moving solid bed 中文意思是什麼
moving solid bed
解釋
固體粒子移動床-
In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation
針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用 -
It was found that the ultra - fine powder can flow smoothly in a spouted bed with a draft tube under some sorts of design parameter and operating condition, thus a new effective method to improve fluidization quality of the ultra - fine powders is obtained ; at higher supplied gas velocity, an increase in the solid circulation rate is observed ; the extent of the distance between the nozzle and the draft tube inlet result in the promotion of the solid circulation rate ; the solid circulation rate increase with increasing the draft tube diameter or the bed mass ; the gas bypassing is nearly zero in the present work ; and the solid flow in the annulus is observed as a moving bed
結果表明：在一定的床層結構和操作條件下，超細粉可以在導向管噴動床中實現平穩流化，從而為改善超細粉的流化質量提供了一種有效的新方法；固體循環速率與噴動氣流量、導向管直徑、導向管底部與噴嘴出口間距以及床層裝填量成正比；氣體則基本上不存在「旁路」現象；環隙區中的顆粒流動表現為一移動床特徵。 -
Until tonight, the wife only then uses the holiday the eve, the room game bed and the living room white solid wooden bed exchange, the daughter finally evening may rest in the quite stable bed, believed quite is also perfect regarding hers back development, moreover installs all around in protects the pad, also regarding daughter when moving about compares the security, as for does not have the high card in bed pole dangerous play, only is did not know many fences the bed, regarding the daughter in the vision had not known whether has the restless psychological phenomenon, must observe several days to be able to know
直到今天晚上，老婆才利用假日的前夕，將房間的游戲床和客廳的白色實木床互換，女兒終于晚上可以睡在比較穩定的床，相信對於她的背部發展也比較健全，而且加裝在四周的護墊，也對于女兒在動來動去時比較安全，不至於發生大腿卡在床桿中的危險動作，只是不知多了圍墻的床，對于女兒在視覺不知是否有不安的心理現象，必須觀察幾天才能知道。 -
In this thesis, autoregressive moving average ( arma ) models are applied to identify the flow regimes of two - phase flow. experiments are carried out on the facilities include gas - solid fluidized bed and gas - liquid two - phase flow pipelines. the results show that the methods are effective
本文基於arma （ autoregressivemovingaverage ）模型，對氣固流化床和氣液兩相流系統進行了分析並進一步對其流型進行了辨識，得到了一些有益的結論。
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