Fully automatic multi-core backwash filter

1、 Product Introduction:

Fully automatic multi-core backwash filterInternally integrated with multiple stainless steel filter elements,filterAfter working for a period of timefilter elementWhen blocked, the backwash arm can backwash the filter elements one by one, restore the filtering ability, and can automatically Continuous online operation without interruption of traffic and no need for manual cleaning.
Unlike ordinary mesh self-cleaning filters,completeThe automatic backwash filter adopts high-strength gap type stainless steel filter elementsOr sintered conical filter elementEasy to backwash clean, when filtering oily sludgeIt has unique advantages in dealing with impurities such as fibrous impurities, soft viscous impurities, and trace fibrous impurities, and can withstand relatively harsh conditions The water quality. Filter accuracy range5-2000 microns, with a large single machine filtration area and high flow rate,

Fully automatic multi-core backwash filterCapable of processing various types of water and low viscosity liquids, such as rolling emulsions By filtering out solid particulate pollutants, the cleanliness of the liquid can meet the requirements of system operation and downstream processes Protect downstream critical equipment, such as preventing nozzle blockage, pump wear, heat exchanger blockage, and delaying scaling, to ensure reliable and efficient operation of critical equipment and significantly extend its service life. filtercanAutomatic online continuous work reduces downtime costs, maintenance costs, and labor costs, making it a good form of automation Dynamic filtering solution.
As a new type of self-cleaning filter, it is designed for harsh working conditions Design, key components such as filter element, reduction motor, differential pressure transmitter, positioning sensor, control system, reverse The flushing valves and other components are made of high-quality components that have been verified for a long time, carefully designed and constructed, with reliable stability.

2、 Working principle:

Liquid flows in from the inlet of the filter, with some liquid flowing directly from the lower end of the filter element Inflow, another part enters the top of the filter from the central diversion pipe, and then Flowing in from the upper end of the filter element, liquid flows in from both the upper and lower openings of the filter element, and passes through The inner surface of the filter element collects and flows out at the outlet. Particle impurities are intercepted on the inner surface of the filter element, accumulating into a filter cake and reaching a certain thickness, and the filtration pressure loss gradually increases High, the filtration flux gradually decreases.

When the set differential pressure or time is reached, start self-cleaning and drive the deceleration motor Align the backwash arm with one or a group of filter elements, and seal the upper end of the filter element with a slider Connect the lower end to the backwash nozzle, open the backwash valve, and remove the filter element Connected to the backwash pipeline, the differential pressure between the outer side of the filter element and the backwash outlet Drive the filtered clean liquid to wash the filter cake on the inner surface of the filter element at high speed in reverse, Discharge from the backwash outlet, and after backwashing is complete, close the backwash valve, The backwash arm then backwashs the next filter element or group. All filter elements are After backwashing one by one, the entire self-cleaning process is completed. The above is a pulse type inverse Rinse process.Filter over 200 microns and continuously rotate the backwash arm to complete backwashing.

[Pulse backwash function]

When filtering with high precision,50～At 175 microns, the filter is equipped with a pulse backwash function. The control system precisely controls the deceleration motor to drive the backwash arm to rotate through a positioning disk. After aligning with one or a group of filter elements, the backwash valve is quickly opened and closed to complete the backwash. Then, the backwash arm is rotated to clean all remaining filter elements one by one or group by group. This function forms a powerful pulse backwash, with the advantages of high backwash intensity and water saving, suitable for high-precision or applications where impurities are difficult to backwash. To achieve rapid valve actuation, pneumatic backwash valves must be selected.

[Optimize backwash performance]

When the filter element is backwashed, the sealing slider has a small hole, and the upper end of the filter element is covered After opening, a small amount of liquid flows into the filter element at high speed through the hole, forming a longitudinal flow Jet flow, based on the Bernoulli effect, forms a local low-pressure region, thereby filtering the filter element The upper part has increased the backwash differential pressure, and the entire filter element has been cleaned more evenly The flushing performance is better.

3、 Technical features and advantages:

■ Automatic continuous online filtering, uninterrupted flow during backwashing, reducing parking and maintenance costs
■ Compact design, single machine ultra large filtration flow, significantly saving installation space and construction costs
Multiple filter housing and element materials are available to meet various cooling water, process water, and seawater filtration needs
Multi core structure, large filtration area, large pollutant holding capacity, low surface flow rate, low pressure loss energy consumption, low backwash frequency, saving backwash water
Adopting V-SLOT high-performance filter element, V-shaped opening, good backwashing effect, suitable for pollutants that are difficult to backwash
High strength filter element, able to withstand high differential pressure, high reliability, with a general service life of more than 10 years
Pulse backwashing, aligning with the filter element and then opening the valve for backwashing, with short time consumption, high backwashing intensity, good effect, and water conservation
Both ends of the filter element are open for water to enter at the same time, and impurities are evenly intercepted on the entire inner surface of the filter element, resulting in high flux and low pressure loss
Highly integrated, no need for a large number of automatic valves, connectors, seals, high reliability, low operating costs
■ Equipped with intelligent differential pressure transmitter as standard, with local digital display, long-term stability and reliability, far superior to ordinary differential pressure switches
The automatic control system has high reliability, intuitive and easy to operate interface, and can control the efficient operation of filters