Multi-energy complementary electric generation system and method utilizing geothermal water for preheating condensate water
A power generation system and geothermal water technology, applied in the field of multi-energy complementary power generation systems, can solve the problems of low efficiency, unstable radiation intensity of power generation, high cost of solar energy concentration, etc., and achieve the effect of increasing power output
Pending Publication Date: 2018-07-10
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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[0014] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings.
[0015] Such as figure 1 As shown, the multi-energy complementary power generation system of the present invention using geothermal water to preheat condensed water includes: a solar concentrating heat collector 1, a superheater 10 connected to the heat transfer medium outlet of the solar concentrating heat collector 1 in turn, The steam generator 9 and the preheater 8, the heat transfer working medium outlet of the preheater is connected with the heat transfer working medium inlet of the solar concentrator 1;
[0016] Condenser 4 is also included. The feedwater outlet of condenser 4 is connected to condensate pump 11, geothermal water heater 5, deaerator 7, feed water pump 12, high pressure heater 6, preheater 8, steam g...
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The invention relates to a multi-energy complementary electric generation system and a method utilizing geothermal water for preheating condensate water. The system comprises a solar concentrating collector, and an overheater, a steam generator and a preheater sequentially connected to a heat transfer working medium outlet of the solar concentrating collector. A heat transfer working medium outletof the preheater communicates with a heat transfer working medium inlet of the solar concentrating collector; a feed outlet of a condenser is sequentially connected with a condensate pump, a geothermal water heater, a deaerator, a feed pump, a high-pressure heater, the preheater, the steam generator, the overheater and a turbine; the turbine is connected with an electric generator; a steam exhaust port of the turbine is connected with an air exhaust inlet of the condenser; a second steam extraction opening of the turbine is connected with a steam extraction inlet of the deaerator; a third steam extraction opening of the turbine is connected with a steam extraction inlet of the geothermal water heater; a first steam extraction opening of the turbine is connected with a steam extraction inlet of the high-pressure heater; and a dewatering outlet of the high-pressure heater is connected with a dewatering inlet of the deaerator. The invention further discloses a multi-energy complementaryelectric generation method of the system. The aim of combined high-efficient utilization of renewable energy sources is achieved.
Description
Technical field [0001] The invention belongs to the technical field of solar thermal power generation, and particularly relates to a multi-energy complementary power generation system and method using geothermal water to preheat condensed water. Background technique [0002] Both solar power generation and geothermal power generation are renewable clean energy power generation, but both have their own obvious defects. The cost of solar concentrating is relatively 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 source as its top cycle will benefit the power output of the original system and increase the thermal efficiency of the system to a certain extent; for solar energy, geothermal energy is a stable energy output, which will be able to overcom...
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IPC IPC(8): F03G6/06F03G4/00F24T50/00F01D15/10
CPCF01D15/10F03G6/06Y02E10/46
Inventor 彭烁周贤李启明钟迪黄中王保民王剑钊
Owner HUANENG CLEAN ENERGY RES INST