CN201125267Y - Intelligent frequency conversion constant electric potential instrument - Google Patents
Intelligent frequency conversion constant electric potential instrument Download PDFInfo
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- CN201125267Y CN201125267Y CNU2007200291106U CN200720029110U CN201125267Y CN 201125267 Y CN201125267 Y CN 201125267Y CN U2007200291106 U CNU2007200291106 U CN U2007200291106U CN 200720029110 U CN200720029110 U CN 200720029110U CN 201125267 Y CN201125267 Y CN 201125267Y
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Abstract
The utility model relates to a pipe corrosion prevention device, especially an intelligent frequency conversion potentiostat of oil and water well casing adding current cathode protection. A technical scheme is that: the intelligent frequency conversion potentiostat is main composed of an industry controller and a plurality of high-frequency DC power, wherein, the industry controller is used for control output value magnitude of a plurality of high-frequency DC power; MCS-51 micro-controller is used as core by the industry controller for constituting micro-controller control and management integration system, so that can complete detecting, displaying, printing, malfunction alarm for whole corrosion prevention device working parameter, and processes automatic control to main loop signal. The intelligent frequency conversion potentiostat has advantages in that: output voltage is wide, and has input over voltage, over current, over low voltage protection; output short circuit, over current, over voltage protection; has small volume, light weight and high efficiency.
Description
One, technical field:
The utility model relates to a kind of pipeline corrosion protection device, particularly relates to a kind of intelligent frequency-conversion potentiostat of Casing Failure impressed current cathodic protection.
Two, background technology:
Galvanic protection is widely adopted in anticorrosive metal work, and according to the practice at home and abroad empirical evidence, the protection effect is significant.Therefore, can slow down metallic corrosion by adopting said method at metal structures such as underground communication cable, petroleum pipe line, natural gas line, boats and ships, harbour, gate, chemical industry equipments.The principle that the cathodic polarization state is realized on the surface that galvanic protection makes protected metallic substance contact with surrounding medium realizes etch-proof purpose.When using cathode protection method; must guarantee that the metal above earth potential is controlled in the specified scope of protection potential; for this reason must can be according to given protection potential standard; automatically adjust the output rating of anti-corrosion meter; make the above earth potential of drainage point above earth potential or protection section marginal point constant on a certain numerical value, thereby the full section of protected metallic conduit all is within the protection potential numerical value.
Three, summary of the invention:
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, provides a kind of volume little, in light weight, the intelligent frequency-conversion potentiostat that efficient is high.
Its technical scheme is: mainly be made up of industrial control unit (ICU) and a plurality of high-frequency DCs source, wherein, industrial control unit (ICU) is used to control the size of the output valve in a plurality of high-frequency DCs source; Industrial control unit (ICU) is a core with the MCS-51 micro-chip mainly, constitutes scm observe and control management integration system, finishes the detection of whole anti-corrosion meter working parameter, demonstration, printing, fault alarm with this, and the master loop signal is controlled automatically;
Described industrial control unit (ICU) mainly is made up of micro-chip, multi-channel a/d converter, RS-485 serial ports, D/A converter, manual switch, alternating current contactor, display panel and keyboard, the master loop signal has operating voltage U, working current A, reference potential C and given voltage D, be converted to the 4-20mA normalized current through multi-channel a/d converter, this electric current becomes the digital quantity that enters after dual integration A/D changes after the 0.4-2V voltage through sample resistance and enters micro-chip, send display panel behind the micro-chip item for disposal.
More detailed is that described manual switch is by connecting the usefulness that outside manual operation switch and external control switch carry out the observing and controlling management and supply to detect the control of management;
Alternating current contactor is used for the signal detection of master loop, and when detect parameters was out-of-limit, industrial control unit (ICU) can go out sound and light alarm, cut off main circuit current, its provide protection automatically.
Described keyboard is provided with six touch key-press, promptly select, be shifted, increase one, print, fix a point/patrol apparent, the key that puts into operation is when pressing options button continuously and can show, minute, second, year, month, day, working current, operating voltage, given current potential, reference potential, timed print time pitch time, work integration time; Displacement and increase a bond and close and to realize that clock and time-write interval are at interval; But printing key OnNow mini-printer; Fix a point/patrol to show key and can finish fixed point and the touring switching that shows; After UH, AH reported to the police, the main frame outage after fault is got rid of, was pressed the key main frame that puts into operation and can be restarted.
Described RS-485 serial ports connects upper computer.
The beneficial effects of the utility model are: output voltage is wide, has input overvoltage, overcurrent, under-voltage protection; Output short-circuit, overcurrent, overvoltage protection; Volume is little, and is in light weight, the efficient height.
Four, description of drawings:
Accompanying drawing 1 is the structural representation of industrial control unit (ICU) of the present utility model;
Accompanying drawing 2 is synoptic diagram of industrial control unit (ICU) and panel.
Five, embodiment:
In conjunction with the accompanying drawings 1, the utility model will be further described:
Industrial control unit (ICU) is a core with the MCS-51 micro-chip, be equipped with auxiliary circuit and constitute the system of micro-chip a plurality of high-frequency DCs source observing and controlling management integration, finish the detection of whole anti-corrosion meter working parameter, demonstration, printing, fault alarm with this, and the master loop signal is controlled automatically.
The analog quantity input has: master loop operating voltage U, working current A, reference potential C, given voltage D; This loop signal is converted to the 4-20mA normalized current through multi-channel a/d converter, this electric current is managed 100 Ω sample resistances and is become the digital quantity that enters after the 0.4-2V voltage after the dual integration A/D conversion and enter micro-chip, after micro-chip is handled, send display panel, can shield for LCD.
It is six touch key-press that native system is provided with keyboard altogether, promptly selects, is shifted, increases one, print, fix a point/patrol apparently, and key puts into operation.When pressing options button continuously and can show, minute, second, year, month, day, working current, operating voltage, given current potential, reference potential, timed print time pitch time, work integration time; Displacement and increase a bond and close and to realize that clock and time-write interval are at interval; But printing key OnNow mini-printer; Fix a point/patrol to show key and can finish fixed point and the touring switching that shows.After UH, AH reported to the police, the main frame outage after fault is got rid of, was pressed the key main frame that puts into operation and can be restarted.
Manual switch is used for microsystem observing and controlling management and supplies to detect the usefulness of the control of management.The alternating current contactor of master loop is used for the signal detection of master loop, shields.When detect parameters was out-of-limit, microsystem provided outside the sound and light alarm, still can cut off main circuit current automatically, and fault is pressed the key that puts into operation after getting rid of, and main frame restarts.
Mini-printer is finished under the control of micro-chip: timed print, instant printing, fault are printed, are powered on and print four kinds of actions.Also have month, year form to print.Native system can send upper computer by serial mode with running status, as upper control machines such as computers.
With reference to accompanying drawing 2, the industrial control unit (ICU) system is connected:
By Fig. 2 mode system is coupled together, will debug/run switch set, check and connect power supply when wiring is errorless.
Connect the power supply printer printer that powers on immediately, when indicating meter provides, minute, second shows.
Whenever press options button one time, provide year, month, day, A=**.*, U=**.*, d=**.*, C=**.*, d-C***.*, P=*, t=***** successively.
Press and fix a point/patrol apparent, indicating meter follows back and provides A, U, D, C, D-C numerical value.
Hour Minute Second time-write interval date P all can and increase a key by displacement and revise.
Press printing key, printer is finished once and is printed immediately.
When A 〉=68A (60A shelves) U 〉=35V or A 〉=34A (30A shelves) U 〉=70V, red P cock 1 is got to ON in the computer motherboard, 34A70V gets to another kind of state 68A/35V, warning light is bright, and hummer is, control alternating current contactor action, automatically cut off main circuit current, the microcomputer works better, and start printer automatically, give the printing of being out of order.When D-C 〉=100mV, DH 〉=2V, CH 〉=2V time-delay 30S left and right sides D-C shows flicker, warning light is bright, hummer, but do not cut off main circuit power.
Between trial run period, working time, cumulative time was not counted in the cumulative time of normal operation.
" hand/automatically " when switch is put " manually ", microsystem except that control fails, all the other functions as before.
The debugging and try out errorless after, " test/operation " (it is running status that the interior red P cock 2 of computer motherboard is got to ON) switch is put " RUN " and pressed " putting into operation ", then system formally puts into operation, and normal operation period counted among the cumulative time T again, if hinder for some reason or have a power failure the master loop outage appears during this time, comprise the microcomputer outage, then charge to microcomputer as accumulation fault-time, and form permanent record, the automatic printing in back that power on has a power failure and power-on time, and this time is not charged to as the fault cumulative time.
In addition, the item that should be noted that is as follows:
Regulate constant current value: regulate movement power panel upper flow potentiometer to required constant current value (noting: when having only outward current to enter constant current, regulate and just work).The current limiting system of instrument no matter work when still " automatically " works by " manually ", and system all works; Stop alert switch and only stop siren, do not stop warning lamp.
For the metallic conduit in the protection soil, reference electrode should be embedded in below the frozen soil line, keeps the moistening of soil, and whether running check Cu/CuSO4 electrode is dry, and often adds copper-bath.
When measuring the reference electrode current potential, should adopt the higher voltmeter of digital voltmeter or internal resistance to measure.
Radiator fan is a Temperature Control Type, and when built-in temperature surpasses running up during temperature control point of fan, the machine internal fan is just opened, and the rotating speed of fan is with the different faster or slower of output voltage, electric current, and this belongs to normal phenomenon.Too high when temperature, when reaching the shutoff temperature threshold values, machine will quit work automatically and can not damage; When temperature descends, then resume work automatically.
Claims (4)
1. an intelligent frequency-conversion potentiostat mainly is made up of industrial control unit (ICU) and a plurality of high-frequency DCs source, it is characterized in that: described industrial control unit (ICU) is used to control the size of the output valve in a plurality of high-frequency DCs source; Industrial control unit (ICU) mainly is core with the micro-chip, constitutes scm observe and control management integration system, finishes the detection of whole anti-corrosion meter working parameter, demonstration, printing, fault alarm with this, and the master loop signal is controlled automatically;
Described industrial control unit (ICU) mainly is made up of MCS-51 micro-chip, multi-channel a/d converter, RS-485 serial ports, D/A converter, manual switch, alternating current contactor, display panel and keyboard, main recessed road signal has operating voltage U, working current A, reference potential C and given voltage D, be converted to normalized current through multi-channel a/d converter, this electric current becomes the digital quantity that enters after dual integration A/D changes after the 0.4-2V voltage through sample resistance and enters micro-chip, send display panel after micro-chip is handled.
2. intelligent frequency-conversion potentiostat according to claim 1 is characterized in that: described manual switch is by connecting the usefulness that outside manual operation switch and external control switch carry out the observing and controlling management and supply to detect the control of management.
3. intelligent frequency-conversion potentiostat according to claim 1 and 2 is characterized in that: described keyboard is provided with six touch key-press, promptly selects, is shifted, increases one, print, fix a point/patrol apparently, and key puts into operation.
4. intelligent frequency-conversion potentiostat according to claim 1 is characterized in that: described RS-485 serial ports connects upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200291106U CN201125267Y (en) | 2007-10-09 | 2007-10-09 | Intelligent frequency conversion constant electric potential instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200291106U CN201125267Y (en) | 2007-10-09 | 2007-10-09 | Intelligent frequency conversion constant electric potential instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201125267Y true CN201125267Y (en) | 2008-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200291106U Expired - Fee Related CN201125267Y (en) | 2007-10-09 | 2007-10-09 | Intelligent frequency conversion constant electric potential instrument |
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| CN (1) | CN201125267Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170223A (en) * | 2010-12-17 | 2011-08-31 | 中国石油集团长城钻探工程有限公司 | Direct current power supply of imaging logging system |
| CN103178485A (en) * | 2013-02-27 | 2013-06-26 | 湘潭市电机车厂有限公司 | Intelligent digital controller for mine rectifier cabinet |
| CN105603438A (en) * | 2016-03-21 | 2016-05-25 | 天津隆顺技术服务有限公司 | Regional cathodic protection system |
| CN105891313A (en) * | 2016-04-12 | 2016-08-24 | 杭州电子科技大学 | Portable potentiostat application platform based on vitamin B detection |
| CN109321923A (en) * | 2018-11-08 | 2019-02-12 | 西安石油大学 | A kind of buried long distance pipeline cathode protection device based on STM32 single-chip microcontroller |
| CN114737191A (en) * | 2022-03-23 | 2022-07-12 | 中国船舶重工集团公司第七二五研究所 | Distributed impressed current cathodic protection system for ship |
-
2007
- 2007-10-09 CN CNU2007200291106U patent/CN201125267Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170223A (en) * | 2010-12-17 | 2011-08-31 | 中国石油集团长城钻探工程有限公司 | Direct current power supply of imaging logging system |
| CN102170223B (en) * | 2010-12-17 | 2014-04-02 | 中国石油集团长城钻探工程有限公司 | Direct current power supply of imaging logging system |
| CN103178485A (en) * | 2013-02-27 | 2013-06-26 | 湘潭市电机车厂有限公司 | Intelligent digital controller for mine rectifier cabinet |
| CN105603438A (en) * | 2016-03-21 | 2016-05-25 | 天津隆顺技术服务有限公司 | Regional cathodic protection system |
| CN105603438B (en) * | 2016-03-21 | 2018-06-26 | 天津隆顺技术服务有限公司 | Region cathodic protection monitoring regulator control system |
| CN105891313A (en) * | 2016-04-12 | 2016-08-24 | 杭州电子科技大学 | Portable potentiostat application platform based on vitamin B detection |
| CN109321923A (en) * | 2018-11-08 | 2019-02-12 | 西安石油大学 | A kind of buried long distance pipeline cathode protection device based on STM32 single-chip microcontroller |
| CN114737191A (en) * | 2022-03-23 | 2022-07-12 | 中国船舶重工集团公司第七二五研究所 | Distributed impressed current cathodic protection system for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20101009 |