JP2018017419A - Ventilation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology capable of improving energy saving characteristic to reduce operation cost while keeping air environment in the horizontal ventilation space at each of the floors in comfortable state at a ventilation system for performing a ventilation of horizontal ventilation space arranged at each of the floors of a building under utilization of natural wind and blown air by auxiliary blowing means.SOLUTION: This invention relates to a ventilation system including auxiliary air blowing means 2 capable of assisting horizontal ventilation along a horizontal direction at the horizontal ventilation spaces R at a building 100 having horizontal ventilation spaces R with several open-circuit segments O opened to external side to enable external air to be ventilated in a horizontal direction through several open-circuit segments O at several floors F, there are provided vertical ventilation segments 1 that are installed at horizontal ventilation spaces R of several floors F and have openings 1a, 1b opened to the horizontal ventilation spaces R of several floors F.SELECTED DRAWING: Figure 2

Description

  The present invention provides a horizontal ventilation space on a plurality of floors that has a horizontal ventilation space on a plurality of floors through which a plurality of open portions that are open to the outside can be ventilated in the horizontal direction, along the horizontal direction of the horizontal ventilation space. The present invention relates to a ventilation system provided with auxiliary air blowing means capable of assisting horizontal ventilation.

  Ventilation in a horizontal ventilation space in which outside air can flow in the horizontal direction through a plurality of open parts opened to the outside is basically performed by natural air flowing in and out through the open parts, but the natural wind is weak and ventilated. When the shortage occurs, auxiliary ventilation means such as a blower arranged in the horizontal ventilation space is operated to assist the horizontal ventilation in the horizontal ventilation space and ensure the necessary ventilation amount (for example, Patent Document 1 and 2).

  Thus, the ventilation system that ventilates the horizontal ventilation space by the natural wind and the ventilation by the auxiliary ventilation means can be applied to the ventilation of the horizontal ventilation space provided on each floor of the building. As a building having a horizontal ventilation space on a plurality of floors as described above, for example, there is a logistics facility having, as a horizontal ventilation space, a central roadway in which vehicles enter and leave each of the plurality of floors having a warehouse space for storing luggage. That is, in this logistics facility, the central lanes on each floor are open to the outside through the vehicle entrance / exit, so that the ventilation of the central lane on each floor is horizontal and the outside air is horizontally directed to the central lane through the vehicle entrance / exit. Ventilation is performed, and an auxiliary blower can be arranged on the central roadway to assist horizontal ventilation in the central roadway.

JP-A-2005-114287 JP-A-55-105099

  In a building with horizontal ventilation space on multiple floors, when natural ventilation is used to ventilate horizontal ventilation spaces on each floor, strong natural winds can be expected on the upper floors, but natural winds are generally weak on the lower floors. For this reason, there is a concern about the deterioration of the air environment due to insufficient ventilation, such as stagnation of the exhaust gas of the vehicle passing through the central roadway as the horizontal ventilation space, and the increase of the air temperature due to the heat of the exhaust gas. Therefore, on the lower floor, in order to eliminate such ventilation shortage, it is necessary to operate the auxiliary air blowing means at a relatively high load, which causes a problem that the power consumption increases and the operation cost increases. .

  In view of this situation, the main problem of the present invention is that in the ventilation system for ventilating the horizontal ventilation space provided on each floor of the building using the natural wind and the ventilation by the auxiliary ventilation means, the air in the horizontal ventilation space of each floor The object is to provide a technology capable of improving energy saving and reducing operating costs while maintaining a comfortable environment.

The first characteristic configuration of the present invention has a plurality of open portions that are open to the outside, and a building having horizontal ventilation spaces on a plurality of floors through which the outside air can flow in the horizontal direction through the plurality of open portions.
A ventilation system provided with auxiliary ventilation means capable of assisting horizontal ventilation along the horizontal direction in the horizontal ventilation space in the horizontal ventilation space of each floor,
It lies over a horizontal ventilation space of a plurality of floors, and is provided with a draft ventilation portion having an opening that opens into the horizontal ventilation space of a plurality of floors.

According to this configuration, in the building in which the horizontal ventilation space in which the auxiliary air blowing means is arranged is provided on a plurality of floors, since the vertical ventilation portion that connects the horizontal ventilation spaces on the upper and lower floors is provided, the temperature difference between the air and Due to the pressure difference, a part of the air in the horizontal ventilation space on the lower floor can be raised and discharged through the inside ventilation section.
More specifically, since the horizontal ventilation by the natural wind in the horizontal ventilation space of the lower floor is generally weaker than that of the upper floor, the air temperature in the horizontal ventilation space of the lower floor tends to be higher than that of the upper floor. Therefore, in the vertical ventilation section connecting the horizontal ventilation spaces of the upper and lower floors, a temperature difference occurs such that the air temperature on the lower floor side is higher than that on the upper floor side, and this temperature difference causes the so-called chimney effect. An upward flow called will occur.
Moreover, generally strong horizontal ventilation can be expected in the vicinity of the upper end opening of the ventilation section. Therefore, if the air in the ventilation section is attracted to the outside from the upper end opening by using the power of the horizontal ventilation, the pressure in the ventilation section is such that the pressure in the vicinity of the upper opening becomes smaller than the lower side. A difference occurs, and this pressure difference causes an upward flow.
When an upward flow is generated in the ventilation section connecting the horizontal ventilation spaces on the upper and lower floors, a part of the air in the horizontal ventilation space on the lower floor is raised to the upper floor through the ventilation section and discharged. can do.

In this way, in the horizontal ventilation space on the lower floor, even if the ventilation power of the auxiliary ventilation means to supplement the horizontal ventilation is reduced, the ventilation is strengthened and the deterioration of the air environment due to insufficient ventilation with respect to the necessary ventilation is eliminated. can do.
Therefore, according to the present invention, it is possible to improve the energy saving and reduce the operation cost while maintaining a comfortable air environment in the horizontal ventilation space of each floor.

  The second characteristic configuration of the present invention is that the upper end opening of the vertical ventilation section is provided as an opening that opens into a horizontal ventilation space on an upper floor.

  According to this configuration, the upper end opening of the vertical ventilation portion does not directly open to the outside but opens to the horizontal ventilation space of the upper floor, so that the air in the horizontal ventilation space of the lower floor is By raising a part to the upper floor side through the inside ventilation section and introducing it into the horizontal ventilation space of the upper floor, it can be discharged to the outside together with the horizontal ventilation of the horizontal ventilation space. In addition, in the horizontal ventilation space on the upper floor provided with the auxiliary air blowing means, relatively strong horizontal ventilation can be stably obtained. Can be attracted stably and sufficiently. Therefore, the air in the draft ventilation part can be suitably discharged to the outside together with the horizontal ventilation in the horizontal ventilation space.

  The 3rd characteristic structure of this invention exists in the point by which the said ventilation part is distributedly arranged in the horizontal direction several places in the said horizontal ventilation space.

  According to this configuration, a part of the air in the horizontal ventilation space on the lower floor is exhausted through the ventilation sections distributed in a plurality of locations. Can be resolved.

According to a fourth characteristic configuration of the present invention, the auxiliary air blowing means is configured to be capable of adjusting the air blowing state,
It is in the point provided with the ventilation control means which controls the ventilation state of the auxiliary ventilation means according to the natural ventilation state of the horizontal ventilation by the natural wind in the horizontal ventilation space.

  According to this configuration, the horizontal ventilation is controlled by controlling the blowing state such as the blowing direction and the blowing amount of the auxiliary blowing unit according to the natural ventilation state such as the direction and strength of the horizontal ventilation by the natural wind in the horizontal ventilation space. It is possible to appropriately assist horizontal ventilation in the space, and it is possible to realize appropriate horizontal ventilation using natural wind and air blowing by auxiliary blowing means.

  According to a fifth characteristic configuration of the present invention, the openings of the floors of the vertical ventilation section are opened in a direction substantially orthogonal to the horizontal ventilation direction of the horizontal ventilation space.

  According to this configuration, the opening of each floor provided in the ventilation section is opened in a posture substantially orthogonal to the horizontal ventilation direction of the horizontal ventilation space, so that an attractive force is generated from the ventilation section toward the horizontal ventilation space. Can be generated. In general, the closer to the upper floor, the greater the flow velocity of the horizontal draft due to natural wind. Therefore, the attraction force added to the opening of the ventilation section of each floor increases as the floor is closer to the upper floor. As a result, a pressure gradient that decreases in the upward direction is generated in the ventilation section, so that the air can be suitably raised, and the air from the horizontal ventilation space on the lower floor to the horizontal ventilation space on the upper floor Can be introduced more efficiently. Furthermore, in the case where the direction of horizontal ventilation in the horizontal ventilation space is reversed, the opening direction of the opening can be determined by making the opening direction of the opening in the vertical ventilation section substantially orthogonal to the direction of one horizontal ventilation. Can be made substantially orthogonal to the other horizontal ventilation direction. Therefore, the attractive force according to the flow velocity of horizontal ventilation can be generated in the opening part of each floor using both horizontal ventilations which reverse.

Plan sectional view of a logistics facility equipped with a ventilation system of this embodiment Fig. 1 is a vertical sectional view of the logistics facility Side sectional view of the logistics facility shown in FIG. The figure explaining the ventilation control state by a ventilation control means Plan sectional view of a logistics facility provided with a ventilation system according to another embodiment

Embodiments of the present invention will be described with reference to the drawings.
A distribution facility 100 shown in FIGS. 1, 2 and 3 is a central roadway on each of a plurality of floors F having a warehouse space W for storing luggage, and through which a vehicle T such as a truck passes adjacent to the warehouse space W. The ventilation system of this embodiment is constructed for ventilation of the central road R in the logistics facility 100. In the present embodiment, the logistics facility 100 is provided with central roads R1, R2, R3, R4 having a plurality of open portions O1-O4 on each of the four floors F1, F2, F3, F4. A building.

  As shown in FIGS. 1 and 2, the central lane R of each floor F is configured as a straight lane having a vehicle entrance / exit 10 leading to the rampway L at both ends, and warehouses are provided on both sides thereof. A space W is provided. In addition, a truck berth B on which the vehicle T can stop for loading and unloading of luggage is provided on the central road R side of the warehouse space W. In the present embodiment, the warehouse space W is configured to perform ventilation independent of the central road R.

  Each vehicle entrance / exit 10 across the central road R is appropriately provided with an automatic opening / closing shutter (not shown) that is opened when the vehicle enters / exits. The vehicle entrance / exit openings 10 provided at both ends of the central lane R function as a plurality of open portions O opened outdoors (an example of the outside), and the central lane R has a plurality of open portions O. It functions as a horizontal ventilation space through which outside air can flow in the horizontal direction. That is, the central road R is ventilated by the outside air flowing in the horizontal direction through a plurality of open portions O opened outdoors, and the horizontal ventilation along the horizontal direction causes the wind to flow out through the open portion O. It is done by entering.

  Further, as shown in FIGS. 2 and 3, the floor height of the uppermost floor F4 is higher than the floors F1 to F3 on the other lower floor side. Above the exit port 10 is provided a gallery 11 for allowing outside air to flow in and out. That is, in the uppermost floor F4, the gallery 11 in addition to the vehicle entrance / exit 10 functions as the opening part O4, so that the opening area of the opening part O4 in the uppermost floor F4 is the other lower floor side. It is larger than each floor F1-F3. In addition, natural wind generally tends to be stronger as the altitude is higher. Therefore, in the uppermost floor F4, inflow and outflow of natural wind through the open part O4 compared to the other floors F1 to F3 on the other lower floor side. The amount increases, and the amount and speed of horizontal draft due to natural wind in the central road R4 tend to increase.

Thus, when ventilation of the central road R of each floor F is performed using natural wind, ventilation may be insufficient only with natural wind. Therefore, the auxiliary air blowing means 2 capable of assisting horizontal ventilation along the horizontal direction in the central road R is provided in the central road R of each floor F.
Specifically, the auxiliary air blowing means 2 is composed of a first air blower 2a and a second air blower 2b arranged alternately along the extending direction of the central road R.

  As shown in FIGS. 1 and 2, the first blower 2a is directed from the opening portion O on one side toward the opening portion O on the other side (for example, the direction from the right side to the left side in FIGS. It is installed in the vicinity of the ceiling (upper side) of the central lane R, as it blows air in the direction of 1 ventilation direction X1 ". On the other hand, the second blower 2b is the direction opposite to the first blower 2a. (For example, the direction from the left side to the right side in FIGS. 1 and 2; hereinafter referred to as “second ventilation direction X2”) is installed near the ceiling (upper side) of the central road R.

  That is, the auxiliary air blowing means 2 is a first air blowing state in which only the first air blower 2a is operated as shown in FIG. 4 (a), and a second air in which only the second air blower 2b is operated as shown in FIG. 4 (b). It is possible to reverse the blowing direction, which is the blowing state, by switching the blowing state. Further, the auxiliary blower 2 adjusts the duty ratio of the blowers 2a and 2b that are operated intermittently, adjusts the number of blowers 2a and 2b to be actuated, and the operation output of the blowers 2a and 2b in the working state. By adjusting the air flow, it is possible to adjust the air flow rate in the air blowing state.

  And the control apparatus (illustration omitted) which controls the action | operation of the ventilation system of this embodiment is provided, This control apparatus performs a predetermined | prescribed program, and the horizontal ventilation by the natural wind in the center lane R is carried out. It functions as the air blowing control means 15 that controls the air blowing state of the auxiliary air blowing means 2 according to the natural ventilation state. Below, the detail of the ventilation control by the ventilation control means 15 is added based on FIG. In FIG. 4, the illustration of the saddle duct 1 is omitted.

That is, as shown in FIG. 4A, for example, when the direction of the natural wind measured by an anemometer (not shown) provided outdoors is a direction along the first ventilation direction X1, the air flow control is performed. The means 15 operates only the first blower 2a that blows air along the first ventilation direction X1. Thereby, when horizontal ventilation of the 1st ventilation direction X1 arises in the central road R by natural wind, the horizontal ventilation can be assisted by ventilation of the 1st air blower 2a.
On the other hand, as shown in FIG. 4B, when the direction of the natural wind is the direction along the second ventilation direction X2, the blow control unit 15 performs the second blowing along the second ventilation direction X2. Only the blower 2b is operated. Thus, when horizontal ventilation in the second ventilation direction X2 occurs in the central road R due to natural wind, the horizontal ventilation can be assisted by the ventilation of the second blower 2b.

  Further, the air blowing control means 15 is an auxiliary air blowing means so that the wind speed of horizontal ventilation in the central road R measured by an anemometer (not shown) provided in the central road R is maintained at the target wind speed. 2 is controlled. As a result, the wind speed of the horizontal draft in the central road R is maintained at the target wind speed for proper ventilation.

  Thus, when performing the ventilation control by the ventilation control means 15, for example, a stronger natural wind can be expected at a floor closer to the uppermost floor F 4, so that the operation frequency and the operation power of the auxiliary blowing means 2 can be suppressed low. However, for example, the floor closer to the lowest floor F1 cannot be expected to have a strong natural wind, so there is a concern that the air environment will deteriorate due to insufficient ventilation only with the natural wind. Therefore, on the floor close to the lowest floor F1, the operation frequency and the operation power of the auxiliary air blowing means 2 are increased, and as a result, there may be a problem that the operation cost increases.

Therefore, the ventilation system of the present embodiment has a characteristic configuration for improving the energy saving and reducing the operation cost while maintaining the comfortable air environment of the central road R of each floor F. Details of the characteristic configuration will be described below.
That is, as shown in FIGS. 2 and 3, the distribution facility 100 has openings 1 a and 1 b that extend over the central road R of the plurality of floors F and open to the central road R of the plurality of floors F. A saddle duct 1 (an example of a draft ventilation section) is provided. Specifically, the culvert duct 1 is composed of a rectangular duct extending from the lowest floor F1 to the uppermost floor F4 and extending in the vertical direction. Each floor on the lower floor side of the first to third floors An opening 1a that opens near the floor surface (lower side) of the central lanes R1 to R3 in F1 to F3, and an opening that opens near the ceiling (upper side) of the central lane R4 on the uppermost floor F4 of the fourth floor. 1b. As shown in FIG. 1, such dredging ducts 1 are distributed and arranged at a plurality of locations in the extending direction (horizontal direction) of the central road R on both sides of the central road R.

  Further, as shown in FIGS. 2 and 3, the openings 1 a and 1 b of the floors F of the culvert duct 1 are always in the horizontal ventilation direction even when the horizontal ventilation direction in the central lane R is reversed. Are opened in a substantially orthogonal direction. Specifically, the opening 1a that opens to the central lanes R1 to R3 of the floors F1 to F3 on the lower floor side opens to the side facing the center side of the central lane R (inside from the central lane R). However, the opening direction is formed so as to be perpendicular to the extending direction of the central road R in the vertical duct 1. On the other hand, the opening 1b that opens to the central carriageway R4 of the uppermost floor F4 is formed as an upper end opening of the saddle duct 1. That is, the opening 1b of the culvert duct 1 is not directly opened outdoors, but is opened to the central road R4 of the uppermost floor F4.

  As described above, the saddle duct 1 is provided, so that part of the air in the central roads R1 to R3 in the floors F1 to F3 on the lower floor side passes through the opening 1a due to the temperature difference or pressure difference of the air. It goes up into the duct 1 and rises. The air that has risen in the culvert duct 1 is introduced into the central road R4 of the uppermost floor F4 through the opening 1b, and then discharged to the outside along with the horizontal ventilation of the central road R4.

That is, as shown in FIGS. 2 and 3, the horizontal draft due to natural wind in the central roads R1 to R3 of the lower floors F1 to F3 is generally weaker than the uppermost floor F4. The air temperature of the central roads R1 to R3 on the respective floors F1 to F3 is likely to rise more than the uppermost floor F4. As a result, in the vertical duct 1 that connects the central road R of each floor F, a temperature difference occurs such that the air temperature on each floor F1 to F3 side on the lower floor side is higher than that on the uppermost floor F4 side. Thus, an upward flow called a so-called chimney effect is generated by this temperature difference.
Even in the case where such a temperature difference does not occur, the air in the culvert duct 1 is used by utilizing the relatively strong horizontal ventilation power that is stably obtained in the central road R4 of the uppermost floor F4. If attracted to the outside from the opening 1b on the upper end side, a pressure difference in which the pressure in the vicinity of the opening 1b on the upper end side becomes smaller than that on the lower side in the vertical duct 1 is generated. Will occur.

  When an upward flow is generated in the soot duct 1 in this way, a part of the air in the central road R in each floor F1 to F3 on the lower floor side flows into the soot duct 1 through the opening 1a and then the uppermost floor F4. It rises to the side, is introduced into the central lane R4 of the uppermost floor F4 through the opening 1b, and is discharged outdoors together with the horizontal ventilation of the central lane R4. In this way, in the central roads R1 to R3 of the floors F1 to F3 on the lower floor side, exhaust is performed through the culvert duct 1 and the ventilation is strengthened, so the blowing power of the auxiliary blowing means 2 for supplementing the horizontal ventilation Even if it is made small, the deterioration of the air environment due to insufficient ventilation with respect to the necessary ventilation amount will be eliminated.

  Further, as shown in FIG. 1 and FIG. 2, since the culvert ducts 1 are distributed at a plurality of locations on both sides of the central lane R, the central lanes R1 to R3 in the floors F1 to F3 on the lower floor side are arranged. A part of the air is exhausted through the soot duct 1 dispersedly arranged at the plurality of locations. As a result, the insufficient ventilation with respect to the necessary ventilation amount is eliminated at every corner of the central lanes R1 to R3.

In the central road R4 of the uppermost floor F4, as shown in FIG. 2 and FIG. 3, the opening 1b on the upper end side of the culvert duct 1 faces upward substantially orthogonal to the direction of horizontal ventilation of the central road R4. Due to the opening, the opening 1b on the upper end side has a relatively strong attraction force that attracts the air in the culvert duct 1 to the central lane R4 using the power of relatively strong horizontal ventilation. Arise. Thus, the upward flow in the culvert duct 1 is strengthened, and the air in the culvert duct 1 can be suitably discharged to the outside together with the horizontal draft of the central roadway R4.
On the other hand, in the central roads R1 to R3 of the floors F1 to F3 on the lower floor side, the opening 1a of the culvert duct 1 opens in a lateral direction substantially orthogonal to the horizontal ventilation direction of the central road R4. Therefore, an attractive force using the power of horizontal ventilation is generated in the opening 1a.

  In general, the closer to the uppermost floor F4, the larger the flow velocity of the horizontal draft due to the natural wind, so the attractive force applied to the openings 1a and 1b of the vertical duct 1 of each floor F is the upper floor F4. It becomes the largest in the opening 1b, and becomes smaller as it approaches the lowest floor F1 in the opening 1a provided below the opening 1b. That is, in the soot duct 1, a pressure gradient that becomes smaller as it goes upward is generated, and air is preferably increased by the pressure gradient.

Moreover, the opening 1b on the upper end side of the culvert duct 1 in the central road R4 of the uppermost floor F4 is installed near the ceiling where it is easy to receive the air from the first blower 2a and the second blower 2b. The opening 1a of the culvert duct 1 in the central roads R1 to R3 of the floors F1 to F3 on the lower floor side is installed in the vicinity of the floor surface where it is difficult to directly receive the air from the first fan 2a and the second fan 2b. ing. As a result, the pressure gradient can be further strengthened in the saddle duct 1 and the upward flow can be promoted.
In any opening 1a, 1b of the culvert duct 1, even when the direction of horizontal ventilation in the central lane R is reversed, the opening 1a, 1b is always substantially orthogonal to the direction of horizontal ventilation. An attractive force utilizing the power of horizontal ventilation can always be generated in 1a and 1b.

[Another embodiment]
(1) In the above embodiment, the ventilation of the warehouse space W is configured as independent from the ventilation by the horizontal ventilation of the central road R, but may be configured by combining these ventilations.
For example, in the ventilation system constructed in the logistics facility 200 shown in FIG. 5, the air supply port 21 is provided in the wall portion on the opposite side of the central lane R of the warehouse space W, while the truck berth of the warehouse space W is provided. An exhaust port 23 is provided between B and the central road R. Then, by operating the blower 22 provided in the warehouse space W, outside air is taken into the warehouse space W through the air supply port 21, and the air passing through the warehouse space W is exhausted, and the air is exhausted through the exhaust port 23. The warehouse space W is ventilated in a form that is discharged to the roadway R. And the exhaust_gas | exhaustion discharged | emitted from the warehouse space W to the center lane R is discharged | emitted outdoors with the horizontal ventilation of the center lane R. FIG. In FIG. 5, the warehouse space W is ventilated by the blowing power of the blower 22 provided in the warehouse space W. However, the ventilation space provided in the supply port 21 and the exhaust port 23 are provided. You may comprise so that the warehouse space W may be ventilated with the ventilation power of an exhaust fan.
In this way, by combining the ventilation of the warehouse space W with the ventilation by horizontal ventilation of the central road R, it is possible to appropriately ventilate the entire distribution facility 200 while improving energy saving.

(2) In the embodiment described above, the opening 1b on the upper end side of the eaves duct 1 is opened in the central road R4 of the uppermost floor F4 and is not directly opened outdoors. You may comprise so that the upper end of may be extended upward and the opening part of the upper end side may be open | released outdoors. In this case, the air in the central road R of each floor F flows into the fence duct 1 and rises, and the raised air is discharged outdoors through the opening on the upper end side.

(3) In the above embodiment, the saddle ducts 1 are distributed and arranged at a plurality of locations in the horizontal direction on the central road R. However, the number and installation locations of the saddle ducts 1 can be appropriately changed. You may comprise so that the coffin duct 1 may be installed.

(4) In the above-described embodiment, the openings 1a and 1b of the culvert duct 1 are formed so as to open in a direction substantially perpendicular to the horizontal ventilation direction of the central road R, thereby opening the openings 1a and 1b. Although it has been configured to generate an attractive force to strengthen the upward flow in the soot duct 1, the chimney effect utilizing the temperature difference of the air without forming these openings 1a and 1b as an attractive force. It may be configured to generate an upward flow in the saddle duct 1 alone.

(5) In the above embodiment, the ventilation section is installed over the central roads R1 to R4 of all the floors F1 to F4 from the lowest floor F1 to the uppermost floor F4, and all floors F1 to F4 Although it was comprised with the culvert duct 1 which has the opening parts 1a and 1b in the center road R1-R4, you may comprise as what was constructed over the central road of some some floors. In this case, the ventilation section spans a central road on a specific lower floor (for example, the lowermost floor) that is prone to insufficient ventilation and a central road on a specific upper floor (for example, the uppermost floor) that is unlikely to cause insufficient ventilation. It is constructed so as to have an opening in the central roadway of these specific floors, and it is possible to suppress insufficient ventilation of the lower floors due to the upward flow in the ventilation section. In addition, when distributing and arranging a plurality of ventilating parts in the horizontal direction, for example, in each ventilating part, the upper end opening is opened in the central road on the uppermost floor, and the opening on the lower floor side May be configured so as to open to different central lanes of lower floors.

(6) In the above-described embodiment, the example in which the ventilation system according to the present invention is applied to the distribution facilities 100 and 200 including the central road R having the warehouse space W on both sides as the horizontal ventilation space has been described. It can also be applied to a logistics facility equipped with a roadway having a warehouse space as a horizontal ventilation space, and further has a plurality of open portions that are open to the outside, through which the outside air flows in the horizontal direction. As long as it has a horizontal ventilation space that allows ventilation, it may be applied to buildings other than logistics facilities.

1 Reed duct (reed section)
1a Opening 1b Opening (Upper Opening)
2 Auxiliary air blowing means 15 Air blowing control means 100, 200 Distribution facility F, F1-F4 Floor O, O1-O4 Opening part R, R1-R4 Central roadway (horizontal ventilation space)

Claims (5)

In a building having a plurality of open portions that are open to the outside and having horizontal ventilation spaces on a plurality of floors through which the outside air can flow in the horizontal direction through the plurality of open portions,
A ventilation system provided with auxiliary ventilation means capable of assisting horizontal ventilation along the horizontal direction in the horizontal ventilation space in the horizontal ventilation space of each floor,
A ventilation system provided with a draft ventilation section that spans a horizontal ventilation space of a plurality of floors and has an opening that opens into the horizontal ventilation space of a plurality of floors.   The ventilation system according to claim 1, wherein an upper end opening of the draft ventilation section is provided as an opening that opens into a horizontal ventilation space on an upper floor.   The ventilation system according to claim 1 or 2, wherein the ventilation section is distributed and arranged at a plurality of locations in the horizontal direction in the horizontal ventilation space. The auxiliary air blowing means is configured to be able to adjust the air blowing state,
The ventilation system of any one of Claims 1-3 provided with the ventilation control means which controls the ventilation state of the said auxiliary ventilation means according to the natural ventilation state of the horizontal ventilation by the natural wind in the said horizontal ventilation space.   The ventilation system of any one of Claims 1-4 with which the opening part of each floor which the said ventilation part has is opened in the direction substantially orthogonal to the direction of the horizontal ventilation of the said horizontal ventilation space.

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