• 2023-07-29
In the filtering state, turbid water passes through the stack from outside the filter element, and the filter stack is tightly pressed together under the action of spring force and hydraulic force. Impurity particles are trapped at the intersection of the stack, and filtered purified water flows out of the filter.
When a certain pressure difference or time is reached, the system automatically enters a backwash state. The controller controls the valve to change the direction of water flow. The backwash water pressure tightens the spring, causing the lamination to be released. The nozzle located on the filter pillar sprays along the tangent line, causing the lamination to rotate, and flushing out the impurities trapped on the lamination.
The filtration system has two operating states: filtration state and backwash state.

Backwash mode
1. Endogenous cleaning: Use the self pressure of the filtrate to backwash, requiring the filtered water pressure to be greater than 2.8 kg.
2. For external cleaning, use a pump drive for backwashing (either filtered clean water or clean pressure water from other sources), with a pump pressure greater than 3.5 bar and a flow rate of every 15 M3/h.
3. Air assisted backwashing, using 4.5-6bar air to drive the filter fluid for backwashing, with an air flow rate of about 300L/M.
4. Air assisted external backwash, using 4.5-6bar air to drive other sources of cleaning liquid backwash.