Pipe stand and method for replacing the pipe stand

Abstract

To provide a pipe stub that can easily be replaced even when it is not possible to secure a space for carrying in a large heavy machine or a sufficient space above a pipe.SOLUTION: A pipe stub supports a pipe. The pipe stub has a support part that is formed concavely along an outer shape of the pipe and supports the pipe, and the support part is composed of a plurality of members divided along an axial direction and height direction of the pipe. According to the present invention, the pipe stub has a support part that is formed concavely along the outer shape of the pipe and supports the pipe. Also, the support part is composed of a plurality of members divided along the axial direction of the pipe. This makes it possible to provide the pipe stub to the pipe from a right-left direction when viewed from the axial direction of the pipe. Therefore, it is possible to easily replace the pipe stub even when it is not possible to secure a space for carrying in a large heavy machine or a sufficient space around the pipe.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a pipe stand for supporting piping and a method for replacing a pipe stand. [Background Art]

[0002] In large-scale manufacturing facilities such as steelworks and petrochemical plants, each manufacturing facility is connected by piping. Raw materials and products are transferred, and utilities such as fuel gas and water are supplied to each manufacturing facility via piping.

[0003] Some of the piping connected to manufacturing facilities have a diameter of 1000 mmφ or more. In addition, steelworks and petrochemical plants have corrosive environmental areas in environments where metals and the like are prone to corrosion. In corrosive environmental areas, not only piping is regularly renewed, but also pipe stands supporting the piping are regularly renewed.

[0004] For replacing such a pipe stand, for example, Patent Document 1 discloses that after pulling up an existing piping upward, a new pipe stand is inserted under the piping, and the pulled-up piping is returned to the original position. [Prior Art Literature] [Patent Literature]

[0005] [Patent Document 1] Japanese Unexamined Patent Publication No. 2006-105267 [Summary of the Invention] [Problem to be Solved by the Invention]

[0006] In the pipe stand replacement method described in Patent Document 1, for example, in order to pull up a large-diameter piping of 1000 mmφ or more upward, it is necessary to use large heavy machinery. Furthermore, in order to pull up the piping upward, a sufficient space must be secured in the surrounding area including the area above the piping.

[0007] However, depending on the location where the piping and pipe supports are installed, there may not be enough space to bring in large heavy machinery or to secure sufficient space around the piping. In such cases, the replacement of pipe supports becomes extremely complicated.

[0008] This invention has been made in view of the above-mentioned problems, and aims to provide a pipe support that can be easily replaced even when there is no space to bring in large heavy machinery or when sufficient space cannot be secured above the piping. [Means for solving the problem]

[0009] To solve the above problems, the present invention has the following features.

[0010] [1] A pipe support that supports piping, It is formed in a concave shape along the outer shape of the pipe and has a support portion that supports the pipe, The support portion is a pipe stand composed of a plurality of members divided along the axial direction and the height direction of the pipe. [2] The pipe stand according to [1], which is connected to the support portion and has an adjustment portion for adjusting the support position of the support portion. [3] The adjustment part is detachably provided with respect to the support part, as described in [2]. [4] A method for replacing a pipe support, which involves replacing one pipe support that supports a pipe with another pipe support as described in any of [1] to [3], A temporary support step in which the piping is temporarily supported with a temporary support member, A removal step of removing the aforementioned pipe support from the piping, A support portion forming step, which involves assembling the plurality of members to form the support portion, This includes instructions on how to replace the pipe stand. [5] [2] or [3] The process includes an adjustment unit installation step for installing the adjustment unit described in [2] or [3], The method for replacing a pipe stand according to [4], wherein the support portion forming step is performed after the adjustment portion installing step. [6] It further includes an adjustment portion installing step of installing the adjustment portion according to [2] or [3], The method for replacing a pipe stand according to [4], wherein the adjustment portion installing step is performed after the support portion forming step. Effects of the Invention

[0011] According to the pipe stand and the like of the present invention, the pipe stand is formed in a concave shape along the outer contour of a pipe and includes a support portion that supports the pipe. Further, the support portion is constituted by a plurality of members divided along the axial direction of the pipe and along the height direction. This enables the pipe stand to be installed to the pipe from the left and right directions when viewed from the axial direction of the pipe. Therefore, even when there is no space for carrying in large heavy machinery or sufficient space around the pipe cannot be secured, the pipe stand can still be easily replaced. Brief Description of the Drawings

[0012] [Figure 1] It is a front view of the pipe stand of the present invention. [Figure 2] It is a perspective view of the pipe stand in FIG. 1. [Figure 3] It is a flow diagram illustrating a method for replacing a pipe stand. [Figure 4] It is a flow diagram illustrating a method for replacing a pipe stand according to a second embodiment. Mode for Carrying Out the Invention

[0013] (First Embodiment) Hereinafter, embodiments of the present invention will be described based on the drawings. FIG. 1 shows a pipe stand 100 that supports a pipe 10.

[0014] The pipe 10 is not particularly limited, and may be either a buried pipe or an erected pipe. For example, a pipe 10 formed in a cylindrical shape can be used. In the present embodiment, an example in which the pipe 10 is formed in a cylindrical shape will be described.

[0015] The nozzle 100 includes a support portion 20 that supports the pipe 10. The support portion 20 is formed in a concave shape along the outer contour of the pipe 10. In the present embodiment, the support portion 20 is formed to have an arc shape when viewed from the front. That is, the support portion 20 is formed in an arc shape corresponding to the curvature of the pipe 10.

[0016] The support portion 20 is constituted by two members: a first support portion 21 disposed on the right side in front view, and a second support portion 22 disposed on the left side in front view. The first support portion 21 and the second support portion 22 are fastened to each other by a fastening portion 23.

[0017] The support portion 20 may be manufactured according to the diameter of the pipe 10 for each renewal construction work. Alternatively, it is preferable to prepare support portions 20 corresponding to different diameters of the pipe 10 in advance, and select and use a support portion 20 having a diameter suitable for the pipe 10 when the construction is performed.

[0018] The nozzle 100 preferably includes an adjustment portion 30 that adjusts the support height, which is the support position of the support portion 20. The adjustment portion 30 is preferably provided detachably with respect to the support portion 20. The adjustment portion 30 is connected to the support portion 20 by fastening portions 24 and 25. Although not particularly limited, for example, H-shaped steel can be used as the adjustment portion 30.

[0019] The fastening portions 24 and 25 are configured to include, for example, bolts and nuts. By connecting the two components in this manner, the connection can be achieved even in places where the use of open flame is restricted.

[0020] The adjustment section 30 is provided on the pipe support frame 40. The adjustment section 30 is fastened to the pipe support frame 40, for example, by bolts and nuts (not shown). Note that the pipe support frame 40 is not necessarily required. If the pipe support frame 40 is not provided, the adjustment section 30 may be provided between the support section 20 and the work platform (not shown).

[0021] As described above, the provision of the adjustment section 30 makes it possible to replace the support section 20 and the adjustment section 30 individually. Furthermore, by replacing the adjustment section 30 with one of the appropriate height, it becomes possible to position the support section 20 at the appropriate height, thereby increasing versatility.

[0022] In other words, if the space between the pipe support 40 and the pipe 10 is narrow, there is a risk that the pipe support 100 cannot be installed if it is too tall. Therefore, it is preferable to set the height of the support section 20 of the pipe support 100 to the minimum height required for strength, and to provide an adjustment section 30 between it and the pipe support 40 to adjust the height of the pipe support 100 according to the installation location.

[0023] Figure 2 shows the configuration of the pipe support 100. As shown in Figure 2, the first support portion 21 and the second support portion 22 of the support portion 20 are two divided members along the axis AX direction of the pipe 10 and along the height direction D1.

[0024] The first support section 21 has a first mounting section 21a on which the piping 10 is placed, a first connecting section 21b connected to the adjustment section 30, and a plurality of first ribs 21c formed from the first mounting section 21a to the first connecting section 21b.

[0025] The second support section 22 has a second mounting section 22a on which the piping 10 is placed, a second connecting section 22b connected to the adjustment section 30, and a plurality of second ribs 22c formed from the second mounting section 22a to the second connecting section 22b.

[0026] The first rib 21c, located on the proximal side of the second support portion 22, is provided in contact with the second rib 22c, located on the proximal side of the first support portion 21. The first rib 21c and the second rib 22c, which are in contact with each other, are provided with bolt holes (not shown) that can be fastened by the fastening portion 23, and are fastened by the fastening portion 23.

[0027] Here, the first support portion 21 and the second support portion 22 are subjected to forces moving away from each other due to the effects of vibration, thermal expansion, etc., of the pipe 10. In Figure 2, this direction of separation corresponds to the left-right direction D2 when viewed from the axis AX of the pipe 10. The first rib 21c and the second rib 22c are fastened together by the fastening portion 23, which increases the resistance of the support portion 20 against the left-right direction D2. As a result, even when a force is applied in the left-right direction D2, the support portion 20 can support the pipe 10 in the appropriate position.

[0028] The first connecting portion 21b and the second connecting portion 22b are not particularly limited, but in this embodiment they are formed in a flat plate shape. The first connecting portion 21b and the second connecting portion 22b are provided with bolt holes (not shown) that can be fastened with fastening portion 23, and are fastened with adjustment portion 30 with fastening portions 24 and 25. In this embodiment, the first support portion 21 and the second support portion 22 are assembled in contact with each other in the left-right direction D2 when viewed from the axis AX direction of the piping 10.

[0029] The method for replacing one pipe support 100, as described above, with another pipe support will now be explained. Figure 3 is a flowchart showing the method for replacing a pipe support. As shown in Figure 3, first, a temporary support step is performed in which the pipe 10 is temporarily supported with a temporary support member (not shown) (step S101). The temporary support member is not particularly limited as long as it can support the pipe 10.

[0030] Next, a removal process is carried out in which one pipe support 100 is removed from the piping 10 (step S102). In the removal process of step S102, for example, the existing pipe support, which is one pipe support, may be divided into multiple parts by cutting or other means and then removed. When cutting the existing pipe support, for example, a cutting method such as gas cutting may be used. The cutting of the existing pipe support should be carried out in a manner appropriate to the installation location. For example, if flammable materials flow through the piping 10, fire prevention measures should be taken.

[0031] Next, a support section forming process is performed in which multiple members are assembled to form the support section 20 (step S103).

[0032] The pipe support 100 is installed, for example, in the location where an existing pipe support was installed. In the support formation process of step S103, a first support part 21 and a second support part 22 are selected to form a support part 20 with a curvature corresponding to the diameter of the pipe 10. Next, the first support part 21 and the second support part 22 are moved from the left-right direction D2 as viewed from the axis AX direction of the pipe 10 until they come into contact with each other. Then, the first support part 21 and the second support part 22 are fastened together with the fastening part 23 to form the support part 20.

[0033] Next, the adjustment unit installation process is carried out, in which the adjustment unit 30 is installed (step S104). Depending on the location where the piping 10 is installed, there may be a gap between the pipe support 100 and the pipe support 40. In that case, it is advisable to install the adjustment unit 30 between the pipe support 100 and the pipe support 40.

[0034] The adjustment section 30 is fastened to the support section 20 by fastening sections 24 and 25. The adjustment section 30 is fastened to the pipe support frame 40 by bolts and nuts.

[0035] Furthermore, since step S104, the adjustment unit installation step, is performed after step S103, the support unit formation step, it becomes easier to position the support unit 20 for installation.

[0036] As described above, according to the pipe support 100 of this embodiment, the pipe support 100 is formed in a concave shape along the outer shape of the pipe 10 and has a support portion 20 that supports the pipe 10. Furthermore, the support portion 20 is composed of a first support portion 21 and a second support portion 22 which are divided along the axis AX direction of the pipe 10 and along the height direction D1. This makes it possible to install the pipe support on the pipe from the left-right direction D2 when viewed from the axis AX direction of the pipe 10. In other words, it is possible to install the pipe support 100, which is constructed by dividing the support portion 20, by inserting it from the side of the pipe 10.

[0037] Therefore, even when there is insufficient space to bring in large heavy machinery or to secure enough space around the piping, it becomes possible to easily replace the pipe support. As a result, it becomes possible to reduce the time required for replacing the pipe support 100.

[0038] Conventionally, the pipe 10, which has been lifted upwards, is moved downwards and supported by a newly installed pipe support. With the pipe support 100 of the present invention, the pipe support can be replaced without performing such work, thus suppressing the occurrence of undesirable events such as an object getting caught between the pipe support and the pipe.

[0039] In the above-described embodiment, the first support portion 21 and the second support portion 22 were described as being divided in a shape that is symmetrical with respect to the axis AX. However, the first support portion 21 and the second support portion 22 are not limited to being divided at such a position, and may be divided at any position on the arc, for example. The division position of the first support portion 21 and the second support portion 22 should be a position that minimizes resistance when moving the piping 10. For example, in Figure 2, they may be divided at point P1, which corresponds to the rising edge of the arc.

[0040] In the above-described embodiment, an example was given in which the support portion 20 is divided into two along the axis AX direction of the pipe 10. The form of the support portion 20 is not limited to this configuration; for example, the support portion 20 may be divided into three or four along the axis AX direction of the pipe 10.

[0041] Furthermore, an example in which the first support portion 21 and the second support portion 22 are fastened using the fastening portion 23 has been described. The manner in which the first support portion 21 and the second support portion 22 are fixed is not particularly limited, and may be, for example, welded. Also, the manner in which the first support portion 21 and the second support portion 22 and the adjustment portion 30 are fixed is not particularly limited, and may be, for example, welded.

[0042] Furthermore, the adjustment section 30 is an optional component, and the pipe stand 100 may be constructed using only the support section 20.

[0043] Furthermore, in the above-described embodiment, an example was described in which the temporary support step S101 is performed using a temporary support member. The temporary support member may be composed of a pipe stand 100. In this case, it is preferable that the removal step S102 is performed after the support part formation step S103 and the adjustment part installation step S104 have been performed.

[0044] (Second Embodiment) In the above-described embodiment, an example was explained in which the support part step S103 is performed first, followed by the adjustment part installation step S104, in the method for replacing the pipe stand. Either of the two steps may be performed first.

[0045] Figure 4 is a flowchart showing a method for replacing a pipe support according to the second embodiment. As shown in Figure 4, first, a temporary support step is performed in which the pipe 10 is temporarily supported with a temporary support member (not shown) (step S201).

[0046] Next, a removal process is performed in which the first pipe support 100 is removed from the piping 10 (step S202). The removal process in step S202 can be carried out in the same way as the removal process in step S102.

[0047] Next, an adjustment unit installation process is performed in which the adjustment unit 30 is installed (step S203). The adjustment unit installation process in step S203 can be performed in the same way as the adjustment unit installation process in step S104.

[0048] Next, a support part formation process is performed in which multiple members are assembled to form the support part 20 (step S204). The support part formation process in step S204 can be performed in the same way as the support part formation process in step S103.

[0049] According to the pipe support replacement method of this embodiment, similar to the first embodiment, it is possible to easily replace the pipe support even when there is not enough space to bring in large heavy machinery or to secure sufficient space around the piping. As a result, it is possible to shorten the time required for the replacement work of the pipe support 100.

[0050] Furthermore, since the support portion formation process in step S204 is performed after the adjustment portion installation process in step S203, the support portion formation process can be carried out on the adjustment portion 30. In other words, it becomes possible to form the support portion 20 under stable conditions. [Explanation of symbols]

[0051] 100 pipe stand 10 Piping 20 Support part 21 1st support part 22 Second support part 30 Adjustment part

Claims

1. A pipe support that supports piping, It is formed in a concave shape along the outer shape of the pipe and has a support portion that supports the pipe, The support portion is composed of a plurality of members divided along the axial direction and the height direction of the piping. It is connected to the support portion and has an adjustment portion for adjusting the support position of the support portion, The adjustment section is detachably attached to any of the members of the support section by a fastening member. A pipe support in which the multiple members of the support portion are fastened together by fastening members in the left-right direction when viewed from the axial direction of the pipe.

2. A method for replacing a pipe support, which involves replacing one pipe support that supports a pipe with another pipe support as described in claim 1, A temporary support step in which the piping is temporarily supported with a temporary support member, A removal step of removing the aforementioned pipe support from the piping, A support portion forming step, which involves assembling the plurality of members to form the support portion, The adjustment unit installation step involves installing the adjustment unit, This includes instructions on how to replace the pipe stand.

3. The method for replacing a pipe stand according to Claim 2, wherein the support part formation step is performed after the adjustment part installation step has been performed.

4. The method for replacing a pipe stand according to Claim 2, wherein the adjustment part installation step is performed after the support part formation step has been performed.

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