Combined Cycle Energy Supply System

Abstract

The invention provides a combined cycle energy supply system, which belongs to the technical field of thermal energy utilization and heat pump. Turbine, boiler, condenser and circulation pump constitute the forward circulation system of steam power plant, compressor, cooler, expander, low temperature heat exchanger and regenerator constitute the reverse circulation system of compression type, evaporator, absorber, generator , condenser, throttle valve, solution pump and solution heat exchanger constitute an absorption reverse cycle system; the forward cycle of the steam power unit provides power to the compression reverse cycle or provides driving heat load to the absorption reverse cycle, and the compression reverse cycle The cycle obtains the low-temperature heat load and supplies heat to the outside through the cooler, and the absorption reverse cycle obtains the low-temperature heat load and supplies heat to the outside through the absorber and condenser, forming a combined cycle energy supply system.

Description

Technical field: [0001] The invention belongs to the technical field of power, refrigeration and heat pump. Background technique: [0002] In the system where fuel is used for heating by combustion, there is a large temperature difference between the gas formed by combustion and the heated medium; There is also a large temperature difference; in a distributed energy system powered by a steam power plant, power supply is actually a restrictive additional condition, and there are still situations where the temperature difference cannot be fully utilized in many cases. These situations that cannot realize efficient utilization of thermal energy can be mainly summarized into five aspects: ①Without power load, there is a large temperature difference between the gas and the heated medium that cannot be utilized, and efficient utilization of thermal energy cannot be realized; ②Absorption heat pump is configured , due to the limitation of the working temperature range of the absorp...

AI Technical Summary

Problems solved by technology

[0002] In the system where fuel is used for heating by combustion, there is a large temperature difference between the gas formed by combustion and the heated medium; There is also a large temperature difference; in a distributed energy system powered by a steam power plant, power supply is actually a restrictive additional condition, and there are still situations where the temperature difference cannot be fully utilized in many cases

These situations that cannot realize efficient utilization of thermal energy can be mainly summarized into five aspects: ①Without power load, there is a large temperature difference between the gas and the heated medium that cannot be utilized, and efficient utilization of thermal energy cannot be realized; ②Absorption heat pump is configured , due to the limitation of the working temperature range of the absorption heat pump working medium, there is a large temperature difference between the driving gas and the absorption heat pump working medium, and the use of the temperature difference is unreasonable; There is a large temperature difference; in this way, when using steam to drive the absorption heat pump, the use of temperature difference is unreasonable; ④Lack of low-temperature heat resources, it is difficult to use the heat energy in the environment; ⑤When the temperature of low-temperature heat resources is very low, it is impossible to find a suitable absorption heat pump device Working medium with satisfactory thermal performance and safety performance

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