电话

Free consultation hotline:

搜索
Search
News Center

阀门定位器在调节阀控制中起何作用?

(Summary description)阀门定位器,按结构分气动阀门定位器、电-气阀门定位器及智能阀门定位器,是调节阀的主要附件,通常与气动调节阀配套使用,它接受调节器的输出信号,然后以它的输出信号去控制气动调节阀,当调节阀动作后,阀杆的位移又通过机械装置反馈到阀门定位器。

阀门定位器在调节阀控制中起何作用?

(Summary description)阀门定位器,按结构分气动阀门定位器、电-气阀门定位器及智能阀门定位器,是调节阀的主要附件,通常与气动调节阀配套使用,它接受调节器的输出信号,然后以它的输出信号去控制气动调节阀,当调节阀动作后,阀杆的位移又通过机械装置反馈到阀门定位器。

Information
  阀门定位器,按结构分气动阀门定位器、电-气阀门定位器及智能阀门定位器,是调节阀的主要附件,通常与气动调节阀配套使用,它接受调节器的输出信号,然后以它的输出信号去控制气动调节阀,当调节阀动作后,阀杆的位移又通过机械装置反馈到阀门定位器。
  阀门定位器在调节阀控制中的具体作用如下:
  1、用于对调节质量要求高的重要调节系统,以提高调节阀的定位精确及可靠性。
  2、用于阀门两端压差大(△p>1MPa)的场合。通过提高气源压力增大执行机构的输出力,以克服流体对阀芯产生的不平衡力,减小行程误差。
  3、当被调介质为高温、高压、低温、有毒、易燃、易爆时,为了防止对外泄漏,往往将填料压得很紧,因此阀杆与填料间的摩擦力较大,此时用定位器可克服时滞。
  4、被调介质为粘性流体可含有固体悬浮物时,用定位器可以克服介质对阀杆移动的阻力。
  5、用大口径(Dg>100mm)的调节阀,以增大执行机构的输出推力。
  6、当调节器与执行器距离在60m以上时,用定位器可克服控制信号的传递滞后,改善阀门的动作反应速度。
  7、用来改善调节阀的流量特性。
  8、一个调节器控制两个执行器实行分程控制时,可用两个定位器,分别接受低输入信号和高输入信号,则一个执行器低程动作,另一个高程动作,即构成了分程调节。

Scan the QR code to read on your phone

The

The working principle of valve positioner

Under the advancement of technology, we have developed a valve positioner to control the equipment in order to work more accurately. The valve positioner can be used in conjunction with various equipment. Using the valve positioner, we can understand a signal of the adjustment output in the equipment, so as to realize the control of the equipment. Although the use of valve positioners is very common in our lives, many people do not know much about the structure and working principle of valve positioners. Let's take a look at the working principle of the valve positioner together.
2020-01-19
Leaders

Leaders and technical experts from China National Offshore Oil Corporation visited Wuhan Tuoyou Intelligent Co., Ltd

On October 10th, leaders and technical experts from China National Offshore Oil Corporation (hereinafter referred to as CNOOC) visited Wuhan Tuoyou Intelligent Co., Ltd. to conduct research and technical exchanges on the application of TORLEO intelligent valve positioner in offshore operation platform.
2023-10-27

CONTACT INFORMATION

Address: Room 501, Building 9, Optics Valley Power Green Environmental Protection Industrial Park, No. 308, Optics Valley Avenue, Donghu High-tech Zone, Wuhan City, Hubei Province

Phone:(86-27)8738-3559   Free hotline:400-878-5856

Business hotline:1896395699513707140294
Technical hotline:13628621551

Business email:torleo@qq.com
Company email:1879823610@qq.com

OFFICIAL ACCOUNTS

Welcome to follow our official public account

公众号二维码

ONLINE MESSAGE

Username used for comment:
客户留言
Description:
验证码

 Copyright © 2021  Wuhan Torleo Intelligent Co., Ltd.    鄂ICP备13017853号-1   Powered by : www.300.cn