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Combination pneumatic helical runner and method for manufacturing same

The technology of a spiral impeller and manufacturing method is applied in the field of extra-large pneumatic spiral impeller and its manufacturing, which can solve the problems of large waste of raw materials, high processing cost, and long processing cycle, and achieve convenient maintenance, reduced manufacturing cost, and reduced processing effect of difficulty

Inactive Publication Date: 2009-05-06
NANJING YUNENG INSTRUMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this type of wind power spiral impeller, it cannot be manufactured by traditional turning. If it is processed by expensive machining centers, or by casting or die forging, the process is complicated, the processing cycle is long, the waste of raw materials is large, and special tooling needs to be designed. , molds, fixtures, high processing costs
As for the extra-large spiral impeller, it is almost impossible to use the above processing methods. Even if it is manufactured at a huge cost, the transportation, installation, and maintenance of the spiral impeller are even more difficult.

Method used

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  • Combination pneumatic helical runner and method for manufacturing same
  • Combination pneumatic helical runner and method for manufacturing same
  • Combination pneumatic helical runner and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment is a double blade S-shaped helical impeller. Figure 1 shows a top view of a single impeller unit. This impeller unit 1 has two blades, forming an S shape. The upper surface of the blade is a plane 1-2, and the side elevation 1-1 of the blade is a concave curved surface, which can effectively receive The wind energy is converted into rotational torque, and the double blades are integrated with the rotating hub 1-3, and the center of the rotating hub has a through hole 1-4. Figure 2 shows the bottom view of a single impeller unit, the lower surface of the blade is a plane 1-6, and the side elevation of the blade 1-5 is an outwardly protruding arc surface, which can guide part of the wind energy to the concave curved surface of the blade. Figure 3 shows a schematic diagram of the assembly of three double impeller units. 1P is the bottom impeller unit, 2P is the second impeller unit, 3P is the third impeller unit, and the misalignment angle difference betwe...

Embodiment 2

[0045] This embodiment is a four-bladed helical impeller. Figure 6 Give a top view of a single four-blade impeller unit, the shape of the blades is straight, this impeller unit 2 has four blades, the side elevation 2-1 of the blade is a curved surface, the upper surface of the blade is a plane 2-2, the four blades and the hub 2-3 are integrated, and the hub center has through hole 2-4. Figure 7 A schematic diagram of the assembly of three double four-blade impeller units is given. 1P is the bottom impeller unit, 2P is the second impeller unit, 3P is the third impeller unit, the misalignment angle difference between the bottom impeller unit and the second impeller unit is θ, and the dislocation between the bottom impeller unit and the second impeller unit The angle difference is 2θ, and the misalignment angle difference between the bottom impeller and the third impeller is 3θ. Figure 8 A frontal view of the assembled four-bladed helical impeller is given, Figure 9 The th...

Embodiment 3

[0050] The helical impeller given in this embodiment is a six-blade helical impeller. The rotating hub 3 of the six-bladed helical impeller unit in this embodiment is composed of six arc-shaped members, and the top surface of each arc-shaped member 3-1 is equidistantly provided with several protruding positioning pins 3-2, and the bottom surface of each arc-shaped member is equidistant from each other. Several positioning holes 3-3 are provided, and the positioning pin and the positioning holes are on the same axis up and down. Six arc components are assembled and spliced ​​into a circular hub 3 (see Figure 10 ), the six blades are respectively fixed to the six arc-shaped components, thus completing the horizontal assembly of the bottom impeller unit (layer 1P) (see Figure 13 ), after that, follow the same steps to assemble the impeller unit on the upper layer, that is, the 2P layer. When assembling, insert the positioning pin on the 1P layer arc member into the positioning ...

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Abstract

The invention relates to a combined air-operated screw impeller and a manufacturing method thereof. The combined air-operated screw impeller is characterized in that the combined air-operated screw impeller is formed by assembly of a plurality of impeller units along the direction of a rotation axis of the impeller; each impeller unit is at least provided with two blades; and various impeller units rotate at the same angle in the radial direction in turn, so as to form the screw impeller. The impeller unit can consist of a rotating hub and a plurality of blades, wherein the blades are connected to the outside of the arc of the rotating hub and symmetrically distributed opposite to the rotating hub; the upper surface of the rotating hub is provided with a prominent pin stop, and the lower surface of the rotating hub is provided with a positioning hole; and the rotating hub can be divided into cambered members with the same shape. The blades of the impeller units can be cambered, wherein one upright side faces of the blades are convex cambered surfaces, and the other upright side faces of the blades are concave cambered surfaces; and the blades of the impeller units can be linear, and both upright side faces of the blades are helical cambered surfaces. The special structure of the product is suitable for manufacturing, assembling, conveying and maintaining the screw impeller in sections, and can meet the demand of a large or oversized wind generating set on the screw impeller.

Description

technical field [0001] The invention relates to a pneumatic spiral impeller and a manufacturing method thereof, in particular to an extra-large pneumatic spiral impeller which is convenient for assembly and construction and a manufacturing method thereof. Background technique [0002] The wind-driven spiral impeller is a key component of energy conversion used in wind power generation equipment. For different use occasions, the size of the wind-driven spiral impeller is usually large and tends to increase continuously. The technical performance parameters such as the pitch of the wind-driven spiral impeller and the curvature of the helical surface will be designed according to the actual conditions of the wind power generation equipment installation. Sure. For this type of wind power spiral impeller, it cannot be manufactured by traditional turning. If it is processed by expensive machining centers or other equipment, or it is processed by casting or die forging, the proces...

Claims

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Application Information

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IPC IPC(8): F03D3/06
CPCY02E10/74Y02P70/50
Inventor 胡国祥
Owner NANJING YUNENG INSTRUMENT CO LTD