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发明公开
CN106761440A 气凝胶隔热油管 无效 - 撤回

气凝胶隔热油管
摘要：
本发明公开了一种气凝胶隔热油管，包括内管和外管，所述外管套在内管外部并且内管和外管之间形成密闭的隔热环空腔，该隔热环空腔内填充隔热材料。所述隔热材料采用气凝胶。所述隔热环空腔内设置至少一个扶正环。所述内管两端呈喇叭状。所述内管左端焊接在外管的左端内壁，然后内管右端按设计膨胀率加热伸长后焊接在外管的右端。所述隔热环空腔内部抽真空或回充惰性气体。本发明利用气凝胶复合材料作为隔热环空腔，并将隔热环空腔进行真空处理或回充惰性气体，提高其隔热性能。该隔热油管具有隔热等级高、使用寿命长的特点。
摘要（英）：

The invention discloses an aerogel heat insulating oil pipe which comprises an inner pipe and an outer pipe. The inner pipe is sleeved with the outer pipe, and a closed annular heat insulating cavity is formed between the inner pipe and the outer pipe. The annular heat insulating cavity is filled with a heat insulating material, namely aerogel. At least one centering ring is arranged in the annular heat insulating cavity. The two ends of the inner pipe are in a horn shape. The left end of the inner pipe is welded to the inner wall of the left end of the outer pipe, and the right end of the inner pipe is heated and extended according to the designed expansion rate and then welded to the right end of the outer pipe. The annular heat insulating cavity is vacuumized or inflated with inert gas. According to the aerogel heat insulating oil pipe, the aerogel composite material serves as the annular heat insulating cavity, and the annular heat insulating cavity is vacuumized or inflated with the inert gas, so that the heat insulating performance is improved. The heat insulating oil pipe has the characteristics that the heat insulating level is high, and the service life is long.

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