CN107036962A - Seawater pipeline galvanic corrosion electric current on-site detecting device and measuring method - Google Patents
Seawater pipeline galvanic corrosion electric current on-site detecting device and measuring method Download PDFInfo
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- CN107036962A CN107036962A CN201710382384.1A CN201710382384A CN107036962A CN 107036962 A CN107036962 A CN 107036962A CN 201710382384 A CN201710382384 A CN 201710382384A CN 107036962 A CN107036962 A CN 107036962A
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- galvanic corrosion
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- electric current
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention provides a kind of seawater pipeline galvanic corrosion electric current on-site detecting device, it includes power supply indicator, run indicator, run switch, measurement test pencil negative pole, measurement test pencil positive pole, monitoring screen and signal processing apparatus.The measurement apparatus can be used for the galvanic corrosion current measurement of service phase seawaterline, differentiate seawaterline state, so as to instruct seawaterline to safeguard and maintenance.The installation situation detection of new clothes seawaterline is can also be used for, its installment state is differentiated, so as to promote seawaterline mounting process to improve, from Sources controlling galvanic corrosion；The invention of the device, is significant the galvanic corrosion solving seawaterline component.
Description
Technical field
The invention belongs to material corrosion detection technique field, and in particular to a kind of inspection of seawater pipeline galvanic corrosion electric current scene
Survey device.
Background technology
Galvanic corrosion is one of main corrosion form in sea water piping system between dissimilar metal, can trigger spot corrosion, crevice corrosion
Etc. the local corrosion of other forms, cause sea water piping system local leakage, have a strong impact on equipment uses safety.And modern ships
Sea water piping system is made up of the equipment of difference in functionality, and its is complicated, and part is various, and dissimilar metal contact is inevitable；In order to anti-
Take the method for insulating flange to separate foreign material in only galvanic corrosion, most seawaterlines, prevent galvanic corrosion.Seawater pipe
There is seawater on road for a long time, while being limited by the factors such as technique, material, it will failure of insulation, and then formation galvanic corrosion occur,
There will be galvanic corrosion electric current between two kinds of insulation pipelines.
Some research institutions of the country, grinding for galvanic corrosion is carried out in laboratory by simulating the state of ship piping system at present
Study carefully, measure corresponding corrosion potential, polarization characteristic etc., but to live sea water piping system, only carried out different sea water piping system current potentials
The measurement of difference, the size according to potential difference differentiates that sea water piping system whether there is galvanic corrosion.But be due between different metal from
Right potential difference is different, and the standard that its potential difference differentiates also should be different, it is necessary to which the personnel for possessing corresponding professional knowledge go to differentiate, it is impossible to
Detected by worker at the production line, be not easy to carry out the maintenance and maintenance of seawaterline；Therefore one kind is needed more easily to measure
Device, directly carries out the galvanic corrosion current measurement of seawaterline, thus judges whether sea water piping system galvanic corrosion occurs, be easy to
Safeguarded and repaired when docking or depressed place are examined.
The content of the invention
Based on problems of the prior art, the present invention provides a kind of seawater pipeline galvanic corrosion electric current Site Detection dress
Put, available for the galvanic corrosion current measurement of service phase seawaterline, seawaterline state is differentiated, so as to instruct seawaterline to tie up
Shield and maintenance.The installation situation detection of new clothes seawaterline is can also be used for, its installment state is differentiated, so as to promote seawaterline to pacify
Process modification is filled, from Sources controlling galvanic corrosion；The invention of the device, has the galvanic corrosion solving seawaterline component
It is of great importance.
To overcome above-mentioned technical problem, the present invention provides a kind of seawater pipeline galvanic corrosion electric current on-site detecting device, its
Including power supply indicator, run indicator, run switch, measurement test pencil negative pole, measurement test pencil positive pole, monitoring screen and signal transacting
Device.
Wherein, microampere order weak current signal is converted into voltage signal by the signal processing apparatus by current sensor,
Be then converted into data signal, be then reduced into corresponding current value, so as to realize the measurement of galvanic corrosion electric current, repeat on
Process is stated, measurement position current state is differentiated.
Wherein, the signal processing apparatus is deposited including micro controller unit, collection plate, current sensor, LCD modules, SD
Storage device, RS485 communication interfaces, flash disk memory interface and heat abstractor composition.
Wherein, collection plate, LCD modules, SD storage devices, heat abstractor, RS485 communication interfaces, flash disk memory interface are equal
It is connected with micro controller unit, current sensor is connected with collection plate.
The present invention also provides the side that seawater pipeline galvanic corrosion current detecting is carried out using above-mentioned electric current on-site detecting device
Method, it includes：
The current signal of acquisition is passed to current sensor by the first step, measurement test pencil negative pole, measurement test pencil positive pole；
Second step, the signal that collection plate is transmitted through coming to current sensor is filtered, amplification and analog-to-digital conversion, then by
I2Data are sent to MCU unit caches area by C buses；
3rd step, by MCU units read buffer area data, and to data carry out batch processing, then with user configuring parameter
Data comparison is carried out, end product is by LCD module displays, while carrying out SD storages, flash disk storage.
Beneficial technique effect
Microampere order weak current signal is converted into voltage signal by the present invention by the current sensor in signal processing apparatus,
Then again by filtering, amplification, analog to digital conversion and follow-up data convert, the galvanic corrosion electric current of seawaterline, fortune are measured
Batch processing is carried out with fuzzy recognition technology, the differentiation to etch state residing for measurement position is completed.The device can be carried out newly
The installation situation detection of seawaterline is filled, differentiates whether installment state meets requirement according to measurement result, measurement result should be less than
Given threshold value, so as to promote seawaterline mounting process to improve；Military service seawaterline can be detected, according to measurement result
Differentiate its operation conditions, measurement result should be less than given threshold value, instruct it to safeguard and maintenance；It can apply to material galvanic corrosion
Mechanism, material galvanic corrosion Protective Research.
Brief description of the drawings
Fig. 1 seawater pipeline galvanic corrosion electric current on-site detecting device structural representations；
Fig. 2 signal processing apparatus structural representations.
Embodiment
The present invention provides a kind of seawater pipeline galvanic corrosion electric current on-site detecting device, and it includes power supply indicator, operation
Indicator lamp, run switch, measurement test pencil negative pole, measurement test pencil positive pole, monitoring screen and signal processing apparatus.
Microampere order weak current signal is converted into voltage signal, Ran Houtong by the signal processing apparatus by current sensor
Filtering, amplification and the analog-to-digital conversion to signal are crossed, data signal is converted into, then by software according to range, AD conversion position
The relevant parameters such as number, reference voltage, correction rule are changed, and are reduced into corresponding current value, so as to realize galvanic corrosion electricity
The measurement of stream；Repeat said process, measure a series of galvanic corrosion electric current, take the mode of probability statistics to current number
According to mass processing is carried out, further according to historical data and preset basic data, measurement position current state is differentiated.
The signal processing apparatus includes micro controller unit (MCU), collection plate, current sensor, LCD modules, SD and deposited
Storage device, RS485 communication interfaces, flash disk memory interface and heat abstractor composition；
Collection plate, LCD modules, SD storage devices, heat abstractor, RS485 communication interfaces, flash disk memory interface are and micro-control
Device unit connection processed, current sensor is connected with collection plate.
By MCU micro controller units mainboard by Transistor-Transistor Logic level piece selected control collection plate, it is operated collection plate；Measurement
The current signal of acquisition is passed to current sensor by test pencil negative pole, measurement test pencil positive pole, and collection plate is transmitted through to current sensor
The signal come is filtered, amplification and analog-to-digital conversion, then by I2Data are sent to MCU unit caches area by C buses.It is mono- by MCU
Member reads buffer area data, and carries out batch processing to data, then by LCD module displays, is deposited while carrying out SD storages, flash disk
Storage is (if there is external flash disk).During system operation, MCU unit real-time monitoring system temperature is controlled heat abstractor automatically；
The device is while RS485 interfaces, once there is external equipment to have access request, the device can be automatically according to external instrument request
Type carries out data transmission.
Describe embodiments of the present invention in detail using embodiment and accompanying drawing below, how skill is applied to the present invention whereby
Art means solve technical problem, and reach the implementation process of technique effect and can fully understand and implement according to this.
As shown in figure 1, the seawater pipeline galvanic corrosion electric current on-site detecting device that the present invention is provided, it includes power supply instruction
Lamp 3, run indicator 4, run switch 5, measurement test pencil negative pole 6, measurement test pencil positive pole 7, monitoring screen 2 and signal processing apparatus.
Measurement test pencil positive pole 7 and measurement test pencil negative pole 6 are connected to the two ends of the adpting flange of north side seawaterline 1, open measurement apparatus,
Measure current signal.
As shown in Fig. 2 the signal processing apparatus includes micro controller unit (MCU) 8, collection plate 9, current sensor
10th, LCD modules 11, SD storage devices 12, RS485 communication interfaces 13, flash disk memory interface 14 and heat abstractor 15 are constituted.By
MCU micro controller units mainboard 8 is operated collection plate 9 by Transistor-Transistor Logic level piece selected control collection plate 9；Measure test pencil negative pole
6th, the current signal of acquisition is passed to current sensor 10 by measurement test pencil positive pole 7, and collection plate 9 is transmitted through coming to current sensor 10
Signal be filtered, amplification and analog-to-digital conversion, then by I2Data are sent to MCU unit caches area by C buses.By MCU units
Buffer area data are read, and data carry out batch processing, are then shown by LCD modules 11, are deposited while carrying out SD storage devices 12
Storage, the storage of flash disk storage device.During system operation, MCU unit real-time monitoring system temperature is controlled heat abstractor automatically
15；The device is while RS485 interfaces, can be communicated, data are automatically saved in host computer with distal end host computer.
All above-mentioned this intellectual properties of primarily implementation, the not this new product of implementation of setting limitation other forms
And/or new method.Those skilled in the art will utilize this important information, the above modification, to realize similar execution feelings
Condition.But, all modifications or transformation belong to the right of reservation based on new product of the present invention.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (5)
1. a kind of seawater pipeline galvanic corrosion electric current on-site detecting device, it is characterised in that：Indicated including power supply indicator, operation
Lamp, run switch, measurement test pencil negative pole, measurement test pencil positive pole, monitoring screen and signal processing apparatus.
2. seawater pipeline galvanic corrosion electric current on-site detecting device as claimed in claim 1, it is characterised in that：At the signal
Microampere order weak current signal is converted into voltage signal by reason device by current sensor, is then converted into data signal, then also
Original is into corresponding current value, so as to realize the measurement of galvanic corrosion electric current, repeats said process, differentiates that measurement position is current
State.
3. seawater pipeline galvanic corrosion electric current on-site detecting device as claimed in claim 1 or 2, it is characterised in that：The letter
Number processing unit includes micro controller unit, collection plate, current sensor, LCD modules, SD storage devices, RS485 communications and connect
Mouthful, flash disk memory interface and heat abstractor composition.
4. the seawater pipeline galvanic corrosion electric current on-site detecting device as described in claims 1 to 3, it is characterised in that：Collection plate,
LCD modules, SD storage devices, heat abstractor, RS485 communication interfaces, flash disk memory interface are connected with micro controller unit, electricity
Flow sensor is connected with collection plate.
5. the method for seawater pipeline galvanic corrosion current detecting is carried out using electric current on-site detecting device described in Claims 1-4,
It is characterised in that it includes：
The current signal of acquisition is passed to current sensor by the first step, measurement test pencil negative pole, measurement test pencil positive pole；
Second step, the signal that collection plate is transmitted through coming to current sensor is filtered, amplification and analog-to-digital conversion, then by I2C is total
Data are sent to MCU unit caches area by line；
3rd step, buffer area data are read by MCU units, and data are carried out with batch processing, then are carried out with user configuring parameter
Data compare, and end product is by LCD module displays, while carrying out SD storages, flash disk storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710382384.1A CN107036962A (en) | 2017-05-26 | 2017-05-26 | Seawater pipeline galvanic corrosion electric current on-site detecting device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710382384.1A CN107036962A (en) | 2017-05-26 | 2017-05-26 | Seawater pipeline galvanic corrosion electric current on-site detecting device and measuring method |
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| Publication Number | Publication Date |
|---|---|
| CN107036962A true CN107036962A (en) | 2017-08-11 |
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| CN201710382384.1A Pending CN107036962A (en) | 2017-05-26 | 2017-05-26 | Seawater pipeline galvanic corrosion electric current on-site detecting device and measuring method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201892655U (en) * | 2010-11-30 | 2011-07-06 | 海安县智能仪器厂 | Corrosion speed measuring device in oil gas pipeline |
| CN102980933A (en) * | 2012-11-22 | 2013-03-20 | 中国石油大学(华东) | Multi-channel galvanic corrosion test system and method based on micro electrode array |
| CN202947990U (en) * | 2012-11-22 | 2013-05-22 | 中国石油大学(华东) | Multi-channel galvanic corrosion test system based on microelectrode array |
| CN204514780U (en) * | 2015-02-25 | 2015-07-29 | 天津大学 | A kind of the cannot-harm-detection device detecting metal welding joints bimetallic corrosion susceptibility |
| CN205593902U (en) * | 2016-04-29 | 2016-09-21 | 天津大学 | Metal welded joint position galvanic corrosion's survey device |
| CN106124828A (en) * | 2016-06-28 | 2016-11-16 | 中国船舶重工集团公司第七二五研究所 | A kind of novel seawaterline stray current detecting device |
-
2017
- 2017-05-26 CN CN201710382384.1A patent/CN107036962A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201892655U (en) * | 2010-11-30 | 2011-07-06 | 海安县智能仪器厂 | Corrosion speed measuring device in oil gas pipeline |
| CN102980933A (en) * | 2012-11-22 | 2013-03-20 | 中国石油大学(华东) | Multi-channel galvanic corrosion test system and method based on micro electrode array |
| CN202947990U (en) * | 2012-11-22 | 2013-05-22 | 中国石油大学(华东) | Multi-channel galvanic corrosion test system based on microelectrode array |
| CN204514780U (en) * | 2015-02-25 | 2015-07-29 | 天津大学 | A kind of the cannot-harm-detection device detecting metal welding joints bimetallic corrosion susceptibility |
| CN205593902U (en) * | 2016-04-29 | 2016-09-21 | 天津大学 | Metal welded joint position galvanic corrosion's survey device |
| CN106124828A (en) * | 2016-06-28 | 2016-11-16 | 中国船舶重工集团公司第七二五研究所 | A kind of novel seawaterline stray current detecting device |
Non-Patent Citations (3)
| Title |
|---|
| 徐进强，左翠红: "《<单片机与嵌入式系统应用>合订本 2001 1-6》", 28 February 2010, 《单片机与嵌入式系统应用》杂志社 * |
| 许立群，周玉坤，修丽梅: "《DSP技术与应用》", 31 March 2015, 北京：北京航空航天大学出版社 * |
| 赵怀章，周森棠，汤兵勇: "《实用市场经济数学模型》", 31 May 1997, 上海：同济大学出版社 * |
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Application publication date: 20170811 |
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