What does the mesh size of a filter depend on?
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During pipeline design, what does the mesh size of the filter relate to? For filters using slurry as the medium, what is an appropriate mesh size?
Of course, it depends on the size of the solid particles that need to be filtered out.
What was said upstairs is correct. It depends on the level of filtration you want to achieve; the number of filter layers needed should be determined based on the size of the particles to be filtered out
What was said upstairs is half correct; filters are generally installed in front of the equipment (such as PUMPS, STEAM TRAPS, PLATE HEAT EXCHANGERS, STRUCTURED PACKINGS, etc.) in order to protect the equipment and ensure smooth operation of the process. Therefore, they should be installed according to the requirements of the equipment. Because sometimes you simply don’t know how large the particles in your fluid are.
This post was last edited and replied to by hongshan0901 on 2011-2-10 at 19:00. Reply 1# zzq13523: It depends on the function of the filter you choose; for example, whether it is used before a pump or before instruments, the mesh size of the filter selected will be different.
Typically, 80 or 60 mesh is chosen; this is determined based on the performance of the pump being used. If the requirements for a regular centrifugal pump are not very high, then 60 mesh can be used, or sometimes no filter at all is needed. The situation is different with shielded pumps; in such cases, it is necessary to use filters with a higher mesh count, such as 80 or 100 mesh, to ensure low inlet resistance
Several factors need to be taken into account when determining the mesh size of a filter: 1. The degree of impurities present in the fluid flowing through the pipeline; if the mesh size is too fine, it will affect the flow rate and cause the filter screen to clog frequently. 2. The level of cleanliness required for the fluid as it passes through the equipment. For example, in the lubrication systems of compressors, a mesh size of over 120 is generally used to protect the equipment. 3. As mentioned earlier, it depends on the desired level of filtration. For the slurry filter referred to by the original poster, a mesh size of 80 is typically used, and that is also the choice we make for our devices; of course, it’s best to carry out calculations first
It must be determined by the size of the contaminants in the medium that you need to filter.
For the oil pipelines we use, a filter precision of 20–30 mesh is selected; for the filters placed before the burners, a precision of 50 mesh is generally used