Unlock instant, AI-driven research and patent intelligence for your innovation.

Spherical fairing impeller

A technology of shroud and impeller, which is applied to parts of pumping devices for elastic fluids, non-variable pumps, machines/engines, etc., and can solve problems such as low fan efficiency, high shaft power, and insufficient fan efficiency , to achieve the effect of improving the efficiency of the fan

Active Publication Date: 2019-03-22
FOSHAN CITY NANHAI POPULA FAN
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The windward surface of the hub of the existing mixed-flow impeller is flat or concave. During the use of the impeller, the total pressure of the mixed-flow impeller is low, the efficiency of the fan is low, and the shaft power is high, resulting in the efficiency of the fan. lead to relatively high energy consumption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spherical fairing impeller
  • Spherical fairing impeller
  • Spherical fairing impeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention. In addition, all the connection / connection relationships mentioned in this article do not refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the invention can be combined interactively on the premise of not conflicting wi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a spherical fairing impeller comprising an impeller body. The impeller body comprises a hub and a plurality of blades arranged on the side face of the hub, a fairing is arranged on the upper end face of the hub, the cross section of the fairing in the axis direction of the hub is in an arch shape, an arc opening of the arch shape faces the upper end face of the hub, the arcof the arch shape is a minor arc, the diameter of the impeller body is D, the height of the fairing is L, L is equal to (0.1-0.2)D, the cross section of the hub in the axis direction is in a circulartruncated cone shape, the included angle between the generatrix of the circular truncated cone shape and the central axis of the circular truncated cone shape is 25 degrees to 32 degrees, the small-area end surface of the circular truncated cone shape is the upper end surface of the hub, and the bottom edge of the fairing is connected to the edge of the upper end face of the hub. The invention further provides the novel impeller for a mixed flow turbine.

Description

technical field [0001] The invention relates to an impeller, in particular to a spherical shroud impeller of a mixer. Background technique [0002] The windward surface of the hub of the existing mixed-flow impeller is flat or concave. During the use of the impeller, the total pressure of the mixed-flow impeller is low, the efficiency of the fan is low, and the shaft power is high, resulting in the efficiency of the fan. resulting in relatively high energy consumption. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a new type of impeller for a mixed flow impeller. [0004] The solution that the present invention solves its technical problem is: [0005] A spherical shroud impeller, comprising an impeller, the impeller includes a hub and several blades arranged on the side of the hub, a shroud is arranged on the upper end surface of the hub, and a shroud is arranged along the hub. The cross-sections in the axi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F04D23/00F04D29/26F04D29/40
CPCF04D23/00F04D29/26F04D29/403Y02E10/20
Inventor 唐秀文林志良
Owner FOSHAN CITY NANHAI POPULA FAN