Large flow micro head sludge internal reflux pump

1Large flow micro head sludge internal reflux pumpstructure

The QJB reflux pump is mainly composed of a main unit, an installation system, and electrical control equipment. The host is mainly composed of impellers, submersible motors, guide vanes, guide pulleys, etc. The impeller is directly mounted on the submersible motor shaft, while the submersible motor is fixed inside the guide cylinder.

The installation system of the reflux pump mainly consists of a chain block, a lifting column, a hanger seat, a lifting ring chain, a lifting hook, a guide rod, a through wall pipe, a flap door, etc.

IILarge flow micro head sludge internal reflux pumpprinciple

Principle: Used for pumping sewage/circulating water at a constant speed in the system (such as between regulating tanks, nitrification tanks, denitrification tanks), used for pumping raw water, treated water, and cooling water.

3、 Purpose and Scope of Application

The QJB-W reflux pump is a device used for mixed liquid reflux, denitrification, and denitrification in sewage treatment plants. It can also be used in low head, high flow areas such as surface drainage, irrigation, and wastewater treatment processes that require recirculation.

The equipment can operate continuously and normally under the following conditions:

1. The temperature of the medium shall not exceed 40 ℃;

2. The pH value of the medium is between 5 and 9;

3. Long term diving operation, with a diving depth generally not exceeding 10m.

Note:The reflux pump must be submerged in water and cannot operate in environments that are flammable, explosive, or highly corrosive!

4、 Characteristics

1. Compact structure, small size, light weight, easy operation and maintenance, convenient and fast installation, and long service life.

2. The swept back blades have self-cleaning function to prevent debris from entangling and clogging.

3. Specially designed for low head and high flow rate, the impeller is optimized by CFD for high efficiency.

4. The cable sealing design of * eliminates the hidden danger of cable leakage.

5. The motor winding is insulated to Class F with a protection level of IP68. It uses imported bearings with one-time lubrication and maintenance free function, which have oil chamber leakage detection and motor winding overheating protection functions, making the motor work more efficiently.

6. Two independent mechanical seals, the friction material of the mechanical seal is corrosion-resistant tungsten carbide or silicon carbide, and all fasteners are made of stainless steel material.