JP2024043744A - Warehouse dew condensation prevention structure - Google Patents

Abstract

To provide a warehouse dew condensation prevention structure that reduces humidity in indoor spaces with a simple structure.SOLUTION: A warehouse dew condensation prevention structure (1) of the present invention has an opening part (11) that serves as an entrance-exit for vehicles, and stores articles in an internal article storage area. Furthermore, there are: a truck berth (12) that serves as vehicle parking space and a platform (13) adjacent to the truck berth and configured for loading/unloading cargoes provided between the opening part and the article storage area; and an air blower (14) configured to cause outside air entering the warehouse from the area above the opening part to flow toward a floor surface (12a) of the truck berth or a vertical wall surface (13a) of the platform.SELECTED DRAWING: Figure 2

Description

The present invention relates to warehouses, and in particular to a condensation prevention structure for warehouses that store goods.

Japanese Unexamined Patent Publication No. 2019-19615 (Patent Document 1) discloses a warehouse equipped with a truck berth that serves as a parking space for vehicles coming and going to a distribution warehouse, and a platform that facilitates loading and unloading of cargo from vehicles. . This type of distribution warehouse generally does not have air conditioning equipment or dehumidifiers, and goods are stored at room temperature.

Japanese Patent Application Publication No. 2019-19615

In the warehouse of Patent Document 1, vehicles frequently enter and leave the warehouse through the entrance, so the entrance is always open. When the doorway is open, outside air flows into the warehouse, but if the outside air containing moisture flows into the warehouse at this time, there is a risk that condensation may occur inside the warehouse or on the stored items.

One solution to this problem is to install air curtains near the entrance to the warehouse, but because air curtains blow air containing outside air onto the floor from above the entrance, some of the outside air that hits the floor will flow into the building, resulting in an increase in humidity inside the building.

The present invention was made to solve the above problems, and its purpose is to provide a simple structure for preventing condensation in warehouses that can reduce humidity in indoor spaces.

A condensation prevention structure for a warehouse according to one aspect of the present invention has an opening that serves as an entrance and exit for vehicles, and stores goods in an internal goods storage area. Between the opening and the goods storage area, a truck berth that serves as a parking space for vehicles and a platform adjacent to the truck berth for loading and unloading goods are provided, and a blower is provided to direct the flow of outside air entering the warehouse from the area above the opening toward the floor surface of the truck berth or the vertical wall surface of the platform.

Preferably, the blower is arranged in a region between the opening and the vertical wall surface of the platform, and in a region located at or above the upper end height of the opening.

When a duct is provided with an outside air intake near the opening and an outside air exhaust near the platform, it is desirable for the blower to be configured to direct the air exhausted from the outside air exhaust of the duct toward the floor of the truck berth or the vertical wall of the platform.

If the warehouse further comprises a hanging wall attached to the ceiling in the area between the opening and the vertical wall surface of the platform, it is preferable that the blower be positioned between the hanging wall and the opening.

A condensation prevention structure for a warehouse according to another aspect of the present invention has an opening that serves as an entrance and exit for vehicles, and stores goods in an internal goods storage area. A truck berth that serves as a parking space for vehicles is provided between the opening and the goods storage area, a hanging wall is provided on the ceiling located above the truck berth, and a dehumidifier is provided that enters the warehouse from the area above the opening, dehumidifies the humid outside air that has accumulated in the upper space between the opening and the hanging wall, and sends the dehumidified air to the goods storage area.

In this case, the dehumidifier preferably includes a duct for sending the dehumidified air through the hanging wall to the article storage area.

The present invention makes it possible to reduce humidity in the indoor space of a warehouse with a simple structure.

FIG. 1 is a schematic diagram showing the ventilation structure in a typical room temperature warehouse. 1A to 1C are schematic diagrams showing a condensation prevention structure for a warehouse according to the present embodiment, where (a) shows embodiment 1, (b) shows embodiment 2, and (c) shows embodiment 3. FIG. 7 is a schematic diagram showing a dew condensation prevention structure in a warehouse according to the fourth embodiment.

The condensation prevention structure for a warehouse according to this embodiment will be described in detail with reference to the drawings. Note that the same or corresponding parts in the drawings will be given the same reference numerals and their description will not be repeated.

(Regarding the ventilation structure of a typical warehouse)
A ventilation structure 100 for a typical normal temperature warehouse 110 will be described with reference to Fig. 1. In the following description, with an opening 111 of the warehouse 110 as a reference point, the left side of the opening 111 on the paper surface is referred to as the outdoor direction, and the right side of the opening 111 on the paper surface is referred to as the indoor direction, both of which are indicated by arrow A1. The direction indicated by arrow A2 is referred to as the height direction of the warehouse 110. Note that Fig. 1 illustrates an area in the warehouse where luggage is loaded and unloaded, and does not illustrate an item storage area.

The warehouse 110 has an indoor space surrounded by an exterior wall 114, a ceiling 117, and a floor 116. At least one side of the exterior wall 114 has an opening 111 that serves as an entrance and exit for vehicles. The indoor space includes an item storage area where a large number of items unloaded from vehicles are stored at room temperature. Between the opening 111 and the item storage area, there is a truck berth 112 that serves as a parking space for vehicles, and a platform 113 adjacent to the truck berth 112 for loading and unloading luggage.

Here, the indoor space of the room-temperature warehouse 110, which has a large heat capacity, is not easily affected by the outside temperature (particularly in the central part far from the outer wall 114), so the temperature of the indoor space changes later than the outdoor temperature change. Therefore, during seasons such as early spring and the rainy season, the temperature inside the room is lower than the outside temperature. In this state, if the humidity in the cold indoor space increases, there is a risk of condensation and mold.

In the room-temperature warehouse 110 with such a temperature difference, relatively high temperature outdoor air (outside air) flows into the warehouse from the upper region 111a of the opening 111, as shown by arrows in FIG. "Temperature difference ventilation" occurs in which the indoor air flows out of the warehouse from the lower region 111b of the opening 111. Here, if the outside air contains more humidity than the indoor air, the humidity in the indoor space will increase.

The present invention focuses on the ventilation structure in a warehouse as described above, and specifically, in an environment where condensation occurs, that is, an environment where the outside air is hot and humid and the inside is cold, the present invention uses temperature difference ventilation to ventilate the openings. It is characterized by its countermeasures against outside air flowing in from the upper area.

(Regarding the first embodiment)
2(a), a description will be given of a condensation prevention structure 1 for a warehouse 10 according to the present embodiment 1. The warehouse 10 includes an opening 11 serving as an entrance and exit for vehicles, a truck berth 12 serving as a parking space for vehicles, a platform 13 adjacent to the truck berth 12 for loading and unloading cargo, and a blower 14.

The opening 11 only needs to be larger than the vehicle height (vehicle height), for example, 1700 mm or more. From the standpoint of hygiene and crime prevention, the opening 11 may have an openable and closable shutter.

The truck berth 12 is a space for parking vehicles such as trucks going in and out of the warehouse 10 and for loading and unloading cargo. An article storage area for storing cargo is provided on the indoor side of the truck berth 12.

The platform 13 is for facilitating loading and unloading of cargo on a vehicle, and the height of the vertical wall surface 13a of the platform is set to be approximately 700 mm to 1200 mm higher than the floor surface 12a of the truck berth. The warehouse 10 of this embodiment is a raised floor warehouse that is provided with a platform 13. Elevated floor warehouses can prevent dust, rainwater, etc. from entering the product storage area, and are therefore particularly suitable for sanitary products.

The blower 14 is installed to direct the flow of outside air entering the warehouse 10 from the upper region 11a of the opening 11 toward the floor surface 12a of the truck berth or the vertical wall surface 13a of the platform. The blower 14 in this embodiment is, for example, an air circulator, and may be fixed to the ceiling 17 or an outer wall of the warehouse 10, or may be installed on the floor surface 12a of the truck berth.

In this embodiment, the blower 14 is disposed in an area X between the opening 11 and the vertical wall surface 13a of the platform (hereinafter also referred to as the "depth dimension X of the truck berth"), and in an area Y that is at the same height as the upper end of the opening 11 or higher. Note that "at the same height as the upper end of the opening 11" means that the position of the upper end of the blower 14 is at the same height as the upper end of the opening 11. Also, the indoor end of the blower 14 is located on the outdoor side of the vertical wall surface 13a of the platform.

The blower 14 is installed so that the blowing direction can be changed as needed by the operator. The blower 14 blows the outside air that has flowed into the warehouse 10 toward the outdoors beyond the vertical wall surface 13a of the platform, i.e., toward the outdoors beyond the step on the floor surface 12a. This makes it possible to efficiently prevent outside air from flowing into the item storage area, and to prevent an increase in humidity in the item storage area.

Next, a description will be given of the airflow occurring within the warehouse 10 in this embodiment. In an environment where dew condensation is likely to occur, that is, when the indoor air is lower in temperature than the outside air, the temperature difference ventilation causes the low-temperature indoor air to flow out from the lower area 11b of the warehouse 10 to the outdoors, and the high-temperature outdoor air to the upper part of the warehouse 10. It flows into the room from the area 11a. The blower 14 of this embodiment draws the outside air that has flowed in and blows it toward the outdoor side from the vertical wall surface 13a of the platform. The outside air sent into the lower area of the warehouse 10 rides on the airflow of indoor air heading outdoors and is discharged outdoors. In this way, the outside air that has flowed in is circulated within the truck berth space and exhausted to the outside, thereby preventing high humidity air from flowing into the room.

(About Embodiment 2)
Referring to FIG. 2(b), a warehouse condensation prevention structure 1A according to the second embodiment will be described. The dew condensation prevention structure 1A of the second embodiment basically has the same configuration as the dew condensation prevention structure 1 of the first embodiment, but as shown in FIG. 2(b), mainly the blower 14A and the duct 15 is different.

The dew condensation prevention structure 1A of this embodiment has an outside air intake 151 near the opening 11, and a duct 15 having an outside air exhaust 152 near the platform 13. The "nearby" here refers to, for example, an area of about 20% of the depth dimension X of the truck berth from the opening 11 side toward the indoor side, and an area of about 20% of the depth dimension X of the truck berth from the vertical wall surface 13a of the platform toward the outdoor side.

The blower 14A is, for example, a sirocco fan, a propeller fan, or an air circulator. The blower 14A directs air discharged from the outside air outlet 152 of the duct 15 toward the floor surface 12a of the truck berth.

The dew condensation prevention structure 1A of this embodiment works particularly effectively the longer the area X between the opening 11 and the vertical wall surface 13a of the platform. The dew condensation prevention structure 1A efficiently collects the outside air flowing in from the opening 11 and blows it onto the floor surface 12a near the platform 13. As a result, the outside air blown onto the floor surface 12a cannot flow into the interior due to the vertical wall surface 13a of the platform, and is discharged to the outdoors by riding on the air current flowing out from the interior.

(Regarding the third embodiment)
With reference to Fig. 2(c), a description will be given of a dew condensation prevention structure 1B for a warehouse according to the present embodiment 3. The dew condensation prevention structure 1B of the present embodiment 3 basically has a similar configuration to the dew condensation prevention structure 1 of the present embodiment 1, but differs mainly in a blower 14B and a hanging wall 16, as shown in Fig. 2(c).

The condensation prevention structure 1B of this embodiment further includes a hanging wall 16 provided on the ceiling 17 of the warehouse 10 in the region X between the opening 11 and the vertical wall surface 13a of the platform. The location of the hanging wall 16 is not particularly limited as long as it is within the region X, but it is preferable that it is provided near the platform 13. The "nearby" here refers to, for example, about 20% of the depth dimension X of the truck berth from the vertical wall surface 13a of the platform toward the outdoors. As a result, a high-temperature and high-humidity outside air pool is formed in the upper space Y between the outer wall of the warehouse 10 and the hanging wall 16.

The blower 14B is, for example, a sirocco fan, a propeller fan, an air circulator, etc., and is arranged in the region _X1 between the hanging wall 16 and the opening 11. The blower 14B is preferably provided adjacent to the hanging wall 16, and directs the outside air pool toward the floor surface 12a of the truck berth. The blower 14B can be installed on the ceiling 17 or floor of the warehouse 10, or can be installed on the hanging wall 16. Note that "adjacent" as used herein refers to a state in which the wall 16 is in contact with the hanging wall 16 or is separated by the distance of the fixing fittings during installation.

The dew condensation prevention structure 1B of this embodiment efficiently collects outside air flowing in from the opening 11 into the upper space Y to form an outside air pool. By blowing the outside air accumulated in the upper space Y toward the floor surface 12a of the truck berth, the outside air blown onto the floor surface 12a cannot flow into the indoor side because of the vertical wall surface 13a of the platform, and is It is discharged outdoors by riding the air currents flowing out from the air.

(Regarding the fourth embodiment)
A dew condensation prevention structure 1C for a warehouse according to the present embodiment 4 will be described with reference to Fig. 3. The dew condensation prevention structure 1C of the present embodiment 4 basically has the same configuration as the dew condensation prevention structure 1B of the present embodiment 3, but differs mainly in that a dehumidifier 14C is provided instead of the blower 14B and that a duct 15C penetrating a hanging wall 16C is provided, as shown in Fig. 3.

The condensation prevention structure 1C of the fourth embodiment enters into the warehouse 10 from the hanging wall 16C provided on the ceiling 17 located above the truck berth 12 and the upper area 11a of the opening 11, and enters into the warehouse 10 from the opening 11. A dehumidifier 14C dehumidifies the high humidity outside air accumulated in the upper space Y between the hanging wall 16C and sends the dehumidified air to the article storage area, and a dehumidifier 14C sends the dehumidified air through the hanging wall 16C to the article storage area. and a duct 15C for sending the air to the air.

The hanging wall 16C is provided at any position on the ceiling 17 located above the truck berth 12, and forms a pool of high-temperature, high-humidity outside air that has flowed into the upper space Y. The hanging wall 16C may have a through hole through which the duct 15C passes. This allows the hanging wall 16C to prevent the outside air pool in the upper space Y from being attracted by the dehumidified air blown out of the duct and flowing into the indoor side.

The dehumidifier 14C can be of the compressor type, desiccant type, or hybrid type, depending on the application. It is preferable that the dehumidifier 14C is provided on the hanging wall 16C or the ceiling 17, and is provided adjacent to the hanging wall 16C. The dehumidifier 14C can dehumidify the moisture contained in the outside air that has flowed into the upper space Y, and send the dehumidified air to the item storage area via the duct 15C.

Duct 15C includes a dehumidified air intake 151C that connects to dehumidifier 14C, and a dehumidified air exhaust 152C that faces the item storage area. From the viewpoint of temperature difference ventilation, dehumidified air exhaust 152C is preferably provided in the space above the item storage area. This allows "high temperature, low humidity air" to flow in above the item storage area and "low temperature, low humidity air" to flow out from below, thereby enabling efficient ventilation within the warehouse.

The dew condensation prevention structure 1C of this embodiment utilizes temperature difference ventilation like the other embodiments. The dew condensation prevention structure 1C collects outside air flowing in from the opening 11 into the upper space Y to form an outside air pool, dehumidifies the formed outside air pool with a dehumidifier 14C, and sends it to the article storage area. In addition, the low-temperature air in the article storage area flows outside due to temperature difference ventilation. In this way, the dew condensation prevention structure 1C can maintain a low-humidity indoor environment while also alleviating the temperature difference between the inside and outside of the warehouse 10C, thereby creating an indoor environment in which dew condensation is less likely to occur.

In addition, the warehouse 10C in which the warehouse condensation prevention structure 1C of this embodiment is adopted does not utilize the platform step to control airflow, so it is not essential to have a platform.

The warehouse in this invention has been described as a room temperature warehouse, but the condensation prevention structures of the first to third embodiments in particular may be used in a refrigerated warehouse. Even in this case, temperature difference ventilation is used to prevent outside air from flowing into the warehouse. It is also possible to prevent the temperature inside the warehouse from rising due to outside air, which is expected to result in energy savings.

Note that in the present invention, a blower is used in Embodiments 1 to 3, and a dehumidifier is used in Embodiment 4, but in Embodiments 1 to 3, a dehumidifier may be used instead of the blower. You can also use it as This makes it possible to more effectively prevent dew condensation from occurring within the warehouse.

Although the embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to the illustrated embodiment. Various modifications and variations can be made to the illustrated embodiment within the same scope as the present invention or within an equivalent scope.

1 warehouse condensation prevention structure, 10 warehouse, 11 opening, 12 truck berth, 12a floor of truck berth, 13 platform, 13a vertical wall of platform, 14 blower, 15 duct, 16 hanging wall.

Claims (6)

A dew condensation prevention structure for a warehouse that has an opening that serves as an entrance and exit for vehicles and stores goods in an internal goods storage area,
A truck berth serving as a parking space for vehicles and a platform adjacent to the truck berth for loading and unloading cargo are provided between the opening and the article storage area,
A dew condensation prevention structure for a warehouse, comprising a blower that directs a flow of outside air entering the warehouse from an area above the opening toward a floor surface of the truck berth or a vertical wall surface of the platform. The blower is arranged in a region between the opening and the vertical wall surface of the platform, and in a region that is the same as or higher than the upper end height of the opening. Condensation prevention structure for warehouses. a duct having an outside air intake near the opening and an outside air exhaust near the platform;
The condensation prevention structure for a warehouse according to claim 2 , wherein the blower directs air discharged from an outside air exhaust port of the duct toward a floor surface of the truck berth or a vertical wall surface of the platform. further comprising a hanging wall provided on the ceiling of the warehouse in a region between the opening and the standing wall surface of the platform,
The dew condensation prevention structure for a warehouse according to claim 2, wherein the blower is disposed between the hanging wall and the opening. A dew condensation prevention structure for a warehouse that has an opening that serves as an entrance and exit for vehicles and stores goods in an internal goods storage area,
A truck berth serving as a parking space for vehicles is provided between the opening and the article storage area,
A hanging wall is provided on the ceiling located above the truck berth,
a dehumidifier that enters the warehouse from an area above the opening, dehumidifies high-humidity outside air accumulated in the space above the opening and the hanging wall, and sends the dehumidified air to the article storage area; The warehouse is equipped with a structure to prevent condensation. 6. The dew condensation prevention structure for a warehouse according to claim 5, wherein the dehumidifier includes a duct for sending dehumidified air to the article storage area through the hanging wall.

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