JPH1026261A - Piping support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To support piping in such a way that the pipe axial center of piping will never be dislocated vertically even if piping is thermally expanded or contracted. SOLUTION: Support arms 2 are fixedly provided for the right and left positions in the outer circumferential surface of piping 1. Each support arm 2 is overhanged along a horizontal line L perpendiculary intersected with the axial center O of a pipe. A right and a left frame 4 are set so as to allow piping 1 to be put in between the right and left. The support arms 2 are rested on the right and left frames 4 so as to allow piping 1 to be supported. And liners 6 made of fluorocarbon resin are stuck on the lower surfaces of the support arms 2, so that the support arms 2 are thereby made freely slid over the horizontal frames 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping support device for handling a thermal fluid.

[0002]

2. Description of the Related Art There are various types of methods for supporting a fluid transfer pipe used in various plants and the like.
Among such support types, there is a type that supports a pipe disposed above a base surface such as a foundation or a floor from below, instead of suspending from a ceiling or supporting from a wall.

An example of a type for supporting a pipe from below is shown in FIG. 4. As shown in FIG. 4, a support member c having a shape matching the outer diameter of a pipe b to support an upper surface is provided on a base surface a.
Is installed, and the pipe b is placed on the upper surface of the support member c to support it.

[0004]

However, in the case of the pipe support type shown in FIG. 4, the fluid flowing in the pipe b is
For example, when the fluid is a high temperature fluid, the pipe b thermally expands as shown by a two-dot chain line. On the other hand, when the fluid is a low temperature fluid, the pipe b thermally contracts as shown by a dashed line. At this time, since the pipe b is supported from below by the support member c, the pipe axis o shifts upward when thermally expanded, and the pipe axis o shifts downward when thermally contracted, In any case, the pipe axis o is shifted in the vertical direction.

[0005] This vertical displacement of the pipe axis o requires strict installation accuracy, for example, where stress is concentrated on the connection with the transfer pump or excessive force acts on the anchor point. This is an important issue for piping.

Therefore, the present invention can be applied to pipes requiring strict installation accuracy by preventing the axial center of the pipe from shifting in the vertical direction even by thermal expansion or thermal contraction. It is intended to provide a piping support device.

[0007]

According to the present invention, in order to solve the above-mentioned problems, left and right support arms are fixed to right and left positions of an outer peripheral surface of a pipe so as to project in a direction perpendicular to a pipe axis. And a configuration in which the left and right support arms are mounted movably in the horizontal direction on left and right horizontal pedestals installed facing each other at an interval larger than the outer diameter of the pipe to support the pipe. I do.

[0008] Since the pipe is supported by the horizontal frame via the left and right support arms, thermal expansion and thermal contraction are performed around the pipe axis, so that vertical displacement of the pipe axis is prevented. Is done.

Further, by adopting a structure in which a fluororesin is attached to the lower surface of the support arm or the upper surface of the horizontal mount,
The frictional resistance when the support arm moves on the horizontal gantry with the thermal expansion and thermal contraction of the pipe can be reduced.

Further, a support block is provided below the outer peripheral surface of the pipe so as to protrude downward, and a stopper for restricting the lower end of the support block in the left-right direction is provided on the fixing member. Thereby, the displacement of the pipe in the left-right direction can be prevented from being largely shifted.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of the present invention. Left and right support arms 2 made of SUS are provided at the left and right positions on the outer peripheral surface of a pipe 1 arranged in a horizontal direction. The left and right horizontal pedestals 4 are fixed by a lower beam 3 and fixed to each other so that the lower surface thereof protrudes along a horizontal line L perpendicular to the horizontal line L. It is installed on a block 5, and the left and right support arms 2 of the pipe 1 are mounted on the left and right horizontal gantry 4 so as to be movable in the horizontal direction so as to support the pipe 1. A liner 6 made of fluorocarbon resin (Teflon) is attached to the upper surface of the left and right horizontal gantry 4 that slides with the lower surface of the pipe, and a support block 7 is provided at a lower position of the outer peripheral surface of the pipe 1 so as to protrude downward. , Below the support block On the lower beam 3 which is attached to the left and right stoppers 8 for regulating the lateral direction of the predetermined amount or more of the displacement of the support block 7.

In the pipe 1, an anchor point for restraining the entire laying position is separately determined.

When, for example, a high-temperature fluid flows in the pipe 1, the pipe 1 undergoes thermal expansion from a solid line state to a two-dot chain line state in FIG. The lower surfaces of the provided left and right support arms 2 are on a horizontal line L passing through the pipe axis O, and the support arms 2 are merely movably mounted on a horizontal gantry 4.
Since the upper and lower portions of the pipe 1 are not fixed, the pipe axis O
Does not shift in the vertical direction. Further, the displacement in the left and right direction due to the thermal expansion of the pipe 1 is absorbed by the movement of the support arm 2 with respect to the horizontal gantry 4. At this time, the support arm 2 is made of SUS, and a liner 6 made of fluororesin is attached to the upper surface of the horizontal gantry 4 so that the frictional resistance is reduced, so that the support arm 2 moves smoothly. be able to. Furthermore, since the support block 7 protrudes at a lower position of the pipe 1 and the displacement of a predetermined amount or more is regulated by the left and right stoppers 8, the pipe 1 is largely shifted in the left and right direction. There is no. Even if the pipe 1 is displaced in the longitudinal direction, the support arm 2 can be absorbed by moving on the horizontal gantry 4.

On the other hand, when a low-temperature fluid flows through the pipe 1, the pipe 1 undergoes thermal contraction from the solid line state to the dash-dot line state in FIG. Since the pipe axis O of the pipe 1 is held on a horizontal line L passing through the pipe axis O, the pipe axis O
Does not shift in the vertical direction.

As described above, in the present invention, the upper and lower portions of the pipe 1 are not fixed in position, and the displacement accompanying the thermal expansion and thermal contraction of the pipe 1 can be performed about the pipe axis O. Therefore, vertical displacement of the pipe axis O can be prevented, and therefore, pipes requiring strict installation accuracy can be supported in a stable state.

In the above embodiment, the case where the support arm 2 is made of SUS and the liner 6 made of fluororesin is stuck on the upper surface of the horizontal gantry 4 is shown in the above embodiment. In addition, in the embodiment, the case where the stopper 8 for the support block 7 is provided on the lower beam 3 as the fixing member for connecting the horizontal gantry 4 is shown. Stopper 8
It goes without saying that various changes can be made without departing from the spirit of the present invention.

[0018]

As described above, according to the piping support device of the present invention, the following excellent effects are exhibited. (1) Left and right support arms are fixed at left and right positions on the outer peripheral surface of the pipe so as to project in the direction perpendicular to the pipe axis, and are installed facing each other at a wider interval than the outer diameter of the pipe. The left and right support arms are movably mounted in the horizontal direction on the horizontal base to support the pipes, so that the displacement caused by thermal expansion and contraction of the pipes is It can be performed at the center and can be absorbed by the movement of the support arm with respect to the horizontal gantry, thereby preventing the vertical displacement of the pipe axis and the pipes that require strict installation accuracy Can be supported in a stable state. (2) By adopting a structure in which the fluororesin is attached to the lower surface of the support arm or the upper surface of the horizontal gantry, the support arm can be moved more smoothly with respect to the horizontal gantry. (3) By providing a support block at a lower position of the outer peripheral surface of the pipe so as to protrude downward, and having a stopper on the fixing member for regulating the lower end of the support block in the left-right direction. In addition, the movement of the pipe in the left-right direction can be prevented from being largely deviated, and further stabilization can be achieved.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a piping support device of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a view as viewed in the direction of arrows AA in FIG. 1;

FIG. 4 is a schematic view showing an example of a conventional pipe support type.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Piping 2 Support arm 3 Lower beam (fixing member) 4 Horizontal stand 7 Support block 8 Stopper O Pipe axis

Claims (3)

[Claims] 1. A left and right support arm is fixedly provided at right and left positions of an outer peripheral surface of a pipe so as to project in a direction orthogonal to a pipe axis, and is installed so as to face at a wider interval than an outer diameter of the pipe. A piping support device having a configuration in which the left and right support arms are movably mounted in a horizontal direction on the left and right horizontal frames to support the piping. 2. The piping support device according to claim 1, wherein a fluororesin is attached to a lower surface of the support arm or an upper surface of the horizontal mount. 3. A support block is provided at a lower position of an outer peripheral surface of a pipe so as to protrude downward, and a stopper for regulating a lower end portion of the support block in a left-right direction is provided on a fixing member. Or the piping support device according to 2.