共查询到20条相似文献,搜索用时 78 毫秒
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本文介绍了天然气增压领域几种常见的增压机种类的特点及其应用情况,并结合60MW级天然气分布式能源项目的具体实例,在技术指标、设备可靠性、占地面积等方面对离心式增压机、往复式增压机、螺杆式增压机进行了比较,为当前快速发展的天然气分布式能源站项目中增压机的配套选型提供参考依据。 相似文献
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忻奇峰 《能源技术(上海)》2006,27(5):224-225,235
分析使用不同燃料对燃气轮机运行经济性和运行管理的影响,从完善系统、可持续发展的角度出发,提出增设配套天然气增压装置,并在实施后取得相应的成绩和经验教训。 相似文献
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本文通过对用柴油机改装的电控增压天然气发动机的试验研究,分析改装后的天然气发动机的结构参数和运行参数对整机性能的影响,从而为进一步提高发动机性能提供试验依据。 相似文献
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燃机电厂天然气调压站配置探讨 总被引:1,自引:0,他引:1
天然气用于燃气轮机发电在我国越来越多,但燃气轮机对天然气的压力、温度等都有一定的要求。天然气调压站是天然气的主要处理系统,直接影响到燃气轮机的安全稳定运行。根据已投产燃气轮机的运行经验,对天然气调压站的系统设备配置作了分析探讨,对设备提出了经济合理地配置的建议。 相似文献
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9FA燃气轮机正常的天然气供气压力在4.0MPa及以上,那么在供气压力为2.0MPa时机组能否实现降压运行呢?通过对某厂9FA燃气轮机的供气降压运行实践证明,这种技术是可行的。9FA燃机的供气降压运行技术,拓宽了机组运行的供气范围,对某些天然气压力不足的地区有着现实的意义。 相似文献
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Younes Noorollahi Golara Ghasemi Farshad Kowsary Soheil Roumi Saeid Jalilinasrabady 《国际可持续能源杂志》2019,38(8):773-793
In this paper, a series of works are conducted to study the effect of replacing natural gas burning heaters by a ground source heat pumps (GSHPs) to prevent natural gas freezing in the pressure regulating stations. In fact, the pressure drop causes a great temperature drop that can block out the pipeline and it is very crucial to control the phenomenon. Firstly, a conventional heater in the gas pressure drop station of Damavand city is selected as a case study. Then, a shell and tube heat exchanger coupled with GSHP is modelled to replace the conventional heater for eliminating the natural gas consumption in heaters. Finally, consumed energy, costs, and greenhouse gasses emissions are compared with the conventional system. Some main findings from the model show that: (1). Based on the GS2000 software results, the GSHP pipe trench is 601?m which are 7% less than the calculated data. (2). considering different inflation rates (15%-30%), the payback time would change between 4.5 and 7.5 years. (3). Due to the reduction in fossil fuel consumption, the CO2 emission would be reduced by 47%. 相似文献
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本文以天然气分布式能源站输入侧燃气锅炉出口蒸汽压力控制为研究对象,针对其大滞后性、大惯性的对象特性,提出了一种基于非参数模型含纯时延的DMC(动态矩阵控制)算法,将该算法运用到能源站输入侧蒸汽压力控制系统中,由MATLAB仿真表明,采用预测控制的蒸汽压力控制系统的稳定性、适应性、鲁棒性以及抗干扰性均优于传统PID控制,蒸汽压力的控制品质得到很大提升,可以设计适用于天然气分布式能源站输入侧燃气锅炉出口蒸汽压力控制。 相似文献
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为结合上海市重大工程项目建设,进一步改善天然气引射调峰装置性能,围绕低压煤气储气罐在天然气榆配调峰中的应用问题开展低压煤气储气罐配套可变喉部截面引射器系统用于天然气储气调峰的模拟研究,为低压煤气储气罐的改造利用提供技术支撑。 相似文献
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张友民 《电网与水力发电进展》2002,18(1):24-25
阐述了石泉水电厂 1 #F油压装置的选型及改造过程 ,对新油压装置的系统结构、功能进行了简单介绍 ,针对现场安装调试中遇到的问题及解决办法进行了分析论述 相似文献
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The main objective of natural gas pressure reduction station or city gate stations (CGSs) is to adjust gas pressure within a standard range for home usage. CGSs usually utilize heaters for pressure tuning, which generally consume a considerable amount of energy. In this paper, the effect of six influential parameters, namely, the length of gas-coil, the diameter of gas-coil, the radius of heater shell, length of heater shell, fire tube diameter, and length, on the amount of fuel consumption and thermal efficiency is investigated using Sobol statistical sensitivity analysis. The results show that gas-coil length and diameter are not effective in fuel consumption and thermal efficiency. In contrast, increasing the heater shell radius, heater shell length, and fire tube radius has the same effect as they cause a linear increase in fuel consumption. According to results taken from Sobol analysis, they similarly have an influence of 19%–23% on fuel consumption and 21%–22% on thermal efficiency. Finally, it was revealed that the effect of fire tube length on fuel consumption and thermal efficiency of the heater was 37% and 35%, respectively. 相似文献