Apparatus and system for exhausting gas

Abstract

The present disclosure relates to an apparatus and system for exhausting gas. According to an embodiment of the present disclosure, the apparatus comprises: a housing which is configured to extract a cooling agent and to which an exhaust duct can be connected; a container disposed inside the housing and configured to store the cooling agent; a loading table disposed inside the container and configured to load the cooling agent; and an elevating device disposed below the loading table and configured to elevate the loading table inside the container, wherein the gas generated from the cooling agent stored in the container can be exhausted through the exhaust duct connected to the housing.

Description

Devices and systems for exhausting gases

[0001] The present disclosure relates to a device and system for exhausting gas.

[0002] As online markets become more active, the demand for diverse logistics services is expanding. In particular, the recent surge in demand for rapid delivery of fresh produce, food, and pharmaceuticals has heightened the need for rapid and safe delivery and storage of refrigerated and frozen products. When refrigerated and frozen products are packaged at logistics centers, refrigerants (e.g., dry ice) are sometimes used together. This can generate gases (e.g., carbon dioxide). If these gases exceed a certain concentration, they can pose a health and safety risk to workers using refrigerants for packaging. For example, they can cause various health problems, such as dizziness, shortness of breath, and headaches.

[0003] To address these issues, technology is required to efficiently exhaust or ventilate gases generated from refrigerants in workers' workspaces.

[0004] A technical problem to be solved through one embodiment of the present disclosure is to locally exhaust gas generated from a refrigerant so that the gas can be exhausted intensively.

[0005] Another technical problem to be solved through one embodiment of the present disclosure is to design holes through which gas generated from a refrigerant is exhausted in various shapes and sizes so that the gas can be exhausted efficiently.

[0006] Another technical problem to be solved through one embodiment of the present disclosure is to enable the refrigerant to be easily taken out from the container by automatically adjusting the height of the loading platform on which the refrigerant is loaded according to the weight of the refrigerant.

[0007] The technical problems of the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art of the present disclosure from the description below.

[0008] A device according to one embodiment of the present disclosure comprises a housing configured to be capable of extracting a refrigerant and to which an exhaust duct is connectable, a container disposed inside the housing and configured to store the refrigerant, a loading platform disposed inside the container and configured to load the refrigerant, and an elevating device disposed below the loading platform and configured to elevate the loading platform inside the container, wherein gas generated from the refrigerant stored in the container can be exhausted through the exhaust duct connected to the housing.

[0009] In one embodiment, the housing includes a first opening configured to allow the coolant to be withdrawn from the housing, and a second opening configured to allow the exhaust duct to be connected to the housing, wherein the first opening and the second opening may be respectively disposed on opposite sides of the housing.

[0010] In one embodiment, the container includes a third opening disposed opposite the first opening, and a fourth opening disposed opposite the second opening, wherein the third opening and the fourth opening may each be disposed on opposite sides of the container.

[0011] In one embodiment, at least one side of each of the container and the loading platform may have the shape of a perforated plate including a plurality of holes.

[0012] In one embodiment, a gap is provided between the container and the housing, and between the loading platform and the housing, and the gas can be exhausted through the plurality of holes, the gap, and the exhaust duct.

[0013] In one embodiment, each of the plurality of holes may have the same size.

[0014] In one embodiment, the size of each of the plurality of holes may be different depending on the distance from the second opening or the fourth opening.

[0015] In one embodiment, the device may further include a moving device disposed on the lower side of the housing and configured to move the housing.

[0016] In one embodiment, the device further includes a sensor for measuring the weight of the refrigerant loaded on the loading platform, and the lifting device may be configured to control the degree of lifting of the loading platform according to the weight of the refrigerant measured by the sensor.

[0017] In one embodiment, the lifting device may be configured to lower the loading platform according to an amount by which the weight of the refrigerant measured by the sensor increases, and to raise the loading platform according to an amount by which the weight of the refrigerant measured by the sensor decreases.

[0018] In one embodiment, the coolant may comprise dry ice.

[0019] A system according to one embodiment of the present disclosure comprises: an exhaust duct; a negative pressure generator connected to the exhaust duct and configured to generate negative pressure within the exhaust duct; a housing configured to be capable of extracting a refrigerant and to which the exhaust duct can be connected; a container disposed inside the housing and configured to store the refrigerant; a loading platform disposed inside the container and configured to load the refrigerant; and an elevating device disposed below the loading platform and configured to elevate the loading platform within the container, wherein gas generated from the refrigerant stored in the container can be exhausted through the exhaust duct connected to the housing by the negative pressure generated by the negative pressure generator.

[0020] In one embodiment, the housing includes a first opening configured to allow the coolant to be withdrawn from the housing, and a second opening configured to allow the exhaust duct to be connected to the housing, wherein the first opening and the second opening may be respectively disposed on opposite sides of the housing.

[0021] In one embodiment, the exhaust duct may include a flexible duct connectable to the second opening, and a main duct connectable between the flexible duct and the negative pressure generator.

[0022] According to the present disclosure, gas generated from a refrigerant can be locally exhausted, so that the gas can be exhausted intensively.

[0023] According to the present disclosure, by designing holes through which gas generated from a refrigerant is exhausted in various shapes and sizes, the gas can be exhausted efficiently.

[0024] According to the present disclosure, the height of the loading platform on which the refrigerant is loaded is automatically adjusted according to the weight of the refrigerant, so that the refrigerant can be easily taken out from the container.

[0025] The effects according to the technical idea of ​​the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the specification.

[0026] FIG. 1 is a front view of a device according to one embodiment of the present disclosure.

[0027] FIG. 2 is a perspective view of a device according to one embodiment of the present disclosure.

[0028] FIG. 3 is a perspective view of a container according to one embodiment of the present disclosure.

[0029] FIG. 4 is a perspective view of a loading platform and an elevator device according to one embodiment of the present disclosure.

[0030] FIG. 5 is a schematic diagram of a system according to one embodiment of the present disclosure.

[0031] The various embodiments described in this disclosure are exemplified for the purpose of clearly explaining the technical concept of this disclosure and are not intended to be limited to specific embodiments. The technical concept of this disclosure includes various modifications, equivalents, alternatives, and embodiments selectively combined from all or part of the embodiments described in this disclosure. Furthermore, the scope of the technical concept of this disclosure is not limited to the various embodiments presented below or the specific descriptions thereof.

[0032] Terms used in this disclosure, including technical or scientific terms, unless otherwise defined, may have the meaning commonly understood by a person of ordinary skill in the art to which this disclosure belongs.

[0033] The expressions "includes," "may include," "comprises," "may have," "have," and "may have" used in this disclosure indicate the presence of a target feature (e.g., a function, operation, or component), but do not exclude the presence of other additional features. In other words, such expressions should be understood as open-ended terms that imply the possibility of including other embodiments.

[0034] The singular expressions used in this disclosure may include the plural meaning unless the context clearly indicates otherwise, and the same applies to the singular expressions set forth in the claims.

[0035] The expressions "first," "second," or "first", "second", etc. used in this document, unless the context indicates otherwise, are used to refer to multiple similar objects and to distinguish one object from another, and do not limit the order or importance among the objects.

[0036] As used herein, the expressions "A, B, and C", "A, B, or C", "A, B, and / or C", or "at least one of A, B, and C", "at least one of A, B, or C", "at least one of A, B, and / or C", etc., may refer to each of the listed items or to all possible combinations of the listed items. For example, "at least one of A or B" may refer to (1) at least one A, (2) at least one B, (3) at least one A and at least one B.

[0037] The expression "based on" as used in this disclosure is used to describe one or more factors that influence a decision, act of judgment, or action described in a phrase or sentence containing this expression, and this expression does not exclude additional factors that influence the decision, act of judgment, or action.

[0038] As used herein, the expression that a component (e.g., a first component) is “connected” or “connected” to another component (e.g., a second component) may mean that the component is directly connected or connected to the other component, as well as connected or connected via a new other component (e.g., a third component).

[0039] Directional indicators such as “upper” and “upper” used in the present disclosure may point upwards based on a specific direction of the target object in the attached drawings, and directional indicators such as “lower” and “lower” may point in the opposite direction, that is, downwards based on a specific direction of the target object.

[0040] The expression “configured to” used in the present disclosure may have the meanings of “set to do”, “having the ability to do”, “modified to do”, “made to do”, “capable of doing”, etc., depending on the context.

[0041] Hereinafter, various embodiments of the present disclosure will be described with reference to the attached drawings. In the attached drawings and the description of the drawings, identical or substantially equivalent components may be assigned the same reference numerals. Furthermore, in the description of various embodiments below, duplicate descriptions of identical or corresponding components may be omitted, but this does not mean that such components are not included in the embodiments.

[0042] FIG. 1 is a front view of a device according to one embodiment of the present disclosure, and FIG. 2 is a perspective view of a device according to one embodiment of the present disclosure.

[0043] When packaging refrigerated or frozen products in a logistics center, a coolant (C) may be used to maintain the refrigerated or frozen state of these products, and a device (100) according to one embodiment of the present invention may be a device for temporarily storing such coolant (C) to enable a worker to take it out, and at the same time exhausting gas generated from the coolant (C).

[0044] Additionally, the refrigerant (C) includes dry ice, which is solid carbon dioxide (CO2) and can generate gaseous carbon dioxide (CO2) upon sublimation at room temperature. Furthermore, the refrigerant (C) can be packaged together with refrigerated or frozen products, for example, in a sealed separate packaging.

[0045] Referring to FIGS. 1 and 2, a device (100) according to one embodiment of the present disclosure may include a housing (110) configured to enable extraction of a coolant (C) and to which an exhaust duct (200) is connectable. Specifically, the housing (110) may include a first opening (150) configured to enable extraction of the coolant (C) from the housing (110), and a second opening (160) configured to enable extraction of the exhaust duct (200) from the housing (110). As a result, the coolant (C) may be extracted from the first opening (150), and gas generated from the coolant (C) may be exhausted through the exhaust duct (200).

[0046] In addition, the first opening (150) and the second opening (160) may be arranged on opposite sides of the housing (110), respectively. For example, the first opening (150) may be arranged on the front side of the housing (110), and the second opening (160) may be arranged on the rear side of the housing (110). Alternatively, the second opening (160) may be arranged on the side of the surface where the first opening (150) is located. The arrangement of the first opening (150) and the second opening (160) is not limited thereto, and may be arranged in various ways within the scope of the problem to be solved by the present invention.

[0047] FIG. 3 is a perspective view of a container according to one embodiment of the present disclosure.

[0048] A device (100) according to one embodiment of the present disclosure may include a container (120) arranged inside a housing (110) and configured to store a coolant (C). Specifically, the container (120) may be installed as a separate component inside the housing (110) by interposing a connecting member therebetween, or may be installed in a manner of being configured as an integral part with the housing (110). In addition, the container (120) may include a third opening (121) arranged opposite the first opening (150), and a fourth opening (122) arranged opposite the second opening (160). As a result, the coolant (C) may be extracted, i.e., taken out, from the inside of the container (120) through the third opening (121) and the first opening (150) in that order. In addition, the gas generated from the refrigerant (C) can be exhausted from the inside of the container (120) through the fourth opening (122) and the second opening (160) in that order. For example, when the container (120) is configured as an integral part with the housing (110), the first opening (150) of the housing (110) and the third opening (121) of the container (120) can be configured as connected openings, and the second opening (160) of the housing (110) and the fourth opening (122) of the container (120) can also be configured as connected openings. In this case, the coolant (C) can be taken out from the inside of the container (120) through substantially one opening (i.e., a connected opening composed of a first opening (150) and a third opening (121)), and also, the gas generated from the coolant (C) can be exhausted from the inside of the container (120) through another substantially one opening (i.e., another connected opening composed of a second opening (160) and a fourth opening (122)).

[0049] In addition, the third opening (121) and the fourth opening (122) may be respectively positioned on opposite sides of the container (120). For example, the third opening (121) may be positioned on the front of the container (120), and the fourth opening (122) may be positioned on the rear of the housing (110), such that the third opening (121) and the fourth opening (122) may be positioned to face the first opening (150) and the second opening (160), respectively. Alternatively, the fourth opening (122) may be positioned on the side of the surface on which the third opening (121) is positioned. The positioning of the third opening (121) and the fourth opening (122) is not limited thereto, and may be variously positioned within the scope of the problem to be solved by the present invention.

[0050] In addition, the device (100) according to one embodiment of the present disclosure may include a loading platform (130) arranged inside a container (120) and configured to load a refrigerant (C), and an elevating device (140) arranged on the lower side of the loading platform (130) and configured to elevate the loading platform (130) inside the container (120).

[0051] Specifically, the loading platform (130) is placed inside the container (120) and can be elevated along the vertical direction of the container (120) while the refrigerant (C) is loaded on the loading platform (130). In addition, the elevating device (140) may include an elevation shaft for supporting the loading platform (130) and a driving device for moving the elevation shaft up and down. The configuration of the loading platform (130) and the elevating device (140) is not limited thereto and may be configured in various ways within the scope of the problem to be solved by the present invention.

[0052] In addition, the device (100) according to one embodiment of the present disclosure may include a cover (180) configured to open and close the upper portion of at least one of the housing (110) or the container (120), and the cover (180) may include a handle (181) installed on the upper portion of the cover (180) and a hinge (182) for connecting with the housing (110).

[0053] For example, when a worker uses a coolant (C) when packaging a refrigerated or frozen product in a logistics center, the packaging work can be performed while storing the amount of coolant (C) to be used for a given work period in the device (100). At this time, the worker can open and close the cover (180) by pulling or pushing the handle (181) of the cover (180), and the cover (180) can open and close the upper part of at least one of the housing (110) or the container (120) by pivoting around an axis on which a hinge (182) is installed. Here, there may be one or more hinges (182). By the above-described configuration, the worker can open the cover (180) by pulling the handle (181) of the cover (180), put one or more refrigerants (C) into the container (120), and then close the cover (180) by pushing the handle (181) of the cover (180), thereby storing the refrigerant (C) in the device (100).

[0054] Additionally, the device (100) according to one embodiment of the present disclosure may include a moving device (170) disposed on the lower side of the housing (110) and configured to move the housing (110).

[0055] For example, when a worker packages a product in a logistics center, the work can be performed by placing the product on a work station, taking out a coolant (C) from the device (100), and packaging it together with the product. Since the arrangement of the work station varies depending on the logistics center and each work site of the logistics center, there are cases where the device (100) needs to be moved so that it can be placed adjacent to the work station. In this case, the device (100) can be moved adjacent to the work station by a moving device (170). The moving device (170) can include a rotatable wheel and a support member that supports the lower part of the housing (110) and can be connected to the wheel. The configuration of the moving device (170) is not limited thereto, and can be configured in various ways within the scope of the problem to be solved by the present invention.

[0056] Additionally, according to one embodiment of the present disclosure, gas generated from a coolant (C) stored in a container (120) can be exhausted through an exhaust duct (200) connected to a housing (110).

[0057] For example, when a worker performs packaging work using a coolant (C) of a product at a logistics center, the worker may be exposed to a gas generated from the coolant (C) (e.g., carbon dioxide generated from dry ice). However, according to the above-described configuration, the coolant (C) is stored in a container (120) inside the housing (110) of the device (100), and the gas generated from the coolant (C) is exhausted through an exhaust duct (200) connected to the housing (110), so that the amount of gas to which the worker is exposed can be minimized. Hereinafter, the configuration and method for exhausting the gas generated from the coolant (C) will be described in detail.

[0058] FIG. 4 is a perspective view of a loading platform and an elevator device according to one embodiment of the present disclosure.

[0059] According to one embodiment of the present disclosure, at least one surface of each of the container (120) and the loading platform (130) may have the shape of a perforated plate including a plurality of holes (123). In addition, a gap (G) is provided between the container (120) and the housing (110), and between the loading platform (130) and the housing (110), and gas generated from the refrigerant (C) can be exhausted through the plurality of holes (123), the gap (G), and the exhaust duct (200).

[0060] Looking specifically at FIGS. 2 to 4, the plurality of holes (123) may be holes for exhausting gas generated from the refrigerant (C), and for example, the plurality of holes (123) may be arranged on the entire surface (i.e., the front, rear, left, right, upper, and lower surfaces) of the refrigerant (C) loaded on the upper surface of the loading platform (130) in the container (120). As a result, the gas generated from the refrigerant (C) may be prevented from leaking to the outside through, for example, the first opening (150) and the third opening (121), while being quickly exhausted through the plurality of holes (123).

[0061] In addition, referring to FIGS. 1 and 2, a gap (G) may be provided between the side surface of the container (120) and the side surface of the housing (110) at the front, rear, left, and right sides with respect to the coolant (C). In addition, referring to FIG. 1, with respect to the lower surface with respect to the coolant (C), for example, when the loading platform (130) is at a relatively low position, a gap (G) may be provided between the lower surface of the loading platform (130) and the housing (110), and when the loading platform (130) is at a relatively high position, a gap (G) may be provided between the lower surface of the loading platform (130) and at least one of the container (120) or the housing (110). In addition, although not shown in the drawings, a gap (G) may be provided between the upper surface of the container (120) and the housing (110) at the upper surface with respect to the coolant (C). In this way, by arranging a plurality of holes (123) on the entire surface of the loading platform (130) within the container (120) based on the refrigerant (C) loaded thereon, and providing a gap (G) corresponding to each of the entire surfaces, the gas generated from the refrigerant (C) can be exhausted sequentially through the plurality of holes (123), the gap (G), and the exhaust duct (200). As described below, a negative pressure generator (210) configured to generate negative pressure therein is installed in the exhaust duct (200), and the gas generated from the refrigerant (C) within the container (120) can be exhausted through the plurality of holes (123), the gap (G), and the exhaust duct (200) by the negative pressure generated by the negative pressure generator (210).

[0062] Meanwhile, with respect to the upper surface of the container (120), the container (120) may have its own upper surface, a plurality of holes (123) may be arranged on the upper surface of the container (120), and a gap (G) may be provided between the container (120) and the housing (110) (i.e., between the container and the cover (180)). In this case, the upper surface of the container (120) may be configured to be opened and closed together with or separately from the cover (180). Accordingly, when a worker stores a coolant (C) in the device (100), the coolant (C) may be stored in the container (120) by opening the upper surface of the container (120) together with or separately from the cover (180). Alternatively, as illustrated in FIG. 3, the container (120) may not have its own upper surface, but may be configured to have a plurality of holes (123) arranged on the lower surface of the cover (180), and the inside of the cover (180) may be configured to form a gap (G). In this case, it is possible to store the coolant (C) in the container (120) by opening only the cover (180). Alternatively, an opening for putting the coolant (C) may be arranged in a portion of the upper surface of the container (120), and a plurality of holes (123) may be arranged in the remaining portion, and a gap (G) may be provided between the upper surface of the container (120) and the housing (110) (i.e., between the cover (180)). In this case, it is possible to store the coolant (C) in the container (120) through a portion of the upper surface of the container (120) by opening only the cover (180).

[0063] In addition, according to one embodiment of the present disclosure, the sizes of each of the plurality of holes (123) may be the same. Specifically, the sizes of each of the plurality of holes (123) included in the container (120) and the loading platform (130) may be the same, and the diameter of each of the plurality of holes (123) may be designed to be, for example, 1 mm, 2 mm, 4 mm, 8 mm, 10 mm, etc. The size of each of the plurality of holes (123) is not limited thereto, and may be designed in various ways within the scope of the problem to be solved by the present invention.

[0064] Additionally, according to one embodiment of the present disclosure, the size of each of the plurality of holes (123) may vary depending on the distance from the second opening (160) or the fourth opening (122). For example, the closer the hole (123) is to the second opening (160) or the fourth opening (122), the larger the size of the hole (123), and the farther the hole (123) is from the second opening (160) or the fourth opening (122), the smaller the size of the hole (123). In other words, the size of the hole (123) arranged near the second opening (160) or the fourth opening (122) connected to the exhaust duct (200) (i.e., where the negative pressure is relatively strong) can be increased, while the size of the hole (123) arranged near the first opening (150) or the third opening (121) opposite the second opening (160) or the fourth opening (122) (i.e., where the negative pressure is relatively weak) can be decreased. As a result, the gas generated from the refrigerant (C) can be efficiently exhausted toward the second opening (160) or the fourth opening (122), and the possibility of being exposed to the outside of the device (100) (for example, to an operator) through the first opening (150) or the third opening (121) can be reduced.

[0065] Alternatively, for example, the closer the hole (123) is to the second opening (160) or the fourth opening (122), the smaller the size of the hole (123), and the farther the hole (123) is from the second opening (160) or the fourth opening (122), the larger the size of the hole (123). In other words, the size of the hole (123) disposed near the second opening (160) or the fourth opening (122) connected to the exhaust duct (200) (i.e., where the negative pressure is relatively strong) may be made small, while the size of the hole (123) disposed near the first opening (150) or the third opening (121) opposite the second opening (160) or the fourth opening (122), respectively (i.e., where the negative pressure is relatively weak) may be made large. Accordingly, negative pressure can be uniformly applied to the entire surface of the refrigerant (C) loaded on the upper surface of the loading platform (130) within the container (120), and gas generated from the refrigerant (C) can be uniformly exhausted across the entire surface. The size of each arrangement of the plurality of holes (123) is not limited thereto, and can be designed in various ways within the scope of the problem to be solved by the present invention.

[0066] In addition, the device (100) according to one embodiment of the present disclosure may further include a weight sensor (190) that measures the weight of the refrigerant (C) loaded on the loading platform (130).

[0067] Specifically, referring to FIG. 4, a weight sensor (190) may be placed at the bottom of a loading platform (130). The placement of the weight sensor (190) is not limited thereto, and may be placed in various ways within the scope of the problem to be solved by the present invention.

[0068] In addition, according to one embodiment of the present disclosure, the lifting device (140) may be configured to control the degree of elevation of the loading platform (130) according to the weight of the coolant (C) measured by the weight sensor (190). Specifically, the lifting device (140) may be configured to lower the loading platform (130) according to an amount by which the weight of the coolant (C) measured by the weight sensor (190) increases, and to raise the loading platform (130) according to an amount by which the weight of the coolant (C) measured by the weight sensor (190) decreases.

[0069] For example, when a worker puts one or more refrigerants (C) into a container (120), the loading platform (130) can be lowered by the weight of the refrigerants (C). At this time, when the weight of the refrigerants (C) is greater than a predetermined weight, the loading platform (130) can be made to remain at the lowest position. In addition, as the worker performs the packaging work, as the refrigerants (C) loaded in the container (120) are taken out, the loading platform (130) can be raised by the weight of the taken out refrigerants (C), so that the refrigerants (C) loaded on the upper surface of the loading platform (130) can be exposed to the outside through the first opening (150) and the third opening (121). This allows the refrigerant (C) to always be placed in a position where it can be easily removed through the first opening (150) and the third opening (121) without the worker having to repeatedly raise the loading platform (130) during packaging work. The configuration of the weight sensor (190) is not limited thereto and can be configured in various ways within the scope of the problem to be solved by the present invention.

[0070] Additionally, according to one embodiment of the present disclosure, an elastic member (e.g., a spring) may be installed under the loading platform (130). This elastic member may be configured to support the loading platform (130) from the bottom while mechanically controlling the degree of elevation of the loading platform (130) according to the weight of the refrigerant (C) loaded on the upper surface of the loading platform (130), and may be used in place of or together with at least one of the above-described elevation device (140) or weight sensor (190). The configuration of the elastic member is not limited thereto, and may be configured in various ways within the scope of the problem to be solved by the present invention.

[0071] In addition, according to one embodiment of the present disclosure, a position sensor that recognizes the position of the coolant (C) may be attached near the first opening (150) of the housing (110) or the third opening (121) of the container (120), and may be used instead of or together with the weight sensor (190) described above. For example, during a packaging operation, a worker may raise the loading platform (130) until a specific height or specific position of the coolant (C) is recognized by the position sensor, thereby ensuring that the coolant (C) is always placed in a position that is easy to take out through the first opening (150) and the third opening (121). The configuration of the position sensor is not limited thereto, and may be configured in various ways within the scope of the problem to be solved by the present invention.

[0072] FIG. 5 is a schematic diagram of a system according to one embodiment of the present disclosure.

[0073] A system (10) according to one embodiment of the present disclosure may include an exhaust duct (200), a negative pressure generator (210) connected to the exhaust duct (200) and configured to generate negative pressure within the exhaust duct (200), a housing (110) configured to be able to extract a coolant (C) and connect the exhaust duct (200) to the configuration of the above-described device (100), that is, a container (120) disposed inside the housing (110) and configured to store the coolant (C), a loading platform (130) disposed inside the container (120) and configured to load the coolant (C), and an elevating device (140) disposed below the loading platform (130) and configured to elevate the loading platform (130) within the container (120). In addition, the gas generated from the coolant (C) stored in the container (120) can be exhausted through the exhaust duct (200) connected to the housing (110) by the negative pressure generated by the negative pressure generator (210). In addition, the housing (110) can include a first opening (150) configured to enable the coolant (C) to be extracted from the housing (110), and a second opening (160) configured to enable the exhaust duct (200) to be connected to the housing (110), and the first opening (150) and the second opening (160) can be respectively arranged on opposite sides of the housing (110).

[0074] Looking specifically at the exhaust duct (200) described above through FIG. 5, the exhaust duct (200) may include a flexible duct (220) connectable to the second opening (160), and a main duct (230) connectable between the flexible duct (220) and the negative pressure generator (210).

[0075] Specifically, the degree to which the flexible duct (220) extends in its longitudinal direction and the degree to which it bends in its lateral direction can be freely adjusted. Accordingly, depending on the arrangement relationship between the device (100) and the exhaust duct (200), the position of the second opening (160), etc., the method of connecting the flexible duct (220) to the second opening (160) of the housing (110) can be flexibly adjusted, and gas can be smoothly exhausted.

[0076] In addition, by connecting the flexible duct (220) to the negative pressure generator (210) via the main duct (230), negative pressure is applied within the housing (110), specifically, to the gap (G) between the housing (110) and the container (120), so that gas generated from the refrigerant (C) within the container (120) can be exhausted sequentially through the plurality of holes (123), the gap (G), the fourth opening (122), the second opening (160), the flexible duct (220), and the main duct (230).

[0077] Additionally, referring to FIG. 5, the exhaust duct (200) may be positioned at the lower portion of the working space. Alternatively, the exhaust duct (200) may be positioned at the upper portion of the working space. The arrangement of the exhaust duct (200) is not limited thereto, and may be arranged in various ways within the scope of the problem to be solved by the present invention.

[0078] In addition, the system (10) according to one embodiment of the present disclosure may include a concentration sensor that measures the concentration of a gas (e.g., carbon dioxide generated from dry ice) generated from the coolant (C). For example, the concentration sensor may be attached near the first opening (150) of the housing (110) or the third opening (121) of the container (120). The concentration sensor may be configured to measure the concentration of a gas (e.g., carbon dioxide generated from dry ice) generated from the coolant (C) and generate an alarm when the concentration of carbon dioxide exceeds a predetermined concentration. Accordingly, when carbon dioxide is generated at a level that affects the health and safety of a worker, an alarm may be generated to cause the worker to stop working or ventilate the work space.

[0079] In addition, according to one embodiment of the present disclosure, the intensity of the negative pressure generated by the negative pressure generator (210) may be adjusted according to the concentration of carbon dioxide measured by the concentration sensor described above. Specifically, the intensity of the negative pressure generated by the negative pressure generator (210) may be configured to increase as the concentration of carbon dioxide measured by the concentration sensor increases. In addition, when the concentration of carbon dioxide measured by the concentration sensor described above is equal to or greater than a predetermined concentration, the intensity of the negative pressure generated by the negative pressure generator (210) may be configured to increase as the degree to which the predetermined concentration is exceeded increases. Accordingly, the concentration of carbon dioxide in the work space is prevented from exceeding the predetermined concentration, and even if it is equal to or greater than the predetermined concentration, the possibility of exposure to the worker can be minimized by more strongly exhausting the carbon dioxide in the container (120). The configuration of the concentration sensor is not limited thereto, and may be configured in various ways within the scope of the problem to be solved by the present invention.

[0080] While the technical concepts of the present disclosure have been described through various embodiments, it should be understood that the technical concepts of the present disclosure encompass various substitutions, modifications, and variations that can be made within the scope of those skilled in the art to which the present disclosure pertains. Furthermore, it should be understood that such substitutions, modifications, and variations are encompassed within the scope of the appended claims.

Claims

1. A housing configured to enable extraction of a refrigerant and to which an exhaust duct can be connected; A container disposed inside the housing and configured to store the refrigerant; A loading platform arranged inside the container and configured to load the refrigerant; and A lifting device is disposed on the lower side of the loading platform and configured to raise and lower the loading platform within the container. A device in which gas generated from the refrigerant stored in the container is exhausted through the exhaust duct connected to the housing.

2. In paragraph 1, The above housing, a first opening configured to enable the refrigerant to be taken out from the housing; and a second opening configured to enable connection of the exhaust duct to the housing; A device wherein the first opening and the second opening are respectively positioned on opposite sides of the housing.

3. In paragraph 2, The above container, a third opening positioned opposite the first opening; and Including a fourth opening positioned opposite the second opening, A device wherein the third opening and the fourth opening are respectively positioned on opposite sides of the container.

4. In paragraph 3, A device, wherein at least one side of each of the container and the loading platform has a shape of a perforated plate including a plurality of holes.

5. In paragraph 4, A gap is provided between the container and the housing, and between the loading platform and the housing, A device wherein the gas is exhausted through the plurality of holes, the gap, and the exhaust duct.

6. In paragraph 4, A device wherein each of the plurality of holes has the same size.

7. In paragraph 4, A device wherein the size of each of the plurality of holes is different depending on the distance from the second opening or the fourth opening.

8. In paragraph 1, A device further comprising a moving device disposed on the lower side of the housing and configured to move the housing.

9. In paragraph 1, Further comprising a sensor for measuring the weight of the refrigerant loaded on the loading platform; The above lifting device is a device configured to control the level of lifting of the loading platform according to the weight of the refrigerant measured by the sensor.

10. In paragraph 9, The above lifting device, The loading platform is lowered according to the amount of increase in the weight of the refrigerant measured by the sensor, A device configured to raise the loading platform according to the amount by which the weight of the refrigerant measured by the sensor decreases.

11. In paragraph 1, A device, wherein the above-mentioned refrigerant comprises dry ice.

12. Exhaust duct; A negative pressure generator connected to the exhaust duct and configured to generate negative pressure within the exhaust duct; A housing configured to enable extraction of a refrigerant and capable of connecting the exhaust duct; A container disposed inside the housing and configured to store the refrigerant; A loading platform arranged inside the container and configured to load the refrigerant; and A lifting device is disposed on the lower side of the loading platform and configured to raise and lower the loading platform within the container. A system in which gas generated from the refrigerant stored in the container is exhausted through the exhaust duct connected to the housing by the negative pressure generated by the negative pressure generator.

13. In paragraph 12, The above housing, a first opening configured to enable the refrigerant to be taken out from the housing; and a second opening configured to enable connection of the exhaust duct to the housing; A system wherein the first opening and the second opening are respectively positioned on opposite sides of the housing.

14. In paragraph 13, The above exhaust duct, a flexible duct connectable to the second opening; and A system comprising a main duct connectable between the flexible duct and the negative pressure generator.

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