Supercritical carbon dioxide system achieving thermoelectric decoupling
A carbon dioxide and supercritical technology, applied in heating systems, hot water central heating systems, heating methods, etc., can solve the problem of low cost, achieve the effect of increasing power supply load, facilitating cost control, and increasing heating capacity
Pending Publication Date: 2018-01-19
HUANENG POWER INT INC +1
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[0004] The purpose of the present invention is to provide a supercritical carbon dioxide system capable of improving the peak-shaving capability of thermoelectric units, which is feasible and low in cost, and realizes thermoelectric decoupling, so as to solve the problem of “determining power by heat” of thermoelectric units
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[0015] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
[0016] see figure 1 , the present invention includes a compressor 1 and a working medium side inlet of the first heat supply heat exchanger 2 connected to the outlet of the compressor 1, the working medium side outlet of the first heat supply heat exchanger 2 is connected with the inlet of the vortex tube 3, and the vortex The high-temperature side outlet of the tube 3 is connected with the working medium side inlet of the second heat supply heat exchanger 4, the low-temperature side outlet of the vortex tube 3 is connected with the inlet of the heater 5, and the fluid at the outlet of the heater 5 is connected with the second heat supply heat exchanger 4 The fluid at the outlet of the working fluid side is connected to the inlet of compressor 1 after confluence, the inlet of the high temperature side of the heater 5 is connected to the circulating cooli...
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The invention discloses a supercritical carbon dioxide system achieving thermoelectric decoupling. The supercritical carbon dioxide system mainly comprises a compressor, a first heat supply heat exchanger, a vortex tube, a second heat supply heat exchanger, a heater and a third heat supply heat exchanger. According to the supercritical carbon dioxide system, a thermoelectric unit is combined witha heat pump and vortex tube system, therefore, on one hand, the surplus electric quantity generated by the thermoelectric unit is consumed by the compressor, and on the other hand, by means of the cooling effect of the vortex tube, waste heat of circulating cooling water is absorbed; and efficient heat supply is achieved. By means of the supercritical carbon dioxide system, the energy utilizationrate is increased through the heat pump technology, and meanwhile, the requirement of the system for the compression ratio of the compressor is lowered through the vortex tube technology; practicability of the system is improved; and cost is lowered.
Description
technical field [0001] The invention belongs to the field of cogeneration of heat and power, and in particular relates to a supercritical carbon dioxide system for realizing thermoelectric decoupling. Background technique [0002] Fossil energy will eventually be exhausted. At the same time, environmental protection and pollution issues are increasingly valued by people. In recent years, the installed capacity of new energy power generation represented by wind power and photovoltaics has increased significantly. Peak shaving capability puts forward higher requirements. The problem of insufficient flexibility of thermal power units is becoming more and more obvious, especially the problem of insufficient peak regulation capacity of thermal power units is more prominent. In the northern region, there are more and more problems of curtailment of wind and light caused by poor peak regulation capacity of thermal power units during the heating season. Therefore, the flexibility t...
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IPC IPC(8): F24D3/18F24D3/10
Inventor 高炜张一帆李红智聂鹏陈渝楠
Owner HUANENG POWER INT INC