CN201475653U

CN201475653U - A remote monitoring device combining anti-theft prewarning and cathodic protection for pipeline

Info

Publication number: CN201475653U
Application number: CN2009201460806U
Authority: CN
Inventors: 洪雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-26
Filing date: 2009-03-26
Publication date: 2010-05-19
Anticipated expiration: 2019-03-26

Abstract

A remote monitoring device combining anti-theft prewarning and cathodic protection for an oil and gas transportation pipeline comprises a pipeline test pole, a cathodic protection test probe, a potential sensor, a vibration sensor, an oil theft alarming horn, a microprocessor chip, a GPRS transmission chip, etc. The system is characterized in that the electronic devices are combined into a data acquisition and monitoring circuit board mounted at the inner part of the pipeline test pole; on the site, the vibration sensor mounted on the pipeline monitors a perforation oil theft signal on the pipeline in the real time, gives an on-site voice alarm, and meanwhile transmits the oil theft information to a prewarning main-control platform via GPRS; the test probe is connected with the pipeline and the potential sensor; and the potential sensor regularly detects the data of the cathodic power-on guard potential of the pipeline and the switch-off potential of the test probe and sends the data via the GPRS communication mode. The device simultaneously combines the oil theft prevention and the cathodic protection data acquisition into a whole, and accordingly monitors other pipeline parameters, thereby providing an approach for digitized pipeline management, and saving both the manpower and the input cost.

Description

Anti-early warning, the cathodic protection associating remote monitoring device stolen of pipeline

Technical field

The utility model is to be used for remote monitoring of buried pipeline cathodic protection potential and the anti-drilling hole of oil stolen early warning system of pipeline, relates to the electrochemical cathodic protection operation management of oil and gas pipeline and the anti-theft security management of pipeline, is a kind of advanced person's comprehensive remote monitoring device.

Technical background

Oil, natural gas energy resource are the blood of the national economic development, and oil and gas pipeline is the main artery of the national economic development, and domestic in the last few years pipe-line construction increases sharply day by day, and the daily operation management work of pipeline is heavy day by day.Cathode protection technology is the technology that the pipeline corrosion protection field is mature on the whole, the artificial collection used in the collection of previous pipeline cathode protection parameter, inefficiency, labor intensity are big, precision is subjected to man's activity serious, especially long distance pipeline because pipeline distributed areas geographical environment wide, along the line is complicated and changeable, causes the bigger difficulty of manual detection, so the staff is often taken place not to go to gather, compile data sheet etc., data really and accurately can't be provided, ensure the normal operation of pipeline cathode protection; Simultaneously, the pipeline theft management is to have the patrolman to carry out line walking previously always, this mode does not almost have effect for the stolen lawless person, occur to adopt the leak hunting alarm system of mode of pressure afterwards, be to report to the police by the variation of pipeline pressure after the generation stolen, belong to afterwards and report to the police, can not avoid the generation of economic loss; In recent years; some have also appearred about carry out the report of pipeline anti-theft early-warning by the mode of monitoring pipe road sound, oscillating signal; the cathode protecting parameter long distance wireless detects and has also obtained very fast development at these several years simultaneously; these two kinds of detection systems have a lot of point of intersection; but be not utilized effectively, as all being about 1000 meters, to lay the monitoring point, can adopt GPRS wireless transmission etc.

Summary of the invention

The anti-pilferage of the utility model oil and gas pipeline early warning, cathodic protection associating remote monitoring device have changed original artificial on-the-spot cathodic protection, the anti-theft oil management mode that detects cathodic protection potential, artificial line walking inspection; can finish simultaneously the tasks such as collection, processing, transmission of stolen signal, cathodic protection potential signal by this device; cathodic protection remote supervision system and anti-theft oil early warning system are combined, saved construction investment and operating cost.

The utility model comprises several parts compositions such as pipeline test pile, cathode protection testing probe, potentiometric sensor, vibration transducer, stolen alarming horn, microprocessor chip, GPRS transmission chip; These system core characteristics are for detecting cathodic protection potential and the anti-theft oil acoustic signals is monitored and focused on same pipeline test pile and finish, pipeline drilling hole of oil stolen signal can be monitored constantly by vibration transducer in the scene, and send on-the-spot sound alarm, simultaneously stolen information is sent to early warning master control platform by GPRS, the processing of reporting to the police; Another function detects pipeline cathodic protection potential data for timing, and sends the data to server by the GPRS communication modes, by the cathodic protection data processing system data is handled, is analyzed.This system data is gathered, transmits, is handled and all realizes measurement, wireless transmission automatically, simultaneously anti-theft oil and cathodic protection data capture is united two into one.

Of the present utility modelly be characterised in that described circuit theory diagrams are by the cathodic protection potential signal input part, stolen oscillating signal input end, microprocessor CPU, storage, time module, the GPRS communication module, battery supply, compositions such as voice guard, wherein the cathodic protection potential signal input part is by test probe, the timing power-down circuit, potentiometric sensor, current potential A/D change-over circuit constitutes, stolen oscillating signal input end can directly be selected two of digital vibration transducers for use, the knocking of a monitoring low frequency high amplitude, the boring signal of another monitoring high frequency low-amplitude; Each control circuit and element link to each other by preface successively, as shown in Figure 1 and Figure 2.

Aforesaid cathodic protection potential signals collecting is finished by the test probe, microprocessor CPU, timing power-down circuit, the potentiometric sensor that are made of reference electrode and measurement test piece, the monitoring test piece is connected by circuit with pipeline in the cathode protection testing probe, and circuit is in normally open; Regularly measure cathodic protection energising current potential and storage by CPU, after finishing, CPU starts regularly power-down circuit, and disconnect measuring being electrically connected between test piece and the pipeline in the test probe, and measure the measurement of potential difference between test piece and the reference electrode immediately, and storage.

Aforesaid anti-theft oil acoustic vibration signal is gathered, it is characterized in that when stolen takes place, the oil stealer touches the Analysis of Pipe Vibrations signal can be installed in the timely perception of vibration sensor on the pipeline in the contiguous pipeline test pile, handle by microprocessor CPU, be confirmed to be reporting to the police behind the stolen signals such as knocking of implementing of pipeline, boring; One tunnel alarm signal is sent to the master control platform by GPRS, reports particular location and warning pile No. that stolen takes place; Another road alarm signal is carried out onsite alarming by the voice guard that is installed on the test pile, and caution, warning oil stealer stop stolen.

The utility model can receive the instruction from stolen early warning platform and Cathodic Protection Management System; as set pipeline any one pipeline testing apparatus pile No. along the line, collective position, current potential sample mode, system time etc., receive instructions such as stolen sound alarm cancellation.

Description of drawings

Accompanying drawing 1 is a monitoring device combining working principle block diagram

Accompanying drawing 2 is a joint-detection device circuit schematic diagram

Solid arrow is represented the data conduction among the figure, the transmission of dotted arrow presentation directives, and the double dot dash line arrow is represented the power supply supply

1-vibration transducer 2-test probe 3-timing power-down circuit 4-potentiometric sensor 5-A/D transducer 6-microprocessor CPU 7-data storage 8-clock module 9-GPRS module 10-voice guard 11-battery supply among Fig. 1

Embodiment

For realizing monitoring stolen signal and cathodic protection potential signal simultaneously, microprocessor CPU is selected PIC16F877 for use, and the SCL of the SCL of clock chip P8563, storage chip 24C01, SDA port and microprocessor, SDA pin also connect, and the storage of system clock and data is provided; The lithium cell power supply is connected with the vdd terminal mouth of microprocessor CPU by integrated stable voltage circuit, and system power supply is provided; The pipeline cathode protection test point is connected with test piece in the test probe by cut-off relay, and cut-off relay is by timing power-down circuit control timing momentary power failure, and an end of circuit is connected with the RC1 pin of microprocessor CPU; Test probe test piece and reference electrode are connected with the potentiometric sensor input end by lead respectively, and electric potential signal is connected with the RA0 end of microprocessor through after amplifying conversion treatment; Vibration transducer is digital, and its output terminal directly inserts the RC0 end of microprocessor; Stolen signal alarm loudspeaker connect the RC2 end of microprocessor, the warning of sounding when by the stolen signal;

Vibration transducer 1 is monitored ducted oscillating signal constantly, detected digital signal is sent to microprocessor CPU 6, through the acoustic signals collected and the stolen activity that sets in advance are sent knock sound wave (amplitude is big, frequency is low) and boring sound wave (frequency height, amplitude lower) substantially numerical value compare, analyze, if judge it is the sound that the stolen activity is sent, then microprocessor CPU 6 will issue instructions to audible alarm 10, simultaneously stolen information be sent to early warning master control platform by the GPRS module; In addition, microprocessor CPU regularly sends instruction to potentiometric sensor 46 every days, measure the cathodic protection energising current potential of test probe 2, and by microprocessor CPU 6 control test probes 2 and the momentary power failure of the timing power-down circuit 3 between pipeline is connected, potentiometric sensor 4 is measured the cathodic protection switch-off potential, electric potential signal is converted to digital signal through A/D converter 5 and sends microprocessor CPU 6 to, and microprocessor CPU 6 is stored to data storage 7 in order to calling with data; Microprocessor CPU 6 regularly is sent to the cathodic protection management platform with the cathodic protection potential data by the GPRS module, carries out data processing; Clock module 8 guides for microprocessor CPU 6 provides the time; Battery supply 11 adopts efficient lithium cell, for each electricity consumption module provides power supply, and by switch control timing working module, only connects when needs work, to prolong the replacement cycle of battery.

Claims

1. anti-early warning, the cathodic protection associating remote monitoring device stolen of oil and gas pipeline is characterized in that being made up of several parts such as pipeline test pile, cathode protection testing probe, potentiometric sensor, vibration transducer, stolen alarming horn, microprocessor CPU chip, GPRS transmission chips; This device key features is for detecting cathodic protection potential and the anti-theft oil oscillating signal is monitored and focused on same pipeline test pile and finish; alarm sends the stolen audible alarm in the test pile, and monitor signal can send to server and alarm platform by GPRS module communication mode.

2. anti-early warning, the cathodic protection associating remote monitoring device stolen of pipeline according to claim 1, it is characterized in that described circuit theory diagrams are made up of cathodic protection potential signal input part, stolen oscillating signal input end, microprocessor CPU, storage, time module, GPRS module, battery supply, voice guard etc., wherein the cathodic protection potential signal input part is made of test probe, timing power-down circuit, potentiometric sensor, current potential A/D change-over circuit, and stolen acoustic signals input end is made of vibration transducer, A/D converter; Each control circuit and element link to each other by preface successively.

3. anti-early warning, the cathodic protection associating remote monitoring device stolen of pipeline according to claim 1, it is characterized in that the monitoring test piece is connected by circuit with pipeline in the cathode protection testing probe, circuit is in normally open, measures that the potential difference between the test piece and reference electrode is the energising current potential in the test probe this moment; Microprocessor CPU regularly cuts off the power supply by measurement test piece and pipeline in the timing power-down circuit control cathode protection test probe, can measure the cathodic protection switch-off potential.

4. anti-early warning, the cathodic protection associating remote monitoring device stolen of pipeline according to claim 1, it is characterized in that vibration transducer and tube contacts, and electrically connect with microprocessor CPU, circuit is in normally open, and oscillating signal carries out analysing and processing by microprocessor CPU; The stolen signal is sent to the master control platform by the GPRS module, reports particular location and warning pile No. that stolen takes place; The voice guard of opening simultaneously on the test pile carries out onsite alarming.