Evacuating device of tobacco vacuum moisture regain box

Abstract

The invention discloses a tobacco vacuum conditioning oven vacuumizer. The vacuumizer comprises a vacuum conditioning oven, a condenser, a water ring vacuum pump plus a Roots vacuum pump complete set, a vapor-water separation tank, a water circulating pump, a cooling tower and the like, wherein, a horizontal shell-tube heat exchange form is adopted for the condenser, an acid-resistant stainless steel material is adopted for a shell body, a heat exchange tube, a tube plate and a baffle plate, and an acid-resistant stainless steel string is expandedly connected with the heat exchange tube; partof the flow of the condenser and a cooling water circulating system of a Roots pump is cyclically cooled based on that a bypass pipeline passes through the cooling tower; and operating water of the water ring vacuum pump is cyclically cooled in a pipeline which consists of the cooling tower, the vapor-water separation water tank and the water circulating pump. The condenser of the vacuumizer has the advantages of compact structure, small size and high cooling efficiency; and the bypass pipeline usually greatly reduces the investment and the operating cost of a cooling water preparation system, thus greatly improving the operating efficiency of the water ring vacuum pump.

Description

technical field [0001] The invention relates to a tobacco vacuum moisture resurgence box, in particular to a vacuuming device for a tobacco vacuum moisture resurgence box. Background technique [0002] At present, the steam-jet vacuum dampening machine is generally used for tobacco regaining. The equipment uses multi-stage (two-stage, three-stage, four-stage) steam ejectors to eject and extract the gas in the moisture resurgence box, so that a relatively high vacuum environment is generated in the moisture resurgence box (the working pressure is generally required to be lower than 1000Pa). To remove the miscellaneous gas in the cigarette package and make the compressed tobacco leaves fluffy, so as to ensure the moisture regain effect of the tobacco leaves. This equipment needs to consume a large amount of steam, thus causing huge waste of energy. Taking the three-stage steam jet vacuum dampening machine as an example, the pressure of the saturated steam consumed by the ste...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of poor heat transfer effect of the condenser in the above-mentioned technology, large size, complex cooling water preparation system of the condenser, high investment and operation costs and large energy waste, and provide a tobacco The vacuum device of the vacuum resurfacing box achieves the purpose of high heat exchange efficiency and small volume of the condenser; the purpose of simple cooling water preparation system, low investment and low operating cost

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