Oxidation ditch impeller propeller

Oxidation ditch impeller propellerThe submersible thruster has a compact structure, small volume, and light weight. The operation and maintenance are simple, the installation is convenient and fast, and the service life is long. The blades have self-cleaning function, which can prevent debris from winding and blocking. When used in conjunction with the aeration system, it can greatly reduce energy consumption, significantly increase oxygen filling, and effectively prevent sedimentation. The motor winding is F-class insulation with a protection level of IP68. It uses maintenance free imported bearings with oil chamber leakage detection and motor winding overheating protection function, making the motor work safer and more reliable. The friction material of the mechanical seal is corrosion-resistant tungsten carbide, and all fasteners are made of stainless steel, suitable for various water treatment processes and industrial processes that require maintaining a uniform mixing reaction of solid and liquid phases or solid, liquid, and gas three-phase media.

Oxidation ditch impeller propellerComposition and structure of oxidation pool submersible thruster

1. Junction box
The junction box is sealed and isolated from the surrounding liquid and motor parts; Cooling: The motor stator is cooled by the surrounding liquid.
2. Gear
Adopting planetary gear transmission to reduce impeller speed.
3. Low-speed thruster impeller
The blades are double banana shaped and cast with aluminum alloy, effectively preventing the problem of blade fracture; The inlet edge of the blade bends backwards and has automatic cleaning performance; Tighten it onto the shaft with a locking nut, making it easy to disassemble and replace during lifting and maintenance.
4. Low speed thruster motor
Adopting a fully submerged squirrel cage induction motor, the insulation level of the submersible motor winding is F grade, and the protection level is IP68. The maximum speed per minute should not exceed 1500 revolutions per minute. The motor can operate continuously, starting at least 12 times per hour without causing any harmful effects.
5. Low speed thruster oil chamber
Lubricate and cool the sealing device, bearing seat and gearbox between the motor and liquid. The oil chamber plays a role in shock absorption and noise reduction. If necessary, an airbag device can be embedded to reduce and lower the pressure rise in the oil chamber.
6. Low speed impeller bearing
The motor shaft is supported by two bearings, which are double row ball bearings; And the main bearing is a double row spherical roller bearing; The impeller shaft is supported by a double row angular contact ball bearing and a cylindrical roller bearing;
The operating life of the agitator bearings is long.
7. Low speed impeller shaft seal
The mixer consists of two mechanical seals and one lip seal. Sealing device material: tungsten carbide - tungsten carbide.
8. Low speed impeller mechanical seal
Each wheel axle is equipped with a series connected double-layer independent rotating shaft mechanical seal system, and the sealing device operates inside a fuel tank. Mechanical seal design has a long service life.
9. Low speed thruster monitoring system
There are two thermal switches installed in the stator winding, which operate at 125 ℃. Under normal circumstances, the temperature of the motor does not exceed the specified temperature.
10. Control system
The control box can achieve self-protection of equipment, with overheat, overcurrent, and leakage protection functions, and can reserve PLC interfaces.