進(jìn)口電動硬密封蝶閥(德國OLES奧萊斯閥門)
【進(jìn)口電動硬密封蝶閥】詳細(xì)說明：
本閥從設(shè)計思路上改變了傳統(tǒng)的靠機械變速來完成蝶板開關(guān)速度變化的模式，根據(jù)蝶板不同位置的動作特點，從電動驅(qū)動控制上進(jìn)行了全新的設(shè)計。電動法蘭蝶閥采取改電動裝置輸入電流的頻率，進(jìn)而調(diào)整電動裝置的轉(zhuǎn)動速度和輸出力矩，以達(dá)到控制蝶板開工關(guān)速度，實現(xiàn)蝶板快關(guān)、慢關(guān)兩階段關(guān)閉或慢開、快開兩階段開啟的目的。與液控蝶閥具有同樣的功能。本閥適用于介質(zhì)為水、海水的管路的 泵出口位置，作為閉路閥兼有止回閥的特性，用以避免和減少管路系統(tǒng)中介質(zhì)的倒流和水錘沖擊，保護(hù)管路．對于電廠、水廠等工作電源十分可靠的場合尤其適用。
This valve has changed the traditional mode of changing the speed of butterfly plate switch by mechanical speed change from the design idea. According to the action characteristics of different positions of butterfly plate, a new design has been carried out from the electric drive control. The electric flange butterfly valve adopts changing the frequency of input current of the electric device, and then adjusts the rotating speed and output torque of the electric device so as to control the speed of starting and closing of the butterfly plate and realize the purpose of closing the butterfly plate in two stages of fast closing and slow closing, or opening in two stages of slow opening and fast opening. It has the same function as the hydraulic butterfly valve. This valve is suitable for outlet position of pump in pipeline with medium of water and sea water. It has the characteristics of both closed-circuit valve and check valve. It can avoid and reduce backflow of medium in pipeline system and water hammer impact, and protect pipeline. It is especially suitable for power plants and water plants where working power supply is very reliable.
【進(jìn)口電動硬密封蝶閥】特點：
1. 電動啟閉，具有任意調(diào)整、止回和截止功能。操作方便，安全可靠。 2. 本閥可連續(xù)實現(xiàn)慢開、快開或快關(guān)、慢關(guān)的動作，并有效的防止了泵出口介質(zhì)倒流和水錘的產(chǎn)生。3. 節(jié)能驅(qū)動，與普通蝶閥同樣的驅(qū)動電機即可實現(xiàn)快關(guān)段高速小轉(zhuǎn)矩和慢關(guān)低段大轉(zhuǎn)矩的功能。4. 安裝在泵出口時，本蝶閥同時具有止回啊和閘閥的共同功能，因此可以一閥代兩閥，節(jié)約安裝空間，節(jié)省管網(wǎng)造價。5. 流阻小。本閥全開時流阻系數(shù)不超過0.3，因此可以節(jié)約能源，降低管路的運行費用。 6. 當(dāng)發(fā)生事故或停電時，可以通過手動操作控制蝶閥啟閉。
【進(jìn)口電動硬密封蝶閥】工作原理：
1）偏離管道正中
2）偏離密封面正中
3）傾斜的錐形
當(dāng)閥門開啟時，蝶板與閥座在關(guān)閉時就接觸，利用蝶板偏心1、偏心2迅速脫離閥座，降低了密封副的磨損，磨擦力矩小，開啟靈活。偏心錐面3，使閥門在開啟或關(guān)閉時蝶板能通過閥座內(nèi)孔，實現(xiàn)接觸密封。另外，錐形蝶板的旋轉(zhuǎn)半徑大于密封副接觸位置的旋轉(zhuǎn)半徑，故蝶板在閥門關(guān)閉時將出現(xiàn)越關(guān)越緊，能夠?qū)崿F(xiàn)自鎖，防止蝶板過位。
