1, Introduction
     1.1  According to customer design requirements, provide diving jsog aerator, conforms to the condition of design requirement.
     1.2 Provide diving jsog aerator can meet the design, manufacture, installation and acceptance criteria.

     1.3  The diving jsog aerator can make water agitation and oxygen filling at the same time, can obtain higher oxidation absorption rate, and possesses the advantages of non-clog impeller.

     1.4  Strong one-way flow, resulting in effective convective circulation, along with the change of water level and the motor load is small, easy to install.

     1.5  By aeration dedicated pump water flow through the nozzle to form high speed water flow, the formation of negative pressure suction air around the nozzle, through the mixing chamber and water mix, in the spread of the horn tube produce water vapor mixture flow, high speed jet, with lots of bubbles in a large area and deep waters of the water vortex stirring, aeration, and the shaft power changes over the depth of subduction, the volume can be adjusted. Jetting diving aerator can be applied to the water level change a larger pool.

2, Technical Specifications

annotation : The above parameters are for reference only, the equipment to determine the production according to the scene or drawings.

3, Purpose and scope of use

   3.1  Used in sewage treatment plant aeration tank, aeration settling pool, the mixture of sewage sludge aerobic and mixed;

   3.2   The wastewater biochemical treatment or aquaculture pond increases oxygen;

   3.3   Medium temperature is not more than 40 ℃, medium PH between 5-9;

    3.4  The environment temperature is not higher than 40 ℃

4, technical requirements

   4.1  Diving jsog aerator by aeration pump, nozzle, the proliferation of air inlet pipe, pipe, muffler, etc.

   4.2   Aeration dedicated pump can work within the prescribed scope of normal and no cavitation occurs, run less than 70 db noise, smooth operation, the motor has the enough power rating

   4.3  Aeration dedicated all pressure parts of pump pressure test, the test pressure for the 2 times the design pressure, but not less than 0.2 Mpa, lasts for 5 min and no leak phenomenon.

   4.4   After aeration special pump assembly, 0.2 Mpa pressure experiment, lasts for 5 min and no leak phenomenon.

   4.5   Aeration is special pump spray epoxy anticorrosive paint, coating thickness is more than 300 microns, the surface light, no sand holes, cracks, etc., flow components with spray epoxy anticorrosive paint.

   4.6  Aeration pump impeller, rotor dynamic balance test, balance to G6.3 precision.

   4.7  Stainless steel nameplate securely fixed in each dive jsog aerator clear position, nameplate adopts digital sign of stamping.

   4.8  Each dive jsog aerator lifting ear in aeration dedicated pump cover, near the center of gravity of the solid and reliable.

5, structure characteristic

   5.1   Aeration and special pump by the submersible motor pumps straight league form electromechanical integrated structure, submersible pump for vertical single stage. Diving jsog aerator can adopt mobile and fixed wet installation system for installation, compact structure, easy to use.

  5.2   Aeration for the oil chamber of the pump and motor cavity with leakage protection alarm function (more than 4 kw).

   5.3  Aeration adopts high efficiency non-clog pump impeller design for special purpose, as the channel impeller, the impeller for whole casting, between the impeller and shaft USES the internal locking locking devices, the impeller can be easily drawn from the bottom.

   5.4   Aeration adopts high efficiency non-clog pump impeller design for special purpose, as the channel impeller, the impeller for whole casting, between the impeller and shaft USES the internal locking locking devices, the impeller can be easily drawn from the bottom.

   5.5 Cable wire sealing adopts special rubber sealing head, can easily be replaced and can effectively seal, cable USES YCW type oil rubber sets of cables, cable length randomly to 10 m, or according to the demand of users

   5.6   Aeration is special using single volute pump shell, lateral displacement, bottom water, non-blocking design hydraulic high conversion efficiency.

   5.7   Aeration special pump mechanical seal structure is adopted to improve the sealing, respectively in the oil chamber and the pump shell, ensure proper and reliable work of the water pump, oil chamber has enough space to accommodate the expansion of the oil, and can be easily replaced.

   5.8  Motor adopts diving squirrel-cage induction motor, protection grade IP68, wet aeration special pump stator winding installation with class F insulation.

6, Texture of material 

   6.1   Aeration is special pump, pump shell with HT250 cast iron casting, has certain corrosion resistance, and can withstand a certain load impact.

   6.2  Special pump motor shaft aeration using 2 cr13 corrosion resistant materials, adopted in the structural design of the measures to eliminate the stress concentration.

   6.3  Aeration special mechanical seal of pump according to the situation of pumping medium respectively using silicon carbide/silicon carbide, tungsten carbide, tungsten carbide, silicon carbide/tungsten carbide material, the design of the mechanical seal service life of 12000 hours.

   6.4   Aeration pump bearing NSK bearings imported, its cumulative operating life of design ensures that in more than 40000 hours.

   6.5  Diving jsog aerator static seal o-rings with nitrile butadiene - 70.

   6.6  Diving jsog aerator all fasteners are stainless steel.

   6.7 Diving jsog aerator inlet pipe material is zinc plated.

   6.8Diving jsog aerator inlet pipe material is zinc plated.

7, Quality Assurance

    Jetting aerator each dive in after the assembly, performance testing, to ensure that the overall performance of the unit in line with the relevant standards, to ensure trouble-free operation time is not less than 8000 hours, for the first time design service life of the unit is not less than 15 years.

8, installation and commission 

    Diving jsog aerator adopts mobile installation system for installation, can easily for installation, debugging and maintenance.

9, operational control 

    Jetting aerator are draw out each dive protection signal power cables and control cables, diving into the special control device for jsog aerator for overload and lack of phase, such as short circuit, leakage and overtemperature protection and provide the corresponding indicator, to ensure reliable operation.

   Monitoring device, motor stator temperature monitoring, on the three-phase stator windings of the motor is equipped with temperature sensors, and configure the thermal protection switch (set at 150 ℃ action), so that when the overtemperature shutdown.

Machine: the terminal box beside a submersible sewage pump all into and out of lead terminal, and have run, downtime, power on and on-site manual start-up, shut-down and emergency stop self-locking function, and has made great installation, debugging and maintenance work.

10, scope of supply

  Form a complete set of complete diving jsog aerator, including aeration is special pump, air inlet pipe, the nozzle, muffler, etc