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A design method of submersible pump impeller with wide-width characteristics is presented

A design method and technology for submersible pumps, which are applied in computing, special data processing applications, instruments, etc., can solve problems such as lack of design methods, and achieve the effect of broadening the range of operating conditions.

Pending Publication Date: 2019-02-19
JIANGSU UNIV
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Problems solved by technology

In this way, due to the lack of necessary design methods

Method used

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  • A design method of submersible pump impeller with wide-width characteristics is presented
  • A design method of submersible pump impeller with wide-width characteristics is presented
  • A design method of submersible pump impeller with wide-width characteristics is presented

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Embodiment Construction

[0065] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0066] figure 1 , figure 2 and image 3 The hydraulic design scheme of the impeller of this embodiment has been determined jointly. Two groups of blades are arranged in the impeller channel of the submersible pump, and each group of blades is arranged periodically in the circumferential direction. The first group of blades is arranged in the first half of the impeller channel, and the second group of blades is arranged in the second half of the impeller channel.

[0067] During the implementation of the technical solution: the present invention gradually adjusts the geometric parameters of the impeller through the following relational formula, the impeller outlet diameter D 2 , impeller inlet diameter D s , the impeller outlet width b 2 , the inlet edge L of the fir...

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Abstract

The invention provides the designed head H3 / 4 and the rated speed n parameter at the designed head H1 / 2, 3 / 4Qmax at the designed maximum flow rate Qmax and 1 / 2Qmax at the design head H1 / 2, 1 / 4Qmax, and the geometric parameters of the impeller are adjusted. , impeller outlet diameter D2, impeller inlet diameter Ds, impeller outlet width b2, first group vane inlet side L1, second group vane inlet side L3, first group vane outlet side L2, first set of vane inlet mounting angle beta11, A set of blade exit angles beta 21, a first set of blade wrap angle Phi 1, a second set of blade inlet angles beta12, a second set of blade exit angles beta22, a second set of blade wrap angle Phi 2, and a circumferential relative between the two sets of blades Angle theta. The invention can adapt the submersible electric pump to the variable oil well productivity and ensure the long-term safe and stable operation of the submersible electric pump.

Description

technical field [0001] The invention relates to the field of submersible oil pumps, in particular to a method for designing impellers of submersible oil pumps with wide width characteristics. Background technique [0002] In my country's offshore oilfields, 85% of mechanical oil production wells rely on electric submersible pumps to extract crude oil, and their production contribution reaches more than 90%. At present, due to the uncertain geology of oilfield reservoirs, directional wells, production stimulation measures (such as large-scale pumping due to huge changes in liquid supply capacity, insufficient liquid supply and annular space rehydration production), etc., the actual production capacity of most oil wells cannot be achieved. Accurately predict prenatally. However, the flow-head curve recommended by conventional electric pump units covers a narrow range, and submersible electric pumps often cannot operate in their high-efficiency areas (that is, the operating fl...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17
Inventor 杨阳施卫东周岭肖宇王万宏韩勇
Owner JIANGSU UNIV
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