A petroleum pipeline welding device

By preheating and uniformly heating the connection point of the oil pipeline, the problem of weld cracks caused by uneven cooling rate at the welding position was solved, thus improving the welding quality.

CN224347130UActive Publication Date: 2026-06-12WUXI HANSHEN ELECTRIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI HANSHEN ELECTRIC
Filing Date
2025-06-27
Publication Date
2026-06-12

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Abstract

This utility model discloses an oil pipeline welding device, relating to the field of oil pipeline processing technology. It includes a heating mechanism and two fixing mechanisms, with the two fixing mechanisms respectively disposed on both sides of the heating mechanism. This utility model uses the two fixing mechanisms to fix two oil pipelines. The heating mechanism is positioned below the joint of the two oil pipelines. When the welding mechanism welds the joint of the oil pipelines from the side or top, the heating module simultaneously heats the joint. Preheating the joint of the two oil pipelines first, and then heating the already welded area, helps to avoid welding cracks, thereby ensuring welding quality.
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