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Multi-energy complementation power generation device capable of improving quality of medium-low temperature geothermal water and method thereof

A complementary power generation and geothermal water technology, applied in geothermal power generation, geothermal energy systems, solar thermal power generation, etc., can solve problems such as low efficiency, high cost of solar energy concentration, and unstable radiation intensity of power generation. To achieve the effect of improving efficiency, improving utilization efficiency and reducing temperature

Pending Publication Date: 2018-08-21
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

Method used

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  • Multi-energy complementation power generation device capable of improving quality of medium-low temperature geothermal water and method thereof

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Embodiment Construction

[0014] 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.

[0015] Such as figure 1 As shown, the present invention is a multi-energy complementary power generation device for improving the grade of medium and low temperature geothermal water, comprising a geothermal well 1, a heater 4 connected to the geothermal water outlet of the geothermal well 1, and a water vapor outlet of the heater 4 connected to a The inlet of the stage flash evaporator 2, the heat transfer working medium outlet of the solar collector 5 is connected to the heat transfer working medium inlet of the superheater 4, and the heat transfer working medium outlet of the superheater 4 is connected to the heat transfer working medium inlet of the solar collector 5 , the steam outlet of the primary flash evaporator ...

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Abstract

The invention discloses a multi-energy complementation power generation device capable of improving quality of medium-low temperature geothermal water and a method thereof. The device comprises a geothermal well and a heater connected with a geothermal water outlet of the geothermal well, wherein a water steam outlet of the heater is connected with the inlet of a primary flash evaporator; a heat transfer working medium outlet of a solar heat collector is connected with a heat transfer working medium inlet of a superheater; a heat transfer working medium outlet of the superheater is connected with a heat transfer working medium inlet of the solar heat collector; a water steam outlet of the primary flash evaporator is connected with the inlet of a steam turbine; the outlet of the steam turbine is connected with the inlet of a condenser; the outlet of the condenser is connected with the inlet of a recharging well; a water outlet of the primary flash evaporator is connected with the inletof a secondary flash evaporator; a water steam outlet of the secondary flash evaporator is connected with a steam supplementing opening of the steam turbine; a water outlet of the secondary flash evaporator is connected with the inlet of a heat exchanger; the outlet of the heat exchanger is connected with the inlet of the recharging well; and the heat exchanger is used for supplying heat to the outside. The invention also discloses a power generation method of the device. Through the multi-energy complementation power generation device capable of improving quality of medium-low temperature geothermal water and the method thereof, the coproduction of heat and power is achieved by geothermal energy; the temperature of the geothermal tail water is reduced; the comprehensive energy utilizationefficiency of the geothermal energy is improved.

Description

technical field [0001] The invention relates to the technical field of geothermal power generation, in particular to a multi-energy complementary power generation device and method for improving the grade of medium-low temperature geothermal water. 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 Becau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G4/00F03G6/06
CPCF03G6/065F03G7/04Y02E10/46Y02E10/10
Inventor 彭烁周贤李启明钟迪黄中王保民王剑钊
Owner HUANENG CLEAN ENERGY RES INST
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