Du'an Environmental Protection Equipment (Jiangsu) Co., Ltd
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Selection of biological tank aerator, submersible self-priming aerator, nitrification tank jet aerator
Selection of biological tank aerator, submersible self-priming aerator, nitrification tank jet aerator
Product details

    Jiangsu Du'an Environmental Protection has continuously introduced advanced technology and vigorously promoted technological innovation. Based on the first generation of submersible jet aerators developed, a new type of deep-water self-priming submersible jet aerator has been successfully developed. Jiangsu Du'an Environmental Protection has summarized a new design and testing method through systematic research, which has enabled the overall performance of the product to reach the advanced level of similar foreign products, and can directly compete with foreign manufacturers in the market. The new deepwater self-priming submersible jet aerator has a compact structure, simple operation and maintenance, and convenient and fast installation. While maintaining its low-cost characteristics, its performance has been greatly improved. Without the need for compressed air, the submersible aeration depth can reach10mThe bubbles are finer, which increases the contact area between the air and the aeration medium, effectively improving the oxygen transfer rate. The matching non clogging submersible electric pump adopts the sealing technology of the submersible sewage pump used in the Three Gorges of the Yangtze River, greatly improving the reliability of the submersible jet aerator.

    Selection of biological tank aerator, submersible self-priming aerator, nitrification tank jet aerator

    Submersible Aeration Mixing Dual purpose MachineIntroduced the sealing technology of German submersible motors and submersible aerators, and now applied for national patent ZL002429578. The function of this machine is a amphibious aeration device (high-speed and low-speed mixing), which can be used as an aeration and mixing device in various sewage treatment processes. It is particularly suitable for deep tanks (with a maximum depth of 20 meters) for aeration and requires high oxygen transfer efficiency.

    QSB type submersible jet aeratormain scope:

      1. Deep water submersible aerator;

      2. SBR biochemical tank aeration and agitation;

      3. Aeration and agitation of biological nitrification denitrification tank;

      4. Sludge aeration and mixing;

      5. Advanced treatment process for high organic wastewater.

    Characteristics of submersible aerator:

      1. Compact structure and small footprint;

      2. Open structure without blockage;

      3. High transmission efficiency, uniform and soft mixing;

      4. Small gas pressure loss and low energy consumption;

      5. The volume can be adjusted according to technical requirements;

      6. The motor protection function is complete, the sealing is reliable, and it is easy to achieve automatic control;

      7. Easy installation, maintenance, and repair.

    Structure and process flow

    The deep water aeration mixer is powered by a submersible motorReducer, impeller, mixing chamber, foundation, and air inlet pipe, etc.

    Rotating impeller in deep water aeration mixing chamberInhalation of compressed air. Due to the special structure of the impeller and the relatively rotating mixing chamber, the air is cut into small foam, while water is sucked in and the completely mixed air is chopped, and the gas-liquid mixture is horizontally sprayed into the mixing chamber through the channel. In this way, the filling and aeration of micro bubble liquid are uniform, which improves the contact between the gas-liquid two-phase surfaces and enhances the efficiency of the aeration system. The formation and injection of gas and liquid with high turbulence over such a large area greatly improve the oxygen transfer rate and oxygen filling.

    Troubleshooting method for jet aerator

    Fault phenomenon

    Root cause analysis

    Nanjing Du'an Water Treatment and Removal Methods

    power equipment
    overload

    1. The inlet pool does not meet the requirements
    2. The blades of the submersible aerator are surrounded by debris
    3. The blades and guide vanes of a submersible aerator
    Friction arises
    4. The speed of the submersible aerator exceeds the specified value

    1. Improve water inlet conditions
    2. Remove debris and clean with water

    00001. Check the wear of the blades and readjust the installation

    pretend
    4. Adjust the prime mover to meet the rated speed

    Decreased aeration rate
    Less or no exposure
    qi

    1. The diving depth of the submersible aerator is too deep
    2. Wear of the outer circle of the impeller blades or blade parts
    Split damage
    3. The diving aerator is turning the wrong direction
    4. The impeller is loose
    5. The submersible aerator is blocked by impurities

    1. Improve the submersible aerator
    2. Replace the impeller

    3. Correct the rotation direction
    4. Tighten the screws
    5. Remove debris and use water to clean up

    Running with impurities
    Sound or vibration

    1. The foundation of the submersible aerator device is not strong enough
    Loose screws or nuts
    2. Friction occurs between the impeller and guide vanes
    3. Loose impeller screws or damaged blade parts
    4. Unstable water inflow state
    5. The submersible aerator is blocked by impurities

    1. Strengthen the foundation and tighten the screws

    2. Check the center and gap
    3. Tighten the screw or replace the impeller
    4. Adjust the water inlet status
    5. Remove debris and clean with water

    Diving aeration
    The machine cannot be started
    Move or fuse
    circuit breaker

    1. Winding, connector or cable open circuit
    2. Submersible aerator blockage
    3. Leakage or water leakage

    4. Short circuit

    1. Check with an ohmmeter
    2. Cut off the power and remove debris
    3. Check the insulation, if it is below the specified value, it must be
    Perform drying
    4. Use after inspection and maintenance

    Diving aeration
    After the machine is started,
    Circuit breaker passed
    Carrier disconnected

    1. Low voltage

    2. High voltage
    3. Incorrect motor wiring or confusion of connectors
    4. Control cabinet electrical malfunction

    1. Not currently in use or due to excessively long wiring
    Induced voltage drop
    2. Install a transformer and adjust the voltage to the specified value
    3. Adjust wiring and connectors
    4. Check and replace electrical components

    Any adjustment of the equipment must be approved by our company!

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