KR101573451B1 - Fan filter unit having laminar flow mixing chamber - Google Patents

Fan filter unit having laminar flow mixing chamber Download PDF

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Publication number
KR101573451B1
KR101573451B1 KR1020150127636A KR20150127636A KR101573451B1 KR 101573451 B1 KR101573451 B1 KR 101573451B1 KR 1020150127636 A KR1020150127636 A KR 1020150127636A KR 20150127636 A KR20150127636 A KR 20150127636A KR 101573451 B1 KR101573451 B1 KR 101573451B1
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South Korea
Prior art keywords
air
mixing chamber
flow type
type mixing
layer flow
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KR1020150127636A
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Korean (ko)
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지용섭
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지용섭
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0227—Ducting arrangements using parts of the building, e.g. air ducts inside the floor, walls or ceiling of a building
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F24F3/1603—
    • F24F3/161—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/14—Details or features not otherwise provided for mounted on the ceiling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Ventilation (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clean air-conditioning unit with a laminar mixing chamber structure, and its object is to provide a clean air-conditioning unit which can reduce an occupied area when installing a clean air-conditioning unit. In order to achieve the above object, the present invention provides a mixing chamber comprising a vertical layer flow type mixing chamber in which an air conditioning air inlet and a circulating air inlet are formed, and a vertical layer flow type mixing chamber disposed below the vertical layer flow type mixing chamber, And a filter chamber formed at a lower portion of the left and right laminar flow mixing chambers and connected to allow air communication with the left and right laminar flow mixing chambers; An air blower installed in the left and right laminar flow type mixing chambers for introducing air through a central upper portion and discharging air around a side surface; And a filter installed in the filter chamber for filtering foreign substances contained in air discharged from the filter chamber to the clean room.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a low noise clean air conditioning unit having a laminar flow mixing chamber structure,

The present invention relates to a clean air-conditioning unit installed in a ceiling of a clean room requiring cleanliness for production and operation of ultra-precision electronic parts, foods, or pharmaceuticals such as semiconductors, and supplying air to the inside of a clean room. The present invention relates to a fluidized bed, and more particularly, to a fluidized bed which has a compact structure by disposing a blower and a filter in a vertical structure, and a layered mixing chamber is formed in a multi- Air conditioning unit.

In general, a space such as a workplace where production of high-precision electronic parts such as semiconductors is performed, a workshop where food or medicine is produced, or an operation room where a surgical operation is performed must be kept constant in temperature and humidity in accordance with working conditions, It is necessary to keep the clean state by removing fine dust in the air.

Therefore, the work that is sensitive to the suspended substances such as temperature, humidity, and fine dust as described above is performed in a clean room.

The clean room is provided with the temperature and humidity controlled air through the air conditioner to always maintain a constant temperature and humidity. In the ceiling of the clean room, the air-conditioning air provided from the air conditioner is finally filtered and ejected into the inside of the clean room A clean air conditioning unit is installed.

Fig. 1 shows the structure of a conventional clean air-conditioning unit.

The clean air-conditioning unit shown in FIG. 1 is disclosed in Korean Utility Model Publication No. 0405156. The structure of a conventional clean air-conditioning unit will be described with reference to FIG.

The conventional clean air conditioning unit comprises a suction chamber 10, an exhaust chamber 20, a blower 30, and a filter 40.

The air-conditioning air and the circulating air are introduced into the suction chamber 10 by the operation of the blower. The air-conditioning air and the circulating air thus introduced enter the exhaust chamber (not shown) formed on the side surface of the suction chamber 10 20, and then is blown into the inside of the clean room through the filter 40 provided in the exhaust chamber 20.

For reference, the air-conditioning air is air whose temperature and humidity are controlled by the air-conditioning equipment, and the circulating air is air circulated by being discharged from the clean room.

In the conventional clean air-conditioning unit thus structured, the air-conditioning air and the circulating air flow in a direction orthogonal to each other or in a direction opposite to each other, and the flows of the two fluids collide with each other. And the flow of the fluid is not smooth, resulting in a problem that the cleanliness of the air and the distribution of the temperature and humidity become incomplete.

Further, when the air-conditioning air pressure and the circulating air pressure are not balanced, there is a problem that the backwash phenomenon occurs due to the air being pushed to one side.

In addition, since the conventional clean air-conditioning unit does not include the suction chamber and the exhaust chamber due to the volume of the sirocco fan constituting the blower, and the exhaust chamber is separately formed on the side portion of the suction chamber, the area occupied by the clean air- There is an increasing problem.

FIG. 2 is a plan view showing a structure in which a clean air-conditioning unit and an unshielded lamp are installed on a ceiling of a conventional operating room.

In FIG. 2, eight clean air conditioning units BFU are centrally located at a central portion where the operation table T is located. Each of the clean air conditioning units includes a suction chamber 10, And an exhaust chamber (20).

On the other hand, in the ceiling of the operating room, an unshaded lamp (L) is installed on all sides to prevent the generation of shadows during surgery.

However, when the suction chamber and the exhaust chamber are partitioned in the horizontal direction as in the conventional clean air-conditioning unit, since the area occupied by the clean air-conditioning unit is inevitably required to be installed far from the operation table, There is a problem that the effect is reduced.

Registration Utility Model Bulletin 0405156 (Bulletin of 10.01.2006)

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a clean air conditioning unit which can reduce an occupied area when a clean air-conditioning unit is installed.

It is another object of the present invention to provide a clean room air conditioner having a single-chamber type mixing chamber structure for minimizing noise and static pressure loss by improving the air flow structure to be introduced into a clean air- Thereby providing an air conditioning unit.

In order to achieve the above object and to solve the conventional drawbacks of the present invention, the present invention relates to a vertical-flow type mixing chamber in which an air conditioning air inlet and a circulating air inlet are formed, A case having a laminar mixing chamber connected to the laminar mixing chamber so as to be able to communicate with air and a filter chamber connected to the left and right laminar mixing chambers so as to communicate with the left and right laminar mixing chambers so as to communicate air; An air blower installed in the left and right laminar flow type mixing chambers for introducing air through a central upper portion and discharging air around a side surface; And a filter installed in the filter chamber for filtering foreign substances contained in air discharged from the filter chamber to the clean room.

Meanwhile, in the clean room air-conditioning unit with a laminar flow mixing chamber structure, the air-conditioning air inlet and the circulating air inlet are formed in parallel with each other on the upper surface of the vertical layer flow type mixing chamber so that the two fluids are parallel to each other It is preferable to let it flow.

Meanwhile, in the low noise clean air conditioning unit of the layer flow type mixing chamber structure, the clean air air conditioning unit is disposed between the air conditioning air inlet and the circulating air inlet, and protrudes downward from the ceiling of the vertical layer flow mixing chamber. And an induction vane configured to guide the two fluids introduced into the air conditioning air inlet and the circulation air inlet, respectively.

In the clean room air conditioning unit with a laminar flow mixing chamber structure, a vertical flow type mixing chamber and a left and right layer flow type mixing chamber are defined between the vertical flow type mixing chamber and the left and right layer flow type mixing chambers, A partition wall having a communication port formed therein; And an air induction portion protruding upward from the upper surface of the partition wall and extending along the circumference of the air communication port and forming a bell mouth structure flow path in which the area progressively decreases downward.

Meanwhile, in the low noise clean air conditioning unit of the laminar flow type mixing chamber structure, the clean air ventilation unit is installed in the left and right layer flow type mixing chamber so as to be positioned adjacent to the side surface of the blower, The first adjusting vane may be formed in two points, and the two first adjusting vanes may be formed in point symmetry with respect to the center point of the blower.

Meanwhile, in the low noise clean air conditioning unit of the laminar mixing chamber structure, the second adjusting vane is positioned at the lower portion of the blower and guides the air flowing out from the side circumference of the blower to flow in the horizontal direction without flowing directly downward .

On the other hand, in the low noise clean air conditioning unit of the layer flow type mixing chamber structure, the second adjusting vane can be assembled to the case in a detachable manner.

On the other hand, in the low noise clean air-conditioning unit of the laminar flow type mixing chamber structure, it is preferable that the wall of the case forming the vertical laminar flow mixing chamber and the left and right laminar flow mixing chambers has a sound absorbing material.

On the other hand, in the low noise clean air conditioning unit of the layer flow type mixing chamber structure, the first adjustment vane preferably has a sound absorbing material built therein.

On the other hand, in the low noise clean air conditioning unit of the layer flow type mixing chamber structure, the second adjusting vane preferably has a sound absorbing material built therein.

According to the present invention having the above-described features, the vertical-flow-type mixing chamber into which the air conditioning air conditioning and the circulating air flows, the left and right layer flow type mixing chambers in which the blower is installed, and the filter chambers in which the filters are installed are vertically arranged , The area occupied by the clean air-conditioning unit can be reduced compared with the conventional one, thereby saving space in ceiling installation and increasing the utilization of the ceiling space.

Further, the flow of air can be improved to reduce static pressure loss, thereby reducing current consumption and noise generation.

In addition, when installing the clean air-conditioning unit and the light-emitting unit on the ceiling of the operating room, the light-emitting unit can be brought closer to the central portion than the conventional one due to the reduced occupied area of the clean air-conditioning unit.

1 is a structural view of a conventional clean air-conditioning unit,
FIG. 2 is a plan view showing a structure in which a clean air-conditioning unit and an unshielded lamp are installed on a ceiling of a conventional operating room,
3 is a front view showing a structure of a clean air-conditioning unit according to a preferred embodiment of the present invention.
FIG. 4 is a side view showing a structure of a clean air-conditioning unit according to a preferred embodiment of the present invention,
5 is a plan view showing the installation structure of the blower according to the present invention,
FIG. 6 is a front view showing an air flow structure formed inside the clean air-conditioning unit according to the present invention. FIG.
7 is a plan view showing an air flow structure formed around the blower according to the present invention,
8 is a plan view showing a structure in which a clean air-conditioning unit according to the present invention is installed in a clean room of an operating room.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

3 is a front view showing the structure of a clean air-conditioning unit according to a preferred embodiment of the present invention, FIG. 4 is a side view showing the structure of a clean air-conditioning unit according to a preferred embodiment of the present invention, Fig. 2 is a plan view showing the installation structure of the first embodiment.

The clean air conditioning unit according to the present invention comprises a case 110, a blower 120, and a filter 130.

The case 110 includes a vertical layer flow type mixing chamber 111 and a left and right layer flow type mixing chamber 112 and a filter chamber 113. The case 110 includes a vertical flow type mixing chamber 111, 112, and the filter chamber 113 is positioned below the left and right layer flow mixing chambers 112. [

An air conditioning air inlet port 114 and a circulating air inlet port 115 are formed on the upper surface of the vertical layer flow mixing chamber 111. The air conditioning air inlet port 114 and the circulating air inlet port 115 are spaced apart from each other And is configured to have a structure and a shape that are mutually symmetrical with respect to the center of the vertical layer flow type mixing chamber 111. [

The air conditioning air inlet 114 and the circulating air inlet 115 are respectively provided with a damper (not shown) for interrupting the flow of air.

The circulation air inlet 115 is a portion where all or a part of the air discharged from the clean room flows into the circulation air inlet 115, The air conditioning air inlet 114 and the circulating air inlet 115 are parallel to each other and the air conditioning air and the circulating air introduced through the two inlets are sucked in parallel from top to bottom, It is possible to prevent the collision of the two fluids, thereby eliminating the swirling and reverse flow phenomenon of the fluid and minimizing the static pressure loss and the noise.

Between the air conditioning air inlet 114 and the circulating air inlet 115, there is provided an induction vane 116 for guiding the two fluids introduced through the two inlets 114 and 115 to flow down without colliding with each other .

The induction vane 116 is installed in the ceiling of the vertical layer flow type mixing chamber 111 so as to be positioned between the air conditioning air inlet 114 and the circulation air inlet 115 and extends from the ceiling of the vertical layer flow type mixing chamber 111 The cross-sectional area gradually decreases from the ceiling of the vertical layer flow mixing chamber 111 to the lower portion thereof, so that the cross-sectional structure of the upper chamber is formed.

The induction vane 116 having the sectional structure of the upper light beam has a cross sectional structure in which the vortex is prevented from being generated between the air conditioning air inlet 114 and the circulating air inlet 115, As shown in Fig.

The left and right laminar flow type mixing chambers 112 are spaces formed in the lower part of the vertical laminar flow mixing chamber 111 and are partitioned by a partition wall 117 into a vertical laminar flow mixing chamber 111, And an air communication port 117a is formed in the central portion so that the air flowing into the vertical layer flow type mixing chamber 111 can flow into the left and right layer flow type mixing chamber 112. [

According to a preferred embodiment of the present invention, an air induction part 118 is further formed in the periphery of the air communication port 117a to guide the flow of the air flowing into the air communication port 117a in the vertical direction.

The air induction part 118 has a dendrite shape protruding upward from the upper surface of the partition wall 117 and has a circular ring shape extending along the circumference of the air communication opening 117a, So that the area of the air flow path gradually decreases toward the lower side.

The air induction unit 118 stabilizes the flow of air so that the air flowing into the vertical layer flow type mixing chamber 111 flows into the left and right layer flow type mixing chambers 112 from the top to the bottom, .

The filter chamber 113 is a space formed in a lower portion of the left and right layer flow type mixing chamber 112 and is separated from the left and right layer flow type mixing chamber 112 based on the bottom surface of the blower 120.

In the case 110 constituting the vertical layer type mixing chamber 111, the left and right layer flow type mixing chamber 112 and the filter chamber 113 as described above, noise generated during the flow of the air or operation of the blower A sound absorbing material M is embedded in the wall constituting the vertical layer flow type mixing chamber 111 and the wall constituting the right and left layer flow type mixing chamber 112 in order to minimize noise transmitted to the outside.

The blower 120 is installed inside the mixing chamber 112 to generate a flow of air. The blower 120 according to the present invention introduces air through a central upper portion of the mixing chamber 112, .

The blower 120 according to the present invention has a plurality of blades 123 formed on the outer circumferential surface of a cylindrical fan body 121 in a radial configuration and a motor 122 is installed at the center of the fan body 121 .

The blower 120 is disposed at a vertically lower portion of the air communication port 117a formed in the partition 117 and is fixed to the bottom of the partition 117 or a second adjusting vane 150, As shown in FIG.

The filter 130 is disposed inside the filter chamber 113 to finally filter the suspended substances contained in the air discharged into the clean room. The filter 130 is composed of a known HEPA filter .

In the clean air conditioning unit constructed as described above, the first adjusting vane 140 and the second adjusting vane 150 for further stabilizing the flow of air can be further included.

The first adjustment vane 140 guides the air discharged in the circumferential direction of the blower 120 in one direction and is disposed on a side portion of the blower 120 and faces the side of the blower 120, And a guide surface 141 for guiding the flow of the fluid in one direction.

Meanwhile, the guide surface 141 may be formed in a plane structure inclined in a direction to induce the flow of air or may be formed in a curved surface structure.

The two first adjustment vanes 140 are disposed in point symmetry with respect to the center point C of the blower 120 and the first adjustment vanes 140 140 induce air in any one of the inner side directions forming the left and right laminar mixing chambers 112 and the other one of the first adjusting vanes 140 induces air in the inner side direction located on the opposite side to the inner side do.

According to a preferred embodiment of the present invention, the left and right laminar mixing chambers 112 have a rectangular planar structure including a front side 112a, a rear side 112b, a left side 112c and a right side 112d. And one of the two first adjustment vanes 140 is disposed in close contact with the rear side surface 112b to guide the air discharged from the blower 120 toward the left side surface 112c And the other one of the first adjustment vanes 140 is configured to closely contact the front side face 112a to guide the air discharged from the blower 120 toward the right side face 112d.

In addition, the first adjustment vane 140 is configured to directly collide with the discharged air from the blower 120, and a sound absorbing material M is built in to reduce noise.

The second adjusting vane 150 further guides the flow of the air discharged in the lateral direction of the blower 120 and is disposed to be positioned on the bottom surface of the blower 120 so that the left and right bed flow mixing chambers 112, (113).

The second adjusting vane 150 is formed of a flat board having a rectangular planar structure and two opposing sides 150a and 150b are formed on the inner surface of the case 110 And the remaining two sides 150c and 150d are installed to be spaced apart from the inner surface of the case 110 (left and right sides of the left and right layer flow type mixing chambers).

According to the second adjustment vane 150, the air discharged from the side surface of the blower 120 flows horizontally along the upper surface of the second adjustment vane 150, and then flows into the second adjustment vane 150, And flows into the filter chamber 113 through the passages formed between the left and right side surfaces 112c and 112d of the laminar mixing chamber 112. [

On the other hand, the second adjusting vane 150 also has a direct contact with the discharged air, and is constructed so that a sound absorbing material M is embedded to reduce noise.

In addition, the second adjusting vane 150 may be fixed to the case 110 by means of fixing means such as a bolt.

A process of blowing the air-conditioning air and the circulating air into the clean room after the clean air-conditioning unit according to the present invention configured as described above will be described, and the operation and effect of the clean air-conditioning unit according to the present invention will be clearly described do.

FIG. 6 is a front view showing an air flow structure formed inside a clean air-conditioning unit according to the present invention, and FIG. 7 is a plan view showing an air flow structure formed around a blower according to the present invention.

The clean air-conditioning unit according to the present invention sucks the air conditioning air (A1) and the circulating air (A2) by the operation of the blower (120) installed in the left and right layer flow type mixing chamber (112) And the circulating air are introduced into the vertical layer flow type mixing chamber 111 through the air-conditioning air inlet port 114 formed at the upper end of the case 110 and the circulating air inlet port 115, respectively.

Since the air-conditioning air inlet 114 and the circulating air inlet 115 are parallel to each other, the air-conditioning air and the circulating air are injected into the vertical-flow-type mixing chamber 111 in the same direction and in parallel, The collision between the circulating air and the air-conditioning air can be prevented.

The induction vane 116 formed between the air conditioning air inlet 114 and the circulating air inlet 115 suppresses generation of vortices between the air conditioning air injected into the vertical layer flow mixing chamber 111 and the circulating air. .

As described above, the two air flows into the vertically layered mixing chamber 111 in parallel from the same direction, and suppresses the generation of eddy currents between the two air streams, thereby reducing the static pressure loss, There is an advantage that noise caused by flow collision or vortex can be minimized.

The air conditioning air and the circulating air flowing into the vertical layer flow type mixing chamber 111 are flowed through the air induction unit 118 and the air communication port 117a provided in the partition 117 to form the flow path of the bell mouth structure, And enters the mixing chamber 112.

In the course of the air flow, the air induction unit 118 induces the air flowing from the vertical layer flow type mixing chamber 111 to the left and right layer flow type mixing chamber 112 to stably maintain the flow from the top to the bottom Likewise, the occurrence of static pressure loss and noise can be reduced.

Meanwhile, the air flowing into the left and right laminar flow type mixing chambers 112 flows into the central portion of the blower 120, and then is discharged from the front side of the blower 120.

A part of the air discharged from the front side of the blower 120 flows along the guide surface 141 of the first adjustment vane 140 provided in the left and right layer flow mixing chamber 112, The air discharged from the side surface of the blower 120 flows into the right and left flow mixing chambers 112 in the left and right directions, And flows in the inner side direction located on both sides.

In this way, the first adjusting vane 140 is provided on the side surface of the blower 120, so that a part of the air to be discharged is not directly discharged to the near side of the chamber, but flows through the passage formed on the opposite side to the filter chamber 113 So that it is possible to eliminate the swirling and staying phenomenon of air generated in the blind chamber in the left and right laminar mixing chambers 112 and to induce the flow of air from the vortex to the laminar flow to reduce the noise, So that the blowing efficiency can be increased.

In addition, the second adjustment vane 150 installed on the bottom of the blower 120 can maintain the horizontal flow for a certain period without the air discharged from the blower 120 directly downward, There is an advantage to be able to.

The air flowing through the passage formed between the left and right laminar flow mixing chambers 112 and the second adjusting vanes 150 flows into the filter chamber 113 and flows into the filter chamber 113 through the HEPA filter 113, (130), and is then injected into the clean room.

As described above, the clean air conditioning unit according to the present invention improves the flow structure of air to minimize generation of static pressure loss and noise, thereby reducing power consumption and enabling a more quiet air conditioning environment do.

8 is a plan view showing a structure in which a clean air-conditioning unit according to the present invention is installed in a clean room of an operating room.

The clean air conditioning unit according to the present invention eliminates the blower made of the sirocco fan and improves the structure of the clean air-conditioning unit so that the blower and the filter have a vertical arrangement structure using the blower of the side discharge type, It can be reduced to 60% compared with the conventional one, thereby saving space when installing the product.

In particular, as shown in FIG. 8, in the case of being installed on the ceiling of the operating room, since the unshakable light L can be disposed in the vicinity of the surgical table located at the center of the operating room, And it is possible to increase the efficiency of the operation.

In addition, in a clean room of a laboratory or an industrial facility, it is possible to maximize flexibility and usability by reducing interference with peripheral equipment.

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 as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Description of the Related Art
110: Case 111: Vertical layer flow type mixing chamber
112: right and left laminar mixing chamber 113: filter chamber
114: Air conditioning air inlet 115: Circulating air inlet
116: induction vane 117: bulkhead
117a: air communication port 118: air induction portion
120: blower 130: filter
140: first adjustment vane 141: guide surface
150: second adjustment vane

Claims (10)

A mixing chamber of a vertical layer flow type in which an air conditioning air inlet and a circulating air inlet are formed, a left and right layer flow mixing chamber connected to the vertical layer flow type mixing chamber and communicating with the vertical layer flow type mixing chamber, A case including a filter chamber formed at a lower portion of the flow-type mixing chamber and connected to allow air communication with the left and right layer flow-type mixing chamber;
An air blower installed in the left and right laminar flow type mixing chambers for introducing air through a central upper portion and discharging air around a side surface; And
And a filter installed in the filter chamber for filtering foreign substances contained in air discharged from the filter chamber to the clean room. The method according to claim 1,
Wherein the air conditioning air inlet and the circulation air inlet are formed in parallel with each other on the upper surface of the vertical layer flow type mixing chamber so that the two fluids flow in parallel from the upper portion to the lower portion. Air conditioning unit. The method of claim 2,
The mixing chamber is located between the air-conditioning air inlet and the circulating air inlet, and protrudes downward from the ceiling of the vertical-layer mixing chamber. The area of the mixing chamber gradually decreases toward the lower portion and flows into the air-conditioning air inlet and the circulating air inlet Further comprising: an induction vane for guiding the two fluids; and a low noise clean air conditioning unit of the layer flow type mixing chamber structure. The method according to claim 1,
A partition wall formed between the vertical layer flow type mixing chamber and the left and right layer flow type mixing chamber and partitioning the vertical layer flow type mixing chamber and the left and right layer flow type mixing chamber and having an air communication port at the center; And
And an air induction part protruding upward from an upper surface of the partition wall and extending along a circumference of the air communication port and forming a bell mouth structure flow path whose surface gradually decreases in a downward direction Low noise clean air conditioning unit with layered mixing chamber structure. The method according to claim 1,
Further comprising a first adjustment vane installed inside the left and right layer flow type mixing chamber so as to be positioned adjacent to the side surface of the blower and having a guide surface for guiding air from one side of the blower to one direction,
Wherein the first adjustment vane is composed of two, and the two first adjustment vanes are formed in point symmetry with respect to a center point of the blower. The method according to claim 1,
And a second adjusting vane positioned at a lower portion of the blower and guiding the air flowing out from the side surface of the blower to flow in a horizontal direction without flowing directly to the lower portion. Unit. The method of claim 6,
Wherein the second adjustment vane is assembled to the case in a detachable manner. The method according to claim 1,
Wherein the walls of the case forming the vertical layer flow type mixing chamber and the left and right layer flow type mixing chambers have a sound absorbing material embedded therein. The method of claim 5,
Wherein the first adjustment vane has a sound absorbing material built therein. The method of claim 6,
Wherein the second adjustment vane has a sound absorbing material built therein.
KR1020150127636A 2015-09-09 2015-09-09 Fan filter unit having laminar flow mixing chamber KR101573451B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217281B1 (en) 1999-06-30 2001-04-17 Industrial Technology Research Institute Low-noise fan-filter unit
EP1398575B1 (en) 2002-08-23 2008-12-31 Kyodo-Allied Industries Ltd Apparatus for minimising noise from a fan unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6217281B1 (en) 1999-06-30 2001-04-17 Industrial Technology Research Institute Low-noise fan-filter unit
EP1398575B1 (en) 2002-08-23 2008-12-31 Kyodo-Allied Industries Ltd Apparatus for minimising noise from a fan unit

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