CN106908376A - A kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator - Google Patents
A kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator Download PDFInfo
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- CN106908376A CN106908376A CN201710128137.9A CN201710128137A CN106908376A CN 106908376 A CN106908376 A CN 106908376A CN 201710128137 A CN201710128137 A CN 201710128137A CN 106908376 A CN106908376 A CN 106908376A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
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Abstract
This application provides a kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator, real-time detection can be carried out to the humiture of the leakage current of DC Insulator and local environment, and calculate the corrosion depth and corrosion class of DC Insulator metal-ware, therefore, a kind of DC Insulator metal-ware that the application is provided is not limited by regional landform, real-time detection can be carried out to the metal-ware of the extra-high voltage direct-current insulator in all regions, and staff can judge the electrolytic etching degree of the metal-ware of extra-high voltage direct-current insulator by corrosion class, make testing result accurate.
Description
Technical field
The application is related to the field that DC Insulator is detected, more particularly to a kind of metal-ware of DC Insulator to be electrolysed corruption
Erosion Monitoring Data system.
Background technology
In field of power transmission, insulator chain is, for connecting transmission line of electricity and steel tower, and to play the element of insulating effect.
In HVDC transmission system, DC Insulator produces leakage current under DC voltage effect, and moist or filthy
Environment in, dunghill make moist generation soiling solution flow through DC Insulator metal-ware surface, in the effect of leakage current
Under, make the metal-ware of DC Insulator that electrolytic etching to occur, easily there is DC Insulator and fall string accident, to D.C. high voltage transmission
The safe operation of circuit causes great threat.
In order to prevent above mentioned problem, the metal-ware to DC Insulator by the way of manual inspection is supervised
Control, but for being arranged on the shaft tower in mountain area, because trees etc. are blocked to DC Insulator, staff can not complete extra-high
The detection of pressure transmission line DC Insulator metal-ware, and manual detection occurs larger error, causes testing result
It is inaccurate.
The content of the invention
It is existing straight to solve this application provides a kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator
Stream insulated metal annex detection method can not complete the inspection of the UHV transmission line DC Insulator metal-ware in all regions
Survey, and manual detection occurs larger error, causes the problem that testing result is inaccurate.
This application provides a kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator, including：
Data acquisition module, for obtaining the leakage current at each moment and the leakage current pair in preset time period
The temperature value and humidity value answered；
Data preprocessing module, according to the leakage current at each moment in the preset time period, determines current time
Calibration leakage current；The corresponding temperature value of leakage current and humidity value according to each moment in preset time period, it is determined that described
The calibration temperature value and calibration humidity value at current time；
Corrosion quantity of electric charge computing module, for calibration leakage current and the corrosion of last moment according to the current time
The quantity of electric charge, is calculated the corrosion quantity of electric charge of the metal-ware of current slot；
Metal-ware Corrosion monitoring module, for the corrosion quantity of electric charge and direct current of the metal-ware according to the current time
The hang of insulator, determines the corrosion rate and corrosion depth of the metal-ware at the current time；According to described current
The corrosion rate of the calibration temperature value, calibration humidity value and metal-ware at moment, determines the corrosion class of the metal-ware；
Database, for store the current time calibration electric current, the calibration temperature value at the current time, it is described work as
The calibration humidity value at preceding moment, the corrosion quantity of electric charge of the metal-ware at the current time, the metal-ware at the current time
Corrosion class and the metal-ware corrosion depth.
From above technical scheme, number is monitored in the metal-ware electrolytic etching this application provides a kind of DC Insulator
According to system, real-time detection can be carried out to the humiture of the leakage current of DC Insulator and local environment, and calculate straight
The corrosion depth and corrosion class of insulator metal accessory are flowed, therefore, a kind of DC Insulator metal-ware that the application is provided
Do not limited by regional landform, real-time detection can be carried out to the metal-ware of the extra-high voltage direct-current insulator in all regions, and
Staff can judge the electrolytic etching degree of the metal-ware of extra-high voltage direct-current insulator by corrosion class, make testing result
Accurately.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the accompanying drawing to be used needed for embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the application；
Fig. 2 is the structural representation of the data preprocessing module of the application
Fig. 3 is the structural representation of the metal-ware Corrosion monitoring module of the application.
Specific embodiment
It is the structural representation of the application referring to Fig. 1.This application provides a kind of metal-ware electrolysis of DC Insulator
Corrosion-monitoring data system, including：A kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator, its feature exists
In the system includes：
Data acquisition module 11, for obtaining the leakage current at each moment and the leakage current in preset time period
Corresponding temperature value and humidity value；
Preset time period can be calculated in units of minute, hour or year, for example, preset time period is 1 minute, then in advance
If each moment can be each second, or often several seconds in the time period.
The corresponding temperature value of leakage current and humidity value are the temperature value and humidity of the environment of DC Insulator location
Value.
Data preprocessing module 12, according to the leakage current at each moment in the preset time period, determines current time
Calibration leakage current；The corresponding temperature value of leakage current and humidity value according to each moment in preset time period, determine institute
State the calibration temperature value and calibration humidity value at current time；
Corrosion quantity of electric charge computing module 13, for calibration leakage current and the corruption of last moment according to the current time
The erosion quantity of electric charge, according to equation below, is calculated the corrosion quantity of electric charge of the metal-ware of current time；
Qk=Qk-1+ik·(tk-tk-1)
Wherein, QkRepresent the corrosion quantity of electric charge of the metal-ware at current time, Qk-1Represent the metal-ware of last moment
The corrosion quantity of electric charge, ikRepresent the correction leakage current at current time, tkRepresent current time, tk-1Represent last moment；
Current time can be weighed according to minute, hour and year, be calculated current minute, current hour and when the year before last
The corrosion quantity of electric charge.
Metal-ware Corrosion monitoring module 15, metal-ware Corrosion monitoring module, for the gold according to the current time
The corrosion quantity of electric charge of category annex and the hang of DC Insulator, determine the corrosion rate of the metal-ware at the current time
And corrosion depth；The corrosion rate of calibration temperature value, calibration humidity value and metal-ware according to the current time, determines institute
State the corrosion class of metal-ware.
The Suspension type of DC Insulator is divided into the formula of horizontally suspending, dangle suspension type and V-type suspension type.
Database 16, for storing the calibration electric current at the current time, the calibration temperature value at the current time, described
The calibration humidity value at current time, the corrosion quantity of electric charge of the metal-ware at the current time, the metal at the current time are attached
The corrosion depth of the corrosion class of part and the metal-ware.
From above technical scheme, number is monitored in the metal-ware electrolytic etching this application provides a kind of DC Insulator
According to system, real-time detection can be carried out to the humiture of the leakage current of DC Insulator and local environment, and calculate straight
The corrosion depth and corrosion class of insulator metal accessory are flowed, therefore, a kind of DC Insulator metal-ware that the application is provided
Do not limited by regional landform, real-time detection can be carried out to the metal-ware of the extra-high voltage direct-current insulator in all regions, and
Staff can judge the electrolytic etching degree of the metal-ware of extra-high voltage direct-current insulator by corrosion class, make testing result
Accurately.
Further, as shown in Fig. 2 the data preprocessing module 12 includes,
Calibration leakage current computing unit 21, for judge each moment in the preset time period leakage current whether
More than predetermined current；If leakage current sometime is more than predetermined current, and the leakage current sometime is true
It is set to the leakage current of the last moment sometime；
Calibration temperature value computing unit 22, whether the temperature value for judging each moment in the preset time period is more than
Preset temperature value；If temperature value sometime is more than preset temperature value, the temperature value sometime is defined as
The temperature value of the last moment sometime；
Calibration humidity value computing unit 23, whether the humidity value for judging each moment in the preset time period is more than
Default humidity value；If humidity value sometime is more than default humidity value, the humidity value sometime is defined as
The humidity value of the last moment sometime.
Judge whether leakage current acquired in identification, temperature value and humidity value are correct, if the leakage current, the temperature that obtain
Angle value and humidity value mistake, then correct to it, to improve the accuracy of detection.
Further, the calibration leakage current computing unit 21, was additionally operable to according to each moment in the preset time period
Leakage current, calculate average current value；The calibration leakage current at the current time is defined as the average current value；
The calibration temperature value computing unit 22, is additionally operable to the temperature value according to each moment in the preset time period,
Calculate average temperature value；The calibration temperature value at the current time is defined as average temperature value；
The calibration temperature value computing unit 23, is additionally operable to the humidity value according to each moment in the preset time period,
Calculate medial humidity value；The calibration humidity value at the current time is defined as the medial humidity value.
Current time is the end time of preset time period, to the leakage current in preset time period, temperature value and humidity
Value averaged as current time calibration leakage current, calibration temperature value and calibration humidity value, make testing result more
Accurately.
Current time is the end time of preset time period, to the leakage current in preset time period, temperature value and humidity
Value averaged as current time calibration leakage current, calibration temperature value and calibration humidity value, make testing result more
Accurately.
Further, as shown in figure 3, the metal-ware Corrosion monitoring module 15 includes,
Metal-ware corrosion rate and depth determining unit 31, for the electrochemical equivalent according to the metal-ware and described
The corrosion quantity of electric charge at current time, calculates the corrosion quality at the current time；Corrosion quality according to the current time and
The Suspension type of DC Insulator, obtains the corrosion rate at current time and the corrosion depth of the DC Insulator；
Optionally, according to following formula, the corrosion quality at current time is calculated,
mk=w × Qk
Wherein, mkThe corrosion quality at current time is represented, w represents the electrochemical equivalent of metal-ware, QkRepresent current time
The corrosion quantity of electric charge.
The corrosion quality of corrosion quality and last moment according to current time, can calculate the corrosion speed at current time
Degree；Metal-ware can use zinc ring or zinc set, according to corrosion quality and the density of metal-ware, obtain the volume of metal-ware,
So as to the Suspension type (i.e. the suspension angles of DC Insulator) according to DC Insulator, the corrosion depth of metal-ware can be obtained
Degree.
Metal-ware corrosion class determining unit 32, for the temperature changing speed according to the current time and it is described work as
The calibration humidity value at preceding moment, obtains the maximum corrosion rate at the current time；According to the maximum corrosion rate, institute is determined
State the corrosion class of the metal-ware of preset period of time.
Calibration temperature value and the calibration temperature value of last moment according to current time, the temperature that can obtain current time become
Change speed, by judging the temperature changing speed at current time and the calibration humidity value at current time, if the temperature at current time
Degree pace of change is more than pre-set velocity, and the calibration humidity value at current time is more than default humidity value, then by current time
Corrosion rate is defined as maximum corrosion rate.
The corrosion class of metal-ware can be divided into different brackets according to extent of corrosion, and each different brackets correspondence is different
Corrosion rate, the value for judging maximum corrosion rate is fallen into the preset range of certain corrosion class, determines the gold at current time
Belong to the corrosion class of annex.
Further, the system also includes DC Insulator configuration module 14, for according to the default of the preset period of time
Leakage current, preset temperature value, the moment quantity preset in humidity value and the preset period of time, configure the DC Insulator
Standard suspension angle, the connection polarity of DC Insulator and the standard thickness of metal-ware.
Default leakage current refers to the maximum leakage electric current that can be produced in DC Insulator metal-ware location, is preset
Temperature value and default humidity value refer to the maximal humidity value and maximum temperature values of DC Insulator metal-ware location.
Preset period of time can be configured by user, the extreme value according to DC Insulator metal-ware according to the period,
Moment quantity in the extreme value and the preset period of time of the environment of DC Insulator metal-ware location is configured, and is obtained
The standard for being adapted to the standard suspension angle of DC Insulator, the connection polarity of DC Insulator and metal-ware of the environment is thick
Degree, for staff provides reference data.
Further, the system also includes,
User's access modules 17, according to the authority of the access request, lookup matches with the authority of the access request
Data message；
The data message that output matches with the authority of the access request.
The access request of user can be divided into different grades, such as primary user, secondary user and maintenance management personnel,
The different access rights of each different access level correspondence, such as secondary user can only carry out corroding the inquiry of the quantity of electric charge, one
Level user can also derive or import data, and maintenance management personnel can also be deleted the data storage of database, be changed.
It is required that those skilled in the art can be understood that the technology in the embodiment of the present invention can add by software
The mode of general hardware platform realize.Based on such understanding, the technical scheme in the embodiment of the present invention substantially or
Say that the part contributed to prior art can be embodied in the form of software product, the computer software product can be deposited
Storage in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are used to so that individual platform computer equipment (can be with
It is personal computer, server, or network equipment etc.) perform some part institutes of each embodiment of the invention or embodiment
The method stated.
In this specification between each embodiment identical similar part mutually referring to.Especially for ... implement
For example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring in embodiment of the method
Explanation.
Invention described above implementation method is not intended to limit the scope of the present invention..
Claims (6)
1. the metal-ware electrolytic etching Monitoring Data system of a kind of DC Insulator, it is characterised in that the system includes：
Data acquisition module, it is corresponding for obtaining the leakage current at each moment and the leakage current in preset time period
Temperature value and humidity value；
Data preprocessing module, according to the leakage current at each moment in the preset time period, determines the calibration at current time
Leakage current；The corresponding temperature value of leakage current and humidity value according to each moment in preset time period, determine described current
The calibration temperature value and calibration humidity value at moment；
Corrosion quantity of electric charge computing module, for calibration leakage current and the corrosion electric charge of last moment according to the current time
Amount, is calculated the corrosion quantity of electric charge of the metal-ware of current slot；
Metal-ware Corrosion monitoring module, for the corrosion quantity of electric charge and D.C. isolation of the metal-ware according to the current time
The Suspension type of son, determines the corrosion rate and corrosion depth of the metal-ware at the current time；According to the current time
Calibration temperature value, calibration humidity value and metal-ware corrosion rate, determine the corrosion class of the metal-ware；
Database, for store the current time calibration electric current, the calibration temperature value at the current time, it is described current when
The calibration humidity value at quarter, the corrosion quantity of electric charge of the metal-ware at the current time, the corruption of the metal-ware at the current time
The corrosion depth of erosion grade and the metal-ware.
2. system according to claim 1, it is characterised in that the data preprocessing module includes,
Calibration leakage current computing unit, for judging the leakage current at each moment in the preset time period whether more than pre-
If electric current；If leakage current sometime is more than predetermined current, the leakage current sometime is defined as institute
State the leakage current of last moment sometime；
Calibration temperature value computing unit, for judging the temperature value at each moment in the preset time period whether more than default temperature
Angle value；If temperature value sometime is more than preset temperature value, by the temperature value sometime be defined as it is described certain
The temperature value of the last moment at individual moment；
Whether calibration humidity value computing unit, the humidity value for judging each moment in the preset time period is wet more than default
Angle value；If humidity value sometime is more than default humidity value, by the humidity value sometime be defined as it is described certain
The humidity value of the last moment at individual moment.
3. system according to claim 2, it is characterised in that the calibration leakage current computing unit, is additionally operable to basis
The leakage current at each moment in the preset time period, calculates average current value；The calibration at the current time is leaked into electricity
Stream is defined as the average current value；
The calibration temperature value computing unit, is additionally operable to the temperature value according to each moment in the preset time period, calculates flat
Equal temperature value；The calibration temperature value at the current time is defined as average temperature value；
The calibration temperature value computing unit, is additionally operable to the humidity value according to each moment in the preset time period, calculates flat
Equal humidity value；The calibration humidity value at the current time is defined as the medial humidity value.
4. system according to claim 1, it is characterised in that the metal-ware Corrosion monitoring module also includes, metal
Annex corrosion rate and depth determining unit, for the corrosion at the electrochemical equivalent according to the metal-ware and the current time
The quantity of electric charge, calculates the corrosion quality at the current time；Corrosion quality and DC Insulator according to the current time it is outstanding
Type is hung, the corrosion rate at current time and the corrosion depth of the DC Insulator is obtained；
Metal-ware corrosion class determining unit, for the temperature changing speed according to the current time and the current time
Calibration humidity value, obtain the maximum corrosion rate at the current time；According to the maximum corrosion rate, determine described default
The corrosion class of the metal-ware of period.
5. system according to claim 1, it is characterised in that the system also includes DC Insulator configuration module, uses
Moment in the default leakage current according to the preset period of time, preset temperature value, default humidity value and the preset period of time
Quantity, the standard for configuring the standard suspension angle, the connection polarity of DC Insulator and metal-ware of the DC Insulator is thick
Degree.
6. system according to claim 1, it is characterised in that the system also includes,
User's access modules, according to the data that the authority of the access request, lookup match with the authority of the access request
Information；
The data message that output matches with the authority of the access request.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128137.9A CN106908376A (en) | 2017-03-06 | 2017-03-06 | A kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710128137.9A CN106908376A (en) | 2017-03-06 | 2017-03-06 | A kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator |
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| CN201710128137.9A Pending CN106908376A (en) | 2017-03-06 | 2017-03-06 | A kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator |
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| CN110118719A (en) * | 2018-02-07 | 2019-08-13 | 中国石油天然气股份有限公司 | A kind of method and apparatus carrying out material corrosion evaluation with uniform corrosion rate |
| CN110411938A (en) * | 2019-07-03 | 2019-11-05 | 北京科技大学 | A kind of corrosion sensor |
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