CN108630401A - A kind of oil filter oil strain method based on synthesis ester oil partial alternative original transformer oil - Google Patents
A kind of oil filter oil strain method based on synthesis ester oil partial alternative original transformer oil Download PDFInfo
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- CN108630401A CN108630401A CN201810327858.7A CN201810327858A CN108630401A CN 108630401 A CN108630401 A CN 108630401A CN 201810327858 A CN201810327858 A CN 201810327858A CN 108630401 A CN108630401 A CN 108630401A
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- Prior art keywords
- oil
- transformer
- filter
- oil filter
- synthesis ester
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Insulating Materials (AREA)
- Housings And Mounting Of Transformers (AREA)
- Transformer Cooling (AREA)
Abstract
The present invention discloses a kind of oil filter oil strain method based on synthesis ester oil partial alternative original transformer oil, includes the following steps：First stage：Original insulating oil in transformer is pumped by pipeline inside oil filter by oil filter, former mineral insulating oil is directly introduced into dirty oil tank, then, synthesis ester oil is introduced inside oil filter, pass through normal oil pressure, this synthesis ester oil is imported into inside transformer, until this process continues to that the ratio of synthesis ester oil and total oil mass in transformer reaches predetermined value；Second stage：By mixed transformer oil in transformer by being connected into flowline with oil filter timesharing, water removal filter process is completed inside oil filter, micro- water monitoring reaches standard requirement to this process lasts in oil in transformer.The present invention can significantly improve insulation recovery efficiency of the oil filter to transformer, a greater degree of water content reduced in insulating board so that the total moisture content in transformer drops to safer level.
Description
Technical field
The present invention relates to electric power enterprise and power equipment operation and maintenance fields, are examined more particularly to a kind of transformer state
Repair maintenance area.
Background technology
China operation power transformer, the overwhelming majority be oil-immersed transformer, with operation the time limit, manufacturing process,
The problems such as working environment so that power transformer is in operation there may be some potential safety problems, such as inside transformer
Transformer carries out water with external environment, gas exchanges, and the excessively high generation electric discharge of local temperature in transformer, insulating oil is in a variety of field actions
Lower generation aging, degradation, generate some impurity, generate aging water etc..Either water caused by manufacturing process or service condition
The increase divided, can make transformer make moist, to threaten its operational safety and service life.
For transformer the problems such as making moist that may be present, insulation recovery can be carried out to transformer using oil filter at present
Operation.But current oil strain method is handled transformer only on the basis of original transformer, filters out moisture
Effect be largely dependent upon oil filtration time and temperature, and due in insulating oil and insulating board, the migration journey of moisture
Degree, water translocation rate, the solubility of moisture in the oil cause oil filter to the insulation recovery effect of transformer in short-term
It is interior to be relatively inaccessible to ideal state.
Invention content
The purpose of the present invention is to provide a kind of oil filter oil strains based on synthesis ester oil partial alternative original transformer oil
Method, to solve the above technical problems.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of oil filter oil strain method based on synthesis ester oil partial alternative original transformer oil, includes the following steps：
First stage：Original insulating oil in transformer is pumped by pipeline inside oil filter by oil filter, directly will be former
Mineral insulating oil introduces dirty oil tank, then, synthesis ester oil is introduced inside oil filter, by normal oil pressure, by this synthetic ester
Oil imports inside transformer, until this process continues to that the ratio of synthesis ester oil and total oil mass in transformer reaches predetermined value；
Second stage：By mixed transformer oil in transformer by being connected into flowline with oil filter timesharing,
Water removal filter process is completed inside oil filter, micro- water monitoring reaches standard requirement to this process lasts in oil in transformer.
Further, after oil strain reaches standard, using oil filter or other means, the miscella in transformer is replaced
At the original insulating oil of transformer.
Further, the water solubility for synthesizing ester oil is more than the water solubility of original insulating oil in transformer.
Further, the volume ratio that the synthesis ester oil in first stage control transformer accounts for total oil mass is 10~70%.
Further, in second stage, the temperature controlled in oil filter in vacuum chamber is 5~6 DEG C higher than temperature of oil in transformer.
Further, in second stage, the temperature in oil filter in vacuum chamber is less than or equal to 80 DEG C.
The present invention it is a kind of based on substitute synthesis ester oil oil filter oil strain method, the system utilized include oil filter,
Synthesize ester oil holding vessel, waste oil collecting tank, several pipelines, solenoid valve and single-chip computer control system.Oil filter working procedure is by list
Piece machine program controls, by being the new synthetic ester for meeting insulation oil standard by the insulating oil partial replacement of original inside transformer
Oil makes the moisture in transformer in cardboard more thoroughly equably move in miscella in the normal circulation work of oil filter,
To reach insulation recovery effect, finally after oil strain, the former transformer oil of same specification is replaced into miscella, is reached not
Change the purpose of the original service condition of transformer.
Compared with prior art, the invention has the advantages that：
(1) compared with the oil strain method of traditional oil filter, the present invention can significantly improve insulation of the oil filter to transformer
Restore efficiency, a greater degree of water content reduced in insulating board so that the total moisture content in transformer drops to safer
Level.
(2) present invention can improve the remaining life of transformer, improve its economic value.
(3) present invention range on probation is wide, and transplantability is strong, does not change original running environment of transformer, is suitable for various electricity
Press the transformer of grade.
Description of the drawings
Fig. 1 is the system schematic for the oil filter oil strain for synthesizing ester oil partial alternative original transformer oil；
Synthesis ester oil and silicone oil, mineral oil breakdown voltage and water content comparison diagram when Fig. 2 is 20 DEG C.
Specific implementation mode
The following further describes the present invention with reference to the drawings.
Refering to Figure 1, the present invention discloses a kind of oil filter based on synthesis ester oil partial alternative original transformer oil
Oil strain method, oil filter and transformer body are attached, and oil filter connects synthetic ester oil tank by uniguide, and oil filter is same
When dirty oil tank connected by uniguide.
Ensure that oil mass is sufficient in synthetic ester oil storage tank, can be replaced former insulating oil.By oil filter operating instruction, open
Dynamic oil filter, entire oil strain process are divided into two stages, and the first stage is replacement process, and second stage is oil strain process.
In one stage, original insulating oil in transformer is pumped by pipeline inside oil filter by oil filter, and electromagnetism is controlled by program
Former mineral insulating oil is directly introduced dirty oil tank by threshold switch, then, synthesis ester oil is introduced from tank inside oil filter, is passed through
This synthesis ester oil is imported inside transformer by normal oil pressure, this process to be continued until synthesis ester oil in transformer with
Until the ratio of total oil mass reaches predetermined value.Second process is oil filter tradition oil strain process, i.e., will be mixed in transformer
Transformer oil completes water removal filter process by being connected into flowline with oil filter timesharing inside oil filter, this process is wanted
It is continued until to until micro- water monitoring is up to state standards in oil in transformer.After oil strain reaches standard, oil filter is utilized
Or other means, the miscella in transformer is substituted for the original insulating oil of transformer, does not change transformer fortune to reach
The purpose of row condition.
Two lime lights in the present invention：
(1) the original insulating oil of transformer needs to be substituted for the percentage that the part for synthesizing ester oil accounts for the total oil mass of transformer,
The percentage cannot constitute a threat to the safe operation of transformer, and experimental study obtains, which insulate according to transformer primary
The degradation of oil, range intervals are safe range between 10~70%, and former transformer insulation oil deteriorates more serious, percentage
Corresponding ratio is higher；
(2) water solubility of synthesis ester oil is larger, therefore the temperature control in vacuum chamber should increase, in a certain range
Interior, temperature increases the aging unobvious for silicone oil and common mineral insulating oil, and therefore, the temperature in vacuum chamber should suitably increase
5~6 DEG C, but no more than 80 DEG C.
The characteristics of technical scheme of the present invention is：
(1) it is much larger than plain mineral oil using the water solubility of synthesis ester oil, it can be by synthesizing ester oil and mineral oil
Mixing, the moisture in insulating board is greatly migrated into oil and is filtered out.
(2) transformer is by the insulation recoveries operation such as oil filter water removal, removal of impurities so that the bulk life time of transformer obtains one
The extension for determining degree obtains better economic benefit.
(3) synthesis ester oil has more more environmentally-friendly than conventional mineral oil, meets the demand for development of green economy, at present synthetic ester
In the case of oil price lattice are higher, the method for mixing the two certain proportion is taken, can both improve the water of transformer insulated recovery
It is flat, and can ensure more economical, extension transformer under safety condition service life.
Claims (6)
1. it is a kind of based on synthesis ester oil partial alternative original transformer oil oil filter oil strain method, which is characterized in that including with
Lower step：
First stage：Original insulating oil in transformer is pumped by pipeline inside oil filter by oil filter, directly will part original
Mineral insulating oil introduces dirty oil tank, then, synthesis ester oil is introduced inside oil filter, by normal oil pressure, by this synthetic ester
Oil imports inside transformer, until this process continues to that the ratio of synthesis ester oil and total oil mass in transformer reaches predetermined value；
Second stage：By mixed transformer oil in transformer by being connected into flowline with oil filter timesharing, in oil strain
Water removal filter process is completed inside machine, micro- water monitoring reaches standard requirement to this process lasts in oil in transformer.
2. a kind of oil filter oil strain side based on synthesis ester oil partial alternative original transformer oil according to claim 1
Method, which is characterized in that after oil strain reaches standard, using oil filter or other means, the miscella in transformer is substituted for
The original insulating oil of transformer.
3. a kind of oil filter oil strain side based on synthesis ester oil partial alternative original transformer oil according to claim 1
Method, which is characterized in that the water solubility for synthesizing ester oil is more than the water solubility of original insulating oil in transformer.
4. a kind of oil filter oil strain side based on synthesis ester oil partial alternative original transformer oil according to claim 1
Method, which is characterized in that the volume ratio that the synthesis ester oil in first stage control transformer accounts for total oil mass is 10~70%.
5. a kind of oil filter oil strain side based on synthesis ester oil partial alternative original transformer oil according to claim 1
Method, which is characterized in that in second stage, the temperature controlled in oil filter in vacuum chamber is 5~6 DEG C higher than temperature of oil in transformer.
6. a kind of oil filter oil strain side based on synthesis ester oil partial alternative original transformer oil according to claim 5
Method, which is characterized in that in second stage, the temperature in oil filter in vacuum chamber is less than or equal to 80 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810327858.7A CN108630401B (en) | 2018-04-12 | 2018-04-12 | Oil filtering method of oil filter based on partial replacement of original transformer oil by synthetic ester oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810327858.7A CN108630401B (en) | 2018-04-12 | 2018-04-12 | Oil filtering method of oil filter based on partial replacement of original transformer oil by synthetic ester oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108630401A true CN108630401A (en) | 2018-10-09 |
| CN108630401B CN108630401B (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810327858.7A Active CN108630401B (en) | 2018-04-12 | 2018-04-12 | Oil filtering method of oil filter based on partial replacement of original transformer oil by synthetic ester oil |
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| CN (1) | CN108630401B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448962A (en) * | 2018-12-04 | 2019-03-08 | 国网浙江省电力有限公司电力科学研究院 | Transformer oil paper insulation model insulation performance recovery system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5295099A (en) * | 1976-02-04 | 1977-08-10 | Nissin Electric Co Ltd | Method of refining orthophosphoric acid ester oil for electric insulation |
| CN1961383A (en) * | 2004-05-28 | 2007-05-09 | 阿雷瓦T&D股份有限公司 | High performance dielectric oil and the use thereof in high voltage electrical equipment |
| JP2012023262A (en) * | 2010-07-16 | 2012-02-02 | Aichi Electric Co Ltd | Drying method of oil-filled electric apparatus |
| CN202405055U (en) * | 2012-01-01 | 2012-08-29 | 长春工程学院 | Oil replacement device for oil immersed power transformer |
| CN102908989A (en) * | 2012-09-29 | 2013-02-06 | 西安热工研究院有限公司 | High-performance microporous adsorbent for regeneration treatment of oil used in electric power industry, and preparation method of high-performance microporous adsorbent |
-
2018
- 2018-04-12 CN CN201810327858.7A patent/CN108630401B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5295099A (en) * | 1976-02-04 | 1977-08-10 | Nissin Electric Co Ltd | Method of refining orthophosphoric acid ester oil for electric insulation |
| CN1961383A (en) * | 2004-05-28 | 2007-05-09 | 阿雷瓦T&D股份有限公司 | High performance dielectric oil and the use thereof in high voltage electrical equipment |
| JP2012023262A (en) * | 2010-07-16 | 2012-02-02 | Aichi Electric Co Ltd | Drying method of oil-filled electric apparatus |
| CN202405055U (en) * | 2012-01-01 | 2012-08-29 | 长春工程学院 | Oil replacement device for oil immersed power transformer |
| CN102908989A (en) * | 2012-09-29 | 2013-02-06 | 西安热工研究院有限公司 | High-performance microporous adsorbent for regeneration treatment of oil used in electric power industry, and preparation method of high-performance microporous adsorbent |
Non-Patent Citations (1)
| Title |
|---|
| 李基成: "合成酯绝缘液在海上风电场变压器中的应用", 《电气时代》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448962A (en) * | 2018-12-04 | 2019-03-08 | 国网浙江省电力有限公司电力科学研究院 | Transformer oil paper insulation model insulation performance recovery system and method |
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| CN108630401B (en) | 2020-05-22 |
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