The electrical heating tube is made of U shaped steel tube, sintered magnesia and heating wire. It is immersed directly in the water for preventing heat loss.
电热管用U型钢管，烧结氧化镁和电热丝制成，直接浸在水里热能损耗少。
2
The experiment result of the sintered metal tube shows that the uneven rate of axial blowing is lower than 10%, and the flow is steady.
烧结金属筒实测结果显示，吹风径向不匀率小于10%，且气流稳定。
3
Because rigid sintered microporous tube have certain wall thickness, and the deepness of pores can also have apparent filtering effect.