The flow rate issue of the spray liquid in each section of the primary cooler
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What is the typical flow rate of the spray liquid in each section of the primary cooler? I designed it to be based on twice the cross-sectional area of the primary cooler. I don’t know what the actual usage is?
The flow rate depends on the process; you can check the coking design references for information
This traffic manual does not specify design quotas. It’s usually based on experience; it’s not clear what the usual amount is in coking plants. The processes vary, but the conventional coke oven quenching processes are similar; the difference lies in scale, namely the size of the primary quenchers.
What was said upstairs makes some sense; are there any reference materials for coking design?
The amount of condensate sprayed shouldn’t be a fixed value; it needs to be determined based on the process requirements and the surrounding conditions
The spray volume designed today is several times that of the precooler from ten years ago, and practice has shown that choosing a larger value is beneficial.
I’ve been at several coking plants where the spray rate for the 1,800 square meter primary coolers is 20 cubic meters per hour. This is likely related to the treatment area of the primary cooler, the gas flow rate per hour, the resistance of the primary cooler, and the structure of the nozzles. Too much will increase resistance, while too little will have no effect.
You are referring to the minimum value, which is determined based on experience; moreover, the spray liquid used in the primary cooler is also related to the amount of light tar present.
The primary cooler has a heat exchange area of 4000 m³; the liquid spray volume in the upper section is 25 to 40 m³/h, and that in the lower section is also 25 to 40 m³/h
Based on my experience, the flow rate is calculated as 3 times the cross-sectional area, or 1.5 times the minimum flow velocity for gas. The effect is okay. A ratio of tar to ammonia water of 1:2 yields the best results