System for controlling feed of waste gas to ground flare

Details System for controlling feed of waste gas to ground flare System for controlling feed of waste gas to ground flare

1978-09-15

1980-10-21

Ward, Jr., Robert S.

Combustion

Timer, programmer, retarder or condition responsive control

By condition of burner feed or feed means

431 5, 431 12, 431 61, 431202, F23D 1320

Patent

active

042291577

ABSTRACT:
A conduit for feeding a combustible waste gas to a ground flare is divided into a plurality of branch pipes each connected to burners of the ground flare. A stop valve is mounted on each of the branch pipes except the first pipe and provided with a limit switch for detecting the closing of the valve. A pressure detector is mounted on each of the branch pipes except the last pipe. The valve on each branch pipe opens in response to an opening signal from the pressure detector on the preceding branch pipe and closes in response to both a closing signal from that pressure detector and a signal from the limit switch on the valve on the following branch pipe, whereby the number of branch pipes used for feeding the waste gas is controlled in accordance with variations in the feed of waste gas.

REFERENCES:
patent: 2971605 (1961-02-01), Frost et al.
patent: 3322178 (1967-05-01), Nahas
patent: 3749546 (1973-07-01), Reed et al.
patent: 3779689 (1973-12-01), Reed et al.
patent: 4059385 (1977-11-01), Gulitz et al.
patent: 4065247 (1977-12-01), Okigami et al.
patent: 4087235 (1978-05-01), Ito et al.

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