1400QZ-100 submersible axial flow electric pump is YQGN990 series submersible motor and 1400ZLB type vertical axial flow pump pump section matching into the machine and pump as a coaxial drive submersible electric pump. The whole pump adopts the company's professional self-developed electromagnetic computer optimization design and calculation program：
Fully waterproof insulation technology for electric motors/Submersible motor temperature rise technology/Leak-proofing technology for motor seals and cable seals/First mechanical seal decompression and three-layer mechanical seal structure/Dynamic and static insulation (leakage current) online monitoring, intelligent protection and control technology, etc.
900QH-50 submersible mixed flow pump is YQGN740 series submersible motor and 900HLB type vertical mixed flow pump pump section supporting the machine and pump into an integrated coaxial drive submersible electric pump. It can be submerged in the water for a long time, and has a series of incomparable advantages of traditional units:
Technical Advantages：
1.1 As the motor and pump form a single unit, there is no need to carry out the time-consuming and labor-consuming motor-transmission mechanism-pump-to-axis assembly process on site;
1.2. Due to the submerged operation, it can greatly simplify the civil engineering of the pumping station, reduce the installation area and save 30%-40% of the project cost;
1.3. electric pump submersible operation, above the surface of the water is almost no running noise, electric pump is water cooling, does not produce environmental high temperature, the duty officer on duty in the control room, the working environment is comfortable;
1.4 The electric pump has no oil, water, gas auxiliary equipment, easy to run;
1.5. Submersible electric pump adopts three mechanical seals to prevent the motor and the oil chamber from water ingress, F-class insulation, protection grade IP68 (IEC), the pump section adopts the national unified design of the excellent hydraulic model, the performance and reliability is higher than that of traditional pumps, which is convenient for the user to select the type.
QZ, QH structural features：
1, smooth geometric profile, excellent hydraulic modeling to ensure accurate hydraulic performance.
2、Multiple tandem mechanical seals provide reliable and long-lasting sealing performance and maximum anti-wear and impact resistance.
3、High quality disposable lubricated bearings for worry-free operation.
4、The rotor shaft is made of high quality stainless steel material 20Cr13, and the rotor is dynamically balanced and tested.
5、Squirrel cage induction motor, stator insulation class F (155°C) and equipped with overheating overload protection, built-in leakage, bearing temperature rise protection.
6、The junction box is completely separated and sealed from the surrounding liquid with independent sealing components, effectively eliminating leakage due to cable breakage.
7、Unique cable sealing design eliminates the hidden danger of cable leakage.
Product usage：
QZ(H) submersible axial (mixed) flow pumps are suitable for water conservancy flood control and drainage, agricultural irrigation and drainage, municipal water supply and drainage, sewage treatment, shipyard water lifting, power station water supply and drainage, regional water diversion and transfer, ecological environment water system management and other fields. Axial flow submersible electric pumps are suitable for low head, large flow occasions, mixed flow submersible electric pumps with high efficiency and good cavitation performance, suitable for water level becomes larger and higher head requirements, the conveying medium is raw water or mildly contaminated water, and the temperature of its conveyed liquid can be up to 70℃.
