JP2742038B2 - Piping support structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The technical field to which the present invention relates relates to restraint support means for restraining pipes.

[0002]

2. Description of the Related Art As means for restraining a pipe from moving due to an external force such as an earthquake or thermal displacement, there is a pipe restraining support means.

As shown in FIGS. 11 to 24, the restraining support means changes the shape of the pipe lug 1 attached to the pipe in the restraining direction (the direction of the restraint) or by the restraining support means. .

That is, FIGS. 11 and 12 show a restraint in all directions (in the direction of the pipe axis and in a plane perpendicular to the pipe axis) in the case of a steel material surrounding a rectangular space through which the pipe 2 passes. (Supporting structure) is made of a welded structure, and is vertically fixed to the embedded metal member 4 fixed to the skeleton 5. On the other hand, the outer edge of the entire circumference of the pipe 2 is circular as shown in FIG.
The square pipe lug 1 is fixed as shown in FIG. These pipe lugs 1 are fixed to the support structure 3 by welding or the like. Therefore, displacement of the pipe 2 in all directions is restricted.

The restraining support means shown in FIGS. 13 and 14 uses a support structure 3 having the same structure as that of FIG. Four pipe lugs 1 are individually adjusted in position and fixed at four places of the pipe 2 facing the horizontal beam and the vertical column constituting the support structure 3. The lower pipe lug 1 is fixedly mounted on the upper surface of the lower horizontal beam constituting the support structure 3. There is a gap between the other pipe lug 1 and the support structure 3. For this reason, the position of the pipe 2 can be displaced in the pipe axis direction and in all directions in a plane orthogonal to the pipe axis.

The restraining support means shown in FIGS. 15, 16 and 17 achieves axial restraint of the pipe 2 by adding a pipe attachment 6 to the examples of FIGS. The pipe attachment 6 is attached to the two pipe lugs 1 in the horizontal direction, and is further engaged with the vertical column of the support structure 3 by meshing with the pipe 2 in the axial direction. Therefore, the displacement of the pipe 2 in the axial direction can be restrained as compared with the examples shown in FIGS.

FIGS. 18 and 19 show a modification of the embodiment of FIGS. 15 and 16, in which the pipe lug 1 itself is engaged with the vertical column of the support structure 3 in the axial direction of the pipe 2 without using the pipe attachment 6. It is a thing.

FIGS. 20 and 21 show a snubber or spring type vibration damping support structure in which a vertical pipe 2 is rotatably supported by a shaft mounted from a metal fitting 4 fixed to a frame 4 as a fixed structure. This is an example of restraining by a container 7. In this example, piping lug 1
Adjust the position of attachment to the pipe 2 and the length of the pipe lug so that it protrudes from the lower end of the spring type vibration isolator 7, and fix it to the pipe 2, and rotate the pipe lug 1 to the lower end of the spring type vibration isolator 7. The spring-type vibration isolator 7 gives a restraining force on the movement of the pipe 2 in the pipe axial direction.

In the example shown in FIG. 22, the horizontal pipe 2 is restrained by a snubber or a spring type vibration isolator 7 which is a support structure rotatably mounted on an embedded metal member 4 which is fixed to a frame 4 which is a fixed structure. Here is an example. In this example, the spring type vibration isolator 7 is inclined at 45 degrees, and the pipe lug 1 is attached to the pipe 2 in the circumferential and axial directions so as to protrude to the lower end of the spring type vibration isolator 7. The length of the pipe 2 is fixed and attached to the pipe 2, and the pipe lug 1 is rotatably mounted on the lower end of the spring-type vibration isolator 7. A binding force is applied by the vibration isolator 7.

In the examples shown in FIGS. 23 and 24, an embedded metal member 4 in which a vertical pipe 2 is fixed to a frame 4 which is a fixed structure is used.
A variable-moving or non-variable supporting structure which is a supporting structure rotatably mounted on and supported by a swing, such as a spring hanger 8 as a variable-moving type and a constant hanger as a non-variable type. 2 restricts downward movement. In this example, the pipe lug 1 is fixedly attached to the pipe 2 by adjusting the position of attachment to the pipe 2 and the length of the pipe lug so as to protrude from the lower end of the spring hanger 8, and the pipe lug 1 is attached to the lower end of the spring hanger 8. It is rotatably mounted on a shaft, and a spring hanger 8 applies a restraining force to the downward movement of the pipe 2 in the pipe axial direction.

As a conventional example close to the present invention, Japanese Utility Model Application Laid-Open No. 58-15
JP-A-8875 and JP-A-61-133185 are listed.

[0012]

The pipe lugs to be assembled to the conventional pipe support structure have been formed in different shapes depending on the type of support structure and the direction of restraint.

Therefore, when attaching the lug to the pipe,
The lug mounting position, the circumferential position of the pipe, and the lug shape were selected. In addition, when the type of the support structure and the restraining direction were changed due to the design change, the pipe lug was changed. For this reason, there are various types of pipe lugs corresponding to the pipe support structure.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a single kind of a multiplicity of support structures and a pipe support structure applicable to a restraining direction.

[0015]

According to a first aspect of the present invention, there is provided a pipe supporting structure in which a pipe lug attached to a pipe is assembled to a support structure. A pipe supporting structure fixed to the entire periphery and formed in a single plate shape having an outer edge formed in an octagon, and at least one side thereof is an engagement portion with the support structure. It has an octagonal shape, easy to restrain the rotation of the pipe, and each side of the octagon is dispersed in eight directions as a joint with the support structure, and it can be connected with various kinds of support structures and can be various It is possible to obtain a function and effect that it is possible to restrain from a variety of directions, and since the connecting portion is also a straight side, it is easier than connecting at a point.

Similarly, the second means is the first means,
The support structure is a structure in which a space is formed in a quadrangular shape, and the pipe lug is formed in the following size such that a side forming an outer edge is inscribed in the support structure surrounding the space, and is formed in the space. A pipe support structure, wherein the pipe lug is assembled, and in addition to the function and effect of the first means, a side of the pipe lug contacts the support structure to restrict the movement of the pipe; And the effect of each action is transmitted between the pipe lug and the support structure via the side, so that the effect of being more reasonable than point contact is obtained. Can be

A third means is the pipe support according to the second means, wherein a lower side of the pipe lug is fixedly mounted on the support structure in the space in a non-fixed manner. With the structure, the pipe lug can move in the pipe axial direction without being fixed to the support structure, and in addition to the function and effect of the second means, the function and effect of expanding the freedom of not restricting the axial movement of the pipe can be obtained. Can be

[0018] A fourth means is the second means, wherein the pipe lug is assembled in the space with the vertical side and / or the horizontal side fixed to a support structure. In addition to the function and effect of the second means, the pipe lug is fixed to the support structure and cannot move, so the pipe attached to the pipe lug is restricted without any degree of freedom in movement. The operation and effect are obtained.

A fifth means is the same as the first means, wherein a pipe lug attachment is fixedly attached to at least one side of the octagonal pipe lug, and a supporting structure is provided on the pipe lug attachment and a fixed structure adjacent to the pipe. A pipe support structure characterized in that objects are rotatably connected to each other to assemble a support structure and a pipe lug. In addition to the effects of the first means, the support structure is parallel to the pipe axis. To restrict the axial movement of the pipe by rotating the pipe, or to tilt the support structure at 45 degrees in a plane perpendicular to the pipe axis to select the direction in which the pipe movement is restricted from an oblique direction. The effect is obtained.

A sixth means is the pipe supporting structure according to the fifth means, wherein the supporting structure is any one of a bar-shaped restraint, a snubber, a spring type vibration isolator, a spring hanger, and a constant hanger. Therefore, the effect of the fifth means can be achieved even if any of a plurality of specific support structures is selected and adopted.

[0021]

1 and 2 show a piping lug 1 used in the following embodiments of the present invention.

A metal pipe 2 is passed through the center of the metal pipe lug 1, and the pipe lug 1 is fixedly provided around the entire circumference of the pipe 2.

The means for fixing the pipe 2 and the pipe lug 1 is by welding.

The outer edge of the pipe lug 1 is formed in an octagonal shape, and has a single-plate configuration.

When the pipe 2 has a large diameter, the pipe lug 1
Since it is inconvenient to work with a single plate or to handle it when attaching it to the pipe 2, it is divided into two parts, and when it is fixed to the pipe 2, it is made into a single plate by welding.

The piping lug 1 shown in FIGS. 1 and 2 is used as follows.

The first embodiment shown in FIG. 3 is an anchor-type pipe restraining support structure having no flexibility in the movement of the pipe 2.

In FIG. 3, each steel material perpendicular to the embedded hardware 4 embedded and fixed to the frame 5 is used for each column, and steel materials in upper and lower stages are fixed between the columns by welding and used for horizontal beams. Thus, the support structure 3 is configured as a whole.

Therefore, the support structure 3 has a rectangular space surrounded by upper and lower horizontal beams and left and right columns, and the space is used as a passage through which the pipe 2 passes.

The metal pipe lug 1 fixed to the metal pipe 2 is passed through the space together with the pipe 2 to form the pipe lug 1.
Inside the space, the upper and lower sides and the left and right sides of the pipe lug 1 are disposed close to each other as if they contact the support structure 3.

The upper and lower sides and the left and right sides of the pipe lug 1 are fixed to the support structure 3 by welding.

According to the first embodiment, the pipe 2 is fixed to the pipe lug 1 and the pipe lug 1 is
The pipe 2 is prevented from moving due to an external force such as an earthquake or a thermal displacement of the pipe 2 itself, and is prevented from moving, and is restrained at a fixed position.
Supported by

The second embodiment shown in FIG. 4 provides the degree of freedom of the displacement only in the axial direction of the pipe 2 and the movement in the plane perpendicular to the axis of the pipe 2 (the horizontal and vertical directions). 1 and 2 are used in an example (two-way restrent system) in which the pipe lug 1 is restricted.

As in the first embodiment, the supporting structure 3 is
A metal pipe lug 1 fixed to a metal pipe 2 is fixed in a rectangular space formed by the support structure 3 and fixed to an embedded metal piece 4 embedded and fixed in the metal pipe lug 1.

The support structure 3 is structurally the same as that of the first embodiment, except that a rectangular space is formed between the support structure 3 and the upper side of the pipe lug 1, and between the support structure 3 and the pipe lug 1. Are expanded so as to have a gap of several millimeters between the left and right sides of the pipe to absorb the thermal expansion of the pipe 2 and the pipe lug 1.

The pipe lug 1 has a lower side mounted on the upward surface of the horizontal beam below the support structure 3.
The relationship between the support structure 3 and the support structure 3 is non-fixed.

According to the second embodiment, the pipe 2 is fixed to the pipe lug 1, but since the pipe lug 1 is not fixed to the support structure 3, the pipe 2 is fixed to an external part such as an earthquake. If the pipe 2 is to be displaced due to a force from the pipe 2 or the thermal displacement of the pipe 2 itself, the movement of the pipe 2 in the axial direction is not prevented because the lower side of the pipe lug 1 slides on the support structure 3.

When movement in a plane perpendicular to the axis of the pipe 2 (two directions, left and right and up and down) occurs, the above-described gap dimension allows the movement, but any further movement is caused by the pipe. Any side of the lug 1 in the left-right direction or the up-down direction hits the support structure 3 and is restrained.

When used in an environment where the above-mentioned expansion does not need to be considered, the above-mentioned gap does not have to be provided.

The third embodiment shown in FIG. 5, FIG. 6, and FIG.
An example in which the movement in the axial direction of the pipe 2 and the movement in a plane perpendicular to the axis of the pipe 2 (two directions of the horizontal direction and the vertical direction) are restricted (3).
1 shows a case in which the pipe lug 1 shown in FIGS. As in the first embodiment, the support structure 3 is fixed to an embedded metal member 4 embedded and fixed in a frame 5 and is fixed to a metal pipe 2 in a rectangular space formed by the support structure 3. A metal pipe lug 1 is arranged.

The support structure 3 is structurally the same as that of the first embodiment, but has a rectangular space.

Each horizontal beam above and below the support structure 3 has:
The piping lug attachment 6 is fixed.

The pipe lug attachment 6 includes the pipe lug 1
The base plate 10 is placed at an interval where the
It is composed of two rib plates 11 fixed to the base plate.

The upper and lower sides of the pipe lug 1 fixed to the pipe 2 are sandwiched by rib plates 11 in the axial direction of the pipe 2.

Further, the pipe 2 and the pipe lug 1 are located between the upper side of the pipe lug 1 and the base plate 10 adjacent thereto.
There is a gap of several millimeters for absorbing the expansion of the slab.

Similarly, a gap of several millimeters is provided between each of the left and right sides of the pipe lug 1 and the support structure 3 to absorb the expansion of the pipe 2 and the pipe lug 1.

According to the third embodiment, since the pipe lug 1 fixed to the pipe 2 is sandwiched by the pipe lug attachment 6 from the axial direction of the pipe 2, the pipe 2 is not exposed to an external force such as an earthquake. If the pipe lug 1 moves to the axial direction of the pipe 2 due to the force from the pipe 2 or the thermal displacement of the pipe 2 itself, the pipe lug 1 hits the rib plate 11 of the pipe lug attachment 6 and is prevented from moving. Be bound.

When a movement in a plane perpendicular to the axis of the pipe 2 (two directions, that is, a horizontal direction and a vertical direction) occurs, the above-described gap dimension allows the movement, but any further movement is caused by the piping. The left and right sides of the lug 1 hit the support structure 3, or the up and down sides hit the base plate 10 and are constrained.

When used in an environment where the above-mentioned expansion does not need to be considered, the above-mentioned gap does not have to be provided.

The fourth embodiment shown in FIG. 8 is an example in which the pipe lug 1 shown in FIGS. 1 and 2 is used to satisfy the requirement of restraining the vertical pipe 2 from moving in the axial direction of the pipe 2.

A pipe lug attachment 6 is attached so as to sandwich one side of the pipe lug 1 fixed to the pipe 2 from above and below, and the pipe lug attachment 6 is fixed to the pipe lug 1 by welding.

The pipe lug attachment 6 includes the pipe lug 1
The base plate 10 is placed at an interval where the
It is composed of two rib plates 11 fixed to the base plate.

The base plate 10 has a blanket 13
Is fixed.

The blanket 13 is also fixed to the embedded hardware 4 embedded and fixed in the frame 5.

An upper end and a lower end of a snubber or spring type vibration isolator 7 as a support structure are rotatably connected to respective blankets 13 by respective shafts 12.

When the pipe 2 moves to the left and right, relative rotation occurs between the bracket 13 and the spring type vibration isolator 7 about the shaft 12, and the movement is allowed to perform an unreasonable action. Not. When movement in all directions in the horizontal plane is permitted, the shaft 12 may be changed to a universal joint such as a universal joint.

When the pipe 2 vibrates in the pipe axis direction (vertical direction), the vibration operating force is transmitted through the pipe lug 1, the pipe lug attachment 6, and the blanket 13 to the spring vibration isolator 7.
The vibration operation force is attenuated by the spring type vibration isolator 7, and the vibration operation is quickly converged.

For this reason, the movement of the pipe 2 due to the vibration in the pipe axis direction is restricted.

The fifth embodiment shown in FIG. 9 is an example in which the pipe lug 1 shown in FIGS. 1 and 2 is used to satisfy the requirement of restricting the movement of the horizontal pipe 2 in a plane perpendicular to the pipe axis. .

A pipe lug attachment 6 is attached so as to sandwich one side of the pipe lug 1 fixed to the pipe 2, and the pipe lug attachment 6 is fixed to the pipe lug 1 by welding.

The pipe lug attachment 6 includes the pipe lug 1
The base plate 10 is placed at an interval where the
It is composed of two rib plates 11 fixed to the base plate.

The base plate 10 has a blanket 13
Is fixed.

The blanket 13 is also fixed to the embedded hardware 4 embedded and fixed in the frame 5.

The upper and lower ends of the snubber or spring type vibration isolator 7 are rotatably connected to the respective blankets 13 by the respective shafts 12.

When the pipe 2 vibrates up and down and right and left and moves, the movement is transmitted to the spring type vibration isolator 7 via the pipe lug 1, the pipe lug attachment 6 and the blanket 13, and the vibration operation is performed by a spring type The vibration is attenuated by the vibration isolator 7, and the vibration operation is quickly converged.

In order to attenuate the vertical and horizontal vibrations, the axis is directed parallel to the two axial directions of the pipe, and the spring type vibration isolator 7 has a posture angle of 45 degrees.

If it is sufficient to only attenuate one of the upper, lower, left and right vibrations, the spring type vibration isolator 7 is set in a horizontal or vertical posture.

If it is desired to attenuate the vibration in the direction of the pipe axis, the shaft 12 may be changed to a universal joint such as a universal joint.

The sixth embodiment shown in FIG. 10 is an example in which the pipe lug 1 shown in FIGS. 1 and 2 is used to satisfy the requirement of restraining the vertical pipe 2 from moving in the pipe axial direction.

Two pipe lug attachments 6 are attached so as to sandwich the left and right two sides of the pipe lug 1 fixed to the pipe 2 from above and below, and each pipe lug attachment 6 is fixed to the pipe lug 1 by welding.

The pipe lug attachment 6 includes the pipe lug 1
The base plate 10 is placed at an interval where the
It is composed of two rib plates 11 fixed to the base plate.

A blanket 13 is provided on the base plate 10.
Is fixed.

The blanket 13 is also fixed to the embedded hardware 4 embedded and fixed to the frame 5.

Spring hanger 8 as support structure
Alternatively, the upper and lower ends of the constant hanger are rotatably connected to the respective blankets 13 by the respective shafts 12.

When the pipe 2 moves to the left and right, relative rotation occurs between the bracket 13 and the spring hanger 8 about the shaft 12 and the movement is permitted, so that an unreasonable action does not occur. When movement in all directions in the horizontal plane is permitted, the shaft 12 may be changed to a universal joint such as a universal joint.

When the pipe 2 moves in the pipe axis direction (vertical direction), the movement is transmitted to the spring hanger 8 via the pipe lug 1, the pipe lug attachment 6, and the blanket 13, and the movement is supported by the spring hanger 8. Then, the movement is restricted, and the pipe 2 is supported by the spring hanger 8.

Even if a change is required from one of these embodiments to another, the same piping lug 1 can be used, so that it is easy to respond to the change request.

As in each of such embodiments, one type of unified pipe lug 1 is used for various supporting structures.
And each constraint direction.

For this reason, the piping lug to be assembled to the support structure depends on the type of the support structure and the restraining direction, etc.
It is not necessary to configure the pipe with a different shape. When mounting the pipe lug on the pipe, the pipe lug mounting position, the pipe circumferential direction position, and the lug shape are selected. When a change occurs in the restraining direction or the like, no change in the piping lug occurs. For this reason, it is possible to avoid a wide variety of pipe lug shapes corresponding to the pipe support structure.

[0080]

According to the first aspect of the present invention, a pipe lug having an octagonal outer edge is used for various support structures and for each constraint direction including a rotation direction about the pipe shaft of the pipe as a rotation axis. In response to the demand, an effect is obtained in which the pipe can be restrained and supported without difficulty as a joint between the sides.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the movement of the pipe can be restricted within the rectangular area specified by the support structure, and the contact between the pipe and the support structure can be prevented. Alternatively, the attachment portion can be lengthened as an octagonal side, and reasonable support is possible.

According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, a bidirectional restraint type restraint which allows axial movement due to thermal displacement of the pipe or the like can be achieved.

According to the fourth aspect of the present invention, in addition to the effect of the second aspect of the present invention, an anchor type restraint for restraining the axial movement of the pipe can be achieved.

According to the fifth aspect of the present invention, in addition to the effect of the first aspect of the present invention, a rod-shaped or telescopic structure can be employed as the supporting structure using an outer octagonal pipe lug.

According to the sixth aspect of the present invention, in addition to the effect of the fifth aspect of the present invention, as the supporting structure, specifically, a bar-shaped restraint, a snubber, a spring type vibration isolator, a spring hanger, a constant hanger, or the like can be used. Any number of support structures can be employed with one type of piping lug.

[Brief description of the drawings]

FIG. 1 is a front view of a pipe lug showing a state in which a pipe lug according to the present invention is attached to a pipe.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of the anchor type pipe restraining support means according to the first embodiment of the present invention.

FIG. 4 is a front view of a two-way restraint type pipe restraining support means according to a second embodiment of the present invention.

FIG. 5 is a front view of a three-way restraint type pipe restraining support means according to a third embodiment of the present invention.

FIG. 6 is an enlarged view of the pipe lug attachment of FIG.

FIG. 7 is a sectional view taken along the line AA of FIG. 5;

FIG. 8 is a front view of a pipe restraining and supporting means using a spring type vibration isolator according to a fourth embodiment of the present invention.

FIG. 9 is a front view of a pipe restraining support device using a spring type vibration isolator according to a fifth embodiment of the present invention.

FIG. 10 is a front view of a pipe restraining and supporting means using a coil spring hanger according to a sixth embodiment of the present invention.

FIG. 11 is a front view of a conventional hanger type pipe restraining support means.

FIG. 12 is a front view of a hanger type pipe restraining support means according to another conventional example.

FIG. 13 is a front view of a conventional two-way restrent type pipe restraining support means.

FIG. 14 is a side view of FIG.

FIG. 15 is a front view of a conventional three-way restrent type pipe restraining support means.

FIG. 16 is a side view of FIG.

17 is a top plan sectional view of the pipe lug attachment shown in FIG.

FIG. 18 is an upper plan view showing an assembled state of a piping lug and a support structure according to another conventional example.

FIG. 19 is an upper plan view showing an assembled state of a piping lug and a support structure according to still another conventional example.

FIG. 20 is a front view of a conventional piping restraint supporting means using a spring type vibration isolator.

FIG. 21 is a front view of another conventional example of a pipe restraining support means using a spring type vibration isolator.

FIG. 22 is a front view of still another conventional example of a pipe restraining and supporting means using a spring type vibration isolator.

FIG. 23 is a front view of a conventional pipe restraining and supporting means using a coil spring hanger.

FIG. 24 is a front view of another conventional pipe restraining and supporting means utilizing a coil spring hanger.

[Explanation of symbols]

1 ... piping lug, 2 ... piping, 3 ... support structure, 5 ... frame,
6 ... Plug lug attachment, 7 ... Spring type vibration isolator, 8 ...
Spring hanger, 12 ... shaft.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Mikio Ishiyama 1-1-1 Uchikanda, Chiyoda-ku, Tokyo Inside Hitachi Plant Construction Co., Ltd. (72) Susumu Shimizu 1-1-1-1 Uchikanda, Chiyoda-ku, Tokyo No. 14 Inside Hitachi Plant Construction Co., Ltd. (56) References JP-A-61-92382 (JP, A) JP-A-54-95018 (JP, U) JP-B-59-5193 (JP, B2)

Claims (6)

(57) [Claims] 1. A pipe support structure comprising a pipe lug attached to a pipe attached to a support structure, wherein the pipe lug is fixed to the entire periphery of the pipe and has a single plate shape having an octagonal outer edge. And a pipe support structure, at least one side of which is a portion for connection with the support structure. 2. The support structure according to claim 1, wherein the support structure is a structure in which a space is formed in a quadrangular shape, and the pipe lug has a side having an outer edge inscribed in the support structure surrounding the space. A pipe support structure, wherein the pipe lug is assembled in the space. 3. The pipe support structure according to claim 2, wherein a lower side of the pipe lug is fixedly mounted on the support structure in the space. 4. A pipe support according to claim 2, wherein said pipe lug is assembled in said space with a vertical side and / or a horizontal side fixed to a support structure. Construction. 5. The pipe rug attachment according to claim 1, wherein a pipe lug attachment is fixedly attached to at least one side of the octagonal pipe lug, and a supporting structure is rotatable on the pipe lug attachment and a fixed structure adjacent to the pipe. A pipe support structure, wherein a support structure and a pipe lug are connected to each other and assembled. 6. A piping support structure according to claim 5, wherein said support structure is one of a bar-shaped restraint, a snubber, a spring type vibration isolator, a spring hanger, and a constant hanger.