CN108693132A - A kind of integrated gas analyzer and its application method based on photoelectric sensing principle - Google Patents
A kind of integrated gas analyzer and its application method based on photoelectric sensing principle Download PDFInfo
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- CN108693132A CN108693132A CN201810486998.9A CN201810486998A CN108693132A CN 108693132 A CN108693132 A CN 108693132A CN 201810486998 A CN201810486998 A CN 201810486998A CN 108693132 A CN108693132 A CN 108693132A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 94
- 230000008676 import Effects 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 238000005516 engineering process Methods 0.000 claims abstract description 12
- 239000004065 semiconductor Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 294
- 229910018503 SF6 Inorganic materials 0.000 claims description 41
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 39
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 claims description 26
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 23
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 22
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 21
- 238000000354 decomposition reaction Methods 0.000 claims description 18
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 17
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 238000004064 recycling Methods 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002808 molecular sieve Substances 0.000 claims description 8
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 230000008901 benefit Effects 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000035484 reaction time Effects 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 16
- 238000009413 insulation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 230000005518 electrochemistry Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 206010020843 Hyperthermia Diseases 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- HNBFUFIYQWYCDM-UHFFFAOYSA-N oxygen(2-) sulfane titanium(4+) Chemical compound [O--].[O--].S.[Ti+4] HNBFUFIYQWYCDM-UHFFFAOYSA-N 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013066 combination product Substances 0.000 description 1
- 229940127555 combination product Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000003682 fluorination reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- -1 micro-moisture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- OBTWBSRJZRCYQV-UHFFFAOYSA-N sulfuryl difluoride Chemical compound FS(F)(=O)=O OBTWBSRJZRCYQV-UHFFFAOYSA-N 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- LSJNBGSOIVSBBR-UHFFFAOYSA-N thionyl fluoride Chemical compound FS(F)=O LSJNBGSOIVSBBR-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
Abstract
The invention discloses a kind of integrated gas analyzers based on photoelectric sensing principle, absorption techniques are composed in conjunction with non-dispersive infrared and variable semiconductor laser gas detection technology is realized and gas different component is analyzed and detected respectively, including inlet suction port, the first four-way valve, the accurate measurement sensor group of gas, moisture measurement module, gas purity measurement module, the second four-way valve and air outlet adapter, the import of first four-way valve is connected by pipeline with inlet suction port, and the outlet of the second four-way valve is connected by pipeline with air outlet adapter.The present invention can realize quantitative, accurate detection, and cross jamming phenomenon is not present;And taking tolerance few, the reaction time is fast, and service life is long, and null offset is not present;It can realize the accurate measurement to corrosive gas;Instrument long-time stability are good, affected by environment small;Cost advantage control is apparent, in conjunction with the cost characteristics of two kinds of technologies, uses different testing principles for gas with various, is conducive to portable apparatus industrialization promotion.
Description
Technical field
The invention belongs to air insulating device integrated gas analysis technical fields, and photoelectric sensing is based on more particularly, to one kind
The integrated gas analyzer and its application method of principle.
Background technology
Sulfur hexafluoride(SF6)Gas has excellent insulation and arc extinction performance, can greatly reduce and set as dielectric
Standby size, therefore it is widely used in gas insulation breaker, gas insulated combined electrical equipment(Gas Iusulated Sub
Station, GIS), transformer, in the various electrical equipments such as mutual inductor.According to incompletely statistics, national SF6High-voltage switch gear and complete
Switchgear GIS reaches hundreds thousand of, it has also become the capital equipment of electric system, safety of the application to raising power generation
Economical operation plays a good role.Pure SF6Chemical property is stablized, and is not easily decomposed under normal condition.However, due to SF6
Air insulating device is likely to occur various defects in manufacture, installation or operation, and then discharges(Arc discharge, spark are put
Electricity, shelf depreciation)And overheating fault, lead to SF6Gas is decomposed, and a variety of low-fluorine sulfides are generated, these low-fluorine sulfides
Hydrogen fluoride can be generated with the impurity such as micro-moisture, oxygen existing for equipment inside(HF), sulfur dioxide(SO2), hydrogen sulfide(H2S),
It is fluorinated thionyl(SOF2), fluorination sulfonyl(SO2F2)Etc. compounds.If electric discharge phenomena appear near solid dielectric insulation, will also
Generate CF4,CO,CO2Deng decomposition combination product.
Practical studies show to pass through SO2Content ratio can analyze and determine electric discharge severe degree and equipment whether hyperthermia and superheating;
Pass through H2S gas component content sizes come whether failure judgement is related to solid insulation;CO and CO2It can be as the spy of apparatus overheat
Levy gas;And pass through CF4Gas content can analyze and determine solid insulation situation.
Sulfur hexafluoride SF6Air insulating device is likely to occur various defects in manufacture, installation or operation, and then puts
Electricity and overheating fault, lead to SF6Gas is decomposed, and practical studies show to pass through SO2Content ratio can analyze and determine that electric discharge is acute
Strong degree and equipment whether hyperthermia and superheating;Pass through H2S gas component content sizes come whether failure judgement is related to solid insulation;CO
Gas and CO2Gas can be as the characteristic gas of apparatus overheat;And pass through CF4Gas content can analyze and determine solid insulation feelings
Condition.
At present for SF6The main Applied Electrochemistry sensor of detection of decomposition product is to SO2,HF,CO,H2The gases such as S carry out
Detection, and the features such as electrochemical sensor is influenced there are null offset, easily by cross jamming, service life is short, this is allowed for pair
SF6The measurement of decomposition product is not accurate enough, reliability is poor.
It is commonly used currently on the market to have three classes product, i.e. gas detecting tube, the decomposition production based on electrochemical sensor
Object tester, gas chromatograph.Live directly detection can be carried out using colorimetric cylinder at present, its main feature is that it is easy to operate, it is easy
Easy, air consumption is few, takes short;But colorimetric tube method detection sensitivity used at present is relatively low, can only make qualitative or sxemiquantitative
Detection, and can only be disposable.Electrochemical sensor detection method is a kind of more universal mode of current onsite application,
The SO being chiefly used in sulfur hexafluoride electrical equipment2,H2S, the detection of the gases such as HF, CO, its main feature is that it is easy to operate, it is easy, it takes
Short, air consumption is few;But exist easily influenced by cross jamming, short life, null offset phenomena such as so that measure it is inaccurate, can
It is poor by property.Gas chromatograph scene used is portable apparatus, is chiefly used in CF4,CO2And C3F8The detection of gas, its main feature is that
Amount of samples is less, high sensitivity, accurate reliable, but detectability is limited by standard sample and chromatogram separating capacity, and by
Sampling level influences.
Therefore, there is an urgent need for research and develop a new integrated gas analytical equipment that can be used in air insulating device.
Authorization Notice No. is that the utility model patent of CN202854298U discloses a kind of SF6Inflatable breaker insulation shape
State on-Line Monitor Device, it includes SF6Inflatable breaker(1), in SF6Inflatable breaker(1)On be connected with gas circulation prison
Test tube(17), monitor and manage in gas circulation(17)On be serially connected with air inlet switch solenoid valve(6), electrochemistry and infrared ray sensing equipment
(7), return-air switch electromagnetic valve(10)And force (forcing) pump(12), in electrochemistry and infrared ray sensing equipment(7)On be connected with data and adopt
Collect unit(11), control unit(13)With display transmission unit(14), control unit(13)With air inlet switch solenoid valve(6), return
Air cock solenoid valve(10)And force (forcing) pump(12)Connection.The utility model can be implemented to SF6The on-line monitoring of breaker is supervised in real time
Survey SF6Purity and decomposition product situation, SF can be analyzed6The health status of breaker can be prevented because of SF6Circuit breaker failure.So
And the utility model is using electrochemical sensor, exist easily influenced by cross jamming, short life, null offset phenomena such as,
So that measuring inaccuracy, reliability is poor.
Authorization Notice No. is that the utility model patent of CN202939124U discloses a kind of infrared-difference SF6Decomposition product exists
Line analysis instrument, including data processor, transformer, display screen, measurement sensor, input-output equipment, lithium battery, wherein:Become
Depressor, display screen, input-output equipment, lithium battery are connected with data processor respectively, measurement sensor and data processor phase
Even, and it is arranged several according to the quantity of infrared light supply.The quantity of infrared light supply is related with the quantity of measurement of species, measures sensing
Device and the infrared light supply correspond, infrared-difference SF6Decomposition product in-line analyzer uses the original of laser spectral analysis method
Reason.By adopting the above-described technical solution, when the utility model has wide high certainty of measurement, measurement range, high sensitivity, measures
It is not afraid of the low advantage of pollution, maintenance cost.However, the utility model patent is more general to the summary of spectral absorption technology, do not have
There are the advantage and disadvantage that Infrared spectra adsorption technology and laser gas absorption techniques are considered from performance and cost etc., to not
Practical application conducive to product and industrialization promotion.
Invention content
In view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of based on photoelectric sensing principle
Integrated gas analyzer and its application method can realize quantitative, accurate detection, cross jamming phenomenon are not present;And take gas
Amount is few, and the reaction time is fast, and service life is long, and null offset is not present;It can realize the accurate measurement to corrosive gas;Instrument
Long-time stability are good, affected by environment small;Cost advantage control is apparent, in conjunction with the cost characteristics of two kinds of technologies, for different gas
Body uses different testing principles, is conducive to portable apparatus industrialization promotion.
In order to achieve the above objectives, the present invention uses following technical scheme:
A kind of integrated gas analyzer based on photoelectric sensing principle composes absorption techniques and variable semiconductor in conjunction with non-dispersive infrared
Laser gas detection technique is realized respectively to be analyzed and is detected to gas different component, including inlet suction port, the first four-way valve,
The accurate measurement sensor group of gas, moisture measurement module, gas purity measurement module, the second four-way valve and air outlet adapter, it is described
The import of first four-way valve is connected by pipeline with the inlet suction port, and the outlet of second four-way valve passes through pipeline and institute
Air outlet adapter is stated to be connected;
The first outlet of first four-way valve is connected by pipeline with the import of the accurate measurement sensor group of the gas, institute
State the outlet of the accurate measurement sensor group of gas by pipeline successively with the first of the first check valve and second four-way valve into
Mouth is connected;
The second outlet of first four-way valve is connected by pipeline with the import of the moisture measurement module, and the humidity is surveyed
The outlet of amount module is connected with the second import of the second check valve and second four-way valve successively by pipeline;
The third outlet of first four-way valve is connected by pipeline with the import of the gas purity measurement module, the gas
The outlet of body purity determination module is connected with the third import of third check valve and second four-way valve successively by pipeline.
Further, the accurate measurement sensor group of the gas include the carbon tetrafluoride photoelectric sensor being cascaded,
Sulfur dioxide photoelectric sensor, carbon monoxide photoelectric sensor and hydrogen sulfide photoelectric sensor.
Further, the moisture measurement module includes humidity gas chamber and is arranged in the indoor humidity sensor of humidity gas
Device.
Further, the gas purity measurement module include the sulfur hexafluoride purity photoelectric sensor that is cascaded and
Carbon tetrafluoride purity photoelectric sensor.
Further, the air outlet adapter has vent gas treatment recycling module, the vent gas treatment recycling by piping connection
Module includes molecular sieve filter, active carbon filter and the gas collection bag being sequentially connected by pipeline.
Further, is provided on the pipeline between first four-way valve and the accurate measurement sensor group of the gas
One needle-valve is provided with the first electronic flowmeter between the accurate measurement sensor group of gas and first check valve.
Further, it is provided with the second needle-valve on the pipeline between first four-way valve and the moisture measurement module,
It is provided with the second electronic flowmeter on pipeline between the moisture measurement module and second check valve.
Further, it is provided with third needle on the pipeline between first four-way valve and the gas purity measurement module
Valve is provided with third electronic flowmeter between the gas purity measurement module and the third check valve.
Further, the application method of the integrated gas analyzer based on photoelectric sensing principle is as follows:
A. inlet suction port is connected with the valve of gas insulated electric apparatus to be detected, and opens the first four-way valve and the two or four
Port valve;
B. when needing to decomposition product hydrogen sulfide, sulfur dioxide, carbon monoxide and the tetrafluoride inside gas insulated electric apparatus
When carbon gas is detected, the first needle-valve is opened, and close the second needle-valve and third needle-valve;
C. when need to inside gas insulated electric apparatus sulfur hexafluoride gas and carbon tetrafluoride gas carry out purity detecting when,
Third needle-valve is opened, and closes the first needle-valve and the second needle-valve;
D. when needing to be detected the micro-water content inside gas insulated electric apparatus, the second needle-valve is opened, and close
First needle-valve and third needle-valve;
E. when needing to decomposition product hydrogen sulfide gas, sulfur dioxide gas, the carbon monoxide inside gas insulated electric apparatus
When the gas concentration and sulfur hexafluoride gas of gas and carbon tetrafluoride gas and the purity of carbon tetrafluoride gas are detected,
The first needle-valve and third needle-valve are opened, and closes the second needle-valve;
F. when needing to decomposition product hydrogen sulfide gas, sulfur dioxide gas, the carbon monoxide inside gas insulated electric apparatus
When the gas concentration and micro-water content of gas and carbon tetrafluoride gas are detected, the first needle-valve and the second needle-valve are opened,
And close third needle-valve;
G. when needing to the purity of sulfur hexafluoride gas and carbon tetrafluoride gas inside gas insulated electric apparatus and micro
When water content is detected, the second needle-valve and third needle-valve are opened, and close the first needle-valve.
F. pass through the second four-way valve outlet discharge tail gas pass sequentially through molecular sieve filter and active carbon filter into
Row tail gas filtering finally recycles the tail gas for completing filtering using gas collection bag.
The beneficial effects of the invention are as follows:
The present invention is directed to SF in current air insulating device6The main Applied Electrochemistry sensor of detection of decomposition product is to SO2,
HF,CO,H2The gases such as S are detected, and electrochemical sensor is influenced there are null offset, easily by cross jamming, service life
The features such as short, this is allowed for SF6Decomposition product measures the problem not accurate enough, reliability is poor, provides a kind of based on light
The integrated gas analyzer of electric sensing principle composes absorption techniques and variable semiconductor laser gas detection skill in conjunction with non-dispersive infrared
Art is realized respectively to be analyzed and is detected to gas different component, including inlet suction port, the first four-way valve, gas accurately measure biography
Sensor group, moisture measurement module, gas purity measurement module, the second four-way valve and air outlet adapter, first four-way valve into
Mouth is connected by pipeline with the inlet suction port, and the outlet of second four-way valve is connected by pipeline with the air outlet adapter
It is logical;The first outlet of first four-way valve is connected by pipeline with the import of the accurate measurement sensor group of the gas, institute
State the outlet of the accurate measurement sensor group of gas by pipeline successively with the first of the first check valve and second four-way valve into
Mouth is connected;The second outlet of first four-way valve is connected by pipeline with the import of the moisture measurement module, described
The outlet of moisture measurement module is connected with the second import of the second check valve and second four-way valve successively by pipeline;Institute
The third outlet for stating the first four-way valve is connected by pipeline with the import of the gas purity measurement module, the gas purity
The outlet of measurement module is connected with the third import of third check valve and second four-way valve successively by pipeline.
The present invention is conducive to laser sensor and realizes to H2S gases, O2And H2The detection of O utilizes infrared sensor realization pair
SF6Gas, SO2Gas, CF4Gas and CO gases realize that detection, gas enter instrument internal by inlet suction port, pass through first
Four-way valve is divided into 3 tunnels and realizes that gas detection, the wherein first branch are used for CF4Gas, CO gases, SO2Gas and H2S gas
Body, O2Gas realizes detection, and realizes gas flow control by the first needle-valve and the first electronic flowmeter, and first is unidirectionally controlled
Valve is used for the one-way flow of gas;The second branch realizes the detection of humidity using humidity sensor, and passes through the second needle-valve and the
Two electronic flowmeters realize that gas flow control, the second one-way control valve are used for the one-way flow of gas;Third branch for pair
SF6Gas, CF4Gas purity is detected, and realizes gas flow control by third needle-valve and third electronic flowmeter, the
Three one-way control valves are used for the one-way flow of gas;Final three road gas is connected by the second four-way valve and is discharged by air outlet adapter,
And it is handled by subsequent vent gas treatment recycling module.
Compared with prior art, the present invention also has the advantages that:
First, it can realize quantitative, accurate detection, cross jamming phenomenon is not present;
Second, take tolerance few, the reaction time is fast;
Third, service life are long;
4th, it can realize the accurate measurement to corrosive gas, long-time stability are good, not affected by environment;
5th, cost advantage control is apparent, in conjunction with the characteristics of two kinds of technologies and manufacturing cost, for gas with various using different
Testing principle is conducive to the industrialization promotion of product;
6th, the monitor module of the analyzer need not use decompression instrument that can realize the on-line monitoring of gas, simplify and set
Standby and operating process, to be greatly saved equipment cost;
7th, which can further use control analysis system platform to realize that the remote auto of monitoring device is calibrated, pole
Big saves human resources and cost;
8th, it can expand and be applied to on-line monitoring, to realize remote online monitoring.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and is obtained in book, claims and attached drawing.
Description of the drawings
Fig. 1 is the structure diagram of the first embodiment of the invention;
Fig. 2 is the accurate measurement sensor group structure diagram of gas in the present invention;
Fig. 3 is moisture measurement modular structure block diagram in the present invention;
Fig. 4 is gas purity measurement module structure diagram in the present invention;
Fig. 5 is the structure diagram of second of embodiment of the invention;
Fig. 6 is the structure diagram of the third embodiment of the invention.
Specific implementation mode
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that is used in the specification of the present invention arranges
It refers to there are the feature, integer, step, operation, element and/or component, but it is not excluded that presence or addition to take leave " comprising "
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or coupling.Wording used herein
"and/or" includes any cell of one or more associated list items and all combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) there is meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or the meaning of too formal be explained.It should manage
Solution, in order to enable technical solution is definitely, " front, back, left, right, up, down " used herein etc. indicates that the term in orientation is
Relative to the term position of Fig. 1, not because of the conversion changing location form of presentation of view.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
The every other embodiment that personnel are obtained, shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of integrated gas analyzer based on photoelectric sensing principle, in conjunction with non-spectral red
Outer spectrum absorption techniques and variable semiconductor laser gas detection technology are realized respectively to be analyzed and is detected to gas different component,
Mould is measured including inlet suction port 1, the first four-way valve 2, the accurate measurement sensor group 3 of gas, moisture measurement module 4, gas purity
The import of block 5, the second four-way valve 6 and air outlet adapter 7, first four-way valve 2 is connected by pipeline with the inlet suction port 1
Logical, the outlet of second four-way valve 6 is connected by pipeline with the air outlet adapter 7.
The import phase that the first outlet of first four-way valve 2 passes through the accurate measurement sensor group of pipeline and the gas 3
Connection, the outlet of the accurate measurement sensor group of the gas 3 by pipeline successively with the first check valve 8 and second four-way valve
6 the first import is connected.
The second outlet of first four-way valve 2 is connected by pipeline with the import of the moisture measurement module 4, described
The outlet of moisture measurement module 4 is connected with the second import of the second check valve 9 and second four-way valve 6 successively by pipeline
It is logical.
The third outlet of first four-way valve 2 is connected by pipeline with the import of the gas purity measurement module 5,
The outlet of the gas purity measurement module 5 passes through the pipeline successively third with third check valve 10 and second four-way valve 6
Import is connected.
The accurate measurement sensor group 3 of gas includes the carbon tetrafluoride photoelectric sensor 31 being cascaded, titanium dioxide
Sulphur photoelectric sensor 32, carbon monoxide photoelectric sensor 33 and hydrogen sulfide photoelectric sensor 34.
The moisture measurement module 4 includes humidity gas chamber 41 and the humidity sensor being arranged in the humidity gas chamber 41
42。
The gas purity measurement module 5 includes the sulfur hexafluoride purity photoelectric sensor 51 and tetrafluoride being cascaded
Carbon purity photoelectric sensor 52.
In the embodiment, a kind of integrated gas analyzer based on photoelectric sensing principle is provided, is composed in conjunction with non-dispersive infrared
Absorption techniques and variable semiconductor laser gas detection technology are realized respectively to be analyzed and is detected to gas different component, including
The accurate measurement sensor group of inlet suction port, the first four-way valve, gas, moisture measurement module, gas purity measurement module, the two or four
The import of port valve and air outlet adapter, first four-way valve is connected by pipeline with the inlet suction port, second four-way
The outlet of valve is connected by pipeline with the air outlet adapter;The first outlet of first four-way valve passes through pipeline and the gas
The import of the accurate measurement sensor group of body is connected, and the outlet of the accurate measurement sensor group of gas is by pipeline successively with
One check valve is connected with the first import of second four-way valve;The second outlet of first four-way valve passes through pipeline and institute
The import for stating moisture measurement module is connected, the outlet of the moisture measurement module by pipeline successively with the second check valve and institute
The second import for stating the second four-way valve is connected;The third outlet of first four-way valve is surveyed by pipeline and the gas purity
The import of amount module is connected, the outlet of the gas purity measurement module by pipeline successively with third check valve and described the
The third import of two four-way valves is connected.
The present invention is conducive to laser sensor and realizes to H2S gases, O2And H2The detection of O utilizes infrared sensor realization pair
SF6Gas, SO2Gas, CF4Gas and CO gases realize that detection, gas enter instrument internal by inlet suction port, pass through first
Four-way valve is divided into 3 tunnels and realizes that gas detection, the wherein first branch are used for CF4Gas, CO gases, SO2Gas and H2S gas
Body, O2Gas realizes detection, and realizes gas flow control by the first needle-valve and the first electronic flowmeter, and first is unidirectionally controlled
Valve is used for the one-way flow of gas;The second branch realizes the detection of humidity using humidity sensor, and passes through the second needle-valve and the
Two electronic flowmeters realize that gas flow control, the second one-way control valve are used for the one-way flow of gas;Third branch for pair
SF6Gas, CF4Gas purity is detected, and realizes gas flow control by third needle-valve and third electronic flowmeter, the
Three one-way control valves are used for the one-way flow of gas;Final three road gas is connected by the second four-way valve and is discharged by air outlet adapter,
And it is handled by subsequent vent gas treatment recycling module.
Embodiment 2
As shown in Fig. 5, Fig. 2, Fig. 3 and Fig. 4, a kind of integrated gas analyzer based on photoelectric sensing principle, in conjunction with non-spectral red
Outer spectrum absorption techniques and variable semiconductor laser gas detection technology are realized respectively to be analyzed and is detected to gas different component,
Mould is measured including inlet suction port 1, the first four-way valve 2, the accurate measurement sensor group 3 of gas, moisture measurement module 4, gas purity
The import of block 5, the second four-way valve 6 and air outlet adapter 7, first four-way valve 2 is connected by pipeline with the inlet suction port 1
Logical, the outlet of second four-way valve 6 is connected by pipeline with the air outlet adapter 7.
The import phase that the first outlet of first four-way valve 2 passes through the accurate measurement sensor group of pipeline and the gas 3
Connection, the outlet of the accurate measurement sensor group of the gas 3 by pipeline successively with the first check valve 8 and second four-way valve
6 the first import is connected.
The second outlet of first four-way valve 2 is connected by pipeline with the import of the moisture measurement module 4, described
The outlet of moisture measurement module 4 is connected with the second import of the second check valve 9 and second four-way valve 6 successively by pipeline
It is logical.
The third outlet of first four-way valve 2 is connected by pipeline with the import of the gas purity measurement module 5,
The outlet of the gas purity measurement module 5 passes through the pipeline successively third with third check valve 10 and second four-way valve 6
Import is connected.
The accurate measurement sensor group 3 of gas includes the carbon tetrafluoride photoelectric sensor 31 being cascaded, titanium dioxide
Sulphur photoelectric sensor 32, carbon monoxide photoelectric sensor 33 and hydrogen sulfide photoelectric sensor 34.
The moisture measurement module 4 includes humidity gas chamber 41 and the humidity sensor being arranged in the humidity gas chamber 41
42。
The gas purity measurement module 5 includes the sulfur hexafluoride purity photoelectric sensor 51 and tetrafluoride being cascaded
Carbon purity photoelectric sensor 52.
The air outlet adapter 7 has vent gas treatment recycling module 11, the vent gas treatment recycling module 11 by piping connection
Include molecular sieve filter 111, active carbon filter 112 and the gas collection bag 113 being sequentially connected by pipeline.
In the embodiment, air outlet adapter has vent gas treatment recycling module, and vent gas treatment recycling module by piping connection
Include molecular sieve filter, active carbon filter and the gas collection bag being sequentially connected by pipeline, wherein vent gas treatment recycles
Module is made of molecular sieve, acid gas purifying activated carbon is used for the corresponding gas of purified treatment, and tail gas recycle bag is general
Gas collection bag is used for recycling the gas of discharge, and meeting national sulfur hexafluoride by detection after recycling can using standard
Utilization again for gas insulated electric apparatus.
Embodiment 3
As shown in fig. 6, itself the difference from example 2 is that:First four-way valve 2 and the accurate measurement sensor group of the gas
The first needle-valve 12 is provided on pipeline between 3, between the accurate measurement sensor group 3 of the gas and first check valve 8
It is provided with the first electronic flowmeter 13.
The second needle-valve 14 is provided on pipeline between first four-way valve 2 and the moisture measurement module 4, it is described wet
It is provided with the second electronic flowmeter 15 on pipeline between degree measurement module 4 and second check valve 9.
Third needle-valve 16, institute are provided on pipeline between first four-way valve 2 and the gas purity measurement module 5
It states and is provided with third electronic flowmeter 17 between gas purity measurement module 5 and the third check valve 10.
In the embodiment, for the ease of controlling gas flow in each branch, accurately measured with gas in the first four-way valve
It is provided with the first needle-valve on pipeline between sensor group, and is set between the accurate measurement sensor group of gas and the first check valve
Set the first electronic flowmeter;It is provided with the second needle-valve on pipeline between the first four-way valve and moisture measurement module, and wet
It is provided with the second electronic flowmeter on pipeline between degree measurement module and the second check valve;In the first four-way valve and gas purity
It is provided with third needle-valve on pipeline between measurement module, and is provided between gas purity measurement module and third check valve
Third electronic flowmeter.
Embodiment 4
The application method of the integrated gas analyzer based on photoelectric sensing principle is as follows:
A. inlet suction port is connected with the valve of gas insulated electric apparatus to be detected, and opens the first four-way valve and the two or four
Port valve;
B. when needing to decomposition product hydrogen sulfide gas, sulfur dioxide gas, the carbon monoxide inside gas insulated electric apparatus
When gas and carbon tetrafluoride gas are detected, the first needle-valve is opened, and close the second needle-valve and third needle-valve;
C. when need to inside gas insulated electric apparatus sulfur hexafluoride gas and carbon tetrafluoride gas carry out purity detecting when,
Third needle-valve is opened, and closes the first needle-valve and the second needle-valve;
D. when needing to be detected the micro-water content inside gas insulated electric apparatus, the second needle-valve is opened, and close
First needle-valve and third needle-valve;
E. when needing to decomposition product hydrogen sulfide gas, sulfur dioxide gas, the carbon monoxide inside gas insulated electric apparatus
When the gas concentration and sulfur hexafluoride gas of gas and carbon tetrafluoride gas and the purity of carbon tetrafluoride gas are detected,
The first needle-valve and third needle-valve are opened, and closes the second needle-valve;
F. when needing to decomposition product hydrogen sulfide gas, sulfur dioxide gas, the carbon monoxide inside gas insulated electric apparatus
When the gas concentration and micro-water content of gas and carbon tetrafluoride gas are detected, the first needle-valve and the second needle-valve are opened,
And close third needle-valve;
G. when needing to the purity of sulfur hexafluoride gas and carbon tetrafluoride gas inside gas insulated electric apparatus and micro
When water content is detected, the second needle-valve and third needle-valve are opened, and close the first needle-valve.
F. pass through the second four-way valve outlet discharge tail gas pass sequentially through molecular sieve filter and active carbon filter into
Row tail gas filtering finally recycles the tail gas for completing filtering using gas collection bag.
The present invention is conducive to laser sensor and realizes to H2S gases, O2And H2The detection of O utilizes infrared sensor realization pair
SF6,SO2,CF4It realizes and detects with CO gases, gas enters instrument internal by inlet suction port, is divided into 3 tunnels by the first four-way valve
Realize that gas detection, the wherein first branch are used for CF4,CO ,SO2And H2S,O2Gas realizes detection, and passes through the first needle
Valve and the first electronic flowmeter realize that gas flow control, the first one-way control valve are used for the one-way flow of gas;The second branch
The detection of humidity is realized using humidity sensor, and gas flow control is realized by the second needle-valve and the second electronic flowmeter,
Second one-way control valve is used for the one-way flow of gas;Third branch is used for SF6,CF4Gas purity is detected, and is passed through
Third needle-valve and third electronic flowmeter realize that gas flow control, third one-way control valve are used for the one-way flow of gas;Most
Three road gases are connected by the second four-way valve and are discharged by air outlet adapter eventually, and by subsequent vent gas treatment recycling module at
Reason.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical scheme of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (10)
1. a kind of integrated gas analyzer based on photoelectric sensing principle, it is characterised in that:It is composed in conjunction with non-dispersive infrared and absorbs skill
Art and variable semiconductor laser gas detection technology are realized respectively to be analyzed and is detected to gas different component, including air inlet connecting
Head, the first four-way valve, the accurate measurement sensor group of gas, moisture measurement module, gas purity measurement module, the second four-way valve and
The import of air outlet adapter, first four-way valve is connected by pipeline with the inlet suction port, and second four-way valve goes out
Mouth is connected by pipeline with the air outlet adapter;
The first outlet of first four-way valve is connected by pipeline with the import of the accurate measurement sensor group of the gas, institute
State the outlet of the accurate measurement sensor group of gas by pipeline successively with the first of the first check valve and second four-way valve into
Mouth is connected;
The second outlet of first four-way valve is connected by pipeline with the import of the moisture measurement module, and the humidity is surveyed
The outlet of amount module is connected with the second import of the second check valve and second four-way valve successively by pipeline;
The third outlet of first four-way valve is connected by pipeline with the import of the gas purity measurement module, the gas
The outlet of body purity determination module is connected with the third import of third check valve and second four-way valve successively by pipeline.
2. a kind of integrated gas analyzer based on photoelectric sensing principle according to claim 1, it is characterised in that:Institute
State the accurate measurement sensor group of gas include the carbon tetrafluoride photoelectric sensor being cascaded, sulfur dioxide photoelectric sensor,
Carbon monoxide photoelectric sensor and hydrogen sulfide photoelectric sensor.
3. a kind of integrated gas analyzer based on photoelectric sensing principle according to claim 2, it is characterised in that:It is described
Moisture measurement module includes humidity gas chamber and is arranged in the indoor humidity sensor of humidity gas.
4. a kind of integrated gas analyzer based on photoelectric sensing principle according to claim 3, it is characterised in that:It is described
Gas purity measurement module includes the sulfur hexafluoride purity photoelectric sensor being cascaded and carbon tetrafluoride purity photoelectric sensing
Device.
5. a kind of integrated gas analyzer based on photoelectric sensing principle according to claim 4, it is characterised in that:It is described
It includes by pipeline successively phase that air outlet adapter has vent gas treatment recycling module, the vent gas treatment recycling module by piping connection
Molecular sieve filter, active carbon filter and gas collection bag even.
6. a kind of integrated gas analyzer based on photoelectric sensing principle according to claim 5, it is characterised in that:It is described
It is provided with the first needle-valve on pipeline between first four-way valve and the accurate measurement sensor group of the gas, the gas is accurately surveyed
It is provided with the first electronic flowmeter between quantity sensor group and first check valve.
7. a kind of integrated gas analyzer based on photoelectric sensing principle according to claim 6, it is characterised in that:It is described
Be provided with the second needle-valve on pipeline between first four-way valve and the moisture measurement module, the moisture measurement module with it is described
The second electronic flowmeter is provided on pipeline between second check valve.
8. a kind of integrated gas analyzer based on photoelectric sensing principle according to claim 7, it is characterised in that:It is described
Third needle-valve is provided on pipeline between first four-way valve and the gas purity measurement module, the gas purity measures mould
It is provided with third electronic flowmeter between block and the third check valve.
9. a kind of integrated gas analyzer based on photoelectric sensing principle according to claim 8, it is characterised in that:It is described
The application method of integrated gas analyzer based on photoelectric sensing principle is as follows:
A. inlet suction port is connected with the valve of gas insulated electric apparatus to be detected, and opens the first four-way valve and the two or four
Port valve;
B. when needing to decomposition product hydrogen sulfide gas, sulfur dioxide gas, the carbon monoxide inside gas insulated electric apparatus
When gas and carbon tetrafluoride gas are detected, the first needle-valve is opened, and close the second needle-valve and third needle-valve;
C. when need to inside gas insulated electric apparatus sulfur hexafluoride gas and carbon tetrafluoride gas carry out purity detecting when,
Third needle-valve is opened, and closes the first needle-valve and the second needle-valve;
D. when needing to be detected the micro-water content inside gas insulated electric apparatus, the second needle-valve is opened, and close
First needle-valve and third needle-valve;
E. when needing to decomposition product hydrogen sulfide gas, sulfur dioxide gas, the carbon monoxide inside gas insulated electric apparatus
The gas concentration and sulfur hexafluoride gas of gas and carbon tetrafluoride gas and the gas purity of carbon tetrafluoride gas are detected
When, the first needle-valve and third needle-valve are opened, and close the second needle-valve;
F. when needing to decomposition product hydrogen sulfide gas, sulfur dioxide gas, the carbon monoxide inside gas insulated electric apparatus
When the gas concentration and micro-water content of gas and carbon tetrafluoride gas are detected, the first needle-valve and the second needle-valve are opened,
And close third needle-valve;
G. when needing the gas purity to sulfur hexafluoride gas and carbon tetrafluoride gas inside gas insulated electric apparatus, and
When micro-water content is detected, the second needle-valve and third needle-valve are opened, and close the first needle-valve.
Tail gas of the 10.f. by the outlet discharge of the second four-way valve passes sequentially through molecular sieve filter and active carbon filter carries out
Tail gas filtering finally recycles the tail gas for completing filtering using gas collection bag.
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| CN114778772A (en) * | 2022-04-20 | 2022-07-22 | 国网安徽省电力有限公司阜阳供电公司 | Environment-friendly sulfur hexafluoride comprehensive detection device |
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