Nanjing Sino German environmental protection equipment manufacturing Co., Ltd.
Address: Nanjing City Jinniu Lake District Liuhe Street Community Shuangqiao Xinguang Road No. 115
Contact: Xu Min (Manager) 18913960189
Fax: 025-57530868
Mailbox: njxm668@163.com
Q:1215040622 Q
QXB submersible centrifugal aeration machine
A centrifugal submersible aerator aeration tank for sewage treatment plant, aerated grit chamber, mixture of sewage sludge for oxygenating and mixing, and biochemical treatment or aquaculture oxygen of sewage.
The air flow was 10-32m3/h, aeration capacity 0.37-24kg2/h, motor power is 0.75-22kW.
Centrifugal aeration machine 11
Aeration machine diagram
Two, special point:
1) the structure is compact, the area is small, and the installation is convenient;
2) centrifugal submersible aerator except the inlet, the rest into the water to run, small noise;
3) submersible centrifugal aeration machine, the air is much more than the air bubbles, and the gas is fine, and the rate of dissolved gas is high;
4) submersible centrifugal aeration machine without the need to provide air source, eliminating the need for air blower, engineering investment;
5) submersible centrifugal aeration machine using the introduction of the German ABS submersible sewage pump technology, the impeller flow channel with no blocking, safe and reliable operation.
Three, principle
QXB type centrifugal submersible aerator adopts direct drive motor and impeller, centrifugal force generated by the rotation of the impeller is arranged around the water suction flow to form a low pressure area at the same time, the manufacturing of vacuum in the impeller inlet air inhaled, air and water in the mixing chamber is fully mixed to form gas water mixture evenly, discharged quickly in the centrifugal force under the action of.
Because the water jet is very strong, the effective flow of water cycle, so that the air is cut into a large number of tiny bubbles. Greatly increased the surface area, and because of the slow rise of air bubbles in the air in a large amount of oxygen dissolved in water, making the power efficiency is superior to other types of aeration machine.
Four, submersible centrifugal aeration machine characteristics
1, the unique design of the gas mixing chamber, the amount of air intake, mixing effect is good, high oxygen utilization rate;
2, the mixture of air and water can be discharged from the air mixing chamber at a special angle, which can make the water flow into the horizontal direction and then upward flow;
3, the body sink into the water to run, no noise. The water inlet pipe can be installed muffler, enhance the silencing effect.
Structure diagram of QXB type submersible centrifugal aeration machine:
Performance parameters of QXB type submersible centrifugal aeration machine:
Model
power
Rated current
Speed
Scope of service
Maximum dive depth
Air suction pipe diameter
Air intake
weight
QXB0.75-32
QXB1.5-32
QXB2.2-50
QXB03-50
QXB4-50
QXB5.5-65
QXB7.5-80
QXB11-80
Before starting the submersible aeration machine, the system shall be inspected by a qualified electrician to ensure that the following electrical protection measures are required.
Diving aeration machine before running, the application of 0 - 500V million euro to check the motor stator winding insulation resistance, the minimum shall not be less than 1.
The scope of supply voltage must be marked on the nameplate of the rated voltage of the power supply voltage of + 5%, higher value not allowed to exceed the rated voltage of 10%, if the power supply from the submerged aerator using local distance, the cross-sectional area of the cable should be bold, joints should be as less as possible, otherwise it will cause the voltage drop too much and, the joint should be sealed and waterproof.
Four core cable, with their ground, usually yellow line, to ensure safety, must be ground and grow out of prison than other 50mm.
Check the direction of rotation of the impeller
Using three - phase power to get the diving aeration machine, in the first start or re - Installation of submersible aeration machine after the re - installation should check the direction of rotation, moving direction is not correct, it will reduce efficiency, and damage to the pump.
Inspection methods, submersible aerator in the final before installation, should give high and simple start, looks up from the bottom water submersible aerator and impeller counterclockwise. If a few diving aeration machines are connected to a controller, each of the submerged aeration machines must be examined separately. If the rotation direction is not correct, the position of any two lines in the three-phase line can be switched, and the direction of rotation can be changed.
Nanjing Sino German environmental protection equipment manufacturing Co., Ltd.
Address: Nanjing City Jinniu Lake District Liuhe Street Community Shuangqiao Xinguang Road No. 115
Contact: Xu Min (Manager) 18913960189
Fax: 025-57530868
Mailbox: njxm668@163.com
Q:121504062 Q