Gas Pressure Regulator
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| 图 1 | g02156007 |
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(1) 阀
(2) 出口 (3) 操纵杆 (4) 隔膜 (5) 弹簧 (6) 管 (7) 管 (8) 隔膜 (9) 弹簧 (10) 螺栓 (11) 进气 | |
如果出口 (2) 处的压力低于弹簧 (9) 的设置，则弹簧向上推隔膜 (8)。
注: 螺栓 (10) 用于调整弹簧 (9) 的设置（张力）。
当隔膜 (8) 升高，时，来自管 (7) 的燃气先导孔打开。 燃气流经管 (6)，然后对隔膜 (4) 的顶侧施加压力。 压力使隔膜 (4) 下移，移动操纵杆 (3)。 操纵杆的移动打开阀 (1)，以便通过出口 (2) 提供更多的燃气。
当下游供应充足的燃气时，出口压力升高。 该压力施加到隔膜 (8) 的顶部，超过了弹簧 (9) 的设置。 隔膜 (8) 向下移动可关闭通过管 (6) 供压的先导孔。
将隔膜 (4) 顶部的压力通过通道释放到调节器的主油室。 随着隔膜 (4) 顶部的压力降低，弹簧 (5), 向上拉隔膜，导致操纵杆 (3) 向上移动。 操纵杆向上移动可关闭阀 (1)，以便降低通过出口 (2) 的燃气。
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