The principle of the filter is the use of porous media, from the fluid (liquid or gas) to remove contaminants, the fluid to achieve the required level of cleanliness. Filters are often thought of as simple screens or screens, and filtration or separation is carried out on a surface. This is the way in the past, most of the filter wall is now a certain thickness, that is to say the depth of the filter material, in the form of “curved channel” to remove pollutants played a supporting role.
Filter is to remove a small amount of solid particles in the liquid equipment, when the fluid into the filter has a certain size filter, the impurities are blocked, and clean the filtrate from the filter outlet, when the need to clean, Bottom of the plug, drain the net fluid, remove the flange cover, remove the filter cartridge, re-installed after handling can be. It is well known that the core element of the filter is the filter membrane, which is a film formed on the microporous support layer (support) with a more minute pore. There are many materials to make the filter, divided into organic membrane (such as polysulfone hollow fiber membrane) and inorganic membrane (such as ceramic membrane). Membrane filter filter high precision, particle size control is relatively stable, and easy to restore performance backwash.