Stainless steel filter housings
- The stainless steel filter is composed of a shell, a multi-element filter element, a backwash mechanism, and a differential pressure controller. The inner chamber of the stainless steel filter is divided into upper and lower chambers by a transverse partition inside the shell. The upper chamber is equipped with multiple filter elements, which fully utilizes the filtering space and significantly reduces the volume of the filter. The lower chamber is equipped with a backwash suction cup. During operation, the turbid liquid enters the lower chamber of the filter through the inlet and then enters the inner chamber of the filter element through the partition hole. Impurities larger than the gap of the filter element are intercepted, and the clean liquid passes through the gap to reach the upper chamber, and finally is sent out from the outlet.
operational principle
The filter core adopts a high-strength wedge-shaped filter screen, which automatically cleans the filter element through pressure difference control and timing control. When impurities accumulate on the surface of the filter element, causing the inlet and outlet pressure difference to increase to the set value, or when the timer reaches the preset time, the electric control box sends a signal to drive the backwash mechanism. When the backwash suction cup mouth is aligned with the inlet of the filter element, the drain valve opens, and the system releases pressure and discharges water. A negative pressure zone appears on the inner side of the suction cup and filter element with a relative pressure lower than the water pressure on the outer side of the filter element, forcing some clean circulating water to flow into the inner side of the filter element from the outer side. Impurities and particles adsorbed on the inner wall of the filter element flow into the suction cup with water and are discharged from the drain valve. The specially designed filter screen creates a spraying effect inside the filter element, and any impurities will be washed away from the smooth inner wall. When the pressure difference between the inlet and outlet of the filter returns to normal or the timer setting time ends, the entire process does not cut off the flow of materials, and the backwashing water consumption is low, achieving continuous and automated production. Due to the low concentration of production in the industry, low research and development capabilities for high-end products, and low manufacturing technology level in the stainless steel filter industry, the import and export trade deficit continues to expand. The coming years will be a period of high-speed fluctuations in the stainless steel filter industry, and the direct consequence of this high-speed fluctuation is the widening trend of polarization in the brand camp. There are definitely not so many companies that are expected to truly survive in the market in the coming years. But the high-speed fluctuations in the stainless steel filter industry will bring huge opportunities, and the results of these fluctuations will make market operations more rational. The road to high-end localization is exceptionally bumpy. Basic components have become a shortcoming that restricts the high-end development of China's stainless steel filter manufacturing industry. During the 12th Five Year Plan period, the government will continue to increase the localization of high-end equipment components for stainless steel filters.
Design features
1. The filtration equipment adopts a patented internal mechanical structure, achieving a true high-pressure backwash function. It can easily and thoroughly remove impurities intercepted by the filter, clean without dead corners, and ensure no flux attenuation, ensuring filtration efficiency and long-term service life.
2. The stainless steel filter adopts 304 and 316L stainless steel wedge-shaped filters, which have high strength, accuracy, corrosion resistance, and a maximum filtration accuracy of 25 microns.
3. Stainless steel filters achieve automatic backwashing through their own retrieval and strain functions, which can cope with unstable water quality fluctuations without the need for manual intervention.
4. Stainless steel filters have fewer vulnerable parts, no consumables, low operating and maintenance costs, and simple operation and management.
5. The stainless steel filter operates accurately and can flexibly adjust the backwash pressure difference time and time setting value according to different water sources and filtration accuracy.
6. During the backwashing process of stainless steel filters, each filter screen (group) undergoes backwashing operation in sequence; Ensure that the filter is cleaned safely and efficiently, while other filters are not affected, and continue filtering.
7. The stainless steel filter adopts a pneumatic drain valve, which has a short backwash time, low backwash water consumption, and is environmentally friendly and economical.
8. The stainless steel filter has a compact and reasonable structural design, with a small footprint and flexible and convenient installation and movement.
Advantages of stainless steel filters:
Stable filtering effect;
Deep filtration, outstanding pollution interception ability;
Easy to operate and maintain;
The system has low operating costs, reliable performance, and a lifespan of over 10 years.
The stainless steel laminated type uses stainless steel material to prevent rusting for a long time; The main application industries of the equipment are: chemical, electric power, steel, machinery manufacturing, food and beverage processing, plastics, papermaking, mining, metallurgy, textiles, petrochemicals, environment, golf courses, automobiles, and water front filtration.
technical parameter
4. Filter aperture: 50-1000 μ M
5. Flushing time: About 23 seconds for a single cycle of backwashing
1. Import and export diameter:
In principle, the inlet and outlet diameter of the filter should not be smaller than the inlet diameter of the matching pump, generally consistent with the inlet pipeline diameter.
2. Nominal pressure:
Determine the pressure level of the filter according to the maximum pressure that may occur in the filtering pipeline.
3. Selection of hole size:
The main consideration is the particle size of impurities that need to be intercepted, depending on the process requirements of the medium flow. The particle size that can be intercepted by various specifications of silk screens can be found in the table "Filter Screen Specifications".
4. Filter material:
The material of the filter is generally chosen to be the same as the material of the connected process pipeline. For different service conditions, filters made of cast iron, carbon steel, low alloy steel, or stainless steel can be considered.
5. Calculation of filter resistance loss
The water filter has a pressure loss of 0.52-1.2 kPa at the rated flow rate in general calculation
- Cartridge filter Housing
- Stainless steel precision filter is made of SUS316L or SUS304 all stainless steel. With multiple filter elements as filtration units, it has the advantages of high filtration accuracy, fast filtration speed, no leakage, acid and alkali resistance, corrosion resistance, and convenient cleaning. In order to prevent the suspended particles that are not completely removed or newly generated in the pretreatment from entering the reverse osmosis system, and to protect the high-pressure pump and the reverse osmosis membrane, a filter-type security filter is usually installed before the reverse osmosis water enters. It is an ideal filtration equipment for biomedicine, beer and beverage, chemical, water treatment and other industries.
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