CN103014720B - 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
- Publication number
- CN103014720B CN103014720B CN201210518967.XA CN201210518967A CN103014720B CN 103014720 B CN103014720 B CN 103014720B CN 201210518967 A CN201210518967 A CN 201210518967A CN 103014720 B CN103014720 B CN 103014720B
- Authority
- CN
- China
- Prior art keywords
- potential
- module
- current potential
- standard
- potentiostat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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 current 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 the system 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 region, alignment error is large, variation automatically can not conform, thereby all up to standard or maximum monitoring points are up to standard cannot to realize galvanic protection that automatic adjusting reaches each monitoring point on whole pipeline.
Summary of the invention
The present invention is directed to current length apart from galvanic protection, 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 are all provided with a plurality of, in control center, be provided with electric potential regulating system and storer, 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 is connected with intelligent current potential Acquisition Instrument Dou Yu control center, in electric potential regulating system, be provided with the setup control module connecting successively, data acquisition module, polarized potential computing module, actual potential comparison module, gap computing module up to standard, adjustment amount computing module, current potential is adjusted analog module, analog electrical bits comparison module and again adjusting module, in electric potential regulating system, be also provided with the initial potential measurement module connecting successively, test potential measurement module, potential variation statistical module and output unit chosen module, potential variation statistical module is all adjusted analog module with current potential with data acquisition module and is connected, output unit chosen module is connected with gap computing module up to standard, analog electrical bits comparison module is all connected with setup control module with actual potential comparison module, current potential is adjusted analog module and is also connected with counting module, counting module is connected with analog electrical bits comparison module, adjusting module is connected with adjustment amount computing module again.
Preferably, described sensor is polarized probe or reference electrode.
Preferably, control center, potentiostat, intelligent current potential Acquisition Instrument are all provided with communication module, and the communication module of the communication module Dou Yu control center of each potentiostat and intelligent current potential Acquisition Instrument is connected by communication cable or wireless network.
Length is apart from the method for work of cathodic protection system on a large scale, and step is as follows:
1) 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 initial potential has been stored, initial potential measurement module sends steering order to test potential measurement module;
2) test potential measurement module receives the steering order that 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, 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 test potential measurement module is controlled each potentiostat that each intelligent current potential Acquisition Instrument pick-up transducers detects increases check point A after outward current
1～A
qcurrent potential, and send it in the storer of control center and store, after current potential has been stored, test potential measurement module sends steering order to potential variation statistical module;
3) potential variation statistical module receives the steering order that test potential measurement module sends, and 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 after outward current
1～A
qcurrent potential between each check point A
1～A
qpotential variation amount, 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
qpotential variation amount calculates each potentiostat B
1～B
poutput unit corresponding each check point A respectively
1～A
qpotential variation curve, and send it in storer and store, after potential variation has been calculated, potential variation statistical module sends to current potential to adjust analog module potential variation curve, potential variation statistical module sends steering order to output unit chosen module, and output unit chosen module is selected each check point A
1～A
qwhen potential variation amount is maximum, the output unit of corresponding potentiostat is as the potentiostat that corresponding check point is had the greatest impact, and sends in 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 of detecting by sensor reach presetting potential, energising current potential reaches after presetting potential, and setup control module is sent steering order to 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 setup control module is sent, and data acquisition module controls that potential data that intelligent current potential Acquisition Instrument detects sensor sends to polarized potential computing module and current potential is adjusted analog module;
6) polarized potential computing module calculates check point A
1～A
qthe difference of the polarized potential while gathering polarized potential and energising current potential, according to this difference, polarized potential computing module calculates check point A
1～A
qthe polarized potential of check point while not carrying out polarized potential collection, polarized potential computing module is by check point A
1～A
qpolarized potential that measure and that calculate sends to actual potential comparison module;
7) actual potential comparison module is by 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 is all positioned at potential range up to standard, current potential is up to standard, actual potential comparison module sends steering order to setup control module, makes setup control module control each potentiostat operation according to former presetting potential; If there is the polarized potential of check point to be positioned at outside potential range up to standard, current potential is not up to standard, and actual potential comparison module sends 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 immediate current potential up to standard
1～V
n, gap computing module up to standard is by difference V
1～V
nsend to adjustment amount computing module, and to output unit chosen module, send data and extract instruction;
9) output unit chosen module is according to check point A not up to standard
1～A
nfrom storer, extract the potentiostat B that it is had the greatest impact
1～B
m, and it is sent to current potential adjustment analog module by gap computing module up to standard, adjustment amount computing module successively;
10) adjustment amount computing module receives difference V
1～V
n, according to check point A
1～A
ndifference V between current potential and immediate current potential up to standard
1～V
n, and alert to operation indicative control unit set initial adjustment amount factor alpha, after initial adjustment amount factor alpha has been set, adjustment amount computing module is by difference V
1～V
nmultiply each other with 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 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, calculates potentiostat 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 by current potential numerical value V
a1～V
aqsend to 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) analog electrical bits comparison module is by the polarized potential V of each check point calculating
a1～V
aqagain with potential range comparison up to standard, if the polarized potential of each check point is all positioned at potential range up to standard, current potential is up to standard, and adjustment completes, analog electrical bits comparison module is sent steering order to setup control module, makes setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point to be again positioned at outside potential range up to standard, current potential is not up to standard, and in storer, the counting of storage is over X time, adjustment completes, analog electrical bits comparison module is sent steering order to setup control module, makes setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point to be again positioned at outside potential range up to standard, current potential is not up to standard, and the counting of storage in storer do not surpass X time, and analog electrical bits comparison module is sent and adjusted instruction again to adjusting module again, and by current potential V
a1～V
aqsend to adjusting module again 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 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 is increased and decreased adjustment amount factor alpha according to maximum phase rate again, adjusting module sends steering order to adjustment amount computing module again, again by step 10, started to carry out successively, until current potential all in up to standard or storer the counting of storage over X time.
Preferably, initial adjustment amount factor alpha is 0.5 or 1.
Preferably, adjustment amount factor alpha is greater than 0, and adjustment amount factor alpha is less than or equal to 10.
Preferably, described adjustment is 3 to 100 over number of times X.
Preferably, described be greater than-1V of test adjustment amount y, 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; the automatic adjusting of the long output potential realized apart from cathodic protection system on a large scale; regulating error is little, thereby can realize galvanic protection that automatic adjusting reaches each monitoring point on whole pipeline, all up to standard or maximum monitoring points are up to standard.
Accompanying drawing explanation
Accompanying drawing 1 is to grow the system chart apart from cathodic protection system on a large scale;
Accompanying drawing 2 is to grow the built-in system block diagram apart from cathodic protection system control center on a large scale.
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 are all provided with a plurality of, in control center, be provided with electric potential regulating system and storer, 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, sensor is polarized probe or reference electrode, each potentiostat is connected with intelligent current potential Acquisition Instrument Dou Yu control center.
In electric potential regulating system, be provided with the setup control module connecting successively, data acquisition module, polarized potential computing module, actual potential comparison module, gap computing module up to standard, adjustment amount computing module, current potential is adjusted analog module, analog electrical bits comparison module and again adjusting module, in electric potential regulating system, be also provided with the initial potential measurement module connecting successively, test potential measurement module, potential variation statistical module and output unit chosen module, potential variation statistical module is all adjusted analog module with current potential with data acquisition module and is connected, output unit chosen module is connected with gap computing module up to standard, analog electrical bits comparison module is all connected with setup control module with actual potential comparison module, current potential is adjusted analog module and is also connected with counting module, counting module is connected with analog electrical bits comparison module, adjusting module is connected with adjustment amount computing module again.
Control center, potentiostat, intelligent current potential Acquisition Instrument are all provided with communication module, and the communication module of the communication module Dou Yu control center of each potentiostat and intelligent current potential Acquisition Instrument is connected by communication cable or wireless network.
When length is worked apart from cathodic protection system on a large scale, 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 initial potential has been stored, initial potential measurement module sends steering order to test potential measurement module.
Test potential measurement module receives the steering order that 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, 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 test potential measurement module is controlled each potentiostat that each intelligent current potential Acquisition Instrument pick-up transducers detects increases check point A after outward current
1～A
qcurrent potential, and send it in the storer of control center and store, after current potential has been stored, test potential measurement module sends steering order to potential variation statistical module.
Potential variation statistical module receives the steering order that test potential measurement module sends, and 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 after outward current
1～A
qcurrent potential between each check point A
1～A
qpotential variation amount, 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
qpotential variation amount calculates each potentiostat B
1～B
poutput unit corresponding each check point A respectively
1～A
qpotential variation curve, and send it in storer and store, after potential variation has been calculated, potential variation statistical module sends to current potential to adjust analog module potential variation curve, potential variation statistical module sends steering order to output unit chosen module, and output unit chosen module is selected each check point A
1～A
qwhen potential variation amount is maximum, the output unit of corresponding potentiostat is as the potentiostat that corresponding check point is had the greatest impact, and sends in 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 of detecting by sensor reach presetting potential, energising current potential reaches after presetting potential, and setup control module is sent steering order to 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 setup control module is sent, and data acquisition module controls that potential data that intelligent current potential Acquisition Instrument detects sensor sends to polarized potential computing module and current potential is adjusted analog module.
Polarized potential computing module calculates check point A
1～A
qthe difference of the polarized potential while gathering polarized potential and energising current potential, according to this difference, polarized potential computing module calculates check point A
1～A
qthe polarized potential of check point while not carrying out polarized potential collection, polarized potential computing module is by check point A
1～A
qpolarized potential that measure and that calculate sends to actual potential comparison module.
Actual potential comparison module is by 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 is all positioned at potential range up to standard, current potential is up to standard, actual potential comparison module sends steering order to setup control module, makes setup control module control each potentiostat operation according to former presetting potential; If there is the polarized potential of check point to be positioned at outside potential range up to standard, current potential is not up to standard, and actual potential comparison module sends 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 immediate current potential up to standard
1～V
n, gap computing module up to standard is by difference V
1～V
nsend to adjustment amount computing module, and to output unit chosen module, send data and extract instruction.
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 adjustment analog module by gap computing module up to standard, adjustment amount computing module successively.
Adjustment amount computing module receives difference V
1～V
n, according to check point A
1～A
ndifference V between current potential and immediate current potential up to standard
1～V
n, and alert to operation indicative control unit set initial adjustment amount factor alpha, after initial adjustment amount factor alpha has been set, adjustment amount computing module is by difference V
1～V
nmultiply each other with 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 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, calculates potentiostat 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 by current potential numerical value V
a1～V
aqsend to 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.
Analog electrical bits comparison module is by the polarized potential V of each check point calculating
a1～V
aqagain with potential range comparison up to standard, if the polarized potential of each check point is all positioned at potential range up to standard, current potential is up to standard, and adjustment completes, analog electrical bits comparison module is sent steering order to setup control module, makes setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point to be again positioned at outside potential range up to standard, current potential is not up to standard, and in storer, the counting of storage is over X time, adjustment completes, analog electrical bits comparison module is sent steering order to setup control module, makes setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point to be again positioned at outside potential range up to standard, current potential is not up to standard, and the counting of storage in storer do not surpass X time, and analog electrical bits comparison module is sent and adjusted instruction again to adjusting module again, and by current potential V
a1～V
aqsend to adjusting module again 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 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 is increased and decreased adjustment amount factor alpha according to maximum phase rate again, adjustment amount factor alpha is greater than 0, adjustment amount factor alpha is less than or equal to 10, adjusting module sends steering order to adjustment amount computing module again, and adjustment amount computing module is again by 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 up to standard or storer the counting of storage over 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 are all provided with a plurality of, in control center, be provided with electric potential regulating system and storer, 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 is connected with intelligent current potential Acquisition Instrument Dou Yu control center, it is characterized in that, in electric potential regulating system, be provided with the setup control module connecting successively, data acquisition module, polarized potential computing module, actual potential comparison module, gap computing module up to standard, adjustment amount computing module, current potential is adjusted analog module, analog electrical bits comparison module and again adjusting module, in electric potential regulating system, be also provided with the initial potential measurement module connecting successively, test potential measurement module, potential variation statistical module and output unit chosen module, potential variation statistical module is all adjusted analog module with current potential with data acquisition module and is connected, output unit chosen module is connected with gap computing module up to standard, analog electrical bits comparison module is all connected with setup control module with actual potential comparison module, current potential is adjusted analog module and is also connected with counting module, counting module is connected with analog electrical bits comparison module, adjusting module is connected with 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 are all provided with communication module, and the communication module of the communication module Dou Yu control center of each potentiostat and intelligent current potential Acquisition Instrument is connected by communication cable or wireless network.
4. length, apart from a method of work for cathodic protection system, is characterized in that on a large scale, and step is as follows:
1) 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 initial potential has been stored, initial potential measurement module sends steering order to test potential measurement module;
2) test potential measurement module receives the steering order that 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, 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 test potential measurement module is controlled each potentiostat that each intelligent current potential Acquisition Instrument pick-up transducers detects increases check point A after outward current
1～A
qcurrent potential, and send it in the storer of control center and store, after current potential has been stored, test potential measurement module sends steering order to potential variation statistical module;
3) potential variation statistical module receives the steering order that test potential measurement module sends, and 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 after outward current
1～A
qcurrent potential between each check point A
1～A
qpotential variation amount, 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
qpotential variation amount calculates each potentiostat B
1～B
poutput unit corresponding each check point A respectively
1～A
qpotential variation curve, and send it in storer and store, after potential variation has been calculated, potential variation statistical module sends to current potential to adjust analog module potential variation curve, potential variation statistical module sends steering order to output unit chosen module, and output unit chosen module is selected each check point A
1～A
qwhen potential variation amount is maximum, the output unit of corresponding potentiostat is as the potentiostat that corresponding check point is had the greatest impact, and sends in 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 of detecting by sensor reach presetting potential, energising current potential reaches after presetting potential, and setup control module is sent steering order to 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 setup control module is sent, and data acquisition module controls that potential data that intelligent current potential Acquisition Instrument detects sensor sends to polarized potential computing module and current potential is adjusted analog module;
6) polarized potential computing module calculates check point A
1～A
qthe difference of the polarized potential while gathering polarized potential and energising current potential, according to this difference, polarized potential computing module calculates check point A
1～A
qthe polarized potential of check point while not carrying out polarized potential collection, polarized potential computing module is by check point A
1～A
qpolarized potential that measure and that calculate sends to actual potential comparison module;
7) actual potential comparison module is by 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 is all positioned at potential range up to standard, current potential is up to standard, actual potential comparison module sends steering order to setup control module, makes setup control module control each potentiostat operation according to former presetting potential; If there is the polarized potential of check point to be positioned at outside potential range up to standard, current potential is not up to standard, and actual potential comparison module sends 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 immediate current potential up to standard
1～V
n, gap computing module up to standard is by difference V
1～V
nsend to adjustment amount computing module, and to output unit chosen module, send data and extract instruction;
9) output unit chosen module is according to check point A not up to standard
1～A
nfrom storer, extract the potentiostat B that it is had the greatest impact
1～B
m, and it is sent to current potential adjustment analog module by gap computing module up to standard, adjustment amount computing module successively;
10) adjustment amount computing module receives difference V
1～V
n, according to check point A
1～A
ndifference V between current potential and immediate current potential up to standard
1～V
n, and alert to operation indicative control unit set initial adjustment amount factor alpha, after initial adjustment amount factor alpha has been set, adjustment amount computing module is by difference V
1～V
nmultiply each other with 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 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, calculates potentiostat 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 by current potential numerical value V
a1～V
aqsend to 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) analog electrical bits comparison module is by the polarized potential V of each check point calculating
a1～V
aqagain with potential range comparison up to standard, if the polarized potential of each check point is all positioned at potential range up to standard, current potential is up to standard, and adjustment completes, analog electrical bits comparison module is sent steering order to setup control module, makes setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point to be again positioned at outside potential range up to standard, current potential is not up to standard, and in storer, the counting of storage is over X time, adjustment completes, analog electrical bits comparison module is sent steering order to setup control module, makes setup control module according to the control of Electric potentials potentiostat operation after adjusting; If there is the polarized potential of check point to be again positioned at outside potential range up to standard, current potential is not up to standard, and the counting of storage in storer do not surpass X time, and analog electrical bits comparison module is sent and adjusted instruction again to adjusting module again, and by current potential V
a1～V
aqsend to adjusting module again 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 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 is increased and decreased adjustment amount factor alpha according to maximum phase rate again, adjusting module sends steering order to adjustment amount computing module again, again by step 10) start to carry out successively, until current potential all in up to standard or storer the counting of storage over 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, adjustment amount factor alpha is greater than 0, and 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 be greater than-1V of test adjustment amount y, and test adjustment amount y is less than 0V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518967.XA CN103014720B (en) | 2012-12-06 | 2012-12-06 | Large range long distance cathodic protection system and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518967.XA CN103014720B (en) | 2012-12-06 | 2012-12-06 | Large range long distance cathodic protection system and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103014720A CN103014720A (en) | 2013-04-03 |
| CN103014720B true CN103014720B (en) | 2014-11-05 |
Family
ID=47963825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210518967.XA Active CN103014720B (en) | 2012-12-06 | 2012-12-06 | Large range long distance cathodic protection system and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103014720B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104266086B (en) * | 2014-09-25 | 2017-12-05 | 中国海洋石油总公司 | A kind of data collecting system for submarine pipeline Potential distribution non-contact detection |
| CN105987283B (en) * | 2015-01-28 | 2019-06-21 | 上海远动科技有限公司 | Natural gas line cathodic protection remote monitoring device based on SCADA 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 |
| CN108070867B (en) * | 2016-11-08 | 2020-12-01 | 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 |
| CN110257831B (en) * | 2019-07-24 | 2021-04-06 | 青岛雅合科技发展有限公司 | Storage tank forced current cathode protection control 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 |
| CN111534823B (en) * | 2020-07-08 | 2020-10-27 | 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 |
Family Cites Families (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 |
| US5999107A (en) * | 1997-11-12 | 1999-12-07 | Institute Of Gas Technology | Remote cathodic protection monitoring system |
| US6625570B2 (en) * | 2000-06-20 | 2003-09-23 | Joseph J. Pierro, Jr. | Synchronous detection and remote monitoring and regulating of cell potential for cathodic protection |
| US6744265B2 (en) * | 2002-04-04 | 2004-06-01 | Cc Technologies Systems, Inc. | Automated cathodic protection monitor and control system |
| CN100535193C (en) * | 2006-03-29 | 2009-09-02 | 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 |
| CN102719828B (en) * | 2012-07-02 | 2014-01-15 | 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN103014720A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103014720B (en) | Large range long distance cathodic protection system and working method thereof | |
| CN103014721B (en) | Intelligent multi-channel potentiostat and operating method thereof | |
| CN103147082B (en) | Cathode protection device for controlling multiplexed output by utilizing polarization potential and operating method thereof | |
| CN105589051A (en) | Method and device for calibrating current and method for detecting current | |
| CN103901813A (en) | Material cutting power and energy consumption obtaining and energy-saving control method in variable cutting rate process | |
| CN108152597B (en) | Grounding electrode corrosion state diagnosis device and method based on relative grounding resistance | |
| CN102901856A (en) | Cable line arrester resistive current detection method based on phase search | |
| CN103954242B (en) | Overhead-power-transmission-line sag online monitoring method based on UWB ranging technology | |
| CN105335269A (en) | Temperature control method, temperature control device and mobile terminal | |
| SE1750044A1 (en) | Method and control unit for ground bearing capacity analysis | |
| CN111621792B (en) | Pipeline cathode protection output adjusting system and adjusting method | |
| CN102410824A (en) | Device and method for detecting thickness of steel plate | |
| CN104535622A (en) | Monitoring method for sudden water quality change | |
| CN104991191B (en) | The system and method for dynamic detection battery capacity of mobile terminal | |
| CN103116877B (en) | A kind of reservoir level process smoothing processing method | |
| CN106119856B (en) | A kind of Intelligent region cathodic protection monitoring system and its control method | |
| CN201047865Y (en) | Transformer station grounding network online monitoring device | |
| CN101209539A (en) | Method for improving grinding time control | |
| CN106353625B (en) | The voltage power-less regulating effect detection method and system of substation | |
| CN102706545A (en) | Automatic measuring device for characteristic parameters of irrigation sprinkler | |
| CN101261169A (en) | Crossbeam type oil pumping machine feed sensor calibration system and its calibration method | |
| CN113606500B (en) | Method for monitoring burst leakage of gas courtyard pipe network in real time | |
| CN201184835Y (en) | Calibration system for load sensor of crossbeam type oil pumping machine | |
| CN104597421A (en) | Reactive compensation automatic calibrating device | |
| CN105470999B (en) | A kind of microgrid power distribution method based on distributed finite-time control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhong Weibin Inventor after: Wang Hongjun Inventor after: Lu Shaotong Inventor after: Kong Desheng Inventor before: Wang Hongjun Inventor before: Lu Shaotong Inventor before: Kong Desheng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG HONGJUN LU SHAOTONG KONG DESHENG TO: ZHONG WEIBIN WANG HONGJUN LU SHAOTONG KONG DESHENG |