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電泳槽設(shè)計之槽液流動方向簡介中英對照版

1467 人參與 2011年12月06日 05:41 分類 : 電泳設(shè)備電泳設(shè)備工藝評論

Direction of Flow 流動方向 An electrocoat tank should be designed to move paint continuously in a circular path, with the surface moving in the same direction as the conveyor (see Figure 2). This design is experience-proven and results in the cleanest electrocoat body. Smooth fluid flow direction change (at the entrance end of the tank) is accomplished most effectively by using a radial lip. Paint headers direct paint up the entrance decline and help prevent pigment settling as the paint changes direction. Two variations of this design are currently being employed (see Figure 3). Bidirectional flow systems have also proved successful when incorporated with bottom center filtration. 電泳槽要設(shè)計成使油漆沿單一循環(huán)路線連續(xù)運動，液面運動方向與運輸鏈運行方面相同（見圖2），實際經(jīng)驗證明，這樣的設(shè)計能得到最干凈的電泳車身。平穩(wěn)的流向變化（在槽入口端）可考慮使用一“搖臂導(dǎo)向板”來實現(xiàn)。在工件入口端斜坡上噴頭以引導(dǎo)漆液流向入口端，漆液雖改變流向，以有助于防止顏料沉淀?，F(xiàn)在這種設(shè)計的兩種形式已被普遍采用（見圖3）。另外，底部中央有抽出過濾裝置的雙向流動系統(tǒng)也已被證明是成功的。 A combination of floor headers and vertical side pipes with eductors provide effective tank agitation. If necessary, exit-end draft tubes can be added for enhanced circulation. Draft tubes are large volume agitator pump systems which move paint from the top surface and start it moving across the bottom surface. Floor headers should be supported approximately three inches (7-8 cm.) above the tank floor to permit free flow of paint along the bottom (see Figure 2). 槽底的噴射嘴與豎立式帶噴頭側(cè)管相結(jié)合可提供有效的槽液攪拌。必要時，為加強循環(huán)，可在出口端加引流管。引流管是大流量攪拌泵系統(tǒng)，它從液面使漆液運動，它使漆液做橫跨底表面運動。用引流管時，大量漆液不經(jīng)過濾而返回，因此當(dāng)采用引流管時會產(chǎn)生染質(zhì)污物和縮孔問題，就會延長問題存在的時間。槽底噴管要設(shè)在離槽底約3英寸（7-8cm）處，這樣可使漆液沿槽底自由流動（見圖2）。 Any area in the paint tank that is not properly agitated will permit pigment settling. Areas such as drains, sumps, pump wells, or dead paint lines may collect pigment. A paint return line with an eductor should be inserted into such areas to prevent such settling. 在漆槽中攪拌不徹底的任何區(qū)域都會引起顏料沉淀。象排出口，儲槽，泵井或空油漆管路等部位都會有顏料匯集。為防止此類沉淀，要在這些區(qū)域安設(shè)帶噴射嘴的油漆返回管路。 The tank floor should be angled so that the main tank and weir will drain to permit maintenance. The holding tank may be used to contain inadvertent overflow from the dip tank. 槽底要有一定的坡度，這樣主槽和溢流槽均可以完全排放，便于維修。也可以用電泳儲存槽來盛裝工藝槽偶然溢出的槽液。 [caption id="attachment_226" align="alignnone" width="423" caption="電泳槽液流動方向"]