Single Shell Long Axis Vertical Diagonal Flow Pump For Urban Water Supply

Model meaning

　　1600HLB (HLBK, HLKS, HLKT)-20

　　1600 —— Pump outlet diameter is 1600mm

　　HLB - Non-extractable vertical diagonal flow pump

HLBK - Extractable vertical diagonal flow pump

HLKS - vertical diagonal flow pump with outlet above the foundation layer

HLKT - Extractable vertical diagonal flow pump with adjustable blades

　　20 —— The pump design point head is 20m

Performance range

Maximum flow rate: 25,000 cubic meters per hour (110,000 gallons per minute)

Maximum lift: 70 meters (210 feet)

Structural features

　　1. Installation method

　　Single-layer foundation: The motor and pump are directly installed on one foundation layer, and the pump outlet can be arranged below the foundation layer or above the foundation layer.

　　Double-layer foundation: The motor and pump are installed on their respective foundation layers, and the pump outlet is between the two foundation layers.

The pump can be installed in wet pit or dry pit.

Wet pit installation: The lower part of the pump is immersed in the suction sump.

Dry pit installation: The pump uses pipe water inlet, and a 90° elbow water inlet bend is used to connect the pump suction bell and the water inlet pipe.

　　2. Pumps are divided into three types: non-extractable type and rotor-extractable type (including guide vane body) or pump as a whole extractable type. When the pump diameter is below 1000mm, the pump rotor is generally non-extractable; when the pump diameter is above 1000mm, the pump rotor is generally extractable.

　　3. Pump impellers are divided into integral impellers or combined impellers.

　　4. The axial force of the pump is borne by the thrust bearing of the motor or the thrust bearing of the pump. When the pump diameter is below 1000mm, the axial water thrust and the weight of the rotor of the pump are generally borne by the thrust bearing of the pump body, and an elastic connection is adopted between the pump and the motor. When the pump diameter is above 1000mm, the axial water thrust and the weight of the rotor of the pump are generally borne by the thrust bearing of the motor, and a rigid connection is adopted between the pump and the motor. When the pump body bears the axial water thrust and the weight of the rotor, the pump thrust bearing is lubricated with thin oil, and the thrust bearing component is equipped with a Pt100 temperature measuring element to measure the bearing temperature or a pressure thermometer to measure the lubricating oil temperature.

　　5. The bearings of the pump are rubber (wear-resistant, corrosion-resistant, seawater-resistant rubber) guide bearings and Sailong bearings. The pump shaft is usually equipped with a protective tube filled with clean pressure water for lubrication and flushing of the guide bearing. The water volume can be controlled by a flow relay to prevent water shortage from damaging the bearing. When the pump is used to transport sewage or water containing particles, an automatic shaft seal device is installed at the end of the guide bearing in the guide vane body to prevent the medium from entering the bearing after shutdown; the lubrication forms include external lubrication water and pump self-lubrication.

　　6. In addition to using materials resistant to seawater corrosion, pumps that transport seawater also use sacrificial anode method and external power supply method cathodic protection devices to prevent electrochemical corrosion of pump parts.

　 7. The pump is directly driven by the motor through a rigid or elastic coupling.

8. The pump suction inlet has two types: the usual trumpet-shaped or improved elliptical guide pier.

Features

1. Smooth operation, safe and reliable, no need to start by vacuuming, and long service life.

2. The pump is small in size, the foundation occupies less area, the length of the pump below the foundation can be adjusted, and it has strong adaptability.

3. The flow channel is simple and reliable, saving the infrastructure investment of the pump room.

4. Reasonable structure, easy assembly and disassembly, easy and simple maintenance and overhaul.

5. High pump efficiency, reducing operating costs

Type spectrum

Material