Solar pond power plant and method of operating the same as a part of an
electrical generating system
    1.
    发明授权
    Solar pond power plant and method of operating the same as a part of an electrical generating system 失效
    太阳能发电厂和作为发电系统的一部分运行的方法

    公开(公告)号:US4446700A

    公开(公告)日:1984-05-08

    申请号:US302575

    申请日:1981-09-15

    IPC分类号: F03G6/00 F03G7/02

    摘要: A solar pond power plant has a solar pond with a heat storage layer for storing heat absorbed from solar radiation incident on the pond, and a low-temperature, closed Rankine-cycle turbogenerator operating on heat extracted from the heat storage layer. The turbogenerator has a generating capacity of Q.sub.I watts/m.sup.2 of pond area, this capacity being in excess of Q.sub.e watts/m.sup.2 of pond area where Q.sub.e is the net electrical energy that can be generated by the turbogenerator when heat is extracted from the heat storage layer at substantially the same average rate at which heat is absorbed by the layer. According to the invention, the generating capacity Q.sub.I of the turbogenerator is in the range 2-10 times Q.sub.e, whereby the solar pond power plant can be utilized for peak power requirements of a regional electrical generating system.

    摘要翻译: 一个太阳能池发电厂有一个太阳能池,其中有一个蓄热层,用于储存从太阳辐射入射到池塘上的热量,以及一个低温封闭的兰金循环涡轮发电机,对从储热层提取的热量进行操作。 涡轮发电机具有QI瓦特/平方米池塘面积的发电能力,这个能力超过池塘面积的Qe瓦特/平方米,其中Qe是当从储热器提取热量时由涡轮发电机产生的净电能 层以基本相同的平均速率吸收层的热量。 根据本发明,涡轮发电机的发电量QI在Qe的2-10倍的范围内,由此太阳能池发电厂可以用于区域发电系统的峰值功率要求。

    Method and apparatus for draining liquid working fluid from turbine
cannister of a closed cycle power plant
    2.
    发明授权
    Method and apparatus for draining liquid working fluid from turbine cannister of a closed cycle power plant 失效
    从封闭循环发电厂的涡轮机罐排出液体工作流体的方法和装置

    公开(公告)号:US4471621A

    公开(公告)日:1984-09-18

    申请号:US217082

    申请日:1980-12-16

    CPC分类号: F01K9/00 F01D25/32 F01K25/08

    摘要: Liquid working fluid is drained from the sump of the cannister of a power plant of the type described by transferring the working fluid to the condenser rather than to the boiler. In one embodiment of the invention, liquid in the sump is drained by gravity into an auxiliary boiler which heats the drained liquid producing vapor at substantially the pressure of the condenser; and the resultant vapor is piped directly into the condenser where it condenses and joins the main condensate produced from vapor that has been exhausted from the turbine. In a second embodiment of the invention, the exhaust conduit carrying exhaust vapor from the cannister to the condenser is provided with a loop or elbow that extends below the level of the cannister, and a conduit connects the sump in the cannister to the loop. As a consequence, liquid working fluid in the cannister drains by gravity into the bottom of the loop where it is vaporized or swept by extracting superheat from the exhaust vapor and then returned to the condenser. This arrangement is advantageous in that no additional fuel is utilized to vaporize the drained liquid. Furthermore, the work required of the condenser is reduced because of the reduction in superheat of the vapor entering the condenser.

    摘要翻译: 液体工作流体从通过将工作流体转移到冷凝器而不是到锅炉的所述类型的发电厂的罐的水槽排出。 在本发明的一个实施例中,贮槽中的液体通过重力排放到辅助锅炉中,该辅助锅炉基本上在冷凝器的压力下加热排出的液体产生蒸气; 并将所得蒸气直接输送到冷凝器中,在那里冷凝并连接从已经从涡轮机排出的蒸汽产生的主要冷凝物。 在本发明的第二个实施例中,将从罐到冷凝器的排气蒸气的排气管道设置有在罐的水平面下方延伸的环或弯管,并且导管将罐中的贮槽连接到回路。 因此,罐中的液体工作流体通过重力排入到环的底部,其中通过从废气蒸气中提取过热而蒸发或扫过,然后返回冷凝器。 这种布置是有利的,因为不使用额外的燃料来蒸发排出的液体。 此外,由于进入冷凝器的蒸汽的过热度降低,冷凝器所需的工作减少。