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It attaches importance to the design and structure arrangement method for biology pyrogenation fuel boiler,and the design character of the convection heat surface,offering an available experience for the design of similar boiler.

0/470-T生物质热分解燃料锅炉设计与开发过程,着重探讨燃烧生物质热分解燃料锅炉设计和结构布置方法以及对流受热面的设计特点,为同类型的锅炉设计提供借鉴经验。

This process organically combines the circulating fluidized bed combustion technology with boiler-front low-temperature dry distillation technology, the hot ash of circulating fluidized bed is used as the hot carrier to pyrolyze the coal and generate tar and gas. The semi-coke after pyrolysis is fed into boiler to generate steam for power generation and heat supply. The total energetic efficiency of this process is 10% higher than the single power generation process.

中科院山西煤化所开发的煤炭干馏-循环流化床燃烧多联产技术,是将循环流化床燃烧技术与炉前低温干馏技术有机地结合起来,用循环流化床锅炉的高温循环热灰作为载热体使煤发生热解,产生焦油和煤气,热解后的半焦作为锅炉燃料送入炉内燃烧以生产蒸汽,用来发电和供热,多联供集成系统比单纯发电系统的总能效率提高约10%。

A Corner-tangential-boiler of 410t/h in Guohua Beijing thermal powerplant was studied in the thesis. Firstly, optimizing operation was carried on boiler for de-NOx emission; secondly, numerical simulation was made by Fluent software, the calculation results were consistent with experiments. The retrofit scheme of reburn was put out which ascended the upper primary wind.

本论文以国华北京热电分公司410t/h四角切圆燃煤锅炉为研究对象,首先进行了锅炉低NOx优化运行的试验研究;并通过Fluent数值模拟对其进行了深入的研究,计算结果与实际情况吻合较好,同时提出将上一次风上移作为再燃的改造方案,并对改造后的情况进行模拟预测,得到改造后工况运行优于现行工况。

Boiler——a subcritical uniflow boiler of 1000t/h steam at MCR, two-furnace,"Л"mold arrangement in a power plant in which the severely high temperature corrosions was existed, was studied in this thesis.

针对目前双炉膛锅炉存在的水冷壁烟气侧高温腐蚀爆管现象,结合本课题的工程背景,以某发电厂高温腐蚀最为严重的7号锅炉——1000t/h亚临界双炉膛、。。。

The velocity and temperature numerical simulation at three dimentions in four-corner-burners boiler is conducted. The velocity and temperature distribution of weste gas in the old and transformed boiler are compared which is helpful to optimize the parameters of the burners for design and operation.

在新型回流区分级着火燃烧器的应用实践中,对四角切圆锅炉炉内三维速度场和温度场进行了数值模拟,比较了改造前后炉内烟速和烟温分布,有助于优选燃烧器的设计运行参数。

Based on the principles of stepped firing in recirculation zones, several new type straightjet and revolving-pour burners are designed and manufactured which used for different power boilers and industral furnaces with combustion of pulverized coal, poor-gas or fuel-oil. The burners are tested and improved in practice and good results are finally achieced in variant degrees including strenthening flame stability, adapting to boiler capacities and rank of coal, raising combustion and heat transfer efficiency, and lowering the temperature of weste gas at the boiler tail.

应用回流区分级着火原理,设计和制造了几种不同结构型式的直流、旋流新型燃烧器,用于燃煤粉、煤气、油雾的不同类型的锅炉和工业炉,在实践中进行试验和改进,最终都在不同程度上取得了强化稳定燃烧、适应负荷和燃料品质变化、提高燃烧和传热效率、降低炉尾烟温的好效果。

The hidden danger in safe operation of boiler due to the flame-out protection of boiler delayed after the furnace-pressure protection control has been pointed out.

指出了锅炉灭火保护控制滞后炉膛压力保护控制对锅炉安全运行存在隐患。

of preventing dust deposits in order to prevent reduced boiler efficiency due to adhering dustIf dust deposition is large, wear is not a problem, but dust deposits have a negativeeffect on boiler tube heat transfer.

方法防止灰尘存款,以防止锅炉效率降低,由于坚持尘埃如果尘埃沉积大,磨损是没有问题,但尘埃存款有负面对锅炉管传热。

The bevels were done so when I glued the 2 pieces together they would follow a 10 radius to go around the boiler. I also chamfered the 2 edges to simulate a vee into the wood like what was on the tongue and groove joint. I glued up enough to get 1/2 way around the boiler. I didn't do them all as I might have to make some of them narrower so when I get to the last piece it will fit in the bottom ring tightly.

该bevels 人这样做,当我胶合板2件一起,他们会按照10 半径去靠近锅炉的,我也削2的优势,模拟VEE的进入木材一样,什么是对舌头和Groove联合,我胶合板直至足以让1 / 2的方式靠近锅炉的,我没有这样做,他们都为我可能会作出一些他们窄,因此,当我到了最后一块,这将适用于在底部的环紧紧。

Cheesed head studs for arc stud welding are largely applied in bridges, reinforced concrete for high buildings and industrial buildings, cover fixture of heave duty ships, boiler pipe welding, inserts fixture for boiler pipe and other special purposed containers.

电弧螺柱焊用圆柱头焊钉系列产品主要用于桥梁、高层建筑及工业厂房的钢-混凝土结构,大吨位船舶各种孔盖的固定,锅炉管道的螺柱连接、锅炉管道的散热及储罐、槽车等各种容器特殊衬里的固定。

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In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国,慢性酒精中毒,肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题,你可以随时联系我。

Very pretty, but the airport looks more fascinating The other party wisecracked.

很漂亮,不过停机坪更迷人。那人俏皮地答道。