锅炉冷渣机疏水节能技术改造

在循环流化床锅炉的辅机配置中，为了将高温炉渣冷却下来，冷渣机是必不可少的设备，如何将冷渣机低位疏水系统合理地利用起来，达到节能降耗的目的，是我们追求的目标。本文以贵州遵义氯碱化工股份有限公司热电厂循环流化床锅炉冷渣机低位疏水系统的改造为例，谈一谈如何充分合理地利用这一系统以达到节能降耗的目的。     

新型高效冷渣机的研制和经济分析

循环流化床锅炉是当代燃煤锅炉中脱硫效益最高的设备,本文对国内现有循环流化床锅炉的冷渣方式进行了综合述评,并着重推荐一种简单、高效、耐用,节能的干式冷渣机.该新型冷渣机应用了一种全新旋转抛洒推进技术,运行可靠性大大提高,固体燃料在推进过程中水冷与风冷相结合,可以在较短的筒体中完成必须的冷却,产生非常显著的节能、环保和社会效益.     

旋转干式流筒冷渣机在循环流化床锅炉上的应用

介绍旋转干式滚筒冷渣机在循环流化床锅炉上的应用.     

旋转干式滚筒冷渣机在循环流化床锅炉上的应用

介绍旋转干式滚筒冷渣机在循环流化床锅炉上的应用。     

新型高效XPL冷渣机的研制和经济分析

对国内现有循环流化床锅炉的冷渣方式进行了综合述评，并着重推荐一种简单、高效、耐用、节能的干式冷渣机。     

流化床冷渣器的设计与故障分析

近几年来,循环流化床锅炉(CFB锅炉)技术在国内发展迅速,随着循环流化床锅炉的大型化,采用流化床冷渣器已成主导方向,主要阐述了流化床冷渣器的工作原理、设计,对目前流化床冷渣器运行中出现的故障进行了分析并提出一些解决措施。     

滚筒式冷渣机在循环流化床锅炉的应用

河南神马尼龙化工有限责任公司，是以生产尼龙66盐和尼龙66切片为主的化工企业，与化工生产相配套有两台75t／h和1台130t／h循环流化床锅炉。初始设计时，锅炉冷渣采用螺旋水冷式冷渣机，冷渣用斗链式输送机输送至渣仓。实际使用中，螺旋水冷式冷渣机因螺旋转子磨损大，经常造成冷却水泄漏，且转     

风水共冷式冷渣器及其经济性分析

采用冷渣器是降低流化床锅炉灰渣物理热损失的有效方法。本文在已有冷渣器的基础上,设计出一种适用于大容量流化床锅炉的新型冷渣器——风水共冷式冷渣器,并分析了这种冷渣器的经济性。     

冷渣机在75t/h循环流化床锅炉中的应用

介绍冷渣机在循环流化床锅炉出渣系统中的应用,加装先进的设备后,节约价值十分可观。     

大型循环流化床锅炉冷渣器的运行故障及改进措施

循环流化床锅炉风水冷渣器运行存在主要问题及原因分析,并提出了改进措施。介绍和推选滚筒冷渣器,发展完善滚筒冷渣器有助于大型循环流化床锅炉安全可靠运行。     

国外建制大型循环流化床炉火电机组现状与发展趋势

综述近年国外大型循环流化床炉（CFB）火电机组（250MW）现状与发展动向,现代CFB锅炉的,CBF炉的高参数与大容量化,大型（300MW以下）CFB炉的结构特点,应用CFB技术改造超役锅炉及俄罗斯研制大型CBF炉经验。     

循环流化床锅炉国内外现状概述

国内循环流化床锅炉的发展现状，对国内流化床锅炉的技术情况进行了对比，介绍了国内流化床主要制造商情况，着重对国内流化床锅炉存在的问题进行了分析。     

我国大型循环流化床锅炉机组运行现状

循环流化床锅炉因其燃料适应性广、负荷调节性强及环保性能优良等特性在我国得到了快速发展。经过短短的十几年,我国已是世界上装机数量最多、装机容量最大的国家。目前我国循环流化床锅炉机组的总装机容量已经超过了90 000MW,其中仅300MW级循环流化床锅炉机组已经投运40多台,在建与拟在建的300MW循环流化床锅炉机组超过了70台。通过对我国300 MW级循环流化床锅炉机组2008～2010年来的运行数据的调查,对机组的可靠性、经济性以及环保性作了全面的总结与分析,并与同等级的煤粉锅炉机组进行了比较。能够对今后更大型机组的设计以及运行提供较好的参考,甚至对我国循环流化床行业今后的发展起到一定的指导作用。     

循环流化床锅炉在我国的发展

介绍循环流化床锅炉在国外的发展情况,回顾了循环流化床锅炉在中国的发展历程。分析循环流化床锅炉在中国获得发展的内在原因,指出中国将可能成为循环流化床锅炉最大的商业市场,并探索了新世纪中国循环流化床锅炉的发展道路。     

关于循环流化床燃烧技术在清洁生产中的前景探讨

本文介绍了循环流化床(CFB)燃烧技术、CFB锅炉的特点及中小容量CFB锅炉的作用,讨论了CFB燃烧技术在清洁生产中的发展前景.     

循环流化床锅炉动态运行特性模型研究

循环流化床锅炉由于其高效、低污染、燃料适应性强等优点 ,在热电行业内得到广泛的应用。其燃烧系统是一个分布参数、非线性、实变、多变量紧密耦合的对象。通过建立包括燃烧系统和汽水系统在内的总体数学模型 ,对 1台 2 2 0t/h循环流化床锅炉的动态特性进行了仿真计算。仿真结果表明 ,燃烧系统耦合性强 ,给煤量和送风量对床层温度和蒸汽温度都有明显影响 ;滞后时间大 ,燃料加入后 ,经较长的时间才会影响到主汽温度和床层温度的变化。研究结果为循环流化床锅炉燃烧控制系统设计和优化提供基础 ,为从根本上解决循环流化床锅炉燃烧控制系统自动投入率低的问题创造条件。     

What are the resource benefits of circulating fluidized bed power generation technology? Take some key thermal power units in China as an example

Efficient use of natural resources is an important part of China's energy industry to achieve sustainable development. The promotion of circulating fluidized bed (CFB) boilers is an important way to save coal and other resources from the source. This article first analyzes the connotation of resource benefits generated by CFB boilers. From the perspective of CFB technology used for low-calorific value coal recycling, coal recovery rate and sustainable development of coal resources (mainly coal can extend mining time), the resource benefits obtained by CFB are analyzed. The resource benefits obtained were analyzed. Second, based on the input-output nonlinear optimization theory, aiming at maximizing the resource benefits of CFB technology, constructing a CFB technology resource benefit nonlinear optimization model, measuring output benefits-added value, that is, the extension time of coal years and coal mining recovery rate increased value. Finally, based on the installed capacity data of China's CFB technology units from 1990 to 2015, the model designed two scenarios for China's future CFB technology development, and predicted China's 2020 CFB machine assembly capacity and power generation. On this basis, by analyzing the degree of coal resource conservation and the extension of the exploitable years, the model derives the resource benefits generated by CFB technology under different scenarios and the impact on the sustainable development of China's coal resources. These conclusions provide a quantitative basis for China's future CFB technology development.     

循环流化床锅炉的可用率分析

根据循环流化床锅炉的实际运行经验,分析总结了影响循环流化床锅炉可用率的主要因素,并提出了提高循环流化床锅炉可用率的建议.目前运行的燃烧各种燃料的不同容量循环流化床锅炉的可用率数据充分表明,循环流化床锅炉已达到了可以和煤粉炉相同的可用率.     

循环流化床锅炉飞灰中碳的形成机理

通过对循环流化床(CFB)锅炉飞灰含碳量分布及飞灰残碳形态的测量、CFB燃烧温度下焦炭失活过程的试验研究以及流化床条件下煤颗粒燃烧过程的分析.探讨了循环流化床锅炉飞灰中碳的形成机理.结果表明:实际运行的CFB锅炉飞灰中含碳量具有明显的不均匀性,残碳集中于25～50 μm的飞灰颗粒内;真实密度和XRD测量均表明,焦炭失活的2个条件是温度和时间,温度高于800℃,焦炭失活开始发生,并且随着时间的增加,失活程度提高;焦炭颗粒长时间停留在主循环回路中,反应活性下降,由于颗粒的碎裂和磨耗,形成了飞灰中粒径较小的残碳;煤中的细小煤粒首次通过炉膛时未燃尽且未被分离器收集,形成了飞友中较大颗粒的残碳.     

Development of a supercritical and an ultra-supercritical circulating fluidized bed boiler

The supercritical circulating fluidized bed (CFB) boiler, which combines the advantages of CFB combustion with low cost emission control and supercritical steam cycle with high efficiency of coal energy, is believed to be the future of CFB combustion technology. It is also of greatest importance for low rank coal utilization in China. Different from the supercritical pulverized coal boiler that has been developed more than 50 years, the supercritical CFB boiler is still a new one which requires further investigation. Without any precedentor engineering reference, Chinese researchers have conducted fundamental research, development, design of the supercritical CFB boilers independently. The design theory and key technology for supercritical CFB boiler were proposed. Key components and novel structures were invented. The first 600 MWe supercritical CFB boiler and its auxiliaries were successfully developed and demonstrated in Baima Power Plant, Shenhua Group as well as the simulator, control technology, installation technology, commissioning technology, system integration and operation technology. Compared with the 460 MWe supercritical CFB in Poland, developed in the same period and the only other supercritical one of commercial running in the word beside Baima, the 600 MWe one in Baima has a better performance. Besides, supercritical CFB boilers of 350 MWe have been developed and widely commercialized in China. In this paper, the updated progress of 660 MWe ultra-supercritical CFB boilers under development is introduced.