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Do you know anything about stainless steel filter? So today we mainly introduce to you about the working principle of stainless steel filter and its similarities and differences with other self-cleaning filters, hope that through our introduction, can give you some help. First, the working principle of the backwash stainless steel filter filter is self-cleaning filter by the filter body, filter, one or more (according to the model configuration) flushing valve and Flushing Controller. After the water flow into the filter, first through the coarse screen, and then into the fine filter chamber, by the fine screen will be sewage (small to 2μm) interception down, the water is purified. The dirt collects on the fine filter screen, and the pressure difference is formed between the inner surface and the outer surface of the filter screen. When the pressure drop reaches a preset value (e. g. 0.5 kg/CM2) , the self-cleaning cycle is initiated. The differential pressure sensor sends a signal to the controller to trigger it to open the flush valve so that the pressure in the hydraulic motor chamber, the dirt collector and the suction nozzle is reduced to a level that is accessible to the atmosphere. Causes a pressure difference between the inside (sewage) and outside (water) of the fine filter opposite the suction nozzle, creating a strong suction backwash water to clean the dirt on the filter opposite the suction nozzle, discharge by flush valve. When the backwash water passes through the hydraulic motor, it drives the dirt collector to rotate, so that the suction nozzle absorbs the dirt on the entire filter screen and cleans it. When the filter is cleaned, the controller closes the flush valve and the equipment is automatically restored to the full filter state. The whole flushing process only takes a few seconds, and the system is uninterrupted water supply!
Second, the backwash stainless steel filter and other self-cleaning filter comparison (1) high-performance filter provides 40% more filter area. High-performance filter screen than the ordinary filter more than 40% increase in the effective filtering area. And this structure is very strong, durable, long-term use of mesh pores will not be deformed, with good pressure and chemical corrosion resistance characteristics, no temperature limit. If the effective filtering area is large, the ability of intercepting dirt is improved, the pressure loss is small, and the time interval for flushing is prolonged. (2) flush valve only need to use a single 2” or 1” flush valve. Only with a single 2” or 1” flush valve to meet the cleaning needs, each backwash water than two, three flush valve filter much less. And less parts, less maintenance. (3) there is no fragile plastic part inside. All stainless steel filter has a leading edge, not only can provide stainless steel shell, and internal components including mesh support structure, dirt collector are all stainless steel material, there is no any plastic material. More corrosion-resistant, salt spray, dust, splash and other performance, its rigidity, strength, longer service life, more difficult to damage. (4) adopt advanced electronic controller. The Electronic Controller has advanced technology and is easy to use and reliable. Flushing can be carried out according to manual, differential pressure and timing, and has the functions of liquid crystal display, flushing counting, alarm output and so on. Electronic control is operated by electrical signals, while hydraulic control is operated by the transformation of mechanical energy such as springs and diaphragms, therefore, compared with hydraulic controller, electronic controller is more reliable, more sensitive, more advanced, more functional features, and can directly see the working state of the filter. (5) all stainless steel components, long service life. Carbon steel filters generally use 3-4 years will rust and wear, stainless steel filters can be used for a long time. (6) the grade of high working temperature is 93.3 ° C (200 ° F) and 65.5 ° C (150 ° F) .
Above, we mainly introduce the backwash stainless steel filter from two aspects, mainly from the working principle of the filter and the similarities and differences with other self-cleaning filters, hope that through our introduction, can give you some help. This article is from filter company http://www.huanawl.com.