CN110501055A - The measurement method of installation for transformer oil level based on supersonic sounding - Google Patents
The measurement method of installation for transformer oil level based on supersonic sounding Download PDFInfo
- Publication number
- CN110501055A CN110501055A CN201810469127.6A CN201810469127A CN110501055A CN 110501055 A CN110501055 A CN 110501055A CN 201810469127 A CN201810469127 A CN 201810469127A CN 110501055 A CN110501055 A CN 110501055A
- Authority
- CN
- China
- Prior art keywords
- conservator
- signal
- oil level
- installation
- processing module
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The measurement method of the invention discloses a kind of installation for transformer oil level based on supersonic sounding is equipped with a ultrasonic probe, signal acquisition module, signal processing module and display module；When measurement, the ultrasonic probe is attached at the outer wall of conservator and moves up and down along the short transverse of conservator, the metal wall thickness and the insulating oil inside conservator that its ultrasonic longitudinal wave issued can pass through conservator, ultrasonic longitudinal wave generates reflection signal on the different medium interface passed through and is received by signal acquisition module, and the reflection signal number that signal processing module is measured according to the conservator position at respective heights controls display module to indicate the reflection signal number measured；The oil pillow oil level, which is located at, can receive between conservator height corresponding to primary event signal and two secondary reflection signals.The present invention fast and accurately can detect installation for transformer inside oil level in the case where transformer is not stopped transport, and measurement is stablized and repeatability is high.
Description
Technical field
The present invention relates to electric system the field of test technology more particularly to a kind of installation for transformer oil based on supersonic sounding
The measurement method of position.
Background technique
Hub device of the transformer as electric system, the close phase of safety and stablization of operational reliability and electric system
It closes, and insulating materials is immersed in transformer oil not only and inside transformer dielectric strength can be improved, while can also avoid tide
The erosion of gas.Therefore the insulating oil oil mass of inside transformer number not only influence the dielectric level of transformer equipment, while shadow
Ring heat-sinking capability in the service life and operational process of inside transformer insulating materials.Oil pillow oil level is excessively high, transformer it is fully loaded or
It will cause the failures such as transformer oil spilling when overlond running；Oil level is too low, it is likely that so that lead or iron core directly contact sky
Gas causes inside transformer dielectric level to be greatly reduced, and alarm occurs and even trips.Oil meter connecting rod bending, fracture and table simultaneously
Meter pointer falls off, vacation oil level phenomenon caused by the reasons such as failure, also considerably increases traditional artificial visual inspection when oil level exception
Look into the possibility of erroneous judgement.Thus, how in the case where transformer is not stopped transport, fast and accurately to installation for transformer inside oil level
It measures, installation for transformer oil level is maintained within the scope of regime values, become and perplex engineers and technicians' for a long time
Problem and challenge.
Summary of the invention
The measurement method of the present invention provides a kind of installation for transformer oil level based on supersonic sounding, which overcome background skills
The deficiencies in the prior art described in art.
The technical solution adopted by the present invention to solve the technical problems is:
The measurement method of installation for transformer oil level based on supersonic sounding, be equipped with a ultrasonic probe, signal acquisition module, with
The signal processing module with microcontroller of signal acquisition module connection and the display mould being connect with the signal processing module
Block；
When measurement, which is attached at the outer wall of conservator and moves up and down along the short transverse of conservator, issues
The metal wall thickness and the insulating oil inside conservator that ultrasonic longitudinal wave can pass through conservator, ultrasonic longitudinal wave is in the different medium interface passed through
Upper generation is reflected signal and is received by signal acquisition module, and signal acquisition module receives reflection signal backward signal processing module
It feeds back and is handled to obtain oil pillow oil level by signal processing module:
When air interface generates reflection, signal acquisition module to ultrasonic longitudinal wave in the first metal sidewall of conservator and conservator
Primary event signal is received, when ultrasonic longitudinal wave sequentially passes through the first metal sidewall and conservator interior insulation oil of conservator, signal
The primary event signal that acquisition module acquisition ultrasonic longitudinal wave is generated in the interface of the first metal sidewall and insulating oil, in insulating oil
The secondary reflection signal generated with the interface of the second metal sidewall；Signal processing module is according to the conservator position at respective heights
The reflection signal number measured controls display module to indicate the reflection signal number measured；The oil pillow oil level, which is located at, to be received
Between conservator height corresponding to primary event signal and two secondary reflection signals；
Wherein, first metal sidewall and the second metal sidewall are the opposite two sidewalls of conservator level.
Among one embodiment: the signal acquisition module is communicated to connect with microcontroller and with signal processing module.
Among one embodiment: the signal acquisition module and signal processing module wireless communication connect.
Among one embodiment: the signal acquisition module is communicated with signal processing module by radio frequency method.
Among one embodiment: the signal acquisition module and ultrasonic probe are installed together.
Among one embodiment: the microcontroller of the signal processing module uses ATmega128 single-chip microcontroller.
Among one embodiment: the display module is installed on signal processing module.
Among one embodiment: the conservator is diaphragm type conservator.
Among one embodiment: the conservator is capsule-type conservator.
Among one embodiment: being coated with couplant between the ultrasonic probe and the outer wall of conservator, issue ultrasonic probe
Ultrasonic longitudinal wave can be effectively passed in conservator.
The technical program compared with the background art, it has the following advantages:
The present invention provides a kind of methods of supersonic sounding oil pillow oil level, can be in the case where transformer is not stopped transport, fastly
Speed accurately detects installation for transformer inside oil level, and measurement is stablized and repeatability is high；Also solving can only have a power failure
The problem of installation for transformer open box to check is measured oil pillow oil level under state, saves time and economic cost.
Signal acquisition unit is communicatively coupled with signal processing unit using the wireless transmission communication technology, convenient for measurement
As a result remotely check.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the measuring principle schematic diagram of the transformer diaphragm type oil pillow oil level based on supersonic sounding.
Fig. 2 is the measuring principle schematic diagram of the transformer capsule-type oil pillow oil level based on supersonic sounding.
Fig. 3 is the measuring circuit structural schematic diagram of the installation for transformer oil level based on supersonic sounding.
Fig. 4 is the measurement flow chart of the installation for transformer oil level based on supersonic sounding.
Specific embodiment
Fig. 1 to Fig. 4 is please referred to, the measurement method of the installation for transformer oil level based on supersonic sounding is equipped with a ultrasonic probe
1, signal acquisition module 2, the signal processing module 3 with microcontroller that is connect with the signal acquisition module 2 and with the signal
The display module that processing module 3 connects.
In the present embodiment, the signal acquisition module 2 and ultrasonic probe 1 are installed together, are issued convenient for receiving ultrasonic probe 1
Ultrasonic longitudinal wave reflection signal.
In the present embodiment, which communicates to connect with microcontroller and with signal processing module 3, the letter
The microcontroller of number processing module 3 uses ATmega128 single-chip microcontroller.
In addition to this, which can also be without microcontroller, with the signal processing module with microcontroller
Received reflection signal is fed back to signal processing module 3 and is analyzed and processed so as to 2 pieces of signal acquisition mould by 3 electrical connections.
Preferably, the signal acquisition module 2 and the wireless communication of signal processing module 3 connect, and in the present embodiment, which is adopted
Collection module 2 is communicated with signal processing module 3 by radio frequency method.
In the present embodiment, which is installed on signal processing module 3, convenient for checking.
When measurement, which is attached at and (is preferably close to be set to) outer wall of conservator and the short transverse along conservator
It moves up and down, the metal wall thickness 4 and the insulating oil 5 inside conservator that the ultrasonic longitudinal wave issued can pass through conservator are preferably, super at this
Couplant is coated between sonic probe 1 and the outer wall of conservator, the ultrasonic longitudinal wave for enabling ultrasonic probe 1 to issue effectively is passed to conservator
It is interior.
Ultrasonic longitudinal wave generates reflection signal on the different medium interface passed through and is received by signal acquisition module 2, believes
Number acquisition module 2, which receives reflection signal backward signal processing module 3 feedback and handled by signal processing module 3, obtains conservator
Oil level:
According to common knowledge, transmissivity of the ultrasonic wave on the interface between metal and air goes to zero.Then, when super
When the sonic level that sonic probe 1 issues is above oil level, first metal sidewall 41 of the ultrasonic longitudinal wave in conservator and air in conservator
Interface generates total reflection, and signal acquisition module 2 receives only primary event signal (between air and the second metal sidewall 42
Ultrasonic reflection signal does not almost receive).When the sonic level that ultrasonic probe 1 issues is under oil level, ultrasonic longitudinal wave is successively
During the first metal sidewall 41 of conservator and conservator interior insulation oil 5, signal acquisition module 2 acquires ultrasonic longitudinal wave first
The primary event signal that the interface of metal sidewall 41 and insulating oil 5 generates and the friendship in insulating oil 5 and the second metal sidewall 42
The secondary reflection signal that interface generates, i.e. signal acquisition module 2 collect two secondary reflection signals；Signal processing module 3 is according to right
The reflection signal number that the conservator position that should highly locate measures controls display module to indicate the reflection signal number measured；The oil
Pillow oil level, which is located at, can receive between conservator height corresponding to primary event signal and two secondary reflection signals；For example, if this is aobvious
Show that module is indicator light, when receiving reflection signal, 3 control instructions lamp of signal processing module is bright primary, therefore, passes through observation
The light on and off number of indicator light it is found that the test height it is corresponding be below oil level or above oil level, as ultrasonic probe 1 is in oil
Moving up and down for pillow outer wall, quickly and easily finds out the oil level of conservator.First metal sidewall 41 and the second metal sidewall 42 are
The opposite two sidewalls of conservator level.
The measurement method of installation for transformer oil level of the present invention is suitable for diaphragm type conservator and capsule-type conservator.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to
Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.
Claims (10)
1. the measurement method of the installation for transformer oil level based on supersonic sounding, it is characterised in that: adopted equipped with a ultrasonic probe, signal
It collection module, the signal processing module with microcontroller being connect with the signal acquisition module and is connect with the signal processing module
Display module；
When measurement, which is attached at the outer wall of conservator and moves up and down along the short transverse of conservator, the ultrasound issued
Longitudinal wave can pass through the metal wall thickness of conservator and the insulating oil inside conservator, ultrasonic longitudinal wave produce on the different medium interface passed through
Raw reflection signal is simultaneously received by signal acquisition module, and signal acquisition module receives reflection signal backward signal processing module feedback
And it is handled to obtain oil pillow oil level by signal processing module:
When air interface generates reflection to ultrasonic longitudinal wave in the first metal sidewall of conservator and conservator, signal acquisition module is received
To primary event signal, when ultrasonic longitudinal wave sequentially passes through the first metal sidewall and conservator interior insulation oil of conservator, signal acquisition
The primary event signal that is generated in the interface of the first metal sidewall and insulating oil of module acquisition ultrasonic longitudinal wave, in insulating oil and the
The secondary reflection signal that the interface of two metal sidewalls generates；Signal processing module is measured according to the conservator position at respective heights
Reflection signal number control display module indicate the reflection signal number measured；The oil pillow oil level, which is located at, can receive once
It reflects between conservator height corresponding to signal and two secondary reflection signals；
Wherein, first metal sidewall and the second metal sidewall are the opposite two sidewalls of conservator level.
2. the measurement method of the installation for transformer oil level according to claim 1 based on supersonic sounding, it is characterised in that: should
Signal acquisition module is communicated to connect with microcontroller and with signal processing module.
3. the measurement method of the installation for transformer oil level according to claim 2 based on supersonic sounding, it is characterised in that: should
Signal acquisition module and signal processing module wireless communication connect.
4. the measurement method of the installation for transformer oil level according to claim 3 based on supersonic sounding, it is characterised in that: should
Signal acquisition module is communicated with signal processing module by radio frequency method.
5. the measurement method of the installation for transformer oil level according to claim 1 based on supersonic sounding, it is characterised in that: should
Signal acquisition module and ultrasonic probe are installed together.
6. the measurement method of the installation for transformer oil level according to claim 1 or 2 or 3 or 4 based on supersonic sounding, special
Sign is: the microcontroller of the signal processing module uses ATmega128 single-chip microcontroller.
7. the measurement method of the installation for transformer oil level according to claim 1 based on supersonic sounding, it is characterised in that: should
Display module is installed on signal processing module.
8. the measurement method of the installation for transformer oil level according to claim 1 based on supersonic sounding, it is characterised in that: should
Conservator is diaphragm type conservator.
9. the measurement method of the installation for transformer oil level according to claim 1 based on supersonic sounding, it is characterised in that: should
Conservator is capsule-type conservator.
10. the measurement method of the installation for transformer oil level according to claim 1 based on supersonic sounding, it is characterised in that:
Couplant is coated between the ultrasonic probe and the outer wall of conservator, the ultrasonic longitudinal wave for enabling ultrasonic probe to issue effectively is passed to oil
In pillow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469127.6A CN110501055A (en) | 2018-05-16 | 2018-05-16 | The measurement method of installation for transformer oil level based on supersonic sounding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469127.6A CN110501055A (en) | 2018-05-16 | 2018-05-16 | The measurement method of installation for transformer oil level based on supersonic sounding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110501055A true CN110501055A (en) | 2019-11-26 |
Family
ID=68583942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810469127.6A Pending CN110501055A (en) | 2018-05-16 | 2018-05-16 | The measurement method of installation for transformer oil level based on supersonic sounding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110501055A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113343392A (en) * | 2021-07-06 | 2021-09-03 | 浙江天铂云科光电股份有限公司 | Intelligent detection and positioning method for oil conservator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271012A (en) * | 2008-01-30 | 2008-09-24 | 西安华舜测量设备有限责任公司 | Non-contact portable ultrasonic wave liquid level measuring apparatus |
| CN103245397A (en) * | 2013-04-10 | 2013-08-14 | 徐州浩通水射流科技有限公司 | Device for monitoring abrasive amount in high-pressure tank online by utilizing ultrasonic |
| US20150185065A1 (en) * | 2012-08-13 | 2015-07-02 | Adeka Corporation | Liquid container and method for measuring liquid level using same |
| CN105043506A (en) * | 2015-06-02 | 2015-11-11 | 林聪� | Ultrasonic oil conservator oil level detector for power transformer |
| CN105737944A (en) * | 2016-02-29 | 2016-07-06 | 国家电网公司 | Device and method for detecting oil level of oil storage cabinet of corrugated pipe tube transformer |
| CN206056726U (en) * | 2016-09-28 | 2017-03-29 | 济南图科电子有限公司 | A kind of ultrasonic liquid level switch for penetrating tank skin measurement |
| CN107014467A (en) * | 2017-03-30 | 2017-08-04 | 西安科技大学 | A kind of power transformer oil conservater liquid level emasuring device and measuring method |
-
2018
- 2018-05-16 CN CN201810469127.6A patent/CN110501055A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271012A (en) * | 2008-01-30 | 2008-09-24 | 西安华舜测量设备有限责任公司 | Non-contact portable ultrasonic wave liquid level measuring apparatus |
| US20150185065A1 (en) * | 2012-08-13 | 2015-07-02 | Adeka Corporation | Liquid container and method for measuring liquid level using same |
| CN103245397A (en) * | 2013-04-10 | 2013-08-14 | 徐州浩通水射流科技有限公司 | Device for monitoring abrasive amount in high-pressure tank online by utilizing ultrasonic |
| CN105043506A (en) * | 2015-06-02 | 2015-11-11 | 林聪� | Ultrasonic oil conservator oil level detector for power transformer |
| CN105737944A (en) * | 2016-02-29 | 2016-07-06 | 国家电网公司 | Device and method for detecting oil level of oil storage cabinet of corrugated pipe tube transformer |
| CN206056726U (en) * | 2016-09-28 | 2017-03-29 | 济南图科电子有限公司 | A kind of ultrasonic liquid level switch for penetrating tank skin measurement |
| CN107014467A (en) * | 2017-03-30 | 2017-08-04 | 西安科技大学 | A kind of power transformer oil conservater liquid level emasuring device and measuring method |
Non-Patent Citations (1)
| Title |
|---|
| 许勇: "《工业通信网络技术和应用》", 31 January 2013, 西安电子科技大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113343392A (en) * | 2021-07-06 | 2021-09-03 | 浙江天铂云科光电股份有限公司 | Intelligent detection and positioning method for oil conservator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110243935A (en) | A kind of GIS epoxy insulation internal flaw ultrasonic detection method and system | |
| CN101713642B (en) | Electromagnetic ultrasonic probe | |
| CN203799002U (en) | Data acquisition device for verification testing of partial discharge supersonic reflectoscope | |
| CN110231129A (en) | A kind of pressure vessel inspection of hermetic seal device and detection method | |
| CN111595936A (en) | Medium-low frequency electromagnetic eddy current online monitoring and detecting system and detecting method | |
| CN201540280U (en) | Device for online detection of pumping rod of exterior penetration type eddy current sensor | |
| CN110501055A (en) | The measurement method of installation for transformer oil level based on supersonic sounding | |
| CN100390531C (en) | Gas pipeline leakage detecting and positioning method and system based on microwave technology | |
| CN103913136B (en) | Ultrasonic paper thickness measuring device | |
| CN212364181U (en) | On-line monitoring and detecting system for medium and low frequency electromagnetic eddy current | |
| CN208847287U (en) | Condenser type adaptive universal liquid level emasuring device | |
| CN207622890U (en) | 10kV distribution transformer oil temperature oil levels monitor and pressure discharges integrated apparatus | |
| CN203489945U (en) | External attaching type ultrasound liquid level meter | |
| CN106908456B (en) | A kind of metal sheet surface defects detection and the microwave detection probe and method of positioning | |
| CN110376286A (en) | A kind of in-service disc insulator intelligent automation ultrasonic testing system and method | |
| CN114137471A (en) | Single-phase electric energy meter verification assembly line online period checking method based on big data analysis | |
| CN204269596U (en) | For the guided wave pick-up unit that testing pipes inner wall corrosion is thinning | |
| Chen et al. | Application of on-line ultrasonic and UHF partial discharge detection in 1000kV GIS | |
| CN107676636A (en) | A kind of pipeline leakage testing sensor fastening device and fixing means | |
| CN211291816U (en) | Curved surface steel string type underground engineering stress sensor | |
| CN203132762U (en) | Container-pressure rapid nondestructive detecting device used on production line | |
| CN210221902U (en) | Magnetic field focusing transient electromagnetic pipeline defect scanning device | |
| CN110763309A (en) | Method for measuring oil level of transformer oil conservator based on double ultrasonic detection | |
| CN109798953A (en) | A kind of digitlization outer patch ultrasonic liquid level switch measuring system and its measurement method | |
| CN103196615B (en) | Container pressure fast nondestructive test device and test method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191126 |