CN107478702A - Explosion-proof zirconium oxide Zro2Detector - Google Patents
Explosion-proof zirconium oxide Zro2Detector Download PDFInfo
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- CN107478702A CN107478702A CN201710778647.0A CN201710778647A CN107478702A CN 107478702 A CN107478702 A CN 107478702A CN 201710778647 A CN201710778647 A CN 201710778647A CN 107478702 A CN107478702 A CN 107478702A
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- detector
- explosion
- zirconium oxide
- proof
- zirconium
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- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910001928 zirconium oxide Inorganic materials 0.000 title claims abstract description 29
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 81
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229940043774 zirconium oxide Drugs 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 16
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 239000001257 hydrogen Substances 0.000 claims abstract description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 13
- 230000035945 sensitivity Effects 0.000 claims abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 4
- 239000011707 mineral Substances 0.000 claims abstract description 4
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005245 sintering Methods 0.000 claims abstract description 4
- 238000003487 electrochemical reaction Methods 0.000 claims abstract description 3
- 239000002002 slurry Substances 0.000 claims abstract description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 19
- 229910052726 zirconium Inorganic materials 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 238000010586 diagram Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 4
- 239000003708 ampul Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 229910052571 earthenware Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- -1 bracelet Chemical compound 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims description 2
- 229910052762 osmium Inorganic materials 0.000 claims description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims 4
- 239000000919 ceramic Substances 0.000 claims 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 229920002521 macromolecule Polymers 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 210000002268 wool Anatomy 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 5
- 239000012159 carrier gas Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000001458 anti-acid effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010616 electrical installation Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4073—Composition or fabrication of the solid electrolyte
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4075—Composition or fabrication of the electrodes and coatings thereon, e.g. catalysts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4078—Means for sealing the sensor element in a housing
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)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
This explosion-proof zirconium oxide ZrO2Detector is the detector that a kind of high sensitivity only has response to hydrogen, oxygen, hydrocarbon, stupid, carbon monoxide etc..Its principle is exactly to be mixed in proportion using materials such as zirconium oxide mineral matter fine powder end and yttrium oxide fine powder ends, is pressed into the tubing string shape of blind hole, and one end camber, one end is bore, the tubular zirconium-oxide being molded through high temperature sintering.Platinum slurry is coated inside and outside tube wall, fires form that the two poles of the earth are anode respectively, here it is Zirconia detector for negative electrode again.Zirconia detector is embraced by explosion-proof casing, air jet pipe jet constant in closed cavity, Zirconia detector between 450 to 800 DEG C of temperature a bit, produce electrochemical reaction, signal the two poles of the earth that concentration potential caused by the constant temperature temperature is formed turn into voltage.In recording for record system, the complete spectrogram of the width of waveform formation one of signal voltage, the Wave crest and wave trough in spectrogram is exactly the impurity concentration value of tested component.
Description
Technical field
The present invention be core component in analytical instrument, instrument apply to national defence, space flight, fire-fighting, oil, chemical industry, agricultural,
Environmental protection, quality testing, manufacture, drilling well, mining, gas, coke-stove gas, refinery, nuclear energy, space flight, medical, biogas, smelting,
Hydrogen, oxygen, hydrocarbon, stupid, carbon monoxide measurement analysis in the field gases such as oxygen processed, semiconductor, printing and dyeing.
Technical background
Currently the detector in many analysis industries is to add kind of detector using hydrogen flame to analyze the hydrogen in industry
Gas, oxygen, hydrocarbon, stupid, carbon monoxide measurement.The cost of instrument first is high；Second, user's operating cost is high, it is a variety of to need
Source of the gas does carrier gas；Third, it is not explosion-proof, fourth, the sensitivity of the tested impurity of detector analysis is not high enough.If hydrogen flame detector
Or other detectors with hydrogen can not realize flame continuous monitoring, detector itself None- identified can not when causing danger
Automatic to close combustible hydrogen, detector itself is not also explosion-proof, needs high temperature to transport when being worked along with Zirconia detector
OK.Once the fuel gas at the untreated scene of will lighting well of burning things which may cause a fire disaster.Be more difficult to avoid is that hydrogen is There is no place one does not try to penetrate, staff
Inadvertent or non-timely processing at work, in instrument operation, just assemble within a certain period of time in a certain space, reach one
Determine concentration, due to instrument operation work can produce spark, electrostatic or the heating burning things which may cause a fire disaster of itself etc. light fuel gas cause it is quick-fried
It is fried, bring huge loss to enterprise, natural and man-made calamities to society bring the disaster that can not seriously retrieve and consequence, directly contribute it is negative
Face rings.Caused by how many factory of today's society, the blast of department, how many people know and are due to the sensor of instrument
.The explosion-proof zirconium oxide ZrO of the present invention2Detector successfully solve this it is heavy it is tired, to society bring it is safe and reliable,
Accurate quality assurance.
The content of the invention
The present invention realizes the detection of one of the core technology of the research and development of explosion-proof and non-explosion-proof industry, experiment, production, quality inspection
Device.Explosion-proof function is breached in instrument and meter, high temperature resistant reaches 450 DEG C, the detector of antiacid caustic corrosion gas, is point
Analyse the another core technology part of instrument field.The detector does not need hydrogen, combustion-supporting gas, it is only necessary to the cheap nitrogen of cost
Gas does carrier gas or does carrier gas with other inert gases, if the oxygen in Direct Analysis air, can be directly entered detector.
This detector can be completely achieved under conditions of closed, can normal work under 300 DEG C to 500 DEG C environment of high temperature
Make.Reason be detector material therefor high temperature resistant itself, antiacid alkali, corrosion, it is necessary at high temperature can normal work, ability
Detect hydrogen in gas, oxygen, hydrocarbon, stupid, carbon monoxide is micro, macroconcentration, this detector is because of high sensitivity, to some
Impurity analysis can detect ppb levels.
Technical principle
Explosion-proof zirconium oxide ZrO2Detector is a kind of high sensitivity to hydrogen, oxygen, hydrocarbon, stupid, carbon monoxide is micro, the inspection of constant
Survey device.Its principle is exactly to be mixed in proportion using materials such as zirconium oxide mineral matter fine powder end and yttrium oxide fine powder ends, is pressed into
Tubulose is shown in zirconium tubular construction figure in figure, through high temperature sintering shaping（22）Tubular zirconium-oxide.Coated in the inside and outside wall of zirconium pipe containing organic
The platinum slurry of thing mixture.All finish Deng the organic solution inside and outside tube wall, into firing, be warming up to by 50 DEG C of rank program ladders
1000 DEG C, purpose be exactly organic matter in burn off zirconium pipe, the otherwise sensitivity of detector can give a discount.First rank is 50 DEG C of constant temperature
2 hours, second-order was 200 DEG C of constant temperature 2 hours, and the 3rd rank is 500 DEG C of constant temperature 5 hours, and fourth order is 800 DEG C of constant temperature 10 hours,
5th rank is 1000 DEG C of constant temperature 10 hours, is down to 800 DEG C of constant temperature 100 hours, and Temperature fall forms the two poles of the earth of Zirconia detector
(24) platinum layer is formed, forms (22) zirconia solid dielectric between the two poles of the earth, inwall platinum layer is (12) anode, outer wall
(13) negative electrode.The platinum of organic admixture starches a small amount of rare metals such as the platinum contained, osmium, iridium, palladium, bracelet.
Sensors work principle is as schemed（Zirconium oxide fundamental diagram）It is shown：Analyze the zirconium oxide detection that gas enters sealing
Spray to zirconium inside pipe wall layer platinum in device, by air jet pipe, zirconium pipe the two poles of the earth are existed by temperature controller temperature control in constant high temperature（450
DEG C to 800 DEG C）Between, oxygen concentration reaction is produced in the presence of the electrolyte of zirconia solid, produces concentration potential.
Such as pure nitrogen or inert gas, the inside that Zirconia detector is hit in the case where flow is certain produces perseverance
Fixed electrochemical reaction forms fixed potential relation, forms a voltage signal between the two poles of the earth, here it is the reference in instrument
Datum mark, if gas chromatograph, this point be recorded instrument record in real time just be baseline or horizontal line, zero point, background
Voltage.
Signal is produced on condition that the outer wall or negative electrode of Zirconia detector are adjacent with air, formation reference air, reference platinum
Au cathode（Zirconium oxide tube wall outer layer）, zirconia solid electrolyte, the electric platinum anode of measurement（Zirconium oxide tube wall internal layer）, pure gas
Body or tested gas, heating-up temperature, unimpeded air-flow, it is closed in the case of the inside of Zirconia detector produce potential electrification occur
Learn reaction.Tested gas composition produces mutation in the inside for hitting high-temperature oxydation zirconium detector, generation electrochemistry is anti-in potential
Should, at this moment reference point fluctuates, and is recorded by recorder and forms spectrogram with regard to forming electric wave signal, here it is measured matter
Content.
Because the structure of matter of gas is different, just different in the chemical property of pyroreaction, Zirconia detector is to oxygen
Potential is into positive voltage, to hydrogen, hydro carbons and carbon monoxide into negative voltage.Zirconia detector is to oxygen, oxidation material, reproducibility gas
Body, carbon hydrocarbon compound, there is high sensitivity, it is extremely low to the response of the gas such as inert gas and nitrogen, carbon dioxide to reactionless.Oxygen
Change zirconium detector to work in carbon monoxide high temperature for a long time, can cause the poisoning of zirconia solid electrolyte that material occurs and go bad, drop
The sensitivity of low detector is even scrapped, it is impossible to produces potential.
Zirconia detector works in explosion-proof casing, the background voltage of detector by：Temperature, air-flow, tested gas contain
Amount, change to determine the fluctuating change amplitude of background baseline.The purity of inert gas or nitrogen determines the linear width of detector
The sensitivity of narrow i.e. detector.The background baseline voltage of detector is steady by the temperature of detector and the concentration of this spirit and air-flow
It is qualitative, and the sealing of detector determines the sensitivity of background voltage, the optimum voltage of background is between 180 to 270 millivolts.
If it is big that Zirconia detector does the oxygen content that should be noted that carrier gas that chromatograph uses, the sensitivity decrease of detector can be caused.
Embodiment.
Brief description of the drawings
Fig. 1：Summary figure
Fig. 2：Zirconia detector fundamental diagram
Fig. 3：Zirconium tubular construction figure
Fig. 4：Zirconia detector structure principle chart
This detector is in strict accordance with " canonical reference：《Chemical industry on-line gas chromatography》HG/T4095-2009、GB 3836.1-
2000/GB 3836.1-2010 explosion gas environment electrical installation Part I：General Requirement, GB 3836.5-2004 are quick-fried
Fried gaseous environment electrical installation Part V：Ex "p" enclosure " P ", GB 9669.1-1998 industrial products specification general provisions,
The analytical instrument test methods of GB/T 11606 " and design, process, produce, use.
The making of zirconium pipe is mixed in proportion from materials such as zirconium oxide mineral matter fine powder end and yttrium oxide fine powder ends, is pressed into
Guan Rutu zirconium tubular construction figures, the earthenware through high temperature sintering shaping →（22）Zirconia solid dielectric →（24）Platinum layer →
（12）Anode →（13）Negative electrode.
Shown in the work structuring principle and structure principle chart of Zirconia detector：(1) air inlet → (2) check-valves → (3)
Air jet pipe pressure cap →（4）Air jet pipe sealing gasket →（5）Hyperlink transition head →（6）Flow sensor →（7）Gas outlet →（8）Back-fire relief
Device →（9）Zirconium seal of tube pad →（10）Zirconium pipe pressure cap →（11）Explosion-proof support set →（12）Signal anode →（13）Signal negative electrode →
（14）Signal isolation post →（15）Heater strip L poles →（16）Heater strip N poles →（17）High voltage insulating column →（18）Attemperator →
（19）Heater strip →（20）Quartz ampoule →（21）Air jet pipe →（22）Zirconia solid meson →（23）Temperature element →（24）Platinum
Layer gold →（25）Explosion-proof casing →（26）Temperature element insulated column →（27）Temperature element negative pole →（28）Temperature element positive pole →
（29）Recorder →（30）Temperature controller.
The caliber of zirconium oxide is less than 20 millimeters, and wall thickness is less than 2 millimeters, and length is small 200 millimeters.
Air jet pipe is using materials such as quartz ampoule, earthenware, diamond spar pipes, and caliber is less than 16 millimeters, and internal diameter is less than 5 millimeters.
Insulated column is earthenware, quartz or high temperature resistant, the synthesis of polymer material of high impedance using material.
Housing synthesizes intermetallic composite coating using 316L stainless steels, NS33, Hastelloy etc. and formed.
Temperature element is the primary feedback signal of measurement temperature and control detector temperature.
The function of heater strip is the guarantee to detector heating hand-held supplying heat source.
The key point of invention
1st, this sensors work theory structure is simple, and zirconium tube chamber small volume signal sensitivity is high；
2nd, this detector high temperature resistant, acid-alkali-corrosive-resisting gas；
3rd, the housing of this detector uses explosion-proof explosion-proof casing；
4th, check-valves is used at the air intake of this detector, outlet prevents the flame extension point of detector combustion chamber using spark arrester
Fire the explosion precaution of the fuel gas of downstream and upstream；
5th, the check-valves in this detector employ unique design, special piston seal material, special piston processing technology,
Cavity volume is small, dead angle is small, has accomplished only to enter the characteristics of not flowing back；
6th, this detector realizes the function such as explosion-proof, flame proof, corrosion-resistant, high temperature, back-fire relief using this detector is schemed.
Claims (9)
1. explosion-proof zirconium oxide ZrO2Detector is that a kind of high sensitivity only has response to hydrogen, oxygen, hydrocarbon, stupid, carbon monoxide etc.
Detector, mixed in proportion using materials such as zirconium oxide mineral matter fine powder end and yttrium oxide fine powder ends, be pressed into the tubing string of blind hole
Shape, the tubular zirconium-oxide being molded through high temperature sintering, platinum is coated inside and outside tube wall forming the two poles of the earth is respectively：Anode, negative electrode
Form Zirconia detector；Zirconia detector, air jet pipe jet constant in closed cavity, oxygen are embraced by explosion-proof casing
Change the generation electrochemical reaction at a certain temperature of zirconium detector, the signal that concentration potential caused by the constant temperature temperature is formed
The two poles of the earth turn into voltage, and tested impurity forms different voltage by detector, in recording for record system, the ripple of signal voltage
Shape forms the complete spectrogram of a width, and the Wave crest and wave trough in spectrogram is just tested the impurity concentration value of component, is claimed as follows：
Be claimed explosion-proof zirconium oxide ZrO2 detectors as shown in FIG. by：Zirconium tubular construction figure, Zirconia detector structural principle
The methods such as figure, the design of Zirconia detector fundamental diagram, logic, assembling, method, principle, work, function.
2. explosion-proof zirconium oxide ZrO2 detector zirconiums pipe diameter, length is claimed：The diameter of zirconium pipe is between 3 to 40 millimeters, wall
Thickness is between 0.1 to 7 millimeters；The diameter of zirconium pipe is between 3 to 400 millimeters.
3. jet pipe diameter, length, material in explosion-proof zirconium oxide ZrO2 detectors is claimed：Jet tube material be quartz ampoule,
Body made by the material such as earthenware, alundum tube or diatomite, zirconium oxide, silica, diameter between 0.2 to 37 millimeters,
Wall thickness is between 0.1 to 7 millimeters, between 2 to 390 millimeters of length.
4. the metal level that explosion-proof zirconium oxide ZrO2 detectors zirconium tube wall both sides are applied is claimed：Metal level is mixed by organic matter
The rare metals such as the homemade platinum slurry of thing and metal institute, the platinum contained, osmium, iridium, palladium, bracelet, silver.
5. be claimed explosion-proof zirconium oxide ZrO2 detectors as shown in FIG. by：Heating in Zirconia detector fundamental diagram
Methods and constant temperature scope：Heating uses AC power or dc source, temperature element temperature control, and explosion-proof casing fills resistance to height
Warm, high insulating oxide zirconium, silica, ceramics, silica wool are heat-insulated, or the methods of method of vacuum heat-insulation etc..
6. it is claimed in the Zirconia detector fundamental diagram of explosion-proof zirconium oxide ZrO2 detectors（12）Signal anode,（13）
Voltage range is between 100 to 300 millivolts caused by signal negative electrode.
7. it is claimed in the Zirconia detector fundamental diagram of explosion-proof zirconium oxide ZrO2 detectors（15）Heater strip L poles,
（16）Heater strip N poles（19）Heater strip,（20）Quartz ampoule,（23）Temperature element →（24）Platinum layer,（27）Temperature element negative pole,
（28）Some steady temperatures of temperature element positive pole and control temp precision between 500 DEG C to 800 DEG C.
8. it is claimed in the Zirconia detector fundamental diagram of explosion-proof zirconium oxide ZrO2 detectors（1）Air intake,（7）Outlet
Flow velocity of the mouth through air jet pipe is between 5 to 500 milliliters.
Mutually intersect with anti-riot housing 9. being claimed in the Zirconia detector fundamental diagram of explosion-proof zirconium oxide ZrO2 detectors
The material that the insulated column that adds uses is zirconium oxide, silica, ceramics, quartz and high temperature resistant, high pressure, the material such as macromolecule of high impedance
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710778647.0A CN107478702A (en) | 2017-09-01 | 2017-09-01 | Explosion-proof zirconium oxide Zro2Detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710778647.0A CN107478702A (en) | 2017-09-01 | 2017-09-01 | Explosion-proof zirconium oxide Zro2Detector |
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| Publication Number | Publication Date |
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| CN107478702A true CN107478702A (en) | 2017-12-15 |
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| CN201710778647.0A Pending CN107478702A (en) | 2017-09-01 | 2017-09-01 | Explosion-proof zirconium oxide Zro2Detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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