Introduction to selection of aerators for river treatment:

River treatment aeratorstructure

River treatment aeratorIt is a type of environmental protection equipment that is widely used in many situations, especially in sewage treatment plants and some slaughterhouse 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. Today, we will introduce to you the main structural components of the submersible aerators currently produced by our factory, hoping to be helpful for friends who need to purchase environmentally friendly equipment.

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

Installation of river centrifugal float aeratorgiveThe QXB submersible centrifugal aerator has the same main engine structure, performance parameters, and external dimensions, except for the addition of a floating ring. The selection is determined according to the QXB series (see our company's sample).

Overview of installation products for river centrifugal float aerators

Installation of river centrifugal float aeratorIt is the originalThe installation form of QXB submersible aerator (with submersible motor), which is positioned at the bottom of the pool by its own weight, has been changed to the installation form of using dual inlet pipes and suspended in the water by a floating ring. During the installation and maintenance of the QXB aerator, if there is water in the sewage tank and personnel cannot operate it, a crane needs to be inserted into the tank for lifting or transporting after draining the water. This installation form must have a hard foundation or platform as support. The improved design of the QFB aerator not only works in the aeration tank, but also in soft foundation environments such as oxidation ponds, fish ponds, landscape lakes, sewage channels, and rivers. Therefore, the improved design of the QFB makes installation more convenient, time-saving, and labor-saving, and expands the scope of use of submersible aeration.

On the basis of the original QXB, the river treatment aerator has changed from single-sided intake to double-sided or central intake, and a floating ring (made of stainless steel or fiberglass) is installed on the upper part of the intake pipe. The floating ring, intake pipe, and aerator are connected as a whole. As shown in the figure, the floating ring relies on the buoyancy of water to suspend the aerator in the water. The floating ring is pulled by three steel wire ropes, and the other end of the steel wire rope is fixed to the edge of the pool or fixed with three anchor points in the pond. During installation, place the aerator and floating ring into the water as a whole, and drag them to the designated area with steel wire ropes. Then fix the other end of the three steel wire ropes in three different directions at the edge of the pond. For ponds with larger water surfaces, three anchor points can be set up for positioning. During maintenance, simply untie the steel wire rope fixed at the edge of the pool, pull the equipment back to the edge of the pool and lift it out of the water.

5. Technical features
Price of river treatment aeratorExcept for the addition of a floating ring, its host structure, performance parameters, and external dimensions are completely the same. Selection byQXB series confirmed

1. Characteristics

a) The structure is compact, with a small footprint and easy installation.

b) Except for the intake port, the rest of the parts are submerged in water with low noise.

c) Inhale a lot of air, produce numerous and fine bubbles, and have a high dissolved oxygen rate.

d) No need to provide a gas source, eliminating the need for a blower and reducing project investment.

e) The impeller adopts a non blocking type, ensuring safe and reliable operation.

2. Construction and Engineering Process

The submersible aerator consists of a submersible sewage pump, a mixing chamber, a base, an intake pipe, and a muffler.

The upper end of the intake pipe is the air intake port, located above the water surface, and the lower end is connected to the mixing chamber. After the power is turned on, due to the rotation of the impeller, high-speed water flows out from the impeller outlet, forming negative pressure through the mixing chamber. Therefore, air is sucked in and mixed with sewage, and the mixed liquid flows out from the outlet, completing the oxygenation of the sewage.

six 、Performance of river management float aeratorTransportation and usage precautions

1. It is absolutely not allowed to use the cable of the aerator to lift or suspend the aerator. When transporting or hanging the aerator, a chain hook with a fishing hook can be used on the handle or the upper cover lifting ring.

2. The fruit aerator is still in use or immersed in water, and can continue to be used at temperatures below 0 ° C.

3. The aerator uses grease or lubricating oil, which may leak out due to seal wear. At this moment. Please send the aerator to our company's maintenance department or authorized repair point as soon as possible to replace the seal, in order to avoid burning out the motor.

4. When the power is cut off, the aerator must not be moved and people must not enter the water.

5. After installation, the submersible aerator cannot be immersed in water for a long time. It is recommended to run it for at least 4 hours every half month to check its function and adaptability, or to lift it up and store it in a dry place for backup.

6. The submersible aerator cannot be placed outside the sewage inlet. When the chassis is placed on mud or floating sand, the submersible aerator sinks due to vibration. In this case, it is recommended to suspend the aerator or place it on a larger base plate.

7. The submersible aerator must ensure safety.

River management float aeratorinstructions

Before starting the submersible aerator, a qualified electrician should inspect the system to ensure that the following electrical protection measures are taken.

1. Before operating the submersible aerator, a 0-500V megohmmeter should be used to check the insulation resistance of the motor stator winding, which should not be lower than 1 megohm.

2. The power supply voltage must be within the range of 5% of the rated voltage indicated on the nameplate, and the increase in power supply voltage is not allowed to exceed 10% of the rated voltage. If the power supply is far away from the place where the submersible aerator is used, the cross-sectional area of the cable should be increased, and the joints should be minimized as much as possible, otherwise the voltage will drop too much. The joints should be sealed and waterproof.

3. In a four core cable, the one with a grounding symbol is the ground wire, usually a yellow green wire. To ensure safety, the ground wire must be firmly connected and 50mm longer than other wires

4. Check the direction of rotation of the impeller.

The submersible aerator using three-phase power supply should be checked for rotation direction after initial start-up or each reinstallation. Incorrect rotation direction can reduce efficiency and damage the water pump.

The inspection method is: Before final installation of the submersible aerator, look up at the suction port of the submersible aerator from the bottom and rotate the impeller counterclockwise. If several submersible aerators are connected to a controller, each aerator must be inspected separately. If the rotation direction is incorrect, the position of any two of the three-phase wires on the controller can be exchanged to change the rotation direction