vacuum pump in vacuum humidification

With the application of vacuum pump more and more, what is the function of vacuum pump in different fields? This time, we will learn more about the application of vacuum pump in vacuum air conditioning. Vacuum humidity control: natural fiber (such as silk), man-made fiber, tobacco, paper and other products need to adjust its water content (mainly to increase its water content) to make its water content uniform and constant. Why choose to use vacuum pump in tobacco industry?

First of all, let’s introduce the steps of air conditioning humidification.

Vacuum humidity control steps:

1. Through water vapor;

2. Hot water is injected into the separator;

3. Steam and water are mixed and injected through the separator. The humidity regulation of electric wires is usually carried out after water or steam is injected and vacuum dried and cooled to adjust the humidity evenly and moderately.

At present, in our tobacco industry, water ring vacuum pump is used in tobacco vacuum resurgence. The disadvantage of water ring vacuum pump is that the vacuum degree is low, and the moisture regain cycle is not easy to reciprocate under the appropriate recovery temperature. For example, if the recovery temperature rises, the quality of tobacco leaves will be destroyed.

Later, rotary pump was used to improve the quality of tobacco. The recovery of moisture in the vacuum humidification tank mainly depends on the cigarette case under vacuum condition. After the steam in the cylinder is released, there is a pressure difference between the inside and outside of the cigarette package, and there is a temperature difference between the steam and the tobacco leaf. The higher the vacuum in the cylinder, the steam is released. The greater the pressure inside and outside the cigarette package, the higher the amount of steam entering the cigarette package. The temperature difference between the blades of the steam flue is large, the steam is easy to condense, and the vaporization heat is released, which increases the temperature of the tobacco leaf and the temperature of the cigarette packaging. It is conducive to moisture absorption, so as to achieve rapid and uniform recovery.

Rotary vane vacuum pump performance :

1, high limit vacuum degree, less than 0.5 mbar

2. High pumping speed, easy to use

3. Low working noise, lower than 62 dB

4. Strong steam extraction capacity

5. Environmental protection. The pump is equipped with an oil mist eliminator, which can remove 99.99% of the oil in the exhaust gas

6. Compact structure, scientific and reasonable design, light weight, easy to install in industrial system