KR20210142862A - Stinger used for laying pipe line - Google Patents

Abstract

A stinger for pipeline installation and a pipeline installation system including the same are disclosed. A stinger for pipeline installation according to an embodiment of the present invention comprises: a base part; a first guide frame supported by the base, extending toward one side of the pipeline, and extending and contracting in a direction toward or away from the pipeline; a second guide frame supported by the base part, extending toward the other side of the pipeline, and extending and contracting in the direction toward or away from the pipeline; a first roller formed at an end of the first guide frame to roll-support one side of the pipeline; and a second roller formed at an end of the second guide frame to roll-support the other side of the pipeline. The first guide frame and the second guide frame are spaced apart from each other so that a weight suspended from the pipeline forms a movable space with the pipeline, and are expanded and contracted so that the spaced distance between the first guide frame and the second guide frame is adjusted in response to the outer diameter of the pipeline.

Description

Stinger used for laying pipe line

The present invention relates to a stinger for pipeline installation and a pipeline installation system including the same.

The pipeline installation ship moves in the coastal or deep sea and installs (installs) the pipeline on the seabed using a pipeline installation device such as a stinger provided on the hull. There are various methods of installing pipelines on the seabed, such as S-lay, J-aly, Reel-lay, and Flex-lay.

For example, the S-lay method is a method of installing on the seabed while descending the pipeline in an S-shape obliquely by a stinger that prevents deformation of the pipeline.

The stinger is a pipeline support structure that prevents bending or bending of the pipeline. The stinger supports the pipeline using a number of rollers arranged on both sides of the pipeline and transports the pipeline to the seabed.

On the other hand, in the case of a lightweight pipeline made of a material having a specific gravity of 1.0 or less, there may be difficulties in the installation work, such as the part put into the water by the stinger floats by buoyancy or is pushed out by birds.

Conventionally, the pipeline installation work was performed after the concrete structure was wrapped around the pipeline. In this case, it is impossible to use a stable pipeline support structure such as a stinger, equipment for a separate lifting operation, etc. must be prepared, and various state control such as pipeline support must be performed together, so the installation work is quite difficult. And there is a problem that requires time.

An embodiment of the present invention is to provide a stinger for pipeline installation that can easily install a lightweight pipeline and a pipeline installation system including the same.

According to one aspect of the present invention, the base portion; a first guide frame supported by the base, extending toward one side of the pipeline, and extending and contracting in a direction closer to or away from the pipeline; a second guide frame supported by the base, extending toward the other side of the pipeline, and extending and contracting in a direction closer to or away from the pipeline; a first roller formed at an end of the first guide frame to support a rolling portion of the pipeline; and a second roller formed at an end of the second guide frame to roll and support the other side of the pipeline, wherein the first guide frame and the second guide frame include the weight suspended from the pipeline. A stinger for pipeline installation is provided, which is spaced apart from each other to form a movable space together with the pipeline, and expands and contracts to adjust the spaced distance between the first guide frame and the second guide frame in response to the outer diameter of the pipeline. can be

The first guide frame and the second guide frame are provided in plurality, respectively, the plurality of first guide frames and the plurality of second guide frames are respectively distributed in the longitudinal direction of the pipeline, and the first roller is the A plurality may be provided corresponding to the number of the plurality of first guide frames, and a plurality of the second rollers may be provided corresponding to the number of the plurality of second guide frames.

The first guide frame may include: a first fixed frame part supported by the base part and extending toward one side of the pipeline; and a first roller extending parallel to the first fixed frame portion, movably supported in a direction closer to or away from the pipeline with respect to the first fixed frame, and the first roller is formed at a near end of the pipeline. a second fixed frame portion including one moving frame portion, wherein the second guide frame is disposed to face the first fixed frame portion, is supported by the base portion and extends toward the other side of the pipeline; and a second roller extending parallel to the second fixed frame portion, movably supported in a direction closer to or away from the pipeline with respect to the second fixed frame, and the second roller is formed at a near end of the pipeline. 2 It may include a moving frame unit.

The first guide frame further includes a first driving unit that provides a driving force to move the first moving frame, and the second guide frame further includes a second driving unit that provides a driving force to move the second moving frame. can do.

The first driving unit and the second driving unit may provide a driving force in a rack-and-pinion method, respectively.

The first guide frame further includes a first fixing part for fixing the first movable frame part moved with respect to the first fixing frame part, and the second guide frame is moved with respect to the second fixed frame part. It may further include a second fixing part for fixing the second moving frame part.

According to another aspect of the present invention, the stinger for installing the pipeline; and a clamping part clamped to the pipeline and connected to a weight, wherein the pipeline is supported by the stinger and moves toward the seabed, a pipeline installation system may be provided.

It further includes a connection part for connecting the weight and the clamp part, the connection part, the receiving member in which the weight is accommodated; and a connection member connecting the clamp part and the accommodation member.

According to an embodiment of the present invention, the first guide frame and the second guide frame constituting the stinger are spaced apart from each other to form a structure in which a weight suspended from the pipeline is movable, thereby providing a lightweight pipeline that moves to the seabed together with the weight. can be effectively supported.

In addition, since the first guide frame and the second guide frame are provided to expand and contract corresponding to the outer diameter of the pipeline, only by adjusting the spaced distance between the first guide frame and the second guide frame in response to the changing outer diameter of the pipeline It can effectively support pipelines with different outer diameters.

1 is a view showing a state in which a pipeline is installed by a pipeline installation system according to an embodiment of the present invention.
2 is a view showing a cross-section of a stinger for pipeline installation according to an embodiment of the present invention.
FIG. 3 is a view showing an enlarged state of area A of FIG. 2 .
FIG. 4 is a diagram illustrating an enlarged state of region B of FIG. 2 .
FIG. 5 is a view for explaining a contraction operation of the first guide frame and the second guide frame of FIG. 2 .
FIG. 6 is a view for explaining a stretching operation of the first guide frame and the second guide frame of FIG. 2 .

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. do. And, in the following description, terms such as 1st, 2nd, etc. are terms used to describe various components, and their meanings are not limited, and are used only for the purpose of distinguishing one component from other components. do.

1 is a view showing a state in which a pipeline is installed by a pipeline installation system according to an embodiment of the present invention, and FIG. 2 is a view showing a cross section of a stinger for pipeline installation according to an embodiment of the present invention.

For reference, FIG. 1 shows an area supported by the stinger 100 according to the present embodiment among the pipelines P moving to the seabed, and in FIG. 2 , any one of the stinger 100 according to the present embodiment is shown. A cross-section in a direction perpendicular to the longitudinal direction of the pipeline (P) is shown at the point, and as viewed from the stern side to the bow side of the installation line (see 1 in FIG. When assumed, the upper side represents the pipeline P and the upper side of the stinger 100 , and the left side represents the pipeline P and the right side of the stinger 100 .

1 and 2, the pipeline installation system 10 according to an embodiment of the present invention includes a stinger 100 for pipeline installation and a clamp unit 200, and a pipeline (P) installed on the seabed. ) can be used to move towards the seabed.

In this embodiment, the pipeline P may be, for example, a lightweight pipeline P made of a material having a specific gravity of 1.0 or less, such as a high-density polyethylene (HDPE) pipe. In this case, the pipeline (P) can be installed by stably moving to the seabed by suspending the weight (W) when installed on the seabed so that the specific gravity exceeds 1.0, that is, by increasing the weight.

The weight W may be made of concrete. However, this is only an example and may be made of various materials such as metal materials such as iron.

The weight W may be suspended from the pipeline P through the clamp unit 200 .

The clamp unit 200 is formed to be clampable on the pipeline (P).

For example, the clamp unit 200 includes a first body 210 and a second body 220 that can be separated and coupled to each other as shown in FIG. 2 .

The first body 210 may be manufactured in the form of enclosing the outer surface of one side of the pipeline (P), and the second body 220 may be manufactured in the form of enclosing the outer surface of the other side of the pipeline (P). In this case, the first body 210 and the second body 220 may be coupled to each other in a state in which the pipeline P is wrapped, respectively, to clamp the pipeline P.

One end of each of the weights W of the first body 210 and the second body 220 toward the opposite end and the other end facing the opposite side of the weight W of the first body 210 and the second body 220 protrude in the radial direction of the pipeline P A region may be formed. In this case, the protruding area of one end of the first body 210 and the protruding area of one end of the second body 220 , the protruding area of the other end of the first body 210 and the other end of the second body 220 . The protruding regions of the can be separated or coupled to each other by a known method, such as using a bolt and a nut.

In addition, although not shown, the clamp unit may be provided in various forms, such as clamping the pipeline in a hinge manner.

A weight W may be suspended from the clamp unit 200 as shown in FIG. 2 . In this case, the weight W may be disposed on the lower side of the pipeline P and suspended from the clamp unit 200 .

The clamp unit 200 and the weight W may be connected through the connection unit 300 .

For example, the connection part 300 may include a receiving member 310 and a connection member 320 as shown in FIG. 2 .

An accommodating space is formed inside the accommodating member 310, and the weight W may be accommodated in the accommodating space. When the weight W is concrete, an entrance (not shown) communicating with the accommodation space is formed in the accommodating member 310, and the concrete is injected into the accommodation space through the entrance and hardened to form the weight W. can

The accommodating member 310 may be manufactured in a tetrahedral shape as shown in FIG. 2 , but may be manufactured in various shapes in consideration of the material or shape of the weight W.

The connecting member 320 may be manufactured in the form of a bar extending from the receiving member 310 toward the clamp unit 200 . In this case, the connecting member 320 may extend in the vertical direction as seen in FIG. 2 .

One end of the connecting member 320 toward the clamp portion 200 is separated or combined by a known method such as using a bolt and a nut and a protruding region formed at one end of the first body 210 and the second body 220 . The other end of the connecting member 320 toward the receiving member 310 may be separated or coupled by a known method such as using a bolt and a nut with the protruding region formed in the receiving member 310 .

As described above, the weight W is connected to the pipeline P by the clamp unit 200 and the connection unit 300, so that the connection and separation of the weight W to the pipeline P is easy, and maintenance It can be easy to work with.

Meanwhile, the weight W may be provided in plurality as shown in FIG. 1 . A plurality of weights (W) may be dispersed along the longitudinal direction of the pipeline (P) and suspended on the pipeline (P). In this case, the clamp unit 200 and the connection unit 300 may be provided in plurality to correspond to the plurality of weights (W).

The stinger 100 is connected to the pipeline installation line 1 , and may support the pipeline P moving from the installation line 1 toward the seabed. In this case, the stinger 100 may form a part of the movement path of the pipeline P.

Hereinafter, the stinger 100 according to the present embodiment will be described in detail with reference to FIGS. 1 and 2 .

The stinger 100 according to the present embodiment includes a base portion 110 , a first guide frame 120 , a second guide frame 150 , a first roller 180 , and a second roller 190 .

The base part 110 is formed to be connectable to the installation line 1 . For example, the base 110 may be connected to the stern of the hull of the installation line 1 in a pin-hole manner. In this case, the base part 110 may be separated from the installation line 1 in normal times, and may be connected to the installation line 1 when the pipeline P is installed on the seabed.

The base part 110 may extend in the longitudinal direction of the pipeline P moving to the seabed as shown in FIG. 1 . In this case, the base part 110 is located in the lower portion of the pipeline (P), a part may extend into the water.

A first guide frame 120 and a second guide frame 150 to be described later may be supported on the base 110 .

The first guide frame 120 is supported by the base portion 110 and extends toward one side of the pipeline (P). For example, the first guide frame 120 may extend obliquely from the base portion 110 toward the lower left end of the pipeline P as seen in FIG. 2 .

The first guide frame 120 may be expanded or contracted in a direction closer to or away from the pipeline P. The first guide frame 120 may be stretched and contracted to correspond to the outer diameter of the pipeline (P). This will be described later.

In this embodiment, the first guide frame 120 includes a first fixed frame portion 121 , a first moving frame portion 122 , a first driving portion 130 , and a first fixing portion 140 as shown in FIG. 2 . may include.

The first fixed frame part 121 may be formed in a truss structure in which a plurality of straight members are connected.

The first fixed frame portion 121 is supported by the base portion 110 and extends toward one side of the pipeline (P). For example, the first fixed frame portion 121 may extend obliquely from the base portion 110 toward the lower left end of the pipeline P as shown in FIG. 2 .

In this case, one end of the first fixing frame portion 121 may extend toward the base portion 110 and be fixed to the base portion 110 by a known method such as welding or bolting. The other end of the first fixed frame portion 121 may extend toward the lower left end of the pipeline (P).

The first fixed frame unit 121 may support the first moving frame unit 122 to be described later with respect to the base unit 110 .

The first fixed frame unit 121 may be provided as a pair as shown in FIG. 2 . In this case, the pair of first fixed frame parts 121 may be disposed to be spaced apart from each other around a first moving frame part 122 to be described later.

Alternatively, although the first fixing frame part is not shown, it may be provided in various structures that can be supported by the base part as provided as one.

The first moving frame unit 122 may be formed in a truss structure in which a plurality of straight members are connected.

The first moving frame portion 122 extends parallel to the first fixed frame portion 121 .

The first moving frame unit 122 is movably supported with respect to the first fixed frame unit 121 . In other words, the first moving frame portion 122 may move in a direction closer to or away from the pipeline P with respect to the first fixed frame portion 121 . In this case, the first guide frame 120 may be stretched or contracted according to the moving direction of the first moving frame unit 122 .

For example, the first moving frame portion 122 may be disposed between the pair of first fixed frame portions 121 as shown in FIG. 2 and extend obliquely toward the lower left end of the pipeline (P).

In this case, one end of the first moving frame portion 122 may extend toward the base portion 110 , and the other end may extend toward the lower left end of the pipeline P to support the pipeline P.

One side of the first moving frame unit 122 may be movably supported by any one of the pair of first fixed frame units 121 , and the other side may be movably supported by the other one of the pair of first fixed frame units 121 . In this case, the other end of the first moving frame unit 122 may move toward or away from the lower left end of the pipeline (P).

The first driving unit 130 may provide a driving force to move the first moving frame unit 122 .

For example, the first driving unit 130 may provide a driving force in a rack-and-pinion method as shown in FIG. 3 .

For reference, FIG. 3 is a view showing an enlarged state of region A of FIG. 2 , and in FIG. 3 , a part of the first fixed frame part 121 and a part of the first moving frame part 122 of FIG. 2 are enlarged. is shown.

Specifically, on the side of the first moving frame unit 122 facing the first fixed frame unit 121 , the rack gear member 131 extending in the extending direction of the first moving frame unit 122 is provided as shown in FIG. 3 . can be formed. A pinion gear member 132 that rotates by a driving force of a motor (not shown) and moves the rack gear member 131 may be formed in the first fixed frame part 121 .

In this case, the first moving frame unit 122 is supported by the rack gear member 131 moving in the rotation direction of the pinion gear member 132 and can move in a direction closer to or away from the pipeline P (Fig. See arrow in 3).

In addition, although not shown, the first driving unit may be provided in various ways capable of moving the first moving frame, such as a cylinder method that expands and contracts in a direction closer to or away from the pipeline.

Meanwhile, when the first fixed frame unit 121 is provided as a pair, the first driving unit 130 may be provided as a pair.

The first fixing unit 140 may fix the first moving frame unit 122 moved with respect to the first fixed frame unit 121 .

In more detail, after the first moving frame unit 122 is moved to a desired position, the moved state needs to be maintained. In this case, the first fixing part 140 may fix the first moving frame part 122 with respect to the first fixing frame part 121 . In this case, the first moving frame unit 122 may stably support the pipeline P in a fixed state.

Alternatively, the position of the first moving frame unit 122 needs to be changed. In this case, the first fixing unit 140 may release the fixing of the first moving frame unit 122 to the first fixed frame unit 121 . In this case, the first moving frame unit 122 can be easily moved by the operation of the first driving unit 130 .

For example, the first fixing part 140 may be provided in a pin-hole method as shown in FIG. 4 .

For reference, FIG. 4 is a view showing an enlarged state of the region B of FIG. 2 , and in FIG. 4 , a part of the first fixed frame part 121 and a part of the first moving frame part 122 of FIG. 2 are enlarged. is shown.

Specifically, on the side of the first fixed frame portion 121 facing the first moving frame portion 122 , as shown in FIG. 4 , a plurality of first lug members 141 are provided in the extending direction of the first fixed frame portion 121 . are dispersed and coupled to each other, and a pinhole may be formed through each of the first lug members 141 . One second lug member 142 may be formed on a side of the first moving frame portion 122 facing the first fixed frame portion 121 , and a pinhole may be formed through the second lug member 142 . .

When the first moving frame part 122 moved to a desired position needs to be fixed, the pinhole of the second lug member 142 is formed between the second lug member 142 and the plurality of first lug members 141 . Aligned with the pinhole of the first lug member 141 facing each other, the pin member 143 may be coupled through the pinhole of the first lug member 141 and the pinhole of the second lug member 142 sequentially.

When the first moving frame part 122 needs to move, the pin member 143 may be separated from the pinhole of the first lug member 141 and the pinhole of the second lug member 142 .

In addition, although the first fixing part is not shown, a pinhole is formed directly in the first fixing frame part and the first movable frame part to be provided in various structures that can limit the movement of the first movable frame part such that the pin member is coupled can

Meanwhile, when the first fixing frame unit 121 is provided as a pair, the first fixing unit 140 may be provided as a pair.

The second guide frame 150 is supported by the base part 110 and extends toward the other side of the pipeline P. For example, the second guide frame 150 may extend obliquely from the base 110 toward the lower right end of the pipeline P when viewed in FIG. 2 . At this time, the first guide frame 120 and the second guide frame 150 extend obliquely in opposite directions to each other, so that the pipeline P can be stably supported.

The second guide frame 150 may be expanded or contracted in a direction closer to or away from the pipeline P. The second guide frame 150 may be stretched and contracted to correspond to the outer diameter of the pipeline (P). This will be described later.

In this embodiment, the second guide frame 150 includes a second fixed frame unit 151 , a second moving frame unit 152 , a second driving unit 160 , and a second fixing unit 170 as shown in FIG. 2 . may include.

For reference, each of the second fixed frame unit 151 , the second moving frame unit 152 , the second driving unit 160 , and the second fixing unit 170 according to the present embodiment is the first fixed frame unit described above. (121), the first moving frame portion 122, the first driving portion 130, and the first fixing portion 140 and the base portion 110, only the difference in the arrangement position, specific detailed structure and operation mechanism is substantially the same in Hereinafter, detailed descriptions of the second fixed frame unit 151 , the second moving frame unit 152 , the second driving unit 160 , and the second fixing unit 170 will be omitted.

The second fixed frame part 151 is disposed to face the first fixed frame part 121 . For example, the first fixed frame portion 121 is disposed on the left side of the base portion 110 with respect to the pipeline P as seen in FIG. 2 , and the second fixed frame portion 151 is the base portion 110 . It may be placed on the right.

In this case, the first fixed frame portion 121 and the second fixed frame portion 151 may be respectively manufactured and then spaced apart from the base portion 110 in the left and right directions and extended to be inclined to be coupled to the base portion 110 . have.

The second fixed frame portion 151 is supported by the base portion 110 and extends toward the other side of the pipeline (P). For example, the second fixed frame part 151 may extend obliquely from the base part 110 toward the lower right end of the pipeline P as shown in FIG. 2 .

Such a second fixed frame unit 151 may support a second moving frame unit 152 to be described later with respect to the base unit 110 .

The second fixed frame unit 151 may be provided as a pair as shown in FIG. 2 . Alternatively, although not shown, the second fixed frame portion may be provided in various structures that can be supported by the base portion as provided as one.

The second moving frame part 152 extends parallel to the second fixed frame part 151 .

The second moving frame unit 152 is movably supported with respect to the second fixed frame unit 151 . In other words, the second moving frame unit 152 may move in a direction closer to or away from the pipeline P with respect to the second fixed frame unit 151 . In this case, the second guide frame 150 may be expanded or contracted according to the moving direction of the second moving frame unit 152 .

For example, the second moving frame unit 152 may be disposed between a pair of second fixed frame units 151 as shown in FIG. 2 and obliquely extend toward the lower right end of the pipeline (P).

In this case, one end of the second moving frame unit 152 may extend toward the base unit 110 , and the other end may extend toward the lower right end of the pipeline P to support the pipeline P.

One side of the second moving frame unit 152 may be movably supported by any one of the pair of second fixed frame units 151 , and the other side may be movably supported by the other one of the pair of second fixed frame units 151 . In this case, the second moving frame portion 152 may move in a direction in which the other end approaches or moves away from the lower right end of the pipeline P.

The second driving unit 160 provides a driving force to move the second moving frame unit 152 .

For example, the second driving unit 160 may provide a driving force in a rack-and-pinion method.

Meanwhile, when the second fixed frame unit 151 is provided as a pair, the second driving unit 160 may be provided as a pair.

The second fixing unit 170 may fix the second moving frame unit 152 moving with respect to the second fixed frame unit 151 .

In more detail, when it is necessary to maintain the moved state after the second moving frame unit 152 moves to the desired position, the second fixing unit 170 moves the second moving frame unit 152 to the second position. It can be fixed with respect to the fixed frame portion (151).

Alternatively, when the second moving frame unit 152 needs to change its position, the second fixing unit 170 fixes the second moving frame unit 152 to the second fixed frame unit 151 . can be released

For example, the second fixing unit 170 may be provided in a pin-hole method.

Meanwhile, when the second fixed frame unit 151 is provided as a pair, the second driving unit 160 may be provided as a pair.

On the other hand, although not shown in another embodiment, the first moving frame unit and the second moving frame unit can be manually moved with respect to the first fixed frame unit and the second fixed frame unit by an operator without the first driving unit and the second driving unit. . In this case, the first moving frame part may be movably supported in a sliding manner with respect to the first fixed frame part, and the second moving frame part may be movably supported in a sliding manner with respect to the second fixed frame part.

Referring to FIG. 2 , the first roller 180 is formed at the end of the first guide frame 120 to support one side of the pipeline P rolling. The second roller 190 is formed at the end of the second guide frame 150 to support the other side of the pipeline P by rolling. In this case, the pipeline P is rolling supported by the first roller 180 and the second roller 190 so that it can smoothly move to the seabed.

For example, the first roller 180 is rotatably supported at the other end close to the pipeline P of the first moving frame unit 122 as shown in FIG. 2 , and the second roller 190 is the second moving frame unit. It may be rotatably supported at the other end close to the pipeline P of the 152 .

In this case, the first roller 180 and the second roller 190 are supported by the first moving frame part 122 and the second moving frame part 152 that extend obliquely, and are obliquely arranged to form a V shape. can be

In this embodiment, each of the first guide frame 120 and the second guide frame 150 may be provided in plurality. The plurality of first guide frames 120 and the plurality of second guide frames 150 may be dispersed in the longitudinal direction of the pipeline P, ie, discontinuously disposed.

In this case, a plurality of first rollers 180 are provided corresponding to the number of the plurality of first guide frames 120 , and a plurality of second rollers 190 are provided corresponding to the number of the plurality of second guide frames 150 . can be provided as

Meanwhile, in another embodiment, the plurality of first guide frames 120 and the plurality of second guide frames 150 may be sequentially disposed in the longitudinal direction of the pipeline P, respectively.

In this embodiment, the first guide frame 120 and the second guide frame 150 is a moving space (W) suspended on the pipeline (P) is movable together with the pipeline (P) as shown in FIG. are spaced apart from each other to form S).

For example, the first guide frame 120 and the second guide frame 150 spaced apart by extending obliquely in opposite directions may form a movement space S in the lower portion of the pipeline P as shown in FIG. 2 . In other words, the moving space S may be a space surrounded by the base 110 , the first guide frame 120 , and the second guide frame 150 .

At this time, the side of the moving space S toward the pipeline P, that is, the upper side of the moving space S as seen in FIG. 2 may be opened. In this case, the weight (W) disposed in the moving space (S) is suspended from the pipeline (P) through the upper portion of the open moving space (S), and can move together with the pipeline (P).

As such, the stinger 100 according to the present embodiment forms a structure in which the first guide frame 120 and the second guide frame 150 are spaced apart from each other and the weight W suspended from the pipeline P is movable. , it is possible to effectively support the lightweight pipeline (P) moving to the seabed together with the weight (W).

In this embodiment, the first guide frame 120 and the second guide frame 150 are spaced apart between the first guide frame 120 and the second guide frame 150 in correspondence to the outer diameter of the pipeline (P). It can be stretched to accommodate this.

Here, the spaced distance between the adjusted first guide frame 120 and the second guide frame 150 is the other end of the first moving frame unit 122 facing the pipeline P and the second moving frame unit 152 . ) means the spaced distance between the other ends.

In this case, the spaced distance between the other end of the first moving frame unit 122 and the other end of the second moving frame unit 152 is the first moving frame unit 122 and the second moving frame unit 152 are pipes. It can be adjusted by moving toward or away from the line P.

The first roller 180 and the second roller 190 move along the first moving frame part 122 and the second moving frame part 152 that move in response to the outer diameter of the pipeline P, the outer diameter of which is changed. The pipeline (P) can be reliably supported by rolling.

For example, the outer diameter of the pipeline P1 may be relatively large as shown in FIG. 5 .

For reference, FIG. 5 is a view for explaining the contraction operation of the first guide frame and the second guide frame of FIG. 2 , and in FIG. 5 for convenience of explanation, a weight (W in FIG. 200), and the connection part (300 in FIG. 2) are omitted.

At this time, both the first moving frame unit 122 and the second moving frame unit 152 may move in a direction away from the pipeline P1 as shown in FIG. 5 (see the bold arrow in FIG. 5 ). That is, each of the first guide frame 120 and the second guide frame 150 may be contracted.

In this case, the distance D1 spaced apart between the first guide frame 120 and the second guide frame 150 increases, and the first roller 180 and the second roller 190 each have a relatively large outer diameter pipe. It is possible to stably support one side and the other side of the line (P).

In the process in which the first guide frame 120 and the second guide frame 150 are contracted, respectively, the first driving unit 130 and the second driving unit 160 are formed by the first moving frame unit 122 and the second moving frame, respectively. A driving force may be provided to move the part 152 in a direction away from the pipeline P1 .

The first fixing unit 140 and the second fixing unit 170 are the first moving frame unit 122 and the second moving frame when the first moving frame unit 122 and the second moving frame unit 152 move, respectively. After releasing the fixing of the part 152, the first moving frame unit 122 and the second moving frame unit 152 move in response to the outer diameter of the pipeline P1, the first moving frame unit 122 and the second moving frame unit 152 may be fixed.

Alternatively, the outer diameter of the pipeline P2 may be relatively small as shown in FIG. 6 .

For reference, FIG. 6 is a view for explaining the stretching operation of the first guide frame and the second guide frame of FIG. 2 , and in FIG. 6 for convenience of explanation, a weight (W in FIG. 200), and the connection part (300 in FIG. 2) are omitted.

In this case, both the first moving frame unit 122 and the second moving frame unit 152 may move in a direction closer to the pipeline P2 as shown in FIG. 6 (refer to the bold arrow in FIG. 6 ). That is, the first guide frame 120 and the second guide frame 150 may be elongated, respectively.

In this case, the distance D2 spaced apart between the first guide frame 120 and the second guide frame 150 is narrowed, and the first roller 180 and the second roller 190 are pipes having a relatively small outer diameter, respectively. It is possible to stably support one side and the other side of the line P, and prevent the pipeline P from falling between the spaced intervals D2.

While the first guide frame 120 and the second guide frame 150 are elongated, respectively, the first driving unit 130 and the second driving unit 160 are formed by the first moving frame unit 122 and the second moving frame, respectively. A driving force may be provided so that the part 152 moves in a direction closer to the pipeline P2 .

The first fixing unit 140 and the second fixing unit 170 are the first moving frame unit 122 and the second moving frame when the first moving frame unit 122 and the second moving frame unit 152 move, respectively. After releasing the fixing of the part 152, the first moving frame unit 122 and the second moving frame unit 152 move in response to the outer diameter of the pipeline P2, the first moving frame unit 122 and the second moving frame unit 152 may be fixed.

The stinger 100 according to the present embodiment is provided so that the first guide frame 120 and the second guide frame 150 expand and contract in response to the outer diameter of the pipeline P, thereby changing the outer diameter of the pipeline P. Correspondingly, it is possible to effectively support the pipeline P with a changed outer diameter only by adjusting the spaced distance between the first guide frame 120 and the second guide frame 150 . Furthermore, the installation line 1 does not need to replace the stinger 100 with another stinger 100 corresponding to the changed outer diameter when the outer diameter of the pipeline P is changed, so that the installation work of the pipeline P is quickly performed. can be done

On the other hand, the stinger 100 according to this embodiment can be used to support the lightweight pipeline P on which the weight W is suspended, but the specific gravity exceeds 1.0 and the weight W is not suspended in the pipeline. can be used to support.

In the above, although embodiments of the present invention have been described, those of ordinary skill in the art can add, change, delete or add components within the scope that does not depart from the spirit of the present invention described in the claims. It will be said that various modifications and changes of the present invention can be made by, and this is also included within the scope of the present invention.

P: Pipeline W: Weight
1: Installation line 10: Pipeline installation system
100: stinger for pipeline installation 110: base part
120: first guide frame 121: first fixed frame portion
122: first moving frame unit 130: first driving unit
140: first fixing part 150: second guide frame
151: second fixed frame portion 152: second moving frame portion
160: second driving unit 170: second fixing unit
180: first roller 190: second roller
200: clamp part 300: connection part

Claims (5)

In the stinger for pipeline installation that supports the pipeline in which at least one weight is installed to be moved,
base part;
a first guide frame supported by the base, extending toward one side of the pipeline, and extending and contracting in a direction closer to or away from the pipeline;
a second guide frame supported by the base, extending toward the other side of the pipeline, and extending and contracting in a direction closer to or away from the pipeline;
a first roller formed at an end of the first guide frame to support a rolling portion of the pipeline; and
and a second roller formed at an end of the second guide frame to roll the other side of the pipeline,
The first guide frame and the second guide frame,
The weights suspended from the pipeline are spaced apart from each other to form a movable space that is movable together with the pipeline,
A stinger for pipeline installation, which expands and contracts to adjust the spaced distance between the first guide frame and the second guide frame in response to the outer diameter of the pipeline. According to claim 1,
The first guide frame and the second guide frame are provided in plurality, respectively, and the plurality of first guide frames and the plurality of second guide frames are respectively distributed in the longitudinal direction of the pipeline;
The first roller is provided in plurality in correspondence to the number of the plurality of first guide frames, and the second roller is provided in plurality in correspondence to the number of the plurality of second guide frames. According to claim 1,
The first guide frame,
a first fixed frame part supported by the base part and extending toward one side of the pipeline; and
a first extending parallel to the first fixed frame portion, supported movably in a direction closer to or away from the pipeline with respect to the first fixed frame, the first roller being formed at a near end of the pipeline including a moving frame,
The second guide frame,
a second fixed frame portion disposed to face the first fixed frame portion, supported by the base portion and extending toward the other side of the pipeline; and
a second extending in parallel with the second fixed frame portion, movably supported in a direction closer to or away from the pipeline with respect to the second fixed frame, the second roller being formed at a near end of the pipeline A stinger for pipeline installation, including a moving frame. 4. The method of claim 3,
The first guide frame further includes a first driving unit that provides a driving force to move the first moving frame unit,
The second guide frame further comprises a second driving unit for providing a driving force to move the second moving frame unit, a stinger for pipeline installation. 4. The method of claim 3,
The first guide frame further includes a first fixing part for fixing the first moving frame part moved with respect to the first fixed frame part,
The second guide frame further comprises a second fixing part for fixing the second movable frame part moved with respect to the second fixing frame part, Stinger for pipeline installation.

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