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Balancing pockets

A technology for balancing containers and drum-shaped rotors, which is applied to non-variable pumps, machines/engines, pump components, etc., and can solve problems such as complicated installation of balancing weights

Inactive Publication Date: 2015-10-14
EBM PAPST MULFINGEN GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of balance weight installation is very complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] figure 1 Drama diagram of the airflow 10 of the drum -shaped rotor 10 in the existing technology.Leaf 20 has a significant curved forward bending forward.The airflow cannot follow the obvious bending and it is separated from the front edge 21 of the blade 20, thereby forming a flow -separated area 25, thereby forming the vortex in the area 25, which leads to losses caused by dissipation.

[0043] figure 2 Observe the three -dimensional view of the drum -shaped rotor 10 of the present invention from the perspective of the top disc.Drum -shaped rotor 10 has multiple bending small blades 20.Leaf 20 has front and frontal 21 and rear side 22.A top disc, 30 and bottom disc 40 are set on the drum -shaped rotor 10.Drum -shaped rotor 10 leaves 20 have raised 23 on its front 21.This raised 23 will figure 1 The flow separation area on each blade 20 is minimized, so the total degree of flow separation is also minimized.The convex 23 connects to the bottom disc 40 at the bottom, so th...

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PUM

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Abstract

The invention relates to a drum rotor wheel for a fan having bulges to accommodate balancing weights. A drum rotor wheel according to the invention has several blades that are curved forward. The blades have a leading edge and a trailing edge. A top disc and a bottom disc are provided on the drum rotor wheel. At least one blade of the drum rotor wheel has a bulge on its leading edge. This bulge minimizes the area of flow separation, as a result of which the magnitude of the flow separation is likewise minimized. In other words, due to the bulge, the efficiency of the drum rotor wheel is increased.

Description

Technical field [0001] The invention involves a drum rotor wheel for fan. Background technique [0002] Drum -shaped rotor fan is a radial flow machine with a rotor wheel, which has multiple turntables that bend forward.Due to the bending blades forward, the drum -shaped rotor can reach the expected working status according to the increased traffic and pressure that can be achieved in the flow medium.For example, for the use of air conditioning systems.Bending forward (leaf) brings high -level energy transmission from fans to conveying fluids.The drum rotor wheel is set with a shell, which will be transformed into a stress energy.The axial direction of the air flow enters the fan. After being accelerated, the axial leaving this shell.The characteristics of the leaf forward bending are a powerful flow deflection, so in most cases, the airflow cannot follow the arc of the blades, and the result is that it is separated or returned.The separation of airflow on the front and front of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/66
CPCF01D5/027F04D29/282F04D29/30F04D29/662F04D29/681F05D2240/306
Inventor 马库斯·霍夫凯特琳·博尔莱因哈德·斯特罗迈耶
Owner EBM PAPST MULFINGEN GMBH & CO KG