New chopper pump achieves excessive efficiency without compromising on slicing efficiency

Problematic solids such as sanitary towels, plastic bags, textiles and wooden are being found increasingly typically in wastewater. Pumping and sewage therapy plants are due to this fact increasingly reaching their limits; models get clogged up and break down.
In times when low lifecycle costs are playing an ever extra necessary position, HOMA Pumpenfabrik provides an energy efficient and reliable answer for areas the place a high supply head is required, however at the identical time, a various vary of solids is anticipated: the Alligator chopper pump series. The newly developed OC impeller of the Alligator sequence permits effective operation via a robust cutter system. Thanks to the utilization of extremely sturdy chilled chrome cast iron, the main components which would possibly be subject to the most stress carry out reliably even with abrasive substances similar to sand. HOMA might be presenting the new Alligator chopper pumps for the primary time at IFAT 2022 in Munich.
“The lowest attainable lifecycle costs are becoming more and more important in water and wastewater purposes,” explains Konstantin Pörsch, Project Manager in the Design & Development department at HOMA Pumpenfabrik GmbH. “There is a rising demand for power saving and dependable pumps that attain high supply heads with nice efficiency.” With its new Alligator chopper pump series, which may also be obtainable as an explosion-proof version, HOMA has developed a particularly efficient response to this demand.
Cutter system shreds all solids with excessive effectivity
“Our objective was to realize high delivery pressures in the medium circulate price vary,” reports Konstantin Pörsch. Without forfeiting pump fee, the improved efficiency meant that a smaller, cheaper and more energy saving motor than in other pumps in the identical working range was sufficient. To achieve this, HOMA developed a model new cutter system that effectively shreds and removes massive portions of numerous solids such as tear-resistant hygiene wipes, plastic baggage and wooden, which also get into the wastewater via surface water. The specially designed impeller has integrated cutters and a sharp-edged radius of 10 mm to the damage plate, which is also outfitted with its own cutter. This design permits the two central elements to work together to catch solids, break them down and ultimately remove them from the suction area through integrated grooves within the wear plate.
To allow larger effectivity with out compromising on chopping performance, the blades of the impeller also curve strongly backwards. As a result, in the 50 Hz model, a circulate fee of up to a hundred thirty m³/h and a delivery head of as much as fifty seven m may be achieved with power consumption of 5 to 12 kW. In the 60 Hz model, with energy consumption of eight to 20 kW, a flow price of as a lot as one hundred forty m³/h and a supply head of as a lot as eighty two m are possible. The suction cover mounted on the pump housing can additionally be used to adjust the chopping gap between the impeller and the wear and tear plate with the assist of six set screws. “The power of our new Alligator sequence, which is on the market for wet nicely installation in addition to dry set up, is its great efficiency and efficient cutter system, coupled with a long service life,” adds Konstantin Pörsch.
Low lifecycle prices due to wear-resistant design
In order to attain not solely the absolute best efficiency values in the operating vary required for these sorts of wastewater applications, but additionally to scale back lifecycle prices general, HOMA attaches great importance to low-maintenance operation along with efficiency. The impeller and wear plate, that are the components subject to probably the most stress, are manufactured from extremely sturdy chilled chrome cast iron, which withstands even abrasive substances such as sand in the pumped medium. In addition, the hydraulics have been optimally designed for the operating range using computational fluid dynamics (CFD) to increase efficiency and to get rid of any possibility 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 in the waste water and transport them away, saving both power and maintenance costs due to their high efficiency and wear-resistant materials,” Konstantin Pörsch sums up. “ เกจแรงดัน makes them notably suitable for waste water functions that require excessive delivery stress, however at the identical time should take care of many different kinds of solids.”
HOMA will be presenting the model new Alligator chopper pump sequence for the primary time at IFAT 2022 in Munich. This and other innovations, corresponding to the upkeep slide with sliding motor mount, might be defined and demonstrated by the HOMA gross sales staff in Hall B1 at Stand 429/528.

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