CN207051187U - Point-type combustible gas detecting device based on infrared gas sensor - Google Patents
Point-type combustible gas detecting device based on infrared gas sensor Download PDFInfo
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- CN207051187U CN207051187U CN201720756591.4U CN201720756591U CN207051187U CN 207051187 U CN207051187 U CN 207051187U CN 201720756591 U CN201720756591 U CN 201720756591U CN 207051187 U CN207051187 U CN 207051187U
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- 238000000034 method Methods 0.000 claims abstract description 48
- 230000008569 process Effects 0.000 claims abstract description 48
- 238000006243 chemical reaction Methods 0.000 claims description 33
- 238000002955 isolation Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 107
- 239000002737 fuel gas Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 210000003660 reticulum Anatomy 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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Abstract
It the utility model is related to a kind of point-type combustible gas detecting device based on infrared gas sensor, the infrared gas sensor part being connected including main part and with main part, point-type combustible gas detecting device also includes alert process part, the alert process part is also connected with main part, and alert process part is a gear alert process part or more gear alert process parts, infrared gas sensor part includes sensor main control module and the infrared gas sensor main body being connected with sensor main control module, infrared gas sensor part is connected to main part by sensor main control module, using the point-type combustible gas detecting device based on infrared gas sensor, people calibration can be achieved, and more gear alarms can be realized, application is quite varied.
Description
Technical field
Sensor field, more particularly to gas sensor domain, in particular to one kind be the utility model is related to based on infrared
The point-type combustible gas detecting device of gas sensor.
Background technology
At present, the gas sensitive device of various more typical combustible gas probes and the signal processing circuit of detector are all whole
It is combined.Due to the inherent characteristic of its gas sensitive device, cause the uniformity of signal output poor, and all can in certain time
The drift of measured value occurs, so needing periodically to demarcate detector.Visited using the fuel gas of infrared-gas sensing device
Surveying the demarcation of device and debugging all needs to be passed through object gas to detector at the scene, therefore operation is cumbersome and difficult, at the scene
Two people's cooperatings are at least needed, the demarcation and debugging of combustible gas probe could be completed, cause such fuel gas to be visited
It is complex to survey the application of device, maintenance needs to expend substantial amounts of human cost.For the concentration of fuel gas and toxic gas point
Grade carries out different processing, also becomes a kind of development trend of combustible gas detecting device.
Utility model content
The purpose of this utility model is the shortcomings that overcoming above-mentioned prior art, there is provided one kind can realize a people demarcation,
Realize the point-type combustible gas detecting device based on infrared gas sensor of more gear warning remindings.
To achieve these goals, the point-type combustible gas detecting device of the present utility model based on infrared gas sensor
Formed with following：
The point-type combustible gas detecting device based on infrared gas sensor, including main part and with described main body
The infrared gas sensor part that part is connected, it is mainly characterized by, and described point-type combustible gas detecting device also includes
Alert process part, the alert process part are also connected with described main part, and described alert process part is one
Keep off alert process part or more gear alert process part, described infrared gas sensor part include sensor main control module with
And the infrared gas sensor main body being connected with described sensor main control module, described infrared gas sensor part lead to
Cross described sensor main control module and be connected to described main part.
It is preferred that described main part also includes power module, one-chip computer module and modular converter, described modulus of conversion
The described one-chip computer module of block one end connection, the described alert process module of other end connection, and described power module includes
Microcontroller power supply unit and infrared gas sensor power subsystem, wherein, described microcontroller power supply unit is connected to described
One-chip computer module, described infrared gas sensor power subsystem is connected to described infrared gas sensor part, described
Alert process part includes alarm lamp and alarm relay, and the number of described alarm relay and described alert process portion
The gear number divided is related.
More preferably, described modular converter includes D/A conversion chips and three lines being connected with described D/A conversion chips
Conversion chip processed, described modular converter are connected to described alert process part, institute by described three-wire system conversion chip
The modular converter stated is connected to described one-chip computer module by described D/A conversion chips.
More preferably, described main part also includes a LED display, and described one-chip computer module is driven by a LED
Circuit is connected to the LED display.
It is preferred that described infrared gas sensor part is pluggable to be connected to described main part, and it is described
Infrared gas sensor part and the connecting portion of described main part are provided with isolation optocoupler.
It is preferred that the sensor main control module of described infrared gas sensor part includes micro-control unit and deposited
Storage unit and compensating unit, described micro-control unit is connected with described memory cell and compensating unit respectively, described
Compensating unit includes drift compensating unit, ambient temperature compensation unit, and described memory cell is erasable memory cell.
It is preferred that described main part, infrared gas sensor part and alert process part may be contained within a housing
Inside, and described enclosure interior is provided with explosion-proof sintered meshwork, described housing is explosion-proof casing.
Using the point-type combustible gas detecting device based on infrared gas sensor, because it uses flame proof to add intrinsic safety
Blast resistance construction, the hot plug of the infrared gas sensor part is supported, and infrared gas sensor part includes microcontroller list
Member and memory cell and compensating unit, people demarcation can be achieved, demarcated without relying on more people, very simple is convenient, and
Because modular converter makes tested gas concentration and the size of current of output proportional, therefore can be big with regard to electric current that modular converter exports
Small setting keeps off alarm mechanism more, and the alert process under different classifying alarms, application ten are realized by multiple alarm relays
Divide extensive.
Brief description of the drawings
Fig. 1 is the explosive view of the point-type combustible gas detecting device of the present utility model based on infrared gas sensor.
Fig. 2 is that the power module of the point-type combustible gas detecting device of the present utility model based on infrared gas sensor exists
A kind of schematic diagram in embodiment.
Fig. 3 is that the infrared-gas of the point-type combustible gas detecting device of the present utility model based on infrared gas sensor passes
Structural representation when isolating is being realized by isolation optocoupler with one-chip computer module in sensor part.
Fig. 4 is in the modular converter of the point-type combustible gas detecting device of the present utility model based on infrared gas sensor
The connection relationship diagram of D/A conversion chips and three-wire system conversion chip.
Reference
1 plug
2 O-rings
3 pads
4 rubber rings
5 nameplates
6 rivets
7 housings
8 forms
9 pressing plates
10 countersunk head screws
11 PCB components
12 cross screw assemblies
13 bonnets
14 infrared gas sensor main bodys
15 powder metallurgy nets
16 stainless steel cylinders
Embodiment
In order to more clearly describe technology contents of the present utility model, enter traveling one with reference to specific embodiment
The description of step.
The point-type combustible gas detecting device based on infrared gas sensor, including main part and with described main body
The infrared gas sensor part that part is connected, and described point-type combustible gas detecting device also includes alert process portion
Point, the alert process part is also connected with described main part, and described alert process part is a gear alert process
Part or more gear alert process part, described infrared gas sensor part include sensor main control module and with it is described
The infrared gas sensor main body that sensor main control module is connected, described infrared gas sensor part pass through described biography
Sensor main control module is connected to described main part.Infrared gas sensor described in described sensor master control module controls
Whether is the work of main body, and controls the data processing of described infrared gas sensor main body, storage etc., passes through and sets sensing
Parameters in device main control module realize the control to infrared gas sensor main body.
In a kind of specific embodiment, described main part also includes power module, one-chip computer module and modular converter,
The described one-chip computer module of described modular converter one end connection, the described alert process module of other end connection, and it is described
Power module includes microcontroller power supply unit and infrared gas sensor power subsystem, wherein, described microcontroller power supply unit
Described one-chip computer module is connected to, described infrared gas sensor power subsystem is connected to described infrared gas sensor
Part, described alert process part include alarm lamp and alarm relay, and the number of described alarm relay with it is described
Alert process part gear number it is related, in a kind of specific embodiment, the number of described alarm relay with it is described
The gear number of alert process part is equal.
Referring to Fig. 4, in a kind of specific embodiment, described modular converter is connected with described alert process part
Connect, and described modular converter includes three-wire system conversion chip and D/A conversion chips, and the output of described D/A conversion chips
Pin is connected to the input pin of described three-wire system conversion chip, and described modular converter changes core by described D/A
Piece is connected to described one-chip computer module.
In this kind of specific embodiment, described modular converter output 4~20mA current signals as alarm at
The input signal of part is managed, because described 4~20mA current signals are proportional to gas concentration, therefore classifying alarm can be used as
Foundation, for the different size of current signal of gas with various concentration output, drive different alarm relay to realize different
The alert process of grade.
In a kind of specific embodiment, infrared gas sensor power subsystem is+5V power supplys, microcontroller power supply unit for+
3.3V power supplys, described+5V power supplys supply described infrared gas sensor part normal work, and described+3.3V power supplys supply institute
The one-chip computer module normal work stated.Referring to Fig. 3, in a kind of specific embodiment, described power module is passed through by 24V power supplys
Acquisition+5V power supplys and+3.3V power supplys after filtering process and the conversion process of DC/DC change-over circuits.
Referring to Fig. 2, in a kind of specific embodiment, 24V power supplys realize DC/DC translation functions through DC/DC conversion chips.
Described main part also includes a LED display, and described one-chip computer module is connected by a LED drive circuit
To the LED display.In a kind of specific embodiment, LED display is driven using LED charactrons driving chip, this kind
LED charactrons driving chip uses Zhou Ligong string side's type of drive, reduces single-chip microcomputer mouth resource occupation, LED charactrons part
For common cathode charactron.
Described infrared gas sensor part is pluggable to be connected to described main part, and described infrared-gas
Sensor section and the connecting portion of described main part are provided with isolation optocoupler.
The sensor main control module of described infrared gas sensor part includes micro-control unit and memory cell
And compensating unit, described micro-control unit are connected with described memory cell and compensating unit respectively, described compensation list
Member includes drift compensating unit, ambient temperature compensation unit, and described memory cell is erasable memory cell.In one kind
In specific embodiment, described memory cell is a read-only storage of the electric erazable programmable being connected with described micro-control unit
Device, type, range and the warning level of the probe gas pre-set are stored with the EEPROM
Value etc., and because it is EEPROM, therefore can voluntarily be changed by user in theory.It is described
Micro-control unit and described compensating unit be all based on microcontroller, described compensating unit is pre- in microcontroller
The backoff algorithm first set, such as linear temperature compensation algorithm, to realize that a people demarcates.
In a kind of preferably embodiment, described main part, infrared gas sensor part and alert process portion
It point may be contained within an enclosure interior, and described enclosure interior is provided with explosion-proof sintered meshwork, described housing is explosion-proof casing, institute
The hot plug of described infrared gas sensor part is supported with described device, danger will not occur due to hot plug.
Referring to Fig. 3, in a kind of embodiment, described infrared gas sensor part can by isolation optocoupler
Plug is connected to described main part.The isolation light of the requirement for the dielectric strength 1.5KV for meeting essential safety should be selected
Coupling.
In a kind of specific embodiment, described one-chip computer module includes one 32 single-chip microcomputers, is encapsulated for 32 pin pasters,
Operating voltage is 3.3V.In a kind of specific embodiment, the single-chip microcomputer is used to be communicated, used with infrared gas sensor part
In the driving of LED display, in a kind of preferably embodiment, bar magnet communication control interface is additionally provided with the single-chip microcomputer,
To realize bar magnet control, so as to realize the change of storage content in the storage part to infrared gas sensor part, and have
There are D/A conversion chip interfaces, connect the D/C conversion chips in described modular converter, realize gas concentration to current strength
Conversion, and in this kind of specific embodiment, the online programming of the single-chip microcomputer and emulation use ISP interface modes.
In a kind of specific embodiment, when the point-type combustible gas detecting device installation based on infrared gas sensor
When completing and switching on power, main part can be read automatically to be stored in the memory cell of described infrared gas sensor part
Gas type and range, according to the tested gas concentration output current signal detected, gas concentration and current signal it is big
Small conversion realized by modular converter, described modular converter include D/A conversion chips and with described D/A conversion chips
The three-wire system conversion chip being connected, described modular converter are connected to described alarm by described three-wire system conversion chip
Process part, and described one-chip computer module is connected to by described D/A conversion chips, described D/A conversion chips will be single
The tested gas concentration that the infrared gas sensor part that piece machine module receives detects is converted into analog signal, by described
Three-wire system conversion chip is converted to tested gas concentration the 4~20mA proportional to being tested gas concentration according to the analog signal
Current signal, so as to drive the alert process part of more gears, according to size of current realize alarm classification processing.
In a kind of specific embodiment, when setting two gear alert process parts, alert process part includes two reports
Alert relay and some alarm lamps, described LED display are controlled by described one-chip computer module, show current infrared-gas
The gas concentration value that the infrared gas sensor main body of transducing part is surveyed, when the gas concentration value surveyed exceedes the first of setting
During threshold value, the electric current of three-wire system conversion chip output the first described alarm relay work, is carried out in the first alarm range
Corresponding alert process；When surveyed gas concentration value exceedes Second Threshold, three-wire system conversion chip output current is in the second report
In alert scope, the second alarm relay work, the first alarm relay does not work, and carries out corresponding alert process.
In a kind of embodiment, in addition to early warning is outranged, when described infrared gas sensor subject detection
When exceeding the gas concentration range set in infrared gas sensor part to surveyed gas concentration, described alert process portion
Divide and carry out outranging early warning.And because the memory cell in described infrared gas sensor part is erasable memory cell,
Therefore the device is supported to the gas type and alarm threshold value of detection and the change of range.
Referring to Fig. 1, in a kind of specific embodiment, the point-type fuel gas based on infrared gas sensor is visited
Device is surveyed by being formed with lower component：
Plug 1, O-ring 2, pad 3, rubber ring 4, nameplate 5, rivet 6, housing 7, form 8, pressing plate 9, countersunk head screw 10,
PCB components 11, cross screw assemblies 12, bonnet 13, infrared gas sensor main body 14, powder metallurgy net 15 and stainless steel cylinder
Body 16.
Above-mentioned parts combination forms the entirely point-type combustible gas detecting device based on infrared gas sensor, and nameplate
On except data plate have the parameters of the point-type combustible gas detecting device based on infrared gas sensor in addition to, can also imprint this
The affiliated manufacturer of point-type combustible gas detecting device and concrete model based on infrared gas sensor etc..
Described one-chip computer module is arranged on described PCB components 11, and described power module, modular converter are also provided with
In on the PCB components 11.Described housing 6 by whole infrared gas sensor module, main part and alarm main body module
It is included in inside it, explosion-proof sintered meshwork is also set up in housing 6, realizes that explosion-proof flame proof adds intrinsic safety.
Using the point-type combustible gas detecting device based on infrared gas sensor, because it uses flame proof to add intrinsic safety
Blast resistance construction, the hot plug of the infrared gas sensor part is supported, and infrared gas sensor part includes microcontroller list
Member and memory cell and compensating unit, people demarcation can be achieved, demarcated without relying on more people, very simple is convenient, and
Because modular converter makes tested gas concentration and the size of current of output proportional, therefore can be big with regard to electric current that modular converter exports
Small setting keeps off alarm mechanism more, and the alert process under different classifying alarms, application ten are realized by multiple alarm relays
Divide extensive.
In this description, the utility model is described with reference to its specific embodiment.But it is clear that still can be with
Various modification can be adapted and conversion is without departing from spirit and scope of the present utility model.Therefore, specification and drawings are considered as
It is illustrative and not restrictive.
Claims (7)
1. a kind of point-type combustible gas detecting device based on infrared gas sensor, including main part and with described main body
The infrared gas sensor part that part is connected, it is characterised in that described point-type combustible gas detecting device is also comprising report
Alert process part, the alert process part are also connected with described main part, and described alert process part is a gear
Alert process part or more gear alert process part, described infrared gas sensor part include sensor main control module and
The infrared gas sensor main body being connected with described sensor main control module, described infrared gas sensor part pass through
Described sensor main control module is connected to described main part.
2. the point-type combustible gas detecting device according to claim 1 based on infrared gas sensor, it is characterised in that
Described main part also includes power module, one-chip computer module and modular converter, described in the connection of described modular converter one end
One-chip computer module, the described alert process part of other end connection, and described power module includes microcontroller power supply unit
With infrared gas sensor power subsystem, wherein, described microcontroller power supply unit is connected to described one-chip computer module, described
Infrared gas sensor power subsystem be connected to described infrared gas sensor part, described alert process part includes
Alarm lamp and alarm relay, and the number of described alarm relay is related to the gear number of described alert process part.
3. the point-type combustible gas detecting device according to claim 2 based on infrared gas sensor, it is characterised in that
Described modular converter includes D/A conversion chips and the three-wire system conversion chip being connected with described D/A conversion chips, described
Modular converter described alert process part is connected to by described three-wire system conversion chip, described modular converter passes through
Described D/A conversion chips are connected to described one-chip computer module.
4. the point-type combustible gas detecting device according to claim 2 based on infrared gas sensor, it is characterised in that
Described main part also includes a LED display, and described one-chip computer module is connected to the LED by a LED drive circuit
Display screen.
5. the point-type combustible gas detecting device according to claim 1 based on infrared gas sensor, it is characterised in that
Described infrared gas sensor part is pluggable to be connected to described main part, and described infrared gas sensor portion
The connecting portion with described main part is divided to be provided with isolation optocoupler.
6. the point-type combustible gas detecting device according to claim 1 based on infrared gas sensor, it is characterised in that
The sensor main control module of described infrared gas sensor part includes micro-control unit and memory cell and compensation is single
Member, described micro-control unit are connected with described memory cell and compensating unit respectively, and described compensating unit includes zero
Point drift compensating unit, ambient temperature compensation unit, described memory cell are erasable memory cell.
7. the point-type combustible gas detecting device according to claim 1 based on infrared gas sensor, it is characterised in that
Described main part, infrared gas sensor part and alert process part may be contained within an enclosure interior, and described shell
Body is internally provided with explosion-proof sintered meshwork, and described housing is explosion-proof casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720756591.4U CN207051187U (en) | 2017-06-27 | 2017-06-27 | Point-type combustible gas detecting device based on infrared gas sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720756591.4U CN207051187U (en) | 2017-06-27 | 2017-06-27 | Point-type combustible gas detecting device based on infrared gas sensor |
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| Publication Number | Publication Date |
|---|---|
| CN207051187U true CN207051187U (en) | 2018-02-27 |
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ID=61493644
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720756591.4U Active CN207051187U (en) | 2017-06-27 | 2017-06-27 | Point-type combustible gas detecting device based on infrared gas sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946259A (en) * | 2019-03-26 | 2019-06-28 | 翼捷安全设备（昆山）有限公司 | A kind of list window binary channels infrared detector and method |
| US12153033B2 (en) | 2021-04-27 | 2024-11-26 | Gulf Security Technology Co., Ltd. | Combustible gas sensor module and combustible gas sensing device |
-
2017
- 2017-06-27 CN CN201720756591.4U patent/CN207051187U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946259A (en) * | 2019-03-26 | 2019-06-28 | 翼捷安全设备（昆山）有限公司 | A kind of list window binary channels infrared detector and method |
| US12153033B2 (en) | 2021-04-27 | 2024-11-26 | Gulf Security Technology Co., Ltd. | Combustible gas sensor module and combustible gas sensing device |
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