That should be the net type filter, in fact, there are many kinds of filters, such as laminated filter, sand filter, carbon filter and so on, the main principle is to use the filter media pore diameter smaller than the media retain material, of course some filter media also has the special effect of adsorption. Most of the filter backwash is not so the trouble, as long as the use of water from the filter outlet end into reverse backwash filter media can achieve very good backwash effect. [edit this paragraph] filter test rig for the above filter test rig, the test before the experiment must strictly on purification system, so the test system and test system for service pollution the injection system is equipped with all the filters, the filter and the filter being tested are two things, it requires the accuracy of dirt capacity requirements than the filter test In order to distinguish the two kinds of filters in the same test system, the filter is called the test bench filter, and the tested filter is called the test filter
4. ray filterTake out some unnecessary lightAccording to installation method:Oil suction filterOil return filterPipe filterDivided according to performance:Pipe filterDouble drum filterHigh pressure filter
Filter cartridge filter overview:The filter is indispensable to a device on the pipe conveying medium, usually installed in the valve, relief valve inlet pressure, water valves or other equipment end, used to remove impurities in the medium, to protect the normal use of valves and equipment. When the fluid enters the filter cartridge has a certain size after the impurities blocked, and clean filtrate from the filter outlet, when cleaning, as long as the removable cartridge is removed, you can reload after treatment, therefore, maintenance is extremely easy to use.According to the filter medium, divided into:1. air filterThe condition that the polluted air is clean to the production and life is to make the air reach a certain degree of cleanliness2. liquid filterTo make the contaminated liquid clean to the desired state of production and life, that is, to make the liquid reach a certain degree of cleanliness3. network filterBlock the spam messages by setting up the information that appears on the computer screen as much as possible. The principle of absorption is to separate the light from different colors
General principles of filter selection:1 、 import and export pass:In principle, the inlet and outlet path of the filter shall not be smaller than the inlet diameter of the matched pump, which is in conformity with the caliber of the inlet pipe2. Nominal pressure:Determine the pressure level of the filter in accordance with the maximum pressure that may occur in the filter line3, the choice of mesh hole:The main consideration is to intercept the impurity particle size, according to the medium flow process requirements. Various sizes of wire mesh can intercept size, check the list "filter specifications"4 filter material:The material of the filter is generally chosen to be the same as that of the connecting process pipe. For different service conditions, the filter of cast iron, carbon steel, low alloy steel or stainless steel can be considered5, filter resistance loss calculationWater filter, under normal rated flow rate, the pressure loss is 0.52 ~ 1.2kpa
