JP2004138135A - Air-conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air-conditioning system which has proper installation workability by simplifying a work of laying an air-conditioning unit. <P>SOLUTION: The air-conditioning system includes a supply port 6 for supplying a fluid, a plurality of air-conditioning pipe units 1 each having a return port 7 for returning the fluid, a circulating mechanism 21 having functions of supplying the fluid to the supply port and receiving the fluid from the return port, branching units 19, 20 connected to the mechanism, flexible supply pipes 16 having flexibility for connecting the units 19, 20 to the supply port 6, and flexible return pipes 17 having flexibility for connecting the units 19, 20 to the return port 7. Lengths of the pipes 16 previously connected to the respective pipe units are made equal and the lengths of the pipes 17 previously connected to the respective pipe units are made equal. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cooling and heating system in which a pipe unit for flowing a fluid for heat exchange is installed on a ceiling or a wall.
[0002]
[Prior art]
The pipe unit 1 for cooling and heating shown in FIG. 4 is connected between the main pipe 2 on the supply side and the main pipe 3 on the return side by a plurality of heat exchange pipes 5 turned back at the curved portion 4.
The supply side main pipe 2 is provided with a fluid supply port 6 at one end thereof, this fluid supply port 6 is connected to a pump via a supply flow path (not shown), and the other end is closed so as not to leak. .
[0003]
On the other hand, the return side main pipe 3 is closed at one end so as not to leak, and provided with a fluid return port 7 at the other end. The return port 7 is connected to the tank via a return channel (not shown).
Therefore, the fluid supplied from the supply side main pipe 2 exchanges heat with the heat exchange pipe 5 and returns to the tank via the return side main pipe 3.
[0004]
Since the heat exchange pipe 5 is thin and easily bent, the interval L tends to be non-uniform as it is. Therefore, the heat exchange pipes 5 are arranged at equal intervals by using the retainer 8.
[0005]
As shown in FIGS. 5 and 6, a plurality of such pipe units 1 may be installed behind a ceiling to form a cooling and heating system. FIG. 5 is a view of the pipe unit 1 installed above the ceiling from above, and FIG. 6 is a view of the pipe above the ceiling from the side. In FIG. 6, the boundary between the room where the pipe unit 1 is installed and the corridor is indicated by a dashed line, the individual pipe units are omitted, and the whole is indicated by a dashed line.
As shown in FIGS. 5 and 6, the supply port 6 of each pipe unit 1 is connected to the supply channel 9 via the connection pipe 13 and the joint 14, respectively, and each return port 7 is connected to the connection pipe 15 and the connection. 14 and is connected to the return flow path 10. Then, the supply port 11 of the supply flow path 9 and the return port 12 of the return flow path 10 are taken out from behind the ceiling, and the supply port 11 is connected to a pump discharge side of a fluid circulation device (not shown). Is connected to the tank side.
[0006]
The reason why each pipe unit 1 is connected in parallel to the supply flow path 9 and the return flow path 10 is to make the temperature of the fluid supplied to each pipe unit 1 uniform. . For example, when a plurality of pipe units are connected in series, the temperature of the fluid supplied to the pipe unit 1 gradually decreases as the distance from the discharge side of the pump increases.
[0007]
In FIG. 5, the supply port 6 is represented by a white circle and the return port 7 is represented by a black circle so that the positions of the supply port 6 and the return port 7 of each pipe unit 1 are easily understood. Actually, since the supply channel 9 and the return channel 10 are located above the supply port 6 and the return port 7, the supply port 6 and the return port 7 are not visible from above. The supply port 11 and the return port 12 are opened in a space that can be easily connected to a fluid circulation device, such as the ceiling of a corridor. In addition, the piping as shown in FIGS. 5 and 6 is actually performed, but the literature is not searched for such piping. Therefore, there is no known prior art document relating to the present invention.
[0008]
[Problems to be solved by the invention]
As described above, when laying the pipe unit 1 behind the ceiling, the work of connecting the supply port 6 and the supply flow path 9 of the pipe unit 1 and the work of connecting the return port 7 and the return flow path 10 are performed. It must be made. Actually, a large number of connection pipes 13 are attached to the supply ports 6 and the joints 14 by welding or screws, and further, a large number of connection pipes 15 are attached to the return port 7 or the joints 14 by screws or screws. The work of connecting the supply flow path 9 and the return flow path 10 is troublesome and troublesome. In particular, piping work performed in a narrow work space such as a space above a ceiling is extremely difficult, and takes time and effort. Moreover, since there are many connection points such as the connection pipes 13 and 15 and the joint 14, there is a high possibility that fluid leaks from the connection points.
[0009]
Therefore, there is a problem that it takes a very long time even for an operator who has become a plumbing worker to perform a reliable connection. Further, if fluid leakage occurs from the seam after actually starting use, it is necessary to perform work again above the ceiling.
An object of the present invention is to provide a cooling and heating system which simplifies the work of laying a pipe unit for cooling and heating and has good laying workability.
[0010]
[Means for Solving the Problems]
A first invention provides a plurality of cooling / heating pipe units each having a supply port for supplying a fluid, and a return port for returning the fluid, and supplying a fluid to the supply port and a fluid from the return port. Circulating mechanism having a function of receiving the circulating mechanism, a branching device connected to the circulating mechanism, a flexible supply pipe connecting the branching device and the supply port, a flexible supply pipe, the branching device and the return port, And a flexible return pipe having flexibility. The present invention is characterized in that the length of the flexible supply pipe previously connected to each pipe unit is made equal, and the length of the flexible return pipe previously connected to each pipe unit is made equal.
[0011]
According to a second aspect of the present invention, the branching device is connected to a flexible supply pipe and a flexible return pipe via a joint consisting of a plug and a socket. On the side, there is a feature that a socket of a joint provided with a seal member therein is provided.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 3 show a cooling and heating system according to an embodiment of the present invention.
The pipe unit for cooling and heating used in the cooling and heating system of this embodiment is the same as that of the conventional example, so the pipe unit 1 of FIG. 4 is used.
However, in the pipe unit 1 of this embodiment, as shown in FIG. 1, a flexible supply pipe 16 having flexibility is joined to the supply port 6 of the supply side main pipe 2, and the return of the return side main pipe 3 is returned. The port 7 is also joined with a flexible return pipe 17 having flexibility. Since these flexible pipes 16 and 17 are fixed to the supply port 6 and the return port 7 in advance and brought to the construction site, there is no need to perform pipe connection work at the construction site, so that it is easy. is there.
[0013]
Further, the flexible supply pipes 16 connected to all the supply ports 6 have the same length. The flexible return pipes 17 joined to all the return ports 7 have the same length. These lengths are approximately equal to or slightly longer than the distances from the branching devices 19 and 20 to the supply port 6 and the return port 7 of the pipe unit 1 farthest from each other.
A plug 18 of a joint is connected to each flexible supply pipe 16 and an end of the flexible return pipe 17. This joint is a joint for connecting branching devices 19 and 20 to be described later to the flexible supply pipe 16 and the flexible return pipe 17.
[0014]
The branching device 19 is a device that collectively connects the flexible supply pipes 16 of the pipe unit 1 to a fluid circulation device 21 that is a circulation mechanism of the present invention. This is a device for connecting the return pipes 17 together to the circulation device 21. The fluid circulating device 21 supplies fluid from each flexible supply pipe 16 to each pipe unit 1 via the branching device 19 and receives fluid returned from the pipe unit 1 via the flexible return pipe 17. It has.
In this embodiment, the fluid circulating device 21 has a function of supplying fluid and a function of receiving return fluid in one device. In addition, the fluid circulating device 21 may be provided with a mechanism for cooling or heating the fluid.
However, the circulation mechanism of the present invention may be configured by, for example, a tank that receives a fluid, and a pump that is provided at a location separated from the tank and supplies the fluid.
[0015]
As shown in FIG. 3, a socket 22 that forms a joint together with the plug 18 is attached to the branching device 19. That is, when the plug 18 is pushed into the socket 22, the two are connected and the plug 18 does not come off due to the stopper mechanism in the socket 22. However, when the release ring (not shown) of the socket 22 is shifted in the opposite direction to the plug 18, the stopper mechanism is released, and the plug 18 can be pulled out.
On the other hand, similarly to the branching device 19, the socket 22 is attached to the branching device 20, and the plug 18 of the flexible return pipe 17 is connected thereto.
[0016]
FIG. 2 shows a state in which a plurality of pipe units 1 each having the flexible supply pipe 16 and the flexible return pipe 17 are installed above the ceiling as described above. In FIG. 2, the supply port 6 of each pipe unit 1 is represented by a white circle, and the return port 7 is represented by a black circle. A dashed line L is a boundary between the space above the ceiling and the maintenance space S.
The maintenance space S is a space where the branching devices 19 and 20 are installed, and is a space where pipe connection work and maintenance of each device can be easily performed, for example, behind a ceiling in a corridor.
[0017]
Note that the maintenance space S does not have to be provided outside a room such as a corridor, and the branching devices 19 and 20 can be installed in a part of the ceiling behind the pipe unit 1 to provide a maintenance space. . However, in that case, it is necessary to provide an inspection port or the like so that the pipe connection status can be checked from the room or the branching devices 19 and 20 can be maintained. Alternatively, a space for installing the branching devices 19 and 20 may be provided indoors or near the wall of a corridor. In addition, in this embodiment shown in FIG. 2, the fluid circulation device 21 is installed in the maintenance space S on the corridor side together with the branching devices 19 and 20, but the fluid circulation device 21 is installed underground or outdoors. , Anywhere.
[0018]
The procedure for installing such a cooling and heating system will be described below.
First, a required number of pipe units 1 are laid below the ceiling. Then, the flexible supply pipe 16 and the flexible return pipe 17 joined to each pipe unit 1 are drawn out to the maintenance space S on the corridor side.
Next, each plug 18 of the flexible supply pipe 16 is connected to the socket 22 of the branching device 19 installed in the maintenance space S, and the plug 18 of the flexible return pipe 17 is connected to the socket 22 of the branching device 20. I do.
[0019]
When all the flexible supply pipes 16 are connected to the branching device 19 and all the flexible return pipes 17 are connected to the branching device 20, each of the branching devices 19, 20 is connected to the fluid supply device 21. This completes the air conditioning system.
Since the flexible supply pipes 16 are all equal in length, and the flexible return pipes 17 are all equal in length, the flow path resistance from the fluid supply device 21 to each pipe unit 1 is different. Are equal. Therefore, there is no variation in the flow rate and the flow velocity of the fluid supplied from the fluid circulation device 21 to each pipe unit 1, and the fluid having the same temperature is supplied.
[0020]
In addition, since all the flexible supply pipes 16 are equal, the flexible supply pipe 16 of the pipe unit 1 having a short distance to the branching device 19 has an extra length. In S, it may be wound and wound.
The same applies to the flexible return pipe 17.
As described above, the system of the present invention eliminates the need for complicated piping work when laying a pipe unit as in the related art. Therefore, workability is improved and work time can be reduced. Furthermore, there is no fear that fluid leaks from the connection point.
[0021]
Further, in the above embodiment, the joint socket 22 is provided on the branching device 19, 20 side, and the plug 18 is provided on the flexible supply pipe 16 and the flexible return pipe 17 side. Normally, since the seal member is provided in the socket 22, when the seal member is damaged or deteriorated due to long-term use, the branching devices 19 and 20 may be replaced.
If a socket 22 is provided in place of the plug 18 in the flexible supply pipe 16 or the flexible return pipe 17 and the sealing member provided therein is broken, the flexible pipes 16 and 17 are removed. Even the pre-connected pipe unit 1 must be replaced, but this is not necessary in this embodiment.
[0022]
When the seal member is attached to the outer periphery of the plug, the replacement of the seal member is easy, but it is not preferable because the seal member is easily dropped or damaged. However, in that case, the breakage of the seal can be dealt with by providing either the socket 22 or the plug 18 on the branching devices 19, 20 side.
In this embodiment, the pipe unit 1 shown in FIG. 4 is used, but the pipe unit is not limited to this. For example, the supply main pipe 2 and the return main pipe 3 may be opposed to each other in a parallel position, or the main pipes 2 and 3 may be coaxially connected. But it doesn't matter. Further, it is also possible to use a pipe unit in which the main pipes 2 and 3 and the heat exchange pipe 5 are integrated with a heat insulating material to form a panel.
[0023]
Further, in the above-described embodiment, an example in which the pipe unit 1 is installed behind the ceiling has been described. However, a paneled pipe unit may be installed as a ceiling material.
Of course, it can be installed on the wall, floor, etc., as well as on the ceiling, for cooling and heating. Regardless of where it is used, the workability is good and the merit of easy construction is the same.
[0024]
【The invention's effect】
According to the first and second aspects of the present invention, complicated piping work is not required at the time of installing the pipe unit. Accordingly, the workability is good, and even a person who does not have the skill in piping can perform the construction work in a short time.
According to the second aspect, it is possible to easily cope with a case where the seal member of the joint between the branching device and the flexible pipe is broken after the pipe unit is installed.
[Brief description of the drawings]
FIG. 1 is a front view of a pipe unit according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a state where a pipe unit of the cooling and heating system according to the embodiment is installed on a ceiling.
FIG. 3 is a diagram showing a connection portion between the branching device of the embodiment and a flexible supply pipe.
FIG. 4 is a plan view of a conventional pipe unit.
FIG. 5 is a top view of a state in which a pipe unit of a conventional cooling and heating system is installed on a ceiling.
FIG. 6 is a side view showing a state in which a pipe unit of a conventional cooling and heating system is installed on a ceiling.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pipe unit 2 Supply side main pipe 3 Return side main pipe 6 Supply port 7 Return port 16 Flexible supply pipe 17 Flexible return pipe 18 Plug 19 Branching device 20 Branching device 21 Fluid circulation device 22 Socket

Claims (2)

A plurality of pipe units for cooling and heating provided with a supply port for supplying the fluid and a return port for returning the fluid, and a circulation having a function of supplying the fluid to the supply port and receiving the fluid from the return port A mechanism, a branching device connected to the circulation mechanism, a flexible supply pipe connecting the branching device and the supply port, and a flexible connection connecting the branching device and the return port. And a flexible return pipe having the same length of the flexible supply pipe pre-connected to each pipe unit and the same length of the flexible return pipe pre-connected to each pipe unit. . A branching device, a flexible supply pipe and a flexible return pipe are connected via a joint consisting of a plug and a socket, and a plug of a joint is provided on the pipe side; The cooling and heating system according to claim 1, further comprising a joint socket provided with a seal member.

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