KR101255738B1 - Induced fan of two impeller - Google Patents

Abstract

PURPOSE: A two-impeller guiding fan is provided to guide a current which is inhaled and discharged to a current rotating direction and to reduce noise generated in ventilation. CONSTITUTION: A two-impeller guiding fan comprises a blowing housing unit(30), a discharging muffler(20), and an outlet(10). The discharging muffler includes a discharging muffler casing, a discharging noise absorbing material, and a discharging noise perforated screen. The discharging muffler casing is formed into a cylinder which inside is penetrated. The discharging noise absorbing material is formed in the inner circumference of the discharging muffler casing.

Description

Induced fan of two impeller}

The present invention relates to a two-impeller manned fan, more specifically, CO₂, dust, dust, smoke, odor generated in the indoor space installed on the ceiling of a large indoor space, such as underground parking lot, warehouse, gymnasium, auditorium, factory, etc. Suction and discharge air flow guides are provided with suction and discharge air flow guides by forming suction holes in the suction and discharge silencers and suction and discharge air flow guides in the suction and discharge silencers. The present invention relates to a throw impeller draw fan that reduces noise while inducing discharge airflow.

In general, a jet fan (induction fan) that blows air is widely used to discharge CO₂, dust, dust, fumes, odors, and other pollutants generated in an enclosed space with poor inflow of air to the outside more quickly and effectively. have.

A general jet fan (manned fan) is a motor driven mounted inside a cylindrical housing after being attached to a ceiling, and the air introduced into the housing is rotated in the direction of rotation of the impeller by the rotation of an impeller configured on the motor shaft. It proceeds while causing vortex inside and is discharged through the nozzle.

Looking at this prior art jet fan,

The jet fan apparatus of the Republic of Korea Patent Publication No. 10-0968499 (2010. 07. 07) is a horizontal bracket having one side is fixed to the ceiling or side wall and the left and right angle adjusting means for rotating the left and right motor shaft, and the bottom of the horizontal bracket A bracket comprising a vertical bracket connected to the left and right motor shafts and configured to have a vertical angle adjusting means, and a fan bracket connected to the vertical bracket and the vertical motor shaft; A cylindrical blower housing connected to the fan bracket and configured with an impeller therein; A suction side and a discharge side housing each configured before and after the blower housing, the diameter of which is smaller than that of the outer cylinder and the outer cylinder, the inner cylinder of the porous plate, and a sound absorbing material configured to absorb noise between the outer cylinder and the inner cylinder; It is mounted inside the inner cylinder of the discharge-side housing and is curved along the rotational direction of the impeller with respect to the center of the same line as the motor shaft of the impeller, and gradually forms a diaphragm shape that is gradually linearly away from a portion adjacent to the impeller to generate rotating air. A streamlined straightening member provided with a streamlined diaphragm for straightening and a straight diaphragm connected to a straightened portion of the streamlined diaphragm.

However, the jet fan apparatus has a problem in that the circumferential inner surface of the inner cylinder of the suction side and discharge side housings is smoothly configured so that airflow sucked and discharged cannot be guided in the direction of the wind direction.

In addition, the prior art has a problem that the sound absorbing hole is formed on the inner cylinder circumferential surface of the suction-discharge-side side housing does not absorb the noise generated in the air flow sucked and discharged well.

In addition, the prior art has a problem that the airflow straightening member is composed of a diaphragm damages the diaphragm during long-term use.

In addition, the above-described prior art has a problem that the airflow straightening member hinders the flow of the discharge airflow by dividing the inner cylinder of the discharge-side housing into two parts.

The present invention has been made to solve the above problems, the fan fan (induction fan) suction and discharge silencer in the suction and discharge silencer network, the fan-shaped, ladder-shaped or semi-elliptic suction and discharge airflow guide portion fan rotation direction In other words, the suction / discharge silencer is composed of diagonal lines in the longitudinal direction, and the suction / discharge airflow guide part induces suction / discharge airflow, and the sound absorbing hole penetrates the noise generated in the suction / discharge airflow. The present invention provides an impeller attracting fan that is absorbed to reduce blowing noise.

Two impeller manned fan of the present invention is a blower housing fixed to the other side of the bracket that one side is fixed to the ceiling or sidewall of the underground parking lot, the discharge silencer is configured to be connected to one side of the blown housing, and is configured to be connected to one side of the discharge silencer In the attracting fan configured with a discharge port, the discharge silencer has a discharge silencer casing having a cylindrical shape penetrating therein, a discharge silencer sound absorbing material formed on an inner circumferential surface of the discharge silencer casing, and an inner circumferential surface of the discharge silencer sound absorbing material. It is composed of a discharge noise other air network formed of a plurality of rows of sound absorbing holes formed in a cylindrical shape, spaced at regular intervals with respect to the longitudinal direction, and penetrated by a plurality of small holes formed at a predetermined angle in the longitudinal direction of the discharge silencer.

In addition, the present invention further comprises a suction silencer configured to be connected to the inlet side of the blown housing; The suction silencer is composed of a suction silencer casing composed of a cylindrical shape penetrating the inside, a suction silencer sound absorbing material formed on an inner circumferential surface of the suction silencer casing, and a cylindrical shape penetrating an inner circumferential surface of the suction noise absorber sound absorbing material, in a longitudinal direction. The sound absorbing hole spaced apart at regular intervals and penetrated by a plurality of small holes formed at a predetermined angle in the longitudinal direction of the suction silencer is composed of a suction noise other air network formed in a plurality of rows.

In addition, the present invention is the blown housing is configured of a blower is composed of a circulating fan and an axial flow fan spaced at a predetermined interval in the inner space on one motor shaft.

In addition, the present invention is a cross-section of the suction and discharge noise other air network is composed of a continuous suction, discharge air flow guide portion of the shape of a trapezoid, ladder or semi-ellipse, the longitudinal direction of the suction and discharge air flow guide portion is the length of the suction and discharge air flow guide portion It consists of diagonal lines in directions.

In addition, the present invention, the intake silencer is formed of a predetermined interval of the air intake hole through which the inner and outer portions pass through the circumferential surface of the air intake side portion of the body.

In addition, in the present invention, the sound absorbing hole of the suction / discharge noise other air network is configured on the inclined surface of the suction / discharge airflow guide portion corresponding to the rotational direction of the airflow.

In addition, the present invention is constituted by an inclined portion in which both ends of the suction and discharge airflow guide portion extend inclined, and the extended end is integrally contacted with the inner peripheral surface of the suction and discharge silencer casing.

The impeller attracting fan according to the present invention comprises a suction, discharge airflow guide in the suction and discharge silencer network in the suction and discharge silencer, the slant of the fan rotation direction, that is, the suction and discharge airflow guide length, in the longitudinal direction. Therefore, there is an effect of inducing the air flow sucked and discharged in the air flow direction.

In addition, the present invention has the effect that the suction and discharge airflow guide portion is continuously configured in the diagonal direction of the fan rotation direction, that is, the suction and discharge airflow guide portion longitudinal direction does not interfere with the flow of airflow.

In addition, in the present invention, the sound absorbing hole is formed in the rotational direction of the suction and discharge airflow. In other words, it is configured on the inclined surface of the intake / discharge airflow guide portion corresponding to the rotational direction, and there is a good effect of reducing the noise generated during blowing.

In addition, the present invention has an effect of minimizing the noise generated at the end of the suction and discharge air flow guide portion is composed of an inclined portion extending inclined both ends of the suction and discharge air flow guide portion.

In addition, the present invention has the effect that the blowing air and the air flow is discharged to a long distance by simultaneously operating the drift fan and the axial flow fan spaced at regular intervals as a motor in the blown housing.

In addition, the present invention has the effect that the suction suction is composed of a predetermined interval of the air suction hole penetrated to the circumferential surface of the air suction side portion of the body is attracted a lot of air drawn into the suction silencer.

1 is a perspective view of the present invention.
2 is a cutaway perspective view of the present invention.
3 is an exploded perspective view of the present invention.
4 is a perspective view of the operation of the guide pin of the present invention.
5: Inhalation and discharge silencer of the present invention Longitudinal cross section view.
6 is a perspective view of the air guide of the present invention.
7 is a state diagram when the present invention is an obstacle in the ceiling of the underground parking lot.

1 is a perspective view of the present invention of FIG. 1, a cutaway perspective view of the present invention of FIG. 2, an exploded perspective view of the present invention of FIG. 3, a perspective view of the operation of the guide pin of the present invention of FIG. 4, a suction and discharge silencer of the present invention of FIG. The longitudinal cross-sectional view, the air guide perspective view of this invention of FIG. 6, and this invention of FIG. 7 demonstrate with the installed state diagram at the time of the obstacle of the ceiling of an underground parking lot.

Recently, when the weather in Korea has changed at high temperature and high humidity, condensation may occur on the floor or wall in the underground living space. In order to alleviate or prevent such condensation, the ventilation equipment is temporarily ventilated. It may be utilized as.

However, in the conventional jet fan (manned fan) device, the airflow linearization member may damage the diaphragm while the airflow linearization member does not guide the flow of the discharge airflow and thus does not lead to the wind direction and does not satisfactorily reduce the noise generated during blowing. .

According to the present invention, the suction / discharge silencer is provided with a suction / discharge airflow guide portion 44, 24 formed on an inclined surface of the suction / discharge airflow guide portion 44, 24 facing the rotational direction of the suction / discharge airflow. It is configured on the inner surface of (40, 20) to induce blowing of airflow, and related to the impeller induction fan (1), which generates little noise of the airflow generated when the air is sucked. It consists of a large structure, such as the housing 30, the discharge silencer 20, the discharge port 10, and the bracket 70.

The two impeller manned fan (1) is a cylindrical air blowing housing (30) is fixed to the other side of the bracket 70, one side is fixed to the ceiling or sidewall of a large indoor space, such as underground parking, logistics warehouse, gymnasium, auditorium, factory, etc. In the blower housing 30, a blower 80 including a motor 82 having a fan 81 formed on the motor shaft 83 is configured to have a cylindrical shape as a whole.

The two impeller attracting fan (1) discharges the outside air introduced into the cylindrical suction silencer (40) and the blown housing (30) into which the outside air flows around the blown housing (30) connected to the bracket (70). The discharge silencer 20 of the cylindrical discharge silencer 20 and the discharge silencer 20 to the other side is composed of a discharge port 10 for discharging the introduced external air to the outside.

The discharge silencer 20 is formed of a penetrating cylindrical shape, the inside of the two impeller attracting fan 1 by the rotation of the fan 81 by driving the motor 82 of the blower 80 configured in the blown housing 30. The air is discharged to the outside of the impeller attracting fan (1).

The discharge silencer 20 has a cylindrical structure on the inner circumferential surface of the discharge silencer casing 23 and has a discharge silencer sound absorbing material 22 formed with many small voids such as a sponge, and is transverse to the inner circumferential surface of the discharge silencer sound absorbing material 22. A cylindrical discharge noise other air network 21, through which a sound absorbing hole is formed, is formed.

The discharge silencer 20 is configured between the blower housing 30 and the discharge port 10, and is smaller than the diameter of the cylindrical discharge silencer casing 23 and the discharge silencer casing 23 and formed of a porous plate. And a discharge silencer sound absorbing material 22 for absorbing noise is formed between the discharge silencer casing 23 and the discharge noise suppressor network 21 by driving the fan 81 of the discharge airflow, that is, the blower 80. When the air inside the blower housing 30 is sucked into the discharge silencer 20, noise is generated by the intake air, which absorbs the noise.

That is, the discharge silencer 20 includes a discharge silencer casing 23 having a cylindrical shape penetrating therein, a discharge silencer sound absorbing material 22 formed on an inner circumferential surface of the discharge silencer casing 23, and a discharge silencer sound absorbing material 22. It is composed of a discharge noise other air network 21 is formed in a cylindrical shape through the inner circumferential surface of the).

The discharge silencer other air network 21 has a sound absorbing hole formed as a porous through the inner circumferential surface of the discharge silencer sound absorbing material 22 so that the noise generated by the discharge silencer 20 in the discharge air, that is, the discharge air stream passes through the sound absorbing hole, and the discharge silencer It is absorbed by the sound absorbing material 22 and is reduced.

The discharge noise other air network 21 is composed of a sound absorbing hole, the sound absorbing hole is spaced at regular intervals with respect to the longitudinal direction of the discharge noise other air network 21 and penetrates through a plurality of small holes formed at a predetermined angle along the rotation direction of the fan 81. And formed in multiple rows.

Part of the noise generated when the air is discharged from the discharge silencer 20 passes through the sound absorbing hole formed in the discharge noise other air network 21 and is absorbed by the discharge silencer sound absorbing material 22 and the other part of the noise is reflected, but the noise absorbs the sound absorbing hole. It breaks down as it passes, reducing some of the noise.

The discharge silencer sound absorbing material 22 has a cylindrical shape penetrated in the longitudinal direction, and many small voids such as sponge, urethane, etc. are formed and are formed on the inner circumferential surface of the discharge silencer casing 23.

Noise is absorbed by the small voids formed in the discharge silencer sound absorbing material 22, and the wavelength of the noise is destroyed, so that the discharge sound absorber sound absorbing material 22 is made of a soft material so as not to reflect the absorbed noise. Is reduced.

The discharge silencer sound absorbing material 22 may be formed in a cylindrical shape or may be configured in a band shape so as to be inserted into a U-shape, a ladder shape, or a semi-ellipse shape of the discharge air flow guide portion 24 described below.

The discharge silencer miscellaneous network 21 is formed with a discharge airflow guide portion 24, wherein the discharge airflow induction portion 24 is formed in the entire length direction of the discharge noise silencer miscellaneous network 21 and has a cross-sectional shape, a ladder shape or a semi-elliptic shape. The discharge airflow guide portion 24 is configured to be continuous, that is, the "∧" type is formed in a continuous series of "∧∧∧" shape or the discharge airflow guide portion 24 is spaced at regular intervals, that is, "∧" _∧_∧ "shape.

Ladder shape or semi-elliptic shape of the discharge airflow guide portion 24 may also be configured as a continuous or integrally spaced apart at a predetermined interval, such as a ladder shape or a semi-elliptic shape.

The longitudinal direction of the discharge airflow guide portion 24 is composed of oblique lines in the rotational direction of the fan 81 so that the discharge airflow guide portion 24 guides the discharge airflow, that is, the discharge air.

When the fan 81 is rotated, the discharge airflow in the discharge silencer 20 is advanced while rotating in the rotational direction of the fan 81 in the discharge silencer 20, that is, in the discharge noise suppressor network 21. While rotating in the direction of the discharge port 10 is discharged.

By forming the discharge airflow guide portion 24 in accordance with the direction in which the discharge airflow spirals, the discharge airflow guide portion 24 induces the discharge airflow.

The sound absorbing hole of the discharge silencer miscellaneous network 21 is formed on the inclined surface of the discharge airflow guide portion 24 facing the rotational direction of the discharge airflow, that is, corresponding to the rotational direction, to penetrate the noise generated in the discharge airflow to discharge the sound absorber 22 ) Is absorbed.

The sound absorbing hole of the discharge noise other air network 21 is formed on the inclined surface in one direction of the discharge airflow guide portion 24 so that the sound absorbing hole is formed by the heat of the spiral, that is, the inclined surface on which the sound absorbing hole is formed and the inclined surface on which the sound absorbing hole is not formed are repeated. It is formed by a plurality of rows of spirals.

The sound absorbing hole of the discharge noise other air inlet network 21 is formed on one surface of the inclined surface formed in front of the discharge direction of the discharge airflow in the inclined surface of the discharge airflow guide portion 24 so that the discharge airflow and the sound absorbing hole meet each other, and discharge noise in the sound absorbing hole. It will absorb a lot.

The sound absorbing hole of the discharge noise other air network 21 is formed on both of the inclined surfaces of the discharge air flow guide portion 24, that is, the discharge air flow guide portion 24, that is, the sound absorbing hole may be formed in all the discharge noise other air network 21, in this case discharge air flow The sound absorbing holes formed on the inclined surface opposite to the direction of rotation do not come into direct contact with the discharge airflow, and thus the ability to absorb the discharge noise is lowered. Therefore, the effect is not increased. This is not preferable because the unit price can be increased.

 The inclined portion 25 of a predetermined distance is formed at both ends of the discharge air flow guide portion 24, the inclined portion 25 is inclined integrally extended at both ends of the discharge air flow guide portion 24, the extended end is The inner peripheral surface of the discharge silencer casing 23 is integrally contacted or integrally formed.

The inclined portion 25 is formed at the same height as both ends of the discharge airflow guide portion 24, but the last portion, that is, the extended end is formed integrally with the inner circumferential surface of the discharge silencer casing 23, thereby increasing the height toward the extended end. It is configured to be low and is configured to be inclined.

Since the inclined portion 25 is formed in an inclined shape, when the discharge airflow generated from the fan 81 of the blower housing 30 enters the discharge silencer 20 and discharges to the discharge port 10, the discharge airflow guide portion 24 is formed. By minimizing the collision with the to minimize the noise generated in the discharge airflow guide portion (24).

That is, since the inclined portion 25 guides the discharge air flow smoothly to the discharge silencer 20, a collision does not occur and noise is reduced.

Since the inclined portion 25 may be configured in a diamond shape as shown in FIG. 6 or may be configured in a smooth curve, an inclined surface of any shape may be configured.

The suction silencer 40 is formed of a penetrating cylindrical shape, the outside of the two impeller attracting fan 1 by the rotation of the fan 81 by driving the motor 82 of the blower 80 configured in the blowing housing 30. It acts to suck air into the impeller draw fan (1).

The suction silencer 40 has a cylindrical shape on the inner circumferential surface of the suction silencer casing 43 and includes a suction silencer sound absorbing material 42 formed with many small pores such as a sponge, and crosses the inner circumferential surface of the suction silencer sound absorbing material 42. Cylindrical suction noise other air network 41 is formed through the sound absorbing hole is formed.

The suction silencer 40 is configured on one side of the blown housing 30, and the suction noise other air network 41 is formed of a porous plate smaller than the diameter of the cylindrical suction silencer casing 43 and the suction silencer casing 43, In addition, between the suction silencer casing 43 and the suction noise other air network 41, a suction silencer sound absorbing material 42 for absorbing noise is configured to suck the outside air by driving the fan 81 of the suction airflow, that is, the blower 80. When the sound is sucked into the silencer 40, noise is generated by the intake air, which absorbs the noise.

That is, the suction silencer 40 has a suction silencer casing 43 having a cylindrical shape penetrating therein, a suction silencer sound absorbing material 42 formed on an inner circumferential surface of the suction silencer casing 43, and a suction silencer sound absorbing material 42. It consists of a suction noise other air network (41) composed of a cylindrical shape penetrating the inner circumferential surface of the).

The suction silencer other air network 41 is formed with a sound absorbing hole formed as a porous through the inner circumferential surface of the suction silencer sound absorbing material 42, the noise generated in the suction air silencer 40, the suction air flow through the sound absorbing hole It is absorbed by the sound absorbing material 42 and is reduced.

The suction noise other air network 41 is composed of sound absorbing holes, which are spaced apart at regular intervals with respect to the longitudinal direction of the suction noise other air network 41 and formed into a plurality of small holes formed at a predetermined angle along the rotational direction of the fan 81. It is penetrated and formed in multiple rows.

Part of the noise generated when the air is sucked from the suction silencer 40 passes through the sound absorbing hole formed in the suction noise filter other network 41 and is absorbed by the suction silencer sound absorbing material 42 and the other part of the noise is reflected but the noise absorbs the sound absorbing hole. It breaks down as it passes, reducing some of the noise.

The suction silencer sound absorbing material 42 has a cylindrical shape penetrated in the longitudinal direction, and many small voids such as a sponge and urethane are formed and are formed on the inner circumferential surface of the suction silencer casing 43.

 Noise is absorbed by the small voids formed in the suction silencer sound absorbing material 42, and the wavelength of the noise is destroyed, so that the suction noise absorber sound absorbing material 42 is made of a soft material so as not to reflect the absorbed noise. Is reduced.

The suction silencer sound absorbing material 42 may be configured in a cylindrical shape or may be configured in a band shape so as to be respectively inserted into a U-shape, a ladder shape or a semi-ellipse shape of the intake airflow guide 44 described below.

The suction noise other air network 41 is provided with an intake airflow guide 44, wherein the suction air current guide 44 is configured in the entire longitudinal direction of the suction noise other air network 41 and the cross section is

It is composed of a U-shape, a ladder shape or a semi-ellipse shape, and the intake airflow guide portion 44 is configured to be continuous, that is, the "∧" shape is configured in a continuous form to form a "∧∧∧" shape, or the intake airflow guide portion 44 is It may be configured to be spaced apart at regular intervals, that is, in the form of "∧_∧_∧".

Ladder shape or semi-elliptic shape of the intake airflow guide portion 44 may also be configured such that the ladder shape or the semi-elliptic shape is continuously integrated or spaced at regular intervals.

The longitudinal direction of the intake airflow guide portion 44 is composed of oblique lines in the rotational direction of the fan 81 so that the intake airflow guide 44 induces intake airflow, that is, intake air.

When the fan 81 is rotated, the suction airflow in the suction silencer 40 is advanced while rotating in the rotational direction of the fan 81 in the suction silencer 40, that is, in the suction silencer air network 41. It is discharged in the direction of the blowing housing 30 while rotating in a spiral.

By forming the intake airflow guide portion 44 to coincide with the direction in which the intake airflow spirals, the intake airflow guide portion 44 induces the intake airflow.

The sound absorbing hole of the suction sound absorber other air network 41 is formed on the inclined surface of the intake airflow guide 44 corresponding to the rotational direction of the intake airflow, that is, through the noise generated in the intake airflow to absorb the sound absorbing material 42 ) Is absorbed.

The sound absorbing hole of the suction noise other air network 41 is formed on the inclined surface in one direction of the intake airflow guide portion 44, so that the sound absorbing hole is formed by the heat of the spiral, that is, the inclined surface on which the sound absorbing hole is formed and the inclined surface on which the sound absorbing hole is not formed are repeated. It is formed by a plurality of rows of spirals.

The sound absorbing hole of the suction noise other air network 41 is formed on one surface of the inclined surface formed in front of the inclined surface of the intake airflow guide 44 in the rotational direction of the intake airflow, whereby the intake airflow and the sound absorbing hole meet each other, and the intake noise in the sound absorbing hole. It will absorb a lot.

The sound absorbing hole of the suction noise other air network 41 is formed on both inclined surfaces of the suction air flow guide unit 44, that is, the suction air flow guide unit 44, that is, the sound absorbing hole may be formed in all the suction noise other air network 41, in this case suction The sound absorbing holes formed on the inclined surface opposite to the direction of rotation of the airflow are not in direct contact with the intake airflow, and thus the ability to absorb the inhalation noise is lowered, so that the effect is not increased. It is not preferable because the unit cost can be increased.

The inclined portion 45 of a predetermined distance is formed at both ends of the intake airflow guide 44, the inclined portion 45 is inclined integrally extending from both ends of the intake airflow guide 44, the extended end The inner circumferential surface of the suction silencer casing 43 is integrally contacted, that is, integrally configured.

The inclined portion 45 is formed at the same height as both ends of the intake airflow guide 44, but the last portion, that is, the extended end is integrally formed on the inner circumferential surface of the intake silencer casing 43, the height toward the extended end Is configured to be low to be configured to be inclined.

When the inclined portion 45 is configured to be inclined, the intake airflow generated from the fan 81 of the blower housing 30 enters the intake silencer 40 and discharges to the blower housing 30. By minimizing the collision with the) to minimize the noise generated in the intake airflow guide 44.

That is, the inclined portion 45 guides the intake air flow smoothly to the intake silencer 40 so that a collision does not occur and noise is reduced.

Since the inclined portion 45 may be configured in a diamond shape as shown in FIG. 6 or may be configured in a smooth curve, an inclined surface of any shape may be configured.

In addition, the circumferential surface of the air suction side end portion of the body in the suction silencer 40, that is, the portion where the bell mouse 60 is coupled, the air suction hole 46 penetrates at regular intervals so that the inside and outside flow.

The air suction hole 46 is formed in a body that is not composed of the suction noise other air network 41 and the suction noise absorber sound absorbing material 42, so that the amount of air attracted to the inside of the suction silencer 40 when the fan 81 rotates. The intake area of air is added.

That is, when the fan 81 rotates, air is sucked through the bell mouse 60, that is, through the inner diameter of the suction silencer 40, and the air is sucked through the air suction hole 46.

On the other hand, the suction port of the suction silencer 40 is configured with a bell mouse (60) configured with a suction protection net (61) to prevent inflow of light and large foreign matter, for example, paper or leaves.

The blown housing 30 is formed in a cylindrical shape, and a blower device 80 configured by a motor 82 having a fan 81 formed on a motor shaft 83 is configured therein, and a fan 81 driven by driving the motor 82. The external air of the impeller attracting fan 1 is forced into the suction silencer 40 by the rotation of the fan and forcedly blows into the discharge silencer 20, and the outside of the two impeller attracting fan 1 is discharged through the discharge port 10. To discharge.

The blower 80 is driven by two fans 81 spaced at regular intervals to one motor 82, that is, between two fans 81 on the motor shaft 83 configured in one motor 82 The motor 82 is configured to be spaced apart with the motor 82 interposed, or two fans 81 to position the motor 82 on one side and two fans 81 to be spaced apart so that two fans 81 simultaneously performs suction and discharge operations, thereby increasing the amount of blowing air.

That is, the fan 81 is any one of the two motor shaft 83 protruding and configured to protrude to both sides of the motor 82 through the rotor (rotator) in one motor 82 To configure the circumferential fan on the motor shaft of the motor shaft and to configure the axial flow fan on the other motor shaft to be spaced apart at regular intervals or one motor shaft (83) protruding and configured to one motor 82 and the motor shaft (83) ) Constitute a vortex fan and an axial fan spaced apart at regular intervals.

Among the two fans 81, the fan 81 on the suction silencer 40 side uses a four-flow fan that sends airflow from the inside of the vane to the middle of the rotational axis and the centrifugal direction by the rotation of the vane. 20) The side uses an axial fan whose air flow direction is parallel to the rotation axis of the blower.

Since the crossflow fan is capable of rotating at a higher speed than the centrifugal fan, it is preferable to use an airfoil fan capable of interlocking with the axial flow fan and generating a large pressure in a slightly larger wind direction.

The axial flow fan preferably uses a propeller fan or a tubular axial fan that has a small pressure difference but discharges a large amount of air.

 The two fans 81 simultaneously perform suction and discharge actions with respect to air, but among the two fans 81, a fan configured on the suction silencer casing 40 side, that is, a four-flow fan, draws outside air into the jet fan of the track-type discharge port. The suction action is strong and the fan configured on the discharge silencer casing 20 side, that is, the axial fan, has a strong action of discharging the internal air to the outside and is discharged to a long distance.

In other words, by the two fans 81 of the blower 80, that is, the four-flow fan and the axial fan, the airflow is rotated while the air flow rate and the speed are rapidly increased by the rotational force and flow into the discharge port 10 to discharge the discharge port 10. Is discharged, and the discharged air is sent out a large amount of air to a long distance.

On the other hand, the air guide 90 is formed in communication with the suction silencer 40 and the four-flow fan in the front of the inside of the air blowing housing 30, the air guide 90 is the outside air into the internal air blowing housing (30) The vortex fan is configured to be introduced.

The air guide 90 is composed of a guide portion 91 and the front portion 92, the guide portion 91 is formed integrally on the inside of the air blowing housing 30 and toward the inward from the suction silencer 40 side The diameter is made small.

In the inlet 93, the front portion 92 and the guide portion 91 are combined to form a one-piece, that is, the front portion 92 and the guide portion 91 to share the inlet 93.

The front portion 92 is formed integrally with the guide portion 91, the diameter is increased toward the outside from the inlet 93, and the inner side is configured to be adjacent to the foil wing of the vortex fan to the end of the foil wing The configuration is the same as that of enveloping and wrapping.

The guide portion 91 and the front portion 92 communicate with each other to guide the air introduced into the inner space portion of the air guide 90 to the vortex fan.

The discharge port 10 is configured to penetrate and is configured at one side of the discharge silencer 20 to discharge the airflow discharged from the discharge silencer 20 to the outside of the impeller attracting fan 1.

The discharge port 10 has an end connected to the discharge silencer 20, that is, an inlet is formed in the same shape as the end of the discharge silencer, and the outlet of the air discharge side has a track shape or a rectangular shape, and the middle is cylindrical and track shape. It consists of a (rectangle) mixed type.

In addition, the front of the discharge port 10 has a grill 14 composed of a vertical guide pin 14-1 and a horizontal guide pin 14-2 for adjusting the direction of the discharge air.

The vertical guide pin 14-1 is composed of a plurality of adjusting the horizontal direction of the air discharged by the vertical axis as a rotation axis, the horizontal guide pin 14-2 is a horizontal axis in front of the vertical guide pin 14-1 It is composed of a plurality of adjusting the vertical direction of the discharged air by using a rotation axis.

One end is coupled to the vertical guide pin (14-1) and installed through the horizontal guide pin (14-2) to adjust the position of the vertical guide pin (14-1) and horizontal guide pin (14-2) (Not shown) is configured.

The plurality of vertical guide pins 14-1 are coupled to an interlocking portion (not shown) in a horizontal direction so that the plurality of vertical guide pins 14-1 can be simultaneously operated in the same speed and the same direction, The horizontal guide pin 14-2 is coupled to the interlocking portion (not shown) in the vertical direction, so that the plurality of horizontal guide pins 14-2 are configured to operate simultaneously in the same speed and the same direction.

The bracket 70 is formed in a plate shape and consists of an installation bracket 72 and a fixing bracket 71. The installation bracket 72 is horizontally connected to the vertical portion and the fixing bracket 71 fixed to the ceiling or the side wall. The fixed bracket 71 is configured by an additional configured 'c' shape, and the fixed bracket 71 is configured by a 'c' shape including a horizontal part connected to the installation bracket 72 so that horizontal rotation is possible and a vertical part connecting the blown housing 30. .

The mounting bracket 72 is configured to be rotatable with respect to the fixed bracket 71 so that the blown housing 30 is hinged to the mounting bracket 72 so that the blown housing 30 is rotated to the mounting bracket 72 so that the impeller The attracting fan 1 is pivotally adjusted with respect to the mounting bracket 72.

Although the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims below, but also by those equivalent to the claims.

1: Two impeller attracting fan 10: discharge port
14: Grill 14-1: Vertical Guide Pin
14-2: horizontal guide pin 20: discharge silencer
21: discharge silencer other network 22: discharge silencer sound absorbing material
23: discharge silencer casing 24: discharge air flow guide portion
25, 45: inclined portion 30: air blowing housing
40: suction silencer 41: suction silencer network
42: suction silencer sound absorbing material 43: suction silencer casing
44: intake air flow guide 46: air suction hole
60: Bellemouth 61: Suction Shield
70: bracket 71: fixing bracket
72: mounting bracket 80: blower
81: fan 82: motor
83: motor shaft 90: air guide
91: guide portion 92: front portion
93: manned population

Claims (7)

In a manned fan comprising a blower housing fixed to the other side of the bracket, one side is fixed to the ceiling or sidewall of an underground parking lot, a discharge silencer connected to one side of the blower housing, and a discharge port connected to one side of the discharge silencer.
The discharge silencer is composed of a discharge silencer casing composed of a cylindrical shape penetrating therein, a discharge silencer sound absorbing material formed on an inner circumferential surface of the discharge silencer casing, and a cylindrical shape penetrating an inner circumferential surface of the discharge noise absorber sound absorbing material, in a longitudinal direction. A sound absorbing hole spaced apart at regular intervals and penetrated by a plurality of small holes formed at a predetermined angle in the discharge silencer longitudinal direction, the discharge noise suppressor having a plurality of rows;
The cross section of the discharge silencer miscellaneous network is formed in a convex shape, a ladder shape or a semi-elliptic discharge air flow guide portion, and an end of the discharge air flow guide portion is constituted by an oblique line in the longitudinal direction of the discharge air flow guide portion;
And the discharge airflow guide portion induces airflow, and the discharge silencer absorbs noise generated in the discharge airflow.
The method of claim 1,
The suction silencer is further configured to be connected to the inlet side of the air blowing housing;
The suction silencer is composed of a suction silencer casing composed of a cylindrical shape penetrating the inside, a suction silencer sound absorbing material formed on an inner circumferential surface of the suction silencer casing, and a cylindrical shape penetrating an inner circumferential surface of the suction noise absorber sound absorbing material, in a longitudinal direction. A sound absorbing hole spaced apart at regular intervals and penetrated by a plurality of small holes formed at a predetermined angle in the longitudinal direction of the suction silencer, the suction noise suppressor having a plurality of rows;
The suction impeller drawer fan, characterized in that for absorbing the noise generated in the intake air stream.
The method according to claim 1 or 2,
The blow housing comprises a blower in which the circumferential fan and the axial fan are spaced apart at regular intervals in the inner space on one motor shaft;
The drift fan and the axial flow fan is simultaneously operated by the operation of the motor, the blowing amount is large, characterized in that the discharge impeller fan.
The method of claim 2,
The cross section of the suction silencer other air network is composed of a U-shaped, ladder-shaped or semi-elliptical suction airflow guide portion, and the end of the suction airflow guide portion is composed of diagonal lines in the longitudinal direction of the suction airflow guide portion;
The intake air flow guide unit is a two-impeller impeller fan, characterized in that to induce air flow.
The method of claim 2,
The suction silencer is composed of a predetermined interval of the air suction hole penetrated inside and outside the circumferential surface of the air suction side portion of the body;
The air impulse attracting fan, characterized in that the air sucked by the rotation of the fan through the air suction hole is drawn into the suction silencer.
The method according to claim 1 or 4,
The sound absorbing hole of the suction noise other network or the discharge noise other network is the direction of rotation of airflow.
It is comprised in the inclined surface of the suction and discharge | emission airflow guide part corresponding to this;
The sound absorbing hole penetrates the noise generated in the airflow and is absorbed by the suction / discharge silencer sound absorbing material.
The method according to claim 6,
Both ends of the suction / discharge airflow guide portion are inclinedly extended, and an inclined portion is formed in which the extended end is integrally contacted with the inner circumferential surface of the suction / discharge silencer casing;
And the inclined portion minimizes noise generated in the suction and discharge air flow guide portion.

Images