series dredge pump is a kind of new type dredging pump developed by
our company using various advanced computer aided design software,
aiming at the current situation of dilapidated, dredging and reclamation
of rivers and lakes.
series of this dredging pump has the characteristics of excellent
dredging performance, long life, high efficiency, reliable shaft seal,
comprehensive economic’benefits, and other characteristics, can fully
meet the dredging pump requirements, also pass the CCS China
Classification Society ship inspection.
present, the series of dredge pumps have been successfully using in
domestic for 80m3 / h, 100m3 / h, 120m3 / h, 200m3 / h cutter suction,
350m3 / h bucket wheel and cutter suction, 500m3 / h cutter suction
dredging Ship, provide nearly 100 sets pump using in China's Yangtze
River Basin, the Yellow River Basin, the Pearl River Delta, Huaihe
River and other rivers and lakes, for port dredging dredging filling
.In 2006, the company successfully offer the largest domestic 1000WN
dredging pump for the CCCC Shanghai Dredging Corporation Ltd.(SDC) using
in 13500m3 / h drag-suction dredger and received a good economic and social benefits.
Performance and structural characteristics
★ The Good applicability of ship
※ The structure is simple and reliable
~ 500WN dredge pump using a whole single pump shell, single-stage
single-suction structure, according to the connection with the gear box
can provide two typical structure, that is, comes with bracket and pump
box combined. Bracket-type lubrication comes with grease lubrication or
thin oil lubrication.
1000WN dredge pump using whole double pump shell, single-stage
single-suction cantilever horizontal structure, comes with brackets,
forced oil lubrication. The double pump casing can make sure that the
volute can be used until close to wear, and the pump chamber will not
enter the water when the volute is broken.
※ Easy disassembly, easy maintenance
dredging pump used front demolition structure, easy disassembly,
maintenance; at the same time offer special tools for disassembly of
and shaft use four-headed trapezoidal screw connection, can pass a
strong torque, and easy disassembly at the same time, there is an
impeller removal ring on sleeve to removal the impeller easily
★ Excellent dredging performance
※ Cavitation performance is good
dredging pump has a good cavitation performance to ensure bigger
suction ability, while achieving greater dug depth and higher respirable
※ Good pass capacity, wide applicability
WN-type impeller flow channel is width, can continuously pump gravel or high plastic clay without clogging.
※ The performance curve drops abruptly
Make sure the pumping distance has adaptability.
※ The pump performance can be a variety of deployment
pump can change the impeller speed, or change the diameter of the pump
impeller to achieve the same flow pump with head changes.
Impeller, volute , front and back liner (wear-resisting lining) using
anti-wear alloy cast iron with hardness of not less than 58HRC, have
strong impact resistance and of anti-wear properties; The company
successfully developed A31 material, hardness can reach 70HRC.
In the product design process, the service life of all the parts is
matched with each other, and the replacement period of wear-resistant
parts is basically the same, which reduces the maintenance and
★ Water loss is small, high efficiency, low power consumption
to the use of advanced hydraulic models, the efficiency of the pump is
high. WN-type pump efficiency is 2 to 3 percentage points higher than
the average level. In this way, at the same using condition , you can
get lower fuel consumption.
★ Shaft seal is reliable and no leakage
200WN ~ 500WN dredge pump shaft seal using mechanical seal ,packing seal or mechanical seal plus packing compound seal.
~ 1000WN dredge pump shaft seal using screw-type L-shaped rubber seal
device, the seal device include three L-shaped ring and a special
thread with the sleeve composition.