本文叙述了阀门自动控制装置的工作原理、结构特点以及装置的优点。
In this article, the working mechanism, structure and advantages of the mechanical valve automatic control device were introduced.
手操机构：自动控制在不正常情况下可以手动操作阀门的启闭。
HART institutions: automatic control under normal circumstances you can not manually open and close the valve.
根据调节部位信号，自动控制阀门的开度，从而达到介质流量、压力和液位的调节。
According to regulate parts of the signal, the automatic control of valve opening, so as to achieve medium flow rate, pressure and level of regulation.
在自动控制阀的上游和下游应该安装蝶阀或类似的阀门，以便于进行维护维修。
Butterfly or similar type valves should be installed in the line upstream and downstream of the automatic control valve to allow for maintenance service.
为解决这一问题，今年哈尔滨市将推广使用一种新型远程自动控制阀门。
To solve this problem, this will promote the use of Harbin, a new type of remote automatic control valves.
进口油用电磁阀是指由于各种油品系统、油品储罐以及各种油品管道，用来开关介质油品介质的阀门，可以实现远程自动控制。
Oil solenoid valve is due to various oil system, oil storage tanks and a variety of oil pipelines, oil dielectric medium used to switch the valve can be remote controlled automatically.
亚砷酸车间的生产控制采用仪电一体化设计，所有电气设备、机组和阀门均在DCS上自动控制或远方遥控操作。
The production of arsenic trioxide is controlled by electrics and instrument, with all electrical equipment, units and valves automatically controlled by DCS or remote operation.
KT- 400高真空油扩散泵，它的特点是真空极限高，抽速大，提高生产效率，同时真空气动阀门采用自动控制。
KT-400 high vacuum oil diffusion pump, which is characterized by extreme high vacuum, pumping speed large, increase production efficiency while the vacuum pneumatic valves with automatic control.
实现汽轮机蒸汽阀门的自动控制。包括供油装置、油动机、危急遮断装置。
Realize the automatic control of steam turbine, including oil supply system, hydraulic actuator, and emergency trip unit.
本文对变压吸附氮气发生器的自动控制系统进行设计，通过可编程控制器（PLC）来控制多个阀门以实现工业生产上对氮气的连续，大量需求。
This article carries on the design to the nitrogen generator automatic control system by PSA, it controls valves by PLC to realize in the industrial production have continuous, gen…
弹簧受压差的作用自动控制阀胆上过流面积的大小，从而使通过阀门的流量恒定。
The role of compression springs bad gall on automatic control valve flow area of the size, so that a constant flow through the valve.
提出了变频自动控制在节水灌溉中的应用方案，改变了传统的调整阀门开度及人工启停电机来满足供水需要的操作方法。
The traditional method to adjust the valve opening and to turn on or turn off the pump engine by people to meet the need of water supply was improved.
适用于无源状态和无人控制状态下控制空调系统风道出风窗和各种阀门开或闭的自动控制装置中。
It is applied in the airflowing windows control of the automatic airconditioning systems and the controlling of the adjusting valves in the automatic control systems in a passive and unman state.
适用于无源状态和无人控制状态下控制空调系统风道出风窗和各种阀门开或闭的自动控制装置中。
It is applied in the airflowing windows control of the automatic airconditioning systems and the controlling of the adjusting valves in the automatic control systems in a passive and unman state.
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