JPH05253317A - Flowing water judging apparatus for sprinkler extinguishing equipment - Google Patents

Abstract

PURPOSE:To obtain a flowing water judging apparatus for a sprinkler extinguishing equipment which facilitates the construction of the sprinkler extinguishing equipment. CONSTITUTION:A primary side flowing water sensor 5 is provided on the upstream side from a sprinkler head 4 of a sprinkler piping 1 and a secondary side flowing water sensor 6 is provided on the downstream side communicating with a terminal water supply plug 3. A flowing water judging section 10 is provided on the side of one flowing water sensor and a flowing water signal of the other flowing water sensor is propagated to the sprinkler piping 1, for example, as vibration to be inputted into the flowing water judging section 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler fire extinguishing system, and more particularly to a running water discriminating apparatus in a sprinkler fire extinguishing system having a simple system for homes and the like.

[0002]

2. Description of the Related Art Conventionally, in a sprinkler fire extinguishing facility for a house or the like, a water distribution pipe is specially branched from a water supply, and a sprinkler head is arranged on this water distribution pipe. The water distribution pipe of this sprinkler fire extinguishing system does not run under normal conditions, and there is a possibility that water stains, rust, etc. may occur and mix into the water supply.Therefore, install a water tap for sanitary use at the end of the water pipe. I am trying.

If an attempt is made to detect an alarm by detecting running water during operation of the sprinkler head, it is necessary to distinguish between the running water caused by the operation of the sprinkler head and other running water such as the water tap.

Therefore, a water flow sensor of the sprinkler fire extinguishing equipment is provided with a water flow sensor on the upstream side of the sprinkler head and on the water tap side of the terminal. The operation of the sprinkler head and the use of the water tap are discriminated by the flowing water discriminating unit configured in (1).

[0005]

However, since water flow sensors are provided at the tip and the end of the water pipe, it is necessary to dispose signal lines to obtain signals from each of the water pipes. It is necessary to carry out electrical work. This requires a plurality of types of construction work, and when constructing a house, it is necessary to dispose two types of water pipes and signal lines on a narrow ceiling or the like, which makes construction work difficult.

Therefore, there is a system in which the water pipe of the sprinkler fire extinguishing equipment is installed in a loop type in order to eliminate the signal line by eliminating the distance between the front end portion and the end portion, but the construction becomes complicated and the space is reduced. There is a problem of cost.

In view of the above circumstances, the present invention eliminates the need for disposing a signal line between one of the two running water sensors and the running water determination unit, and facilitates construction of a sprinkler fire extinguishing facility. The purpose is to obtain a running water discrimination device for fire extinguishing equipment.

[0008]

In the sprinkler fire extinguishing equipment running water discrimination apparatus of the present invention, a primary side running water sensor is provided on the upstream side of the sprinkler head, and a secondary side running water sensor communicating with the terminal water tap is provided on the downstream side. Provided, in a running water discrimination device of the sprinkler fire extinguishing equipment for inputting the running water signals of both sensors to the running water discrimination unit, the running water discrimination unit is provided on the side of one of the running water sensors, and the other running water sensor The above object is achieved by inputting a running water signal to the running water determination unit through the sprinkler pipe.

[0009]

Description will be given of the case where the water flow discrimination unit is provided on the primary water flow sensor side. When a fire occurs, the sprinkler head is activated to start the fountain, and the primary side running water sensor detects running water and sends a running water signal to the running water determination unit.

When the terminal spigot of the sprinkler pipe is used in normal times, both the primary side and secondary side running water sensors detect running water and send running water signals to the running water discriminating section respectively.
At this time, the running water signal of the secondary side running water sensor is sent to the running water discrimination unit through the sprinkler pipe.

【Example】

Embodiments of the present invention will be described with reference to the accompanying drawings. In FIG. 1, a sprinkler pipe 1 provided in a house H has one end connected to a water supply 2 and the other end connected to a terminal water tap 3. A plurality of sprinkler heads 4 are arranged in the sprinkler pipe 1, a primary side flowing water sensor 5 is provided upstream of the sprinkler head 4, and a secondary side flowing water sensor 6 is provided downstream thereof. The primary side running water sensor 5
In the vicinity of the vibration sensor 7 composed of a piezoelectric element or the like
Is provided and is connected to the flowing water determination unit 10 by a signal line 9 via the amplifier 8. The primary side water flow sensor 5 is also connected to the water flow determination unit 10 by a signal line 11. A buzzer 12 is provided in the running water discrimination unit 10 to give a fire alarm.
A warning light or the like may be used.

In the present embodiment, although not shown, a known flowing water sensor is used as the primary side flowing water sensor 5, and for example, a valve body is opened by flowing water and a contact is closed by its movement. Can be used. As the secondary side water flow sensor 6, the vibration generator A shown in FIGS. The vibration generator A will be described. When the rotary blade 13 provided inside the pipe 1 rotates during running water, the rotating body 14 provided outside the pipe 1 rotates in association with the rotation. At this time, the plurality of engaging protrusions 15 provided on the outer periphery of the rotating body 14 continue to contact the flexible vibrating piece 16 one after another. This causes vibration, and the vibration is transmitted to the vibration sensor 7 via the pipe 1.

Next, the operation of this embodiment will be described. When a fire occurs, the sprinkler head 4 is actuated, and when the fountain is started, the primary side running water sensor 5 detects running water and sends a running water signal from the electrical contacts to the running water determination unit 10. In response to this, the flowing water determination unit 10 causes the buzzer 12 to ring.

When the terminal faucet 3 is used in normal times, both the primary-side flowing water sensor 5 and the secondary-side flowing water sensor 6 are activated, and the primary-side flowing water sensor 5 is activated in the same manner as in the above-mentioned fire, On the other hand, the secondary side flowing water sensor 6 causes vibration by the vibration generating means, and the generated vibration propagates through the sprinkler pipe 1 and reaches the vibration sensor 7. In response to this, the water flow signal of the vibration sensor 7 is once amplified by the amplifier 8 and input to the water flow determination unit 10. As a result, the flowing water determination unit 10 receives the flowing water signals from both the primary side flowing water sensor 5 and the secondary side flowing water sensor 6, but the signal from the secondary side flowing water sensor 6 is input as a prohibited input. The buzzer 12 does not ring.
It should be noted that it is preferable that the flowing water determination unit 10 be provided with a delaying unit, so that there will be no problem due to a shift in the operation timing of both the sensors 5 and 6.

As a result, the buzzer 12 sounds only when the sprinkler head 4 is in operation, and the buzzer 12 does not sound even when the normal terminal water tap 3 is used.

The present invention is not limited to the above-described embodiment, and, for example, in addition to the above-mentioned embodiment, an arbitrary position between the primary side water flow sensor 5 and the sprinkler head 4 can be provided.
It is also possible to connect the terminal water faucet pipe and provide the terminal water faucet pipe with the terminal water faucet via the secondary side flowing water sensor. Further, the positions of both the sensors 5 and 6 may be interchanged, and the flowing water determination unit 10 may be provided on the terminal side.

In addition to the above-mentioned vibration generator, a pulsating flow generator B as shown in FIG. 4 may be used as the secondary side water flow sensor. That is, at the time of running water, the rotating body 17 rotates, and the piston 19 provided in the pulsating flow generation running water pipe 18 moves up and down in association with the rotation, so that a pulsating flow is generated in the running water in the pulsating flow generating running water pipe 18. It is what is generated. This pulsating flow can be detected by the same configuration as the vibration sensor 7.

[0018]

Since the present invention is constructed as described above,
When installing the sprinkler fire extinguishing equipment in a house, etc., the signal line from one of the water flow sensors was not required, so there is no need to install the signal line on the ceiling, etc. Because it is good, the work is easy and the cost is low. Further, since it is not necessary to consider the wiring arrangement, the terminal water tap can be installed in a free place.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of an essential part showing a secondary side water flow sensor according to an embodiment of the present invention.

FIG. 3 is an enlarged front view of essential parts showing a secondary side water flow sensor according to an embodiment of the present invention.

FIG. 4 is an enlarged sectional view of an essential part showing a secondary side water flow sensor according to another embodiment of the present invention.

[Explanation of symbols]

 1 Sprinkler piping 3 Terminal water tap 4 Sprinkler head 5 Primary side flowing water sensor 6 Secondary side flowing water sensor 7 Vibration sensor 8 Amplifier 10 Flowing water discrimination unit 13 Rotating blade 14 Rotating body 15 Protrusion 16 Vibrating piece 17 Rotating body 18 For pulsating flow generation Running water pipe 19 Piston

Claims (2)

[Claims] 1. A primary side water flow sensor is provided on the upstream side of a sprinkler head of a sprinkler pipe, and a secondary side flow water sensor is provided on the downstream side so as to communicate with a terminal water tap, and the running water signals of both sensors are discriminated as flowing water. In the water flow discrimination device of the sprinkler fire extinguishing equipment to be input to the section, the water flow discrimination unit is provided on the water flow sensor side of one of the water flow sensors, and the water flow signal of the other water flow sensor is supplied to the sprinkler pipe. A flowing water discriminating apparatus for a sprinkler fire extinguishing facility, characterized in that it is inputted to the flowing water discriminating section via the above. 2. A terminal water tap is provided between the primary water sensor and the sprinkler head, and a secondary water sensor is provided so as to communicate with the terminal water tap.
Sprinkler fire extinguishing equipment running water discrimination device.