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New chopper pump achieves high efficiency without compromising on slicing performance

Problematic solids corresponding to sanitary towels, plastic bags, textiles and wood are being discovered increasingly usually in wastewater. Pumping and sewage remedy plants are subsequently increasingly reaching their limits; models get clogged up and break down.
In occasions when low lifecycle prices are playing an ever more necessary position, HOMA Pumpenfabrik offers an vitality efficient and reliable resolution for areas the place a high delivery head is required, but on the identical time, a diverse range of solids is predicted: the Alligator chopper pump series. The newly developed OC impeller of the Alligator sequence allows efficient operation through a robust cutter system. Thanks to the usage of extremely sturdy chilled chrome forged iron, the principle parts that are topic to essentially the most stress perform reliably even with abrasive substances corresponding to sand. HOMA might be presenting the model new Alligator chopper pumps for the primary time at IFAT 2022 in Munich.
“The lowest attainable lifecycle costs have gotten more and more important in water and wastewater purposes,” explains Konstantin Pörsch, Project Manager within the Design & Development department at HOMA Pumpenfabrik GmbH. “There is a growing demand for vitality saving and reliable pumps that attain excessive delivery heads with nice efficiency.” With its new Alligator chopper pump series, which may even be available as an explosion-proof version, HOMA has developed a very environment friendly response to this demand.
Cutter system shreds all solids with excessive effectivity

“Our aim was to attain excessive delivery pressures within the medium flow price vary,” reports Konstantin Pörsch. Without forfeiting pump fee, the improved effectivity meant that a smaller, cheaper and extra power saving motor than in different pumps in the identical operating vary was enough. To obtain this, HOMA developed a brand new cutter system that successfully shreds and removes giant quantities of diverse solids corresponding to tear-resistant hygiene wipes, plastic luggage and wooden, which additionally get into the wastewater by way of floor water. The specifically designed impeller has built-in cutters and a sharp-edged radius of 10 mm to the damage plate, which can also be outfitted with its own cutter. This design allows the two central elements to work together to catch solids, break them down and ultimately remove them from the suction space by way of built-in grooves in the put on plate.
To allow larger efficiency without compromising on cutting performance, the blades of the impeller additionally curve strongly backwards. As a end result, within the 50 Hz version, a circulate rate of up to a hundred thirty m³/h and a delivery head of up to fifty seven m could be achieved with energy consumption of 5 to 12 kW. In the 60 Hz model, with power consumption of 8 to 20 kW, a flow price of up to a hundred and forty m³/h and a supply head of as a lot as 82 m are potential. The suction cover mounted on the pump housing can be used to regulate the slicing hole between the impeller and the wear and tear plate with the help of six set screws. “The strength of our new Alligator series, which is out there for moist well installation as properly as dry set up, is its nice efficiency and effective cutter system, coupled with a long service life,” provides Konstantin Pörsch.
Low lifecycle prices thanks to wear-resistant design

In order to achieve not solely the greatest possible effectivity values in the operating range required for these kinds of wastewater applications, but also to minimize back lifecycle prices general, HOMA attaches nice significance to low-maintenance operation in addition to efficiency. The impeller and put on plate, that are the components subject to essentially the most stress, are made of extraordinarily durable chilled chrome cast iron, which withstands even abrasive substances similar to sand within the pumped medium. In addition, the hydraulics had been optimally designed for the working vary utilizing computational fluid dynamics (CFD) to increase efficiency and to remove any possibility of solids build up, which can negatively impact efficiency and lead to expensive pump failures. “With the newly developed cutter system, the Alligator pumps can successfully break down all solids in the waste water and transport them away, saving both energy and upkeep costs because of their excessive effectivity and wear-resistant supplies,” Konstantin Pörsch sums up. “ เพรสเชอร์เกจ makes them notably suitable for waste water purposes that require high supply strain, but at the identical time need to deal with many alternative kinds of solids.”

HOMA might be presenting the new Alligator chopper pump collection for the first time at IFAT 2022 in Munich. This and other improvements, such as the maintenance slide with sliding motor mount, will be defined and demonstrated by the HOMA gross sales staff in Hall B1 at Stand 429/528.
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