KR101956642B1 - Clean room air conditioning system and system ceiling for clean room - Google Patents

Abstract

Disclosed are a clean room air conditioning system and a system ceiling for a clean room. The disclosed clean room air conditioning system comprises: a system ceiling disposed on a ceiling portion of the clean room to divide an inner portion and an upper portion of the clean room, and supplying air to the inner portion of the clean room through selectively disposed air conditioning equipment; and a vertical air duct disposed in the vicinity of the clean room and transferring the air discharged from a lower portion of the clean room to an upper portion of the system ceiling. Moreover, a direction of the air discharged from the vertical air duct can be switched at an angle of 90 degrees or more when the air is introduced to the upper portion of the system ceiling.

Description

{Clean room air conditioning system and system ceiling for clean room}

The clean room air conditioning system and the clean room system sealing are started. More particularly, the present invention relates to a clean room air conditioning system and a clean room system sealing which are configured to mitigate a sudden change of direction of an air flow circulating in a clean room to reduce a pressure loss of an air flow.

In general, a clean room refers to a room in which airborne particles in an indoor air are controlled to a predetermined limit value or less. Such a clean room is generally used for production facilities, laboratories, laboratories, and the like in semiconductors, electronic components, precision instruments or food / It is used in various fields requiring high dust prevention function such as hospital medical facilities.

Among the methods of constructing such a clean room, the most common method is to circulate the indoor air by the air conditioner installed on the ceiling and to allow the room air to pass through the filter inside the air conditioner to remove fine particles such as dust.

Specifically, the air that has escaped from the air conditioner combined with the fan arranged on the ceiling and the high-efficiency particle filtering device passes through the production room, and passes through the tile having the minute through-hole on the bottom. The air in the lower layer is sent to the upper part of the ceiling through the vertical airflow, and the clean air of the clean room is maintained by a series of circulation processes in which clean air of high purity filtered by the high efficiency particle filtering device in the air conditioner is sent to the production room. The power to overcome the pressure loss of the air that occurs in the whole circulation process is the fan inside the air conditioner.

At this time, a system seal is disposed on the ceiling above the clean room. Such a system seal is fixedly disposed on a slab of a ceiling, and a blind panel or a fan filter unit for air blocking is selectively disposed in each of the plurality of ceiling grids constituting the system sealing. Specifically, a system ceiling including a plurality of ceiling grids is mounted on the ceiling of the clean room, and a blind panel, a fan filter unit, and the like are selectively disposed on the openings of the ceiling grids.

A representative example of such a ceiling grid is disclosed in Korean Patent Publication No. 2012-0026222.

However, in the conventional structure, the vertical air flow rate at which the circulating air flow is maximized and the system sealing inlet section are connected at a right angle, and the direction of the airflow flowing into the upper portion of the system seal from the air flow is rapidly switched. Also, due to the structure of the vertical wind direction and the beam and girder located at the upper part of the system sealing connection section, the flow path becomes narrower and the passing wind speed becomes faster, so that the pressure loss is often increased.

One embodiment of the present invention provides a system seal for a cleanroom having sloped corners.

Another embodiment of the present invention provides a clean room air conditioning system including the system seal for the clean room.

According to an aspect of the present invention,

A system sealing arranged in a ceiling portion of the clean room to partition the inside and the upper portion of the clean room and configured to supply air into the clean room through a selectively arranged air conditioner or the like; And

And a vertical air flow direction disposed at a periphery of the clean room and configured to transfer the air discharged from the lower portion of the clean room to the upper portion of the system seal, wherein when the air discharged from the vertical air flow is introduced into the upper portion of the system seal, The air conditioning system comprising:

The system seal may include a first grid assembly disposed in a horizontal direction that is orthogonal to the vertical wind direction and a second grid assembly coupled to the first grid assembly in an inclined manner.

The first grid assembly and the second grid assembly may each include a grid, each of which is independently formed of at least one mold bar and at least one joint joining them.

According to another aspect of the present invention,

A first grid assembly arranged in a horizontal direction; And

And a second grid assembly inclinedly coupled to the first grid assembly.

The first grid assembly and the second grid assembly may include three or more different grids, at least one of the shape of the opening, the size of the opening, and the structure of the joint being independent of each other.

The first grid assembly may include at least one right angle cross joint, at least one right angle tee joint, at least one obtuse angle cross joint, at least one right angle mold bar, and at least one obtuse angle mold bar.

Wherein the first grid assembly comprises a first grid and a second grid, the first grid comprising a first obtuse angle mold bar, a first obtuse angle cross joint, a first right angle mold bar, a first right angle cross joint, Bar, another first right angled cross joint, another first right angled mold bar and another first obtuse angled cross joint are connected in this order to form a rectangular shape, and the second grid has a second right angled mold bar, A second right angle cross bar joint, another first right angle cross bar joint, another third right angle mold bar, and another first right angle cross bar joint, a second right angle cross bar joint, The first grid and the second grid may share one of the second right angle mold bars and two of the first right angle cross joints.

Wherein the first grid assembly further comprises a third grid and the third grid comprises a first obtuse angle mold bar, a second obtuse angle cross joint, a second obtuse angle mold bar, a first obtuse angle cross joint, a second right angle mold bar, 1 < / RTI > rectangular cross bar joint, a first right angle mold bar and another first obtuse angle cross joint are connected and joined together in this order, the first grid and the third grid being connected to one of the first right angled mold bars, One of the first right angle cross joints and one of the first right angle cross joints may be shared with each other.

The second grid assembly may include at least one elbow joint, at least one acute angle tee joint, at least one obtuse angle cross joint, at least one right angle mold bar, at least one acute angle mold bar, and at least one obtuse mold bar .

The fourth grid includes a first acute angle mold bar, an acute angle tee joint, a fourth right angle mold bar, a first obtuse angle cross joint, a first oblique angle joint, and a second obtuse angle joint, A fourth oblique mold bar, another oblong angle mold bar, another fourth oblique mold bar, another fourth oblique mold bar and another further angular tea joint are connected in this order to form a combined shape, said fifth grid comprising a first acute angle mold bar, A fourth oblique angle mold bar, a second obtuse angle cross joint, a first obtuse angle mold bar, a first obtuse angle cross joint, another fourth right angle mold bar and another acute angle joint are connected in this order to form a rectangular shape , The sixth grid comprises a second acute angle mold bar, an elbow joint, another second acute angle mold bar, an acute angle tee joint, a fourth right angle mold bar, a second obtuse angle cross joint, another fourth right angle mold bar, Tee joint Wherein said fourth grid and said fifth grid are arranged in one of said fourth right angle mold bars, one of said first obtuse angle joints and one of said acute angle joints And the fifth grid and the sixth grid share one of the fourth right angle molded bars, one of the second obtuse angle joints, and one of the acute angle joints.

The clean room air conditioning system and the system sealing for a clean room according to an embodiment of the present invention can achieve the following effects.

(1) It is possible to alleviate the sudden change of direction of the air flow rate circulating in the clean room and the supply plenum section, thereby reducing the air flow pressure loss.

(2) The pressure loss can be reduced by securing the passage area of the air flow circulated to the clean room, thereby reducing the velocity of the airflow.

(3) If the fan operation power is reduced by the reduced pressure loss amount or the same pressure loss amount is maintained, the height of the supply plenum can be reduced to reduce the total building floor height.

(4) Air cleanliness can be improved by reducing stagnation of the airflow inside the clean room.

1 is a schematic plan view of a clean room air conditioning system in accordance with an embodiment of the present invention.
2 is a schematic side view of a clean room air conditioning system according to an embodiment of the present invention.
3 is a partial perspective view of a clean room air conditioning system in accordance with an embodiment of the present invention.
4 is a cross-sectional view of the clean room air conditioning system of FIG.
5 is a partial perspective view of a system seal for a clean room in accordance with an embodiment of the present invention.
6A is a cross-sectional view taken along section 1 of FIG.
FIG. 6B is a cross-sectional view taken along section 2 of FIG. 5. FIG.
7 is a partial perspective view of a corner portion of a system seal for a clean room according to an embodiment of the present invention.
8 is a partially enlarged partial perspective view of the corner portion of Fig.
9 is a perspective view (ISO VIEW) and a sectional view (SECTION VIEW) of various joints and various mold bars shown in Figs. 5 to 8. Fig.
FIG. 10 is a diagram showing a cross section of a clean room air conditioning system of FIG. 4 and a flow velocity distribution in a cross section of a comparative clean room air conditioning system corresponding thereto in a comparative form.
FIG. 11 is a view showing a pressure loss of the supply air plenum at the one end surface of the clean room air conditioning system of FIG. 4 and one cross section of the comparative clean room air conditioning system corresponding thereto in a comparative form.
FIG. 12 is a view showing a comparison between the height of the supply plenum in one section of the clean room air conditioning system of FIG. 4 and the corresponding one of the comparative clean room air conditioning systems (when the amount of pressure loss is the same).
FIG. 13 is a diagram showing a cross section of the clean room air conditioning system of FIG. 4 and a size of a stagnation section of the air flow in one cross section of the comparative clean room air conditioning system corresponding thereto in a comparative form.

Hereinafter, a clean room air conditioning system and a clean room system sealing according to an embodiment of the present invention will be described in detail with reference to the drawings.

In the present specification, the term "system sealing" means a composite part in which a fixture or equipment is assembled to a ceiling finish material.

In the present specification, the term " airiness "means a vertical passage configured to transfer the air discharged from the lower portion of the clean room to the upper portion of the clean room. Generally, the circulation air is integrated to form the maximum air volume.

As used herein, the term "grid " means a lattice-like structure having an opening.

"와 같이 본체부와 양측 바닥부가 각각 직각을 이루는 몰드바를 의미한다.Also, in this specification, the term "right angle mold bar"

Quot; as used herein means a mold bar having a body portion and both side bottom portions at right angles.

"와 같이 본체부와 일측 바닥부는 직각을 이루고 본체부와 타측 바닥부는 예각을 이루는 몰드바를 의미한다.Also, in the present specification, the term "acute angle mold bar"

Quot; as used herein means a molded bar having a body portion and a bottom portion at right angles and a body portion and a bottom portion at an acute angle.

" 와 같이 본체부와 일측 바닥부는 직각을 이루고 본체부와 타측 바닥부는 둔각을 이루는 몰드바를 의미한다.Also, in the present specification, the term "obtuse mold bar"

Quot; means a mold bar having a body portion and a bottom portion at right angles and a body portion and a bottom portion at an obtuse angle.

Also, in the present specification, the term "first obtuse angle cross joint" means a joint formed by joining the ends of two right angle mold bars and two obtuse angle mold bars together, wherein a right angle mold bar of one of the right angle mold bars is obtuse- .

As used herein, the term "second obtuse angle cross joint " means a joint configured to couple two ends of two obtuse-angled mold bars and two orthogonal mold bars together, and to connect both of the two orthogonal mold bars at an obtuse angle.

As used herein, "right angle cross joint" means a joint configured to join each end of four right angle mold bars to each other.

As used herein, the term "acute angle tee joint " means a joint configured to join one end of a right angle mold bar and two acute angle mold bars to each other, and to join the one right angle mold bar at an acute angle.

As used herein, the term "elbow joint" means a joint configured to join two ends of two acute angle mold bars or two right angle mold bars to each other.

A clean room air conditioning system according to an embodiment of the present invention includes a system ceiling and a vertical wind direction.

The system sealing is arranged in a ceiling portion of a clean room to partition the inside and the upper portion of the clean room and supply air into the clean room through a fan filter unit or the like selectively disposed.

And the vertical wind direction is disposed at a peripheral portion of the clean room so as to transfer the air discharged from the lower portion of the clean room to the upper portion of the system seal.

The clean room air conditioning system may be configured such that when the air discharged from the vertical airflow is introduced into the system sealing side at an angle of 90 ° or more (for example, 120-150 °, 150-120 °, 130-140 ° or 135 °) Direction. Accordingly, the clean room air conditioning system can reduce (i) the sudden change of direction of the airflow circulating in the clean room, thereby reducing the pressure loss of the airflow, (ii) reducing the fan driving power, The height of the supply plenum can be reduced to reduce the total floor height, and (iii) the purity of the air flow in the clean room can be reduced to improve air cleanliness.

On the other hand, unlike the present invention, when the air discharged from the vertical wind direction is configured to be turned at an angle of 90 ° when the air flows into the system sealing side, the circulating air for maintaining the cleanliness of the clean room passes through the air- A large amount of pressure loss occurs at the inlet to the SUPPLY PLENUM. This is because the greatest amount of circulating air passes through the region where the wind speed is fast and the direction is rapidly changed. In addition, since the flow path of the circulating air is narrowed by the girder or the beam on the upper portion of the supply plenum, the pressure drop at the inlet portion often becomes larger. However, since the air is continuously discharged to the clean room through the fan filter unit (FFU), the circulating air volume passing through the air supply plenum is reduced and the pressure loss per unit section is drastically reduced.

The above-mentioned contents will be described later in detail with reference to FIGS. 10 to 13.

FIG. 1 is a schematic plan view of a clean room air conditioning system according to an embodiment of the present invention. FIG. 2 is a schematic side view of a clean room air conditioning system according to an embodiment of the present invention. 4 is a partial cross-sectional view of the clean room air conditioning system of FIG.

Referring to FIG. 1, a clean room air conditioning system according to an embodiment of the present invention includes a clean room and air conditioners arranged to surround the clean room.

Referring to FIG. 2, in a clean room air conditioning system according to an embodiment of the present invention, air discharged from a clean room through an access floor (ACCESS FLOOR) passes through a ventilation plenum, (Eg, FFU: FAN FILTER UNIT) which is connected to a fan installed in the opening of the system sealing having inclined edges through a supply plenum and a high efficiency particle filtering device And enters the clean room.

Referring to FIG. 3, a clean room air conditioning system according to an embodiment of the present invention may include a system ceiling having an inclined corner, an access floor (ACCESS FLOOR), and a vertical wind direction.

4, a clean room air conditioning system according to an embodiment of the present invention includes a system ceiling system having slanted corners, a fan filter unit (FFU), a dry cooling coil (DCC: DRY COOLING) COIL), an access floor (ACCESS FLOOR), and a vertical wind direction.

The system seal may include a first grid assembly disposed in a horizontal direction that is orthogonal to the vertical wind direction and a second grid assembly coupled to the first grid assembly in an inclined manner.

The first grid assembly and the second grid assembly may each include a grid, each of which is independently formed of at least one mold bar and at least one joint joining them.

The first grid assembly and the second grid assembly may include three or more different grids, at least one of the shape of the opening, the size of the opening, and the structure of the joint being independent of each other.

The first grid assembly may include at least one right angle cross joint, at least one right angle tee joint, at least one obtuse angle cross joint, at least one right angle mold bar, and at least one obtuse angle mold bar.

The second grid assembly may include at least one elbow joint, at least one acute angle tee joint, at least one obtuse angle cross joint, at least one right angle mold bar, at least one acute angle mold bar, and at least one obtuse mold bar .

FIG. 5 is a partial perspective view of a clean room system seal according to an embodiment of the present invention, FIG. 6A is a sectional view taken along section 1 of FIG. 5, FIG. 6B is a sectional view taken along section 2 of FIG. 5, FIG. 7 is a partial perspective view of a corner portion of the system seal for a clean room according to an embodiment of the present invention, and FIG. 8 is a partial perspective view showing a further enlarged corner portion of FIG.

5 and 7, the first grid assembly may include a first grid G1, a second grid G2, and optionally a third grid G3.

5, the first grid G1 includes a first obtuse angle mold bar 11, a first obtuse angle cross joint J1, a first right angle mold bar 12, a first right angle cross joint J2, 2 rectangular orthogonal cross-joint J2, another first right-angled mold bar 12 and another first obtuse-angled cross joint J1 are connected in this order to form a rectangular shape Lt; / RTI > Here, the first right angle mold bar 12 and the second right angle mold bar 13 may be the same or different from each other.

5, the second grid G2 includes a second right angle mold bar 13, a first right angle cross joint J2, a third right angle mold bar 14, a first right angle cross joint J2, Another second right angled mold bar 13, another first right angled cross joint J2, another third right angled mold bar 14 and another first right angled cross joint J2 are connected in this order, And may have a rectangular shape. Here, the second right angle mold bar 13 and the third right angle mold bar 14 may be the same or different from each other.

5, the first grid G1 and the second grid G2 may share one of the second right angle mold bars 13 and two of the first right angle cross joints J2 have.

7, the third grid G3 includes a first obtuse angle mold bar 11, a second obtuse angle cross joint J3, a second obtuse angle mold bar 15, a first obtuse angle cross joint J1, The second right angle mold bar 13, the first right angle cross joint J2, the first right angle mold bar 12 and another first oblong angle cross joint J1 are connected in this order and joined together in a rectangular shape . Here, the first obtuse-angled mold bar 11 and the second obtuse-angled mold bar 15 may be the same or different from each other.

7, the first grid G1 and the third grid G3 include one of the first right angled mold bars 12, one of the first right angled cross joints J2, and one of the first obtuse- One of the joints J1 can be shared with each other.

Also, referring to FIG. 7, the second grid G2 and the third grid G3 may share only one of the first right-angled cross joints J2.

5 and 7, the second grid aggregate may include a fourth grid G4, a fifth grid G5, and a sixth grid G6.

5, the fourth grid G4 includes a first acute angle mold bar 18, an acute angle tee joint J4, a fourth right angle mold bar 17, a first obtuse angle joint J1, a first obtuse angle joint J4, A mold bar 11, another first obtuse angle joint J1, another fourth right angle mold bar 17 and another acute angle tee joint J4 may be connected in this order to form a rectangular shape.

7, the fifth grid G5 includes the first acute angle mold bar 18, the acute angle tee joint J4, the fourth right angle mold bar 17, the second obtuse angle cross joint J3, The obtuse-angled mold bar 11, the first obtuse-angled cross joint J1, another fourth right angled mold bar 17 and another acute-angled tee joint J4 may be connected in this order to form a rectangular shape.

7, the fourth grid G4 and the fifth grid G5 may include one of the fourth right angle molded bars 17, one of the first obtuse angle joints J1, (J4) can be shared with each other.

5, the fourth grid G4 and the first grid G1 may share one of the first obtuse-angled mold bars 11 and two of the first obtuse-angle cross joints J1 have.

7, the fifth grid G5 and the third grid G3 include one of the first obtuse-angled mold bars 11, one of the first obtuse-angle joints J1 and the second obtuse- One of the joints J3 can be shared with each other.

7 and 8, the sixth grid G6 includes the second acute angle mold bar 19, the elbow joint J5, another second acute angle mold bar 19, the acute angle tee joint J4, A fourth right angle mold bar 17, a second obtuse angle cross joint J3, another fourth right angle mold bar 17 and another acute angle tee joint J4 may be connected in this order and connected in a rectangular shape . Here, the first acute angle mold bar 18, the second acute angle mold bar 19, the third acute angle mold bar 20 and the fourth acute angle mold bar 21 may be the same or different from each other.

7, the fifth grid G5 and the sixth grid G6 may include one of the fourth right angle molded bars 17, one of the second obtuse angle joints J3, (J4) can be shared with each other.

Referring to FIG. 7, the sixth grid G6 and the third grid G3 may share only one of the second obtuse-angle cross joints J3.

9 is a perspective view (ISO VIEW) and a sectional view (SECTION VIEW) of various joints and various mold bars shown in Figs. 5 to 8. Fig.

9, the first obtuse-angled cross joint J1, the acute-angled tee joint J4, the second obtuse-angled cross joint J3, the first and second obtuse-angled mold bars 11 and 15, and the first and second , And third and fourth acute angle mold bars 18, 19, 20, and 21 are shown in this order.

In Fig. 9, the angle [theta] 1 of the first obtuse angle cross joint J1 may be 135 [deg.], The angle [theta] 2 of the acute angle joint J4 may be 45 [ Angle 3 of the first and second oblique mold bars 11 and 15 may be 135 and the angle 4 of the first and second obtuse-angled mold bars 11 and 15 may be 135 deg., And the first, second, third, The angle? 5 of the bars 18, 19, 20 and 21 may be 45 degrees. However, the present invention is not limited thereto, and the angles? 1 to? 5 may have various other values as long as they satisfy the obtuse angle condition or the acute angle condition.

Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these embodiments.

Example 1

A computer simulation (Autodesk CFD) was performed on the clean room air conditioning system of FIG.

Comparative Example 1

In the clean room air conditioning system of FIG. 3, a computer simulation (Autodesk CFD) was performed on a comparative cleanroom air conditioning system in which sloping corners were replaced with right angled corners.

Evaluation Example 1: Evaluation of Air Velocity Distribution

As a result of the computer simulation performed in Example 1 and Comparative Example 1, a cross section of the clean room air conditioning system of Fig. 4 and an air stream velocity distribution in one cross section of the comparative clean room air conditioning system corresponding thereto are shown in Fig. Respectively. 10 (a) is a result of Comparative Example 1, and Fig. 10 (b) is a result of Example 1. Fig. 10 and 11, "FAB" refers to various facilities including a ventilation plenum, a vertical air flow, an air supply plenum, and the like for constituting a clean room and a clean room. Refers only to clean rooms.

Referring to FIG. 10, when the corner portion between the vertical wind direction and the supply plenum is formed as an inclined plane as in the first embodiment, when the corner portion is formed as a right angle surface as in Comparative Example 1 It is possible to alleviate the sudden change of direction of the air compared with the case of FIG.

Evaluation example 2: Evaluation of pressure loss

As a result of the computer simulation performed in Example 1 and Comparative Example 1, one end surface of the clean room air conditioning system of Fig. 4 and the pressure loss amount at one end surface of the comparative clean room air conditioning system corresponding thereto are shown in Fig. Respectively. 11 (a) is the result of Comparative Example 1, and Fig. 11 (b) is the result of Example 1. Fig.

11, in the case where the corner portion between the vertical wind direction and the supply plenum is formed as an inclined plane as in the first embodiment, when the corner portion is formed as a right angle surface as in Comparative Example 1 It is possible to mitigate the sudden change of direction of the air compared to the case of the first embodiment, and at the same time, it is possible to secure the flow path, so that the pressure loss can be remarkably reduced.

Evaluation Example 3: Evaluation of the height of the supply plenum

As a result of the computer simulation performed in Example 1 and Comparative Example 1, one end surface of the clean room air conditioning system of FIG. 4 and the height of the supply air plenum at one end surface of the comparative clean room air conditioning system corresponding thereto are shown in FIG. 12 (Where the pressure loss is the same). 12 (a) is a result of Comparative Example 1, and Fig. 12 (b) is a result of Example 1. Fig.

Referring to FIG. 12, when the corner portion between the vertical wind direction and the supply plenum is formed of an inclined plane as in the first embodiment, when the corner portion is formed as a right angle surface as in Comparative Example 1 It can be seen that the height of the supply plenum can be reduced and the total height of the stack can be reduced.

Although it is not shown in the drawings, it was confirmed that, in the case of maintaining the same amount of pressure loss, Example 1 can reduce the width of the vertical wind direction compared with Comparative Example 1, thereby reducing the area required for the construction of the clean room.

Evaluation Example 4: Evaluation of stagnation zone size of airflow

As a result of the computer simulation performed in the embodiment 1 and the comparative example 1, the one end surface of the clean room air conditioning system shown in Fig. 4 and the size of the stagnation section of the air current in one cross section of the comparative clean room air conditioning system corresponding thereto 13. Fig. 13 (a) is the result of Comparative Example 1, and Fig. 13 (b) is the result of Example 1. Fig.

Referring to FIG. 13, when the corner portion between the vertical wind direction and the supply plenum is formed as an inclined plane as in the first embodiment, when the corner portion is formed as a right angle surface as in Comparative Example 1 (Ie, a very disadvantageous area in terms of maintaining cleanliness), such as the corner where the wall and the ceiling meet in the clean room, can be stagnated, which is advantageous in terms of maintaining cleanliness have.

Although the present invention has been described with reference to the drawings and embodiments, it is to be understood that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: System sealing 11 to 21: Molded bar
J1 to J5: joints G1 to G6: grid

Claims (10)

A first grid assembly arranged in a horizontal direction; And
And a second grid aggregate inclinedly coupled to the first grid aggregate,
Wherein the first grid assembly and the second grid assembly each independently include at least three different types of grids, at least one of the shape of the opening, the size of the opening, and the structure of the joint,
Wherein the first grid assembly comprises at least one right angle cross joint, at least one right angle tee joint, at least one obtuse angle cross joint, at least one right angle mold bar and at least one obtuse angle mold bar,
Wherein the first grid aggregate comprises a first grid and a second grid,
Wherein the first grid comprises a first obtuse angle mold bar, a first obtuse angle cross joint, a first right angle mold bar, a first right angle cross bar, a second right angle mold bar, another first right angle cross bar, And another first obtuse angled cross joint are connected in this order and joined together,
Wherein the second grid comprises a second right angle mold bar, a first right angle cross bar, a third right angle mold bar, a first right angle cross bar, another second right angle mold bar, another first right angle cross bar, A mold bar and another first right-angled cross joint are connected in this order to form a combined rectangular shape,
Wherein the first grid and the second grid share one of the second right angle mold bars and two of the first right angle cross joints. The method according to claim 1,
Wherein the first grid aggregate further comprises a third grid,
The third grid includes a first obtuse angle mold bar, a second obtuse angle cross bar, a second obtuse angle bar, a first obtuse angle cross bar, a second right angle mold bar, a first right angle cross bar, 1 < / RTI > oblique cross joints are connected in this order to form a combined rectangular shape,
Wherein the first grid and the third grid share one of the first right angle mold bars, one of the first right angle cross joints and one of the first oblong angle cross joints. The method according to claim 1,
Wherein the second grid aggregate comprises at least one elbow joint, at least one acute angle tee joint, at least one obtuse angle cross joint, at least one right angle mold bar, at least one acute angle mold bar, and at least one obtuse angle mold bar for a clean room System sealing. The method of claim 3,
The second grid aggregate includes a fourth grid, a fifth grid, and a sixth grid,
The fourth grid comprises a first acute angled mold bar, an acute angle tee joint, a fourth right angle mold bar, a first obtuse angle cross joint, a first obtuse angle mold bar, another first obtuse angle cross joint, another fourth right angle mold bar, And another serrated tee joint is connected in this order to form a combined rectangular shape,
Wherein the fifth grid comprises a first acute angled mold bar, an acute angle tee joint, a fourth right angle mold bar, a second obtuse angle cross joint, a first obtuse angle mold bar, a first obtuse angle cross joint, another fourth right angle mold bar, Tee joints are connected in this order to form a combined rectangular shape,
The sixth grid includes a second acute angle mold bar, an elbow joint, another second acute angle mold bar, an acute angle tee joint, a fourth right angle mold bar, a second obtuse angle cross joint, another fourth right angle mold bar, Joints are connected in this order to form a combined rectangular shape,
Wherein the fourth grid and the fifth grid share one of the fourth right angle mold bars, one of the first obtuse angle joints and one of the acute angle joints,
Wherein the fifth grid and the sixth grid share one of the fourth right angle molded bars, one of the second obtuse angle joints and one of the acute angle joints. A system seal for a clean room according to any one of claims 1 to 4, arranged in a ceiling of a clean room to partition the inside and the top of the clean room and supply air into the clean room through an air conditioning system. And
And a vertical air flow direction disposed in the periphery of the clean room and configured to transfer air discharged from a lower portion of the clean room to an upper portion of the system seal. 6. The method of claim 5,
Wherein the clean room air conditioning system is configured to change direction at an angle of 90 ° or more when air discharged from the vertical air flow is introduced into the upper portion of the system ceiling. delete delete delete delete

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