Design and test of LNG air mixing device for biogas peak shaving

doi:10.11949/j.issn.0438-1157.20150764

CIESC Journal ›› 2015, Vol. 66 ›› Issue (S2): 405-412.DOI: 10.11949/j.issn.0438-1157.20150764

Previous Articles Next Articles

Design and test of LNG air mixing device for biogas peak shaving

HUANG Xiaomei^1,2, LIU Xiaohe^1,2, ZHANG Jing³

1. Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, Chongqing University, Chongqing 400045, China;
2. National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing 400045, China;
3. Qingdao Energy and China Resources Gas Limited, Qingdao 266071, Shandong, China

Received:2015-06-01 Revised:2015-07-15 Online:2015-08-31 Published:2015-08-31
Supported by:
supported by the National Science & Technology Pillar Program during the Twelfth Five-year Plan Period(2013BAJ11B05).

沼气调峰用LNG混空装置的设计与测试

黄小美^1,2, 刘晓赫^1,2, 张婧³

1. 重庆大学三峡库区生态环境教育部重点实验室, 重庆 400045;
2. 重庆大学低碳绿色建筑国际联合研究中心, 重庆 400045;
3. 青岛能源华润燃气有限公司, 山东青岛 266071

通讯作者: 刘晓赫
基金资助:
十二五国家科技支撑计划课题(2013BAJ11B05)。

Abstract

Abstract:

Using the gasified LNG mixing air as source gas of biogas peak shaving was proposed as a solution that the biogas output is unstable.In order to obtain the mixed gas,a LNG air ejector mixer was designed and processed,and the ejector mixer was investigated experimentally in the simulation of actual production for obtaining the operating characteristics.The results indicate that the air and gas mixing ratio markedly rises with the increase of inlet pressure when the outlet pressure is constant,but the result is opposite when the inlet pressure is constant.Under the condition of interacting by both the inlet and outlet pressure,the air and gas mixing ratio drops with the increase of outlet pressure when the inlet pressure increases,and the tendency of dropping is step-down.But the tendency is completely opposite when the outlet pressure increases.In order to match the outlet pressure of biogas fermentation tank,the ejector mixer should keep the inlet pressure of 0.25 MPa.

Key words: biogas, natural gas, mixer, design, experimental validation

摘要：

针对沼气产气量不稳定的问题,提出了采用LNG气化掺混空气作为沼气调峰气源的解决方案,设计并加工了一种LNG引射空气混合器,模拟生产实际对引射混合器的运行特性进行了实验研究。结果表明在引射器出口压力一定时,混气比(空气:天然气)随着进口压力的增加而显著提升;进口压力一定时,混气比随着出口压力的增加而逐渐减小;考虑进出口压力对混气比的共同作用时,提高进口压力,混气比随出口压力升高而降低的趋势减缓;提高出口压力,混气比随进口压力升高而上升的趋势加剧。为获得与沼气发酵罐相同的出口压力,引射器进口压力应为0.25 MPa。

关键词: 沼气, 天然气, 混合器, 设计, 实验验证

CLC Number:

S216.4

HUANG Xiaomei, LIU Xiaohe, ZHANG Jing. Design and test of LNG air mixing device for biogas peak shaving[J]. CIESC Journal, 2015, 66(S2): 405-412.

黄小美, 刘晓赫, 张婧. 沼气调峰用LNG混空装置的设计与测试[J]. 化工学报, 2015, 66(S2): 405-412.

References 20

[1]	Wang Fei(王飞),Cai Yaqing(蔡亚庆),Qiu Huanguang(仇焕广).Current status,incentives and constraints for future development of biogas industry in China[J].Transactions of the CSAE(农业工程学报),2012,28(1):184-189.
[2]	Zhao Wei(赵伟).Research of interchageability of the mixture of biogas and natural gas[D].Chongqing:Chongqing University,2013.
[3]	Zhao Wei(赵伟),Huang Xiaomei(黄小美),Tan Shunmin(谭顺民).Discussion on feasibility of injecting biogas into natural gas network[J].Gas&Heat(煤气与热力),2012,32(12):B08-B11.
[4]	Li Dong(李东),Li Lianhua(李连华),Ma Longlong(马隆龙),et al.The dry anaerobic digestion study on rice straw in Southeast China[J].Acta Energiae Solaris Sinica(太阳能学报),2008,29(6):754-758.
[5]	Li Wenjing(李文静),Zhang Tong(张彤),Li Wei(李伟),et al.Study on the characteristics of anaerobic digestion of mixed chicken manure and rice straw[J].Journal of Northwest A&F University:Nat.Sci.Ed.(西北农林科技大学学报:自然科学版),2011,39(1):137-143.
[6]	Liu Dejiang(刘德江).Study on property and application of anaerobic digestion for livestock dung[D].Yangling:Northwest A&F University,2004.
[7]	Zhou Xianlong(周宪龙),Li Qiang(李强),Huang Tao(黄涛),et al.Effect of different fermenting materials on household biogas production[J].Journal of Agriculture(农学学报),2012,(12):57-61.
[8]	Xiong Xingguo(熊兴国).Technical feasibility of application of mixed gas(liquefied natural gas+air)mixed with coke oven gas as a transitional gas source in Zhuzhou City[J].Urbon Gas(城市燃气),2004,(5):16-21.
[9]	Zhu Bowei(祝博伟).Test of natural gas appliance using mixture of reformed LPG and LPG[J].Gas&Heat(煤气与热力),2009,29(4):B31-B34.
[10]	Song Shiwen(宋士文),Du Yongmin(杜永民),Liang Zhe(梁喆).The natural gas mixing carbon dioxide makes up the gasification source as the methane supply station[J].Energy Technology(能源技术),2010,31(6):341-342.
[11]	Liu Yong(刘勇).Research coke oven gas as gas source of natural gas[D].Anshan:University of Science and Technology Liaoning,2012.
[12]	Lin Dong(林冬),Deng Maozhong(邓茂忠),Li Xinfeng(李新峰).Application of mixed gas blended with LNG at Shaoguan Iron and Steel Company[J].Southern Metals(南方金属),2012,(5):45-47.
[13]	Sun Boshi(孙伯师).The feasibility of mixed gas of natural gas and air mixed with coke oven gas[J].Science and Technology(科技展望),2015,(6):152.
[14]	Meng Xiang(孟祥),Chen Boyang(陈伯扬),Han Yanlai(韩燕来),et al.Test of medium pressure immediate supply for pressure mixing of natural gas and air[J].Gas&Heat(煤气与热力),2003,23(10):597-599.
[15]	Cao Xiong(曹雄),Feng Xiaodong(冯晓东),Tan Xianjun(谭贤君),et al.Blending technique of natural gas and its application[J].Oil & Gas Storage and Transportation(油气储运),2009,(2):5,10-13,70,79.
[16]	Huang Songli(黄颂丽),Guo Quanwen(郭全文),Chen Shaoxin(陈绍新),et al.Gas mixing device and its application[J].Gas&Heat(煤气与热力),2011,31(9):A33-A35.
[17]	Liu Wu(刘武),Ji Guowen(纪国文),Ji Hongshou(季宏寿),et al.Analysis of natural gas interchangeability under the condition of multiple gas mixed transportation:a case study in natural gas pipe network system of Zhejiang province[J].Chemical Engineering of Oil & Gas(石油与天然气化工),2014,43(4):401-404.
[18]	Zhang Mingyi(张明益),Li Jing(李静),Zou Yingyong(周应勇),et al.Ejector technology and its application in dispose processing of natural gas[J].Hans Journal of Chemical Engineering and Technology(化学工程与技术),2013,(3):38-41.
[19]	Wang Yudong(王雨冬).Study of mixture parameters and process of liquefied petroleum gas mixing air[D].Shandong:Shandong University,2005.
[20]	Qiao Lishan(乔立山),Wang Yulan(王玉兰),Zeng Jinguang(曾锦光).Discussion on methods of curve fitting in experimental data processing[J].Journal of Chengdu University of Technology:Science & Technology Edition(成都理工大学学报:自然科学版),2004,31(1):91-95.

Design and test of LNG air mixing device for biogas peak shaving

沼气调峰用LNG混空装置的设计与测试

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References 20

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Zhewen CHEN, Junjie WEI, Yuming ZHANG. System integration and energy conversion mechanism of the power technology with integrated supercritical water gasification of coal and SOFC [J]. CIESC Journal, 2023, 74(9): 3888-3902.
[2]	Cong QI, Zi DING, Jie YU, Maoqing TANG, Lin LIANG. Study on solar thermoelectric power generation characteristics based on selective absorption nanofilm [J]. CIESC Journal, 2023, 74(9): 3921-3930.
[3]	Yuyuan ZHENG, Zhiwei GE, Xiangyu HAN, Liang WANG, Haisheng CHEN. Progress and prospect of medium and high temperature thermochemical energy storage of calcium-based materials [J]. CIESC Journal, 2023, 74(8): 3171-3192.
[4]	Ruihang ZHANG, Pan CAO, Feng YANG, Kun LI, Peng XIAO, Chun DENG, Bei LIU, Changyu SUN, Guangjin CHEN. Analysis of key parameters affecting product purity of natural gas ethane recovery process via ZIF-8 nanofluid [J]. CIESC Journal, 2023, 74(8): 3386-3393.
[5]	Zhaolun WEN, Peirui LI, Zhonglin ZHANG, Xiao DU, Qiwang HOU, Yegang LIU, Xiaogang HAO, Guoqing GUAN. Design and optimization of cryogenic air separation process with dividing wall column based on self-heat regeneration [J]. CIESC Journal, 2023, 74(7): 2988-2998.
[6]	Jinbo JIANG, Xin PENG, Wenxuan XU, Rixiu MEN, Chang LIU, Xudong PENG. Study on leakage characteristics and parameter influence of pump-out spiral groove oil-gas seal [J]. CIESC Journal, 2023, 74(6): 2538-2554.
[7]	Yongyao SUN, Qiuying GAO, Wenguang ZENG, Jiaming WANG, Yifei CHEN, Yongzhe ZHOU, Gaohong HE, Xuehua RUAN. Design and optimization of membrane-based integration process for advanced utilization of associated gases in N₂-EOR oilfields [J]. CIESC Journal, 2023, 74(5): 2034-2045.
[8]	Shanghao LIU, Shengkun JIA, Yiqing LUO, Xigang YUAN. Optimization of ternary-distillation sequence based on gradient boosting decision tree [J]. CIESC Journal, 2023, 74(5): 2075-2087.
[9]	Bimao ZHOU, Shisen XU, Xiaoxiao WANG, Gang LIU, Xiaoyu LI, Yongqiang REN, Houzhang TAN. Effect of burner bias angle on distribution characteristics of gasifier slag layer [J]. CIESC Journal, 2023, 74(5): 1939-1949.
[10]	Zedong WANG, Zhiping SHI, Liyan LIU. Numerical simulation and optimization of acoustic streaming considering inhomogeneous bubble cloud dissipation in rectangular reactor [J]. CIESC Journal, 2023, 74(5): 1965-1973.
[11]	Mingchuan LI, Shuanshi FAN, Fuhai XU, Huidong LU, Xiaojun LI. Existence and Laplace transform of the solution to Stefan phase change model in thermal dissociation hydrate [J]. CIESC Journal, 2023, 74(4): 1746-1754.
[12]	Wenxuan XU, Jinbo JIANG, Xin PENG, Rixiu MEN, Chang LIU, Xudong PENG. Comparative study on leakage and film-forming characteristics of oil-gas seal with three-typical groove in a wide speed range [J]. CIESC Journal, 2023, 74(4): 1660-1679.
[13]	Laiming LUO, Jin ZHANG, Zhibin GUO, Haining WANG, Shanfu LU, Yan XIANG. Simulation and experiment of high temperature polymer electrolyte membrane fuel cells stack in the 1—5 kW range [J]. CIESC Journal, 2023, 74(4): 1724-1734.
[14]	Jiyuan LI, Jinwang LI, Liuwei ZHOU. Heat transfer performance of cold plates with different turbulence structures [J]. CIESC Journal, 2023, 74(4): 1474-1488.
[15]	Feng WANG, Yu CHEN, Hongyan PEI, Dongdong LIU, Jing ZHANG, Lixin ZHANG. Design, synthesis and anti-fungal activity of 1,2,4-oxadiazole derivatives [J]. CIESC Journal, 2023, 74(3): 1390-1398.