【摘要】 针对卷烟厂卷接机组的高压离心风机在高海拔地区和海平面地区运行工况的不同,详细分析了高海拔地区的大气压力、温度和空气密度的特点以及风机在风量、风压、效率和功率各方面与在海平面地区运行时的不同,最后结合工程实际发现高海拔地区的风机实际运行效率会下降。更多还原

【Abstract】 The operating conditions of high-pressure centrifugal fan of cigarette making machine are different between the high altitude regions and sea-level areas.For that,it analyzed the feature of the atmospheric pressure,temperature and air density in the high altitude regions.Also it analyzed the characteristic of air volume,pressure,efficiency and power of the fan in high altitude cigarette factory,which is compared to the sea-level areas’.In the end,it is found that the fan efficiency will decrease when it is operated in high altitude regions.更多还原