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- main fan' s flesible 主扇風機
- Development of Main Fan in Taiping Mine of Panzhihua Coal Group Co., Ltd. 攀煤集團太平礦主通風機的研製。
- The opposite direction airflow in Eastern Main Shaft of Certain Mine is caused by the main fan stoping work to undergo repair. 某礦東主井因停產檢修、主扇停運引起了主井風流反向。
- 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. 通過擴大風機進風口截面積和進風箱有效容積,風機的工作性能達到了設計指標要求。
- 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. 分析了小恆山煤礦東風井喘振現象,找出了喘振產生的原因,並給出了幾種消除喘振的方法。
- 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. 根據GAF主通風機裝置現場布置特點，提出了針對GAF主通風機安全可行的裝置性能測試方案；
- 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. 介紹了自製的煤礦主通風機性能定期測定儀,該儀器簡單便攜、操作方便、測量精度高。
- 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. 通用示範和決心，通風逆轉率的壓力，主扇不應該降低太多，有一定的安全係數應保留。
- 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. 通過對通風系統特性曲線和應用實例的分析,說明調速節能是礦井主通風機改造的優選方案。
- 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. 介紹了主通風機風壓失常報警裝置的設計和研製過程,分析了它的工作原理。
- The Regulation for the Main Fan Noise 風機雜訊治理
- Transform of main fan diffuser under mine 礦井主扇擴散器的改造
- Automatic Control on Main Fan Motor 主變風扇電機的自動控制
- Keywords main fan;actiyator;energy saving; 主扇;調速器;節能;
- main fan surface corrosion prevention 主扇表面防腐
- The main impediment to growth is a lack of capital. 影響發展的主要障礙是缺乏資本。
- Keywords monitor;main fan;alarm; 監測;主要通風機;報警器;
- the frequency conversion and tirning of main fan 主風機變頻調速
- Crowds thronged the main square of the city. 城裡的大廣場上擠滿了人群。
- My main concern is with the W's and L's. 我關注的是一場比賽的輸贏。
