KR20210053260A - Booth and ejection device - Google Patents

Abstract

An object of the present invention is to realize a booth in which an internal space can be easily accessed without deteriorating environmental conditions. In order to solve the above problems, the booth 10 is provided with a blowout part (a blowout device 120) for blowing air into the opening 105 leading to the inner space S, and the blowout part is provided from the outside space. A first airflow (outer airflow 126) that suppresses the introduction of disturbances into the inner space and a second airflow (inner airflow 127) that suppresses introduction of the first airflow into the internal space are formed.

Description

Booth and ejection device

The present invention relates to a booth and a jetting device.

BACKGROUND ART Booths are known for assembling electronic parts and precision parts, performing various operations such as experiments, and operating process devices and precision machines. In such a booth, the internal space is isolated from the external space by partition members (walls, ceilings, etc.) to maintain environmental conditions such as temperature, humidity, and cleanliness.

Patent Document 1: Japanese Laid-Open Patent Publication No. 2014-169816

In the booth, an entrance to the interior space is required for entry and exit of a worker or for carrying in and out of articles. If structures such as doors, sliding doors, and curtains are provided at the entrance, access becomes complicated and workability deteriorates. Therefore, it is conceivable to make the doorway a simple opening without providing such a structure. However, in this case, blocking from the external space becomes insufficient, and it becomes difficult to perform air conditioning control in the internal space, for example, temperature control or humidity control. In addition, there is a fear that dust enters the internal space from the opening, thereby lowering the cleanliness of the internal space. In this way, when the entrance of the booth is made a simple opening, various environmental conditions (temperature, humidity, cleanliness, etc.) are degraded.

An aspect of the present invention is to realize a booth in which an internal space can be easily accessed without deteriorating environmental conditions.

In order to solve the above problems, a booth according to an aspect of the present invention includes a jet portion for ejecting air into an opening leading to an inner space partitioned from the outer space, and the ejection portion comprises a disturbance from the outer space.亂) is provided with a configuration for forming a first airflow for suppressing introduction into the internal space, and a second airflow for suppressing introduction of the first airflow into the internal space inside the first airflow. .

According to one aspect of the present invention, it is possible to realize a booth in which an internal space can be easily accessed without deteriorating environmental conditions.

1 is a schematic configuration diagram showing a booth according to Embodiment 1 of the present invention.
Fig. 2 is a schematic vertical cross-sectional view showing a booth according to Embodiment 1 of the present invention.
3 is a schematic configuration diagram showing a jetting device according to Embodiment 1 of the present invention.
4 is a schematic horizontal cross-sectional view showing a booth according to Embodiment 1 of the present invention.
5 is a schematic horizontal cross-sectional view showing a booth according to Embodiment 2 of the present invention.
6 is a schematic vertical cross-sectional view showing a booth according to Embodiment 3 of the present invention.
7 is a schematic vertical cross-sectional view showing a booth according to Embodiment 4 of the present invention.
Fig. 8 is a schematic vertical cross-sectional view showing a booth according to Embodiment 5 of the present invention.
9 is a front view of a booth according to Embodiment 6 of the present invention.
10 is a front view of a booth according to Embodiment 7 of the present invention.
11 is a front view of a booth according to Embodiment 8 of the present invention.
12 is a front view of a booth according to Embodiment 9 of the present invention.
13 is a result of a simulation on the temperature distribution of a booth according to the present invention.
14 is a result of a simulation on the temperature distribution of a booth according to the present invention.
15 is a result of a simulation on the temperature distribution of the booth of the present invention.

[Embodiment 1]

Hereinafter, an embodiment of the present invention will be described in detail.

(The overall composition of the booth)

1 is a diagram showing a schematic configuration of a booth 10 according to a first embodiment. In addition, FIG. 2 is a diagram schematically showing a vertical cross section observed from the side of the booth 10. The booth 10 includes a ceiling part 101, which is a partition member assembled on a floor 90 (not included in the construction of the booth 10), two side wall parts 102, and a front wall part 103. ), the rear wall (後壁) is provided with an inner space (S) partitioned from the outer space by the (104). The size of the inner space S is not limited to a specific value, but may be, for example, about 3 to 20 m in the depth direction, 3 to 20 m in the width direction, and about 2 to 5 m in the height direction.

In a part of the front wall portion 103, an opening 105 is provided in the vicinity of the center, and an entrance to the inner space S is formed. The size of the opening 105 is not limited to a specific value, but, for example, the width direction is 1 to 3 m smaller than the width of the inner space (S), and the height direction is about 2 to 5 m smaller than the height of the inner space (S). I can.

In addition, the booth 10 is provided with an air conditioner (air conditioning unit) 150 in addition to the inner space S to perform air conditioning of the inner space S. The internal space (S) is an area for performing various tasks such as assembly and experimentation of electronic parts and precision parts, operation of process equipment and precision machinery, work in an environment in which the atmosphere is controlled, and machine operation, etc. . In Embodiment 1, the air conditioner is specifically temperature control. However, the air conditioner is not limited only to temperature control, and for example, humidity control and cleanliness control may be employed.

The partition member (ceiling part 101, side wall part 102, front wall part 103, rear wall part 104) is used as a wall or ceiling material of a booth, such as a vinyl curtain, a heat-insulating non-combustible panel, glass, acrylic plate, metal plate, etc. It can be composed of a suitable known material. In addition, in order to maintain structural strength, it is preferable that the partition member is assembled by appropriately using a frame, a column, a beam, or the like.

The booth 10 is provided with a jetting device (a jetting portion) 120 for jetting air through the opening portion 105. As a specific mounting position of the ejection device 120, for example, it can be mounted on a part of the front wall portion 103 serving as an end portion of the opening 105. In addition, a suction device (suction part) 130 for sucking air is mounted at a position facing the ejection device 120 (for example, a part of the front wall 103 serving as the edge of the opening 105). The ejection device 120 and the suction device 130 are disposed outside the front wall portion 103 along a vertical line, respectively, on the left and right of the opening 105. Further, the air ejection port of the blowing device 120 and the air suction port of the suction device 130 are arranged to face each other. However, the booth 10 of Embodiment 1 is provided with the ejection apparatus 120 and the suction apparatus 130, respectively, 1 unit. However, a plurality of ejection devices 120 may be arranged so as to be arranged along the edge of the opening 105, and substantially the same role as that of one large-sized ejection device may be performed. The same is true for the suction device.

(Temperature control of internal space)

An introduction port 111 is provided at the bottom of the ceiling 101 to introduce temperature-controlled air into the internal space S of the booth 10. Air controlled to a predetermined temperature is sent from the air conditioning device 150 to the inlet 111 through a pipe 143 to the inlet port. The inlet 111 discharges an airflow (downflow) uniformly controlled in a downward direction with respect to the inner space S. In FIG. 1, the inlet 111 is drawn as two members divided left and right, but this is an example, and may be composed of a single member or a plurality of members of two or more, and is provided on the substantially entire surface of the ceiling portion 101. You may have it. In addition, the inlet 111 is mounted on the rear wall portion 104 as illustrated in FIG. 1, and may not have a shape extending in the depth direction, for example, it is suspended from the ceiling portion 101 or the ceiling portion 101 ) May be buried. In addition, it is preferable that the inlet 111 is provided with a filter or a mesh for removing dust and the like.

The air sent to the inner space S is drawn into the outlet 112 provided in the lower portion of the rear wall portion 104 and is recovered to the air conditioner 150 through the pipe 144 to the outlet. The shape of the lead-out opening 112 may also be a horizontally elongated rectangle as shown in Fig. 1, but other shapes or arbitrary number of holes may be appropriate. Here, the piping may specifically be a circular tube-shaped member, a rectangular tube-shaped member, a duct, or the like, and the same is applied below.

In this way, the air temperature controlled by the air conditioner 150 circulates, so that the internal space S of the booth 10 is controlled to a predetermined temperature. As for the airflow taken out from the inlet 111, the wind speed is not limited to a specific value, but it is preferable that the wind speed is gentle at 0.1 to 1 m/s. This is because, when the wind speed is high, the airflow directly comes into contact with the equipment and household appliances installed in the internal space S, thereby creating a location where the air flow is partially cooled, which may cause temperature distribution. In addition, in the present application, the wind speed of the airflow is defined as the wind speed (bout wind speed) immediately below the outlet such as an inlet port or a jet port.

In addition, it is not preferable for temperature control that external air directly flows into the internal space (S). Accordingly, the internal space S is maintained at a slightly positive pressure by the air conditioning device 150. Therefore, air slightly flows out of the inner space S through the opening 105 or the like (EA in Fig. 2). The air conditioner 150 introduces air from the external airway inlet 151 in order to supplement the outflowing air and again maintain the internal space S at a positive pressure, together with the air recovered from the internal space S. The temperature is adjusted, and the air volume is provided at a required location.

(Airflow control at the opening)

In addition, the characteristic airflow control in the opening 105 will be described using Figs. 3 and 4 as well. 3 is a schematic diagram showing a jetting device 120 according to the first embodiment. 4 is a diagram schematically showing a horizontal cross section of the booth 10.

Temperature-controlled air is supplied to the blowing device 120 through a pipe 141 from the air conditioning device 150 to the blowing device. The jetting device 120 is provided with an outer jetting port 121 (a first jetting port) and an inner jetting port 122 (a second jetting port), each of which is long vertically and corresponding to the length of the opening 105 in the vertical direction. . The outer jet port 121 and the inner jet port 122 are parallel to each other. The outer jet port 121 is provided on a side farther from the inner space S than the inner jet port 122. The length of the outer spout 121 and the inner spout 122 is not limited to a specific value, but may be, for example, 2 to 5 m. In addition, as described above, when a plurality of ejection devices 120 are arranged in a row along the edge of the opening 105, the lengths of the outer ejection port 121 and the inner ejection port 122 are specified. Although not limited to, for example, it may be about 0.5 ~ 2m.

The outer jetting port 121 takes out the outer airflow 126 (first airflow) in a horizontal direction parallel to the plane formed by the opening 105 (parallel to the front wall portion 103). Here, the outer airflow 126 is a layered airflow covering the opening 105, that is, an air curtain. In addition, the inner jetting port 122 takes out the inner airflow 127 (second airflow) in a horizontal direction parallel to the plane formed by the opening 105 (parallel to the front wall portion 103). Here, the inner airflow 127 is a layered airflow covering the opening 105, and this is also an air curtain. The direction of the outer airflow 126 and the direction of the inner airflow 127 are parallel and are the same direction.

With respect to the outer airflow 126, the inner airflow 127 is a weaker airflow. Here, a weaker airflow means that the wind speed is relatively small (slower). The preferred wind speed of the outer airflow 126 is 4 to 8 m/s, and may typically be 5 m/s. The preferred wind speed of the inner airflow 127 is a wind speed that is relatively smaller than that of the outer airflow 126, and may be 3 to 6m/s, typically 4m/s. Further, by maintaining the internal pressure at a positive pressure, it becomes possible to lower the wind speed. In that case, the preferred wind speed may be 3 to 6 m/s in the outer airflow 126 and 2 to 4m/s in the inner airflow 127. By reducing the wind speed, the scattering of the air flow is reduced, and the effect of the present invention of suppressing the influence of disturbance on the internal space S can be further exhibited.

In either case, the wind speeds of the outer airflow 126 and the inner airflow 127 are not limited to the above ranges, and may be appropriately different values. However, as described above, the outer airflow 126 needs to have a higher wind speed than the inner airflow 127.

Further, more preferably, the wind speed of the inner airflow 127 is greater than the wind speed of the airflow taken out from the inlet 111 in the inner space S.

The suction device 130 serves to suck air so that the outer airflow 126 and the inner airflow 127 do not disperse what each flows as a layered airflow. It is preferable that the suction device 130 has two vertically elongated suction ports, each corresponding to the outer airflow 126 and the inner airflow 127. However, it may have one vertically long suction port that sucks in both the airflow of the outer airflow 126 and the inner airflow 127. It is preferable that the length of the vertically long suction port is about the same as that of the outer jetting port 121 or the inner jetting port 122 of the jetting device 120. The air sucked by the suction device 130 is sent to the air conditioner 150 through a pipe 142 to the suction device.

Further, the wind speeds of the outer airflow 126 and the inner airflow 127 can be appropriately adjusted according to the distance between the ejection device 120 and the suction device 130. The distance between the ejection device 120 and the suction device 130 is, in detail, the outer ejection port 121 (the first ejection port) of the ejection device 120 and the outer airflow 126 of the suction device 130 are sucked. It is a suction port for suctioning the distance between the suction port to be performed and the inner jet port 122 (the second jet port) in the jet device 120 and the inner air flow 127 of the suction device 130. The preferred wind speed of the outer airflow 126 with respect to the distance between the ejection device 120 and the suction device 130 is 2.5 to 5.5 m/s per 1 m distance between the ejection device 120 and the suction device 130 And may be typically 3.3 m/s. The preferred wind speed of the inner airflow 127 with respect to the distance between the ejection device 120 and the suction device 130 is 2 to 4 m/s per 1 m distance between the ejection device 120 and the suction device 130 , Typically 2.7 m/s. In addition, when the internal pressure is maintained at a positive pressure, 2 to 4 m/s in the outer airflow 126 and 1 to 3m in the inner airflow 127 per 1m of the distance between the ejection device 120 and the suction device 130 May be /s. By reducing the wind speed, the scattering of the air flow is reduced, and the effect of the present invention of suppressing the influence of disturbance on the internal space S can be further exhibited.

(Effect in Embodiment 1)

With the above configuration, the following is realized in the booth 10 according to the first embodiment.

Since the opening 105 is provided in a part of the front wall portion 103, it is easy for an operator to enter and exit and carry in/out articles, and access to the inner space S is good. Therefore, the efficiency of various operations using the booth 10 becomes good.

In general, in a booth having such an opening, it is difficult to control air conditioning of the internal space due to the inflow of outside air and the outflow of air from the internal space. For example, in the case of performing temperature control as an air conditioner, it becomes difficult to set the internal space S to a predetermined uniform temperature due to the inflow of outside air (an example of disturbance) with insufficient temperature control. In addition, the inflow of wind (an example of disturbance) into the interior space is also a source of disturbing the flow of air in the interior space. However, in the booth 10, since it is configured to form an air flow serving as an air curtain in the opening 105, inflow of outside air and outflow of air into the internal space are suppressed. In other words, it acts in the direction of blocking the inside and outside.

In addition, in the booth 10, in the opening 105, an outside airflow 126 (first airflow) and an inside airflow 127 (second airflow) are formed, and with respect to the outside airflow 126, the inside The airflow 127 has a characteristic configuration of a weaker airflow. Hereinafter, the significance of such a characteristic configuration will be described.

The inventors of the present invention initially studied a configuration in which a single layer of airflow (air curtain) is formed in the opening. Then, when the wind speed of the airflow is small, the effect of suppressing the inflow of outside air and the outflow of air into the internal space is insufficient, and the target temperature control in the internal space S cannot be performed. Here, the target temperature control, more specifically, can be controlled so that the distribution of the temperature in the internal space S is within ±0.1 degrees with respect to the temperature target value.

Next, in order to increase the effect of blocking the inside and outside, an attempt was made to increase the wind speed of the airflow. However, when the wind speed of the airflow of the fault is increased, air in the internal space is attracted and accelerated, and the airflow is in a state as if entering the internal space. As a result, a location with a large wind speed was partially generated in the internal space, and the target temperature control in the internal space was not possible. This is because, in part, a location with a large wind speed is formed, and the temperature distribution in the internal space S is disturbed. Although various wind speeds were examined, the temperature distribution of the target internal space could not be realized in the faulty airflow (air curtain).

In addition, although the temperature distribution of the internal space S has been described here, the humidity distribution is also substantially the same.

In addition, it was also found that when a single-phase airflow is employed, it is not possible to adequately prevent the incorporation of dust. If the wind speed of the airflow of the fault is lowered, there is a possibility that the prevention of dust mixing into the internal space S by the airflow may not work sufficiently. On the other hand, when the airflow of the fault layer is increased, dust may be rolled up when the airflow into the above-described internal space S, and as a result, dust may be mixed into the internal space.

Therefore, the inventors of the present invention are confused to form two layers of airflow in the opening 105, the outer airflow 126 having a large wind speed and the inner airflow 127 weaker than the outer airflow 126, and the present invention Came to complete. The outside airflow 126 having a large wind speed plays a role of making the effect of blocking the inside and outside the room sufficient. That is, it serves to suppress the influence of the disturbance on the inner space (S). On the other hand, the relatively weak inner airflow 127 serves to suppress the outer airflow 126 having a large wind speed from entering the inner space (S). With such a unique configuration and arrangement of airflow, in the booth 10, target temperature control and humidity control in the internal space S can be realized, and incorporation of dust into the internal space can be suitably prevented. It can be.

In addition, in the booth 10, a suction device 130 for sucking air is provided at the edge of the opening 105 to face the blowing device 120. With this configuration, the outer airflow 126 (the first airflow) and the inner airflow 127 (the second airflow) are in the regions of the opening 105, which are separated from the outer jetting port 121 and the inner jetting port 122, respectively. Even if there is, scattering is suppressed. Accordingly, target temperature control and humidity control in the internal space S, and prevention of dust mixing are suitably realized.

In addition, by making the direction of the outer airflow 126 (first airflow) and the inner airflow 127 (second airflow) be horizontal, the ejection device 120 and the suction device 130 are moved to the left and right of the opening 105. Can be placed vertically. Therefore, it is possible to easily manufacture a booth provided with the ejection device 120 and the suction device 130.

In the booth 10, the outer airflow 126 (first airflow) and the inner airflow 127 (second airflow) are formed by air supplied from the air conditioner 150. By forming the outside airflow 126 and the inside airflow 127 with air that is air-conditioned by the air conditioning device 150, factors that disturb the control of the internal space S are suppressed, and in the internal space S The target coordination language is surely realized.

In the jetting device 120 according to the first embodiment used in the booth 10, the outer jetting port 121 (first jetting port) for forming the outer airflow 126 (first airflow) and the outside airflow 126 ) Is provided with an inner jetting port 122 (second jetting port) for forming a weaker inner airflow 127 (second airflow). In a booth having an opening, by applying the ejection device 120 of the present configuration, it is possible to achieve good access to the internal space and good temperature control of the internal space.

[Embodiment 2]

Another embodiment of the present invention will be described below. In addition, for convenience of explanation, members having the same functions as those described in the above embodiment are denoted by the same reference numerals, and the description is not repeated.

5 is a diagram showing a schematic configuration of a booth 20 according to the second embodiment. Fig. 5(1) is a diagram schematically showing a cross section in the horizontal direction for showing a schematic configuration of the booth 20 according to the second embodiment. Unlike the booth 10 according to the first embodiment, the booth 20 does not include the suction device 130 and the pipe 142 to the suction device. In addition, unlike the booth 10, a jetting device 120 is provided on both the left and right edges of the opening 105. A pipe 141 from the air conditioner 150 to the jetting device for supplying air-conditioned (temperature controlled) air is connected to each of the jetting devices 120.

The left and right ejection devices 120 form two layers of airflow, an outer airflow 226 (first airflow) having a large wind speed, and an inner airflow 227 (second airflow) weaker than the outer airflow 226, respectively. I'm doing it. Accordingly, the external shapes of the left and right ejection devices 120 are mirror-symmetrical to each other. However, in any airflow, the direction is horizontal.

The preferred wind speed of the outer airflow 226 is 2 to 4 m/s, and may typically be 3 m/s. The preferred wind speed of the inner airflow 227 is a wind speed that is relatively smaller than that of the outer airflow 226, and may be 1 to 3m/s, typically 2m/s. In either case, the wind speeds of the outer airflow 226 and the inner airflow 227 are not limited to the above ranges, and may be appropriately different values. However, as described above, the outer airflow 226 needs to have a higher wind speed than the inner airflow 227.

In addition, the wind speeds of the outer airflow 226 and the inner airflow 227 are each of the outer jetting ports 121 (first jetting ports) and the inner jetting ports 122 (second jetting ports) of the left and right jetting devices 120 It is possible to adjust appropriately according to the distance between. The preferred wind speed of the outer airflow 226 with respect to the distance between the left and right outer jets 121 is 1 to 3 m/s per 1 m of the distance between the left and right outer jets 121, and is typically 2 m/s. I can. The preferred wind speed of the inner airflow 227 with respect to the distance between the left and right inner jets 122 is 0.5 to 2 m/s per 1 m of the distance between the left and right inner jets 122, typically 1.3 m/s Can be

In the booth 20 according to the second embodiment, since air is supplied from the left and right blowing devices 120, the wind speed of the outer air flow 226 and the inner air flow 227 compared to the case where air is supplied from one side. Can be made smaller. For this reason, the scattering of the air flow is reduced, and the effect of the present invention of suppressing the influence of the disturbance on the internal space S is further exerted.

Other configurations are the same as those of the booth 10 according to the first embodiment. Therefore, also in the booth 20, except for the effect by the suction device 130, the same effect as the first embodiment can be obtained.

In addition, in the booth 20, since the outer air flow 226 and the inner air flow 227 are formed from the left and right with respect to the opening 105, each air flow (air curtain) easily covers the opening 105. Therefore, it is easy to widen the width of the opening 105. On the other hand, in the vicinity of the central portion in the width direction of the opening 105, since air flows from left and right meet, there is a fear that the air flow is liable to be scattered. Therefore, the directions of the outer airflow 226 and the inner airflow 227 are substantially parallel to the plane formed by the opening 105 (approximately parallel to the front wall portion 103), but slightly outward, and the inner space (S) It is preferable to make it difficult for the outer airflow 226 and the inner airflow 227 to enter into the.

FIG. 5(2) is an explanatory view showing the angles θi1 and θi2 of the inner airflow 227 with respect to the plane P formed by the opening 105. The angles θi1 and θi2 of the left and right inner airflows 227 are not particularly limited, but are preferably 0 to 45°. The lower limit is, for example, 1° or more, 3° or more, 5° or more, or 10° or more. Moreover, as an upper limit, it is 40 degrees or less, 35 degrees or less, or 30 degrees or less, for example. The angles θi1 and θi2 of the left and right inner airflow 227 may be the same or different angles.

Further, similarly to the outer airflow 226, the angles θo1 and θo2 of the left and right outer airflows 226 are not particularly limited, but are preferably 0 to 45°. The lower limit is, for example, 1° or more, 3° or more, 5° or more, or 10° or more. Moreover, as an upper limit, it is 40 degrees or less, 35 degrees or less, or 30 degrees or less, for example. The angles θo1 and θo2 of the left and right outer airflows 226 may be the same or different angles.

In addition, the angle of the inner airflow 227 and the angle of the outer airflow 226 may be the same or different angles.

Further, the angles (θi1, θi2, θo1, θo2) may be variably controlled according to conditions such as temperature and humidity of the inner space S or the outer space. Accordingly, even when there is a change in the external environment, for example, the influence of the disturbance on the internal space S can be more favorably suppressed. As a specific example, for example, when the temperature of the outside space rises, the outside airflow 226 and the inside airflow 227 are warmed by radiant heat emitted from the floor, etc., so that the outside airflow or the inside airflow easily enters the interior space (S). Lose. In such a case, the influence of the disturbance can be suppressed by making the angle more outward.

[Embodiment 3]

6 is a diagram schematically showing a cross section in a vertical plane for showing a schematic configuration of a booth 30 according to the third embodiment. Unlike the booth 10 according to the first embodiment, the booth 30 does not include the suction device 130 and the pipe 142 to the suction device. In addition, unlike the booth 10, a horizontally disposed ejection device 320 is provided at the edge of the opening 105. A pipe 141 from the air-conditioning device 150 to the blowing device for supplying air-conditioned (temperature controlled) air is connected to the blowing device 320.

The jetting device 320 forms two layers of airflow: an outside airflow 326 (first airflow) having a large wind speed and an inside airflow 327 (second airflow) weaker than the outside airflow 326. However, in any airflow, the direction is vertical downward.

Other configurations are the same as those of the booth 10 according to the first embodiment. Therefore, also in the booth 30, except for the effect by the suction device 130, the same effect as the first embodiment can be obtained.

In the booth 30, an outside airflow 326 and an inside airflow 327 are formed from above the opening 105. Therefore, it is difficult to be limited in the width direction of the opening 105, and it is easy to increase the width of the opening 105. Further, along the edge portion on the opening 105, a plurality of ejection devices 320 may be arranged in a row.

In the blowing device 320 according to the third embodiment used in the booth 30, as in the blowing device 120 according to the first embodiment, the outside blowing port for forming the outside airflow 326 (first airflow) A (first jet port) and an inner jet port (second jet port) for forming an inner jet port 327 (second jet port) weaker than the outer jet port 326 is provided. In a booth having an opening, if the spray device 320 of the present configuration is applied, it is possible to achieve good access to the internal space and good temperature control of the internal space.

[Embodiment 4]

7 is a diagram schematically showing a cross section in a vertical plane for showing a schematic configuration of a booth 31 according to the fourth embodiment. In the booth 31 according to the fourth embodiment, a suction device 330 disposed so as to face the ejection device 320 and a pipe to the suction device connected thereto are added to the booth 30 according to the third embodiment. will be. In the fourth embodiment, the suction device 330 is disposed below the opening 105. The suction device 330 can be disposed at a position higher than the bottom surface 90. In this case, the construction of the booth becomes easy. Alternatively, the suction device can be disposed at a position lower than the bottom surface 90. In this case, access to the internal space is not obstructed. Also in the booth according to the fourth embodiment, the same effect as in the above embodiment can be obtained.

[Embodiment 5]

8 is a diagram schematically showing a cross section in a vertical plane for showing a schematic configuration of a booth 11 according to the fifth embodiment. The booth 11 according to the fifth embodiment omits the suction device 130 and the pipe 142 to the suction device from the booth 10 according to the first embodiment. Also in the booth 11 according to the fifth embodiment, the same effects as the booth 10 according to the first embodiment can be obtained except for the effect by the suction device 130.

[Embodiment 6]

9 is a diagram schematically showing a front view of the booth 12 according to the sixth embodiment. The booth 60 according to the sixth embodiment is provided with an upper cover 160 covering the upper portion of the opening 105 in the booth 10 according to the first embodiment, and other configurations are the same.

When the air supplied from the blowing device 120 is at a lower temperature than the outside space, the air supplied from the blowing device 120 tends to flow downward at a point that is heavier than the air in the outside space. Therefore, there is a concern that outside air is easily introduced from the upper portion of the opening 105. According to the booth 12 according to the sixth embodiment, since the upper cover 160 covering the upper part of the opening 105 is provided, inflow of outside air from the upper part of the opening 105 can be suppressed.

In addition, since the air supplied from the blowing device 120 is diffused vertically and horizontally, in the booth 10 according to the first embodiment, a part of the air above the opening 105 changes the direction of the suction device 130. It does not face, but is distributed upwards. However, by providing the upper cover 160, the air supplied from the blowing device 120 can be rectified in the direction of the suction device 130.

The shape of the upper cover 160 is not particularly limited, but is, for example, a plate member installed in the horizontal direction. From the viewpoint of rectifying the flow of air supplied from the blowing device 120, the surface of the upper cover 160 on the side of the opening 105 is preferably formed along the direction in which the air supplied from the blowing device 120 flows. Do.

[Embodiment 7]

10 is a diagram schematically showing a front view of a booth 21 according to the seventh embodiment. The booth 21 according to the seventh embodiment is provided with an upper cover 160 covering the upper portion of the opening 105 in the booth 20 according to the second embodiment, and other configurations are the same. In the same manner as in the sixth embodiment, by providing the upper cover 160, it is possible to suppress the inflow of outside air from the upper portion of the opening 105.

In addition, the air supplied from the blowing device 120 can be rectified toward the center of the opening 105.

The shape of the upper cover 160 is the same as in the sixth embodiment, for example, a plate member provided in a horizontal direction, or the like. From the viewpoint of rectifying the flow of air supplied from the blowing device 120, the surface of the upper cover 160 on the side of the opening 105 is preferably formed along the direction in which the air supplied from the blowing device 120 flows. Do.

[Embodiment 8]

11 is a diagram schematically showing a front view of the booth 13 according to the eighth embodiment. In the booth 13 according to the eighth embodiment, in the booth 10 according to the first embodiment, the wind speed of the air supplied from the blowing device 120 (the outer air flow 126 and the inner air flow 127) is It is different from the bottom. More specifically, in the booth 13 according to the eighth embodiment, the air velocity in the upper portion of the air supplied from the blowing device 120 (the outer air flow 126 and the inner air flow 127) is It is faster than the customs. However, other configurations are the same.

When the air supplied from the blowing device 120 is at a lower temperature than the outside space, the air supplied from the blowing device 120 tends to flow downward at a point that is heavier than the air in the outside space. Therefore, there is a concern that outside air is easily introduced from the upper portion of the opening 105. According to the booth 13 according to the eighth embodiment, since the air velocity at the upper side of the opening 105 is faster than the air velocity at the lower side, the inflow of outside air from the upper portion of the opening 105 can be suppressed. .

When the wind speed of the air supplied from the ejection device 120 (outer airflow 126 and inner airflow 127) is changed at the top and bottom, it may be set to two speeds of high speed and low speed, and speed of multiple steps It may be set so as to gradually increase the speed toward the upper side of the furnace.

However, the configuration in which the wind speed of the air on the upper side is faster than the wind speed of the air on the lower side includes not only a means for increasing the linear speed of the air on the upper side, but also a means for increasing the amount of air on the upper side.

Here, the wind speed of the air sucked by the suction device 130 may be a constant wind speed in the height direction, and the same as the air supplied from the ejection device 120, the wind speed of the air sucked to the upper side is higher than the lower side. You can set it.

In addition, as a modified example of the booth 13 according to the eighth embodiment, when the air supplied from the blowing device 120 is at a higher temperature than the outside space, the wind speed of the air at the lower side is faster than the wind speed of the air at the upper side. Just set it up. The air supplied from the ejection device 120 is lighter than the air in the external space, and thus it is confirmed that there is a tendency to flow upward. Therefore, in this case, by setting the wind speed of the air on the lower side to be faster than the wind speed of the air on the upper side, inflow of outside air can be suppressed.

[Embodiment 9]

12 is a diagram schematically showing a front view of a booth 22 according to the ninth embodiment. In the booth 22 according to the ninth embodiment, in the booth 20 according to the second embodiment, the wind speed of the air supplied from the two blowing devices 120 (the outer air flow 226 and the inner air flow 227) is It is different at the top and bottom. More specifically, in the booth 22 according to the ninth embodiment, the air velocity in the upper portion of the air supplied from the blowing device 120 (the outer air flow 226 and the inner air flow 227) is It is faster than the customs. However, other configurations are the same.

In addition, since the setting of the wind speed of the air supplied from the blowing device 120 is the same as in the eighth embodiment, it is omitted.

〔Simulation Result〕

13 to 15 are diagrams showing the results of simulations regarding the temperature distribution of the booth of the present invention. The conditions of the simulation were the temperature of the inner space at 23°C and the temperature of the outer space at 28°C, with the aim of satisfying ±0.1°C as the temperature control of the inner space, and the effects of each configuration were verified. However, in the case where the jetting device was provided only on one side of the first and sixth embodiments of Fig. 13, the wind speeds of the outer airflow and the inner airflow were set to 2 m/s, respectively. In the case where the jetting devices are provided on both sides of the second embodiment in Fig. 14 and the seventh embodiment in Fig. 15, the wind speeds of the outer airflow and the inner airflow are set to 2 m/s, respectively, in any of the respective jetting devices. For the results of each simulation, the left figure shows the temperature distribution of the vertical section of the opening at the position of the inner jet, and the right figure shows the temperature distribution of the vertical section of the opening at the location of the outer jet.

In FIG. 13, (1) temperature distribution using the booth of Embodiment 1, and (2) temperature distribution using the booth of Embodiment 7 are shown. In both (1) and (2), excellent temperature distribution was obtained at the position of the inner jet port. This can be considered to be due to suppressing the inflow of the outside airflow into the inner space by the inside airflow while blocking the disturbance by the outside airflow.

In addition, when comparing (1) and (2), it was confirmed that when the upper cover 160 was provided, a more excellent temperature distribution was obtained. This can be considered to be due to the fact that the airflow ejected from the ejection device 120 is not dispersed upwardly, but is rectified by the suction device 130 along the upper cover 160.

In Fig. 14, (3) the temperature distribution of the opening in the case where the directions (θi1 and θi2, θo1 and θo2) of the airflow in the booth of the second embodiment are 0°, and (4) the direction of the airflow in the booth of the second embodiment ( Temperature distribution of the opening when θi1 and θi2, θo1 and θo2) are set to 15°, (5) the direction of the airflow in the booth of Embodiment 2 (θi1 and θi2, θo1 and θo2) of the opening when 30° Shows the temperature distribution.

Comparing (3) and (4) and (5), (4) when the direction of the airflow (θi1 and θi2, θo1 and θo2) is 15°, the temperature distribution in the booth (not shown) is the best result. Then, (5) when the direction of the airflow is 30°, and (3) when the direction of the airflow is 0°, it was confirmed that an excellent temperature distribution was obtained. This is considered to be due to the fact that the direction of the airflow ejected from both sides of the opening is slightly outwardly guided to the outer space side when the airflows on both sides collide.

In Fig. 15, (6) the temperature distribution of the opening in the case where the directions (θi1 and θi2, θo1 and θo2) of the airflow in the booth of Embodiment 7 are 0°, (7) the direction of the airflow in the booth of Embodiment 7 ( Temperature distribution of the opening when θi1 and θi2, θo1 and θo2) are set to 15°, (8) the direction of the airflow in the booth of Embodiment 7 (θi1 and θi2, θo1 and θo2) is 30°. Shows the temperature distribution.

Comparing (6) and (7) and (8), as in the case of the booth of Embodiment 2, (7) when the directions of the airflow (θi1 and θi2, θo1 and θo2) are 15°, the inside of the booth It is confirmed that the temperature distribution (not shown) is the best result, followed by (8) when the direction of the airflow is 30°, and (6) when the direction of the airflow is 0°, in that order, there is an excellent temperature distribution. Became.

However, when (6) and (4) were compared, the temperature distribution of (6) was excellent. That is, it can be said that the upper cover covering the upper part of the opening has a particularly excellent effect of maintaining the temperature of the internal space.

[Annex]

In each of the above-described embodiments, the airflow covering the opening is composed of the first airflow on the outside and the second airflow on the inside, but, for example, it hinders the formation of a third airflow between the first airflow and the second airflow. I never do that. In this way, it is possible to form two or more multi-layered air flows.

In each of the above-described embodiments, each booth may be provided in an interior of a factory or the like so as to constitute an additionally divided internal space S. However, the booth in the present invention is not limited to such a thing, and a self-contained body constructed as a part of a building in a building such as a factory may be used as the internal space (S). Further, a booth in which an air conditioning device is not provided may be used, and mixing of dust can be suitably prevented by applying each embodiment.

〔theorem〕

The booth according to the first aspect of the present invention has a blowout part for blowing air into an opening leading from the external space to the partitioned internal space, and the blowout part prevents disturbance from the external space from being introduced into the internal space. And a second airflow that suppresses the introduction of the first airflow into the inner space, inside the first airflow, and a second airflow that prevents the first airflow from being introduced into the internal space.

According to the above configuration, it is possible to realize a booth in which the internal space can be easily accessed without lowering the environmental conditions.

In the booth according to the second aspect of the present invention, in the first aspect, the blowing portion may have a configuration in which air is blown so that the second air flow becomes weaker than the first air flow.

According to the above configuration, it is possible to concretely realize the second airflow that suppresses the introduction of the first airflow into the interior space.

The booth according to the third aspect of the present invention includes a jet portion provided in an opening portion leading from the outer space to the inner space partitioned from the outer space, and a jet portion for jetting air toward the opening portion, and the jet portion, the first air flow, and the first air flow It is formed on the inside and has a configuration for blowing air so as to form a second airflow weaker than the first airflow.

According to the above configuration, it is possible to realize a booth in which the internal space can be easily accessed without lowering the environmental conditions.

In the booth according to aspect 4 of the present invention, in any one of the above aspects 1 to 3, the ejection portion includes a first ejection port for forming the first airflow and a second ejection port for forming the second airflow. You may have a structure to be provided.

According to the above configuration, it can be concretely realized to form the necessary first air flow and second air flow.

The booth according to the fifth aspect of the present invention may have a configuration in which the directions of the first airflow and the second airflow are horizontal in any one of the aspects 1 to 4 above.

According to the above configuration, it is possible to easily manufacture a booth equipped with a suction device.

The booth according to the sixth aspect of the present invention may have a configuration in which the directions of the first airflow and the second airflow are vertically downward in any one of the aspects 1 to 4 above.

According to the above configuration, it is difficult to be limited in the width direction of the opening, and it becomes easy to widen the width of the opening.

The booth according to the seventh aspect of the present invention may have a configuration including a suction portion for sucking air provided opposite to the blowing portion in any one of the above aspects 1 to 6.

According to the above configuration, the target air conditioning control in the internal space is reliably realized.

In the booth according to aspect 8 of the present invention, in any one of the above aspects 1 to 5, the two ejection portions are provided, the two ejection portions are disposed on both sides of the opening, and the two ejection portions The direction of the first airflow and the second airflow formed by this may be a direction of the opening and a direction toward the outer space side.

According to the above configuration, since the inflow of outside air can be suppressed, the target air conditioning control in the internal space can be reliably realized.

The booth according to aspect 9 of the present invention may have a configuration including an upper cover covering an upper portion of the opening in any one of the aspects 1 to 8 above.

According to the above configuration, since the inflow of outside air can be suppressed, the target air conditioning control in the internal space can be reliably realized.

In the booth according to aspect 10 of the present invention, in any one of the aspects 1 to 9, the first airflow and the second airflow formed by the ejection portion have different wind speeds in the height direction. You may have a configuration.

According to the above configuration, since the inflow of outside air can be suppressed, the target air conditioning control in the internal space can be reliably realized.

The booth according to aspect 11 of the present invention further has an air conditioning unit for controlling air conditioning of the internal space in any one of the above aspects 1 to 10, and the first airflow and the second airflow are provided by the air conditioning unit. It may have a configuration formed by supplied air.

According to the above configuration, the target air conditioning control in the internal space is reliably realized.

A booth according to aspect 12 of the present invention may have a configuration in which, in any one of the above aspects 1 to 11, a partition member is provided between the outer space and the inner space except for the opening.

According to the above configuration, it can be concretely realized to form the necessary inner space.

A jetting device according to aspect 13 of the present invention is a jetting device for jetting air into an opening leading to an inner space partitioned from an outer space, wherein the first airflow suppresses the introduction of disturbances from the outer space into the inner space. And, a second air flow that is inside the first air flow and suppresses introduction of the first air flow into the inner space is provided.

According to the above configuration, in a booth having an opening, it is possible to provide a jetting device having good access to the internal space and not lowering the environmental conditions of the internal space.

A jetting device according to aspect 14 of the present invention is a jetting device for jetting air into an opening leading from an outer space to an inner space partitioned, and is formed inside a first air flow and an inner space of the first air flow, and is more than the first air flow. It is provided with a configuration for blowing air to form a weak second airflow.

According to the above configuration, in a booth having an opening, it is possible to provide a jetting device having good access to the internal space and not lowering the environmental conditions of the internal space.

The present invention is not limited to each of the above-described embodiments, and various modifications are possible within the scope indicated in the claims, and embodiments obtained by appropriately combining the technical means disclosed in each of the other embodiments are also included in the technical scope of the present invention. .

Booths 10, 11, 12, 13, 20, 21, 22, 30
101 Ceiling (compartment member)
102 Side wall (compartment member)
103 Front wall (compartment member)
104 rear wall (compartment member)
105 opening
111 Inlet
112 exit
120, 320 ejection device (ejection part)
121 Outer spout (1st spout)
122 Inner spout (2nd spout)
126, 226, 326 Outer airflow (first airflow)
127, 227, 327 Inner airflow (second airflow)
130, 330 suction device (suction part)
141 Piping to ejection device
142 Piping to suction system
143 Piping to the inlet port
144 Piping to the outlet
150 air conditioning system (air conditioning unit)
151 Outside Airway Entrance
S inner space
The plane formed by the P opening

Claims (14)

It is provided with a jet for blowing air into an opening leading from the outer space to the partitioned inner space,
The ejection unit includes a first airflow that suppresses the introduction of disturbance from the external space into the internal space, and a second airflow that suppresses the introduction of the first airflow into the internal space inside the first airflow. Booth, characterized in that to form an airflow. The method of claim 1,
The blowing unit, the booth, characterized in that for blowing air so that the second air flow becomes weaker than the first air flow. It is provided in an opening through the inner space divided from the outer space, and has a jet portion for ejecting air toward the opening,
The blowing unit is a booth, characterized in that for blowing air to form a first airflow and a second airflow that is formed inside the first airflow and weaker than the first airflow. The method according to any one of claims 1 to 3,
The ejection unit, the booth, characterized in that provided with a first ejection port for forming the first airflow, and a second ejection port for forming the second airflow. The method according to any one of claims 1 to 4,
The first airflow and the direction of the second airflow, characterized in that the horizontal direction, the booth. The method according to any one of claims 1 to 4,
The direction of the first airflow and the second airflow, the booth, characterized in that the vertical direction downward. The method according to any one of claims 1 to 6,
A booth, characterized in that it comprises a suction unit for suctioning air provided opposite to the ejection unit. The method according to any one of claims 1 to 5,
It has two ejection parts,
The two ejection portions are disposed on both sides of the opening,
The direction of the first airflow and the second airflow formed by the two ejection portions is a direction of the opening and a direction toward the outer space side. The method according to any one of claims 1 to 8,
A booth, characterized in that it has an upper cover covering the upper portion of the opening. The method according to any one of claims 1 to 9,
The booth, characterized in that the wind speeds of the first airflow and the second airflow formed by the ejection portion are different in a height direction. The method according to any one of claims 1 to 10,
It further has an air conditioning unit that performs air conditioning control of the inner space,
The first airflow and the second airflow, characterized in that formed by the air supplied by the air conditioning unit, the booth. The method according to any one of claims 1 to 11,
A booth, characterized in that a partition member is provided between the outer space and the inner space, except for the opening. As a jetting device that blows air from the outside space into an opening that goes into the partitioned interior space,
A first airflow that suppresses the disturbance from the external space from being introduced into the internal space,
An ejection device for forming a second airflow that is inside the first airflow and suppresses the introduction of the first airflow into the internal space. As an ejection device that ejects air from the external space into an opening that leads to the divided internal space,
With the first air current,
A blowing device that is formed inside the first airflow and ejects air to form a second airflow that is weaker than the first airflow.

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