High-temperature incinerator combustion hood air curtain protection system

Abstract

The invention discloses a high-temperature incinerator combustion hood air curtain protection system, which comprises a cooling air feeder and a cooling air nozzle, wherein the cooling air feeder is connected with the cooling air nozzle through a cooling air feeding pipeline. The high-temperature incinerator combustion hood air curtain protection system is characterized in that the cooling air nozzle is arranged on a furnace wall of an incinerator, and is close to the lower part of the contacted part of a combustion hood and the furnace wall; a thermocouple is arranged in the combustion hood. The high-temperature incinerator combustion hood air curtain protection system also comprises an industrial personal computer and a frequency converter, wherein the frequency converter and the thermocouple are connected with the industrial personal computer. Compared with the prior art, the high-temperature incinerator combustion hood air curtain protection system has the following advantages that cooling air is utilized to lower the surface temperature of the radiating surface of the combustion hood, so that the combustion hood is protected, and the safety and the reliability are improved; the high-temperature thermocouple is buried in the combustion hood, and the combustion hood is uniformly divided into multiple areas by utilizing the characteristics of trash burning to control the area where overtemperature might most probably happens to damage the combustion hood; the cooling air nozzle adopts a throat flat type, so that the air discharge velocity of the cooling air nozzle is improved, and the air protection cover effect is improved.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to an air curtain protection system for a combustion hood of a high-temperature incinerator. Background technique [0002] The improvement of urban living standards has promoted the development of urban waste treatment technology. At present, the main and effective treatment method is high-temperature waste incineration technology. One of the technical keys is that waste burning must be under high temperature conditions, otherwise the waste generated by waste incineration Dioxins will cause serious air pollution. Therefore, the design of the waste incineration chamber must not only ensure a high incineration temperature, but also ensure that the incinerator can adapt to the high-temperature incineration environment without safety problems. [0003] The Chinese invention patent application with application number 201110297714.X proposes "combined furnace arch structure in a biomass ...

AI Technical Summary

Problems solved by technology

One of the purposes of this invention is to make the temperature of the combustion chamber area high, the material is completely burned, and the combustion efficiency is improved. However, the disadvantage is that the temperature of the combustion chamber is relatively high, and the inclined furnace arch, that is, the combustion hood is in the high-temperature flue gas area for a long time, and the furnace arch material will be damaged. Aging acceleration occurs, which has a great impact on the safety and reliability of the combustion hood

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