孙建,孔繁余,季建刚,孔祥花.变螺距诱导轮的设计计算[J].农业机械学报,2007,38(2):102-105.
.[J].Transactions of the Chinese Society for Agricultural Machinery,2007,38(2):102-105.
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变螺距诱导轮的设计计算   [下载全文]
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DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  变螺距  诱导轮  计算
基金项目:
孙建  孔繁余  季建刚  孔祥花
江苏大学
中文摘要:为了有效降低泵的必须汽蚀余量,泵的吸入口可加装前置变螺距诱导轮。但变螺距诱导轮的设计方法还在摸索阶段。本文从分析变螺距诱导轮螺距变化规律入手,以诱导轮入口无汽蚀,出口扬程满足离心叶轮进口能量要求为计算依据,推导了诱导轮基本结构参数的计算方法。按照该方法设计的诱导轮可获得良好的汽蚀性能。
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Abstract: Variable-pitch inducers can be fixed before impellers to lower the NPSHr of pumps efficiently. But their design method is still in groping stage. Starting with analyzing the variation regularities of pitch for variable-pitch inducers, considered that no cavitation in its inlet and the head could satisfy centrifugal impeller's intake energy, the computational method of the basic-structure parameters of an inducer has been deduced. Moreover, satisfactory cavitation performances were achieved by using the proposed method to design the variable-pitch inducer.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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