CN108626742A - Combustion control device and method for controlling combustion - Google Patents
Combustion control device and method for controlling combustion Download PDFInfo
- Publication number
- CN108626742A CN108626742A CN201810219951.6A CN201810219951A CN108626742A CN 108626742 A CN108626742 A CN 108626742A CN 201810219951 A CN201810219951 A CN 201810219951A CN 108626742 A CN108626742 A CN 108626742A
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- CN
- China
- Prior art keywords
- combustion
- flame
- sensor
- adjustment
- threshold value
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
- F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
- F23M11/04—Means for supervising combustion, e.g. windows
- F23M11/045—Means for supervising combustion, e.g. windows by observing the flame
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/02—Starting or ignition cycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/12—Burner simulation or checking
- F23N2227/16—Checking components, e.g. electronic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2229/00—Flame sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2229/00—Flame sensors
- F23N2229/22—Flame sensors the sensor's sensitivity being variable
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The present invention provides a kind of combustion control device and method for controlling combustion, can safely control combustion apparatus relative to interference light in the case where not changing existing combustion apparatus.Fire defector adjustment section (12) to adjust preset baseline threshold (Hs) and exports obtained adjustment threshold value (H) according to the sensor output (S) of the expression interference light obtained from flame sensor (20) before the trial igniting in combustion apparatus (30), combustion flame test section (11) is according to the sensor output (S) and adjustment threshold value (H) obtained from flame sensor (20) in the combustion process of combustion apparatus (30), and to detect, whether there is or not combustion flames in combustion apparatus (30).
Description
Technical field
The present invention relates to a kind of combustion control technologies, and the fire detected is exported according to the sensor based on flame sensor
The presence or absence of flame burns to control.
Background technology
In the combustion apparatus used in industrial furnace, boiler, changes in temperature equipment, cooking apparatus, heat exchanger etc., setting detection
The light quantity of flame in burner and the flame sensor exported in a manner of electric signal, according to the sensor of the flame sensor
Output and preset threshold value, by combustion control device to detect the presence of flame, and are controlled according to the testing result
System burning.
In the past, in such combustion control device, in order to inhibit the output of the flame sensor generated by the shaking of flame
The influence of variation, sensor output igniting when being detected than igniting detect the low misfire detection level of level to detect flame
Extinguishing, i.e., flame (referring for example to patent document 1 etc.) is detected the presence of according to hysteresis characteristic.
【Existing technical literature】
【Patent document】
【Patent document 1】Japanese Patent Laid-fair 7-15328 bulletins
【Patent document 2】Japanese patent registration the 3943478th
Invention content
【Problems to be solved by the invention】
But in such prior art, by then passing through the sensor output of flame sensor and threshold value progress
Compare to detect the presence of flame, therefore further contemplates following situation：Due to exterior light or stray light etc. interfere light influence,
And there are more than misfire detection level and under the such environment of false flame of igniting detection level light quantity below, even if after igniting
The sensor output of fray-out of flame, flame sensor will not be reduced to misfire detection level.Therefore, in this case, by
Stop working caused by fray-out of flame in that cannot detect, also continues to discharge in fray-out of flame post fuel, existing becomes very
The possibility of dangerous state.
In order to inhibit the influence of this interference, it is proposed that designed combustion device structure come prevent interference light enter flame sensor
Technology (referring for example to patent document 2 etc.).But take which type of reply depends on equipment manufacturers, it's hard to say
All burners all reliably take such countermeasure.In addition, in order to be applicable in such burner structure, need to carry out
Replacement of existing burner etc. is directed to the change of existing combustion apparatus, therefore the cost of countermeasure will be significantly increased.
In order to solve the problems, the object of the present invention is to provide being capable of phase not changing existing combustion apparatus
The combustion control technology of combustion apparatus is safely controlled for interference light.
【Technical means to solve problem】
In order to reach this purpose, combustion control device of the invention, based on being exported from the sensor of flame sensor
The presence or absence of combustion flame in combustion apparatus detected controls the burning in the combustion apparatus, the combustion control device
It is characterised by comprising：Fire defector adjustment section is passed according to before the trial igniting in the combustion apparatus from the flame
Sensor that sensor obtains, expression interference light exports to adjust preset baseline threshold, and exports obtained tune
Whole threshold value；Combustion flame test section is obtained according in the combustion process in the combustion apparatus from the flame sensor
Sensor output and the adjustment threshold value, to detect, whether there is or not combustion flames in the combustion apparatus；And Combustion System portion,
It controls the burning in the combustion apparatus according to the combustion flame testing result obtained by the combustion flame test section.
In addition, in a configuration example of the combustion control device of the present invention, the fire defector adjustment section passes through
The multiple sensors obtained from the flame sensor before igniting output progress statistical disposition is attempted to described, indicates dry to calculate
The adjusted value for disturbing the size of light adjusts the baseline threshold by the way that the adjusted value is added to the baseline threshold, and exports
The obtained adjustment threshold value.
In addition, in a configuration example of the combustion control device of the present invention, the baseline threshold is by the first base
It quasi- threshold value and is constituted less than the second baseline threshold of first baseline threshold, described in the fire defector adjustment section output adjustment
It is adjusted less than described first obtained from the first adjustment threshold value obtained from first baseline threshold and adjustment second baseline threshold
The second adjustment threshold value of whole threshold value, described in the combustion flame test section obtains in the combustion process in the combustion apparatus
In the case that the sensor of flame sensor is exported more than the first adjustment threshold value, detect there is combustion in the combustion apparatus
Make a fire flame, below in the second adjustment threshold value in sensor output, detects no combustion flame.
In addition, the method for controlling combustion of the present invention, based on the burning detected from the output of the sensor of flame sensor
The presence or absence of combustion flame in equipment controls the burning in the combustion apparatus, and the method for controlling combustion is characterized in that,
Including：Fire defector set-up procedure, fire defector adjustment section are preceding from the fire according to the trial igniting in the combustion apparatus
Sensor that flame sensor obtains, expression interference light exports to adjust preset baseline threshold, and obtained by output
Adjustment threshold value；Combustion flame detecting step, combustion flame test section according in the combustion process in the combustion apparatus from
Whether there is or not combustion flames in the combustion apparatus to detect for the sensor output that the flame sensor obtains and the adjustment threshold value；
And burning control steps, Combustion System portion according to the combustion flame testing result obtained by the combustion flame detecting step come
Control the burning in the combustion apparatus.
【The effect of invention】
According to the present invention, to indicate that the adjusted value of the size of interference light adjusts threshold value quilt to be turned up obtained from baseline threshold
For detecting, whether there is or not combustion flames in combustion apparatus.It therefore, even if can if potentially there are interference light under such circumstances
Inhibit interference light to combustion flame whether there is or not detection influence.Thus it is possible to safely control combustion apparatus relative to interference light.
Further, since being to adjust the threshold value of combustion flame detection in combustion control device side, so burning need not be had no need to change
Device structure enters flame sensor to avoid interference light.Existing burner etc. need not be replaced as a result, and need not be to existing
Some combustion apparatus change, therefore the cost for capableing of Retraining Measures is significantly increased.
Description of the drawings
Fig. 1 is the block diagram for the structure for indicating combustion control device.
Fig. 2 is the definition graph for the calculating for indicating adjusted value.
Fig. 3 is the definition graph for the adjustment for indicating threshold value.
Fig. 4 is the flow chart for indicating adjusting thresholds processing.
Specific implementation mode
In the following, refer to the attached drawing, embodiments of the present invention will be described.
【Combustion control device】
First, with reference to figure 1, the combustion control device 10 of present embodiment is illustrated.Fig. 1 is to indicate combustion control device
The block diagram of structure.
Combustion control device 10 is to carry out the combustion of combustion apparatus 30 according to the sensor output S from flame sensor 20
Burn the device of control.
Combustion apparatus 30 is the general combustion apparatus for industrial furnace, boiler, changes in temperature equipment, cooking apparatus, heat exchanger etc.,
It has the function that thermal energy is generated by combustor burns fuel.
Flame sensor 20 is the light quantity of the flame in the burner for detect combustion apparatus 30 and carries out electric conversion, and as biography
The sensor that sensor output S is exported to combustion control device 10.
The combustion flame test section 11 as major function portion, fire defector adjustment are provided in combustion control device 10
Portion 12 and Combustion System portion 13.These function parts can be constituted by using the control circuit of IC, can also be by making CPU
It is realized with program cooperation.
Combustion flame test section 11 has：The sensing of flame sensor 20 is obtained before trial igniting in combustion apparatus 30
Device exports S and is output to the function of fire defector adjustment section 12；And according in the combustion process in combustion apparatus 30
The adjustment threshold value H that the sensor obtained from flame sensor 20 exports S and exported from fire defector adjustment section 12, to detect burning
Whether there is or not the functions of combustion flame in equipment 30.
Fire defector adjustment section 12 has preceding from combustion flame test section 11 according to the trial igniting in combustion apparatus 30
The sensor of output, expression interference light flame sensor 20 exports S to adjust preset baseline threshold Hs, and
Obtained adjustment threshold value H is output to the function of combustion flame test section 11.
Specifically, fire defector adjustment section 12 has：Pass through multiple biographies to attempting to obtain from flame sensor 20 before lighting a fire
Sensor output S carries out statistical disposition to calculate the function of the adjusted value P for the size for indicating to interfere light；By the way that adjusted value P is added to
Baseline threshold Hs adjusts baseline threshold Hs, and exports the function of obtained adjustment threshold value HP.
Fig. 2 is the definition graph for the calculating for indicating adjusted value.Here, will be from trial prefiring time in combustion apparatus 30
T0 to time T 1 is redefined for TP during detection, and by being obtained from flame sensor 20 in the TP during the detection
Multiple sensors output S carry out statistical disposition, come calculate indicate exterior light or stray light etc. interfere light size adjusted value
P.As the specific example of adjusted value P, the average value of S, maximum value, minimum value can be exported by calculating these multiple sensors
The general statistical disposition of the typical value of S is exported with these multiple sensors such as medians to obtain.
Fig. 3 is the definition graph for the adjustment for indicating threshold value.Baseline threshold Hs has hysteresis characteristic, and by the first benchmark
Threshold value Hs1 (igniting detection level) and the second baseline threshold Hs2 (misfire detection level) less than the Hs1 are constituted.Fire defector
Adjustment section 12 by adding adjusted value P on these Hs1, Hs2, calculate separately the first adjustment threshold value H1 (igniting detection level) and
Second adjustment threshold value H2 (misfire detection level) less than H1.
As a result, using indicate interference light size adjusted value P come be turned up the value obtained by baseline threshold Hs as adjust threshold value H
It is output to combustion flame test section 11.In addition, in the case where not interfering with light, adjusted value P is expressed as zero, and will be with base
Adjustment threshold value H equal quasi- threshold value Hs is output to combustion flame test section 11.
Therefore, the sensor of the flame sensor 20 obtained in the combustion process in combustion apparatus 30 exports S first
In the case of adjusting threshold value H1 (igniting detection level) or more, combustion flame test section 11 is detected as having burning in combustion apparatus 30
Flame Bon, it is below in second adjustment threshold value H2 in sensor output S, it is detected as not having combustion flame Boff, and
It is output to Combustion System portion 13 using these as combustion flame testing result B.
Combustion System portion 13 has in the combustion process in combustion apparatus 30 according to from combustion flame test section 11
Combustion flame testing result B controls the function of the burning in combustion apparatus 30.Here Combustion System is such as tradition, example
Such as, in the case where combustion flame testing result B indicates combustion flame Bon, instruction supplies the fuel of burner
Control signal C is output to combustion apparatus 30, will in the case that combustion flame testing result B indicates no combustion flame Boff
Indicate that the control signal C for stopping the fuel supply for burner is output to combustion apparatus 30.
In addition, combustion flame test section 11 and fire defector adjustment section 12 can be mounted on flame sensor 20, without
It is mounted on combustion control device 10.In addition, about adjusted value P, can use the value learnt by machine learning and
It is not using the value obtained by statistical disposition.
【The operation of present embodiment】
Then, with reference to figure 4, the action of the combustion control device 10 of present embodiment is illustrated.Fig. 4 is to indicate adjusting thresholds
The flow chart of processing.
Before beginning attempt to igniting in combustion apparatus 30, Combustion System portion 13 executes the adjusting thresholds processing of Fig. 4.
First, it is obtained from combustion flame test section 11 before trial igniting of the fire defector adjustment section 12 in combustion apparatus 30
The sensor of output, expression interference light flame sensor 20 exports S (steps 100).At this point, sensor output S can not
It is directly obtained from flame sensor 20 via combustion flame test section 11.
Then, fire defector adjustment section 12 to multiple sensors that TP includes during preset detection by exporting S
Statistical disposition is carried out, to calculate the adjusted value P (steps 101) for the size for indicating that exterior light or stray light etc. interfere light.
Then, fire defector adjustment section 12 is counted by the way that adjusted value P is added to preset baseline threshold Hs1, Hs2
Adjustment threshold value H1, H2 (step 102) is calculated, and obtained adjustment threshold value H1, H2 is output to 11 (step of combustion flame test section
103), terminate a series of adjusting thresholds processing.
【The effect of present embodiment】
In this way, in the present embodiment, fire defector adjustment section 12 is preceding from flame according to the trial igniting in combustion apparatus 30
Sensor that sensor 20 obtains, expression interference light exports S to adjust preset baseline threshold Hs, and exports and obtain
Adjustment threshold value H, combustion flame test section 11 obtains according in the combustion process in combustion apparatus 30 from flame sensor 20
Sensor output S and adjustment threshold value H, to detect, whether there is or not combustion flames in combustion apparatus 30.
As a result, with indicate interference light size adjusted value P come be turned up obtained from baseline threshold Hs adjust threshold value H by with
In whether there is or not combustion flames in detection combustion apparatus 30.Therefore, even if can inhibit if potentially there are interference light
Interfere light to combustion flame whether there is or not detection influence.Thus it is possible to safely control combustion apparatus 30 relative to interference light.By
Then the threshold value that combustion flame detection is adjusted in 10 side of combustion control device, so burner structure need not be had no need to change
Enter flame sensor 20 to avoid interference light.Existing burner etc. need not be replaced as a result, and need not be to existing
Combustion apparatus 30 changes, therefore the cost for capableing of Retraining Measures is significantly increased.
【The extension of embodiment】
More than, the present invention is described for reference implementation mode, but the present invention is not limited to the above embodiments.It can be at this
The composition or details of the present invention are carried out the skilled addressee will appreciate that various changes in the range of invention.
Symbol description
10 combustion control devices, 11 combustion flame test sections, 12 fire defector adjustment sections, 13 Combustion System portions, 20 flames
Sensor, 30 combustion apparatus, sensor output, H adjust threshold value, H1 the first adjustment threshold values, H2 second adjustment threshold values, Hs benchmark
Threshold value, the first baseline thresholds of Hs1, the second baseline thresholds of Hs2, B combustion flame testing results, P adjusted values, C control signal.
Claims (4)
1. a kind of combustion control device, based on the burning out of the output of the sensor of flame sensor detects combustion apparatus
The presence or absence of flame controls the burning in the combustion apparatus, and the combustion control device is characterised by comprising：
Fire defector adjustment section, being obtained from the flame sensor before being lighted a fire according to the trial in the combustion apparatus,
It indicates that the sensor of interference light exports to adjust preset baseline threshold, and exports obtained adjustment threshold value；
Combustion flame test section, according to the biography obtained from the flame sensor in the combustion process in the combustion apparatus
Sensor exports and the adjustment threshold value, and to detect, whether there is or not combustion flames in the combustion apparatus；And
Combustion System portion controls the burning according to the combustion flame testing result obtained by the combustion flame test section
Burning in equipment.
2. combustion control device according to claim 1, which is characterized in that
The fire defector adjustment section passes through defeated to the multiple sensors for attempting to obtain from the flame sensor before igniting
Go out to carry out statistical disposition, to calculate the adjusted value for the size for indicating interference light, by the way that the adjusted value is added to the benchmark threshold
Value adjusts the baseline threshold, and exports the obtained adjustment threshold value.
3. combustion control device according to claim 1, which is characterized in that
The baseline threshold is constituted by the first baseline threshold and less than the second baseline threshold of first baseline threshold,
Described in the first adjustment threshold value obtained from first baseline threshold described in the fire defector adjustment section output adjustment and adjustment
It is less than the second adjustment threshold value of the first adjustment threshold value obtained from second baseline threshold,
The sensing for the flame sensor that the combustion flame test section obtains in the combustion process in the combustion apparatus
In the case that device output is more than the first adjustment threshold value, detect there is combustion flame in the combustion apparatus, in the biography
Sensor output is below in the second adjustment threshold value, detects no combustion flame.
4. a kind of method for controlling combustion, based on the burning out of the output of the sensor of flame sensor detects combustion apparatus
The presence or absence of flame controls the burning in the combustion apparatus, and the method for controlling combustion is characterised by comprising：
Fire defector set-up procedure, fire defector adjustment section are preceding from the flame according to the trial igniting in the combustion apparatus
Sensor that sensor obtains, expression interference light exports to adjust preset baseline threshold, and exports obtained
Adjust threshold value；
Combustion flame detecting step, combustion flame test section according in the combustion process in the combustion apparatus from the flame
Whether there is or not combustion flames in the combustion apparatus to detect for the sensor output that sensor obtains and the adjustment threshold value；And
Burning control steps, Combustion System portion according to the combustion flame testing result obtained by the combustion flame detecting step come
Control the burning in the combustion apparatus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017052495A JP2018155443A (en) | 2017-03-17 | 2017-03-17 | Combustion control device and method |
| JP2017-052495 | 2017-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108626742A true CN108626742A (en) | 2018-10-09 |
Family
ID=63519157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810219951.6A Pending CN108626742A (en) | 2017-03-17 | 2018-03-16 | Combustion control device and method for controlling combustion |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20180266683A1 (en) |
| JP (1) | JP2018155443A (en) |
| CN (1) | CN108626742A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288484A (en) * | 2018-12-06 | 2020-06-16 | 西门子股份公司 | Flame monitor |
| CN112789669A (en) * | 2018-10-12 | 2021-05-11 | 阿自倍尔株式会社 | Wireless sensor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2598383A (en) * | 2020-08-28 | 2022-03-02 | Bosch Thermotechnology Ltd Uk | An air-gas mixture burning appliance with a flame detector |
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| US5227640A (en) * | 1991-06-15 | 1993-07-13 | Nittan Company, Ltd. | Apparatus for detecting a flame using weighted time intervals |
| JPH08327056A (en) * | 1995-05-30 | 1996-12-10 | Matsushita Electric Ind Co Ltd | Flame failure sensor for burner |
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| CN202494516U (en) * | 2012-02-10 | 2012-10-17 | 湖南吉祥石化科技股份有限公司 | Infrared flame detector for combustor |
| 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 |
| CN104976636A (en) * | 2014-04-08 | 2015-10-14 | 阿自倍尔株式会社 | Flame detecting system |
| CN106196159A (en) * | 2015-05-26 | 2016-12-07 | 阿自倍尔株式会社 | Flame detector system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9528879B2 (en) * | 2013-01-21 | 2016-12-27 | Panasonic Intellectual Property Management Co., Ltd. | Infrared detection element, infrared detector, and infrared type gas sensor |
| JP6508772B2 (en) * | 2015-05-26 | 2019-05-08 | アズビル株式会社 | Flame detection system |
-
2017
- 2017-03-17 JP JP2017052495A patent/JP2018155443A/en not_active Abandoned
-
2018
- 2018-03-15 US US15/922,299 patent/US20180266683A1/en not_active Abandoned
- 2018-03-16 CN CN201810219951.6A patent/CN108626742A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5227640A (en) * | 1991-06-15 | 1993-07-13 | Nittan Company, Ltd. | Apparatus for detecting a flame using weighted time intervals |
| JPH08327056A (en) * | 1995-05-30 | 1996-12-10 | Matsushita Electric Ind Co Ltd | Flame failure sensor for burner |
| CN2411479Y (en) * | 1999-07-08 | 2000-12-20 | 西安华能电力测控工程有限公司 | Device for detecting boiler flame using infrared light |
| CN1534238A (en) * | 2003-04-01 | 2004-10-06 | 上海东方机电科技公司 | Digital flame detecting device |
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| CN202494516U (en) * | 2012-02-10 | 2012-10-17 | 湖南吉祥石化科技股份有限公司 | Infrared flame detector for combustor |
| 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 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112789669A (en) * | 2018-10-12 | 2021-05-11 | 阿自倍尔株式会社 | Wireless sensor |
| CN111288484A (en) * | 2018-12-06 | 2020-06-16 | 西门子股份公司 | Flame monitor |
| US11105509B2 (en) | 2018-12-06 | 2021-08-31 | Siemens Aktiengesellschaft | Flame monitor |
Also Published As
| Publication number | Publication date |
|---|---|
| US20180266683A1 (en) | 2018-09-20 |
| JP2018155443A (en) | 2018-10-04 |
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