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移运式酸化设备《А_зИНмаш—30A》的4НК—500泵的液力端柱塞是采用20X材料制成的,并进行表面镀铬。柱塞盘根是V型橡胶皮碗(一般用三个)。使用中由于处于强腐蚀介质中,故柱塞产生强烈的腐蚀机械磨损。试验表明,工作几个小时之后柱塞表面就布满了明显的磨损痕迹(尺寸达1—2毫米的斑痕和溃蚀)。这就导致柱塞密封件的破坏,使泵的工作能力急剧下降。
The hydrodynamic end plungers of the 4НK-500 pump for the “А_зИНмаш-30A” mobile acidification unit are made of 20X material and are chrome-plated on the surface. Plunger packing is V-shaped rubber cups (usually three). In use due to the strong corrosive medium, so the plunger produces a strong corrosion of mechanical wear. Tests showed that the plunger surface was marked with signs of wear (scabs and pitting 1-2 mm in size) after a few hours of operation. This results in the destruction of the plunger seal, which drastically reduces the pump’s ability to work.