CN209326559U - A kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment - Google Patents
A kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment Download PDFInfo
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- CN209326559U CN209326559U CN201822141509.4U CN201822141509U CN209326559U CN 209326559 U CN209326559 U CN 209326559U CN 201822141509 U CN201822141509 U CN 201822141509U CN 209326559 U CN209326559 U CN 209326559U
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Abstract
The utility model discloses a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipments, including the first measurement vehicle being sequentially coaxially connected in small-bore pipeline from front to back, second measurement vehicle, first signal processing vehicle, second signal handles vehicle, third measures vehicle, power supply transfer, battery car and electromagnetic location vehicle, it is connected between two adjacent car bodies by hose, electromagnetic location vehicle is provided with mileage measurement mechanism far from one end of battery car, ring flange is installed on the input port of small-bore pipeline, ring flange is equipped with the high-pressure air pipe being connected to small-bore pipeline far from one end of small-bore pipeline.The utility model is novel in design, signal processing vehicle assigns between three measurement vehicles, reduce signal conveying length and signal interference, utilize the traveling mileage of mileage measurement mechanism record car body, "-" type car body is pushed using external high pressure gas source, it reduces car body itself and installs driving device consuming electric energy additional, extend the cruising ability of battery car.
Description
Technical field
The utility model belongs to small-bore pipeline inside coating thickness measurement technology field, and in particular to a kind of inner wall of the pipe anti-corrosion
Coat thickness detection equipment.
Background technique
Corrosion-proof technology for pipeline is the guard technology for avoiding pipeline from corroding by pumped (conveying) medium (petroleum, natural gas etc.).It is defeated
Oil, the gas sent has corrosivity, the infringement that these corrosive medias of inner wall of the pipe Long Term Contact can be corroded mostly.Once pipe
Wall be corroded it is excessively thin will can not pressure resistance, or even the perforation that is corroded causes oil, gas leakage, not only makes traffic interruptions, but also can dirt
Environment is contaminated, or even causes fire, damage is brought to the person and property.Because current conveyance conduit is mostly steel, long distance pipeline
Antiseptic project is just more indispensable.But it since steel pipeline investment is huge, is widely used, it is impossible to frequently replacement, then
In its long-time service, anti-corrosion failure can be usually generated.Since there is no antiseptic property, interior erosion resistant coatings for most metallic conduits itself
Once failure, corrosive medium directly etching metal pipe-wall will soon cause medium to be revealed, then to antirust coating in pipeline
Detection is just particularly important.As long as detecting to inner wall of the pipe, the weak link of pipeline internal corrosion is found, targetedly carry out
Antiseptic project in managing, prevents from the corrosion of inner wall of the pipe.Existing detection technique majority is suitable for the inspection of Large Diameter Pipeline inside coating
It surveys, the coating of small diameter tube is detected seldom, and small diameter tube detection robot is limited by the energy content of battery, stroke is less than 800m,
Entire long-distance transport pipes can not be carried out with whole detection.
Utility model content
The technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide a kind of pipeline
Inner wall anti-corrosive coat thickness detection equipment, it is novel in design reasonable, vehicle, the second measurement vehicle, the first signal processing are measured by first
Vehicle, second signal processing vehicle, third measurement vehicle, power supply transfer, battery car and electromagnetic location vehicle sequentially coaxially connect from front to back
It connects, lines up "-" type, signal processing vehicle assigns between three measurement vehicles, reduces signal conveying length and signal interference, utilizes
Mileage measurement mechanism records the traveling mileage of car body, is pushed using external high pressure gas source to "-" type car body, reduces car body
It itself installs driving device additional and expends electric energy, extend the cruising ability of battery car, convenient for promoting the use of.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of 1. inner wall of the pipe corrosion-inhibiting coatings
Thickness detecting equipment, it is characterised in that: including be sequentially coaxially connected in small-bore pipeline from front to back the first measurement vehicle, the
Two measurement vehicles, the first signal processing vehicle, second signal processing vehicle, third measurement vehicle, power supply transfer, battery car and electromagnetic location
Vehicle, is connected by hose between two adjacent car bodies, and electromagnetic location vehicle is provided with mileage measurement machine far from one end of battery car
Structure is equipped with ring flange on the input port of small-bore pipeline, and ring flange is equipped with far from one end of small-bore pipeline and osculum
The high-pressure air pipe of diameter pipeline connection.
Above-mentioned a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment, it is characterised in that: the first measurement vehicle, second
Measurement vehicle and third measurement vehicle include that the measurement car body of hollow structure and setting are used to install laser in measurement car body
The sensor holder of sensor and eddy current sensor, the detection faces outside of laser sensor are provided with the laser being mounted on measurement car body
Shield, the detection faces outside of eddy current sensor are equipped with the vortex protective cover being mounted on measurement car body, laser shield and the whirlpool
The flat face of milling that protective cover forms measurement car body is flowed, the detection faces of laser sensor and the detection faces of eddy current sensor are parallel and equal
Towards the flat face of milling of measurement car body, the laser detection line of laser sensor and the central axes of eddy current sensor are formed by plane and wear
Cross the central axes of measurement car body；
Laser sensor is first laser sensor, second laser sensor or third laser sensor, eddy current sensor
For the first eddy current sensor, second eddy current sensor or third eddy current sensor, first laser sensor and the first currents sensing
Device is arranged in the measurement car body of the first measurement vehicle, and second laser sensor and second eddy current sensor are arranged at the second survey
In the measurement car body for measuring vehicle, third laser sensor and third eddy current sensor are arranged at the measurement car body that third measures vehicle
It is interior, the first plane of the central axes formation of the laser detection line and the first eddy current sensor of first laser sensor, second laser
The second plane that the laser detection line of sensor and the central axes of second eddy current sensor are formed, the laser of third laser sensor
The third plane that the central axes of detection line and third eddy current sensor are formed, first plane, second plane and described
Third plane is mutually 120 °.
A kind of above-mentioned inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment, it is characterised in that: the first signal processing vehicle
It include that the signal processing car body of hollow structure and setting are used to install in signal processing car body with second signal processing vehicle
The amplifier bracket of galvanomagnetic amplifier and signal processing circuit board bracket for installing signal processing circuit board, signal processing vehicle
The USB interface connecting with signal processing circuit board signal output end, the electromagnetism amplification of the first signal processing car are offered on body
Device is connect with the first eddy current sensor and second eddy current sensor, and second signal processing interior galvanomagnetic amplifier and third are vortexed
Sensor connection is integrated on the signal processing circuit board of the first signal processing car for improving first laser sensor and the
First signal conditioning module of the signal of one eddy current sensor acquisition, and for improving second laser sensor and second eddy current
The second signal conditioning module of the signal of sensor acquisition is integrated on the interior signal processing circuit board of second signal processing micro-
The third signal condition of processor module and the signal for improving third laser sensor and the acquisition of third eddy current sensor
Module, the first eddy current sensor are connect by the galvanomagnetic amplifier of the first signal processing car with the first signal conditioning module, the
Two eddy current sensors are connect by the galvanomagnetic amplifier of the first signal processing car with second signal conditioning module, and third vortex passes
Sensor handles interior galvanomagnetic amplifier by second signal and connect with third signal conditioning module, the first signal conditioning module,
Second signal conditioning module and third signal conditioning module are connect with microprocessor module, and SD is connected on microprocessor module
Card memory module.
Above-mentioned a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment, it is characterised in that: the battery car includes battery
Car body and setting are provided with the first cushion in battery car intracorporal battery pack between battery pack and battery car body.
Above-mentioned a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment, it is characterised in that: the power supply transfer includes
Power supply is converted car body and is arranged in power supply transfer body for installing the power conversion module bracket of power conversion module, power supply
It is provided with power switch and reset switch on conversion car body, power switch is connected on the confession between battery pack and power conversion module
In electrical circuit, battery pack is 24V DC power supply, and power conversion module includes that 24V direct current turns 12V DC electricity module, 12V DC
Electricity turns 5V DC power module and 5V direct current turns 3.3V DC power module, and it is straight that laser sensor and eddy current sensor pass through 12V
Galvanic electricity power supply, the first signal conditioning module, second signal conditioning module and third signal conditioning module pass through 5V direct current and supply
Electricity, microprocessor module are STM32F103 microprocessor module by 3.3V powered by direct current, microprocessor module, and reset is opened
It closes and is connected in the current supply circuit that 3.3V direct current is the power supply of STM32F103 microprocessor module.
Above-mentioned a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment, it is characterised in that: the electromagnetic location vehicle includes
Electromagnetic location car body and setting in the intracorporal electromagnetic location module of electromagnetic location vehicle, electromagnetic location module and electromagnetic location car body it
Between be provided with dashpot, electromagnetic location module passes through 3.3V powered by direct current.
Above-mentioned a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment, it is characterised in that: at the measurement car body, signal
The rear and front end that reason car body, power supply convert car body, battery car body and electromagnetic location car body is provided with car bonnet, measures car body, signal
Headstock disk, headstock are provided on front side of processing car body, power supply conversion car body, battery car body and the car bonnet of electromagnetic location car body front end
Disk is the truncated cone-shaped headstock disk of hollow structure, and the front end face diameter of the truncated cone-shaped headstock disk is less than the truncated cone-shaped headstock disk
Rear end face diameter, amount car body, signal processing car body, power supply convert the car bonnet of car body, battery car body and electromagnetic location car body front end
It is installed on the rear end face of the truncated cone-shaped headstock disk, amount car body, signal processing car body, power supply convert car body, battery car body
It is less than the rear end face diameter of the truncated cone-shaped headstock disk with the cross-sectional diameter of electromagnetic location car body, measures car body, signal processing vehicle
The car bonnet rear side that body, power supply convert car body, battery car body and electromagnetic location body rear end is provided with the vehicle of arc hollow structure
Tailstock, the cross-sectional diameter that amount car body, signal processing car body, power supply convert car body, battery car body and electromagnetic location car body are little
In being fixedly installed with leather cup in the cross-sectional diameter of tailstock seat, the truncated cone-shaped headstock disk；It is installed on battery pack and battery car body
Car bonnet between be provided with rubber pad, it is slow that second is provided between the car bonnet installed in electromagnetic location module and electromagnetic location car body
Punching pad.
A kind of above-mentioned inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment, it is characterised in that: mileage measurement mechanism packet
Include the firm banking connecting with electromagnetic location vehicle and setting first stroke measurement wheel on the fixed base, second stroke metering
Wheel and support wheel are provided on firm banking and match with the first ring seat of first stroke measurement wheel cooperation, with second stroke measurement wheel
The second ring seat closed and the third ring seat with support wheel cooperation, first stroke measurement wheel are matched by the first wheel shaft and the first ring seat
It closing, second stroke measurement wheel is cooperated by the second wheel shaft and the second ring seat, and support wheel is cooperated by third wheel shaft and third ring seat,
The first torsional spring connecting with first stroke measurement wheel and the first self-locking spiral shell for blocking the first torsional spring are arranged on first wheel shaft
Mother is arranged with the second torsional spring connecting with second stroke measurement wheel and second self-locking for blocking the second torsional spring on the second wheel shaft
Nut is arranged with the third torsional spring connecting with support wheel and the third self-locking nut for blocking third torsional spring on third wheel shaft,
It is mounted on first stroke measurement wheel and second stroke measurement wheel and connect mileage coding module with microprocessor module.
A kind of above-mentioned inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment, it is characterised in that: the geometry of first ring seat
The interconnecting line of the geometric center point of central point, the geometric center point of second ring seat and the third ring seat forms positive triangle
Shape.
A kind of above-mentioned inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment, it is characterised in that: the first signal condition mould
Block, second signal conditioning module and third signal conditioning module are analog-to-digital conversion module；The dashpot is EVA dashpot,
First cushion is pearl cotton cushion, and the second cushion is EVA cushion.
Compared with the prior art, the utility model has the following advantages:
1, the utility model passes through the first measurement of setting vehicle, the second measurement vehicle, the first signal processing vehicle, second signal processing
Vehicle, third measurement vehicle, power supply transfer, battery car and electromagnetic location vehicle sequentially coaxially connect from front to back, line up "-" type, the
One signal processing vehicle and second signal processing vehicle assign between the second measurement vehicle and third measurement vehicle, pass through the first signal processing
The data of the first measurement vehicle of vehicle processing and the second measurement vehicle acquisition, handle third by second signal processing vehicle and measure vehicle acquisition
Data reduce the data communication distance of the first measurement vehicle and the second measurement vehicle, reduce signal interference, data processing precision is high, just
In popularization and use.
2, the utility model is the first measurement vehicle, the second measurement vehicle, the first letter by setting battery car and power supply transfer
Number processing vehicle, second signal processing vehicle, third measurement vehicle and electromagnetic location vehicle provide the power supply of different voltages, and electric energy supplies
To the acquisition and pretreatment for being used only for data, car body itself is not driven, it is low in energy consumption, it can be achieved that long-time long range
Electric energy supply, extends the cruising ability of battery car, and the movement of car body itself passes through high-pressure air pipe to vehicle by external high pressure gas source
Body provides power, and resource is wide, and reliable and stable, using effect is good.
3, the utility model utilizes the distance of laser sensor detecting distance small-bore pipeline inner wall anti-corrosive coating, utilizes whirlpool
Flow sensor detecting distance, to the distance of small-bore pipeline metal layer, is obtained after corrosion-inhibiting coating using the range difference of same position
The thickness of small-bore pipeline inner wall anti-corrosive coating is taken, principle is simple, and measurement accuracy is high, and laser sensor and eddy current sensor are equal
It is three, a laser sensor and an eddy current sensor form a measuring unit, and the laser in a measuring unit
The laser detection line of sensor and the central axes of eddy current sensor are formed by the central axes that plane passes through measurement car body, three surveys
Amount unit works at the same time the measurement realized to one week corrosion-inhibiting coating of small-bore pipeline, and measurement effect is good.
4, the utility model is novel in design rationally positions the real time position of car body using electromagnetic location vehicle in real time, is convenient for work
Group personnel obtain car body position, and realization is accurately positioned unknown failure cause position, are recorded using mileage measurement mechanism
The traveling mileage of car body, no dragging line is portable, easy to operate, convenient for promoting the use of.
In conclusion the utility model is novel in design rationally, vehicle, the second measurement vehicle, the first signal processing are measured by first
Vehicle, second signal processing vehicle, third measurement vehicle, power supply transfer, battery car and electromagnetic location vehicle sequentially coaxially connect from front to back
It connects, lines up "-" type, signal processing vehicle assigns between three measurement vehicles, reduces signal conveying length and signal interference, utilizes
Mileage measurement mechanism records the traveling mileage of car body, is pushed using external high pressure gas source to "-" type car body, reduces car body
It itself installs driving device additional and expends electric energy, extend the cruising ability of battery car, convenient for promoting the use of.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram that the utility model measures vehicle.
Fig. 3 is the structural schematic diagram of the utility model signal processing vehicle.
Fig. 4 is the structural schematic diagram of the utility model power supply transfer.
Fig. 5 is the structural schematic diagram of the utility model battery car.
Fig. 6 is the structural schematic diagram of the utility model electromagnetic location vehicle.
Fig. 7 is the structural schematic diagram of the utility model mileage measurement mechanism.
Fig. 8 is the schematic block circuit diagram of the utility model.
Fig. 9 is that the utility model first measures vehicle, the second measurement vehicle, the first signal processing vehicle, second signal and handles vehicle, the
Three measure the structural assembly diagram of vehicles, power supply transfer, battery car, electromagnetic location vehicle and mileage measurement mechanism.
Description of symbols:
1-the first measurement vehicle；2-the second measurement vehicle；3-the first signal processing vehicle；
4-second signals handle vehicle；5-thirds measure vehicle；6-power supply transfers；
7-battery cars；8-electromagnetic location vehicles；9-hoses；
10-mileage measurement mechanisms；11-leather cups；12-car bonnets；
13-laser shields；14-laser sensors；
14-1-first laser sensor；14-2-second laser sensor；
14-3-third laser sensor；15-sensor holders；
16-the first screw；17-eddy current sensors；
The first eddy current sensor of 17-1-；17-2-second eddy current sensor；
17-3-third eddy current sensor；18-the second screw；
20-measurement car bodies；21-third screws；25-signal processing car bodies；
26-amplifier brackets；27-galvanomagnetic amplifiers；
28-signal processing circuit board brackets；29-signal processing circuit boards；
30-USB interfaces；34-the four screw；35-the five screw；
36-power supplys convert car body；37-power switches；
38-reset switches；39-power conversion module brackets；
40-power conversion modules；41-battery car bodies；42-the first cushion；
43-battery packs；44-rubber pads；45-electromagnetic location car bodies；
46-dashpots；47-electromagnetic location modules；48-the second cushion；
50-firm bankings；51-first stroke measurement wheels；52-first stroke measurement wheels；
53-support wheels；54-the first wheel shaft；55-the second wheel shaft；
56-third wheel shafts；57-the first self-locking nut；58-the second self-locking nut；
59-third self-locking nuts；60-the first torsional spring；61-the second torsional spring；
62-third torsional springs；63-small-bore pipelines；64-ring flanges；
65-high-pressure air pipes；66-the first signal conditioning module；
67-second signal conditioning modules；68-third signal conditioning modules；
69-microprocessor modules；70-mileage coding modules；71-SD card memory modules；
72-headstock disks；73-tailstock seats.
Specific embodiment
As shown in Figure 1, Figure 2, shown in Fig. 8 and Fig. 9, the utility model includes sequentially coaxially being connected to small-bore pipeline from front to back
The first measurement vehicle 1, second in 63 measures vehicle 2, the first signal processing vehicle 3, second signal processing vehicle 4, third measurement vehicle 5, electricity
Source transfer 6, battery car 7 and electromagnetic location vehicle 8 are connected by hose 9 between two adjacent car bodies, and electromagnetic location vehicle 8 is remote
One end from battery car 7 is provided with mileage measurement mechanism 10, and ring flange 64 is equipped on the input port of small-bore pipeline 63,
Ring flange 64 is equipped with the high-pressure air pipe 65 being connected to small-bore pipeline 63, the first measurement vehicle far from one end of small-bore pipeline 63
1, the measurement car body 20 and setting of the second measurement vehicle 2 and third measurement vehicle 5 including hollow structure are used in measurement car body 20
Peace is provided on the outside of the sensor holder 15 of installation laser sensor 14 and eddy current sensor 17, the detection faces of laser sensor 14
Laser shield 13 on measurement car body 20, the detection faces outside of eddy current sensor 17, which is equipped with, to be mounted on measurement car body 20
It is vortexed protective cover, laser shield 13 and the vortex protective cover form the flat face of milling of measurement car body 20, the inspection of laser sensor 14
Survey face is parallel with the detection faces of eddy current sensor 17 and equal towards the flat face of milling for measuring car body 20, the laser of laser sensor 14
The central axes of detection line and eddy current sensor 17 are formed by the central axes that plane passes through measurement car body 20；
Laser sensor 14 is first laser sensor 14-1, second laser sensor 14-2 or third laser sensor
14-3, eddy current sensor 17 be the first eddy current sensor 17-1, second eddy current sensor 17-2 or third eddy current sensor 17-3,
First laser sensor 14-1 and the first eddy current sensor 17-1 are arranged in the measurement car body 20 of the first measurement vehicle 1, and second
Laser sensor 14-2 and second eddy current sensor 17-2 are arranged in the measurement car body 20 of the second measurement vehicle 2, third laser
Sensor 14-3 and third eddy current sensor 17-3 is arranged in the measurement car body 20 of third measurement vehicle 3, first laser sensing
The first plane that the central axes of the laser detection line of device 14-1 and the first eddy current sensor 17-1 are formed, second laser sensor
The second plane that the laser detection line of 14-2 and the central axes of second eddy current sensor 17-2 are formed, third laser sensor 14-
The third plane that 3 laser detection line and the central axes of third eddy current sensor 17-3 are formed, first plane, described second
Plane and the third plane are mutually 120 °.
It should be noted that first measurement vehicle 1, second measure vehicle 2, the first signal processing vehicle 3, second signal processing vehicle 4,
Third measurement vehicle 5, power supply transfer 6, battery car 7 and electromagnetic location vehicle 8 sequentially coaxially connect from front to back, line up "-" type,
First signal processing vehicle 3 and second signal processing vehicle 4 assign between the second measurement vehicle 2 and third 5 vehicles of measurement, pass through the first letter
The data of the first measurement vehicle 1 of number processing vehicle 3 processing and the second measurement 2 vehicles acquisition pass through second signal and handle vehicle 4 and handle third and survey
The data that vehicle 5 acquires are measured, the data communication distance of the first measurement vehicle 1 and the second measurement vehicle 2 is reduced, reduces signal interference, data
Processing accuracy is high；Battery car 7 and power supply transfer 6 are that the first measurement vehicle 1, second measures vehicle 2, the first signal processing vehicle 3, second
Signal processing vehicle 4, third measurement vehicle 5 and electromagnetic location vehicle 8 provide the power supply of different voltages, and electric energy supply is used only for
The acquisition and pretreatment of data, do not drive car body itself, low in energy consumption, it can be achieved that the electric energy of long-time long range supplies,
Extend the cruising ability of battery car 7, the movement of car body itself is provided by high-pressure air pipe 65 to car body by external high pressure gas source
Power, resource is wide, reliable and stable, and using effect is good；It is applied using 14 detecting distance small-bore pipeline inner wall anti-corrosive of laser sensor
The distance of layer is utilized after corrosion-inhibiting coating to the distance of small-bore pipeline metal layer using 17 detecting distance of eddy current sensor
The range difference of same position obtains the thickness of small-bore pipeline inner wall anti-corrosive coating, and principle is simple, and measurement accuracy is high, and laser
Sensor 14 and eddy current sensor 17 are three, and a laser sensor 14 and an eddy current sensor 17 form a measurement
Unit, and the laser detection line of the laser sensor 14 in a measuring unit and the central axes of eddy current sensor 17 are formed by
Plane passes through the central axes of measurement car body, and three measuring units work at the same time realization to one week corrosion-inhibiting coating of small-bore pipeline
Measurement, measurement effect are good；It positions the real time position of car body in real time using electromagnetic location vehicle 8, obtains car body position convenient for work group personnel
It sets, realization is accurately positioned unknown failure cause position, the traveling mileage of car body is recorded using mileage measurement mechanism 10,
It is portable without dragging line, it is easy to operate.
In actual use, the laser shield being mounted on measurement car body 20 is provided on the outside of the detection faces of laser sensor 14
13, the detection faces outside of eddy current sensor 17 is equipped with the vortex protective cover being mounted on measurement car body 20, for protecting laser
Sensor 14 and eddy current sensor 17 be not by environmental disturbances.
As shown in figure 3, the first signal processing vehicle 3 and second signal processing vehicle 4 include hollow in the present embodiment
The signal processing car body 25 of structure and it is arranged in signal processing car body 25 for installing the amplifier branch of galvanomagnetic amplifier 27
Frame 26 and signal processing circuit board bracket 28 for installing signal processing circuit board 29, offer on signal processing car body 25 with
The USB interface 30 of 29 signal output end of signal processing circuit board connection, galvanomagnetic amplifier 27 in the first signal processing vehicle 3 with
First eddy current sensor 17-1 is connected with second eddy current sensor 17-2, second signal handle vehicle 4 in galvanomagnetic amplifier 27 with
The 17-3 connection of third eddy current sensor is integrated on the signal processing circuit board 29 in the first signal processing vehicle 3 for improving the
First signal conditioning module 66 of the signal of one laser sensor 14-1 and the first eddy current sensor 17-1 acquisition, and for adjusting
Manage the second signal conditioning module 67 of the signal of second laser sensor 14-2 and second eddy current sensor 17-2 acquisition, the second letter
Microprocessor module 69 is integrated on signal processing circuit board 29 in number processing vehicle 4 and for improving third laser sensor
The third signal conditioning module 68 of the signal of 14-3 and third eddy current sensor 17-3 acquisition, the first eddy current sensor 17-1 pass through
Galvanomagnetic amplifier 27 in first signal processing vehicle 3 is connect with the first signal conditioning module 66, and second eddy current sensor 17-2 is logical
The galvanomagnetic amplifier 27 crossed in the first signal processing vehicle 3 is connect with second signal conditioning module 67, third eddy current sensor 17-3
It handles the galvanomagnetic amplifier 27 in vehicle 4 by second signal to connect with third signal conditioning module 68, the first signal conditioning module
66, second signal conditioning module 67 and third signal conditioning module 68 are connect with microprocessor module 69, microprocessor module
SD card memory module 71 is connected on 69.
It should be noted that weak output signal and the presence interference of the acquisition of eddy current sensor 17, wherein the first eddy current sensor
17-1 carries out signal enhanced processing by the galvanomagnetic amplifier 27 in the first signal processing vehicle 3, and second eddy current sensor 17-2 is logical
The galvanomagnetic amplifier 27 crossed in the first signal processing vehicle 3 carries out signal enhanced processing, handles convenient for signal conditioning module, third whirlpool
Flow sensor 17-3 handles the galvanomagnetic amplifier 27 in vehicle 4 by second signal and carries out signal enhanced processing, is convenient for signal condition
Resume module, the first signal processing vehicle 3 and second signal processing vehicle 4 are sequentially connected convenient for realizing microprocessor module 69 nearby
To the signal processing of the first signal conditioning module 66, second signal conditioning module 67 and third signal conditioning module 68, micro process
The purpose that SD card memory module 71 is connected in device module 69 is easy for the whole data of record small-bore pipeline 63, is convenient for follow-up data
Export is analyzed, in the present embodiment, first signal conditioning module 66, second signal conditioning module 67 and third signal condition mould
Block 68 is analog-to-digital conversion module.
As shown in figure 5, the battery car 7 includes battery car body 41 and is arranged in battery car body 41 in the present embodiment
Battery pack 43 is provided with the first cushion 42 between battery pack 43 and battery car body 41.
It should be noted that be arranged between battery pack 43 and battery car body 41 first cushion 42 the purpose is to reduce car bodies
Car body bring is interfered in vibration when running in small-bore pipeline 63, and in the present embodiment, the first cushion 42 uses pearl cotton
Cushion, at low cost, effect is good.
As shown in figure 4, the power supply transfer 6 includes that power supply conversion car body 36 and setting turn in power supply in the present embodiment
Body 36 of changing trains is interior for installing the power conversion module bracket 39 of power conversion module 40, is provided with electricity on power supply conversion car body 36
Source switch 37 and reset switch 38, power switch 37 are connected on the current supply circuit between battery pack 43 and power conversion module 40
In, battery pack 43 is 24V DC power supply, and power conversion module 40 includes that 24V direct current turns 12V DC electricity module, 12V direct current
Electricity turns 5V DC power module and 5V direct current turns 3.3V DC power module, and laser sensor 14 and eddy current sensor 17 pass through
The power supply of 12V DC electricity, the first signal conditioning module 66, second signal conditioning module 67 and third signal conditioning module 68 pass through
5V powered by direct current, for microprocessor module 69 by 3.3V powered by direct current, microprocessor module 69 is STM32F103 micro process
Device module, reset switch 38 are connected in the current supply circuit that 3.3V direct current is the power supply of STM32F103 microprocessor module.
As shown in fig. 6, the electromagnetic location vehicle 8 includes that electromagnetic location car body 45 and setting are fixed in electromagnetism in the present embodiment
Electromagnetic location module 47 in the car body 45 of position, is provided with dashpot 46 between electromagnetic location module 47 and electromagnetic location car body 45,
Electromagnetic location module 47 passes through 3.3V powered by direct current.
It should be noted that the purpose one of dashpot 46 is arranged between electromagnetic location module 47 and electromagnetic location car body 45
It is in order to reduce vibration when car body is run in small-bore pipeline 63 and interfere car body bring, second is that in order to give data line and electricity
There are the spaces of cabling for source line.In the present embodiment, the dashpot 46 is EVA dashpot, and the second cushion 48 is EVA buffering
Pad.
As shown in Figures 2 to 6, in the present embodiment, the measurement car body 20, signal processing car body 25, power supply convert car body
36, the rear and front end of battery car body 41 and electromagnetic location car body 45 is provided with car bonnet 12, measures car body 20, signal processing car body
25, power supply conversion car body 36,45 front end of battery car body 41 and electromagnetic location car body car bonnet 12 on front side of be provided with headstock disk
72, headstock disk 72 is the truncated cone-shaped headstock disk of hollow structure, and the front end face diameter of the truncated cone-shaped headstock disk is less than the rotary table
The rear end face diameter of shape headstock disk, amount car body 20, signal processing car body 25, power supply conversion car body 36, battery car body 41 and electromagnetism
The car bonnet 12 of positioning 45 front end of car body is installed on the rear end face of the truncated cone-shaped headstock disk, measures car body 20, signal processing vehicle
The cross-sectional diameter that body 25, power supply convert car body 36, battery car body 41 and electromagnetic location car body 45 is less than the truncated cone-shaped headstock
The rear end face diameter of disk, amount car body 20, signal processing car body 25, power supply conversion car body 36, battery car body 41 and electromagnetic location vehicle
The tailstock seat 73 of arc hollow structure, amount car body 20, signal processing car body 25, electricity are provided on rear side of the car bonnet 12 of 45 rear end of body
The cross-sectional diameter that car body 36, battery car body 41 and electromagnetic location car body 45 are converted in source is straight no more than the cross section of tailstock seat 73
Diameter is fixedly installed with leather cup 11 in the truncated cone-shaped headstock disk；Between the car bonnet 12 installed in battery pack 43 and battery car body 41
It is provided with rubber pad 44, is provided with the second cushion between the car bonnet 12 installed in electromagnetic location module and electromagnetic location car body
48。
It should be noted that measurement car body 20, signal processing car body 25, power supply conversion car body 36, battery car body 41 and electricity
The rear and front end of magnetic orientation car body 45 is provided with car bonnet 12, to the first measurement measurement of vehicle 1, second vehicle 2, the first signal
Reason vehicle 3, second signal processing vehicle 4, third measurement vehicle 5, power supply transfer 6, battery car 7 and electromagnetic location vehicle 8 are sealed, and are measured
Car body 20, signal processing car body 25, power supply conversion car body 36,45 front end of battery car body 41 and electromagnetic location car body car bonnet 12 before
Side is provided with headstock disk 72, realizes in traveling process and measures vehicle 2, the first signal processing vehicle 3, the to the first measurement vehicle 1, second
Binary signal handles vehicle 4, third measurement vehicle 5, power supply transfer 6, battery car 7 and electromagnetic location vehicle 8 and carries out barrier investigation, reduces
Barrier directly acts on the first measurement vehicle 1, damages to the first measurement vehicle 1, headstock disk 72 is the rotary table of hollow structure
The front end face diameter of shape headstock disk and the truncated cone-shaped headstock disk is less than the rear end face diameter of the truncated cone-shaped headstock disk, reduces vehicle
The resistance that body advances, amount car body 20, signal processing car body 25, power supply conversion car body 36, battery car body 41 and electromagnetic location car body
45 cross-sectional diameter is less than the rear end face diameter of the truncated cone-shaped headstock disk, measures vehicle 2 and for the first measurement vehicle 1, second
The three measurement detections of vehicles 5 there are distance margin, increase the first measurement vehicle 1, second and measure vehicle 2 and the to 63 distance of small-bore pipeline
The detection accuracy of three measurement vehicles 5, avoids distance too close, detection is caused to fail；Car body 20, signal processing car body 25, power supply is measured to turn
Change trains 45 rear end of body 36, battery car body 41 and electromagnetic location car body car bonnet 12 on rear side of be provided with the tailstock of arc hollow structure
Seat 73, each tailstock seat 73 cooperate with each headstock disk 72, while supporting entire car body, reduce the running resistance of car body；Institute
It states and is fixedly installed with leather cup 11 in truncated cone-shaped headstock disk, realize the sealing to each headstock disk 72, while the matter of car body can be reduced
Amount, convenient for the Fast marching of car body.
As shown in fig. 7, the mileage measurement mechanism 10 includes the fixation bottom connecting with electromagnetic location vehicle 8 in the present embodiment
Seat 50 and first stroke measurement wheel 51, second stroke measurement wheel 52 and the support wheel 53 being arranged on firm banking 50, it is fixed
Second for being provided with the first ring seat cooperated with first stroke measurement wheel 51 on pedestal 50, cooperating with second stroke measurement wheel 52
Ring seat and the third ring seat cooperated with support wheel 53, first stroke measurement wheel 51 are cooperated by the first wheel shaft 54 and the first ring seat,
Second stroke measurement wheel 52 is cooperated by the second wheel shaft 55 and the second ring seat, and support wheel 53 passes through third wheel shaft 56 and third ring seat
Cooperate, the first torsional spring 60 connecting with first stroke measurement wheel 51 is arranged on the first wheel shaft 54 and for blocking the first torsional spring 60
The first self-locking nut 57, be arranged with the second torsional spring 61 connecting with second stroke measurement wheel 52 on the second wheel shaft 55 and be used for
The second self-locking nut 58 of the second torsional spring 61 is blocked, is arranged with the third torsional spring 62 connecting with support wheel 53 on third wheel shaft 56
With the third self-locking nut 59 for blocking third torsional spring 62, pacify on first stroke measurement wheel 51 and second stroke measurement wheel 52
Equipped with connecting mileage coding module 70 with microprocessor module 69.
It should be noted that first stroke measurement wheel 51 and second stroke measurement wheel 52 are set on firm banking 50, two
Stroke measurement wheel simultaneously records the traveling mileage of car body, it is ensured that mileage record is reliably effective, first stroke measurement wheel 51
Cooperated by the first wheel shaft 54 and the first ring seat, second stroke measurement wheel 52 is cooperated by the second wheel shaft 55 and the second ring seat, branch
Support wheel 53 is cooperated by third wheel shaft 54 and third ring seat, realizes first stroke measurement wheel 51, second stroke measurement wheel 52 and branch
The rotation of support wheel 53, can cooperate with more size caliber pipes, be arranged on the first wheel shaft 54 and connect with first stroke measurement wheel 51
The first torsional spring 60, be arranged with the second torsional spring 61 connecting with second stroke measurement wheel 52, third wheel shaft 56 on the second wheel shaft 55
On be arranged with the third torsional spring 62 connecting with support wheel 53, it is possible to provide the pressure certain to inner wall of the pipe prevents in traveling process
First stroke measurement wheel 51, second stroke measurement wheel 52 and support wheel 53 and inner wall of the pipe are skidded, precise measurement distance.
As shown in fig. 7, in the present embodiment, the geometric center of the geometric center point of first ring seat, second ring seat
The interconnecting line of the geometric center point of point and the third ring seat forms equilateral triangle.
It should be noted that the geometric center point of the first ring seat, the geometric center point and the third of second ring seat
The purpose that the interconnecting line of the geometric center point of ring seat forms equilateral triangle is to guarantee first stroke measurement wheel 51, second stroke meter
Amount wheel 52 and support wheel 53 are evenly distributed in firm banking 50, form symmetrical structure, avoid the injustice of car body traveling process
Weighing apparatus, it is reliable and stable.
In actual installation, laser sensor 14 is fixed on sensor holder 15 by the first screw 16, measurement car body 20
Both ends are connect using the second screw 18 with car bonnet 12, are connect by screw with leather cup 11 on the outside of car bonnet 12, sensor holder 15 passes through
Third screw 21 is fixed on measurement car body 20, and galvanomagnetic amplifier 27 is mounted on amplifier bracket 26 by the 4th screw 34,
Amplifier bracket 26 is mounted on 25 inside of signal processing car body by the 5th screw 35.
When the utility model is used, power switch 37 and reset switch 38 are opened first, according still further to first measurement vehicle 1,
Second measurement vehicle 2, the first signal processing vehicle 3, second signal processing vehicle 4, third measurement vehicle 5, power supply transfer 6, battery car 7,
Car body is pushed completely into small-bore pipeline 63 by the sequence of electromagnetic location vehicle 8 and mileage measurement mechanism 10, then will be connected to height
The ring flange 64 of pressurized air source is mounted on small-bore pipeline 63, is opened high-pressure air source, is passed through the compressed air of certain flow, is pressed
Contracting air push car body is advanced in pipeline, and the first measurement vehicle 1, second measures vehicle 2 and third measurement vehicle 5 can be in pipeline circumferential direction
Three positions (at a distance of 120 °) carry out precise measurement, the first measurement vehicle 1, second measures the laser in vehicle 2 and third measurement vehicle 5
Sensor 14 and eddy current sensor 17 are arranged in the entire car body same horizontal line parallel with axis, the first measurement vehicle 1,
Laser sensor 14 in second measurement vehicle 2 and third measurement vehicle 5 is used to measure the internally coated distance of tube wall, eddy current sensor
17 are used to measure the distance of metal pipe-wall, the interior laser of the distance and each measurement recorded using mileage measurement mechanism 10
The difference of 17 two measured values of sensor 14 and eddy current sensor, can obtain the thickness of the position coating, the measurement of entire pipeline
Data are recorded in SD card memory module 71, after to be detected, take out car body, SD card memory module 71 is read calculating
On machine, pipeline status is analyzed, is assessed, obtains the data of entire tested pipeline inside coating thickness.
The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model, all
According to any simple modification to the above embodiments of the utility model technical spirit, change and equivalent structural changes, still
Belong in the protection scope of technical solutions of the utility model.
Claims (10)
1. a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment, it is characterised in that: including being sequentially coaxially connected to from front to back
The first measurement vehicle (1), the second measurement vehicle (2), the first signal processing vehicle (3), second signal processing in small-bore pipeline (63)
Vehicle (4), third measurement vehicle (5), power supply transfer (6), battery car (7) and electromagnetic location vehicle (8), between two adjacent car bodies
It is connected by hose (9), electromagnetic location vehicle (8) is provided with mileage measurement mechanism (10) far from the one end of battery car (7), small-bore
It is equipped on the input port of pipeline (63) ring flange (64), ring flange (64) is equipped with far from the one end of small-bore pipeline (63)
The high-pressure air pipe (65) being connected to small-bore pipeline (63).
2. a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment described in accordance with the claim 1, it is characterised in that: described first
The measurement car body (20) and setting of vehicle (1), the second measurement vehicle (2) and third measurement vehicle (5) including hollow structure is measured to exist
For installing the sensor holder (15) of laser sensor (14) and eddy current sensor (17), laser sensor in measurement car body (20)
(14) the laser shield (13) being mounted in measurement car body (20), the detection of eddy current sensor (17) are provided on the outside of detection faces
The vortex protective cover being mounted in measurement car body (20) is equipped on the outside of face, laser shield (13) and the vortex protective cover, which are formed, to be surveyed
Measure the flat face of milling of car body (20), detection faces of laser sensor (14) and the detection faces of eddy current sensor (17) are parallel and equal court
To the flat face of milling of measurement car body (20), the laser detection line of laser sensor (14) and the central axes institute shape of eddy current sensor (17)
At plane pass through measurement car body (20) central axes；
Laser sensor (14) is first laser sensor (14-1), second laser sensor (14-2) or third laser sensor
(14-3), eddy current sensor (17) is the first eddy current sensor (17-1), second eddy current sensor (17-2) or third vortex pass
Sensor (17-3), first laser sensor (14-1) and the first eddy current sensor (17-1) are arranged at the first measurement vehicle (1)
It measures in car body (20), second laser sensor (14-2) and second eddy current sensor (17-2) are arranged at the second measurement vehicle
(2) in measurement car body (20), third laser sensor (14-3) and third eddy current sensor (17-3) are arranged at third survey
In the measurement car body (20) for measuring vehicle (5), the laser detection line of first laser sensor (14-1) and the first eddy current sensor (17-
1) the first plane that central axes are formed, the laser detection line and second eddy current sensor (17- of second laser sensor (14-2)
2) the second plane that central axes are formed, the laser detection line and third eddy current sensor (17- of third laser sensor (14-3)
3) the third plane that central axes are formed, first plane, second plane and the third plane are mutually 120 °.
3. a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment according to claim 2, it is characterised in that: described first
The signal processing car body (25) and setting of signal processing vehicle (3) and second signal processing vehicle (4) including hollow structure are being believed
For installing the amplifier bracket (26) of galvanomagnetic amplifier (27) and for installing signal processing circuit in number processing car body (25)
The signal processing circuit board bracket (28) of plate (29) offers on signal processing car body (25) and believes with signal processing circuit board (29)
The USB interface (30) of number output end connection, galvanomagnetic amplifier (27) and the first eddy current sensor in the first signal processing vehicle (3)
The connection of (17-1) and second eddy current sensor (17-2), second signal handle galvanomagnetic amplifier (27) and third whirlpool in vehicle (4)
Flow sensor (17-3) connection is integrated on the signal processing circuit board (29) in the first signal processing vehicle (3) for improving the
The first signal conditioning module (66) of one laser sensor (14-1) and the signal of the first eddy current sensor (17-1) acquisition, and
Second signal for improving the signal of second laser sensor (14-2) and second eddy current sensor (17-2) acquisition improves mould
Block (67), second signal, which is handled, to be integrated with microprocessor module (69) and uses on the signal processing circuit board (29) in vehicle (4)
In the third signal conditioning module of the signal of conditioning third laser sensor (14-3) and third eddy current sensor (17-3) acquisition
(68), the first eddy current sensor (17-1) passes through the galvanomagnetic amplifier (27) and the first signal tune in the first signal processing vehicle (3)
Manage module (66) connection, second eddy current sensor (17-2) by galvanomagnetic amplifier (27) in the first signal processing vehicle (3) with
Second signal conditioning module (67) connection, third eddy current sensor (17-3) are put by the electromagnetism in second signal processing vehicle (4)
Big device (27) is connect with third signal conditioning module (68), the first signal conditioning module (66), second signal conditioning module (67)
It is connect with microprocessor module (69) with third signal conditioning module (68), is connected with SD card on microprocessor module (69) and deposits
It stores up module (71).
4. a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment described in accordance with the claim 3, it is characterised in that: the battery
Vehicle (7) includes the battery pack (43) of battery car body (41) and setting in battery car body (41), battery pack (43) and battery car body
(41) the first cushion (42) are provided between.
5. a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment according to claim 4, it is characterised in that: the power supply
Transfer (6) includes that power supply conversion car body (36) and setting are used to install power conversion module in power supply conversion car body (36)
(40) power conversion module bracket (39), power supply are converted and are provided with power switch (37) and reset switch on car body (36)
(38), power switch (37) is connected in the current supply circuit between battery pack (43) and power conversion module (40), battery pack
It (43) is 24V DC power supply, power conversion module (40) includes that 24V direct current turns 12V DC electricity module, 12V DC electricity turns 5V
DC power module and 5V direct current turn 3.3V DC power module, and laser sensor (14) and eddy current sensor (17) pass through 12V
Powered by direct current, the first signal conditioning module (66), second signal conditioning module (67) and third signal conditioning module (68) are equal
By 5V powered by direct current, microprocessor module (69) is by 3.3V powered by direct current, microprocessor module (69)
STM32F103 microprocessor module, reset switch (38) are connected on 3.3V direct current as the power supply of STM32F103 microprocessor module
Current supply circuit in.
6. a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment according to claim 5, it is characterised in that: the electromagnetism
Positioning vehicle (8) includes the electromagnetic location module (47) of electromagnetic location car body (45) and setting in electromagnetic location car body (45), electricity
It is provided between magnetic orientation module (47) and electromagnetic location car body (45) dashpot (46), electromagnetic location module (47) passes through 3.3V
Powered by direct current.
7. a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment according to claim 6, it is characterised in that: the measurement
Before car body (20), signal processing car body (25), power supply conversion car body (36), battery car body (41) and electromagnetic location car body (45)
Both ends are provided with car bonnet (12) afterwards, and measurement car body (20), signal processing car body (25), power supply convert car body (36), battery car
It is provided with headstock disk (72) on front side of body (41) and the car bonnet (12) of electromagnetic location car body (45) front end, headstock disk (72) is hollow
The truncated cone-shaped headstock disk of structure, the rear end face that the front end face diameter of the truncated cone-shaped headstock disk is less than the truncated cone-shaped headstock disk are straight
Diameter, measurement car body (20), signal processing car body (25), power supply conversion car body (36), battery car body (41) and electromagnetic location car body
(45) car bonnet (12) of front end is installed on the rear end face of the truncated cone-shaped headstock disk, measures car body (20), signal processing vehicle
The cross-sectional diameter that body (25), power supply convert car body (36), battery car body (41) and electromagnetic location car body (45) is less than the circle
The rear end face diameter of platform shape headstock disk, measurement car body (20), signal processing car body (25), power supply convert car body (36), battery car
It is provided with the tailstock seat (73) of arc hollow structure on rear side of body (41) and the car bonnet (12) of electromagnetic location car body (45) rear end, surveys
Measure car body (20), signal processing car body (25), power supply conversion car body (36), battery car body (41) and electromagnetic location car body (45)
Cross-sectional diameter is not more than the cross-sectional diameter of tailstock seat (73), is fixedly installed with leather cup (11) in the truncated cone-shaped headstock disk；
It is provided with rubber pad (44) between the car bonnet (12) installed in battery pack (43) and battery car body (41), electromagnetic location module and electricity
The second cushion (48) are provided between the car bonnet (12) installed on magnetic orientation car body.
8. a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment according to claim 5, it is characterised in that: the mileage
Metrological service (10) include the firm banking (50) being connect with electromagnetic location vehicle (8) and be arranged on firm banking (50) the
One stroke measurement wheel (51), second stroke measurement wheel (52) and support wheel (53), are provided on firm banking (50) and the first row
First ring seat of journey measurement wheel (51) cooperation is matched with second ring seat of second stroke measurement wheel (52) cooperation and with support wheel (53)
The third ring seat of conjunction, first stroke measurement wheel (51) are cooperated by the first wheel shaft (54) and the first ring seat, second stroke measurement wheel
(52) being cooperated by the second wheel shaft (55) and the second ring seat, support wheel (53) is cooperated by third wheel shaft (56) and third ring seat,
The first torsional spring (60) connecting with first stroke measurement wheel (51) is arranged on first wheel shaft (54) and for blocking the first torsional spring
(60) the first self-locking nut (57) is arranged with the second torsional spring connecting with second stroke measurement wheel (52) on the second wheel shaft (55)
(61) and for block the second self-locking nut (58) of the second torsional spring (61) it, is arranged on third wheel shaft (56) and support wheel (53)
The third torsional spring (62) of connection and third self-locking nut (59) for blocking third torsional spring (62), first stroke measurement wheel (51)
Mileage coding module (70) are connect with microprocessor module (69) with being mounted on second stroke measurement wheel (52).
9. a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment according to claim 8, it is characterised in that: described first
The interconnecting line of the geometric center point of the geometric center point of ring seat, the geometric center point of second ring seat and the third ring seat
Form equilateral triangle.
10. a kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment according to claim 7, it is characterised in that: described
One signal conditioning module (66), second signal conditioning module (67) and third signal conditioning module (68) are analog-to-digital conversion mould
Block；The dashpot (46) is EVA dashpot, and the first cushion (42) is pearl cotton cushion, and the second cushion (48) is EVA
Cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141509.4U CN209326559U (en) | 2018-12-20 | 2018-12-20 | A kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822141509.4U CN209326559U (en) | 2018-12-20 | 2018-12-20 | A kind of inner wall of the pipe corrosion-inhibiting coating thickness detecting equipment |
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| CN209326559U true CN209326559U (en) | 2019-08-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506578A (en) * | 2018-12-20 | 2019-03-22 | 长庆石油勘探局有限公司技术监测中心 | A kind of small-bore pipeline inner wall anti-corrosive coating thickness measurement system |
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2018
- 2018-12-20 CN CN201822141509.4U patent/CN209326559U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506578A (en) * | 2018-12-20 | 2019-03-22 | 长庆石油勘探局有限公司技术监测中心 | A kind of small-bore pipeline inner wall anti-corrosive coating thickness measurement system |
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