On the flow distribution problem in converters
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Now, the scale of calcium carbide production is increasing, and the number of converters in the key processing steps is also large (usually 2.4 meters in size). Is there any good method for managing the flow distribution in such systems? This post was last edited by edc1233 on 2008-9-16 16:39.]
A orifice plate flow meter is installed at the inlet of each converter, with the inlet valve used to control the flow rate.
Adjust the size of the inlet valve according to the export sample. If the pressure at the mixer outlet is too high, it is better to appropriately increase the inlet valve of the converter for the analysis sample.
A flow control orifice plate can be added; many of our reactors are set up this way
If orifices were added to each device, the cost would be too high. There is a manual valve at the inlet of each converter, which can be used for adjustment.
The flow regulation of our converters is generally done based on factors such as the usage time of each catalyst, the conversion rate, the reaction temperature, and the resistance level; by adjusting the size of the inlet valve of the converter, the flow rate is thereby controlled. General adjustments are made by experienced operators upon approval.
Nowadays, converters are becoming larger and usually measure around 3 meters in length. If possible, flow control orifice plates can be installed on each converter; if such plates are not used, the opening degree of the valves can still be adjusted by considering the acetylene content at the outlet of the converter
How many converters do you have? :)，，，，， :P:lol
First: Adjust the amount of mixture entering the converter based on the reaction temperature of each individual converter. Secondly: the front-end converter is adjusted based on the amount of hydrogen peroxide, while the back-end converter is adjusted based on the amount of acetylene at the outlet.
It seems that the reaction gas coming out of the front-end converter goes directly to the back-end; in other words, whatever amount comes out of the front end enters the back end as well
Several types of records need to be kept for the operation of the converters: 1. The temperature of each converter, with temperature measurements taken at four different levels on each converter. 2. Service life of the catalyst in a single converter. 3. For monitoring the flow rate of hydrogen chloride and acetylene, orifice plate flow meters are commonly used; however, their accuracy is relatively low. It is therefore necessary to constantly analyze the amount of hydrogen perchloride in the front-end converter in order to adjust the ratio between hydrogen chloride and acetylene as needed. 4. The amount of peracetylene in the backend converter; this indicator reflects the effectiveness of the catalyst used. Acetylene content in the gas main of the back-end converter. 5. Periodically analyze the water content in the gas phase within the inlet, middle, and outlet manifolds of the converter.