CN110501124A - The laser gas of program-controlled lifting and horizontal sweep detects cradle head device - Google Patents
The laser gas of program-controlled lifting and horizontal sweep detects cradle head device Download PDFInfo
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- CN110501124A CN110501124A CN201910780547.0A CN201910780547A CN110501124A CN 110501124 A CN110501124 A CN 110501124A CN 201910780547 A CN201910780547 A CN 201910780547A CN 110501124 A CN110501124 A CN 110501124A
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- control module
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- cradle head
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/38—Investigating fluid-tightness of structures by using light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The laser gas detection cradle head device of program-controlled lifting and horizontal sweep is related to laser gas detecting instrument technical field.The present invention is by holder, electro-hydraulic lift bar, stored program controlled composition；Photographic device and laser gas detector are installed, and photographic device is consistent with the direction of laser gas detector on holder；Stored program controlled is by monitoring objective locating module, height control module, cradle head control module, alarm module, image capture module composition.It realizes that holder used in the present invention and laser gas detector dramatically reduce quantity when monitoring valve as much than conventional method and saved cost, while improving the detection accuracy of combustible gas leakage.
Description
Technical field
This patent is related to laser gas detecting instrument technical field.
Background technique
Pipeline network of fuel gas in city operation and maintenance are the important components for ensureing city gas security application, are that city occupies
The basic guarantee that the people live and work in peace and contentment.By taking natural valve station as an example, natural valve station is long-distance transport pipes terminal gas distribution station and city
Receiving station, has purification, pressure regulation, storage function, and the normal operation at natural valve station is significant to city production safety.
The outdoor semi-outdoor environment of point sensor should not be installed at natural valve station etc., according to the nature of Gas diffusion
Attribute, when natural gas leaking occurs, since leakage gas is affected by ambient windstream, gas leakage diffusion is fast, and natural
Valve station itself has the characteristics that instrument is more, node mostly interlocks with pipeline, brings to the practical leakage situation of accurate probe gas
It is inconvenient.
In the prior art, under the fire-proof and explosion-proof equal special environment conditions in natural valve station, swashed using advanced semiconductor
For optical detector technology, it can be achieved that laser beam active telemetering routine inspection mode, detection accuracy, detection efficiency are higher, patrol officer do not have into
Inspection work can be completed by entering detection zone.According to the conclusion obtained in practical applications to laser gas detection holder, examining
When survey laser gas detection holder elevation-depression angle it is excessive when, since natural gas itself is lighter than air, natural valve station it is special
Environmental aspect, leakage gas itself influence the gas concentration value and practical leakage concentration that diffusion is fast, detects vulnerable to ambient windstream
Value difference is larger, gas leakage concentration value cannot be accurately detected, to combustion gas door station valve leak actual state cannot be fed back
To natural valve station inspection functional department；Laser gas detection cradle head device is usually only fixed on a position in the prior art
On, natural gas storing and the critical valves of conveying are monitored by certain angle, and the elevation angle and the angle of depression in practical application
Scanning do not meet the physical features of natural gas leaking, early warning, most suitable natural gas leaking detection can not accurately be carried out
Means are to carry out horizontal laser light gas scanning probe in the position of emphasis monitoring valve.
In the case where all using horizontal laser light gas scanning probe, the prior art is not improved, will lead to installation
Holder and laser gas detection device quantity increase, in view of the deficiencies in the prior art, program-controlled lifting of the invention and level
The laser gas of scanning detects cradle head device, can by process control hydraulic lifting arm, hydraulic lifting arm shrinkage limit away from
The holder of 50 centimeters installation horizontal sweep from the ground installs laser gas additional in the shooting direction for the photographic device that holder carries and visits
Device is surveyed, there is the Centralized Monitoring of certain altitude difference in the valve node vertical direction to solve the problems, such as natural valve station pipe network,
Realize that holder used in the present invention and laser gas detector are dramatically reduced than conventional method when monitoring valve as much
Quantity has saved cost.
Shared technology explanation
Electro-hydraulic lift bar is applicable to push away again, line (or reciprocating rotary certain angle) movement is straightened, it can also be used on need
It rises, decline or clamp the place of working substance, and the concentration or process control of remote high-altitude and dangerous area can be carried out.Extensively
It is general power source applied to departments such as metallurgy, mine, coal, electric power, machinery, grain, cement, chemical industry, water conservancy, transports.
Its working principle is that: Electrohydraulic push rod is using motor as power source, by double-direction gearpump pressure oil output, through oil-way integrated block
Control, until oil cylinder, realizes the reciprocating motion of piston rod.Electro-hydraulic lift bar has self-locking function, the oil circuit collection of Electrohydraulic push rod
In blocking, pressure self-locking mechanism is devised, motor stops, and piston rod can be self-locking on certain position, is in state of pressure keeping.With electricity
Dynamic mechanical push rods are compared, and precision is high, and thrust is larger, and movement is more steady, and the use for meeting detecting instrument fixed point cycle detection is wanted
It asks.
In patent of invention " the laser gas detection dress for having compensated distance function and concentration offsets function applied before
Set " in propose methane oxidizing archaea detection and positioning are carried out in such a way that ground proximity is swept away method.This method considers natural gas
The natural quality of diffusion cuts tested region with horizontal laser beam, can quick and precisely detect methane gas leakage concentration.The present invention
Continue this detection thinking, can avoid the problem of the laser detection equipment detection leakage concentration inaccuracy of existing market, utilize electricity
The linear motion of hydrodynamic pressure elevating lever in vertical direction realizes the fixed point cycle detection to natural valve station.
Summary of the invention
In view of the deficiencies in the prior art, the laser gas detection holder dress of program-controlled lifting and horizontal sweep of the invention is realized
It sets by holder, electro-hydraulic lift bar, stored program controlled composition；Photographic device and laser gas detector are installed on holder, and
Photographic device is consistent with the direction of laser gas detector；Stored program controlled is by monitoring objective locating module, height control module, cloud
Platform control module, alarm module, image capture module composition；
Monitoring objective locating module records the height of monitored valve, and sustained height can recorde multiple monitored valve numbers；
Height control module is responsible for controlling electro-hydraulic lift bar change height in a manner of taking turn according to the height for being monitored valve
Degree, every time to receive the signal transformation height that the scanning that cradle head control module sends is completed, and at the end of converting height to
Cradle head control module sends the signal that altitude conversion terminates；
The transverse direction that cradle head control module is responsible for the signal enabling holder terminated according to the altitude conversion that height control module is sent is swept
It retouches, and sends the signal that scanning is completed to height control module after transversal scanning completion；
Laser gas detector is with holder transversal scanning, when having detected natural gas leaking air mass, issues gas to alarm module
Body leakage signal；Alarm module issues warning information after being connected to gas leakage signal and issues pause scanning to cradle head control module
Signal；Alarm module issues the signal for acquiring image to image capture module after being connected to gas leakage signal；
Image capture module controls the photographic device acquisition image installed on holder, photographic device after receiving the signal for acquiring image
Image capture module sends the signal continued to scan on to cradle head control module after acquisition image.
Beneficial effect
Change in the existing laser gas detection cradle head device detection process of market that elevation-depression angle is larger, detection vertical direction is upper
Set the status of single, non-programmable control.It is ingenious to be run with the high-precision and stable of electro-hydraulic lift bar in vertical direction,
Laser gas detection holder is fixed on electro-hydraulic lift bar, realizes and more planes in the pipe network region at natural valve station is examined
It surveys, it can be achieved that a multi-purpose purpose, saves the buying of instrument compared with traditional semiconductor laser gas detects cradle head device
Cost, the device based on the combination of laser holder can preferably exclude that gas diffusion velocity caused by outside environmental elements is very fast, lets out
The influence that gas leakage bulk concentration changes greatly reduces the rate of false alarm of laser holder detection gas leakage concentration.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Legend:
A holder；B electro-hydraulic lift bar；C stored program controlled；The ground D；E is monitored valve；F natural gas leaking air mass；
10 photographic devices；11 laser gas detectors；30 monitoring objective locating modules；31 height control modules；32 cradle head controls
Module；33 alarm modules；34 image capture modules.
Specific implementation
Referring to Fig. 1, realize the laser gas detection cradle head device of program-controlled lifting and horizontal sweep of the invention by holder A, it is electronic
Hydraulic lifting arm B, stored program controlled C composition；Photographic device 10 and laser gas detector 11 are installed on holder A, and image dress
It is consistent with the direction of laser gas detector 11 to set 10；Stored program controlled C is by monitoring objective locating module 30, height control module
31, cradle head control module 32, alarm module 33, the composition of image capture module 34；
Monitoring objective locating module 30 records the height of monitored valve E, and sustained height can recorde multiple monitored valve E and compile
Number；
The height that height control module 31 is responsible for the monitored valve E of basis is controlled electro-hydraulic lift bar B in a manner of taking turn and changed
And of Varying Depth every time to receive the signal transformation height that the scanning that cradle head control module 32 is sent is completed, and is tied in transformation height
Shu Shixiang cradle head control module 32 sends the signal that altitude conversion terminates；
Cradle head control module 32 is responsible for the cross of the signal enabling holder A terminated according to the altitude conversion that height control module 31 is sent
The signal that scanning is completed is sent to height control module 31 to scanning, and after transversal scanning completion；
Laser gas detector 11 is with holder transversal scanning, when having detected natural gas leaking air mass F, sends out to alarm module 33
Gas leakage signal out；Alarm module 33 issues warning information after being connected to gas leakage signal and issues to cradle head control module 32
Suspend the signal of scanning；Alarm module 33 issues the letter for acquiring image to image capture module 34 after being connected to gas leakage signal
Number；
Image capture module 34 controls the acquisition image of photographic device 10 installed on holder A after receiving the signal for acquiring image, takes the photograph
The signal that continues to scan on is sent to cradle head control module 32 as device 10 acquires after image image capture module 34.
Claims (1)
1. the laser gas of program-controlled lifting and horizontal sweep detects cradle head device, it is characterised in that by holder, electro-hydraulic lift
Bar, stored program controlled composition；Photographic device and laser gas detector, and photographic device and laser gas detection are installed on holder
The direction of device is consistent；Stored program controlled is by monitoring objective locating module, height control module, cradle head control module, alarm module, figure
As acquisition module forms；
Monitoring objective locating module records the height of monitored valve, and sustained height can recorde multiple monitored valve numbers；
Height control module is responsible for controlling electro-hydraulic lift bar change height in a manner of taking turn according to the height for being monitored valve
Degree, every time to receive the signal transformation height that the scanning that cradle head control module sends is completed, and at the end of converting height to
Cradle head control module sends the signal that altitude conversion terminates；
The transverse direction that cradle head control module is responsible for the signal enabling holder terminated according to the altitude conversion that height control module is sent is swept
It retouches, and sends the signal that scanning is completed to height control module after transversal scanning completion；
Laser gas detector is with holder transversal scanning, when having detected natural gas leaking air mass, issues gas to alarm module
Body leakage signal；Alarm module issues warning information after being connected to gas leakage signal and issues pause scanning to cradle head control module
Signal；Alarm module issues the signal for acquiring image to image capture module after being connected to gas leakage signal；
Image capture module controls the photographic device acquisition image installed on holder, photographic device after receiving the signal for acquiring image
Image capture module sends the signal continued to scan on to cradle head control module after acquisition image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910780547.0A CN110501124A (en) | 2019-08-23 | 2019-08-23 | The laser gas of program-controlled lifting and horizontal sweep detects cradle head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910780547.0A CN110501124A (en) | 2019-08-23 | 2019-08-23 | The laser gas of program-controlled lifting and horizontal sweep detects cradle head device |
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| Publication Number | Publication Date |
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| CN110501124A true CN110501124A (en) | 2019-11-26 |
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ID=68588879
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| CN201910780547.0A Pending CN110501124A (en) | 2019-08-23 | 2019-08-23 | The laser gas of program-controlled lifting and horizontal sweep detects cradle head device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967153A (en) * | 2019-12-04 | 2020-04-07 | 北京无线电计量测试研究所 | Automatic inspection system and method for gas lock well |
| CN111272698A (en) * | 2020-03-25 | 2020-06-12 | 浙江浙能天然气运行有限公司 | Natural gas leakage monitoring system and monitoring method |
| CN112734967A (en) * | 2020-11-30 | 2021-04-30 | 国网北京市电力公司 | Cable tunnel's inspection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967153A (en) * | 2019-12-04 | 2020-04-07 | 北京无线电计量测试研究所 | Automatic inspection system and method for gas lock well |
| CN111272698A (en) * | 2020-03-25 | 2020-06-12 | 浙江浙能天然气运行有限公司 | Natural gas leakage monitoring system and monitoring method |
| CN112734967A (en) * | 2020-11-30 | 2021-04-30 | 国网北京市电力公司 | Cable tunnel's inspection device |
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Application publication date: 20191126 |
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