CN201680985U - Intelligent detecting and testing device for poisonous and harmful gas alarm - Google Patents

Intelligent detecting and testing device for poisonous and harmful gas alarm Download PDF

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Publication number
CN201680985U
CN201680985U CN2010202043136U CN201020204313U CN201680985U CN 201680985 U CN201680985 U CN 201680985U CN 2010202043136 U CN2010202043136 U CN 2010202043136U CN 201020204313 U CN201020204313 U CN 201020204313U CN 201680985 U CN201680985 U CN 201680985U
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China
Prior art keywords
gas
instrument
computing machine
poisonous
toxic
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Expired - Fee Related
Application number
CN2010202043136U
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Chinese (zh)
Inventor
张基伟
荆兆东
孙景斌
韩志刚
董国乾
王恒波
王樉
金泽宇
高世祥
王红权
穆克
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FUSHUN METROLOGY INSTITUTE
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FUSHUN METROLOGY INSTITUTE
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Priority to CN2010202043136U priority Critical patent/CN201680985U/en
Application granted granted Critical
Publication of CN201680985U publication Critical patent/CN201680985U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an intelligent detecting and testing device for a poisonous and harmful gas alarm. Different raw gas flows into a mixture respectively through a high-pressure valve, a pressure gauge, a pressure relief valve and a mass flow rate controller. The mixture outputs the gas, and the gas enters the inspected instrument through a flow meter. The required gases of different concentration can be prepared through the computer controlling the mass flow rate controller; the sound and image output signals of the inspected instrument are inputted into the computer respectively through an image collecting and identifying device and a sound level meter, the signals are analyzed and computed by the program, and then printed and outputted. By applying the computer technology, the utility model realizes the full automation of poisonous and harmful gas alarm inspection and report generation, can enhance the inspection efficiency, greatly enhance the reliability and accuracy of the inspection, decrease the artificial error, and reduce the chance of the worker coming into contact with the poisonous and harmful gas. The metering and inspecting procedure can be improved by the inspection method.

Description

Toxic and harmful alarm Intelligent Measurement experimental provision
One, technical field
The utility model relates to the detection of warning instrument, particularly the test experience method and the device thereof of toxic and harmful alarm.
Two, background technology
Ventilation during the toxic and harmful alarm detects at present, ventilation, reading etc. all are by manually finishing, both wasted time and energy, being difficult to guarantee testing result again accurately and reliably.If instrument is carried out Detection of Stability, just need a large amount of repeated labors.External minority toxic and harmful alarm Intelligent Measurement experimental provision mainly is that the factory inspection at product is a purpose, and function is comprehensive not enough.Though domestic have the product of intelligent class to use, and also is only limited to the switching of gas circuit on its function, and is confined to manually-operated.Intelligent Dynamic air distributing device that is applied to the gas dilution aspect etc. is arranged again, all be only limited to the robotization of dynamic air-distributing aspect, do not detect the function of control aspect.
Three, summary of the invention
The purpose of this utility model will provide a kind of toxic and harmful alarm experimental method for intelligent detection and device thereof exactly, according to the requirement of measurement verification regulations and other rules, finishes calibrating, calibration or test to gas detecting instrument automatically.
The technical solution adopted in the utility model is: different unstrpped gas enters mixer through high pressure valve, tensimeter, reduction valve and mass flow controller respectively, and mixer output gas enters by test examination instrument by flowmeter.Make the gas of required variable concentrations by computer program control of quality flow controller.Imported computing machine through image acquisition recognition device and sound meter respectively by the sound of test examination instrument and picture output signal, calculate printout through process analysis.
The utlity model has following characteristics:
1) the digit recognition technology being used for the toxic and harmful alarm detects
It all is to adopt naked eyes to read the demonstration numerical value of alarm that existing toxic and harmful alarm detects, and takes a lot of work, time-consuming, effort, also is difficult to guarantee the objectivity of reading.The utility model will according to the requirement of measurement verification regulations, through setting, be finished calibrating or calibration to gas detecting instrument by the video data of test examination instrument input computer automatically by digital image acquisition apparatus.Not only can improve the work efficiency of detection, the more important thing is that it can improve the reliability and the accuracy of calibration operation greatly, reduce personal error.
2) utilize sound meter to detect the alarm set point of toxic and harmful alarm
It all is to adopt to feed the gas of setting 1.5 times of alarm set points that existing toxic and harmful alarm equipment alarm point detects, and hears register instrument displayed value behind the alarm sound, and the displayed value that reads is not accurate enough, can't offer an explanation the intensity of sound especially.The utility model utilizes sound meter directly with the sound and intensity (decibels) the input computer thereof that send, can accurately be corresponding with the instrument displayed value of computer record.
3) the automatic distributing technology being directly used in the toxic and harmful alarm detects
By the accurate pilot-gas mass flowmeter of computing machine used unstrpped gas is diluted, that satisfies various measurement verifications/calibration rules regulation carries out the detection of variable concentrations to instrument, has avoided the frequent steel cylinder of changing in test.For multiple range instrument and when detecting the instrument of different ranges simultaneously, its advantage is more obvious.
4) write out the computer program corresponding according to the measurement verification regulations of toxic and harmful alarm, finish calibrating or calibration automatically gas detecting instrument with it.It not only can improve the work efficiency of detection, the more important thing is that it can greatly improve the reliability and the accuracy of calibration operation, reduces personal error.
5) by the combination of computer program and automatic distributing, can realize at present can't more rational regulation owing to operating the upward difficult measurement verification regulations that make.Adopt the calibrating gas that feeds 1.5 times of alarming values such as test, and the alarming value and the actual value that record are not inconsistent alarm set point.By the combination of computer program and automatic distributing, can adopt the cumulative mode of concentration to come the alarm set point of determining instrument.
6) in experimental provision, is furnished with adjustable D.C. regulated power supply, the external power supply that can provide retainer instrument to use.
7) in experimental provision, be furnished with the charger of portable instrument commonly used, can be to most portable instrument charging.
8) in experimental provision, be furnished with pick-up units such as electric current, voltage, frequency, but the output of detecting instrument signal.
The utility model Applied Computer Techniques, realize the full-automatic detection of reading that the toxic and harmful alarm detects, alarm set point, the error of indication, repeatability, response time, stability etc. and generated examining report on request automatically, not only can improve the work efficiency of detection, the more important thing is that it can improve the reliability and the accuracy of calibration operation greatly, reduce personal error, the chance of the contact toxic and harmful that reduces a staff simultaneously.Detection means is improved measurement verification regulations in view of the above.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a system chart of the present utility model.
Five, embodiment
High pressure valve, high pressure gauge, reduction valve, low-pressure meter and the mass flow controller on each road of process enter the gas mixer mixing after inflow-rate of water turbine meter 1 enters by test examination instrument respectively to unstripped gas n for unstripped gas 1, unstripped gas 2, unstripped gas 3.Mixer output also is connected to an emptying flow meter 2, and flowmeter 2 plays the bypass effect, with unnecessary gas emptying.Imported computing machine by the sound of test examination instrument and demonstration numerical value by sound meter and image acquisition recognition device.By temperature sensor, humidity sensor and pressure transducer the temperature in the environment, humidity and pressure signal are imported computing machine simultaneously, computing machine connects printer output, also can be connected to LAN (Local Area Network).
Unstripped gas 1,2,3 ... n is the different unstrpped gas of n kind, can come to determine the numerical value of n as required, usually unstripped gas 1, unstripped gas 2 can be set at nitrogen and oxygen, unstripped gas 3 to unstripped gas n be toxic and harmful (generally should adopt diluted calibrating gas).Gas is by high pressure valve, high pressure gauge, behind reduction valve, makes the pressure of gas meet the requirement of mass flow controller, arrives mass flow controller through low-pressure meter again.By computing machine the flow of each road mass flow controller is controlled, the output after mixer mixes of mass flow controller effluent air requires the gas of concentration, delivers to by test examination instrument through flowmeter 1.The demonstration numerical value of the tested instrument that will not gather by the score of image set recognition device and sound level and decibel numerical value of alarm sound are sent in the computing machine.
Computing machine is the core of this cover system, according to the measurement verification regulations that detect different instruments, works out out the relevant detection program, by the accurate control to mass flow controller, according to the step that requires of vertification regulation, finishes the complete verification process of instrument.And realize the automatic generation of certificate such as calibrating/calibration/test or report.
The utility model detection system is formed by the function formation can be divided into four modules, prints four parts by parameter setting, flow control, data acquisition and demonstration respectively and forms.
Parameter is provided with module: be mainly used in flowrate proportioning that all gases is set, conversion coefficient, duration of ventilation, ventilation interval time, parameters such as ventilation number of times, data acquisition time and interval.
Flow-control module: the switch control and the flow control that are mainly used in the control plan control of quality flow controller that is provided with according to parameter.
Data acquisition module: be mainly used in collection by the reading information data of test examination instrument, reading with image set recognition device (camera) recording unit, be deposited in the middle of the discernible file of computing machine, and be saved in the data file, calculate simultaneously automatically data such as the error of indication, repeatability and warning error and be saved in the data file and go.Utilize the sound meter collected sound signal.By temperature, humidity and pressure transducer collecting temperature, humidity and pressure signal.
Show print module: be mainly used in the status information that shows flow controller, by data such as the reading information of test examination instrument, the error of indication, repeatability and warning errors, data message can be formed report printing output simultaneously and print related credentials.
(range is 0~2000 * 10 with portable CO alarm below -6μ mol/mol, alarm set point are 24 * 10 -6μ mol/mol) calibrating is that example is said testing process of the present utility model.
Unstripped gas 1,2,3 is respectively high pure nitrogen, the high purity oxygen gas and 1400 * 10 that meets measurement verification regulations -6μ mol/mol CO/Air calibrating gas.
At first, instrument is carried out the outward appearance calibrating, behind the assay approval, instrument is carried out the adjustment of pre-thermally-stabilised and zero point and indicating value according to the operation instructions of instrument according to the requirement of vertification regulation " JJG915-2008 Carbon Monoxide Detection alarm ".
Instrument is placed on the test board, connects the gas injection cover, fix with the dedicated fixed utensil.Adjust camera, make computing machine can identify the demonstration numerical value of instrument.
Operational computations machine, this computer-chronograph can be held to make CO alarm (hereinafter to be referred as instrument) is carried out the fully automatic culculating calibrating according to the program of establishment in advance.
One, passes through the flow of control of quality flowmeter 1 and 2, feed " air " (also can only feed high pure nitrogen) of preparation to instrument, behind digital recognition system judgement instrument stabilizer, by the flow of control of quality flowmeter 1,2 and 3, making concentration successively is 36 * 10 -6μ mol/mol, 600 * 10 -6μ mol/mol and 1400 * 10 -6μ mol/mol background gas is the CO gas of air concentration (also can be nitrogen), and the demonstration numerical value when computing machine writes down out by digital recognition system judgement instrument stabilizer respectively also stores.Repeat said process 3 times, store demonstration numerical value respectively.In verification process, computing machine also will calculate and feed 1400 * 10 -6During CO, 90% o'clock response time of instrument stabilizer numerical value also stores.
Two, feed " air " of preparation, behind the zero point stability of judgement instrument, feeding and making concentration is 1400 * 10 -6μ mol/mol background gas is the CO gas of air concentration (also can be nitrogen), and the demonstration numerical value when computer recording goes out by digital recognition system judgement instrument stabilizer also stores.Repeat above process six times, store demonstration numerical value respectively.
Three, feed " air " of preparation, after being stablized by Computer Analysis instrument displayed value, computing machine is reconciled mass flowmeter and is fed 1400 * 10 -6The CO gas of μ mol/mol, after indicating value is stable, the record displayed value.Above-mentioned steps was repeated once in 15 minutes in every interval, repeated altogether 4 times.
According to the formula in the measurement verification regulations " JJG915-2008 Carbon Monoxide Detection alarm " of CO, and the call format of " Carbon Monoxide Detection alarm calibrating record " and " calibration certificate " or " rejection notice of verification ", Generate Certificate and print.

Claims (3)

1. toxic and harmful alarm Intelligent Measurement experimental provision, be to insert mixer through high pressure valve, tensimeter, reduction valve and mass flow controller respectively by different unstrpped gas steel cylinders, mixer output enters by test examination instrument by flowmeter, it is characterized in that: the electric signal of mass flow controller inserts computing machine by the I/O interface, and the computing machine output signal is through the valve of amplifying circuit quality of connection flow controller; Inserted computing machine through image acquisition recognition device and sound meter respectively by the sound of test examination instrument and picture output signal, computing machine connects printer.
2. toxic and harmful alarm Intelligent Measurement experimental provision according to claim 1 is characterized in that: mixer output also is connected to an emptying flow meter.
3. toxic and harmful alarm Intelligent Measurement experimental provision according to claim 1, it is characterized in that: it also is furnished with pick-up units such as adjustable D.C. regulated power supply, charger and electric current, voltage, frequency.
CN2010202043136U 2010-05-27 2010-05-27 Intelligent detecting and testing device for poisonous and harmful gas alarm Expired - Fee Related CN201680985U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202043136U CN201680985U (en) 2010-05-27 2010-05-27 Intelligent detecting and testing device for poisonous and harmful gas alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202043136U CN201680985U (en) 2010-05-27 2010-05-27 Intelligent detecting and testing device for poisonous and harmful gas alarm

Publications (1)

Publication Number Publication Date
CN201680985U true CN201680985U (en) 2010-12-22

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101839817A (en) * 2010-05-27 2010-09-22 抚顺市计量测试所 Experimental method for intelligent detection of poisonous and harmful gas alarm equipment and device thereof
CN106935003A (en) * 2017-04-27 2017-07-07 浙江聚森检测科技有限公司 Toxic and harmful siren detects operating desk
CN110954659A (en) * 2019-12-04 2020-04-03 日照市计量测试所 Intelligent gas distribution system for online detection
CN112067745A (en) * 2020-08-14 2020-12-11 北京航空工程技术研究中心 Oil gas concentration detection alarm system verification and calibration device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101839817A (en) * 2010-05-27 2010-09-22 抚顺市计量测试所 Experimental method for intelligent detection of poisonous and harmful gas alarm equipment and device thereof
CN106935003A (en) * 2017-04-27 2017-07-07 浙江聚森检测科技有限公司 Toxic and harmful siren detects operating desk
CN110954659A (en) * 2019-12-04 2020-04-03 日照市计量测试所 Intelligent gas distribution system for online detection
CN110954659B (en) * 2019-12-04 2022-02-01 日照市计量测试所 Intelligent gas distribution system for online detection
CN112067745A (en) * 2020-08-14 2020-12-11 北京航空工程技术研究中心 Oil gas concentration detection alarm system verification and calibration device

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101222

Termination date: 20130527