JP2009030434A - Vertical pipe unit, vertical pipe execution method, and building structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical pipe unit, which can facilitate execution by virtue of laying without the need to separate pipes having a common laying route and unnecessity of separately providing a pipe line space for an electric cable and can realize easy execution of an electric distribution work, and to provide a vertical pipe execution method, and a building structure. <P>SOLUTION: This vertical pipe unit comprises a hollow cylindrical brace 2 formed of an SPG pipe, a vertical pipe 3, which is disposed around the brace along the axis line of the brace and is supported on the brace through a support member, and a holding-up member 8 provided on the upper part of the brace. The vertical pipe is a coolant pipe through which a coolant, which undergoes a gas-liquid phase change, is circulated between an outdoor unit and an indoor unit in a package-type air conditioner. The brace is provided with a pullout hole 2a through which an electric cable for electrically connecting the outdoor unit to the indoor unit is inserted and through which the electric cable is pulled out to the outside of the side face of the brace. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to, for example, a construction method suitable for construction of soft and relatively small-diameter pipes such as piping and wiring for connecting outdoor units and indoor units in the construction of air conditioning equipment using package type air conditioners. is there.

  The air conditioning system is equipped with a central heat source such as a refrigerator and transports hot or cold water as a heat medium to the air conditioning load of the room, etc., and has its own refrigeration cycle and is installed near the room or room There is an individual air conditioning system using a packaged air conditioner. Among the package type air conditioners used in this individual system, there is one that makes a refrigerant that changes in gas-liquid phase, such as chlorofluorocarbon, go back and forth between an outdoor unit and an indoor unit.

  Individual air-conditioning systems have become widespread in small buildings due to their ease of construction.

  However, if the individual air-conditioning system is adopted for large-scale buildings, not only is it not satisfactory in terms of rising equipment costs, occupant comfort, and controllability, but there are also problems in construction, and it is one step further in the spread. There was a view of.

  In particular, in the case of a package type air conditioner including an outdoor unit and an indoor unit (hereinafter, unless otherwise specified, a package type air conditioner refers to an outdoor unit and an indoor unit). There are various problems such as guaranteeing the equipment capability due to the difference in height between the indoor unit and the indoor unit, and an important issue is the construction of a soot pipe for returning the refrigerant that changes the gas-liquid phase between the outdoor unit and the indoor unit Sex. This refrigerant has a low pressure, and a copper pipe is usually used.

  The cold / hot water pipe used in the central air-conditioning system is a steel pipe, and one pipe is sufficient for each of the forward and return pipes, so piping construction is easy. On the other hand, since the package type air conditioner used for the individual air conditioning system has limited equipment capacity, a large number of outdoor units are required, and the refrigerant piping must be divided into multiple systems accordingly. It is necessary to carry out return piping every time, and the number of momentum pipes becomes very large.

  Further, in the package type air conditioner, in addition to the refrigerant pipe, wiring work for connecting the outdoor unit and the indoor unit with an electric signal line (crossover wiring) is accompanied. Conventionally, the construction of the pipes and the construction of electrical cables such as electrical signal lines have been performed as follows.

  <Method of fixing to cable rack and constructing> When penetrating pipes and electrical cables are penetrated through the floor of a building, this conventional construction method, in which dredging pipes are fixed to a cable rack, is complicated to handle the penetrating part. It is. The treatment of the through-hole is performed by placing a pipe insertion sleeve first and then placing concrete to complete the floor. After that, when the refrigerant pipe is inserted through the sleeve, the sleeve is inserted between the refrigerant pipe and the refrigerant pipe. It is a process of closing the gap that occurs.

  That is, since the refrigerant pipe (refrigerant copper pipe) and the electric wire easily burn, a much stricter fire prevention treatment is required as compared to the steel pipe, and the fire prevention treatment for preventing the spread of the fire is also required for the through portion.

What is called a refrigerant pipe kit is also commercially available as a member dedicated to filling the gap in the through portion. This refrigerant pipe kit has a sleeve shape that sandwiches and fixes the refrigerant pipe from both sides, and this refrigerant pipe kit expands due to heat in a fire and completely fills the gap between the refrigerant pipe and prevents fire spread. However, this refrigerant pipe kit is expensive, and if the number of through portions to be processed increases, the material cost and construction cost as a whole become extremely high. When this prescription is not used, fire-resistant putty, rock wool, etc. are applied between the through hole and the refrigerant pipe, but there are many places to be processed, which requires work costs and labor.

Also, with this construction method, the pipe must be routed along the cable, so a cable rack with the same length as the pipe or excluding the penetrating part is required, the amount of steel is increased, and the fasteners are also Increasing the cost.

  <Method by Unitization> As a pipe construction method using a steel pipe, a unit construction method as shown in Japanese Patent Publication No. 6-100016 is known. In this method, a frame called a floorboard is manufactured at the factory, and steel pipes are fixed to the frame to unitize the pipes. Each unit is lifted and installed. In this method, the unit is manufactured at the factory, so the accuracy is high and the work at the site can be minimized. In addition, when this unitization method is applied to a building with a structure in which a concrete is placed on a corrugated steel plate called a deck plate, the opening for pipe insertion is closed with a floor plate, and concrete is placed on one side. No part processing is required.

  When this unitization method is applied to the construction of refrigerant pipes and electric wires, the following problems arise. Since the refrigerant pipe and the electric wire are soft and have a small diameter, they are easily kinked or damaged, and it is very difficult to set in a predetermined position, which is not practical. In order to solve this problem, if the support member is provided along the refrigerant pipe or the electric cable, the support interval is inevitably shortened, and the cost of the steel material is increased, which is also not realistic.

  Also, in this construction method, a frame must be assembled, and the steel material must be further extended and locked vertically and horizontally from the frame, and this must be performed at every support interval, requiring a large amount of steel material, and the steel material itself A high-grade specification is required, and the number of fasteners increases, which increases costs.

  In addition, since the frame is arranged outside the tube group to be fixed, a large installation space is required, which is disadvantageous for transporting and storing the unit, and there is also a floor opening necessary for installing the unit. It must be large.

  The present invention has been made in view of the problems of the prior art as described above, and provides a dredging unit, a dredging piping construction method, and a building structure that can be easily constructed, reduce the work period, and reduce the cost. The purpose is to do.

The present invention employs the following means in order to solve the above problems.
(1) The soot tube unit according to the present invention is provided on a support column, a soot tube arranged around the support column along the axis of the support column and supported by the support column via a support member, and an upper portion of the support column. And a lifting member.

  The soot tube unit can be manufactured in advance at the factory, and the joining work such as welding and welding in the unit can be completed in the factory, so troubles caused by poor joints can be reduced, and construction The joining man-hours at the construction site of the structure can be drastically reduced. In addition, when constructing a pipe for a building structure using this pipe unit, even if the pipe is made of a soft material that is easy to bend, the pipe must be firmly and securely installed on the building structure. Can do.

  The support column may be hollow or solid as long as it has a predetermined strength, and the cross-sectional shape is not limited to a rectangle or a circle. As a soot pipe, a water supply pipe, a drain pipe (drain pipe), a refrigerant pipe for air conditioning, etc. can be illustrated. Examples of the pipe material include annealed copper pipes, polybutene pipes, and cross-linked polyethylene pipes. The refrigerant pipe is generally a copper pipe that can be bent easily. The lifting member can be composed of an eyebolt, a hook, a locking hole provided in the column, and the like.

(2) In the soot tube unit as described in said (1), the connection member for connecting the edge parts of a support | pillar to the edge part of the said support | pillar can be provided. If it does in this way, the operation | work which connects a vertical tube unit up and down becomes easy. For example, the connecting member may be formed of a metal plate-like body provided at the end of the column, and the plate-like bodies may be fastened with bolts and nuts.

(3) In the soot tube unit according to (1) or (2), the support column is formed in a hollow cylindrical shape, an electric cable can be inserted into the support column, and the electric cable is placed on the side surface of the support column outside the support column. You may provide the drawer hole for drawing out. If it does in this way, a support | pillar can be functioned as a sleeve which penetrates the floor part of a building structure, electrical wiring construction will become easy, and a construction man-hour and construction cost can be reduced.

(4) The soot tube unit according to any one of (1) to (3) includes a plate-like body that penetrates the support column and the soot tube, and is configured by fixing the plate-like body to the support column. May be. If it does in this way, the hole-filling process of the through-hole of the floor part of a building structure, a backfill process, and a fire prevention process can be abbreviate | omitted or reduced by this plate-shaped object, and a construction man-hour and construction cost can be reduced. .

(5) In the soot tube unit according to (4), the plate-like body is fixed to the support column and is disposed around the fixing unit and is rotatably attached to the fixing unit. It is preferable to provide a movable part. By tilting the movable part, it is possible to change the area of the plate-like body in plan view, thereby making it possible to reduce the opening for penetrating the pipe unit provided in the floor part and filling the hole after insertion. Can also be done easily.

(6) In the soot tube unit according to (4) or (5), a plurality of the plate-like bodies are provided, and the spacing between the plate-like bodies arranged adjacent to each other and the plate-like bodies is that of the building structure. It is preferable to correspond to the floor height.

(7) A dredging pipe construction method according to the present invention is provided on a strut, a trough pipe arranged around the strut along the axis of the strut and supported by the strut via a support member, and an upper portion of the strut. A plurality of tub tube units including a lifting member and a connecting member provided at the end of the support column, and an opening is provided at substantially the same position in plan view on the floor of each floor of the building structure, The first tub tube unit is lifted, the first tub tube unit is inserted into the building structure from the uppermost opening at the time of construction of the building structure, and the openings of the floor portions of each floor are sequentially inserted. Then, after installing the soot pipe unit in a standing position at a predetermined position, the second soot pipe unit is lifted to open the uppermost opening at the time of construction or next construction of the building structure. From the second 竪 pipe unit Inserted into the structure, and sequentially lowered through the openings of the floors of each floor, and placed the second tubule unit in a standing position on the first tub tube unit, By connecting the connecting member provided at the upper end of the soot tube unit and the connecting member provided at the lower end of the second soot tube unit, the column of the first soot tube unit and the column of the second soot tube unit Are connected to each other, and further, the soot pipe of the first soot pipe unit and the soot pipe of the second soot pipe unit are connected, and the soot pipe units are sequentially connected upward in the same procedure. And

  When this dredging method is adopted, dredging can be extremely easily performed. In addition, the magnitude | size of the opening provided in the floor part of each floor does not need to be the same dimension. In general, the pillars of a building are thicker on the lower floor than on the upper floor, but the vertical pipe unit is equipped with a pipe that connects the outdoor unit of the air conditioner installed on the roof and the indoor unit on each floor In this case, the upper floor has a larger opening in the floor.

  The “opening at the uppermost position at the time of construction” means that the time when the first steel pipe unit is inserted into the building structure is exactly “at the time of construction”, and the building structure that is necessarily finally constructed It is not limited to the opening provided in the rooftop part of the body.

  Further, “at the time of construction or at the time of the next construction” means that the time at which the second steel pipe unit is inserted into the building structure is exactly “the time of construction or the time of the next construction”. It is not limited to “the time of construction” when the 1 竪 pipe unit is inserted into the building structure, but the “next construction time” is the roof of the building structure to be finally built. It is not limited to the time.

(8) In the dredging piping construction method according to (7), the strut of the dredger tube unit is configured with a hollow cylindrical member having an upper opening, and a drawer hole is provided in advance on a side surface of the strut, After connecting a plurality of soot tube units, the electric cable can be lowered into the support column from the upper opening of the uppermost soot unit, and this electrical cable can be pulled out from the pullout hole of each soot tube unit. Good. In this way, electrical wiring work can be easily performed.

(9) A building structure according to the present invention has a hollow cylindrical column installed in a standing posture through the floor, and is disposed around the column along the axis of the column and penetrates the floor. It is characterized by comprising a soot tube supported by a support via a support member, and an electric cable inserted through the hollow portion of the support. In this building structure, it is particularly advantageous when the soot pipe can be installed securely and reliably, and the soot pipe is formed of a flexible material such as a copper pipe.

(10) In the building structure according to (9), the floor portion includes a support floor made of a metal plate and a concrete floor provided on the support floor. A through hole is provided to penetrate the column and the culvert pipe, and a closing plate that closes the through hole is arranged to penetrate the column and the culvert tube, and the concrete floor is formed by placing concrete on the support floor and the blocking plate. It is possible to form it.

  As described above, according to the soot tube unit according to the present invention, the support column, the soot tube arranged around the support column along the support axis and supported by the support column via the support member, By providing the lifting member provided on the upper part, the soot tube unit can be manufactured in the factory in advance, and the joining work in the unit can be completed in the factory, which results in poor jointing. Troubles caused can be reduced, and the number of joining steps at the construction site of the building structure can be drastically reduced. In addition, when constructing a pipe for a building structure using this pipe unit, even if the pipe is made of a soft material that is easy to bend, the pipe must be firmly and securely installed on the building structure. Can do.

  When the end portion of the support column is provided with a connecting member for connecting the end portions of the support column, the operation of connecting the starter tube unit up and down becomes easy.

In the soot tube unit, when the support column has a hollow cylindrical shape, an electric cable can be inserted into the support column, and a pull-out hole for extracting the electric cable from the support column is provided on the side surface of the support column, It can function as a sleeve that penetrates the floor of the building structure, facilitates electrical wiring work, and can reduce the number of construction steps and construction costs.

  In the above-mentioned tub tube unit, a plate-like body penetrating the column and the tub tube is provided, and when this plate-like body is fixed to the column, the floor of the building structure is formed by this plate-like body. The through hole filling process can be performed, and the construction man-hours and construction costs can be reduced. Further, the backfilling process and the fire prevention process can be omitted or reduced.

  In the above-mentioned soot tube unit, when the plate-like body includes a fixed portion fixed to the support column and a movable portion disposed around the fixed portion and rotatably attached to the fixed portion. By tilting the movable part, it is possible to change the area of the plate-like body in plan view, thereby making it possible to reduce the opening for penetrating the pipe unit provided in the floor and filling the hole after insertion Processing can be easily performed.

  According to the dredging pipe construction method according to the present invention, dredging pipe construction and electrical wiring work can be performed very easily. According to the building structure according to the present invention, the soot tube can be installed securely and reliably, and it is particularly advantageous when the soot tube is formed of a flexible material such as a copper tube.

  Further, the material amount of the soot tube unit can be smaller than that of the conventional one, and the cost can be reduced. Furthermore, the congestion of the dredging work can be reduced, the work efficiency can be improved, and the work period can be shortened.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings of FIGS. In addition, in this embodiment, it is the aspect installed in building structures, such as a building, using the refrigerant | coolant pipe | tube, water supply pipe | tube, and drain pipe | tube of a package type air conditioner as a soot pipe.

  As shown in FIGS. 1 and 2, the soot tube unit 1 according to the present invention includes a plurality of packaged air conditioner refrigerant pipes 3 around a hollow cylindrical column 2 made of a so-called gas pipe (SGP pipe). Each of the water supply pipe 4 and the drain pipe 5 is provided. The SGP pipe is commonly used as a pipe material for building equipment construction.

  A connecting plate (connecting member) 6 used when connecting the columns 2 to each other is fixed to the upper and lower ends of the columns 2. The connecting plate 6 is welded and fixed to the support column 2 in a state where the support column 2 is inserted into a through hole provided in the connecting plate 6. 1 is fixed to the concrete floor 60 on the lowest floor of the building structure (in this embodiment, the first floor), the bottom end of the column 2 A base plate 7 is fixed instead of the connecting plate 6. Two eyebolts (lifting members) 8 are screwed and fixed to the connecting plate 6 fixed to the upper end of the column 2.

  In the following, description will be given by taking the lowermost floor duct unit 1 shown in FIG. 1 as an example. The support column 2 has a height in which the upper end of the support column 2 protrudes upward from the floor portion of the third floor of the building in a state where the base plate 7 is installed on the concrete floor 60 of the first floor (see FIG. 7). The support column 2 is provided with a drawer hole 2a that opens into the first floor space and a drawer hole 2b that opens into the second floor space. In addition, a closing plate (plate-like body) 9 is attached to the column 2 at the same height as the floor 50 on the second floor and the floor 50 on the third floor. The closing plate 9 is a fixed plate (fixed portion) 9a having a rectangular shape in plan view and having a column 2 penetrating through the center, and a movable side plate rotatably attached to four side edges of the fixed portion 9a via hinges 9c. (Movable part) 9b, and the fixed plate 9a is fixed to the support column 2 by welding.

  Around the support 2, six refrigerant pipes 3, one water supply pipe 4, and one drain pipe 5 are arranged at positions where they are separated from each other by 45 degrees in the circumferential direction. (See FIG. 2). The refrigerant pipe 3, the water supply pipe 4 and the drain pipe 5 are all arranged away from the support 2 and through a metal support arm (support member) 10 fixed to the support 2 as shown in FIG. 4. The column 2 is supported.

  The water supply pipe 4 is formed of a VLP pipe (vinyl chloride lining steel pipe), and the drain pipe 5 is formed of an SGP pipe, both of which are straight pipes. The refrigerant pipe 3 includes a forward pipe 3a for transporting the refrigerant from the outdoor unit of the package type air conditioner to the indoor unit, a return pipe 3b for transporting the refrigerant from the indoor unit to the outdoor unit, and the forward pipe 3a and the return pipe. It is comprised from the cladding tube 3c which coat | covers 3b. The outgoing pipe 3a and the return pipe 3b are made of copper pipes, the cladding pipe 3c is made of plastic, and the refrigerant pipe 3 can be freely bent, but it is a straight straight line before being installed in the building. It is made into a shape. Further, the outgoing tube 3a, the return tube 3b, and the cladding tube 3c are fixed to each other so as not to move by an appropriate fixing member that is inserted into a gap between them.

  The refrigerant pipe 3, the water supply pipe 4, and the drain pipe 5 all pass through the fixing plate 9 a of the closing plate 9, and the lengths of these pipes 3, 4, 5 are set shorter than the support column 2. Moreover, all these refrigerant pipes 3 do not have the same length, but the lengths differ depending on which floor of the building structure is connected to the indoor unit.

Moreover, the signal cable 11 which connects the outdoor unit and indoor unit of a package type air conditioner can be inserted in the support | pillar 2 from the upper opening of the support | pillar 2, and also the inserted signal cable 11 is shown in FIG. It is possible to pull out from the pull-out holes 2a, 2b of the column 2 to the outside. A large number of the above-described soot tube units 1 are assembled in a factory and transported to a construction site of a building structure such as a building to be built.

  FIG. 6 shows an example in which six trough pipe units 1 are transported by truck from the factory to the construction site. In this conveying method, the movable side plate 9b of the closing plate 9 of the soot tube unit 1 is previously tilted so as to be perpendicular to the fixed plate 3a as shown in FIG. 3, and temporarily fixed with tape or the like. . In FIG. 3, the support 2, the refrigerant pipe 3, the water supply pipe 4, the drain pipe 5, and the insertion holes for these pipes are omitted. On the other hand, on the loading platform 101 of the truck 100, a long stand 102 having a U-shaped cross section is fixed in a position where the movable side plate 9b is located when the tub tube unit 1 is placed on its side. Keep it. The movable side plates 9b of the three tub tube units 1 are inserted into the stand 102 from above, and three units are arranged in parallel. In FIG. 6, insertion holes for these pipes in the refrigerant pipe 3, the water supply pipe 4, the drain pipe 5, and the closing plate 9 are omitted. Next, the upper movable side plate 9 b in the three-unit side tube unit 1 is covered with a connection stand 103 having an H-shaped cross section with the top and bottom open, and the upper movable side plate 9 b is inserted from the downward opening of the connection stand 103. Next, the movable side plates 9b of the other three soot tube units 1 are inserted from the upward opening of the connection stand 103, and three units are arranged in parallel. Next, the upper movable side plate 9b of the upper three units of the tub tube unit 1 is covered with a stand cap 104 having a U-shaped cross section with the lower side open, and the upper movable side plate 9b is placed from the downward opening of the stand cap 104. insert. Then, a wire 105 is stretched on both ends of the stand cap 104 and fixed to the loading platform 101 of the truck 100. If it does in this way, 6 units of the tub tube unit 1 can be safely and reliably loaded on the loading platform 101 of the truck 100 and can be transported.

Next, the construction method of the soot pipe using this soot pipe unit 1 is demonstrated. The floor 50 of the building structure in this embodiment is composed of a support floor 51 made of a metal plate material called a so-called deck plate, and a concrete floor 52 formed by being placed on the support floor 51. In that case, the soot tube unit 1 is installed before placing concrete on the support floor 51.

  First, as preparation for construction, through holes (openings) 51a are provided at the same position in plan view on the support floor 51 of the floor portion 50 and the rooftop portion of each floor of the building structure. As shown in FIG. 3, the size of the through-hole 51a is such that the closing plate 9 is inserted when the movable side plate 9b of the closing plate 9 of the soot tube unit 1 is tilted at a substantially right angle with respect to the fixed plate 9a. In such a state that the closing plate 9 cannot be inserted when the movable side plate 9b is flush with the fixed plate 9a. On the other hand, the movable side plate 9b of the closing plate 9 of the soot tube unit 1 is tilted so as to be substantially perpendicular to the fixed plate 9a in the same manner as when transported by the track 100, and temporarily fixed.

  Next, the wire 70 is hung on the eyebolt 8 of the soot tube unit 1 and is lifted with a crane so that the soot tube unit 1 is in the standing posture. And the tub tube unit 1 is inserted from the through-hole (not shown) of the floor part of the roof of a building structure, and further, as shown in FIG. 1, it penetrates into the through-hole 51a of the support floor 51 of the floor part 50 of each floor. And descend.

  Then, when the base plate 7 of the tub tube unit 1 comes in contact with the concrete floor 60 on the first floor which is the lowest floor of the building structure, the base plate 7 is placed at a correct position, and the vertical of the column 2 is lowered using a swinging swing or the like. The base plate 7 is fixed to the concrete floor 60 with anchor bolts 61 as shown in FIG.

  Next, the movable side plate 9b of the closing plate 9 is tilted so as to be flush with the fixed plate 9a, and the periphery of the movable side plate 9b is fixed to the support floor 51 by welding. As a result, the steel pipe unit 1 is fixed so as to be immovable with respect to the building structure even before the concrete floor 52 is placed, and at the same time, the through hole 51a of the support floor 51 is blocked by the blocking plate 9. It will be blocked. Thereafter, the wire 70 is removed from the eyebolt 8, and the eyebolt 8 is further removed from the connecting plate 6.

  Next, another hoisting pipe unit 1 to be connected to the hoisting pipe unit 1 is lifted by a crane in the same manner as described above, and is lowered through the through hole 51a of the floor 51 of each floor. The lower connecting plate 6 is placed on the upper connecting plate 6 of the tub tube unit 1 previously fixed to the building structure, and the connecting plates 6 and 6 are connected by bolts and nuts (not shown). Next, the movable side plate 9b of the closing plate 9 of the soot tube unit 1 is fixed by welding to the corresponding floor 51 of the floor in the same manner as described above. Similarly, the necessary number of tub tube units 1 are sequentially connected upward and extended to the top floor of the building structure.

  Next, concrete is cast on the floor 51 of each floor to form a concrete floor 52. Next, the refrigerant pipe 3 connected to the indoor unit on each floor of the building structure in each vertical pipe unit 1 is bent horizontally in a predetermined direction at a predetermined position to be connected to the refrigerant pipe of the indoor unit, and the vertical adjacent vertical pipes. The refrigerant pipes 3 of the pipe unit 1, the water supply pipes 4, and the drain pipes 5 are connected. In addition, the connection of the refrigerant | coolant pipe | tube 3 is connecting the outgoing pipes 3a, connecting the return pipes 3b, and connecting the cladding pipes 3c. Moreover, the refrigerant pipe 3 of the soot tube unit 1 is set to be short in advance, and it is preferable in terms of construction that the shortage is connected by a short pipe.

Next, the signal cable 11 for electrically connecting the outdoor unit installed on the roof and the indoor unit installed on each floor is inserted from the through-hole on the floor of the roof of the building structure, and the uppermost wall The tube unit 1 is dropped into the column 2 from the upper opening of the column 2. The connection of the signal cable 11 to the outdoor unit may be before or after the signal cable 11 is dropped into the column 2. And as shown in FIG. 5, the signal cable 11 is pulled out from the drawer holes 2a and 2b of the column 2 on the floor where the indoor unit to be connected is installed, and connected to the corresponding indoor unit. When the signal cable 11 is pulled out from the pull-out holes 2a and 2b, it can be easily pulled out by using a pull-out bar with a hook at the tip. Further, when the connection work of these signal cables 11 is completed, the through hole in the floor portion of the roof is closed with an appropriate waterproof treatment.

FIG. 8 is a longitudinal sectional view of the building structure constructed as described above, and 80 in the figure denotes an indoor unit of a packaged air conditioner. If the soot tube unit 1 is manufactured in advance at the factory in this way, considerable welding work can be completed at the factory, and as a result, the number of welding processes at the construction site can be reduced, resulting in poor welding. The trouble caused can be reduced and the construction cost can be reduced. Further, the refrigerant pipe 3 and the like can be firmly and securely fixed.

  In addition, since the strut 2 functions as a sleeve that penetrates the floor 50 of each floor and the signal cable 11 is inserted into the strut 2, the electrical wiring work is greatly simplified and the number of construction steps is reduced. The construction cost can be reduced.

  In addition, since the closing plate 9 for closing the through hole 51a of the support floor 51 of the floor 50 is preliminarily provided in the tub tube unit 1, the filling process, backfilling process, and fire prevention process of the through hole 51a are omitted or It is possible to reduce the number of construction steps and the construction cost.

  Further, the material amount of the soot tube unit can be smaller than that of the conventional one, and the cost can be reduced.

It is a front view in one embodiment of the soot tube unit concerning the present invention, and is a figure showing the state before fixing to a building structure. It is a top view of the said soot tube unit. It is a perspective view of the obstruction board in the said tubule unit. It is a perspective view which shows the support structure of the refrigerant pipe in the said soot tube unit. It is a perspective view which shows the state which pulled out the electric cable from the support | pillar in the said soot tube unit. It is a perspective view which shows an example in the case of carrying the several said soot tube unit mounted on a vehicle. It is a front view which shows the state after fixing the said steel pipe unit to a building structure. It is sectional drawing of the building structure incorporating the said tub tube unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Soot pipe unit 2 Support | pillar 2a, 2b Drawer hole 3 Refrigerant pipe (soot pipe)
4 Water supply pipe (soot pipe)
5 Drain pipe (soot pipe)
6 Connecting plate (connecting member)
8 Eyebolt (lifting member)
9 Blocking plate (plate-like body)
9a Fixing plate (fixing part)
9b Movable side plate (movable part)
10 Support arm (support member)
11 Signal cable (electric cable)
50 Floor portion 51 Branch floor 51a Through hole (opening)
52 Concrete floor

Claims (8)

A hollow cylindrical column made of an SPG tube;
A soot tube arranged around the support column along the axis of the support column and supported by the support column via a support member;
A lifting member provided on the top of the column,
The pipe is a refrigerant pipe for returning a refrigerant that undergoes a gas-liquid phase change between an outdoor unit and an indoor unit of a packaged air conditioner,
The said support | pillar is a soot tube unit which penetrates the electric cable which electrically connects the said outdoor unit and the said indoor unit, and is provided with the drawer | drawing-out hole for drawing out this electric cable out of this support | pillar in the side surface of this support | pillar.   The tub tube unit according to claim 1, further comprising a connecting member for connecting the ends of the columns to the ends of the columns.   3. The soot tube unit according to claim 1, further comprising a plate-like body penetrating the support column and the soot tube, and the plate-like body being fixed to the support column.   The soot tube unit according to any one of claims 1 to 3, wherein the soot tube is formed of a flexible material.   The fence according to claim 3 or 4, wherein a plurality of the plate-like bodies are provided, and a separation dimension between the plate-like bodies arranged adjacent to each other corresponds to a floor height of the building structure. Tube unit. A hollow cylindrical column composed of an SPG tube, a soot tube arranged around the column along the axis of the column and supported by the column via a support member, a lifting member provided on the top of the column, A connecting member provided at an end of the support column, and the pipe is a refrigerant pipe for returning a refrigerant whose gas-liquid phase changes between an outdoor unit and an indoor unit of a packaged air conditioner, The supporting column is previously provided with a pipe unit in which an electric cable for electrically connecting the outdoor unit and the indoor unit is inserted, and a drawing hole is provided on a side surface of the supporting column to draw the electric cable out of the supporting column. Prepare several,
An opening is provided at substantially the same position in plan view on the floor of each floor of the building structure, and the first tub tube unit is lifted, and the first tub tube unit is opened from the uppermost opening at the time of construction of the building structure. Is inserted into the building structure, and the openings on the floors of each floor are sequentially inserted and lowered, and after this tub tube unit is installed in a standing position at a predetermined position,
The second steel pipe unit is lifted up, and the second steel pipe unit is inserted into the building structure from the uppermost opening at the time of construction or next construction of the building structure. The openings are sequentially inserted and lowered, and the second tubule unit is placed in a standing posture on the first tubule unit,
By connecting the connecting member provided at the upper end of the first soot tube unit and the connecting member provided at the lower end of the second soot tube unit, the column of the first soot tube unit and the second soot tube The unit struts are connected together, and the first and second pipes are connected to each other, and the vertical pipe units are sequentially connected upward in the same procedure. The dredging pipe construction method, wherein the electric cable is inserted into the support column from the uppermost opening, and the electric cable is drawn out from the drawing hole. A hollow cylindrical support column made of an SPG tube installed in a standing posture through the floor,
A soot pipe arranged around the support column along the axis of the support column, penetrating the floor and supported by the support column via a support member,
An electrical cable inserted through the hollow portion of the column,
The pipe is a refrigerant pipe for returning a refrigerant that undergoes a gas-liquid phase change between an outdoor unit and an indoor unit of a packaged air conditioner,
The electrical cable electrically connects the outdoor unit and the indoor unit,
The column is a building structure in which the electric cable is inserted, and a drawing hole is provided on a side surface of the column to draw the electric cable out of the column.   The floor portion is composed of a support floor made of a metal plate and a concrete floor provided on the support floor, and the support floor is provided with a through hole through which the support column and the pipe are passed. The closing plate that closes the through-hole is disposed so as to penetrate the support column and the pipe, and the concrete floor is formed by placing concrete on the support floor and the closing plate. The building structure according to claim 7, wherein

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