KR101747598B1

KR101747598B1 - Method for assembling guide vane of axial flow blower or axial fan

Info

Publication number: KR101747598B1
Application number: KR1020160027522A
Authority: KR
Inventors: 김근배
Original assignee: 하이에어코리아 주식회사
Priority date: 2016-03-08
Filing date: 2016-03-08
Publication date: 2017-06-27

Abstract

In the present invention, a plurality of blades, such as fan blades, are installed in the radial direction of the shaft so that the gas flows in the axial direction. The guide blades and the motor for rotationally driving the blades are fixed to the inside of the axial flow tube, The present invention relates to a method for assembling a guide vane of an axial flow fan or an axial flow fan comprising a bracket having a circular rim shape and a supporter for fixing the bracket inside the axial flow tube, Stage 1; And fixing the guide vane to the supporter fixed to the inside of the axial flow tube, wherein the bracket is positioned on the inner concentric circle of the axial flow tube, wherein a plurality of supporters are radially coupled to the outer circumference of the bracket, And the end portion of the supporter is coupled to the inner periphery of the axial flow tube.
As described above, in the method of assembling the guide vanes of the axial flow fan or the axial flow fan of the present invention, since the supporter is welded to the bracket and the axial flow pipe, and then the guide wings of light material such as nonferrous metal are fixed to the supporter by bolts, Or an axial fan can be manufactured, and there is a remarkable effect such as improvement in assemblability, reduction in production cost, and increase in efficiency.

Description

Technical Field [0001] The present invention relates to a method for assembling an axial flow blower or an axial flow fan,

The present invention relates to a method of assembling a guide vane of an axial flow blower in which a plurality of blades are installed in a radial direction of a shaft such as fan blades so that the gas flows in the axial direction, The present invention relates to a method of assembling a guide vane of an axial flow fan or an axial flow fan in which efficiency is greatly increased by fixing a groove of a guide wing to a supporter by bolt fastening.

Generally, the axial flow fan or the axial flow fan is provided with a plurality of blades such as fan blades in the radial direction of the shaft to allow the gas to flow in the axial direction, which is more suitable for high-speed operation than other blowers or fans and can be directly connected to the motor. It can be easily installed on the way.

It is used for ventilation, ventilation, flue gas, pressurized ventilation of boiler, and the like suitable for such low wind pressure large capacity.

In the prior art of the axial flow fan or the axial flow fan, a substantially cylindrical blowing tube having an inner surface in Patent Publication No. 2014-0066715, wherein a blower rotor is constituted, and the blower rotor is connected to the center axis of a cylindrical blowing tube And a plurality of guide blades disposed downstream of the blower rotor, wherein the plurality of guide blades are disposed at a proximal end of the central structure And a blower stator fixedly attached to an inner surface of the blowing tube at a distal end thereof such that the guide blades and the central structure are coupled to the blowing tube, A plurality of individual stator segments coupled together; Wherein each of the guide blades is configured as an integral unit with one of the stator segments.

Another prior art is disclosed in Laid-Open Publication No. 2012-0095905, which comprises a substantially cylindrical blower pipe, centered on a central axis, having an inner surface and an outer surface, the blower pipe comprising a fan rotor The fan rotor having a rotor shaft substantially coinciding with a central axis of the cylindrical blowing tube, the blowing tube being bent to form a cylindrical blowing pipe, and then being joined to opposite opposite side edges of the plate material Wherein the cylindrical blowing tube has two opposite end portions and the blowing tube is substantially perpendicular to the outer surface of the blowing tube at one end to form a mounting flange provided with means for mounting the axial flow fan to the piping system, , Wherein the plate material or plates included in the blowing pipe are made of a rust prevention metal plate or And an outer surface and an inner surface of the blowing pipe are coated with a rust preventive material, and the edge of the plate is soldered to the rust preventive filler in parallel with each other without overlapping.

However, since the guide vane (stator) mounted on the conventional axial flow fan or the axial flow fan is made of a nonferrous metal or plastic such as aluminum and the supporter for fixing the guide vane is made of steel or the like, It is difficult to weld them together.

The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide a guide vane of various materials, wherein a groove capable of being seated in a supporter is formed in the guide vane, And to provide an axial flow fan or an axial flow fan which can easily fasten guide blades and supporters of different materials and greatly increase the efficiency.

In the present invention, a plurality of blades, such as fan blades, are installed in the radial direction of the shafts so that the gas flows in the axial direction. In the axial flow tube in which the inner hollow is formed, a circular rim shape And a supporter for fixing the bracket to the inside of the axial flow tube, the method comprising: a step of fixing the supporter and the bracket to the inside of the axial flow tube; And fixing the guide vane to the supporter fixed to the inside of the axial flow tube, wherein the bracket is positioned on the inner concentric circle of the axial flow tube, wherein a plurality of supporters are radially coupled to the outer circumference of the bracket, And the end portion of the supporter is coupled to the inner peripheral edge of the axial flow tube.

As described above, in the method of assembling the guide vanes of the axial flow fan or the axial flow fan of the present invention, since the supporter is welded to the bracket and the axial flow pipe, and then the guide wings of light material such as nonferrous metal are fixed to the supporter by bolts, Or an axial fan can be manufactured, and there is a remarkable effect such as improvement in assemblability, reduction in production cost, and increase in efficiency.

1 is an outline view of an axial flow blower installed in an axial flow pipe according to the present invention;
FIG. 2 is a schematic view of an axial flow fan installed in an axial flow pipe according to the present invention, in which a rotary vane is not mounted.
Fig. 3 is an outline view of a supporter and a guide vane fastening state of the axial flow blower according to the present invention; Fig.
4 is a schematic view showing a supporter of an axial flow blower according to the present invention.
5 is a schematic view showing a front portion of an axial blower guide vane according to the present invention.
6 is a schematic view showing a rear portion of an axial flow fan guide vane according to the present invention.

A plurality of blades such as fan blades are installed in the radial direction of the shaft so as to allow the gas to flow in the axial direction so that the guide vanes 130 and the rotary vanes 160 are rotated inside the axial flow tube 200 in which the inner hollow is formed And a supporter 120 for fixing the bracket 110 to the inside of the axial flow pipe 200. The guide blades 110 of the axial flow fan or the axial flow fan, The method comprising: a first step of securing the supporter 120 and the bracket 110 in the axial flow pipe 200; And fixing the guide vane 130 to the supporter 120 fixed to the inside of the axial flow pipe 200. The bracket 110 is positioned on the inner concentric circle of the axial flow pipe 200, A plurality of supporters 120 are radially coupled to an outer periphery of the bracket 110 and an end of the supporter 120 is coupled to an inner periphery of the axial flow pipe 200.

And a seating groove 132 is formed on one side of the guide vane 130 in the longitudinal direction.

Particularly, the guide vane 130 is formed so as to have a smaller width in the longitudinal direction of the other end from one end, and a seating groove 132 in which the supporter 120 can be seated in the longitudinal direction is formed on one surface Feature.

The guide vane 130 and the supporter 120 are fixed by bolting to each other when the seating groove 132 of the guide vane 130 is seated on the supporter 120.

The method of assembling the guide vanes of the axial flow fan or the axial flow fan of the present invention will be described in detail with reference to the accompanying drawings.

The axial flow blower 100 will be described as an example.

FIG. 1 is a schematic view of an axial flow fan installed in an axial flow pipe according to the present invention, FIG. 2 is an outline view of a axial flow fan installed in an axial flow pipe according to the present invention, Fig. 3 is a schematic view of a state in which the supporter of the blower and the guide wing are engaged.

Generally, the axial flow blower 100 has a plurality of blades, such as fan blades, installed in the radial direction of the shaft to allow the gas to flow in the axial direction. The guide blades 130 are disposed inside the axial flow pipe 200, And a supporter 120 for fixing the bracket 110 to the inside of the axial flow pipe 200. The bracket 110 has a circular rim shape for fixing the motor 140 rotating the rotary blades 160, .

The rotary vane 160 is mounted on a rotary shaft 150 that rotates in the axial flow tube 200 and rotates together with the rotary shaft 150 to flow the gas. And is supported by the supporter 120 fixed to the rear side of the rotary vane 160 so that when the gas formed by the rotary vane 160 flows backward, .

The method of assembling the guide vanes of the axial flow fan or the axial flow fan according to the present invention includes the steps of fixing the supporter 120 and the bracket 110 to the axial flow pipe 200 and fixing the bracket 110 to the inside of the axial flow pipe 200 And fixing the guide vane 130 to the supporter 120.

Particularly, the bracket 110 is located on the inner concentric circle of the axial flow tube 200 in the form of a circular rim, and a plurality of supporters 120 having a long plate shape on the outer periphery of the bracket 110 are radially And the end of the supporter 120 is coupled to the inner circumference of the axial flow tube 200.

FIG. 4 is a schematic view showing a supporter of an axial blower according to the present invention, FIG. 5 is an outline view showing a front portion of an axial blower guide vane according to the present invention, and FIG. 6 is a schematic view showing a rear portion of an axial blower guide vane according to the present invention to be.

As shown in FIG. 6, the guide vane 130 used in the axial flow fan of the present invention is formed with a seating groove 132 in its longitudinal direction.

As one embodiment of the shape of the guide vane 130, the gas formed by the rotary vane 160 at the rear of the rotary vane 160 is formed to have a smaller width in the longitudinal direction of the other end so as to smoothly flow backward. And is formed into a streamlined curved surface in the width direction.

At this time, since the curvature of the front surface of the guide vane 130 is formed to be larger than the curvature of the rear surface, flow can be smoothly continued when the gas formed by the guide vane 130 moves backward.

Particularly, on the rear surface of the guide vane 130, there is formed a seating groove 132 which can be seated on the supporter 120 in the longitudinal direction, and a bolt is fastened to the seating groove 132 of the guide vane 130 A plurality of bolt holes 131 are formed.

The shape of the guide vane 130 can be variously manufactured and shaped according to the inner shape of the axial flow tube 200, the relationship with the rotary vane 160, or the working environment.

4, the supporter 120 is formed in a plate shape that is seated in the seating groove 132 of the guide vane 130. The supporter 120 includes a bolt hole 131 formed in the seating groove 132, A hole 121 is formed.

When the seating groove 132 of the guide vane 130 is seated on the supporter 120, the bolt hole 131 formed in the seating groove 132 of the guide vane 130 and the bolt hole 131 formed in the supporter 120 The guide vane 130 and the supporter 120 can be fastened by inserting the bolts.

That is, the axial flow pipe 200 is made of steel, and the supporter 120 installed in the axial flow pipe 200 is made of the same material as the axial flow pipe 200 and can be easily fastened to each other by welding do.

However, since the guide vane 130 is preferably made of lightweight aluminum to improve the ease of production and efficiency, the steel supporter 110 and the guide vane 130 made of aluminum are easy to weld to each other .

The guide vane 130 may be made of various materials other than aluminum, and synthetic resin may be used.

When the guide vane 130 and the supporter 120 are bolted together, the guide vane 130 and the supporter 120 are bolted together. When the bolt is fastened, a step is formed due to the thickness of the supporter 120 and the guide vane 130, When the rotary vane 160 rotates, a resistance is generated in the air.

Accordingly, as in the present invention, the seating groove 132 formed on the rear surface of the guide vane 130 is seated on the supporter 120 so that no step is formed between the supporter 120 and the guide vane 130, Respectively.

As described above, according to the present invention, the axial flow fan is described in detail as an example. The right of the present invention is not limited to the axial flow blower and the axial flow fan, but may be modified in various forms within the technical scope of the present invention .

100. Axial flow blower
110. Bracket
120. Supporter 121. Bolt hole
130. guide wing 131. bolt hole 132. seat groove
140. Motor
150. The rotating shaft
160. Rotating blades
200. Axial flow tube

Claims

A plurality of blades such as fan blades are installed in the radial direction of the shaft so as to allow the gas to flow in the axial direction so that the guide vanes 130 and the rotary vanes 160 are rotated inside the axial flow tube 200 in which the inner hollow is formed And a supporter 120 for fixing the bracket 110 to the inside of the axial flow pipe 200. The guide blades 110 of the axial flow fan or the axial flow fan, In the method,
Fixing the supporter (120) and the bracket (110) in the axial flow pipe (200); And fixing the guide vane (130) to the supporter (120) fixed to the inside of the axial flow pipe (200)
A plurality of supporters 120 are radially coupled to an outer circumference of the bracket 110 and a plurality of supporters 120 are radially coupled to the outer circumference of the bracket 110, The end portion is coupled to the inner peripheral edge of the axial flow tube 200,
The guide vane 130 is formed to have a smaller width in the longitudinal direction of the other end than a curved surface in the width direction. The curvature of the front surface of the guide vane 130 is larger than the curvature of the rear surface So that when the gas formed by the guide vane 130 advances backward, the flow smoothly continues,
A seating groove 132 is formed in the rear surface of the guide vane 130 so that the supporter 120 can be seated in the longitudinal direction of the guide vane 130. In the seating groove 132, A bolt hole 131 is formed,
The supporter 120 is formed in a plate shape to be seated in the seating groove 132 of the guide vane 130. The upper and lower surfaces of the supporter 120 have bolt holes 121 corresponding to the bolt holes 131 formed in the seating groove 132 Is formed,
When the seating groove 132 of the guide vane 130 is seated on the supporter 120, the bolt hole 131 formed in the seating groove 132 of the guide vane 130 and the bolt hole 121 formed in the supporter 120 So that the guide vane 130 and the supporter 120 can be fastened by inserting the bolt,
The axial flow pipe 200 is made of steel and the supporter 120 mounted in the axial flow pipe 200 is made of the same material as the axial flow pipe 200 and is easily welded together,
Wherein the guide vane (130) is made of light-weight aluminum to improve productivity and assemblability.

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