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

Problematic solids corresponding to sanitary towels, plastic baggage, textiles and wood are being discovered increasingly often in wastewater. Pumping and sewage therapy vegetation are subsequently increasingly reaching their limits; units get clogged up and break down.
In instances when low lifecycle costs are playing an ever more essential role, HOMA Pumpenfabrik offers an energy environment friendly and reliable answer for areas where a excessive supply head is required, however at the identical time, a various range of solids is expected: the Alligator chopper pump series. The newly developed OC impeller of the Alligator series enables efficient operation through a powerful cutter system. Thanks to the use of extremely sturdy chilled chrome cast iron, the main parts which are subject to essentially the most stress perform reliably even with abrasive substances such as sand. HOMA will be presenting เกจวัดแรงดันเชื้อเพลิง for the first time at IFAT 2022 in Munich.
“The lowest possible lifecycle costs are becoming more and more essential in water and wastewater functions,” explains Konstantin Pörsch, Project Manager in the Design & Development division at HOMA Pumpenfabrik GmbH. “There is a growing demand for energy saving and reliable pumps that attain excessive supply heads with nice effectivity.” With its new Alligator chopper pump collection, which may also 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 goal was to realize excessive supply pressures within the medium circulate rate vary,” reports Konstantin Pörsch. Without forfeiting pump rate, the improved efficiency meant that a smaller, cheaper and more energy saving motor than in other pumps in the identical operating vary was adequate. To achieve this, HOMA developed a new cutter system that successfully shreds and removes massive quantities of diverse solids similar to tear-resistant hygiene wipes, plastic baggage and wooden, which additionally get into the wastewater via floor water. The specifically designed impeller has integrated 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 parts to work collectively to catch solids, break them down and finally remove them from the suction area by way of integrated grooves within the wear plate.
To enable higher efficiency with out compromising on chopping performance, the blades of the impeller also curve strongly backwards. As a end result, within the 50 Hz model, a flow rate of as much as 130 m³/h and a delivery head of as much as 57 m may be achieved with energy consumption of 5 to 12 kW. In the 60 Hz version, with energy consumption of eight to twenty kW, a flow rate of up to 140 m³/h and a delivery head of as much as 82 m are potential. The suction cowl mounted on the pump housing can also be used to adjust the cutting gap between the impeller and the wear plate with the help of six set screws. “The strength of our new Alligator series, which is on the market for moist well set up in addition to dry set up, is its great effectivity and effective cutter system, coupled with a protracted service life,” adds Konstantin Pörsch.
Low lifecycle costs due to wear-resistant design
In order to realize not only the finest possible efficiency values in the working range required for these kinds of wastewater applications, but in addition to scale back lifecycle prices general, HOMA attaches nice importance to low-maintenance operation along with efficiency. The impeller and put on plate, which are the parts subject to the most stress, are manufactured from extremely sturdy chilled chrome forged iron, which withstands even abrasive substances such as sand in the pumped medium. In addition, the hydraulics had been optimally designed for the working vary utilizing computational fluid dynamics (CFD) to increase efficiency and to remove any chance of solids increase, which might negatively impression performance and lead to costly pump failures. “With the newly developed cutter system, the Alligator pumps can effectively break down all solids within the waste water and transport them away, saving both power and upkeep prices thanks to their excessive efficiency and wear-resistant supplies,” Konstantin Pörsch sums up. “This makes them notably suitable for waste water functions that require excessive delivery stress, however at the same time should cope with many different sorts of solids.”
HOMA shall be presenting the model new Alligator chopper pump series for the primary time at IFAT 2022 in Munich. This and other innovations, corresponding to the maintenance slide with sliding motor mount, will be defined and demonstrated by the HOMA sales group in Hall B1 at Stand 429/528.

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