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技術文章

 實驗臺廠家防止靜電有妙招

2021-02-10 11:07:27

  實驗(yan)臺廠家(jia)告訴我(wo)們(men),很多儀器在經(jing)過電(dian)流和電(dian)磁(ci)之后,會有(you)小電(dian)場,為了實驗(yan)的準確性(xing),我(wo)們(men)就(jiu)需要減少(shao)這(zhe)些(xie)一起上的磁(ci)性(xing),但有(you)些(xie)人(ren)并不知(zhi)道該怎么處理這(zhe)些(xie)小電(dian)磁(ci),實驗(yan)臺廠家(jia)就(jiu)給大家(jia)來介(jie)紹(shao)4種方(fang)法,幫助大家(jia)有(you)效的減少(shao)這(zhe)些(xie)電(dian)磁(ci)。

  1、實驗(yan)室儀(yi)器(qi)設(she)備促使發生電(dian)荷(he)的泄露:在災害對策中,最(zui)簡單的方法(fa)是進行接(jie)地。該方法(fa)是通過(guo)金屬(shu)導體使發生電(dian)荷(he)迅(xun)速消失(shi)到大地中。但是,采用這種(zhong)方法(fa),如果帶電(dian)體是導體可以(yi)簡單地消除,而(er)塑料或化纖類、石(shi)油類等絕緣物,由于帶電(dian)部分的電(dian)荷(he)難(nan)以(yi)移動,效果不(bu)大。

  2、實驗室(shi)儀器(qi)設備靜電保(bao)護接地

  在(zai)處理熔劑、粉狀物(wu)(wu)質(zhi)或其他易(yi)燃(ran)產品的地方,常存在(zai)有危險電位,因為靜(jing)(jing)電積(ji)累在(zai)設備(bei)(bei)上、處理的物(wu)(wu)料上、甚至在(zai)操作人(ren)員身上。實驗臺廠家的儀器設備(bei)(bei)的靜(jing)(jing)電電荷對地或其他設備(bei)(bei)放電,遇著易(yi)燃(ran)或爆(bao)(bao)炸物(wu)(wu)質(zhi)的時候,必然引起火災與爆(bao)(bao)炸,造成每年有許多人(ren)傷亡(wang)和帶來大量財產損失。

  3、實驗室儀器(qi)設備消除(chu)帶電(dian)(dian)(dian)(dian)(dian)(dian)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)荷:在即(ji)使(shi)(shi)抑制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)荷發生、促使(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)荷泄漏,仍然帶靜電(dian)(dian)(dian)(dian)(dian)(dian)的(de)情況下,應(ying)該(gai)積(ji)極地消除(chu)帶有(you)的(de)靜電(dian)(dian)(dian)(dian)(dian)(dian)。對此可(ke)使(shi)(shi)用除(chu)靜電(dian)(dian)(dian)(dian)(dian)(dian)器(qi),目前(qian)有(you)各(ge)種(zhong)除(chu)靜電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)在開發和銷(xiao)售(shou)。目前(qian)開發的(de)除(chu)靜電(dian)(dian)(dian)(dian)(dian)(dian)裝置是利(li)用離子進(jin)行除(chu)電(dian)(dian)(dian)(dian)(dian)(dian)。按離子的(de)生成方式分類有(you)自放電(dian)(dian)(dian)(dian)(dian)(dian)式除(chu)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)壓附加(jia)式除(chu)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)、放射性(xing)同位(wei)素式除(chu)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)三種(zhong)。

  4、實(shi)驗(yan)室儀器設備抑(yi)制靜電的(de)產(chan)生(sheng)(sheng):由于靜電的(de)發生(sheng)(sheng)源(yuan)是(shi)物(wu)(wu)體之間的(de)摩擦或分離作(zuo)用等,因此要盡可能抑(yi)制這些作(zuo)用。例(li)如,在液體管路輸送(song)、粉塵物(wu)(wu)空(kong)氣(qi)輸送(song)或者塑料(liao)(liao)的(de)擠壓等作(zuo)業(ye)中,最好的(de)方法是(shi)降低速(su)(su)度。實(shi)際上這樣會影響作(zuo)業(ye)效率。石油類的(de)安(an)全流速(su)(su)在1m/s以下(xia)。靜電由于物(wu)(wu)質的(de)不(bu)同而帶電量或極性不(bu)同。因此可行的(de)措施是(shi)避免使用容易帶電的(de)絕(jue)緣物(wu)(wu),而使用通過組(zu)合難(nan)易產(chan)生(sheng)(sheng)靜電的(de)材料(liao)(liao)。