The gas holdups both in the riser and the downcomer slightly decreased with an increase in superficial liquid velocity.

各級(jí)內(nèi)上升管和下降管的氣含率均隨表觀(guān)液速的增大而減小，但影響程度較小国产欧美一区。

Circulation of cooling medium in closed system is realized through density difference between mixture of gas / liquid in ascending tube and liquid in downcomer, which is defined as natural cycling, and known as Self Circulation for short.

密閉系統(tǒng)內(nèi)的冷卻介質(zhì)依靠下降管的液態(tài)與上升管中汽/液混合物之間的密度差實(shí)現(xiàn)冷卻介質(zhì)循環(huán)的過(guò)程无码秒播成人影视网站大全免费，定義為自然循環(huán)，簡(jiǎn)稱(chēng)自循環(huán)国产视频十一区。

The experimental apparatus consist of the downcomer and L-valve made by the transparent Plexiglas column, 80mm i.d.

本實(shí)驗(yàn)裝置采用內(nèi)徑為 80mm 的壓克力管所制成之下降管和 L-閥人人操人人干人人莫。

Based on the analysis of the fluid flow in the downcomer of an airlift internal loop bioreactor , a turbulent two-fluid model for airlift internal loop was proposed.

在對(duì)氣升式內(nèi)環(huán)流生物反應(yīng)器內(nèi)部流動(dòng)分析基礎(chǔ)上，全面考慮反應(yīng)器下降管中氣泡的并聚破碎99re66精品视频在线观看、氣液兩相間相互作用和滑移等人人操人人干91，建立了能描述反應(yīng)器下降管中復(fù)雜流動(dòng)的CFD數(shù)學(xué)模型。

The experimental apparatus consist of L-valve and downcomer made by the transparent Plexiglas columns, 80 mm i.d.

本實(shí)驗(yàn)采用循環(huán)式流體化床97碰碰碰无码视频，使用內(nèi)徑 80mm 之壓克力圓管日本爱爱高清视频，制成水平長(zhǎng)度為 380 mm 之 L-valve 和長(zhǎng)度為 1120mm 之下降管。

But the standard deviation of aeration downflow was much less than that of aeration horizontal.

在下降管中心通氣時(shí)影音先锋性爱资源站，固體流量下降明顯且氣體易快速進(jìn)入至 L-valve 水平段蝌蚪久久，使得 L-valve 水平段的標(biāo)準(zhǔn)偏差增加。

The numerical results indicated that the mixing time decreases about linearly with increasing current intensity. The mixing time decreases first then increases with increasing current frequency and comes up to its minimum value at 30Hz. Applying the traveling magnetic field to the uptake or downtake when the exciting current intensity is 200 A at 10 Hz, the mixing time can be shortened by 9%~17%. With the operating conditions kept unchanged, shorter mixing time is available if applying the traveling magnetic field to the uptake instead of downtake, and the time can be shortened by 18%~26% if applying the magnetic field to both the uptake and downtake. Moreover, the mixing time decreases with increasing argon blowing flowrate, and the time comes down to its minimum value if the argon blowing flowrate is 1 600 NL/min. After the moment, the mixing time increases with argon blowing flowrate.

計(jì)算結(jié)果表明：混勻時(shí)間隨電流強(qiáng)度的增大而減小免费亚洲爱爱视频，并且近似成線(xiàn)性關(guān)系超碰免费一欧美精品；混勻時(shí)間隨電流頻率的增加先減小后增大，并且在30Hz 時(shí)達(dá)到極小值黄色网址在线观看a；在勵(lì)磁電流強(qiáng)度為200A 自拍偷拍日韩欧美，頻率為10Hz 的條件下，在上升管或下降管施加行波磁場(chǎng)混勻時(shí)間可縮短9%~17%黄色视频在线观看官网；在相同操作條件下，在上升管處施加行波磁場(chǎng)混勻時(shí)間小于在下降管施加行波磁場(chǎng)的混勻時(shí)間黄色视频黄久久；同時(shí)在上升管和下降管施加行波磁場(chǎng)2020亚洲精品极品色在线，混勻時(shí)間可縮短18%~26%；混勻時(shí)間隨吹氬量的增大而減小欧美黄片lv在线播放，在吹氬量為1600NL/min 時(shí)混勻時(shí)間達(dá)到極小值美女被操黄色网站在线观看，吹氬量繼續(xù)增大時(shí)，混勻時(shí)間反而增大美日韩在线A片视频。

The flow field of RH -KTB vacuum degasser in Magang is analyzed with three-dimensional numerical model established by CFX software platform.

利用CFX數(shù)值計(jì)算軟件建立的數(shù)值耦合模型對(duì)馬鋼RH-KTB的流場(chǎng)進(jìn)行了分析一级黄色毛片免费看,99久久综合，得出了包括鋼包美女屄操出淫水视频在线观看、真空室、上升管国内偷拍91、下降管的RH全系統(tǒng)的流場(chǎng)狀態(tài)及其在精煉過(guò)程中的變化規(guī)律黄色a片免费在线播放。

The synthetic gas and ash composition heat transfer and flow in vertical pipe of coal gasifier are simulated and analyzed by the theory and program presented. The temperature、velocity and concentration variations of synthetic gas and ash composition are accomplished. The influences of coal gasifier working condition and vertical pipe parameters on the gas and ash cooling process are discussed. The law of solid-gas two phase turbulent flow and heat transfer is further revealed.

本文還應(yīng)用上述理論和程序免费的三级黄网站，在國(guó)內(nèi)首次對(duì)氣化爐激冷室下降管內(nèi)合成氣和灰份的流動(dòng)和傳熱過(guò)程進(jìn)行了數(shù)值計(jì)算和分析色视频在线视频一区二区，得到下降管內(nèi)合成氣和灰份的溫度、速度和濃度等參數(shù)的變化AV性爱网址，還討論了氣化爐運(yùn)行參數(shù)和下降管結(jié)構(gòu)參數(shù)如氣化溫度欧美日韩免费特级黄片、下降管尺寸、灰份性質(zhì)等參數(shù)變化對(duì)合成氣降溫過(guò)程的影響久久久黄网大全免费无码，進(jìn)一步揭示了下降管內(nèi)氣固兩相的流動(dòng)和傳熱規(guī)律一级片黄色网站一级片。

To achieve this, the or each steam generator pipe (22, 50, 60) has a respective downpipe section (34, 52, 62, 64), which is approximately vertical and through which the flow medium can flow downwards and a respective riser pipe section (36, 54, 66, 68) connected downstream of the downpipe on the flow medium side, which is approximately vertical and through which the flow medium can flow upwards.

為達(dá)到此目的，按本發(fā)明這一根或每根蒸汽發(fā)生器管(22国产精品偷频观看免费、50屄乱伦肏屄、60)分別包括一個(gè)近似垂直布置可被流動(dòng)介質(zhì)沿向下的方向流過(guò)的下降管段(34、5299国产极品粉嫩在线观看、62四虎在线观看成人影院免费下载安装、64)和一個(gè)沿流動(dòng)介質(zhì)流向連接在該下降管段下游的、近似垂直布置并可被流動(dòng)介質(zhì)沿向上的方向流過(guò)的上升管段(36十八岁禁看的黄色网站、54国产欧美日韩永久、66、68)A片不卡在线播放。

down comer：下降管

上升管Riser | 下降管Down comer | 看火孔Peep hole, Periscope hole

DOWM COMER：下降管

DECR/INCR PRESS AT FIX LOAD:: 固定負(fù)荷方式增減壓力 | DOWM COMER:: 下降管 | ECONOMIZER : 省煤器

downcomer：下降管

排污管 blowoff pipe | 下降管 downcomer | 加藥管 chemical feed pipe

distributed downcomer：分散下降管

39.集中下降管 centralized downcomer | 40.分散下降管 distributed downcomer | 41.上升管 riser

distributed downcomer：安全監(jiān)察分散下降管

38.下降管 downcomer | 安全監(jiān)察分散下降管 distributed downcomer | 41.上升管 riser

centralized downcomer：集中下降管

38.下降管 downcomer | 39.集中下降管 centralized downcomer | 40.分散下降管 distributed downcomer

downcomer duct：下降管

無(wú)料鐘爐頂bell-less top | 下降管downcomer duct | 小料鐘small bell

downtake：下降管

downswing 下降趨勢(shì) | downtake 下降管 | downthewind 順風(fēng)航行;順著風(fēng)向

downtake pipe：下降管

downstream facility 下游設(shè)施 | downtake pipe 下降管 | downtime 停役[堆]時(shí)間

down pipe：下降管

Dowel pin 定位銷(xiāo) | Down pipe 下降管 | Download 下載