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Chemical washing of a copper order in Minsk
Chemical washing of a copper
Chemical washing of a copper

Chemical washing of a copper

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Belarus, Minsk
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Description

The TEPLOALYANS company offers cleaning of internal surfaces of coppers which needs to be made periodically as inevitable accumulation of corrosion, scale and deposits on an internal surface of a water path of the boiler in the course of its operation leads to considerable falling of working efficiency of a copper and all system connected with a water/steam cycle of a copper.

For this reason there is unstable a heat exchange of system that causes failures of the equipment or damages pipes, and also considerably increases fuel consumption. Therefore the qualified chemical cleaning of a copper will allow not only to prevent malfunctions, but also to reduce costs of its service.

At observance of the regulated water mode, deposits consist generally of iron oxides. In case of its violation or when using low-quality water, at deposits there can be also carbonates, compounds of silicon, copper and phosphates.

Stages of carrying out chemical washing of coppers:
— washing of internal surfaces of a copper with network water;
— alkalizaton of a copper;
— washing of a copper with technical water;
— preparation in a flushing contour and acid solution circulation;
— washing of a copper with technical water;
— neutralization and passivation of internal surfaces of coppers;
— preliminary cleaning of coppers with technical water;
— final washing of surfaces of a copper with network water.

At a zashlamlennost of surfaces of heating of a copper more than 1500 g/m ² and/or at contents in deposits more than 10% of silicon acid and/or sulfates, are recommended to carry out chemical cleaning of a copper to two stages with intermediate alkalizaton before processing with acid or between acid stages.

In the presence of deposits with a density more than 3000 - 4000 g/m ² cleaning of surfaces of a copper can demand consecutive alternation of several acid and alkaline processings.

In certain cases expediently before carrying out acid washing of a copper to execute mechanical (hydrodynamic) washing of the polluted copper surfaces.

It is necessary to organize periodic chemical control over separate operations: measurement of concentration of acid and Ph value, content of iron, and also concentration of a caustic natr or the calcinated soda (at alkalizaton of a copper).

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