Gas supply apparatus and air or nitrogen supply apparatus of nuclear plant
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United States of America Patent
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Mar 13, 2018
Issued Date -
N/A
app pub date -
Oct 30, 2014
filing date -
Oct 30, 2013
priority date (Note) -
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Abstract
A gas supply apparatus of the present invention includes a gas discharge line of a first electromagnetic valve having s a switching valve placed therein, and a second electromagnetic valve placed between the switching valve and a gas supply source. The switching valve switches between a gas discharge from the first electromagnetic valve and a gas supply to the first electromagnetic valve. At the time of a normal operation, the second electromagnetic valve opens a gas discharge line side and closes a switching valve side, and when the power source is lost, the second electromagnetic valve opens the switching valve side and closes the gas discharge line side. In this way, even when the power source is lost, an operating valve can not only be operated remotely but also be operated safely by a remote operator.
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