CN107237983A - Natural gas leaking detects laser detector - Google Patents
Natural gas leaking detects laser detector Download PDFInfo
- Publication number
- CN107237983A CN107237983A CN201710512209.XA CN201710512209A CN107237983A CN 107237983 A CN107237983 A CN 107237983A CN 201710512209 A CN201710512209 A CN 201710512209A CN 107237983 A CN107237983 A CN 107237983A
- Authority
- CN
- China
- Prior art keywords
- natural gas
- gas leaking
- laser detector
- remote monitoring
- processing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
-
- 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
Abstract
The present invention discloses a kind of natural gas leaking detection laser detector, including central processing unit, power supply, laser methane sensor, digital-to-analogue dress parallel operation, memory, LCD touch screen and warning device, laser methane sensor are connected with digital analog converter, the power supply, digital analog converter, LCD touch screen and warning device are connected with central processing unit respectively；Also include remote monitoring system, the remote monitoring system includes remote monitoring terminal and wireless transport module, and the wireless transport module is connected with central processing unit.The natural gas leaking detection laser detector gas-selectively of the present invention is good；Instrumentation is difficult to be influenceed and aging by pernicious gas；Fast response time, stability is good；Explosion-proof is good, and signal to noise ratio is high, and service life is long, and measurement accuracy is high；Have a wide range of application, be adapted to popularization and application.
Description
Technical field
The invention belongs to natural gas leaking detection technique field, and in particular to a kind of natural gas leaking detection laser detection dress
Put.
Background technology
It is domestic at present that portable, pocket and fixed 3 class methane concentration detector are generally used to gas leakage detection,
Other gases such as CO, C02 and H20 and live physical condition (such as wetness, covering and wind are highly susceptible in detection process
To etc.) interference effect, cause flase drop and judge fail.Existing Portable leakage detector requires that probe is placed in the ring of combustion gas
In border, directly contacted with combustion gas.In actual field, it is commonly encountered pipeline or facility is difficult to reach, or even (such as enclosure wall can not be reached
Interior, in flower nursery, above river, high building external riser, inside room etc.) situation, this allows for pipeline network leak routing inspection efficiency not
Height abandons inspection to some pipeline sections, and hidden danger is carried out to gas pipeline safety belt.
The content of the invention
Goal of the invention：In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of simple in construction, operation side
Just, accurate natural gas leaking detection laser detector is detected.
Technical scheme：In order to realize foregoing invention purpose, the technical solution adopted by the present invention is as follows：
A kind of natural gas leaking detects laser detector, it is characterised in that：Including central processing unit, power supply, laser first
Alkane sensor, digital-to-analogue dress parallel operation, memory, LCD touch screen and warning device, laser methane sensor connect with digital analog converter
Connect, the power supply, digital analog converter, LCD touch screen and warning device are connected with central processing unit respectively；Also include remote monitoring
System, the remote monitoring system includes remote monitoring terminal and wireless transport module, the wireless transport module and centre
Manage device connection.
Preferably, the warning device includes buzzer, vibrations motor and/or light emitting diode, the buzzer, shake
Dynamic motor and light emitting diode are connected with central processing unit respectively.
Preferably, being provided with signal amplifier between the digital analog converter and laser methane sensor.
Preferably, the signal amplifier is noiselike signal amplifier.
Preferably, the wireless transport module is 3G, 4G or Wifi transport module.
Preferably, the remote monitoring terminal is mobile phone, tablet personal computer or PC.
Beneficial effect：Compared with prior art, the present invention has advantages below：
The natural gas leaking detection laser detector of the present invention has following 5 advantages：1. gas-selectively is good；2. examine
Instrument is surveyed to be difficult to be influenceed and aging by pernicious gas；8. fast response time, stability is good；4. explosion-proof is good, and signal to noise ratio is high, makes
With long lifespan, measurement accuracy height；5. have a wide range of application, be adapted to popularization and application.
Brief description of the drawings
Fig. 1 is natural gas leaking detection laser detector structural schematic block diagram.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, embodiment using technical solution of the present invention as
Under the premise of implemented, it should be understood that these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.
As shown in figure 1, a kind of natural gas leaking detection laser detector, including central processing unit, power supply, laser methane
Sensor, digital-to-analogue dress parallel operation, memory, LCD touch screen and warning device, laser methane sensor are connected with digital analog converter,
Power supply, digital analog converter, LCD touch screen and warning device are connected with central processing unit respectively；Also include remote monitoring system, far
Range monitoring system includes remote monitoring terminal and wireless transport module, and wireless transport module is connected with central processing unit.Memory
Storage detection data, it is convenient subsequently to be checked and analyzed.
Warning device includes buzzer, vibrations motor and/or light emitting diode, the buzzer, vibrations motor and luminous
Diode is connected with central processing unit respectively, and in the critical value that methane numerical value is set beyond central processing unit, buzzer is sent
Sound, lumination of light emitting diode, while shaking motor starting produces vibrations, points out testing staff's Methane in Air exceeded, naturally
Air pipe has leakage situation.
Signal amplifier is provided between digital analog converter and laser methane sensor.Signal amplifier is believed for low noise
Number amplifier.
Wireless transport module is 3G, 4G or Wifi transport module, and different transmission means can be selected according to distance,
It is convenient closely and to be at a distance controlled.
Remote monitoring terminal is mobile phone, tablet personal computer or PC, right gas leakage laser can be examined by terminal device
Survey device and realize remote control,
In order to prevent flase drop, track walker has found gas concentration after exceeded, it is necessary to adjacent at alarm in routine testing
The methane value and fuel gas value of pipe trench are detected.Now by taking the coal gas detection situation of Tengzhou City as an example, city's gas ductwork is current
The defeated medium of pipe be natural gas, the detection device used before 20l0 is hand-held PPM detectors, detection range for 0~
100%, detection mode is diffusion type, and environment temperature is 20~40 DEG C, and humidity is 20%~90%, and supply voltage is 220V.
After in March, 2010 Imported Natural Gas leak detection laser detector, begin to explore how to prevent flase drop and other survey meters
With the use of the problem of, by actual field application, form following fuel gas leakage detection method：
(it is set as 20ppm) after track walker's hand-held PPM detectors detect methane value exceeded alarm, can be with natural
The CH4 values of gas facility and adjacent pipe trench of the gas leakage detection laser detector detection in the range of alarm 30m, it is determined that leakage
C02 values (no pipe trench is not required to detection) are detected after source, frequency modulation again, if C02 values are more than 0.25 times of CH4 values, be can determine that as coal gas
Caused by leakage.Staff has carried out checking analysis or excavated to all data that 2010 years detected in this mode, its
In be not detected by CH4 alarm be 26 times, through laser methane it is distant away from C02 values after detection be more than CH4 0.25 times of alarm be 53
It is secondary.Rob after maintenance personal excavated according to the source of leaks detected, accurately have found gas leakage position and pipeline is carried out
Maintenance.In addition, false alarm 4 times at without gas leakage of hand-held PPM detectors, in the gas leak adjacent pipe trench of brighter
Locate false alarm 3 times, especially neighboringly descend at municipal systems pipe trench false alarm up to 7 times, and the response time is significantly longer.
The natural gas leaking detection laser detector of the present invention can detect that, from the methane leaked out at a distance, it is significantly
Ground improves the efficiency and security of walking inspection, uses natural gas leaking to detect that laser detector can originally can not
The local inspection for reaching or being difficult to reach becomes possible to., can by being used cooperatively with the vehicles and other detecting instruments
To greatly improve efficiency, accuracy and the pipe network coverage rate of gas leakage detection.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of natural gas leaking detects laser detector, it is characterised in that：Including central processing unit, power supply, laser methane
Sensor, digital-to-analogue dress parallel operation, memory, LCD touch screen and warning device, laser methane sensor are connected with digital analog converter,
The power supply, digital analog converter, LCD touch screen and warning device are connected with central processing unit respectively；Also include remote monitoring system
System, the remote monitoring system includes remote monitoring terminal and wireless transport module, and the wireless transport module is handled with center
Device is connected.
2. natural gas leaking according to claim 1 detects laser detector, it is characterised in that：The warning device bag
Include buzzer, vibrations motor and/or light emitting diode, the buzzer, vibrations motor and light emitting diode respectively with centre
Manage device connection.
3. natural gas leaking according to claim 1 detects laser detector, it is characterised in that：In the digital-to-analogue conversion
Signal amplifier is provided between device and laser methane sensor.
4. natural gas leaking according to claim 3 detects laser detector, it is characterised in that：The signal amplifier
For noiselike signal amplifier.
5. natural gas leaking according to claim 1 detects laser detector, it is characterised in that：It is described to be wirelessly transferred mould
Block is 3G, 4G or Wifi transport module.
6. natural gas leaking according to claim 1 detects laser detector, it is characterised in that：The remote monitoring is whole
Hold as mobile phone, tablet personal computer or PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710512209.XA CN107237983A (en) | 2017-06-28 | 2017-06-28 | Natural gas leaking detects laser detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710512209.XA CN107237983A (en) | 2017-06-28 | 2017-06-28 | Natural gas leaking detects laser detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107237983A true CN107237983A (en) | 2017-10-10 |
Family
ID=59991674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710512209.XA Pending CN107237983A (en) | 2017-06-28 | 2017-06-28 | Natural gas leaking detects laser detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107237983A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630897A (en) * | 2019-01-16 | 2019-04-16 | 湖南普奇地质勘探设备研究院（普通合伙) | A kind of anticlogging intelligent pipeline |
-
2017
- 2017-06-28 CN CN201710512209.XA patent/CN107237983A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630897A (en) * | 2019-01-16 | 2019-04-16 | 湖南普奇地质勘探设备研究院（普通合伙) | A kind of anticlogging intelligent pipeline |
| CN109630897B (en) * | 2019-01-16 | 2020-10-02 | 湖南普奇水环境研究院有限公司 | Prevent intelligent pipeline of jam |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171010 |