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[Julian]

(Shouldn't it be loz⁶  rather than loz⁵  )

To be perfectly honest I'm not sure, sums has never been my strong point ... the logic I used was that the first z counted as part of the string.

I'm on a par with earth worms when numbers get bigger than 10, but I'm sure someone higher up the evolutionary ladder will be along to correct me.

I just thought it was rather amusing and hoped no one would be that diligent as to check!

[Rotary-Motion]

(Shouldn't it be loz⁶  rather than loz⁵  )

To be perfectly honest I'm not sure, sums has never been my strong point ... the logic I used was that the first z counted as part of the string.

I'm on a par with earth worms when numbers get bigger than 10, but I'm sure someone higher up the evolutionary ladder will be along to correct me.

I just thought it was rather amusing and hoped no one would be that diligent as to check!

and im sat wondering how do you get that 5 or 6 up the top of the font

I wonder divide by pie, steak and kidney being my favourite 

[Julian]

(Shouldn't it be loz⁶  rather than loz⁵  )

To be perfectly honest I'm not sure, sums has never been my strong point ... the logic I used was that the first z counted as part of the string.

I'm on a par with earth worms when numbers get bigger than 10, but I'm sure someone higher up the evolutionary ladder will be along to correct me.

I just thought it was rather amusing and hoped no one would be that diligent as to check!

and im sat wondering how do you get that 5 or 6 up the top of the font

I wonder divide by pie, steak and kidney being my favourite 

It means to the power of ... same as squared or cubed.  I'm just not smart enough to know if it's to the power of 5 or 6.

[Rotary-Motion]

RM¹

 

[Julian]

RM¹

 

There could only ever be one!

[Rotary-Motion]

RM¹

 

There could only ever be one!

highlander

 

[lozzzzzz]

Hi all,

Its been a while.  I've been on holiday and buying a car   and just generally not getting much done on the processor

But yesterday I finished reinforcing the tank mount:



And started making the bracket to hold the pump:


And got to a position where I was able to test the pump:



And......      The pump leaks        

I've emailed the seal guy and told him how I assembled it.  He seems to think there was nothing wrong with the way I did it.  So I took it to bits again and cleaned the bits, checked the important faces of the rotary seal and reassembled (spotlessly clean)....  Still leaking. 

Next I'll try just leaving it running as it might have to "bed in", Seal kit man used to work a pump place and said occasionally they had to bed in for a bit. 

More to come

[Jamesrl]

I don't want to be picky but you'll be putting the best part of 450lbs on to a VERYsmall surface area.

As your cone and hole are not truly round you've reduced the contact are even further,  any vibration,  and there will be some, could cause the edge of the support chewing through the cone.

Whilst I'm at it you'd be best advised to get rid of the plastic pipe, when it fails you're gonna end up with a lot of hot oil/bio to deal with.

[lozzzzzz]

Agreed on those points.  The plumbing is a temporary job simply to test the pump, it will look very different before oil goes in.  The support for the tank will be different too.  I plan to add something to spread the load.  The point of contact you mention is far worse than you can imagine at the moment, but I haven't filled the tank very much for testing the pump. 

On that note......   The pump is a monster!!!  I drained over 50 litres in well under 10 seconds, I'm sure it was more like 5 seconds, there is a really strong reaction force too, you have to lean into it    

Just got to stop the b***dy thing leaking. 

Tried "Bedding it in" this afternoon, went from 2 drips a second to 1 a second.  I'm in contact with the pump seal man.  I really hope I can get this sorted. 

[Dickjotec]

Welcome back.
Dick

[Julian]

Big pumps are really good for speeding processing time (cue posts singing the praises of eductors!), but take care if you intend to pump wash!

Also, there's a bit on rejuvenating mechanical seals on the wiki ... http://www.biopowered.co.uk/wiki/Pump_-_Mono_MS

There's got to be a use for those wheels when in processing mode.  It will be a great disappointment if you haven't come up with one by the end of the build ... hose reel perhaps?

[Jamesrl]

(cue posts singing the praises of eductors!)

 Nah, can't be arsed, too busy with 3d printers now.

[nigelb]

From a purely personal point of view I'd employ another lever valve and connect it to the bottom nipple of the tank. If you have a problem with the pump or pipework the fluid in the processor needs to isolated. You're asking for trouble not having having one there

[lozzzzzz]

Julian, I might well have a go at that seal rejuvenating, nothing to lose before giving in and getting another. 

I'll put blades on the wheels and connect up a generator, harvest some wind energy

The plumbing is just temporary for testing the pump, there will be valves everywhere, including on the bottom of the tank. 

[nigelb]

The plumbing is just temporary for testing the pump, there will be valves everywhere, including on the bottom of the tank.

My appologies there Loz. Just looked at the other pics and can see the valves. I was only looking at the one with the pump when I posted up. The other pics didn't register. Sorry!