CN203906397U - Reversible axial flow fan - Google Patents

Reversible axial flow fan Download PDF

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Publication number
CN203906397U
CN203906397U CN201420290803.0U CN201420290803U CN203906397U CN 203906397 U CN203906397 U CN 203906397U CN 201420290803 U CN201420290803 U CN 201420290803U CN 203906397 U CN203906397 U CN 203906397U
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CN
China
Prior art keywords
shape
air duct
axis
air
axial flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420290803.0U
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Chinese (zh)
Inventor
雷森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JINGU FAN GROUP Co Ltd
Original Assignee
JINGU FAN GROUP Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JINGU FAN GROUP Co Ltd filed Critical JINGU FAN GROUP Co Ltd
Priority to CN201420290803.0U priority Critical patent/CN203906397U/en
Application granted granted Critical
Publication of CN203906397U publication Critical patent/CN203906397U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the technical field of axial flow fans and particularly relates to a reversible axial flow fan. The reversible axial flow fan comprises a cylindrical air barrel, wherein multiple flow guiding plates peripherally arranged in the air barrel at intervals in an equal-angle mode are provided with driving motors, the axes of the driving motors are collinear with the axis of the air barrel, the inner ends of the flow guiding plates are fixedly connected with bases of the driving motors, and the outer ends of the flow guiding plates are fixedly connected with the inner wall of the air barrel. Hubs are arranged on output shafts of the driving motors, and multiple blades are arranged on the hubs. The reversible axial flow fan is characterized in that the flow guiding plates are in shapes of wings, circular-arc plates or single plates with planes perpendicular to the axis of the air barrel as '['-shaped cross sections, or in shapes of wings, circular-arc plates or single plates with planes perpendicular to the axis of the air barrel as 'Z'-shaped cross sections, or in shapes of wings, circular-arc plates or single plates with planes perpendicular to the axis of the air barrel as 'I'-shaped cross sections.

Description

A kind of reversible axial flow fan
Technical field
The utility model belongs to axial-flow blower technical field, relates in particular to a kind of reversible axial flow fan.
Background technique
At present, reversible axial flow fan is widely used in all trades and professions, as tunnel and subway ventilation almost all complete by blower fan, the reversible axial flow fan that possesses clockwise and anticlockwise air blowing function can block and forward and oppositely blowing during fire smoke evacuation, and the design by impeller shape guarantee as far as possible clockwise and anticlockwise air output and blast size basically identical.In order to optimize the performance of propeller fan, existing design general concern is choosing of the design of impeller shape and drive motor etc., drive motor and the guide plate that it is fixedly connected with air duct inwall are positioned at air duct equally, the air-flow of flowing through is exerted an influence equally, how optimizing said structure is the key of further optimizing propeller fan performance, and said structure affects noise level and the energy consumption of propeller fan equally.
Model utility content
The utility model provides the reversible axial flow fan of a kind of high-effect, low noise, energy-conserving and environment-protective for solving the technical problem existing in known technology.
The technological scheme that the utility model is taked for the technical problem existing in solution known technology is: a kind of reversible axial flow fan comprises columnar air duct, a plurality of guide plates by circumferential equal angles interval in air duct are provided with drive motor, the axis conllinear of the axis of described drive motor and air duct, the inner of guide plate and the support of drive motor is affixed, the inwall of outer end and air duct is affixed; On the output shaft of drive motor, be provided with wheel hub, on wheel hub, be provided with a plurality of blades; It is characterized in that: the sectional shape that the plane that being shaped as of described guide plate be take perpendicular to air duct axis is cross section is " air-foil of [" shape, circular arc plate aerofoil profile or veneer shape, or air-foil, circular arc plate aerofoil profile or veneer shape that the sectional shape that the plane of take perpendicular to air duct axis is cross section is " Z " shape, or the plane of take perpendicular to the air duct axis sectional shape that is cross section be " work " shape air-foil, circular arc plate aerofoil profile or veneer shape.
Advantage of the present utility model and good effect are: the utility model provides a kind of reversible axial flow fan of new structure, by optimization, be used for connecting air duct inwall and drive motor guide plate to be shaped as the sectional shape that the plane of take perpendicular to air duct axis is cross section be the " air-foil of [" shape, circular arc plate aerofoil profile or veneer shape, or the air-foil that the sectional shape that the plane of take perpendicular to air duct axis is cross section is " Z " shape, circular arc plate aerofoil profile or veneer shape, or the air-foil that the sectional shape that the plane of take perpendicular to air duct axis is cross section is " work " shape, circular arc plate aerofoil profile or veneer shape, the deflection air-flow pivot of maneuver that the impeller forming from wheel hub and blade is flowed out in realization to, the kinetic energy of deflection air-flow is transformed into static energy simultaneously, improve static pressure efficiency, and make the highest total pressure efficiency operating point of blower fan and the highest static pressure efficiency operating point closer to each other.Compare with the reversible axial flow fan of existing structure, reduced welding procedure and processing cost, promoted the installation efficiency of propeller fan, promoted operation usefulness, energy-conserving and environment-protective, aerodynamic noise are low.
Preferably: on wheel hub, along circumferential equal angles, be interval with a plurality of slots, be provided with the petiole mutually suitable with slot shape in the inner of blade, petiole inserts in slot also affixed by screw.
Preferably: on the outer wall of air duct, be provided with a plurality of that extend vertically, with the mounting plate of attachment hole.
Accompanying drawing explanation
Fig. 1 is that master of the present utility model is depending on partly cuing open structural representation;
Fig. 2 is side-looking structural representation of the present utility model.
In figure: 1, fair water cone; 2, blade; 3, air duct; 4, mounting plate; 5, guide plate; 6, drive motor; 7, wheel hub.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples and be described in detail as follows:
Refer to Fig. 1 and Fig. 2, the utility model comprises columnar air duct 3, and a plurality of guide plates 5 by circumferential equal angles interval in air duct 3 are provided with drive motor 6, the axis conllinear of the axis of drive motor 6 and air duct 3.
On the output shaft of drive motor 6, be provided with wheel hub 7, on wheel hub 7, be provided with a plurality of blades 2.In the present embodiment, on wheel hub 7, along circumferential equal angles, be interval with a plurality of slots, be provided with the petiole mutually suitable with slot shape in the inner of blade 2, petiole inserts in slot also affixed by screw.
The support of the inner of guide plate 5 and drive motor 6 is affixed, the inwall of outer end and air duct 3 is affixed.Guide plate 5 after optimization is selected following shape: the plane of take perpendicular to air duct 3 axis is cross section, guide plate 5 be shaped as " air-foil of [" tee section, circular arc plate aerofoil profile or veneer shape, or be air-foil, circular arc plate aerofoil profile or the veneer shape of " Z " tee section, or be air-foil, circular arc plate aerofoil profile or the veneer shape of " work " tee section.In accompanying drawing 2, provided cross section for " situation of the veneer shape guide plate 5 of [" shape shape, particularly: air-foil refers to the straight plate veneer shape that inner narrow outer end is wide, circular arc plate aerofoil profile refers to that the plate shape of guide plate 5 is arc.
Through test, the guide plate 5 of above-mentioned various shapes all can reach following effect: the deflection air-flow pivot of maneuver that the impeller forming from wheel hub 7 and blade 2 is flowed out to, the kinetic energy of deflection air-flow is transformed into static energy simultaneously, improve static pressure efficiency, and make the highest total pressure efficiency operating point of blower fan and the highest static pressure efficiency operating point closer to each other.
In order to promote water conservancy diversion effect, in the outer end of wheel hub 7, be provided with the fair water cone 1 of arc.
In order to promote the convenience of whole machine installation, in the present embodiment, on the outer wall of air duct 3, be provided with a plurality of that extend vertically, with the mounting plate 4 of attachment hole.For the ease of lifting, shift, at the top of air duct 3, a plurality of hangers can also be set.

Claims (3)

1. a reversible axial flow fan, comprise columnar air duct (3), a plurality of guide plates (5) by circumferential equal angles interval in air duct (3) are provided with drive motor (6), the axis conllinear of the axis of described drive motor (6) and air duct (3), the support of the inner of guide plate (5) and drive motor (6) is affixed, the inwall of outer end and air duct (3) is affixed; On the output shaft of drive motor (6), be provided with wheel hub (7), on wheel hub (7), be provided with a plurality of blades (2); It is characterized in that: the sectional shape that the plane that being shaped as of described guide plate (5) be take perpendicular to air duct (3) axis is cross section is " air-foil of [" shape, circular arc plate aerofoil profile or veneer shape, or air-foil, circular arc plate aerofoil profile or veneer shape that the sectional shape that the plane of take perpendicular to air duct (3) axis is cross section is " Z " shape, or the plane of take perpendicular to air duct (3) the axis sectional shape that is cross section be " work " shape air-foil, circular arc plate aerofoil profile or veneer shape.
2. reversible axial flow fan as claimed in claim 1, it is characterized in that: on the upper edge of wheel hub (7), circumferentially equal angles is interval with a plurality of slots, in the inner of blade (2), be provided with the petiole mutually suitable with slot shape, petiole inserts in slot also affixed by screw.
3. reversible axial flow fan as claimed in claim 1, is characterized in that: on the outer wall of air duct (3), be provided with a plurality of that extend vertically, with the mounting plate (4) of attachment hole.
CN201420290803.0U 2014-05-30 2014-05-30 Reversible axial flow fan Expired - Fee Related CN203906397U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420290803.0U CN203906397U (en) 2014-05-30 2014-05-30 Reversible axial flow fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420290803.0U CN203906397U (en) 2014-05-30 2014-05-30 Reversible axial flow fan

Publications (1)

Publication Number Publication Date
CN203906397U true CN203906397U (en) 2014-10-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420290803.0U Expired - Fee Related CN203906397U (en) 2014-05-30 2014-05-30 Reversible axial flow fan

Country Status (1)

Country Link
CN (1) CN203906397U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104564842A (en) * 2015-01-29 2015-04-29 苏莫明 Guide device of bidirectional reversible axial-flow fan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104564842A (en) * 2015-01-29 2015-04-29 苏莫明 Guide device of bidirectional reversible axial-flow fan
CN104564842B (en) * 2015-01-29 2017-01-18 苏莫明 Guide device of bidirectional reversible axial-flow fan

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141029

Termination date: 20190530