Cogeneration system

Abstract

The invention provides a combined heat, power and cooling system, which belongs to the technical field of combined heat, power and cooling and heat pumps. Absorber, generator, second generator, condenser, second condenser, evaporator, throttle valve, refrigerant liquid pump, solution pump, second solution pump, solution heat exchanger, and second solution heat exchanger An absorption heat pump circulation system is formed; the power machine provides heat load through the low-temperature condenser, heater and second heater, and the circulation pump communicates with the low-temperature condenser, heater, second heater, evaporator and second generator through the circulation medium pipeline The generator has a high-temperature heat medium channel, the absorber and the condenser have heated medium channels, and the second condenser has cooling medium channels that communicate with the outside respectively, forming a combined heat and power supply system.

Description

Technical field: [0001] The invention belongs to the technical field of cogeneration of heat, electricity and cooling and absorption heat pump. Background technique: [0002] In the traditional heat and power cogeneration system that uses thermal fluid sensible heat as the heat load delivery method, there are many areas to be improved, mainly reflected in: (1) long-distance, large-scale and staged heat supply in the heat and power cogeneration system , the temperature of the primary pipe network is high, the pressure is high, and the pipeline is often located in a densely populated urban area, there are safety hazards, and the initial investment of the pipe network is large; (2) The temperature difference between the low-pressure exhaust steam discharged from the steam power plant and the environment It is often difficult to use; (3) For steam power plants that use coal as fuel, there is a heat transfer temperature difference between gas and power cycle steam that is difficu...

AI Technical Summary

Problems solved by technology

[0002] In the traditional heat and power cogeneration system that uses thermal fluid sensible heat as the heat load delivery method, there are many areas to be improved, mainly reflected in: (1) long-distance, large-scale and staged heat supply in the heat and power cogeneration system , the temperature of the primary pipe network is high, the pressure is high, and the pipeline is often located in a densely populated urban area, there are potential safety hazards, and the initial investment of the pipe network is large; (2) The temperature difference between the low-pressure exhaust steam discharged from the steam power plant and the environment It is often difficult to use; (3) In the steam power plant that uses coal as fuel, there is a heat transfer temperature difference between the gas and the power cycle steam that is difficult to use effectively, resulting in a low comprehensive energy utilization rate of the combined heat and power system; (4) a There is a large heat transfer temperature difference between the circulating medium of the primary pipe network and the circulating medium of the secondary pipe network or the heated medium, which has not been utilized; (5) Brings certain restrictions on the utilization of clean energy in the combined heat and power generation system

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