CN106191873B - A kind of oil-gas pipeline cathodic protection intelligent detection device and its working method - Google Patents
A kind of oil-gas pipeline cathodic protection intelligent detection device and its working method Download PDFInfo
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- CN106191873B CN106191873B CN201610697286.2A CN201610697286A CN106191873B CN 106191873 B CN106191873 B CN 106191873B CN 201610697286 A CN201610697286 A CN 201610697286A CN 106191873 B CN106191873 B CN 106191873B
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Abstract
A kind of oil-gas pipeline cathodic protection intelligent detection device, including pile body are provided with cathodic protection potential Acquisition Instrument and the terminal plate coupled by Acquisition Instrument signal cable in the pile body；The cathodic protection potential Acquisition Instrument is connected by feeder with the intracorporal antenna of stake is located at；On the one hand the terminal plate passes through zero-bit cable and is connected with the pipeline being located at outside pile body, be on the other hand connected by test probe cable with the test probe being located at outside pile body.By oil-gas pipeline cathodic protection intelligent detection device, punctual acquisition pipeline cathode protecting parameter is realized, is not influenced by human factor and equipment, accuracy is high.It acquires that data are convenient, fast, automatic transmission, reduces human and material resources and financial resources, operating cost is low.
Description
Technical field
The present invention relates to oil-gas pipeline cathodic protection intelligent detection device and its working method, it is mainly used for being oil-gas pipeline
Cathodic protection intelligent measurement.
Background technique
Cathodic protection is to ensure the important means of oil-gas pipeline safety operation, and switch-off potential is to judge whether pipeline reaches
The important parameter of protection.Oil-gas pipeline cathode protection technology develops comparative maturity, in actual operation, protecting effect at present
Quality depend on correct maintenance to system.
Regular personal monitoring's mode is substantially used for the detection of oil gas pipe cathode protection parameter both at home and abroad at present,
Directly cathode protecting parameter is measured by digital multimeter.
When existing main problem：(1) mountain area wide, especially remote due to pipeline distributed areas, along the line geographical environment
Complexity brings very big difficulty to conventional artificial detection and pipeline management, causes a large amount of human and material resources and financial resources wave
Take；
(2) detection cycle is long, cannot obtain continuous data, and a data is taken to have contingency；
(3) test result is affected by human factor and test equipment equipment, and data accuracy is poor, leads to decision and pipe
The fault of reason causes bad hidden danger to the safe operation of pipeline.Especially under stray electrical current disturbed condition, existing detection means
The objective reality parameter that pipeline cannot continuously be obtained simultaneously, is unable to satisfy the requirement of corrosion control.
Accurately automatically detecting acquisition oil gas pipe cathode protection parameter in real time is to guarantee that cathodic protection system effect is maximum
Change, improves the key measure of oil-gas pipeline service life, therefore it is non-to establish oil gas pipe cathode protection parameter intelligent test device
It is often necessary.
Summary of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, devise a kind of oil-gas pipeline cathodic protection intelligent measurement dress
It sets and its working method.
The present invention is realized by following technical scheme：
A kind of oil-gas pipeline cathodic protection intelligent detection device, including pile body are provided with cathodic protection electricity in the pile body
Position Acquisition Instrument and the terminal plate coupled by Acquisition Instrument signal cable；The cathodic protection potential Acquisition Instrument passes through antenna feed
Line is connected with the intracorporal antenna of stake is located at；On the one hand the terminal plate passes through zero-bit cable and is connected with the pipeline being located at outside pile body,
On the other hand it is connected by test probe cable with the test probe being located at outside pile body.
Preferably, the cathodic protection potential Acquisition Instrument include microprocessor and respectively coupled GPRS module,
GPS module, power management module, internal clock unit, storage unit, sampling unit；The sampling unit again respectively with signal
Conditioning unit is connected with self calibration signal source.
Preferably, the cathodic protection potential Acquisition Instrument is arranged in the intracorporal equipment box of stake, the equipment box
It is aligned with pile body under shed, the pile body under shed is equipped with equipment chamber door.
Preferably, the antenna is arranged in the top in the intracorporal antenna tube of stake, the antenna tube lower end with set
Standby case connection, antenna tube upper end is at the top of pile body.
Preferably, the terminal plate is arranged in the intracorporal test box of stake, the test box and pile body upper opening
Alignment, the pile body upper opening are equipped with test chamber door.
Preferably, the test probe is polarized probe, reference electrode and the combination unit of test piece or reference electrode.
A kind of working method of oil-gas pipeline cathodic protection intelligent detection device, work step are as follows：
Step 1：Microprocessor internally issues suspend mode control instruction, cathode after the timing sampling time is arranged in clock unit
Protection potential Acquisition Instrument enters suspend mode, and internal clock unit continues timing；
Step 2：After microprocessor receives the wake-up control instruction that internal clock unit issues, microprocessor issues fortune
Row control instruction, cathodic protection potential Acquisition Instrument enter operating status；
Step 3：After microprocessor receives the GPS clock signal that GPS module issues, microprocessor internally clock unit
Control instruction when issuing school, internal clock unit proofread internal time；
Step 4：Microprocessor issues self calibration control instruction to sampling unit, and sampling unit acquires self calibration signal source
After the calibration signal V1 of offer, microprocessor is sent to；Microprocessor reads the standard letter that storage unit stores from storage unit
After number V0, microprocessor calculates correction factor X, correction factor X=1- (V1-V0)/V1, after the completion of correction factor calculates, micro- place
It manages device and issues potential acquisition control instruction to sampling unit；
Step 5：After sampling unit acquires the pipeline current potential P being passed to by signal conditioning unit, sends microprocessor to and count
Practical pipeline current potential P0, P0=P × X are calculated, after the completion of calculating, after P0 is sent to storage unit storage by microprocessor, micro process
Device will issue data to GPRS module and send instruction；
Step 6：GPRS module superior information system transmit data after, GPRS module to microprocessor issue transmission at
Function instruction.
Preferably, the calibration signal that self calibration signal source provides is an invariable voltage signal.
Preferably, the calibration that the voltage value of the standard signal V0 of storage unit storage and self calibration signal source provide is believed
Number voltage value is identical.
Beneficial effect of the present invention：
By oil-gas pipeline cathodic protection intelligent detection device, realize punctual acquisition pipeline cathode protecting parameter, not by
The influence of human factor and equipment, accuracy are high.It acquires that data are convenient, fast, automatic transmission, reduces human and material resources and wealth
Power, operating cost are low.
Detailed description of the invention
Fig. 1 is the system block diagram of oil-gas pipeline cathodic protection intelligent detection device；
Fig. 2 is the built-in system frame of the cathodic protection potential Acquisition Instrument in oil-gas pipeline cathodic protection intelligent detection device
Figure.
Specific embodiment
Below in conjunction with attached drawing, by specific embodiment, the present invention is further illustrated.
As shown in Figure 1 and Figure 2, a kind of oil-gas pipeline cathodic protection intelligent detection device, including pile body 1, the interior setting of pile body 1
There are cathodic protection potential Acquisition Instrument 10 and the terminal plate 11 coupled by Acquisition Instrument signal cable 5；Cathodic protection potential is adopted
Collection instrument 10 is connected by feeder 16 with the antenna 17 being located in pile body 1；11 one side of terminal plate by zero-bit cable 13 with
Pipeline 12 outside pile body 1 is connected, and on the other hand passes through test probe cable 15 and test 14 phases of probe outside pile body 1
Even.Cathodic protection potential Acquisition Instrument 10 is arranged in the equipment box 3 in pile body 1, and equipment box 3 is aligned with pile body under shed 4,
Pile body under shed 4 is equipped with equipment chamber door 6.Antenna 17 is arranged in the top in the antenna tube 2 in pile body 1, under antenna tube 2
End and 3 connection of equipment box, 2 upper end of antenna tube is close to 1 top of pile body.Terminal plate 11 is arranged in the test box 7 in pile body 1
Interior, test box 7 is aligned with pile body upper opening 8, and pile body upper opening 8 is equipped with test chamber door 9.
Test probe 14 is polarized probe, reference electrode and the combination unit of test piece or reference electrode.
Cathodic protection potential Acquisition Instrument 10 includes microprocessor and GPRS module coupled respectively, GPS module, power supply
Management module, internal clock unit, storage unit, sampling unit；Sampling unit again respectively with signal conditioning unit and self calibration
Signal source is connected.
Its working method of oil-gas pipeline cathodic protection intelligent detection device, steps are as follows：
1) internally the timing sampling time is arranged in clock unit to microprocessor, and after being provided with, microprocessor is to GPRS mould
Block, GPS module, power management module, internal clock unit, storage unit, sampling unit, self calibration signal source and signal condition
Unit issues suspend mode control instruction, and cathodic protection potential Acquisition Instrument enters suspend mode, and internal clock unit continues timing；
2) after the time reaches the timing sampling time in internal clock unit, internal clock unit is issued to microprocessor and is waken up
Control instruction；
3) microprocessor receive internal clock unit issue wake-up control instruction, after finishing receiving, microprocessor to
GPRS module, GPS module, power management module, internal clock unit, storage unit, sampling unit, self calibration signal source and letter
Number conditioning unit issues operation control instruction；
4) GPS module receives satellite clock signal, and after finishing receiving, GPS module issues GPS clock letter to microprocessor
Number；
5) microprocessor receives the GPS clock signal that GPS module issues, after finishing receiving, microprocessor internally clock
Control instruction when unit issues school；
6) control instruction when internal clock unit receives the school that microprocessor issues, after finishing receiving, internal clock unit
Proofread internal time；
7) microprocessor issues self calibration control instruction to sampling unit；
8) sampling unit receives the self calibration control instruction that microprocessor issues, and after finishing receiving, sampling unit acquisition is certainly
The calibration signal V1 that calibration signal source provides, after the completion of acquisition, sends microprocessor to；
9) microprocessor receives the calibration signal V1 for the sampling unit acquisition that sampling unit issues, after finishing receiving, micro- place
It manages device and reads the standard signal V0 that storage unit stores from storage unit, after the completion of reading, microprocessor calculates correction factor X,
Correction factor X=1- (V1-V0)/V1, after the completion of correction factor calculates, microprocessor issues potential acquisition control to sampling unit
Instruction；
10) sampling unit receives the potential acquisition control instruction that microprocessor issues, after finishing receiving, sampling unit acquisition
The pipeline current potential P being passed to by signal conditioning unit, after the completion of acquisition, sends microprocessor to；
11) microprocessor receives the pipeline current potential P for the sampling unit acquisition that sampling unit issues, and after finishing receiving, calculates
Practical pipeline current potential P0, P0=P × X, after the completion of calculating, P0 is sent to storage unit and stored by microprocessor, after completing storage,
Microprocessor will issue data to GPRS module and send instruction；
12) data that GPRS module receives that microprocessor issues send instruction, after finishing receiving, GPRS module superior letter
Breath system transmits data, and after data are transmitted, GPRS module issues transmission success instruction to microprocessor；
13) microprocessor receives the transmission success instruction that GPRS module issues, and after finishing receiving, microprocessor is to GPRS mould
Block, GPS module, power management module, internal clock unit, storage unit, sampling unit, self calibration signal source and signal condition
Unit issues suspend mode control instruction, and cathodic protection potential Acquisition Instrument enters suspend mode, and internal clock unit continues timing, again by step
It is rapid 2) to start successively to carry out.
The calibration signal that self calibration signal source provides is an invariable voltage signal.The standard of storage unit storage
The voltage value of signal V0 is identical as the calibration signal voltage value that self calibration signal source provides.
Claims (8)
1. a kind of oil-gas pipeline cathodic protection intelligent detection device, including pile body（1）, it is characterised in that：The pile body（1）Inside set
It is equipped with cathodic protection potential Acquisition Instrument（10）With pass through Acquisition Instrument signal cable（5）Coupled terminal plate（11）；
The cathodic protection potential Acquisition Instrument（10）Pass through feeder（16）Be located at pile body（1）Interior antenna（17）It is connected；
The terminal plate（11）On the one hand pass through zero-bit cable（13）Be located at pile body（1）Outer pipeline（12）It is connected, another party
Face passes through test probe cable（15）Be located at pile body（1）Outer test probe（14）It is connected；
The cathodic protection potential Acquisition Instrument（10）Including microprocessor and GPRS module coupled respectively, GPS module, electricity
Source control module, internal clock unit, storage unit, sampling unit；
The sampling unit is connected with signal conditioning unit and self calibration signal source respectively again.
2. a kind of oil-gas pipeline cathodic protection intelligent detection device according to claim 1, it is characterised in that：The cathode
Protection potential Acquisition Instrument（10）It is arranged in pile body（1）Interior equipment box（3）It is interior, the equipment box（3）With pile body under shed
（4）Alignment, the pile body under shed（4）Equipment chamber door is installed（6）.
3. a kind of oil-gas pipeline cathodic protection intelligent detection device according to claim 2, it is characterised in that：The antenna
（17）It is arranged in pile body（1）Interior antenna tube（2）Interior top, the antenna tube（2）Lower end and equipment box（3）Connection,
Antenna tube（2）Upper end is close to pile body（1）Top.
4. a kind of oil-gas pipeline cathodic protection intelligent detection device according to claim 1, it is characterised in that：The wiring
Plate（11）It is arranged in pile body（1）Interior test box（7）It is interior, the test box（7）With pile body upper opening（8）Alignment, it is described
Pile body upper opening（8）Test chamber door is installed（9）.
5. oil-gas pipeline cathodic protection intelligent detection device according to claim 1, it is characterised in that：The test probe
（14）For polarized probe, reference electrode and the combination unit of test piece or reference electrode.
6. a kind of working method of oil-gas pipeline cathodic protection intelligent detection device, which is characterized in that work step is as follows：
Step 1：Microprocessor internally issues suspend mode control instruction, cathodic protection after the timing sampling time is arranged in clock unit
Potential acquisition instrument enters suspend mode, and internal clock unit continues timing；
Step 2：After microprocessor receives the wake-up control instruction that internal clock unit issues, microprocessor issues operation control
System instruction, cathodic protection potential Acquisition Instrument enter operating status；
Step 3：After microprocessor receives the GPS clock signal that GPS module issues, internally clock unit issues microprocessor
Control instruction when school, internal clock unit proofread internal time；
Step 4：Microprocessor issues self calibration control instruction to sampling unit, and sampling unit acquires self calibration signal source and provides
Calibration signal V1 after, send microprocessor to；Microprocessor reads the standard signal V0 that storage unit stores from storage unit
Afterwards, microprocessor calculates correction factor X, correction factor X=1-（V1-V0）/ V1, correction factor calculate after the completion of, microprocessor to
Sampling unit issues potential acquisition control instruction；
Step 5：After sampling unit acquires the pipeline current potential P being passed to by signal conditioning unit, sends microprocessor to and calculate reality
Border pipeline current potential P0, P0=P × X, after the completion of calculating, P0 is sent to after storage unit stores by microprocessor, and microprocessor will be to
GPRS module issues data and sends instruction；
Step 6：After GPRS module superior information system transmits data, GPRS module issues transmission success to microprocessor and refers to
It enables.
7. the working method of oil-gas pipeline cathodic protection intelligent detection device according to claim 6, it is characterised in that：From
The calibration signal that calibration signal source provides is an invariable voltage signal.
8. the working method of oil-gas pipeline cathodic protection intelligent detection device according to claim 6, it is characterised in that：It deposits
The voltage value of the standard signal V0 of storage unit storage is identical as the calibration signal voltage value that self calibration signal source provides.
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| CN201610697286.2A CN106191873B (en) | 2016-08-19 | 2016-08-19 | A kind of oil-gas pipeline cathodic protection intelligent detection device and its working method |
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| CN106191873A CN106191873A (en) | 2016-12-07 |
| CN106191873B true CN106191873B (en) | 2018-11-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107291020A (en) * | 2017-08-14 | 2017-10-24 | 苏州骅奔物联网有限公司 | A kind of modularization Internet of Things signal picker |
| CN110263364B (en) * | 2019-05-05 | 2020-08-25 | 四川大学 | Oil and gas pipeline corrosion defect residual strength algorithm considering attenuation time-varying property |
| CN110030497A (en) * | 2019-05-16 | 2019-07-19 | 重庆市机电设计研究院 | A kind of cathodic protection on-line monitoring early warning system |
| CN110042399A (en) * | 2019-05-16 | 2019-07-23 | 重庆市机电设计研究院 | A kind of cathode protection device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985243A (en) * | 2014-05-30 | 2014-08-13 | 王辉 | Cathode protective potential monitoring system for buried metal pipeline |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985243A (en) * | 2014-05-30 | 2014-08-13 | 王辉 | Cathode protective potential monitoring system for buried metal pipeline |
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Address after: No. 22, Chaoyangmen North Street, Chaoyang District, Beijing 100728 Patentee after: China Petroleum Chemical Co Patentee after: Pipe network group (Xuzhou) pipeline inspection and Testing Co.,Ltd. Patentee after: State pipe network group east crude oil storage and Transportation Co.,Ltd. Address before: No. 22, Chaoyangmen North Street, Chaoyang District, Beijing 100728 Patentee before: China Petroleum Chemical Co Patentee before: SINOPEC LONG DISTANCE OIL AND GAS PIPELINES DETECTION Co.,Ltd. Patentee before: CHINA SINOPEC PIPELINE STORAGE AND TRANSPORTATION Co.,Ltd. |