RAISING STEAM

Evening Star, Issue 19639, 19 August 1927, Page 2

RAISING STEAM

Electrode steam generators arc finding increasing use for raising steam, in cases where current is obtainable at reduced rates during the night, according to an exchange. This plant is now usually connected direct to the supply. In an European publication a deserqv tion is given of such equipments for pressure of from 3,000 to 8,000 v.; tho plant in question can ho designed for outputs ranging from 300 to 5,000 k.w., according to tlio pressure. These hightension electrode steam generators, like tho low-tension equipments, are provided with fixed electrodes, the output being regulated by varying the level of water. With this arrangement tlio maximum output corresponds to the highest level of water, so that the surface of electrode in contact with the water and the volume of water have been tho greatest value. The electrodes are separated by insulated bodies arranged in an iron frame fitted in the boiler. They are .secured to tho cover, and can bo removed by raising tho latter.

An equipment of this capaeily lias been in service for some time at one of tho hospitals of the city of Basle; it is designed for 1,200 k.w. at 6,000 v. This plant works iu conjunction with a steam accumulator, with a storage capacity of 2,500 k.w.ii,, which can feed the different parts of the hospital when the electrode boiler is not in operation. Tho hot water which is also required is heated in a separate counter-flow apparatus by means of iho steam generated in the electrode boiler, and stored in large, tanks.