Protective device for a container, protective arrangement and method for connecting a protective device to a container

Abstract

The invention relates to a protection device (14) for a container (12) for receiving a substance, in particular a powdery substance, wherein the protection device (14) has a flexible housing (32) enclosing a housing space (38) and comprising a first housing opening (34), and a first tubular main body (40) connected to the housing (32) in the region of the first housing opening (34) and having a first mating container connection unit (46), a main first end (42) and a main second end (44), wherein the first tubular main body (40) is connected to the housing (32) in such a way that the main first end (42) ends in the first housing opening (34) or projects into the housing space (38), and the protection device (14) can be connected to a first container connection unit (24) by means of the first mating container connection unit (46) in such a way that the housing (32) can be introduced into the interior (18). The invention further relates to a protection arrangement (10) comprising such a container and such a protection device (14).

Description

Technical Field

[0001] This invention relates to a protective device for a container used to hold substances, particularly powdery substances. The invention further relates to a protective arrangement including such a container and such a protective device. Background Technology

[0002] These containers have walls surrounding an interior space that is accessible through an opening. For example, they are used for the storage and transport of substances, particularly those used in chemical reactions. They are also used for mixing two or more substances. In many cases, these substances are toxic materials that must be handled according to so-called OEB 5 or OEB 6 standards (“Occupational Exposure Bands”). According to OEB 5 standards, the maximum concentration of a particular substance can be equivalent to 1 μg / m³. 3 Furthermore, according to the OEB 6 standard, the maximum equivalent is 200 ng / m³. 3 .

[0003] Once such a container is filled with material, the container opening is closed by a cap, and the material is transported to the location of the reactor to which it was transferred. For movement, the container is often clamped into a movable frame. Once the container is near the reactor, the container opening is opened, and the container is attached to the reactor, allowing material to be transferred into it. For this purpose, the container housed in the holder is frequently rotated so that the container opening faces downwards, allowing gravity to be used during emptying. Once the container is completely empty, it is closed again, and can subsequently be filled with another material.

[0004] However, if the substance is highly toxic, the following special conditions must be met: as mentioned, it must be ensured that only a maximum amount of the substance can escape into the environment. Therefore, the opening of the container and its connection to the reactor must be carried out within an isolator, requiring corresponding equipment and time investment. Furthermore, residues of the substance may remain in the container, for example, due to adhesive forces. Therefore, the possibility of excessive amounts of substance escaping into the environment during further filling cannot be ruled out. Additionally, residues of the substance may cause cross-contamination when the container is filled with different substances. Therefore, for safety reasons, the container is cleaned after emptying, and the amount of substance remaining in the container is subsequently checked. The container can only be reused in the above manner if the detectable amount is sufficiently small. After a period of time, during which the container is not used and occupies space, until the inspection is completed. Therefore, such containers are particularly uneconomical to manage when storing and transporting toxic substances. Summary of the Invention

[0005] The objective of embodiments and / or aspects of the present invention is to provide a protective device and arrangement that enables the more economical management of containers of the above types and simplifies their handling without compromising operational safety, using simple and inexpensive components.

[0006] This objective is achieved by the features specified in claims 1, 10, and 15. Advantageous embodiments are the subject of the dependent claims.

[0007] Embodiments of the present invention relate to a protective device for a container used to hold substances, particularly powdery substances, wherein the container...

[0008] - It has a wall that surrounds an interior space and has a first container opening through which the interior space can be accessed; and

[0009] - Includes a first container connector unit that surrounds a first container opening, and connector components that can be connected to the container via the first container connector unit; and

[0010] - Protective devices

[0011] ○ Includes a flexible housing, the flexible housing surrounding the housing space and including a first housing opening; and

[0012] ○ It has a first tubular component, which is connected to the housing in the area of ​​the first housing opening and has a first container mating connector unit, a main first end, and a main second end, wherein

[0013] - The first tubular component is connected to the housing such that the main first end terminates in or protrudes into the housing space, and

[0014] - The protective device can be connected to the first container connector unit by means of the first container mating connector unit, so that the housing can be introduced into the inner space.

[0015] The flexible shell may include a plastic film, such as polyethylene, adapted to the shape of the wall. The shell is introduced into the interior space of the container through a first container opening and connected to a first container connector unit via a first container mating connector unit. Substance is introduced into the shell through the main second end and through a first tubular member. Due to the fact that the flexible shell adapts to the shape of the wall, the interior space of the container can be almost entirely used to hold the substance. The flexible shell contacts the wall in its filled state. Once the flexible shell is filled with substance, the tubular member can be closed at the main second end. The container can now be stored and transported together with the protective device and the substance contained therein. The tubular member is connected to the reactor at the main second end for transferring the substance into the reactor, and the substance is transferred into the reactor substantially in the manner already described. Once the flexible shell is completely emptied, the protective device is closed at the main second end and separated from the container, and can be disposed of, for example, by incineration.

[0016] Because the protective device prevents any direct contact between the substance and the container, no residue remains in the container after the protective device is removed. This eliminates the need for container cleaning, allowing the container to be directly connected to another protective device in the same manner and refilled. It also eliminates the laborious cleaning and waiting process for inspection results, making container management more economical compared to not using a protective device.

[0017] The first tubular component specifically connects to the adapter, as the first container mating connector unit complements the container connector unit, while the main second end can be designed with considerable freedom to connect to the desired connector unit, such as a pipe or conduit.

[0018] According to another embodiment, the container may include

[0019] - A second container opening, through which the internal space can be accessed; and

[0020] - A second container connector unit surrounds the second container opening, and another connector component can be connected to the container through the second container connector unit.

[0021] The flexible housing of the protective device can have

[0022] -Second shell opening, and

[0023] - A second tubular component, which is connected to the housing in the area of ​​the second housing opening and has a second container mating connector unit, a secondary first end, and a secondary second end, wherein

[0024] - The second tubular component is connected to the housing such that the secondary first end terminates in or protrudes into the housing space of the second housing; and

[0025] - The protective device can be connected to the second container connector unit by means of the second container mating connector unit, so that the housing can be introduced into the inner space.

[0026] In this embodiment, the container has two openings. This simplifies filling and emptying because it eliminates the need for container rotation, and the force of gravity acting on the material can still be advantageously used during emptying. Furthermore, the first and second container connector units can be of different sizes and can be designed differently, thereby increasing flexibility and simplifying container handling.

[0027] According to another embodiment

[0028] - The first container mating connector unit may have a flange-shaped radial first extension for placement on the first locking member, and / or

[0029] - The second container mating connector unit may have a flange-shaped radial second extension for placement on the second locking member.

[0030] A first radial extension provides an undercut, through which a first locking member and / or a second locking member can introduce a connecting force to the first or second tubular member, which can then be fastened to the container by the connecting force. The first or second locking member can be formed as a cap nut, a top, or a tension lock, with only a few examples listed in a non-exclusive manner. It is possible to use locking members formed differently using the first or second radial extension. Therefore, it is possible to flexibly respond to any corresponding needs. The radial extension does not necessarily have to project radially over the tubular member, but can actually be formed, for example, by a recess in which a locking member can engage. In this case, the radial extension can be understood as a radially extending section.

[0031] In another developed embodiment,

[0032] - The first container mating connector unit can be formed in the manner of a first three-clamp connector; and / or

[0033] - The second container mating connector unit can be configured as a second triple clamp connector.

[0034] Triple-clamp connectors are particularly common in pharmaceutical and biotechnology applications. Therefore, the probability of existing containers having triple-clamp connectors is very high. Consequently, protective devices can be used for such containers without adaptation. Triple-clamp connectors are standardized, for example, in preferred versions of ISO 2852 1993-06 (published in June 1993 and simultaneously cancelled) or DIN 31676. The two elements to be connected, typically tubular or tubular components, each have flanges at their respective ends to be connected, the diameter and inclination of which are fixed in a specified standard. In this case, a locking member is formed as a triple-clamp fastener engaging around the two flanges in the connected state, and the elements are connected to each other. Corresponding grooves are arranged in the contact surfaces of the flanges, and O-ring seals can be placed therein to seal the tubing. In the case of this invention, it is possible to provide such flanges at the corresponding ends of the tubular components, which can be fastened to the container. However, it is also possible to design the tubular components such that they are placed in the grooves at the corresponding ends, the grooves themselves intended for O-ring seals. The second flange is then formed from a separate component. The three-clamp fastener can be formed, for example, from the coupling unit disclosed in WO 2017 / 046220. However, it is also possible to design container connectors and container mating connector units to provide different clamping connectors.

[0035] In another developed embodiment,

[0036] - The first connecting unit may be arranged at the main second end of the first tubular component to connect the connector component, and / or

[0037] - The second connecting unit may be arranged at the secondary second end of the second tubular component to connect the connector component.

[0038] In this embodiment, the primary second end and / or the secondary second end may be connected, for example, to a pipeline, conduit, etc. In the connected state, substances can be reliably transferred into the flexible housing. Uncontrolled release of the pipeline or conduit from the tubular component is prevented, and therefore uncontrolled escape of substances into the environment is prevented.

[0039] In another developed embodiment,

[0040] - The first connecting unit may be formed in the manner of a first three-clamp connector; and / or

[0041] - The second connecting unit can be formed in the manner of a second and third clamp connector.

[0042] As mentioned, triple clamp connectors are particularly frequently used in medical and biotechnology applications. Therefore, it is possible to utilize trial-and-tested connectors with good availability.

[0043] In another embodiment,

[0044] - The connector component connected to the first connection unit may be formed in a manner that constitutes a first enclosure interface; and / or

[0045] - The connector component connected to the second connection unit can be formed in the manner of a second enclosure interface.

[0046] For example, such containment interfaces are known from patent application WO 2016 / 142432 A1. These containment interfaces can be connected to correspondingly designed containment mating interfaces. Their specific characteristic is that they can only be opened and closed in the connected state. Therefore, two closed spaces can be connected to each other such that they are open only to each other and not to the environment. Thus, substances can be transferred into the container without any risk of leakage into the environment during transfer. Simultaneously, substances from the environment are prevented from moving into the substance and contaminating it. Upon separation, no substance adheres to surfaces accessible from the outside. Therefore, toxic substances can also be transferred from one container to another without posing any risk to the substance itself or the environment.

[0047] According to another embodiment, the first tubular component and / or the second tubular component are made of a flexible material. This design is suitable for containers with two container openings. The protective device can also be fully guided through the container using a first container mating connector unit and a second container mating connector unit, and, depending on the design, guided from one side using a containment interface, passing through the second container opening. The protective device can then be connected to the first container connector unit and the second container connector unit. When the first container connector unit and the first container mating connector unit are formed as a first three-clamp connector, each of the first container connector unit and the first container mating connector unit has two radially outwardly projecting flanges. When the protective arrangement is guided through the second container opening, the first container mating connector of the first tubular component abuts the container wall seen from the interior space in the area of ​​the first container connector unit. However, the first container mating connector must be connected to the container connector unit from the outside for proper connection. For this purpose, the first container mating connector unit must guide the container connector unit from the inside, which is not easily achieved with the rigid design of the first tubular component. In this embodiment, the first container mating connector unit can deform during the guiding passage, so that it can be subsequently connected to the container connector unit from the outside.

[0048] The protective device can be manufactured, particularly in cleanrooms, and when it has a containment interface, it can be delivered via a closed containment interface. The containment interface opens only when material is transferred into the housing space. The housing space contributes to the level of purity achieved within the cleanroom, thus largely eliminating contamination originating from the protective device.

[0049] Embodiments of the present invention relate to a protective arrangement comprising:

[0050] - A container for holding substances, especially powdery substances, said container having

[0051] A wall, which surrounds an interior space and has a first container opening through which the interior space can be accessed; and

[0052] A first container connector unit surrounds a first container opening, and connector components can be connected to the container via the first container connector unit; and

[0053] - A protective device according to one of the previously discussed embodiments, wherein the protective device is connected to the first container connector unit by means of a first container mating connector unit, such that the housing can be introduced into the inner space.

[0054] The technical effects and advantages achievable using the proposed protective arrangement correspond to those already discussed regarding the protective device of the present invention for containing substances. In summary, it must be noted that the laborious cleaning of the container and subsequent checks for any remaining substance in the container can be eliminated. Therefore, the container can be managed more economically.

[0055] Another developed embodiment provides

[0056] - The first container connector unit and the first container mating connector unit are configured to use a first locking component; and / or

[0057] - The second container connector unit and the second container mating connector unit are configured to use the second locking component.

[0058] In order to enable the use of locking components, they must be able to introduce force into the first and / or second tubular components and into the container. For example, for this purpose, the first and / or second tubular components may have a radially first or radially second extension for providing an undercut. However, the undercut may also have a recess or a hook, for example. The first and / or second locking components can introduce a connecting force into the first or second tubular component through this undercut, by which the first or second tubular component is fastened to the container. The first or second locking component may be formed as a cap nut, a top, or a tension lock, to name only a few examples in a non-exclusive manner. It is possible to use locking components formed very differently using the first or second radial extension. Therefore, it is possible to flexibly respond to the corresponding needs that exist.

[0059] According to another embodiment

[0060] - The first container connector unit and the first container mating connector unit are formed in the manner of a first clamping connector, and / or

[0061] - The second container connector unit and the second container mating connector unit are formed in the manner of a second clamp connector.

[0062] In particular, compared to screw-type connectors, clamp connectors are characterized by their faster and simpler setup and release. An aspect of clamp connectors that deserves special mention is represented by triple-clamp connectors. Triple-clamp connectors are especially frequently used in medical and biotechnology applications. Therefore, the probability of existing containers having triple-clamp connectors is very high. Consequently, protective devices can be used on such containers without adaptation.

[0063] In another developed embodiment

[0064] -The first container connector unit may have a first inner diameter;

[0065] -The second container connector unit may have a second inner diameter; and

[0066] - The first connecting unit may have a first outer diameter.

[0067] -The first outer diameter is smaller than the first inner diameter and the second inner diameter.

[0068] This design is suitable for containers with two openings. Typically, the first inner diameter corresponds to the diameter of the first container opening, and the second inner diameter corresponds to the diameter of the second container opening. The protective device can be fully guided through the container using the first and second container mating connector units, and, depending on the design, also guided from one side using a containment interface, passing through the second container opening. The protective device can then be connected to the first and second container connector units. The protective device can be manufactured, particularly in cleanrooms, and when the protective device has a containment interface, it can be delivered using a closed containment interface. The respective containment interface opens only when material is transferred into the housing space. The housing space contributes to the level of purity achieved in cleanrooms, largely eliminating contamination originating from the protective device. A requirement for this is that the maximum outer diameter of the first containment interface does not exceed the first outer diameter.

[0069] According to another embodiment, the container has a connector that opens into the interior space and establishes fluid communication with the space between the connector and the wall and the shell. A vacuum pump can be connected to the connector to generate a negative pressure or vacuum between the wall and the shell. The shell is thus pulled towards the wall of the container. The connector may include a closure element that, when closed, maintains the previously generated negative pressure or vacuum. The shell remains in contact with the wall for a considerable period until the vacuum or negative pressure is eliminated by opening the closure element. On the one hand, the shell is pulled towards the wall, thereby preventing the formation of folds and thus dead spaces. The volume of the container's interior space is used in the best possible way. On the other hand, fixing the shell relative to the wall prevents unwanted slippage and breakage of the shell. To efficiently prevent fold formation, it appears suitable to provide more than one connector through which fluid can be removed from the space between the wall and the shell.

[0070] Alternatively, for example, filtered air can be introduced into the housing space by means of a pump, thereby establishing overpressure in the flexible housing. For this purpose, a filter can be provided through which air is pumped into the housing space. In this case, air in the space between the wall and the housing is displaced by the expansion housing via a connector into the container's environment until the flexible housing contacts the wall. To prevent the flexible housing from folding upon release of overpressure, the closure element can be closed before release. The flexible housing can then be filled and emptied at atmospheric pressure or even under a small negative pressure.

[0071] Embodiments of the present invention relate to a method for connecting a protective device according to one of the previously discussed embodiments, the protective device having a container having a wall surrounding an interior space and having a first container opening through which the interior space can be accessed, and the container including a first container connector unit surrounding the first container opening, and connector components being connected to the container through the first container connector unit. The method includes the following steps:

[0072] - The protective device is introduced into the interior space through the first container opening; and

[0073] - The protection device is connected to the first container connector unit by means of the first container mating connector unit.

[0074] In the connected state, the described protective arrangement is provided, wherein the flexible shell is secured to the container. The advantages and technical effects achievable using the method correspond to those already described for the protective device and protective arrangement. Specifically, it should be noted that cleaning of the container after the flexible shell is removed can be omitted because substances that can be introduced into the shell space do not come into contact with the container.

[0075] According to another embodiment, the container has a connector that opens into an interior space and can establish fluid communication with the space between the connector and the wall and the shell, the method comprising the following steps:

[0076] - Use a connector to apply negative pressure in the space between the wall and the housing.

[0077] The shell is pulled towards the inner surface of the container wall due to negative pressure and is fixed there. The volume of the container's internal space and the shell space are then largely the same. On the one hand, this ensures that almost the entire volume of the container can be used. On the other hand, it ensures that the flexible shell is fixed in the container so that it does not slip during operation. It is even possible to apply negative pressure in the shell space, as long as the negative pressure is less than the negative pressure between the wall and the shell. The negative pressure in the shell space simplifies the filling and emptying of the shell space.

[0078] As mentioned, the flexible shell is pulled towards the inner surface of the container wall when negative pressure is applied. Therefore, the flexible shell expands. Air must be able to flow into the shell space to make this expansion possible. For this purpose, at least one ventilation unit can be provided through which air flows into the expanding shell. A filter can be arranged in the ventilation unit to filter the flowing air, so that the shell space remains sterile.

[0079] According to another embodiment, the container has a connector that opens into an interior space and can establish fluid communication with the space between the connector and the wall and the shell, the method comprising the following steps:

[0080] - Apply overpressure to the housing space using the first tubular component, and

[0081] - Fluid is discharged from the space between the wall and the housing through the connector.

[0082] In this embodiment, fluid, particularly air, can be introduced into the shell space, thereby pressing the flexible shell against the inner wall of the container. The shape of the flexible shell also adapts to the shape of the inner space, allowing almost complete use of the inner space. When the flexible shell expands, the fluid (typically air) in the space between the wall and the shell is discharged through a connector. Air can be conducted through a corresponding filter if the shell space must be kept sterile. As mentioned, a closure element can be arranged downstream. Once fluid has been introduced into the shell space and the flexible shell is positioned against the inner surface of the wall, the closure element can close. When overpressure in the shell space is released, the flexible shell remains against the wall. In this case, the flexible shell is also secured within the container. Alternatively, in this case, it is possible to apply a specific negative pressure in the shell space, thereby providing the aforementioned advantages during the filling and emptying of the flexible shell. Attached Figure Description

[0083] Exemplary embodiments of the invention are explained in more detail below with reference to the accompanying drawings. [The drawings illustrate...]

[0084] Figure 1 Basic cross-sectional representation of a first embodiment of the protective arrangement according to the present invention;

[0085] Figure 2 Figure 1 A basic magnified representation of the area marked A (not to scale);

[0086] Figure 3 Figure 1 A basic magnified representation of area B marked in the middle (not to scale);

[0087] Figure 4 Cross-sectional view of a second embodiment of the protective device according to the present invention;

[0088] Figure 5 Figure 4 A magnified representation of region C marked in the middle;

[0089] Figure 6 Figure 4 A basic magnified representation of area D marked in the middle (not to scale);

[0090] Figure 7 A cross-sectional view of a second embodiment of the protective device according to the present invention in the first state;

[0091] Figure 8 In the second state Figure 7 The second embodiment of the protective arrangement shown;

[0092] Figure 9 Figure 8 A magnified representation of region E marked in the middle;

[0093] Figure 10 Figure 8 A basic magnified representation of the marked area F (not to scale);

[0094] Figure 11 Partial cross-sectional view of a third embodiment of the protective device according to the present invention;

[0095] Figure 12 Figure 11 A magnified representation of the marked region G;

[0096] Figure 13 A partial cross-sectional view of a third embodiment of the protective arrangement according to the present invention; and

[0097] Figure 14 Figure 13 A magnified representation of the marked area H. Detailed Implementation

[0098] exist Figure 1 The image shows a basic cross-sectional representation of a first embodiment of the protective arrangement 101 according to the present invention. Figure 1 Areas A and B as defined in the text are not drawn to scale, and... Figure 2 and Figure 3 The image shown is essentially enlarged. The protective arrangement 101 includes a container 12 and a protective device 141, according to a first embodiment.

[0099] Container 12 has a wall 16 surrounding an inner space 18. In the illustrated embodiment, container 12 is equipped with a first container opening 20 and a second container opening 22 disposed opposite to it, each container opening having a circular cross-section and being concentrically arranged relative to a longitudinal axis L defined by container 12. The inner space 18 can be accessed through the first container opening 20 and the second container opening 22. The first container opening 20 is surrounded by a first container connector unit 24, and the second container opening 22 is surrounded by a second container connector unit 26. A first connector component can be fastened to the first container connector unit 24, and a second connector component can be fastened to the second container connector unit 26, as will be seen in more detail below. Furthermore, container 12 includes a connector 28 that penetrates the wall 16 and thus communicates with the inner space 18. Connector 28 can be selectively opened and closed by a closure element 30.

[0100] Furthermore, as mentioned, the protective arrangement 101 includes a protective device 141 having a flexible housing 32. The flexible housing 32 has a first housing opening 34 and a second housing opening 36, each of which communicates with a housing space 38 surrounded by the flexible housing 32.

[0101] Including the main first end 42 and the main second end 44 (see details) Figure 2The first tubular component 40 is arranged in the area of ​​the first housing opening 34. The first tubular component 40 is located at the main first end 42 (see...). Figure 2 The first tubular member 40 is hermetically connected to the flexible housing 32 within the area of ​​the tubular member 40. In the illustrated embodiment, the main first end 42 is designed such that the first tubular member 40 protrudes slightly into the housing space 38. However, it is also possible to design the main first end 42 such that it terminates at the first housing opening 34 and therefore does not protrude into the housing space 38. This can be similarly achieved from... Figure 2 As can be seen, a first tubular member 40 forms a first container mating connector unit 46 in the region of the main first end 42. The first container mating connector unit 46 is formed such that the first tubular member 40 can be fastened to the container 12 using the first container connector unit 24. For this purpose, in the illustrated embodiment, the first connector member is formed as the first tubular member 40.

[0102] A first tubular component 40 forms a first connecting unit 48, and another first connector component can be fastened to the first tubular component 40 at a main second end 44 via the first connecting unit. In the illustrated first embodiment, the other first connector component is designed as a first enclosure interface 50. For example, such enclosure interfaces are known from WO 2016 / 14232A1 and can be connected to a correspondingly designed mating interface, which will be viewed in more detail below (see...). Figure 8 ).

[0103] The first container mating connector unit 46 may be formed as a first triple clamp connector 52. The first container connector unit 24 is formed to complement the first container mating connector unit 46, such that they are formed as a first triple clamp connector 54 in the connected state. However, it is also possible to design the first container connector unit 24 and the first container mating connector unit 46 such that they provide clamp connectors with different designs.

[0104] The first connecting unit 48 is also formed as a first three-clamp connector 56, such that the connection between the first tubular component 40 and the first enclosure interface 50 is also implemented by means of a three-clamp connector. The three-clamp connector is standardized, for example, in the preferred data valid versions of ISO 2852 1993-06 (published in June 1993 and simultaneously cancelled) or DIN 31676.

[0105] Available from Figure 2It is understood that the first tubular component 40 is designed with an O-ring at its main first end 42, allowing it to be placed into a recess in the triple clamp flange of the first container connector unit 24. The second triple clamp flange of the first triple clamp connector 54 is formed by a separate assembly and similarly has the recess into which the first tubular component 40 engages at its main first end 42. The first tubular component 40 is secured to the container 12 in the region of its main first end 32 by a main first triple clamp fastener 51.

[0106] In contrast, the first tubular component 40 forms a first triple clamp flange of the first connecting unit 48 at its main second end 44. The first enclosure interface 50 forms a second triple clamp flange of the first connecting unit 48. The first tubular component 40 is fastened to the first enclosure interface in the region of its main second end 44 by a secondary first triple clamp fastener 51.

[0107] A second tubular member 58, having a secondary first end 60 and a secondary second end 62, is arranged in the area of ​​the second housing opening 36. The second tubular member 58 is connected to the flexible housing 32 in principle in the same manner as described with respect to the first tubular member 40. The second tubular member 58 also correspondingly has a second container mating connector unit 64 and a second connection unit 66. The flexible housing 32 can be connected to the second container connector unit 26 of the container 12 via the second container mating connector unit 64. Another second connector member, designed as a second containment interface 68, can be connected to the second tubular member 58 via the second connection unit 66.

[0108] The second container mating connector unit 64 is designed as a second triple clamp connector 70, wherein the second container connector unit 26 is designed to complement the second container mating connector unit 64. In the connected state, they form a second triple clamp connector 72.

[0109] The second connection unit 66 is also formed as a second triple clamp connector 74, so that the connection between the second tubular component 58 and the second enclosure interface 68 is also implemented by means of the triple clamp connector.

[0110] The second tubular component 58 is fastened to the container 12 in the area of ​​its secondary first end 32 by a primary second third clamp fastener 75. Furthermore, the second tubular component 58 is fastened to the second containment interface 68 in the area of ​​its secondary second end 62 by a secondary second third clamp fastener 77.

[0111] The first tubular component 40 is made of a flexible material, and it would also be appropriate to make the second tubular component 58 from the same flexible material.

[0112] For details, please refer to Figure 1As can be seen, the first container connector unit 24 has a first inner diameter d corresponding to the diameter of the first container opening 20. i1 The second container connector unit 26 has a second inner diameter d corresponding to the diameter of the second container opening 22. i2 The first connecting unit 48 has a first outer diameter d. a1 The first outer diameter d a1 Smaller than the first inner diameter d i1 Second inner diameter d i2 Similarly, it can be seen from... Figure 1 It is recognized that the maximum outer diameter of the first confining interface 50 is equal to or less than the first outer diameter d. a1 As mentioned, the first coupling unit 48 is designed to include a three-pronged clamp connector with a releasable fastener. This is based on the determination of the first outer diameter d. a1 These fasteners are not considered at the time.

[0113] The protective arrangement 101 operates as follows: the flexible housing 32, the first tubular component 40, and the second tubular component 58 can be manufactured in the cleanroom and connected to each other thereon. Alternatively, they can be manufactured outside the cleanroom, connected to each other, and subsequently cleaned multiple times in the cleanroom as required by the respective application. The first containment interface 50 and the second containment interface 68 can be connected to the first tubular component 40 or the second tubular component 58 in the same manner as described above, and can optionally be cleaned. The first containment interface 50 and the second containment interface 68 are in a closed state here, so that the housing space 38 is hermetically sealed. The closed protective device 141 can then be removed from the cleanroom and folded together, so that the closed protective device can be stored and transported in a space-saving manner.

[0114] To introduce the protective device 141 into the container 12, the first containment interface 50 is guided through the second container opening 22 and the interior space 18 of the container 12 until the first containment interface protrudes slightly beyond the container 12 through the first container opening 20. The first containment interface 50 can now be grasped. From a certain point, the first container mating connector unit 46 abuts the wall 16 of the container 12 from the inside in the area of ​​the first container opening 20. The first tubular member 40 then protrudes slightly beyond the container 12 above the first container opening 20. As mentioned, the first tubular member 40 is made of a flexible material. Therefore, the first tubular member 40 can be grasped and deformed to such an extent that the first container mating connector unit 46 can be guided to the outside through the first container opening 20. If the first tubular member 40 is released again, the first tubular member 40 returns to its original shape, allowing the first tubular member 40 to be connected to the first container connector unit 24 using the first container mating connector unit 46.

[0115] The second container mating connector unit 64 of the second tubular component 58 contacts the second container connector unit 26, and the second tubular component 58 is then connected to the container 12.

[0116] As mentioned, container 12 has a connector 28 that can be selectively opened or closed via a closure element 30. It is preferable that the closure element 30 is already open when the protective device 141 is introduced into container 12; however, this is not mandatory. The vacuum pump is now connected to connector 28 and opened using the open closure element 30, causing a substantial amount of air present between the flexible housing 32 and the wall 16 of container 12 to be removed. Due to the resulting negative pressure, the flexible housing 32 is pulled towards the wall 16, causing the flexible housing to make substantial contact with the wall 16. Therefore, the volume of the housing space 38 largely corresponds to the volume of the internal space of container 12. The closure element 30 can now be closed, and the vacuum pump can be removed from connector 28.

[0117] Depending on the application, a first containment mating interface, such as one connected to a pipeline or conduit (not shown), may be connected to a first containment interface 50. The first containment interface 50 and the first containment mating interface are now open, and material, typically in powder form, can be introduced into the housing space 38. Once filling has ceased, the first containment interface 50 and the first containment mating interface close and separate from each other. In this way, the material has been transferred into the housing space 38 without contamination, and the material has not come into direct contact with the container 12. For example, the container 12 can now be used for storage and transport.

[0118] To empty container 12, the container may be positioned, for example, above the reactor, and the connection may be established by means of a second containment mating interface (not shown) connected to a second containment interface 68. The second containment interface 68 and the second containment mating interface are now open, allowing material to flow out of the shell by gravity. A slight negative pressure may be applied in the shell space 38 by means of an auxiliary device. Once no more material flows out of container 12, the second containment interface 68 and the second containment mating interface close and separate from each other. Container 12 can now be removed from the reactor. Protective device 141 is then removed from container 12, with the procedure performed in reverse order of the introduction and connection described above. It must be noted that closing element 30 must be opened. Alternatively, one of the tubular components 40, 58 may also be released from container 12 to such an extent that ambient air can flow into container 12. Protective device 141 can now be disposed of together with the first tubular component 40, the first containment interface 50, the second tubular component 58, and the second containment interface 68, particularly by incineration. Because container 12 does not have any direct contact with the substance, it can be immediately reused in the manner described above. This avoids the laborious cleaning required for conventional containers. Specifically, different substances can be introduced into protective device 141 in the next application without any risk of cross-contamination.

[0119] Alternatively, it is possible to do the following: instead of applying negative pressure in the space between the flexible shell 32 and the wall 16 of the container 12, overpressure can be created in the shell space 38, particularly by blowing air into the shell space 38. For this purpose, a filter can be arranged such that air must pass through the filter before entering the shell space 38. Contaminants, especially particles, are thus trapped. The shell space 38 can therefore be kept clean, and contamination can be avoided. The closing element 30 is opened here, allowing air in the space between the flexible shell 32 and the wall 16 to escape from the inner space 18. The flexible shell 32, expanded due to the overpressure, is located at the wall 16 from the inside and thus almost takes the shape of the inner space 18. The closing element 30 then closes. However, if the overpressure in the shell space 38 is released, for example to introduce material into it, the flexible shell 32 remains in contact with the wall 16. It is even possible to apply a small negative pressure in the shell space 38 without the flexible shell 32 collapsing. To remove the protective device 141, the closing element 30 is opened, allowing ambient air to flow into the interior space 18. The protective device 141 can now be removed from the container 12.

[0120] With the housing space 38 to remain sterile, before negative or overpressure is applied, the first containment mating interface 80 must be connected to the first container containment interface 50, and / or the second containment mating interface 82 must be connected to the second containment interface 68 (see [link to relevant documentation]). Figure 8At least one of the interconnected enclosure interfaces and enclosure mating interfaces is open, allowing air to flow into the housing space 38 regardless of whether air is drawn into the housing space 38 when a negative pressure is applied in the space between the flexible housing 38 and the wall 16, or is supplied into the housing space 38 when an overpressure is applied. The air flowing into the housing space 38 is filtered to keep the housing space 38 sterile. If the overpressure or negative pressure is released, the air flowing out of the housing space is similarly filtered again to prevent any residue of the material contained in the housing space from moving into the environment.

[0121] Figure 4 A cross-sectional view showing a second embodiment of the protective device 142 according to the present invention; Figure 5 exhibit Figure 4 The magnified representation of region C marked in the middle, and Figure 6 exhibit Figure 4 A basic enlarged representation of area D marked in the center (not to scale). Protective device 141 is shown as isolated from container 12. The basic design and manner of using protective device 142 correspond to those basic designs and manners already described for the first embodiment of protective arrangement 101.

[0122] Figure 7 A cross-sectional representation of a second embodiment of the protective arrangement 102 according to the invention in the first state is shown, and... Figure 8 The protective arrangement described herein is in its second state. Figure 9 exhibit Figure 8 The magnified representation of region E marked in the middle, and Figure 10 exhibit Figure 8 The area F marked in the middle is shown in a basic enlarged representation (not to scale). The protective device 142 is shown here in relation to... Figure 1 The same method of description is introduced into container 12. For example, it can be seen from... Figure 7 and Figure 8 The comparison shows that the first containment interface 50 is connected to the first containment mating interface 80, and the second containment interface 68 is connected to the second containment mating interface 82. For example, the first containment mating interface 80 and the second containment mating interface 82 can be connected to a pipeline or conduit not shown here. As mentioned, the first containment interface 50 and the first containment mating interface 80 can be opened and closed together in the connected state, allowing substances to be introduced into the housing space 38 and removed from the housing space again without contamination, provided that the amount of substances allowed to enter the environment does not exceed the permissible amount. This also ensures the separation of the first containment mating interface 80 from the first containment interface 50. The same applies to the second containment interface 68 and the second containment mating interface 82.

[0123] A conduit (not shown) through which air can be introduced into the housing space 38 may be connected to the first containment mating interface 80. To prevent contamination, a first filter 84 is arranged in or at the first containment mating interface 80, and a second filter 86 through which air must pass to reach the housing space 38 is arranged in or at the second containment mating interface 82. As mentioned, the pressure in the housing space 38 increases due to the air supply, causing the flexible housing 32 to expand and press against the inner surface of the wall 16. The closing element 30 is opened here. Once the required amount of air has been supplied, the closing element 30 is closed. The first containment mating interface 80 has a first venting unit 88, and the second containment mating interface 82 has a second venting unit 90. Air can be released from the housing space 38 into the environment so that, for example, substances can be introduced into the housing space 38 by actuation of the first venting unit 88 and / or the second venting unit 90. The first filter 84 and the second filter 86 are arranged here such that the escaping air is filtered. Due to the fact that the closing element 30 remains closed, the flexible housing 32 does not collapse upon air release. Negative pressure can even be applied within the housing space 38. It should be noted that the arrangement of the first filter 84 and the second filter 86 is merely an example, and the first and second filters can also be arranged in different locations. For example, a separate first filter 84 can be connected to the free end of the first ventilation unit 88. Similarly, a separate second filter can be connected to the free end of the second ventilation unit 90. At least appropriately, the first filter 84 and the second filter 86 are arranged such that residues of the substance cannot be released into the environment with the escaping air.

[0124] It should be noted that providing only one of the ventilation units 88 and 90 would be sufficient for the aforementioned purposes. Alternatively, it is appropriate to design the ventilation units 88 and 90 such that they can flow through in both directions. In this case, regardless of whether overpressure occurs in the housing space 38 or negative pressure occurs in the space between the flexible housing 32 and the wall 16, both the air flowing into and escaping from the housing space 38 are filtered.

[0125] Must refer to Figure 8 It is mentioned that the container 12 is fastened to a frame 76 having multiple rollers 78. In this way, it is possible to move (especially push), grip using the gripping unit, raise and rotate the container 12.

[0126] refer to Figure 13 The partial cross-section shown illustrates a third embodiment of the protective arrangement 103 according to the invention, whose protective device 143 also has a flexible housing 32. Figure 11 The protective device 143 is displayed separately, and Figure 12 Displayed in magnified form Figure 11The area marked G. As in the previously described embodiment, the flexible housing 32 is attached to the first tubular member 40, for example by adhesive bonding or welding, in the area of ​​the main first end 42. In this respect, viewed starting from the first housing opening 34, the first tubular member 40 protrudes slightly into the flexible housing 32.

[0127] In the third embodiment, the first container mating connector unit 46 has a first locking member 94 on which a first locking member 94 can be placed (see details). Figure 14 The flange-shaped radial first extension 92. For example, the first locking member 94 may be formed by a cap nut, a swing top or a tension lock, and the first tubular member 40 may be connected to the container 12 using the first container connector unit 24.

[0128] In the third embodiment of the protective arrangement 103, the first tubular component 40 is connected to the container 12 in a manner that can be described from... Figure 13 and Figure 14 See. Figure 14 Displayed in magnified form Figure 13 The marked area H.

[0129] In the illustrated third embodiment, the first container connector unit 24 includes an external thread 96 onto which a nut (not shown) can be screwed to close the first container opening 20. Assuming such a nut is screwed onto the first container connector unit 24, the nut is removed and the main first end 42 of the first tubular member 40 is introduced into the first container opening 20, as... Figure 14 As shown in the diagram. As mentioned, the first container mating connector unit 46 has a flange-shaped radial first extension 92. This radial first extension 92 also serves to pre-position a sealing member 98, in this case, an O-ring. When the first tubular member 40 is introduced into the container 12, the sealing member 98 contacts the wall 16 of the container 12.

[0130] If not yet completed, the first locking member 94 is pushed onto the first tubular member 40. The first locking member 94 has an internal thread 100 that is complementary to the external thread 96 of the first container connector unit 24. Therefore, the first locking member 94 can be screwed onto the first container connector unit 24. (As can be seen from...) Figure 14 As can be seen, the first locking member 94 has an L-shaped cross-section, forming a radially inward-facing limb 102. The radially inward-facing limb 102 protrudes inward over the internal thread 100. Due to the axial displacement of the first locking member 94 caused by screwing onto the first container connector unit 24, this limb 102 contacts the radially first extension 92, thereby achieving a shape fit. In this respect, the sealing member 98 is compressed between the radially first extension 92 and the wall 16, such that the sealing member seals the container 12 relative to the first tubular member 40. The container 12 can now be filled.

[0131] In addition, specifically in Figure 14 It is understood that a first fastening unit 104, which may also be shaped as a radial extension or may include such a radial extension, is arranged between the main first end 42 and the main second end 44 of the first tubular member 40. For example, a connector component (not shown here) at the first tubular member 40 or the first tubular member 40 may be connected to the container 12 via this first fastening unit 104. The radial extension may be interrupted, allowing the connection to be implemented by means of a snap-fit ​​connection. Thus, the first tubular member 40 may be connected to the container 12 or the connector component by fastening members of different designs. For example, an additional connector component may also be connected to the tubular member to form a secondary interface. This increases the possibilities of use.

[0132] If container 12 has a second container opening 22 (see...) Figure 1 If the second tubular component 58 is connected to the container 12 (not shown) in the same manner, then the second tubular component 58 may have a design corresponding to the first tubular component 40.

[0133] List of reference numerals

[0134] 10 Protection Arrangement

[0135] 101-103 Protection Arrangement

[0136] 12 containers

[0137] 14. Protective devices

[0138] 141-143 Protective Devices

[0139] 16 walls

[0140] 18 Interior Space

[0141] 20 First container opening

[0142] 22 Second container opening

[0143] 24 First Container Connector Unit

[0144] 26 Second Container Connector Unit

[0145] 28 connectors

[0146] 30 Closing elements

[0147] 32 Flexible shell

[0148] 34 First shell opening

[0149] 36 Second shell opening

[0150] 38. Shell space

[0151] 40 First tubular component

[0152] 42 Main First End

[0153] 44 Main Second End

[0154] 46 First container mating connector unit

[0155] 48 First Connection Unit

[0156] 50 First confining interface

[0157] 51 Main First and Third Clamp Fasteners

[0158] 52 First Three-Clip Clamp Connector

[0159] 53 Secondary First and Third Clamp Fasteners

[0160] 54 First Three-Pliers Connector

[0161] 56 First Three-Prong Clamp Connector

[0162] 58 Second tubular component

[0163] 60 secondary first end

[0164] 62 secondary second end

[0165] 64 Second container mating connector unit

[0166] 66 Second Connection Unit

[0167] 68 Second confining interface

[0168] 70 Second and Third Clamp Connector

[0169] 72 Second and Third Clamp Connector

[0170] 74 Second and Third Clamp Connector

[0171] 75 Main second and third clamp fasteners

[0172] 76 Framework

[0173] 77 Secondary second and third clamp fasteners

[0174] 78 rollers

[0175] 80 First containment pairing interface

[0176] 82 Second containment pairing interface

[0177] 84 First Filter

[0178] 86 Second Filter

[0179] 88 First ventilation unit

[0180] 90 Second ventilation unit

[0181] 92 Radial first extension

[0182] 94 First locking component

[0183] 96 External thread

[0184] 98 Sealing components

[0185] 100 internal thread

[0186] 102. Limbs facing inward radially.

[0187] 104 First Fastening Unit

[0188] d a1 First outer diameter

[0189] d i1 First inner diameter

[0190] d i2 Second inner diameter

[0191] L is the longitudinal axis.

Claims

1. A protective device (14) for a container (12) for holding powdery substances, characterized in that, The container (12) includes: A wall (16) surrounds an inner space (18) and has a first container opening (20) through which the inner space (18) can be accessed; and A first container connector unit (24) surrounds the first container opening (20), and a connector component is capable of being connected to the container (12) via the first container connector unit; and The protective device (14) Includes a flexible housing (32) that surrounds a housing space (38) and includes a first housing opening (34); and It has a first tubular component (40) that connects to the housing (32) in the area of ​​the first housing opening (34) and has a first container mating connector unit (46), a main first end (42) and a main second end (44), wherein The first tubular component (40) is connected to the housing (32) such that the main first end (42) terminates in the first housing opening (34) or protrudes into the housing space (38), and The protective device (14) can be connected to the first container connector unit (24) by means of the first container mating connector unit (46), so that the housing (32) can be introduced into the inner space (18); The first container mating connector unit (46) is formed in the manner of a first three-clamp connector (52); A first connecting unit (48) is arranged at the main second end (44) of the first tubular component (40) to connect a connector component, and the connector component connected to the first connecting unit (48) is formed in the manner of a first enclosure interface (50).

2. The protection device (14) according to claim 1. Its features are, The container (12) includes: The second container opening (22) allows access to the inner space (18); and A second container connector unit (26) surrounds the second container opening (22), and another connector component can be connected to the container (12) via the second container connector unit; and The flexible housing (32) of the protective device (14) has: The second housing opening (36); and A second tubular component (58), which is connected to the housing (32) in the area of ​​the second housing opening (36) and has a second container mating connector unit (64), a secondary first end (60) and a secondary second end (62), wherein: The second tubular component is connected to the housing (32) such that the secondary first end (60) terminates in the second housing opening (36) or protrudes into the housing space (38); and The protective device (14) can be connected to the second container connector unit (26) by means of the second container mating connector unit (64), so that the housing (32) can be introduced into the inner space (18).

3. The protection device (14) according to claim 2, characterized in that, The first container mating connector unit (46) has a flange-shaped radial first extension (92) for placement on the first locking member (94); and / or The second container mating connector unit (64) has a flange-shaped radial second extension for placement on the second locking member.

4. The protection device (14) according to claim 3. Its features are, The second container mating connector unit (64) is formed as a second triple clamp connector (70).

5. The protective device (14) according to claim 2 above. Its features are, The second connecting unit (66) is arranged at the secondary second end of the second tubular component (58) to connect the connector component.

6. The protection device (14) according to claim 5. Its features are, The first connecting unit (48) is formed in the manner of a first three-pronged clamp connector (56); and / or The second connection unit (66) is formed in the manner of a second triple clamp connector (74).

7. The protection device (14) according to claim 6. Its features are, The connector component connected to the second connection unit (66) is formed in the manner of a second containment interface (68).

8. The protective device (14) according to claim 2. Its features are, A first fastening unit (104) is disposed between the main first end (42) and the main second end (44) of the first tubular component (40) for fastening the connector component to the first tubular component (40) and / or for fastening the first tubular component (40) to the container (12); and / or The second fastening unit is arranged between the secondary first end (60) and the secondary second end (62) of the second tubular component (58) for fastening the connector component to the second tubular component (58) and / or for fastening the second tubular component (58) to the container (12).

9. The protective device (14) according to claim 2. Its features are, The first tubular component (40) and / or the second tubular component (58) are made of flexible material.

10. A protective arrangement (10), characterized in that, It includes Container (12), which is used to hold powdery substances, said container has A wall (16) surrounds an inner space (18) and has a first container opening (20) through which the inner space (18) can be accessed; as well as A first container connector unit (24) surrounds the first container opening (20), and a connector component is capable of being connected to the container (12) via the first container connector unit. as well as The protective device (14) according to any one of claims 2 to 9, wherein the protective device (14) is connected to the first container connector unit (24) by means of the first container mating connector unit (46), such that the housing (32) can be introduced into the inner space (18), and the main second end of the first tubular member (40) protrudes outside the container (12).

11. The protective arrangement (10) according to claim 10. Its features are, The first container connector unit (24) and the first container mating connector unit (46) are configured to use a first locking member (94); and / or The second container connector unit (26) and the second container mating connector unit (64) are configured to use a second locking component.

12. The protective arrangement (10) according to claim 10. Its features are, The first container connector unit (24) and the first container mating connector unit (46) are formed in the manner of a first three-clamp connector (54); and / or The second container connector unit (26) and the second container mating connector unit (64) are formed in the manner of a second triple clamp connector (72).

13. The protective arrangement (10) according to any one of claims 10 to 12. Its features are, The first container connector unit (24) has a first inner diameter (di1); The second container connector unit (26) has a second inner diameter (di2); and The first connecting unit (48) has a first outer diameter (da1). The first outer diameter (da1) is smaller than the first inner diameter (di1) and the second inner diameter (di2).

14. The protective arrangement (10) according to any one of claims 10 to 12. Its features are, The container (12) has a connector (28) that leads to the inner space (18) and allows a vacuum or negative pressure to be provided between the wall (16) and the housing (32).

15. A method for connecting a protective device according to any one of claims 1 to 9 to a container, characterized in that, The container (12) mentioned above It has a wall (16) that surrounds an inner space (18) and has a first container opening (20) through which the inner space (18) can be accessed; and The method includes a first container connector unit (24) that surrounds the first container opening (20) and a connector component that can be connected to the container (12) via the first container connector unit. The method includes the following steps: The protective device (14) is introduced into the inner space (18) through the first container opening (20); as well as The protective device (14) is connected to the first container connector unit (24) by means of the first container mating connector unit (46).

16. The method according to claim 15, characterized in that, The container (12) has a connector (28) that leads to the inner space (18) and is capable of establishing fluid communication between the connector and the space between the wall (16) and the housing (32). The method includes the following steps: The connector (28) is used to apply negative pressure in the space between the wall and the housing.

17. The method according to claim 15, characterized in that, The container (12) has a connector (28) that leads to the inner space (18) and is capable of establishing fluid communication between the connector and the space between the wall (16) and the housing (32). The method includes the following steps: Overpressure is applied in the housing space (38) using the first tubular component (40); and Fluid is discharged from the space between the wall (16) and the housing (32) through the connector (28).

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