Geothermal energy and solar energy coupling power generation device and method
A technology of power generation device and solar energy, applied in geothermal power generation, solar thermal power generation, solar thermal energy and other directions, can solve problems such as low efficiency, and achieve the effect of improving efficiency, improving the quality of geothermal energy, and improving the efficiency of geothermal power generation
Pending Publication Date: 2019-01-25
HUANENG CLEAN ENERGY RES INST
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[0004] The purpose of the present invention is to provide a geothermal energy and solar energy coupling power generation device and method, which solves the problem of low efficiency caused by geothermal energy independent power generation limited by geothermal water temperature
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[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0023] Such as figure 1 As shown, a geothermal energy and solar energy coupling power generation device provided by the present invention includes a geothermal well 1, a primary flash evaporator 2, a secondary flash evaporator 3, a superheater 4, a solar collector 5, a steam turbine 6, and a condenser 7 , heat exchanger 8 and recharge well 9, wherein the geothermal water outlet of geothermal well 1 is connected to the inlet of primary flash evaporator 2, and the water vapor outlet of primary flash evaporator 2 is connected to the water vapor inlet of superheater 4, and the superheater The heat transfer working medium inlet of 4 is connected to the heat transfer working medium outlet of solar collector 5, and the high temperature water vapor outlet of superheater 4 is connected to the inlet of steam turbine 6;
[0024] The heat transfer working medium outlet ...
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The invention provides a geothermal energy and solar energy coupling power generation device and a method thereof. The geothermal energy and solar energy coupling power generation device comprises a geothermal well, a first-stage flash evaporator, a super heater, a solar heat collector, a steam turbine, a heat exchanger and a water reservoir, wherein a geothermal water outlet of the geothermal well is connected with an inlet of the first-stage flash evaporator, a water vapor outlet of the first-stage flash evaporator is connected with a water vapor inlet of the super heater, a heat-transferring working medium inlet of the super heater is connected with an heat-transferring working medium outlet of the solar heat collector, and a high-temperature water vapor outlet of the super heater is connected with the inlet of the steam turbine; the heat-transferring working medium outlet of the super heater is connected with the heat-transferring working medium inlet of the solar heat collector; awater outlet of the first-stage flash evaporator is connected with a hot side inlet of the heat exchanger, a hot side outlet of the heat exchanger is connected with the inlet of the water reservoir,and a cold side of the heat exchanger is connected with an external equipment. The geothermal energy and solar energy coupling power generation device has the advantages that a geothermal energy gradeis improved through the solar heat collector, and thereby improving the geothermal energy power generation efficiency.
Description
technical field [0001] The invention relates to the technical field of geothermal power generation, in particular to a device and method for coupling geothermal energy and solar energy to generate electricity. Background technique [0002] Both solar power generation and geothermal power generation are renewable clean energy power generation, but both have obvious defects. The cost of concentrating solar energy is high, and the power generation is limited by the instability of radiation intensity; while the cost of geothermal power generation is low, the power generation is limited by the maximum temperature, and the efficiency is not high. For geothermal energy, introducing a high-grade energy as its top cycle will benefit the power output of the original system and improve the thermal efficiency of the system to a certain extent; while for solar energy, geothermal energy is a stable energy output, which will be able to overcome Because of the unstable power generation out...
Claims
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IPC IPC(8): F03G4/00F03G6/06F01D15/10F01K11/02F24T10/20F24S20/40
CPCF01D15/10F01K11/02F03G6/06F03G7/04Y02E10/10Y02E10/46F24T10/20
Inventor 彭烁周贤李启明钟迪王保民
Owner HUANENG CLEAN ENERGY RES INST
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