Automatic boiler blowdown system including blowdown sequence con

Details Automatic boiler blowdown system including blowdown sequence con Automatic boiler blowdown system including blowdown sequence con

1983-03-07

1984-08-14

Yuen, Henry C.

Liquid heaters and vaporizers

Cleaning

Blow off

122396, 122451R, F22B 3754

Patent

active

044650264

ABSTRACT:
A blowdown system for controlling blowdown of a boiler such that the level of dissolved solids in the boiler is carefully controlled. The system includes a blowdown tank connected to the bottom of a boiler. Controls are provided for causing blowdown when the content of dissolved solids in the boiler water reaches a first level. Surface blowdown is caused when the dissolved solids reach a second level and a controlled or modulated increase in surface blowdown can then be provided so as to cause surface blowdown proportional to the level of dissolved solids in the boiler water. Blowdown can also be provided through alternate water columns.

REFERENCES:
patent: 2385161 (1945-09-01), Pinkerton
patent: 2733693 (1956-02-01), Johnsson
patent: 3377994 (1968-04-01), Horne
patent: 3680581 (1972-08-01), Holdt
patent: 4285302 (1981-08-01), Kelly

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