classic | mobile
 

Search...

 

A generator powered by compressed air
4th Quarter 2011, Pneumatic systems & components


Supplied locally by BMG, an importer and distributor of Metal Work pneumatic products, it is extremely easy to use. All that is needed to obtain a 24 V DC power supply is to connect a compressed air pipe to the input with an M8 connector. No power cables, electric connectors or electrical rotating manifolds are needed and there is no need to replace flat batteries, the big drawback of battery operated systems.

Supplied locally by BMG, an importer and distributor of Metal Work pneumatic products, it is extremely easy to use. All that is needed to obtain a 24 V DC power supply is to connect a compressed air pipe to the input with an M8 connector. No power cables, electric connectors or electrical rotating manifolds are needed and there is no need to replace flat batteries, the big drawback of battery operated systems.

A constant voltage of 24 V is maintained, regardless of the air pressure and the electric load applied. It can be left on and can produce electricity for tens of thousands of hours. It is switched off by cutting off the compressed air supply. A valve such as the V2VL from Metal Work’s line-on-line series can be used. Alternatively a 2/2 or 3/2 solenoid valve can be used, even at a distance from the Pneumo-power.

The minimum operating pressure is 0,4 MPa for the 3 W model and 0,3 MPa for the 7,5 and 12 W models. The maximum operating pressure is 0,7 MPa. If a higher power is used the Pneumo-power stops, the green light switches off and the red light starts flashing. It restarts automatically as soon as the power drops below the power threshold. The rated power depends on the input pressure.

Compressed air consumption depends on the model and pressure, so to avoid wastage it is important to select the most suitable model. However consumption is low. It requires 50 nl/min to generate 7,5 W, which is the amount of air that can pass through a hole of 0,8 mm in diameter.

Although the electricity generated by the Pneumo-power costs more than mains power, a positive economic balance is possible in applications where cables, copper or gold connectors can be eliminated. Metal Work is planning a new version which will reuse residual energy from the pneumatic cylinder discharge. This will save a considerable amount of energy.

Pneumo-power bears the CE mark as it has passed tests in accordance with the following electromagnetic compatibility standards:

* EN 61000-2: Part 6-2: Generic standards – Immunity for industrial environments.

* EN 61000-2: Part 6-3: Generic standard – Emission standard for residential, commercial, and light-industrial environments.

Pneumo-Power also complies with CEI EN 50014, 50021 and 50281-1-1 and can be marked Ex II 3 GD Eex nA II T5 X. A huge advantage in explosive environments is the absence of power cables connecting mains and utilities because the electricity is generated at the utilities themselves. The casing is made of treated and painted aluminium so it is impact resistant. The index of protection is IP65, which means the electronic circuit is insulated from liquid and dust. It comes with a silencer/filter and the maximum noise level is 75 dB at 1 metre.

The Pneumo-power can be used to power a rotating device, replacing the normal brushes for electrical contact (which are subject to wear) with a pneumatic rotating joint. It can also be used to power control units such as a PLC and PC; wireless receiver-transmitter nodes; sensors and actuators in an area covered by wireless nodes; emergency lights; and any general application where a 24 V DC power supply is required.

For more information contact Mark Johnson, BMG Hydraulics, +27 (0)11 614 2004, mjohnson@bmghydraulics.net, www.bmghydraulics.net


Share via email     Print this page  

Further reading:

  • Pneumatic stars for air cushions
    1st Quarter 2017, Festo, Pneumatic systems & components
    Packaging solutions from Festo.
  • Valve manifolds deliver local innovation and flexible design
    1st Quarter 2017, SMC Pneumatics South Africa, Pneumatic systems & components
    SMC Pneumatics continues to drive design excellence and application with its SY series of valve manifolds which is manufactured locally at its production facilities in Midrand, Johannesburg.
  • Vacuum filter removes both dust and water droplets
    1st Quarter 2017, SMC Pneumatics South Africa, Pneumatic systems & components
    A pioneering vacuum filter designed to remove both dust and water droplets has been launched by SMC Pneumatics.
  • A new class of air dryers
    1st Quarter 2017, Artic Driers International , Pneumatic systems & components
    Artic Driers International has released the new economically-priced R Class air dryers.
  • Vacuum lifters raise packaging ­efficiency
    1st Quarter 2017, Tectra Automation, Pneumatic systems & components
    Tectra Automation supplied three Schmalz vacuum lifters to mining supplier RSC Ekusasa Mining’s packaging lines at its resin manufacturing facility in Wadeville, Johannesburg.
  • Cylinders for the food and beverage industry
    1st Quarter 2017, SMC Pneumatics South Africa, Pneumatic systems & components
    SMC has designed a series of stainless steel cylinders that can be used with utmost confidence in the food and beverage industry.
  • SMC to manufacture valve ­manifolds
    4th Quarter 2016, SMC Pneumatics South Africa, Pneumatic systems & components
    SMC’s new SY series of valve manifolds will be manufactured on-site in the company’s brand new production facilities.
  • Engine test bench
    4th Quarter 2016, Hyflo Southern Africa, Pneumatic systems & components
    Hyflo Cape Town was approached to design and build a system to supply diesel and oil to a V20 3300 kW diesel engine test bench. The project has been undertaken by China North Rail as part of Transnet’s ...
  • Legendary compressed air treatment, equipment and support
    4th Quarter 2016, Artic Driers International , Pneumatic systems & components
    Artic Driers is celebrating its 25th anniversary in South Africa, driven by Cockfield family members Barbara, Shelly, Paul, and of course Allen. The company has grown to be the leader in compressed air ...
  • Manual production systems ­enhance production capabilities
    4th Quarter 2016, Tectra Automation, Pneumatic systems & components
    BEKA Schréder has increased its average production rate of LED luminaires by 50% through four new semi-automated manual production systems (MPS) supplied by Tectra Automation at its Olifantsfontein factory. ...
  • Compressors deliver 13% efficiency improvement
    4th Quarter 2016, Pneumatic systems & components
    Ingersoll Rand has introduced the new RS30 and RS37 models, the first compressors in a series of new oil-flooded rotary screw air compressors known as the Next Generation R-Series. This delivers world ...
  • Innovative new valve manifold
    3rd Quarter 2016, SMC Pneumatics South Africa, Pneumatic systems & components
          This series offers outstanding flexibility and efficiency together with reduced operating costs. Motion Control’s editor paid a visit to Ernst Smith, product manager for electronic components, to ...

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    classic | mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.