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PRODUCTS & APPLICATIONS HYDRAULICS & PNEUMATICS
HATCHING SOLUTIONS FOR SOLENOID VALVE USE
Based in Somerset, EmTech Hatchery Systems designs and manufactures large scale egg incubators for chickens and other types of poultry. Used around the world, these are essential when rearing poultry for meat, as well as eggs, which can also be used in research for the development of vaccines. When using the incubators, breeders and farmers need
to ensure the shortest hatching window in order to achieve uniformity and quality, as well as high welfare standards for the new-born chicks. Typically, hatching takes place over 18 days, followed by a three-day hatching window. The crucial factor in minimising the time period is controlling
temperature variation, and EmTech’s machines are designed not to exceed 0.6°C. While the temperature bandwidth begins at around 0.1°C early in the incubation process, as embryos develop they emit heat. Controlling the temperature and ensuring a maximum variation of 0.6°C achieves a hatching window of just 12 to 24
hours that produces well-conditioned, unstressed, chicks. Accurate temperature control is achieved with a PLC system
that commands a bi-directional paddle fan, via a cold air system. To achieve consistent and reliable air regulation, the hatchery depends on a series of solenoid valves provided by fluid control specialist, Bürkert. EmTech’s PrimoTech is a single-stage machine, which means that eggs are set in a single batch for consistency. The system features between two and 24 trolleys, each containing trays of eggs that achieves a total capacity between 9,072 and 162,432 eggs. Each pair of trolleys sit beside a tapered blade paddle fan that circulates cool air, controlled by a variable speed drive and PLC. Cold air is provided through a series of copper coils that contain cold water refrigerant, and a combination of solenoid valves is used to control cold air supply to the trolleys. The brass and stainless steel solenoid valve body ensures
long-term, corrosion-free use, and the elastomer seals, involving FKM and EPDM, maintain integrity during near constant use.
Bürkert
www.burkert.co.uk/en
PUMPS IMPROVE IRRIGATION EFFICIENCY
Canally Almond Orchards is a 10,000 Ha development in Australia’s Sunraysia region. Here, nine dryland cropping farms have been converted into over 4000 Ha of almond orchards containing 1.4 million trees. Multiple pumping stations transport water from the Murray and Murrumbidgee rivers down 12,300km of drip tube, ensuring water supply to the tree roots. Engineering company Stantec designed
several of the irrigation systems, and designing the pump stations and carrying out system energy optimisation were key aspects of the project. Pumping processes would take up a large proportion of the total energy used at the orchards, so achieving even a marginal efficiency gain would deliver sizeable compound cost savings over long-term operation. Two of the properties within the
aggregation are Junction Park and Weimby. Three pump stations will deliver the water – the River pump station servicing both Junction Park and Weimby, and the Junction Park dam pump station, while the Weimby dam pump station is yet to be constructed. Stantec calculated a duty point of 440 l/s at a head of 30m for each of the River pumps, 233 l/s at 53m
for each of the Weimby pumps, and 337 l/s at 65m for each of the Junction Park pumps. Efficient and reliable pumps with a low net positive suction head (NPSHr) were therefore required. After receiving the duty requirements
and assessing the irrigation system design, Sulzer supplied a range of nine axial split case pumps from its SMD range. Once installed, every pump delivered efficiencies in excess of 86%, resulting in considerable energy savings for the orchards. As river water often contains sediment
and other abrasive particles, it can cause premature wear on pump internals, eventually reducing efficiency and durability. However, these pumps have a duplex steel alloy impeller, ensuring extended pump reliability. Shane Larkin, senior principal irrigation designer at Stantec said: “We chose Sulzer pumps for a number of reasons. Chief among them was the excellent efficiency and the low NPSHr. The range of hydraulics and the duplex impellers also ensured that these pumps were a good choice for this application.”
Sulzer
www.sulzer.com/en/
DISENGAGEABLE TWIN FLOW TRUCK PUMP SAVES FUEL AND REDUCES EMISSIONS
New from the Pump & Motor Division Europe of Parker Hannifin is the F4 series, a disengageable twin flow truck pump for the mobile hydraulics market. Merging technology from the F2 twin flow pump and F3 axial piston fixed pump series has resulted in a simple and flexible solution for any vehicle requiring separate flows of differing capacities. This will have multiple applications in vehicles such as salt spreaders, hook loaders, forestry cranes, sewage trucks, snow ploughs and
36 DESIGN SOLUTIONS JUNE 2023
many others. The patented clutch function lets the user engage and disengage the
pump from the diesel engine on the move, without turning the engine off, by pressing
a switch on the dashboard. This enables substantial fuel savings and a significant reduction
in CO2 emissions. If, for example, a truck (with a hook
loader and a detachable snow plough) that uses the pump runs for 260 hours in its first
month, using power take-off (PTO) for just 56 of those hours, around 1.2kW per hour less power is required when the pump is disconnected. This equates to about 50 litres less fuel needed in that
month alone, and a reduction in CO2 emissions. The clutch feature also reduces wear and tear on the pump, while lowering noise emission levels. “The ability to disengage a twin flow pump is a huge money saver in terms of fuel savings and less wear on the pump,” explained Anders Larsson, product leader.
Parker Hannifin
www.parker.com/PMDE
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