CN102363098A - Ammonia flue gas mixing apparatus used in stern exhaust gas processing system - Google Patents
Ammonia flue gas mixing apparatus used in stern exhaust gas processing system Download PDFInfo
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- CN102363098A CN102363098A CN2011101771008A CN201110177100A CN102363098A CN 102363098 A CN102363098 A CN 102363098A CN 2011101771008 A CN2011101771008 A CN 2011101771008A CN 201110177100 A CN201110177100 A CN 201110177100A CN 102363098 A CN102363098 A CN 102363098A
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- gas
- ammonia
- heat exchanger
- flue gas
- scr denitrification
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Abstract
The invention discloses an ammonia flue gas mixing apparatus used in a stern exhaust gas processing system. The apparatus comprises an evaporator connected to an ammonia storing tank. The evaporator is connected to an ammonia gas buffering tank. The ammonia gas buffering tank communicates with a demister arranged between a flue gas outlet of a desulphurization apparatus and a gas-gas heat exchanger. The demister is connected to a cold end inlet of the gas-gas heat exchanger through a pipeline. The cold end inlet of the gas-gas heat exchanger is connected to an SCR denitrification apparatus, wherein non-uniform coefficient Cvucata of flue gas velocity on a first layer catalyst inlet interface in the SCR denitrification apparatus is smaller than 15%, the ammonia-nitrogen ratio non-uniform coefficient Cvrcata is smaller than 5%, the temperature difference is smaller than +-10K, and the temperature difference at the catalyst inlet interface in front of the SCR denitrification apparatus inlet is smaller than +-1K. The apparatus provided by the invention is characterized in reasonable structure, good working performance and low pollution.
Description
Technical field
The present invention relates to a kind of ammonia flue gas mixing arrangement of tail exhaust-gas treatment system peculiar to vessel.
Background technology
The ammonia flue gas mixing arrangement of existing tail exhaust-gas treatment system peculiar to vessel, complex structure, service behaviour is undesirable.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructurely, the stern exhaust-gas treatment system of favorable working performance is used the ammonia flue gas mixing arrangement.
Technical solution of the present invention is:
A kind of stern exhaust-gas treatment system is used the ammonia flue gas mixing arrangement; It is characterized in that: comprise the evaporimeter that is connected with the ammonia basin; Evaporimeter is connected with the ammonia surge tank; The ammonia surge tank communicates with demister between desulfurizer exhanst gas outlet to the gas-to-gas heat exchanger; Demister is connected with the cold side inlet of gas-to-gas heat exchanger through pipeline; The cold side outlet of gas-to-gas heat exchanger is connected with the SCR denitrification apparatus, in the SCR denitrification apparatus on the first floor catalyst inlet interface flue gas flow rate nonuniformity coefficient
less than 15%; , ammonia nitrogen than nonuniformity coefficient
less than 5%; The temperature difference is less than ± 10 K; Before the SCR denitrification apparatus inlet, temperature difference is less than ± 1 K on the catalyst inlet interface; Nonuniformity coefficient
is defined as:
In the formula:
--the k variable is in the standard deviation of l parts place multi-measuring point;
K--represent ammonia nitrogen than r, perpendicular to the flow velocity u of parts respectively;
L--first floor catalyst.
The present invention is rational in infrastructure, and favorable working performance is polluted little.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is the structural representation of one embodiment of the invention.
The specific embodiment
A kind of stern exhaust-gas treatment system is used the ammonia flue gas mixing arrangement; Comprise the evaporimeter 2 that is connected with ammonia basin 1; Evaporimeter is connected with ammonia surge tank 3; The ammonia surge tank communicates with demister 6 between desulfurizer 4 exhanst gas outlets to the gas-to-gas heat exchanger 5; Demister is connected with the cold side inlet of gas-to-gas heat exchanger through pipeline; The cold side outlet of gas-to-gas heat exchanger is connected with SCR denitrification apparatus 7, in the SCR denitrification apparatus on the first floor catalyst inlet interface flue gas flow rate nonuniformity coefficient
less than 15%; , ammonia nitrogen than nonuniformity coefficient
less than 5%; The temperature difference is less than ± 10 K; Before the SCR denitrification apparatus inlet, temperature difference is less than ± 1 K on the catalyst inlet interface; Nonuniformity coefficient
is defined as:
In the formula:
--the k variable is in the standard deviation of l parts place multi-measuring point;
K--represent ammonia nitrogen than r, perpendicular to the flow velocity u of parts respectively;
L--first floor catalyst.
Claims (1)
1. a stern exhaust-gas treatment system is used the ammonia flue gas mixing arrangement; It is characterized in that: comprise the evaporimeter that is connected with the ammonia basin; Evaporimeter is connected with the ammonia surge tank; The ammonia surge tank communicates with demister between desulfurizer exhanst gas outlet to the gas-to-gas heat exchanger; Demister is connected with the cold side inlet of gas-to-gas heat exchanger through pipeline; The cold side outlet of gas-to-gas heat exchanger is connected with the SCR denitrification apparatus, in the SCR denitrification apparatus on the first floor catalyst inlet interface flue gas flow rate nonuniformity coefficient
less than 15%; , ammonia nitrogen than nonuniformity coefficient
less than 5%; The temperature difference is less than ± 10 K; Before the SCR denitrification apparatus inlet, temperature difference is less than ± 1 K on the catalyst inlet interface; Nonuniformity coefficient
is defined as:
In the formula:
--the k variable is in the standard deviation of l parts place multi-measuring point;
K--represent ammonia nitrogen than r, perpendicular to the flow velocity u of parts respectively;
L--first floor catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110177100.8A CN102363098B (en) | 2011-06-28 | 2011-06-28 | Ammonia flue gas mixing apparatus used in stern exhaust gas processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110177100.8A CN102363098B (en) | 2011-06-28 | 2011-06-28 | Ammonia flue gas mixing apparatus used in stern exhaust gas processing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102363098A true CN102363098A (en) | 2012-02-29 |
| CN102363098B CN102363098B (en) | 2014-03-19 |
Family
ID=45689709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110177100.8A Expired - Fee Related CN102363098B (en) | 2011-06-28 | 2011-06-28 | Ammonia flue gas mixing apparatus used in stern exhaust gas processing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN102363098B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9387438B2 (en) | 2014-02-14 | 2016-07-12 | Tenneco Automotive Operating Company Inc. | Modular system for reduction of sulphur oxides in exhaust |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053760A (en) * | 2007-02-13 | 2007-10-17 | 武汉都市环保工程技术股份有限公司 | Sintering flue gas ammonia method desulfurizing system |
| CN101518714A (en) * | 2009-03-26 | 2009-09-02 | 厦门金纶科技有限公司 | Technological process for flue gas purification |
| CN201524525U (en) * | 2009-09-11 | 2010-07-14 | 宇星科技发展(深圳)有限公司 | SCR flue gas denitrating device |
| CN102068897A (en) * | 2011-01-11 | 2011-05-25 | 中环（中国）工程有限公司 | Ammonia supply device for ammonia method desulfuration process |
-
2011
- 2011-06-28 CN CN201110177100.8A patent/CN102363098B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053760A (en) * | 2007-02-13 | 2007-10-17 | 武汉都市环保工程技术股份有限公司 | Sintering flue gas ammonia method desulfurizing system |
| CN101518714A (en) * | 2009-03-26 | 2009-09-02 | 厦门金纶科技有限公司 | Technological process for flue gas purification |
| CN201524525U (en) * | 2009-09-11 | 2010-07-14 | 宇星科技发展(深圳)有限公司 | SCR flue gas denitrating device |
| CN102068897A (en) * | 2011-01-11 | 2011-05-25 | 中环（中国）工程有限公司 | Ammonia supply device for ammonia method desulfuration process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9387438B2 (en) | 2014-02-14 | 2016-07-12 | Tenneco Automotive Operating Company Inc. | Modular system for reduction of sulphur oxides in exhaust |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102363098B (en) | 2014-03-19 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120229 Assignee: Jiangsu Nantong Shentong Machinery Co., Ltd. Assignor: Gu Zhonghua|Miu Hongjian Contract record no.: 2014320000631 Denomination of invention: Ammonia flue gas mixing apparatus used in stern exhaust gas processing system Granted publication date: 20140319 License type: Exclusive License Record date: 20140725 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20210628 |
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| CF01 | Termination of patent right due to non-payment of annual fee |