CN109855122B - Control system of gas leakage prevention intelligent gas stove or gas water heater and operation method thereof - Google Patents
Control system of gas leakage prevention intelligent gas stove or gas water heater and operation method thereof Download PDFInfo
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- CN109855122B CN109855122B CN201910211764.8A CN201910211764A CN109855122B CN 109855122 B CN109855122 B CN 109855122B CN 201910211764 A CN201910211764 A CN 201910211764A CN 109855122 B CN109855122 B CN 109855122B
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Abstract
The control system of the gas water heater or the gas stove comprises a connecting gas pipe communicated with a gas inlet of the gas water heater or the gas stove, a three-prevention control device is arranged on the gas water heater or the gas stove and comprises a first electromagnetic valve and a second electromagnetic valve which are sequentially arranged on the connecting gas pipe, a working switch is electrically connected with a gas probe, a first timer, a second timer and a switch tertiary pipe in sequence through a pulser, a time button is electrically connected with the switch tertiary pipe through the first timer and the second electromagnetic valve, and a transformer is electrically connected with the first timer, the second timer and the switch tertiary pipe respectively. When the gas leakage prevention device is used, if gas leakage occurs, the two-way closing of the pulser can be realized for the first electromagnetic valve and the second electromagnetic valve, so that the pulser is reset in a power-off mode, gas leakage prevention and explosion prevention are reliably realized, gas explosion accidents are effectively controlled and prevented, and the safety performance is improved.
Description
Technical Field
The invention relates to a gas water heater or a gas stove, in particular to a control system of an anti-gas leakage intelligent gas stove or a gas water heater and an operation method thereof.
Background
At present, gas cookers are basically provided with accidental flameout protection structures, the gas cookers are generally called as safety cookers, and the existing partial safety cookers are also provided with timing fire-stopping devices. However, the gas leakage prevention, explosion prevention, forgetting to shut down fire and protecting cannot be achieved safely, so that the accident is frequently caused by hidden danger.
Chinese patent document No. CN 2367928Y discloses a gas furnace with a timing flameout device in 2000-01/22, which comprises a furnace surface frame, a gas switch, an air door, and a burner, wherein a gas pipeline is connected in series with an electromagnetic valve, the electromagnetic valve is also connected with a pulse controller, and a delay maintaining circuit and a boost recoil circuit are arranged in the pulse controller to realize ignition and flameout control; the timer is connected with the pulse controller through a transmission line to transmit a timing valve closing signal.
Disclosure of Invention
The invention aims to provide a safe and reliable control system of an anti-leakage intelligent gas stove or a gas water heater and an operation method thereof, so as to overcome the defects in the prior art.
The control system of the gas leakage-proof intelligent gas stove or the gas water heater is designed according to the purpose, comprises a connecting gas pipe communicated with a gas inlet of the gas water heater or the gas stove, and is structurally characterized in that a three-prevention control device is arranged on the gas water heater or the gas stove, the three-prevention control device comprises a first electromagnetic valve and a second electromagnetic valve which are sequentially arranged on the connecting gas pipe, a working switch is sequentially and electrically connected with a gas probe, a first timer, a second timer and a switch tertiary pipe through a pulser, a time button is electrically connected with the switch tertiary pipe through the first timer and the second timer, a transformer is respectively and electrically connected with the first timer, the second timer and the switch tertiary pipe, the switch tertiary pipe is respectively and electrically connected with a relay and the pulser, the relay is electrically connected with the pulser, and the pulser is respectively and electrically connected with the first electromagnetic valve and the second electromagnetic valve, the backup battery is electrically connected with the relay.
Further, the control system of the intelligent gas stove or the gas water heater capable of preventing gas leakage further comprises a display, and the first timer is electrically connected with the display.
Further, the second electromagnetic valve is arranged in the shell of the gas water heater or the gas stove, the first electromagnetic valve is arranged outside the shell of the gas water heater or the gas stove, and the gas probe is arranged in the shell of the gas water heater or the gas stove or outside the shell.
Further, the control system of the intelligent gas stove or the gas water heater with gas leakage prevention further comprises a third electromagnetic valve arranged on the connecting gas pipe, the third electromagnetic valve is arranged in front of or behind the first electromagnetic valve, and the pulser is electrically connected with the third electromagnetic valve.
An operation method of a control system of an anti-gas leakage intelligent gas stove or a gas water heater is characterized by comprising the following steps:
firstly, a manufacturer defaults and sets the working time of a gas water heater or a gas stove through a first timer, then a user manually presses a working switch to start, a pulser output signal wakes up the first timer to start timing, the first timer synchronously outputs a timing signal to a second timer, and then the gas water heater or the gas stove normally works until the working time countdown is zero;
or, firstly, the manufacturer defaults to set the working time of the gas water heater or the gas stove through a first timer, then a user manually presses a working switch to start, and the pulser outputs a signal to wake up the first timer to start timing and then the gas water heater or the gas stove normally works until the working time is counted down to zero;
step two, a first timer instruction signal is sent to a pulser to control a first electromagnetic valve and a second electromagnetic valve to be closed respectively, the second timer controls a switch triode to be cut off for 0.1-2 seconds, at the moment, a relay is powered off, a normally open contact of the relay returns to a normally closed contact time, the pulser is reset when the power is off, and the first electromagnetic valve and the second electromagnetic valve are closed when the power is off respectively;
step three, when the gas water heater or the gas stove normally runs and works, the starting switch is closed, and the pulser controls the first electromagnetic valve and the second electromagnetic valve to be closed respectively;
fourthly, the first timer controls the second timer to control the switch triode to be cut off for 0.1-2 seconds, and when the relay is powered off, the normally open contact of the relay returns to the normally closed contact time;
step five, the pulser is reset in a power-off mode, and the first electromagnetic valve and the second electromagnetic valve are closed in a power-off mode respectively;
step six, when the gas water heater or the gas stove normally runs and works and unexpected flameout occurs, the pulser controls the first electromagnetic valve and the second electromagnetic valve to be respectively closed, the first timer controls the second timer to control the switch triode to be cut off for 0.1-2 seconds, the relay is powered off, the normally open contact of the relay returns to the normally closed contact time, the pulser is powered off and reset, and the first electromagnetic valve and the second electromagnetic valve are respectively powered off and closed;
and seventhly, when the gas probe detects gas leakage, the gas probe controls the pulser to respectively close the first electromagnetic valve and the second electromagnetic valve, at the moment, the first timer controls the second timer to control the switch triode to be cut off for 0.1-2 seconds, the relay is powered off, the normally open contact of the relay returns to the normally closed contact time, the pulser is powered off and reset, and the first electromagnetic valve and the second electromagnetic valve are respectively powered off and closed again.
Further, when the gas water heater or the gas stove has a timing function, a user adjusts the maximum set time by pressing the timing on the time button, the first timer is reset and outputs an instruction signal to the pulser to control the first electromagnetic valve and the second electromagnetic valve to be closed respectively, the first timer instructs the second timer to control the switch triode to be closed for 0.1-2 seconds, the relay is powered off, the normally open contact of the relay returns to the normally closed contact time, the pulser is powered off and resets, and the first electromagnetic valve and the second electromagnetic valve are powered off respectively and then closed.
Further, when the gas water heater or the gas stove has no timing function, and when the gas probe detects gas leakage, the gas probe controls the pulser to respectively close the first electromagnetic valve and the second electromagnetic valve, meanwhile, the gas probe controls the switch triode to be stopped for 0.1-2 seconds, the relay is powered off, the normally open contact of the relay returns to the normally closed contact time, the pulser is powered off and reset, and the first electromagnetic valve and the second electromagnetic valve are respectively powered off and then closed.
Further, when power is cut off, the relay loses power, the normally open contact of the relay returns to the normally closed contact state, and the relay is communicated with the standby battery.
According to the invention, the gas probe, the first electromagnetic valve, the second electromagnetic valve, the first timer, the second timer, the switching triode, the relay and the standby power supply are added on the traditional gas water heater or the gas stove, when in use, if gas leakage occurs, the two-way closing of the pulser for controlling whether the first electromagnetic valve and the second electromagnetic valve work or not can be realized, so that the pulser is reset in a power-off mode, therefore, the gas leakage prevention, explosion prevention and forgetting prevention timing fire shutoff protection are reliably realized, the gas explosion accident is effectively controlled and prevented, and the safety performance is improved.
The connecting air pipe is also provided with a third electromagnetic valve which is arranged in front of or behind the first electromagnetic valve, and the pulser is electrically connected with the third electromagnetic valve; when first solenoid valve appears damaging and does not close, this product also can turn off the gas through the third solenoid valve to the security performance of this product has further been improved.
The invention has the characteristics of safety and reliability.
Description of the drawings.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a control block diagram of the first embodiment of the present invention.
Fig. 3 is a control block diagram of a second embodiment of the present invention.
In the figure: the gas stove comprises a gas stove 1, a first electromagnetic valve 2, a gas probe 3, a second electromagnetic valve 4, a transformer 5, a pulser 6, a connecting air pipe 7, a working switch 8, a fire detection signal 9, a standby battery 10, a relay 11, a switch triode 12, a first timer 13, a second timer 14, a time increasing key 15 and a third electromagnetic valve 22.
Detailed description of the preferred embodiments.
The invention is further described with reference to the following figures and examples.
First embodiment
Referring to fig. 1-2, the control system of the intelligent safety gas stove comprises a connecting gas pipe 7 communicated with a gas inlet of the gas stove 1, a three-prevention control device is arranged on the gas stove 1, the three-prevention control device comprises a first electromagnetic valve 2 and a second electromagnetic valve 4 which are sequentially arranged on the connecting gas pipe 7, a working switch 8 is electrically connected with a gas probe 3, a first timer 13, a second timer 14 and a switch tertiary pipe 12 in sequence through a pulser 6, a time button 15 is electrically connected with the switch tertiary pipe 12 through the first timer 13 and the second electromagnetic valve 4, a transformer 5 is electrically connected with the first timer 13, the second timer 14 and the switch tertiary pipe 12 respectively, the switch tertiary pipe 12 is electrically connected with a relay 11 and the pulser 6 respectively, the relay 11 is electrically connected with the pulser 6, the pulser 6 is electrically connected with the first electromagnetic valve 2 and the second electromagnetic valve 4 respectively, the backup battery 10 is electrically connected to the relay 11.
In this embodiment, the control system of the intelligent safety gas stove further includes a display, and the first timer 13 is electrically connected to the display.
The second electromagnetic valve 4 is arranged in the shell of the gas stove 1, the first electromagnetic valve 2 is arranged outside the shell of the gas stove 1, and the gas probe 3 is arranged in the shell or outside the shell of the gas stove 1.
An operation method of a control system of an intelligent safety gas stove comprises the following steps:
firstly, a manufacturer defaults and sets the working time of a gas stove through a first timer 13, then a user manually presses a working switch 8 to start, a pulser 6 outputs a signal to wake up the first timer 13 to start timing, the first timer 13 synchronously outputs a timing signal to a second timer 14, and then the gas stove works normally until the working time is counted down to zero;
or, firstly, the manufacturer defaults to set the working time of the gas stove through the first timer 13, then the user manually presses the working switch 8 to start, the pulser 6 outputs a signal to wake up the first timer 13 to start timing, and then the gas stove normally works until the working time is counted down to zero.
In the present embodiment, since the operation time is first set by the manufacturer by default through the first timer 13, the operation time may be also referred to as an initial protection operation time, which is intended to improve the function of protecting the gas range.
And step two, the first timer 13 outputs an instruction signal to the pulser 6 to control the first electromagnetic valve 2 and the second electromagnetic valve 4 to be closed respectively, the first timer controls the second timer 13 to control the switch triode 12 to be cut off for 0.1-2 seconds, at the moment, the relay 11 is powered off, the normally open contact of the relay 11 returns to the normally closed contact state, the pulser 6 is powered off and reset, and the first electromagnetic valve 2 and the second electromagnetic valve 4 are powered off and closed respectively.
And step three, when the gas stove normally runs and works, the working switch 8 is closed, and the pulser 6 controls the first electromagnetic valve 2 and the second electromagnetic valve 4 to be closed respectively.
And fourthly, the first timer controls the second timer 14 to control the switch triode 12 to be cut off for 0.1-2 seconds, and when the relay 11 is powered off, the normally open contact of the relay 11 returns to the normally closed contact state for time.
And step five, the pulser 6 is reset in a power-off mode, and the first electromagnetic valve 2 and the second electromagnetic valve 4 are closed in a power-off mode respectively.
Step six, when the gas stove works normally and unexpected flameout occurs, the pulser 6 controls the first electromagnetic valve 2 and the second electromagnetic valve 4 to be respectively closed, the first timer 13 controls the second timer 14 to control the switch triode 12 to be cut off for 0.1-2 seconds, the relay 11 is powered off, the normally open contact of the relay 11 returns to the normally closed contact time, the pulser 6 is powered off and reset, and the first electromagnetic valve 2 and the second electromagnetic valve 4 are respectively powered off and closed.
Step seven, when the gas probe 3 detects gas leakage, the gas probe 3 controls the pulser 6 to close the first electromagnetic valve 2 and the second electromagnetic valve 4 respectively, the first timer 13 controls the second timer 14 to control the switch triode 12 to be cut off for 0.1-2 seconds, the relay 11 is powered off, the normally open contact of the relay 11 returns to the normally closed contact time, the pulser 6 is powered off and reset, and the first electromagnetic valve 2 and the second electromagnetic valve 4 are powered off respectively and closed again.
When the gas stove has a timing function, a user increases and adjusts the maximum set time by pressing the timing button 15, the first timer 13 is reset and outputs an instruction signal to the pulser 6 to control the first electromagnetic valve 2 and the second electromagnetic valve 4 to be closed respectively, the first timer 13 controls the second timer 14 to control the switch triode 12 to be closed for 0.1-2 seconds, the relay 11 is powered off, the normally open contact of the relay 11 returns to the normally closed contact time, the pulser 6 is powered off and reset, and the first electromagnetic valve 2 and the second electromagnetic valve 4 are powered off respectively and then closed.
During the use, when the first timer 13 is damaged, if the second timer 14 is lacked, the product can not turn off the gas, so the second timer 14 must be reserved, in short, when the first timer 13 is damaged and the second timer 14 is normal, the product can control the fire.
Normally, the gas stove is powered by mains supply.
When having a power failure, relay 11 loses the electricity, and relay 11's normally open contact gets back to normally closed contact state, and relay 11 automatic intercommunication backup battery 10, at this moment, this product can use the battery ignition to move after having a power failure.
In this embodiment, the first battery valve 2 and the second electromagnetic valve 4 are normally closed, and the commercial power supplies a working power supply during normal operation, and the standby power supplies a ventilation ignition supply during power failure. The backup power source is usually a dry battery or a rechargeable battery.
When the gas stove works, the working switch 8 is started, the first electromagnetic valve 2 and the second electromagnetic valve 4 are opened, fire is ignited, when flame signals are detected to keep burning, the pulser 6 outputs signals to wake up the first timer 13 to start countdown for 40 minutes, meanwhile, the communication synchronously outputs timing signals of the first timer 13 to the second timer 14, when the working time of the second timer 14 controlled by the first timer 13 is zero, the first timer 13 outputs instruction signals to the pulser 6 to control the first electromagnetic valve 2 and the second electromagnetic valve 4 to be closed, the second timer 14 controls the switch triode 12 to be cut off for 0.1-2 seconds, the relay 11 is powered off, the normally open contact of the relay 11 returns to the normally closed contact time, the pulser 6 is powered off and reset, and the first electromagnetic valve 2 and the second electromagnetic valve 4 are respectively powered off and closed again.
In the working time of normal operation of the gas stove, when the working switch 8 is closed, the first route pulser 6 controls the first electromagnetic valve 2 and the second electromagnetic valve 4 to be closed respectively, the second route controls the second timer 14 to control the switch triode 12 to be cut off for 0.1-2 seconds through the first timer 13, the relay 11 loses power, the normally open contact of the relay 11 returns to the normally closed contact time, the pulser 6 loses power and resets, and the first electromagnetic valve 2 and the second electromagnetic valve 4 lose power respectively and are closed again.
When the gas stove normally runs in the working time and is flamed out accidentally, the first route pulser 6 controls the first electromagnetic valve 2 and the second electromagnetic valve 4 to be closed respectively, the second route controls the second timer 14 to control the switch triode 12 to be cut off for 0.1-2 seconds through the first timer 13, the relay 11 is powered off, the normally open contact of the relay 11 returns to the normally closed contact time, the pulser 6 is powered off and reset, and the first electromagnetic valve 2 and the second electromagnetic valve 4 are powered off respectively and closed again.
When the gas probe 3 detects gas leakage, the first path of gas probe 3 controls the pulser 6 to close the first electromagnetic valve 2 and the second electromagnetic valve 4, the second path of gas probe controls the second timer 14 to control the switch triode 12 to cut off for 0.1-2 seconds through the first timer 13, the relay 11 loses power, the normally open contact of the relay 11 returns to the normally closed contact time, the pulser 6 loses power and resets, and the first electromagnetic valve 2 and the second electromagnetic valve 4 lose power and close again.
When the gas stove has no timing function and the gas probe 3 detects gas leakage, the gas probe 3 controls the pulser 6 to respectively close the first electromagnetic valve 2 and the second electromagnetic valve 4, meanwhile, the gas probe 3 directly controls the switch triode 12 to be cut off for 0.1-2 seconds, the relay 11 is powered off, the normally open contact of the relay 11 returns to the normally closed contact time, the pulser 6 is powered off and reset, and the first electromagnetic valve 2 and the second electromagnetic valve 4 are respectively powered off and then closed.
When power is cut off, the relay 11 loses power, the normally open contact of the relay 11 returns to the normally closed contact state, and the standby battery 10 is automatically connected.
The time key 15 can adjust the working time in an plus-minus mode, when the working time is set to the maximum time, the first timer 13 is cleared and outputs an instruction to the pulser 6 to control the first electromagnetic valve 2 and the second electromagnetic valve 4 to be closed, the first timer 13 synchronously outputs a timing signal to the second timer 14 to control the switch triode 12 to be cut off for 0.1-2 seconds, the relay 11 is powered off, the normally open contact of the relay 11 returns to the normally closed contact time, the pulser 6 is powered off and reset, and the first electromagnetic valve 2 and the second electromagnetic valve 4 are powered off and closed again. The reason for this is: once the adjusting key is out of control during the increase of the working time, the adjusting key is closed in advance, so that the fire caused by the out of control can be avoided.
In this embodiment, the product may be preset with: the fire can be automatically turned off after the normal operation for 40 minutes after the ignition every time, and the user can set the following parameters: the fire is turned off regularly after 1 minute to 4 hours. And no gas leaks when the gas connecting pipe of the product is cut off. In addition, when the product is used, once gas leakage occurs, the gas inlet is automatically cut off to ensure safety.
In the embodiment, the fuel gas comprises natural gas, liquefied gas and artificial gas. The first solenoid valve 2 and the second solenoid valve 4 are normally closed.
Second embodiment
Referring to fig. 3, in the present embodiment, the intelligent safety gas stove further includes a third electromagnetic valve 22 disposed on the connecting gas pipe 7, the third electromagnetic valve 22 is disposed in front of or behind the first electromagnetic valve 2, and the pulser 6 is electrically connected to the third electromagnetic valve 22.
In the present embodiment, the third electromagnetic valve 22 is normally in the closed state.
The rest of the parts which are not described in the first embodiment are not described in detail.
Third embodiment
In this embodiment, practice repeatedly proves that the above technical solution can be completely implemented on a gas water heater, and basically the same technical effect as the technical solution implemented on a gas stove can be obtained without making additional technical changes.
The rest of the parts which are not described in the second embodiment are not described in detail.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A control system of an anti-gas leakage intelligent gas stove or a gas water heater comprises a connecting gas pipe (7) communicated with a gas inlet of the gas water heater or the gas stove (1), and is characterized in that a three-prevention control device is arranged on the gas water heater or the gas stove (1),
the three-proofing control device comprises a first electromagnetic valve (2) and a second electromagnetic valve (4) which are sequentially arranged on a connecting air pipe (7),
the working switch (8) is electrically connected with the gas probe (3), the first timer (13), the second timer (14) and the switch triode (12) in turn through the pulser (6),
the time key (15) is electrically connected with the switch triode (12) through a first timer (13) and a second timer (14),
the transformer (5) is respectively and electrically connected with the first timer (13), the second timer (14) and the switch triode (12),
the switch triode (12) is respectively and electrically connected with the relay (11) and the pulser (6),
the relay (11) is electrically connected with the pulser (6),
the pulser (6) is respectively and electrically connected with the first electromagnetic valve (2) and the second electromagnetic valve (4),
the backup battery (10) is electrically connected to the relay (11).
2. The control system of the intelligent gas stove or the gas water heater with the air leakage prevention function as claimed in claim 1, further comprising a display, wherein the first timer (13) is electrically connected with the display and the second timer (14).
3. The control system of the gas leakage prevention intelligent gas stove or the gas water heater according to claim 1, wherein the second electromagnetic valve (4) is arranged in a shell of the gas water heater or the gas stove (1), the first electromagnetic valve (2) is arranged outside the shell of the gas water heater or the gas stove (1), and the gas probe (3) is arranged in the shell of the gas water heater or the gas stove (1) or outside the shell.
4. The control system of the leak-proof intelligent gas stove or the gas water heater according to any one of claims 1 to 3, further comprising a third electromagnetic valve (22) arranged on the connecting gas pipe (7), wherein the third electromagnetic valve (22) is arranged in front of or behind the first electromagnetic valve (2), and the pulser (6) is electrically connected with the third electromagnetic valve (22).
5. An operation method of the control system of the gas leakage prevention intelligent gas stove or the gas water heater according to claim 1, characterized by comprising the following steps:
firstly, a manufacturer defaults and sets the working time of a gas water heater or a gas stove through a first timer (13), then a user manually presses a working switch (8) to start the gas water heater or the gas stove, a pulser (6) outputs a signal to wake up the first timer (13) to start timing, the first timer (13) synchronously outputs a timing signal to a second timer (14), and then the gas water heater or the gas stove normally works until the working time is counted down to zero;
or, firstly, the factory defaults to set the working time of the gas water heater or the gas stove through the first timer (13), then a user manually presses the working switch (8) to start the operation, the pulser (6) outputs a signal to wake up the first timer (13) to start timing, and then the gas water heater or the gas stove normally works until the working time countdown is zero;
step two, the first timer (13) outputs an instruction signal to the pulser (6) to control the first electromagnetic valve (2) and the second electromagnetic valve (4) to be closed respectively, the first timer controls the second timer (13) to control the switch triode (12) to be cut off for 0.1-2 seconds, at the moment, the relay (11) is powered off, the normally open contact of the relay (11) returns to the normally closed contact time, the pulser (6) is powered off and reset, and the first electromagnetic valve (2) and the second electromagnetic valve (4) are powered off and closed respectively;
step three, when the gas water heater or the gas stove works normally, the working switch (8) is closed, and the pulser (6) controls the first electromagnetic valve (2) and the second electromagnetic valve (4) to be closed respectively;
fourthly, the first timer controls the second timer (14) to control the switch triode (12) to be cut off for 0.1-2 seconds, and when the relay (11) is powered off, the normally open contact of the relay (11) returns to the normally closed contact for time;
step five, the pulser (6) is reset in a power-off mode, and the first electromagnetic valve (2) and the second electromagnetic valve (4) are closed in a power-off mode respectively;
step six, when a gas water heater or a gas stove works normally and is flamed out accidentally, the pulser (6) controls the first electromagnetic valve (2) and the second electromagnetic valve (4) to be closed respectively, the first timer (13) controls the second timer (14) to control the switch triode (12) to be cut off for 0.1-2 seconds, the relay (11) is powered off, the normally open contact of the relay (11) returns to the normally closed contact time, the pulser (6) is reset when the power is lost, and the first electromagnetic valve (2) and the second electromagnetic valve (4) are respectively closed when the power is lost;
seventhly, when the gas probe (3) detects gas leakage, the gas probe (3) controls the pulser (6) to close the first electromagnetic valve (2) and the second electromagnetic valve (4) respectively, at the moment, the first timer (13) controls the second timer (14) to control the switch triode (12) to be cut off for 0.1-2 seconds, the relay (11) is powered off, the normally open contact of the relay (11) returns to the normally closed contact time, the pulser (6) is reset after being powered off, and the first electromagnetic valve (2) and the second electromagnetic valve (4) are closed again after being powered off respectively.
6. The operation method of the gas leakage prevention intelligent gas stove or the control system of the gas water heater according to claim 5 is characterized in that when the gas water heater or the gas stove has a timing function, a user presses a timing button (15) to increase and adjust the timing to the maximum setting time, the first timer (13) is cleared and outputs an instruction signal to the pulser (6) to control the first electromagnetic valve (2) and the second electromagnetic valve (4) to be closed respectively, the first timer (13) controls the second timer (14) to control the switch triode (12) to be closed for 0.1-2 seconds, the relay (11) is de-energized, the normally open contact of the relay (11) returns to the normally closed contact for time, meanwhile, the pulser (6) is de-energized and reset, and the first electromagnetic valve (2) and the second electromagnetic valve (4) are respectively de-energized and then closed.
7. The operation method of the gas leakage prevention intelligent gas stove or the control system of the gas water heater according to claim 5 is characterized in that when the gas water heater or the gas stove has no timing function and when the gas probe (3) detects gas leakage, the gas probe (3) controls the pulser (6) to respectively close the first electromagnetic valve (2) and the second electromagnetic valve (4), meanwhile, the gas probe (3) directly controls the switch triode (12) to be cut off for 0.1-2 seconds, the relay (11) loses power, the normally open contact of the relay (11) returns to the normally closed contact for time, the pulser (6) loses power and resets, and the first electromagnetic valve (2) and the second electromagnetic valve (4) lose power and then close.
8. The operation method of the control system of the intelligent gas stove or the gas water heater with the air leakage prevention function according to the claim 5 is characterized in that when power is cut off, the relay (11) loses power, the normally open contact of the relay (11) returns to the normally closed contact state, and the relay (11) is communicated with the standby battery (10).
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| CN114383047B (en) * | 2022-01-11 | 2024-03-08 | 丹东太智厨房设备有限公司 | Double-control emergency safety protection system for gas household facilities |
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| CN1114793C (en) * | 1999-01-28 | 2003-07-16 | 陈玉山 | Computer gas stove |
| KR20040001061A (en) * | 2002-06-26 | 2004-01-07 | 이어진 | Apparatus for shutting off leakage of gas in gasrange |
| CN205979893U (en) * | 2016-08-23 | 2017-02-22 | 朱殿臣 | Gas -tight pipe gas leakage gas -cooker |
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