Water treatment device

The utility model provides a water treatment device. The device comprises a raw water tank, a water producing tank and a control cabinet, a raw water pump, a quartz sand filtering tank, an activated carbon filtering tank, an ultrafiltration membrane filter, a high-pressure pump and a reverse osmosis membrane filter are sequentially arranged between the raw water tank and the water producing tank, and the water producing tank is connected with a cleaning tank. The cleaning tank is respectively connected with the reverse osmosis membrane filter, the ultrafiltration membrane filter, the activated carbon filtering tank and the quartz sand filtering tank through flushing pumps, and the water production tank is also connected with a water supply pipeline through a water supply pump; a controller and a frequency converter are arranged in the control cabinet, the raw water pump, the water supply pump and the high-pressure pump are connected with the controller through the frequency converter, water level transmitters