JP2018168869A - Piping support device - Google Patents

Abstract

To provide a piping support device which restrains piping in a vertical direction in a narrow space in which a support structure surrounding the outside of the piping cannot be installed.SOLUTION: A piping support device 1 is equipped with a pedestal 2; a saddle 3; and a clamp 4. The pedestal 2 is fixed to a structure S under piping P. The saddle 3 is supported on the pedestal 2 so as to relatively move in a horizontal direction in a predetermined range and so as not relative move in a vertical direction, and supports a lower half portion of the piping P at an upper part. The clamp 4 is fixed to the saddle 3 with the piping P interposed between the saddle 3 and the clamp 4, and restrains the piping P in the vertical direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a piping support device that is applied to a piping system such as a power generation facility, restrains the vertical displacement of the piping system due to an earthquake or the like, and allows the displacement in other directions due to thermal expansion within a certain range.

  2. Description of the Related Art Conventionally, a pipe support structure is known in which a lug that restrains a pipe is provided between a support structure surrounding the outer periphery of the pipe and the pipe. In this case, the lug restrains and supports the pipe in its axial direction and in one or both directions orthogonal to the pipe, and allows the pipe to move in the axial direction and rotate around the central axis (for example, Patent Document 1). There is.

Japanese Patent Laid-Open No. 61-180083

For example, when a new support device is added to an existing piping system and installed, the space for installing a support structure surrounding the outer periphery of the piping may not be available depending on the status of the support position. In such a case, the conventional support structure cannot be adopted.
Accordingly, an object of the present invention is to provide a pipe support device that restrains a pipe only in a vertical direction in a narrow space where a support structure surrounding the outer periphery of the pipe cannot be installed.

Hereinafter, the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
In order to solve the above problems, the pipe support device 1 of the present invention includes a pedestal 2, a saddle 3, and a clamp 4. The pedestal 2 is fixed to a structure S such as a floor of a building below the pipe P. The saddle 3 is supported on the pedestal 2 so as to be relatively movable in the horizontal direction within a predetermined range and not to be relatively movable in the vertical direction, and supports the lower half of the pipe P on the upper part. The clamp 4 is fixed on the saddle 3 with the pipe P interposed between the clamp 4 and restrains the pipe P in the vertical direction.

  The pipe support device 1 of the present invention can effectively restrain the pipe P only in the vertical direction in a narrow space where a support structure surrounding the outer periphery of the pipe P cannot be installed.

It is a front view of the piping support device concerning the present invention. It is a side view of the piping support apparatus of FIG. It is an III-III arrow line view in FIG. It is an IV-IV arrow line view in FIG. It is a front view of the piping support apparatus which concerns on other embodiment of this invention. It is a side view of the piping support apparatus of FIG. It is a VII-VII arrow line view in FIG. It is a VIII-VIII arrow line view in FIG.

Embodiments of the present invention will be described with reference to the drawings.
The pipe support device 1 includes a pedestal 2 fixed to the structure S below the pipe P, and is supported on the pedestal 2 so as to be relatively movable in the horizontal direction within a predetermined range and not relatively movable in the vertical direction. A saddle 3 that supports the lower half of the saddle 3, and a clamp 4 that is fixed on the saddle 3 with the pipe P sandwiched between the saddle 3 and that restrains the pipe P in the vertical direction. The base 2 and the saddle 3 are each configured by combining steel plates by welding. The pedestal 2 and the saddle 3 are joined by a connecting bolt 5, and the saddle 3 and the clamp 4 are fastened by a fastening bolt 6.

  The pedestal 2 includes a substrate 7 that is horizontally fixed on the structure S, and a support plate 10 that is supported on the substrate 7 via a web 8 in parallel with the substrate 7. The web 8 stands from the substrate 7 in the direction orthogonal to the axis of the pipe P. The web 8 and the substrate 7 are connected by a plurality of reinforcing ribs 9 orthogonal to the web 8.

  As shown in FIG. 3, the support plate 10 includes a plurality of large insertion holes 10 a that allow the connecting bolts 5 inserted in the vertical direction to pass through in a horizontal direction so as to be relatively movable.

  The saddle 3 includes a slide plate 11 that is slidably overlapped horizontally on the support plate 10, and a lower band plate 13 that is supported on the slide plate 11 via a web 12 and holds the lower half of the pipe P. It comprises. The web 12 stands from the slide plate 11 in the direction orthogonal to the axis of the pipe P. The web 12 and the slide plate 11 are connected by a plurality of reinforcing ribs 14 orthogonal to the web 12.

  As shown in FIG. 4, the slide plate 11 includes a plurality of bolt insertion holes 11 a through which the connection bolts 5 are inserted corresponding to the large insertion holes 10 a. The slide plate 11 and the support plate 10 are coupled by a connecting bolt 5 and a nut inserted through the bolt insertion hole 11a and the large insertion hole 10a.

  The lower band plate 13 includes an arc-shaped holding portion 13a along the lower half portion of the pipe P and horizontal clamping plate portions 13b at both ends thereof.

  The clamp 4 includes an upper band plate 15 that opposes the lower band plate 13 and holds the upper half of the pipe P, and a reinforcing rib 16 that extends along the upper band plate 15.

  The upper band plate 15 includes an arc-shaped holding portion 15a along the upper half portion of the pipe P and horizontal clamping plate portions 15b at both ends thereof.

  The fastening plate portion 13b of the lower band plate 13 and the fastening plate portion 15b of the upper band plate 15 are fastened by fastening bolts 6 and nuts, whereby the pipe P is restrained between the saddle 3 and the clamp 4. Is done.

  The horizontal movement accompanying the thermal expansion of the pipe P is free in the free movement range of the connecting bolt 5 in the large insertion hole 10a, but is restrained by the saddle 3 and the clamp 4 in the vertical direction.

  In other embodiment shown in FIG. 5, the same code | symbol is attached | subjected to the component equivalent to previous embodiment, and description is abbreviate | omitted. In this embodiment, the web 8 of the base 2 is formed with a notch 8a that is positioned at the upper edge of the web 8 and through which the square washer 17 is inserted. The square washer 17 has two bolt holes through which the two connecting bolts 5 arranged in the axial direction of the pipe P are inserted through the web 8, and is disposed along the lower surface of the support plate 10 through the notch 8 a. . The square washer 17 serves as a common washer for the two connecting bolts 5 and the number of items and the number of assembling steps are reduced.

DESCRIPTION OF SYMBOLS 1 Piping support apparatus 2 Base 3 Saddle 4 Clamp 5 Connection bolt 6 Tightening bolt 7 Substrate 8 Web 8a Notch 9 Reinforcement rib 10 Support plate 10a Large insertion hole 11 Slide plate 11a Bolt insertion hole 12 Web 13 Lower band plate 13a Holding part 13b Clamping plate portion 14 Reinforcement rib 15 Upper band plate 15a Holding portion 15b Clamping plate portion 16 Reinforcement rib 17 Square washer

Claims (3)

A pedestal fixed to the structure below the piping;
A saddle that is supported on the pedestal in a horizontal direction within a predetermined range and that is relatively immovable in the vertical direction and that supports the lower half of the pipe on the upper part,
A pipe support device comprising: a clamp that is fixed on a saddle with the pipe sandwiched between the saddle and restrains the pipe in a vertical direction. The pedestal and the saddle are connected by a connecting bolt,
The pedestal comprises a substrate fixed horizontally on the structure, and a support plate supported in parallel on the substrate,
The support plate includes a plurality of large insertion holes through which the connection bolts inserted in the vertical direction pass through in a horizontal direction so as to be movable in a predetermined range.
The saddle includes a slide plate that slidably overlaps the support plate,
The slide plate includes a plurality of bolt insertion holes for inserting the connection bolts corresponding to the large insertion holes,
The pipe support device according to claim 1, wherein the upper band plate includes an arc-shaped holding portion along an upper half portion of the pipe and horizontal clamping plate portions at both ends thereof. Between the substrate of the pedestal and the support plate is connected by a web in a direction orthogonal to the axis of the pipe,
The web has a notch that penetrates the web at the upper edge in contact with the support plate,
A square washer having two bolt holes corresponding to the two large insertion holes adjacent to both sides of the web sandwiched between the webs is inserted along the lower surface of the support plate through the notch of the web. The piping support device according to claim 2.

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