流氣式計數管 的英文怎麼說

中文拼音 [liúshìshǔguǎn]
流氣式計數管 英文
flow-type counter
  • : 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...
  • : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
  • : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
  • : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
  • : 數副詞(屢次) frequently; repeatedly
  • : Ⅰ名詞1 (管子) pipe; tube 2 (吹奏的樂器) wind musical instrument 3 (形狀似管的電器件) valve;...
  • 計數 : count; tally; counting計數卡 numbered card
  1. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋豎井泄洪洞應用於高水頭、大泄量情況時存在的一些水力學問題進行了研究和探討,取得以下主要成果:一、結合小灣工程導洞改建,對高水頭( 252m ) 、大泄量( 1400m ~ 3 s )條件下旋豎井中的水運動特徵進行了比較全面的測量,包括空腔形態、徑向速分佈及井壁壓強等;二、提出了豎井空腔段螺旋水水力算方法,其算結果與實測值吻合良好;三、利用試驗與算結果,對旋豎井的消能機理進行了探討,對豎井各部分的消能能力有了總體認識;四、對豎井下部消力井的合理井深進行了優化試驗研究,發現消力井合理深度為0 . 9d左右;五、通過試驗研究,歸納出豎井水總摻量估算方法,為導洞排方案的設提供了參考依據;六、在高水頭、大量條件下,豎井空腔段下部速很高,盡螺旋運動引起的離心力可以確保井壁壓強保持正壓,但空化依然較低,因此豎井的空化空蝕始終是工程界關注的重大問題。
  2. After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %

    摘要通過對加熱爐幾種工況進行熱力算、冷態試驗的場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及壁溫度等參的測定,確定將加熱爐爐膛內直燃燒改為旋場燃燒和增加輻射筒,增設煙含氧量分析,可以將燃燒的過剩空從1 . 35減小到1 . 15以下,極好地改善爐膛內的燃燒狀況和對輻射傳熱效果,從而降低排煙溫度45 ,減少加熱爐排煙損失,節約了煤量6 %以上。
  3. It tell us : the abrasive capability of fly ash ; the similar calculation of ash erosion ; the calculation of ash erosion in the tube in turn and tube out of turn ; the reason of tube abrasion for gas flue ; the influence of air parameter for fly ash erosion ; the influence of changing temperature ; the influence of the flue gas composition, etc. next, it advances the solving measure ; reduce the flue gas velocity ; reduce the concentration of fly ash ; responsible construction : replace smooth tube with spiral tube ; use the new material of abrasion ; fuel desulfurization ; reduce so3 of flue gas ; raise flue gas temperature, making it up the dew point ; use the abrasion - resistance material to resist abrasion

    討論了飛灰磨損性能、壁受飛灰沖蝕的近似算、灰粒對順列和錯列的磨損算、煙走廊引起對束的磨損機理、空動力參對飛灰沖蝕的影響以及受熱面壁溫變化及煙成份對飛灰磨損的影響等問題。接著提出了解決的措施:降低平均煙速;降低飛灰濃度;使用鰭片、螺旋翅片代替光;選擇合適的結構及排列方,減少煙中so3的含量;提高受熱面壁溫使之大於煙的露點溫度;採用抗腐蝕材料作受熱面等防腐蝕的措施。
  4. 3 ) the chosen single case turbine is suitable to satisfy the compress rate demand in the project, and if the thimble reheat take the bushing heater as the model, the simple parameter change of the bush and working path can make it reach the demand

    3 )經過選型的單級壓機可以滿足設方案中對壓比的要求,其穩態參也符合設值;同時,若採用與吸熱器類似的套回熱器,則只需要根據實際情況修正套及工質道的幾何參就可以達到設要求。
分享友人