| 摘要 |
<p>481,458. Softening water. CHEMISCHE FABRIK BUDENHEIM AKT.-GES. Jan. 14, 1937, No. 1187. Convention date, Jan. 17, 1936. Addition to 405,368. [Class 46] In apparatus for softening feedwater by the addition of alkali phosphate to the water in a pipe system having windings of bends, as described in the parent Specification, the feed pump 1 is arranged to draw water through the pipe system 2 and filter 3 and nozzles or injectors 5 to which steam is supplied through a pipe 7 are used to supply crude water from a tank 4 and a preliminary treating agent, such as blow-down boiler water, through a pipe 6 to the pipe system. The phosphate solution is supplied to the pipe system from a tank 10 by a pump 11 connected to the feed pump 1. A valve 13 controlling the supply of steam to the pump is operatively connected to a valve 14 in the pipe 6. A valve 9 in the pipe 7 is controlled by a thermostat having a feeler 8 in the pipe system.</p> |
