CN107588848A - Burner based on vibration principle stops working monitoring device - Google Patents
Burner based on vibration principle stops working monitoring device Download PDFInfo
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- CN107588848A CN107588848A CN201710774603.0A CN201710774603A CN107588848A CN 107588848 A CN107588848 A CN 107588848A CN 201710774603 A CN201710774603 A CN 201710774603A CN 107588848 A CN107588848 A CN 107588848A
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Abstract
The present invention relates to the flame-out monitoring device of the burner based on vibration principle, belong to flame-out monitoring technical field.Including kernel and shell, the kernel includes steel pipe, flexible pipe and the sensor cluster being sequentially connected, sleeve pipe is installed in the sensor cluster, one end of sleeve pipe is connected with sensor, and the other end is connected with flexible pipe, and the wire of sensor is through kernel, the tail end of monitoring device and the side wall of burner body connect, so that sensor is placed in the nozzle of fuel channel in fuel channel that head end is probeed into burner body, due to combustion medium normal temperature characteristic, solves the heat-insulating problem of sensor；And now sensor has been pointing directly at flame direction, at utmost reduce influence of the ambient noise to gathered data.
Description
Technical field
The present invention relates to the flame-out monitoring device of the burner based on vibration principle, belong to flame-out monitoring device technical field.
Background technology
In the combustion process of industrial combustion furnace, working conditions change, combustion medium the fluctuation even influence such as maloperation combustion be present
The factor of burning, accident extinguishing may be caused.If it happens it is flame-out, and fuel is still constantly sent to burner hearth, at this moment this sets
It is standby to be at the state of being in extreme danger, when lighting again, the major accidents such as bombing bore will occur.Therefore, it is necessary to burner
Fired state carries out monitored over time, but it is very big to monitor difficulty.Gas turbine and all types of industries pot are turned into flame monitoring at present
Pith in stove, steam furnace control system, in process of production once accident extinguishing must fuel shutoff immediately confession
Should, and the flame monitoring signal of mistake frequently can lead to the very serious consequence such as unit trip or fire, blast.
The fuel sprayed into through burner in stove, can discharge big energy in violent combustion chemistry course of reaction, wrap
Including luminous energy (such as ultraviolet, visible ray and infrared ray), heat energy and sound wave vibration radiation can.These different form of energy structures
The basis whether extinguished into detection furnace flame.According to whether contact flame, common detection means, can broadly be divided into
Contact measurement and the major class of non-contact detection two；According to the difference of sensing assembly, contact mainly has ionic flame probe
And thermocouple.Flame in combustion, forms many ions (charged particle), and these particles have conductive characteristic, ion fire
Flame probe detects the presence or absence of flame accordingly.The thermocouple being placed in flame produces thermoelectrical potential under its high temperature action, so can
To make the monitor of flame presence or absence using this principle.Photo-electric flame detector is essentially all based in combustion process
Infrared ray, visible ray and ultraviolet that Fire Radiation goes out etc. are detected.It is mesh using luminous energy principle detection furnace flame is radiated
A kind of preceding method generally used.In addition, also a kind of flame status monitor based on video, with video camera to burner
Analysis is identified to its image in flame captured in real-time, computer, can also determine whether to stop working.
Existing flame status monitor has thermoelectric (al) type flame status monitor, ionic formula flame status monitor, photo-electric
Flame detector and image-type flame monitor.(1) principle of thermoelectric (al) type flame status monitor is：Thermocouple is in flame high temperature
Effect is lower to produce thermoelectrical potential, and subsequent conditioning circuit is handled its Simulation scale-up, linearisation etc., compared with threshold values set in advance, obtained
To whether flame-out status signal.Thermoelectric (al) type flame status monitor shortcoming is thermal inertia, prevent thermocouple export electric current from
Disappeared immediately with fray-out of flame, the sensitivity of thermocouple is also than relatively low.In addition, thermocouple is directly and flame contact, due to
The high temperature of flame, causes that its service life is short, poor reliability.Thermoelectric (al) type flame status monitor is typically also used for back yard industry pot
Stove.(2) ionic formula flame status monitor is the electric conductivity using flame, and a resistant to elevated temperatures metal electricity is placed in flame
Pole, apply voltage, and another electrode is connected with burner metallic object, its principle is as shown in Figure 4.
When there is flame, electric current is produced in circuit, voltage drop V=IR is formed on resistance R, electricity is can be taken off from A, B both ends
Signal is pressed, executing agency's action is controlled after being then sent through amplifier amplification.Work as fray-out of flame, loss of voltage, executing agency can obtain
Flame status.The method of ionic formula flame monitor is simple, and cost is relatively low, although easily realizing, in actual applications, often
Due to reasons such as environmental pollution, humidities electrode insulation resistance can be caused to decline.When insulaion resistance is dropped to close to during flame internal resistance,
Circuit just cannot be distinguished from flame current or leakage current, so as to malfunction, lose protective effect.In addition, the electrode under high temperature
Life-span be also problem.(3) photo-electric flame detector is that current use is most wide using luminous energy principle detection furnace flame is radiated
General and more effective method.Conventional radiation luminous energy fire inspection is essentially all to be given off based on combustion process Flame
Infrared ray, visible ray and ultraviolet etc. are detected.But the photosensitive tube in photo-electric flame detector is not resistant to the height of flame
Temperature, it is therefore necessary to which the light path of complex designing, optical signal is guided into a sensor can be with the region of normal work.And light path is held very much
Caused greasy dirt, dust are covered during being easily burned, and the sensitivity for causing fire defector is gradually decrease until failure by this.
Only way is to increase manual inspection, the flow of cleaning, undoubtedly adds maintenance workload.In addition, photosensitive tube also has performance
With the passage degradation phenomena of time.(4) image-type flame monitor is to be sent to place using the image of video camera intake furnace flame
Device is managed, processing is digitized to image, the temperature field of fuel combustion flames and the energy of flame can be calculated, so as to judge
Go out the quality of burning and carry out combustion instability alarm and blowout protection etc..Camera technique sum bitmap treatment technology so that this
Kind mode has the advantages of directly perceived, vivid, the powerful processing computing capability of computer is given full play to again, so as to there is good flame
Monitoring Performance.As photo-electric flame detector, video camera can not be resistant to the high temperature of flame, it is therefore necessary to complex designing
Light path, optical signal is guided into a video camera can be with the region of normal work.And light path is easy to caused by during being burned
Greasy dirt, dust are covered, and the sensitivity for causing fire defector is gradually decrease until failure by this.Only way is that increase is artificial
Inspection, the flow of cleaning, undoubtedly add maintenance workload.In addition, the hardware cost of this mode is very high, software is also relatively more multiple
It is miscellaneous.One large-scale boiler might have individual burners up to a hundred, if to monitor all burners, it is necessary to pay very big generation
Valency.
The content of the invention
It is an object of the invention to overcome drawbacks described above existing for the flame-out monitoring device of existing burner, it is proposed that Yi Zhongji
In the flame-out monitoring device and burner of acoustic vibration, using acoustical vibration, monitoring dress caused by vibration principle collection burning
The head end put probes into inside fuel channel so that sensor is placed in nozzle, not only solves the heat-insulating problem of sensor, and
It ensure that the accuracy of gathered data.
The present invention is realized using following technical scheme：
A kind of burner based on vibration principle stops working monitoring device, including kernel and shell, and the kernel is included successively
Connected steel pipe, flexible pipe and sensor cluster, sleeve pipe is installed in the sensor cluster, one end of sleeve pipe is connected with sensing
Device, the other end are connected with flexible pipe, and the wire of sensor connects through kernel, the tail end of monitoring device and the side wall of burner body
Connect, so that sensor is placed in the nozzle of fuel channel in the fuel channel that head end is probeed into burner body, sensor passes through
Sleeve pipe is fixed, and mounting stability is good, is connected sensor by flexible pipe, can be effectively blocked the transmission of burner body vibration,
Reduce the interference to gathered data.
The steel pipe is connected with flexible pipe by switching part, and described switching part one end set is pressed on flexible pipe, the other end with
Fastener for connection, there is the corner protector for being close to steel pipe and flexible pipe outside switching part, and the corner protector of flexible pipe side is used to protecting flexible pipe to avoid curved
Folding, the corner protector of steel pipe side are used to prevent steel pipe from rotating.
The sensor cluster also includes the sleeve being socketed in outside sleeve pipe, and the outer rim of the sleeve, which is provided with, to be circumferentially distributed
Some spring leafs, spring leaf on the one hand avoid bending to support to flexible pipe, on the other hand isolate flexible pipe in itself rigidity vibration,
Reduce the interference to gathering signal.
The end of the sleeve is provided with closed protective head, and protection head is connected with sensor, and providing sealing to sensor protects
Shield.
Monitoring device and the side wall of burner body are connected by flange arrangement, and the end of the steel pipe is integrally formed with interior
Flange, outward flange are installed in combustor sidewalls.
The outward flange fastener for connection of the hollow pipe and monitoring device, ensure that monitoring integrally formed with hollow pipe
The sealing that device is connected with burner body, if the internal diameter of steel pipe is not in the internal diameter of the hollow pipe of outward flange and monitoring device
With, it is necessary to which reducing adapter is transferred.
The shell of monitoring device and fuel channel wall fixed seal connection, ensure monitoring device and the sealing of fuel channel wall
Property.
The beneficial effects of the invention are as follows：
(1) monitoring device is using acoustical vibration, flexible pipe, steel pipe, sleeve, sleeve pipe caused by vibration principle collection burning
Combining structure can be effectively blocked the transmission of burner body vibration, reduce the interference to gathering signal；
(2) head end of monitoring device is probeed into inside fuel channel so that sensor is placed in nozzle, in nozzle in a steady stream not
The disconnected combustion medium ejected has normal temperature characteristic, and this causes sensor to be in a normal temperature environment all the time, solves heat and asks
Topic；And now sensor be pointing directly at flame direction and also with flame distance it is very near, at utmost reduce environment and make an uproar
Influence of the sound to collection signal, ensure that the accuracy of the combustion vibration signal collected.
Brief description of the drawings
Fig. 1 is the structural representation of the flame-out monitoring device of the present invention.
Fig. 2 is the structural representation of the burner of the present invention.
Fig. 3 is the longitudinal sectional view at A in Fig. 1.
Fig. 4 is the principle schematic of ionic formula flame status monitor.
In figure：1 burner；2 fuel channels；3 monitoring devices；4 nozzles；5 steel pipes；6 flexible pipes；7 sleeves；71 sleeve pipes；72 protect
Head protector；73 spring leafs；8 sensors；9 switching parts；10 corner protectors；11 shells；111 inner flanges；12 reducing adapters；13 outer methods
It is blue；131 hollow pipes.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
The monitoring device as shown in figure 1, burner of the present invention stops working, including kernel and shell 11, the kernel bag
The steel pipe 5 being sequentially connected, flexible pipe 6 and sensor cluster are included, sleeve pipe 71, one end connection of sleeve pipe 71 are installed in sensor cluster
There is sensor 8, the other end is connected with flexible pipe 6, and the end of sleeve 7 is provided with closed protective first 72, the other end of sensor 8 and guarantor
Head protector 72 is connected, and the wire of sensor 8 is connected through kernel, steel pipe 5 and flexible pipe 6 by switching part 9, switching part 9 one
End set is pressed on flexible pipe 6, and the other end is threadedly coupled with steel pipe 5, there is the corner protector for being close to steel pipe 5 and flexible pipe 6 outside switching part 9
10, the corner protector 10 of the side of flexible pipe 6 is used to protect flexible pipe 6 to avoid bending, and the corner protector 10 of the side of steel pipe 5 is used to prevent steel pipe 5 from rotating.
The sensor cluster also includes the sleeve 7 being socketed in outside sleeve pipe 71, if the outer rim of the sleeve 7 is provided with what is be circumferentially distributed
Dry spring leaf 73, the one side of spring leaf 73 are avoided bending to flexible pipe 6 to support, and on the other hand isolation flexible pipe 6 rigidity of itself is shaken
It is dynamic, reduce the interference to gathered data.
As shown in Fig. 2 the burner of the flame-out monitoring device is installed, including burner body and fuel channel 2, combustion
Pipe material 2 is connected with nozzle 4, and the tail end of monitoring device 3 is connected with the side wall of the body of burner 1, and head end is probeed into inside fuel channel 2
So that sensor 8 is placed in nozzle 4, due to combustion medium normal temperature characteristic, solves the heat-insulating problem of sensor 8, such as Fig. 3 institutes
Show, monitoring device 3 is connected with the side wall of the body of burner 1 by flange arrangement, and inner flange 111 is shaped in monitoring device 3
Shell 11, outward flange 13 is installed on the outer wall of burner 1, and outward flange 13 is integrally formed with hollow pipe 131, in monitoring device 3
Steel pipe 5 be threadedly coupled with hollow pipe 131, the sealing that monitoring device 3 is connected with the body of burner 1 is ensure that, if outward flange
The internal diameter of the 13 hollow pipe 131 and internal diameter of steel pipe 5 is mismatched, it is necessary to reducing adapter 12 is transferred in monitoring device 3,
The shell 11 of monitoring device 3 and the wall fixed seal connection of fuel channel 2, ensure monitoring device 3 and the sealing of the wall of fuel channel 2
Property, directly the two can be welded.
Claims (8)
- The monitoring device 1. a kind of burner based on vibration principle stops working, it is characterised in that：It is described including kernel and shell (11) Kernel includes steel pipe (5), flexible pipe (6) and the sensor cluster being sequentially connected, and sleeve pipe (71) is provided with the sensor cluster, One end of sleeve pipe (71) is connected with sensor (8), and the other end is connected with flexible pipe (6), the wire of sensor (8) through kernel, The tail end of monitoring device (3) is connected with the side wall of burner (1) body, and head end probes into the fuel channel (2) of burner (1) body It is interior that sensor (8) is placed in the nozzle (4) of fuel channel (2).
- The monitoring device 2. burner according to claim 1 based on vibration principle stops working, it is characterised in that：The steel pipe (5) connected with flexible pipe (6) by switching part (9), switching part (9) one end set is pressed on flexible pipe (6), the other end and steel (5) connection is managed, has the corner protector (10) for being close to steel pipe (5) and flexible pipe (6) outside switching part (9).
- The monitoring device 3. burner according to claim 1 based on vibration principle stops working, it is characterised in that：The sensing Device assembly also includes being socketed in the sleeve (7) of sleeve pipe (71) outside, the outer rim of the sleeve (7) be provided with circumferentially be distributed it is some Spring leaf (73).
- The monitoring device 4. burner according to claim 3 based on vibration principle stops working, it is characterised in that：The sleeve (7) end is provided with closed protective head (72), and protection head (72) is connected with sensor (8).
- The monitoring device 5. burner according to claim 1 based on vibration principle stops working, it is characterised in that：Monitoring device (3) side wall with burner (1) body is connected by flange arrangement, and the end of the steel pipe (5) is integrally formed with inner flange (111), outward flange (13) is installed in burner (1) side wall.
- The monitoring device 6. burner according to claim 5 based on vibration principle stops working, it is characterised in that：The outer method Blue (13) are connected integrally formed with hollow pipe (131), the hollow pipe (131) with the steel pipe (5) of monitoring device (3).
- The monitoring device 7. burner according to claim 6 based on vibration principle stops working, it is characterised in that：It is described hollow Reducing adapter (12) is connected between pipe (131) and steel pipe (5).
- The monitoring device 8. burner according to claim 1 based on vibration principle stops working, it is characterised in that：Monitoring device (3) shell (11) and fuel channel (2) wall fixed seal connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710774603.0A CN107588848A (en) | 2017-08-31 | 2017-08-31 | Burner based on vibration principle stops working monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710774603.0A CN107588848A (en) | 2017-08-31 | 2017-08-31 | Burner based on vibration principle stops working monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN107588848A true CN107588848A (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710774603.0A Pending CN107588848A (en) | 2017-08-31 | 2017-08-31 | Burner based on vibration principle stops working monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484495A (en) * | 2022-04-18 | 2022-05-13 | 北京航空航天大学 | Thermoacoustic oscillation active control device based on metal particle addition |
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| CN102589003A (en) * | 2011-01-07 | 2012-07-18 | 通用电气公司 | System and method for controlling combustor operating conditions based on flame detection |
| CN102927591A (en) * | 2011-08-08 | 2013-02-13 | 通用电气公司 | System and method for monitoring combustor |
| CN104583738A (en) * | 2012-08-22 | 2015-04-29 | 西门子能量股份有限公司 | System for remote vibration detection on combustor basket and transition in gas turbines |
| US20160103039A1 (en) * | 2013-04-12 | 2016-04-14 | Siemens Energy, Inc. | Single dynamic pressure sensor based flame monitoring of a gas turbine combustor |
| CN206071849U (en) * | 2016-08-12 | 2017-04-05 | 江阴众和利核仪控技术有限公司 | One seed nucleus level main pump signals of rotational speed sensor ejector |
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2017
- 2017-08-31 CN CN201710774603.0A patent/CN107588848A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589003A (en) * | 2011-01-07 | 2012-07-18 | 通用电气公司 | System and method for controlling combustor operating conditions based on flame detection |
| CN102927591A (en) * | 2011-08-08 | 2013-02-13 | 通用电气公司 | System and method for monitoring combustor |
| CN104583738A (en) * | 2012-08-22 | 2015-04-29 | 西门子能量股份有限公司 | System for remote vibration detection on combustor basket and transition in gas turbines |
| US20160103039A1 (en) * | 2013-04-12 | 2016-04-14 | Siemens Energy, Inc. | Single dynamic pressure sensor based flame monitoring of a gas turbine combustor |
| CN206071849U (en) * | 2016-08-12 | 2017-04-05 | 江阴众和利核仪控技术有限公司 | One seed nucleus level main pump signals of rotational speed sensor ejector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484495A (en) * | 2022-04-18 | 2022-05-13 | 北京航空航天大学 | Thermoacoustic oscillation active control device based on metal particle addition |
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Application publication date: 20180116 |