共查询到20条相似文献,搜索用时 62 毫秒
1.
2.
3.
4.
炼钢转炉余热锅炉是炼钢厂非常重要的设备,它不仅关系互能源的回收利用,而且对炼钢过程产生直接影响,所以炼钢转炉余热设备的安全运行至关重要。本文分析了以前炼钢转炉余热锅炉设计中普遍存在的问题,介绍了一台炼钢转炉余热锅炉的改进设计。 相似文献
5.
6.
7.
8.
分析了火电厂锅炉连续排污的废水热能浪费及其利用价值,介绍了耒阳火电厂利用排污水余热取暖的设计和使用效果,说明在火电厂利用废水余热节能有着得天独厚的条件,大有潜力可挖。 相似文献
9.
目前国家对中、低温余热资源利用的重视程度逐步提高,很多企业都使用烧结双压余热锅炉来提高整个热力循环的效率,减少环境污染。本文首先对双压余热锅炉原理进行研究后,对卧式余热锅炉和立式余热锅炉布置方式的,两种利弊和应用的场合进行研究,最后从双压余热锅炉的本体结构出发对整个系统的工作原理进行了深入的分析。 相似文献
10.
11.
12.
13.
14.
15.
针对某加热炉的实际情况,分析了排烟热损失的影响因素,提出了降低排烟热损失的措施,以及温度降低后对排烟热损失的影响,措施实施后取得了比较明显的效果。 相似文献
16.
Li Jia Xiaoping Li Jindong SunDeparment of Urban Construction Engineering Beijing Institute of Civil Engineering Architecture Beijing Xiaofeng PengDepartment of Thermal Engineering Tsinghua University Beijing 《热科学学报(英文版)》2002,11(2):144-147
The experiment was conducted to investigate the heat transfer performance of wet flue gas in a vertical tube. The factors influencing the convective condensation of wet flue gas were experimentally investigated. The measured results indicate that the convective heat transfer of bulk flow and condensation heat transfer of vapor have significant contribution to the total heat transfer and the dominant transport mechanism is dependent upon the vapor fraction in mixture. 相似文献
17.
To improve the practicability of the waste heat recovery system for internal combustion engines, the compact potential of exhaust heat exchangers using metal foams is investigated. In the present study, the performance of compact exhaust heat exchangers is compared with that of a conventional shell and tube heat exchanger in a real test bench. Both heat transfer and pressure drop performance are considered when assessing the performance of heat exchangers because these two factors normally show a trade‐off relationship when designing exhaust heat exchangers. Compared with the conventional heat exchanger, the compact heat exchanger can achieve a similar pressure drop, and at the same time the heat transfer is increased by 30%, whereas the volume and the weight are each reduced by 2/3. The performance of compact heat exchangers with six types of Ni metal foams is also investigated under different mass flow rates and thicknesses of the porous layer. Results show that the optimum compact heat exchanger enhances the comprehensive performance 1.9 times compared with original one. This study shows that metal foams have great potential in realizing a compact exhaust heat exchanger for engine waste heat recovery. 相似文献
18.
19.
以常规客车空调系统作为研究对象,设计出一种以活性炭-甲醇为工质对的加热吸附式客车空调系统。其工作原理是:以汽车尾气余热作为制冷能量的来源,利用某些固体(吸附剂)能在低温下吸附气体,而在高温下解吸,从而进行制冷,降低车内温度。这样既不降低客车动力,工质对对环境又无污染,能够达到实现节约能源、保护环境的目的。 相似文献
20.
热力除氧法在电站、供热站给水除氧处理上已普遍应用,但除氧器除氧同时也带来了热量、工质的损失和造成排汽噪音,在资源综合利用、节能环保方面存在相当问题。文章通过对上海金联热力供应有限公司高压除氧器排汽能量回收节能改造的实例,得出其在类似场合应用及在节能、节水、环保方面具有显著成效的结论,进而呼吁推广应用。 相似文献