JP6125879B2 - Piping support structure - Google Patents

Description

  The present invention relates to a pipe support structure that supports a pipe with a support structure (support), and more particularly to a pipe support structure provided with a mechanism for finely adjusting a gap amount.

  In various plants and the like, a pipe support structure for attaching a pipe for transferring an internal fluid to an appropriate position is employed. Various types of pipe support structures have been proposed and put into practical use. For example, when fixing an object to be attached such as a pipe, a bar (hereinafter simply referred to as a pipe) to a support such as a structure, a U-bolt is generally used. Used.

  On the other hand, depending on the plant, there is a case where it is required to support the piping through a gap instead of fixedly supporting the piping. For example, in piping used under a high temperature environment, thermal expansion of the piping occurs. Therefore, when fixing to a structure or the like, it is necessary to provide a slight gap without completely suppressing the piping. As a method for realizing such a gap support, in Patent Document 1, a thin plate (liner) is inserted into a gap of a support structure and welded to adjust the gap amount.

  In Patent Document 2, as a method of adjusting the gap amount, the level adjusting liner is fitted into a liner mounting seat on a flat plate and is fixed without using a firearm.

Japanese Patent Laid-Open No. 10-213118 Japanese Patent Laid-Open No. 11-190466

  The patent document describes a method for adjusting a gap between a pipe and a support structure. However, the method of Patent Document 1 in which a thin plate is inserted between the support structure and the pipe and welded to adjust the gap amount is a large-scale operation using a welding machine or a cutting machine, and it is difficult to cope with a design change. It is. Further, in the method of adjusting the gap amount by fitting without using a firearm, it is necessary to prepare a plurality of adjustment liners having different thicknesses in order to adjust the gap amount.

  Accordingly, an object of the present invention is to provide a pipe support device having a gap amount fine adjustment mechanism that facilitates adjustment of the gap amount without using a firearm.

  In order to solve the above problems, in the present invention, a pipe support structure including a plurality of support members for arranging a pipe in a frame formed in a frame shape and supporting the pipe with a gap in the frame, The support member is composed of bolts, one end of the bolt is fixed to the frame, the nut holding plate on the other end side of the bolt faces the piping side, and the bolt and nut holding plate are attached to be extendable with a lock nut It is characterized by being.

According to the present invention, by adjusting the bolt, it is possible to easily obtain the necessary gap amount between the pipe and the frame, and it is possible to reduce the work man-hours by on-site welding for fixing the adjustment liner and reduction of the work amount. it can.

The figure which shows the structural example of the piping support structure provided with the gap | interval fine adjustment mechanism. The figure which shows an example of a supporting member provided with the gap | interval fine adjustment mechanism which adjusts the gap | interval quantity. The figure which shows the positional relationship when a bolt is tightened and it loosens. The figure which showed the fixing method of the supporting member by a mounting bracket.

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

  In the present embodiment, an example of a fine adjustment mechanism that easily adjusts the gap amount will be described.

  FIG. 2 is a diagram illustrating a configuration example of a pipe support structure including the gap amount fine adjustment mechanism of the present embodiment. Here, the frame 8 is configured in a frame shape such as a gate shape. Specifically, for example, a square steel material is used to assemble the frame 8 including the left and right frame portions 8R and 8L and the upper and lower frame portions 8O and 8U. Inside the gate-shaped frame 8, the pipe 7 is temporarily positioned by a lift or the like (not shown). Further, the support member 6 is attached from each frame portion 8R, 8L, 8O, 8U of the portal frame 8 toward the internal piping direction. The temporarily positioned pipe 7 is finally positioned by the frame 8 and the support member 6. Therefore, the support member 6 constitutes a gap amount fine adjustment mechanism. After that, the lift is removed and the installation is completed.

  In FIG. 2, the frame 8 is fixed to a fixed point 101. The pipe 7 is seated on the support member 6U attached upward from the lower frame portion 8U. However, the other left and right and upper support members 6R, 6L, and 60 are adjusted so as to obtain a predetermined gap amount t1 by adjusting the length L1 of the support member 6, respectively.

  FIG. 1 shows an example of a support member having a gap amount fine adjustment mechanism that adjusts the length so as to obtain a predetermined gap amount t1. In FIG. 1, the support member 6 includes a thin plate 1, a bolt 20, a lock nut (female) 30, a lock nut (male) 31, a nut holding plate 4, and a magnet 5 in order from the pipe 7 side.

  Each part which comprises the supporting member 6 is connected, comprised, or functions as follows. First, lock nuts 30 and 31 are used to prevent vibration during operation and nut loosening due to an earthquake. The nut holding plate 4 has a circular hole at the center thereof, and a strong magnet 5 having a circular hole at the center is attached to the base plate of the support member 6. Further, the nut holding plate 4 has a lock nut (male) 31 welded to the upper part thereof, and a bolt 20 is screwed there, and the bolt length is adjusted by the lock nut (female) 30. The thin plate 1 is welded at the position of the welding point 100 in order to increase the contact area on the top 20A of the bolt 20 so that the stress is not concentrated on one point.

  As is apparent from this configuration, the support member 6 is generally integrated with the bolt 20, a lock nut (female) 30 that is screwed with the bolt, and the nut holding plate 4, and is screwed with the bolt. The lock nut (male) 31 is configured such that a bolt enters a circular hole in the center of the nut holding plate 4.

  FIG. 3 is a diagram showing a positional relationship when the bolt 20 is tightened and loosened. In the state when the bolt 20 on the right in FIG. 3 is tightened, the tip of the bolt 20 has entered deeply into the circular hole in the center of the nut holding plate 4. However, the front end of the bolt 20 is positioned so as not to protrude further from the circular hole in the center of the nut holding plate 4. In the state when the bolt 20 on the left in FIG. 3 is loosened, the tip of the bolt 20 has entered the circular hole in the center of the nut holding plate 4 shallowly. As shown in FIG. 3 comparing the two states, the distance from the portion of the magnet 5 to the thin plate 1 is changed by moving the bolt 20 up and down. Thereby, a smooth length adjustment for fine adjustment of the gap amount is possible.

  When using the support member 6 of FIG. 2, the magnet 5 side of the support member 6 (right of FIG. 3) with the bolts 20 tightened is connected to the pipes 7 of the frame portions 8R, 8L, 8O, 8U constituting the frame 8. Install on the side. Next, the bolt 20 is loosened and lengthened in the direction of increasing the length, and the gap t1 between the support member 6 and the pipe 7 is adjusted.

  According to the present invention, it is easy to obtain a necessary gap by adjusting the bolt even if the position of the pipe is slightly shifted due to the influence of an earthquake or construction displacement after installation of the support structure. In addition, since no firearms are used, the number of man-hours at the site can be reduced.

  Another embodiment of the present invention will be described with reference to FIG. In this embodiment, the mounting bracket 12 is used for mounting to the frame 8 instead of the mounting to the frame 8 by the magnet of the first embodiment shown in FIG. 2 (fixing method without using a firearm).

  In FIG. 4, in the mounting bracket 12 for attaching the support member 6 to the frame 8, the extension member 4 </ b> A in which the function of the nut restraining plate 4 extends in the longitudinal direction, and the frame support member for supporting the frame 8. 4B, and the bolt 21 that connects the extending member 4A and the frame support member 4B are realized.

  Of these members, screw holes 21 are screwed into both ends of the extending member 4A, and a flat washer 11 and a spring washer 10 are attached to the tip as a loosening prevention to connect the extending member 4A and the frame support member 4B. Sufficient tightening is obtained by managing the torque of the bolt 21 that connects the stretching member 4A and the frame support member 4B. In addition, description is abbreviate | omitted about the part which has the already demonstrated same function among the supporting members 6 of FIG. According to the present invention, since no firearm is used, the number of man-hours at the site can be reduced.

  In addition, this invention is not limited to above-mentioned Example 1 and Example 2, and various application examples are included.

  For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

1: Thin plate 20: Bolt 21: Bolt 30: Lock nut (female)
31: Lock nut (male)
4: Nut holding plate 5: Fixing magnet 6: Support member 7: Piping 8: Frame 9: Nut 10: Spring washer 11: Plain washer 12: Mounting bracket 100: Welding point 101: Fixing point t1: Clearance L1: Support member length

Claims (6)

A pipe support structure provided with a plurality of support members for arranging pipes in a frame formed in a frame shape and supporting the pipes with gaps in the frame,
The support member includes a bolt, a first lock nut that is screwed with the bolt, and a second lock nut that is integral with the nut holding plate and screwed with the bolt.
The nut holding plate side that is one side of the bolt is fixed to the frame, the other side of the bolt faces the piping side, and the gap between the bolt and the nut holding plate is the first lock nut. A piping support structure, wherein the piping support structure is attached to be extendable and contractible by a second lock nut. In the piping support structure according to claim 1,
The nut suppressed plate, the length of its central portion has a circular hole, and threadedly engaged with the bolt by welding the second locking nut thereon, said bolt in said first locking nut A piping support structure characterized by adjusting the pressure. In the piping support structure according to claim 1 or 2,
A pipe support structure, wherein the support member is provided with a magnet at an end portion on the nut holding plate side which is one side of the bolt, and the support member is fixed to the frame via the magnet. . In the piping support structure according to any one of claims 1 to 3,
The pipe support structure , wherein the support member includes a thin plate on the pipe side surface on the other side of the bolt . In the piping support structure according to any one of claims 1 to 4,
A piping support structure characterized in that fixing is possible by using a magnet on the bottom surface of the support member . In the piping support structure according to claim 1 or 2,
The pipe support structure, wherein the nut holding plate side, which is one side of the bolt, is fixed to the frame by a mounting bracket .

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