Application Fields of Vacuum Technology
With the development of vacuum acquisition technology, its application has expanded to all aspects of industry and scientific researches.
Generally speaking, the vacuum application means utilizing of the special physical environment of rarefied gas to accomplish some certain tasks such as manufacturing products or equipment ( like light bulbs, tubes, and accelerators), which requires vacuum in use.
However, other tasks (such as vacuum coating, vacuum drying, and vacuum impregnation)only regard vacuum as one step of production and enable the final product to work normally in the atmospheric environment.
The basic concept of filtration is the separation of the suspension by a porous medium. During operation, the driving force of the filtering operation is the pressure difference between the upstream and the downstream of the filter medium. Under the action of the external force, the liquid in the suspension flows out through the pores of the medium, and the solid particles are trapped, thereby achieving separation.