电动阀门用途

Application of electric valves

电动阀:用于液体、气体和风系统管道介质流量的模拟量调节,是AO控制.在大型阀门和风系统的控制中也可以用电动阀做两位开关控制

Electric valve: used for analog regulation of medium flow in liquid, gas, and air system pipelines, it is an AO control. In the control of large valves and air systems, electric valves can also be used as two position switch controls

电动阀门操作注意事项

Precautions for electric valve operation

1)动时,确认离合器手柄在相应位置

1) When moving, confirm that the clutch handle is in the corresponding position

2)如果是在控制室控制电动阀,把转换开关打大REMOTE位置,然后通过SCADA系统控制电动阀的开关

2) If controlling the electric valve in the control room, turn the transfer switch to the REMOTE position and then control the switch of the electric valve through the SCADA system

3)如果手动控制,把转换开关打在LOCAL位置,就地操作电动阀的开关,电动阀开到位或者关到位的时候它会自动停止工作,后把运行转换开关打到中间位置

3) If manually controlled, place the transfer switch in the LOCAL position and operate the switch of the electric valve locally. When the electric valve is opened or closed in place, it will automatically stop working. Then, turn the operation transfer switch to the middle position

4)采用现场操作阀门时,应监视阀门开闭指示和阀杆运行情况,阀门开闭度要符合要求

4) When operating valves on site, the valve opening and closing indication and valve stem operation should be monitored, and the valve opening and closing degree should meet the requirements

5)采用现场操作全关闭阀门时,在阀门关到位前,应停止电动关阀,改用微动将阀门关到位

5) When using on-site operation to fully close the valve, before the valve is fully closed, the electric valve should be stopped and micro action should be used to close the valve in place

6)对行程和超扭矩控制器整定后的阀门,全开或全关阀门时,应注意监视其对行程的控制情况,如阀门开关到位置没有停止的,应立即手动紧急停机

6) When the valve is fully opened or fully closed for the first time after the stroke and overtorque controllers have been set, attention should be paid to monitoring its control over the stroke. If the valve switch is in position and does not stop, manual emergency shutdown should be immediately performed

7)在开、闭阀门过程中,发现信号指示灯指示有误、阀门有异常响声时,应及时停机检查

7) When the signal indicator light is found to be incorrect or the valve has abnormal noise during the process of opening and closing the valve, the machine should be stopped for inspection in a timely manner

8)操作成功后应关闭电动阀门的电源

8) After successful operation, the power supply to the electric valve should be turned off

9)同时操作多个阀门时,应注意操作顺序,并满足生产工艺要求

9) When operating multiple valves simultaneously, attention should be paid to the operation sequence and meet the production process requirements

10)开启有旁通阀门的较大口径阀门时,若两端压差较大,应先打开旁通阀调压,再开主阀:主阀打开后,应立即关闭旁通阀

10) When opening a larger diameter valve with a bypass valve, if the pressure difference between the two ends is large, the bypass valve should be opened first to regulate the pressure, and then the main valve should be opened. After the main valve is opened, the bypass valve should be immediately closed

11)收发清管球(器)时,其经过的球阀必须全开

11) When sending and receiving cleaning balls (devices), the ball valves they pass through must be fully open

12)操作球阀、闸阀、截止阀、蝶阀只能全开或全关,严禁作调节用

12) Ball valves, gate valves, globe valves, and butterfly valves can only be fully opened or fully closed, and are strictly prohibited from being used for adjustment purposes

13)操作闸阀、截止阀和平板阀过程中,当关闭或开启到上死点或下死点时,应回转1/2~1圈

13) During the operation of gate valves, globe valves, and flat valves, when closing or opening to the top or bottom dead center, they should be rotated by 1/2 to 1 turn