查询词典 cupola furnace

Results of numerical tests show that a coal powder burner with a guide plate can decrease the diameter of the tangential circle in the furnace and temperature level near the water wall effectively,so as to prevent slagging in the furnace.

由于该燃烧器防结渣效果明显，具有一定的稳燃功能，且结构简单，改造资金少，因而在某些燃用高挥发分、易结渣煤种的电厂中得到了推广应用。

The main contents of the present paper include: 1、The mechanism of fouling accumulation and the effects of fouling and slagging on boiler performance are analyzed. The model of fouling increasing is developed on the basis of sediment rate and denudation rate. The fouling monitoring models for boiler furnace and convective sections based on heat balance, the ones for air heater based on converted pressure difference are given. The implement results show that these models can reveal the cleanliness of boiler heat transfer surface. 2、The disadvantages of the model for boiler furnace fouling and slagging monitoring based on heat balance are discussed, and the calculation of radiant heat flux is considered as the primary difficulty.

主要包括以下内容： 1、分析了锅炉受热面污染形成的机理，从灰污的沉积率和剥蚀率角度出发，推导了受热面灰污增长的基本模型，分析了灰污热阻随积灰时间和烟气流速变化的规律，并通过大量现场试验，得到了沉积常数与时间常数的取值范围； 2、针对炉膛、对流受热面和空气预热器等不同受热面的传热特性，分别建立了基于热平衡和折算压差的污染在线监测模型，经实践验证，其监测结果能够满足现场工程应用的精度要求； 3、分析了基于热平衡原理的辐射、半辐射污染监测模型的不足之处，指出了机理模型因对炉内辐射换热量计算不准确，导致对以辐射换热为主的炉膛和以半辐射半对流的屏式过热器监测效果不够理想。

In this dissertation, the shaft furnace is taken as the study object, the phenomena in the furnace, such as momentum, heat and mass transfer are researched progressively through model experiment and numerical simulation.

本论文以竖炉为研究对象，对竖炉内的气体流动、传热和化学反应等现象进行了逐步深入的理论解析和研究，并对COREX尾气竖炉工艺进行了计算机模拟与仿真的研究。

The computational model andsimulation method are tested by post-process and visualization of experimentalresults. The application of 2-D Particle Image Velocimetry is also discussed.8 Optimal design of the furnace tube system in an ethylene-cracking furnace isstudied as a practical example. Screw-pitch of the static mixer unit andinstallation layout of tubes with static mixer is discussed.

讨论了先进的二维PIV实验方法应用的可能性。8、以一台典型的工业炉——乙烯裂解炉为例，对静态混合式炉管进行结构优化设计，优化参数涉及元件螺距、安装方式——如安装间距、安装个数、安装方向和相位角等，提出随着静态混合元件的螺距的增大，安装间距也在增大。

There was a great deal of chlorine salt ions in blast furnace gas dusted with cloth bag,which directly affected safety running of blast furnace gas network and normal usage of users.

在10%NaC l溶液的浸泡环境中，采用不同的养护制度，对氯盐侵蚀环境下掺加不同橡胶掺量混凝土试件的力学性能进行了研究。

There was a great deal of chlorine salt ions in blast furnace gas dusted with cloth bag,which directly affected safety running of blast furnace gas network and normal usage of users.

布袋除尘高炉煤气中存在大量的氯盐离子，直接影响了高炉煤气管网的安全运行和用户的正常使用，就氯盐的主要成分及如何降低其对管网和用户的影响进行了探讨。

Before 1949, Beijing has heat treatment furnace, salt dissolved by thermocouples means furnace, quenching and tempering, parts of annealing, normalizing, quenching and tempering, carburizing and etc.

热处理 1949年前，北京已采用电炉、盐溶炉、热电偶等手段进行零件退火、回火、淬火、正火、调质、渗碳等热处理。

Three-phase embed electrode salt bath furnace use the salt class as heating impregnant, according to the different operating temperature, could select different ingredient salt or compound salt, the salt is not electric beforemelting, therefore the salt bath furnace must use the starting-electrode to melt when using, because the electricity bring quantity of heat unceasingly through electric dissolving salt, so can maintain the dissolving state, because of electrode under the electromagnetic effect,make the dissolving saltcycle unceasingly through natural convection and magnetism mix round,therefore can well-proportioned heat workpiece rapidly.

三项埋入式电极盐浴炉采用盐类作加热剂，根据不同的工作温度，可选用不同成份的盐或混合盐，盐在熔化前是不导电的，因此盐浴炉使用时必须使用起动电极溶化，由于电流通过导电的溶盐不断产生热量，故可保持溶化状态，因电极在电磁力的作用下，通过自然对流和电磁搅拌而使熔盐不断循环，故可迅速和均匀的加热工件。

This laboratory crucible salt bath structure, the furnace shell is made by the steel plate and the section welding, the chamber conserves energy the fire-proof material by Gao Lvzhi to be made, the chamber uses the aluminum silicate textile fiber heat preservation in the furnace shell, the resistancewire uses the 0Cr25Al5 heating element, circles makes the spiral-shaped arrangement in the chamber string silk hole all around.

本实验室坩锅盐浴炉结构，炉壳由钢板和型钢焊接制成，炉膛由高铝质节能型耐火材料制成，炉膛于炉壳间采用硅酸铝纤维保温，电阻丝采用0Cr25Al5发热元件，绕制成螺旋状布置在炉膛四周的串丝孔内。

The RYG2 series energy conservation crucible salt bath by the furnace shell, the furnace lining, the crucible, the crucible cover, the heater element and the upper hood part is composed.

RYG2系列节能型坩埚盐浴炉由炉壳、炉衬、坩埚、坩埚盖，加热元件及上罩部分组成。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。