Gas flow meter manufacturers to share gas flow meter selection precautions
2021-05-24
What are the precautions for gas flowmeter selection? The following is a brief introduction to Aister gas flow meter manufacturers.
1. the water vapor content in the gas changes with the temperature, in the same pipeline, close to the exit of the benzene tower and distance from the exit circle (more than kilometers), the results measured by the ordinary flowmeter will have a big gap, the gap is generally more than 10%, better in summer, therefore, the measurement gas flowmeter must have a moisture compensation function, that is to say, Coke oven gas must be regarded as a medium with changing composition and density to measure accurately.
2. in order to reduce the load of the fan, the gas pipeline is very coarse, resulting in low flow rate of coke oven gas, low pressure, resulting in low flow rate or lower flow rate, which requires the selection of a large range ratio of flow sensors to meet the measurement needs, which is more important in trade measurement.
3. the gas contains a small amount of tar fog and naphthalene crystalline dust, a long time will adhere to the sensor, resulting in measurement failure or error increase, so the gas flow meter must have an automatic cleaning function, regular flow sensor cleaning to ensure measurement accuracy.
The above is a small introduction to the gas flow meter selection considerations, I hope you can understand.
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