CN106124828A - A kind of novel seawaterline stray current detecting device - Google Patents
A kind of novel seawaterline stray current detecting device Download PDFInfo
- Publication number
- CN106124828A CN106124828A CN201610486179.5A CN201610486179A CN106124828A CN 106124828 A CN106124828 A CN 106124828A CN 201610486179 A CN201610486179 A CN 201610486179A CN 106124828 A CN106124828 A CN 106124828A
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- seawaterline
- stray
- current
- novel
- detecting device
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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
- G01R19/0046—Arrangements for measuring currents or voltages or for indicating presence or sign thereof characterised by a specific application or detail not covered by any other subgroup of G01R19/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The present invention provides a kind of novel seawaterline stray current detecting device, including stray electrical current induction module, measurement data acquisition instrument and upper computer software.Stray electrical current induction module is designed as a water flowing pipeline section being connected with former seawaterline, flange arrangement is mixed at water flowing pipeline section two ends, often holding the embedded conductive layer in described flange arrangement face, flange arrangement is provided with reference electrode, conductive layer and reference electrode and is connected to the aviation plug outside water flowing pipeline section；Central processing unit and adnexa, current measuring unit, potential measurement unit and electricity accumulator it is integrated with in measurement data acquisition instrument.The present invention not only achieves the detection of seawaterline stray electrical current direct-on-line, and can accumulate the accumulation ampere-hour electricity in monitoring a period of time, has the most both been beneficial to find stray electrical current source, has been beneficial to again assessment stray current corrosion amount.The present invention is also provided with potential measurement in test device, further stray electrical current in test water, assistant analysis stray current corrosion feature.
Description
Technical field
The present invention relates to stray circuit detection technique field, particularly relate to a kind of novel seawaterline stray electrical current detection dress
Put.
Background technology
Stray electrical current refers to the electric current of flowing beyond the loop of design or regulation, when stray electrical current from metal to electrolyte
In interface, stray current corrosion will occur during transmission.The essence of stray current corrosion is that impressed current forces electrolytic process, because of
The features such as it is high that this has corrosion strength, and hazardness is big, and randomness is strong.Stray current corrosion is at subway, light rail, underground oil and gas pipe network
Serious Deng harm in urban infrastructure, cause the most attention of domestic and international experts and scholars and government decision person.Such as Hong Kong
Ferrum once caused steel gas pipe underground corrosion failure generation gas leakage accident because of metro stray current；The ground such as Shanghai, Beijing, Shenzhen
Subway generally there is stray electrical current to underground oil, gas transmission, the strong corrosion problem of aqueduct；Continuous along with shipbuilding industry
Development, various novel electronic electric equipments extensive application, thing followed pipeline stray current corrosion problem is inevitable day by day dashes forward
Go out.
The detection of stray electrical current is stray current corrosion prevention and controls indispensable means, at present due to commercial market
The reason that demand is huge and technology maturity is high, stray electrical current detection is concentrated mainly on electric railway, city underground field.Miscellaneous
Dissipating current detecting foundation potential shift, China's standard thinks that current potential raises 20mV and confirms to there is stray electrical current.Based on potentiometric detection
Matured product with Britain Radiodetection, Germany Siemens, Switzerland Sechron etc. are representative, Swain company of the U.S.
Also have developed major diameter Hall element ring for measuring the stray electrical current of buried pipeline.It is current that stray electrical current detects up-to-date patent
Can retrieve utility model patent one Detector for Stray Currents (CN201220012470.6), utility model patent one is spuious
Electric current electric drainager (CN201220012468.9) is based on intelligent stray current drainage system (CN201220067876.4)
Pipeline method of drainage in soil establishes stray current drainage system and core component electric drainager.
The most conventional patent and commercially produced product are not particularly suited for boats and ships seawaterline.Because the sea water such as copper alloy
Pipeline self-corrosion current potential instability seawaterline maritime interior waters flow velocity high pressure in addition causes greatly sentencing so that body potential shift is qualitative
Whether fixed tube road occurs stray electrical current to lack credibility, and the important pipeline of this outer portion takes anode loss protection measure, enters one
Step complicates the current potential feasibility as pipeline stray electrical current criterion.The most domestic stray electrical current for boats and ships seawaterline
The detection of corrosion is still in space state, does not retrieve related detecting method and patent.
Summary of the invention
The technical assignment of the present invention is for the deficiencies in the prior art, it is provided that a kind of novel seawaterline stray electrical current detects
Device, the directly size of current on detection seawaterline and direction, measure seawaterline accumulation by electricity and pipe simultaneously
Sea water electric potential gradient (potential difference, electric potential difference or reference potential), complete detection stray electrical current size, for analyzing stray electrical current source
Head and preventing and treating stray electrical current provide and quantify to support.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of novel seawaterline stray current detecting device, including the stray electrical current induction module being sequentially connected, measurement data
Acquisition Instrument and upper computer software；
Described stray electrical current induction module is designed as a water flowing pipeline section being connected with former seawaterline, and method is mixed at water flowing pipeline section two ends
Blue structure, in order to replace the flange valve between former seawaterline, often holds the embedded conductive layer in described flange arrangement face, the method at two ends
Blue structure is provided with reference electrode, conductive layer and reference electrode lead-in wire and draws, and is connected to outside water flowing pipeline section through holding wire
Aviation plug；
Described measurement data acquisition instrument is located at outside water flowing pipeline section, is integrated with central processing unit and attached in measurement data acquisition instrument
Part, current measuring unit, potential measurement unit and electricity accumulator, current measuring unit, potential measurement unit and electricity accumulation
Device is connected with central processing unit respectively, wherein:
Current measuring unit accesses the current signal of stray electrical current induction module in a series arrangement, and current detecting unit is connected to electricity
Flow sensor, current sensor, with the embedded conductive layer in flange arrangement face that is arranged in for measuring end, is used for measuring tested former sea
The stray electrical current size of water lines, with positive and negative form record current direction and show；Current measuring unit is connected to electricity
Amount integrating instrument, records tested former seawaterline current value during by end per second and carries out ampere-hour electric quantity accumulation and show；Voltage
Detector unit is connected to potentiometric sensor, and potentiometric sensor, using reference electrode as reference end, is arranged in flange knot with embedded
Conductive layer on structure face, as measuring end, and shows the potential difference of reference electrode for measuring tested former seawaterline；
Measurement data acquisition instrument is provided with communication interface and aviation socket, and communication interface communicates with host computer, aviation socket with
The quick grafting of above-mentioned aviation plug.
Further, the flange valve length after flange arrangement is mixed at described water flowing pipeline section two ends and between former seawaterline
Unanimously, internal diameter unanimously, namely uses the flange valve interface size meeting GB.
Further, the sound end of described reference electrode and former seawaterline inwall are in same level line.
Further, described water flowing pipeline section outer surface increase has anticollision nylon structure.
Further, described measurement data acquisition instrument communication interface is communicated with host computer by RS485 bus.
Further, described water flowing pipeline section material is politef or nylon.
Further, described lead-in wire is copper cash, silver wire or Kufil gold thread.Further, described diameter wire is 1-5
mm。
Further, described reference electrode is silver/silver chloride reference electrode.
Further, described conductive layer is copper alloy.
Further, described aviation plug is waterproof aviation plug.
The one novel seawaterline stray current detecting device of the present invention, compared with prior art produced useful effect
Fruit is:
The seawaterline stray current detecting device that the present invention relates to, not only achieves the inspection of seawaterline stray electrical current direct-on-line
Survey, and the accumulation ampere-hour electricity in monitoring a period of time can be accumulated, be the most both beneficial to find stray electrical current source,
It is beneficial to again assessment stray current corrosion amount.Current direction detection is for finding stray electrical current source and eliminating stray electrical current hidden danger and have
Significance.The present invention is also provided with potential measurement in test device, further stray electrical current in test water, and assistant analysis is miscellaneous
Dissipate electrolytic corrosion feature.Additionally, this detection device stray electrical current induction module is resorted to the valve interface size of GB, install
More convenient；The introducing of host computer can be in time by Dynamic data display and carry out follow-up data process, and system integration is higher.
Accompanying drawing explanation
Accompanying drawing 1 is the general frame structure chart of the present invention；
Accompanying drawing 2 is the overall structure schematic diagram of the present invention；
Accompanying drawing 3 is the structure for amplifying schematic diagram of part A in Fig. 2；
Accompanying drawing 4 is the Facad structure schematic diagram of the measurement data acquisition instrument of the present invention；
Accompanying drawing 5 is the structure schematic diagram of the measurement data acquisition instrument of the present invention.
In figure: 1, former seawaterline, 2, copper alloy, 3, reference electrode, 4, aviation plug, 5, water flowing pipeline section, 6, flange knot
Structure, 7, electrolyte, 8, anticollision nylon structure, 9, stray electrical current induction module, 10, electric current display window, 11, current potential display window
Mouthful, 12, on and off switch, 13, power supply indicator, 14, malfunction indicator lamp, 15, aviation socket, 16, RS485 communication interface, 17, electricity
Supply socket.
Detailed description of the invention
1-5 below in conjunction with the accompanying drawings, makees in detailed below the one novel seawaterline stray current detecting device of the present invention
Explanation.
As shown in accompanying drawing 1,2, the one novel seawaterline stray current detecting device of the present invention, mainly include stray electrical
Stream induction module 9, measurement data acquisition instrument and three parts of upper computer software；
Stray electrical current induction module 9: match with seawaterline on ship for convenience, according to valve national standard, designs spuious
Electric current induction module 9 is a water flowing pipeline section 5 being connected with former seawaterline 1, and former seawaterline 1 is connected with water flowing pipeline section 5, structure
Become electrolyte 7 runner.Flange arrangement 6 is mixed at water flowing pipeline section 5 two ends, and its length is corresponding with valve GB with diameter, so exists
During actual measurement, it is not necessary to cut former seawaterline 1, it is only necessary to by the stray electrical current induction module 9 that replacing valve is the present invention
, involve engineering little.
Water flowing pipeline section 5 material is politef or nylon, the embedded copper alloy 2 of the flange arrangement at two ends 6, and two copper close
Gold 2 flange faces couple at electrolyte 7 mutually, and two copper alloy 2 flange faces are connected to the aviation outside water flowing pipeline section 5 by copper cash
At plug 4, copper wire diameter is 1-5 mm.The flange arrangement 6 at two ends is provided with high precision silver/silver chloride reference electrode 3, reference electricity
The sound end of pole 3 and former seawaterline 1 inwall are in same level line, to reduce the impact on current.Reference electrode 3 passes through copper
Line is drawn, and is connected at the aviation plug 4 outside water flowing pipeline section 5 through holding wire.
Measurement data acquisition instrument: as shown in accompanying drawing 2,3, it is located at outside water flowing pipeline section 5, real stray current detecting device
Main body, it is achieved to reference potential, stray electrical current flow to and current value, in the unit interval stray electrical current aggregate-value obtain in real time measure,
Display is closed and is reported to the police.Measurement data acquisition instrument passes through outside 220 V, 50 Hz Alternating Current Power Supplies, passes through with stray electrical current induction module 9
Data wire connects.Be integrated with in measurement data acquisition instrument central processing unit and adnexa, current measuring unit, potential measurement unit and
Electricity accumulator, current measuring unit, potential measurement unit be connected with central processing unit respectively with electricity accumulator, wherein:
Current measuring unit accesses the current signal of stray electrical current induction module 9 in a series arrangement, and current detecting unit is connected to
Current sensor, current sensor, with the embedded copper alloy 2 being arranged in flange arrangement 6 for measuring end, is used for measuring tested
The stray electrical current size of former seawaterline 1, with positive and negative form record current direction and show.Electricity is directly for that
Stray current corrosion amount, but when immediately testing, often embody the instantaneous value of electric current, it is impossible to reaction charge value, the present invention
In, current measuring unit is connected to electric quantity accumulation device, records tested former seawaterline 1 current value and carry out ampere-hour during by end per second
Electric quantity accumulation also shows, exception potential in can reflecting a period of time increases the accumulative destruction of stray electrical current.Voltage is examined
Surveying unit and be connected to potentiometric sensor, potentiometric sensor, using reference electrode 3 as reference end, is arranged in flange arrangement with embedded
Copper alloy 2 on 6 is as measuring end, for measuring the tested former seawaterline 1 potential difference (the i.e. reference electricity to reference electrode 3
Position) and show；
Measurement data acquisition instrument is provided with electric current display window 10, current potential display window 11, power supply indicator 13, malfunction indicator lamp
14, on and off switch 12 and supply socket 17, is additionally provided with RS485 communication interface 16 and aviation socket 15, and RS485 communication interface 16 leads to
Crossing RS485 bus to communicate with host computer, aviation socket 15 is by data wire and the above-mentioned quick grafting of aviation plug 4.
Measurement data acquisition instrument the key technical indexes:
Power supply: alternating current 220V ± 10%
Current measuring range :-500 mA-0-500 mA, Measurement Resolution 0.1 mA
Potential measurement scope :-3 V-3 V, display resolution 1 mV
The forward and reverse counting respectively of ampere hour meter (a.h.m.): 0.00-99999()
Alarming value can set, and when stray electrical current, reference potential exceed setting value, measuring instrument panel trouble light is bright
Communication: RS485 communicates
Measuring instrument overall dimensions: 240mm × 130mm × 250mm(width × height × deep)
Upper computer software: after host computer is connected with measurement data acquisition instrument, utilizes special-purpose software based on RS485, it is possible to achieve
The data real time record at multiple positions, store the data such as tested former seawaterline 1 stray electrical current, reference potential, can review each
Item historical data forming curves, can analyse in depth the producing cause of stray electrical current accordingly.
It should be noted that copper alloy 2 involved in the present invention can be replaced the conductive layer such as silver alloy, Kufil,
Copper cash can be replaced the conductive lead wire such as silver wire, Kufil gold thread.Involved aviation plug 4 is preferably waterproof aviation plug 4.Institute
The water flowing pipeline section 5 related to preferably outer surface increase has anticollision nylon structure 8 so that overall degree of protection reaches IP68.
Concrete practice example
Certain ship air-conditioning seawaterline supervisor's F89 diameter valve is removed, is replaced by the stray electrical current sensing of corresponding size and length
Module 9, pump supporting on this bye-pass and air-conditioning terminal valve are all replaced by the stray electrical current induction module of dimension
9, each stray electrical current induction module 9 connects a measurement data acquisition instrument by data wire, and measurement data acquisition instrument uses
220V AC-powered on ship, opens measurement data acquisition instrument on and off switch 12 equipment and carries out self-inspection, and each data collecting instrument leads to
Crossing RS485 Bus Wire to be finally aggregated on a upper computer software, opening the upper computer software on computer, to look into each position real-time
Current level data.
The foregoing is only the preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention
Any amendment, equivalent and improvement etc. with being made within principle, should be included within the scope of the present invention.
Claims (10)
1. a novel seawaterline stray current detecting device, it is characterised in that include the stray electrical current sensing being sequentially connected
Module, measurement data acquisition instrument and upper computer software；
Described stray electrical current induction module is designed as a water flowing pipeline section being connected with former seawaterline, and method is mixed at water flowing pipeline section two ends
Blue structure, in order to replace the flange valve between former seawaterline, often holds the embedded conductive layer in described flange arrangement face, the method at two ends
Blue structure is provided with reference electrode, conductive layer and reference electrode lead-in wire and draws, and is connected to outside water flowing pipeline section through holding wire
Aviation plug；
Described measurement data acquisition instrument is located at outside water flowing pipeline section, is integrated with central processing unit and attached in measurement data acquisition instrument
Part, current measuring unit, potential measurement unit and electricity accumulator, current measuring unit, potential measurement unit and electricity accumulation
Device is connected with central processing unit respectively, wherein:
Current measuring unit accesses the current signal of stray electrical current induction module in a series arrangement, and current detecting unit is connected to electricity
Flow sensor, current sensor, with the embedded conductive layer in flange arrangement face that is arranged in for measuring end, is used for measuring tested former sea
The stray electrical current size of water lines, with positive and negative form record current direction and show；Current measuring unit is connected to electricity
Amount integrating instrument, records tested former seawaterline current value during by end per second and carries out ampere-hour electric quantity accumulation and show；Voltage
Detector unit is connected to potentiometric sensor, and potentiometric sensor, using reference electrode as reference end, is arranged in flange knot with embedded
Conductive layer on structure face, as measuring end, and shows the potential difference of reference electrode for measuring tested former seawaterline；
Measurement data acquisition instrument is provided with communication interface and aviation socket, and communication interface communicates with host computer, aviation socket with
The quick grafting of above-mentioned aviation plug.
One the most according to claim 1 novel seawaterline stray current detecting device, it is characterised in that described water flowing
Pipeline section two ends are consistent with the flange valve length between former seawaterline after mixing flange arrangement, internal diameter is consistent.
One the most according to claim 1 and 2 novel seawaterline stray current detecting device, it is characterised in that described
The sound end of reference electrode and former seawaterline inwall are in same level line.
One the most according to claim 1 and 2 novel seawaterline stray current detecting device, it is characterised in that described
Water flowing pipeline section outer surface increase has anticollision nylon structure.
One the most according to claim 1 and 2 novel seawaterline stray current detecting device, it is characterised in that described
Measurement data acquisition instrument communication interface is communicated with host computer by RS485 bus.
One the most according to claim 1 and 2 novel seawaterline stray current detecting device, it is characterised in that described
Water flowing pipeline section material is politef or nylon.
One the most according to claim 1 and 2 novel seawaterline stray current detecting device, it is characterised in that described
Lead-in wire is copper cash, silver wire or Kufil gold thread.
One the most according to claim 7 novel seawaterline stray current detecting device, it is characterised in that described lead-in wire
A diameter of 1-5 mm.
9. according to the one novel seawaterline stray current detecting device described in claim 1 or 2 or 8, it is characterised in that institute
Stating reference electrode is silver/silver chloride reference electrode.
10. according to the one novel seawaterline stray current detecting device described in claim 1 or 2 or 8, it is characterised in that
Described conductive layer is copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610486179.5A CN106124828A (en) | 2016-06-28 | 2016-06-28 | A kind of novel seawaterline stray current detecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610486179.5A CN106124828A (en) | 2016-06-28 | 2016-06-28 | A kind of novel seawaterline stray current detecting device |
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| CN106124828A true CN106124828A (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610486179.5A Pending CN106124828A (en) | 2016-06-28 | 2016-06-28 | A kind of novel seawaterline stray current detecting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036962A (en) * | 2017-05-26 | 2017-08-11 | 中国船舶重工集团公司第七二五研究所 | Seawater pipeline galvanic corrosion electric current on-site detecting device and measuring method |
| CN108169547A (en) * | 2017-11-14 | 2018-06-15 | 中国船舶重工集团公司第七二五研究所 | Drainage method and device is detected automatically for the stray electrical current of ship seawaterline |
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| CN102508018A (en) * | 2011-11-10 | 2012-06-20 | 上海电机学院 | Stray current monitoring and protecting device and method |
| CN102692885A (en) * | 2012-05-15 | 2012-09-26 | 西安理工大学 | Monitoring drainage control method of stray current |
| CN204101623U (en) * | 2014-08-04 | 2015-01-14 | 镇江大全赛雪龙牵引电气有限公司 | Intelligence monitoring of stray current sensor |
| CN105223413A (en) * | 2015-06-26 | 2016-01-06 | 中国船舶重工集团公司第七二五研究所 | A kind of marine ship seawater pipeline stray current detecting device |
| CN205003207U (en) * | 2015-08-24 | 2016-01-27 | 南京大全自动化科技有限公司 | Subway stray current collector |
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2016
- 2016-06-28 CN CN201610486179.5A patent/CN106124828A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508018A (en) * | 2011-11-10 | 2012-06-20 | 上海电机学院 | Stray current monitoring and protecting device and method |
| CN102692885A (en) * | 2012-05-15 | 2012-09-26 | 西安理工大学 | Monitoring drainage control method of stray current |
| CN204101623U (en) * | 2014-08-04 | 2015-01-14 | 镇江大全赛雪龙牵引电气有限公司 | Intelligence monitoring of stray current sensor |
| CN105223413A (en) * | 2015-06-26 | 2016-01-06 | 中国船舶重工集团公司第七二五研究所 | A kind of marine ship seawater pipeline stray current detecting device |
| CN205003207U (en) * | 2015-08-24 | 2016-01-27 | 南京大全自动化科技有限公司 | Subway stray current collector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036962A (en) * | 2017-05-26 | 2017-08-11 | 中国船舶重工集团公司第七二五研究所 | Seawater pipeline galvanic corrosion electric current on-site detecting device and measuring method |
| CN108169547A (en) * | 2017-11-14 | 2018-06-15 | 中国船舶重工集团公司第七二五研究所 | Drainage method and device is detected automatically for the stray electrical current of ship seawaterline |
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Application publication date: 20161116 |