Surface Combustion
Surface Combustion with Thermal Evaporation
Surface combustion technology solves traditional heat exchanger failures common with other designs.
Two common burner heat exchanger combinations are horizontal tubular double pass and vertical water tube construction. Both are immersed inside an evaporation tank; vertical water tube construction has clearances on the sides and bottom. A third design is a bottom-heated tank, which applies a frying pan approach to heat wastewater for evaporation.
These designs are subject to application-specific conditions that impact the performance and life expectancy of the heat exchanger.
These designs are subject to application-specific conditions that impact the performance and life expectancy of the heat exchanger.
The Wastewater Evaporators design considers the broad spectrum of applications and the harsh conditions that arise from wastewater contaminants. The result is a heat exchanger and burner combination that provides performance, longevity, and low NOX, CO emissions.
The Wastewater Evaporators design utilizes a surface combustion technology in which premixed gas and air burn on a porous medium surface layer.
The Wastewater Evaporators design utilizes a surface combustion technology in which premixed gas and air burn on a porous medium surface layer.
- Surface combustion technology benefits include:
- Extremely low emissions of NOx, CO, and unburned fuel components
- No risk of heat exchanger metal impingement or high heat stress
The Surface Combustion Technology utilized by Wastewater Evaporators design ensures no risk of thermal damage to the heat exchanger. The Wastewater Evaporators design combines Surface Combustion Heat-Exchanger Technology's superior benefits with the high efficiency of the vertical water tube heat exchanger. It incorporates a large heat transfer surface with internal flue gas passages engineered to maximize the combustion media's thermal radiation.
By contrast, the double pass tubular design has flame and combustion gasses drawn by an induced draft blower through the heat exchanger.
This design has sweep elbows, and a 90-degree pipe turns the burner flame contacts. This risks thermal damage to these welded areas compounded with application solids and grime buildup. If solids accumulate on the heat exchanger's flat top oily residues, thermal damage will likely occur.
The top of the heat exchange is sloped to prevent solids from accumulating. The vertical water tubes are easily accessible from the top of the tank for periodic inspection and cleaning. All heat exchangers are not created equal. The Wastewater Evaporators design combines innovation with high quality, thus producing a robust solution to problematic evaporator applications. For more information on product specifications or the surface combustion technology that makes our evaporators unique, contact one of our sales engineers today.
By contrast, the double pass tubular design has flame and combustion gasses drawn by an induced draft blower through the heat exchanger.
This design has sweep elbows, and a 90-degree pipe turns the burner flame contacts. This risks thermal damage to these welded areas compounded with application solids and grime buildup. If solids accumulate on the heat exchanger's flat top oily residues, thermal damage will likely occur.
The top of the heat exchange is sloped to prevent solids from accumulating. The vertical water tubes are easily accessible from the top of the tank for periodic inspection and cleaning. All heat exchangers are not created equal. The Wastewater Evaporators design combines innovation with high quality, thus producing a robust solution to problematic evaporator applications. For more information on product specifications or the surface combustion technology that makes our evaporators unique, contact one of our sales engineers today.
Surface combustion technology eliminates the traditional flame associated with tubular and some vertical water tube designs because the combustion is contained. There is no risk of heat exchanger metal impingement or high heat stresses that will ultimately cause fatigue and failure.
By contrast, our competitors a double pass tubular design has flame and combustion gasses drawn by an induced draft blower through the heat exchanger.
For more information on product specifications or the surface combustion technology that makes our evaporators unique, contact one of our sales engineers today.