輔助陽(yang)極就是外加(jia)電流陰極保護(hu)中的陽(yang)極地床，具有加(jia)大陽(yang)極與(yu)土(tu)壤的接觸的功能(neng)，過直流電源以及輔助陽(yang)極，迫(po)使(shi)電流從(cong)土(tu)壤流向被保護(hu)金屬(shu) 咨詢(xun)電話(hua)：13723197736 聯系人：張賓
輔(fu)助(zhu)(zhu)陽極就是外加電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)陰(yin)極保(bao)護中的陽極地床(chuang)，具(ju)有加大(da)陽極與土壤(rang)的接觸的功能，過直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源以及輔(fu)助(zhu)(zhu)陽極，迫(po)使電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)從土壤(rang)流(liu)(liu)向被保(bao)護金屬(shu)，使金屬(shu)表面陰(yin)極電(dian)(dian)(dian)(dian)(dian)位降低到陽極電(dian)(dian)(dian)(dian)(dian)位。有時(shi)候主陽極的電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)存在(zai)制約，不能太大(da)，所以需(xu)要輔(fu)助(zhu)(zhu)陽極來增加電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)。
陰極(ji)保(bao)護電(dian)(dian)(dian)流(liu)經由輔助陽(yang)(yang)極(ji)地(di)(di)床流(liu)進土(tu)壤(rang)，因(yin)此(ci)，在(zai)陽(yang)(yang)極(ji)地(di)(di)床周圍的(de)電(dian)(dian)(dian)流(liu)密度(du)、場所、每米長度(du)上(shang)的(de)電(dian)(dian)(dian)壓(ya)(ya)梯度(du)都是大(da)的(de)，并且參數(shu)隨著離地(di)(di)床的(de)距離增加而減小。在(zai)離陽(yang)(yang)極(ji)地(di)(di)床一定距離上(shang)，歲(sui)可以(yi)檢(jian)測丨保(bao)護電(dian)(dian)(dian)流(liu)，但沒有明顯的(de)場強(qiang)，土(tu)壤(rang)電(dian)(dian)(dian)位(wei)等于(yu)零(ling)。該電(dian)(dian)(dian)位(wei)稱作相對遠(yuan)方大(da)地(di)(di)電(dian)(dian)(dian)位(wei)，遠(yuan)方大(da)地(di)(di)與(yu)陽(yang)(yang)極(ji)之間的(de)電(dian)(dian)(dian)壓(ya)(ya)就是陽(yang)(yang)極(ji)電(dian)(dian)(dian)壓(ya)(ya)，因(yin)為在(zai)土(tu)壤(rang)表面是個(ge)圓錐形(xing)的(de)電(dian)(dian)(dian)壓(ya)(ya)分布(bu)曲線，所以(yi)，稱作陽(yang)(yang)極(ji)地(di)(di)床的(de)電(dian)(dian)(dian)壓(ya)(ya)椎。電(dian)(dian)(dian)壓(ya)(ya)椎的(de)高度(du)取(qu)決(jue)于(yu)陽(yang)(yang)極(ji)電(dian)(dian)(dian)壓(ya)(ya)，其形(xing)狀(zhuang)取(qu)決(jue)于(yu)陽(yang)(yang)極(ji)的(de)布(bu)置，這對埋(mai)地(di)(di)的(de)外(wai)部(bu)裝置可能(neng)產生的(de)影響是很重要的(de)。
在(zai)選擇陽(yang)極(ji)地(di)床地(di)方時，要考慮方便的(de)(de)(de)電(dian)(dian)源盒較(jiao)低的(de)(de)(de)土壤電(dian)(dian)阻率，而且要考慮與(yu)(yu)外(wai)部管(guan)道(dao)(dao)的(de)(de)(de)距(ju)離。要得到(dao)較(jiao)低的(de)(de)(de)陽(yang)極(ji)電(dian)(dian)壓(ya)的(de)(de)(de)方法很(hen)多(duo)，可以(yi)(yi)采用若干(gan)個陰極(ji)保(bao)護(hu)站，每個陰極(ji)保(bao)護(hu)站由(you)較(jiao)低的(de)(de)(de)電(dian)(dian)流輸出(chu)，可以(yi)(yi)加長(chang)陽(yang)極(ji)地(di)床來降低接(jie)地(di)電(dian)(dian)阻，可以(yi)(yi)強行降低所需的(de)(de)(de)陽(yang)極(ji)電(dian)(dian)壓(ya)或采用深井(jing)陽(yang)極(ji)。有20m厚的(de)(de)(de)覆土層的(de)(de)(de)深井(jing)陽(yang)極(ji)特(te)別適用于(yu)城市中管(guan)道(dao)(dao)的(de)(de)(de)陰極(ji)保(bao)護(hu)，因(yin)為管(guan)道(dao)(dao)與(yu)(yu)外(wai)部裝置的(de)(de)(de)距(ju)離較(jiao)小(xiao)。
焦作鑫弘大輕合金公司，咨詢電話(hua)：13723197736 聯系(xi)人：張賓
