JP2019152279A - Pipe holding structure - Google Patents

Abstract

To provide a pipe holding structure which can prevent deformation of a pipe itself when the pipe is held in a space in an adit.SOLUTION: A pipe holding structure holds one or more pipes p which are installed in an adit a, extends in a vertical direction, and has an elongated shape. The pipe holding structure includes: a casing pipe 110 which is disposed so as to cover an inner peripheral surface of the adit a and separates an interior from an exterior in a fluid-tight manner; at least one support part 210 which is provided integrally with or separately from the casing pipe 110; a spring member 310 which is connected with the support part 210 and receives a vertical load; and a pipe engagement member connected to a portion of the pipe p which corresponds to the spring member 310 and seated on the spring member 310.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a piping holding structure.

  When installing a pipe in a shaft, for example, after inserting a heat-dissipating pipe into an excavated shaft, a technique for installing the pipe by filling the periphery of the heat-dissipating pipe in the shaft with a filler is known. (For example, refer to Patent Document 1).

  According to such a technique, heat exchange between the ground and the heat collecting and radiating pipe can be promoted by using the filler, and air conditioning can be performed by efficiently using the underground heat.

JP 2017-227362 A

  Here, the conventional technology as described above is usually used in a hot spring resort where the heat source is near the ground surface. For this reason, piping with a comparatively short length is used, and maintenance of piping etc. becomes unnecessary to the extent that the load load to piping by dead weight etc. can be made small, and this can be embed | buried semipermanently.

  On the other hand, in facilities where pipes are extended deep underground, the pipes etc. are lifted to the ground at regular or irregular intervals for the purpose of preventing deformation and breakage of the pipes caused by the above-mentioned load. There is a need.

  However, since the maintenance is large due to the depth of the vertical shaft in which the pipe is installed, a pipe holding structure capable of suppressing deformation of the pipe itself as much as possible is required.

  The present invention has been made based on the circumstances as described above, and an object of the present invention is to hold a piping structure capable of preventing the piping itself from being deformed when holding the piping in a space in a vertical shaft. Is to provide.

Some aspects of the disclosure include:
(1) A pipe holding structure for holding one or more pipes installed in a vertical shaft and extending in a vertical direction,
A casing pipe that is arranged so as to cover the inner peripheral surface of the vertical shaft and isolates the inside and outside in a liquid-tight manner;
At least one support provided integrally or separately from the casing pipe;
A spring member connected to the support and receiving a load in the vertical direction;
A piping holding member connected to a portion of the piping corresponding to the spring member and seated on the spring member,
(2) a spacer member interposed between the support portion and the pipe locking member;
The pipe holding structure according to (1), wherein the spacer member penetrates the pipe in a vertical direction and restricts movement of the pipe in a horizontal direction.
(3) The casing pipe is composed of a multi-stage casing pipe,
The piping holding structure according to (1) or (2), wherein the support portion has a surface formed at a connection portion between two casing pipes adjacent to each other in the vertical direction and opened vertically upward.
(4) A pipe holding structure for holding two or more pipes, wherein the spring member is provided for each pipe, and each of the spring members independently receives a load. The piping holding structure according to claim 1,
(5) The pipe holding structure according to any one of (1) to (4), wherein two or more pipes are held, and at least two of the two or more pipes constitute a U-shaped pipe. And (6) The piping holding structure according to any one of (1) to (5), wherein a space outside the piping in the casing pipe is separated into at least two in the vertical direction.

  In the present specification, the number of pipes means the number of pipes passing through one support portion in the vertical direction. For example, in the case of a single straight pipe, “one pipe”, a single U-shape In the case of pipes, count as “second pipe”.

  ADVANTAGE OF THE INVENTION This invention can provide the holding structure of piping which can prevent that piping itself deform | transforms, when holding piping in the space in a vertical shaft.

It is a schematic longitudinal cross-sectional view which shows the 1st Embodiment of this invention. It is a schematic perspective view which expands and shows the support part vicinity of FIG. FIG. 3 is a schematic cross-sectional view of FIG. 2. It is a schematic perspective view which expands and shows the support part vicinity of the 2nd Embodiment of this invention. FIG. 5 is a schematic side view of FIG. 4. It is a schematic perspective view which expands and shows a part of piping of FIG. It is a schematic sectional drawing which expands and shows the support part vicinity of the 3rd Embodiment of this invention.

  The pipe holding structure is a pipe holding structure for holding one or more pipes installed in the vertical shaft and extending in the vertical direction so as to cover the inner peripheral surface of the vertical shaft. A casing pipe that is arranged and liquid-tightly isolates the inside and the outside, at least one support portion provided integrally or separately from the casing pipe, and a spring member that is connected to the support portion and receives a load in the vertical direction; A pipe locking member connected to a portion of the pipe corresponding to the spring member and seated on the spring member.

  In addition, the piping used for the holding structure of the said piping is a longitudinal-shaped pipe extended in the substantially perpendicular direction as a whole, For example, various piping, such as a straight pipe and a U-shaped piping, is employ | adopted. In this piping, for example, various fluids such as liquid and / or gas are circulated or contained.

  Hereinafter, although the 1st-3rd embodiment of the present invention is described with reference to drawings, the present invention is not limited only to the embodiment described in the drawings.

[First Embodiment]
FIG. 1 is a schematic longitudinal sectional view showing a first embodiment of the present invention. 2 and FIG. 3 are a schematic perspective view and a schematic cross-sectional view showing the vicinity of the support portion in FIG. 1 in an enlarged manner, respectively. As shown in FIGS. 1 to 3, the pipe holding structure is schematically configured by a casing pipe 110, a support portion 210, a spring member 310, and a pipe locking member 410. In FIG. 2, the first casing pipe 111 (110) is not shown for convenience.

  The casing pipe 110 is a member that is disposed so as to cover the inner peripheral surface of the vertical shaft a, and that separates the inside and the outside in a liquid-tight manner. Specifically, the casing pipe 110 is composed of, for example, a plurality of casing pipes having different outer diameters, and the casing pipes 110 whose outer diameters are sequentially reduced from the portion close to the ground surface g toward the deep underground are vertically coaxial. It can form by connecting so that it may be located. In this embodiment, the casing pipe 110 is composed of four stages (multistages).

  As a method of installing the casing pipe 110, for example, a first-stage vertical shaft a1 is formed by excavating vertically from the ground surface g using a drill having a first outer diameter. The first casing pipe 111 is installed so as to cover the inner wall of the vertical shaft a1. Then, using a drill having an outer diameter smaller than the first outer diameter, after drilling further vertically downward through the first casing pipe 111, to form the second stage vertical shaft a2, A second casing pipe 112 (smaller diameter than the first casing pipe 111) is installed so as to cover the inner wall of the second-stage vertical shaft a2, and the lower end portion of the first casing pipe 111 and the second casing pipe are installed. The upper end of 112 is connected by welding or the like. Thereafter, the multi-stage casing pipe 110 can be formed by operating in the same manner and sequentially installing the casing pipes 110 having smaller diameters vertically below.

  The support portion 210 is at least one portion provided as an integral or separate body on the casing pipe 110. The support portion 210 is not particularly limited as long as a spring member 310 (to be described later) can be connected. However, when the casing pipe 110 is composed of a multi-stage casing pipe 110 as shown in FIG. A surface 211 (hereinafter also referred to as “step portion 211”) that is integrally formed with the casing pipe 110 at a connection portion j of two casing pipes (for example, the casing pipes 111 and 112) and that is open vertically upward. It is preferable to configure. In the present embodiment, a plurality (three) of support portions 210 are arranged along the vertical direction.

  As described above, since the support portion 210 is configured by the step portion 211, the spring member 310 can be reliably secured with a simple configuration without providing a fixture or the like for connecting the spring member 310 described later to the casing pipe 110. Can be installed.

  The spring member 310 is a member that is connected to the support portion 210 and receives a load in the vertical direction generated by the pipe p (including fluid in the pipe), the pipe locking member 410, and the like. In the present embodiment, the spring member 310 is fixed on the stepped portion 211 formed at the connection site j of the casing pipe 110.

  As the spring member 310, for example, an elastic body such as a spirally wound wire (coil spring), a leaf spring, or the like can be used. In the present embodiment, a coil spring 311 is employed as the spring member 310.

  The pipe locking member 410 is a member that is connected to a portion corresponding to the spring member 310 of the pipe p and is seated on the spring member 310. As this piping locking member 410, a disk-shaped member, a nut member, etc. are employable, for example. In this embodiment, as shown in FIGS. 2 and 3, a disk-like member 411 is used, and a screw part 411 b on the inner periphery of a hole 411 a drilled in the center of the disk-like member 411 and a pipe p The disk-shaped member 411 and the pipe p are fixed by screwing the threaded portion formed on the outer periphery.

  Next, the effect | action in the holding structure of the said piping is demonstrated. For example, the inside of the pipe p is filled with a fluid, and a vertical load due to gravity is generated in the pipe p containing the fluid. In the present embodiment, as shown in FIG. 1, three support portions 210 are provided, and the load is received by all three spring members 310 via each disk-like member 411. For this reason, the total load of the pipes p and the like is distributed in three. As a result, the vertical load applied to each of the support portions 210 and the vertical applied to each of the pipes p are compared with the case where the total load is received at one place. The load in the direction can be reduced, and deformation of the piping p and the like due to an excessive load can be prevented.

  As described above, since the pipe holding structure has the above-described configuration, when the pipe is held in the space in the vertical shaft a, for example, the vertical load generated by the pipe p or the like is applied to each of the support portions 210. By dispersing, it is possible to prevent the pipe p itself from being deformed due to stress concentration on a specific part of the pipe p. As a result, the frequency of large-scale maintenance such as replacement of the piping p can be reduced.

[Second Embodiment]
FIG. 4 is an enlarged schematic perspective view showing the vicinity of the support portion according to the second embodiment of the present invention. FIG. 5 is a schematic side view of FIG. As shown in FIGS. 4 and 5, the pipe holding structure is roughly constituted by a casing pipe 110, a support part 210, a spring member 310, a pipe locking member 420, and a spacer member 520. ing. The present embodiment is different from the first embodiment in that a pipe locking member 420 and a spacer member 520 are provided. Moreover, this embodiment has illustrated the holding structure of the piping which hold | maintains the some piping p. In addition, since the casing pipe 110, the support part 210, and the spring member 310 are the same as that of 1st Embodiment, the same code | symbol is attached | subjected to the same part and the detailed description is abbreviate | omitted. 4 to 6 do not show the first casing pipe 111 for the sake of convenience.

  The pipe locking member 420 is connected to a portion corresponding to the spring member 310 in each pipe p, and is seated on the spring member 310 via a spacer member 520 described later. As the pipe locking member 420 used in the present embodiment, for example, a nut member 421 or the like can be employed. Such a nut member 421 has, for example, a screw portion screwed on the inner peripheral surface, and the screw member and a screw portion formed on the outer periphery of the pipe are screwed together so that the nut member 421 and the pipe are screwed together. p is fixed.

  The spacer member 520 is a member interposed between the support portion 210 and the pipe locking member 420. The spacer member 520 regulates the movement of the pipe p in the horizontal direction. Specifically, as the spacer member 520, for example, a disk-shaped or annular member is used, and a hole 520a through which the pipe p can penetrate in the vertical direction is formed in this member. The hole 520a can be provided at a desired position in accordance with the number of pipes and the like. For example, when the number of the pipes p is 1, the substantially central portion of the above-mentioned member, and when there are a plurality of pipes, the pipes p are predetermined. It can arrange | position in the site | part which becomes this space | interval.

  Here, the holding structure of the pipe holds two or more pipes p, and at least two of the two or more pipes p can be constituted by U-shaped pipes pu. Specifically, in this embodiment, as shown in FIG. 6, all the pipes p are configured by U-shaped pipes pu, and the U-shaped part pu1 is the lowermost part of the pipe p and the casing pipe 110. It arrange | positions so that it may be located in the deepest part vicinity.

  In this way, at least two of the two or more pipes p are constituted by the U-shaped pipe pu, and the fluid f is returned using the U-shaped pipe pu, for example, a high temperature environment due to geothermal heat. The present invention can be suitably applied to a hot water generation system using a gas, a compound decomposition system using a high temperature and high pressure environment (for example, hydrogen gas production in a supercritical state or a subcritical state), and the like.

  As described above, since the holding structure of the pipe includes the spacer member 520, the pipe p can be prevented from swinging in the horizontal direction. For example, the pipe p is shaken during a rolling earthquake. It can prevent moving and breaking.

[Third Embodiment]
FIG. 7 is an enlarged schematic cross-sectional view showing the vicinity of the support portion according to the third embodiment of the present invention. As shown in FIG. 7, the pipe holding structure is roughly composed of a casing pipe 110, a support part 210, a lid member 630, a spring member 330, a pipe locking member 430, and a spacer member 530. It is configured. The present embodiment is different from the second embodiment in that it includes a spring member 330, a pipe locking member 430, a lid member 630, and a spacer member 530. In addition, in this embodiment, while holding two or more piping p, what used the cover member 630 and the spacer member 530 is illustrated. Moreover, since the casing pipe 110 and the support part 210 are the same as that of 1st Embodiment, the description is used.

  The spring member 330 is provided for each pipe p and independently receives a vertical load generated by the pipe p (including the fluid f in the pipe p), the pipe locking member 430, and the like. Specifically, as the spring member 330, as shown in FIG. 7, for example, an elastic wire (coil spring 331) wound spirally around each pipe p can be employed.

  The pipe locking member 430 is connected to a portion corresponding to the spring member 330 of each pipe p and is seated on the spring member 330. As the piping locking member 430 used in the present embodiment, for example, a piping locking member having the same shape as that exemplified in the second embodiment can be employed.

  The spacer member 530 is a member interposed between the support portion 210 and the pipe locking member 430. The spacer member 530 regulates the movement of the pipe p in the horizontal direction. The spacer member 530 of the present embodiment is disposed between the support portion 210 and the spring member 330. The spacer member 530 has a hole 530a through which the pipe p can penetrate in the vertical direction.

  The lid member 630 is a member that separates the space outside the pipe p in the casing pipe 110 into at least two in the vertical direction. For example, the lid member 630 is formed in a disk shape having a planar shape substantially the same as the inner peripheral shape of the transverse cross section of the casing pipe 110, and a hole 630a through which a pipe can penetrate is formed in a predetermined portion. Yes. For example, the lid member 630 is disposed on the support portion 210, and a space in the casing pipe 110 vertically below the lid member 630 and a space in the casing pipe 110 vertically above the lid member 630 are arranged. Isolate. In the present embodiment, the lid member 630 separates the space S1 vertically above the lid member 630 and the space S2 vertically below the lid member 630 in an airtight and liquid tight state.

  As described above, the space outside the pipe p in the casing pipe 110 using the lid member 630 or the like is separated into at least two in the vertical direction, and thus has, for example, toxic or corrosive properties accumulated deep in the ground. Gas or the like can be prevented from being ejected through the casing pipe 110 to the ground surface.

  As described above, in the holding structure of the pipe, the spring member 330 is provided for each pipe p, and the spring member 330 receives the load of the pipe p or the like independently, whereby the pipe for each pipe p in the vertical direction. Even when there is a tolerance at the position of the locking member 430, this tolerance can be absorbed, and a load in the vertical direction of each pipe p and the like can be reliably received.

  In addition, this invention is not limited to the structure of embodiment mentioned above, is shown by the claim, and intends that all the changes within the meaning and range equivalent to a claim are included. Is done.

  For example, in the above-described first to third embodiments, the pipe holding structure including the multi-stage casing pipe 110 in which a plurality of casing pipes 111 and 112 having different diameters are connected has been described. A pipe holding structure including a pipe (not shown) may be used.

  The pipe p applied to the pipe holding structure may be a seamless pipe or a connection pipe in which a plurality of pipes are connected in series using a joint. When employing the above-described connection pipe, the pipe locking member may be used as a joint.

  In the first to third embodiments described above, the pipe holding structure is described in which the support portion 210 is the step portion 211 formed integrally with the casing pipe 110 at the connection portion j between the casing pipes 110. However, the support portion is formed, for example, in the middle of the casing pipe and other than the step portion 211 such as a convex portion (not shown) provided integrally or separately with the casing pipe protruding from the inside of the casing pipe. The holding structure of piping provided with the support part of this aspect may be sufficient.

  Further, in the second embodiment described above, a pipe holding structure provided with the pipe locking member 420 and the spacer member 520 separately, and in the third embodiment, the spacer member 520 and the lid member 630 are used. Although the pipe holding structure has been described, a pipe holding structure having a configuration in which at least two members among the pipe locking member, the spacer member, and the lid member are used may be used. It may be a piping holding structure provided with a lid member separately.

a, a1, a2 Vertical shaft p Pipe pu U-shaped pipe j Connection part 110, 111, 112 Casing pipe 210 Support part 211 surface (step part)
310, 330 Spring member 410, 420, 430 Piping locking member 520, 530 Spacer member 630 Lid member

Claims (6)

A pipe holding structure that holds one or more pipes that are installed in a vertical shaft and extend in the vertical direction.
A casing pipe that is arranged so as to cover the inner peripheral surface of the vertical shaft and isolates the inside and outside in a liquid-tight manner;
At least one support provided integrally or separately from the casing pipe;
A spring member connected to the support and receiving a load in the vertical direction;
A piping holding structure, comprising: a piping locking member connected to a portion of the piping corresponding to the spring member and seated on the spring member. A spacer member interposed between the support portion and the pipe locking member;
The said spacer member is a holding structure of piping of Claim 1 which the said piping penetrates to a perpendicular direction and controls the movement to the horizontal direction of the said piping. The casing pipe is composed of a multi-stage casing pipe,
The piping holding structure according to claim 1 or 2, wherein the support portion has a surface formed at a connection portion between two casing pipes adjacent to each other in the vertical direction and opened vertically upward.   The pipe holding structure for holding two or more pipes, wherein the spring member is provided for each pipe, and each of the spring members independently receives a load. The piping holding structure described.   The pipe holding structure according to any one of claims 1 to 4, wherein two or more pipes are held, and at least two of the two or more pipes constitute a U-shaped pipe.   The piping holding structure according to any one of claims 1 to 5, wherein a space outside the piping in the casing pipe is separated into at least two in the vertical direction.

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