Heat transfer solutions Thermocompressors
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Additional application opportunity Thermodynamically, the process of recompressing low pressure steam using high pressure steam is similar to a pressure reducing station. It is common that the discharge steam flow from the SJT Steam Jet Thermocompressor contains some superheat. Depending on how the discharge steam will be used, there is an opportunity to use a Spirax Sarco Desuperheater to reduce the outlet superheat. To avoid complications with design and installation, Spirax Sarco recommends that a Desuperheater is installed after the SJT Steam Jet Thermocompressor. Use the Online Calculation Software and the discharge steam conditions shown on the SJT Steam Jet Thermocompressor Datasheet as the inlet conditions to the Desuperheater, and size as normal.
MP steam
Desuperheated MP steam
VTD, STD or SND Desuperheater
HP steam
LP steam
Cooling water
Maintenance Maintenance of an SJT Steam Jet Thermocompressor is simply a matter of fitting a spare nozzle to the unit at certain time intervals, with these intervals depending on the nozzle material used and the steam condition. The material chosen by Spirax Sarco in the manufacture of the steam nozzles for all of their SJT Steam Jet Thermocompressor's have a history of delivering longevity in their application. As nozzle wear is usually a very slow process, it is recommended that nozzle wear be monitored through a planned maintenance programme.
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How to order Example: 1 off Spirax Sarco Size 6 SJT150CS Steam Jet Thermocompressor having ASME 300 RF slip on flange connections. Note: Attach the SJT Datasheet to the order.
TI-P493-02 TES Issue 3
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SJT Steam Jet Thermocompressor
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