Working principle
When water flows into the entrance, the rough filtering net will filter out larger particles of impurities, it reaches the fine screen. During the process of filtering, fine screen gradually accumulate the dirt and impurities in water, then form a filtration impurity layer, as the impurity layer is stacked on the inside of the fine filtration screen. Therefore there will form a pressure differential between the inside and outer side of the fine screen.
When pressure differential of the filter reaches the preset value, it will start the automatic cleaning, during this process water supplying is constant, clearing valve opens, pressure in cleaning room and suction dirt device drops sharply, under the action of pressure difference between the filter cartridge and the sewage suction pipe, it will generate a suction between sewage suction pipe and the cleaning chamber through nozzle, a sewage suction process is finished. Meanwhile, the electric motor drives the sewage suction pipe to start a helical movement along the axis. The combine of sewage suction device axial motion and rotary motion will completely clean the inside surface of the screen, the flushing process will last 40 seconds to 1 minute. Drain valve will be closed at the end of clean process, filter will prepare next cleaning cycle.
Cleaning system
When the water flows through the filter, impurities will gradually accumulates in the surface of its screen, results in the water pressure difference between the water inlet pipe and outlet pipe. When the differential pressure reaches a preset value 0.05Mp, backwashing starts work. Sucking scanner driven by motor, and do spiral motion around the screen, on the scanner suction by sucking impurity particle movement, through the sewage discharge valve, but does not contact the screen, the cleaning process for 30-60 seconds. According to the requirement of the water quality, suction type (500-30 micron) a variety of filtering accuracy.
Control mode
The filter is equipped with pressure difference switch and integrated controller. When water pressure difference reaches the preset value, the differential pressure switch will start, electric control system enter into the back wash process. The back wash time can be preset by the integrated controller.
Characteristic
1. The equipment structure is compact, sturdy and reliable
2. Back wash water consumption is small, and the required water pressure is low.
3. Filtering has high precision, is suitable for various water quality
4. The pressure drop is small while back wash, does not affect the normal water supply.
| Model |
Pipe dimension(mm) |
Flow rate
(T/H) |
Outfall dimension
(mm) |
Min water pressure(MPa) |
Max water pressure(MPa) |
| YLXS-150S |
150 |
150 |
DN50 |
0.25 |
1.0 |
| YLXS-200S |
200 |
300 |
DN80 |
0.25 |
1.0 |
| YLXS-250S |
250 |
400 |
DN80 |
0.25 |
1.0 |
| YLXS-350S |
350 |
1000 |
DN80 |
0.25 |
1.0 |
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