JPH0515928Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention consists of a plurality of clean units connected in series, each consisting of a top plate covering the opening of a filter device with a semicircular cross section and an opening at the top. The present invention relates to a support structure for a ceiling-mounted clean unit.

[Conventional technology]

BACKGROUND ART Conventionally, as a clean room, a full laminar flow type (full ceiling blowing type) shown in FIG. 8 and a conventional type (partial blowing type) shown in FIG. 9 are known.

In the full-surface laminar flow system, as shown in Figure 8, a ceiling chamber Tc is installed in the entire upper part of the clean room R, a HEPA filter (High Efficiency Particulate Airfilter) is installed as a filter H on the entire lower surface of the ceiling chamber Tc, and it is installed outside. The ceiling chamber Tc and the clean room R are communicated by the blower F and the air duct Ds, and the blower F allows the circulating air a to pass through the filter H, thereby increasing the cleanliness of the circulating air a, and increasing the cleanliness of the circulating air a. A descending laminar flow is blown out to R.

In addition, in the conventional method, as shown in Figure 9, a ceiling board is stretched over the top of the clean room R.
A plurality of filter chambers Hc with filters H provided on the bottom surface are arranged at required locations of Tb, and each branched air duct Ds is guided, and a blower F connected to this air duct Ds is used. , clean air a with increased cleanliness is blown out partially downward into the clean room R.

When these filters H are connected in the full-surface laminar flow system and the conventional system, they are sealed to prevent air from leaking from each connection.

For example, a channel seal system used in a full-surface laminar flow system is shown in FIG. 10, and the seal structure will be explained based on this. An outer flange F is provided on the side of the filter H, and the outer flange F is fitted into a container B filled with a sealant S. Each container B is supported by being connected to an outer flange F or by being fixed to a wall surface or the like.

In the seal structure X thus formed, when air flows toward the filter H as shown by the arrow,
Gap Y between each filter H and filter H and wall surface W
Container B filled with sealant S in the gap Z between
is located so there is no leakage into the room. Therefore, the air will flow into the room after passing through the filter H and being purified.

However, in the conventional filter H connection structure, the filter H is provided with an outer flange F and the outer flange F is fitted into the container B filled with the sealant S. B
It is necessary to protrude toward the indoor side, which may impede the flow of clean air a. Furthermore, since it is necessary to connect the filter H and attach the container B separately, there is a problem in that the installation work of the filter device becomes extensive.

In order to solve such problems, the inventor of the present invention
We devised a connection structure for a ceiling-mounted clean unit as shown in Figures 11 to 15.

In these figures, 1 represents a ceiling-mounted clean unit with a semicircular cross section.

This ceiling-mounted clean unit 1 filters the supplied air and blows clean air into the room.
HEPA filter 2 is installed. This HEPA
The filter 2 has an expanded metal 3 attached to the front side and a punched metal 4 attached to the inside so that the cross-sectional shape is approximately semicircular. As this HEPA filter 2, a clean room air filter without a separator is used. In the HEPA filter 2, molded support fittings are attached at predetermined intervals to maintain the filter shape. Further, a top plate 6 is attached to the top of the ceiling-mounted clean unit 1 to cover the opening 5. This top plate 6 is provided with a mounting bracket 7 for support.

In addition, at both ends of the ceiling-mounted clean unit 1,
Inner flanges 8 and 9 having a substantially semicircular cross-sectional shape
is installed. As shown in FIG. 12, one inner flange 8 has an annular groove 8a formed along its wall surface. This annular groove 8
A is made of a soft material such as neoprene sponge. Also, the other inner flange 9
As shown in FIG. 13, an annular convex portion 9a having a shape that can be inserted into the annular groove 8a is provided along the wall surface of the annular convex portion 9a.
is formed. The annular convex portion 9a is made of a hard material such as neoprene rubber.

Further, the inner flanges 8 and 9 are provided with an annular groove 8a.
A positioning protrusion 9b and a recess 8b are provided outside the portion where the annular protrusion 9a and the annular protrusion 9a are provided, respectively.
They are provided one by one. In this example, a recess 8b is provided on the inner flange 8 side, and a protrusion 9b is provided on the inner flange 9 side.

In such a connection structure for ceiling-mounted clean units, first, as shown in FIG. 15, the annular groove 8a on the inner flange 8 side of one of the ceiling-mounted clean units 1 to be connected is filled with a sealant 10. . The annular protrusion 9a on the inner flange 9 side of the other ceiling-mounted clean unit 1 to be connected is arranged so as to face the annular groove 8a, and the positioning recess 8b on the inner flange 8 side and the inner flange 9 The side protrusions 9b are arranged so as to face each other. Next, when the ceiling-suspended clean units 1, 1 are brought close to each other, as shown in FIG. At the same time as fitting into the groove 8a, the positioning protrusion 9b is fitted into the recess 8b.

As shown in FIG. 14, when the positioning recess 8b and the protrusion 9b are fitted together, both ceiling-suspended clean units 1, 1 cannot come closer to each other, and in this state, the two are connected. become. At this time, as shown in FIG. 14, the sealant 10 filled in the annular groove 8a overflows and the annular groove 8a
The fitting portion between a and the annular convex portion 9a is sufficiently sealed so that the fitting portion becomes airtight.

As described above, according to the connection structure of this ceiling-suspended clean unit, after filling the annular groove 8a provided in one of the ceiling-suspended clean units 1, 1 connected in series, An annular groove 8a and an annular convex portion 9a provided in the annular groove 8a, and a positioning recess 8.
The ceiling-mounted clean units 1, 1 can be connected accurately by arranging the protrusions 9b and 9b to face each other and fitting them together.

Moreover, unlike the conventional connection method, the flanges do not protrude at the connection between the ceiling-mounted clean units 1 and 1, so the clean air blown from the HEPA filter 2 is passed through the flanges. There is no need to worry about getting in trouble. Further, since the sealing agent 10 is supported by the connecting surface, there is no need for complicated operations such as providing a separate part for attaching a container for filling and holding the sealing agent as in the conventional system.

[The problem that the idea aims to solve]

However, in the connection structure of such a ceiling-suspended clean unit, since the ceiling-suspended clean unit 1 has a long shape, the central part of the ceiling-suspended clean unit 1 may bend downward due to changes over time. , a gap is formed between the inner flange 8 and the inner flange 9,
There is a possibility that the fitting between the annular groove 8a and the annular protrusion 9a may be broken.

The present invention was devised to solve these conventional problems, and its purpose is to provide a support structure for ceiling-mounted clean units that can reliably maintain the connection between clean units. be.

[Means to solve the problem]

The support structure for a ceiling-suspended clean unit according to claim 1 includes a plurality of clean units connected in series, each of which is formed by a top plate covering the opening of a filter device having a semicircular cross section with an opening at the upper surface. In a ceiling-mounted clean unit in which each of the clean units is supported on a ceiling panel, each of the clean units is supported on the ceiling panel so as to be movable in the axial direction of the clean unit, and
The connecting end faces of each of the clean units are pressed against each other by a pressing device.

The support structure for a ceiling-suspended clean unit according to claim 2 is such that, in the support structure for a ceiling-suspended clean unit according to claim 1, a support structure for a ceiling-suspended clean unit is provided on the upper surface of the ceiling panel, and
A reinforcing member is fixed along the clean unit, and this reinforcing member is suspended and supported on the ceiling of the building.

[Effect]

In the support structure for the ceiling-suspended clean unit recited in claim 1, when each clean unit is pressed by a pressing device, the clean unit moves in the axial direction of the clean unit along the ceiling panel, and the connecting end faces of each clean unit are pressed against each other.

In the support structure for a ceiling-suspended clean unit according to claim 2, a reinforcing member is fixed to the top surface of the ceiling panel and along the clean unit, and this reinforcing member is suspended from the ceiling surface of the building. Supported.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

1 and 2 show a support structure for a ceiling-mounted clean unit according to an embodiment of the present invention, and in the figures, reference numeral 21 indicates the clean unit.

This clean unit 21 is the 11th clean unit mentioned above.
It is constructed almost the same as the clean unit shown in FIGS. 15 to 15.

In this embodiment, three clean units 21 are connected in series, and these clean units 21 are connected to the ceiling panel 2 via rails 23.
5, and is movable in the axial direction of the clean unit 21.

A chamber 29 for supplying conditioned air 27 into the clean unit 21 is arranged on one side of the clean unit 21.

This chamber 29 is fixed to the ceiling panel 25, and a duct 31 is opened on the top surface.

On the other hand, a pressing device 33 for pressing each clean unit 21 toward the chamber 29 is arranged on the other side of the clean unit 21, and the connecting end surfaces 35 of each clean unit 21 are pressed against each other.

A reinforcing member 37 is fixed to the upper surface of the ceiling panel 25 along the clean unit 21, and this reinforcing member 37 is suspended and supported by a hanging bolt 41 on the ceiling surface 39 of the building.

3 to 6 show details of the pressing device 33, and in these figures, reference numeral 43 indicates a reaction force support member, and this reaction force support member 43
The ceiling panel 2 is attached with bolts 45 and nuts 47.
It is fixed at 5.

On the other hand, reference numeral 49 indicates a horizontal beam fixed horizontally to the end plate 51 of the clean unit 21, and vertical beams 53 are fitted into recesses formed in the horizontal beam 49 at predetermined intervals. Fixed.

A pair of bolts 55 are provided on the reaction force support member 43 so as to protrude toward the vertical beam 53.
5 has a through hole 57 formed in the vertical beam 53.
is inserted into.

A double nut 59 is screwed into the middle of the bolt 55, and a spring 61 is disposed in a compressed state between the nut 59 and the vertical beam 53.

FIG. 7 shows the details of the vertical support part of the clean unit 21, and the number 25 in the figure shows the details of the vertical support part of the clean unit 21.
shows a ceiling panel.

A clean unit 21 is arranged below the ceiling panel 25 at intervals, and a pair of support pieces 6 are provided on the upper surface of the clean unit 21.
3 are fixed at predetermined intervals in the width direction.

This support piece 63 is attached to the lower surface of the ceiling panel 25.
It is slidably locked in a guide groove of a rail 67 fixed by a bolt 65.

On the other hand, on the upper surface of the ceiling panel 25, a long reinforcing member 37 with a C-shaped cross section is attached to the clean unit 2.
1 along with a nut 69.

The opening edge of this reinforcing member 37 is connected to a pair of plate members 71
A hanging bolt 55 is fixed to the center of these plates 71 with a nut 73.

Note that the upper end of this hanging bolt 55 is fixed to the ceiling surface 39, as shown in FIG.

In the support structure of the ceiling-mounted clean unit configured as described above, when the nut 59 of the bolt 55 fixed to the reaction force support member 43 of the pressing device 33 is rotated toward the vertical beam 53, the spring 61 The biasing force increases, the vertical beams 57 are strongly pressed toward the clean units 21, and each clean unit 21 moves in the axial direction of the clean units 21 along the rails 67 fixed to the ceiling panel 25. Connection end face 3 of each clean unit 21
5 will be pressed against each other.

Therefore, in the support structure for the ceiling-mounted clean unit configured as described above, each clean unit 21 is supported on the ceiling panel 25 so as to be movable in the axial direction of the clean unit 21, and each clean unit 21 is Since the connecting end surfaces 35 are pressed against each other by the pressing device 33, when each clean unit 21 is pressed by the pressing device 33, each clean unit 21 is moved along the ceiling panel 25 in the axial direction of the clean unit 21. The connecting end surface 35 of each clean unit 21
Since the clean units 21 are pressed against each other, it is possible to reliably maintain the connection between the clean units 21.

In addition, in the support structure of the ceiling-mounted clean unit configured as described above, a reinforcing member 37 is fixed to the upper surface of the ceiling panel 25 and along the clean unit 21, and this reinforcing member 37 is attached to the ceiling surface of the building. Since the ceiling panel 25 is suspended and supported by the ceiling panel 39, the ceiling panel 25 will not be deformed due to changes over time.Therefore, the relative position of the clean unit 21 will not change, and the clean unit 21
It becomes possible to maintain mutual connections more reliably.

In addition, in the embodiment described above, an example was described in which the clean unit 21 was pressed toward the chamber 29 side, but the present invention is not limited to such an embodiment. 33 may be arranged to press the clean unit 21 from both sides.

[Effect of idea]

As described above, according to the support structure for a ceiling-mounted clean unit according to claim 1, each clean unit is supported on the ceiling panel so as to be movable in the axial direction of the clean unit, and the connection of each clean unit is Since the end faces are pressed against each other by the pressing device, when each clean unit is pressed by the pressing device, each clean unit moves in the axial direction of the clean unit along the ceiling panel, and the connection between each clean unit is established. Since the end faces are pressed against each other, there is an advantage that the mutual connection between the clean units can be maintained reliably.

Moreover, according to the support structure of the ceiling-mounted clean unit described in claim 2, on the upper surface of the ceiling panel,
In addition, a reinforcing member is fixed along the clean unit, and this reinforcing member is suspended from the ceiling of the building, which prevents the ceiling panel from deforming over time. There is an advantage that the position does not change, and the connection between the clean units can be maintained more reliably.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the support structure of a ceiling-mounted clean unit according to an embodiment of the present invention. Second
The figure is a front view of FIG. 1. FIG. 3 is a top view of the pressing device in FIG. 1. FIG. 4 is a side view of the pressing device of FIG. 3. FIG. 5 is a directional view of FIG. 3. FIG. 6 is a directional view of FIG. 3. FIG. 7 is a cross-sectional view showing details of the reinforcing member shown in FIG. 1 and its vicinity. FIG. 8 is a front view showing a schematic configuration of a clean room using a conventional full-surface laminar flow system. FIG. 9 is a front view showing a schematic configuration of a conventional conventional clean room. FIG. 10 is an explanatory diagram showing a conventional connection structure of a clean unit. FIG. 11 is a partially cutaway side view showing the connection structure of the ceiling-mounted clean unit. FIG. 12 is a side view of one of the ceiling-mounted clean units in FIG. 11. FIG. 13 is a side view of the other ceiling-mounted clean unit in FIG. 11. FIG. 14 is an enlarged sectional view of the connection structure of the ceiling-mounted clean unit in FIG. 15. FIG. 15 is an enlarged sectional view showing the state before the connection structure of the ceiling-mounted clean unit in FIG. 11 is constructed. Explanation of symbols of main parts, 21... Clean unit, 25... Ceiling panel, 33... Pressing device, 35... Connection end surface, 37... Reinforcement member, 39
...Ceiling surface.

Claims (1)

[Claims for Utility Model Registration] (1) A plurality of clean units each consisting of a top plate covering the opening of a filter device having a semicircular cross section with an opening at the top surface are connected in series, and these clean units are connected in series. In a ceiling-suspended clean unit supported on a ceiling panel, each of the clean units is supported on the ceiling panel so as to be movable in the axial direction of the clean unit, and a pressing device is provided to press the connecting end face of each of the clean units. A support structure for a ceiling-mounted clean unit that is pressed against each other. (2) In the support structure for a ceiling-suspended clean unit according to claim 1, a reinforcing member is fixed to the top surface of the ceiling panel and along the clean unit, and this reinforcing member is suspended from the ceiling of the building. A support structure for a ceiling-mounted clean unit.