Heating furnace waste heat power generation system with vertical low-resistance heat pipes

Abstract

The invention discloses a heating furnace waste heat power generation system with vertical low-resistance heat pipes. The heating furnace waste heat power generation system comprises a heating furnace, a waste heat recover, a superheater, a steam turbine, a power generator, a steam condenser and a plurality of first heat pipes arranged at the tail part of the heating furnace along the flow direction of smoke, wherein evaporation ends of the first heat pipes communicate with a heating furnace flue, condensation ends of the first heat pipes are connected into the waste heat recover, the waste heat recover is internally provided with a working medium, a working medium outlet flow channel is connected to an inlet of the superheater, an outlet of the superheater is connected to the steam turbine, an output shaft of the steam turbine is connected with the power generator, a working medium channel outlet of the steam turbine is connected with an inlet of the steam condenser, a pump is arranged on an outlet pipeline of the steam condenser, and communicates with a working medium inlet flow channel of the waste heat recover; and high-density multilayer and multicolumn linear bent heat exchange elements are configured on the outer surface of the first heat pipes. Therefore, the utilization efficiency of waste heat of the heating furnace is greatly improved through the first heat pipes, the steam turbine and the power generator, thus the heating furnace waste heat power generation system is energy-saving, green and environment-friendly.

Description

technical field [0001] The invention relates to the field of recovery and utilization of waste heat and waste energy, in particular to a heating furnace waste heat power generation system with vertical low-resistance heat pipes. Background technique [0002] As a major energy consumer, steel rolling heating furnaces in iron and steel enterprises directly affect the production costs of enterprises. Generally, as a heating equipment, the thermal efficiency of a heating furnace is generally about 30%, and the energy consumption is high and the energy utilization level is low, resulting in a large amount of energy waste. Therefore, recovering the waste heat of the heating furnace has both good economic benefits and certain environmental benefits. [0003] At present, most iron and steel enterprises use vaporization cooling walking beam heating furnaces. The general fuel is mixed gas, and the smoke exhaust method is natural smoke exhaust. The exhaust gas temperature is generally...

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Problems solved by technology

However, the waste heat recovery efficiency in the prior art is generally low

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