KR101894337B1 - Floating power plant having fire protection construction - Google Patents

Abstract

Disclosed is a floating power generation plant having a flame spread blocking structure. The floating power generation plant includes: a hull storing crude oil or liquefied gas; upper equipment loaded on the upper portion of the hull; and a blocking member blocking that flame or heat caused by an explosion spreads to another place in the case that the explosion takes place either in the hull or the upper equipment, wherein the upper equipment is installed in a space spaced from the hull by means of a stool.

Description

TECHNICAL FIELD [0001] The present invention relates to a floating power plant having a flame propagation preventing structure,

The present invention relates to a floating power generation plant having a flame propagation preventing structure, and more particularly, to a floating power generation plant having a flame propagation preventing structure, and more particularly, The present invention relates to a floating power generation plant having a flame propagation blocking structure configured to block heat transmission.

Floating power plant (FPP) is a facility for generating electricity by installing power generation facilities on a floating floating structure. It is designed to move to a place where electric power supply is needed, Ship.

These float-type power generation plants usually use power generation using crude oil and LNG, and produce electricity through plant facilities including gas turbines, steam turbines, and heat recovery steam generators (HRSGs).

As shown in FIG. 1, the floating power generation plant includes a lower hull structure 2 for storing crude oil or LNG for driving a ship and power generation facilities, and a lower hull structure 2 for supporting the lower hull structure 2 through a top side 4. And an upper equipment 3 such as a gas turbine and a steam turbine which are mounted on the upper part and produce electricity using raw oil or liquefied gas.

At this time, in the case of the top side 4 on which the upper equipment 3 is mounted, the stool 5 maintains a state of being spaced apart from the lower hull structure 2 by a predetermined distance. In order to reduce the weight, Structure can be taken.

In addition, in the case of the upper equipment (3), it may include a liquefaction facility, a liquefaction facility, a vaporizer, a regeneration facility, a high-voltage power transmission facility, and a cargo machinery room (CMR) and a living quarters have.

On the other hand, the lower hull structure (2) of the floating power generation plant includes a cargo tank storing crude oil and LNG, so that it is constructed so as to block the explosion risk of crude oil or liquefied gas.

However, when the crude oil or the liquefied gas explosion occurs in the cargo tank, the flame and the heat due to the explosion immediately rise and are rapidly propagated to the upper equipment 3 through the grating structure of the top side 4, There was a risk of causing serious damage to the upper equipment (3).

In addition, since the upper equipment (3) includes facilities having relatively high risk of explosion, such as a gas turbine, a steam turbine, and a rebuilding facility, there is a risk of a large explosion. In case of a large explosion, It is necessary to design an additional hull structure in which flame and heat of the flame propagate to the lower hull structure 2 to prevent secondary explosion.

SUMMARY OF THE INVENTION An object of the present invention is to provide a flotation power generation system having a flame propagation blocking structure for preventing the propagation of flame and heat between an upper equipment and a lower hull structure when an explosion of crude oil or liquefied gas occurs in a cargo tank, Thereby providing a plant.

According to the present invention, this object is achieved by a hull comprising: a hull for storing crude oil or liquefied gas; An upper equipment mounted on the upper portion of the hull; And the upper equipment is installed in a space separated from the hull by a stool so that when the explosion occurs in either the hull or the upper equipment, the flame and heat generated by the explosion are prevented from propagating to another place And a blocking member for preventing the flame propagating from the flame.

Wherein the shielding member comprises: a horizontal plate forming a surface facing the hull; And an inclined plate rising from an edge of the horizontal plate, wherein an upper end of the inclined surface includes an inclined plate coupled to each other, and flames and heat rising from the hull are moved along a facing surface of the horizontal plate, The flame and the heat falling from the upper equipment may be moved along the slope surface and discharged outside the spaced space.

A manifold for injecting or discharging a raw oil or a liquefied gas from the outside may be provided at the edge of the spaced space, and the blocking member may surround the manifold in the spaced apart space.

The manifold includes: a fixed bearing fixed to an upper end of the hull; And a rotary pipe rotatably coupled to the stationary bearing to form an inlet through which oil or liquefied gas is injected or discharged.

An elevating deck for ascending and descending is formed on the inside of the blocking member, and the manifold is mounted on the elevating deck to adjust the height.

According to the present invention, when an explosion of crude oil or liquefied gas occurs in the cargo tank or an explosion occurs in the upper equipment by blocking the propagation of flame and heat by installing a blocking member in a space separated from the hull, It is possible to provide a floating power generation plant having a flame propagation blocking structure that is configured to block the propagation of flames and heat between the lower hull structure.

1 is a cross-sectional view of a conventional floating natural gas production and storage facility;
2 is a cross-sectional view illustrating a floating power generation plant having a flame propagation blocking structure according to an embodiment of the present invention;
FIG. 3 and FIG. 4 are partial perspective views of a manifold zone in a floating power generation plant having a flame propagation blocking structure according to another embodiment of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

The floating power generation plant having the flame propagation blocking structure of the present invention is configured to block the propagation of flame and heat between the upper equipment and the lower hull structure when explosion of crude oil or liquefied gas occurs in the cargo tank or an explosion occurs in the upper equipment.

2 is a cross-sectional view of a floating power generation plant having a flame propagation-blocking structure according to an embodiment of the present invention, and Figs. 3 and 4 are cross- 1 is a partial perspective view showing a manifold region in a floating power generation plant having a flame propagation blocking structure according to an embodiment.

2, a floating power generation plant 10 having a flame propagation blocking structure according to an embodiment of the present invention is configured such that an explosion of crude oil or liquefied gas occurs in the cargo tank 101, The hull 100, the upper equipment 200, and the shielding member 300, and is configured to block the propagation of flames and heat between the upper equipment 200 and the lower hull 100 when an explosion occurs in the upper equipment 200. [ do.

In the present invention, the floating power generation plant 10 is a facility for generating electric power by mounting a power generation facility on a floating floating structure, such as FPP (Floating Power Plant), BMPP (Barge Mounted Power Plant), FPSO (Floating Production Storage Offloading) , LNG-FPSO (Liquefied Natural Gas-Floating Production Storage Offloading), LNG-FSRU (Liquefied Natural Gas-Floating Storage and Regasification Unit), and the like. Hereinafter, the floating power generation plant 10 will be described as an example of the FPP.

As shown in FIG. 2, the hull 100 is configured to store crude oil or liquefied gas, and a cargo tank 101 for storing crude oil and LNG is formed therein.

The upper equipment 200 is mounted on the upper part of the hull 100 to generate electricity using crude oil or liquefied gas. The upper equipment 200 includes a plant facility such as a gas turbine, a steam turbine, a heat recovery steam generator (HRSG) , A liquefaction plant, a liquefaction plant, a vaporization plant, a regeneration plant, a high-pressure power delivery plant, and a Cargo Machinery Room (CMR) and a Living Quarter.

This upper facility 200 includes a top side 210 supported by a stool 220.

The upper equipment 200 is installed upwards from the hull 100 by a stool 220. That is, a space (hereinafter referred to as 'spacing space 11') spaced apart by the stool 220 is formed between the upper equipment 200 and the hull 100.

As shown in FIG. 1, since the lower hull structure 2 of the conventional FPP 1 includes a cargo tank storing raw oil and LNG, the risk of explosion of crude oil or liquefied gas is blocked multiple times Structure.

However, when explosion of crude oil or liquefied gas occurs in the cargo tank of the conventional FPP (1), the flame and the heat due to the explosion immediately rise to rapidly propagate to the upper equipment (3) through the grating structure of the top side There is a risk that severe re-use of the upper equipment 3 may be caused to such an extent that reuse is difficult.

On the other hand, when a large explosion occurs in the upper equipment 3 of the FPP 1, the flame and heat of the upper equipment 3 may act as a risk factor causing explosion of crude oil or liquefied gas.

As shown in FIG. 2, the floating power generation plant 10 having the flame propagation preventing structure of the present invention can solve the above-mentioned problem by providing the blocking member 300 in the space 11. The shielding member 300 includes a horizontal plate 310 and an inclined plate 320 for shielding the propagation of flame and heat between the hull 100 and the upper equipment 200.

The horizontal plate 310 is configured to form a surface facing the hull 100 (hereinafter, referred to as an 'interface') and spaced upward from the hull 100 in a spacing space 11. The horizontal plate 310 is installed in such a manner that a wide flat plate is sandwiched between the hull 100 and the upper equipment 200. The horizontal plate 310 has its rim portion coupled to the stool 220 to remain spaced from the hull 100.

The inclined plate 320 is configured to form a plurality of inclined surfaces facing the upper equipment 200 and is composed of a plurality of plates rising from the edge of the horizontal plate 310. The upper end of the inclined surface is coupled to the top side 210 of the lower end of the upper equipment 200 while being coupled to each other. The plurality of inclined plates 320 are installed in such a manner that inclined flat plates are hung on the horizontal plate 310 between the hull 100 and the upper equipment 200.

Therefore, when explosion of crude oil or liquefied gas occurs in the cargo tank 101, the flame and the heat which have been raised by the explosion move to the edge of the horizontal plate 310 along the interface and then escape to the outside of the separation space 11 Accordingly, breakage of the upper equipment 200 due to the increase of the flame and the heat can be prevented.

When the explosion or fire occurs in the upper facility 200, the flames and the heat generated by the explosion and fire move to the edge of the slope plate 320 along the slope, and then escape to the outside of the spacing space 11 , So that it is possible to prevent the descending flame and the heat from acting as a cause of the explosion of the cargo tank 101.

As shown in FIG. 2, a partition space 12 is formed between the inclined plate 320 and the horizontal plate 310. The partition space 12 means a space surrounded by the inclined plate 320 and the horizontal plate 310 in the space 11. Although not shown, the compartment space 12 is open at both ends of the blocking member 300, and the sea breeze is normally passed through the compartment space 12 through both open ends.

Therefore, even when excessive heat energy is transmitted to the boundary surface or the inclined surface when the cargo tank 101 or the upper equipment 200 is exposed to an explosion or a fire, the heat energy can be quickly discharged to the outside due to sea breeze passing through the compartment space 12, It is possible to prevent the blocking member 300 from being melted or distorted due to thermal energy, and it is also possible to manufacture the blocking member 300 with a synthetic resin having a relatively low melting point.

Although not shown, a closed space (not shown) may be formed between the inclined plate 320 and the horizontal plate 310. The closed space means a space enclosed by the inclined plate 320 and the horizontal plate 310 and sealed from the outside in the space 11.

A plurality of unit closed spaces (not shown) are formed in the closed space, and digestion pills (not shown) may be filled in the unit closed spaces. When the closed space is formed between the inclined plate 320 and the horizontal plate 310, the boundary plate and the inclined plate 320, which divide the closed space from the outside, are provided with openings for each unit closed space, (Not shown) that is melted or broken by heat energy.

Therefore, when explosion or fire occurs in the cargo tank 101 or the upper equipment 200, when the heat-breaking member at a position adjacent to the fire melts or is broken, the extinguishing chemical filled in the unit closed space is discharged to the outside, There is an advantage that it can be suppressed.

3, a floating power generation plant 20 having a flame propagation blocking structure according to another embodiment of the present invention is configured such that the blocking member 300 surrounds the manifold 110 in a space where the blocking member 300 is spaced apart . ≪ / RTI >

A manifold 110 for injecting or discharging raw oil or liquefied gas from the outside is installed in the floating power generation plant 20 storing crude oil, liquefied gas, and the like in the cargo tank 101.

When the floating power generation plant 20 is made of LNG-FPSO, the manifold 110 is installed at the upper end of the hull 100 at the edge of the spacing space 11 and the fuel supply hose of the LNG bunkering line is connected to the manifold 110 ) To inject or discharge the liquefied gas.

The fuel supply hose of the LNG bunkering line is docked to the inlet of the manifold 110 and the liquefied gas is injected or discharged. In the vicinity of the manifold 110, the area where the blocking member 300 is spaced apart The flame and the heat of the manifold 110 are prevented from moving to the hull 100 and the upper equipment 200 through the space 11 during the explosion of the manifold 110 .

3, the blocking member 300 surrounds the manifold 110 in such a manner that the side for docking with the fuel supply hose is opened, and forms a self-supporting force so that the stool 220 and the upper equipment 200 ). A door 211 is formed in the dock of the upper facility 200 to be opened or closed by being rotated on the upper side of the blocking member 300.

The door 211 is opened in the process of docking the fuel supply hose to the inlet of the manifold 110 so that the risk of collision between the dock and the fuel supply hose It is resolved.

As shown in FIGS. 3 and 4, a lifting deck 120 is formed on the inside of the blocking member 300, and the height of the manifold 110 can be adjusted by mounting the lifting deck 120 on the lifting deck 120.

Although not shown, an installation groove (not shown) is formed in the upper end of the hull 100 to insert the elevating deck 120 in the longitudinal direction. The elevating deck 120 is vertically elevated and lowered by a hydraulic cylinder (not shown) or a linear actuator (not shown) while being inserted into the installation groove.

The hydraulic cylinder or the linear actuator is installed in the installation groove so as to support the elevating deck 120 in the vertical direction, and moves the elevating deck 120 in the vertical direction during driving.

Although not shown, the manifold 110 is connected to a resilient hose (not shown) inside the installation groove. The resilient hose resiliently deforms when the lifting deck 120 is lifted or lowered, and connects the manifold 110 to the channel of the cargo tank 101.

The hydraulic cylinders or linear actuators may be adjusted by a remote control by the manager or operator (at a height that facilitates docking of the fuel supply hose) or may be automatically operated via a device (not shown) that automatically detects the height of the fuel supply hose .

An apparatus for automatically detecting the height of the fuel supply hose may use an optical three-dimensional range sensor, which is used to obtain the shape and position of a three-dimensional object.

When the height of the manifold 110 is precisely adjusted by lifting the lifting deck 120, the fuel supply hose can be quickly and accurately docked to the inlet of the manifold 110, Thereby reducing the risk of explosion in the manifold 110 area.

As shown in FIGS. 3 and 4, the manifold 110 may include a fixed bearing 112 and a rotating pipe 111.

The fixed bearing 112 is configured to rotate the rotary pipe 111 and is fixed to the elevating deck 120. The rotary pipe 111 is rotatably coupled to the fixed bearing 112. The rotary pipe 111 forms an inlet through which crude oil or liquefied gas is injected or discharged.

Although not shown, the rotary pipe 111 is connected to a resilient hose (not shown) from the inside of the installation groove. The resilient hose resiliently deforms when the rotary pipe 111 rotates, and connects the rotary pipe 111 to the duct of the cargo tank 101. [

The rotary pipe 111 is manually rotated by the manager or the operator. The rotation pipe 111 is formed with a mounting portion 111A into which the lever B is inserted and the manager or the operator inserts the lever B into the hole of the mounting portion 111A and applies a force to the lever B, Can be switched.

Although not shown, the rotating pipe 111 may be automatically rotated through a device (not shown) and a driving motor (not shown) that automatically detects the position of the fuel supply hose.

An apparatus for automatically detecting the position of the fuel supply hose may use an optical three-dimensional range sensor used to obtain the shape or position of a three-dimensional object.

When the optical three-dimensional distance sensor senses the position of the fuel supply hose, the control unit (not shown) rotates the rotary pipe 111 through the drive motor (the inlet faces the fuel supply hose). The driving motor transmits rotational force to the rotating pipe 111 through a gear drive.

Since the fuel supply hose can be quickly and accurately docked to the inlet of the manifold 110 by precisely adjusting the direction of the inlet by the rotation of the rotary pipe 111, (110) area.

According to the present invention, since the upper facility is provided with a blocking member in a space separated from the hull to block the propagation of flame and heat, an explosion of crude oil or liquefied gas occurs in the cargo tank or an explosion occurs in the upper equipment It is possible to provide a floating power generation plant having a flame propagation blocking structure that is configured to block the propagation of flames and heat between the lower hull structure.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

10,20: Offshore structures
100: Hull 200: Upper equipment
110: Manifold 210: Topside
101: cargo tank 211: door
111: rotating pipe 220: stool
111A: mounting portion 300: blocking member
B: Lever 310: Horizontal plate
112: fixed bearing 320: inclined plate
120: lift deck
11: Spacing space
12: compartment space

Claims (5)

A hull for storing crude oil or liquefied gas;
An upper equipment mounted on the upper portion of the hull; And
The upper equipment is installed in a space separated from the hull by a stool and when the explosion occurs in either the hull or the upper equipment, the flame and the heat caused by the explosion are prevented from propagating to another place Blocking member
Lt; / RTI >
The blocking member
A horizontal plate which forms a surface facing the hull; And
And an upper end of the inclined surface is formed to be engaged with an inclined plate which forms a plurality of unit closed spaces between the horizontal plate and the horizontal plate,
/ RTI >
The unit-
Containing an opening in the form of an enclosed fire extinguisher and closed by a heat-dissipating member that is melted or destroyed by heat energy
And a flame propagation preventing structure. delete The method according to claim 1,
A manifold for injecting or discharging a raw oil or a liquefied gas from the outside is installed at an edge portion of the spaced space,
Wherein the blocking member surrounds the manifold in the spaced apart space. ≪ Desc / Clms Page number 19 > The method of claim 3,
Wherein the manifold comprises:
A fixed bearing fixed to an upper end of the hull; And
And a rotary pipe rotatably coupled to the stationary bearing to form an inlet through which oil or liquefied gas is injected or discharged. The method of claim 3,
An elevating deck for ascending and descending is formed inside the blocking member,
Wherein the manifold is mounted on the elevating deck to adjust a height of the flap.

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