Waste incineration flue gas waste heat recovery device

A waste incineration and flue gas waste heat technology, applied in incinerators, combustion methods, combustion types, etc., can solve the problems of waste incineration flue gas corrosion, etc., and achieve a low maintenance workload, good temperature resistance, and long working life. Effect

Active Publication Date: 2013-05-15
西安宇清环境工程科技有限责任公司
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Problems solved by technology

[0015] The problem solved by the present invention is to provide a garbage incineration flue gas waste heat recovery device to solve the corrosion problem of garbage incineration flue gas, and further consider the production load of the garbage incinerator and the actual steam load to flexibly adjust the heat transfer, so that the whole The device is working at its best

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  • Waste incineration flue gas waste heat recovery device

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0039] The waste heat recovery system of the present invention is composed of a ceramic heat exchanger 1, a waste heat boiler 2, an air circulation fan 3, a hot air pipe 7, a heat exchanger hot air inlet valve 4, an outlet valve 5, a bypass valve 6, instruments, and a control system. Among them, the instruments installed on the waste incineration flue and hot air duct mainly include the first temperature sensor 8 for measuring the flue gas temperature at the entrance of waste incineration, the second temperature sensor 9 for measuring the flue gas temperature at the waste incineration outlet, and the instrument for measuring the hot air inlet temperature of the waste heat boiler. The third temperature sensor 10, the fourth temperature sensor 11 for measuring the temperature of the hot air outl...

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Abstract

The invention discloses a waste incineration flue gas waste heat recovery device which comprises a ceramic heat exchanger and a waste heat boiler. The ceramic heat exchanger is provided with an air inlet and an air outlet. A ceramic heat exchange pipe is arranged between the air inlet and the air outlet. The air inlet is connected with an outlet flue of a garbage incineration boiler. Flue gas of the garbage incineration boiler after cooling is discharged by the air outlet. A pipeline is connected with the ceramic heat exchanger, the waste heat boiler and an air circulation fan. Clean air is filled in the pipeline. The air circulation fan drives the air to flow between the ceramic heat exchanger and the waste heat boiler in a circulating mode. The waste incineration flue gas waste heat recovery device is resistant to HC1 corrosion, highly-corrosive HC1 in the flue gas has no effect on operation of the ceramic heat exchanger basically, and the ceramic heat exchanger can operate stably for a long time. Moreover, the waste heat boiler is small in size and little in maintenance workload, and the amount of system heat exchange is convenient to control.

Description

technical field [0001] The invention belongs to the technical field of waste heat recovery, and relates to a waste heat recovery device for waste incineration flue gas. Background technique [0002] The temperature of the flue gas from the waste incinerator is as high as 1000-1200°C, and the inlet temperature required by the quench tower of the flue gas purification system is greater than 500°C, so the temperature drop of the high-temperature flue gas from the waste incinerator can be recycled to 450-650°C , the current general waste heat recovery system configuration method is: [0003] 1) Install a waste heat boiler directly at the outlet of the waste incinerator to recover waste heat; [0004] 2) Some waste incinerators are equipped with an air preheater at the outlet of the waste heat boiler, and the combustion air of the waste incinerator is heated by the air preheater. There are also small waste incinerators that do not install waste heat boilers, but only install ai...

Claims

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Application Information

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IPC IPC(8): F23G5/46
CPCY02P80/15
Inventor 黎七中潘永俊朱晓亮
Owner 西安宇清环境工程科技有限责任公司
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