Deaerator level
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I have a question regarding the level measurement in the current deaerator. In the past, double-chamber balanced containers were used, as well as double-flange diaphragm level gauges. The pressure is 0.04 Mpa and the temperature is 104 degrees. Since the pressure isn’t high, I don’t want to use balanced containers; however, I’m concerned that using a double-flange diaphragm gauge might result in unstable level readings, given that steam is continuously generated inside. Seeking guidance, thank you.
The requirements for measuring the level in the deaerator are not high; many types of level gauges can be used, and magnetic flap level gauges also provide stable readings.
The local level gauge manufacturer provided magnetic flap level gauges, but I would like to use a different type. I have used guided wave radar units with protective casings before, and they worked well as well; they are also easy to adjust. However, there is concern that owners will find the cost of radar level gauges to be high.
Magnetic flap level gauges also come in models with remote transmission.
I know there are those with transmitters. I previously read that for measuring the level in devices such as boiler drum tanks, different types of level gauges should be used to prevent issues with the measurement results due to the same measurement principle being used.
It’s more accurate to use a two-chamber balanced container.
Double-flange designs are generally more expensive than double-chamber balanced containers, and their measurement accuracy is also lower. Actually, there’s no need to buy a balance vessel; one can simply set up the piping externally, and the functionality will be the same as that of a two-chamber system. With a single pipeline installation and the installation of an inlet differential transmitter, you don’t need to worry about it for 10 years; it is more reliable, requires no maintenance, and is more accurate than any other level gauge such as magnetic flip valves. It’s one of the best methods for measuring liquid level without a doubt
Double-flange transmitters are generally used to measure the liquid level in sealed containers. The measurement of the deaerator level using differential pressure transmitters and magnetic float level gauges is standard, offering traditional and reliable performance. The suggestion in #7 is good; I have also used it. However, for boilers and deaerators, the measurement and control systems are usually supplied as part of a complete package, so it is possible to make suggestions to the supplier regarding the brand to be used.
We use magnetic float level gauges with remote transmitters for measurement, and the results are excellent; we’ve been using them in various locations for many years now!