当前位置:首页>新闻中心>常见问题>气动调节阀常见故障及产生的原因

气动调节阀常见故障及产生的原因

来源:http://www.jnlgvf.com/ 日期:2022-05-09 发布人:guanli
a.无信号、无气源:①气源未开。②由于气源含水在冬季结冰,导致风管堵塞或过滤器、减压阀堵塞失灵。③压缩机故障。④气源总管泄漏。
a. No signal and no air source: ① the air source is not turned on. ② Because the water in the air source freezes in winter, the air duct is blocked or the filter and pressure reducing valve are blocked and fail. ③ Compressor failure. ④ Leakage of air supply main pipe.
b.有气源,无信号:①调节器故障。②信号管泄漏。③定位器波纹管漏气。④调节网膜片损坏。
b. Air source, no signal: ① regulator failure. ② The signal tube is leaking. ③ Air leakage of positioner bellows. ④ The adjusting omentum is damaged.
c.定位器无气源:①过滤器堵塞。②减压阀故障。③管道泄漏或堵塞。
c. The positioner has no air source: ① the filter is blocked. ② The pressure reducing valve is faulty. ③ Leakage or blockage of pipes.
d.定位器有气源,无输出:定位器的节流孔堵塞。
d. The positioner has air source and no output: the orifice of the positioner is blocked.
e.有信号、无动作:①阀芯脱落,②阀芯与阀座卡死。③阀杆弯曲或折断。④阀座阀芯冻结或焦块污物。⑤执行机构弹簧因长期不用而锈死。
e. Signal and no action: ① the valve core falls off, and ② the valve core and valve seat are stuck. ③ The valve stem is bent or broken. ④ The valve seat and valve core are frozen or burnt and dirty. ⑤ The actuator spring is rusted due to long-term use.
(2)调节阀的动作不稳定,故障现象和原因如下:
(2) The action of the regulating valve is unstable, and the fault phenomena and causes are as follows:
a.气源压力不稳定:①压缩机容量太小。②减压阀故障。
a. Unstable air source pressure: ① the compressor capacity is too small. ② The pressure reducing valve is faulty.
b.信号压力不稳定:①控制系统的时间常数(T=RC)不适当。②调节器输出不稳定。
b. Unstable signal pressure: ① the time constant (t = RC) of the control system is inappropriate. ② The regulator output is unstable.
c.气源压力稳定,信号压力也稳定,但调节阀的动作仍不稳定:①定位器中放大器的球阀受脏物磨损关不严,耗气量特别大时会产生输出震荡。②定位器中放大器的喷咀挡板不平行,挡板盖不住喷咀。③输出管、线漏气。④执行机构刚性太小。⑤阀杆运动中摩擦阻力大,与相接触部位有阻滞现象。
c. The air source pressure is stable and the signal pressure is also stable, but the action of the regulating valve is still unstable: ① the ball valve of the amplifier in the positioner is not tightly closed due to dirt wear, and the output oscillation will occur when the air consumption is particularly large. ② The nozzle baffle of the amplifier in the positioner is not parallel, and the baffle cannot cover the nozzle. ③ Air leakage of output pipe and line. ④ The rigidity of the actuator is too small. ⑤ The friction resistance of the valve rod is large during the movement, and there is blocking at the contact part.
以上就是为大家介绍的有关良工阀门的详细的介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以的态度,为您提供服务http://www.jnlgvf.com
The above is the detailed introduction of Lianggong valve. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.jnlgvf.com
下一条: 最后一页

热销产品:   核电军工阀门 电力电站阀门 石油化工阀门 水利水务阀门 冶金工业阀门 通用工业阀门 执行驱动装置

上海良工阀门山东济南销售处 网站备案号:鲁ICP备2021030403号-1   技术支持:网站建设·推广运营
电话:15098929951 座机:0531—85816056 地址:济南天桥区历山北路198号国际五金机电城A区412号 

网址:http://www.jnlgvf.com/

【本站图片均由网站所有方提供,部分图片来源于网络,如无意中侵犯了某媒体或个人的知识产权,请来信或来电告之,本网站将立即删除。】