CN212974688U - Low temperature SOx/NOx control integration equipment - Google Patents
Low temperature SOx/NOx control integration equipment Download PDFInfo
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- CN212974688U CN212974688U CN202021176844.9U CN202021176844U CN212974688U CN 212974688 U CN212974688 U CN 212974688U CN 202021176844 U CN202021176844 U CN 202021176844U CN 212974688 U CN212974688 U CN 212974688U
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- denitrification
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a low temperature SOx/NOx control integration equipment, including economizer, desulfurizing tower and denitration tower economizer one end intercommunication has the high temperature to advance the tobacco pipe and says, and the high temperature advances the tobacco pipe and say that other end intercommunication has the dust removal case to the tobacco pipe is advanced to the medium temperature of dust removal case other end intercommunication, the medium temperature advances the tobacco pipe and says the bottom of intercommunication desulfurizing tower, and desulfurizing tower top intercommunication has the low temperature to advance the tobacco pipe and say to the low temperature advances the tobacco pipe and say other end intercommunication denitration tower. Has the advantages that: the utility model discloses be provided with ceramic heat exchange tube, temperature sensor and solenoid valve to make the flue gas that gets into in the denitration tower reach the highest suitable temperature of denitration catalyst activity, improved the efficiency and the denitration effect of equipment denitration, and handle the flue gas through establishing the desulfurizing tower before the denitration tower, avoid catalyst degeneration to be poisoned, and can carry out self-cleaning to the denitration catalyst, further improve the life of catalyst, and further improved the SOx/NOx control's of equipment whole effect and work efficiency.
Description
Technical Field
The utility model relates to a SOx/NOx control technical field particularly, relates to a low temperature SOx/NOx control integration equipment.
Background
The three environmental problems facing the world at present comprise greenhouse effect, acid precipitation and ozone layer destruction, wherein the last two environmental problems are related to sulfide and nitric acid type compound gas, the main pollution sources of the atmosphere in China also mostly come from sulfide and nitric oxide discharged by industry at present, so the core for treating the atmospheric pollution is to control the discharge amount of sulfur dioxide and nitric oxide of industrial enterprises, namely desulfurization and denitrification.
At present, the most widely and effectively applied flue gas denitration technology is a low-temperature SCR denitration method, and under the action of a catalyst, a reducing agent, such as ammonia gas, reacts with nitrogen oxides in flue gas to generate harmless nitrogen gas and water, so that the nitrogen oxides in the flue gas are removed.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a low temperature SOx/NOx control integration equipment possesses the most suitable temperature of regulation catalyst and prevents that the catalyst is poisoned, the efficient advantage of SOx/NOx control, and then solves the problem among the above-mentioned background art.
(II) technical scheme
For realizing above-mentioned most suitable temperature of regulation catalyst and prevention catalyst poisoning, the efficient advantage of SOx/NOx control, the utility model discloses a concrete technical scheme as follows: the utility model provides a low temperature SOx/NOx control integration equipment, includes the economizer, desulfurizing tower and denitration tower economizer one end intercommunication has the high temperature to advance the tobacco pipe and says, and the high temperature advances the other end intercommunication of tobacco pipe and have the dust removal case to the tobacco pipe is advanced to the dust removal case other end intercommunication medium temperature, the medium temperature advances the tobacco pipe and says intercommunication desulfurizing tower bottom, and desulfurizing tower top intercommunication has the low temperature to advance the tobacco pipe and say to the low temperature advances the tobacco pipe and say other end intercommunication denitration tower.
Furthermore, install the solenoid valve on the high temperature advances the tobacco pipe way branch pipe, and the high temperature advances the ceramic heat exchange tube that the tobacco pipe way other end intercommunication has cup jointed on low temperature advances the tobacco pipe way, ceramic heat exchange tube is close to denitration tower one side and is equipped with the temperature sensor who installs in low temperature advances the tobacco pipe way, and temperature sensor electric connection solenoid valve.
Further, the bottom of the desulfurization tower is provided with an aerator, the upper part of the aerator is communicated with a gas distribution pipeline penetrating through the bottom of the desulfurization tower, and an aeration head is arranged above the gas distribution pipeline.
Further, the desulfurizing tower side intercommunication has the riser, and installs the water pump on the riser to the riser other end runs through the even liquid board of desulfurizing tower top intercommunication, a plurality of atomizing nozzle is installed to even liquid board below, and installs the desulfurization packing layer at the desulfurizing tower inner chamber below the atomizing nozzle.
Further, an ammonia sprayer is installed at the top of the inner cavity of the denitration tower, a denitration packing layer installed in the inner cavity of the denitration tower is arranged below the ammonia sprayer, and a plurality of denitration catalyst layers are arranged below the denitration packing layer.
Furthermore, a steam pipe is communicated with the lower portion of the side wall of the denitration tower, the other end of the steam pipe is communicated with a condenser installed on the side wall of the denitration tower, the condenser is communicated with a return pipe penetrating through the side wall of the denitration tower, and a denitration catalyst layer is arranged below the return pipe.
Furthermore, the bottom of the denitration tower is communicated with a smoke outlet pipeline.
(III) advantageous effects
Compared with the prior art, the utility model provides a low temperature SOx/NOx control integration equipment possesses following beneficial effect:
(1) the utility model discloses be provided with the ceramic heat exchange tube that the intercommunication high temperature advances the tobacco pipe way and can heat the desulfurization flue gas before getting into the denitration tower to advance the tobacco pipe at the desulfurization tower low temperature and say that import department is provided with temperature sensor, the temperature control high temperature of the flue gas that gets into through the response advances opening and close of the solenoid valve on the tobacco pipe way, thereby the flue gas that makes to get into in the denitration tower reaches the highest suitable temperature of denitration catalyst activity, has improved the efficiency and the denitration effect of equipment denitration.
(2) The utility model discloses an establish the desulfurizing tower and handle the flue gas before the denitration tower, the best active temperature of catalyst not only is convenient for control, also can get rid of the high concentration sulfur dioxide gas and the dust that contain in the flue gas, avoid catalyst degeneration poisoning, the life of catalyst has been prolonged, simultaneously through the steam condensation wiper mechanism who sets up, can carry out self-cleaning to the denitration catalyst, the life and the result of use of catalyst have further been improved, and the whole effect and the work efficiency of the SOx/NOx control of equipment have been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a low-temperature desulfurization and denitrification integrated device according to an embodiment of the present invention;
FIG. 2 is an enlarged view of the position A of the low-temperature desulfurization and denitrification integrated equipment according to the embodiment of the utility model;
fig. 3 is an enlarged view of a position B of the low-temperature desulfurization and denitrification integrated equipment according to the embodiment of the utility model.
In the figure:
1. a high temperature smoke inlet pipeline; 2. a coal economizer; 3. a medium-temperature smoke inlet pipeline; 4. a desulfurizing tower; 5. a water pump; 6. a desulfurization packing layer; 7. an atomizing nozzle; 8. a riser tube; 9. a liquid homogenizing plate; 10. a low temperature smoke inlet pipeline; 11. a dust removal box; 12. a ceramic heat exchange tube; 13. a temperature sensor; 14. an ammonia sprayer; 15. a denitration tower; 16. a denitration packing layer; 17. a denitration catalyst layer; 18. a smoke outlet pipeline; 19. an electromagnetic valve; 20. an aerator; 21. a gas distribution pipeline; 22. an aeration head; 23. a steam pipe; 24. a condenser; 25. a return pipe.
Detailed Description
For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.
According to the utility model discloses an embodiment provides a low temperature SOx/NOx control integration equipment.
Referring now to the drawings and the detailed description, as shown in fig. 1-3, a low temperature desulfurization and denitration integrated device according to an embodiment of the present invention includes an economizer 2, a desulfurization tower 4 and a denitration tower 15, one end of the economizer 2 is connected to a high temperature flue gas inlet pipe 1, the other end of the high temperature flue gas inlet pipe 1 is connected to a dust removal box 11, the other end of the dust removal box 11 is connected to a medium temperature flue gas inlet pipe 3, the medium temperature flue gas inlet pipe 3 is connected to the bottom of the desulfurization tower 4, the top of the desulfurization tower 4 is connected to a low temperature flue gas inlet pipe 10, the other end of the low temperature flue gas inlet pipe 10 is connected to the denitration tower 15, the desulfurization tower 4 is disposed in front of the denitration tower 15 to treat flue gas, thereby achieving the purpose of controlling the optimal activity temperature of the catalyst, removing high concentration sulfur dioxide gas and dust contained in the flue gas, and avoiding the catalyst, the service life of the catalyst is prolonged, the service life and the use effect of the catalyst are further improved, and the overall effect and the working efficiency of desulfurization and denitrification of the equipment are further improved.
In one embodiment, the electromagnetic valve 19 is installed on the branch pipe of the high-temperature smoke inlet pipeline 1, the other end of the branch pipe of the high-temperature smoke inlet pipeline 1 is communicated with the ceramic heat exchange pipe 12 sleeved on the low-temperature smoke inlet pipeline 10, the temperature sensor 13 installed in the low-temperature smoke inlet pipeline 10 is arranged on one side of the ceramic heat exchange pipe 12 close to the denitration tower 15, and the temperature sensor 13 is electrically connected with the electromagnetic valve 19, so that the effect of controlling the temperature of smoke entering the denitration tower 15 is achieved, energy required for preheating is saved, the denitration catalyst is kept at the optimal active temperature, and the denitration efficiency and effect are improved.
In one embodiment, the bottom of the desulfurizing tower 4 is provided with an aerator 20, an air distribution pipeline 21 penetrating through the bottom of the desulfurizing tower 4 is communicated above the aerator 20, and an aerator 22 is arranged above the air distribution pipeline 21, so that the flue gas containing sulfide is fully contacted and mixed with the desulfurizing liquid, the sulfide pollutants in the flue gas are preliminarily removed, and the temperature of the flue gas and the dust in the flue gas are further reduced.
In one embodiment, the side of the desulfurizing tower 4 is communicated with a lifting pipe 8, the lifting pipe 8 is provided with a water pump 5, the other end of the lifting pipe 8 penetrates through the top of the desulfurizing tower 4 to be communicated with a liquid homogenizing plate 9, a plurality of atomizing nozzles 7 are arranged below the liquid homogenizing plate 9, and a desulfurizing filler layer 6 arranged in the inner cavity of the desulfurizing tower 4 is arranged below the atomizing nozzles 7, so that the desulfurizing treatment effect on sulfur-containing compounds in flue gas is realized, the temperature of the flue gas and dust contained in the flue gas can be reduced, and the subsequent denitration catalyst is protected from being poisoned.
In one embodiment, the ammonia sprayer 14 is installed at the top of the inner cavity of the denitration tower 15, the denitration packing layer 16 installed in the inner cavity of the denitration tower 15 is arranged below the ammonia sprayer 14, the multilayer denitration catalyst layer 17 is arranged below the denitration packing layer 16, the reaction with nitrogen oxide pollutants contained in flue gas is realized, the denitration effect is realized, and the denitration effect is good.
In one embodiment, a steam pipe 23 is communicated below the side wall of the denitration tower 15, the other end of the steam pipe 23 is communicated with a condenser 24 installed on the side wall of the denitration tower 15, the condenser 24 is communicated with a return pipe 25 penetrating through the side wall of the denitration tower 15, and a denitration catalyst layer 17 is arranged below the return pipe 25, so that the effect of cleaning the catalyst to a certain extent is achieved, the service life of the catalyst is prolonged, and the denitration effect is also improved.
In one embodiment, the bottom of the denitration tower 15 is communicated with a smoke outlet pipeline 18, which plays a role of guiding out the desulfurized and denitrated smoke.
The working principle is as follows: when in use, high-temperature flue gas containing sulfide and nitrogen oxide enters the economizer 2 through the high-temperature flue gas inlet pipeline 1, redundant heat is recycled, meanwhile, the high-temperature flue gas is preliminarily cooled, the high-temperature flue gas passing through the economizer 2 enters the dust removal box 11 through the medium-temperature flue gas inlet pipeline 3, dust in the high-temperature flue gas is removed through the dust removal box 11, then the high-temperature flue gas enters the aerator 20 positioned at the bottom of the desulfurizing tower 4 through the medium-temperature flue gas inlet pipeline 3, the high-temperature flue gas enters desulfurizing liquid through the action of the gas distribution pipeline 21 and the aeration head 22, the flue gas containing sulfide is fully contacted and mixed with the desulfurizing liquid, sulfide pollutants in the flue gas are preliminarily removed, the temperature of the flue gas and the dust in the flue gas are further reduced, one side of the bottom of the desulfurizing tower 4 is communicated with the lifting pipe 8, the water pump 5 is arranged on the lifting pipe 8, and the desulfurizing liquid can enter the liquid, the desulfurization liquid is sprayed into the desulfurization tower 4 again through the atomizing nozzle 7 below the liquid homogenizing plate 9, so that the flue gas is in secondary full contact with the desulfurization liquid, the desulfurization effect is improved, meanwhile, the flue gas is subjected to secondary desulfurization treatment through the desulfurization packing layer 6, the desulfurized flue gas passes through the low-temperature flue gas inlet pipeline 10, the flue gas of the low-temperature flue gas inlet pipeline 10 is subjected to secondary heating through the ceramic heat exchange tube 12 communicated with the high-temperature flue gas inlet pipeline 1, the opening and closing of the electromagnetic valve 19 of the high-temperature flue gas inlet pipeline 1 are controlled through the temperature sensor 13 arranged at the outlet of the low-temperature flue gas inlet pipeline 10, so that the flue gas entering the denitration tower 15 reaches the proper temperature with the highest denitration catalyst activity, the flue gas entering the denitration tower 15 is mixed with the ammonia gas sprayed by the ammonia sprayer 14, the flue gas is subjected to preliminary deamination treatment by the denitration packing layer 16 and then is in contact, make nitrogen oxide pollutant in the flue gas react, carry out the denitration, the denitration is effectual, the flue gas after desulfurization and denitration treatment is finally derived through smoke outlet pipeline 18, 15 one side intercommunication of denitration tower has steam pipe 23, steam pipe 23 top intercommunication has condenser 24, flue gas through containing vapor after the denitration to denitration tower 15 condenses, make the comdenstion water fall on denitration catalyst layer 17 through back flow 25, carry out the washing of certain degree to the catalyst, the life of catalyst has not only been improved, the effect of denitration has also been improved.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a low temperature SOx/NOx control integration equipment, includes economizer (2), desulfurizing tower (4) and denitration tower (15), its characterized in that, economizer (2) one end intercommunication has high temperature to advance tobacco pipe way (1), and high temperature advances tobacco pipe way (1) other end intercommunication and have dust removal case (11) to smoke removal case (11) other end intercommunication medium temperature advances tobacco pipe way (3), medium temperature advances tobacco pipe way (3) intercommunication desulfurizing tower (4) bottom, and desulfurizing tower (4) top intercommunication has low temperature to advance tobacco pipe way (10) to low temperature advances tobacco pipe way (10) other end intercommunication denitration tower (15).
2. The integrated equipment for low-temperature desulfurization and denitrification according to claim 1, wherein the solenoid valve (19) is installed on the branch pipe of the high-temperature flue gas inlet pipeline (1), the other end of the branch pipe of the high-temperature flue gas inlet pipeline (1) is communicated with a ceramic heat exchange pipe (12) sleeved on the low-temperature flue gas inlet pipeline (10), one side of the ceramic heat exchange pipe (12) close to the denitrification tower (15) is provided with a temperature sensor (13) installed in the low-temperature flue gas inlet pipeline (10), and the temperature sensor (13) is electrically connected with the solenoid valve (19).
3. The integrated equipment for low-temperature desulfurization and denitrification according to claim 1, characterized in that an aerator (20) is installed at the bottom of the desulfurization tower (4), an air distribution pipeline (21) penetrating through the bottom of the desulfurization tower (4) is communicated above the aerator (20), and an aeration head (22) is installed above the air distribution pipeline (21).
4. The integrated equipment for low-temperature desulfurization and denitrification according to claim 1, wherein the side surface of the desulfurization tower (4) is communicated with a lifting pipe (8), the lifting pipe (8) is provided with a water pump (5), the other end of the lifting pipe (8) penetrates through the top of the desulfurization tower (4) and is communicated with a liquid homogenizing plate (9), a plurality of atomizing nozzles (7) are arranged below the liquid homogenizing plate (9), and a desulfurization packing layer (6) arranged in the inner cavity of the desulfurization tower (4) is arranged below the atomizing nozzles (7).
5. The integrated equipment for low-temperature desulfurization and denitrification according to claim 1, wherein an ammonia sprayer (14) is installed at the top of the inner cavity of the denitrification tower (15), a denitrification filler layer (16) installed in the inner cavity of the denitrification tower (15) is arranged below the ammonia sprayer (14), and a plurality of denitrification catalyst layers (17) are arranged below the denitrification filler layer (16).
6. The integrated equipment for low-temperature desulfurization and denitrification according to claim 1, characterized in that a steam pipe (23) is communicated below the side wall of the denitrification tower (15), the other end of the steam pipe (23) is communicated with a condenser (24) installed on the side wall of the denitrification tower (15), the condenser (24) is communicated with a return pipe (25) penetrating through the side wall of the denitrification tower (15), and a denitrification catalyst layer (17) is arranged below the return pipe (25).
7. The integrated equipment for low-temperature desulfurization and denitrification according to claim 1, wherein the bottom of the denitrification tower (15) is communicated with a smoke outlet pipeline (18).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021176844.9U CN212974688U (en) | 2020-06-23 | 2020-06-23 | Low temperature SOx/NOx control integration equipment |
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| CN202021176844.9U CN212974688U (en) | 2020-06-23 | 2020-06-23 | Low temperature SOx/NOx control integration equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113398728A (en) * | 2021-05-28 | 2021-09-17 | 江苏奥利思特环保科技有限公司 | Method and system for flue gas desulfurization, denitrification and recycling |
| CN113769553A (en) * | 2021-08-16 | 2021-12-10 | 华能国际电力股份有限公司大连电厂 | System method of SCR (selective catalytic reduction) desulfurization system |
| WO2023050699A1 (en) * | 2021-09-28 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature desulfurization and denitrification method and system for flue gas from biomass power plant |
| CN118022492A (en) * | 2024-03-18 | 2024-05-14 | 江苏瑞鼎环境工程有限公司 | Carbon dioxide capturing and purifying device and application method thereof |
-
2020
- 2020-06-23 CN CN202021176844.9U patent/CN212974688U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113398728A (en) * | 2021-05-28 | 2021-09-17 | 江苏奥利思特环保科技有限公司 | Method and system for flue gas desulfurization, denitrification and recycling |
| CN113769553A (en) * | 2021-08-16 | 2021-12-10 | 华能国际电力股份有限公司大连电厂 | System method of SCR (selective catalytic reduction) desulfurization system |
| WO2023050699A1 (en) * | 2021-09-28 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature desulfurization and denitrification method and system for flue gas from biomass power plant |
| CN118022492A (en) * | 2024-03-18 | 2024-05-14 | 江苏瑞鼎环境工程有限公司 | Carbon dioxide capturing and purifying device and application method thereof |
| CN118022492B (en) * | 2024-03-18 | 2024-08-16 | 江苏瑞鼎环境工程有限公司 | Carbon dioxide capturing and purifying device and application method thereof |
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