A pipeline descaling device

Abstract

The invention discloses a pipeline descaling device. The pipeline descaling device comprises a base, a longitudinal pressing device and a transverse traction device, wherein a lower pressing plate isarranged on the base in a sliding mode, support side plates are arranged on both sides of the base, a top beam is connected to the upper ends of the two support side plates, and an upper pressing plate is arranged between the top beam and the base; the longitudinal pressing device is assembled on the top beam, and the lower end of the longitudinal pressing device is connected to the upper pressingplate; and the transverse traction device is assembled on one support side plate, and the end of the transverse traction device is connected to one end of the lower pressing plate. The pipeline descaling device has the advantages of simple structure, easiness in operation, time saving and labor saving and is difficult to damage by the counter-acting force of extrusion during use; pressure is applied to a pipeline by the longitudinal pressing device, and the pipeline is driven to roll from left to right by the transverse traction device, so that the pipeline is slightly deformed, and a scale layer in the pipeline falls off along with the deformation of the pipeline.

Description

technical field [0001] The invention belongs to the technical field of pipeline descaling in thermal power plants, in particular to a pipeline descaling device. Background technique [0002] Nowadays, the installed capacity of thermal power plants continues to expand, and the operating parameters of the units have also increased significantly. With the continuous increase in the service time of large-capacity and high-parameter units, superheaters and reheaters have caused their tube inner walls to Generate dense magnetic oxide skin. During the overhaul period of the unit, it is necessary to measure the scale amount of the four boiler tubes according to the requirements of the overhaul guideline. The scale amount of the superheater and reheater is often measured by the rolling method: the pipe sample needs to be placed on a bench vise and squeezed to The internal scale layer is peeled off. Since the superheater and reheater of the high-parameter and large-capacity unit are...

AI Technical Summary

Problems solved by technology

Since the superheater and reheater of the high-parameter and large-capacity unit are made of high-pressure alloy steel and austenitic stainless steel, the material is hard and the oxide scale formed is denser. Manual extrusion is too laborious, and the vise is often damaged by the reaction force. Phenomenon

Images