The utility model discloses integrated water purification equipment with an automatic
backwashing function, which comprises a
control system, a
backwashing siphon and a filter chamber, the
backwashing siphon comprises an upper
pipe and a lower
pipe, the upper
pipe is sleeved outside the upper section of the lower pipe, the upper end of the upper pipe is provided with a liquid level switch, the lower end of the upper pipe is hermetically connected with the outer wall of the middle part of the lower pipe, and the filter chamber is connected with the
control system. A three-way change-over valve is further arranged at the top of the upper pipe of the backwashing
siphon, three ports of the three-way change-over valve are communicated with the upper end of the backwashing siphon, an output port of the
vacuum pump and the outside respectively, and an input port of the
vacuum pump is communicated with the filter chamber through a water injection
electromagnetic valve; the three-way change-over valve, the
vacuum pump, the water injection
electromagnetic valve and the liquid level switch are electrically connected with the
control system. According to the water purification equipment, the blockage degree of the
filter material layer is judged through the
water level in the backwashing siphon, and when a liquid level switch
signal is switched on, the three-way change-over valve and the vacuum pump are controlled by the control
system to start for forced backwashing, or regular forced backwashing can be set.