Pulsation porous medium combustion power generation system

Abstract

A pulsation porous medium combustion power generation system comprises a pulsation porous medium combustor and a power generation system with a screw expansion machine, wherein the pulsation porous medium combustor comprises a gas inlet pipe, a membrane valve, a porous medium combustion chamber, a non-medium combustion chamber, a smoke pipe, foamed ceramic, a spirally winding heat exchange pipe, a guide sleeve pipe, a preheater and an exhaust pipe; the membrane valve is positioned above the gas inlet pipe; the porous medium combustion chamber and the non-medium combustion chamber are positioned between the membrane valve and the smoke pipe; the smoke pipe is wrapped by the foamed ceramic with heat-conducting effect; the spirally winding heat exchange pipe is positioned in the foamed ceramic; the guide sleeve pipe is positioned behind the smoke pipe; the preheater is positioned behind the guide sleeve pipe; the preheater is connected with the exhaust pipe; the power generation system with the screw expansion machine comprises a water storage tank, a water processor, a boiler barrel, the screw expansion machine and a power generator; the water storage tank is used for storing working medium water; the boiler barrel is used for separating steam from liquid; the screw expansion machine is used for converting heat energy into mechanical energy; and the power generator is used for converting the mechanical energy into electric energy. The pulsation porous medium combustion power generation system generates electricity by utilizing combustion heat and low-temperature waste heat of low-heat-value gas, and is reasonable in single machine capacity matching, convenient to operate, energy-saving, environment-friendly and good in using effect.

Description

technical field [0001] The invention relates to a pulsating porous medium combustion power generation system, which is especially suitable for burning low calorific value gases such as coal mine low-concentration gas and low-concentration natural gas, and making full use of reaction heat and waste heat to convert high-efficiency thermoelectricity. Background technique [0002] The pulsating burner is a burner that works exclusively in the state of acoustic pulsation under the control of certain acoustic conditions. In the middle of the 19th century, Professor Lee Conte discovered the "flame sensitive to music", that is, the beginning of people's understanding of pulsating combustion. In the past one hundred years, various types of pulsating burners have appeared. The most widely used pulsating burner is the Helmholtz type pulsating burner, which is based on the acoustic Helmholtz resonator. principle works. However, the pulsating burner has many disadvantages, such as the ...

AI Technical Summary

Problems solved by technology

For example, in the patent 201010501852.0 that has been applied for, the power generation part makes good use of the advantages of the screw expander. However, the circulating water part does not make full use of the waste heat of the flue gas, resulting in the loss of energy of low calorific value gas with low energy density. , reducing energy efficiency

At the same time, the heat loss of the flue gas will lead to serious thermal pollution of the environment, which is not conducive to environmental protection

Images