JP6630404B2 - Air conditioning piping installation equipment and air conditioning piping installation method - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an air-conditioning pipe installation facility and an air-conditioning pipe installation method for installing a horizontal pulling pipe for a ceiling-mounted air conditioner in a building.

  In some buildings such as office buildings and shops, ceiling-mounted air conditioners such as air-cooled heat pump packages are sometimes installed as indoor air conditioning equipment. In this type of air conditioner, it is necessary to construct a piping such as a refrigerant pipe and a humidification water supply pipe, and a drain pipe of the air conditioner and the humidifier. However, it takes a certain amount of time to construct this piping.

  Conventionally, various construction techniques have been proposed for the purpose of improving the workability of piping around this type of air conditioner. For example, in Patent Literature 1, an air-conditioning unit in which a ceiling-mounted air conditioner and a device connection pipe are integrally housed in a perforated frame is assembled in a factory, transported to a predetermined place by a dedicated pallet, installed, and then connected to a pipe. A method has been proposed.

  Further, in Patent Document 2, an outdoor unit of a packaged air conditioner and an outdoor unit containing an apparatus connection pipe housed in a duct and an anti-vibration gantry are assembled in a factory, transported to a predetermined place and installed, and then the piping is connected. A connection method has been proposed.

  Further, in Patent Document 3, a plurality of refrigerant pipes are installed in a rack cover, a refrigerant pipe unit is assembled in a factory, transported to a predetermined place, installed in a shaft, and then vertically mounted by brazing using a union socket. A method of connecting pipes has been proposed.

  Further, in Patent Document 4, a plurality of refrigerant pipes are installed on a gantry, a refrigerant pipe unit is assembled in a factory, transported to a predetermined place, installed in a shaft, and then connected to upper and lower pipes by soldering using a socket. A construction method has been proposed.

JP 2010-249401 A JP 2001-141263 A JP 2011-145049 A JP 2013-139828 A

  However, the construction method described in Patent Literature 1 has a problem in that it is not possible to reduce man-hours and construction costs because it is necessary to individually construct connection pipes for ceiling-mounted air conditioners.

  Further, in the method described in Patent Document 2, the refrigerant pipes in the duct are individually installed, and the connection with other units can be performed only by the conventional method. There is a problem that this method cannot be applied to indoor piping.

  Further, the method described in Patent Document 3 has a problem that piping in the rack cover is limited to piping that does not require a gradient, and cannot be applied to a horizontal drainage pipe.

  Further, the construction method described in Patent Document 4 has a problem that the piping in the unit is limited to piping that does not require a gradient, and cannot be applied to a horizontal drainage pipe.

  The present invention has been made to solve the above-described problems, and can reduce the number of steps and the construction cost, and provide an air-conditioning pipe construction facility and an air-conditioning pipe construction method applicable to a drainage pipe requiring a slope. It is intended to provide.

  In order to achieve the above-mentioned object, the present invention is an air-conditioning pipe installation facility for installing a horizontal pipe including a drain pipe for a ceiling-mounted air conditioner in a building, wherein the horizontal pipe is provided outside the building. A piping unit that is processed and assembled in advance as a unit, and a seismic base that supports the piping unit transported and suspended in the building at predetermined intervals, and the seismic base mounts the drainage pipe in a predetermined range. And a gradient setting mechanism that can be adjusted and maintained at a desired gradient within.

  In the air-conditioning piping construction equipment according to the present invention, the gradient setting mechanism includes a pipe support portion that supports the drainage pipe from below, and the pipe support portion can swing in a direction in which the drainage pipe is laid and move vertically. And a gradient adjusting section for supporting the pipe supporting section.

  In the air-conditioning pipe construction equipment according to the present invention, the pipe support portion is provided in a direction orthogonal to a direction in which the drain pipe is laid, and is provided in a posture in which a lower part is opened so as to support the drain pipe with a surface. The slope adjusting section is constituted by a channel steel, a bolt for supporting a central portion of the pipe supporting section in the installation direction of the drain pipe at a point from below, and a nut for fixing the bolt to a supporting member. It may be.

  In the air-conditioning piping construction equipment according to the present invention, the piping unit includes the horizontal pulling pipe and a rack for supporting the horizontal pulling pipe, and the pipe units are stacked in a plurality of stages and can be connected to each other. A separable frame member may be provided.

  In the air conditioning piping installation equipment according to the present invention, the horizontal drawing pipe further includes a plurality of refrigerant pipes for the air conditioner and a water supply pipe for a humidifier, and the presence or absence of the refrigerant switching valve assembly unit of the air conditioner and the humidifier. May be provided with a plurality of types of piping units.

  The present invention is an air-conditioning piping construction method for constructing a horizontal pulling pipe for a ceiling-hanging air conditioner in a building, and includes a piping unit that has been previously processed and assembled into a unit to form the horizontal pulling pipe outside the building. A transporting step of transporting to a predetermined place of the building in a state where the pipe units are stacked in a plurality of stages by a frame member and connected, and the piping units stacked and connected in a plurality of steps are separated into respective stages and hung to the predetermined places, and the seismic mount is provided. A step of connecting the suspended piping unit and the air conditioner with piping, and a piping connection step of connecting adjacent piping units to each other. I do.

  In the air-conditioning piping construction method according to the present invention, the hanging step includes a step of temporarily suspending the piping unit slightly higher than a predetermined height, and after attaching the seismic mount, lowering the piping unit to a predetermined height. The method may further include a step of attaching to the seismic gantry and a step of adjusting the horizontal pulling pipe to a desired gradient by a gradient setting mechanism of the seismic gantry.

  ADVANTAGE OF THE INVENTION According to this invention, various outstanding effects can be obtained, such as reduction of the man-hour and the construction cost of the facility construction including the construction of the drainage pipe requiring a gradient.

It is a top view showing the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a front view showing the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a mimetic diagram showing the piping unit of the 1st type in the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a mimetic diagram showing the piping unit of the 2nd type in the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a mimetic diagram showing the piping unit of the 3rd type in the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a schematic diagram which shows the piping unit of the 4th type in the air conditioning piping construction equipment which concerns on embodiment of this invention. It is a front view showing the state where piping units were piled up in three steps in the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a top view showing the earthquake-resistant gantry of the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a side view showing the earthquake-resistant gantry of the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a front view showing the earthquake-resistant gantry of the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a side view showing the slope adjustment mechanism of the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a side view showing the slope adjustment mechanism of the air-conditioning piping construction equipment concerning an embodiment of the invention. It is a side view showing the state where the piping unit was suspended in the air-conditioning piping construction equipment concerning an embodiment of the invention.

  Hereinafter, an air-conditioning piping installation facility 10 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing an air-conditioning piping installation facility 10, FIG. 2 is a front view showing the air-conditioning piping installation facility 10, FIGS. 3A to 3D are schematic views showing first to fourth types of piping units, and FIG. FIG. 5 is a plan view showing the seismic gantry, FIG. 6 is a side view showing the seismic gantry, FIG. 7 is a front view showing the seismic gantry, and FIG. 8 is a slope adjusting mechanism. FIG. 9 is a side view showing a gradient adjusting mechanism, and FIG. 10 is a side view showing a state where a piping unit is suspended. In the following description of an embodiment of the present invention, a case where the present invention is used to construct a horizontal draw pipe for a ceiling-mounted air conditioner at a predetermined place in a building will be described as an example.

  The air-conditioning piping construction equipment 10 according to the embodiment of the present invention includes a piping unit 11, a frame member 12 provided so as to surround the piping unit 11, and a seismic mount 13 for supporting the piping unit 11 at a predetermined interval (within 6 m). And is provided.

  The piping unit 11 includes a refrigerant pipe 15 for the indoor unit 14 of the ceiling-suspended air-cooled heat pump package air conditioner, a water supply pipe 17 for the ceiling-suspended humidifier 16, and a drain pipe 18 for the indoor unit 14 and the humidifier 16. Are processed and assembled in advance outside the building (factory) and supported by the rack 19 to form a unit.

  The refrigerant pipe 15 is formed of a copper pipe, and includes three pipes: a liquid pipe 15a, a suction pipe 15b, and a high-pressure pipe 15c. The water supply pipe 17 is formed by one cross-linked polyethylene pipe, and the drain pipe 18 is formed by one vinyl chloride pipe with a dew condensation preventing layer. The refrigerant pipe 15 and the water supply pipe 17 are covered with a heat insulating material.

  As shown in FIGS. 3A to 3D, the piping unit 11 includes, for example, first to fourth types of piping units 11A, 11B, 11C, and 11D, and is adapted to cope with indoor heat loads. Therefore, each type of piping unit 11A, 11B, 11C, 11D is installed in combination. The size of the piping unit 11 is set to 3,000 mm in overall length, 866 mm in overall width, and 570 mm in overall height in consideration of the workability of transporting by truck, transport by a loading elevator, and flat transport on each floor, Its weight is set to 80 kg or less.

  As shown in FIG. 3A, the first type piping unit 11A includes three refrigerant pipes 15 (a liquid pipe 15a, a suction pipe 15b, and a high-pressure pipe 15c), one water supply pipe 17, The drainage pipes 18, the refrigerant switching valve assembly unit 20 for switching the refrigerant pipes according to the cooling / heating operation states of the plurality of (in FIG. 3A) indoor units 14, and the refrigerant switching valve assembly unit 20. Branch pipes 21a, 21b, and 21c that connect the three refrigerant pipes 15 (the liquid pipe 15a, the suction pipe 15b, and the high-pressure pipe 15c). As shown in FIG. 2, the water supply pipe 17 is provided with a gate valve 23 at the tip of a branch pipe 22. In addition, cheese joints 24 and 25 are attached to the drain pipe 18 at two locations. A drain pipe 26 of the indoor unit 14 can be connected to one of the cheese joints 24, and the other of the cheese joints 25 can be connected to the other. The drain pipe 27 of the humidifier 16 can be connected.

  As shown in FIG. 3B, the second type of piping unit 11B includes three refrigerant pipes 15 (a liquid pipe 15a, a suction pipe 15b, and a high-pressure pipe 15c), one water supply pipe 17, The drainage pipes 18, the refrigerant switching valve assembly unit 20 for switching the refrigerant pipes according to the cooling / heating operation states of the plurality of (in FIG. 3A) indoor units 14, and the refrigerant switching valve assembly unit 20. Branch pipes 21a, 21b, and 21c that connect the three refrigerant pipes 15 (the liquid pipe 15a, the suction pipe 15b, and the high-pressure pipe 15c). The branch pipe 22 and the gate valve 23 are not attached to the water supply pipe 17 of the second type piping unit 11B. Further, a cheese joint 24 for the drain pipe 26 of the indoor unit 14 is attached to the drain pipe 18, but a cheese joint 25 for the drain pipe 27 of the humidifier 16 is not attached.

  As shown in FIG. 3C, a third type of piping unit 11C includes three refrigerant pipes 15 (a liquid pipe 15a, a suction pipe 15b, and a high-pressure pipe 15c), one water supply pipe 17, and one And a drainage pipe 18 of the book. A branch pipe 22 and a gate valve 23 are attached to the water supply pipe 17 in the third type of piping unit 11C. The drainage pipe 18 is provided with a cheese joint 25 for the drain pipe 27 of the humidifier 16, but is not provided with the cheese joint 24 for the drain pipe 26 of the indoor unit 14.

  As shown in FIG. 3D, the fourth type of piping unit 11D includes three refrigerant pipes 15 (a liquid pipe 15a, a suction pipe 15b, and a high-pressure pipe 15c), one water supply pipe 17, and one And a drainage pipe 18 of the book. The branch pipe 22 and the gate valve 23 of the water supply pipe 17 and the cheese joints 24 and 25 of the drain pipe 18 are not attached to the fourth type of piping unit 11D.

  As shown in FIGS. 1 and 2, the rack 19 is made of, for example, a galvanized steel sheet having a thickness of 2 mm. The rack 19 has a total length of 3,000 mm, a width of 700 mm, and a height of 100 mm, two main girders 28 arranged in parallel with the longitudinal direction, and a direction orthogonal to the main girders 28 at a pitch of 300 mm. And ten sub-spars 29 connected to.

  As shown in FIGS. 1, 2, and 4, the frame member 12 is made of a galvanized steel plate, and is formed in a frame shape by connecting a perforated angle 31 with a perforated angle bracket 32. ing. The frame member 12 is configured such that the pipe units 11 are stacked in a plurality of stages and can be connected and separated into each stage.

  FIG. 4 shows an example in which the frame members 12 that support the piping unit 11 are stacked and connected in three stages, and the frame member 12 of the third type of piping unit 11C is shown at the lowermost stage. The frame member 12 of the first type piping unit 11A is shown at the top and the bottom. As shown in FIG. 4, the total height in the case where three layers are stacked is 1,591 mm, and the total weight is 231.8 kg. In consideration of the workability of transportation by truck, transportation by a loading elevator and flat transportation on each floor, the frame member 12 is formed by stacking two or three piping units 11 so that the total weight is 240 kg or less, and bolts and nuts. It is preferred to be fastened with.

  Further, the length and width of the frame member 12 of each step have the same dimensions (for example, the length is 2,520 mm and the width is 875 mm), but the height depends on the type of the piping unit 11 to be supported. And have different dimensions. 1 and 2 show a frame member 12 of a first type piping unit 11A.

  The frame member 12 includes four lower support members 36 disposed at a plurality of positions (four in FIG. 1) in the longitudinal direction of the rack 19 in a direction orthogonal to the rack 19 and supporting the rack 19 from below, and a lower support member Eight vertical members 35 erected at both ends of 36 and provided parallel to the outside of the rack 19, and four orthogonal connecting members connecting the upper ends of the vertical members 35 in a direction orthogonal to the rack 19. 37 and two parallel connecting members 34 that connect the upper ends of the vertical members 35 along the longitudinal direction of the rack 19.

  As best shown in FIGS. 2 and 4, the frame member 12 is provided with a metal fitting 38 for stacking at the upper end of each vertical member 35. The frame member 12 can be stacked and connected to a plurality of stages (three stages in FIG. 2) via the metal fitting 38 and a bolt / nut (not shown) and can be separated into each stage.

  As shown in FIGS. 5 to 9, the earthquake-resistant gantry 13 is made of a channel steel (100 × 50 × 6 t), and has a horizontal member 41 formed in a rectangular shape in plan view, and a horizontal member. 41, and four vertical members 42 erected at the four corners. The horizontal member 41 includes two outer portions 43 arranged in parallel along the outer sides of the two parent girders 28 of the rack 19 in plan view, and two outer portions 43 in a direction orthogonal to the respective outer portions 43. And two connecting portions 44 (supporting members) that connect both ends and support the rack 19 from below.

  8 and 9, each connecting portion 44 is formed of a channel steel arranged in a direction in which the upper side is opened, and the connecting portion 44 is provided with the piping unit 11 in a predetermined range. A gradient setting mechanism 45 is provided, which can be adjusted and maintained at a desired gradient within. The gradient setting mechanism 45 supports the pipe support section 46 that supports the pipe unit 11 from below, and supports the pipe support section 46 so that the pipe support section 46 can swing in the installation direction of the pipe unit 11 and move vertically. And a gradient adjustment unit 47 that performs the adjustment. Further, rack fixing brackets 48 (see FIG. 7) can be attached to both ends of each connecting section 44, and the rack 19 can be fixed to the connecting section 44 by the rack fixing brackets 48.

  The pipe supporting portion 46 is made of a channel steel having a smaller size than the channel steel of the connecting portion 44, and is fitted inside a portion except for both ends of the connecting portion 44 in a downward open direction. Thereby, the piping support portion 46 can support the piping unit 11 in a plane.

  The gradient adjusting section 47 is composed of a bolt 49 for supporting a central portion of the pipe supporting section 46 in the installation direction of the piping unit 11 from below at a point, and a nut 50 for fixing the bolt 49 to the connecting section 44. The gradient adjusting units 47 are provided at positions near both ends of each connecting unit 47 (see FIG. 7).

A plurality of types (for example, three types of 555 mm, 645 mm, and 645 mm) having different heights are prepared for the aseismic gantry 13. The desired gradient (for example, 1/100) can be freely set at (1/200 to 1/30).
Next, an air conditioning piping construction method according to an embodiment of the present invention will be described with reference to the drawings.

  First, in a factory outside the building, the laterally drawn pipes are supported on the rack 19 in advance, and one of the four types of pipe units 11A to 11D shown in FIGS. 3A to 3D is assembled. For example, as shown in FIG. 4, each of the piping units 11 (in FIG. 4, the lowermost stage is a third type piping unit 11C, the second stage and the uppermost stage are first type piping units 11A). Are stacked in three stages by the frame member 12, and bolts and nuts are fastened to the metal fittings 38 for stacking to form a connected state. Then, the three-tiered stacked piping unit is connected to a truck by a forklift and transported to a building.

  In the building, the elevator for temporary loading is lifted to the installation floor and transported horizontally to the specified place. At a predetermined place, the bolts and nuts of the metal fittings 38 for stacking are removed to separate the stacked piping units stacked in three stages into respective stages, and the hanging of the piping units 11 supported by the frame members of each stage is performed. Do the work.

  As shown in FIG. 10, the hanging operation of the piping unit 11 is performed in a state where a predetermined type of piping unit 11 (in FIG. 10, a first type of piping unit 11A) is supported by the columnar member 12. Do. Specifically, both ends of the predetermined type of piping unit 11 in the longitudinal direction are placed on the respective uppers, and the uppers are raised. Before the pipe unit 11 is suspended, a nut 62 is attached to the lower end of the entire threaded rod 61 previously attached to the ceiling slab insert, and the pipe unit 11 is suspended at a slightly higher height than a predetermined height. I do.

  Next, the seismic mount 13 is fixed to a predetermined height at a predetermined interval (for example, 6 m intervals). Thereafter, the nut 62 attached to the entire threaded rod 61 is loosened, and the piping unit 11 is entirely lowered to the predetermined height. In this state, as shown in FIG. 8, the bolt 49 is screwed in the slope setting mechanism 45 on one side (the left side in FIG. 8) until the piping unit 11 reaches a predetermined height H (see FIG. 8). Fix with a nut 50. At this time, the piping unit 11 is supported by the upper ends 44 a and 44 b of both flange portions of the connecting portion 44 and the upper surface 46 a of the piping support portion 46.

  On the other side (the right side in FIG. 8) of the gradient setting mechanism 45, the bolt 49 is screwed in until the piping unit 11 has a height H2 slightly higher than the predetermined height H1, and is fixed with the nut 50. At this time, as shown by a two-dot chain line in FIG. 9, the pipe support 46 is inclined at a predetermined gradient (for example, 1/100) along the installation direction of the pipe unit 11. Supported by the top surface. Then, the loosened nut 62 is tightened up to a position where the weight of the piping unit 11 is applied, and the rack fixing bracket 48 (see FIG. 7) is attached to the connecting portion 44 of the seismic base 13 to fix the piping unit 11. As described above, since the piping unit 11 is supported by the surfaces at the both ends in the longitudinal direction by the piping support portions 46 and has a structure in which concentrated load is not applied, the piping unit 11 can be stably supported.

  Thereby, the piping unit 11 is suspended at a predetermined location in a posture inclined at a predetermined gradient. At this time, the gap between the upper end 44a of the left flange portion of the one side (left side in FIG. 8) and the rack 19 of the piping unit 11 and the right side of the other side (right side in FIG. 8) of the gradient setting mechanism 45. The difference between the gap between the upper end 44b of the flange portion and the gap between the rack 19 of the piping unit 11 and the bolt 49 in the gradient setting mechanism 45 on one side (the left side in FIG. 8) and the other side (the right side in FIG. 8) By confirming the extra length difference (L1-L2 in FIG. 8) from the bolt 49 in the gradient setting mechanism 45), the piping unit 11 can be accurately suspended at a predetermined gradient.

  Thereafter, the suspended piping unit 11, the indoor unit 14, and the humidifier 16 are connected by piping. Thereafter, the following work of suspending the piping unit 11 is performed in the same procedure as described above.

  Next, the rack 19 is connected by a straight connection fitting and three bolts and nuts, and connects the adjacent piping units 11 to each other. At this time, the connection of the refrigerant pipe 15 is made by a plug-in type and a tightening type mechanical joint, the connection of the water supply pipe 17 is made by a plug-in type mechanical joint, and the connection of the drain pipe 18 is made by using an adhesive. It is performed by the socket joint.

According to the air-conditioning piping construction equipment 10 and the air-conditioning piping construction method according to the embodiment of the present invention described above, the construction cost can be significantly reduced due to the reduction in the number of man-hours for the facility construction. For example, when the air conditioning piping of an air-cooled heat pump package air conditioner is installed in a building having a standard floor area of 2,200 m ² , the conventional method requires a construction period of 1.5 months. When the air-conditioning piping installation equipment 10 and the air-conditioning piping installation method according to the embodiment are applied, it is possible to reduce the construction period to 0.5 month, which is １ ／ of the conventional method. In addition to reducing man-hours, occupational safety risks can be reduced to one third.

  In addition, since the description of the embodiment of the present invention described above describes a preferred embodiment of the air-conditioning pipe construction equipment and the air-conditioning pipe construction method according to the present invention, various technically preferable limitations are added. However, the technical scope of the present invention is not limited to these embodiments unless otherwise specified. That is, the components in the above-described embodiment of the present invention can be appropriately replaced with existing components and the like, and various variations including combinations with other existing components are possible, The above description of the embodiments of the present invention does not limit the contents of the invention described in the claims.

DESCRIPTION OF SYMBOLS 10 Air-conditioning piping construction equipment 11 Piping unit 12 Frame member 13 Seismic mount 14 Indoor unit 15 Refrigerant piping 16 Humidifier 17 Water supply pipe 18 Drainage pipe 19 Rack 20 Refrigerant switching valve assembly unit 44 Connecting part (supporting member)
45 gradient setting mechanism 46 pipe support part 47 gradient adjustment part 49 bolt 50 nut

Claims (5)

An air-conditioning pipe construction facility for constructing a horizontal draw pipe including a drain pipe for a ceiling-mounted air conditioner in a building,
A pipe unit which is unitized before Symbol crosscut piping prefabricated and assembled,
An earthquake-resistant gantry supporting the piping unit carried at the building and suspended at a predetermined interval,
The seismic mount comprises a gradient setting mechanism capable of adjusting and maintaining the drain pipe to a desired gradient within a predetermined range ,
The piping unit includes the horizontal pulling pipe, and a rack for supporting the horizontal pulling pipe,
An air-conditioning piping installation facility, comprising: a frame member capable of stacking and connecting the piping units in a plurality of stages and separating them into respective stages .   The gradient setting mechanism supports a pipe support that supports the drain pipe from below, and the pipe support so that the pipe support can swing in the installation direction of the drain pipe and move vertically. The air conditioning piping construction equipment according to claim 1, further comprising: a slope adjusting unit. The pipe support portion is provided in a direction perpendicular to the installation direction of the drainage pipe, and is configured by a channel steel provided in a posture in which a lower portion is opened so as to be able to support the pipe unit on a surface,
The said gradient adjustment part is comprised by the bolt which supports the center part of the said pipe support part in the installation direction of the said drainage pipe from a point below, and the nut which fixes this bolt to a support member. Air conditioning piping construction equipment as described. The horizontal drawing pipe further includes a plurality of refrigerant pipes for the air conditioner and a water supply pipe for a humidifier, and includes a plurality of types of the pipe units according to the presence or absence of the refrigerant switching valve assembly unit and the humidifier of the air conditioner. The air-conditioning piping construction equipment according to any one of claims 1 to 3 , wherein: An air-conditioning pipe construction method for constructing a horizontal draw pipe for a ceiling-mounted air conditioner in a building,
A transportation step of transporting to a predetermined place of the building in a state where the horizontal drawing piping is processed and assembled in advance outside the building, and a unitized piping unit is stacked and coupled by a frame member at a plurality of stages,
A hanging step of separating the piping units stacked and connected to each other and hanging them at the predetermined locations, and supporting them with an earthquake-resistant pedestal,
A step of connecting the suspended piping unit and the air conditioner with piping,
A pipe connection step of connecting the adjacent pipe units,
Equipped with a,
The hanging step,
Temporarily suspending the piping unit slightly higher than a predetermined height,
After attaching the seismic base, lowering the piping unit to a predetermined height and attaching the piping unit to the seismic base,
A step of adjusting the horizontal drawing pipe to a desired gradient by a gradient setting mechanism of the seismic gantry,
Conditioning piping installation method characterized in that comprises a.

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