JP6689647B2 - Tubular body support unit - Google Patents

Description

  The present invention relates to a tubular body support unit for supporting a plurality of tubular bodies located inside a main pipe.

  Wastewater flowing out from facilities such as factories is discharged to a discharge place such as a treatment plant through a main pipe such as a sewer pipe. In recent years, as a technique for reusing energy discharged from facilities and the like, a technique for transferring the amount of heat of wastewater to another medium has been developed. When the amount of heat contained in the wastewater is transferred, for example, a plurality of tubular bodies are arranged inside the main pipe, and a medium for receiving the amount of heat is flown into each tubular body (see, for example, Patent Document 1).

JP, 2005-218984, A

By the way, each tubular body located inside the main pipe is pressed by the drainage flowing inside the main pipe, and moves in various directions such as the direction in which the drainage flows and the direction based on the shape of the tubular body. Since the displacement of the tubular body due to such pressing lowers the efficiency of heat transfer, and thus the efficiency of energy reuse, in the above-mentioned technique, the position of each tubular body is displaced inside the main pipe. Technology that suppresses this is desired.
An object of the present invention is to provide a tubular body supporting unit capable of suppressing displacement of the tubular body inside the main pipe.

  A tubular body support unit for solving the above-mentioned problems is a tubular body support unit that supports a plurality of tubular bodies located inside a main pipe inside the main pipe, and heat exchange with a medium flowing through the main pipe. Is a tubular body support unit for aligning the extending directions of the plurality of tubular bodies for flowing another medium. The plurality of tubular bodies include a first tubular body group composed of a plurality of tubular bodies and a second tubular body group composed of a plurality of tubular bodies different from the first tubular body group, and the tubular body The body support unit includes a second support body that supports the second tubular body group, and a first support body that supports a portion of the first tubular body group and the second tubular body group.

  According to the tubular body support unit, the first tubular body group and the second tubular body group are separately pressed from the medium flowing inside the main pipe. At this time, the force received by the first tubular body group is dispersed through the first support body to the second tubular body group, and the force received by the second tubular body group is distributed through the first support body to the first tubular body group. Spread. Further, the direction of the force received by the first tubular body group and the direction of the force received by the second tubular body group are difficult to completely coincide with each other, and may cancel each other out. As a result, it is possible to suppress the displacement of the position of the first tubular body group due to the force applied to the first tubular body group and the displacement of the position of the second tubular body group due to the force applied to the second tubular body group. Become.

In the tubular body support unit, the tubular body support unit may include a fitting portion that fits into a recess on the inner surface of the main pipe.
According to the tubular body support unit described above, the fitting portion of the tubular body support unit fits into the recess on the inner surface of the main pipe, so that the displacement of the tubular body support unit with respect to the main pipe is suppressed. Further, as described above, since the positional displacement between the first support body and the second support body is suppressed by the cooperation between the first support body and the second support body, the load applied to the fitting portion in order to suppress the positional displacement of the tubular body support unit is also reduced. It can also be mitigated.

  In the tubular body support unit, the second tubular body group includes a boundary tubular body that is a tubular body adjacent to the first tubular body group among a plurality of tubular bodies, and the first support body is the first tubular body. One tubular body group and the boundary tubular body may be supported.

  According to the tubular body support unit, the first tubular body group supported by the first support body is easily displaced as a group of tubular bodies, and the second tubular body group supported by the second support body is also formed. , It is easy to displace as a group of tubular bodies. At this time, among the sets of tubular bodies adjacent to each other, the set having a large displacement between the tubular bodies is the first tubular body group supported by the first support body and the second tubular body supported by the second support body. It is a set that straddles the tubular body group. According to the above configuration, both the first support body and the second support body support the boundary tubular body common to them, so that the displacement in the group straddling the first tubular body group and the second tubular body group is large. It is also possible to suppress appropriately.

In the tubular body support unit, the position of the first support and the position of the second support may be different from each other in the extending direction of the tubular body.
According to the tubular body support unit, since the position of the first support body and the position of the second support body are different from each other in the extending direction of the tubular body, they are common to the first support body and the second support body. These facilitate the support of the tubular body.

In the tubular body support unit, the first support body includes a plurality of support portions for supporting the tubular body one by one, and the second support body for supporting the tubular body one by one. The number of support portions provided with a plurality of support portions and provided with the first support body may be equal to the number of support portions provided with the second support body.
According to the tubular body support unit, the same structure can be adopted for the first support body and the second support body.

  According to the present invention, it is possible to suppress the displacement of the position of the tubular body inside the main pipe.

The top view which shows the planar structure in one Embodiment which materialized the tubular body support unit of this invention with the cross-section structure of the main pipe. The block diagram which shows the positional relationship of the support body with which the tubular body support unit in 1 embodiment is equipped, and the tubular body group which it supports. The block diagram which shows the positional relationship of each support body and the tubular body group which it supports in the tubular body support unit of a modification. The block diagram which shows the positional relationship of each support body and the tubular body group which it supports in the tubular body support unit of a modification. The block diagram which shows the positional relationship of each support body and the tubular body group which it supports in the tubular body support unit of a modification. The block diagram which shows the structure of the support body holding part in the tubular body support unit of a modification.

A tubular body supporting unit in one embodiment will be described with reference to FIGS. 1 and 2.
As shown in FIG. 1, the main pipe 10 is composed of a first main pipe 10A having a circular tubular shape and a second main pipe 10B having a circular tubular shape. The second end portion 10B1 which is an end portion in the extending direction of the second main pipe 10B is expanded in diameter toward the first main pipe 10A, and is the end portion in the extending direction of the first main pipe 10A. The one end 10A1 is inserted into the second end 10B1 of the second main pipe 10B. Between the first end portion 10A1 and the second end portion 10B1, a gap 10S that is open in the extending direction of the main pipe is formed almost entirely in the circumferential direction of the main pipe 10.

  The support holder 11 is fitted in the gap 10S between the first main pipe 10A and the second main pipe 10B. The gap 10S between the end surface of the first end portion 10A1 and the step surface of the second end portion 10B1 is a dent on the inner surface of the main pipe 10, and is formed almost entirely in the circumferential direction of the main pipe 10. The support holder 11 is an annular body that extends along the circumferential direction of the main pipe 10, and includes a fitting portion 11A that fits into a gap 10S that is a recess on the inner peripheral surface of the main pipe 10. By fitting the fitting portion 11A into the gap 10S of the main pipe 10, the displacement along the extending direction of the main pipe 10 is suppressed in the support holder 11.

  Inside the main pipe 10, a plurality of tubular bodies 12 extending along the extending direction of the main pipe 10 are positioned so as to be parallel to each other. In the tubular bodies 12 adjacent to each other, the distal end portion of one tubular body 12 is connected to the distal end portion of the other tubular body 12 by a connecting member 13. Further, in the tubular bodies 12 adjacent to each other, the base end portion of one tubular body 12 is connected to the base end portion of the other tubular body 12 by the connecting member 13. Each connecting member 13 is a bent pipe that connects the objects to which it is connected to each other. In this way, the tubular bodies 12 adjacent to each other are connected to the connecting member 13, so that the tubular body group composed of the plurality of tubular bodies 12 functions as a single channel through which the medium flows.

  The direction in which the tubular bodies 12 are arranged is the arrangement direction D of the tubular bodies 12. Of all the tubular bodies, the proximal end portion of the tubular body 12 located at one end in the arrangement direction D is connected to the introduction passage 14 extending to the outside of the main pipe 10. Of all the tubular bodies 12, the distal end portion of the tubular body 12 located at the other end in the arrangement direction D is connected to the lead-out pump P located outside the main pipe 10. The introduction passage 14 introduces the medium into the tubular body 12 to which it is connected. The discharge pump P discharges the medium from the tubular body 12 to which it is connected. Then, the medium introduced into the introduction passage 14 passes through the tubular body group functioning as one passage, and during this time, the amount of heat is obtained from the medium flowing through the main pipe 10 and is led out by the lead-out pump P.

  The plurality of tubular bodies 12 located inside the main pipe 10 are supported by the plurality of support bodies 20 located inside the main pipe 10. The plurality of supports 20 are positioned on the support holder 11 via a fastening structure or a fitting structure between the support 20 and the support holder 11. The tubular body support unit is composed of the plurality of supports 20 and the support holder 11 described above.

  Hereinafter, the relationship between each support 20 and the position of the tubular body 12 supported by each support 20 will be described with reference to FIG. Note that, in FIG. 2, for the sake of convenience of explaining the relationship between each support body 20 and the position of the tubular body 12 supported by the support body 20, the gap between the tubular bodies 12 adjacent to each other is exaggerated in the description and is also adjacent to each other. The magnitude | size of the difference of the space | interval in the tubular body 12 which fits is changed, and is shown in a model.

  As shown in FIG. 2, the plurality of tubular bodies 12 includes a first tubular body group GA including a plurality of first tubular bodies 12A and a second tubular body group GB including a plurality of second tubular bodies 12B. And a third tubular body group GC including a plurality of third tubular bodies 12C. Each of the first tubular body group GA, the second tubular body group GB, and the third tubular body group GC is a set of tubular bodies 12 continuous in the arrangement direction D of the tubular bodies 12.

  The plurality of supports 20 include a first support 20A that supports the first tubular body group GA, a second support 20B that supports the second tubular body group GB, and a third support 20B that supports the third tubular body group GC. It is composed of a support 20C. The second tubular body group GB includes a boundary tubular body 12BA (a tubular body 12 with dots in FIG. 2) which is a second tubular body 12B adjacent to the first tubular body group GA among the plurality of tubular bodies 12. . The third tubular body group GC includes a boundary tubular body 12CB (dotted tubular body 12 in FIG. 2) which is a third tubular body 12C adjacent to the second tubular body group GB among the plurality of tubular bodies 12. .

  The first support 20A supports the boundary tubular body 12BA in addition to the first tubular body group GA, and the second support 20B supports the boundary tubular body 12CB in addition to the second tubular body group GB. To do. In other words, the boundary tubular body 12BA is supported by the first support body 20A and the second support body 20B, and the boundary tubular body 12CB is supported by the second support body 20B and the third support body 20C.

  Here, the first tubular body group GA and the second tubular body group GB are separately pressed by the medium flowing inside the main pipe 10. The force received by the first tubular body group GA is dispersed to the second tubular body group GB through the first support body 20A, and the force received by the second tubular body group GB is transferred through the first support body 20A as the first force. Disperse in the tubular body group GA. At this time, the direction of the force received by the first tubular body group GA and the direction of the force received by the second tubular body group GB are difficult to completely coincide with each other and may cancel each other out. As a result, it is possible to prevent the position of the first tubular body group GA from being displaced due to the force applied to the first tubular body group GA, and to prevent the position of the second tubular body group GB from being displaced due to the force received by the second tubular body group GB. It becomes possible.

  Similarly, the second tubular body group GB and the third tubular body group GC are separately pressed from the medium flowing inside the main pipe 10. The force received by the second tubular body group GB is distributed to the third tubular body group GC through the second support body 20B, and the force received by the third tubular body group GC is transmitted through the second support body 20B to the second support body 20B. It is dispersed in the tubular body group GB. Also here, the direction of the force received by the second tubular body group GB and the direction of the force received by the third tubular body group GC are difficult to completely match, and may cancel each other out. As a result, it is possible to prevent the position of the second tubular body group GB from being displaced due to the force received by the second tubular body group GB and the position of the third tubular body group GC from being displaced due to the force received by the third tubular body group GC. It becomes possible.

  Further, the first tubular body group GA supported by the first support body 20A is easily displaced as a group of tubular bodies 12. Further, the second tubular body group GB supported by the second support body 20B is also easily displaced as a group of tubular bodies 12. In addition, the third tubular body group GC supported by the third support body 20C is also easily displaced as a group of tubular bodies 12. Therefore, among the sets of two tubular bodies 12 that are adjacent to each other, the set in which the relative displacement between the tubular bodies 12 is large is the set that straddles the first tubular body group GA and the second tubular body group GB. Yes, it is a set that straddles the second tubular body group GB and the third tubular body group GC. In this respect, a set that straddles the first tubular body group GA and the second tubular body group GB is supported by the first support body 20A, and a straddle that straddles the second tubular body group GB and the third tubular body group GC. Are supported by the second support 20B. Therefore, the relative displacement in the set straddling the first tubular body group GA and the second tubular body group GB, and the relative displacement in the set straddling the second tubular body group GB and the third tubular body group GC It also becomes possible to suitably suppress the relative displacement.

  In addition, the structure which the support part for supporting the tubular body 12 one by one in each support body 20 may be, for example, a fitting groove into which the tubular body 12 is fitted, or in which the tubular body 12 is placed. It may be a gap groove. Further, the structure of the support portion for supporting the tubular bodies 12 one by one may be an insertion hole into which the tubular bodies 12 are inserted, or a structure in which the tubular bodies 12 are fastened to the main body of the support body 20. It may be.

  The position of the first support 20A and the position of the second support 20B are different from each other in the extending direction of the boundary tubular body 12BA. Therefore, physical interference between the first support body 20A and the second support body 20B is suppressed, and the boundary tubular body 12BA common to the first support body 20A and the second support body 20B can be supported by these. It will be easy. Further, in the extending direction of the boundary tubular body 12BA, the position of the second support 20B and the position of the third support 20C are different from each other. Therefore, physical interference between the second support body 20B and the third support body 20C is suppressed, and the boundary tubular body 12CB common to the second support body 20B and the third support body 20C can be supported by these. It will also be easy.

As described above, according to the above embodiment, the effects listed below can be obtained.
(1) It is possible to prevent the tubular body groups GA, GB, and GC from being displaced by being pressed by the medium.
(2) Since the fitting portion 11A of the support body holder 11 is fitted into the recess in the inner surface of the main pipe 10, the positional displacement of the tubular body support unit with respect to the main pipe 10 is suppressed, so that the position of each tubular body 12 can be adjusted. The deviation can be suppressed with higher accuracy.

(3) It is possible to suitably suppress the displacement within the set that straddles the tubular body groups GA, GB, and GC among the sets of tubular bodies 12 that are adjacent to each other.
(4) It is also easy to support the boundary tubular body 12BA by each of the supports 20A and 20B. In addition, it is easy to support the boundary tubular body 12CB by the supports 20B and 20C.

  (5) Since all the tubular bodies 12 are divided into a plurality of tubular body groups GA, GB, GC to be supported, it is possible to support all the tubular bodies 12 according to the shape and curvature of the main pipe 10. is there.

The above embodiment can be modified and implemented as follows.
[Support]
The plurality of supports 20 included in the tubular body support unit may have different sizes. For example, as shown in FIG. 3, in the arrangement direction D of the tubular bodies 12, the third support body 20C may be shorter than the second support body 20B and the first support body 20A. At this time, the length of the third support body 20C in the arrangement direction D of the tubular bodies 12 is preferably substantially equal to the length of the third tubular body group GC. With such a length of the third support 20C, it is possible to prevent the flow of the medium flowing through the main pipe 10 from being obstructed by the third support 20C.

  Further, as shown in FIG. 3, the length of the second support 20B in the arrangement direction D of the tubular bodies 12 is such that the end of the second support 20B has a first tubular body group GA and a third tubular body group. It may be of a size that reaches both the GC and the GC. At this time, the first tubular body group GA is the boundary tubular body 12AB (the tubular body 12 with dots in FIG. 3) which is the tubular body 12 adjacent to the second tubular body group GB in the first tubular body group GA. including. Each of the boundary tubular bodies 12AB and 12BA is supported by both the first support body 20A and the second support body 20B as long as the length of the second support body 20B described above is satisfied. Therefore, it is possible to further suppress the displacement of each tubular body group GA, GB from being pressed by the medium.

  The position of the support body 20 is not limited to the position between the inner surface of the main pipe 10 and the tubular body 12, and may be the center side of the main pipe 10 with respect to the tubular body 12. At this time, the structure of the support portion for supporting the tubular bodies 12 one by one in the support body 20 is, for example, a fitting groove into which the tubular body 12 is fitted.

  Further, as shown in FIG. 4, a first support body 20A located between the inner surface of the main pipe 10 and the tubular body 12, and a second support body located on the center side of the main pipe 10 with respect to the tubular body 12. 20B may be positioned so as to overlap with each other when viewed from the center of the main pipe 10, and one boundary tubular body 12BA may be sandwiched between the first support body 20A and the second support body 20B. Similarly, a third support body 20C located between the inner surface of the main pipe 10 and the tubular body 12 and a second support body 20B located closer to the center of the main pipe 10 with respect to the tubular body 12 are the main pipes. One boundary tubular body 12CB, which is positioned so as to overlap with each other when viewed from the center of 10, may be sandwiched between the third support body 20C and the second support body 20B. With such an arrangement of the support body 20, the tubular body 12 is provided both in the direction from the inner surface of the main pipe 10 to the center of the main pipe 10 and in the direction from the center of the main pipe 10 to the inner surface of the main pipe 10. Displacement is suppressed.

  The number of supports 20 included in the tubular body support unit may be two, or may be four or more. When the number of the support bodies 20 is four or more, the arrangement of each support body 20 is such that, for example, as shown in FIG. It is preferable that the support 20 is spread so as to be filled. Further, it is preferable that the supports 20 be spread in the arrangement direction D of the tubular bodies 12. With such an arrangement of the supports 20, it is possible to prevent foreign matter flowing in the main pipe 10 from entering the gap between the supports 20 adjacent to each other.

[Support holder]
-As shown in FIG. 6, the support holder 11 may include a pressing structure for pressing the holder main body 11T of the support holder 11 toward the inner surface of the main pipe 10. For example, the holder main body 11T having an annular shape includes a first holder main body 111 having a semi-annular shape and a second holder main body 112 having a semi-annular shape, and an end portion of the first holder main body 111. A pressing member 113 that presses the first holder main body 111 and the second holder main body 112 in a direction of widening the gap is positioned in a gap between the end of the second holder main body 112 and the second holder main body 112. The pressing member 113 is located closer to the inner surface of the main pipe 10 than the tubular body 12, and is rotated about its extending direction (vertical direction in the drawing) as a rotation axis to rotate the first holding member main body 111 and the second holding member. The first holder main body 111 and the second holder main body 112 are pressed in a direction of widening the gap between the main holder 112 and the main body 112. The pressing member 113 is configured by, for example, a bolt and a nut, and the force of the pressing member 113 for expanding the gap is converted into the force for pressing the holder main body 11T against the inner surface of the main pipe 10.

  Therefore, it is possible to prevent the position of the support holder 11 from being displaced with respect to the main pipe 10. In addition, since the pressing member 113 is located closer to the inner surface of the main pipe 10 than the tubular body 12, compared with the configuration in which the pressing member 113 is located near the center of the main pipe 10, the medium flowing inside the main pipe 10 is It is also possible to prevent the flow from being obstructed by the pressing member 113.

  The support 20 itself may have a function of fixing the support 20 to the main pipe 10. For example, the support body 20 may include the fitting portion included in the tubular body support unit, and the support body holder 11 may be omitted from the tubular body support unit. With such a configuration of the support body 20, it is possible to reduce the number of members constituting the tubular body support unit.

[Tubular body]
The tubular body 12 supported by the first support body 20A and the second support body 20B may be a tubular body 12 other than the boundary tubular body 12BA in the second tubular body group GB. The tubular body 12 supported by the second support body 20B and the third support body 20C may be a tubular body 12 other than the boundary tubular body 12BC in the third tubular body group GC. In short, the first support body 20A may be configured to support a part of the first tubular body group GA and the second tubular body group GB. Further, the second support body 20B may be configured to support a part of the second tubular body group GB and the third tubular body group GC. Either one of the first support 20A and the second support 20B may be omitted.

  The plurality of tubular bodies 12 are not limited to being connected by the connecting member 13, but one tubular body 12 is connected to each of the introduction passage 14 and the discharge pump P, and each tubular body 12 is configured as an individual pipe. Good.

  The shape of the tubular body 12 is not limited to a straight tube, and may be a wavy line extending in the extending direction of the main tube 10 or a spiral shape extending along the inner peripheral surface of the main tube 10. May be Further, the plurality of tubular bodies 12 may be a part of one tubular body, and in short, the plurality of tubular bodies 12 are tubes for flowing another medium that exchanges heat with a medium flowing through the main pipe. The tubular body support unit may be a body, and the tubular body support units are aligned in the extending direction of each of the plurality of tubular bodies.

  D ... Array direction, P ... Delivery pump, GA ... First tubular body group, GB ... Second tubular body group, GC ... Third tubular body group, 10 ... Main pipe, 10A ... First main pipe, 10A1 ... First pipe End portion, 10B ... Second main pipe, 10B1 ... Second end portion, 10S ... Gap, 11 ... Support holder, 11A ... Fitting portion, 12 ... Tubular body, 12A ... First tubular body, 12AB, 12BA, 12CB ... Boundary tubular body, 13 ... Coupling member, 14 ... Introduction passage, 20 ... Support, 20A ... First support, 20B ... Second support, 20C ... Third support.

Claims (5)

A tubular body supporting unit for supporting a plurality of tubular bodies located inside the main pipe inside the main pipe, wherein the plurality of tubular bodies for flowing another medium that exchanges heat with a medium flowing through the main pipe A tubular body supporting unit for aligning the extending direction of each body,
The plurality of tubular bodies includes a first tubular body group composed of a plurality of tubular bodies, and a second tubular body group composed of a plurality of tubular bodies different from the first tubular body group,
The tubular body support unit,
A second support for supporting the second tubular body group;
A first support that supports a part of the first tubular body group and the second tubular body group ;
A support holder for positioning the first support body and the second support body with respect to the main pipe ,
The main pipe includes a first main pipe and a second main pipe having an end portion whose diameter is increased toward an end portion of the first main pipe, and the main pipe extends on an inner surface of the main pipe. The end of the first main pipe is inserted into the end of the second main pipe so that there is a gap in the direction,
A tubular body support unit, wherein the support holder includes a fitting portion that fits in the gap so that displacement of the support holder along the extending direction of the main pipe is suppressed . The support holder includes a first support holder that is connected to the first support body, a second support holder that is connected to the second support body, the first support holder and the second support holder. The tubular body support unit according to claim 1, further comprising: a pressing member that is located between the first support holder and the second support holder to press the second support holder toward the inner surface of the main pipe . The second tubular body group includes a boundary tubular body that is a tubular body adjacent to the first tubular body group among a plurality of tubular bodies,
The tubular body support unit according to claim 1 or 2, wherein the first support body supports the first tubular body group and the boundary tubular body. The tubular body support unit according to any one of claims 1 to 3, wherein a position of the first support body and a position of the second support body are different from each other in the extending direction of the tubular body. The first support includes a plurality of support portions for supporting the tubular bodies one by one,
The second support includes a plurality of support portions for supporting the tubular bodies one by one,
The tubular body support unit according to claim 1, wherein the number of support portions included in the first support body and the number of support portions included in the second support body are equal to each other.