Analysis of the main features of the fully through flow submersible electric pump

Submersible tubular pump absorption of submersible pump and the advantages of tubular pump, while also taking into account the shortcomings of other pumping stations and complexity, several new products will be the integration of a variety of mature technology integration and the formation, the principle is the pump impeller mounted on the rotor cavity of the motor rotor into the impeller of the water pump. The invalid part becomes part of the motor, when the water flow from the rotor cavity flow, hence the name. This device not only maintains the submersible pump engineering investment, has the advantages of compact structure, low noise, women's convenient, good heat dissipation, while maintaining the tubular pump hydraulic performance, smooth flow passage, the advantages of high efficiency of device.
At present, the submersible electric pump technology in our country has developed rapidly, the accumulation of experience, and the full penetration of the development and development of submersible electric pump provides the basis and conditions, the main features are as follows:
(1) the structure of submersible tubular pump is compact, axial size is shortened by more than half, light weight, metal consumption is only the traditional submersible pump 1/2, not only save metal materials, production process can greatly reduce the consumption of energy and manpower, is a resource conserving products.
(2) the assembly precision is high, the balance condition is good, the vibration isolation function of the water body, the operation is very smooth, the noise and the vibration are small, effectively reduce the noise and the heat pollution, it is the environmental protection product.
(3) and because the flow through the submersible tubular pump, reduce the bend and specific (diffusion or shrink) effect, velocity distribution, flow balance, partial loss is very small, with a very short channel, channel loss, device efficiency can be increased.
(4) the thrust force is small, the pump main shaft does not bear the torque, the shaft only need to consider the moment, can do a rough and short, high strength and stiffness, the first critical speed can reach more than 200% of the rated speed. Moment of inertia is large, so the performance of submersible tubular pump runaway especially good, suitable for all kinds of flow mode with the use of.
(5) take a wet coil of stator winding structure without sealing technology of submersible tubular pump, multilayer foundation by the establishment of the theory on the melting impurities dispersed coextrusion technology patent special winding line, water winding line is not afraid of water, there is no domestic submersible pump manufacturers most headache due to poor sealing and Water Leakage the insulation safety, reliability is much higher than that of the existing dry type submersible pump stator.
(6) due to the short axial size, light weight, small size, to achieve rapid self even installation, is expected to be installed once only 10 minutes.
To the value of the full penetration of the electric submersible pump is larger, the more obvious advantages, and therefore is particularly suitable for low head and large flow or large flow pump station installation and use.