Centrifugal aerator price QXB2.2 QXB3.0 QXB4.0 QXB 5.5 submersible centrifugal aerator

Submersible centrifugal aerator is one of the environmental protection equipment, currently widely used in many occasions, especially in sewage treatment plants and some slaughter wastewater treatment plants. Due to the fact that this device is more capable of causing damage to ordinary items than regular equipment, many difficult to treat wastewater treatment plants adopt this environmentally friendly equipment. However, there are currently many models of this product, and new types of submersible aerators are developed and produced every once in a while. What are the main structural components of the submersible aerators produced by Jiangsu Du'an Environmental Protection

1. Main reduction mechanism: composed of a main variable frequency speed regulating motor, an incremental encoder, and a main reducer. The motor starts and is reduced by the main reducer, increasing the torque. By adjusting the speed of the variable frequency speed control motor with an incremental encoder, various accurate speed outputs can be achieved to meet the process requirements of the aerator. The reducer gears are made of low-carbon high-strength alloy materials and processed through processes such as carburizing, quenching, and grinding. Significantly improve the load-bearing capacity of the gearbox.

2. Lifting mechanism: composed of lifting reducer, absolute value encoder, trapezoidal screw, KK alloy nut, bearing seat, bearing sleeve, connection method, and several bearings. By using a lifting mechanism with an absolute value encoder, more accurate lifting stroke and speed can be achieved.

3. Output mechanism: The output mechanism consists of an internal spline shaft (fixedly connected to the output gear of the main reducer), an external spline shaft (fixedly connected to the output gear of the main reducer), an external spline shaft, a coupling, a transmission shaft, etc. The internal and external spline shafts are treated with high-strength medium carbon alloy quenching and tempering. The axial direction between the internal and external spline shafts is a sliding connection, and the external spline shaft can achieve up and down lifting while transmitting torque.

The above is an introduction to the varieties of inverted umbrella submersible aerators produced by our factory. You can take a look and see how they are different from other types of aerators. You can also check the specific product parameters in the product introduction section of our website. In addition, product pictures and application scenario pictures are also attached, which are written clearly. If you want to come to the site to inspect the effectiveness of our environmental protection equipment in the later stage, you can contact our customer service personnel. They will take you to specific case sites to see how customers react after using our environmental protection equipment. We believe that you will not be disappointed.

After each submersible centrifugal aerator is assembled, performance testing is conducted to ensure that the overall performance of the unit meets relevant standards and that the first fault free operation time is not less than8000 hours, the designed service life of the unit is not less than 15 years.

Reasons for the decrease in efficiency of centrifugal aerators:

1. Due to the erosion of water flow, the inner wall of the pump channel and the water surface of the impeller become rough and uneven, and the friction coefficient of the flow channel inside the pump increases. In addition, the flow velocity of water inside the pump is very high, resulting in an increase in head loss. Hydraulic efficiency decreases.

2. Due to the addition of medication or water quality before the pump, severe scaling or corrosion may occur inside the pump casing. Severe accumulation of scale inside the pump casing can increase the wall thickness by about 2ram, and the formation of scale nodules on the inner wall of the water pump can reduce the volume of the pump body, decrease the pumping volume, and make the flow channel rough, resulting in increased head loss. Both passenger flow efficiency and hydraulic efficiency have decreased.

3. Due to casting defects, cavitation, abrasion, corrosion, and chemical erosion caused by the water pump processing technology, voids or cracks are formed in the pump flow channel, and energy loss is caused by vortices generated during water flow. Hydraulic efficiency decreases.

4. Cavitation on on the surface of the impeller. Due to the negative pressure generated during the operation of the blade's water surface, when the pressure Pk is reached, air pockets and honeycomb surfaces are formed, which cause cavitation of the pump blades under the action of electrochemical corrosion.

5. Volume loss and mechanical loss. Due to the prolonged use of the pump, mechanical wear leads to leakage and increased resistance, resulting in a decrease in volumetric efficiency and mechanical efficiency.

The reasons for the high noise of the water pump in the QXB submersible centrifugal aerator may include the following aspects:

(1) The impact of the rotary blade on the cylinder body, the residual volume of the water pump, and the sound of pressure oil in the exhaust dead gap;

(2) Impact of exhaust valve disc on valve seat and supporting components;

(3) Echo and bubble burst sound inside the box;

(4) Bearing noise;

(5) Noise caused by a large amount of gas and oil impacting the oil baffle;

(6) Others. Such as noise caused by transmission, fan noise of air-cooled water pumps, etc.

(7) Motor noise is a crucial factor.

QXB submersible centrifugal aerator leakage fault:

The operator added seawater to the cooling water radiator, causing damage to the internal water channels and external interfaces of the diesel engine. Therefore, when using a diesel engine, it is necessary to strictly follow the various regulations of the diesel engine.

The antifreeze added to the radiator by the operator has strong corrosiveness, causing damage to the water channel components of the diesel engine.

3. The wear or aging of the sealing ring causes the sealing surface to fail to seal, resulting in water leakage.

Troubleshooting of QXB submersible centrifugal aerator:

1. Disassemble the damaged components in the diesel engine, rinse the radiator and internal water channels of the engine with fresh water, and replace the damaged diesel engine components.

After assembly, adjustment, and testing, it was found that the diesel engine had returned to normal and the fault was eliminated.