CN106128262B - A kind of oil-gas pipeline defects detection and monitoring experiment porch - Google Patents

A kind of oil-gas pipeline defects detection and monitoring experiment porch Download PDF

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Publication number
CN106128262B
CN106128262B CN201610407890.7A CN201610407890A CN106128262B CN 106128262 B CN106128262 B CN 106128262B CN 201610407890 A CN201610407890 A CN 201610407890A CN 106128262 B CN106128262 B CN 106128262B
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layer
pipe
pipeline
solenoid valve
detection section
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CN106128262A (en
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王文和
王骏逸
易俊
沈溃领
李凤
陈坤
王力
王雨
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Chongqing University of Science and Technology
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Chongqing University of Science and Technology
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes

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Abstract

The present invention discloses a kind of oil-gas pipeline defects detection and monitoring experiment porch, including oil-gas pipeline test experience platform, pipe detection experiment porch is equipped with a three-layer pipe road supporting mechanism, the three-layer pipe road supporting mechanism is successively arranged first pipe layer from bottom to top, second pipe layer, third pipe layers, L shape pipe layers are equipped at three-layer pipe road supporting mechanism edge, soil is all covered in first pipe layer and L shape pipe layers, first pipe layer, second pipe layer, third pipe layers, the inlet end of L shape pipe layers is connected to the gas outlet of air compressor.The utility model has the advantages that oil-gas pipeline test experience platform occupied area is small, and it is compact-sized, it is easy to impart knowledge to students, pipeline A detection accuracy is high, good reliability, provides the foundation for the monitoring and detection of true pipe leakage, carries out experimental teaching to student convenient for training special pipeline testing staff and school.

Description

A kind of oil-gas pipeline defects detection and monitoring experiment porch
Technical field
The present invention relates to oil gas safety engineering fields, specifically, being a kind of oil-gas pipeline defects detection and monitoring Experiment porch.
Background technique
Since oil-gas pipeline is connected many originals such as not close and artificial destruction by spontaneous corrosion, aging, natural calamity, pipeline Because influencing, pipe leakage accident happens occasionally, if conveying is poisonous and harmful, inflammable and explosive substance, be easy to cause in personnel The major accidents such as fire explosion occur for poison.
But since the distance that pipeline often transmits is longer, coverage is wide, when leakage, damaged or pipe occur for pipeline When road coating occurs damaged, it is difficult to find the defect fault point of pipeline, and can not determine the seriousness of defect failure, and existing skill Art is ideal not enough to the analog detection effect of pipeline accident.Therefore lead to the heavy workload for searching defect of pipeline fault point, pipe Road maintenance and repair is at high cost, the energy substance inside pipeline can not normal transport, influence to work normally, waste of resource.
And it since pipeline coverage is wide, takes up a large area, scene carries out pipeline A detection teaching and needs long-distance postscript It relates to, is observed and learnt to different positions, teaching condition is arduous, and quality of instruction is poor, and instruction cost is high, it is difficult to cultivate The professional testing staff of high professional qualification.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes that a kind of oil-gas pipeline defects detection and monitoring experiment porch, structure are tight It gathers, easy to use, vivid simulating monitors defect of pipeline and detect, convenient for training special pipeline testing staff and school On-the-spot teaching is carried out to student.
In order to achieve the above objectives, the specific technical solution that the present invention uses is as follows:
A kind of oil-gas pipeline defects detection and monitoring experiment porch, it is critical that including that oil-gas pipeline test experience is flat Platform, the pipe detection experiment porch are equipped with a three-layer pipe road supporting mechanism, and the three-layer pipe road supporting mechanism is from bottom to top The first, second, third pipe layers are successively arranged, L shape pipe layers, first pipe are additionally provided with by three-layer pipe road supporting mechanism Soil, first pipe layer, second pipe layer, third pipe layers, L shape pipe layers are all covered in channel layer and L shape pipe layers Inlet end be connected to the gas outlet of air compressor.
The pipe detection experiment porch occupied area is small, compact-sized, is easy to impart knowledge to students, vivid simulates to defect of pipeline Monitoring and detection carry out on-the-spot teaching to student convenient for training special pipeline testing staff and school.
Further, the first pipe layer is anticorrosion coating on pipeline detection layers, and the first pipe layer includes five sections of pipes Road coating detects section, respectively the first corrosion-inhibiting coating damage testing section, the first corrosion-inhibiting coating scratch detection section, corrosion-inhibiting coating removing Section, the second corrosion-inhibiting coating scratch detection section, the second corrosion-inhibiting coating damage testing section are detected, five sections of pipeline coatings detect section Inlet end is communicated with the first air inlet pipe, and first air inlet pipe is communicated with the gas outlet of the air compressor, described in five sections The outlet side of pipeline coatings detection section is communicated with the first escape pipe；Prevent in the first corrosion-inhibiting coating damage testing section, first Rotten coating scratch detection section outer surface is coated with clinkery epoxy powder, prevents in the second corrosion-inhibiting coating scratch detection section, second The outer surface of rotten coating damage detection section is coated with polyethylene anticorrosive coating, and the corrosion-inhibiting coating removing detection section is by fusion bonded epoxy powder End applies interval and polyethylene coating section is formed by connecting, and is coated with fusion bonded epoxy powder in External fusion bonded epoxy coating section outer surface End is coated with polyethylene anticorrosive coating in polyethylene coating section outer surface；The second pipe layer is pipeline coatings and ontology Damage check layer, the second pipe layer include five segment pipe defects detection sections, and respectively coating damage detects section, pipe damage Detect section, pipeline crack detection section, corrosive pipeline perforation detection section, pipeline pit detection section, five sections of pipeline defect detections The inlet end of section is communicated with the second air inlet pipe, and second air inlet pipe is communicated with the gas outlet of the air compressor, and five sections The outlet side of the pipeline defect detection section is communicated with the second escape pipe；It is coated on coating damage detection section outer surface There is clinkery epoxy powder, the pipe damage detection section includes applying interval and uncoated section, in the coating of pipe damage detection section Section outer surface is coated with clinkery epoxy powder；Third pipe layers are pipeline gas leak detection layer, and third pipe layers include five sections Pipeline gas leak detection section, respectively stomata leak detection section, valve leak detection section, fracture leak detection section, weld seam are let out Leak detection section, Crack Leakage detect section, and the inlet end of five segment pipe Leakage inspection sections is communicated with third air inlet pipe, third Air inlet pipe is communicated with the gas outlet of the air compressor, and the outlet side of five sections of pipeline gas leak detection sections is and third Escape pipe communicates；The L shape pipe layers are long distance pipeline integrity detection layer, and L shape pipe layers include four sections of long distance pipelines Defects detection section, respectively long distance pipeline coating damage detection section, long distance pipeline coating stripping detection section, long distance pipeline valve are let out Leak detection section, long distance pipeline stomata leak detection section, the input port of four sections of long conveyance pipe defects detection sections is and input pipe Road communicates, and the input channel is connected to the gas outlet of the air compressor or exit of pump, four sections of long distance pipelines The delivery outlet of defects detection section is communicated with output channel.
First pipe layer, which simulates, detects anticorrosion coating on pipeline, and second pipe layer simulates pipeline coatings and ontology Damage check, third pipe layers simulate pipeline gas leak detection, and L shape pipe layers simulate long distance pipeline integrity detection, By the way that defect point is arranged in the first, second, third pipe layers, L shape pipe layers, the pipeline gas leakage simulated on pipeline is lacked It falls into, corrosion-inhibiting coating defect, pipeline body defects, real-time monitoring, detection is reliable, and the various defects of study pipeline are understood convenient for people Monitoring and testing process, for true pipe leakage monitoring and detection provide the foundation, improve active service pipe leakage control Reliability, reduce active service pipe leakage maintenance cost, convenient for training special pipeline testing staff and school to student Carry out experimental teaching.
Five segment pipe coatings detection section concatenates at random forms first pipe, and first pipe is circulating line, in first pipe Inside parallel is equipped with second pipe, and the public connecting end of five segment pipe coatings detection section between any two is connected to a first layer One end of pipeline connects, totally five first layer connecting pipes, and the other end of five first layer connecting pipes connects with second pipe It connects, five first layer connecting pipes are successively are as follows: the company of first layer first, first layer second, first layer third, first layer the 4th, One layer of the 5th connecting pipe, first pipe and second pipe between adjacent two first layer connecting pipes correspond；First Multiple first spare interfaces, multiple first safety valves, the inspection of multiple first anti-corrosion layer status are respectively equipped on pipeline and second pipe Instrument, the first pipe and the second pipe arranged in parallel are surveyed in iron groove, the first pipe and described second is managed The distance between road is 200mm.
Buried pipeline setting is circularized, occupied area reduces, and is detected in section by control setting in five segment pipe coatings Valve turn on and off, come out the pipe detection being arranged on buried pipeline point independently of each other, respectively with the first air inlet Pipe, the first escape pipe communicate, and form independent flow circuits, and situation when pipeline fault occurs in the vivid true pipeline of simulation, Be conducive to train professional testing staff and school carries out experimental teaching.
Five segment pipe defects detection sections are concatenated into third pipeline at random, and third pipeline is circulating line, third insides of pipes Be equipped with the 4th pipeline parallel, be coated with clinkery epoxy powder on the 4th pipeline external surface, five segment pipe defects detection sections two-by-two it Between public connecting end connect with a second layer connecting pipe one end, totally five second layer connecting pipes, five second layers The connecting pipe other end is connected to the 4th pipeline, and five articles of second layer connecting pipes are respectively as follows: first, second layer of the second layer Two, the second layer, the second layer the 4th, the 5th connecting pipe of the second layer, the third pipeline between adjacent two second layer connecting pipes It is corresponded with the 4th pipeline；Be respectively equipped on third, the 4th pipeline multiple second spare interfaces, multiple second safety valves, Multiple second erosion resistant coating condition detection instrument, multiple second ultrasonic metal inspection instrument, multiple 2nd HCC- magnetoresistance method calibrators.
Five segment pipe defects detection sections concatenate the third pipeline for forming annular at random, and occupied area is small, by managing in part Road anticorrosive coating can detecte out the influence that the erosion resistant coating generates the protecting effect and erosion resistant coating of pipeline to pipeline, Defect of pipeline also is set on the pipeline of uncoated any erosion resistant coating simultaneously, by the way that different defect failure is arranged, to pipeline into Row carrying out flaw detection, each test point is mutually indepedent, and detection accuracy is high, securely and reliably, facilitates the professional testing staff of training and school Carry out experimental teaching.
Five segment pipe Leakage inspection sections concatenate at random forms the 5th pipeline, and the 5th pipeline is circulating line, the 5th Insides of pipes is equipped with the 6th pipeline parallel, the public connecting end of five segment pipe Leakage inspection sections between any two with one article One end connection of three layers of connecting pipe, totally five third layer connecting pipes, the other end of five third layer connecting pipes with The connection of 6th pipeline, five third layer connecting pipes are respectively as follows: third layer first, second, third layer of third of third layer, third Layer four, the 5th connecting pipe of third layer, the 5th pipeline and the 6th pipeline between adjacent two articles of third layer connecting pipes It corresponds；Multiple third spare interfaces, multiple thirds safety are respectively equipped on the 5th pipeline and the 6th pipeline Valve, multiple third gas leakage detectors, the 5th pipeline and the 6th pipeline arranged in parallel are in same level.
It truly simulates in oil-gas pipeline transmission process, the monitoring and detection carried out to pipe leakage makes with this solution Pipeline gas leak detection point all comes independently of each other, lays a good foundation for real line leakage and detection, improves true The reliability of real pipeline leakage testing, during production and transport, pipe leakage and existing defect are remedied in time, and Can the program, learn the detection method of pipe leakage convenient for people, be conducive to train special pipeline testing staff and school pair Student carries out experimental teaching.
Four sections long defeated pipeline defect detection section concatenates at random forms the 7th pipeline, is equipped in parallel in plane where the 7th pipeline 8th pipeline, the common end connecting pin of four sections long defeated pipeline defect detection section between any two with " L " layer connecting pipe One end connection, totally three " L " layer connecting pipes, the other end of three articles of " L " layer connecting pipes are connected to the 8th pipeline, and three " L " Layer connecting pipe is respectively " L " layer first, " L " layer second, " L " layer third connecting pipeline, is separated by three " L " layer connecting pipes The long conveyance pipe defect detection section opened and the 8th pipeline correspond；One end of 7th pipeline is connected to input channel, the 7th pipe The other end in road is connected to output channel, and the 8th pipeline one end is connected to input channel, the 8th pipeline other end and output channel Connection；It is coated with polyethylene anticorrosion coating on the 7th pipeline and the 8th pipe surface, the first yin is installed on the 7th pipeline Electrode protector and the first cathodic protection stake, are connected with the first potential detector in the first cathodic protection stake, in the 8th pipeline On the second cathode protection device and the second cathodic protection stake are installed, be connected with the second potentiometric detection in the second cathodic protection stake Instrument；Multiple 4th pressure reducing valves are respectively equipped in the 7th pipeline and the 8th pipeline, multiple 4th safety valves, multiple four reserved are connect Mouth, multiple 4th conduit leakage detecting instruments, multiple 4th piping anti-corrosive coating detectors, the 7th pipeline and the 8th pipeline It is arranged side by side in organic glass groove, the spacing between the 7th pipeline and the 8th pipeline is 500mm, in the 7th pipe At least soil of 500mm is covered on road and the 8th pipeline.
It is passed through gas or liquid to input channel, it is long to four sections respectively respectively through four sections long defeated pipeline defect detection section Defeated pipeline defect detection section is individually detected, at the same pipeline will appear leakage, coating damage the defects of carried out detection, Measurement, simulates buried long distance pipeline corrosion-inhibiting coating, cathodic protection and the detection to defect of pipeline, understands study pipe convenient for people Road leakage monitoring and testing process are imparted knowledge to students conducive to giveing training to begining to learn technical staff conducive to school, and detection accuracy is high, Detection basis is provided for the monitoring and detection of true pipe leakage, the reliability of true pipe protection is improved, reduces true The cost of real pipe-line maintenance.
First corrosion-inhibiting coating damage testing section, the first corrosion-inhibiting coating scratch detection section, corrosion-inhibiting coating removing detection section, second Corrosion-inhibiting coating scratch detection section, the second corrosion-inhibiting coating damage testing section are simultaneously connected between the first air inlet pipe and the first escape pipe；It applies Layer damage testing section, pipe damage detection section, pipeline crack detection section, corrosive pipeline perforation detection section, pipeline pit detection section And it is connected between second air inlet pipe and second escape pipe；The stomata leak detection section, is broken at valve leak detection section It splits leak detection section, weld leakage detection section, Crack Leakage detection section and is connected in the third air inlet pipe and the third outlet Between pipe；The long distance pipeline coating damage detection section, long distance pipeline coating stripping detection section, the detection of long distance pipeline valve leak Section, long distance pipeline stomata leak detection section are simultaneously connected between the input channel and the output channel.
Using the above scheme, respectively by the pipe detection section in the first, second, third pipe layers and L shape pipe layers It is mutually indepedent to come out, so that all pipe detection sections is formed independent flow circuits, to be detected and be detected, improves detection essence Degree and detection reliability, simulate true pipe detection.
Three-layer pipe road supporting mechanism include height first layer supporting mechanism incremented by successively, second layer supporting mechanism, Third layer supporting mechanism；First layer supporting mechanism includes first support frame of multiple " door " shapes disposed in parallel, and first pipe layer is put It sets on first layer supporting mechanism；Second layer supporting mechanism includes second support frame of multiple " door " shapes disposed in parallel, the second pipe Channel layer is placed on second layer supporting mechanism；Third layer supporting mechanism includes at least two " door " shape third supports disposed in parallel Frame, third pipe layers are placed on third layer supporting mechanism；First, second, third support frame is arranged in parallel and height is successively passed Increase.
Using the above scheme, pipe detection experiment porch accounts for design rationally, and occupied area is small, compact-sized, is suitable for real Room teaching is tested, easy disassembling, observation is convenient, simulation image.
For the ease of controlling the on-off of chimneying, air compressor, water pump, water tank are arranged at the oil-gas pipeline inspection It surveys on experiment porch, power control cabinet is installed on the oil-gas pipeline test experience platform.
Further describe, described first, second, third, fourth, the five, the six, the seven, the 8th pipelines be diameter The X80 steel pipe of 76mm, wall thickness 5mm.
Advantageous effect of the invention of the present invention: oil-gas pipeline test experience platform occupied area is small, compact-sized, is easy to teach It learns, pipeline A detection accuracy is high, provides the foundation for the monitoring and detection of true pipe leakage, and apparatus structure is simple, control Convenient and reliable, security performance is high, long service life, understands study line leakage and testing process convenient for people, improves The reliability of true pipe leakage control, reduces the cost of true pipe leakage maintenance, detects people convenient for training special pipeline Member and school carry out experimental teaching to student.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of inventive pipeline test experience platform；
Fig. 2 is the top view of pipe detection experiment porch of the invention；
Fig. 3 is the structural schematic diagram of first pipe layer of the present invention；
Fig. 4 is the structural schematic diagram of second pipe layer of the present invention；
Fig. 5 is the structural schematic diagram of third pipe layers of the present invention；
Fig. 6 is third pipe layers pipeline leakage detection and location schematic diagram；
Fig. 7 is the structural schematic diagram of L shape pipe layers of the present invention.
Specific embodiment
Specific embodiment and working principle of the present invention will be described in further detail with reference to the accompanying drawing.
From Fig. 1,2 as can be seen that a kind of oil-gas pipeline defects detection and monitoring experiment porch, including oil-gas pipeline detection are real Platform is tested, pipe detection experiment porch is equipped with a three-layer pipe road supporting mechanism, and the three-layer pipe road supporting mechanism is from bottom to top First pipe layer 1, second pipe layer 2, third pipe layers 3 are successively arranged, are additionally provided with L shape pipe by three-layer pipe road supporting mechanism Soil, first pipe layer 1, second pipe layer 2, third pipe are all covered in channel layer 4, first pipe layer 1 and L shape pipe layers 4 Channel layer 3, L shape pipe layers 4 inlet end be connected to the gas outlet of air compressor.
Fig. 3 can be seen that first pipe layer 1 is anticorrosion coating on pipeline detection layers, and first pipe layer 1 includes five segment pipe coatings Detect section: the first corrosion-inhibiting coating damage testing section 11, the first corrosion-inhibiting coating scratch detection section 12, corrosion-inhibiting coating removing detection section 13, the second corrosion-inhibiting coating scratch detection section 14, the second corrosion-inhibiting coating damage testing section 15, five segment pipe coatings detect the air inlet of section End is communicated with the first air inlet pipe, and the first air inlet pipe is communicated with the gas outlet of air compressor, and five segment pipe coatings detect section Outlet side is communicated with the first escape pipe；Outside first corrosion-inhibiting coating damage testing section 11, the first corrosion-inhibiting coating scratch detection section 12 Surface is coated with clinkery epoxy powder, the second corrosion-inhibiting coating scratch detection section 14, the second corrosion-inhibiting coating damage testing section 15 it is outer Surface is coated with polyethylene anticorrosive coating, and corrosion-inhibiting coating removing detection section 13 is by External fusion bonded epoxy coating section, polyethylene coating section It is formed by connecting, is coated with clinkery epoxy powder, the coating of polyethylene coating section outer surface in External fusion bonded epoxy coating section outer surface There is polyethylene anticorrosive coating；As can be seen from Figure 4, second pipe layer 2 is pipeline coatings and ontology damage check layer, second pipe layer 2 Including five segment pipe defects detection sections, respectively coating damage detection section 21, pipe damage detection section 22, pipeline crack detects section 23, corrosive pipeline perforation detection section 24, pipeline pit detection section 25, the inlet end of five segment pipe defects detection sections with second into Tracheae communicates, and the second air inlet pipe is communicated with the gas outlet of air compressor, and the outlet side of five segment pipe defects detection sections is with Two escape pipes communicate；Coating damage detects and is coated with clinkery epoxy powder on 21 outer surface of section, and pipe damage detection section 22 includes Interval and uncoated section are applied, the painting interval outer surface that pipe damage detects section 22 is coated with clinkery epoxy powder；Fig. 5 can be seen that, Third pipe layers 3 are pipeline gas leak detection layer, and third pipe layers 3 include five segment pipe Leakage inspection sections: stomata is let out Leak detection section 31, valve leak detection section 32, fracture leak detection section 33, weld leakage detection section 34, Crack Leakage detect section 35, the inlet end of five segment pipe Leakage inspection sections is communicated with third air inlet pipe, third air inlet pipe and air compressor Gas outlet communicates, and the outlet side of five segment pipe Leakage inspection sections is communicated with third escape pipe；Fig. 7 can be seen that, L shape pipe Channel layer 4 is long distance pipeline integrity detection layer, whole L-shaped, and L shape pipe layers 4 include four sections long defeated pipeline defect detection Section: long distance pipeline coating damage detects section 41, long distance pipeline coating stripping detection section 42, long distance pipeline valve leak and detects section 43, the input port of long distance pipeline stomata leak detection section 44, four sections long defeated pipeline defect detection section is communicated with input channel, defeated Enter pipeline to be connected to the gas outlet of air compressor or exit of pump, the delivery outlet of four sections long defeated pipeline defect detection section with Output channel communicates.
Fig. 3 can be seen that five segment pipe coatings detection section is concatenated into first pipe, and first pipe is circulating line, the first pipe Road inside parallel is equipped with second pipe, and the public connecting end between five segment pipe coatings detect section two-by-two is connected to a first layer One end of pipeline connects, totally five first layer connecting pipes, and the other end of five first layer connecting pipes connects with second pipe It connects, is followed successively by the first connecting pipe of first layer 161, the second connecting pipe of first layer 162, first layer third connecting pipeline 163, One layer of the 4th connecting pipe 164, the 5th connecting pipe 165 of first layer, the first pipe between adjacent two first layer connecting pipes Road, second pipe correspond.Another embodiment, five segment pipe coatings detection section are simultaneously connected in the first air inlet pipe and the first escape pipe Between.Fig. 3 is also seen that the first corrosion-inhibiting coating damage testing section 11 is equipped with the first corrosion-inhibiting coating damage testing point 1101, the 2 corrosion-inhibiting coating damage testing points 1102, the first corrosion-inhibiting coating damage testing point 1101, the second corrosion-inhibiting coating damage testing point 1102 are less than or equal to the circular pit of 10mm for diameter, and the upstream of the first corrosion-inhibiting coating damage testing point 1101 is equipped with first layer the The downstream of one solenoid valve 1103, the first corrosion-inhibiting coating damage testing point 1101 is successively arranged the first baroceptor of first layer 1104, first layer first gas flow sensor 1105, the second corrosion-inhibiting coating damage testing point 1102, the second air pressure transmission of first layer Sensor 1106, first layer second gas flow sensor 1107, first layer second solenoid valve 1108, the first corrosion-inhibiting coating breakage inspection Section 11 is surveyed to connect with one end of the public connecting end of next segment pipe coating detection section and the first connecting pipe of first layer 161, the One layer of first connecting pipe 161 is equipped with first layer third solenoid valve 1109, and the first corrosion-inhibiting coating damage testing section 11 is corresponding Second pipe is equipped with the 4th solenoid valve 1110 of first layer；First corrosion-inhibiting coating scratch detection section 12 is drawn including the first corrosion-inhibiting coating Trace test point 1201, the first corrosion-inhibiting coating scratch detection point 1201 are that length is arranged in the pipe surface for being coated with clinkery epoxy powder 10mm, wide 1mm are high are as follows: the upstream of 0.5mm groove, the first corrosion-inhibiting coating scratch detection point 1201 is equipped with the 5th electromagnetism of first layer Valve 1202, the downstream of the first corrosion-inhibiting coating scratch detection point 1201 are equipped with first layer third baroceptor 1203, first layer the Three gas flow sensors 1204, the 6th solenoid valve 1205 of first layer, the first corrosion-inhibiting coating scratch detection section 12 and next section of pipe The public connecting end of road coating detection section is connected with one end of the second connecting pipe of first layer 162, in the second communicating pipe of first layer Road 162 is equipped with the 7th solenoid valve 1206 of first layer, and the corresponding second pipe of the first corrosion-inhibiting coating scratch detection section 12 is equipped with The 8th solenoid valve 1207 of first layer；The External fusion bonded epoxy coating section of corrosion-inhibiting coating removing detection section 13 is applied equipped with the first anti-corrosion Layer removing test point 1301, the 9th solenoid valve 1302 of first layer, the 4th baroceptor 1303 of first layer, the 4th gas of first layer Flow sensor 1304, the 9th solenoid valve 1302 of first layer are located at the first corrosion-inhibiting coating removing 1301 upstream of test point, first layer 4th baroceptor 1303, the 4th gas flow sensor 1304 of first layer are located at the first corrosion-inhibiting coating removing test point 1301 Downstream；Corrosion-inhibiting coating removing detection 13 polyethylene coating section of section is equipped with the second corrosion-inhibiting coating and removes test point 1305, first layer 5th baroceptor 1306, the 5th gas flow sensor 1307 of first layer, ten solenoid valve 1308 of first layer, the second anti-corrosion apply Layer removing test point 1305, the 5th baroceptor 1306 of first layer, the 5th gas flow sensor 1307 of first layer, first layer Ten solenoid valves 1308 are sequentially arranged at the downstream of the 4th gas flow sensor 1304 of first layer；Corrosion-inhibiting coating removing detection section 13 with The public connecting end of next segment pipe coating detection section is connected with 163 one end of first layer third connecting pipeline, and first layer third connects 163 other ends of threading a pipe are connect with second pipe, and first layer third connecting pipeline 163 is equipped with 11 solenoid valve of first layer 1309, the corrosion-inhibiting coating removing detection corresponding second pipe of section 13 is equipped with 12 solenoid valve 1310 of first layer；First anti-corrosion applies Layer removing test point 1301, the second corrosion-inhibiting coating removing test point 1305 are that the pipe surface coated with erosion resistant coating is small equipped with diameter In the round coating stripping of 10mm.The second corrosion-inhibiting coating scratch detection point 1401 is set in second corrosion-inhibiting coating scratch detection section 14, Second corrosion-inhibiting coating scratch detection point 1401 is the long 20mm that pipe surface is set, wide 1mm, the groove of high 1mm.Second corrosion-inhibiting coating The upstream of scratch detection point 1401 is equipped with 13 solenoid valve 1402 of first layer, the downstream of the second corrosion-inhibiting coating scratch detection point 1401 It is successively arranged the 6th baroceptor 1403 of first layer, the 6th gas flow sensor 1404 of first layer, 14 electromagnetism of first layer Valve 1405, the public connecting end and first layer the 4th of segment pipe coating detection section under the second corrosion-inhibiting coating scratch detection section 14 One end of connecting pipe 164 connects, and the other end of the 4th connecting pipe 164 of first layer is connect with second pipe, in first layer the Four connecting pipes 164 are equipped with 15 solenoid valve 1406 of first layer, in the second corrosion-inhibiting coating scratch detection section 14 corresponding second Pipeline is equipped with 16 solenoid valve 1407 of first layer；It is damaged that second corrosion-inhibiting coating damage testing section 15 is equipped with third corrosion-inhibiting coating Test point 1501, the 4th corrosion-inhibiting coating damage testing point 1502, third corrosion-inhibiting coating damage testing point 1501, the 4th corrosion-inhibiting coating Damage testing point 1502 is the circular pit that diameter is less than or equal to 10mm, in the upstream of third corrosion-inhibiting coating damage testing point 1501 Equipped with 17 solenoid valve 1503 of first layer, first layer the 7th is successively arranged in the downstream of third corrosion-inhibiting coating damage testing point 1501 Baroceptor 1504, the 7th gas flow sensor 1505 of first layer, the 4th corrosion-inhibiting coating damage testing point 1502, first layer 8th baroceptor 1506, the 8th gas flow sensor 1507 of first layer, 18 solenoid valve 1508 of first layer, it is anti-second The 5th connecting pipe 165 of public connecting end and first layer of rotten coating damage detection section 15 and next segment pipe coating detection section One end connection, the other end of the 5th connecting pipe 165 of first layer is connect with second pipe, in the 5th connecting pipe 165 of first layer It is equipped with 19 solenoid valve 1509 of first layer, first is equipped on the corresponding second pipe of the second corrosion-inhibiting coating damage testing section 15 20 solenoid valve 1510 of layer；First air inlet pipe is arranged in the second corrosion-inhibiting coating damage testing section 15, and the first escape pipe is located at the On the corresponding second pipe of two corrosion-inhibiting coating damage testing section 15, the first intake valve, first layer the are equipped in the first air inlet pipe Nine baroceptors 1701, the 9th gas flow sensor 1702 of first layer are equipped with the in the upstream of the first air inlet pipe junction One layer of 21 solenoid valve 1703, the present embodiment, 17 solenoid valve 1503 of first layer and 21 solenoid valve 1703 of first layer are Same solenoid valve, the downstream of the first air inlet pipe are equipped with 22 solenoid valve 1704 of first layer, and the first escape pipe is equipped with first and goes out Ten gas flow sensor 1706 of air valve, ten baroceptor 1705 of first layer and first layer, the first escape pipe junction it is upper Trip is equipped with 23 solenoid valve 1707 of first layer, and the downstream of the first escape pipe is equipped with 24 solenoid valve 1708 of first layer, this reality Example is applied, 20 solenoid valve 1510 of first layer and 24 solenoid valve 1708 of first layer are same solenoid valve；First pipe and second The first spare interface, the first safety valve, the first erosion resistant coating condition detection instrument, first pipe and second pipe are respectively equipped on pipeline For arranged in parallel in iron groove, the distance between first pipe and second pipe are 200mm.
As can be seen from Figure 4, five segment pipe defects detection sections are concatenated into third pipeline, and third pipeline is circulating line, third Insides of pipes is equipped with the 4th pipeline parallel, is coated with clinkery epoxy powder, five segment pipe defects detections on the 4th pipeline external surface The public connecting end of section between any two is connect with one end of a second layer connecting pipe, totally five second layer connecting pipes, The other end of five articles of second layer connecting pipes is connected to the 4th pipeline, which is respectively as follows: the second layer First connecting pipe 261, the second connecting pipe of the second layer 262, second layer third connecting pipeline 263, the 4th communicating pipe of the second layer Road 264, the 5th connecting pipe 265 of the second layer, third pipeline and the 4th pipeline one between adjacent two articles of second layer connecting pipes One is corresponding.Another embodiment, five segment pipe defects detection sections are simultaneously connected between the second air inlet pipe and the second escape pipe.
From Fig. 4 it can also be seen that coating damage detection section 21 includes coating damage test point 2101, coating damage test point 2101 are less than or equal to the circular pit of 15mm for the uncoated diameter of the pipe surface setting coated with clinkery epoxy powder, apply 2101 upstream of layer damage testing point is equipped with the first solenoid valve of the second layer 2102, and the downstream of coating damage test point 2101 is successively arranged The first baroceptor of the second layer 2103, second layer first gas flow sensor 2104, second layer second solenoid valve 2105 apply Layer damage testing section 21 connects with the public connecting end of next pipeline defect detection section and one end of the first connecting pipe of the second layer 261 It connects, the first connecting pipe of the second layer 261 is equipped with second layer third solenoid valve 2106, and coating damage detects section 21 the corresponding 4th Pipeline is equipped with the 4th solenoid valve 2107 of the second layer；The painting interval that pipe damage detects section 22 is equipped with coating stripping test point 2201, coating Pinhole point 2202, coating stripping test point 2201 are the diameter of pipe surface setting less than or equal to 25mm's Round coating stripping, coating Pinhole point 2202 are that the fixed area of pipe surface is equipped with a large amount of pin hole, coating stripping inspection The upstream of measuring point 2201 is equipped with the 5th solenoid valve 2203 of the second layer, and the downstream of coating stripping test point 2201 is equipped with the second layer second Baroceptor 2204, second layer second gas flow sensor 2205, coating Pinhole point 2202, second layer third air pressure Sensor 2206, second layer third gas flow sensor 2207, the downstream of second layer third gas flow sensor 2207 are Pipe damage detects uncoated section of section 22, and pipe damage detects uncoated section of section 22 equipped with pipeline scratch detection point 2208, the upstream of pipeline scratch detection point 2208 is the painting interval that pipe damage detects section 22, pipeline scratch detection point 2208 Downstream is the 4th baroceptor 2209 of the second layer, the 4th gas flow sensor 2210 of the second layer, the 6th solenoid valve of the second layer 2211, in the second connecting pipe of public connecting end and the second layer of pipe damage detection section 22 and next pipeline defect detection section 262 one end connection, the other end of the second connecting pipe of the second layer 262 are connected to the 4th pipeline, the second connecting pipe of the second layer 262 are equipped with the 7th solenoid valve 2212 of the second layer, and pipe damage detects corresponding 4th pipeline of section 22 and is equipped with the second layer the 8th Solenoid valve 2213；It includes pipeline crack test point 2301 that pipeline crack, which detects section 23, and pipeline crack test point 2301 is uncoated There is the wide 2mm of the pipe surface setting of erosion resistant coating, the upstream of the crackle of deep 5mm, pipeline crack test point 2301 is equipped with the second layer 9th solenoid valve 2302, the downstream of pipeline crack test point 2301 are equipped with the 5th baroceptor 2303 of the second layer, the second layer the Five gas flow sensors 2304, ten solenoid valve 2305 of the second layer, in pipeline crack detection section 23 and next pipeline defect detection The public connecting end of section is connected to 263 one end of second layer third connecting pipeline, 263 other end of second layer third connecting pipeline and the The connection of four pipelines, second layer third connecting pipeline 263 are equipped with 11 solenoid valve 2306 of the second layer, detect section 23 in pipeline crack Corresponding 4th pipeline is equipped with 12 solenoid valve 2307 of the second layer；Corrosive pipeline perforation detection section 24 is perforated including corrosive pipeline Test point 2401, corrosive pipeline perforate test point 2401 be pipeline through corrosion and caused by aperture be less than or equal to 3mm perforation, pipeline The upstream of corrosion failure test point 2401 is equipped with 13 solenoid valve 2402 of the second layer, perforates under test point 2401 in corrosive pipeline Trip is equipped with the 6th baroceptor 2403 of the second layer, the 6th gas flow sensor 2404 of the second layer, 14 solenoid valve of the second layer 2405, the 4th connecting pipe of public connecting end and the second layer of corrosive pipeline perforation detection section 24 and next pipeline defect detection section 264 one end connection, the other end of the 4th connecting pipe 264 of the second layer are connected to the 4th pipeline, the 4th connecting pipe of the second layer 264 are equipped with 15 solenoid valve 2406 of the second layer, and corrosive pipeline perforation detection corresponding 4th pipeline of section 24 is equipped with the second layer 16 solenoid valves 2407；Pipeline pit detection section 25 includes pipe surface pit detection point 2501, pipe surface pit detection point 2501 circular pit of the diameter less than or equal to 10mm to be set in the pipe surface for being not coated with erosion resistant coating, the inspection of pipe surface pit The upstream of measuring point 2501 is equipped with 17 solenoid valve 2502 of the second layer, and the downstream of pipe surface pit detection point 2501 is equipped with the second layer 7th baroceptor 2503, the 7th gas flow sensor 2504 of the second layer, 18 solenoid valve 2505 of the second layer, it is recessed in pipeline Hole detection section 25 is connected to one end of the 5th connecting pipe 265 of the public connecting end of next pipeline defect detection section and the second layer, The other end of the 5th connecting pipe 265 of the second layer is connected to the 4th pipeline, and the 5th connecting pipe 265 of the second layer is equipped with the second layer 18 solenoid valves 2506 are equipped with 20 solenoid valve 2507 of the second layer on corresponding 4th pipeline of pipeline pit detection section 25；The Two air inlet pipe are arranged in pipeline pit detection section 25, and air inlet pipe is equipped with the second intake valve, the 8th baroceptor of the second layer 2701, the upstream of the 8th gas flow sensor 2702 of the second layer, the second air inlet pipe and third pipeline junction is equipped with the second layer The downstream of 21 solenoid valves 2703, the second air inlet pipe and third pipeline junction is equipped with 22 solenoid valve 2704 of the second layer, The present embodiment, 17 solenoid valve 2502 of the second layer and 22 solenoid valve 2704 of the second layer are same solenoid valve；Second escape pipe It is located on corresponding 4th pipeline of pipeline pit detection section 25, the second escape pipe is equipped with the second air outlet valve, the 9th gas of the second layer Pressure sensor 2705, the 9th gas flow sensor 2706 of the second layer, in the upstream of the second escape pipe and the 4th pipeline junction Equipped with 23 solenoid valve 2707 of the second layer, the downstream of the second escape pipe and the 4th pipeline junction is equipped with 24 electricity of the second layer Magnet valve 2708,20 solenoid valve 2507 of the second layer and 24 solenoid valve 2708 of the second layer are same solenoid valve；Third, the 4th pipe Second spare interface, the second safety valve, the second erosion resistant coating condition detection instrument, the second ultrasonic wave metal is respectively equipped on road to visit Hurt instrument, the 2nd HCC-24 magnetoresistance method calibrator.
From fig. 5, it can be seen that five segment pipe Leakage inspection sections concatenate to form the 5th pipeline, the 5th pipeline is ring pipe Road is equipped with the 6th pipeline, the public connecting end of five segment pipe Leakage inspection sections between any two in the 5th insides of pipes parallel It is connected to one end of a third layer connecting pipe, totally five third layer connecting pipes, five third layer connecting pipes The other end is connected to the 6th pipeline, which is respectively as follows: the first connecting pipe of third layer 361, third The second connecting pipe 362 of layer, third layer third connecting pipeline 363, the 4th connecting pipe 364 of third layer, third layer the 5th are connected to Pipeline 365, the five, the 6th pipelines between adjacent two articles of third layer connecting pipes correspond.Another embodiment, five sections Between pipeline gas leak detection Duan Binglian third air inlet pipe and third escape pipe.Fig. 5 is also seen that stomata leak detection section 31 Including the first stomata leakage point 3101 and the second stomata leakage point 3102, the first stomata leakage point 3101 is aperture less than 10mm's Stomata, the second stomata leakage point 3102 are the stomata that aperture is 10mm~20mm, and the upstream of the first stomata leakage point 3101 is equipped with The first solenoid valve of third layer 3103, the downstream of the first stomata leakage point 3101 are successively arranged the first baroceptor of third layer 3104, third layer first gas flow sensor 3105, the second stomata leakage point 3102, the second baroceptor of third layer 3106, third layer second gas flow sensor 3107, third layer second solenoid valve 3108, stomata leak detection section 31 with it is next The public connecting end of segment pipe Leakage inspection section is connected to one end of the first connecting pipe of third layer 361, third layer first Connecting pipe 361 is equipped with third layer third solenoid valve 3109, is equipped on corresponding 6th pipeline of stomata leak detection section 31 The 4th solenoid valve 3110 of third layer；It includes valve leak point 3201 that valve leak, which detects section 32, and valve leak point 3201 is ball valve Leakage, 3201 upstream of valve leak point are equipped with the 5th solenoid valve 3202 of third layer, and the downstream of valve leak point 3201 is successively arranged Third layer third baroceptor 3203, third layer third gas flow sensor 3204, the 6th solenoid valve 3205 of third layer, valve The public connecting end and the second connecting pipe of third layer 362 of door leak detection section 32 and next segment pipe Leakage inspection section One end connection, the second connecting pipe of third layer 362 are equipped with the 7th solenoid valve 3206 of third layer, and it is corresponding that valve leak detects section 32 The 6th pipeline be equipped with the 8th solenoid valve 3207 of third layer；Being broken leak detection section 33 includes fracture leakage point 3301, fracture Leakage point 3301 simulates fracture leakage using slide valve, and the upstream of fracture leakage point 3301 is equipped with the 9th solenoid valve of third layer 3302, the downstream of fracture leakage point 3301 is successively arranged the 4th baroceptor 3303 of third layer, the 4th gas flow of third layer Sensor 3304, ten solenoid valve 3305 of third layer are broken the public affairs of leak detection section 33 and next segment pipe Leakage inspection section Connecting pin is connected to one end of third layer third connecting pipeline 363 altogether, and third layer is equipped on third layer third connecting pipeline 363 11 solenoid valves 3306 are equipped with 12 solenoid valve 3307 of third layer on fracture corresponding 6th pipeline of leak detection section 33；Weldering It includes weld leakage point 3401 that seam leakage, which detects section 34, and weld leakage point 3401 is that weld seam, weld leakage point are equipped on pipeline 3401 upstream is equipped with 13 solenoid valve 3402 of third layer, and the downstream of weld leakage point 3401 is successively arranged the 5th air pressure of third layer Sensor 3403, the 5th gas flow sensor 3404 of third layer, 14 solenoid valve 3405 of third layer, weld leakage detect section 34 It is connected to the public connecting end of next segment pipe Leakage inspection section with one end of the 4th connecting pipe 364 of third layer, Three layer of the 4th connecting pipe 364 is equipped with 15 solenoid valve 3406 of third layer, manages in weld leakage detection section 34 the corresponding 6th Road is equipped with 16 solenoid valve 3407 of third layer；It includes Crack Leakage point 3501, Crack Leakage point that Crack Leakage, which detects section 35, 3501 be pipeline crack, and the upstream of Crack Leakage point 3501 is equipped with 17 solenoid valve 3502 of third layer, Crack Leakage point 3501 Downstream is successively arranged the 6th baroceptor 3503 of third layer, the 6th gas flow sensor 3504 of third layer, third layer 18 Solenoid valve 3505, Crack Leakage detect the public connecting end and third layer the 5th of section 35 and next segment pipe Leakage inspection section One end of connecting pipe 365 is connected to, and 19 solenoid valve 3506 of third layer is equipped on the 5th connecting pipe 365 of third layer, is being split Corresponding 6th pipeline of line leak detection section 35 is equipped with 20 solenoid valve 3507 of third layer；The setting of third air inlet pipe is let out in crackle In leak detection section 35, the setting of third escape pipe is on Crack Leakage detection corresponding 6th pipeline of section 35, in third air inlet pipe Equipped with third intake valve, the 7th baroceptor 3701 of third layer and the 7th gas flow sensor 3702 of third layer, in third The upstream of air inlet pipe is equipped with 21 solenoid valve 3703 of third layer, in the present embodiment, 21 solenoid valve of third layer, 3703 He 18 solenoid valve 3505 of third layer is same solenoid valve, is equipped with 22 solenoid valve of third layer in the downstream of third air inlet pipe 3704, third air outlet valve, the 8th baroceptor 3705 of third layer and the 8th gas stream of third layer are equipped on third escape pipe Quantity sensor 3706 is equipped with 23 solenoid valve 3707 of third layer, in the present embodiment, third layer in the upstream of third escape pipe 20 solenoid valves 3507 and 23 solenoid valve 3707 of third layer are same solenoid valve, are equipped with third in the downstream of third escape pipe 24 solenoid valve 3708 of layer；In the present embodiment, it is respectively equipped with that a third is reserved to be connect on the 5th pipeline and the 6th pipeline Mouth, a third safety valve, a third gas leakage detector, the 5th pipeline and the 6th pipeline arranged in parallel are in same level On face.
From figure 7 it can be seen that four sections long defeated pipeline defect detection section concatenates the 7th pipeline of shape at random, put down where the 7th pipeline Face is equipped with the 8th pipeline 48 in parallel, four sections long defeated pipeline defect detection section two-by-two between common end connecting pin with " L " layer Connecting pipe one end is connected to, totally three " L " layer connecting pipes, the other end and the 8th pipeline 48 of three articles of " L " layer connecting pipes Connection, three " L " layer connecting pipes are respectively the first connecting pipe of " L " layer 471, the second connecting pipe of " L " layer 472, " L " layer Third connecting pipeline 473, the long conveyance pipe defect detection section separated by three articles of " L " layer connecting pipes and the 8th pipeline 48 1 One is corresponding.Another embodiment, four sections long defeated pipeline defect detection section are simultaneously connected between input channel and output channel.
Fig. 7 is also seen that one end of the 7th pipeline is connected to input channel 45, the other end and output channel of the 7th pipeline 46 connections, 48 one end of the 8th pipeline are connected to input channel 45, and 48 other end of the 8th pipeline is connected to output channel 46；The 7th It is coated with polyethylene anticorrosion coating on 48 surface of pipeline and the 8th pipeline, the first cathode protection device is installed on the 7th pipeline With the first cathodic protection stake, it is connected with the first potential detector in the first cathodic protection stake, is equipped on the 8th pipeline 48 Second cathode protection device and the second cathodic protection stake, are connected with the second potential detector in the second cathodic protection stake；Coating Damage testing section 41 includes first coating breaking point 4101, second coating breaking point 4102, and first coating breaking point 4101 is straight Diameter is less than the circular pit of 10mm, and second coating breaking point 4102 is circular pit of the diameter between 10mm-20mm, and first applies The upstream of layer breaking point 4101 is equipped with the first solenoid valve of " L " layer 4103, and the downstream for stating first coating breaking point 4101 is successively arranged " L " layer first pressure sensor 4104, " L " layer first flow sensor 4105, second coating breaking point 4102, " L " layer second Pressure sensor 4106, " L " layer second flow sensor 4107, " L " layer second solenoid valve 4108, coating damage detect section 41 with The public connecting end of next defeated pipeline defect detection section of segment length is connected to one end of the first connecting pipe of " L " layer 471, in " L " layer First connecting pipe 471 is equipped with " L " layer third solenoid valve 4109, on coating damage detection corresponding 8th pipeline 48 of section 41 Equipped with the 4th solenoid valve 4110 of " L " layer；It includes coating stripping point 4201 that coating stripping, which detects section 42, and including coating stripping point 4201 is Diameter on pipeline is 15mm polyethylene anticorrosion coating stripping, is equipped with the 5th electromagnetism of " L " layer in the upstream of coating stripping point 4201 Valve 4202 is equipped with " L " layer third pressure sensor 4203, " L " layer third flow sensor in the downstream of coating stripping point 4201 4204, the 6th solenoid valve 4205 of " L " layer, coating stripping detection section 42 are commonly connected with the defeated pipeline defect detection section of next segment length End is connected to one end of the second connecting pipe of " L " layer 472, and the 7th electromagnetism of " L " layer is equipped on the second connecting pipe of " L " layer 472 Valve 4206 is equipped with the 8th solenoid valve 4207 of " L " layer on coating stripping detection corresponding 8th pipeline 48 of section 42；Valve leak inspection Surveying section 43 includes valve leak point 4301, and valve leak point 4301 is that Ball valve of pipeline leaks, 4301 upstream of valve leak point Equipped with the 9th solenoid valve 4302 of " L " layer, 4301 downstream of valve leak point is successively arranged the 4th pressure sensor 4303 of " L " layer, " L " Layer the 4th flow sensor 4304, ten solenoid valve 4305 of " L " layer, valve leak detect section 43 and examine with next section of long conveyance pipe defect The public connecting end for surveying section is connected to one end of " L " layer third connecting pipeline 473, is equipped on " L " layer third connecting pipeline 473 11 solenoid valve 4306 of " L " layer is equipped with 12 solenoid valve of " L " layer on valve leak detection corresponding 8th pipeline 48 of section 43 4307；Stomata leak detection section 44 includes the first pore leakage point 4401 and the second pore leakage point 4402, the leakage of the first pore Point 4401 is the aperture that pore is 1.5mm, and the second pore leakage point 4402 is the aperture that pore is 3.0mm, the leakage of the first pore The upstream of point 4401 is equipped with 13 solenoid valve 4403 of " L " layer, and the downstream of the first pore leakage point 4401 is successively arranged " L " layer the 5th Pressure sensor 4404, the 5th flow sensor 4405 of " L " layer, the second pore leakage point 4402, the 6th pressure sensor of " L " layer 4406, the 6th flow sensor 4407 of " L " layer, 14 solenoid valve 4408 of " L " layer, in stomata leak detection section 44 the corresponding 8th Pipeline 48 is equipped with 15 solenoid valve 4409 of " L " layer；The 7th pressure sensor 4501 of " L " layer, " L " are equipped on input channel 45 Layer 4501 downstream of the 7th pressure sensor is equipped with the 7th flow sensor 4502 of " L " layer, and " L " layer the is equipped on output channel 46 Eight pressure sensors 4601,4601 downstream of the 8th pressure sensor of " L " layer is equipped with the 8th flow sensor 4602 of " L " layer, to defeated Enter and is passed through gas or liquid in pipeline 45；Gas, the first input end and air of input channel 45 are passed through into input channel 45 The escape pipe of compressor is connected to, and escape pipe is equipped with 16 solenoid valve 4503 of " L " layer, the first output end of input channel 45 and four The input port of the defeated pipeline defect detection section of segment length is connected to, the second input terminal of output channel 46 and four sections long defeated pipeline defect detection The delivery outlet connection of section, the second output terminal of output channel 46 are connected to the air inlet pipe of air compressor, and air inlet pipe is equipped with " L " 17 solenoid valve 4603 of layer；Liquid, the first input end of input channel 45 and the outlet pipe of water pump are passed through into input channel 45 Connection is equipped with 18 solenoid valve 4504 of " L " layer, the first output end of input channel 45 and four sections of long distance pipelines on the outlet pipe The input port of defects detection section is connected to, the delivery outlet of the second input terminal of output channel 46 and four sections long defeated pipeline defect detection section Connection, the second output terminal of output channel 46 are connected to the water inlet pipe of water tank, and water inlet pipe is equipped with 19 solenoid valve of " L " layer 4604, water pump is arranged in water tank；In the present embodiment, the 7th pipeline and the 8th pipeline 48 be respectively equipped with the 4th pressure reducing valve, One the 4th safety valve, the 4th spare interface, the 4th conduit leakage detecting instrument, the 4th piping anti-corrosive coating Detector, the 7th pipeline and the 8th pipeline 48 are arranged side by side in organic glass groove, between the 7th pipeline and the 8th pipeline 48 Spacing be 500mm, be covered at least soil of 500mm on the seven, the 8th pipelines 48.
From Fig. 1,2 as can be seen that three-layer pipe road supporting mechanism includes height first layer incremented by successively, the second layer, third Layer supporting mechanism；First layer supporting mechanism includes first support frame of multiple " door " shapes disposed in parallel, and first pipe layer 1 is placed on On first layer supporting mechanism；Second layer supporting mechanism includes second support frame of multiple " door " shapes disposed in parallel, second pipe layer 2 It is placed on second layer supporting mechanism；Third layer supporting mechanism includes multiple " door " shape third support frames disposed in parallel, third Pipe layers 3 are placed on third layer supporting mechanism；First, second, third support frame is arranged in parallel and height is incremented by successively.
Figure it is seen that air compressor, water pump, water tank are arranged on oil-gas pipeline test experience platform, in oil Power control cabinet is installed on feed channel test experience platform.
Preferably, first pipe, second pipe, third pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline, the 7th pipe Road, the 8th pipeline are diameter 76mm, the X80 steel pipe that wall thickness is 5mm.
The working principle of the invention: control air compressor is started to work, and has the gas outlet of air compressor stable Gas discharge.
First pipe layer 1: opening the first intake valve, the first air outlet valve, examines respectively to five segment pipe coatings detection section Survey: to the first corrosion-inhibiting coating damage testing section 11,19 solenoid valve 1509 of first layer, the 4th solenoid valve of first layer are closed in control 1110, the 5th solenoid valve 1202 of first layer, the 7th solenoid valve 1206 of first layer, 11 solenoid valve 1309 of first layer, first layer ten First layer 20 is opened in five solenoid valves 1406,22 solenoid valve 1704 of first layer, 23 solenoid valve 1707 of first layer, control One solenoid valve 1703, the first solenoid valve of first layer 1103, first layer second solenoid valve 1108, first layer third solenoid valve 1109, The 8th solenoid valve 1207 of first layer, 12 solenoid valve 1310 of first layer, 16 solenoid valve 1407 of first layer, 24 electricity of first layer Magnet valve 1708, and combine the first baroceptor of first layer 1104, first layer first gas flow sensor 1105, first layer the Two baroceptors 1106, first layer second gas flow sensor 1107 are further detected.
22 solenoid valve 1704 of first layer, the are closed in detection for the first corrosion-inhibiting coating scratch detection section 12, control One layer of first solenoid valve 1103,23 solenoid valve 1707 of first layer, first layer second solenoid valve 1108, the 8th electromagnetism of first layer Valve 1207, the 9th solenoid valve 1302 of first layer, 11 solenoid valve 1309 of first layer, 15 solenoid valve 1406 of first layer, control are beaten Open 21 solenoid valve 1703 of first layer, 19 solenoid valve 1509 of first layer, the 4th solenoid valve 1110 of first layer, first layer third The 5th solenoid valve 1202 of solenoid valve 1109, first layer, the 6th solenoid valve 1205 of first layer, the 7th solenoid valve 1206 of first layer, One layer of 12 solenoid valve 1310,16 solenoid valve 1407 of first layer, 24 solenoid valve 1708 of first layer, in conjunction with first layer Three baroceptors 1203, first layer third gas flow sensor 1204 are detected, and detection accuracy is improved.
The detection of detection section 13 is removed for corrosion-inhibiting coating, 22 solenoid valve 1704 of first layer, first layer are closed in control First solenoid valve 1103,23 solenoid valve 1707 of first layer, first layer third solenoid valve 1109, the 6th solenoid valve of first layer 1205,12 solenoid valve 1310 of first layer, 13 solenoid valve 1402 of first layer, 15 solenoid valve 1406 of first layer, first layer control System opens 21 solenoid valves 1703,19 solenoid valve 1509 of first layer, the 4th solenoid valve 1110 of first layer, the 8th electricity of first layer Magnet valve 1207, the 7th solenoid valve 1206 of first layer, the 9th solenoid valve 1302 of first layer, ten solenoid valve 1308 of first layer, first layer 11 solenoid valves 1309,16 solenoid valve 1407 of first layer, 24 solenoid valve 1708 of first layer, in conjunction with the 4th gas of first layer Pressure sensor 1303, the 4th gas flow sensor 1304 of first layer, the 5th baroceptor 1306 of first layer, first layer the 5th Gas flow sensor 1307 carries out detection of the coating to pipeline transportation, improves detection accuracy.
22 solenoid valve 1704, first of first layer is closed in detection to the second corrosion-inhibiting coating scratch detection section 14, control Layer the first solenoid valve 1103,23 solenoid valve 1707 of first layer, first layer third solenoid valve 1109, the 7th solenoid valve of first layer 1206,16 solenoid valve 1407 of first layer, ten solenoid valve 1308 of first layer, 18 solenoid valve 1508 of first layer, control open the One layer of 21 solenoid valve 1703,19 solenoid valve 1509 of first layer, the 4th solenoid valve 1110 of first layer, the 8th electromagnetism of first layer Valve 1207,12 solenoid valve 1310 of first layer, 11 solenoid valve 1309 of first layer, 13 solenoid valve 1402 of first layer, first layer 14 solenoid valves 1405,15 solenoid valve 1406 of first layer, 24 solenoid valve 1708 of first layer, in conjunction with the 6th gas of first layer Pressure sensor 1403, the 6th gas flow sensor 1404 of first layer carry out influence detection of the coating to pipeline transportation.
21 solenoid valve 1703 of first layer, the are closed in detection for the second corrosion-inhibiting coating damage testing section 15, control First layer is opened in one layer of 23 solenoid valve 1707,14 solenoid valve 1405 of first layer, 16 solenoid valve 1407 of first layer, control 22 solenoid valves 1704,18 solenoid valve 1508 of first layer, 15 solenoid valve 1406 of first layer, 20 solenoid valve of first layer 1510, in conjunction with the 7th baroceptor 1504 of first layer, the 7th gas flow sensor 1505 of first layer, the 8th gas of first layer Pressure sensor 1506, the 8th gas flow sensor 1507 of first layer carry out influence detection of the coating to pipeline transportation, improve inspection Survey precision.
The data that baroceptor, gas flow sensor detect are compared by above-mentioned first pipe layer, then are controlled Each solenoid valve turns on and off, and so that different pipeline coatings is detected section and is individually formed gas flow loop, realizes to every pipeline The holiday being arranged in coating detection section is detected, and simulates the detection of the holiday in true pipeline transportation, the dress It is simple to set structure, easy to control reliable, security performance is high, and the testing process of study pipe coating defects is understood convenient for people, is The detection of true pipe coating defects provides the foundation, and improves the reliability of true pipe coating defects detection control, also drops The cost of low holiday maintenance.
The second intake valve and the second air outlet valve are opened in second pipe layer 2, control；Being passed through gas to the second air inlet pipe makes second The 8th baroceptor 701 of layer, the detection of the 8th gas flow sensor 702 of the second layer obtain data, manage separately below to five sections Road defects detection section is detected: detecting section 21 for coating damage, 21 solenoid valve 2703, second of the second layer is closed in control Layer 23 solenoid valve 2707,18 solenoid valve 2506 of the second layer, the 4th solenoid valve 2107 of the second layer, the 5th solenoid valve of the second layer 2203, the 7th solenoid valve 2212 of the second layer, 11 solenoid valve 2306 of the second layer, 15 solenoid valve 2406 of the second layer, control are opened 17 solenoid valve 2502 of the second layer, the first solenoid valve of the second layer 2102, second layer second solenoid valve 2105, second layer third electromagnetism Valve 2106, the 8th solenoid valve 2213 of the second layer, 12 solenoid valve 2307 of the second layer, 16 solenoid valve 2407 of the second layer, the second layer 20 solenoid valves 2507.
Section 22 is detected for pipe damage, 21 solenoid valve 2703 of the second layer, 23 electromagnetism of the second layer are closed in control Valve 2707, the first solenoid valve of the second layer 2102, second layer second solenoid valve 2105, the 8th solenoid valve 2213 of the second layer, the second layer 17 electricity of the second layer is opened in 9th solenoid valve 2302,11 solenoid valve 2306 of the second layer, 15 solenoid valve 2406 of the second layer, control Magnet valve 2502,18 solenoid valve 2506 of the second layer, second layer third solenoid valve 2106, the 4th solenoid valve 2107, second of the second layer Layer the 5th solenoid valve 2203, the 6th solenoid valve 2211 of the second layer, the 7th solenoid valve 2212 of the second layer, 12 solenoid valve of the second layer 2307,16 solenoid valve 2407 of the second layer, 20 solenoid valve 2507 of the second layer.
Section 23 is detected for pipeline crack, 21 solenoid valve 2703 of the second layer, 23 electromagnetism of the second layer are closed in control Valve 2707, the first solenoid valve of the second layer 2102, second layer third solenoid valve 2106, the 6th solenoid valve 2211 of the second layer, the second layer 17 electricity of the second layer is opened in 12 solenoid valves 2307,13 solenoid valve 2402 of the second layer, 15 solenoid valve 2406 of the second layer, control Magnet valve 2502,18 solenoid valve 2506 of the second layer, the 4th solenoid valve 2107 of the second layer, the 7th solenoid valve 2212, second of the second layer Layer the 8th solenoid valve 2213, the 9th solenoid valve 2302 of the second layer, ten solenoid valve 2305 of the second layer, 11 solenoid valve of the second layer 2306,16 solenoid valve 2407 of the second layer, 20 solenoid valve 2507 of the second layer.
It perforates for corrosive pipeline and detects section 24,21 solenoid valve 2703 of the second layer, the second layer 23 are closed in control Solenoid valve 2707, the first solenoid valve of the second layer 2102, second layer third solenoid valve 2106, the 7th solenoid valve 2212 of the second layer, The second layer 17 is opened in two layer of ten solenoid valve 2305,16 solenoid valve 2407 of the second layer, 18 solenoid valve 2505 of the second layer, control Solenoid valve 2502,18 solenoid valve 2506 of the second layer, the 4th solenoid valve 2107 of the second layer, the 8th solenoid valve 2213 of the second layer, Two layer of 12 solenoid valve 2307,11 solenoid valve 2306 of the second layer, 13 solenoid valve 2402 of the second layer, 14 solenoid valve of the second layer 2405,15 solenoid valve 2406 of the second layer, 20 solenoid valve 2507 of the second layer.
To pipeline pit detection section 25,17 solenoid valve 2502 of the second layer, 23 solenoid valve of the second layer are closed in control 2707,21 solenoid valve of the second layer is opened in 16 solenoid valve 2407 of the second layer, 14 solenoid valve 2405 of the second layer, control 2703,18 solenoid valve 2505 of the second layer, 15 solenoid valve 2406 of the second layer, 20 solenoid valve 2507 of the second layer.
The data that baroceptor, gas flow sensor detect are compared by above-mentioned second pipe layer 2, then are controlled Each solenoid valve turns on and off, and so that different pipeline defect detection sections is individually formed gas flow loop, realizes to each pipe Road defects detection section is detected, and has been carried out carrying out flaw detection to pipeline, has been simulated in true pipeline transportation to pipeline defect detection Section detection, the apparatus structure is simple, and easy to control reliable, security performance is high, understands study to pipeline coatings and pipe convenient for people The testing process of road damage, provides the foundation for true pipe detection, improves the reliability of pipe control, also reduce pipeline The cost of maintenance.
Third pipe layers 3, open third intake valve and third air outlet valve, then by a leakage point P on the 5th pipelineXIt beats It opens, air accumulator putting in blast, compares the 7th baroceptor 3701 of third layer and the 8th baroceptor 3705 of third layer, third The data of layer the 7th gas flow sensor 3702 and the 8th gas flow sensor 3706 of third layer are assert if inconsistent Leaked for the leakage point, in conjunction with Fig. 6, determine the position of leakage point: assuming that from third air inlet pipe to third escape pipe away from From for L, leakage point PXDistance apart from the 7th baroceptor 3701 of third layer is unknown number X, and the transmission speed of pressure wave is V, gas flow rate V0, pressure wave passes to the 7th baroceptor 3701 of third layer and the 8th baroceptor 3705 of third layer Time is respectively t1, t2, thenThe 7th baroceptor 3701 of third layer, the 8th gas of third layer 3705 pressure wave of pressure sensor reach time difference bePressure wave under normal circumstances About 1050 meter per second of spread speed, the flow velocity of gas about 1.5-3 meter per second, therefore the gas flow rate V in formula above0It can ignore Disregard, that is, is reduced toIt can then acquire:
The distance L of third air inlet pipe to third escape pipe is it is known that pressing in gas in above formula The spread speed V of Reeb can be obtained by actual measurement.Obtain leakage point PXPosition after, it is first determined the leakage class of the leakage point Type, then turning on and off by control solenoid valve, make leakage point PXIndependent gas flow loop is formed, the gas flow loop is obstructed Other leakage points are crossed, detect that this is let out in conjunction with the baroceptor and gas flow sensor that the leakage point downstream is arranged in Leak source PXLeakage rate, realize the monitoring and detection that leak pipeline gas.
The detection of six pipe leakage points is successively introduced with monitoring content below: monitoring and the first stomata leakage point of detection 3101, when the second stomata leakage point 3102,24 solenoid valve 3708 of third layer, 19 solenoid valve of third layer are closed in control 3506,18 solenoid valve 3505 of third layer, the 5th solenoid valve 3202 of third layer, the 7th solenoid valve 3206 of third layer, third layer ten One solenoid valve 3306,15 solenoid valve 3406 of third layer open 22 solenoid valve 3704 of third layer, the first solenoid valve of third layer 3103, third layer second solenoid valve 3108, third layer third solenoid valve 3109, the 8th solenoid valve 3207 of third layer, third layer ten Two solenoid valves 3307,16 solenoid valve 3407 of third layer, 20 solenoid valve 3507 of third layer, in conjunction with the first air pressure transmission of third layer Sensor 3104 and third layer first gas flow sensor 3105 or the second baroceptor of third layer 3106, third layer second Gas flow sensor 3107 carries out the leakage rate for further measuring gas, improves measuring accuracy.
When the monitoring of valve leak point is with detection valve leak point 3201, control closing 24 solenoid valve 3708 of third layer, 18 solenoid valve 3505 of third layer, the first solenoid valve of third layer 3103, third layer second solenoid valve 3108, the 8th electromagnetism of third layer Valve 3207, the 9th solenoid valve 3302 of third layer, 11 solenoid valve 3306 of third layer, 15 solenoid valve 3406 of third layer open the Three layer of 22 solenoid valve 3704,19 solenoid valve 3506 of third layer, the 4th solenoid valve 3110 of third layer, third layer third electromagnetism Valve 3109, the 5th solenoid valve 3202 of third layer, the 6th solenoid valve 3205 of third layer, the 7th solenoid valve 3206 of third layer, third layer 12 solenoid valves 3307,16 solenoid valve 3407 of third layer, 20 solenoid valve 3507 of third layer, in conjunction with third layer third air pressure Sensor 3203 and third layer third gas flow sensor 3204 further measure the leakage rate of gas, and it is accurate to improve measurement Degree.
Monitoring is broken leakage point with detection of broken leakage point 3301, and 24 solenoid valve 3708 of third layer, the are closed in control Three layer of 18 solenoid valve 3505, the first solenoid valve of third layer 3103, third layer third solenoid valve 3109, the 6th solenoid valve of third layer 3205,12 solenoid valve 3307 of third layer, 13 solenoid valve 3402 of third layer, 15 solenoid valve 406 of third layer open third layer 22 solenoid valves 3704,19 solenoid valve 3506 of third layer, the 4th solenoid valve 3110 of third layer, the 8th solenoid valve of third layer 3207, the 7th solenoid valve 3206 of third layer, the 9th solenoid valve 3302 of third layer, ten solenoid valve 3305 of third layer, third layer 11 Solenoid valve 3306,16 solenoid valve 3407 of third layer, 20 solenoid valve 3507 of third layer, in conjunction with the 4th air pressure sensing of third layer Device 3303, the 4th gas flow sensor 3304 of third layer further measure the leakage rate of gas, improve measuring accuracy.
3401 weld leakage point of weld leakage point is detected, 24 solenoid valve 3708 of third layer, third layer ten are closed in control Eight solenoid valves 3505, the first solenoid valve of third layer 3103, third layer third solenoid valve 3109, the 7th solenoid valve 3206 of third layer, Ten solenoid valve 3305 of third layer, 17 solenoid valve 3502 of third layer, 16 solenoid valve 3407 of third layer open third layer 22 Solenoid valve 3704,19 solenoid valve 3506 of third layer, the 4th solenoid valve 3110 of third layer, the 8th solenoid valve 3207 of third layer, Three layer of 12 solenoid valve 3307,11 solenoid valve 3306 of third layer, 13 solenoid valve 3402 of third layer, 14 solenoid valve of third layer 3405,15 solenoid valve 3406 of third layer, 20 solenoid valve 3507 of third layer, in conjunction with the 5th baroceptor of third layer 3403, the 5th gas flow sensor 3404 of third layer further measures the leakage rate of gas, improves measuring accuracy.
Monitoring closes 22 solenoid valve 3704 of third layer, third layer 24 with detection Crack Leakage point 3501, control 18 solenoid valve of third layer is opened in solenoid valve 3708,16 solenoid valve 3407 of third layer, 14 solenoid valve 3405 of third layer, control 3505,17 solenoid valve 3502 of third layer, 15 solenoid valve 3406 of third layer, 20 solenoid valve 3507 of third layer, in conjunction with Three layer of the 6th baroceptor 3503, the 6th gas flow sensor 3504 of third layer carry out the leakage for further measuring gas Amount improves measuring accuracy.
The data that baroceptor, gas flow sensor detect are compared by the platform, control each solenoid valve Turn on and off, so that different pipe leakage section is formed individual air stream circuit, realize the position to each pipe leakage point Monitoring and the size of pipe leakage amount is detected, simulate the leak detection and monitoring in true pipeline transportation, fill It is simple to set structure, easy to control reliable, security performance is high, understands study line leakage and testing process convenient for people, is The monitoring and detection of true pipe leakage provide the foundation, and improve the reliability of true pipe leakage control, also reduce true The cost of real pipe leakage maintenance.
L shape pipe layers 4 are passed through liquid into input channel 45 in the present embodiment, are packed into water tank enough Water controls each solenoid valve, makes one section of formation water flow circuits in four sections long defeated pipeline defect detection section, opens water pump, passes through The 7th pressure sensor 4501 of " L " layer, the data of the 8th pressure sensor 4601 of " L " layer or comparison " L " layer the 7th is compared to flow Whether quantity sensor 4502 and the data of the 8th flow sensor 4602 of " L " layer are consistent, if unanimously, long conveyance pipe defect inspection It is intact to survey section, leakage defect is not present, then compare the parameter of the first potential detector, the second potential detector and reference voltage, And the testing result of piping anti-corrosive coating detector is combined, it can detecte out whether pipeline occurs coating stripping or coating The size of breakage and coating stripping and coating damage.And the first potential detector, the current potential of the second potential detector and ginseng Can also determine whether cathode protection device is intact than voltage-contrast.If cathodic protection is good within the scope of reference potential, if It not within the scope of reference potential, then needs to dig out cathode protection device, is checked or replaced, realize the protection to pipeline.
When detecting to coating damage detection section 41, the 4th solenoid valve 4110 of " L " layer, the 5th electricity of " L " layer are closed in control Magnet valve 4202, the 7th solenoid valve 4206 of " L " layer, 11 solenoid valve 4306 of " L " layer, 14 solenoid valve 4408 of " L " layer, control are opened 18 solenoid valve 4504 of " L " layer, the first solenoid valve of " L " layer 4103, " L " layer second solenoid valve 4108, " L " layer third solenoid valve 4109, the 8th solenoid valve 4207 of " L " layer, 12 solenoid valve 4307 of " L " layer, 15 solenoid valve 4409 of " L " layer, 19 electricity of " L " layer Magnet valve 4604, " L " layer is in conjunction with first pressure sensor 4104, " L " layer first flow sensor 4105, " L " layer second pressure Sensor 4106, " L " layer second flow sensor 4107 further detect the flow and pressure of the interior liquid of pipeline, mention High measurement accuracy.
When detecting to coating stripping detection section 42, the first solenoid valve of " L " layer 4103, the second electricity of " L " layer are closed in control Magnet valve 4108, the 8th solenoid valve 4207 of " L " layer, the 9th solenoid valve 4302 of " L " layer, 11 solenoid valve 4306 of " L " layer, " L " layer ten 18 solenoid valve 4504 of " L " layer, the 4th solenoid valve 4110 of " L " layer, " L " layer third solenoid valve are opened in four solenoid valves 4408, control 4109, the 5th solenoid valve 4202 of " L " layer, the 6th solenoid valve 4205 of " L " layer, the 7th solenoid valve 4206 of " L " layer, 12 electricity of " L " layer Magnet valve 4307,15 solenoid valve 4409 of " L " layer, 19 solenoid valve 4604 of " L " layer, in conjunction with " L " layer third pressure sensor 4203, " L " layer third flow sensor 4204 further detects the flow and pressure of the interior liquid of pipeline, improves measurement Accuracy.
When detecting to valve leak detection section 43, the first solenoid valve of " L " layer 4103, " L " layer third electricity are closed in control Magnet valve 4109, the 6th solenoid valve 4205 of " L " layer, 13 solenoid valve 4403 of " L " layer, 12 solenoid valve 4307 of " L " layer, " L " layer ten 18 solenoid valve 4504 of " L " layer, the 4th solenoid valve 4110 of " L " layer, the 8th solenoid valve of " L " layer are opened in four solenoid valves 4408, control 4207, the 7th solenoid valve 4206 of " L " layer, the 9th solenoid valve 4302 of " L " layer, ten solenoid valve 4305 of " L " layer, 11 electromagnetism of " L " layer Valve 4306,16 solenoid valve 4409 of " L " layer, 19 solenoid valve 4604 of " L " layer, in conjunction with the 4th pressure sensor 4303 of " L " layer, The 4th flow sensor 4304 of " L " layer further detects the flow and pressure of the interior liquid of pipeline, and it is accurate to improve measurement Degree.
When detecting for stomata leak detection section 44, the first solenoid valve of " L " layer 4103, " L " layer third are closed in control Solenoid valve 4109, the 7th solenoid valve 4206 of " L " layer, ten solenoid valve 4305 of " L " layer, 16 solenoid valve 4409 of " L " layer, control are opened 18 solenoid valve 4504 of " L " layer, the 4th solenoid valve 4110 of " L " layer, the 8th solenoid valve 4207 of " L " layer, 12 solenoid valve of " L " layer 4307,11 solenoid valve 4306 of " L " layer, 13 solenoid valve 4403 of " L " layer, 14 solenoid valve 4408 of " L " layer, 19 electricity of " L " layer Magnet valve 4604, and combine the 5th pressure sensor 4404 of " L " layer, the 5th flow sensor 4405 of " L " layer, the 6th pressure of " L " layer Sensor 4406, the 6th flow sensor 4407 of " L " layer further detect the flow and pressure of the interior liquid of pipeline, mention High measurement accuracy.When being passed through gas into input channel 45, principle is the same, and therefore not to repeat here.
4 structure of L shape pipe layers is simple, and easy to control reliable, security performance is high, is conducive to people's understanding study pipeline and lets out Leakage monitoring and testing process, impart knowledge to students to student convenient for in-pplnt training special pipeline testing staff and school, for true pipe The monitoring and detection of road leakage provide the foundation, and improve the reliability of true pipe protection, while also reducing true pipeline The cost of maintenance.
By above-mentioned design, oil-gas pipeline test experience platform occupied area is small, compact-sized, is easy to impart knowledge to students, pipeline mould Quasi- detection accuracy is high, good reliability, provides the foundation for the monitoring and detection of true pipe leakage, and the apparatus structure is simple, peace Full performance is high, long service life, understands study line leakage and testing process convenient for people, improves true pipe leakage The reliability of control also reduces the cost of true pipe leakage maintenance, convenient for training special pipeline testing staff and school Experimental teaching is carried out to student.

Claims (10)

1. a kind of oil-gas pipeline defects detection and monitoring experiment porch, which is characterized in that including oil-gas pipeline test experience platform, The pipe detection experiment porch is equipped with a three-layer pipe road supporting mechanism, and the three-layer pipe road supporting mechanism is from bottom to top successively Equipped with first pipe layer (1), second pipe layer (2), third pipe layers (3), it is additionally provided with by three-layer pipe road supporting mechanism L shape pipe layers (4) are all covered with soil, the first pipe layer on the first pipe layer (1) and L shape pipe layers (4) (1), second pipe layer (2), third pipe layers (3), L shape pipe layers (4) inlet end with the gas outlet of air compressor Connection；
The first pipe layer (1) is anticorrosion coating on pipeline detection layers, and the first pipe layer (1) is examined including five segment pipe coatings Survey section, respectively the first corrosion-inhibiting coating damage testing section (11), the first corrosion-inhibiting coating scratch detection section (12), corrosion-inhibiting coating removing Detect section (13), the second corrosion-inhibiting coating scratch detection section (14), the second corrosion-inhibiting coating damage testing section (15)；
The second pipe layer (2) is pipeline coatings and ontology damage check layer, and the second pipe layer (2) includes five segment pipes Defects detection section, respectively coating damage detect section (21), pipe damage detection section (22), pipeline crack detection section (23), pipe Road corrosion failure detects section (24), pipeline pit detection section (25)；
The third pipe layers (3) are pipeline gas leak detection layer, and the third pipe layers (3) include that five segment pipe gases are let out Leak detection section, respectively stomata leak detection section (31), valve leak detection section (32), fracture leak detection section (33), weld seam Leak detection section (34), Crack Leakage detection section (35)；
The L shape pipe layers (4) are long distance pipeline integrity detection layer, whole L-shaped, L shape pipe layers (4) packet Include four sections long defeated pipeline defect detection section, respectively long distance pipeline coating damage detection section (41), the inspection of long distance pipeline coating stripping Survey section (42), long distance pipeline valve leak detects section (43), long distance pipeline stomata leak detection section (44)；
First pipe layer (1), which simulates, detects anticorrosion coating on pipeline, and second pipe layer (2) simulates pipeline coatings and sheet Bulk damage detection, third pipe layers (3) simulate pipeline gas leak detection, and it is complete that L shape pipe layers (4) simulate long distance pipeline Property detection, by the way that defect point is arranged in the first, second, third pipe layers, L shape pipe layers, simulate the pipeline gas on pipeline Body leakage defect, corrosion-inhibiting coating defect, pipeline body defects.
2. a kind of oil-gas pipeline defects detection according to claim 1 and monitoring experiment porch, which is characterized in that five sections of institutes The inlet end for stating pipeline coatings detection section is communicated with the first air inlet pipe, and first air inlet pipe goes out with the air compressor Port communicates, and the outlet side of five sections of pipeline coatings detection sections is communicated with the first escape pipe；In first corrosion-inhibiting coating Damage testing section (11), the first corrosion-inhibiting coating scratch detection section (12) outer surface are coated with clinkery epoxy powder, described second Corrosion-inhibiting coating scratch detection section (14), the second corrosion-inhibiting coating damage testing section (15) outer surface be coated with polyethylene anticorrosive coating, Corrosion-inhibiting coating removing detection section (13) is formed by connecting by External fusion bonded epoxy coating section and polyethylene coating section, described molten It ties epoxy powder coating section outer surface and is coated with clinkery epoxy powder, be coated with polyethylene in polyethylene coating section outer surface Erosion resistant coating；
The inlet end of five sections of pipeline defect detection sections is communicated with the second air inlet pipe, second air inlet pipe and the air The gas outlet of compressor communicates, and the outlet side of five sections of pipeline defect detection sections is communicated with the second escape pipe；In the painting Be coated with clinkery epoxy powder on layer damage testing section (21) outer surface, pipe damage detection section (22) include apply interval and Uncoated section, clinkery epoxy powder is coated in the painting interval outer surface of pipe damage detection section (22)；
The inlet end of five sections of pipeline gas leak detection sections is communicated with third air inlet pipe, the third air inlet pipe with it is described The gas outlet of air compressor communicates, and the outlet side of five sections of pipeline gas leak detection sections is communicated with third escape pipe；
The input port of four sections of long conveyance pipe defect detection sections is communicated with input channel, the input channel and the air The gas outlet of compressor or exit of pump connection, the delivery outlet of four sections of long conveyance pipe defects detection sections is and output channel It communicates.
3. a kind of oil-gas pipeline defects detection according to claim 2 and monitoring experiment porch, which is characterized in that five sections of institutes It states pipeline coatings detection section concatenate form first pipe at random, which is circulating line, on the inside of the first pipe It is equipped with second pipe in parallel, the public connecting end of five sections of pipeline coatings detection sections between any two is connected to a first layer One end of pipeline connects, totally five first layer connecting pipes, and the other end of five articles of first layer connecting pipes is with described the The connection of two pipelines, five first layer connecting pipes are successively are as follows: the first connecting pipe of first layer (161), first layer second connect It threads a pipe (162), first layer third connecting pipeline (163), the 4th connecting pipe (164) of first layer, the 5th communicating pipe of first layer Road (165), first pipe and second pipe between adjacent two first layer connecting pipes correspond；
First corrosion-inhibiting coating damage testing section (11) is equipped with the first corrosion-inhibiting coating damage testing point (1101), the second corrosion-inhibiting coating The upstream of damage testing point (1102), the first corrosion-inhibiting coating damage testing point (1101) is equipped with the first solenoid valve of first layer (1103), the downstream of the first corrosion-inhibiting coating damage testing point (1101) is successively arranged the first baroceptor of first layer (1104), first layer first gas flow sensor (1105), the second corrosion-inhibiting coating damage testing point (1102), first layer second Baroceptor (1106), first layer second gas flow sensor (1107), first layer second solenoid valve (1108), described The public connecting end and the first layer first of first corrosion-inhibiting coating damage testing section (11) and next segment pipe coating detection section One end of connecting pipe (161) connects, and first layer third solenoid valve is equipped on the first connecting pipe of first layer (161) (1109), the 4th solenoid valve of first layer is equipped on the corresponding second pipe of the first corrosion-inhibiting coating damage testing section (11) (1110)；
The first corrosion-inhibiting coating scratch detection section (12) includes the first corrosion-inhibiting coating scratch detection point (1201), and described first is anti- The upstream of rotten coating scratch detection point (1201) is equipped with the 5th solenoid valve (1202) of first layer, in the first corrosion-inhibiting coating scratch The downstream of test point (1201) is equipped with first layer third baroceptor (1203), first layer third gas flow sensor (1204), the 6th solenoid valve (1205) of first layer is applied in the first corrosion-inhibiting coating scratch detection section (12) and next segment pipe The public connecting end of layer detection section is connected with one end of the second connecting pipe of first layer (162), is connected in the first layer second Pipeline (162) is equipped with the 7th solenoid valve (1206) of first layer, corresponding in the first corrosion-inhibiting coating scratch detection section (12) Second pipe is equipped with the 8th solenoid valve (1207) of first layer；
The External fusion bonded epoxy coating section of corrosion-inhibiting coating removing detection section (13) is equipped with the removing detection of the first corrosion-inhibiting coating Point (1301), the 9th solenoid valve (1302) of first layer, the 4th baroceptor (1303) of first layer, the 4th gas flow of first layer Sensor (1304), the 9th solenoid valve (1302) of the first layer setting remove test point (1301) in first corrosion-inhibiting coating Upstream, the 4th baroceptor (1303) of first layer, the 4th gas flow sensor (1304) of first layer be arranged in institute State the downstream of the first corrosion-inhibiting coating removing test point (1301)；The polyethylene coating section of corrosion-inhibiting coating removing detection section (13) It is equipped with the second corrosion-inhibiting coating and removes test point (1305), the 5th baroceptor (1306) of first layer, the 5th gas of first layer Flow sensor (1307), ten solenoid valve of first layer (1308), second corrosion-inhibiting coating remove test point (1305), first layer 5th baroceptor (1306), the 5th gas flow sensor (1307) of first layer, ten solenoid valve of first layer (1308) are successively It is arranged in the downstream of the 4th gas flow sensor (1304) of first layer；The corrosion-inhibiting coating remove detection section (13) with The public connecting end of next segment pipe coating detection section is connected with one end of first layer third connecting pipeline (163), and described first The other end of layer third connecting pipeline (163) is connect with the second pipe, on the first layer third connecting pipeline (163) Equipped with 11 solenoid valve of first layer (1309), the corrosion-inhibiting coating removing detects section (13) corresponding second pipe and is equipped with first 12 solenoid valve of layer (1310)；
Second corrosion-inhibiting coating scratch detection point (1401) is set on the second corrosion-inhibiting coating scratch detection section (14), described The upstream of 2 corrosion-inhibiting coating scratch detection points (1401) is equipped with 13 solenoid valve of first layer (1402), and second corrosion-inhibiting coating is drawn The downstream of trace test point (1401) is successively arranged the 6th baroceptor (1403) of first layer, the 6th gas flow of first layer sensing Device (1404), 14 solenoid valve of first layer (1405) are applied in the next segment pipe of the second corrosion-inhibiting coating scratch detection section (14) The public connecting end of layer detection section is connected with one end of the 4th connecting pipe (164) of first layer, the 4th communicating pipe of first layer The other end in road (164) is connect with the second pipe, and first layer ten is equipped on the 4th connecting pipe (164) of first layer Five solenoid valves (1406) are equipped with first layer 16 on the corresponding second pipe of the second corrosion-inhibiting coating scratch detection section (14) Solenoid valve (1407)；
The second corrosion-inhibiting coating damage testing section (15) is equipped with third corrosion-inhibiting coating damage testing point (1501), the 4th anti-corrosion Coating damage test point (1502) is equipped with 17 electricity of first layer in the upstream of the third corrosion-inhibiting coating damage testing point (1501) Magnet valve (1503) is successively arranged the 7th air pressure sensing of first layer in the downstream of the third corrosion-inhibiting coating damage testing point (1501) Device (1504), the 7th gas flow sensor (1505) of first layer, the 4th corrosion-inhibiting coating damage testing point (1502), first layer Eight baroceptors (1506), the 8th gas flow sensor (1507) of first layer, 18 solenoid valve of first layer (1508), in institute State the public connecting end and the first layer the of the second corrosion-inhibiting coating damage testing section (15) and next segment pipe coating detection section One end of five connecting pipes (165) connects, and the other end and the second pipe of the 5th connecting pipe (165) of first layer connect It connects, 19 solenoid valve of first layer (1509) is equipped on the 5th connecting pipe (165) of first layer, applied in second anti-corrosion The corresponding second pipe of layer damage testing section (15) is equipped with 20 solenoid valve of first layer (1510)；
First air inlet pipe is arranged on the second corrosion-inhibiting coating damage testing section (15), and the first escape pipe setting exists On the corresponding second pipe of the second corrosion-inhibiting coating damage testing section (15), the first air inlet is equipped in first air inlet pipe Valve, the 9th baroceptor (1701) of first layer, the 9th gas flow sensor (1702) of first layer, in first air inlet pipe The upstream of junction is equipped with 21 solenoid valve of first layer (1703), is equipped with first layer 20 in the downstream of first air inlet pipe Two solenoid valves (1704) are equipped with the first air outlet valve, ten baroceptor of first layer (1705) and the on first escape pipe One layer of ten gas flow sensor (1706) is equipped with 23 solenoid valve of first layer in the upstream of first escape pipe junction (1707), 24 solenoid valve of first layer (1708) is equipped in the downstream of first escape pipe；
At least one first spare interface, at least one first safety are respectively equipped in the first pipe and the second pipe Valve, at least one first erosion resistant coating condition detection instrument, the first pipe and the second pipe arranged in parallel are in iron groove Interior, the distance between the first pipe and the second pipe are 200mm.
4. a kind of oil-gas pipeline defects detection according to claim 2 and monitoring experiment porch, which is characterized in that five sections of institutes It states pipeline defect detection section and concatenates at random and form third pipeline, which is circulating line, in the third insides of pipes It is equipped with the 4th pipeline parallel, clinkery epoxy powder, five sections of defect of pipeline inspections are coated on the 4th pipeline external surface It surveys the public connecting end of section between any two to connect with one end of a second layer connecting pipe, totally five second layer communicating pipes Road, the other end of five articles of second layer connecting pipes are connected to the 4th pipeline, five second layer connecting pipe difference Are as follows: the first connecting pipe of the second layer (261), the second connecting pipe of the second layer (262), second layer third connecting pipeline (263), the Two layer of the 4th connecting pipe (264), the 5th connecting pipe (265) of the second layer, the third between adjacent two connecting pipes Pipeline and the 4th pipeline correspond；
Coating damage detection section (21) includes coating damage test point (2101), in the coating damage test point (2101) Upstream is equipped with the first solenoid valve of the second layer (2102), is successively arranged the second layer in the downstream of the coating damage test point (2101) First baroceptor (2103), second layer first gas flow sensor (2104), second layer second solenoid valve (2105), The first communicating pipe of public connecting end and the second layer of the coating damage detection section (21) and next pipeline defect detection section The one end in road (261) connects, and second layer third solenoid valve (2106) is equipped on the first connecting pipe of the second layer (261), in institute It states corresponding 4th pipeline of coating damage detection section (21) and is equipped with the 4th solenoid valve (2107) of the second layer；
The painting interval of pipe damage detection section (22) is equipped with coating stripping test point (2201), coating Pinhole point (2202), the 5th solenoid valve (2203) of the second layer, the coating stripping are equipped in the upstream of the coating stripping test point (2201) Downstream from test point (2201) is equipped with the second baroceptor of the second layer (2204), second layer second gas flow sensor (2205), coating Pinhole point (2202), second layer third baroceptor (2206), second layer third gas flow sensing Device (2207), the downstream of the second layer third gas flow sensor (2207) are the nothing that the pipe damage detects section (22) Interval is applied, uncoated section in pipe damage detection section (22) is upper equipped with pipeline scratch detection point (2208), in the pipe The upstream of road scratch detection point (2208) is the painting interval that the pipe damage detects section (22), the pipeline scratch detection point (2208) downstream is the 4th baroceptor (2209) of the second layer, the 4th gas flow sensor (2210) of the second layer, second Layer the 6th solenoid valve (2211), the pipe damage detection section (22) and next pipeline defect detection section public connecting end with One end of second connecting pipe of the second layer (262) is connected to, the other end of second connecting pipe of the second layer (262) and institute The connection of the 4th pipeline is stated, the 7th solenoid valve (2212) of the second layer is equipped on second connecting pipe of the second layer (262), in institute It states corresponding 4th pipeline of pipe damage detection section (22) and is equipped with the 8th solenoid valve (2213) of the second layer；
Pipeline crack detection section (23) includes pipeline crack test point (2301), in the pipeline crack test point (2301) Upstream be equipped with the 9th solenoid valve (2302) of the second layer, be equipped with the second layer the in the downstream of the pipeline crack test point (2301) Five baroceptors (2303), the 5th gas flow sensor (2304) of the second layer, ten solenoid valve of the second layer (2305), described The public connecting end and the second layer third connecting pipeline of pipeline crack detection section (23) and next pipeline defect detection section (263) one end connection, the other end of the second layer third connecting pipeline (263) is connected to the 4th pipeline, described Second layer third connecting pipeline (263) is equipped with 11 solenoid valve of the second layer (2306), detects section (23) in the pipeline crack Corresponding 4th pipeline is equipped with 12 solenoid valve of the second layer (2307)；
Corrosive pipeline perforation detection section (24) includes corrosive pipeline perforation test point (2401), is perforated in the corrosive pipeline The upstream of test point (2401) is equipped with 13 solenoid valve of the second layer (2402), in corrosive pipeline perforation test point (2401) Downstream is equipped with the 6th baroceptor (2403) of the second layer, the 6th gas flow sensor (2404) of the second layer, the second layer 14 Solenoid valve (2405), the public connecting end and second of corrosive pipeline perforation detection section (24) and next pipeline defect detection section One end connection of the 4th connecting pipe (264) of layer, the other end of the 4th connecting pipe (264) of the second layer and the 4th pipe Road connection, is equipped with 15 solenoid valve of the second layer (2406) on the 4th connecting pipe (264) of the second layer, rotten in the pipeline It detects section (24) corresponding 4th pipeline and is equipped with 16 solenoid valve of the second layer (2407) in eating thrown hole；
The pipeline pit detection section (25) includes pipe surface pit detection point (2501), the pipe surface pit detection point (2501) upstream is equipped with 17 solenoid valve of the second layer (2502), sets in the downstream of the pipe surface pit detection point (2501) There are the 7th baroceptor (2503) of the second layer, the 7th gas flow sensor (2504) of the second layer, 18 solenoid valve of the second layer (2505), connect in the public connecting end and the second layer the 5th of the pipeline pit detection section (25) and next pipeline defect detection section It threads a pipe one end connection of (265), the other end of the 5th connecting pipe (265) of the second layer is connected to the 4th pipeline, 18 solenoid valve of the second layer (2506) is equipped on the 5th connecting pipe (265) of the second layer, in the pipeline pit detection Corresponding 4th pipeline of section (25) is equipped with 20 solenoid valve of the second layer (2507)；
Second air inlet pipe is arranged on the pipeline pit detection section (25), and the second air inlet is equipped in the air inlet pipe Valve, the 8th baroceptor (2701) of the second layer, the 8th gas flow sensor (2702) of the second layer, second air inlet pipe with The upstream of the third pipeline junction is equipped with 21 solenoid valve of the second layer (2703), second air inlet pipe and the third The downstream of pipeline junction is equipped with 22 solenoid valve of the second layer (2704)；
Second escape pipe is arranged on corresponding 4th pipeline of the pipeline pit detection section (25), in second outlet Pipe is equipped with the second air outlet valve, the 9th baroceptor (2705) of the second layer, the 9th gas flow sensor (2706) of the second layer, It is equipped with 23 solenoid valve of the second layer (2707) in the upstream of second escape pipe and the 4th pipeline junction, described The downstream of second escape pipe and the 4th pipeline junction is equipped with 24 solenoid valve of the second layer (2708)；
At least one second spare interface, at least one second peace are respectively equipped on the third pipeline and the 4th pipeline Full valve, at least one second erosion resistant coating condition detection instrument, at least one second ultrasonic metal inspection instrument, at least one second HCC-24 magnetoresistance method calibrator.
5. a kind of oil-gas pipeline defects detection according to claim 2 and monitoring experiment porch, which is characterized in that five sections of institutes It states pipeline gas leak detection section and concatenates the 5th pipeline of formation at random, the 5th pipeline is circulating line, in the 5th pipe Be equipped with the 6th pipeline on the inside of road parallel, the public connecting end of five sections of pipeline gas leak detection sections between any two with one One end of third layer connecting pipe is connected to, and totally five third layer connecting pipes, the other end of five third layer connecting pipes are equal It is connected to the 6th pipeline, which is respectively as follows: the first connecting pipe of third layer (361), third layer Second connecting pipe (362), third layer third connecting pipeline (363), the 4th connecting pipe (364) of third layer, third layer the 5th Connecting pipe (365), the 5th pipeline and the 6th pipeline between adjacent two articles of connecting pipes correspond；
The stomata leak detection section (31) includes the first stomata leakage point (3101) and the second stomata leakage point (3102), described The upstream of first stomata leakage point (3101) is equipped with the first solenoid valve of third layer (3103), the first stomata leakage point (3101) Downstream be successively arranged the first baroceptor of third layer (3104), third layer first gas flow sensor (3105), second Stomata leakage point (3102), the second baroceptor of third layer (3106), third layer second gas flow sensor (3107), Three layers of second solenoid valve (3108), the public company of the stomata leak detection section (31) and next segment pipe Leakage inspection section It connects end to be connected to one end of first connecting pipe of third layer (361), first connecting pipe of third layer (361) is equipped with Third layer third solenoid valve (3109) is equipped with third layer the 4th on corresponding 6th pipeline of the stomata leak detection section (31) Solenoid valve (3110)；
Valve leak detection section (32) includes valve leak point (3201), and the valve leak point (3201) upstream is equipped with the The downstream of three layer of the 5th solenoid valve (3202), the valve leak point (3201) is successively arranged third layer third baroceptor (3203), third layer third gas flow sensor (3204), the 6th solenoid valve (3205) of third layer, the valve leak detection The one of the public connecting end and second connecting pipe of third layer (362) of section (32) and next segment pipe Leakage inspection section End connection, the 7th solenoid valve (3206) of third layer is equipped on second connecting pipe of third layer (362), is let out in the valve Corresponding 6th pipeline of leak detection section (32) is equipped with the 8th solenoid valve (3207) of third layer；
The fracture leak detection section (33) includes fracture leakage point (3301), and the upstream of fracture leakage point (3301) is equipped with The downstream of the 9th solenoid valve (3302) of third layer, fracture leakage point (3301) is successively arranged the 4th baroceptor of third layer (3303), the 4th gas flow sensor (3304) of third layer, ten solenoid valve of third layer (3305), the fracture leak detection section (33) with one end of the public connecting end of next segment pipe Leakage inspection section and the third layer third connecting pipeline (363) Connection is equipped with 11 solenoid valve of third layer (3306) on the third layer third connecting pipeline (363), leaks in the fracture It detects section (33) corresponding 6th pipeline and is equipped with 12 solenoid valve of third layer (3307)；
Weld leakage detection section (34) includes weld leakage point (3401), and the upstream of the weld leakage point (3401) is equipped with The downstream of 13 solenoid valve of third layer (3402), the weld leakage point (3401) is successively arranged the 5th baroceptor of third layer (3403), the 5th gas flow sensor (3404) of third layer, 14 solenoid valve of third layer (3405), the weld leakage detection The one of the public connecting end and the 4th connecting pipe (364) of third layer of section (34) and next segment pipe Leakage inspection section End connection, 15 solenoid valve of third layer (3406) is equipped on the 4th connecting pipe (364) of third layer, is let out in the weld seam Corresponding 6th pipeline of leak detection section (34) is equipped with 16 solenoid valve of third layer (3407)；
Crack Leakage detection section (35) includes Crack Leakage point (3501), and the upstream of the Crack Leakage point (3501) is equipped with The downstream of 17 solenoid valve of third layer (3502), the Crack Leakage point (3501) is successively arranged the 6th baroceptor of third layer (3503), the 6th gas flow sensor (3504) of third layer, 18 solenoid valve of third layer (3505), the Crack Leakage detection The one of the public connecting end and the 5th connecting pipe (365) of third layer of section (35) and next segment pipe Leakage inspection section End connection, 19 solenoid valve of third layer (3506) is equipped on the 5th connecting pipe (365) of third layer, is let out in the crackle Corresponding 6th pipeline of leak detection section (35) is equipped with 20 solenoid valve of third layer (3507)；
In Crack Leakage detection section (35), the third escape pipe is arranged in the crackle for the third air inlet pipe setting On corresponding 6th pipeline of leak detection section (35), third intake valve, the 7th gas of third layer are equipped in the third air inlet pipe The 7th gas flow sensor (3702) of pressure sensor (3701) and third layer is equipped with third in the upstream of the third air inlet pipe 21 solenoid valve of layer (3703) are equipped with 22 solenoid valve of third layer (3704) in the downstream of the third air inlet pipe, in institute Third escape pipe is stated to pass equipped with third air outlet valve, the 8th baroceptor (3705) of third layer and the 8th gas flow of third layer Sensor (3706) is equipped with 23 solenoid valve of third layer (3707) in the upstream of the third escape pipe, in the third outlet The downstream of pipe is equipped with 24 solenoid valve of third layer (3708)；
At least one third spare interface, at least one third peace are respectively equipped on the 5th pipeline and the 6th pipeline Full valve, at least one third gas leakage detector, the 5th pipeline and the 6th pipeline arranged in parallel are in same level On face.
6. a kind of oil-gas pipeline defects detection according to claim 2 and monitoring experiment porch, which is characterized in that four sections of institutes It states long conveyance pipe defect detection section and concatenates the 7th pipeline of formation at random, be equipped with the 8th pipe in parallel in plane where the 7th pipeline Road (48), the common end connecting pin of four sections of long conveyance pipe defects detection sections between any two with " L " layer connecting pipe One end connection, totally three " L " layer connecting pipes, the other end of three articles of " L " layer connecting pipes and the 8th pipeline (48) Connection, three " L " layer connecting pipes be respectively the first connecting pipe of " L " layer (471), the second connecting pipe of " L " layer (472), " L " layer third connecting pipeline (473), the long conveyance pipe defect detection section separated by three articles of connecting pipes and the 8th pipeline (48) it corresponds；
One end of 7th pipeline is connected to the input channel (45), the other end and the efferent duct of the 7th pipeline Road (46) connection, the 8th pipeline (48) one end are connected to the input channel (45), the 8th pipeline (48) other end It is connected to the output channel (46)；
Polyethylene anticorrosion coating is coated on the 7th pipeline and the 8th pipeline (48) surface, in the 7th pipeline On the first cathode protection device and the first cathodic protection stake are installed, be connected with the first potentiometric detection in the first cathodic protection stake Instrument is equipped with the second cathode protection device and the second cathodic protection stake on the 8th pipeline (48), in second cathode The second potential detector is connected in protection stake；
Coating damage detection section (41) includes first coating breaking point (4101), second coating breaking point (4102), described The upstream of first coating breaking point (4101) is equipped with the first solenoid valve of " L " layer (4103), described to state first coating breaking point (4101) downstream is successively arranged " L " layer first pressure sensor (4104), " L " layer first flow sensor (4105), second Coating damage point (4102), " L " layer second pressure sensor (4106), " L " layer second flow sensor (4107), " L " layer The public connecting end of two solenoid valves (4108), coating damage detection section (41) and the defeated pipeline defect detection section of next segment length with One end of the first connecting pipe of " L " layer (471) is connected to, and " L " layer is equipped on the first connecting pipe of " L " layer (471) Third solenoid valve (4109) is equipped with the 4th electricity of " L " layer on corresponding 8th pipeline (48) of coating damage detection section (41) Magnet valve (4110)；
Coating stripping detection section (42) includes coating stripping point (4201), is set in the upstream of the coating stripping point (4201) There is the 5th solenoid valve (4202) of " L " layer, is equipped with " L " layer third pressure sensor in the downstream of the coating stripping point (4201) (4203), " L " layer third flow sensor (4204), the 6th solenoid valve (4205) of " L " layer, the coating stripping detect section (42) It is connected to one end of the public connecting end of the defeated pipeline defect detection section of next segment length and the second connecting pipe of " L " layer (472), It is equipped with the 7th solenoid valve (4206) of " L " layer on the second connecting pipe of " L " layer (472), detects section in the coating stripping (42) corresponding 8th pipeline (48) is equipped with the 8th solenoid valve (4207) of " L " layer；
Valve leak detection section (43) includes valve leak point (4301), and valve leak point (4301) upstream is equipped with The 9th solenoid valve (4302) of " L " layer, valve leak point (4301) downstream are successively arranged the 4th pressure sensor of " L " layer (4303), the 4th flow sensor (4304) of " L " layer, ten solenoid valve (4305) of " L " layer, valve leak detection section (43) with The public connecting end of next defeated pipeline defect detection section of segment length is connected to one end of " L " the layer third connecting pipeline (473), " L " the layer third connecting pipeline (473) is equipped with 11 solenoid valve (4306) of " L " layer, detects section in the valve leak (43) corresponding 8th pipeline (48) is equipped with 12 solenoid valve (4307) of " L " layer；
The stomata leak detection section (44) includes the first pore leakage point (4401) and the second pore leakage point (4402), described The upstream of first pore leakage point (4401) is equipped with 13 solenoid valve (4403) of " L " layer, the first pore leakage point (4401) Downstream be successively arranged the 5th pressure sensor (4404) of " L " layer, the 5th flow sensor (4405) of " L " layer, the second pore and let out Leak source (4402), the 6th pressure sensor (4406) of " L " layer, the 6th flow sensor (4407) of " L " layer, 14 electromagnetism of " L " layer Valve (4408) is equipped with 15 solenoid valve of " L " layer on corresponding 8th pipeline (48) of the stomata leak detection section (44) (4409)；
The 7th pressure sensor (4501) of " L " layer is equipped on the input channel (45), in " L " layer the 7th pressure sensing Device (4501) downstream is equipped with the 7th flow sensor (4502) of " L " layer, and " L " layer the 8th is equipped on the output channel (46) and is pressed Force snesor (4601) is equipped with the 8th flow sensor of " L " layer in the 8th pressure sensor (4601) downstream of " L " layer (4602), gas or liquid are passed through into the input channel (45)；
Gas, the first input end of the input channel (45) and going out for air compressor are passed through into the input channel (45) Tracheae connection, on the escape pipe be equipped with 16 solenoid valve (4503) of " L " layer, the first output end of the input channel (45) with The input port connection of four sections of long conveyance pipe defects detection sections, described in the second input terminal of the output channel (46) and four sections Long conveyance pipe defect detects the delivery outlet connection of section, the second output terminal of the output channel (46) and the air inlet of air compressor Pipe connection, is equipped with 17 solenoid valve (4603) of " L " layer in the air inlet pipe；
Liquid is passed through into the input channel (45), the first input end of the input channel (45) and the outlet pipe of water pump connect It is logical, 18 solenoid valve (4504) of " L " layer, the first output end of the input channel (45) and four sections of institutes are equipped on the outlet pipe State the input port connection of long conveyance pipe defect detection section, the second input terminal of the output channel (46) and four sections of defeated pipes of length The delivery outlet of road defects detection section is connected to, and the second output terminal of the output channel (46) is connected to the water inlet pipe of water tank, in institute Water inlet pipe is stated equipped with 19 solenoid valve (4604) of " L " layer, the water pump is arranged in water tank；
At least one the 4th pressure reducing valve, at least one the 4th peace are respectively equipped in the 7th pipeline and the 8th pipeline (48) Full valve, at least one the 4th spare interface, at least one the 4th conduit leakage detecting instrument, at least one the 4th pipeline corrosion protection stratiform Condition detector, the 7th pipeline and the 8th pipeline (48) are arranged side by side in organic glass groove, the 7th pipeline Spacing between the 8th pipeline (48) is 500mm, is covered on the 7th pipeline and the 8th pipeline (48) At least soil of 500mm.
7. a kind of oil-gas pipeline defects detection according to claim 2 any one and monitoring experiment porch, feature exist In the first corrosion-inhibiting coating damage testing section (11), the first corrosion-inhibiting coating scratch detection section (12), corrosion-inhibiting coating removing detection Section (13), the second corrosion-inhibiting coating scratch detection section (14), the second corrosion-inhibiting coating damage testing section (15) and be connected in described first into Between tracheae and first escape pipe；
Coating damage detection section (21), pipe damage detection section (22), pipeline crack detection section (23), corrosive pipeline perforation Detection section (24), pipeline pit detection section (25) are simultaneously connected between second air inlet pipe and second escape pipe；
The stomata leak detection section (31), valve leak detection section (32), fracture leak detection section (33), weld leakage detection Section (34), Crack Leakage detection section (35) are simultaneously connected between the third air inlet pipe and the third escape pipe；
Long distance pipeline coating damage detection section (41), long distance pipeline coating stripping detection section (42), long distance pipeline valve are let out Leak detection section (43), long distance pipeline stomata leak detection section (44) are simultaneously connected between the input channel and the output channel.
8. a kind of oil-gas pipeline defects detection described in -7 any one and monitoring experiment porch according to claim 1, feature It is, three-layer pipe road supporting mechanism includes height first layer supporting mechanism incremented by successively, second layer supporting mechanism, third Layer supporting mechanism；
The first layer supporting mechanism includes at least two first support frames of " door " shape disposed in parallel, the first pipe layer (1) it is placed on the first layer supporting mechanism；
The second layer supporting mechanism includes at least two second support frames of " door " shape disposed in parallel, the second pipe layer (2) it is placed on the second layer supporting mechanism；
The third layer supporting mechanism includes at least two " door " shape third support frames disposed in parallel, the third pipe layers (3) it is placed on the third layer supporting mechanism；
First support frame, the second support frame, third support frame are arranged in parallel and height is incremented by successively.
9. a kind of oil-gas pipeline defects detection according to claim 8 and monitoring experiment porch, which is characterized in that the sky Air compressor, water pump, water tank are arranged on the oil-gas pipeline test experience platform, flat in the oil-gas pipeline test experience Power control cabinet is installed on platform.
10. a kind of oil-gas pipeline defects detection according to claim 8 and monitoring experiment porch, which is characterized in that described First pipe, second pipe, third pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline, the 7th pipeline, the 8th pipeline are straight Diameter 76mm, the X80 steel pipe that wall thickness is 5mm.
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