High Pressure Blowers
High-pressure blowers are air blowers that are designed for use in applications where a high-pressure airflow is needed for something.
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Applications of High Pressure Blowers
Artificially high or low pressure airflows are used in all kinds of industrial, commercial, and residential contexts. In homes and small offices, the use of blowers is generally limited to HVAC and maintenance uses, though there are some exceptions (some home-based business may make use of high-pressure blowers for automotive repairs or other light industrial tasks).In general, high pressure blowers are widely used in industrial settings and large-scale commercial settings. Ventilation systems in large buildings require complex systems of blowers and ductwork to ensure adequate air circulation. In industrial settings where harmful or unpleasant gases can build up, effective ventilation systems are especially important. High pressure blowers are also useful in some specialized service industries, such as the carpet and upholstery industries. Additionally, high-pressure floor driers have become a popular means by which to dry newly-cleaned surfaces quickly. Floor driers are also used to dry surfaces after spills.
High Pressure Blower Design and Function
Axial fans and centrifugal blowers come in low, medium, and high pressures, though centrifugal fans can generate much more pressure at the same rotational speed due to their creation of a "churning" perpendicular airflow instead of the linear axial flow. Direct driven blowers compared to belt driven fans should always be able to generate a higher pressure because no power is wasted between the motor and the blower, as there are no intermediary devices. The power is transmitted directly from the motor's drive shaft to the blower without the use of a belt and pulleys, chains, or a gearbox. These high pressure blowers can operate at between 1,000 and 12,000 rpm. In general, centrifugal fans are high pressure blowers, as axial fans are best at moving large amounts of air at a comparatively lower pressure. Axial fans are less expensive to produce and can offer a high rate of airflow, but they optimally function in low-pressure environments, such as cooling systems, clean room aeration, parking garage exhaust ventilation, and grain aeration. The more expensive centrifugal blowers operate at about four times the pressure of axial fans, as seen and felt with blowdryers, inflators, and leaf blowers.