The invention belongs to the field of
rotational flow filtering devices, and discloses a
rotational flow filtering device and
system, wherein the
rotational flow filtering device comprises a cylinderbody, a
filter element, a movable pup joint, an upper end cover and a lower end cover; one end of the cylinder body is connected with the upper end cover, and the other end is connected with the lowerend cover through the movable pup joint; the
filter element is arranged in the cylinder body, and two ends of the
filter element are connected with the cylinder body through tube plates; an air inletand a
clear liquid opening are formed in the upper end cover, an air
inlet valve is arranged on the air inlet, a liquid inlet is formed in the cylinder body, a liquid
inlet valve is arranged on the liquid inlet, and the liquid inlet is formed in the tangential direction of the cylinder body; a
slag discharging opening is formed in the lower end cover, and a
slag discharging valve is arranged on the
slag discharging opening. The rotational flow filtering
system comprises a
clear liquid pipeline, a deslagging pipeline, a circulating liquid pipeline, a liquid inlet pipeline, a
compressed air pipeline, a skid-mounted base and a plurality of rotational flow filtering devices. The rapid purification effect of rotational flow
precipitation debris and membrane
filtration is realized; by adoptingthe design of the movable pup joint, the disassembly, the inspection and the maintenance of the device are facilitated, and the single rotational flow filtering device is of a skid-mounted structure,so that the occupied area of the device is small, and the efficiency of the device is high.