KR100613765B1 - Ventilating apparatus for cleanroom - Google Patents

Abstract

The present invention relates to a fan structure for a clean room.

According to an aspect of the present invention, there is provided a fan structure installed in an air passage connected to a clean room to introduce external air, comprising: a case installed in an air passage leading to the clean room; An impeller installed at an upper end of a vertical shaft of a motor positioned at an inner center of the case to introduce external air; An expansion fan installed on a lower vertical axis of the impeller and having a plurality of vanes having a predetermined inclination angle so as to transfer air introduced from the impeller in an outward direction; The expansion fan is fixed to the inside of the casing to fix the motor, and a plurality of pores for air passing through the bottom surface are formed, and a plurality of inclined plates having a plurality of pores are formed on the upper circumferential surface and have a plurality of pores. An air dispersing member configured to supply air moved from the lower side through the pores formed on the inclined surface and the pores formed on the bottom surface; And a filter member installed on the bottom of the case and filtering the air flowing downward from the air dispersion member to be supplied into the clean room.

According to the present invention as described above, the impeller rotated by the motor and the expansion fan are sequentially installed on the air passage leading to the clean room so that the air flowing through the impeller is diffused through the expansion fan and at the same time the air diffused is dispersed Filtered in the form of vertical laminar flow through the member is discharged into the clean room has the effect of obtaining a stable vertical laminar flow.

Clean room, fan structure, fan unit, blower, impeller,

Description

Fan Structure for Clean Room {VENTILATING APPARATUS FOR CLEANROOM}

1 is a cross-sectional view of an installation state of a fan structure for a conventional clean room;

2 is a cross-sectional view of an installation state of a fan structure for a clean room according to the present invention;

3 is a perspective view of main parts of FIG. 2;

4 is another embodiment of the expansion fan according to the present invention.

* Brief description of symbols for the main parts of the drawings *

100: case

110: air inlet

200 impeller

210: motor 211: vertical axis

300: expansion fan

400: air dispersion member

410: inclined plate

500 filter element

The present invention relates to a fan structure for a clean room, and more particularly, to sequentially install an impeller and an expansion fan rotated by a motor on an air passage leading to the clean room so that air introduced through the impeller is diffused through the expansion fan. The present invention relates to a fan structure for a clean room in which air diffused at the same time is filtered in a state of forming a vertical laminar flow through an air dispersion member, and then discharged into the clean room to obtain stable vertical laminar flow.

In general, a clean room refers to a space that is environmentally controlled in terms of temperature, humidity, air pressure, and illuminance, as well as particles such as dust present in the air. Such a clean room is an assembly room in an electronic communication field such as a semiconductor, It is used in laboratories in schools, hospitals, operating rooms in hospitals, bacterial culture rooms, and aseptic rooms.

In the clean room, there should not be even the invisible fine dust contained in the air. Accordingly, the worker wears a special clothing that does not have dust, and the air supplied into the clean room is fined through a blower having a filter. The dust is removed and then supplied.

The conventional blower installed in the clean room as described above has been registered and presented as Korean Patent No. 10-0463637 (Cleaning Room Ceiling Mounting Blower) as one example.

1, the air is sucked into the case 10 by the blowing fan 20, and the sucked air is diffused at the same time as the suction and is evenly distributed through the dispersion plate 40, and then the filter. The structure is supplied to the clean room after the pollutant is removed by (50).

However, since only the blower fan 20 of the blower has a small amount of air that can be forcibly sucked, there is a problem in that the air density supplied to the clean room is less so that the air cannot be circulated more smoothly.

In addition, the conventional blower fan 20 has a structure that extends through the wing structure of the blower fan at the same time as the inflow of air is required a lot of force of the motor 21 when the intake of air, there is a limit that noise is generated accordingly. .

Accordingly, the present invention was devised to solve the above problems, and an object of the present invention is to sequentially install an impeller and an expansion fan rotated by a motor on an air passage leading to a clean room, so that air introduced through the impeller The air is diffused through the expansion fan and at the same time the air is diffused through the air dispersion member in the form of vertical laminar flow is discharged into the clean room to obtain a stable vertical laminar flow.

In other words, it is intended to simplify the appearance as well as to improve the function by taking a structure in which air is introduced through the impeller and diffused outward through the expansion fan.

Another object of the present invention is to allow the impeller and the expansion fan sequentially installed on the vertical axis of the motor to have a different rotation ratio to control the amount of air flowing into the clean room.

In order to achieve the above object, the present invention, the fan structure is installed in the air passage connected to the clean room to introduce the outside air, the case is installed in the air passage leading to the clean room; An impeller installed at an upper end of a vertical shaft of a motor positioned at an inner center of the case to introduce external air; An expansion fan installed on a lower vertical axis of the impeller and having a plurality of vanes having a predetermined inclination angle so as to transfer air introduced from the impeller in an outward direction; The expansion fan is fixed to the inside of the casing to fix the motor, and a plurality of pores for air passing through the bottom surface are formed, and a plurality of inclined plates having a plurality of pores are formed on the upper circumferential surface and have a plurality of pores. An air dispersing member configured to supply air moved from the lower side through the pores formed on the inclined surface and the pores formed on the bottom surface; And a filter member installed on the bottom of the case and filtering the air flowing downward from the air dispersion member to be supplied into the clean room.

Here, it is preferable to further install an air guide piece having an inclination angle to guide the flow of air downward in the upper inner corner of the case.

In addition, the impeller provided on the top of the vertical shaft is separated from the vertical shaft is rotated by a separate motor that is supported by a bracket on the inner wall of the case to be able to adjust the rotation ratio of the impeller and expansion fan will be.

In addition, the wings forming the expansion fan, it will be possible to form an air guide groove that is open to the outside and upward to guide the movement of the air.

Hereinafter, a fan structure for a clean room according to the present invention will be described in detail with reference to the accompanying drawings, and in describing the present invention, if it is determined that the related art may obscure the gist of the present invention, the detailed description thereof will be omitted. do.

2 or 3, the fan structure for a clean room of the present invention includes a case 100 installed in an air passage leading to the clean room in a fan structure installed in an air passage connected to the clean room to introduce outside air. Is installed on the upper end of the vertical axis of the motor located in the inner center of the case 100, the impeller 200 is introduced to the outside air, and installed on the lower vertical axis of the impeller 200 is introduced from the impeller 200 Expansion fan 300 formed with a plurality of wings having a predetermined inclination angle to transfer the air in an outward direction, and is fixed to the inside of the case 100 integrally to fix the motor and pores for passing air to the bottom surface A plurality of slanted plates are formed on the upper circumferential surface and a plurality of inclined plates formed with a plurality of pores are inclined to move air from the expansion fan 300 The air dispersion member 400 to be distributed and supplied to the lower side through the pores formed in the bottom and the pores formed in the bottom surface, and installed on the bottom of the case 100 to filter the air flowing down from the air dispersion member 400 It is configured to include a filter member 500 to be supplied into the clean room.

The case 100 is installed on a moving passage of air connected to the clean room, and an air inlet 110 for introducing air is formed on an upper surface thereof, and a bottom surface thereof is opened downward. .

The impeller 200 is fixedly coupled to the upper end of the vertical axis 211 of the motor 210 provided on the vertical axis of the center of the air inlet 110 of the case 100, the power of the motor 210 by applying power When the vertical shaft 211 is rotated, air is forced into the case 100 through the rotational force of the blade.

The expansion fan 300 is installed on the lower vertical axis of the impeller 200 to interlock with the impeller 200 and move the air introduced through the impeller 200 in an outward direction. 300 is composed of a fixed portion 310 coupled to the vertical axis 211 of the motor 210 and a plurality of wings 320 formed along the periphery of the fixed portion 310, the wing 320 is The air flowing from the upper side to the lower side takes an inclination angle that can be moved to the outside during rotation.

Here, the wing 320 constituting the expansion fan 300, it is preferable to form an air guide groove 321 open to the outside and upward to guide the outside to guide the movement of the air is moved downward.

In addition, the impeller 200 provided on the top of the vertical axis 211 is separated from the vertical axis 211 is located on the vertical axis line and the impeller 200 is a bracket (not shown) on the inner wall of the case 100 It is possible to adjust the rotation ratio of the impeller 200 and the expansion fan 300 by being rotated by a separate motor (not shown) that is fixed through.

The air dispersing member 400 is to be fixed to the motor 210 integrally to the case 100, and evenly disperses the air moving in the outward direction through the expansion fan 300 to downward It is intended to be moved.

A plurality of pores 420 penetrated up and down are perforated on the upper surface of the air dispersion member 400, and a plurality of inclined plates 410 having an inclination angle are formed on the circumferential surface at predetermined inclinations along the circumference thereof. A plurality of pores 420 are formed on the inclined surface of the inclined plate 410 to allow air to pass therethrough.

Therefore, the air moved through the expansion fan 300 is to uniformly distribute the air to the first through the inclination angle of the inclined plate 410, the air in the state in which the second direction is downwardly changed through the pores 420 Will guide you.

The filter member 500 is installed on the bottom surface of the case 100 by a known technique to filter the air moving downward through the air dispersion member 400, the filter member 500 is a filter The gasket is attached to the upper end of the provided frame part and installed in the case 100 to maintain airtightness.

Referring to the assembly state and action of the present invention made of a configuration as described above in detail.

When assembling, as shown in FIG. 2 or 3, the air dispersion member 400 is fixed to the case 100, and the motor 210 is continuously disposed on the center upper surface of the air dispersion member 400. After coupling, the impeller 200 and the expansion fan 300 may be sequentially coupled to the vertical shaft 211 of the motor 210.

When the filter member 500 is continuously coupled to the bottom of the case 100 according to a known method, the assembly of the fan structure for the clean room is completed.

Subsequently, when the power is connected through a control unit (not shown) of the case 100, the impeller 200 and the expansion fan 300 rotate while the vertical shaft 211 of the motor 210 rotates. The outside air is forced to flow by the 200. Then, the air introduced through the impeller 200 is moved outward by the expansion fan 300, and the air continuously moving passes through the inclined plate 410 and the pores 420 of the air dispersion member 400. While the direction is guided downward and the air is moved downward is again filtered while passing through the filter member 500 is moved into the clean room.

Here, it is preferable that the air guide piece 600 having an inclination angle is further installed on the inner upper edge of the case 100 to induce the flow of air downward.

In the above has been shown and described a preferred embodiment of the fan structure for a clean room of the present invention, the present invention is not limited to the above embodiment and is normally in the art to which the present invention belongs without departing from the spirit of the present invention. Various changes and modifications may be made by those skilled in the art.

The present invention configured as described above, the air passage of the duct by being supplied to the clean room through the filter member while forming a vertical laminar flow through the air dispersion member while the air forced into the clean room through the impeller diffused through the expansion fan at the same time It is possible to obtain a wider vertical laminar flow to prevent turbulence in the clean room as well as to obtain a stable vertical laminar flow.

Claims (4)

In the fan structure is installed in the air passage connected to the clean room to introduce the outside air, A case installed in an air passage leading to the clean room; An impeller installed at an upper end of a vertical shaft of a motor positioned at an inner center of the case to introduce external air; An expansion fan installed on a lower vertical axis of the impeller and having a plurality of vanes having a predetermined inclination angle so as to transfer air introduced from the impeller in an outward direction; The expansion fan is fixed to the inside of the casing to fix the motor, and a plurality of pores for air passing through the bottom surface are formed, and a plurality of inclined plates having a plurality of pores are formed on the upper circumferential surface and have a plurality of pores. An air dispersing member configured to supply air moved from the lower side through the pores formed on the inclined surface and the pores formed on the bottom surface; And a filter member installed at a bottom surface of the case and filtering the air flowing downward from the air dispersion member to be supplied into the clean room. The method of claim 1, The fan structure for a clean room, characterized in that the air guide piece having an inclination angle is further installed to guide the flow of air downward in the inner upper corner of the case. The method of claim 1, The impeller provided on the top of the vertical shaft is rotated by a separate motor which is separated from the vertical shaft and supported by a bracket on the inner wall of the case so that the rotation ratio of the impeller and the expansion fan can be adjusted. Fan structure for clean room. The method according to claim 1 or 3, The wing constituting the expansion fan, the fan structure for a clean room, characterized in that to form an air induction groove opened to the outside and upward to guide the movement of the air.

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