Control system and apparatus for producing compatible mixtures o

Details Control system and apparatus for producing compatible mixtures o Control system and apparatus for producing compatible mixtures o

1980-02-15

1981-07-07

Kratz, Peter F.

Gas: heating and illuminating

Mixers

48180C, 48180P, 48190, 48191, 48196R, 13710119, F17D 301, C10K 306

Patent

active

042772540

ABSTRACT:
In a fuel gas distribution system, at least one fuel gas stream is mixed with air to achieve a heating value equivalency which is the same as that of another fuel gas having a different heating value and specific gravity. The heating value equivalency is defined as the heating value of a fuel gas in heat units per unit of volume divided by the square root of the specific gravity of the gas. A control system is employed to measure the specific gravity, pressure, temperature and flow rate of the first gas in a first gas stream, and the pressure, temperature and flow rate of air in a second stream, and to control the flow rate of the gas from the first stream and air from the second stream such that the resulting mixture from the two streams has the same heating value equivalency as that of a third gas which was used to adjust the gas burners for use in that system.

REFERENCES:
patent: 2193240 (1940-03-01), Schmidt
patent: 2719080 (1955-09-01), Schmidt et al.
patent: 3119672 (1964-01-01), Pierce
patent: 3206394 (1965-09-01), Kleiss et al.
patent: 3383190 (1968-05-01), Weber et al.
patent: 3419369 (1968-12-01), Kelley
patent: 3433606 (1969-03-01), Moore et al.
patent: 3491585 (1970-01-01), Hass
patent: 3503722 (1970-03-01), Weber et al.
patent: 3582281 (1971-06-01), Fenske et al.
patent: 3999959 (1976-12-01), Bojek

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