Vane structure of axial well pump guide vane
A vane structure and guide vane technology, which is applied to the components, pumps, and pump elements of the pumping device for elastic fluids, and can solve the problems of the curved surface of the guide vane being difficult to split and other problems.
Inactive Publication Date: 2014-07-30
JIANGSU UNIV
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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.
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[0016] Figure 1 to Figure 5 The guide vane structure of the present invention is shown from different angles. It is different from ordinary guide vane blades. It consists of two parts: a twisted section and a cylindrical section. In the cylindrical part, the mold can be freely split to both sides, successfully solving the problem of difficult mold splitting when fully twisted blades are molded. The present invention constructs the blade structure 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 development diagrams of the front and rear curved surfaces of the blade twisted section, respectively.
[0018] The second step is to construct the three-dime...
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The invention provides a novel vane structure of a well pump guide vane. According to the vane structure, the guide vane is divided into a distortion section and a cylindrical section. A vane curved surface is formed by a distortion surface and cylindrical surface sectioning method, an equidistance method is adopted for a distortion section curved surface, an equal altitude section is selected according to needs, corresponding vane shaped wires are drawn on an equal altitude surface and are intensively drawn to form a warp surface plane expanded view, a vane three-dimensional surface is formed according to the plane expanded view, three-dimensional construction of the distortion section of the vane is realized, the cylindrical section of the vane is drawn, and the whole vane structural construction is completed. The guide vane formed by the method solves the problem that the curved surface of the space guide vane is not easy in mold splitting, the front of the vane distortion section is subjected to mold splitting towards the front side, and the back of the vane distortion section is subjected to mold splitting towards the back side; at the cylindrical section, two sides can freely realize mold splitting, and a plastic molding technology of the well pump guide vane with intermediate-high specific speeds is realized.
Description
technical field [0001] The invention relates to a novel structure of guide vane vanes of well pumps, which can solve the problem of difficult parting of traditional space guide vanes. Background technique [0002] At present, the shapes of guide vane blades of well pumps at home and abroad can be classified into two types. One is a space-warped guide vane blade, and the other is a cylindrical blade. The blades of the space guide vane are fully twisted, and are usually processed by casting technology, and are more common in cast iron and cast steel well pumps. The surface of the cylindrical blade is a cylindrical surface, which is generally processed by injection molding, 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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IPC IPC(8): F04D29/54
Inventor 张启华徐媛晖陆伟刚田飞
Owner JIANGSU UNIV