| 摘要 |
A dual-connection rubber ball for cleaning and descaling in a heat exchange tube, which belongs to the field of cleaning and descaling in the heat exchange tube includes two solid rotatable bodies, elastic cleaning and descaling fins and an intermediate elastic connecting body, the elastic cleaning and descaling fins are disposed uniformly in the circumferential direction of the two solid rotatable bodies, the intermediate elastic connecting body is connected to the two solid rotatable bodies respectively at it two ends, the thickness of the fin is 0.6-2 mm, the ratio of height to thickness of the fin is 1.25-4, the intermediate elastic connecting body can be formed as a cylinder shaped body, a sheet shaped body or a compound body thereof, the diameter of the cylinder shaped intermediate elastic connecting body is 1/10 to ½ of the inner diameter of the heat exchange tube. The thickness of the sheet shaped intermediate elastic connecting body is 1/25 to⅕of the inner diameter of the heat exchange tube. The difference between the density of the conveyer fluid and the density of the solid rotatable body is not more than 8%. The present invention has the advantages of being effective in cleaning and descaling, less likely to block the heat exchange tube, and having a long service life.
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