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AssigneeHitachi Shipbuilding & Engineering Co., Ltd.
InventorsTakusen Ito, Masami Murakami, Eizo Ishikawa, Keiichi Otsuka
Estimating the term…
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.
In a system for controlling the feed of waste gas to a ground flare comprising a plurality of branch pipes branching from a waste gas conduit and each connected to burners of the ground flare, a valve mounted on each of the branch pipes other than the first branch pipe for opening and closing the branch pipe, and a pressure detector mounted on each of the branch pipes other than the last branch pipe to feed an opening or closing signal to the valve on the following branch pipe, the improvement comprising:
Dependencies are inferred from the claim text.