margin draft 中文意思是什麼
margin draft
解釋
石緣琢邊-
Directing against state of affairs at present, such as margin of type - selection parameters being selected comparatively large during design stage of air fans for boilers in thermal power plants, the opening degree of air fans in operation being often smaller ( for adjustment of inlet regulator ) or operation at lower revolution speed ( for speed - regulating operation mode ), and efficiency of air fans being lower etc., factors and corresponding measures having to pay attention in margin selection of air fan ' s parameters have been put forward through analysing practical example of retrofitting forced draft fans in one power plant, playing certain positive role for energy - saving and benefit - increasing in power plants
摘要針對目前火力發電廠鍋爐風機在設計選型時參數裕量選取較大，運行時風門開度較小（對入口調節器調節）或低轉速運行（調速運行方式） ，風機效率較低的狀況，通過對某電廠送風機改造實例的分析，提出了在風機參數選擇中的裕量選取需要注意的因素及相關對策，對電廠的節能增效有一定的積極作用。 -
The induced draft fans in guodian shizuishan power - generation co ltd, ningxia hui autonomus region, have excessive large margin, low operation efficiency, and high power consumption
摘要國電石嘴山發電有限責任公司引風機裕量過大，風機運行效率低，電耗高。
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