Non-welding fixing equipment for low-pressure pipeline small-pore-diameter bore-opening machine

Abstract

The invention relates to the technical field of pipeline pressured pore opening, in particular to non-welding fixing equipment for a low-pressure pipeline small-pore-diameter bore-opening machine. Thenon-welding fixing equipment comprises a short section device and an embracing device which is used for detachably fixing the short section device to a to-be-pored pipeline or the outer surface of apipeline part of a to-be-pored valve. The short section device comprises a tubular seat body, a body fixedly arranged on the seat body and a tube body fixedly arranged on the body, wherein a channel which is through up and down is arranged on the seat body; and the seat body communicates with the tube body through the channel. The embracing device comprises a downwards bent arc-shaped lower embracing ring, an arc-shaped left upper embracing ring which is bent towards the left upper side and an arc-shaped right upper embracing ring which is bent towards the right upper side. The non-welding fixing equipment can be used for replacing a leaking grease injecting nozzle under pressure online and replacing a ball passing indicator without stopping conveying a great deal of discharging natural gas resources as well as detecting pipeline sweeping replacing pore-opening detection and the like, is simple to operate, and is safe and reliable.

Description

technical field [0001] The invention relates to the technical field of pressure drilling of pipelines, and in particular relates to a small-diameter drilling machine for medium and low pressure pipelines without welding and fixing equipment. Background technique [0002] T101B hole drilling machine is a common tool for drilling pipes under pressure. In addition to drilling operations, it can also be used for ball indicator replacement, grease nozzle replacement and other operations. When the drilling machine is used, the connection between the drilling machine and the pipeline, or the auxiliary equipment and facilities of the pipeline is a key point. The traditional connection method is to weld a threaded pup joint at the position to be drilled, because this method requires fire, so a On the one hand, the safety is not high, and on the other hand, it is not suitable for the parts where there is a small amount of leakage, and the scope of application is small. As far as the ...

AI Technical Summary

Problems solved by technology

When the drilling machine is used, the connection between the drilling machine and the pipeline, or the auxiliary equipment and facilities of the pipeline is a key point. The traditional connection method is to weld a threaded pup joint at the position to be drilled, because this method requires fire, so a On the one hand, the safety is not high, on the other hand, it is not suitable for parts with small leakage, and the scope of application is small

As far as the fixing device of the drilling machine is concerned, there is currently no relevant technical solution disclosed

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