|Paper & Pulp||Distillation Columns Bottom Coolers|
|Digester Heaters for Waste Treatment||Fatty Acid Coolers|
|Textile and Laundry Plants||Resin/Plastic Feed Heaters (20,000 Cp)|
|High Temperature & Low Temperature:||High Efficiency & Close Approach:|
|Exhaust Coolers||Heat Recovery and Cogeneration|
|High Temp Gas-to-Gas, (up to 1650°F)||Bottoms to Feed Interchangers|
|Liquid Nitrogen & other Cryogenics||Partial & Knockback Condensers|
Types of Elanco Spiral Heat Exchangers
Spiral in both circuits, removable heads on both sides for clean out. With a Type A, both fluids are in spiral flow and in true counter flow. Used for fouling flows on both sides where cleaning of the prime surface is required. Example: bottoms to feed interchanger.
Similar to Type A, both fluids are in spiral flow, true counter flow. Spiral in both circuits, removable head on one side and all welded on other side. Used when only one of the flows is fouling or when gasketing of one flow is a problem. Example: condensate cooler with river (muddy river water on cleanable side).
Spiral in both circuits, all welded on both sides, and once again both fluids are in spiral flow, true counter flow. Used when the flows are clean, when gasketing is problematic, or when cost must be kept to a minimum. Example: deionized water to tap water.
Spiral/axial circuit for boiling or condensing on one side or both sides. Could have both, one or none of the heads removable for cleaning. The boiling feed enters as liquid to the spiral from the periphery, and boils up axially. Vapors enter the center, condense down and exit the peripheral. With careful design, sub-cooling can be controlled. Example: sludge header with steam, or natural circulation reboiler for distillation.
Spiral on one circuit, axial on the other circuit. The spiral side is all welded, and the axial side flows through the heat exchanger with no spiral action. Used when there is a large difference in flow volume. Example: vacuum cold traps, or air-to-water applications.