An electrochemical device and test method for simulating the rapid formation of pipe scale

Abstract

The invention, which belongs to the field of electrochemical testing of water supply pipes, provides an electrochemical device for simulating the rapid formation of pipe scale and a test method thereof. The device in an overall circular shape comprises an outer cylinder (1) made of an organic glass material, an inner cylinder (2) made of a polytetrafluoroethylene material, a rotating shaft (3), an organic glass cover plate (4), a motor (5), a working electrode (6), an upper small hole (7) of a cover plate, an auxiliary platinum sheet electrode (8) pasted to the inner wall of a pipeline, a Ag / AgCI(saturated KCl) reference electrode (9) installed in a hole formed in the middle of a platinum sheet, a bottom plate (10), a cylindrical support column (11), a device water inlet (12), and a device water outlet (13). During the experiment process, the motor drives the inner cylinder to make rotation, the material transfer process between a metal hanging piece and a main body is accelerated, and thus the pipe scale formation is promoted. Therefore, a problem of long formation time of the pipe scale of the actual pipeline is solved; and the pipe scales at different growth stages are obtained. A novel device capable of producing the pipe scale rapidly and quantitatively is provided.

Description

technical field [0001] The invention relates to an electrochemical device and a testing method for simulating the rapid formation of pipe scale, belonging to the field of electrochemical testing of metal pipelines. Background technique [0002] During the operation of metal pipes, a large amount of scale will be formed on the metal pipe wall due to chemical and electrochemical effects. When the main water and pipe scale are in a stable state, it will form a barrier to isolate the main water and metal pipes. On the one hand, it reduces the possibility of further corrosion of the pipeline base when the water quality contacts it. On the other hand, it also prevents the pollutants in the scale layer from flowing to Release in bulk water. However, when the water quality or hydraulic conditions in the transported water change, the stable state between water and scale will be destroyed. At this time, the hard shell layer on the surface of the pipe scale will break or dissolve, res...

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide further, through the motor to drive the internal drum to rotate at a high speed, accelerate the material transfer process between the metal hanging piece and the main water, and promote the formation of pipe scale, at the same time, the metal hanging piece on the inner drum is directly used as a working Compared with the small-area working electrode explored by the predecessors, the electrode realizes the method of obtaining a large amount of pipe scale, solves the problem that the actual pipeline takes a long time to form pipe scale and obtains a large amount of pipe scale, and provides a reliable, Novel device and method capable of quantifying the production of pipe scale

Images