CN209370853U - A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage - Google Patents
A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage Download PDFInfo
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- CN209370853U CN209370853U CN201821917100.0U CN201821917100U CN209370853U CN 209370853 U CN209370853 U CN 209370853U CN 201821917100 U CN201821917100 U CN 201821917100U CN 209370853 U CN209370853 U CN 209370853U
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Abstract
The utility model relates to combustion gas buried pipeline leak detection fields, more particularly to a kind of combustion gas buried pipeline leaks lateral Blind Test scanning means, the device includes laser detecting apparatus, laser detecting apparatus includes main control module, laser detection module and sound and light alarm module, and laser detection module and sound and light alarm module are both connected on main control module；Laser detection module projects the angle of direction and motor vehicle or electric truck head direction of travel between 45~90 ° by the laser that motor vehicle perhaps height laser detection module of the electric vehicle front end apart from 10~50cm of ground is arranged in bracket.That the purpose of the utility model is to overcome the above-mentioned buried pipeline of combustion gas in the prior art leak detecting device detection efficiencies is low, at high cost, accuracy rate is low and a kind of combustion gas buried pipeline that Detection accuracy is high is provided the shortcomings that limitation by gas ductwork burial place leaks lateral Blind Test scanning means.
Description
Technical field
The utility model relates to combustion gas buried pipeline leak detection field more particularly to a kind of leakage of combustion gas buried pipeline are horizontal
To Blind Test scanning means.
Background technique
Each Urban Underground is embedded with a large amount of natural gas line, for being supplied to each resident and industry and commerce user, because
Combustion gas has the characteristics such as subtle, explosive, and gas safe accident emerged one after another in recent years, wherein relative to exposure fuel gas conduit
Line, the burning line that underground is buried is more hidden and pipe network situation is more complicated, and when have drawing inaccurate or loss situation, cause
Gas company staff can not find the position of gas pipeline, and combustion gas is extremely easy to seal in cable duct, Bilge after leakage
Etc. sealing spaces, cause huge life threat and property loss, each gas company need to introduce advanced management method and high-tech
The generation of such accident is reduced or avoided with technological means for the detection device of skill.
The leak detection of existing combustion gas buried pipeline generally uses handheld terminal detection and inspection car detection, but all needs elder generation
Know that the specific location of underground gas ductwork, pipeline location need to generally be accurate to 1.5 meters or so, it is maximum in special circumstances also not answer
More than 12 meters, can reality be that the positions of many some pipe networks of gas company is not very clear very specific at all, be extremely difficult to
It is required that；And it is low that handheld terminal detects high labor cost, detection efficiency.Inspection car has pump suction type small handcart detector, pump suction type
Patrol inspection electric vehicle, pump suction type detection automobile, overhead laser telemetry vehicle etc..Pump suction type structure needs, which are drawn into gas in host, to be examined
Degree of testing the speed is very slow, and needs to walk in the top of gas ductwork, and detection range is very small, it is necessary to buried gas pipeline just
Top or so is no more than five meter Cai Neng and detects.Overhead laser telemetry vehicle is arranged on roof can 360 ° of laser detections rotated
Instrument, 360 ° of rotations, to detect the leakage situation of gas ductwork on ground, natural gas is lighter than air, can pass through weak ground after leakage
Side emerges ground, is higher by 10 to 50 centimeters or so of road surface under normal circumstances, because the reason of spreading be higher than 50 centimeters it is just dilute
The very little very little released removes non-leak especially severe, is otherwise difficult to be detected, downward sweeping laser and ground from roof
An oblique angle is formd between face, so Detection accuracy is relatively high when inspection car is closer apart from pipe network level, if
Farther out apart from pipe network, and the range of gas leakage is smaller, is equivalent to a survey, and 360 ° of laser detecting apparatus rotations, can't detect
Probability it is very high, accuracy rate is low.
Utility model content
The purpose of the utility model is to overcome the detections of the above-mentioned buried pipeline leak detecting device of combustion gas in the prior art to imitate
Rate is low, at high cost, accuracy rate is low and it is high to provide a kind of Detection accuracy the shortcomings that limitation by gas ductwork burial place
Combustion gas buried pipeline leaks lateral Blind Test scanning means.
To achieve the goals above, the utility model provides the following technical solution: a kind of combustion gas buried pipeline leakage is horizontal
To Blind Test scanning means, which includes laser detecting apparatus, and laser detecting apparatus includes main control module, laser detection module and acousto-optic
Alarm module, laser detection module and sound and light alarm module are both connected on main control module；Laser detection module is set up by branch
The height in motor vehicle or electric vehicle front end apart from 10~50cm of ground is set, the laser of laser detection module projects direction and machine
The angle of motor-car or electric truck head direction of travel is between 45~90 °.
The laser of laser detection module projects the angle of direction and motor vehicle or electric truck head direction of travel at 90 °.
A display module is also connected on the main control module, display module is connected to master control mould using RVVP shielded signal line
On block.
Laser detecting apparatus includes two laser detection modules, and it is vehicle that the laser of one of laser detection module, which projects direction,
The left side of head direction of travel, the laser of another laser detection module project the right side that direction is headstock direction of travel.
The bracket includes leading flank and supporting leg, and supporting leg is fixed on motor vehicle or electric vehicle, and leading flank includes two sides
Upright bar, open up several groups bolt hole respectively in two upright bars, the height of every group of bolt hole is identical；Distinguish at the both ends of T-type frame
It is mounted on the leading flank of bracket by bolt hole, laser detection module is arranged on T-type frame.
Laser detection module is arranged in a snap ring, and snap ring is connect with T-type bracket by hand the turn of the screw.
A preposition anti-collision radar system is connected on laser emitter, which is connected on main control module.
Ball screw slide unit is set on the bracket, and ball screw slide unit includes lifting motor, ball screw, ball screw
Sliding rail, the upper end setting lifting motor and shaft coupling group of sliding rail is arranged in support base, sliding block and line slide rail, the front end face of bracket
Part, lifting motor and coupling assembly connect ball screw, and ball screw support base, ball screw is arranged in the lower section of ball screw
Support base is fixed on bracket, and sliding block is arranged on the slide rail, can be moved up and down under the drive of electric machine along sliding rail；On sliding block
Laser detection module is set, and the control module of lifting motor is connected on main control module.
Stabilizer bracket is set on sliding block and electric rotary table, sliding block are mounted on electric rotary table, stabilizer bracket
The connection of the rotary table top of top and electric rotary table, laser detection module are connected with stabilizer bracket the lowermost swivel bearing.
Compared with prior art, what the technical solution of the utility model generated has the beneficial effect that: the utility model changes
The setting position of existing vehicle-mounted laser detection device, is arranged in the height apart from 10~50cm of ground from overhead instead, and
And the direction detected and headstock direction of travel, at 45~90 °, inspection car on road when advancing, to the fuel gas conduit on the roadside of two sides
Net is lateral or approximately transversely strafes, and laser detection module and lateral angle maximum are no more than 45 °, realizes outside 100 meters all
Leakage point can be strafed, the accuracy rate of Blind Test is improved, and is saved labour turnover, detection efficiency is high.
Two laser detection modules are connected on one main control module, may be implemented that a vehicle left side can be detected in vehicle traveling simultaneously
The gas ductwork leakage situation of side and vehicle right side roadside arrangement.
A display is connected on main control module, can show detection case at any time on display.
Several groups bolt hole is set on bracket, is the height in order to change laser detection module, for different road surfaces
Situation can suitably adjust the height of T-type frame to protect laser detection module.
Setting ball screw slide rest device is for example to encounter barrier in order to when special circumstances occur, and is mentioned in time
Laser detection module is risen, laser detection module is avoided to be damaged.
By snap ring, hand the turn of the screw fixed laser detection module, the detection angle of horizontal direction can be changed as needed at any time
Degree.
When the setting of stabilizer bracket is for such as vehicle body shakiness, stabilizer bracket can automatically adjust laser detector
Upper lower angle (fine tuning) guarantees that the laser of laser detector transmitting is horizontal.Electric rotary table can guarantee laser detection
Device rotates automatically in the horizontal plane, and the combustion gas without changing vehicle traveling direction detection vehicle left side and right side has been achieved
Pipe network can detect.
Detailed description of the invention
Fig. 1 is the side view of Blind Test scanning means in the utility model embodiment one.
Fig. 2 is the top view of Blind Test scanning means in the utility model embodiment one.
Fig. 3 is the main view of Blind Test scanning means in the utility model embodiment one.
Fig. 4 is circuit theory connection figure in the utility model embodiment one.
Fig. 5 is the schematic illustration of the utility model laser emitter.
Fig. 6 is the circuit diagram of the utility model main control module.
Fig. 7 is the circuit diagram of the utility model power supply of the whole machine.
Fig. 8 is the circuit diagram of the utility model laser emitter.
Fig. 9 is the circuit diagram of the utility model touch display screen.
Figure 10 is the circuit diagram of the utility model RTC crystal oscillator clock.
Figure 11 is the circuit diagram of the utility model combined aural and visual alarm.
Figure 12 is the circuit diagram of the utility model master control reset circuit.
Figure 13 is the circuit diagram of the utility model master control power supply circuit.
Figure 14 is the circuit diagram of the utility model master clock crystal oscillating circuit.
Figure 15 is the side view of Blind Test scanning means in the utility model embodiment two.
Figure 16 is the top view of Blind Test scanning means in the utility model embodiment two.
Figure 17 is the main view of Blind Test scanning means in the utility model embodiment two.
Figure 18 is circuit theory connection figure in the utility model embodiment two.
Figure 19 is the circuit diagram that the utility model goes up and down (rotation) motor control.
Figure 20 is the circuit diagram of the utility model radar obstacle avoidance module.
Figure 21 is the side view of Blind Test scanning means in the utility model embodiment three.
Figure 22 is the top view of Blind Test scanning means in the utility model embodiment three.
Figure 23 is the main view of Blind Test scanning means in the utility model embodiment three.
Figure 24 is the rearview of Blind Test scanning means part in the utility model embodiment three.
Mode of laser group is connected to first serial ports TXD_1 (PA9) on main control module, RXD_1 (PA10)；Touch display screen
Second serial ports TXD_2 (PA2) being connected on main control module, RXD_2 (PA3)；Master clock crystal oscillating circuit provides master control mould
Clock required for block operates normally；RTC crystal oscillator clock is carried on main control module, provides clock for date-time；Complete machine
Power supply represents all power system, provides power supply to modules；Master control power supply circuit is the electricity for being dedicated for main control module power supply
Road；Lifting motor and rotating electric machine are all stepper motor, and two motors are driven by L298N, and L298N is controlled by PWM, can be controlled
Two motors are made, power meets.
It is marked in figure are as follows: 1, bracket；2, bolt；3, hand the turn of the screw；4, T-type frame；5, snap ring；6, laser emitter；7, sliding
Block；81, ball screw；82, line slide rail；83, ball screw support base；84, motor coupler component；91, rotary table top；
92, pedestal；93, stepper motor；101, the first swivel bearing；102, first annular bracket；103, the second swivel bearing；104,
Second ring bracket；11, radar obstacle avoidance module；12, main control module；13, touch display screen；14, combined aural and visual alarm；15, motor control
Circuit processed.
Specific embodiment
With reference to the accompanying drawing and three specific embodiments are further elaborated the utility model, but following three
A embodiment is only preferable embodiment, does not represent the limitation to technical solutions of the utility model protection scope.
Embodiment 1
A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage, as represented in figures 1 through 14, which includes combustion gas laser
Detector, the laser detecting apparatus include power supply of the whole machine, main control module 12, laser detection module, combined aural and visual alarm 14 and display mould
Block, display module are touch display screen 13.One bracket 1, the supporting leg and bottom of motor-vehicle disk of bracket are installed in the front end of motor vehicle
Under crossbeam connection, the two sides of bracket are provided with two upright bars, four groups of bolts hole, the height of every group of bolt hole are provided in two upright bars
Identical, two upright bars connect a T-type frame 4 by bolt hole, and the both ends of T-type frame pass through bolt 2 and are fixed in upright bar, can be according to need
The height wanted selects different bolts hole, and the lowermost bolt hole is apart from ground 10cm, and the bolt hole of the top is apart from ground
50cm.One snap ring 5 is fixed by hand the turn of the screw 3 in the front end of T-type frame, laser detection module is installed in snap ring, is twisted by hand
Fastened by screw；Laser detection module is cylindrical body, as laser emitter 6, and the front end of snap ring is locked by hand the turn of the screw.Laser
It is vertical with headstock that the laser of transmitter projects direction, vertical directive road on both sides of the road, highly in the range of 10~50cm.Master control mould
Block, sound and light alarm module and display module are arranged in motor vehicle, and main control module passes through outside a RVVP shielded signal bundle of lines vehicle
Laser detection module is connected with interior main control module, watches detection case at any time for testing staff.Use RVVP shielded signal line
The outer laser detection module of vehicle is connected with interior main control module, automobile 12V power supply power supply.
Laser emitter includes infrared detection laser, focus lamp and detector, and infrared detection laser is launched a branch of
After getting to surface to be measured unrestrained transmitting occurs for the tuning laser of about 1654nm wavelength, laser, and the light of the unrestrained transmitting in part is focused mirror
It receives and optical signal is converted to by electric signal by detector, it can be seen that the average methane concentration under laser institute passage path.
Test method: methane gas is utilized to a certain in t unable filter (TDLAS) principle
The absorption characteristic of specific wavelength laser can react in 0.1s.When laser beam is directed toward a direction, encounters object and reflects,
If methane air mass will absorb part and emit and reflect there are when methane air mass between infrared detection laser and reverberation
Laser (absorption number directly proportional to methane concentration), focus lamp receives the laser being reflected back and calculates its suction by detector
Yield obtains final measurement result.
The setting height of the laser detection module of the utility model and exists in the range of 10~50cm after gas leakage
Aerial to be identical, unilateral swinging traverse, detection range is within 100m, and no matter vehicle is traveling in which side of road
To on common urban road, being enough to complete no blind-spot detection, detection efficiency is high, accurate high.
Embodiment 2
A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage, as shown in Fig. 5-20, which includes combustion gas laser
Detector, the laser detecting apparatus include power supply of the whole machine, main control module and the laser emitter 6 connecting with main control module, acousto-optic report
Alert device 14 and touch display screen 13.One bracket 1 is installed in the front end of motor vehicle, bracket includes the square box of supporting leg and front end face
The supporting leg of frame, bracket is connect with the crossbeam under bottom of motor-vehicle disk.
Ball screw slide unit is set on the bracket, and ball screw slide unit includes lifting motor 85, ball screw 81, ball
Sliding rail, the upper end setting motor and shaft coupling of sliding rail is arranged in screw mandrel support seat 83, sliding block 7 and line slide rail 82, the front end face of bracket
Ball screw is stretched out in device assembly 84, motor and coupling assembly lower end, and ball screw support base, rolling is arranged in the lower section of ball screw
Ballscrew support base is fixed on bracket, plays fixed function；Sliding block is arranged on the slide rail, can be in the drive lower edge of electric machine
Sliding rail moves up and down.The control module of lifting motor is connected on main control module.In the front end Joining clasp 5 of sliding block, snap ring
Laser emitter is set, is fastened by hand the turn of the screw 3.The laser of laser emitter project direction correspond to left side that vehicle is advanced or
On the right side of person, laser emitter and headstock direction of travel are at 75 °~90 ° angles.
A preposition radar obstacle avoidance module 11 is connected on laser emitter, which is connected to main control module
On, when laser emitter is too low, image information, radar avoidance are acquired by the camera being mounted on forward laser light transmitter
The ultrasonic sensor of module senses that Chinese herbaceous peony has object that can bump against laser emitter, then the lifting motor of ball screw slide unit
Starting, allows laser emitter to increase.
Ball screw slide unit working principle: it gives ball screw one rotary motion by lifting motor, keeps sliding block real
Existing straight reciprocating motion, ball screw is to convert rotary motion to linear motion.Ball screw is by screw rod, nut and ball set
At.Its function is that rotary motion is converted to linear motion.It, can be the high load the case where due to the frictional resistance with very little
It is lower to realize high-precision linear motion.
For sliding block similar to rectangular, ball screw is arranged in the intermediate of sliding block, and lifting button is shown in touch display screen.
It is in order to which when special circumstances, testing staff can be with the lifting on operating display that ball screw slide unit, which is arranged,
Button is realized laser detection module raises or whereabouts carrying out avoiding barrier, reduces laser detection module to the greatest extent and is damaged by collision
Bad situation.
Embodiment 3
A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage, as shown in Fig. 5-14 and 19-24, in embodiment 2
Unlike, stabilizer is set on sliding block and electric rotary table, sliding block are mounted on electric rotary table.
Electric rotary table is made of rotary table top 91, pedestal 92 and stepper motor 93, and the stepper motor of electric rotary table is logical
Electric wire is crossed to be connected on main control module；The mounting hole of table top and pedestal distribution standard pitch-row, facilitates installation and combination；Electronic rotation
The transmission of turntable use worm gear structure, table top can any positive and negative rotation, driven by stepper motor, realize angle adjustment
Automation.Worm Wheel System is finished, angle adjustment is limitless.Stepper motor and Worm Wheel System part pass through import Gao Pin
The connection of matter yielding coupling excludes space and processing Form and position error.Standard RS232 interface facilitates signal to transmit.
Stabilizer includes the first swivel bearing 101, first annular bracket 102, the second swivel bearing 103 and the second annular branch
Frame 104, the stabilizer with it is identical with the stabilizer structure on camera in the prior art.
Sliding block fixes the bottom of electric rotary table similar to cuboid, in the lower end of the front end of sliding block threadably
Seat, the top of first annular bracket and the rotary table top of electric rotary table are fixed threadably, laser emitter
Snap ring and the second swivel bearing of stabilizer lower end are fixed threadably.
The design of stabilizer, be by special supporting structure keep laser emitter center of gravity stablize always it is constant, by two
A rotatable bearing and stabilizer bracket keep center of gravity constant.
In addition, three above-mentioned embodiments are arranged on motor vehicle, it also can be set, will prop up on electric vehicle
Frame is mounted on the vehicle frame of electric vehicle front end, as long as meeting the height of laser detector apart from 10~50 centimeters of ground
, the beneficial effects of the utility model equally may be implemented.
Other than above embodiments, two laser detection modules can be also set on bracket, an alignment vehicle is advanced
The left side in direction, the right side of an alignment vehicle traveling direction, single direction traveling can also realize both direction while detect.
Claims (9)
1. a kind of combustion gas buried pipeline leaks lateral Blind Test scanning means, it is characterised in that: the device includes laser detecting apparatus, is swashed
Optical detector includes main control module, laser detection module and sound and light alarm module, and laser detection module and sound and light alarm module are equal
It is connected on main control module；Laser detection module by bracket be arranged motor vehicle or electric vehicle front end apart from ground 10~
The height of 50cm, the laser of laser detection module project the angle of direction and motor vehicle or electric truck head direction of travel 45
Between~90 °.
2. a kind of combustion gas buried pipeline according to claim 1 leaks lateral Blind Test scanning means, it is characterised in that: laser
The laser of detection module projects the angle of direction and motor vehicle or electric truck head direction of travel at 90 °.
3. a kind of combustion gas buried pipeline according to claim 1 leaks lateral Blind Test scanning means, it is characterised in that: described
A display module is also connected on main control module, display module is connected on main control module using RVVP shielded signal line.
4. a kind of combustion gas buried pipeline according to claim 1 leaks lateral Blind Test scanning means, it is characterised in that: laser
Detector includes two laser detection modules, and it is headstock direction of travel that the laser of one of laser detection module, which projects direction,
Left side, the laser of another laser detection module project the right side that direction is headstock direction of travel.
5. a kind of combustion gas buried pipeline according to claim 1 leaks lateral Blind Test scanning means, it is characterised in that: described
Bracket includes leading flank and supporting leg, and supporting leg is fixed on motor vehicle or electric vehicle, and leading flank includes the upright bar of two sides, at two
Several groups bolt hole is opened up in upright bar respectively, the height of every group of bolt hole is identical；It is installed respectively by bolt hole at the both ends of T-type frame
On the leading flank of bracket, laser detection module is arranged on T-type frame.
6. a kind of combustion gas buried pipeline according to claim 1 leaks lateral Blind Test scanning means, it is characterised in that: laser
Detection module is arranged in a snap ring, and snap ring is connect with T-type bracket by hand the turn of the screw.
7. a kind of combustion gas buried pipeline according to claim 1 leaks lateral Blind Test scanning means, it is characterised in that: swashing
A preposition anti-collision radar system is connected on optical transmitting set, which is connected on main control module.
8. a kind of combustion gas buried pipeline according to claim 1 leaks lateral Blind Test scanning means, it is characterised in that: described
Ball screw slide unit is set on bracket, and ball screw slide unit includes lifting motor, ball screw, ball screw support base, sliding block
And line slide rail, the front end face of bracket are arranged sliding rail, the upper end setting lifting motor and coupling assembly of sliding rail, lifting motor and
Coupling assembly connects ball screw, and ball screw support base is arranged in the lower section of ball screw, and ball screw support base is fixed on
On bracket, sliding block is arranged on the slide rail, can move up and down under the drive of electric machine along sliding rail；Laser detection is set on sliding block
The control module of module, lifting motor is connected on main control module.
9. a kind of combustion gas buried pipeline according to claim 1-8 leaks lateral Blind Test scanning means, feature
It is: stabilizer bracket is set on sliding block and electric rotary table, sliding block are mounted on electric rotary table, the top of stabilizer bracket
It is connect with the rotary table top of electric rotary table, laser detection module is connected with stabilizer bracket the lowermost swivel bearing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821917100.0U CN209370853U (en) | 2018-11-21 | 2018-11-21 | A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821917100.0U CN209370853U (en) | 2018-11-21 | 2018-11-21 | A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340581A (en) * | 2018-11-21 | 2019-02-15 | 郑州如阳科技有限公司 | A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage |
| CN110630911A (en) * | 2019-10-09 | 2019-12-31 | 郑州如阳科技有限公司 | Transverse blind detection scanning device for gas buried pipeline leakage |
| US11619562B2 (en) * | 2020-10-06 | 2023-04-04 | Abb Schweiz Ag | Systems and methods for efficiently identifying gas leak locations |
-
2018
- 2018-11-21 CN CN201821917100.0U patent/CN209370853U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340581A (en) * | 2018-11-21 | 2019-02-15 | 郑州如阳科技有限公司 | A kind of lateral Blind Test scanning means of combustion gas buried pipeline leakage |
| CN109340581B (en) * | 2018-11-21 | 2024-04-09 | 郑州如阳科技有限公司 | Transverse blind test scanning device for gas buried pipeline leakage |
| CN110630911A (en) * | 2019-10-09 | 2019-12-31 | 郑州如阳科技有限公司 | Transverse blind detection scanning device for gas buried pipeline leakage |
| CN110630911B (en) * | 2019-10-09 | 2021-01-26 | 郑州如阳科技有限公司 | Transverse blind detection scanning device for gas buried pipeline leakage |
| US11619562B2 (en) * | 2020-10-06 | 2023-04-04 | Abb Schweiz Ag | Systems and methods for efficiently identifying gas leak locations |
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