Steam storage tank

What is a steam accumulator?

A steam accumulator in the steam system gives increased storage capacity. Proper design of the steam accumulator ensures that any flowrate can be catered for. There are no theoretical limits to the size of a steam accumulator, but of course practical considerations will impose restrictions.

What is an equal pressure storage tank?

In principle, the equal-pressure storage tank is an extension of the steam boiler. Boiling water is channelled from the boiler into the steam accumulator to charge the accumulator. If steam is required again, the equal-pressure storage tank returns the water to the boiler at a slightly lower temperature.

What is a dry steam storage tank?

According to [Goldstern1963], dry steam storage tanks with volumes up to 3000 m 3 have been built for maximum steam pressures of 1.2 bar. To avoid the pressure drop during discharge, the bell accumulator with variable storage volume was developed. Similar to a gasometer used to store low-pressure natural gas, the bell floats on a water reservoir.

Why are steam-heated storage tanks used?

Steam-heated storage tanks are used in order to reduce the viscosities of stored viscous fluids so that they can be pumped as needed. Due to the irregular demand on those products, the heat needs to be supplied continuously to the tanks so that there is constant availability.

How much steam can be stored in a dry storage tank?

For low steam pressures, there is the possibility of direct storage of superheated steam, but the low storage density of steam requires large volumes. According to [Goldstern1963], dry steam storage tanks with volumes up to 3000 m 3 have been built for maximum steam pressures of 1.2 bar.

How does a steam storage tank save energy?

When steam is supplied, it condenses in the water contained in the storage tank, causing the water level to rise and creating excess pressure in the tank. Together with the tank insulation, this contributes to the energy conservation of the heat transfer medium.