System and method for efficiently generating power from steam
A power generation system and water vapor technology, which is applied in steam applications, steam engine devices, machines/engines, etc., can solve the problems of large cooling power consumption, waste of latent heat of water vapor, and no water vapor utilization, and achieve effective utilization and improved utilization. rate effect
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[0033] Example one
[0034] See figure 2 , The present invention discloses a high-efficiency power generation system for water and steam. The system includes a first power generation system and a second power generation system. The first power generation system includes one or more first power generation devices, and the second power generation system includes one or more An organic Rankine cycle system. In this embodiment, the first power generation system includes a first power generation device, and the second power generation system includes an organic Rankine cycle system.
[0035] The first power generation device includes a steam expander 7, a first generator 8 connected to the steam expander 7, and pressurized water vapor (water vapor is superheated or saturated water vapor, usually residual pressure water vapor, Its pressure is generally required to be greater than or equal to 2 barG, that is, 2 kg per square centimeter gauge) connected to the inlet of the steam expander...
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[0040] Example two
[0041] See image 3 The difference between this embodiment and the first embodiment is that in this embodiment, the first power generation system includes a plurality of first power generation devices connected in series, and the second power generation system includes a plurality of organic Rankine cycle systems connected in series.
[0042] The pressurized water vapor is connected to the inlet of the steam expander 7 as the first power generation device of the first stage, and the water vapor is discharged from the outlet of the steam expander 7 of the first power generation device as the last stage and enters the second power generation system. The pressure of the steam discharged from the last stage steam expander 7 is greater than or equal to -0.6 barG and less than or equal to 1 barG.
[0043] The evaporators 3 of each organic Rankine cycle system are sequentially connected in series to form a multi-stage expansion; except for the last stage, the pressure o...
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[0056] Example three
[0057] See Figure 4 The difference between this embodiment and the first embodiment is that, in this embodiment, the first power generation system includes a plurality of first power generation devices connected in parallel, and the second power generation system includes a plurality of organic Rankine cycle systems, some of which are organic The Ken cycle system is connected in parallel.
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