Indirect Bath Heaters

Indirect Bath Heaters
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Manufacturer

Description

A process bath heater allows a user to indirectly heat process liquids and gasses by submersing a process coil into a heated bath solution. The bath solution is heated by a fire tube style burner submerged at the bottom of the heater vessel. Water-glycol mixtures are very common solutions for most low temperature heating applications, and can typically be used up to 250F. In some special high temperature applications salt melts can be used to meet the higher operating temperature requirements.

Water Bath and Salt Bath Heaters:

Water bath and salt bath heaters utilize a variety of burner, fire-tube, and coil configurations to meet your specific project demands. Forced draft, small-bore fire-tube burners can be utilized for high efficiency and low NOx requirements, and traditional natural draft burners are available for locations with little or no available electricity.

Coil configurations and metallurgy are selected based on each customer's process requirements. Sigma Thermal has extensive experience in process coil design for multi-phase fluids, viscous hydrocarbons, suspended solids, and various gaseous mixtures.

Weir Bath:

The Weir Bath heater is a slight variation of a traditional water bath heater that does not utilize a process coil. This type of heater is most commonly used as a reboiler for amine and glycol solutions. The bath vessel contains a fire-tube and a weir at the end of the fire-tube. The process fluid is circulated through the bath vessel in direct contact with the fire-tube. After the process fluid is heated, it falls over the weir where the return line sends it back to the process user.