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Other vertical pumps

Vertical Axial Flow Impeller Pumps

Vertical Axial Flow Impeller Pumps

Axial-flow pumps are low-head high-flow designs and aren’t true turbines pump. However, from the outside looking in, axial-flow pumps look a lot like turbine pumps, so we’ve included them in this category.

Vertical Axial Flow Impeller Pumps

Axial-Flow Vertical Pump.jpg

Axial-flow pumps are typically designed for heads no greater than approximately 30 Ft and are often designed to lift water just a dozen feet. They are common in flood-control applications.

Z(H)LB vertical axial-(mixed)-flow pump is a new generaleration product successfully developed by this Company by
means of introducing the advanced foreign and domestic knowhow and meticulous designing on the basis of the requirements
from users and the conditions of use. This series product uses
the latest excellent hydraulic model, wide range of high efficacy,
stable performance and good vapor erosion resistance; the
impeller is precisely cast with a wax mould, a smooth and
unimpeded surface, identical accuracy of the cast dimension to
that in design, greatly reduced hydraulic friction loss and
shocking loss, a better balance of impeller, a higher efficiency
than that of the common impellers by 3-5%.
Flow:800~200000m /h
Head:1~30.6m
Power:18.5~7000kW

Voltage: 355kW
Frequency:50Hz
6kV 10kV


Adopted standard:

GB/T13008 Technical conditions for mixed-flow pump and axial-flow pump

Purpose:

Extensively used for hydraulic projects, farm-land irrigation, industrial water transportation, water supply and drainage of cities and water allocation engineering.

Conditions for use:

Suitable for pumping pure water or other liquids of the phy
-sical chemical natures similar to those of pure water.
Medium temperature: 50
Medium density: 1.05 10 kg/m
PH value of medium:between 5~11

About the structure:

ZLB(Q),HLB(Q) series products are all of a vertical structure and fitted with a vertical motor, With the impeller there are fixed, semi-adjustable and fully-adjustable type. The fixed type means both impeller and hub are cast integrally and the impeller angle is unadjustable; the semi-adjustable type means the impeller can be turned to the desired angle by loosening the fixing screw on it in case the working conditions need to be changed, then fix all the impellers again; Z(H)LQ is the fully-adjustable type, that means the impeller angle can be adjusted through a mechanical
or hydraulic adjustor with or without stopping. 

Vertical axial-(mixed)-flow pump consists of the pump casing and the actuating part. The pump casing generally includes water inlet pipe, impeller, guide vane, pump shaft, elbow, middle pipe, sealing unit and clutch. For both middle and small pumps, a water inlet horn is used as the water inlet pipe while, for the large one, a toggle or bell water inlet passage is used, poured with concrete and fitted with imported basic parts. The adjustable impeller is formed with blade(stainless steel or copper alloy, in general), hub, water guide cone. For the middle and small pumps, both impeller and pump shaft are connected with flat pin and nut while, for the large and fully adjustable ones, a flange is used to connect both hub and main shaft. The pump s guide bearing is a rubber one and can be lubricated with going-through water or additional pure water. When lubricated with the going-through water, it has to be done to supply water for the rubber bearing on the upper side via a water-led pipe and do not stop until water comes out of the pump normally.


Both middle and small pumps are directly actuated by a vertical motor, the motor is mounted on the motor seat and connected with the actuating shaft via an elastic cluth. Inside of the motor seat
there are radial and thrust bearings, lubricated with engine oil or grease; for the one of a bigger power there is a water cooling mezzanine. Large pump is fitted with a large vertical motor, directly mounted on the motor s basic beam, and both motor shaft flange and pump shaft flange (hinged hole) are linked withbolt. The axial force of the pump is borne by the thrust bearing
of the large vertical motor.The pump moves clockwise viewing from the motor.

Description

The said series pumps are used to transfer clear water,rain water,water in iron sheet pits,sewage and seawater,servicing in power plants,iron and steel works,water supply companies,sewage treatment plants,petroleum and chemical industries,mines as well as municipal water supply and drainage projects,farmlands irriagation,flood protection and drain waterlogged farmlands,etc..The temperature of pumped media is below 55°C and reaches to 90°C for special design. The flow rate ranges from 30 to 20000m3/h and the headfrom 7 to 200m.

 

Features

1. Operation smooth,safe and reliable,starting without exhausting vacumn,service life long.

2. Flowing channel simple and reliable,saving the investment for construction of the pump house.

3. Easy to be installed and dismantled. Easy to be maintained and inspected.

4. High efficiency and help saving the cost.


Model description

   500HLBK2000-23                               

   500—Outlet of the pump:500mm   

   HLBK----Vertical Axial Flow Impeller Pumps   

   2000----Designed flow rate at 2000 cubic meters per hour

   23---Designed head at 23 meters              

 

Structure feature:


LK-ST结构图.gif

LK-XD结构图.jpg



1.   Series HLBK  pumps are of vertical single stage axial flow pump

2.   The following structure types are available for the pump:the discharge opening above and/or under the mounting foundation(Type Code named S and X respectively);the axial thrust force born by the pump and/or by the motor(Type Code named T and D);lubricating water from outside and/or from the pump itself.

3.   The intake sump is of wet pit and/or dry pit types.

Wet pit type:lower part of the pump inundated in the intake sump.

Dry pit type:the water enters into the pump,the suction bellmouth is connected with the inlet  pipe of the pump by means of elbow bend pipe of 90.

4.   Rubber guide bearings and /or the Thordon guide bearings are available for  bearings of the pump.

5.   Generally when the nozzle diameter of the pump is under 1000mm , non pull-out type is adopted for the rotor and the discharge opening is above the mounting foundation(Type Code named ST). In this case the axial thrust force and the weight of the rotor are usually born by thrust bearings of the pump itself and  flexible connection is adopted between the pump and the motor.The thrust force and the weight of the rotor can also be born by the motor if required,or other structure types such as SD,XT,XD are available .Rotor pull-out type can also be adopted if required by clients.

Generally when the discharge diameter of the pump is above 1000mm, pull-out type is adopted for the rotor and the discharge opening is under the mounting foundation(Type Code named XD).In this case the axial thrust force and the weight of the rotor are usually born by thrust bearings of the motor and rigid connection is adopted between the pump

and the motor. The axial thrust force and the weight of the rotor can also be born by

the pump if required,or other structure types such as XT,SD,ST are available .Rotor non pull-out type can also be adopted if required by clients.  

6.   When the axial thrust force and the weight of the rotor are born by pump itself,the thrust bearing of the pump is lubricated with dilute oil and is equipped with a temperature detector Pt100 to detect bearing temperature and a pressure type thermometer to detect the temperature of lubricating oil.

7.   The antielectrochemical corrosion appliance is adopted for the part of the pump contacting the liquid to ensure the service life of the pump when seawater is pumped.

8.   The packing seal is adopted for the axial seal of the pump.

9.   The clearance between the impeller and the impeller chamber,i.e.the rotating component and the static component,can be easily adjusted on the pump mounting foundation.

Materials Of Major Parts

Major Parts


Clear water


Seawater


Sewage(incl.of abrasiv powder)


Discharge elbow


Intermediate column  (internal & external)

Q235-A

HT200Ni2Cr

0Cr18Ni9

ZG0Cr18Ni12Mo2

Q235-A


Guide vane,

Suction bellmouth

 

HT200

HT200Ni2Cr

ZG0Cr18Ni9

ZG0Cr18Ni12Mo2

HT200、QT500-7

ZG1Cr13Ni1


Impeller

ZG1Cr13Ni1 HT200

 

ZG0Cr18Ni9

ZG0Cr18Ni12Mo2

 

QT500-7

ZG1Cr13Ni1


Shroud,wearing ring

HT200

ZG2Cr13

 

ZG0Cr18Ni9

ZG0Cr18Ni12Mo2

 

ZG1Cr13Ni1

QT500-7


Main shaft

45、2Cr13

 

 

2Cr13、0Cr18Ni9

0Cr18Ni12Mo2

 

45、2Cr13

1Cr18Ni9


Shaft sleeve

45,2Cr13

2Cr13、0Cr18Ni9

ZG0Cr18Ni12Mo2

 

2Cr13、1Cr18Ni9


Guide bearing


HT200+abrasive rubber


HT200+Thordon bearing


HT200+abrasive rubber


HT200+Thordon bearing


HT200+abrasive rubber


HT200+Thordon bearing

 


Remarks:Other materials are  available at the request of clients.Cast iron is suitable only for closed type impeller.



LK-XD.gif

 


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