CN107247032A - A kind of SF6 on-line monitoring alarm device for leakage and its detection method - Google Patents
A kind of SF6 on-line monitoring alarm device for leakage and its detection method Download PDFInfo
- Publication number
- CN107247032A CN107247032A CN201710442439.3A CN201710442439A CN107247032A CN 107247032 A CN107247032 A CN 107247032A CN 201710442439 A CN201710442439 A CN 201710442439A CN 107247032 A CN107247032 A CN 107247032A
- Authority
- CN
- China
- Prior art keywords
- gas
- leakage
- alarm device
- line monitoring
- monitoring alarm
- 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.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 181
- 238000001514 detection method Methods 0.000 title claims abstract description 137
- 239000007789 gas Substances 0.000 claims abstract description 258
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 238000012795 verification Methods 0.000 claims description 70
- 238000004891 communication Methods 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 238000010926 purge Methods 0.000 claims description 20
- 238000009826 distribution Methods 0.000 claims description 19
- 238000012360 testing method Methods 0.000 claims description 17
- 239000003085 diluting agent Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 2
- 235000008434 ginseng Nutrition 0.000 claims 2
- 238000010943 off-gassing Methods 0.000 claims 1
- 230000036541 health Effects 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 2
- 229910018503 SF6 Inorganic materials 0.000 description 157
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 157
- 238000007689 inspection Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012491 analyte Substances 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000686 essence Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 101000856246 Arabidopsis thaliana Cleavage stimulation factor subunit 77 Proteins 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010037423 Pulmonary oedema Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 208000005333 pulmonary edema Diseases 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- QHMQWEPBXSHHLH-UHFFFAOYSA-N sulfur tetrafluoride Chemical compound FS(F)(F)F QHMQWEPBXSHHLH-UHFFFAOYSA-N 0.000 description 1
- OBTWBSRJZRCYQV-UHFFFAOYSA-N sulfuryl difluoride Chemical compound FS(F)(=O)=O OBTWBSRJZRCYQV-UHFFFAOYSA-N 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- LSJNBGSOIVSBBR-UHFFFAOYSA-N thionyl fluoride Chemical compound FS(F)=O LSJNBGSOIVSBBR-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- 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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
-
- 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
-
- 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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N2021/6432—Quenching
Abstract
The invention discloses a kind of SF6 on-line monitoring alarm device for leakage and its detection method, device includes sampling pump, gas detection cell, monitoring host computer, alarm unit and blower fan, the sampling pump is detected to gather detected gas and be sent to gas detection cell, the gas detection cell is to detect the parameter of detected gas and be sent to monitoring host computer, the monitoring host computer judges whether detected gas meets the requirements according to the parameter of detected gas, and control alarm unit alarm while controlling blower fan work to be aerated, effectively prevent influences the generation of phenomenon on field personnel's personal safety caused by SF6 gases are leaked, it ensure that the health of human body of substation operation attendant.Detection method to SF6 on-line monitoring alarm device for leakage by effectively being verified, it is ensured that the operation steady in a long-term of SF6 on-line monitoring alarm device for leakage.
Description
Technical field
The present invention relates to a kind of SF6 on-line monitoring alarm device for leakage and its detection method, belong to SF6 leakage monitoring technologies
Field.
Background technology
SF6 gases are widely used in all kinds of high pressures, extra-high voltage electrical equipment as excellent insulation and arc-extinguishing medium
In, especially with the development of urban distribution network, indoor SF6 gas insulated combined electrical equipments (GIS) transformer station is in urban distribution network
Using more and more.Just because of a large amount of of SF6 gases use, its security receives the extensive concern of people.The new gas of SF6 is one
Colourless, tasteless, nontoxic, non-ignitable gas is planted, density is approximately 5 times of air, suction human body easily causes asphyxia.In equipment
SF6 gases are in the presence of electric arc or high temperature, it may occur that decomposed, and its analyte such as SF4, SOF2, SO2F2, HF, SO2
Deng often containing toxic, if suction human body, dizzy and pulmonary edema can be caused, harm to the human body is very big.Due to being manufactured, being installed
The factors such as difference and material aging etc. quality influence, and it is a universal phenomenon that leakage, which occurs, for SF6 electrical equipments.Work as interior
When SF6 electrical equipments are leaked in use, the SF6 gases and its analyte leaked out can be toward indoor low layer space
Accumulation, causes ischaemia and with poison, the health of human body of the staff to getting in constitutes serious danger.
SF6 gases on-line monitoring alarm device for leakage (hereinafter referred to as SF6 warning devices) is basis《Electric industry safety code》
Related request, indoors SF6 electrical equipments workplace, one kind of installation SF6 G＆O contents in detection air in real time
Intelligent on-line monitoring system, be ensure field personnel's personal safety critical facility, when SF6 gas contents in environment
Exceeded or anoxic, can be alarmed in real time, be aerated while automatically turning on ventilation blower, to ensure to get in staff's
Health of human body.Because SF6 warning devices will continuously be run for a long time, monitoring in real time, its reliability will directly influence operation maintenance
The personal safety of personnel, it is therefore necessary to study SF6 warning device reliabilities.
The content of the invention
In view of the shortcomings of the prior art, the present invention proposes a kind of SF6 on-line monitoring alarm device for leakage and its detection side
Method, it can not only improve the monitoring accuracy to SF6 gases, and monitoring error can be detected, ensure that SF6 is let out
Leak the reliability of online monitoring alarm device.
The present invention solves its technical problem and adopted the technical scheme that：
A kind of SF6 on-line monitoring alarm device for leakage that the present invention is provided, it is characterized in that, including the detection of sampling pump, gas
Unit, monitoring host computer, alarm unit and blower fan, the sampling pump is to gather detected gas and be sent to gas detection cell
Detected, the gas detection cell is to detect the parameter of detected gas and be sent to monitoring host computer, the monitoring master
Machine judges whether detected gas meets the requirements according to the parameter of detected gas, and controls alarm unit to carry out the same time control of alarm
Blower fan work processed is aerated.
Preferably, the gas detection cell includes SF6 sensors and oxygen sensor, and the monitoring host computer is according to tested
Whether the content for surveying SF6 gases in the parameter of gas is exceeded and whether content of oxygen lacks to control whether alarm unit enters
Row alarm controls whether blower fan is aerated work simultaneously.
Preferably, the SF6 sensors use the SF6 sensors of non-spectral formula infrared absorption Cleaning Principle, the oxygen
Sensor is using electrochemical principle or the oxygen sensor of Fluorescence Quenching Principle.
A kind of detection method for SF6 on-line monitoring alarm device for leakage that the present invention is provided, is leaked using SF6 and monitored on-line
Warning device check system is detected to a kind of monitoring error of SF6 on-line monitoring alarm device for leakage of the present invention
Ensure the operational reliability of SF6 on-line monitoring alarm device for leakage, it is characterized in that, including procedure below：
1) standard detected gas is conveyed to SF6 on-line monitoring alarm device for leakage and SF6 fine measuring instruments；
2) parameter of detected gas is detected using SF6 fine measuring instruments and detection data is sent to master control set；
3) parameter of detected gas is detected using SF6 on-line monitoring alarm device for leakage and detection data is sent to master
Control device；
4) average value and SF6 accurate measurement of the master control set to SF6 on-line monitoring alarm device for leakage repeated detection results
The average value of instrument repeated detection result is contrasted, and determines that SF6 leaks online monitoring alarm by calculating both errors
The monitoring error of device.
Preferably, the standard detected gas includes the SF6 calibrating gas or oxygen calibrating gas of known associated arguments.
Preferably, the SF6 on-line monitoring alarm device for leakage check system includes detected gas feeding mechanism, verification
Detection means and master control set, the detected gas feeding mechanism is to for SF6 on-line monitoring alarm device for leakage and verification
Detection means provides identical detected gas, and the verification detection means is to detect the parameter of detected gas and be sent to
Master control set, the master control set obtains SF6 on-line monitoring alarm device for leakage respectively and verification detection means detection is detected
The parameter of gas and the testing result to SF6 on-line monitoring alarm device for leakage and the testing result progress pair for verifying detection means
Than determining the monitoring error of SF6 on-line monitoring alarm device for leakage by calculating both errors.
Preferably, the detected gas feeding mechanism include standard source of the gas steel cylinder, first flowmeter, second flowmeter and
Flow controller, the standard source of the gas steel cylinder is let out by purging joint with SF6 respectively by first flowmeter and second flowmeter
Leakage online monitoring alarm device is connected with the gas access of verification detection means；Described first flowmeter and second flow score
It is not connected with flow meter controller.
Preferably, the verification detection means includes being provided with the SF6 fine measuring instruments of communication interface, the SF6 essences
Close measuring instrument is connected by communication interface with master control set, and the off-line type SF6 fine measuring instruments are revealed using chilled-mirror type SF6
Point instrument；The master control set includes CPU and communication unit, and the CPU is supplied with detected gas and filled respectively by communication unit
Put, SF6 on-line monitoring alarm device for leakage and verification detection means are connected.
The detection method for another SF6 on-line monitoring alarm device for leakage that the present invention is provided, utilizes the online prison of SF6 leakages
Measuring alarming device check system is detected to a kind of monitoring error of SF6 on-line monitoring alarm device for leakage of the present invention
To ensure the operational reliability of SF6 on-line monitoring alarm device for leakage, it is characterized in that, including procedure below：
1) detected gas is prepared, the detected gas is by calibrating gas and diluent gas under master control set control
The mixed gas being mixed according to a certain percentage；
2) the theoretical parameter of the detected gas prepared is calculated；
3) detected gas of preparation is conveyed to the verification that SF6 fine measuring instruments carry out repeated detection detected gas
Parameter；
4) master control set seeks the verification parameter of repeated detection detected gas verification parameter average value, and verification parameter is put down
Average and theoretical parameter are contrasted, and calculate the error of verification parameter average value and theoretical parameter, if verification parameter is averaged
Value and the error of theoretical parameter then carry out next step in allowed band, otherwise return to step 1) to prepare detected gas again straight
Untill the error of verification parameter average value and theoretical parameter is in allowed band；
5) detected gas is conveyed to the prison that SF6 on-line monitoring alarm device for leakage carries out repeated detection detected gas
Survey parameter；
6) master control set seeks the monitoring parameter of repeated detection detected gas verification parameter average value, and many verification parameters are put down
Average and monitoring parameter are contrasted, and calculate both errors, and the prison of SF6 on-line monitoring alarm device for leakage is determined with this
Survey error.
Preferably, the calibrating gas includes the SF6 calibrating gas or oxygen calibrating gas of known associated arguments.
Preferably, the SF6 on-line monitoring alarm device for leakage check system includes detected gas feeding mechanism, verification
Detection means and master control set, the detected gas feeding mechanism is to for SF6 on-line monitoring alarm device for leakage and verification
Detection means provides identical detected gas, and the verification detection means is to detect the parameter of detected gas and be sent to
Master control set, the master control set obtains SF6 on-line monitoring alarm device for leakage respectively and verification detection means detection is detected
The parameter of gas and the testing result to SF6 on-line monitoring alarm device for leakage and the testing result progress pair for verifying detection means
Than determining the monitoring error of SF6 on-line monitoring alarm device for leakage by calculating both errors；
The detected gas feeding mechanism include gas steel cylinder, pressure maintaining valve, gas flowmeter, diluent gas flow gauge,
Minipump, purging joint and gas provisioning controller, the gas steel cylinder are connected by pressure maintaining valve with gas flowmeter, institute
State diluent gas flow gauge to connect with minipump, described gas flowmeter and minipump is matched somebody with somebody by three-way pipe access
Feed channel, described purging joint one end is connected by snap joint with gas distribution pipeline, and the other end and SF6 for purging joint are leaked
Line monitoring alarm or the gas access connection for verifying detection means；It is described gas flowmeter, diluent gas flow gauge, micro-
Type vavuum pump and purging joint are connected with gas provisioning controller respectively；
The verification detection means includes being provided with the SF6 fine measuring instruments of communication interface, the SF6 precision measuring instruments
Device is connected by communication interface with master control set, and the off-line type SF6 fine measuring instruments use chilled-mirror type SF6 dew point hygrometers；
The master control set includes CPU and communication unit, and the CPU is supplied with detected gas respectively by communication unit
Device, SF6 on-line monitoring alarm device for leakage and verification detection means connection.
Beneficial effects of the present invention are as follows：
The SF6 on-line monitoring alarm device for leakage of the present invention gathers detected gas by sampling pump and is sent to gas and examines
Survey unit to be detected, the parameter of detected gas is sent to monitoring host computer by gas detection cell, and monitoring host computer is according to tested
The parameter for surveying gas judges whether detected gas meets the requirements, and controls alarm unit alarm while controlling blower fan work
It is aerated, effectively prevent influences the generation of phenomenon on field personnel's personal safety caused by SF6 gases are leaked, it is ensured that
The health of human body of substation operation attendant.
The present invention each provides online using the detected gas progress SF6 leakages of single standard gas and mixing distribution
The method of calibration of monitoring alarm；Being verified not only method using single standard gas, simply, Check-Out Time is short, and not
There is distribution error, be particularly suitable for the accurate detection of quantitative SF6 on-line monitoring alarm device for leakage；Entered using mixing distribution gas
Row verification can carry out various concentrations point detection to SF6 on-line monitoring alarm device for leakage, and be particularly suitable for use in SF6 qualitative to diffusion type
On-line monitoring alarm device for leakage carries out alarm trends inspection.The present invention leaks online by different detected gas to SF6
Monitoring alarm carries out method of calibration, for the alarm error (qualitative) and detection error (quantitative) to SF6 G＆Os
Detected, realize the quick and precisely verification to quantitative SF6 on-line monitoring alarm device for leakage and the online prison of qualitative SF6 leakages
The trend verification of the wide concentration of measuring alarming device.
The SF6 on-line monitoring alarm device for leakage of the present invention improves the monitoring accuracy to SF6 gases, and passes through a variety of inspections
Survey method is detected to monitoring error, it is ensured that the reliability of SF6 on-line monitoring alarm device for leakage.
Brief description of the drawings
Fig. 1 is SF6 on-line monitoring alarm device for leakage structure charts of the invention；
Fig. 2 is a kind of method flow diagram of detection method of the present invention；
Fig. 3 is the check system structure chart of SF6 on-line monitoring alarm device for leakage of the present invention；
Fig. 4 is a kind of detected gas feeding mechanism structure chart of the invention；
Fig. 5 is the method flow diagram of another detection method of the present invention；
Fig. 6 is another detected gas feeding mechanism structure chart of the invention.
Embodiment
For the technical characterstic for illustrating this programme can be understood, below by embodiment, and its accompanying drawing is combined, to this hair
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used for realizing the different knots of the present invention
Structure.In order to simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relation between various embodiments are discussed and/or set.It should be noted that part illustrated in the accompanying drawings is not necessarily to scale
Draw.Present invention omits the description to known assemblies and treatment technology and process to avoid being unnecessarily limiting the present invention.
As shown in figure 1, a kind of SF6 on-line monitoring alarm device for leakage of the present invention, it includes sampling pump, gas detection list
Member, monitoring host computer, alarm unit and blower fan, the sampling pump enter to gather detected gas and be sent to gas detection cell
Row detection, the gas detection cell is to detect the parameter of detected gas and be sent to monitoring host computer, the monitoring host computer
Judge whether detected gas meets the requirements according to the parameter of detected gas, and control alarm unit carry out alarm simultaneously control
Blower fan work is aerated.Gather detected gas by sampling pump and be sent to gas detection cell and detected, gas inspection
Survey unit and the parameter of detected gas is sent to monitoring host computer, monitoring host computer judges to be detected according to the parameter of detected gas
Whether gas meets the requirements, and control alarm unit carry out alarm and meanwhile control blower fan work be aerated, effectively prevent because
The leakage of SF6 gases causes to influence field personnel's personal safety the generation of phenomenon, it is ensured that substation operation attendant
Health of human body.
In order to monitor the content of SF6 G＆Os, the gas detection cell includes SF6 sensors and oxygen is passed
Whether sensor, the monitoring host computer is exceeded and content of oxygen is according to the content of SF6 gases in the parameter of detected gas
It is no to lack to control alarm unit whether to carry out alarming while controlling whether blower fan is aerated work.
In order to quantitatively be detected to sulfur hexafluoride gas in surrounding air and oxygen content, the SF6 sensors are used
The SF6 sensors of non-spectral formula infrared absorption Cleaning Principle, the oxygen sensor is former using electrochemical principle or fluorescent quenching
The oxygen sensor of reason.
As shown in Fig. 2 a kind of detection method of SF6 on-line monitoring alarm device for leakage of the present invention, is existed using SF6 leakages
Line monitoring alarm check system is detected to the monitoring error of SF6 on-line monitoring alarm device for leakage of the present invention
To ensure the operational reliability of SF6 on-line monitoring alarm device for leakage, the detection method includes procedure below：
1) standard detected gas is conveyed to SF6 on-line monitoring alarm device for leakage and SF6 fine measuring instruments；
2) parameter of detected gas is detected using SF6 fine measuring instruments and detection data is sent to master control set；
3) parameter of detected gas is detected using SF6 on-line monitoring alarm device for leakage and detection data is sent to master
Control device；
4) repeated detection result average value and SF6 accurate measurement of the master control set to SF6 on-line monitoring alarm device for leakage
The repeated detection result average value of instrument is contrasted, and determines that SF6 leaks online monitoring alarm by calculating both errors
The monitoring error of device.
The detection method carries out school using the detected gas of single standard gas to SF6 on-line monitoring alarm device for leakage
Test, not only method is simple, and Check-Out Time is short, and in the absence of distribution error, be particularly suitable for quantitative SF6 leakages online monitoring alarm
The accurate detection of device.
Preferably, including known associated arguments, (composition, concentration and uncertainty are known to the standard detected gas
) SF6 calibrating gas or oxygen calibrating gas.
As shown in figure 3, the SF6 on-line monitoring alarm device for leakage check system include detected gas feeding mechanism,
Verify detection means and master control set, the detected gas feeding mechanism to for SF6 on-line monitoring alarm device for leakage and
Verify detection means and identical detected gas is provided, the verification detection means is concurrent to the parameter for detecting detected gas
Master control set is given, the master control set obtains SF6 on-line monitoring alarm device for leakage and verification detection means detection quilt respectively
Detect the parameter of gas and the testing result of the testing result to SF6 on-line monitoring alarm device for leakage and verification detection means is entered
Row contrast, the monitoring error of SF6 on-line monitoring alarm device for leakage is determined by calculating both errors.
As shown in figure 4, the detected gas feeding mechanism includes standard source of the gas steel cylinder, first flowmeter, second flow
Meter and flow controller, the standard source of the gas steel cylinder by first flowmeter and second flowmeter respectively by purge joint with
SF6 on-line monitoring alarm device for leakage is connected with the gas access of verification detection means；Described first flowmeter and second
Gauge is connected with flow meter controller respectively.Tested using single standard gas, method is simple, and Check-Out Time is short, does not deposit
In distribution error, it is particularly suitable for the accurate detection of quantitative SF6 on-line monitoring alarm device for leakage.In detected gas feeding mechanism
Purging joint is devised between SF6 on-line monitoring alarm device for leakage or verification detection means and joint is being purged simultaneously
Carry out encapsulation process, it is therefore prevented that dilution of the surrounding air to sample gas concentration, it is ensured that the balance of detected gas sheds.
Preferably, the verification detection means includes being provided with the SF6 fine measuring instruments of communication interface, the SF6 essences
Close measuring instrument is connected by communication interface with master control set, and the off-line type SF6 fine measuring instruments are revealed using chilled-mirror type SF6
Point instrument, chilled-mirror type SF6 dew point hygrometers are matured product, and its measurement accuracy is higher than SF6 on-line monitoring alarm device for leakage.The master control
Device includes CPU and communication unit, and the CPU leaks online with detected gas feeding mechanism, SF6 respectively by communication unit
Monitoring alarm and verification detection means connection.
As shown in figure 5, the detection method of another SF6 on-line monitoring alarm device for leakage of the present invention, is leaked using SF6
Online monitoring alarm device check system enters to a kind of monitoring error of SF6 on-line monitoring alarm device for leakage of the present invention
Go detection to ensure the operational reliability of SF6 on-line monitoring alarm device for leakage, the detection method includes procedure below：
1) detected gas is prepared, the detected gas is by calibrating gas and diluent gas under master control set control
The mixed gas being mixed according to a certain percentage；
2) the theoretical parameter of the detected gas prepared is calculated；
3) detected gas of preparation is conveyed to the verification that SF6 fine measuring instruments carry out repeated detection detected gas
Parameter；
4) master control set seeks the verification parameter of repeated detection detected gas verification parameter average value, and verification parameter is put down
Average and theoretical parameter are contrasted, and calculate the error of verification parameter average value and theoretical parameter, if verification parameter is averaged
Value and the error of theoretical parameter then carry out next step in allowed band, otherwise return to step 1) to prepare detected gas again straight
Untill the error of verification parameter average value and theoretical parameter is in allowed band；
5) detected gas is conveyed to the prison that SF6 on-line monitoring alarm device for leakage carries out repeated detection detected gas
Survey parameter；
6) master control set seeks the monitoring parameter of repeated detection detected gas verification parameter average value, and verification parameter is put down
Average and monitoring parameter average value are contrasted, and calculate both errors, and SF6 leakage online monitoring alarm dresses are determined with this
The monitoring error put.
The detection method is verified using the detected gas of mixing distribution to SF6 on-line monitoring alarm device for leakage,
Various concentrations point detection can be carried out to SF6 on-line monitoring alarm device for leakage by carrying out verification using mixing distribution gas, especially be fitted
For carrying out alarm trends inspection to the qualitative SF6 on-line monitoring alarm device for leakage of diffusion type.
Preferably, the calibrating gas includes the SF6 calibrating gas or oxygen calibrating gas of known associated arguments.Mixed
When closing distribution, the diluent gas of SF6 gases uses air, and the diluent gas of oxygen uses nitrogen.
As shown in figure 3, the SF6 on-line monitoring alarm device for leakage check system include detected gas feeding mechanism,
Verify detection means and master control set, the detected gas feeding mechanism to for SF6 on-line monitoring alarm device for leakage and
Verify detection means and identical detected gas is provided, the verification detection means is concurrent to the parameter for detecting detected gas
Master control set is given, the master control set obtains SF6 on-line monitoring alarm device for leakage and verification detection means detection quilt respectively
Detect the parameter of gas and the testing result of the testing result to SF6 on-line monitoring alarm device for leakage and verification detection means is entered
Row contrast, the monitoring error of SF6 on-line monitoring alarm device for leakage is determined by calculating both errors.
As shown in fig. 6, the detected gas feeding mechanism includes gas steel cylinder, pressure maintaining valve, gas flowmeter, carrier gas
Flowmeter body, minipump, purging joint and gas provisioning controller, the gas steel cylinder pass through pressure maintaining valve and gas flow
Meter connection, the diluent gas flow gauge is connected with minipump, and described gas flowmeter and minipump pass through three
Siphunculus accesses gas distribution pipeline, and described purging joint one end is connected by snap joint with gas distribution pipeline, purges the other end of joint
Connected with SF6 on-line monitoring alarm device for leakage or the gas access for verifying detection means；Described gas flowmeter, carrier gas
Flowmeter body, minipump and purging joint are connected with gas provisioning controller respectively.Detected gas using SF6 gases or
Oxygen is diluted, and the diluent gas for carrying out SF6 gases during mixing distribution generally uses air, and the diluent gas of oxygen uses nitrogen
Gas.Using mixing distribution can configure out a series of aimed concns sample gas (using according to a certain percentage by calibrating gas and
That diluent gas is mixed and composition, concentration and uncertainty are known mixed gas), warning device is carried out different
Concentration point detects that the SF6 on-line monitoring alarm device for leakage qualitative to diffusion type that is particularly suitable for use in carries out alarm trends inspection.In quilt
Detection gas supply device and SF6 on-line monitoring alarm device for leakage or verification detection means between devise purging joint and
Purging joint simultaneously carries out encapsulation process, it is therefore prevented that dilution of the surrounding air to sample gas concentration, it is ensured that be detected gas
The balance of body sheds.
The verification detection means includes being provided with the SF6 fine measuring instruments of communication interface, the SF6 precision measuring instruments
Device is connected by communication interface with master control set, and the off-line type SF6 fine measuring instruments use chilled-mirror type SF6 dew point hygrometers, cold
Mirror SF6 dew point hygrometers are matured product, and its measurement accuracy is higher than SF6 on-line monitoring alarm device for leakage.
The master control set includes CPU and communication unit, and the CPU is supplied with detected gas respectively by communication unit
Device, SF6 on-line monitoring alarm device for leakage and verification detection means connection.
The detected gas of the present invention can be carried out using single standard gas or by single standard gas and other gases
Mixing, simple using the method for inspection of single standard gas, Check-Out Time is short, in the absence of distribution error, is particularly suitable for quantitative SF6
The accurate detection of on-line monitoring alarm device for leakage.A series of sample gas of aimed concns is can configure out using mixing distribution,
Various concentrations point detection is carried out to warning device, the SF6 on-line monitoring alarm device for leakage qualitative to diffusion type that is particularly suitable for use in enters
Row alarm trends are examined.Detected gas feeding mechanism and SF6 on-line monitoring alarm device for leakage or verification detection means it
Between devise purging joint and in purging joint and carry out encapsulation process, it is therefore prevented that surrounding air is to sample gas concentration
Dilution, it is ensured that the balance of detected gas sheds.
In detection process is carried out to SF6 on-line monitoring alarm device for leakage, provided by detected gas feeding mechanism
The detected gas of known associated arguments, carries out dual confirmation, most using the parameter for verifying detection means detection detected gas
Contrasted and counted by the testing result of the testing result to SF6 on-line monitoring alarm device for leakage and verification detection means afterwards
Calculate both errors to determine the monitoring error of SF6 on-line monitoring alarm device for leakage, so as to leak online monitoring alarm to SF6
Device is verified, it is ensured that the operation steady in a long-term of SF6 on-line monitoring alarm device for leakage.
Simply the preferred embodiment of the present invention described above, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also regarded as this hair
Bright protection domain.
Claims (10)
1. a kind of SF6 on-line monitoring alarm device for leakage, it is characterized in that, including sampling pump, gas detection cell, monitoring host computer,
Alarm unit and blower fan, the sampling pump are detected to gather detected gas and be sent to gas detection cell, described
Gas detection cell is to detect the parameter of detected gas and be sent to monitoring host computer, and the monitoring host computer is according to detected gas
The parameter of body judges whether detected gas meets the requirements, and controls alarm unit alarm while controlling blower fan work to carry out
Ventilation.
2. a kind of SF6 on-line monitoring alarm device for leakage as claimed in claim 1, it is characterized in that, the gas detection cell
Including SF6 sensors and oxygen sensor, the monitoring host computer according to the contents of SF6 gases in the parameter of detected gas whether
Whether whether exceeded and oxygen content lack to control alarm unit to carry out alarming while controlling whether blower fan is aerated
Work.
3. a kind of SF6 on-line monitoring alarm device for leakage as claimed in claim 2, it is characterized in that, the SF6 sensors are used
The SF6 sensors of non-spectral formula infrared absorption Cleaning Principle, the oxygen sensor is former using electrochemical principle or fluorescent quenching
The oxygen sensor of reason.
4. a kind of detection method of SF6 on-line monitoring alarm device for leakage, system is verified using SF6 on-line monitoring alarm device for leakage
Unite and a kind of monitoring error of SF6 on-line monitoring alarm device for leakage described in claims 1 to 3 any one is detected to come
Ensure the operational reliability of SF6 on-line monitoring alarm device for leakage, it is characterized in that, including procedure below：
1) standard detected gas is conveyed to SF6 on-line monitoring alarm device for leakage and SF6 fine measuring instruments；
2) parameter of detected gas is detected using SF6 fine measuring instruments and detection data is sent to master control set；
3) parameter of detected gas is detected using SF6 on-line monitoring alarm device for leakage and detection data is sent to master control dress
Put；
4) average value and SF6 fine measuring instrument of the master control set to SF6 on-line monitoring alarm device for leakage repeated detection results
The average value of repeated detection result is contrasted, and SF6 on-line monitoring alarm device for leakage is determined by calculating both errors
Monitoring error.
5. a kind of detection method of SF6 on-line monitoring alarm device for leakage as claimed in claim 4, it is characterized in that, the mark
Quasi- detected gas includes the SF6 calibrating gas or oxygen calibrating gas of known associated arguments.
6. a kind of detection method of SF6 on-line monitoring alarm device for leakage as described in claim 4 or 5, it is characterized in that, it is described
SF6 on-line monitoring alarm device for leakage check system includes detected gas feeding mechanism, verification detection means and master control set,
The detected gas feeding mechanism is to be that SF6 on-line monitoring alarm device for leakage and verification detection means provide identical quilt
Gas is detected, the verification detection means is to detect the parameter of detected gas and be sent to master control set, the master control dress
Put the parameter for obtaining SF6 on-line monitoring alarm device for leakage and verification detection means detection detected gas respectively and SF6 is let out
The testing result of the testing result and verification detection means of leaking online monitoring alarm device is contrasted, by calculating both mistakes
Difference determines the monitoring error of SF6 on-line monitoring alarm device for leakage.
7. a kind of detection method of SF6 on-line monitoring alarm device for leakage as claimed in claim 6, it is characterized in that, the quilt
Detect that gas supply device includes standard source of the gas steel cylinder, first flowmeter, second flowmeter and flow controller, the Standard Gases
Source steel cylinder is by first flowmeter and second flowmeter respectively by purging joint and SF6 on-line monitoring alarm device for leakage and school
Test the gas access connection of detection means；Described first flowmeter and second flowmeter are connected with flow meter controller respectively.
8. a kind of detection method of SF6 on-line monitoring alarm device for leakage as claimed in claim 6, it is characterized in that, the school
Testing detection means includes being provided with the SF6 fine measuring instruments of communication interface, and the SF6 fine measuring instruments pass through communication interface
It is connected with master control set, the off-line type SF6 fine measuring instruments use chilled-mirror type SF6 dew point hygrometers；The master control set includes
CPU and communication unit, the CPU leak online monitoring alarm with detected gas feeding mechanism, SF6 respectively by communication unit
Device and verification detection means connection.
9. a kind of detection method of SF6 on-line monitoring alarm device for leakage, system is verified using SF6 on-line monitoring alarm device for leakage
Unite and a kind of monitoring error of SF6 on-line monitoring alarm device for leakage described in claims 1 to 3 any one is detected to come
Ensure the operational reliability of SF6 on-line monitoring alarm device for leakage, it is characterized in that, including procedure below：
1) prepare detected gas, the detected gas be under master control set control by calibrating gas and diluent gas according to
The mixed gas that certain proportion is mixed；
2) the theoretical parameter of the detected gas prepared is calculated；
3) detected gas of preparation is conveyed to the verification ginseng that SF6 fine measuring instruments carry out repeated detection detected gas
Amount；
4) master control set seeks the verification parameter of repeated detection detected gas verification parameter average value, to verification parameter average value
Contrasted with theoretical parameter, and calculate the error of verification parameter average value and theoretical parameter, if verification parameter average value and
The error of theoretical parameter then carries out next step in allowed band, otherwise return to step 1) detected gas is prepared again until school
Untill the error of parameter average value and theoretical parameter is tested in allowed band；
5) detected gas is conveyed to the monitoring ginseng that SF6 on-line monitoring alarm device for leakage carries out repeated detection detected gas
Amount；
6) master control set seeks monitoring parameter average value to the monitoring parameter of repeated detection detected gas, to verification parameter average value
Contrasted with monitoring parameter average value, and calculate both errors, SF6 on-line monitoring alarm device for leakage is determined with this
Monitor error.
10. a kind of detection method of SF6 on-line monitoring alarm device for leakage as claimed in claim 9, it is characterized in that, it is described
SF6 on-line monitoring alarm device for leakage check system includes detected gas feeding mechanism, verification detection means and master control set,
The detected gas feeding mechanism is to be that SF6 on-line monitoring alarm device for leakage and verification detection means provide identical quilt
Gas is detected, the verification detection means is to detect the parameter of detected gas and be sent to master control set, the master control dress
Put the parameter for obtaining SF6 on-line monitoring alarm device for leakage and verification detection means detection detected gas respectively and SF6 is let out
The testing result of the testing result and verification detection means of leaking online monitoring alarm device is contrasted, by calculating both mistakes
Difference determines the monitoring error of SF6 on-line monitoring alarm device for leakage；
The detected gas feeding mechanism includes gas steel cylinder, pressure maintaining valve, gas flowmeter, diluent gas flow gauge, miniature
Vavuum pump, purging joint and gas provisioning controller, the gas steel cylinder is connected by pressure maintaining valve with gas flowmeter, described dilute
Outgassing flowmeter body is connected with minipump, and described gas flowmeter and minipump access gas-distribution pipe by three-way pipe
Road, described purging joint one end is connected by snap joint with gas distribution pipeline, purges the other end and the online prison of SF6 leakages of joint
Measuring alarming device or the gas access connection for verifying detection means；It is described gas flowmeter, diluent gas flow gauge, miniature true
Empty pump and purging joint are connected with gas provisioning controller respectively；
The verification detection means includes being provided with the SF6 fine measuring instruments of communication interface, and the SF6 fine measuring instruments lead to
Cross communication interface to be connected with master control set, the off-line type SF6 fine measuring instruments use chilled-mirror type SF6 dew point hygrometers；
The master control set includes CPU and communication unit, and the CPU is supplied with detected gas and filled respectively by communication unit
Put, SF6 on-line monitoring alarm device for leakage and verification detection means are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442439.3A CN107247032A (en) | 2017-06-13 | 2017-06-13 | A kind of SF6 on-line monitoring alarm device for leakage and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442439.3A CN107247032A (en) | 2017-06-13 | 2017-06-13 | A kind of SF6 on-line monitoring alarm device for leakage and its detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107247032A true CN107247032A (en) | 2017-10-13 |
Family
ID=60019227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710442439.3A Pending CN107247032A (en) | 2017-06-13 | 2017-06-13 | A kind of SF6 on-line monitoring alarm device for leakage and its detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107247032A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109276976A (en) * | 2018-12-05 | 2019-01-29 | 国家电网有限公司 | A kind of recyclable device and method of sulfur hexafluoride and nitrogen mixed gas |
| CN110160710A (en) * | 2019-05-09 | 2019-08-23 | 国网山东省电力公司枣庄供电公司 | A kind of combined electrical apparatus air leakage point quickly searches device |
| CN111473921A (en) * | 2020-04-16 | 2020-07-31 | 国网湖南省电力有限公司 | Detection system of sulfur hexafluoride leakage alarm device |
| CN112324745A (en) * | 2019-09-24 | 2021-02-05 | 杨丽璇 | Portable hydraulic system leakage signal acquisition device and acquisition method thereof |
| CN113628422A (en) * | 2021-08-04 | 2021-11-09 | 山西辉能科技有限公司 | Online gas leakage alarm device and system thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943691A (en) * | 2010-04-14 | 2011-01-12 | 广西电网公司电力科学研究院 | Device and method for checking SF6 gas leakage monitoring and alarming apparatuses |
| CN102944645A (en) * | 2012-10-26 | 2013-02-27 | 中国电力科学研究院 | SF6 online monitoring apparatus accuracy detection system and method thereof |
| CN204758243U (en) * | 2015-06-16 | 2015-11-11 | 常州集贤科技有限公司 | Gaseous dew point of SF6 leaks tester |
| CN106226474A (en) * | 2015-08-05 | 2016-12-14 | 杭州得正电气有限公司 | Sf6 online monitoring alarm device |
-
2017
- 2017-06-13 CN CN201710442439.3A patent/CN107247032A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943691A (en) * | 2010-04-14 | 2011-01-12 | 广西电网公司电力科学研究院 | Device and method for checking SF6 gas leakage monitoring and alarming apparatuses |
| CN102944645A (en) * | 2012-10-26 | 2013-02-27 | 中国电力科学研究院 | SF6 online monitoring apparatus accuracy detection system and method thereof |
| CN204758243U (en) * | 2015-06-16 | 2015-11-11 | 常州集贤科技有限公司 | Gaseous dew point of SF6 leaks tester |
| CN106226474A (en) * | 2015-08-05 | 2016-12-14 | 杭州得正电气有限公司 | Sf6 online monitoring alarm device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109276976A (en) * | 2018-12-05 | 2019-01-29 | 国家电网有限公司 | A kind of recyclable device and method of sulfur hexafluoride and nitrogen mixed gas |
| CN109276976B (en) * | 2018-12-05 | 2023-07-04 | 国家电网有限公司 | Recovery device and method for sulfur hexafluoride and nitrogen mixed gas |
| CN110160710A (en) * | 2019-05-09 | 2019-08-23 | 国网山东省电力公司枣庄供电公司 | A kind of combined electrical apparatus air leakage point quickly searches device |
| CN112324745A (en) * | 2019-09-24 | 2021-02-05 | 杨丽璇 | Portable hydraulic system leakage signal acquisition device and acquisition method thereof |
| CN112324745B (en) * | 2019-09-24 | 2022-06-10 | 杨丽璇 | Portable hydraulic system leakage signal acquisition device and acquisition method thereof |
| CN111473921A (en) * | 2020-04-16 | 2020-07-31 | 国网湖南省电力有限公司 | Detection system of sulfur hexafluoride leakage alarm device |
| CN113628422A (en) * | 2021-08-04 | 2021-11-09 | 山西辉能科技有限公司 | Online gas leakage alarm device and system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107247032A (en) | A kind of SF6 on-line monitoring alarm device for leakage and its detection method | |
| CN203606084U (en) | On-site fast checking system of sulfur hexafluoride gas leakage monitoring device | |
| CN104568323B (en) | A kind of SF6Gas leaks online monitoring alarm system | |
| CN106706487B (en) | Remote full-flow calibration system for flue gas and ambient air on-line monitoring equipment | |
| US20110197649A1 (en) | Self-calibrating gas sensor | |
| CN106645531B (en) | A kind of modification method of Gases Dissolved in Transformer Oil detection data | |
| CN107389816A (en) | Gases Dissolved in Transformer Oil on-Line Monitor Device detecting system self-checking device | |
| CN105223286B (en) | The preparation of characteristic of transformer gas standard oil sample and evaluation method | |
| CN108680711A (en) | The calibrating apparatus and assay calibration method of alcohol content of exhalation gas detector | |
| CN107024377A (en) | Total hydrocarbon on-line dilution monitoring device in waste gas | |
| CN104865354A (en) | Formaldehyde gas detector verification device, system and method | |
| CN203241404U (en) | Automatic multi-parameter chemical reagent filling device of water quality online analyzer | |
| CN110307936A (en) | SF6Gas leaks on-line monitoring system calibration equipment and method of calibration | |
| CN104330535A (en) | Simple humidity sensor checking device | |
| CN202693564U (en) | Comprehensive sulfur hexafluoride gas detection device | |
| CN107064281A (en) | Total hydrocarbon on-line dilution monitoring method in waste gas | |
| CN107179159A (en) | The check system and method for a kind of SF6 on-line monitoring alarm device for leakage | |
| CN108088883A (en) | For checking the detection device of gas induction element | |
| WO2023093456A1 (en) | Method for testing and evaluating sealing performance of important residence zone of nuclear power station | |
| CN106093222A (en) | Chromatographic detection apparatus stratification appraisal procedure in a kind of electrical network system | |
| CN207502451U (en) | A kind of multi-channel type gas analyzer | |
| WO2017060072A1 (en) | Detecting test gas fluctuations during sniffer leak searching | |
| CN104502542A (en) | Field inspection device for gas monitoring alarm | |
| CN208704984U (en) | A kind of sulfur hexafluoride leak detector calibration system | |
| CN207096084U (en) | A kind of device of on-line determination the escaping of ammonia in situ |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171013 |
|
| RJ01 | Rejection of invention patent application after publication |