Low noise multi-stage pump

Low noise multi-stage pumpProduct Features

1. The DFSL series water-cooled motor multi-stage pump has the characteristics of high efficiency, energy saving, low vibration, low noise, long service life, compact structure, small volume, and beautiful appearance;

2. The pump adopts an efficient hydraulic model and CFD optimization design. The flow components are all molded with resin sand, ensuring accurate casting shape and channel size, smooth surface, and improving the hydraulic efficiency of the pump, as well as the cavitation performance of the pump;

3. The motor adopts an ultra efficient three-phase asynchronous motor electromagnetic model and eliminates the wind friction loss of the motor fan, which is 1% to 3% higher than the efficiency of ordinary YE3.

4. Using finite element analysis method for strength calculation makes the pump operation more reliable and durable, extending the service life of the pump;

5. The integrated design of the pump and motor adopts an efficient water-cooled motor structure scheme to ensure the high efficiency and energy saving of the pump.

6. The outer surface of the motor is decorated with polished stainless steel pipes, and the junction box is arranged on the top of the motor. The motor cooling adopts an external circulation form, with a small volume and a building block structure. The number of parts is small, greatly achieving the miniaturization of the equipment;

7. The motor adopts self conveying medium circulation liquid cooling instead of fan cooling, which ensures smooth operation and low vibration noise.

The product maximizes pump efficiency, expands the high-efficiency zone of the pump, and reduces pump noise through the use of ternary design theory, model optimization design, and pump dynamic characteristic analysis methods.

Low noise multi-stage pumpThe impeller adopts stainless steel stamping laser welding technology, and the main component castings are molded with resin sand, with a smooth surface. The parts are processed using CNC machining technology, and 3D inspection technology is used to ensure the conformity of form and position tolerances. Module theory and virtual technology are applied to improve the reliability of the product, and the product is verified through a testing system.

Selecting an ultra efficient three-phase asynchronous motor electromagnetic model and eliminating wind and friction losses of the motor fan, the efficiency index meets the energy efficiency standards of GB18613-2012 "Energy Efficiency Limits and Grades for Small and Medium sized Three phase Asynchronous Motors", which is 1% to 3% higher than the efficiency of ordinary YE3.

The motor rotor is separately subjected to G1.0 level dynamic balancing, and all rotating parts of the pump, including the impeller and shaft sleeve, are subjected to G1.0 level dynamic balancing as a whole to further reduce vibration and noise and ensure smooth operation.

After adopting a water-cooled motor, one of the main noise sources of the water pump, the motor cooling fan, was eliminated. At the same time, all rotating parts such as the rotor and bearings were filled with liquid around the periphery, and the sound generated was further reduced by the liquid barrier.

The electric pump components adopt the "cathodic electrophoretic coating" process, which greatly improves the anti-corrosion ability of the water pump components and effectively extends the service life of the water pump.