Electrolysis installations and installations of galvanic coatings. Definitions. Composition of installations

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Section 7. Electrical equipment of special installations

Electrolysis installations and installations of galvanic coatings. Definitions. Composition of installations

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Encyclopedia of radio electronics and electrical engineering / Rules for the installation of electrical installations (PUE)

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7.10.3. Plants for electrolysis and galvanic coatings - complexes consisting of one or more baths (respectively, electrolysis - electrolyzers or galvanic) and of the rectifying units required for the implementation of the working process in them (see 7.10.4), other general-purpose electrical equipment and special, complete devices and auxiliary mechanisms, main, inter-bath and other current conductors, cable lines and electrical wiring (including auxiliary circuit wiring: control, alarm, measurement, protection systems), as well as crane and ventilation equipment and gas treatment facilities.

7.10.4. The rectifier unit is a unit operating on the principle of a voltage source (APS), consisting of a converter transformer and semiconductor rectifiers.

Parametric rectifier unit - a unit operating on the principle of a current source (PIT), based on the use of resonant circuits and consists of a converter transformer with separate HV windings, three reactors, three capacitor banks and semiconductor rectifiers.

Semiconductor rectifier - a set of semiconductor valves mounted on a frame or in a cabinet (on frames or in cabinets) with an air or water cooling system.

Converter substation of electrolysis plants - a complex consisting of located inside the premises (or several premises, or inside a separate building) rectifier units (APS or PIT) and the equipment, devices, systems, etc. required for their operation (see 7.10.3), at the same time, converter transformers can be located outside the building (when environmental conditions allow it) in an open space or under a canopy in the design for outdoor installation, and in case of power supply units, also reactors and capacitor banks.

It is allowed to make converting substations in which cabinets (frames) of semiconductor rectifiers are mounted on the walls of the converting transformer tank.

7.10.5. An electrolysis bath or an electrolyzer is a special electrotechnological equipment consisting of a system of positive and negative electrodes immersed in a vessel filled with electrolyte (or placed in membrane or diaphragm type cells assembled into a single block apparatus), designed to perform a combination of electrochemical oxidation-reduction processes at passing an electric current through the electrolyte.

The electroplating bath is structurally similar to the electrolysis bath with an electrolyte in the form of aqueous solutions and differs mainly only in the composition of electrolytes and modes of operation, determined by its purpose - the type of electroplating performed.

A series of electrolysis cells (electrolyzers) is a group of electrically connected electrolysis cells (electrolyzers) connected in series to a converter substation (rectifying unit).

7.10.6. Electrolysis Hall¹⁾ - a production facility that houses single electrolysis baths (electrolyzers), their series, several series or part of a series.

Housing, station or electrolysis shop - an industrial building in which the hall or halls of electrolysis and rooms with equipment necessary for the implementation of the technological process and the implementation of safety and labor protection requirements are located.

1. The terms "electrolysis hall", "station" are not used in aluminum electrolysis installations, in these installations the term "electrolysis building" is used - an industrial building in which a series (part of a series) or series of electrolyzers are installed.

7.10.7. Electroplating shop (section, department) - a room or part of a room with galvanic coating installations and electrical and other equipment necessary to carry out the electrotechnological process, taking into account the requirements of safety and labor protection.

See other articles Section Rules for the installation of electrical installations (PUE).

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