New chopper pump achieves high efficiency with out compromising on slicing efficiency

Problematic solids similar to sanitary towels, plastic bags, textiles and wood are being found more and more usually in wastewater. Pumping and sewage therapy vegetation are subsequently increasingly reaching their limits; units get clogged up and break down.
In occasions when low lifecycle prices are playing an ever more necessary function, HOMA Pumpenfabrik provides an energy efficient and dependable solution for areas where a excessive delivery head is required, but on the similar time, a diverse range of solids is predicted: the Alligator chopper pump sequence. The newly developed OC impeller of the Alligator collection permits efficient operation through a strong cutter system. Thanks to using extremely sturdy chilled chrome forged iron, the principle parts which are subject to probably the most stress perform reliably even with abrasive substances similar to sand. HOMA might be presenting the model new Alligator chopper pumps for the primary time at IFAT 2022 in Munich.
“The lowest attainable lifecycle prices have gotten increasingly 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 vitality saving and reliable pumps that attain high delivery heads with nice efficiency.” With its new Alligator chopper pump series, which may even be available as an explosion-proof version, HOMA has developed a very environment friendly response to this demand.
Cutter system shreds all solids with excessive efficiency

“Our goal was to attain high delivery pressures in the medium move rate vary,” reports Konstantin Pörsch. Without forfeiting pump price, the improved efficiency meant that a smaller, cheaper and extra vitality saving motor than in other pumps in the same working range was sufficient. To obtain this, HOMA developed a new cutter system that effectively shreds and removes large portions of various solids such as tear-resistant hygiene wipes, plastic luggage and wooden, which also get into the wastewater through surface water. The specifically designed impeller has built-in cutters and a sharp-edged radius of 10 mm to the damage plate, which can also be outfitted with its own cutter. This design permits 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 in the put on plate.
To enable greater 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 move rate of as a lot as one hundred thirty m³/h and a supply head of up to 57 m can be achieved with energy consumption of 5 to 12 kW. In the 60 Hz version, with energy consumption of eight to 20 kW, a flow fee of as much as a hundred and forty m³/h and a delivery head of up to 82 m are potential. The suction cowl mounted on the pump housing can additionally be used to regulate the slicing gap between the impeller and the put on and tear plate with the help of six set screws. “ pressure gauge of our new Alligator sequence, which is out there for moist well installation as nicely as dry installation, is its great efficiency and effective cutter system, coupled with a long service life,” adds Konstantin Pörsch.
Low lifecycle costs due to wear-resistant design

In order to attain not only the greatest possible effectivity values within the operating range required for these kinds of wastewater applications, but additionally to reduce back lifecycle costs total, HOMA attaches nice significance to low-maintenance operation along with effectivity. The impeller and put on plate, that are the elements topic to essentially the most stress, are made of extremely sturdy chilled chrome forged iron, which withstands even abrasive substances corresponding to sand within the pumped medium. In addition, the hydraulics had been optimally designed for the operating range using computational fluid dynamics (CFD) to extend effectivity and to remove any possibility of solids increase, which may 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 each power and maintenance costs thanks to their high efficiency and wear-resistant supplies,” Konstantin Pörsch sums up. “This makes them notably suitable for waste water applications that require excessive supply stress, however on the identical time need to deal with many various sorts of solids.”

HOMA shall be presenting the brand new Alligator chopper pump sequence for the first time at IFAT 2022 in Munich. This and different innovations, corresponding to the maintenance slide with sliding motor mount, might be explained and demonstrated by the HOMA sales team in Hall B1 at Stand 429/528.

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