Electrostatic Precipitator Collecting Electrode
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The "G" Opzel™ collecting electrode incorporates Hamon Research-Cottrell's traditional
Optimum Precipitation Zone ELectrode design, which provides quiescent zones to aide particulate
collection and reduce re-entrainment. Plates are sheet steel roll-formed into panel plates that
are shop welded together into assemblies.
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The plate's structural integrity is fortified by the addition of rolled tube stiffeners at the top
and bottom to make the plate more dynamically responsive to rapping. The mounting pad design is a
hyperbolic transition section, which serves to gradually and efficiently introduce the rapping energy
from the mounting pad into the collecting surface.
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The "G" Opzel™ is constructed with a heavy gauge rolled top stiffener. The stiffener serves both to support
the plate, and to provide a reliable connection to the top end plate. This connection was a failure area
in 1960's vintage "E" Opzel™ collecting electrodes, because the top end plate was attached directly to
the thin gauge collecting plate sheet material. The "G" Opzel™ has only heavy gauge to heavy gauge welded plate
at its support connection virtually eliminating failure/cracking that occurred in earlier designs and the designs
of others.
The "G" Opzel™ has both top and bottom stiffeners to provide straightness from leading to trailing edges.
In addition, vertical straightness is provided by vertical stiffening baffles with overall section width of 4"
(Note that these baffles provide electrical and gas flow quiescence functions as well). All panels of the plate
are welded together to prevent manufacturing or operational twisting of panels off of the collecting plate centerline.
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Another key element contributing to the successful operational record of the "G" Opzel™collecting electrode
is the responsiveness of the plate to rapping. The "G" Opzel™ is constructed from panels which are attached
eccentrically to each other, rather than having one continuous center sheet.
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This eccentric assembly causes the transfer of rapping energy from one panel to another to be perpendicular to the
collecting plate surface. The g-level accelerations normal to the collecting plate surface are greatly enhanced by
this construction. Studies have shown that approximately one half as much rapping energy is required to obtain a
specific acceleration level with the "G" Opzel™, than is required with the continuous sheet designs (Typically
called the E-OPZEL design in the ESP industry). Thus the rapping intensities that the plates are subjected to in
order to obtain adequate cleaning, is greatly reduced. This also contributes to a longer life. To maintain proper
clearances scalloped spacer bars are supplied at the leading and trailing edge of the collecting plates at the
bottom and also in the middle of the plate at the top and bottom.
Whether you are refurbishing your ESP to improve efficiency in the short-term or would like to increase its long-term
performance, our G-Opzel™ plates will prove to be the plate best suited to your system requirements.
| Hamon Research-Cottrell parts |
800 722-7580 |
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