CN108122387A - A kind of flammable explosive warning device to harmful gas automatic calibrator - Google Patents
A kind of flammable explosive warning device to harmful gas automatic calibrator Download PDFInfo
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- CN108122387A CN108122387A CN201611072886.6A CN201611072886A CN108122387A CN 108122387 A CN108122387 A CN 108122387A CN 201611072886 A CN201611072886 A CN 201611072886A CN 108122387 A CN108122387 A CN 108122387A
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- calibrating
- gas
- warning device
- automatic
- flammable explosive
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
Abstract
A kind of flammable explosive warning device to harmful gas automatic calibrator, including calibrating gas flow control system and sensor electric parameter detecting system, realize automatically controlling for calibrating gas flow, the automatic detection of the electric parameters such as fixed detection alarm output signal code, voltage, frequency, calibrating original record, the automatic printing of calibration certificate.The device calibrating gas flow control uses pneumatic threshold switch, the opening and closing of each group standard gas can be achieved automatically and manually to switch, and 5 ~ 10 alarms can be examined and determine under same standard gas concentration simultaneously, it is easy to operate, alleviate labor intensity, improve work efficiency；The output signal voltage of alarm, electric current and frequency realize automatic measurement, avoid human error, improve the reliability of testing result.
Description
Technical field
The present invention relates to a kind of flammable explosive warning device to harmful gas automatic calibrator, suitable for machinery field.
Background technology
Methane, carbon monoxide, hydrogen sulfide etc. are flammable, and explosive pernicious gas is that the exploration of coal, petroleum gas is caused to open
Adopt and the production fields such as chemical industry in serious accident one of source.With safety in production, the increasing of people-oriented consciousness
By force, largely use and install the detection of such gas in the production fields such as the exploration exploitation of coal, petroleum gas and chemical industry
Alarm to take the precautionary measures in time, avoids that accident occurs.
For existing flammable explosion hazard gases detection alarm there are two types of type, one kind is portable inspectiont alarm, another
It is sensor type detection alarm.The output signal of portable inspectiont alarm is direct sound-light alarm, and sensor type detection is reported
The concentration value of tested gas is converted into corresponding electric parameter (electric current, voltage, frequency etc.) and directly inputs control system by alert device, together
When the tested gas concentration value that is also on a display screen characterized electric parameter come out with numerical monitor.JJG 695-2003《Vulcanization
Hydrogen detector vertification regulation》And JJG 693-2004《Flammable gas-detecting alarm device vertification regulation》It is the portable inspection of guidance
Survey the technical regulation of alarm calibrating.Technical indicator, calibration method and calibrating installation in regulation are only intended to portable inspectiont
Alarm, calibrating installation and method are all very simple, are made of standard gas bottle-pressure reducer-flowmeter.And JJG 678-2007《Catalysis
Combustion-type methane analyzer》Vertification regulation defines technical indicator and the calibrating of the electrical parameter including sensor type detection alarm
Method.And relevant department is also making and is revising similar " Carbon Monoxide Detection alarm ", " formula hydrogen sulfide gas is fixedly mounted
Detect alarm " vertification regulation.Therefore, for output signal report is detected for the sensor type of the electric parameters such as electric current, voltage, frequency
For alert device, there are no a kind of special calibrating installation, the calibrating installation being made of one pressure reducer of standard gas bottle-flowmeter can not expire
Foot calibrating needs.For the above situation, it is ten to develop a kind of calibrating installation for including sensor type detection alarm for calibrating
Divide necessary.
The content of the invention
The present invention proposes a kind of flammable explosive warning device to harmful gas automatic calibrator, including calibrating gas flow control
System processed and sensor electric parameter detecting system, realize automatically controlling for calibrating gas flow, and fixed detection alarm is defeated
Go out the automatic detection of the electric parameters such as signal code, voltage, frequency, calibrating original record, the automatic printing of calibration certificate.
The technical solution adopted in the present invention is：
The calibrating installation is made of calibrating gas flow-rate control section and sensor electric parameter measurement part, when different proportion is dense
After the jettron that the calibrating gas of degree is controlled through computer is opened, by adjusting flow control valve, the big of output flow is adjusted
It is small, so as to obtain a sufficiently stable calibrating gas output flow value, it is directly inputted into tested alarm.
The automatic calibrator uses pneumatic threshold switch, and the opening and closing of each group standard gas can be achieved automatically and manually to cut
It changes, it is convenient and efficient.
The calibrating installation automatic Verification management system realized by a set of special-purpose software, the calibrating special-purpose software mainly by
Measurement standard management, calibrating information management, verification parameters setting, calibrating information setting, calibrating, calibration, calibration certificate management,
The part such as System data management is formed, and is respectively partly expanded into submenu and is managed accordingly again.
The beneficial effects of the invention are as follows：The device calibrating gas flow control uses pneumatic threshold switch, and each group standard gas is opened
It opens and closes and can be achieved automatically and manually to switch, and 5 ~ 10 alarms can be examined and determine under same standard gas concentration simultaneously, operate
Simplicity alleviates labor intensity, improves work efficiency；The output signal voltage of alarm, electric current and frequency realize automatically
Measurement, avoids human error, improves the reliability of testing result.
Description of the drawings
Fig. 1 is the detection matching device gas circuit operation principle schematic diagram of the present invention.
Fig. 2 is the detection matching device jettron control principle schematic diagram of the present invention.
Fig. 3 is the electric parameter tester operation principle schematic diagram of the present invention.
Fig. 4 is voltage, electric current and the frequency measurement switching principle figure of the present invention.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
Such as Fig. 1, calibrating installation is made of calibrating gas flow-rate control section and sensor electric parameter measurement part.Work as difference
After the jettron that the calibrating gas of proportional concentration is controlled through computer is opened, by adjusting flow control valve, output stream is adjusted
The size of amount so as to obtain a sufficiently stable calibrating gas output flow value, is directly inputted into tested alarm.
Such as Fig. 2, come from the control signal of computer, after light misfortune isolation, start through midget relay or close pneumatic
Valve.5 groups of standard gas are opened simultaneously during to prevent computer booting, and pneumatic operated valve is connected to the normally open end of relay.Control signal end
Pull down resistor will ensure that relay is made to be in normally off in computer booting.To prevent from disturbing, voltage and relay are controlled
Device driving voltage should be two power supplys independently.
Such as Fig. 3, the electrical parameter output signal (voltage, electric current or frequency) of alarm is detected by Multi-parameter data collector
Afterwards, then after data processing shown on big screen LCD, while also through being given to host on RS-232 interface, by
Host record finally prints original record, calibration certificate after preserving.
Such as Fig. 4, the voltage of Multi-parameter data collector, electric current and frequency measurement switching principle, the input signal of alarm
It is connected to variable connector.When the output signal of alarm is electric current, A/D converter is first entered back into after current/voltage-converted.
If the output signal of alarm is frequency, after variable connector switches, then carries out waveform amplification and arrange.
Operating pressure is visual, and output flow size is adjustable and stablizes.Using pneumatic threshold switch, the unlatching of each group standard gas and pass
It closes and can be achieved automatically and manually to switch, it is convenient and efficient.Component (switch, connecting pipeline, flowmeter, the pressure contacted with working media
Power table) connected using metal, corrosion-resistant, anti-oxidant, service life is long.It is adjustable that device is designed as 5 groups of flows, has the system clear
(air scavenging) function is washed, meanwhile, it is also convenient for the periodic calibration of device itself.5 transparent form formulas are devised on calibrating installation
Examine and determine space, 5 groups of standard gas can open simultaneously, in calibrating without frequently be turned on and off various concentration than standard gas bottle, it is same dense
5 ~ 10 or more sensors (can separately preheat 5 ~ 10) can be examined and determine under scale gas simultaneously.Built-in electric spreads exhaust fan,
Calibrating space remnants pernicious gases can quickly be excluded.
Built-in adjustable (0 ~ 35) DCV DC power supplies facilitate sensor type flammable explosive pernicious gas (hydrogen sulfide, one
Carbonoxide etc.) detection alarm calibrating.Sensor electric parameter measurement is real by one " flammable explosion hazard gases sensor tester "
The automatic measurement of existing voltage, electric current and frequency.Tester uses the related ginseng of large screen (dot matrix number is 240x128) liquid crystal device display
Number, can work independently.And test data can be uploaded to PC machine by RS-232 interface, it can realize initial data and calibration certificate
The functions such as automatic printing.
The automatic Verification management system of calibrating installation is realized by a set of special-purpose software.The software systems operation ring of calibrating installation
Border is Windows 2001) or Windows XP, the memory with more than 512MB.It should
Examine and determine special-purpose software mainly by measurement standard management, calibrating information management, verification parameters setting, calibrating information setting,
The part such as calibrating, calibration, calibration certificate management, System data management is formed, and is respectively partly expanded into submenu and is carried out again accordingly
Management.
" standard information management " icon on the left of screen is such as clicked on, into setting and modification and calibration certificate and the original note of calibrating
It uses videotape to record associated information management state.It can be achieved under the state to calibrating standard gas information, by the range of test examination instrument and calibrating
The typing of the relevant information of unit.
Claims (3)
1. a kind of flammable explosive warning device to harmful gas automatic calibrator, it is characterized in that：The calibrating installation is by calibrating gas
Flow-rate control section and sensor electric parameter measurement part composition, control when the calibrating gas of different proportion concentration through computer
After jettron is opened, by adjusting flow control valve, the size of output flow is adjusted, so as to obtain a sufficiently stable mark
Quasi- gas outflow magnitude, is directly inputted into tested alarm.
2. the flammable explosive warning device to harmful gas automatic calibrator of one kind according to claim 1, it is characterized in that：It is described
Automatic calibrator uses pneumatic threshold switch, and the opening and closing of each group standard gas can be achieved automatically and manually to switch, convenient and efficient.
3. the flammable explosive warning device to harmful gas automatic calibrator of one kind according to claim 1, it is characterized in that：It is described
The automatic Verification management system of calibrating installation is realized that the calibrating special-purpose software is mainly by measurement standard pipe by a set of special-purpose software
Reason, calibrating information management, verification parameters setting, calibrating information setting, calibrating, calibration, calibration certificate management, System data management
It is formed Deng part, respectively partly expands into submenu and managed accordingly again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072886.6A CN108122387A (en) | 2016-11-29 | 2016-11-29 | A kind of flammable explosive warning device to harmful gas automatic calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072886.6A CN108122387A (en) | 2016-11-29 | 2016-11-29 | A kind of flammable explosive warning device to harmful gas automatic calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108122387A true CN108122387A (en) | 2018-06-05 |
Family
ID=62225630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611072886.6A Pending CN108122387A (en) | 2016-11-29 | 2016-11-29 | A kind of flammable explosive warning device to harmful gas automatic calibrator |
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|---|---|
| CN (1) | CN108122387A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738591A (en) * | 2019-02-20 | 2019-05-10 | 苏州曼德克光电有限公司 | A kind of gas alarm device caliberating device |
| CN109917076A (en) * | 2019-03-08 | 2019-06-21 | 广东省韶关市质量计量监督检测所 | Multichannel Carbon Monoxide Detection alarm automatic verification system |
| CN110308105A (en) * | 2019-04-24 | 2019-10-08 | 中国矿业大学 | Non-dispersive infrared methane sensor verification system based on cloud platform |
-
2016
- 2016-11-29 CN CN201611072886.6A patent/CN108122387A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738591A (en) * | 2019-02-20 | 2019-05-10 | 苏州曼德克光电有限公司 | A kind of gas alarm device caliberating device |
| CN109917076A (en) * | 2019-03-08 | 2019-06-21 | 广东省韶关市质量计量监督检测所 | Multichannel Carbon Monoxide Detection alarm automatic verification system |
| CN110308105A (en) * | 2019-04-24 | 2019-10-08 | 中国矿业大学 | Non-dispersive infrared methane sensor verification system based on cloud platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180605 |
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| WD01 | Invention patent application deemed withdrawn after publication |