CN104593054B - A kind of method improving mineral insulating oil interfacial tension - Google Patents
A kind of method improving mineral insulating oil interfacial tension Download PDFInfo
- Publication number
- CN104593054B CN104593054B CN201510052351.1A CN201510052351A CN104593054B CN 104593054 B CN104593054 B CN 104593054B CN 201510052351 A CN201510052351 A CN 201510052351A CN 104593054 B CN104593054 B CN 104593054B
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- China
- Prior art keywords
- oil
- filter
- mineral insulating
- vacuum
- electrostatic
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
- C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
- C10G53/08—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only including at least one sorption step
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/12—Electrical isolation oil
Abstract
A kind of method improving mineral insulating oil interfacial tension, comprises the steps: 1, uses vacuum oil-filter that the moisture in pending mineral insulating oil is carried out vacuum outgas processed；2, use electrostatic oil filter that the mineral insulating oil after vacuum oil-filter processes is carried out the process of polar particulate impurity；3, use regenerative adsorption oil filter that the mineral insulating oil after electrostatic oil filter processes is carried out Regeneration Treatment；First above-mentioned steps measures the corresponding index of mineral insulating oil before carrying out, if meeting regulation, then omits this step；The present invention has the advantages that technique is simple, easily operated, processing cost is low, after being processed by the method, can remove the polar particulate in oil and polar molecule, improve the interfacial tension of oil, can avoid changing fresh oil because interfacial tension exceeds standard, save cost of changing oil, it is achieved that the recycling of resource.
Description
Technical field
The invention belongs to mineral insulating oil technical field, be specifically related to a kind of raising mineral insulating oil interface
The method of tension force.
Background technology
Mineral insulating oil refers to that being applicable to transformator, reactor, transformer, sleeve pipe, chopper etc. fills
In oil electrical equipment, play insulation, cooling and a class oil product of arc extinguishing effect.Due to mineral insulating oil master
Will be made up of various hydro carbons, being therefore in operation, affected by temperature, air, metal, electric field etc. can be by
Gradually deteriorate.In order to preferably play mineral insulating oil in many functions such as insulation, heat radiation and arc extinguishings
Effect, power system has strict requirements to the quality of oil product.
Interfacial tension is an important indicator of mineral insulating oil, it to reflection oil quality deterioration product and from
The solubility polar impurity produced in solid insulating material is the most sensitive, and its size can reflect fresh oil
Degree of purity and run oil deterioration situation.For a certain operation oil product, if interfacial tension fall
Low, show oil quality deterioration or polluted by polar substances, in oil, polar substances content increases, and then impact
Insulating properties to transformator.The solution that interfacial tension exceeds standard at present only changes fresh oil, but
Change fresh oil not only Financial cost relatively big, and the waste oil disposal that changes is improper also can make environment
Become to threaten.When the more important thing is replacing fresh oil, the transformator of absorption on the material such as insulating paper in transformator
Oil cannot thoroughly be discharged, and therefore remains in the old oil in transformator and can pollute the fresh oil newly changed, and impact is new
The quality of oil.
Summary of the invention
For solving above-mentioned problems of the prior art, it is an object of the invention to provide a kind of raising
The method of mineral insulating oil interfacial tension, after being processed by the method, can remove the polar particulate in oil
And polar molecule, improve the interfacial tension of oil, it is to avoid the economic loss caused of changing oil, save energy
Source.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is:
A kind of method improving mineral insulating oil interfacial tension, comprises the steps:
Step 1: whether the moisture first measured in mineral insulating oil meets regulation, if meeting regulation,
The most directly carry out step 2, otherwise, use vacuum oil-filter to the moisture in pending mineral insulating oil
Carry out vacuum outgas processed, method particularly includes: selecting flow is 3000 9000L/h, heating
Power is the vacuum oil-filter of 36 72kW, and the oil inlet pipe of vacuum oil-filter is connected to transformer bottom
Fuel-displaced valve, the flowline of vacuum oil-filter is connected to the oil inlet valve at the top of transformator, starts true
Air filter oil machine, adjusts the heater of vacuum oil-filter, makes oil temperature be 30-70 DEG C, working vacuum degree
≤ 133Pa, processes through circulating filtration, until the moisture of mineral insulating oil meets corresponding transformator
Till the standard gauge definite value of electric pressure；
Step 2: first measure the granule foreign in mineral insulating oil and whether greasy filth meets regulation, if
Meet regulation, directly carry out step 3, otherwise, use electrostatic oil filter to process through vacuum oil-filter
After mineral insulating oil carry out the process of granule foreign, method particularly includes: selection flow is 150-1000
The electrostatic oil filter of L/h, is connected to the fuel-displaced valve of transformer bottom by the oil inlet pipe of electrostatic oil filter,
The flowline of electrostatic oil filter is connected to the oil inlet valve at the top of transformator, starts electrostatic oil filter, adjusts
The running voltage of whole electrostatic oil filter is 11kV 14kV, makes oil temperature during operation be 60 80 DEG C,
Process through circulating filtration, until the granularity of mineral insulating oil and greasy filth content meet corresponding transformator electricity
Till the standard gauge definite value of pressure grade；
Step 3: use regenerative adsorption oil filter that the mineral insulating oil after electrostatic oil filter processes is entered
Row Regeneration Treatment, removes the polar molecule in oil, method particularly includes: select built-in high-performance micropore pole
Property molecular adsorbent regeneration filter element be that 3-6 props up, regeneration filter element in high-performance micropore polar molecule adsorbent
Weight is the regenerative adsorption oil filter of 5-10kg, and the oil inlet pipe of regenerative adsorption oil filter is connected to transformation
Fuel-displaced valve bottom device, the flowline of regenerative adsorption oil filter is connected to the inlet valve at the top of transformator
Door, starts regenerative adsorption oil filter, and the flow adjusting regenerative adsorption oil filter is 1000
9000L/h, operating pressure≤2.0MPa, oil temperature when making operation is 20 60 DEG C, is circulated
Filtration treatment, if operating pressure is beyond setting, then changes regeneration filter element, until transformer oil
Till interfacial tension meets the standard gauge definite value of corresponding transformer voltage grade.
The present invention has the advantages that technique is simple, easily operated, processing cost is low, at the method
After reason, the polar particulate in oil and polar molecule can be removed, improve the interfacial tension of oil, can avoid
Change fresh oil because interfacial tension exceeds standard, saved cost of changing oil, it is achieved that the recycling of resource.
Detailed description of the invention
By detailed description of the invention, the present invention is described in further detail below.
Embodiment one:
The greasy filth of pending mineral insulating oil and granularity meet operation oil standard requirement.So saving step
Rapid 2, use step 1 and step 3 to process.Detailed process is as follows:
The oil inlet pipe of vacuum oil-filter (flow 6000L/h) is connected to the fuel-displaced valve of transformer bottom,
The flowline of vacuum oil-filter is connected to the oil inlet valve at the top of transformator, starts vacuum oil-filter, adjusts
The power of the heater of whole good vacuum oil-filter, makes oil temperature be maintained at 50 DEG C, adjusts working vacuum degree and is
130Pa, processes through circulating filtration, and the moisture of detection transformer oil reaches to stop during 5mg/L.Then
Removing vacuum oil-filter, the oil inlet pipe connecing regenerative adsorption oil filter is connected to the delivery valve of transformer bottom
Door, the flowline of regenerative adsorption oil filter is connected to the oil inlet valve at the top of transformator, starts regeneration and inhales
(flow of regenerative adsorption oil filter is flow 6000L/h to attached oil filter, and oil temperature is 50 DEG C, work pressure
Power is≤2.0MPa), it is circulated filtration treatment, if operating pressure is beyond 1.8MPa, then changes
Regeneration filter element, amounts to replacing filter element 3 and overlaps, and before and after detection process, the Comparative result of transformer oil see table
1。
Table 1
Case study on implementation two:
The moisture of pending transformer oil meets operation oil standard requirement.So saving step 1, use
Step 2 and step 3 process.Detailed process is as follows:
The oil inlet pipe of electrostatic oil filter (flow 800L/h) is connected to the fuel-displaced valve of transformer bottom, quiet
The flowline of electrofiltration oil machine is connected to the oil inlet valve at the top of transformator, starts electrostatic oil filter, adjusts
The running voltage of electrostatic oil filter is 12kV 13kV, processes through circulating filtration, until transformer oil
Granularity less than NAS16383 level and greasy filth content less than 0.02% till.Then electrostatic filter is removed
Oil machine, the oil inlet pipe connecing regenerative adsorption oil filter is connected to the fuel-displaced valve of transformer bottom, regenerative adsorption
The flowline of oil filter is connected to the oil inlet valve at the top of transformator, starts regenerative adsorption oil filter (again
The flow of raw absorption oil filter is flow 8000L/h, and oil temperature is 55 DEG C, and operating pressure is≤2.0MPa),
It is circulated filtration treatment, if operating pressure is beyond 1.8MPa, then changes regeneration filter element, amount to
Changing filter element 4 to overlap, before and after detection processes, the Comparative result of transformer oil see table 2:
Table 2
Case study on implementation three:
The indices of pending mineral insulating oil all exceeds standard, and uses step 1, step 2 and step 3
Process.Detailed process is as follows:
The oil inlet pipe of vacuum oil-filter (flow 5000L/h) is connected to the fuel-displaced valve of transformer bottom,
The flowline of vacuum oil-filter is connected to the oil inlet valve at the top of transformator, starts vacuum oil-filter, adjusts
The power of the heater of whole good vacuum oil-filter, makes oil temperature be maintained at 50 DEG C, adjusts working vacuum degree and is
125Pa, processes through circulating filtration, and the moisture of detection transformer oil reaches to stop during 4mg/L.Then
Remove vacuum oil-filter, the oil inlet pipe of electrostatic oil filter (flow 300L/h) is connected to transformer bottom
Fuel-displaced valve, the flowline of electrostatic oil filter is connected to the oil inlet valve at the top of transformator, starts electrostatic
Oil filter, the running voltage adjusting electrostatic oil filter is 11kV 12kV, processes through circulating filtration, directly
To transformer oil granularity less than NAS16383 level and greasy filth content less than 0.02%.Then
Removing electrostatic oil filter, the oil inlet pipe connecing regenerative adsorption oil filter is connected to the delivery valve of transformer bottom
Door, the flowline of regenerative adsorption oil filter is connected to the oil inlet valve at the top of transformator, starts regeneration and inhales
(flow of regenerative adsorption oil filter is flow 7000L/h to attached oil filter, and oil temperature is 55 DEG C, work pressure
Power is≤2.0MPa), it is circulated filtration treatment, if operating pressure is beyond 1.8MPa, then changes
Regeneration filter element, amounts to replacing filter element 2 and overlaps, and before and after detection process, the Comparative result of transformer oil see table
3
Table 3
Claims (1)
1. the method improving mineral insulating oil interfacial tension, it is characterised in that: include walking as follows
Rapid:
Step 1: whether the moisture first measured in mineral insulating oil meets regulation, if meeting regulation,
The most directly carry out step 2, otherwise, use vacuum oil-filter to the moisture in pending mineral insulating oil
Carry out vacuum outgas processed, method particularly includes: selecting flow is 3000 9000L/h, heating
Power is the vacuum oil-filter of 36 72kW, and the oil inlet pipe of vacuum oil-filter is connected to transformer bottom
Fuel-displaced valve, the flowline of vacuum oil-filter is connected to the oil inlet valve at the top of transformator, starts true
Air filter oil machine, the heter temperature adjusting vacuum oil-filter is 30-70 DEG C, working vacuum degree≤133Pa,
Process through circulating filtration, until the moisture of mineral insulating oil meets corresponding transformer voltage grade
Till standard gauge definite value；
Step 2: first measure the polar particulate impurity in mineral insulating oil and whether greasy filth meets regulation,
If meeting regulation, directly carrying out step 3, otherwise, using electrostatic oil filter that mineral insulating oil is carried out
The process of polar particulate impurity, method particularly includes: the electrostatic filter selecting flow to be 150-1000L/h
Oil machine, is connected to the fuel-displaced valve of transformer bottom by the oil inlet pipe of electrostatic oil filter, electrostatic oil filter
Flowline is connected to the oil inlet valve at the top of transformator, starts electrostatic oil filter, adjusts electrostatic oil filter
Running voltage be 11kV 14kV, oil temperature when making operation is 60 80 DEG C, through circulating filtration
Process, until the granularity of mineral insulating oil and greasy filth content meet the mark of corresponding transformer voltage grade
Till quasi-setting；
Step 3: use regenerative adsorption oil filter that mineral insulating oil carries out Regeneration Treatment, remove in oil
Polar molecule, method particularly includes: select built-in high-performance micropore polar molecule adsorbent reactivation filter element
Propping up for 3-6, in regeneration filter element, high-performance micropore polar molecule adsorbent weight is the regeneration of 5-10kg
Absorption oil filter, is connected to the fuel-displaced valve of transformer bottom by the oil inlet pipe of regenerative adsorption oil filter, then
The flowline of raw absorption oil filter is connected to the oil inlet valve at the top of transformator, starts regenerative adsorption oil strain
Machine, the flow adjusting regenerative adsorption oil filter is 1000 9000L/h, operating pressure≤2.0MPa,
Oil temperature when making operation is 20 60 DEG C, is circulated filtration treatment, if operating pressure is beyond rule
Definite value, then change regeneration filter element, until the interfacial tension of transformer oil meets corresponding transformer voltage etc.
Till the standard gauge definite value of level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052351.1A CN104593054B (en) | 2015-01-30 | 2015-01-30 | A kind of method improving mineral insulating oil interfacial tension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052351.1A CN104593054B (en) | 2015-01-30 | 2015-01-30 | A kind of method improving mineral insulating oil interfacial tension |
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| Publication Number | Publication Date |
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| CN104593054A CN104593054A (en) | 2015-05-06 |
| CN104593054B true CN104593054B (en) | 2016-09-28 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106783039B (en) * | 2016-12-02 | 2018-04-24 | 国网四川省电力公司电力科学研究院 | The structural optimization method of hybrid insulation systems oil-immersed transformer |
| CN107287016B (en) * | 2017-07-10 | 2023-06-20 | 西安热工研究院有限公司 | Oxygen-enriched super-polar regeneration method and regenerator for wind power gear oil |
| CN109671555A (en) * | 2018-11-14 | 2019-04-23 | 沈阳大型电力变压器维修有限公司 | A kind of oil filtering unit for EHV transformer electrification oil strain |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055381A (en) * | 1991-04-09 | 1991-10-16 | 吉林市通用机械情报研究所 | Super purifier of insulating oil |
| CN2122865U (en) * | 1992-04-05 | 1992-11-25 | 谭书贵 | Multi-funcitonal insulating oil regenerator |
| CN2179873Y (en) * | 1993-05-31 | 1994-10-19 | 上海交通大学 | Used oil purifying regenerator for mineral oil |
| CN2181982Y (en) * | 1993-12-11 | 1994-11-09 | 山东省电力试验研究所 | Purifying treatment apparatus for oils |
| CN2589048Y (en) * | 2002-10-28 | 2003-12-03 | 齐齐哈尔电业局 | Electricity purifying insulating oil purifying installation |
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