Catalytic cracking loosening air
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I would like to ask everyone: what is the typical airflow rate used for controlling the loosening air in catalytic cracking systems such as inclined tubes and slide valves? Thank you all!
The linear velocity of the loose air should be controlled based on the pipe diameter, so as to calculate the value
The slide valve is also purged, and the flow rate is controlled by a orifice plate; as for the setting of this orifice plate’s flow rate, it would be necessary to ask the people from the design office. However, in normal operation, the flow rate is kept relatively low to prevent the valve stem from being damaged due to high flow rates
They all have orifice plates. It’s generally not adjusted either
Loose air generally passes through orifice plates, with a very low flow rate; it’s sufficient to ensure fluidization!
Mm-hmm, I understand that, but I want to know what the specific flow rate is? Thank you!
Generally, there’s no need to monitor the volume; it’s sufficient to check the pressure and the fluidization effect
There’s a formula for this; search on Baidu
Wind pressure: 6 kilograms, steam pressure: 9 kilograms, orifice plate diameter: 2.5 mm, flow rate: 20 kg/h, more or less; there are many factors that influence this