KR20140003514U - Drain apparatus for ocean structure - Google Patents

Abstract

A drain device of a marine structure is disclosed.
A drainage device of a marine structure includes a drain gutter box installed at a lower portion of a deck of an offshore structure and having a drain fluid inclined surface formed on an upper surface of the drainage gutter box and a drain drain fluid drain disposed below the drain gutter box, And a drain cap for covering the drain trench.

Description

[0001] DRAIN APPARATUS FOR OCEAN STRUCTURE [0002]

The present invention relates to a drain device for an offshore structure for draining a drain fluid remaining on a deck of an offshore structure. More specifically, a drain trough box in which a drain fluid inclined surface is formed on the lower portion of the deck, The water drain structure of the drain trough does not generate a gas back flow and is safe and requires no additional U-Trap. Therefore, The present invention relates to a drain device for an offshore structure capable of reducing cost.

Generally, various offshore structures including floating production storage and offloading (FPSO) and fixed oceanic facilities (Fixed Platform) are provided with drainage for treating wastewater generated in the process of producing oil or sewage, rainwater, Device is provided.

Korean Utility Model Open Publication No. 2009-04540 (Daewoo Shipbuilding & Marine Engineering)

1 is a longitudinal sectional view showing an example of a drain device for processing a drain fluid.

Referring to FIG. 1, in one example of a drain device, a deck oil & water contaminated open drain box 10 is installed below a deck 1 of an offshore structure, A drain trench 20 is provided. The drain trough (20) is provided with a filter (30) for filtering off foreign matter.

Drain fluid includes wastewater generated in the process of producing oil, wastewater containing sewage, rainwater, and fire water falling on the deck.

A grating panel 50 is installed at the upper part of the drain gutter box 10 by a support 40 so as to have the same height as the deck 1. A plurality of drain fluid inflow holes 51 are formed in the grating panel 50.

Although not shown in the drawings, in another example of the drain device for treating a drain fluid, a drain trough box is formed in a rectangular shape, and a U-Trap structure is provided to prevent back flow of gas.

However, in the drain device having such a structure, when a large amount of drain fluid flows into the drain trough box at a time, the drain fluid can not be drained quickly and overflows and the gas flows backward. In addition, a drain trough of a half- It is difficult to apply a water seal structure to the drain trough itself, so that it is difficult to add water tightness on the drain line, and additional cleaning out point is installed on the drain line, It can be assumed.

Accordingly, in the present invention, a drain trough box having a drain fluid inclined surface formed at the lower portion of the deck is installed to quickly drain the drain fluid, and the water seal structure of the drain trough allows the gas back flow is not generated, and a drain device of an offshore structure which can easily be constructed and cost can be saved due to no need for an additional U-trap.

In order to achieve the above object, the present invention provides a drain structure for an offshore structure, comprising: a drain gutter box installed below a deck of an offshore structure and having a slope of a drain fluid formed on an upper surface thereof; A drain trough positioned above the bottom surface of the drain trough box to prevent back flow of gas, and a drain cap covering the drain trough.

And a grating panel having the same height as the deck is installed on the upper portion of the drain gutter box by a support bracket.

And the grating panel is disposed not higher than the deck surface.

A support panel is vertically installed on a bottom surface of the drain gutter box, and the drain cap is detachably installed on the support panel.

The drain fluid includes wastewater mixed with oil, wastewater, rainwater, water contained in a fire water or liquid, and the offshore structure includes FPSO, Fixed Platform, drill ship or leash line .

As described above, according to the present invention, a drain trough box in which a drain fluid inclined surface is formed at the bottom of the deck is rapidly drained even when a large amount of drain fluid is introduced at a time, and by the water seal structure of the drain trough Gas back flow is not generated, and it is safe, and additional U-Trap is unnecessary, so it is easy to construct and the construction cost can be reduced.

In addition, the present design removes the u-seal and clean out points on the additional line by removing the removable cap to enable clean out.

1 is a longitudinal sectional view showing an example of a drain device for treating a drain fluid;
2 is a longitudinal sectional view showing a drain device of a marine structure according to a preferred embodiment of the present invention
3 is a sectional view taken along the line AA in Fig. 2
4 is a sectional view taken along line BB of Fig.
5 is a longitudinal sectional view showing the drainage device of a marine structure according to a preferred embodiment of the present invention more specifically.
6 is a sectional view taken along the line CC in Fig. 5
7 is a cross-sectional view taken along line DD of Fig. 5

In order to fully understand the advantages of the present invention, its operational advantages, and the objects attained by the practice of the present invention, reference should be made to the accompanying drawings, which illustrate preferred embodiments of the present invention, and to the description in the accompanying drawings.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

2 is a cross-sectional view taken along the line AA in Fig. 2, Fig. 4 is a sectional view taken along the line BB in Fig. 2, Fig. 5 is a cross- FIG. 6 is a cross-sectional view taken along the line CC of FIG. 5, and FIG. 7 is a cross-sectional view taken along the line DD of FIG.

Referring to the drawings, the drain device 100 of a marine structure according to a preferred embodiment of the present invention includes a drain (not shown) A drain though box 110 is installed at a lower portion of the drain gutter box 110 to drain the drain fluid and is positioned higher than a bottom surface 111 of the drain gutter box 110 to form a gas back and a drain cap 130 for covering the drain trench 120. The drain trench 120 is formed on the drain trench 120,

Here, the drain fluid includes wastewater generated in the process of producing oil, wastewater containing sewage, rainwater, and fire water falling on the deck.

A grating panel 140 having the same height as the deck 1 is installed on the drain trough 120 by a support bracket 150.

The drain canister box 110 can be manufactured in a rectangular box shape in which the upper side of the upper side has a longer horizontal dimension and a vertical dimension of which is relatively shorter than the horizontal dimension.

A plurality of drain holes 141 are formed in the grating panel 140.

The grating panel 140 is disposed not to be higher than the surface of the deck 1 so as not to obstruct the movement of the equipment and the walking of the operator.

A support panel 111a is vertically installed on a bottom surface 111 of the drain gutter box 110 and the drain cap 160 is detachably installed on the support panel 111a. A drain hole 111b is formed in the support panel 111a.

The seal trap structure of the drain gutter box 110 serves to prevent the gas contained in the drain fluid from flowing backward from the drain line by water pressure.

An elbow and a flange may be coupled to a lower portion of the drain gutter box 110 for ease of connection with a pipe installed in the existing gutter box 110.

The drain fluid includes wastewater mixed with oil, wastewater, rainwater, water contained in the water or liquid, and the offshore structure includes FPSO, Fixed Platform, drill ship or leash line .

In the drain device 100 of the marine structure according to the preferred embodiment of the present invention configured as described above,

A drain fluid is introduced into a drain though box 110 through a drain hole 141 of the grating panel 140 and a drain fluid inclined surface is formed on an upper surface of the drain though box 110. [ the drain fluid can be quickly drained even when a large amount of drain fluid flows into the drain gutter box 110 at the same time.

Also, the gas back flow does not occur due to the water seal structure of the drain trough.

As described above, according to the present invention, a drain trough box in which a drain fluid inclined surface is formed at the bottom of the deck is rapidly drained even when a large amount of drain fluid is introduced at a time, and by the water seal structure of the drain trough Because gas back flow does not occur, it is safe and requires no additional U-Trap, so it is easy to install and construction cost can be saved.

In addition, the present design removes the u-seal and clean out points on the additional line by removing the removable cap to enable clean out.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

1: Deck
100: drain device
110: drain though box
111: bottom surface
111a: Support panel
115: drain fluid inclined surface
120: drain trough
130: drain cap
140: Grating panel
150: Support bracket
160: drain cap

Claims (5)

A drain drain trough box installed below the deck of the offshore structure and having a drain fluid inclined surface formed on the upper surface thereof;
A drain trough installed at a lower portion of the drain trough box to drain the drain fluid and positioned higher than a bottom surface of the drain trough box to prevent back flow of gas; And
And a drain cap covering the drain trough. The method according to claim 1,
And a grating panel having the same height as the deck is installed on the upper portion of the drain gutter box by a support bracket. The method of claim 2,
Wherein the grating panel is disposed not higher than the surface of the deck. The method according to claim 1,
Wherein a drain pan is formed on a bottom surface of the drain trough, and a drain panel is detachably installed on the support panel. The method according to claim 1,
The drain fluid includes wastewater mixed with oil, wastewater, rainwater, water contained in the water or liquid,
The offshore structure may include an FPSO, a fixed platform, a drill ship or a rigging line.

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