Mechanical pumps, like all pumps, serve to move liquids. Specifically, water mechanical pumps are used to lift water from the depth and for the supply of it, so to speak, to the consumer. But in everyday life, mechanical pumps are used to pump large volumes or to lift water from a large depth, thus alleviate the work of a person. All mechanical pumps have a working mechanism, which actually makes the water flow in the right direction, but in addition to this, it should also have a movement, t.e. the device that makes the working mechanism move. Such a device is an internal combustion engine that converts the internal energy of the fuel into mechanical energy connected by mechanical transmission or an electric motor connected to the working mechanism and feeds the energy of the electric current supplied from the outside. Thus, the difference in working mechanisms allow us to classify them and divide them into the following types. It is centrifugal, gear and vibration pumps. With a laid by pipes, not to use pipeline fittings for example AVK spindle.
The centrifugal pump is a hub with blades located in a spiral case (a snail shape), which has two collectors, one for water supply, and the second for water drainage. In this case, the water entering the pump body receives a rotational effect from the impeller, and under the influence of centrifugal forces it is released into a drainage (pressure) channel. The only minus of such pumps is the need for complete filling the insides of the body with water.
A gear pump is a gear pair, when the water moves along the walls of the case, and when the teeth closes, the water is pushed into a pressure pipe. These pumps do not have such a shortage as centrifugal pumps (preliminary filling with water), but have less performance.
The vibrational pumps do not have rotating parts, and are a double cavity divided by the diaphragm or piston, when this element moves, the liquid is first absorbed into the pump cavity on the one hand, and with further movement it is supplied to the pressure pipeline, while the water is absorbed on the other hand. So the cycle is repeated constantly. Moreover, an important part is assigned to the valve mechanism, which should hold water in its cavities according to the passing cycle. Such pumps have mainly electric drive and should be completely immersed in water, due to the large heating of electromagnets, which move the vibrational mechanism, alternately drawing and pushing out.
In case of all positive points, the use of mechanical systems is necessary, or rather, it is advisable using accumulative containers from accounting for the fact that per person is about 50 liters of water per person.
