Product category:
Valve Hardware (Filters, Flow Controls, Positioners etc)
News Release from: Deublin | Subject: Ecosint rotary siphon
Edited by the Engineeringtalk Editorial
Team on 14 June 2005
Rotary siphon handles problem
applications
Designed to improve condensate draining, Deublin's Ecosint rotary siphon is intended for problem applications with slow speed paper making machines.
Designed to improve condensate draining, Deublin's Ecosint rotary siphon is intended for problem applications with slow speed (below 400m/min) paper making machines In these applications, condensate behaviour inside the rotating dryer can vary between "puddling" and initial rimming conditions
This article was originally published on Engineeringtalk on 29 Jan 2007 at 8.00am (UK)
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This poses problems for conventional siphons and leads to wasted energy, as undrained condensate reduces the efficient transfer of heat from the steam inside the dryer to the external paper layer.
The Ecosint rotary siphon has a large, wide angled scoop, designed to funnel the condensate into the open mouth siphon shoe.
When the condensate in the dryer is in a "puddling" condition at low speeds, the siphon shoe has a very limited time in contact with the condensate and the large scoop allows this time to be as effective as possible.
For cascading condensate conditions, a special design with a condensate trap leg in the piping is available to reduce the amount of steam blow through.
The average energy use per tonne of product is around 16GJ.
With the drying process accounting for some 75% of steam consumption, in both pulp and paper machines, it is more important than ever that steam is used efficiently: in the drying of paper it takes 1.5t of steam to dry 1t of chemical pulp.
As no single system is universally effective, Deublin has developed the most extensive range of steam joints, rotary unions and siphon systems to guarantee maximum performance under different operating conditions.
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