CN202401132U - Wind-photoelectric complementary network type anticorrosion system for ground buried steel pipeline - Google Patents

Abstract

The utility model discloses a wind-photoelectric complementary network type anticorrosion system for a ground buried steel pipeline. The wind-photoelectric complementary network type anticorrosion system comprises a singlechip module, wherein a data acquisition module, an outdoor monitoring module, a display module, an integral anticorrosion module, a wireless detection and short message module, a wind-photoelectric complementary power supply module and a button module are connected on the singlechip module. According to the system, the ground buried steel pipeline is detected by using a five-point plane detection method and is comprehensively protected through the integral anticorrosion module; and the wind-photoelectric complementary power supply module is used for solving the problem of inconvenient electricity use; clean energy is used; wiring expenses of municipal electric supply cables and the use of municipal electricity are reduced; the number of the line inspection personnel is reduced; the operation reliability of the pipeline is improved comprehensively; and compared with a cathode protection system of a traditional steel pipeline, the wind-photoelectric complementary network type anticorrosion system has the advantage that the service life of the pipeline is prolonged for 5-10 years. The wind-photoelectric complementary network type anticorrosion system is used in a ground buried gas pipeline of one section in Guiyang, the electric energy is saved significantly, and the wind-photoelectric complementary network type anticorrosion system is well accepted by gas enterprises. The wind-photoelectric complementary network type anticorrosion system is simple in structure, low in cost and good in use effect.

Description

The electric complementary networks formula preservative system of buried steel pipeline scene

Technical field

The utility model relates to a kind of pipe-line maintenance system, the electric complementary networks formula preservative system of especially a kind of buried steel pipeline scene.

Background technology

Built in China become to put into effect 6.2 ten thousand kilometers of long oil and gas pipelines, more than 3000 kilometer of submerged pipeline, transfering natural gas from the west to the east; Divert water from the south to the north project is also fully under way, and these pipeline major parts are steel pipes, are laid on underground; Crisscross with subway light rail, cable etc., quantity is many, circumstance complication.The main forms that causes the pipeline leakage failure is a corrosion failure, and pipeline will cause serious economy loss and loss of life and personal injury in case lose efficacy.The most of steel pipe of China is in the excessive risk phase of burying underground more than 15 years, is faced with the difficult problem of corrosion prevention.The tradition method of inhibiting corrosion mainly contains and smears the internal and external anti-corrosive coating, strengthens inspection, gets rid of stray current, galvanic anode protection, impressed current galvanic protection, anodic protection etc.The method of internal and external anti-corrosive coating is a lot, and for buried steel pipeline, corrosion protection coating suffers damage in the process of transportation and installation easily; Find that after deliberation at the corrosion protection coating breakage, pipeline is the positive column; Its erosion rate is more much bigger than other zone, and this method can only the part corrosion mitigation; The method of strengthening inspection is that company sends line walking group every day; Buried steel pipeline the zone of process carry out line walking; Whether investigation has or not the excavation situation and exceeds standard at detective pole and condenser cylinder place detector tube ground potential and ground potential gradient; Whether detect pipeline with the pipeline leak detector and leak etc., this method can not fundamentally solve the protection against corrosion problem of pipeline, and the manpower and materials of labor; Stray current is meant mobile electric current beyond design or regulation loop, and the pipeline stray current is meant extraneous non-regulation mobile electric current, through soil flowing into pipeline one side; Flow out from the pipeline opposite side then, electric current has negative electricity from the place that soil gets into metallic conduit, and inflow region is called the pipe cathode district; If pipe-to-soil potential is negative excessively in the cathodic area, than-when 1350mV was more negative, pipe surface can be separated out a large amount of hydrogen; Cause the anti-corrosion insulation damage layer and come off, thus the corrosion failure in aggravation cathodic area.When stray current is a bit flowed out by certain of pipeline, the pipeline positively charged, this zone is called the pipeline positive column; If pipe-to-soil potential excessively just in the positive column; During greater than-850mV, steel pipe dissolves in the surrounding medium with the form of iron ion, so the pipeline of positive column receives heavy corrosion ^[7]The measuring technology that stray current is commonly used at present comprises that coupon corrosion monitoring method, pipe-to-soil potential forward migration method, pipe-to-soil potential continuous monitoring method, stray current disturb probe method, ground potential gradient detection, SCM intelligence stray current mapper etc.; Traditional method is that " point " detects or " line " detects, and " face " detects at the early-stage.The method of getting rid of stray current has direct drainage method and drainage, makes pipeline metal structures aggravation corrosion failure on every side thereby these methods tend to produce new stray current, has caused anticaustic; Cathode protection method has galvanic anode protection, impressed current galvanic protection, anodic protection etc.; Traditional cathode protecting process detects with protection and separates; Do not have integration apparatus, protect not in placely, usually form overprotection or under proteciton; Meeting produces the metal structures around the new stray current corrosion and can not use in the urban district, and the waste electric energy is serious.Pipeline protection is the electricity consumption inconvenience in the mountain area, must solve to make things convenient for electrical problem.

Summary of the invention

The purpose of the utility model is: provide a kind of buried steel pipeline scene electric complementary networks formula preservative system, it can solve the inconvenient problem of pipeline protection electricity consumption, and, to overcome the deficiency of prior art.

The utility model is achieved in that the electric complementary networks formula preservative system of buried steel pipeline scene; Comprise one-chip computer module, on one-chip computer module, be connected with data acquisition module, open-air monitoring module; Display module; Integrated anticorrosion module, radio detection and SMS module, honourable electric complementary power supply module and key-press module.

On one-chip computer module, also be connected with clock module.

Described open-air monitoring module comprises camera and microwave type inductive probe.

The electric complementary power supply module of described scene comprises aerogenerator, solar storage battery and civilian power supply.

One-chip computer module: the MC9S12XS128MAA singlechip chip that one-chip computer module adopts Freescale company to provide; The encapsulation of 80 pin LQFP pasters; Its characteristics are for carrying 12 analog; Carry watchdog circuit, conduction type is ambipolar, working temperature is between-40 ℃ to 80 ℃, and can under the environment of humidity, work.One-chip computer module is the nucleus module of system, mainly coordinates and drive the work of each module.

Data acquisition module: main realization corrosion recognition data collection; Collecting method is 5 face detection methods; Main data of gathering have the anode and cathode that detects steel pipe, small stray current, detector tube ground potential and the ground potential gradient that detection pipeline upper reaches is crossed.The principle of work of data acquisition module is to adopt 5 detection methods of stray current, and its concrete grammar and structure are identical with disclosed paper " burying 5 detection system researchs of ground gas pipeline stray current ".

Open-air monitoring module: open-air monitoring module is by the MCU driving camera; Increase and join microwave induced probe; Can survey 20 square metres scope around the anticorrosion equipment, and through radio detection and SMS module dynamic note transmitted the upper computer computer of picture to company, its main purpose is around the monitoring field pipeline whether illegal excavation to be arranged, steal pipe, steal water and steal phenomenon generations such as gas; Reduce the line walking difficulty; Can realize night monitoring, fill up the difficult problem of buried steel pipeline inspection at night, improve the efficient of continuous monitoring.

Display module: display module is selected piezoelectric type touch LCD image display for use; The state value of main display data gatherer process and final processing value; And realize the touch action instruction of hommization, its demonstration task have anode and cathode, display pipes and the metal structures of display pipes current potential, the little electric current of pipeline mobile, typotron ground potential and ground potential gradient, show automatic current drainage status data, check pipe-to-soil potential-time curve, check ac potential-time curve, show the stray current direction, transmit wirelessly short message state, show help etc.Displaying contents can be set according to concrete needs.

Integrated anticorrosion module: integrated anticorrosion module mainly is made up of the anticorrosion circuit of MCU driving; For the corrosion situation detects and anticorrosion integrated hardware equipment; When the pipe-to-soil potential of data collecting module collected not at [1350mV;-850mV] interval, system judges automatically which kind of corrosion steel pipe belongs to, and starts the impressed current securing system.If pipeline receives stray current corrosion, then start the impressed current stray current drainage, if pipeline does not receive stray current corrosion, then start the galvanic protection of flexible anode impressed current.Integrated anticorrosion module connects different anticorrosion process equipment through connection jaws, is divided into the anticorrosion of dc stray current, alternative stray current anticorrosion; Impressed current galvanic protection anticorrosion, concrete mode of connection is selected existing mode of connection according to anticorrosion process, and the final drive flexible anode of anticorrosion module carries out anticorrosion; In the course of the work, the anode of power supply connects flexible anode, the negative terminal connecting tube of power supply; The size of electric current is calculated with adaptive algorithm through the pipe-to-soil potential that micro-chip detects.At any time let the pipe-to-soil potential of pipeline during its purpose in the scope [830 ,-1350] of safety millivolt, in safety range, system need not start the current drainage module, not the time just start.

Radio detection and SMS module: radio detection module and SMS module are selected the gsm wireless transceiver module for use, and wireless module has sending end and receiving end, and sending end is connected with micro-chip, and receiving end is connected with upper computer, and upper computer is designed with receiving software.Radio detection and SMS module are mainly realized realizing 10 meters range data detected states transmission, wirelessly carrying out that the preservative system parameter is provided with and transmit the anticorrosion state data with the form of note with notebook computer, and the transmission data are handled with corresponding upper computer software.The note transmission requires to realize to give in 24 hours the corporation monitoring main frame to send once, and the content of transmission is corrosive pipeline detection and rot-resistant status data, sends top plane No., malfunction advisory etc.

The electric complementary power supply module of scene: the energy-provision way of system is honourable electric complementary power supply (two kinds of mutual supplementary powers of power supply such as civilian 220V AC power, wind light mutual complementing power generation power supply); Power module carries out inversion through invertor; Boost-up circuit boosts and stores; Binary channel filtering, rectification and transformation finally reach the electricity consumption requirement of each unit module.The electric complementary supply module of scene has the power module unit, and effect is a control whole system operation state, and store battery is played the effect of additives for overcharge protection, over.The power module controller core is controlled to be micro-chip control, and through voltage of supply is detected, optimization power supply is a wind and light complementary power supply; In winter; Or the big pipeline section of electric power, during wind and light complementary power supply energy supply shortcoming, start civilian 220V AC power more automatically as replenishing.

Clock module: clock module is mainly realized timing of corrosion condition cycle detection and integrated anticorrosion timing.Can adopt conventional ClockCircuit.

Key-press module: key-press module can be provided with sense cycle as required and set button, system's start and stop button, drainage current button is set, manually current drainage and current drainage action button automatically etc.

Owing to adopted technique scheme; Compared with prior art, the utility model carries out all-round protection through integrated anticorrosion module to pipeline after adopting 5 face detection methods that buried steel pipeline is detected, and has utilized honourable electric complementary power supply module to solve the inconvenient problem of electricity consumption; Use clean energy; Reduce the laying expense of city's electrical cables and the use of minimizing civil power, reduce the track walker, comprehensively the operation safety of riser tubing; Compare with traditional steel pipeline cathode protection system, prolong pipeline 5-10 in work-ing life.The utility model has buried on the ground gas pipeline on probation in the Guiyang section, the saves energy effect is obvious, has received the favorable comment of gas enterprise.The utility model is simple in structure, and is with low cost, and result of use is good.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is the structural representation of the data acquisition module of the utility model;

Annotate: A/D representes the D/A switch module in the accompanying drawing 2, and YF representes operational amplifier, and J representes relay1 switch, and G representes buried steel pipeline.

Practical implementation

The embodiment of the utility model: the structure of the electric complementary networks formula preservative system of buried steel pipeline scene is as shown in Figure 1; Comprise one-chip computer module 1, on one-chip computer module 1, be connected with data acquisition module 2, open-air monitoring module 3; Display module 4; Integrated anticorrosion module 5, radio detection and SMS module 6, honourable electric complementary power supply module 9 and key-press module 7; On one-chip computer module 1, also be connected with clock module 8; Described open-air monitoring module 3 comprises camera and microwave type inductive probe; The electric complementary power supply module 5 of described scene comprises aerogenerator, solar storage battery and civilian electric module.

The utility model is worked usually in the open air; In order to improve security, all install lightning protection device in use additional, traction thunder and lightning when preventing to work in the open air; The electronic element apparatus of each module of the utility model is all packed into except open-air monitoring module 3 and honourable electric complementary power supply module 9 in the control casing; Open-air monitoring module 3 is installed in the casing outside with honourable electric complementary power supply module 9, and intermodule connects through circuit, and the control casing adopts electromagnetic shielding and waterproofing design; The utility model is designed with the upgrading mouth and program is write inlet; Connection jaws requires to use the standard wiring, makes things convenient for wiring; The utility model is provided with simple Design of ventilation, and controlling box body wall face has two small-sized fanses, works long hours for guaranteeing system, and a simple TP is set, when temperature starts fan during greater than 30 ℃.The design requirements modular design of each major parts of the utility model, 20 years lives, if corrupted is arranged, it is convenient to change.

For preventing artificial destruction; And make simple to operateization; The utility model is installed in the medium position of the high steel material support bar of about 7m; Must not be lower than 5m apart from ground, install on the support bar by coaxial multi-rotor aerogenerator, solar energy sailboard, camera and microwave induced probe, the power of aerogenerator and solar energy sailboard is chosen and will be confirmed according to wind condition, illumination condition and concrete anticorrosion electric current that ground is installed.Device also is provided with rain-proof equipment, and support bar requires wind condition to be designed to 10 grades.During the utility model operation, through aerogenerator and solar energy sailboard generating, through battery stores electricity energy; And connect auxiliary mains supply, and form the electric complementary energy supply module of scene, power supply is provided for each parts in the utility model; After the utility model starts; Automatically detect the corrosion situation of steel pipe, and start the software decision-making system, realize automatical and efficiently integrated steel pipe being carried out anti-corrosion protection.Radio detection and SMS transmission module 6 are given data transmission and are in the notebook computer in the 10m scope under the support bar; Carry out 24 hours/inferior real-time status data simultaneously and give company computer or anticorrosion competent authorities; The upper computer software of notebook computer can be provided with the state parameter of preservative system, and parameter is monitored and changed to every table apparatus in real time.

The length of preservative system design protection pipeline is the 1-2 kilometer, and every separated 1-2 kilometer is just installed one, can realize wireless free communication between per two preservative systems, and whole pipe network is formed an anticorrosion network.For the not serious pipeline section of corrosion, system plays one and detects and forecast, and when needs carried out corrosion prevention, system just started integrated anticorrosion module.

Claims (4)

1. the electric complementary networks formula preservative system of buried steel pipeline scene; Comprise one-chip computer module (1), it is characterized in that: on one-chip computer module (1), be connected with data acquisition module (2), open-air monitoring module (3); Display module (4); Integrated anticorrosion module (5), radio detection and SMS module (6), honourable electric complementary power supply module (9) and key-press module (7).

2. the electric complementary networks formula preservative system of buried steel pipeline scene according to claim 1 is characterized in that: on one-chip computer module (1), also be connected with clock module (8).

3. the electric complementary networks formula preservative system of buried steel pipeline scene according to claim 1, it is characterized in that: described open-air monitoring module (3) comprises camera and microwave type inductive probe.

4. the electric complementary networks formula preservative system of buried steel pipeline scene according to claim 1, it is characterized in that: the electric complementary power supply module of described scene (5) comprises aerogenerator, solar storage battery and civilian power supply.

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