摘要
探讨了ISO 9906和GB/T 3216标准中有关流量、扬程、效率和NPSHR的判定问题。以标准中性能保证值判定为基础,分析了标准中性能满足的保证条件,分别提出了流量、扬程、效率和NPSHR的判定的数学表达式,解决了计算机辅助试验中计算机判定的技术难题。比较了新、旧标准判别方法的优缺点,为进一步理解和贯彻实施这些标准将起到积极作用。
The verification of capacity, head and efficiency of pumps, and NPSHR in the ISO 9906 and GB/T 3216 are studied. Based on the guarantee value of performance in the standard, the guarantee condition satified by the performance in the standard is discussed and the mathematical expressions about the value verification of capacity, head, efficiency and NPSHR are presented respectively. The technical problem on the verification by computer in the computer aided test has been solved. The verification methods in the old and new standards are compared at the same time.
出处
《排灌机械》
2007年第2期53-56,共4页
Drainage and Irrigation Machinery
