Moisture-control container having fire extinguishing function

The fire-resistant dehumidifying container addresses the challenge of fire detection and extinguishment in conventional containers by using a steel base, integrated sensors, and a pressure vessel to spray extinguishing gas, effectively suppressing fires and maintaining airtightness and humidity.

WO2026100780A1PCT designated stage Publication Date: 2026-05-15KDU CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
KDU CO LTD
Filing Date
2024-11-08
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Conventional containers struggle to effectively detect and extinguish fires due to their structure, which allows oxygen supply through wooden floors and vent holes, making it difficult to completely cut off oxygen and prevent fire progression, while also facing challenges in maintaining airtightness to manage internal pressure and humidity.

Method used

A fire-resistant dehumidifying container with a steel base, integrated fire detection sensors, and a pressure vessel containing liquid carbon dioxide or nitrogen, which sprays extinguishing gas through branch pipes and a control unit to suppress fires, along with a ventilation module to manage humidity and pressure.

Benefits of technology

The container efficiently detects and extinguishes fires in their early stages by blocking oxygen supply, maintaining airtightness, and managing pressure and humidity, thereby protecting cargo from fire damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a technology regarding a moisture-control container which includes a fire extinguishing function in preparation for a fire occurring inside the container, thereby protecting cargo inside the container from fire, wherein the container has a structure in which the bottom surface is formed of a steel base having a bent portion and is coupled to the side surface by welding, such that air inflow through the bottom surface is blocked. Specifically, a configuration for detecting and extinguishing a fire inside the container comprises: a pressure vessel (310) for accommodating liquid carbon dioxide (CO2) or liquid nitrogen (N2) therein; a fire detection sensor for detecting a fire inside the container; a fire suppression valve for opening an inlet of the pressure vessel when the fire detection sensor detects a fire; a first branch pipe (320) disposed at the upper side of the container, a second branch pipe (330) disposed at the side surface of the container, and a third branch pipe (340) disposed at the lower side of the container, wherein the first to third branch pipes are arranged to eject, into the container, gas vaporized and ejected from the pressure vessel; and a control unit for opening the fire suppression valve by receiving a fire occurrence signal from the fire detection sensor.
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Description

Fire-extinguishing dehumidifying container

[0001] The present invention relates to a fire-resistant dehumidifying container technology for protecting cargo inside a container from fire by providing a fire extinguishing function to prepare for fires occurring inside the container.

[0002] Generally, containers are used to transport various types of cargo. Large cargo that is difficult to accommodate inside a container, or cargo requiring refrigerated or frozen transport, is specially packaged, and numerous specialized containers have been developed and are in use for this purpose.

[0003] Containers are characterized by their ability to circulate around the world to carry various types of cargo, and fires caused by the types or characteristics of the cargo loaded into them often result in losses ranging from billions to tens of billions of won or more. In particular, fires caused by the chemical properties of the cargo or physical impact or contact with it not only damage the container itself but also bring safety risks and economic losses to the entire vessel carrying the container.

[0004] Due to the nature of containers, it is difficult to accurately determine what cargo is inside and for what reason a fire occurs. Therefore, there is a need for each individual container to independently detect and extinguish fires. Meanwhile, the three essential elements of fire are the ignition source, fuel, and oxygen. If any one of these elements is missing, it is difficult for a fire to occur. In the case of containerized cargo, as mentioned above, ignition occurs due to various causes, making it impossible to eliminate the ignition source. Furthermore, since the cargo itself acts as combustible fuel, the fuel cannot be removed. Consequently, removing only the oxygen prevents the fire from progressing.

[0005] Therefore, a fire occurring in a container can be extinguished by cutting off the oxygen supply source. However, conventional containers have wooden floors, and oxygen is supplied through the moisture contained in the wood. Furthermore, nails for cargo lashing are present on the wooden floor, and oxygen is supplied from the outside through the holes created by these nails. Moreover, conventional containers have nine small vent holes installed on the upper part of the left and right walls, each serving as an oxygen supply source.

[0006] With this type of container structure, it is not easy to completely cut off the oxygen supply. In other words, to block the oxygen supply, it would be advisable to use a structure with good airtightness instead of wood for the floor, or to eliminate vents on the side walls. However, the internal pressure of the container may rise due to day-night temperature fluctuations, or, depending on the cargo, due to gases released from the cargo. To prevent excessive pressure rise caused by this, there must be vents that allow for pressure release.

[0007] Looking at the prior art safety transport container (Registration No. 10-2561090), it describes a container that effectively suppresses the generation of moisture in the cargo transport space by using an internal power source (or battery) instead of an external power source to maintain a positive pressure above a certain level within the container's internal space, thereby preventing condensation on the loaded cargo as well as corrosion, contamination, and damage. The container in this invention is structured to maintain airtightness to make it difficult to supply oxygen, and the number of vents is minimized to just one. However, it does not address how to detect and extinguish a fire when one occurs.

[0008] The objective of the present invention is to provide a technology that detects a fire when it occurs inside a container and efficiently suppresses the fire in its early stages within the container itself.

[0009] The present invention is a technology that protects cargo inside a container from fire by providing a fire extinguishing function to prepare for fires occurring inside the container. The container has side walls and a top similar to conventional containers, and the bottom is formed of a steel base with a bent section and joined to the side by welding, having a structure that blocks air inflow through the bottom.

[0010] Specifically, the configuration for detecting and extinguishing a fire inside a container is characterized by including a pressure vessel (310) containing liquid carbon dioxide (CO2) or liquid nitrogen (N2) inside, a fire detection sensor for detecting a fire inside the container, a fire suppression valve that opens the inlet of the pressure vessel when the fire detection sensor detects a fire, a first branch pipe (320) located on the upper side of the container, a second branch pipe (330) located on the side of the container, and a third branch pipe (340) located on the lower side of the container, which are arranged to discharge gas vaporized and ejected from the pressure vessel into the container, and a control unit that receives a fire occurrence signal from the fire detection sensor and opens the fire suppression valve.

[0011] Here, the second branch pipe is preferably embedded and disposed within the corrugated groove formed on the side of the container, and the third branch pipe is preferably embedded and disposed within the corrugated fold portion of the steel base on the bottom of the container so as not to encroach upon the loading space of the cargo accommodated inside.

[0012] The above fire detection sensor may be a smoke detection sensor, a heat detection sensor, a flame detection sensor, or a gas detection sensor, and may also be a sensor having other fire detection functions.

[0013] The present invention may also be positioned outside the container to monitor the state inside the container, and the management server transmits and receives necessary information to and from the control unit through communication. Various commonly used communication means may be applied as means for communication.

[0014] After receiving a fire occurrence signal from the fire detection sensor, the management server can remotely open the fire suppression valve through the control unit. That is, opening the fire suppression valve of the pressure vessel to spray gas can be performed internally within the container or can be controlled remotely.

[0015] The above management server monitors and stores the temperature, humidity, and gas emission status inside the container in real time, allowing the location of the fire and the internal condition (temperature, humidity, gas emission, etc.) immediately before the fire occurs to be checked remotely in real time.

[0016] The pressure vessel is positioned vertically on the front interior of the container or horizontally on the top of the container, and the size and shape of the pressure vessel can vary as needed, and the number of vessels can be one or multiple, in an appropriate number.

[0017] In the event of a fire, the internal pressure of the container may rapidly increase; taking this into consideration, a safety valve may be further included to prevent damage caused by the increase in internal pressure of the container, and the control unit or management server may open the safety valve when it receives a fire occurrence signal from the fire detection sensor.

[0018] In addition, the container of the present invention is a container having a dehumidification function by further comprising a ventilation module that controls the humidity inside the container while communicating the air inside and outside.

[0019] The container according to the present invention is equipped with a function capable of detecting a fire inside the container and extinguishing it on its own, thereby enabling the effect of detecting the fire and efficiently suppressing it in the early stages when a fire occurs inside the container.

[0020] FIG. 1 is an overall view of a container according to the present invention, and

[0021] FIG. 2 is a longitudinal cross-sectional view of a container according to the present invention.

[0022] FIGS. 3 and FIGS. 4 conceptually show a container according to the present invention, and

[0023] Figure 5 illustrates the arrangement of branch pipes through which fire extinguishing gases are injected in a container according to the present invention.

[0024] FIG. 6 is an exploded view of a ventilation module of a container according to the present invention, and

[0025] FIG. 7 shows the ventilation module installed on the side wall of a container according to the present invention, and

[0026] FIG. 8 is a partial configuration of a ventilation module of a container according to the present invention.

[0027] Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings.

[0028] In assigning reference numerals to the components of each drawing, the same components are labeled with the same numeral whenever possible, even if they are shown in different drawings.

[0029] In addition, in the description of the embodiments, if it is determined that a specific description of related known configurations or functions would hinder understanding of the embodiments of the present invention, such description has been simplified or omitted. Furthermore, where it is stated that a component is “equipped” or “connected” to another component, it should be understood that while the component may be directly equipped or connected to the other component, another component may also be “equipped” or “connected” between each component.

[0030] The container according to the present invention uses steel members for the entire floor structure, rather than using conventional wood. Specifically, the bottom of the container according to the present invention is formed of a steel base structure having a bent shape, and since it is made entirely of a single steel plate, the inflow of external air through the floor is blocked, thereby providing an internal space with airtightness. Through this, moisture inflow caused by the inflow of external air is prevented, so that the humidity inside the container is maintained below a certain level. Although not illustrated, to seal the inside of the container, the rear door that operates to open and close the inside and outside of the container is equipped with a sealing member on the edge or an air curtain is used so that air inflow through the edge of the door is completely blocked when the door is closed.

[0031] In addition, to maintain pressure within the container, a separate passage for external air entering the container is formed. The invention is characterized by having a dehumidifying means for removing moisture contained in the external air entering through this passage, and thereby, the greatest feature of the invention is that the humidity inside the container can always be maintained at a level below a certain level without the need for a separate power supply.

[0032] Hereinafter, the container according to the present invention is referred to as a "dehumidifying anti-moisture container," which means a container having both a moisture-proof function and a dehumidifying function. Even when the container of the present invention is simply referred to as a "container" below, it is used to mean a "dehumidifying anti-moisture container."

[0033] FIG. 1 is an overall view of a container according to the present invention, and FIG. 2 is a cross-sectional view of a container according to the present invention, showing a structure in which the lower bottom is made of a steel base and the inside of the container can be sealed.

[0034] Referring to these drawings, the container (100) according to the present invention has a front (120), a top surface (140), and two sides (160) formed of metal plates, and the rear surface is formed to be openable and closable by a door (180). In addition, the bottom surface of the container is formed of a steel material and is formed as a steel base (hereinafter referred to as 'steel base (200)') having a bent portion to block air inflow through the inner bottom. The container of the present invention has a structure in which the entire structure is sealed because there is no passage for air to flow into the top surface, bottom surface, and side walls. In the drawings, 170 is a frame member located at the rear of the container body, which is the part of the container body facing when the door (180) is closed, and is a rectangular frame, which is referred to as the 'rear frame' for convenience in the following description.

[0035] The present invention ensures airtightness inside the container by having a container door structure that blocks the inflow of external air through the door rim when the door (180) is closed, thereby sealing the internal space of the container from the external air. To this end, a sealing member, such as a gasket, is placed on the rim of the door. Additionally, the steel base of the lower bottom of the container is a structure in which a corrugated steel plate of a certain width is welded from the side so that the internal space is completely sealed.

[0036] Referring to FIGS. 1 and 2, the metal plates forming the front (120), top (140), and both sides (160) of the internal space are each welded to the frame to be integrated, and the lower portions (160) of the two sides are joined to each other using the edges of the steel base (200) and the bent portions (220).

[0037] To this end, a side beam (162) is positioned at the lower part of the two sides (160), and the side beam (162) is bent to form a step (163) on the upper side. Additionally, a joining end (212) bent for joining is provided at the side end of the steel base (200). The joining end (212) of the steel base (200) seated on the lower part of the two sides (160) and the step (163) is welded together to become an integral, and as a result, the inflow of outside air through the edge of the steel base (200) can be prevented. The steel base (200) according to the present invention does not form holes such as nails or rivets that can communicate with the outside air, but is formed integrally by welding using the step (163) and the joining end (212), thereby completely blocking the inside and outside, so that the inflow of outside air is blocked.

[0038] The present invention maintains internal humidity below a certain level by blocking the inflow of external air into the container through a bent-shaped steel base for the container floor. In other words, since the floor of the container's interior space was previously made of wood, external air could enter through the wood, making it difficult to control the humidity inside the container. To fundamentally block the inflow of external air through the container floor, the present invention utilizes a steel base made of steel for the floor.

[0039] The present invention is a container in which the door surface, front surface, top and bottom surfaces, and front surface are all made of steel and internal airtightness is maintained, and which has the function of detecting a fire occurring inside the container and extinguishing it using liquid carbon dioxide (CO2) or liquid nitrogen (N2). Hereinafter, liquid carbon dioxide (CO2) or liquid nitrogen (N2) will be simply referred to as "fire suppression gas" for convenience of explanation.

[0040] FIGS. 3 and 4 show a conceptual view of a container with a fire extinguishing function according to the present invention, and FIG. 5 shows the arrangement of a branch pipe through which fire extinguishing gas is sprayed in a container with a fire extinguishing function according to the present invention.

[0041] In the present invention, liquid carbon dioxide (CO2) or liquid nitrogen (N2) is stored inside a pressure vessel (310) to spray fire extinguishing gas in the event of a fire. FIG. 3 shows the pressure vessel positioned horizontally on the upper side of the container, and FIG. 4 shows the pressure vessel positioned vertically on the front of the container. However, the pressure vessel does not necessarily have to be positioned as shown in FIG. 3 and FIG. 4, and it is understood that it can be positioned inside the container in a different form.

[0042] The present invention extinguishes a fire by activating a fire detection sensor when a fire occurs inside a container and releasing a fire-extinguishing gas installed inside the container in response to the signal from the sensor. In addition, to prevent damage to the container itself due to a sudden rise in internal pressure when a fire occurs, a safety valve is installed and operates in conjunction with the vent hole, but operates based on the internal temperature or pressure sensor signal.

[0043] The present invention is a technology that protects cargo inside a container from fire by providing a fire extinguishing function to prepare for fires occurring inside the container. The container has side walls and a top similar to conventional containers, and the bottom is formed of a steel base with a bent section and joined to the side by welding, having a structure that blocks air inflow through the bottom.

[0044] Specifically, the configuration for detecting and extinguishing a fire inside a container is characterized by comprising: a pressure vessel (310) containing liquid carbon dioxide (CO2) or liquid nitrogen (N2) inside; a fire detection sensor that detects a fire inside the container; a fire suppression valve that opens the inlet of the pressure vessel when the fire detection sensor detects a fire; a first branch pipe (320) located on the upper side of the container, a second branch pipe (330) located on the side of the container, and a third branch pipe (340) located on the lower side of the container, which are arranged to discharge gas vaporized and ejected from the pressure vessel into the container; and a control unit that receives a fire occurrence signal from the fire detection sensor and opens the fire suppression valve. Furthermore, on the surfaces of the first to third branch pipes facing the inside of the container, nozzles for spraying and discharging gas are formed in an appropriate number along their length, and the vaporized gas is sprayed into the container through these nozzles.

[0045] Here, the second branch pipe is preferably embedded and disposed within the corrugated groove formed on the side of the container, and the third branch pipe is preferably embedded and disposed within the corrugated fold portion of the steel base on the bottom of the container so as not to encroach upon the loading space of the cargo accommodated inside.

[0046] The above fire detection sensor may be a smoke detection sensor, a heat detection sensor, a flame detection sensor, or a gas detection sensor, and may also be a sensor having other fire detection functions.

[0047] The above-mentioned management server exists outside the container and can monitor the internal status of the container in real time. The management server may be a container management system that manages the container while tracking its real-time location. The present invention monitors the internal status of the container using a management server located outside the container and transmits and receives necessary information to and from a control unit located inside the container through communication. Various commonly used communication means may be applied as the means for communication.

[0048] After receiving a fire occurrence signal from the fire detection sensor, the management server can remotely open the fire suppression valve through the control unit. That is, opening the fire suppression valve of the pressure vessel to spray gas can be performed internally within the container or can be controlled remotely.

[0049] The above management server monitors and stores the temperature, humidity, and gas emission status inside the container in real time, allowing the location of the fire and the internal condition (temperature, humidity, gas emission, etc.) immediately before the fire occurs to be checked remotely in real time.

[0050] The pressure vessel is positioned vertically on the front interior of the container or horizontally on the top of the container, and the size and shape of the pressure vessel can vary as needed, and the number of vessels can be one or multiple, in an appropriate number.

[0051] In the event of a fire, the internal pressure of the container may rapidly increase; taking this into consideration, a safety valve may be further included to prevent damage caused by the increase in internal pressure of the container, and the opening of the safety valve may be performed by a control unit inside the container or by the management server.

[0052] The present invention utilizes such a structure to provide a function capable of detecting a fire inside a container and extinguishing it on its own, thereby enabling the effect of detecting the fire and efficiently suppressing it in the early stages when a fire occurs inside the container.

[0053] The present invention may also be a container that serves an active dehumidification function. The container of the present invention is a sealed container in which the interior of the container where the cargo is located is sealed to prevent air inside the container from freely escaping to the outside or air outside from freely entering the container. To achieve this, gaps inside the container are sealed or welded to ensure complete sealing. The sealed container configured in this way is provided with a passage through which the air inside the container and the air outside can communicate, which is an air passage through a ventilation module to be described below.

[0054] FIG. 6 is an exploded view of a ventilation module of a container according to the present invention, FIG. 7 is a view of the ventilation module installed on the side wall of a container according to the present invention, and FIG. 8 is a partial configuration of the ventilation module of a container according to the present invention.

[0055] The reason for configuring air passages through ventilation modules in this manner is that if the interior of a container is completely sealed off by blocking external air, the side walls may bulge or collapse due to changes in air pressure caused by internal temperature fluctuations. In other words, when containers are loaded onto ships and sail across the ocean, they are exposed to various temperature environments. Problems arise because, in a sealed state, a drop in internal temperature causes internal pressure to decrease, leading to the collapse of the side walls, while a rise in internal temperature causes internal pressure to increase, resulting in the side walls protruding outwards.

[0056] Fig. 6 shows a ventilation module (400, 500, 600) provided in the container of the present invention to communicate air inside and outside the container, and Fig. 7 shows the ventilation module installed on a container side plate (wall) as an example. That is, an opening is formed in the container wall, and the ventilation module described below is positioned at the location where the opening is formed.

[0057] In other words, the present invention is characterized by having a ventilation module (400, 500, 600) that communicates air inside and outside the container and has a humidity control function inside the container, and the ventilation module may be installed inside or outside the container. In the following description, the installation inside the container is used as an example.

[0058] The above ventilation module comprises a valve unit (400) that communicates or blocks the external air and internal air of the container based on a specific physical quantity inside the container, a desiccant holder (500) connected to the valve unit, and a dehumidifying member (600) connected to the desiccant holder. A desiccant is provided inside the dehumidifying member (600), so that the external air of the container that has passed through the valve unit undergoes a dehumidification process and then flows into the container. Here, a sensing unit that detects a specific physical quantity may be further included to detect the specific physical quantity inside the container. The valve unit communicates or blocks the external air and internal air of the container based on the physical quantity detected by the sensing unit. At this time, the physical quantity inside the container detected by the sensing unit is one or more of temperature, humidity, and pressure, but is not limited to the physical quantities presented herein. The sensing unit may be formed integrally with the valve unit, but may also be separated from the valve unit and positioned inside the container to more effectively detect the specific physical quantity.

[0059] In addition, to communicate air between the inside and outside of the container, a ventilation hole (165) formed in the container side plate (160) to allow outside air to flow into the container may be provided. In addition, the ventilation module may be installed inside or outside the container, and if the ventilation module is installed outside the container, it is installed adjacent to the ventilation hole, and if the ventilation module is installed inside the container, the outside air passing through the ventilation hole (165) flows into the valve part (400) of the ventilation module (see FIG. 7).

[0060] In addition, the valve or sensing unit may require power supply for operation, and for this purpose, a battery may be placed or a solar cell module (450) may be placed externally. When a solar cell module is placed for power supply, it is preferable to place it on the side plate of the container. In addition, when the ventilation module is located inside the container, a cable is provided to supply power from the solar cell module to the valve or sensing unit, and the cable is placed inside and outside the container through the ventilation hole (165).

[0061] The operation of the above valve part may be driven by such electric force or by magnetic force such as a magnet, or it may be driven by the pressure difference between the inside and outside of the container.

[0062] The above valve section (400) is equipped with a plate (410) attached to the side plate of the container, a valve body (420) that controls the air flow by having a valve inside, and a connection section (430) that allows the air passing through the valve body to flow into the dehumidification section.

[0063] Based on specific physical quantities (temperature, pressure, humidity, etc.) inside the container detected by the sensing unit, the valve unit (400) opens and closes the valve inside the valve body to release internal air or introduce external air. Additionally, a control unit may be further included to receive physical quantity data detected by the sensing unit, make a judgment, and control the operation of the valve unit. If necessary, a fan and a motor may be further provided to allow external air to be introduced more effectively when the valve unit is open.

[0064] Looking at the operating principle, when the pressure inside the container is a specific physical quantity, if the pressure inside the container becomes higher than a specific value, the one-way valve inside the valve section opens, allowing air inside the container to be released to the outside. At this time, another one-way valve connected to the dehumidification section becomes closed. If the pressure inside the container becomes lower than a specific value, the valve inside the valve section opens, allowing air from outside the container to flow into the container. At this time, the one-way valve is closed when releasing the air to the outside.

[0065] However, since the outside air entering the container contains moisture, if it is introduced directly into the container, it increases the relative humidity inside the container, which becomes a problem. To solve this, the present invention ensures that the air introduced into the container passes through the desiccant holder (500) and dehumidifying member (600), which will be described below, before entering the container, thereby maintaining the humidity inside the container below a specific value. The desiccant holder (500) has a structure that is hollow vertically, and the dehumidifying member (600) is a bag-type member that is continuously arranged vertically within the desiccant holder and contains a desiccant inside to perform dehumidification.

[0066] Referring specifically to FIG. 6, the dehumidifier holder (500) has a body portion (510) that is vertically perforated and hollow so that air can flow vertically. At the top of the body portion (510), an inlet (520) is formed, which is a passage for air passing through the valve portion (400) to flow into the interior, and a dehumidifier member hook portion (530) is formed to be hooked and connected to the dehumidifier member (600). The dehumidifier holder (500) can be hung at an appropriate location on the side wall of a container, and a hook portion (540) for this purpose can be formed at the top of the body portion (510). FIG. 7 illustrates, by way of example, the dehumidifier holder being hung at an appropriate location on the side wall of a container using the hook portion (540).

[0067] The above dehumidifying member (600) is composed of a plurality of first dehumidifying members (610), second dehumidifying members (620), third dehumidifying members (630), fourth dehumidifying members (640), etc., which are connected vertically and continuously below the dehumidifying member holder (500). For convenience, the lowest dehumidifying member is referred to as the nth dehumidifying member. Then, air passing through the dehumidifying member holder (500) and discharged to the lower part of the body portion (510) of the dehumidifying member holder flows into the interior of the dehumidifying member (600). Since a powder-type dehumidifying agent is provided inside the dehumidifying member (600), moisture contained in the external air is removed. Then, the air from which moisture has been removed is discharged to the outside through the lower part of the dehumidifying member (600) and enters the interior of the container.

[0068] If we look closely at the process of air passing through the dehumidifying member (600), the air first enters the interior of the first dehumidifying member (610) through the upper part of the first dehumidifying member (610) located at the top, and then exits through the lower part of the first dehumidifying member (610). Then, the air exiting through the lower part of the first dehumidifying member (610) does not exit outside the dehumidifying member but flows directly into the interior of the second dehumidifying member (620) through the upper part of the second dehumidifying member (620), and then exits through the lower part of the second dehumidifying member (620). By repeating this process, the air passes through the nth dehumidifying member located at the bottom, and then is discharged through the lower part of the nth dehumidifying member and enters the interior of the container. However, since the first dehumidifying member (610), the second dehumidifying member (620), the third dehumidifying member (630), and the fourth dehumidifying member (640) are equipped with a powder-type dehumidifying agent inside, the external air is dehumidified through this process and flows into the container. The arrows A1, A2, and A3 shown in FIG. 6 indicate the direction of air flow.

[0069] To this end, the first dehumidifying member (610), the second dehumidifying member (620), the third dehumidifying member (630), and the fourth dehumidifying member (640) are connected to each other through a connecting joint (700). The connecting joint is provided with an air passage that allows air to pass through while preventing the internal dehumidifying agent from passing through. The connecting joint can be formed in various forms, such as stitching.

[0070] Additionally, the uppermost first dehumidifying member (610) forming the dehumidifying member (600) may be provided with a hook (600a) for hanging the dehumidifying member on the dehumidifier holder (500). Furthermore, a sealing band (600b) may be provided on the upper edge of the first dehumidifying member (610) for sealing while it is hung on the dehumidifier holder (500). When the first dehumidifying member (610) is hung on the dehumidifier holder (500), the upper edge of the first dehumidifying member (610) is made to adhere to the body part (510) of the dehumidifier holder by means of the sealing band, thereby preventing air from the dehumidifier holder (500) from entering the dehumidifying member (600) and being discharged.

[0071] FIG. 8 illustrates the process of hanging a dehumidifying member on the dehumidifier holder (500) using the ring (600a) of the dehumidifying member (600). In FIG. 8, only the first dehumidifying member (610) is shown for convenience.

[0072] That is, the ventilation module can be installed inside or outside the container. When the ventilation module is installed inside the container, it is preferable to attach it to the container side plate (wall). Considering the efficiency of the cargo receiving space inside the container, the dehumidification unit is preferably provided in the inner curved gap of the post (P) located at the corner of the container.

Claims

1. A container formed of a steel base having a bent bottom and joined to the side by welding to block air inflow through the bottom bottom, A pressure vessel (310) containing carbon dioxide (CO2) or nitrogen (N2) inside; A fire detection sensor that detects a fire inside a container; A fire suppression valve that opens the inlet of the pressure vessel when the fire detection sensor detects a fire; A first branch pipe (320) located on the upper side of the container, a second branch pipe (330) located on the side of the container, and a third branch pipe (340) located on the lower side of the container, which are arranged to discharge gas vaporized and ejected from the pressure vessel into the container; and A fire suppression and humidity control container equipped with a fire extinguishing function, characterized by including a control unit that receives a fire occurrence signal from the fire detection sensor and opens the fire suppression valve.

2. In Paragraph 2, The above-mentioned second branch pipe is embedded and positioned inside a corrugated groove formed on the side of the container, and The above-mentioned third branch pipe is characterized by being embedded and arranged inside the corrugated fold portion of the steel base on the bottom of the container, in a fire-extinguishing moisture-prevention container.

3. In Paragraph 2, A fire-extinguishing moisture-prevention container equipped with a fire extinguishing function, characterized in that the fire detection sensor is a smoke detection sensor, a heat detection sensor, a flame detection sensor, or a gas detection sensor.

4. In Paragraph 2, It further includes a management server located outside the container and transmitting and receiving necessary information with the control unit inside the container, A fire suppression and humidity control container equipped with a fire extinguishing function, characterized in that the above management server receives a fire occurrence signal from the above fire detection sensor and then remotely opens a fire suppression valve through the above control unit.

5. In Paragraph 4, A fire-extinguishing and humidity-prevention container equipped with a fire extinguishing function, characterized by the above-mentioned management server monitoring and storing the temperature, humidity, and gas emission status inside the container in real time.

6. In Paragraph 2, The pressure vessel is positioned vertically on the inner front surface of the container or horizontally on the upper surface of the container, and A fire-extinguishing moisture control container equipped with a fire extinguishing function, characterized in that one or more pressure vessels are arranged.

7. In Paragraph 2, It further includes a safety valve to prevent damage to the container due to a sudden rise in internal pressure in the event of a fire, and A fire-extinguishing moisture-prevention container equipped with a fire extinguishing function, characterized in that the control unit opens the safety valve when it receives a fire occurrence signal from the fire detection sensor.

8. In Paragraph 2, Further equipped with a ventilation module that communicates air inside and outside the container and has a humidity control function inside the container, The above ventilation module is, A sensing unit that detects a specific physical quantity inside the above container; A valve unit that connects or blocks the external air and internal air of the container based on a physical quantity detected by the sensing unit; A desiccant holder connected to the above valve part; and A fire-extinguishing dehumidifying container having a fire extinguishing function, characterized by including a dehumidifying member connected to the dehumidifying holder and having a dehumidifying agent inside, so that external air of the container passing through the valve part undergoes a dehumidification process and then flows into the container.

9. In Paragraph 8, The above desiccant holder is, A hollow body portion that is vertically perforated to allow air to flow vertically; An inlet provided at the top of the body portion and connected to the valve portion, which is a passage through which air passing through the valve portion flows into the interior; and A fire-extinguishing moisture-prevention container having a fire-extinguishing function, characterized by including a dehumidifying member catch portion for connecting the above-mentioned dehumidifying member.

10. In Paragraph 9, The above dehumidifying member is composed of a plurality of first to nth dehumidifying members that are continuously connected vertically below the dehumidifier holder, and Between each of the above first to nth dehumidifying members, a connecting joint is provided that connects them while allowing air to pass through but preventing the dehumidifying agent from passing through. A fire-extinguishing moisture-repellent container equipped with a fire-extinguishing function, characterized in that air passing through a dehumidifying element is discharged into the interior of the container after undergoing a dehumidification process.