CN108956872A - A kind of couple of SF6The method and system of gas componant on-Line Monitor Device calibration - Google Patents
A kind of couple of SF6The method and system of gas componant on-Line Monitor Device calibration Download PDFInfo
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- CN108956872A CN108956872A CN201810642498.XA CN201810642498A CN108956872A CN 108956872 A CN108956872 A CN 108956872A CN 201810642498 A CN201810642498 A CN 201810642498A CN 108956872 A CN108956872 A CN 108956872A
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- G01N33/0006—Calibrating gas analysers
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Abstract
The invention discloses a kind of couple of SF6The method and system that gas componant on-Line Monitor Device is calibrated, which comprises use high-purity SF6Gas dilutes multiple groups calibrating gas according to preset rules to preset concentration respectively, obtains multiple groups sample gas；The calibrating gas includes SO2、H2S,CO；SF to be detected is input to by each group of the multiple groups sample gas6In gas controlling device, multiple groups monitoring result concentration is obtained；The multiple groups monitoring result concentration is compared with corresponding sample gas preset concentration, exports the corresponding calibration error of each group of sample gas；Calibration result is exported according to preset rules according to the corresponding calibration error of each group of sample gas；The method and system solve the problems, such as SF6 gas componant on-Line Monitor Device laboratory investment, using the one-component and mixed component of multiple gases ingredient, ensure that the diversity of detection sample gas；By the way that ambient temperature conditions are arranged, it ensure that and facility environment factor to be checked is considered.
Description
Technical field
The present invention relates to instrument detection fields, more particularly, to a kind of couple of SF6Gas componant on-Line Monitor Device carries out
The method and system of calibration.
Background technique
In order to guarantee the safe operation of electric system, there is the inert gas of high stability, good insulation properties at normal temperature
SF6It is the first choice of totally-enclosed combination of power equipment as dielectric；SF6Purity in the enclosure space of power equipment is direct
Influence the safety of equipment and operations staff；In recent years, with SF6Gas componant detection technique is constantly progressive, and electric system is
Electrical equipment SF is carried out6Gas decomposition product monitors work on-line.Common SF6 gas decomposition product sensor makes for a long time
With in the process certain error can be generated since self-sensor device performance declines, need periodically to be calibrated, to ensure its detection
Accuracy.
Summary of the invention
It is existing for SF existing for background technique in order to solve6Gas componant on-Line Monitor Device is under its operating temperature
The problem of calibration of multiple gases ingredient one-component and multicomponent calibration accuracy, the present invention provides a kind of couple of SF6Gas-monitoring
By preset test order, the completion of automation is more for the method and system that device is calibrated, the method and system
Group calibration test, exports calibration result；A kind of couple of SF6The method that gas controlling device is calibrated includes:
Use high-purity SF6Gas dilutes multiple groups calibrating gas according to preset rules to preset concentration respectively, obtains multiple groups
Sample gas；The calibrating gas includes SO2、H2S,CO；
SF to be detected is input to by each group of the multiple groups sample gas6In gas controlling device, multiple groups prison is obtained
Survey result concentration；
The multiple groups monitoring result concentration is compared with corresponding sample gas preset concentration, exports each group of sample
The corresponding calibration error of gas；
Calibration result is exported according to preset rules according to the corresponding calibration error of each group of sample gas；
Further, each group in the multiple groups sample gas only includes a kind of calibrating gas；A kind of Standard Gases
Body corresponds to the sample gas of one or more groups of preset concentrations；
Further, each group in the multiple groups sample gas includes multiple gases, is arranged according to preset rules a variety of
Each in gas is to its corresponding preset concentration；
Further, SF to be detected is input in each group by the multiple groups sample gas6Gas-monitoring dress
Before setting, the method also includes:
Before each group of sample gas inputs, high-purity SF is used6Gas rinses SF to be detected with preset time6Gas
The gas piping of body ingredient on-Line Monitor Device, and by the SF to be detected6Gas controlling device indicating value zero；
Further, the multiple groups sample gas is the same calibrating gas of multiple groups same concentrations；
According to SF described in the multiple groups monitoring result concentration calculation6The repeatability of gas controlling device；
The calculation formula of the repeatability is
Wherein,For the arithmetic mean of instantaneous value of multiple groups monitoring result concentration, CiFor i-th group of correspondence in the multiple groups sample gas
Monitoring result concentration；
Further, SF to be detected is input in each group by the multiple groups sample gas6Gas-monitoring dress
Before setting, the method also includes:
According to preset rules, calibration experiments environment temperature is set.
A kind of couple of SF6The system that gas controlling device is calibrated includes:
Sample gas source unit, the sample gas source unit include multiple groups sample gas source, the multiple groups sample gas
Each gas circuit in source includes pressure reducing valve；Each of multiple groups sample gas source passes through pressure reducing valve and distribution unit respectively
Air inlet is attached；Each of multiple groups sample gas source is for providing the sample gas of default purity；The sample
Gas includes SO2、H2S, CO and SF6；
Distribution unit, the distribution unit are used for the component ratio of each sample gas according to preset rules configuration access
Example, and the calibration gas that configuration is completed is exported by preset flow rate；The distribution unit according to preset rules for continuously configuring
The calibration gas of multiple groups different component ratio, and be sequentially output by preset output rule；The output end of the distribution unit with
SF to be detected6The input terminal of gas componant on-Line Monitor Device is connected；
Comparing unit is calibrated, the calibration comparing unit is used to detect the actual sample gas concentration of distribution unit output
Value, and will test result and compared with to checking device testing result, output calibration comparison result；
Further, the system comprises waste heat recovery unit and air cleaning members；The waste heat recovery unit is used
In the exhaust gas of recycling calibration comparing unit output；The air cleaning member be used for keeps calibration monitoring environment air circulation with
Purification；
Further, the system comprises environment temperatures to adjust unit, and the environment temperature adjusts unit and is used for according to pre-
If the temperature of rule adjustment calibration monitoring environment；
Further, the calibration comparing unit is for repeatedly receiving SF to be detected6Gas controlling device output to
Monitoring result is detected, and calculates SF to be detected6The repeatability of gas controlling device.
The invention has the benefit that technical solution of the present invention, gives a kind of couple of SF6Gas controlling device carries out school
Quasi- method and system, the method and system are by preset test order, the completion multiple groups calibration test of automation,
Solve one-component calibration and multicomponent calibration of the SF6 gas componant on-Line Monitor Device under the conditions of its operating ambient temperature
Problem；The method and system by under a variety of one-components, mixed component to SF6The accuracy of gas controlling device carries out
Detection calibration improves test sample amount by automatic test advantage, improves calibration result accuracy；The method and it is
System ensure that the safety of test environment by setting waste heat recovery unit and air cleaning member.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is a kind of couple of SF of the specific embodiment of the invention6The method that gas componant on-Line Monitor Device is calibrated
Flow chart；
Fig. 2 is a kind of couple of SF of the specific embodiment of the invention6The structure chart for the system that gas controlling device is calibrated.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is a kind of couple of SF of the specific embodiment of the invention6The flow chart for the method that gas controlling device is calibrated；
The method and system pass through preset test order, the completion multiple groups calibration test of automation；A kind of couple of SF6Gas
The method that body monitoring device is calibrated includes:
Step 110, using high-purity SF6Gas dilutes multiple groups calibrating gas according to preset rules to preset concentration respectively,
Obtain multiple groups sample gas；The calibrating gas includes SO2、H2S,CO；
Further, it when obtaining multiple groups sample gas, is tried using the one-component accuracy for each calibrating gas
It tests to confirm SF6The calibration result of gas controlling device；That is, each group in the multiple groups sample gas only includes a kind of standard
Gas；A kind of calibrating gas corresponds to the sample gas of one or more groups of preset concentrations；
By taking the present embodiment as an example, the SO of one-component is configured2、H2S, the sample gas of CO, each one-component are logical
It crosses and uses high-purity SF6Gas is diluted to reach preset concentration；The SF of the high-purity6The purity of gas is not less than
99.99%, opposite expanded uncertainty is not more than 2%；For same calibrating gas, the difference of a variety of preset concentrations can configure
Sample gas, with SO2、H2S and CO citing, the reference value of preset concentration see the table below:
Further, when obtaining multiple groups sample gas, SF is confirmed using multicomponent accuracy test6Gas-monitoring dress
The calibration result set；That is, further, each group in the multiple groups sample gas includes multiple gases, according to preset rules
Each in multiple gases is set to its corresponding preset concentration；
By taking the present embodiment as an example, when configuring multi-component sample gas, each calibrating gas has its corresponding default
Concentration, and still use SF6Gas is as background gas；With SO2、H2S and CO carries out multiple groups distribution ratio to illustrate, and presets
The reference value of concentration see the table below:
Serial number in table is the group of multiple groups distribution ratio；
Step 120, SF to be detected is input to by each group of the multiple groups sample gas6Gas componant on-line monitoring dress
In setting, multiple groups monitoring result concentration is obtained；
Further, SF to be detected is input in each group by the multiple groups sample gas6Gas is supervised online
Before surveying in device, the method also includes:
Before each group of sample gas inputs, high-purity SF is used6Gas rinses SF to be detected with preset time6Gas
The gas piping of body ingredient on-Line Monitor Device, and by the SF to be detected6Gas componant on-Line Monitor Device indicating value zero；
The flushing further includes and SF to be detected6The connected gas piping of gas componant on-Line Monitor Device, so that whole
The stand-by gas piping of body is in complete pure state and (only has SF6Clean state)；In every gap tested twice,
The flushing of gas piping need to be carried out, to guarantee the accuracy of test；The time of the flushing is determining according to default rule, this reality
It applies in example, the time of flushing is no more than 10 minutes；
Step 130, the multiple groups monitoring result concentration is compared with corresponding sample gas preset concentration, output is every
The corresponding calibration error of one group of sample gas；
In the present embodiment, the calibration error is the difference of monitoring result concentration with corresponding sample gas preset concentration
Value；
Further, identical sample gas is separately input into SF to be detected6Gas componant on-Line Monitor Device with
And the SF of standard6In gas componant detection device, by the SF to be detected6The SF of gas controlling device and standard6Gas at
The registration of point detection device output compares, and obtains the calibration error for corresponding to this group of sample gas；
Step 140, calibration result is exported according to preset rules according to the corresponding calibration error of each group of sample gas；
Further, the method also includes calculating SF to be detected using repetitive test method6Gas controlling device
Repeatability:
When carrying out a reperformance test, the same calibrating gas of the multiple groups sample gas selection same concentrations, and
The multiple groups sample gas is identical sample, and the purpose is to test SF to be detected6Gas componant on-Line Monitor Device is multiple
When monitoring identical sample, whether the monitoring result concentration of output has repeatability；
The calculation formula of the repeatability is
Wherein,For the arithmetic mean of instantaneous value of multiple groups monitoring result concentration, CiFor i-th group of correspondence in the multiple groups sample gas
Monitoring result concentration；
The value of repeatability is smaller, illustrates the SF to be detected6Gas componant on-Line Monitor Device repeatability is better；
Because the test of repeatability can only be directed to single standard gas, therefore complete the repeatability examination for a certain calibrating gas
After testing, then repetitive test is carried out to other calibrating gas；And then multiple groups repeatability is obtained as a result, can be by repeating to multiple groups
The method that property result takes mean value obtains final repeatability；
Further, the method also includes: according to preset rules be arranged calibration experiments environment temperature；Because of the characteristic of gas
Can be affected by temperature, for comprehensive consideration under hot environment and in cold environments SF to be detected6Gas componant is supervised online
The accuracy performance for surveying device is first configured the temperature of test environment before being tested；The temperature can be set respectively
It is set to high temperature, room temperature and low temperature；After setting temperature and confirmation ambient temperature-stable, then start the examination of accuracy or repeatability
It tests；
It further, is guarantee SF to be detected6Gas controlling device is not influenced by environmental catastrophe, continue heating or
When cooling, temperature rate is no more than 1 DEG C/min；Keep 1h to confirm ambient temperature-stable after reaching preset temperature；
In the present embodiment, setting high-temperature temperature is 40 DEG C；It is 20 DEG C that ambient temperature, which is arranged,；It is -10 that cryogenic temperature, which is arranged,
℃。
Fig. 2 is a kind of couple of SF of the specific embodiment of the invention6The knot for the system that gas composition monitoring device is calibrated
Composition, as shown in Fig. 2, shown system includes:
Sample gas source unit 210, the sample gas source unit 210 include multiple groups sample gas source, the multiple groups sample
Each of this gas source includes pressure reducing valve；Each of multiple groups sample gas source passes through pressure reducing valve and distribution unit respectively
Air inlet be attached；Each of multiple groups sample gas source is for providing the sample gas of default purity；The sample
This gas includes SO2、H2S, CO and SF6；
Distribution unit 220, the distribution unit 220 are used for the group of each sample gas according to preset rules configuration access
Divide ratio, and the calibration gas that configuration is completed is exported by preset flow rate；The distribution unit 220 according to preset rules for connecting
The calibration gas of continuous configuration multiple groups different component ratio, and be sequentially output by preset output rule；The distribution unit 220
Output end and SF to be detected6The input terminal of gas componant on-Line Monitor Device is connected；
Comparing unit 230 is calibrated, the calibration comparing unit 230 is used to detect the actual alignment of the output of distribution unit 220
Gas concentration value, and according to the testing result and actual alignment gas concentration value, output calibration comparison result；
Further, the system comprises waste heat recovery unit and air cleaning members；The waste heat recovery unit is used
In recycling calibration comparing unit 230 and to the exhaust gas of checking device output；The air cleaning member is for keeping calibration monitoring ring
The air circulation and purification in border；
Further, the system comprises environment temperatures to adjust unit, and the environment temperature adjusts unit and is used for according to pre-
If rule adjustment waits for the operating temperature of checking device；
Further, the 230 repeated detection measuring samples gas component of calibration comparing unit and SF6 gas componant are online
Monitoring device testing result compares, and calculates SF to be detected6The repeatability of gas componant on-Line Monitor Device.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the disclosure
Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this specification.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.The step of being related in this specification, which numbers, is only used for distinguishing each step, and the time being not limited between each step
Or the relationship of logic, restriction unless the context clearly, otherwise the relationship between each step includes the case where various possible.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means to be in the disclosure
Within the scope of and form different embodiments.For example, embodiment claimed in detail in the claims is one of any
Can in any combination mode come using.
The various component embodiments of the disclosure can be implemented in hardware, or to run on one or more processors
Software module realize, or be implemented in a combination thereof.The disclosure is also implemented as executing side as described herein
The some or all equipment or system program (for example, computer program and computer program product) of method.It is such
It realizes that the program of the disclosure can store on a computer-readable medium, or can have the shape of one or more signal
Formula.Such signal can be downloaded from an internet website to obtain, and perhaps be provided on the carrier signal or with any other shape
Formula provides.
The disclosure is limited it should be noted that above-described embodiment illustrates rather than the disclosure, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.Word "comprising" is not arranged
Except there are element or steps not listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of more
A such element.The disclosure can be by means of including the hardware of several different elements and by means of properly programmed calculating
Machine is realized.If several in these systems can be by same in the unit claim for listing dry systems
Hardware branch embodies.
The above is only the specific embodiment of the disclosure, it is noted that for the ordinary skill people of this field
Member for, do not depart from the disclosure spirit under the premise of, can make several improvements, modify and deform, these improve, modification,
It is regarded as falling within the scope of protection of this application with deformation.
Claims (11)
1. a kind of couple of SF6The method that gas componant on-Line Monitor Device is calibrated, which comprises
Use high-purity SF6Gas dilutes multiple groups calibrating gas according to preset rules to preset concentration respectively, obtains multiple groups sample gas
Body；The calibrating gas includes SO2、H2S,CO；
SF to be detected is input to by each group of the multiple groups sample gas6In gas controlling device, multiple groups monitoring result is obtained
Concentration；
The multiple groups monitoring result concentration is compared with corresponding sample gas preset concentration, exports each group of sample gas
Corresponding calibration error；
Calibration result is exported according to preset rules according to the corresponding calibration error of each group of sample gas.
2. according to the method described in claim 1, it is characterized by: each group in the multiple groups sample gas only includes one kind
Calibrating gas；A kind of calibrating gas corresponds to the sample gas of one or more groups of preset concentrations.
3. according to the method described in claim 1, it is characterized by: each group in the multiple groups sample gas includes a variety of gas
Body, according to each in preset rules setting multiple gases to its corresponding preset concentration.
4. according to the method described in claim 1, it is characterized by: in each group of input by the multiple groups sample gas
To SF to be detected6Before in gas componant on-Line Monitor Device, the method also includes:
Before each group of sample gas inputs, high-purity SF is used6Gas rinses SF to be detected with preset time6Gas at
The gas piping of point on-Line Monitor Device, and by the SF to be detected6Gas controlling device indicating value zero.
5. according to the method described in claim 1, it is characterized by: the multiple groups sample gas is the same of multiple groups same concentrations
Calibrating gas；
According to SF described in the multiple groups monitoring result concentration calculation6The repeatability of gas componant on-Line Monitor Device；
The calculation formula of the repeatability is
Wherein,For the arithmetic mean of instantaneous value of multiple groups monitoring result concentration, CiFor i-th group of corresponding prison in the multiple groups sample gas
Survey result concentration.
6. according to the method described in claim 1, it is characterized by: in each group of input by the multiple groups sample gas
To SF to be detected6Before in gas controlling device, the method also includes:
According to preset rules, calibration experiments environment temperature is set.
7. a kind of couple of SF6The system that gas controlling device is calibrated, the system comprises:
Sample gas source unit, the sample gas source unit include multiple groups sample gas source, multiple groups sample gas source
Each includes pressure reducing valve；Each of multiple groups sample gas source pass through respectively the air inlet of pressure reducing valve and distribution unit into
Row connection；Each of multiple groups sample gas source is for providing the sample gas of default purity；The sample gas includes
SO2、H2S,CO；
Distribution unit, the distribution unit are used for the component ratio of each sample gas according to preset rules configuration access, and
The calibration gas that configuration is completed is exported by preset flow rate；The distribution unit is used to continuously configure multiple groups not according to preset rules
It is sequentially output with the calibration gas of component ratio, and by preset output rule；The output end of the distribution unit with it is to be detected
SF6The input terminal of gas controlling device is connected；
Comparing unit is calibrated, the calibration comparing unit is for receiving SF to be detected6The output of gas componant on-Line Monitor Device
Monitoring result to be detected and distribution unit output actual alignment gas concentration value, and according to the monitoring result to be detected with
And actual alignment gas concentration value, output calibration comparison result.
8. system according to claim 7, it is characterised in that: the system comprises standard SF6Gas componant detection device,
The standard SF6The input terminal of gas componant detection device is connected with the output end of distribution unit, the standard SF6Gas componant
Detection device and the SF to be measured6Gas componant on-Line Monitor Device receives identical calibration gas input；
The calibration comparing unit is used to export orientation ratio pair according to the result of standard testing result and monitoring device to be detected
As a result.
9. system according to claim 7, it is characterised in that: the system comprises waste heat recovery unit and air cleanings
Unit；The waste heat recovery unit is used to recycle the exhaust gas of calibration comparing unit output；The air cleaning member is for keeping
The air circulation and purification of calibration monitoring environment.
10. system according to claim 7, it is characterised in that: the system comprises environment temperatures to adjust unit, the ring
Border thermostat unit is used to adjust the temperature of calibration monitoring environment according to preset rules.
11. system according to claim 7, it is characterised in that: the calibration comparing unit is to be detected for repeatedly receiving
SF6The monitoring result to be detected of gas controlling device output, and calculate SF to be detected6The repeatability of gas controlling device.
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| CN110806554A (en) * | 2019-11-11 | 2020-02-18 | 广西电网有限责任公司桂林供电局 | Calibration method of PVC cable gas detector |
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| CN109991344A (en) * | 2019-04-04 | 2019-07-09 | 深圳博沃智慧科技有限公司 | A kind of surrounding air and the management method of the continuous online monitoring data processing of water body VOCs |
| CN109991344B (en) * | 2019-04-04 | 2021-06-15 | 深圳博沃智慧科技有限公司 | Management method for continuous online monitoring data processing of VOCs (volatile organic compounds) in ambient air and water |
| CN110806554A (en) * | 2019-11-11 | 2020-02-18 | 广西电网有限责任公司桂林供电局 | Calibration method of PVC cable gas detector |
| CN110806554B (en) * | 2019-11-11 | 2021-08-13 | 广西电网有限责任公司桂林供电局 | Calibration method of PVC cable gas detector |
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