WO2015110412A1

WO2015110412A1 - Rescue equipment with fireproof suspension

Info

Publication number: WO2015110412A1
Application number: PCT/EP2015/050967
Authority: WO
Inventors: Daniel Dicke
Original assignee: Skylotec Gmbh
Priority date: 2014-01-21
Filing date: 2015-01-20
Publication date: 2015-07-30
Also published as: DE202014000428U1; EP3096842A1

Abstract

The invention relates to a rescue apparatus (1) having a textile descent rope (6), having a rope clamp (8), which is threaded on the descent rope (6), having a safety rope (13), having a connecting means (10) and having a descent device (9), which is threaded on the descent rope (6), in order to rescue an individual (2), wherein the descent rope (6) has a fastening end (7), which can be fastened at a point of attachment (3), the safety rope (13) is configured from a fire-resistant material, which gives it a functional integrity of ≥ 5 minutes, and has a first end (14) and a second end (16), the safety rope (13) connects the fastening end (7) to the rope clamp (8) and has a length (17) between the first end (14) and the second end (16) of ≤ 30 m, the connecting means (10) connects the descent device (9) to the rope clamp (8) and the connecting means (10) has a tensile strength of ≤ 300 N.

Description

Rescue device with fireproof suspension

The invention relates to a rescue device with a textile Abzugsseil, threaded on the Abfahrseil rope clamp, a safety rope, a connecting means and threaded on the Abfahrseil

Depositing device for saving a person.

By means of a rescue device, a person can independently from an elevated position, so

For example, from a nacelle of a wind turbine abseil on a down rope of the rescue device towards the ground by a roping, and so even from a dangerous situation, such as from a

burning gondola, free. The rescue device has to a Abfahreinrichtung, too

Called self-locking device, which is threaded on the Abfahrseil. The downhill rope, such a textile rope, is attached to the nacelle in a common variant, the person wearing a safety belt, such as a harness, with which the person is attached to the Abfahreinrichtung. The Abfahreinrichtung brakes during Abseilvorgangs along the Abfahrrichtung along sliding Abfahrseil so that the person safely from the gondola can get to the ground.

Especially in offshore wind turbines are working on the nacelle of the wind turbine working people alone on its own, on the one hand the location of wind turbines, some several kilometers offshore in the open sea, and the height of the gondola, sometimes more than 100m above the sea, in in most cases, any outside help

impossible. Therefore is also common and partly too legally required that three rescue devices be installed per wind turbine. Since the

Abseilvorgang from aforementioned heights of more than 100m takes some time, the

Rescue devices also be configured fire-retardant, so that a functional integrity of the rescue device is guaranteed at least for the duration of Abseilvorgangs. For installations on offshore wind turbines, disposal facilities with a refractory steel cable as a downhill rope are ruled out due to the required volume and costly handling. Although aramid as downhill rope would ensure the required functional integrity for the duration of Abseilvorgangs from a gondola with more than 100m height for a period of about 10 minutes, but aramid ropes are extremely costly, the cost of three rescue devices naturally

triple. Even if an operator of an offshore wind turbine would incur these costs, there are currently no rescue systems with aramid as

Downhill rope with more than 40m length available.

The invention is based on this situation based on the object to provide a cost-saving rescue device, which allows a rappelling from a height of more than 40m even in a fire safe rappelling a person. The object is achieved by the features of the independent claims. advantageous

Embodiments of the invention are specified in the subclaims. Accordingly, the solution of the problem is done by a

Rescue device with a textile Abzugsseil, a threaded on the Abzugsseil rope clamp, a

Safety rope, a connecting means and a threaded on the Abfahrseil removal device for rescuing a person, wherein the Abfahrseil has an attachable to a stop point attachment end, the

Safety rope is made of a fire-resistant material, which has a functional integrity of the

Safety rope of> 5 minutes, and having a first end and a second end, the safety cable connecting the attachment end to the cable clamp and having a safety cable length between the first end and the second end of <30m, the connecting means connects the Abfahreinrichtung with the cable clamp and the bonding agent has a tensile strength of <300N.

An essential point of the invention is thus that instead of a downhill rope, which is configured along its entire length of steel or aramid, only in

Range for example, a height of a gondola one

Wind turbine a safety cable is provided, which in the event of a fire of the nacelle, thereby destroying the Anfahrseils in the nacelle, nevertheless during a period of Abseilvorgangs the rescued person allows a reliable abseiling. If during a roping operation in the said area the

Abfahrseil is damaged by flame, and the person to be rescued "down below" below the gondola abseilt on the downhill rope towards the ground, then takes place in the gondola area instead of the textile Abfahrseil a backup of the person through the Safety rope. Thus it does not crash the

Person, since the height of the gondola parallel to the textile

Down rope the safety rope which receives the load caused by the person to be rescued. A safe departure from the gondola is thus even in case of fire in the gondola

possible. In addition, the proposed

Design a reliable rescue even if the person in an offshore wind turbine for a long time in the downhill rope above the ground or sea has to hang until a boat picking up the person comes.

The rope clamp preferably slides along the downhill rope to abseil the person, with the downhill rope particularly preferably being passed through the rope clamp. The removal device also preferably slides along the downhill rope to the side of the person, wherein more preferably the downhill rope is passed through the removal device. In this respect, the term "threaded" is not

restrictive interpreted, but means in the context of

Invention, for example, guided by the downhill rope or slidably disposed on the downhill rope. The attachment end can be used as a carabiner, as eyelet or as other

Fastener be configured, wherein further

preferred is the attachment point on the nacelle of

Wind turbine is provided. Alternatively, the

Attachment point to be provided on a high-rise. The downhill rope preferably extends from his

Fastening towards the other, opposite end towards the ground, wherein, in the case of a wind turbine, the downhill cable particularly preferably extends from the nacelle to a foot of the wind turbine, the bottom and / or the sea. More preferably, the downhill rope is designed according to EN 1891 and / or has a Length>50m,>75m,>100m,> 125m or> 150m. More preferably, the downhill rope is dimensioned such that a person of at least 75kg can be secured by the downhill rope.

The safety rope is made of a fire-resistant material, which allows a function of the safety rope of> 5 minutes. This means that, for example, in a direct flame of the safety rope, the safety rope during a

Time of at least 5 minutes does not rupture. In other words, due to the configuration of the safety rope, it is ensured that the person secured with the safety rope does not crash during this time period. More preferably, the material of the safety rope on a fire resistance such that in case of fire the

Safety rope retains its function for at least 5 minutes. Even more preferably, the safety cable has a fire resistance duration of> 5 minutes, which is defined according to DIN 4102.

According to a further preferred embodiment, the rescue device has one with the attachment end

connected safety wire storage device, configured to receive the safety rope, on, from which the

Safety rope is pulled out to the safety rope length. Particularly preferred is the

Safety rope storage device designed as a fall arrester and / or as a retractor. According to yet another preferred embodiment is in one

Ground state the safety rope along its

Safety rope length within the

Security rope storage device arranged. there the ground state preferably corresponds to

Delivery condition of the rescue device. Also preferably, the downhill rope is provided within the rescue device in the ground state.

To save the person, the person connects

preferably initially with the removal device. Preferably, the person has a safety belt, with which the Abfahreinrichtung, for example by a

Snap hook, is connectable. The Abfahreinrichtung can be configured as a known from the prior art abseiling and / or rescue equipment, which controls the abseiling speed by taking advantage of the frictional forces during rappelling along the Abfahrseils or rescuing such that the abseiling person at a

Abseilvorgang slides at a defined speed to the ground, so that in the result an uncontrolled crash of the person is avoided. In the basic state of the rescue device according to the preferred embodiment, first the safety rope along its safety rope length within the

Security rope storage device provided. The

Safety cable storage device may for this purpose have a housing, wherein according to another preferred

Embodiment, the safety rope within the

Security rope storage device by means of a

Fixing means is held such that by removing the safety cable from the safety cable storage device, the fixing means is releasable. The fixative can

be configured for example as a hook or eye made of a plastic. The fixing agent is more preferred a tensile strength which is smaller than the tensile strength of the bonding agent.

So after the person to be rescued has started the abseiling process, the person slides, secured by the

Departs on the downhill cable from the gondola down to the ground. Since by means of the connecting means the

Abfahreinrichtung is connected to the rope clamp, also slides the rope clamp on the downhill rope in the direction of the ground. The rope clamp is with the safety rope

connected in the ground state, according to the preferred embodiment, within the

Security rope storage device is arranged. The safety cable is on the other hand connected to the attachment end. If now the person to be rescued slides to the ground, the safety rope from the

Safety cable storage device pulled out, so that the connecting means is released and the safety cable is free. In an embodiment as a fall arrester, the safety cable is pulled out of the fall arrester for abseiling, wherein also a unrolling,

Unrolling or threading out of the safety cable can be possible. But the safety rope is a finite one

Safety cable length of <30m, this means that after the complete withdrawal of the

Safety rope from the

Security rope storage device, so if the

Abfahrinrichtung over a distance greater than the

Safety length of the attachment end is traveled, that the connecting means on further departure of the Abfahreinrichtung or abseiling the person to train is claimed. Since the connecting means only one

has a final tensile strength of <300N, ruptures

Exceeding the tensile strength of the connecting means. In this "tear position", however, the cable clamp remains, which then preferably engages in the safety cable in a clamping manner

However, tear position and the attachment end of the downhill rope is damaged due to flame, but this does not lead to the crash of the secured person, as the person in said damaged area continues through the

Safety rope is secured, which is connected at the tear position by means of the cable clamp with the underlying part of the Abfahrseils. Basically, the safety cable to achieve the functional integrity of> 5 minutes can be configured arbitrarily. According to a particularly preferred embodiment, the safety rope is designed as Aramidseil or steel cable. Since the safety rope length on -S 30m

is limited, so preferably is substantially smaller than the length of the Abfahrseils, can be through the

proposed embodiment a very cost-effective

Achieve realization of the rescue device. The rope clamp can be configured as any known from the prior art rope clamp, wherein

more preferably, the cable clamp is designed such that the cable clamp blocks the departure rope against each other in a train of safety rope and Abfahrseil. More preferably, the rope clamp is designed as a climbing clamp. Particularly preferably, the dimensioning of the cable clamp is adapted to the diameter of the safety cable to a To prevent accidental slipping of the safety rope through the rope clamp in case of blockage.

According to a further preferred embodiment, the connecting means has a predetermined breaking point, which has the tensile strength of <300N. As a result, a defined point is created on the connecting means, at the abseiling of the person when exceeding the

tensile strength breaks the connecting means. According to yet another preferred embodiment, the connecting means comprises two single ropes and one

Single ropes connecting keyring, wherein one of the two individual cables with the

Abfahreinrichtung and another of the two single ropes is connected to the rope clamp. The can

Individual ropes be designed as textile ropes, which preferably each have a small diameter than the Abfahrseil and / or the safety rope. The key ring may be designed as a key ring known from the prior art, so that a very cost-effective way is proposed to design the connecting means. In principle, however, the connecting means can be configured as desired for the purpose of forming the aforementioned tensile strength, with the connecting means more preferably being designed in such a way that the connecting means, when exceeding the

Tensile strength breaks. After another preferred

Embodiment, the safety length is smaller than the length of the downhill rope, so preferably smaller than the entire length of the downhill rope between its two ends. Particularly preferably, the safety cable is made of a fire-resistant material, which has a functional integrity of the safety cable of> 10

Minutes,> 20 minutes or> 30 minutes. Further preferred is the safety length -S 20m, <10m or <5m. Finally, it is preferred that the tensile strength -S 200N, <100N or <50N.

The object of the invention is further achieved by a wind power plant with a nacelle and arranged on the nacelle rescue device as above

described, with the attachment end is attached to the nacelle as a stop point. By means of

Rescue device is in a fire in the gondola safe departure of a person from the gondola to the ground or ground possible.

The invention will be explained in more detail with reference to the accompanying drawings with reference to preferred embodiments.

Show it

Fig. 1 shows a rescue device according to a preferred

Embodiment of the invention in one

Ground state in a schematic view,

Fig. 2, the rescue device of FIG. 1 in a

rr tear position "with fully extended

Safety rope in a schematic view, Fig. 3 shows the rescue device of FIG. 1 in a further position below the "tear position" in a schematic view, and

Fig. 4 wind turbine with a

Rescue device according to Fig. 1 in a schematic view.

Figures 1, 2 and 3 show a rescue device 1 according to a preferred embodiment of the invention in a schematic view. The rescue device 1 is used for self-rescue of a person 2 from a burning nacelle 3 of a wind turbine 4, shown in Fig. 4. In the wind turbine 4 is in a

Offshore wind turbine 4, which has a hub height of 100m, the nacelle 3 is also located 100m above ground 5.

The rescue device 1 has a textile Abfahrseil 6 according to EN 1891, which has a rope length of 100m. If the nacelle 3 does not burn, the downhill rope 6 is stored in the rescue device 1. However, when the nacelle 3 is burning, the person to be rescued 2 can take the descent rope 6 of the rescue device 1 and descend from the nacelle 3 to the bottom 5, as shown in FIG. This basic state of the rescue device 1 after

Lowering the Abzugsseils 6 is shown in Fig. 1 in detail.

This figure shows that the rescue device 1 is attached to an attachment point 3 of the wind turbine 4, so in this case on the nacelle 3. Concretely, with the attachment point 3 is a mounting end 7 of the Abfahrseils. 6 connected. At the Abfahrseil 6 is successively, from the nacelle 3 in the direction of ground 5, first threaded a cable clamp 8 and then a Abfahreinrichtung 9, so that both the cable clamp 8 and the Abfahrrichtung 9 are movably connected to the Abfahrseil 6 connected to the Abfahrseil 6. In addition, the rope clamp 8 and the

Depositing 9 with each other by means of a

Connecting means 10, wherein the

Connecting means 10 is configured by two textile single ropes 11, which together by a

Sollbruchbestelle 12 are connected. The individual cables 11 have a diameter which is smaller than that

Diameter of Abfahrseils 6 is. The predetermined breaking point 12 is presently configured as a key ring such that the connecting means 10 has a tensile strength of 100N.

With the attachment end 7 a safety cable 13 is also connected. Specifically, a first end 14 of the

Safety rope 13 with a reel as the 15th

configured safety memory device 15, wherein the second, opposite end 16 of the

Safety cable 13 is connected to the cable clamp 8. The safety cable 13 is made of a fire-resistant material, which has a functional integrity of the

Security rope 13 of> 10 minutes, the material in this case is aramid. Furthermore, the

Safety rope 13 in that shown in Fig. 2

"Stretched", linear state between the first end 14 and the second end 15 has a safety cable length 17 of 10m.To rescue the person 2 connects this

For example, a tightened rescue belt, not shown, with the Abfahreinrichtung 9, which present is designed as a known from the prior art abseiling and rescue equipment, such as the type Milan 2.0 Hub of the company Skylotec. In the basic state shown in Fig. 1 is the

Safety rope 13 completely within the

Security storage device 15 is provided and fixed in the interior of the security storage device 15 with a plurality of fixing means 18 to the security storage device 15. The fixing means 18 are configured such that when the safety cable 13 is pulled out of the safety storage device 15, the fixing means 18 release the safety cable 13. If that with the

Abfahreinrichtung 9 connected person 2, braked by the Abfahreinrichtung 9, on the Abfahrseil 6 due to

Gravity of the gondola 3 towards the bottom 5 slides, is due to the connection between the removal device 9 by means of the connecting device 10 with the cable clamp 8, the safety cable 13 from the

Safety storage device 15 pulled out until the safety cable 13 between its first end 14 and the second 16 extends linearly along the safety cable length 17, as shown in Fig. 2. If now from this "tear position" shown in Fig. 2, the removal device 9 together with the rescue

Person 2 continues to move toward reason 5, the pauses

However, rope clamp 8 in the position shown relative to Abfahrseil 6. In the episode, so if the maximum,

shown extension length of the safety cable 13 is reached, the connecting means 10 is claimed to train and ruptures in the predetermined breaking point 12, as shown in Fig. 3. The person 2 can now be unhindered and secured by the Lowering device 9 continue to slide down towards the bottom 5, while the cable clamp 8 remains in the tearing position.

If now the Anfahrseil 6 is severed by fire in the area of the nacelle 3, so in an area between

Fastening 7 and rope clamp 8, then blocked the rope clamp 8 due to the resulting train between the undestroyed part of the Abfahrseils 6 between the rope clamp 8 and ground 7 due to the weight of the person 2 and the safety rope 13, so that in the result, the person 2, held by the Safety rope 13, does not crash. In other words, this takes parallel to the downhill 6

extending safety rope 13 in the area between attachment end 7 and rope clamp 8, the load of the person 2 on.

LIST OF REFERENCE NUMBERS

Rescue device 1

Person 2 gondola 3

Wind turbine 4

Reason 5

Down rope 6

Fastening 7 rope clamp 8

Depositing device 9

Connecting means 10

Single rope 11

Breaking point 12 safety rope 13

First end 14

Safety storage device 15

Second end 16

Safety rope length 17 Fixing agent 18

Claims

claims

1. rescue device (1) with a textile Abfahrseil (6), one on the Abfahrseil (6) threaded rope clamp (8), a safety cable (13), a connecting means (10) and one on the Abfahrseil (6) threaded

Removal device (9) for saving a person (2), wherein the departure rope (6) has an attachment end (7) which can be fastened to an attachment point (3),

the safety cable (13) from a

fire-resistant material is designed, which allows a functional integrity of the safety cable (13) of> 5 minutes, and having a first end (14) and a second end (16),

the safety cable (13) connects the attachment end (7) to the cable clamp (8) and has a safety cable length 817) between the first end (14) and the second end (16) of <30m,

the connecting means (10) connecting the Abfahreinrichtung (9) with the cable clamp (8) and

the connecting means (10) has a tensile strength of <300N.

2. Rescue device (1) after the preceding

Claim, with one with the attachment end (7)

connected safety rope storage device (15)

configured to receive the safety rope (13) from which the safety rope (13) up to

Safety cable length (17) is extendable.

3. rescue device (1) after the preceding

Claim, wherein the safety cable storage device (15) is designed as a fall arrester and / or as a retractor unit.

4. rescue device (1) after one of the two

preceding claims, wherein in a ground state the safety cable (13) along its safety cable length

(17) is disposed within the safety cable storage device (15).

5. rescue device (1) after the preceding

Claim, wherein the safety cable (13) within the safety cable storage device (15) by means of a fixing means (18) is held such that

Pulling out the safety rope (13) from the

Security rope storage device (15) the fixing means

(18) is detachable.

6. Rescue device (1) according to one of the preceding claims, wherein the safety rope (13) is designed as Aramidseil or steel cable.

7. Rescue device (1) according to one of the preceding claims, wherein the cable clamp (8) is designed such that the cable clamp (8) in a train of

Security rope (13) and down rope (6) against each other the departure rope (6) blocked.

8. rescue device (1) according to any one of the preceding claims, wherein the connecting means (10) has a

Predetermined breaking point (12), which has the tensile strength of <300N.

9. rescue device (1) according to any one of the preceding claims, wherein the connecting means (10) has two

Single ropes (11) and one the single ropes (11)

interconnecting keyring (12) as

Having predetermined breaking point, and one of the two individual cable (11) with the Abfahreinrichtung (9) and another of the two individual cables (11) with the cable clamp (8) is connected.

10. Rescue device (1) according to any one of the preceding claims, wherein the safety length (17) is smaller than the length of the downhill rope (6).

11. rescue device (1) according to one of the preceding claims, wherein the safety rope (13) consists of a

fire-resistant material is designed, which allows functional integrity of the safety cable (13) of> 10 minutes,> 20 minutes or> 30 minutes.

12. Rescue device (1) according to one of the preceding claims, wherein the safety length (17) is <20m, <10m or <5m.

13. Rescue device (1) according to any one of the preceding claims, wherein the tensile strength of the connecting means

(10) is <200N, <100N or <50N.

14. Wind power plant (4) with a nacelle (3) and on the nacelle (3) arranged rescue device 81) according to any one of the preceding claims, wherein the attachment end (7) is fixed to the nacelle (3) as a stop point.