Texaco quench chamber density meter and level gauge issues
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What is the purpose of the densitometer in a Texaco quench chamber? Is the density of the water in the quench chamber the same during furnace heating and during normal production? (Some people say that the density of the water in the quench chamber is around 0.77 during normal production.) Since the liquid level in the quench chamber is calculated based on the pressure measured by differential pressure and a preset density value, if the density of the water in the quench chamber varies (for example, during furnace drying and during normal operation), will the resulting liquid level be accurate?
I would like to know the answer to this question as well; I wonder if any expert can give me some guidance
The density of water is affected by temperature; above 4°C, it varies in direct proportion to the temperature. Since the water temperature is low during the heating up of the gasification furnace, while it changes according to the operating pressure of the system during normal operation, temperature correction must be incorporated into the design of the liquid level gauge for the gasification furnace to ensure the reliability of liquid level detection.
Strictly speaking, it’s not accurate! Coal gasification is a highly complex process that takes place under high temperature and pressure conditions. Apart from the components of the syngas and the parameters of the equipment operating at lower temperatures and pressures, it is difficult to obtain accurate values for other parameters. As long as the parameters obtained through certain methods can provide useful information and help ensure stable production, that is sufficient!
Generally, the liquid level during furnace heating is not very accurate; it improves after materials are added, and this is mainly related to pressure.
Density level gauges generally have a large measurement range and can also measure in negative values. During furnace drying, due to negative pressure, the root valves of other level gauges must be closed. At this time, a density level gauge is used to determine the liquid level in the quench chamber.
I have a question: is there a liquid level level during furnace heating? In our ovens, the liquid level is kept as low as possible; generally, no liquid level is visible, and if there is a liquid level, that’s a problem.
Agree with the person above. There should be no liquid level when the furnace is being heated; if there is any liquid level that blocks the downcomer, backflow will occur! ! ! I’m not very familiar with instruments; it’s the first time I’ve heard that the liquid level indication is related to density. I always thought it was calculated based on the pressure difference between two points! ! Study more!* !
Level gauges generally measure liquid levels based on pressure differences, but different densities result in different pressure differences; therefore, to achieve accurate measurements, it is necessary to ensure that the density is known. In chemical production, as long as the density changes little enough to meet the production requirements, there is no need to measure the density separately.
The Russian Ikofis Na-22 radioactive densitometer is an ideal alternative to hazardous gamma radiation sources such as cobalt 60 and cesium 137. Thanks to its outstanding advantages including low radiation levels, high precision, and the absence of approval procedures, it greatly facilitates the use of densitometers in various industries. It poses no harm to operators or the environment, while also reducing costs associated with use and maintenance. Thus, it contributes to improving the technical level of China’s automation industry!
The Russian Ikofis Na-22 radioactive densitometer is an ideal alternative to hazardous gamma radiation sources such as cobalt 60 and cesium 137. Thanks to its outstanding advantages including low radiation levels, high precision, and the absence of approval procedures, it greatly facilitates the use of densitometers in various industries. It poses no harm to operators or the environment, while also reducing costs associated with use and maintenance. Thus, it contributes to improving the technical level of China’s automation industry!