Plumbing supply
Time immemorial, people have searched for ways to lift liquids, especially water, to the height. This was necessary to irrigate the fields and filling fortification ditches
surrounding towns and castles. The easiest tool for collecting water – a human hand, two hands are better than one! Therefore, our imaginative ancestors quickly figured pottery
attach to a device for collecting water. It was the first step toward the invention bucket.
Chinese water wheel
Several of these buckets were attached to a chain or wheel. For the rotation of the device and the rise of water used by muscular power of humans or animals. During the
archaeological excavations of such bucket conveyors, made around 1000 BC. er. have been found in Egypt and China. The above illustration shows a reconstructed model of the
Chinese vodocherpatelnogo wheel. This wheel is equipped with attached clay pots, from which upon reaching the top of the poured previously typed at the bottom of the water.
Original development of this device was made in 1724, Jacob Leopold (1674-1727), who was joined to the wheel of a curved pipe. When turning the water wheel was moving to its
axis. The flow of water in the river, in turn, served as the drive for the lift installation. Special attention in this design deserved a form of tubes. It is strikingly similar
to the shape of the blades of modern centrifugal water pumps.
Water wheel Jacob Leopold
Water wheel Jacob Leopold
Archimedes (287-212 years. BC. Er.), The great scientist of antiquity, invented the screw-water-lifting device, later named in his honor. This device raised the water with a
rotating screw inside a pipe, but some of the water always flowed back, because in those days, effective seals were unknown. As a result, was derived the relationship between
the slope of the screw and feed. When you work, you could choose between a large volume of water lifted or greater lift height. The greater the tilt rotor, the greater the
height of the feed with a decrease in performance.
Archimedean screw
Archimedean screw
The principle of the mechanism was very similar to the one on which modern Taco 006 pump. Pump characteristic has a similar relationship between pressure and flow. From
historical sources we know that such Grundfos pumps worked at angles from 37 ° to 45 °. They provided water rise to a height of 2 to 6 meters and had a maximum flow of about 10
m3 / h.
