New chopper pump achieves high efficiency without compromising on cutting efficiency

Problematic solids corresponding to sanitary towels, plastic luggage, textiles and wooden are being found increasingly typically in wastewater. Pumping and sewage remedy vegetation are therefore increasingly reaching their limits; units get clogged up and break down.
In times when low lifecycle prices are enjoying an ever more necessary role, HOMA Pumpenfabrik offers an power efficient and dependable answer for areas where a excessive supply head is required, but at the identical time, a diverse vary of solids is expected: the Alligator chopper pump collection. The newly developed OC impeller of the Alligator collection allows effective operation via a strong cutter system. Thanks to the usage of extremely sturdy chilled chrome cast iron, the primary elements which are topic to essentially the most stress carry out reliably even with abrasive substances such as sand. HOMA will be presenting เกจ์ออกซิเจนsumo for the primary time at IFAT 2022 in Munich.
“The lowest potential lifecycle prices have gotten more and more necessary 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 dependable pumps that attain excessive supply heads with great efficiency.” With its new Alligator chopper pump collection, which may also be out there as an explosion-proof model, HOMA has developed a very environment friendly response to this demand.
Cutter system shreds all solids with high effectivity
“Our objective was to achieve high delivery pressures within the medium flow price vary,” reports Konstantin Pörsch. Without forfeiting pump fee, the improved effectivity meant that a smaller, cheaper and more energy saving motor than in different pumps in the identical operating range was enough. To achieve this, HOMA developed a brand new cutter system that successfully shreds and removes massive quantities of various solids similar to tear-resistant hygiene wipes, plastic baggage and wood, which additionally get into the wastewater via surface water. The specifically designed impeller has built-in cutters and a sharp-edged radius of 10 mm to the damage plate, which is also geared up with its personal cutter. This design allows the two central components to work collectively to catch solids, break them down and in the end take away them from the suction area by way of integrated grooves in the wear plate.
To enable higher effectivity without compromising on cutting efficiency, the blades of the impeller additionally curve strongly backwards. As a outcome, in the 50 Hz model, a circulate rate of as much as one hundred thirty m³/h and a supply head of as a lot as 57 m can be achieved with energy consumption of 5 to 12 kW. In the 60 Hz version, with energy consumption of eight to twenty kW, a move rate of as much as one hundred forty m³/h and a delivery head of up to eighty two m are possible. The suction cowl mounted on the pump housing can additionally be used to adjust the slicing hole between the impeller and the wear plate with assistance from six set screws. “The energy of our new Alligator sequence, which is out there for wet properly installation in addition to dry set up, is its great effectivity and efficient cutter system, coupled with an extended service life,” provides Konstantin Pörsch.
Low lifecycle prices because of wear-resistant design
In order to achieve not only the finest possible effectivity values in the operating range required for these kinds of wastewater purposes, but additionally to scale back lifecycle prices total, HOMA attaches nice importance to low-maintenance operation along with efficiency. The impeller and put on plate, which are the parts subject to essentially the most stress, are made of extraordinarily sturdy chilled chrome forged iron, which withstands even abrasive substances corresponding to sand within the pumped medium. In addition, the hydraulics were optimally designed for the operating range using computational fluid dynamics (CFD) to extend efficiency and to get rid of any chance of solids increase, which can negatively impression performance and result in pricey 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 excessive effectivity and wear-resistant supplies,” Konstantin Pörsch sums up. “This makes them notably appropriate for waste water functions that require high delivery pressure, however at the same time need to cope with many alternative kinds of solids.”
HOMA will be presenting the new Alligator chopper pump sequence for the primary time at IFAT 2022 in Munich. This and different innovations, such as the upkeep slide with sliding motor mount, will be defined and demonstrated by the HOMA gross sales group in Hall B1 at Stand 429/528.

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