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burn
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  燃烧
    Application of the Fuzzy Control to the Burn Control of the Industrial Boiler
    模糊控制在工业锅炉燃烧自控中的应用
短句来源
    Deduction of non complete Burn Equation with Combustible Gas CO、H 2 and CH 4
    包括可燃成分CO、H_2、CH_4的不完全燃烧方程式的推导
短句来源
    Modelling and simulation for inferential control of boiler burn process
    锅炉燃烧过程的推理控制建模及仿真实验
短句来源
    COMBUSTION TESTING FOR RETROFITTING OIL-FIRED BOILER NO.2 AT MAOMING THERMAL POWER PLANT TO BURN WATER-COAL SLURRY
    茂名热电厂2号燃油炉改烧水煤浆的燃烧试验
短句来源
    Optimization and Lean Burn of LPG for Small SI Engine
    LPG用于小型点燃式发动机的性能优化与稀薄燃烧
短句来源
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  “burn”译为未确定词的双语例句
    Reasons Analysis and Treatment of Large Span and Double Support Primary Fan Bearing Burn Out
    大跨度双支承一次风机轴承烧坏原因分析及处理
短句来源
    Experimental Study of the Performances of a EFI Lean Burn 5 Valve CA1102Q S.I. Engine
    电控燃油喷射稀燃五气门CA1102Q汽油机试验
短句来源
    Influence of Injection Timing on Performance of a CA1102Q Five-Valve Lean Burn SI Gasoline Engine
    喷油定时对CA1102Q5气门汽油机稀薄燃烧性能影响的试验研究
短句来源
    The Economical Effective Route of Cleaning Combustion in Industrial Boiler-to Burn Washed Coal Combined Boiler Transformation
    燃用洗选煤与锅炉改造配合是实现工业锅炉清洁燃烧的经济有效途径
短句来源
    Analysis of Technologic programs of Reducing NO_X Emissions in Lean Burn Gasoline engine
    降低富氧条件下汽油机NO_X排放技术方案分析
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  burn
In order to investigate the pyrolytic characteristics of the burning residue of fire-retardant wood, a multifunctional fire-resistance test oven aimed at simulating the course of a fire was used to burn fire-retardant wood and untreated wood.
      
The grinding burn mechanism of high-temperature alloy is unveiled and the feasible grinding parameters to avoid burning are analyzed.
      
The COS-AB from burn wards showed the identical PFGE pattern which was distinguished from the genotype of COS-AB in other departments, mainly surgical systems.
      
Power plants in China have to burn blended coal instead of one specific coal for a variety of reasons.
      
Selective catalytic reduction of NOx from exhaust of lean-burn engine over Ag-Al2O3/cordierite catalyst
      
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Ⅰ. The Coal Classification Method for the Chinese Coals. (а) The Ultimate Analysis Graphical Coal Classification Method-Use the volatile Mateer on Combustible basis Vr as abscissa and the simplified coal characteristic coefficient as ordinate. (б) Proximate Analysis Graphical Coal Classification Method-Use the volatile matter on combustible basis VT as abscissa and the fixed carbon on ash free basis F. C.w Ⅱ. The Ranks (kinds) of the Chinese Coals-By using the two above mentioned graphi- ed coal classification...

Ⅰ. The Coal Classification Method for the Chinese Coals. (а) The Ultimate Analysis Graphical Coal Classification Method-Use the volatile Mateer on Combustible basis Vr as abscissa and the simplified coal characteristic coefficient as ordinate. (б) Proximate Analysis Graphical Coal Classification Method-Use the volatile matter on combustible basis VT as abscissa and the fixed carbon on ash free basis F. C.w Ⅱ. The Ranks (kinds) of the Chinese Coals-By using the two above mentioned graphi- ed coal classification methods, the Chinese coals available with ultimate analysis or proximate analysis data can be easily classified into the following different kinds as known internationally: -anthracite (A), semi-athracite (T), semi-bituminous ( C), coking coal (k), steaming fat coal ( ), gas coal ( ), long flame (candle) coal ( ) and lignite coal ( ), as tabulated on Table - 4. Ⅲ. The Properties of Chinese Coals. (а) The composition of the Chinese Coals - with the exception of ash and sulfur which vary irregularly, the other constituents. like carbon, hydrogen, oxygen, nitrogen and analytical moisture vary regularly with the variation of the vodatile matter on combustible basis V in the different stage of carbonization. (б) The Reltation between the ultimate analysis and proximate analysis for the Chinese Coals- In the bituminous coal region, the data of proximate analysis can be transferred to the ultimate analysis proximately according to the straight line formula, as for the bituinous coal. The other constituents like H, O and N, S can also be obtained by the straight line formulas as shown on the graph. (в) The Heating Value of Chinese Coals - The Heating Value of Chinese Coals; when only ultimate analysis data is available, can be checked by using the Mendeleef formula; when Duly the proximate analysis data is available, the heahng value can be checked by the Goutal Formula. When illers is only the ultimate data without any bomb calorimeter, the heating value can be obtained by the following empirical formulas:(p) The Coking Property of the Chinese Coals---The ebbing property can be represent6d by' foe coking coeffident as suggested by the author, the ratio of hydrogen to oxygen on combustible. basis (%). With the exception of anthraede, semi--anthracite and liana, ' which will have the ash in powderform, when burned, the other bituminous coals like (1) Semi--bituminous and part of the coking coal, when Vr- 16 ~ 24 7o and (%) = 0.90 1 .8, the ash after combustion will become softly caked; (2) for coking coal, Steaming fat Hr coal and gas coal, when Vr~25-47 and M~0. 58-1 .2, the ash after combustion will become strongly caked; (3) FOr gas coal and long flame coal, when Vr~31 ~46 ac and aam: =0. 34-0. 50, the ash will become softly caked. f {if) The Combustion Characteristics of Chinese Coals -- The combustion characteristics vary with the kind of coal. Which kind of coal is suitable for what kind of industrial use and which type of furnace is suitable for burning what kind' of 'coal,. all depends uPOn the rank, composition and combustion charact6rislics of the coal. F6, economy, it is necessary >to burn the poor quality coal nearby and the problem of caking inside the furnace resulting from poor quality coal muSt be properly solved. ' (in) The ash Fusion point of Chinese Coals -- The ash composition affects the fusion point. greatly. The change in ash composition will of feet the fusion poillt. Thus increasing the met,ilie oxides in the coal ash liko FeZO3, CaO and MAO ate. will raduce the fusion point and will fadlitate the ash disposal in fluid form. On the other hand, whother increasing 'the kaolin (fire clay) in the ash composition will raise the ash fusion point or not is a problem worthy for further investigation and research. ' '. It may be reaseonably assumed as suggested by the auther that the coal ash is mainly consisted of kaolin (Al.O, ZFios ZHZO) + free SiOZ + different motailic odddes (FavOr, CaO and MgO, etc ). When coal is burned, the free SiOZ will combine with some of the metallic

(Ⅰ)中国煤的分类法 (а)元素分析图解分类法─—横坐标采用纯燃质挥发物百分数V而纵坐标则用简化特性系数 (б)实用分析图解分类法─—横坐标采用纯燃质挥发物百分数V而纵坐标则采用去灰定炭百分数F.C。 (Ⅱ)中国煤的分类类别 根据上列二个新的图解分类方法,中国煤在有元素分析或实用分析数据后,即可从图解上求得分类类别,中国煤按照国际间一般分类标准,可以分为无烟煤,瘠煤、蒸汽结焦煤,炼焦煤,蒸汽肥煤,瓦斯煤,长火焰烟煤,褐煤等,已列在中国煤突用分析数据表的最后一项。 (Ⅲ)中国煤的特性 (а)中国煤的成分─—中国煤的成分,除灰分与硫磺的变化无规律外,其他成分如碳素,氢素,氧素,氮素,分析水分等的变化极有规律,此外煤的工作质水分则受外界气候影响而变化,但吸收水分(即分析水分)划与煤的含氧量有失,而变化很有规律。 (б)中国煤的元素分析与实用分析的关系─—中国煤的实用分析数据,在烟煤区域,可以按照直线关系公式,转变力元素分析的近似数据。例如其他成分如H,O及N S等亦可从直线公式(如图上所示)求得平均数值。 (в)中国煤的发热量──中国煤的发热量,若有元素分析数据,则应用门捷列夫公式来计算核对;若仅有实用分析数据,则...

(Ⅰ)中国煤的分类法 (а)元素分析图解分类法─—横坐标采用纯燃质挥发物百分数V而纵坐标则用简化特性系数 (б)实用分析图解分类法─—横坐标采用纯燃质挥发物百分数V而纵坐标则采用去灰定炭百分数F.C。 (Ⅱ)中国煤的分类类别 根据上列二个新的图解分类方法,中国煤在有元素分析或实用分析数据后,即可从图解上求得分类类别,中国煤按照国际间一般分类标准,可以分为无烟煤,瘠煤、蒸汽结焦煤,炼焦煤,蒸汽肥煤,瓦斯煤,长火焰烟煤,褐煤等,已列在中国煤突用分析数据表的最后一项。 (Ⅲ)中国煤的特性 (а)中国煤的成分─—中国煤的成分,除灰分与硫磺的变化无规律外,其他成分如碳素,氢素,氧素,氮素,分析水分等的变化极有规律,此外煤的工作质水分则受外界气候影响而变化,但吸收水分(即分析水分)划与煤的含氧量有失,而变化很有规律。 (б)中国煤的元素分析与实用分析的关系─—中国煤的实用分析数据,在烟煤区域,可以按照直线关系公式,转变力元素分析的近似数据。例如其他成分如H,O及N S等亦可从直线公式(如图上所示)求得平均数值。 (в)中国煤的发热量──中国煤的发热量,若有元素分析数据,则应用门捷列夫公式来计算核对;若仅有实用分析数据,则可用古?

Pulverized-coal-fired precombustion chamber is a kind of new coal burning equip- ment. By using two precombustion chambers in the boiler SHF-20/13 made by the peking Boiler works,the volumetric heat releasing rate of the furnace has attained the value of 240 x 103 kcal/m3h, the dimensions of the boiler are greatly reduced, the weight of the steel used is reduced about 35 percent. After careful observations in a series of experiments, the following improvements are made: modification of the construction...

Pulverized-coal-fired precombustion chamber is a kind of new coal burning equip- ment. By using two precombustion chambers in the boiler SHF-20/13 made by the peking Boiler works,the volumetric heat releasing rate of the furnace has attained the value of 240 x 103 kcal/m3h, the dimensions of the boiler are greatly reduced, the weight of the steel used is reduced about 35 percent. After careful observations in a series of experiments, the following improvements are made: modification of the construction of the chamber using Ⅱ and Ⅲ type chambers; using a new swirler of smaller attack angle; adding a mixing plate in the duct to make the fuel air mixture more uniform. When some of bituminous coal is used, these improvements make the operation of the precombustion chamber rather reliable. The duration of trouble free operation has attained more than 15 days, without the trouble encountered in the experiment, the duration of operation might be still longer. The experiments show that this kind of precombustion churner is very prospective.

煤粉予燃室是一种新型的煤粉燃烧方式。北京锅炉厂制造的 SHF-20/13型锅炉在 采用煤粉予燃室后,锅炉炉膛体积热负荷高达 240x103[大卡/米3时],锅炉外形尺寸大 为缩小,约可节省钢材35%。 煤粉予燃室经过改进,采用了Ⅱ 、Ⅲ型予燃筒,35°平面叶片旋流器并加装风粉均 匀板,在燃烧灰熔点高的烟煤时,已可连续运行15天以上。试验研究说明煤粉予燃室 是可能很有前途的。

According to experience in Chekiang within the past seven years, it is clear that over-flow type fluidized bed furnace is a rational type for burning low calorific value and low grade stone coal.in this article, a general description of main feature of the aerodynamic choracteristics of stone coal boiler with fliudized bed toqether with a brief analysis for ignition and burning process is given causes of low efficiency for burning stone coal in fluidized bed furnace and ways to decrease loss...

According to experience in Chekiang within the past seven years, it is clear that over-flow type fluidized bed furnace is a rational type for burning low calorific value and low grade stone coal.in this article, a general description of main feature of the aerodynamic choracteristics of stone coal boiler with fliudized bed toqether with a brief analysis for ignition and burning process is given causes of low efficiency for burning stone coal in fluidized bed furnace and ways to decrease loss of mechanical incomplete combustion were preliminarily investigated.

沸腾炉是一种新型的燃烧方式,浙江省七年来的实践表明,溢流式沸腾炉是燃用低热值劣质石(火乚)的一种合理炉型。本文概述了石(火乚)沸腾锅炉的主要流体动力特征,对劣质石(火乚)在沸腾炉内的着火和燃烧过程作了简要分析,对石(火乚)沸腾炉燃烧效率不高的原因和降低机械未完全燃烧损失的途径进行了初步试验探讨。

 
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