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Centrifugal long shaft pump with different lifts and assembly process

A long-axis pump and centrifugal technology, applied to pump devices, components of pumping devices for elastic fluids, non-variable pumps, etc., can solve problems such as narrow high-efficiency zones and energy waste, and increase shaft power Effect

Inactive Publication Date: 2016-09-21
SANMEN VOCATIONAL SECONDARY SPECIALIZED SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the narrow high-efficiency zone of most long-axis pumps at present, when they are used in harsh environments, they operate under non-design conditions for a long time, resulting in a lot of energy waste

Method used

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  • Centrifugal long shaft pump with different lifts and assembly process
  • Centrifugal long shaft pump with different lifts and assembly process

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Embodiment Construction

[0016] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] figure 1 and figure 2 A specific embodiment of a centrifugal long-axis pump with unequal head and its assembly process is shown in the present invention: a centrifugal long-axis pump with unequal head and its assembly process, including a long-axis pump body, wherein the long-axis pump body includes a motor 1. The water raising pipe 3 and the impeller 6, wherein the motor 1 is located at the upper end of the water raising pipe 3, a pump seat 2 is arranged between the motor 1 and the water raising pipe 3, and a plurality of transmission shafts 4 are connected to each other on the main shaft of the motor 1, The transmission shaft 4 is located in the lifting pipe 3, and the impeller 6 shaft 5 is arranged below the transmission shaft 4. The impeller 6 is located on the impeller 6 shaft 5. The impeller 6 is respectively the first blade, t...

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Abstract

The invention discloses a centrifugal long shaft pump with different lifts and an assembly process. The centrifugal long shaft pump with the different lifts comprises a long shaft pump body. The long shaft pump body comprises a motor, a water lifting pipe and impellers. Each impeller comprises a first blade, a second blade and a third blade, wherein the slipping coefficient of the first blade is greater than that of the second blade and that of the third blade. The assembly process comprises the following steps that (1) transmission shafts are connected through couplings; (2) the motor is fixed to a pump seat, and the transmission shafts are connected with a spindle of the motor; (3) the impellers are connected to an impeller shaft, and a pump case is connected to the water lifting pipe; (4) a horn mouth is connected to the bottom of the pump case; and (5) the assembled long shaft pump is buried underground. The design of the unequal lifts is adopted for the impellers of the long shaft pump, blades with different streamlines are obtained, and accordingly the shaft power is increased as much as possible while the power and cost of the matching motor are not increased.

Description

technical field [0001] The invention relates to the field of pump bodies, in particular to a centrifugal long-axis pump with unequal heads and an assembly process. Background technique [0002] Centrifugal long-axis pumps play a very important role in fields such as farmland drainage and irrigation, urban drainage, flood control, and sewage treatment. Due to the narrow high-efficiency zone of most long-axis pumps at present, when they are used in harsh environments, they operate under non-design conditions for a long time, resulting in a large amount of energy waste. [0003] The design optimization of the centrifugal long-axis pump is now carried out. This type of centrifugal long-axis pump adopts a multi-stage structure, and its hydraulic components are composed of an inlet horn tube, a multi-stage impeller and a space guide vane. All parts have an impact on the performance of the pump, but the impeller, as an energy conversion component, converts the mechanical energy of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06F04D29/24F04D29/42F04D15/00F04D29/70F04D29/62
CPCF04D13/06F04D15/0088F04D29/242F04D29/426F04D29/628F04D29/708F05D2270/301
Inventor 郑晓
Owner SANMEN VOCATIONAL SECONDARY SPECIALIZED SCHOOL
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