Self cleaning filter installation and commissioning
Sep 11,2018
1. Equipment installation method
1) Connect the inlet and outlet pipes according to the direction of the inlet and outlet pipes, install pressure gauges, and install bypass pipes to facilitate maintenance.
2) Installation of power supply, according to the electrical wiring diagram of the electric control cabinet and equipment on the motor, differential pressure switch, electric valve line connection.
3) Ensure that the transmission part is stable, flexible and clean.
4) No impurities should be piled around the filter to ensure that the filter and control cabinet have good ventilation and should have rain, dust and freeze-proof measures.
5) The filter should be installed in series in the pipeline system to ensure continuous water supply when the filter is stopped for maintenance.
Bypass should be set in the system, filter inlet and outlet and bypass should be set with shutoff ball valve, such as: globe valve, butterfly valve, etc.
6) The selection of filter specifications should follow the principle of flow matching, when the flow of a single filter can not meet the requirements of the pipeline.
Two or more filters can be installed in parallel.
7) The filter should be installed before the water system that the system needs to protect.
8) Where there is a possibility of backflow, check valves should be installed at the outlet of the filter.
2. Electric control installation method
1) Filter control is divided into manual and automatic control, and automatic control is controlled by time and differential pressure. For automatic control, the control terminal adopts the priority principle. That is to say, time and differential pressure first reach the filter and start cleaning procedure.
2) The electronic controller is hung on the filtering device, and the hanging plate of the electronic controller is hung on the hanging nail of the filtering device, which has two directions and can be placed according to the needs.
3) The electronic controller is fixed on the bracket set by the user with two M8 hexagonal head bolts, if the user makes the electronic control box himself
The bracket has two holes with a diameter of 9 150mm.
4) Electrical connection: Insert the aerial plug connecting the cable into the aerial socket of the electronic controller and the electronic box to complete the electromechanical connection.
5) During installation and handling, no electrical control box can be partially flooded.
6) Choose the installation environment reasonably, and pay attention to waterproofing, rain prevention and moisture-proof.
3. Debugging
1) The pressure difference indicator has been adjusted at the time of discharge, and the pressure difference is 0.5Bar. There is an adjustment screw on the upper side of the low-pressure connection end of the differential pressure indicator, which is a pressure adjustment screw. Adjust the screw one turn clockwise (i.e. the screw tightens inward) and increase the pressure difference by 0.1 Bar; adjust the screw one turn counterclockwise (i.e. the screw loosens outward) and reduce the pressure difference by 0.1 Bar. If the current differential pressure is 0.5 Bar, to adjust to 0 Bar, you need to adjust the screw 5 turns counter-clockwise; if the current differential pressure is 0 Bar, you need to adjust the screw 5 turns clockwise; and so on.
2) Calibration of the differential pressure indicator: If you want to calibrate the differential pressure indicator, you can take it off the machine, connect the high-voltage terminal to the booster equipment and the pressure gauge, open the junction box cover, and observe the relay action (keep quiet, when the relay action there is noise). If you want to calibrate 0.5Bar, when the pressure gauge reading is 0.5Bar, rotate the adjusting screw, relay action when the screw position is 0.5Bar pressure difference value of 0.5Bar, the same way to calibrate other values.
3) Slowly and slowly open the intake valve. Make sure that the outlet valve has been installed and opened.
4) Check whether there is any leakage in the filter assembly and its connection.
5) Push the manual/automatic knob to the manual position and press the power button to power up the system, when the power indicator lights up.
6) Push the manual/automatic knob to the manual position and press the forward or reverse buttons respectively to observe the normal discharge in both directions of the manual state. Pay close attention to the location of the proximity components so that they can run normally between SQ1 and SQ2.
8) Use the reverse button to run the suction mechanism near the zero point, as shown in Figure 11. If you use the forward button to adjust the position, the last adjustment must be adjusted with the reverse button, so that the following automatic running state motor forward, to the far point of movement.
9) Confirm that after the manual is normal, turn the knob to the automatic gear.
More inquiries pl contact
KHN water treatment equipments Co., Ltd.
www.khnwatertreatment.com


