Multiple-stage centrifugal pump impeller matched with radial guide vane
A centrifugal pump impeller and radial guide vane technology, which is applied to the components, pumps, and pump components of a pumping device for elastic fluids, can solve problems affecting people's physical and mental health and quality of life, and avoid re-opening mold casting. , Simple structure, convenient installation effect
Inactive Publication Date: 2015-09-23
JIANGSU UNIV
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Problems solved by technology
Existing water pump designs only focus on and improve hydraulic parameters such as lift, power, and efficiency, but ignore the noise problem, especially when it is used in residents' lives, it affects people's physical and mental health and quality of life
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0017] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, ...
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The invention discloses a multiple-stage centrifugal pump impeller matched with a radial guide vane. The multiple-stage centrifugal pump impeller comprises a front cover plate, a rear cover plate, cylindrical blades and a hub penetrating through the circle center of the rear cover plate. The blades of the impeller are cylindrical blades. The thickness of outlets of the blades becomes small. The back faces of the blades bevel. A certain angle is formed by the tangent lines and diagonal lines of curves of the back faces of the blades. The radius of the cylindrical blades is smaller than that of the front rear cover plate and that of the rear cover plate. The front cover plate of the impeller extends forwards by a certain distance relative to the hub penetrating through the circle center of the rear cover plate. The multiple-stage centrifugal pump impeller is simple in structure and convenient to process. The flowing characteristic of an outlet of the impeller is improved. On the basis of guaranteeing the hydraulic performance of a multiple-stage centrifugal pump, noise is lowered, and water pump noise pollution can be effectively eliminated under the conditions that residents use water.
Description
technical field [0001] The invention relates to a multi-stage centrifugal pump impeller, in particular to a low-noise design multi-stage centrifugal pump impeller matched with radial guide vanes, which is mainly used to solve the noise problem. Background technique [0002] As an important fluid machinery, centrifugal pumps are widely used in various fields of industry, agriculture and national economy. The stages of the multistage centrifugal pump are connected in series, and each stage is composed of an impeller and a guide vane, which can provide a much higher head than a single stage centrifugal pump, and is used for urban building water supply and residential water pressurization, etc. . The impeller is the core part of the water pump, which plays a vital role in the flow, head, efficiency and other parameters of the multistage centrifugal pump. In residential water, the flow rate of the pump is not large, the head requirement is high, and the space is limited. Multis...
Claims
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IPC IPC(8): F04D29/22F04D29/66
Inventor 蒋小平王伟施卫东李伟冯琦陆伟刚吴家辉刘思晗朱嘉炜庞庆龙
Owner JIANGSU UNIV