Float glass melting furnace parallel connection waste heat power generation system

Abstract

The invention relates to the technical field of power generation by using float glass melting furnace waste heat, aiming to solve the technical problems of low waste heat utility efficiency, low powergeneration efficiency, poor system stability, large heat recovery cost, large fluctuation range of waste gas and waste heat parameter, serious environment pollution, high cost of once investment andthe like when using waste heat in the traditional float glass melting furnace. The gas outlets of a plurality of float glass melting furnaces of the invention are communicated with the gas inlets of aplurality of parallel connection waste heat boilers, and the gas outlets of the waste heat boilers are communicated with a chimney; the water outlet of a boiler water feed pump is respectively communicated with the circulation water inlets of a plurality of parallel connection waste heat boilers, the vapor outlets of a plurality of parallel connection waste heat boilers are communicated with a gas collection cylinder, the outlet of the gas collection cylinder is communicated with the vapor inlet of a steam turbine, and the steam turbine is connected with a generator; and the steam discharge pipe of the steam turbine is connected with a condensate water system which is communicated with the water inlet end of the boiler water feed pump via a deaerating device. The invention is suitable fortwo or more than two float glass melting furnaces to perform waste heat power generation.

Description

technical field [0001] The invention relates to the technical field of glass melting furnaces, in particular to a power generation system utilizing the waste heat of glass melting furnaces. Background technique [0002] The energy consumption of industrial processes is dominated by fuel and electricity. Usually, the utilization rate of fuel is between 30% and 40%. If the waste heat resource is not recycled, it will not only waste energy, but also pollute the environment. [0003] Glass melting furnaces in the glass industry usually use heavy oil, natural gas, gas, etc. as fuel, and the flue gas formed by the combustion of the fuel in the furnace is discharged out of the furnace, that is, waste heat resources are generated. The waste gas of the glass melting furnace belongs to the waste heat of medium temperature waste gas, the temperature is 450-550 ℃, the flow rate of waste gas is small, the heat grade is lower, and the cost of heat recovery is higher; the parameters of wa...

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Problems solved by technology

[0008] The invention aims to solve the problems of low waste heat utilization efficiency, low power generation efficiency, poor system stability, high heat recovery cost, large fluctuation range of waste heat parameters of waste gas, serious environmental pollution, and high one-time investment cost in the waste heat utilization of traditional glass melting furnaces. Technical problem, to provide a float glass melting furnace parallel waste heat power generation system with high waste heat utilization rate, high power generation efficiency, good system stability, low heat recovery cost, environmental protection, and investment cost saving

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