CN206450642U - A kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector - Google Patents
A kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector Download PDFInfo
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Abstract
The utility model embodiment discloses a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector, this is used for the recharging type chromatogram detector of single hole sulfur hexafluoride electrical equipment by vacuumizing, sample collection, sample analysis, the pattern that sample is recharged realizes the automatic on-line detection and analysis to sulfur hexafluoride electrical equipment insulating gas, it is many with detected components, accuracy of detection is high, and can be to sulfur hexafluoride electrical equipment sample gas automatic sampling, detect and recharge, the harm for preventing gas discharge from being caused to personnel and environment, recharging for gas can not influence the insulating properties of electrical equipment simultaneously, substantially increase the frequency of sulfur hexafluoride on-line checking and ageing.
Description
Technical field
The utility model is related to electrical equipment detection field, more particularly to a kind of recharging type sulfur hexafluoride decomposition product chromatogram
On-line detector.
Background technology
With developing rapidly for power industry, sulfur hexafluoride electrical equipment quantity is on the increase.Electric arc, spark discharge,
Under the factors such as high temperature, sulfur hexafluoride gas easily ionizes decomposition, and its catabolite occurs anti-with the moisture in electrical equipment, oxygen
Should, generate SO2、H2The acidic materials such as S, HF, and SF4、 SOF2、SF2、SO2F2The material extremely strong etc. toxicity and corrosivity.Cause
This, the detection to sulfur hexafluoride decomposition product, the detection of especially a variety of catabolites, the operating shape for judging electrical equipment
State, failure cause, discharge level and degree of danger etc. have great importance.
The current detection method for sulfur hexafluoride electrical equipment gas mainly includes off-line type and online two methods,
Wherein online test method is due to higher ageing and receive more and more attention.Presently used on-line detector
It is mainly based upon electrochemical sensor detection method, and detection probe is installed on the taking on stomata of sulfur hexafluoride electrical equipment, can
For detecting one to two kind of characteristic gas component.
But stomata is taken because sulfur hexafluoride electrical equipment typically only has one, there is the gas and sulfur hexafluoride taken in stomata
Gas circulation in air chamber is poor, and takes at stomata and easily there are problems that, regular sampling representativeness occur not
Sufficient the problem of.In addition, the detection currently for the characteristic gas of sulfur hexafluoride gas includes SO2、H2S、CO、SO2F2、SO2F、CS2
Etc. multiple gases component, and the on-line detector based on electrochemical sensor is at most only capable of detecting 2 kinds of components, causes instrument
The validity and practicality of the detection of device are relatively low.In addition, project team's early-stage Study shows, for the inspection of sulfur hexafluoride characteristic gas
Survey, gas chromatograph is because its sulfur hexafluoride decomposition product detected components is more, accuracy of detection is high, test limit is low and increasingly by
The concern of people.Therefore, a set of on-line chromatograph detector suitable for monotrysian type sulfur hexafluoride electrical equipment catabolite is developed
It is those skilled in the art's technical issues that need to address.
Utility model content
The utility model embodiment discloses a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector, realizes
Automatic on-line detection and analysis to sulfur hexafluoride electrical equipment insulating gas, detected components are more, accuracy of detection is high, and can be right
The automatic sampling of sulfur hexafluoride electrical equipment sample gas, detect and recharge, prevent what gas discharge from causing to personnel and environment
Harm, while recharging for gas can not influence the insulating properties of electrical equipment, substantially increases the frequency of sulfur hexafluoride on-line checking
With it is ageing.
The utility model embodiment provides a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector, including：
Compression pump, vavuum pump, air accumulator, six-way valve, the first chromatographic column, the second chromatographic column and detector；
Described compression pump one end and the connection of described vavuum pump one end；
The vavuum pump other end and the connection of described air accumulator one end；
The air accumulator other end is connected by the first six-way valve with first chromatographic column；
First chromatographic column is connected by the second six-way valve with the second chromatographic column；
Second chromatographic column is connected with the detector.
Preferably, a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector that the utility model embodiment is provided
Also include：Quantity tube；
The sample introduction end of the quantity tube is connected with the 6th port port of first six-way valve, its sample outlet end and described the
The third connectivity mouth connection of one six-way valve.
Preferably, the second port of first six-way valve is connected with the sample introduction end of first chromatographic column, and described first
The sample outlet end of chromatographic column is connected with the first port of second six-way valve, the second port of second six-way valve and described the
The sample introduction end connection of two chromatographic columns, the sample outlet end of second chromatographic column is connected with detector.
Preferably, a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector that the utility model embodiment is provided
Also include：Triple valve and gas purifier；
First port of first six-way valve is connected with the first port of the triple valve, and the second of the triple valve leads to
Mouth is connected with the sample outlet end of the gas purifier, the third connectivity mouth of the third connectivity mouth of the triple valve and second six-way valve
Connection.
Preferably, the sample introduction end of the gas purifier is connected with carrier gas source of the gas, the sample introduction end of the gas purifier with
Pressure-reducing valve is provided with the pipeline of carrier gas source of the gas connection.
Preferably, the other end of the air accumulator is connected with the 4th port of the first six-way valve, the air accumulator it is another
Hold and be provided with proportioning valve on the pipeline being connected with the 4th port of the first six-way valve.
Preferably, the 5th port of first six-way valve is connected with gas compartment, the 5th port of first six-way valve
Switch valve, proportioning valve are provided with the pipeline being connected with gas compartment.
Preferably, a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector that the utility model embodiment is provided
Also include：Pressure gauge；
The air accumulator is connected with the pressure gauge.
Preferably, the 5th port of the other end of the compression pump and first six-way valve, the compression pump it is another
Hold and be provided with switch valve on the pipeline being connected with the 5th port of first six-way valve.
Preferably, one article of emptying pipeline connection of the 5th port of first six-way valve and detector, the evacuated tube
Switch valve is provided with road.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
Detection technique is advanced：Based on chromatogram Cleaning Principle, SO in sulfur hexafluoride electrical equipment can be achieved2、 CF4、SO2F2、
SO2F、H2S、CS2, COS on-line checkings while catabolite in totally 7, the test limit of all components is in below 1ppm, detection
Limit is low, and accuracy of detection is higher.
Detection is representative strong：The utility model mainly comes out the gas collecting in sulfur hexafluoride electrical equipment point
Analysis detection, compared with existing fixed on-line detector, efficiently solves the problem of gas sampling is representative not enough, carries significantly
The high validity of on-line checking.
High safety：The utility model can recharge back the sample gas after sampling analysis in former sulfur hexafluoride equipment, effectively
The harm for preventing sample gas discharge to produce environment, equipment and personnel, the function of recharging does not influence the insulation of electrical equipment
Property, substantially increase the frequency and ageing practicality of sulfur hexafluoride on-line checking.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector provided in the utility model embodiment
Structural representation；
Fig. 2 is a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector provided in the utility model embodiment
Schematic diagram in the state that vacuumizes；
Fig. 3 is a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector provided in the utility model embodiment
Schematic diagram in sample collection state；
Fig. 4 is a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector provided in the utility model embodiment
Schematic diagram in gas refill state；
Fig. 5 is a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector provided in the utility model embodiment
Schematic diagram in sample analysis state；
Fig. 6 is a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector provided in the utility model embodiment
Schematic diagram in sample analysis of shift state.
Wherein, marked in figure as described below：
1. the gas room 3 of sulfur hexafluoride gas room 2., the color of 14. 4. first six-way valve of proportioning valve, 5. quantity tube 6. first
Compose the pressure-reducing valve 13. of 7. second 11. gas purifier of six-way valve 8. second chromatographic column, 9. detector, 10. triple valve of post 12.
The compression pump V1 of 17. vavuum pump of carrier gas source of the gas 15. air accumulator, 16. pressure gauge 18.~V4. switch valves
Embodiment
The utility model embodiment discloses a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector, realizes
Automatic on-line detection and analysis to sulfur hexafluoride electrical equipment insulating gas, detected components are more, accuracy of detection is high, and can be right
The automatic sampling of sulfur hexafluoride electrical equipment sample gas, detect and recharge, prevent what gas discharge from causing to personnel and environment
Harm, while recharging for gas can not influence the insulating properties of electrical equipment, substantially increases the frequency of sulfur hexafluoride on-line checking
With it is ageing.
Referring to Fig. 1, a kind of one embodiment provided in the utility model embodiment includes：
Compression pump 18, vavuum pump 17, air accumulator 15, the chromatographic column 6 of six-way valve 4,7, first, the second chromatographic column 8 and detector
9；
The one end of compression pump 18 and the connection of the one end of vavuum pump 17；
The other end of vavuum pump 17 and the connection of the one end of air accumulator 15；
The other end of air accumulator 15 is connected by the first six-way valve 4 with the first chromatographic column 6；
First chromatographic column 6 is connected by the second six-way valve 7 with the second chromatographic column 8；
Second chromatographic column 8 is connected with detector 9.
A kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector that the utility model embodiment is provided also includes：
Quantity tube 5；
The sample introduction end of quantity tube 5 is connected with the 6th port port of the first six-way valve 4, its sample outlet end and the first six-way valve 4
Third connectivity mouth connection.
Second port of the first six-way valve 4 is connected with the sample introduction end of the first chromatographic column 6, the sample outlet end of the first chromatographic column 6 with
The first port connection of second six-way valve 7, the second port of the second six-way valve 7 is connected with the sample introduction end of the second chromatographic column 8, and second
The sample outlet end of chromatographic column 8 is connected with detector 9.
A kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector that the utility model embodiment is provided also includes：
Triple valve 10 and gas purifier 11；
First port of the first six-way valve 4 is connected with the first port of triple valve 10, the second port and gas of triple valve 10
The sample outlet end connection of body purifier 11, the third connectivity mouth of triple valve 10 is connected with the third connectivity mouth of the second six-way valve 7；
The sample introduction end of gas purifier 11 is connected with carrier gas source of the gas 13, sample introduction end and the carrier gas source of the gas 13 of gas purifier 11
Pressure-reducing valve 12 is provided with the pipeline of connection.
The other end of air accumulator 15 is connected with the 4th port of the first six-way valve 4, the other end of air accumulator 15 and the one or six
Proportioning valve 14 is provided with the pipeline of the 4th port connection of port valve 4.
5th port of the first six-way valve 4 is connected with gas compartment, the 5th port and the gas compartment (gas of the first six-way valve 4
Room include sulfur hexafluoride gas room 1 and gas room 2, gas room 2 be used for chromatogram detector on-line calibration) connection pipeline on set
It is equipped with switch valve V1 and V2, proportioning valve 3.
A kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector that the utility model embodiment is provided also includes：
Pressure gauge 16；
Air accumulator 15 is connected with pressure gauge 16.
5th port of the other end of compression pump 18 and the first six-way valve 4, the other end of compression pump 18 and the first six-way valve 4
The 5th port connection pipeline on be provided with switch valve V3.
Switch is provided with one article of emptying pipeline connection of the 5th port and detector of the first six-way valve 4, emptying pipeline
Valve V4.
In the present embodiment, sampling system include 2 sample intake passages, multiple switch valve, 2 proportioning valves 3 and 14, one
Quantity tube 5 and an air accumulator 15, are mainly used in the online acquisition to gas 2 in sulfur hexafluoride gas room 1 and gas room 2
With recharging.One is sulfur hexafluoride gas room 1 to be measured in wherein 2 sample intake passages, and another is gas room 2, and gas room 2 is led
It is used to carry out on-line calibration to sulfur hexafluoride online gc, it is ensured that the accuracy of chromatograph detection；Switch valve, proportioning valve etc.
Main to use flow direction, flow velocity and the pressure for controlling sulfur hexafluoride gas, proportioning valve is to the control range of sulfur hexafluoride gas flow
50~200ml/min；Six-way valve and quantity tube main function is gather a certain amount of sulfur hexafluoride gas, while by quantitative six
Sulfur fluoride gas carries such as chromatographic detection system；Quantity tube 5 is diameter 1.5mm sulfur passivation stainless steel tube, standard sample volume
For 5ml；Air accumulator 15 is one, stainless steel pressure tank, is mainly used in temporarily storing the sulfur hexafluoride gas of collection, to prevent
The influence that its unordered discharge is caused to environment.
Vavuum pump 17, compression pump 18 and the composition of pressure gauge 16 vacuumize and recharged system, and main function has two, and one is
The gas of detector is emptied, it is ensured that it is the gas in target sulfur hexafluoride air cell to enter the gas of gas sampling pipeline,
So as to ensure the representativeness of sample gas, two be for the gas refill in sulfur hexafluoride sampling system and in air accumulator 15 is returned
Former sulfur hexafluoride air cell, to ensure the stability of sulfur hexafluoride air cell pressure to be measured；Pressure gauge is used to control compressor and vacuum
The start and stop of pump, when system execution vacuumizes and recharges function, when the pressure value in air-channel system reaches predetermined value, pressure gauge
Automatic control system is provided signals to, while the start and stop of automatic control system control compressor and vavuum pump, manometric detection
Scope is 0~1.2M pa.
Chromatographic detection system mainly includes 2 LF-01 chromatographic columns 6,8, and (long 8m, internal diameter 3mm fill polarity macromolecular tree
Fat), PDD detector 9, chromatogram heater box, gas purifier 11, a six-way valve 4,7 etc..The 4th of second six-way valve 7
Port is connected with the 5th port by stainless steel tube, and the 6th port is directly emptied；2 LF-01 chromatographic columns are decomposed for sulfur hexafluoride
Product dedicated analysis post, can efficiently separate the SO in sulfur hexafluoride gas2、SO2F2、SO2F、H2S、CF4Etc. multiple gases component；
Chromatogram heater box is mainly used in two chromatographic columns being heated to the temperature of needs, and its temperature range is room temperature to 200 DEG C；It is described
Pipeline, valve of gas chromatograph etc. use 1.5mm sulfur passivation stainless steel sampling pipes, and metal pair is used between valve and pipeline
The high-quality 2/3- stainless steel diaphragm converting interfaces of metal sealing, to prevent the absorption to sample gas；PDD detectors 9 are helium ion
Pulse detector one, the helium ion pulse detector is pulsed discharge helium ionization detector, to improve to gas
The detection sensitivity of body, its effective detection is limited at ppm grades.
Gas chromatograph also includes automaton, and the automaton is for microcomputer or with liquid crystal display
The instrument panel of device, can provide network remote management to each device in chromatograph, be conducive to instrument and the long-range prison of data
Test tube is managed；Chromatographic revertive control is operated with computer.
The present embodiment carry out sulfur hexafluoride decomposition product detection process be：Initialize-vacuumize-sample collection-gas
Physical examination survey and analysis-analysis analysis of shift-sampler such as recharge at the process, specific as follows：
(1) initialize
Init state is as shown in figure 1, sulfur hexafluoride gas room 1 is connected with detector, and all valves of detector are all closed
Close, vavuum pump 17 and compressor 18 are out of service；Helium source of the gas (carrier gas source of the gas 13) is opened, and flow is adjusted into 100ml/min,
Sulfur hexafluoride on-line detector is then turned on, chromatograph condition of work is set as chromatogram column temperature：60℃；Detector temperature：120
℃；Helium flows separately through the first six-way valve 4 and the second six-way valve 7 after pressure-reducing valve 12, gas purifier 11, wherein flowing through first
The helium of six-way valve 4 enters detection after the first chromatographic column 6 and the second chromatographic column 8, and whether the baseline for observing chromatogram detector is steady
It is fixed.
(2) vacuumize
When detecting that gas enters detector, may there be air or other gases in detector, directly ventilation not only influences
Data precision is detected, while also being polluted to sulfur hexafluoride gas.Therefore, in order to remove residual gas in sampling pipe, need
Original air path part gas is vacuumized.Underpressure pattern is set on sulfur hexafluoride detection control panel, by pressure detecting
The pressure value of table 2 is set to 500Pa, starts underpressure pattern, vacuumizes flow as shown in Fig. 2 valve V4, V3 are opened, valve V1,
V2 and proportioning valve 3,14 are closed, and vavuum pump 17 and compression pump 18 start simultaneously, by sampling system air accumulator 15, pipeline and valve
Interior gas is all emptied.When system vacuum reaches pre-provisioning request, system recovers original state into accompanying drawing 1 (by being
Pressure gauge 16 in system is automatically controlled).
(3) sample collection
The systematic sampling flow for carrying out sulfur hexafluoride electrical equipment insulating gas is as shown in Figure 3.Detect and control in sulfur hexafluoride
Gas production flow is set in making sheet as 100ml/min, the sampling time is 10min, start sampling start button, valve V1 and proportioning valve 3,
14 are opened, and V2, V3 and V4 are closed, and compression pump 18 and vavuum pump 17 are out of service.Gas in sulfur hexafluoride gas room 1 through V1,
Stored after proportioning valve 3 and 14 and the first six-way valve 4 into air accumulator 15.After the value of pressure gauge 16 reaches stationary value, system is extensive
Again to original state (Fig. 1), all valves of system are closed.
(4) sample detection and analysis
Sulfur hexafluoride gas in quantity tube 5 is mainly carried along into chromatographic detection system by sample detection, its flow chart
As shown in Figure 5.In chromatogram setting plate setting testing conditions：Chromatogram temperature：60 DEG C, detector temperature：120 DEG C, external event：
00th, 0.20,8.00,14.00,30.00 (represent respectively, start to start, sampling, flowing valve one switches to Fig. 5 states；0.20min
Six-way valve one back switches to Fig. 1 states afterwards；Six-way valve two switches to Fig. 6 states after 8min；Six-way valve two is switched to after 14min
Fig. 1 states；Sample analysis is completed after 30min, full spectrogram is provided.)
When starting detection, the first six-way valve 4 is switched to pattern in Fig. 5, helium enters through the port of the first six-way valve 4 first
After entering, the sulfur hexafluoride sample device in quantity tube 5 is carried and enters the first chromatographic column 6 after the outflow of the second port, is at this moment sampled
Valve, the pump of gas circuit are completely in closed mode；After the gas in quantity tube 5 fully enters the first chromatographic column 6, system is recovered
To original state (Fig. 1), carrier gas helium carry sulfur hexafluoride gas by the first chromatographic column 6 separate after have and controlled through the second six-way valve 7
Analyzed after system into detector 9.
After the completion of detection, according to sample spectrogram, SO is calculated according to sample peak height automatically2、CF4、SO2F2、 SO2F、H2S、
CS2, COS concentration value.
(5) gas analysis of shift
Due to the characteristic gas under the conditions of sulfur hexafluoride sample gas Main Analysis sulfur hexafluoride background gas, to realize gas
Limited separation between component, the sulfur hexafluoride gas of the first chromatographic column 6 need to be emptied, when gas analysis proceeds to 10min, hold
Promoting the circulation of qi body analysis of shift, is specifically shown in shown in accompanying drawing 6.During gas analysis of shift, the first six-way valve 4 is motionless, and the second six-way valve 7 is carried out
After gas is entered by the port of the second six-way valve 7 first in switching, the first chromatographic column 6, emptied by the second port.Gas switches
After about 5min, state shown in Fig. 1 is switched to again, and the gas that at this moment carrier gas is carried in the first chromatographic column 6 enters the second chromatographic column
8, detected after separation into detector 9, until completing gas detection.
(6) gas refill
To prevent the unordered discharge of sulfur hexafluoride gas collected from, to testing staff's injury and the pollution of environment, ensureing simultaneously
The gas pressure of former sulfur hexafluoride gas room 1 is stable, and the gas after collection need to be recharged back to former sulfur hexafluoride gas room 1 again.
The pressure value of pressure gauge 2 is set as 500Pa, starts gas refill button, system recharges gas to former sulfur hexafluoride air cell automatically,
Gas refill flow is as shown in figure 4, valve V1, V3 are opened, and V2, V4 and proportioning valve 3,14 are closed, vavuum pump 17 and compression pump 18
Start, the gas refill in system is gone back into former sulfur hexafluoride gas room 1, instrument pressure to be detected reaches steady state value (pressure gauge 16)
When, system is recovered to original state (Fig. 1), and compression pump 18 is out of service.
In the present embodiment, instrument specific targets are as follows：
Gas detected components：Air, CF under sulfur hexafluoride background gas4、SO2F2、SOF2、SO2And H2The gases such as S.
(1) appearance time is as shown in table 1：
| Sequence number | Analyte | Appearance time |
| 1 | Air | 3.548 |
| 2 | CF4 | 4.687 |
| 3 | H2S | 6.482 |
| 4 | SF6 | 11.882 |
| 5 | SOF2 | 16.464 |
| 6 | SO2F2 | 25.020 |
| 7 | SO2 | 29.000 |
Table 1
(2) accuracy of detection：10 can be reached-6Level.
(3) occupation mode：Open air is continuously used.
(4) sample mode：Sampling and automatic sampling manually, inspection, day inspection, monthly test etc. when automatic sampling includes.
(5) side sulfur hexafluoride electrical equipment scope is treated：Sulfur hexafluoride electrical equipment, 0.2~0.7MPa of pressure limit is (definitely
Pressure).
(6) vacuum index：System vacuum-pumping is to 500Pa (absolute pressure).
(7) sampling flow scope：0~1L/min.
(8) chromatogram temperature-control range：20~200 DEG C.
(9) gas refill rate：99.99%.
(10) rated voltage：250VAC.
(11) rated frequency：50.00±0.5Hz.
(12) weight：10kg
A kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector is above examples provided, is realized to hexafluoro
Change the automatic on-line detection and analysis of sulphur insulation of electrical installation gas, detected components are more, accuracy of detection is high, and can be to lithium
The automatic sampling of sulphur electrical equipment sample gas, detect and recharge, the harm for preventing gas discharge from being caused to personnel and environment, together
When recharging for gas can not influence the insulating properties of electrical equipment, substantially increase the frequency and timeliness of sulfur hexafluoride on-line checking
Property.
A kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector provided by the utility model is carried out above
It is discussed in detail, for those of ordinary skill in the art, according to the thought of the utility model embodiment, in embodiment
And will change in application, in summary, this specification content should not be construed as to limitation of the present utility model.
Claims (10)
1. a kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector, it is characterised in that including：Compression pump, vavuum pump,
Air accumulator, six-way valve, the first chromatographic column, the second chromatographic column and detector；
Described compression pump one end and the connection of described vavuum pump one end；
The vavuum pump other end and the connection of described air accumulator one end；
The air accumulator other end is connected by the first six-way valve with first chromatographic column；
First chromatographic column is connected by the second six-way valve with the second chromatographic column；
Second chromatographic column is connected with the detector.
2. recharging type sulfur hexafluoride decomposition product chromatogram on-line detector according to claim 1, it is characterised in that also wrap
Include：Quantity tube；
The sample introduction end of the quantity tube is connected with the 6th port port of first six-way valve, its sample outlet end and the described 1st
The third connectivity mouth connection of port valve.
3. recharging type sulfur hexafluoride decomposition product chromatogram on-line detector according to claim 2, it is characterised in that described
Second port of the first six-way valve is connected with the sample introduction end of first chromatographic column, the sample outlet end of first chromatographic column with it is described
The first port connection of second six-way valve, the second port of second six-way valve and the sample introduction end of second chromatographic column connect
Connect, the sample outlet end of second chromatographic column is connected with detector.
4. recharging type sulfur hexafluoride decomposition product chromatogram on-line detector according to claim 3, it is characterised in that also wrap
Include：Triple valve and gas purifier；
First port of first six-way valve is connected with the first port of the triple valve, the second port of the triple valve with
The sample outlet end connection of the gas purifier, the third connectivity mouth of the third connectivity mouth of the triple valve and second six-way valve connects
Connect.
5. recharging type sulfur hexafluoride decomposition product chromatogram on-line detector according to claim 4, it is characterised in that described
The sample introduction end of gas purifier is connected with carrier gas source of the gas, on the pipeline that the sample introduction end of the gas purifier is connected with carrier gas source of the gas
It is provided with pressure-reducing valve.
6. recharging type sulfur hexafluoride decomposition product chromatogram on-line detector according to claim 1, it is characterised in that described
The other end of air accumulator is connected with the 4th port of the first six-way valve, and the 4th of the other end of the air accumulator and the first six-way valve the
Proportioning valve is provided with the pipeline of port connection.
7. recharging type sulfur hexafluoride decomposition product chromatogram on-line detector according to claim 6, it is characterised in that described
5th port of the first six-way valve is connected with gas compartment, on the pipeline that the 5th port of first six-way valve is connected with gas compartment
It is provided with switch valve, proportioning valve.
8. recharging type sulfur hexafluoride decomposition product chromatogram on-line detector according to claim 6, it is characterised in that also wrap
Include：Pressure gauge；
The air accumulator is connected with the pressure gauge.
9. recharging type sulfur hexafluoride decomposition product chromatogram on-line detector according to claim 7, it is characterised in that described
5th port of the other end of compression pump and first six-way valve, the other end of the compression pump and first six-way valve
Switch valve is provided with the pipeline of 5th port connection.
10. recharging type sulfur hexafluoride decomposition product chromatogram on-line detector according to claim 9, it is characterised in that institute
State and be provided with switch valve on one article of emptying pipeline connection of the 5th port and detector of the first six-way valve, the emptying pipeline.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621189268.5U CN206450642U (en) | 2016-10-31 | 2016-10-31 | A kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector |
| US16/088,813 US10900940B2 (en) | 2016-10-31 | 2017-06-02 | Refilling-type online chromatographic detector for sulphur hexafluoride decomposition products |
| PCT/CN2017/086904 WO2018076694A1 (en) | 2016-10-31 | 2017-06-02 | Refilling-type online chromatographic detector for sulphur hexafluoride decomposition products |
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| CN201621189268.5U CN206450642U (en) | 2016-10-31 | 2016-10-31 | A kind of recharging type sulfur hexafluoride decomposition product chromatogram on-line detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982724A (en) * | 2018-08-13 | 2018-12-11 | 朗析仪器（上海）有限公司 | A kind of in-line analyzer for perfluor iodoethane trace impurity oxygen analysis |
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2016
- 2016-10-31 CN CN201621189268.5U patent/CN206450642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982724A (en) * | 2018-08-13 | 2018-12-11 | 朗析仪器（上海）有限公司 | A kind of in-line analyzer for perfluor iodoethane trace impurity oxygen analysis |
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