New chopper pump achieves high effectivity with out compromising on cutting performance

เกจ์ลมsumo corresponding to sanitary towels, plastic baggage, textiles and wooden are being found increasingly more typically in wastewater. Pumping and sewage remedy plants are therefore increasingly reaching their limits; items get clogged up and break down.
In occasions when low lifecycle costs are enjoying an ever more important position, HOMA Pumpenfabrik offers an energy environment friendly and dependable answer for areas the place a high supply head is required, but on the identical time, a diverse vary of solids is anticipated: the Alligator chopper pump collection. The newly developed OC impeller of the Alligator series permits efficient operation by way of a strong cutter system. Thanks to using extremely sturdy chilled chrome cast iron, the principle components which are topic to the most stress carry out 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 costs are becoming increasingly necessary in water and wastewater applications,” 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 attain high supply heads with nice efficiency.” With its new Alligator chopper pump sequence, which may also be out there as an explosion-proof model, HOMA has developed a particularly efficient response to this demand.
Cutter system shreds all solids with excessive effectivity
“Our objective was to achieve excessive supply pressures within the medium circulate rate range,” reports Konstantin Pörsch. Without forfeiting pump fee, the improved effectivity meant that a smaller, cheaper and extra vitality saving motor than in other pumps in the identical operating vary was sufficient. To obtain this, HOMA developed a model new cutter system that effectively shreds and removes massive quantities of diverse solids similar to tear-resistant hygiene wipes, plastic luggage and wood, which additionally get into the wastewater through floor water. The specially designed impeller has integrated cutters and a sharp-edged radius of 10 mm to the damage plate, which can also be equipped with its own cutter. This design permits the two central parts to work collectively to catch solids, break them down and in the end take away them from the suction space by way of built-in grooves within the wear plate.
To enable higher effectivity without compromising on cutting efficiency, the blades of the impeller also curve strongly backwards. As a end result, within the 50 Hz version, a circulate price of as a lot as 130 m³/h and a delivery head of as much as 57 m can be achieved with energy consumption of 5 to 12 kW. In the 60 Hz model, with energy consumption of eight to 20 kW, a flow fee of up to one hundred forty m³/h and a supply head of up to eighty two m are potential. The suction cowl mounted on the pump housing may 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 collection, which is on the market for moist nicely set up as well as dry installation, is its nice efficiency and efficient cutter system, coupled with an extended service life,” provides Konstantin Pörsch.
Low lifecycle prices due to wear-resistant design
In order to achieve not only the finest possible efficiency values within the operating range required for these sorts of wastewater applications, but additionally to scale back lifecycle costs overall, HOMA attaches great significance to low-maintenance operation along with efficiency. The impeller and wear plate, which are the components topic to the most stress, are made from extremely sturdy chilled chrome cast iron, which withstands even abrasive substances such as sand within the pumped medium. In addition, the hydraulics had been optimally designed for the operating range utilizing computational fluid dynamics (CFD) to increase effectivity and to remove any risk of solids building up, which can negatively impact 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 power and upkeep prices due to their excessive efficiency and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them significantly appropriate for waste water functions that require excessive delivery stress, however on the same time should take care of many different sorts of solids.”
HOMA might be presenting the new Alligator chopper pump collection for the primary time at IFAT 2022 in Munich. This and other innovations, similar to the upkeep slide with sliding motor mount, might be defined and demonstrated by the HOMA gross sales group in Hall B1 at Stand 429/528.

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