Issn: 2350-0328 I nternational j ournal of



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Bog'liq
03-adilbek-13

 
 
 
 
 
 
ISSN: 2350-0328 
I
nternational 
J
ournal of 
A
dvanced 
R
esearch in 
S
cience, 
E
ngineering and 
T
echnology 
Vol. 8, Issue 3 , March 2021 
Copyright to IJARSET 
 
www.ijarset.com

16791
Cape Pulizindan on the Amu Darya river is damless and this, in turn, affects the level modes in the front chamber of the 
first pumping station, which determine the working modes of the pumping units of the first pumping station and the 
operating modes of the entire cascade of pumping stations; 
- due to the long-term operation of axial pumps, their hydraulic system for turning the blades out of order and they were 
welded at various angles of rotation in the pumps. This does not make it possible to maintain the specified performance 
of the PS and the entire cascade; 
- failure to take into account the distribution of water flow parameters in the supply canal to the first pumping station, 
in the canals between the pumping stations of the cascade in time and in space, gives incorrect values of the parameters 
and time of transient processes in the canals when the modes of their operation change; 
- the absence of automation and telemechanics systems during the operation of the cascade of pumping stations of the 
Karshi main canal, various types of which functioned in previous years, does not make it possible to maintain at least 
the specified operating modes of the PS cascade. 
During the operation of the PS KMC cascade under these conditions, there are constant losses of water and energy 
resources. It should be noted that research on improving the operation modes of large PS cascades using modern 
control methods based on computer technology and new PS equipment in the country has not been carried out in recent 
years. 

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