Sludge Internal Recirculation Pump, Recirculation Pump, QJB-W10 Submersible Recirculation Pump Installation Dimensions
Material: SS304 Stainless Steel
Wall Penetration Pipe, Hinge Door, Guide Rod, and Hoisting Mechanism Installation and Usage
Duwan Environmental QJB-W10 Internal Recirculation Pump - Performance and Structure
1. Performance
The wall penetration pump operates smoothly without any jamming, stalling, or vibration.
(2) The wall penetration pump undergoes a sealed air pressure test with a test pressure of 0.2 MPa.
(3) The wall penetration pump is equipped with a double mechanical seal and lip seal structure, ensuring reliable operation for up to 10,000 hours without the need for replacement.
(4) The wall-penetrating pump cable is made of YZW type rubber sheath flexible cable or an equivalent cable, with the cable sealing head treated with special vulcanization to prevent water seepage into the motor due to cable sheath damage.
(5) The wall-mounted pump oil chamber is equipped with a sealing leakage protection device.
(6) The two-color wire (yellow/green) in the cable leading from the wall-mounted pump is designated as the ground wire, ensuring a reliable connection. The ground marking is clear and not easily worn off during use.
(7) The wall penetrating pump motor rotor undergoes dynamic balance testing with a precision of G6.3.
(8) The stator winding of the wall penetrating pump motor is equipped with a thermal protection switch.
（9）During the operation of the wall penetrating pump, deviations of the power voltage and frequency from the rated values and their impact on motor performanceThe rise in temperature aligns with the effect. GB755 Regulations dictate that the motor's electrical performance meets JB/T8092、JB/Z346、
Regulations in GB5013.4.
(10) The wall penetrating pump can freely rise and fall on the guide bracket, quickly coupling with pre-buried return pipes for smooth and reliable operation.
Structure
Cable entry seal
The cable entry seal is a complete component with a fixed plate. The cable entry is strictly ensured for waterproof and submersion sealing.
(2) Electric Motor
Three-phase squirrel-cage induction motor with housing design, filled with air inside the housing, for direct starting. Motor can continuously stir 40Medium at ℃, per hour comparisonLarge startup times 15 Next, each time it startsThe intervals between them are evenly spaced.
The motor design allows for a voltage variation of ±5Provide its rated output within % range.Under normal conditions, as long as the motor is not operating at full load continuously, ±10% rated voltage errorThe difference is acceptable. The motor allows for interphase voltage unbalance of 2Within %. The stator is through the surroundingLiquid cooling. Cable diameter greater than 1. 1.5mm2 connects to the thermosensitive switch and optional protective sensor; cable sheath resists sewage corrosion.
(3) Mechanical Seals
Submersible recirculating pump equipped with a double mechanical seal system. Seals operate in the oil chamber, using liquid power to spray oil onto the sealing surface at a constant rate for lubrication. The external primary seal component is located between the agitated liquid and the oil chamber, containing a stationary and positively driven rotating tungsten carbide ring. The internal secondary seal is situated between the oil chamber and the motor housing, featuring a stationary tungsten carbide ring and a positively driven rotating tungsten carbide ring. Only the external sealing surface comes into contact with the agitated medium. Each seal interface is spring-loaded.The system is securely fastened. Sealing does not require maintenance, adjustment, or rotation direction. The oil cavity is filled with paraffin-type white oil, which contains no aromatic hydrocarbons.
(4) Bearings
The impeller shaft and motor shaft form an integrated unit, with the motor internally equipped with two full-closed deep groove ball bearings. MainThe required bearing is a single-row, spherical roller bearing to withstand axial loads, with a service life of not less than 10,000 hours.
(5) Oil chamber
Oil serves as a lubricant and coolant for the seals and provides an additional barrier against渗入的液体. The pressure accumulated in the oil chamber is mitigated through a reduction in internal volume.
(6) Impeller
The impeller is three-bladed, with wide blades, thin sides, and a smooth surface. It features a swept-back design and self-cleaning capabilities, ensuring high efficiency and blockage-free operation for the submersible return pump.
(7) Protection
All motors have each phase winding connected to a thermal switch, which are connected in series. The thermal switches are in
At 125℃ the motor stops rotating and alarms.
2)The motor room is equipped with a humidity sensor, providing an alarm monitor with over-limit protection for motor temperature and humidity for each sludge recycle pump. Upon exceeding temperature and humidity limits, the control circuit immediately stops the sludge...Recirculation pump is stopped to protect the motor, and an alarm monitor is installed on the electrical control cabinet.
(8) Impeller shaft
The impeller shaft and the motor shaft are one and the same, ensuring smooth and safe operation of the motor.
Cooling System
The motor is fully cooled by the surrounding liquid stirred.
Components Material for Sludge Internal Recirculation Pump
Motor housing HT250 Corrosion-resistant
Impeller shaft 2Crl3
Impeller 304No content provided.RustSteel
ScrewsScrewBoltsNutPending connectionEnclosedPiece(s)304Stainless Steel
Guide RodsPlease provide the Chinese content you would like translated into American English.Rack 304 stainless steelRustSteel
O Formed Ring Nitrile rubber
Mechanical Seal Silicon Carbide - Tungsten Carbide
Duwan Environmental Protection Submersible Recirculation Pump, Inner Recirculation Pump Auxiliary Equipment Control Cabinet, and Local Operation Button Box (one control, one box).
304Leaving space inside the stainless steel field control cabinet.PLCThe terminal blocks connected to the system are clearly labeled, and complete control drawings are provided for implementation.PLCAutomatic control.
Variable Frequency Drive Configuration Instructions
Inverter employsABB ACS880SchneiderATV630SiemensMM440Core components use imported brands. The inverter needs to be compatible withPLCConnection control.
One-year warranty
Provide on-site guidance for installation and debugging
