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Large-suction-force axial flow fan

An axial flow fan and suction technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as large energy loss, large air volume loss, and unreasonable structural settings.

Active Publication Date: 2014-08-13
ZIBO GOLDEN RIVER FANS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Axial flow fans are often used in various ventilation equipment due to their large flow rate. Existing axial flow fans generally include a rotating shaft and multiple blades installed on the rotating shaft. The two sides of the blades are respectively the pressure surface and the suction surface. Traditionally Although this kind of axial flow fan can have a relatively large flow rate, due to the unreasonable structure setting, the loss of air volume and energy consumption is large.

Method used

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  • Large-suction-force axial flow fan

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Effect test

Embodiment 1

[0019] Such as figure 1 , figure 2 , image 3 As shown, the large suction axial flow fan of the present invention includes a rotating shaft 1 and a fan body composed of more than two blades 2 installed on the rotating shaft. The two sides of each blade 2 are respectively the pressure surface of the air outlet side and the air inlet On the suction surface of the side, the outer periphery of the fan blade 2 is equipped with a circular outer frame 3 coaxially arranged with the rotating shaft. The cylindrical base body 5 on the periphery of the main body, the inner peripheral surface of the cylindrical base body 5 is provided with a radial ring groove 6 extending into the side wall of the cylindrical base body, and the periphery of the ring 4 extends into the radial ring groove 6, Said cylindrical base body 5 includes two parts, the left base body 7 and the right base body 8, which are divided in two parts along the radial direction. complete whole.

Embodiment 2

[0021] Such as Figure 4 As shown, the cylindrical base body 5 in this embodiment includes an upper base body 9 and a lower base body 10 split along the circumferential direction. There are more than two axial ring grooves 11 arranged in the circumferential direction in the side wall of the ring 4. The axial ring grooves 11 and the radial ring grooves 6 communicate with each other. outer ring 12.

[0022] Furthermore, said cylindrical base 5 is composed of multiple upper bases 9 and lower bases 10, the main body of the fan is arranged between the adjacent upper bases and lower bases respectively, and the upper and lower surfaces of the upper base 9 and the lower base 10 are uniform. A positioning hole 13 and a positioning pin 14 that can be inserted into the annular groove are provided, so that the adjacent upper base and the lower base can be mated and plugged together. For example, the upper surface of the lower base 10 is provided with a positioning hole 13, and the upper ...

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Abstract

The invention discloses a large-suction-force axial flow fan, which comprises a rotating shaft and a fan main body, wherein the fan main body is arranged on the rotating shaft and is formed by more than two blades, the two side surfaces of each blade are respectively a pressure surface at the air outlet side and a suction force surface at the air inlet side, a round outer frame in coaxial arrangement with the rotating shaft is arranged on the outer periphery of the blade, a circular ring in vertical arrangement to the round outer frame is arranged on the outer periphery of the round outer frame, the large-suction-force axial flow fan also comprises a tubular base body positioned on the outer periphery of the fan main body, a radial annular groove extending into the side wall of the tubular base body is formed in the inner circumference surface of the tubular base body, and the peripheral edge of the annular ring extends into the radial annular groove. After the adoption of the structure, and through the round outer frame arranged on the outer periphery of the blades and the circular ring arranged on the outer periphery of the round outer frame, the peripheral edge of the circular ring extends into the radial annular groove, so a certain labyrinth sealing structure is formed, the wind quantity loss is greatly reduced, and the energy consumption is reduced.

Description

[0001] technical field [0002] The invention relates to an axial flow fan, in particular to a large suction axial flow fan. Background technique [0003] Axial flow fans are often used in various ventilation equipment due to their large flow rate. Existing axial flow fans generally include a rotating shaft and multiple blades installed on the rotating shaft. The two sides of the blades are respectively the pressure surface and the suction surface. Traditionally Although this axial flow fan can have a relatively large flow rate, due to unreasonable structural settings, the loss of air volume and energy consumption is large. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a large suction axial flow fan with simple structure and low energy consumption loss. [0005] In order to solve the above-mentioned technical problems, the large-suction axial flow fan of the present invention includes a rotating shaft and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/38
Inventor 夏致俊
Owner ZIBO GOLDEN RIVER FANS