Principles and testing methods of dynamic and static filtration performance tester of filter materials أداة الاختبار –

The dynamic and static filtration performance tester of filter materials is a device specially used for testing the dynamic and static filtration performance of filter materials. The equipment is tested using the differential pressure method and key performance parameters such as filtration speed, filtration efficiency and particle loss on the plates and frames of the filter material in different Conditions are measured by perfusing the filtrate. Below we will introduce the structure, principle and testing method of the tester in detail. It is mainly composed of motor, pressure gauge, data processor, filter device, water tank, etc. Among them, the filter device consists of a filter material layer, a support layer, a filter plate and a fixed frame. The filter material to be tested can be installed on the mat layerfilter material.

　Testing the dynamic and static filtration performance tester of the filter material Principle:

　 (1)Instrument calibration: When the pressure difference is zero, measure the surface area of ​​the filter media, as well as the density, viscosity and other water parameters.

　(2) Pre-test treatment: Filter the tap water with a 0.22 μm filter membrane and use it as the experimental water.

　(3) Test process: pass the experimental water through the filter device equipped with test filter material, record the pressure difference and flow rate between the inlet and outlet, and calculate the dynamic and dynamic parameters of the filter material based on the data Key indicators of static filtering.

　(4) Data processing: use computers to process test data and usesz different data processing software such as Microsoft Excel for data statistics, analysis, drawings and table output.

Test method of filter material dynamic and static filtration performance tester:

　(1) Select the material filter to be tested, and Carry out sample preparation as needed.

　(2) Install the filter material into the filter device.

　(3) Fill the filter device to ensure that the filter material is completely wet.

　(4) Perform dynamic or static filtration tests through the equipment and record the inlet and outlet pressure difference and flow rate data.

　(5) Calculate and analyze according to the test data to obtain the key performance parameters of the filter material.

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