CN105549633A - SCR flue gas flow adjustment system and reactor for exhaust processing of marine diesel engine - Google Patents
SCR flue gas flow adjustment system and reactor for exhaust processing of marine diesel engine Download PDFInfo
- Publication number
- CN105549633A CN105549633A CN201610042471.8A CN201610042471A CN105549633A CN 105549633 A CN105549633 A CN 105549633A CN 201610042471 A CN201610042471 A CN 201610042471A CN 105549633 A CN105549633 A CN 105549633A
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- CN
- China
- Prior art keywords
- flue gas
- gas flow
- marine diesel
- reactor
- scr flue
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
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- 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
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to a waste gas cleaning system of an internal combustion engine, and especially relates to an SCR flue gas flow adjustment system and reactor for the exhaust processing of a marine diesel engine. The system comprises a main frame (1), and the interior of the main frame (1) is provided with at least two cut points. Each cut point comprises a plurality of shutter blades (2) which are fixedly connected with a driven rotating shaft (3). The shutter blades (2) can rotate along the driven rotating shaft (3), so as to adjust the angle. The system can achieve a purpose well that a plurality of diesel engines share one catalyst reactor, thereby greatly saving the space and use cost. A diesel engine denitration system exerts higher requirements for the flow and temperature of flue gas. However, the system provided by the invention can control the flow and temperature of flue gas, and improves the reaction effect of the flue gas and catalyst.
Description
Technical field
The present invention relates to internal-combustion engines exhaust gas purifying system, particularly relate to a kind of SCR flue gas flow regulating system and reactor of marine diesel pump-down process.
Background technology
For improving the atmospheric pollution that boats and ships cause, International Maritime Organization (IMO) IMO have passed MARPOL73/78 pact supplemental provisions VI in 1997---and prevent boats and ships from causing atmospheric pollution rule, this rule is formally effective on May 19th, 2005.In October, 2008, MEPC58 meeting has been passed through discussion again the amendment of supplemental provisions VI, the discharge of this amendment to boats and ships harmful gas proposes stricter requirement, and specify that the three phases of emission limits of nitrogen oxides, i.e. Tier I, Tier II and Tier III.Require that boats and ships need to install the diesel engine meeting Tier III and require after on January 1st, 2016, just can sail emission control district into.
According to current technical merit, only rely on diesel engine self emission-reduction technology to be difficult to the standard meeting Tier III, this just means that diesel engine must be realized this goal by post-processing technology.In oxides of nitrogen post-processing technology, " " SelectiveCatalyticReduction, abbreviation SCR is acknowledged as the most ripe, effective measures to SCR.
Medium-and-High Speed Marine Diesel Engine is all with the corresponding reactor of a diesel engine when designing hydrogen-catalyst reactor.Take a large amount of spaces, and in boats and ships, space is very valuable.
Summary of the invention
1, technical matters to be solved:
Existing Medium-and-High Speed Marine Diesel Engine takes up room greatly at design hydrogen-catalyst reactor.
2, technical scheme:
In order to overcome the above problems, the invention provides a kind of SCR flue gas flow regulating system of marine diesel pump-down process, comprise main frame 1, at least two sections are provided with in main frame 1, each section comprises multi-disc louvre blade 2, louvre blade 2 is fixedly connected with driven turning axle 2, and louvre blade 2 can rotate along with the rotation of driven turning axle 2 thus adjust angle.
The follower link identical with driven turning axle 2 quantity 5,1 kinematic link 6,1 main drive shaft 7 and 1 pneumatic actuator 8 is also provided with in described each section, described driven turning axle 2 is connected with follower link 5, described follower link 5 is connected with kinematic link 6, described kinematic link 6 is connected with main drive shaft 7, and described main drive shaft 7 is connected with pneumatic actuator 8.
Described section is 2.
PID regulable control is with in described startup actuator.
Fewer than the number of louvre blade 21 of the number of the driven turning axle 3 of described each section.
The quantity of described louvre blade 2 is 8.
Present invention also offers a kind of reactor, comprise the SCR flue gas flow regulating system of described marine diesel pump-down process.
The SCR flue gas flow regulating system installation by adhering of described marine diesel pump-down process is on reactor.
3, beneficial effect:
Use flue gas flow regulating system provided by the invention can well realize multiple stage diesel engine and share a hydrogen-catalyst reactor, greatly save space and use cost.Marine diesel denitrating system has very high requirement to the flow of flue gas and temperature, after having installed flue gas flow control system provided by the invention, can well control flow velocity and the temperature thereof of flue gas, better improve flue gas and catalyzer reaction effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the installation site schematic diagram of the present invention in SCR reactor.
Embodiment
Below by accompanying drawing, the present invention is described in detail.
As shown in Figure 1, a kind of SCR flue gas flow regulating system of marine diesel pump-down process, comprise main frame 1, at least two sections are provided with in main frame 1, each section comprises multi-disc louvre blade 2, louvre blade 2 is fixedly connected with driven turning axle 2, and louvre blade 2 can rotate along with the rotation of driven turning axle 2 thus adjust angle.
Described driven turning axle mainly plays and drives the often group effect that all the other louvre blades rotate except main drive shaft.Axle two ends are connected with follower link through behind main body frame two ends, carry out spacing with split pin.
Described louvre blade 2 mainly plays the effect of the flue gas flow that dams, and louvre blade 2 requirement that is how many by product flow and a whole set of deisgn product designs section, and the different section quantity of product is also different.
The individual follower link identical with driven turning axle 2 quantity 5,1 kinematic link 6,1 main drive shaft 7 and 1 pneumatic actuator 8 is also provided with in described each section, described driven turning axle 2 is connected with follower link 5, described follower link 5 is connected with kinematic link 6, described kinematic link 6 is connected with main drive shaft 7, and described main drive shaft 7 is connected with pneumatic actuator 8.
The SCR flue gas flow regulating system that the present invention starves marine diesel pump-down process adopts multi-point interlinked linkage assembly, an axle rotarily drives other axle and rotates together, louvre blade is installed on axle, and baffle plate also and then rotates together so when the shaft is rotated, such flexible and convenient operation.And employing is easy to dismounting.
Described follower link 5 one is connected with driven turning axle 3, and other end is connected with kinematic link 6, and the driven turning axle 2 belonging to main drive rotates, and follower link 5 is installed on outside main body two ends.
Described kinematic link 6 is connected with each follower link 5, mainly plays the effect of transmission power, is installed on outside main body two ends.
Described main drive shaft 7 is connected with pneumatic actuator 8, mainly plays the operation of Power output.
Described pneumatic actuator 8 mainly provides the driving force driving louvre blade.
The driver of band PID regulatory function selected by described pneumatic actuator 8, when flow sensor in SCR system records the size variation of flue gas flow in pipeline, to the signal of PLC in control system, PLC gives pneumatic actuator one output signal again, controls the size of louvre blade aperture.The aperture that this control system can realize baffle plate controls, can according to the real-time controllable register aperture of signal feedback.PID can be realized to flue gas flow to regulate.
The invention provides a kind of reactor, comprise the SCR flue gas flow regulating system of described marine diesel pump-down process.Reactor of the present invention can be applied to multiple marine diesel, when the section of the SCR flue gas flow regulating system of marine diesel pump-down process is 2, can be applied to two marine diesels, when section is 3, can be applied to three marine diesels.The confidential corresponding reactor of an original marine diesel oil, adopts reactor of the present invention, and same reactor can to being applied to multiple stage marine diesel, and multiple stage diesel engine for ship reactor, has saved the space on boats and ships.
The SCR flue gas flow regulating system installation by adhering of described marine diesel pump-down process is on reactor.
As long as manhole flange 9 is dismantled, directly just can lift down.Also only need regulating device directly to push in reactor during installation, cover manhole cover just, very convenient.
Embodiment 1
Described louvre blade 2 is 8, and driven turning axle 3 is 7, and section is 2.
During the diesel engine of corresponding 2 1000KW of the reactor of 2000KW consumption, when 2 diesel engines are opened together marine diesel pump-down process SCR flue gas flow regulating system in 2 sections will all open, just can turn off one group of louvre blade 2 when only having 1 diesel engine to open.Marine diesel denitrating system has very high requirement to the flow of flue gas and temperature, after the SCR flue gas flow regulating system of marine diesel pump-down process has been installed, flow velocity and the temperature thereof of flue gas can well be controlled, better improve flue gas and catalyzer reaction effect.
Although the present invention with preferred embodiment openly as above; but they are not of the present invention for limiting; anyly have the knack of this those skilled in the art; without departing from the spirit and scope of the invention; can make various changes or retouch from working as, what therefore protection scope of the present invention should define with the claims of the application is as the criterion.
Claims (8)
1. the SCR flue gas flow regulating system of a marine diesel pump-down process, comprise main frame (1), it is characterized in that: main frame is provided with at least two sections in (1), each section comprises multi-disc louvre blade (2), louvre blade (2) is fixedly connected with driven turning axle (2), and louvre blade (2) can rotate along with the rotation of driven turning axle (2) thus adjust angle.
2. the SCR flue gas flow regulating system of marine diesel pump-down process as claimed in claim 1, it is characterized in that: in described each section, be also provided with the follower link (5) identical with driven turning axle (2) quantity, 1 kinematic link (6), 1 main drive shaft (7) and 1 pneumatic actuator (8), described driven turning axle (2) is connected with follower link (5), described follower link (5) is connected with kinematic link (6), described kinematic link (6) is connected with main drive shaft (7), and described main drive shaft (7) is connected with pneumatic actuator (8).
3. the SCR flue gas flow regulating system of marine diesel pump-down process as claimed in claim 1, is characterized in that: described section is 2.
4. the SCR flue gas flow regulating system of marine diesel pump-down process as claimed in claim 2, is characterized in that: be with PID regulable control in described startup actuator.
5. the SCR flue gas flow regulating system of the marine diesel pump-down process as described in claim as arbitrary in claim 1-4, is characterized in that: fewer than the number of louvre blade (2) 1 of the number of the driven turning axle (3) of described each section.
6. the SCR flue gas flow regulating system of the marine diesel pump-down process as described in claim as arbitrary in claim 1-4, is characterized in that: the quantity of described louvre blade (2) is 8.
7. a reactor, is characterized in that: the SCR flue gas flow regulating system comprising the marine diesel pump-down process as described in claim as arbitrary in claim 1-6.
8. reactor as claimed in claim 7, is characterized in that: the SCR flue gas flow regulating system installation by adhering of described marine diesel pump-down process is on reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042471.8A CN105549633B (en) | 2016-01-22 | 2016-01-22 | SCR flue gas flow regulating system and reactor for exhaust treatment of marine diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042471.8A CN105549633B (en) | 2016-01-22 | 2016-01-22 | SCR flue gas flow regulating system and reactor for exhaust treatment of marine diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105549633A true CN105549633A (en) | 2016-05-04 |
| CN105549633B CN105549633B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610042471.8A Active CN105549633B (en) | 2016-01-22 | 2016-01-22 | SCR flue gas flow regulating system and reactor for exhaust treatment of marine diesel engine |
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| CN (1) | CN105549633B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252111A (en) * | 2019-06-05 | 2019-09-20 | 成都易态科技有限公司 | Flue gas cleaning treatment method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090272099A1 (en) * | 2008-04-30 | 2009-11-05 | Phanindra Garimella | Apparatus, system, and method for determining the degradation of an scr catalyst |
| DE102010010125A1 (en) * | 2009-03-24 | 2010-10-14 | GM Global Technology Operations, Inc., Detroit | Control of ammonia loading for SCR catalyst before DPF regeneration |
| CN202810587U (en) * | 2013-01-04 | 2013-03-20 | 山东豪迈重型机械有限公司 | Reciprocating swinging diversion shutter |
| CN103266941A (en) * | 2013-04-25 | 2013-08-28 | 中国船舶重工集团公司第七一一研究所 | Control method of marine SCR (selective catalytic reduction) system |
| CN204017667U (en) * | 2014-01-13 | 2014-12-17 | 广东清华中邦热能科技有限公司 | A kind of Novel SCR denitrating system |
| CN204672141U (en) * | 2015-05-28 | 2015-09-30 | 中国华电工程(集团)有限公司 | A kind of controllable type denitration reaction system |
| CN205540307U (en) * | 2016-01-22 | 2016-08-31 | 南通亚泰工程技术有限公司 | SCR flue gas flux governing system and reactor of marine diesel exhaust -gas disposal |
-
2016
- 2016-01-22 CN CN201610042471.8A patent/CN105549633B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090272099A1 (en) * | 2008-04-30 | 2009-11-05 | Phanindra Garimella | Apparatus, system, and method for determining the degradation of an scr catalyst |
| DE102010010125A1 (en) * | 2009-03-24 | 2010-10-14 | GM Global Technology Operations, Inc., Detroit | Control of ammonia loading for SCR catalyst before DPF regeneration |
| CN202810587U (en) * | 2013-01-04 | 2013-03-20 | 山东豪迈重型机械有限公司 | Reciprocating swinging diversion shutter |
| CN103266941A (en) * | 2013-04-25 | 2013-08-28 | 中国船舶重工集团公司第七一一研究所 | Control method of marine SCR (selective catalytic reduction) system |
| CN204017667U (en) * | 2014-01-13 | 2014-12-17 | 广东清华中邦热能科技有限公司 | A kind of Novel SCR denitrating system |
| CN204672141U (en) * | 2015-05-28 | 2015-09-30 | 中国华电工程(集团)有限公司 | A kind of controllable type denitration reaction system |
| CN205540307U (en) * | 2016-01-22 | 2016-08-31 | 南通亚泰工程技术有限公司 | SCR flue gas flux governing system and reactor of marine diesel exhaust -gas disposal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252111A (en) * | 2019-06-05 | 2019-09-20 | 成都易态科技有限公司 | Flue gas cleaning treatment method |
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| CN105549633B (en) | 2019-12-10 |
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