Is the pressure difference of Texaco burner related to the degree of burner abrasion?
Thread Content
I saw in some information that someone said that the abrasion of the burner is closely related to the impact speed of the coal-water slurry on the burner, and the pressure difference of the burner seems to be related to the speed of the coal-water slurry when it ejects from the burner. However, I have never understood the relationship between these factors. I would like to ask the following questions and hope that everyone can discuss it.: For the same burner, when the coal slurry and oxygen flow rates are constant, how does the burner pressure difference affect the speed of coal water slurry ejecting from the burner?
For the same burner, if the pressure difference of the burner is large, it means that there is blockage or breakage inside. If blockage occurs, the spraying effect will not be very good.
Please ask friends who know the situation to come over and talk about this topic.
This question is actually very simple: 1. The burner pressure difference is related to the gasifier load and burner abrasion. What others say is correct. ； 2. Since the sizes of the same burner, inner ring (coal slurry) and outer ring (oxygen) are fixed, under the same circulation area, more volume passes through, which will inevitably cause an increase in resistance. Therefore, the burner pressure difference meter used to measure the pressure difference before the coal slurry enters the burner and after it exits the burner will of course be larger. ； 3. Continuing from the second point above, if the same burner and the same operating load are used, the burner pressure difference is generally constant. However, if it is operated for a long time, the inner ring will be eroded due to long-term erosion by coal-water slurry, and the inner ring gap will slowly increase, which means that the flow area will slowly increase, and the resistance will be correspondingly smaller, so the burner pressure will also slowly decrease. ； 4. Generally, the abrasion is more severe when the load is higher than when the load is lower, because as mentioned above, when the load is high, the resistance is large, the pressure drop is large, the flow rate is large, and the abrasion is large. ； 5. The burner pressure difference can reflect the burner abrasion. The burner pressure difference cannot be too low. If it is too low, the coal slurry will be atomized poorly and the carbon conversion rate will be poor. I don’t know if the poster is satisfied with the above answer?
Thank you to the above poster. I agree with the 4th floor. The structural size of the burner is determined by the height-to-diameter ratio of the gasifier and the gasification load. After the burner material and dimensional accuracy have reached the target, the wear rate of the burner is mainly determined by the operating pressure and load. The 4.0MP gasification system burner can be used for about 90 days, while the 6.5MP burner can be used for about 60 days at most. This should explain this problem.