Combined heat and power generation system with compensation function

Abstract

The invention relates to a combined heat and power generation system with a compensation function. The combined heat and power generation system comprises a generator set, a high-temperature heat dissipation water tank and a low-temperature heat dissipation water tank, as well as a natural gas supply unit, wherein the high-temperature flue gas discharge end of the generator set is connected with two branches, and the two branches are connected with a silencer and a waste heat recovery device correspondingly; the hot water inlet end of the waste heat recovery device is connected with a unit high-temperature water outlet pipe, the hot water outlet end of the waste heat recovery device is connected with a heat exchanger through an intermediate pipeline, the heat exchanger is connected with the high-temperature heat dissipation water tank through a water return pipe, the unit high-temperature water outlet pipe is connected with an electric three-way valve on a cooling water pipe through a first bypass pipe, and a first compensation tank is arranged on the side of the mixed water outlet end of the electric three-way valve; and a water return pipe of the low-temperature heat dissipation water tank is connected with another electric three-way valve on the cooling water pipe through a bypass branch pipe, and a second compensation tank is further provided. According to the combined heat and power generation system, by virtue of the waste heat recovery device, heat of both high-temperature flue gas and high-temperature water is efficiently utilized for heat exchange for later use.

Description

technical field [0001] The invention belongs to the technical field of cogeneration of heat and power, and in particular relates to a cogeneration system of heat and power with compensation function. Background technique [0002] At present, my country's power shortage problem is becoming more and more prominent, and people's requirements for environmental protection are also getting higher and higher, and cogeneration projects have been widely used. [0003] Existing combined heat and power projects generally include generator sets. During the working process of the generator sets, high-temperature water can be produced, and the temperature can reach about 80 degrees. In the current cogeneration projects, the high-temperature water generated by the generator sets cannot be efficiently recovered. use, there is a waste of energy. Contents of the invention [0004] The object of the present invention is to solve the above technical problems and provide a cogeneration system...

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Problems solved by technology

[0003] Existing combined heat and power projects generally include generator sets. During the working process of the generator sets, high-temperature water can be produced, and the temperature can reach about 80 degrees. In the current cogeneration projects, the high-temperature water generated by the generator sets cannot be efficiently recovered. use, there is a waste of energy

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