CN108982635A - The method of calibration and calibration equipment of Oxygen Measuring Instrument - Google Patents

The method of calibration and calibration equipment of Oxygen Measuring Instrument Download PDF

Info

Publication number
CN108982635A
CN108982635A CN201811200296.6A CN201811200296A CN108982635A CN 108982635 A CN108982635 A CN 108982635A CN 201811200296 A CN201811200296 A CN 201811200296A CN 108982635 A CN108982635 A CN 108982635A
Authority
CN
China
Prior art keywords
oxygen
sensor
zirconium oxide
measuring instrument
comparative analysis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811200296.6A
Other languages
Chinese (zh)
Other versions
CN108982635B (en
Inventor
张智明
张博闻
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENYANG MINGSHENG INSTRUMENT Co Ltd
Original Assignee
SHENYANG MINGSHENG INSTRUMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENYANG MINGSHENG INSTRUMENT Co Ltd filed Critical SHENYANG MINGSHENG INSTRUMENT Co Ltd
Priority to CN201811200296.6A priority Critical patent/CN108982635B/en
Publication of CN108982635A publication Critical patent/CN108982635A/en
Application granted granted Critical
Publication of CN108982635B publication Critical patent/CN108982635B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403Cells and electrode assemblies
    • G01N27/406Cells and probes with solid electrolytes
    • G01N27/407Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/409Oxygen concentration cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention discloses a kind of Oxygen Measuring Instruments, more particularly to the method for calibration and calibration equipment of a kind of Oxygen Measuring Instrument.Steps are as follows for the method for calibration of Oxygen Measuring Instrument: the oxygen amount data that the Zirconium oxide oxygen sensor on zirconia probe will test export oxidizing zirconium oxygen content transducer, data after operation are exported oxygen supply comparative analysis instrument by zirconium oxide oxygen content transducer, sampling pipe, sampling pump acquire the gas with Zirconium oxide oxygen sensor same position, gas collected is detected by lambda sensor, lambda sensor will test result output oxygen supply comparative analysis instrument, and oxygen comparative analysis instrument is shown after being analyzed the detection data received.The present invention does not destroy measuring point environment, does not influence production run, same point, the same time, and the detection check compared on the same interface of Oxygen Measuring Instrument is suitble to use under any environment, and detection data is accurate, provides more accurately data for equipment operation.

Description

The method of calibration and calibration equipment of Oxygen Measuring Instrument
Technical field
The present invention relates to a kind of Oxygen Measuring Instruments, more particularly to a kind of verification side of Oxygen Measuring Instrument Method and calibration equipment, it belongs to technology of instrument and meter field.
Background technique
Oxygen Measuring Instrument is made of zirconium oxide transmitter and zirconia probe, it is suitable for boiler exhaust gas etc. The detection of aspect oxygen content is a kind of easy, reliable measuring device.But existing Oxygen Measuring Instrument is due to quality Influence with the factors such as environment are measured, will cause the deviation of measured value, cause testing result inaccurate, this is required reliably Method carries out on-line testing to Oxygen Measuring Instrument, and the reason of error identifying.
Currently, traditional Oxygen Measuring Instrument on-line testing, is all Standard Gases standardization.In ideal conditions Under, the verification of these methods is possible, but under complicated operating condition, the method, there is following defects: 1, being aoxidized During zirconium oxygen analyzer works online, the pressure of oxidation zirconium electrode two sides be it is uneven, especially in burning boiler flue gas inspection, Test environment is often negative pressure, if the sealing of zirconium oxide detecting element is bad, there is leakage;The gas of reference electrode can leak into tested Measurement error is caused in pole.2 and the detection of traditional Standard Gases check addition, be that Standard Gases are passed through tested pole with conduit, see oxygen It measures show value and whether Standard Gases given value is consistent.But under working environment, general tested extremely negative pressure is passed through the pressure of Standard Gases Power compensates for the negative pressure of test environment, balances pressure at both sides, and the gas of reference electrode will not be leaked to tested pole, the value of verification There will not be error, will result in verify qualification with Standard Gases in this way, and actual measured value has error.3, Oxygen Measuring Instrument In working online, the ingredient of examined gas be it is complicated, can there is it is some interference oxidation zirconium measurements ingredients, burn It in the tail gas of boiler, such as burns bad, has the undesirable combustibility gas under normal operating condition such as carbon monoxide, methane Body;It needs since Oxygen Measuring Instrument has to zirconium oxide heated by electrodes to minimum 650 DEG C of characteristic, it can be in zirconium oxide electricity Pole measures chamber and generates second-time burning, consumes remaining oxygen amount, keeps measured value relatively low, and even zero.In this case, Standard Gases are used Check addition can not be detected.4, in addition all can there are also the moisture and reference electrode and the big pressure difference of tested interpolar in gas Oxygen Measuring Instrument measurement is had an impact.5, the sampling verification of other way does not accomplish not destroy measuring point environment, no Influence production run, same point, same time, the detection check compared on the same interface of Oxygen Measuring Instrument.In view of with The problem of upper is all Standard Gases check addition, and inspection does not measure researches and develops Oxygen Measuring Instrument calibration equipment, runs to equipment More accurate reliable data are provided, those skilled in the art's technical problem urgently to be solved is become.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of method of calibration of Oxygen Measuring Instrument and verification dresses It sets, it does not destroy measuring point environment shortly, does not influence production run, same point, the same time, same with Oxygen Measuring Instrument Compare detection check on interface, be suitble to use under any environment, detection data is accurate, provides for equipment operation and more accurately counts According to.
In order to solve the above-mentioned technical problem, the present invention is achieved through the following technical solutions:
A kind of method of calibration of Oxygen Measuring Instrument, its step are as follows: the Zirconium oxide oxygen sensor of zirconia probe will be examined Data after operation are exported oxygen supply ratio by the oxygen amount data output oxidizing zirconium oxygen content transducer measured, zirconium oxide oxygen content transducer Compared with analyzer, sampling pipe, sampling pump acquire the gas with Zirconium oxide oxygen sensor same position, and gas collected is passed through peroxide Sensor is detected, and lambda sensor will test result output oxygen supply comparative analysis instrument, the detection that oxygen comparative analysis instrument will receive Data are shown after being analyzed.
The gas of above-mentioned sampling pipe, sampling pump acquisition also passes through temperature sensor, flowmeter, firedamp sensor, an oxygen Change carbon sensor to be detected, testing result is exported after oxygen supply comparative analysis instrument is analyzed and shown.
A kind of calibration equipment of Oxygen Measuring Instrument, structure are as follows: the front end sample tap and zirconium oxide of sampling pipe The sample tap of probe is in same point, and the front end sample tap of sampling pipe is located at outside the shell of zirconia probe, sampling pipe and sampling Pump connects, and oxygen sensor, the signal output end of lambda sensor and the signal input part of oxygen comparative analysis instrument are arranged on sampling pipe It connects, the signal output end of the Zirconium oxide oxygen sensor on zirconia probe and the signal input part of zirconium oxide oxygen content transducer connect It connects, the signal output end of zirconium oxide oxygen content transducer is connect with the signal input part of oxygen comparative analysis instrument, zirconium oxide oxygen amount pick-up The signal input part of device and the signal output end of Zirconium oxide oxygen sensor connect.
Temperature sensor, flowmeter, firedamp sensor, carbon monoxide transducer, temperature are additionally provided on above-mentioned sampling pipe Sensor, flowmeter, firedamp sensor, carbon monoxide transducer signal output end and oxygen comparative analysis instrument signal input part Connection.
Above-mentioned sampling pipe is connect with radiator.
Above-mentioned oxygen comparative analysis instrument is made of single-chip microcontroller and display.
Above-mentioned single-chip microcontroller uses ATXMEGA32A4U single-chip microcontroller, and display uses 7 inch color touch screens.
The signal input part and Zirconium oxide oxygen sensor, temperature sensor, flowmeter, methane sensing of above-mentioned single-chip microcontroller The signal output end connection of device, lambda sensor, carbon monoxide transducer.
Above-mentioned temperature sensor uses PT100 temperature transducer;Firedamp sensor is sensed using catalyst fuel gas Device;Lambda sensor uses fluorescence lambda sensor;Carbon monoxide transducer uses electrochemical carbon monoxide sensor.
Above-mentioned sampling pipe is inserted into the furnace body in tested gasmetry region, and sampling pipe is connect with furnace sealing.
Due to the adoption of the above technical scheme, so that the invention has the advantages that and effect:
When detection check, the not work condition environment of destructive test point;Do not influence production run.Detection check point and zirconia probe are surveyed Amount point is same point, is not influenced by zirconia probe leakage, keeps detection more representative.It can be to zirconium oxide analysis of oxygen content The instantaneous value of instrument is compared analysis, and can detecte the influence of CO, fuel gas to oxygen content measurement simultaneously.Do not having to stop Machine, under conditions of tearing machine open, it can be determined that go out whether zirconia probe has leakage.The verification of combined standard gas, then detected with comparison method Verification, can provide accurate, reliable oxygen amount data for production run.It is more convenient to the sampling of measuring point, fast.The present invention is shortly not It destroys measuring point environment, influence production run, same point, same time, compared on the same interface of Oxygen Measuring Instrument Detection check is suitble to use under any environment, and detection data is accurate, provides more accurately data for equipment operation.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
In figure: 1, Zirconium oxide oxygen sensor, 2, zirconia probe, 3, sampling pipe, 4, sampling pump, 5, temperature sensor, 6, Flowmeter, 7, firedamp sensor, 8, lambda sensor, 9, carbon monoxide transducer, 10, radiator, 11, oxygen comparative analysis instrument, 12, Zirconium oxide oxygen content transducer, 13, tested gasmetry region, 14, furnace body, 15, display, 16, single-chip microcontroller.
Specific embodiment
Below with reference to embodiment, the present invention is described further.Following embodiment is only specific implementation of the invention Example, but the design concept of the present invention is not limited to this, it is all to be made a non-material change to the present invention using this design, it should all It belongs to behavior that violates the scope of protection of the present invention.
The method of calibration of Oxygen Measuring Instrument of the present invention is as follows: the Zirconium oxide oxygen sensor 1 of zirconia probe 2 will be examined Measure oxygen amount data output oxidizing zirconium oxygen content transducer 12, zirconium oxide oxygen content transducer 12 by the data after operation export to Oxygen comparative analysis instrument 11, sampling pipe 3, sampling pump 4 acquire the gas with 1 same position of Zirconium oxide oxygen sensor, gas collected Body is detected by lambda sensor 8, and lambda sensor 8 will test result output oxygen supply comparative analysis instrument 11, oxygen comparative analysis instrument 11 the detection data received is analyzed after shown.
The gas that above-mentioned sampling pipe 3, sampling pump 4 acquire also pass through temperature sensor 5, flowmeter 6, firedamp sensor 7, Carbon monoxide transducer 9 is detected, and testing result is exported after oxygen supply comparative analysis instrument 11 is analyzed and shown.
As shown in Figure 1, the calibration equipment of Oxygen Measuring Instrument of the present invention, specific structure are as follows: before sampling pipe 3 The sample tap of end sample tap and zirconia probe 2 is in same point, and the front end sample tap of sampling pipe 3 is located at zirconia probe 2 Outside shell, sampling pipe 3 is connect with sampling pump 4, on sampling pipe 3 be arranged oxygen sensor 8, the signal output end of lambda sensor 8 with The signal input part of oxygen comparative analysis instrument 11 connects, the signal output end and oxygen of the Zirconium oxide oxygen sensor 1 on zirconia probe 2 Change the signal input part connection of zirconium oxygen content transducer 12, the signal output end and oxygen comparative analysis instrument of zirconium oxide oxygen content transducer 12 11 signal input part connection, the signal input part of zirconium oxide oxygen content transducer 12 and the signal of Zirconium oxide oxygen sensor 1 export End connection.
Temperature sensor 5, flowmeter 6, firedamp sensor 7, carbon monoxide transducer 9 are additionally provided on above-mentioned sampling pipe 3, Temperature sensor 5, flowmeter 6, firedamp sensor 7, carbon monoxide transducer 9 signal output end and oxygen comparative analysis instrument 11 Signal input part connection.
Above-mentioned sampling pipe 3 is also connect with radiator 10.Sampling pipe 3 is inserted into the furnace body 14 in tested gasmetry region 13 Interior, sampling pipe 3 and furnace body 14 are tightly connected.
Above-mentioned oxygen comparative analysis instrument 11 is made of single-chip microcontroller 16 and display 15.The signal input part of single-chip microcontroller 16 with Zirconium oxide oxygen sensor 1, temperature sensor 5, flowmeter 6, firedamp sensor 7,8 carbon monoxide transducer 9 of lambda sensor letter The connection of number output end.Temperature sensor 5 uses PT100 temperature transducer;Firedamp sensor 7 is sensed using catalyst fuel gas Device;The use fluorescence lambda sensor of lambda sensor 8, measurement range, 0-25%;Carbon monoxide transducer 9 is aoxidized using electrochemistry one Carbon sensor, measurement range, 0-10000PPm.Single-chip microcontroller uses ATXMEGA32A4U single-chip microcontroller, and display uses 7 inches of coloured silks Color touch screen.
The connection structure of above-mentioned Zirconium oxide oxygen sensor 1, zirconia probe 2 and zirconium oxide oxygen content transducer 12 is existing Technology, using Chinese patent, Patent No. ZL 2,016 2 1130613.8, entitled Oxygen Measuring Instrument On-line sampling device.
The sampling of gas sampling point and zirconia probe must be same point, the same time, but will be in zirconia probe It samples outside shell, is influenced to ensure sample gas not by oxidation zirconium electrode leakage.The sampling pipe centainly sealing stringent with furnace body, no There can be the leakage of a bit, ensure that measurement check value is unaffected.
Zirconium oxide transmitter will have two-way output valve simultaneously, operate normally all the way for equipment, and another way input oxygen compares point Analyzer.
Working principle of the present invention is as follows: it is of the invention in the premise for not influencing Oxygen Measuring Instrument and normally measuring Under, in same observation station, the same time under same environment, the oxygen content of current measuring point is measured with another lambda sensor, and oxygen Change zirconium probe measurement values and another lambda sensor measured value, compares under same reference axis, to verify zirconium oxide analysis of oxygen content Instrument measured value, if correct.

Claims (10)

1. the method for calibration of Oxygen Measuring Instrument, it is characterised in that steps are as follows: the zirconium oxide oxygen on zirconia probe (2) The oxygen amount data that sensor (1) will test export oxidizing zirconium oxygen content transducer (12), and zirconium oxide oxygen content transducer (12) will Data after operation export oxygen supply comparative analysis instrument (11), and sampling pipe (3), sampling pump (4) acquire and Zirconium oxide oxygen sensor (1) The gas of same position, gas collected are detected by lambda sensor (8), and lambda sensor (8) will test result output Oxygen supply comparative analysis instrument (11), oxygen comparative analysis instrument (11) are shown after being analyzed the detection data received.
2. the method for calibration of Oxygen Measuring Instrument according to claim 1, it is characterised in that the sampling pipe (3), the gas of sampling pump (4) acquisition also passes through temperature sensor (5), flowmeter (6), firedamp sensor (7), carbon monoxide and passes Sensor (9) is detected, and testing result is exported after oxygen supply comparative analysis instrument (11) is analyzed and shown.
3. the calibration equipment of Oxygen Measuring Instrument, it is characterised in that structure is as follows: the front end sample tap and oxygen of sampling pipe (3) The sample tap for changing zirconium probe (2) is in same point, and the front end sample tap of sampling pipe (3) is located at outside the shell of zirconia probe (2), Sampling pipe (3) is connect with sampling pump (4), oxygen sensor (8) is arranged on sampling pipe (3), the signal output end of lambda sensor (8) It is connect with the signal input part of oxygen comparative analysis instrument (11), the signal of the Zirconium oxide oxygen sensor (1) on zirconia probe (2) is defeated Outlet is connect with the signal input part of zirconium oxide oxygen content transducer (12), the signal output end of zirconium oxide oxygen content transducer (12) with The signal input part of oxygen comparative analysis instrument (11) connects, and the signal input part and zirconium oxide oxygen of zirconium oxide oxygen content transducer (12) pass The signal output end of sensor (1) connects.
4. the calibration equipment of Oxygen Measuring Instrument according to claim 3, it is characterised in that the sampling pipe (3) On be additionally provided with temperature sensor (5), flowmeter (6), firedamp sensor (7), carbon monoxide transducer (9), temperature sensor (5), signal output end and the oxygen comparative analysis instrument (11) of flowmeter (6), firedamp sensor (7), carbon monoxide transducer (9) Signal input part connection.
5. the calibration equipment of Oxygen Measuring Instrument according to claim 3 or 4, it is characterised in that the sampling pipe (3) it is connect with radiator (10).
6. the calibration equipment of Oxygen Measuring Instrument according to claim 3 or 4, it is characterised in that the oxygen compares Analyzer (11) is made of single-chip microcontroller (16) and display (15).
7. the calibration equipment of Oxygen Measuring Instrument according to claim 6, it is characterised in that the above-mentioned list Piece machine (16) uses ATXMEGA32A4U single-chip microcontroller, and display (15) uses 7 inch color touch screens.
8. the calibration equipment of Oxygen Measuring Instrument according to claim 6, it is characterised in that the above-mentioned list The signal input part and Zirconium oxide oxygen sensor (1), temperature sensor (5), flowmeter (6), firedamp sensor of piece machine (16) (7), the signal output end connection of lambda sensor (8), carbon monoxide transducer (9).
9. the calibration equipment of Oxygen Measuring Instrument according to claim 8, it is characterised in that the temperature sensing Device (5) uses PT100 temperature transducer;Firedamp sensor (7) uses catalyst combustible gas sensor;Lambda sensor (8) is adopted With fluorescence lambda sensor;Carbon monoxide transducer (9) uses electrochemical carbon monoxide sensor.
10. the calibration equipment of Oxygen Measuring Instrument according to claim 3 or 4, it is characterised in that the sampling It manages (3) to be inserted into the furnace body (14) of tested gasmetry region (13), sampling pipe (3) and furnace body (14) are tightly connected.
CN201811200296.6A 2018-10-16 2018-10-16 Verification method and device for zirconia oxygen analyzer Active CN108982635B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811200296.6A CN108982635B (en) 2018-10-16 2018-10-16 Verification method and device for zirconia oxygen analyzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811200296.6A CN108982635B (en) 2018-10-16 2018-10-16 Verification method and device for zirconia oxygen analyzer

Publications (2)

Publication Number Publication Date
CN108982635A true CN108982635A (en) 2018-12-11
CN108982635B CN108982635B (en) 2024-02-13

Family

ID=64543627

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811200296.6A Active CN108982635B (en) 2018-10-16 2018-10-16 Verification method and device for zirconia oxygen analyzer

Country Status (1)

Country Link
CN (1) CN108982635B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111257394A (en) * 2018-12-31 2020-06-09 深圳硅基传感科技有限公司 Test platform for testing consistency of electrochemical parameters
CN113740490A (en) * 2021-08-26 2021-12-03 华能国际电力股份有限公司上海石洞口第一电厂 Fault detection and verification device and method for flue gas oxygen meter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH063318A (en) * 1992-06-17 1994-01-11 Yokogawa Electric Corp Zirconia gas analyzer
CN2685875Y (en) * 2003-07-17 2005-03-16 刘春宾 Integral Zirconia smoke oxygen analyzer
CN204302222U (en) * 2014-12-29 2015-04-29 深圳市荣鹰电子仪器有限公司 Zirconium oxide analyzer
CN206095729U (en) * 2016-10-18 2017-04-12 沈阳明盛仪表有限公司 Online sampling device of zirconia oxygen component analysis appearance
CN209148593U (en) * 2018-10-16 2019-07-23 沈阳明盛仪表有限公司 The calibration equipment of Oxygen Measuring Instrument

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH063318A (en) * 1992-06-17 1994-01-11 Yokogawa Electric Corp Zirconia gas analyzer
CN2685875Y (en) * 2003-07-17 2005-03-16 刘春宾 Integral Zirconia smoke oxygen analyzer
CN204302222U (en) * 2014-12-29 2015-04-29 深圳市荣鹰电子仪器有限公司 Zirconium oxide analyzer
CN206095729U (en) * 2016-10-18 2017-04-12 沈阳明盛仪表有限公司 Online sampling device of zirconia oxygen component analysis appearance
CN209148593U (en) * 2018-10-16 2019-07-23 沈阳明盛仪表有限公司 The calibration equipment of Oxygen Measuring Instrument

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
孟凡群;程明霄;许晋宁;: "基于工业以太网的氧化锆分析仪", 仪表技术与传感器, no. 05 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111257394A (en) * 2018-12-31 2020-06-09 深圳硅基传感科技有限公司 Test platform for testing consistency of electrochemical parameters
CN111257394B (en) * 2018-12-31 2021-08-31 深圳硅基传感科技有限公司 Test platform for testing consistency of electrochemical parameters
CN113740490A (en) * 2021-08-26 2021-12-03 华能国际电力股份有限公司上海石洞口第一电厂 Fault detection and verification device and method for flue gas oxygen meter

Also Published As

Publication number Publication date
CN108982635B (en) 2024-02-13

Similar Documents

Publication Publication Date Title
CN108982635A (en) The method of calibration and calibration equipment of Oxygen Measuring Instrument
CN209148593U (en) The calibration equipment of Oxygen Measuring Instrument
CN109884263B (en) Dissolved oxygen sensor test device and test method thereof
CN102998354B (en) Solid electrolyte gas sensor performance testing device
CN108982382A (en) A kind of calibration method of online total chromium analysis instrument
EP3292396B1 (en) Oxygen sensing probe/analyzer
CN106442680A (en) Calibration method for portable electrochemical-process dissolved oxygen meter
US4664886A (en) Trimode gas detection instrument
CN206095729U (en) Online sampling device of zirconia oxygen component analysis appearance
CN211317953U (en) High-temperature combustion hydrolysis collection device
CN211785301U (en) Wet oxygen probe for environmental monitoring
CN209690255U (en) A kind of Multiple Source Sensor calibration platform
CN210051885U (en) Electric energy data lossless digital direct current electric energy meter and field calibration system
KR870001484B1 (en) Gas analyzer with aspipated test gas
CN101545821A (en) Method for detecting inside leakage of waste gas air heat exchanger for heating furnace
CN217484237U (en) Measuring system for water content of IGCC (integrated gasification combined cycle) gas synthesis gas
CN2594793Y (en) Portable zirconium oxide oxygen sensor
CN214538370U (en) Online detection device for hydrogen leakage probe
CN210109074U (en) Portable oxygen concentration measuring device
CN205027695U (en) General oxygen gas analysis appearance
CN112781802B (en) Method and device for detecting sip leak equipment of fuel assembly on line
CN220320659U (en) Pipeline plug of measuring instrument
CN217305003U (en) Explosion-proof wet oxygen probe that environmental monitoring used
CN209673754U (en) A kind of balanced type environmental protection sampler
CN207963968U (en) A kind of gas pipeline flow tester

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant