共查询到20条相似文献,搜索用时 202 毫秒
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结合生产实践,分析油田企业生产过程中,机采、注水、集输、热力、供配电系统等方面的节能潜力及存在的主要问题,通过典型节能技术应用案例分析,总结了系统和部分高效节能设备等节能技术与实现途径。 相似文献
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通过对38个有代表性的企业在供配电系统节能管理方面的调查、分析,提出了贯彻、落实国家标准《企业供配电系统节能监测方法》的措施。对企业供配电系统节能管理及政府依法实施节能监督具有积极意义。 相似文献
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以某超高层酒店燃气蒸汽锅炉节能改造为例,对锅炉蒸汽系统改造前能耗进行了拆分、效率测试及节能潜力分析,进而提出了改造方案并测算了节能效果,对设计、施工及调试过程中出现的问题进行了总结和分析,为同类建筑锅炉蒸汽系统的改造提供了参考和借鉴。 相似文献
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中央空调系统变频节电及余热回收技术 总被引:3,自引:1,他引:2
运用中央空调系统热负载关系图,分析了压缩机、循环水泵、空调箱三大电耗部分的节能原理、潜力及国外最新发展动态,介绍了中央空调变频闭环节能系统和余热回收系统,提出了饭店业制冷、供热系统能源循环利用的节能新模式。 相似文献
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VRV空调系统的节能性研究与应用 总被引:3,自引:0,他引:3
介绍VRV空调系统的特点及发展状况,特别从传热介质、设计理念创新等不同角度分析了该系统的运行节能因素,并且对变频控制热泵式VRV空调系统的节能性能和冬、夏季的运行特性作了一系列实验研究,从而分析了影响室内机制冷量、制热量以及室外机组功率的因素。通过具体的实例分析,对VRV空调系统与常规的空调系统在节能性能方面进行了比较,最后提出了该系统有待解决的一些问题,并对这种系统产品的应用与前景进行了简单的阐述。 相似文献
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Aijun Li Zhen Chen Yuhan Liao Yuhao Liu 《International Journal of Hydrogen Energy》2017,42(32):20857-20867
This study is attempted to analyze the integrated effects of low-carbonized developments for Chinese coal-fired power industry in two cases by extending a hybrid energy-economic model. The first case is energy efficiency improvement without CCS introduction. The second case is direct carbon removal with CCS technology, while coal controlling policy scenario is set as a baseline for comparison. Here oxy-fuel combustion has been selected as the only carbon capture technology due to its great potential in commercialization. Then the ecological co-benefits, environmental benefits, macroeconomic impacts and water saving effects of CO2 abatement from Chinese coal-fired power industry are analyzed. Simulation results show that energy saving and coal controlling policy can create huge ecological, environmental and water saving benefits. However, coal controlling policy also will cause great macroeconomic losses. But due to extra energy consumption, the large-scale commercialization of oxy-fuel CCS technology if without CO2 reuse will cause certain decrease of GDP growth rate and increase water consumption in China. Only when combined with resource usage of the captured CO2, oxy-fuel CCS introduction in China can have some practical application value. 相似文献
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从锅炉运行管理和节能技术着手,对首都航天机械公司燃煤采暖系统进行分析,找出能源利用效率方面存在的问题,提出改进建议,做好节能减排。 相似文献
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我国现役燃煤机组排烟温度普遍偏高,里面蕴含着提高锅炉效率的巨大节能空间。为了更高效地利用余热,并达到控白烟的目的,嘉华发电有限公司7号机组通过改造,采取了利用烟气余热回收加热凝结水的方法,实现了余热回收的初步节能效果。 相似文献
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我国热电联产的发展趋势 总被引:5,自引:0,他引:5
本文论述了我国热电联产的发展过程及其现状,我国热电联产已经从以燃煤为主向循环流化床锅炉电站,燃气蒸气联合循环热电厂,分布式热电冷联产等综合发展;指出热电联产的特点及其优越性,是城市治理大气污染和提高能源综合利用率的重要措施,针对我国目前热电联产还存在的资金来源、行业管理、供热成本及热价等问题,提出了发展我国热电联产的建议,进而论述了我国热电联产的前景和发展趋势。 相似文献
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《全球能源互联网(英文)》2019,2(2):160-179
The development of electrical engineering and electronic, communications, smart power grid, and ultra-high voltage transmission technologies have driven the energy system revolution to the next generation: the energy internet. Progressive penetration of intermittent renewable energy sources into the energy system has led to unprecedented challenges to the currently wide use of coal-fired power generation technologies. Here, the applications and prospects of advanced coal-fired power generation technologies are analyzed. These technologies can be summarized into three categories: (1) large-scale and higher parameters coal-fired power generation technologies, including 620/650/700 °C ultra-supercritical thermal power and double reheat ultra-supercritical coal-fired power generation technologies; (2) system innovation and specific, high- efficiency thermal cycles, which consist of renewable energy-aided coal-fired power generation technologies, a supercritical CO2 Brayton cycle for coal-fired power plants, large-scale air-cooling coal-fired power plant technologies, and innovative layouts for waste heat utilization and enhanced energy cascade utilization; (3) coal-fired power generation combined with poly-generation technologies, which are represented by integrated gasification combined cycle (IGCC) and integrated gasification fuel cell (IGFC) technologies. Concerning the existing coal-fired power units, which are responsible for peak shaving, possible strategies for enhancing flexibility and operational stability are discussed. Furthermore, future trends for coal-fired power plants coupled with cyber-physical system (CPS) technologies are introduced. The development of advanced, coal-fired power generation technologies demonstrates the progress of science and is suitable for the sustainable development of human society. 相似文献
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论述了我国层燃、半悬浮燃烧、悬浮燃烧,各种燃烧方式的优缺点,不同燃料应采用不同的燃烧方式;400多台燃煤工业锅炉测试表明:我国燃煤工业锅炉的运行效率普遍低于设计效率,从2 t/h到20 t/h以上燃煤工业锅炉,随容量的增加锅炉运行效率从68.03%到80.59%,各种能量损失中漏风引起的热损失最大,最高达21%,可采用膜式水冷壁、先进的炉排密封技术和自控技术解决漏风问题,排烟温度热损失次之,最高达5%,采用增加锅炉尾部受热面和新的循环系统来降低排烟温度;用典型案例证明了能效分析应从能源的开采、运输、利用、污染物控制全系统成本考虑,而不应从单一用能设备的效率高低来评价。 相似文献
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太阳能辅助燃煤热发电系统的探讨 总被引:1,自引:0,他引:1
由于太阳能供给的间歇性,单独投资建造的太阳能热发电系统经常会出现设备成本高、利用率低、收益低等问题。因此,利用太阳能热发电系统与常规燃煤发电系统都有汽轮机部分这一特点,将槽式抛物太阳能集热器集成到常规燃煤发电系统中,寻求改造现有燃煤发电系统的新途径。以某300 MW机组为例,利用弗留格尔公式进行变工况计算,然后进行热经济性分析,为太阳能辅助燃煤热发电混合系统的建立提供理论参考。 相似文献