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Introduce the basic functions of the product.
| 1.High-efficiency oxygenation in deep water：Inhales air through jet negative pressure, mixes with high-pressure water flow to form micron-level bubbles that can penetrate deep into the water body, greatly increasing dissolved oxygen content in deep water with high oxygen utilization rate. 2.Strong water mixing and agitating：High-speed jet drives surrounding water to form a strong circulation, breaks water stratification, promotes the exchange of upper and lower water layers, and makes water quality, water temperature and dissolved oxygen evenly distributed. 3.Enhanced sewage biochemical treatment：Improves the dissolved oxygen level of water, accelerates the activity of aerobic microorganisms, promotes the degradation of organic matter, ammonia nitrogen and other pollutants in sewage, and enhances the effect of biochemical treatment. 4.Stable submersible operation：Can work underwater for a long time without building machine rooms and pipelines, suitable for sewage tanks, lakes, rivers and other scenarios with different water depths, featuring easy installation and low operating noise. |
operational environment
| 1.Medium Environment Suitable for municipal sewage, industrial organic wastewater, river and lake water, and aquaculture water; resistant to slightly corrosive and weak acid-base media (pH value 6~9). Prohibited for use in strong acid, strong alkali, high-concentration organic solvents, as well as water containing sharp hard particles (particle size ＞5mm) and a large amount of fibrous impurities. 2.Temperature Environment Medium temperature 0℃~40℃, avoid water freezing or high temperature aging of seals; ambient temperature -10℃~55℃, install sun protection and anti-freezing cover for the electronic control system when installed outdoors. 3.Installation Environment Can be installed underwater in aeration tanks, oxidation ditches, deep lakes, aquaculture ponds, etc. Requires water depth ≥2m, no sludge deposition or large obstacles at the installation location; the water bottom must be flat or fixed with special mounting brackets to prevent equipment tilting or displacement by water flow; the distance between the equipment and the pool wall and bottom must be ≥1m to ensure jet mixing effect. 4.Electrical Environment Three-phase 380V/50Hz power supply (220V/60Hz can be customized for overseas markets); leakage protection and overload protection switches are required, and the electrical control cabinet must be placed in a dry and ventilated indoor space; the cable must be waterproof and wear-resistant, and the joints must be sealed to avoid water immersion and leakage. |
Product advantage
| 1.High-Efficiency Oxygen Dissolution in Deep Water, High Oxygen Utilization Rate Adopts jet negative pressure air suction technology to cut air into micron-level fine bubbles with strong penetration, which can directly reach the deep water body. The oxygen utilization rate is more than 30% higher than that of traditional aerators, easily solving the problem of hypoxia in deep water. 2.Strong Water Mixing, Breaking Stratification High-speed jet drives the surrounding water to form a strong circulation, realizing rapid exchange of upper and lower water layers, effectively breaking the stratification of water temperature and dissolved oxygen, avoiding black and odorous bottom water, and improving the overall water quality. 3.Submersible Design, Easy Installation and Maintenance Can directly operate underwater without building machine rooms and complex pipelines, saving civil engineering costs; equipped with special mounting brackets, it can be used immediately after hoisting. The later maintenance only needs to lift it out of the water for cleaning, with simple operation. 4.Low Noise, Energy Saving, Stable and Reliable Operation The underwater operation noise is below 55dB without noise pollution; equipped with a high-efficiency and energy-saving submersible motor, the energy consumption is 15%~20% lower than similar products, which can run continuously for 24 hours with low failure rate and long service life. 5.Corrosion Resistance and Durability, Adapting to Multi-Scenario Water Quality Wetted parts are made of stainless steel (304/316) or anti-corrosion coating technology, resistant to mild acid-base and salt spray corrosion, suitable for various complex water quality scenarios such as municipal sewage, industrial wastewater and aquaculture. 6.Multi-Functional Integration, Strong Function Integration Integrates three functions: aeration and oxygenation, water mixing and pollutant degradation. No need to configure additional mixing equipment, one device can meet the core needs of sewage biochemical treatment and water ecological restoration. |
technical parameter
| type | QSB submersible jet aerator |
| material | Cast iron, stainless steel 304/316 |
| Driving type | Direct drive of submersible motor |
| Installation type | Fixed bracket installation |
| Maximum caliber | DN150 |
| maximum flow | 200 m³/h |
| Maximum lift | 12 m |
| Maximum power | 22kW |
| the protection grades | IP68 |
| Insulation grade | Class f |
| Standard voltage | 380V/50Hz 、220V/60Hz、400V/50Hz、440V/60Hz |
product usage
1. Municipal sewage treatment
It is suitable for the aeration tank, anoxic tank, oxidation ditch and other process units of sewage treatment plant, especially for the aeration demand in deep water area, which can strengthen biochemical reaction, improve the degradation efficiency of pollutants such as organic matter and ammonia nitrogen, and stabilize the effluent quality.
2. Industrial organic wastewater treatment
High-concentration organic wastewater treatment tanks covering chemical industry, printing and dyeing industry, paper making industry, food processing industry, etc. can improve the dissolved oxygen in water, improve the biodegradability of wastewater and reduce the difficulty and cost of subsequent advanced treatment through powerful jet mixing.
3. Deep-water lakes and river regulation
It is used in deep water areas such as urban landscape lakes, reservoirs, black and smelly rivers, etc., to solve the problem of hypoxia in deep water bodies, break the stratification of water body temperature and dissolved oxygen, inhibit the excessive reproduction of aquatic plants such as cyanobacteria and duckweed, and repair the ecological environment of water bodies.
4. Deep water aquaculture
Adapted to deep-water fish ponds, shrimp ponds, sea cucumber culture ponds and other scenes, it can transport oxygen to the bottom of water, improve the living environment of cultured animals, reduce the death of floating heads, and improve the culture density and yield, especially suitable for high-density intensive culture mode.
5. Landfill leachate treatment
It is applied to the leachate regulating tank of landfill site to improve the dissolved oxygen content of leachate, promote the decomposition of macromolecular organic matter, and reduce the concentration of pollutants, which provides a good precondition for subsequent membrane separation, biochemical treatment and other processes.
6. Emergency water body repair
In response to sudden water pollution incidents (such as organic matter leakage, lack of oxygen and blackening of water bodies), it can be quickly deployed and put into use, supplementing oxygen to deep water bodies, slowing down the deterioration of water quality and controlling the spread of pollution. "
Product operation guide
check before installation
1. Check that the equipment model matches the working condition parameters (water depth and medium); Check the insulation of the motor, whether the cable is damaged and whether the sealed joint is intact.
2. Clean up the large sundries and sharp particles in the installation waters to avoid the blockage of the impeller and the jet port; Confirm that the mounting bracket/buoy is firm and free from deformation.
Second, the water installation and debugging
1. Fixed installation: fix the equipment on a special bracket to ensure that the jet port faces the center of the water body, and the distance from the pool wall and bottom is ≥ 1m; Slowly sink into the water to the rated depth (≥2m).
2. Buoy installation: adjust the balance weight of the buoy to ensure the level of the equipment and avoid the deviation of the jet direction caused by inclination; Cable should be fixed with clamps to prevent water from impacting and pulling.
3. Before starting for the first time, manually move the impeller to confirm that there is no sticking; Turn on the power supply and observe the effect of jet aeration (it is normal to produce continuous fine bubbles and form circular flow).
Third, the operation monitoring
1. Observe the bubble diffusion range, motor current and temperature regularly during operation, and keep them within the rated range; If there is a sudden drop in bubble volume and abnormal sound, stop the machine immediately for inspection.
2. No-load operation in waterless state is prohibited; It is forbidden to start and stop frequently, and the interval between two starts should be ≥3 minutes to prevent the motor from overheating and damage.
Fourth, downtime and maintenance
1. Normal shutdown: cut off the power supply, and lift the equipment off the water after the impeller stops completely; Clean the entanglement and sludge on the jet orifice, air inlet screen and impeller.
2. Long-term shutdown: drain the accumulated water in the motor cavity and check the wear of the mechanical seal; Dry the cable and store it. Place the equipment in a dry and ventilated place to avoid exposure to the sun and rain.
Safety precautions
1. It is forbidden to move equipment with electricity when working underwater; During maintenance, the power must be cut off and a warning sign "No Closing" should be hung to prevent electric shock.
2. After treating corrosive media, it is necessary to wash the surface of the equipment with clean water, and apply anticorrosive coating in time to prolong the service life. "
FREQUENTLY ASKED QUESTIONS
| Common Problems | Core Causes | Solutions |
| Weak jet aeration with few bubbles | Clogged air inlet filter, scaled jet nozzle, installation depthexceeding rated value | Clean impurities on air inlet filter, disassemble nozzle toremove scale, adjust to rated water depth of 2~5m |
| Abnormal noise or violent vibration during operation | Loose mounting bracket, impeller imbalance, wornbearing | Tighten bracket fixing bolts, correct impeller dynamicbalance, replace damaged submersible motor bearing |
| Seal leakage and water inflow into motor cavity | Aged mechanical seal, failed cable joint sealing, damagedO-ring | Replace mechanical seal and O-ring, redo cable jointwaterproofing, reinforce with sealant |
| Motor overload heating and frequent shutdown | Excessive impeller load caused by water impurities,unstable voltage, blocked heat dissipation channel | Clean large debris in water area, stabilize input voltage,rinse sludge in motor housing heat dissipation holes |
| Tilting of float-mounted equipment and jet directiondeviation | Uneven float inflation, unbalanced counterweight,excessive water flow impact | Adjust float inflation to balanced state, calibratecounterweight block position, reinstall in area with gentlewater flow |
Introduce the basic functions of the product.
| 1.High-efficiency oxygenation in deep water：Inhales air through jet negative pressure, mixes with high-pressure water flow to form micron-level bubbles that can penetrate deep into the water body, greatly increasing dissolved oxygen content in deep water with high oxygen utilization rate. 2.Strong water mixing and agitating：High-speed jet drives surrounding water to form a strong circulation, breaks water stratification, promotes the exchange of upper and lower water layers, and makes water quality, water temperature and dissolved oxygen evenly distributed. 3.Enhanced sewage biochemical treatment：Improves the dissolved oxygen level of water, accelerates the activity of aerobic microorganisms, promotes the degradation of organic matter, ammonia nitrogen and other pollutants in sewage, and enhances the effect of biochemical treatment. 4.Stable submersible operation：Can work underwater for a long time without building machine rooms and pipelines, suitable for sewage tanks, lakes, rivers and other scenarios with different water depths, featuring easy installation and low operating noise. |
operational environment
| 1.Medium Environment Suitable for municipal sewage, industrial organic wastewater, river and lake water, and aquaculture water; resistant to slightly corrosive and weak acid-base media (pH value 6~9). Prohibited for use in strong acid, strong alkali, high-concentration organic solvents, as well as water containing sharp hard particles (particle size ＞5mm) and a large amount of fibrous impurities. 2.Temperature Environment Medium temperature 0℃~40℃, avoid water freezing or high temperature aging of seals; ambient temperature -10℃~55℃, install sun protection and anti-freezing cover for the electronic control system when installed outdoors. 3.Installation Environment Can be installed underwater in aeration tanks, oxidation ditches, deep lakes, aquaculture ponds, etc. Requires water depth ≥2m, no sludge deposition or large obstacles at the installation location; the water bottom must be flat or fixed with special mounting brackets to prevent equipment tilting or displacement by water flow; the distance between the equipment and the pool wall and bottom must be ≥1m to ensure jet mixing effect. 4.Electrical Environment Three-phase 380V/50Hz power supply (220V/60Hz can be customized for overseas markets); leakage protection and overload protection switches are required, and the electrical control cabinet must be placed in a dry and ventilated indoor space; the cable must be waterproof and wear-resistant, and the joints must be sealed to avoid water immersion and leakage. |
Product advantage
| 1.High-Efficiency Oxygen Dissolution in Deep Water, High Oxygen Utilization Rate Adopts jet negative pressure air suction technology to cut air into micron-level fine bubbles with strong penetration, which can directly reach the deep water body. The oxygen utilization rate is more than 30% higher than that of traditional aerators, easily solving the problem of hypoxia in deep water. 2.Strong Water Mixing, Breaking Stratification High-speed jet drives the surrounding water to form a strong circulation, realizing rapid exchange of upper and lower water layers, effectively breaking the stratification of water temperature and dissolved oxygen, avoiding black and odorous bottom water, and improving the overall water quality. 3.Submersible Design, Easy Installation and Maintenance Can directly operate underwater without building machine rooms and complex pipelines, saving civil engineering costs; equipped with special mounting brackets, it can be used immediately after hoisting. The later maintenance only needs to lift it out of the water for cleaning, with simple operation. 4.Low Noise, Energy Saving, Stable and Reliable Operation The underwater operation noise is below 55dB without noise pollution; equipped with a high-efficiency and energy-saving submersible motor, the energy consumption is 15%~20% lower than similar products, which can run continuously for 24 hours with low failure rate and long service life. 5.Corrosion Resistance and Durability, Adapting to Multi-Scenario Water Quality Wetted parts are made of stainless steel (304/316) or anti-corrosion coating technology, resistant to mild acid-base and salt spray corrosion, suitable for various complex water quality scenarios such as municipal sewage, industrial wastewater and aquaculture. 6.Multi-Functional Integration, Strong Function Integration Integrates three functions: aeration and oxygenation, water mixing and pollutant degradation. No need to configure additional mixing equipment, one device can meet the core needs of sewage biochemical treatment and water ecological restoration. |
technical parameter
| type | QSB submersible jet aerator |
| material | Cast iron, stainless steel 304/316 |
| Driving type | Direct drive of submersible motor |
| Installation type | Fixed bracket installation |
| Maximum caliber | DN150 |
| maximum flow | 200 m³/h |
| Maximum lift | 12 m |
| Maximum power | 22kW |
| the protection grades | IP68 |
| Insulation grade | Class f |
| Standard voltage | 380V/50Hz 、220V/60Hz、400V/50Hz、440V/60Hz |
product usage
1. Municipal sewage treatment
It is suitable for the aeration tank, anoxic tank, oxidation ditch and other process units of sewage treatment plant, especially for the aeration demand in deep water area, which can strengthen biochemical reaction, improve the degradation efficiency of pollutants such as organic matter and ammonia nitrogen, and stabilize the effluent quality.
2. Industrial organic wastewater treatment
High-concentration organic wastewater treatment tanks covering chemical industry, printing and dyeing industry, paper making industry, food processing industry, etc. can improve the dissolved oxygen in water, improve the biodegradability of wastewater and reduce the difficulty and cost of subsequent advanced treatment through powerful jet mixing.
3. Deep-water lakes and river regulation
It is used in deep water areas such as urban landscape lakes, reservoirs, black and smelly rivers, etc., to solve the problem of hypoxia in deep water bodies, break the stratification of water body temperature and dissolved oxygen, inhibit the excessive reproduction of aquatic plants such as cyanobacteria and duckweed, and repair the ecological environment of water bodies.
4. Deep water aquaculture
Adapted to deep-water fish ponds, shrimp ponds, sea cucumber culture ponds and other scenes, it can transport oxygen to the bottom of water, improve the living environment of cultured animals, reduce the death of floating heads, and improve the culture density and yield, especially suitable for high-density intensive culture mode.
5. Landfill leachate treatment
It is applied to the leachate regulating tank of landfill site to improve the dissolved oxygen content of leachate, promote the decomposition of macromolecular organic matter, and reduce the concentration of pollutants, which provides a good precondition for subsequent membrane separation, biochemical treatment and other processes.
6. Emergency water body repair
In response to sudden water pollution incidents (such as organic matter leakage, lack of oxygen and blackening of water bodies), it can be quickly deployed and put into use, supplementing oxygen to deep water bodies, slowing down the deterioration of water quality and controlling the spread of pollution. "
Product operation guide
check before installation
1. Check that the equipment model matches the working condition parameters (water depth and medium); Check the insulation of the motor, whether the cable is damaged and whether the sealed joint is intact.
2. Clean up the large sundries and sharp particles in the installation waters to avoid the blockage of the impeller and the jet port; Confirm that the mounting bracket/buoy is firm and free from deformation.
Second, the water installation and debugging
1. Fixed installation: fix the equipment on a special bracket to ensure that the jet port faces the center of the water body, and the distance from the pool wall and bottom is ≥ 1m; Slowly sink into the water to the rated depth (≥2m).
2. Buoy installation: adjust the balance weight of the buoy to ensure the level of the equipment and avoid the deviation of the jet direction caused by inclination; Cable should be fixed with clamps to prevent water from impacting and pulling.
3. Before starting for the first time, manually move the impeller to confirm that there is no sticking; Turn on the power supply and observe the effect of jet aeration (it is normal to produce continuous fine bubbles and form circular flow).
Third, the operation monitoring
1. Observe the bubble diffusion range, motor current and temperature regularly during operation, and keep them within the rated range; If there is a sudden drop in bubble volume and abnormal sound, stop the machine immediately for inspection.
2. No-load operation in waterless state is prohibited; It is forbidden to start and stop frequently, and the interval between two starts should be ≥3 minutes to prevent the motor from overheating and damage.
Fourth, downtime and maintenance
1. Normal shutdown: cut off the power supply, and lift the equipment off the water after the impeller stops completely; Clean the entanglement and sludge on the jet orifice, air inlet screen and impeller.
2. Long-term shutdown: drain the accumulated water in the motor cavity and check the wear of the mechanical seal; Dry the cable and store it. Place the equipment in a dry and ventilated place to avoid exposure to the sun and rain.
Safety precautions
1. It is forbidden to move equipment with electricity when working underwater; During maintenance, the power must be cut off and a warning sign "No Closing" should be hung to prevent electric shock.
2. After treating corrosive media, it is necessary to wash the surface of the equipment with clean water, and apply anticorrosive coating in time to prolong the service life. "
FREQUENTLY ASKED QUESTIONS
| Common Problems | Core Causes | Solutions |
| Weak jet aeration with few bubbles | Clogged air inlet filter, scaled jet nozzle, installation depthexceeding rated value | Clean impurities on air inlet filter, disassemble nozzle toremove scale, adjust to rated water depth of 2~5m |
| Abnormal noise or violent vibration during operation | Loose mounting bracket, impeller imbalance, wornbearing | Tighten bracket fixing bolts, correct impeller dynamicbalance, replace damaged submersible motor bearing |
| Seal leakage and water inflow into motor cavity | Aged mechanical seal, failed cable joint sealing, damagedO-ring | Replace mechanical seal and O-ring, redo cable jointwaterproofing, reinforce with sealant |
| Motor overload heating and frequent shutdown | Excessive impeller load caused by water impurities,unstable voltage, blocked heat dissipation channel | Clean large debris in water area, stabilize input voltage,rinse sludge in motor housing heat dissipation holes |
| Tilting of float-mounted equipment and jet directiondeviation | Uneven float inflation, unbalanced counterweight,excessive water flow impact | Adjust float inflation to balanced state, calibratecounterweight block position, reinstall in area with gentlewater flow |
