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- contra- rotating main fan 对旋式主通风机
- Development of Main Fan in Taiping Mine of Panzhihua Coal Group Co., Ltd. 攀煤集团太平矿主通风机的研制。
- Bring about a stepless regulation of all constant power range,in the rotating main movement of universal machine tools. 用变频调速和机械变速相结合的方法,在主运动为旋转运动的通用机床中,实现全部恒功率范围内的无级调速。
- The object of this paper is to suppress the torsional vibration responses of a rotating main system by means of eccentric torsional damper (ETD ). 摘要:本文的主要目的在于利用偏心扭转阻尼器()来抑制多自由度旋转运动主系统的扭振反应。
- Use the method of the frequency governor with machine speed.Bring about a stepless regulation of all constant power range,in the rotating main movement of universal machine tools. 用变频调速和机械变速相结合的方法,在主运动为旋转运动的通用机床中,实现全部恒功率范围内的无级调速。
- The opposite direction airflow in Eastern Main Shaft of Certain Mine is caused by the main fan stoping work to undergo repair. 某矿东主井因停产检修、主扇停运引起了主井风流反向。
- Then we enlarge the inlet area and the effective dimension of the main fan,and so the work performance of the main fan reaches the desinged requirment. 通过扩大风机进风口截面积和进风箱有效容积,风机的工作性能达到了设计指标要求。
- This paper analyzes the phenomenon of dongfeng well main fan breathing vibration and find out its reasons,and offers several ways of eliminating the breathing vibration. 分析了小恒山煤矿东风井喘振现象,找出了喘振产生的原因,并给出了几种消除喘振的方法。
- According to the feature of site arrangement of type GAF main fan, the performance testing method which is safe &practicable for GAF main fan is put forward. 根据GAF主通风机装置现场布置特点，提出了针对GAF主通风机安全可行的装置性能测试方案；
- This paper introduces the apparatus used for periodical testing of mining main fan function.This apparatus is simple,easy to carry,operating sparing and high precision of testing. 介绍了自制的煤矿主通风机性能定期测定仪,该仪器简单便携、操作方便、测量精度高。
- Versal demonstration and in the determination of the ventilation reversal rate,the pressure of main fan should not be lowered too much and a certain safety factor should be reserved. 通用示范和决心，通风逆转率的压力，主扇不应该降低太多，有一定的安全系数应保留。
- The main content of this paper introduces that adjusting speed and energy saving is the best plan on the main fan of coal mine,through analyzing the characterful chart of the ventilation system. 通过对通风系统特性曲线和应用实例的分析,说明调速节能是矿井主通风机改造的优选方案。
- This paper introduces the manufacture and design process of main fan wind pressure gives an alarm panalarm,analyses its working principle,function,characteristic and practicing application. 介绍了主通风机风压失常报警装置的设计和研制过程,分析了它的工作原理。
- The Regulation for the Main Fan Noise 风机噪声治理
- Per contra I don't ask her to forget but to remember. 相反，我不是要她忘记，而是要她记住。
- The female is generally drab, the male per contra brilliant. 一般来说雌性是黄褐色的，而雄性是色彩鲜明的。
- Transform of main fan diffuser under mine 矿井主扇扩散器的改造
- Automatic Control on Main Fan Motor 主变风扇电机的自动控制
- This method more effectively suppresses spatial nonstationary and stationary noise than the adaptive null-forming beamformer method by using a rotatable main lobe in the 2-D plane. 该方法克服了自适应零限波束形成只能抑制空间相干噪声的缺点,并得到可在二维平面上旋转的波束主瓣。
- Keywords main fan;actiyator;energy saving; 主扇;调速器;节能;
