Combined heat and power supply system

Abstract

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

Description

[0001] Technical field: [0002] The invention belongs to the technical field of cogeneration of heat, electricity and cooling and absorption heat pump. [0003] Background technique: [0004] 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 ...

AI Technical Summary

Problems solved by technology

[0004] 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 difficult to use effectively, resulting in low comprehensive energy utilization 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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