JP2000291815A - Gas shutoff controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To close a fluid control valve so as to prevent an accident related to a gas flow passage by driving the fluid control valve according to an opening/closing action of a general purpose apparatus. SOLUTION: When a room for cooking by a gas table 24 is not used after cooking with the gas table 24 is finished, a switch 31 for a fluorescent light is turned off, and a signal transmitted from a transmission means 33 is received in a receiving means 21 in a gas meter 9 via antennas 34, 20. The received signal is processed in a computing processing unit 16, the signal is fed to a drive controlling means 18, and a driving signal is outputted to a driving circuit unit 17. Consequently, a stepping motor 15 is driven so as to close a fluid control valve 14. On the other hand, the fluorescent light switch 31 is turned on, the fluid control valve 14 is closed, and the gas table 24 is used usually. In this way, an accident due to gas leakage can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas shut-off control device for controlling the flow of a gas fluid flowing in a flow passage.

[0002]

2. Description of the Related Art Conventionally, as this kind of gas shut-off control apparatus, there has been one as disclosed in Japanese Patent Application Laid-Open No. 9-217860. Hereinafter, the configuration will be described with reference to the drawings. In FIG. 5, 1 is a flow rate measuring means, 2 is an external sensor, 3 is a control means, 4 is a shutoff valve, 5 is a valve driving means, 6 is an abnormality detecting means, 7 is a notifying means, and 8 is a display means. In the conventional example configured as described above, the passing gas flow rate is measured by, for example, a reed switch (not shown).
When an abnormal signal is input to the external sensor 2, the valve driving means 5
Is for receiving a shut-off signal from the control means 3 and outputting a close signal for the shut-off valve 4.

[0003]

However, the conventional gas shut-off control device closes the shut-off valve when an abnormal signal is input from an external sensor, and in other cases, the valve is always open. Has been maintained. Therefore, even when the gas is not used, the gas flow path is open, and in a general house, the gas circuit is open even when no resident is present. When it is slightly opened, a small amount of gas continues to leak, and there is a problem from the viewpoint of safety.
Of course, if a small amount of gas continues to leak for a long time, the shut-off valve will be closed, but will continue to leak until shut off.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a gas flow path provided in a building, a fluid control valve for opening and closing the gas flow path, and a driving means for driving the fluid control valve.
A drive circuit unit that outputs a drive signal to the drive unit, a drive control unit that controls the output of the drive circuit unit, a flow rate measurement unit that measures the gas flowing through the gas flow path, and calculates and drives a flow rate based on a signal from the flow rate measurement unit. An arithmetic processing unit for controlling the means, a gas appliance provided on the downstream side of the gas flow path, and general equipment provided in the building other than the gas appliance, and a driving operation of the fluid control valve by opening and closing operation of the general equipment Is possible. Then, the fluid control valve is closed by a closing operation (that is, a stopping operation) of the general equipment, thereby preventing an accident relating to the gas flow path.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to a first aspect of the present invention provides a fluid control valve for opening and closing a gas flow path, a driving means for driving the fluid control valve, a driving circuit for outputting a driving signal to the driving means, A drive control unit for controlling the output of the circuit unit, a flow rate measuring unit for the gas flowing through the gas flow path, a calculation processing unit for calculating a flow rate by a signal from the flow rate measurement means and controlling the driving means, and a downstream of the gas flow path A gas appliance provided on the side, a general device provided other than the gas flow path, and a drive operation of the fluid control valve is enabled by opening and closing operation of the general device. When the gas appliance is not used, the general equipment other than the gas appliance is operated to close the fluid control valve, and when the gas appliance is not used, the gas flow path is closed to prevent accidents due to gas leaks and the like. This is to prevent it from happening.

According to a second aspect of the present invention, the switching operation of the general equipment is the switching operation of the switch of the lighting equipment. By closing the fluid control valve in conjunction with a lighting switch in the room where the gas appliance is installed, an accident due to gas leakage or the like is prevented.

According to a third aspect of the present invention, the opening and closing operation of the general equipment is an opening and closing operation of a power switch of a building. And when you are absent for a long time, by closing the switch of the power supply and closing the fluid control valve,
This prevents accidents due to gas leaks and the like.

According to a fourth aspect of the present invention, the opening and closing operation of the general equipment is a locking and opening operation of a doorway of a building. By opening and closing the door at the time of going out, an accident due to gas leakage or the like is prevented.

According to a fifth aspect of the present invention, the opening and closing operation of the general equipment is a locking and opening operation from the outside of the entrance door of the building. The door opening / closing operation of the entrance door is performed from the outdoor side when going out, thereby preventing an accident due to gas leakage or the like when going out.

According to a sixth aspect of the present invention, the fluid control valve is provided between the flow rate measuring means and a gas appliance provided downstream of the gas flow path. Then, the gas appliance can be arbitrarily specified to open and close the flow rate fluid control valve, thereby preventing an accident due to a gas leak of the arbitrary gas appliance or the like.

According to a seventh aspect of the present invention, a signal for opening and closing operation of general equipment is transmitted to the arithmetic processing unit by wireless means. Then, the driving operation of the fluid control valve becomes possible by opening and closing operations of general equipment without wiring work, and the usability is improved.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a system diagram of a gas cutoff control apparatus according to Embodiment 1 of the present invention.

In FIG. 1, reference numeral 9 denotes a gas meter. Inside the gas meter 9, a flow path 13 which communicates an inlet 10 with an outlet 11 and has a flow rate measuring means 12 is formed. In the flow path 13, a fluid control valve 14 that opens and closes the flow path 13, a stepping motor 15 that is a driving unit that drives the fluid control valve 14, an arithmetic processing unit 16, and signals from the arithmetic processing unit 16 are input. Drive circuit unit 17 to stepping motor 15
It comprises a drive control means 18 for controlling the output from the power supply, a battery power supply 19 and a receiving means 21 having an antenna 20. Reference numeral 22 denotes a vibration sensor, and reference numeral 23 denotes a pressure sensor.

A gas pipe 26 is connected from the outlet 11 to a gas table 24 which is a gas appliance installed in a kitchen of a house as a building via a manual opening / closing valve 25. 2
7 is a ventilation fan, 28 is an exhaust hood. On the ceiling 29,
A fluorescent lamp 30 which is a lighting device of general equipment is provided, and a fluorescent lamp switch 31 which is an opening / closing means of the fluorescent lamp 30 is provided together with a ventilation fan switch 32. Reference numeral 33 denotes a transmitting unit having an antenna 34. Reference numeral 35 denotes a changeover switch for turning on / off the linkage between the fluorescent light switch 31 and the transmitting means 33.

Next, the operation and operation of the above configuration will be described with reference to FIG. Normally, the fluid control valve 14 inside the gas meter 9 is open. In this state, the flow path 1
3 and the gas table 24 is used as usual. When the changeover switch 35 of the transmitting means 33 is turned on, the transmitting means 33 and the fluorescent light switch 31 are linked. Therefore, after the cooking using the gas table 24 is completed, when the fluorescent lamp switch 31 is turned off when the room is not used, the signal transmitted from the transmitting means 33 as the wireless means is transmitted to the gas meter 9 via the antennas 34 and 20. Is received by the receiving means 21. The received signal is processed by the arithmetic processing unit 16, the signal is sent to the drive control unit 18, and the drive signal is output to the drive circuit unit 17.

As a result, the stepping motor 15 is driven to close the fluid control valve 14. When the fluorescent light switch 31 is turned on, the fluid control valve 14 is opened and the gas table 24 can be used as usual. The transmitting means 3
3 is turned off, the transmitting means 33
And the fluorescent light switch 31 are not linked,
The fluid control valve 14 is opened, and the gas table 24 can be used regardless of whether the fluorescent lamp switch 31 is on or off.

As described above, when the switch of the lighting means, which is a general device, is turned off, the gas circuit is automatically closed, so that there is no fear of gas leakage at night and the safety of the gas circuit is ensured. It is. Since signals are transmitted and received by wireless means, no wiring work is required and the usability is good. As the lighting device, for example, a gas table 2
Fluid control valve 14 in conjunction with lighting means for illuminating the periphery of
May be closed. In addition to the manual switch as shown in FIG. 1, the changeover switch 35 can use a timer (not shown) to link a desired time zone.

(Embodiment 2) Embodiment 2 of the present invention shown in FIG.
In the system diagram of the gas cutoff control device described above, reference numeral 36 denotes a switchboard which is a general device for building power, and the switchboard 36 is provided with an earth leakage breaker 37 which is a wiring safety device for each room. 38 is a main earth leakage breaker. Reference numeral 39 denotes a transmitting unit having an antenna 40. 41 is earth leakage breaker 3
A changeover switch for turning on and off the interlocking of the transmission means 8 with the transmission means 39. Others are the same as those in FIG. 1 and the description is omitted.

Next, the operation and operation of the above configuration will be described with reference to FIG. Normally, the flow control valve 14 is in an open state, and the gas table 24 is used. And now
When the changeover switch 41 of the transmitting means 39 is turned on, the transmitting means 39 and the earth leakage breaker 38 are linked. Therefore, for example, when the earth leakage breaker 38 is turned off when the user is absent for a long period of time, the signal transmitted from the transmitting means 39 as the wireless means is received by the receiving means 21 of the gas meter 9 via the antennas 40 and 20. The received signal is processed by the arithmetic processing unit 16
The signal is sent to the drive control unit 18 and the drive signal is output to the drive circuit unit 17.

As a result, the stepping motor 15 is driven to close the fluid control valve 14. When the earth leakage breaker 38 is turned on again, the fluid control valve 14 is opened and the gas table 24 can be used as usual. In this way, when the earth leakage breaker 38, which is a general device, is turned off, the gas circuit is automatically closed, so that the safety of the gas circuit in the absence of a long term is ensured. By linking the earth leakage breaker 37 and the transmission means 39, the flow control valve 14 can be controlled only in the designated room, and the appliances that need to be constantly energized can be used continuously.

(Embodiment 3) Embodiment 3 of the present invention shown in FIG.
In the system diagram of the gas shut-off control device, reference numeral 42 denotes a door of a building, and a knob 44 having a keyhole 43 is provided on the outdoor side of the door 42. Reference numeral 45 denotes a transmitting unit having an antenna 46. The knob 44 and the transmission means 45 are connected by a cable 47. Reference numeral 48 denotes a changeover switch for turning on / off the interlocking of the transmission means 45 and the knob 44. Others are shown in Figure 1
The description is omitted.

Next, the operation and operation of the above configuration will be described with reference to FIG. Normally, the flow control valve 14 is in an open state, and the gas table 24 is used. And now
When the changeover switch 48 of the transmitting means 45 is turned on, the transmitting means 45 and the knob 44 are linked. Therefore, for example, when the user goes out, when the door 42 is closed and locked, a signal transmitted from the transmitting means 45 as a wireless means is transmitted to the antennas 46 and 2.
0 is received by the receiving means 21 of the gas meter 9.
The received signal is processed by the arithmetic processing unit 16, the signal is sent to the drive control unit 18, and the drive signal is output to the drive circuit unit 17.

As a result, the stepping motor 15 is driven to close the fluid control valve 14. When the lock is released again, the fluid control valve 14 is opened and the gas table 24 can be used as usual. As described above, when the door of the building, which is a general device, is locked, the gas circuit is automatically closed, so that the safety of the gas circuit when going out is ensured. In addition, by interlocking the transmission means 45 with the opening and closing of the lock from the outdoor side, the flow control valve 14 does not operate when locking from inside, and the flow control valve 14 is closed only when locked from the outdoor side. It is easy to use.

(Embodiment 4) Embodiment 4 of the present invention shown in FIG.
In the system diagram of the gas shut-off control device, reference numeral 49 denotes a fluid control valve connected to the gas pipe 26 and driven by the motor 50. 51 is a receiving means having an antenna 52. The receiving means 52 has a function for driving the stepping motor 50 in response to the received signal (not shown). Others are the same as those in FIG. 1 and the description is omitted.

Next, the operation and operation of the above configuration will be described with reference to FIG. Normally, the flow control valve 49 is in an open state, and the gas table 24 is used. And now
When the changeover switch 35 of the transmitting means 33 is turned on, the transmitting means 33 and the fluorescent light switch 31 are linked. Therefore, after the cooking using the gas table 24 is completed, when the fluorescent lamp switch 31 is turned off when the room is not used, the signal transmitted from the transmitting means 33 which is a wireless means is transmitted to the receiving means via the antennas 34 and 52. 51. The received signal finally drives the stepping motor 15 to close the fluid control valve 49.

When the fluorescent light switch 31 is turned on, the fluid control valve 49 is opened and the gas table 24 can be used as usual. When the changeover switch 35 of the transmitting means 33 is turned off, the transmitting means 33 and the fluorescent light switch 31 are not interlocked, and the fluid control valve 49 is in the open state, which is related to the on / off of the fluorescent light switch 31. Thus, the gas table 24 can be used.
Thus, by specifying an arbitrary terminal and opening and closing the fluid control valve, it is possible to prevent an accident due to a gas leak or the like from a specific terminal.

[0028]

As apparent from the above description, the following effects can be obtained according to the gas cutoff control device of the present invention.

According to the first aspect of the present invention, a fluid control valve for opening and closing a gas flow path, a driving unit for driving the fluid control valve, a driving circuit unit for outputting a driving signal to the driving unit, and a driving circuit unit Drive control means for controlling the output of the gas, flow rate measurement means of the gas flowing through the gas flow path, a processing unit for calculating the flow rate by a signal from the flow rate measurement means and controlling the drive means, and a downstream side of the gas flow path The gas appliance provided, the general equipment provided other than the gas flow path, and the opening / closing operation of the general equipment enable the drive operation of the fluid control valve. When the gas appliance is not used, the fluid control valve is closed by operating equipment other than the gas appliance, and when the gas appliance is not used, the gas flow path is closed. Can be prevented.

According to the second aspect of the present invention, the opening / closing operation of the general equipment is set to the opening / closing operation of the switch of the lighting equipment, thereby interlocking with the lighting switch in the room where the gas appliance is installed. By closing the fluid control valve in this way, it is possible to prevent an accident due to gas leakage or the like when not illuminated.

According to the third aspect of the invention, the switching operation of the general equipment is the switching operation of the power switch of the building, so that the power switch is closed when the power supply is not present for a long time. By closing the fluid control valve, an accident due to gas leakage or the like can be prevented.

According to the fourth aspect of the present invention, the opening and closing operation of the general equipment is a locking and opening operation of the entrance door of the building. When the door is locked and opened when going out, the fluid control valve can be opened and closed, and an accident due to gas leakage or the like can be prevented.

According to the fifth aspect of the present invention, the opening and closing operation of the general equipment is a locking and opening operation of the entrance door of the building from the outdoor side. By doing so from the outside, an accident due to gas leakage or the like when going out can be prevented beforehand, and usability is improved.

According to the sixth aspect of the present invention, the fluid control valve is provided between the flow measuring means and the gas appliance provided on the downstream side of the gas flow path. Then, the gas appliance can be arbitrarily specified to open and close the flow rate fluid control valve, and an accident due to a gas leak of the arbitrary gas appliance or the like can be prevented.

According to the seventh aspect of the present invention, a signal for opening and closing operation of general equipment is transmitted to the arithmetic processing unit by wireless means. Then, the driving operation of the fluid control valve becomes possible by opening and closing operations of general equipment without wiring work, and the usability is improved.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a gas cutoff control device according to a first embodiment of the present invention.

FIG. 2 is a system configuration diagram of a gas cutoff control device according to a second embodiment of the present invention.

FIG. 3 is a system configuration diagram of a gas cutoff control device according to a third embodiment of the present invention.

FIG. 4 is a system configuration diagram of a gas cutoff control device according to a fourth embodiment of the present invention.

FIG. 5 is a system configuration diagram of a conventional gas shutoff control device.

[Explanation of symbols]

 12 Flow rate measuring means 14 Fluid control valve 15 Driving means 17 Drive circuit unit 18 Driving control means 24 Gas appliance 30 General equipment

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Bunichi Shiba 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F-term (reference) 3H061 CC30 DD03 EC25 FC07 GG05 GG11 GG19 3K068 AA01 BB12 BB20 BB21 CA04

Claims (7)

[Claims] 1. A gas passage disposed in a building, a fluid control valve for opening and closing the gas passage, a drive unit for driving the fluid control valve, and a drive circuit for outputting a drive signal to the drive unit. Unit, drive control means for controlling the output of the drive circuit unit, flow rate measurement means for the gas flowing through the gas flow path, and arithmetic processing for calculating the flow rate by a signal from the flow rate measurement means and controlling the drive means Unit, a gas appliance provided on the downstream side of the gas flow path, a general device other than the gas appliance provided outside the building, and a drive operation of the fluid control valve by opening and closing the general device. Gas shut-off control device provided with a simple opening / closing means. 2. The gas shut-off control device according to claim 1, wherein the general equipment is a switch for lighting equipment. 3. The gas shutoff control device according to claim 1, wherein the general equipment is a power switch. 4. The gas shutoff control device according to claim 1, wherein the general equipment is a lock provided on a door at an entrance of the building. 5. The gas shut-off control device according to claim 4, wherein the opening / closing means operates by locking from outside. 6. The gas shutoff control device according to claim 1, wherein the fluid control valve is provided between the flow measuring means and the gas appliance. 7. The gas shutoff control device according to claim 1, wherein a signal for opening and closing operation of the general equipment is transmitted to the arithmetic processing unit by wireless means.