11kw submersible sewage pump technical features:
1. The submersible pump can pump rags, short fiber materials, sand-water mixture, general waste and other untreated sewage, and can pass through solid particles with a diameter not larger than the outlet diameter of 20-200.
2. The sewage pump can work normally within the specified range, no cavitation occurs, the operating noise is less than 70 decibels, the operation is balanced, and it has stable head flow characteristics. The motor has sufficient rated power. When running at one point, the electrical power is not overloaded.
3. All the pressure-bearing parts of the submersible sewage pump are subjected to the air pressure test. The test pressure is twice the design pressure, but not less than 0.2Mpa, which lasts for 5 minutes without leakage.
4. After the 11kw submersible sewage pump is assembled, a 0.2Mpa air pressure test is carried out, which lasts for 5 minutes without leakage.
5. The submersible sewage pump is sprayed with epoxy resin anti-corrosion paint, the coating thickness is greater than 300μm, the surface is bright, without blisters, cracks, etc., and the over-current parts are sprayed with epoxy resin anti-corrosion paint.
6. In the dynamic balance test of the impeller and rotor of the submersible sewage pump, the balance accuracy is G6.3.
7. The stainless steel nameplate is firmly fixed in the obvious position of each pump, and the nameplate is stamped with digital signs.
8. The lifting lugs of each pump are placed near the center of gravity of the pump on the upper cover, which is firm and reliable.
11kw submersible sewage pump structure features:
The submersible sewage pump is composed of a submersible motor and a water pump directly connected to form an electromechanical integrated structure. It is a vertical single-stage submersible sewage pump. It adopts a fixed wet installation, and has a compact structure and is easy to use. The oil chamber of the submersible sewage pump is equipped with a water leakage protection alarm function, an over-temperature alarm switch is added for the motor windings of 11kW and above, and a winding anti-condensation device is also provided for the motor windings above 30kW. All protection functions are protected by special protectors. The impeller of the submersible sewage pump adopts a high-efficiency and non-clogging design. It is a large-channel impeller and is integrally cast. An internal anti-loosening locking device is used between the impeller and the shaft, and the impeller can be easily pulled out from the bottom. The submersible sewage pump above 1kw is equipped with a sealing ring (wear-resistant ring), which can effectively ensure the sealing between the impeller and the pump casing. The service life of the sealing ring or the wear-resistant ring is more than 15,000 hours and can be easily replaced. The cable and wire are sealed with special vulcanized rubber sealing head, which can be easily replaced and effectively sealed. The cable wire adopts YCW type oil-proof rubber sheathed cable. The random cable length is 10m, or it can be configured according to user requirements. The pump casing adopts a single volute type, the flow direction line is designed as a gradient type, the lateral drainage, the bottom water absorption, and the non-blocking design has high hydraulic conversion efficiency. The motor adopts squirrel-cage induction submersible motor, the protection level is IP68, the stator winding of the wet installation submersible sewage pump adopts the F-class insulation, and the dry installation submersible sewage pump stator winding adopts the H-class insulation, and the maximum starting current is not more than 6 times the rated current. Efficiency 85~95%, full load power factor ≥ 0.8.
Main material of 11kw submersible sewage pump:
The submersible pump base, pump casing, impeller, etc. are cast with cast iron, which has certain corrosion resistance and can withstand the impact of a certain load. Stainless steel casting is also available.
The motor shaft of the 11kw submersible sewage pump is made of stainless steel, and measures are taken to eliminate stress concentration in the structural design.
All connection accessories, bolts and other fasteners of the submersible sewage pump are made of stainless steel.
The guide rail of the submersible sewage pump is made of carbon steel (stainless steel).
11kw submersible sewage pump quality assurance:
After each submersible sewage pump is assembled, a performance test is carried out to ensure that the overall performance of the unit meets the relevant standards. The test content includes: flow-head curve, flow-power curve, flow-efficiency curve, and the test report is provided to the user, The submersible sewage pump ensures that the first trouble-free operation time is not less than 10,000 hours, and the designed service life of the unit is not less than 15 years.
Post time: 2022-01-18
