JP4553681B2 - Air outlet and air conditioning method using the same - Google Patents

Description

  The present invention relates to an air outlet of an air-conditioning duct that blows out air-conditioned (hereinafter, air-conditioned) air, such as temperature-humidified air or purified air, to a required place in a room such as a clean room, and an air-conditioning method using the same It is about.

  An air outlet is provided at a required position of the air conditioning duct to distribute and supply the conditioned air to the required place. In general, as shown in FIG. 5, air blowing ports 101 a and 101 b are provided on the wall surface of the air conditioning duct 100 so that air blown through the air conditioning duct 100 is blown into the room from the air blowing ports 101 a and 101 b. Composed. In such an air outlet structure, when the flow velocity in the air conditioning duct 100 is large and the static pressure is low, as shown in the figure, it is difficult for air to blow out from the air outlets 101a and 101b opened on the wall surface of the air conditioning duct 100, and the downstream end The amount of air blown from the air outlet 101a on the upstream side of the air-conditioning duct 100 closed at is small, and the amount of air from the outlet on the downstream end side is large. In order to eliminate such a deviation in the amount of air blown from the plurality of air outlets, a shutter is provided in each of the air outlets 101a and 101b, the shutter opening degree of the downstream air outlet 101b is reduced, and the upstream air By setting the shutter opening degree of the outlet 101a large, the blown air volume is equalized. However, since it is not sufficient to equalize the blown air volume only by adjusting the shutter opening, various forms of air outlet structures have been proposed.

  For example, as shown in FIG. 6, the resistor 105 formed so as to protrude into the flow path between the air outlets 101a, 101b, 101c provided at a plurality of positions of the air conditioning duct 100 whose downstream end is closed. Is formed so that the protruding height of the air is higher toward the upstream side, and the air flowing in the air conditioning duct 100 is blocked by the resistor 105, so that a sufficient amount of blown air can be obtained even at the upstream air outlet 101a. An apparatus is known (see Patent Document 1).

  Further, as shown in FIG. 7, gas distributors in which air flow passages 107 a, 107 b, and 107 c are formed by a partition body 108 with respect to a plurality of air outlets 101 a, 101 b, and 101 c that are opened in the wall surface of the air conditioning duct 100. A duct device in which 109 is provided in an air conditioning duct 100 is known (see Patent Document 2). In this configuration, it is possible to distribute the amount of air flowing to each air outlet 101a, 101b, 101c according to the cross-sectional area of the air flow path partitioned by the partition 108.

Further, as shown in FIG. 8, the inside of the blowout duct 110 is configured as a double duct partitioned into an inner air passage 112 and an outer air passage 113 by an inner duct plate 111, and the outer air passage 113 is formed by the inner duct plate 111. A flow direction that is divided into a plurality of sections in the longitudinal direction, communicates between the partitioned sections and the inner air passage 112, and projects to the air flow adjustment guide 115 and the outer air passage 113 that project to the inner air passage 112 at the communication port portion. An air blowing duct provided with an adjustment guide 116 is known (see Patent Document 3). By adjusting the angles of the air volume adjustment guide 115 and the flow direction adjustment guide 116, the amount of air flowing from the inner air passage 112 to the outer air passage 113 that partitions the blowing duct 110 in the longitudinal direction can be adjusted. It is possible to equalize the amount of air blown into the room from the outer air passages 113 through the outer duct plate 117 formed of a porous plate.
JP 05-005554 A JP 2000-257402 A Japanese Patent Laid-Open No. 09-060959

  In the above-described prior art, in the configuration in which the resistor 105 is formed so as to protrude into the duct, the resistor 105 blocks the flow of air flowing through the duct and generates eddy currents. There is a problem that the loss of blast energy increases with increasing pressure loss. In addition, when the flow rate fluctuates, there is a problem that the distribution of the amount of air blown out from each air outlet 101a, 101b, 101c varies greatly. Moreover, the subject which cannot adjust the ventilation volume with respect to a specific place occurred.

  Further, in the configuration in which the gas distributor 109 is arranged in the duct, it is necessary to provide a partition body 108 that forms an air flow path for each of the air outlets 101a, 101b, and 101c in the duct. As the number of the partition bodies 108 increases, the number of the partition bodies 108 corresponding to the number of the air outlets is provided in the duct cross-sectional direction, so that it becomes difficult to dispose the partition bodies 108 such that the air inlet becomes narrow. There is a problem that the configuration becomes complicated. Therefore, there is a problem that it is difficult to manufacture a duct or a cost is increased, and it is a problem that a pressure loss due to the arrangement of a large number of partition members 108 cannot be ignored. Moreover, the subject which cannot adjust the ventilation volume with respect to a specific place occurred.

  Further, in the configuration in which the inside of the duct is divided into the inner air passage 112 and the outer air passage 113, the entire blowing duct 110 is an air outlet, and the amount of blowing air can be equalized, but the structure is complicated. There is a problem that it is impossible to adjust the air flow rate for a specific place, that is, a plurality of specific places.

  An object of the present invention is to provide an air outlet for an air-conditioning duct that can be easily implemented with a simple structure, such as equalizing the amount of air blown from a plurality of air outlets and increasing the amount of air blow to a required place. And providing an air conditioning method using the same.

In order to achieve the above object, the first invention of the present application is an air outlet that is provided at a required position of an air conditioning duct and blows out air that has been blown through the air conditioning duct to the outside of the air conditioning duct. An air introduction plate disposed in the road so as to form an elevation angle toward the upstream side in the blowing direction, and a blowout hole formed of a perforated plate for blowing out the air introduced by the air introduction plate to the outside of the air conditioning duct; The air introduction plate is rotatably supported at one end of the perforated plate and the elevation angle thereof is adjustable, and is further introduced from the air flow path of the air conditioning duct by the air introduction plate. An opening is formed on the back side where the separation distance of the air introduction plate from the porous plate is reduced so that a part of the air escapes and is returned to the air flow path again. is there. 2. The air outlet according to claim 1, wherein the opening is formed only on a back side where a separation distance between the air introduction plate and the porous plate is small. The air-conditioning duct is configured together with the duct structure, and is provided at a required position of the air-conditioning duct and connected between the plurality of duct structures, and the air blown through the air-conditioning duct is moved outside the air-conditioning duct. An air outlet that blows out, and has a peripheral wall formed in a cross-sectional shape corresponding to the cross-sectional shape of the air flow path of the duct structure, and an elevation angle of a predetermined angle is formed in the peripheral wall with respect to the upstream side in the blowing direction. An air introduction plate disposed; and a blowout hole formed by a hole in a perforated plate provided on a predetermined surface of the peripheral wall for blowing out the air introduced by the air introduction plate to the outside of the air conditioning duct. The introduction plate is attached to the perforated plate so that one end of the introduction plate is pivotable so that the elevation angle can be adjusted. Further, the introduction plate is guided from the air flow path of the air conditioning duct by the air introduction plate. The air is characterized in that an opening is formed on the back side where the separation distance of the air introduction plate from the porous plate is reduced so that a part of the air that has been discharged escapes and is returned to the air flow path again. It is a blower outlet. The air introduction plate has one end pivotally supported by the perforated plate by a hinge structure, and the other end pivotally provided with a pivot plate having a long hole formed through a pivot. The perforated plate is provided with a screw shaft that is screwed into a nut that is slidably fitted into the elongated hole, and is supported by screwing a screw portion, and the screw shaft is provided in the air conditioning duct. The angle of elevation can be varied by rotating it from the outside with a rotating operation means, and the angle of elevation can be changed to an air blowing stop position where the air introduction plate abuts the porous plate and closes the hole of the porous plate. It is set as the air blower outlet as described in any one of Claims 1 thru | or 2 comprised .

According to the above configuration, the air introduction plate is rotatably supported at one end thereof on the perforated plate and the elevation angle thereof is adjustable, and the opening portion is formed on the back side where the separation distance between the air introduction plate and the perforated plate is reduced. Since a part of the air introduced from the air flow path of the air conditioning duct by the air introduction plate escapes from the opening and returns to the air flow path again, an increase in pressure on the back side can be suppressed, It is possible to alleviate the state in which the amount of air blown from the holes is uneven. In addition, the air introduction plate is configured to be able to change the elevation angle up to the air blowing stop position where the air introduction plate contacts the porous plate and closes the hole of the porous plate, so that the air introduction plate rotates to the air blowing stop position where the air introduction plate contacts the porous plate. If you do, you can stop the air blowing from the air outlet, and if you want to stop the air blowing temporarily or if the air blowing is no longer necessary due to some situation change, without having to work on the air conditioning duct It can be easily handled. In addition, air that has been blown through the air conditioning duct is partially blown into the blowout hole by the air introduction plate that is disposed so as to form an elevation angle toward the upstream side in the blowing direction at the position where the air blowout port is disposed. It is introduced and can be blown out of the air conditioning duct through the blowout hole. Moreover, since the air introduction plate is disposed obliquely with respect to the blowing direction, the degree of generating a vortex in the air duct is small, and loss of blowing energy can be suppressed.

  The air introduction plate can be adjusted in the elevation angle so that the amount of air blown from the air outlet can be adjusted. The air introduction plate is provided on the upstream side and the downstream side of the air conditioning duct. The amount of air blown from the air outlet can be equalized, and the amount of air blown from the air outlet arranged at a specific position can be arbitrarily adjusted.

  One end of the air introduction plate is rotatably supported by a hinge structure, and is blown from the air outlet by being configured to be variable in elevation angle angle by being rotated by a rotation operation means from the outside of the air conditioning duct. The air volume can be easily adjusted from the outside of the air conditioning duct.

  In addition, the blowout hole in the above configuration is preferably constituted by a hole in a perforated plate provided on a wall surface substantially parallel to the blowing direction, and an appropriate amount of blown air can be obtained by setting the aperture ratio of the perforated plate. Can do.

  In addition, the porous plate is formed in an open state in which no hole is present on the back side where the separation distance from the air introduction plate disposed with an elevation angle formed thereon is small, so that air having a high flow velocity from the back side is formed. Therefore, the air can be blown out from the entire hole forming portion at a substantially uniform flow rate.

  Further, the perforated plate is blown out from the back side by forming so that the opening diameter of the hole becomes small toward the back side where the separation distance from the air introduction plate arranged with an elevation angle formed thereon becomes small. It can be configured such that air is blown out from the entire perforated plate with a substantially uniform air volume while suppressing the air volume.

  Further, by forming the opening in the air introduction plate, a part of the air introduced from the air flow path by the air introduction plate can be returned to the air flow path, and by setting the opening area and formation position of the opening The state in which the pressure rises on the back side where the separation distance between the perforated plate and the air introduction plate arranged so as to form an elevation angle becomes small, and the state in which the amount of air blown from the blowout holes is biased can be alleviated. .

  Further, by arranging a perforated plate at the inlet portion of the air introduction by the air introduction plate, the flow rate of the air introduced by the air introduction plate can be suppressed, and the air can be blown out in a gentle air flow.

  In addition, by forming a photocatalyst layer on the outer peripheral surface including the blowout holes, organic matter that becomes a source of dirt attached to the blowout holes and the outer peripheral surface can be decomposed by the oxidation action of the photocatalyst, and the air blowout outlet can be prevented from becoming dirty. Effective for preventing contamination in clean rooms.

The plurality invention, which blows temperature and humidity adjustment and / or cleaned air in the extending direction of the air-conditioning duct, and disposed at a required position of the air-conditioning duct according to the air conditioning method using the present Gansora air outlet The air introduced by the air introduction plate disposed in the air flow path and arranged so as to form an elevation angle toward the upstream side in the air blowing direction by the air outlet according to any one of claims 1 to 6. Is blown out of the air conditioning duct from the blowout hole.

  According to the air conditioning method described above, a part of the air flowing through the air flow path of the air conditioning duct can be efficiently introduced into the blowout hole by the air introduction plate, and the plurality of air blowout openings are arranged at the required positions of the air conditioning duct. Thus, an air conditioning system that blows out air to a place where air introduction is required can be configured.

  In the air conditioning method described above, it is preferable that the amount of air blown out of the air conditioning duct from the air outlet of each air outlet is adjustable by adjusting the elevation angle of the air introduction plate, and the amount of air blown from a plurality of air outlets This is effective for making adjustments to equalize the air flow and adjusting the amount of air blown from the air outlet at a specific position.

According to the present invention, one end of the air introduction plate is rotatably supported on the perforated plate and the elevation angle is adjustable, and the opening is formed on the back side where the separation distance between the air introduction plate and the perforated plate is reduced. Since a part of the air introduced from the air flow path of the air conditioning duct by the air introduction plate escapes from the opening and returns to the air flow path again, an increase in pressure on the back side can be suppressed, It is possible to alleviate the state in which the amount of air blown from the holes is uneven. In addition, the air introduction plate is configured to be able to change the elevation angle up to the air blowing stop position where the air introduction plate contacts the porous plate and closes the hole of the porous plate, so that the air introduction plate rotates to the air blowing stop position where the air introduction plate contacts the porous plate. If you do, you can stop the air blowing from the air outlet, and if you want to stop the air blowing temporarily or if the air blowing is no longer necessary due to some situation change, without having to work on the air conditioning duct It can be easily handled. In addition, part of the air flowing in the air conditioning duct can be efficiently introduced into the air outlet by the air introduction plate and blown into the room from the outlet hole, and it is difficult to generate vortex in the air flow path in the air conditioning duct. It is effective for the configuration of an air conditioning system with little pressure loss and easy adjustment of the amount of air blown from a plurality of air outlets.

  FIG. 1 shows a basic configuration of an air outlet 1 according to the embodiment. As shown in FIG. 2, the air outlet 1 is arranged at a required position of the air conditioning duct 10 and blows air in the air conditioning duct 10 in the arrow direction. The air is blown out from the air outlet 1 into the room.

  The air outlet 1 has a peripheral wall 3 formed in a cross-sectional shape corresponding to the cross-sectional shape of the air flow path of the air-conditioning duct 10 and an elevation angle of a predetermined angle with respect to the upstream side in the blowing direction in the peripheral wall 3. The air introduction plate 2 is provided. Here, in order to correspond to the air-conditioning duct 10 having a rectangular cross-sectional shape, the peripheral wall 3 is formed in a rectangular cross-sectional shape, and the surface from which air is blown out toward the room is a perforated plate (blowout) Hole) 3a, and the air introduction plate 2 is disposed on the perforated plate 3a. The perforated plate 3a is formed with holes having a diameter of 1 to 10 mm, preferably 1 to 5 mm so that a required opening ratio can be obtained, and punching metal or the like having an opening ratio of 25 to 35% is applied. can do.

  As shown in FIG. 2, the air outlet 1 having the above-described configuration is required to blow out air as shown in FIG. 2 when the air conditioning duct 10 constructed to supply temperature-humidity-adjusted and / or purified air is supplied to the room. It arrange | positions so that it may interpose between the ventilation flow paths of the air-conditioning duct 10 of a position. Here, as shown in FIG. 1, since the flange 4 is formed at both ends of the peripheral wall 3, by joining with the flange 11a formed in the duct structure 11 formed in a predetermined length, The air flow path as the air conditioning duct 10 is constructed, and part of the blown air passing through the air outlet 1 is guided to the porous plate 3a side by the air introduction plate 2 and blown into the room from the hole of the porous plate 3a. A function as the outlet 1 is formed.

  The air blown out from the perforated plate 3a into the room has a small height dimension between the perforated plate 3a and the air introducing plate 2 because the air introducing plate 2 forms an elevation angle on the perforated plate 3a. The pressure increases on the back side and the flow rate of the air blown out from the hole increases, and the air discharge flow rate over the entire surface of the porous plate 3a is biased. When this becomes an obstacle, the perforated plate 3a does not form a hole on the entire surface, but a plate that does not form a hole on the back side where the height dimension between the air introducing plate 2 is small can be used. . Moreover, the opening diameter of many holes formed in the porous plate 3a can also be formed so small that it reaches the back side where the height dimension between the air introduction plates 2 becomes small.

  As shown in FIG. 1, when the opening 15 is formed on the back side where the separation distance between the air introduction plate 2 and the porous plate 3 a becomes small, the air introduction plate 2 introduces the air introduction plate 2 from the air flow path of the air conditioning duct 10. Since part of the air escapes from the opening 15 and is returned to the air flow path, an increase in pressure on the back side can be suppressed. The opening 15 can be set to the most preferable pressure state on the back side by adjusting and setting the opening area and the formation position.

  In addition, the air inlet portion opened in the air flow path by the air introduction plate 2 is closed with a porous plate material in which a large number of holes are formed in the same manner as the porous plate 3a, so that the flow velocity of the inflowing air passes through the holes. Since it is suppressed by the resistance, the flow velocity of the air flowing into the space formed between the air introduction plate 2 and the porous plate 3a is reduced, and a state where the air is blown out from the porous plate 3a as a gentle blowing flow velocity is obtained. Can do. In places where fine processing is performed such as in a clean room, it is preferable to supply clean air at a gentle flow rate because the strong flow of supplied conditioned air may interfere with work. Become.

  As shown in FIG. 2, when a plurality of air outlets 1 are arranged at required intervals in the extending direction of the air conditioning duct 10, the air conditioning duct whose downstream end is closed when the angle of the air introduction plate 2 is constant. The amount of air blown from the air outlet 1 arranged on the downstream side of 10 is large, and the amount of air blown from the air outlet 1 arranged on the upstream side becomes small. Further, the amount of air blown out from each air outlet 1 cannot be adjusted. Therefore, as shown in FIG. 3, it is preferable to provide an angle adjusting mechanism 5 that adjusts the elevation angle of the air introduction plate 2 that forms an elevation angle with respect to the upstream side in the blowing direction.

  In FIG. 3, the angle adjustment mechanism 5 is configured to be able to adjust the elevation angle of the air introduction plate 2 whose base is attached to the porous plate 3 a by the hinge structure 6. In the angle adjusting mechanism 5 shown here, sliding is performed in the longitudinal direction of the long hole 20a formed in the rotating plate 20 pivotally provided on the swing support 18 attached to the tip of the air introducing plate 2 via the pivot 19. A threaded portion of a screw shaft 8 that is pivotally supported by the porous plate 3a is screwed into a nut 7 that is inserted in a movable and non-rotatable manner so that the screw shaft 8 can be rotated from the outside of the porous plate 3a by an adjustment knob 9. When the adjustment knob 9 is rotated, the screwing height position of the nut 7 with respect to the screw shaft 8 changes, so that the elevation angle angle of the air introduction plate 2 connected from the nut 7 via the rotating plate 20 is changed. Changes. That is, since the opening angle of the air introduction plate 2 that takes air into the perforated plate 3a from the air flow path changes, the amount of air that flows through the air conditioning duct 10 can be freely adjusted, and each air blower can be freely adjusted. It is possible to arbitrarily adjust the amount of air blown from the outlet 1.

  In the above configuration, when the angle of the air introduction plate 2 changes, the distance between the swing support plate 18 attached to the tip of the air introduction plate 2 and the screw shaft 8 changes, and the rotation plate 20 and the air introduction plate 2 are changed. Since the connection angle also changes, as shown in FIG. 3 (b), the rotating plate 20 has the nut 7 slidably inserted into the elongated hole 20a in order to cope with the change in distance and change in angle. A pivot 19 fixed to one end of the rotating plate 20 is rotatably supported by the swing support plate 18. With this configuration, even if the angle of the air introduction plate 2 is changed from the angle position at which the maximum amount of air is blown from the perforated plate 3a to the air blowing stop position that closes the hole of the perforated plate 3a indicated by the broken line, the angle adjusting mechanism 5 and the air introduction The connection state with the plate 2 is kept constant.

  As shown by the broken line in FIG. 3, when the air introduction plate 2 is rotated to the air blowing stop position at which it contacts the perforated plate 3 a by the angle adjusting mechanism 5, the air blowing from the air blowing port 1 can be stopped. When it is desired to temporarily stop the air blowing or when the air blowing becomes unnecessary due to some situation change, it is possible to easily cope with the air conditioning duct 10 without performing construction. The configuration of the angle adjustment mechanism 5 shown in FIG. 3 is an example, and the elevation angle of the air introduction plate 2 can be adjusted using a pantograph structure or a link structure.

  The air outlet 1 described above is configured such that it can be disposed by joining the flanges 4 and 11a between the duct components 11 constituting the air conditioning duct 10, but the joint with the duct components 11 is flange 4 The air outlet 1 can be disposed at a required position of the air conditioning duct 10 by a structure in which both ends of the peripheral wall 3 are fitted into the adjacent duct structure 11.

  Moreover, as shown in FIG. 4, without providing the surrounding wall 3, it can also be comprised as the air blower outlet 1a which attached the air introduction plate 2 to the perforated plate 3a so that angle adjustment was possible. By forming the mounting opening 18 capable of fitting and fixing the air outlet 1a on the air outlet surface of the air conditioning duct 10 formed in a rectangular cross section, and fixing the air outlet 1a to this opening and closing the opening, An air outlet 1 a can be provided at a required position of the air conditioning duct 10.

  In addition, it is preferable to provide a photocatalyst layer on the outer peripheral surface of the peripheral wall 3 including the perforated plate 3a, and the organic matter that is the source of the attached dirt is decomposed by the oxidizing action of the photocatalyst layer by ultraviolet rays contained in illumination light such as a fluorescent lamp. Can be made. Therefore, it is effective for preventing the air outlet 1 from being contaminated and preventing contamination in the clean room in which air is supplied from the air outlet 1.

  The air outlets 1 and 1a shown in the embodiment are configured to correspond to the air-conditioning duct 10 having a rectangular cross section, but can be similarly applied when the air-conditioning duct 10 has a circular cross section. That is, the air introduction plate 2 is formed by forming the air introduction plate 2 formed in a semi-elliptical shape on the porous surface by forming a plurality of small-diameter holes on the required circular arc surface of the peripheral wall 3 having a circular cross section. Thus, the air introduced from the air channel can be blown out from the porous surface.

As described above, according to the present invention, the air introduction plate is rotatably supported at one end of the perforated plate and its elevation angle is adjustable, and the distance between the air introduction plate and the perforated plate is reduced. When the opening is formed on the side, a part of the air introduced from the air flow path of the air conditioning duct by the air introduction plate escapes from the opening and is returned to the air flow path, thereby suppressing an increase in pressure on the back side. It is possible to alleviate the state in which the amount of air blown from the blowout holes is uneven. In addition, the air introduction plate is configured to be able to change the elevation angle up to the air blowing stop position where the air introduction plate contacts the porous plate and closes the hole of the porous plate, so that the air introduction plate rotates to the air blowing stop position where the air introduction plate contacts the porous plate. If you do, you can stop the air blowing from the air outlet, and if you want to stop the air blowing temporarily or if the air blowing is no longer necessary due to some situation change, without having to work on the air conditioning duct It can be easily handled. In addition, part of the air flowing in the air conditioning duct can be efficiently introduced into the air outlet by the air introduction plate and blown into the room from the outlet hole, and it is difficult to generate vortex in the air flow path in the air conditioning duct. An air conditioning system can be configured in which there is little pressure loss and the adjustment of the air flow rate from a plurality of air outlets is easy. Therefore, it is effective not only for air conditioning but also for air conditioning that stably supplies clean air to a clean room.

The perspective view which shows the basic composition of the air blower outlet which concerns on embodiment. The schematic diagram which shows the structure which has arrange | positioned the air blower outlet in the air-conditioning duct. FIG. 3A is a cross-sectional view illustrating a configuration example of an angle adjusting mechanism of an air introduction plate, and FIG. 3B is a perspective view illustrating a nut mounting structure. The perspective view which shows the aspect of the arrangement | positioning structure with respect to the air-conditioning duct of an air blower outlet. The perspective view which shows the structure of the air blower outlet which concerns on a prior art. Sectional drawing which shows the structure of the air blower outlet which concerns on a prior art. The perspective view which shows the structure of the air blower outlet which concerns on a prior art. The schematic diagram which shows the structure of the air blower outlet which concerns on a prior art.

Explanation of symbols

1, 1a Air outlet 2 Air introduction plate 3 Peripheral wall 3a Perforated plate (outlet)
5 Angle adjustment mechanism (turning operation means)
6 Hinge structure 10 Air conditioning duct

Claims (8)

An air outlet that is provided at a required position of the air conditioning duct and blows out the air that has been blown through the air conditioning duct to the outside of the air conditioning duct, and is disposed in the air flow path of the air conditioning duct and is directed upstream in the blowing direction. An air introduction plate arranged to form an elevation angle, and a blowout hole made of a perforated plate for blowing out the air introduced by the air introduction plate to the outside of the air conditioning duct,
One end of the air introduction plate is rotatably supported on the perforated plate and the elevation angle is adjustable, and air introduced from the air flow path of the air conditioning duct by the air introduction plate. An air outlet comprising an opening formed on the back side where the separation distance between the air introduction plate and the porous plate is reduced so that a part of the air introduction plate returns to the air flow path . 2. The air outlet according to claim 1, wherein the opening is formed only on a back side where a separation distance between the air introduction plate and the porous plate is small . Air that forms an air-conditioning duct together with the duct structure, and is connected to and provided between the plurality of duct structures at a required position of the air-conditioning duct, and blows out air that has been blown through the air-conditioning duct to the outside of the air-conditioning duct An air outlet,
A peripheral wall formed in a cross-sectional shape corresponding to the cross-sectional shape of the air flow path of the duct structure, and an air introduction plate disposed in the peripheral wall so as to form an elevation angle of a predetermined angle with respect to the upstream side in the air blowing direction. And a blowout hole formed by a hole in a perforated plate provided on a predetermined surface of the peripheral wall for blowing out the air introduced by the air introduction plate to the outside of the air conditioning duct,
The air introduction plate is attached to the perforated plate in such a manner that one end of the air introduction plate is pivotably supported, and the elevation angle is adjustable.
Further, the separation distance between the air introduction plate and the perforated plate is small so that a part of the air introduced from the air flow path of the air conditioning duct escapes by the air introduction plate and is returned to the air flow path again. An air outlet characterized by forming an opening on the back side . One end of the air introduction plate is pivotally supported on the perforated plate by a hinge structure, and the other end is pivotally provided with a pivot plate formed with a long hole via a pivot, and the porous plate The plate is provided with a screw shaft that is screwed into a nut that is slidably inserted into the long hole, and is supported by screwing the screw portion.
Elevation angle can be varied by rotating the screw shaft from the outside of the air conditioning duct by a rotating operation means.
3. The air outlet according to claim 1, wherein the air introduction plate is configured to be capable of changing an elevation angle to an air blowing stop position at which the air introduction plate abuts on the porous plate and closes the hole of the porous plate. . The air blower outlet as described in any one of Claims 1 thru | or 4 by which a perforated board is arrange | positioned in the inlet_port | entrance part of the air introduction by an air introduction board. The air blower outlet as described in any one of Claims 1 thru | or 5 by which a photocatalyst layer is formed in the outer peripheral surface containing a blowing hole. A plurality of air outlets according to any one of claims 1 to 6, wherein the air that has been adjusted in temperature and humidity and / or cleaned is blown in an extending direction of the air conditioning duct, and is disposed at a required position of the air conditioning duct. The air introduced by the air introduction plate disposed in the flow path and arranged so as to form an elevation angle toward the upstream side in the air blowing direction is blown out of the air conditioning duct from the blow hole. An air-conditioning method using an air outlet. The air conditioning method using the air outlet according to claim 7, wherein the amount of air blown out of the air conditioning duct from the outlet hole of each air outlet can be adjusted by adjusting the elevation angle of the air introduction plate.

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