JPH0824356A - Water quantity controller - Google Patents

Abstract

PURPOSE:To provide a water quantity controller with which the quantity of water requested from the nozzle top ends of plural fire extinguishing hoses can be automatically supplied from one pump. CONSTITUTION:When supplying water from a pump 1 of a fire truck I to plural fire hoses 2a-2n, the quantity of water to be discharged required for nozzle top ends 3a-3n of the respective fire hoses 2a-2n is transmitted to audio receivers 5a-5n by audio oscillators 4a-4n with the water in the fire hoses 2a-2n as a medium, and a water quantity signal at such a time is processed by an optimum water discharge data setting device 6 and a discharge water quantity controller 7. Thus, the quantity of water to be discharged from the pump 1 is controlled, and valves 8a-8n for controlling the quantity of water to be supplied to the respective fire hoses 2a-2n are controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water amount control device, and is particularly useful when controlling the amount of water discharged from the tip of each fire hose of a fire engine.

[0002]

2. Description of the Related Art When extinguishing fire with a fire engine,
Normally, the water supplied from one pump, which is the water discharge source of one fire engine, is distributed and supplied to multiple fire hoses.
A firefighter is placed at the tip of each fire hose, and the required amount of water discharged at each tip is communicated to the firefighter arranged on the fire truck side by portable radio,
Based on this, firefighters on the fire engine side make adjustments on the fire engine.

[0003]

The above-mentioned prior art for adjusting the amount of water required at the tip of a fire hose has the following problems. That is, since the firefighter with the tip of the barrel and the firefighter on the side of the fire truck are using the mobile radio to coordinate and adjust, the fire truck side cannot quantitatively grasp the situation of the tip of the barrel, In addition, since one fire engine has a plurality of cylinder tips, it is difficult to adjust the optimum amount of water discharge required by each cylinder tip.

[0004] On the other hand, as a method of notifying a fire engine of a water discharge flow rate required by a cylinder tip, a signal is transmitted by a wire along a fire hose, and the signal is adjusted by combining this signal with a discharge flow control device. Can be considered,
Since it is customary to use a large number of fire extinguishing hoses connected to each other in order to obtain the required length, it is difficult to handle the hose connecting part by a wire connection method, and there remains a problem in practical use.

In view of the above-mentioned prior art, the present invention provides the water volume required by a plurality of customers, such as the tips of fire hoses, which are a plurality of water channels, from a single water discharge source such as a pump on the fire engine side. It is an object to provide a water amount control device that can automatically supply water.

[0006]

In order to achieve the above-mentioned object, according to the present invention, when a demand destination and a water discharge source do not relatively move up and down, a single water discharge source can be connected to a tip of each water channel through a plurality of water channels. A water quantity control device for controlling the amount of water to be supplied to each of the demand destinations, which is disposed at each of the demand destinations and sends out a water quantity signal indicating the required water quantity of the demand destination using the water to be supplied to the demand destination as a communication medium. An acoustic oscillator, a sound receiver disposed on the supply side, which is the base end of each channel, for receiving a water volume signal transmitted by the acoustic oscillator, and processing and releasing the water volume signal received by each acoustic receiver. Control means for controlling the amount of water discharged from the water source and controlling the opening of a valve disposed at the base end of each channel so that the amount of water required by each demand destination is obtained.

[0007] Further, in the case where pressure fluctuation occurs at the demand destination due to the relative movement of the demand destination and the water discharge source up and down, the demand at one end of each water channel from one water discharge source via a plurality of water channels is considered. A water amount control device for controlling the amount and pressure of water to be supplied first, respectively, and disposed at each demand destination,
An acoustic oscillator that sends out a water amount signal indicating the demanded water amount of the demanded party and the pressure of the demanded party using water supplied to the demanded party as a communication medium, and an acoustic oscillator that is arranged at the supply source side that is the base end of each water channel. The acoustic receivers that receive the water volume signals sent by the water, and the water volume signals received by each acoustic receiver are processed to control the water volume and pressure from the water source, and the water volume and pressure required by each customer. Therefore, it has a control means for controlling the opening degree of a valve arranged at the base end of each water channel.

[0008]

According to the present invention having the above-described structure, the amount of water or the amount and pressure of water required at each customer is transmitted to the acoustic receiver by the water amount signal transmitted through the acoustic oscillator and the water in the water channel, and this acoustic reception is performed. A valve that processes the water volume signal received by the water heater by the control means and increases or decreases the discharge water volume or the discharge water volume and discharge pressure from the discharge source according to the result, while adjusting the water volume or the water volume and pressure flowing into each water channel. Control the opening of.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is an explanatory view conceptually showing a first embodiment of the present invention. This explanatory diagram shows the configuration when the demand destination and the water discharge source do not move vertically.

As shown in FIG. 1, a fire engine I has one pump 1 as a water discharge source and connects fire hoses 2a and 2n as n (n is a natural number) water passages. I have. The pump 1 is driven by the engine 9 and the water source 1
The water pumped from 0 is supplied to each fire hose 2a, 2n via the water outlet 11 and the valves 8a, 8n. Thus, the total amount of water discharged from the water outlet 11 increases due to the increase in the rotation speed of the engine 9, and the amount of water flowing into the fire hoses 2a, 2n can be adjusted by adjusting the opening degrees of the valves 8a, 8n. It is configured in.

Acoustic oscillators 4a and 4n are arranged at the tips 3a and 3n at the distal ends of the fire hoses 2a and 2n, and acoustic receivers 5a and 5n are arranged near the valves 8a and 8n at the proximal ends. It is set up. The acoustic oscillators 4a and 4n are shown in FIG.
Are arranged in the tube ends 3a and 3n in a manner as shown in FIG. 2, and a predetermined water amount signal is sent to the base end portion using the water in the fire extinguishing hoses 2a and 2n as a medium by a phase modulation (PM) method, for example. The receivers 5a and 5n are configured to receive.

FIG. 3 is an explanatory diagram for explaining the principle of signal oscillation and reception at this time. When the tuning fork 12 is hit with a mallet 14 in the state shown in FIG. Here, the acoustic oscillator 4 corresponding to the tuning fork 12
a, 4n are disposed at the tip of the cylinder 3a, 3n, the acoustic receivers 5a, 5n corresponding to the tuning fork 13 are disposed at the base end, and the hammer 14 for hitting the tuning fork 12 is replaced with an electric stimulus. This is the principle when sound is used for information transmission. The water amount signal at this time is a signal indicating the required amount of water to be discharged from the cylinder tips 3a and 3n, and the phase is 0 ° to 360 ° by the PSK (Phase Shift Kcying) method which is one of PM methods suitable for transmitting information by underwater sound. Is configured as a signal that is defined corresponding to a predetermined amount of water.

The water amount signals received by the acoustic receivers 5a and 5n are converted into electric signals and supplied to the optimum water discharge specification setting device 6. The optimum water discharge specification setting device 6 detects the opening degree of each of the valves 8a and 8n corresponding to each required water discharge amount, detects the total amount of the required water discharge amount, and supplies a signal indicating the total amount to the water discharge amount control device 7. I do. The water discharge amount control device 7 processes the signal to control the engine 9 and the valves 8a and 8n, adjust the rotation speed of the pump 1 via the engine rotation speed, that is, the discharge water amount, and open the valves 8a and 8n. Adjust the degree.

FIG. 4 is a block diagram showing the first embodiment of the present invention in more detail. In the figure, the same parts as those of FIG. 1 are denoted by the same reference numerals, and duplicate description will be omitted.

As shown in the figure, the acoustic oscillator 4a (the acoustic oscillator 4n has the same structure) has an opening lever 15,
The opening / phase converter 16, the oscillating unit 17, and a battery 18 serving as a power source for the opening / phase converter 16 and the oscillating unit 17.
In addition to setting the opening of a, the opening / phase converter 16 converts the opening into a phase corresponding to the set opening, and the oscillating unit 17 sends out a water flow signal containing the set opening as information. . At this time, the frequency of the signal assigned to each of the acoustic oscillators 4a and 4n is different, and the acoustic receivers 5a and 4n have different frequencies.
5n receives a water quantity signal having a frequency unique to each fire hose 2a, 2n that has propagated in the water of the fire hoses 2a, 2n.

The optimum water discharge specification setting device 6 includes an acoustic receiver 5
A / D converters 19a and 19n convert the water amount signals converted into electric signals by a and 5n into digital signals, and
Through the noise filters 20a and 20n, the acoustic signal / opening converters 21a and 21n convert the signals into signals representing the opening information of the valves 8a and 8n. The required water discharge amount calculator 22 calculates the total water discharge amount required based on the opening information corresponding to each of the fire extinguishing hoses 2a and 2n, and outputs the signal as the required water discharge amount / engine speed converter 23 and D /. The water discharge amount control device is sent to the water discharge amount control device 7 via the A converter 24, and a signal indicating the opening information of the acoustic signal / opening ratio converters 21a and 21n is transmitted via the D / A converters 25a and 25n. Send to 7. Each opening degree / required water discharge amount display 26 displays various amounts such as the opening degree of each cylinder tip 3a... 3n and the necessary total water discharge amount based on the processing information of the necessary water discharge amount calculator 22.

The water discharge control device 7 has an engine speed control drive device 27 and valve opening degree control drive devices 28a and 28n. The engine speed control drive device 27 controls the engine throttle 29 to control the engine 9 And the valve opening control drives 28a, 28n
Controls the opening of the valves 8a and 8n.

According to the first embodiment described above, the firefighter can use the tip 3
By simply operating the opening levers 15 of the a, 3n acoustic oscillators 4a, 4n, the amount of water set by the opening levers 15 is supplied to the fire extinguishing hoses 2a, 2n. That is, at this time, the required water amounts at the cylinder tips 3a and 3n are the values of the valves 8a and 8n.
The water in the fire hoses 2a, 2n is propagated as the opening degree information of the above, and is received by the acoustic receivers 5a, 5n. Sound receiver 5
The a and 5n convert the water amount signals sent by the acoustic oscillators 4a and 4n into electric signals and supply them to the optimum water discharge specification setting device 6. The optimum water discharge specification setting device 6 processes all the water amount signals to calculate the total required water amount and sends a signal including this information to the water discharge amount control device 7. At the same time, a signal containing the required water amount information for each fire hose 2a, 2n is also sent to the water discharge amount control device 7. The water discharge control device 7 controls the engine throttle 29 by controlling the engine throttle 29.
And the engine 9 to control the number of revolutions of the pump 1, that is, the discharge amount, and to adjust the opening of the valves 8 a and 8 n to control the fire hoses 2 a and 2 n. Control the amount of water supplied.

FIG. 5 is an explanatory view conceptually showing a second embodiment of the present invention. This explanatory diagram shows a configuration in a case where a demand destination and a water discharge source relatively move up and down. A description will be given below in the same manner as in the first embodiment.

As shown in FIG. 5, the fire engine I has one pump 1 as a water discharge source and connects fire hoses 2a and 2n as n (n is a natural number) water passages. I have. The pump 1 is driven by the engine 9 and the water source 1
The water pumped from 0 is supplied to each fire hose 2a, 2n via the water outlet 11 and the valves 8a, 8n. Thus, the total amount of water discharged from the water outlet 11 increases due to the increase in the rotation speed of the engine 9, and the amount of water flowing into the fire hoses 2a, 2n can be adjusted by adjusting the opening degrees of the valves 8a, 8n. It is configured in. Also, the valves 8a, 8
The acoustic receivers 5a and 5n and the discharge pressure detectors 51a and 51n for detecting the respective discharge pressures are arranged near the position n.

Acoustic oscillators 4a, 4n and water discharge pressure detectors 41a, 41n are provided at the tips 3a, 3n at the distal ends of the fire hoses 2a, 2n, and valves 8a, 8n at the base end.
, Acoustic receivers 5a and 5n are respectively arranged. The acoustic oscillators 4a, 4n and the water discharge pressure detector 41a,
The reference numeral 41n is arranged on the tube ends 3a and 3n in a manner as shown in FIG.
The water in n is sent to the base end portion as a medium, and the acoustic receivers 5a, 5
n.

FIG. 3 is an explanatory diagram for explaining the principle of signal oscillation and reception at this time, but since it is the same as that of the first embodiment, its explanation is omitted.

The water quantity signals received by the acoustic receivers 5a and 5n are converted into electric signals and supplied to the optimum water discharge specification setting device 6 and the pressure compensator 61 via the optimum water discharge specification setting device 6. Optimal water discharge specification setting device 6 and pressure compensator 61
Detects the opening degree of each valve 8a, 8n corresponding to each required water discharge amount and the discharge pressure corresponding to each valve 8a, 8n,
The total amount of required water discharge is detected, and signals representing these are supplied to the water discharge control device 7. The water discharge control device 7 processes the signal to control the engine 9 and the valves 8a and 8n,
The rotation speed of the pump 1, that is, the discharge water amount is adjusted via the engine rotation speed, and the openings of the valves 8a and 8n are adjusted.

FIG. 7 is a block diagram showing the second embodiment of the present invention in further detail. 5, those parts that are the same as those corresponding parts in FIG. 5 are designated by the same reference numerals, and a description thereof will be omitted.

As shown in FIG. 1, the acoustic oscillator 4a (the acoustic oscillator 4n also has the same configuration) has a flow lever 15,
Flow / phase converter 16, pressure / phase converter 31, time division multiplexed signal combiner 32, oscillator 17, flow / phase converter 16, pressure / phase converter 31, time division multiplexed signal combiner 32, and oscillator The pressure / phase converter 31 includes an external water discharge pressure detector 41.
It is connected to a. A fireman operates the flow rate lever 15 to set the flow rate from the valve 8a, and the flow rate / phase converter 16 converts the flow rate into a phase corresponding to the set flow rate.

On the other hand, the water discharge pressure detected by the external water discharge pressure detector 41a is also converted into a corresponding phase by the pressure / phase converter 31. These two phase signals are combined by the time division multiplexing signal combiner 32, and the oscillator 17 sends out a water amount signal containing the set flow rate and the water discharge pressure as information. At this time, each acoustic oscillator 4a,
The frequency of the signal to be assigned is different for every 4n, and the acoustic receivers 5a and 5n receive the water quantity signal having a frequency unique to each of the fire hoses 2a and 2n that has propagated in the water of the fire hoses 2a and 2n.

The optimum water discharge specification setting device 6a converts the water flow rate signal converted into an electric signal by the acoustic receivers 5a and 5n into a digital signal by the A / D converters 19a and 19n, and the noise filters 20a and 20n. Acoustic signal / flow rate converter 2 via division multiplex signal distributors 33a, 33n
At 1a and 21n, the signals are converted into signals representing the flow rate information of the valves 8a and 8n. The required valve opening calculator 38 is provided with each fire hose 2
Based on the flow rate information corresponding to a and 2n and the correction information from the pressure correction device 61, which will be described later, the total water discharge amount required is calculated, and the signal is used to calculate the required water discharge amount / engine speed converter 23 and D / A. Water discharge amount control device 7 via converter 24
Send to. Based on the processing information of the required valve opening calculator 38, each opening / required water discharge amount display 26a displays each cylinder tip 3a.
It displays various quantities such as the opening degree of n, the pressure, and the required total water discharge amount.

The pressure compensator 61 includes the sound receivers 5a and 5
A / D converter 19 converts the water amount signal converted into an electric signal at
a, 19n to convert it into a digital signal, and further noise filters 20a, 20n and a time division multiplexing signal distributor 33.
a, 33n and acoustic signal / pressure converters 34a, 34n
The pressure fluctuations at the cylinder tips 3a, 3n are detected based on the signal representing the water discharge pressure information of the cylinder tips 3a, 3n via. at the same time,
A discharge pressure detector 51 arranged near each of the valves 8a and 8n
a, 51n are supplied to the A / D converters 37a, 37
The signal is converted into a digital signal via n and taken in. The constant pressure controller 36 sends correction information to the optimal water discharge specification setting device 6a so that the detected pressure fluctuation becomes the pressure before the fluctuation, that is, the pressure at the tip of the cylinder becomes constant. , 8n and the engine throttle 29 are controlled.

The water discharge control device 7 has an engine speed control drive device 27 and valve opening degree control drive devices 28a and 28n. The engine speed control drive device 27 controls the engine throttle 29 to control the engine 9 And the valve opening control drives 28a, 28n
Controls the opening of the valves 8a and 8n.

According to the above-mentioned second embodiment, the firefighter uses the tip 3
By operating the flow levers 15 of the acoustic oscillators 4a and 4n, the water of the water amount set by the flow levers 15 is supplied to each fire hose without being affected by the pressure fluctuation caused by the vertical movement of the cylinder tips 3a and 3n. 2a and 2n. That is, the required water volume at the tube tips 3a and 3n at this time propagates the water in the fire hoses 2a and 2n as flow rate information of the valves 8a and 8n and water discharge pressure information of the tube tips 3a and 3n, and is received by the acoustic receivers 5a and 5n. Is done. Sound receivers 5a, 5n
Converts the signals transmitted by the acoustic oscillators 4a and 4n into electric signals and converts the signals into the optimum water discharge specification setting device 6a and the pressure compensating device 6a.
Feed to 1. By processing these signals by the optimum water discharge specification setting device 6a and the pressure correction device 61, the total required water amount and the pressure fluctuation are calculated, and a signal including this information is sent to the water discharge amount control device 7. At the same time, a signal containing the required water amount information for each fire hose 2a, 2n is also sent to the water discharge amount control device 7. The water discharge amount control device 7 controls the rotation speed of the engine 9 by controlling the engine throttle 29 to control the rotation speed of the pump 1, that is, the discharge amount, and adjusts the opening degrees of the valves 8a and 8n. The amount of water supplied to each fire hose 2a, 2n and the discharge pressure are controlled.

Although the above embodiment is applied to the fire engine I, the present invention is not limited to this. The present invention is generally applicable to a case where the amount of water or the amount and pressure of water supplied from a single water discharge source to a demand destination at the end of each canal via a plurality of waterways is controlled in accordance with a demand at the demand destination. Applicable.

[0033]

As described above in detail with reference to the embodiments, according to the present invention, it is possible to automatically send a signal indicating a required amount of water or a required amount of water and pressure by using a demanded acoustic oscillator. It is possible to secure the total amount of water and the required amount of water or the required amount and pressure of each customer.

[Brief description of drawings]

FIG. 1 is an explanatory view conceptually showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an arrangement mode of the acoustic oscillator in the first embodiment.

FIG. 3 is an explanatory diagram showing the principle of the present invention.

FIG. 4 is a block diagram showing a first embodiment of the present invention.

FIG. 5 is an explanatory view conceptually showing a second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing an arrangement mode of an acoustic oscillator according to a second embodiment of the present invention.

FIG. 7 is a block diagram showing a second embodiment of the present invention.

[Explanation of symbols]

 I Fire engine 1 Pump (water discharge source) 2a, 2n Fire extinguishing hose (water channel) 3a, 3n Tube tip (demand destination) 4a, 4n Acoustic oscillator 41a, 41n Water discharge pressure detector 5a, 5n Acoustic receiver 51a, 51n Discharge pressure detector 6,6a Optimal water discharge specification setting device 61 Pressure correction device 7 Water discharge amount control device 8a, 8n valve

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kishida Sequentially 1-13-20 Hatagaya, Shibuya-ku, Tokyo Inside Fire Research Institute, Tokyo Fire Department (72) Inventor Takashi Yagasaki 1-13-20 Hatagaya, Shibuya-ku, Tokyo Tokyo Fire Department Fire Science Institute (72) Inventor Koichiro Meguro 1-3-5 Otemachi, Chiyoda-ku, Tokyo Tokyo Fire Department (72) Inventor Masaichi Yoneda 13-12 Hatagaya, Shibuya-ku, Tokyo (72) Inventor, Makito Ota 1-1, Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard (72) Inventor, Kouji Funo, 1-1, Atsunoura-cho, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard (72) Inventor Akihiro Kaku 1-1 1-1 Atsunoura-machi, Nagasaki City, Nagasaki Prefecture Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard

Claims (3)

[Claims] 1. A water amount control device for controlling an amount of water to be supplied from a single water discharge source to a demand destination at a tip end of each water channel through a plurality of water channels, wherein the water flow control device is disposed at each demand destination and has a demand. An acoustic oscillator that sends out a water quantity signal indicating the required water quantity of the demand destination using the water supplied earlier as a communication medium, and an acoustic oscillator that is provided at the supply source side, which is the base end of each channel, and that transmits the water quantity signal that the acoustic oscillator sends out. An acoustic receiver to be received and a water volume signal received by each acoustic receiver are processed to control the amount of water discharged from the water discharge source, and are arranged at the base end of each channel so that the amount of water required by each demand destination is obtained. Control means for controlling the opening of the valve provided. 2. A water amount control device for controlling the amount and pressure of water to be supplied from a single water discharge source to a demand destination at a tip end of each water passage through a plurality of water passages. A sound oscillator that sends out a water quantity signal indicating the demanded water volume of the demand destination and the pressure of the demand destination using the water supplied to the demand destination as a communication medium, and an acoustic oscillator disposed at the supply source side, which is the base end of each channel, An acoustic receiver that receives the water volume signal sent by the oscillator, and processes the water volume signal received by each acoustic receiver to control the amount and pressure of water discharged from the water discharge source, and the amount and pressure of water required by each customer. Control means for controlling the degree of opening of a valve disposed at a base end of each water channel. 3. The fire pump according to claim 1, wherein the water discharge source is a pump disposed in the fire engine, the water channel is a fire hose connected to the pump, and a demand destination is a pipe end of each fire hose as a water discharge port. The water amount control device according to claim 2.