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但隔膜泵畢竟是精密設(shè)備，盡管價(jià)格不高，在使用中仍然需要用心的維護(hù)，否則很容易出現(xiàn)以下情況。

舉例說明：當(dāng)某公司維修部門剛收到泵時(shí)，將泵頭打開后可以看到膜片、閥片和泵腔內(nèi)充滿了顆粒雜質(zhì)，從而使這些泵當(dāng)時(shí)幾乎完全沒有抽力；而在做了簡(jiǎn)單清潔，或者更換一些必要部件后（這是極少數(shù)的情況），又重新恢復(fù)了活力。

For example, when a company's maintenance department has just received the pump, when the pump is opened, the diaphragm, the valve plate and the pump chamber are filled with granular impurities, so that the pump is almost completely free of force at the time; and after doing simple cleaning, or replacing some necessary components (this is a very small number of cases), it is re recovered. Vitality.

這些故障是如何發(fā)生的呢？

How did these failures happen?

不恰當(dāng)?shù)牟僮?/p>

Improper operation

1）安裝抽濾漏斗時(shí)，漏斗的出液口靠近真空接口，導(dǎo)致部分濾液被吸入泵內(nèi)，當(dāng)濾液吹干后，析出的溶質(zhì)顆粒殘留在泵內(nèi)。

1) when the filter funnel is installed, the outlet of the funnel is close to the vacuum interface, which causes some filtrate to be inhale in the pump. When the filtrate is blown dry, the precipitated solute particles are retained in the pump.

2）濾紙選擇錯(cuò)誤或者鋪放濾紙時(shí)不小心捅破，導(dǎo)致部分濾紙纖維或?yàn)V液被吸入泵內(nèi)。

2) improper selection of filter paper or careless puncture when placing filter paper, resulting in partial filter paper fiber or filtrate being sucked into the pump.

3）真空軟管放在實(shí)驗(yàn)臺(tái)上時(shí)，未關(guān)閉隔膜泵，臺(tái)面上的灰塵和雜質(zhì)被無意中吸入。

3) when the vacuum hose is placed on the test stand, the diaphragm pump is not closed, and the dust and impurities on the table surface are accidentally inhaled.

以上這些問題，可以通過增加隔膜泵保護(hù)濾器來避免。

These problems can be avoided by increasing the diaphragm pump protection filter.

保護(hù)濾器可以阻隔大部分顆粒，當(dāng)發(fā)現(xiàn)保護(hù)濾器變色或者真空抽力不足時(shí)，此時(shí)更換保護(hù)濾器即可。

The protective filter can block most of the particles. When the protective filter is found to be discolouration or the vacuum is insufficient, the protective filter can be replaced at this time.