WO2015062709A1

WO2015062709A1 - Person-protecting device

Info

Publication number: WO2015062709A1
Application number: PCT/EP2014/002834
Authority: WO
Inventors: Stefan Wagner
Original assignee: Dräger Safety AG & Co. KGaA
Priority date: 2013-10-31
Filing date: 2014-10-21
Publication date: 2015-05-07
Also published as: DE102013018307A1

Abstract

The invention concerns a person-protecting device (10) for accommodating people in order to protect them against gases, comprising a mechanically stable base module (20), with at least one closeable door opening (22), and a flexible air bag (30) which is secured on the base module (20) in gastight manner around the door opening (22) and together with the base module (20) forms an accommodation chamber (40) which is closed-off from the environment in gastight manner.

Description

Personenschutzvorrichtunq

description

The present invention relates to a personal protection device for receiving persons for protection against gases.

It is known that protective measures must be taken in dangerous environments for persons working or working there. For example, underground in a mining operation there is the danger of an emergency situation due to fire, collapse, mine gas evolution or similar dangerous situations. In such a dangerous situation, it is not always possible to guarantee the immediate rescue of the persons in the mining operation. Thus, an emergency room must be made available as a refuge for such a situation. In a known manner for this purpose escape chambers are used, which form with steel walls the corresponding protective function to ensure the survival of people.

A disadvantage of the known solutions for escape dreams is that they are very bulky and expensive to transport. Thus, for example, known container systems are adapted in terms of their space to the necessity of the male persons. Accordingly, the volume thus defined must be able to be transported underground into the mining operation. Also, a sufficiently large main lug must be provided underground to allow the movement of this large container to the desired escape clearance position. Not least, suitable means of transport must be provided underground as transport aids, for example in the form of forklifts, in order to be able to actually carry out this transport. This leads to restrictions, in terms of the size of the custody rooms and high technical and thus costly effort for the transport of the custody rooms.

It is an object of the present invention to at least partially overcome the disadvantages described above. In particular, it is the object of the present invention to improve the flexibility in the use of the protective device in a cost-effective and simple manner.

The above object is achieved by a personal protection device having the features of claim 1. Further features and details of the invention will become apparent from the dependent claims, the description and the drawings. There are features and Details that are described in connection with the personal protection device according to claim 1, of course, also in connection with the personal protection device according to the subclaims and in each case vice versa, so that with respect to the disclosure of the individual aspects of the invention always reciprocal reference is or may be.

A personal protection device according to the invention serves to accommodate persons for protection against gases. In order to fulfill this function, the personal protection device has a mechanically stable base module with at least one closable and in particular sufficiently gastight door opening. Sufficient gas tightness refers to a specific maximum pressure difference between the interior of the personal protection device and the environment and is generally referred to as "gas-tight." Furthermore, a flexible airbag is provided, which is attached gas-tight to the base module around the door opening forms together with the base module a gas-tight sealed against the environment receiving space.

The personal protection device according to the present invention thus forms a refuge space, as has been explained in the introduction of this application. The personal protection device may preferably be formed underground as a personal protection device for a mining operation. However, the personal protection device can also be used in other risky operating situations. As an example of such an alternative possibility is the use on a tractor for a dangerous goods transport called.

According to the invention, the personal protection device will form its protective effect through the receiving space in which a plurality of persons can find space. This receiving space is sealed gas-tight against the environment, so that the penetration of harmful gases, which could lead to the impairment or even death of the persons in the receiving room, is avoided. Such gases, against which a gastight protection must be ensured, are, for example, mine gas or C0 ₂ or carbon monoxide.

While in the case of known mining situations, secondary tunnels often have to be produced, which subsequently have to be sealed in a gas-tight manner to the front and above all against the surrounding rock, the personal protection device according to the invention is a simple and, above all, flexibly transportable solution. By the combination of a mechanically stable base module on the one hand and a flexible gas bag on the other hand, a geometric extent of the personal protection device is given in a variable manner beyond. Thus, for the transport of the personal protection device of the flexible gas bag can be folded, so that in principle only the stable base module must be transported. The geometric extensions of the mechanically stable base module represent the transport volume Demensprechend, which is significantly reduced based on the entire formable receiving space through the flexible airbag. Thus, any large reception rooms can be made available essentially without _degrading, transportability even in cramped conditions or prevent.

Under a mechanically stable base module is according to the invention. to understand a component which has a sufficient mechanical resistance. In particular, a mechanically stable base module is to be understood as a module which enables a mechanical securing effect. The effect of pressure waves from the environment or flying components or stones can be mitigated by the base module on the receiving space. A pressure wave in a mining operation is thus preferably held ^■ thereof from the mechanically stable base module to shake the receiving space or to destroy or bring about leaks.

The mechanical stability of the base module is further to be understood as meaning that it is preferably possible to set up the base module. For example, in a mining operation in a secondary tunnel, the entire access area can be covered by the base module. This is a pressure and shockproof securing this Nebenstollens achieved with respect to the main lug. However, the secondary tunnel is in principle not yet to be regarded as gas-tight. Thus, there would continue to be the risk that mine gas or other toxic gases which restrict the vital function of the persons in the receiving space can penetrate into the recreation room of the persons. In order to achieve this against an effective and above all flexible and cost-effective protection, the flexible gas bag is gas-tightly attached to the base module around the door opening around. As a result, the persons can pass through the door opening, as it were, into the interior of the gas bag and thus into the receiving space. Thus, the gas-tightness of the receiving space is independent of the formation of the surrounding rock of this Nebenstollens. In addition, can be done by the flexibility of the airbag, a geometric adjustment of the size of the receiving space in a simple and cost-effective manner to the actual conditions of this Nebenstollens. In a mining operation, material is extracted by driving tunnels into the mountain. In other words, the workplaces within the mining operation are changing daily. As a result, over time the space of escape must also be moved to the respective new workplace. This transport option is significantly improved by a personal protection device according to the invention. Thus, after making a new Nebenstollens the personal protection device can be easily dismantled in the old place by the flexible gas bag is folded. In this case, the gas-tight fastening of the flexible gas bag preferably remains on the base module. With the help of a transport device, such as a forklift, the entire personal protection device can now be transported with folded flexible gas bag to the new location. There, in turn, the base module is fitted into the opening of the secondary lug and, for example, additionally sealed against the effect of temperature or pressure on the interior of the secondary lug. Subsequently, the flexible gas bag can be unfolded on the back of the base module, so that now the gas-tightness of the receiving space is also given. The size and thus the volume of the receiving space preferably correlate with the size or the volume of the secondary lobe.

The door opening can of course be closed by a door according to the invention. Also, other fixtures, such as a later-described lock device within this door device may be arranged as part of the base module.

The mechanically stable base module thus serves to provide the mechanical protection of the receiving space. The additional surrounding walls of the secondary lug serve for additional mechanical protection of the receiving space, which is why there no mechanical additional protective function must be provided for the otherwise flexible gas bag. Rather, the mechanical protective function of the surrounding walls within the mining operation can be used. In order to compensate for the lack of gas-tightness of the surrounding mountain walls in the mining operation, the flexible gas bag is accordingly provided according to the invention.

According to the invention, a significant reduction in the production costs of the personal protection device can be achieved. So only the base plate must have sufficient mechanical stability to achieve a safety function against pressure waves, fire or other mechanical effects. Other walls are not needed because the mechanical safety function is provided there by the mountain walls as a surrounding wall. However, a seal against gas entry of these surrounding mountain walls is not required, since this last safety function is ensured by the gas-tightness of the flexible gas bag.

The mechanically stable base module preferably has a footprint so that it can be placed. Thus, in particular, it no longer requires any additional fastening possibility, but can be configured with additional stability by means of additional fastening devices.

The flexible gas bag is preferably made of a plastic material and / or a fabric material. Also, individual reinforcing fibers can provide the gas bag in accordance with the invention a higher mechanical stability available. It may be advantageous if, in a personal protection device according to the invention, the mechanically stable base module at least in sections has a thermal insulation for thermal insulation of the receiving space from the environment. For example, a sandwich structure may be provided for the mechanically stable base module. The thermal insulation means that in a fire situation the heat generated by the fire is passed on only to a small extent to the receiving space. On the one hand, this causes the temperature in the interior of the receiving space to increase at a lower speed. The temperature within the containment room is one of the crucial survival factors for the individuals within the personal protection apparatus. Another advantage of the thermal insulation is that the passing of the temperature is also reduced to the flexible gas bag. Thus, the flexible gas bag is preferably mounted on the receiving space facing inside of the base module. Heat could be transmitted from the Bäsismodul to the gas bag theoretically via heat conduction via these attachment surfaces. If there is now thermal insulation within the base module, then the heating of the flexible gas bag resulting from heat conduction is also reduced. This can be used more cost-effective and simpler materials for the gas bag, which are provided in particular with lower melting temperatures.

It is furthermore advantageous if, in a personal protection device according to the invention, the base module has at least one supply device, in particular one of the following: ,

6

Air conditioning device

- Cooling device

Air conditioning device

Power supply device

The list above is a non-exhaustive list. Of course, combinations of these supply devices may be provided. The supply device can be both an independent embodiment and a dependent embodiment with a corresponding interface. For example, it is possible for a corresponding interface connection to be provided on the outside of the base module via which, for example, an electrically conductive connection can be made available as a plug contact. A media supply can be ensured in this way via corresponding connection valves. For example, an air treatment device may include C0 ₂ absorption. Cooling or air conditioning leads to better protect the vital functions of the persons in the receiving room and thus to extend the survival period.

In addition, it is advantageous if, in a personal safety device according to the invention, the base module has at least one fastening support for the support and / or attachment of the base module to a surrounding wall. This means that the base module can additionally support acting mechanical forces from the outside against the surrounding wall of a corresponding lug. For example, manual and / or automatically movable support devices are conceivable as mounting posts. In particular, a support against an action from the outside, so that for example by pneumatic or hydraulic solutions, the support can be provided. In addition to a pure support, it is also possible that an attachment of the base module takes place. Thus, the attachment posts by hacking and / or burring in the surrounding wall additionally provide bidirectional power transmission in both directions.

Another advantage can be achieved if, in a personal protection device according to the invention, at least one mechanically stable additional module is reversibly attached to the base module for the protection of the flexible gas bag against mechanical impact from the environment. As has already been explained several times, the personal protection device can be used, for example, in a secondary tunnel in a mining operation. For this it is necessary that the entire entrance area to this Nebenstollen having the mechanical protection effect according to the mechanically stable base module. Since the base module should be made as small as possible in order to provide the corresponding flexible transport capability, at least one mechanically stable additional module is preferably provided. This may for example be slidably attached to the base module. Thus, similar to a sliding puzzle by a plurality of mechanically stable additional modules a flexible and each unique specific adaptation to the corresponding geometry of the opening of the side lobe can be generated. Thus, the flexibility in the use of the personal protection device according to the invention is further increased.

In addition, it is advantageous if, in a personal protection device according to the invention, the base module has at least one transport interface for the transport of the perspse protection device. In particular, this is a mechanical transport interface. Thus, ^'for example, by a corresponding undercut or recess made in the outer wall of the base module to intervene with the tines of a forklift. In this way, a lifting and transporting of the base module and thus the entire personal protection device can be performed. Also screw-in options for or permanently installed lashing or Verspannösen can form a corresponding transport interface.

It is likewise advantageous if, in a personal safety device according to the invention, at least one sealing device is provided for sealing against a surrounding wall, in particular on the base module and / or on an additional module. This sealing by the sealing device aims in particular at a seal against pressure waves or against convection of hot gases. This provides an additional protective effect. In particular, the flexible gas bag is protected against undesired mechanical or thermal action. The provision of an additional sealing device thus makes it possible to concentrate the flexible gas bag with regard to its material formation on the gas tightness protection effect. This leads to a cheaper and easier choice of material for the gas bag is used.

A further advantage can be achieved if, in a personal safety device according to the invention, the base module has a lock device on an inner side directed into the receiving space. This ensures, that even after the occurrence of a dangerous situation, an entry and exit of persons can take place from or into the receiving space of the personal protection device. The lock device has for this particular a small lock room with two doors on. This opens a door into the reception room and the other door in the area. For example, flushing devices may be provided inside the lock chamber. For example, an air purge device can provide appropriate decontamination of incoming persons. Thus, as an integral part of the base module, its range of functions is further upgraded without restricting the advantages according to the invention of easy transportability and flexible deployment options.

It is also advantageous if in a personal protection device according to the invention at least one stabilization structure, in particular in the form of a stabilization framework, is provided for clamping the airbag. By this is meant, for example, an inner and / or outer linkage as a stabilization structure. Also, an attachment of this stabilization structure may be provided on the surrounding walls. Since usually with an internal pressure of the gas bag is protected against the ingress of undesirable gases, but this internal pressure is not sufficient to ensure inflation of the gas bag against its own weight, can be provided by providing a stabilizing structure of this clamping. The stabilization structure can also serve in the interior of the receiving space to provide protection against mechanical negative influence available. Thus, in addition to a kind of tent poles inside and / or outside of the receiving space, an installation variant in the form of installation panels in particular in the ground area an additional stabilization and protective effect for the gas bag, for example, to prevent leaks by entering are provided.

It is also advantageous if, in a personal safety device according to the invention, the gas bag has at least one variation section for the length variation of the gas bag. This is to be understood that different volumes for the gas bag and thus for the receiving space are necessary for different situations. For example, a personal protection device according to the invention can be flexibly adapted to the need to accommodate between four and up to 30 people in the recording room. About a drape of the gas bag, the volume can be correspondingly reduced or increased, so that according to a concertina function, a flexible adjustment of the volume of the receiving space to the actual conditions of use is possible. To ensure that no unnecessary large volume is present in the receiving space, individual fastening sections can be provided, for example via zippers, hook-and-loop fasteners or hook and loop connections, which can be folded apart from one another Prevent variation sections of the gas bag. An undesirable puffing is thereby avoided.

Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, embodiments of the invention are described in detail. The features mentioned in the claims and in the description may each be essential to the invention individually or in any desired combination. 1 shows an arrangement of an embodiment of a device according to the invention

Personal protection device

Fig. 2 shows another embodiment of an inventive

Personal protection device in schematic cross-section and

Fig. 3 shows another embodiment of an inventive

Personal protection device.

Fig. 1 shows schematically an arrangement of a personal protection device 10 according to the invention in a side lane 10 to a main tunnel 100 of a mining operation. Side outgoing from the main tunnel 100, a secondary tunnel 1 0 was accordingly formed for the arrangement of the personal protection device 10 as a refuge. The entrance opening of this side lobe 110 is partially covered by the base module 20 of this personal protection device 10. The remaining lateral areas of this opening in the secondary lugs 110 are covered by additional modules 50, so that in this way a mechanical protective effect against the action of mechanical forces such as pressure waves or stone chipping or a protective effect against thermal exposure, e.g. is given by fire., Within the Nebenstollens 110 accordingly a mechanically protected space is provided, in which persons can seek protection. However, since the surrounding walls 120 of the side lobe 110 are not gas-tight, an additional safety function must be given by the inventive design of the personal protection device. This leads to the use of the flexible gas bag 30, which now also allows a gas protection effect within the receiving space in addition to the mechanical protective effect.

2, a further embodiment of a personal safety device 10 according to the invention is shown schematically in cross section. While out of one Main lug 100 branches off a side lobes 110, can be arranged in this side lobe 1 10 of the receiving space 40 of the personal protection device 10. On the one hand, the receiving space 40 is mechanically protected by the base module 20 in the direction of the main lug 100. The gastightness against the surrounding rock of the side lobe 110 is ensured by the gas-tight design of the flexible airbag 30.

In the embodiment according to FIG. 2, some additional components and features of a personal protection device 10 according to the invention can be seen. For example, an additional seal is made by means of a sealing device 60 to reduce the effect of pressure and / or temperature on the airbag 30. In order to reduce further thermal impact on the receiving space 40, the base module 20 is partially constructed in sandwich structure and has internal thermal insulation 24. The heat transfer resistance is increased with respect to a heat input from the main lug 100 into the receiving space 40.

Next supply devices 26 are provided. These supply devices 26 are designed, for example, for the air conditioning or for the air conditioning of the receiving space 40. The upper of the two supply devices 26 has an external interface 27 for media supply or power supply.

To get into the receiving space 40, a lock device 28 is provided here. It forms, so to speak, the door opening 22 and is provided on both sides with a door 22a and 22b. In addition, the base module 20 above an exemplified mounting bracket 21 is provided. This can provide a support of the base module 20 against the surrounding wall 120 in a pneumatic, manual and / or hydraulic manner.

A stabilization structure 70 can also be seen in FIG. 2, which supports the gas bag 40 as an external framework structure and stabilizes it. By way of example, this stabilization structure 70 is attached to the surrounding wall 120.

FIG. 3 schematically shows a further embodiment of a personal safety device 10 according to the invention. This has, arranged on the base plate 20, a variable gas bag 30, which has variation sections 32. In a ziehharmohikaartigen manner can in this way the internal volume of the receiving space 40 are varied by extending the airbag 30. In this way an adaptation to different needs can be given.

The above explanation of the embodiments describes the present invention solely by way of example. Of course, individual features of the embodiments, if technically feasible, can be combined freely with one another, without departing from the scope of the present invention.

LIST OF REFERENCE NUMBERS

10 passenger protection device

20 basic module

20a inside

21 fixing support

22 door opening

22a door

22b door

23 transport interface

24 thermal insulation

26 supply device

27 interface

28 Locking device 30 Airbag

32 variation section

40 recording room

50 additional module

60 sealing device

70 stabilization structure

100 main galleries

1 0 secondary tunnels

120 surrounding wall

Claims

A personal protection device (10) for accommodating persons for protection against gases, comprising a mechanically stable base module (20) with at least one closable door opening (22) and a flexible gas bag (30) which is attached to the base module (20) around the door opening (22 ) is mounted gas-tight around and together with the base module (20) forms a gas-tight sealed against the environment receiving space (40).

Personal protection device (10) according to claim 1, characterized in that the mechanically stable base module (20) at least partially has a thermal insulation (24) for thermal insulation of the receiving space (40) against the environment.

Personal protection device (10) according to one of the preceding claims, characterized in that the base module (20) has at least one supply device (26), in particular one of the following:

- Air treatment device

- Cooling device

- Air conditioning device

- Power supply

Personal safety device (10) according to one of the preceding claims, characterized in that the base module (20) has at least one fastening support (21) for supporting and / or fastening the base module (20) to a surrounding wall (120).

Personal protection device (10) according to any one of the preceding claims, characterized in that at least one mechanically stable additional module (50) is reversibly attached to the base module (20) for the protection of the flexible airbag (30) against mechanical action from the environment.

Personal protection device (10) according to any one of the preceding claims, characterized in that the base module (20) has at least one transport interface (23) for the transport of the personal protection device (10). Personal protection device (10) according to any one of the preceding claims, characterized in that at least one sealing device (60) for sealing against a surrounding wall (120), in particular on the base module (20) and / or on an additional module (50) is provided. ,

Personal safety device (10) according to any one of the preceding claims, characterized in that the base module (20) on a in the receiving space (40) directed inside (20a) has a lock device (28).

Personal protection device (10) according to any one of the preceding claims, characterized in that at least one stabilization structure (70), in particular in the form of a stabilization framework, is provided for clamping the airbag (30).

Personal safety device (10) according to one of the preceding claims, characterized in that the gas bag (30) has at least one variation section (32) for the length variation of the gas bag (30).