CN108343974A - A kind of waste incinerator burner hearth temperature measuring equipment, Furnace Temperature Control System and method - Google Patents
A kind of waste incinerator burner hearth temperature measuring equipment, Furnace Temperature Control System and method Download PDFInfo
- Publication number
- CN108343974A CN108343974A CN201810258718.9A CN201810258718A CN108343974A CN 108343974 A CN108343974 A CN 108343974A CN 201810258718 A CN201810258718 A CN 201810258718A CN 108343974 A CN108343974 A CN 108343974A
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- Prior art keywords
- temperature
- burner hearth
- waste incinerator
- furnace
- controlling system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/10—Arrangement of sensing devices
- F23G2207/101—Arrangement of sensing devices for temperature
Abstract
The present invention provides a kind of waste incinerator burner hearth temperature measuring equipments, burner hearth inner top is provided with rotatable first infrared thermography, each wall surface is provided with moveable second infrared thermography in burner hearth, and burner hearth main burning section area internal face is then provided with multiple thermocouples.Present invention correspondence additionally provides a kind of Furnace Temperature Control System and method for controlling furnace temperature.Waste incinerator burner hearth temperature measuring equipment provided by the invention and system, both the temperature of each height dimension transverse inside burner hearth can have been detected in real time, temperature longitudinal in stove can be detected again, realized the comprehensive detection of in-furnace temperature, accurately reduced the distribution of temperature field in furnace；Its corresponding method for controlling furnace temperature, adjusting furnace temperature is fast and effective, and furnace temperature can be made to stablize in a rational range, realize the optimization of combustion process.
Description
Technical field
It is measured the present invention relates to temperature and control technology field, and in particular to a kind of waste incinerator burner hearth temperature measuring equipment,
Furnace Temperature Control System and method.
Background technology
Burning method processing domestic waste have it is innoxious thoroughly, volume reduction loss of weight is apparent, is easy to implement the spies such as recycling
Point obtains relatively broad application in China in recent years.By analyzing the process characteristic of waste incineration it is found that being burnt influencing rubbish
In many factors for burning efficiency, furnace temperature is mostly important.Higher furnace temperature is conducive to quick abundant drying of the rubbish in stove and waves
The precipitation of hair point, ensures the abundant of pyrolytic process, and promote the after-flame of carbon residue, to improve the after-flame degree of rubbish, meets rubbish
The hot igloss amount requirement of rubbish burning disposal；Meanwhile higher furnace temperature is also beneficial to reduce noxious pollutant (such as dioxin)
Discharge.It is also beneficial to improve steam parameter in higher level in addition, stablizing furnace temperature, improves steam quality and yield, really realize
The recycling of rubbish.But the temperature of combustion process is determined by fuel performance, combustion temperatures also bring along relevant height
The problems such as warm slagging, corrosion and increase furnace body burden.
The distribution of temperature field in furnace can reflect operating condition of burning in stove, and reliable basis is provided for the operation of operations staff,
And provide in-furnace temperature signal for the automation equipment of thermal control process.Therefore, if the distribution of energy accurate reproduction temperature field in furnace,
The combustion case of furnace flame being judged in time, and being adjusted and control, furnace temperature is made to stablize in a rational range,
Realize the optimization of burning.
Invention content
The present invention is to make up the deficiencies in the prior art, provides a kind of waste incinerator burner hearth temperature measuring equipment, stove
Temperature control system and control method, realize the comprehensive measurement of incinerator fire box temperature, while furnace temperature can be adjusted
With control, so that furnace temperature is stablized in a rational range, realize the optimization of burning.
The present invention is to reach its purpose, and the technical solution of use is as follows：
A kind of waste incinerator burner hearth temperature measuring equipment, interior burner hearth includes a top surface and four wall surfaces, wall surface bottom section
For the primary combustion zone of waste incineration, it is characterised in that：
First temperature inductor is set to the inner top surface of the burner hearth, to detect temperature longitudinal in burner hearth；
At least one second temperature inductor moving up and down is set in the interior sidewall surface of the burner hearth, to supervise in real time
Survey the temperature of each height region in burner hearth；
At least one third temperature inductor is set in the interior sidewall surface in the burner hearth by primary combustion zone, with accurate
Detect rubbish ignition temperature.
Further, first temperature inductor is set to burner hearth inner top surface center, can in the horizontal plane 360 degree
Rotation；Each second temperature inductor is respectively arranged on the interior sidewall surface of the burner hearth and the junction of adjacent wall surface.
Further, the burner hearth is cuboid structure；First temperature inductor is the first infrared thermography；
The second temperature inductor is the second infrared thermography, shares 4, is respectively arranged on four wall surfaces and wall surface in the burner hearth
Junction；The third temperature inductor is thermocouple, shares 16, and main combustion in the burner hearth is respectively arranged on for one group with 4
On four wall surfaces for burning the inside by region.Being used in combination for infrared thermography and thermocouple, both avoids infrared thermal imaging
The limitation of instrument temperature-measuring range in turn ensures the accuracy that rubbish primary combustion zone temperature measures.
The present invention also provides a kind of Furnace Temperature Control Systems using above-mentioned temperature measuring equipment, including waste incinerator burner hearth to survey
Warm device and temperature-controlling system.The waste incinerator burner hearth temperature measuring equipment is used to detect the temperature in the waste incinerator burner hearth
Degree, and the temperature data of acquisition is fed back into the temperature-controlling system；The temperature-controlling system is used for by adjusting the waste incineration
Stove using parameter so as to adjust the fire box temperature of the waste incinerator.
Further, the temperature-controlling system is multiloop temperature-controlling system, and each circuit includes for adjusting the rubbish
The use parameter of rubbish incinerator fire box temperature；Multiloop temperature-controlling system can burn rubbish using parameter from the difference in multiple circuits
The temperature burnt in stove burner hearth is adjusted and controls, and effectively increases temperature controlled accuracy and success rate in burner hearth.
Further, the control system further includes learning system, when manually adjusting furnace temperature every time for recording described in
Waste incinerator uses supplemental characteristic, and carries out data fitting using supplemental characteristic in conjunction with what the temperature-controlling system had recorded,
Obtain corresponding to using supplemental characteristic and being incorporated in the temperature-controlling system after the furnace temperature is fitted, so that the temperature-controlling system pair
The control of furnace temperature is more accurate.
The present invention also provides a kind of method for controlling furnace temperature using above-mentioned Furnace Temperature Control System, include the following steps：
S1, the waste incinerator burner hearth temperature measuring equipment detect the temperature in the waste incinerator burner hearth, and will obtain
Temperature data feed back to the temperature-controlling system；
Gained temperature data is compared by S2, the temperature-controlling system with preset temperature range value, if at the temperature data
Except preset temperature range value, then the use parameter of the waste incinerator is adjusted, so that temperature is adjusted to default in burner hearth
In temperature range value；If failing accurately to adjust temperature in burner hearth in preset time, send out alarm, manually adjusted described in
The use parameter of waste incinerator.
Further, in step S2, if the temperature data is in except preset temperature range value, pass through the temperature control system
The subloop of system carries out the adjusting using parameter；If failure is carried out by the major loop of the temperature-controlling system using parameter
It adjusts.The adjustable mode of multiloop temperature-controlling system and approach are more so that it is more accurate to the control of furnace temperature.
Further, it if the temperature data is in except preset temperature range value, is returned by the pair of the temperature-controlling system
Road adjusts the secondary air flow of the waste incinerator；If failure, the rubbish is adjusted by the major loop of the temperature-controlling system
Rubbish fermentation dehydration, burner hearth air-supply and the feeding coal of rubbish incinerator.Secondary air flow is a sensitive second parameter so that
Subloop has controls in advance effect, to make control quality increase substantially.
Further, above-mentioned control method further includes step S3, and learning system record manually adjusts institute when furnace temperature every time
The supplemental characteristic that uses of waste incinerator is stated, and quasi- using supplemental characteristic progress data in conjunction with having been recorded in the temperature-controlling system
It closes, obtains corresponding to the use supplemental characteristic after the fitting of the furnace temperature, and be incorporated in the temperature-controlling system, so that the temperature control
System is more accurate to the control of furnace temperature.Learning system may insure temperature-controlling system to temperature controlled accuracy and needle in burner hearth
To property, keep temperature-controlling system more intelligent, effectively reduces the workload of operating personnel.
Compared with the existing technology, the present invention has following advantageous effects：
(1) waste incinerator burner hearth temperature measuring equipment provided by the invention, burner hearth inner top are provided with rotatable infrared heat
Imager, each wall surface is provided with infrared thermography moving up and down in burner hearth, and primary combustion zone wall surface is then set in burner hearth
Multiple thermocouples are set.Based on the structure setting, the present apparatus can both detect the temperature of each height dimension transverse inside burner hearth in real time
Degree, and temperature longitudinal in burner hearth can be detected, the comprehensive detection of in-furnace temperature is realized, in-furnace temperature is accurately reduced
The distribution of field.
(2) waste incinerator burner hearth temperature measuring equipment provided by the invention, uses infrared thermography and combines with thermocouple
The structure used had both avoided the limitation of infrared thermography measuring temperature range, in turn ensured rubbish primary combustion zone temperature
The accuracy measured is spent, meanwhile, decrease the cost that existing thermometry arranges thermocouple in different height.
(3) waste incinerator Furnace Temperature Control System provided by the invention, temperature-controlling system take major loop and subloop
Multiloop design, compared to traditional PID unity loop control strategies, be effectively improved the working frequency of system, shorten
Control time, improves the Control platform of system；Learning system can then optimize multiloop temperature-controlling system, improve
The accuracy of temperature-controlling system operation, and keep temperature adjustment scheme more more targeted than existing thermometry.
(4) garbage incinerator temperature control method provided by the invention, adjusting furnace temperature is fast and effective, furnace temperature can be made to stablize
In a rational temperature range, the optimization of incineration firing process is realized.
Description of the drawings：
Fig. 1 is a kind of structural schematic diagram (front view) of waste incinerator burner hearth temperature measuring equipment provided by the invention；
Fig. 2 is a kind of structural schematic diagram (stereogram) of waste incinerator burner hearth temperature measuring equipment provided by the invention；
Fig. 3 is a kind of flow diagram of garbage incinerator temperature control method provided by the invention；
Fig. 4 is a kind of multiloop temperature control system schematic diagram of garbage incinerator temperature control method provided by the invention.
Reference numeral：1, the first temperature inductor；2, second temperature inductor；3, third temperature inductor；I, catch fire face.
Specific implementation mode
Many details are elaborated in the following description in order to fully understand the present invention.But the present invention can be with
Much implement different from the other modes of this description, those skilled in the art can be without violating the connotation of the present invention
Similar popularization is done, therefore the present invention is not limited by following public specific embodiment.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of waste incinerator burner hearth temperature measuring equipment is present embodiments provided, in burner hearth inner top
The heart, which is equipped with, can overlook entire burner hearth in the first infrared thermography 1 of 360 degree of rotations of horizontal plane, longitudinally surveyed from multiple angles
Measure the temperature in burner hearth；Inside burner hearth the junction of 4 wall surfaces and wall surface be respectively provided with 1 can be vertically moved in burner hearth second
Infrared thermography 2, each second infrared thermography are all made of dynamic sealing mode, can not only ensure that temperature will not in burner hearth
It scatters and disappears, the temperature of each height region in acceptable mobile monitoring stove in real time realizes laterally warm on burner hearth different height section
The measurement of degree；One group of thermocouple 3 is respectively provided in burner hearth on 4 wall surfaces of primary combustion zone, every group of thermocouple 3 there are 4, in laterally
Straight line is arranged, in total 16 thermocouples 3.Each thermocouple 3 can measure the temperature of " point " each in primary combustion zone, final complete
The temperature for each " point " that portion's thermocouple 3 measures constitutes " face " temperature in the complete region.
The course of work of waste incinerator burner hearth temperature measuring equipment provided in this embodiment is as follows：
(1) when refuse incineration grate furnace, which starts, to be run, moveable second infrared thermography 2 is moved to I face that catches fire
On, it completes the measurement of rubbish ignition temperature jointly with thermocouple 3, ensures the accuracy that rubbish ignition temperature measures.
(2) it when refuse incineration grate furnace stable operation, is catching fire on I face, thermocouple 3 is responsible for measuring rubbish main burning area
The temperature in domain, moveable second infrared thermography 2 are responsible for measuring the temperature of each height region in burner hearth, and the two combines to come in
It can measure the temperature of each height lateral cross section in flake hearth-tapping；Rotatable first infrared thermography 1 among burner hearth inner top is then
It is responsible for measuring longitudinal temperature in stove, finally, by combining the temperature of each lateral cross section measured and longitudinal temperature, i.e.,
The thermo parameters method in burner hearth can preparatively be obtained.
Temperature measuring equipment provided in this embodiment uses the structure that infrared thermography is used in combination with thermocouple, both avoids
The limitation of infrared thermography temperature-measuring range in turn ensures the accuracy that the temperature in rubbish primary zone domain measures, realizes
Comprehensive measurement to temperature in burner hearth；Meanwhile multiple movable infrared thermal imaging systems use dynamic sealing mode, not only meet
The temperature detection of each height dimension transverse inside burner hearth, also reduce existing thermometry different height arrange thermocouple at
This.
Embodiment 2
As shown in figure 3, present embodiments providing a kind of furnace temperature of the waste incinerator burner hearth temperature measuring equipment of Application Example 1
Control system, including waste incinerator burner hearth temperature measuring equipment, multiloop temperature-controlling system, alarm system and learning system.Wherein, rubbish
Rubbish incinerator burner hearth temperature measuring equipment is used to detect temperature in waste incinerator burner hearth, and the temperature data of acquisition is fed back to more
Loop temperature control system.
Multiloop temperature-controlling system is used for by adjusting waste incinerator using parameter so as to adjust the stove of waste incinerator
Bore temperature a comprising major loop and a subloop, each circuit all have different adjustable waste incinerator burner hearths
The operational factors of temperature.
Alarm system sends out alarm when then failing the adjustment fire box temperature in preset time for temperature-controlling system, reminds work
Personnel are adjusted manually, until when temperature enters normal range (NR) in burner hearth, alarm system stop alarm.
Learning system is then used to record the supplemental characteristic that uses of waste incinerator when manually adjusting furnace temperature every time, and
Data fitting is carried out using supplemental characteristic in conjunction with what the temperature-controlling system had recorded, obtains corresponding to the use ginseng after furnace temperature fitting
It counts data and is incorporated in the temperature-controlling system, so that the temperature-controlling system is more accurate to the control of furnace temperature.
Embodiment 3
As shown in Figure 3, Figure 4, a kind of Control for Kiln Temperature side of the Furnace Temperature Control System of Application Example 2 is present embodiments provided
Method, key step are as follows：
S1, the waste incinerator burner hearth temperature measuring equipment detect the temperature in the waste incinerator burner hearth, and will obtain
Temperature data feed back to the temperature-controlling system；
Gained temperature data is compared by S2, the temperature-controlling system with preset temperature range value, if at the temperature data
Except preset temperature range value, then the use parameter of the waste incinerator is adjusted, so that temperature is adjusted to default in burner hearth
In temperature range value；If failing accurately to adjust temperature in burner hearth in preset time, send out alarm, manually adjusted described in
The use parameter of waste incinerator.
Wherein, the temperature-controlling system in step S2 is multiloop temperature-controlling system, including there are one major loop and a subloops.
The use parameter of major loop is rubbish fermentation dehydration, burner hearth air-supply and feeding coal.Above three is passed through using parameter with lower section
Formula influences temperature in burner hearth：First, increase the time of rubbish fermentation dehydration, the Lower heat value into stove rubbish can be improved, from
And improve the temperature of incineration firing；Second, increase and decrease feeding coal, fire box temperature can be made accordingly to be raised and lowered；Third, burner hearth are sent
Bellows chamber includes First air and Secondary Air, First air after steam air heater and air preheater heating from garbage incinerator grates lower part into
Enter burner hearth；Secondary Air is room temperature, and air inlet is arranged in burner hearth aditus laryngis portion, and effect is to increase turbulivity in stove.It is special according to air-supply
Point, the main controllable parameter to air-supply include primary air ratio, excess air coefficient and a wind-warm syndrome, and temperature is with First air in burner hearth
The increase of rate and a wind-warm syndrome and increase, reduced with the increase of excess air system.The use parameter of subloop is Secondary Air
Flow, secondary air flow are that air quantity is supplemented necessary to rubbish completely burned, and main function in combustion is control oxygen
Amount, therefore in the case where total blast volume is constant, changes air output and hot aerodynamic field in the length of flame and burner hearth can be changed, change
Become flame central position, to change furnace temperature.
In the present embodiment, since secondary air flow is a sensitive second parameter so that subloop has advanced
Control action, therefore, when except furnace temperature being in safe operating temperature range value, multiloop temperature-controlling system passes through subloop first
Secondary air flow is adjusted, if adjusting furnace temperature fails, then rubbish fermentation dehydration, burner hearth air-supply and feed are adjusted by major loop
Amount.Therefore, which enables to the time constant of equivalent object to greatly reduce, and improves system working efficiency, when shortening control
Between, improve Control platform.
In the present embodiment, in order to reduce the workload of staff, increase the accuracy of multiloop temperature-controlling system regulation and control,
Above-mentioned control method further includes having step S3, there is a learning system in this method.Learning system record manually adjusts furnace temperature every time
When the waste incinerator use supplemental characteristic, and in conjunction with the temperature-controlling system recorded using supplemental characteristic into line number
According to fitting, obtain corresponding to using supplemental characteristic and being incorporated in the temperature-controlling system after the furnace temperature is fitted, so that the control
Warm system is more accurate to the control of furnace temperature.Learning system can be based on big data dynamic and adjust each using parameter, and then make
Much loop temperature control system is more more targeted and more intelligent than existing thermometry.
Finally it should be noted that：It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, although
With reference to embodiment, invention is explained in detail, for those skilled in the art, still can be to aforementioned
Technical solution recorded in each embodiment is modified or equivalent replacement of some of the technical features, but it is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of waste incinerator burner hearth temperature measuring equipment, which is characterized in that including：
First temperature inductor is set to the inner top surface of the burner hearth, to detect temperature longitudinal in burner hearth；
At least one second temperature inductor moving up and down is set in the interior sidewall surface of the burner hearth, to monitor stove in real time
The temperature of each height region in thorax；
At least one third temperature inductor is set in the interior sidewall surface in the burner hearth by primary combustion zone, accurately to detect
Rubbish ignition temperature.
2. a kind of waste incinerator burner hearth temperature measuring equipment according to claim 1, it is characterised in that：
First temperature inductor is set to burner hearth inner top surface center, can 360 degree of rotations in the horizontal plane；It is each described
Second temperature inductor is respectively arranged on the interior sidewall surface of the burner hearth and the junction of adjacent wall surface.
3. a kind of waste incinerator burner hearth temperature measuring equipment according to claim 1 or 2, it is characterised in that：
The burner hearth is cuboid structure；First temperature inductor is the first infrared thermography；
The second temperature inductor is the second infrared thermography, shares 4, be respectively arranged in the burner hearth 4 wall surfaces with
Wall surface junction；
The third temperature inductor is thermocouple, shares 16, and main burning area in the burner hearth is respectively arranged on for one group with 4
On 4 wall surfaces of the inside by domain.
4. a kind of Furnace Temperature Control System, it is characterised in that：Described in temperature-controlling system and claims 1 to 3 any claim
Waste incinerator burner hearth temperature measuring equipment；
The waste incinerator burner hearth temperature measuring equipment is used to detect temperature in the waste incinerator burner hearth, and by the temperature of acquisition
Degrees of data feeds back to the temperature-controlling system；
The temperature-controlling system is used for by adjusting the waste incinerator using parameter so as to adjust the waste incinerator
Fire box temperature.
5. Furnace Temperature Control System according to claim 4, it is characterised in that：The temperature-controlling system is multiloop temperature control system
System.
6. Furnace Temperature Control System according to claim 4 or 5, it is characterised in that：Further include learning system, it is every for recording
Secondary waste incinerator when manually adjusting furnace temperature uses supplemental characteristic, and the use recorded in conjunction with the temperature-controlling system
Supplemental characteristic carries out data fitting, obtains corresponding to using supplemental characteristic and being incorporated in the temperature-controlling system after the furnace temperature is fitted,
So that the temperature-controlling system is more accurate to the control of furnace temperature.
7. a kind of method for controlling furnace temperature using the Furnace Temperature Control System described in any one of claim 4-6 claims, special
Sign is, includes the following steps：
S1, the waste incinerator burner hearth temperature measuring equipment detect the temperature in the waste incinerator burner hearth, and by the temperature of acquisition
Degrees of data feeds back to the temperature-controlling system；
Gained temperature data is compared by S2, the temperature-controlling system with preset temperature range value, if the temperature data is in pre-
If except temperature range value, then the use parameter of the waste incinerator is adjusted, so that temperature is adjusted to preset temperature in burner hearth
In value range；If failing accurately to adjust temperature in burner hearth in preset time, alarm is sent out, carries out manually adjusting the rubbish
The use parameter of incinerator.
8. a kind of method for controlling furnace temperature according to claim 7, it is characterised in that：
In step S2, if the temperature data is in except preset temperature range value, by the subloop of the temperature-controlling system into
The adjusting of enforcement parameter；If failure, the adjusting using parameter is carried out by the major loop of the temperature-controlling system.
9. a kind of method for controlling furnace temperature according to claim 8, it is characterised in that：
In step S2, if the temperature data is in except preset temperature range value, pass through the subloop tune of the temperature-controlling system
The secondary air flow of the whole waste incinerator；If failure, the rubbish is adjusted by the major loop of the temperature-controlling system and is burnt
Burn the rubbish fermentation dehydration, burner hearth air-supply and feeding coal of stove.
10. according to a kind of method for controlling furnace temperature of claim 7-9 any one of them, it is characterised in that：
Further include step S3, waste incinerator when learning system record manually adjusts furnace temperature every time uses parameter number
According to, and data fitting is carried out using supplemental characteristic in conjunction with having been recorded in the temperature-controlling system, obtain the fitting for corresponding to the furnace temperature
Afterwards using supplemental characteristic and being incorporated in the temperature-controlling system so that the temperature-controlling system is more accurate to the control of furnace temperature
Really.
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| CN201810258718.9A CN108343974A (en) | 2018-03-27 | 2018-03-27 | A kind of waste incinerator burner hearth temperature measuring equipment, Furnace Temperature Control System and method |
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| CN110377938A (en) * | 2019-06-10 | 2019-10-25 | 南京科瑞节能环保科技有限公司 | A kind of coke oven vertical flame path temperature field analysis method |
| JP2020128837A (en) * | 2019-02-08 | 2020-08-27 | Ｊｆｅエンジニアリング株式会社 | Waste supply amount measurement device and method and waste incineration device and method |
| CN111765477A (en) * | 2020-06-24 | 2020-10-13 | 广州环投从化环保能源有限公司 | Secondary air control method for garbage incinerator |
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