JP3489549B2 - Sliding liner for pipe band - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe support structure (wear stop) provided on a mount when a pipe such as a cargo pipe of a liquid transportation ship expands and contracts due to temperature change.

[0002]

2. Description of the Related Art Conventionally, in this type of invention, as shown in FIG. 2, a gantry 31 is provided, and a pipe 3 is provided on the gantry 31.
2 was piped.

In the case of carbon steel, the temperature of pipe 32 depends on the linear expansion coefficient of the material.
It expands and contracts by about ± 60 mm with 0 degree change. In addition, stainless steel has a coefficient of linear expansion that is almost twice that of stainless steel, and is about ±
It expands and contracts about 110 mm.

The pipe 32 is connected between devices or valves (not shown), but in order to avoid vibration and other external force and mechanical damage, a U-band of a predetermined size is mounted on the mount 31 via a liner 33. It was fastened by 34 and nut 35.

The pedestal 31 is generally made of carbon steel with a paint applied, and a equine angle steel is used to form a gate, and a pipe 32 is laid on the hull.

The frame 31 has a pair of perforation holes 36 formed at predetermined U-band 34 intervals according to the diameter of the pipe 32.

As shown in FIG. 2 (a), the liner 33 is a resin-based flat plate liner having a length of about 10 mm, and holes 38 are provided at predetermined intervals on the longitudinal center line.

Further, the frame 31 is provided with a pair of drill holes 37 inside the drill holes 36 at the same intervals as the holes 38 of the liner 33.

The nut 3 is provided on the lower surface of the drill hole 37 of the frame 31.
9 was welded, and a bolt 41 having the same diameter as the nut 39 was screwed through a spring washer 40.

The bolts 41 screwed on were projected on the upper surface of the pedestal 31, the holes 38 of the flat plate liner 33 were fitted, and the liner 33 was stationary.

The pipe 3 is provided on the liner 33 at a substantially central portion.
2 is piped, the threaded portion of the U-band 34 having a predetermined size penetrates through the drill hole 36, and is tightened by two nuts 35. A predetermined gap is maintained between the outer circumference of the pipe 32 and the inner circumference of the U-band 34. Was there.

[0012]

As described in the prior art, the pipe expands and contracts by several tens of mm depending on the temperature of the liquid flowing in the pipe. In order to do so, there is a problem in construction that it takes a lot of time and labor for welding work such as welding work of nuts, touch-up of paint, drilling holes for penetrating bolts and screwing bolts.

Further, since it is a flat liner having a constant area in order to receive a constant load and to be fixed, the flat liner has a large contact area with the pipe, so that the frictional force is large, and when the pipe is expanded or contracted, it is pedestal. There was a problem that the force was transmitted to.

Further, since the flat liner has a large contact area with the pedestal, although it is painted, it is impregnated with seawater and the temperature of the contact surface is affected by the temperature of the liquid in the pipe. However, the environment of the contact surface was not good and the environment was not easy to maintain, and there were problems such as causing rust.

The present invention has been made in view of such inadequacies of the prior art, and an object thereof is to use a pushpin type liner molded by a hard resin. The construction is easy, the contact area with the pipe is small and slippery, the contact area with the pedestal is small, and the seawater impregnated on the contact surface is also drained from the drill hole to prevent rust.

[0016]

To achieve the above object of the Invention The, the present invention is a pipe support structure pipe on top of the pedestal is fastened by a predetermined size of the U-band and nut through the liner, the upper Is a disk in the lower surface of the disk
Molded pushpin type with a cylindrical leg protruding in the center
The liner and the pedestal have a pair of first through which the U band penetrates .
A first drilled hole, said a substantially central portion of the drilled hole of said pair pushpin
The legs of the die liner are fitted and the pushpin type liner
Provided through the second <br/> drilled hole for draining impregnated seawater between the lower surface and the platform, the legs of the liner the liner is inserted into the second drilled hole of the central portion The lower surface of the disk is placed directly on the pedestal, and the pipe is laid on the upper surface of the liner.
It is fastened with a band and a nut. Claiming the application
The pipe support structure according to claim 1 according to claim 2 is a liner
Has a gentle spherical surface on the upper surface of the upper disk. Claims
The pipe support structure according to claim 1 according to claim 3,
Several continuous grooves are provided on the lower surface of the upper disk and the outer circumference of the leg.
It

The liner has a gentle spherical surface on the upper disk.

Several continuous kerfs are provided on the lower surface of the upper disc of the liner and the outer circumference of the leg.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is applicable to the exposure of ships and the like.
A liner provided between the pipe and the gantry when the pipe attached by the bunt expands or contracts due to the temperature of the liquid flowing in the pipe or the outside air temperature, or when the hull is bent or twisted due to sagging or hogging. Using a pushpin type liner molded with hard resin,
The contact area between the thumbtack-shaped liner and the pipe is minimized to minimize the frictional resistance so that the pipe follows, and the contact area between the thumbtack-shaped liner and the mount is minimized. Is provided, and also serves as a hole for fitting the protrusion and a drill hole for draining seawater impregnated between the liner and the gantry.

[0020]

[Example] As shown in FIG.
The pipe 2 is fastened to the upper part of the gantry 1 via the liner 3 by the U band 4 of a predetermined size and the nut 5.

The gantry 1 is usually a paint of carbon steel, and is equilateral angle steel is used to form a gate, and a pipe 2 is laid on the hull.

The frame 1 is provided with a pair of drill holes 6 at predetermined U-band 4 intervals according to the diameter of the pipe 2.

Further, in the gantry 1, a drill hole 7 is provided so as to penetrate substantially the center of the pair of drill holes 6.

The liner 3 is, as shown in FIG.
A cylindrical leg 3L with a diameter of about 30 mm and a thickness of about 10 mm, and a protrusion of about 10 mm in diameter and several mm.
It is a hard-resin-molded pushpin-shaped liner (wear stop) having a bottom surface in the center.

The protrusion on the lower surface of the liner 3 is inserted into the drill hole 7 of the gantry 1, the pipe 2 is piped on the upper surface of the liner, and the threaded portion of the U bolt 4 of a predetermined size penetrates the drill hole 6 and the nut 5 By screwing the face plate of the gantry 1 from above and below, a predetermined gap is laid between the outer periphery of the pipe 2 and the inner periphery of the U band 4.

The liner 3 has a basic pushpin shape, but as shown in FIG. 1 (b), it has a gentle spherical surface 3b on the upper surface of the upper disk to reduce the contact area with the pipe 2. It is something to try.

As an example, as shown in FIG. 1 (c), the liner 3 has a lower surface 3C of the upper disc and a plurality of continuous cut grooves 3d on the outer circumference of the leg 3L.
On the upper surface of C and the pedestal 1, the invaded seawater is guided and drained from the drill hole 7.

[0028]

Since the present invention is configured as described above, it has the following effects. This invention, by using the pushpin type liner, facilitates the construction of the plumbing work, has less frictional resistance with the pipe, does not apply force to the gantry, and has a small contact area between the liner and the gantry,
Seawater impregnated on the contact surface is also drained from the drill hole to prevent corrosion of the mount.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a pipe support according to the present invention. (A) is a perspective view schematically showing a pushpin-shaped liner. (B) is a second embodiment of a pushpin type liner, and (c) is a schematic view of a third example of a pushpin type liner.

FIG. 2 is a schematic cross-sectional view of a conventional pipe support. (A) is a perspective view of a flat liner.

[Explanation of symbols]

1 stand 2 pipes 3 liner 3b spherical surface 3c lower surface 3d kerf 3L leg 4 U bolt 5 nuts 6 drill holes 7 drill holes

Claims (3)

(57) [Claims] 1. A pipe support structure in which a pipe is fastened to an upper part of a pedestal with a U-band of a predetermined size and a nut through a liner, and the upper part is a disk and is located at the center of the lower surface of the disk.
Molded thumbtack lie with protruding cylindrical legs
Of the pair of first drill holes through which the U-band penetrates, and the thumbtack-shaped lathe at a substantially central portion of the pair of drill holes.
The bottom of the thumbtack liner with the legs of the inner fitted.
And provided through the second drilled hole for draining impregnated seawater during the frame, first leg of the liner of the central portion
The pipe support is characterized in that it is inserted into the drill hole of No. 2 and the lower surface of the disk of the liner is directly placed on the pedestal, the pipe is laid on the upper surface of the liner, and it is fastened with the U band and the nut.
Holding structure . 2. The pipe support structure according to claim 1, wherein a top surface of the upper disc of the liner has a gentle spherical surface. 3. The pipe support structure according to claim 1, wherein several continuous cut grooves are provided on the lower surface of the upper disc of the liner and the outer circumference of the leg.
Structure .