Closed type circulation power generation system of integrated absorption heat pump

Abstract

The invention discloses a closed type circulation power generation system of an integrated absorption heat pump, and relates to the technical field of power circulation, in particular to the closed-type circulation power generation system of the integrated absorption heat pump. The closed-type circulation power generation system comprises a supercritical carbon dioxide circulation and absorption heat pump, the supercritical carbon dioxide circulation comprises a compressor, an outlet of the compressor is connected with a high-pressure side inlet of a low-temperature heat regenerator and a low-temperature side inlet of an absorber of the absorption heat pump, and a low-temperature side outlet of the absorber of the absorption heat pump is connected with a low-temperature side inlet of the condenser of the absorption heat pump. According to the closed type circulation power generation system of the integrated absorption heat pump, waste heat released by supercritical carbon dioxide circulation is converted into high-grade heat through the absorption heat pump, and the high-grade heat is supplied to the supercritical carbon dioxide circulation to be recycled, so that the power generation efficiency of the system is improved; and in addition, a simple heating mode is adopted, the structure of the system is simpler, the control is simpler, and a high-low-grade heat source can be cooperatively used, so that the cost of the heat source can be reduced, and the heat and power supply can be facilitated.

Description

technical field [0001] The invention relates to the technical field of power cycles, in particular to a closed cycle power generation system integrating an absorption heat pump. Background technique [0002] In recent years, the supercritical carbon dioxide cycle has become a hot topic and is considered to have many potential advantages. The critical point of carbon dioxide is 31°C / 7.4MPa. When the temperature and pressure exceed the critical point, the state is supercritical. The chemical properties of carbon dioxide are stable and the density High, non-toxic, low cost, simple circulation system, compact structure, high efficiency, air cooling, supercritical carbon dioxide cycle can be combined with various heat sources to form a power generation system, it is considered to be used in thermal power generation, nuclear power generation, solar thermal power generation, waste heat power generation , geothermal power generation, biomass power generation and other fields all hav...

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Problems solved by technology

[0002] In recent years, the supercritical carbon dioxide cycle has become a hot topic and is considered to have many potential advantages. The critical point of carbon dioxide is 31°C / 7.4MPa. When the temperature and pressure exceed the critical point, the state is supercritical. The chemical properties of carbon dioxide are stable and the density High, non-toxic, low cost, simple circulation system, compact structure, high efficiency, air cooling, supercritical carbon dioxide cycle can be combined with various heat sources to form a power generation system, which is considered to be used in thermal power generation, nuclear power generation, solar thermal power generation, waste heat power generation , geothermal power generation, biomass power generation and other fields all have good application prospects. On the basis of the simple regenerative cycle arrangement, a complex form of supercritical carbon dioxide cycle can be constructed by splitting and recompressing, thereby improving cycle efficiency, splitting and recompressing Compressed supercritical carbon dioxide cycle has the most advantages in terms of cycle efficiency, but the temperature of the working medium entering the heat source is too high, which will cause loss of heat input from the heat source to the working medium, especially the sensible heat source, and the heat in the low temperature section is difficult to be effectively utilized

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