CN105241987A - Automatic analyzer for dissolved gas in insulating oil - Google Patents
Automatic analyzer for dissolved gas in insulating oil Download PDFInfo
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- CN105241987A CN105241987A CN201510610703.0A CN201510610703A CN105241987A CN 105241987 A CN105241987 A CN 105241987A CN 201510610703 A CN201510610703 A CN 201510610703A CN 105241987 A CN105241987 A CN 105241987A
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Abstract
The invention relates to an automatic analyzer for dissolved gas in insulating oil. The gas analyzer comprises a degassing mechanism, an autoinjection mechanism, a chromatogram mechanism and a circuit control part, wherein the autoinjection mechanism comprises a degassing disc, a degassing motor, a background light source and a camera, the degassing motor drives the degassing disc to rotate, N vertical syringe mounting through holes are uniformly arranged in the circumference of the upper surface of the degassing disc, and the background light source and the camera are used for detecting the volume of insulating oil in syringes; the autoinjection mechanism comprises a gas feeding motor, a belt, a gas feeding head support, a gas feeding head and a push rod motor, the gas feeding motor drives the gas feeding head support to move up and down via the belt, and the gas feeding head is mounted on the gas feeding head support; and when the degassing disc rotates to a set position, the upper end of a to-be-detected syringe on the degassing disc just corresponds to the gas feeding head, the lower end of the to-be-detected syringe just corresponds to the upper end part of a push rod of the push rod motor, and a hollow syringe needle in the gas feeding head is connected with the chromatogram mechanism. The automatic analyzer has a high automation degree and small errors.
Description
(1), technical field:
The present invention relates to a kind of gas analyzer, particularly dissolved gas analysis instrument in a kind of full-automatic dielectric oil.
(2), background technology:
Along with China's industry and modernization construction paces strengthen year by year, the demand of electric power is also grown with each passing day, increasing high voltage substation comes into operation, in order to ensure safety, the even running of transformer station, except daily inspection is safeguarded, regular extraction transformer oil carries out gas composition analysis and is absolutely necessary.To the detection method mainly vapor-phase chromatography of transformer insulation oil, after being fetched from scene by insulating oil, add certain Balance Air, then put into oscillator device and carry out degassed.After degassed end, the mixed gas deviate from is sent into separation and the detection that gas chromatography apparatus carries out component, is judged the quality of running state of transformer by the concentration level of different component.
At present, the dielectric oil chromatographic analysis equipment on market all cannot accomplish automatical analysis, can only be manual add Balance Air, manually put into oscillator device degassed, manually to chromatography column feed materials etc.Because a large amount of work all needs manually to complete, not only cause labour intensity comparatively large, and have higher requirement to the technical of operator, careless slightlyly will cause that the repeatability of analysis result is low, poor accuracy, even there will be operation failure, the problem needing secondary to get oil to carry out detecting.Market is badly in need of a insulating oil chromatogram checkout equipment that can be completely achieved robotization, the error produced to avoid manual operation, both can free manpower, can increase work efficiency again simultaneously.
(3), summary of the invention:
The technical problem to be solved in the present invention is: provide dissolved gas analysis instrument in a kind of full-automatic dielectric oil, and this analyser automaticity is high, error is little.
Technical scheme of the present invention: dissolved gas analysis instrument in a kind of full-automatic dielectric oil, containing deaerating mechanism, auto injection mechanism, chromatogram mechanism and circuit control part, containing degassed dish in deaerating mechanism, degassed motor, degassed dish optoelectronic switch, background light source and camera, degassed dish is a horizontally disposed rotating disk, the axle of degassed dish is connected with the axle of degassed motor, the upper surface periphery of degassed dish is evenly provided with N number of vertical syringe and settles through hole, each syringe settles the bottom of through hole to be connected with a vertical fixing pipe box, syringe settles through hole to be communicated with fixing pipe box inside, the bottom of fixing pipe box is provided with a piston rod through hole, when the piston rod end of syringe is vertically placed in syringe arrangement through hole down, a part above for syringe needle tube is settled through hole from syringe and is exposed, the piston rod of syringe stretches out from piston rod through hole, stationary pipes cover has guiding and fixing effect, when syringe puts into fixing pipe box, can ensure that the placement direction of each syringe is consistent, an integral multiple casting lug thereon of N is outwards evenly stretched out in the side of degassed dish, and degassed dish optoelectronic switch is located at the side of degassed dish, and when degassed dish rotates, casting lug thereon passes between the transmitting terminal and receiving end of degassed dish optoelectronic switch, background light source is located at above the upper surface of degassed dish, camera is arranged on above the side of degassed dish, background light source is just to the camera lens of camera, when degassed dish turns to desired location, a syringe on degassed dish settles the tested syringe placed in through hole just in time between background light source and camera, degassed motor, degassed dish optoelectronic switch, background light source are connected with circuit control part with camera, wherein, and the USB port of main control computer in camera connection circuit control section.
Containing organic frame in auto injection mechanism, add Pneumatic generator, belt, upright guide rail, inflating valve support, inflating valve, inflating valve optoelectronic switch and push-rod electric machine, frame contains horizontal support body and vertical frame body, adding Pneumatic generator is fixed on horizontal support body, upright guide rail is fixed in vertical frame body, vertical frame body is also fixed with a rotating shaft, this rotating shaft is parallel with the axle adding Pneumatic generator and be positioned at directly over aerating motor shaft, add the axle of Pneumatic generator by this axis of rotation of belt drive, the rear surface of inflating valve support is fixedly connected with the outside surface of belt, upright guide rail is arranged in the guide-track groove on inflating valve support rear surface, during aerating electric motor starting, belt drive inflating valve support moves up and down along upright guide rail, inflating valve is arranged on the lower surface of inflating valve support, inflating valve is positioned at the top of degassed dish periphery, push-rod electric machine is vertically arranged on the below of degassed dish periphery, inflating valve is corresponding up and down with the push rod upper end of push-rod electric machine, when degassed dish turns to desired location, tested syringe on degassed dish correct corresponding with inflating valve, correct corresponding with the push rod upper end of push-rod electric machine under this tested syringe, the hollow needle vertically arranged is contained at the middle part of inflating valve, push-rod electric machine is used for the gas of deviating from tested syringe to push in chromatogram mechanism by hollow needle, inflating valve optoelectronic switch is located in vertical frame body, and when inflating valve support moves up and down, the convex sheet on inflating valve support is passed between the transmitting terminal and receiving end of inflating valve optoelectronic switch, inflating valve optoelectronic switch, add Pneumatic generator and be connected with circuit control part with push-rod electric machine,
Containing gas pressure maintaining valve in chromatogram mechanism, aerating pressure maintaining valve, six-way valve, first three-way solenoid valve, second three-way solenoid valve, aerating electromagnetism two-way valve, quantity tube, first vapour lock pipe, first threeway and chromatogram detect gas circuit, Standard Gases enters the P mouth of the first three-way solenoid valve by gas pressure maintaining valve, the A mouth of the first three-way solenoid valve is communicated with second mouthful of six-way valve, nitrogen enters the entrance of aerating pressure maintaining valve and the nitrogen inlet of chromatogram detection gas circuit respectively by the first threeway, the outlet of aerating pressure maintaining valve is successively by aerating electromagnetism two-way valve, first vapour lock pipe is communicated with the P mouth of the second three-way solenoid valve, the O mouth of the second three-way solenoid valve is in communication with the outside, the A mouth of the second three-way solenoid valve is communicated with the O mouth of the first three-way solenoid valve, the two ends of quantity tube are communicated with the 4th mouthful with the first of six-way valve respectively, the 6th mouthful of six-way valve is communicated with the 5th mouthful of two air-path interfaces detecting gas circuit respectively with chromatogram, the 3rd mouthful of six-way valve is communicated with the hollow needle in inflating valve, when six-way valve is operated in the first state: the first of six-way valve is communicated with second mouthful, the 3rd mouthful of six-way valve is communicated with the 4th mouthful, and the 5th mouthful of six-way valve is communicated with the 6th mouthful, when six-way valve is operated in the second state: the first of six-way valve is communicated with the 6th mouthful, second mouthful of six-way valve is communicated with the 3rd mouthful, and the 4th mouthful of six-way valve is communicated with the 5th, when the first three-way solenoid valve is opened: the A mouth of the first three-way solenoid valve is communicated with P mouth, when the first three-way solenoid valve is closed: the A mouth of the first three-way solenoid valve is communicated with O mouth, when the second three-way solenoid valve is opened: the A mouth of the second three-way solenoid valve is communicated with P mouth, when the second three-way solenoid valve is closed: the A mouth of the second three-way solenoid valve is communicated with O mouth, six-way valve, the first three-way solenoid valve, the second three-way solenoid valve, aerating electromagnetism two-way valve and chromatogram detect gas circuit and are connected with circuit control part, gas pressure maintaining valve and aerating pressure maintaining valve are for adjusting gaseous tension.
Also containing having heaters and fair water fin in deaerating mechanism, well heater is located at the side of degassed dish, and fair water fin is located between well heater and degassed dish, and fair water fin is the plate that one piece of top tilts to well heater, and fair water fin is provided with the louver of M bar level; Well heater is connected with circuit control part; The heat that well heater sends evenly is transported to degassed Pan Chu after the louver on fair water fin, and the homogeneous temperature on degassed dish is suitable for; Degassed motor is servomotor, and degassed dish is arranged on degassed motor.
N is 6 ~ 30, and the side of degassed dish is provided with two degassed dish optoelectronic switches, degassed dish optoelectronic switch can between realize the location of degassed dish.
Also containing push rod optoelectronic switch in auto injection mechanism, the push rod side of push-rod electric machine is fixedly connected with a vertical gangbar by horizontal web member, when gangbar and push rod synchronously move up and down, horizontal casting lug thereon in gangbar passes between the transmitting terminal and receiving end of push rod optoelectronic switch, controls the path increment of push-rod electric machine with this; Push rod optoelectronic switch is connected with circuit control part.
Push rod optoelectronic switch contains the upper optoelectronic switch of push rod and the next optoelectronic switch of push rod, and the upper optoelectronic switch of push rod is positioned at the top of the next optoelectronic switch of push rod, and the upper optoelectronic switch of push rod is connected with circuit control part with the next optoelectronic switch of push rod.
Inflating valve optoelectronic switch contains the upper optoelectronic switch of inflating valve and the next optoelectronic switch of inflating valve, the upper optoelectronic switch of inflating valve is positioned at the top of the next optoelectronic switch of inflating valve, and the upper optoelectronic switch of inflating valve is connected with circuit control part with the next optoelectronic switch of inflating valve.
Inflating valve contains the hollow needle, needle holder, positioning seat, the first internal thread fixed cover, the second internal thread fixed cover, reference column and the spring that vertically arrange, needle holder is a horizontally disposed disk, the upper face center of needle holder is provided with a vertical air hole, the upper end of hollow needle is fixed on the lower surface central authorities of needle holder, hollow needle inside is communicated with air hole, positioning seat is the hollow cylinder that an end face periphery is provided with that a circle protrudes limit, the profile of the first internal thread fixed cover is inverted bottle-cover-shape, the bottom surface central authorities of the first internal thread fixed cover are provided with one for the manhole through positioning seat bottom, the internal diameter of the first internal thread fixed cover is identical with the external diameter of needle holder, internal thread on first internal thread fixed cover mates with the external thread on needle holder lateral surface, the lower surface of needle holder and the end face of positioning seat are linked together by the first internal thread fixed cover, hollow needle enters positioning seat inside through the through hole of positioning seat end face central authorities, reference column and spring are located at positioning seat inside, spring is vertically arranged on the top in positioning seat, reference column is arranged on the bottom in positioning seat, reference column is that a upper end face periphery is provided with the hollow cylinder that a circle protrudes limit, hollow needle is successively through the middle part of spring, reference column inside is entered after the through hole of reference column end face central authorities, the external diameter of reference column end face is identical with the internal diameter of positioning seat, the profile of the second internal thread fixed cover is inverted bottle-cover-shape, the bottom surface central authorities of the second internal thread fixed cover are provided with one for the manhole through reference column bottom, second internal thread fixed cover is connected with the lateral surface bottom of positioning seat by screw thread, the bottom of reference column passes from the manhole of the second internal thread fixed cover bottom surface, the lower end internal orifice of reference column is conical mouth, the 3rd mouthful of six-way valve is communicated with hollow needle by the air hole in needle holder.
Chromatogram detects in gas circuit containing the first pressure maintaining valve, the second pressure maintaining valve, the 3rd pressure maintaining valve, flowmeter, the 4th threeway, the 5th threeway, the 6th threeway, the 7th threeway, the 8th threeway, the first variable valve, the second variable valve, the 3rd variable valve, the second vapour lock pipe, the 3rd vapour lock pipe, the first chromatographic column, the second chromatographic column, the 6th chromatographic column, TCD detecting device, the first fid detector, the second fid detector and nickel accelerant methane reborner, nitrogen enters the entrance of aerating pressure maintaining valve and the entrance of the first pressure maintaining valve respectively by the first threeway, the exit of the first pressure maintaining valve is provided with flowmeter, the outlet of the first pressure maintaining valve is communicated with the entrance of the first variable valve with the 6th mouthful of six-way valve respectively by the 4th threeway, the 5th mouthful of six-way valve is communicated with the entrance of the first chromatographic column with the second chromatographic column respectively by the 7th threeway, the outlet of the first chromatographic column is communicated with an entrance of the 8th threeway by the gage beam of TCD detecting device, the outlet of the second chromatographic column is communicated with the gas entrance of the first fid detector, the outlet of the first variable valve is communicated with the entrance of the 6th chromatographic column, the outlet of the 6th chromatographic column is in communication with the outside by the reference arm of TCD detecting device, hydrogen is communicated with the entrance of the 5th threeway by the second pressure maintaining valve, an outlet of the 5th threeway is communicated with by the hydrogen inlet of the second variable valve with the first fid detector, another outlet of 5th threeway is communicated with by the 3rd variable valve another entrance with the 8th threeway, the outlet of the 8th threeway is communicated with the entrance of nickel accelerant methane reborner, and the outlet of nickel accelerant methane reborner is communicated with the gas entrance of the second fid detector, air is communicated with the entrance of the 6th threeway by the 3rd pressure maintaining valve, two outlets of the 6th threeway are communicated with the entrance of the second vapour lock pipe with the 3rd vapour lock pipe respectively, the outlet of the second vapour lock pipe is communicated with the air intake of the first fid detector, the outlet of the 3rd vapour lock pipe is communicated with the air intake of the second fid detector, and the exhausr port of the first fid detector and the second fid detector is all in communication with the outside, TCD detecting device, the first fid detector, the second fid detector are connected with circuit control part with nickel accelerant methane reborner.
Deaerating mechanism realizes the degassed of insulating oil, the functions such as it possesses heating, oil sample is fixed, vibration, well heater in deaerating mechanism provides suitable temperature for degassed, the syringe that oil sample is housed is fixed on degassed dish, when oil sample needs degassed, the degassed dish of degassed driven by motor carries out round vibration at a high speed, the oil sample in syringe and Balance Air is formed and acutely agitates, to reach degassed object.In addition, degassed module can also position running, and when needing to add Balance Air, degassed motor can drive degassed dish to carry out directed microrunning, and mechanism coordinates with auto injection, completes the aerating to oil sample or exhaust.
The Main Function of auto injection mechanism has been the action such as aerating and sample introduction to oil sample, when carrying out aerating or sampling action, first by camera, intelligent decision is carried out to the information of syringe, then by adding Pneumatic generator, gas is added in oil sample, when needing sample introduction, then by push-rod electric machine the mixed gas deviate from pushed in chromatogram mechanism and detect.
First camera identifies numbering on syringe whether in the sample introduction list of workstation, in this way, then judge whether to add Balance Air to syringe according to Head space principle, camera judges the gas volume at syringe top, if this volume is less than preset vol, then need to add Balance Air, otherwise, do not need aerating.
The Main Function of chromatogram mechanism has been the detection to sample introduction gas, component in mixed gas is carried out a point separation by chromatographic column, its outlet connects each detecting device, and the single component after being separated enters detecting device successively and detects, and is finally exported by the signal intensity of collection.The effect of nickel accelerant methane reborner CO and CO2 component is converted into the CH4 component that can be detected by fid detector.
In this full-automatic dielectric oil, the workflow of dissolved gas analysis instrument is as follows:
1, device power-up, stable:
Beat power supply and the auxiliary work station of dissolved gas analysis instrument in full-automatic dielectric oil, the various sources of the gas needed for connection.Each several part starts to heat up according to design temperature, after temperature reaches, by the first fid detector and the igniting of the second fid detector, TCD detecting device is added bridge stream, after baseline stability, namely enters steady state (SS).
2, automatically enter standard specimen:
The workstation of circuit control part is clicked standard specimen collection, then analyser starts the analysis automatically carrying out standard specimen.At this moment, the first three-way solenoid valve is opened, and gas enters into six-way valve by gas pressure maintaining valve, the first three-way solenoid valve, enter quantity tube through six-way valve again, quantity tube is rinsed, and final emptying by hollow needle, after certain hour, quantity tube, through fully rinsing, is filled with pure gas; Now, six-way valve switches, first three-way solenoid valve is closed, gas is admitted in chromatogram detection gas circuit by quantity tube and detects, gas detects in gas circuit in chromatogram and is separated into single component by mixed gas, and enters detecting device and detect, the output signal change of circuit control part acquisition testing device, and form chromatogram spectrogram, treat the analysis completing whole standard specimen after all components all detect.In the process that standard specimen gathers, second three-way solenoid valve is opened, first three-way solenoid valve is closed, carrier gas enters into six-way valve by aerating pressure maintaining valve, aerating electromagnetism two-way valve, the second three-way solenoid valve, the first three-way solenoid valve, enter quantity tube through six-way valve again, quantity tube to be rinsed and final emptying by hollow needle, after a period of time, second three-way solenoid valve is closed, and completes gas circuit cleaning.Can make to remain without sample introduction last time in quantity tube by the cleaning of air-flow, can not pollute next sample introduction.
3, auto injection product:
First the syringe that oil sample is housed is put into degassed dish, in the workstation of circuit control part, input needs the sample number into spectrum of sample introduction, clicks and determines that post analysis instrument carries out sample analysis automatically.Sample analysis can be subdivided into add Balance Air, degassed and sample introduction three flow processs of vibrating:
Add Balance Air flow process: the cleaning first carrying out a gas circuit, prevent gas circuit from polluting, cleaning process is consistent with when automatically entering standard specimen.After cleaning terminates, degassed motor can directionally microrunning, and when the casting lug thereon on degassed dish moves to degassed dish optoelectronic switch, degassed dish photoelectric switching signal change, degassed motor is out of service, completes one-time positioning.Now, tested syringe and hollow needle, push-rod electric machine are on same vertical axis, and with background light source and camera on same level axis, background light source obtains electroluminescence, and camera carries out Intelligent Recognition.Location is then continued as current anchor point does not meet gas-putting-in condition, then start to add Balance Air as met gas-putting-in condition, when adding Balance Air, aerating motor rotation, belt is driven to operate up and down, thus hollow needle is also run up and down, hollow needle first can run down to the next optoelectronic switch place of inflating valve, now hollow needle just in time inserts about about 2mm in tested syringe, then the second three-way solenoid valve is opened, carrier gas enters in tested syringe according to the hollow needle that flows through during cleaning, after certain hour, the second three-way solenoid valve is closed, hollow needle moves to the upper optoelectronic switch place of inflating valve, camera is taken pictures again, identify whether the gas volume after aerating meets standard, as met then aerating success, do not meet and then continue aerating, carry out at most three aeratings, still do not meet then circuit control part to judge aerating failure and stop flow process.After completing an aerating, degassed dish can continue location running, repeats the process identifying aerating, terminates until add Balance Air flow process.
To vibrate degassed flow process: degassed motor carries out rotating action at a high speed, drive between the oil sample in syringe and Balance Air and produce violent vibration, to reach degassed object.After certain hour, degassed motor shuts down, then after stablizing certain hour, degassed flow process of vibrating terminates.
Sample introduction flow process: degassed motor first carries out location running at a slow speed, carries out Intelligent Recognition judgement after arriving anchor point by camera to current anchor point, then continuing location as do not met sampling condition, then carrying out sample introduction as met sampling condition; During sample introduction, aerating motor rotation, make hollow needle run down to the next optoelectronic switch place of inflating valve, hollow needle is inserted in tested syringe, then, push-rod electric machine upwards runs, promote the piston rod of tested syringe, the gas of deviating from tested syringe is released about 3ml ~ 4ml to hollow needle, and the sample gas be pushed out is circulated in six-way valve by hollow needle, and then flow in quantity tube, quantity tube to be rinsed and the final O mouth by the second three-way solenoid valve is emptying; Then, six-way valve switches, and the sample gas in quantity tube is sent into chromatogram and detects the separation device detection after testing of carrying out component in gas circuit, form spectrogram by circuit control part collection signal.In the process of sample collection, again carry out the cleaning of a gas circuit, pollute in order to avoid produce sample introduction afterwards.When sample spectrogram gather after, circuit control part can with reference to standard specimen gathered before calculate this sample result and stored in the record storehouse of equipment sample.After a sample collection, degassed motor can continue location running to be repeated to identify, carry out sample introduction to other oil sample, after each sample introduction terminates, circuit control part can with reference to the analysis result of the automatic calculation sample of entered standard specimen result before and stored in data record storehouse.
Beneficial effect of the present invention:
1. the present invention is directed in existing insulating oil detection method that manual operation is more, errors of analytical results is larger
Phenomenon, full automatic mode is adopted to analyze Dissolved Gases in Insulating Oil, when operating, only oil sample need be put into analyser, the actions such as analyser will add Balance Air to oil sample automatically, it is degassed to vibrate, sample introduction, without any artificial operation in whole process, not only save manpower, avoid the error that manual operation produces, it does sample result and possesses far above repeatability during artificial sample introduction and accuracy simultaneously; Degassed and collection analysis focus in an equipment by the present invention, shift oil sample back and forth without the need to re-using two equipment, avoid the component when shifting oil sample and produce back and melt phenomenon; The present invention is high to oil sample test success ratio, avoids the trouble because manual operation error needs again to go to scene to get oil and again analyzes.
(4), accompanying drawing illustrates:
Fig. 1 is the structural representation of dissolved gas analysis instrument in full-automatic dielectric oil;
Fig. 2 is the three-dimensional structure for amplifying schematic diagram (from left front) of deaerating mechanism and auto injection mechanism;
Fig. 3 is the three-dimensional structure for amplifying schematic diagram (from right front) of deaerating mechanism and auto injection mechanism;
Fig. 4 is the structure for amplifying schematic diagram (reference column is upwards pressed in positioning seat) of inflating valve;
Fig. 5 is the structural representation that in Fig. 4, A-A analyses and observe;
Fig. 6 is the structural representation of chromatogram mechanism.
(5), embodiment:
See Fig. 1 ~ Fig. 6, in figure, in full-automatic dielectric oil, dissolved gas analysis instrument contains deaerating mechanism, auto injection mechanism, chromatogram mechanism 7 and circuit control part, containing degassed dish 4 in deaerating mechanism, degassed motor 3, degassed dish optoelectronic switch 16, background light source 30 and camera 29, degassed dish 4 is horizontally disposed rotating disks, the axle of degassed dish 4 is connected with the axle of degassed motor 3, the upper surface periphery of degassed dish 4 is evenly provided with 16 vertical syringes and settles through hole 23, each syringe settles the bottom of through hole 23 to be connected with a vertical fixing pipe box 5, syringe settles through hole 23 to be communicated with fixing pipe box 5 inside, the bottom of fixing pipe box 5 is provided with a piston rod through hole, when piston rod 17 end of syringe 6 is vertically placed in syringe arrangement through hole 23 down, a part above for syringe 6 needle tubing is settled through hole 23 from syringe and is exposed, the piston rod 17 of syringe 23 stretches out from piston rod through hole 23, fixing pipe box 5 has guiding and fixing effect, when syringe 6 puts into fixing pipe box 5, can ensure that the placement direction of each syringe 6 is consistent, 16 casting lug thereons 15 are outwards evenly stretched out in the side of degassed dish 4, position and the syringe of casting lug thereon 15 settle the position of through hole 23 corresponding, degassed dish optoelectronic switch 16 is located at the side of degassed dish 4, when degassed dish 4 rotates, casting lug thereon 15 passes between the transmitting terminal and receiving end of degassed dish optoelectronic switch 16, background light source 30 is located at above the upper surface of degassed dish 4, camera 29 is arranged on above the side of degassed dish 4, background light source 30 is just to the camera lens of camera 29, when degassed dish 4 turns to desired location, a syringe on degassed dish 4 settles the tested syringe 24 placed in through hole 23 just in time between background light source 30 and camera 29, degassed motor 3, degassed dish optoelectronic switch 16, background light source 30 are connected with circuit control part with camera 29, wherein, and the USB port of main control computer in camera 29 connection circuit control section.
Containing organic frame in auto injection mechanism, add Pneumatic generator 18, belt 19, upright guide rail 11, inflating valve support 10, inflating valve 20, inflating valve optoelectronic switch and push-rod electric machine 22, frame contains horizontal support body 8 and vertical frame body 9, adding Pneumatic generator 18 is fixed on horizontal support body 8, upright guide rail 11 is fixed in vertical frame body 9, vertical frame body 9 is also fixed with a rotating shaft 12, this rotating shaft 12 is parallel with the axle adding Pneumatic generator 18 and be positioned at and add directly over Pneumatic generator 18 axle, the axle adding Pneumatic generator 18 drives this rotating shaft 12 to rotate by belt 19, the rear surface of inflating valve support 10 is fixedly connected with by the outside surface of geometrical clamp 14 with belt 19, upright guide rail 11 is arranged in the guide-track groove on inflating valve support 10 rear surface, add Pneumatic generator 18 when starting, belt 19 drives inflating valve support 10 to move up and down along upright guide rail 11, inflating valve 20 is arranged on the lower surface of inflating valve support 10, inflating valve 20 is positioned at the top of degassed dish 4 periphery, push-rod electric machine 22 is vertically arranged on the below of degassed dish 4 periphery, inflating valve 20 is corresponding up and down with the push rod upper end of push-rod electric machine 22, when degassed dish 4 turns to desired location, tested syringe 24 on degassed dish 4 correct corresponding with inflating valve 20, this tested syringe corrects for 24 times corresponding with the push rod upper end of push-rod electric machine 22, the hollow needle 33 vertically arranged is contained at the middle part of inflating valve 20, push-rod electric machine 22 is for pushing in chromatogram mechanism 7 by the gas of deviating from tested syringe 24 by hollow needle 33, inflating valve optoelectronic switch is located in vertical frame body 9, and when inflating valve support 10 moves up and down, the convex sheet on inflating valve support 10 is passed between the transmitting terminal and receiving end of inflating valve optoelectronic switch, inflating valve optoelectronic switch, add Pneumatic generator 18 and be connected with circuit control part with push-rod electric machine 22,
Containing gas pressure maintaining valve BW in chromatogram mechanism 7, aerating pressure maintaining valve JW, six-way valve 21, first three-way solenoid valve DS1, second three-way solenoid valve DS2, aerating electromagnetism two-way valve DC, quantity tube DL, first vapour lock pipe Z1, first threeway ST1 and chromatogram detect gas circuit 25, Standard Gases enters the P mouth of the first three-way solenoid valve DS1 by gas pressure maintaining valve BW, the A mouth of the first three-way solenoid valve DS1 is communicated with second mouthful of six-way valve 21, nitrogen (N2) enters the entrance of aerating pressure maintaining valve JW and the nitrogen inlet of chromatogram detection gas circuit 25 respectively by the first threeway ST1, the outlet of aerating pressure maintaining valve JW is successively by aerating electromagnetism two-way valve DC, first vapour lock pipe Z1 is communicated with the P mouth of the second three-way solenoid valve DS2, the O mouth of the second three-way solenoid valve DS2 is in communication with the outside, the A mouth of the second three-way solenoid valve DS2 is communicated with the O mouth of the first three-way solenoid valve DS1, the two ends of quantity tube DL are communicated with the 4th mouthful with the first of six-way valve 21 respectively, the 6th mouthful of six-way valve 21 is communicated with the 5th mouthful of two air-path interfaces detecting gas circuit 25 respectively with chromatogram, the 3rd mouthful of six-way valve 21 is communicated with the hollow needle 33 in inflating valve 20, when six-way valve 21 is operated in the first state: the first of six-way valve 21 is communicated with second mouthful, the 3rd mouthful of six-way valve 21 is communicated with the 4th mouthful, and the 5th mouthful of six-way valve 21 is communicated with the 6th mouthful, when six-way valve 21 is operated in the second state: the first of six-way valve 21 is communicated with the 6th mouthful, second mouthful of six-way valve 21 is communicated with the 3rd mouthful, and the 4th mouthful of six-way valve 21 is communicated with the 5th, when the first three-way solenoid valve DS1 opens: the A mouth of the first three-way solenoid valve DS1 is communicated with P mouth, when the first three-way solenoid valve DS1 closes: the A mouth of the first three-way solenoid valve DS1 is communicated with O mouth, when the second three-way solenoid valve DS2 opens: the A mouth of the second three-way solenoid valve DS2 is communicated with P mouth, when the second three-way solenoid valve DS2 closes: the A mouth of the second three-way solenoid valve DS2 is communicated with O mouth, six-way valve 21, first three-way solenoid valve DS1, the second three-way solenoid valve DS2, aerating electromagnetism two-way valve DC and chromatogram detect gas circuit 25 and are connected with circuit control part, gas pressure maintaining valve BW and aerating pressure maintaining valve JW adjusts gaseous tension.
Also containing having heaters 1 and fair water fin 2 in deaerating mechanism, well heater 1 is located at the side of degassed dish 4, and fair water fin 2 is located between well heater 1 and degassed dish 4, and fair water fin 2 is plates that one piece of top tilts to well heater 1, and fair water fin 2 is provided with the louver of many levels; Well heater 1 is connected with circuit control part; The heat that well heater 1 sends evenly is transported to degassed Pan4Chu after the louver on fair water fin 2, and the homogeneous temperature on degassed dish 4 is suitable for; Degassed motor 3 is servomotor, and degassed dish 4 is arranged on degassed motor 3.
The side of degassed dish 4 is provided with two degassed dish optoelectronic switches 16, degassed dish optoelectronic switch 16 can between realize the location of degassed dish 4.
Also containing push rod optoelectronic switch in auto injection mechanism, the push rod side of push-rod electric machine 22 is fixedly connected with a vertical gangbar by horizontal web member, when gangbar and push rod synchronously move up and down, horizontal casting lug thereon in gangbar passes between the transmitting terminal and receiving end of push rod optoelectronic switch, controls the path increment of push-rod electric machine 22 with this; Push rod optoelectronic switch is connected with circuit control part.
Push rod optoelectronic switch contains the upper optoelectronic switch of push rod and the next optoelectronic switch of push rod, and the upper optoelectronic switch of push rod is positioned at the top of the next optoelectronic switch of push rod, and the upper optoelectronic switch of push rod is connected with circuit control part with the next optoelectronic switch of push rod.
Inflating valve optoelectronic switch contains the upper optoelectronic switch of inflating valve and the next optoelectronic switch 13 of inflating valve, the upper optoelectronic switch of inflating valve is positioned at the top of the next optoelectronic switch 13 of inflating valve, and the upper optoelectronic switch of inflating valve is connected with circuit control part with the next optoelectronic switch 13 of inflating valve.
Inflating valve 20 is containing the hollow needle 33 vertically arranged, needle holder 31, positioning seat 32, first internal thread fixed cover 36, second internal thread fixed cover 37, reference column 35 and spring 34, needle holder 31 is horizontally disposed disks, the upper face center of needle holder 31 is provided with a vertical air hole 38, the upper end of hollow needle 33 is fixed on the lower surface central authorities of needle holder 31, hollow needle 33 inside is communicated with air hole 38, positioning seat 32 is hollow cylinders that an end face periphery is provided with that a circle protrudes limit, the profile of the first internal thread fixed cover 36 is inverted bottle-cover-shape, the bottom surface central authorities of the first internal thread fixed cover 36 are provided with one for the manhole through positioning seat 32 bottom, the internal diameter of the first internal thread fixed cover 36 is identical with the external diameter of needle holder 31, internal thread on first internal thread fixed cover 36 mates with the external thread on needle holder 31 lateral surface, the lower surface of needle holder 31 and the end face of positioning seat 32 are linked together by the first internal thread fixed cover 36, hollow needle 33 enters positioning seat 32 inside through the through hole of positioning seat 32 end face central authorities, it is inner that reference column 35 and spring 34 are located at positioning seat 32, spring 34 is vertically arranged on the top in positioning seat 32, reference column 35 is arranged on the bottom in positioning seat 32, reference column 35 is that a upper end face periphery is provided with the hollow cylinder that a circle protrudes limit, hollow needle 33 is successively through the middle part of spring 34, reference column 35 is entered inner after the through hole of reference column 35 end face central authorities, the external diameter of reference column 35 end face is identical with the internal diameter of positioning seat 32, the profile of the second internal thread fixed cover 37 is inverted bottle-cover-shape, the bottom surface central authorities of the second internal thread fixed cover 37 are provided with one for the manhole through reference column 35 bottom, second internal thread fixed cover 37 is connected with the lateral surface bottom of positioning seat 32 by screw thread, the bottom of reference column 35 passes from the manhole of the second internal thread fixed cover 37 bottom surface, the lower end internal orifice of reference column 35 is conical mouth, the 3rd mouthful of six-way valve 21 is communicated with hollow needle 33 by the air hole 38 in needle holder 31.
Chromatogram detects in gas circuit 25 containing the first pressure maintaining valve W1, second pressure maintaining valve W2, 3rd pressure maintaining valve W3, flowmeter P, 4th threeway ST4, 5th threeway ST5, 6th threeway ST6, 7th threeway ST7, 8th threeway ST8, first variable valve T1, second variable valve T2, 3rd variable valve T3, second vapour lock pipe Z2, 3rd vapour lock pipe Z3, first chromatographic column S1, second chromatographic column S2, 6th chromatographic column S6, TCD detecting device TCD, first fid detector FID1, second fid detector FID2 and nickel accelerant methane reborner Ni, nitrogen (N2) enters the entrance of aerating pressure maintaining valve JW and the entrance of the first pressure maintaining valve W1 respectively by the first threeway ST1, the exit of the first pressure maintaining valve W1 is provided with flowmeter P, the outlet of the first pressure maintaining valve W1 is communicated with the entrance of the first variable valve T1 with the 6th mouthful of six-way valve 21 respectively by the 4th threeway ST4, the 5th mouthful of six-way valve 21 is communicated with the entrance of the second chromatographic column S2 with the first chromatographic column S1 respectively by the 7th threeway ST7, the outlet of the first chromatographic column S1 is communicated with an entrance of the 8th threeway ST8 by the gage beam of TCD detecting device TCD, the outlet of the second chromatographic column S2 is communicated with the gas entrance of the first fid detector FID1, the outlet of the first variable valve T1 is communicated with the entrance of the 6th chromatographic column S6, the outlet of the 6th chromatographic column S6 is in communication with the outside by the reference arm of TCD detecting device TCD, hydrogen (H2) is communicated with the entrance of the 5th threeway ST5 by the second pressure maintaining valve W2, an outlet of the 5th threeway ST5 is communicated with the hydrogen inlet of the first fid detector FID1 by the second variable valve T2, another outlet of 5th threeway ST5 is communicated with another entrance of the 8th threeway ST8 by the 3rd variable valve T3, the outlet of the 8th threeway ST8 is communicated with the entrance of nickel accelerant methane reborner Ni, and the outlet of nickel accelerant methane reborner Ni is communicated with the gas entrance of the second fid detector FID2, air (Air) is communicated with the entrance of the 6th threeway ST6 by the 3rd pressure maintaining valve W3, two outlets of the 6th threeway ST6 are communicated with the entrance of the 3rd vapour lock pipe Z3 with the second vapour lock pipe Z2 respectively, the outlet of the second vapour lock pipe Z2 is communicated with the air intake of the first fid detector FID1, the outlet of the 3rd vapour lock pipe Z3 is communicated with the air intake of the second fid detector FID2, and the exhausr port of the first fid detector FID1 and the second fid detector FID2 is all in communication with the outside, TCD detecting device TCD, the first fid detector FID1, the second fid detector FID2 are connected with circuit control part with nickel accelerant methane reborner Ni.
Deaerating mechanism realizes the degassed of insulating oil, the functions such as it possesses heating, oil sample is fixed, vibration, well heater 1 in deaerating mechanism provides suitable temperature for degassed, the syringe 6 that oil sample is housed is fixed on degassed dish, when oil sample needs degassed, degassed motor 3 drives degassed dish 4 to carry out round vibration at a high speed, the oil sample in syringe 6 and Balance Air is formed and acutely agitates, to reach degassed object.In addition, degassed module can also position running, and when needing to add Balance Air, degassed motor 3 can drive degassed dish 4 to carry out directed microrunning, and mechanism coordinates with auto injection, completes the aerating to oil sample or exhaust.
The Main Function of auto injection mechanism has been the action such as aerating and sample introduction to oil sample, when carrying out aerating or sampling action, first carry out intelligent decision by the information of camera 29 pairs of syringes 6, then by adding Pneumatic generator 18, gas is added in oil sample, when needing sample introduction, then by push-rod electric machine 22 mixed gas deviate from pushed in chromatogram mechanism 7 and detect.
First camera 29 identifies numbering on syringe 6 whether in the sample introduction list of workstation, in this way, then judge whether to add Balance Air to syringe 6 according to Head space principle, camera 29 judges the gas volume at syringe 6 top, if this volume is less than preset vol, then need to add Balance Air, otherwise, do not need aerating.
The Main Function of chromatogram mechanism 7 has been the detections to sample introduction gas, component in mixed gas is carried out a point separation by chromatographic column, its outlet connects each detecting device, and the single component after being separated enters detecting device successively and detects, and is finally exported by the signal intensity of collection.The effect of nickel accelerant methane reborner Ni CO and CO2 component is converted into the CH4 component that can be detected by fid detector.
In this full-automatic dielectric oil, the workflow of dissolved gas analysis instrument is as follows:
1, device power-up, stable:
Beat power supply and the auxiliary work station of dissolved gas analysis instrument in full-automatic dielectric oil, the various sources of the gas needed for connection.Each several part starts to heat up according to design temperature, after temperature reaches, is lighted a fire by the first fid detector FID1 and the second fid detector FID1, TCD detecting device TCD is added bridge stream, after baseline stability, namely enters steady state (SS).
2, automatically enter standard specimen:
The workstation of circuit control part is clicked standard specimen collection, then analyser starts the analysis automatically carrying out standard specimen.At this moment, first three-way solenoid valve DS1 opens, gas enters into six-way valve 21 by gas pressure maintaining valve BW, the first three-way solenoid valve DS1, quantity tube DL is entered again through six-way valve 21, quantity tube DL is rinsed, and final emptying by hollow needle 33, after certain hour, quantity tube fully rinses through DL, is filled with pure gas; Now, six-way valve 21 switches, first three-way solenoid valve DS1 closes, gas is admitted in chromatogram detection gas circuit 25 by quantity tube DL and detects, gas detects in gas circuit 25 in chromatogram and is separated into single component by mixed gas, and enters detecting device and detect, the output signal change of circuit control part acquisition testing device, and form chromatogram spectrogram, treat the analysis completing whole standard specimen after all components all detect.In the process that standard specimen gathers, second three-way solenoid valve DS2 opens, first three-way solenoid valve DS1 closes, carrier gas (N2) enters into six-way valve 21 by aerating pressure maintaining valve JW, aerating electromagnetism two-way valve DC, the second three-way solenoid valve DS2, the first three-way solenoid valve DS1, enter quantity tube DL through six-way valve 21 again, quantity tube DL to be rinsed and final emptying by hollow needle 33, after a period of time, second three-way solenoid valve DS2 closes, and completes gas circuit cleaning.Can make to remain without sample introduction last time in quantity tube DL by the cleaning of air-flow, can not pollute next sample introduction.
3, auto injection product:
First the syringe 6 that oil sample is housed is put into degassed dish, once can put at most 16 syringes, in the workstation of circuit control part, input needs the sample number into spectrum of sample introduction, clicks and determines that post analysis instrument carries out sample analysis automatically.Sample analysis can be subdivided into add Balance Air, degassed and sample introduction three flow processs of vibrating:
Add Balance Air flow process: the cleaning first carrying out a gas circuit, prevent gas circuit from polluting, cleaning process is consistent with when automatically entering standard specimen.After cleaning terminates, degassed motor 3 meeting directionally microrunning, when the casting lug thereon 15 on degassed dish 4 moves to degassed dish optoelectronic switch 16, degassed dish optoelectronic switch 16 signal intensity, degassed motor 3 is out of service, completes one-time positioning.Now, tested syringe 24 and hollow needle 33, push-rod electric machine 22 on same vertical axis, with background light source 30 and camera 29 on same level axis, background light source 30 electroluminescence, camera 29 carries out Intelligent Recognition.Location is then continued as current anchor point does not meet gas-putting-in condition, then start to add Balance Air as met gas-putting-in condition, when adding Balance Air, add Pneumatic generator 18 to operate, belt about 19 is driven to operate, thus hollow needle 33 is also run up and down, hollow needle 33 first can run down to the next optoelectronic switch 13 place of inflating valve, now hollow needle 33 just in time inserts about about 2mm in tested syringe 24, then the second three-way solenoid valve DS2 opens, carrier gas (N2) enters in tested syringe 24 according to the hollow needle 33 that flows through during cleaning, after certain hour, the second three-way solenoid valve DS2 closes, hollow needle 33 moves to the upper optoelectronic switch place of inflating valve, camera is taken pictures again, identify whether the gas volume after aerating meets standard, as met then aerating success, do not meet and then continue aerating, carry out at most three aeratings, still do not meet then circuit control part to judge aerating failure and stop flow process.After completing an aerating, degassed dish 3 can continue location running, repeats the process identifying aerating, terminates until add Balance Air flow process.
To vibrate degassed flow process: degassed motor 3 carries out rotating action at a high speed, drive between the oil sample in syringe 6 and Balance Air and produce violent vibration, to reach degassed object.After certain hour, degassed motor 3 shuts down, then after stablizing certain hour, degassed flow process of vibrating terminates.
Sample introduction flow process: degassed motor 3 first carries out location running at a slow speed, carries out Intelligent Recognition judgement after arriving anchor point by camera 29 pairs of current anchor point, then continuing location as do not met sampling condition, then carrying out sample introduction as met sampling condition; During sample introduction, add Pneumatic generator 18 to operate, hollow needle 33 is made to run down to the next optoelectronic switch 13 place of inflating valve, hollow needle 33 is inserted in tested syringe 24, then, push-rod electric machine 22 upwards runs, promote the piston rod of tested syringe 24, gas of deviating from tested syringe 24 is released about 3ml ~ 4ml to hollow needle 33, the sample gas be pushed out is circulated in six-way valve 21 by hollow needle 33, and then flow in quantity tube DL, quantity tube DL to be rinsed and the final O mouth by the second three-way solenoid valve DS2 is emptying; Then, six-way valve 21 switches, and the sample gas in quantity tube DL is sent into chromatogram and detects the separation device detection after testing of carrying out component in gas circuit 25, form spectrogram by circuit control part collection signal.In the process of sample collection, again carry out the cleaning of a gas circuit, pollute in order to avoid produce sample introduction afterwards.When sample spectrogram gather after, circuit control part can with reference to standard specimen gathered before calculate this sample result and stored in the record storehouse of equipment sample.After a sample collection, degassed motor 3 can continue location running to be repeated to identify, carry out sample introduction to other oil sample, after each sample introduction terminates, circuit control part can with reference to the analysis result of the automatic calculation sample of entered standard specimen result before and stored in data record storehouse.
Claims (8)
1. dissolved gas analysis instrument in a full-automatic dielectric oil, containing deaerating mechanism, auto injection mechanism, chromatogram mechanism and circuit control part, it is characterized in that: containing degassed dish in deaerating mechanism, degassed motor, degassed dish optoelectronic switch, background light source and camera, degassed dish is a horizontally disposed rotating disk, the axle of degassed dish is connected with the axle of degassed motor, the upper surface periphery of degassed dish is evenly provided with N number of vertical syringe and settles through hole, each syringe settles the bottom of through hole to be connected with a vertical fixing pipe box, syringe settles through hole to be communicated with fixing pipe box inside, the bottom of fixing pipe box is provided with a piston rod through hole, when the piston rod end of syringe is vertically placed in syringe arrangement through hole down, a part above for syringe needle tube is settled through hole from syringe and is exposed, the piston rod of syringe stretches out from piston rod through hole, an integral multiple casting lug thereon of N is outwards evenly stretched out in the side of degassed dish, and degassed dish optoelectronic switch is located at the side of degassed dish, and when degassed dish rotates, casting lug thereon passes between the transmitting terminal and receiving end of degassed dish optoelectronic switch, background light source is located at above the upper surface of degassed dish, camera is arranged on above the side of degassed dish, background light source is just to the camera lens of camera, when degassed dish turns to desired location, a syringe on degassed dish settles the tested syringe placed in through hole just in time between background light source and camera, degassed motor, degassed dish optoelectronic switch, background light source are connected with circuit control part with camera,
Containing organic frame in auto injection mechanism, add Pneumatic generator, belt, upright guide rail, inflating valve support, inflating valve, inflating valve optoelectronic switch and push-rod electric machine, frame contains horizontal support body and vertical frame body, adding Pneumatic generator is fixed on horizontal support body, upright guide rail is fixed in vertical frame body, vertical frame body is also fixed with a rotating shaft, this rotating shaft is parallel with the axle adding Pneumatic generator and be positioned at directly over aerating motor shaft, add the axle of Pneumatic generator by this axis of rotation of belt drive, the rear surface of inflating valve support is fixedly connected with the outside surface of belt, upright guide rail is arranged in the guide-track groove on inflating valve support rear surface, during aerating electric motor starting, belt drive inflating valve support moves up and down along upright guide rail, inflating valve is arranged on the lower surface of inflating valve support, inflating valve is positioned at the top of degassed dish periphery, push-rod electric machine is vertically arranged on the below of degassed dish periphery, inflating valve is corresponding up and down with the push rod upper end of push-rod electric machine, when degassed dish turns to desired location, tested syringe on degassed dish correct corresponding with inflating valve, correct corresponding with the push rod upper end of push-rod electric machine under this tested syringe, the hollow needle vertically arranged is contained at the middle part of inflating valve, inflating valve optoelectronic switch is located in vertical frame body, and when inflating valve support moves up and down, the convex sheet on inflating valve support is passed between the transmitting terminal and receiving end of inflating valve optoelectronic switch, inflating valve optoelectronic switch, add Pneumatic generator and be connected with circuit control part with push-rod electric machine,
Containing gas pressure maintaining valve in chromatogram mechanism, aerating pressure maintaining valve, six-way valve, first three-way solenoid valve, second three-way solenoid valve, aerating electromagnetism two-way valve, quantity tube, first vapour lock pipe, first threeway and chromatogram detect gas circuit, Standard Gases enters the P mouth of the first three-way solenoid valve by gas pressure maintaining valve, the A mouth of the first three-way solenoid valve is communicated with second mouthful of six-way valve, nitrogen enters the entrance of aerating pressure maintaining valve and the nitrogen inlet of chromatogram detection gas circuit respectively by the first threeway, the outlet of aerating pressure maintaining valve is successively by aerating electromagnetism two-way valve, first vapour lock pipe is communicated with the P mouth of the second three-way solenoid valve, the O mouth of the second three-way solenoid valve is in communication with the outside, the A mouth of the second three-way solenoid valve is communicated with the O mouth of the first three-way solenoid valve, the two ends of quantity tube are communicated with the 4th mouthful with the first of six-way valve respectively, the 6th mouthful of six-way valve is communicated with the 5th mouthful of two air-path interfaces detecting gas circuit respectively with chromatogram, the 3rd mouthful of six-way valve is communicated with the hollow needle in inflating valve, when six-way valve is operated in the first state: the first of six-way valve is communicated with second mouthful, the 3rd mouthful of six-way valve is communicated with the 4th mouthful, and the 5th mouthful of six-way valve is communicated with the 6th mouthful, when six-way valve is operated in the second state: the first of six-way valve is communicated with the 6th mouthful, second mouthful of six-way valve is communicated with the 3rd mouthful, and the 4th mouthful of six-way valve is communicated with the 5th, when the first three-way solenoid valve is opened: the A mouth of the first three-way solenoid valve is communicated with P mouth, when the first three-way solenoid valve is closed: the A mouth of the first three-way solenoid valve is communicated with O mouth, when the second three-way solenoid valve is opened: the A mouth of the second three-way solenoid valve is communicated with P mouth, when the second three-way solenoid valve is closed: the A mouth of the second three-way solenoid valve is communicated with O mouth, six-way valve, the first three-way solenoid valve, the second three-way solenoid valve, aerating electromagnetism two-way valve and chromatogram detect gas circuit and are connected with circuit control part.
2. dissolved gas analysis instrument in full-automatic dielectric oil according to claim 1, it is characterized in that: also containing having heaters and fair water fin in described deaerating mechanism, well heater is located at the side of degassed dish, fair water fin is located between well heater and degassed dish, fair water fin is the plate that one piece of top tilts to well heater, and fair water fin is provided with the louver of M bar level; Well heater is connected with circuit control part; Degassed motor is servomotor, and degassed dish is arranged on degassed motor.
3. dissolved gas analysis instrument in full-automatic dielectric oil according to claim 1, is characterized in that: described N is 6 ~ 30, and the side of degassed dish is provided with two degassed dish optoelectronic switches.
4. dissolved gas analysis instrument in full-automatic dielectric oil according to claim 1, is characterized in that: institute
State in auto injection mechanism also containing push rod optoelectronic switch, the push rod side of push-rod electric machine is fixedly connected with a vertical gangbar by horizontal web member, when gangbar and push rod synchronously move up and down, horizontal casting lug thereon in gangbar passes between the transmitting terminal and receiving end of push rod optoelectronic switch, and push rod optoelectronic switch is connected with circuit control part.
5. dissolved gas analysis instrument in full-automatic dielectric oil according to claim 4, it is characterized in that: described push rod optoelectronic switch contains the upper optoelectronic switch of push rod and the next optoelectronic switch of push rod, the upper optoelectronic switch of push rod is positioned at the top of the next optoelectronic switch of push rod, and the upper optoelectronic switch of push rod is connected with circuit control part with the next optoelectronic switch of push rod.
6. dissolved gas analysis instrument in full-automatic dielectric oil according to claim 1, it is characterized in that: described inflating valve optoelectronic switch contains the upper optoelectronic switch of inflating valve and the next optoelectronic switch of inflating valve, the upper optoelectronic switch of inflating valve is positioned at the top of the next optoelectronic switch of inflating valve, and the upper optoelectronic switch of inflating valve is connected with circuit control part with the next optoelectronic switch of inflating valve.
7. dissolved gas analysis instrument in full-automatic dielectric oil according to claim 1, is characterized in that: institute
State inflating valve and contain the hollow needle, needle holder, positioning seat, the first internal thread fixed cover, the second internal thread fixed cover, reference column and the spring that vertically arrange, needle holder is a horizontally disposed disk, the upper face center of needle holder is provided with a vertical air hole, the upper end of hollow needle is fixed on the lower surface central authorities of needle holder, hollow needle inside is communicated with air hole, positioning seat is the hollow cylinder that an end face periphery is provided with that a circle protrudes limit, the profile of the first internal thread fixed cover is inverted bottle-cover-shape, the bottom surface central authorities of the first internal thread fixed cover are provided with one for the manhole through positioning seat bottom, the internal diameter of the first internal thread fixed cover is identical with the external diameter of needle holder, internal thread on first internal thread fixed cover mates with the external thread on needle holder lateral surface, the lower surface of needle holder and the end face of positioning seat are linked together by the first internal thread fixed cover, hollow needle enters positioning seat inside through the through hole of positioning seat end face central authorities, reference column and spring are located at positioning seat inside, spring is vertically arranged on the top in positioning seat, reference column is arranged on the bottom in positioning seat, reference column is that a upper end face periphery is provided with the hollow cylinder that a circle protrudes limit, hollow needle is successively through the middle part of spring, reference column inside is entered after the through hole of reference column end face central authorities, the external diameter of reference column end face is identical with the internal diameter of positioning seat, the profile of the second internal thread fixed cover is inverted bottle-cover-shape, the bottom surface central authorities of the second internal thread fixed cover are provided with one for the manhole through reference column bottom, second internal thread fixed cover is connected with the lateral surface bottom of positioning seat by screw thread, the bottom of reference column passes from the manhole of the second internal thread fixed cover bottom surface, the lower end internal orifice of reference column is conical mouth, the 3rd mouthful of six-way valve is communicated with hollow needle by the air hole in needle holder.
8. dissolved gas analysis instrument in full-automatic dielectric oil according to claim 1, is characterized in that: institute
State chromatogram to detect in gas circuit containing the first pressure maintaining valve, the second pressure maintaining valve, the 3rd pressure maintaining valve, flowmeter, the 4th threeway, the 5th threeway, the 6th threeway, the 7th threeway, the 8th threeway, the first variable valve, the second variable valve, the 3rd variable valve, the second vapour lock pipe, the 3rd vapour lock pipe, the first chromatographic column, the second chromatographic column, the 6th chromatographic column, TCD detecting device, the first fid detector, the second fid detector and nickel accelerant methane reborner, nitrogen enters the entrance of aerating pressure maintaining valve and the entrance of the first pressure maintaining valve respectively by the first threeway, the exit of the first pressure maintaining valve is provided with flowmeter, the outlet of the first pressure maintaining valve is communicated with the entrance of the first variable valve with the 6th mouthful of six-way valve respectively by the 4th threeway, the 5th mouthful of six-way valve is communicated with the entrance of the first chromatographic column with the second chromatographic column respectively by the 7th threeway, the outlet of the first chromatographic column is communicated with an entrance of the 8th threeway by the gage beam of TCD detecting device, the outlet of the second chromatographic column is communicated with the gas entrance of the first fid detector, the outlet of the first variable valve is communicated with the entrance of the 6th chromatographic column, the outlet of the 6th chromatographic column is in communication with the outside by the reference arm of TCD detecting device, hydrogen is communicated with the entrance of the 5th threeway by the second pressure maintaining valve, an outlet of the 5th threeway is communicated with by the hydrogen inlet of the second variable valve with the first fid detector, another outlet of 5th threeway is communicated with by the 3rd variable valve another entrance with the 8th threeway, the outlet of the 8th threeway is communicated with the entrance of nickel accelerant methane reborner, and the outlet of nickel accelerant methane reborner is communicated with the gas entrance of the second fid detector, air is communicated with the entrance of the 6th threeway by the 3rd pressure maintaining valve, two outlets of the 6th threeway are communicated with the entrance of the second vapour lock pipe with the 3rd vapour lock pipe respectively, the outlet of the second vapour lock pipe is communicated with the air intake of the first fid detector, the outlet of the 3rd vapour lock pipe is communicated with the air intake of the second fid detector, and the exhausr port of the first fid detector and the second fid detector is all in communication with the outside, TCD detecting device, the first fid detector, the second fid detector are connected with circuit control part with nickel accelerant methane reborner.
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| CN108195974A (en) * | 2017-12-20 | 2018-06-22 | 囯网河北省电力有限公司电力科学研究院 | Dissolved gas detaches automatic degasser and method in transformer oil sample |
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| CN110844866A (en) * | 2019-11-14 | 2020-02-28 | 唐峰 | Insulating oil needle cylinder subpackaging system and subpackaging control method |
| CN110927301A (en) * | 2019-09-27 | 2020-03-27 | 国网福建省电力有限公司三明供电公司 | Automatic injection system for oil chromatography gas sample and working method thereof |
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| CN110243974A (en) * | 2019-07-12 | 2019-09-17 | 广州供电局有限公司 | Gas chromatographic detection device and gas-chromatography detection system |
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| CN110927301A (en) * | 2019-09-27 | 2020-03-27 | 国网福建省电力有限公司三明供电公司 | Automatic injection system for oil chromatography gas sample and working method thereof |
| CN110844866A (en) * | 2019-11-14 | 2020-02-28 | 唐峰 | Insulating oil needle cylinder subpackaging system and subpackaging control method |
| CN111929382A (en) * | 2020-07-29 | 2020-11-13 | 朗析仪器（上海）有限公司 | Gas chromatography device for dissolving gas in full-automatic insulating oil |
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