Piping support device

Abstract

To provide a piping supporting device exerting an attenuation effect to vibrations in all directions orthogonal to a pipe axis of piping.SOLUTION: A piping supporting device 1 is equipped with a U-bolt 2, a shock absorbing member 3, a plurality of wire mesh ring 4, supporting pipes 5 and 6, and nuts 7 and 8. The shock absorbing member 3 is a three-layer adhesive body of a base plate 12, a wire mesh plate 13, and an abutting plate 14, and is disposed between piping 21 and a structure 22. The U-bolt 2 surrounds the piping 21, and shaft portions 9 and 10 penetrate the base plate 12 and the structure 22 to be fastened by the nuts 7 and 8. The wire mesh ring 4 contacts with the piping 21, is continuously fitted in a curving portion 11 of the U-bolt 2, and is held by the curving portion 11 with the supporting pipes 5 and 6 fitted in the shaft portions 9 and 10. The shock absorbing member 3 and the wire mesh ring 4 attenuate vibrations in all directions orthogonal to the pipe axis of the piping 21.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a support device for piping installed in power plants, chemical plants, ships, etc. [Background technology]

[0002] BACKGROUND ART Patent Document 1 proposes a wire mesh spring vibration isolation device that absorbs vibrations of a U-bolt transmitted from a pipe by applying a wire mesh spring to a structure in which the pipe is fixed with a U-bolt. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-145911 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned conventional wire mesh spring vibration isolation device is effective against vibration of the pipe in a direction perpendicular to the support surface of the structure supporting the pipe, but is not effective against vibration in other directions. Therefore, an object of the present invention is to provide a pipe support device that exhibits a damping effect against vibrations in all directions perpendicular to the pipe axis of the pipe. [Means for solving the problem]

[0005] In the following description, reference will be made to the reference numerals in the accompanying drawings, but the invention is not limited thereto. To solve the above problem, the piping support device 1 of the present invention holds a pipe 21 away from a first surface 22a of a structure 22. The piping support device 1 includes a U-bolt 2, a buffer member 3, a plurality of wire mesh rings 4, first and second support pipes 5 and 6, and first and second nuts 7 and 8. The U-bolt 2 has first and second shanks 9 and 10 that penetrate the structure 22 from the first surface 22a to the opposite second surface 22b, and a curved portion 11 connecting the shanks 9 and 10, and surrounds the pipe 21. The buffer member 3 includes a base plate 12, a wire mesh plate 13, and an abutment plate 14. The first and second shanks 9 and 10 of the U-bolt 2 are inserted into the buffer member 3 so as to be freely insertable and removable. The buffer member 3 is disposed between the pipe 21 and the first surface 22a of the structure 22 with the first and second shaft portions 9, 10 inserted therethrough. The wire mesh rings 4 are fitted in a continuous row onto the curved portion 11 of the U-bolt 2 so as to contact the outer periphery of the pipe 21. The first and second support pipes 5, 6 are fitted onto the first and second shaft portions 9, 10 of the U-bolt 2 so as to be interposed between the wire mesh rings 4 at both ends of the row and the buffer member 3, and hold the wire mesh rings 4 on the curved portion 11 of the U-bolt 2. The first and second nuts 7, 8 are threaded onto the first and second shaft portions 9, 10 of the U-bolt 2, respectively, so as to abut against the second surface 22b of the structure 22. Base plate 12 of buffer member 3 has first surface 12a that overlaps first surface 22a of structure 22 and second surface 12b on the opposite side, and first surface 13a of wire mesh plate 13 is bonded to second surface 12b. Wire mesh plate 13 has second surface 13b on the opposite side of first surface 13a, and first surface 14a of contact plate 14 is bonded to second surface 13b. Contact plate 14 has second surface 14b on the opposite side of first surface 14a, and second surface 14b abuts against the outer periphery of pipe 21. [Effects of the Invention]

[0006] According to the present invention, the wire mesh ring 4 and the wire mesh plate 13 have a damping effect against vibrations in all directions perpendicular to the pipe axis of the pipe 21, and can be easily assembled to existing pipes, providing a simple pipe support device. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a partially cutaway front view of a pipe support device according to the present invention. [Figure 2] 2 is a side view of the pipe support device of FIG. 1 with a portion cut away. DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of the present invention will be described with reference to the drawings. The piping support device 1 includes a U-bolt 2, a buffer member 3, multiple wire mesh rings 4, first and second support pipes 5, 6, and first and second nuts 7, 8, and holds the piping 21 away from the first surface 22a of the structure 22. Structural body 22 is, for example, a beam extending from a wall, floor, ceiling, or the like of a building, and in the illustrated embodiment is made of angle steel, and has first surface 22a facing piping 21 and second surface 22b on the opposite side. Structural body 22 also has a plurality of assembly holes 22c penetrating from the first surface to second surface 22b, for assembling piping support device 1.

[0009] The U-bolt 2 comprises a pair of parallel first and second shanks 9, 10, and an arc-shaped curved portion 11 connecting the shanks 9, 10. Threaded portions 9a, 10a are formed at the tips of the shanks 9, 10, respectively, and the curved portion 11 is formed in an arc shape that follows the outer diameter of the pipe 21. The U-bolt 2 surrounds the pipe 21, and the shanks 9, 10 pass through an assembly hole 22c of the structure 22 from the first surface 22a to the second surface 22b.

[0010] The buffer member 3 has a three-layer structure consisting of a base plate 12, a wire mesh plate 13, and a contact plate 14, through which the first and second shaft portions 9, 10 of the U-bolt 2 are inserted and removed freely, and in the inserted state is positioned between the piping 21 and the first surface 22a of the structure 22.

[0011] The base plate 12 has a first surface 12a that overlaps the first surface 22a of the structure 22 and a second surface 12b on the opposite side, and the first surface 13a of the wire mesh plate 13 is adhered to the second surface 12b. The base plate 12 has a pair of through holes 12c that pass through between the first surface 12a and the second surface 12b, corresponding to the assembly holes 22c of the structure 22. The shafts 9 and 10 of the U-bolt 2 can be inserted and removed through the through holes 12c.

[0012] The wire mesh plate 13 has a second surface 13b opposite to the first surface 13a, and a first surface 14a of the abutment plate 14 is bonded to the second surface 13b.

[0013] The abutment plate 14 has a second surface 14b opposite to the first surface 14a, and the second surface abuts against the outer periphery of the pipe 21. If the wire mesh plate 13 were to come into direct contact with the pipe 21, the contact between the two would be a line contact, and the load of the pipe 21 would be applied locally to this contact area. To avoid this and to allow the load of the pipe 21 to be evenly distributed over the entire wire mesh plate 13, the abutment plate 14 is interposed between the wire mesh plate 13 and the pipe 21.

[0014] Multiple wire mesh rings 4 are fitted in a continuous row in an uncompressed state into the curved portion 11 of the U-bolt 2 so that each is in contact with the outer periphery of the pipe 21. If a single cylindrical wire mesh were to be bent and fitted into the curved portion 11, the inner periphery of the bend would be compressed and the desired spring characteristics would be lost, but because multiple wire mesh rings 4 are fitted in a divided shape, the individual wire mesh rings 4 are not compressed. Therefore, the desired spring characteristics of the wire mesh rings 4 are not lost.

[0015] The row of wire mesh rings 4 is formed so that the wire mesh rings 4 at both ends are positioned at a position including the center line CL of the piping 21 in the horizontal direction (parallel to the first surface 22a of the structure 22) in Figure 1, or at a position closer to the structure 22.

[0016] The first and second support pipes 5, 6 are fitted into the first and second shaft portions 9, 10 of the U-bolt 2, respectively, so as to be interposed between both ends of the row of wire mesh rings 4 and the base plate 12 of the buffer member 3, and hold the wire mesh rings 4 to the curved portion 11 of the U-bolt 2.

[0017] The shafts 9 and 10 of the U-bolt 2 are inserted into the assembly holes 22c of the structure 22 via the through holes 12c of the base plate 12. First and second nuts 7 and 8 are screwed onto the threaded portions 9a and 10a of the first and second shafts 9 and 10, respectively, which protrude from the second surface 22b of the structure 22 through the assembly holes 22c, and are tightened so that they abut against the second surface 22b of the structure 22. Tightening the nuts 7 and 8 adjusts the wire mesh plate 13 so that it is not compressed.

[0018] Pipe support device 1 having the above configuration can attenuate vibrations of pipe 21 in all directions perpendicular to the pipe axis by means of wire mesh plate 13 of buffer member 3 and a plurality of wire mesh rings 4. [Explanation of symbols]

[0019] 1 Piping support device 2 U-bolts 3. Cushioning material 4 wire mesh rings 5 First support pipe 6 Second support pipe 7 First Nut 8 Second Nut 9 First shaft 9a Threaded part 10 Second shaft 10a Threaded part 11 Curved section 12 Base plate 12a First Side 12b Second Side 12c through hole 13 Wire mesh plate 13a First Side 13b Second Side 14 Contact plate 14a First Side 14b Second Side 21 Piping 22 Structure 22a First Side 22b Second Side 22c Assembly hole CL center line

Claims

1. A support device for holding a pipe away from a first surface of a structure, the support device comprising: a U-bolt surrounding the piping, the U-bolt having first and second shaft portions that respectively penetrate the structure from the first surface to a second surface opposite the first surface and a curved portion that connects the two shaft portions; a buffer member into which the first and second shaft portions of the U-bolt are inserted so as to be freely insertable and removable, and which is disposed between the piping and the first surface of the structure in a state in which the first and second shaft portions are inserted; a plurality of wire mesh rings fitted in a continuous row to the curved portion of the U-bolt so as to contact the outer periphery of the pipe; first and second support pipes that are fitted into the first and second shaft portions of the U-bolt and are interposed between the buffer member and each of the wire mesh rings arranged at both ends of the row of the plurality of wire mesh rings fitted into the U-bolt, and that hold the wire mesh rings in the curved portion of the U-bolt; first and second nuts that are respectively threaded onto the first and second shanks of the U-bolt so as to abut against the second surface of the structure; The buffer member is characterized in that it comprises a base plate having a first surface overlapping the first surface of the structure and a second surface opposite the first surface, a wire mesh plate having a first surface adhered to the second surface of the base plate and a second surface opposite the first surface, and an abutment plate having a first surface adhered to the second surface of the wire mesh plate and a second surface abutting the outer circumference of the pipe.

2. 2. The pipe support device according to claim 1, wherein the wire mesh ring and the wire mesh plate are assembled in a non-compressed state.

3. The piping support device described in claim 1, characterized in that the two wire mesh rings at both ends of the row of wire mesh rings are positioned on a center line of the piping that is parallel to the first surface of the structure and is closer to the first surface.

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