快速卸荷阀的工作原理
2010-08-31 09:48阅读:
原文:
快速卸荷阀的工作原理
它的上部接有一个杯装滑阀、滑阀的下部腔室与油动机活塞下部的高压油路相通、并受到高压油的作用,在杯装滑阀的底部中间有一小孔、
疏水阀使少量的压力油通到滑阀上部的油室、该油室有两路,一路经过逆止阀与危急遮断油路相通,
蝶阀正常运行时由于遮断油总管上的油压等于高压油的油压它顶着逆止阀并使之关闭,滑阀上部的压力油不能从此路泄去、另一油路是通经针形阀控制的缩孔、
眼镜阀控制通到油动机活塞上腔的油的通道、调节针形阀的开度可以调整滑阀上的油压、以供调试整定之用。正常运行时滑阀上部的油压作用力加上弹簧的作用力大于滑阀下部高加油的作用力,使杯装滑阀压在底座上、
调节阀连接回油油路油口被关闭、当汽轮机故障电磁阀动作,遮断油总管失压、作用在杯形滑阀上的压力油顶开逆止阀并泄油、使该阀上部的油压急剧下降、下部的高压油推动滑阀上移,
过滤器滑阀套筒上部的泄油口被打开、从而使油动机内的高压油失压,并在弹簧力的作用下,迅速下降,关闭主汽门,使机组停机。
“Fast unloading valve works ”是由
中国安全阀网提供的国际阀门新闻,译文仅供参考。另外,中国安全阀网还提供相关产品搜索:
弹簧式安全阀、
脉冲式安全阀(先导式安全阀)
、
杠杆式安全阀、
微启式安全阀、
全启式安全阀等。
译文:
Fast unloading valve works Its top pick to have a glass slide
valve, slide valve of the lower chamber and the lower part of the
oil motivated the high pressure piston connected, and by the role
of high-pressure oil, glass slide valve in the bottom of the middle
of a small hole so little pressure oil to the slide valve through
the upper oil chamber, the oil chamber with two-way, all the way
through the check valve connected with the Emergency Trip
asphalt,
Hydraulic
control valves normal running Explorer on the trip oil as
hydraulic oil pressure is equal to it withstand high-pressure oil
Check valve and make it close, the pressure of the upper slide
valve oil
Forged
Steel Valves can not be drained from this road, pass through
another oil line is the needle valve control shrinkage,
control
Cast
Steel of oil through the piston chamber of the oil motivated
the channel, adjust pin shaped valve opening can be adjusted on the
hydraulic spool valve to be used for debugging setting. Upper
normal operation the hydraulic spool valve spring force plus
Other pumpsthe
force is greater than the lower part of the high fuel slide valve
the force, so that glass slide valve pressure on the base, connect
back to oily road oil port was closed, when the steam turbine fault
valve action, trip oil pressure mains failure, the role of the
cup-shaped slide valve on top to open
Water
Control valves the oil pressure check valve and drain so that
the upper part of the hydraulic valve sharp decline in the lower
part of the high pressure oil to promote the slide valve on the
move, slide valve sleeve upper drain port is opened, allowing high
pressure oil within the oil motive pressure loss and the role of
the spring force, the rapid decline, close the main valve, so that
unit down.
原文来源:
http://www.1anquanfa.com/