JPH0960905A - Heat-insulation pipe unit and air-conditioner provided with the pipe unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify and shorten the piping works and improve the quality, by integrally forming a feed pipe, a return pipe, and a drain pipe with a heat- insulative material as a unit. SOLUTION: A pipe is bent to form a feed pipe 60, a return pipe 61, and a drain pipe 62. These pipes are contained in a casing 70. Urethane is filled in a horizontal case 71 and foamed with heat to form a heat-insulative material 53. Thereafter, urethanes are filled in a vertical case 72 and foamed with heat to form a heat-insulative material 53. In this way, a heat-insulation piping unit 50 is produced. The connection parts 65, 65,... of respective main body sides of the feed pipe 60, the return pipe 61 and the drain pipe 62 for cold and hot water in the heat-insulation piping unit 50 are connected to the pipes at the unit side of a fan coil unit and also the connection parts 66, 66,... of the piping side are connected to the main pipes through connection pipes. In this way, the water piping work is finished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulation piping unit and an air conditioner equipped with the heat insulation piping unit.

[0002]

2. Description of the Related Art Conventionally, an air conditioner has been equipped with "refrigerating and air conditioning technology" (Japan Refrigeration Society, January 20, 1988).
Some are equipped with a fan coil unit as disclosed on pages 385 to 387 of the first edition of the day). The fan coil unit has a fan and a cold / hot water coil, and is supplied with cold water generated by an evaporator or the like to cool the inside of the room, while being supplied with hot water generated by a condenser or the like to heat the inside of the room. There are things I try to do.

[0003]

DISCLOSURE OF THE INVENTION In the above-mentioned air conditioner, when the water piping of the fan coil unit is performed,
Conventionally, in addition to the main pipe, all of the branch pipes of the hot and cold water forward and return pipes and the drain pipe of the drain water are connected at the construction site. That is, the fan coil unit is arranged in the perimeter section, while the main pipe is arranged in the ceiling below the floor slab. The forward pipe, the return pipe, and the drain pipe have one end connected to the fan coil unit and the other end connected to the main pipe, and are covered with a heat insulating material such as glass wool.

However, this requires a great deal of labor for piping work, and has a problem in quality. That is, in general,
Since the fan coil unit is often arranged along the side wall of the window, a beam is located below the fan coil unit. Therefore, when performing water piping, it is necessary to avoid this beam, and
Since it is necessary to penetrate the floor slab, the number of bent portions increases, and piping work is required even for that portion.

In addition, since it is necessary to cover the forward pipe, the return pipe, and the drain pipe with a heat insulating material, it takes a long time for the piping work. Especially, in a large-scale building, many fan coils are required. Because we need to place the unit
There was a problem that a long construction period was required.

Further, since it is necessary to bend the forward pipe, the return pipe, and the drain pipe at a plurality of places, a joint such as an elbow is used, and there is a problem that quality control such as water leakage is difficult, and reliability is high. There was a problem of low sex.

The present invention has been made in view of the above point, and the forward pipe, the return pipe, and the drain pipe are unitized to simplify the piping work, and the piping work is shortened.
The purpose is to improve quality.

[0008]

Means for Solving the Problems In order to achieve the above object, the means taken by the present invention is to unitize a forward pipe, a return pipe, a drain pipe and at least a heat insulating material.

Specifically, the means taken by the invention according to claim 1 is intended for a heat insulating pipe unit for connecting the fan coil unit (30) and the main pipe (40). The forward and backward pipes (60) and (61) of the cold and warm water and the drain pipe (62) of the drain water are covered with the heat insulating material (53) with both ends exposed, and the forward pipe (6)
0), the return pipe (61) and the drain pipe (62) are integrally formed by at least the heat insulating material (53) to form a unit.

The means taken by the invention according to claim 2 is, in the invention according to claim 1, provided with a casing (70) formed in a box shape by a rigid plate, and the forward pipe is provided in the casing (70). (60) and return pipe (61) and drain pipe (62)
Are housed with both ends exposed, while the casing (70) is filled with a heat insulating material (53).

The means taken by the invention according to claim 3 is, in the invention according to claim 1 or 2, the horizontal pipe portion (51) arranged above the beam (23), and the horizontal pipe portion (51). Five
The vertical pipe portion (52) continuously penetrating the floor slab (24) on the lower surface of the one end portion in 1) is formed in a reverse L-shape in a side view.

Further, in the means of the invention according to claim 4, in the invention of claim 1, the forward pipe (60), the return pipe (61) and the drain pipe (62) are one pipe. The structure is formed by bending.

The means taken by the invention according to claim 5 is the casing (70) according to the invention of claim 2 above.
However, a horizontal case (71) whose lower surface is opened, a vertical case (72) whose upper surface and lower surface and one side surface are opened, a lower surface opening of the horizontal case (71) and a side surface opening of the vertical case (72). Is formed by an inverted L-shaped lid (73) that closes.

The means taken by the invention according to claim 6 is the casing (70) according to the invention of claim 2 above.
However, the flat case is formed by the horizontal case (71) and the lid (73).

Further, the means taken by the invention according to claim 7 is the invention according to claim 5 or 6, wherein the level adjusting member (80) is provided on the side surface of the corner portion of the horizontal case (71) in the casing (70). , 80, ...) are provided.

[0016] Further, the means taken by the invention according to claim 8 is the floor slab of the building (20), wherein the fan coil unit (30) is arranged above the beam (23) of the building (20). While the main pipe (40) is arranged below (24),
The fan coil unit (30) and the main pipe (40) are connected by a heat insulating pipe unit (50). Then, the heat insulation piping unit (50) includes the casing (70).
The forward and backward pipes (60) and the return pipe (61) of the hot and cold water and the drain pipe (62) of the drain water are housed in the inside of the casing with both ends thereof exposed, and the heat insulating material ( 53)
Are formed by filling. In addition, the heat insulation piping unit (50) includes a horizontal piping section (51) located above the beam (23) and a vertical piping section (52) penetrating the floor slab (24).
It is formed in an inverted L shape in a side view.

-Operation- According to the above-mentioned matters specifying the invention, in the present invention, first, the heat insulating pipe unit (50) is manufactured in a factory or the like. Specifically, in the invention according to claim 2 and claim 5, the horizontal case (71) is formed by bending an iron plate (sheet metal) which is a rigid plate.
After forming the vertical case (72) and the lid body (73), the horizontal case (71), the vertical case (72) and the lid body (73) are integrally fixed to produce the casing (70). . In the sixth aspect, the lid (73) is integrally fixed to the horizontal case (71) to manufacture the casing (70).

Further, the forward pipe (60), the return pipe (61) and the drain pipe (62) are, for example, in the invention according to claim 4,
It is formed by bending one pipe. Then, the forward pipe (60), the return pipe (61) and the drain pipe (62) are housed in the casing (70), and the casing (70) is filled with a urethane material or the like to form the heat insulating material (53). Then, the heat insulation piping unit (50) is completed in a factory or the like.

On the other hand, in the invention according to claim 8, for example,
At a construction site, a fan coil unit (30) is arranged in a room (2R), and a main pipe (40) is arranged in a ceiling below a floor slab (24). And the heat insulation piping unit (50) manufactured in the said factory is Claim 3.
In the invention according to (1), the horizontal pipe portion (51) is arranged on the upper surface of the beam (23) to escape the beam (23), while the vertical pipe portion (52) is passed through the floor slab (24). Then, the heat insulation piping unit (50) is fixed to the beam (23) and the like with anchor bolts and the like.

After that, one end of the forward and return pipes (60) of the cold and hot water and the drain pipe (62) of the heat insulation pipe unit (50) and the drain pipe (62) are connected to the fan coil unit (30). At the same time, the other end is connected to the main pipe (40).

In the invention according to claim 7, the level adjusting member (80, 80, ...) Adjusts the height of the casing (70).

[0022]

Therefore, according to the present invention, the outgoing pipe (60) for the hot and cold water and the return pipe (61) and the drain pipe (62) for the drain water are unitized, so that the piping work is extremely simplified. In addition to being able to improve the reliability of the quality.

That is, even if the fan coil unit (30) is positioned above the beam (23), the beam (23) can be easily avoided, so that the on-site work can be facilitated. it can. In particular, in order to escape the beam (23), the number of bent portions increases, and the labor of the work increases, but since this on-site work can be omitted, the piping work becomes extremely easy.

Further, the labor of the above-mentioned piping can be simplified, and since it is not necessary to cover the heat insulating material (53) on site, the construction period can be shortened. As a result, the entire construction work can be completed. The period can be shortened.

Further, since it is possible to manufacture in a factory or the like, it is possible to standardize the piping work, so that it is possible to ensure the stability of quality and also to unify the quality of the heat insulating material (53). Therefore, the heat insulating effect can be accurately exhibited.

According to the second aspect of the invention, since the rigid plate casing (70) is provided, sufficient strength can be provided. That is, the casing (7
0) Even if the feet of the desk or the like are located on the top, since it has sufficient strength, it does not require separate reinforcement, and water leakage does not occur.

A casing (70) capable of sheet metal processing
Since the forward pipe (60), the return pipe (61) and the drain pipe (62) can be unitized only by bending the pipe and filling the heat insulating material (53), units of various shapes are formed. Since it can be applied to various piping parts, it can be provided with wide versatility.

Further, according to the invention of claim 4, since the outward pipe (60), the return pipe (61) and the drain pipe (62) are manufactured and processed in the factory, one pipe is bent and formed. Since it is not necessary to use a joint such as an elbow on site as in the conventional case, quality control such as water leak can be surely performed, and reliability against water leak can be significantly improved. .

According to the invention of claim 7, since the level adjusting member (80, 80, ...) Is provided, the height of the casing (70) can be easily adjusted. Can be facilitated and the construction period can be shortened.

[0030]

Embodiment 1 of the present invention will be described below in detail with reference to the drawings.

As shown in FIGS. 1 and 2, reference numeral (10) is an air conditioner (10) for air conditioning the room (2R) of a building (20), which is a building, by using cold and hot water. It is equipped with a coil unit (30). The fan coil unit (3
Although not shown, 0) includes a heat exchanger, a fan, and a filter, and is configured so that cold / hot water is supplied to the heat exchanger to cool / heat the room (2R). The fan coil unit (30) is arranged in the perimeter part of the building (20) and has a side wall (2) having a window (21).
It is located along 2) and above the beam (23).

On the other hand, below the floor slab (24) of the building (20), that is, below the ceiling, the main pipe (40) of the air conditioner (10) is arranged, and the main pipe (40) is provided. Is
The cold and warm water outward main pipe (41) and the return main pipe (42) and the drain water drain main pipe (43) are arranged in parallel.

The floor slab (24) is provided with an OA floor (25) for wiring OA equipment (office automation equipment).

The fan coil unit (30) and the main pipe (40) are connected via a heat insulating pipe unit (50) which is a feature of the present invention.

The heat insulation piping unit (50) is shown in FIGS.
As shown in, a horizontal piping part (51) arranged on the upper surface of the beam (23) and a vertical piping part (29) continuously penetrating the floor slab (24) on the lower surface of one end of the horizontal piping part (51) ( 52) and is formed in an inverted L shape in a side view. The casing (70) is formed by accommodating the outward pipe (60), the return pipe (61) and the drain pipe (62) and filling the heat insulating material (53).

As shown in FIGS. 6 and 7, the casing (70) is composed of a horizontal case (71), a vertical case (72), and a lid (73) and is formed in an inverted L shape in a side view. , Is formed by bending an iron plate (sheet metal). The horizontal case (71) is formed in a horizontally long box shape with an open lower surface, and inward flanges (7a, 7a, ...) Are formed by bending at the periphery of the lower surface opening, and an outward pipe (60) is formed on the upper surface. ), The return pipe (61) and the drain pipe (62) are formed with through holes (7b, 7b, ...). In addition, the forward pipe (60) and the return pipe (61) are provided on one flange (7a) of the horizontal case (71), and the flange (7a) on the side where the vertical case (72) is mounted.
And the drain pipe (62) are in contact with and supported by the recesses (7c, 7c, ...)
On the other hand, L-shaped fixing pieces (7d, 7d, ...) Having elongated holes are attached to both side surfaces.

The vertical case (72) is formed in a vertically long box shape in which the upper and lower surfaces and one side surface are open, and inward flanges (7e, 7e, ...) Are formed in the upper surface opening and the side surface opening. , The upper flange (7e) on the side where the horizontal case (71) is mounted is provided with recesses (7f, 7f, ...) Abutting and supporting the outward pipe (60), the return pipe (61) and the drain pipe (62). Has been formed. The horizontal case (71) and the vertical case (72) are integrally fixed by screwing the flanges (7a, 7e, ...).

The lid (73) is a flat plate formed in an inverted L shape in a side view, and has flanges (7a, 7e, ...) Between the horizontal case (71) and the vertical case (72). Screwed to the bottom of the horizontal case (71) and the vertical case (7
2) The side opening is closed.

The forward pipe (60), the return pipe (61) and the drain pipe (62) are arranged and housed in parallel with each other inside the casing (70), and one pipe is bent and formed. Has been formed. The forward pipe (60), the return pipe (61) and the drain pipe (62) have a horizontal portion (63, 63, ...) That extends in the longitudinal direction of the horizontal case (71) and a vertical case (72) in the vertical direction. And a vertical portion (64, 64, ...)

Further, one end of each of the horizontal portions (63, 63, ...) Is bent upward and protrudes from the horizontal case (71) through the through holes (7b, 7b, ...) And the main body side connecting portion ( 65, 6
5, ...). In addition, the above vertical parts (64, 6
The lower ends of (4, ...) Project from the lower surface of the vertical case (72) and are provided with joints to form the pipe-side connection parts (66, 66, ...). Then, the main body side connection portion (65, 65,
(Not shown), screws are formed to connect the unit side pipes (31, 31, ...) Of the fan coil unit (30), while the pipe side connection parts (66, 66, ...) It is connected to the main pipe (40) by connecting pipes (44, 44, ...).

A blocking plug (6a, 6a, ...) made of a heat insulating material is attached to the main body side connecting portion (65, 65, ...) And is closely attached to the through hole (7b, 7b, ...). There is.

The heat insulating material (53) is made of hard urethane or the like, that is, it is formed by filling the casing (70) with a urethane material and heating and foaming.
The heat insulating material (53) is formed by filling the horizontal case (71) and then the vertical case (72) by a two-step forming method. During this formation, the lower surface opening of the vertical case (72) is closed by a jig. The heat insulating material (53) may be formed by filling the horizontal case (71) and the vertical case (72) once.

-Piping method of the heat insulating piping unit (50)-Next, the piping operation of the heat insulating piping unit (50) will be described.

First, the heat insulation piping unit (50) is manufactured in a factory. That is, in the factory, the casing (70) is formed, and the outward pipe (60) and the return pipe (61) are formed.
And the drain pipe (62) to form the heat insulation piping unit (5
0) will be manufactured. Specifically, an iron plate that is a rigid plate is bent and formed to form a horizontal case (71), a vertical case (72), and a lid (73), and then the horizontal case (7).
1) The vertical case (72) and the lid (73) are screwed together and fixed together to form a casing (70).

The forward pipe (60), the return pipe (61) and the drain pipe (62) are formed by bending one pipe. Then, the forward pipe (60) is placed in the casing (70).
And the return pipe (61) and the drain pipe (62) are stored.
The horizontal case (71) is filled with urethane material and heat-foamed to form the heat insulating material (53), and then the vertical case (72) is filled with urethane material and heat-foamed to form the heat insulating material (53). ing. At the time of this formation, the lower surface opening of the vertical case (72) is closed by a jig, and the main body side connection part (6
Block plugs (6a, 6a, ...) Are attached to 5,65, ...) to seal the through holes (7b, 7b, ...). The heat insulation piping unit (50) is manufactured by this.

On the other hand, at the construction site, the fan coil unit (30) is arranged in the room (2R), and the main pipe (40) is arranged on the ceiling below the floor slab (24). And the heat insulation piping unit manufactured in the factory (50)
Arranges a horizontal pipe part (51) on the upper surface of the beam (23) to escape the beam (23), while connecting a vertical pipe part (52) to the floor slab (2).
4) Further, the heat insulation piping unit (50) is fixed to the beam (2d) with anchor bolts (7d, 7d, ...).
3) Fix to etc.

After that, the main body side connection portions (65, 65, ...) Of the hot and cold water outward pipe (60), the return pipe (61) and the drain water drain pipe (62) in the heat insulating pipe unit (50) are connected. Unit side pipe (31, 3) of the fan coil unit (30)
1, ...), while the pipe side connection (66, 66,
…) Are the connecting pipes (44, 44,…) to the main pipe (40)
It will be connected by and the water piping work will be completed.

-Effect of the heat insulation piping unit (50) -Accordingly, according to the first embodiment, the outgoing pipe (60) of the cold and hot water, the return pipe (61) and the drain pipe (62) of the drain water are unitized. In addition, the piping work can be extremely simplified, and the reliability of quality can be improved.

In other words, even if the fan coil unit (30) is positioned on the beam (23), the beam (23) can be easily avoided, so that the work at the site can be facilitated. it can. In particular, in order to escape the beam (23), the number of bent portions increases, and the labor of the work increases, but since this on-site work can be omitted, the piping work becomes extremely easy.

Further, the labor of the above-mentioned piping can be simplified, and since it is not necessary to coat the heat insulating material (53) on site, the construction period can be shortened, and as a result, the entire construction work can be completed. The period can be shortened.

Since the forward pipe (60), the return pipe (61) and the drain pipe (62) are manufactured and processed in the factory,
Since it can be manufactured by bending a pipe of a book and it is not necessary to use a joint such as an elbow on site as in the conventional case, quality control such as water leak can be surely performed and water leak etc. The reliability can be extremely improved.

Further, since the heat insulation piping unit (50) can be manufactured in a factory, the piping work can be standardized, so that the quality can be stabilized and the heat insulation material (53) can be used. ), The quality can be unified, so that the heat insulating effect can be accurately exhibited.

Further, since the casing (70) of the rigid plate is provided, sufficient strength can be provided. In other words, even if the feet of the desk or the like are located on the casing (70), since it has sufficient strength, it does not require separate reinforcement, and water leakage does not occur. .

A casing (70) capable of sheet metal processing
Since the forward pipe (60), the return pipe (61) and the drain pipe (62) can be unitized only by bending the pipe and filling the heat insulating material (53), units of various shapes are formed. Since it can be applied to various piping parts, it can be provided with wide versatility.

Further, since the pipe is not visible because it is arranged under the OA floor (25), the construction work can be facilitated.

[0056]

Second Embodiment Next, a second embodiment of the present invention will be described. In this embodiment, as shown in FIGS. 8 to 10, the casing (70) in the first embodiment has a horizontal case (71). And instead of having a vertical case (72),
The casing (70) is composed of only the horizontal case (71) and the lid (73).

Specifically, the casing (70) is formed of a horizontally long horizontal case (71) having an open upper surface and a lid body (73) closing an upper surface opening of the horizontal case (71). The horizontal case (71) and the lid (73) are integrally fixed by screws. Then, the casing (7
The inside of (0) is filled with a heat insulating material (53).

The lid (73) is formed with through holes for the forward pipe (60), the return pipe (61) and the drain pipe (62), and the horizontal case (71) also has through holes. Are formed, and blocking plugs (6a, 6a, ...) that are in close contact with the through holes are attached to each of the outward pipe (60), the return pipe (61) and the drain pipe (62).

Further, the vertical portions (64, 64, ...) Of the forward pipe (60), the return pipe (61) and the drain pipe (62) are arranged in a staggered manner, that is, the forward pipe (60) is It is located closer to the central portion than the return pipe (61) and the drain pipe (62). Further, no joint is provided on the pipe side connection portion (66, 66, ...). Other configurations, operations, and effects are the same as those of the first embodiment.

[0060]

Third Embodiment Next, a third embodiment of the present invention will be described. In this embodiment, as shown in FIGS. 11 and 12, the casing (70) of the second embodiment has a level adjusting member (80). , 80, ...) are provided. That is, while the bag-shaped portions (7g, 7g) are formed on both sides of the casing (70), the level adjusting members (80, 80, ...) Have the bolts (81, 81, ...) And the double nuts (82). , 82, ...) and provided at both ends of the bag-shaped part (7g, 7g), and the bolts (81, 81, ...) Are rotated to make the upper surface of the casing (70) O.
It is designed to fit on the A floor (25).

Further, on the side surface and the upper surface of the casing (70), openings (7h, 7h,
7h, ...) is formed, the casing (70) is provided with fixing portions at the central portions on both sides thereof for fixing the casing (70) with anchor bolts or the like. The opening (7h, 7h, ...) is the casing (7
0) is formed.

The main body side connecting portions (65, 65, ...) Of the forward pipe (60), the return pipe (61) and the drain pipe (62) are arranged obliquely with respect to the casing (70). . That is, it is made to correspond to the unit side pipes (31, 31, ...) Of the fan coil unit (30).

Therefore, according to the third embodiment, since the level adjusting members (80, 80, ...) Are provided, the height of the casing (70) can be easily adjusted, which facilitates the work. And the construction period can be shortened. Other configurations, operations, and effects are similar to those of the second embodiment.

Although the level adjusting members (80, 80, ...) Are composed of bolts (81, 81, ...) And double nuts (82, 82, ..), they are not limited to these.

[0065]

Fourth Embodiment Next, a fourth embodiment of the present invention will be described. In this embodiment, as shown in FIGS. 13 and 14, the outward pipe (60) and the return pipe (61) in the third embodiment are shown. ) And the horizontal part (63, 63, ...) Of the drain pipe (62) are arranged in parallel, but are arranged so that they spread outward toward the vertical part (64, 64, ...). . The casing (70) is formed only by the horizontal case (71), and other configurations, operations, and effects are the same as those in the third embodiment.

[0066]

Fifth Embodiment of the Invention Next, a fifth embodiment of the present invention will be described. As shown in FIG.
A fixing band (6) is attached to the horizontal portions (63, 63, ...) Of the outward pipe (60), the return pipe (61) and the drain pipe (62) in the second embodiment.
b, 6b, ...) are provided. That is,
In the state before filling with the heat insulating material (53), the forward pipe (6
0), the return pipe (61) and the horizontal part (63, 6) of the drain pipe (62).
The fixing bands (6b, 6b, ...) are wound around the elastic bands (6c, 6c, ...) made of a heat insulating material, and the fixing bands (6b, 6b, ...) are wrapped around the casing (70). It is fixed to.

Therefore, according to the fifth embodiment, since the horizontal portions (63, 63, ...) Of the outward pipe (60), the return pipe (61) and the drain pipe (62) are fixed, the product accuracy is improved. As a result, the pipe construction can be facilitated. Other configurations, operations, and effects are similar to those of the second embodiment.

[0068]

Other Embodiments of the Invention In each of the above embodiments, the heat insulation piping unit (50) is provided with the casing (70). However, in the invention according to claim 1, the casing (70) is not necessarily provided. Absent. In other words, the forward pipe (60), the return pipe (61) and the drain pipe (62) may be integrally fixed only by the heat insulating material (53). In this case, the heat insulating pipe unit (50) requires strength. It can be applied when it is placed in a place that does not.

Further, the outward pipe (60), the return pipe (61) and the drain pipe (62) are formed in a substantially inverted L shape, but are bent so as to have a plurality of horizontal portions and vertical portions. Alternatively, conversely, only the straight pipe portion may be used. Therefore, the casing (70) may have only a horizontal portion or an inverted L shape, or may be bent so as to have a plurality of horizontal portions or vertical portions.

Further, the casing (70) of the first embodiment.
May be provided with a level adjusting member (80, 80, ...), and the outward pipe (60), the return pipe (61) and the drain pipe (62) of the first embodiment are arranged in a flared shape as shown in FIG. Or
The staggered arrangement as shown in FIG. 8 is optional.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional perspective view of a room showing an air conditioner.

FIG. 2 is a cross-sectional view showing a main part in a building.

FIG. 3 is a side view showing the heat insulation piping unit of the first embodiment.

FIG. 4 is a plan view showing a heat insulating piping unit according to the first embodiment.

FIG. 5 is a front view showing the heat insulation piping unit of the first embodiment.

FIG. 6 is a perspective view showing a casing according to the first embodiment.

FIG. 7 is an exploded perspective view showing the casing of the first embodiment.

FIG. 8 is a side view showing a heat insulation piping unit according to a second embodiment.

FIG. 9 is a plan view showing a heat insulation piping unit according to a second embodiment.

FIG. 10 is a front view showing a heat insulation piping unit according to a second embodiment.

FIG. 11 is a side view showing a heat insulation piping unit according to a third embodiment.

FIG. 12 is a plan view showing a heat insulation piping unit according to a third embodiment.

FIG. 13 is a plan view showing a heat insulation piping unit according to a fourth embodiment.

FIG. 14 is a front view showing a heat insulation piping unit according to a fourth embodiment.

FIG. 15 is a transverse cross-sectional view showing a heat insulating piping unit according to a fifth embodiment.

[Explanation of symbols]

 10 Air conditioner 20 Building 22 Side wall 23 Beam 24 Floor slab 30 Fan coil unit 40 Main piping 50 Insulation piping unit 51 Horizontal piping part 52 Vertical piping part 53 Insulation material 60 Outgoing pipe 61 Return pipe 62 Drain pipe 63 Horizontal part 64 Vertical part 70 Casing 71 Horizontal case 72 Vertical case 73 Lid 80 Level adjustment member

Claims (8)

[Claims] 1. A heat insulating pipe unit for connecting a fan coil unit (30) and a main pipe (40), comprising a hot and cold water outward pipe (60) and a return pipe (61) and a drain water drain pipe (62). ) And thermal insulation with both ends exposed (53)
The forward pipe (60), the return pipe (61) and the drain pipe (62) are covered with at least the heat insulating material (5).
An adiabatic piping unit characterized by being integrally formed as a unit by 3). 2. The heat insulating piping unit according to claim 1, further comprising a casing (70) formed of a rigid plate in a box shape, wherein the casing (70) includes a forward pipe (60) and a return pipe (61). A heat insulation piping unit, characterized in that the drain pipe (62) and the drain pipe (62) are housed with both ends exposed, while the casing (70) is filled with a heat insulating material (53). 3. The heat insulation piping unit according to claim 1, wherein the horizontal piping part (51) arranged above the beam (23) and the lower surface of one end of the horizontal piping part (51) are connected to each other. A heat insulation piping unit characterized by being formed in a more inverted L shape in a side view with a vertical piping part (52) penetrating the floor slab (24). 4. The heat insulation piping unit according to claim 1, wherein the outward pipe (60), the return pipe (61) and the drain pipe (62) are formed by bending one pipe. Insulation piping unit to be. 5. The heat insulation piping unit according to claim 2, wherein the casing (70) has a horizontal case (7) whose bottom surface is open.
1), a vertical case (72) whose upper and lower surfaces and one side surface are open, and an inverted L-shaped lid for closing the lower surface opening of the horizontal case (71) and the side surface opening of the vertical case (72). (7
3) A heat insulation piping unit characterized by being formed from 6. The heat insulating pipe unit according to claim 2, wherein the casing (70) is formed in a flat box shape by the horizontal case (71) and the lid body (73). unit. 7. The heat insulation piping unit according to claim 5 or 6, wherein level adjusting members (80, 80, ...) Are provided on the side surfaces of the corners of the horizontal case (71) of the casing (70). A heat insulation piping unit characterized by the above. 8. The fan coil unit (30) is arranged above the beam (23) of the building (20), and the main pipe (40) is provided below the floor slab (24) of the building (20). On the other hand, the fan coil unit (30) and the main pipe (40) are connected by a heat insulating pipe unit (50), and the heat insulating pipe unit (50) is provided inside the casing (70) with hot and cold water. The forward pipe (60), the return pipe (61) and the drain water drain pipe (62) are housed with both ends exposed, and the casing (70) is filled with a heat insulating material (53). The heat insulation piping unit (50) is formed so that the horizontal piping section (51) located above the beam (23) and the vertical piping section (52) penetrating the floor slab (24) are more L-shaped in a side view. An air conditioner provided with a heat insulating pipe unit characterized by being formed in a shape of a circle.