煤的可燃分 的英文怎麼說
中文拼音 [méidekěránfēn]
煤的可燃分
英文
coal combustibles-
Moreover, the system of powdered coal conveying with primary air is the most important tache, whether the distribution of primary air is even or not directly relates to whether the distribution of powdered coal is even or not in all firing implement and nozzles, sequentially directly relates to whether it is hard to take fire, whether the fire is stable, whether there is coking and how about the heat efficiency of the boiler, hi addition, if there is jamming and deflagrate in the system of powdered coal conveying with primary air, severe safety accident can be resulted
良好的煤粉配風是建立合理的爐內空氣動力工況和穩定燃燒的必要條件。而其中一次熱風送粉系統又是最重要的一個環節，一次風配風是否均勻直接關繫到煤粉在各燃燒器和各噴嘴中的分佈是否均勻，從而直接關繫到著火是否困難、火焰是否穩定、局部是否結焦以及鍋爐的熱效率高低。若一次風送粉系統發生堵塞和煤粉爆燃則可能引發嚴重的安全事故。Meanwhile in the condition of high temperature, water vapors can participate in combustion. water gas reaction will happen, which will reduce carbon particle in flame, and reform combustion performance, so improve combustion efficiency. the article developed a kind of technology of water injection into intake ports for 4135g diesel engine, meanwhile designed a suit of water injection system
同時在高溫條件下，水蒸汽參與燃燒，部分水分子與未完全燃燒的熾熱的炭粒發生水煤氣反應，形成可燃性氣體，從而減少了火焰中的炭粒，提高了油的燃燒程度，改善了燃燒狀況，提高了油的燃燒效率。Abstract : we use ordinary industrial boiler to crement the mixed fuel that made of digested sludge s cake and coal. this paper offers datas of compostion about the mixed fuel and situation of actual experiments in motion, obtions the best mixed - proportion of sludge and coal, estimates environmental benefits and economic results produced by this methods
文摘:利用普通工業鍋爐將消化污泥泥餅與煤製成混合燃料進行焚燒處理，提供了混合燃料組份分析及實際運行試驗情況，得出了切實合理可行的泥煤最佳配比，並就產生的社會經濟效益和環境效益進行了評估。Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running
本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點，提出多變量協調控制方案，解決了系統可控性差，難以實現穩定自動運行的問題；在此基礎上，改變以往以煙氣含氧量控制送風的傳統模式，針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重，煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題，應用智能控制理論中的模糊控制技術，結合自尋最優控制的思想，設計了一種模糊自尋優控制器，應用在電站鍋爐送風控制系統上，並闡述了動靜態兩種實現途徑，通過在線優化風煤配比，實現最佳經濟燃燒，切實保障了鍋爐的經濟運行。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。The influence to the boiler burner of air - surrounding - fuei combustion style is aiso researched
介紹了水平濃淡可調燃燒技術，分析了風包粉煤粉燃燒方式對鍋爐燃燒的影響。The main contents are as follows : based on analyzing several kinds of computing models of the boiler efficiency, performance test code for utility boiler is selected as original version and a new boiler efficiency online computing model is presented, which only needing input the coal industrial analytical components and the main operating monitored parameters of the boiler can online compute the boiler efficiencies
本文的主要工作如下:在分析了幾種鍋爐效率計算模型的基礎上，選擇我國電站鍋爐性能試驗規程作為藍本，提出了一種新的鍋爐效率在線計算模型。該模型只需要輸入鍋爐燃用煤的工業分析成分和鍋爐主要運行監控參數就可以在線計算鍋爐效率。This paper introduces the analysis of feasibility, using effect of the gas & coal mixing combustion replaced coal boiler
摘要介紹燃煤鍋爐改造成煤、氣混燒鍋爐的使用效果和可行性分析。Then using kerosene as fuel, oxygen and compressed air as oxidizers, proof - of - principle experiments of pdre were successfully conducted the results show that the measured detonation wave pressures are close to theoretical values it also indicate that using kerosene as the fuel of pdre is feasible
採用航空煤油為燃料，氧氣和壓縮空氣為氧化劑，分別進行了兩相脈沖爆震火箭發動機原理性試驗，所測得的爆震波壓力接近充分發展的理想爆震波壓力，說明採用煤油作為脈沖爆震火箭發動機的燃料是可行的。The rebuild method for boiler body, burning system, oil burning system, chemic water treatment system, circular water system, electricity generated and transported system, coal transported system, dust eliminated system and electric system have been given out. the solid waste, smoke, waste water and the dust prevented method are studied. the benefits for economy, society and environment after rebuilding are analyzed
本文從國際能源發展趨勢及龍鳳熱電廠的目前現狀出發，論述了油改煤工程的必要性和可行性;對油改煤的四種鍋爐轉型方案進行了科學的分析和論證，確定了立式旋風爐改造方案;給出了鍋爐本體、燃燒系統、燃油系統、化學水處理系統、循環水系統、發送電系統、輸煤系統、除灰系統、電氣系統的具體改造方案;研究了固體廢物、煙氣、廢水及煤塵的污染防止措施;分析了改造后經濟效益、社會效益及環境效益。En 26184 - 3 explosion protection systems. part 3 : determination of explosion indices of fuel air mixtures other than dust air and gas air mixtures
防爆裝置.第3部分:除空氣粉末混合物和空氣煤氣混合物以外的可燃混合氣體在空氣中的燃燒指數的測定The result indicates that improvement is helpful to enhance veracit y of calorimeter. when coal combusts in bomb, temperature of measuring system will change. through analysis and comparison graphs of temperature, we can see that they differ from each other with the variation of coal ingredient and there is a flexion in it
通過分析和比較恆溫式氧彈儀測定煤炭發熱量過程中量熱系統溫度變化的曲線，發現量熱系統的溫升曲線普遍存在著一個拐點，這個拐點可以作為煤在過氧條件下著火燃燒方式的判據。Aimed at solving the problem that high content of unburned carbon is unfavourable for the comprehensive ultilization in scale of fly ash, the fundamental principle that separation of unburned carbon from fly ash is theoretically analyzed by wet flotation and dry electro - separation, three factors and two levels orthogonal test for flotation and two factors and three levels test for electro - separation were conducted, furthermore, the primary factors and law affecting separating efficiency in flotation and electro - separation were obtained. the results show that wet flotation can give 7. 34 % of the cleaned coal yield rate, which contains 44. 53 % of ash content and 56. 02 % of separating efficiency, while dry electro - separation can reduce the content of carbon in separated fly ash to 3. 16 % and remove 53. 12 % of carbon from fly ash
針未燃炭含量過高不利對粉煤灰大規模綜合利用的問題，從理論上分析了粉煤灰濕法浮選和干法電選分選未燃炭的基本原理，進行了三因素二水平正交浮選試驗和二因素三水平的正交電選試驗研究，得到了影響浮選和電選分選效果的主要因素及其規律.試驗表明:採用濕法浮選法可獲得精煤產率為7 . 34 % ，灰分為44 . 53 % ，分選效率為56 . 02 %的分選效果；採用干法電選，選后粉煤灰的含碳量可降到3 . 16 % ，脫碳率達53 . 12 %Abstract : aimed at solving the problem that high content of unburned carbon is unfavourable for the comprehensive ultilization in scale of fly ash, the fundamental principle that separation of unburned carbon from fly ash is theoretically analyzed by wet flotation and dry electro - separation, three factors and two levels orthogonal test for flotation and two factors and three levels test for electro - separation were conducted, furthermore, the primary factors and law affecting separating efficiency in flotation and electro - separation were obtained. the results show that wet flotation can give 7. 34 % of the cleaned coal yield rate, which contains 44. 53 % of ash content and 56. 02 % of separating efficiency, while dry electro - separation can reduce the content of carbon in separated fly ash to 3. 16 % and remove 53. 12 % of carbon from fly ash
文摘:針未燃炭含量過高不利對粉煤灰大規模綜合利用的問題，從理論上分析了粉煤灰濕法浮選和干法電選分選未燃炭的基本原理，進行了三因素二水平正交浮選試驗和二因素三水平的正交電選試驗研究，得到了影響浮選和電選分選效果的主要因素及其規律.試驗表明:採用濕法浮選法可獲得精煤產率為7 . 34 % ，灰分為44 . 53 % ，分選效率為56 . 02 %的分選效果；採用干法電選，選后粉煤灰的含碳量可降到3 . 16 % ，脫碳率達53 . 12 %Biomass fuel is used as reburning fuel to deoxidize no is first experimental studied in this article. conclusions can be drawn from the experimental results that under certain conditions, nox deoxidized efficiency can achieve 50 % - 70 %. compared with coal, biomass volatilization and combustion time is short, so boiler combustion efficiency can be guaranteed
本文首次進行了生物質燃料作為再燃燃料還原no的試驗研究，研究表明生物質燃料再燃還原no可以取得非常好的效果，在一定的條件下可以達到50 - 70 ，生物質燃料的揮發分析出和燃燒的時間都要比煤粉短，用作再燃燃料可以有效的保證鍋爐的效率。Standard test method for determination of the red dye concentration and estimation of saybolt color of aviation turbine fuels and kerosine using a portable visible spectrophotometer
用便攜式可視分光光度儀評估航空渦輪機燃料和煤油的賽波特色彩和測定紅色染料的濃度的標準試驗方法The hf of different chars indicates that decreasing coal particle size and increasing oxygen density lead to increased burn out characteristic of chars. a mathematic model concerns with pyrolysis, combustions of volatile and char, reactions between volatiles and char with nox is developed. the experimental reburn processes have been simulated
利用hf對再燃過程中煤焦燃盡性能的變化規律進行了分析，發現在相同的反應時間內，煤粉越細小、再燃區的過量空氣系數越大，煤焦中殘留的可燃質份額就越少，而且殘留的可燃質越容易燃盡。Combustible gas detectors part 4 : point type detectors for combustible man - made gas
可燃氣體探測器第4部分:測量人工煤氣的點型可燃氣體探測器Combustible gas detectors part 6 : portable detectors for combustible man - made gas
可燃氣體探測器第6部分:測量人工煤氣的便攜式可燃氣體探測器Combustible gas detectors part 5 : self - contained detectors for combustible man - made gas
可燃氣體探測器第5部分:測量人工煤氣的獨立式可燃氣體探測器分享友人