The invention relates to a roller water-entering / returning pipeline
system device for a two-roll calender. The device comprises a roller, a water returning channel, a middle transition channel, a distribution pipeline, a water entering
pipe and a
cooling channel, wherein the water-entering / returning pipeline is designed in the roller; the water-entering / returning pipeline is divided into the water returning channel, the middle transition channel and the distribution pipeline; the
cooling channel is arranged in the roller close to the outer wall of the roller; a water entering
branch and a water draining
branch of the
cooling channel are respectively connected with the distribution pipeline and the water returning channel; the water returning channel is formed between the water entering
pipe and the inner wall of the roller; and the water entering
pipe passes by the water returning channel, penetrates through the middle transition channel, extends into the distribution pipeline and is in sealing connection with a matching joint of the water entering pipe in the middle transition channel and the inner wall of the roller. The roller water-entering / returning pipeline
system device has the advantages of simple and convenient design, flexible conception, high sealing property, high
water pressure in the roller and capabilities of increasing the circulating speed of water in the cooling channel, promoting the
cooling effect, reducing the cleaning and halting time of the device and the fault times of the device and reducing the labor intensity of the operator.