CN105510104B - The variable online separator of amount of gas evolved gases dissolved in insulation oil and wall-mounted analysis system - Google Patents
The variable online separator of amount of gas evolved gases dissolved in insulation oil and wall-mounted analysis system Download PDFInfo
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- CN105510104B CN105510104B CN201610082774.2A CN201610082774A CN105510104B CN 105510104 B CN105510104 B CN 105510104B CN 201610082774 A CN201610082774 A CN 201610082774A CN 105510104 B CN105510104 B CN 105510104B
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Abstract
The present invention provides a kind of online separator of variable amount of gas evolved gases dissolved in insulation oil and wall-mounted analysis system, belong to power system automatic field, it realizes oil sample circulation by the oily loop module of intelligence, the balance of oil sample and characteristic gas is realized by gas and oil equilibration module, mist of oil will not be generated during gas and oil equilibration, and it can stop at any time, whole system component is few, it is automatically controlled by control module, amount of gas evolved can be voluntarily adjusted according to the volume of gas analysis module, and when carrying out secondary detection without carrying out purging displacement to whole system, reduce the Oil-gas Separation time significantly, improve detection efficiency.
Description
Technical field
The present invention relates to power system automatic fields, and in particular to a kind of variable amount of gas evolved gases dissolved in insulation oil is online
Separator and wall-mounted analysis system.
Background technique
Currently, more and more mounted power transformers are all in installation oil dissolved gas on-line monitoring system, all new peaces
The large-scale power transformer of dress must all install oil dissolved gas on-line monitoring system, and oil dissolved gas on-line monitoring system can continuously exist
Line, the real-time, content of automatical analysis dissolved gases in insulating oil and concentration growth rate, carry out self to running state of transformer
Analyzing and diagnosing.And the object that oil dissolved gas on-line monitoring system is analyzed come from gases dissolved in insulation oil separator it is separated go out
Characteristic fault gas.The online separation method of dissolved gases in insulating oil mainly has following 4 kinds at present:
(1) membrane separation process, this method carry out Oil-gas Separation using degassing film, but since degassing film only allows gas molecule
Through oil molecule can not pass through, and the side of film is the sample oil constantly recycled, and the gas dissolved in oil is slowly seeped through degassing film
The other side for arriving film thoroughly, achievees the purpose that degassing, and this method outgassing rate is too slow, disengaging time is too long generally require it is 4 small
When, it is very high to oil circulating pump requirement, not constant speed drive is needed, is unsatisfactory for the requirement of real-time online, and the micropore of degassing film can quilt
Oily impurity is blocked and is scrapped.
(2) piston vacuum degassing method, this method need the component of the circle piston with o using cylinder and oil cylinder etc to do
It moves back and forth, is moved reciprocatingly with cylinder and vacuum is extracted to system, sample oil enters vacuum outgas room, and it is true that sample oil enters oil cylinder
In empty room, oil dissolved gas is precipitated, and cylinder is moved repeatedly by feature gas while gas is released in oil cylinder piston counter motion later
Body is transferred to the detection and analysis of quantity tube supplied gas analysis module.The shortcomings that this method is apparatus structure complexity, piston seal
The easily aging cracking in insulating oil immersion corrosion, leads to system oil leak；And sample oil enters the degassing room of condition of high vacuum degree
Afterwards, a large amount of mist of oils are generated, and abjection characteristic gas is transferred in gas analysis module quantity tube together by cylinder, to gas analysis mould
Block element generates pollution, and furthermore this method can not fully erased sample last time degasification process remaining sample oil and taken off
Influence of the gas to next degasification process, in turn results in cross influence.
(3) head space degassing method, this method is deaerated room using fixed volume, with circulation air pump by sample oil air above
Drum is blown into degassing room bottom, by reaching recyclegas and disturbed sample in the bulging to sample oil air above of sample oil
The function of oil, this method have advertised large quantity of air or carrier gas into sample oil, have caused sample oil air content to reach saturation, seriously
Contaminated samples oil, the oxygen meeting oxide isolated oil of dissolution, influences its insulation performance, so can only discharge as excessive fuel consumption, causes
Waste；Each fixed body oil accumulation participates in degassing, and sample oil volume is small to cause amount of gas evolved seldom, influences the detection of gas analysis module
Precision.
(4) vacuum pump type fixed volume vacuum outgas method, this method and method (2) and (3) are substantially similar, still can not
The fully erased remaining sample oil of last time degasification process and influence of the sample gas taken off to next degasification process, precision are low.
Summary of the invention
The purpose of the present invention is to provide a kind of variable online separator of amount of gas evolved gases dissolved in insulation oil, element poles
Few, control is simple, does not generate mist of oil, not contaminated oil, and quantitative without oil, amount of gas evolved can be adjusted adaptively, can be according to gas
The volume adjust automatically amount of gas evolved of analysis module, and the remaining oil sample of last time degassing and characteristic gas are replaced without purging, no
Analysis next time be will affect as a result, reducing the Oil-gas Separation time significantly, detection accuracy is higher.
The present invention is achieved by the following technical scheme:
A kind of variable online separator of amount of gas evolved gases dissolved in insulation oil, suitable for being set to power equipment and gas analysis mould
Between block, the variable online separator of amount of gas evolved gases dissolved in insulation oil includes gas and oil equilibration module, the oily loop module of intelligence and control
Molding block, gas and oil equilibration module and the oily loop module of intelligence are electrically connected with control module, and gas and oil equilibration module includes that balance is held
Device, flow valve, the first solenoid valve and gas equilibrium pump, equalizing reservoir are provided with oil inlet, oil outlet, air inlet and air outlet,
Power equipment is sequentially communicated the first solenoid valve, flow valve and oil inlet, and intelligence oil loop module includes circulating pump and the 5th electromagnetism
Valve, circulating pump are connected to oil outlet, and the 5th solenoid valve one end is connected to circulating pump, and the other end is connected to power equipment, gas analysis mould
Block includes inlet end and outlet side, and air inlet is connected to outlet side, and gas outlet is connected to inlet end, and gas equilibrium pump is set to air inlet
Between outlet side or between gas outlet and inlet end.
Another object of the present invention is to provide a kind of wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system,
It can quickly, accurately realize the Oil-gas Separation detection of power equipment.
The present invention is achieved by the following technical scheme:
A kind of wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system, including gas analysis module and above-mentioned
The variable online separator of amount of gas evolved gases dissolved in insulation oil, gas analysis module include inlet end and outlet side, air inlet connection
Outlet side, gas outlet are connected to inlet end, and oil inlet and oil outlet are respectively used to be connected to power equipment.
The beneficial effect of the variable online separator of amount of gas evolved gases dissolved in insulation oil provided in an embodiment of the present invention is: (1)
Continuous perturbation features gas is pumped by gas equilibrium, makes characteristic gas concentration in the equalizing reservoir in cyclic process always
In non-equilibrium state, degassing efficiency is greatly improved, and is connected in the upper space of equalizing reservoir and with gas analysis module
Pipeline in be each filled with the characteristic gas of equilibrium state, amount of gas evolved is big, and gas analysis module is utilized to improve detection accuracy.
(2) oil sample from the outlet of power equipment after the first solenoid valve, into flow valve, flow valve by flow it is constant
Fixed value, and flowing into from the oil inlet of equalizing reservoir, enters in circulating pump from oil outlet, circulating pump according to the flow of inflow from
The oily equivalent of inflow, is transmitted back in power equipment by the 5th solenoid valve, forms the circulation of oil sample by dynamic adjustment revolving speed.Oil sample is held
Continuous constantly to carry out this circulation and do not stay in equalizing reservoir, in the process, the gas dissolved in oil can diffuse to rapidly flat
The upper space of weighing apparatus container, and the characteristic gas of gas equilibrium pump disturbance is only flowed in upper space, it will not be to equalizing reservoir
Interior oil sample causes to agitate, and will not generate mist of oil, avoids generating pollution to gas analysis module.
(3) whole system component is few, is automatically controlled by control module, can be certainly according to the volume of gas analysis module
Row adjustment amount of gas evolved, and when carrying out secondary detection without carrying out purging displacement to whole system, reduce Oil-gas Separation significantly
Time improves detection efficiency.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structure of wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system provided in an embodiment of the present invention
Schematic diagram；
Fig. 2 is balanced in wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system provided in an embodiment of the present invention
The structural schematic diagram of container；
Fig. 3 is the structural schematic diagram of the equalizing reservoir of another embodiment of the embodiment of the present invention；
Fig. 4 is electric power in wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system provided in an embodiment of the present invention
The installation diagram of equipment；
Fig. 5 is electric power in wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system provided in an embodiment of the present invention
The attachment structure schematic diagram of equipment；
Fig. 6 is stretched in wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system provided in an embodiment of the present invention
The structural schematic diagram of threaded sleeve；
Fig. 7 is electric power in wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system provided in an embodiment of the present invention
The installation diagram of equipment preferred embodiment.
Figure acceptance of the bid note is respectively as follows:
Power equipment 100；Wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system 101；Connecting flange 102；
Flexible threaded sleeve 103；The variable online separator 110 of amount of gas evolved gases dissolved in insulation oil；Gas analysis module 200；Inlet end
210；Outlet side 220；Gas equilibrium pump 230；Gas and oil equilibration module 300；Equalizing reservoir 310；Shell 311；Oil inlet 312；Out
Hydraulic fluid port 313；Air inlet 314；Gas outlet 315；Liquid level sensor 316；Upper space 317；Filter 320；First solenoid valve
330；Flow valve 340；Second solenoid valve 350；Third solenoid valve 360；4th solenoid valve 370；Intelligence oil loop module 400；It follows
Ring pump 410；5th solenoid valve 430；Control module 500.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Therefore, below to the embodiment of the present invention provided in the accompanying drawings
Detailed description be not intended to limit the range of claimed invention, but be merely representative of selected embodiment of the invention.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
Fig. 1 is the structure of wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system 101 provided in this embodiment
Schematic diagram, referring to Fig. 1, wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system 101 include power equipment 100,
Gas analysis module 200, the variable online separator 110 of amount of gas evolved gases dissolved in insulation oil, power equipment 100 is oil-immersed type power
Equipment 100, has quantitative injector in gas analysis module 200, and quantitative injector has inlet end 210 and outlet side 220.
The variable online separator 110 of amount of gas evolved gases dissolved in insulation oil includes control module 500, gas and oil equilibration module 300
With the oily loop module 400 of intelligence, gas and oil equilibration module 300 and the oily loop module 400 of intelligence are electrically connected with control module 500,
Control module 500 controls each component movement of gas and oil equilibration module 300 and the oily loop module 400 of intelligence.
Gas and oil equilibration module 300 include equalizing reservoir 310, flow valve 340, the first solenoid valve 330, second solenoid valve 350,
Third solenoid valve 360, the 4th solenoid valve 370, filter 320 and gas equilibrium pump 230.Equalizing reservoir 310, flow valve 340,
One solenoid valve 330, second solenoid valve 350, third solenoid valve 360, the 4th solenoid valve 370 and gas equilibrium pump 230 are and control
What molding block 500 was electrically connected, that is, control module 500 can control the movement of wherein each component.
Fig. 2 is to balance in wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system 101 provided in this embodiment
The structural schematic diagram of container 310, referring to Fig. 2, equalizing reservoir 310 includes shell 311, equalizing reservoir 310 is provided with oil inlet
312, the top of shell 311 is arranged in oil outlet 313, air inlet 314 and gas outlet 315, oil inlet 312, and oil outlet 313 is arranged
In 311 bottom of shell, so that the oil sample in shell 311 can be emptied all, air inlet 314 and gas outlet 315 are arranged at shell
311 upper end, at work, the oil sample in equalizing reservoir 310 are not that is to say balance full of entire equalizing reservoir 310
The lower containment of container 310 has a certain amount of oil sample, and upper space 317 accommodates air, and air inlet 314 and gas outlet 315 are
In upper space 317.
Intelligence oil loop module 400 includes circulating pump 410 and the 5th solenoid valve 430, and circulating pump 410 plays circulation oil sample and makees
With.
Also referring to Fig. 1 and Fig. 2, power equipment 100 is sequentially communicated filter 320, the first solenoid valve by pipeline
330, flow valve 340 and oil inlet 312.Circulating pump 410 is connected to oil outlet 313, and 430 one end of the 5th solenoid valve is connected to circulating pump
410, the other end is connected to power equipment 100.
The process of entire oil sample flow circuit is such that oil sample enters filter 320 from power equipment 100,
Filter 320 is by the contaminant filter in oil sample, and oil sample passes through the first solenoid valve 330 and flow valve 340 thereafter, and flow valve 340 is
Constant pressure flow control valve, can be by the oil sample stability of flow flowed in entire pipeline in steady state value.After flow valve 340,
Oil sample enters equalizing reservoir 310 through oil inlet 312, rear to flow into circulating pump 410 from oil outlet 313 again, and circulating pump 410 is oil sample
Flowing provide power.It is returned in power equipment 100 by the 5th solenoid valve 430 again.
Gas analysis module 200 includes inlet end 210 and outlet side 220, and air inlet 314 is connected to outlet side 220, gas outlet
315 connection inlet ends 210, second solenoid valve 350 are set between gas outlet 315 and inlet end 210, and third solenoid valve 360 is set
It is placed between outlet side 220 and air inlet 314.Gas equilibrium pump 230 plays cycle specificity gas, specifically, this reality
It applies in example, gas equilibrium pump 230 is set between air inlet 314 and outlet side 220, and gas equilibrium pump 230 is to be located at
Between gas end 220 and third solenoid valve 360, power is provided on the pipeline of entire gas circulation and for gas circulation.
Arrow in Fig. 1 is directed toward the flow direction for showing characteristic gas and oil plant, and the circulation of characteristic gas is in this way
Carry out: oil sample is after entering equalizing reservoir 310, and characteristic gas is detached from from oil sample into upper space 317, at this point, gas
Body equilibrium pump 230 is opened, and characteristic gas enters inlet end 210 by second solenoid valve 350 from gas outlet 315, then from outlet side
220 return to air inlet 314 through gas equilibrium pump 230 and third solenoid valve 360, and are again introduced into equalizing reservoir 310.Whole process
Middle oil sample is also being recycled, and is carried out along with the cyclic process of characteristic gas, and the characteristic gas being precipitated in oil sample is pumped, and is made
The characteristic gas concentration for obtaining 310 headroom space 317 of equalizing reservoir is consistently less than the characteristic gas concentration dissolved in oil sample, this
Non-equilibrium state promotes the characteristic gas in oil sample that disengaging is constantly precipitated, and is detached from more efficient.
With the progress of oil sample circulation and characteristic gas circulation, the characteristic gas of 310 headroom space 317 of equalizing reservoir is dense
Degree gradually reaches equilibrium state with the characteristic gas concentration dissolved in oil sample, at this time the characteristic gas and upper space in oil sample
317 characteristic gas still can have the balance for being precipitated and dissolving, but concentration value is kept constant.The first solenoid valve is closed at this time
330, second solenoid valve 350, third solenoid valve 360 and gas equilibrium pump 230, pump 410 to be recycled will be in equalizing reservoir 310
Oil sample stops circulating pump 410 after drawing back power equipment 100 completely, and closes the 5th solenoid valve 430, stops oil sample circulation.
200 pairs of gas analysis module are detected into balance characteristics gas therein, and then judge the operation of transformer
State.
Circulating pump 410 can be automatically closed when oil-free in entire oil circulation pipeline, in order to facilitate 410 intelligence of circulating pump
Flow is adjusted, is provided with liquid level sensor 316 in the shell 311 of equalizing reservoir 310, liquid level sensor 316 is located at oil inlet 312
Lower section, liquid level sensor 316 is electrically connected with control module 500, specifically, liquid level sensor 316 is arranged in the present embodiment
In the bottom of shell 311.Can more accurately detect the liquid level in equalizing reservoir 310, liquid level sensor 316 can be photoelectricity liquid
Bit switch, floating-ball level switch, liquid level is close to switch, or is various analog quantitys, liquid level sensor of digital output etc..Ginseng
Read Fig. 2, in the present embodiment, liquid level sensor 316 is level detection meter, by directly measuring the liquid level in equalizing reservoir 310,
And liquid level information is passed into control module 500, control module 500 can adjust the stream of flow valve 340 according to liquid level information
The flow of amount and adjustment circulating pump 410 realizes that the flow of oil inlet 312 is equal with 313 flow of oil outlet.
The present embodiment also provides the another embodiment of liquid level sensor 316: refering to Fig. 3, liquid level sensor 316 is used
Floating-ball level switch, liquid level sensor 316 are arranged on the side wall of shell 311, when the liquid level in equalizing reservoir 310 reaches liquid
When at level sensor 316, liquid level information can be passed to control module 500 and adjust flow by liquid level sensor 316.It needs
Bright, floating-ball level switch can also be substituted using liquid level close to switch.
By knowing the liquid level in equalizing reservoir 310, control module 500 can more precise control circulating pump 410, protect
For card when circulating pump 410 works, the flow of oil inlet 312 is equal with 313 flow of oil outlet, does not have 310 top of equalizing reservoir
The characteristic gas in space 317 is drawn into oil sample circulating line, and the liquid level in equalizing reservoir 310 would not also rise, and avoids spy
Sign gas agitates the oil sample in equalizing reservoir 310 in circulation and generates mist of oil, prevents mist of oil from entering gas analysis module 200 and makes
At pollution.Meanwhile when liquid level rises in equalizing reservoir 310, the first solenoid valve 330 can be closed or appropriateness turns stream down
The flow for measuring valve 340, so that the oil inlet quantity of oil inlet 312 is identical as the oil pump capacity of oil outlet 313.
In the first task of whole system, the air shadow in equalizing reservoir 310 and whole system pipeline in order to prevent
Detection structure is rung, the air in whole system should be emptied, therefore preferred embodiment is to be emptied, the present embodiment
In, the variable online separator 110 of amount of gas evolved gases dissolved in insulation oil further includes the 4th solenoid valve 370, and the one of the 4th solenoid valve 370
End is connected between gas equilibrium pump 230 and third solenoid valve 360, and the other end is connected to atmosphere, and the 4th solenoid valve 370 is also and control
Molding block 500 is electrically connected and by the control of control module 500.When needing to empty, third solenoid valve 360 is closed, will be opened
Second solenoid valve 350 and the 4th solenoid valve 370, starting gas equilibrium pump 230.In course of normal operation, the 4th electromagnetism
Valve 370 is to close.
Wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system 101 provided by the invention works in this way:
Oil sample is from the outlet of power equipment 100 after the first solenoid valve 330, and into flow valve 340, flow valve 340 is constant by flow
It flows into, is entered in circulating pump 410 from oil outlet 313, circulating pump in fixed value, and from the oil inlet of equalizing reservoir 310 312
The oily equivalent of inflow according to the flow adjust automatically revolving speed of inflow, is transmitted back to power equipment by the 5th solenoid valve 430 by 410
In 100, the circulation of oil sample is formed.Oil sample constantly carries out this circulation and does not stay in equalizing reservoir 310, in this process
In, the gas dissolved in oil can diffuse to rapidly the upper space 317 of equalizing reservoir 310, at the same time, gas equilibrium pump 230
Synchronous working takes out the gas being precipitated from oil sample toward gas analysis module 200 from gas outlet 315, and again from air inlet 314
It returns in equalizing reservoir 310, that is, by the feature gas in the upper space 317 of gas analysis module 200 and equalizing reservoir 310
Body disturbance circulation is got up, and by that will reach gas and oil equilibration state after a certain period of time, the gas dissolved in oil will not be precipitated again, is put down
The characteristic gas of the upper space 317 of weighing apparatus container 310 will not dissolve into the oil sample of trickling, close all members of device at this time
Part, gas analysis module 200 can start to test and analyze.
Wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system 101 provided in this embodiment is carrying out next time
During Oil-gas Separation, without the characteristic gas for purging the oil sample of displacement last time Oil-gas Separation process and isolating, because upper
At the end of one cycle process, circulating pump 410 draws back the oil sample in oil sample circulation line in power equipment 100 completely, and special
Remaining characteristic gas can participate in gas and oil equilibration process next time in sign gas circulation line, when gas and oil equilibration container 310 is empty
Between characteristic gas concentration when being lower than final equilibrium state characteristic gas concentration, the characteristic gas dissolved in the oil sample of trickling can not
It is disconnected that the space for being diffused into gas and oil equilibration container 310 is precipitated, gas and oil equilibration is finally reached under the circulation disturbance of gas equilibrium pump 230
The characteristic gas concentration in 310 space of container is equal to final equilibrium state characteristic gas concentration, reaches equilibrium state.And it is remaining
The characteristic gas itself that last time isolates is also the dissolved gas in sample oil, so re-dissolving counter sample product oil and returning to oil immersion
Formula power equipment 100 can't pollute oil sample.
If gas analysis module 200 needs more characteristic gas volumes, it is only necessary to replace gas analysis module 200
The volume of sample amounts sample injector, without carrying out any knot to the online separator of variable amount of gas evolved gases dissolved in insulation oil 110
The change of structure and software.When the characteristic gas concentration in 310 space of gas and oil equilibration container has equalized final equilibrium state feature gas
When bulk concentration, gas analysis module 200 needs to increase sample volume and the volume of sample amounts sample injector is made to become larger at this time, in gas
Under the disturbance of equilibrium pump 230, originally the characteristic gas in equilibrium state can be because fill up the volume of the quantitative injector of increase
And the characteristic gas concentration in entire 310 space of gas and oil equilibration container is caused to be broken lower than final equilibrium state characteristic gas concentration
The equilibrium state of original characteristic gas can be changed in the online separator 110 of amount of gas evolved gases dissolved in insulation oil and dissolve in trickling oil sample
Characteristic gas can constantly precipitate into 310 space of gas and oil equilibration container, and reach final equilibrium state.
When the characteristic gas concentration in 310 space of gas and oil equilibration container has equalized final equilibrium state characteristic gas concentration
When, at this time if desired gas analysis module 200 reduces sample volume and only the volume of sample amounts sample injector need to become smaller, equal in gas
Under the disturbance of weighing apparatus pump 230, originally the characteristic gas in equilibrium state can cause entire because of quantitative injector volume-diminished
The characteristic gas concentration in 310 space of gas and oil equilibration container is higher than final equilibrium state characteristic gas concentration, breaks original feature gas
The equilibrium state of body, the characteristic gas concentration meeting back dissolving in 310 space of gas and oil equilibration container reach final into the oil sample of trickling
Equilibrium state.It is also achieved that the adaptive adjustment of amount of gas evolved in this way, adapts to different testing requirements.
Fig. 4 is the installation diagram for the wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system 101 that embodiment provides,
Referring to Fig. 4, oil inlet 312 and oil outlet 313 are fixed on power equipment 100 by connecting flange 102 in the present embodiment,
It is few due to can be changed the components such as the solenoid valve in the online separator 110 of amount of gas evolved gases dissolved in insulation oil in the present embodiment, entirely
The volume very little of the variable online separator 110 of amount of gas evolved gases dissolved in insulation oil, and then can guarantee wall-mounted variable amount of gas evolved
The volume very little of gases dissolved in insulation oil on-line analysis system 101, specifically, Fig. 5 is the connection structure signal of power equipment 100
Figure, referring to Fig. 5, two connecting flanges 102 are set to the top of power equipment 100, two connecting flanges 102 were respectively communicated with
Filter 320 and the 5th solenoid valve 430, connecting flange 102 are fastened with bolt, and the lower part of power equipment 100 is provided with
Two flexible threaded sleeves 103.Fig. 6 is the structural schematic diagram of flexible threaded sleeve 103 provided in this embodiment.Referring to Fig. 6,
Flexible threaded sleeve realized by the threaded connection of inner and outer pipes it is flexible, in use, the both ends of flexible threaded sleeve 103 respectively against
The side wall of power equipment 100 and variable amount of gas evolved gases dissolved in insulation oil on-line analysis system 101, Fig. 7 are that the embodiment of the present invention mentions
The dress of 100 preferred embodiment of power equipment in the wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system 101 supplied
Figure, in this preferred embodiment, using single flange arrangement, one end of flexible threaded sleeve 103 is placed in wall-mounted variable de-
The bottom of tolerance gases dissolved in insulation oil on-line analysis system 101, the other end then extend to ground and form support, are used to support variable de-
Tolerance gases dissolved in insulation oil on-line analysis system 101.
In the present embodiment, the volume that can be changed the online separator 110 of amount of gas evolved gases dissolved in insulation oil is 200mm*200mm*
200mm.Wherein gas analysis module 200 can use the gas chromatographic analysis module analyzed using gas-chromatography principle,
It can also use and utilize the gas analysis module or base analyzed based on electrochemistry or semiconductor gas sensor array principle
The spectral analysis module analyzed in optical sensor principle is carried out based on sound pressure sensors principles such as microphone, microphones
The photoacoustic spectroscopy module of analysis.When the online separator 110 of variable amount of gas evolved gases dissolved in insulation oil connects gas-chromatography point
When analysing module, gas chromatographic analysis module substitutes traditional steel cylinder gas as carrier gas by compression air compressor machine and the compressed air that purifies,
Its weight is within 30Kg.When the online separator 100 of variable amount of gas evolved gases dissolved in insulation oil connects gas sensor array point
Analyse module, optoacoustic spectroscopy gas analysis module or when spectroscopic gas analysis module weight within 15Kg, above scheme composition
Wall-mounted 101 volume of gases dissolved in insulation oil on-line analysis system is within 400mm*300mm*200mm.In compared with the prior art
Gases dissolved in insulation oil on-line analysis system upper 200 kilograms of weight easily, volume easily 1200mm*600mm*500mm with
On size, wall-mounted variable 101 very light in weight of amount of gas evolved gases dissolved in insulation oil on-line analysis system provided in this embodiment, body
Product very little, therefore power equipment 100 can be fixed on using underslung structure, signified power equipment 100 refers to oil immersion herein
Formula power equipment (such as transformer, reactor, casing, the oil-immersed type powers such as mutual inductor equipment).
The advantages of this arrangement are as follows: the volume weight of power equipment 100 is larger, existing when carrying out oil gas on-line analysis
Have the gases dissolved in insulation oil on-line analysis system based on technology since volume is big, weight is big, and need joints cement ground,
And it is placed in from the place over 5 meters of transformer body, is laid with long range oil pipe, and need to protect oil pipe in ice box
Temperature and computer heating control, and then the big quantity space of occupancy and use are a large amount of artificial, it is extremely inconvenient；Due to the analysis system of the prior art
It can be mounted on the cement ground other than with a distance from transformer 5 meters, lead to insulating oil temperature and viscous after the oil pipe of long-distance
All there is difference with transformer body in degree, loses the practical significance of on-line monitoring.Furthermore each sampling analysis time is long, and passes through
Using wall-mounted connection structure, wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis system 101 can be fixed directly
On power equipment, occupied space is few, joints cement ground is not necessarily to, without being laid with long range oil pipe, easy for installation and insulating oil
Flow path it is short, the information monitored can be consistent with the actual conditions in transformer.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.Reality of the invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (7)
1. a kind of wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis, which is characterized in that its by it is wall-mounted can
Become amount of gas evolved gases dissolved in insulation oil on-line analysis system to implement, the wall-mounted variable amount of gas evolved gases dissolved in insulation oil divides online
Analysis system includes gas analysis module and the variable online separator of amount of gas evolved gases dissolved in insulation oil, the variable amount of gas evolved
The online separator of gases dissolved in insulation oil is set between power equipment and the gas analysis module, and the variable amount of gas evolved is exhausted
The online separator of edge oil dissolved gas includes gas and oil equilibration module, the oily loop module of intelligence and control module, the gas and oil equilibration
Module and the oily loop module of intelligence are electrically connected with the control module, the gas and oil equilibration module include equalizing reservoir,
Flow valve, the first solenoid valve and gas equilibrium pump, the equalizing reservoir are provided with oil inlet, oil outlet, air inlet and air outlet
And liquid level sensor is provided in the shell of the equalizing reservoir, the power equipment is sequentially communicated first solenoid valve, institute
Flow valve and the oil inlet are stated, the oily loop module of intelligence includes circulating pump and the 5th solenoid valve, the circulating pump connection
The oil outlet, described 5th solenoid valve one end are connected to the circulating pump, and the other end is connected to the power equipment, the gas
Analysis module includes inlet end and outlet side, and the air inlet is connected to the outlet side, and the gas outlet is connected to the inlet end,
The gas equilibrium pump is set between the air inlet and the outlet side or between the gas outlet and the inlet end；
The analysis method are as follows: the oil sample come out from the power equipment is led to by first solenoid valve and the flow valve
After crossing the flow valve, the oil sample enters the equalizing reservoir through the oil inlet, rear again from described in oil outlet inflow
In circulating pump in intelligence oil loop module, the flow of the oil inlet is equal with the oil outlet flow, and the circulating pump can
Automatically intelligently to adjust flow according to its inlet flow rate and liquid level sensor, guarantee that the circulation pump output flow enters equal to it
Mouth flow reaches lasting equivalent disengaging oil, guarantees that oil level immobilizes in gas and oil equilibration room, then pass through the 5th solenoid valve time
Into the power equipment, oil sample constantly carries out this circulation and does not stay in the equalizing reservoir, in the process, gas
Body equilibrium pump synchronous working takes out the gas being precipitated from the oil sample toward the gas analysis module from gas outlet, and from institute
It states air inlet to come back in the equalizing reservoir, the gas to dissolve in oil will not be precipitated again, the upper space of equalizing reservoir
Characteristic gas when will not dissolve into the oil sample of trickling, close all elements of device, gas analysis module starts to detect
Analysis.
2. wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis according to claim 1, which is characterized in that
The gas and oil equilibration module further includes filter, filter setting first solenoid valve and the power equipment it
Between.
3. wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis according to claim 1, which is characterized in that
The separator further includes second solenoid valve and third solenoid valve, the second solenoid valve be set to the gas outlet with it is described
Between inlet end, the third solenoid valve is set between the air inlet and the outlet side.
4. wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis according to claim 3, which is characterized in that
The separator further includes the 4th solenoid valve, gas equilibrium pump be set to the air inlet and the third solenoid valve it
Between, one end of the 4th solenoid valve is connected between the gas equilibrium pump and the third solenoid valve, and other end connection is big
Gas.
5. wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis according to any one of claims 1 to 4,
It is characterized in that, the equalizing reservoir includes shell, and the oil inlet is set to the upper end of the shell, and the shell is provided with liquid
Level sensor, the liquid level sensor are located at the lower section of the oil inlet, and the liquid level sensor is electrically connected with the control module
It connects.
6. wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis according to claim 5, which is characterized in that
The liquid level sensor is photoelectric liquid-level switch, and the liquid level sensor is set to the bottom of the shell.
7. wall-mounted variable amount of gas evolved gases dissolved in insulation oil on-line analysis according to claim 5, which is characterized in that
The liquid level sensor is floating-ball level switch or the close switch of liquid level or photoelectric liquid-level switch or analog quantity digital output
Liquid level sensor, the liquid level sensor are set to side wall or the bottom of the shell.
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| CN201610082774.2A CN105510104B (en) | 2016-02-05 | 2016-02-05 | The variable online separator of amount of gas evolved gases dissolved in insulation oil and wall-mounted analysis system |
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| CN201610082774.2A CN105510104B (en) | 2016-02-05 | 2016-02-05 | The variable online separator of amount of gas evolved gases dissolved in insulation oil and wall-mounted analysis system |
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| CN105510104B true CN105510104B (en) | 2019-08-13 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106645511A (en) * | 2016-11-18 | 2017-05-10 | 苏州聚阳环保科技股份有限公司 | Gas-circuit automatic spectrum detection device |
| CN109991225A (en) * | 2017-12-30 | 2019-07-09 | 光力科技股份有限公司 | Transformer dissolved gas analysis device |
| CN108614042B (en) * | 2018-03-30 | 2024-03-22 | 广东电网有限责任公司 | Automatic oil pumping device |
| CN110767422A (en) * | 2019-09-20 | 2020-02-07 | 贵州电网有限责任公司 | Equivalent oil changing device of transformer on-load voltage regulation switch and live oil changing method thereof |
| CN111257068B (en) * | 2019-10-22 | 2024-02-06 | 许昌许继软件技术有限公司 | Method and device for replacing dissolved gas in transformer oil |
| CN113899804B (en) * | 2021-09-30 | 2024-04-16 | 国网福建省电力有限公司永安市供电公司 | Device and method for rapidly detecting and judging gas in main transformer fault oil on site |
| CN114279971A (en) * | 2021-12-24 | 2022-04-05 | 中国科学院电工研究所 | A gaseous degasser in insulating oil for electrified detector of optoacoustic spectrum |
| CN115235855B (en) * | 2022-09-21 | 2022-12-16 | 广东工业大学 | Degassing device, degassing method and gas detection system in transformer oil |
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