CN205868011U - SCR method flue gas denitration system - Google Patents
SCR method flue gas denitration system Download PDFInfo
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- CN205868011U CN205868011U CN201620769307.2U CN201620769307U CN205868011U CN 205868011 U CN205868011 U CN 205868011U CN 201620769307 U CN201620769307 U CN 201620769307U CN 205868011 U CN205868011 U CN 205868011U
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- ammonia
- mixing arrangement
- pipeline
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- transfer pump
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Abstract
The utility model discloses a SCR method flue gas denitration system, it includes liquid ammonia storage tank, liquid ammonia transfer pump and ammonia mixing arrangement, and the export of liquid ammonia storage tank is passed through the A pipeline and is connected with the liquid ammonia transfer pump, and the liquid ammonia transfer pump passes through B pipeline and ammonia mixing arrangement's liquid ammonia entry linkage, and ammonia mixing arrangement passes through the C pipeline and is connected with the ammonia injection grid device, and ammonia mixing arrangement still is connected with blower device, is provided with heating device on the ammonia mixing arrangement. The utility model discloses do not need liquid ammonia through equipment such as liquid ammonia evaporator, ammonia buffer tanks, again with air mixing, but through the direct heating device that sets up on ammonia mixing arrangement for the process that liquid conversion of ammonia is the ammonia is simple, and not only the procedure is simple, and is efficient, moreover the operation maintenance cost greatly reduced of equipment.
Description
Technical field
This utility model relates to a kind of SCR method flue gas denitrification system, belongs to field of environment protection equipment.
Background technology
NOXThe emphasis administering always world's most countries environmental conservation, its produced pollutant cause me especially
One of greatest contamination source of state's environmental destruction, has had become as the task of top priority of China's air pollution treatment at present.
For NOXImprovement, mainly use SCR (SCR) method flue-gas denitration process, this technique
Denitration efficiency is high, non-secondary pollution, is widely used in various combustion apparatus, and its denitration principle is for using NH3(liquefied ammonia, ammonia
Or ureaclastic ammonia) as reducing agent, be injected to after dilution in denitration reactor inlet flue, when by catalyst layer with
NOX in flue gas reacts and generates the N of non-secondary pollution2And H2O is with fume emission.And a kind of SCR method flue gas used at present
The process that liquefied ammonia is converted into ammonia by denitrating system is complex, needs liquefied ammonia to set through liquid ammonia evaporator, ammonia surge tank etc.
After Bei, then mixing with air, not only program is loaded down with trivial details, and efficiency is low, and the operation and maintenance cost of equipment is high.
Utility model content
The purpose of this utility model is, it is provided that a kind of SCR method flue gas denitrification system, liquefied ammonia is converted into ammonia by this system
Process simple, improve denitration efficiency, decrease the follow-up maintenance expense of equipment.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that: a kind of SCR method denitrating flue gas system
Uniting, it includes liquid ammonia storage tank, liquefied ammonia transfer pump and ammonia mixing arrangement, and liquefied ammonia transfer pump is for by defeated for the liquefied ammonia in liquid ammonia storage tank
Deliver to ammonia mixing arrangement.The outlet of liquid ammonia storage tank is connected with liquefied ammonia transfer pump by A pipeline, and liquefied ammonia transfer pump passes through B pipeline
Being connected with the liquefied ammonia entrance of ammonia mixing arrangement, ammonia mixing arrangement is connected with ammonia-spraying grid device by C pipeline, and ammonia mixes
Device is also connected with blower fan apparatus, and ammonia mixing arrangement is provided with heater.Liquefied ammonia from liquid ammonia storage tank via liquefied ammonia supply
Pump enters ammonia mixing arrangement, is directly heated the liquefied ammonia in ammonia mixing arrangement by heater, makes liquefied ammonia become
Ammonia, ammonia mixes with air again, forms gaseous mixture, and this gaseous mixture then enters ammonia-spraying grid device by C pipeline.
In aforesaid a kind of SCR method flue gas denitrification system, described ammonia mixing arrangement is by D pipeline with blower fan apparatus even
Connect.Blower fan apparatus is for providing the air mixed in ammonia mixing arrangement with ammonia；Blower fan apparatus is defeated by air by D pipeline
Deliver to ammonia mixing arrangement.
In aforesaid a kind of SCR method flue gas denitrification system, described heater is steam heater or electrical heating dress
Put.
Compared with prior art, this utility model need not liquefied ammonia through equipment such as liquid ammonia evaporator, ammonia surge tanks, then
Mix with air, but by directly arranging heater on ammonia mixing arrangement so that liquefied ammonia is converted into the process of ammonia
Simply, not only program is simple, and efficiency is high, and the operation and maintenance cost of equipment is substantially reduced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Reference: 1-liquid ammonia storage tank, 2-liquefied ammonia transfer pump, 3-ammonia mixing arrangement, 4-A pipeline, 5-B pipeline, 6-C manages
Road, 7-ammonia-spraying grid device, 8-D pipeline, 9-blower fan apparatus, 10-heater.
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings.
Detailed description of the invention
Embodiment 1 of the present utility model: a kind of SCR method flue gas denitrification system, including liquid ammonia storage tank 1, liquefied ammonia transfer pump 2 and
Ammonia mixing arrangement 3, the outlet of liquid ammonia storage tank 1 is connected with liquefied ammonia transfer pump 2 by A pipeline 4, and liquefied ammonia transfer pump 2 is by B pipeline
5 are connected with the liquefied ammonia entrance of ammonia mixing arrangement 3, and ammonia mixing arrangement 3 is connected with ammonia-spraying grid device 7 by C pipeline 6, ammonia
Gas mixing arrangement 3 is connected with blower fan apparatus 9 also by D pipeline 8.Ammonia mixing arrangement 3 is also connected with blower fan apparatus 9, and ammonia mixes
Steam heater 10 it is provided with on locking device 3.
Embodiment 2 of the present utility model: a kind of SCR method flue gas denitrification system, including liquid ammonia storage tank 1, liquefied ammonia transfer pump 2 and
Ammonia mixing arrangement 3, the outlet of liquid ammonia storage tank 1 is connected with liquefied ammonia transfer pump 2 by A pipeline 4, and liquefied ammonia transfer pump 2 is by B pipeline
5 are connected with the liquefied ammonia entrance of ammonia mixing arrangement 3, and ammonia mixing arrangement 3 is connected with ammonia-spraying grid device 7 by C pipeline 6, ammonia
Gas mixing arrangement 3 is connected with blower fan apparatus 9 also by D pipeline 8.Ammonia mixing arrangement 3 is also connected with blower fan apparatus 9, and ammonia mixes
Electric heater unit 10 it is provided with on locking device 3.
Operation principle of the present utility model: liquefied ammonia enters ammonia via liquefied ammonia transfer pump 2 by B pipeline 5 from liquid ammonia storage tank 1
Mixing arrangement 3, is directly heated the liquefied ammonia in ammonia mixing arrangement 3 by heater 10, makes liquefied ammonia become ammonia, ammonia
Gas mixes with the air provided by blower fan apparatus 9 again, forms gaseous mixture, and this gaseous mixture then enters ammonia-spraying grid by C pipeline 6 and fills
Put 7, be injected in denitration reactor inlet flue by ammonia-spraying grid device 7.
Claims (3)
1. a SCR method flue gas denitrification system, it is characterised in that: include that liquid ammonia storage tank (1), liquefied ammonia transfer pump (2) and ammonia are mixed
Locking device (3), the outlet of described liquid ammonia storage tank (1) is connected with liquefied ammonia transfer pump (2) by A pipeline (4), liquefied ammonia transfer pump (2)
Being connected by the liquefied ammonia entrance of B pipeline (5) with ammonia mixing arrangement (3), ammonia mixing arrangement (3) is by C pipeline (6) and spray ammonia
Grid device (7) connects, and ammonia mixing arrangement (3) is also connected with blower fan apparatus (9), and described ammonia mixing arrangement (3) is upper to be arranged
There is heater (10).
A kind of SCR method flue gas denitrification system the most according to claim 1, it is characterised in that: described ammonia mixing arrangement (3)
It is connected with blower fan apparatus (9) by D pipeline (8).
A kind of SCR method flue gas denitrification system the most according to claim 1 and 2, it is characterised in that: described heater (10)
For steam heater or electric heater unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769307.2U CN205868011U (en) | 2016-07-20 | 2016-07-20 | SCR method flue gas denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620769307.2U CN205868011U (en) | 2016-07-20 | 2016-07-20 | SCR method flue gas denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205868011U true CN205868011U (en) | 2017-01-11 |
Family
ID=57697959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620769307.2U Active CN205868011U (en) | 2016-07-20 | 2016-07-20 | SCR method flue gas denitration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205868011U (en) |
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2016
- 2016-07-20 CN CN201620769307.2U patent/CN205868011U/en active Active
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