TWI727418B - Work shed and spouting device - Google Patents

Abstract

The subject of the present invention is to realize a work shed that can easily enter the internal space without deteriorating environmental conditions. In order to solve the above problems, the work shed (10) is equipped with a spray part (spout device (120)) that sprays air to the opening (105) leading to the inner space (S). The spray part is formed to suppress the disturbance from the outer space from being introduced into the The first airflow (outside airflow (126)) in the internal space and the second airflow (inside airflow (127)) that suppress the first airflow from being introduced into the internal space.

Description

Work shed and spouting device

The invention relates to a work shed and a spray device.

There is known a work shed for performing various tasks such as assembly or experiment of electronic parts/precision parts, operation of processing equipment/precision machinery, and the like. 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 Document)

Patent Document 1: Japanese Patent Application Publication No. 2014-169816

(Problems to be solved by the present invention)

In the work shed, an entrance that can enter the internal space is required for the entry and exit of workers or the entry/exit of articles. If structures such as doors, sliding doors, curtains, etc. are installed at the entrance and exit, entry will be troublesome and workability will be reduced. Therefore, it is conceived to provide a simple opening for the entrance and exit without providing such a structure. However, at this time, it is not sufficiently partitioned from the external space, and it is difficult to perform air conditioning control (for example, temperature control, humidity control, etc.) in the internal space. In addition, there is a concern that dust enters the internal space from the opening and the cleanliness of the internal space is reduced. In this way, when the entrance and exit of the work shed are simple openings, various environmental conditions (temperature, humidity, cleanliness, etc.) will deteriorate.

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

In order to solve the above-mentioned problems, the work shed of the present invention has the following structure: a spray part that sprays air to an opening leading to an internal space isolated from the external space, and the spray part is formed to suppress the disturbance from the external space from being introduced The first airflow into the internal space and the second airflow that suppress the introduction of the first airflow into the internal space are formed on the inner side of the first airflow. (Effects of the invention)

According to the same aspect of the present invention, it is possible to realize a work shed that can easily enter the internal space without deteriorating environmental conditions.

[Embodiment 1]

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

(The overall composition of the work shed) Fig. 1 is a diagram showing a schematic structure of a work shed 10 according to 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 has partition members assembled on the floor 90 (not included in the structure of the work shed 10), that is, a ceiling part 101, two side walls 102, a front wall part 103, and a rear wall part 104 from the outside. Space-separated internal space S. The size of the internal space S is not limited to a specific value, but it can be set to about 3 to 20 m in the depth direction, 3 to 20 m in the width direction, and 2 to 5 m in the height direction, for example.

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

In addition, the work shed 10 is provided with an air conditioner (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 used for various operations such as the assembly or experiment of electronic parts/precision parts, the operation of processing devices/precision machinery, etc., operations in an air-conditioned environment, and the operation of machinery. 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 humidity control or cleanliness control, for example.

The partition members (ceiling part 101, side wall part 102, front wall part 103, rear wall part 104) can be used as the wall material of the work shed by plastic curtain, heat-insulating non-combustible board, glass, acrylic board, metal plate, etc. The roof material is composed of appropriate well-known materials. Furthermore, in order to maintain the structural strength, it is preferable to assemble the partition members by using frames, columns, beams, etc. as appropriate.

The work shed 10 is provided with a spraying device (spraying part) 120 that sprays air to the opening 105. As a specific attachment position of the ejection device 120, for example, it can be attached to a part of the wall 103 before the end of the opening 105. In addition, a suction device (suction portion) 130 that sucks air is attached to a position facing the ejection device 120 (for example, a part of the wall 103 before the edge of the opening 105). The ejection device 120 and the suction device 130 are arranged on the outer side of the front wall portion 103 along a vertical line on the left and right sides of the opening portion 105, respectively. In addition, the air ejection port of the ejection device 120 is arranged to face the air suction port of the suction device 130. Furthermore, the work shed 10 of the first embodiment includes one ejection device 120 and one suction device 130, respectively. However, it may be configured such that a plurality of ejection devices 120 are arranged side by side along the edge of the opening 105 and have substantially the same function as a large ejection device. The same applies to the suction device.

(Temperature control of internal space) An inlet 111 for introducing temperature-controlled air into the inner space S of the work shed 10 is provided on the bottom surface of the ceiling portion 101. 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 inlet 111 releases to the internal space S an air flow (downstream air flow) controlled to be downward and uniform in the blowing direction. In FIG. 1, the introduction port 111 is depicted as two members separated left and right, but this is an example. It may be composed of a single member or a plurality of members, or may be provided on substantially the entire surface of the ceiling portion 101. In addition, the introduction port 111 may not have a shape that is attached to the rear wall 104 and extends in the depth direction as illustrated in FIG. 1, and may be hung on the ceiling portion 101 or embedded in the ceiling portion 101, for example. In addition, it is preferable to provide a filter or screen for removing dust and the like on the inlet 111.

The air sent into the internal space S is sucked toward the guide port 112 provided at the lower part of the rear wall portion 104, and is recovered by the air conditioner 150 through the pipe 144 leading to the guide port. The shape of the lead-out port 112 may be a horizontally long rectangle as shown in FIG. 1, but it can be set to other shapes or any number of holes as appropriate. Here, specifically, the pipe may be a round tubular member, an angular tubular member, a pipe, etc., and the same applies to the following.

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

In addition, 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 conditioner 150. Therefore, air flows out slightly from 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 inlet 151, and adjusts the temperature together with the air recovered from the internal space S to achieve the required air volume Provided to the required part.

(Air flow control at the opening) Furthermore, the characteristic airflow control in the opening part 105 is also demonstrated using FIG. 3 and FIG. 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 conditioner 150 to the spray device 120 through the pipe 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 vertically elongated and correspond to the length of the opening 105 in the vertical direction. The outer ejection port 121 and the inner ejection port 122 are parallel to each other. The outer ejection port 121 is provided on a side farther from the inner space S than the inner ejection port 122. 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, 2 to 5 m. In addition, 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 jet port 121 blows 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 103). Here, the outer airflow 126 is a layered airflow covering the opening 105, that is, an air curtain. In addition, the inner ejection port 122 blows the inner airflow 127 (second airflow) in a horizontal direction parallel to the plane formed by the opening 105 (parallel to the front wall 103). Here, the inner airflow 127 is a layered airflow covering the opening 105, which is also an air curtain. The direction of the outer airflow 126 and the direction of the inner airflow 127 are parallel and in the same direction.

Compared with the outer airflow 126, the inner airflow 127 is a weaker airflow. Here, weaker airflow means that the wind speed is relatively low (slow). The preferable wind speed of the outer airflow 126 is 4-8m/s, and it can be typically 5m/s. The preferred wind speed of the inner airflow 127 is a wind speed that is relatively smaller than the wind speed of the outer airflow 126, and is 3-6 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 preferable wind speed, the outer airflow 126 may be 3-6 m/s, and the inner airflow 127 may be 2-4 m/s. By reducing the wind speed, the turbulence of the airflow is reduced, and the effect of the present invention of suppressing the influence of the turbulence on the internal space S can be further exerted.

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

The suction device 130 plays a role of sucking air so as not to interfere with the outer airflow 126 and the inner airflow 127 flowing as layered airflows. Preferably, the suction device 130 has two longitudinal suction ports corresponding to the outer air flow 126 and the inner air flow 127, respectively. However, it may also have one longitudinal suction port which sucks in the airflow of both the outer airflow 126 and the inner airflow 127. As shown in FIG. The length of the longitudinally long suction port is preferably the same as that of 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 pipe 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. In detail, 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 outer airflow 126 And the distance between the inner ejection port 122 (second ejection port) in the ejection device 120 and the suction port of the suction device 130 that sucks the inner airflow 127. Relative to the distance between the ejection device 120 and the suction device 130, the preferred wind speed of the outer airflow 126 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. s. The preferred wind speed of the inner airflow 127 relative to the distance between the ejection device 120 and the suction device 130 is 2-4m/s per 1m between the ejection device 120 and the suction device 130, and typically can be 2.7m/s . Furthermore, when the internal pressure is maintained at a positive pressure, the outer air flow 126 can be 2 to 4 m/s, and the inner air flow 127 can be 1 to 3 m/s per 1 m 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 of suppressing the influence of the turbulence on the internal space S can be further exerted.

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

The opening 105 is provided in a part of the front wall portion 103, so that the worker's entry and exit, and the entry and exit of articles become easy, and it is easy to 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 external 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) whose temperature control is insufficient. In addition, the inflow of wind (an example of disturbance) into the internal space also disturbs the airflow in the internal space. However, in the work shed 10, since it is comprised so that the airflow which becomes an air curtain is formed in the opening part 105, the inflow of external air and the outflow of air in an internal space are suppressed. That is, it works along the direction of separating the inside and outside.

In addition, the work shed 10 has a characteristic structure in which 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 studied the structure of forming a single layer of air flow (air curtain) in the opening. As a result, when the wind speed of the airflow is small, the effect of suppressing the inflow of external 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 be within ±0.1 degrees with respect to the target temperature value.

Next, in order to improve the effect of separating the inside and outside, an attempt was made to increase the wind speed of the airflow. However, when trying to increase the wind speed of the single-layer airflow, the air in the internal space is sucked in and accelerated, and it becomes a state as if the airflow enters the internal space. As a result, a part of the high wind speed is formed in the internal space, and the target temperature control in the internal space cannot be achieved. This is because the temperature distribution in the internal space S is turbulent due to the formation of a part where the wind speed is high. Although various wind speeds have been studied, it has not been possible to achieve the target temperature distribution in the internal space with a single layer of air flow (air curtain).

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

In addition, it is also known that when a single-layer airflow is used, it is impossible to prevent dust from being mixed properly. If the wind speed of the single-layer airflow is lowered, there is a concern that the airflow will not fully function in preventing dust from mixing into the internal space S. On the other hand, when the single-layer airflow is increased, 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 inventors of the present invention considered the formation of two layers of airflow, namely the outer airflow 126 with a higher wind speed and the inner airflow 127 weaker than the outer airflow 126, in the opening 105, and completed the present invention. The outer airflow 126 with a high wind speed has the effect of making the partition effect between the inside and the outside sufficient. That is, it plays a role in suppressing the influence of the disturbance on the internal space S. On the other hand, the relatively weak inner airflow 127 plays a role of restraining the outer airflow 126 with a high wind speed from entering the internal space S. With such a unique airflow configuration and arrangement, in the work shed 10, target temperature control or humidity control in the internal space S can be achieved, and dust can be appropriately prevented from being mixed into the internal space.

Furthermore, in the work shed 10, the edge part of the opening part 105 is equipped with the suction device 130 which sucks air which is provided facing the ejection device 120. As shown in FIG. With this configuration, even in regions of the opening 105 that are away from the outer outlet 121 and the inner outlet 122, the outer airflow 126 (first airflow) and the inner airflow 127 (second airflow) can be suppressed from being turbulent. Thereby, the target temperature control or target humidity control in the internal space S and the prevention of dust mixing can be appropriately realized.

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 on the left and right of the opening 105 in the vertical direction. Thereby, a work shed equipped with the ejection device 120 and the suction device 130 can be easily manufactured.

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 conditioner 150. The outside air flow 126 and the inside air flow 127 are formed by the air controlled by the air conditioner 150 by air conditioning, thereby suppressing factors that hinder the control of the internal space S, and the target air conditioning control in the internal space S can be reliably achieved.

The ejection device 120 of the first embodiment used in the work shed 10 includes an outer side ejection port 121 (first ejection port) for forming an outer airflow 126 (first airflow) and an inner side for forming an inner side that is weaker than the outer airflow 126 The inner ejection port 122 (second ejection port) of the air flow 127 (second air flow). In a work shed with an opening, if the ejection 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 a good temperature control of the internal space.

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

FIG. 5 is a diagram showing the schematic structure of the work shed 20 of the second embodiment. Fig. 5(1) is a diagram schematically showing a cross section in the horizontal direction for showing 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 in that it does not have the suction device 130 and the pipe 142 leading to the suction device. In addition, unlike the work shed 10, the ejection device 120 is provided at both the left and right edges of the opening 105. Each spray device 120 is connected to a pipe 141 leading to the spray device for supplying air from the air conditioner 150 through the air conditioning control (temperature control).

The left and right ejection devices 120 respectively form two layers of airflow, namely, an outer airflow 226 (first airflow) with a high wind speed and an inner airflow 227 (second airflow) that is weaker than the outer airflow 226. Thereby, the outer shapes of the left and right ejection devices 120 are mirror-symmetrical to each other. Furthermore, the direction of any airflow is horizontal.

The preferred wind speed of the outer airflow 226 is 2 to 4 m/s, and typically may be 3 m/s. The preferred wind speed of the inner airflow 227 is a wind speed that is 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 outer airflow 226 and the inner airflow 227 are not limited to the aforementioned range, and can be appropriately set to different values. 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 the outer nozzles 121 (first nozzles) and the inner nozzles 122 (second nozzles) in the left and right ejection devices 120. The preferred wind speed of the outer airflow 226 with respect to the distance between the left and right outer spray ports 121 is 1 to 3 m/s per 1 m distance between the left and right outer spray ports 121, and may be 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 0.5-2 m/s per 1 m distance between the left and right inner ejection ports 122, and may be typically 1.3 m/s.

In the work shed 20 of the second embodiment, air is supplied from the left and right spray devices 120, and therefore the wind speeds of the outer airflow 226 and the inner airflow 227 can be reduced compared with the case where air is supplied from one side. Therefore, the turbulence of the air flow is reduced, and the effect of the present invention for suppressing the influence of the turbulence on the internal space S can be further exerted.

The other structure is the same as that of the work shed 10 of the first embodiment. Thereby, in addition to the effect based on the suction device 130, in the work shed 20, the same effect as that of the first embodiment can be obtained.

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 airflow from the left and right sides merges in the vicinity of the center portion in the width direction of the opening 105, so there is a concern that the airflow is likely to be turbulent. Therefore, the directions of the outer airflow 226 and the inner airflow 227 are set to be approximately parallel to the plane formed by the opening 105 (approximately parallel to the front wall portion 103) but slightly outward so that the outer airflow 226 and the inner airflow 227 are difficult to enter the internal space S For better.

FIG. 5(2) is an explanatory diagram 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 airflows 227 may be the same angle or different angles. The same applies to the outer airflow 226, and the angles θo1 and θo2 of the left and right outer airflow 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 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. In addition, the angles (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. Thereby, 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 in the external space rises, the outer airflow 226 or the inner airflow 227 is heated by radiant heat from the floor or the like, so that the outer airflow or the inner airflow easily enters the inner space S. At this time, the influence 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 in that it does not include the suction device 130 and the pipe 142 leading to the suction device. In addition, unlike the work shed 10, a spray device 320 placed laterally is provided on the upper edge of the opening 105. The spray device 320 is connected to a pipe 141 leading to the spray device for supplying air from the air conditioner 150 through the air conditioning control (temperature control).

The ejection device 320 forms two layers of air flow, the outer airflow 326 (first airflow) having a high wind speed, and the inner airflow 327 (second airflow) that is weaker than the outer airflow 326. Furthermore, the direction of any airflow is vertically downward.

The other structure is the same as that of the work shed 10 of the first embodiment. Thereby, in addition to the effect based on the suction device 130, in the work shed 30, the same effect as that of the first embodiment can be obtained.

In the work shed 30, an outer airflow 326 and an inner airflow 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, it may be configured such that a plurality of ejection devices 320 are arranged side by side along the upper edge of the opening 105.

The ejection device 320 of the third embodiment used in the work shed 30 is also equipped with an outer ejection port (first ejection port) for forming the outer airflow 326 (first airflow), similarly to the ejection device 120 of the first embodiment. And an inner jetting port (second jetting port) for forming an inner airflow 327 (second airflow) weaker than the outer airflow 326. In a work shed with an opening, if the ejection 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 a good temperature control of the internal space.

[Embodiment 4] FIG. 7 is a diagram schematically showing a cross section cut by a vertical plane for showing the schematic structure of the work shed 31 of the fourth embodiment. The work shed 31 of the fourth embodiment is one in which a suction device 330 arranged opposite to the ejection device 320 and a pipe connected to the suction device 330 are added to the work shed 30 of the third embodiment. 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 arranged at a position lower than the floor surface 90. At this time, it will 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 by a vertical plane for showing the schematic structure of the work shed 11 of the fifth embodiment. The work shed 11 of the fifth embodiment is the 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 based on 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 the other structures 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, and therefore, it is confirmed that it tends to flow downward. Therefore, there is a concern that external air may easily flow in from the upper portion of the opening 105. According to the work shed 12 of the sixth embodiment, the upper upper part cover 160 covering the opening 105 is provided, and therefore the inflow of outside air from the upper part of the opening 105 can be suppressed. In addition, the air supplied from the ejection device 120 spreads up, down, left and right, so in the work shed 10 of the first embodiment, a part of the air in 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 in the direction of the suction device 130.

The shape of the upper cover 160 is not particularly limited, and is, for example, a plate member arranged along the horizontal direction. From the viewpoint of rectifying the air flow supplied from the ejection device 120, the surface on the side of the opening 105 of the upper cover 160 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 the other structures are the same. 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 ejection device 120 can be rectified in the center direction of the opening 105.

As in the sixth embodiment, the shape of the upper cover 160 includes, for example, a plate member provided in the horizontal direction. From the viewpoint of rectifying the air flow supplied from the ejection device 120, the surface on the side of the opening 105 of the upper cover 160 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 one in which the wind speed of the air (outer airflow 126 and inner airflow 127) supplied from the spray device 120 in the work shed 10 of the first embodiment is different between the upper and lower parts. In more detail, the work shed 13 of the eighth embodiment is one in which the wind speed of the upper air of the air (the outer air flow 126 and the inner air flow 127) supplied from the spray device 120 is faster than the wind speed 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, and therefore, it is confirmed that it tends to flow downward. Therefore, there is a concern that external air may easily flow 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. Therefore, it is possible to suppress the inflow of outside air from the upper portion of the opening 105.

When the wind speed of the air (outer air flow 126 and inner air flow 127) supplied from the ejection device 120 is changed between the upper part and the lower part, the speed can be set in two stages of high speed and low speed, or the speed can be gradually increased toward the top. Ways to set the speed of multiple stages.

Furthermore, in the configuration that 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 also included.

Here, the wind speed of the air sucked by the suction device 130 may be set to 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.

In addition, as a modified example of the work shed 13 of the eighth embodiment, when the temperature of the air supplied from the spray device 120 is higher than the temperature of the external space, the wind speed of the air on the lower side can be set to be higher than that of the air on the upper side. The wind speed is fast. The air supplied from the ejection device 120 is lighter than the air in the external space, so 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 work shed 22 of the ninth embodiment is a work shed 20 of the second embodiment in which the wind speeds of the air (outer airflow 226 and inner airflow 227) supplied from the two ejection devices 120 are different between the upper part and the lower part. In more detail, the work shed 22 of the ninth embodiment is one in which the wind speed of the upper air of the air (the outer air flow 226 and the inner air flow 227) supplied from the spray device 120 is faster than the wind speed 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 that of the eighth embodiment, so it is omitted.

[Simulation experiment results] Figures 13 to 15 are graphs showing the results of simulation experiments related to the temperature distribution of the work shed of the present invention. The simulated experiment conditions were to set the temperature of the internal space to 23°C and the temperature of the external space to 28°C, as the temperature control of the internal space satisfies ±0.1°C to verify the effects of each configuration. In addition, in the case where the ejection device is provided only on one side in Embodiment 1 and Embodiment 6 of FIG. 13, the wind speeds of the outer airflow and the inner airflow are each set to 2 m/s. In addition, in Embodiment 2 of FIG. 14 and Embodiment 7 of FIG. 15 in the case where ejection devices are provided on both sides, in each ejection device, the wind speeds of the outer airflow and the inner airflow are each set to 2 m/s. Regarding the results of each simulation experiment, the left figure shows the temperature distribution of the vertical section of the opening at the position of the inner ejection port, and the right figure shows the temperature distribution of the vertical section of the opening at the position of the outer ejection port.

Fig. 13 shows (1) the temperature distribution of the work shed using the first embodiment, and (2) the temperature distribution of the work shed using the seventh embodiment. Both (1) and (2) achieved excellent temperature distribution at the position of the inner jet port. It is considered that this is the result of blocking the disturbance by the outer airflow, while suppressing the outer airflow from flowing into the inner space by the inner airflow. Moreover, when (1) and (2) are compared, it is confirmed that the temperature distribution becomes more excellent when the upper cover 160 is provided. It is considered that this is a result of the air flow jetted from the jetting device 120 being rectified to the suction device 130 along the upper cover 160 without being dispersed upward.

Figure 14 shows (3) the temperature distribution of the opening when the airflow direction (θi1 and θi2, θo1 and θo2) is set to 0° in the work shed of the second embodiment, and (4) the operation in the second embodiment The temperature distribution of the opening in the shed when the direction of airflow (θi1 and θi2, θo1 and θo2) is set to 15°, (5) the direction of the airflow (θi1 and θi2, θo1 and θo2) ) Is the temperature distribution of the opening at 30°. Comparing (3), (4) and (5), it is confirmed that the temperature distribution in the work shed (not shown in the figure) when the direction of (4) airflow (θi1 and θi2, θo1 and θo2) is 15° ) Becomes the most excellent result, and then (5) when the direction of the airflow is 30°, and (3) when the direction of the airflow is 0° becomes an excellent temperature distribution. It is considered that this is a result of the air flow being directed to the outside space side when the air flows on both sides collide with each other by turning the direction of the air flow jetted from both sides of the opening slightly to the outside.

Figure 15 shows (6) the temperature distribution of the opening when the airflow direction (θi1 and θi2, θo1 and θo2) is set to 0° in the work shed of the seventh embodiment, and (7) the operation in the seventh embodiment The temperature distribution of the opening in the shed when the direction of airflow (θi1 and θi2, θo1 and θo2) is set to 15°, (8) the direction of the airflow (θi1 and θi2, θo1 and θo2) ) Is the temperature distribution of the opening at 30°. Comparing (6), (7) and (8), it is confirmed that the airflow direction (θi1 and θi2, θo1 and θo2) is 15° in the same way as in the case of the work shed of the second embodiment. Next, the temperature distribution in the work shed (not shown) becomes the most excellent result. Then, the order of (8) when the airflow direction is 30° and (6) when the airflow direction is 0° becomes the 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 upper cover covering the opening is particularly excellent.

[Additional matters] In each of the above-mentioned embodiments, the airflow covering the opening is composed of the first airflow on the outside and the second airflow on the inner side. However, for example, the third airflow may be formed between the first airflow and the second airflow. In this way, it can be used to form two or more multi-layer airflows.

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

[to sum up] The work shed of aspect 1 of the present invention is provided with a spraying portion that sprays air to an opening leading to an internal space isolated from the external space, and the spraying portion is formed to suppress the disturbance from the external space from being introduced into the internal space The first air flow in the inner space and the second air flow that suppress the introduction of the first air flow into the internal space are formed on the inner side of the first air flow.

According to the above structure, it is possible to realize a work shed that can easily enter the internal space without deteriorating the environmental conditions.

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

According to the above configuration, it is possible to specifically realize the suppression of the second air flow from being introduced into the internal space by the first air flow.

The work shed of aspect 3 of the present invention has the following structure: it is provided with a spraying part that is provided in an opening leading to an internal space isolated from the external space and sprays air toward the opening, and the spraying part forms a first airflow and is formed in The air is ejected in a second air flow that is more inside than the first air flow and weaker than the first air flow.

According to the above structure, it is possible to realize a work shed that can easily enter the internal space without deteriorating the environmental conditions.

The work shed of aspect 4 of the present invention, in any one of the above aspects 1 to 3, may have the following configuration: the spray portion is provided with a first spray outlet for forming the first air flow and a first spray outlet for forming the second air flow. The second jet of airflow.

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

In any one of the above-mentioned aspects 1 to 4, the work shed of aspect 5 of the present invention may have a configuration in which the directions of the first air flow and the second air flow are horizontal.

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

In any one of the above-mentioned aspects 1 to 4, the work shed of aspect 6 of the present invention may have a configuration in which the directions of the first air flow and the second air flow are vertically downward.

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 of aspect 7 of the present invention, in any one of aspects 1 to 6 described above, may have a configuration including a suction part that sucks 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 working shed of aspect 8 of the present invention, in any one of the above aspects 1 to 5, may have the following configuration: it is provided with two ejection portions, the two ejection portions are arranged on both sides of the opening, and the The directions of the first air flow and the second air flow formed by the two ejection portions are the direction of the opening portion and the direction toward the outer space side.

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

The work shed of aspect 9 of the present invention, in any one of aspects 1 to 8 described above, may have a structure including an upper upper cover covering the opening.

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

The work shed of aspect 10 of the present invention, in any one of aspects 1 to 9 above, 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, the inflow of outside air can be suppressed, and therefore 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 one of the above aspects 1 to 10, may have the following configuration: further having an air conditioning unit that performs air conditioning control of the internal space, and the first air flow and the second air flow are composed of 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 one of the above aspects 1 to 11, may have a configuration in which, in addition to the opening, a partition member is further provided between the external space and the internal space.

According to the above structure, the necessary internal space can be formed concretely.

The ejection device of aspect 13 of the present invention has a structure that ejects air to an opening that leads to an internal space isolated from the external space, and forms a first air flow that suppresses the disturbance from the external space being introduced into the internal space and The second air flow that is more inside than the first air flow and suppresses the introduction of the first air flow into the internal space.

According to the above-mentioned structure, it is possible to provide a spray device that can easily enter the internal space in a work shed with an opening, while not deteriorating the environmental conditions of the internal space.

The ejection device of aspect 14 of the present invention has a structure in which air is ejected to an opening leading to an internal space isolated from the external space to form a first air flow and is formed on the inner side than the first air flow and is greater than the first air flow. 1 The second air current is weak, and the air is sprayed out.

According to the above-mentioned structure, it is possible to provide a spray device that can easily enter the internal space in a work shed with an opening, while not deteriorating the environmental conditions of the internal space.

The present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope indicated in the scope of the patent application, and embodiments obtained by appropriately combining the technical means disclosed in the 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 (partition member) 103: Front wall (partition member) 104: Rear wall (partition member) 105: opening 111: inlet 112: export 120, 320: ejection device (ejection part) 121: Outer nozzle (1st nozzle) 122: Inside nozzle (2nd nozzle) 126, 226, 326: Outer airflow (first airflow) 127, 227, 327: inside airflow (second airflow) 130, 330: suction device (suction part) 141: Piping to the ejection device 142: Piping to the suction device 143: Piping to the inlet 144: Piping to the outlet 150: Air Conditioning Unit (Air Conditioning Department) 151: Outside air inlet S: Internal space P: The plane formed by the opening

Fig. 1 is a schematic diagram showing the structure of the work shed according to the first embodiment of the present invention. Fig. 2 is a schematic vertical cross-sectional view showing the work shed of the first embodiment of the present invention. Fig. 3 is a schematic diagram showing the configuration of the ejection device according to the first embodiment of the present invention. Fig. 4 is a schematic horizontal cross-sectional view showing the work shed of the first embodiment of the present invention. Fig. 5 is a schematic horizontal cross-sectional view showing the work shed of the second embodiment of the present invention. Fig. 6 is a schematic vertical cross-sectional view showing the work shed of the third embodiment of the present invention. Fig. 7 is a schematic vertical cross-sectional view showing the work shed of the fourth embodiment of the present invention. Fig. 8 is a schematic vertical cross-sectional view showing the work shed of the fifth embodiment of the present invention. Fig. 9 is a front view of a work shed according to the sixth embodiment of the present invention. Fig. 10 is a front view of a work shed according to the seventh embodiment of the present invention. Fig. 11 is a front view of a work shed according to Embodiment 8 of the present invention. Fig. 12 is a front view of a work shed according to the ninth embodiment of the present invention. Fig. 13 is the result of a simulation experiment related to the temperature distribution of the work shed of the present invention. Fig. 14 is the result of a simulation experiment related to the temperature distribution of the work shed of the present invention. Fig. 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 (partition member)

103: Front wall (partition member)

104: Rear wall (partition member)

105: opening

111: inlet

120: Discharge part (discharge device)

126: First airflow (outside airflow)

127: second airflow (inside airflow)

130: Suction device (suction part)

141: Piping to the ejection device

142: Piping to the suction device

143: Piping to the inlet

144: Piping to the outlet

150: Air Conditioning Unit (Air Conditioning Department)

S: Internal space

Claims (14)

A work shed, characterized in that it is provided with a spray part for spraying air to an opening leading to an internal space isolated from an external space, and the spray part forms a first airflow that suppresses the disturbance from the external space being introduced into the internal space And forming a second air flow that suppresses the introduction of the first air flow into the internal space on the inner side of the first air flow, and the second air flow is formed throughout the opening. The work shed described in claim 1, wherein the ejection portion ejects air so that the second air flow is weaker than the first air flow. A work shed, characterized in that it is provided with a spraying portion which is provided at an opening leading to an internal space isolated from an external space and sprays air toward the opening, and the spraying portion forms a first air flow and is formed more than the first air flow. Air is ejected by a second air flow that is further inside and weaker than the first air flow, and this second air flow is formed throughout the opening. The work shed described in any one of items 1 to 3 in the scope of the patent application, wherein the ejection portion is provided with a first ejection port for forming the first air flow and a second ejection port for forming the second air flow . The work shed as described in any one of items 1 to 3 in the scope of the patent application, wherein the directions of the first air flow and the second air flow are horizontal. The work shed as described in any one of items 1 to 3 in the scope of the patent application, wherein the directions of the first air flow and the second air flow are vertically downward. The work shed as described in any one of items 1 to 3 in the scope of the patent application, wherein a suction part for sucking air is provided opposite to the aforementioned ejection part. The work shed as described in any one of items 1 to 3 in the scope of the patent application, wherein the two ejection portions are provided, and the two ejection portions are arranged on both sides of the opening, and are formed by the two ejection portions. The directions of the first air flow and the second air flow are the direction of the opening and are the direction toward the outer space side. The work shed described in any one of items 1 to 3 in the scope of the patent application includes an upper upper cover covering the opening. Such as the working shed described in any one of items 1 to 3 in the scope of patent application, 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 3 of the scope of the patent application, which further has an air conditioning unit for performing air conditioning control of the internal space, and the first air flow and the second air flow are supplied by the air conditioning unit The air is formed. According to the work shed described in any one of items 1 to 3 in the scope of the patent application, in addition to the aforementioned opening, a partition member is further provided between the aforementioned external space and the aforementioned internal space. An ejection device that ejects air toward an opening leading to an internal space isolated from an external space, and is characterized by forming a first airflow that suppresses disturbances from the external space and being introduced into the internal space and a higher airflow than the first airflow The second air flow that is further inside prevents the first air flow from being introduced into the internal space, and the second air flow is formed throughout the opening. An ejection device that ejects air toward an opening leading to an internal space isolated from an external space, and is characterized by forming a first airflow and a first airflow formed on the inner side of the first airflow and weaker than the first airflow 2 The way of air flow to spray air, the The second air flow is formed throughout the opening.

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