Aeration pumps with ‘green’ motors

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 373 KB
• Volume: 2010
• Category: Article
• ISSN: 0262-1762
• DOI: 10.1016/s0262-1762(10)70278-9

✦ Synopsis

Control system improves screw pumps

Hydraulic and engine pumps on show

Allweiler has developed a new control system to help regulate the speed of its screw pumps.

Allspeed uses a proprietary control algorithm which adaptively controls the associated frequency converter in real-time so the pump can adjust to changing conditions at individual tools at less than 500 ms. Speed jumps of up to 5,000 1/min and pressure differentials of up to 120 bar can be achieved and the pump can approach the tools'