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1. 发明授权

US5003782A Gas expander based power plant system 失效
标题翻译：基于气体膨胀机的发电厂系统
公开(公告)号：US5003782A
公开(公告)日：1991-04-02
申请号：US549090
申请日：1990-07-06
申请人： Zoran Kucerija
发明人： Zoran Kucerija
IPC分类号： F01D11/04 , F02C1/00 , F02C3/32 , F17D1/075
CPC分类号： F02C1/00 , F01D11/04 , F02C3/32 , F17D1/075 , F05D2260/601
摘要： A gas expander based power plant system for generating electricity at a pressure reducing station of a gas transmission pipeline is disclosed where gas at high pressure is being delivered to the distribution or gas utilization system; by means of pressure reduction with a gas expander system capable of accommodating fluctuating high pressure gas conditions and maintaining desired lower pressure gas conditions, which comprise the steps of generating steam, condensing the steam in a heat exchanger and using the heat of condensation of the steam to heat a portion of high pressure gas in a controlled manner to maintain the required gas conditions of the lower pressure line throughout the range of operation, and passing the high pressure gas through a gas expander to drive an electrical generator. In one embodiment of the system, a portion of the gas fuel supplied to a steam generator is utilized as a motive gas supply for a gas ejector which creates a vacuum in the shaft sealing chamber of the gas expander, evacuates the leakage gas thereby preventing the release of gas to the surrounding, and combines evacuated gas with remainder of gas fuel for combustion in a steam generator.
摘要翻译：公开了一种用于在气体输送管道的减压站发电的基于气体膨胀机的发电厂系统，其中高压气体被输送到分配或气体利用系统; 通过使用能够适应波动的高压气体条件并维持所需的低压气体条件的气体膨胀机系统的压力降低，其包括产生蒸汽的步骤，在热交换器中冷凝蒸汽并使用蒸汽的冷凝热以受控的方式加热一部分高压气体，以在整个操作范围内保持低压管线的所需气体条件，并使高压气体通过气体膨胀器以驱动发电机。在系统的一个实施例中，供应给蒸汽发生器的气体燃料的一部分被用作气体喷射器的运动气体供应器，其在气体膨胀器的轴密封室中产生真空，排出泄漏气体，从而防止将气体释放到周围，并将抽真空气体与余下的燃气合并在蒸汽发生器中燃烧。

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