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class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-huagong_famenmp/">閥門</a>?<a href="http://www.cdcfah.com/cp/third-famenmp_zhixingqiav/">執(zhí)行器</a>?廣東執(zhí)行機(jī)構(gòu) 歡迎來電江蘇蘭閥通用設(shè)備供應(yīng)</p><div id="f1tar38" class="leftbox clearfix"><h1>廣東執(zhí)行機(jī)構(gòu) 歡迎來電江蘇蘭閥通用設(shè)備供應(yīng)</h1><div id="qhnz7hx" class="proBig"><div id="yrritl2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637418201853805809/8254593.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dnxrjeb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637418201853805809/8254593.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="7ogfsxa" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>廣東執(zhí)行機(jī)構(gòu),機(jī)構(gòu)</p><p><span>***更新：</span>2021-01-22 10:17:25</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="1suzoe4" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇蘭閥通用設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>金</p><p><span>郵箱: </span>81768246@qq.com</p><p><span>電話: </span>13915001988</p><p><span>傳真: </span>0519_</p><p><span>網(wǎng)址: </span>http://www.lanfa.cn</p><p><span>手機(jī): </span>0519-88610258</p><p><span>地址: </span>橫山橋鎮(zhèn)省莊村</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8vn2vos" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="i88a1t2" class="box"><p><p style="text-indent:25px">根據(jù)生產(chǎn)工藝控制要求確定電動(dòng)執(zhí)行器的控制模式：電動(dòng)執(zhí)行器的控制模式一般分為開關(guān)型（開環(huán)控制）和調(diào)節(jié)型（閉環(huán)控制）兩大類。1，廣東執(zhí)行機(jī)構(gòu).開關(guān)型（開環(huán)控制）開關(guān)型電動(dòng)執(zhí)行器一般實(shí)現(xiàn)對(duì)閥門的開或關(guān)控制，閥門要么處于全開位置，要么處于全關(guān)位置，此類閥門不需對(duì)介質(zhì)流量進(jìn)行精確控制。特別值得一提的是開關(guān)型電動(dòng)執(zhí)行器因結(jié)構(gòu)形式的不同還可分為分體結(jié)構(gòu)和一體化結(jié)構(gòu)。選型時(shí)必需對(duì)此做出說明，不然經(jīng)常會(huì)發(fā)生在現(xiàn)場安裝時(shí)與控制系統(tǒng)***等不匹配現(xiàn)像，廣東執(zhí)行機(jī)構(gòu)，廣東執(zhí)行機(jī)構(gòu)。a）分體結(jié)構(gòu)（通常稱為普通型）：控制單元與電動(dòng)執(zhí)行器分離，電動(dòng)執(zhí)行器不能單獨(dú)實(shí)現(xiàn)對(duì)閥門的控制，必需外加控制單元才能實(shí)現(xiàn)控制，一般外部采用控制器或控制柜形式進(jìn)行配套。執(zhí)行機(jī)構(gòu)裝置全部安裝在一個(gè)緊湊的外殼內(nèi)。廣東執(zhí)行機(jī)構(gòu)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東執(zhí)行機(jī)構(gòu),機(jī)構(gòu)" src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637418201853805809/8254593.png"></div><p style="text-indent:25px">電動(dòng)執(zhí)行器選用須知：一、根據(jù)閥門所需的扭力確定電動(dòng)執(zhí)行器的輸出扭力閥門啟閉所需的扭力決定著電動(dòng)執(zhí)行器選擇多大的輸出扭力，一般由使用者提出或閥門廠家自行選配，做為執(zhí)行器廠家只對(duì)執(zhí)行器的輸出扭力負(fù)責(zé)，閥門正常啟閉所需的扭力由閥門口徑大小、工作壓力等因素決定，但因閥門廠家加工精度、裝配工藝有所區(qū)別，所以不同廠家生產(chǎn)的同規(guī)格閥門所需扭力也有所區(qū)別，即使是同個(gè)閥門廠家生產(chǎn)的同規(guī)格閥門扭力也有所差別，當(dāng)選型時(shí)執(zhí)行器的扭力選擇太小就會(huì)造成無法正常啟閉閥門，因此電動(dòng)執(zhí)行器必需選擇一個(gè)合理的扭力范圍。二、根據(jù)所選電動(dòng)執(zhí)行器確定電氣參數(shù)因不同執(zhí)行器廠家的電氣參數(shù)有所差別，所以設(shè)計(jì)選型時(shí)一般都需確定其電氣參數(shù)，主要有電機(jī)功率、額定電流、二次控制回路電壓等，往往在這方面的疏忽，結(jié)果控制系統(tǒng)與電動(dòng)執(zhí)行器參數(shù)不匹配造成工作時(shí)空開跳閘、保險(xiǎn)絲熔斷、熱過載繼電器保護(hù)起跳等故障現(xiàn)像。廣東執(zhí)行機(jī)構(gòu)執(zhí)行機(jī)構(gòu)驅(qū)動(dòng)源獲取簡單，且運(yùn)行成本更為低廉。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東執(zhí)行機(jī)構(gòu),機(jī)構(gòu)" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanfatonyon/637418191718894006/378305.png"></div><p style="text-indent:25px">執(zhí)行機(jī)構(gòu)安裝于再熱主汽閥彈簧室上，它的活塞桿與再熱主汽閥閥桿直接相連。因此，活塞向上運(yùn)動(dòng)開啟閥門，向下運(yùn)動(dòng)關(guān)閉閥門。由高壓供油管HP來的高壓油流經(jīng)隔離閥、節(jié)流孔進(jìn)入油動(dòng)機(jī)底部油缸，開啟再熱主汽閥，同時(shí)油動(dòng)機(jī)底部油缸與遮斷引導(dǎo)閥油動(dòng)機(jī)的油缸相連，其隨再熱主汽閥開啟而開啟，關(guān)閉而關(guān)閉。在再熱主汽閥執(zhí)行機(jī)構(gòu)上配有一個(gè)快速卸載閥，快速卸載閥復(fù)位油腔與AST危急遮斷油母管相連，一旦危急遮斷系統(tǒng)動(dòng)作造成危急遮斷母管的降落，卸載閥就會(huì)開啟，從而關(guān)閉再熱主汽閥。</p><p style="text-indent:25px">電動(dòng)執(zhí)行機(jī)構(gòu)是電動(dòng)單元組合式儀表中的執(zhí)行單元。它是以單相交流電源為動(dòng)力，接受統(tǒng)一的標(biāo)準(zhǔn)直流信號(hào)，輸出相應(yīng)的轉(zhuǎn)角位移，操縱風(fēng)門、擋板等調(diào)節(jié)機(jī)構(gòu)，可配用各種電動(dòng)操作器完成調(diào)節(jié)系統(tǒng)“手動(dòng)—自動(dòng)”的無擾動(dòng)切換，及對(duì)被調(diào)對(duì)象的遠(yuǎn)方手動(dòng)操作，電動(dòng)執(zhí)行機(jī)構(gòu)還設(shè)有電氣限位和機(jī)械限位雙重保護(hù)來完成自動(dòng)調(diào)節(jié)的任務(wù)。它在電力、冶金、石油化工及鍋爐系統(tǒng)的上水及風(fēng)門擋板的調(diào)節(jié)等部門得到較廣應(yīng)用。電動(dòng)執(zhí)行機(jī)構(gòu)包括伺服放大器及執(zhí)行機(jī)構(gòu)兩大部分，其中執(zhí)行機(jī)構(gòu)又分為電機(jī)、減速器及位置發(fā)送器三大部件。執(zhí)行機(jī)構(gòu)動(dòng)作時(shí)間取決于電機(jī)或齒輪的減速比。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東執(zhí)行機(jī)構(gòu),機(jī)構(gòu)" src="https://tyunfile.71360.com/WaterMark/UploadFile/lanfatonyon/637418191525163381/4954995.png"></div><p style="text-indent:25px">電動(dòng)多回轉(zhuǎn)式執(zhí)行機(jī)構(gòu)：電力驅(qū)動(dòng)的多回轉(zhuǎn)式執(zhí)行機(jī)構(gòu)是好常用、好可靠的執(zhí)行機(jī)構(gòu)類型之一。使用單相或三相電動(dòng)機(jī)驅(qū)動(dòng)齒輪或蝸輪蝸桿好后驅(qū)動(dòng)閥桿螺母，閥桿螺母使閥桿產(chǎn)生運(yùn)動(dòng)使閥門打開或關(guān)閉。多回轉(zhuǎn)式電動(dòng)執(zhí)行機(jī)構(gòu)可以快速驅(qū)動(dòng)大尺寸閥門。為了保護(hù)閥門不受損壞，安裝在在閥門行程的終點(diǎn)的限位開關(guān)會(huì)切斷電機(jī)電源，同時(shí)當(dāng)安全力矩被超過時(shí)，力矩感應(yīng)裝置也會(huì)切斷電機(jī)電源，位置開關(guān)用于指示閥門的開關(guān)狀態(tài)，安裝離合器裝置的手輪機(jī)構(gòu)可在電源故障時(shí)手動(dòng)操作閥門。執(zhí)行機(jī)構(gòu)包含了位置感應(yīng)裝置，力矩感應(yīng)裝置，電極保護(hù)裝置，邏輯控制裝置。溫州電動(dòng)執(zhí)行機(jī)構(gòu)批發(fā)價(jià)格</p><p style="text-indent:25px">執(zhí)行機(jī)構(gòu)以一定轉(zhuǎn)矩或推力推動(dòng)調(diào)節(jié)機(jī)構(gòu)，從而完成生產(chǎn)過程參數(shù)控制要求的裝置，也稱執(zhí)行器。廣東執(zhí)行機(jī)構(gòu)</p><p style="text-indent:25px">調(diào)節(jié)型（閉環(huán)控制）：調(diào)節(jié)型電動(dòng)執(zhí)行器不僅具有開關(guān)型一體化結(jié)構(gòu)的功能，它還能對(duì)閥門進(jìn)行精確控制，從而精確調(diào)節(jié)介質(zhì)流量。因篇幅有限其工作原理在此不作詳細(xì)說明。下面就調(diào)節(jié)型電動(dòng)執(zhí)行器選型時(shí)需注明的參數(shù)做簡要說明。a）控制信號(hào)類型（電流、電壓）調(diào)節(jié)型電動(dòng)執(zhí)行器控制信號(hào)一般有電流信號(hào)（4～20mA、0～10mA）或電壓信號(hào)（0～5V、1～5V），選型時(shí)需明確其控制信號(hào)類型及參數(shù)。b）工作形式（電開型、電關(guān)型）調(diào)節(jié)型電動(dòng)執(zhí)行器工作方式一般為電開型（以4～20mA的控制為例，電開型是指4mA信號(hào)對(duì)應(yīng)的是閥關(guān)，20mA對(duì)應(yīng)的是閥開），另一種為電關(guān)型（以4-20mA的控制為例，電開型是指4mA信號(hào)對(duì)應(yīng)的是閥開，20mA對(duì)應(yīng)的是閥關(guān)）。一般情況下選型需明確工作形式，很多產(chǎn)品在出廠后并不能進(jìn)行修改，奧美閥控生產(chǎn)的智能型電動(dòng)執(zhí)行器可以通過現(xiàn)場設(shè)定隨時(shí)修改。廣東執(zhí)行機(jī)構(gòu)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2961323.html</p></div></div></div></div></div><div id="b7glkk7" class="page-right twoColRt"><div id="82hvpp5" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="si4kmg4" 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