New chopper pump achieves high effectivity without compromising on slicing performance

Problematic solids such as sanitary towels, plastic baggage, textiles and wood are being discovered increasingly often in wastewater. Pumping and sewage remedy crops are due to this fact more and more reaching their limits; items get clogged up and break down.
In times when low lifecycle prices are taking part in an ever extra necessary role, HOMA Pumpenfabrik provides an energy efficient and dependable solution for areas the place a excessive delivery head is required, however at the similar time, a various range of solids is anticipated: the Alligator chopper pump series. The newly developed OC impeller of the Alligator collection permits efficient operation by way of a strong cutter system. เกจวัดแรงดันแก๊สlpg to the use of extremely durable chilled chrome forged iron, the principle elements which may be topic to the most stress perform reliably even with abrasive substances similar to sand. HOMA will be presenting the brand new Alligator chopper pumps for the primary time at IFAT 2022 in Munich.
“The lowest possible lifecycle prices have gotten increasingly necessary in water and wastewater functions,” explains Konstantin Pörsch, Project Manager in the Design & Development department at HOMA Pumpenfabrik GmbH. “There is a growing demand for power saving and dependable pumps that attain excessive delivery heads with nice efficiency.” With its new Alligator chopper pump collection, which may even be obtainable as an explosion-proof model, HOMA has developed a very efficient response to this demand.
Cutter system shreds all solids with excessive effectivity
“Our objective was to realize high supply pressures in the medium flow price vary,” reports Konstantin Pörsch. Without forfeiting pump fee, the improved efficiency meant that a smaller, cheaper and extra vitality saving motor than in other pumps in the identical working vary was adequate. To achieve this, HOMA developed a brand new cutter system that effectively shreds and removes large quantities of various solids corresponding to tear-resistant hygiene wipes, plastic baggage and wooden, which also get into the wastewater via floor water. The specially designed impeller has built-in cutters and a sharp-edged radius of 10 mm to the put on and tear plate, which can additionally be equipped with its own cutter. This design permits the two central parts to work together to catch solids, break them down and ultimately remove them from the suction space via integrated grooves within the put on plate.
To allow greater efficiency with out compromising on slicing performance, the blades of the impeller also curve strongly backwards. As a result, within the 50 Hz version, a move rate of as a lot as a hundred thirty m³/h and a supply head of as a lot as 57 m may be achieved with energy consumption of 5 to 12 kW. In the 60 Hz version, with power consumption of 8 to 20 kW, a move fee of up to one hundred forty m³/h and a supply head of as a lot as 82 m are attainable. The suction cover mounted on the pump housing may also be used to adjust the slicing gap between the impeller and the damage plate with the help of six set screws. “The power of our new Alligator sequence, which is available for wet properly installation as properly as dry installation, is its great effectivity and efficient cutter system, coupled with an extended service life,” adds Konstantin Pörsch.
Low lifecycle costs thanks to wear-resistant design
In order to attain not solely the very best efficiency values in the operating range required for these sorts of wastewater functions, but additionally to reduce lifecycle prices total, HOMA attaches nice importance to low-maintenance operation in addition to effectivity. The impeller and wear plate, which are the elements topic to essentially the most stress, are made from extremely sturdy chilled chrome cast iron, which withstands even abrasive substances similar to sand in the pumped medium. In addition, the hydraulics have been optimally designed for the working range using computational fluid dynamics (CFD) to extend effectivity and to get rid of any possibility of solids building up, which may negatively impact efficiency and lead to expensive 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 power and maintenance prices due to their excessive efficiency and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them notably suitable for waste water applications that require excessive supply pressure, but at the same time should deal with many various kinds of solids.”
HOMA shall be presenting the model new Alligator chopper pump sequence for the primary time at IFAT 2022 in Munich. This and different improvements, corresponding to the maintenance slide with sliding motor mount, will be defined and demonstrated by the HOMA sales staff in Hall B1 at Stand 429/528.

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