Double - Casing Lower Abrasive Rate Centrifugal Pump For Electric
Power Station
Main introduction:
150ZGB(P) wear-resistant slurry pump belongs to ZGB(P) series
slurry pump. It is horizontal, single-stage, single-suction,
cantilever, double-shell, centrifugal slurry pump. ZGB and ZGBP
slurry pumps of the same diameter The overcurrent components are
interchangeable and the external dimensions are the same;
The transmission part of ZGB(P) series slurry pump adopts
horizontal open type thin oil lubrication bracket, and has two sets
of internal and external water cooling systems;
Where a series of slurry pumps (secondary or higher), it is
recommended to use a mechanical seal with high pressure shaft
sealing water;
Single stage or series one stage adopts impeller and packing
combined seal;
The design of this series of slurry pumps is mainly to meet the
development of electric power, metallurgy, coal and other
industries, and to the characteristics of ash removal and slurry
transportation conditions;
Based on decades of experience in design and manufacture of slurry
pumps, we have extensively absorbed advanced technology and
research results from home and abroad, and developed a new
generation of high-flow, high-lift, multi-stage series ZGB (P)
series slurry pumps.
Type meaning
150ZGB(P)
150-------------Discharge Diameter (mm)
Z----------------Slurry Pump
G----------------High Head
B---------------- Series Code
P-----------------Multi-stage pumps (3-4stage)
150ZGB Performance Chart
| Model | Speed (r/min) | Capacity (l/s) | Head (m) | Max.Eff. (%) | NPSH (m) | Shaft Power (kw) | Impeller Dia.(mm) | Pump Weight (kg) | Outlet Dia/Inlet Dia(mm) |
| 150ZGB | 980 | 200-100 | 85.2-90.0 | 77.7-53.3 | 3.8-2.7 | 215.0-1655 | 740 | 3450 | 150/200 |
| 740 | 151.2-75.6 | 48.6-51.3 | 77.7-53.3 | 2.2-1.5 | 92.7-71.3 |
| 980 | 182.4-91.2 | 73.0-77.1 | 77.7-53.3 | 3.3-2.3 | 168.0-129.3 | 685 |
| 740 | 140.0-70.2 | 41.6-44.0 | 77.7-53.3 | 1.9-1.3 | 74.2-56.8 |
| 980 | 169.2-84.6 | 61.8-65.2 | 77.7-53.3 | 2.8-1.1 | 131.9-101.5 | 630 |
| 740 | 129.6-64.8 | 35.2-37.2 | 77.7-53.3 | 1.6-0.6 | 57.6-44.3 |
Structural features:
The ZGB slurry pump has the same structure except for the pump head
part (including the front and rear pump casings, the volute casing,
the front and rear guard plates, the impeller, etc.), and the rest
of the structure is similar. The same series of transmission parts
are used, and the pump head part and the shaft seal part are
pressed below. And the transmission part, respectively, describes
its structural characteristics.
1, ZGB slurry pump shaft seal part: shaft seal has three forms, the
auxiliary impeller shaft seal and packing shaft seal, mechanical
seal.
(1) Mechanical seal: For the condition that is not suitable for the
above two shaft seals, mechanical seal is adopted to reduce the
number of maintenance of the shaft seal part.
(2) Packing shaft seal: The packing shaft seal structure is simple,
the maintenance is convenient, and the shaft seal water is needed.
For the working condition which is not suitable for the shaft seal
of the auxiliary impeller and the working condition for pumping,
the packing shaft seal can be used.
(3) Sub-impeller shaft seal: Single-stage pump or multi-stage
series third-stage pump when the positive pressure of the pump
inlet is not more than 10% of the pump outlet pressure value, the
auxiliary impeller shaft seal can be used, and the auxiliary
impeller shaft seal has no Dilute the slurry, the sealing effect is
good and so on.
2, ZGB slurry pump pump head part: ZGB series slurry pump is a
double pump shell structure, namely the front pump casing, the rear
pump casing and the replaceable over-current part (including
impeller, volute, front guard, Rearguard). The front and rear pump
casings are made of gray cast iron or ductile iron according to the
working pressure. They are vertically opened and bolted. The rear
pump casing has a stop and bolts connected to the bracket. The
discharge port of the slurry pump can be installed at eight angles.
The front and rear covers of the impeller are equipped with back
blades to reduce leakage and improve pump life and efficiency. The
inlets of all types of pumps are horizontal, and the pump rotates
clockwise as seen from the transmission direction.
3. Transmission part: ZGB slurry pump adopts the same series of
transmissions, including bracket and bearing assembly. The pump
shaft has large diameter, good rigidity, short cantilever, and will
not bend and vibrate under severe working conditions. The bearing
adopts single row cone. Roller bearing and deep groove ball bearing
can be combined to withstand the maximum axial and radial load of
the pump. The bearing is lubricated with thin oil. The end of the
bearing body has a sealed end cap, which can effectively prevent
the slurry and other dirt from entering the bearing. ZGB slag The
slurry pump is provided with two hose joints in the bearing body,
which can be connected with the water source to cool the bearing
chamber, so it can work under high ambient temperature to ensure
the safe operation of the bearing and has a high life.
Structural Drawing
Selection & Performance Chart
