Product category:
Machine and production line ancillaries, miscellaneous equipment
News Release from: ABB (Lummus Heat Transfer) | Subject: Helixchanger shell and tube heat exchanger
Edited by the Manufacturingtalk Editorial
Team on 12 September 2002
Heat exchanger has helically baffled
shell
An advanced helically baffled shell and tube heat exchanger is designed for applications where shellside fouling and pressure drops are primary concerns.
ABB Lummus Heat Transfer (LHT) offers the Helixchanger, an advanced helically baffled shell and tube heat exchanger for applications where shellside fouling and pressure drops are primary concerns and also where new expansions or plant upgrades are targeted on lean budgets and limited plot space Conventional shell and tube heat exchangers with segment baffles are often power guzzlers and have to be brought down from service for frequent shellside cleaning to maintain the desired performance
This article was originally published on Manufacturingtalk on 28 May 2007 at 8.00am (UK)
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High operating costs and loss of production during downtimes can add up to many more times the capital costs.
In Helixchanger, the shellside flow configuration offers a very high conversion of pressure drop to heat transfer.
Effective bundle penetration leaves no stagnant areas where fouling may accumulate.
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Quadrant shaped baffle plates in a Helixchanger can be spaced to reduce unsupported tube spans without affecting pressure drop or heat transfer characteristics.
Tube bundles in a Helixchanger are safer against flow-induced vibrations.
Almost 600 Helixchangers are now in service globally in applications ranging from crude preheat trains, feed-effluent exchangers, compressor coolers, quench water coolers and secondary transferline exchangers.
The Helixchanger advantage has been demonstrated by both pilot plant studies as well as by industry feedback on operating units.
A recent scheduled maintenance shutdown at Slovnaft Refinery in Czech Republic showed very little fouling on the shellside of 38 Helixchangers employed in the crude preheat train for over six years.
Several helixchangers were supplied for a residue gasification project at the API refinery in Italy, which have demonstrated performance exceeding specifications.
At a major refinery in California, the client has reported achieving 30 month run length using helixchanger tube bundle in a critical reboiler service whose conventional unit was fouling up every 10 months requiring one hundred percent spare to keep the plant operating.
Feed/effluent exchangers in several plants have reported twice the run length with helixchangers as compared to that achieved with conventional heat exchangers.
Helixchanger can offer an optimum solution for your requirements in many refining processes such as crude preheating, residue processing or conversion, platformer units, feed-effluent heat exchange, distillate hydrocracking, LC fining, gasification or solvent deasphalting services.
Many ethylene and EBSM processes find Helixchanger a cost effective alternative.
Consider the Helixchanger option when you are investigating the following: * Plant upgrade with replacement tube bundles.
* Capacity expansion with limited plot space.
* Reduce fouling problems and frequent downtime.
* Energy survey suggests power savings requirements.
* Debottlenecking an existing process.
* New installations with limited capital budget.
* Improve Plant Run Length * Improve Availability and Reliability of existing plant Please send inquiries to ABB Lummus Heat Transfer in Europe for prompt response with optimum solutions using Helixchangers.
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