Deep Submerged Self-Priming Aeration Machine Technical Description
Jiangsu Du'an Environmental ProtectionThrough continuous introductionFrontierTechnology, by vigorously promoting technological innovation, has successfully developed a new type of deep-water self-priming submersible jet aeration machine based on the generation of submersible jet aeration machines it has developed. NanjingDuwan Water TreatmentThrough systematic research, we have developed a new design and testing method, elevating the overall performance of our product to the forefront of similar international products, allowing direct competition in the market. The new type of deep-sea self-priming submersible jet aeration machine boasts a compact structure, simple operation and maintenance, and easy installation. While maintaining its low-cost characteristics, its performance has been significantly enhanced. Without the need for compressed air, the submersible aeration depth reaches up to 10 meters, with finer bubbles, increasing the contact area between air and aeration medium, effectively enhancing the oxygen transfer rate. The配套 non-clogging submersible electric pump utilizes the sealing technology of the submersible sewage pump used in the Yangtze River Three Gorges, greatly improving the reliability of the submersible jet aeration machine.
Deep Submersible Self-Priming Jet Aerator
2. Model: QSB1.5
3. Quantity: 1 unit
4. Key Technical Parameters
Model | QSB1.5 |
PowerkW） | 1.5 |
Rated CurrentA） | 3.7 |
Rated VoltageV） | 380 |
RPMr/min） | 2900 |
FrequencyHz） | 50 |
Insulation Grade | F |
Intake Volume(m3/h) | 22 |
Enhanced Oxygenation CapacitykgO2/h） | 1.26 |
Intake Manifold Bore(mm) | 32 |
5. Features and Applications
The Deep-Submerged Self-Priming Submersible Jet Aerator simultaneously stirs and aerates water bodies, producing fine bubbles for high oxygen transfer rates while offering the advantage of wheel-free clogging. Its strong unidirectional liquid flow creates an effective convection cycle, and the motor load varies minimally with water level changes, making it particularly suitable for pools with significant water level fluctuations. Submerged aeration depth without the need for compressed air.NormalAchievable10 meters. Cost-effective, with simple and convenient installation and maintenance. Main application ranges include:
（1) Deep Water Aeration
（2) Aeration and mixing of the biochemical pool.
（3) Sludge aeration and mixing
（4) High-concentration organic wastewater treatment process.
6. Structure and Working Principle
Deep Water Self-Priming Submersible Jet AeratorWQ Submersible Sewage Pump, Venturi Tube, Diffuser, Intake Pipe, and Flow Control ValveSoundThe equipment consists of a submersible pump, nozzle, and air intake tube. The working principle is as follows: the water flow produced by the submersible pump passes through the nozzle to form a high-speed jet. This creates a vacuum around the nozzle, drawing air through the intake tube. The resulting mixture of water and air is喷射 out at high speed, carrying many bubbles. This water flow whirls and stirs in areas of larger surface and depth, completing the aeration process.
7．Material
The exhaust pump base and pump housing are cast from HT250 cast iron, offering certain corrosion resistance and the ability to withstand impact loads.
The aeration pump motor shaft is manufactured using corrosion-resistant 2Cr13 material, and stress concentration measures have been taken in the structural design.
Mechanical seals for aeration pumps can be selectively adopted in accordance with the pumped medium, such as silicon carbide.OrSilicon Carbide, Tungsten Carbide/Wolfram carbide, silicon carbide/Wolfram carbide material, the design service life of mechanical seals exceeds 12,000 hours.
The aeration pump's bearings are equipped with imported NSK bearings, offering a cumulative design lifespan exceeding 40,000 hours.
The static seal of the submersible jet aerator uses a Nitrile-70 O-ring.
All fasteners of the Submerged Jet Aerator are made of stainless steel.
The air intake pipe of the 7 Submerged Jet Aerator is made of galvanized material.
8 Nozzles are made of cast iron.
Submersible aeration pumps powered by three-phase electricity should have their rotation direction checked during the initial start-up and after each reinstallation. Incorrect rotation can reduce efficiency and damage the pump.
The inspection method is as follows: Before the submersible aeration machine is finally installed, look at the suction port from the bottom up. The impeller rotates in a counterclockwise direction. If multiple submersible aeration machines are connected to one controller, each machine must be inspected individually. If the rotation direction is incorrect, you can change the direction of rotation by swapping the positions of any two of the three-phase wires on the controller.
Jet Submerged Aeration Machine
8. Installation
The installation methods of the deep water self-priming submersible jet aerator include self-coupled and mobile installations. The self-coupled installation involves securing the aeration unit and base to the bottom of the pool, installing the matching support blocks at the pool's top, and connecting them using guides. The electric pump is connected to a specific bracket, sliding down the guides to reach the base outlet position, where it automatically couples and seals due to its own weight. This self-coupled installation allows for easy and quick installation and maintenance of the electric pump without personnel entering the water pit, ensuring convenience, speed, and safety! The mobile installation method involves placing the deep water self-priming submersible jet aerator at the pool bottom, relying on its own weight for positioning. It offers flexible installation location changes and lower costs.
Submersible Jet Aeration Pumps with Electric Control System
Control box suitable for three-phase power supplyThe 380V, 50HZ, automatic control system for the start and stop of the submersible jet aeration machine can be interfaced with a PLC to regulate the operation of the submersible jet aeration pump. It also features overcurrent, short-circuit, and phase loss protection functions.
Terms of Use:1. Altitude not exceeding 2,000 meters; 2. Surrounding air temperature between -5°C and 40°C; 3. Relative humidity not exceeding 90% (below 25°C); 4. No severe vibrations, shocks, or inclinations exceeding 5 degrees vertically; 5. No explosive hazards, and no medium containing gases capable of corroding metals or damaging insulation, nor conductive dust; 6. No exposure to rain, snow, or steam.
Structure and Principle: The control box is composed of circuit breakers, AC contactors, and thermal relays.
There isManual and automatic operation modes, with running and overload signals remotely transmitted to the PLC.
