During the coking commutation process, how much will the temperature in the combustion chamber change?
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Everyone, there are 2 questions: 1. What is the temperature in the combustion chamber during normal operation, or rather, what is the average temperature? 2. During coking commutation, the gas supply is interrupted for a while; so by how much does the temperature in the combustion chamber drop during this commutation process?
1. When measuring temperature, it is the temperature of the refractory material that is being assessed; the temperature of the gas flow should be higher than that of the refractory material. Under the designed coking time for a coke oven, a temperature of 1320 degrees at the temperature measurement point in the vertical flue is considered appropriate. 2. There is a \"20-second drop value\" on the coke oven; it measures the temperature drop that occurs 20 seconds after a change in the direction of flow in the vertical flue – that is, from upward flow to downward flow. Measurements are taken every minute until the temperature drops again before the next direction change. Generally, when the coke oven is heated with coke oven gas, the temperature drops by 25–30 degrees within 5 minutes after such a change
Thank you! Actually, my question is: during the reversal process, the NOX concentration drops sharply, and then rises slowly back to its previous level. Since the generation of NOX is related to temperature, I believe the reason why the NOX concentration rises slowly is the drop in temperature during the reversal process. ?
The data shown by NOX represents the concentration in the air; when the oxygen level increases, NOX levels decrease. Pay attention to the changes in oxygen content during the switching process – in most cases, it is an abrupt increase in oxygen content that causes a sharp drop in NOX levels