Combustion chamber high-temperature combustion section temperature control method and device

Abstract

The invention discloses a combustion chamber high-temperature combustion section temperature control method and device. A cooling water atomization sprayer is arranged in a combustion supporting air pipeline. Atomization cooling water is sprayed into a combustion chamber so that the combustion section temperature in the combustion chamber can be reduced; and the low grade can be selected for fireproof materials of the combustion section, the service life is prolonged, and reduction of the running cost is facilitated. Due to reduction of the combustion temperature, the NOx generation amount canbe reduced. Meanwhile, the positive pressure area is formed around the atomization sprayer through the combustion supporting air pressure, atomization sprayer abrasion due to the combustion chamber interior high temperature, acid gas corrosion and particles can be prevented, and the service life of the atomization sprayer is prolonged. According to the temperature control device, the atomizationcooling water spraying amount is accurately controlled through the combustion chamber outlet temperature, and it is ensured that the combustion chamber is in a stable running state.

Description

technical field [0001] The invention provides a method and device for controlling the temperature of the high-temperature combustion section of the combustion chamber, especially the high-temperature combustible gas generated when the plasma arc melts the fly ash is burned in the combustion chamber, which can reduce the temperature of the combustion section of the combustion chamber and operate stably. Background technique [0002] In recent years, my country's economy has developed rapidly and the process of urbanization has accelerated. While people's living standards have improved, a large amount of municipal solid waste has also been produced. In 2015, 246 large and medium-sized cities across the country generated as much as 185.64 million tons of domestic waste, and the trend is still increasing. Facing the increasingly serious problem of waste disposal, the traditional landfill disposal method is far from being able to meet the current development needs due to its lar...

AI Technical Summary

Problems solved by technology

Introducing a large amount of air will cause the oxygen content of the flue gas at the outlet of the combustion chamber to exceed the limit value. At the same time, the temperature control effect is not obvious by injecting a large amount of air; spraying cooling water can achieve a good cooling effect, but the mist Long-term exposure to high temperature, acid gas corrosion, and particle wear will cause frequent damage to the atomizing nozzle and require frequent maintenance and replacement

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