Cooling method for anti-corrosion steel pipe manufacturing and cooling device

Abstract

The invention provides a cooling method for anti-corrosion steel pipe manufacturing, and a cooling device. The cooling method for anti-corrosion steel pipe manufacturing includes the steps that after the first pipe end of a steel pipe advances in a spiral manner to enter a cooling area from a corrosion prevention operating area, a cooling spray nozzle moves to a cooling work position in the steel pipe and keeps still, the steel pipe continues to advance in the spiral manner, and the inner wall of the steel pipe is continuously cooled through cooling water; when the second pipe end of the steel pipe advances to the position of the cooling spray nozzle, the cooling spray nozzle moves out of the steel pipe and arrives at a work waiting position, and meanwhile separation between the steel pipe and a next steel pipe is accelerated; a pipe pulling device pulls the steel pipe where internal cooling has been completed to the next procedure; and the steps are repeatedly executed, the cooling spray nozzle moves to the cooling work position to cool the inner portion of the next steel pipe. The cooling device for achieving the cooling method comprises a transmission device, an internal cooling device, the pipe pulling device and a control system. By means of the cooling method and the cooling device, the anti-corrosion quality and the cooling efficiency of the steel pipes are improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of anticorrosion steel pipe manufacture, and relates to a cooling method and cooling equipment for anticorrosion steel pipe manufacture. Background technique [0002] The anti-corrosion steel pipe production line includes four main functional areas: pretreatment area, anti-corrosion operation area, cooling area and post-processing area. The cooling area is set next to the anti-corrosion operation area to cool the high-temperature anti-corrosion steel pipes connected end to end from the anti-corrosion operation area. [0003] The current anti-corrosion steel pipe production line mainly adopts external cooling method to cool the anti-corrosion layer and steel pipe. The outer layer of anti-corrosion layer is cooled first, and the inner layer of steel pipe is cooled later. If there are multiple layers of anti-corrosion layers, it is also cooled layer by layer from the outer layer to the inner layer. Due to the slow heat t...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to solve the problems of anti-corrosion quality defect and cost increase existing in the existing anti-corrosion steel pipe cooling method, and provide a kind of anti-corrosion quality improvement, cooling efficiency improvement, cost reduction, which can be used in the transformation of existing production lines and is relatively easy to realize. Anti-corrosion steel pipe internal cooling method and cooling equipment

Images