Power plant boiler flue gas waste heat utilization system with balanced flow

A power plant boiler and waste heat technology, applied in indirect heat exchangers, lighting and heating equipment, etc., can solve the problems of affecting the efficiency of heat exchange and the decline of heat exchange capacity, and achieve the purpose of reducing short circuit, suppressing backflow, and improving the effect of steady flow. Effect

Inactive Publication Date: 2019-03-26
山东电力高等专科学校
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  • Application Information

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Problems solved by technology

During the evaporation process of the heat pipe, it will inevitably carry liquid to the steam end. At the same time, because of the exothermic condensation of the condensation end, there will be liquid in the condensation end, and the liquid will inevitably mix with t

Method used

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Example Embodiment

[0035] A boiler flue gas waste heat utilization system, the waste heat utilization system includes a heat pipe 11, a flue gas channel 1 and an air channel 2, the heat pipe 11 includes an evaporation end 111 and a condensation end 112, and the condensation end 112 is arranged in the air In the channel 12, the evaporation end 11 is arranged in the flue. The evaporation end 111 absorbs the waste heat of the flue gas in the boiler flue, and transfers the heat to the air in the air passage 12 through the condensation end 112 . The preheated air enters the boiler furnace for combustion support.

[0036] During operation, the heat pipe of the present invention absorbs heat from the flue gas through the evaporating end 111, and then releases the heat to the air at the condensing end, the fluid condenses, and then enters the evaporating end 111 by the action of gravity.

[0037] During the operation of the waste heat utilization device, there is uneven distribution of fluid, and because

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Abstract

The invention provides a power plant boiler flue gas waste heat utilization system. The power plant boiler flue gas waste heat utilization system comprises a plurality of parallel heat pipes, a flue gas passage and an air passage, the heat pipes comprise evaporating ends and condensing ends, and the condensing ends are formed in the air passage; the evaporating ends are formed in the flue gas passage; the evaporating ends absorb waste heat of flue gas in the flue gas passage, and the heat is transferred to air in the air passage through the condensing ends; and the preheated air enters a boiler furnace for combustion supporting, and flow uniformizing pipes are arranged between the at least two adjacent heat pipes. According to the power plant boiler flue gas waste heat utilization system,a waste heat utilization device with a novel type structure is provided, and by arranging the flow sharing pipes between the heat pipes, evenness of the pressure, even distribution of the fluid flow and even distribution of fluid moving resistance in all the heat pipes are guaranteed.

Description

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Claims

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Application Information

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Owner 山东电力高等专科学校
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