For industrial processors that need to heat water and water-based slurries, direct steam injection might be the answer.
Understanding the industrial markets that need to rapidly and
accurately heat water and water-based slurries by injecting steam directly into
the fluid, Kadant Johnson Inc., Three Rivers, Mich., has introduced a direct
steam-injection water heater product line.
Direct injection heaters are used in many processing
applications, including preheating boiler feedwater, pretreatment of fibrous
slurries such as pulp stock, pretreating biomass, paper-starch processing,
sanitization, tank cleaning and anaerobic treatment of organic waste.
"Direct injection heating uses all the sensible and
latent heat of steam to heat the fluid," says Gregory L. Wedel, Kadant's
president. "It can provide equal heating to that of an indirect heat
exchanger process with 20 percent to 30 percent less energy. The improved energy
efficiency results in less steam consumption with no reduction in output. This
new product line complements our existing steam specialty products to maximize
energy efficiency in process industries.”
The units come in sizes 1.5 through 6". With the
exception of the actuator and modulating spindle, the direct injection heater
does not have any moving parts, giving it high reliability and long service
Preheat Fluid Fast with Direct Injection Heater
February 21, 2011