JP2942916B2 - Fire extinguishing equipment for apartment houses - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguishing system suitable for an apartment house.

[0002]

2. Description of the Related Art Fire extinguishing systems using sprinklers are very effective in extinguishing fires at the beginning, so high-rise buildings, theaters,
In addition to buildings that must be installed under the Fire Service Law, such as department stores, it is desirable to install them in places where fires are likely to occur or in general houses. A method of directly connecting a closed 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 is conventionally known. For example, as shown in a bird's-eye perspective view of a fire extinguisher in one dwelling unit in FIG. 4, a water pipe 101 is drawn into a kitchen 103 by a branch pipe 102 branched from a water pipe 101, and a water tap 104 is provided. Each sprinkling area (range) requiring installation of a sprinkler head 105, for example, kitchen 103, living room 106,
A substantially loop-shaped pipe 111 is formed, which sequentially passes through the space 107 between the Buddha, the bedrooms 108 and 109, the bathroom 110, etc., and returns to the kitchen 103 at the end.

[0003]

As described above, in a conventional fire extinguishing system for a house sprinkler, the sprinkler heads 105 are provided on the pipes 111 branched from the water pipe, respectively, for inspection and maintenance of the sprinkler heads 105. The piping 111 is provided with a water control valve (not shown). Such a water control valve is installed separately from the water control valve of the water pipe. However, in order to prevent the operation of the water control valve from stopping the use of the water supply, especially in the apartment house, the resident needs the water control valve. It is necessary to make sure that the operation is not annoying. The present invention
The present invention has been proposed to solve the above-mentioned problems of fire extinguishing equipment for an apartment house, and aims to provide a fire extinguishing apparatus for an apartment house that is convenient for maintenance such as operation of a water control valve.

[0004]

According to the present invention, a sprinkler head 14 is provided at a dwelling unit 8 of a condominium 1 and a water supply pipe is connected to the sprinkler head 14 of the dwelling unit 8. A branch pipe 18 for supplying fire extinguishing water is provided from the branch pipe 18.
Is provided with a water control valve 19, and the water control valve 19 is installed in a device box portion for storing a meter or the like installed at an outside entrance of the dwelling unit 8 or the like. It is a fire extinguishing system for houses.

[0005] In the fire extinguishing system for an apartment house according to claim 1, the sprinkler head 14 is connected to a branch pipe 24, and the branch pipe 24 is connected to a header 21 which can be connected to a plurality of branch pipes 24. Branch pipe 18
It is characterized by being connected to.

Further, in the fire extinguishing system for an apartment house according to claim 1 or 2, a fire detector 23 is provided in the dwelling unit 8 provided with the sprinkler head 14, and a branch pipe 18 of the dwelling unit 8 is provided.
Further, an opening / closing control valve 20, which is controlled to open when the fire detector 23 detects a fire, is provided.

According to a third aspect of the present invention, there is provided a fire extinguishing system for an apartment house, wherein the opening / closing control valve 20 is installed in an equipment box portion of the dwelling unit 8.

In the fire extinguishing system for an apartment house according to claim 4, the fire detector 23 includes a control circuit 28 for controlling the opening and closing of the open / close control valve 20 when the fire detector 23 detects a fire.
And the control circuit 28 is connected to the on-off control valve 20.

According to a fifth aspect of the present invention, there is provided a fire extinguishing system for an apartment house, wherein the control circuit is provided near the on-off control valve.

[0010]

According to the first aspect of the present invention, a sprinkler head is provided at a dwelling unit of the apartment house, and the dwelling unit is provided with a branch for supplying fire extinguishing water to the sprinkler head of the dwelling unit from a water supply pipe. A pipe 18 is provided, and a water control valve 19 is provided in the branch pipe 18.
9 is installed in an equipment box portion for storing a meter and the like installed outside the entrance of the dwelling unit 8 and the like, so that waste such as occupying a new space for installing the water control valve 19 is avoided. There is no. In addition, since the water control valve 19 provided in the equipment box portion of the dwelling unit 8 can be easily operated from outside without disturbing the occupants of the dwelling unit 8, it is convenient for maintenance and water discharge can be stopped. It will be easier.

According to a second aspect of the present invention, the sprinkler head 14 is connected to a branch pipe 24, the branch pipe 24 is connected to a header 21 that can be connected to a plurality of branch pipes 24, and the header 21 is connected to the branch pipe 18. Configuration,
Each branch pipe 24 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. 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 facilitated and the construction cost is reduced. The length of the branch pipe 24 for each sprinkler head 14 was shorter and the pressure loss was smaller than in a conventional facility that did not use a header.

According to a third aspect of the present invention, a fire detector 23 is provided on the dwelling unit 8 provided with the sprinkler head 14,
The branch pipe 18 of the dwelling unit 8 is provided with the opening / closing control valve 20 that is controlled to open when the fire detector 23 detects a fire. Then, the opening / closing control valve 20 is controlled to open, and the sprinkler head 14 is filled with water, and a warning state is set. When there is no fire detection operation, even if the sprinkler head 14 is erroneously opened due to an impact or the like, the opening / closing control valve 20 does not open, so that water is not sprayed, and a water damage accident is prevented.

According to the fourth aspect of the present invention, since the opening / closing control valve 20 is installed in the equipment box portion of the dwelling unit 8, a waste of occupying a new space for installing the opening / closing control valve 20. In addition, the open / close control valve 20 can be easily operated from outside without inconveniencing the resident of the dwelling unit 8.

According to a fifth aspect of the present invention, when the fire detector 23 detects a fire, the open / close control valve 20 is provided.
Is connected to a control circuit 28 for controlling the valve opening of the
Is connected to the on / off control valve 20, so that the fire detector 23 can be easily connected and wired to the on / off control valve 20 by the control circuit 28.

According to a sixth aspect of the present invention, since the control circuit is provided near the opening / closing control valve, the control circuit is installed together with the opening / closing control valve outside the dwelling unit. The control circuit 2 is located from the outside without disturbing the resident of the dwelling unit 8 located
8 inspection and maintenance.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings when applied to an apartment house. FIG. 1 is an overall perspective view of a sprinkler fire extinguishing system arranged in one dwelling unit, for example, and FIG. 2 is a schematic front view showing a state in which the sprinkler extinguishing system of FIG. 1 is applied to an apartment house. Apartment house 1
The water flowing into the receiving tank 4 from the water main 3 is pumped into the elevated water tank 2 on the rooftop by the pump 5, and the water in the elevated water tank 2 passes through the clean water pipe 7 via the check valve 6, and is supplied to each dwelling unit. 8
The water is branched by a pipe 9 and supplied 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 including an auxiliary water tank 11 having a ball tap and a boost pump 12 (the drop between the elevated water tank 2 and the sprinkler head 14 of the dwelling unit 8 on the top floor is reduced). For example, 10
m or more, the boost pump 12 is unnecessary), sent to the fire extinguishing water supply pipe 16 via the check valve 15, and at the end of the first floor, whether or not the pressurized water supply unit 13 automatically starts normally Is connected.

If such a piping system is used, the water supply pipe 7 system and the fire extinguishing water supply pipe 16 system are separated by the ball tap of the auxiliary water tank 11, so that the fire extinguishing water flows around the drinking water. Drinking water is not contaminated. When the boost pump 12 is activated 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 secure fire extinguishing water. become. Each dwelling unit 8
A branch pipe 18 is connected to a water supply pipe 16, and a water control valve 19, a solenoid valve type opening / closing control valve 20 which is normally closed, and a header 21 are sequentially connected to the branch pipe 18.

A closed sprinkler head 14 and a fire detector 23 near each sprinkler head 14 are arranged in the kitchen, living room, bedroom, bathroom, etc., which are watering areas in the dwelling unit 8, respectively. You. Each sprinkler head 14 is independently connected to the distal end of the branch pipe 24 via a joint 25. A few sprinkler heads 14 approaching each other are connected to a branch pipe 24 by a joint 25 in series with each other.
The proximal ends of these branch pipes 24 are connected to the header 21 via a joint 26 such as a union. In addition,
When a plurality of sprinkler heads 14 are provided in the same room, one fire detector 23 may be provided 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. A control panel 27 is installed near the control panel.

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 the fire detectors 23 are used to operate earlier than all the sprinkler heads 14 for each watering area or for each of a plurality of watering areas. The control circuit 28 is configured to open by the sensing operation of the container 23.

In the living room of the dwelling unit 8, there is provided a house information panel 35 provided with an interphone 34 used for communication with the outside of the entrance and the like. 37, the control circuit 28 and the alarm bell 3
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 at the distal end, and is constituted by a T-joint 41 and a union 40 at an intermediate position. As shown in FIG. Elongated holes 45 are provided in the upper and lower portions of the installation piece 44, and the horizontal piece 46 is fixed to the ceiling beam 43 using an insert 47.
The elbow 39 and the sprinkler head 14 are fixed to the ceiling beam 43 by adjusting the mounting position of the standing piece 44 on the mounting surface 48 of the mounting 9 in the vertical direction along the elongated hole 45 and tightening the mounting screw 49. From the cutout hole 51 of the plate 50, the tip end of the sprinkler head 14 looks into the watering area (range) 52 at a predetermined height.

Reference numeral 53 denotes a protective cap attached to the distal end of the elbow 39 by a screw or a screw means, 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 elbow 39 and a cosmetic plate will be attached instead. The sprinkler head 14 is preferably a high-sensitivity, small-water-volume type in the case of a house.
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 opening / closing control valve 20 is closed and the header 21, the branch pipe 24 and the sprinkler head 14 have no pressurized water, and are in the same state as a so-called dry sprinkler, or There is no pressure even if there is water inside. 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, the boost pump 12 is activated, and the auxiliary water tank 11 is activated. 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 filled into the branch pipe 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. Thereby, the resident can immediately and intensively know the operation of the fire detector 23 in the dwelling unit 8, and can respond promptly to the occurrence of a fire. The opening operation of the opening / closing 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 sprinkling area melts and opens, and the water in the branch pipe 24 is released from the sprinkler head 14.
And fire is extinguished. At this time, the sprinkler head 14, the joint 25, and the like try to dance due to the large fluctuation of the water pressure. However, since the joint 25 and the joint 25 side of the branch pipe 24 are fixed to the building member 43 by the fixture 42,
For example, the joint 25 and the branch 25 side of the branch pipe 24 do not vibrate even when receiving water pressure fluctuations that appear at the start of water discharge or the end of water discharge, so that damage such as leakage of the joint 25 due to vibration is prevented. Is done.

Then, the warning state is manually released, 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. In addition, by closing the water control valve 19, inspection and maintenance of the connection point of the sprinkler head 14 and the branch pipe 24 can be easily performed. Even when the sprinkler head 14 is opened when the object is not alert, the opening / closing control valve 20 remains closed, so that no water is discharged, and therefore, the tip of the sprinkler head 14 is erroneously impacted. It is suitable for residential fire extinguishing facilities where no water loss accidents occur and water intrusion and occupation of ordinary people occurs even when the water is opened.

The sprinkler head 14 of the dwelling unit 8 is connected to a branch pipe 18 provided in a water supply pipe 16, and the branch pipe 18 is provided with a water control valve 19 and an opening / closing control valve 20. Inspection and maintenance of the fire extinguishing equipment can be performed without inconvenience to the occupants due to the operation of the opening / closing control valve 20. Since the water control valve 19 and the opening / closing control valve 20 are installed in an equipment box or a pipe shaft portion that houses a switchboard or a gas meter, for example, which is installed outside the dwelling unit 8, for example, at the entrance, etc. Water valve 19,
There is no waste such as occupying a new space for the installation of the open / close control valve 20, and the water control valve 19 and the open / close control valve 20 can be easily operated from outside without inconveniencing the resident of the dwelling unit 8. , Which is convenient for maintenance.

The sprinkler heads 14 are connected to the header 21 by individual branch pipes 24, respectively.
Each branch pipe 24 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 branches 2
Since the base 4 is 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. The length of the branch pipe 24 for each sprinkler head 14 was shorter and the pressure loss was smaller than in the conventional equipment without a header. Furthermore, all branch pipes 24
Can have the same diameter, and the effect of eliminating connection errors in piping can be expected.

In the case of the embodiment, since a flexible pipe is used as the branch pipe 24, connection work using joints at an intermediate portion of the branch pipe 24 is completely different from a conventional pipe using a hard pipe. It becomes unnecessary, and the piping work is almost completed simply by connecting the base side of the branch pipe 24 to the header 21 and the end side to the sprinkler head 14, which is extremely simple, and the risk of water leakage is further reduced. As a result, the fire extinguishing system for homes became suitable.

[0029]

As described above, according to the present invention, the following effects can be obtained. That is, according to the first aspect of the invention, the sprinkler head 14 of the dwelling unit 8 is connected to the branch pipe 18 provided in the water supply pipe 16, and the branch pipe 18 is provided with the water control valve 19, and the water control valve 19 is connected to the branch pipe 18. Since it is installed in the equipment box portion installed on the outside entrance of the dwelling unit 8, there is no waste in occupying a new space for the installation of the water control valve 19, and furthermore, the equipment box of the dwelling unit 8 is not used. The water control valve 19 provided in the portion can be easily operated from the outside without inconvenience to the resident of the dwelling unit 8, and a fire extinguishing system for an apartment house which is convenient for maintenance can be provided.

According to the second aspect of the present invention, the sprinkler heads 14 are connected to the header 21 by individual branch pipes 24, and each branch pipe 24 is restricted by the arrangement position of the other sprinkler heads 14. Without this, a simple piping shape with a small number of bends is obtained. 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. The length of the branch pipe 24 for each sprinkler head 14 was shorter and the pressure loss was smaller than in the conventional equipment without a header. Further, all branch pipes 24 can be made to have the same diameter, and there is no connection error in the piping, so that it is possible to provide a residential sprinkler fire extinguishing equipment which is convenient for construction and inexpensive in equipment cost.

According to the third aspect of the present invention, the fire detector 23 is provided in the dwelling unit 8 provided with the sprinkler head 14, and the fire detector 23 is provided in the branch pipe 18 of the dwelling unit 8.
Control valve 20 that is controlled to open when a fire is detected
When the fire detector 23 does not detect a fire, the sprinkler head 1
Even if 4 is erroneously opened due to an impact or the like, the opening / closing control valve 20 does not open, so that water is not sprayed, a water damage accident is prevented, and a fire extinguishing facility for a dwelling house in which habitability is not impaired can be provided.

According to the invention of claim 4, the on-off control valve 20
Is installed in the equipment box portion of the dwelling unit 8, so that there is no waste in occupying a new space for installing the open / close control valve 20.
It is possible to easily operate the open / close control valve 20 from outside without inconveniencing the resident, and to provide fire-extinguishing equipment for an apartment house which is convenient for maintenance.

According to the invention of claim 5, the fire detector 23
Is connected to a control circuit 28 for controlling the opening and closing of the open / close control valve 20 when the fire detector 23 detects a fire, and the control circuit 28 is connected to the open / close control valve 20. It is possible to provide a fire extinguishing system for an apartment house in which the heater 23 can be easily connected and wired to the opening / closing control valve 20 by the control circuit 28.

According to the invention of claim 6, the control circuit 28
Is provided in the vicinity of the opening / closing control valve 20, so that the control circuit 28 is located together with the opening / closing control valve 20 in a device box portion installed outside the dwelling unit 8. It is possible to provide a fire extinguishing system for an apartment house that is convenient for inspection and maintenance of the control circuit 28 from outside without inconveniencing the residents of the apartment.

[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 perspective view showing one example of a conventional sprinkler fire extinguishing system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Apartment house 8 Dwelling unit 14 Sprinkler head 16 Water supply piping 18 Branch pipe 19 Water control valve 20 Opening / closing control valve 23 Fire detector 24 Branch pipe 28 Control circuit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A62C 35/00-37/50

Claims (6)

(57) [Claims] 1. A sprinkler head 14 is provided at a dwelling unit 8 of an apartment house 1, and a branch pipe 18 for supplying fire extinguishing water from a water supply pipe 16 to the sprinkler head 14 of the dwelling unit 8 is provided at the dwelling unit 8. , The branch pipe 18
Is provided with a water control valve 19, and the water control valve 19 is installed in a device box portion for storing a meter or the like installed at an outside entrance of the dwelling unit 8 or the like. Residential fire extinguishing equipment. 2. The sprinkler head 14 is connected to a branch pipe 24, the branch pipe 24 is connected to a header 21 that can be connected to a plurality of branch pipes 24, and the header 21 is connected to the branch pipe 18. The fire extinguishing system for an apartment house according to claim 1. 3. A dwelling unit 8 provided with a sprinkler head 14 is provided with a fire detector 23, and a branch pipe 1 of the dwelling unit 8 is provided.
8. The fire extinguishing system according to claim 1, further comprising an opening / closing control valve that is controlled to open when the fire detector detects a fire. 9. 4. The fire extinguishing system for an apartment house according to claim 3, wherein the opening / closing control valve 20 is installed in an equipment box portion of the dwelling unit 8. 5. The fire sensor 23 is connected to a control circuit 28 that controls the opening and closing of the open / close control valve 20 when the fire sensor 23 detects a fire. The fire extinguishing system for an apartment house according to claim 4, wherein the fire extinguishing system is connected. 6. The fire extinguishing system according to claim 5, wherein the control circuit is provided near the on-off control valve.