Question regarding the method of measuring the liquid sulfur level.

A top-mounted flip plate is feasible; if conditions permit, it is best to add a weighing module.

The blow-type one is incredibly useful, beyond my expectations.

This post was last edited by ylb913 on 2016-4-28 at 21:45. We have used the radar; as the original poster said, the sublimation of sulfur is indeed not effective. We currently have those with double flanges, and they are very unstable; it seems that there is a problem with the upper flange in the gas phase area. The pressure is basically at atmospheric level, so it seems that those with single flanges should not have any issues. We have also used the magnetic flip version with a top-quality design, and it encountered the same problem of jamming due to sulfur deposition. Later, the manufacturer produced a version with a steam jacket; they said it had been sent to our factory, but we still haven’t received it. It was over a decade ago, and no one urged us to collect it; I guess it’s long gone by now. Our backblast type is really useful; it’s at least stable and fairly accurate. It supplies 1.5 cubic meters of air, and after four years, there have been no problems at all. The first time I saw it was in 2005 in Nishitai; the second time was when I saw the drawings from Huizhou, designed by the Italian company NIGI. It was then that I learned that France already had this technology 40 years earlier.

This post was last edited by zxg.wylton on 2016-4-29 08:34. 1. Whether a radar can be used effectively depends on whether there is enough space in the tank; if there is little interference, then the radar can function properly. For example, in our 3,000-cubic-meter large tanks (used for measurement), radar is employed; without heat tracing at the interfaces and before those interfaces were modified, cleaning was required roughly once every two months. After modifying the interface (without heat tracing), it has been operating with no maintenance required (no cleaning needed) for 6 years. To this day, radar is considered the best instrument for measuring liquid sulfur levels: it offers good linearity, high accuracy, and is only related to the liquid level interface. 2. For the slot type, a radar is also used for design; due to the limited space in the slot, by changing its installation location, the failure rate dropped from once every month to once every year. 3. To avoid flooding in the tank caused by failures of the slot pump radar, we have developed an improved magnetic flap that is installed on the side without any heating element, ensuring at least 5 years of maintenance-free operation. Of course, the accuracy of magnetic flap switches is poor, making them unsuitable for measurement purposes. 4. The unit used by the adjacent department for blowing air should also be reliable, but maintenance-free operation is probably not possible? My concept of maintenance-free operation is this: once it’s installed, apart from replacing components that are damaged, there’s no need to worry about anything else. There are some instruments that we haven’t even looked at in years, yet they continue to work perfectly – does that count as maintenance-free?

The blowing method, also known as the reverse blowing method, is the most commonly used technique for measuring the liquid level of liquid sulfur! It is also a relatively reliable method.

We’ve been using it for three years with no problems at all; even if the steam stops, it still works fine once it’s restarted

I’m from Beijing Guda; we have a product designed specifically for such working conditions. The GDRD71 model uses an electric scraper type. For details, QQ1521005121

What was mentioned on the 9th floor regarding blowing air (it should actually be nitrogen) refers to the backflow type level gauge； It wasn’t clear what type of level gauge is used on floor 11; I assume that a magnetic flip plate gauge with steam heating is used there. The two people mentioned different measurement methods.