Pumps are the machines that
convert the mechanical energy they receive from the power supply into hydraulic
energy. Pumps allow the fluid to reach the pump impeller by bringing the low
pressure field to the suction line. The impeller directs the fluid to the
outlet pipe and transmits it to the desired point. All pumps are divided into
two main groups. These are displacement (positive displacement) and dynamic
(non-positive displacement) type. The energy given to the flow in positive
displacement pumps is periodically. In dynamic pumps, the energy supplied to
increase the velocity of the fluid is continuous. Centrifugal pumps are dynamic
pumps and are the most widely used pump type in agricultural irrigation. The
heart of the centrifugal pump is the impeller. Centrifugal pumps consist of
basic elements such as casing, impeller, diffuser, shaft, seals, stuffing box,
suction and discharge ports, bearings, and couplings. Performance and lifetime
are important for a successful pump. Performance relates to head, capacity and
efficiency. The life span is the total running time of the pump. Pump
construction material affects the performance, lifetime, operating regime and
cost of the pump. In this study, the selection of materials used in making the
centrifugal pump components and the factors affecting the material selection
will be examined. As a result; factors such as the type of liquid to be
conveyed, the substances contained in the liquid, the pumping temperature, the
protection against corrosion, the amount of wear, the place of use of the pump,
working pressure, working conditions, frequency of failure, operation and maintenance costs and life
expectancy of the pump should be considered.
Birincil Dil | İngilizce |
---|---|
Konular | Mühendislik |
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 28 Şubat 2020 |
Yayımlandığı Sayı | Yıl 2020 |