共查询到17条相似文献,搜索用时 265 毫秒
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在介绍压缩空气系统的全生命周期成本的基础上,应用测试系统对不同类型工厂压缩空气系统进行了流量、空压机输入功率和压力测试,对压缩空气系统的不正确使用、系统控制和泄露等方面的优化潜力进行了深入研究和分析。通过对50个系统的分析数据进行统计,平均节能潜力为13.2%,证明了系统全面测试分析对于正确选择压缩空气系统的优化技术的重要性。 相似文献
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随着我国“碳达峰”和“碳中和”目标的提出,意味着高能耗企业不仅要为能源直接消耗买单,还要为超标的碳含量买单。压缩空气具有洁净、易调节、输送便捷的特点,因此被广泛使用,据不完全统计,空气压缩机用电量占全国发电总量的9.5%~10%,在工业领域空压机占企业用电的10%~35%之间,个别行业占比65%之多。从压缩空气零放散、压缩空气系统降压运行、优化控制系统出发,对影响压缩空气节能潜力进行探讨,以适应当下的节能减排要求。 相似文献
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分析了压缩空气从压缩到输送过程的能量消耗损失,得出压缩过程损失约占总耗能的44%,卸载损失约占9%、降压使用损失约占3%,此外,泄露损失、无热再生干燥损失、管路输送损失以及环境温降损失都有不同程度的比例。针对以上各类损失,本文从设备选型、系统管路设计与安装以及优化运行3个方面提出了一系列节约能源、降低消耗的措施及改进方法,对提高能源利用效率、降低消耗有一定参考意义。 相似文献
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The vacuum sanitation is the safe and sound disposal approach of human excreta under the specific environments like flights, high speed trains and submarines. However, the propulsive force of current systems is not adjustable and the energy consumption does not adapt to the real time sewerage requirement. Therefore, it is important to study the sewerage force adjustment to improve the energy efficiency. This paper proposes an energy conservation design in vacuum sanitation systems with pneumatic ejector circuits. The sewerage force is controlled by changing the systematic vacuum degree according to the amount of the excreta. In particular, the amount of the excreta is tested by liquid level sensor and mass sensor. According to the amount of the excreta, the relationship between the excreta amount and the sewerage force is studied to provide proper propulsive force. In the other aspect, to provide variable vacuum degrees for different sanitation requirements, the suction and discharge system is designed with pneumatic vacuum ejector. On the basis of the static flow-rate characteristics and the vacuum generation model, the pressure response in the ejector circuit is studied by using the static flow rate characteristics of the ejector and air status equation. The relationship is obtained between supplied compressed air and systematic vacuum degree. When the compressed air is supplied to the ejector continuously, the systematic vacuum degree increases until the vacuum degree reaches the extreme value. Therefore, the variable systematic vacuum degree is obtained by controlling the compressed air supply of the ejector. To verify the effect of energy conservation, experiments are carried out in the artificial excreta collection, and the variable vacuum-degree design saves more than 30% of the energy supply. The energy conservation is realized effectively in the new vacuum sanitation systems with good application prospect. The proposed technology provides technological support for the energy conservation of vacuum sanitation systems. 相似文献
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气动系统的能量消耗评价体系及能量损失分析 总被引:12,自引:0,他引:12
在分析基于空气消耗量的现有能量消耗评价体系的基础上,阐述一种新的能量消耗评价量——气动功率。气动功率定义为单位时间内流过指定截面的压缩空气所含有的有效能,而有效能是以大气温度和压力状态为外界基准,流动压缩空气具有的对外做功能力。该有效能是一个相对于大气状态基准的相对量,建立在气动系统都工作在大气环境下这样一个事实基础上。基于气动功率概念,侧重分析导致气动功率损失的因素,讨论气动系统能量损失机理及各个构成环节的损失情况,为明确节能目标奠定理论基础。 相似文献
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以大连某LED项目为例,对改项目的压缩空气系统进行节能分析,根据分析结果来做热回收设计,以达到节能效果。 相似文献