CN105944562B - For marine exhaust denitrification apparatus - Google Patents
For marine exhaust denitrification apparatus Download PDFInfo
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- CN105944562B CN105944562B CN201610496135.0A CN201610496135A CN105944562B CN 105944562 B CN105944562 B CN 105944562B CN 201610496135 A CN201610496135 A CN 201610496135A CN 105944562 B CN105944562 B CN 105944562B
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- combustion chamber
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- reactor
- denitrification apparatus
- marine exhaust
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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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/002—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space spraying nozzle arranged within furnace openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
A kind of marine exhaust denitrification apparatus, including bleed air line, fuel tank, burner, gas inlet pipeline, combustion chamber, ejecting gun, reactor and exhaust gas outlet pipe road, bleed air line and fuel tank are connected by burner with combustion chamber, gas inlet pipeline is connected with combustion chamber, ejecting gun is located in combustion chamber, combustion chamber is connected by connecting line with reactor, exhaust gas outlet pipe road is located at side of the reactor far from combustion chamber and is connected with reactor, combustion chamber includes inner combustion chamber and exterior combustion chamber, inner combustion chamber is set in exterior combustion chamber, burner is set in inner combustion chamber, the communication port of gas inlet pipeline and combustion chamber is set in exterior combustion chamber, and gas inlet pipeline is corresponding with the position of the communication port of combustion chamber and the side wall of inner combustion chamber, inner combustion chamber passes through the open communication in inner combustion chamber with exterior combustion chamber.
Description
Technical field
The present invention relates to field of environment engineering, especially a kind of to be used for marine exhaust denitrification apparatus.
Background technology
As national governments are increasingly strict to the emission control in land traffic tool, thermal power plant, marine exhaust by
Gradually become one of the primary pollution source of global atmosphere pollution.Pollution of the marine exhaust pollutant to air in order to control, International Maritime
(IMO) is organized to formulate《Prevent ship from causing atmosphere pollution regular》(73/78 pact supplemental provisions VI of MARPOL), wherein the 13rd rules and regulations
It is fixed：2016 January 1 or the ship built later, if being navigated by water in ECA (emission control area), oxynitrides (NOX) discharge need
Meet Tier III standards.And Tier III standards NOXDischarge capacity is less than the one third of Tier II, for the prior art,
It only relies on the optimization of diesel engine in-cylinder combustion cannot achieve, it is therefore necessary to which exhaust aftertreatment device is installed.
Based on this background, SCR (Selective Catalytic Reduction, i.e. SCR technology) makees
For a kind of denitration technology of maturation, become the mainstream selection of exhaust gas denitration peculiar to vessel.Its principle is by spraying containing the water-soluble of ammonia
Liquid is as reducing agent, under the action of catalyst by NOXSelective reduction is nitrogen and water.According to the corresponding turbine of SCR reactors
The difference of booster position is divided into high pressure SCR system and low pressure SCR system.Its mesolow SCR system increases due to being mounted on turbine
Depressor rear has simple to install, influences small advantage on host, receives the extensive concern of external numerous producers.However it passes through
The temperature for crossing exhaust gas after turbocharger is relatively low, and the oxysulfide in exhaust gas easily generates hydrogen sulfate under cryogenic with ammonia
Ammonium, blocking catalyst hole, and then cause catalytic efficiency to reduce, crushing increase, influence SCR system normal operation.
To solve the problems, such as this, existing marine low-pressure SCR system mostly uses the mode that burner is arranged before reactor, to useless
Gas carries out reheating.In the prior art, combustion chamber is set in SCR system, and the air introduced by gas handling system is firing
It burns after Indoor Combustion generates high-temperature flue gas and is mixed with exhaust gas, exhaust gas is heated, however, the air inlet of exhaust gas is similarly disposed at
In combustion chamber, when exhaust gas enters combustion chamber, since exhaust gas has certain flow velocity, it is easy to the indoor flame that burns
It interferes, influences the stability of burning, cause efficiency of combustion to decline, flame is made to burn partially, or even burn combustion chamber wall surface, together
When, China Classification Society requires waste gas heater oil consumption less than 5% of oil consumption under host declared working condition, and the decline of efficiency of combustion is just
Mean to improve oil consumption, is difficult to low speed machine exhaust gas being heated to ideal temperature in defined oil consumption.
Invention content
The purpose of the present invention is to provide a kind of marine exhaust denitrification apparatus, which can stablize the flame of combustion chamber,
Improving combustion efficiency reduces oil consumption.
Example of the present invention provides a kind of marine exhaust denitrification apparatus, including bleed air line, fuel tank, burner, gas inlet
Pipeline, combustion chamber, ejecting gun, reactor and exhaust gas outlet pipe road, the bleed air line and the fuel tank pass through the burning
Device is connected with the combustion chamber, and the gas inlet pipeline is connected with the combustion chamber, and the ejecting gun is located at the combustion chamber
Interior, the combustion chamber is connected by connecting line with the reactor, and it is separate that the exhaust gas outlet pipe road is located at the reactor
The side of the combustion chamber is simultaneously connected with the reactor, and the combustion chamber includes inner combustion chamber and exterior combustion chamber, the internal combustion
Burn room be set in the exterior combustion chamber, the combustion chamber be set to the inner combustion chamber in, the gas inlet pipeline with it is described
The communication port of combustion chamber is set in exterior combustion chamber, and the position of the communication port of the gas inlet pipeline and the combustion chamber with
The side wall of inner combustion chamber corresponds to, and the inner combustion chamber passes through the open communication in the inner combustion chamber with the exterior combustion chamber.
Further, the inner combustion chamber is cylindrical shape, which seals and be fixed on the external combustion
It burns on room, the opening is formed on the end face of inner combustion chamber's other end.
Further, the length of inner combustion chamber's side wall is not less than the spray penetration of inner combustion chamber's flame.
Further, the side wall of the inner combustion chamber is the side wall made of high temperature resistant stainless steel material.
Further, the exterior combustion chamber is cylindrical shape, and the inner combustion chamber is coaxially disposed with the exterior combustion chamber, described
Inner combustion chamber is fixed on an end face of the exterior combustion chamber, and the communication port of the connecting line and the exterior combustion chamber is located at
On the exterior combustion chamber on the end face far from the inner combustion chamber side, the length of inner combustion chamber's side wall is less than the external combustion
Burn the length of room side wall.
Further, the exterior combustion chamber is also formed with contraction flow region close to the side of the reactor, and the contraction flow region is in
Truncated cone-shaped, from one end far from the reactor to close to one end of the reactor, the contraction flow region is perpendicular to the external combustion
The radius for burning the section of chamber axis tapers into.
Further, the communication port of the gas inlet pipeline and the exterior combustion chamber is located on the side wall of exterior combustion chamber,
The bleed air line with the axis of inner combustion chamber's connectivity part perpendicular to the gas inlet pipeline and the outer burning
The axis of room connectivity part.
Further, the ejecting gun is set on the exterior combustion chamber, and the jet port of the ejecting gun is located at external combustion
Burn the junction of room and connecting line, the jet port of the ejecting gun towards on the exterior combustion chamber close to the one of the reactor
Side.
Further, it is additionally provided with air preheater on the marine exhaust denitrification apparatus, the air preheater is set to
The exhaust gas outlet pipe road, the bleed air line are passed through out of described air preheater.
Further, the marine exhaust denitrification apparatus is additionally provided with bypass line, and the bypass line is communicated in described useless
Between gas air inlet pipeline and the exhaust gas outlet pipe road.
In conclusion the present invention passes through the side wall of inner combustion chamber by the way that combustion chamber is divided into inner combustion chamber and exterior combustion chamber
It prevents off-gas flows from being impacted to the flame in inner combustion chamber, reaches the flame of stable combustion chamber, improving combustion efficiency reduces
The purpose of oil consumption.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow the above and other objects, features and advantages of the present invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.
Description of the drawings
Fig. 1 is the structural schematic diagram of marine exhaust denitrification apparatus provided in an embodiment of the present invention.
Fig. 2 is the structural schematic diagram of combustion chamber in Fig. 1.
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, it is as follows that the present invention is described in detail.
The present invention provides a kind of marine exhaust denitrification apparatus, which can stablize the flame of combustion chamber, promotes burning effect
Rate reduces oil consumption.Fig. 1 is the structural schematic diagram of marine exhaust denitrification apparatus provided in an embodiment of the present invention, and Fig. 2 is to be fired in Fig. 1
The structural schematic diagram of room is burnt, as shown in Figures 1 and 2, marine exhaust denitrification apparatus provided in an embodiment of the present invention includes air entraining pipe
Road 11, fuel tank 21, burner 22, gas inlet pipeline 12, combustion chamber 30, ejecting gun 40, reactor 50 and exhaust gas outlet pipe
Road 13, bleed air line 11 and fuel tank 21 are connected by burner 22 with combustion chamber 30, and in the present embodiment, fuel is preferably bavin
The fuel oil such as oil, gas inlet pipeline 12 are connected with combustion chamber 30, and the exhaust gas that host 61 is generated introduces combustion chamber 30, injection
Rifle 40 is located in combustion chamber 30, and for spraying reducing agent solution, in the present embodiment, reducing agent solution is preferably urea liquid,
Combustion chamber 30 is connected by connecting line 14 with reactor 50, and exhaust gas enters reactor with the high-temperature flue gas generated in combustion chamber 30
Carry out denitration reaction after 50, exhaust gas outlet pipe road 13 be located at side of the reactor 50 far from combustion chamber 30 and with 50 phase of reactor
Even, the exhaust gas after denitration is discharged.In the present invention, combustion chamber 30 includes inner combustion chamber 31 and exterior combustion chamber 32, inner combustion chamber
31 are set in exterior combustion chamber 32, and burner 22 is set in inner combustion chamber 31, i.e., the air and fuel tank 21 that bleed air line 11 introduces
The fuel of introducing enters inner combustion chamber 31, flame burning in inner combustion chamber 31 of generation, gas inlet pipeline 12 and burning
The communication port of room 30 is set in exterior combustion chamber 32, and its position is corresponding with the side wall of inner combustion chamber 31, i.e. gas inlet pipeline 12
The exhaust gas of introducing can be sprayed on after entering exterior combustion chamber 32 on the side wall of inner combustion chamber 31, inner combustion chamber 31 far from bleed air line 11 with
It is equipped with opening 311 at 31 communication port of inner combustion chamber and is connected to exterior combustion chamber 32, high-temperature flue gas passes through opening 311 and exterior combustion chamber
Enter reactor after exhaust gas mixing in 32.
In the present invention, since burner 22 lights fuel, it is the burning in inner combustion chamber 31 to generate flame, and exhaust gas into
It is exterior combustion chamber 32 to enter initially entered when combustion chamber 30, and the side wall of inner combustion chamber 31 can stop off-gas flows, avoid
The flame that air-flow when exhaust gas enters combustion chamber 30 generates fuel combustion has an impact, therefore can stablize the fire of combustion chamber 30
Flame improves the efficiency of combustion of fuel, reduces oil consumption.In addition, exhaust gas can be directly sprayed onto inner combustion chamber 31 when entering combustion chamber 30
On side wall, turbulent vortices can be formed on the side wall of inner combustion chamber 31, exhaust gas and high temperature cigarette in inner combustion chamber 31 can be increased
The heat exchange efficiency of gas.
In the present embodiment, the side wall of inner combustion chamber 31 is the side wall made of high temperature resistant stainless steel material, can be by internal combustion
The outside that the heat in room 31 is transferred to rapidly inner combustion chamber 31 is burnt, inner combustion chamber 31 is preferably cylindrical shape, the columnar end
Portion one end seals, and is fixed on exterior combustion chamber 32, and the opening 311 that inner combustion chamber 31 is connected to exterior combustion chamber 32 is formed in internal combustion
On the end face for burning 31 other end of room, burner 22 and the communication port of inner combustion chamber 31 are located at inner combustion chamber 31 far from above-mentioned opening
The circle centre position of the end face of side at 311, the length of 31 side wall of inner combustion chamber are not less than the spray penetration of 31 flame of inner combustion chamber.
More specifically, exterior combustion chamber 32 is also substantially cylindrical, and inner combustion chamber 31 is coaxially disposed with exterior combustion chamber 32, interior
Combustion chamber 31 is fixed on an end face of exterior combustion chamber 32, and connecting line 14 and the communication port of exterior combustion chamber 32 are located at outer burning
On end face far from 31 side of inner combustion chamber on room 32, the length of 31 side wall of inner combustion chamber is less than the length of 32 side wall of exterior combustion chamber
Degree, i.e. exterior combustion chamber 32 is not achieved on the end face of 50 side of reactor in the side wall of inner combustion chamber 31, in inner combustion chamber 31
Opening 311 is formed in exterior combustion chamber 32 close to one end of reactor 50.In the present embodiment, proximal response is leaned on exterior combustion chamber 32
The side of device 50 is additionally provided with contraction flow region 321, and contraction flow region 321 is in truncated cone-shaped, from one end far from reactor 50 to close to reactor
50 one end, radius of the contraction flow region 321 perpendicular to the section of 32 axis of exterior combustion chamber taper into, it is preferable that close to reactor
The radius of the end face of 50 one end is identical as the radius of connecting line 14.
Gas inlet pipeline 12 and the communication port of exterior combustion chamber 32 are located on the side wall of exterior combustion chamber 32, in the present embodiment
In, bleed air line 11 with the axis of 31 connectivity part of inner combustion chamber and gas inlet pipeline 12 and 32 connectivity part of exterior combustion chamber
Axis is vertical, i.e., airflow direction when airflow direction when exhaust gas enters exterior combustion chamber 32 enters inner combustion chamber 31 with air is mutual
Vertically.
Further, in the present embodiment, ejecting gun 40 is set on exterior combustion chamber 32, and its jet port is located at outer burning
The junction of room 32 and connecting line 14, the jet port of ejecting gun 40 towards on exterior combustion chamber 32 close to the side of reactor 50.
The direct evaporation, decomposition of urea liquid that the setting can be sparged into combustion chamber 30, to eliminate the dress for making urea liquid decompose
It sets.
In the present embodiment, the end set of bleed air line 11 has the air-introduced machine 71 of bleed, air-introduced machine 71 to draw air
Enter bleed air line 11, in order to increase the temperature of introducing air while reduce oil consumption, is also set up on exhaust gas outlet pipe road 13 free
Air preheater 15, bleed air line 11 are passed through out of air preheater 15, are heated the air of introducing using the temperature of exhaust gas, heating
Air afterwards is blown into inner combustion chamber 31 by high-temperature blower 72.
In order to be sufficiently mixed the flue gas and reducing agent after exhaust gas, burning, it is additionally provided between combustion chamber 30 and reactor 50
Mixer 73.
Further, for the ease of controlling denitration process, reactor inlet valve is equipped between host 61 and combustion chamber 30
81, reactor outlet valve 82 is equipped between reactor 50 and air preheater 15.It is useless in ship provided in an embodiment of the present invention
Be additionally provided with bypass line 16 in gas denitrification apparatus, bypass line 16 be communicated in gas inlet pipeline 12 and exhaust gas outlet pipe road 13 it
Between, the communication port between bypass line 16 and gas inlet pipeline 12 is set between host 61 and reactor inlet valve 81, other
Communication port between siphunculus road 16 and exhaust gas outlet pipe road 13 is set between reactor 50 and air preheater 15, in bypass pipe
Bypass line control valve 83 is additionally provided on road 16.
Marine exhaust denitrification apparatus provided in an embodiment of the present invention further includes switch board 62, the first temperature sensor 91,
Two temperature sensors 92, third temperature sensor 93 and flowmeter 94, the first temperature sensor 91 and flowmeter 94 are set to and draw
On air pipe 11, and between air preheater 15 and high-temperature blower 72, second temperature sensor 92 is set to combustion chamber 30
On connecting line 14 between reactor 50, third temperature sensor 93 is set on exhaust gas outlet pipe road 13 and positioned at reaction
Between device 50 and air preheater 15.First temperature sensor 91, second temperature sensor 92, third temperature sensor 93 and stream
Gauge 94 is connected with switch board 62, and the result detected is transferred to switch board 62, and switch board 62 is according to the discharge of exhaust gas
Temperature in amount, each pipeline calculates the fuel consumption of burner 22 and the absorbing quantity of air-introduced machine 71, controls ship provided by the invention
Oceangoing ship exhaust gas denitration device carries out denitration operation.
When needing to carry out denitration operation, scavenging, combustion preheater, spray ammonia need to be passed through and shut down four processes.
The step of scavenging process, is as follows：Reactor inlet valve 81 and reactor outlet valve 82 are first turned on, bypass pipe is closed
Road control valve 83, for switch board 62 according to the discharge capacity of exhaust gas, the temperature parameter on each pipeline, primary Calculation goes out the consumption of burner 22
The absorbing quantity of oil mass and air-introduced machine 71, secondly, switch board 62 open air-introduced machine 71, and external ozone enters through air-introduced machine 71
Then air preheater 15 passes through high-temperature blower 72 and enters inner combustion chamber 31 and reactor 50, clears away marine exhaust denitrification apparatus
In original gas, finally pass through reactor outlet valve 82, air preheater 15 and be discharged into air.
The process of combustion preheater is as follows：After flowmeter 94 detects that the flow velocity of air reaches desired value and stablizes, combustion
Hopper 21 sprays fuel oil into inner combustion chamber 31, and switch board 62 starts the ignitor of burner 22, and fuel is in inner combustion chamber
Burning generates flame in 31, generates high-temperature flue gas, and high temperature gas flow flows to connecting line 14, exhaust gas gas inlet through inner combustion chamber 31
Pipeline 12 flows to connecting line 14 through exterior combustion chamber 32, since exhaust gas receives inner combustion chamber 31 when flowing into exterior combustion chamber 32
The blocking of side wall, therefore the flame in inner combustion chamber 31 will not be impacted, high-temperature gas and low temperature waste gas pass through mixer
73 are sufficiently mixed, and air is discharged by reactor 50 and air preheater 15, at this point, being sensed according to flowmeter 94, second temperature
The detected value of device 92, switch board 62 correct the absorbing quantity of oil burner fuel consumption and air-introduced machine 71.
It is as follows to spray ammonia process：After flowmeter 94 and third temperature sensor 93 reach desired value, ejecting gun 40 starts to spray
Urea liquid is penetrated, the high-temperature gas that urea liquid is generated with burner 22 directly meets, and evaporation, decomposition is reducing agent, carries reduction
The high-temperature gas of agent carries out denitration reaction after mixer 73 and low temperature waste gas are sufficiently mixed, into reactor 50, herein mistake
Cheng Zhong, the detected value dynamic that switch board 62 is detected according to second temperature sensor 92 adjust the oil consumption and air inducing of burner 22
The air quantity of machine 71 achievees the purpose that accurately control.
Shutdown process is as follows：Ejecting gun 40 stops the injection of urea liquid first, is then turned on bypass line control valve 83,
And reactor inlet valve 81 is closed, then stop the fuel delivery of burner 22, scavenging stops air-introduced machine 71 afterwards for a period of time, most
Reactor outlet valve 82 is closed afterwards.
By taking 300000DWT ultra large crude carrier as an example, main engine power 32970kW, exhaust gas temperature 236 after turbocharger
DEG C, exhaust gas flow 257500kg/h, host oil consumption 166.5g/kWh, when host exhaust gas is heated to 265 DEG C, in environment temperature 25
At DEG C, the oil consumption of traditional ship exhaust gas denitration device is 245.8kg/h, uses marine exhaust denitrification apparatus provided by the invention
Oil consumption is 218.5kg/h, saves fuel oil 27.3kg/h.
In conclusion marine exhaust denitrification apparatus provided by the invention is by dividing combustion chamber 30 for inner combustion chamber 31 and outer
Combustion chamber 32 prevents off-gas flows from being impacted to the flame in inner combustion chamber 31, reaches steady by the side wall of inner combustion chamber 31
Determine the flame of combustion chamber 30, improving combustion efficiency reduces the purpose of oil consumption.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above example, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of marine exhaust denitrification apparatus, including bleed air line (11), fuel tank (21), burner (22), exhaust inlet pipe
Road (12), combustion chamber (30), ejecting gun (40), reactor (50) and exhaust gas outlet pipe road (13), the bleed air line (11) and
The fuel tank (21) is connected by the burner (22) with the combustion chamber (30), the gas inlet pipeline (12) and institute
It states combustion chamber (30) to be connected, the ejecting gun (40) is located in the combustion chamber (30), and the combustion chamber (30) passes through connecting tube
Road (14) is connected with the reactor (50), and the exhaust gas outlet pipe road (13) is located at the reactor (50) far from the burning
The side of room (30) is simultaneously connected with the reactor (50), it is characterised in that：The combustion chamber (30) includes inner combustion chamber (31)
And exterior combustion chamber (32), the inner combustion chamber (31) are set in the exterior combustion chamber (32), the burner (22) is set to institute
It states in inner combustion chamber (31), the gas inlet pipeline (12) and the communication port of the combustion chamber (30) are set to exterior combustion chamber
(32) in, and the side of the gas inlet pipeline (12) and the position and inner combustion chamber (31) of the communication port of the combustion chamber (30)
Wall corresponds to, and the inner combustion chamber (31) is connected with the exterior combustion chamber (32) by the opening (311) on the inner combustion chamber (31)
It is logical.
2. marine exhaust denitrification apparatus according to claim 1, it is characterised in that：The inner combustion chamber (31) is cylinder
Shape, the columnar end one end seal and are fixed on the exterior combustion chamber (32), and the opening (311) is formed in described
On the end face of combustion chamber (31) other end.
3. marine exhaust denitrification apparatus according to claim 2, it is characterised in that：The length of inner combustion chamber (31) side wall
Spray penetration of the degree not less than the inner combustion chamber (31) flame.
4. marine exhaust denitrification apparatus according to claim 2, it is characterised in that：The side wall of the inner combustion chamber (31) is
The side wall made of high temperature resistant stainless steel material.
5. marine exhaust denitrification apparatus according to claim 2, it is characterised in that：The exterior combustion chamber (32) is cylinder
Shape, the inner combustion chamber (31) are coaxially disposed with the exterior combustion chamber (32), and the inner combustion chamber (31) is fixed on the external combustion
On an end face for burning room (32), the connecting line (14) and the communication port of the exterior combustion chamber (32) are located at the outer burning
On room (32) on the end face far from the inner combustion chamber (31) side, the length of inner combustion chamber (31) side wall is less than outside described
The length of combustion chamber (32) side wall.
6. marine exhaust denitrification apparatus according to claim 5, it is characterised in that：The exterior combustion chamber (32) is close to described
The side of reactor (50) is also formed with contraction flow region (321), and the contraction flow region (321) is in truncated cone-shaped, from far from the reactor
(50) one end is to close to one end of the reactor (50), and the contraction flow region (321) is perpendicular to the exterior combustion chamber (32) axis
The radius in the section of line tapers into.
7. marine exhaust denitrification apparatus according to claim 5, it is characterised in that：The gas inlet pipeline (12) and institute
The communication port for stating exterior combustion chamber (32) is located on the side wall of exterior combustion chamber (32), the bleed air line (11) with the interior burning
Axis with the exterior combustion chamber (32) connectivity part of the axis of room (31) connectivity part perpendicular to the gas inlet pipeline (12).
8. marine exhaust denitrification apparatus according to claim 5, it is characterised in that：The ejecting gun (40) is set to described
On exterior combustion chamber (32), and the jet port of the ejecting gun (40) is located at the connection of exterior combustion chamber (32) and connecting line (14)
Place, the jet port of the ejecting gun (40) towards on the exterior combustion chamber (32) close to the side of the reactor (50).
9. marine exhaust denitrification apparatus according to claim 1, it is characterised in that：On the marine exhaust denitrification apparatus also
Equipped with air preheater (15), the air preheater (15) is set on the exhaust gas outlet pipe road (13), the air entraining pipe
Road is passed through out of the air preheater (15).
10. marine exhaust denitrification apparatus according to claim 1, it is characterised in that：The marine exhaust denitrification apparatus is also
Equipped with bypass line (16), the bypass line (16) is communicated in the gas inlet pipeline (12) and the exhaust gas outlet pipe road
(13) between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610496135.0A CN105944562B (en) | 2016-06-28 | 2016-06-28 | For marine exhaust denitrification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610496135.0A CN105944562B (en) | 2016-06-28 | 2016-06-28 | For marine exhaust denitrification apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105944562A CN105944562A (en) | 2016-09-21 |
| CN105944562B true CN105944562B (en) | 2018-08-21 |
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ID=56902636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610496135.0A Active CN105944562B (en) | 2016-06-28 | 2016-06-28 | For marine exhaust denitrification apparatus |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108415265B (en) * | 2018-01-26 | 2021-04-30 | 青岛双瑞海洋环境工程股份有限公司 | Ship exhaust gas denitration function analog simulation system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1666065A (en) * | 2002-05-15 | 2005-09-07 | 普莱克斯技术有限公司 | Low NOx combustion |
| CN205948672U (en) * | 2016-06-28 | 2017-02-15 | 青岛双瑞海洋环境工程股份有限公司 | Be used for boats and ships waste gas denitrification facility |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10304489B4 (en) * | 2002-04-11 | 2014-07-31 | Das Environmental Expert Gmbh | Device for purifying exhaust gases containing fluorine-containing compounds in a low-nitrogen-oxide combustion reactor |
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2016
- 2016-06-28 CN CN201610496135.0A patent/CN105944562B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1666065A (en) * | 2002-05-15 | 2005-09-07 | 普莱克斯技术有限公司 | Low NOx combustion |
| CN205948672U (en) * | 2016-06-28 | 2017-02-15 | 青岛双瑞海洋环境工程股份有限公司 | Be used for boats and ships waste gas denitrification facility |
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| Publication number | Publication date |
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| CN105944562A (en) | 2016-09-21 |
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