共查询到20条相似文献,搜索用时 328 毫秒
1.
利用循环流化床燃烧技术对35t/h抛煤机锅炉进行技术改造,使用户能燃烧当000Kcal/Kg左右的劣质燃料,企业收到了很好的经济效益和社会效益。 相似文献
2.
循环倍率是循环流化床锅炉(CFB)的一个重要参数。本文从循环流化床锅炉脱硫及适于燃烧劣质燃料两个不同应用方向。论述了循环倍率对分离效率、燃烧效率、锅炉电耗及材质和磨损等方面的影响。通过低倍率CFB锅炉与高倍率CFB锅炉的综合比较,认为发展低倍率CFB锅炉是符合我国国情发展方向的。 相似文献
3.
分析了循环流化床锅炉材料磨损原因,并指出材料磨损与燃料灰的物理和化学特性有关,还与进入燃烧室的惰性床料有关。 相似文献
4.
循环流化床生物质锅炉过热器的结渣问题,是由燃料特性及锅炉结构不适应燃料造成的,通过采用特殊的过热器结构设计,防止了结渣,提高了锅炉运行的可靠性。 相似文献
5.
本文论述燃料烧煤粒度和级配对循环流化床锅炉的影响,分析了现在运行的大多数燃料制备系统的优缺点,尤其是适应高水份煤的筛分和破碎情况,并介绍了几种适应高水份煤份燃料制备系统。 相似文献
6.
燃烧和传热特性是循环流化床锅炉的燃烧技术基础,其燃烧有三大特点,传热方式有独特性,且可调节传热效果,从而使该炉有很多优点。 相似文献
7.
8.
9.
循环流化床锅炉是最近几年在世界范围内兴起的一种比较高效和环保的燃料清洁技术,主要优势在于能够处理多种类型的燃料,而且对于任何燃料都能做到硫化物以及氮化物低排放,操作流程简单易懂,我国目前也有大批的循环流化床锅炉投入使用。本文主要就循环流化床锅炉的物理结构进行简要分析,并结合床温偏高的原因制定相应的控温对策。 相似文献
10.
循环流化床锅炉燃烧技术的发展也取决于气固分离技术的发展,分离器设计上的差异标志着不同的循环流化床技术流派。 相似文献
11.
12.
13.
介绍了一种基于单片机的电容传感器测量飞机油箱内油量的方法,利用电容式传感器的电容随油面高度的变化,构建了以单片机为核心的油量自动测试系统,给出了该油量测试系统的测量原理、硬件设计和软件设计。实际应用表明,该油量测量系统具有结构简单、测试精度高、可靠性好等优点。 相似文献
14.
介绍了山西日报社采编大楼中央空调循环水变频节能系统中人机界面的设计思想和PLC相关程序的设计方法。 相似文献
15.
Yu. N. Drozdov V. V. Makarov A. V. Afanas’ev I. V. Matvienko E. P. Osipova V. N. Puchkov 《Journal of Machinery Manufacture and Reliability》2011,40(3):242-246
A procedure and findings of investigations of the dynamic characteristics and the wear of fuel elements in the framework of
the development of a perspective design of fuel elements without fastening in a lower support grid are presented. At the first
phase of the work, natural vibration frequencies and the dynamic rigidity of fuel elements are determined in various design
variants of lower spans. Resonance frequencies of spans of fuel elements are revealed by minimums of the dynamic rigidity.
At the second phase, investigations of vibrational wear within contact of fuel elements with cells of spacer grids are performed
on models of a lower part of a fuel assembly. Four embodiments of the lower part of the fuel assembly are investigated. As
a result of the application of high vibrational loads, the wear of fuel element cans and grid cells is observed in more than
a half of contact assembles of fuel elements with spacer grids. The most and least wear-resistant designs of the lower part
of the fuel assembly are determined by results of tests. 相似文献
16.
With increasing requirements for the less harmful exhaust emissions and the better fuel economy, the conventional injectors
in gasoline engines can be replaced by the air shrouded injector in order to provide improved combustion in engine operations.
To find out the optimal shape of air shrouded atomizer attached to the conventional injector nozzle, the critical design parameters
such as droplet size, fuel and air inlet angles, and injection angles were investigated based on experimental analyses. To
explain the characteristics of fuel atomization, these experimental approaches were carried out using a Phase Doppler Particle
Analyzer (PDPA) system. The droplet sizes of injected air fuel mixture were obtained by using the beam diffraction phenomenon.
In order to improve the atomization effect, the various atomizers were investigated. The Sauter Mean Diameter (SMD) measured
at the predetermined locations outside the atomizer represented the performance of fuel atomization. The experimental results
show that the design factors and atomization mechanism needed for developing air shrouded injectors. The suggested design
parameters in this paper can be a useful reference in the early design stage. 相似文献
17.
18.
19.
20.
对燃油共轨管图纸进行了分析,结合实际情况,设计出加工花生孔导向装置,安排了合理的加工方法,成功加工出燃油共轨管,打破了国外对燃油共轨管加工技术的垄断,为国内加工燃油共轨管开创了先例,为公司创造了良好的效益。 相似文献