CN110314544A - Control method, equipment, storage medium and the device of ammonia flow - Google Patents
Control method, equipment, storage medium and the device of ammonia flow Download PDFInfo
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- CN110314544A CN110314544A CN201910601903.8A CN201910601903A CN110314544A CN 110314544 A CN110314544 A CN 110314544A CN 201910601903 A CN201910601903 A CN 201910601903A CN 110314544 A CN110314544 A CN 110314544A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
The invention discloses a kind of control methods of ammonia flow, equipment, storage medium and device, the present invention, by the first amount of nitrogen oxides for obtaining the first smoke inlet in coal unit, obtain the second amount of nitrogen oxides of the second smoke inlet in coal unit, and obtain the third amount of nitrogen oxides of environmentally friendly discharge outlet in coal unit, based on first amount of nitrogen oxides, second amount of nitrogen oxides and third amount of nitrogen oxides determine the target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in the coal unit, the content of the nitrogen oxides of amount of nitrogen oxides and environment protection emission mouth based on two smoke inlets, the content tendency of nitrogen oxides in whole system is prejudged, so that it is determined that the target ammonia flow of spray ammonia pipeline to be adjusted and spray ammonia pipeline to be adjusted, so that ammonia flow Control is changed in advance, the air pollution caused by avoiding a large amount of discharged nitrous oxides into air.
Description
Technical field
The present invention relates to denitration technology field more particularly to a kind of control method of ammonia flow, equipment, storage medium and
Device.
Background technique
Coal unit selective catalytic reduction (Selective Catalytic Reduction, SCR) system includes A/B
Two sides, fire coal flue gas after high-temp combustion generate a large amount of nitrogen oxides (including NO, NO2And NOxDeng), under the action of catalyst
By ammonia and reaction of nitrogen oxides at nitrogen and water, to substantially reduce the nitrogen oxides in flue gas, reach environment protection emission mark
It is quasi-.But in SCR system, spray ammonia is very few to will cause reaction not exclusively, and environment protection emission is exceeded, when spraying ammonia excess, the nitre of generation
Sour ammonium and ammonium nilrite cause air preheater to block, to influence the normal work of air preheater heat exchange efficiency and boiler.How to close
Reason control spray ammonia flow, so that the discharge amount stabilization for making nitrogen oxides is problem anxious to be resolved.
Ammonia enters SCR reactor by spray ammonia pipeline and reacts with smoke catalytic, and reaction product reaches denitration mouth, then carries out
Sample detection probably needs 1~2 minute, and reaction product reaches environment protection emission mouth, then is sampled detection, probably needs 5 points
Which clock either export, be sampled detection at, exceeded in detection amount of nitrogen oxides, then carries out the control of ammonia flow,
Certain pollution is all caused to air.
Summary of the invention
The main purpose of the present invention is to provide a kind of control method of ammonia flow, equipment, storage medium and device, purports
It is solving in SCR system, the technical issues of excessively lag for the control of ammonia flow.
To achieve the above object, the present invention provides a kind of control method of ammonia flow, the described method comprises the following steps:
The first amount of nitrogen oxides of the first smoke inlet in coal unit is obtained, the second flue gas in coal unit is obtained and enters
Second amount of nitrogen oxides of mouth, and obtain the third amount of nitrogen oxides of environmentally friendly discharge outlet in coal unit；
The combustion is determined based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
The target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in coal unit.
Preferably, described to be contained based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third nitrogen oxides
Amount determines the target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in the coal unit, specifically
Include:
Determine the first speedup value corresponding with first amount of nitrogen oxides, determining and second amount of nitrogen oxides
Corresponding second speedup value, and determine third speedup value corresponding with the third amount of nitrogen oxides；
When the first speedup value is more than default speedup value, by the corresponding first spray ammonia pipeline of first smoke inlet
As spray ammonia pipeline to be adjusted, the first correction value is generated, determines the of the first spray ammonia pipeline based on first correction value
One ammonia flow, and using first ammonia flow as the target ammonia flow；
When the second speedup value is more than default speedup value, by the corresponding second spray ammonia pipeline of second smoke inlet
As spray ammonia pipeline to be adjusted, the second correction value is generated, determines the of the second spray ammonia pipeline based on second correction value
Two ammonia flows, and using second ammonia flow as the target ammonia flow；
When the third speedup value is more than default speedup value, the first spray ammonia pipeline and the second spray ammonia pipeline are made
For spray ammonia pipeline to be adjusted, third correction value is generated, the third of the first spray ammonia pipeline is determined based on the third correction value
4th ammonia flow of ammonia flow and the second spray ammonia pipeline, and using the third ammonia flow as the first spray ammonia pipeline
Target ammonia flow, using the 4th ammonia flow as it is described second spray ammonia pipeline target ammonia flow.
Preferably, described to be contained based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third nitrogen oxides
After amount determines the target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in the coal unit,
The method also includes:
Obtain the 5th nitrogen oxidation of the 4th amount of nitrogen oxides of the first exhanst gas outlet, the second exhanst gas outlet in coal unit
Object content and current third amount of nitrogen oxides；
4th amount of nitrogen oxides is compared with the first default content value, by the pentoxide content with
Second default content value compares, and the current third amount of nitrogen oxides is preset content value with third and is compared；
When the 4th amount of nitrogen oxides is more than the first default content value, the 4th correction value is generated, based on described the
Four correction values are adjusted the current ammonia flow of the first spray ammonia pipeline；
When the 5th amount of nitrogen oxides is more than the second default content value, the 5th correction value is generated, based on described the
Five correction values are adjusted the current ammonia flow of the second spray ammonia pipeline；
When the current third amount of nitrogen oxides is more than that third presets content value, the 6th correction value is generated, institute is based on
The 6th correction value is stated to be adjusted the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline.
Preferably, described to compare the 4th amount of nitrogen oxides with the first default content value, by the described 5th
Oxide content is compared with the second default content value, and the current third amount of nitrogen oxides and third are preset content
After value compares, the method also includes:
When the 4th amount of nitrogen oxides is less than the first default content value, the 4th amount of nitrogen oxides
When being less than the second default content value, the current third amount of nitrogen oxides be less than third preset content value when；
Determine corresponding with the 4th amount of nitrogen oxides the 4th speedup value and with the 5th amount of nitrogen oxides
Corresponding 5th speedup value；
When the 4th speedup value is more than default speedup value, the 7th correction value is generated, and be based on the 7th correction value
The current ammonia flow of the first ammonia pipeline is adjusted；
When the 5th speedup value is more than default speedup value, the 8th correction value is generated, and be based on the 8th correction value
The current ammonia flow of the second ammonia pipeline is adjusted.
Preferably, described to be contained based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third nitrogen oxides
After amount determines the target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in the coal unit,
The method also includes:
Obtain the 4th amount of nitrogen oxides of the first exhanst gas outlet and the 5th nitrogen oxygen of the second exhanst gas outlet in coal unit
Compound content；
When the difference of the 4th amount of nitrogen oxides and the 5th amount of nitrogen oxides is more than preset threshold, to described the
The current ammonia flow of one jet pipe pipeline and the second jet pipe pipeline is adjusted.
Preferably, described to be contained based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third nitrogen oxides
After amount determines the target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in the coal unit,
The method also includes:
The information on load of the coal unit is monitored；
When the information on load changes, the 9th correction value is generated based on default rule, and be based on the described 9th
The current ammonia flow of correction value, the first spray ammonia pipeline and the second spray ammonia pipeline is adjusted.
Preferably, described to be contained based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third nitrogen oxides
After amount determines the target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in the coal unit,
The method also includes:
Obtain the work state information of the coal pulverizer of the coal unit；
When the work state information of the coal pulverizer meets preset condition, the tenth correction value is generated, and based on described the
Ten correction values are adjusted the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline.
In addition, to achieve the above object, the present invention also provides a kind of control equipment of ammonia flow, the equipment includes:
Memory, processor and the control program for being stored in the ammonia flow that can be run on the memory and on the processor,
The control program of the ammonia flow realizes the control method of ammonia flow as described above when being executed by the processor
Step.
In addition, to achieve the above object, the present invention also provides a kind of storage medium, being stored with ammonia on the storage medium
The control program of flow, the control program of the ammonia flow realize the control of ammonia flow as described above when being executed by processor
The step of method processed.
In addition, to achieve the above object, the present invention also provides a kind of control device of ammonia flow, the ammonia flow
Control device includes:
Module is obtained, for obtaining the first amount of nitrogen oxides of the first smoke inlet in coal unit, obtains coal burning machine
Second amount of nitrogen oxides of the second smoke inlet in group, and the third nitrogen oxides for obtaining environmentally friendly discharge outlet in coal unit contains
Amount；
Module is adjusted, for being based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third nitrogen oxides
Content determines the target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in the coal unit.
In the present invention, it by obtaining the first amount of nitrogen oxides of the first smoke inlet in coal unit, obtains coal-fired
Second amount of nitrogen oxides of the second smoke inlet in unit, and obtain the third nitrogen oxides of environmentally friendly discharge outlet in coal unit
Content determines the fire coal based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
The target ammonia flow of spray ammonia pipeline to be adjusted in unit and the spray ammonia pipeline to be adjusted, based on two smoke inlets
The content of the nitrogen oxides of amount of nitrogen oxides and environment protection emission mouth carries out the content tendency of the nitrogen oxides in whole system
Anticipation, so that it is determined that the target ammonia flow of spray ammonia pipeline to be adjusted and spray ammonia pipeline to be adjusted, so that the control to ammonia flow
System is changed in advance, the air pollution caused by avoiding a large amount of discharged nitrous oxides into air.
Detailed description of the invention
Fig. 1 is the device structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to；
Fig. 2 is the flow diagram of the control method first embodiment of ammonia flow of the present invention；
Fig. 3 is the flow diagram of the control method second embodiment of ammonia flow of the present invention；
Fig. 4 is the functional block diagram of the control device first embodiment of ammonia flow of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Referring to Fig.1, Fig. 1 is the device structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to.
As shown in Figure 1, the equipment may include: processor 1001, such as CPU, communication bus 1002, user interface
1003, network interface 1004, memory 1005.Wherein, communication bus 1002 is for realizing the connection communication between these components.
User interface 1003 may include display screen (Display), optional user interface 1003 can also include standard wireline interface,
Wireless interface.Network interface 1004 optionally may include standard wireline interface and wireless interface (such as Wi-Fi interface).Storage
Device 1005 can be high speed RAM memory, be also possible to stable memory (non-volatile memory), such as disk
Memory.Memory 1005 optionally can also be the storage server independently of aforementioned processor 1001.
The control of the ammonia flow is set it will be understood by those skilled in the art that structure shown in Fig. 1 is not constituted
Standby restriction may include perhaps combining certain components or different component layouts than illustrating more or fewer components.
As shown in Figure 1, as may include operating device, network communication mould in a kind of memory 1005 of storage medium
The control program of block, Subscriber Interface Module SIM and ammonia flow.
In equipment shown in Fig. 1, network interface 1004 is mainly used for connecting background server, with the background server
Carry out data communication；User interface 1003 is mainly used for connecting user equipment；The equipment calls storage by processor 1001
The control program of the ammonia flow stored in device 1005, and execute the control method of ammonia flow provided in an embodiment of the present invention.
The equipment calls the control program of the ammonia flow stored in memory 1005 by processor 1001, and executes
It operates below:
The first amount of nitrogen oxides of the first smoke inlet in coal unit is obtained, the second flue gas in coal unit is obtained and enters
Second amount of nitrogen oxides of mouth, and obtain the third amount of nitrogen oxides of environmentally friendly discharge outlet in coal unit；
The combustion is determined based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
The target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in coal unit.
Further, processor 1001 can call the control program of the ammonia flow stored in memory 1005, also hold
The following operation of row:
Determine the first speedup value corresponding with first amount of nitrogen oxides, determining and second amount of nitrogen oxides
Corresponding second speedup value, and determine third speedup value corresponding with the third amount of nitrogen oxides；
When the first speedup value is more than default speedup value, by the corresponding first spray ammonia pipeline of first smoke inlet
As spray ammonia pipeline to be adjusted, the first correction value is generated, determines the of the first spray ammonia pipeline based on first correction value
One ammonia flow, and using first ammonia flow as the target ammonia flow；
When the second speedup value is more than default speedup value, by the corresponding second spray ammonia pipeline of second smoke inlet
As spray ammonia pipeline to be adjusted, the second correction value is generated, determines the of the second spray ammonia pipeline based on second correction value
Two ammonia flows, and using second ammonia flow as the target ammonia flow；
When the third speedup value is more than default speedup value, the first spray ammonia pipeline and the second spray ammonia pipeline are made
For spray ammonia pipeline to be adjusted, third correction value is generated, the third of the first spray ammonia pipeline is determined based on the third correction value
4th ammonia flow of ammonia flow and the second spray ammonia pipeline, and using the third ammonia flow as the first spray ammonia pipeline
Target ammonia flow, using the 4th ammonia flow as it is described second spray ammonia pipeline target ammonia flow.
Further, processor 1001 can call the control program of the ammonia flow stored in memory 1005, also hold
The following operation of row:
Obtain the 5th nitrogen oxidation of the 4th amount of nitrogen oxides of the first exhanst gas outlet, the second exhanst gas outlet in coal unit
Object content and current third amount of nitrogen oxides；
4th amount of nitrogen oxides is compared with the first default content value, by the pentoxide content with
Second default content value compares, and the current third amount of nitrogen oxides is preset content value with third and is compared；
When the 4th amount of nitrogen oxides is more than the first default content value, the 4th correction value is generated, based on described the
Four correction values are adjusted the current ammonia flow of the first spray ammonia pipeline；
When the 5th amount of nitrogen oxides is more than the second default content value, the 5th correction value is generated, based on described the
Five correction values are adjusted the current ammonia flow of the second spray ammonia pipeline；
When the current third amount of nitrogen oxides is more than that third presets content value, the 6th correction value is generated, institute is based on
The 6th correction value is stated to be adjusted the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline.
Further, processor 1001 can call the control program of the ammonia flow stored in memory 1005, also hold
The following operation of row:
When the 4th amount of nitrogen oxides is less than the first default content value, the 4th amount of nitrogen oxides
When being less than the second default content value, the third amount of nitrogen oxides be less than third preset content value when；
Determine corresponding with the 4th amount of nitrogen oxides the 4th speedup value and with the 5th amount of nitrogen oxides
Corresponding 5th speedup value；
When the 4th speedup value is more than default speedup value, the 7th correction value is generated, and be based on the 7th correction value
The current ammonia flow of the first ammonia pipeline is adjusted；
When the 5th speedup value is more than default speedup value, the 8th correction value is generated, and be based on the 8th correction value
The current ammonia flow of the second ammonia pipeline is adjusted.
Further, processor 1001 can call the control program of the ammonia flow stored in memory 1005, also hold
The following operation of row:
Obtain the 4th amount of nitrogen oxides of the first exhanst gas outlet and the 5th nitrogen oxygen of the second exhanst gas outlet in coal unit
Compound content；
When the difference of the 4th amount of nitrogen oxides and the 5th amount of nitrogen oxides is more than preset threshold, to described the
The current ammonia flow of one jet pipe pipeline and the second jet pipe pipeline is adjusted.
Further, processor 1001 can call the control program of the ammonia flow stored in memory 1005, also hold
The following operation of row:
The information on load of the coal unit is monitored；
When the information on load changes, the 9th correction value is generated based on default rule, and be based on the described 9th
The current ammonia flow of correction value, the first spray ammonia pipeline and the second spray ammonia pipeline is adjusted.
Further, processor 1001 can call the control program of the ammonia flow stored in memory 1005, also hold
The following operation of row:
Obtain the work state information of the coal pulverizer of the coal unit；
When the work state information of the coal pulverizer meets preset condition, the tenth correction value is generated, and based on described the
Ten correction values are adjusted the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline.
In the present embodiment, by obtaining the first amount of nitrogen oxides of the first smoke inlet in coal unit, combustion is obtained
Second amount of nitrogen oxides of the second smoke inlet in coal unit, and obtain the third nitrogen oxidation of environmentally friendly discharge outlet in coal unit
Object content determines the combustion based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
The target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in coal unit, is based on two smoke inlets
Amount of nitrogen oxides and environment protection emission mouth nitrogen oxides content, to the content tendency of the nitrogen oxides in whole system into
Row anticipation, so that it is determined that the target ammonia flow of spray ammonia pipeline to be adjusted and spray ammonia pipeline to be adjusted, so as to ammonia flow
Control is changed in advance, the air pollution caused by avoiding a large amount of discharged nitrous oxides into air.
Based on above-mentioned hardware configuration, the embodiment of the control method of ammonia flow of the present invention is proposed.
It is the flow diagram of the control method first embodiment of ammonia flow of the present invention referring to Fig. 2, Fig. 2.
In the first embodiment, the ammonia flow control method the following steps are included:
Step S10: obtaining the first amount of nitrogen oxides of the first smoke inlet in coal unit, obtains the in coal unit
Second amount of nitrogen oxides of two smoke inlets, and obtain the third amount of nitrogen oxides of environmentally friendly discharge outlet in coal unit.
It is understood that in " first ", " the second nitrogen oxides " in " the first nitrogen oxides " in the present embodiment
" third " in " second " and " third nitrogen oxides " does not constitute any restrictions to the nitrogen oxides, the first nitrogen oxygen
The ingredient of nitrogen oxides representated by compound, the second nitrogen oxides and third nitrogen oxides may be identical, it is of course also possible to
It is different, is only intended to distinguish the nitrogen oxides of different location here.
Similarly, other " first ", " second " and " third " etc. in present specification, it all only plays to allied substances
The effect distinguished, without any restriction effect.
Specifically, when carrying out amount of nitrogen oxides acquisition, the mode obtained in real time can be taken, interval can also be taken
The mode of acquisition still in order to guarantee that the content to the nitrogen oxides entered in SCR system can enter good monitoring, is being adopted
When taking the mode of interval acquiring, the interval time between the acquisition twice of setting cannot be too long.
Step S20: true based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
The target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in the fixed coal unit.
Specifically, spray ammonia pipeline to be adjusted in the coal unit and described wait adjust can be determined by following steps
The target ammonia flow of whole spray ammonia pipeline:
Determine the first speedup value corresponding with first amount of nitrogen oxides, determining and second amount of nitrogen oxides
Corresponding second speedup value, and determine third speedup value corresponding with the third amount of nitrogen oxides；
When the first speedup value is more than default speedup value, by the corresponding first spray ammonia pipeline of first smoke inlet
As spray ammonia pipeline to be adjusted, the first correction value is generated, determines the of the first spray ammonia pipeline based on first correction value
One ammonia flow, and using first ammonia flow as the target ammonia flow；
When the second speedup value is more than default speedup value, by the corresponding second spray ammonia pipeline of second smoke inlet
As spray ammonia pipeline to be adjusted, the second correction value is generated, determines the of the second spray ammonia pipeline based on second correction value
Two ammonia flows, and using second ammonia flow as the target ammonia flow；
When the third speedup value is more than default speedup value, the first spray ammonia pipeline and the second spray ammonia pipeline are made
For spray ammonia pipeline to be adjusted, third correction value is generated, the third of the first spray ammonia pipeline is determined based on the third correction value
4th ammonia flow of ammonia flow and the second spray ammonia pipeline, and using the third ammonia flow as the first spray ammonia pipeline
Target ammonia flow, using the 4th ammonia flow as it is described second spray ammonia pipeline target ammonia flow.
It should be noted that in the specific implementation, it is pre-set respectively with the first speedup value, the second speedup value and
The default speedup value of third speedup value comparison can be identical, be also possible to different, to be arranged in this programme default speedups
Value is identical, but is also allowed in other schemes, and different default speedup values is arranged.
Specifically, when the first speedup value is more than default speedup value, by first smoke inlet corresponding first
Ammonia pipeline is sprayed as spray ammonia pipeline to be adjusted, and according to the size of the specific first speedup value, in conjunction with the catalysis of SCR system
The reaction ratio of nitrogen oxides and ammonia in reaction generates the first correction value, is based on first correction value, to first spray
The current ammonia flow of ammonia pipeline is modified, and the first ammonia flow of the first spray ammonia pipeline is determined, by described first
Ammonia flow is as the target ammonia flow.
When the second speedup value is more than default speedup value, by the corresponding second spray ammonia pipeline of second smoke inlet
As spray ammonia pipeline to be adjusted, and according to the size of the specific second speedup value, in conjunction with SCR system catalysis reaction in nitrogen
The reaction ratio of oxide and ammonia generates the second correction value, is based on second correction value, to the second spray ammonia pipeline
Current ammonia flow is modified, and determines the second ammonia flow of the second spray ammonia pipeline, and by second ammonia flow
Amount is used as the target ammonia flow.
Correspondingly, it when the corresponding third speedup value of the third amount of nitrogen oxides is more than default increment, needs simultaneously
The ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline is adjusted simultaneously.Specifically, third correction value is generated,
Based on the third correction value to the current ammonia flow of the first spray ammonia pipeline, third ammonia flow is generated, to second
The current ammonia flow of spray ammonia pipeline is adjusted, and the 4th ammonia flow is generated, using the third ammonia flow as described in
The target ammonia flow of first spray ammonia pipeline, using the 4th ammonia flow as the target ammonia flow of the second spray ammonia pipeline
Amount.
In the present embodiment, actually to the first amount of nitrogen oxides, the second amount of nitrogen oxides and third nitrogen oxides
Content is monitored, and grasps the amount of nitrogen oxides tendency of each pipeline, the case where the amount of nitrogen oxides increases
Under, the ammonia flow of corresponding spray ammonia pipeline is adjusted in advance in time, that is, what is taken is to carry out obscuring in advance to ammonia flow
It surveys, thus the strategy coped in time.
Further, spray ammonia pipeline to be adjusted in the coal unit and spray ammonia pipeline to be adjusted is being determined
Target ammonia flow, and it is adjusted based on ammonia flow of the target ammonia flow to the spray ammonia pipeline to be adjusted
Afterwards, the effect after adjustment can be investigated, specifically, can be investigated by following steps:
Obtain the 5th nitrogen oxidation of the 4th amount of nitrogen oxides of the first exhanst gas outlet, the second exhanst gas outlet in coal unit
Object content and current third amount of nitrogen oxides；
4th amount of nitrogen oxides is compared with the first default content value, by the pentoxide content with
Second default content value compares, and the third amount of nitrogen oxides is preset content value with third and is compared；
When the 4th amount of nitrogen oxides is more than the first default content value, the 4th correction value is generated, based on described the
Four correction values are adjusted the current ammonia flow of the first spray ammonia pipeline；
When the 5th amount of nitrogen oxides is more than the second default content value, the 5th correction value is generated, based on described the
Five correction values are adjusted the current ammonia flow of the second spray ammonia pipeline；
When the current third amount of nitrogen oxides is more than that third presets content value, the 6th correction value is generated, institute is based on
The 6th correction value is stated to be adjusted the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline.
It is understood that illustrating the first spray ammonia when the 4th amount of nitrogen oxides has been more than the first default content
The ammonia flow of pipeline can not reach requirement, i.e., can not be reacted completely the nitrogen oxides for carrying out pipeline, therefore,
The 4th correction value can be generated, adjusted based on current ammonia flow of the 4th correction value to the first spray ammonia pipeline
It is whole.
When the 5th amount of nitrogen oxides is more than the second default content, illustrate that the ammonia flow of the second spray ammonia pipeline does not have
Have and reach requirement, therefore, the 5th correction value can be generated, based on the 5th correction value to the current of the second spray ammonia pipeline
Ammonia flow is adjusted.
It should be noted that current third amount of nitrogen oxides herein is the nitrogen oxidation of the environment protection emission mouth after adjustment
Object content is needed when the current third amount of nitrogen oxides is more than that third presets content value to the first spray ammonia pipeline and the
The current ammonia flow of two spray ammonia pipelines is adjusted separately.
Further, when the 4th amount of nitrogen oxides is less than the first default content value, the 4th nitrogen
When oxide content is less than the second default content value, the current third amount of nitrogen oxides is less than third and presets content value
When, the amount of nitrogen oxides of the first exhanst gas outlet and the second exhanst gas outlet can be monitored, be made with playing preferably prediction
With specifically, being carried out by following steps:
Determine corresponding with the 4th amount of nitrogen oxides the 4th speedup value and with the 5th amount of nitrogen oxides
Corresponding 5th speedup value；
When the 4th speedup value is more than default speedup value, the 7th correction value is generated, and be based on the 7th correction value
The current ammonia flow of the first ammonia pipeline is adjusted；
When the 5th speedup value is more than default speedup value, the 8th correction value is generated, and be based on the 8th correction value
The current ammonia flow of the second ammonia pipeline is adjusted.
In the present embodiment, two entrances in SCR system and the amount of nitrogen oxides of outlet are monitored simultaneously, energy
Enough play better prediction effect.
In the present embodiment, by obtaining the first amount of nitrogen oxides of the first smoke inlet in coal unit, obtain coal-fired
Second amount of nitrogen oxides of the second smoke inlet in unit, and obtain the third nitrogen oxides of environmentally friendly discharge outlet in coal unit
Content determines the fire coal based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
The target ammonia flow of spray ammonia pipeline to be adjusted in unit and the spray ammonia pipeline to be adjusted, based on two smoke inlets
The content of the nitrogen oxides of amount of nitrogen oxides and environment protection emission mouth carries out the content tendency of the nitrogen oxides in whole system
Anticipation, so that it is determined that the target ammonia flow of spray ammonia pipeline to be adjusted and spray ammonia pipeline to be adjusted, so that the control to ammonia flow
System is changed in advance, the air pollution caused by avoiding a large amount of discharged nitrous oxides into air.
It is the flow diagram of the control method second embodiment of ammonia flow of the present invention referring to Fig. 3, Fig. 3, based on above-mentioned
Embodiment shown in Fig. 2 proposes the second embodiment of the control method of ammonia flow of the present invention.
In a second embodiment, after the step S20, which comprises
Step S30: the 4th amount of nitrogen oxides and the second exhanst gas outlet of the first exhanst gas outlet in coal unit are obtained
5th amount of nitrogen oxides.
Step S40: when the difference of the 4th amount of nitrogen oxides and the 5th amount of nitrogen oxides is more than preset threshold,
The current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline is adjusted.
In the concrete realization, it can obtain, can also be contained with the 4th nitrogen oxides of the first exhanst gas outlet of interval acquiring in real time
5th amount of nitrogen oxides of amount and the second exhanst gas outlet, in the 4th amount of nitrogen oxides and the 5th amount of nitrogen oxides
When difference is more than preset threshold, it is believed that two spray ammonia pipelines have the spray unbalanced situation of ammonia, can be to first spray
The current ammonia flow of ammonia pipeline and the second spray ammonia pipeline is adjusted.
It is understood that the load variations of boiler and the mistake of unlatching and stopping in coal pulverizer in the coal unit
Cheng Zhong, the content into nitrogen oxides in SCR system can have greatly changed, and therefore, it is necessary to be directed to special situation, setting
Special treatment mechanism.
Specifically, the information on load of the coal unit can be monitored, when the information on load changes,
The 9th correction value is generated based on default rule, and is based on the 9th correction value, the first spray ammonia pipeline and the second spray ammonia
The current ammonia flow of pipeline is adjusted.
Further, the work state information for obtaining the coal pulverizer of the coal unit, in the work shape of the coal pulverizer
When state information meets preset condition, generate the tenth correction value, and based on the tenth correction value to it is described first spray ammonia pipeline and
The current ammonia flow of second spray ammonia pipeline is adjusted.
The working condition for obtaining the coal pulverizer of the coal unit, when the working condition of the coal pulverizer changes,
When starting or stoping, corresponding correction value is generated, and based on the correction value to the first spray ammonia pipeline and the second spray ammonia
The current ammonia flow of pipeline is adjusted.
In the present embodiment, to the 4th amount of nitrogen oxides of the first exhanst gas outlet and the 5th nitrogen oxidation of the second exhanst gas outlet
Object content is monitored, excessive in the 4th amount of nitrogen oxides and the 5th amount of nitrogen oxides difference, and two spray ammonia pipelines reproduce
When apparent spray ammonia imbalance, the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline is adjusted, meanwhile, it is based on
What coal unit was likely to occur is introduced into the case where amount of nitrogen oxides is uprushed in SCR system, also provides corresponding countermeasure,
The amount of nitrogen oxides in flue gas to guarantee entire coal unit discharge meets environmental emission standard.
In addition, the embodiment of the present invention also proposes a kind of storage medium, the control of ammonia flow is stored on the storage medium
Processing procedure sequence realizes following operation when the control program of the ammonia flow is executed by processor:
The first amount of nitrogen oxides of the first smoke inlet in coal unit is obtained, the second flue gas in coal unit is obtained and enters
Second amount of nitrogen oxides of mouth, and obtain the third amount of nitrogen oxides of environmentally friendly discharge outlet in coal unit；
The combustion is determined based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
The target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in coal unit.
Further, following operation is also realized when the control program of the ammonia flow is executed by processor:
Determine the first speedup value corresponding with first amount of nitrogen oxides, determining and second amount of nitrogen oxides
Corresponding second speedup value, and determine third speedup value corresponding with the third amount of nitrogen oxides；
When the first speedup value is more than default speedup value, by the corresponding first spray ammonia pipeline of first smoke inlet
As spray ammonia pipeline to be adjusted, the first correction value is generated, determines the of the first spray ammonia pipeline based on first correction value
One ammonia flow, and using first ammonia flow as the target ammonia flow；
When the second speedup value is more than default speedup value, by the corresponding second spray ammonia pipeline of second smoke inlet
As spray ammonia pipeline to be adjusted, the second correction value is generated, determines the of the second spray ammonia pipeline based on second correction value
Two ammonia flows, and using second ammonia flow as the target ammonia flow；
When the third speedup value is more than default speedup value, the first spray ammonia pipeline and the second spray ammonia pipeline are made
For spray ammonia pipeline to be adjusted, third correction value is generated, the third of the first spray ammonia pipeline is determined based on the third correction value
4th ammonia flow of ammonia flow and the second spray ammonia pipeline, and using the third ammonia flow as the first spray ammonia pipeline
Target ammonia flow, using the 4th ammonia flow as it is described second spray ammonia pipeline target ammonia flow.
Further, following operation is also realized when the control program of the ammonia flow is executed by processor:
Obtain the 5th nitrogen oxidation of the 4th amount of nitrogen oxides of the first exhanst gas outlet, the second exhanst gas outlet in coal unit
Object content and current third amount of nitrogen oxides；
4th amount of nitrogen oxides is compared with the first default content value, by the pentoxide content with
Second default content value compares, and the current third amount of nitrogen oxides is preset content value with third and is compared；
When the 4th amount of nitrogen oxides is more than the first default content value, the 4th correction value is generated, based on described the
Four correction values are adjusted the current ammonia flow of the first spray ammonia pipeline；
When the 5th amount of nitrogen oxides is more than the second default content value, the 5th correction value is generated, based on described the
Five correction values are adjusted the current ammonia flow of the second spray ammonia pipeline；
When the current third amount of nitrogen oxides is more than that third presets content value, the 6th correction value is generated, institute is based on
The 6th correction value is stated to be adjusted the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline.
Further, following operation is also realized when the control program of the ammonia flow is executed by processor:
When the 4th amount of nitrogen oxides is less than the first default content value, the 4th amount of nitrogen oxides
When being less than the second default content value, the current third amount of nitrogen oxides be less than third preset content value when；
Determine corresponding with the 4th amount of nitrogen oxides the 4th speedup value and with the 5th amount of nitrogen oxides
Corresponding 5th speedup value；
When the 4th speedup value is more than default speedup value, the 7th correction value is generated, and be based on the 7th correction value
The current ammonia flow of the first ammonia pipeline is adjusted；
When the 5th speedup value is more than default speedup value, the 8th correction value is generated, and be based on the 8th correction value
The current ammonia flow of the second ammonia pipeline is adjusted.
Further, following operation is also realized when the control program of the ammonia flow is executed by processor:
Obtain the 4th amount of nitrogen oxides of the first exhanst gas outlet and the 5th nitrogen oxygen of the second exhanst gas outlet in coal unit
Compound content；
When the difference of the 4th amount of nitrogen oxides and the 5th amount of nitrogen oxides is more than preset threshold, to described the
The current ammonia flow of one jet pipe pipeline and the second jet pipe pipeline is adjusted.
Further, following operation is also realized when the control program of the ammonia flow is executed by processor:
The information on load of the coal unit is monitored；
When the information on load changes, the 9th correction value is generated based on default rule, and be based on the described 9th
The current ammonia flow of correction value, the first spray ammonia pipeline and the second spray ammonia pipeline is adjusted.
Further, following operation is also realized when the control program of the ammonia flow is executed by processor:
Obtain the work state information of the coal pulverizer of the coal unit；
When the work state information of the coal pulverizer meets preset condition, the tenth correction value is generated, and based on described the
Ten correction values are adjusted the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline.
In the present embodiment, by obtaining the first amount of nitrogen oxides of the first smoke inlet in coal unit, combustion is obtained
Second amount of nitrogen oxides of the second smoke inlet in coal unit, and obtain the third nitrogen oxidation of environmentally friendly discharge outlet in coal unit
Object content determines the combustion based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
The target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in coal unit, is based on two smoke inlets
Amount of nitrogen oxides and environment protection emission mouth nitrogen oxides content, to the content tendency of the nitrogen oxides in whole system into
Row anticipation, so that it is determined that the target ammonia flow of spray ammonia pipeline to be adjusted and spray ammonia pipeline to be adjusted, so as to ammonia flow
Control is changed in advance, the air pollution caused by avoiding a large amount of discharged nitrous oxides into air.
It is the functional block diagram of the control device first embodiment of ammonia flow of the present invention referring to Fig. 4, Fig. 4, based on described
The control method of ammonia flow proposes the first embodiment of the control device of ammonia flow of the present invention.
In the present embodiment, the control device of the ammonia flow includes:
Module 10 is obtained, for obtaining the first amount of nitrogen oxides of the first smoke inlet in coal unit, is obtained coal-fired
Second amount of nitrogen oxides of the second smoke inlet in unit, and obtain the third nitrogen oxides of environmentally friendly discharge outlet in coal unit
Content.
It is understood that in " first ", " the second nitrogen oxides " in " the first nitrogen oxides " in the present embodiment
" third " in " second " and " third nitrogen oxides " does not constitute any restrictions to the nitrogen oxides, the first nitrogen oxygen
The ingredient of nitrogen oxides representated by compound, the second nitrogen oxides and third nitrogen oxides may be identical, it is of course also possible to
It is different, is only intended to distinguish the nitrogen oxides of different location here.
Similarly, other " first ", " second " and " third " etc. in present specification, it all only plays to allied substances
The effect distinguished, without any restriction effect.
Specifically, when carrying out amount of nitrogen oxides acquisition, the mode obtained in real time can be taken, interval can also be taken
The mode of acquisition still in order to guarantee that the content to the nitrogen oxides entered in SCR system can enter good monitoring, is being adopted
When taking the mode of interval acquiring, the interval time between the acquisition twice of setting cannot be too long.
Module 20 is adjusted, for being based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third nitrogen oxidation
Object content determines the target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in the coal unit.
Specifically, spray ammonia pipeline to be adjusted in the coal unit and described wait adjust can be determined by following steps
The target ammonia flow of whole spray ammonia pipeline:
Determine the first speedup value corresponding with first amount of nitrogen oxides, determining and second amount of nitrogen oxides
Corresponding second speedup value, and determine third speedup value corresponding with the third amount of nitrogen oxides；
When the first speedup value is more than default speedup value, by the corresponding first spray ammonia pipeline of first smoke inlet
As spray ammonia pipeline to be adjusted, the first correction value is generated, determines the of the first spray ammonia pipeline based on first correction value
One ammonia flow, and using first ammonia flow as the target ammonia flow；
When the second speedup value is more than default speedup value, by the corresponding second spray ammonia pipeline of second smoke inlet
As spray ammonia pipeline to be adjusted, the second correction value is generated, determines the of the second spray ammonia pipeline based on second correction value
Two ammonia flows, and using second ammonia flow as the target ammonia flow；
When the third speedup value is more than default speedup value, the first spray ammonia pipeline and the second spray ammonia pipeline are made
For spray ammonia pipeline to be adjusted, third correction value is generated, the third of the first spray ammonia pipeline is determined based on the third correction value
4th ammonia flow of ammonia flow and the second spray ammonia pipeline, and using the third ammonia flow as the first spray ammonia pipeline
Target ammonia flow, using the 4th ammonia flow as it is described second spray ammonia pipeline target ammonia flow.
It should be noted that in the specific implementation, it is pre-set respectively with the first speedup value, the second speedup value and
The default speedup value of third speedup value comparison can be identical, be also possible to different, to be arranged in this programme default speedups
Value is identical, but is also allowed in other schemes, and different default speedup values is arranged.
Specifically, when the first speedup value is more than default speedup value, by first smoke inlet corresponding first
Ammonia pipeline is sprayed as spray ammonia pipeline to be adjusted, and according to the size of the specific first speedup value, in conjunction with the catalysis of SCR system
The reaction ratio of nitrogen oxides and ammonia in reaction generates the first correction value, is based on first correction value, to first spray
The current ammonia flow of ammonia pipeline is modified, and the first ammonia flow of the first spray ammonia pipeline is determined, by described first
Ammonia flow is as the target ammonia flow.
When the second speedup value is more than default speedup value, by the corresponding second spray ammonia pipeline of second smoke inlet
As spray ammonia pipeline to be adjusted, and according to the size of the specific second speedup value, in conjunction with SCR system catalysis reaction in nitrogen
The reaction ratio of oxide and ammonia generates the second correction value, is based on second correction value, to the second spray ammonia pipeline
Current ammonia flow is modified, and determines the second ammonia flow of the second spray ammonia pipeline, and by second ammonia flow
Amount is used as the target ammonia flow.
Correspondingly, it when the corresponding third speedup value of the third amount of nitrogen oxides is more than default increment, needs simultaneously
The ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline is adjusted simultaneously.Specifically, third correction value is generated,
Based on the third correction value to the current ammonia flow of the first spray ammonia pipeline, third ammonia flow is generated, to second
The current ammonia flow of spray ammonia pipeline is adjusted, and the 4th ammonia flow is generated, using the third ammonia flow as described in
The target ammonia flow of first spray ammonia pipeline, using the 4th ammonia flow as the target ammonia flow of the second spray ammonia pipeline
Amount.
In the present embodiment, actually to the first amount of nitrogen oxides, the second amount of nitrogen oxides and third nitrogen oxides
Content is monitored, and grasps the amount of nitrogen oxides tendency of each pipeline, the case where the amount of nitrogen oxides increases
Under, the ammonia flow of corresponding spray ammonia pipeline is adjusted in advance in time, that is, what is taken is to carry out obscuring in advance to ammonia flow
It surveys, thus the strategy coped in time.
Further, spray ammonia pipeline to be adjusted in the coal unit and spray ammonia pipeline to be adjusted is being determined
Target ammonia flow, and it is adjusted based on ammonia flow of the target ammonia flow to the spray ammonia pipeline to be adjusted
Afterwards, the effect after adjustment can be investigated, specifically, can be investigated by following steps:
Obtain the 5th nitrogen oxidation of the 4th amount of nitrogen oxides of the first exhanst gas outlet, the second exhanst gas outlet in coal unit
Object content and current third amount of nitrogen oxides；
4th amount of nitrogen oxides is compared with the first default content value, by the pentoxide content with
Second default content value compares, and the third amount of nitrogen oxides is preset content value with third and is compared；
When the 4th amount of nitrogen oxides is more than the first default content value, the 4th correction value is generated, based on described the
Four correction values are adjusted the current ammonia flow of the first spray ammonia pipeline；
When the 5th amount of nitrogen oxides is more than the second default content value, the 5th correction value is generated, based on described the
Five correction values are adjusted the current ammonia flow of the second spray ammonia pipeline；
When the current third amount of nitrogen oxides is more than that third presets content value, the 6th correction value is generated, institute is based on
The 6th correction value is stated to be adjusted the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline.
It is understood that illustrating the first spray ammonia when the 4th amount of nitrogen oxides has been more than the first default content
The ammonia flow of pipeline can not reach requirement, i.e., can not be reacted completely the nitrogen oxides for carrying out pipeline, therefore,
The 4th correction value can be generated, adjusted based on current ammonia flow of the 4th correction value to the first spray ammonia pipeline
It is whole.
When the 5th amount of nitrogen oxides is more than the second default content, illustrate that the ammonia flow of the second spray ammonia pipeline does not have
Have and reach requirement, therefore, the 5th correction value can be generated, based on the 5th correction value to the current of the second spray ammonia pipeline
Ammonia flow is adjusted.
It should be noted that current third amount of nitrogen oxides herein is the nitrogen oxidation of the environment protection emission mouth after adjustment
Object content is needed when the current third amount of nitrogen oxides is more than that third presets content value to the first spray ammonia pipeline and the
The current ammonia flow of two spray ammonia pipelines is adjusted separately.
Further, when the 4th amount of nitrogen oxides is less than the first default content value, the 4th nitrogen
When oxide content is less than the second default content value, the current third amount of nitrogen oxides is less than third and presets content value
When, the amount of nitrogen oxides of the first exhanst gas outlet and the second exhanst gas outlet can be monitored, be made with playing preferably prediction
With specifically, being carried out by following steps:
Determine corresponding with the 4th amount of nitrogen oxides the 4th speedup value and with the 5th amount of nitrogen oxides
Corresponding 5th speedup value；
When the 4th speedup value is more than default speedup value, the 7th correction value is generated, and be based on the 7th correction value
The current ammonia flow of the first ammonia pipeline is adjusted；
When the 5th speedup value is more than default speedup value, the 8th correction value is generated, and be based on the 8th correction value
The current ammonia flow of the second ammonia pipeline is adjusted.
In the present embodiment, two entrances in SCR system and the amount of nitrogen oxides of outlet are monitored simultaneously, energy
Enough play better prediction effect.
In the present embodiment, by obtaining the first amount of nitrogen oxides of the first smoke inlet in coal unit, obtain coal-fired
Second amount of nitrogen oxides of the second smoke inlet in unit, and obtain the third nitrogen oxides of environmentally friendly discharge outlet in coal unit
Content determines the fire coal based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
The target ammonia flow of spray ammonia pipeline to be adjusted in unit and the spray ammonia pipeline to be adjusted, based on two smoke inlets
The content of the nitrogen oxides of amount of nitrogen oxides and environment protection emission mouth carries out the content tendency of the nitrogen oxides in whole system
Anticipation, so that it is determined that the target ammonia flow of spray ammonia pipeline to be adjusted and spray ammonia pipeline to be adjusted, so that the control to ammonia flow
System is changed in advance, the air pollution caused by avoiding a large amount of discharged nitrous oxides into air.
It will be appreciated that each module in the control device of the ammonia flow is also used to realize each step in the above method
Suddenly, details are not described herein.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
The use of word first, second, and third does not indicate any sequence, these words can be construed to title.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal intelligent TV (can be mobile phone, calculate
Machine, server, air conditioner or network intelligence TV etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of control method of ammonia flow, which is characterized in that the described method includes:
The first amount of nitrogen oxides of the first smoke inlet in coal unit is obtained, the second smoke inlet in coal unit is obtained
Second amount of nitrogen oxides, and obtain the third amount of nitrogen oxides of environmentally friendly discharge outlet in coal unit；
The coal burning machine is determined based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
The target ammonia flow of spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in group.
2. the method as described in claim 1, which is characterized in that described to be based on first amount of nitrogen oxides, the second nitrogen oxygen
Compound content and third amount of nitrogen oxides determine spray ammonia pipeline to be adjusted and the spray to be adjusted in the coal unit
The target ammonia flow of ammonia pipeline, specifically includes:
Determine the first speedup value corresponding with first amount of nitrogen oxides, determination is corresponding with second amount of nitrogen oxides
The second speedup value, and determine corresponding with third amount of nitrogen oxides third speedup value；
When the first speedup value is more than default speedup value, will first smoke inlet corresponding first spray ammonia pipeline as
Spray ammonia pipeline to be adjusted generates the first correction value, and the first ammonia of the first spray ammonia pipeline is determined based on first correction value
Throughput, and using first ammonia flow as the target ammonia flow；
When the second speedup value is more than default speedup value, will second smoke inlet corresponding second spray ammonia pipeline as
Spray ammonia pipeline to be adjusted generates the second correction value, and the second ammonia of the second spray ammonia pipeline is determined based on second correction value
Throughput, and using second ammonia flow as the target ammonia flow；
When the third speedup value is more than default speedup value, by the first spray ammonia pipeline and the second spray ammonia pipeline be used as to
Adjustment spray ammonia pipeline, generates third correction value, and the third ammonia of the first spray ammonia pipeline is determined based on the third correction value
4th ammonia flow of flow and the second spray ammonia pipeline, and using the third ammonia flow as the mesh of the first spray ammonia pipeline
Ammonia flow is marked, using the 4th ammonia flow as the target ammonia flow of the second spray ammonia pipeline.
3. the method as described in claim 1, which is characterized in that described to be based on first amount of nitrogen oxides, the second nitrogen oxygen
Compound content and third amount of nitrogen oxides determine spray ammonia pipeline to be adjusted and the spray to be adjusted in the coal unit
After the target ammonia flow of ammonia pipeline, the method also includes:
The 4th amount of nitrogen oxides of the first exhanst gas outlet, the 5th nitrogen oxides of the second exhanst gas outlet in coal unit is obtained to contain
Amount and current third amount of nitrogen oxides；
4th amount of nitrogen oxides is compared with the first default content value, by the pentoxide content and second
Default content value compares, and the current third amount of nitrogen oxides is preset content value with third and is compared；
When the 4th amount of nitrogen oxides is more than the first default content value, the 4th correction value is generated, is repaired based on the described 4th
Positive value is adjusted the current ammonia flow of the first spray ammonia pipeline；
When the 5th amount of nitrogen oxides is more than the second default content value, the 5th correction value is generated, is repaired based on the described 5th
Positive value is adjusted the current ammonia flow of the second spray ammonia pipeline；
When the current third amount of nitrogen oxides is more than that third presets content value, the 6th correction value is generated, based on described the
Six correction values are adjusted the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline.
4. method as claimed in claim 3, which is characterized in that described preset the 4th amount of nitrogen oxides with first contains
Magnitude compares, and the pentoxide content and the second default content value are compared, and by the current third nitrogen
After oxide content and the default content value of third compare, the method also includes:
When the 4th amount of nitrogen oxides is less than the first default content value, the 4th amount of nitrogen oxides does not surpass
When crossing the second default content value, the current third amount of nitrogen oxides be less than third preset content value when；
Determine corresponding with the 4th amount of nitrogen oxides the 4th speedup value and corresponding with the 5th amount of nitrogen oxides
The 5th speedup value；
When the 4th speedup value is more than default speedup value, the 7th correction value is generated, and based on the 7th correction value to institute
The current ammonia flow for stating the first ammonia pipeline is adjusted；
When the 5th speedup value is more than default speedup value, the 8th correction value is generated, and based on the 8th correction value to institute
The current ammonia flow for stating the second ammonia pipeline is adjusted.
5. the method as described in claim 1, which is characterized in that described to be based on first amount of nitrogen oxides, the second nitrogen oxygen
Compound content and third amount of nitrogen oxides determine spray ammonia pipeline to be adjusted and the spray to be adjusted in the coal unit
After the target ammonia flow of ammonia pipeline, the method also includes:
Obtain the 4th amount of nitrogen oxides of the first exhanst gas outlet and the 5th nitrogen oxides of the second exhanst gas outlet in coal unit
Content；
When the difference of the 4th amount of nitrogen oxides and the 5th amount of nitrogen oxides is more than preset threshold, to first spray
The current ammonia flow of pipeline and the second jet pipe pipeline is adjusted.
6. the method as described in claim 1, which is characterized in that described to be based on first amount of nitrogen oxides, the second nitrogen oxygen
Compound content and third amount of nitrogen oxides determine spray ammonia pipeline to be adjusted and the spray to be adjusted in the coal unit
After the target ammonia flow of ammonia pipeline, the method also includes:
The information on load of the coal unit is monitored；
When the information on load changes, the 9th correction value is generated based on default rule, and based on the 9th amendment
The current ammonia flow of value, the first spray ammonia pipeline and the second spray ammonia pipeline is adjusted.
7. the method as described in claim 1, which is characterized in that described to be based on first amount of nitrogen oxides, the second nitrogen oxygen
Compound content and third amount of nitrogen oxides determine spray ammonia pipeline to be adjusted and the spray to be adjusted in the coal unit
After the target ammonia flow of ammonia pipeline, the method also includes:
Obtain the work state information of the coal pulverizer of the coal unit；
When the work state information of the coal pulverizer meets preset condition, the tenth correction value is generated, and repair based on the described tenth
Positive value is adjusted the current ammonia flow of the first spray ammonia pipeline and the second spray ammonia pipeline.
8. a kind of control equipment of ammonia flow, which is characterized in that the equipment includes: memory, processor and is stored in institute
State the control program for the ammonia flow that can be run on memory and on the processor, the control program quilt of the ammonia flow
The step of control method of the ammonia flow as described in any one of claims 1 to 7 is realized when the processor executes.
9. a kind of storage medium, which is characterized in that be stored with the control program of ammonia flow, the ammonia on the storage medium
The controlling party of the ammonia flow as described in any one of claims 1 to 7 is realized when the control program of flow is executed by processor
The step of method.
10. a kind of control device of ammonia flow, which is characterized in that the control device of the ammonia flow includes:
Module is obtained, for obtaining the first amount of nitrogen oxides of the first smoke inlet in coal unit, is obtained in coal unit
Second amount of nitrogen oxides of the second smoke inlet, and obtain the third amount of nitrogen oxides of environmentally friendly discharge outlet in coal unit；
Module is adjusted, for being based on first amount of nitrogen oxides, the second amount of nitrogen oxides and third amount of nitrogen oxides
Determine the target ammonia flow of the spray ammonia pipeline to be adjusted and the spray ammonia pipeline to be adjusted in the coal unit.
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