Design algorithm for geometric parameters of efficient non-clogging spiral centrifugal pump blade wheel

A technology of spiral centrifugal pump and design algorithm, which is applied to the components, pumps, and pump components of pumping devices for elastic fluids, which can solve the problems of difficult and unsolved impeller manufacturing, and achieves the advantages of application and application. programming, ensuring mutual matching, calculating precise effects

Inactive Publication Date: 2019-11-08
山西天海给排水设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the inventor did not give the design of the basic parameters in this patent, and still did not solve the problem of impeller manufacturing difficulty

Method used

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  • Design algorithm for geometric parameters of efficient non-clogging spiral centrifugal pump blade wheel
  • Design algorithm for geometric parameters of efficient non-clogging spiral centrifugal pump blade wheel
  • Design algorithm for geometric parameters of efficient non-clogging spiral centrifugal pump blade wheel

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Embodiment Construction

[0067] A design algorithm for the geometric parameters of the impeller of a high-efficiency non-clogging screw centrifugal pump of the present invention is characterized in that it includes the following formula:

[0068]

[0069]

[0070]

[0071]

[0072] In the formula:

[0073] D. 1 — impeller inlet diameter, m;

[0074] D. 2 —Impeller outlet diameter, m;

[0075] H—design head, m;

[0076] no s —specific speed,

[0077] n—impeller speed, rev / min;

[0078] k 1 - Scale factor;

[0079] k 2 - Scale factor;

[0080] L=1.134D 1 0.7326 -0.053 (5)

[0081]

[0082] k 3 =-0.2654e -32L +0.03e 0.6L (7)

[0083] In the formula:

[0084] b 2 —blade outlet width, m;

[0085] Q—Design flow rate, m 3 / Second;

[0086] g—coefficient of gravity, N / kg;

[0087] H—design head, m;

[0088] k 3 - Scale factor;

[0089] L—blade length, m.

[0090]

[0091] In the formula:

[0092] d h — impeller hub diameter, m;

[0093] Q—Design flow rate, m 3...

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Abstract

The invention discloses a design algorithm for geometric parameters of an efficient non-clogging spiral centrifugal pump blade wheel, and belongs to the field of industrial design. The technical problem to be solved is to provide a calculation formula for the geometric parameters of the spiral centrifugal pump blade wheel, so that the design of a centrifugal pump is more accurate, and the efficiency and performance of the centrifugal pump are improved. The technical scheme adopted for solving the technical problem is as follows: according to the design algorithm for the geometric parameters ofthe efficient non-clogging spiral centrifugal pump blade wheel, the specific formula is used for calculating blade wheel inlet diameter D1, blade wheel outlet diameter D2, blade outlet width b2, blade length L, blade wheel hub diameter dh, outlet edge inclination angle alpha2, axial plane central inclination angles alpha1 and alpha3, blade inlet inclination angle gamma, blade back surface curvedsurface equation zeta1, blade working surface curved surface equation zeta2 and the like. The design algorithm can be widely applied to the field of industrial design.

Description

technical field [0001] The invention relates to a design algorithm for the geometric parameters of the impeller of a high-efficiency non-clogging screw centrifugal pump, which belongs to the technical field of industrial design. Background technique [0002] The impeller of the centrifugal pump is to transfer the energy of the prime mover to the liquid in the pump through the action of centrifugal force, so that the speed and pressure of the liquid are increased, the liquid in the pump is discharged, and the liquid in the inlet pipeline is sucked in, which is an important part of the centrifugal pump. one of the parts. Screw centrifugal pumps were originally used to transport fish, and later used to transport solid-liquid two-phase fluids, and can also be used to drain water and transport high-viscosity liquids. Because this kind of pump has two functions of positive displacement pump and centrifugal pump, it has many advantages such as good non-clogging performance, good n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/22F04D29/24
CPCF04D29/2216F04D29/242
Inventor 耿尚友王秀礼刘喜荣高瞻
Owner 山西天海给排水设备有限公司
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