CN202494521U - Ultraviolet flame detector for combustor - Google Patents
Ultraviolet flame detector for combustor Download PDFInfo
- Publication number
- CN202494521U CN202494521U CN2012200404482U CN201220040448U CN202494521U CN 202494521 U CN202494521 U CN 202494521U CN 2012200404482 U CN2012200404482 U CN 2012200404482U CN 201220040448 U CN201220040448 U CN 201220040448U CN 202494521 U CN202494521 U CN 202494521U
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- China
- Prior art keywords
- ultraviolet
- transformer
- flame
- signal processor
- filter glass
- 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.)
- Expired - Fee Related
Links
- 239000011521 glass Substances 0.000 claims abstract description 14
- 238000005070 sampling Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007706 flame test Methods 0.000 description 1
- 239000000446 fuel Substances 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
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000005477 standard model Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Control Of Combustion (AREA)
Abstract
The utility model relates to an ultraviolet flame detector for a combustor. The flame detector comprises a power supply circuit, a bridge rectifier, a signal processor, a driving amplifier, an ultraviolet background light intensity regulator, a backlight signal regulator, a sampling amplifier, an ultraviolet photosensitive tube, an ultraviolet light filter glass, and a detector explosion-resistant housing. The power supply circuit comprises a protective tube, a power indicator, a resistor, and a transformer. An inputted alternating-current power supply is subjected to voltage reduction through the transformer, then is connected to the bridge rectifier, the signal processor and the driving amplifier, and is further connected to the sampling amplifier and the ultraviolet photosensitive tube after being subjected to the voltage reduction through the transformer. The ultraviolet background light intensity regulator is connected to the signal processor. The ultraviolet light filter glass is installed in a waveband of 180nm to 300nm. Ultraviolet from flame is transmitted to the ultraviolet photosensitive tube through the filter glass for photoelectric signal conversion, and is connected to an output driving and amplifying circuit after being processed and amplified to drive the relay to work. The ultraviolet flame detector is available for use with various ignition devices and other systems. The ultraviolet flame detector of the utility model has reliable performance and good anti-interference capability.
Description
Technical field
The utility model relates to fuel oil, the combustion technology of combustion gas and flame detector.Refer in particular to and be installed in combustion gas, a kind of efficient, the safe and reliable ultraviolet flame pick-up unit on the burner of fuel oil.
Technical background
Ultraviolet flame detector applies scope is wide, but the ultraviolet flame detecting device is subject to contain in the products of combustion a large amount of C02 or water vapour disturbing effect.Reliability is not high, for industrial furnace, and the complicated combustion case industrial furnace down of medium in the firing chamber especially, the flame detection reliability is not high, the security of influence use.The ultraviolet flame detecting device lacks small-signal processing and antijamming capability at present.
Summary of the invention
The purpose of the utility model is improved and is designed to described shortcoming of technical background and problem, and burner is used ultraviolet flame detector.
The technical scheme of the utility model is a kind of power circuit, bridge rectifier, signal processor, driving amplifier of comprising of structure; Ultraviolet background light intensity equalizer, backlight signal regulator; The flame detector of sampling amplifier, ultraviolet light sensing tube, ultraviolet light filter glass and detecting device explosion-proof casing, wherein:
Power circuit comprises protective tube; Power light; Resistance and transformer; Input ac power connects bridge rectifier, signal processor and driving amplifier after the transformer step-down, also connect sampling amplifier and ultraviolet light sensing tube after the transformer step-down, and ultraviolet background light intensity equalizer connects signal processor; And the ultraviolet light filter glass is installed between the 180nm-300nm wave band, and the flame ultraviolet ray is mapped to ultraviolet light sensing tube through the filtration eyeglass and carries out the photosignal conversion, connects output in treated amplification and drives amplifying circuit, the work of driving relay.
Wherein 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.Dependable performance, antijamming capability is strong.
Description of drawings
Fig. 1 is a flame test section circuit diagram.
Fig. 2 is a new ultra-violet flame detector outside drawing.
Embodiment
By accompanying drawing 1; 2 can know, the utility model comprises power circuit, bridge rectifier 5, signal processor 6 driving amplifiers 7, ultraviolet background light intensity equalizer 8, backlight signal regulator 9; Sampling amplifier 10 ultraviolet light sensing tubes 11, ultraviolet light filter glass 12 and detecting device explosion-proof casing, wherein:
Power circuit comprises protective tube 1; Power light 2; Resistance 3 and transformer 4; Input ac power connects bridge rectifier 5, signal processor 6 and driving amplifier 7 after transformer 4 step-downs, also connect sampling amplifier 10 and ultraviolet light sensing tube 11 after transformer 4 step-downs, and ultraviolet background light intensity equalizer 8 connects signal processor 6; And ultraviolet light filter glass 12 is installed between the 180nm-300nm wave band, and the flame ultraviolet ray is mapped to ultraviolet light sensing tube 11 through filtration eyeglass 12 and carries out the photosignal conversion, connects output in treated amplification and drives amplifying circuit, the work of driving relay.
The described detecting device explosion-proof casing of the utility model rear end is provided with the space of an installation circuit elements device 16; Front end is a cylindrical shell; Be provided with ultraviolet photosensitive pipe 11 and ultraviolet light filter glass 12 in the cylindrical shell, cylindrical shell one side is provided with cooling air interface 14, and the cylindrical shell end is provided with detector interface 13.
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
Built-in insurance protection flame detector: F0.032A 250V/F
Detect response ultraviolet spectral range: 190nm-290nm
Ultraviolet degree backlight is regulated wide: 1-30000uwcm2.
The utility model principle of work:
The utility model drives amplifying circuit by ultraviolet light filter glass, ultraviolet light sensing tube, signal Processing amplifying circuit, power circuit, ultraviolet bias light dimmer circuit, output and forms.
Usually; Flame ultraviolet radiation wavelength concentrates in the 100-400nm wave band; The filter glass based on fuel type of ultraviolet flame detecting device and component are selected to install between 180nm-300nm, and flame discharges the ultraviolet ray of fluctuation through filter glass, after inciding photosensitive tube and carrying out light-to-current inversion; The influence of background ultraviolet radiation was through opto-electronic conversion when the ultraviolet radiation that is produced by combustion zone flame deducted and starts; Be transformed into electric signal, output driving circuit is delivered in treated again amplification, drives the action output of relay.Thereby realize stable, " having " or " nothing " flame detection reliably.
Input ac power is through transformer step-down and rectifier bridge rectification, and becoming stable DC provides working power to follow-up signals collecting, processing and output circuit.
Through bleeder circuit and insurance circuit effective the reaching of signal is sent to comparer safely, provides the ultraviolet flame signal to produce the comparison signal of front and back, through comparator circuit signal voltage and reference voltage are compared, the action of relay is as the output signal.Thereby realize stable, flame detection reliably.
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 (2)
1. a burner is used the ultraviolet flame detecting device; It is characterized in that comprising power circuit, bridge rectifier (5), signal processor (6), driving amplifier (7); Ultraviolet background light intensity equalizer (8), backlight signal regulator (9); Sampling amplifier (10), ultraviolet light sensing tube (11), ultraviolet light filter glass (12) and detecting device explosion-proof casing, wherein:
Power circuit comprises protective tube (1); Power light (2); Resistance (3) and transformer (4); Input ac power connects bridge rectifier (5), signal processor (6) and driving amplifier (7) after transformer (4) step-down, also connect sampling amplifier (10) and ultraviolet light sensing tube (11) after transformer (4) step-down, and ultraviolet background light intensity equalizer (8) connects signal processor (6); And ultraviolet light filter glass (12) is installed between the 180nm-300nm wave band; The flame ultraviolet ray is mapped to ultraviolet light sensing tube (11) through filtration eyeglass (12) and carries out the photosignal conversion; Connect output in treated amplification and drive amplifying circuit, drive relay work.
2. burner according to claim 1 is used the ultraviolet flame detecting device; It is characterized in that described detecting device explosion-proof casing rear end is provided with (16) space of an installation circuit elements device; Front end is a cylindrical shell; Be provided with ultraviolet photosensitive pipe (11) and ultraviolet light filter glass (12) in the cylindrical shell, cylindrical shell one side is provided with cooling air interface (14), and the cylindrical shell end is provided with detector interface (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200404482U CN202494521U (en) | 2012-02-09 | 2012-02-09 | Ultraviolet flame detector for combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200404482U CN202494521U (en) | 2012-02-09 | 2012-02-09 | Ultraviolet flame detector for combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494521U true CN202494521U (en) | 2012-10-17 |
Family
ID=47000746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200404482U Expired - Fee Related CN202494521U (en) | 2012-02-09 | 2012-02-09 | Ultraviolet flame detector for combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954502A (en) * | 2012-11-28 | 2013-03-06 | 中山市创科科研技术服务有限公司 | A gas stove flameout alarm and automatic ignition device |
-
2012
- 2012-02-09 CN CN2012200404482U patent/CN202494521U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954502A (en) * | 2012-11-28 | 2013-03-06 | 中山市创科科研技术服务有限公司 | A gas stove flameout alarm and automatic ignition device |
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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 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160525 Granted publication date: 20121017 |
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| PP01 | Preservation of patent right |
Effective date of registration: 20160525 Granted publication date: 20121017 |
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| 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 | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20201125 Granted publication date: 20121017 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20211125 Granted publication date: 20121017 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20170209 |