Positioning device between heat exchange tube and tube hole
A technology of positioning device and heat exchange tube, which is applied in auxiliary devices, auxiliary welding equipment, welding/cutting auxiliary equipment, etc. Problems such as low welding quality of tube sheet, to achieve the effect of improving welding quality and welding efficiency, and convenient operation and use
Active Publication Date: 2013-10-16
ZHANGHUAJI SUZHOU HEAVY EQUIP CO LTD
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The invention discloses a positioning device between a heat exchange tube and a tube hole. The positioning device comprises a first positioning tube and a second positioning tube. The outer diameter of the first positioning tube is matched with the diameter of the tube hole in a tube sheet, and the first positioning tube can be sleeved inside the tube hole of the tube sheet in a close fit mode. The outer diameter of the second positioning tube is matched with the inner diameter of the heat exchange tube, and the second positioning tube can be sleeved outside the heat exchange tube in a close fit mode. The axis of the first positioning tube and the axis of the second positioning tube are the same. The first positioning tube and the second positioning tube are fixedly connected through a reduction nipple. The reduction nipple is flush with the outer wall of the first positioning tube and the outer wall of the second positioning tube respectively. The reduction nipple is provided with two welding holes which can conduct spot welding between the tube sheet and the heat exchange tube. The positioning device between the heat exchange tube and the tube hole has the advantages that the structure is simple and practical, operation and use are also very convenient and fast, and the welding quality and the welding efficiency for deep hole welding between the heat exchange tube and the tube sheet are greatly improved.
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