V18345-2020150001 | 閥門定位器 | SNAT607 MCI | NTAI06

　　型號：V18345-2020150001

　　類別：閥門定位器

　　成色：全新/非全新

　　質(zhì)保：一年

　　快遞：順豐/德邦

　　閥門定位器是一種用于管道系統(tǒng)中的自動化裝置，主要用于對閥門位置進行實時監(jiān)測和控制。以下是關(guān)于閥門定位器的詳細回答：

　　一、定義及作用

　　V18345-2020150001 閥門定位器是調(diào)節(jié)閥的主要附件，它接受調(diào)節(jié)器的輸出信號，然后以它的輸出信號去控制氣動調(diào)節(jié)閥。當調(diào)節(jié)閥動作后，閥桿的位移又通過機械裝置反饋到閥門定位器，閥位狀況通過電信號傳給上位系統(tǒng)。其主要作用包括：

　　實時監(jiān)測和控制閥門位置，確保管道系統(tǒng)的正常運行。

　　增大調(diào)節(jié)閥的輸出功率，減少調(diào)節(jié)信號的傳遞滯后。

　　加快閥桿的移動速度，提高閥門的線性度。

　　克服閥桿的摩擦力并消除不平衡力的影響，保證調(diào)節(jié)閥的正確定位。

　　應用

　　V18345-2020150001 閥門定位器通常與各種類型的閥門一起使用，如球閥、蝶閥、截止閥等。其應用范圍廣泛，包括石油、化工、電力、冶金、環(huán)保等領(lǐng)域。

　　四、作用原理

　　V18345-2020150001閥門定位器通過傳感器測量閥門的位置信息，并將這些信息發(fā)送給控制室。控制室的操作員可以通過控制系統(tǒng)實時監(jiān)測閥門的位置，并對其進行遠程控制。同時，閥門定位器還能根據(jù)調(diào)節(jié)閥工作時閥桿摩擦力等因素，抵消介質(zhì)壓力波動而產(chǎn)生的不平衡力，使閥門開度對應于控制室輸出的信號。

　　Model: V18345-2020150001

　　Category: Valve positioner

　　Finish: New/not new

　　Warranty: One year

　　Express: SF Express/Debon

　　Valve positioner is an automatic device used in pipeline system, which is mainly used for real-time monitoring and control of valve position. The following is a detailed answer about the valve positioner:

　　1. Definition and function

　　V18345-2020150001 Valve positioner is the main accessory of the regulator, it accepts the output signal of the regulator, and then uses its output signal to control the pneumatic regulator. When the regulating valve is operated, the displacement of the valve stem is fed back to the valve positioner through the mechanical device, and the valve position is transmitted to the upper system by electrical signal. Its main functions include:

　　Monitor and control valve position in real time to ensure the normal operation of piping system.

　　Increase the output power of the regulating valve and reduce the transmission lag of the regulating signal.

　　Speed up the movement of the valve stem and improve the linearity of the valve.

　　Overcome the friction of the valve stem and eliminate the influence of unbalanced force to ensure the correct positioning of the regulating valve.

　　Apply

　　V18345-2020150001 Valve positioners are commonly used with various types of valves, such as ball valves, butterfly valves, globe valves, etc. Its application range is wide, including petroleum, chemical industry, electric power, metallurgy, environmental protection and other fields.

　　Fourth, the principle of action

　　The V18345-2020150001 Valve positioner measures valve position information through sensors and sends this information to the control room. The operator in the control room can monitor the position of the valve in real time through the control system and control it remotely. At the same time, the valve positioner can also offset the unbalanced force caused by medium pressure fluctuations according to the valve stem friction and other factors when the regulator works, so that the valve opening corresponds to the output signal of the control room.