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| Electric Damper Drive (Rotork) |
Damper Operator (Drives) Types :
Damper drives can be one of three types: pneumatic, electric, or electro-hydraulic, as described below.
A very important part of damper design is determination of damper torque and sizing and selection of damper actuator for the maximum torque. Actuator torque should be selected to provide the maximum torque required to operate the damper as well as to provide margin and allow for degradation over the life of the damper. Actuators should be evaluated for damper blade movement in both directions, at the beginning of blade movement, and while stroking blades through the full cycle of movement.
The Goal for Selecting the Best Drive Technology:
Reduced emissions, lower fuel consumption and improved boiler draft control.
Ways to achieve this goal:
- Pneumatic. These damper operators are used whenever controls rely primarily on compressed air (pneumatic) for moving operators.
- Electric. These damper operators are used whenever controls rely primarily electricity as the power source.
- Electro-hydraulic. These damper operators are the same as the electric type described above, but also have a hydraulic system to position the damper.
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| Pneumatic Damper Drive (Rotork Type K) |
The Goal for Selecting the Best Drive Technology:
Reduced emissions, lower fuel consumption and improved boiler draft control.
Ways to achieve this goal:
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| Installed Damper Drive |
- High speed continuous modulation of ID/FD fan and inlet guide vanes
- Improved modulation and control of secondary air dampers
- Improved automation and burner management
- Quick response to plant demand
- Improved reliability in high temperature environments
- Precise damper and burner positioning
- Simple commissioning and diagnostics
- Low running costs, virtually maintenance free
- Pneumatic, analog and bus network communications
For more information, review the document below, or download it at this link on Power Specialties website.
