Antiseptic operation system of hot bending bent pipe and operation method thereof

Abstract

The invention discloses an antiseptic operation system of a hot bending bent pipe and an operation method thereof. The antiseptic operation system of the hot bending bent pipe comprises a rotary cantilever which comprises a rotary beam and an arc-shaped cantilever, wherein the rotary beam rotates along a revolving axle, and the arc-shaped cantilever is arranged on the rotary beam; one end of the rotary beam is installed on the revolving axle, and the other end of the rotary beam is supported on an arc-shaped rail; the hot bending bent pipe is fixedly arranged on the arc-shaped cantilever; a medium-frequency heating device, a powder spraying device, a winding device and a cooling device are arranged along the movement locus of the arc-shaped cantilever; and the hot bending bent pipe is successively matched with the medium-frequency heating device, the powder spraying device, the winding device and the cooling device. The invention can simplify the antiseptic drive lines of three layers of PE of the hot bending bent pipe, can quickly improve the operation time of the antiseptic production of the three layers of the PE of the hot bending bent pipe, improves the efficiency of mechanical antiseptic production of the three layers of the PE of the hot bending bent pipe and realizes the mechanical high-efficiency antiseptic production of the three layers of the PE of the hot bending bent pipe.

Description

technical field [0001] The invention relates to a surface anti-corrosion treatment process and a treatment device for metal materials, in particular to a hot-bent pipe anti-corrosion operation system and an operation method thereof. Background technique [0002] At present, the three-layer PE anti-corrosion operation line and process technology of the straight pipe section of domestic oil and gas steel pipelines are relatively mature, and the external anti-corrosion of hot-bent pipes is currently mostly made of heat-shrinkable sleeves or double-epoxy powder anti-corrosion. An anti-corrosion production line using a ring-shaped production line for three-layer PE mechanized operations already exists in the prior art. For example, Chinese Patent No. "200510048358.2" discloses a three-layer PE cold belt winding hot-melt anti-corrosion process for steel pipes and elbows. Its application date is December 31, 2005, and its publication date is August 2, 2006. It is carried out accord...

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Problems solved by technology

[0003] In practical application, it is found that the above-mentioned process and its equipment still have the following problems: 1. The three-layer PE anti-corrosion transmission line of the hot-bent pipe is too long, which leads to an increase in the production time of the three-layer PE anti-corrosion production operation of the hot-bend pipe

2. The efficiency of three-layer PE anti-corrosion production of hot-bent pipes is low, and the degree of mechanization is low, which cannot meet the requirements of large-scale three-layer PE anti-corrosion production of hot-bend pipes

3. Low production speed, serious waste of raw materials, low anti-corrosion quality and difficult to control, that is, the efficiency of mass production is low

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