查询词典 slagging

Firstly, the basis of slagging and fouling is deeply researched, and at the same time, all kinds of factors affecting slagging and fouling are considered.The progress of slagging and fouling is analyzed in microcosmos, and the theory basis is provided for on-line monitoring.

首先对积灰、结渣的机理进行了深入的研究，同时也考虑了影响飞灰沉积和结渣的各种因素，从微观上分析了积灰、结渣过程，为在线监测提供了理论根据。

Two-equation turbulence model is used in numerical simulation for the side-air burner, compared with the practical measures and tests, good accordance achives. This method can bring great convenience in analyzing aerodynamical field of boiler. Secondly the method of XRD is used in analyzing the phase transformation in the course of dynamic slagging test, so we can describe the process of slagging comparatively accurately. Last this paper introduces a kind of fuzzy mathematics model which comprises an assemblage combined by seven change factor.

本文首先采用k—ε双方程模型对水煤浆侧边风燃烧器进行了数值模拟，并与实际锅炉燃烧器冷态调试试验结果对比，结果吻合较好，这为我们分析炉内空气动力场特性提供了参考；其次对锅炉结渣动态特性试验，采用XRD的分析方法，较为准确的描述了实际锅炉结渣的过程；最后为了准确的判断出水煤浆的结渣倾向，本文对锅炉结渣的七个影响因素提出了模糊综合判断模型，正确的反映出了该水煤浆的结渣倾向。

Firstly the k-e two-equation turbulence model is used in numerical simulation of the flow field ,compared with the practical measures and tests, good accordance achives. This method can bring great convenience in analyzing aerodynamical field of boiler. Secondly the method of ash-composition, ash-melting-point, XRD is used in analyzing the phase transformation in the course of dynamic slagging test, so we can describe the process of slagging comparatively accurately. Last this paper introduces a kind of fuzzy mathematics model which comprises an assemblage combined by seven change factor.

接着采用标准k—ε双方程模型对炉内冷态空气动力场进行了数值模拟，并与实际锅炉燃烧器冷态调试试验结果对比，结果吻合较好，这为我们分析炉内流场提供了参考；其次对锅炉静态、动态特性试验，采用灰成分分析、灰熔点测试及X光衍射物相分析方法，较为准确的描述了实际锅炉结渣过程；为了准确的判断出水煤浆的结渣倾向，本文对锅炉结渣的七个影响因素提出了模糊综合判断模型，正确的反映出了该水煤浆的结渣倾向。

Firstly, the basis of slagging and fouling is deeply researched, and at the same time, all kinds of factors affecting slagging and fouling are considered.

用改进的RPROP网络代替传统的BP网络，使网络的收敛速度大为改观，而且网络的适应性也有了很大的提高。

It is provided with automatic slagging function for the convenient of slagging.

并具有自动出渣功能方便排渣。

After coal blending, the ignition and slagging behaviors of said coal have been obviously improved, temperature field in the furnace and slagging tendency being also obviously improved, but having certain influence upon the drying capacity of coal pulverizer.

配煤后，其著火和结渣特性得到明显改善，炉内温度场及结渣情况明显改善，但对磨煤机乾燥出力有一定影响。

Both of Lurgi and Lurgi slagging gasifiers have good thermodyna-mic efficiency,especially in slagging operation.

两种鲁奇炉均具有较好的热力学效率，尤以鲁奇熔渣炉为佳，K—T 炉则较差。

The furnace slagging has puzzled tangential-fifing utility boiler for a long time. In this thesis, a full model of furnace slagging has been introduced. Some problems in numerical simulation are analyzed and mended.

本文针对切圆燃烧煤粉炉炉膛结渣问题，建立比较完善的炉内结渣预报模型，并对数值预报中存在的问题进行了分析和改进。

The successful utility of a 300 MW unit proves the correctness of this test,which provides an effective way to solve the slagging problem in the furnace of a large scale power plant boiler. power plant boiler ; slagging ; numerical test ; coal powder burner

当锅炉采用导流板式燃烧器时，一方面由于导流板的作用，使一次风向炉膛中心偏转，改善了一次风背火侧的补气条件，另一方面由于一次风煤粉气流的切圆直径变小

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 the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。