JP6342183B2 - Pipe device for heat exchange and hanging jig for pipe - Google Patents

Description

  The present invention provides a heat exchanging pipe device that is applied when a plurality of resin-based heat exchanging pipes are arranged in parallel and embedded together, and a pipe hanging jig used in the pipe device. is there. In particular, it is used when a socket is put on the end face of a resin-based pipe such as a so-called electrofusion joint, and then connected by thermal fusion.

  When joining plastic pipes made of polyethylene or other materials with their end faces joined together by thermal fusion (so-called electrofusion joints), a socket is attached to the pipes to be joined, and both sides of the socket are sandwiched by some kind of gripping tool. The pipe was held so as not to move (Patent Documents 1 to 3). In this case, the pipe clamper is clamped with a knob (handle) by sandwiching it with a semicircular pipe clamper as a gripping tool (Patent Document 1). Moreover, in the other method, it tightened using the chain (patent document 2). In another method, a pipe connected to a V-shaped tube receiving portion is mounted while being connected with a band of a hook-and-loop fastener (Patent Document 3).

In addition, the holding jigs in each of the above patent documents assume joining of relatively large-diameter pipes, and are robust and expensive, so they are connected one by one and the connection work is completed. If so, it was assumed that the holder would be removed.
Moreover, such a resin pipe has been embed | buried under the ground with a ready-made pile, and the device which takes out underground heat | fever to the ground was also made | formed (patent document 4). When heat is extracted to the ground using a resin pipe, a pipe that goes from the ground to the ground and a return pipe that goes from the ground to the ground are necessary.

JP-A-8-197435 JP 2000-176845 A JP-A-10-113993 JP 2014-31914 A

  Generally, when exchanging heat in the ground, after excavating a vertical hole or excavating a vertical hole, a pipe for heat exchange is buried, so the construction site is unstable and overflowing with mud Met. Although resin pipes such as polyethylene were also used for this heat exchange pipe, it was difficult to connect the pipes using sockets while lying on the ground as in the background art. Therefore, pipes of sufficient length were brought to the site in advance, and were sequentially drawn out to reach the ground.

  Therefore, the invention for connecting the socket of the background art is difficult to handle, and a device for holding the pipe by using the socket simply and reliably has been demanded.

  The present invention solves the above problems by using a hanging jig that keeps the corresponding pipes at a predetermined distance, holds the pipes positioned above and below, and can also hold the connection socket.

That the present invention, at least one pair of the first pipe for heat exchange, to form a pipe unit in parallel with the second pipe separation between L0, held to the unit pipe arrangement a pipe group of the distance L0 As described above, the unit pipe devices are arranged one above the other, each pipe of each pipe group located above and below is held by a hanging jig and connected in communication by a socket, and the heat exchange pipe is configured as follows. Device.
(1) The suspension jig is configured as follows.
(a) The lower gripping part and the upper gripping part that can hold the pipes are arranged in parallel at a distance L3, and the lower gripping part and the upper gripping part are connected to each other by a longitudinal connecting member, so that the first gripping arm and the second gripping part are connected. Form an arm.
(b) The distance L3 is formed larger than the length L10 of the socket.
(c) The first gripping arm and the second gripping arm are coupled by a lateral coupling member formed corresponding to the distance L0.
(2) In the pipe group arranged above and below,
A first pipe above, and a first pipe of the lower connecting socket, respectively on the gripper and the lower gripper of the first gripping arm of the lifting jig, the first pipe of the upper, first lower Hold the pipe and
The upper second pipe and the lower second pipe are connected by a socket, and the upper second pipe and the lower second pipe are respectively connected to the upper holding portion and the lower holding portion of the second holding arm of the hanging jig . Hold the pipe
(3) Melt each socket and / or part of the pipe and fix the socket to each pipe.
(4) In the same manner, the necessary number of other pipe groups are connected from above.
(5) Each unit pipe device connecting the pipe group is embedded in a vertical hole together with a hanging jig.

In addition, in the above, the heat exchanging pipe device is configured as follows.
The lowermost unit pipe device communicates the lower end of the first pipe and the lower end of the second pipe in the pipe group.

In another invention, a first pipe in parallel, and a second pipe disposed at a distance L0, to form a pipe group, the pipe group are serially arranged, in series with the respective pipes of the pipe groups Is a hanging jig for holding each pipe when communicating with a socket, and is used when embedding a pipe group together with the hanging jig, and is constructed as follows. It is a tool.
(a) The lower gripping part and the upper gripping part that can hold the pipes are arranged in parallel at a distance L3, and the lower gripping part and the upper gripping part are connected to each other by a longitudinal connecting member, so that the first gripping arm and the second gripping part are connected. Form an arm.
(b) The distance L3 is formed larger than the length of the socket.
(c) The first gripping arm and the second gripping arm are coupled by a lateral coupling member formed corresponding to the distance L0.

  In this invention, a pipe group is constituted by a first pipe and a second pipe having a predetermined length kept at a predetermined interval, a unit pipe device is constituted by a pipe group positioned above and below, and each unit pipe device is used. Each pipe can be held by a hanging jig and joined by a socket. In particular, when pipes are buried in the ground and the heat in the ground is taken out to the ground, it is not necessary to carry the pipes into the construction site in a state where they are wound and pull out the pipes while pulling them out. Can be manufactured at the factory, increasing the accuracy of pipe burial work and increasing efficiency.

(A) is a longitudinal cross-sectional view of the unit pipe apparatus of this invention, (b) is a longitudinal cross-sectional view of the unit pipe apparatus used for the lowest end. (A) The top view of the Example of the hanging jig of this invention, (b) is a front view of the same use condition. (A)-(c) is the schematic longitudinal cross-sectional view explaining the embedding method of a unit pipe apparatus. It is a longitudinal cross-sectional view of the pipe apparatus of this invention. It is a pile holder used for implementation of this invention, (a) is a top view, (b) is a front view, (c) is an AA sectional view. It is a top view of the other Example of the holding jig of this invention.

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

1. Unit pipe device 20

(1) The ready-made pile 10 used for implementation of this invention is made of concrete, and has a hollow portion 11 having a length L2 and an inner diameter D2.
(2) Two first pipes 1 and second pipes 2 are arranged in parallel in the hollow portion 11 with a distance L0 (L0 <D2). The length L1 of the pipes 1 and 2 is formed by L1≈L2.
The fall prevention tool 13A is installed at an arbitrary position of the hollow portion (inner wall) 11 of the ready-made pile 10, and the first and second pipes 1 and 2 are locked to the fall prevention tool 13A so as not to come out of the ready-made pile 1. And it is supported so that it can move somewhat in the length direction. The fall prevention tool 13A is formed by, for example, forming a through-hole through which the pipes 1 and 2 pass at the middle position of a steel bar or a steel plate, or connecting a pipe through which the pipe passes (not shown).
As described above, the unit pipe device 20 is configured (FIG. 1A).

2. Socket 21, 22

  A socket 21 for connecting the first pipes in series and a socket 222 for connecting the second pipes in series are formed, and the sockets 21 and 22 are formed with an axial length L10 (FIG. 2B). Moreover, the sockets 21 and 22 have a joint for connecting the cable of the fusion device 27, and can be heated together with the pipe connecting the inside of the sockets 21 and 22 by the fusion device 27.

3. Hanging jig 30

(1) Two semicircular rings are connected so as to be openable and closable to form an upper grip 33 that can be closed inside or opened circularly. A grip portion 34 is formed.
The upper and lower grips 33 and 34 are arranged at a distance L3 in the vertical direction, and the upper and lower grips 33 and 34 are connected by a vertical connection member 35 in the L3 direction to constitute the first grip arm 31. Further, a second gripping arm 32 having the same structure as that of the first gripping arm 31 is configured. Here, the distance L3 is formed by L2> L10, and when the two pipes 1, 1 are arranged in the axial direction and connected by the socket 21, the socket 21 is straddled, and the upper and lower grips 33, 34 are the pipe 1, It is formed so that it can be fitted to the outer periphery of FIG. 1 (FIG. 2B).

(2) The first holding arm 31 and the second holding arm 32 are arranged in parallel, and the vertical connecting member 35 of the first holding arm 31 and the vertical connecting member 35 of the second holding arm 32 are connected by the horizontal connecting member 36. Link. The length of the lateral coupling member 36 is set so that the distance between the pipes 1 and 2 is L0 in a state where the first gripping arm 31 and the second gripping arm 32 respectively grip the pipes 1 and 2. . Further, the horizontal connection member 36 and the vertical connection members 35, 35 are connected so that both the vertical connection members 35, 35 can move slightly in the longitudinal direction of the vertical connection member 35 with respect to the horizontal connection member 36. It is desirable that For example, the horizontal connecting member 36 is formed in a plate shape, through holes are formed at both ends, and the vertical connecting members 35 and 35 are loosely inserted into the through holes (FIG. 2B).
As described above, the hanging jig 30 is formed (FIGS. 2A and 2B).

4). Pile holder 13 (Fig. 5)

The pile holder 13 that temporarily holds the upper ready-made pile 10 when the pipes 1 and 2 are connected vertically is described.
An upper substrate 14 formed in a donut shape corresponding to the thickness of the ready-made pile 10 so as to be in close contact with the end face of the ready-made pile 10 to be used, and formed in a donut shape of 270 ° by cutting out a portion of about 90 °; A lower substrate 15 is formed. The upper substrate 14 and the lower substrate 15 are vertically arranged at a predetermined interval L5, and the lower surface of the upper substrate 14 and the connecting ribs are connected via the connecting ribs 16 and 16 arranged in an annular shape between the upper substrate 14 and the lower substrate 15. 16, 16 and the upper surface of the lower substrate 15 are connected together. Further, the cut 90 ° portion is defined as an operation opening 18.
On the upper surface of the upper substrate 14 and the lower surface of the lower substrate 15, protrusions 17 and 17 are annularly arranged along the outer periphery of the ready-made pile 10 to be used. The pile holder 13 is configured as described above (FIG. 5). Further, the openings 18 and 18 are passed through up and down, so that work can be carried out by placing a hand or upper body from the outer peripheral side to the inner peripheral side (center side). In addition, a partial donut-shaped (about 90 °) annular lid 19 that closes the openings 18 and 18 can be provided so as to be openable and closable (FIG. 5 (c), indicated by a chain line 19).

5. Embedding unit pipe device 20

(1) In the first unit pipe device 20A (located at the lowermost end), the lower end of the first pipe 1A and the lower end of the second pipe 2A are connected by a U-shaped pipe joint 8 (see FIG. 1 (b)).

(2) Drilling a vertical hole (pile hole) 24 of a predetermined depth and using the same equipment as that for normal laying of the ready-made pile 10, the first unit with a pile driving machine (not shown) The lower part of the pipe device 20A is embedded in the vertical hole 24, and the upper end is held on the ground 25 near the opening of the vertical hole 24 (FIG. 3A). Remove the ready-made pile 10 from the pile driver.

(3) Subsequently, the pile holder 13 is placed on the upper surface of the ready-made pile 10A of the unit pipe device 20A, and the second unit pipe device 20B is attached to a pile driving machine (not shown). The second unit pipe device 20B is lowered from above the unit pipe device 20A, and the ready-made pile 10B of the unit pipe device 20B is placed on the upper substrate 14 of the pile holder 13. In this state, L5 can be maintained between the lower end of the upper ready-made pile 10B and the upper end of the lower ready-made pile 10A. L5 is set to such an extent that a socket is inserted into the opening 18 of the pile holder 13 so that the socket can be connected, for example, about 1 m. In this state, the second (upper) unit pipe device 20B is held by a pile driving machine (FIG. 3A). At this time, the ready-made pile 10B held by the pile driving machine can be securely held, and the connecting operation can be performed safely.

(4) Subsequently, the operator puts his hand through the opening 18 of the pile holder 13 and covers the first socket 21 on the upper end of the first pipe 1A of the first (lower) unit pipe device 20A, The lower holding portion 34 of the first holding arm 31 of the hanging jig 30 is fitted into the first pipe 1 </ b> A immediately below the first socket 21. Similarly, the second socket 22 is put on the upper end of the second pipe 2A of the first (lower) unit pipe device 20A, and the lower grip portion 34 of the second grip arm 32 of the hanging jig 30 is placed on the second socket. It covers the second pipe 2A immediately below 22 (FIG. 2B).

(5) Subsequently, the first pipe 1A of the first (lower) unit pipe device 20A is pulled up or the first pipe 1B of the second (upper) unit pipe device 20B is pulled down, and the second ( The first pipe 1B of the upper unit pipe device 20B is inserted into the upper portion of the first socket 21. Further, in the first pipe 1B of the second (upper) unit pipe device 20B, the upper grip portion 33 of the first grip arm 31 is fitted immediately above the first socket 21 (FIG. 2B).
Similarly, the second pipe 2A of the first (lower) unit pipe device 20A is pulled up or the second pipe 2B of the second (upper) unit pipe device 20B is pulled down, and the second (upper) The second pipe 2B of the unit pipe device 20B is inserted into the upper part of the second socket 22. Further, the upper gripping portion 33 of the second gripping arm 32 is fitted directly above the second socket 22 by the second pipe 2B of the second (upper) unit pipe device 20B (FIG. 2B).
In this state, the upper and lower first pipes 1A, 1B and the second pipes 2A, 2B are held so as not to move by the hanging jig 30, and do not come out of the first second sockets 21, 22 (see FIG. 3 (b)).

(6) In this state, the cable 28 of the fusion device 27 is connected to the first socket 21 and the second socket 22, and the fusion device 27 is operated to arrange the pipes 1A, 1B, 2A, and 2B vertically. In this state, the inside of the first second sockets 21 and 22 and the outer periphery of each of the pipes 1A, 1B, 2A and 2B are heated, and the first pipes 1A and 1B are connected by the first socket 21, and the second pipe 2A, 2B is connected by the second socket 22. At this time, in order to avoid dirt dirt from the pile hole 24 or the ground 25, it is desirable that the sockets 21 and 22 be positioned sufficiently above the ground 25 (usually about 1 m from the ground 25).

(7) Subsequently, while returning the drawn pipes 1A, 1B, 2A, 2B into the ready-made piles 10A, 10B, the second (upper) unit pipe device 20B is once raised, and the pile holder 13 Is removed from the ready-made pile 10A and removed.
Subsequently, the ready-made pile 10B is lowered and placed on the upper end of the ready-made pile 10A of the first (lower) unit pipe device 20A, and the upper and lower ready-made piles 10A, 10B are connected by a normal method. The method of connecting the ready-made piles 10A and 10B is arbitrary such as connection by welding, mechanical connection by various joints, or a combination thereof.

(8) Next, the holding of the first (lower) unit pipe device 20A on the ground 25 of the ready-made pile 10A is released, and the connected unit pipe devices 20A and 20B (connected ready-made piles 10A and 10B). In this state, it is embed | buried in the vertical hole 24 with a pile driver (FIG.3 (c)). In this state, since the hanging jig 30 is located in the ready-made piles 10A and 10B together with the sockets 21 and 22, the distance L0 is maintained between the connected first pipes 1A and 1B and the connected second pipes 2A and 2B. As it is, it is embedded in the vertical hole 24.

(9) Subsequently, the second (lower) unit pipe device 20B is similarly held on the ground, and similarly, the third (upper) unit pipe device 20C is lowered from above, and the unit pipe device 20B and the unit pipe device 20C are similarly connected by the sockets 21 and 22 and the hanging jig 30. Subsequently, the connected unit pipe devices 20 </ b> A, 20 </ b> B, and 20 </ b> C are embedded in the vertical holes 24.
The first pipe 1D is connected to the first pipe 1C of the unit pipe 20C by the socket 21 and the second pipe 2D is socketed to the second pipe 2C of the unit pipe 20C. 22 and connecting the first pipe 1D and the second pipe 2D to a heat exchange device (not shown), the embedding of the pipe device 40 (unit pipes 20A to 20C) of the present invention is completed (FIG. 4).
In this case, depending on the depth of the vertical hole 24, the necessary number of unit pipe devices 20 can be connected and embedded in the vertical hole 24.

6). Other embodiments

(1) In the said embodiment, the unit pipe apparatus 20A can also be comprised in the state which previously covered the socket 21 on the upper end of 1st pipe 1A of a pipe group (FIG. 2 chain line illustration 21 and 22). In this case, the socket 21 can be fused to the first pipe 1A, and the socket 22 can be fused and fixed to the second pipe 2A, or can be locked so as not to fall without being fused.

(2) Moreover, in the said embodiment, although the pipe group was comprised from the 1st pipe 1 and the 2nd pipe 2, the 3rd pipe 3-the 6th pipe 6 were further added, and a pipe group was made from a total of six pipes. It can also be configured (FIG. 6 ). In this case, the third pipe 3 and the fourth pipe 4 are connected at the lower end to form a U shape, and the fifth pipe 5 and the sixth pipe 6 are connected at the lower end to form a U shape.
In this case, in addition to the hanging jig 30a for the first pipe 1 and the second pipe 2, the hanging jig 30b for the third pipe 3 and the fourth pipe 4, and the hanging jig for the fifth pipe 5 and the sixth pipe 6 are used. A tool 30b is prepared and used in the same manner (FIG. 6 ).
Alternatively, the suspension jigs 30a, 30b, and 30c may be connected in the vicinity of the center 38 (shown by a chain line) of the lateral connection member to form an integral suspension jig 30 for six pieces (FIG. 6 ).

(3) Moreover, in the said embodiment, although the pipe group (the 1st pipe 1, the 2nd pipe 2) was inserted in the hollow part 11 of the ready-made pile 10 made from concrete, it was set as the unit pipe apparatus 20, It can also be applied (not shown). Furthermore, without using the ready-made pile 10, it is also possible to insert a pipe group inside the reinforcing bar cage of the cast-in-place pile to form a unit pipe device (not shown). In this case, the fall prevention tool 13A is fixed to a reinforcing bar (main or spiral), and the interval between the first pipe 1 and the second pipe 2 is similarly maintained at L0.

1,1A, 1B, 1C, 1 D first pipe 2,2A, 2B, 2C, 2D second pipe 3 third pipe 4 fourth pipe 5 fifth pipe 6 sixth pipe 8 pipe joint 10, 10A, 10B, 10C ready-made pile 11 hollow portion 13A of ready-made pile fall prevention tool 13 pile holder 14 upper substrate 15 pile holder lower substrate 18 pile holder opening 20, 20A, 20B, 20C unit pipe device 21 first Socket 22 Second socket 24 Vertical hole 25 Ground 27 Fusing device 28 Fusing device cable 30 Hanging jig 31 First gripping arm (hanging jig)
32 Second gripping arm (hanging jig)
33 Upper gripping part (hanging jig)
34 Lower grip (suspending jig)
35 Vertical connection member (hanging jig)
36 Horizontal connecting member (hanging jig)
40 Pipe device

Claims (3)

At least one pair of the first pipe for heat exchange, to form a pipe unit in parallel with the second pipe separation between L0, a pipe group of the distance L0 as a unit pipe device holds, the unit pipe A heat exchanging pipe device characterized in that the devices are arranged vertically and each pipe of the pipe group located above and below is held by a hanging jig and connected in communication by a socket.
(1) The suspension jig is configured as follows.
(a) The lower gripping part and the upper gripping part that can hold the pipes are arranged in parallel at a distance L3, and the lower gripping part and the upper gripping part are connected to each other by a longitudinal connecting member, so that the first gripping arm and the second gripping part are connected. Form an arm.
(b) The distance L3 is formed larger than the length L10 of the socket.
(c) The first gripping arm and the second gripping arm are coupled by a lateral coupling member formed corresponding to the distance L0.
(2) In the pipe group arranged above and below,
A first pipe above, and a first pipe of the lower connecting socket, respectively on the gripper and the lower gripper of the first gripping arm of the lifting jig, the first pipe of the upper, first lower Hold the pipe and
The upper second pipe and the lower second pipe are connected by a socket, and the upper second pipe and the lower second pipe are respectively connected to the upper holding portion and the lower holding portion of the second holding arm of the hanging jig . Hold the pipe
(3) Melt each socket and / or part of the pipe and fix the socket to each pipe.
(4) In the same manner, the necessary number of other pipe groups are connected from above.
(5) Each unit pipe device connecting the pipe group is embedded in a vertical hole together with a hanging jig. The heat exchange pipe device according to claim 1, wherein the heat exchange pipe device is configured as follows.
(1) The lowermost unit pipe device connects the lower end of the first pipe and the lower end of the second pipe in the pipe group. A first pipe in parallel, and a second pipe disposed at a distance L0, to form a pipe group, the pipe group are serially arranged, each pipe in series with pipe group when communicating with the socket A suspension jig for holding pipes, which is used when embedding a pipe group together with the suspension jig, and is constructed as follows.
(a) The lower gripping part and the upper gripping part that can hold the pipes are arranged in parallel at a distance L3, and the lower gripping part and the upper gripping part are connected to each other by a longitudinal connecting member, so that the first gripping arm and the second gripping part are connected. Form an arm.
(b) The distance L3 is formed larger than the length of the socket.
(c) The first gripping arm and the second gripping arm are coupled by a lateral coupling member formed corresponding to the distance L0.

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