Should flame arresters be installed on the breather valve of the acidic water tank and on the vent line that comes out of the deodorization tank?
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I have a few questions for the experts: (1) Should flame arresters be installed on the breather valve of the acidic water tank and on the vent pipeline that leads out of the deodorization tank? (2) What about the lean amine liquid tank? (3) What are the diameters of the acid water pipes leading to and from the acid water tanks, the sizes of the breather valves, and the dimensions of the pipes connecting to the water seal tank? (4) What are the diameters of the pipes for the lean amine fluid entering and leaving the lean amine fluid tank, the size of the breather valve, and the dimensions of the pipes leading to the water separation tank? O(∩_∩)O Thank you @ylb913
The processes vary from one company to another. After a sulfur-containing wastewater tank of a certain company exploded last June, Sinopec required that flame arresters be installed on each of the gas pipelines connecting the tanks. Except for the section from the bottom of the tank to the pump inlet which is DN250, everything else is DN200. Around 2012, after desulfurization and deodorization, the gas from our tank tops was released into the atmosphere at high altitude for over three months, only to be struck by a thunderbolt. Then, for most of the time, it goes into the acidic gas flare; however, the acidic gas flare has also experienced multiple spontaneous ignitions and explosions, which is why a nitrogen pressurization line was installed on the tank only last year.
The processes vary from one company to another. After a sulfur-containing wastewater tank of a certain company exploded last June, Sinopec required that flame arresters be installed on each of the gas pipelines connecting the tanks. Except for the section from the bottom of the tank to the pump inlet which is DN250, everything else is DN200. Around 2012, after desulfurization and deodorization, the gas from our tank tops was released into the atmosphere at high altitude for over three months, only to be struck by a thunderbolt. Then, for most of the time, it goes into the acidic gas flare; however, the acidic gas flare has also experienced multiple spontaneous ignitions and explosions, which is why a nitrogen pressurization line was installed on the tank only last year.
So what are the sizes of the breathing valves for your acidic water tanks and the pipes for the water removal tanks?
We don’t have a breather valve; the vapor from the top of the tank goes directly to the water seal tank, with a branch leading to desulfurization and deodorization before reaching the water seal tank. A water seal tank functions like a safety valve!
So how was your on-site high-altitude emission system improved later on?
It is said that a water-sealed tank is much better than a breather valve. What exactly is the reason for that?