CN207541012U - Marine cabin explosion gas concentration measurement system - Google Patents
Marine cabin explosion gas concentration measurement system Download PDFInfo
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- CN207541012U CN207541012U CN201721619340.8U CN201721619340U CN207541012U CN 207541012 U CN207541012 U CN 207541012U CN 201721619340 U CN201721619340 U CN 201721619340U CN 207541012 U CN207541012 U CN 207541012U
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Abstract
The utility model discloses a kind of marine cabin explosion gas concentration measurement system, including gas detecting instrument, level-one alarm control module, secondary alarm control module, level-one warning device, secondary alarm device and gas dilution device；After the concentration signal received is higher than the first reference signal, level-one alarm control module output first control signal control level-one alarm activation；After the concentration signal received is higher than the second reference signal, secondary alarm control module output second control signal control secondary alarm device starts；Gas dilution device starts after receiving second control signal simultaneously；Concentration dilution is carried out to gas while so as to send out alarm when leaking flammable explosive gas, realizes the pretreatment to gas.
Description
Technical field
The utility model is related to detection of gas technical field, more specifically, it relates to a kind of marine cabin explosion gas
Concentration measurement system.
Background technology
The main danger of ships that transport shipped goods has：Inflammable and explosive property, toxic, chemical reactivity, corrosivity, dirt
Metachromia etc..In some relatively closed cabins, if the leakage of flammable explosive gas occurs, concentration can increase in cabin, when up to
During to explosible limit concentration, it is most likely that the danger of gas burst occurs, serious consequence is caused to the staff in cabin.
The Chinese utility model patent of Publication No. CN204203678U discloses a kind of ship hazardous gas detection alarm
System is made of control device, display device, hazardous gas detection device, warning circuit, ship craft integrated detecting system etc.；Respectively
Device is interconnected to constitute Ethernet by communication cable.
Although the ship hazardous gas detecting and warning system can send out alarm to staff in time when gas leaks,
But certain time is needed due to leaking into staff's maintenance of showing up from gas, gas may leaked also in this section, if
Do not take pretreatment measure, it will increase the possibility of explosion and staff show up after danger.
Utility model content
For the deficiency that the prior art arrives, the utility model aim is that providing a kind of marine cabin explosion gas concentration surveys
Amount system has the function of to being pre-processed when flammable explosive gas leaks.
To achieve the above object, the following technical solution of the novel offer of this experiment：
A kind of marine cabin explosion gas concentration measurement system, it is characterised in that：Including
It is set in cabin, for detection gas concentration and exports the gas detecting instrument of concentration signal；
In response to concentration signal, and by concentration signal value with exporting the from after the size of the first baseline signal value that sets
The level-one alarm control module of one control signal；
In response to concentration signal, and the second reference signal higher than the first baseline signal value that concentration signal value is set with oneself
The size of value exports the secondary alarm control module of second control signal more afterwards；
The level-one warning device of the first warning message is sent out in response to first control signal；
The secondary alarm device of the second warning message is sent out in response to second control signal；
In response to the gas dilution device of second control signal.
So set, after the concentration signal received is higher than the first reference signal, level-one alarm control module output the
One control signal control level-one alarm activation；After the concentration signal received is higher than the second reference signal, secondary alarm
Control module output second control signal control secondary alarm device starts；Gas dilution device receives second control signal simultaneously
After start；Concentration dilution is carried out to gas while so as to send out alarm when leaking flammable explosive gas, is realized to gas
Pretreatment.
Further setting：The level-one alarm control module includes
Relatively and go out the first judgement letter in response to concentration signal, and by the size of concentration signal value and the first baseline signal value
Number the first comparison circuit；
It is coupled to first comparison circuit and responds first and judge that the first of signal output first control signal performs electricity
Road.
So set, signal is judged to the first execution circuit by the first comparison circuit output first, so as to control first
Execution circuit exports first control signal to level-one warning device, realizes and level-one warning device is automatically controlled using circuit.
Further setting：The secondary alarm control module includes
In response to concentration signal, and the size of concentration signal value and the second reference signal is exported into the second judgement more afterwards and is believed
Number the second comparison circuit；
It is coupled to second comparison circuit and responds second and judge that the second of signal output second control signal performs electricity
Road.
So set, signal is judged to the second execution circuit by the second comparison circuit output second, so as to control second
Execution circuit exports second control signal to secondary alarm device, realizes and secondary alarm device is automatically controlled using circuit.
Further setting：The gas dilution device includes inert gas air accumulator and exhaust pipe；The exhaust pipe connection
It the inert gas air accumulator and is connected with the engine room inside；It is provided on the exhaust pipe and is controlled by second execution
Circuit, the solenoid valve for being vented and holding one's breath.
So set, by inert gas air accumulator discharge inert gas, so as to by the flammable explosive gas in cabin into
Row dilution, so as to reduce the risk of explosion.
Further setting：It further includes in response to second control signal, for flammable explosive gas to be discharged from the cabin
Exhaust apparatus.
So set, by adding exhaust apparatus, the flammable explosive gas in cabin is discharged after dilution, thus into one
Step reduces gas concentration.
Further setting：The exhaust apparatus includes exhaust fan and exhaust tube；In described exhaust tube one end and the cabin
Portion connects, and the other end connects the exhaust fan.
So set, negative pressure is generated when starting by exhaust fan, so as to make flammable explosive gas from cabin through exhaust tube
The external world is discharged into, so as to reduce the concentration of gas.
Further setting：The exhaust fan and the exhaust tube are arranged on the top of the cabin；The exhaust pipe goes out
Mouth is close to the bottom surface of the cabin.
So set, by the way that exhaust pipe is arranged on cabin lower position, exhaust tube is arranged on nacelle top, is made inflammable
It is discharged cabin from bottom to up after explosion hazard gases dilution, so as to fulfill gas is diluted and discharged rapidly.
Further setting：The sudden strain of a muscle for sending out visual alarm is in series in the current supply circuit of the level-one warning device
The bright lamp L and first switch KT1-1 for being controlled by first execution circuit.
So set, after KT1-1 is connected, flashing lamp L must establish beginning flicker by cable, be leaked so as to fulfill in flammable explosive gas
When alarm function.
Further setting：It is in series with to make a sound alarm signal in the current supply circuit of the secondary alarm device
The buzzer H and second switch KT2-1 for being controlled by second execution circuit.
So set, after KT2-1 is connected, buzzer H must establish the beginning by cable and make a sound alarm, so as to fulfill inflammable and explosive
Alarm function when gas leaks and concentration is higher.
In summary：When the first comparison circuit receives concentration signal of the gas detecting instrument output higher than the first reference signal
When, output first judges signal to the first execution circuit, and the first execution circuit output first control signal control flashing lamp L is opened
It is dynamic；When the first comparison circuit receives concentration signal of the gas detecting instrument output higher than the second reference signal, output second is sentenced
Break signal while the second execution circuit output second control signal control buzzer F starts, controls electromagnetism to the second execution circuit
Valve is opened and exhaust fan starts, and inert gas air accumulator drains into inert gas dilute to flammable explosive gas progress in cabin
It releases, flammable explosive gas is discharged out of my cabin by exhaust fan, so as to accelerate to reduce gas concentration, so as to fulfill to inflammable and explosive gas
Pretreatment when body leaks.
Description of the drawings
Fig. 1 is the structure diagram of gas dilution device and exhaust apparatus in cabin explosion gas concentration detection system；
Fig. 2 is the schematic diagram of control circuit in cabin explosion gas concentration detection system.
In figure：1st, cabin；2nd, gas detecting instrument；3.1st, level-one alarm control module；3.11st, the first comparison circuit；3.12、
First execution circuit；3.2nd, secondary alarm control module；3.21st, the second comparison circuit；3.22nd, the second execution circuit；4.1st, one
Grade warning device；4.2nd, secondary alarm device；5th, gas dilution device；5.1st, inert gas air accumulator；5.2nd, exhaust pipe；6th, it arranges
Device of air；6.1st, exhaust fan；6.2nd, exhaust tube；7th, solenoid valve.
Specific embodiment
Marine cabin explosion gas concentration measurement system is described further referring to figs. 1 to Fig. 2.
A kind of marine cabin explosion gas concentration measurement system, as shown in Figure 1, including on the side wall of cabin 1 with it in
The exhaust pipe 5.2 of portion's connection, the opening of exhaust pipe 5.2 is close to the bottom surface of cabin 1；The inert gas gas storage being arranged on outside cabin 1
Tank 5.1 is connected with exhaust pipe 5.2 forms gas dilution device 5；The top of cabin 1 is provided with exhaust fan 6.1 and exhaust tube 6.2
Form exhaust apparatus 6；6.2 one end of exhaust tube connects exhaust fan 6.1, and the other end is passed through inside cabin 1.
As shown in Figures 1 and 2, gas detecting instrument 2 is provided in cabin 1, specifically, the gas detecting instrument 2 is partly leads
Formula, using some metal oxide semiconductor materials, at a certain temperature, conductivity becomes with the variation of environmental gas composition
The principle manufacture of change, can be efficiently used for：Methane, ethane, propane, butane, alcohol, carbon monoxide, ethylene, acetylene etc. are inflammable
The detection of explosion hazard gases；And gas detecting instrument 2 is used to export and increase with gas concentration and increased level signal is believed as concentration
Number.3.1 He of level-one alarm control module equipped with the first reference signal is respectively coupled on two output terminals of gas detecting instrument 2
Secondary alarm control module 3.2 equipped with the second reference signal；Level-one alarm control module 3.1 is coupled with level-one warning device
4.1, secondary alarm control module 3.2 is coupled with secondary alarm device 4.2.Wherein, gas dilution device 5 and exhaust apparatus 6 by
It controls in secondary alarm control module 3.2.After the concentration signal value that gas detecting instrument 2 receives is higher than the first baseline signal value,
Level-one alarm control module 3.1 controls level-one warning device 4.1 to start and sends out the first warning information；When the concentration signal received
Higher than after the second baseline signal value, secondary alarm control module 3.2 controls secondary alarm device 4.2 to start and sends out alarm signal value
Breath；Gas dilution device 5 and exhaust apparatus 6 respond secondary alarm control module 3.2 and start simultaneously.
Specifically, level-one alarm control module 3.1 includes the first comparison circuit 3.11 and coupling that are coupled to gas detecting instrument 2
It is connected to the first execution circuit 3.12 of the first comparison circuit 3.11.Secondary alarm control module 3.2 includes being coupled to gas detection
Second comparison circuit 3.21 of instrument 2 and the second execution circuit 3.22 for being coupled to the second comparison circuit 3.21.First comparison circuit
3.11 judge signal to the first execution circuit 3.12,3.12 basis of the first execution circuit by comparing concentration signal and output first
First judges that signal output first performs signal, so as to which level-one warning device 4.1 be controlled to send out alarm；Second comparison circuit 3.21
Signal is judged to the second execution circuit 3.22 by comparing concentration signal and output first, and the second execution circuit 3.22 is according to second
Judge that signal output second performs signal, so as to which secondary alarm device 4.2 be controlled to send out alarm, while control gas dilution device
5 and exhaust apparatus 6 start.
Specifically, as shown in Fig. 2, the first comparison circuit 3.11 include first comparator OA1, the first slide rheostat R1,
The in-phase end of first comparator OA1 is coupled to the output terminal of gas detecting instrument 2, and inverting input is coupled to the first slide rheostat
The sliding end of R1.Preferably, the preferred model LM393A of first comparator OA1, for when in-phase end signal is higher than reverse side
Export high level, the first slide rheostat R1 for set concentration signal that the first reference signal and gas detecting instrument 2 export into
Row compares.First execution circuit 3.12 includes the first triode Q1, the first off delay relay KT1 and the first fly-wheel diode
D1；The base stage of first triode Q1 is coupled to the output terminal of first comparator OA1, collector connection power supply VCC, emitter coupling
One end of first off delay relay KT1, the other end ground connection of the first off delay relay KT1, the first fly-wheel diode
The tie point of cathode coupling the first off delay relay KT1 and the first triode Q1 of D1, plus earth.Wherein, the one three
The preferred positive-negative-positives of pole pipe Q1 are connected after base stage receives high level, and the first sustained diode 1 provides afterflow effect for circuit, from
And the element in circuit is protected not to be damaged.
As shown in Fig. 2, the second comparison circuit 3.21 includes the second comparator OA2, the second slide rheostat R2, second compares
The in-phase end coupling gas detecting instrument 2 of device OA2, inverting input couple the sliding end of the second slide rheostat R2.Preferably,
The preferred model LM393A of second comparator OA2, for exporting high level when in-phase end signal is higher than reverse side, second slides change
Resistance device R2 is compared for setting the concentration signal that the second reference signal is exported with gas detecting instrument 2.Second execution circuit
3.22 include the second triode Q2, the second off delay relay KT2 and the second sustained diode 2；The base of second triode Q2
Pole couples the output terminal of the second comparator OA2, collector connection power supply VCC, and emitter couples the second off delay relay KT2
One end, the other end ground connection of the second off delay relay KT2, the cathode coupling second of the two the second sustained diodes 2 is disconnected
Open the tie point of time-delay relay KT2 and the second triode Q2, plus earth.Wherein, the second preferred positive-negative-positives of triode Q2,
Base stage is connected after receiving high level, and the second sustained diode 2 provides afterflow effect for circuit, so as to protect the element in circuit
It is not damaged.
As shown in Fig. 2, in level-one warning device 4.1, off delay relay KT1 is coupled with what is connected with flashing lamp L
Switch KT1-1；In secondary alarm device 4.2, off delay relay KT2 is coupled with the second switch connected with buzzer H
KT2-1；With reference to Fig. 1, solenoid valve 7 is provided on inert gas air accumulator 5.1, current supply circuit is in series with third switch KT2-
2, it is in series with the 4th switch KT2-3 in the current supply circuit of exhaust fan, the third switches of switch KT2-2 and the 4th KT2-3 is with the
Two switch KT2-1 linkages.After the first off delay relay KT1 obtains electric, first switch KT1-1 is closed flashing lamp L energization works
Make；After the second off delay relay KT2 obtains electric, second switch KT2-1, the third switches of switch KT2-2 and the 4th KT2-3 are equal
It is closed, buzzer H work once electrifieds, solenoid valve 7 obtains electric-opening, and exhaust fan starts, and continues to keep moving after concentration signal is normal
Stop after making a period of time.
Operation principle：It is higher than the dense of the first reference signal when the first comparison circuit 3.11 receives the output of gas detecting instrument 2
When spending signal, output first judges signal to the first execution circuit 3.12, the first execution circuit 3.12 output first control signal
Flashing lamp L is controlled to start；When the first comparison circuit 3.21 receives concentration of the output of gas detecting instrument 2 higher than the second reference signal
During signal, output second judges signal to the second execution circuit 3.22, the output second control signal control of the second execution circuit 3.22
While buzzer F starts, control solenoid valve 7 is opened and exhaust fan 6.1 starts, and inert gas air accumulator 5.1 is by indifferent gas
Body drains into cabin and flammable explosive gas is diluted, and flammable explosive gas is discharged out of my cabin by exhaust fan 6.1, so as to add
Speed reduces gas concentration.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, several improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (9)
1. a kind of marine cabin explosion gas concentration measurement system, it is characterised in that：Including
It is set to cabin（1）It is interior, for detection gas concentration and export the gas detecting instrument of concentration signal（2）；
In response to concentration signal, and by concentration signal value with exporting the first control more afterwards from the size of the first baseline signal value set
The level-one alarm control module of signal processed（3.1）；
In response to concentration signal, and the second baseline signal value higher than the first baseline signal value that concentration signal value is set with oneself
Size exports the secondary alarm control module of second control signal more afterwards（3.2）；
The level-one warning device of the first warning message is sent out in response to first control signal（4.1）；
The secondary alarm device of the second warning message is sent out in response to second control signal（4.2）；
In response to the gas dilution device of second control signal（5）；
After the concentration signal received is higher than the first reference signal, the output first control signal control of level-one alarm control module
Level-one alarm activation；
After the concentration signal received is higher than the second reference signal, the output second control signal control of secondary alarm control module
Secondary alarm device starts；Gas dilution device starts after receiving second control signal simultaneously.
2. marine cabin explosion gas concentration measurement system according to claim 1, it is characterised in that：The level-one alarm
Control module（3.1）Including
Relatively and go out the first judgement signal in response to concentration signal, and by the size of concentration signal value and the first baseline signal value
First comparison circuit（3.11）；
It is coupled to first comparison circuit（3.11）And it responds first and judges that the first of signal output first control signal performs
Circuit（3.12）.
3. marine cabin explosion gas concentration measurement system according to claim 1, it is characterised in that：The secondary alarm
Control module（3.2）Including
In response to concentration signal, and the size of concentration signal value and the second reference signal is exported second more afterwards and judges signal
Second comparison circuit（3.21）；
It is coupled to second comparison circuit（3.21）And it responds second and judges that the second of signal output second control signal performs
Circuit（3.22）.
4. marine cabin explosion gas concentration measurement system according to claim 3, it is characterised in that：The gas dilution
Device（5）Including inert gas air accumulator（5.1）And exhaust pipe（5.2）；The exhaust pipe（5.2）Connect the inert gas storage
Gas tank（5.1）And with the cabin（1）Inside connection；In the exhaust pipe（5.2）On be provided be controlled by it is described second perform
Circuit（3.22）, solenoid valve for being vented and holding one's breath（7）.
5. marine cabin explosion gas concentration measurement system according to claim 1, it is characterised in that：Further include in response to
Second control signal, for by flammable explosive gas from the cabin（1）The exhaust apparatus of discharge（6）.
6. marine cabin explosion gas concentration measurement system according to claim 5, it is characterised in that：The exhaust apparatus
（6）Including exhaust fan（6.1）And exhaust tube（6.2）；The exhaust tube（6.2）One end and the cabin（1）Inside connection, it is another
End connects the exhaust fan（6.1）.
7. marine cabin explosion gas concentration measurement system according to claim 6, it is characterised in that：The exhaust fan
（6.1）With the exhaust tube（6.2）It is arranged on the cabin（1）Top；The exhaust pipe（5.2）Outlet close to the machine
Cabin（1）Bottom surface.
8. marine cabin explosion gas concentration measurement system according to claim 2, it is characterised in that：In the level-one report
Alarm device（4.1）Current supply circuit in be in series with the flashing lamp L for sending out visual alarm and be controlled by described first and hold
Row circuit（3.12）First switch KT1-1.
9. marine cabin explosion gas concentration measurement system according to claim 3, it is characterised in that：In the two level report
Alarm device（4.2）Current supply circuit in be in series with the buzzer H for making a sound alarm signal and be controlled by described second
Execution circuit（3.22）Second switch KT2-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619340.8U CN207541012U (en) | 2017-11-28 | 2017-11-28 | Marine cabin explosion gas concentration measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619340.8U CN207541012U (en) | 2017-11-28 | 2017-11-28 | Marine cabin explosion gas concentration measurement system |
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| Publication Number | Publication Date |
|---|---|
| CN207541012U true CN207541012U (en) | 2018-06-26 |
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ID=62615835
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721619340.8U Active CN207541012U (en) | 2017-11-28 | 2017-11-28 | Marine cabin explosion gas concentration measurement system |
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| Country | Link |
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| CN (1) | CN207541012U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626485A (en) * | 2019-10-22 | 2019-12-31 | 江龙船艇科技股份有限公司 | Inerting system and method for methanol cabin cabinet of ship |
| CN110738826A (en) * | 2019-10-09 | 2020-01-31 | 武汉德创天成科技发展有限公司 | indoor gas excess alarm system based on artificial intelligence |
| CN111917177A (en) * | 2020-06-15 | 2020-11-10 | 阜阳腾冠电力科技有限公司 | Power distribution cabinet based on Internet of things |
-
2017
- 2017-11-28 CN CN201721619340.8U patent/CN207541012U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110738826A (en) * | 2019-10-09 | 2020-01-31 | 武汉德创天成科技发展有限公司 | indoor gas excess alarm system based on artificial intelligence |
| CN110626485A (en) * | 2019-10-22 | 2019-12-31 | 江龙船艇科技股份有限公司 | Inerting system and method for methanol cabin cabinet of ship |
| CN110626485B (en) * | 2019-10-22 | 2024-01-09 | 江龙船艇科技股份有限公司 | Inerting method of ship methanol tank inerting system |
| CN111917177A (en) * | 2020-06-15 | 2020-11-10 | 阜阳腾冠电力科技有限公司 | Power distribution cabinet based on Internet of things |
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