CN115282753A - Ship exhaust gas desulfurization, denitrification and dust removal integrated device - Google Patents
Ship exhaust gas desulfurization, denitrification and dust removal integrated device Download PDFInfo
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- CN115282753A CN115282753A CN202210799643.1A CN202210799643A CN115282753A CN 115282753 A CN115282753 A CN 115282753A CN 202210799643 A CN202210799643 A CN 202210799643A CN 115282753 A CN115282753 A CN 115282753A
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- washing liquid
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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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/10—Venturi scrubbers
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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
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- 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
- B01D2258/012—Diesel engines and lean burn gasoline engines
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The present case provides a boats and ships waste gas desulfurization denitration dust removal integrated device, diesel engine exhaust waste gas gets into venturi and the contact of first atomizing nozzle spun washing liquid, gets into the spray column afterwards and meets baffling baffle and produce local reflux, after with second atomizing nozzle spun washing liquid contact reaction, carries out steam-water separation through the defroster, and gas is discharged by gas outlet, and the particulate matter after waste liquid and the venturi dust removal converges into the thick liquid pond. On one hand, by utilizing a wet oxidation technology, the washing liquid sprayed out of the spray tower has oxidability, and desulfurization and denitrification are realized. The baffling baffle avoids the blockage problem of a packing layer of the traditional spray tower, prolongs the retention time of the waste gas in the spray tower and fully contacts and reacts with the washing liquid. On the other hand, the turbulence strengthening phenomenon generated by the sudden contraction of the throat section of the venturi tube is utilized to tear and break the washing liquid into small liquid drops, and the small liquid drops are adsorbed and condensed with the particulate matters, so that the particulate matters are trapped and dedusted, and meanwhile, the waste gas is fully contacted with the washing liquid to rapidly cool.
Description
Technical Field
The invention belongs to the technical field of desulfurization, denitrification and dust removal of exhaust gas, and particularly relates to a desulfurization, denitrification and dust removal integrated device for ship exhaust gas.
Background
With the increasingly close trade connection among countries and the global deepening of the world economy, ocean transportation becomes the most important transportation mode for trade among countries. The diesel engine has the advantages of high power, high efficiency, good economic benefit and the like and is widely applied to the ship industry, but the low-quality fuel used by the ship diesel engine can generate a large amount of pollutants such as sulfur oxides (SOx), nitrogen oxides (NOx), carbon oxides (COx), hydrocarbon (CH), particulate Matters (PM) and the like, which not only can cause adverse effects on the global environment, but also can harm the health of human beings. In order to solve the problem of exhaust gas pollution of ships, which is becoming increasingly serious, international Maritime Organization (IMO) promulgated in 1997 as MARPOL73/78 convention VI by the "rules for preventing ship-caused atmospheric pollution", in which emission limits for SOx and NOx of ships are specified.
At present, the technology for removing single pollutants suitable for SOx and NOx is mature, has the advantages of high efficiency, good reliability and the like, and is a mainstream technology for treating ship exhaust gas. However, in the future, with further limits on the SOx and NOx emission in the ship exhaust gas by domestic and foreign regulations, desulfurization and denitration technologies need to be adopted simultaneously to realize that the ship exhaust gas simultaneously meets the SOx and NOx emission requirements. At the moment, the defects of large occupied space, high resistance of the compound equipment and mutual interference of the desulfurization and denitrification processes are highlighted by simple series connection of the desulfurization and denitrification devices, so that the economical efficiency and the reliability of the whole system are reduced. Therefore, the integrated desulfurization and denitrification treatment technology with small space occupation, low single equipment resistance and low waste gas treatment cost becomes a research hotspot of the ship waste gas emission control technology.
In order to solve the technical problem of simultaneously removing SOx and NOx from the marine exhaust gas, a plurality of scholars research the integrated technology of desulfurization and denitrification of the marine exhaust gas. The defects of the prior art are mainly reflected in that SOx and NOx are respectively removed by connecting desulfurization and denitrification devices in series, and the problems of complex whole system, large resistance, large occupied area and the like exist.
In addition, methods such as a low-temperature plasma generator and photocatalytic oxidation are adopted to oxidize SOx and NOx at present, but the technologies have the defects of immature research, excessive energy consumption and poor reliability; and thirdly, a particulate matter treatment device is lacked, and long-time system operation can cause the deposition and blockage of the particulate matters on each device, thereby influencing the normal operation of the device.
Therefore, how to overcome the above technical drawbacks is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a ship exhaust gas desulfurization, denitrification and dust removal integrated device which can realize desulfurization, denitrification and dust removal simultaneously, and has a compact structure and small occupied area.
In order to solve the technical problems, the invention provides a ship exhaust gas desulfurization, denitrification and dust removal integrated device, which comprises: the system comprises a diesel engine, a Venturi tube, a counter-flow spray tower, a baffling baffle, a slurry pool and a demister;
the gas vent of diesel engine pass through the exhaust pipe with venturi's air inlet intercommunication, venturi's inside is provided with the first atomizing nozzle that is used for spouting into the washing liquid, venturi's gas-liquid export with the gas-liquid entry intercommunication that lies in the bottom side on the counter-flow spray column, the inside of counter-flow spray column is provided with the second atomizing nozzle that is used for spouting into the washing liquid, and the top has been seted up gas outlet and the bottom is provided with the thick liquid pond that is used for holding the waste liquid, the defroster set up in counter-flow spray column's gas outlet department, be provided with the baffling baffle that is used for making waste gas produce local backward flow district in the counter-flow spray column.
Optionally, in the integrated device for desulfurization, denitrification and dust removal of marine exhaust gas, the baffle plates are arranged in a staggered manner in the height direction.
Optionally, in the integrated device for desulfurization, denitrification and dust removal of ship exhaust gas, a solid-liquid separator is further included, the slurry tank is communicated with the slurry separator, a slag outlet of the solid-liquid separator is communicated with the waste residue storage tank, and a liquid outlet of the solid-liquid separator is communicated with the waste liquid storage tank.
Optionally, in the integrated device for desulfurization, denitrification and dust removal of ship exhaust gas, a washing liquid storage tank for storing washing liquid is further included, a first outlet of the washing liquid storage tank is communicated with the first atomizing nozzle, and a second outlet of the washing liquid storage tank is communicated with the second atomizing nozzle.
Optionally, in the integrated apparatus for desulfurization, denitrification and dust removal of marine exhaust gas, a first washing liquid control pump and a first flowmeter are connected in series between the washing liquid storage tank and the first atomizing nozzle, and a second washing liquid control pump and a second flowmeter are connected in series between the washing liquid storage tank and the second atomizing nozzle.
Optionally, in the integrated apparatus for desulfurization, denitrification and dust removal of marine exhaust gas, a washing liquid control cabinet is further included, and is used for controlling the discharge capacities of the first washing liquid control pump and the second washing liquid control pump.
Optionally, in the integrated device for desulfurization, denitrification and dust removal of marine exhaust gas, the counter-flow spray tower is provided with a temperature sensor, and the washing liquid control cabinet is used for controlling the discharge capacities of the first washing liquid control pump and the second washing liquid control pump according to the actual load of the diesel engine and the temperature feedback of the temperature sensor.
Optionally, in the integrated device for desulfurization, denitrification and dust removal of marine exhaust gas, the first atomizing nozzle and the second atomizing nozzle are both annularly arranged.
Optionally, in the integrated device for desulfurization, denitrification and dust removal of marine exhaust gas, the first atomizing nozzle is arranged between the inlet and the throat of the venturi tube;
the second atomizing nozzle is arranged between the baffling baffle and the demister of the counter-flow spray tower.
Optionally, in the integrated device for desulfurization, denitrification and dust removal of marine exhaust gas, the demister is a corrugated plate demister.
The invention provides a ship waste gas desulfurization, denitrification and dust removal integrated device, which has the beneficial effects that:
inside diesel engine exhaust waste gas enters into venturi through exhaust pipe, with first atomizing nozzle spun washing liquid contact reaction, realize rapid cooling and the desorption of particulate matter, waste gas leaves venturi and enters into the counter-current flow type spray column afterwards, waste gas after through with second atomizing nozzle spun washing liquid contact reaction, realize further SOx/NOx control and remove dust, waste gas carries out steam-water separation through the defroster this moment, gas after steam-water separation is discharged by the gas outlet, the washing liquid produces during waste liquid and the particulate matter that venturi removed the dust after together converges the thick liquid pond with waste gas reaction later, wait for post processing.
According to the integrated device for desulfurization, denitrification and dust removal of the ship exhaust gas, on one hand, a sodium persulfate solution with oxidation property is sprayed in a counter-flow type spray tower by utilizing a wet oxidation technology, so that SOx and NOx can be oxidized and washed economically and efficiently, and finally the integrated removal of SOx and NOx is realized. The baffling baffles are alternately arranged on the tower body of the spray tower, so that the problems of easy blockage, need of periodic replacement and maintenance, high manufacturing cost and the like of a packing layer installed in the traditional spray tower are solved, the retention time of waste gas in the spray tower can be prolonged, the waste gas and washing liquid are in full contact reaction, and the removal efficiency of the whole system is improved.
On the other hand through install venturi additional before the counter-flow type spray column, make full use of venturi's simple structure, structural feature such as fluid resistance is little makes boats and ships waste gas contact with the washing liquid wherein, utilize the produced torrent of venturi throat cross-section shrink suddenly to strengthen the phenomenon, waste gas and washing liquid fully contact carry out rapid cooling, and can utilize the liquid drop, the liquid film or the bubble that the washing liquid that sprays generated to realize the entrapment of particulate matter in venturi, most particulate matter of desorption. The device can realize SOx/NOx control dust removal simultaneously, and overall device compact structure, area is little, is fit for narrow space on boats and ships and uses.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a desulfurization, denitrification and dust removal integrated device for ship exhaust gas provided by the invention.
In the upper diagram:
1-a diesel engine; 2-an exhaust pipeline; 3-a washing liquid storage tank; 4-washing liquid control cabinet; 5-a first wash liquor control pump; 6-a first flow meter; 7-a second wash liquor control pump; 8-a second flow meter; 9-a first atomizing nozzle; 10-a venturi tube; 11-a counter-flow spray tower; 12-baffle plate; 13-a second atomizing nozzle; 14-a demister; 15-slurry pond; 16-a solid-liquid separator; 17-a waste liquid storage tank; 18-waste residue storage tank.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is more than two, if there are first and second described for the purpose of distinguishing technical features, but not for indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the description of the present invention, unless otherwise specifically limited, terms such as set, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
The core of the invention is to provide a ship waste gas desulfurization, denitrification and dust removal integrated device, which can realize desulfurization, denitrification and dust removal simultaneously, and has compact structure and small occupied area.
In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Specifically referring to fig. 1, the invention provides a desulfurization, denitrification and dust removal integrated device for ship exhaust gas, which comprises a diesel engine 1, a venturi tube 10, a counter-flow spray tower 11, a baffle 12, a slurry tank 15 and a demister 14.
The concrete pipeline connection mode is as follows: the gas vent of diesel engine 1 passes through exhaust pipe 2 and venturi 10's air inlet intercommunication, venturi 10's inside is provided with the first atomizing nozzle 9 that is used for spouting into the washing liquid, venturi 10's gas-liquid export and the gas-liquid entry intercommunication that lies in the bottom side on the counterflow spray tower 11, counterflow spray tower 11's inside is provided with the second atomizing nozzle 13 that is used for spouting into the washing liquid, gas outlet and bottom have been seted up at the top and have been provided with the thick liquid pond 15 that is used for holding the waste liquid, defroster 14 sets up in counterflow spray tower 11's gas outlet department. In order to improve the sufficient contact reaction of the waste gas and the washing liquid in the counter-flow spray tower 11, a baffle plate 12 is arranged in the counter-flow spray tower.
It should be noted that the washing liquid is activated by sodium persulfate solution to generate free radicals with strong oxidizing property to remove SOx and NOx through oxidation.
Venturi 10 includes entrance, throat section, throat, flaring section and end connection section, utilizes the produced torrent of venturi 10 throat cross-section sudden contraction to strengthen the phenomenon, and boats and ships waste gas and washing liquid fully contact carry out rapid cooling, and the entrapment of the liquid drop, liquid film or the bubble that the washing liquid that utilize to spray generated realizes the particulate matter.
The waste gas can produce local backward flow district under the influence of baffling baffle 12, increases the turbulent kinetic energy of waste gas, prolongs the contact time with the washing liquid of second atomizing nozzle 13 spun, makes fully contact reaction between waste gas and the washing liquid.
The working principle is as follows: inside diesel engine 1 exhaust waste gas enters into venturi 10 through exhaust pipe 2, contact reaction with first atomizing nozzle 9 spun washing liquid, realize rapid cooling and the desorption of particulate matter, waste gas leaves venturi 10 and enters into reverse flow spray column 11 afterwards, waste gas produces local backward flow district under the influence of baffling baffle 12, increase waste gas turbulence energy, the contact time of extension and second atomizing nozzle 13 spun washing liquid, make abundant contact reaction between waste gas and the washing liquid, realize further desulfurization denitration dust removal, waste gas carries out steam-water separation through defroster 14 this moment, gas after the steam-water separation is discharged by the gas outlet, produce waste liquid and venturi 10 after the waste gas reaction after the washing liquid together inward-remittance thick liquid pond 15 with the particulate matter that condenses after removing dust, wait for post processing.
According to the integrated device for desulfurization, denitrification and dust removal of the ship exhaust gas, on one hand, a sodium persulfate solution with oxidation property is sprayed in the counter-flow type spray tower 11 by using a wet oxidation technology, so that SOx and NOx can be oxidized and washed economically and efficiently, and finally the integrated removal of SOx and NOx is realized. The baffling baffle plate 12 is arranged on the tower body of the counter-flow spray tower 11, so that the problems of easy blockage, need of periodic replacement and maintenance, high manufacturing cost and the like of a packing layer installed in the traditional spray tower are solved, the retention time of waste gas in the counter-flow spray tower 11 can be prolonged, the waste gas and washing liquid are in full contact reaction, and the removal efficiency of the whole system is improved.
On the other hand through install venturi 10 additional before counterflow spray tower 11, boats and ships waste gas contacts with the washing liquid wherein, utilizes the produced torrent of the throat cross-section sudden contraction of venturi 10 to strengthen the phenomenon, and waste gas and washing liquid fully contact carry out rapid cooling to can utilize the liquid drop, the liquid film or the bubble that the washing liquid that sprays generated to realize the entrapment of particulate matter in venturi 10, desorption most particulate matter. The device can realize SOx/NOx control dust removal simultaneously, and overall device compact structure, area is little, is fit for narrow space on boats and ships and uses.
In a further embodiment, the number of the baffle plates 12 is plural, the plural baffle plates 12 can be staggered in the height direction to form a circuitous gas flow passage, the gas flow flows from bottom to top in the counter-flow spray tower 11, the washing liquid sprayed from the second atomizing nozzle 13 flows from top to bottom, and the reaction effect can be improved by the counter-flow of the two mediums.
The baffling baffles 12 are alternately arranged on the tower body of the counter-flow type spray tower 11, so that airflow disturbance is further increased, a local reflux area is generated, the waste gas and the washing liquid are in full contact reaction, and the removal efficiency of the whole system is improved.
Of course, the baffle 12 may be arranged in other ways, and any arrangement that can achieve local backflow, increase gas turbulence energy, and prolong the contact time with the cleaning solution is within the scope of the present invention, and will not be further described herein.
In the embodiment, the invention also comprises a solid-liquid separator 16 communicated with the slurry pool 15, a slag outlet of the solid-liquid separator 16 is communicated with a waste residue storage tank 18, and a liquid outlet of the solid-liquid separator 16 is communicated with a waste liquid storage tank 17.
After the washing liquid reacts with the waste gas in the counter-flow spray tower 11, the generated waste liquid and the particles aggregated after the dust removal of the venturi tube 10 are converged into a slurry pool 15, then flow into a solid-liquid separator 16 through an outlet at the lower part of the counter-flow spray tower 11, the solid waste is filtered and then is introduced into a waste residue storage tank 18 for storage, and the waste liquid is introduced into a waste liquid storage tank 17 for storage.
The solid-liquid separator 16, the waste residue storage tank 18, and the waste liquid storage tank 17 are part of a waste treatment system, and can be disposed of separately after the ship is landed, thereby avoiding environmental problems caused by discharging waste liquid and waste residue directly to the ocean.
In a specific embodiment, the invention further comprises a washing liquid storage tank 3 for storing washing liquid, a first outlet of the washing liquid storage tank 3 is communicated with the first atomizing nozzle 9, and a second outlet of the washing liquid storage tank 3 is communicated with the second atomizing nozzle 13. The same liquid storage tank supplies washing liquid to the atomizing nozzles of two different devices, namely the Venturi tube 10 and the counter-flow spray tower 11, so that the number of the devices is effectively simplified, and the compactness of the devices is improved.
In addition to the above-described embodiments, a first cleaning liquid control pump 5 and a first flow meter 6 are connected in series between the cleaning liquid storage tank 3 and the first atomizing nozzle 9, and a second cleaning liquid control pump 7 and a second flow meter 8 are connected in series between the cleaning liquid storage tank 3 and the second atomizing nozzle 13. And ensuring that the liquid-gas ratio of the whole system is kept stable according to the reading of the flowmeter and the corresponding load exhaust volume of the diesel engine 1.
In addition, in a specific embodiment, the washing liquid control cabinet 4 is further included for controlling the displacement of the first washing liquid control pump 5 and the second washing liquid control pump 7.
Specifically, the counterflow spray tower 11 is provided with temperature sensor, and washing liquid switch board 4 is used for controlling the discharge capacity size of first washing liquid control pump 5 and second washing liquid control pump 7 according to the actual load of diesel engine 1 and temperature sensor's temperature feedback, and then the extravagant sodium persulfate solution jet capacity of accurate control, avoids the washing liquid extravagant, realizes high-efficient the utilization.
The cleaning solution is respectively delivered to a first atomizing nozzle 9 and a second atomizing nozzle 13 in a venturi tube 10 and a counter-flow spray tower 11 from a first cleaning solution control pump 5 and a second cleaning solution control pump 7 in a cleaning solution storage tank 3 through delivery pipelines, and the cleaning solution sprayed out of each atomizing nozzle is fully contacted and mixed with the waste gas, so that desulfurization, denitrification and dust removal are realized.
The cleaning solution control cabinet 4 is additionally arranged in the two conveying pipelines of the cleaning solution, the switches of the first cleaning solution control pump 5 and the second cleaning solution control pump 7 are controlled according to the actual load of the diesel engine 1 and the temperature feedback of the counter-flow type spray tower 11, the stability of the liquid-gas ratio in the counter-flow type spray tower 11 is ensured by reading the numerical values of the first flow meter 6 and the second flow meter 8 in the pipelines, the jet quantity of the cleaning solution is accurately controlled, and the high-efficiency and accurate spraying of the over-cleaning solution is realized.
In addition, for better realization atomizing and spraying effect, venturi tube 10 is vertically arranged, first atomizing nozzle 9 is arranged between the inlet and the throat of venturi tube 10, the arrangement angle of two adjacent first atomizing nozzles 9 can be 120 degrees, and the arrangement mode of equal included angles with other numerical values can be adopted, so that the liquid coverage rate is ensured to reach 200% at least.
A layer of second atomizing nozzles 13 are arranged between the baffle plate 12 and the demister of the counter-flow spray tower 11 and are arranged in an annular shape, the arrangement angle of two adjacent second atomizing nozzles 13 is 60 degrees, and the arrangement mode of equal included angles with other numerical values can be adopted, so that the liquid coverage rate is at least 300 percent, and the liquid-gas ratio is kept at 5L/m 3 。
In another embodiment, the demister 14 is a corrugated plate type demister with good anti-blocking, dust-removing and demisting effects, and can be made of high temperature resistant and corrosion resistant materials.
In the description, the embodiments are described in a progressive manner, the focus of each embodiment is on the difference from the other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a boats and ships waste gas SOx/NOx control dust removal integrated device which characterized in that includes: the system comprises a diesel engine, a Venturi tube, a counter-flow spray tower, a baffle plate, a slurry pool and a demister;
the gas vent of diesel engine pass through the exhaust pipe with venturi's air inlet intercommunication, venturi's inside is provided with the first atomizing nozzle that is used for spouting into the washing liquid, venturi's gas-liquid export with the gas-liquid entry intercommunication that lies in the bottom side on the counter-flow spray column, the inside of counter-flow spray column is provided with the second atomizing nozzle that is used for spouting into the washing liquid, and the top has been seted up gas outlet and the bottom is provided with the thick liquid pond that is used for holding the waste liquid, the defroster set up in counter-flow spray column's gas outlet department, be provided with the baffling baffle that is used for making waste gas produce local backward flow district in the counter-flow spray column.
2. The integrated device for desulfurization, denitrification and dedusting of marine exhaust gas according to claim 1, wherein the baffle plates are arranged in a staggered manner in the height direction.
3. The integrated device for desulfurization, denitrification and dedusting of marine exhaust gas according to claim 1, further comprising a solid-liquid separator communicated with the slurry tank, wherein a slag outlet of the solid-liquid separator is communicated with the waste residue storage tank, and a liquid outlet of the solid-liquid separator is communicated with the waste liquid storage tank.
4. The integrated device for desulfurization, denitrification and dedusting of marine exhaust gas according to claim 1, further comprising a washing liquid storage tank for storing washing liquid;
the first outlet of the washing liquid storage tank is communicated with the first atomizing nozzle, and the second outlet of the washing liquid storage tank is communicated with the second atomizing nozzle.
5. The integrated device for desulfurization, denitrification and dust removal of marine exhaust gas as recited in claim 4, wherein a first washing liquid control pump and a first flow meter are connected in series between said washing liquid storage tank and said first atomizing nozzle;
and a second washing liquid control pump and a second flowmeter are connected in series between the washing liquid storage tank and the second atomizing nozzle.
6. The integrated device for desulfurization, denitrification and dust removal of marine exhaust gas as claimed in claim 4, further comprising a washing liquid control cabinet for controlling the discharge capacity of the first washing liquid control pump and the second washing liquid control pump.
7. The integrated device for desulfurization, denitrification and dust removal of marine exhaust gas as recited in claim 6, wherein said counter-flow spray tower is provided with a temperature sensor, and said scrubbing liquid control cabinet is configured to control the displacement of said first scrubbing liquid control pump and said second scrubbing liquid control pump according to the actual load of said diesel engine and the temperature feedback of said temperature sensor.
8. The integrated device for desulfurization, denitrification and dedusting of marine exhaust gas according to claim 1, wherein the first atomizing nozzle and the second atomizing nozzle are both a plurality of nozzles arranged in a ring shape.
9. The integrated device for desulfurization, denitrification and dedusting of marine exhaust gas according to claim 1 or 8, wherein the first atomizing nozzle is arranged between the inlet and the throat of the venturi tube;
the second atomizing nozzle is arranged between the baffle plate and the demister of the counter-flow spray tower.
10. The integrated device for desulfurization, denitrification and dedusting of marine exhaust gas according to claim 1, wherein the demister is a corrugated plate demister.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210799643.1A CN115282753A (en) | 2022-07-08 | 2022-07-08 | Ship exhaust gas desulfurization, denitrification and dust removal integrated device |
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| CN202210799643.1A CN115282753A (en) | 2022-07-08 | 2022-07-08 | Ship exhaust gas desulfurization, denitrification and dust removal integrated device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009028622A (en) * | 2007-07-26 | 2009-02-12 | Mitsuru Ozawa | Carbon dioxide recovery apparatus |
| CN105289241A (en) * | 2015-09-24 | 2016-02-03 | 哈尔滨工程大学 | Combined desulphurization and denitration device and method of marine diesel engine |
| CN105833646A (en) * | 2016-05-04 | 2016-08-10 | 刘操 | Purification unit of self-protection industrial waste gas scrubbing tower |
| CN208493606U (en) * | 2018-07-04 | 2019-02-15 | 高峰 | Waste gas purification apparatus in a kind of production process of natural gas |
| CN114028914A (en) * | 2021-11-30 | 2022-02-11 | 中船动力研究院有限公司 | Flue gas circulating system |
-
2022
- 2022-07-08 CN CN202210799643.1A patent/CN115282753A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009028622A (en) * | 2007-07-26 | 2009-02-12 | Mitsuru Ozawa | Carbon dioxide recovery apparatus |
| CN105289241A (en) * | 2015-09-24 | 2016-02-03 | 哈尔滨工程大学 | Combined desulphurization and denitration device and method of marine diesel engine |
| CN105833646A (en) * | 2016-05-04 | 2016-08-10 | 刘操 | Purification unit of self-protection industrial waste gas scrubbing tower |
| CN208493606U (en) * | 2018-07-04 | 2019-02-15 | 高峰 | Waste gas purification apparatus in a kind of production process of natural gas |
| CN114028914A (en) * | 2021-11-30 | 2022-02-11 | 中船动力研究院有限公司 | Flue gas circulating system |
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