Construction site in Caofeidian, Hebei

QNP75KW 潜水泥渣泵在国家科学发展示范区河北曹妃甸施工现场

QNP series submersible sludge pump

Performance and characteristics

A new generation of energy-saving and wear-resistant submersible sludge pumps with world-leading level developed and manufactured using two-phase flow theory.

Scope of use

It meets the needs of sand pumping and land reclamation in coastal areas, sand suction and silt removal in water conservancy dredging projects, and extraction of high-concentration fluid media containing solid particles in modern power, metallurgy, mining, coal, construction and other industries.

Technical parameters

Flow rate Q: 50-400m3/h

Head H: 26-50m

Power p: 15-132kw

Speed: 980-1450r/min

Diameter: 100-150mm

Voltage: 380v

WQR/QG type cutting type sewage and wastewater submersible hot water electric pump

Product introduction and application range

WQR/QG type sewage and wastewater submersible hot water electric pump is successfully developed on the basis of digesting and absorbing advanced technologies of similar foreign products. It can work continuously in high temperature 100℃ sewage. It has the advantages of high temperature resistance, anti-blocking, anti-winding, high efficiency, small footprint, flexible pipeline layout, stable operation, and is equipped with an electric pump automatic protection control system.

This product is mainly used for steel mills and power plants for hot water treatment. It can also be used in sewage treatment plants, municipal engineering, hospitals, buildings, hotels, restaurants, subways and other fields. In the occasions of discharging sewage, sludge, domestic sewage with solid particles and various long-fiber garbage, it has the performance of passing and cutting. The product has a discharge water diameter of 100 mm, a flow rate of 200 m3/h, a head of 25 meters, a power of 15 kilowatts, a solid particle diameter of 35 mm, and a machine weight of 295 kg.

Structural features and improvements

Cutting type non-clogging impeller

The impeller adopts a cutting semi-open double-blade structure, which has anti-clogging and anti-winding characteristics, eliminating the risk of blockage when pumping sewage containing particles and fibers.

The pump casing liner is provided with a release groove, which forms a sharp ligament after processing. The combination of the impeller and the pump casing liner can cut off the fibrous material to ensure that there is no winding or blockage during operation. In order to give full play to the performance of the release groove, the design is improved and the release groove is appropriately extended to the middle position of the impeller inlet, so that the impeller can capture the fibrous material at any time during the rotation process, guide it to the edge of the impeller, cut it off and throw it out. In the event of partial blockage during the operation of the pump, resulting in efficiency loss, it is convenient and fast to remove the debris without disassembling the water pump, maintaining a high efficiency. The cutting gap can be adjusted manually, which is simple, fast, convenient and reliable. The impeller designed with no overload theory can ensure that the electric pump is used safely within the full range of lift without the phenomenon of motor overload or motor burning due to low lift.

The built-in closed system cools the motor in time to ensure safe operation of the electric pump under low water level conditions.

WQ series sewage and waste submersible electric pump

Performance and characteristics

The seal is made of hard alloy wear-resistant material. Unique single-blade or double-blade design, anti-blocking, strong passing capacity, full head range use, cable sealing joint adopts new glue injection process to eliminate water ingress hazards.

Scope of use

Applicable to municipal engineering mines, iron ore processing plants, paper mills, urban sewage treatment, civil air defense system drainage, sewage, domestic sewage, etc.

Technical parameters

Flow Q: 5-100m3/h

Head H: 7-45m

Power p: 0.37-7.5kw

Speed: 2860r/min

Diameter: 25-100mm

Voltage: 380v