CN106092657A - A kind of main transformer oil sample extracting method - Google Patents
A kind of main transformer oil sample extracting method Download PDFInfo
- Publication number
- CN106092657A CN106092657A CN201610406921.7A CN201610406921A CN106092657A CN 106092657 A CN106092657 A CN 106092657A CN 201610406921 A CN201610406921 A CN 201610406921A CN 106092657 A CN106092657 A CN 106092657A
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- China
- Prior art keywords
- oil
- oil sample
- sampling
- transformator
- vacuum pump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1062—Sampling under constant temperature, pressure, or the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of main transformer oil sample extracting method, sampling instrument is used to extract oil sample, concretely comprise the following steps: first, open the control valve of two conduits, then, opening vacuum pump, the air in vacuum pump extraction glass reagent bottle makes its internal generation negative pressure, thus by the oil sample body suction glass reagent bottle in transformator；Meanwhile, temperature control heating device heats, make transformator draw oil sample mouth outlet oil temperature constant, it is ensured that Extraction rate.The present invention uses the vacuum oil sampling method possessing attemperating unit, by the improvement to oil sampling instrument, make oil sampling not by extraneous natural environment and climatic effect, substantially increase oil sampling qualification rate, testing crew can single operate simultaneously, simple to operate, decrease cost of labor and improve oil sampling efficiency, efficiently solving transformer oil problem of sampling.
Description
Technical field
The invention belongs to technical field of electric power construction, especially a kind of main transformer oil sample extracting method.
Background technology
Along with the lifting of electric pressure, the requirement to transformator installation, each side technical specification of O&M the most day by day improves,
Can the quality of transformer oil quality can affect transformator properly functioning, even jeopardizes the safe and stable operation of transformator.Therefore
During transformator installation and O&M, transformer oil quality monitoring is particularly important.The achievement in research of this project is mainly greatly
Type transformator is installed, is joined and in maintenance process, the on-the-spot Key experiments project drawn oil sample for transformator, ensures large-scale transformation
The qualification rate that device draws oil sample, it is ensured that equipment safe and reliable operation.
High-power transformer oil business process show up at fresh oil, after residue management, Circulation and Hot Oil Spray oil business process, join and overhauled
Being required to be sampled transformer oil censorship in journey, the main project of censorship includes: electrical strength, water content, dielectric loss
Factor and granularity.
Traditional transformator draw oil sample method require as follows:
Sampling instrument: conventional analysis sampling bottle is 500mL～1000mL ground tool plug reagent bottle, and water content in oil is containing measuring
Determining and oil dissolved gas (total air content in oil) analysis syringe, sampling probe tube in oil drum, in oil tank or tank car
Sampling sample spoon.
Sampling requirement:
1) oil sample should be able to represent apparatus body oil, should avoid sampling at oil circulation not sufficiently dead angle.Typically should be from
The sampling valve sampling of device bottom, under special circumstances can be in different sampling point samplings.
2) sampling process requires totally-enclosed, i.e. sampling connected mode is reliable, dissolved water in fuel can not be allowed to divide and gas ease
Dissipate, air (air of remaining in necessary emptying sample connection) can not be mixed into, oil must not produce during operation bubble.
3) sampling should be carried out at fine day, and oil sample should keep in Dark Place.
Visible tradition draws oil sample method, and tool kind is various, operation complexity, requires tight to weather conditions and field condition
Lattice, higher to testing crew operation level requirement, draw oil sample in construction difficulty the most in the winter time, and the qualification rate therefore drawn oil sample is difficult
To ensure.Often occur owing to weather reason causes can not carrying out in oil sampling work or oil sampling process in actual mechanical process
Occur deviation to cause oil test defective, engineering construction, equipment O&M cost will be significantly greatly increased, delay the normal progress of engineering, fall
Low construction quality, thus affect the duration, the equipment that even affects is properly functioning.
Summary of the invention
In place of it is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of design science, rational in infrastructure, use
Convenient, economical and practical main transformer oil sample extracting method.
The present invention solves it and technical problem is that and take techniques below scheme to realize:
A kind of main transformer oil sample extracting method, it is characterised in that: use sampling instrument to extract oil sample, concretely comprise the following steps:
First, open the control valve of two conduits, then, open vacuum pump, in the air in vacuum pump extraction glass reagent bottle makes it
Portion produces negative pressure, thus by the oil sample body suction glass reagent bottle in transformator；Meanwhile, temperature control heating device adds
Heat, make transformator draw oil sample mouth outlet oil temperature constant, it is ensured that Extraction rate.
And, described sampling instrument includes glass reagent bottle, conduit, vacuum pump and temperature control heating device, glass reagent
Bottle seals installs sealing plug, and on sealing plug, interval is coated with the end of two conduits, and two conduits are mounted on control valve, its
In the other end of a conduit be communicated to the oil sample body of inside transformer, another root conduit connection vacuum pump；At transformator
Outside the conduit of sample tap position, temperature control heating device is installed.
Advantages of the present invention and good effect be:
1, this method is not affected by the external environment, and uses a kind of transformator oil sampling tool possessing function of temperature control, adapts to
Under various weather conditions, transformator is extracted oil sample.
2, this method sampling qualification rate is high, and the method is to draw oil sample under vacuum conditions, it is to avoid oil sample connects with external environment condition
Touch, meet the requirement of transformer oil sampling, it is ensured that the Stability and dependability of this instrument, it is ensured that draw oil sample qualification rate simultaneously.
3, short during this method operation, use existing equipment and one main transformer of method time of drawing oil sample at about 90min,
And use this device to draw oil sample and will foreshorten to 30min sample time, it is reduced to 1/3rd sample time, substantially increases work
Efficiency, and, instrument should be simple to operate, can be completed operation by single, reduce the impact on sampling result of the testing crew experience.
4, the present invention uses the vacuum oil sampling method possessing attemperating unit, by the improvement to oil sampling instrument so that
Oil sampling, by extraneous natural environment and climatic effect, substantially increases oil sampling qualification rate, simultaneously testing crew can single enter
Row operation, simple to operate, decrease cost of labor and improve oil sampling efficiency, efficiently solving transformer oil sampling and ask
Topic.
Accompanying drawing explanation
Fig. 1 is that oil sample extracts structural representation.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings and by specific embodiment, and following example are descriptive
, it not determinate, it is impossible to limit protection scope of the present invention with this.
A kind of main transformer oil sample extracting method,
Use special sampling instrument, including glass reagent bottle 3, conduit 4, vacuum pump 5 and temperature control heating device 2, glass
Reagent bottle seals installs sealing plug, can use plug or cork closure, and on sealing plug, interval is coated with the end of two conduits 4
Portion, two conduits are mounted on control valve, and wherein the other end of a conduit is communicated to the oil sample body within transformator 1,
Another root conduit connection vacuum pump；
Outside the conduit of the sample tap position of transformator, temperature control heating device is installed, this temperature control heating device external temperature
Controller (not shown), according to environment regulation regulation probe temperature.
Sampling method:
First, opening the control valve of two conduits, open vacuum pump, the air in vacuum pump extraction glass reagent bottle makes it
Internal generation negative pressure, thus by the oil sample body suction glass reagent bottle in transformator；
Temperature control heating device heats, make transformator draw oil sample mouth outlet oil temperature constant, it is ensured that Extraction rate, Jin Erti
High transformer draws oil sample efficiency.
Meanwhile, occur oil to reveal during using this sampling instrument that transformator can be avoided to draw oil sample, waste oil can be realized
100% reclaims, it is to avoid environmental pollution, has preferable environmental benefit and a social benefit.
Although disclosing embodiments of the invention and accompanying drawing for the purpose of illustration, but those skilled in the art can managing
Solving: without departing from the spirit and scope of the present invention, various replacements, to change and modifications be all possible, therefore, and the model of the present invention
Enclose and be not limited to embodiment and accompanying drawing disclosure of that.
Claims (2)
1. a main transformer oil sample extracting method, it is characterised in that: use sampling instrument to extract oil sample, concretely comprise the following steps: be first
First, opening the control valve of two conduits, then, open vacuum pump, the air in vacuum pump extraction glass reagent bottle makes inside it
Produce negative pressure, thus by the oil sample body suction glass reagent bottle in transformator；Meanwhile, temperature control heating device heats,
Make transformator draw oil sample mouth outlet oil temperature constant, it is ensured that Extraction rate.
Main transformer oil sample extracting method the most according to claim 1, it is characterised in that: described sampling instrument includes glass
Reagent bottle, conduit, vacuum pump and temperature control heating device, glass reagent bottle seals installs sealing plug, and on sealing plug, interval installs
Having the end of two conduits, two conduits are mounted on control valve, wherein the other end of a conduit is communicated in transformator
The oil sample body in portion, another root conduit connection vacuum pump；Outside the conduit of the sample tap position of transformator, temperature control heating is installed
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610406921.7A CN106092657A (en) | 2016-06-08 | 2016-06-08 | A kind of main transformer oil sample extracting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610406921.7A CN106092657A (en) | 2016-06-08 | 2016-06-08 | A kind of main transformer oil sample extracting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106092657A true CN106092657A (en) | 2016-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610406921.7A Pending CN106092657A (en) | 2016-06-08 | 2016-06-08 | A kind of main transformer oil sample extracting method |
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| Country | Link |
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| CN (1) | CN106092657A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207957A (en) * | 2018-11-22 | 2020-05-29 | 于双斌 | Method for collecting liquid in negative pressure device into closed bottle |
| CN112326355A (en) * | 2020-11-10 | 2021-02-05 | 中国石油大学(华东) | Oil gas field development is with oil appearance collection system |
| CN112615293A (en) * | 2021-01-21 | 2021-04-06 | 国网江苏省电力有限公司徐州供电分公司 | Portable oil purifying and probing device for on-load switch oil chamber of transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020083781A1 (en) * | 2000-12-29 | 2002-07-04 | Golner Thomas M. | Oil sampling system and method for electrical power devices |
| US20080022786A1 (en) * | 2004-01-14 | 2008-01-31 | Heiner Sann | Device And Method For Taking Samples |
| CN102607891A (en) * | 2012-03-19 | 2012-07-25 | 上海市电力公司 | Sampling device for insulating oil of cable terminal |
| CN104048851A (en) * | 2014-06-09 | 2014-09-17 | 国家电网公司 | Transformer oil sampling device and method |
| CN204789039U (en) * | 2015-07-08 | 2015-11-18 | 同济大学 | Device is extracted in deposit moisture vacuum |
-
2016
- 2016-06-08 CN CN201610406921.7A patent/CN106092657A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020083781A1 (en) * | 2000-12-29 | 2002-07-04 | Golner Thomas M. | Oil sampling system and method for electrical power devices |
| US20080022786A1 (en) * | 2004-01-14 | 2008-01-31 | Heiner Sann | Device And Method For Taking Samples |
| CN102607891A (en) * | 2012-03-19 | 2012-07-25 | 上海市电力公司 | Sampling device for insulating oil of cable terminal |
| CN104048851A (en) * | 2014-06-09 | 2014-09-17 | 国家电网公司 | Transformer oil sampling device and method |
| CN204789039U (en) * | 2015-07-08 | 2015-11-18 | 同济大学 | Device is extracted in deposit moisture vacuum |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国国家质量监督检验检疫总局等: "《GB/T 27867-2011 石油液体管线自动取样法》", 30 December 2011, 中国标准出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207957A (en) * | 2018-11-22 | 2020-05-29 | 于双斌 | Method for collecting liquid in negative pressure device into closed bottle |
| CN112326355A (en) * | 2020-11-10 | 2021-02-05 | 中国石油大学(华东) | Oil gas field development is with oil appearance collection system |
| CN112615293A (en) * | 2021-01-21 | 2021-04-06 | 国网江苏省电力有限公司徐州供电分公司 | Portable oil purifying and probing device for on-load switch oil chamber of transformer |
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Application publication date: 20161109 |
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