gas riser 中文意思是什麼

gas riser 解釋
煤氣豎管；煤氣立管
  • gas : n （pl gases ）1 氣，氣體，氣態 〈cf fluid; solid〉 2 可燃氣，煤氣，沼氣；【礦物】瓦斯。3 【軍事...
  • riser : n. 起來的人；反抗者，起義者；【航空】起飛裝置；【機械工程】（鑄件）冒口；上升裝置；【建築】（梯級的）起步板，登板。 an early [a late] riser 起得早[晚]的人。
  1. Study on conversion of coker gas oil by two - stage riser fluid catalytic cracking

    焦化蠟油兩段提升管催化裂化研究
  2. Petroleum and natural gas industries - design and operation of subsea production systems - completion workover riser systems

    石油和天然氣工業.水下採油系統的設計和操作.完井修井提升管系統
  3. Petroleum and natural gas industries - drilling and production equipment - marine drilling riser couplings

    石油和天然氣工業.鉆井和生產設備.海上鉆井隔水導管聯接器
  4. Petroleum and natural gas industries - drilling and production equipment - marine drilling riser couplings iso 13625 : 2002 ; english version en iso 13625 : 2002

    石油和天然氣工業.鉆井和生產設備.海洋鉆井隔水導管
  5. For sand, glass bean, quartz sand and pvc, pressure fluctuations were measured at different conditions. furthermore, statistics analysis, power spectral density ( psd ) analysis and chaos analysis of pressure fluctuations in gas - solid cfb were conducted. an investigation of the effect of circulating solid flux, superficial gas velocity, height from riser bottom and particle property on the parameters ( e. g

    本文測定了河砂、玻璃珠、玻璃砂和pvc四種顆粒在不同固體循環量、不同表觀氣速、不同軸向高度下的壓力波動，進而對氣固循環流化床壓力波動時間序列進行了統計分析、功率譜分析和混沌分析。
  6. 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。
  7. On the basis of piv measurement of the gas solid velocity field, the size and the numbers of particles are measured by newly developed image processing software. the results are identical with the variation of the factual size of particles. by the viable datum, the average size of particles in the cross section is calculated in the dilute phase area of circulating fluidized beds ( cfb ) riser

    在piv測速系統基礎上，通過二次開發的圖像識別軟體，實現不同工況下各截面顆粒粒徑分佈的測量，測量結果基本反映出實際顆粒粒徑變化，證明了該方法的可行性，進一步獲得了循環流化床稀相區顆粒粒徑分佈特性。
  8. Simulating results reveal that hydrodynamics of catalysts in riser reactor is very complex due to the effect of injection and catalysts backmix dramatically near the nozzle, reaction products unevenly distributie along the riser height, there exists apparently temperature gap between gas - phase and solid - phase near the nozzle and the temperture of two phase is nearly equal at middle - top part

    模擬結果表明，由於原料油射流的影響，提升管反應器內催化劑顆粒的流動特徵非常復雜，在噴嘴附近的催化劑顆粒存在明顯的滑落返混；裂化產物濃度沿提升管存在非均勻分佈；氣粒兩相間溫差在噴嘴附近顯著，在中上部氣粒兩相溫度幾乎相等。
  9. Similarity of gas - solid two - phase flow behavior in cfb riser

    提升管中氣固兩相流動行為的相似特性
  10. And when the solid concentration ( cs ) is 0. 75 %, the gas holdup in riser reaches the highest value. 2

    固含率在0 . 75左右時上升區氣含率最高； 2
  11. 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。
  12. Our work is only an attempt about the study on the application of piv techniques and numerical simulation in the dense gas solid flow of the circulating fluidized beds. the results show that the accuracy and efficiency of the piv techniques and numerical simulation method on the test and prediction of the hydrodynamics of the gas solid in circulating fluidized beds riser

    本文的研究工作是對piv技術應用於循環流化床內氣固多相流動特性測試和數值模擬的嘗試，所取得的結果表明piv技術和數值試驗方法在測試和預測氣固多相流動特性方面的準確性和有效性。
  13. The denoising results about solids holdup and pressure fluctuation signals of gas - solids cfb riser indicate that wpa denoising method based on fractal theory can efficiently differentiate the noises from the solids holdup signals, and the denoised effect is much better than that by filter method based on the fourier transform

    氣固循環流化床提升管的顆粒濃度和壓力波動信號的去噪結果表明，基於分形理論的小波包去噪方法能有效地區分真實信號和噪聲信號，去噪效果優于傳統的傅立葉變換的濾波方法。
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