Automatic welding mechanical device and process for support blocks of suspension tubes of utility boiler

Abstract

The invention relates to an automatic welding mechanical device and process for support blocks of suspension tubes of a utility boiler. The device comprises a pre-welding material frame, wherein a pre-welding rolling path is arranged at the discharging end of the pre-welding material frame; a material stirring device is arranged on one side edge of the pre-welding material frame; a heating system used for heating the to-be-welded parts of the suspension tubes to the required temperature, a welding host used for realizing automatic welding, and a post-welding rolling path are sequentially arranged in front of the pre-welding rolling path from the front to back; a post-welding material frame is positioned on one side edge of the post-welding rolling path; a gear-rack mechanism is arranged on the pre-welding material frame, a gear is driven by a servomotor to run; a pneumatic clamping device is arranged on a rack and used for clamping the rear ends of the suspension tubes falling on the pre-welding material frame; the servomotor device drives the suspension tubes to be fed in a fixed-length manner. Due to the adoption of the automatic welding mechanical device and process provided by the invention, the automatic welding of the support blocks and the suspension tubes is realized, the labor cost is greatly reduced while the labor intensity of workers is reduced, the welding seam quality is ensured, and potential safety hazards during the follow-up operation are reduced.

Description

technical field [0001] The invention relates to a device for automatically welding a support block on a suspension pipe of a power station boiler and a welding process using the device. Background technique [0002] There are a large number of brackets distributed on the suspension pipes of super (ultra) critical boiler superheaters, reheaters, economizers and other components. The suspension pipe is welded to the bracket, which is a typical sealed fillet weld. There are about 200,000 brackets on each 1000MW tower boiler. So far, the welding of brackets and suspension pipes can only be done manually. The quality of the seam is easily affected by human factors, resulting in unstable weld quality, and it is easy to cause a fall-off accident in the power plant, causing a safety hazard. Contents of the invention [0003] The technical problem to be solved by the invention is to realize the automatic welding between the support block and the suspension pipe. [0004] In orde...

AI Technical Summary

Problems solved by technology

There are about 200,000 brackets on each 1000MW tower boiler. So far, the welding of brackets and suspension pipes can only be done manually. The quality of the seam is easily affected by human factors, resulting in unstable weld quality, and prone to falling off accidents in power plants, causing safety hazards

Images