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Method for producing single-pump body multi-flux submersible pump

A production method and submersible pump technology, which are applied to parts, pumps, and pump devices of elastic fluid pumping devices, can solve problems such as complex processing and management processes, reduce the number of molds, reduce production costs, Manage Simplified Effects

Inactive Publication Date: 2008-09-24
TIANJIN GANQUAN GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For an enterprise that produces a large number of product specifications, it is necessary to design and manufacture multiple sets of pump casings and impellers at the same time, which makes the processing and management process complicated.

Method used

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  • Method for producing single-pump body multi-flux submersible pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, the design of impeller

[0018] impeller design

[0019] The design idea is to solve the Euler equation: Ht∞=1 / g(μ 2 Cμ 2 -μ 1 Cμ 1 )

[0020] In the formula: Ht∞------------Theoretical head when the number of pump blades is infinite

[0021] mu 2 ------------Circumferential linear velocity at the largest outer diameter of the impeller outlet

[0022] Cμ 2 -----------Impeller with infinite number of blades and outlet peripheral velocity

[0023] mu 1 --------------- impeller inlet circumferential speed

[0024] Cμ 1 ------------- Inlet circumferential component velocity when the number of impeller blades is infinite

[0025] The whole process of solving Euler's equation is to design the impeller. The main requirement is to solve the parameters, and design the flow field with the graphic method, so that the flow law has a good curve, so that the actual impeller can be designed. The preliminary design is corrected by u...

Embodiment 2

[0026] Example 2: Realization of traffic transformation

[0027] In the process of water pump manufacturing, the adjustment of the impeller does not need to produce a batch of design, but after the design is completed, the impeller is finalized and produced according to the design result. In the assembly process, according to the actual flow needs, select the appropriate impeller and install it in the general pump casing, that is, choose a larger impeller when producing a pump with a larger flow rate, and select a smaller impeller when producing a pump with a smaller flow rate. Complete the production of water pumps with different flow rates. In this way, the production of water pumps requires fewer specifications of the pump casing and more specifications of the impellers, so that when pumps with different flow rates are required for the same well diameter, the same pump casing can be used to replace different impellers. For example: the water pump of model 250QJT80 was orig...

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Abstract

The invention belongs to the submersible pump manufacturing technology, in particular to the manufacturing technology of a centrifugal multi-grade submersible pump. With the same casing of the pump used, the submersible pumps with different flows are manufactured through the change of impellers. The impellers are designed according to the solution of the parameters of Euler equation. Then, a unary theory design method is adopted for the adjustment of the preliminary design. The casing of the pump is commonly used through the adjustment of the main sizes and angles of the impellers and the adjustment of the size of a sealing ring. With the generality of the casing of the pump improved, few pump casings can be used for manufacturing the submersible pumps with a plurality of specifications. The product cost is greatly lowered, the processing and the management are simplified, the resources are effectively saved, and the production cost is lowered.

Description

Technical field: [0001] The invention belongs to the manufacturing technology of submersible pumps, in particular to the manufacturing technology of centrifugal multistage submersible pumps. Background technique: [0002] At present, deep well submersible pumps are centrifugal multi-stage submersible pumps. Each pump body is composed of pump casing, impeller, shaft, sealing ring, etc. The water conservancy design is designed according to the unitary theory. In the conventional design, in order to improve the water outlet efficiency, the design of the pump casing and the impeller is matched with each other, that is, each pump casing corresponds to the design of an impeller, and each design of a water pump with a flow rate must achieve pump casing, impeller Therefore, the matching of the pump casing and the impeller must be ensured in the design and manufacture process of each type of product produced. For an enterprise that produces a large number of product specifications, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/08F04D29/24
Inventor 王德化郭富强
Owner TIANJIN GANQUAN GROUP
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