A built-in impeller submersible tubular pump with large thrust water lubricated bearing structure

A water-lubricated bearing and high-thrust technology, which is applied in the direction of cross-flow pumps, circulation pumps, and non-variable pumps, etc., can solve problems such as unable to meet thrust requirements, and achieve convenient step-by-step installation, easy processing and manufacturing, and improved strength and rigidity Effect

Active Publication Date: 2021-12-24
HEFEI HENGDAJIANGHAI PUMP IND CO LTD
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AI Technical Summary

Problems solved by technology

[0003] Due to structural reasons, the existing tubular pumps have a maximum blade diameter of 2.3m, and the maximum thrust that the internal rolling bearings can withstand usually only reaches 20 tons. On the premise of meeting the sealing performance, it cannot meet a larger thrust. demand, so it is urgent to solve

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  • A built-in impeller submersible tubular pump with large thrust water lubricated bearing structure
  • A built-in impeller submersible tubular pump with large thrust water lubricated bearing structure

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Embodiment Construction

[0032]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] see Figure 1~2 , in an embodiment of the present invention, an impeller built-in submersible tubular pump with a large-thrust water-lubricated bearing structure includes a cylindrical casing 4 penetrating in the axial direction, one side of the casing 4 is the water suction end 1, and the other side It is the water outlet end 3 , the water inlet chamber 11 is arranged at the first water suction end, and the guide vane body 31 is arranged at the third wa...

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Abstract

The invention discloses an impeller built-in submersible tubular pump with a large-thrust water-lubricated bearing structure. The blade bodies are all fixed on the casing, and the driving part for driving the impeller part to rotate is arranged in the casing, and the first radial bearing is arranged between the water inlet chamber and the impeller part to bear the radial load on one side of the impeller part. A second radial bearing is set between the impeller and the impeller to bear the radial load on the other side of the impeller; a first axial bearing is set between the water inlet chamber and the impeller to bear the axial load on one side of the impeller. A second axial bearing is provided between the guide vane body and the impeller to bear the axial load on the other side of the impeller. The invention does not need any sealing and locking mechanism, and can complete the assembly of the pump body of a large-scale tubular pump with a blade diameter of 5.7m and a length of 5.7m. Due to the split casting of the water inlet chamber, the impeller part and the guide vane body, it is convenient for processing and manufacturing. Assembly, disassembly.

Description

technical field [0001] The invention relates to the field of water conservancy transportation, in particular to a built-in impeller submersible tubular pump with a large-thrust water-lubricated bearing structure. Background technique [0002] Tubular flow pump is a kind of horizontal axial flow pump. It is a low-lift axial flow pump. It is composed of a motor, a deceleration device and a water pump. It is installed in the machine pit inside the underwater dam. On a straight line, it is approximately straight cylindrical, with less hydraulic loss, high water lifting efficiency, compact structure, convenient installation and maintenance, and simple pumping station engineering. [0003] Due to structural reasons, the existing tubular pumps have a maximum blade diameter of 2.3m, and the maximum thrust that the internal rolling bearings can withstand usually only reaches 20 tons. On the premise of meeting the sealing performance, it cannot meet a larger thrust. needs, and theref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D5/00F04D13/08F04D13/06F04D29/42F04D29/44F04D29/046F04D29/06F04D29/58F04D29/18F04D29/62
CPCF04D5/00F04D13/08F04D13/0606F04D13/064F04D29/426F04D29/448F04D29/046F04D29/061F04D29/586F04D29/18F04D29/628
Inventor 金雷朱庆龙胡薇汪冰钱凤辉魏庆军舒雪辉宋天涯汪小峰孔令杰
Owner HEFEI HENGDAJIANGHAI PUMP IND CO LTD
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