Positioning cutting device for accurately cutting heat preservation pipeline sealing plate

Abstract

The invention discloses a positioning cutting device for accurately cutting a heat preservation pipeline sealing plate. The positioning cutting device comprises a first cutting gun, a second cutting gun, a first positioning guide mechanism used for guiding the first cutting gun to move on a working pipe in the circumferential direction and mounting and positioning the first cutting gun, a second positioning guide mechanism used for guiding the second cutting gun to move on the working pipe in the circumferential direction and mounting and positioning the second cutting gun, and a clamping driving mechanism used for driving the first positioning guide mechanism and the second positioning guide mechanism to be mutually clamped on the working pipe, wherein the radius position of the sealing plate cut by the first cutting gun is different from the radius position of the sealing plate cut by the second cutting gun. According to the device, in the sealing plate cutting process, the cutting guns can be accurately positioned, so that it is guaranteed that the structure of the working pipe is not damaged, the service life of the working pipe is prolonged, the cutting precision is high, meanwhile, manual operation can be facilitated, and the working efficiency of cutting the sealing plate is improved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation pipeline equipment, in particular to a positioning cutting device for precisely cutting sealing plates of thermal insulation pipelines. Background technique [0002] In thermal power plants and factories and mines, it is usually necessary to transport steam through insulation pipes. Existing thermal insulation pipes usually consist of a working pipe, an outer casing sleeved on the working pipe, and an insulation layer arranged between the working pipe and the outer casing. Since the insulation material in the insulation layer cannot touch water, The insulation pipe needs to be waterproof during the manufacturing process. At present, the middle insulation layer is sealed mainly by welding ring-shaped sealing plates at both ends of the insulation pipe. [0003] In the process of laying thermal insulation pipes, it is usually necessary to connect multiple thermal insulation pipes to each ...

AI Technical Summary

Problems solved by technology

[0004] In the process of cutting off the sealing tube, manual operation is adopted, and the cutting torch is manually operated, and the inner end and outer end of the sealing plate are respectively cut circularly, so that the sealing plate is separated from the working tube and the outer tube. During the manual cutting process, the cutting The error is large, the cutting accuracy is not high, and it is prone to miscutting, resulting in the part of the working tube being cut off, which cannot guarantee the cutting accuracy, destroys the original structure of the working tube, and causes steam leakage to occur easily during the steam delivery process of the insulation tube, thus Destroying the insulation layer material will cause economic losses. In addition, it is very difficult to check the leakage of the working tube in the later stage, which consumes a lot of manpower and funds, and manual operation is very difficult, and the cutting quality cannot be guaranteed.

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