JP5589241B2 - Vertical piping fixing structure - Google Patents

Description

The present invention is, for example, in the vertical direction among pipes such as refrigerant pipes and hot water supply pipes arranged from an air conditioning outdoor unit installed on the roof of a building to a plurality of air conditioning indoor units installed on each floor. The vertical pipes (vertical pipes) arranged along the pipe are fixed to the housing. Specifically, a plurality of vertical pipes in which the outer periphery of the fluid main pipe is covered with a heat insulating material on the vertical pipe fixing support portion of the housing. A frame having a length that allows the book to be mounted in a parallel state and having a side surface facing the vertical pipe as a mounting surface is fixed, and the fluid main pipe of the vertical pipe is connected to the frame. A first pipe fixing tool that fixes the vertical movement in a state in which relative movement in the direction is prevented and a second pipe fixing tool that fixes the heat insulating material of the vertical pipe from the outer peripheral surface side to the mounting surface. about the vertical pipe fixed structure you have configured to be capable of attachment to.

  In this type of vertical pipe fixing structure, even if the vertical pipe is fixed to the frame fixed to the frame using only a simple second pipe fixing tool that tightens the vertical pipe from the outer peripheral side of the heat insulating material, In particular, it is impossible to prevent the fluid main pipe from slipping down due to the heat insulation material being crushed or sagging, or the fluid main pipe from moving in the vertical direction due to thermal expansion and contraction. There is a possibility that buckling deformation occurs at the bent portion on the lowermost end side.

  Therefore, in general, the first pipe fixture that prevents the relative movement of the main pipe in the direction of the axis of the fluid main pipe at or near the vertical center of the vertical arrangement length of the vertical pipe. Thus, by fixing to the frame on the housing side, a method of reducing buckling deformation at the bent portion of the lowermost end of the fluid main pipe by reducing the load due to the weight of the pipe or thermal expansion and contraction is taken.

  And in order to comprise the 1st piping fixing tool which has a big effect on suppressing the buckling deformation of the said fluid main pipe, conventionally, as shown in patent documents 1-4, the vertical piping fixing support site | part of the said housing A mounting base material fixed to a mounting surface that is a side surface facing the vertical pipe by a bolt and a nut, which is an example of a fixing means, of a U-shaped frame or an L-shaped frame fixed to A pipe engaging support member that is externally engaged with a fluid main pipe of a vertical pipe, and a bolt and nut as an example of a fixing means for fixing a connected portion of the pipe engaging support member to the connecting portion of the mounting base It is composed of a combination.

  Further, the mounting base is fixed to the mounting base in a state of being applied to the mounting surface of the frame, and is extended to the front side which is the vertical pipe side in a posture along the transverse direction of the frame with respect to the mounting base. And a connecting portion to be provided.

JP 9-329273 A JP 2003-207172 A JP 2004-19688 A JP 2007-255591 A

  The first pipe fixing tool used in this type of vertical pipe fixing structure fixes the fluid main pipe of the vertical pipe in relation to fixing the fluid main pipe of the vertical pipe in a state where relative movement in the axial direction of the pipe is blocked. Since it is divided into a pipe engagement support member that is sheathed in an engaged state with the pipe and an attachment base material for attaching the pipe engagement support member to the attachment surface of the frame, the vertical piping is used as the heat insulating material. Compared with the case where the second pipe fixing tool tightened from the outer peripheral surface side is used to directly attach to the frame mounting face, the pipe mounting dimension from the frame mounting face to the vertical pipe in the first pipe fixing tool becomes larger.

  Therefore, in the case where a plurality of vertical pipes are arranged along the same vertical plane close to the mounting surface of the frame, the main pipe of the vertical pipe fixed by the first pipe fixing tool is attached to the frame. It must be bent greatly at the location where the bending rate is maximized, increasing the complicated bending process of piping at the construction site and possibly restricting the installation work of other vertical pipes .

  Further, as a method of avoiding the bending process of the vertical pipe fixed by the first pipe fixing tool, the vertical pipe arrangement portion of the housing displaced in the vertical direction with respect to the frame is provided from the mounting surface of the frame. A separate frame having an attachment surface is fixed at a position retracted in the frame transverse direction, and the distance between the attachment surface of the separate frame and the attachment surface of the frame in the frame transverse direction is set to be different from that of the first pipe fixing tool. It has been proposed to set the distance corresponding to the difference in the pipe mounting dimension between the two pipe fixing tools and fix the mounting base material of the first pipe fixing tool on the mounting surface of the other frame.

  However, in this vertical pipe fixing structure, it is necessary to fix a separate frame to the vertical pipe installation part of the frame that is displaced in the vertical direction with respect to the frame, so it takes time for construction and increases the construction cost. Easy to invite.

The present invention has been made in view of the above-mentioned actual situation, and the main problem is that a plurality of vertical pipes are arranged along the same vertical plane close to the mounting surface of the frame. Below, vertical pipes that can be securely and easily fixed to an existing common frame without bending the fluid main pipe of the vertical pipe, even when fixing a specific vertical pipe with the first pipe fixture It lies in the fact that provides a fixed structure.

A first characteristic configuration according to the present invention is provided with a length capable of mounting a plurality of vertical pipes formed by covering the outer circumference of a fluid main pipe with a heat insulating material on a vertical pipe fixing support portion of a casing in a parallel state, and A frame having a side surface facing the vertical pipe as the first mounting surface is fixed, and the fluid main pipe of the vertical pipe is engaged with the frame while preventing relative movement in the tube axis direction. A vertical pipe configured to selectively attach a first pipe fixing tool to be fixed and a second pipe fixing tool to be fixed to the first mounting surface in a state where the vertical pipe is tightened from the outer peripheral surface side of the heat insulating material. A fixed structure,
The first pipe fixing tool is fixed in a state in which the upper surface or the lower surface of the frame is applied as the second mounting surface and fixed by the fixing means, and in a posture along the transverse direction of the frame with respect to the mounting base. A mounting base provided with a connecting portion extending downward; a pipe engaging support member that is externally engaged with the fluid main pipe of the vertical pipe; and a pipe engaging with the connecting portion of the mounting base It is in the point comprised from the fixing means which fixes the to-be-connected part of a supporting member.

The first pipe fixture used in this type of vertical pipe fixing structure is related to the fluid main pipe in terms of fixing the fluid main pipe of the vertical pipe in a state in which relative movement in the pipe axis direction is prevented from being engaged. Since the pipe engagement support member that is sheathed in the combined state and the mounting base material for attaching the pipe engagement support member to the frame are divided, the vertical pipe is tightened from the outer peripheral surface side of the heat insulating material. Compared with the case of directly attaching to the first mounting surface of the frame using the two pipe fixing tool, the pipe mounting dimension from the first mounting surface of the frame to the vertical pipe in the first pipe fixing tool is increased.

However, in the present invention, the mounting base is fixed by the fixing means in a state where the upper surface or the lower surface of the frame is applied as the second mounting surface, and in the transverse direction of the frame with respect to the mounting base. By connecting with the connecting portion extending upward or downward in a posture along the line, the horizontal dimension of the frame on the upper surface or the lower surface of the frame is used to install the pipe from the first mounting surface of the frame to the vertical pipe. A difference in mounting dimensions between the first pipe fixing tool and the second pipe fixing tool in the dimensions can be easily absorbed.

Therefore, when a plurality of vertical pipes are arranged along the same vertical plane close to the first mounting surface of the frame, a specific vertical pipe is fixed by the first pipe fixing tool. However, it can be reliably and easily fixed to the existing common frame without bending the fluid main pipe of the vertical pipe.

A second characteristic configuration according to the present invention is that a contact portion capable of contacting the first mounting surface of the frame is formed on the mounting base portion of the mounting base.

According to the above configuration, the first mounting surface of the frame, by abutted the contact portion formed on the mounting base of the mounting substrate from the vertical pipe side, the mounting base member to the second mounting surface of the frame Since the attachment reference position in the frame crossing direction is determined, the attachment can be facilitated by sharing the attachment reference of the first pipe fixing tool and the second pipe fixing tool.

  According to a third characteristic configuration of the present invention, the fixing portion of the mounting base of the mounting base and the second mounting surface of the frame has a fixing position of the mounting base by the fixing means within a certain range in the frame transverse direction. There is a first position change permission means for allowing change.

  According to the above configuration, even if there is an error that the installation position of the vertical pipe or the attachment position of the frame with respect to the frame is displaced in the frame transverse direction, the attachment base of the attachment base material by the first position change permitting means The error can be absorbed by changing the fixing position between the frame and the second mounting surface of the frame, and the fluid main pipe of the vertical pipe can be securely fixed without bending.

  According to a fourth feature of the present invention, the fixing position of the pipe engaging support member by the fixing means is set in the frame transverse direction to the fixing part of the connecting part of the mounting base and the connected part of the pipe engaging support member. There is a second position change permission means for allowing the change within a certain range.

  According to the above configuration, even if there is an error that the installation position of the vertical pipe or the attachment position of the frame with respect to the frame is displaced in the frame transverse direction, the connecting portion of the attachment base material by the second position change permitting means The error can be absorbed by the operation of changing the fixing position between the pipe engaging support member and the connected portion of the pipe engaging support member, and the fluid main pipe of the vertical pipe can be securely fixed without bending.

  In particular, when the second position change permission means is used in combination with the first position change permission means, the fixed position adjustment range in the frame crossing direction is widened, and the installation position of the vertical pipe, the mounting position of the frame, etc. It is possible to accurately cope with the error.

  According to a fifth characteristic configuration of the present invention, the length of the mounting base of the mounting base in the frame crossing direction is smaller than the length of the second mounting surface of the frame in the frame crossing direction. It is in.

According to the said structure, in the state which does not interfere with other structural members, such as the wall which exists in the side opposite to the 1st attachment surface facing the vertical piping among the both sides of the cross direction of the said frame. The mounting base of the mounting substrate can be fixed to the second mounting surface of the frame.

The perspective view of the vertical piping fixing structure which shows 1st Embodiment of this invention. Horizontal sectional view of vertical piping fixing structure Perspective view when attaching engagement cylinder to heat insulation material peeling location of vertical pipe The perspective view when attaching a pipe engagement support member to an engagement cylinder The perspective view when attaching a pipe engagement support member and an attachment base material to a frame Side view when the tube engagement support member and the attachment base are attached to the frame Front view of engaging cylinder Top view of engaging cylinder Horizontal sectional view of the tube engagement support member Front view of tube engagement support member Front view of tube engagement support member when disengaged Perspective view of second piping fixture Side view of vertical piping fixing structure showing a second embodiment of the present invention

[First Embodiment]
1 to 6 are air conditioning pipes such as a plurality of refrigerant pipes arranged from an air conditioning outdoor unit installed on the roof of a building to a plurality of air conditioning indoor units installed on each floor, A vertical fixing (fixed piping) of a vertical pipe (vertical piping) P arranged vertically along the equipment shaft opening of the building is fixed to a frame 1 fixed to a vertical pipe fixing support portion of the housing F The piping fixing structure is shown.

  As shown in FIGS. 1 and 2, the frame 1 includes a plurality of vertical pipes P formed by covering the outer periphery of a metal fluid main pipe (for example, a copper refrigerant pipe) 2 with a cylindrical heat insulating material 3. The side surface (front surface) facing the vertical pipe P in the horizontal direction is configured as an attachment surface (hereinafter referred to as a first attachment surface) 1a.

Examples of the frame 1 include a grooved steel, a C-shaped steel, an equilateral angle steel (angle), an unequal angle iron (unequal angle), and a side plate portion 1A provided with at least the first mounting surface 1a. In addition, there are a perforated type in which a large number of attachment holes such as long holes are formed in advance at a predetermined pitch, and a non-perforated type in which no attachment holes are formed, which can be selected and used as appropriate according to use conditions.
In this embodiment, a holeless channel steel frame 1 is fixed to a vertical pipe fixing support portion of the housing F in a state of opening downward, and a mounting hole is drilled with an electric drill or the like at a construction site.

  The fluid main pipe 2 is engaged with the frame 1 in the axial direction of the pipe by engaging the engaging projection 4a formed at the set and fixed portion of the fluid main pipe 2 of the vertical pipe P from the outside in the pipe radial direction. The metal 1st pipe fixing tool A which fixes in the state which prevented the relative movement in this, and the metal which fixes the said vertical pipe P to the 1st attachment surface 1a of the flame | frame 1 in the state clamp | tightened from the outer peripheral surface side of the heat insulating material 3 The second pipe fixing tool B made of metal can be selectively attached.

  In forming the engaging protrusion 4a at the set fixing location of the fluid main pipe 2, in this embodiment, the heat insulating material 3 in the fixing work area including the set fixing location of the fluid main pipe 2 is peeled off, and this peeling is performed. A metal (copper) engagement cylinder 4 having the engagement protrusion 4a projectingly formed in a hook-like shape at the set and fixed portion of the fluid main pipe 2 is fitted from the outside in the pipe radial direction. It is fixed by welding means such as brazing.

  As shown in FIGS. 3, 4, 7, and 8, the engagement cylinder 4 is composed of a plurality of types having an inner diameter corresponding to the type of the outer diameter of the fluid main pipe 2. After the central portion of each engaging cylinder 4 in the tube axis direction is formed to bulge outward in the tube radial direction, it is crushed from the tube axis direction to project in a bowl shape outward in the tube radial direction. The annular engaging projection 4a is integrally formed.

  Further, the engagement cylinder 4 is bendable with a split half cylinder 4A that is divided into two in the circumferential direction and a hinge part 4b that connects one adjacent ends of the two split half cylinders 4A. It consists of a thin plate-like connecting piece 4B, and the other adjacent end of the split half-cylinder 4A is opened to the opening width that can be externally mounted on the fluid main pipe 2 with the hinge portion 4b of the connecting piece 4B as an opening / closing fulcrum. It is configured to be possible.

  As shown in FIGS. 1, 2, 5, and 6, the first pipe fixing tool A is a first fixing means in a state where the upper surface of the upper surface plate portion 1 </ b> B of the frame 1 is applied as the second mounting surface 1 b. 5, the base material A1 is fastened and fixed by bolts 5A and nuts 5B, and the outer casing is engaged with the engagement protrusions 4a of the engagement cylinder 4 fixed to the fluid main pipe 2. Bolt 6A and nut 6B, which is an example of the second fixing means 6 for fixing and connecting the pipe engaging support member A2 and the connecting portion 8 of the mounting base A1 and the connected portions 16B and 17B of the pipe engaging support member A2. It consists of and.

  The mounting base A1 has a rectangular plate-shaped mounting base 7 that can be brought into surface contact with the second mounting surface 1b of the frame 1, and a frame crossing at one side of the mounting base 7 in the longitudinal direction of the frame. Of the connecting portions 8 of the rectangular plate extending upward in a posture along the direction (the direction orthogonal to the first mounting surface 1a), and the both sides of the mounting base 7 in the frame transverse direction, the vertical pipe P And a contact portion 9 that extends downward in a state in which it can be brought into contact with the first mounting surface 1a of the frame 1 at the side portion on the front side that is the presence side of the metal plate. The mounting base 7, the connecting portion 8, and the contact portion 9 are integrally formed by bending a cold rolled mild steel plate, a general structural rolled steel plate, or the like.

  The length in the frame crossing direction of the mounting base portion 7 of the mounting base A1 and the length in the frame crossing direction of the connecting portion 8 are the same, and the length in the frame crossing direction of the mounting base portion 7 is the same. Is configured to be smaller than the length of the second mounting surface 1b of the frame 1 in the frame transverse direction.

  Therefore, even when the side plate portion 1C on the rear side of the frame 1 (opposite side to the first mounting surface 1a) is fixed to the housing F with a bolt or the like, other side portions on the side of the rear side of the frame 1 exist. The attachment base 7 of the attachment base A1 can be reliably fixed to the second attachment surface 1b of the frame 1 while suppressing interference with the constituent members (the housing F, various devices, etc.).

  In order to insert the bolt 5A of the first fixing means 5 into one place in the frame transverse direction of the attachment base 7 of the attachment base A1 and one place on the upper surface plate portion 1B of the frame 1 corresponding thereto. The first and second mounting holes 11 and 12 are formed, and the first mounting hole 11 of the mounting base 7 is formed as a long hole along the frame transverse direction.

  Then, by forming the first mounting hole 11 of the mounting base portion 7 into a long hole, the first fixing means is provided at a fixing portion between the mounting base portion 7 of the mounting base A1 and the second mounting surface 1b of the frame 1. The first position change permitting means C1 is configured to permit the fixing position of the mounting base A1 by 5 to be changeable within a certain range in the frame transverse direction.

  The second fixing means 6 is provided at two locations in the frame transverse direction of the connecting portion 8 of the attachment base A1 and at two locations of the connected portions 16B and 17B of the corresponding tube engagement support member A2. The third and fourth mounting holes 13 and 14 for inserting the bolt 6A are formed, and the third mounting hole 13 of the connecting portion 8 is formed as a long hole along the frame transverse direction.

  Then, by forming the third attachment hole 13 of the connection portion 8 into a long hole, the fixing portion between the connection portion 8 of the attachment base A1 and the connected portions 16B and 17B of the pipe engagement support member A2 Second position change permitting means C2 is configured to permit the position where the pipe engaging support member A2 is fixed by the second fixing means 6 to be changeable within a certain range in the frame transverse direction.

  As shown in FIGS. 4 to 6 and 9 to 11, the tube engagement support member A <b> 2 is a semicircular or substantially semicircular arc clamp that can be applied along the outer peripheral surface of the engagement cylinder 4. Plate portions 16A and 17A, and connection plate portions as the connected portions 16B and 17B that are integrally connected from one end of the plate portions along the tube diameter direction (hereinafter referred to as connection plate portions 16B and 17B). The clamp members 16A and 17A are composed of a pair of left and right clamp members 16 and 17, and the other end portions of the clamp plate portions 16A and 17A can be operated to open and close both the diameter expansion side and the diameter reduction side. When the two connecting plate portions 16B and 17B and the connecting portion 8 of the mounting base A1 are fastened and fixed by the second fixing means 6, the fastening and fixing is performed. Both clamp plate portions 16A, 1 that are reduced in diameter with operation The A, a vertical pipe engagement cylinder 4 which is secured to the fluid main 2 of P in the pipe axis direction is configured to sandwiched fixed in relative immovable state.

  At the center position in the width direction of both the clamp members 16 and 17, by engaging the annular engaging projection 4a of the engaging cylinder 4 fixed to the fluid main pipe 2 from the outside in the pipe radial direction. Engagement holes 19 that prevent relative movement in the tube axis X direction are formed, and each engagement hole 19 is formed in a part of the connecting plate portions 16B and 17B as shown in FIG. In this state, the clamp plate portions 16A and 17A are formed in an elongated slit shape along the circumferential direction opening to the other end side.

  As shown in FIGS. 10 and 11, the engagement connecting portion 18 is a pair of latches formed at the other end portion of one clamp plate portion 16 </ b> A in a state of being divided into two in the width direction by the engagement holes 19. Only when the locking portion 18A formed of the protruding piece 18a and both locking protruding pieces 18a of the locking portion 18A are elastically deformed to the smaller side within the width of the engaging hole 19, the engagement is performed. The locking hole 18B is formed in the other clamp plate portion 17A in an allowable state.

1, 2, and 6, after fixing the engagement cylinder 4 having the engagement protrusion 4 a protruding and fixed to the setting and fixing portion of the fluid main pipe 2 from which the heat insulating material 3 has been peeled off, Clamp plate portions 16A and 17A of the clamp members 16 and 17 constituting the pipe engagement support member A2 of the first pipe fixing tool A are connected to the engagement cylinder 4 and the engagement holes 19 thereof are connected to the engagement cylinder 4. The connecting plate portions 16B and 17B of the clamp members 16 and 17 are attached with bolts 6A and nuts 6B as an example of the second fixing means 6, and are attached to the base material A1. The mounting base portion 7 of the mounting base A1 is fixed to the second mounting surface 1b of the upper surface plate portion 1B of the frame 1 with bolts 5A and nuts 5B as an example of the first fixing means 5. The state of tightening and fixing is shown.
Thereafter, as shown in FIG. 1, the heat insulating material peeling portion of the fluid main pipe 2, the clamp members 16 and 17 constituting the pipe engagement support member A <b> 2, and the connecting portion 8 of the attachment base material A <b> 1 are configured in a substantially T shape. The fixed part heat insulating material 10 is covered.

  As shown in FIG. 12, the second pipe fixture B has screw shafts 22 at both ends of a metal band 21 that can be bent and deformed in a U shape along the outer peripheral surface of the heat insulating material 3 of the vertical pipe P. The band 21 is applied to the outer peripheral surface of the heat insulating material 3 of the vertical pipe P, and the both screw shafts 22 are formed on the side plate portion 1A of the frame 1 by fixing with appropriate fixing means such as rivets and welding. The vertical pipe P is inserted in a state in which the heat insulating material 3 of the vertical pipe P is tightened from the outer peripheral surface side by tightening a nut 23 screwed into the screw shaft 22 inserted through the mounting hole 1D. The frame 1 is configured to be fixed to the first mounting surface 1a.

  A protective member made of synthetic resin that protects the heat insulating material 3 of the vertical pipe P may be attached to the band 21 of the second pipe fixture B.

[Second Embodiment]
In the first embodiment described above, the first fixing means 5 uses the mounting base A1 of the first pipe fixing tool A with the upper surface of the upper surface plate portion 1B of the frame 1 applied as the second mounting surface 1b. Although configured to be fastened and fixed, as shown in FIG. 13, the attachment base A1 of the first pipe fixture A is applied with the lower surface of the upper surface plate portion 1B of the frame 1 as the second attachment surface 1b. The first fixing means 5 may be fastened and fixed.
In addition, since the other structure is the same as the structure demonstrated in 1st Embodiment, the same number is attached to the same structure location as 1st Embodiment, and the description is abbreviate | omitted.

[Other Embodiments]
(1) In the first embodiment described above, the engagement cylindrical body 4 having a two-part structure in which the annular engagement protrusion 4a is integrally formed at the upper and lower central positions at the setting and fixing portion of the fluid main pipe 2, Although it is externally fitted and fixed by welding means such as brazing from the outside in the pipe radial direction, the annular plate-like engagement protrusion 4 a may be directly fixed to the set fixing portion of the fluid main pipe 2.

(2) In the first embodiment described above, the engagement hole 19 formed in the tube engagement support member A2 is
By engaging one engagement protrusion 4a formed on the fluid main pipe 2 from the outside in the pipe radial direction, the relative movement in the pipe axis X direction of the pipe engagement support member A2 is prevented. However, the pipe of the pipe engagement support member A2 is engaged with the fluid main pipe 2 by engaging both ends of the clamp plate portions 16A and 17A of the pipe engagement support member A2 in the pipe axis direction. Two engaging protrusions 4a that prevent relative movement in the direction of the axis X may be formed.

(3) To the pipe engagement support member A2 of the first pipe fixing tool A, the fluid book is accompanied by the fixing operation of the connecting portion 8 of the attachment base A1 and the connected portions 16B and 17B of the pipe engagement support member A2. A number of small locking projections that bite into the outer peripheral surface of the pipe 2 may be provided so that the pipe engagement support member A2 is externally fixed in an engaged state with the fluid main pipe 2 of the vertical pipe P.
In short, the pipe engagement support member A2 of the first pipe fixing tool A is externally fixed to the fluid main pipe 2 of the vertical pipe P in an engaged state in which relative movement in the tube axis direction is prevented. Any structure may be used as long as it has a structure.

  (4) As said 2nd piping fixing tool B, what kind of structure will be sufficient if it can fix to the 1st attachment surface 1a of the flame | frame 1 in the state which fastens the vertical piping P from the outer peripheral surface side of the heat insulating material 3. A thing may be used.

  (5) As the first position change permitting means C1, in the fixing portion between the mounting base 7 of the mounting base A1 and the second mounting surface 1b of the frame 1, the mounting base A1 by the first fixing means 5 is used. Any structure may be used as long as the fixed position can be changed within a certain range in the frame transverse direction.

  (6) As the second position change permitting means C2, in the fixing part between the connecting part 8 of the mounting base A1 and the connected parts 16B and 17B of the pipe engaging support member A2, the second fixing means 6 is used. Any structure may be used as long as the fixing position of the tube engagement support member A2 can be changed within a certain range in the frame transverse direction.

  (7) In the above-described first embodiment, bolts and nuts are given as examples of the fixing means 5 and 6, but other fixing methods such as rivets and welding may be adopted.

A 1st piping fixture A1 attachment base material A2 Pipe engagement support member B 2nd piping fixture C1 1st position change allowance means C2 2nd position change allowance means P Vertical piping F Housing 1 Frame 1a Attachment surface (1st attachment surface)
1b Second mounting surface 2 Fluid main pipe 3 Thermal insulation material 4a Engaging projection 5 Fixing means (first fixing means)
6 fixing means (second fixing means)
7 Mounting base portion 8 Connecting portion 9 Contact portion 16B Connected portion (connecting plate portion)
17B Connected part (connecting plate part)

Claims (5)

The vertical pipe fixing support part of the housing has a length capable of mounting a plurality of vertical pipes in which the outer periphery of the fluid main pipe is covered with a heat insulating material in a parallel state, and the side surface facing the vertical pipe is first. A first pipe fixing tool that fixes a fluid main pipe of the vertical pipe to the frame in a state in which relative movement in the pipe axis direction is prevented from being engaged; A vertical pipe fixing structure configured to selectively attach a second pipe fixing tool that fixes the vertical pipe to the first mounting surface in a state in which the vertical pipe is tightened from the outer peripheral surface side of the heat insulating material,
The first pipe fixing tool is fixed in a state in which the upper surface or the lower surface of the frame is applied as the second mounting surface and fixed by the fixing means, and in a posture along the transverse direction of the frame with respect to the mounting base. A mounting base provided with a connecting portion extending downward; a pipe engaging support member that is externally engaged with the fluid main pipe of the vertical pipe; and a pipe engaging with the connecting portion of the mounting base A vertical pipe fixing structure comprising fixing means for fixing a connected portion of a support member. The vertical piping fixing structure according to claim 1, wherein a contact portion capable of contacting the first mounting surface of the frame is formed on the mounting base portion of the mounting base material.   A first position change allowance for allowing a fixing position of the attachment base of the attachment base and the second attachment surface of the frame to be changed within a certain range in the transverse direction of the frame. The vertical pipe fixing structure according to claim 1 or 2, wherein means are provided.   The fixing portion between the connecting portion of the mounting base and the connected portion of the tube engagement support member is allowed to change the fixing position of the tube engagement support member by the fixing means within a certain range in the frame transverse direction. The vertical pipe fixing structure according to any one of claims 1 to 3, wherein second position change permission means is provided.   The length in the frame crossing direction at the mounting base portion of the mounting base material is configured to be smaller than the length in the frame crossing direction at the second mounting surface of the frame. The vertical piping fixing structure described.

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