Turn the manual/automatic selector switch to the manual position, as shown in figure 10. The motor and the hydraulic control valve are connected to the power supply, and the hydraulic control valve is opened to start sewage discharge. The selector switch is rotated to the automatic position to enter the automatic state.
Manual control status is a means to check whether the motor and hydraulic control valve can work normally. It can't work normally in manual control state and it can't work normally in full automatic control state.
(2) Automatic control:
Turn the manual/automatic selector switch to the automatic position, and first set the filter time and blowdown time timer. The lower row of digital tubes of the automatic backwashing filter timer displays the set value, and the upper row of digital tubes displays the timing value.
Timer setting method: press the position selection key once, the first digital tube in the lower row flashes, use the Add key to adjust the value, press the position selection key again after adjustment, the second digital tube flashes, use the Add key to adjust the value, and so on.
Set the time, the digital tube will flash for 8 seconds, and the value will be stored in the memory after 8 seconds, and it will not be lost when the power is off. After adjusting the value, press the start button to start timing. If you turn it off and on again next time, the timer will start automatically and time according to the set time.
Design of characteristic automatic backwashing filter.
◆ The filtering equipment adopts the patented internal mechanical structure, which realizes the real high-pressure backwashing function and can easily and thoroughly remove the impurities trapped by the filter screen. Cleaning has no dead angle, no flow attenuation, ensuring filtration efficiency and long service life.
◆ The filtering equipment adopts 304, 3 16L stainless steel wedge filter screen, which has high strength, high precision and corrosion resistance, and the highest filtering precision can reach 25 microns.
◆ Filtering equipment can realize automatic backwashing through its own retrieval and emergency functions, and can cope with unstable water quality fluctuations without manual intervention.
◆ The filtering equipment has few wearing parts, no consumables, low operation and maintenance cost and simple operation and management.
◆ The control system of filtration equipment is sensitive and accurate, and the backwashing pressure difference time and time setting can be flexibly adjusted according to different water sources and filtration accuracy.
◆ In the backwashing process of filtration equipment, each (group) filter screen shall be backwashed in turn; Ensure that the filter screen is cleaned safely and efficiently, while other filters are not affected, and continue to filter.
◆ The filtering equipment adopts pneumatic blowdown valve, which has the advantages of short backwashing time, less backwashing water consumption, environmental protection and economy.
◆ The filter equipment has compact and reasonable structural design, small floor space and flexible and convenient installation and movement.
◆ The electrical system of filtration equipment adopts integrated control mode, which can realize remote control.
explain
1. Before the system runs, check whether the pipeline is installed correctly.
2. Flush the system piping. At this time, the inlet and outlet valves of the equipment must be closed and the bypass valve must be opened.
3. After the inspection, open the inlet valve and outlet valve, and close the bypass valve and drain valve.