The invention discloses an
ultrafiltration membrane self-cleaning device, which relates to the technical field of water purification; specifically, it includes a filter
cartridge holder, an
ultrafiltration membrane filter cartridge and a
water storage tank, and the inside of the filter
cartridge holder is fixedly installed with multiple groups springs, and a filter cartridge fixture is installed between each group of springs, and the
ultrafiltration membrane filter cartridge is fixedly installed between two adjacent filter cartridge fixtures, and the top of the ultrafiltration
membrane filter cartridge is installed with a
raw water inlet
pipe, And the other end of the
raw water inlet
pipe is equipped with a water inlet three-way
solenoid valve. In the present invention, the
purified water in the
water storage tank is introduced into the ultrafiltration membrane filter cartridge to backwash the ultrafiltration membrane, wherein the
purified water in the
water storage tank contains air bubbles introduced by the
air pump, and the micro bubbles are used to
impact and burst in the ultrafiltration membrane , to effectively improve the cleaning of
dirt and impurities on the surface of the ultrafiltration membrane. At the same time, the ultrafiltration membrane filter cartridge is driven to vibrate during
backwashing, and the vibration is used to speed up the speed of
dirt shedding, thereby improving the efficiency and quality of ultrafiltration membrane cleaning.