CN208108145U - It is a kind of to guarantee flue gas ultra-clean exhaust system using boiler idle air - Google Patents
It is a kind of to guarantee flue gas ultra-clean exhaust system using boiler idle air Download PDFInfo
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- CN208108145U CN208108145U CN201820510411.9U CN201820510411U CN208108145U CN 208108145 U CN208108145 U CN 208108145U CN 201820510411 U CN201820510411 U CN 201820510411U CN 208108145 U CN208108145 U CN 208108145U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model guarantees flue gas ultra-clean exhaust system using boiler idle air more particularly to a kind of, it is made of idle air draw-out device, automatic idle air distributor, backward flowing preventing device, primary air fan, sulphur nitrogen pollutant on-Line Monitor Device, on-line metering device, oxygen amount device for monitoring and analyzing, coal-supplying amount regulation device, central data analysis process system, by the idle air for extracting 14% or so oxygen amount of boiler, reduction control is carried out to 21% or so boiler oxygen amount, boiler oxygen-enriched combusting is become into micro- oxygen debt burning, inhibits or reduce SO in combustion2、NOxGeneration, whole system carries out analytical integration by central data analysis process system, realize idle air, Combustion Operation of Boilers, oxygen amount, the fusion of the cloud platform of desulphurization denitration data, increasingly automated control, Air Pollutant Emission total amount is greatly reduced, it reduces environmental pollution, has effectively facilitated the low-carbon harmonious development of enterprise.
Description
Technical field
The utility model belongs to boiler idle air and utilizes distribution system, and in particular to a kind of to guarantee that flue gas is super using boiler idle air
Clean exhaust system.
Background technique
The main technique that coal-burning boiler desulfurization is taken is wet desulphurization, double alkali method desulfurizing, semi-dry desulphurization, at present using most
More and technology maturation sulfur removal technology is wet desulphurization, at home to be widely used.Such technique mainly consumes a large amount of desulfurization
Agent lime stone and water resource are reacted by lime stone slurry with the sulphur in flue gas, by SO2Be converted to calcium sulfate and sulfurous acid
Calcium, to reach flue gas desulfurization purification purpose.
The technique that denitration uses is mainly SCR selective catalytic reduction, SNCR non-selective catalytic reduction, pass through to
A large amount of denitrfying agent such as 20% ammonium hydroxide or ammonias are sprayed into boiler smoke, are reacted with the nitrogen in flue gas, and N is generated2And H2O reaches
The effect of denitrating flue gas.
The above sulfur removal technology need to consume a large amount of limestone resource and water resource, and the high chloride ion generated in sweetening process is dirty
Water, need to carry out handling it is up to standard after discharged.Denitrating technique need to largely use ammonium hydroxide, while consume a large amount of water resource.It is such
Desulfurizing and denitrifying process Installed capital cost and operation cost are higher, take up a large area, energy consumption is high, the construction period is long and consumes big
Non-renewable resources are measured, the sustainable development of national society is influenced.Coal-burning boiler SO2、NOxThe generation of equal pollutants is mainly being sent out
The raw combustion process in boiler, how in boiler combustion process, to SO2、NOxThe initial concentration of generation control effectively, from
The generation for inhibiting atmosphere pollution on source, reduces subsequent desulphurization and denitration technique to SO2、NOxTreating capacity, to reach lime stone
Resource and the mesh that water resources consumption reduces, residual product contamination is reduced, Construction and operation cost reduces, gross contamination emission reduces
Mark is important topic of the pendulum in face of each enterprise.
Utility model content
The shortcomings that the purpose of this utility model is directed in the prior art and deficiency provide a kind of utilization boiler idle air guarantee cigarette
Gas ultra-clean exhaust system, the utility model is in boiler combustion process to SO2、NOxThe initial concentration of generation control effectively
Technology and equipment, atmosphere pollution generate source carry out emission reduction, limitation.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
It is a kind of to guarantee flue gas ultra-clean exhaust system, including the distribution of idle air draw-out device, automatic idle air using boiler idle air
The air inlet of device and primary air fan, the idle air draw-out device is connected to flue tail, extracting high-temperature idle air, and idle air extracts dress
The air outlet set is connected to by conveyance conduit with the air inlet of automatic idle air distributor, each outlet air of automatic idle air distributor
Mouth is connected to by conveyance conduit with the air inlet of each primary air fan, and the air outlet of each primary air fan is pre- by conveyance conduit and air
The air inlet of hot device is connected to, and the air outlet of air preheater is connected to each boiler furnace.
It is described to guarantee that flue gas ultra-clean exhaust system further includes backward flowing preventing device using boiler idle air, the backward flowing preventing device
It is located in the connecting pipe of automatic idle air distributor and each primary air fan.
It is described to guarantee that flue gas ultra-clean exhaust system further includes on-line metering device, oxygen amount monitoring analysis using boiler idle air
Device, coal amount regulation device, sulphur nitrogen pollutant on-Line Monitor Device and central data analysis process system, the on-line metering dress
It is set in the connecting pipe of automatic idle air distributor and each primary air fan, for monitoring and controlling each boiler furnace of input
Idle air inlet, oxygen amount device for monitoring and analyzing are located on boiler furnace, for monitoring oxygen amount in boiler furnace, coal amount regulation device
It is located on the coal feeding pipe line of each boiler, for adjusting and monitoring the coal input quantity into each boiler furnace, the sulphur nitrogen pollutant exists
Line monitoring device is located on the smoke discharging pipe of boiler, online to count for monitoring the concentration of boiler discharge sulfureous in flue gas nitrogen pollutant
Device, oxygen amount device for monitoring and analyzing, coal amount regulation device and sulphur nitrogen pollutant on-Line Monitor Device is measured to divide with central data respectively
Processing system connection is analysed, central data analysis process system is for acquiring, analyzing and controlling on-line metering device, oxygen amount monitoring point
Analysis apparatus, coal amount regulation device and sulphur nitrogen pollutant on-Line Monitor Device.
The utility model reduces SO using boiler idle air2、NOxInitial concentration guarantees the main skill of flue gas ultra-clean exhaust system
Art route is control SO2、NOxThe physical-chemical parameters and condition are generated, it is right by extracting the idle air of 14% or so oxygen amount of boiler
21% or so boiler oxygen amount carries out reduction control, and boiler oxygen-enriched combusting is become micro- oxygen debt burning, in combustion inhibit or
Reduce SO2、NOxGeneration, system composition includes：Boiler cleaning high temperature idle air draw-out device, conveyance conduit, automatic idle air point
With device, backward flowing preventing device, primary air fan, sulphur nitrogen pollutant on-Line Monitor Device, on-line metering device, oxygen amount monitoring analysis dress
It sets, the composition such as coal-supplying amount regulation device, central data analysis process system.
Wherein boiler cleaning high temperature idle air draw-out device, conveyance conduit, on-line metering device, automatic idle air distributor,
Backward flowing preventing device is all made of the manufacture of heat resistant and wear resistant material, guarantees that the cycle of operation reduces repair and maintenance workload.
The automatic idle air distributor, may be implemented on-line automatic adjustment, the idle air control adjusted into boiler combustion
Precision is greatly improved, and is not required to manual operation, ensure that the stability of system operation, reduces operating cost.
The sulphur nitrogen pollutant on-Line Monitor Device, on-line metering device, oxygen amount device for monitoring and analyzing, coal-supplying amount regulation dress
Set, desulphurization denitration linkage control system etc. by central data analysis process system carries out analytical integration, realize idle air, boiler combustion
Burn operating condition, oxygen amount, the fusion of the cloud platform of desulphurization denitration data, increasingly automated control.
Tthe utility model system is adjusted Combustion Operation of Boilers using boiler idle air, accurate control boiler oxygen amount, right
SO2、NOxThe formation condition of initial concentration control effectively or inhibits, the sulphur nitrogen pollutant on-Line Monitor Device, online meter
Device, oxygen amount device for monitoring and analyzing, coal-supplying amount regulation device, desulphurization denitration linkage control system etc. is measured to analyze by central data
Processing system carries out analytical integration, realizes idle air, Combustion Operation of Boilers, oxygen amount, the fusion of the cloud platform of desulphurization denitration data, height
Automation control.
In conclusion the beneficial effects of the utility model are：
1) by adjusting Combustion Operation of Boilers using idle air, reduce or inhibit the production quantity of flue gas pollutant；
2) boiler changes into micro- oxygen debt burning, SO by original oxygen-enriched combusting2, NOx initial concentration reduce about 20%- on year-on-year basis
35%, reduce the consumption of desulfurization denitrification agent and water resource, reduces enterprise's desulphurization denitration operation cost；
3) Air Pollutant Emission total amount is greatly reduced, and reduces environmental pollution, and has effectively facilitated the low-carbon harmony hair of enterprise
Exhibition.
Detailed description of the invention
Fig. 1 is the flow chart schematic diagram of the utility model；
Fig. 2 is the schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, one of the present embodiment guarantees flue gas ultra-clean exhaust system, including idle air using boiler idle air
Draw-out device 1,5, two on-line metering devices 4 of the backward flowing preventing device of primary air fan 2, two of automatic idle air distributor 3, two,
Two oxygen amount device for monitoring and analyzing, 6, two coal amount regulation devices 7, sulphur nitrogen pollutant on-Line Monitor Device 8 and central data analysis
The air inlet of processing system 9, the idle air draw-out device 1 is connected to flue tail, extracting high-temperature idle air, idle air draw-out device 1
Air outlet be connected to the air inlet of automatic idle air distributor 3 by conveyance conduit, two of automatic idle air distributor 3 are out
Air port is connected to the air inlet of two primary air fans 2 respectively by conveyance conduit, and the air outlet of two primary air fans 2 passes through conveying
Pipeline is connected to the air inlet of two air preheaters 10, the air outlet of two air preheaters 10 respectively with two boiler furnaces
11 connections；Described two backward flowing preventing devices 5 are respectively provided at the connecting pipe of automatic idle air distributor 3 and two primary air fans 2
On；Described two on-line metering devices 4 are located in the connecting pipe of automatic idle air distributor 3 and two primary air fans 2, are used for
Monitoring and control input the idle air inlet of each boiler furnace 11, and two oxygen amount device for monitoring and analyzing 6 are respectively provided at two boilers
On burner hearth, for monitoring oxygen amount in boiler furnace, two coal amount regulation devices 7 are respectively provided on the coal feeding pipe line of two boilers,
For adjusting and monitoring the coal input quantity into each boiler furnace 11, the sulphur nitrogen pollutant on-Line Monitor Device 8 is located at boiler
On smoke discharging pipe, for monitoring the concentration of boiler discharge sulfureous in flue gas nitrogen pollutant, two on-line metering devices, 4, two oxygen amount
6, two coal amount regulation devices 7 of device for monitoring and analyzing and sulphur nitrogen pollutant on-Line Monitor Device 8 are respectively and at central data analysis
Reason system 9 connects, and central data analysis process system 9 is for acquiring, analyzing and two control on-line metering devices, 4, two oxygen
Measure 6, two coal amount regulation devices 7 of device for monitoring and analyzing and sulphur nitrogen pollutant on-Line Monitor Device 8.
As shown in Fig. 2, the lower idle air of oxygen amount is drawn into conveyance conduit by idle air draw-out device 1 in flue tail
In, idle air draw-out device 1 and conveyance conduit are manufactured using high temperature resistant, wear-resistant material, idle air enter automatic idle air distributor 3 into
Row distribution, idle air sucks boiler primary air fan 2 by conveyance conduit later, enters after being heated by boiler air preheater 10
Boiler carries out air distribution combustion；Online metering device 4 is installed between automatic idle air distributor 3 and primary air fan 2 as automatic
Measurement, the data foundation for distributing idle air；On-line metering device 4, oxygen amount monitoring are analyzed by central data analysis process system 9
Device 6, coal-supplying amount regulation device 7, sulphur nitrogen pollutant on-Line Monitor Device 8 carry out chain adjust automatically control.
Claims (3)
1. a kind of guarantee flue gas ultra-clean exhaust system using boiler idle air, it is characterised in that：Including idle air draw-out device (1),
Automatic idle air distributor (3) and primary air fan (2), the air inlet of the idle air draw-out device (1) are connected to flue tail, are taken out
High temperature idle air is taken, the air outlet of idle air draw-out device (1) is connected by conveyance conduit and the air inlet of automatic idle air distributor (3)
Logical, each air outlet of automatic idle air distributor (3) is connected to by conveyance conduit with the air inlet of each primary air fan (2), and each one
The air outlet of secondary blower (2) is connected to by conveyance conduit with the air inlet of air preheater (10), and air preheater (10) goes out
Air port is connected to each boiler furnace (11).
2. a kind of utilization boiler idle air according to claim 1 guarantees flue gas ultra-clean exhaust system, it is characterised in that：Institute
It states and guarantees that flue gas ultra-clean exhaust system further includes backward flowing preventing device (5) using boiler idle air, the backward flowing preventing device (5) is located at
In the connecting pipe of automatic idle air distributor (3) and each primary air fan (2).
3. according to claim 1 or 2 a kind of using boiler idle air guarantee flue gas ultra-clean exhaust system, feature exists
In：It is described to guarantee that flue gas ultra-clean exhaust system further includes on-line metering device (4), oxygen amount monitoring analysis dress using boiler idle air
(6), coal amount regulation device (7), sulphur nitrogen pollutant on-Line Monitor Device (8) and central data analysis process system (9) are set, it is described
On-line metering device (4) is located in the connecting pipe of automatic idle air distributor (3) and each primary air fan (2), for monitoring and
Control inputs the idle air inlet of each boiler furnace (11), and oxygen amount device for monitoring and analyzing (6) is located on boiler furnace, for monitoring
Oxygen amount in boiler furnace, coal amount regulation device (7) are located on the coal feeding pipe line of each boiler, for adjusting and monitoring into each boiler
The coal input quantity of burner hearth (11), the sulphur nitrogen pollutant on-Line Monitor Device (8) is located on the smoke discharging pipe of boiler, for monitoring pot
Fire grate goes out the concentration of sulfureous in flue gas nitrogen pollutant, on-line metering device (4), oxygen amount device for monitoring and analyzing (6), coal amount regulation device
(7) it is connect respectively with central data analysis process system (9) with sulphur nitrogen pollutant on-Line Monitor Device (8), central data analysis
Processing system (9) is for acquiring, analyzing and controlling on-line metering device (4), oxygen amount device for monitoring and analyzing (6), coal amount regulation dress
Set (7) and sulphur nitrogen pollutant on-Line Monitor Device (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820510411.9U CN208108145U (en) | 2018-04-11 | 2018-04-11 | It is a kind of to guarantee flue gas ultra-clean exhaust system using boiler idle air |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820510411.9U CN208108145U (en) | 2018-04-11 | 2018-04-11 | It is a kind of to guarantee flue gas ultra-clean exhaust system using boiler idle air |
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| Publication Number | Publication Date |
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| CN208108145U true CN208108145U (en) | 2018-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506953A (en) * | 2018-04-11 | 2018-09-07 | 山西沁新能源集团股份有限公司 | It is a kind of to ensure flue gas ultra-clean exhaust system using boiler idle air |
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2018
- 2018-04-11 CN CN201820510411.9U patent/CN208108145U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506953A (en) * | 2018-04-11 | 2018-09-07 | 山西沁新能源集团股份有限公司 | It is a kind of to ensure flue gas ultra-clean exhaust system using boiler idle air |
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