Chemical Equipment Update
Lean mean and very ‘green’ – tank containers the safe and efficient logistical solution for bulk liquids
T
he inter-modal tank container is increasingly recognised as providing an extremely safe, economical and ‘low-carbon’ means of transport and storage across a wide range of industries. Indeed, a recent study concluded that tank containers represent the most energy-efficient and environment-friendly way of moving intermediate quantities of bulk liquids and gases. Reduced handling, safer filling and discharging, robust design, tamper-proof construction and re-usability over a life of up to 20 years-plus are just a few of the reasons why
Fig. 2. Electric heated frame tank for temperature controlled transport of sensitive products.
Fig. 1 Typical 10 and 20ft tankcontainers for chemical transport.
this ultra efficient and safe form of transport is increasingly displacing the inefficient, costly and sometimes hazardous shipment of liquids in drums. UBH International has a highly qualified and experienced team of design and applications
engineers at the disposal of customers to offer advice and develop solutions to the most challenging and intractable logistical problems. The robustness, resilience and versatility of these transportable tanks is assured, being based upon many years of proven service in the most testing of environments. The UBH range of brings benefits to
companies around the globe, not only in efficiency and profitability but also, critically, in employee safety and environmental security. UBH operates a ISO 9001:2000 quality management system and also holds ASME U and R Stamps for its manufacture and repair work. It UBH promotes, where possible, the eco-friendly concept of inter-modal transport, which allows swift, secure and economical transfer of tanks between road, rail and container vessel. ❒
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UBH International Ltd is based in Burscough, Lancashire, UK.
www.ubh.co.uk
Motor control gear offers savings in space, energy and cost
A
BB is launching its next-generation motor control gear, including contactors, manual motor starters and soft starters; all are said to offer improved performance and safety, energy savings, and simplified ordering and stock holding. A key feature of the AF and AF...Z contactors is ABB’s innovative AC/DC electronic coil technology. Covering both AC and DC voltages between 24-500V, 50/60Hz and 20-500V DC, the coil reduces the number of contactor types by 90 per cent, from 2500 to just 250 parts. This is particularly helpful for OEMs and distributors because the range is easier to specify and stock. With a reduction in AC pull-in coil consumption of from 30 per cent (for AF models) to 80 per cent (for AF...Z models), the contactors benefit from reduced losses per phase and less heat generation, thereby enabling users to improve the energy efficiency of their panel systems. ABB says the extent of these efficiency improvements can be highlighted by comparing
the new 4KW AF09 contactor (with its reduced holding power of 2.2VA) with a typical older generation 4kW device (with a holding power of 8VA). If both contactors are energised for 14 hours every day over the course of one year at £0.07/kWh, the AF09 would offer an energy cost of 71 pence compared to over £2.58 for the older device. When multiplied by the estimated 10million 4-18.5kW contactors in use in the UK alone, the potential savings that could be achieved by introducing ABB’s new contactor range quickly become apparent. Even greater savings can be achieved where the new AF...Z low-consumption coil contactor is used. Designed for direct connection to PLC outputs (24V DC, 500mA) in process applications, the AF...Z contactor offers a holding power of just 1.7VA. Yhe device offers an energy cost saving of around £2.04 per contactor. By eliminating the need for an additional interface relay, the AF...Z also reduces the time, cost and space previously required for connecting to a PLC.
For installers, the new range’s standardised 45mm housing also enables it to be easily integrated into an existing installation. Said to be around 33 per cent slimmer than other products on the market, the range helps to save space, enabling users to reduce both the overall size and cost of their panels. With no need for mounting plates, the cost required to install reversing or star-delta starters can now be reduced, with installation times typically cut by over 50 per cent.
An important benefit of the AF contactor range is its ability to manage the effects of unstable voltage conditions caused by poor network conditions, motor inrush current or voltage drops along cable lengths. As well as extended coil operating limits, the new AF contactors feature built-in surge protection, which eliminates the need for an extra surge suppressor and provides added reliability and safety in the event of voltage fluctuations. ❒
For more information, visit
www.abb.com www.engineerlive.com 9
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