JPH03143460A - Sprinkler device for residence - Google Patents

Abstract

PURPOSE:To prevent a pipe line from dewing, water leak and freezing and perform fire fighting even in the stoppage of electricity by interposing a main valve opened and closed on the basis of a fire detecting signal and opened in the stoppage of electricity between a water service piping and the pipe line and further providing a drain valve in a drain pipe connected on the way of the pipe line. CONSTITUTION:A sprinkling mechanism 15 is constituted of a main valve 11, pipe line 12, sprinkling head 13 and sensor 14 mounted on the ceiling surface of a residence which are sequentially connected to a water service piping 1 through joints 10. The main valve 11 is a solenoid valve opened and closed by a controller section 20 to be closed in current supply and allowed to introduce water into the pipe line 12 in the stoppage of current supply. This sprinkling mechanism 15 is provided with a drain mechanism 17 to drain tap water confined in the pipe line 12. Namely, a drain valve 27 is connected to another branch pipe (drain pipe) 26 extending from a cross joint 21. The drain valve 27 is a solenoid valve opened and closed by the controller section 20 similarly to the main valve 11, so that the pipe line 12 communicaties to the downstream side of the drain valve 21 to drain from the distal end of the branch pipe 26.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a sprinkler device that detects the occurrence of a fire indoors and discharges tap water, and is particularly suitable for use in a residential sprinkler system suitable for use in a detached house. - Regarding equipment.

[Prior Art] Conventionally, a sprinkler system that detects the occurrence of a fire indoors early and sprays fire water has been constructed by connecting a pressurizing pump to a tank in which fire extinguishing water is stored in advance. A structure is known in which fire extinguishing water is pumped from a pump to a water spray head installed on the ceiling of a building.

However, sprinklers using such pressure pumps
The problem with this device is that when it is installed, a tank and a pressurizing pump must be installed in the basement of a building, making the cost extremely high.

For this reason, its use is exclusively limited to large-scale buildings,
It was difficult to popularize it for use in general single-family homes.

Recently, sprinkler systems for use in general homes, in particular, have been provided that have a simple structure in which a pipe line communicating with a sprinkler head is directly connected to a water supply pipe, thereby eliminating the need for a pressure pump and a tank. Two examples will be explained below with reference to FIGS. 3 and 4.

The first sprinkler system shown in FIG. 3 directly connects one end of a pipe 2 installed in the attic (as shown) to the water pipe 1 inside the house, and connects any part of this pipe 2 to the water pipe 1 inside the house. It is made up of a plurality of sprinkler heads 3 that are exposed indoors from the ceiling surface, and a thermal fuse (as shown) installed in the sprinkler heads 3.
The water sprinkling ports of each water sprinkling head 3 are opened by fusing as the room temperature rises due to the outbreak of a fire, and as a result, the tap water supplied via the pipe 2 is discharged from the water sprinkling head 3 into the room. It has become so.

Moreover, the second sprinkler device shown in FIG. The sprinkler head 3 is equipped with a check valve 4 that prevents water from flowing, and the fact that the water spray head 3 opens and discharges water when the thermal fuse of the water spray head 3 is blown is different from the above-mentioned first sprinkler system. Although it is similar, there is an advantage that the accumulated water (dead water) in the pipe line 2 does not flow into the water pipe 1.

[Problems to be Solved by the Invention] By the way, each of the conventional sprinkler devices described above has the following drawbacks.

In other words, in both the first and second sprinkler systems described above, the pipe line 2 is kept filled with tap water at all times, so the attic will not be flooded due to condensation in the pipe line 2 or water reaching the pipe. There is a possibility that it will happen. In addition, there is a risk that the pipeline 2 may freeze and be damaged in the winter, so it is necessary to take some countermeasures.

In addition, these sprinkler devices stop the discharge of tap water into the room using the so-called closed sprinkler head 3 itself, which opens when the thermal fuse breaks, so it is difficult to clean the room. It also has the disadvantage that even if the door 3 is accidentally damaged during water spraying, tap water will leak into the room.

Furthermore, with the above-mentioned conventional sprinkler system, when it becomes necessary to add more sprinkler heads 3 due to an extension, etc., it is necessary to close off the main valves of the water supply pipes 1, The disadvantage was that it had a strong influence on

This invention was made against this background, and there is no risk of flooding in the attic due to condensation or leakage of pipes, or water is sprayed indoors due to damage to the sprinkler head, and it is also possible to add more sprinklers. It is an object of the present invention to provide a residential sprinkler system that can be easily adapted.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a water sprinkling head that opens when the room temperature rises due to a fire, is arranged at a position facing the interior of a house, and this water sprinkling head This is a residential sprinkler system that is connected to the water pipes of the water pipes and the pipes through pipes, in which a detector for detecting the occurrence of a fire is installed in the room, while the water pipes and the pipes are A main valve that opens and closes based on the fire detection signal output from the sensor and opens in the event of a power outage is interposed between the pipes, and a base end of a drain pipe with an open tip is inserted in the middle of the pipe. Connected to this drain pipe, connect the distal end and proximal end inside the drain pipe! It is equipped with a drain valve that shuts off the water.

[Operation] According to the above configuration, in normal times when a fire does not occur, the main valve is closed to prevent tap water from flowing into the pipe. This prevents condensation, water leakage, and freezing of the pipes, and at the same time prevents water from being discharged indoors due to damage to the sprinkler head.

On the other hand, in the event of a fire, the main valve is opened in response to a fire detection signal from the sensor, allowing tap water to flow into the pipe and supplying tap water to all sprinkler heads. As a result, tap water is sprayed only from the water spray head, which opens as the room temperature rises due to the fire, and the fire is extinguished.

In addition, during a power outage, the main valve is opened and tap water flows into the pipeline, and if a fire breaks out in this state, tap water will be sprayed only from the sprinkler head, which opens as the room temperature rises, and the fire will be extinguished. It will be done.

Furthermore, if the power is restored without a fire occurring and tap water is trapped in the pipe due to blockage of the main valve, the drain valve can be opened and the tap water in the pipe can be drained. The inside of the pipeline can be restored to its normal state.

Further, even when adding a water supply, by closing the main valve, only the inflow of tap water into the pipe can be prevented without affecting the flow of tap water in the water pipe itself.

Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, in this embodiment, a main valve 11, a conduit 12, and a water supply pipe 13 are connected to a residential water pipe 1 through a joint 10 in order, and a water supply pipe 13 is installed on the ceiling of the house. A water sprinkling mechanism 15 is configured, which serves as a basic sensor 14, and a water leakage detection mechanism 16, a drainage mechanism 17, a water pressure monitoring mechanism 18, and an oil fire extinguishing mechanism 19 are attached to this water sprinkling mechanism 15. Furthermore, a control section 20 for controlling each mechanism 15 to 19 is provided to constitute a sprinkler system.

Here, the above-mentioned joint IO is provided with a branch part 10a to which the above-mentioned main valve 11 is connected at the apex of an internal flow path forming an inverted U shape, and from the above-mentioned internal flow path to the mouth of the branch part 10a. By making the overall length of the branch portion 10a significantly shorter than that of a normal T-shaped joint, stagnant water, so-called dead water, does not occur within the branch portion 10a.

The water sprinkling mechanism 15 is adapted to lead tap water from the joint 10 and discharge it indoors from the sprinkling head 13 in response to the outbreak of an indoor fire. The water sprinkler rad 13 and the sensor 14 will be explained respectively.

The main valve 11 is a solenoid valve that is opened and closed by operating current supplied from the control unit 20 . This main valve 11 is of a type that closes when energized, and only when the built-in fill is energized by energization, the internal valve body is driven in the direction of closing the flow path and the water pipe 1 From pipe line 12
When the inflow of tap water into the pipe line 12 is blocked and the energization to the other coil is stopped, the internal flow path is maintained in an open state and the inflow of tap water into the pipe line 12 is allowed. There is.

The pipe line 12 also includes a main pipe 12a that runs from the outflow side of the main valve 11 to the attic through the wall of the house, and an upper pipe 1
The branch pipe 12b branches from the pipe 2a, and the tip of each branch pipe 12b extends to the ceiling of each room in the house except the kitchen.

The sprinkler head 13 is attached to the ceiling of a room other than the kitchen of the house, and is connected to each rear end i1+11 or to the tip of the branch pipe 12b or any arbitrary location.

Each of these sprinkler heads 13 is a so-called closed type sprinkler head that is equipped with a thermal fuse that blows out due to the heat generated during a fire. Under normal conditions, the water sprinkling port on the tip side is closed by the action of the thermal fuse, and the thermal fuse is closed. The water sprinkling port opens when the main valve 11 and the pipe line 12 are fused, and tap water supplied through the main valve 11 and the pipe line 12 can be discharged into the room.

The sensor I4 is installed one on the ceiling of each room where the sprinkler rad 13 is installed, and is configured to sense the heat in the event of a fire in each room and send a fire detection signal to the control unit 20. It has become.

A cross joint 21 is provided in the middle of the main pipe 12a, and the water leakage detection mechanism 1 is connected via this cross joint 21.
6 and a drainage mechanism 17 are connected to the conduit 12.

The water leakage detection mechanism 16 is provided to detect damage to the pipe line 12 or the water spray head 13, and is provided with a pressure valve 23 at the tip of one branch pipe 22 extending from the cross joint 21.
A cylinder 24 filled with inert gas is connected through the cross joint 21, and a pressure sensor 25 for detecting the pressure inside the pipe line 12 is disposed at the cross joint 21.

The pressurizing valve 23 is a solenoid valve that is opened and closed by the operating current supplied from the control unit 20, similar to the above-mentioned main valve 11,
The opening/closing operation causes the gas inside the cylinder 24 to flow out into the pipe line 12 or to be confined within the cylinder 24.

Moreover, the pressure sensor 25 measures the pressure of the gas flowing out into the pipe line t2 when the pressurizing valve 23 is opened, and sends a predetermined pressure signal to the control section 20 according to this pressure value. Note that the inert gas to be filled into the cylinder 24 includes carbon dioxide gas, etc.

Sogas etc. can be used.

On the other hand, the drainage mechanism 17 is provided to drain the tap water confined within the pipe line 12, and is connected to the other branch pipe (drain pipe) 26 extending from the cross joint 21.
A drain valve 27 is connected to the drain valve 27. Drain valve 27
is the control unit 2 in the same way as the main valve 11 and the pressurizing valve 23 described above.
This is an electromagnetic valve that opens and closes according to the operating current supplied from the drain valve 27, and when the drain valve 27 is opened, the pipe line 1
2 and the downstream side of the drain valve 21 communicate with each other, so that tap water is drained from the unillustrated tip of the branch pipe 26.

The water pressure monitoring mechanism 18 is provided to detect a drop in the water pressure in the water pipe 1, and detects the water in the water pipe 1 by a pressure sensor 29 attached to the water pipe 1 via a joint 28. It detects pressure, converts it into a pressure signal, and outputs it to the control section 20.

The oil fire extinguishing system n, structure 9 is for extinguishing oil fires that occur in the kitchen, and includes a fire extinguishing cylinder 30 filled with an extinguishing agent for oil fires, and an injection jet installed on the ceiling of the kitchen. It is generally composed of a nozzle 31 and a conduit 32 that connects the fire extinguishing cylinder 30 and the injection nozzle 31. Here, the injection nozzle 31 is configured to open when the thermal fuse blows out, similar to the water spray nozzle 13, and the opening of the injection nozzle 31 causes the extinguishing agent in the fire extinguishing cylinder 30 to be injected into the kitchen. It has become.

Further, a pressure gauge 33 is attached to the fire extinguishing cylinder 30. This pressure gauge 33 detects the pressure of the extinguishing agent filled from the extinguishing horn 30 to the jet nozzle 31, and sends a predetermined pressure signal to the control unit 20 as the extinguishing agent pressure in the pipe line 32 decreases. Output.

The control unit 20 controls the operating current supplied to the main valve 11, the pressurizing valve 23, and the drain valve 27 to control the opening and closing operations thereof, and also controls the opening and closing operations of each of the mechanisms 15 to 16.
It processes the signals output from the sensor I4, the pressure sensors 25 and 29, and the pressure gauge 33 and issues a predetermined alarm.

Further, the control section 20 is provided with a control panel 20a. The control panel 20a is provided with a power switch 34 for turning on and off the power of the entire device and a power monitor lamp 35 for checking the energization state, as well as a fire detection signal from the sensor 14 and a pressure gauge 33 of the fire extinguishing cylinder 30. an alarm buzzer 36 that emits an alarm sound in response to the pressure signal; a fire warning light 37 that lights up in response to the fire detection signal; and a water leakage warning that lights up based on the pressure signal output from the pressure sensor 25 of the water leakage detection mechanism 16. A water pressure warning light 39 that lights up based on the pressure signal output from the pressure sensor 29 of the water pressure monitoring mechanism 18, and an oil fire light that lights up based on the pressure signal output from the pressure gauge 33 of the oil fire extinguishing mechanism 19. A warning light 40 and a fire extinguisher pressure warning light 41 that lights up based on the pressure signal from the pressure sensor 25 are provided.

Next, the operation of the sprinkler system constructed as described above will be explained with reference to FIG. 2.

In the sprinkler system of this embodiment, its operation differs depending on whether a predetermined operating current is supplied to the control section 20 (step St).

Therefore, in the following explanation, the explanation will be made separately for the case of energization and the case of power outage.

(1) During energization When the predetermined operating current lj is supplied to the control unit 20, unless a fire detection signal is output from the sensor 14,
The main valve 11 is maintained in a closed state by the operating current supplied from the control unit 20, and tap water is prevented from flowing into the pipe line 12.

In this state, the entire device is in monitoring mode (stunned,
In this monitoring mode, the controller 20 controls the sensor 1
Whether or not a fire detection signal is outputted from 4 is always monitored preferentially (steps S1, S2, S3).

When a fire detection signal is output, several mechanisms 15 are activated to extinguish the fire.
Under normal conditions where no fire occurs, water leak detection processing is performed between the control unit 20 and the water leak detection mechanism 16, water pressure monitoring processing is performed between the water pressure detection mechanism 18, and oil fire detection processing is performed between the oil fire extinguishing mechanism 19. Alarm processing is performed. Each of these processes will be explained below.

(Water Sprinkling Process) The water sprinkling process is started by activating the water sprinkling mechanism 15 when a fire detection signal is output from the sensing word 14 in response to the occurrence of a fire in the room (step S2).

That is, when the sensor 14 detects a fire in the room and outputs a fire detection signal, first, the alarm buzzer 36 provided on the control panel 20a of the control unit 20 is energized to emit an alarm sound. At the same time, the fire warning light 37 is energized to turn on the fire warning light 37 (step S4).
Then, the supply of operating current to the addition 1F valve 23 and the drain valve 27 is cut off, and the supply of operating current is switched to close the 6th valve 23.27 or the branch pipe 22.26, thereby causing the flow from the cylinder 24 to the pipe line 12. As soon as the inflow of inert gas is blocked,
Drainage from the pipe line 12 to the branch pipe 27 is blocked (step S5).

Then, the supply of operating current from the control unit 20 to the main valve 11 is stopped, and the main valve 1] is opened, thereby supplying tap water to the water sprinkling head 13 (step S6). Subsequently, tap water is sprayed from each water spray head 13 by blowing out the thermal fuse of the water spray head 13, thereby putting an end to the indoor fire (step S7).

(Water Leak Detection Process) In the water leak detection process, the water leak detection mechanism 16 detects
This is to detect damage to the sprinkler head 13, etc. That is, the water leakage detection process detects the leakage of inert gas from the door 13 to the pipe 12 or water spray by opening the pressure valve 23 and setting the pressure of the inert gas filled in the pipe 12 to 1lt11. Detection and issue an alarm based on this. Below, I will explain the first step.

In the water leakage detection process, first, by supplying operating current from the control unit 2o to the pressurizing valve 23, the pressurizing valve 23 is held in an open state and inert scum in the cylinder 24 is filled into the pipe line 12. , Pu 581).

Next, a 10 second timer provided in the control unit 20 is started (step S8-2), and it is determined whether the gas pressure in the pipe line 12 has reached a predetermined set pressure (step S8-3).
). If the pressure does not reach a predetermined value, it is determined that the pump 24 is empty or scum is leaking from the pipe line 12, and the fire alarm pressure warning light 41 and the urine/water warning light 38 are activated. It lights up and returns to monitoring mode (step S8.1).

On the other hand, if the pressure has reached the predetermined value in step 58-3, the pressurizing valve 23 is subsequently closed (step 5I).
O).

Then, the timer of the control unit 20 is started and the pressurizing valve 23
is kept occluded for 5 minutes (Ste.

511). After this, the pressure sensor 25
The pressure of the inert gas in the pipe line 12 and the water spray head 1 are measured, and if the difference between the pressure at this time and the pressure set in the previous step S is within a predetermined tolerance range, the pipe line 12 and the water spray head 1 are
If it is determined that there is no leakage from pipe line 12, the system returns to the monitoring mode (step 512), and the procedure from step S8 is repeated in the same manner to constantly monitor for water leakage from pipe line 12 or the like.

On the other hand, if the pressure inside the pipe line 12 measured in step 312 has dropped beyond the allowable range with respect to the set pressure in step S9, a leak has occurred from the pipe line 12 or the water spray head 13. It is determined that this is the case, and accordingly, the water leakage warning light 38 provided on the control panel 20a of the control unit 20 is energized and the warning light 38 is turned on (step 813). When a re-inspection command is input from a re-inspection switch (not shown) provided in the control unit 20, the water leakage warning light 38 is turned off and the processes from step S8 onwards are repeated (step S8). S1
4.515). On the other hand, if a re-inspection command is not issued manually from the re-inspection switch, the process is stopped with the water leakage warning light 38 turned on.

(Water pressure monitoring process) The water pressure monitoring process is performed by monitoring the pressure signal output from the pressure sensor 29 of the water pressure monitoring mechanism 18,
First, the pressure sensor 29 determines whether the pressure of the tap water flowing through the side window reaches a predetermined pressure (step 816).

If it is determined in step S16 that the water pressure is less than a predetermined pressure, the water pressure warning light 39 provided on the control panel 20a of the control unit 20 is energized and lights up to warn of a drop in water pressure. (step 517
).

This process is repeated as needed, and only when the water pressure reaches a predetermined pressure in step S16, the three water pressure warning lights are turned on and the system returns to the monitoring mode (step 518).

(Oil Fire Treatment) The oil fire monitoring process is for monitoring the operating status of the oil fire extinguishing mechanism 19. Prior to this explanation, the operation of the oil fire extinguishing mechanism 19 itself will be explained.

In the oil fire extinguishing mechanism 19, when an oil fire occurs in the kitchen, the thermal fuse of the dome 31 is blown, and the injection head 31 opens and the pyrotechnic agent in the fire extinguishing cylinder 30 is injected. oil fires are extinguished.

At this time, the pressure gauge 33 of the fire extinguishing cylinder 30 detects a pressure drop within the fire extinguishing cylinder 30 as one fire extinguishing agent is discharged, and accordingly sends a pressure signal to the control unit 20.

The control unit 20 determines the operating status of the self-ignition mechanism 19 for oil fire based on the output of the pressure signal (step 5t9), and if the pressure signal is output, the alarm buzzer 36 is energized to generate an alarm sound. together with the control panel 20
energize the oil fire warning light 40 provided at a, and turn on the warning light 4
0 is lit (step 520). Then it returns to monitoring mode.

On the other hand, if no pressure signal is obtained, the system returns to the monitoring mode and repeatedly monitors the output of the pressure signal from the pressure gauge 33.

(2) When a predetermined operating current is not supplied to the control unit 20 in step S1 during a power outage, that is, at the time of a power outage, the operating current is not supplied to the main valve 11, so the main valve 11 is opened, and the pressure member 23 and the drain valve 27 are closed, and the above state is maintained until a predetermined operating current is obtained (step S21.522). As a result, while tap water flows from the water pipe 1 to the water spray head 13 via the main valve 11 and the pipe line 12, the inert gas is prevented from flowing from the cylinder 24 to the pipe line 12, and the drain valve 27 Drainage of tap water from is blocked. Therefore, if a fire occurs during a power outage, tap water is sprayed by blowing the thermal fuse of the water spray head 13 to extinguish the indoor fire.

On the other hand, if one power outage occurs without a fire occurring, first the operating current is supplied to the main valve 11 and the main valve 11 is closed (step 523).

Next, the drain structure 17 performs drainage treatment of the tap water that has flowed into the pipe line 12 during a power outage. This wastewater treatment will be explained below.

(Wastewater treatment) In the wastewater treatment, first, the drain valve 2 is closed due to the blockage of the main valve 11.
7 is opened (step 524), and then a timer in the control unit 20 is activated to keep the drain valve 27 open for 5 minutes (step 525). As a result, the pipe line 12
and the downstream side of the drain valve 27 communicate with each other, and the tap water in the pipe line 12 is sequentially drained from the branch pipe 26.

After the timer has finished operating, the drain valve 27 is opened (
step 526), which causes the entire device to be )r:! i
Returns to monitoring mode when power is off.

In addition to the above-mentioned functions, the sprinkler system of this embodiment has the following functions, in particular, by operating an on-off switch that forcibly opens and closes the drain valve 27 and main valve 11 of the drain stage structure 17 regardless of the control of the control unit 20. When the main valve 11 is opened, the drain valve 2 in particular
7 is opened to discharge tap water from the branch pipe 26, and the tip of the branch pipe 26 can also be used as a normal water faucet.

As is clear from the above explanation, in the sprinkler system of this embodiment, the pipe line is
Since the inflow of tap water into the pipe 12 is blocked by the blockage of the main valve 11, there is no need to take measures against condensation, water leakage, and freezing of the pipe 12, and flooding in the attic can be prevented even in the evening.

In addition, even if the sprinkler head 13 is damaged, as long as the main valve 11 is blocked, tap water will not be sprayed from the main valve 13, so even if the sprinkler head 13 is accidentally damaged during cleaning etc. Do not flood indoors.

In this embodiment, the main valve II is a solenoid valve that opens during a power outage.
Even if the actuation 71 cannot be supplied from the main valve 11 to the main valve 11 and the original function of the sprinkler system cannot be restored (when energized), the water supply will be supplied to the inside of the water spray head 13 when the main valve 11 is opened. If water is supplied, the C self-ignition function itself is guaranteed.

In addition, if tap water is trapped in the pipe line 12 due to restoration of a power outage, the drain valve 27 is opened and the pipe line ■
Since the tap water in the pipe 12 is drained and the inside of the pipe 12 is restored to its normal state, there is no problem with the effect of preventing condensation or water after the power outage is restored.

Furthermore, even if it becomes necessary to add more watering heads 13, this can be done by simply adding a new branch pipe 12b to the main pipe 12a and connecting the watering heads 13 with the main valve 11 closed. There is no need to block the main valve of the water pipe 1 itself, and there is no need to block other water supply equipment in the house.

In addition, in this embodiment, two branch pipes 1 are particularly connected to the main pipe 12a.
Although the sprinkler system for two rooms in which the sprinkler 2b extends has been described as an example, the present invention is not limited to this, and can naturally be applied to one room or three or more rooms.

In addition, in this embodiment, in particular, the opening and closing of the drain valve 27 is controlled by the main valve 11.
Although this is done according to instructions from the control unit 20 in order to operate the drain valve 27 in conjunction with the drain valve 27, the present invention is not limited to this. It is also optional to have a simple configuration.

[Effects of the Invention] As explained above, according to the present invention, in normal times, tap water can be prevented from flowing into the pipeline by blocking the main valve, so condensation, water leakage, freezing, etc. in the pipeline can be prevented. This can prevent water from entering the attic, and can also prevent water from being sprayed indoors if the sprinkler head is accidentally damaged.

In addition, in the event of a power outage, the main valve opens and tap water is supplied to the sprinkler head, so water is sprayed from the sprinkler head when it opens in response to a fire, ensuring a fire extinguishing effect.

Moreover, if the power outage returns and tap water is trapped in the pipe, the drain valve can be opened to drain the water from the pipe and return the pipe to its normal state by 1q yuan. , it is possible to prevent unexpected flooding and water discharge after power outage is restored, and as a result,
It is possible to stably exhibit the above-mentioned effectiveness in preventing water leakage, etc.

Furthermore, if it becomes necessary to add more watering heads,
This can be done by simply connecting a new sprinkler head to the pipe line with the main valve closed, so there is no need to block the main valve of the water pipe, and the water supply equipment of the pond is not affected.

[Brief explanation of the drawing]

1 and 2 are diagrams showing an embodiment of the present invention, FIG. 1 is a diagram showing the overall configuration of the device, FIG. 2 is a flowchart showing the operating procedure of the device, and FIGS. 3 and 4 are diagrams showing an example of the present invention. 1 and 2 are diagrams showing the configuration of a conventional residential sprinkler system. 1... Water pipe, 11... Main valve, 12
Pipeline, 13... To watering, Do, 14... Sensor, 2
6... Branch pipe (drain pipe), 27-... Drain valve.

Claims (1)

[Claims] In a residential sprinkler system, a sprinkler head that opens when the room temperature rises due to a fire is arranged at a position facing the interior of the house, and this sprinkler head is connected to the water pipes of the house via a conduit. While a detector is installed indoors to detect the occurrence of a fire, a source is installed between the water pipe and the pipeline that opens and closes based on the fire detection signal output from the detector and opens in the event of a power outage. Interpose a valve,
Furthermore, a base end portion of a drain pipe with an open tip is connected to the middle of the pipeline, and a drain valve is provided in the drain pipe to disconnect communication between the distal end side and the base end side inside the drain pipe. A residential sprinkler device characterized by: