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Ventilation systems.

Ventilation is an organized air exchange designed to create an environment conducive to human health that meets the requirements of technological processes, the preservation of equipment, materials, products, etc.

Depending on the method of causing air movement, ventilation systems are divided into natural (gravity) and artificial (with mechanical stimulation), on purpose - on the tidal, exhaust and mixed ventilation systems; On the service area of ​​the ventilation system there are local and general-purpose exchanges, and in terms of design, channel and non-channel ventilation systems.Ventilation systems

The design of the ventilation system with natural stimulation is carried out in cases where the normalized parameters of the air environment in the premises can be provided at the expense of gravitational or wind pressure and when the outside air does not require pre-treatment (cleaning, heating, cooling, humidification, etc.). When the appropriate air parameters can not be achieved in this way, design and installation of the mechanical ventilation systems or mixed systems, which uses the appropriate hardware, components, and depending on their constructive execution, and air vents of ventilation systems.

Types of ventilation systems

When the places of harmful emissions (smoke, dust, heat, gases, vapors, etc.) are localized in the room and it can not be allowed to spread throughout the room, local exhaust ventilation is used. In areas with high levels of harmful substances or heat to provide the required air parameters in the workplace, local inflow ventilation is used.

Shared exhaust ventilation systems uniformly remove air from the entire premises, and common-fired tanks - supply and distribute air over the entire volume of the room. If the supplied air is partially mixed with the air removed from the room, then such systems are called supply and recirculation.

There are various controls and automatics to control the parameters of the air supplied to the room (temperature, humidity), its quantity control, protection of the equipment from overheating or defrost. - regulators, frequency converters, various sensors. The state-of-the-art technology allows you to maintain indoor air parameters in a fully automatic mode.

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