CN105976555B - A kind of outside vapor deposition jet flames detection device and method - Google Patents
A kind of outside vapor deposition jet flames detection device and method Download PDFInfo
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- CN105976555B CN105976555B CN201610439087.1A CN201610439087A CN105976555B CN 105976555 B CN105976555 B CN 105976555B CN 201610439087 A CN201610439087 A CN 201610439087A CN 105976555 B CN105976555 B CN 105976555B
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- jet flames
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000007740 vapor deposition Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000002277 temperature effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005234 chemical deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The present invention relates to a kind of outside vapor deposition jet flames detection device and methods, it include holder, video camera is installed on holder, the delivery outlet of video camera connects with computer input port, the output interface of computer connects PLC controller, PLC controller is separately connected flame gas control valve and alarm module, video camera is by the collected flame transmission of video images of institute to computer, computer store while carrying out real-time analyzing processing to flame video image by the image processing module of computer, and sends control, alarm and display signal.The configuration of the present invention is simple is affected by environment small, it can be achieved that real-time monitoring to flame；Since video camera is visible light collection to the data acquisition of flame, signal acquisition is not by electromagnetic interference and ambient temperature effect, and data source is stablized, strong antijamming capability, and data conversion is easy；The present invention can also optimize processing by the analysis to flame course of injection to the technological parameter of following process.
Description
Technical field
The present invention relates to a kind of outside vapor deposition jet flames detection device and methods, belong to preform processing
Technical field.
Background technology
Outside vapor deposition technique in preform processing includes axial vapor deposition method VAD（Vapour
phase Axial Deposition）With stick outer chemical vapor deposition method OVD（outside vapor deposition）, external
Vapour deposition process has jet flames generation in process, and jet flames is burnt by mixed gas such as hydrogen and oxygen to be produced
It is raw.To ensure the safety and quality of deposition process, it is installed on flame detection sensor in the process equipment of VAD and OVD, now
Flame detector be by detect flame combustion process generate radiation light-wave come obtain flame temperature information and judge be
No burning.
Chinese patent literature CN105185027A is disclosed " flame detecting alarm method, system and device ".The document is public
A kind of flame detecting alarm method, system and device are opened.Wherein method and step includes：Obtain the detection of multiple flame detectors
The sensing data of number information and acquisition, plurality of flame detector is in quasi-distributed structure distribution, to all fire of acquisition
The sensing data of flame detector acquisition is normalized, and selects adjacent flame detector according to detection number and obtains correspondence
The normalization data of probe carries out similarity analysis.Similarity factor is calculated, if the value of similarity factor is in the first preset range
Inside then think that flame detector detects flame.
Chinese patent literature CN105354974A discloses " the flame detecting side based on three-wavelength infrared flame detector
Method ".The invention is using fire defector infrared induction module and alarm module the composition detection of three kinds of different wave lengths and warning device.
The signal detected using three kinds of different wavelength infrared sensors analyze and answers alarm signal according to analysis result the output phase
Number.
Above invention utilizes the radiation light-wave generated during sensor detection combustible combustion, then to detecting
Radiated wave signal, which is analyzed, then judges that flame whether there is.This not only needs multi-point that sensor is arranged, but also to sensing
The high temperature resistance of device requires height, if having obstacle such as transparent glass or sensor and quilt between sensor and measurand
It surveys object distance to change, then sensor detection results and actual conditions just will appear deviation.Lead to false alarm or fails to report
It happens.
Invention content
The technical problems to be solved by the invention are intended in view of the deficiency of the prior art, propose a kind of structure letter
It is single, the outside vapor deposition jet flames detection device and method of dependable performance.
The technical solution of jet flames detection device of the present invention is：Include holder, video camera, video camera are installed on holder
Delivery outlet connect with computer input port, the output interface of computer connects PLC controller, and PLC controller is separately connected fire
Flame gas control valve and alarm module, video camera carry out the collected flame transmission of video images of institute to computer, computer
Storage carries out real-time analyzing processing by the image processing module of computer to flame video image simultaneously, and sends control, report
Alert and display signal.
By said program, the video camera is installed near flame injection device, and the axis of camera lens with
The flame axis that flame injection device is sprayed is perpendicular.
By said program, the camera configuration has one or more.
By said program, the video camera is installed in seal bootr, and seal bootr inner cavity is connected with air cooling system.
By said program, the alarm module is audible-visual annunciator.
The technical solution of jet flames detection method of the present invention is：
Video camera is configured near flame injection device, by camera lens be aligned flame injection device to jet flames into
Row video image acquisition, by data line by video data transmission to computer, computer is by image processing module to flame
Video image carries out real-time analyzing processing, calculates the length or/and projected area of flame, and real-time display fire on a display screen
The image and data of flame, while the data of flame being compared with preset length in computer or/and area of flame threshold value, when
When the area of flame or/and length signals acquired exceeds predetermined threshold value, computer exports control signal to PLC controller, leads to
Cross flame gas control valve adjust jet flames size, or to flame gas control valve and alarm be simultaneously emitted by alarm and
Safe control signal closes the air source of flame gas.
By said program, the flame axis that axis and the flame injection device of the camera lens are sprayed mutually hangs down
Directly.
The beneficial effects of the present invention are：1, the configuration of the present invention is simple is affected by environment small, it can be achieved that reality to flame
When monitor；2, it is visible light collection to the data acquisition of flame due to video camera, signal acquisition is not by electromagnetic interference and environment
Temperature influences, and data source is stablized, strong antijamming capability, and data conversion is easy；3, since video camera is sustainable uninterrupted right
Scene carries out videograph, can intuitively reappear to fire defector process, the present invention can also be by flame course of injection
Analysis optimizes processing to the technological parameter of following process.
Description of the drawings
Fig. 1 is the structure diagram of apparatus of the present invention one embodiment.
Fig. 2 is that the projection of jet flames illustrates.
Fig. 3 is the use state diagram of the present invention.
Specific implementation mode
Apparatus and method of the present invention is described in further detail below in conjunction with attached drawing.
Jet flames detection device of the present invention includes holder, video camera 3 is installed on holder, video camera is one, described
Video camera be installed near flame injection device, and the blowtorch 2 of the axis of camera lens and flame injection device is sprayed
1 axis perpendicular of flame penetrated.Video camera is installed in seal bootr 18, and seal bootr inner cavity is connected with air cooling system.It takes the photograph
The delivery outlet of camera connects with 4 input port of computer, and the computer is industrial control computer, the output interface of computer
PLC controller 5 is connected, PLC controller is separately connected flame gas control valve island 7 and alarm module 6, and video camera will be collected
Flame transmission of video images to computer, computer store while being regarded to flame by the image processing module of computer
Frequency image carries out real-time analyzing processing, and sends control, alarm and display signal.
Apparatus of the present invention course of work and detection method are：Real-time video letter when cameras capture torch flame is burnt
Number, while sending flame vision signal to industrial control computer 4.Computer carries out it after receiving flame vision signal
Analyzing processing is described the boundary 12 of flame, as shown in Figure 2.Computer is by image processing module to flame video figure
As carrying out real-time analyzing processing, the length and projected area of flame, and the image of real-time display flame on a display screen are calculated
And data, while the data of flame being compared with preset area of flame and length threshold in computer, when the fire acquired
When flame area or length signals exceed predetermined threshold value, computer exports control signal to PLC controller, is controlled by flame gas
The size of valve regulation jet flames, or it is simultaneously emitted by alarm and safe control signal to flame gas control valve and alarm,
The air source of flame gas is closed, prevents fuel gas from spreading in air.Example 1：Length of flame L threshold values are set as 100mm, when
Video acquisition to flame screen graphic length L then assert that flame has been in OFF state less than 100mm, if combustion gas at this time
The state machines that body control valve is still in out are judged as equipment operation irregularity, export alarm command and cut off air source.Example 2：
Corresponding flame projected area preset value is set according to process requirements, flame graphics area threshold value is set as 10000mm2, work as meter
Calculation machine visual determination area of flame is less than 10000mm2, and continue for some time, then judge that flame combustion is unstable, can lead at this time
Increase fuel gas flow is crossed, adjusting the control measure such as process gas proportioning makes flame combustion tend towards stability, to meet deposition work
Skill requirement.
Fig. 3 is the schematic diagram that flame detecting device uses on OVD depositing devices, and motor is driven by upper and lower collet 13,16
Plug 15 does rotary motion, and flame injection device 17 moves up and down.Be fixed on torch flame injection direction on lamp bracket perpendicular to
Plug axis, chemical deposition are carried out along entire plug circumferential surface, are formed prefabricated rod cladding 14, are used between video camera 3 and flame
Seal bootr heat-protecting glass is separated for use in the entire chemical deposition process of acquisition.
Claims (4)
1. a kind of outside vapor deposition jet flames detection device, it is characterised in that include holder, camera shooting is installed on holder
The delivery outlet of machine, video camera connects with computer input port, and the output interface of computer connects PLC controller, PLC controller point
Not Lian Jie flame gas control valve and alarm module, the collected flame transmission of video images of institute arrives computer, counted by video camera
Calculation machine store while carrying out real-time analyzing processing to flame video image by the image processing module of computer, and sends
Control, alarm and display signal；The video camera is installed near flame injection device, and the axis of camera lens with
The flame axis that flame injection device is sprayed is perpendicular；The video camera is installed in seal bootr, seal bootr inner cavity and sky
Air cooling system is connected.
2. outside vapor deposition jet flames detection device as described in claim 1, it is characterised in that the video camera
Configured with one or more.
3. outside vapor deposition jet flames detection device as described in claim 1 or 2, it is characterised in that the alarm
Module is audible-visual annunciator.
4. a kind of outside vapor deposition jet flames detection method, it is characterised in that
Video camera is configured near flame injection device, and camera lens alignment flame injection device regards jet flames
Frequency Image Acquisition, by data line by video data transmission to computer, computer is by image processing module to flame video
Image carries out real-time analyzing processing, calculate the length or/and projected area of flame, and real-time display flame on a display screen
Image and data, while the data of flame being compared with preset length in computer or/and area of flame threshold value, when being adopted
When the area of flame or/and length signals of collection exceed predetermined threshold value, computer exports control signal to PLC controller, passes through fire
Flame gas control valve adjusts the size of jet flames, or is simultaneously emitted by alarm and safety to flame gas control valve and alarm
Signal is controlled, the air source of flame gas is closed；The fire that the axis of the camera lens is sprayed with flame injection device
Flame axis perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439087.1A CN105976555B (en) | 2016-06-20 | 2016-06-20 | A kind of outside vapor deposition jet flames detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439087.1A CN105976555B (en) | 2016-06-20 | 2016-06-20 | A kind of outside vapor deposition jet flames detection device and method |
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| Publication Number | Publication Date |
|---|---|
| CN105976555A CN105976555A (en) | 2016-09-28 |
| CN105976555B true CN105976555B (en) | 2018-09-11 |
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| CN201610439087.1A Active CN105976555B (en) | 2016-06-20 | 2016-06-20 | A kind of outside vapor deposition jet flames detection device and method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111014710B (en) * | 2019-12-30 | 2023-02-03 | 西安赛隆金属材料有限责任公司 | Device for detecting flame diameter of plasma arc and control method |
| CN112508894B (en) * | 2020-11-27 | 2023-10-03 | 江苏徐工工程机械研究院有限公司 | Spraying flame flow online detection method, device and system, industrial personal computer and storage medium |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07198966A (en) * | 1993-12-28 | 1995-08-01 | Furukawa Electric Co Ltd:The | Synthesizing method of porous preform for optical fiber and device therefor |
| JPH07223834A (en) * | 1994-02-17 | 1995-08-22 | Furukawa Electric Co Ltd:The | Method for synthesizing porous preform for optical fiber and apparatus therefor |
| JP3869276B2 (en) * | 2002-01-25 | 2007-01-17 | 古河電気工業株式会社 | Optical fiber preform manufacturing method |
| JP2003313042A (en) * | 2002-02-22 | 2003-11-06 | Sumitomo Electric Ind Ltd | Apparatus for manufacturing glass particulate deposit |
| JP2005104800A (en) * | 2003-10-01 | 2005-04-21 | Sumitomo Electric Ind Ltd | Heating method of glass tube |
| KR100640465B1 (en) * | 2005-09-16 | 2006-11-01 | 삼성전자주식회사 | Apparatus and method for vapor axial deposition |
| JP5294354B2 (en) * | 2011-04-18 | 2013-09-18 | 古河電気工業株式会社 | Method for manufacturing optical fiber porous preform |
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