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众所周知,钻井泵的关键部位是液力端,而泵阀则是液力端的心脏,它的结构设计和制造质量将决定泵的性能和寿命。由于泵阀寿命低,成为钻井泵的薄弱环节,因此,人们常称它为易损件。我国的泵阀使用寿命较低,目前一般在100小时以下,个别改进型能达200小时。目前国内外石油机械行业对泵阀都十分重视。六十年代以来,国外在阀的结构、材质、加工工艺以及泥浆净化、泵的吸入性能等方面开展了大量的试验研究工作,使产品质量有了较大改进,使用寿命大幅度提高。以美国National公司的泵阀为
As we all know, the key part of the drilling pump is the hydraulic end, while the pump valve is the heart of the hydraulic end. Its structural design and manufacturing quality will determine the pump performance and life expectancy. Due to the low life of the valve, the pump is the weak link, so people often call it a wearing part. China’s valve life is lower, the current generally below 100 hours, individual improvements up to 200 hours. At present, domestic and foreign petroleum machinery industry attaches great importance to the valve. Since the 1960s, a large number of experimental studies have been carried out in foreign countries on the structure, material, processing technology of the valve, as well as the purifying of the mud and the suction performance of the pump. The quality of the product has been greatly improved, and the service life has been greatly improved. To the United States National valve pump