JP2897003B2 - Sprinkler-fire extinguishing equipment piping method and sprinkler-fire extinguishing equipment piping - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sprinkler.
The present invention relates to a fire extinguishing equipment piping method and a sprinkler-fire extinguishing equipment piping.

[0002]

2. Description of the Related Art Fire extinguishing systems using sprinklers are very effective for initial fire extinguishing, and are therefore used for high-rise buildings, theaters,
In addition to buildings that are required to be installed under the Fire Service Law, such as departures, it is desirable to install them in places where fires are likely to occur or in general houses. 2. Description of the Related Art A method of directly connecting a closed-type sprinkler head to a water pipe in order to save a large amount of equipment cost such as a large-capacity water tank and a water supply pump for the sprinkler equipment has been conventionally known. For example, as shown in an overhead perspective view of a fire extinguishing system in one dwelling unit in FIG. 5, a branch pipe 102 branched from a water pipe 101 is drawn into a kitchen 103, for example, and a water tap 104 is provided. Each sprinkling area (range) where the sprinkler head 105 needs to be installed, for example, the kitchen 103, the living room 106, the French room 10
7. A generally loop-shaped pipe 11 which sequentially passes through the bedrooms 108, 109, the bathroom 110, etc. and returns to the kitchen 103 at the end.
1 is formed. In order to arrange the sprinkler head 105 at the most effective location in each sprinkling area, the pipe 111 passed through each sprinkling area must be bent.

FIG. 6 is a system diagram of a sprinkler fire extinguishing system used in a conventional building or the like. A branch pipe 121 is connected to a fire extinguishing water main pipe 120 from a fire extinguishing water tank (not shown). Branch pipes 124 to 128 are connected via a T-shaped joint 122 and a cross joint 123,
A sprinkler head 129 is connected to the tip of the 28. Each of the branch pipes 124 to 128 is selected and connected to various types of pipes with a diameter corresponding to the amount of fire extinguishing water required on the end side.

[0004]

As described above, in the conventional sprinkler-fire extinguishing system, a single pipe 111 branched from a water pipe is sequentially passed through each sprinkling area, so that there are many bent parts. In addition, joint portions such as elbows and union joints are required at the bent portions, and therefore, piping work is troublesome and expensive, and there is a high risk of water leakage due to the large number of the joints. In sprinkler fire extinguishing equipment, in particular, expensive piping work and water leakage are extremely disadvantageous. Also, conventional sprinklers for buildings, etc.
In fire extinguishing equipment, each pipe is prepared for each pipeline with different diameters, and various types of joints are prepared for these different pipelines.
It is necessary to prepare a large number of them, and it is necessary to connect these various kinds and a large number of pipes and joints, and preparation and piping work for this are very troublesome. The present invention has been proposed to solve the above problems of the sprinkler fire extinguishing system. The sprinkler fire extinguishing system can reduce the risk of water leakage and the equipment cost by minimizing the joints in the middle of the piping. The purpose of the present invention is to obtain a piping method for equipment and a pipe for fire extinguishing equipment.

[0005]

Means for Solving the Problems] The present invention in order to solve the above problems, water supply for the water supply pipe 16 of the fire extinguishing water
So that the plurality of branch pipes 18 intersect each other.
A plurality of branch pipes 18 are branched from the pipes, a plurality of branch pipes 18 for water supply are crossed and branched, and a sprinkler fire extinguishing equipment piping method in which a sprinkler head 14 is attached to the branch pipe 18, wherein each of the branch pipes 18 Without directly attaching the sprinkler head 14, the header 21 provided with the water inlet at the upstream portion and provided with at least two or more water outlets at the peripheral side portion has a predetermined interval for each block. After that, the sprinkler head 14 is attached to each of the water outlets of the header 21 via a branch pipe 24 which is a deformable flexible pipe.
This is a piping method for a sprinkler fire extinguishing facility, wherein the sprinkler fire extinguishing equipment is characterized in that the sprinkler heads 4 are arranged on the back surface of the ceiling plate 50 with a small number of bends, and a plurality of sprinkler heads 14 are arranged and constructed at arbitrary positions.

[0006] In addition, the sheet for the water supply pipe 16 of the fire extinguishing water
Water supply piping so that a plurality of branch pipes 18 for water intersect
A plurality of branch pipes 18 are branched from the branch pipe 16 , and each branch pipe 18 is provided with a water inlet at an upstream portion and a header 21 having at least two or more water outlets at a peripheral side portion.
Are connected at predetermined intervals for each block, and the sprinkler head 14 is attached to each of the water outlets of the header 21 via a branch pipe 24 that is a flexible tube that is freely deformable. The plurality of sprinkler heads 14 are configured to be arranged at any positions via the branch pipes 24. Further, the branch pipes 24 are arranged with a small number of bends along the back surface of the ceiling plate 50. It is a pipe of a sprinkler fire extinguishing equipment characterized by having the following.

[0007]

According to the invention of the piping method and the piping invention of the above construction, the header-21 is connected to each of the branch pipes 18 at a predetermined interval for each block. If the sprinkler head 14 is attached to the water port via the branch pipe 24 which is a flexible pipe, and the branch pipe 24 is attached to the back surface of the ceiling plate 50 and disposed at an arbitrary position with a small number of bends. It will be good. That is, header-21
Is used, at least two or more sprinkler heads 14 can be connected to the branch pipes 18, so that the number of branch pipes 1 corresponding to the large number of sprinkler heads 14 is increased.
8 becomes unnecessary, and the number of pipes is greatly reduced. Header
The water outlets 21 are appropriately selected and the branch pipes 24 which are flexible pipes are selected.
By connecting the sprinkler head 14 to this water outlet, the sprinkler head 14 can be arranged at any desired position.
Has a simple pipe shape with a small number of bends without being restricted by the arrangement position of the other sprinkler heads 14. As a result, the number of joints is reduced, and the risk of water leakage is reduced, and equipment costs are reduced.

[0008] All branch pipes 24 have a header side at the base side.
Since the pipes 21 are connected at a fixed position, the piping work is simplified, and the construction cost is reduced. Moreover, branch pipe 2
4 is arranged with a small number of bends on the back surface of the ceiling plate 50, so that the branch pipe 24 can be easily arranged. In spite of the water pressure fluctuations appearing at the time of damage, the flexibility of the branch pipe 24 is helped to prevent damage such as leakage of the joint due to vibration.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described.
The case where it is used for an apartment house will be described with reference to the drawings. FIG. 1 is an overall perspective view of a sprinkler fire extinguishing system disposed in one dwelling unit, for example, and FIG. 2 is a sprinkler of FIG.
It is a front schematic diagram which shows the state which applied the fire extinguisher to the apartment house. The water flowing into the receiving tank 4 from the water main 3 is pumped into the elevated water tank 2 on the roof of the apartment house 1 by the pump 5, and the water in the elevated water tank 2 passes through the water supply pipe 7 via the check valve 6. Each dwelling unit 8 is branched by a pipe 9 and supplied with water by a faucet 10. On the other hand, the water in the elevated water tank 2 is pressurized by a pressurized water supply unit 13 comprising an auxiliary water tank 11 having a ball tap and a boost pump 12 (the elevated water tank 2).
If the head of the dwelling unit 8 on the top floor has a drop of, for example, 10 m or more, the boost pump 12 is unnecessary), and the water supply pipe 1 for fire extinguishing via the check valve 15 is provided.
6 is connected to an end test valve 17 for testing whether the pressurized water supply unit 13 automatically starts normally at the end of the first floor.

When such a piping system is used, the water supply pipe system 7 and the fire extinguishing water supply pipe system 16 are separated by the ball tap of the auxiliary water tank 11, so that the fire extinguishing water flows to the drinking water. No contamination of drinking water. When the boost pump 12 is started due to opening of the sprinkler head 14 and the water in the auxiliary water tank 11 decreases, the ball tap operates to automatically supply the water in the elevated water tank 2 to the auxiliary water tank 11 and fire extinguishing water. Will be secured. A branch pipe 18 is connected to a water supply pipe 16 at each dwelling unit 8 which is one block of the apartment house, and a water control valve 19 is connected to the branch pipe 18.
An electromagnetic valve type on / off control valve 20 which is normally closed and a header-21 are sequentially connected.

In the kitchen, living room, bedroom, bathroom, etc., which are watering areas in the dwelling unit 8, a closed sprinkler head 14 and a fire detector 23 near each sprinkler head 14 are provided. Be placed. Each sprinkler head 14 is independently connected to a distal end of a branch pipe 24 which is a flexible pipe via a joint 25.
The water inlet at the upstream part of the header-21 is connected to the branch pipe 18, and the base end of the branch pipe 24 is connected to two or more water outlets provided in the header-21 via a joint 26 such as a union. Have been. When a plurality of sprinkler heads 14 are provided in the same room, the fire detector 2
3 may be provided one for a plurality of sprinkler heads 14. The water control valve 19, the opening / closing control valve 20, and the header-21 are conveniently installed in a device box containing a switchboard, a gas meter, and the like provided in the dwelling unit 8 or on a pipe shaft or the like. Valve 19
The control panel 27 is installed near the like.

The control panel 27 includes a control circuit 28, an alarm bell 29 for notifying the opening operation of the on / off control valve 20, an alarm lamp 30, and a release switch for closing the opened on / off control valve 20. 31 are provided. Each fire detector 23
Is connected to a control circuit 28 by a wiring 32, and the opening / closing control valve 20 is connected to the control circuit 28 by a wiring 33. All of the fire detectors 23 operate earlier than all of the sprinkler heads 14 in each of the watering areas or a plurality of watering areas. The control circuit 28 is configured to be opened by the sensing operation of the sensor 23.

In the living room or the like of the dwelling unit 8, a housing information panel 35 provided with an interphone 34 used for communication with the outside of the entrance is provided. Control circuit 28 and alarm bell 3 by wiring 37
6 is connected, and the operation of the alarm bell 36 is notified by a wiring 38 to a central monitoring panel (not shown) for centrally monitoring the dwelling units 8. The branch pipe 24 is a pipe using a flexible pipe and having good piping work, such as a polyethylene pipe or a polybutene pipe which is lightweight and has high strength and excellent temperature characteristics.

The joint 25 connecting the sprinkler head 14 to the branch pipe 24 is constituted by an elbow 39 and a union 40 on the distal side, and is constituted by a T-joint 41 and a union 40 at an intermediate position. As shown in FIG. 3 and a side view of a longitudinal section of a main part, respectively, a ceiling beam 43 is fixed to the ceiling beam 43 by a fixture 42. Example mounting fixture 42
The vertical piece 44 is provided with long holes 45 at the top and bottom, and the horizontal piece 46 is fixed to the ceiling beam 43 using an insert 47, and the elbow 39 is mounted on the mounting surface 48. The elbow 39 and the sprinkler head 14 are fixed to the ceiling beam 43 by adjusting the mounting position of the piece 44 in the vertical direction along the elongated hole 45 and tightening the mounting screw 49. The tip portion of the sprinkler head 14 looks into the sprinkling area (range) 52 at a predetermined height.
As a result, the branch pipe 24 is arranged on the back surface of the ceiling plate 50 with a small number of bends.

Reference numeral 53 denotes a protective cap which is attached to the distal end of the elbow 39 by a screw means or the like, and protects the sprinkler head 14 from construction work such as the ceiling panel 50. After the interior work is completed, the protective cap 5
3 will be removed from the elbow 39 and a cosmetic plate will be attached instead. The sprinkler head 14 is suitable for a house with a high sensitivity and a small amount of water.
3 uses a constant temperature spot type, but various types such as an ionization type, a photoelectric type, and a differential type can be used.

Next, the operation of the above equipment will be described. In a normal state in which the fire detector 23 does not operate, the open / close control valve 20 is closed, and the header-21, the branch pipe 24, and the sprinkler
The head 14 has no pressurized water, and is in the same state as a so-called dry sprinkler, or is in a non-pressurized state even if water exists in the branch pipe 24. In this state, when a fire occurs in a certain watering area (range) and the fire detector 23 performs a sensing operation, the opening / closing control valve 20 opens via the control circuit 28, and the boost pump 12 is activated to activate the auxiliary water tank. The water 11 is supplied to the branch pipe 18 through the water supply pipe 16 at an appropriate pressure, and the water in the branch pipe 18 is supplied to the respective branch pipes 24 and the sprinkler head 14 through the header 21.

At the same time as the opening / closing control valve 20 is opened, the alarm lamp 30 of the control panel 27 is turned on, the alarm bell 29 is sounded,
The alarm bell 36 of the house information panel 35 in the dwelling unit 8 also sounds, and a central monitoring panel (not shown) is notified as a warning state. The sprinkler head 14 is ready for water discharge, and at the same time, a signal indicating the valve opening control of the open / close control valve 20 is received from the control circuit 28 on the house information panel 35. From the display of the alarm 36 of the panel 35, it is possible to immediately know that the alert state, that is, the opening / closing control valve 20 has opened and the sprinkler fire extinguishing system is ready to start fire extinguishing, and promptly respond to the above alert state. I can respond,
Can handle fires. The opening operation of the open / close control valve 20 accompanying the fire detection operation of the fire detector 23 is reported to the central monitoring panel by the reporting means 38, which is convenient for security management of the dwelling unit 8. Further, when the fire spreads and the temperature rises, the fusible alloy of the sprinkler head 14 in the water sprinkling area melts and opens, and the water in the branch pipe 24 is released from the sprinkler head 1.
4 and fire extinguishing.

At this time, the sprinkler head 14, the joints 25 and 26, etc. try to dance due to the large fluctuation of the water pressure.
3 and the joint 26 is fixed by the header 21. Therefore, the joints 25 and 26 and the joints of the branch pipes 24 are subjected to a water pressure fluctuation that appears at the time of, for example, the start of water discharge or the end of water discharge. The joints 25 and 26 do not vibrate on the sides 25 and 26, and the joints 25 and 26 are not subjected to excessive force due to the flexibility of the branch pipe 24. Is prevented.

And manually releasing the alert state and
Stopping the sprinkler head 14 from discharging water can be easily performed by turning on a release switch 31 provided on the control panel 27. When the release switch 31 is turned on, the opening / closing control valve 20 is closed, and the alarm lamp 30 is turned on.
And the alarm bells 29 and 36 stop and return to the standby state. Sprinkler head 1 when not alert
Even when the object 4 is opened due to a collision with an object, the opening / closing control valve 2
Since 0 is closed, water is not discharged. Therefore, even if the tip of the sprinkler head 14 is erroneously impacted and opened, the water will not be discharged, so that no water damage accident occurs, and ordinary people enter and exit. Suitable for fire extinguishing equipment for houses.

The water control valve 19 and the on-off control valve 20 are
The water control valve 19 and the opening / closing control valve 20 are installed because the housing 8 is installed in an equipment box or a pipe shaft section that houses a switchboard, a gas meter, or the like that is installed outside, for example, on the entrance side. Therefore, there is no waste as occupying a new space, and the water control valve 19 and the opening / closing control valve 20 can be easily operated from outside without inconveniencing the resident of the dwelling unit 8, which is convenient for maintenance. Has become.

In the above embodiment, the description has been given of the case of an apartment house. However, the present invention can be applied to a detached house, a building and the like. In the case of a building or the like, a header-21 for each floor or for each block on each floor according to the area thereof.
And the sprinkler head 14 provided in each sprinkling area may be connected by the branch pipe 24. By using the header-21, it is not necessary to prepare and use a large number of branch pipes 24 and different diameter joints having different diameters as in the past, and piping errors are eliminated, and piping workability is greatly improved.

In addition, since the header 21 is used, at least two or more sprinkler heads 14 can be connected to the branch pipe 18, so that the number of branch pipes 18 corresponding to the number of sprinkler heads 14 is unnecessary. Becomes
The number of pipes is greatly reduced. By appropriately selecting each water outlet of the header-21 and connecting the branch pipe 24 which is a flexible pipe to this water outlet, the sprinkler head 14 can be arranged at a desired arbitrary position, and each branch pipe can be disposed. 24 has a simple piping shape with a small number of bends without being restricted by the arrangement position of the other sprinkler heads 14. As a result, the number of joints is reduced, and the risk of water leakage is reduced, and equipment costs are reduced. Since all the branch pipes 24 are connected at a position where the base side is united by the header 21, the piping work is simplified and the construction cost is reduced.

Since a flexible pipe is used as the branch pipe 24 and the sprinkler head 14 is disposed via the header 21, the header 21 is attached to each of the branch pipes 18 by a plurality of sprinklers. Each block composed of heads 14 (for example, four sprinkler heads 14 as shown in FIG. 1)
The sprinkler head 14 is attached to each of the water outlets of the header 21 via a flexible branch pipe 24, and the sprinkler head 14 is connected to the water outlet of the header 21. 24 may be arranged at an arbitrary position with a small number of bends by being attached to the back surface of the ceiling plate 50.

In addition, since the branch pipe 24 is arranged with a small number of bends along with the back surface of the ceiling plate 50, the work of arranging the branch pipe 24 can be performed easily. For example, even if there is a fluctuation in water pressure that appears at the start of water discharge or the end of water discharge, the flexibility of the branch pipe 24 is helped to prevent damage such as leakage of the joint due to vibration. And all branch pipes 2
4 can have the same diameter, which can be expected to have the effect of eliminating selection errors and connection errors in piping work, and further reduce the risk of water leakage, thereby reducing sprinklers.
It became suitable as fire extinguishing equipment.

[0025]

As described above, the piping method of the sprinkler and the fire extinguishing equipment and the piping of the sprinkler and the fire extinguishing equipment according to the present invention have the following effects. That is, the branch pipe 18
Are connected at predetermined intervals for each block (sprinkling area) to each of the sprinklers. Thereafter, the sprinklers are connected to the water outlets of the header 21 via the branch pipes 24 which are flexible pipes. -At the same time as the head 14 is mounted, the branch pipe 24 may be disposed at an arbitrary position with a small number of bends while being attached to the back surface of the ceiling plate 50. And header-21
Is used, at least two or more sprinkler heads 14 can be connected to the branch pipes 18, so that the number of branch pipes 1 corresponding to the large number of sprinkler heads 14 is increased.
8 becomes unnecessary, and the number of pipes is greatly reduced. Header
The water outlets 21 are appropriately selected and the branch pipes 24 which are flexible pipes are selected.
By connecting the sprinkler head 14 to this water outlet, the sprinkler head 14 can be arranged at any desired position.
Has a simple pipe shape with a small number of bends without being restricted by the arrangement position of the other sprinkler heads 14. As a result, the number of joints is reduced, and the risk of water leakage is reduced, and equipment costs are reduced.

All branch pipes 24 have a header side at the base side.
Since the pipes 21 are connected at a fixed position, the piping work is simplified, and the construction cost is reduced. Moreover, branch pipe 2
4 is arranged with a small number of bends on the back surface of the ceiling plate 50, so that the branch pipe 24 can be easily arranged. In spite of the water pressure fluctuations appearing at the time of damage, the flexibility of the branch pipe 24 is helped to prevent damage such as leakage of the joint due to vibration.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a sprinkler-fire extinguishing system as one embodiment of the present invention.

FIG. 2 is a schematic front view showing a state where the sprinkler-fire extinguishing system of FIG. 1 is applied to an apartment house.

FIG. 3 is a longitudinal sectional front view of a main part showing an attached state of a sprinkler head in the embodiment of FIG. 1;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a perspective view showing an example of a conventional sprinkler-fire extinguishing facility.

FIG. 6 is a perspective view showing another example of the conventional sprinkler-fire extinguishing equipment.

[Explanation of symbols]

 14 Sprinkler head 16 Water supply pipe 18 Branch pipe 21 Header 24 Branch pipe 50 Ceiling plate

Claims (2)

(57) [Claims] 1. A method for the water supply for the water supply pipe 16 of the fire extinguishing water
So that the plurality of branch pipes 18 intersect each other.
A plurality of branch pipes 18 are branched from the pipes, and a sprinkler fire extinguishing system is mounted on the branch pipes 18. The sprinkler fire extinguishing equipment piping method includes: An inlet is provided,
In addition, a header 21 having at least two or more water outlets on the peripheral side is connected at predetermined intervals for each block, and thereafter, a deformable flexible pipe is connected to each of the water outlets of the header 21. The sprinkler head 14 is attached via the branch pipe 24, and the branch pipe 24 is arranged on the back surface of the ceiling plate 50 with a small number of bends, and the plurality of sprinkler heads 14 are arranged at arbitrary positions. A sprinkler fire extinguishing system piping method characterized by being constructed. 2. The method of claim 1] for the water supply for the water supply pipe 16 of the fire extinguishing water
So that the plurality of branch pipes 18 intersect each other.
From a plurality of branch pipes 18 and each branch pipe 18
Is connected to a header 21 provided with a water inlet at an upstream portion and at least two water outlets at a peripheral side at a predetermined interval for each block, and The sprinkler head 14 is attached to each of the water outlets through a branch pipe 24 which is a deformable flexible pipe.
Moreover, the plurality of sprinkler heads 14 are connected to the branch pipe 2.
4. A sprinkler fire extinguisher characterized in that the branch pipe 24 is arranged with a small number of bends along with the back surface of the ceiling plate 50. Equipment plumbing.