1. What are the precautions for shutting down the blower of the gas producer?
Answer: 1) Planned parking: ① Arrange for command, slowly close the outlet valve until it is closed. ②Stop the motor rotation.
2) Power failure of the whole station: ①Close the outlet valve of the running fan quickly and open the external steam. ②Operate according to the start-up procedure after the call. ③If there is a power failure for more than 10 minutes, warm up the furnace.
2. How to judge the false water level?
Answer: Under normal conditions, the water level fluctuates slightly. If the water level does not move for a long time, and the steam pressure increases too fast, it may be a false water level; open the water level gauge drain valve, and close it after the water is discharged, if not A rise in the water level is a false water level.
3. How to deal with a broken water level gauge?
Answer: The gas generator steam drum is generally equipped with two water level gauges. When one of them fails, monitor the other water level gauge, and repair or replace the failed water level gauge.
4. How is the unburned coal in the coal ash formed and how to reduce the carbon content?
Answer: The coal lumps in coal ash are mainly formed by incomplete gasification of coal in the furnace and insufficient combustion. Reason: The temperature of the oxide layer is not well controlled, or the temperature of the vaporizing agent is too high.
Solution: When there is no slagging in the furnace, the temperature of the oxide layer should be as high as possible, and the hydrogen content in the coal gas should be controlled to be less than one-half of the carbon monoxide content.
5. What are the causes and solutions for partial furnace and slagging of gas furnace?
Answer: The cause of the partial furnace is that part of the furnace gasifies too fast and there is fire. If not treated for a long time, slagging will be formed. Treatment method: firstly break the slag and treat the high ash, and then use the regulating valve to adjust the ventilation of the high and low ash to increase the ash output by an appropriate amount.
6. How to add water?
Answer: Open the water cock, close the steam cock immediately, and then close the water cock immediately. If you see water in the water level gauge, it means that there is a slight water shortage, if there is no water, it is a serious water shortage.
