KR101444311B1 - Pipeline controlling Buoyancy - Google Patents

Abstract

The present invention relates to a pipeline in which a buoyancy is regulated by providing a pipeline near the sea level to facilitate the installation and maintenance of the pipeline and, if necessary, to settle a part of the pipeline below the sea level
A pipeline in which buoyancy is controlled includes a plurality of pipes, a joint member interposed between the pipes to connect the pipes in series so that the pipes can be bent with respect to each other, and a buoyancy member coupled to at least one of the pipe and the joint member, To a buoyancy-controlled pipeline comprising a buoyancy regulator.

Description

Pipeline controlling buoyancy < RTI ID = 0.0 >

The present invention relates to a pipeline in which buoyancy is controlled, more specifically, a pipeline is installed near the sea level to facilitate the installation and maintenance of the pipeline, and a part of the pipeline can be settled below the sea level The buoyancy of which is controlled.

Generally, crude oil or natural gas extracted from offshore crude oil or marine gas extraction facilities is transported to land storage facilities via a pipeline on the sea floor. Thus, submarine pipelines are formed to extend from offshore crude oil or gas extraction facilities to offshore storage facilities, and can vary in length from tens of kilometers to hundreds of kilometers or more.

A pipeline is formed by connecting a plurality of pipes having a certain diameter to form a continuous pipe, and a unit pipe having a length of at least several tens of meters is used in the pipeline. Each of these unit pipes is welded sequentially on the barge to form a pipeline, and the pipeline is installed on the sea floor from the barge to the seabed.

On the other hand, the installation of pipelines ranging from tens of kilometers to hundreds of kilometers on the seabed is very limited by natural conditions and it is not easy to repair and replace pipelines after installation. In addition, if gas or crude oil transported through the pipeline leaks, the maintenance work can not be performed quickly, and the environment can be seriously polluted.

The present invention is directed to a pipeline system and a pipeline system that are installed near the sea level to facilitate the installation and maintenance of the pipeline and to adjust the buoyancy of the pipeline below the sea level About pipelines

The technical objects of the present invention are not limited to the technical matters mentioned above, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a pipeline in which buoyancy is controlled according to an embodiment of the present invention. The pipeline includes a plurality of pipes, and a plurality of pipes interposed between the pipes to connect the pipes in series, And a buoyancy adjusting device coupled to at least one of the pipe and the jointing member, the buoyancy adjusting device controlling the buoyancy.

The joint member may include a hollow connecting part formed of a flexible material and having both ends connected to the pipe, and a fixing part fixing the connecting part to the pipe.

The connection portion may be in the form of a corrugated pipe.

The joint member may further include a watertight member for sealing between both ends of the connection portion and the pipe.

Wherein the buoyancy adjusting device comprises a body portion formed with at least one of the pipe and the jointing member and having a buoyancy adjusting space filled with water therein and a buoyancy adjusting chamber formed at the buoyancy adjusting chamber, And a drain pump for discharging the water inside the buoyancy adjusting space out of the body portion through the water hole.

The buoyancy adjusting device may further include a sealing member for sealing the water hole, and an actuator for sealing or opening the water hole by moving the sealing member.

At least one water hole may be formed in the upper end of the body part and the lower end of the body part, respectively.

The buoyancy regulating device may further include a sensor unit for recognizing an object approaching the pipe and a control unit for controlling the drain pump according to a signal received from the sensor unit.

The buoyancy regulating device may further include a communication unit for communicating with a control point located outside the buoyancy regulating device and a control unit for controlling the drain pump in accordance with a signal received from the communicating unit.

According to the present invention, it is easy to install and maintain the pipeline by installing the buoyancy controllable pipeline near the sea level. And, instead of each pipe being welded together, it is joined by a joint member, which eliminates the need for a separate welding device, and allows refraction of the pipeline. In addition, a buoyancy regulator may be used to selectively subside the sea level below a portion of the pipeline floating near the sea level.

1 is a perspective view of a buoyancy-controlled pipeline according to an embodiment of the present invention.
Fig. 2 is an enlarged perspective view of the coupling member of Fig. 1. Fig.
Fig. 3 is a cross-sectional view of the joint member of Fig. 2 taken along line AA. Fig.
4 is a partially cutaway perspective view showing a coupling member according to another embodiment of the present invention.
5 is an enlarged perspective view of the buoyancy adjusting device of FIG.
Fig. 6 is a cross-sectional view of the buoyancy regulating device of Fig. 5 taken along the BB line. Fig.
FIGS. 7 and 8 are operation diagrams for explaining the operation of the buoyancy regulating device of FIG.
9 is a view showing a buoyancy adjusting apparatus according to another embodiment of the present invention.
FIGS. 10 and 11 are views showing an operation state of a pipeline in which buoyancy is controlled according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, with reference to Figs. 1 to 6, the buoyancy-controlled pipeline 1 according to the embodiment of the present invention will be described in detail.

FIG. 1 is a perspective view of a pipeline in which buoyancy is controlled according to an embodiment of the present invention, and FIG. 2 is an enlarged perspective view of the coupling member of FIG. 1. Fig. 3 is a cross-sectional view taken along the line A-A of the coupling member of Fig. 2;

A buoyancy controlled pipeline 1 according to an embodiment of the present invention is a device used to transfer crude oil or natural gas extracted from an offshore crude oil or gas extraction facility to an onshore storage facility, Can be installed. The buoyancy-controlled pipeline 1 connects each pipe 10 so as to be able to bend, and can adjust the buoyancy as necessary to settle a part of the pipeline 1 below the sea level.

The buoyancy-controlled pipeline 1 includes a joint member 20 connecting the pipe 10 and a buoyancy regulating device 30 for regulating buoyancy.

The joint member 20 connects the plurality of pipes 10 in series, and may be formed so as to be bent in all directions as required. For example, if a part of the pipeline 1, which is located near the sea level, is to be submerged below the sea level, the joint 20 may be deflected downward to settle the pipe 10 below the sea level have.

On the other hand, at least one buoyancy regulating device 30 may be coupled to one side of the pipeline 1 whose buoyancy is controlled. The buoyancy regulator 30 may be coupled to at least one of the pipe 10 or the coupling member 20 and may adjust buoyancy to float a portion of the pipeline 1 above sea level or sink below sea level .

Hereinafter, the pipeline 1 in which buoyancy is regulated will be described in detail with reference to Figs. 2 to 6. Fig.

The buoyancy controlled pipeline 1 according to the present invention comprises a plurality of pipes 10, a coupling member 20 for connecting the pipes 10 in series and at least one of the pipe 10 or the coupling member 20 And a buoyancy regulating device 30 attached to the buoyancy regulating device 30 to regulate buoyancy.

The pipe 10 has a predetermined diameter and length and is formed in a hollow shape so that crude oil or natural gas extracted from an extraction facility at sea can be transferred. The pipe 10 can float on the sea even when the inside is empty, and can be formed to float even when raw oil or natural gas is filled in the inside. A joint member 20 may be interposed between each pipe 10.

The joint member 20 is a device for connecting the pipes 10 in series, and the pipe line 1 can be formed by connecting a plurality of pipes 10 in series. The joint member 20 has a flexible structure such that each pipe 10 can be bent in the up, down, left, and right directions. Further, the joint member 20 may be formed in a structure interposed between the pipes 10 so as to float on the sea. For example, the joint member 20 may be formed of a material lower than the density of seawater.

The joint member 20 includes a fixing portion 22 for fixing the connecting portion 21 and the connecting portion 21 to the pipe 10 and a watertight member 24 for sealing the space between the connecting portion 21 and the pipe 10 .

The connecting portion 21 may have a cylindrical or polygonal tubular shape and may be formed of a flexible material that can be bent in all directions. However, the connection portion 21 is not limited to a flexible material, but can be deformed by any other material that can be refracted. For example, the connecting portion 21 may be formed of a flexible tube material that can be stretched in the longitudinal direction.

One end of the pipe 10 can be inserted into both ends of the connection part 21, respectively. That is, the connection portion 21 is formed in a hollow shape, and the pipes 10 can be connected in series by receiving the ends of the two pipes 10 therein. However, the ends of the two pipes 10 accommodated in the connecting portion 21 are not in contact with each other, and can be accommodated in the connecting portion 21 with a predetermined distance apart. The pipe 21 can be refracted by receiving the pipe 10 at a certain interval and the pipe line 1 can be also refracted by the refracted connection 21. [

For example, in the case where a part of the pipeline 1 installed near the sea level has to sink below the sea level, the upper part of the connection part 21 is relaxed and the lower part of the connection part 21 is compressed, Lt; / RTI > The connection portion 21 is bent downward so that the pipe 10 accommodated therein can sink down below the sea level in an inclined state. The connecting portion 21 can be fixedly attached to the pipe 10 by the fixing portion 22.

The fixing portion 22 is a member having a constant thickness of a cylindrical or polygonal tubular cross section, and the connecting portion 21 can be fixed tightly to the pipe 10. [ At least one of the fixing portions 22 may be provided on each side of the connecting portion 21. [ The fixing part 22 may be formed so as to surround the outer side of the connecting part 21, and the protruding part 23 may be formed on at least one side thereof.

The fixing portion 22 can be opened around the protruding portion 23 and the fixing portion 22 can be unfolded to completely surround the connecting portion 21. [ The fixing portion 22 is completely enclosed in the connecting portion 21 and then the fixing portion 22 can be fixed tightly to the connecting portion 21 by fastening the protruding portion 23. [ For example, the projecting portion 23 can be fastened with a screw. However, the protruding portion 23 is not limited to being fastened by a screw, and can be deformed to any other structure capable of fastening the protruding portion 23.

The joint member 20 may include a watertight member 24 that seals between the connecting portion 21 and the pipe 10. The watertightness member 24 can be installed in a structure surrounding both ends of the connection part 21 and can prevent the inflow of seawater into the connection part 21 through the gap between the connection part 21 and the pipe 10 have. However, the watertight member 24 is not limited to being provided at both ends of the connecting portion 21. For example, the watertight member 24 may be provided on the outer surface of the pipe 10 accommodated in the connecting portion 21. [ When the watertight member 24 is installed on the pipe 10, the watertight member 24 can be formed to surround the outside of the end of the pipe 10. [

4 is a partially cutaway perspective view showing a coupling member according to another embodiment of the present invention.

The joint member 20 according to another embodiment of the present invention includes a connecting portion 21 formed in the shape of a bell pipe 25. The joint member 20 according to another embodiment of the present invention is substantially the same as the above-described embodiment except that the connecting portion 21 is formed in the shape of a corrugated pipe 25. Accordingly, the description will be made with emphasis on this, but unless otherwise stated, the description of the remaining components will be replaced with the above description.

4, the connecting portion 21 may be formed in the shape of a corrugated pipe 25 instead of a cylindrical or polygonal tube. That is, the connecting portion 21 has a hollow corrugated pipe 25 structure in which the diameter is repeatedly enlarged and reduced. Therefore, the connecting portion 21 can be widened or narrowed, stretchable and contractible in all directions. For example, when a part of the pipeline 1 installed near the sea level needs to sink below the sea level, the upper corrugation of the connection portion 21 is opened and the lower corrugation of the connection portion 21 is narrowed, May be deflected downward. The connection portion 21 is bent downward so that the pipe 10 accommodated therein can sink down below the sea level in an inclined state. At this time, the ends of the two pipes 10 accommodated in the connecting portion 21 are not in contact with each other, but are received at regular intervals. The pipe 10 can be received at a certain distance so that the coupling member 20 can be deflected and also the pipeline 1 can be deflected. The connecting portion 21 is fixed to the pipe 10 in tight contact with the fixing portion 22.

At least one of the pipe 10 or the coupling member 20 may be coupled with a buoyancy regulating device 30.

FIG. 5 is an enlarged perspective view of the buoyancy regulating device of FIG. 1, and FIG. 6 is a cross-sectional view of the buoyancy regulating device of FIG. 5 taken along line B-B.

Since the pipeline 1 according to the present invention floats near the sea surface and transports crude oil or natural gas, when an object such as a ship (see 60 in FIG. 11) approaches the pipeline 1, Should be. Therefore, the buoyancy regulating device 30 capable of regulating the buoyancy can be coupled to the pipeline 1.

The buoyancy regulating device 30 is a device for adjusting the buoyancy to sediment or float the pipeline 1. That is, the buoyancy regulating device 30 can cause a part of the pipeline 1 to sink down below the sea level or float above the sea level by adjusting the internal buoyancy. The buoyancy regulating device 30 may be installed in at least one of the pipe 10 and the jointing member 20 and the buoyancy regulating device 30 may be installed in the pipe line 1.

The buoyancy regulating device 30 includes a water port 35 for communicating the body 31 and the body 31 with the outside and a drain pump 38 for discharging the seawater inside the body 31 to the outside.

The body portion 31 has a cylindrical or polygonal cylindrical shape and a pipe 10 or a coupling member 20 can be accommodated in the body portion 31 in the longitudinal direction. That is, the body portion 31 may be coupled to the outside of the pipe 10 or the coupling member 20. A buoyancy adjusting space 32 filled with seawater may be formed inside the body 31. When seawater enters or exits the buoyancy control space 32, the buoyancy regulator 30 sinks below the sea level or floats above the sea level. At least one water outlet 35 may be formed in the body 31.

The water outlet 35 may have a circular or rectangular cross section, and at least one of the upper and lower ends of the body 31 may be formed. The body portion 31 can communicate the buoyancy adjusting space 32 with the outside of the body portion 31 through the water outlet 35. [ Such a water port 35 can be sealed by the sealing member 36. [

The sealing member 36 closes the water hole 35 to block the buoyancy adjusting space 32 and the outside of the body 31. At least one sealing member 36 may be formed on the upper end and the lower end of the body 31, respectively. One side of the sealing member 36 may be formed to have the same cross-sectional area as that of the drainage port 35, and the other side may be formed to extend more than the cross-sectional area of the drainage port 35. In other words, the sealing member 36 can be prevented from being separated from the water outlet 35 by one side being received in the water outlet 35 and the other side being expanded to completely close the water outlet 35 It can be sealed.

The sealing member 36 is actuated by the actuator 37. The actuator 37 is installed inside the body 31 and can close or open the water outlet 35 by moving the sealing member 36. For example, when the actuator 37 inserts the sealing member 36 into the water outlet 35, the body 31 is completely blocked from the outside, thereby forming a buoyancy adjusting space 32 sealed inside. The actuator 37 may be formed of a motor. However, the actuator 37 is not limited to a motor, but can be modified into various forms capable of operating the closure member 36. For example, the actuator 37 may be formed of a hydraulic cylinder. The outside and the inside of the actuator 37 are waterproofed, so that operation is possible even if seawater flows into the buoyancy control space 32. [

At the upper end of the body 31, a separation membrane 33 may be formed. That is, the body portion 31 can be separated into the buoyancy adjusting space 32 and the drainage space 34 through the separation membrane 33. The separation membrane 33 is formed around the drainage port 35 formed at the upper end of the body section 31 and may be formed of the same material as the body section 31. The separation membrane 33 can isolate the buoyancy regulating space 32 and the drainage space 34 through a separate watertight device (not shown).

The drainage space 34 is a space formed in the upper portion of the separation membrane 33, and one side of the drainage space 34 communicates with the drainage port 35. The sealing member 36 received in the drainage port 35 formed at the upper end of the body portion 31 does not leave the drainage space 34 even if it is moved by the actuator 37. [ The drain space 34 may communicate with a drain pipe 39 for discharging the seawater introduced into the body 31 to the outside. The discharge pipe (39) communicates with the drainage space (34) through one side of the separation membrane (33). One side of the discharge pipe 39 is connected to the drainage space 34, and the other side is connected to the drainage pump 38.

The drain pump 38 is a device for discharging the seawater introduced into the buoyancy control space 32 through the drain port 35 to the outside of the body section 31 and may be installed inside the body section 31. An inlet pipe (40) is formed at one side of the drain pump (38). That is, the discharge pipe 39 is coupled to one side of the drain pump 38, and the inlet pipe 40 is coupled to the other side. The inlet pipe 40 sucks the seawater by the operation of the drain pump 38 and the sucked seawater flows through the drain pipe 39 coupled to the drain pump 38 and through the drain port 35 to the body portion 31. [ And can be discharged outside.

Hereinafter, the operation of the buoyancy regulating device 30 will be described in more detail with reference to FIGS. 7 and 8. FIG. FIGS. 7 and 8 are operation diagrams for explaining the operation of the buoyancy regulating device of FIG.

The buoyancy-regulated pipeline 1 according to an embodiment of the present invention has a structure in which the buoyancy of the buoyancy regulator 30 is adjusted to sediment or float the pipeline 1. That is, there is a structure in which seawater is introduced into the buoyancy regulating device 30 to sediment the pipeline 1 below the sea surface, or the seawater introduced into the buoyancy control device 30 is discharged to the outside to float the pipeline 1 on the sea surface .

First, referring to FIG. 7, if the pipeline 1 installed near the sea level needs to sink below the sea level, the buoyancy regulator 30 must flow seawater into the interior. The amount of seawater flowing into the buoyancy regulating space 32 can be adjusted according to the depth at which the pipeline 1 should sink.

The actuator 37 is actuated to introduce the seawater into the buoyancy regulating device 30 so that the sealing member 36 sealing the drainage port 35 formed at the lower end of the body portion 31 is inserted into the buoyancy adjusting space 32, . When the sealing member 36 is received in the buoyancy adjusting space 32, the water hole 35 is opened and seawater flows into the buoyancy adjusting space 32 through the water hole 35. When the seawater flows into the buoyancy regulating space 32, the pipeline 1 sinks below the sea level. When the pipeline 1 sinks by a desired depth, the actuator 37 is operated again to return the sealing member 36 to the drain port (35). The sealing member 36 completely closes the water hole 35 to completely block the buoyancy adjusting space 32 from the outside. Even if seawater is completely introduced into the buoyancy control space 32, seawater does not flow into the drain space 34 by the separation membrane 33. On the other hand, the water outlet 35 formed at the upper end of the body portion 31 is kept closed by the sealing member 36. Further, the drain pump 38 formed on one side of the buoyancy adjusting space 32 is not operated.

Next, referring to FIG. 8, when the pipeline 1 sinking below the sea level is to be floated near the sea level, the buoyancy regulating device 30 must discharge the seawater introduced therein to the outside. At this time, the actuator 37 is operated to receive the sealing member 36, which hermetically closes the drainage port 35 formed at the upper end of the body portion 31, in the drainage space 34. When the sealing member 36 is received in the drainage space 34, the drainage port 35 is opened. After opening the water port 35, the drain pump 38 sucks seawater in the buoyancy regulating space 32 through the inlet pipe 40. The sucked seawater is discharged to the drainage space 34 through the discharge pipe 39 and can completely escape to the outside of the body portion 31 through the opened drainage port 35. When the seawater in the buoyancy regulating space 32 is discharged to the outside, the pipeline 1 is gradually floated. When the pipeline 1 floats to the sea level, the actuator 37 is operated again to insert the sealing member 36 into the drainage port 35. The sealing member 36 completely seals the water port 35, and the drainage space 34 may partially contain seawater. On the other hand, the water outlet 35 formed at the lower end of the body portion 31 is kept closed by the sealing member 36.

Hereinafter, the buoyancy regulating device 30 according to another embodiment of the present invention will be described in detail with reference to FIG.

The buoyancy regulating device 30 according to another embodiment of the present invention is a structure in which the buoyancy regulating device 30 is operated by the sensor portion 50 or the communication portion 51. [ The buoyancy regulating device 30 is operated by the sensor portion 50 or the communication portion 51 so that the obstacle near the pipeline 1 can be more easily recognized and the buoyancy regulating device 30 can be precisely controlled Do.

9 is a view showing a buoyancy adjusting apparatus according to another embodiment of the present invention.

The buoyancy regulating device 30 according to another embodiment of the present invention is substantially the same as the above embodiment except that the buoyancy regulating device 30 is operated by the sensor portion 50 or the communication portion 51. [ Accordingly, this will be described in more detail, but unless otherwise noted, the description of the remaining components replaces the foregoing.

9, the sensor unit 50 and the communication unit 51 may be formed on one side of the buoyancy regulating device 30. As shown in FIG.

The sensor unit 50 recognizes the object 60 approaching the pipeline 1 and can be installed on at least one of the outside or inside of the buoyancy regulating device 30. [ The sensor unit 50 may be formed of at least one of an ultrasonic sensor, an underwater acoustic sensor, an infrared sensor, a laser sensor, and an image sensor.

The ultrasonic sensor can detect the distance or the direction of the object through the ultrasonic waves reflected by the object by generating the ultrasonic waves, and the underwater acoustic detector can detect the presence or the position of the object in the sea using the underwater sound waves. In addition, the infrared sensor can detect an object using infrared rays, and the laser sensor can detect presence or absence of an object within a predetermined distance by using a laser. The image sensor detects an object in response to light reflected from the object. can do.

However, the sensor unit 50 is not limited to the above, and may be modified into various forms capable of recognizing an approaching object. For example, the sensor unit 50 may be formed of a distance recognition sensor. The sensor unit 50 recognizes the object 60 approaching the pipeline 1 in real time and can transmit the control signal to the control unit 53 when the object 60 is recognized.

The control unit 53 controls the drain pump 38 and the actuator 37 according to the control signal received from the sensor unit 50. For example, when the object 60 is recognized through the sensor unit 50, the control unit 53 can transmit an operation signal to the actuator 37 only. The actuator 37 receiving the operation signal from the control unit 53 can open the water outlet 35 by receiving the sealing member 36 which hermetically closes the water outlet 35 into the body 31. [ The seawater is introduced into the buoyancy regulating space 32 through the open water port 35 so that the pipeline 1 can be settled down to the sea level. Further, the drain pump 38, which has not received the operation signal from the control unit 53, remains in a stopped state without being operated.

The communication unit 51 communicates with the control unit 52 located outside the buoyancy regulating device 30 and transmits a control signal to the control unit 53. [ The control point 52 is a place for monitoring the situation of the pipeline 1 in real time from the outside of the buoyancy regulating device 30. The control point 52 is connected to the communication part 51 so as to adjust the buoyancy of the buoyancy regulating device 30 Signal.

The communication unit 51 may be installed on at least one of the outside or inside of the buoyancy regulating device 30. [ The communication unit 51 can recognize the object 60 approaching the pipeline 1 in accordance with a signal transmitted from the control point 52 in a wired or wireless communication with the control point 52. [ When the communication unit 51 recognizes the object 60 by the transmitted signal, the communication unit 51 can transmit the control signal to the control unit 53. [ The control unit 53 controls the drain pump 38 and the actuator 37 according to the control signal transmitted from the communication unit 51. The pipeline 1 can sink down below the sea level or float above the sea level.

Hereinafter, the operating state of the pipeline 1 in which buoyancy is controlled will be described with reference to FIGS. 10 to 11. FIG.

FIGS. 10 and 11 are views showing an operation state of a pipeline in which buoyancy is controlled according to an embodiment of the present invention.

First, referring to FIG. 10, in a general case, the pipeline 1 is installed to float near sea level. The pipeline (1) floats on sea level and transports crude oil or natural gas extracted from the extraction facility to a land storage facility. Each pipe 10 is connected by a coupling member 20 and at least one of the pipe 10 or the coupling member 20 is coupled to the buoyancy regulating device 30. [ A plurality of the buoyancy regulating devices 30 may be coupled to the pipeline 1, and the buoyancy regulating devices 30 may be spaced apart at regular intervals.

11, when an object 60 such as a ship approaches or passes near the pipeline 1, the pipeline 1 sinks a part down to the sea level so that the pipeline 1 and the object 60 Can be prevented from coming into contact with each other. At this time, only the pipeline 1 adjacent to the object 60 can be settled down to the sea surface, and the remaining portion not adjacent to the object 60 can be kept floating on the sea surface.

The seawater is introduced into the buoyancy regulator 30 to sediment the pipeline 1. When the buoyancy regulating device 30 receives seawater, the pipeline 1 to which the buoyancy regulating device 30 is connected sinks below sea level. At this time, the joint member 20 around the sinking pipeline 1 is refracted, and the pipe 10 coupled to the joint member 20 can be arranged to be inclined at a certain angle and then descending or rising.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1. Buoyancy-controlled pipeline
10. Pipe
20. Connecting member 21. Connection
22. Fixation 23. Projection
24. Watertight member 25. Corrugated pipe
30. Buoyancy control device 31. Body part
32. Buoyancy control space 33. Membrane
34. Drain space 35. Drain
36. Sealing member 37. Actuator
38. Drain pump 39. Drain pipe
40. Inflow pipe
50. Sensor part 51. Communication part
52. Control station 53. Control station
60. Objects

Claims (9)

A plurality of pipes;
A coupling member interposed between the pipes and connecting the pipes in series, the coupling members connecting the pipes so that they can be bent with respect to each other; And
And a buoyancy adjusting device coupled to at least one of the pipe and the jointing member, the buoyancy adjusting device adjusting the buoyancy of the buoyancy to selectively sink a part of the pipe down to the sea surface or float up to the sea surface,
The buoyancy adjusting device comprises:
A body portion coupled to at least one of the pipe or the coupling member and having a buoyancy adjusting space filled with water,
At least one water hole formed in the body portion and communicating the buoyancy control space and the outside of the body portion with each other,
And a drain pump for discharging water in the buoyancy adjusting space out of the body through the water hole. The connector according to claim 1,
A hollow connection part formed of a flexible material and having both ends connected to the pipe; And
And a buoyancy-controlled pipeline comprising a fixture securing the connection to the pipe. 3. The method of claim 2,
Wherein the connecting portion is a pipe line in which a buoyant force in the form of a bellows is controlled. 3. The method of claim 2,
Wherein the coupling member further comprises a watertight member for sealing between both ends of the connection portion and the pipe. delete The buoyancy adjusting apparatus according to claim 1,
A sealing member for sealing the water outlet; And
Further comprising an actuator for moving said sealing member to seal or open said drainage port. The method according to claim 1,
Wherein the buoyant force is regulated in at least one of the upper end of the body portion and the lower end portion of the body portion. The buoyancy adjusting apparatus according to claim 1,
A sensor unit for recognizing an object approaching the pipe; And
And a control unit for controlling the drain pump according to a signal received from the sensor unit. The buoyancy adjusting apparatus according to claim 1,
A communication unit for communicating with a controller located outside the buoyancy regulating device; And
And a control unit for controlling the drain pump according to a signal received from the communication unit.

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