大阳窗PLTP凝结水注管非凝结水排气系统的可行性研究

Annisa Nurlatifah, Anton Purwakusumah
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引用次数: 0

摘要

Wayang Windu地热发电厂位于西爪哇万隆县的Pangalengan,装机容量为227兆瓦,有两台机组发电,并提供给爪哇、马杜拉和巴厘岛电网。储层抽汽含不凝性气体约占抽汽总量的1-1.2%,气体成分为CO2 92%, H2S 2%, NH3 0.1%,残余气体4.9%。通过凝析油注入管道进行非凝析气体排放的可能性研究,是为了减少释放到大气中并重新注入储层的碳,从而保护环境。本研究以大阳温都2号机组为例进行了数值模拟,计算了除气系统进入冷却塔排污电站区域附近凝结水喷射管的不凝气体流量。本研究的分析结果表明,不凝性气体需要较高的凝结水流量才能溶解全部不凝性气体,并且可能产生段塞流态,危及凝结水管道系统,也会使不凝性气体从冷凝器经除气系统排出运行过程不稳定。为了解决这个问题,可以通过将气体去除系统产生的不可冷凝气体输送到闪蒸吸收系统中,并将其不可冷凝气体转化为其他环保产品和发电厂安全的方式来交替使用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Possibilities Study of a Non-condensable Gas Exhaust System through the Condensate Injection Pipe at PLTP Wayang Windu
Wayang Windu Geothermal Power Plant, located in Pangalengan, Bandung regency, West Java with an installed capacity of 227 MWe has two units to generate electricity and deliver to the Jawa, Madura, and Bali grid. The steam extracted from the reservoir contains non-condensable gas of about 1-1.2% of total steam extracted, with the gas composition is CO2 92%, H2S 2%, NH3 0.1%, and residual gasses 4.9%. Possibilities study of a non-condensable gas exhaust through the condensate injection pipe was created as the efforts in the environmental conservation aspect for reducing carbon released to the atmosphere and reinjected back into the reservoir. This study was simulated in Wayang Windu Unit 2 by calculating the non-condensable gas flow rate from the gas removal system into the condensate injection pipe near of cooling tower blowdown power station area. The analysis result of this study indicates that the non-condensable gas requires a higher flow rate of condensate to dissolve the entire non-condensable gas, and may cause the slug flow pattern which would endanger the condensate pipeline system also destabilize the non-condensable gas exhaust operation process from the condenser through the gas removal system. To deal with this problem, the possibility of exhausting the non-condensable gas produced by the gas removal system can be alternated by flowing its non-condensable gas into a flash absorber system and converting its non-condensable gas into other eco-friendly products and power plant safe.
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