Thermocompressor - Import export

Boosting Steam Pressure and Temperature with Thermocompressors Single- or multi-stage Thermocompressors are used to boost low-pressure vent steam to a useful higher pressure and temperature. When high-pressure motive steam is available, Thermocompressors can be economically used for compression ratios up to 6:1 (absolute pressure of supply steam/suction steam). High-pressure motive steam supplied to the Thermocompressor expands in a converging-diverging nozzle to convert pressure energy to kinetic energy. Vent steam supplied to the suction port is entrained into this low-pressure/high-velocity jet, where mixing occurs. The diffuser portion of the Thermocompressor shown in the figure reconverts the kinetic energy of the mixture back into pressure. The intermediate discharge pressure is between the pressures of the motive and low-pressure suction steam.