CN102368044A - Intelligent plasma flame detection device - Google Patents
Intelligent plasma flame detection device Download PDFInfo
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- CN102368044A CN102368044A CN2011103021519A CN201110302151A CN102368044A CN 102368044 A CN102368044 A CN 102368044A CN 2011103021519 A CN2011103021519 A CN 2011103021519A CN 201110302151 A CN201110302151 A CN 201110302151A CN 102368044 A CN102368044 A CN 102368044A
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Abstract
The invention discloses an intelligent plasma flame detection device and the device comprises a flame sensor, a filtering amplifying circuit, a frequency discriminating circuit, an amplitude discriminating circuit, a direct current strength detection circuit, a central processing module and a display module, wherein the output end of the flame sensor is connected with the input end of the filtering amplifying circuit, and the output end of the filtering amplifying circuit is connected with the input ends of the frequency discriminating circuit, the amplitude discriminating circuit and the direct current strength detection circuit respectively; and the input end of the central processing module is connected with the output ends of the frequency discriminating circuit, the amplitude discriminating circuit and the direct current strength detection circuit respectively, and the output end of the central processing module is connected with the display module. The flame detection device can effectively detect plasma flames and ensures the the stability and safety of flame burning.
Description
Technical field
The invention belongs to the electronic measurement and control field, relate to a kind of flame detecting device that is used for various fuel oils, fire coal, gas fired-boiler, be meant a kind of flame detecting device especially to the isoionic point hot pot stove.
Background technology
In recent years, along with crude oil price rises steadily, the cost of fuel-burning power plant constantly rises; Face the phenomenon that Electricity Market Competition is growing more intense; Control cost, practice thrift the fuel oil consumption and more and more come into one's own, the direct firing coal-dust of plasma that plasma igniter utilizes relatively inexpensive electric energy to produce realizes that the boiler cold-state startup need not be oily; Particularly during new unit test run, can practice thrift great amount of fuel oil, be present a kind of more satisfactory sparking mode.Be accompanied by the appearance of plasma ignition mode; Plasma torch detects just to have become and can not evade the question; But because the singularity of plasma torch, conventional flame detecting device can not meet the demands, satisfies the professional flame detecting device that needs a kind of suitable plasma torch; This case just is being based on present development trend, proposes a kind of flame detecting device that is applicable to the isoionic point hot pot stove.
Summary of the invention
Technical matters to be solved by this invention is to defective and deficiency in the aforementioned background art, and a kind of intelligent plasma torch pick-up unit is provided, its effectively article on plasma flame detect, guarantee the stability and the security of flame combustion.
The present invention is for solving above technical matters, and the technical scheme that is adopted is:
A kind of intelligent plasma torch pick-up unit; Comprise flame sensor, filter amplification circuit, frequency-discriminating circuit, amplitude discrimination circuit, direct current intensity detection circuit, central processing module and display module; The output terminal of flame sensor connects the input end of filter amplification circuit, and the output terminal of filter amplification circuit connects the input end of frequency-discriminating circuit, amplitude discrimination circuit and direct current intensity detection circuit respectively; The input end of central processing module connects the output terminal of frequency-discriminating circuit, amplitude discrimination circuit and direct current intensity detection circuit respectively, and the output terminal of central processing module connects display module.
The output terminal of above-mentioned central processing module also connects communication module.
After adopting such scheme; The present invention utilizes the frequency characteristic and the wavelength characteristic of plasma radiation, extracts the main information of flame and carries out treatment technology, can reflect the combustion position of plasma torch immediately exactly; Guarantee to detect quality, guarantee isoionicly to safely and steadily run continuously.
Description of drawings
Fig. 1 is an integrated stand composition of the present invention;
Fig. 2 is the signal processing circuit figure of flame sensor among the present invention;
Fig. 3 is the structural drawing of amplitude discrimination circuit among the present invention;
Fig. 4 is the structural drawing of direct current intensity detection circuit among the present invention;
Fig. 5 is the port organization figure of central processing module among the present invention;
Fig. 6 is the circuit structure diagram of communication module among the present invention.
Embodiment
Below will combine accompanying drawing, technical scheme of the present invention will be elaborated.
As shown in Figure 1, the present invention provides a kind of intelligent plasma torch pick-up unit, comprises flame sensor, filter amplification circuit, frequency-discriminating circuit, amplitude discrimination circuit, direct current intensity detection circuit, central processing module and display module, introduces respectively below.
The flame sensor is used to detect the infrared signal of boiler plasma torch and carries out rough handling, and its concrete signal processing circuit figure can be with reference to shown in Figure 2, and front-end probe adopts the vulcanized lead sensor.
The input end of filter amplification circuit connects the output terminal of flame sensor, is used for infrared signal is carried out amplification filtering, sends into frequency-discriminating circuit, amplitude discrimination circuit and direct current intensity detection circuit then respectively.
Frequency-discriminating circuit is used to detect the frequency range of input signal, calculates to be used for follow-up flame switch amount and intensity, and frequency-discriminating circuit adopts the step-by-step counting frequency detection mode, counts with the PORTT mouth of single-chip microcomputer, then realizes frequency detecting.
Amplitude discrimination circuit is used to detect the peak value of input signal; Calculate to be used for follow-up flame switch amount and intensity; Its circuit structure can adopt shown in Figure 3, and amplitude discrimination circuit adopts integrated chip PKD01 to carry out peak value and detects, and detects the peak value of PKD01 output with the PAD mouth of single-chip microcomputer.
As shown in Figure 4, be a kind of circuit structure diagram of direct current intensity detection circuit among the present invention, at first input signal is carried out absolute value and handle, again AC signal is carried out smothing filtering, through its direct current intensity of PAD mouth detection of single-chip microcomputer.
Central processing module is used for the output of above-mentioned three kinds of testing circuits is calculated, and carries out ratio to the frequency values that obtains, range value, intensity level and standard value respectively and calculates, and is with factor multiplying to three kinds of result of calculations again; Obtain final flame intensity result; If intensity level >=0, then judging has fire, and exports corresponding flame intensity; Adopt the MC9S12DG128 (its port organization is as shown in Figure 5) of FREESCALE in the present embodiment; And the PAD mouth connected the output terminal of direct current intensity detection circuit, and its PA mouth then connects display module, and the signal that fire will be arranged or do not have a fire shows.
In addition, present embodiment also comprises communication module, and is as shown in Figure 6, and the input end of said communication module connects the communication terminal (being the SCI mouth of MC9S12DG128) of central processing module, is used for carrying out telecommunication with the external world.
Above embodiment is merely explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of on the technical scheme basis, being done all falls within the protection domain of the present invention.
Claims (2)
1. intelligent plasma torch pick-up unit; It is characterized in that: comprise flame sensor, filter amplification circuit, frequency-discriminating circuit, amplitude discrimination circuit, direct current intensity detection circuit, central processing module and display module; The output terminal of flame sensor connects the input end of filter amplification circuit, and the output terminal of filter amplification circuit connects the input end of frequency-discriminating circuit, amplitude discrimination circuit and direct current intensity detection circuit respectively; The input end of central processing module connects the output terminal of frequency-discriminating circuit, amplitude discrimination circuit and direct current intensity detection circuit respectively, and the output terminal of central processing module connects display module.
2. intelligent plasma torch pick-up unit as claimed in claim 1, it is characterized in that: the output terminal of said central processing module also connects communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103021519A CN102368044A (en) | 2011-09-27 | 2011-09-27 | Intelligent plasma flame detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103021519A CN102368044A (en) | 2011-09-27 | 2011-09-27 | Intelligent plasma flame detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102368044A true CN102368044A (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103021519A Pending CN102368044A (en) | 2011-09-27 | 2011-09-27 | Intelligent plasma flame detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102368044A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530511A (en) * | 2019-08-29 | 2019-12-03 | 南京凯盟仕电子科技有限公司 | A kind of portable ion flame detector and its application method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131275A (en) * | 1994-12-19 | 1996-09-18 | 埃尔国际N·V· | Flame detector self diagnostic system |
| JP2002150446A (en) * | 2000-11-10 | 2002-05-24 | Hochiki Corp | Fire detector and fire detection method |
| US20050174244A1 (en) * | 2004-02-10 | 2005-08-11 | Fred Grow | Flame detector, method and fuel valve control |
| CN201034728Y (en) * | 2007-04-18 | 2008-03-12 | 刘飞 | Intelligent flame testing apparatus |
| CN201866789U (en) * | 2010-05-24 | 2011-06-15 | 上海闽佳自动化设备有限公司 | Intelligent flame monitoring device for boiler |
| CN202281649U (en) * | 2011-09-27 | 2012-06-20 | 南京创能电力科技开发有限公司 | Intelligent plasma flame detection apparatus |
-
2011
- 2011-09-27 CN CN2011103021519A patent/CN102368044A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131275A (en) * | 1994-12-19 | 1996-09-18 | 埃尔国际N·V· | Flame detector self diagnostic system |
| JP2002150446A (en) * | 2000-11-10 | 2002-05-24 | Hochiki Corp | Fire detector and fire detection method |
| US20050174244A1 (en) * | 2004-02-10 | 2005-08-11 | Fred Grow | Flame detector, method and fuel valve control |
| CN201034728Y (en) * | 2007-04-18 | 2008-03-12 | 刘飞 | Intelligent flame testing apparatus |
| CN201866789U (en) * | 2010-05-24 | 2011-06-15 | 上海闽佳自动化设备有限公司 | Intelligent flame monitoring device for boiler |
| CN202281649U (en) * | 2011-09-27 | 2012-06-20 | 南京创能电力科技开发有限公司 | Intelligent plasma flame detection apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530511A (en) * | 2019-08-29 | 2019-12-03 | 南京凯盟仕电子科技有限公司 | A kind of portable ion flame detector and its application method |
| CN110530511B (en) * | 2019-08-29 | 2020-07-17 | 南京凯盟仕电子科技有限公司 | Portable ion flame detector and use method thereof |
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Application publication date: 20120307 |