During the operation of the gasifier, a CO concentration of 100 ppm was detected in the burner cooling water separation tank
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During the operation of the gasifier, the burner cooling water separation tank detected a CO level of 100 ppm; no other significant abnormalities were observed. Can it continue to operate? Are there any things to pay attention to during operation?
Manual? Online? Does the environment have an impact? What is the nitrogen gas flow rate per unit time? Based on the detected concentration, the amount of syngas entering the return water separation tank per unit time can be calculated. The control room should pay close attention to changes in the flow rate, temperature, and pressure of the burner cooling water at the inlet and outlet, as well as any fluctuations in the online analysis results. On-site measurements should be taken of the temperature of the burner flange and the wall temperature of the burner cooling water outlet pipe
Increase the nitrogen valve on the separation tank slightly; it’s possible that the amount of nitrogen is too low, causing the online monitoring device to be affected by external factors. After increasing the nitrogen flow, the CO levels did not decrease. If we rule out the possibility of problems with the sensors, then caution is needed – it’s possible that there are cracks in the burner coil causing air leakage.
The burner has been removed, and visible cracks are present at the end connection port :)
Did it crack when the device was removed, or while it was in use? When it was stopped for the final time, apart from the responses detected by the online monitoring system as mentioned in the post, were there any slight changes in the outlet temperature, inlet and outlet flow rates, and inlet pressure?
After operating for some time, cracks appeared on the ports; the burner repair specialist was asked to conduct a helium leak test to check for any leaks, and also to examine the depth of the cracks on the end faces of the burner
It seems from what the original poster said that it’s not the end face of the burner; rather, it’s likely the weld area at the head of the burner where the cooling water flows. The poster mentioned that there are visible cracks in this area, and it seems like those cracks were caused by removing the burner. If there are visible cracks, other parameters should also be clearly apparent.
No, I’m from Anyang Mobile Company
Me too. Why haven’t I seen you before? ;P
Wow, you guys are coming up with topics that span different industries and specialties... One person works in communications, while the other works on water wall systems. How are those who deal with water-coal slurry supposed to make a living? ? ? ;P
After operating for a while, cracks generally appear at the end face and the welds of the coil during the process of removing the burner; this is likely caused by pulling out the burner.