TW202010912A - Booth and spouting device - Google Patents

Abstract

The invention addresses the problem of realizing a booth which can easily access an internal space without decreasing an environmental condition. In order to solve the above-described problem, the booth (10) comprises a spouting part (spouting device 120) that spouts air to an opening part (105) communicating with an internal space (S), wherein the spouting part forms a first airflow (external airflow 126) that suppresses disturbance from an external space from being introduced into the internal space and a second airflow (internal airflow 127) that suppresses the first airflow from being introduced into the internal space.

Description

Work shed and spray device

The invention relates to a working shed and a spraying device.

There is known a work shed for performing various operations such as assembling or experimenting of electronic parts/precision parts, and operating processing devices/precision machinery. Such a work shed isolates the internal space from the external space by partition members (walls, ceilings, etc.), thereby maintaining environmental conditions such as temperature, humidity, and cleanliness. (Prior technical literature) (Patent Literature)

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

(Problem to be solved by the present invention)

In the work shed, in order to enter and exit workers or carry in/out items, an entrance and exit that can enter the internal space is required. If a structure such as a door, a sliding door, or a curtain is provided at the entrance and exit, entry will be troublesome and workability will be reduced. Therefore, a way of making the entrance and exit a simple opening without providing such a structure is conceivable. However, at this time, it is not sufficiently cut off from the external space, making it difficult to perform air conditioning control (eg, temperature control, humidity control, etc.) in the internal space. In addition, there is a possibility that dust may enter the internal space from the opening and the cleanliness of the internal space may decrease. In this way, when the entrance and exit of the work shed is a simple opening, various environmental conditions (temperature, humidity, cleanliness, etc.) are deteriorated.

The object of the same form of the invention is to realize a work shed that can easily enter the internal space without deteriorating the environmental conditions. (Means to solve the problem)

In order to solve the above-mentioned problems, the working shed in the same form of the present invention has the following structure: it includes a spraying portion that sprays air to an opening leading to the internal space isolated from the external space, and the spraying portion is formed to suppress the introduction of disturbance from the external space The first airflow into the internal space and the second airflow inside the first airflow prevent the introduction of the first airflow into the internal space. (Effect of invention)

According to the same aspect of the present invention, a work shed capable of easily entering the internal space without deteriorating environmental conditions can be realized.

[Embodiment 1]

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

(Overall composition of work shed) FIG. 1 is a diagram showing a schematic structure of the work shed 10 of the first embodiment. In addition, FIG. 2 is a diagram schematically showing a vertical cross section viewed from the side of the work shed 10. The work shed 10 includes a partition member assembled on the floor 90 (not included in the structure of the work shed 10), that is, the ceiling portion 101, the two side wall portions 102, the front wall portion 103, and the rear wall portion 104 from the outside Spatially isolated internal space S. The size of the internal space S is not limited to a specific value, but can be set to, for example, 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.

An opening 105 is provided near a center of a part of the front wall portion 103 to constitute an entrance to the internal space S. The size of the opening 105 is not limited to a specific value, and for example, it can be set to be 1 to 3 m in the width direction smaller than the width of the internal space S and about 2 to 5 m in the height direction smaller than the height of the internal space S.

In addition, the work shed 10 includes an air conditioning device (air conditioning unit) 150 outside the internal space S, and performs air conditioning control of the internal space S. The internal space S is an area for performing various operations such as assembling or experimenting of electronic parts/precision parts, operation of processing devices/precision machinery, etc., working in an environment controlled by an air conditioner, and mechanical operations. The air-conditioning control is specifically temperature control in the first embodiment. However, the air-conditioning control is not limited to temperature control, and may be, for example, humidity control and cleanliness control.

The partition members (ceiling portion 101, side wall portion 102, front wall portion 103, rear wall portion 104) can be used as a wall material for the work shed by plastic curtains, heat insulation non-combustible panels, glass, acrylic panels, metal plates, etc. The well-known materials of the ceiling material are suitable. In addition, in order to maintain the structural strength, it is preferable to use a frame, a column, a beam, or the like to assemble the partition member.

The work shed 10 is provided with a discharge device (discharge part) 120 that discharges air to the opening 105. As a specific mounting position of the ejection device 120, for example, it can be mounted on a part of the front wall 103 that becomes the end of the opening 105. In addition, a suction device (suction portion) 130 that sucks air is installed at a position facing the ejection device 120 (for example, a part of the wall portion 103 in front of the edge of the opening 105). The ejection device 120 and the suction device 130 are arranged outside the front wall portion 103 along the vertical line on the left and right sides of the opening 105, respectively. Furthermore, the air outlet of the air discharge device 120 is arranged to face the air suction port of the suction device 130. Furthermore, the work shed 10 of the first embodiment is provided with one discharge device 120 and one suction device 130, respectively. However, it may be configured such that a plurality of ejection devices 120 are arranged in line along the edge of the opening 105, and it is substantially the same as the one large ejection device. The same applies to the suction device.

(Temperature control of internal space) The bottom surface of the ceiling portion 101 is provided with an inlet 111 for introducing temperature-controlled air into the internal space S of the ceiling 10. The air controlled to a predetermined temperature is sent from the air conditioner 150 to the inlet 111 through the pipe 143 leading to the inlet. The introduction port 111 releases the airflow (downflow), which is directed downward and uniformized to the internal space S, in a blowing direction. In FIG. 1, the introduction port 111 is depicted as two members spaced left and right, but this is an example, and may be composed of a single member or a plurality of plural members, or may be provided on substantially the entire surface of the ceiling portion 101. In addition, the inlet 111 may not be a shape that is attached to the rear wall portion 104 and extends in the depth direction as illustrated in FIG. 1, and may be suspended from the ceiling portion 101 or embedded into the ceiling portion 101, for example. In addition, it is preferable that the inlet 111 is provided with a filter or a filter for removing dust or the like.

The air sent into the internal space S is sucked toward the outlet 112 provided at the lower portion of the rear wall portion 104, and is recovered by the air-conditioning apparatus 150 through the pipe 144 leading to the outlet. The shape of the outlet 112 may also be a horizontally long rectangle as shown in FIG. 1, but other shapes or arbitrary number of holes can be appropriately set. Here, specifically, the piping may be a circular tubular member, an angular tubular member, a pipe, or the like, and the same applies hereinafter.

In this way, the temperature-controlled air circulation of the air-conditioning device 150 controls the internal space S of the work shed 10 to a predetermined temperature. The wind speed of the airflow blown out from the inlet 111 is not limited to a specific value, but the wind speed is preferably 0.1 to 1 m/s. This is because if the wind speed is high, the airflow directly contacts the equipment and equipment installed in the internal space S to form a part of the cooled portion, which may cause a temperature distribution. In addition, in the present application, the wind speed of the airflow is defined by the wind speed (blowing wind speed) directly below the blow-out port such as the introduction port, the discharge port, and the like.

Also, the direct flow of external air into the internal space S is not good in terms of temperature control. Therefore, the internal space S is maintained at a slightly positive pressure by the air-conditioning device 150. Therefore, air slightly flows out of the internal space S through the opening 105 and the like (EA in FIG. 2 ). In order to fill the outflow of air and further maintain the internal space S at a positive pressure, the air conditioner 150 introduces air from the external air intake port 151 and adjusts the temperature together with the air recovered from the internal space S to achieve the required air volume Provide to the required parts.

(Airflow control at the opening) Furthermore, the characteristic airflow control in the opening 105 will be described using FIGS. 3 and 4 together. FIG. 3 is a schematic diagram showing the ejection device 120 of the first embodiment. FIG. 4 is a diagram schematically showing a horizontal section of the work shed 10.

The temperature-controlled air is supplied from the air-conditioning device 150 to the spray device 120 through the piping 141 leading to the spray device. The ejection device 120 includes an outer ejection port 121 (first ejection port) and an inner ejection port 122 (second ejection port) that are respectively vertically long and correspond to the length of the opening 105 in the vertical direction. The outer outlet 121 and the inner outlet 122 are parallel to each other. The outer outlet 121 is provided on a side farther from the inner space S than the inner outlet 122. The lengths of the outer outlet 121 and the inner outlet 122 are not limited to specific values, and may be, for example, 2 to 5 m. Also, as described above, when a plurality of ejection devices 120 are arranged along the edge of the opening 105, the lengths of the outer ejection port 121 and the inner ejection port 122 are not limited to specific values, and may be, for example, About 0.5～2m.

The outer outlet 121 blows 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 air outlet 122 blows 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, which is also an air curtain. The direction of the outside airflow 126 is parallel to the direction of the inside airflow 127 and has the same direction.

Compared to the outer airflow 126, the inner airflow 127 is a weaker airflow. Here, weaker airflow means that the wind speed is relatively small (slow). The preferred wind speed of the outer airflow 126 is 4-8 m/s, and typically 5 m/s. The preferred wind speed of the inner airflow 127 is a wind speed relatively smaller than the wind speed of the outer airflow 126, and is 3 to 6 m/s, typically 4 m/s. In addition, by maintaining the internal pressure at a positive pressure, the wind speed can be reduced. At this time, regarding the preferred wind speed, the outer airflow 126 may be 3 to 6 m/s, and the inner airflow 127 may be 2 to 4 m/s. By reducing the wind speed, the turbulence of the airflow is reduced, and the effect of the present invention that suppresses the influence of disturbance on the internal space S can be further exerted.

Moreover, it is more preferable that the wind speed of the inner airflow 127 is greater than the wind speed of the airflow blown out from the inlet 111 in the internal space S.

The suction device 130 plays a role of sucking air so as not to interfere with the outside air flow 126 and the inside air flow 127 flowing as layered air flows, respectively. It is preferable that the suction device 130 has two vertically long suction ports corresponding to the outer airflow 126 and the inner airflow 127, respectively. However, it may be one that has one vertically long suction port for inhaling both the outer airflow 126 and the inner airflow 127. It is preferable that the length of the vertically long suction port is the same as the outer discharge port 121 or the inner discharge port 122 of the discharge device 120. The air sucked by the suction device 130 is sent to the air conditioner 150 through the piping 142 leading to the suction device.

In addition, 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. Specifically, the distance between the ejection device 120 and the suction device 130 refers to the distance between the outer ejection port 121 (first ejection port) in the ejection device 120 and the suction port of the suction device 130 that sucks the outside airflow 126 And the distance between the inner discharge port 122 (second discharge port) of the discharge device 120 and the suction port of the suction device 130 that sucks the inner air flow 127. The preferred wind speed of the outer airflow 126 relative to the distance between the spraying device 120 and the suction device 130 is 2.5 to 5.5 m/s per 1 m of the distance between the spraying device 120 and the suction device 130, typically 3.3 m/ s. The preferred wind speed of the inner airflow 127 relative to the distance between the spraying device 120 and the suction device 130 is 2 to 4 m/s per 1 m of the distance between the spraying device 120 and the suction device 130, typically 2.7 m/s . Furthermore, when the internal pressure is maintained at a positive pressure, the outer airflow 126 may be 2 to 4 m/s and the inner airflow 127 may be 1 to 3 m/s per 1 m of the distance between the ejection device 120 and the suction device 130. . By reducing the wind speed, the turbulence of the airflow is reduced, and the effect of the present invention that suppresses the influence of disturbance on the internal space S can be further exerted.

(Effect of Embodiment 1) With the above configuration, the following contents are realized in the work shed 10 of the first embodiment.

An opening 105 is provided in a part of the front wall portion 103, so that it is easy for the worker to move in and out and carry in/out the article, and to easily enter the internal space S. Therefore, the efficiency of various operations using the work shed 10 becomes good.

Generally, in a work shed provided with such an opening, it is difficult to perform air-conditioning control of the internal space due to the inflow of outside air and the outflow of air in the internal space. For example, when temperature control is performed as air conditioning control, it is difficult to set the internal space S to a predetermined uniform temperature due to the inflow of outside air (an example of disturbance) where temperature control is insufficient. In addition, the inflow of wind (an example of disturbance) into the internal space will also disturb the airflow in the internal space. However, in the work shed 10, the air flow as an air curtain is formed in the opening 105, so that the inflow of outside air and the outflow of air in the internal space are suppressed. That is, play a role along the inside and outside of the partition.

The work shed 10 has a characteristic configuration that an outer airflow 126 (first airflow) and an inner airflow 127 (second airflow) are formed in the opening 105, and the inner airflow 127 is a weaker airflow than the outer airflow 126. The meaning of such a characteristic configuration will be described below.

The inventors first discussed the structure of forming a single layer of airflow (air curtain) at the opening. As a result, when the wind speed of the airflow is small, the effect of suppressing the inflow of outside air and the outflow of air in the internal space is poor, and the target temperature control in the internal space S cannot be achieved. Here, more specifically, the target temperature control means that the temperature distribution in the internal space S can be controlled to within ±0.1 degrees relative to the temperature target value.

Next, in order to improve the effect of the internal and external partitions, an attempt was made to increase the wind speed of the airflow. However, when trying to increase the wind speed of a single layer of airflow, the air in the internal space is sucked in and accelerated to become a state where the airflow enters the internal space. As a result, a part with a large wind speed is formed in the internal space, and the target temperature control cannot be achieved in the internal space. This is because the temperature distribution in the internal space S is disturbed due to the formation of a part with a large wind speed. Although various wind speeds have been discussed, the temperature distribution of the internal space targeted by a single layer of airflow (air curtain) cannot be achieved.

Also, here, the temperature distribution of the internal space S has been described, but the humidity distribution is almost the same.

Furthermore, it was also found that when a single layer of airflow is used, it is not possible to properly prevent the intrusion of dust. If the wind speed of the airflow of the single layer is reduced, there is a possibility that the airflow prevents dust from mixing into the internal space S and does not function sufficiently. On the other hand, when the airflow of a single layer is enhanced, dust may be caught in the airflow entering the internal space S, and as a result, the dust may be mixed into the internal space.

Therefore, the present inventors have considered that two layers of airflows, the outer airflow 126 having a large wind speed and the inner airflow 127 weaker than the outer airflow 126, are formed in the opening 105, and completed the present invention. The outside airflow 126 having a large wind speed plays a role of sufficiently blocking the inside and outside. That is, it plays a role of suppressing the influence of disturbance on the internal space S. On the other hand, the relatively weak inside airflow 127 functions to suppress the outside airflow 126 having a large wind speed from entering the internal space S. With such a unique air flow configuration and arrangement, in the work shed 10, target temperature control or humidity control can be achieved in the internal space S, and dust can be prevented from entering the internal space appropriately.

Furthermore, in the work shed 10, a suction device 130 for sucking air provided opposite to the discharge device 120 is provided at the edge of the opening 105. With this configuration, even in a region of the opening 105 far away from the outer outlet 121 and the inner outlet 122, the disturbance of the outer airflow 126 (first airflow) and the inner airflow 127 (second airflow) can be suppressed. With this, the target temperature control or the target humidity control in the internal space S and the prevention of dust mixing can be appropriately achieved.

In addition, by making the directions of the outer airflow 126 (first airflow) and the inner airflow 127 (second airflow) horizontal, the ejection device 120 and the suction device 130 can be placed vertically on the left and right of the opening 105. With this, it is possible to easily manufacture a work shed including the ejection device 120 and the suction device 130.

In the work shed 10, the outer airflow 126 (first airflow) and the inner airflow 127 (second airflow) are formed by air supplied from the air-conditioning apparatus 150. The airflow controlled by the air-conditioning device 150 forms the outside airflow 126 and the inside airflow 127, thereby suppressing factors that hinder the control of the internal space S, and the target air-conditioning control can be reliably achieved in the internal space S.

The ejection device 120 of Embodiment 1 used in the work shed 10 includes an outer ejection port 121 (first ejection port) for forming an outer airflow 126 (first airflow) and an inner side for forming an inner side weaker than the outer airflow 126 The inner jet port 122 (second jet port) of the air flow 127 (second jet). In a work shed provided with an opening, if the spray device 120 of this configuration is used, it is easy to enter the internal space, and at the same time, it is possible to achieve good temperature control of the internal space.

[Embodiment 2] Hereinafter, other embodiments of the present invention will be described. In addition, for the convenience of explanation, members having the same functions as those explained in the above embodiments are denoted by the same symbols, and the description thereof will not be repeated.

FIG. 5 is a diagram showing a schematic structure of the work shed 20 of the second embodiment. FIG. 5(1) is a diagram schematically showing a horizontal cross section of the schematic structure of the work shed 20 of the second embodiment. The work shed 20 is different from the work shed 10 of the first embodiment, and does not include a suction device 130 and piping 142 leading to the suction device. In addition, unlike the work shed 10, the discharge device 120 is provided at both the left and right edges of the opening 105. Each discharge device 120 is connected to a pipe 141 for supplying air that has undergone air conditioning control (temperature control) from the air-conditioning device 150 to the discharge device.

The left and right ejection devices 120 respectively form two-layer airflows of an outer airflow 226 (first airflow) having a large wind speed and an inner airflow 227 (second airflow) weaker than the outer airflow 226. As a result, the outer shapes of the left and right ejection devices 120 are mirror-symmetrical to each other. Furthermore, the direction of any air flow is horizontal.

The preferred wind speed of the outer airflow 226 is 2 to 4 m/s, and typically 3 m/s. The preferred wind speed of the inner airflow 227 is a wind speed relatively smaller than the wind speed of the outer airflow 226, and is 1 to 3 m/s, typically 2 m/s. In any case, the wind speeds of the outside airflow 226 and the inside airflow 227 are not limited to the above ranges, and can be set to different values as appropriate. However, as described above, the wind speed of the outer airflow 226 needs to be greater than the wind speed of the inner airflow 227.

In addition, the wind speeds of the outer airflow 226 and the inner airflow 227 can be appropriately adjusted according to the distance between each outer discharge port 121 (first discharge port) and each inner discharge port 122 (second discharge port) in the left and right discharge devices 120. The preferable wind speed of the outer airflow 226 relative to the distance between the left and right outer outlets 121 is 1 to 3 m/s per 1 m, and typically 2 m/s. The preferable wind speed of the inner airflow 227 with respect to the distance between the left and right inner ejection ports 122 is 0.5 to 2 m/s per 1 m, and typically 1.3 m/s.

Since the work shed 20 of the second embodiment supplies air from the left and right ejection devices 120, the wind speed of the outer airflow 226 and the inner airflow 227 can be reduced compared to the case of supplying air from one side. Therefore, the turbulence of the airflow is reduced, and the effect of the present invention that suppresses the influence of the disturbance on the internal space S can be further exerted.

The other configurations are the same as the work shed 10 of the first embodiment. With this, in addition to the effect by the suction device 130, the same effect as that of the first embodiment can be obtained in the work shed 20.

In addition, in the work shed 20, the outer airflow 226 and the inner airflow 227 are formed from the left and right sides with respect to the opening 105, so each airflow (air curtain) easily covers the opening 105. Therefore, it is easy to increase the width of the opening 105. On the other hand, the airflows from the left and right sides merge near the center of the opening 105 in the width direction, so there is a possibility that the airflow is easily disturbed. Therefore, the direction of the outer airflow 226 and the inner airflow 227 is set to be substantially parallel to the plane formed by the opening 105 (substantially parallel to the front wall portion 103) but slightly outward to make it difficult for the outer airflow 226 and the inner airflow 227 to enter the internal space S Is better.

5(2) is an explanatory diagram showing 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 airflow 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. The upper limit value is, for example, 40° or less, 35° or less, or 30° or less. The angles θi1 and θi2 of the left and right inner airflows 227 may be the same angle or different angles. The outer airflow 226 is also the same. 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. The upper limit value is, for example, 40° or less, 35° or less, or 30° or less. The angles θo1 and θo2 of the left and right outer airflows 226 may be the same angle or different angles. Furthermore, the angle of the inner airflow 227 and the angle of the outer airflow 226 may be the same angle or different angles. Furthermore, the angle (θi1, θi2, θo1, θo2) can be controlled to be variable according to conditions such as the temperature or humidity of the internal space S or the external space. With this, for example, even when the external environment or the like changes, the influence of the disturbance on the internal space S can be suppressed more satisfactorily. As a specific example, for example, if the temperature of the external space rises, the outer airflow 226 or the inner airflow 227 is heated by the radiant heat emitted from the floor, etc., so that the outer airflow or the inner airflow easily enters the inner space S. In this case, the effect of disturbance can be suppressed by making the angle more outward.

[Embodiment 3] FIG. 6 is a diagram schematically showing a cross-section cut with a vertical plane for showing the schematic structure of the work shed 30 of the third embodiment. The work shed 30 is different from the work shed 10 of the first embodiment, and does not include the suction device 130 and the piping 142 leading to the suction device. In addition, unlike the work shed 10, an ejection device 320 placed laterally is provided on the upper edge of the opening 105. The spray device 320 is connected to a pipe 141 for supplying air that has undergone air conditioning control (temperature control) from the air conditioner 150 to the spray device.

The jetting device 320 forms a two-layer airflow of an outer airflow 326 (first airflow) having a large wind speed and an inner airflow 327 (second airflow) weaker than the outer airflow 326. Furthermore, the direction of any air flow is downward in the vertical direction.

The other configurations are the same as the work shed 10 of the first embodiment. Thereby, in addition to the effect by the suction device 130, the same effect as the first embodiment can be obtained in the work shed 30.

In the work shed 30, an outside air flow 326 and an inside air flow 327 are formed from above the opening 105. Thereby, it is less likely to be restricted by the width direction of the opening 105, and it is easy to increase the width of the opening 105. In addition, a plurality of ejection devices 320 may be arranged along the upper edge of the opening 105.

The ejection device 320 of the third embodiment used in the work shed 30 is also provided with an outer ejection port (first ejection port) for forming the outer airflow 326 (first airflow), similar to the ejection device 120 of the first embodiment. And an inner jet port (second jet port) for forming an inner jet 327 (second jet) weaker than the outer jet 326. In a work shed provided with an opening, if the discharge device 320 of this configuration is used, it is easy to enter the internal space, and at the same time, it is possible to achieve good temperature control of the internal space.

[Embodiment 4] FIG. 7 is a diagram schematically showing a cross-section cut with a vertical plane for showing a schematic structure of the work shed 31 of the fourth embodiment. The work shed 31 of the fourth embodiment is a work shed 30 of the third embodiment in which a suction device 330 and a pipe leading to the suction device connected to the discharge device 320 are added. In the fourth embodiment, the suction device 330 is arranged below the opening 105. The suction device 330 can be arranged at a position higher than the floor surface 90. At this time, the construction of the work shed becomes easy. Alternatively, the suction device can be disposed below the floor surface 90. At this time, it does not hinder access to the internal space. In the work shed of the fourth embodiment, the same effect as the above-mentioned embodiment can be obtained.

[Embodiment 5] FIG. 8 is a diagram schematically showing a cross-section cut with a vertical plane for showing a schematic structure of the work shed 11 of the fifth embodiment. The work shed 11 of the fifth embodiment is one in which the suction device 130 and the piping 142 leading to the suction device are omitted from the work shed 10 of the first embodiment. In addition to the effect by the suction device 130, in the work shed 11 of the fifth embodiment, the same effect as the work shed 10 of the first embodiment can be obtained.

[Embodiment 6] Fig. 9 is a diagram schematically showing a front view of the work shed 12 of the sixth embodiment. The work shed 60 of the sixth embodiment is provided with the upper upper cover 160 covering the opening 105 on the work shed 10 of the first embodiment, and other configurations are the same.

When the temperature of the air supplied from the ejection device 120 is lower than the temperature of the external space, the air supplied from the ejection device 120 is heavier than the air in the external space, so it is confirmed that it tends to flow downward. Therefore, there is a possibility that outside air easily flows in from the upper portion of the opening 105. According to the work shed 12 of the sixth embodiment, since the upper upper cover 160 covering the opening 105 is provided, the inflow of outside air from the upper portion of the opening 105 can be suppressed. In addition, since the air supplied from the ejection device 120 diffuses up, down, left, and right, in the work shed 10 of the first embodiment, part of the air at the upper part of the opening 105 is dispersed upward and does not face the direction of the suction device 130. However, by providing the upper cover 160, the air supplied from the ejection device 120 can be rectified toward the suction device 130.

The shape of the upper cover 160 is not particularly limited, and is, for example, a plate member provided along the horizontal direction. From the viewpoint of rectifying the air flow supplied from the ejection 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 ejection device 120 flows.

[Embodiment 7] Fig. 10 is a diagram schematically showing a front view of the work shed 21 of the seventh embodiment. The work shed 21 of the seventh embodiment is provided with the upper upper cover 160 covering the opening 105 on the work shed 20 of the second embodiment, and other configurations are the same. As in the sixth embodiment, by providing the upper cover 160, inflow of outside air from the upper portion of the opening 105 can be suppressed. In addition, the air supplied from the ejection device 120 can be rectified toward the center of the opening 105.

As in the sixth embodiment, the shape of the upper cover 160 includes, for example, a plate member provided along the horizontal direction. From the viewpoint of rectifying the air flow supplied from the ejection 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 ejection device 120 flows.

[Embodiment 8] Fig. 11 is a diagram schematically showing a front view of the work shed 13 of the eighth embodiment. The work shed 13 of the eighth embodiment is the one where the wind speed of the air (outer airflow 126 and inner airflow 127) supplied from the ejection device 120 in the work shed 10 of the first embodiment differs between the upper part and the lower part. More specifically, the work shed 13 of the eighth embodiment is one in which the wind speed of the upper air of the air (outer airflow 126 and inner airflow 127) supplied from the ejection device 120 is faster than that of the lower air. Furthermore, the other components are the same.

When the temperature of the air supplied from the ejection device 120 is lower than the temperature of the external space, the air supplied from the ejection device 120 is heavier than the air in the external space, so it is confirmed that it tends to flow downward. Therefore, there is a possibility that outside air easily flows in from the upper portion of the opening 105. According to the work shed 13 of the eighth embodiment, the wind speed of the air on the upper side of the opening 105 is faster than the wind speed of the air on the lower side, so that the inflow of outside air from the upper portion of the opening 105 can be suppressed.

When the wind speed of the air (outer airflow 126 and inner airflow 127) supplied from the ejection device 120 is changed between the upper and lower parts, the speed of the two stages of high speed and low speed can be set, or the speed can be gradually increased upward The mode sets the speed of multiple stages.

In addition, in 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, in addition to a mechanism for increasing the linear velocity of the air on the upper side, a mechanism for increasing the amount of air on the upper side is included.

Here, the wind speed of the sucked air of the suction device 130 may be a constant wind speed in the height direction, or the wind speed of the air sucked from the upper side may be set in the same manner as the air supplied from the ejection device 120 It is faster than the lower side.

Also, as a modification of the work shed 13 of the eighth embodiment, when the temperature of the air supplied from the ejection device 120 is higher than the temperature of the external space, the wind speed of the air on the lower side is set to be higher than that of the air on the upper side The wind speed can be fast. Since the air supplied from the ejection device 120 is lighter than the air in the external space, it is confirmed that it tends to flow upward. Accordingly, at this time, 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, the inflow of outside air can be suppressed.

[Embodiment 9] Fig. 12 is a diagram schematically showing a front view of the work shed 22 of the ninth embodiment. The working shed 22 of the ninth embodiment is the one where the wind speed of the air (outside airflow 226 and inside airflow 227) supplied from the two ejection devices 120 in the working shed 20 of the second embodiment differs between the upper and lower parts. More specifically, the work shed 22 of the ninth embodiment is one in which the wind speed of the upper air of the air (outer airflow 226 and inner airflow 227) supplied from the ejection device 120 is faster than that of the lower air. Furthermore, the other components are the same. In addition, the setting of the wind speed of the air supplied from the ejection device 120 is the same as in the eighth embodiment, so it is omitted.

[Simulation experiment results] 13 to 15 are graphs showing the results of simulation experiments related to the temperature distribution of the working shed of the present invention. In the simulation experiment conditions, the temperature of the internal space was set at 23°C and the temperature of the external space was set at 28°C. As the temperature of the internal space was controlled to satisfy the goal of ±0.1°C, the effect of each component was verified. In addition, when the ejection device is provided on only one side in the first and sixth embodiments of FIG. 13, the wind speeds of the outside air flow and the inside air flow are set to 2 m/s, respectively. In addition, in the second embodiment of FIG. 14 and the seventh embodiment of FIG. 15, when the ejection devices are provided on both sides, in each ejection device, the wind speeds of the outside air flow and the inside air flow are each set to 2 m/s. Regarding the results of each simulation experiment, the left graph shows the temperature distribution of the vertical cross section of the opening at the position of the inner discharge port, and the right graph shows the temperature distribution of the vertical cross section of the opening at the position of the outer discharge port.

Fig. 13 shows (1) the temperature distribution of the work shed using Embodiment 1 and (2) the temperature distribution of the work shed using Embodiment 7. (1), (2) Both achieved excellent temperature distribution at the position of the inner ejection port. It is believed that this is the result of blocking the disturbance by the outside airflow, while suppressing the inflow of the outside airflow into the internal space by the inside airflow. Moreover, comparing (1) and (2), it was confirmed that when the upper cover 160 is provided, a more excellent temperature distribution is obtained. It is considered that this is a result of the airflow ejected from the ejection device 120 being rectified along the upper cover 160 toward the suction device 130 without being dispersed upward.

FIG. 14 shows (3) the temperature distribution of the opening when the airflow directions (θi1 and θi2, θo1 and θo2) are set to 0° in the work shed of Embodiment 2, (4) the operation in Embodiment 2 When the direction of airflow (θi1 and θi2, θo1 and θo2) in the shed is 15°, the temperature distribution of the opening, (5) In the working shed of Embodiment 2, the direction of airflow (θi1 and θi2, θo1 and θo2 ) The temperature distribution of the opening at 30°. Comparing (3), (4) and (5), the temperature distribution in the work shed (not shown) is confirmed when the direction of (4) airflow (θi1 and θi2, θo1 and θo2) is 15° ) Becomes the most excellent result, and then, in the order of (5) when the direction of the airflow is 30°, and (3) when the direction of the airflow is 0°, it becomes an excellent temperature distribution. It is considered that this is a result of directing the airflow to the outside space side when the airflows on both sides collide with each other by making the direction of the airflows ejected from both sides of the opening part slightly outward.

FIG. 15 shows (6) the temperature distribution of the opening when the airflow directions (θi1 and θi2, θo1 and θo2) are set to 0° in the work shed of Embodiment 7, (7) the operation in Embodiment 7 When the direction of the airflow (θi1 and θi2, θo1 and θo2) in the shed is 15°, the temperature distribution of the opening, (8) In the working shed of Embodiment 7, the direction of the airflow (θi1 and θi2, θo1 and θo2 ) The temperature distribution of the opening at 30°. Comparing (6), (7) and (8), it is confirmed that the direction of the airflow (θi1 and θi2, θo1 and θo2) is 15° as in the case of the work shed of Embodiment 2. Next, the temperature distribution (not shown) in the work shed becomes the most excellent result, and then, in the order of (8) when the airflow direction is 30°, (6) when the airflow direction is 0°, it becomes an excellent temperature distribution . Furthermore, if (6) and (4) are compared, (6) becomes a more excellent temperature distribution. That is, it can be said that the effect of maintaining the temperature of the internal space by the upper cover covering the upper part of the opening is particularly excellent.

[Additional Notes] In each of the above-mentioned embodiments, the airflow covering the opening is composed of the first outer airflow and the second inner airflow. However, for example, a third airflow may be formed between the first airflow and the second airflow. In this way, it can be assumed that two or more layers of multi-layer airflow are formed.

In each of the above-mentioned embodiments, each work shed may be installed in the interior of a factory or the like to constitute an internal space S that is further isolated. However, the work shed in the present invention is not limited to such a work shed, and may be a room built in a building such as a factory as a part of the building as the internal space S. In addition, it may be a work shed without an air conditioner, and it is possible to appropriately prevent the mixing of dust by using each embodiment.

[to sum up] The work shed in aspect 1 of the present invention includes the following structure: It includes a jetting part that jets air to the opening to the internal space isolated from the external space, and the jetting part is formed to suppress the disturbance from the external space from being introduced into the internal space The first airflow inside and the second airflow inside the first airflow prevent the introduction of the first airflow into the internal space.

According to the above configuration, a work shed that can easily enter the internal space without deteriorating environmental conditions can be realized.

The work shed in aspect 2 of the present invention in aspect 1 may have a configuration in which the ejection section ejects air so that the second airflow is weaker than the first airflow.

According to the above configuration, it is possible to specifically realize the second air flow that suppresses the introduction of the first air flow into the internal space.

The work shed in aspect 3 of the present invention has the following structure: it is provided with an ejection portion provided in an opening leading to the internal space isolated from the external space and ejecting air toward the opening, the ejection portion forming the first airflow and forming The second airflow, which is more inside than the first airflow and weaker than the first airflow, ejects air.

According to the above configuration, a work shed that can easily enter the internal space without deteriorating environmental conditions can be realized.

The work shed in aspect 4 of the present invention in any one of the above aspects 1 to 3 may have the following structure: the ejection section includes a first ejection port for forming the first airflow and a second ejection port for forming the second The second outlet of the air flow.

According to the above configuration, it is possible to specifically realize the formation of the first air flow and the second air flow required.

The work shed in aspect 5 of the present invention in any one of the above aspects 1 to 4 may have a configuration in which the direction of the first airflow and the second airflow are horizontal.

According to the above configuration, a work shed equipped with a suction device can be easily manufactured.

The work shed of aspect 6 of the present invention in any one of the above aspects 1 to 4 may have a configuration in which the direction of the first airflow and the second airflow are downward in the vertical direction.

According to the above configuration, it is less likely to be restricted by the width direction of the opening, and it is easy to increase the width of the opening.

The work shed in aspect 7 of the present invention in any one of the above aspects 1 to 6 may have a structure including a suction part for sucking air provided opposite to the ejection part.

According to the above configuration, the target air-conditioning control can be reliably achieved in the internal space.

The work shed in aspect 8 of the present invention in any one of the above aspects 1 to 5 may have the following structure: it is provided with two of the above-mentioned ejection parts, and the two of the above-mentioned ejection parts are arranged on both sides of the opening part. The directions of the first airflow and the second airflow formed by the two ejection portions are the direction of the opening and the direction toward the outside space side.

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

The work shed in aspect 9 of the present invention in any one of the above aspects 1 to 8 may have the following structure: an upper upper cover that covers the opening.

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

The work shed in aspect 10 of the present invention in any of the above aspects 1 to 9 may have a configuration in which the wind speeds of the first airflow and the second airflow formed by the ejection portion are different in the height direction.

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

The work shed of aspect 11 of the present invention in any of the above aspects 1 to 10 may have the following structure: further comprising an air-conditioning unit that performs air-conditioning control of the internal space, and the first air flow and the second air flow are formed by It is formed by the air supplied by the air-conditioning unit.

According to the above configuration, the target air-conditioning control can be reliably achieved in the internal space.

The work shed of aspect 12 of the present invention in any of the above aspects 1 to 11 may have a structure in which, in addition to the opening, a partition member is provided between the external space and the internal space.

According to the above configuration, it is possible to specifically realize the formation of the required internal space.

The ejection device according to aspect 13 of the present invention includes the following structure: the air is ejected to the opening to the internal space isolated from the external space, and the first air flow and the first air flow that suppress the disturbance from the external space from being introduced into the internal space are formed The second air flow that is inside the first air flow and prevents the first air flow from being introduced into the internal space.

According to the above configuration, it is possible to provide an ejection device that easily enters the internal space in a work shed provided with an opening without deteriorating the environmental conditions of the internal space.

The ejection device according to aspect 14 of the present invention includes the following structure: ejects air to the opening leading to the internal space isolated from the external space, and forms a first airflow and is formed inside the first airflow and above the first airflow 1 The second airflow with weak airflow ejects air.

According to the above configuration, it is possible to provide an ejection device that easily enters the internal space in a work shed provided with an opening without deteriorating the environmental conditions of the internal space.

The present invention is not limited to the above-mentioned embodiments, and various changes can be made within the scope shown in the patent application scope, and embodiments obtained by appropriately combining technical means disclosed in different embodiments are also included in the present invention. Within the scope of technology.

10, 11, 12, 13, 20, 21, 22, 30: work shed 101: Ceiling part (partition member) 102: Side wall part (partition member) 103: Front wall (partition member) 104: Rear wall (partition member) 105: opening 111: import port 112: Exit 120, 320: ejection device (ejection part) 121: Outer outlet (first outlet) 122: Inside spout (second spout) 126, 226, 326: outside airflow (first airflow) 127, 227, 327: inside airflow (second airflow) 130, 330: Suction device (suction section) 141: Piping to the spray device 142: Piping to the suction device 143: Piping to the inlet 144: Piping to the outlet 150: Air conditioner (air conditioning department) 151: Outside air intake S: interior space P: plane formed by the opening

FIG. 1 is a schematic structural diagram showing a working shed in Embodiment 1 of the present invention. FIG. 2 is a schematic vertical cross-sectional view of the working shed according to Embodiment 1 of the present invention. FIG. 3 is a schematic configuration diagram showing the ejection device according to Embodiment 1 of the present invention. FIG. 4 is a schematic horizontal cross-sectional view of the working shed in Embodiment 1 of the present invention. FIG. 5 is a schematic horizontal cross-sectional view of a working shed according to Embodiment 2 of the present invention. FIG. 6 is a schematic vertical cross-sectional view of a working shed according to Embodiment 3 of the present invention. 7 is a schematic vertical cross-sectional view of a working shed according to Embodiment 4 of the present invention. 8 is a schematic vertical cross-sectional view of a working shed in Embodiment 5 of the present invention. 9 is a front view of a work shed in Embodiment 6 of the present invention. Fig. 10 is a front view of a work shed in Embodiment 7 of the present invention. Fig. 11 is a front view of a work shed in Embodiment 8 of the present invention. Fig. 12 is a front view of a working shed in Embodiment 9 of the present invention. 13 is the result of a simulation experiment related to the temperature distribution of the work shed of the present invention. 14 is the result of a simulation experiment related to the temperature distribution of the work shed of the present invention. 15 is the result of a simulation experiment related to the temperature distribution of the work shed of the present invention.

10: Work shed

102: Side wall part (partition member)

103: Front wall (partition member)

104: Rear wall (partition member)

105: opening

111: import port

120: ejection unit (ejection device)

126: 1st airflow (outside airflow)

127: 2nd airflow (inside airflow)

130: Suction device (suction section)

141: Piping to the spray device

142: Piping to the suction device

143: Piping to the inlet

144: Piping to the outlet

150: Air conditioner (air conditioning department)

S: interior space

Claims (14)

A work shed is characterized by having a jetting part that jets air to an opening leading to an internal space isolated from an external space, The ejection portion forms a first air flow that suppresses disturbance from the external space being introduced into the internal space and a second air flow that inhibits the first air flow from being introduced into the internal space inside the first air flow. The work shed as described in item 1 of the patent application scope, in which The jetting part jets air so that the second airflow is weaker than the first airflow. A work shed is characterized by having an ejection portion provided in an opening leading to an internal space isolated from an external space and ejecting air toward the opening, The ejection portion ejects air so as to form a first airflow and a second airflow formed inside the first airflow and weaker than the first airflow. The work shed as described in any one of items 1 to 3 of the patent application scope, wherein, The ejection portion includes a first ejection port for forming the first airflow and a second ejection port for forming the second airflow. The work shed as described in any of items 1 to 4 of the patent application scope, wherein, The directions of the first airflow and the second airflow are horizontal. The work shed as described in any of items 1 to 4 of the patent application scope, wherein, The directions of the first airflow and the second airflow are downward in the vertical direction. The work shed according to any one of the items 1 to 6 of the patent application scope, further comprising a suction part for sucking air provided opposite to the ejection part. The work shed as described in any of items 1 to 5 of the patent application scope, wherein, Equipped with 2 aforementioned ejection parts, The two ejection parts are arranged on both sides of the opening, The directions of the first air flow and the second air flow formed by the two ejection portions are the direction of the opening and the direction toward the outside space side. The work shed according to any one of items 1 to 8 of the patent application scope, which includes an upper upper cover covering the opening. The work shed as described in any of items 1 to 9 of the patent application scope, wherein, The wind speeds of the first air flow and the second air flow formed by the ejection portion are different in the height direction. The work shed as described in any one of items 1 to 10 of the patent application scope, wherein, It also has an air-conditioning unit that performs air-conditioning control of the aforementioned internal space, The first airflow and the second airflow are formed by air supplied by the air-conditioning unit. The work shed according to any one of claims 1 to 11, wherein, in addition to the opening, a partition member is provided between the external space and the internal space. An ejection device that ejects air to an opening leading to an internal space isolated from an external space, It is characterized by forming a first airflow that suppresses disturbance from the external space being introduced into the internal space and a second airflow that is more inside than the first airflow, and suppresses the introduction of the first airflow into the internal space . An ejection device that ejects air to an opening leading to an internal space isolated from an external space, It is characterized in that air is ejected so as to form a first airflow and a second airflow formed inside the first airflow and weaker than the first airflow.

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