Weird and counterintuitive phenomena during the oven drying process
Thread Content
In the oven process (coke oven gas oven), I discovered that there was such a strange phenomenon.: It was found that the average temperature of the entire coke side of the coke oven is low. At this time, most of the quarks leading to the small stove branch pipes from each carbonization chamber are fully open. At this time, the pressure of the coke side branch pipes is naturally low. However, after most of the quarks are turned down, it is found that the average temperature of the coke side generally increases (some a few decrease). Logically speaking, turning down the quarks reduces the fuel gas supply, and the average temperature should decrease. However, in fact, the average temperature does not decrease but rises. What is the reason for this? Please give your opinion.
It would be straightforward if there was a flow meter... :D
Is the temperature measuring instrument used accurate?
The temperature measuring instrument is a thermocouple thermometer, so it should be fine. Generally, a U-shaped differential pressure meter is used to control gas flow, which is simpler and more economical. The installation and requirements of the flow meter are more complicated. A simple explanation may be that when the quarks are fully turned on, the branch nozzle flame of the small stove in the carbonization chamber is short, and it usually burns at the end of the stove. Only a few numbers at the stove end have higher temperatures. After turning off the quarks, the jet force of the flame is enhanced, the flame becomes longer, and the temperature of the middle fire channel is significantly increased, so ultimately the average temperature of the entire fire channel increases. You can also consider why the orifice plate needs to be replaced when the temperature change corresponding to the machine side or focal side pressure is not obvious when the Quark is fully opened. There may be similar reasons.