Dear colleagues (as Pual would like it to be)
and very Dear Steve
Thanks again. I have noted "Inquiry for water jet"
from S&K. I know that this is a shelf item.If you
would like I can send you the process detail at your
personal address. I have lot of things available for
steam ejectors, but much less for water jet ejectors.
so i do not know what should be the velocity at nozzle
and how throat length and sizing for nozzle is made in
Eductors.
Best regards
Shah M. Tanweer
- Steve McKenzie <Mechproj@xtra.co.nz> wrote:
> Hi Shah M. Tanweer
>
> I think we have come to the branch in the road.
>
> As far as "size" goes it is quite clear in the S&K
> website downloads that it
> refers to the suction and the discharge connections
> in inch NB. Have you
> looked at these? It also gives a sizing procedure.
> I suspect that if you do need 1300gpm to do the job,
> then the low efficiency
> of an ejector will make it a bad choice for
> continuous duty. Unless you
> specifically need an ejector then I suggest you look
> at alternatives such as
> liquid ring vacuum pumps. Or perhaps you need
> something like a jet scrubber.
> It is impossible to select as you have provided no
> process conditions.
> If you wish to persist with the ejector you could
> try contacting S-K with an
> enquiry; I have found them helpful in the past, and
> they manufacture.
> For liquid ring pumps, you could google Nash Kinema.
>
> In light of our correspondence to date, I would
> advise against you
> "designing" an ejector at this stage. I suggest you
> buy this one (ejector,
> vacuum pump or whatever) based on a performance
> spec, see how it works, and
> think about designing the next one.
> You may wish to read the article "Selecting Vacuum
> Systems" in Chemical
> Engineering magazine (McGraw Hill) Dec 14 1981.
>
> Thats it for me on this topic.
>
> Good luck
>
> Steve McKenzie
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Received on Thu Oct 23 05:54:00 2003