New chopper pump achieves high efficiency with out compromising on chopping efficiency

Problematic solids such as sanitary towels, plastic luggage, textiles and wood are being found increasingly more typically in wastewater. Pumping and sewage remedy crops are due to this fact increasingly reaching their limits; items get clogged up and break down.
In occasions when low lifecycle prices are enjoying an ever more important function, HOMA Pumpenfabrik offers an power environment friendly and reliable resolution for areas the place a high supply head is required, however at the same time, a diverse vary of solids is anticipated: the Alligator chopper pump sequence. The newly developed OC impeller of the Alligator sequence allows effective operation by way of a powerful cutter system. Thanks to the use of extremely sturdy chilled chrome forged iron, the principle elements which may be topic to probably the most stress carry out reliably even with abrasive substances similar to sand. HOMA will be presenting the new Alligator chopper pumps for the first time at IFAT 2022 in Munich.
“The lowest attainable lifecycle prices have gotten more and more essential in water and wastewater functions,” explains Konstantin Pörsch, Project Manager within the Design & Development division at HOMA Pumpenfabrik GmbH. “There is a growing demand for vitality saving and reliable pumps that reach excessive supply heads with great effectivity.” With its new Alligator chopper pump series, which may even be available as an explosion-proof model, HOMA has developed a particularly efficient response to this demand.
Cutter system shreds all solids with high effectivity

“Our aim was to achieve excessive delivery pressures within the medium circulate fee range,” stories Konstantin Pörsch. Without forfeiting pump rate, the improved effectivity meant that a smaller, cheaper and extra power saving motor than in different pumps in the same operating range was enough. To obtain this, HOMA developed a model new cutter system that successfully shreds and removes massive portions of various solids similar to tear-resistant hygiene wipes, plastic bags and wooden, which also get into the wastewater through floor water. The specifically designed impeller has integrated cutters and a sharp-edged radius of 10 mm to the wear and tear plate, which can also be outfitted with its own cutter. This design permits the two central elements to work collectively to catch solids, break them down and ultimately remove them from the suction area via built-in grooves within the put on plate.
To allow larger efficiency with out compromising on chopping efficiency, the blades of the impeller also curve strongly backwards. As a end result, in the 50 Hz version, a move rate of as much as 130 m³/h and a supply head of up to fifty seven m could be achieved with energy consumption of 5 to 12 kW. In the 60 Hz model, with energy consumption of eight to 20 kW, a circulate fee of up to 140 m³/h and a supply head of as a lot as 82 m are potential. The suction cover mounted on the pump housing may also be used to adjust the chopping hole between the impeller and the damage plate with assistance from six set screws. “The strength of our new Alligator collection, which is available for moist properly installation as properly as dry set up, is its great 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 very best effectivity values in the working vary required for these kinds of wastewater functions, but also to reduce lifecycle costs overall, HOMA attaches nice significance to low-maintenance operation in addition to effectivity. The impeller and wear plate, which are the elements topic to the most stress, are manufactured from extremely durable chilled chrome cast iron, which withstands even abrasive substances corresponding to sand within the pumped medium. In addition, the hydraulics had been optimally designed for the working vary using computational fluid dynamics (CFD) to extend effectivity and to get rid of any possibility of solids building up, which may negatively influence efficiency and lead to costly pump failures. “With the newly developed cutter system, the Alligator pumps can successfully break down all solids within the waste water and transport them away, saving both vitality and maintenance costs due to their high efficiency and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them notably appropriate for waste water purposes that require excessive supply strain, however at the identical time need to take care of many various sorts of solids.”

HOMA shall be presenting เกจวัดแรงดันแก๊ส for the primary time at IFAT 2022 in Munich. This and different improvements, similar to the upkeep slide with sliding motor mount, might be defined and demonstrated by the HOMA sales staff in Hall B1 at Stand 429/528.

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