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A construction technology of axial curved surface of guide vane of well pump

A structure and curved surface technology, applied in the field of axial curved surface structure technology, can solve the problem that the curved surface of the space guide vane is not easy to split and other problems

Active Publication Date: 2018-03-06
FUJIAN SILVER ELEPHANT ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the problem that the curved surface of the space guide vane is not easy to be molded is solved, and the plastic molding technology of the guide vane of the medium-high specific speed well pump is realized.

Method used

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  • A construction technology of axial curved surface of guide vane of well pump
  • A construction technology of axial curved surface of guide vane of well pump
  • A construction technology of axial curved surface of guide vane of well pump

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Experimental program
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Embodiment Construction

[0016] Figure 1 to Figure 5 The new guide vane blades of the present invention are shown from different angles. It is different from ordinary guide vane blades. It is divided into two parts: a twisted section and a cylindrical section. The surface part can be freely parted to both sides, successfully solving the problem of difficult parting of the front and back sides of the fully twisted blade curved surface. The invention completes the construction process of the curved surface of the twisted section of the blade through the following steps.

[0017] The first step is to draw the plane expansion diagram of the blade. Such as image 3 As shown, adopt the equidistance method, take 1 to 7 contour sections, and draw the corresponding blade shape lines on the 7 contour surfaces. Then, draw these blade profiles together on the same plan view. Such as Figure 4 and 5 Shown are the plane expansion diagrams of the front and back side surfaces of the twisted surface, respective...

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Abstract

The invention proposes an axial curved surface construction process of the guide vane of a well pump. The curved surface of the blade is constructed by using the twisted surface and the cylindrical surface segmentation method. According to the method, the contour section is selected according to the needs, the corresponding blade shape line is drawn on the contour surface and the plane expansion diagram of the twisted surface is drawn collectively, and then the three-dimensional curved surface of the blade is constructed according to the plane expansion diagram to realize the structure of the twisted surface of the blade, and finally the blade is drawn Cylindrical segment to complete the blade surface construction. The guide vane constructed by this method solves the problem that the curved surface of the space guide vane is not easy to part. Realize the plastic molding technology of guide vane of well pump with medium and high specific speed.

Description

technical field [0001] The invention relates to an axially curved surface construction process of a guide vane of a well pump, which can solve the problem of difficult parting of the guide vane in a traditional space. Background technique [0002] At present, the shapes of guide vanes of well pumps at home and abroad can be classified into two types. One is to use space guide vanes, and the other is to use cylindrical blade guide vanes. The blades of the space guide vane are fully twisted, usually using casting technology, more common in cast iron and cast steel well pumps. Cylindrical blade guide vane is a cylindrical surface, generally adopts injection molding process, and is more common in plastic well pumps. Plastic materials have natural advantages, such as low cost and light weight. At present, in the well pump industry, more and more manufacturers use plastic materials to produce key hydraulic components of well pumps. In addition, the surface finish of the plasti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/30
Inventor 张启华徐媛晖陆伟刚田飞
Owner FUJIAN SILVER ELEPHANT ELECTRICAL