CN202494516U - Infrared flame detector for combustor - Google Patents
Infrared flame detector for combustor Download PDFInfo
- Publication number
- CN202494516U CN202494516U CN201220042546XU CN201220042546U CN202494516U CN 202494516 U CN202494516 U CN 202494516U CN 201220042546X U CN201220042546X U CN 201220042546XU CN 201220042546 U CN201220042546 U CN 201220042546U CN 202494516 U CN202494516 U CN 202494516U
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- China
- Prior art keywords
- infrared
- flame
- filter glass
- sense channel
- output circuit
- Prior art date
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- 239000011521 glass Substances 0.000 claims abstract description 16
- 238000004880 explosion Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 244000249914 Hemigraphis reptans Species 0.000 claims description 12
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000005855 radiation Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000295 fuel oil Substances 0.000 abstract description 3
- 239000002737 fuel gas Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000005477 standard model Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Control Of Combustion (AREA)
Abstract
The utility model relates to combustion technologies and automatic control technologies of fuel oil and fuel gas, and discloses an infrared flame detector for a combustor. The infrared flame detector comprises a filter glass, an infrared photosensitive tube, a flame detection channel, a background detection channel, a comparison amplifier, a stability automatic regulator, an operational processor, a driver, a relay output circuit, a power supply, and an explosion-resistant housing. The filter glass is installed in a light waveband of 800nm to 1500nm. Infrared light is transmitted to the infrared photosensitive tube through the filter glass for photoelectric conversion, and then is connected to the flame detection channel. The background detection channel and the flame detection channel are connected to the comparison amplifier. The outputted signal is connected to the relay output circuit through the operational processor, the stability automatic regulator and the driver, and used to drive the relay output circuit. The infrared flame detector of the utility model is aimed at solving disturbing influences of background infrared radiation thereof and infrared radiation from neighboring flame in order to improve working stability and safe reliability of the infrared flame detector. An infrared flame detector having good anti-interference capability, high cost performance, good fire detection effects, stable performance and reliable security is provided.
Description
Technical field
The utility model relates to the combustion technology and the automatic control technology of fuel oil, combustion gas.Refer in particular to a kind of efficient, the safe and reliable infra red flame pick-up unit on the burner that is installed in fuel oil, combustion gas.
Technical background
At present, low purple fuel burners such as fields such as oil refining, chemical industry, new forms of energy use residual oil increase day by day, and it is bad that flame detector uses ultraviolet and brightness fire to examine effect, influences the safe reliability of burner operation.But infrared fire inspection commonly used is subject to the interference of background infrared radiation and adjacent flame infrared radiation, has influenced the application to infrared fire inspection.
Summary of the invention
The purpose of the utility model is to improve innovation and a kind of burner of designing is used the infra red flame detecting device to shortcoming in the technical background and problem.
The technical scheme of the utility model is a kind of infra red flame detecting device that comprises filter glass, infrared photosensitive tube, flame sense channel, background sense channel, comparison amplifier, degree of stability automatic regulator, arithmetic processor, driver, relay output circuit, power supply and explosion-resistant enclosure of structure, wherein:
Filter glass is installed between the 800nm-1500nm light wave; Infrared light is incident upon infrared photosensitive tube through filter glass to carry out connecting the flame sense channel after the opto-electronic conversion; The background sense channel is connected comparison amplifier with the flame sense channel, is connected with degree of stability automatic regulator and driver through arithmetic processor to drive the relay output circuit.
The utility model is intended to solve the disturbing effect of its background infrared radiation and adjacent flame infrared radiation, has improved the job stability and the safe reliability of infra red flame detecting device.Provide that a kind of antijamming capability is strong, cost performance is high, the inspection fire is effective, stable performance, safe and reliable infra red flame detecting device.
Description of drawings
Fig. 1 is the schematic diagram of the utility model infra red flame detecting device.
Fig. 2 is a new infrared flame detector integrated explosion proof system structural drawing.
Embodiment
Can know by accompanying drawing 1-2; The utility model comprises filter glass 1, infrared photosensitive tube 2, flame sense channel 3, background sense channel 4, comparison amplifier 5, degree of stability automatic regulator 6, arithmetic processor 7, driver 8, relay output circuit 9, power supply 1 and explosion-resistant enclosure, wherein:
The described burner of the utility model is used the infra red flame detecting device; It is characterized in that described explosion-resistant enclosure comprises a space housing that circuit elements device 12 is installed; Housing one side is provided with signal line outlet 11; The housing front end is provided with a cylindrical shell that infrared photosensitive tube 2 and filter glass 1 are installed, and cylindrical shell one side is provided with cooling air interface 13, and barrel front end is for detecting interface 14.
The utility model technical parameter
Electric grade: be applicable to 115VAC～230VAC (voltage tolerance :+10%～-15%, 50/60Hz)
Contact: two groups of SPDT contacts of isolating.Class rating 2A, at0.65 electric energy coefficient
Environment temperature :-40～+ 60 ℃
Maximum relative humidity: 90%RH is at+40 ℃
Degree of protection: IP65
The flame-out response time: less than 1 second (standard model).Can customize as requested At All Other Times;
Classification: OOCRXO
Detect response infrared spectral limit: 900nm-1300num
The infrared backlight degree is regulated wide: 500-20000uwcm2.
The utility model principle of work
Usually; Flame infrared radiation wavelength concentrates in the 800-1500nm wave band; The filter glass based on fuel type of infra red flame detecting device and component are selected to install between 800nm-1500nm, and IR incides photosensitive tube and carries out getting into treatment channel after the light-to-current inversion through filter glass.Treatment channel adopts the treating method of passage reference; Before flame produces; The background sense channel can according to IR intensity detect automatically and adjust output one baseline threshold; To be that reference value and the detected conversion flame of follow-up photosensitive tube detection signal compare and enlarge with the threshold signal parameter then; Through computing amplification and the automatic stability regulating circuit of electric signal, driving and relay output circuit, realize the judgement of " having " or " nothing " flare up fire again, thereby realize that stable, reliable flame detects.
Power circuit is that whole detector circuit provides working power.
The utility model adopts explosion-proof type shell, the degree of protection of IP65, monolithic construction, meets GB3836.1-2000 and GB3836.4-2000 relevant regulations.Can independently be installed in the various environment of demands of different such as inflammable and explosive, be used for flame monitoring, warning and the protection control of combustion apparatus such as industrial furnace, burner.Can use with all kinds of portfires and other system support.
The described embodiment of the utility model only is the description that preferred implementation of the present invention is carried out; Be not that design of the present invention and scope are limited; Do not breaking away under the preceding topic of design philosophy of the present invention, engineering technical personnel make technical scheme of the present invention in this area various modification and improvement all should fall into protection scope of the present invention; The technology contents that the present invention asks for protection all is documented in claims.
Claims (3)
1. a burner is used the infra red flame detecting device; It is characterized in that comprising filter glass (1), infrared photosensitive tube (2), flame sense channel (3), background sense channel (4), comparison amplifier (5), degree of stability automatic regulator (6), arithmetic processor (7), driver (8), relay output circuit (9), power supply (10) and explosion-resistant enclosure, wherein:
Filter glass (1) is installed between the 800nm-1500nm light wave; Infrared light is incident upon infrared photosensitive tube (2) through filter glass (1) to carry out connecting flame sense channel (3) after the opto-electronic conversion; Background sense channel (4) is connected comparison amplifier (5) with flame sense channel (3), is connected with degree of stability automatic regulator (6) and driver (8) through arithmetic processor (7) to drive relay output circuit (9).
2. burner according to claim 1 is used the infra red flame detecting device; It is characterized in that described explosion-resistant enclosure comprises a space housing that circuit elements device (12) is installed; Housing one side is provided with signal line outlet (11); The housing front end is provided with a cylindrical shell that infrared photosensitive tube (2) and filter glass (1) are installed, and cylindrical shell one side is provided with cooling air interface (13), and barrel front end is for detecting interface (14).
3. burner according to claim 1 is used the infra red flame detecting device, it is characterized in that described power supply (10) is made up of transformer and bridge rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220042546XU CN202494516U (en) | 2012-02-10 | 2012-02-10 | Infrared flame detector for combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220042546XU CN202494516U (en) | 2012-02-10 | 2012-02-10 | Infrared flame detector for combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494516U true CN202494516U (en) | 2012-10-17 |
Family
ID=47000741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220042546XU Expired - Fee Related CN202494516U (en) | 2012-02-10 | 2012-02-10 | Infrared flame detector for combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494516U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215327A (en) * | 2013-05-31 | 2014-12-17 | 通用电气公司 | System and method for determination of flames in a harsh environment |
| CN108626742A (en) * | 2017-03-17 | 2018-10-09 | 阿自倍尔株式会社 | Combustion control device and method for controlling combustion |
| WO2020125504A1 (en) * | 2018-12-17 | 2020-06-25 | 咖创意私人有限公司 | Coffee roasting method, device, storage medium, and coffee roaster |
-
2012
- 2012-02-10 CN CN201220042546XU patent/CN202494516U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215327A (en) * | 2013-05-31 | 2014-12-17 | 通用电气公司 | System and method for determination of flames in a harsh environment |
| CN108626742A (en) * | 2017-03-17 | 2018-10-09 | 阿自倍尔株式会社 | Combustion control device and method for controlling combustion |
| WO2020125504A1 (en) * | 2018-12-17 | 2020-06-25 | 咖创意私人有限公司 | Coffee roasting method, device, storage medium, and coffee roaster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20150525 Granted publication date: 20121017 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20201125 Granted publication date: 20121017 |
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| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20201125 Granted publication date: 20121017 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210525 Granted publication date: 20121017 |
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| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210525 Granted publication date: 20121017 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20211125 Granted publication date: 20121017 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20170210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |