Single-welded mesh tube

The utility model discloses a single-welded mesh tube and aims to provide a single-welded mesh tube which cannot be blocked by impurities attached to the tube wall of the single-welded mesh tube when a liquid required to be filtered flows into the single-welded mesh tube, and can optimize the filtering effect. According to the technical scheme, the single-welded mesh tube is characterized by comprising an input end, an output end and the tube wall, wherein the output end is sealed by a sealing part, the input end is connected with an output part of the tube, a liquid guide part is arranged at the input end, U-shaped through holes are formed in the liquid guide part, two side edges of each through hole are coaxially arranged in an arc shape, and a slope type guide vane is connected with one inner side surface of each through hole and is inclined from the input end to the output end. With adoption of the arrangement, when the liquid required to be filtered flows into the single-welded mesh tube, the effect of larger whirling force can be shown, thus, during filtering, impurities cannot be easily attached to the tube wall due to the fact that certain stirring force can be produced by the liquid required to be filtered in the single-welded mesh tube.