CN107899405A - Denitrification reducing agent energy saving and efficiency increasing system - Google Patents
Denitrification reducing agent energy saving and efficiency increasing system Download PDFInfo
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- CN107899405A CN107899405A CN201711260371.3A CN201711260371A CN107899405A CN 107899405 A CN107899405 A CN 107899405A CN 201711260371 A CN201711260371 A CN 201711260371A CN 107899405 A CN107899405 A CN 107899405A
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- Prior art keywords
- reducing agent
- heat exchange
- boiler
- energy saving
- exchange pipeline
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 98
- 238000003860 storage Methods 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 12
- 239000012716 precipitator Substances 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 239000000779 smoke Substances 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 5
- 238000005243 fluidization Methods 0.000 claims description 5
- 239000004071 soot Substances 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 238000010926 purge Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003517 fume Substances 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 24
- 229910021529 ammonia Inorganic materials 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 7
- 239000004202 carbamide Substances 0.000 description 7
- 238000000197 pyrolysis Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 3
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 3
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 3
- 239000001099 ammonium carbonate Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009422 external insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
- F23L15/045—Arrangements of recuperators using intermediate heat-transfer fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
-
- 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
-
- 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
- B01D2251/2067—Urea
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of denitrification reducing agent energy saving and efficiency increasing system, including boiler and reducing agent storage tank, low-level (stack-gas) economizer and air preheater are equipped with the boiler successively, the boiler is connected with smoke pipe, the flue is equipped with electric precipitator, the reducing agent storage tank is connected with heat exchange pipeline, the heat exchange pipeline enters air preheater and by arriving at the reaction zone in boiler after low-level (stack-gas) economizer at the preceding flue of electric precipitator all along flue, and the present invention provides a kind of denitrification reducing agent energy saving and efficiency increasing system for fully making reducing agent fully be pyrolyzed beneficial to fume afterheat.
Description
Technical field
The present invention relates to denitrating flue gas field, is more particularly to denitrification reducing agent energy saving and efficiency increasing system.
Background technology
Boiler exhaust gas discharge will be controlled according to the standard of minimum discharge according to environmental requirement, all boilers at present.At present
The catalyst used has liquefied ammonia, urea, ammonium hydrogen carbonate, cyanuric acid etc., at present technology due to these reducing agents enter boiler into
High energy consumption when temperature during row denitration is than relatively low or cracking, influence of the reducing agent to boiler is bigger, is needed when being dissolved such as urea
The energy consumptions such as steam heating, need to consume substantial amounts of electric energy when using electrical heating or steam heat resolve outside stove such as urea as ammonia
Or vapor.The benefit of power plant has great loss, and power cut-off occurs or when vapor is died, cause denitration cannot be just
Often carry out.The invention avoids these to heat energy consumption, improves boiler efficiency.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides it is a kind of be fully beneficial to fume afterheat make reducing agent be fully pyrolyzed and
Improve the energy saving and efficiency increasing system of denitrification reducing agent charging temperature.
To achieve the above object, the present invention provides following technical solution：A kind of denitrification reducing agent energy saving and efficiency increasing system, bag
Boiler and reducing agent storage tank are included, is equipped with low-level (stack-gas) economizer and air preheater successively in the boiler, the boiler is connected with cigarette
Pipe, the flue are equipped with electric precipitator, and the reducing agent storage tank is connected with heat exchange pipeline, and the heat exchange pipeline is from electric precipitator
Preceding flue at all along flue enter air preheater and by low-level (stack-gas) economizer after, into reducing agent separation vessel, point
The solution or air and reducing agent storage tank, heat exchange pipeline separated out exchanges heat, and reuses to convey denitrification reducing agent, separation
Reducing agent enters reducing agent storage container afterwards, and undecomposed high temperature reduction agent and the ammonia after decomposing etc. pass through spray gun or ammonia cake
Denitration reaction is carried out Deng into the reaction zone in boiler.
The further heat exchange pipeline is coiled on the outer wall of flue and boiler and is bonded with the outer wall of flue.
The further heat exchange pipeline is externally provided with external insulation system.
The further heat exchange pipeline is located in flue and in boiler.
The further reducing agent storage tank is equipped with solution delivery system in parallel and powdery fluidisation transport system.
The soot blower system for being used for clearing up heat exchange pipeline outer wall is equipped with the further flue and boiler.
If the further heat exchange pipeline is equipped with dry temperature sensor.
Further further include heat exchanger and reducing agent separator, the denitrification reducing agent after being heated by heat exchanger,
Into reducing agent separator, the reducing agent or the product of reducing agent separated by reducing agent separator enter reduction all the way
The storage of agent storage tank, the SNCR being directly entered all the way after the flue gas heat exchange of boiler in boiler, SCR region domain carry out denitration, from also
The liquid and gas for the conveying reducing agent that former agent separator is separated enter after exchanging heat with the reducing agent in transport system
The reducing agent of reducing agent tank is heated reducing agent holding vessel and dissolving.
One end that the further heat exchange pipeline enters in boiler is equipped with metering distribution system.
Heat exchanger is equipped with the further reducing agent knockout drum.
High temperature reduction agent holding vessel is equipped with after the further reducing agent knockout drum.
The reducing agent pumped (conveying) medium after reducing agent knockout drum return to reducing agent holding vessel into
Enter the reducing agent in reducing agent holding vessel or in reducing agent conveyance conduit to be heated.
It is further to further include DCS system, the signal of valve and measurement in the denitrification reducing agent energy saving and efficiency increasing system
It is all connected with DCS system.
In conclusion the present invention utilizes the waste heat of flue gas in flue, reducing agent is inversely gradually heated up from low temperature to high temperature, from
And reducing agent is pyrolyzed into ammonia completely or bring up to the optimum temperature before stove decomposes, it ensure that the decomposition of denitrification reducing agent
Efficient, having saved when the electrical heating of current denitrating system needs or steam heat resolve are ammonia needs to consume substantial amounts of electric energy
Or vapor etc., boiler for producing efficiency is improved, and device structure is simple, plant maintenance is convenient.
Brief description of the drawings
Fig. 1 is the structure chart of denitrification reducing agent energy saving and efficiency increasing system of the present invention.
Mark explanation：1st, reducing agent storage tank；2nd, heat exchange pipeline；3rd, electric precipitator；4th, air preheater；5th, low temperature saves coal
Device；6th, distribution system is measured；7th, boiler；8th, flue；9th, temperature sensor.
Embodiment
The embodiment of denitrification reducing agent energy saving and efficiency increasing system of the present invention is described further with reference to Fig. 1.
A kind of denitrification reducing agent energy saving and efficiency increasing system, including boiler 7 and reducing agent storage tank 1, are equipped with the boiler 7 successively
Low-level (stack-gas) economizer 5 and air preheater 4, the boiler 7 are connected with smoke pipe, and the flue 8 is equipped with electric precipitator 3, described to go back
Former agent storage tank 1 is connected with heat exchange pipeline 2, and the heat exchange pipeline 2 enters at the preceding flue 8 of electric precipitator 3 all along flue 8
Air preheater 4 simultaneously passes through the reaction zone after low-level (stack-gas) economizer 5 in arrival boiler 7.
Reducing agent is added in reducing agent storage tank 1, reducing agent is introduced into the front and rear cigarette of electric precipitator 3 by heat exchange pipeline 2
In road 8, by tentatively being preheated in flue 8, using the flue gas in flue 8 to and the close temperature of flue-gas temperature, it is preliminary plus
Reducing agent after heat enters air preheater 4 along the flue 8 of boiler 7, is further added by the heat exchanger in air preheater 4
Heat, so that the reducing agent in heat exchange pipeline 2 gradually heats up, when temperature reaches the pyrolysis temperature of reducing agent, reducing agent pyrolysis
Ammonia is produced, if urea, ammonium hydrogen carbonate then decompose completion substantially at this moment, finally by being supported after low-level (stack-gas) economizer 5
Up to the reaction zone injection in boiler 7, so using the waste heat of flue gas in flue 8, inversely it is gradually heated up reducing from low temperature to high temperature
Agent, so that reducing agent can be pyrolyzed into ammonia completely, pyrolysis is efficient, when to have saved electrical heating or steam heat resolve be ammonia
Need to consume substantial amounts of electric energy or vapor, improve production efficiency, and device structure is simple, plant maintenance is convenient.
Embodiment 1：The heat exchange pipeline 2 is coiled on the outer wall of flue 8 and is bonded with the outer wall of flue 8, can be abundant
With the flue gas heat exchange in flue 8.
Preferably the heat exchange pipeline 2 is externally provided with external insulation system to the present embodiment, avoids heat exchange pipeline 2 and outside air
Heat exchange cooling.
Embodiment 2：The heat exchange pipeline 2 is located in flue 8, and heat exchange pipeline 2 is in coil pipe in flue 8 in the present embodiment
Shape, for lengthening the heat exchange stroke of heat exchange pipeline 2, so as to sufficiently exchange heat with flue gas.
Embodiment 3：Certain heat exchange pipeline 2 can also be at the same time in flue 8 and outside flue 8, and principle is with embodiment 1 and implements
Example 2.
The currently preferred reducing agent storage tank 1 is equipped with solution delivery system in parallel and powdery fluidisation transport system, according to
The requirement of reducing agent is different, and the reducing agent in reducing agent storage tank 1 enters transport system or direct after being dissolved respectively using water
Transport system is fluidized into powdery, suitable for different reducing agents.
The soot blower system for being used for clearing up 2 outer wall of heat exchange pipeline is equipped with the currently preferred boiler 7, in the present embodiment
Soot blower system can be soot blower system that boiler 7 carries, so ensure the not dust stratification dirt of heat exchange pipeline 2, ensure heat exchange efficiency.
If the currently preferred heat exchange pipeline 2 is equipped with dry temperature sensor 9, for monitoring heat exchange pipeline in real time
The temperature of reducing agent in 2, so as to preferably control the input quantity and flow of reducing agent.
The reducing agent separator of the present invention is after cracking or uncracked reducing agent enters reducing agent holding vessel, if ammonia is from mixing
Separated in compound and occur to be replenished in time when nitre content increases suddenly into ammonia holding vessel, guarantee；From reducing agent point
The material (water or air etc.) of the conveying denitrfying agent come out from device first and into the reduction agent composition of reducing agent separator carries out
Heat exchange, is back to denitrfying agent holding vessel and denitrfying agent is heated after heat exchange, improve heating efficiency.Avoid the occurrence of current each
Kind denitrification reducing agent enters stokehold energy consumption, as a large amount of electric energy or fuel oil or steam of urea pyrolysis stove consume energy;It it also avoid urea
The steam to aqueous solution of urea for hydrolyzing stove heats energy consumption;Equally to the energy consumption of the pyrolysis such as ammonium hydrogen carbonate;Melamine is improved to enter
Furnace temperature, increase reaction time improve denitration efficiency etc..The present invention except pump, wind turbine, compressor energy consumption, there is no other steamings
The auxiliary such as vapour heat energy consumption.
One end that the currently preferred heat exchange pipeline 2 enters in boiler 7 is equipped with metering distribution system 6, passes through metering
Distribution system 6, which can be more actually needed, rationally controls the amount of ammonia and denitrification reducing agent penetrating reaction zone.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of denitrification reducing agent energy saving and efficiency increasing system, it is characterized in that：Including boiler and reducing agent storage tank, in the boiler successively
Equipped with low-level (stack-gas) economizer and air preheater, the boiler is connected with smoke pipe, and the flue is equipped with electric precipitator, the reduction
Agent storage tank is connected with heat exchange pipeline, and the heat exchange pipeline enters air preheat at the preceding flue of electric precipitator all along flue
Device and by low-level (stack-gas) economizer, then arrives at the reaction zone in boiler.
2. denitrification reducing agent energy saving and efficiency increasing system according to claim 1, it is characterized in that：The heat exchange pipeline is coiled in cigarette
It is bonded on the outer wall of road and boiler and with the outer wall of flue.
3. denitrification reducing agent energy saving and efficiency increasing system according to claim 2, it is characterized in that：The heat exchange pipeline is externally provided with outer
Portion's heat-insulation system.
4. denitrification reducing agent energy saving and efficiency increasing system according to claim 1, it is characterized in that：The heat exchange pipeline is located at flue
Interior, the heat exchange pipeline of the inside of the flue is equipped with bypass, the valve that control flows to and is flowed through according to denitrfying agent temperature control
The valve control system of flow in heat exchange pipeline.
5. denitrification reducing agent energy saving and efficiency increasing system according to claim 1, it is characterized in that：The reducing agent storage tank is equipped with simultaneously
Solution delivery system and powdery the fluidisation transport system of connection, solution delivery system and powdery fluidisation the transport system conveying take off
Nitre reducing agent is exchanged heat by heat exchange pipeline, and the pipeline of solution delivery system and powdery the fluidisation transport system is provided with pipe
Road purges cleaning equipment.
6. denitrification reducing agent energy saving and efficiency increasing system according to claim 1, it is characterized in that：It is equipped with and is used for clearly in the boiler
Manage the soot blower system of heat exchange pipeline outer wall.
7. denitrification reducing agent energy saving and efficiency increasing system according to claim 1, it is characterized in that：If the heat exchange pipeline is equipped with
Dry temperature sensor.
8. denitrification reducing agent energy saving and efficiency increasing system according to claim 5, it is characterized in that：Further include heat exchanger and reducing agent
Separator, the denitrification reducing agent, into reducing agent separator, separate after being heated by heat exchanger by reducing agent separator
Reducing agent or the product of reducing agent out enters reducing agent storage tank and stores all the way, straight after the flue gas heat exchange of boiler all the way
Tap into SNCR in boiler, SCR region domain carries out denitration, the liquid for the conveying reducing agent separated from reducing agent separator and
Gas by with enter reducing agent holding vessel after the reducing agent heat exchange in transport system to the reducing agent of reducing agent tank heating and molten
Solution.
9. denitrification reducing agent energy saving and efficiency increasing system according to claim 1, it is characterized in that：The heat exchange pipeline enters boiler
Interior one end is equipped with metering distribution system.
10. the denitrification reducing agent energy saving and efficiency increasing system according to claim 1 to 9 any one, it is characterized in that：Further include
DCS system, the signal of valve and measurement in the denitrification reducing agent energy saving and efficiency increasing system are all connected with DCS system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711260371.3A CN107899405A (en) | 2017-12-04 | 2017-12-04 | Denitrification reducing agent energy saving and efficiency increasing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711260371.3A CN107899405A (en) | 2017-12-04 | 2017-12-04 | Denitrification reducing agent energy saving and efficiency increasing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107899405A true CN107899405A (en) | 2018-04-13 |
Family
ID=61854540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711260371.3A Pending CN107899405A (en) | 2017-12-04 | 2017-12-04 | Denitrification reducing agent energy saving and efficiency increasing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107899405A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109876626A (en) * | 2019-02-28 | 2019-06-14 | 华电电力科学研究院有限公司 | A kind of three-stage urea pyrolysis ammonia denitrating system and its working method |
| CN113266839A (en) * | 2021-06-02 | 2021-08-17 | 秦皇岛新特科技有限公司 | Denitration treatment method for sintering flue gas |
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|---|---|---|---|---|
| US20070231232A1 (en) * | 2000-12-01 | 2007-10-04 | Fuel Tech, Inc. | SELECTIVE CATALYTIC REDUCTION OF NOx ENABLED BY UREA DECOMPOSITION IN HEAT-EXCHANGER BYPASS |
| CN102861505A (en) * | 2012-09-29 | 2013-01-09 | 贾博麟 | Efficient and energy-saving denitration system |
| CN107261837A (en) * | 2017-07-27 | 2017-10-20 | 中节环立为（武汉）能源技术有限公司 | It is a kind of to quote denitrification apparatus and technique that high-temperature flue gas carries out urea pyrolysis ammonia |
| CN107297145A (en) * | 2016-04-14 | 2017-10-27 | 昆山市三维换热器有限公司 | SCR boiler flue gas denitration systems |
| CN207822789U (en) * | 2017-12-04 | 2018-09-07 | 贾博麟 | Denitrification reducing agent energy saving and efficiency increasing system |
-
2017
- 2017-12-04 CN CN201711260371.3A patent/CN107899405A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070231232A1 (en) * | 2000-12-01 | 2007-10-04 | Fuel Tech, Inc. | SELECTIVE CATALYTIC REDUCTION OF NOx ENABLED BY UREA DECOMPOSITION IN HEAT-EXCHANGER BYPASS |
| CN102861505A (en) * | 2012-09-29 | 2013-01-09 | 贾博麟 | Efficient and energy-saving denitration system |
| CN107297145A (en) * | 2016-04-14 | 2017-10-27 | 昆山市三维换热器有限公司 | SCR boiler flue gas denitration systems |
| CN107261837A (en) * | 2017-07-27 | 2017-10-20 | 中节环立为（武汉）能源技术有限公司 | It is a kind of to quote denitrification apparatus and technique that high-temperature flue gas carries out urea pyrolysis ammonia |
| CN207822789U (en) * | 2017-12-04 | 2018-09-07 | 贾博麟 | Denitrification reducing agent energy saving and efficiency increasing system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109876626A (en) * | 2019-02-28 | 2019-06-14 | 华电电力科学研究院有限公司 | A kind of three-stage urea pyrolysis ammonia denitrating system and its working method |
| CN113266839A (en) * | 2021-06-02 | 2021-08-17 | 秦皇岛新特科技有限公司 | Denitration treatment method for sintering flue gas |
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