, which not only loses the sealing function, but also pollutes the bottle mouth, which is not easy to thoroughly clean. When the user starts to open the bottle plug, it is also in a tight way Sealed containers are likely to contaminate drinks.

The rotary vane vacuum pump can extract the dry gas in the sealed container. If it is attached to the gas ballast device, it can inhale the condensable gas. But it is not suitable for high oxygen extraction, corrosion of metals, chemical reaction of pump oil and dust-containing particulate gas.

Rotary vane vacuum pump is one of the most basic vacuum technology in vacuum equipment. The rotary vane vacuum pump is a multistage pump. Rotary vane vacuum pump and single-stage and two-stage. The so-called two-stage, that is, the structure will connect the two single-stage pumps. Double stage, high vacuum can be obtained.

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