Tower welding protection device

Abstract

The invention relates to a tower welding protection device which is characterized by comprising a bracket, an arc-shaped supporting frame, a plurality of supporting wheels, supporting wheel carriers, a V-shaped gas protection cover, refractory wool, a plurality of cushion blocks and sealing plates, wherein the arc-shaped supporting frame is arranged on the bracket; the arc-shaped concave surface of the arc-shaped supporting frame faces upwards; the supporting wheels are erected in the arc-shaped concave surface of the arc-shaped supporting frame through the supporting wheel carriers; the V-shaped gas protection cover is arranged on the supporting wheels; the V-shaped concave surface of the V-shaped gas protection cover faces upwards; the two sealing plates are respectively arranged at two ends of the V-shaped gas protection cover; the cushion blocks are laid in the V-shaped concave surface of the V-shaped gas protection cover; a plurality of air holes are formed in each cushion block; a plurality of air grooves are formed in the V-shaped concave surface of the V-shaped gas protection cover; the air grooves are communicated with the air holes; and the refractory wool is spread on the opened end surface of the V-shaped gas protection cover. The tower welding protection device has the advantage that when longitudinal joint welding is conducted on the cylinder of large-sized bearing equipment, such as a tower, a good gas protection effect on a back face is provided.

Description

technical field [0001] The invention relates to a welding protection device, in particular to a tower welding protection device. Background technique [0002] With the continuous development of industrialization, the requirements for towers are getting higher and higher, the structural design is becoming more and more complex, and new materials and advanced manufacturing methods are also constantly being developed. In terms of welding, plasma welding gradually replaces manual and semi-automatic mechanical welding, especially for large pressure equipment such as towers. This kind of large-scale equipment has a large welding workload and is not suitable for manual or semi-automatic mechanical welding. At this time, plasma welding can greatly improve work efficiency and shorten the delivery cycle. [0003] Plasma welding realizes single-sided welding and double-sided molding in the case of large blunt edges, fast welding speed and high efficiency; small welding heat input, sma...

AI Technical Summary

Problems solved by technology

Due to the different structural dimensions of pressure-bearing equipment such as towers, there is no special device for gas protection on the back of plasma welding. In the actual production process, manual lifting is often carried out inside the cylinder, and the advancing speed cannot be consistent with the advancing speed of the welding machine. And the protection is uneven, which often leads to poor protection of the inner surface of the cylinder, so that there are defects such as pores, undercuts, and incomplete penetration inside the weld, which increases the workload of repairs

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