40种泵动画:结构、工作原理,你看懂了吗
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齿轮泵
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多级离心泵
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隔膜泵
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隔膜计量泵
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高温分离型屏蔽泵
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基本分离型屏蔽泵
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罗茨真空泵
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混流泵
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标准逆向循环型屏蔽泵
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单柱塞式液压泵
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摆线转子泵
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活塞泵
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离心泵
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内齿轮泵
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泥浆泵
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旁路调节泵
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螺杆泵
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泥浆分离型屏蔽泵
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气液增压泵
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气气增压泵
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全夹套轴外循环屏蔽泵
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三级往复泵
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气动隔膜泵
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水环式真空泵
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双动往复泵
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外齿轮泵
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特殊结构往复泵
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水环式真空泵
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旋片式真空泵
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往复泵
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旋涡泵
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往复泵
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叶片泵
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一级往复泵
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轴流管道泵
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蒸汽喷射泵
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轴内循环 屏蔽泵
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轴外循环屏蔽泵
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自吸型屏蔽泵
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柱塞泵结构图
世界上第一把玉米铣刀
1889年,英格索尔公司的创始人,瑞典移民英格索尔发明了世界上第一把螺旋(玉米)铣刀。从图片上可以看出来,这把铣刀是将刀粒均匀镶嵌在圆筒状的橡木刀体上,结构和现在的玉米铣刀非常相似。这种突破性的设计也获得了当时的美国专利。
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