濃相流化床 的英文怎麼說
中文拼音 [nóngxiāngliúhuàchuáng]
濃相流化床
英文
dense-phase fluidized bed- 濃 : 形容詞1. (液體或氣體中所含的某種成分多; 稠密) dense; thick; concentrated 2. (程度深) (of degree or extent) great; strong
- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 床 : i 名1 (供人睡覺的傢具) bed; couch 2 (像床的器具、地面) something shaped like a bed Ⅱ量詞(用...
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Abstract : in the internal circulating fluidized bed, there exist the moving zone, fluidizing zone and heat transferring zone with different fluidized air velocities. the convection heat transfer coefficient of immersed tube in the heat transferring zone is impacted by the velocity of the moving zone nearby and its data and change trend are obviously different with those of the common bubbling bed. the maximum heat transfer coefficient is evidently higher than that of the bubbling bed. as the bed materials have not been fluidized in the heat transfer zone, the coefficient has increased highly. the curve of that changes gently, feasilble to control the combustion intensity in the fluidizing zone
文摘:垃圾焚燒系統中,內旋流流化床存在不同布風速度的移動區、流動區和換熱區,處于換熱區的埋管的對流換熱系數受附近流動區氣流參數的影響,其變化趨勢及數值大小與普通鼓泡型流化床之間有明顯不同:最大的對流換熱系數明顯高於鼓泡床;換熱區尚未流化時,對流換熱系數已經大幅提高;整條換熱曲線的變化比較平緩,易於流化床濃相床內換熱。The experimental analysis results show that the gas and solids phases local flow structure of cfb riser are composed of dilute phase ( continuous phase ) and dense phase ( discontinuous phase, cluster )
實驗數據分析表明,循環流化床提升管中氣、固兩相的局部結構是由稀相為連續相、濃相(顆粒聚集物)為分散相組成的。In this paper, through the cfd modeling of the ash - agglomerated fluidized bed gasifier, the gas molar concentration distributions in the bed with the influences of the oxygen flow rate from the central nozzle, the steam flow rate from the distributor and the pressure of the bed are studied
摘要通過cfd模擬了灰熔聚流化床氣化爐,考察了操作條件包括中心管氧氣量、分佈板水蒸氣量以及操作壓力對流化床氣化爐的氣相濃度分佈的影響。Research on bubble behaviors in fluidized bed with dense solid - rich phase
高密度濃相流化床內氣泡行為的研究Abstract : by a large number of trial and related project experiences, the author can draw a conclusion that organic wastewater can gain better processing efficiency before it flows into the biological fluidized beds with lower sludge concentration by coal fly ash pretreatment and high efficiency jet aerator
文摘:通過大量試驗和相關工程體會得出:有機廢水在進入較低污泥濃度的生物流化床之前,通過粉煤灰的預處理,再配以高效射流曝氣器,能有較好的處理效果。In this paper, the two - phase flow behaviors of gas - solid circulating fluidized bed have been first studied by analysing experimental data. then, based on fractal theory wavelet package analysis ( wpa ) de - noising method was used to denoise solids concentration and pressure fluctuation signals. the solids concentration signals have also been investigated by wavelet multi - resolution analysis and wavelet package decompose, contributed to disclose the non - uniform flow structures of gas - solids phase
然後將基於分形理論的小波包消噪方法用於顆粒濃度和壓力波動去噪,並對氣固流化床中的顆粒濃度信號進行了小波多分辨分析和小波包多尺度分解,從新角度揭示了氣固流態化系統的非均勻氣固兩相流動結構。However, the effect of high particle concentration on particle collision should be taken into account in the dense gas - solid two - phase flow. at the same time, gas turbulence should be taken into account in the simulation of gas flow in dense gas - solid two - phase flow
然而,在高顆粒濃度下顆粒碰撞對的確定需要考慮高顆粒濃度存在的影響,同時在高顆粒濃度流化床氣固兩相流動中,需要考慮氣體粘性的作用。In this paper, a new type evaporator, inert particle fluidized bed evaporator, which is adapted to tea liquid infusion evaporating. we designed and built an inert particle fluidized bed evaporator
本文針對汽?液?固三相流化床蒸發器的特點,把該種蒸發設備應用於綠茶浸提液濃縮蒸發過程。Inert particles can prevent and clean the fouls. this kind of evaporator fit for the condensing of the glucose solution and it maybe used broadly in foodstuff field in the future
汽-液-固三相循環流化床蒸發器適用於葡萄糖溶液的蒸發濃縮,在食品工業中具有一定的應用前景。In this paper, we applied the vapor - liquid - solid three - phase circulating fluidized bed evaporator to condense glucose solution considering its advantage. in the experiment, we changed the parameters such as evaporation temperature, difference in temperature of the fluid heating and heated, liquid flux, liquid thickness and the ratio of inert particles to analyze and study this kind of equipment ' s heat transfer properties in different operational conditions
通過改變蒸發溫度、傳熱溫差、料液流量、料液濃度以及惰性粒子的體積分率等參數,研究了其在不同操作條件下的傳熱性能,並給出了汽-液-固三相循環流化床蒸發器沸騰傳熱的數學模型,模型預測值與實驗值吻合較好。The work is mainly on numerical simulation of dense gas - solid two phase flow and the combustion and pollutant emission processes of circulating fluidized bed and w - shaped furnace applied by power plant
本文主要對高濃度氣固兩相流和電站鍋爐中的循環流化床和w爐內的燃燒和污染物排放過程進行了較為詳細的數值模擬研究。Our work is only an attempt about the study on the dense gas - solid flow and combustion technique of cfb and w - shaped furnace. the results testify the accuracy and efficiency of the numerical simulation method ( or computer aided test method ) on the prediction and validation of the engineering flow and combustion problems
本文的工作是對高濃度氣固多相流研究和流化床和w爐燃燒技術研究的嘗試,所取得的結果表明數值試驗方法在預測和驗證工程流動、燃燒問題方面的準確性和有效性。We successfully apply the two - fluid model ( tem ) and kinetic theory of granular flow studying the two dimensional dense gas - solid flow characteristics in the large scale circulating fluidized beds and the cold experimental system with piv. the results of simulation are in accord with others " simulation and experimental results. in the end, we make the three dimensional simulation for the cold cfb riser, which is closer to the factual operation and this experimental results
在對高濃度氣固兩相流的研究中,根據fluent軟體現有的條件和解決工程實際問題的需要,採用單氣固相雙流體歐拉模型,採用模擬紊流固粒流中普遍接受的方法「顆粒流的運動理論( kinetictheoryofgranularflow ) 」 ,對大尺度循環流化床進行了二維數值模擬,與他人數值模擬結果和實驗結果進行了對比,檢驗模型的準確性。On the base of the study of dense gas - solid flow, we make full - scale numerical simulation on the combustion and pollutant emission processes of the 75t / h circulating fluidized bed ( cfb ) which is developed by our institute. we draw the conclusion on the characteristics of flow field, particle track, temperature profiles and species profiles. we also study the characteristics of coal combustion and nox formation and the interactive influence between them
在對高濃度氣固兩相流動的系統研究基礎上,針對我們熱能所研製開發的75t h循環流化床熱電氣三聯供裝置,首次對于流化床燃燒爐內的燃燒和污染物排放進行了較全面的數值模擬,得出了爐內的流場、顆粒軌跡場、溫度場和組份場,研究了煤粉燃燒特性和氮氧化物的排放特性以及影響它們的因素。分享友人