地热+高温水源热泵区域供暖工程的环境影响分析

经过分析计算，对区域燃煤锅炉房供暖方式和地热＋高温水源热泵供暖方式对环境的影响做出比较．证明了地热＋高温水源热泵同燃煤锅炉供暖方式相比具有巨大的环境效益。     

地热热泵调峰供暖系统的热力及经济分析

着重分析了地热热泵调峰供暖系统的热力性能和经济性。对两种采暖终端暖气片和风机盘管，分析计算了地热热泵调峰供暖系统的供暖参数和热泵性能参考。对我国目前经济条件下地热热泵调峰供暖的经济性进行了探讨，并与常规地热锅炉调峰供暖和传统锅炉供暖进行了比较。     

锅炉供暖科学技术管理与节能

锅炉供暖科学技术管理与节能哈尔滨理工大学杜志宾，刘兴家锅炉供暖是我国“三北”地区的重要工作，特别是地处寒冷地区的黑龙江省，只有做好供暖工作，才能保证在－２０～－４０℃的严寒冬季，有一个温暖舒适的室内环境，使教学、工作、生活有秩序地正常进行。然而供暖必...     

光热与电极锅炉联合供暖方式的研究

介绍了一种光热与电极锅炉联合供暖方式。电极锅炉具有寿命长、启动快、发热量大、安全环保等优势,在冬季太阳能供暖和蓄热都达不到供暖需求时,可以启动电极锅炉,实现与光热供暖相互补充。同时,电极锅炉可利用风电及低谷电供暖,其还可以起到平衡电网压力的作用。     

我国首个高寒高海拔清洁取暖项目投运

<正>11月7日,青海玛多县民族寄宿中学12台新型节能电锅炉通电供暖,标志着我国首个高寒、高海拔地区清洁取暖项目正式投运。玛多县平均海拔高、供暖期长,当地居民过冬只能依赖牛粪和煤,供暖成本高且环境污染大。2017年,国家电网使用定点扶贫资金,在玛多县划分4个片区分步实施以电代煤清洁供暖项目,将燃煤锅炉集中供暖区域、散烧煤区域改为清洁供暖,并对牧民定居点普及电热炕,逐年提升牧民家庭电气化水平,最终实现全县范围内清洁供暖,计划2018年全     

适用于严寒地区的碟式太阳能供暖锅炉设计

提出一种适用于严寒地区的碟式太阳能供暖锅炉设计方法。首先将碟式太阳能供暖锅炉与其他类型结构进行对比,提出了碟式太阳能供暖锅炉结构及15个相关技术参数的说明及计算方法;其次,将两种设备在不同环境温度下的功率和热效率变化曲线进行了对比;最后,以新疆富蕴县冬季蔬菜大棚实验基地为研究对象,设计了36 m~2碟式太阳能供暖锅炉,并给出了设计方法和技术参数。应用于富蕴县蔬菜大棚太阳能供暖项目的成功,充分验证了碟式太阳能供暖锅炉在高寒地区供暖的可靠性和高效率。     

生活垃圾焚烧与城市集中供热

为实现城市生活垃圾无害化焚烧处理并资源化利用,同时又满足供暖区域城市集中供热需大蒸发量锅炉的要求,本文介绍了一种垃圾与煤混烧的大型循环流化床焚烧锅炉及处理系统.     

实行科学管理 提高供暖效益

供暖工作是我们北方高校后勤工作中的一项重要工作，这项工作的好坏不仅涉及到教学、科研能否顺利进行和学校的安定，也是后勤工作好坏的重要标志。同时又是一项涉及能源供应、设备维修、运行管理等的技术性、科学性很强的工作。如何不断提高管理水平，降低煤炭、电力等能源消耗，努力实现在保证供暖温度的前提下取得最大效益，是摆在我们面前的重要课题。总结几年来我院采暖工作的实践有以下几点体会。1采用集中供暖新手段，方能发挥整体效益1991年以前我院院内供暖区域有6个，总面积约17万m~2，分5个锅炉房9台锅炉供暖，十分分散。有些锅…     

锅炉承压部件损伤的原因与对策探究

随着国内供暖需求量的不断增加,对于锅炉供暖质量也提出了更高的要求,但是现阶段锅炉在运行过程中经常性的会发生故障,在很大程度上影响了锅炉供暖质量,对于发电厂来讲,必须要定期的对锅炉进行维修检查,提高锅炉运行安全性和可靠性。本文重点对锅炉承压部件损伤原因进行分析,同时结合具体案例提出承压部件损伤维修对策。     

集中供热节能环保双受益

集中供热节能环保双受益北京重型电机厂甘龙元北京重型电机厂集中供热自１９８９年１２月投建运行已有四年多的时间。一期工程安装三台锅炉，供热量为３×２５００×１０４ｃａｌ／ｈ，从一台锅炉运行供暖西厂区１２万ｍ２，发展到全厂供暖并向社会供暖近８５ｍ２供热半径...     

垃圾焚化余热锅炉受热面设计特点

垃圾锅炉设计成多烟道结构,体积庞大,受热面积数倍于普通锅炉,且负荷变化率不小于2。图示出这种锅炉特有的布置于高温烟气区的一次交叉流动空气预热器管壁温度场。     

Hydronic heating systems: transient modelling,validation and load matching control

A dynamic model of a hydronic heating system is developed. The system consists of a boiler, baseboard terminal units, domestic hot water (DHW) heat exchanger coil and an environmental zone. The model is described by a set of time varying nonlinear coupled differential equations. Predicted responses from the model are compared with the measured data gathered on an on–off controlled hydronic heating system installed in an apartment building. Results show that the model predictions compare well with the field data. Using this validated model, feedback controllers are designed to achieve better regulation of zone air temperature, boiler water temperature and DHW temperature. A load tracking setpoint control strategy is proposed to regulate boiler temperature as a function of outdoor air temperature. Results showing the simulated responses of the system with the designed controllers subject to step changes in space heating and DHW loads are given. © 1998 John Wiley & Sons, Ltd.     

燃烧器区域速度场对受热面结渣影响的试验研究

应用三维凿子动态分析仪（PDA）对某六角切向燃烧锅炉的冷态模型进行试验研究,通过对燃烧器出口区域气固两相速度场的测量和分析,发现六角切圆燃烧锅炉炉内主旋转气流旋转较弱,在燃烧器上部区域衰减很快,各角射流刚性差异较大,并从流场结构上分析了高温受热面结渣的原因。     

秸秆成型燃料锅炉的设计及试验研究

根据秸秆成型燃料高挥发性和燃烧稳定的特点,完成了输出热负荷200 kW的秸秆成型燃料锅炉的设计。其炉膛可分为热解区、炭燃烧区与挥发分燃烧区3部分,实现了秸秆成型燃料的分段燃烧。以直径不同的5种玉米秸秆成型燃料进行了试验研究,分别对其输出热负荷、燃气中CO含量及热利用效率进行了测试,发现利用直径为40～50 mm成型燃料时,锅炉的输出热负荷最大,热利用率较高,烟气中CO含量较低。     

Impact of burner cycle time in liquid fuel pressure burners on the thermal efficiency of heating appliances

Heating appliances used in buildings are designed according to building's heating load as a function of outdoor design air temperature. Usually this temperature is quite lower than the average external air temperature during the heating season. For most of the heating season, heating appliances do not operate at their nominal heating capacity. This requires boilers to operate at a lower thermal efficiency. Furthermore, on–off cycling of the pressure oil burner increases the amount of emissions of harmful substances into the flue gases. In many systems, a built-in burner is harmonized to the heating power of a boiler. The heating appliance's thermal efficiency appears to depend on burner cycle time and boiler heating load. Thermal efficiency of the heating appliance drops during shorter burner cycle times. The shortest burner cycle time appears at approx. 50% of the boiler heating load. Interestingly, in cases where the boiler heating load is not equivalent to rated (design) boiler capacity, two methods of calculating boiler thermal efficiency produce different results.     

超临界锅炉炉膛传热计算方法的研究

通过比较各种不同的燃煤锅炉炉膛传热计算方法,在前苏联1973年热力计算标准中的分区段计算方法的基础上,提出一种改进算法,用于超临界锅炉炉膛传热计算。并对某600MW超临界锅炉采用改进的分区段法进行炉膛传热计算,结果与实际基本吻合。改进的分区段算法充分考虑了超临界锅炉炉膛结构和燃烧方式,可以作为超临界锅炉炉膛传热计算的有效工具。     

承压锅炉供暖系统与常压锅炉供暖系统的比较

热水采暖和蒸汽采暖相比有许多优点,而热水锅炉是热水供暖系统中的重要设备。文中对承压锅炉供暖系统与常压锅炉供暖系统的特点进行了分析比较,以期为供暖系统的工程设计提供参考。     

浅谈邻炉加热装置的投入对锅炉的影响

主要通过大容量高参数汽包锅炉邻炉加热装置的投入,对邻炉加热的作用及其在锅炉冷态启动中对汽包影响和对过热器、再热器的保护进行讨论,可为锅炉的整体设计思路提供参考。     

六角切圆燃烧锅炉燃烧器区域煤粉粒径分布的试验研究

对某670t/h六角切圆燃烧煤粉炉进行冷态模化试验,应用激光多普勒测速仪（PAD）进行测量,研究燃烧器出口区域煤粉颗粒的粒径和速度分布,分析它们对受热面结渣的影响,并比较加大上层燃烧器二次风假想切圆直径后结渣状况的改善,寻求解决锅炉结渣问题的措施。     

The heat transfer coefficients of the heating surface of 300 MWe CFB boiler

A study of the heat transfer about the heating surface of three commercial 300 MWe CFB boilers was conducted in this work. The heat transfer coefficients of the platen heating surface, the external heat exchanger (EHE) and cyclone separator were calculated according to the relative operation data at different boiler loads. Moreover, the heat transfer coefficient of the waterwall was calculated by heat balance of the hot circuit of the CFB boiler. With the boiler capacity increasing, the heat transfer coefficients of these heating surface increases, and the heat transfer coefficient of the water wall is higher than that of the platen heating surface. The heat transfer coefficient of the EHE is the highest in high boiler load, the heat transfer coefficient of the cyclone separator is the lowest. Because the fired coal is different from the design coal in No.1 boiler, the ash content of the fired coal is much lower than that of the design coal. The heat transfer coefficients which calculated with the operation data are lower than the previous design value and that is the reason why the bed temperature is rather high during the boiler operation in No.1 boiler.