過剩煤氣 的英文怎麼說
中文拼音 [guòshèngméiqì]
過剩煤氣
英文
excess gas-
Chapter n analyzes the present urban gas civil use in wisco, and points out that the major problems are miscalculation of fluctuating needs of users, rigid maximum production, excess reserve, and redundant pipe net transport. all these lead to the conclusion that urban gas which transcends the users needs has increased purification and transport cost
第二章，分析了武鋼民用煤氣輸配系統的現狀，對用戶動態需求估計不準，按照最大能力組織生產，儲備能力過剩，管網輸送能力富餘；指出了現行生產工藝中存在的問題，超出用戶需求的煤氣增加了凈化成本和輸送成本。This article aims at the boiler ' s problems in operation : 1 ) under nominal load, the smoke temperature at the outlet of hearth reaches 1200, far more exceeds 1050 the original designed temperature. this will always result in slag inside boiler and the temperature of overheater ' s pipe superheat, so that boiler cannot take nominal load and all these influence boiler ' s nomal operation heavily, 2 ) this article also studied the reason why the assistant oil becoming necessary when coal changes. during the nomal operation, many factors ( makeup of combustor and its disposal, smirch and encrust of water wall, excessive air coefficient, temperature of primary air, coal type and density of coal dust ) can deviate the designed working conditions, then affect the boiler ' s nomal operation
本文針對該鍋爐在實際運行中存在的問題：在額定負荷下，爐膛出口超溫、低溫段過熱器前煙溫高達936 ，遠遠超過815的設計值；噴燃器四周水冷壁結焦嚴重，過熱器管壁溫度超標，無法帶上額定負荷；甚至有時因燃煤質量的變化，必須投油助燃的嚴重情況進行了分析研究。在實際生產過程中，燃燒器的結構、布置，水冷壁的粘污、結垢，過剩空氣系數、一次風溫、煤種及其濃度變化等許多因素都會偏離鍋爐的設計工況，從而影響爐內的傳熱和燃燒，造成爐膛出口超溫、水冷壁結渣等問題。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計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定，確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒，增設煙氣含氧量分析，可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下，極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果，從而降低排煙溫度45 ，減少加熱爐排煙損失，節約了煤氣量6 %以上。Via the analysis of heat balance computation model and the computation of online heat balance for industrial coal boiler, this dissertation researched overall input heat, efficient utilized quantity of heat, heat losing of discharge flue gas, heat losing of chemistry and mechanism incomplete combustion, heat losing of dispelling heat of boiler, heat efficiency, air superfluous coefficient, wind speed, wind quantity, computation of primary air circle cutting and whose influence on boiler combustion efficiency
本文通過對工業煤粉鍋爐熱平衡計算模型的分析，利用在線熱平衡計算，研究了總輸入熱、有效利用熱量、排煙熱損失、化學不完全燃燒熱損失、機械不完全燃燒熱損失、鍋爐散熱熱損失、熱效率、空氣過剩系數、風速、風量及一次風切圓計算以及這些因素對鍋爐燃燒效率的影響。Aiming at the coal under the building, rail and water, difficultly - mined coal and the side of strip mine, hardly mined, but it is utilization for the ucg study on field test of air coal gas, water coal gas, rich oxygen coal on the side of strip the side of strip mine mine of fu xin, using the ucg for the mineral well, getting the method for building stove of ucg, obtain different coal gas group and heat value for the different gasification craft high volatile, multiple thin coal seams on the side of strip mine are suitable to underground coal gasification to produce middle low heat value gas
摘要針對「三下」煤層，難採煤層，復雜煤層以及露天邊坡剩餘的煤炭資源，並工開采不經濟或難以開采，可利用煤炭地下氣化將這些殘余資源得以回收利用，試驗利用礦井式煤炭地下氣化方式，對阜新礦露天邊坡進行了空氣煤氣、水煤氣、富氧煤氣的工業性試驗研究，通過煤炭地下氣化工業性試驗，得出在露天邊坡礦井式氣化建爐方式，不同氣化工藝的煤氣組分，熱值。We have our clothes, some more splendid than others, - this is our credit ; but when a man dies he has only his skin ; in the same way, on retiring from business, you have nothing but your real principal of about five or six millions, at the most ; for third - rate fortunes are never more than a fourth of what they appear to be, like the locomotive on a railway, the size of which is magnified by the smoke and steam surrounding it
但當一個人死了以後，他就只剩下了皮肉。同樣的，當退出商場的時候，您最多也不過只剩下了五六百萬的真本錢，因為三等富翁的實際資產決不會超過他表面上看上去的四分之一。這就象鐵路上的火車頭一樣，由於四周有煤煙和蒸氣包圍著它的體積，才顯得特別龐大。分享友人