Three-dimensional design method for turbomachinery impeller with castability

A turbomachinery, three-dimensional design technology, applied in the direction of mechanical equipment, climate sustainability, sustainable manufacturing/processing, etc., can solve the problems of increasing the difficulty of manufacturing and processing costs, and achieve high efficiency, energy saving, cost, and complete castability Effect

Active Publication Date: 2017-08-25
SUMMIT ECO NINGBO TECH CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, since the three-dimensional design of the impeller will produce highly distorted three-dimensional blades, the processing of impellers with three-dimensionally distorted blades will greatly increase the difficulty and cost of manufacturing

Method used

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  • Three-dimensional design method for turbomachinery impeller with castability
  • Three-dimensional design method for turbomachinery impeller with castability
  • Three-dimensional design method for turbomachinery impeller with castability

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] A three-dimensional design method of a castable turbomachinery impeller, suitable for the three-dimensional design of centrifugal or radial flow, mixed flow or oblique flow turbomachinery impellers, the impeller can be closed or semi-open, and the fluid medium It can be liquid single-phase, gas (steam) liquid two-phase, gas (steam) liquid-solid multi-phase or gas single-phase.

[0028] see Figure 6 , the turbomachinery impeller includes a castable impeller body, the impeller body includes a disc 1, a wheel cover 2 and at least two blades 3, and each blade 3 is the same three-dimensional space twisted blade. The above wheel disk 1 , wheel cover 2 and blade 3 can be cast to form a three-dimensional space twisted impeller flow path between the impeller inlet in the impeller body 1 , the impeller outlet and the blade 3 .

[0029] The thr...

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Abstract

The invention discloses a three-dimensional design method for a turbomachinery impeller with castability. The method comprises the following steps of 1) determining meridian plane profiles of an impeller disk and an impeller cover of an impeller according to design demands; 2) on a meridian plane obtained in the step 1), constructing a first meridian streamline, a second meridian streamline and a third meridian streamline for controlling spatial twisted shapes of blades of the impeller, wherein the first meridian streamline is an impeller cover streamline and coincides with the meridian plane profile of the impeller cover, the third meridian streamline is an impeller disk streamline and coincides with the meridian plane profile of the impeller disk, and the second meridian streamline is a middle streamline and is arranged between the first meridian streamline and the third meridian streamline; 3) designing profiles of the blades of the impeller, wherein distribution of a blade mounting angle and blade thickness on the third meridian streamline is determined according to the castability of the formed three-dimensional spatial twisted blades; and 4) forming the three-dimensional turbomachinery impeller with the castability.

Description

technical field [0001] The invention relates to the field of turbomachinery, in particular to a three-dimensional design method of a castable turbomachinery impeller. Background technique [0002] Turbomachinery is a type of power equipment that converts energy through the rotating impeller and the fluid medium flowing through the rotating impeller, such as various centrifugal or diagonal flow pumps, fans, blowers, compressors, steam turbines, gas turbines, etc. All belong to what are commonly referred to as turbomachinery. Turbine machinery is a kind of high energy consumption general mechanical equipment. According to statistics, among the energy consumption of all industrial equipment, the energy consumption generated by pumps and fans accounts for 20% to 20% of the total energy consumption. twenty five percent. For example, in a typical sewage treatment plant, the energy consumption generated by pumps and fans is as high as 75% of the total energy consumption. With th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50F03B3/12
CPCF03B3/12F03B3/121G06F30/17Y02E10/20Y02P70/50
Inventor 宋进平
Owner SUMMIT ECO NINGBO TECH CO LTD
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