CN209296544U - Underwater equipment corrosion potential data detection system - Google Patents
Underwater equipment corrosion potential data detection system Download PDFInfo
- Publication number
- CN209296544U CN209296544U CN201821975814.7U CN201821975814U CN209296544U CN 209296544 U CN209296544 U CN 209296544U CN 201821975814 U CN201821975814 U CN 201821975814U CN 209296544 U CN209296544 U CN 209296544U
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- underwater equipment
- detection system
- corrosion potential
- data detection
- electromotive force
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- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model relates to a kind of underwater equipment corrosion potential data detection systems, include: at least one reference electrode, it is fixed at the monitoring position for needing to carry out potential corrosion monitoring on the metal of underwater equipment outer surface, the underwater equipment outer surface metal at the reference electrode and monitoring position forms measurement battery；Pressure measuring instrument measures the electrode potential of the measurement battery by circuit connection with the underwater equipment outer surface metal at reference electrode and monitoring position respectively；Data control block receives the electromotive force of measurement battery, judges whether that there are differences between pre-set reference electromotive force, and export pre-warning signal to remote control center with pressure measuring instrument by circuit connection.The utility model in real time detects the corrosion potential data of underwater equipment, the timely early warning before potential corrosion influences underwater equipment functional completeness, avoids that safety accident occurs.
Description
Technical field
The utility model relates to the outer surfaces of a kind of data detection system, in particular to a kind of pair of underwater equipment to corrode
The system of potential data detection, belongs to the technical field of underwater equipment monitoring.
Background technique
It is well known that seawater is a kind of electrolyte solution.Various underwater equipments made of metal soak in the seawater for a long time
Bubble, easily formation corrosion potential, to cause corrosion and the underwater equipment structure function of the metal material of underwater equipment outer surface
The damage of energy.Wherein, the corrosion potential refers to, when not having impressed current, when metal reaches a stable etch state
The current potential measured.
The corrosion potential of underwater equipment is wet corrosion current potential, and principle is electrochemical reaction, i.e., forms one in metal surface
The corrosion potential battery of a anode region and cathodic region isolation, metal lose electronics in the seawater, become positively charged ion, this is
One oxidation process, that is, anodic process.At the same time in the metal surface of contact seawater, electronics has a large amount of chances by seawater
Cation neutralizes, and the process for neutralizing electronics is reduction process, i.e. cathodic process.
Underwater equipment realizes anticorrosion usually using spelter.Since corrosion potential is more readily formed than steel in spelter,
Current underwater equipment generallys use the cathode protection method of sacrificial anode, loads spelter by the surface of equipment under water to protect
Underwater equipment itself.
But due to the complex situations of ocean underwater environment, still lacks in this way and practical corrosion condition is carried out
Rapidly, direct monitoring means.That is, discovering in time not yet if spelter has been damaged by corrosion totally, under water
Equipment will face the danger for the damage that is corroded, and eventually lead to the generation of industrial accident.
Based on above-mentioned, the utility model proposes a kind of underwater equipment corrosion potential data detection systems, are able to achieve to underwater
The real-time detection of the corrosion potential data of equipment, the timely early warning before potential corrosion influences underwater equipment functional completeness,
To effectively solve disadvantage existing in the prior art and limitation.
Utility model content
The purpose of the utility model is to provide a kind of underwater equipment corrosion potential data detection systems, in real time to underwater equipment
Corrosion potential data detected, the timely early warning before potential corrosion influences underwater equipment functional completeness avoids sending out
Raw safety accident.
In order to achieve the above object, the utility model proposes a kind of underwater equipment corrosion potential data detection system, include:
At least one reference electrode is fixed at the monitoring position for needing to carry out potential corrosion monitoring on the metal of underwater equipment outer surface
Underwater equipment outer surface metal at place, the reference electrode and monitoring position forms measurement battery；Pressure measuring instrument, respectively with ginseng
Than the underwater equipment outer surface metal at electrode and monitoring position by circuit connection, the electrode electricity of the measurement battery is measured
Gesture；Data control block receives the electromotive force of measurement battery with pressure measuring instrument by circuit connection, judge whether in advance
There are differences between the reference electromotive force of setting, and export pre-warning signal to remote control center.
The reference electrode is mounted on the oil and gas pipeline, and/or electronic instrument, and/or control valve of underwater equipment
On the outer surface metal of door.
Underwater equipment corrosion potential data detection system described in the utility model also includes power-supply battery, surveys with voltage
Instrument connection is measured, provides reference electromotive force for reference electrode.
The data control block includes: data converter, with pressure measuring instrument by circuit connection, by voltage measurement
The measurement cell emf of instrument output is converted to analog output；Controller, respectively and in data converter and long-range control
The heart is by circuit connection, by the analog quantity of the measurement cell emf of data converter output and pre-set reference electromotive force
Analog quantity is compared, and judges whether difference between the two is equal to 0, such as otherwise exports pre-warning signal to remote control center.
The reference electromotive force of the reference electrode is converted to reference electromotive force analog quantity by data converter.
Underwater equipment corrosion potential data detection system described in the utility model also includes alarm, controls with data
The controller of module connects, and sounds an alarm when receiving pre-warning signal.
Underwater equipment corrosion potential data detection system described in the utility model also includes waterproof pressure shell, described
Data control block, pressure measuring instrument and power-supply battery be fixed at the inside of the waterproof pressure shell.
The waterproof pressure shell is made of anticorrosion material, and pressure-bearing range is in 1500Psi or more.
Between the pressure measuring instrument and reference electrode, connected using waterproof pressure conducting wire；The pressure measuring instrument
Between the underwater equipment outer surface metal at monitoring position, connected using waterproof pressure conducting wire.
It, can be in real time to setting under water in conclusion underwater equipment corrosion potential data detection system described in the utility model
Standby corrosion potential data are detected, the timely early warning before potential corrosion influences underwater equipment functional completeness, to keep away
Exempt from safety accident caused by occurring because of potential corrosion.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the underwater equipment corrosion potential data detection system in the utility model.
Specific embodiment
Below in conjunction with Fig. 1, by preferred embodiment to the technology contents of the utility model, construction feature, reached purpose
And effect is described in detail.
As shown in Figure 1, being underwater equipment corrosion potential data detection system provided by the utility model, include: at least one
A reference electrode 3 is fixed at the monitoring position for needing to carry out potential corrosion monitoring on the metal of underwater equipment outer surface, should
Underwater equipment outer surface metal at reference electrode 3 and monitoring position forms measurement battery；Pressure measuring instrument 2, respectively with reference
Underwater equipment outer surface metal at electrode 3 and monitoring position measures the electrode potential of the measurement battery by circuit connection；
Data control block 1 receives the electromotive force of measurement battery, judges whether and set in advance with pressure measuring instrument 2 by circuit connection
There are differences between the reference electromotive force set, and export pre-warning signal to remote control center.
In the preferred embodiment of the utility model, for underwater equipment, some important and perishable position is
Necessary real-time perfoming potential corrosion monitoring, specifically include oil transportation or gas pipeline, electronic instrument and control valve etc..Also
It is to say, the reference electrode 3 in the utility model is optionally separately mounted to oil transportation or the gas pipeline, electronics of underwater equipment
On instrument and the outer surface metal of control valve, multiple monitoring positions are formed, while monitoring the potential corrosion at these positions
Situation.
Underwater equipment corrosion potential data detection system described in the utility model also includes power-supply battery 7, surveys with voltage
It measures instrument 2 to connect, provides stable 220V reference electromotive force for reference electrode 3, service life is generally at 10 years or more.
The data control block 1 includes: data converter, and with pressure measuring instrument 2 by circuit connection, voltage is surveyed
The electromotive force that amount instrument 2 measures obtained measurement battery is converted to 4~20mA analog output；Controller, respectively with data conversion
Device and remote control center are by circuit connection, by 4~20mA mould of the electromotive force of the measurement battery of data converter output
Analog quantity is compared with pre-set reference electromotive force analog quantity, judges whether difference between the two is equal to 0, such as otherwise defeated
Pre-warning signal is to remote control center out.
Wherein, after the 220V reference electromotive force of reference electrode 3 being converted to 4~20mA analog quantity by data converter,
Obtain reference electromotive force analog quantity.
In the preferred embodiment of the utility model, the controller is realized using RAW NAND control chip, tool
There is the RAM module for loading control program, the operation program that data processing is carried out to 4~20mA analog quantity, and tool can be provided
There is the ROM module of storing data, can store and record 4~20mA analog quantity of data converter output, and storage is in advance
The reference electromotive force analog quantity of setting.
Underwater equipment corrosion potential data detection system described in the utility model also includes alarm 6, controls with data
The controller of module 1 connects, and when receiving pre-warning signal, sounds an alarm to other underwater equipments around.
Further, underwater equipment corrosion potential data detection system described in the utility model, also comprising outside waterproof pressure
Shell 4, the data control block 1, pressure measuring instrument 2 and power-supply battery 7 are fixed at the interior of the waterproof pressure shell 4
Portion.
The waterproof pressure shell 4 is made of anticorrosion material, and pressure-bearing range is at 1500Psi (ft lbf/square inch)
More than, favorable sealing property.
In the preferred embodiment of the utility model, the waterproof pressure shell 4 is according to the internal electronic component installed
Size be formed into cylindrical shape, diameter 200mm, length 500mm, and be provided on its inner wall for fix electronics member
The groove of part and electronic circuit.
Between the pressure measuring instrument 2 and reference electrode 3, connected using waterproof pressure conducting wire；The voltage measurement
Between underwater equipment outer surface metal at instrument 2 and monitoring position, (not shown) is also connected using waterproof pressure conducting wire, with true
Protect the circuit safety and reliability of whole system.
The reference electrode is when measuring various electrode electromotive force as referring to the electrode compared.By tested fixed electrode
Reference cell is constituted with the reference electrode of accurately known electrode electromotive force numerical value, by measuring the electromotive force of reference cell, thus
The electromotive force of tested fixed electrode can be calculated.
Therefore in the present invention, being tested fixed electrode is the underwater equipment outer surface metal monitored at position, with
Reference electrode 3 formed reference cell, by pressure measuring instrument 2 measure reference cell electromotive force, and due to reference electrode 3 by
Power-supply battery 7 provides precise and stable electromotive force for it, is calculated by the difference of the two, can obtain (the monitoring of tested fixed electrode
Underwater equipment outer surface metal at position) electromotive force.And once find that the electromotive force of the underwater equipment outer surface metal is
When non-zero, then illustrate that there are corrosion potentials at the monitoring position, realize processing in time by timely early warning, it otherwise will be to underwater
Equipment causes further to damage and influence.
It, can be in real time to setting under water in conclusion underwater equipment corrosion potential data detection system described in the utility model
Standby corrosion potential data are detected, the timely early warning before potential corrosion influences underwater equipment functional completeness, to keep away
Exempt from safety accident caused by occurring because of potential corrosion.
It is discussed in detail although the content of the utility model has passed through above preferred embodiment, but it should be appreciated that on
The description stated is not considered as limitations of the present invention.After those skilled in the art have read above content, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the protection scope of the utility model should be by appended
Claim limit.
Claims (9)
1. a kind of underwater equipment corrosion potential data detection system, characterized by comprising:
At least one reference electrode is fixed at the monitoring for needing to carry out potential corrosion monitoring on the metal of underwater equipment outer surface
At position, the underwater equipment outer surface metal at the reference electrode and monitoring position forms measurement battery；
Pressure measuring instrument passes through circuit connection with the underwater equipment outer surface metal at reference electrode and monitoring position respectively,
Measure the electrode potential of the measurement battery；
Data control block receives the electromotive force of measurement battery with pressure measuring instrument by circuit connection, judge whether in advance
There are differences between the reference electromotive force of setting, and export pre-warning signal to remote control center.
2. underwater equipment corrosion potential data detection system as described in claim 1, which is characterized in that the reference electrode
It is mounted on the oil and gas pipeline, and/or electronic instrument, and/or the outer surface metal of control valve of underwater equipment.
3. underwater equipment corrosion potential data detection system as described in claim 1, which is characterized in that also comprising power supply electricity
Pond is connect with pressure measuring instrument, provides reference electromotive force for reference electrode.
4. underwater equipment corrosion potential data detection system as claimed in claim 3, which is characterized in that the data control
Module includes:
Data converter converts the measurement cell emf of pressure measuring instrument output with pressure measuring instrument by circuit connection
For analog output；
Controller, respectively with data converter and remote control center by circuit connection, the survey that data converter is exported
The analog quantity of amount cell emf is compared with pre-set reference electromotive force analog quantity, judges that difference between the two is
It is no to be equal to 0, pre-warning signal is such as otherwise exported to remote control center.
5. underwater equipment corrosion potential data detection system as claimed in claim 4, which is characterized in that by the reference electricity
The reference electromotive force of pole is converted to reference electromotive force analog quantity by data converter.
6. underwater equipment corrosion potential data detection system as claimed in claim 4, which is characterized in that it also include alarm,
It connect with the controller of data control block, is sounded an alarm when receiving pre-warning signal.
7. underwater equipment corrosion potential data detection system as claimed in claim 3, which is characterized in that also include waterproof pressure
Shell, the data control block, pressure measuring instrument and power-supply battery are fixed at the inside of the waterproof pressure shell.
8. underwater equipment corrosion potential data detection system as claimed in claim 7, which is characterized in that the waterproof pressure
Shell is made of anticorrosion material, and pressure-bearing range is in 1500Psi or more.
9. underwater equipment corrosion potential data detection system as described in claim 1, which is characterized in that the voltage measurement
Between instrument and reference electrode, connected using waterproof pressure conducting wire；Underwater equipment at the pressure measuring instrument and monitoring position
Between the metal of outer surface, connected using waterproof pressure conducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821975814.7U CN209296544U (en) | 2018-11-28 | 2018-11-28 | Underwater equipment corrosion potential data detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821975814.7U CN209296544U (en) | 2018-11-28 | 2018-11-28 | Underwater equipment corrosion potential data detection system |
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| Publication Number | Publication Date |
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| CN209296544U true CN209296544U (en) | 2019-08-23 |
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| CN201821975814.7U Active CN209296544U (en) | 2018-11-28 | 2018-11-28 | Underwater equipment corrosion potential data detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269975A (en) * | 2018-11-28 | 2019-01-25 | 美钻深海能源科技研发（上海）有限公司 | Underwater equipment corrosion potential data detection system |
-
2018
- 2018-11-28 CN CN201821975814.7U patent/CN209296544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269975A (en) * | 2018-11-28 | 2019-01-25 | 美钻深海能源科技研发（上海）有限公司 | Underwater equipment corrosion potential data detection system |
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