CN103014720A - Large range long distance cathodic protection system and working method thereof - Google Patents
Large range long distance cathodic protection system and working method thereof Download PDFInfo
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- CN103014720A CN103014720A CN201210518967XA CN201210518967A CN103014720A CN 103014720 A CN103014720 A CN 103014720A CN 201210518967X A CN201210518967X A CN 201210518967XA CN 201210518967 A CN201210518967 A CN 201210518967A CN 103014720 A CN103014720 A CN 103014720A
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Abstract
The invention relates to a large range long distance cathodic protection system which comprises a control center, constant potential rectifiers and intelligent potential collectors. A plurality of constant potential rectifiers and intelligent potential collectors are arranged. The control center is internally provided with a potential regulating system and a memory. The large range long distance cathodic protection system is provided with the constant potential rectifiers and an output unit connected with the constant potential rectifiers. The constant potential rectifiers are arranged along a protective line pipe. Output number of the constant potential rectifiers is great so that the cathodic protection is long in distance and uniform in protection. According to the large range long distance cathodic protection system provided by the invention, the output potential can be automatically adjusted, and the adjusting error is small. Automatic adjustment is realized, so that the cathodic protection at each monitoring point on the whole line pipe meets the standard or most monitoring points meet the standard.
Description
Technical field
The present invention relates to a kind of cathodic protection system, specifically, is a kind of long apart from cathodic protection system and method for work thereof on a large scale.
Background technology
Along with expanding economy; buried metal pipeline and hardware quantity constantly increase; and these metallic conduits and hardware are embedded in the underground corrosion that easily causes for a long time; galvanic protection is one of present etch-proof main method; large for regional extent; buried metal pipeline and hardware that distribution distance is long; need to grow the galvanic protection of distance; yet grow at present few apart from system's output way of galvanic protection; potentiometric detection point is few; guard space is short; can only rely on manual detection and manual adjustment to solve galvanic protection up to standard of all objects in the zone; alignment error is large, the variation that can not automatically conform, thus it is up to standard to realize automatically regulating the whole up to standard or maximum monitoring points of the galvanic protection that reaches each monitoring point on the whole pipeline.
Summary of the invention
The present invention is directed to present length apart from galvanic protection, the output way is few, and potentiometric detection point is few; guard space is short, can only rely on manual detection and manual adjustment, and alignment error is large; the shortcomings such as variation that can not automatically conform have designed a kind of long apart from cathodic protection system and method for work thereof on a large scale.
Of the present invention long apart from cathodic protection system on a large scale; comprise control center; potentiostat; intelligence current potential Acquisition Instrument; potentiostat and intelligent current potential Acquisition Instrument all are provided with a plurality of; be provided with electric potential regulating system and storer in the control center; potentiostat is provided with output unit; output unit is connected with supplementary anode; the output unit of potentiostat all be arranged on protected body underground or under water and be connected; it is underground or under water that supplementary anode is arranged on; intelligence current potential Acquisition Instrument is connected with sensor; each potentiostat be connected the current potential Acquisition Instrument and be connected with control center; be provided with the setup control module that connects successively in the electric potential regulating system; data acquisition module; the polarized potential computing module; the actual potential comparison module; gap computing module up to standard; the adjustment amount computing module; current potential is adjusted analog module; analog electrical bits comparison module and adjusting module again; also be provided with the initial potential measurement module that connects successively in the electric potential regulating system; the test potential measurement module; potential variation statistical module and output unit chosen module; the potential variation statistical module is all adjusted analog module with current potential with data acquisition module and is linked to each other; the output unit chosen module links to each other with gap computing module up to standard; the analog electrical bits comparison module all links to each other with the setup control module with the actual potential comparison module; current potential is adjusted analog module and also is connected with counting module; technology modules links to each other with the analog electrical bits comparison module, and adjusting module links to each other with the adjustment amount computing module again.
Preferably, described sensor is polarized probe or reference electrode.
Preferably, control center, potentiostat, intelligent current potential Acquisition Instrument all are provided with communication module, each potentiostat be connected the communication module of current potential Acquisition Instrument and be connected by communication cable or wireless network with the communication module of control center.
Length is apart from the method for work of cathodic protection system on a large scale, and step is as follows:
1) the initial potential measurement module is controlled the check point A that each intelligent current potential Acquisition Instrument detects sensor
1~ A
qInitial potential send in the storer of control center and store, after the initial potential storage was finished, the initial potential measurement module sent steering order to the test potential measurement module;
2) the test potential measurement module receives the steering order that the initial potential measurement module sends, and alert is each potentiostat B
1~ B
pOutput unit artificial set an output unit check point corresponding with it, the test potential measurement module is controlled each potentiostat B successively
1~ B
pThe outward current of output unit increase gradually from 0, until the current potential V that the sensor at output unit check point place corresponding to the output unit of each potentiostat detects
B1~ V
BpIncrease test adjustment amount y, the output unit that the test potential measurement module is controlled each potentiostat that each intelligent current potential Acquisition Instrument pick-up transducers detects increases check point A behind the outward current
1~ A
qCurrent potential, and send it in the storer of control center and store, after the current potential storage was finished, the test potential measurement module sent steering order to the potential variation statistical module;
3) the potential variation statistical module receives the steering order that the test potential measurement module sends, and the potential variation statistical module extracts data from storer, calculates check point A
1~ A
qInitial potential and the output unit of each potentiostat increase check point A behind the outward current
1~ A
qCurrent potential between each check point A
1~ A
qThe potential variation amount, the potential variation statistical module is according to each potentiostat B
1~ B
pThe outward current variable quantity of output unit and each check point A
1~ A
qThe potential variation amount calculates each potentiostat B
1~ B
pOutput unit corresponding each check point A respectively
1~ A
qThe potential variation curve, and send it in the storer and store, after potential variation is calculated and is finished, the potential variation statistical module sends to current potential with the potential variation curve and adjusts analog module, the potential variation statistical module sends steering order to the output unit chosen module, and the output unit chosen module is selected each check point A
1~ A
qThe output unit of corresponding potentiostat was as the potentiostat that corresponding check point is had the greatest impact when the potential variation amount was maximum, and sent in the storer and store;
4) in control center, input presetting potential, the outward current of the output unit of each potentiostat of setup control module controls, make the energising current potential of the output unit of each potentiostat that detects by sensor reach presetting potential, after the energising current potential reached presetting potential, the setup control module was sent steering order as data acquisition module;
5) sensor detects polarized potential, energising current potential and the corrosion potential of each check point, each check point A that intelligent current potential Acquisition Instrument pick-up transducers detects
1~ A
qPolarized potential, energising current potential and corrosion potential, data acquisition module receives the steering order that the setup control module is sent, and data acquisition module controls that potential data that intelligent current potential Acquisition Instrument detects sensor sends to the polarized potential computing module and current potential is adjusted analog module;
6) the polarized potential computing module calculates check point A
1~ A
qThe difference of the polarized potential when gathering polarized potential and energising current potential, according to this difference, the polarized potential computing module calculates check point A
1~ A
qThe polarized potential of check point when not carrying out the polarized potential collection, the polarized potential computing module is with check point A
1~ A
qPolarized potential that measure and that calculate sends to the actual potential comparison module;
7) the actual potential comparison module is with check point A
1~ A
qPolarized potential and potential range up to standard that measure and that calculate compare, if the polarized potential of all check points all is positioned at potential range up to standard, current potential is up to standard, the actual potential comparison module sends steering order to the setup control module, makes the setup control module according to former each potentiostat operation of presetting potential control control; If there is the polarized potential of check point to be positioned at outside the potential range up to standard, current potential is not up to standard, and the actual potential comparison module sends the adjustment instruction to gap computing module up to standard;
8) gap computing module up to standard receives and adjusts instruction, and gap computing module up to standard calculates check point A not up to standard
1~ A
nDifference V between current potential and the immediate current potential up to standard
1~ V
n, gap computing module up to standard is with difference V
1~ V
nSend to the adjustment amount computing module, and send data to the output unit chosen module and extract instruction;
9) the output unit chosen module is according to check point A not up to standard
1~ A
nFrom storer, extract the potentiostat B that alignment has the greatest impact
1~ B
m, and it is sent to current potential by gap computing module up to standard, adjustment amount computing module successively adjust analog module;
10) the adjustment amount computing module receives difference V
1~ V
n, according to check point A
1~ A
nDifference V between current potential and the immediate current potential up to standard
1~ V
n, and alert sets initial adjustment amount factor alpha to the operation indicative control unit, after initial adjustment amount factor alpha was set and finished, the adjustment amount computing module was with difference V
1~ V
nMultiply each other with the adjustment amount factor alpha respectively, obtain potentiostat B
1~ B
mThe current potential adjustment amount Δ V of output unit
B1~ Δ V
Bm, and send it to current potential adjustment analog module;
11) current potential is adjusted analog module according to potentiostat B
1~ B
mThe current potential adjustment amount Δ V of output unit
B1~ Δ V
Bm, each potentiostat B in the storer
1~ B
pOutput unit corresponding each check point A respectively
1~ A
qPotential variation curve and current each check point A
1~ A
qCurrent current potential, computing constant potentiometer B
1~ B
mOutput unit according to current potential adjustment amount Δ V
B1~ Δ V
BmThe current potential numerical value V of all check points after adjusting
A1~ V
Aq, and with current potential numerical value V
A1~ V
AqSend to the analog electrical bits comparison module, counting module is adjusted analog module to coupled current potential and is counted, and count results is sent to storer and analog electrical bits comparison module;
12) the polarized potential V of analog electrical bits comparison module each check point that will calculate
A1~ V
AqAgain compare with potential range up to standard, if the polarized potential of each check point all is positioned at potential range up to standard, current potential is up to standard, and adjustment is finished, the analog electrical bits comparison module is sent steering order to the setup control module, makes the setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point again to be positioned at outside the potential range up to standard, current potential is not up to standard, and the counting of storage is above X time in the storer, adjustment is finished, the analog electrical bits comparison module is sent steering order to the setup control module, makes the setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point again to be positioned at outside the potential range up to standard, current potential is not up to standard, and the counting of storage in the storer surpasses X time, and the analog electrical bits comparison module is sent to adjusting module again and adjusted instruction again, and with current potential V
A1~ V
AqSend to again adjusting module with potential range up to standard;
13) adjusting module receives and adjusts instruction again again, adjusting module is calculated phase rate between polarized potential and the current potential up to standard according to the polarized potential that calculates and immediate potentiometer up to standard again, adjusting module is chosen maximum phase rate and according to the phase rate increase and decrease adjustment amount factor alpha of maximum again, adjusting module sends steering order to the adjustment amount computing module again, again carried out successively by step 10 beginning, until current potential all in the up to standard or storer counting of storage above X time.
Preferably, initial adjustment amount factor alpha is 0.5 or 1.
Preferably, the adjustment amount factor alpha is greater than 0, and the adjustment amount factor alpha is less than or equal to 10.
Preferably, described adjustment is 3 to 100 above number of times X.
Preferably, described test adjustment amount y is greater than-1V, and test adjustment amount y is less than 0V.
The invention has the beneficial effects as follows: length is provided with a plurality of potentiostats and coupled output unit apart from cathodic protection system on a large scale; potentiostat is along protected pipeline installing; constant potential output quantity is many; can realize the distance of galvanic protection; protection evenly; length is apart from the automatic adjusting of the output potential realized of cathodic protection system on a large scale; regulating error is little, thereby it is up to standard to realize automatically regulating the whole up to standard or maximum monitoring points of the galvanic protection that reaches each monitoring point on the whole pipeline.
Description of drawings
Accompanying drawing 1 is the system chart of growing on a large scale apart from cathodic protection system;
Accompanying drawing 2 is the built-in system block diagram of growing on a large scale apart from cathodic protection system control center.
Embodiment
Of the present invention long apart from cathodic protection system on a large scale; as shown in Figure 1; comprise control center; potentiostat; intelligence current potential Acquisition Instrument; potentiostat and intelligent current potential Acquisition Instrument all are provided with a plurality of; be provided with electric potential regulating system and storer in the control center; potentiostat is provided with output unit; output unit is connected with supplementary anode; the output unit of potentiostat all be arranged on protected body underground or under water and be connected; it is underground or under water that supplementary anode is arranged on; intelligence current potential Acquisition Instrument is connected with sensor, and sensor is polarized probe or reference electrode, each potentiostat be connected the current potential Acquisition Instrument and be connected with control center.
Be provided with the setup control module that connects successively in the electric potential regulating system, data acquisition module, the polarized potential computing module, the actual potential comparison module, gap computing module up to standard, the adjustment amount computing module, current potential is adjusted analog module, analog electrical bits comparison module and adjusting module again, also be provided with the initial potential measurement module that connects successively in the electric potential regulating system, the test potential measurement module, potential variation statistical module and output unit chosen module, the potential variation statistical module is all adjusted analog module with current potential with data acquisition module and is linked to each other, the output unit chosen module links to each other with gap computing module up to standard, the analog electrical bits comparison module all links to each other with the setup control module with the actual potential comparison module, current potential is adjusted analog module and also is connected with counting module, technology modules links to each other with the analog electrical bits comparison module, and adjusting module links to each other with the adjustment amount computing module again.
Control center, potentiostat, intelligent current potential Acquisition Instrument all are provided with communication module, each potentiostat be connected the communication module of current potential Acquisition Instrument and be connected by communication cable or wireless network with the communication module of control center.
When length was worked apart from cathodic protection system on a large scale, the initial potential measurement module was controlled the check point A that each intelligent current potential Acquisition Instrument detects sensor
1~ A
qInitial potential send in the storer of control center and store, after the initial potential storage was finished, the initial potential measurement module sent steering order to the test potential measurement module.
The test potential measurement module receives the steering order that the initial potential measurement module sends, and alert is each potentiostat B
1~ B
pOutput unit artificial set an output unit check point corresponding with it, the test potential measurement module is controlled each potentiostat B successively
1~ B
pThe outward current of output unit increase gradually from 0, until the current potential V that the sensor at output unit check point place corresponding to the output unit of each potentiostat detects
B1~ V
BpIncrease test adjustment amount y, the output unit that the test potential measurement module is controlled each potentiostat that each intelligent current potential Acquisition Instrument pick-up transducers detects increases check point A behind the outward current
1~ A
qCurrent potential, and send it in the storer of control center and store, after the current potential storage was finished, the test potential measurement module sent steering order to the potential variation statistical module.
The potential variation statistical module receives the steering order that the test potential measurement module sends, and the potential variation statistical module extracts data from storer, calculates check point A
1~ A
qInitial potential and the output unit of each potentiostat increase check point A behind the outward current
1~ A
qCurrent potential between each check point A
1~ A
qThe potential variation amount, the potential variation statistical module is according to each potentiostat B
1~ B
pThe outward current variable quantity of output unit and each check point A
1~ A
qThe potential variation amount calculates each potentiostat B
1~ B
pOutput unit corresponding each check point A respectively
1~ A
qThe potential variation curve, and send it in the storer and store, after potential variation is calculated and is finished, the potential variation statistical module sends to current potential with the potential variation curve and adjusts analog module, the potential variation statistical module sends steering order to the output unit chosen module, and the output unit chosen module is selected each check point A
1~ A
qThe output unit of corresponding potentiostat was as the potentiostat that corresponding check point is had the greatest impact when the potential variation amount was maximum, and sent in the storer and store.
In control center, input presetting potential, the outward current of the output unit of each potentiostat of setup control module controls, make the energising current potential of the output unit of each potentiostat that detects by sensor reach presetting potential, after the energising current potential reached presetting potential, the setup control module was sent steering order as data acquisition module.
Sensor detects polarized potential, energising current potential and the corrosion potential of each check point, each check point A that intelligent current potential Acquisition Instrument pick-up transducers detects
1~ A
qPolarized potential, energising current potential and corrosion potential, data acquisition module receives the steering order that the setup control module is sent, and data acquisition module controls that potential data that intelligent current potential Acquisition Instrument detects sensor sends to the polarized potential computing module and current potential is adjusted analog module.
The polarized potential computing module calculates check point A
1~ A
qThe difference of the polarized potential when gathering polarized potential and energising current potential, according to this difference, the polarized potential computing module calculates check point A
1~ A
qThe polarized potential of check point when not carrying out the polarized potential collection, the polarized potential computing module is with check point A
1~ A
qPolarized potential that measure and that calculate sends to the actual potential comparison module.
The actual potential comparison module is with check point A
1~ A
qPolarized potential and potential range up to standard that measure and that calculate compare, if the polarized potential of all check points all is positioned at potential range up to standard, current potential is up to standard, the actual potential comparison module sends steering order to the setup control module, makes the setup control module according to former each potentiostat operation of presetting potential control control; If there is the polarized potential of check point to be positioned at outside the potential range up to standard, current potential is not up to standard, and the actual potential comparison module sends the adjustment instruction to gap computing module up to standard.
Gap computing module up to standard receives adjusts instruction, and gap computing module up to standard calculates check point A not up to standard
1~ A
nDifference V between current potential and the immediate current potential up to standard
1~ V
n, gap computing module up to standard is with difference V
1~ V
nSend to the adjustment amount computing module, and send data to the output unit chosen module and extract instruction.
The output unit chosen module is according to check point A not up to standard
1~ A
nFrom storer, extract the potentiostat B that alignment has the greatest impact
1~ B
m, and it is sent to current potential by gap computing module up to standard, adjustment amount computing module successively adjust analog module.
The adjustment amount computing module receives difference V
1~ V
n, according to check point A
1~ A
nDifference V between current potential and the immediate current potential up to standard
1~ V
n, and alert sets initial adjustment amount factor alpha to the operation indicative control unit, after initial adjustment amount factor alpha was set and finished, the adjustment amount computing module was with difference V
1~ V
nMultiply each other with the adjustment amount factor alpha respectively, obtain potentiostat B
1~ B
mThe current potential adjustment amount Δ V of output unit
B1~ Δ V
Bm, and send it to current potential adjustment analog module.
Current potential is adjusted analog module according to potentiostat B
1~ B
mThe current potential adjustment amount Δ V of output unit
B1~ Δ V
Bm, each potentiostat B in the storer
1~ B
pOutput unit corresponding each check point A respectively
1~ A
qPotential variation curve and current each check point A
1~ A
qCurrent current potential, computing constant potentiometer B
1~ B
mOutput unit according to current potential adjustment amount Δ V
B1~ Δ V
BmThe current potential numerical value V of all check points after adjusting
A1~ V
Aq, and with current potential numerical value V
A1~ V
AqSend to the analog electrical bits comparison module, counting module is adjusted analog module to coupled current potential and is counted, and count results is sent to storer and analog electrical bits comparison module.
The polarized potential V of each check point that the analog electrical bits comparison module will calculate
A1~ V
AqAgain compare with potential range up to standard, if the polarized potential of each check point all is positioned at potential range up to standard, current potential is up to standard, and adjustment is finished, the analog electrical bits comparison module is sent steering order to the setup control module, makes the setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point again to be positioned at outside the potential range up to standard, current potential is not up to standard, and the counting of storage is above X time in the storer, adjustment is finished, the analog electrical bits comparison module is sent steering order to the setup control module, makes the setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point again to be positioned at outside the potential range up to standard, current potential is not up to standard, and the counting of storage in the storer surpasses X time, and the analog electrical bits comparison module is sent to adjusting module again and adjusted instruction again, and with current potential V
A1~ V
AqSend to again adjusting module with potential range up to standard.
It is 3 to 100 that described adjustment surpasses number of times X.
Adjusting module receives and adjusts instruction again again, adjusting module is calculated phase rate between polarized potential and the current potential up to standard according to the polarized potential that calculates and immediate potentiometer up to standard again, adjusting module is chosen maximum phase rate and according to the phase rate increase and decrease adjustment amount factor alpha of maximum again, the adjustment amount factor alpha is greater than 0, the adjustment amount factor alpha is less than or equal to 10, adjusting module sends steering order to the adjustment amount computing module again, and the adjustment amount computing module is again with difference V
1~ V
nMultiply each other with new adjustment amount factor alpha respectively, obtain new potentiostat B
1~ B
mThe current potential adjustment amount Δ V of output unit
B1~ Δ V
Bm, then carry out successively subsequent step, until current potential all in the up to standard or storer counting of storage above X time.
Claims (8)
1. one kind long apart from cathodic protection system on a large scale; comprise control center; potentiostat; intelligence current potential Acquisition Instrument; potentiostat and intelligent current potential Acquisition Instrument all are provided with a plurality of; be provided with electric potential regulating system and storer in the control center; potentiostat is provided with output unit; output unit is connected with supplementary anode; the output unit of potentiostat all be arranged on protected body underground or under water and be connected; it is underground or under water that supplementary anode is arranged on; intelligence current potential Acquisition Instrument is connected with sensor; each potentiostat be connected the current potential Acquisition Instrument and be connected with control center; it is characterized in that; be provided with the setup control module that connects successively in the electric potential regulating system; data acquisition module; the polarized potential computing module; the actual potential comparison module; gap computing module up to standard; the adjustment amount computing module; current potential is adjusted analog module; analog electrical bits comparison module and adjusting module again; also be provided with the initial potential measurement module that connects successively in the electric potential regulating system; the test potential measurement module; potential variation statistical module and output unit chosen module; the potential variation statistical module is all adjusted analog module with current potential with data acquisition module and is linked to each other; the output unit chosen module links to each other with gap computing module up to standard; the analog electrical bits comparison module all links to each other with the setup control module with the actual potential comparison module; current potential is adjusted analog module and also is connected with counting module; technology modules links to each other with the analog electrical bits comparison module, and adjusting module links to each other with the adjustment amount computing module again.
2. cathodic protection system according to claim 1 is characterized in that, described sensor is polarized probe or reference electrode.
3. cathodic protection system according to claim 1 and 2; it is characterized in that; control center, potentiostat, intelligent current potential Acquisition Instrument all are provided with communication module, each potentiostat be connected the communication module of current potential Acquisition Instrument and be connected by communication cable or wireless network with the communication module of control center.
4. a method of work of growing on a large scale apart from cathodic protection system is characterized in that, step is as follows:
1) the initial potential measurement module is controlled the check point A that each intelligent current potential Acquisition Instrument detects sensor
1~ A
qInitial potential send in the storer of control center and store, after the initial potential storage was finished, the initial potential measurement module sent steering order to the test potential measurement module;
2) the test potential measurement module receives the steering order that the initial potential measurement module sends, and alert is each potentiostat B
1~ B
pOutput unit artificial set an output unit check point corresponding with it, the test potential measurement module is controlled each potentiostat B successively
1~ B
pThe outward current of output unit increase gradually from 0, until the current potential V that the sensor at output unit check point place corresponding to the output unit of each potentiostat detects
B1~ V
BpIncrease test adjustment amount y, the output unit that the test potential measurement module is controlled each potentiostat that each intelligent current potential Acquisition Instrument pick-up transducers detects increases check point A behind the outward current
1~ A
qCurrent potential, and send it in the storer of control center and store, after the current potential storage was finished, the test potential measurement module sent steering order to the potential variation statistical module;
3) the potential variation statistical module receives the steering order that the test potential measurement module sends, and the potential variation statistical module extracts data from storer, calculates check point A
1~ A
qInitial potential and the output unit of each potentiostat increase check point A behind the outward current
1~ A
qCurrent potential between each check point A
1~ A
qThe potential variation amount, the potential variation statistical module is according to each potentiostat B
1~ B
pThe outward current variable quantity of output unit and each check point A
1~ A
qThe potential variation amount calculates each potentiostat B
1~ B
pOutput unit corresponding each check point A respectively
1~ A
qThe potential variation curve, and send it in the storer and store, after potential variation is calculated and is finished, the potential variation statistical module sends to current potential with the potential variation curve and adjusts analog module, the potential variation statistical module sends steering order to the output unit chosen module, and the output unit chosen module is selected each check point A
1~ A
qThe output unit of corresponding potentiostat was as the potentiostat that corresponding check point is had the greatest impact when the potential variation amount was maximum, and sent in the storer and store;
4) in control center, input presetting potential, the outward current of the output unit of each potentiostat of setup control module controls, make the energising current potential of the output unit of each potentiostat that detects by sensor reach presetting potential, after the energising current potential reached presetting potential, the setup control module was sent steering order as data acquisition module;
5) sensor detects polarized potential, energising current potential and the corrosion potential of each check point, each check point A that intelligent current potential Acquisition Instrument pick-up transducers detects
1~ A
qPolarized potential, energising current potential and corrosion potential, data acquisition module receives the steering order that the setup control module is sent, and data acquisition module controls that potential data that intelligent current potential Acquisition Instrument detects sensor sends to the polarized potential computing module and current potential is adjusted analog module;
6) the polarized potential computing module calculates check point A
1~ A
qThe difference of the polarized potential when gathering polarized potential and energising current potential, according to this difference, the polarized potential computing module calculates check point A
1~ A
qThe polarized potential of check point when not carrying out the polarized potential collection, the polarized potential computing module is with check point A
1~ A
qPolarized potential that measure and that calculate sends to the actual potential comparison module;
7) the actual potential comparison module is with check point A
1~ A
qPolarized potential and potential range up to standard that measure and that calculate compare, if the polarized potential of all check points all is positioned at potential range up to standard, current potential is up to standard, the actual potential comparison module sends steering order to the setup control module, makes the setup control module according to former each potentiostat operation of presetting potential control control; If there is the polarized potential of check point to be positioned at outside the potential range up to standard, current potential is not up to standard, and the actual potential comparison module sends the adjustment instruction to gap computing module up to standard;
8) gap computing module up to standard receives and adjusts instruction, and gap computing module up to standard calculates check point A not up to standard
1~ A
nDifference V between current potential and the immediate current potential up to standard
1~ V
n, gap computing module up to standard is with difference V
1~ V
nSend to the adjustment amount computing module, and send data to the output unit chosen module and extract instruction;
9) the output unit chosen module is according to check point A not up to standard
1~ A
nFrom storer, extract the potentiostat B that alignment has the greatest impact
1~ B
m, and it is sent to current potential by gap computing module up to standard, adjustment amount computing module successively adjust analog module;
10) the adjustment amount computing module receives difference V
1~ V
n, according to check point A
1~ A
nDifference V between current potential and the immediate current potential up to standard
1~ V
n, and alert sets initial adjustment amount factor alpha to the operation indicative control unit, after initial adjustment amount factor alpha was set and finished, the adjustment amount computing module was with difference V
1~ V
nMultiply each other with the adjustment amount factor alpha respectively, obtain potentiostat B
1~ B
mThe current potential adjustment amount Δ V of output unit
B1~ Δ V
Bm, and send it to current potential adjustment analog module;
11) current potential is adjusted analog module according to potentiostat B
1~ B
mThe current potential adjustment amount Δ V of output unit
B1~ Δ V
Bm, each potentiostat B in the storer
1~ B
pOutput unit corresponding each check point A respectively
1~ A
qPotential variation curve and current each check point A
1~ A
qCurrent current potential, computing constant potentiometer B
1~ B
mOutput unit according to current potential adjustment amount Δ V
B1~ Δ V
BmThe current potential numerical value V of all check points after adjusting
A1~ V
Aq, and with current potential numerical value V
A1~ V
AqSend to the analog electrical bits comparison module, counting module is adjusted analog module to coupled current potential and is counted, and count results is sent to storer and analog electrical bits comparison module;
12) the polarized potential V of analog electrical bits comparison module each check point that will calculate
A1~ V
AqAgain compare with potential range up to standard, if the polarized potential of each check point all is positioned at potential range up to standard, current potential is up to standard, and adjustment is finished, the analog electrical bits comparison module is sent steering order to the setup control module, makes the setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point again to be positioned at outside the potential range up to standard, current potential is not up to standard, and the counting of storage is above X time in the storer, adjustment is finished, the analog electrical bits comparison module is sent steering order to the setup control module, makes the setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point again to be positioned at outside the potential range up to standard, current potential is not up to standard, and the counting of storage in the storer surpasses X time, and the analog electrical bits comparison module is sent to adjusting module again and adjusted instruction again, and with current potential V
A1~ V
AqSend to again adjusting module with potential range up to standard;
13) adjusting module receives and adjusts instruction again again, adjusting module is calculated phase rate between polarized potential and the current potential up to standard according to the polarized potential that calculates and immediate potentiometer up to standard again, adjusting module is chosen maximum phase rate and according to the phase rate increase and decrease adjustment amount factor alpha of maximum again, adjusting module sends steering order to the adjustment amount computing module again, again carried out successively by step 10 beginning, until current potential all in the up to standard or storer counting of storage above X time.
5. the method for work of cathodic protection system according to claim 4 is characterized in that, initial adjustment amount factor alpha is 0.5 or 1.
6. the method for work of cathodic protection system according to claim 4 is characterized in that, the adjustment amount factor alpha is greater than 0, and the adjustment amount factor alpha is less than or equal to 10.
7. the method for work of cathodic protection system according to claim 4 is characterized in that, it is 3 to 100 that described adjustment surpasses number of times X.
8. the method for work of cathodic protection system according to claim 4 is characterized in that, described test adjustment amount y is greater than-1V, and test adjustment amount y is less than 0V.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614730A (en) * | 2013-11-27 | 2014-03-05 | 北京安科管道工程科技有限公司 | System and method for monitoring buried pipeline cathode protection |
| CN103981527A (en) * | 2014-05-29 | 2014-08-13 | 中国船舶重工集团公司第七二五研究所 | Multichannel ocean platform cathode protection parameter monitoring device |
| CN104266086A (en) * | 2014-09-25 | 2015-01-07 | 中国海洋石油总公司 | Data collection system for non-contact type detection of submarine pipeline potential distribution |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4609448A (en) * | 1984-12-24 | 1986-09-02 | Texaco Inc. | Cathodic protection monitor system for submerged structures |
| US5325047A (en) * | 1992-08-17 | 1994-06-28 | After Zero Technology Corporation | Voltage monitoring apparatus, as for monitoring cathodic protection voltage on an underground pipeline |
| WO1999024641A1 (en) * | 1997-11-12 | 1999-05-20 | Institute Of Gas Technology | Remote cathodic protection monitoring system |
| US20020008042A1 (en) * | 2000-06-20 | 2002-01-24 | Pierro Joseph J. | Synchronous detection and remote monitoring and regulating of cell potential for cathodic protection |
| US20030189435A1 (en) * | 2002-04-04 | 2003-10-09 | Mark Yunovich | Automated cathodic protection monitor and control system |
| CN101045994A (en) * | 2006-03-29 | 2007-10-03 | 宝山钢铁股份有限公司 | Sacrificial anode or cathod protected automatic detecting and treating system |
| CN102337542A (en) * | 2011-07-19 | 2012-02-01 | 华电能源股份有限公司 | Detection method and apparatus for buried metal pipeline cathode protection system |
| CN202309549U (en) * | 2011-08-03 | 2012-07-04 | 苏州热工研究院有限公司 | Fuzzy double-closed-loop control phase-shift full-bridge soft-switching IPM (intelligent power module) intelligent potentiostat |
| CN102719828A (en) * | 2012-07-02 | 2012-10-10 | 中交四航工程研究院有限公司 | Constant-current intermittent cathodic protection and corrosion acceleration system and implementation method thereof |
-
2012
- 2012-12-06 CN CN201210518967.XA patent/CN103014720B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4609448A (en) * | 1984-12-24 | 1986-09-02 | Texaco Inc. | Cathodic protection monitor system for submerged structures |
| US5325047A (en) * | 1992-08-17 | 1994-06-28 | After Zero Technology Corporation | Voltage monitoring apparatus, as for monitoring cathodic protection voltage on an underground pipeline |
| WO1999024641A1 (en) * | 1997-11-12 | 1999-05-20 | Institute Of Gas Technology | Remote cathodic protection monitoring system |
| US20020008042A1 (en) * | 2000-06-20 | 2002-01-24 | Pierro Joseph J. | Synchronous detection and remote monitoring and regulating of cell potential for cathodic protection |
| US20030189435A1 (en) * | 2002-04-04 | 2003-10-09 | Mark Yunovich | Automated cathodic protection monitor and control system |
| CN101045994A (en) * | 2006-03-29 | 2007-10-03 | 宝山钢铁股份有限公司 | Sacrificial anode or cathod protected automatic detecting and treating system |
| CN102337542A (en) * | 2011-07-19 | 2012-02-01 | 华电能源股份有限公司 | Detection method and apparatus for buried metal pipeline cathode protection system |
| CN202309549U (en) * | 2011-08-03 | 2012-07-04 | 苏州热工研究院有限公司 | Fuzzy double-closed-loop control phase-shift full-bridge soft-switching IPM (intelligent power module) intelligent potentiostat |
| CN102719828A (en) * | 2012-07-02 | 2012-10-10 | 中交四航工程研究院有限公司 | Constant-current intermittent cathodic protection and corrosion acceleration system and implementation method thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614730A (en) * | 2013-11-27 | 2014-03-05 | 北京安科管道工程科技有限公司 | System and method for monitoring buried pipeline cathode protection |
| CN103614730B (en) * | 2013-11-27 | 2016-02-10 | 北京安科管道工程科技有限公司 | To the system and method that buried pipeline galvanic protection is monitored |
| CN103981527A (en) * | 2014-05-29 | 2014-08-13 | 中国船舶重工集团公司第七二五研究所 | Multichannel ocean platform cathode protection parameter monitoring device |
| CN104266086A (en) * | 2014-09-25 | 2015-01-07 | 中国海洋石油总公司 | Data collection system for non-contact type detection of submarine pipeline potential distribution |
| CN105987283A (en) * | 2015-01-28 | 2016-10-05 | 上海远动科技有限公司 | Cathodic protection remote monitoring device for natural gas pipelines based on an SCAD system |
| CN106483065B (en) * | 2015-08-31 | 2020-08-07 | 中国石油天然气股份有限公司 | Method and device for detecting electrochemical performance of sacrificial anode in corrosion environment of outer wall of simulated underground casing |
| CN106483065A (en) * | 2015-08-31 | 2017-03-08 | 中国石油天然气股份有限公司 | A kind of method and apparatus detecting sacrificial anode electrochemical performance in the down-hole casing outer wall corrosion environment in simulation |
| CN108070867A (en) * | 2016-11-08 | 2018-05-25 | 中国石油天然气股份有限公司 | Cathodic protection monitoring method and device |
| CN109136939A (en) * | 2017-11-30 | 2019-01-04 | 中国石油天然气股份有限公司 | A kind of pipeline polarization potential acquisition methods |
| CN110257831A (en) * | 2019-07-24 | 2019-09-20 | 青岛雅合科技发展有限公司 | Storage tank impressed current cathodic protection control method |
| CN111621792A (en) * | 2020-07-03 | 2020-09-04 | 中国石油化工集团有限公司 | Pipeline cathode protection output adjusting system and adjusting method |
| CN111621792B (en) * | 2020-07-03 | 2022-03-22 | 中国石油化工集团有限公司 | Pipeline cathode protection output adjusting system and adjusting method |
| CN111534823A (en) * | 2020-07-08 | 2020-08-14 | 浙江浙能天然气运行有限公司 | Potentiostat intelligent control module, potentiostat intelligent control system and potentiostat intelligent control method |
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