热电联产在氯碱工业中的经济性分析

通过对热电联产经济性的分析，指出建立自备热电站，提高发电设备运行率和热电比等是目前氯碱企业获得经济效益的有效途径。     

应用热电冷联产技术,提高用能水平

介绍了常用的蒸汽吸收式制冷机组、双效溴化锂吸收式制冷机的工艺流程。分析了氯碱企业应用热电冷联产技术的条件。     

一起锅炉受热面管子损坏事故浅析及预防措施

通过对热电联产锅炉受热面管子损坏事故原因分析，合理提出预防措施，旨在为今后热电联产锅炉的安全、环保、经济运行提供有益帮助和借鉴。     

柴达木循环经济区示范项目开建

柴达木循环经济试验区总体规划中的重点示范项目——低碳循环经济产业园氯碱及热电联产项目，日前开工建设。该项目是青海省循环经济工业园区布局的重大项目之一。     

我国氯碱工业新时期的发展特点

在分析了国际、国内经济形势的基础上，提出了我国氯碱行业的发展趋势，即结构调整向大规模，集约化发展；企业改制转制向投资多元化发展，产品结构要实现氯碱平衡、大力发展聚氯乙烯及氯碱的下游精细化工产品。强调指出要建立氯碱行业物流中心，并重视环境保护?建议有条件的企业推行热电与碱联产，实现企业发展。     

国内外简讯

海吉氯碱公司氯碱项目二期工程开工建设内蒙古海吉氯碱化工股份有限公司氯碱第2期工程即将开工建设。乌海氯碱工程是国家实施西部大开发战略的重点化工项目,计划总投资100亿元,建设规模为电石100万t/a、烧碱40万t/a、聚氯乙烯树脂50万t/a,配套建设装机容量为70万kW的热电联产机     

红磷分公司磷复肥生产实现功热电联产的经济性

介绍云天化红磷分公司功热电联产的运用情况。利用硫酸、合成氨装置副产中压蒸汽供汽轮机驱动硫酸风机,供抽凝式汽轮发电机发电,抽汽满足低压蒸汽热用户,热电联产热效率高达85%以上。并对提高装置热效率的其他方法、功热电联产的经济效益进行了讨论。     

浅谈小化肥厂热电联产设计

本文分析了小化肥厂供热现状，小化肥厂热电联产的经济效益和热是联产的设计方案。     

干熄焦系统热电冷联产技术的能耗分析

采用当量热力系数、发电煤耗、当量制冷火用效率的3种热经济评价模型,对干熄焦系统热电冷联产制冷与分产制冷进行了能耗分析,给出了联产系统制冷与分产制冷的节能条件,为全面研究干熄焦系统热电冷联产与分产的能耗奠定了基础。     

提高背压式供热机组负荷适应性与运行经济性的方法

为使长沙天宁热电公司的热电联产机组能适应低负荷时的稳定与经济运行,提出在原有背压式汽轮机的排汽处串接低压凝汽式汽轮机的方法。实际证明,低压凝汽式汽轮机的增设既能使机组具有较好的热负荷适应性,又能维持机组运行参数的稳定,提高了机组运行的经济性。     

叉碱脱硫技术在大型电站的应用

通过论述双碱脱硫技术的应用,证明双碱技术与石灰石法、海水法、氨法脱硫等相比,在我国中小型热电联产和热电煤气多产有更广泛的推广前景。     

企业热电厂余热的综合利用

阐述了热电厂低真空供热及乏汽回收装置的运行原理。通过吸收并利用热电厂的乏汽及余热,可实现年节约标煤28645t,节水26080t,同时减少了大气污染,收到了良好的经济效益和社会效益。     

建设CFB锅炉工程实现热电一体化的经济效益分析

分析了现有蒸汽和供电系统对茂名100万吨／年乙烯装置“安稳长满优”运行的影响,评价了新建CFB锅炉技改工程热电一体化的优势和经济效益。     

An approach to improve the economy of desalination plants with a nuclear heating reactor by coupling with hybrid technologies

In order to investigate the possible approach to increase thermal efficiency of desalination plants, decrease water production costs and further optimize the coupling design of a nuclear heating reactor (NHR) with the desalination process, the coupling schemes of NHR reactors with hybrid desalination technologies were investigated. The cogeneration operation mode was adopted in this investigation. Two coupling schemes were selected for the cogeneration mode: NHR + low-temperature MED+RO and NHR + low-temperature MED+MED/VC. Technical specifications and economic aspects of the investigation are briefly presented in this paper.     

轮胎工厂的热电联产

介绍了轮胎工厂如何利用现有的蒸汽锅炉进行热电联产，以及相关设备的选择和发电的经济效益分析。     

化工园区热电厂的规划和建设需注意的几个问题

从外部条件的支撑、自发电量的控制、热电平衡、建设主体、管理形式、热电厂的数量和规模、供热参数和供热方式、热电联产经济效益分析、热电厂的布置、热电联产的整体性、政策措施等方面进行分析,提出了化工园区热电厂的规划和建设中,值得关注和需要解决的问题。     

Residential electrical power storage scenario simulations with a large-scale lithium ion battery

The advent of time-of-use (TOU) household electricity prices provides an opportunity for large lithium ion batteries to become a component of residential electrical power equipment for either storage or cogeneration. This project investigates household power use and cogeneration scenarios combined with lithium ion battery technology via simulation. The simulation treats transient battery charge and discharge based on electrochemical fundamentals. The analysis of both storage and cogeneration systems containing a batteries serves to demonstrate economic advantages of these types of power storage, as well as to identify size, materials, and performance criteria suitable for designing a lithium ion battery unit meeting real application demands.     

基于内燃机余热回收联产系统变工况特性分析

回收天然气内燃机的排气余热是提高能源利用率的有效手段。提出一种回收排气余热的朗肯循环耦合吸收式制冷循环的联产系统,并针对内燃机多变工况特点,构建联产系统的变工况仿真模型开展变工况特性研究。结果表明,当内燃机工况从100%下降到40%时,联产系统的当量效率下降2.14%,系统总能效率增量仅下降1.64%,说明此联产系统具有很好的工况适应性。在40%工况下,制冷循环由于溴化锂溶液的结晶而不能正常运行。研究结果为联产系统的实际运行提供理论指导。     

煤炭综合利用在枣庄柴里矿的实践

山东枣矿集团柴里煤矿热电公司,依托矿区资源优势,通过开展煤炭综合利用,大力发展循环经济,壮大了非煤产业,逐步发展成为以煤矸石、煤泥、煤气发电为主,集中供热为辅,兼以生产水泥、建筑建材等为一体的综合利用企业,实现了清洁生产。     

Using new packages for modelling, equation oriented simulation and optimization of a cogeneration plant

The development and testing of an equation-oriented (EO) mathematical model for the optimization of heat and power systems using a new state-of-the-art sequential quadratic programming (SQP) method called filterSQP has been reported in an earlier paper. The model has been extended to include combined cycle cogeneration plants (CCCPs), the economic optimization of which involves adding equipment investment, cost functions and operating cost models to the stream and unit operation models of the earlier paper. These systems are of substantial industrial interest and are substantially larger than those in Rodríguez-Toral et al., Computers and Chemical Engineering, August 2000. Their size and complexity required the use of a new flexible modelling system (FMS) recently created within our research group. FMS can be used to set up large systems of equations, create networks to be modelled and give starting guesses easily for problems of any size. Also, FMS is able to interact with solvers for EO simulation and optimization, which have been developed here and elsewhere. A number of EO simulation and optimization examples, from simple unit operations to a whole real cogeneration plant involving a commercial gas turbine with 1275 variables and equations, are used to demonstrate the applicability of the CCCP model and the modelling package.