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目前，我队所使用的200/40泥浆泵，在清水钻进中水量基本上合乎要求。但以泥浆钻进，则送水量很难达到要求。根据我们在现场试验多次，有效水量只占额定水量的3/5强。最大为130公升/分钟～140公升/分钟。尤其在处理孔内坍塌、漏水、掉圤、钻进流砂层等，使用特种种泥浆时，水泵的工作有时竟会停止。这就严重的影响了钻孔的正常钻进；有时会造成严重的事故。为此，我们对水泵的几个部件，作了不同的改进。经我们雨三年的使用，基本上解决了上述问题。现作一简单介绍，供各单位参考。
At present, the 200/40 mud pump used by our team basically meets the requirements of water volume in water drilling. But to mud drilling, then the amount of water is difficult to meet the requirements. According to our test several times in the field, effective water only accounts for 3/5 of rated water. A maximum of 130 liters / minute to 140 liters / minute. Especially in dealing with hole collapses, leaking, falling, drilling sand, etc., the use of special kind of mud, the pump sometimes stopped. This severely affects the normal drilling of the borehole; it can sometimes cause serious accidents. To this end, we made several improvements on several parts of the pump. After three years of rain, we basically solved the above problems. Now make a brief introduction, for all units for reference.