CN102353737A - Detection device for detecting sulfur hexafluoride electrical equipment fault gas - Google Patents
Detection device for detecting sulfur hexafluoride electrical equipment fault gas Download PDFInfo
- Publication number
- CN102353737A CN102353737A CN201110247279XA CN201110247279A CN102353737A CN 102353737 A CN102353737 A CN 102353737A CN 201110247279X A CN201110247279X A CN 201110247279XA CN 201110247279 A CN201110247279 A CN 201110247279A CN 102353737 A CN102353737 A CN 102353737A
- Authority
- CN
- China
- Prior art keywords
- way valve
- separative element
- electrical equipment
- gas
- sulfur hexafluoride
- 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
Images
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention discloses a detection device for detecting sulfur hexafluoride electrical equipment fault gas. The detection device provided by the invention comprises a thermal conductivity detector, a separator and a pulsed discharge helium ion detector, wherein the separator contains a helium gas intake, a first separation unit, a second separation unit and a third separation unit, the helium gas intake is connected with the first separation unit, which is respectively connected with the second separation unit and the third separation unit; the third separation unit is connected with the thermal conductivity detector and the pulsed discharge helium ion detector (PDD); and the second separation unit is connected with the third separation unit. Based on the gas chromatography principle and by the adoption of multiple chromatographic columns and the tail-blowing method, the separation system is established to separate all parts for the determination of SF6 electrical equipment faults, and the pulsed discharge helium ion detector is applied for quantity analysis, thus overcoming defects of the prior art and leading to a good separating effect.
Description
Technical field
The present invention relates to the detection range of electrical equipment, refer in particular to a kind of pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas.
Background technology
SF
6As the electric insulation medium of a new generation, have superpower insulating capacity and arc extinguishing ability, and have noncombustibility, at first in isolating switch and combined electrical apparatus, use in the sixties in 20th century, expanding application is in transformer, cable etc., SF in recent years
6Air insulating device { comprising: transformer, isolating switch, mutual inductor, GIS (gas-insulating and fully-enclosed combined electrical apparatus) } the main developing direction that has become high-tension apparatus.
Use the electrical equipment of SF6 gas as insulating medium, when device interior exists shelf depreciation, disruptive discharge and overheating fault, the SF of device interior
6Gas, solid insulation and metallic conductor are incited somebody to action decomposition in various degree and are produced various analytes; These analytes each other or and device interior gas, solid material between through further reaction, absorption; Last analyte concentration reaches dynamic balance state, is present in SF through detection
6These analytes in the gas can be judged SF
6Whether electrical equipment exists the latency fault.
The analytical approach that is applied to the sulfur hexafluoride electrical equipment failure gas at present mainly contains vapor-phase chromatography, GC-MS(gas chromatography-mass spectrography), infra-red sepectrometry, electrochemical methods, chemical staining method etc.
1. electrochemical process
Electrochemical methods and chemical staining method institute ability detection material kind are more single, only are confined to the part component, like SO
2, H
2S, CO, HF etc. can't carry out multianalysis to the failure gas component, and problems such as the adjustment at zero point of detecting instrument ubiquity is inaccurate, zero point drift.But its equipment volume is little, and detection speed is fast, and sensitivity can reach below the 1 μ L/L, so be that the present detection method medium sensitivity of using is the highest, also is unique SF of satisfying
6The instrument that electrical equipment malfunction analyte detection sensitivity requires.Be mainly used in on-the-spot the detection at present, with regard to the electrical equipment scene routinize, fast detecting, also not have alternative method at present.
2. infra-red sepectrometry
Infra-red sepectrometry is based on the detection method of gas to the absorption of infrared light.It is qualitative to be according to wave number and the waveform of material to infrared Absorption, and its quantitative foundation is the intensity of material to infrared Absorption.Except monoatomic molecules and homonuclear molecule, like O
2, N
2, outside the Ne etc., nearly all compound all has absorption in the infrared light district.This method is compared with vapor-phase chromatography and GC-MS(gas chromatography-mass spectrography), and analysis speed soon, does not destroy a kind gas, can realize detecting under the normal temperature.But for the analysis of sulfur hexafluoride electrical equipment failure gas, because infrared absorption peak and its decomposition product of sulfur hexafluoride, like SO
2, F
2, CF
4, SO
2Infrared absorption peak exist and to overlap, so quantivative approach is complicated, and detection limit generally can only reach 5 μ L/L ~ 10 μ L/L also in the ppm level, do not satisfy the detection requirement of sulfur hexafluoride electrical equipment failure gas.
3. vapor-phase chromatography
Vapor-phase chromatography can be analyzed the multicomponent mixture with separate complex, and can with multiple analytical instrument logotype, be a kind of strong analysis means, have bright prospects, also be the popular method of analyzing the sulfur hexafluoride electrical equipment failure gas at present.
Advantage with gc analysis sulfur hexafluoride electrical equipment failure gas is that it is that a kind of elder generation separates the method that afterwards detects, and can effectively avoid the cross interference of various components.In addition, gas chromatography can with multiple analytical instrument coupling, like mass spectrometry (GC-MS), gas chromatography and Fourier's infrared spectrum coupling (GC-FTIR), advantage that can comprehensive various analytical instrument is comparatively comprehensively analyzed.
Be applied to the vapor-phase chromatography that the sulfur hexafluoride electrical equipment failure gas detects, classify, mainly contain thermal conductance (TCD) method and thermal conductance-flame luminosity series connection (TCD-FPD) method etc. by the kind of detecting device.
Thermal conductivity detector (TCD) (TCD) almost all has response to all substances, and versatility is good, and the range of linearity is wide.Its quantitative principle is based on different material and has different thermal conductivity coefficients, and quantivative approach is simple.This detection method mainly is applicable to the detection of the new gas of sulfur hexafluoride.But its sensitivity is lower, particularly to H
2S, SO
2, F
2, SO
2, gas detection signals such as CO a little less than.And according to present experience, the detection of these several gases all plays an important role for the fault or the latency failure judgment of sulfur hexafluoride electrical equipment.
The TCD-FPD method is promptly connected and is used thermal conductivity detector (TCD) (TCD) and flame photometric detector (FPD) (FPD).Flame photometric detector (FPD) (FPD) is a kind of phosphorus, sulphur compound to be had high selectivity and highly sensitive mass flow rate sensitive detector.The TCD-FPD method has been introduced FPD, when overcoming simple use TCD to H
2S, SO
2And SO
2, F
2Deng the not high shortcoming of sulphur compound sensitivity.But still can't realize the low concentration analysis of materials such as carbon compound.And the response of FPD is nonlinear response, and quantivative approach is comparatively complicated.
4. GC-MS(gas chromatography-mass spectrography)
Mass spectrum is to one of the strongest method of pure material evaluation.GC-MS(gas chromatography-mass spectrography) is to utilize chromatographic process that the complicated appearance gas of component is separated and quantitatively, through mass spectrum each component is carried out qualitative analysis again.This method combines the advantage of advantage and the mass spectrum of gas-chromatography on quantitatively on qualitative.But because mass spectrum mainly is the qualitative analysis to pure material; So the GC-MS(gas chromatography-mass spectrography) of sulfur hexafluoride electrical equipment failure gas must be based on the chromatographic analysis systems that is fit to, promptly each target components of appearance gas is separated fully and the high chromatographic analysis systems of detection sensitivity.
In sum, there is following shortcoming in the general at present various detection methods of using:
(1) there is instrumental drift in electrochemical process, and stability of instrument is poor;
(2) there is the phase mutual interference in infra-red sepectrometry, and detection sensitivity can not meet the demands;
(3) sensitivity of vapor-phase chromatography thermal conductivity detector (TCD) is not high, and the flame photometric detector (FPD) response is non-linear, and the response component is few, and sensitivity can not be satisfied the fault analyte and detect requirement;
(4) use a root chromatogram column to separate, the component degree of separation can not meet the demands.
Summary of the invention
Goal of the invention of the present invention provides a kind of pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas, and it has overcome the defective of prior art, and detection sensitivity is high, each component separating effect is good and have higher separation efficiency.
Preferably, be connected with purification plant between said six-way valve one and the said chromatographic column two.
The helium ion detector (PDHID) that the present invention uses, its principle reaches secondary electron and the helium collision that under high-voltage electric field quickens, obtains energy based on the high-energy electron of Pulsed Discharge, produces metastable helium He
*(19.8ev), a part of helium ion also is ionized simultaneously, forms He
+(24.5 ev).Mutual collision between metastable helium atom excites generation helium ion with helium atom partly again.The excited state helium of various energy levels and the atom or the molecular collision of tested component; When tested component ionic potential is lower than helium (when being tested component ionic potential＜19.8ev); Tested component is by ionization, through the detection signal of helium ion detector collector, with regard to the tested component concentrations of ability detection by quantitative.Its contingent reaction is following:
e?+He?→?He*?+?eˊ
e?+He?→?He
+?+2?eˊ
He?*+He*?→He
++?He+?e
He*?+?S?→?He+?S
+?+?eˊ
e+?S?→?S
+?+?2?eˊ
e+?S?→S*?+
S*+?S*?→S
++?S?+?eˊ
In the formula:
He-ground state helium atom
He*-metastable helium atomic
He
+-excited state helium ion
E-high energy electron
E ˊ-low-energy electron
The analysis component of S-except that neon
In the helium ion detector, the helium of process purification utensil flow into region of discharge, becomes metastable helium He
*After appearance gas in the chromatographic column flows into opposite direction, ionization under ionizing event, the electronics enrichment that ionization produces changes into electric signal to electrode.The fashionable base flow signal of no component stream for carrier gas ionization generation, the fashionable electric current of tested component stream increases, and the degree that electric current increases is directly proportional with concentration of component, thereby realizes detection by quantitative.The helium ion detector can ionization all substances except that neon (21.56 eV), so helium ionization detector can be to the overwhelming majority's substance responds, and is positive (along with the increase of fixed current) to the response of fixed gas, versatility is good.The helium ion detector has high sensitivity simultaneously, can in the scope of low ppb level, carry out concentration determination.When measuring the concentration of minimum detectable quantity 5 one magnitude, the result still is linear, and the good range of linearity is arranged.And helium ionization detector only need use high-purity helium, need not oxygen and hydrogen, do not have naked light, and security is good.
The present invention is achieved in that
A kind of pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas, it includes thermal conductivity detector (TCD), tripping device and pulsed discharge helium ion detector;
Said tripping device includes helium inlet pipe, separative element one, separative element two and separative element three; Said helium inlet pipe is connected with said separative element one; Said separative element one is connected with said separative element two and said separative element three respectively; Said separative element three is connected with said thermal conductivity detector (TCD) and said Pulsed Discharge Detector, and said separative element two is connected with said separative element three;
Said separative element one comprises that a kind gas inlet pipe, quantity tube, appearance gas go out pipe, ten-way valve and chromatogram pre-column; Said appearance gas inlet pipe, said quantity tube, said ten-way valve and said appearance gas go out pipe and connect successively, and said helium inlet pipe, said ten-way valve and said chromatogram pre-column connect successively;
Said separative element two comprises six-way valve one and chromatographic column two, and said chromatogram pre-column, said six-way valve one and said chromatographic column two connect successively;
Said separative element three comprises six-way valve two and chromatographic column three, and said chromatogram pre-column is connected with said six-way valve two, and said six-way valve one is connected with said six-way valve two, and said six-way valve two is connected with said chromatographic column three successively;
Wherein, Control said ten-way valve, said six-way valve one and said six-way valve two and rotate and make it respectively when sample introduction, be in different conducting states when separating, make separation component get into said separative element one, said separative element two or said separative element three respectively.
Preferably, the component of said chromatogram pre-column is G-Pro, and whole components are separated.
Preferably, the component of said chromatographic column two is G-Pro, and after separating through said chromatogram pre-column, the component of sulfur hexafluoride chromatographic peak back is carried out next step separation.
Preferably, the component of said chromatographic column three is 13X, and after separating through said chromatogram pre-column, the component of sulfur hexafluoride chromatographic peak front is carried out next step separation.
Preferably; The said pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas also comprises at least one drive unit; Said drive unit is connected with said ten-way valve, said six-way valve one and said six-way valve two, drives said ten-way valve, said six-way valve one and said six-way valve two and rotates to change its conducting direction.
Preferably; Said tripping device includes three drive units; Said drive unit comprises wheelwork and the cylinder that is connected respectively with said ten-way valve, said six-way valve one and said six-way valve two, and three said wheelworks are connected with said ten-way valve, said six-way valve one and said six-way valve two respectively.
Preferably, said pulsed discharge helium ion detector is connected with the tail blowpipe.
Preferably, said pulsed discharge helium ion detector is connected with the reference draft tube.
Preferably, be connected with purification plant between said six-way valve one and the said chromatographic column two.
Technical characterstic of the present invention is:
(1) preferred G-Pro chromatographic column is carried out pre-separation as the pre-separation post to the sulfur hexafluoride gas component.
(2) preferred G-Pro chromatographic column is as chromatographic column post two, and after separating through G-Pro pre-separation post, the component behind the sulfur hexafluoride chromatographic peak is further separated.
(3) preferred 13X chromatographic column is as post three, and after separating through G-Pro pre-separation post, the component of sulfur hexafluoride chromatographic peak front is further separated.
(4) use a ten-way valve, two six-way valves, with chromatogram pre-column, chromatographic column post two and chromatographic column post three common formation tripping devices.This tripping device can make detected components reach good degree of separation under the condition of 50 ℃ ~ 60 ℃ post oven temperature, degree, satisfies qualitative, quantitative requirement.Avoid temperature programme to cause baseline wander and higher post oven temperature, degree to cause some component such as SOF
2Etc. the decomposition of component, thereby influence the qualitative and detection by quantitative of component.
The pick-up unit that the present invention is used to detect the sulfur hexafluoride electrical equipment failure gas compared with prior art has following beneficial effect:
(1) highly sensitive
The sensitivity of pulsed discharge helium ion detector is the PPb rank, reaches 0.01 μ L/L ~ 0.1 μ L/L;
(2) linear response
Pulsed discharge helium ion detector and thermal conductivity detector (TCD) all are all-purpose detectors, all are linear responses, and the range of linearity is wide;
(3) piece-rate system of many root chromatogram columns
The method of using chromatogram pre-column, chromatographic column two and third-class three root chromatogram columns of chromatographic column and adopting tail to blow is formed piece-rate system, SF
6The component that the electrical equipment malfunction judgement needs is all separated;
(4) detected components is many
Pick-up unit of the present invention, the following component that it can detect:
O
2, N
2, CO, CO
2, NO
2, CF
4, C
2F
6, C
3F
8, H
2S, SO
2, SOF
2, SO
2F
2, S
2F
10O, SF
6Deng more than 14 kinds;
(5) practical
The present invention is through the conducting direction of control ten-way valve, six-way valve one and six-way valve two, and selectivity detects target components, between detection time and the kind quantity of separating, detect component, makes balance, and stronger practicality is arranged.
Description of drawings
Fig. 1 is of the present invention group of structural representation that is used to detect the pick-up unit of sulfur hexafluoride electrical equipment failure gas;
The pick-up unit that Fig. 2 is used to detect the sulfur hexafluoride electrical equipment failure gas for the present invention is to O
2, N
2, CF
4, SF
6, C
3F
8, SO
2F
2, SOF
2, SO2, S
2OF
10Detection spectrogram Deng material;
The pick-up unit that Fig. 3 is used to detect the sulfur hexafluoride electrical equipment failure gas for the present invention is to O
2, N
2, CF
4, C
2F
6, C
3F
8, SO
2F
2Detection spectrogram Deng material.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated:
As shown in Figure 1, be used to detect the pick-up unit of sulfur hexafluoride electrical equipment failure gas, it includes pulsed discharge helium ion detector, thermal conductivity detector (TCD) and tripping device.Said tripping device includes helium inlet pipe 10, separative element one, separative element two and separative element three; Said helium inlet pipe 1 is connected with said separative element one; Said separative element one is connected with said separative element two and said separative element three respectively; Said separative element three is connected with said thermal conductivity detector (TCD) TCD and said Pulsed Discharge Detector PDD, and said separative element two is connected with said separative element three.Said separative element one comprises that a kind gas inlet pipe 11, quantity tube 12, appearance gas go out pipe 13, ten-way valve 14 and chromatogram pre-column 15; Said appearance gas inlet pipe 11, said quantity tube 12, said ten-way valve 14 and said appearance gas go out pipe 13 and connect successively, and said helium inlet pipe 10, said ten-way valve 14 and said chromatogram pre-column 15 connect successively;
Said separative element two comprises six-way valve 1 and chromatographic column 2 17, and said chromatogram pre-column 15, said six-way valve 1 and said chromatographic column 2 17 connect successively;
Said separative element three comprises six-way valve 2 18 and chromatographic column 3 19, and said chromatogram pre-column 15 is connected with said six-way valve 2 18, and said six-way valve 1 is connected with said six-way valve 2 18, and said six-way valve 2 18 is connected with said chromatographic column 3 19 successively;
Through control said ten-way valve 14, said six-way valve 1 and said six-way valve 2 18 rotate make its respectively when the sample introduction, when separation is in different conducting states, thereby makes kind gas separated through said chromatographic column post 2 17 and said chromatographic column 3 19.
Wherein, said separative element one main quantitative sample injection and the detected components pre-separation function of accomplishing appearance gas (standard gas), the workflow of said separative element one is following:
(1) when ten-way valve 14 is in sample introduction standby condition (for solid line is communicated with, dotted line is obstructed among Fig. 1)
1) helium is through the interface h of draft tube 20 → ten-way valve 14
1The interface g of → ten-way valve 14
1The interface e of → ten-way valve 14
1The interface f of → ten-way valve 14
1The interface i of → ten-way valve 14
1The interface j of → ten-way valve 14
1→ chromatogram pre-column 15.
2) when quantity tube 12 is in the sample feeding standby condition
Sample gas (or calibrating gas) is through the interface c of 11 → ten-way valve 14
1The interface d of → ten-way valve 14
1The interface a of → quantity tube 12 → ten-way valve 14
1The interface b of → ten-way valve 14
1→ appearance gas goes out pipe 13 emptyings.Accomplish the work of sample introduction gasometry.
When (2) ten-way valve 14 is in sample introduction state (for dotted line is communicated with, solid line is obstructed among Fig. 1)
Helium is through the interface h of helium inlet pipe 10 → ten-way valve 14
1The interface i of → ten-way valve 14
1The interface f of → ten-way valve 14
1The interface g of → ten-way valve 14
1The interface e of → ten-way valve 14
1The interface d of → ten-way valve 14
1The interface a of → quantity tube 12 → ten-way valve 14
1The interface j of → ten-way valve 14
1→ chromatogram pre-column 15.The work of completion quantitative sample injection.
Wherein, the workflow of said thermal conductivity detector (TCD) detection is following:
(1) six-way valve 2 18 is logical with six-way valve one 16 solid lines, the obstructed state of dotted line, the interface c of pre-separation column chromatography pre-column 15 → six-way valve 1
2The interface b of → six-way valve 1
2The interface c of → six-way valve 2 18
3The interface b of → six-way valve 2 18
3→ thermal conductivity detector (TCD) TCD.
(2) six-way valve 2 18 is logical with six-way valve one 16 dotted lines, the obstructed state of solid line, the interface f of pre-separation post 15 → six-way valve 1
2The interface e of → six-way valve 1
2The interface a of → six-way valve 1
2The interface b of → six-way valve 1
2The interface c of → six-way valve 2 18
3The interface b of → six-way valve 2 18
3→ thermal conductivity detector (TCD) TCD.
3.PDD detecting device detects
(1) six-way valve 2 18 is logical with six-way valve one 16 solid lines, the obstructed state of dotted line.
1) the interface f of pre-separation post 15 → six-way valve 1
2The interface a of → six-way valve 1
2The interface e of → six-way valve 1
2The interface d of → six-way valve 1
2→ chromatographic column post 2 17 → pulsed discharge helium ion detector PDD;
2) the interface f of pre-separation post 15 → six-way valve 2 18
3The interface a of → six-way valve 2 18
3The interface e of → six-way valve 2 18
3The interface d of → six-way valve 2 18
3→ chromatographic column post 3 19 → pulsed discharge helium ion detector PDD.
(2) six-way valve 2 18 is logical with six-way valve one 16 dotted lines, the obstructed state of solid line.
1) the interface c of pre-separation post 15 → six-way valve 1
2The interface d of → six-way valve 1
2→ chromatographic column post 2 17 → pulsed discharge helium ion detector PDD.
2) the interface f of pre-separation post 15 → six-way valve 1
2The interface a of → six-way valve 1
2The interface b of → six-way valve 1
2The interface c of → six-way valve 2 18
3The interface d of → six-way valve 2 18
3→ chromatographic column post 3 19 → pulsed discharge helium ion detector PDD.
In the present invention; The component of the component of said chromatogram pre-column 15 and said chromatographic column 2 17 can be consistent; Also can select different; The component of the preferred said chromatogram pre-column 15 of present embodiment is consistent with the component of said chromatographic column two; Its component is G-Pro, and the component of said chromatographic column 3 19 is 13X.Said chromatogram pre-column 15 is used for all components of initial gross separation sulfur hexafluoride electrical equipment failure gas, and said chromatographic column 3 19 is used to separate O
2, N
2, CO, CO
2, NO
2, and said chromatographic column 2 17 further separation of C F
4, C
2F
6, C
3F
8, H
2S, SO
2, SOF
2, SO
2F
2, S
2F
10O, SF
6Etc. component.
For the ease of rotating said ten-way valve 14; Said six-way valve 1 and said six-way valve 2 18; Preferred its of present embodiment connects drive unit respectively; Said drive unit comprises and said ten-way valve 14; Wheelwork and cylinder that said six-way valve 1 and said six-way valve 2 18 connect respectively; Three said wheelworks respectively with said ten-way valve 14; Said six-way valve 1 and said six-way valve 2 18 connect; Promoting said wheelwork through said cylinder rotates; To change said ten-way valve 14; The conducting direction of said six-way valve 1 and said six-way valve 2 18; Even dotted line among Fig. 1; The marker location conversion conducting of solid line; When sample introduction gas; The position conducting that the solid line conducting indicates; And when separating appearance gas; Cylinder promotes to make said ten-way valve 14; Said six-way valve 1 and said six-way valve 2 19 rotate; Become the position conducting that dotted line indicates, carry out kind gas and separate.
Preferably; The pick-up unit that the present invention is used to detect the sulfur hexafluoride electrical equipment failure gas includes tail blowpipe 20, reference draft tube 21 and purification plant 22; Said tail blowpipe 20 is connected with pulsed discharge helium ion detector PDD; Said reference draft tube 21 is connected with said thermal conductivity detector (TCD) TCD, and said purification plant 22 is located between said six-way valve 1 and the said chromatographic column 2 17.
As shown in Figure 2, it has illustrated the present invention to O
2, N
2, CF
4, SF
6, C
3F
8, SO
2F
2, SOF
2, SO2, S
2OF
10Deng the detection spectrogram of material, its peak value is followed successively by O
2, N
2, CF
4, SF
6, C
3F
8, SO
2F
2, SOF
2, SO2, S
2OF
10Peak value; As shown in Figure 3, it has illustrated the present invention to O
2, N
2, CF
4, C
2F
6, C
3F
8, SO
2F
2Deng the detection spectrogram of material, its peak value is followed successively by O
2, N
2, CF
4, C
2F
6, C
3F
8, SO
2F
2Peak value; In Fig. 2 and Fig. 3, its horizontal ordinate indicates time, and unit be minute, its ordinate sign peak value, and unit is μ V.
Be specific embodiment of the present invention only below, do not limit protection scope of the present invention with this; Any replacement and the improvement on the basis of not violating the present invention's design, done all belong to protection scope of the present invention.
Claims (9)
1. a pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas is characterized in that, it includes thermal conductivity detector (TCD), tripping device and pulsed discharge helium ion detector;
Said tripping device includes helium inlet pipe, separative element one, separative element two and separative element three; Said helium inlet pipe is connected with said separative element one; Said separative element one is connected with said separative element two and said separative element three respectively; Said separative element three is connected with said thermal conductivity detector (TCD) and said pulsed discharge helium ion detector, and said separative element two is connected with said separative element three;
Said separative element one comprises that a kind gas inlet pipe, quantity tube, appearance gas go out pipe, ten-way valve and chromatogram pre-column; Said appearance gas inlet pipe, said quantity tube, said ten-way valve and said appearance gas go out pipe and connect successively, and said helium inlet pipe, said ten-way valve and said chromatogram pre-column connect successively;
Said separative element two comprises six-way valve one and chromatographic column two, and said chromatogram pre-column, said six-way valve one and said chromatographic column two connect successively;
Said separative element three comprises six-way valve two and chromatographic column three, and said chromatogram pre-column is connected with said six-way valve two, and said six-way valve one is connected with said six-way valve two, and said six-way valve two is connected with said chromatographic column three successively;
Wherein, Control said ten-way valve, said six-way valve one and said six-way valve two and rotate and make it respectively when sample introduction, be in different conducting states when separating, make separation component get into said separative element one, said separative element two or said separative element three respectively.
2. the pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas as claimed in claim 1 is characterized in that, the component of said chromatogram pre-column is G-Pro.
3. the pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas as claimed in claim 1 is characterized in that, the component of said chromatographic column two is G-Pro.
4. the pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas as claimed in claim 1 is characterized in that, the component of said chromatographic column three is 13X.
5. the pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas as claimed in claim 1; It is characterized in that; Said tripping device also comprises at least one drive unit; Said drive unit is connected with said ten-way valve, said six-way valve one and said six-way valve two, drives said ten-way valve, said six-way valve one and said six-way valve two and rotates to change its conducting direction.
6. the pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas as claimed in claim 5; It is characterized in that; Said tripping device includes three drive units; Said drive unit comprises wheelwork and the cylinder that is connected respectively with said ten-way valve, said six-way valve one and said six-way valve two, and three said wheelworks are connected with said ten-way valve, said six-way valve one and said six-way valve two respectively.
7. the pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas as claimed in claim 1 is characterized in that, said pulsed discharge helium ion detector is connected with the tail blowpipe.
8. the pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas as claimed in claim 1 is characterized in that, said pulsed discharge helium ion detector is connected with the reference draft tube.
9. the pick-up unit that is used to detect the sulfur hexafluoride electrical equipment failure gas as claimed in claim 1 is characterized in that, is connected with purification plant between said six-way valve one and the said chromatographic column two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110247279XA CN102353737A (en) | 2011-08-26 | 2011-08-26 | Detection device for detecting sulfur hexafluoride electrical equipment fault gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110247279XA CN102353737A (en) | 2011-08-26 | 2011-08-26 | Detection device for detecting sulfur hexafluoride electrical equipment fault gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102353737A true CN102353737A (en) | 2012-02-15 |
Family
ID=45577341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110247279XA Pending CN102353737A (en) | 2011-08-26 | 2011-08-26 | Detection device for detecting sulfur hexafluoride electrical equipment fault gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102353737A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628846A (en) * | 2012-04-19 | 2012-08-08 | 杭州克柔姆色谱科技有限公司 | Gas chromatography detection system and method for analyzing trace impurities in ultrahigh pure gas |
| CN102967671A (en) * | 2012-11-22 | 2013-03-13 | 湖南省电力公司科学研究院 | Device and method for detecting sulfur hexafluoride gas in oil immersed transformer |
| CN103048597A (en) * | 2012-12-24 | 2013-04-17 | 广东电网公司电力科学研究院 | Method for monitoring surface discharge of organic resin insulating medium in sulfur hexafluoride (SF6) electric equipment by taking CS2 (carbon disulfide) as characteristic gas |
| CN103336070A (en) * | 2013-06-17 | 2013-10-02 | 广东电网公司电力科学研究院 | Detection device and method for quantitatively detecting composition of sulfur-containing fault gas in sulfur hexafluoride electrical equipment |
| CN103604897A (en) * | 2013-10-31 | 2014-02-26 | 陕西延长石油(集团)有限责任公司研究院 | On-line multidimensional gas chromatographic analysis device universal for low carbon catalytic conversion reaction |
| CN104267132A (en) * | 2014-08-26 | 2015-01-07 | 广东电网公司电力科学研究院 | Chromatography method for detecting SF6 decomposition products |
| CN104297382A (en) * | 2014-11-06 | 2015-01-21 | 上海华爱色谱分析技术有限公司 | Gas chromatograph for analyzing trace impurities in electronic grade hexafluoroethane |
| CN106370764A (en) * | 2016-10-31 | 2017-02-01 | 广东电网有限责任公司电力科学研究院 | Refilling type sulfur hexafluoride decomposition product chromatography online detector |
| CN108896691A (en) * | 2018-08-07 | 2018-11-27 | 朗析仪器（上海）有限公司 | One kind is for detecting SF6The multiple-dimension gas phase chromatographic device of decomposition product full constituent |
| CN109459510A (en) * | 2018-11-14 | 2019-03-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of more helium ion detection systems |
| CN109490447A (en) * | 2019-01-11 | 2019-03-19 | 国网安徽省电力有限公司电力科学研究院 | A kind of sulfur hexafluoride gas mixture mixing ratio chromatographic detection apparatus |
| CN110927295A (en) * | 2019-11-28 | 2020-03-27 | 福建亿榕信息技术有限公司 | Long-term uninterrupted separation system for sulfide gas in GIS gas chamber |
| CN111766018A (en) * | 2020-05-25 | 2020-10-13 | 国网上海市电力公司 | Method for judging internal leakage of sulfur hexafluoride in oil gas casing |
| US10900940B2 (en) | 2016-10-31 | 2021-01-26 | Electric Power Research Institute Of Guangdong Power Gird Co., Ltd. | Refilling-type online chromatographic detector for sulphur hexafluoride decomposition products |
| CN114152695A (en) * | 2021-11-30 | 2022-03-08 | 国网黑龙江省电力有限公司电力科学研究院 | Method and system for analyzing component content of mixed gas in gas insulated combined electrical system |
| CN115078580A (en) * | 2022-06-21 | 2022-09-20 | 广东电网有限责任公司广州供电局 | High-voltage XLPE cable buffer layer defect detection method based on characteristic gas |
-
2011
- 2011-08-26 CN CN201110247279XA patent/CN102353737A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628846B (en) * | 2012-04-19 | 2014-04-23 | 杭州克柔姆色谱科技有限公司 | Gas chromatography detection system and method for analyzing trace impurities in ultrahigh pure gas |
| CN102628846A (en) * | 2012-04-19 | 2012-08-08 | 杭州克柔姆色谱科技有限公司 | Gas chromatography detection system and method for analyzing trace impurities in ultrahigh pure gas |
| CN102967671A (en) * | 2012-11-22 | 2013-03-13 | 湖南省电力公司科学研究院 | Device and method for detecting sulfur hexafluoride gas in oil immersed transformer |
| CN102967671B (en) * | 2012-11-22 | 2014-06-11 | 湖南省电力公司科学研究院 | Device and method for detecting sulfur hexafluoride gas in oil immersed transformer |
| CN103048597A (en) * | 2012-12-24 | 2013-04-17 | 广东电网公司电力科学研究院 | Method for monitoring surface discharge of organic resin insulating medium in sulfur hexafluoride (SF6) electric equipment by taking CS2 (carbon disulfide) as characteristic gas |
| CN103048597B (en) * | 2012-12-24 | 2016-03-02 | 广东电网公司电力科学研究院 | With CS 2for the method for insulating organic resin dielectric surface electric discharge in characteristic gas monitoring sulfur hexafluoride electrical equipment |
| CN103336070B (en) * | 2013-06-17 | 2015-09-16 | 广东电网公司电力科学研究院 | The pick-up unit of sulfur-bearing failure gas component and method in a kind of quantitative detection sulfur hexafluoride electrical equipment |
| CN103336070A (en) * | 2013-06-17 | 2013-10-02 | 广东电网公司电力科学研究院 | Detection device and method for quantitatively detecting composition of sulfur-containing fault gas in sulfur hexafluoride electrical equipment |
| CN103604897A (en) * | 2013-10-31 | 2014-02-26 | 陕西延长石油(集团)有限责任公司研究院 | On-line multidimensional gas chromatographic analysis device universal for low carbon catalytic conversion reaction |
| CN104267132B (en) * | 2014-08-26 | 2016-08-24 | 广东电网公司电力科学研究院 | Detection SF6the chromatogram analysis method of catabolite |
| CN104267132A (en) * | 2014-08-26 | 2015-01-07 | 广东电网公司电力科学研究院 | Chromatography method for detecting SF6 decomposition products |
| CN104297382A (en) * | 2014-11-06 | 2015-01-21 | 上海华爱色谱分析技术有限公司 | Gas chromatograph for analyzing trace impurities in electronic grade hexafluoroethane |
| CN104297382B (en) * | 2014-11-06 | 2015-12-02 | 上海华爱色谱分析技术有限公司 | For the gas chromatograph of Analysis of Micro-amount Impurities In Liquid in electron level perfluoroethane |
| US10900940B2 (en) | 2016-10-31 | 2021-01-26 | Electric Power Research Institute Of Guangdong Power Gird Co., Ltd. | Refilling-type online chromatographic detector for sulphur hexafluoride decomposition products |
| CN106370764A (en) * | 2016-10-31 | 2017-02-01 | 广东电网有限责任公司电力科学研究院 | Refilling type sulfur hexafluoride decomposition product chromatography online detector |
| CN106370764B (en) * | 2016-10-31 | 2018-08-07 | 广东电网有限责任公司电力科学研究院 | A kind of recharging type sulfur hexafluoride decomposition product chromatography on-line detector |
| CN108896691A (en) * | 2018-08-07 | 2018-11-27 | 朗析仪器（上海）有限公司 | One kind is for detecting SF6The multiple-dimension gas phase chromatographic device of decomposition product full constituent |
| CN109459510A (en) * | 2018-11-14 | 2019-03-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of more helium ion detection systems |
| CN109490447A (en) * | 2019-01-11 | 2019-03-19 | 国网安徽省电力有限公司电力科学研究院 | A kind of sulfur hexafluoride gas mixture mixing ratio chromatographic detection apparatus |
| CN109490447B (en) * | 2019-01-11 | 2023-11-17 | 国网安徽省电力有限公司电力科学研究院 | Sulfur hexafluoride mixed gas mixing ratio chromatographic detection device |
| CN110927295A (en) * | 2019-11-28 | 2020-03-27 | 福建亿榕信息技术有限公司 | Long-term uninterrupted separation system for sulfide gas in GIS gas chamber |
| CN111766018A (en) * | 2020-05-25 | 2020-10-13 | 国网上海市电力公司 | Method for judging internal leakage of sulfur hexafluoride in oil gas casing |
| CN114152695A (en) * | 2021-11-30 | 2022-03-08 | 国网黑龙江省电力有限公司电力科学研究院 | Method and system for analyzing component content of mixed gas in gas insulated combined electrical system |
| CN114152695B (en) * | 2021-11-30 | 2023-04-28 | 国网黑龙江省电力有限公司电力科学研究院 | Analysis method and analysis system for component content of mixed gas in gas insulation combined electrical system |
| CN115078580A (en) * | 2022-06-21 | 2022-09-20 | 广东电网有限责任公司广州供电局 | High-voltage XLPE cable buffer layer defect detection method based on characteristic gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102353737A (en) | Detection device for detecting sulfur hexafluoride electrical equipment fault gas | |
| US7343779B1 (en) | High performance, hand-held gas chromatograph, method and system | |
| EP2435166B1 (en) | Direct atmospheric pressure sample analyzing system | |
| CN103069538A (en) | Mass spectrometer with soft ionizing glow discharge and conditioner | |
| CN110187037A (en) | The measurement system and method for 57 kinds of volatile organic contents in surrounding air | |
| CN103336070B (en) | The pick-up unit of sulfur-bearing failure gas component and method in a kind of quantitative detection sulfur hexafluoride electrical equipment | |
| CN104076102B (en) | Mobile insulation dissolved gas analysis instrument and detection method thereof | |
| CN101995532A (en) | Internal discharge detection method of sulfur hexafluoride gas insulation equipment | |
| CN102590379B (en) | Method for online-analyzing organic monomer chlorine or bromine isotope and based on chemical ionization | |
| CN112816436A (en) | Spectrum-mass spectrum combined device and detection method | |
| CN104458986A (en) | Gas chromatography multichannel sample introduction system and realized atmosphere detection method thereof | |
| Bings et al. | Time-of-flight mass spectrometry as a tool for speciation analysis | |
| CN114019040A (en) | System for detecting gas impurities in sulfur hexafluoride | |
| US20140370613A1 (en) | Atmospheric Pressure Chemical Ionization Detection | |
| CN108627604A (en) | One kind is for detecting VOCs in ambient air full constituent fexible unit | |
| CN203798779U (en) | Gas chromatograph and ion mobility spectrometer combined equipment | |
| Sielemann et al. | IMS with non radioactive ionization sources suitable to detect chemical warfare agent simulation substances | |
| CN202305489U (en) | Chromatographic instrument for detecting failure of SF6 electric equipment | |
| CN203490201U (en) | Gas chromatograph with plasma emission detector | |
| He et al. | Nebulization dielectric barrier discharge ionization mass spectrometry: rapid and sensitive analysis of acenaphthene | |
| WO2023218694A1 (en) | Greenhouse gas measuring method and measuring device | |
| Mabrouki et al. | Improving FAIMS sensitivity using a planar geometry with slit interfaces | |
| CN203405450U (en) | Detection device for quantitatively detecting sulfur-containing fault gas components in sulphur hexafluoride electrical equipment | |
| CN104359988B (en) | A kind of gas-chromatography detection method of new mineral dissolved gas analysis | |
| CN102879492A (en) | System and method for quantitatively detecting impurities in sulfur hexafluoride gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120215 |