Hi LittleInch,
Sorry for the confusion. Yes the pump sucks air out of the system to create a "negative" pressure to such fluid through the filter. The "controls" is just a series of valves and NRV and pressure gauge. I just put controls as It was just a quick sketch and didn't want to draw in...
Okay guys, need a little help with a work problem. Our QC labs called me down to analyse a little problem with one of their pieces of kit and I'm scratching my head a little. I might be missing something really obvious but thought better to ask and look the fool.
So, here's a break down of the...
It is a good idea, And I shall endeavor to have a look and see what kind of effect it may have.
The solvent is kept in external tanks, so if we say for argument that the temperature outside is 4C, the solvent line is about 60% outside with the tank, the other 40% is inside the factory which is...
Well, we are getting some thermal cameras in for the electrical engineers so could use that when they arrive to look at the line. Although according to the data sheet on BCA, the boiling point 1atm is 184-195 Celsius. So it is unlikely to boil, and 99% of the pipework is visible from the ground...
BTrueBlood, the solvent is Butyl Cellosolve Acetate, which I'm pretty sure isn't particularly reactive with air, but its definitely an idea to see what it does react with.
3DDave, Its worth a try, but again the issue is that as soon as the pressure build up is relieved once through the...
Okay, so I got tired of all the second hand data and set up a test myself. Two of the 4T mixers would be filled with 1.8T of solvent and the results and data recorded. What I found was that the normally operating machine stopped quietly, as designed. When the other machine stopped, it sounded...
Zeus, its a in in house blend of several solvents. While it is rather potent, if it was a solvent reaction or thermal one then the build up would be a constant effect. But it only happened after this specific machine was activated.
LittleInch, the dispensing pipe into the mixer is at the top...
Well, we had an "interesting" incident the other day. On of the large machines has some solvent dispensed into it. after which the pressure at the gauge reads an increase of just over 1 bar a minute. within 15 minutes it reaches 20bar. As the pressure is building, I go to check on the pump. As I...
The Vertical Tube type things were just pipe identification codes, just removed the codes for this particular drawing. All the lines carry similar solvents across the bridge, but I could request the R&D department to run some tests on the fluid to see if that is the issue.
As for the point at...
Okay, here is a stripped back version of the line. For obvious reasons I cannot include any other information. This is just to give you an idea of the layout of the system. So, you have the two tanks which store the same fluid (used one at a time). From these the solvent is pumped through the...
something else I should probably mention that just came to mind. The pressure build up seems intermittent, and build up seems to be slow, and not instantaneous after the line closes. Although this is hard to tell as the hand dispensing points where the problem is most visible isn't used that...
All your advice guys is very helpful thus far. I shall be looking into each suggestion to see if it affects the system, although the company recently has a large data storage swap over so getting certain information is difficult, the joys of modern technology.
I shall try to attain all the information you're asking for, although you will have to excuse if some of this is new to me as I've only just started at my position here last week and been thrown a little in the deep end.
In regards to the tank, it is its self approximately 5 meters high and...
Ok, having a bit of trouble here. there seems to be a gremlin in a system at work that is causing a pressure build up but we cannot find the cause.
in essence, the system is run off a huge vertical storage vessel, the solvent is pumped out via a pump at approximately 40psig. This then feeds two...
