Ruths accumulators
In cases of high fluctuations in steam consumptions a Ruths accumulator (or gravity accumulator) downstream from the boiler is beneficial for various reasons. It uses the principle of flash evaporation by blowing steam into a tank filled withcondensate and maintaining the highest possible pressure level = boiler pressure.
Flash evaporation occurs in the tank filled with saturated boiling water and the associated vapour phase when the pressure is reduced by opening a control valve. Sensible operation of this type of device requires a sufficient differential between the charging and discharge pressure/support pressure in the system.
The tank is charged and discharged using a pressure control valve. The accumulator requires a level control which can both feed water or discharge condensate.
RTK offers equipment suitable for this purpose:
For level regulation
- Fill level measurement based on displacer weight measurement
- Level regulator with HW/NW switchgear analogue/digital
- Electric/pneumatic feed control valves for condensate
- Pneumatic drain valves
For charging/discharging steam pressure
- Pressure measurement accumulator pressure and pressure feed steam line
- Process controller for pressure
- Electric/pneumatic control valves
For warm holding
- Accumulator pressure measurement
- Process controller for pressure
- Electric/pneumatic control valves
back to Boiler Construction
go to products