CN109469836A - Device, method and the computer readable storage medium of intelligent gas leakage detection and anti-leak - Google Patents
Device, method and the computer readable storage medium of intelligent gas leakage detection and anti-leak Download PDFInfo
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- CN109469836A CN109469836A CN201811328225.4A CN201811328225A CN109469836A CN 109469836 A CN109469836 A CN 109469836A CN 201811328225 A CN201811328225 A CN 201811328225A CN 109469836 A CN109469836 A CN 109469836A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
Abstract
The present invention provides a kind of intelligent gas leakage detection and device, method and the computer readable storage mediums of anti-leak, including, gas leakage detection device detects the concentration of gas leakage described in air by the corresponding gas sensor of gas leakage；Gas leakage cutting device, is set to the entrance of gas leakage, when starting, can close the entrance；First judging module, judge gas leakage described in air concentration whether be more than setting the first concentration threshold, if it is, send enable signals to gas leakage cutting device.Compared with prior art, technical solution of the present invention can also be solved effectively to leak, not will cause serious consequence, safety is higher in the case where surrounding does not have personnel.
Description
Technical field
The present invention relates to gas detection anti-leak field, in particular to the dress of a kind of intelligent gas leakage detection and anti-leak
It sets, method and computer readable storage medium.
Background technique
Natural gas has also progressed into every household during society gradually develops, and every year because natural gas leakage is sent out
Raw accident is also gradually to increase.
Natural gas warning device currently on the market only has warning function, needs artificially to carry out the valve of natural gas line
Close, if at home nobody when, do not close valve in time, then will result in a large amount of natural gas leaking, easily cause tight
The consequence of weight.
Summary of the invention
The present invention provides a kind of intelligent gas leakage detection and device, method and the computer-readable storage mediums of anti-leak
Matter has the characteristics that safety is higher.
The present invention also provides a kind of computer readable storage medium, has and be easy to implement above-mentioned intelligent gas leakage detection
And anti-leak the characteristics of.
A kind of intelligent gas leakage provided according to the present invention detects and the device of anti-leak, including,
Gas leakage detection device detects gas leakage described in air by the corresponding gas sensor of gas leakage
Concentration；
Gas leakage cutting device, is set to the entrance of gas leakage, when starting, can close the pipeline and enter
Mouthful；
First judging module, judge gas leakage described in air concentration whether be more than setting the first concentration threshold,
Gas leakage cutting device is enabled signals to if it is, sending；
Power supply module is each device and module for power supply, including step-down transformer T1, the single-phase bridge rectification being sequentially connected
Circuit, filter circuit and voltage regulator circuit.
The filter circuit includes first capacitor C1；The voltage regulator circuit includes three-terminal voltage-stabilizing pipe, including input terminal Vin,
Output end vo ut and ground terminal, wherein input terminal Vin connects the cathode of first diode D1, and output end vo ut meets first diode D2
Anode and by the second capacitor C2 be grounded；The one end the first capacitor C1 connects output end and three ends of single phase bridge type rectifier circu
The input terminal Vin of voltage-stabiliser tube, other end ground connection.
The gas leakage detection device includes gas leakage detection circuit；The gas leakage detection circuit is used and is partly led
Body gas sensitive device, including temperature-compensation circuit.
The gas leakage detection circuit includes methane gas detection circuit, using semiconductor methane gas sensor；Packet
It includes,
Gas sensor U1, including the first measurement pole VC, the second measurement pole VH, the first heating pole VRL and the second heating pole；
Working power after rectifying and voltage-stabilizing is connected with the first heating pole VRL, and meets the first measurement pole VC by first resistor R1；Institute
It states the second measuring electrode and connects measuring signal output end；Second heating pole ground connection；
The 7th resistance R7 and slide rheostat R10 being grounded after series connection；One end of the 7th resistance R7 and the second measurement
Pole VH is connected, and the other end is connected with one end of slide rheostat R10；The other end of the slide rheostat R10 is grounded；Further include
Third capacitor C3, one end are connected with one end of the 7th resistance R7, other end ground connection；
Heater circuit, including the 4th resistance R4, the 5th resistance R5 and the 8th resistance R8；The electricity of the 4th resistance R4 and the 5th
It is in parallel to hinder R5, one end is connected with the first heating pole VRL, and the other end is connected with one end of the 8th resistance R8；The 8th resistance R8
The other end pass through the 6th capacitor C6 be grounded；It further include eleventh resistor R11, it is in parallel with the 6th capacitor C6；4th resistance
R4 is thermistor.
The gas leakage cutting device includes solenoid valve, is set to the entrance of gas leakage, when starting, solenoid valve
Close entrance.
The solenoid valve uses direct-acting electromagnetic valve.
Further include,
Gas leakage absorption plant, internal storage has gas leakage solvent, can be to the leakage in air after unlatching
Gas is absorbed；
Second judging module, judge gas leakage described in air concentration whether be more than setting the second concentration threshold,
If it is, sending open signal to gas leakage absorption plant.
The gas leakage solvent includes the halogenated organic solvent for absorbing methane.
A kind of intelligent gas leakage provided according to the present invention detects and the method for anti-leak, leaks gas based on above-mentioned intelligence
The realization of the device of physical examination survey and anti-leak, including,
Whether the concentration of gas leakage is more than the first concentration threshold of setting in real-time detection air, if it is, starting
Gas leakage cutting device closes the entrance of gas leakage；
Whether the concentration of gas leakage is more than the second concentration threshold of setting in real-time detection air, if it is, opening
Gas leakage absorption plant absorbs the gas leakage in air.
The method also includes, after the device circuit power-up of the detection of intelligent gas leakage and anti-leak, carry out each pin and
The setting of each register, then carries out sequence power-up, pulse train first plus from narrow to wide, then high voltage again；
Inquire A/D conversion circuit mark whether set, if it is, call A/D conversion process subprogram carry out A/D conversion
And linearization process.
A kind of computer readable storage medium provided according to the present invention, be stored with load and execute convenient for processor it is above-mentioned
The computer program of any one method.
Compared with prior art, technical solution of the present invention can also effectively solve to let out in the case where surrounding does not have personnel
Leakage, not will cause serious consequence, safety is higher.
Detailed description of the invention
Fig. 1 is the methane gas detection circuit schematic illustration of a wherein embodiment of the invention.
Fig. 2 is the electrical block diagram of a wherein embodiment of the invention.
Fig. 3 is that wherein the intelligent gas leakage detection of an embodiment and the device circuit of anti-leak are powered on post-processing to the present invention
Flow chart.
Fig. 4 is the A/D conversion process subroutine flow chart of a wherein embodiment of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Any feature disclosed in this specification (including abstract and attached drawing) unless specifically stated can be equivalent by other
Or the alternative features with similar purpose are replaced.That is, unless specifically stated, each feature is a series of equivalent or class
Like an example in feature.
A kind of intelligent gas leakage provided according to the present invention detects and the device of anti-leak, including,
Gas leakage detection device detects gas leakage described in air by the corresponding gas sensor of gas leakage
Concentration；
Gas leakage cutting device, is set to the entrance of gas leakage, when starting, can close the pipeline and enter
Mouthful；
First judging module, judge gas leakage described in air concentration whether be more than setting the first concentration threshold,
Gas leakage cutting device is enabled signals to if it is, sending；
Power supply is each device and module for power supply, including step-down transformer T1, the single-phase bridge rectification being sequentially connected
Circuit, filter circuit and voltage regulator circuit.
It further include that detection warning device uses as an implementation as one embodiment of the present invention
STM32 development board come as detection warning device, detected by gas sensor the gas leakage to be detected in air (as
A kind of embodiment, is described in detail by natural gas of gas leakage) concentration.Gas sensor will be empty by level change
The concentration of natural gas is transmitted to STM32 in gas, and STM32 judges whether concentration of natural gas reaches first concentration threshold in air
(i.e. whether exceeded), if not up to (i.e. not exceeded), alarm lamp is green.If reaching first concentration threshold
(i.e. exceeded), then alarm, and alarm lamp becomes red, and starts gas leakage cutting device immediately.Meanwhile STM32
The light-emitting diode display of connection shows always concentration of natural gas and environment temperature in air.
Natural gas warning device currently on the market only has warning function, needs artificially to carry out the valve of natural gas line
Close, if at home nobody when, do not close valve in time, then will result in a large amount of natural gas leaking, easily cause tight
The consequence of weight.The increased leakage gas circuit breaker of the present patent application scheme can close automatically when detecting natural gas leaking
Natural gas valve is closed, is solved the problems, such as from source.Even if at home without personnel in the case where, can also effectively solve to leak,
It not will cause serious consequence, be compared to the function of universal warning device at present more fully, safety is higher.
As one embodiment of the present invention, as shown in Fig. 2, power supply of the invention is guaranteeing circuit normal work
In the case where, the voltage of circuit is reduced as far as possible.The step-down transformer of AC220V/AC12V has been used to obtain the alternating current of a 12V
Exchange, is then become direct current using single phase bridge type rectifier circu by pressure, is connected to three-terminal voltage-stabilizing circuit after through filtering, is exported
One lower DC voltage.Internal electric source decompression is handled ensure that the safety of product, reduces and causes danger when electric leakage
Possibility.
As one embodiment of the present invention, the filter circuit includes first capacitor C1；The voltage regulator circuit includes
Three-terminal voltage-stabilizing pipe, including input terminal Vin, output end vo ut and ground terminal, wherein input terminal Vin connects the negative of first diode D1
Pole, output end vo ut connect the anode of first diode D2 and are grounded by the second capacitor C2；First capacitor C1 one end order
The output end of phase bridge rectifier and the input terminal Vin of three-terminal voltage-stabilizing pipe, other end ground connection.
The gas leakage detection device includes gas leakage detection circuit；The gas leakage detection circuit is used and is partly led
Body gas sensitive device, including temperature-compensation circuit.
As one embodiment of the present invention, the gas leakage detection circuit includes methane gas detection circuit, is adopted
With semiconductor methane gas sensor.
Predominant gas is exactly methane in natural gas, therefore our gas sensor is the concentration of the methane of test, according to
The concentration of methane, to determine whether there are gas leakage.As an implementation, as shown in Figure 1, with MCU (such as single-chip microcontroller) for core
The heart detects methane gas by methane gas sensor and exports voltage signal corresponding with its concentration, send after amplifier amplifies
To analog-digital converter, the digital signal after conversion is sent into MCU, and MUC is sent into light-emitting diode display after being handled, corresponding gas
Concentration value is shown.Since the characteristic and environment temperature of semiconductor gas sensing device have certain dependence, so in circuit
Temperature-compensation circuit is added, to improve the precision and reliability of detection temperature.
As one embodiment of the present invention, as shown in Fig. 2, using the gas sensor of model TGS813 as first
Alkane semiconductor gas sensor, after the heater strip and electrode of TGS813 is separately energized, the voltage obtained from load resistance end is given
Compensation circuit, the comparator of compensated circuit to the voltage at both ends relatively after output result give operational amplifier LM107's
Input terminal.Operational amplification circuit is by adjusting resistance value size, so that the signal to input is suitably amplified.Amplified letter
It number is sent in the A/D module of STM32, then shows result using LED.
As one embodiment of the present invention, as shown in Fig. 2, the gas leakage detection circuit includes,
Gas sensor U1, including the first measurement pole VC, the second measurement pole VH, the first heating pole VRL and the second heating pole；
Working power after rectifying and voltage-stabilizing is connected with the first heating pole VRL, and meets the first measurement pole VC by first resistor R1；Institute
It states the second measuring electrode and connects measuring signal output end；Second heating pole ground connection；
The 7th resistance R7 and slide rheostat R10 being grounded after series connection；One end of the 7th resistance R7 and the second measurement
Pole VH is connected, and the other end is connected with one end of slide rheostat R10；The other end of the slide rheostat R10 is grounded；Further include
Third capacitor C3, one end are connected with one end of the 7th resistance R7, other end ground connection；
Heater circuit, including the 4th resistance R4, the 5th resistance R5 and the 8th resistance R8；The electricity of the 4th resistance R4 and the 5th
It is in parallel to hinder R5, one end is connected with the first heating pole VRL, and the other end is connected with one end of the 8th resistance R8；The 8th resistance R8
The other end pass through the 6th capacitor C6 be grounded；It further include eleventh resistor R11, it is in parallel with the 6th capacitor C6；4th resistance
R4 is thermistor.
As one embodiment of the present invention, using TGS813 as gas sensor, detection principle is based on gas
The chemisorption of quick element surface gas and desorption, the air-sensitive sub-prime of TGS813 gas sensor, use air
Low stannic oxide (the S of middle conductivitynO2).When there are detection object gas, the conductivity of sensor is with gas concentration in air
Increase and increases.The variation of conductivity can be converted to the corresponding output signal of the gas concentration using simple circuit.
As one embodiment of the present invention, circuit exports the constant voltage of 8V by three-terminal voltage-stabilizing pipe IC7808, supplies
To the heater circuit and detection circuit of sensor.Heater circuit is made of R4, R5, R8, in order to compensate for temperature and humidity to sensing
The influence of device characteristic, while in order to obtain higher precision, therefore heater circuit is compensated using thermistor R4.Heating electricity
Road needs the voltage of 5V that could work normally, so the resistance R8 that connects on the heater circuit of sensor enables heater circuit
Access the normal working voltage of 5V.Detection circuit is made of gas sensor TGS813, R7 and slide rheostat R10, output
Voltage enters MCU and is acquired, it is the pressure drop output at R7 and R10 resistance both ends.Imflammable gas is in contact simultaneously with sensor
And concentration, when exceeding respective concentration threshold value, the output voltage of detection circuit will be more than corresponding reference voltage, it is used MCU
Acquisition.
The gas leakage cutting device includes solenoid valve, is set to the entrance of gas leakage, when starting, solenoid valve
Close entrance.
As one embodiment of the present invention, the gas leakage cutting device uses direct-acting electromagnetic valve, when energization,
Electromagnetic coil generates electromagnetic force and closure member is lifted from valve seat, and valve is opened；When power-off, electromagnetic force disappears, and spring handle is closed
Part is pressed on valve seat, and valve is closed.This device is installed on natural gas line inlet, when detecting that leakage can close directly
Closing prevents from continuing leaking.
It further include gas absorbing device as one embodiment of the present invention, internal storage has gas leakage solvent, opens
Qi Hou can absorb the gas leakage in air；Second judging module judges gas leakage described in air
Whether concentration is more than the second concentration threshold of setting, if it is, sending open signal to gas leakage absorption plant.
By taking natural gas as an example, multicomponent selects the halogenated hydrocarbons of methane using the similar principle to mix for methane in natural gas
Equal organic solvents absorb methane.Since organic solvent has volatile characteristic mostly, organic solvent be placed on one it is close
In seal apparatus, when natural gas leaking has occurred, which is opened by the open signal received, it will be able to in air
Methane is effectively absorbed.Although this device cannot fully absorb the natural gas in air, sky can be greatly reduced
Concentration of natural gas in gas is easy to cause combustion of natural gas, explosion etc., meeting if concentration of natural gas is excessively high for a long time in air
The toxic gases such as carbon monoxide are generated, the security of the lives and property of people is easily threatened.Therefore, can greatly be subtracted using this device
Few various danger of bring because of natural gas leaking.
As another embodiment of the invention, STM32 judges whether concentration of natural gas reaches described second in air
Concentration threshold (i.e. whether exceeded), if not up to (i.e. not exceeded), alarm lamp is green.If it is dense to reach described second
It spends threshold value (i.e. exceeded), then alarms, alarm lamp becomes red, and starts gas leakage cutting device immediately.It is described
First concentration threshold and the second concentration threshold can be the same or different.Using which concentration threshold as police instruction standard,
It can self-setting according to actual needs.
As one embodiment of the present invention, truncation and absorption are set using the closable characteristic of energization of solenoid valve
Meter, the operation of solenoid valve is controlled using MCU, when concentration of methane gas threshold value reaches the first concentration threshold, MCU is sent
Signal is controlled to the solenoid valve of cutting device, closes air inlet；When concentration of methane gas threshold value reaches the second concentration threshold,
MCU sends control signal to the solenoid valve of absorption plant, opens absorption plant, and then absorbs the natural gas in air to reduce
It is dangerous.
As one embodiment of the present invention, as shown in Fig. 2, the corresponding first relay control of gas leakage cutting device
Circuit processed includes the first control relay, positive one end phase with the cathode of the 7th diode D7 and twelfth resistor R12 respectively
Even, cathode respectively with the anode of the 7th diode D7, one end of the 17th resistance R17 and the collector phase of third transistor Q3
Even；The other end of the twelfth resistor R12 connects the power supply after rectifying and voltage-stabilizing and one end of the 14th resistance R14 respectively；It is described
The other end of 14th resistance R14 connects the gas leakage cutting device signal control of the other end and MCU of the 17th resistance R17 respectively
Output end processed；The base stage of the third transistor Q3 is connected with its collector, emitter ground connection.
As one embodiment of the present invention, as shown in Fig. 2, the corresponding second relay control of gas leakage absorption plant
Circuit processed includes the second control relay, positive one end phase with the cathode of the 8th diode D8 and thirteenth resistor R13 respectively
Even, cathode respectively with the anode of the 8th diode D8, one end of the 18th resistance R18 and the collector phase of the 4th triode Q4
Even；The other end of the thirteenth resistor R13 connects the power supply after rectifying and voltage-stabilizing and one end of the 16th resistance R16 respectively；It is described
The other end of 16th resistance R16 connects the gas leakage absorption plant signal control of the other end and MCU of the 18th resistance R18 respectively
Output end processed；The base stage of the 4th triode Q4 is connected with its collector, emitter ground connection.
For aerial gas is leaked, increased absorption plant absorbs the natural gas in air, the absorption
The organic solvent that device uses is fully sealed, and only can just open in natural gas leakage, therefore is very safe.
As one embodiment of the present invention, when alarm, starts buzzer warning.
As one embodiment of the present invention, buzzer alarm circuit is as shown in Fig. 2, buzzer alarm circuit includes multi-resonant
Swing device U2, switching circuit, voltage regulator circuit, current amplification circuit and loudspeaker；The switching circuit includes the first triode Q1, collection
Electrode is connected with the VCC of multivibrator U2 and connects the power supply after rectifying and voltage-stabilizing, the buzzing alarm signal output ends of base stage and MCU
It is connected, emitter ground connection；The voltage regulator circuit includes the 4th diode D4, and anode meets the reset terminal RST of multivibrator U2, is born
Pole connects the power supply after rectifying and voltage-stabilizing；The second triode of current amplification circuit Q2, base stage connect multi-resonant by the 6th resistance R6
The output end OUT of device U2 is swung, and connects by 3rd resistor R3 the anode of power supply and loudspeaker LS1 after the rectifying and voltage-stabilizing, collection
Electrode connects the cathode of loudspeaker LS1, emitter ground connection.
As one embodiment of the present invention, warning device requires that the effect of continuous alarm can be played.In a kind of reality
It applies in mode, using NE555 as the power amplifier of core.NE555 is a kind of medium-scale integration device that analog- and digital- function combines.
Its cost is low, reliable performance, it is only necessary to which simple peripheral circuit achieves that multi-harmonic-oscillations, monostable flipflop and Schmidt
Trigger isopulse generates and translation circuit.
As one embodiment of the present invention, a triode Q1 is terminated in input and plays on-off action, works as gas concentration
Input high level starts warning circuit when excessively high, and D4 provides the voltage for being greater than 0.4v for zener diode for NE555.?
Output pin, that is, collector of NE555 multivibrator has met the triode Q2 for playing amplification, to guarantee that circuit has
Sufficiently large electric current goes drive the speaker.
For warning device, measuring device be using STM32 aerating dependent sensor by the way of, be compared at present more
Universal warning device, measurement result is more accurate, wrong probability occurs and substantially reduces.Simultaneously in LED simultaneous display air
Concentration of natural gas size, can allow the more intuitive size degree for experiencing natural gas leakage of user, thus more efficiently
It solves the problems, such as, drops to risk lower.
Since there may be the times the artificial odjective cause such as to fail to be detected for a long time for device, red warning lamp might have
The problem of damage, as a further improvement, if red light is not bright in 3 seconds, using the side of green light flashing when alarm is sounded
Formula.Ensure not only make a sound when device is alarmed, also has warning lamp flashing and remind, user can be allowed more to hold in this way
Easily there is natural gas leaking in discovery.
Natural gas leaking is occurring, in the event for causing personnel to be poisoned, wherein some is the reason is that alarm sound is too small,
Cause user not aside when can not discover natural gas leaking, especially old man more there are such situation, the warning devices
It is compared to current warning device, alarm sound is amid a sharp increase, so as to effectively avoid the above reason that natural gas is caused to let out
Leakage, and the problem of personnel do not discover in family.
A kind of intelligent gas leakage provided according to the present invention detects and the method for anti-leak, leaks gas based on above-mentioned intelligence
The realization of the device of physical examination survey and anti-leak, including,
Whether the concentration of gas leakage is more than the first concentration threshold of setting in real-time detection air, if it is, starting
Gas leakage cutting device closes the entrance of gas leakage；
Whether the concentration of gas leakage is more than the second concentration threshold of setting in real-time detection air, if it is, opening
Gas leakage absorption plant absorbs the gas leakage in air.
As shown in Figure 3 and Figure 4, the method also includes intelligent gas leakage detection and the device circuit power-up of anti-leak
Afterwards, each pin and the setting of each register are carried out, sequence power-up is then carried out, then pulse train first plus from narrow to wide adds again
High voltage with protection element, while reducing the starting current of gas sensor；
Inquire A/D conversion circuit mark whether set, if it is, call A/D conversion process subprogram carry out A/D conversion
With linearization process etc.；
It stores methane concentration and gives display unit and shown.
A kind of computer readable storage medium provided according to the present invention, be stored with load and execute convenient for processor it is above-mentioned
The computer program of any one method.
Claims (10)
1. the device of a kind of intelligence gas leakage detection and anti-leak, which is characterized in that including,
Gas leakage detection device detects the dense of gas leakage described in air by the corresponding gas sensor of gas leakage
Degree；
Gas leakage cutting device, is set to the entrance of gas leakage, when starting, can close the entrance；
First judging module, judge gas leakage described in air concentration whether be more than setting the first concentration threshold, if
It is then to send and enable signals to gas leakage cutting device；
Power supply module is each device and module for power supply, including step-down transformer T1, the single-phase bridge rectification electricity being sequentially connected
Road, filter circuit and voltage regulator circuit.
2. the device of intelligence gas leakage detection according to claim 1 and anti-leak, which is characterized in that the filtered electrical
Road includes first capacitor C1；The voltage regulator circuit includes three-terminal voltage-stabilizing pipe, including input terminal Vin, output end vo ut and ground terminal,
Wherein input terminal Vin connects the cathode of first diode D1, and output end vo ut connects the anode of first diode D2 and by the second electricity
Hold C2 ground connection；The one end the first capacitor C1 meets the output end of single phase bridge type rectifier circu and the input terminal Vin of three-terminal voltage-stabilizing pipe,
Other end ground connection.
3. the device of intelligence gas leakage detection according to claim 1 and anti-leak, which is characterized in that the leakage gas
Body detection device includes gas leakage detection circuit；The gas leakage detection circuit uses semiconductor gas sensing device, including temperature
Spend compensation circuit.
4. the device of intelligence gas leakage detection according to claim 3 and anti-leak, which is characterized in that the leakage gas
Physical examination slowdown monitoring circuit includes methane gas detection circuit, using semiconductor methane gas sensor；Including,
Gas sensor U1, including the first measurement pole VC, the second measurement pole VH, the first heating pole VRL and the second heating pole；Rectification
Working power after pressure stabilizing is connected with the first heating pole VRL, and meets the first measurement pole VC by first resistor R1；Described
Two measuring electrodes connect measuring signal output end；Second heating pole ground connection；
The 7th resistance R7 and slide rheostat R10 being grounded after series connection；One end of the 7th resistance R7 and the second measurement pole VH
It is connected, the other end is connected with one end of slide rheostat R10；The other end of the slide rheostat R10 is grounded；It further include third
Capacitor C3, one end are connected with one end of the 7th resistance R7, other end ground connection；
Heater circuit, including the 4th resistance R4, the 5th resistance R5 and the 8th resistance R8；The 4th resistance R4 and the 5th resistance R5
Parallel connection, one end are connected with the first heating pole VRL, and the other end is connected with one end of the 8th resistance R8；The 8th resistance R8's is another
One end is grounded by the 6th capacitor C6；It further include eleventh resistor R11, it is in parallel with the 6th capacitor C6；The 4th resistance R4 is
Thermistor.
5. the device of intelligence gas leakage detection according to claim 1 and anti-leak, which is characterized in that the leakage gas
Body cutting device includes solenoid valve, is set to the entrance of gas leakage, and when starting, solenoid valve closes entrance.
6. the device of intelligence gas leakage detection according to claim 5 and anti-leak, which is characterized in that the solenoid valve
Using direct-acting electromagnetic valve.
7. according to claim 1 to the detection of intelligent gas leakage described in one of 6 and the device of anti-leak, which is characterized in that also
Including,
Gas leakage absorption plant, internal storage has gas leakage solvent, can be to the gas leakage in air after unlatching
It is absorbed；
Second judging module, judge gas leakage described in air concentration whether be more than setting the second concentration threshold, if
It is then to send open signal to gas leakage absorption plant.
8. a kind of method of intelligence gas leakage detection and anti-leak, based on intelligent gas leakage detection as claimed in claim 7
And the device of anti-leak is realized, including,
Whether the concentration of gas leakage is more than the first concentration threshold of setting in real-time detection air, if it is, starting leakage
Gas circuit breaker closes the entrance of gas leakage；
Whether the concentration of gas leakage is more than the second concentration threshold of setting in real-time detection air, if it is, opening leakage
Gas absorbing device absorbs the gas leakage in air.
9. the method for intelligence gas leakage detection according to claim 9 and anti-leak, the method also includes intelligently being let out
After the device circuit power-up for leaking gas detection and anti-leak, each pin and the setting of each register are carried out, sequence power-up is then carried out,
Pulse train first plus from narrow to wide, then high voltage again；
Inquire A/D conversion circuit mark whether set, if it is, A/D conversion process subprogram is called to carry out A/D conversion and line
Propertyization processing.
10. a kind of computer readable storage medium, be stored with loaded convenient for processor and perform claim require it is any one in 8 to 9
The computer program of kind method.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335444A (en) * | 2019-05-14 | 2019-10-15 | 北京戴纳实验科技有限公司 | A kind of laboratory air leak diagnostic apparatus |
| CN113993223A (en) * | 2021-11-08 | 2022-01-28 | 成都信息工程大学 | Large-range pipeline detection and positioning system based on 5G double-ring communication |
| CN117664463A (en) * | 2024-02-01 | 2024-03-08 | 青岛华康塑料包装有限公司 | Food packaging bag air leakage detection assembly, detection device and detection method thereof |
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