CN109654519A - The operation method of soot blower system and soot blower system - Google Patents
The operation method of soot blower system and soot blower system Download PDFInfo
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- CN109654519A CN109654519A CN201910122523.6A CN201910122523A CN109654519A CN 109654519 A CN109654519 A CN 109654519A CN 201910122523 A CN201910122523 A CN 201910122523A CN 109654519 A CN109654519 A CN 109654519A
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- slagging
- soot
- soot blower
- temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
- F23J3/023—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the fireside of watertubes in boilers
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- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The present invention provides a kind of soot blower system and the operation methods of soot blower system.Wherein, soot blower system, comprising: soot blower, soot blower are located in boiler；Multiple temperature-detecting devices, multiple temperature-detecting devices are arranged at intervals on the outer wall of the water-cooling wall of boiler；Control unit, soot blower and temperature-detecting device are connect with control unit, the working condition for the temperature signal control soot blower that control unit is acquired according to temperature-detecting device.The present invention solves the problems, such as that soot blower system can not accurately control soot blowing path and blowing pressure in the prior art.
Description
Technical field
The present invention relates to furnace of power-plant boilers cleaning technology fields, in particular to a kind of soot blower system and pot
The operation method of furnace soot blower system.
Background technique
In pulverized-coal fired boiler operation, due to being rich in alkali metal in coal, water cooling wall surface almost all is covered by slag blanket in burner hearth
Lid, flow to dry bottom hopper along water-cooling wall in molten condition.It is larger that conventional steam soot-blower is difficult to purge viscosity on water-cooling wall
Stream slag, therefore hydraulic soot blower need to be used, and it is that high-pressure cold water stream passes through the mode of combustion zone and carries out that waterpower soot blowing, which is taken,
Purging, this can generate certain influence to Combustion Operation of Boilers, operating parameter, especially purging region water-cooling wall slagging situation and throwing
Water is incompatible cause water screen tube split even booster the problem of.
For waterpower soot blower system, one is writing into preset running track in control system, when operation, cannot
It is adjusted according to practical slagging situation, on the one hand causes water waste phenomenon, on the other hand there is non-slagging or the weaker area of slagging
The water-cooling wall in domain directly sprays the phenomenon that damaging by water power sootblower；Another kind is equipped with burner hearth coking monitoring system
, using intelligent control, fixed point decoking, but control system mistake can be carried out according to the coking position that burner hearth coking detection system is fed back
In simple, the region division for usually in advance controlling some water power sootblower is several zonules, is opened based on the feedback signal
The soot blowing program of dynamic corresponding region cannot accomplish the injection pressure that water power sootblower is adjusted according to the slagging degree of different location,
Control method is not fine and smooth enough；
For slagging monitoring system, substantially monitored according to using the heat-flow meter being pre-installed in burner hearth, but this side
Method more can not accurately obtain slagging position and slagging degree；
For existing intelligent control soot blower system, usually bonded boiler operating condition only takes a parameter as soot blowing
Signal source, it is more single, it can not accomplish effective soot blowing in time.
It can be seen from the above, soot blower system, which exists in the prior art, can not accurately control soot blowing path and blowing pressure
Problem.
Summary of the invention
The main purpose of the present invention is to provide a kind of soot blower system and the operation methods of soot blower system, with solution
The problem of certainly soot blower system can not accurately control soot blowing path and blowing pressure in the prior art.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of soot blower system, comprising: blow
Grey device, soot blower are located in boiler；Multiple temperature-detecting devices, multiple temperature-detecting devices are arranged at intervals on the water-cooling wall of boiler
Outer wall on；Control unit, soot blower and temperature-detecting device are connect with control unit, and control unit is acquired according to temperature-detecting device
Temperature signal control soot blower working condition.
Further, soot blower has multiple ash blowing mouthes, and multiple ash blowing mouthes correspond to multiple temperature-detecting devices.
Further, soot blower is multiple and all has ash blowing mouth, and multiple soot blowers correspond to multiple temperature-detecting devices.
Further, soot blower has ash blowing mouth, and soot blower is movably disposed in boiler.
According to another aspect of the present invention, a kind of operation method of soot blower system is provided, soot blower system is
Above-mentioned soot blower system, operation method include: multiple temperature-detecting devices acquisition different location of soot blower system
The water cooling wall temperature of boiler；The processing unit of the control unit of soot blower system receives the temperature of temperature-detecting device acquisition, really
Determine soot blowing path；The soot blower of soot blower system carries out soot blowing operation according to soot blowing path.
Further, in the step of determining soot blowing path, processing unit is according to the operating parameter and temperature detection of boiler
The temperature of device acquisition determines slagging coefficient isogram.
Further, the operating parameter of boiler includes evaporation capacity, the boiler of the temperature of temperature-detecting device acquisition, boiler
Intake, the coal input quantity of boiler, steam pressure, coal-fired type and boiler burner operation mode.
Further, in the step of determining soot blowing path, each region is calculated according to obtained slagging coefficient isogram
Practical slagging coefficient maximum value and integrated value, and be compared with the maximum value of default slagging coefficient and integrated value, with true
Determine soot blowing path.
Further, during being compared practical slagging coefficient with default slagging coefficient, if practical slagging system
When several maximum values is more than or equal to the maximum value of default slagging coefficient, start soot blower；If and/or the integral of practical slagging coefficient
When value is more than or equal to the integrated value of default slagging coefficient, start soot blower.
Further, operation method further includes the soot blowing pressure that each region is calculated according to obtained slagging coefficient isogram
Power.
Further, after soot blowing operation, processing unit is examined according to the operating parameter and Current Temperatures of current boiler
The temperature for surveying device acquisition determines current slagging coefficient isogram, and the storage unit of boiler is by current slagging coefficient isogram
Storage.
Further, operation method further include: processing unit will obtain before current slagging coefficient isogram and soot blowing operation
To slagging coefficient isogram be compared, to determine blowing pressure.
It applies the technical scheme of the present invention, the soot blower system in the application includes: soot blower, multiple temperature detections dress
It sets and control unit.Soot blower is located in boiler；Multiple temperature-detecting devices are arranged at intervals on the outer wall of the water-cooling wall of boiler；
Soot blower and temperature-detecting device are connect with control unit, and the temperature signal control that control unit is acquired according to temperature-detecting device is blown
The working condition of grey device.
Using above structure soot blower system when, can first pass through be arranged on boiler water wall multiple temperature inspection
It surveys device and temperature acquisition is carried out to the specific location of the water-cooling wall of boiler, and collected temperature signal is sent to control unit；
Control unit can be handled the temperature signal of acquisition, and be controlled according to resulting data are handled soot blower.To
Can be during soot blower soot blowing, control by control unit to soot blower realizes boiler water wall different location
Soot blowing parameter is different.So as to judged according to the temperature signal of water-cooling wall different location water-cooling wall different location slagging
Degree, and then soot blowing path and blowing pressure are set according to the difference of slagging degree.It can also be filled simultaneously according to temperature detection
It sets the slagging degree to water-cooling wall and carries out real-time monitoring.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the soot blower system of a specific embodiment according to the present invention；
Fig. 2 shows arrangement schematic diagram of the temperature-detecting device on water-cooling wall in the present invention；
Fig. 3 shows the soot blowing area schematic of the soot blower in the present invention；
Fig. 4 shows the slagging coefficient isogram in the present invention in another embodiment.
Wherein, the above drawings include the following reference numerals:
10, soot blower；20, temperature-detecting device；30, control unit；31, processing unit；32, temperature difference transmitter；33, it runs
Database；40, water-cooling wall.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually needle
For direction shown in the drawings, or for component itself is on vertical, vertical or gravity direction；Equally
Ground for ease of understanding and describes, and " inside and outside " refers to the inside and outside of the profile relative to each component itself, but the above-mentioned noun of locality is not
For limiting the present invention.
In order to solve the problems, such as that soot blower system can not accurately control soot blowing path and blowing pressure in the prior art, this
Application provides the operation method of a kind of soot blower system and soot blower system.
Soot blower system in the application includes: soot blower 10, multiple temperature-detecting devices 20 and control unit 30.It blows
Grey device 10 is located in boiler；Multiple temperature-detecting devices 20 are arranged at intervals on the outer wall of water-cooling wall 40 of boiler；Soot blower 10
It is connect with control unit 30 with temperature-detecting device 20, control unit 30 is controlled according to the temperature signal that temperature-detecting device 20 acquires
The working condition of soot blower 10.
Using above structure soot blower system when, the multiple temperature being arranged on boiler water wall 40 can be first passed through
Detection device 20 carries out temperature acquisition to the specific location of the water-cooling wall 40 of boiler, and collected temperature signal is sent to control
Portion 30 processed；Control unit 30 can be handled the temperature signal of acquisition, and according to handle resulting data to soot blower 10 into
Row control.So as to during 10 soot blowing of soot blower, control by control unit 30 to soot blower 10 realizes boiler
The soot blowing parameter of 40 different location of water-cooling wall is different.So as to judge water according to the temperature signal of 40 different location of water-cooling wall
The slagging degree of the different location of cold wall 40, and then soot blowing path and blowing pressure are set according to the difference of slagging degree.Together
When real-time monitoring can also be carried out to the slagging degree of water-cooling wall 40 according to temperature-detecting device 20.
Optionally, temperature-detecting device 20 can be thermocouple.Control unit 30 includes temperature difference transmitter 32, processing unit
31, operation data library 33.Wherein, processing unit 31 can be central processing unit.
In this embodiment, soot blower 10 is multiple and all has ash blowing mouth, the corresponding multiple temperature inspections of multiple soot blowers 10
Survey device 20.It is arranged in this way, when different temperature-detecting devices 20 detects 40 different location of water-cooling wall, due to
The degree of 40 slagging of water-cooling wall is different, in this way, can be foundation according to the detection signal of temperature-detecting device 20, only to water
The position of soot blowing is needed to carry out soot blowing in cold wall 40, rather than when being only that 40 somewhere of water-cooling wall needs soot blowing, just to entire water
Cold wall 40 carries out soot blowing.Moreover, by the way that multiple ash blowing mouthes are arranged, additionally it is possible to according to the difference of slagging thickness, according to the pressure of setting
The soot blower 10 of power unlatching different number.
Specifically, soot blower 10 has ash blowing mouth, and soot blower 10 is movably disposed in boiler.It is arranged in this way,
Soot blower 10 can be enable to carry out soot blowing to the position that do not have to of water-cooling wall 40 from different angles, so as to guarantee soot blowing mistake
Journey is more flexible.Certainly, setting can equally be adjusted blowing pressure in this way.Optionally, soot blower 10 is swingably set
It sets in the boiler.
As shown in figure 3, a1, a2, a3, b1, b2, b3 respectively represent different soot blowers 10, A1, A2, A3, B1, B2, B3 divide
The soot blowing area to corresponding soot blower 10 is not represented.
In another embodiment, soot blower 10 has multiple ash blowing mouthes, and multiple ash blowing mouthes correspond to multiple temperature detection dresses
Set 20.It is arranged in this way, when 40 slagging of boiler water wall is more, and is unevenly distributed, multiple ash blowing mouthes, which are arranged, can make to blow
Grey device 10 has biggish pressure range, to can make when the water-cooling wall 40 to different slagging thickness carries out soot blowing
The blowing pressure of different ash blowing mouthes is different.
In the operation method of soot blower system in this application, soot blower system is above-mentioned boiler soot-blowing system
System, operation method include: the water-cooling wall 40 that multiple temperature-detecting devices 20 of soot blower system acquire the boiler of different location
Temperature；The processing unit 31 of the control unit 30 of soot blower system receives the temperature that temperature-detecting device 20 acquires, and determination is blown
Grey path；The soot blower 10 of soot blower system carries out soot blowing operation according to soot blowing path.Therefore, this with temperature-detecting device
20 judge 40 slagging thickness of water-cooling wall, and the method for blowing ash schemes is determined with this, can make soot blower system during soot blowing
Dynamic regulation is carried out to soot blowing parameter according to detection data.
Specifically, in the step of determining soot blowing path, processing unit 31 is according to the operating parameter and temperature detection of boiler
The temperature that device 20 acquires determines slagging coefficient isogram.Each boiler is during carrying out practically in different service conditions
Under, 40 back side of water-cooling wall temperature can rise the generation temperature difference due to heat absorption along one fixed spacing of Working fluid flow direction.When water-cooling wall 40
When slagging, will affect heat transfer reduces thermal coefficient, so that 40 two sides temperature of water-cooling wall be made to increase, stains more serious, temperature difference meeting
It is bigger.According to the difference variation near corresponding measuring point, it is converted into slagging coefficient, and obtain the isogram in the region, thermocouple
Arrangement is more intensive, and slagging coefficient isogram is more accurate.
In fig. 4 it is shown that the slagging coefficient isogram of the water-cooling wall 40 in a specific embodiment.Specifically, can
With according in Fig. 4, the label of different location determines the slagging coefficient of 40 different location of water-cooling wall.Also, as shown in figure 4, scheming
In show the slagging coefficient value of portion.
Optionally, the operating parameter of boiler includes evaporation capacity, the boiler of the temperature of the acquisition of temperature-detecting device 20, boiler
Intake, the coal input quantity of boiler, steam pressure, coal-fired type and boiler burner operation mode.By selection to more ginsengs
Number is handled, and can design more various blowing ash schemes in this way.
Specifically, in the step of determining soot blowing path, each region is calculated according to obtained slagging coefficient isogram
The maximum value and integrated value of practical slagging coefficient, and be compared with the maximum value of default slagging coefficient and integrated value, with determination
Soot blowing path.In this way, calculating the slagging coefficient in the region most according to computer program after obtaining slagging coefficient isogram
Big value and integrated value, the signal as starting soot blowing.Maximum constraint avoids regional area slagging from crossing to be serious, and integrated value avoids
Though control area without maximum average slagging level it is more serious.
Specifically, operation method further includes the blowing pressure that each region is calculated according to obtained slagging coefficient isogram.
Blowing pressure is to calculate gained according to slagging coefficient isogram, and when reaching soot blowing condition, system is first determined in the region
Soot blowing path, i.e. the pivot angle process of water power sootblower 10, determine soot blowing pressure further according to slagging coefficient isogram and soot blowing path
The function change procedure of power.
The specific method for calculating slagging coefficient is, as shown in Figure 1, in a soot-blowing control region, with 40 back side of water-cooling wall
For a, b two o'clock, the distance of wherein a, b point-to-point transmission are Δ x:
Δ T=Ta-Tb
Δ T'=Ta'-Tb'
Wherein, when Δ T is heating surface cleaning, a when gained, the temperature difference of b two o'clock are calculated according to operating condition；Δ T ' be by
The temperature difference of a when hot face slagging, b two o'clock；
Slagging coefficient ε:
Wherein,Value range is (0,1), and smaller slagging is serious；A is that the conversion of temperature signal to slagging coefficient is closed
System, slagging coefficient ε value range are (0,10), and bigger slagging is more serious.
εmax=max (ε1,ε2,ε3,…)
Wherein, ε1, ε2, ε3For the slagging coefficient at several measuring points in the region；εmaxMost for the region slagging coefficient
Big value；Ε is the integrated value of the region slagging coefficient.
Work as εmaxWith when any value reaches setting value in Ε, starting soot blower 10 carries out soot blowing.
And when calculating blowing pressure, when soot-blowing control region selected by Fig. 1 slagging coefficient ε after, can be obtained with it is flat
Functional relation ε (xy) between areal coordinate x, y.Also determine slagging coefficient isogram for determining soot blowing path according to the function simultaneously
It is used with blowing pressure.
When determining soot blowing path, according to isogram slagging range, simply put down with blowing pressure variation according to soot blowing path
Slow principle determines soot blowing path l:
L=f (xy)
It, can be true according to the variation of slagging coefficient on soot blowing path after soot blowing path determines when determining blowing pressure
Determine the variation of blowing pressure:
Pl=B εl
Wherein, PlFor variation function of the blowing pressure on the l of soot blowing path；εlFor letter of the slagging coefficient on the l of soot blowing path
Number relationship；Functional relation of the B between slagging coefficient and blowing pressure.
The criteria for classifying in region is determined according to the purging range of the water power sootblower 10 of selection, and principle is covering burner hearth institute
There is the region of heating surface, in order to avoid there is purging blind area, there can be lap.And each region is evenly equipped with multiple acquisition temperature
The detection device of degree, each region have a sensor to be corresponding to it.
After furnace heating surface subregion, there are independent water power sootblower 10 and corresponding monitoring slagging coefficient in each region
System, soot blowing path then refer to that when a certain region reaches soot blowing condition, control system can be according to the region slagging index profile
Determine the pivot angle process and the variation of blowing pressure of water power sootblower 10, main purpose one is to reduce to purge band along fixed route
The time cost come；Another is then to avoid the not serious region of slagging, prevents water from directly spraying high-temperature surface.
In addition, general control system can set maximum while purge region when multiple regions reach purging condition simultaneously, keep away
Exempt from water power sootblower 10 in furnace while spraying excessive water, influences coal dust firing state in furnace.
Specifically, during being compared practical slagging coefficient with default slagging coefficient, if practical slagging coefficient
Maximum value when being more than or equal to the maximum value of default slagging coefficient, start soot blower 10.
Specifically, if the integrated value of practical slagging coefficient is more than or equal to the integrated value of default slagging coefficient, start soot blowing
Device 10.
During boiler operatiopn, the slagging degree of each measuring point is judged according to the operating condition of the back side temperature difference and boiler,
And slagging degree is defined with slagging coefficient 0-10, and equivalent according to the slagging coefficient that the slagging coefficient of each measuring point calculates the region
Line chart and functional integration value, when certain region slagging coefficient maximum value be greater than be manually set the region the slagging coefficient upper limit,
Or functional integration value be greater than the region setting value when, central processing unit can be according to slagging coefficient isogram and motion profile
The pressure variation function for calculating the water power sootblower 10 in the corresponding region, and guides water power sootblower 10 to carry out soot blowing.
Specifically, after soot blowing operation, processing unit 31 is examined according to the operating parameter and Current Temperatures of current boiler
It surveys the temperature that device 20 acquires and determines current slagging coefficient isogram, the storage unit of boiler is by current slagging coefficient isopleth
Figure storage.Slagging technology isogram is stored, it in this way can be to slagging situation of the boiler under different operating parameters
It is recorded.To which enough isograms by storage compare judgement with the curve graph obtained in real time.
Specifically, operation method further include: processing unit 31 will obtain before current slagging coefficient isogram and soot blowing operation
To slagging coefficient isogram be compared, to determine blowing pressure.After each waterpower soot blowing, database can be incited somebody to action
Slagging coefficient profiles versus before the slagging coefficient isogram and soot blowing that arrive calculates soot blowing by slagging coefficient for correcting again
The relational expression of pressure.If slagging is still more serious after soot blowing, next time increases blowing pressure；If slagging coefficient very little after soot blowing, next time
Blowing pressure should suitably be reduced, waterpower soot blowing is avoided directly to impact the danger of 40 heating surface of water-cooling wall.
In a specific embodiment, thermocouple is arranged according to method as shown in Figure 2, thermocouple is in single water-cooling wall
Spacing is Δ x on 40.When the distance between thermocouple is arranged, distance is closer, and thermocouple arranges closeer, slagging coefficient isogram
It establishes closer to true slagging situation.Slagging coefficient test philosophy is as follows:
Wherein, q is 40 working medium of water-cooling wall caloric receptivity；It in temperature is the equal of corresponding two temperatures measuring point that λ, which is 40 working medium of water-cooling wall,
Thermal coefficient under value；Δ T is the temperature difference of adjacent two measuring point；Δ x is the distance of adjacent two side point；
Temperature signal will be measured and be converted to electric signal, and pass to central processing unit, central processing unit calculates in real time
Caloric receptivity q, and shared with data in operation data library 33.Correspond to the caloric receptivity and reality when the heating surface cleaning under operating condition
When caloric receptivity be compared, calculate real-time slagging coefficient under corresponding operating condition by size of the difference；
According to the temperature value of each two neighboring thermocouple, real-time slagging coefficient is calculated according to the above method, and is established each
The slagging coefficient isogram in region；
Calculate the maximum value and integrated value of the slagging coefficient of each region in real time according to slagging coefficient isogram, and real
When be compared with the maximum value of the slagging coefficient of artificial settings and integrated value；
When the maximum value or integrated value of slagging coefficient reach the setting value in the region, starting waterpower soot blower system, starting step
It is rapid as follows:
1. establishing soot blowing path and water power sootblower 10 along the pressure in purging path according to real-time slagging coefficient isogram
Power delta data chain；
2. starting waterpower soot blower system by the data-link generated；
3. after soot blowing, slagging coefficient isogram is established again, and by the slagging coefficient isogram before and after soot blowing
Optimization is compared with soot blowing data-link, i.e., B (functional relation between slagging coefficient and blowing pressure) is optimized, to be
System can according to established after multiple soot blowing soot blowing path when more adapting to the boiler operatiopn and water power sootblower 10 along purging road
The method for building up of the pressure change data-link of diameter.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
1, the present invention combines pressure and the purging path of slagging coefficient system intelligent control water power sootblower 10, can be more
Accurately purge slagging region and smaller to the lighter domain impairment of the non-slagging of water-cooling wall 40 or slagging；
2, the present invention uses back side temperature differential method thermometric, and equivalent according to the slagging coefficient that boiler operatiopn data establish each region
Line chart, temperature-detecting device 20 are arranged in 40 back side of water-cooling wall, do not need to punch on 40 fin of water-cooling wall, just to water-cooling wall 40
Normal influence on system operation is smaller and easy for installation；
3, the present invention is believed using the maximum value and integrated value of the slagging coefficient in each region as the starting of water power sootblower 10
Number, it is possible to prevente effectively from the slagging of each region part is blocked up and two kinds of phenomenons of uniform large-area slagging occur；
4, when burner hearth has small coal type change, soot blower system can voluntarily 10 edge of optimized sootblowing path and water power sootblower
Purge the method for building up of the pressure change data-link in path.
Obviously, above-mentioned the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments should fall within the scope of the present invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of soot blower system characterized by comprising
Soot blower (10), the soot blower (10) are located in boiler；
Multiple temperature-detecting devices (20), multiple temperature-detecting devices (20) are arranged at intervals on the water-cooling wall of the boiler
(40) on outer wall；
Control unit (30), the soot blower (10) and the temperature-detecting device (20) are connect with the control unit (30), institute
State the work shape that control unit (30) controls the soot blower (10) according to the temperature signal that the temperature-detecting device (20) acquires
State.
2. soot blower system according to claim 1, which is characterized in that the soot blower (10) has multiple soot blowings
Mouthful, multiple ash blowing mouthes correspond to multiple temperature-detecting devices (20).
3. soot blower system according to claim 1, which is characterized in that the soot blower (10) is multiple and all has
Ash blowing mouth, multiple corresponding multiple temperature-detecting devices (20) of the soot blower (10).
4. soot blower system according to claim 1, which is characterized in that the soot blower (10) has ash blowing mouth, institute
Soot blower (10) is stated to be movably disposed in the boiler.
5. a kind of operation method of soot blower system, which is characterized in that the soot blower system is in Claims 1-4
Described in any item soot blower systems, the operation method include:
The temperature of the water-cooling wall (40) of the boiler of multiple temperature-detecting devices (20) acquisition different location of the soot blower system
Degree；
The processing unit (31) of the control unit (30) of the soot blower system receives temperature-detecting device (20) acquisition
Temperature determines soot blowing path；
The soot blower (10) of the soot blower system carries out soot blowing operation according to the soot blowing path.
6. operation method according to claim 5, which is characterized in that described in the determining soot blowing path the step of
Processing unit (31) determines slagging system according to the temperature of the operating parameter of the boiler and the temperature-detecting device (20) acquisition
Number isogram.
7. operation method according to claim 6, which is characterized in that the operating parameter of the boiler includes the temperature inspection
Survey the temperature of device (20) acquisition, evaporation capacity, the intake of the boiler, the coal input quantity of the boiler, the steam of the boiler
The operation mode of the burner of pressure, coal-fired type and the boiler.
8. operation method according to claim 6, which is characterized in that in the determining soot blowing path the step of, according to
Obtained slagging coefficient isogram calculates the maximum value and integrated value of the practical slagging coefficient in each region, and with default slagging system
Several maximum values and integrated value are compared, with the determination soot blowing path.
9. operation method according to claim 8, which is characterized in that by the practical slagging coefficient and the default knot
During slag system number is compared,
If the maximum value of the practical slagging coefficient is more than or equal to the maximum value of the default slagging coefficient, start the soot blowing
Device (10)；And/or
If the integrated value of the practical slagging coefficient is more than or equal to the integrated value of the default slagging coefficient, start the soot blowing
Device (10).
10. operation method according to any one of claims 6 to 9, which is characterized in that the operation method further includes root
The blowing pressure in each region is calculated according to obtained slagging coefficient isogram.
11. operation method according to claim 10, which is characterized in that after soot blowing operation, the processing
The temperature determination that unit (31) is acquired according to the operating parameter of presently described boiler with presently described temperature-detecting device (20) is worked as
The storage unit of preceding slagging coefficient isogram, the boiler stores the current slagging coefficient isogram.
12. operation method according to claim 11, which is characterized in that the operation method further include:
The slagging that the processing unit (31) will obtain before the current slagging coefficient isogram and soot blowing operation
Coefficient isogram is compared, with the determination blowing pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910122523.6A CN109654519B (en) | 2019-02-19 | 2019-02-19 | Boiler soot blowing system and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910122523.6A CN109654519B (en) | 2019-02-19 | 2019-02-19 | Boiler soot blowing system and operation method thereof |
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| CN110986066A (en) * | 2019-12-24 | 2020-04-10 | 华能沁北发电有限责任公司 | Boiler soot blower temperature and pressure protection control method |
| CN112365564A (en) * | 2020-11-13 | 2021-02-12 | 华润电力(唐山曹妃甸)有限公司 | Temperature monitoring method and device, electronic equipment and readable storage medium |
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| CN113847611B (en) * | 2021-08-18 | 2022-04-12 | 浙江大学 | Intelligent soot blowing system and method for power station boiler furnace |
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