CN205361063U - Low temperature SCR reactor deNOx systems that connects in parallel - Google Patents
Low temperature SCR reactor deNOx systems that connects in parallel Download PDFInfo
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- CN205361063U CN205361063U CN201620113306.2U CN201620113306U CN205361063U CN 205361063 U CN205361063 U CN 205361063U CN 201620113306 U CN201620113306 U CN 201620113306U CN 205361063 U CN205361063 U CN 205361063U
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Abstract
The utility model provides a low temperature SCR reactor deNOx systems that connects in parallel, relates to the environmental protection technology field. Including chimney, two low temperature SCR reactors and the ammonia storing tank who connects gradually, ammonia pump, evaporimeter, ammonia empty blender, ammonia injection grid and ammonia cigarette blender, the input of the empty blender of ammonia still is connected with the fan simultaneously, and ammonia injection grid still passes through pipe connection flue gas source simultaneously, and the input of two low temperature SCR reactors is connected respectively to the output of ammonia cigarette blender, and the chimney is connected through a draught fan to the output of two low temperature SCR reactors. The utility model discloses being provided with two low temperature SCR reactors, can freely switching over between two low temperature SCR reactors, the system maintenance of being convenient for has improved the flexibility of system and the security of operation, when need to be changed catalyst or when safeguarding the maintenance of one of them low temperature SCR reactor, can close the entry baffle door and the outlet baffle door of closed correspondence, and not impact systems's normal operating.
Description
Technical field
This utility model relates to environmental technology field, is specially a kind of low-temperature SCR reactor parallel connection denitrating system.
Background technology
SCR flue gas denitrification system is the system adopting selective catalytic reduction that flue gas carries out denitration, SCR gas denitrifying technology refers under catalyst and oxygen existent condition, (it is generally in 310 420 DEG C) in the scope of low temperature, reducing agent (generally uses ammonia) and selectively the NOx in flue gas is reduced, and generation N2 and water reduce the technology of NOx emission.
In prior art, SCR flue gas denitrification system is generally adopted the work of single low-temperature SCR reactor, and the safety that service behaviour, work efficiency and system are run all exists obvious limitation.
Utility model content
The purpose of this utility model is to provide a kind of low-temperature SCR reactor parallel connection denitrating system, can freely switch, it is simple to system maintenance, improve the motility of system and the safety of operation between two low-temperature SCR reactors in parallel.
The technical scheme realizing above-mentioned purpose is: a kind of low-temperature SCR reactor parallel connection denitrating system, it is characterized in that: include chimney, two low-temperature SCR reactors and the tank used for storing ammonia being sequentially connected with, aqua ammonia pump, vaporizer, ammonia sky blender, ammonia-spraying grid and ammonia cigarette blender, the input of described ammonia sky blender is also associated with blower fan simultaneously, ammonia-spraying grid connects flue gas source also by pipeline simultaneously, the outfan of ammonia cigarette blender connects the input of two low-temperature SCR reactors respectively, and the outfan of two low-temperature SCR reactors connects chimney by an air-introduced machine.
It is respectively arranged with inlet baffle door between outfan and the input of two low-temperature SCR reactors of described ammonia cigarette blender, between the port of export and the air-introduced machine of two low-temperature SCR reactors, is respectively arranged with outlet damper door.
The structure of described two low-temperature SCR reactors is identical, including retort, is disposed with deflector, fairing and multi-layer catalyst in described retort from the top down, and the top of every layer of catalyst is all correspondingly arranged on soot blower；The compressor of the soot blower connected respectively in two low-temperature SCR reactors it is additionally provided with outside described retort.
The beneficial effects of the utility model:
1, this utility model is provided with two low-temperature SCR reactors, can freely switch between two low-temperature SCR reactors, it is easy to system maintenance, improve the motility of system and the safety of operation, when wherein a low-temperature SCR reactor needs more catalyst changeout or maintaining, inlet baffle door and the outlet damper door of correspondence can be closed, and not influential system is properly functioning.
2, for the unstability of system treatment quantity, treatment quantity may be higher, and two low-temperature SCR reactors can reach the effect of stable denitration, it is ensured that NOx qualified discharge, has high efficiency.When the treatment quantity that system is overall increases in controlled range, by system parallel running, it is not necessary to denitrating system is transformed, save cost.
Accompanying drawing explanation
Fig. 1 is the intention of structure of the present utility model.
Detailed description of the invention
As shown in Figure 1, this utility model includes 1, two low-temperature SCR reactors 2 of chimney and the tank used for storing ammonia 3 being sequentially connected with, aqua ammonia pump 4, vaporizer 5, ammonia sky blender 6, ammonia-spraying grid 7 and ammonia cigarette blender 8, the input of ammonia sky blender 6 is also associated with blower fan 9 simultaneously, ammonia-spraying grid 7 connects flue gas source also by pipeline simultaneously, the outfan of ammonia cigarette blender 6 connects the input of two low-temperature SCR reactors 2 respectively, and the outfan of two low-temperature SCR reactors 2 connects chimney 1 by an air-introduced machine 10.
It is respectively arranged with inlet baffle door 11 between outfan and the input of two low-temperature SCR reactors 2 of ammonia cigarette blender 8, between the port of export and the air-introduced machine 10 of two low-temperature SCR reactors 2, is respectively arranged with outlet damper door 12.
The structure of two low-temperature SCR reactors 2 is identical, including retort 13, is disposed with deflector 14, fairing 15 and multi-layer catalyst 16 in retort 13 from the top down, and the top of every layer of catalyst 16 is all correspondingly arranged on soot blower 17；The compressor 18 of the soot blower 17 connected respectively in two low-temperature SCR reactors 2 it is additionally provided with outside described retort.
Work process of the present utility model:
Ammonia in tank used for storing ammonia 3 is delivered in vaporizer 5 by aqua ammonia pump 4, the ammonia of tank used for storing ammonia 3 is evaporated to ammonia by vaporizer 5, the air that ammonia is sent here with blower fan 9 enters ammonia sky blender 6 and is diluted mixing, ammonia cigarette blender 8 is entered then through ammonia-spraying grid 7, mix homogeneously in ammonia cigarette blender 8 with flue gas, ammonia flue gas body enters low-temperature SCR reactor 2, passing sequentially through deflector 14, fairing 15 and multi-layer catalyst 16, flue gas delivers to chimney 1 from the port of export of low-temperature SCR reactor 2 by air-introduced machine 10.
It is respectively arranged with inlet baffle door 11 between outfan and the input of two low-temperature SCR reactors 2 of ammonia cigarette blender 8, between the port of export and the air-introduced machine 10 of two low-temperature SCR reactors 2, is respectively arranged with outlet damper door 12.When wherein a low-temperature SCR reactor 2 needs more catalyst changeout 16 or maintaining, it is possible to close corresponding inlet baffle door 11 and outlet damper door 12, and not influential system is properly functioning
When system processes exhaust gas volumn increase, inlet baffle door 11 and the outlet damper door 12 of two low-temperature SCR reactors 2 can be opened simultaneously, reduce the process load of low-temperature SCR reactor, improve denitration efficiency.
Claims (3)
1. a low-temperature SCR reactor parallel connection denitrating system, it is characterized in that: include chimney, two low-temperature SCR reactors and the tank used for storing ammonia being sequentially connected with, aqua ammonia pump, vaporizer, ammonia sky blender, ammonia-spraying grid and ammonia cigarette blender, the input of described ammonia sky blender is also associated with blower fan simultaneously, ammonia-spraying grid connects flue gas source also by pipeline simultaneously, the outfan of ammonia cigarette blender connects the input of two low-temperature SCR reactors respectively, and the outfan of two low-temperature SCR reactors connects chimney by an air-introduced machine.
2. a kind of low-temperature SCR reactor parallel connection denitrating system according to claim 1, it is characterized in that: be respectively arranged with inlet baffle door between outfan and the input of two low-temperature SCR reactors of described ammonia cigarette blender, between the port of export and the air-introduced machine of two low-temperature SCR reactors, be respectively arranged with outlet damper door.
3. a kind of low-temperature SCR reactor parallel connection denitrating system according to claim 1 and 2, it is characterized in that: the structure of described two low-temperature SCR reactors is identical, including retort, being disposed with deflector, fairing and multi-layer catalyst in described retort from the top down, the top of every layer of catalyst is all correspondingly arranged on soot blower；The compressor of the soot blower connected respectively in two low-temperature SCR reactors it is additionally provided with outside described retort.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620113306.2U CN205361063U (en) | 2016-02-04 | 2016-02-04 | Low temperature SCR reactor deNOx systems that connects in parallel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620113306.2U CN205361063U (en) | 2016-02-04 | 2016-02-04 | Low temperature SCR reactor deNOx systems that connects in parallel |
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| CN205361063U true CN205361063U (en) | 2016-07-06 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107088365A (en) * | 2017-05-15 | 2017-08-25 | 大唐环境产业集团股份有限公司 | A kind of Y types SCR system catalyst on-line continuous regenerating unit |
| CN109351181A (en) * | 2018-11-26 | 2019-02-19 | 南京杰科丰环保技术装备研究院有限公司 | A kind of method and system of the wide temperature SCR denitrating flue gas of integrated form |
| CN109433007A (en) * | 2018-12-25 | 2019-03-08 | 陕西大秦环境科技有限公司 | A kind of coke oven flue gas low temperature SCR denitration device |
| CN109589789A (en) * | 2018-12-19 | 2019-04-09 | 华电电力科学研究院有限公司 | A kind of SCR denitration system and its working method of two-stage reactor parallel running |
| CN109603528A (en) * | 2018-12-31 | 2019-04-12 | 华电电力科学研究院有限公司 | A kind of denitrating system and its working method of multi-stage reacting device |
| CN111992026A (en) * | 2020-07-20 | 2020-11-27 | 张家港市锦明机械有限公司 | Denitration double-reactor arrangement method and system for realizing online switching |
| CN112191098A (en) * | 2020-09-30 | 2021-01-08 | 江苏扬子催化剂有限公司 | Low-temperature denitration granular catalyst and honeycomb catalyst series-parallel combined reaction process |
-
2016
- 2016-02-04 CN CN201620113306.2U patent/CN205361063U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107088365A (en) * | 2017-05-15 | 2017-08-25 | 大唐环境产业集团股份有限公司 | A kind of Y types SCR system catalyst on-line continuous regenerating unit |
| CN109351181A (en) * | 2018-11-26 | 2019-02-19 | 南京杰科丰环保技术装备研究院有限公司 | A kind of method and system of the wide temperature SCR denitrating flue gas of integrated form |
| CN109351181B (en) * | 2018-11-26 | 2024-01-12 | 南京杰科丰环保技术装备研究院有限公司 | Integrated wide-temperature SCR flue gas denitration method and system |
| CN109589789A (en) * | 2018-12-19 | 2019-04-09 | 华电电力科学研究院有限公司 | A kind of SCR denitration system and its working method of two-stage reactor parallel running |
| CN109433007A (en) * | 2018-12-25 | 2019-03-08 | 陕西大秦环境科技有限公司 | A kind of coke oven flue gas low temperature SCR denitration device |
| CN109603528A (en) * | 2018-12-31 | 2019-04-12 | 华电电力科学研究院有限公司 | A kind of denitrating system and its working method of multi-stage reacting device |
| CN109603528B (en) * | 2018-12-31 | 2023-11-14 | 华电电力科学研究院有限公司 | Denitration system of multistage reaction device and working method thereof |
| CN111992026A (en) * | 2020-07-20 | 2020-11-27 | 张家港市锦明机械有限公司 | Denitration double-reactor arrangement method and system for realizing online switching |
| CN112191098A (en) * | 2020-09-30 | 2021-01-08 | 江苏扬子催化剂有限公司 | Low-temperature denitration granular catalyst and honeycomb catalyst series-parallel combined reaction process |
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