KR20230092124A - Offshore plant that operated in response to waves - Google Patents

Abstract

An object to be solved by the present invention is to provide a marine production plant that operates in response to waves capable of achieving stable operation of the marine production plant by utilizing a davit device.
The marine production plant operating in response to the waves of the present invention includes a floating body floating on the sea surface, a wire connected to the floating body, a winch unit for winding or unwinding the wire so that the floating body rises and falls, the floating body and the winch At least one main pulley for guiding and supporting the wire is rotatably coupled between the units, and includes a first dabit and a second dabit spaced apart from each other, the first dabit and the second dabit, respectively. A sensor for detecting a change in height of the sea level changed by waves, and a signal received from the sensor to cancel the movement of the hull according to the change in height of the sea level in the first dabit and the second dabit. Includes a control unit for changing the direction of the hull.

Description

Offshore plant that operated in response to waves}

The present invention relates to an offshore production plant that operates in response to waves.

A plurality of davit devices provided in the offshore production plant are installed on the outer edge of the deck of the offshore production plant to support fenders filled with compressed air, and prevent collisions with rocks or other ships when contacting rocks or other ships. It can be driven to lower the fender that serves as a shock absorber.

In this case, a hydraulic supply device for providing hydraulic energy may be integrally connected to the davit device. In general, the hydraulic supply device may operate a hydraulic pump through an electric motor to provide power to the davit device.

For example, the davit device may operate the winch unit around which the wire is wound by using hydraulic energy supplied from the hydraulic supply device as power, and through this, the fender connected to the wire may be raised and lowered.

Republic of Korea Patent Registration No. 10-1984917 (May 27, 2019)

On the other hand, the davit device is generally limited to lifting the fender, and the utilization of the equipment is low. In addition, stable operation is required for offshore production plants so that risks to external environments such as waves can be reduced. Accordingly, it is necessary to improve the offshore production plant in order to increase the utilization of the davit device and to stably operate the offshore production plant.

An object to be solved by the present invention is to provide a marine production plant that operates in response to waves capable of achieving stable operation of the marine production plant by utilizing a davit device.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

One aspect of the offshore production plant operated in response to the waves of the present invention for achieving the above object is a floating body floating on the sea surface, a wire connected to the floating body, and the wire so that the floating body rises and falls. A dabit comprising a winch unit for winding or unwinding, at least one main pulley rotatably coupled to guide and support the wire between the floating body and the winch unit, and including a first dabit and a second dabit spaced apart from each other. unit, a sensing unit for detecting a change in height of the sea level that is changed by waves in each of the first dabit and the second dabit, and receiving a signal from the sensing unit, It includes a control unit for changing the direction of the hull to offset the movement of the hull according to the change in height.

It is provided on the hull and further includes a working unit including at least one of a loading line, an unloading line, mooring equipment, and mooring equipment, wherein the first dabit and the second dabit are spaced apart in the width direction of the hull, , The control unit changes the direction of the hull in the second dabit direction when the measurement value of the sensing unit detected at the position of the first dabit is greater than the measured value detected at the position of the second dabit, When the height of the sea level is greater than or equal to a predetermined value, the movement of the fluid passing through the work unit may be stopped or the operation of the work unit may be stopped.

The present invention further includes a rudder for changing the direction of the hull, a thruster for moving the direction of the hull due to the flow of seawater, and a turret provided in the bow portion for changing the direction of the hull, wherein the first davit , A first bow dabit and a first stern dabit spaced apart in the longitudinal direction of the hull, and the second dabit includes a second bow dabit and a second stern dabit spaced apart in the longitudinal direction of the hull, The control unit may change at least one of the rudder, the thruster, and the turret to change the direction of the hull according to a change in wave height in the first bow davit, the first stern davit, the second bow davit, and the second stern davit. You can control one.

It is moved up and down by receiving the guide in the longitudinal direction of the comb, the sensing unit is installed, and a block having a small load compared to the floating body is further included, and when the sea level is lowered compared to the reference value constituting the initial value of the sea level, the The floating body is moved downward along the sea level by its own weight, the block is pulled by the floating body and moved upward, and when the sea level rises in comparison to the reference value, the water level of the sea level is increased so that the floating body floats on the sea level. It is moved upward along the block, and the block may be moved downward so that the tension of the wire generated between the block and the floating body is maintained.

The sensing unit includes at least one of a distance sensor or a vision sensor for sensing a change in height of the block, and further includes an auxiliary sensing unit provided in the floating body to measure internal pressure or air pressure of the floating body, and the control unit , If a signal is received from the auxiliary sensing unit and the pressure or air pressure is lower than the reference value, a signal for lifting the floating body may be generated.

Details of other embodiments are included in the detailed description and drawings.

The offshore production plant operating in response to waves according to the present invention can change the direction of the offshore production plant according to the change in the height and flow of the wave, or stop the operation of work units such as loading lines, so the stability of the offshore production plant can be secured, and the change in wave height can be detected using a davit device, which can improve the utilization of the equipment.

1 is a view showing the side of an offshore production plant operated in response to waves according to a first embodiment of the present invention.
Figure 2 is a view showing the upper part of the offshore production plant operated in response to waves according to the first embodiment of the present invention.
Figure 3 is a side view showing a block and a cross section of an offshore production plant operated in response to waves according to a first embodiment of the present invention.
4 is a diagram illustrating the movement of a floating body in an offshore production plant operating in response to waves according to a first embodiment of the present invention.
5 is a view showing the direction change of an offshore production plant operated in response to waves according to a first embodiment of the present invention.
6 is a view showing an auxiliary sensor in a marine production plant operating in response to waves according to a first embodiment of the present invention.
7 is a view showing a state in which an offshore production plant operating in response to waves according to a first embodiment of the present invention is anchored on a quay wall.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, only the present embodiments make the disclosure of the present invention complete, and the common knowledge in the art to which the present invention belongs It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same or corresponding components regardless of reference numerals are given the same reference numerals, Description is omitted.

1 is a side view of an offshore production plant operated in response to waves according to a first embodiment of the present invention, and FIG. 2 is a view showing a side view of an offshore production plant operated in response to waves according to a first embodiment of the present invention. It is a drawing showing the upper part of And Figure 3 is a side view showing the opposite part and the block of the offshore production plant operated in response to waves according to the first embodiment of the present invention, Figure 4 is operated in response to waves according to the first embodiment of the present invention It is a diagram shown to explain the movement of a floating body in an offshore production plant.

In addition, FIG. 5 is a view showing the change of direction of an offshore production plant operated in response to waves according to the first embodiment of the present invention, and FIG. 6 is an offshore operated operation in response to waves according to the first embodiment of the present invention. It is a view showing an auxiliary sensor in the production plant, and FIG. 7 is a view showing a state in which the offshore production plant operating in response to waves according to the first embodiment of the present invention is anchored at a quay.

1 to 7, the offshore production plant 10 operated in response to waves according to an embodiment of the present invention includes a hull 11, a floating body 110, a wire 120, and a winch unit 130 ), a contrast unit 140, a block 150, a sensing unit 160, a control unit 170, and an auxiliary sensing unit 180.

Prior to the description, the wire 120, the winch unit 130, the davit unit 140, and the block 150 of this embodiment may form a davit device. In other words, the present embodiment can utilize a general fender and davit device without the need to additionally manufacture a separate device for cost reduction. Hereinafter, the floating body 110 is made of a fender, the wire 120, the winch part 130 and the davit part 140 are included in the davit device, and the davit device is on the deck 11A in the hull 11 Explain what is being prepared.

However, this is only one embodiment and is not limited thereto, and a general fender and davit device may be provided separately. Alternatively, various modifications are possible as various devices including a wire, a winch, and a pulley may be utilized separately from the davit device.

In addition, each of the first bow davit (140PF), the first stern davit (140PS), the second bow davit (140SF), and the second stern davit (140SS) of the davit unit 140 described later is exemplified, but is limited thereto It is not intended, and it is mentioned that each may be provided in plurality for detailed control of the offshore production plant 10 .

The offshore production plant 10 will be described with reference to the drawings as follows.

First, the hull 11 is a hull of a large structure in which a residence 11B is illustratively provided on the deck 11A, and the present embodiment is not limited to an offshore production plant, and various structures floating on the sea are illustratively It may be the hull of a ship, but is not limited thereto. In addition, a propeller (PP) may be installed at the stern of the hull 11, and it may be operated by the main thrust generated by the propeller (PP).

In addition, the hull 11 may be provided with a rudder RD for changing the direction of the offshore production plant 10 and a thruster TS capable of moving the direction of the hull 11 by generating seawater flow. Here, the rudder (RD) may be provided at the stern and may be provided at the rear of the propeller (PP). And the thruster (TS) may be illustratively provided in the bow, the type is not limited, and various forms such as an azimuth type or a tunnel type are illustratively possible. A detailed description of these rudder (RD) and thruster (TS) will be omitted in lieu of known mechanisms.

In addition, a working part W (see FIG. 8) including at least one of a loading line, an unloading line, mooring equipment, and mooring equipment may be provided inside the hull 11 and/or on the deck 11A. . The shape, specific location, loading, unloading, mooring operations and mechanisms of the working portion W are omitted in lieu of known techniques. However, in this embodiment, the work unit W may be controlled by the control unit 170 so that work may be stopped according to deteriorating sea conditions, which will be described later.

The floating body 110 may be a fender. The fender may be positioned between two objects (which may be an offshore production plant and a ship) to mitigate the impact resulting from a collision to form a fender that protects the object. In addition, the size and weight of the floating body 110 may be formed corresponding to the offshore production plant 10 made of a large structure, so that the load of the floating body 110 may be made in ton units (eg, 1 ton or more). there is. However, when the floating body 110 is made of a structure that floats on the sea level and is lowered to the sea level by a davit device, the load of the floating body 110 is supported on the sea level and can be maintained in a floating state. And, as will be described later, briefly mentioned, the floating body 110 has a large weight compared to the block 150, and can pull the block 150 according to the change in the height of the sea level.

In addition, the floating body 110 may be provided in a state of floating on the sea surface or placed on the hull 11 (it may be seated and stored in a cradle) by the operation of the davit device. . However, the floating body 110 of this embodiment is not limited to the function of a fender because the offshore production plant 10 changes direction to respond to waves or temporarily suspends the operation of equipment to avoid a dangerous situation. . Therefore, the floating body 110 can be lowered to the surface of the sea even in a state in which it does not perform a fender function.

In addition, as mentioned above, the davit device for lifting the floating body 110 or lowering it to the sea level may include the wire 120, the winch unit 130, the davit unit 140, and the block 150. A detailed description of the mechanism for lifting and lowering the fender of the davit device will be omitted in lieu of the known technology, and will be mainly described on points that are different from those of the prior art. However, it should be noted that the number of main pulleys 142 and the structure of the block 150 may be modified according to a modified example of the embodiment, and another embodiment may be possible by combining known technologies if it does not conflict with the present embodiment.

In the davit device, the wire 120 is configured to connect the floating body 110, and one end may be connected to the floating body 110 and the other end may be connected to the winch unit 130. The wire 120 may be provided between the floating body 110 and the block 150 via a main pulley 142 to be described later, while being guided on a moving path of the wire 120 by the main pulley 142. The winch unit 130 may be wound or unwound.

For example, the wire 120 may be wound around three main pulleys 142 and two auxiliary pulleys 151 to support a block 150 to be described later, as shown in FIG. 3, at which time the auxiliary pulley 151 ) can form a shape capable of lifting the block 150 upward. In addition, the wire 120 may maintain a state in which the wire 120 is not stretched between the floating body 110 and the block 150 but is tensed by the load of the floating body 110 and the block 150 .

This is because the floating body 110 has a higher load than the block 150, and when the floating body 110 is lowered along the sea level, the block 150 is pulled and the wire 120 is tensioned. Alternatively, when the sea level rises and the floating body 110 rises, the wire 120 between the block 150 and the floating body 110 may be temporarily loosened, but the block 150 is lowered by the load of the block 150. This is because the wire 120 between the floating body 110 and the block 150 is in a tense state. In this way, the wire 120 can be continuously maintained in a tensioned state between the floating body 110 and the block 150 .

The winch unit 130 is configured to adjust the length of the wire 120 so that the floating body 110 can be lowered to the sea level or stored in the hull 11, and the wire 120 can be moved up and down. 120) can be wound or unwound. Illustratively, the winch unit 130, although not shown in the drawings, is provided with a winch drum and a drive unit (which may be a motor capable of forward and reverse rotation), and the winch drum is rotated by the rotational force of the drive unit, and the wire 120 can be wound or unwound. In addition, if the position of the winch unit 130 is not particularly limited, for example, it may be provided adjacent to the comb unit 140, and may be provided below the comb unit 140.

In addition, although not shown in this embodiment, a mechanical auto-tensioner (MAT) may be provided in the wire 120 and/or the winch unit 130. For example, the auto tensioner may be provided with a tension arm, a tension pulley, an idle pulley, etc. to absorb a change in tension that may be changed due to deterioration of the wire 120 .

In the davit part 140, at least one main pulley 142 for guiding and supporting the wire 120 between the floating body 110 and the winch part 130 may be rotatably coupled. The davit part 140 may have a wire 120 connected to one side and a winch part 130 provided to the other side, and may be installed on the deck 11A of the hull 11. For example, the comb portion 140 may include an extension member 141 , a main pulley 142 , and a guide portion 143 .

The extension member 141 may form the upper end of the dabit part 140, and for example, the upper end of the dabit part 140 may form a structure bent in a direction facing the sea level. That is, the extension member 141 forms a structure bent outward from the hull 11, and the main pulley 142 supporting the wire 120 may be provided in this structure. Accordingly, the wire 120 can be prevented from contacting the hull 11, and damage to the wire 120 due to friction between the hull 11 and the wire 120 can be prevented.

The main pulley 142, as a configuration for supporting the wire 120, may be provided on the extension member 141. In particular, since the main pulley 142 may be provided between the floating body 110 and the block 150 on the path of the wire 120, the position of the wire 120 when the floating body 110 and the block 150 move. can be maintained, and twisting of the wire 120 can be prevented. In addition, since the main pulley 142 can guide the wire 120 when the wire 120 is wound or unwound by the winch unit 130, the wire 120 can move smoothly.

The number and size of the main pulleys 142 may be set according to the block 150 and the extension member 141 . For example, referring to FIG. 3 , three main pulleys 142 may be provided in the extension member 141 , and a wire 120 may be wound around each main pulley 142 .

The guide part 143 may guide the movement of the block 150 and may extend in the vertical direction. For example, the guide unit 143 may guide a roller (not shown) of the block 150 .

In particular, the davit part 140 of this embodiment, so that the sensor 160 can detect the height change of the wave, which can be formed differently depending on the position of the bow, stern, port and starboard of the hull 11, the bow , can be provided on the stern, port and starboard sides, respectively. For example, the dabit unit 140 may include first dabits 140PF and 140PS and second dabits 140SF and 140SS.

Specifically, the first dabits 140PF and 140PS may be spaced apart from the second davits 140SF and 140SS in the width direction, and may be exemplarily provided on the port side. And the first davit (140PF, 140PS) may be provided in plurality to be spaced apart in the longitudinal direction of the offshore production plant 10, spaced apart in the longitudinal direction of the hull 11 and the first bow dabit (140PF) provided at the bow and a first stern davit (140PS) provided at the stern.

The second dabits 140SF and 140SS are spaced apart from the first davits 140PF and 140PS in the width direction and may be illustratively provided on the starboard side. In addition, the second davits 140SF and 140SS may be provided in plural spaced apart in the longitudinal direction of the hull 11, so that the second bow davit 140SF provided at the bow and the second stern dabit 140SS provided at the stern. ) may be included.

The first dabits 140PF and 140PS and the second dabits 140SF and 140SS may have the same functions and actions other than a positional difference. In other words, the first dabits 140PF and 140PS and the second dabits 140SF and 140SS detect whether the direction of the offshore production plant 10 needs to be changed as the size and/or direction of the wave changes at any position on the hull 11 It may be provided in various locations so that the unit 160 and/or the control unit 170 can sense/control it.

The block 150 has a variable height according to the movement of the floating body 110 according to the change in the height of the sea level, and may move along the guide part 143 in conjunction with the movement of the floating body 110 . In addition, the block 150 may have a wire 120 connected to interlock with the floating body 110, may have a small load compared to the floating body 110, and may have an auxiliary pulley 151 provided.

One or more auxiliary pulleys 151 may be provided in the block 150 between one or more main pulleys 142 . At this time, the wire 120 may be provided while passing through the secondary pulley 151 and the main pulley 142 in turn, and the main pulley 142 and the secondary pulley 151 may guide the wire 120 while rotating independently. can

For example, the secondary pulley 151 may be provided with two, as shown in FIG. 3, so that the block 150 is lifted upward by the wire 120 passing through the three main pulleys 142, or can be put down

For example, as shown in FIG. 4 , when the sea level at which the floating body 110 is located is lowered due to a wave or the like in comparison to the reference value forming the initial value BL, the floating body 110 moves the water level of the sea level by its own weight. It can be moved to the bottom along the . At this time, the block 150 is pulled by the floating body 110 and moved upward, and may be positioned at a height 'H1' higher than the reference value. In this way, the changed height 'H1' compared to the reference value may correspond to a height at which the floating body 110 is lowered by a load along the sea level. The height change of the wave may be sensed by the sensing unit 160 and detected/calculated as a height change of the block 150 .

Of course, contrary to the above operation, when the sea level rises compared to the reference value, the floating body 110 can be moved upward along the sea level so that it floats on the sea level, and the block 150 is between the floating body 110 and the floating body 110. It can be moved downward to maintain the tension of the wire 120 generated.

However, as the block 150 and the auxiliary pulley 151 of this embodiment are omitted, and the wire 120 may be guided by the main pulley 142, various configuration changes are possible.

The sensing unit 160 is a component that detects a change in height of the sea level that is changed by waves in each of the first davits 140PF and 140PS and the second davits 140SF and 140SS. For example, the sensing unit 160 may be provided on the block 150, and by measuring the moving distance of the block 150, the height change of the sea level changed by the waves based on the position of the contrast unit 140 can detect

Illustratively, the detector 160 may include at least one of a distance sensor and a vision sensor that detects a change in height of the block 150 . In addition, the sensor 160 detects the change in the height of the wave, as described with reference to FIG. 4, the moving distance of the block 150 is changed in response to the change in the height of the wave, and redundant description is omitted. let it do However, the sensing unit 160 may have various configurations other than a distance sensor or a vision sensor.

The sensing unit 160 detects a change in height of the sea level in each of the first davits 140PF and 140PS and the second davits 140SF and 140SS among the davits 140, A relative wave height/magnitude change data signal of the second dabits 140SF and 140SS may be transmitted to the controller 170.

The controller 170 is a component that controls the operation/driving of each component to change the direction of the offshore production plant 10 according to sea conditions, and may receive a signal from the sensor 160 . Illustratively, the control unit 170 may be an operation control system for operation control of the offshore production plant 10, and may be provided in the residence 11B. However, the control unit 170 is not limited to the navigation system because various modifications are possible, and modifications of various embodiments are possible as long as they do not conflict with the present embodiment. In other words, the control unit 170 may perform control of a generator (not shown), a rudder (RD), and a thruster (TS) for operation of the offshore production plant 10, as well as control of a davit device, To this end, various modifications are possible, such as being provided as one system or being divided into several systems to achieve individual control.

The control unit 170 receives a signal from the sensor 160, and cancels the movement of the hull 11 according to the change in the height of the sea level in the first davits 140PF and 140PS and the second davits 140SF and 140SS. The direction of the hull 11 can be changed.

Exemplarily, the controller 170 receives a signal from the sensor 160 for control according to a change in sea conditions, and changes the height of the sea level among the first dabits 140PF and 140PS and the second dabits 140SF and 140SS. It is determined that the position change of the hull 11 due to the wave is necessary at a position where is greater, and the direction of the hull 11 can be changed in a direction in which damage to the drilling line or the like can be reduced.

In addition, the control unit 170 is not limited to changing the direction of the hull 11 at a position where the change in height of the sea level is greater among the first davits 140PF and 140PS and the second davits 140SF and 140SS, which will be described later. Briefly, control to stop the work of the work unit W may be performed.

To this end, the control unit 170 may receive signals from the detector 160 at the positions of the first davits 140PF and 140PS and the second davits 140SF and 140SS, which are divided into port and starboard. However, for more precise control, the control unit 170 changes the height of the wave in the first bow dabit (140PF), the first stern davit (140PS), the second bow davit (140SF), and the second stern davit (140SS). Depending on, that is, the direction of the hull 11 may be controlled according to the change in wave height according to the position in the port side, starboard side, stern and bow, without being divided into only the port side and the starboard side.

For example, the control unit 170, if the measured value of the sensor 160 detected at the position of the first dabit 140PF or 140PS is greater than the measured value detected at the position of the second dabit 140SF or 140SS , It is possible to change the direction of the hull 11 so that the height change of the wave can correspond to the large direction.

In this regard, referring to FIG. 5, the intensity and/or wave power of the wave generated at the position of the first bow davit 140PF is the intensity and/or wave power generated at the position of the second bow davit 140SF. It may be larger compared to the size of . Then, the height of the wave generated at the position of the first bow davit (140PF) is greater than the height of the wave generated at the position of the second bow davit (140SF), and the block according to the height and / or height difference of these waves A change in the moving distance of the object 150 may be detected by the sensing unit 160 and a signal may be transmitted to the controller 170 .

For example, if the size of the wave force generated at the position of the first bow dabit (140PF) is large compared to the second bow davit (140SF), the offshore production plant 10 may starboard (second bow davit (140SF) by wave power) Then, the drilling line (not shown) provided on the hull 11 is misaligned with the hull 11 and damaged, or another ship connected to the offshore production plant 10 (eg, an LNG ship, etc.) There is a concern that problems may occur in loading/unloading operations due to a misalignment of the connection with the ) In order to reduce such concerns, it is necessary to move the direction of the offshore production plant 10 in the opposite direction as much as it is moved by the waves. There is, that is, it is necessary to offset the movement of the hull 11 caused by waves.

To this end, the controller 170 may control the direction of the offshore production plant 10 . For example, the control unit 170 determines that the flow of seawater is changed at a position where the change in the height of the wave is greater, and a turret (a rotary mooring device provided at the bow part and capable of changing the direction of the hull), etc. It can be performed by controlling and moving/converting the bow of the hull 11 in the left and right directions. In addition, it is not limited to changing the direction of the hull 11 by controlling the turret, and various modifications are possible as the hull 11 can be controlled by controlling a rudder or thruster.

In addition, the control unit 170 of this embodiment, when the change in the height of the wave detected by the sensor 160 is included in the danger range, the work of the work unit (W) to stop the loading / unloading work, etc. It is possible to change various configurations, such as stopping or putting the floating body 110 lowered on the sea level on the hull 11.

Here, the risk range of the change in wave height may be a change in the height of the sea level that may cause danger to the work for each task mentioned above. In addition, this change value may vary according to the type of ship or type of work, and may be set to cope with a known dangerous situation.

In addition, the work interruption of the work unit W mentioned in this embodiment, for example, to stop the loading / unloading work, disconnect the line, block the flow of fluid passing through the line, or It may include any operation that reduces the risk of operation due to deterioration of the sea situation, including disconnecting the ring equipment or stopping the operation of the equipment.

In addition, it is not limited to the above-mentioned work interruption such as loading/unloading work, and other modifications are possible. For example, when the height of the sea level is changed during connection work for loading / unloading, to prevent the relative height of the hull 11 to other ships or quay walls (QW) from changing according to the change in the height of the sea level, It can also be controlled to achieve a height change of the unloading connection point. In this case, the loading/unloading line may have a multi-stage structure in which the length can be changed as in a telescopic structure, or may be made of a material having flexibility at least in part, such as a hose, and various modifications are possible.

In addition, the control unit 170 receives a signal from the auxiliary sensing unit 180 to be described later and generates a signal to lift the floating body 110 when the pressure is lower than the reference value (a preset input value, which can be changed according to the type of ship, etc.) can make it Here, the signal for lifting the floating body 110 can be generated so that the worker/crew can recognize it through the display device of the control unit 170 . Alternatively, various modifications are possible, such as generating a signal to be transmitted to an operator/crew's terminal.

In addition, the control unit 170 may automatically lift the floating body 110 by controlling the davit device in addition to the signal for lifting the floating body 110, and the aforementioned loading/unloading connection, fuel flow control, and/or If the mooring equipment is stopped (it may be driven/stopped) without an operator's input and the preset wave height change is included in the risk range for each task, the work may be stopped.

In addition, various modifications of the configuration for automation/unmanned operation are possible, such as collecting various operations such as loading connections and operation data for each operation, and also collecting wave height change data.

The auxiliary sensing unit 180 may be provided on the floating body 110 and is configured to measure the internal pressure or air pressure of the floating body 110 . Illustratively, a tire pressure monitoring system (TPMS) capable of measuring and/or monitoring air pressure of the floating body 110 may be applied to the auxiliary sensing unit 180, and a direct sensing method may be achieved.

In the direct method, a sensor is attached to the air injection valve of the floating body 110, and the sensor can sense the air pressure in the floating body 110 and transmit a signal to the controller 170 in real time through a transmitter.

However, the auxiliary sensing unit 180 is illustrative and is not limited thereto, and various modifications are possible, such as being made of a pressure gauge and sensing a change in state inside the floating body 110 as another example.

The marine production plant 10 operating in response to waves according to the embodiment changes the direction of the marine production plant 10 according to the change in height and flow of the waves, or stops the operation of work units such as loading lines. Therefore, the stability of the offshore production plant 10 can be secured, and the change in wave height can be detected using a davit device, thereby improving the utilization of the equipment.

Although the embodiments of the present invention have been described with reference to the above and accompanying drawings, those skilled in the art to which the present invention pertains can implement the present invention in other specific forms without changing the technical spirit or essential features. You will understand that there is Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

10: marine production plant 11: hull
110: floating body 120: wire
130: winch part 140: antibit part
150: block 160: sensing unit
170: control unit

Claims (5)

a floating body that floats on the surface of the sea;
a wire connected to the floating body;
a winch unit for winding or unwinding the wire so that the floating body moves up and down;
At least one main pulley for guiding and supporting the wire between the floating body and the winch unit is rotatably coupled, and includes a first dabit and a second dabit provided to be spaced apart from each other;
a sensor configured to sense a change in height of the sea level that is changed by waves in each of the first dabit and the second dabit; and
A control unit for receiving a signal from the sensor and changing the direction of the hull to offset the movement of the hull according to the change in the height of the sea level in the first dabit and the second dabit; vessels that become offshore production plants. According to claim 1,
It is provided on the hull and further includes a working unit including at least one of a loading line, an unloading line, mooring equipment, and mooring equipment,
The first dabit and the second dabit are spaced apart in the width direction of the hull,
The control unit changes the direction of the hull in the second dabit direction when the measurement value of the sensing unit detected at the position of the first dabit is greater than the measured value detected at the position of the second dabit, or An offshore production plant operating in response to a wave, which stops the movement of the fluid passing through the work unit or stops the operation of the work unit when the height of the sea level is higher than a predetermined value. According to claim 2,
Rudder for changing the direction of the hull;
A thruster for moving the direction of the hull due to the flow of seawater; and
Further comprising a turret provided in the bow portion to change the direction of the hull,
The first dabit includes a first bow dabit and a first stern dabit spaced apart in the longitudinal direction of the hull,
The second dabit includes a second bow dabit and a second stern dabit spaced apart in the longitudinal direction of the hull,
The control unit may change at least one of the rudder, the thruster, and the turret to change the direction of the hull according to a change in wave height in the first bow davit, the first stern davit, the second bow davit, and the second stern davit. An offshore production plant operating in response to waves, controlling either one. According to claim 1,
It is moved up and down by receiving the guide in the longitudinal direction of the comb, the sensing unit is installed, and a block having a small load in preparation for the floating body is further included,
When the sea level is lowered compared to the reference value constituting the initial value of sea level, the floating body is moved downward along the sea level by its own weight, and the block is pulled by the floating body and moved upward,
When the sea level rises compared to the reference value, the floating body is moved upward along the sea level so that it floats on the sea level, and the block is moved downward to maintain the tension of the wire generated between the floating body , offshore production plants operating in response to waves. According to claim 4,
The sensing unit includes at least one of a distance sensor and a vision sensor for detecting a change in height of the block,
Further comprising an auxiliary sensor provided on the floating body to measure the internal pressure or air pressure of the floating body,
The control unit receives a signal from the auxiliary sensor and generates a signal to lift the floating body when the pressure or air pressure is lower than the reference value.

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