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Turbofan and method of making the same

A turbofan and manufacturing method technology, applied in the field of turbine manufacturing, can solve problems such as manufacturing difficulty and high manufacturing cost, vibration and noise at the tail of the fan blade, and rapid air flow at the tail of the fan blade, so as to improve the service life and strength of the fan blade , Improve the effect of fan blade air volume

Active Publication Date: 2019-09-27
GD MIDEA ENVIRONMENT APPLIANCES MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Turbines are widely used in automobile or aircraft engines, and are also widely used in some large-scale machinery and household air supply equipment. Driven by the drive equipment, the turbine turbofan is rotated to make the air flow. Generating wind power, especially the closed turbofan, the wind power generated is also stronger, but the manufacturing difficulty and manufacturing cost are relatively high
[0003] The Chinese patent application number 201310254415.7 discloses a bladeless fan turbine device with splitter blades, which can be improved by setting long fan blades and splitter blades, which can increase the air volume, but due to the air flow of the fan blades during use Flow along the radian of the fan blade. When the flow reaches the tail section of the fan blade, the connection strength of the fan blade itself is weak at the tail section, and the airflow at the tail section of the fan blade is relatively fast. When the airflow leaves the fan blade, the tail of the fan blade It will directly cut the airflow to a large extent, which will cause the airflow to be unstable when it leaves the fan blade, resulting in vibration at the tail of the fan blade, so that the unstable airflow and the vibration at the tail of the fan blade will generate greater noise

Method used

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  • Turbofan and method of making the same
  • Turbofan and method of making the same
  • Turbofan and method of making the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: a kind of turbofan, such as figure 1 , 2 As shown in . Shaped casing 4, the edge of the fan blade 2 close to the mounting column 3 is 95 degrees from the edge of the fan blade 2 away from the mounting column 3, there are 9 fan blades 2, and the edge of the fan blade 2 away from the mounting column 3 is provided with a wave-shaped In the notch 21, the edge of the mounting column 3 near the end of the main body 1 is provided with a diversion ring 31 with a circular arc-shaped cross section.

[0052] Such as figure 1 , 2As shown in , 3, the turbofan is installed on the driver through the mounting column 3, and the driver outputs the rotating force to make the turbofan rotate, so that the main body 1 drives the fan blade 2 on the outer surface to rotate, and the fan blade 2 approaches The edge of one end of the mounting column 3 has a cutting effect on the air when rotating, so that the air can enter the space between the fan blades 2 along the edge of the...

Embodiment 2

[0057] Embodiment 2: a turbofan, the difference from Embodiment 1 is that, as figure 1 , 4 As shown, the thickness of the edge of the fan blade 2 close to the mounting column 3 gradually expands from the main body 1 to the outside, the fan blade 2 is integrally arranged on the main body 1, the casing 4 is welded on the fan blade 2, and the casing 4 is close to the mounting column 3. The side of the inner circumference is provided with a limit step 41 for the end of the fan blade 2 to touch. The side of the outer circumference of the housing 4 near the end of the mounting column 3 is integrally provided with a reinforcing ring 42 with an arc-shaped cross section. The outer circumference of the end of the housing 4 away from the mounting column 3 The side is integrally provided with a fixed outer edge 43 .

[0058] It effectively improves the overall strength of the fan blade 2 away from the main body 1, effectively reduces the large vibration caused by the strength problem dur...

Embodiment 3

[0059] Embodiment 3: a kind of manufacturing method of turbofan, such as figure 1 , 2 , 3, and 8,

[0060] Step 1: Raw material preparation: prepare plastic pellets for injection molding;

[0061] Step 2: Mold preparation: install the main body 1 injection mold and the shell 4 injection mold on the injection molding machine;

[0062] Step 3: Main body injection molding: Pour the prepared plastic particles into the injection molding machine, and inject them into the main body 1 injection mold through the injection molding machine to realize the main body 1 injection molding;

[0063] Step 4: Take out the main body: After the main body 1 is formed after the internal cooling of the mold, open the injection mold of the main body 1, and take out the formed main body 1;

[0064] Step 5: Shell injection molding: Pour the prepared plastic particles into the injection molding machine, and inject them into the injection mold of the shell 4 through the injection molding machine to rea...

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Abstract

The invention discloses a turbofan of a turbine and a manufacturing method thereof and belongs to the field of manufacture of turbines. The turbofan of the turbine and the manufacturing method thereof have the advantages of improving the air flow stability and reducing the noise in an operating process. According to the technical scheme disclosed by the invention, the turbofan comprises a cone-shaped main body and twisted fan blades. A mounting column is arranged on the top of the main body; the fan blades are arranged on the outer surface of the main body in a circular array; a cone-shaped housing is fixed on one side, far from the fan blades, of the main body; the edges at one ends, close to the mounting column, of the fan blades and the edges at one ends, far from the mounting column, of the fan blades form angles of 95 degrees; 9 fan blades are arranged, and wavy notches are formed at the edges at one ends, far from the mounting column, of the fan blades.

Description

technical field [0001] The invention relates to the field of turbine manufacturing, in particular to a turbofan and a manufacturing method thereof. Background technique [0002] Turbines are widely used in automobile or aircraft engines, and are also widely used in some large-scale machinery and household air supply equipment. Driven by the drive equipment, the turbine turbofan is rotated to make the air flow. The wind power generated, especially the closed turbofan, is also more powerful, but the manufacturing difficulty and manufacturing cost are relatively high. [0003] The Chinese patent application number 201310254415.7 discloses a bladeless fan turbine device with splitter blades, which can be improved by setting long fan blades and splitter blades, which can increase the air volume, but due to the air flow of the fan blades during use Flow along the radian of the fan blade. When the flow reaches the tail section of the fan blade, the connection strength of the fan b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/42F04D29/66B29C69/00B29L31/08
Inventor 沈远军
Owner GD MIDEA ENVIRONMENT APPLIANCES MFG