CN207047195U - A kind of novel evacuated oil filtering unit - Google Patents
A kind of novel evacuated oil filtering unit Download PDFInfo
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- CN207047195U CN207047195U CN201720959244.1U CN201720959244U CN207047195U CN 207047195 U CN207047195 U CN 207047195U CN 201720959244 U CN201720959244 U CN 201720959244U CN 207047195 U CN207047195 U CN 207047195U
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- 238000001914 filtration Methods 0.000 title claims abstract description 98
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- 238000011045 prefiltration Methods 0.000 claims abstract description 8
- 238000004581 coalescence Methods 0.000 claims description 48
- 238000010521 absorption reaction Methods 0.000 claims description 36
- 239000000654 additive Substances 0.000 claims description 29
- 230000000996 additive effect Effects 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000002604 ultrasonography Methods 0.000 claims description 18
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
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- 238000009413 insulation Methods 0.000 abstract description 15
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- 238000006297 dehydration reaction Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 12
- 235000013311 vegetables Nutrition 0.000 description 11
- 238000001514 detection method Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
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- 230000015556 catabolic process Effects 0.000 description 5
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- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
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Abstract
The utility model belongs to insulation oil filter field, specifically disclose a kind of novel evacuated oil filtering unit, including main fuel tank, prefilter, coalescing filter, refined filtration filter, adsorption filter, vacuum separator and vacuum system, it is connected between each equipment by pipeline；The equipment can meet the natural esters insulating oil oil strain needs of refinery practice production, can also meet the needs such as contaminated natural esters insulation oil filter, purification, improving performance, whole system floor space is small, and securely and reliably, operating cost is low, is easy to industrialization promotion.
Description
Technical field
The utility model belongs to insulation oil filter field, and in particular to a kind of novel evacuated oil filtering unit.
Background technology
Vacuum oil filtering equipment is mainly used in removing moisture, solid particle, volatile materials and the polar substances in insulating oil
Deng can effectively improve physics and chemistry, the electric property of insulating oil, be mineral insulating oil production and contaminated mineral insulating oil is carried out
The common equipment of reprocessing, have been obtained for ripe application.
As high-flash novel environment friendly liquid insulating medium, natural esters insulating oil biological degradation rate reaches more than 97%, burning-point
Higher than 300 DEG C, there is good fire safety performance, it is considered to be the favorable substitutes of mineral insulating oil, at present in electricity
Good engineer applied has been obtained in power transformer.But existing conventional mineral insulating oil oil filtering system be not particularly suited for it is new
Natural esters insulating oil.The main component of natural esters insulating oil is triglyceride, and it is hydrophilic to contain hydroxyl and carbonyl etc. in its molecule
Group so that natural esters insulating oil has stronger hydrophily than mineral insulating oil.At room temperature, the saturation of natural esters insulating oil
Water content is about 20 times of mineral insulating oil or so.Moreover, the kinematic viscosity and density of natural esters insulating oil are relatively large, enter one
Step increases the separating difficulty of water content in oil and impurity particle.Further, since the difference of natural esters insulating oil refinery practice, when most
When process is washes afterwards, the moisture of natural esters insulating oil cannot be effective in 5000-6000ppm, conventional oil filter
Remove wherein moisture and impurity.
Chinese patent notification number CN204337838U discloses a kind of coalescence oil filter device with ultrasonic dehydration, including
Inlet valve, coarse filter, oil pump station, heating and ultrasonic dehydration device, coalescing separator, discharging valve, fine filter, delivery valve and pipe
Road is connected.It is characterized in that：Fluid can be effective after a kind of described coalescence oil filter filtering with ultrasonic dehydration
Remove degreasing fluid reclaimed water point and impurity.The utility model appliance arrangement is simple, using ultrasound-enhanced demulsification function, utilizes multiple mistake
Filter and the impurity such as mode, the solid particle effectively gone in degreasing fluid, moisture of profit coarse separation, recover contaminated fluid
Performance, extend the service life of fluid, it is with the obvious advantage.But the patent can not make the natural esters of high saturation moisture content exhausted
Edge oil reaches requirement of the relevant criterion to its moisture, and natural esters insulating oil oxidation stability is poor, under non-vacuum condition
The natural esters insulating oil that heating to make aoxidizes, and causes insulating oil deterioration.
Chinese patent notification number CN204865087U discloses a kind of energy-saving type vacuum oil filter, includes and is sequentially connected with oil-feed
Mouth, oil-feed pump, heat exchanger low temperature oil-in, low temperature oil export, high temperature oil-in, high temperature oil export, enter solenoid, heating
Device, vacuum separation room, oil outlet pump, high temperature oil-in, high temperature oil export, filtration system, go out solenoid, oil-out, in use
When stating the energy-saving type vacuum oil filter of technical scheme and passing through heat exchanger using low-temperature oil, reduced in advance by high temperature oil heating follow-up
The requirement such as the electric power that heater expends, the power supply provided oil filter heater, cable reduces；When high temperature oil passes through heat exchanger,
Cooled by heat exchange and radiating, after the oil after cooling is discharged into oil-using units or storage tank, can be set with respect to raising with oil
Standby life-span and the life-span of storage tank, while the quality of oil product, particularly lubricating oil are improved, oil body and profit can be improved
Sliding effect.The patent is not suitable for the natural esters insulating oil of high-moisture, and when water content is too high, the vacuum oil filtering starting stage can not
Ensure higher vacuum, and certain injury can be caused to vavuum pump.
China Patent Publication No. CN106310717A discloses a kind of oil strain technique for reducing vegetable insulating oil moisture, including
Following steps：（1）Vegetable insulating oil of the moisture more than 100ppm is pumped into vacuum tank, is stirred and planted with 55r/min rotating speed
Thing insulating oil 70min, then coalescence dehydration oil filter is pumped into 25L/min flows, successively by Coalescence filter core and separation filter core, follow
Ring carries out 3-4h；（2）By step（1）It is 3 μm of refined filtration filter cores that the vegetable insulating oil of acquisition, which iterates through aperture, dehydration cycle 6h；
（3）By step（2）The vegetable insulating oil of acquisition is pumped into vacuum dehydration can, is stirred and is aided with 40r/min rotating speed and passes through
Stored after the condenser coil cooling 5h of normal temperature pure water.It is low using the vegetable insulating oil moisture obtained by technical solution of the present invention
In 30ppm, electric physicochemical property change degree is smaller, meets GB/T 7595-2008 transformer oil quality standards.The patent is only
The moisture in vegetable insulating oil can be effectively removed, but its refined filtration filter core aperture is larger, removes the solid in vegetable insulating oil
Grain and polar substances effect are poor, it is impossible to are effectively improved the electrical insulation properties of vegetable insulating oil, can not meet contaminated
Natural esters insulation oil filter, purification, improving performance etc. need.
China Patent Publication No. CN104987949A discloses a kind of improvement processing method of vegetable insulating oil, including as follows
Step：（1）Coalesce dewater treatment；（2）Vacuum dehydration is handled；（3）It is stirred under vacuum, refined filtration processing, produces.The present invention is by above-mentioned
Improve moisture in the vegetable insulating oil after processing method processing and be less than 50mg/kg, 5 μm of impurity is more than in 100ml oil
Grain is less than or equal to 2000.But the technique does not have the damage for considering that vegetable insulating oil has additive in filter process
Lose, a certain amount of additive of supplement that should be appropriate while oil strain ensures its performance, such as oxidation stability, low temperature flow
Property etc..
Utility model content
In view of this, the purpose of this utility model is in view of the shortcomings of the prior art, there is provided a kind of novel evacuated oil strain is set
Standby, the equipment can meet the natural esters insulating oil oil strain needs of refinery practice production, can also meet that contaminated natural esters are exhausted
The filtering of edge oil, purification, improving performance etc. need, and whole system floor space is small, and securely and reliably, operating cost is low, is easy to industry
Change and promote.
To reach above-mentioned purpose, the utility model uses following technical scheme：
A kind of novel evacuated oil filtering unit, including main fuel tank, prefilter, coalescing filter, refined filtration filter, adsorbed
Filter, vacuum separator and vacuum system, it is connected by pipeline between each equipment；
The main fuel tank upper side sets additive feed pipe road and in-line, the additive feed pipe road respectively
Upper setting additive feeds magnetic valve, and the in-line connects oil-feed branch road, set on the oil-feed branch road into solenoid；
The main fuel tank bottom is respectively communicated with outlet line and coalescence pipeline road, sets out solenoid in the outlet line, institute
State and coalescence oil transportation variable frequency pump inlet solenoid valve is set gradually on coalescence pipeline road, oil transportation variable frequency pump, hand sample valve is coalesced, gathers
Tie oil transportation variable frequency pump outlet solenoid valve, prefilter and coalescing filter；The coalescing filter outlet sets coalescence outlet electricity
Magnet valve, and connect in-line by coalescing output pipe；
Coalescence pipeline road between the hand sample valve and coalescence oil transportation variable frequency pump outlet valve passes through vacuum filter master
Vacuum separator top described in pipeline connection；Magnetic valve and bypass electromagnetism among #2 are set gradually on the vacuum filter main line
Valve, the bypass magnetic valve both ends parallel connection refined filtration pipeline and absorption two pipelines of pipeline, the refined filtration pipeline and absorption pipeline go out
Connected among mouth series connection #1 after magnetic valve with the vacuum filter main line, the refined filtration pipeline and absorption line entry are located at institute
State magnetic valve both ends among #2；Refined filtration filter is set on the refined filtration pipeline, and the refined filtration filter incoming and outgoing mouth is set respectively
Refined filtration inlet solenoid valve and refined filtration outlet solenoid valve are put, adsorption filter, the adsorption filter are set on the absorption pipeline
Entrance and exit sets absorption inlet solenoid valve and absorption outlet solenoid valve respectively；
The vacuum separator top connects the main fuel tank top by vacuum line, away from institute on the vacuum line
State and main fuel tank vacuum solenoid and vacuum separator vacuum solenoid are set gradually on main fuel tank direction, the main fuel tank vacuum electric
Vacuum line between magnet valve and vacuum separator vacuum solenoid connects the vacuum system by vacuum branch road；The vacuum
Separator bottom connects in-line by vacuum filter export pipeline, and vacuum oil transportation is set on the vacuum filter export pipeline
Variable frequency pump and vacuum filter outlet solenoid valve.
Further, ultrasound wave vibrating bar, pressure release electromagnetic valve, variable-frequency motor and vacuum are set respectively at the top of the main fuel tank
Table and electrically heated rod, the variable-frequency motor are located at main fuel tank top center, and the main fuel tank side wall sets liquid level gauge；Variable-frequency motor
Agitating paddle is set through main fuel tank one end, agitating paddle is made up of oblique leaf formula blade and frame blade.
Further, what the ultrasound wave vibrating bar and electrically heated rod were symmetrically spaced is arranged at the top of the main fuel tank, and
It is fixed in the main fuel tank inwall.
Further, the ultrasound wave vibrating bar is identical with electrically heated rod length, and positioned at 2- above the frame blade
5cm。
Further, the coalescing filter lower end connection water collector, the browser at the bottom of the catchment install draining valve.
Further, the vacuum separator includes rotary stainless steel ball-type disperser, circular sight glass and liquid level guarantor
Protection unit, the rotary stainless steel ball-type disperser are arranged on the vacuum filter main line stretched at the top of the vacuum separator
End, the circular sight glass is sealingly disposed in the vacuum separator sidepiece with liquid level protection device, and the liquid level is protected
Device inside vacuum separator with being connected.
Further, the refined filtration filter and filter-core of absorption filtering device aperture are 0.5-0.75 μm.
Further, the single access system of the refined filtration filter and adsorption filter uses.
Further, refined filtration filter and adsorption filter the serial or parallel connection access system uses.
Further, the liquid level protection device is connected with coalescence oil transportation variable frequency pump and vacuum oil transportation variable frequency pump frequency converter,
Uninterrupted and the start and stop of oil transportation variable frequency pump and vacuum oil transportation variable frequency pump are coalesced by chain VFC.
The beneficial effects of the utility model are：
（1）Because natural esters insulating oil has the loss of additive, conventional additive during filtering or dehydration etc.
Have antioxidant, pour-point depressant or a matal deactivator, the reductions of these additives can influence natural esters insulating oil oxidation stability and
Low temperature flow etc., therefore the present invention sets additive feed pipe to be used to supplement additive in main fuel tank upper side, to ensure
Natural esters insulating oil steady quality.
（2）Agitating paddle and ultrasound wave vibrating bar are set in main fuel tank of the present invention, mechanical agitation and ultrasonic wave can be realized simultaneously
Vibration, mechanical agitation can be uniformly distributed moisture in natural esters insulating oil and impurity, and ultrasonic wave can effectively improve coalescence
Demulsification ability during dehydration, greatly improve the efficiency of coalescence dehydration；Reduction that can be appropriate while shortening dewatering time is dehydrated
Flow velocity, can effectively avoid natural esters insulation oil flow rate it is too fast produce oil flow electrification the problems such as.
When adding additive in other natural esters insulating oil, supersonic oscillations can effectively improve additive in natural esters
Degree of scatter in insulating oil.Using mechanical agitation plus the pattern of supersonic oscillations, single mechanical agitation point can have both been avoided
The problem of uneven is dissipated, can also avoid causing to produce C in natural esters insulating oil because of supersonic oscillations overlong time2H2And total hydrocarbon
The problem of too high levels.
（3）Present invention introduces refined filtration filter and adsorption filter be able to can also both have been connected or simultaneously with single use
Connection uses, and both of which uses 0.5-0.75 μm of small-bore filter core, can effectively remove solid particle in insulating oil and
Polar substances, improve physics and chemistry, the electric property of natural esters insulating oil.
（4）Vacuum separator of the present invention uses rotary stainless steel ball-type disperser, and oil droplet dispersion effect is better than existing
Oil droplet dispersal device, dehydrating effect of the natural esters insulating oil in vacuum separation room can be greatly improved；In addition, vacuum separation room is adopted
With liquid level protection device, and the device is connected with coalescence oil transportation variable frequency pump and vacuum oil transportation variable frequency pump frequency converter, by chain
VFC coalesces oil transportation variable frequency pump and vacuum oil transportation variable frequency pump, can prevent that liquid level is too high in vacuum separation room so that dehydration
Effect is deteriorated, and insulating oil can also be avoided, which to enter vacuum system, causes vavuum pump to be contaminated and damage.Meanwhile pass through chain change
Frequency can also effectively avoid oil transfer pump because vacuum separation room oil level is too low and caused by oil transfer pump there is situation about dallying and occur.
（5）The present invention is effectively effective by techniques such as coalescence dehydration, vacuum dehydration, refined filtration, adsorption filtration and additive additions
Combine, form a whole set of natural esters insulation oil vacuum oil-filtering apparatus, can both meet that the natural esters of refinery practice production were exhausted
Edge oily filter oil needs, and can also meet the needs such as contaminated natural esters insulation oil filter, purification, improving performance, whole system
Floor space is small, and securely and reliably, operating cost is low, is easy to industrialization promotion.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1, embodiment 2 and embodiment 3.
In figure：1- additives feed magnetic valve, 2- main fuel tanks, 3- ultrasound wave vibrating bars, 4- pressure release electromagnetic valves, 5- variable-frequency electrics
Machine, 6- vacuum meters, 7- electrically heated rods, 8- main fuel tank vacuum solenoids, 9- liquid level gauges, 10- vacuum separator vacuum solenoids,
The rotary stainless steel ball-type dispersers of 11-, 12- circle sight glass, 13- liquid level protection devices, 14- vacuum separators, 15- vacuum
Oil transportation variable frequency pump, 16- vacuum filter outlet solenoid valves, 17- refined filtration outlet solenoid valves, 18- absorption outlet solenoid valves, 19- absorption
Filter, 20- bypass magnetic valves, 21- absorption inlet solenoid valves, 22- refined filtration inlet solenoid valves, 23- refined filtration filters, 24- gather
Knot filter, 25- coalescence outlet solenoid valves, 26- prefilters, 27- coalescence oil transportation variable frequency pump outlet solenoid valves, 28- water collectors,
Draining valve is installed in 29- bottoms, and 30 enter solenoid, 31- hand sample valves, and 32- coalesces oil transportation variable frequency pump, and 33- goes out solenoid,
34- coalesces oil transportation variable frequency pump inlet solenoid valve, 35- frame blades, the oblique leaf formula blades of 36-, 37- vavuum pumps, 38-#2 centres electromagnetism
Valve, 39-#1 centres magnetic valve, 40- additive feed pipes road, 41- in-lines, 42- oil-feed branch roads, 43- outlet line, 44-
Coalescence pipeline road, 45- coalescence output pipes, 46- vacuum filter main lines, 47- refined filtration pipelines, 48- absorption pipelines, 49- are true
Blank pipe road, 50- vacuum branch roads, 51- vacuum filter export pipelines.
Embodiment
The utility model and its advantage are made further specifically below in conjunction with specific embodiment and Figure of description
It is bright, but specific embodiment of the present utility model is not limited thereto.
Embodiment 1
As shown in figure 1, a kind of novel evacuated oil filtering unit, including main fuel tank 2, prefilter 26, coalescing filter 24, essence
Filter filter 23, adsorption filter 19, vacuum separator 14 and vacuum system, the vacuum system in the present embodiment is vavuum pump
37, it is connected by pipeline between each equipment.
The upper side of main fuel tank 2 sets additive feed pipe road 40 and in-line 41, additive feed pipe road 40 respectively
Upper setting additive feeds magnetic valve 1, and for controlling the addition of additive, in-line 41 connects oil-feed branch road 42, oil-feed branch
Set on road 42 into solenoid 30；The bottom of main fuel tank 2 is respectively communicated with outlet line 43 and coalescence pipeline road 44, outlet line
Solenoid 33 is set out on 43, coalesces and coalescence oil transportation variable frequency pump inlet solenoid valve 34, coalescence is set gradually on pipeline road 44
Oil transportation variable frequency pump 32, hand sample valve 31, coalescence oil transportation variable frequency pump outlet solenoid valve 27, prefilter 26 and coalescing filter
24.The outlet of coalescing filter 24 sets coalescence outlet solenoid valve 25, and connects in-line 41 by coalescing output pipe 45；Hand
Coalescence pipeline road 44 between work sampling valve 31 and coalescence oil transportation variable frequency pump outlet valve 27 is connected by vacuum filter main line 46
Lead to the top of vacuum separator 14, magnetic valve 38 and bypass magnetic valve 20 among #2 are set gradually on vacuum filter main line 46, it is other
The both ends parallel connection refined filtration pipeline 47 of way solenoid valve 20 and absorption 48 two pipelines of pipeline, refined filtration pipeline 47 and absorption pipeline 48 outlet string
Connected among connection #1 after magnetic valve 39 with vacuum filter main line 46, refined filtration pipeline 47 and the absorption entrance of pipeline 48 are located among #2
The both ends of magnetic valve 38.Refined filtration filter 23 is set on refined filtration pipeline 47, and the incoming and outgoing mouth of refined filtration filter 23 sets refined filtration to enter respectively
Mouthful magnetic valve 22 and refined filtration outlet solenoid valve 17, adsorb and adsorption filter 19 be set on pipeline 48, the entrance of adsorption filter 19 and
Outlet sets absorption inlet solenoid valve 21 and absorption outlet solenoid valve 18 respectively；Wherein refined filtration filter and filter-core of absorption filtering device
Aperture can be 0.5-0.75 μm, and refined filtration filter and filter-core of absorption filtering device aperture are 0.5 μm in the present embodiment.
The top of vacuum separator 14 connects main fuel tank 2 top by vacuum line 49, away from main fuel tank 2 on vacuum line 49
Set gradually main fuel tank vacuum solenoid 8 and vacuum separator vacuum solenoid 10 on direction, main fuel tank vacuum solenoid 8 and true
Vacuum line 49 between empty separator vacuum solenoid 10 connects vavuum pump 37 by vacuum branch road 50.The bottom of vacuum separator 14
Portion connects in-line 41 by vacuum filter export pipeline 51, and vacuum filter export pipeline 51 is away from the direction of vacuum separator 14
On set gradually vacuum oil transportation variable frequency pump 15 and vacuum filter outlet solenoid valve 16.
The top of main fuel tank 2 sets ultrasound wave vibrating bar 3, pressure release electromagnetic valve 4, variable-frequency motor 5 and vacuum meter 6, electrically heated rod
7, variable-frequency motor 5 is located at the top center of main fuel tank 2, and the side wall of main fuel tank 2 sets liquid level gauge 9；Variable-frequency motor 5 passes through main fuel tank 2 one
End sets agitating paddle, and agitating paddle is made up of oblique leaf formula blade 36 and frame blade 35, wherein oblique leaf formula blade 36 is located at frame oar
The top of leaf 35；What ultrasound wave vibrating bar 3 and electrically heated rod 7 were symmetrically spaced is arranged on the top of main fuel tank 2, and in the inwall of main fuel tank 2
It is fixed, and ultrasound wave vibrating bar 3 is identical with the length of electrically heated rod 7, and it is located at the top 2-5cm of frame blade 35, this implementation
Ultrasound wave vibrating bar 3 is located at the top 5cm of frame blade 35 with the bottom of electrically heated rod 7 in example, that is, ensures that the machinery in main fuel tank 2 stirs
Mix and supersonic oscillations are uniform, and do not influence agitating paddle normal work.
The lower end of coalescing filter 24 connects water collector 28, the bottom of water collector 28 installation draining valve 29.
Vacuum separator 14 includes rotary stainless steel ball-type disperser 11, circular sight glass 12 and liquid level protection device
13, wherein rotary stainless steel ball-type disperser 11 is arranged on the end of vacuum filter main line 46 for stretching into the top of vacuum separator 14
End, circular sight glass 12 and liquid level protection device 13 are sealingly disposed in the sidepiece of vacuum separator 14, and liquid level protection device 13 with
It is connected inside vacuum separator 14, wherein liquid level protection device and coalescence oil transportation variable frequency pump and vacuum oil transportation variable frequency pump frequency converter
Connection, uninterrupted and the start and stop of oil transportation variable frequency pump and vacuum oil transportation variable frequency pump are coalesced by chain VFC.
The utility model will coalesce the techniques such as dehydration, vacuum dehydration, refined filtration, adsorption filtration and additive addition and combine
Come, each technique is required for sampling to detect, and when sampling detection reaches setting, could carry out next step operation, novel evacuated
The operation principle and application method of oil filtering unit are as follows：
Start vavuum pump 37, open vacuum solenoid 8, when the vacuum of observation vacuum meter 6 to display meets to require, open
Enter solenoid 30, natural esters insulating oil is injected in main fuel tank 2 by oil-feed branch road 42 and in-line 41, and observes liquid level
Meter 9, when liquid level gauge 9 shows that liquid level meets setting value, close into solenoid 30, open variable-frequency motor 5 and then drive oblique leaf
Formula blade 36 and frame blade 35 are stirred, and intermittent start ultrasound wave vibrating bar 3；Coalescence oil transportation variable frequency pump is opened simultaneously
Inlet solenoid valve 34, coalescence oil transportation variable frequency pump outlet solenoid valve 27 and coalescence outlet solenoid valve 25, start coalescence oil transportation variable frequency pump
32, after natural esters insulating oil in main fuel tank 2 flowed through into prefilter 26 and coalescing filter 24 by coalescing pipeline road 44
Entered again by coalescing output pipe 45 and in-line 41 in main fuel tank 2, carry out circulation coalescence dehydration, the moisture of removing flows into
Water collector 28 is simultaneously discharged by draining valve 29, and circulation coalescence dehydration intermittent opens hand sample valve 31 and is sampled inspection
Survey.
When detecting that natural esters insulation water content in oil meets to require, coalescence oil transportation variable frequency pump 32 is closed, coalescence oil transportation becomes
Frequency pump intake magnetic valve 34, coalescence oil transportation variable frequency pump outlet solenoid valve 27 and coalescence outlet solenoid valve 25, stop ultrasonic activation
Rod 3, start electrically heated rod 7 and the natural esters insulating oil in main fuel tank 2 is heated, electric add is adjusted after being heated to set point of temperature value
Hot pin 7 maintains temperature, then opens coalescence oil transportation variable frequency pump inlet solenoid valve 34, #2 centres magnetic valve 38, bypass magnetic valve 20
And vacuum filter outlet solenoid valve 16, start coalescence oil transportation variable frequency pump 32 and natural esters insulating oil is passed through into vacuum filter main line 46
The rotary stainless steel ball-type disperser 11 of end connection is sprayed into the inside of vacuum separator 14 and carries out vacuum dehydration；Pass through circle
Sight glass 12 observes cases of dehydration in vacuum separator 14, and starts liquid level protection device 13 and vacuum oil transportation variable frequency pump 15 by very
Natural esters insulating oil after sky dehydration is delivered in main fuel tank 2 by vacuum filter export pipeline 51 and in-line 41 to be followed
Ring vacuum dehydration, and intermittent hand sample valve 31 of opening is sampled detection.
When detecting that natural esters insulation water content in oil meets required value, refined filtration inlet solenoid valve 22, refined filtration outlet are opened
Magnetic valve 17, absorption outlet solenoid valve 18 and absorption inlet solenoid valve 21, close #2 among magnetic valve 38, natural esters insulating oil according to
It is secondary to be connected in series through refined filtration filter 23 and the progress of adsorption filter 19 refined filtration, adsorption treatment, while intermittent opening hand sample
Valve 31 is sampled detection；
When detecting that natural esters insulation water content in oil, dielectric dissipation factor, breakdown voltage and granularity meet required value,
Magnetic valve 38 among #2 is opened, refined filtration inlet solenoid valve 22, refined filtration outlet solenoid valve 17, absorption outlet solenoid valve 18 is closed and inhales
Attached inlet solenoid valve 21, open additive charging magnetic valve 1 and suck additive mother liquor vacuum in main fuel tank 2, and start ultrasound
Ripple vibrating head 3 carries out ultrasonic disperse in short-term to natural esters insulating oil, is then shut off ultrasound wave vibrating bar 3, detection natural esters insulation
When water content in oil, dielectric dissipation factor, breakdown voltage, granularity and chromatogram value meet required value, coalescence oil transportation variable frequency pump is closed
32 and coalescence oil transportation variable frequency pump inlet solenoid valve 34；When 13 low liquid level warning of liquid level protection device, vacuum is closed in chain frequency conversion
Oil transportation variable frequency pump 15；Magnetic valve 38 among #2, bypass magnetic valve 20 and vacuum filter outlet solenoid valve 16 are then shut off, is stopped true
Empty pump 37, vacuum separator vacuum solenoid 10, main fuel tank vacuum solenoid 8 and variable-frequency motor 5 are closed, naturally cools to room
Temperature；Open pressure release electromagnetic valve 4 and go out solenoid 33 by outlet line 43 by finished product natural esters insulating oil output system.
Embodiment 2
The novel evacuated oil filtering unit of embodiment 2 is same as Example 1, except that application method is different, user
Refined filtration filter 23 and adsorption filter 19 use parallel way access system in method, i.e., intermittent hand sample valve 31 of opening enters
Row sampling detection, when detecting that natural esters insulation water content in oil meets required value, open refined filtration inlet solenoid valve 22, refined filtration goes out
Mouth magnetic valve 17, absorption inlet solenoid valve 21, absorption outlet solenoid valve 18, #1 centres magnetic valve 39, close and bypass magnetic valve 20,
A part of natural esters insulating oil carries out refined filtration processing by refined filtration filter 23, and another part natural esters insulating oil was by adsorbing
Filter 19 carries out adsorption treatment；When detecting that natural esters insulation water content in oil, dielectric dissipation factor, breakdown voltage and granularity expire
During sufficient required value, bypass magnetic valve 20 is opened, closes refined filtration inlet solenoid valve 22, refined filtration outlet solenoid valve 17, absorption entrance electricity
Magnetic valve 39 among magnet valve 21, absorption outlet solenoid valve 18 and #1, additive charging magnetic valve 1 is opened by additive mother liquor vacuum
Suck in main fuel tank 2, and start ultrasound wave vibrating bar 3 and ultrasonic disperse in short-term is carried out to natural esters insulating oil.Other processing steps
It is same as Example 1.
Embodiment 3
The novel evacuated oil filtering unit of embodiment 3 is same as Example 1, except that, refined filtration filters in application method
Device 23 and adsorption filter 19 use single mode access system, i.e., intermittent hand sample valve 31 of opening is sampled detection,
When detecting that natural esters insulation water content in oil meets required value, refined filtration inlet solenoid valve 22, refined filtration outlet solenoid valve 17 are opened
And magnetic valve 39 among #1, bypass magnetic valve 20 is closed, natural esters insulating oil carries out refined filtration processing by refined filtration filter 23；So
Absorption inlet solenoid valve 21 and absorption outlet solenoid valve 18 are opened afterwards, close refined filtration inlet solenoid valve 22 and refined filtration outlet solenoid valve
17, natural esters insulating oil carries out adsorption treatment by adsorption filter 19；When detect natural esters insulation water content in oil, medium damage
When consumption factor, breakdown voltage and granularity meet required value, bypass magnetic valve 20 is opened, absorption inlet solenoid valve 21 is closed, inhales
Magnetic valve 39 among attached outlet solenoid valve 18 and #1, open additive charging magnetic valve 1 and additive mother liquor vacuum is sucked into main oil
In case 2, and start ultrasound wave vibrating bar 3 and ultrasonic disperse in short-term is carried out to natural esters insulating oil.Other processing steps and embodiment 1
It is identical.
Finally illustrate, above example only to illustrate the technical solution of the utility model and unrestricted, this area
Other modifications or equivalent substitution that those of ordinary skill is made to the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme, it all should cover among right of the present utility model.
Claims (10)
- A kind of 1. novel evacuated oil filtering unit, it is characterised in that：Including main fuel tank, prefilter, coalescing filter, refined filtration filtering Device, adsorption filter, vacuum separator and vacuum system, it is connected by pipeline between each equipment；The main fuel tank upper side sets additive feed pipe road and in-line, the additive feed pipe Lu Shangshe respectively Additive charging magnetic valve is put, the in-line connects oil-feed branch road, set on the oil-feed branch road into solenoid；It is described Main fuel tank bottom is respectively communicated with outlet line and coalescence pipeline road, and solenoid is set out in the outlet line, described poly- It is defeated that coalescence oil transportation variable frequency pump inlet solenoid valve, coalescence oil transportation variable frequency pump, hand sample valve, coalescence are set gradually on knot pipeline road Oily variable frequency pump outlet solenoid valve, prefilter and coalescing filter；The coalescing filter outlet sets coalescence outlet solenoid valve, And connect in-line by coalescing output pipe；Coalescence pipeline road between the hand sample valve and coalescence oil transportation variable frequency pump outlet valve passes through vacuum filter main line Connect the vacuum separator top；Magnetic valve and bypass magnetic valve among #2 are set gradually on the vacuum filter main line, The bypass magnetic valve both ends parallel connection refined filtration pipeline and absorption two pipelines of pipeline, the refined filtration pipeline and absorption tube outlet string Connected among connection #1 after magnetic valve with the vacuum filter main line, the refined filtration pipeline and absorption line entry are located at the #2 Middle magnetic valve both ends；Refined filtration filter is set on the refined filtration pipeline, and the refined filtration filter inlet and outlet are set respectively Refined filtration inlet solenoid valve and refined filtration outlet solenoid valve, described adsorb set adsorption filter on pipeline, and the adsorption filter enters Mouth and outlet set absorption inlet solenoid valve and absorption outlet solenoid valve respectively；The vacuum separator top connects the main fuel tank top by vacuum line, away from the master on the vacuum line Main fuel tank vacuum solenoid and vacuum separator vacuum solenoid, the main fuel tank vacuum solenoid are set gradually on fuel tank direction Vacuum line between vacuum separator vacuum solenoid connects the vacuum system by vacuum branch road；The vacuum separation Device bottom connects in-line by vacuum filter export pipeline, and vacuum oil transportation frequency conversion is set on the vacuum filter export pipeline Pump and vacuum filter outlet solenoid valve.
- A kind of 2. novel evacuated oil filtering unit according to claim 1, it is characterised in that：Set respectively at the top of the main fuel tank Ultrasound wave vibrating bar, pressure release electromagnetic valve, variable-frequency motor and vacuum meter and electrically heated rod are put, the variable-frequency motor is located at main fuel tank top Portion center, the main fuel tank side wall set liquid level gauge；Variable-frequency motor sets agitating paddle through main fuel tank one end, and agitating paddle is by oblique leaf Formula blade and frame blade composition.
- A kind of 3. novel evacuated oil filtering unit according to claim 2, it is characterised in that：The ultrasound wave vibrating bar and electricity What heating rod was symmetrically spaced is arranged at the top of the main fuel tank, and is fixed in the main fuel tank inwall.
- A kind of 4. novel evacuated oil filtering unit according to claim 2, it is characterised in that：The ultrasound wave vibrating bar and electricity Heating rod length is identical, and positioned at 2-5cm above the frame blade.
- A kind of 5. novel evacuated oil filtering unit according to claim 1, it is characterised in that：The coalescing filter lower end connects Logical water collector, the browser at the bottom of the catchment install draining valve.
- A kind of 6. novel evacuated oil filtering unit according to claim 1, it is characterised in that：The vacuum separator includes rotation Rotatable stainless steel ball-type disperser, circular sight glass and liquid level protection device, the rotary stainless steel ball-type disperser installation The vacuum filter main line end at the top of the vacuum separator is being stretched into, the circular sight glass seals with liquid level protection device The vacuum separator sidepiece is arranged on, and the liquid level protection device inside vacuum separator with being connected.
- A kind of 7. novel evacuated oil filtering unit according to claim 1, it is characterised in that：The refined filtration filter and absorption Filter element aperture is 0.5-0.75 μm.
- A kind of 8. novel evacuated oil filtering unit according to claim 1, it is characterised in that：The refined filtration filter and absorption The single access system of filter uses.
- A kind of 9. novel evacuated oil filtering unit according to claim 1, it is characterised in that：The refined filtration filter and absorption Filter serial or parallel connection access system uses.
- A kind of 10. novel evacuated oil filtering unit according to claim 6, it is characterised in that：The liquid level protection device with Oil transportation variable frequency pump and the connection of vacuum oil transportation variable frequency pump frequency converter are coalesced, oil transportation variable frequency pump and vacuum are coalesced by chain VFC The uninterrupted of oil transportation variable frequency pump and start and stop.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107362609A (en) * | 2017-08-03 | 2017-11-21 | 国网河南省电力公司电力科学研究院 | A kind of natural esters insulation oil vacuum oil-filtering apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107362609A (en) * | 2017-08-03 | 2017-11-21 | 国网河南省电力公司电力科学研究院 | A kind of natural esters insulation oil vacuum oil-filtering apparatus |
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