Experimental Study, Feedwater Treatment for 1400-Lb Boiler Operating Pressure

Abstract

Abstract Study has shown that the future steam and electrical loads of the Dye Works of the author’s company would he most economically supplied by a 1400-psi boiler-and-turbine installation, exhausting directly into the plant process mains, without the use of evaporators as are now-used at the Deepwater plant of the Deepwater Operating Company. The development of a satisfactory water-purification system to permit 100 per cent treated soft water to be used in a 1400-lb boiler would eliminate the necessity of using Intermediate evaporators with their consequent maintenance and loss of thermal potential. It has been calculated in connection with the study of increased steam and electrical capacity for the Dye Works that the elimination of the evaporators would permit the generation of up to 8000 kw of electricity from the same steam. Additional savings in maintenance would be realized. This paper reviews the various steps undertaken in developing, installing, and operating the experimental water-treatment system, followed later by the installation of a 1400-lb experimental boiler, operating with a heat absorption of 100,000 Btu per sq ft per hr. A 400,000-lb per hr boiler to operate at 1400 psi with 100 per cent treated soft water has been purchased and will start operation in January, 1942.