Coupling power generation device and method capable of heating geothermal tail water by utilizing solar energy
A power generation device and geothermal tail water technology, which is applied in the direction of solar thermal power generation, geothermal power generation, mechanical power generation by solar energy, etc., can solve the problems of unstable radiation intensity of power generation, low efficiency, and high cost of solar concentration , to achieve the effect of improving the comprehensive energy utilization efficiency
Pending Publication Date: 2018-06-29
HUANENG CLEAN ENERGY RES INST
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Problems solved by technology
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
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[0013] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0014] Such as figure 1 Shown, the present invention utilizes solar energy to heat the coupling power generation device of geothermal tail water, comprises geothermal well 1; Connect the inlet of the first steam turbine 6, the outlet of the first steam turbine 6 connects the inlet of the first condenser 7, the outlet of the first condenser 7 connects the inlet of the recharge well 10, and the water outlet of the primary flash evaporator 2 connects the secondary flash The inlet of the vaporizer 3, the water vapor outlet of the secondary flash evaporator 3 is connected to the steam inlet of the first steam turbine 6, the water outlet of the secondary flash evaporator 3 is connected to the water inlet of the solar heater 4, ...
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The invention provides a coupling power generation device and method capable of heating geothermal tail water by utilizing solar energy. The coupling power generation device comprises a geothermal well and a primary flash evaporator, wherein the primary flash evaporator is connected with a geothermal water outlet of the geothermal well; a water vapor outlet of the primary flash evaporator is connected with the inlet of a first steam turbine; the outlet of the first steam turbine is connected with the inlet of a first condenser; the outlet of the first condenser is connected with the inlet of arecharge well; a water outlet of the primary flash evaporator is connected with the inlet of a secondary flash evaporator; a water vapor outlet of the secondary flash evaporator is connected with a steam supplementing port of the first steam turbine; a water outlet of the secondary flash evaporator is connected with a water inlet of a solar heater; a heat transfer working medium outlet of a solarheat collector is connected with a heat transfer working medium inlet of the solar heater; a heat transfer working medium outlet of the solar heater is connected with the heat transfer working mediuminlet of the solar heat collector; a water vapor outlet of the solar heater is connected with the inlet of a second steam turbine; the outlet of the second steam turbine is connected with the inlet of a second condenser; and the outlet of the second condenser is connected with the inlet of the recharge well. The invention further discloses the coupling power generation method of the coupling power generation device. By adoption of the coupling power generation device and method, the comprehensive gradient utilization of geothermal energy can be achieved, and the comprehensive energy utilization ratio of geothermal energy can be improved.
Description
technical field [0001] The invention relates to the technical field of geothermal power generation, in particular to a coupled power generation device and method for heating geothermal tail water by using solar energy. 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 the power generation output...
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IPC IPC(8): F03G6/06F03G4/00
CPCF03G6/06F03G7/04Y02E10/46Y02E10/10
Inventor 彭烁周贤李启明钟迪黄中王保民王剑钊
Owner HUANENG CLEAN ENERGY RES INST