中国首套LNG液力透平系统开发与工业化测试
发布时间：2018-12-19 12:26
【摘要】：天然气液化装置中采用低温液力透平替代传统LNG或MR混合冷剂J-T节流阀实现节流降压是提高天然气液化装置效率的先进技术,也是全球天然气液化技术发展的一种趋势。我国目前已拥有超过136座的天然气液化工厂,但尚未实现低温液力透平的国产化和工业化应用。为此,通过对LNG液力透平工艺及控制系统开发、本体水力模型优化设计、样机结构设计与制造等关键技术进行攻关,开发了国内首套LNG液力透平系统(设计流量为40 m3/h),用于回收LNG冷箱出口LNG压力能。LNG液力透平系统在中海石油广东液化天然气有限公司天然气液化装置完成了系统启停、变流量、变转速多工况工业化测试。测试结果表明:1样机本体运转平稳,低温机械性能良好,运行性能参数基本达到设计预期;2工艺及控制系统、变频发电系统设计可行,可与已有天然气液化装置上的LNG产品J-T节流阀自动平稳切换使用,平均可提高LNG产量2%,发电8.3 k W。
[Abstract]:It is an advanced technology to improve the efficiency of natural gas liquefaction plant to use cryogenic hydraulic turbine instead of traditional LNG or MR mixed coolant J-T throttle valve to achieve throttling pressure reduction. It is also a trend of the development of natural gas liquefaction technology in the world. At present, China has more than 136 natural gas liquefaction plants, but has not yet realized the localization and industrial application of cryogenic hydraulic turbine. For this reason, through the development of LNG hydraulic turbine process and control system, the optimization design of bulk hydraulic model, the design and manufacture of prototype structure, the first set of domestic LNG hydraulic turbine system (design flow rate is 40 m3 / h) is developed. The LNG hydraulic turbine system is used to recover the LNG pressure energy at the outlet of the LNG cold box. The LNG hydraulic turbine system has completed the industrial test of the system starting and stopping, changing the flow rate and changing the speed of the system in the natural gas liquefaction plant of CNOOC Guangdong Liquefaction Natural Gas Co., Ltd. The test results show that: 1 the bulk of the prototype runs smoothly, the mechanical properties at low temperature are good, and the operating performance parameters basically meet the design expectations; (2) the design of technology and control system and frequency conversion power generation system is feasible, and it can automatically and smoothly switch with the existing LNG product J-T throttle valve on the natural gas liquefaction device, and can increase the average LNG output by 2 and generate 8.3 kW on average.
【作者单位】： 中海石油气电集团有限责任公司技术研发中心;大连深蓝泵业有限公司;中国石油大学(北京);
【基金】：工业和信息化部高技术船舶科研计划项目“LNG液力透平研制”(编号:工信部联装[2014]503号) 中海石油气电集团有限责任公司科研项目“LNG潜液泵与液力透平国产化研究”(编号:QDKY-2011-YFZX-04)
【分类号】：TE96
本文编号：2386917
[Abstract]:It is an advanced technology to improve the efficiency of natural gas liquefaction plant to use cryogenic hydraulic turbine instead of traditional LNG or MR mixed coolant J-T throttle valve to achieve throttling pressure reduction. It is also a trend of the development of natural gas liquefaction technology in the world. At present, China has more than 136 natural gas liquefaction plants, but has not yet realized the localization and industrial application of cryogenic hydraulic turbine. For this reason, through the development of LNG hydraulic turbine process and control system, the optimization design of bulk hydraulic model, the design and manufacture of prototype structure, the first set of domestic LNG hydraulic turbine system (design flow rate is 40 m3 / h) is developed. The LNG hydraulic turbine system is used to recover the LNG pressure energy at the outlet of the LNG cold box. The LNG hydraulic turbine system has completed the industrial test of the system starting and stopping, changing the flow rate and changing the speed of the system in the natural gas liquefaction plant of CNOOC Guangdong Liquefaction Natural Gas Co., Ltd. The test results show that: 1 the bulk of the prototype runs smoothly, the mechanical properties at low temperature are good, and the operating performance parameters basically meet the design expectations; (2) the design of technology and control system and frequency conversion power generation system is feasible, and it can automatically and smoothly switch with the existing LNG product J-T throttle valve on the natural gas liquefaction device, and can increase the average LNG output by 2 and generate 8.3 kW on average.
【作者单位】： 中海石油气电集团有限责任公司技术研发中心;大连深蓝泵业有限公司;中国石油大学(北京);
【基金】：工业和信息化部高技术船舶科研计划项目“LNG液力透平研制”(编号:工信部联装[2014]503号) 中海石油气电集团有限责任公司科研项目“LNG潜液泵与液力透平国产化研究”(编号:QDKY-2011-YFZX-04)
【分类号】：TE96
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