The Turbo Blowers of the EP series are the first variable speed and variable capacity turbo blowers available. They offer a completely water-free vacuum solution with significant heat recovery potential for paper, board and tissue machines.
The Main Benefits:
RunEco Vacuum Systems consists of EP turbo blower, EcoDrop water separator and Ecoflow dewatering measurement. RunEco vacuum system saves 30-70% of energy and 100% of water for your vacuum system. Efficient exhaust side heat recovery systems can also be included in the RunEco concept resulting in improved overall heat recovery output and energy efficiency. Normal payback time for RunEco rebuild is 1-3 years.
Turbo blowers are designed to operate efficiently across a wide range of vacuum levels and air flows. It allows paper mills to optimize vacuum levels whilst taking advantage of the higher efficiency a blower has over a traditional liquid ring pump device. High speed motors, driven by frequency converters, allow a typical turbo blower to provide paper machine vacuum levels between 30 and 70 kPa. A wider range of impeller designs allows highly efficient levels across the operating range. This means that the amount and the usage of throttling valves can be reduced to a minimum. The result is energy savings of 30 to 70% when compared with traditional vacuum systems.
Single and two-stage turbo blowers are of the generic centrifugal compressor type. Air enters a centrifugal fan impeller axially then passes through the impeller radially. Air is collected in the volute casing and discharged at a right angle to the inlet flow. As the impeller rotates, the air contained within the blade passage is forced outwards by centrifugal force. This process produces a continuous flow through the impeller.
Specifically, there are three stages to the pressure development through a centrifugal blower. First, air is forced through the impeller in a radial direction due to the centrifugal force. As the radius of the impeller increases the magnitude of the centrifugal force increases thus creating a pressure gradient i.e. an increase in the static pressure. Secondly, as the outlet area of the blade passage is larger than the inlet area the blade passage acts as a diffuser. The relative velocity decreases as the air flows through the blade passage leading to an additional increase in the static pressure at the impeller outlet. Finally, the motion of the blades adds rotational momentum to the flow increasing the tangential velocity of the air flow. The increase of the absolute velocity towards the end of the blade section in turn, increases the kinetic energy and dynamic pressure across the impeller.
Read more about how Optimize a paper machine with Turbo Blowers
EP650 is a single- or a two-stage vacuum blower equipped with an ABB motor using laminated rotor technology instead of a solid rotor. This results in lower rotor losses and improved load capacity. RunEco EP650 is a variable speed and variable capacity blower designed for large paper machines in both greenfield and retrofit installations.
RunEco EP Turbo Blower facts:
RunEco EP Turbo Blower features:
Paper Machine Vacuum Blower Systems Solutions RunEco
Environmentally friendly and energy efficient, RunEco Vacuum System provides a reliable, completely water free vacuum solution that is ideal for industrial applications.