Hi all,
I am still in the long process of putting together my dust extraction system. I will have 225mm PVC running horizontal from the cyclone prior to splitting into 150mm pipes down to the machines. The theory (as I understand it) is that I should have a second 150mm open (or equivalent) so that the air-speed in the 225mm pipe is enough to keep the dust suspended. From all of my reading, it would have been better if we had 200mm PVC but that is the way it goes. So I am thinking (and trying to increase my understanding)........
If I only run with a single 150mm opening (connected back to my 225mm) I would expect to get at least some of the dust dropping into the 225mm pipe as it won't have the air-speed to keep it all suspended. However, I think having a bit of dust permanently in the 225mm pipe will decrease its area / volume so this could have a benefit.
The reason I am thiinking of the above is so I can run my DC at 50hz instead of 60hz (at least sometimes on less noisy machines) which will be a lot quieter. With a 4hp motor I would still expect to get the 1250cfm through my 150mm pipes.
Does it make sense to do what I am thinking? I am pretty sure I will have missed something.....I have even tried to think of a way of 'filling in' some of the 225mm PVC (eg: glue some foam on the inside) but that seems painful.
thanks
Mick
I am still in the long process of putting together my dust extraction system. I will have 225mm PVC running horizontal from the cyclone prior to splitting into 150mm pipes down to the machines. The theory (as I understand it) is that I should have a second 150mm open (or equivalent) so that the air-speed in the 225mm pipe is enough to keep the dust suspended. From all of my reading, it would have been better if we had 200mm PVC but that is the way it goes. So I am thinking (and trying to increase my understanding)........
If I only run with a single 150mm opening (connected back to my 225mm) I would expect to get at least some of the dust dropping into the 225mm pipe as it won't have the air-speed to keep it all suspended. However, I think having a bit of dust permanently in the 225mm pipe will decrease its area / volume so this could have a benefit.
The reason I am thiinking of the above is so I can run my DC at 50hz instead of 60hz (at least sometimes on less noisy machines) which will be a lot quieter. With a 4hp motor I would still expect to get the 1250cfm through my 150mm pipes.
Does it make sense to do what I am thinking? I am pretty sure I will have missed something.....I have even tried to think of a way of 'filling in' some of the 225mm PVC (eg: glue some foam on the inside) but that seems painful.
thanks
Mick
0 commentaires:
Enregistrer un commentaire