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class="NyNewsdetail_con"> <p>　　<strong><a >背壓閥</a></strong>通過內(nèi)置彈簧的彈力來實(shí)現(xiàn)動(dòng)作：當(dāng)系統(tǒng)壓力比設(shè)定壓力小時(shí)，膜片在彈簧彈力的作用下堵塞管路；當(dāng)系統(tǒng)壓力比設(shè)定壓力大時(shí)，膜片壓縮彈簧，管路接通，液體通過背壓閥。背壓閥結(jié)構(gòu)同單向閥相似，但開啟壓力大于單向閥，在0.2到0.6兆帕間。<br />　　<br />　　1、安裝應(yīng)避免與系統(tǒng)發(fā)生共振，否則將對(duì)背壓閥工作產(chǎn)生嚴(yán)重影響，并可能損壞背壓閥發(fā)生危險(xiǎn)。<br />　　<br />　　2、與脈動(dòng)阻尼器同時(shí)使用時(shí)，脈動(dòng)阻尼器應(yīng)安在泵與背壓閥間，以吸收泵與背壓閥間的流量峰值。減緩背壓閥的磨損速度。<br />　　<br />　　3、室外使用應(yīng)加防護(hù)棚或防護(hù)罩。<br />　　<br />　　4、對(duì)<strong><a >背壓閥</a></strong>進(jìn)行任何維護(hù)以前，應(yīng)停止運(yùn)轉(zhuǎn)設(shè)備，釋放壓力，關(guān)閉背壓閥與系統(tǒng)相聯(lián)的閥門，同時(shí)確認(rèn)脈動(dòng)阻尼器內(nèi)沒有壓力。維修時(shí)注意防止被輸送液體傷害人體。<br />　　<br />　　5、背壓閥具有方向性。若背壓閥進(jìn)出口接反，背壓將會(huì)成倍增加，給系統(tǒng)帶來危害并可能發(fā)生危險(xiǎn)。<br />　　<br />　　6、運(yùn)轉(zhuǎn)中發(fā)現(xiàn)背壓閥發(fā)生故障應(yīng)及時(shí)停止系統(tǒng)運(yùn)行或關(guān)閉背壓閥所在管路，停止背壓閥的使用，并檢查更換背壓閥。<br />　　<br />　　7、對(duì)背壓閥進(jìn)行任何檢查、維護(hù)前，應(yīng)停止運(yùn)轉(zhuǎn)設(shè)備，釋放閥內(nèi)壓力，關(guān)閉背壓閥與系統(tǒng)相聯(lián)的閥門，同時(shí)確認(rèn)脈動(dòng)阻尼器內(nèi)沒有壓力。維修時(shí)注意防止閥內(nèi)高壓流體噴濺，傷害人體。</p> </div> <div id="f9mxnqno" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-135840.html">加藥裝置的原理及特點(diǎn)</a></li> <li>下一篇：<a href="/Article-72165.html">意大利SEKO電磁計(jì)量泵的優(yōu)勢(shì)</a></li> </ul> </div> </div>  <div id="f9mxnqno" class="ly_foot"> <div id="f9mxnqno" class="ly_Ftmain"> <div id="f9mxnqno" class="ly_Ftcon"> <div id="f9mxnqno" class="ly_FtLeft"> <ul> <li> <div id="f9mxnqno" class="Ft_tit">關(guān)于我們</div> <a href="/aboutus.html" rel="nofollow">公司簡介</a> <a href="/news.html">新聞中心</a> <a href="/article.html">技術(shù)文章</a> </li> <li> <div id="f9mxnqno" class="Ft_tit">產(chǎn)品中心</div> <a href="/ParentList-173333.html" rel="nofollow">成套加藥裝置</a> <a href="/ParentList-1256164.html" rel="nofollow">萊克威德計(jì)量泵</a> <a href="/ParentList-173314.html" rel="nofollow">意大利seko計(jì)量泵</a> <a 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