電動閥門用途

Application of electric valves

電動閥:用于液體、氣體和風系統管道介質流量的模擬量調節,是AO控制.在大型閥門和風系統的控制中也可以用電動閥做兩位開關控制

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

電動閥門操作注意事項

Precautions for electric valve operation

1)動時,確認離合器手柄在相應位置

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

2)如果是在控制室控制電動閥,把轉換開關打大REMOTE位置,然后通過SCADA系統控制電動閥的開關

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)如果手動控制,把轉換開關打在LOCAL位置,就地操作電動閥的開關,電動閥開到位或者關到位的時候它會自動停止工作,后把運行轉換開關打到中間位置

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)采用現場操作閥門時,應監視閥門開閉指示和閥桿運行情況,閥門開閉度要符合要求

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)采用現場操作全關閉閥門時,在閥門關到位前,應停止電動關閥,改用微動將閥門關到位

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)對行程和超扭矩控制器整定后的閥門,全開或全關閥門時,應注意監視其對行程的控制情況,如閥門開關到位置沒有停止的,應立即手動緊急停機

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)在開、閉閥門過程中,發現信號指示燈指示有誤、閥門有異常響聲時,應及時停機檢查

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)操作成功后應關閉電動閥門的電源

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

9)同時操作多個閥門時,應注意操作順序,并滿足生產工藝要求

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

10)開啟有旁通閥門的較大口徑閥門時,若兩端壓差較大,應先打開旁通閥調壓,再開主閥:主閥打開后,應立即關閉旁通閥

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)收發清管球(器)時,其經過的球閥必須全開

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

12)操作球閥、閘閥、截止閥、蝶閥只能全開或全關,嚴禁作調節用

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)操作閘閥、截止閥和平板閥過程中,當關閉或開啟到上死點或下死點時,應回轉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