คำอธิบาย
General
Supmersible Aerator SP SERIES a result of rapid industrial development, enormous quantity
of wastewater were generated, in the meantime large quantities of household waste water were also resulted from our daily lives.
All these have affected the living quality and damaged the environmental ecology. For this purpose, KIRA has been making every endeavor in researching and developing waste water treatment equipment for years, now KIRA produces a series of industrial submersible aerators and surface aerators, which are capable of effectively treating wastewater and enable BOD & COD rate in the wastewater to meet standard.
These areators have been widely used in industrial wastewater treatment plant and small-scale municipal sewage treatment plant inside and outside the country.
Characteristics(refer to fig.A)
Submersible aerator-SP utilizes the rotation of the impeller
coupled directly to the motor to create a centrifugal force, which
makes local low pressure suck in water. Meanwhile the entrance
of the Impeller results in vacuum to draw air from atmosphere.
Water and air mix in the channel of aeration housing. The air-
water-mixture current is discharged speedily by the centrifugal
force.
Due to the water spurting extremely strong, make the fluid create convection and circulation effectively. Moreover the air becomes tiny bubbles.
On the one hand the bubbles rise slowly, on the other hand the atmosphere oxygen is dissolved in water.
Because the bubbles are tiny and numberless, their surface area is large, it makes the oxygen transfer rate per unit BHP higher than other types of aerator.
Features
- Submersible motor directly drive, low noise, high efficiency.
- It has uinque design for gas mixing chamber whose air intake quantity is big. Air can be mixed well with water. It also has mixing function while aerating.
- Adopt double mechanical seal, can extend usefullife of motor.
- Dual protection:
1.Using a high filtration rate of the filter meah to prevent particles from entering aerator body while maintaining the air input capacity.
2.Enlarge the space between the impeller and the mixing chamber to avoid the impeller being stuck by foreign material. - 4 Poles motor with 50Hz frequency for maximize Aerator performance
* Stainless Chain are provided together with Aerator unit for ease of install - Qualified Silencer for reducing operating noise is presented together with Aerator unit
Construction
| NO. | Name | Material | |
|---|---|---|---|
| GB | JIS | ||
| 1 | Cable | 2RNCT | 2RNCT |
| 2 | The motor cover | HT200 | FC200 |
| 3 | Ballbearing | – | – |
| 4 | O-ring | NBR | NBR |
| 5 | Motor casing | HT200 | FC200 |
| 6 | Mainshaft | 2Cr13 | SUS420J1 |
| 7 | Bracket | HT200 | FC200 |
| 8 | Mechanical seal | C-Al203 | C-Al203 |
| 9 | Lubricant | ISOVG32 | ISOVG32 |
| 10 | Mechanical seal | SIC-SiC | SIC-SIC |
| 11 | Oil cover | HT200 | FC200 |
| 12 | Aeration housing | HT200 | FC200 |
| 13 | Bottom cover of aeration housing | HT200 | FC200 |
| 14 | Entrance panel board | ZGOCr18Ni9 | SUS304 |
| 15 | Screw | A2-70 | A2-70 |
| 16 | Gasket | 3Cr13 | SUS420J2 |
| 17 | Impeller | ZGOCr18Ni9 | SUS304 |
| 18 | Ballbearing | – | – |
| 19 | Stator | – | – |
| 20 | Rotor | – | – |
| 21 | Motor cover | HT200 | FC200 |
| 22 | Lifting rings | 0Cr18Ni9 | SUS304 |
Installation
For better and easier maintenance of the aerator, following instructions shall be noticed:
- The setter should be fixed on concrete base of the aeration basin (Before the aeration basin was filled with waste water).
- When designing the strength of the bridge (As shown in below Fig.) construction, the warping and
the lifting equipment should be considered. - The guide tubes should be prepared in advance and it is advisable to use stainless steel tubes.
- The air pipes should be fixed if necessary depending upon the actual condition.
Performance Curves
Oxygen transfer specific curves
Performance Spec
| Type | Power | Operation range (m.) |
Min-max water depth (m.) |
Air inlet pipe diameter (mm.) |
The maxium intake of air (m3/h) |
Oxygentransfer capacity (kgO2/h) |
Weight (kg) |
|
|---|---|---|---|---|---|---|---|---|
| hp | kW | |||||||
| SP41.5-1.5 | 2 | 1.5 | 1.0-2.0 | 1.0-3.0 | 40 | 40 | 2-1 | 135 |
| SP42.2-2 | 3 | 2.2 | 2.5-5.0 | 1.0-4.0 | 50 | 60 | 3-2 | 147 |
| SP44-2.5 | 5.5 | 4 | 3.0-6.0 | 1.0-4.0 | 65 | 90 | 5-3 | 160 |
| SP45.5-2.5 | 7.5 | 5.5 | 3.5-7.0 | 1.0-4.0 | 65 | 150 | 9-5 | 315 |
| SP47.5-3 | 10 | 7.5 | 4.5-9.0 | 1.5-4.5 | 80 | 170 | 13-7 | 320 |
| SP411-3 | 15 | 11 | 5.0-10.0 | 1.5-4.5 | 80 | 260 | 18-8 | 368 |
| SP415-4 | 20 | 15 | 5.8-11.5 | 1.5-4.5 | 100 | 340 | 23-10 | 385 |
| SP418.5-4 | 25 | 18.5 | 5.9-11.8 | 2.0-5.0 | 100 | 360 | 29-14 | 432 |
| SP422-4 | 30 | 22 | 6.0-12.0 | 2.0-5.5 | 100 | 440 | 36-19 | 456 |
| SP430-6 | 40 | 30 | 7.3-14.5 | 2.0-6.0 | 150 | 510 | 41-21 | 998 |
| SP437-6 | 50 | 37 | 7.5-15.0 | 2.0-6.0 | 150 | 600 | 52-22 | 1080 |
| SP445-6 | 60 | 45 | 7.8-15.5 | 2.0-6.0 | 150 | 700 | 62-25 | 1155 |
| SP455-6 | 75 | 55 | 8.0-16.0 | 2.0-6.0 | 150 | 780 | 82-40 | 1200 |
Installation Dimensions
| Type | Dimensions (mm) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | I | J | R | |
| SP41.5-1.5 | 165 | 300 | 365 | 252.5 | 40 | 173 | 576 | 617 | 30 |
| SP42.2-2 | 170 | 350 | 430 | 302.5 | 50 | 176 | 670 | 698 | 30 |
| SP44-2.5 | 170 | 350 | 430 | 302.5 | 65 | 176 | 670 | 732 | 30 |
| SP45.5-2.5 | 223 | 435 | 540 | 362.5 | 65 | 242 | 800 | 855 | 32.5 |
| SP47.5-3 | 223 | 435 | 540 | 362.5 | 80 | 243 | 800 | 855 | 32.5 |
| SP411-3 | 223 | 435 | 540 | 362.5 | 80 | 248 | 800 | 950 | 32.5 |
| SP415-4 | 223 | 435 | 540 | 362.5 | 100 | 252 | 800 | 955 | 32.5 |
| SP418.5-4 | 223 | 435 | 540 | 362.5 | 100 | 252 | 800 | 1120 | 32.5 |
| SP422-4 | 223 | 435 | 540 | 362.5 | 100 | 252 | 800 | 1120 | 32.5 |
| SP430-6 | 338 | 600 | 740 | 475 | 150 | 346 | 1108 | 1448 | 39 |
| SP437-6 | 338 | 600 | 740 | 475 | 150 | 367.5 | 1108 | 1467.5 | 39 |
| SP445-6 | 338 | 600 | 740 | 475 | 150 | 367.5 | 1108 | 1467.5 | 39 |
| SP455-6 | 338 | 600 | 740 | 475 | 150 | 367.5 | 1108 | 1702.5 | 39 |
Basic Dimensions
| Type | Max water depth (m.) |
Shape and dimensions (m.) | ||
|---|---|---|---|---|
| Round (Diameter) | Square | Rectangular | ||
| SP41.5-1.5 | 3 | 3.5 | 3.1 x 3.1 | 2.5 x 3.8 |
| SP42.2-2 | 4 | 4.8 | 4.2 x 4.2 | 3.4 x 5.2 |
| SP44-2.5 | 4 | 6.6 | 5..8 x 5.8 | 4.8 x 7.1 |
| SP45.5-2.5 | 4 | 8 | 7.1 x 7.1 | 5.8 x 8.7 |
| SP47.5-3 | 4.5 | 9.8 | 8.7 x 8.7 | 7.1 x 10.6 |
| SP411-3 | 4.5 | 12.5 | 11.1 x 11.1 | 9.1 x 13.6 |
| SP415-4 | 4.5 | 12.5 | 11.5 x 11.5 | 9.1 x 13.6 |
| SP418.5-4 | 5 | 12.5 | 11.8 x 11.8 | 9.7 x 14.5 |
| SP422-4 | 5.5 | 12.5 | 12.0 x12.0 | 9.7 x 14.5 |
| SP430-6 | 6 | 16 | 14.5 x 14.5 | 12.5 x 17.0 |
| SP437-6 | 6 | 16 | 15.0x 15.0 | 13.0 x 17.5 |
| SP445-6 | 6 | 16 | 15.5 x 15.5 | 13.0 x 17.5 |
| SP455-6 | 6 | 16 | 16 x 16 | 13.5 x 18.0 |
| Note: To achieve higher efficient operation, oversize particles and long fibers should not in the aeration tank. | ||||
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