JP2015190540A - piping support structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping support structure not requiring any welding work at a piping installation site in which an assembly work is facilitated against the piping at a location showing a narrow mounting space.SOLUTION: A piping support structure S of this invention comprises: a piping support base member 6 arranged to protrude from a fixing work surface (a wall part W) of a piping 1; a piping lug 2 arranged to protrude from a peripheral surface of the piping 1; a lug engaging member (a piping lug restriction plate 3) having a hole (a through-pass hole 7) into which the piping lug 2 is fitted; and fastening elements (U-bolt 4 and nut 5) for assembling an assembly comprising the piping 1 having the piping lug 2 fitted into the hole (through-pass hole 7) and the lug engaging member (the piping lug restriction plate 3) to the piping support base member 6.

Description

  The present invention relates to a piping support structure used for piping laid in various plants such as power generation, chemical, petroleum, and waste disposal.

  Piping support structures for supporting piping lines (piping lines) of various plant facilities are known. This piping support structure is installed at a necessary place in the middle of the extension of the piping line, thereby distributing the load of the piping system and protecting the piping and the equipment connected thereto. Examples of the load applied to the piping system include the weight of the piping itself, the load of piping parts such as valves, the thermal stress load, and the load due to the application of an external force due to an earthquake or the like. Especially for nuclear power plant facilities, the soundness of the piping line must be ensured by assuming an unexpected large external force due to an earthquake or the like.

As a conventional pipe support structure, there are a support body having a quadrangular frame part surrounding the periphery of the pipe, and a pair of pipes that protrude from the two opposite sides of the frame part toward the pipe and are welded to the peripheral surface of the pipe What has a lug is known (for example, refer patent document 1).
Further, as a conventional piping support structure, a projection protruding from both sides of the piping, a pair of linkages arranged to engage with the projection and sandwich the piping from both sides, and the linkages are connected to each other. One having a plurality of connecting rods and a plurality of supporting rods that support the linked linkages is known (for example, see Patent Document 2).

JP 2011-64288 A Japanese Unexamined Patent Publication No. Sho 55-166687

By the way, while it is required that the piping support structure is arranged in a predetermined piping on the piping line so that the soundness of the piping line of the plant equipment is ensured, the piping is routed in a place where the installation space is small. May be forced.
On the other hand, in the pipe support structure of Patent Document 1, since it is necessary to weld two pipe lugs to the pipe at the pipe laying site, construction in a place where the installation space is narrow is extremely complicated.
Moreover, in the piping support structure of patent document 2, since it is necessary to assemble a long support rod etc. around piping, construction in a place with a small installation space becomes extremely complicated.
Therefore, there is a demand for a pipe support structure that does not require welding work at the pipe laying site and that can be easily assembled to the pipe in a small installation space.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a pipe support structure that does not require welding work at a pipe laying site and that can be easily assembled to the pipe in a place where the installation space is small.

  The pipe support structure of the present invention that solves the above problems includes a pipe support base provided so as to protrude from the installation surface of the pipe, a pipe lug provided so as to protrude from the peripheral surface of the pipe, and the pipe A lug engaging member that engages with the lug, and a fastener that integrally assembles the assembly of the pipe and the lug engaging member that are engaged via the pipe lug to the pipe support base. Features.

  According to the present invention, it is possible to provide a pipe support structure that does not require welding work at a pipe laying site and that can be easily assembled to the pipe in a place where the installation space is small.

It is the perspective view of the piping support structure which concerns on embodiment of this invention, (a) is the figure which looked at the piping support structure which supports piping from the front, (b) is the piping support structure which supports piping. It is the figure seen from the rear. It is a right view of the piping support structure of Fig.1 (a). It is a rear view of the piping support structure of Fig.1 (a), and is a figure containing the III-III cross section of FIG. (A) is a right view of the piping support structure which concerns on other embodiment of this invention, The figure corresponding to FIG. 2, (b) is a front view of the piping support structure of (a).

  Next, the piping support structure according to the embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the present embodiment, a description will be given by taking, as an example, a pipe support structure that is arranged (fixed) at a plurality of places in a pipe that is routed in a place (narrow part) where the installation space is narrow. Further, in the present embodiment, the present invention will be specifically described by taking a pipe support structure that supports a pipe on a wall (pipe mounting construction surface) as an example in a pipe line portion in which the pipe extends in the vertical direction. In the following description, the front-rear, left-right, upper-lower directions are based on the front-rear, left-right, upper-lower directions shown in FIG.

  FIG. 1A is a perspective view of a pipe support structure S according to the present embodiment that supports the pipe 1. FIG. 1B is a front view of the pipe support structure S, and FIG. 1B is a pipe support structure that supports the pipe 1. It is the figure which looked at the thing S from the back.

  As shown to Fig.1 (a), although the wall part W which supports the piping 1 using the piping support structure S assumes the concrete wall, this invention is not limited to this, Conventionally, it is applied to all materials made of materials used as walls.

  As shown in FIGS. 1A and 1B, the pipe support structure S includes a pipe lug 2, a pipe lug restraining plate 3, a pipe support base 6, a U bolt 4 and a nut screwed to the pipe lug. 5 is provided. The piping lug restraining plate 3 corresponds to a “lug engaging member” in the claims, and the U bolt 4 and the nut 5 screwed to the U bolt 4 correspond to a “fastener” in the claims. To do.

FIG. 2 is a right side view of the pipe support structure S of FIG. In addition, the wall part W in FIG. 2 is drawn with the virtual line (two-dot chain line) for convenience of drawing.
As shown in FIG. 2, the pipe lug 2 is configured by a protrusion that protrudes outward from the circumferential surface of the pipe 1 in the radial direction of the pipe 1. The pipe lug 2 in the present embodiment is formed of a rectangular plate in plan view, but the present invention is not limited to this, and may be formed of, for example, a cylinder, a polygonal column, an elliptical column, or the like. it can.

  Although not shown, the pipe lug 2 is configured such that the tip protruding from the pipe 1 side is bent in the axial direction of the pipe 1 (upward or downward in FIG. 2), for example, to have an L shape. You can also.

  For example, when the pipe 1 extends in the vertical direction, the L-shaped pipe lug 2 whose tip is bent upward in the vertical direction is used when the pipe lug restraining plate 3 is attached to the pipe lug when the pipe 1 described later is assembled. 2 and can be easily assembled.

  Further, the L-shaped pipe lug 2 whose tip is bent downward in the vertical direction can be hooked on the pipe support base 6 when the pipe 1 to be described later is assembled. Become.

The pipe lug 2 as described above is connected to the pipe 1 in advance by welding or the like before being carried into the construction site where the pipe support structure S of the present embodiment is constructed.
In FIG. 2, reference numeral 3 is a pipe lug restraining plate, reference numeral 4 is a U bolt, reference numeral 5 is a nut, reference numeral 6 is a pipe support base material, and reference numeral 6 a is a pipe support base material 6. An insertion hole for the U-bolt 4 to be formed. Reference numeral 6 b is a base end portion of a pipe support base 6 to be described later embedded in the wall W. Reference numeral 7 is a through-hole formed in the pipe lug restraint plate 3. It is.

FIG. 3 is a rear view of the pipe support structure S of FIG. 1A, and includes a III-III cross section (a cross section of the pipe support base material 6) of FIG. 2.
As shown in FIG. 3, the pipe lug restraining plate 3 is formed of a rectangular plate body in plan view. The pipe lug restraining plate 3 is not limited to this, and may be configured to have a circular shape, another polygonal shape, an elliptical shape, or the like in plan view.

The pipe lug restraining plate 3 is formed with a through hole 7 (hole) into which the pipe lug 2 is inserted. The planar shape of the through hole 7 is formed in accordance with the shape of the cross section of the pipe lug 2. The through hole 7 in the present embodiment is formed in a rectangular shape so that the pipe lug 2 can be inserted in accordance with the cross-sectional shape of the pipe lug 2 made of a rectangular plate. Incidentally, it is desirable to set the size of the through hole 7 to be the same as the size of the cross section of the pipe lug 2 in order to reduce the rattling of the pipe lug 2 inserted through the through hole 7 as much as possible.
Further, as shown in FIG. 1A, an insertion hole 3a through which the U bolt 4 is inserted is formed in the pipe lug restraining plate 3.
In addition, in FIG. 3, the code | symbol 1 is piping, the code | symbol 4 is a U volt | bolt, the code | symbol 5 is a nut, and the code | symbol 6 is a piping support base material.

The piping support base material 6 in this embodiment is formed of a steel plate.
As shown in FIG. 2, the pipe support base 6 is bent upward in the middle of extending so as to protrude from a concrete wall W (pipe mounting construction surface). That is, the pipe support base 6 has an L shape in a side view. By the way, this pipe support base 6 is pre-welded to a reinforcing bar of a not-shown building frame, and the base end portion 6b is embedded when the concrete wall portion W is formed by pouring the concrete, and is firmly attached to the wall portion W. It is what was done.
An insertion hole 6 a through which the U bolt 4 is inserted is formed in the pipe support base 6.

  In addition, although the pipe support base material 6 in this embodiment assumes what was formed with the steel plate as mentioned above, the pipe support base material 6 in this invention is the pipe 1 and the pipe lug restraint plate 3. If it can support integrally, there will be no restriction | limiting in particular in the shape and structure. As will be described later, the pipe support base 6 can be constituted by a stud bolt.

As shown in FIG. 2, the U bolt 4 and the nut 5 integrally fasten the pipe 1, the pipe lug restraining plate 3 (lug engaging member), and the pipe support base 6. In other words, in this embodiment, the assembly of the pipe 1 and the pipe lug restraining plate 3 assembled via the pipe lug 2 is fastened so as to be integrated with the pipe support base 6.
That is, as shown in FIG. 1A, the U bolt 4 is disposed so as to straddle the pipe 1 and is inserted into the insertion hole 6 a of the pipe support base 6 and the insertion hole 3 a of the pipe lug restraining plate 3. Has been. The nut 5 is screwed into a tip protruding from the insertion hole 3 a of the pipe lug restraining plate 3. In addition, the nut 5 in this embodiment has the nut 5 screwed in two with respect to one shaft portion of the U bolt 4.

Next, the effect which the piping support structure S which concerns on this embodiment show | plays is demonstrated.
In the pipe support structure S, the pipe 1 is restrained by the pipe lug 2, the pipe lug 2 is restrained by the pipe lug restraint plate 3, and the pipe lug restraint plate 3 is restrained by the pipe support base 6. Thereby, the pipe support structure S can restrain the movement of the pipe 1 in the axial direction. In addition, the pipe support structure S can restrain the movement of the pipe 1 in two directions orthogonal to the axial direction of the pipe 1 by using the U bolt 4.

  In addition, such a pipe support structure S includes the fitting process of the pipe lug 2 into the through hole 7 of the pipe lug restraint plate 3, the pipe 1 with the U bolt 4 and the nut 5, the pipe lug restraint plate 3, and the pipe support base material. It is constructed by performing six fastening steps. That is, unlike the conventional piping support structure (for example, refer patent document 1), the piping support structure S can be constructed without requiring welding work at the site where the piping 1 is laid.

Moreover, the piping support structure S can be comprised with the piping lug 2, the piping lug restraint plate 3, and the U volt | bolt 4 and the nut 5, and differs from the conventional piping support structure (for example, refer patent document 2). Thus, there is no need to assemble a long support rod or the like.
Therefore, according to the pipe support structure S, the assembling work for the pipe 1 in a place where the installation space is small is facilitated, and as a result, the soundness of the pipe line can be more reliably realized.
Moreover, since the piping support structure S has the one piping lug 2, the number of parts welded can be reduced rather than the conventional piping support structure (for example, refer patent document 1).
Moreover, since the hole of the piping lug restraint plate 3 is the through-hole 7, the length of the piping lug 2 inserted by the depth of a hole is restrict | limited as the hole of the piping lug restraint plate 3 is the through-hole 7. There is nothing.

As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It can implement with a various form.
In the embodiment, the pipe support base 6 and the pipe lug restraint plate 3 are fastened in this order from the pipe 1 side to the wall W side. However, the present invention is the pipe lug restraint plate 3 and the pipe support base. It can also be set as the structure fastened in order of 6.

  Moreover, in the said embodiment, although the hole of the piping lug restraint plate 3 is the through-hole 7, this invention can also be made into the hole of the bottom which does not penetrate. Unlike the through-hole 7 in the said embodiment, since this pipe lug restraint plate 3 has closed the other side of the hole of the pipe lug restraint plate 3, the edge part of the pipe lug 2 does not protrude, and design property Excellent. Further, the back hole can be formed in a hook shape.

In the above embodiment, the pipe lug 2 is fitted into the hole (through hole 7) of the pipe lug restraint plate 3 so that the pipe lug restraint plate 3 and the pipe lug 2 are engaged. There is no restriction | limiting in particular about the aspect of engagement, It can also be set as the structure which provides an engaging part in any one of the piping lug 2 or the piping lug restraining plate 3, and provides an engaged part in any other. An example of such an engaging part is a collar part, and an example of the engaged part is a ring part that receives the collar part.
Such engagement between the pipe lug restraint plate 3 and the pipe lug 2 allows the pipe lug restraint plate 3 to restrain the pipe lug 2 more simply than by welding.

  Moreover, in the said embodiment, although the pipe support base material 6 is provided in the said wall part W by the base end part 6b being embedded in the wall part W of concrete, according to the material of the wall part W, a volt | bolt etc. It can be set as the structure provided in the said wall part W by other joining methods, such as fastening of this, welding.

Moreover, in the said embodiment, although the piping support base material 6 is formed with the steel plate and the fastener is comprised with the U volt | bolt 4 and the nut 5, this invention makes the piping support base material 6 a stud bolt, and uses a fastener. The U-plate straddling the pipe 1 may be configured as follows.
FIG. 4A to be referred to next is a right side view of a pipe support structure according to another embodiment, and is a view corresponding to FIG. 2, and FIG. 4B is a pipe support structure of FIG. It is a front view of a thing.

As shown in FIGS. 4A and 4B, in this pipe support structure S, a plurality of pipe support bases 6 are provided so as to protrude individually from the mounting construction surface (wall portion W) of the pipe 1. A stud bolt, and a fastener 5 is a nut 5 screwed onto the U plate 8 and the stud bolt. Although the stud bolt in this embodiment assumes what is two, this invention can also be made into three or more stud bolts. Moreover, it can also be set as the stud bolt of the multiple crotches branched to several from one base end part.
The leading end of the stud bolt passes through the insertion hole 3 a of the pipe lug restraining plate 3 and the U plate 8 straddling the pipe 1. The nut 5 is screwed to the tip of the stud bolt so that the pipe 1 and the pipe lug restraining plate 3 are integrated with each other via the U plate 8.

  In this piping support structure S, the piping 1 is restrained by the piping lug 2 and the piping lug 2 is restrained by the piping lug restraining plate 3 in the same manner as the piping support structure S (see FIG. 2) according to the embodiment. The pipe lug restraining plate 3 is restrained by the pipe support base 6. Accordingly, the pipe support structure S can reliably restrain the movement of the pipe 1 in the axial direction. In addition, the pipe support structure S can reliably restrain the movement of the pipe 1 in two directions orthogonal to the axial direction of the pipe 1 by using the U plate 8.

Moreover, unlike the conventional piping support structure (for example, refer patent document 1), the piping support structure S can be constructed | assembled, without requiring the welding operation | work of the several components in the laying site of the piping 1. FIG.
Moreover, the piping support structure S can be comprised with the piping lug 2, the piping lug restraint plate 3, and the U plate 8 and the nut 5, and differs from the conventional piping support structure (for example, refer patent document 2). Thus, there is no need to assemble a long support rod or the like.
Therefore, according to the pipe support structure S, the assembling work for the pipe 1 in a place where the installation space is small is facilitated, and as a result, the soundness of the pipe line can be more reliably realized.

Moreover, since the piping support structure S has one piping lug 2, the number of parts to be welded can be reduced as compared with the conventional case.
Moreover, since the fastening part by the nut 5 is arrange | positioned in the front, the piping support structure S is further excellent in the assembly | attachment ease of the piping support structure S. FIG.

1 Piping 2 Piping lug 3 Piping lug restraining plate (lug engaging member)
3a Insertion hole 4 U bolt (fastener)
5 Nut (fastener)
6 Piping support base 6a Insertion hole 6b Base end 7 Through hole (hole)
8 U plate (fastener)
S Piping support structure W Wall (installation surface)

Claims (5)

A pipe support base provided so as to protrude from the installation construction surface of the pipe;
A pipe lug provided to protrude from the peripheral surface of the pipe;
A lug engaging member that engages with the pipe lug;
A fastener that integrally assembles the assembly of the pipe and the lug engaging member that are engaged via the pipe lug to the pipe support base;
A piping support structure comprising: In the piping support structure according to claim 1,
The piping support structure is characterized in that the number of the piping lugs is one. In the piping support structure according to claim 1,
The lug engaging member is a plate,
A pipe support structure, wherein a hole is formed in the lug engaging member, the pipe lug is fitted into the hole, and the pipe lug and the lug engaging member are engaged. In the piping support structure according to claim 1,
The lug engaging member is a plate,
The pipe support base is a plate,
The fastener is a U-bolt;
The U-bolt straddles the pipe, penetrates the lug engagement member and the pipe support base material, and fastens the pipe, the lug engagement member and the pipe support base material integrally. Piping support structure. In the piping support structure according to claim 1,
The lug engaging member is a plate,
The pipe support base material is a stud bolt;
The fastener is a nut screwed to the U plate and the stud bolt;
The stud bolt penetrates the U plate straddling the lug engaging member and the pipe,
The pipe support structure according to claim 1, wherein the nut is screwed and fastened to the stud bolt so that the pipe and the lug engaging member are integrated with each other via the U plate.

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