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"Nehmo Sergheyev" <nehmo54@hotmail.com> wrote in message
news:1144441129.471545.19160@v46g2000cwv.googlegroups.com...
> Whole house vacuum clearer systems have access ports (inlets) where a
> user can plug-in a flexible pick-up tube. Behind the access ports are
> tubes that lead to a central vacuum clearer. The user aims the end of
> the flexible pick-up tube at the dirt, and the suction takes the dirt
> via the tubes to a container in the central vacuum cleaner. This
> article describes one setup: http://snipurl.com/ottj
>
> The vacuum cleaner itself is larger and perhaps has a quieter motor
> than portable units, but it's conventional in design. A fan covered by
> a dust filter provides the suction.
>
> But what about positioning the motor and fan on the other side of the
> dirt? Make the house airtight, and when using the vacuum close the
> usual exhaust ports, like the ones for the kitchen and bathrooms. Make
> an opening from the outside of the house to the inside, and have a fan
> in it blowing through a filter (for pollen etc.) toward the inside. In
> other words, have a fan that pressurizes the house. Behind each access
> port, have a tube goes directly to a screened-in container outside. The
> user closes up the house, starts the pressurizing fan, and uses the
> flexible pick-up tubes as in the conventional arrangement. Dust and
> gases get removed from the house, and the larger pieces of trash get
> caught in the screened-in containers.
>
> I see advantages to this kind of system:
>
> The tube system is simple and cheap.
>
> Short tubes going outside are unlikely to clog.
>
> Instead of capturing most of the dust as with a conventional unit, you
> exhaust the dust to the outside. This exhaust doesn't need much of a
> filter. A screen would prevent you from littering the neighborhood.
>
> Relatively clean incoming air goes to the fine filter. This would need
> infrequent replacement.
>
> Pick-up tubes can be different sizes.
>
> There's a possibility of quiet operation.
>
>
> Would this be a practical system? Has anybody ever seen anything like
> it?
>
> --
> (||) Nehmo (||)
>
It would not be practical because
1. You would never be able to seal a house as well as you wanted and if you
did, you would not be able to sell the concept to many customers. You would
need to seal better than tyou would for caulking cold air entry.
2. You could not open a door or have kids entering or leaving the house
while you cleaned. "Kids we are on lockdown until I finish blowing the dirt
out" (it isn't a vacuum)
3. It will hurt your ears when you have a bad sinus day due to the rising
and falling baromatric pressure in the house.
4. Air is compressable, so even if you switched on a compressor with X cfm
airflow, the airflow at the exit port would be less and delayed acording to
how much air volume in the house there is. Airflow would be slow at the
exit port.
4. Most of the compressed air in the room would flow right over the dirt to
get to the exit tube, leaving most of the dirt inside the carpet.
5. It would force dust further into the carpet as air leaked through the
unsealed subfloor
Can I blow any more holes in your idea.
It would and does work for smoke removal though.
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Re: Pressure Vacuum Cleaner for Whole House
