![]() The indirect steam humidifier provides tight control of output using a modulating control valve, positioning from closed to open based on demand. The time to satisfy a demand for humidification is slower than the direct steam method because the water must be brought to a boil before it can be used. Having a second source of water increases the concern for impurities in the water and the havoc it can create This increases the need for frequent cleaning. The steam from the boiler is under pressure, while the secondary steam is often under atmospheric pressure. This avoids the concern of using treated steam boiler water and the adverse health effects associated with chemicals being brought into the air stream from the boiler. This separates the steam generated by the steam boiler from the steam that enters the air stream. Unlike the direct method where steam from a boiler is used directly in the air stream, the steam-to-steam humidifier uses a heat exchanger. The steam exits these holes along the tube, injecting steam into the air stream. Inserted in the air stream within the supply duct will be the steam distribution tubes that have perforated holes running along its length. If the facility is existing and already has a steam boiler than this might be the cheapest alternative, depending on where the existing steam pipes are in relationship to where the steam is required. Using a direct steam humidifier reducing the need for maintenance as required with other method of humidification as the steam at 212☏ (100☌) provides a natural method of steam cleaning the components of the humidifier. The steam leaves the humidifier in an all-vapor state where it mixes with the air stream. There will be a separating of the condensate from the steam, directing the steam condensate to the drain outlet. The direct steam humidifier will have the capability to remove dirt and scale particles by straining the incoming steam. Checkout these Humidifiers here Direct Steam Humidifier Design Layout The steam will be delivered from the steam boiler to a manufactured provided direct steam humidifier. Using steam directly from a steam boiler eliminates the need for additional steam generating equipment. Commercial Humidifier Types Direct Steam Humidifiers If you prefer to watch the YouTube Video of this presentation, scroll to the bottom. ![]() Humidifiers can be installed within Air Handlers, ductwork or open areas. ![]() ![]() We’ll explain each of these humidification systems. You can use Steam, Electricity, Gas, Air or Water as the main source of humidification. Humidifiers vary as to the source or energy that provides the final product produced for humidification whether that’s steam or mist. ![]()
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