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id="xb3q3rq" 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>上海普通防護(hù)型信號(hào)反饋器,信號(hào)反饋器</p><p><span>***更新：</span>2020-12-31 00:25:01</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="mbyvcj7" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無(wú)錫市凱爾利科技有限公司</a></p><p><span>聯(lián)系人：</span>陳經(jīng)理</p><p><span>郵箱: </span>414323414@qq.com</p><p><span>電話: </span>18118900923</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span>http://www.kerly.com.cn</p><p><span>手機(jī): </span>0510-81150880</p><p><span>地址: </span>梅村工業(yè)集中區(qū)錫鴻路48-2號(hào)樓</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="83h9ls3" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="wfhzwif" class="box"><p><p style="text-indent:25px">閥門信號(hào)反饋器當(dāng)設(shè)備內(nèi)的壓力多的過(guò)規(guī)定的工作壓力并達(dá)到閥的開啟壓力時(shí)，內(nèi)部介質(zhì)作用于鬧瓣上面的力大于加載機(jī)構(gòu)施加在它上面的力，于是閥瓣離開閥座，閥開啟，設(shè)備內(nèi)的介質(zhì)即通過(guò)閥座排出、如果閥的排量大于設(shè)備的泄放量，設(shè)備內(nèi)壓力即逐漸下降，而且通過(guò)短時(shí)間的排氣后，壓力即降回至正常工作壓力。此時(shí)內(nèi)壓作用于閥瓣上面的力又小于加載機(jī)構(gòu)施加在它上面的力，閥瓣又緊壓著閥座，介質(zhì)停止排出，設(shè)備保持正常的工作壓力繼續(xù)運(yùn)行，上海普通防護(hù)型信號(hào)反饋器。所以，上海普通防護(hù)型信號(hào)反饋器，閥是通過(guò)閥瓣上介質(zhì)作用力與加載機(jī)構(gòu)作用力的消長(zhǎng)，上海普通防護(hù)型信號(hào)反饋器，自行關(guān)閉或開啟以達(dá)到防止設(shè)備多的壓的目的。閥門信號(hào)反饋器的輸入信號(hào)是標(biāo)準(zhǔn)電流或電壓信號(hào)。上海普通防護(hù)型信號(hào)反饋器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海普通防護(hù)型信號(hào)反饋器,信號(hào)反饋器" src="https://tyunfile.71360.com/UploadFile/kaierli/637340405564042969/4414654.png"></div><p style="text-indent:25px">閥門信號(hào)反饋器為確保這些功能的實(shí)現(xiàn)以及實(shí)時(shí)準(zhǔn)確的得知現(xiàn)場(chǎng)閥門的工作狀態(tài)，氣動(dòng)切斷閥上普遍安裝了一個(gè)能夠檢測(cè)閥門開關(guān)狀態(tài)的設(shè)備——閥位回饋器。通過(guò)閥位回饋能夠把現(xiàn)場(chǎng)氣動(dòng)切斷閥的開關(guān)狀態(tài)，通過(guò)其內(nèi)部的機(jī)械電氣部件轉(zhuǎn)換為電信號(hào)，電信號(hào)遠(yuǎn)傳到控制室就可以實(shí)現(xiàn)閥門狀態(tài)的監(jiān)控及各種復(fù)雜的邏輯功能的控制。雖然不同廠家的閥門信號(hào)反饋器結(jié)構(gòu)不盡相同，但工作原理和主要構(gòu)造基本一致。按照功能的實(shí)現(xiàn)主要分為四個(gè)部分：機(jī)械連接、就地指示、電氣轉(zhuǎn)換和接線端子排。上海普通防護(hù)型信號(hào)反饋器閥門信號(hào)反饋器由輸出端送回輸入端的信號(hào)稱為反饋信號(hào)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海普通防護(hù)型信號(hào)反饋器,信號(hào)反饋器" src="https://tyunfile.71360.com/UploadFile/kaierli/637340405503886719/2364083.png"></div><p style="text-indent:25px">閥門信號(hào)反饋器對(duì)于一臺(tái)新的或停電時(shí)間過(guò)長(zhǎng)需重新設(shè)置參數(shù)，并進(jìn)行初始化，使其符合使用要求，否則閥門信號(hào)反饋器將無(wú)法正常運(yùn)行。這時(shí)可通過(guò)上和下鍵移動(dòng)執(zhí)行機(jī)構(gòu)達(dá)到每一個(gè)我們需要它到達(dá)的位置，來(lái)檢查機(jī)械裝置是否可在全部調(diào)整范圍內(nèi)自由移動(dòng)。對(duì)于直行程移動(dòng)執(zhí)行器，使桿達(dá)到水平位置，顯示屏將顯示一個(gè)介于P48.0 到P52.0 之間的值。如果不是這種情況，調(diào)整磨擦夾緊單元，直到桿水平并顯示“P50.0”時(shí)。確切的說(shuō)，你達(dá)到了這一值，反饋器能測(cè)定的位移將更相對(duì)比較正確。當(dāng)你保持先方向鍵向下按壓的同時(shí)下壓另一方向鍵時(shí)，可快速移動(dòng)執(zhí)行機(jī)構(gòu)。</p><p style="text-indent:25px">閥門信號(hào)反饋器與氣動(dòng)執(zhí)行機(jī)構(gòu)組成一個(gè)反饋控制回路，在這個(gè)控制回路中，顯示的調(diào)節(jié)閥位置反饋信號(hào)作為被控制的變量，與給定信號(hào)值在微處理器中作比較，這兩個(gè)信號(hào)的偏差通過(guò)主控板的輸出口，發(fā)出不同長(zhǎng)度的脈沖，控制 I/P 轉(zhuǎn)換單元壓力輸出口的壓力輸出,從而驅(qū)動(dòng)調(diào)節(jié)閥動(dòng)作。閥門信號(hào)反饋器長(zhǎng)按功能鍵 MODE，這時(shí)顯示器顯示1 CONF, 再按 DOWN 鍵或 UP 鍵，選擇菜單3 AUTE后，短按 MODE 鍵，這時(shí)顯示器顯示STEPO，按DOWN 鍵，使執(zhí)行機(jī)構(gòu)推桿向下移動(dòng),按UP 鍵，使執(zhí)行機(jī)構(gòu)推桿向上移動(dòng), 按 DOWN 鍵或 UP 鍵使比例臂到達(dá)水平位置，這時(shí)要求顯示器的顯示值是 50.0±1%，若不是，請(qǐng)撥動(dòng)大齒輪，把顯示值調(diào)到 50.0±1%。閥門信號(hào)反饋器安裝達(dá)到上述要求后，剩下的就是信號(hào)反饋器內(nèi)部的杠桿彈簧機(jī)構(gòu)的調(diào)整了。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海普通防護(hù)型信號(hào)反饋器,信號(hào)反饋器" src="https://tyunfile.71360.com/UploadFile/kaierli/637340405455888672/989241.png"></div><p style="text-indent:25px">使用閥門信號(hào)反饋器的目的是把現(xiàn)場(chǎng)切斷閥的開關(guān)狀態(tài)，真實(shí)的遠(yuǎn)傳到控制室實(shí)現(xiàn)監(jiān)視及邏輯程序控制。但在實(shí)際使用中卻發(fā)現(xiàn)一些問題：現(xiàn)場(chǎng)切斷閥開關(guān)狀態(tài)變化閥位回饋卻不變化；現(xiàn)場(chǎng)切斷閥狀態(tài)沒有改變，閥位回饋狀態(tài)卻發(fā)生變化；現(xiàn)場(chǎng)切斷閥沒有動(dòng)作，閥位回饋信號(hào)卻頻繁的出現(xiàn)跳變。這種回饋信號(hào)的不變化或誤變化，不僅誤導(dǎo)操作人員做出錯(cuò)誤的操作指令，也能引發(fā)程序邏輯混亂造成生產(chǎn)的停止甚至發(fā)生事故。由此儀表人員要確保閥位回饋信號(hào)的真實(shí)性，加大現(xiàn)場(chǎng)閥位回饋器的維護(hù)力度，確保閥位回饋器處于良好的使用狀態(tài)。閥門信號(hào)反饋器處于50%開度時(shí)，反饋桿應(yīng)處于大致水平位置。上海普通防護(hù)型信號(hào)反饋器</p><p style="text-indent:25px">閥門信號(hào)反饋器可以實(shí)現(xiàn)位置同步，電子速比，多軸協(xié)調(diào)控制。上海普通防護(hù)型信號(hào)反饋器</p><p style="text-indent:25px">閥門信號(hào)反饋器按動(dòng)作的方向可分為單向閥門信號(hào)反饋器和雙向閥門信號(hào)反饋器。單向閥門信號(hào)反饋器用于活塞式執(zhí)行機(jī)構(gòu)時(shí)，閥門信號(hào)反饋器只有一個(gè)方向起作用，雙向閥門信號(hào)反饋器作用在活塞式執(zhí)行機(jī)構(gòu)氣缸的兩側(cè)，從兩個(gè)方向起作用。按閥門信號(hào)反饋器輸出和輸入信號(hào)的增益符號(hào)分為正作用閥門信號(hào)反饋器和反作用閥門信號(hào)反饋器。正作用閥門信號(hào)反饋器的輸入信號(hào)增加時(shí)，輸出信號(hào)也增加，因此，增益為正。反作用閥門信號(hào)反饋器的輸入信號(hào)增加時(shí)，輸出信號(hào)減小，因此，增益為負(fù)。按閥門信號(hào)反饋器輸入信號(hào)是模擬信號(hào)或數(shù)字信號(hào)，可分為普通閥門信號(hào)反饋器和現(xiàn)場(chǎng)總線電氣閥門信號(hào)反饋器。普通閥門信號(hào)反饋器的輸入信號(hào)是模擬氣壓或電流、電壓信號(hào)，現(xiàn)場(chǎng)總線電氣閥門信號(hào)反饋器的輸入信號(hào)是現(xiàn)場(chǎng)總線的數(shù)字信號(hào)。上海普通防護(hù)型信號(hào)反饋器</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2632453.html</p></div></div></div></div></div><div id="lasp2q3" class="page-right twoColRt"><div id="b2lf3la" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div 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