天蝶閥門帶您認識電動執行器的發展歷史及閥門電動裝置的組成

現如今電動執行器和閥門電動裝置已被廣泛作用于各行各業，那么電動執行器的發展歷史是怎樣的呢？天蝶閥門小編帶您來了解一下吧！

簡述電動執行器及閥門電動裝置的組成

The development history of valve electric device and the composition of valve electric device are briefly introduced

自1929年LIMITORQUE制造出了世界上臺閥門電動裝置以來，電動執行器獲得了較快的發展．國外是將電動執行機構與電動裝置視為同一類產品，分別應用于閉環控制系統和開環控制系統。閥門電動裝置在國內電力、冶金、石油化工、污水處理及市政等各個行業得到應用。與其他閥門驅動裝置相比，電動驅動裝置具有動力源廣泛，操作迅速、方便等特點，并且容易滿足各種控制要求。所以，在閥門驅動裝置中，電動裝置占主導地位。

Since 1929, LIMITORQUE has produced the world's first valve electric device, the valve electric device has been developed rapidly the construction and the electric device are regarded as the same kind of products, which are respectively applied to the closed loop control system and the open-loop control system. Valve electric device in the domestic electric power, metallurgy, petrochemical, sewage treatment and municipal and other industries have been applied.Compared with other valve drive devices, electric drive device has a wide range of power sources, rapid operation, convenience, and easy to meet various control requirements.Therefore, in the valve drive, electric devices dominate.

用戶的需求是多種多樣的，有希望帶控制的、帶無線遙控的、帶狀態顯示的、帶總線通訊等。現場的工況條件千差萬別，如長期潛水、抗輻射、抗震動、耐高溫、耐腐蝕、防爆等。總體上閥門電動裝置的發展正按照用戶需求、工況條件朝著高智能型、高可靠性兩個方向發展：

The user's needs are diverse, there is hope with control, with wireless remote control, with state display, with bus communications.The work-ing conditions on site vary widely, such as long-term diving, anti-radiation, anti-vibration, high temperature, corrosion resistance, explosion-proof and so on.On the whole, the development of the valve electric device is developing in two directions, that is, high intelligence and high reliability according to the user's demand and work-ing condition:

一是隨著電力電子技術、計算機技術及通訊技術的快速發展，單片機和新型高速微處理器代替以模擬電子器件為主的閥門電動裝置控制單元，閥門電動裝置正朝著高智能型方向快速發展，功能越來越強大。適合一般現場工況環境，操作和控制越來越方便。

First, with the rapid development of power electronic technology, computer technology and communication technology, MCU and new high speed microprocessor are the main substitutes for analog electronic devices valve electric device control unit, valve electric device is moving in the direction of rapid development of high intelligence, more and more powerful.It is more and more convenient to operate and control for general work-ing conditions.

二是為適應特殊行業的惡劣工況環境，這些場合往往對閥門電動裝置自身控制的要求不高，但特別強調高可靠性，通過特殊的機械結構設計和材料選用，經過嚴酷的試驗測試．使閥門電動裝置正朝著高可靠性方向發展。

Second, in order to adapt to the harsh work-ing conditions of special industries, these occasions often do not have high requirements for the self-control of valve electric devices.But special emphasis on high reliability, through the special mechanical structure design and material selection, after rigorous test tests, so that the valve electric device is moving toward high reliability direction. 

電動閥門一般是由給排水專業選型的，給排水專業技術人員在工程設計時須對閥門的電動裝置提出具體的功能要求，并由專業制造廠商對電動裝置進行選型。然而，在實際工程中經常會發生在現場安裝時，閥門電動驅動裝置與控制系統沖突等不匹配的現象。這通常是由于在確定電動裝置的功能需求時有不合理或是不完善的地方。

Electric valves are generally selected by the professional water supply and drainage, water supply and drainage professional and technical personnel in the engineering design of the electric device to the valve to put forward specific functional requirements, and by the professional manufacturers of electric devices selection.However, in the practical engineering, there is often a mismatch between the electric drive of the valve and the control system when it is installed on the site. This is usually due to unreasonable or imperfect aspects in determining the functional requirements of an electric device.

閥門電動裝置的組成一般由下列部分組成：電動機減速機構，用以降低電動機的輸出轉速；行程控制機構，用以調節和準確控制閥門的啟閉位置；轉矩限制機構，用以調節轉矩（或推力）并使之不超過預定值；手動、電動切換機構，進行手動或電動操作的聯鎖機構；開度指示器，用以顯示閥門在啟閉過程中所處的位置。其中，行程控制機構、轉矩限制機構、手動、電動切換機構及開度指示器等合稱為電動執行器。

The stroke control mechanism is used for adjusting and accurately controlling the opening and closing position of the valve;a torque limiting mechanism for adjusting the torque (or thrust) so that it does not exceed a predetermined value;manual, electric switching mechanism, manual or electric operation of the interlock mechanism;the opening indicator is used to show the position of the valve in the opening and closing process. The stroke control mechanism, the torque limiting mechanism, the manual, the electric switching mechanism and the opening indicator are collectively referred to as electric actuators.