DE3321618A1 - DEVICE FOR A WORK EQUIPMENT EFFECTIVE AS A SEMI-DIVER - Google Patents

Description

Blohm + Voss

Hamburg, June 13th, 1983

Device for a working device that is effective as a semi-submersible

- £ Γ - y Hamburg, 13.06.1983

Facility for a semi-submersible
effective work equipment

The invention relates to a device for a platform and there are lift-generating pillars arranged underneath, working device effective as a semi-submersible for the purpose of limiting the trim angle in the event of a leakage occurring in semi-submersion with annexes provided on both outer sides of the outer pillars; ' of such an arrangement and size that in the event of a leak E.g. a rear pillar, due to the front attachments or add-on parts that are then submerged, infoige of the front arising Propulsion loss (displacement of the center of lift) of the Trimmwinkel is limited to the desired dimension. The limitation of the angle of inclination in the event of damage (leaks) ' of working equipment effective as a semi-submersible is used by some national Administrations, e.g. NMD (Oslo) required. To the known Solutions to this problem include, for example, add-ons as floats, which are fully immersed in an intact, semi-submerged swimming position and increasingly emerge when the platform is inclined, creating a self-aligning torque. These floats are relatively schve because of the water pressure acting on their walls and their connection to the on-board pipe system is expensive, especially when retrofitted.

Therefore, the invention is based on the object of the construction of such To simplify facilities in the form of additions to the

-if-

to reduce structural effort. The solution to this problem is described in claim 1. Accordingly, according to the invention, the types th above the surfaced floating position of the platform empty u always flooded when the swimming position is submerged. The connection to there

1 on-board pipe system is superfluous because the extension is flooded when submerged by gravity and emptied also when surfacing. For the intended stabilization Effect are therefore only the measures described in claim 1 necessary.

The advantages of the invention are the elimination of the connection to the on-board pipe system and the smaller wall thicknesses of the attachments Further expedient training within the scope of the invention are c:

i refer to subclaims. The invention is hereinafter referred to as ar explained in more detail by means of examples shown in the drawings.! Show it:

Fig. 1 shows a device according to the invention according to claim 1 and in the event of a leak on one of the columns and

Fig. 2-5 like Fig. 1, but in the design according to claim. In detail, Figs. 1 and 2 show a semi-submerged longitudinally with attachments 1, locking devices 2, ventilation openings and a remote control 4 for the locking device 2. Fig shows a semi-submersible in a longitudinal section with a leak 5 'in the column 5. This results in the In t ac t swallowing layer 6 in ab When submerged, the final swimming age is 7. With 8 the water is in the attachments 1 that in the drawing on the right due to the gesch This locking device 2, which cannot drain, is designated · FIG. 4 shows a semi-submerged in longitudinal section and opened up

COPY

The floating layer 10 is shown with empty attachments 9-also open at the bottom Fig. 5 shows a semi-submerged in longitudinal section but in the submerged state (working depth) with attachments that are open at the top and are used, for example, as a chain case 11.

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Claims (4)

Claims 1. A device for a buoyancy generating pillars consisting of a platform and underneath it exists as a semi-submersible working device for the purpose of limiting the trim angle b of a leak occurring in a semi-submerged position with attachments provided on both sides of the outer pillars, of such an arrangement and size that in the event of a leak, e.g. in a rear pillar, the trim angle is limited to the desired amount due to the front attachments or attachment parts then emerging as a result of the loss of drive occurring at the front (shifting of the center of lift), which is indicated by g that the attachments (1) are freely flooded in a manner known per se in diving boats, but in the present case, at the highest point in the trim position, an always open one
Ventilation (3) and at the lowest point a locking device (2) provided with remote control. 2. Device according to claim 1, characterized in that di Remote control is triggered by the trim angle size. 3. Device according to claims 1 or 2, characterized in that the attachments (1) at the top completely or partially open uu e.g. can be used as a chain case (11). "copy 4. Device according to one of claims 1 to 3, characterized in that that in a semi-submersible with two elongated floating bodies arranged at the foot of the columns, the attachments (1) are provided on the floats (12).