KR20150028597A - Exhaust fan system having dependent centrifugal impeller unit - Google Patents

Abstract

A ventilation system having a slave centrifugal impeller unit is disclosed. The air blowing system includes a blower installed only in a first space, which is one of an intake part and an exhaust part; And a slave centrifugal impeller unit for transmitting a rotational force generated by the air flow formed by the operation of the blower to a second space, which is another one of the intake unit and the exhaust unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an exhaust fan system having a centrifugal impeller unit,

The present invention relates to a ventilation system having a slave centrifugal impeller unit.

Axial-flow fans are widely used in various fields such as general machinery industry, shipbuilding / offshore field, and onshore plant.

The axial flow fan is characterized in that the flow direction of the air is parallel to the rotation axis of the fan, and the types thereof include a propeller fan, a tubular axial flow fan, and a vane-type axial flow fan.

Fig. 1 shows an example of a configuration of a blowing system according to the prior art.

As shown in FIG. 1, the ventilation system according to the related art includes an intake unit having an intake air blower and an exhaust unit having an exhaust blower.

The intake side blower is connected to the intake side rotary shaft 115 and the intake side rotary shaft 115 which are connected to the intake fan motor 110 and the intake fan motor 110 to provide a rotary force, And an intake impeller 120 for generating an airflow by being rotated in conjunction with the intake air.

Similarly, the exhaust-side blower is connected to the exhaust-side rotary shaft 145 and the exhaust-side rotary shaft 145, which are connected to the exhaust-side fan motor 140 and the exhaust-side fan motor 140, And an exhaust impeller 150 for generating an airflow by being rotated in conjunction with the rotation of the impeller 150.

The intake-side impeller 120 and the exhaust-side impeller 150 are operated to rotate in different directions to flow the outside air into the inside space or to discharge the inside air into the outside space.

As described above, in the ventilation system according to the related art, in order to cool a specific space (for example, an office or the like) or to circulate air, an intake fan and an exhaust fan must be separately provided, and power is separately supplied to each fan There is a problem.

An object of the present invention is to provide an air blowing system having a slave centrifugal impeller unit capable of minimizing installation cost and power consumption of an air blowing system by disposing a blower only on either one of an intake unit and an exhaust unit.

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention, there is provided an air blowing system, comprising: a blower installed in a first space, which is one of an air intake unit and an air exhaust unit; And a slave centrifugal impeller unit for transmitting a rotational force generated by the airflow formed by the operation of the blower to a second space, which is another one of the intake unit and the exhaust unit.

The slave centrifugal impeller unit includes a first centrifugal impeller installed in the first space, a second centrifugal impeller installed in the second space, and a second centrifugal impeller connected to the first centrifugal impeller and the second centrifugal impeller And may include a power transmission shaft. Here, the first centrifugal impeller may be rotated due to the air flow formed by the operation of the blower.

The power transmission shaft may be installed to penetrate a partition wall partitioning the first space and the second space.

The open area of the partition wall through which the power transmission shaft passes may be sealed by a sealing member.

The power transmission shaft may transmit a rotational force to rotate the first centrifugal impeller and the second centrifugal impeller in the same rotational direction.

An irreversible lock may be provided on one side of the power transmitting shaft so that rotational force generated by rotation of the second centrifugal impeller is not transmitted to the first space.

The first centrifugal impeller and the second centrifugal impeller may be formed such that at least one of an impeller length, a blade angle, and an impeller shape is different.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the embodiment of the present invention, there is an effect that the installation cost and power consumption of the ventilation system can be minimized by disposing the blower only on either one of the intake part and the exhaust part.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a configuration example of a ventilation system according to the prior art; Fig.
2 is a view showing a configuration example of a ventilation system according to an embodiment of the present invention;
3 is a view showing the shape of a centrifugal impeller according to embodiments of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In addition, the terms "part," "unit," "module," "device," and the like described in the specification mean units for processing at least one function or operation, Lt; / RTI >

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It is to be understood that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 2 is a view showing a configuration example of a blowing system according to an embodiment of the present invention, and FIG. 3 is a view showing the shape of a centrifugal impeller according to embodiments of the present invention.

The ventilation system according to the present embodiment is constituted by the intake part 200 and the exhaust part 205 separately for smooth air flow and the blower is disposed only at one side of the intake part 200 and the exhaust part 205.

2 illustrates a case where a blower is disposed only in the intake unit 200 and will be described with reference to this specification. However, the same effect can be obtained even if the blower is disposed only in the exhaust unit 205, Which can be easily understood.

2, the intake unit 200 of the blowing system includes a fan motor 210, a rotary shaft 215 connected to the fan motor 210 to provide a rotary force, and a rotary shaft 215 connected to the rotary shaft 215, A blower including a main impeller 220 for generating an airflow for allowing outside air to flow by being rotated in conjunction with rotation is disposed.

When the airflow is generated by the blower, the slave centrifugal impeller unit is driven to generate airflow in the exhaust unit 205 not provided with the blower.

The slave centrifugal impeller unit includes an intake side centrifugal impeller 230 installed on the intake part 200, an exhaust side centrifugal impeller 240 installed on the exhaust part 200, an intake side centrifugal impeller 230, And a power transmission shaft 235 for connecting the side centrifugal impeller 240 to each other.

2, an intake-side centrifugal impeller 230 is disposed at a position spaced apart from the main impeller 220, an intake-side centrifugal impeller 230 is connected to a power transmission shaft Side centrifugal impeller 240 disposed in the exhaust part 205 through the exhaust-side centrifugal impeller 240 and the exhaust-

The power transmission shaft 235 is installed to penetrate a partition wall separating the intake unit 200 and the exhaust unit 205 to provide rotational force from the intake unit 200 to the exhaust unit 205 as described later.

At this time, air can be introduced between the intake unit 200 and the exhaust unit 205 through a through region (i.e., an open region) in the partition formed to provide the power transmission shaft 235. The open area through which the power transmission shaft 235 passes through the partition wall may be sealed by a sealing member 250 so as to block the inflow of air between the intake unit 200 and the exhaust unit 205 .

The shapes of the intake-side centrifugal impeller 230 and the exhaust-side centrifugal impeller 240, which are interconnected through the power transmission shaft 235 and are respectively disposed in the intake unit 200 and the exhaust unit 205, Are illustrated.

That is, as shown in FIG. 3 (a), the intake-side centrifugal impeller 230 and the exhaust-side centrifugal impeller 240 are arranged such that several to several dozen blades 320 are equally spaced on the circumference A disk 310 is integrally attached to one side of the vanes 320 and a hub 315 for connecting the power transmission shaft 235 is formed at the center thereof.

Alternatively, the intake-side centrifugal impeller 230 and the exhaust-side centrifugal impeller 240 are formed to have a narrow width and a long length as illustrated in FIG. 3 (a) A plurality of blades 340 may be installed on the outer peripheral portion and a hub for connecting the power transmission shaft 235 may be formed at the center thereof.

3 (a) and 3 (b) are merely examples for explaining the structure of the inlet-side centrifugal impeller 230 and the exhaust-side centrifugal impeller 240, and it is needless to say that the structure of each impeller is not limited thereto . Therefore, it is a matter of course that the structure of each impeller according to the present embodiment can be adopted without any limitation in the structure for achieving the objects disclosed in this specification.

2, in the slave centrifugal impeller unit, when the intake-side centrifugal impeller 230 of the intake unit having the blower is rotated, the exhaust-side centrifugal impeller 240 of the exhaust unit in which the blower is not disposed also rotates in the same rotational direction As shown in Fig.

At this time, there may be a case where the exhaust-side centrifugal impeller 240 is rotated by the air stream naturally generated at the exhaust part 205 side.

In this case, in order to prevent a situation in which the intake-side centrifugal impeller 230 is rotated by the rotation of the exhaust-side centrifugal impeller 240, the rotational force transmitted from the intake unit 200 is transmitted to the exhaust unit 205 side An irreversible lock 255 may be formed on one side of the power transmitting shaft 235 so that the rotational force generated from the exhaust unit 205 is not transmitted to the intake unit 200. Since the structure and operation characteristics of the irreversible lock 255 are obvious to those skilled in the art, a detailed description thereof will be omitted.

The intake side centrifugal impeller 230 and the exhaust side centrifugal impeller 240 may be disposed to adjust at least one of an intake amount and an air flow rate of the intake and exhaust air in the intake unit 200 and the exhaust unit 205, It is of course also possible that one or more of the blade angle and the impeller length may be formed differently. Further, impellers having different shapes may be adopted as the inlet-side centrifugal impeller 230 and the exhaust-side centrifugal impeller 240, respectively.

Hereinafter, the operation of the ventilation system according to the present embodiment will be described with reference to FIG.

First, when the fan motor 210 starts to operate and the main impeller 220 is rotated, an air flow for introducing the outside air into the intake unit 200 and discharging the air into the internal space is formed, and the intake- Is rotated.

When the intake-side centrifugal impeller 230 is rotated, rotational force generated by the rotation of the intake-side centrifugal impeller 230 is transmitted to the exhaust-side centrifugal impeller 230 provided on the exhaust part 205 via the power transmission shaft 235 .

An air stream is formed in the exhaust part 205 by the rotation of the exhaust-side centrifugal impeller 240 corresponding to the rotational force transmitted from the intake part 200, air is introduced from the internal space by the formed air stream, do.

Here, at least one of the blade angle, the impeller length, and the impeller shape of the intake-side centrifugal impeller 230 and the exhaust-side centrifugal impeller 240 are formed differently, The amount of air to be exhausted, the airflow rate, and the like can be adjusted as described above.

As described above, the blowing system according to the present embodiment includes the slave centrifugal impeller unit, so that even when the blower is not provided in the exhaust unit 205, the power transmitted from the intake unit 200 (that is, the intake-side centrifugal impeller 230 ) Is transmitted to the exhaust part 205 to rotate the exhaust-side centrifugal impeller 240. This is because the same function is exhibited even when the blower is installed only on the exhaust part 205, and a description thereof will be omitted. However, the installation direction of the irreversible lock 255 may be different if the blower is installed only in the exhaust part 205.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

200: intake part 205: exhaust part
210: Fan motor 215:
220: Main impeller 230: Intake side centrifugal impeller
235: Power transmission shaft 240: Exhaust-side centrifugal impeller

Claims (7)

In the ventilation system,
A blower installed only in the first space, which is one of the intake part and the exhaust part; And
And a slave centrifugal impeller unit that transmits a rotational force generated by the airflow formed by the operation of the blower to a second space, which is another one of the intake unit and the exhaust unit. The method according to claim 1,
Wherein the slave centrifugal impeller unit comprises:
A first centrifugal impeller installed in the first space, a second centrifugal impeller installed in the second space, and a power transmission shaft connecting the first centrifugal impeller and the second centrifugal impeller,
Wherein the first centrifugal impeller is rotated due to the air flow formed by the operation of the blower. 3. The method of claim 2,
And the power transmission shaft is installed to penetrate a partition wall partitioning the first space and the second space. The method of claim 3,
And an open area of the partition wall through which the power transmission shaft passes is sealed by a sealing member. 3. The method of claim 2,
Wherein the power transmission shaft transmits a rotational force to rotate the first centrifugal impeller and the second centrifugal impeller in the same rotational direction. 3. The method of claim 2,
Wherein an irreversible lock is installed at one side of the power transmission shaft so that a rotational force due to rotation of the second centrifugal impeller is not transmitted to the first space. 3. The method of claim 2,
Wherein the first centrifugal impeller and the second centrifugal impeller are formed such that at least one of an impeller length, a blade angle, and an impeller shape is different.

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