JP2012192943A - Air-conditioning auxiliary system for container and container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-conditioning auxiliary system for a container capable of uniformly adjusting air in the container, and also to provide a container including the air-conditioning auxiliary system.SOLUTION: Negative pressure is generated in a box body 5 by actuation of an electric fan 7, and this allows air in the container 1 to be taken into the box body 5 through an air intake hole 13, and further the air is cooled by contact with dry ice 14. The cooled air is sent out toward the ceiling 6 of the container 1 by the electric fan 11, the air that is sent out is drawn to the electric fan 7 mounted on the ceiling 6 of the container 1 and is sent out to a space 23 between the ceiling 6 of the container 1 and a load 3 along the ceiling 6 of the container 1. This allows air in the container to be uniformly cooled (adjusted).

Description

  The present invention relates to a container air conditioning assistance system and a container including the air conditioning assistance system.

  It is important to keep the temperature in the container constant in order to ensure the quality of the load (load) being transported in the container. For example, in the invention described in Patent Document 1, a sealed outer box having high heat insulation and provided with an air inlet and an air outlet, and an inner space of the outer box are provided with a gap. Inner box with cooling fins with high thermal conductivity, dry ice contained in the inner box, and carbon dioxide emission to discharge carbon dioxide generated in the inner box to a place harmless to the human body An air flow path for flowing the air that has flowed into the inner space of the outer box through the air inlet into the air outlet while being in contact with the inner box, and the air that has flowed out of the air outlet A cold-air refrigerator provided with an electric motor-driven fan that blows out the air in a predetermined direction is disclosed. Patent Document 1 discloses an experimental result indicating that when the cold air refrigerator is used for a vehicle container, the inside of the container is maintained at a low temperature.

  However, the above experimental results were carried out for an empty container, that is, a container in which no load is loaded, and the conditions are different from those of the container loaded with the load. So the experimental results are different. In other words, in a situation where the container is fully loaded and only a slight gap (for example, about 300 mm) is left between the load and the ceiling of the container, the cold air refrigerator described in Patent Document 1 is placed on the floor at the rear of the container. When installed and tested, the load becomes an obstacle, and air convection cannot be generated in the container as in an empty container. Under such conditions, temperature unevenness occurs in the container.

Utility Model Registration No. 3134526

  Therefore, the present invention has been made in view of the above circumstances, and includes a container air-conditioning auxiliary system capable of uniformly adjusting the air in the container without being affected by the loading situation, and the air-conditioning auxiliary system. The challenge was to provide containers.

  In order to solve the above-described problems, an air conditioning auxiliary system for a container according to the present invention includes an air intake port that takes in air in a container, and a blow-out fan device that blows air taken from the air intake port upward. A box body that is detachably installed in the container; and a circulation fan device that is provided on a ceiling of the container and that circulates in the container by attracting air blown from an outlet of the box body In the box body, an accommodation item having a function of adjusting the air taken into the box body from the air inlet according to the purpose of air conditioning in the container is accommodated.

  In order to solve the above problems, a container of the present invention has an air intake port for taking in air in the container, and a blower fan device for blowing out the air taken in from the air intake port upward, A box body that is detachably installed in the container, and a circulation fan device that is provided on the ceiling of the container and that circulates in the container by attracting air blown from the outlet of the box body, The box body includes a container air-conditioning auxiliary system in which a container having a function of adjusting the air taken into the box body from the air intake according to the purpose of air-conditioning in the container is accommodated. And

(Aspect of the Invention)
In the following, aspects of the invention that is recognized as being capable of being claimed in the present application (hereinafter referred to as claimable invention) will be exemplified, and each exemplified aspect will be described. Here, as in the claims, each aspect is divided into paragraphs, numbers are assigned to the respective paragraphs, and the descriptions of other paragraphs are cited as necessary. This is for the purpose of facilitating the understanding of the claimable invention, and is not intended to limit the combination of the constituent elements constituting the claimable invention to those described in the following sections. In other words, the claimable invention should be construed in consideration of the description accompanying each section, the description of the embodiment, etc., and as long as the interpretation is followed, another aspect is added to the aspect of each section. Moreover, the aspect which deleted the component from the aspect of each term can also be one aspect of the claimable invention.
In the following items, each of the items (1), (3), (6), (7), and (10) corresponds to each of claims 1 to 5 described in the claims.

(1) a box body that has an air intake port for taking in air in the container and a blowing fan device that blows out air taken in from the air intake port upward, and is detachably installed in the container; A circulation fan device that is provided on the ceiling of the container and that circulates in the container by attracting air blown from the outlet of the box body. The box body is introduced into the box body from the air intake port. A container air-conditioning auxiliary system characterized in that a container having a function of adjusting air according to the purpose of air-conditioning in the container is accommodated.
According to the air conditioning auxiliary system for containers described in this section, the air in the container is taken into the box body from the air intake, and then contacted with the contents to be adjusted (processed) according to the purpose of air conditioning. In other words, the container having a function corresponding to the purpose of air conditioning acts (for example, cooling) on the air taken into the box from the air intake according to the purpose of air conditioning. The conditioned air is sent out of the box body upward by the blowing fan device, and is further attracted to the circulation fan device attached to the container ceiling, along the container ceiling and the load ( Sent to the space between the load). The air sent to this space flows along the load, and is eventually taken into the box body from the air intake port of the box body. In this way, the air in the container can be adjusted sequentially.
In the embodiment of this section, for example, a cooler box that is easy to carry can be used as the box body. In this case, an electric fan as a blowing fan device and an air intake port having a filter can be provided side by side on the lid of the box body. In the aspect of this section, for example, after loading the cargo into the container of the towing vehicle (vehicle), the box body is placed in the vicinity of the door of the container. In this case, it is desirable to attach the circulation fan device above the box body and to send the air attracted by the circulation fan device forward (toward the front of the vehicle). The box body can be fixed to the groove on the floor of the container using a belt or the like.

(2) The container air-conditioning auxiliary system according to (1), wherein the circulation fan device is a panel-type electric fan and is attached to the ceiling of the container via a torque hinge.
According to the container air-conditioning auxiliary system described in this section, the circulation fan device can be stored in the ceiling of the folding container as necessary, and is circulated by contact with the load at the time of loading / unloading the load. Damage to the fan device can be prevented.
In the aspect of this section, the circulation fan device can be relocated as appropriate according to the loading state of the load. Further, the circulation fan device includes a handle, and can be easily operated (folded or pulled out) by hooking a hook attached to the tip of the rod.

(3) The container air conditioning auxiliary system according to (1) or (2), wherein the box body includes operation selection means for selecting continuous operation and intermittent operation of the system.
According to the container air conditioning assistance system described in this section, for example, when power is not supplied from the battery of the towing vehicle, that is, when the system is uniquely equipped with a power source such as a battery, intermittent operation is performed by the operation selection unit. By selecting, the operation duration in which the system operates effectively can be extended. According to the aspect of this section, since the operation duration in the continuous operation of the system and the operation duration in the intermittent operation can be roughly estimated, it is possible to appropriately select the continuous operation and the intermittent operation according to the transportation schedule. it can. For example, the state of the air in the container can be monitored by a sensor (for example, a temperature sensor) according to the purpose, and the system can be configured to switch the system on / off according to the detection result of the sensor. In this case, it is extremely difficult to estimate the operation duration of the system, that is, the power supply duration of the power supply. Depending on the operation status, the power supply of the power supply is cut off at an early stage during transportation, and the system functions. There is a risk that it will not. In the aspect of this section, such a situation can be avoided.

(4) The operation selection means includes a changeover switch that switches between continuous operation / stop / intermittent operation of the blowing fan device, and a changeover switch that switches between continuous operation / stop / intermittent operation of the circulation fan device. (3) The air conditioning auxiliary system for containers according to (3), which is arranged on an operation panel attached to the box body.
According to the container air conditioning assistance system described in this section, for example, the container structure can be simplified as compared with the case where each changeover switch is arranged on the inner wall of the container. In addition to the changeover switches, a main switch for turning on / off the system can be arranged on the operation panel.

(5) The container air conditioning auxiliary system according to (1) to (4), wherein the box body includes a power supply unit.
According to the container air conditioning assistance system described in this section, the container structure can be simplified as compared with the case where the power supply unit is attached to the container.
In the aspect of this section, the power supply unit can be configured to receive power supply of DC 24V from the battery of the towing vehicle, for example. Further, the power supply unit can be configured to receive AC 100V power supplied from an electric power company. Furthermore, the power supply unit can be configured to receive power supply from a battery cell constituted by a plurality of dry batteries. In this case, the battery cell is accommodated in the housing of the power supply unit. And a power supply unit can be comprised so that these electric power supply sources can be selected suitably. For example, the rated voltage can be set to 24 V, and the power supply source can be selected from the battery and battery cell of the tow vehicle. In this case, a battery cell may be configured by connecting 16 DC1.5V dry batteries in series. In addition, it can also comprise so that a 1.2V secondary battery may be used.

(6) The container air conditioning auxiliary system according to any one of (1) to (5), wherein the box body is housed in a concave box housing section provided on the floor of the container.
According to the container air conditioning assistance system described in this section, it is possible to more effectively use the loading space in the container. Moreover, it becomes possible to carry in / out a load in the state which installed the box body in the container, and can improve work efficiency.

(7) The container air-conditioning auxiliary system according to any one of (1) to (6), wherein the stored item is a heat storage agent.
According to the air conditioning auxiliary system for containers described in this section, for example, when this system is adopted in a refrigerated container, dry ice (contained material) is accommodated as a heat storage agent (cold storage agent) having a cooling function in the box body. Thus, the container refrigeration device can be assisted. Here, if the container is a leafer container (a refrigerated container with an engine), for example, in a tunnel with a long distance, such as a Seikan tunnel, the engine of the leafa container must be stopped for disaster prevention. In the case of fresh food, there was a concern about the drop in the quality of the load while passing through the tunnel, but this system can prevent the drop in the quality of the load while passing through the tunnel by preventing the temperature inside the container from rising. .
In the aspect of this section, when the heat storage agent (contained material) is used as a cold storage agent (cold insulation agent), for example, water frozen in a plastic bottle can be used in addition to dry ice. Moreover, this system can be utilized for the assistance of the heating apparatus in a thermal container by making a thermal storage agent into a heat retention agent (heating element).

(8) The container air conditioning auxiliary system according to (7), wherein a precooling fan device is provided on the floor of the container.
According to the container air conditioning assistance system described in this section, the refrigerated container can be pre-cooled.
In the aspect of this section, the power supply source of the pre-cooling fan device can be the same as that of the blowing fan device and the circulation fan device. For example, the power supply source of DC 24V is independently supplied from the battery of the towing vehicle. It can also be configured as follows. The pre-cooling fan device is arranged so that the inside of the container is effectively pre-cooled.

(9) The container air-conditioning auxiliary system according to any one of (1) to (6), wherein the stored item is a deodorizer.
According to the container air conditioning assistance system described in this section, the air in the container can be deodorized using this system. For example, in a container that has just been manufactured, some containers have a specific odor (such as an odor emitted from a plywood board), and depending on the load, there is a problem in quality when the odor moves. In the aspect of this section, a deodorizing filter having a deodorizing function is accommodated in the box body, and by removing the problematic odor, it is possible to prevent the odor from being transferred to the load and to ensure the quality of the load. .

(10) A container comprising the container air conditioning assistance system according to any one of (1) to (9) above.
According to the container described in this section, the environment (air state) in the container can be adjusted more efficiently and uniformly (for example, temperature).

  ADVANTAGE OF THE INVENTION According to this invention, the container provided with the air conditioning assistance system for containers which can adjust the air in a container uniformly, and this air conditioning assistance system can be provided, without being influenced by the loading condition.

It is a figure which shows schematic structure of the refrigerated container which employ | adopted the air-conditioning assistance system for containers of this embodiment, Comprising: It is a figure which shows the state by which the door of the container was opened especially. It is a general view of the box body containing the power supply unit of the container air-conditioning auxiliary system of this embodiment. In FIG. 2, it is a figure which shows the state by which the cover body of the box body was opened. In FIG. 3, it is a figure which shows the state in which the dry ice was accommodated in the box body. In FIG. 4, it is a figure which shows the state in which the plastic bottle containing ice was accommodated in the box body instead of dry ice. It is a figure which shows the battery cell accommodated in the power supply unit. It is a figure which shows the operation panel provided in the power supply unit.

An embodiment of the present invention will be described with reference to the accompanying drawings. The container air conditioning assistance system according to the present embodiment is a system for assisting a refrigeration apparatus mounted in a refrigerated container to reduce a temperature rise in the container, and its schematic configuration is shown in FIG.
FIG. 1 shows a state in which a door 1 of a container 1 adopting this system is opened, and a load 3 (load) having a gap of about 300 mm between the container 1 and the ceiling is loaded in the container 1. Yes. As shown in this figure, this system includes two box bodies 5 detachably installed on the floor 4 of the container 1 and two electric fans 7 (removably attached to the ceiling 6 of the container 1). Circulation fan device).

  The electric fan 7 (circulation fan device) is a panel type electric fan driven by DC 24V, and is attached to the ceiling 6 of the container 1 via a torque hinge (not shown). Thus, the electric fan 7 is folded at the time of loading / unloading the load 3 and stored in the ceiling 6 of the container 1, thereby preventing damage due to contact with the load 3. The electric fan 7 can be moved together with the torque hinge according to the loading conditions. In addition, the electric fan 7 is provided with a handle (not shown). Even if the ceiling 6 is a relatively high container 1 by hooking a hook attached to the tip of a rod having a predetermined length on the handle, The angle adjustment and storage operation of the electric fan 7 (torque hinge) can be easily performed.

  As shown in FIG. 2 and FIG. 3, the box body 5 is a diverted commercially available cooler box, and has a lid body 9 that can be opened and closed by a pair of hinges 8. A foldable handle 10 is provided for carrying. The lid 9 includes an electric fan 11 (a blowing fan device) on one side of the handle 10 (right side in FIGS. 2 and 3), and the other side of the handle 10 (left side in FIGS. 2 and 3). Is provided with an air inlet 13 having a filter 12. The electric fan 11 is a panel type electric fan driven by DC24V, like the electric fan 7 (circulation fan device).

  As shown in FIG. 4, an appropriate amount of dry ice 14 (heat storage agent) is accommodated in the box body 5 as an accommodation. In this state, when the lid body 9 is closed and the electric fan 11 (fan device for blowout) is operated, negative pressure is generated inside the box body 5, and the air in the container 1 flows from the air intake 13 into the box body 5. Be incorporated into. The air taken into the box body 5 is cooled by contact with the dry ice 14 and then sent upward to the outside (inside the container 1) by the electric fan 11. As long as the heat storage agent accommodated in the box body 5 has a function of cooling the air taken into the box body 5, as shown in FIG. It is possible to freeze the water put in the container.

  As shown in FIG. 6, the present system includes a power supply unit 16 as a power supply source for supplying DC 24V power to the electric fan 7 (circulation fan device) and the electric fan 11 (blowout fan device). Have. The power supply unit 16 includes a stainless steel casing, and a DC24V battery cell 17 configured by connecting 16 single DC1.5V batteries in series is accommodated in the casing. The power supply unit 16 is detachably attached to one side surface (the right side surface in FIGS. 2 and 3) of the box body 5, and a handle used when the power supply unit 16 is carried alone on the top of the housing. 18 is provided. A person skilled in the art can easily configure the power supply unit 16 of the present system so that the power supply from the battery cell 17 and the DC24V power supply from the battery of the tow vehicle can be appropriately selected. Will.

  As shown in FIG. 7, an operation panel 19 is provided on the power supply unit 16. The operation panel 19 includes a ceiling fan changeover switch 20 (operation selection means) for switching between continuous operation / stop / intermittent operation of the electric fan 7 (circulation fan device) and continuous operation of the electric fan 11 (fan device for blowout). A BOX fan changeover switch 21 (operation selection means) that switches between / stop / intermittent operation and a main switch 22 that switches on / off of this system are arranged. Note that the operation interval during intermittent operation of the electric fans 7 and 11 can be arbitrarily adjusted by setting each timer (not shown) provided in the casing of the power supply unit 16.

Next, the operation of this embodiment will be described.
First, the load 3 (load) is carried into the container 1 in a state where each electric fan 7 (circulation fan device) is folded and stored in the ceiling 6 of the container 1 (horizontal state). After loading the load 3, the angle of each electric fan 7 is adjusted. Next, each box body 5 containing the dry ice 14 (container, see FIG. 4) is fixed to the floor 4 of the container 1. Each box body 5 is fixed in the vicinity of the door 2 using a belt (not shown), spaced in the width direction of the container 1 (left-right direction in FIG. 1), and the electric fan 11 (blowout) Fan device) is fixed so as to be arranged on the center side in the width direction of the container 1. Moreover, each electric fan 7 and the power supply unit 16 are connected using a connector etc.

  The driver sets the operation mode of the electric fan 7 (circulation fan device) and the electric fan 11 (blowout fan device) to the changeover switches 20 and 21 in consideration of the transportation schedule, the outside air temperature, the loading state of the load 3, and the like. When switching is performed by the operation of (operation selection means) and intermittent operation is selected, the operation interval is adjusted as necessary. Next, the driver operates the main switch 22 to start operation of the system, that is, after operating the electric fans 7 and 11, the driver closes the door 2 of the container 1. Due to the operation of the electric fan 11, a negative pressure is generated in the box body 5, whereby the air in the container 1 is taken into the box body 5 from the air intake 13 and then contacted with the dry ice 14. To be cooled.

  The cooled air is sent out of the box body 5 upward by the electric fan 11 (fan device for blowing out), that is, toward the ceiling 6 of the container 1. Further, the cooled and sent air is attracted to an electric fan 7 (circulation fan device) attached to the ceiling 6 of the container 1, and is further loaded along the ceiling 6 of the container 1 with the ceiling 6 of the container 1. 3 is sent to the space 23. The sent air flows along the surface of the load 3 and is taken into the box body 5 again from the air intake port 13 of the box body 5 before long.

This embodiment has the following effects.
According to the present embodiment, an effective air flow is formed in the container 1 toward cooling (air conditioning) of the load 3, and temperature unevenness (cooling unevenness) in the container 1 can be prevented. Thereby, the quality of the load 3 is securable.
Moreover, since the commercially available cooler box was diverted to the box body 5, this system can be manufactured cheaply.
Further, the operation modes of the electric fan 7 (circulation fan device) and the electric fan 11 (blowout fan device) are switched to continuous operation / stop / intermittent operation by operating the changeover switches 20 and 21 (operation selection means). When the system has its own power source (battery cell 17) as in the present embodiment, that is, when the external power supply cannot be received, the intermittent operation is selected. The driving duration can be extended. In this system, since the operation duration of the system can be roughly estimated, continuous operation and intermittent operation can be appropriately selected according to the transportation schedule. For example, in a system configured to monitor the temperature of air in the container 1 with a temperature sensor and switch the system on / off according to the detection result of the temperature sensor, it is extremely difficult to estimate the operation duration of the system. For this reason, there is a possibility that the power supply of the power supply is interrupted at an unexpectedly early stage during transportation, and the system may not function. However, this system can avoid such a situation.
Further, since the electric fan 7 (circulation fan device) is attached to the ceiling 6 of the container 1 via the torque hinge, the electric fan 7 is folded and stored in the ceiling 6 of the container 1 when the load 3 is loaded / unloaded. The electric fan 7 can be prevented from being damaged due to contact with the load 3.

In addition, embodiment is not limited above, For example, it can comprise as follows.
In the present embodiment, a commercially available cooler box is used as the box body 5, but a container having a heat insulating function can be manufactured and used as the box body 5. In addition, when the heat insulating function is not required, another appropriate container may be used as the box body 5 without using the cooler box.
In this embodiment, the two box bodies 5 are installed on the floor 4 of the container 1 and two electric fans 7 (circulation fan devices) are attached to configure the present system. Can be set as appropriate according to the type of the load, the loading state of the load 3, and the like.
In the present embodiment, the box body 5 is fixed to the floor portion 4 of the container 1 with a belt, but the box body 5 is housed in a concave box housing portion (underfloor housing portion) provided on the floor portion 4 of the container 1. be able to. In this case, the loading space in the container 1 can be used more effectively. Moreover, since it becomes possible to carry in / out the load 3 in the state which installed the box body 5 in the container 1, work efficiency can be improved.
In the present embodiment, the dry ice 14 (heat storage agent) is accommodated in the box body 5 as the accommodated item, but other accommodated items can be accommodated depending on the purpose of air conditioning. For example, when the purpose of air conditioning is deodorization in the container 1, a deodorizing agent is accommodated in the box body 5. Thereby, the air in the container 1 can be deodorized effectively.

DESCRIPTION OF SYMBOLS 1 Container, 5 box body, 6 Ceiling, 7 Electric fan (circulation fan apparatus), 11 Electric fan (fan apparatus for blowing), 13 Air intake, 14 Dry ice (containment, heat storage agent)

Claims (5)

A box body that has an air intake port for taking in air in the container and a blowing fan device that blows out the air taken in from the air intake port upward, and is detachably installed in the container;
A circulation fan device that is provided on the ceiling of the container and attracts the air blown out from the outlet of the box body to circulate in the container;
Including
A container air-conditioning auxiliary system, wherein the box body contains a container having a function of adjusting the air taken into the box body from the air intake according to the purpose of air-conditioning in the container. . The said box body is equipped with the operation selection means which selects the continuous operation and intermittent operation of the said system, The air-conditioning assistance system for containers of Claim 1 characterized by the above-mentioned. The said box body is accommodated in the concave box accommodating part provided in the floor part of the said container, The air-conditioning auxiliary system for containers of Claim 1 or 2 characterized by the above-mentioned. The container air-conditioning auxiliary system according to claim 1, wherein the container is a heat storage agent. A box body that has an air intake port for taking in air in the container, and a blowing fan device that blows out the air taken in from the air intake port upward; A circulation fan device that attracts air blown from the outlet of the box body and circulates the air in the container, and the box body includes an air inlet through the box body. A container, comprising: a container air-conditioning auxiliary system in which a stored item having a function of adjusting the air taken into the container according to an air-conditioning purpose in the container is accommodated.

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