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案例頻道作者：楊昌群（中國(guó)石化銷售股份有限公司華南分公司，廣東 廣州 510620）
摘要：管道運(yùn)輸是油氣長(zhǎng)距離運(yùn)輸?shù)闹饕绞?。在管道運(yùn)輸中，為了預(yù)防突發(fā)事件，一般都安裝有緊急切斷閥門。本文在分析現(xiàn)有閥門執(zhí)行器工作原理和基本結(jié)構(gòu)的基礎(chǔ)上，提出了一種電液執(zhí)行器直接驅(qū)動(dòng)的具有緊急切斷功能的切斷閥門新型方案。詳細(xì)闡述了該電液執(zhí)行器液壓系統(tǒng)的工作原理并對(duì)關(guān)鍵部件進(jìn)行了選型和設(shè)計(jì)計(jì)算，結(jié)論表明本電液執(zhí)行器直接驅(qū)動(dòng)的閥門在油氣管道能夠滿足油氣運(yùn)輸中的緊急切斷工況，具有重要的推廣應(yīng)用價(jià)值。
關(guān)鍵詞：直驅(qū)式; 電液執(zhí)行器; 緊急切斷閥
Abstract: The pipeline is the main tool for long-distance transportation of oil and gas. In the pipeline transportation system, emergency shut-off valves are generally installed to prevent emergencies. Based on the analysis of the working principle and structure of the cut-off valve actuator, this paper proposes a novel cut-off valve with an emergency shut-off function driven by the electro-hydraulic actuator directly. The working principle of the hydraulic system of the electro-hydraulic actuator is elaborated in detail, and the key components are selected and designed. The conclusion shows that the valve directly driven by the electro-hydraulic actuator can meet the emergency cut-off condition in oil and gas transportation, and has important application value.
Key words: Direct drive; Electro-hydraulic actuator; Emergeny Cut-off Valves
在線預(yù)覽：一種應(yīng)用于油氣管道的緊急切斷電液執(zhí)行器的研究設(shè)計(jì)
摘自《自動(dòng)化博覽》2019年12月刊
北京市公安局海淀分局備案號(hào)：11010802023656號(hào)