KR20190041671A - Fan Device for Cooling Tower - Google Patents

Abstract

The present invention provides a fan device for a cooling tower. The fan device for a cooling tower has a wing connected to a hub and specially formed and also has a connection structure of the wing, which is specially formed. So, the fan device for a cooling tower, of a special shape, has simple composition and can be easily manufactured at low manufacturing costs. Also, the fan device for a cooling tower can be simply and rapidly assembled and enables a user to safely and conveniently use the fan device for a long time by improving durability. To achieve the purpose of the present invention, the fan device for a cooling tower basically comprises: multiple wings (100) installed in a fan stack (12) of a cooling tower (10); a shaft (200) in which one end is connected to the wing (100); the hub (300) having a mounting groove (310) formed at constant intervals, wherein the other end of the shaft (200) connected to the wing (100) is installed on the mounting groove (310) and a bolt insertion hole (320) is formed on both sides of the mounting groove (310); and a clamp (400) fixing the wing (100) to the hub by being coupled by a bolt (410) while the clamp (400) covers the other end of the shaft (200) installed in the mounting groove (310) of the hub (300).

Description

Fan Device for Cooling Tower < RTI ID = 0.0 >

The present invention relates to a fan apparatus for a cooling tower, and more particularly, to a fan apparatus for a cooling tower, which is capable of specifically forming blades coupled to a hub, The present invention relates to a fan apparatus of a cooling tower that can be easily and quickly assembled, is robustly assembled, has a reliable operation state at the time of use, has increased durability, and is free from damage or breakdown, so that it can be safely and conveniently used for a long time.

Generally, the cooling tower is a kind of heat exchanger that cools the cooling water by bringing the cooling water used in the condenser of the refrigerator into contact with outdoor air again for use.

That is, when the cooling tower is brought into contact with the air that has been heat-exchanged in the refrigerator, the heat exchanger, or the conventional air conditioning system, the cooling water is partially evaporated and the latent heat necessary for evaporation is taken away, 1, the cooling tower 10 is mainly composed of a tower main body (not shown). The cooling tower 10 includes a main body 11 and a fan stack 12. A fan unit having a blade 30 rotated by the drive motor 20 is installed inside the fan stack 12, The motor 20 for rotating the vane 30 of the fan unit is installed at various positions on the upper side of the cooling tower 10.

The cooling tower 10 configured as described above drives the drive motor 20 and rotates the blade 30 provided in the fan unit through the rotation shaft by the rotation force generated by the drive motor 20, The temperature inside the cooling tower 10 is lowered.

As shown in FIGS. 2 and 3, the conventional fan device includes a plurality of blades 30, a plurality of shafts 40 and a hub 50, do.

The plurality of blades 30 are installed on one side of the shaft 40 and the other side of the shaft 40 is installed on the hub 50 so as to be separated and assembled.

In order to do so, the hub 50 is provided with a mounting groove 51, and the other side end of the shaft 40 to which the blade 30 is coupled is seated. Then, the upper surface of the shaft 40 is covered with the clamp 60, ) Is fastened and fixed,

The diameter of the shaft 40 is larger than the diameter of the shaft 40 at the end of the shaft 40 so that the shaft 40 can not escape from the mounting groove 51 and the clamp 60 due to the centrifugal force acting upon rotation of the vane 30. [ The large engaging portion 41 is formed.

However, this configuration is a process in which the blade 30 is rotated at a low speed or a high speed according to the temperature of the cooling water, that is, a change in speed is continuously repeated. As a result, the inner surface of the engagement portion 41 is worn out There has been a serious problem that this portion is broken due to the occurrence of a distance or an impact, and the shaft 40 may be dislocated and the blade 30 may be detached as a result.

Meanwhile, the vane 30 may be formed of metal, but it is often made of plastic because it is heavy and requires a lot of time because of its heavy manufacturing work and is expensive. In this case, However, this is because when the blade 30 is continuously rotated at a low speed or at a high speed, the adhesive portion is weakened or the heat exchange occurs between the rainwater and the cooling water. The adhesive portion is weakened due to moisture, and the wing 30 winks upward and downward, failing to fulfill its function.

In this way, the anti-friction cap 31 prevents the blade 30 from moving up and down. However, in this case, the anti-friction of the air by the anti- The noise generated in the cooling tower 10 is very large and the efficiency is greatly deteriorated, so that the power loss of the cooling tower 10 is large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a wing structure for a vehicle, Provides a fan unit of a special type of cooling tower that can be easily and quickly assembled, has a reliable assembled state, is reliable in operation, increases durability, and is free from damage or breakdown, so that it can be used safely and conveniently for a long time The purpose of this is to do.

According to an aspect of the present invention, there is provided a fan apparatus for a cooling tower, comprising: a plurality of blades installed in a fan stack of a cooling tower;

A shaft to which one end is coupled to the wing,

A hub having a mounting groove formed at an equal interval and having bolt insertion holes formed on both sides of the mounting groove,

And a clamp for fastening the wing to the hub by being bolted to cover the other end of the shaft mounted on the mounting groove of the hub,

At least one locking protrusion protruding inward is formed on the inner surface of the mounting groove,

 At least one engaging groove is formed at the other end of the shaft coupled to the vane,

The shaft is prevented from being damaged even when the blade is continuously rotated at a low speed and at a high speed due to an increase in the coupling force by engaging the engagement groove of the shaft with the engagement protrusion of the mounting groove when the wing is installed on the hub.

The fan unit of the cooling tower of the present invention can easily and quickly fixedly install the blades, and when the fan unit is operated after the installation, the engagement grooves formed on the inner surface of the shaft, The coupling force is maximized and the wing is rotated at a low or high speed according to the temperature of the cooling water. That is, even if a strong rotation shock and centrifugal force occur, The shaft and the wing are completely prevented from being broken, as well as being not loosened.

In addition, the present invention adopts injection molding of the wings as a single body with a plastic material, which is less expensive than adopting a metal wing, is easy to manufacture, requires less time to manufacture and is economical,

The wings are made of plastic material, but they are not separated into upper and lower parts, and are not attached with an adhesive. As a result, the adhesive portion of the wing is weakened during use and the heat exchange of rainwater or cooling water The adhesive portion is weakened due to the generated water, so that the wing is re-opened upward and downward, so that various problems such as failure to fulfill its function are not caused at all.

In addition, since it is not necessary to connect the anti-tip cap to the blade end, the anti-friction of the air due to the anti- The flow is not good, the noise generated in the cooling tower is very large, the efficiency is greatly deteriorated, and conventional problems such as a large power loss of the cooling tower are completely prevented.

On the other hand, according to the present invention, since an angle display scale is formed on the outer surface of the clamp and a " 0 " point is displayed on the shaft surface, the angles of the plurality of wings mounted on the hub It is very convenient to adjust the angle of the wings easily in order to increase the cooling efficiency during use as well as to be adjusted to be constantly consistent.

As a result, the present invention is simple and easy to manufacture, easy to assemble, quick and easy to assemble, reliable in its assembled state, reliable in operation and durability, and free from damage or breakdown, And it is clear that it is a very breakthrough invention that can be used safely and conveniently for a long time.

Fig. 1 is a schematic view of a general hot-tub tower.
FIG. 2 and FIG. 4 are structural diagrams of a fan apparatus of a conventional cooling tower,
Figure 2 is an exploded view.
3 is an assembled state diagram.
Fig. 4 is another configuration diagram of a conventional wing; Fig.
5 to 7 are diagrams of a configuration of a fan apparatus of a cooling tower according to the present invention,
5 is an exploded view.
6 is an assembled state diagram.
7 is a partially cutaway side view of the assembled state.
FIG. 8 is another configuration diagram of the present invention; FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. It is to be understood that the exemplary embodiments described below are provided for illustrative purposes only, and that the present invention may be embodied with various modifications and alterations. In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention. In addition, the attached drawings are not drawn to scale in order to facilitate understanding of the invention, but the dimensions of some of the components may be exaggerated.

The fan unit of the cooling tower of the present invention is a fan driven type in which the fan pulley and a motor driven by connecting a drive belt to a motor shaft are driven by a fan driven type. However, the present invention is not limited to this, It should be noted in advance that the direct-drive type in which the axes are directly coupled can also be constructed.

The fan unit of the cooling tower of the present invention constructed in various ways as described above is basically installed in the fan stack 12 of the cooling tower 10 as shown in FIGS. 1 and 5 to 7 A plurality of blades 100,

A shaft 200 coupled to one end of the vane 100,

A hub 300 having mounting holes 310 formed at regular intervals and having bolt insertion holes 320 formed on both sides of the mounting groove 310 to which the other end of the shaft 200 coupled to the vane 100 is mounted,

And a clamp 400 for fastening the wing 100 to the hub by fastening the bolts 410 while covering the other end of the shaft 200 mounted on the mounting groove 310 of the hub 300,

Most notably, at least one locking protrusion 311 protruding inward is formed on the inner surface of the mounting groove 310,

 At least one or more engaging grooves 210 are formed at the other end of the shaft 200 coupled to the vane 100, to which the engaging protrusion 311 is coupled,

When the wing 100 is installed on the hub 300, the engaging groove 210 of the shaft 200 is engaged with the engaging projection 311 of the mounting groove 310 so that the wing 100 can be continuously rotated at low speed and high speed The shaft 200 is prevented from being damaged even during repetition, so that the life is prolonged.

The wing (100) adopted in the fan apparatus of the cooling tower of the present invention is injection molded into a single piece of plastic material.

The wing 100 is assembled by fastening means such as a bolt after one end of the shaft 200 is coupled with the wing 100. The wing 100 may be formed of plastic in order to lighten the weight, Is sufficiently resistant to rotation shock and vibration transmitted from the wing 100. This is because it is required to be formed of a metal material and that the wing 100 is easily installed and replaced.

Meanwhile, as shown in FIG. 8, the angle indicator scale 220 is formed on the outer surface of the other end of the shaft 200 coupled to the vane 100, &Quot; point 420,

Or on the contrary, a " 0 " point is formed on the outer surface of the other end of the shaft 200,

The angle of the wing 100 is adjusted by adjusting the angle of the wing 100 on the outer surface of the clamp 400 so that the fixing angle of the wing 100 can be easily adjusted without the need of a separate angle adjusting device.

This is to adjust the angle of the vane 100 to increase the cooling efficiency as well as to constantly match the angles of the plurality of vanes 100 mounted on the hub 300,

For example, when the other end of the shaft 200 coupled to the vane 100 is fixed to the mounting groove 310 of the hub 300, when the vanes 100 are horizontally aligned, When the center point of the wing 100 is matched with the " 0 " point 420, the wings 100 are all horizontally aligned at the same angle,

When the angle of the wing 100 is adjusted, it is possible to easily adjust the angle of the wing 100 without the need of a separate angle adjusting device by moving the '0' will be.

Hereinafter, the assembling and operating state of the cooling tower fan apparatus of the present invention constructed as above will be described.

In the present invention, at least one locking protrusion 311 protruding inward is formed on the inner surface of the mounting groove 310 of the hub 300,

 Since at least one engaging groove 210 is formed at the other end of the shaft 200 coupled to the vane 100 and the engaging protrusion 311 is engaged with the outer circumference of the shaft 200, If you want to install

The engaging groove 210 of the shaft 200 to which the wing is coupled is engaged with the engaging projection 311 of the mounting groove 310,

The other end of the shaft 200 mounted on the mounting groove 310 of the hub 300 is covered with the clamp 400 and the clamp 400 is fastened to the hub 300 using the bolts 410. [ The wing 100 can be fixed to the hub 300 very easily and quickly.

In this case, before the clamp 400 is tightly tightened with the bolts 410, the angles of the blades 100 are all aligned and then the bolts 410 are tightly tightened. This is because the installation angle of the blades 100 is The fan 100 may be severely damaged due to a rotational deviation caused by the rotation of the blade 100. This may cause serious problems in the entire fan unit as well as the air flow is poor and the cooling efficiency is greatly reduced and a large noise is generated .

When the fan device is operated after the blade 100 is fixed and installed in a simple and quick manner as described above, the blade 100 is coupled to the engagement protrusion 311 formed on the inner surface of the mounting groove 310 of the hub 300 Since the coupling structure in which the engagement groove 210 at the other end of the shaft 200 is engaged is adopted, a process of maximizing the binding force and rotating the blade 100 at low or high speed according to the temperature of the cooling water, Even if a strong rotation shock and a centrifugal force are generated, the binding portion is not worn and loosened, and the phenomenon that the shaft and the blade are separated from each other is completely prevented.

Therefore, if the fan unit of the cooling tower of the present invention is used, the lifetime is long and there is no phenomenon of occurrence of a fault, so that it can be used safely and conveniently for a long time.

Meanwhile, according to the present invention, since the wing (100) is formed by injection molding of a single piece of plastic material, it is economical because it is less in weight than a metal wing, is easy to manufacture,

The wing 100 is manufactured by using a plastic material, but the wing 100 is separated from the upper and lower portions and attached thereto by an adhesive, so that the adhesive portion of the wing is weakened or weakened during use, There is no problem that the adhesive portion is weakened due to moisture generated during heat exchange and the wing 100 is re-opened upward and downward to fail to fulfill its function.

In addition, since there is no need to connect the prevention cap to the blade end portion to prevent the blade 100 from spreading upwardly and downwardly as in the conventional case, friction resistance of the air due to the prevention cap at the time of high- The flow is not good, the noise generated in the cooling tower is very large, the efficiency is greatly deteriorated, and conventional problems such as a large power loss of the cooling tower are completely prevented.

Meanwhile, in the present invention, an angle indicator scale 220 is formed on the outer surface of the shaft 200, and since the "0" point 420 is displayed on the clamp 400, The angle of the plurality of vanes 100 mounted on the hub 300 can be adjusted to be constantly matched by using the "0" point 420 and the angle of the vane 100 can be easily adjusted It is very convenient because it can be adjusted.

Although the present invention has been described with reference to the exemplary embodiments and the drawings, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

10: cooling tower 12: fan stack
100: wing 200: shaft
210: engaging groove 220: angle indication scale
300: hub 310: mounting groove
311: locking protrusion 320: bolt insertion hole
400: Clamp 410: Bolt
420: "0" point

Claims (3)

Is installed inside the fan stack (12) of the cooling tower (10)
A plurality of blades 100,
A shaft 200 coupled to one end of the vane 100,
A hub 300 having mounting holes 310 formed at regular intervals and having bolt insertion holes 320 formed on both sides of the mounting groove 310 to which the other end of the shaft 200 coupled to the vane 100 is mounted,
And a clamp 400 for fastening the wing 100 to the hub by fastening the bolts 410 while covering the other end of the shaft 200 mounted on the mounting groove 310 of the hub 300,
At least one locking protrusion (311) protruding inward is formed on the inner surface of the mounting groove (310)
At least one or more engaging grooves 210 are formed at the other end of the shaft 200 coupled to the vane 100, to which the engaging protrusion 311 is coupled,
When the wing 100 is installed on the hub 300, the engaging groove 210 of the shaft 200 is engaged with the engaging projection 311 of the mounting groove 310 so that the wing 100 can be continuously rotated at low speed and high speed And the shaft (200) is prevented from being damaged even during repetition so that the life of the fan (200) is prolonged. The method according to claim 1,
Characterized in that the vane (100) is injection molded as a single piece of plastic material. The method according to claim 1,
An angle indicator scale 220 is formed on the outer surface of the other end of the shaft 200 coupled to the vane 100 and a "0" point 420 is formed on the outer surface of the clamp 400,
Or on the contrary, a " 0 " point is formed on the outer surface of the other end of the shaft 200,
An angle indicating scale is formed on the outer surface of the clamp 400,
Wherein the fixing angle of the blade (100) is easily adjusted without the need of a separate angle adjusting device when adjusting the angle of the blade (100).

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