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
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