译文:
气动阀动作力距比电动阀门大,气动阀门开关动作速度可以调整,结构简单,易维护,动作过程中因气体本身的缓冲特性,不易因卡住而损坏,但必须有气源,且其控制系统也比电动阀门复杂。
气动阀门响应灵敏,安全可靠,很多对控制要求高的厂专为气动仪表控制元件设置压缩空气站。 电动的就是要电。
电动阀门和气动阀门的本质区别在于使用不同的驱动装置,也就是执行机构,而调节阀本身没有什么区别。
配合不同的执行机构主要是工况要求,如化工等要求防爆的场合,使用最多的是气动阀门,因为安全性要求高,而且价格便宜,配合智能定位器可以上总线,控制方式也简单。
电动阀门执行机构动力源为电源,如果线路板或电机出现故障容易出现火花,所以一般应用在环境要求不高和没有危险的场合。
气动阀门执行机构动力源为气源,气源来源于空压机,采用定位器将电控信号转换成气动控制信号,驱动气动执行机构进行阀位调节。
就气动执行机构和电动执行机构调节性能比较,气动执行机构响应速度更快,能更适合应用在调节工况,所以生产调节阀的厂家都同时生产气动执行机构与之配套。电动执行机构的调节响应速度不够快,以ROTORK为例,调节型执行器每小时调节次数也只有1200次,所以调节阀上配气动执行机构要比电动执行机构应用多。
“ Electric valves and pneumatic valves difference between ”是由提供的国际阀门新闻,译文仅供参考。另外,中国电动阀门网还提供相关产品搜索: 、 、、 、 等。
原文:
Pneumatic Valve for big torque than the electric valve, pneumatic
valve switching movement speed can be adjusted, simple structure,
easy maintenance, action process due to the cushioning properties
of gas itself is not easy to get stuck due to damage, but there
must be gas source, and the its control system is also complicated
than the electric valve. Pneumatic valves to respond to sensitive,
safe and reliable, many control demanding factory control
components designed for pneumatic instrumentation set compressed
air station. Is to electric power. Electric valves and pneumatic
valves essential difference between using a different drive, which
is the executing agency, while the control valve itself is no
different. With the different implementing agencies are mainly
working condition requirements, such as chemical explosion-proof
requirements of the occasion, most frequently used are pneumatic valves, because
of the high security requirements, but also inexpensive, with the
smart positioner can be on the bus, the control method is also
simple . Electric Valve implementing agency source of power for
power, if the circuit board or electrical failure prone to spark,
it is generally less demanding applications in the environment and
no risk of occasions. Pneumatic valve implementing agency the power
source for the gas source, gas source from air compressors, using
positioning devices for motor control signals into pneumatic
control signals to drive pneumatic actuator for valve position
adjustment. On the pneumatic actuator and electric actuator
adjusting performance comparison, the pneumatic actuator to respond
faster and more suitable for use in the regulation of working
conditions, their production control valve
manufacturers are producing pneumatic actuator at the same time a
complete set. Electric implementing agencies to respond fast enough
to adjust to ROTORK, for example, regulator-type actuator adjusting
times per hour, only 1,200 times, so control valve with pneumatic
actuator applications more than the electric actuator.
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