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Revolutionary Pump Technology - History - How It Works - How It Is Used

new pump technology

A high-volume low-speed (HVLS) pump is a type of positive displacement mechanical rotary vane pump that provides +95% volumetric efficiency enabling seal-age capable of lifting a full atmosphere below 240 rotations per minute, yet being able to provide high mechanical efficiencies of over +78%. HVLS pumps provide self-priming capabilities and able to operate from 0 to 240 rotations per minute, supporting forward and reverse operation and being capable of providing high volume output working in pump or turbine mode. An HVLS pump can be used to move both high and low viscosity fluids without emulsifying or blending the pumped medium. To enable such volumetric efficiency an HVLS pump must provide a concentric pumping or working zone that will not change in shape or area during its operation giving full activation on all vane surfaces.

How it is used:

The application of the HVLS pump is used industrially and commercially. In industrial applications moving fluid product can be costly especially when using air or conventional positive displacement pumps. HVLS pumps installed in manufacturing pipe lines for product delivery provides high efficacy, quiet operation and due to its positive displacement and volumetric efficiency an HVLS pump can meter product giving great accuracy for product delivery. The quiet operation provides a more comfortable and productive work environment for workers and the public when used in industry, commercial and public buildings. The HVLS pumps ability to provide high efficiency at low rpm makes it possible to activate the pump by hand, motor or an engine drive system. The HVLS pump can run in geographical locations that have power or those without a power allowing for use in remote locations during emergencies or by emergency services. Being able to self-prime and lift a full atmosphere in under 6 seconds an HVLS pumps can be of great help to flood and fire service people. Agriculture use for moving fluids, for irrigation and livestock is beneficial due to its portability and ability to use high torque low rpm direct drive sources such as kinetic energy from wind, streams or rivers. Activation or moving high volumes of fluids is now possible by driving an HVLS pump by a water wheel or wind turbine. This ground breaking technology can be used as a prime mover and hydraulically drive a PMA (permanent magnet alternator) remotely or directly as a turbine direct drive.

History:

In 2004 Mr. Danial Patterson set out to design a mechanical device that would produce high volume at a low rotational speeds and to make use of high torque low speed kinetic energy. In 2009 Mr. Danial Patterson and Andrew Masse invented the first HVLS pump that was awarded patented approval on the 29th of March 2016
(U.S. Patent No. 9,297,379), this new HVLS pump was a new innovative type of positive displacement Oval Chamber Vane Pump that could attain an almost perfect seal during operation and usable at low rpm driven by hand crank. This type of pump technology was originally developed to convert high torque low rotational kinetic energy sources into something more accessible or usable through a hydraulic transmission.


Section through HVLS Pump Design, Fig 1 - U.S. Patent No. 9,297,379

The First High Efficiency HVLS Pump Manufactured by WindTrans Systems Ltd. 0 to 240 rpm, Fig 2,

 

How the HVLS pump works:

HVLS pump works on the principal that there must be reduced component contact within the assembly and the movement of these components will only happen at times of little or no load in order to increase mechanical efficiency. The pump will fully seal in the pumping or work zone and will provide concentricity in this part of the chamber (see Fig 1) to ensure a consistent volume therefore allowing greater sealage and reducing loads during operation. The cam must be round or rounded working outside an oval chamber yet the cam must be concentric to the part of the chamber designated as the pumping zone. The vanes will not be asked to move in the pumping zone and will only allow leakage to its following vane before it is asked to move by the round cam. HVLS - Oval Chamber Round Cam Positive Displacement Van Pump: See Fig 1 & 2 showing design by Andrew Masse Under ideal conditions a HVLS pump can be used by hand crank (kinetic means) or engine/motor power and will displacing 1.5 US gallons per rotation (4”inlet & 4” outlet) running at 120 rotations per minute. It will displace a minimum of 169 to 180 US gallons per minute (100% to 94% volumetric efficiency depending on the age and ware of the pump). The same pump in operation lifting 5.25’ and pumping a head of Mechanical efficiencies of 9.1’ will consume 0.812 Horse Power with an average mechanical efficiency of 86%. The HVLS pump capable of providing 80.4% overall efficiency. An HVLS pump must provide superior internal flow abilities as documented by McMaster University report (See Fig 3,4,5) “Low-Torque High Throughput Pump/Turbine, this reduced turbulence and superior flow abilities increases lift abilities at low rpm.

HVLS Pump Report by McMaser University,Fig 3


Flow turbulence in HVLS pump, Fig 4.

Image showing HVLS flow dynamics, Fig 5.

 

The HVLS pump provides a consistent rotational draw that is non-stop in one direction enabling it to lift without disruption. The constant lift, superior sealage and reduced turbulence within the pumping chamber enables the HVLS pump to draw a full atmosphere at low rpm unlike any other pump design. Typically pumps operate at a higher rate of speed to overcome leakage and to increase their output volume. Existing pumps technology will also increase their size also in an effort to increase their volume output. An HVLS pump uses a different mindset in that an increase in sealge enables one to reduce speed and size of the pump without reducing the output volume. HVLS Pumps at testing lab and showing self-priming lifting one atmosphere at bridge, Canada see Fig 7.


Lab testing HVLS pumps, Fig 6

HVLS pump self-prining and lifting over 27' in height Fig 7, U.S. Patent No. 9,297,379

Definition:

A high-volume, +95% volumetrically sealed chamber enabling full vacuum, with vane contact within the pumping chamber or working zone not to equal over 1/3 of the 390 degrees of rotor rotation. Vanes that are supported on a minimum of 3 sides and not being asked to move under load in the pumping chamber or working zone. The main purpose of an HVLS pump is to provide high volume with superior sealage using as little energy as possible. See Fig 1 showing section through HVLS pump.

Measuring Pump Performance:

In general, the pump community has globally accepted standard for testing rotodynamic, centrifugal, mixed flow and axial type pumps. Due to the novel design of the HVLS pump and its development a testing station (see Fig 6) and system was developed using these standards in partnership with Conestoga College, Dr. Min Chen, Matthew Chermesnok and a commercial partner as outlined in the technical report (see Fig 8,9,10): Prototype Testing System for HVLS Pump shown in Fig 6.



HVLS Test Report from Conestoga College, Fig8

Lab data loging during live testing. Fig 9
HVLS Pump efficiency vs rpm, Fig 1

 

 

 

 

 


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