CN111792770B - Ship ballast water and tail gas desulfurization and denitrification integrated treatment system - Google Patents

Ship ballast water and tail gas desulfurization and denitrification integrated treatment system Download PDF

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CN111792770B
CN111792770B CN202010705698.2A CN202010705698A CN111792770B CN 111792770 B CN111792770 B CN 111792770B CN 202010705698 A CN202010705698 A CN 202010705698A CN 111792770 B CN111792770 B CN 111792770B
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ballast water
outlet
inlet
communicated
pipeline
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CN111792770A (en
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王廷勇
桑勋源
赵超
董如意
付洪田
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Sunrui Marine Environment Engineering Co ltd
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Sunrui Marine Environment Engineering Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C02F2001/422—Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/163—Nitrates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
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Abstract

The invention provides a desulfurization and denitrification integrated treatment system for ship ballast water and tail gas, which comprises a seawater inlet, a seawater pump, a hydrodynamic cavitation generator, an ozone machine, a pipeline type ultraviolet light sterilizer, a bubble tower, an ultrasonic emitter, a flue gas diffusion pipe, a flue gas outlet, an ultrasonic generator, a circulating pump, a dust remover, a flue gas inlet, at least one ballast water tank, a liquid discharge pump, a ballast water discharge pipeline and a denitrification device. The invention combines the advanced oxidation technology based on hydrodynamic cavitation, ultrasonic cavitation and ozone oxidation with ultraviolet sterilization to carry out integrated treatment of desulfurization and denitrification on the ship ballast water and tail gas, and simultaneously utilizes the unreacted OH and ozone in the ballast water to further oxidize and treat SO in the waste gasXAnd NOXBy oxidation of generated NO3 ‑And the waste gas and the ballast water discharged by the ship can meet the relevant requirements of IMO emission regulations through the removal of the denitration device.

Description

Ship ballast water and tail gas desulfurization and denitrification integrated treatment system
Technical Field
The invention relates to the technical field of ships, in particular to a ship ballast water and tail gas desulfurization and denitrification integrated treatment system.
Background
Shipping of ships takes 90% of the trade traffic worldwide, and the ships emit Sulfur Oxides (SO) during drivingX) And Nitrogen Oxide (NO)X) Causing serious pollution to the atmosphere and at the same time, causing the untreated discharge of the ballast water of the shipForeign species invasion has been the cause of adverse effects many times. In order to prevent air pollution caused by ship exhaust and invasion of foreign species by ballast water, International Maritime Organization (IMO) has already established a series of marine anti-pollution conventions to limit the discharge of ship exhaust and ballast water.
At present, SO in the tail gasXThe treatment means of (1) mainly comprises limestone/gypsum method, which uses limestone or quicklime as absorbent to treat SO2Absorbing and generating CaSO3Is converted into CaSO by oxidation4And the limestone is discharged later, but the method has large initial investment, large floor area and large byproduct yield, and a large amount of limestone needs to be stored on the ship. Seawater method for removing SO in flue gas by using self alkalinity2The method effectively saves fresh water resources, and absorbed sulfur dioxide is converted into sulfate which can be directly discharged into seawater, so that the problem of waste treatment does not exist. Sodium-alkali method for absorbing SO by using NaOH2Generation of Na2SO3By oxidation to harmless Na2SO4And (4) discharging or recycling, wherein the method is successfully applied to the desulfurization treatment of the tail gas of the ship.
NO in tail gasXThe treatment means mainly comprises an SCR (selective catalytic reduction) method, which is the most widely applied and mature flue gas denitration technology at present, but the method has high investment and operation cost, needs to be provided with a large amount of catalyst and urea, and needs to pay attention to prevent catalyst poisoning and failure. Oxidation absorption method for oxidizing and absorbing NO by using oxidantXFirst generation of NO3 -After to NO3 -Performing an absorption treatment, but such as H2O2、O3、NaClO2The consumption of the oxidizing agents is high.
Ballast water treatment technologies mainly comprise an electrolytic method, an ozone method, an ultraviolet method and the like, but the electrolytic method has high energy consumption and strong corrosion to equipment; the ultraviolet method is greatly influenced by the turbidity of the seawater; the ozone method has the problems of large occupied space and high energy consumption.
The ship ballast water treatment technology and the tail gas desulfurization and denitration technology are mature engineering applications at present, and the treatment cost of a single pollutant isWithin acceptable limits, but when the ship needs to be equipped with three types of processing equipment, the occupied ship space and the cost for the equipment are greatly increased. Considering ballast water and SOX、NOXCan adopt an oxidation method for treatment, so that the technology of simultaneously treating ballast water and desulfurizing and denitrating tail gas by using an advanced oxidation method has the possibility of application. The advanced oxidation method is characterized by generating hydroxyl free radicals (OH) with strong oxidation capacity, and can oxidize macromolecular nondegradable organic matters into low-toxic or nontoxic micromolecular substances, and the main technical means comprise ozone oxidation, hydrodynamic cavitation, ultrasonic cavitation and the like. The ozone oxidation method can directly oxidize the treated object by ozone and can also oxidize the treated object by OH generated by decomposition of the treated object, but when the sewage is treated by ozone, the treated object cannot be quickly dissolved into the water solution because of poor mass transfer effect with the water solution, so that the treatment effect is not ideal. The hydraulic cavitation reduces the pressure of the fluid at the throttling position to be below the saturated vapor pressure by utilizing the throttling element to generate cavitation bubbles, when the fluid flows through the throttling element, the cavitation bubbles are broken along with the rise of the pressure, OH is generated, the hydraulic cavitation is an oxidation technology without secondary pollution, the unique generation mode enables the fluid to have high turbulence intensity, and therefore ozone is introduced into a hydraulic cavitation section, the mass transfer effect of the ozone can be enhanced, and the oxidation effect of the ozone is further enhanced. Ultrasonic cavitation is to use ultrasonic wave to instantly generate high temperature and high pressure in a tiny area and generate OH to remove organic matters difficult to degrade, and the treatment effect is good.
A technology for treating NOx in ship tail gas by using hydrodynamic cavitation to strengthen chlorine dioxide oxidation is disclosed in a patent of a device for removing nitric oxide in ship tail gas by using hydrodynamic cavitation to strengthen chlorine dioxide (patent No. CN109395586A), and an ultrasonic integrated desulfurization, denitrification and demercuration method and a device thereof (patent No. CN101337153B) are disclosed in a patent of an ultrasonic cavitation oxidation treatment for treating SO in flue gasXAnd NOXThe patent "a high-flow active oxygen cooperated with hydrodynamic cavitation advanced oxidation device" (patent No. CN209276195U) discloses a treatment technology for treating sewage such as ship ballast water and organic wastewater by hydrodynamic cavitation oxidation, but none of the above patents realizes the utilization of advanced oxygenThe chemical technology is used for carrying out integrated treatment of desulfurization and denitrification on the ship ballast water and the tail gas.
Disclosure of Invention
The invention aims to provide an integrated treatment system for desulfurization and denitrification of ship ballast water and tail gas, which aims to overcome the defects in the prior art, not only can effectively treat the ship ballast water and carry out desulfurization and denitrification on the tail gas, but also does not occupy too much space of a ship and has lower matched cost.
The invention provides a desulfurization and denitrification integrated treatment system for ship ballast water and tail gas, which comprises a seawater inlet, a seawater pump, a hydrodynamic cavitation generator, an ozone machine, a pipeline type ultraviolet sterilizer, a bubble tower, an ultrasonic emitter, a flue gas diffusion pipe, a flue gas outlet, an ultrasonic generator, a circulating pump, a dust remover, a flue gas inlet, at least one ballast water tank, a liquid discharge pump, a ballast water discharge pipeline and a denitrification device, wherein the seawater pump is connected with the seawater pump;
the seawater inlet is communicated with an inlet of the seawater pump, an outlet of the seawater pump is communicated with an inlet of the hydrodynamic cavitation generator, an outlet of the hydrodynamic cavitation generator is communicated with an inlet of the pipeline type ultraviolet sterilizer, an ozone filling port is arranged on an outlet pipeline of the hydrodynamic cavitation generator, an outlet of the ozone machine is communicated with the ozone filling port, a bubble tower seawater inlet is arranged on the bubble tower, an outlet of the pipeline type ultraviolet sterilizer is communicated with the seawater inlet of the bubble tower, the ultrasonic emitter is positioned in the bubble tower and immersed in the seawater, the ultrasonic generator is connected with the ultrasonic emitter, an outlet at the bottom of the bubble tower is communicated with an inlet of the circulating pump, an outlet of the circulating pump is communicated with an inlet of the at least one ballast water tank, and an outlet of the at least one ballast water tank is divided into two paths, one path is communicated with an inlet of the liquid discharge pump, an outlet of the liquid discharge pump is communicated with the ballast water discharge pipeline, and the other path is communicated to a pipeline between the seawater inlet and the seawater pump;
the flue gas diffusion pipe is positioned at the bottom in the bubble tower, the flue gas inlet is communicated with the inlet of the dust remover, the outlet pipeline of the dust remover penetrates through the bubble tower and is communicated with the flue gas diffusion pipe, and the top outlet of the bubble tower is communicated with the flue gas outlet;
the denitration device is arranged on a pipeline between the circulating pump and the at least one ballast water tank or a pipeline between the dust remover and the flue gas diffusion pipe.
The seawater pump further comprises a buffer tank, wherein an inlet of the buffer tank is communicated to a pipeline between the circulating pump and the at least one ballast water tank, and an outlet of the buffer tank is communicated to a pipeline between the seawater inlet and the seawater pump.
The system further comprises a bubble column bypass pipeline, wherein one end of the bubble column bypass pipeline is communicated with an outlet of the circulating pump, and the other end of the bubble column bypass pipeline is communicated to the upper position of the bubble column.
Further, the denitration device is an anion exchange resin exchanger which is arranged on a pipeline between the circulating pump and the at least one ballast water tank; or the denitration device is an SCR denitration device, and the SCR denitration device is arranged on a pipeline between the dust remover and the flue gas diffusion pipe.
Furthermore, the number of the hydrodynamic cavitation generators is multiple, the hydrodynamic cavitation generators are arranged in parallel, inlets of the hydrodynamic cavitation generators are communicated with an outlet of the seawater pump after being converged, outlets of the hydrodynamic cavitation generators are communicated with an inlet of the pipeline type ultraviolet light sterilizer after being converged, one ozone injection port is arranged at a position, close to the outlet of the hydrodynamic cavitation generator, of a branch pipeline where each hydrodynamic cavitation generator is located, and an outlet of the ozone machine is communicated with the plurality of ozone injection ports simultaneously.
Furthermore, the position of the seawater inlet of the bubble tower is 0.5-1 m lower than the highest liquid level of the bubble tower.
Furthermore, a three-way regulating valve is arranged on a pipeline between the circulating pump and the at least one ballast water tank, the number of the at least one ballast water tank is two, the at least one ballast water tank comprises a first ballast water tank and a second ballast water tank, an outlet of the circulating pump is respectively communicated with inlets of the first ballast water tank and the second ballast water tank through the three-way regulating valve, an outlet of the first ballast water tank is divided into two paths, one path is communicated with an inlet of the liquid discharge pump, and the other path is communicated to a pipeline between the seawater inlet and the seawater pump; the outlet of the second ballast water tank is divided into two paths, one path is communicated with the inlet of the liquid discharge pump, and the other path is communicated to a pipeline between the seawater inlet and the seawater pump.
The system further comprises a seawater inlet filter, a bubble column outlet filter, a first ballast water tank outlet filter and a second ballast water tank outlet filter, wherein the seawater inlet is communicated with an inlet of the seawater inlet filter, an outlet of the seawater inlet filter is communicated with an inlet of the seawater pump, a bottom outlet of the bubble column is communicated with an inlet of the bubble column outlet filter, and an outlet of the bubble column outlet filter is communicated with an inlet of the circulating pump; the outlet of the first ballast water tank is communicated with the inlet of the first ballast water tank outlet filter, the outlet of the first ballast water tank outlet filter is divided into two paths, one path is communicated with the inlet of the liquid discharge pump, and the other path is communicated to a pipeline between the seawater inlet and the seawater pump; the outlet of the second ballast water tank is communicated with the inlet of the second ballast water tank outlet filter, and the outlet of the second ballast water tank outlet filter is divided into the two paths.
Furthermore, a first check valve is arranged on a pipeline between the sea water pump and the hydrodynamic cavitation generator, a second check valve is arranged on a pipeline between the circulating pump and the at least one ballast water tank, a third check valve is arranged on a pipeline between the dust remover and the flue gas diffusion pipe, and a fourth check valve is arranged on a pipeline between the liquid discharge pump and the ballast water discharge pipeline.
Furthermore, each pipeline is also provided with a control valve.
The invention provides a desulfurization and denitrification integrated treatment system for ship ballast water and tail gas,the advanced oxidation technology based on hydrodynamic cavitation, ultrasonic cavitation and ozone oxidation is combined with ultraviolet light sterilization to carry out integrated treatment of desulfurization and denitrification on ship ballast water and tail gas, and a hydrodynamic cavitation generator is utilized to generate hydrodynamic cavitation, so that the mass transfer effect of ozone in ballast water is enhanced, and further the oxidation effect of ozone is enhanced; simultaneously utilizes the unreacted OH and ozone in the ballast water to further oxidize and treat SO in the waste gasXAnd NOXBy oxidation of generated NO3 -And the waste gas and ballast water discharged by the ship can meet the relevant requirements of IMO emission regulations by removing through a denitration device.
Meanwhile, the traditional ballast water treatment and waste gas desulfurization and denitration treatment are realized by using one set of system, the occupied space is small, the ship space and the investment cost are saved, and the integrated treatment system only needs to consume electric energy without adding extra chemicals and cannot cause secondary pollution.
Drawings
Fig. 1 is a schematic structural diagram of a desulfurization and denitrification integrated treatment system for ship ballast water and tail gas according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a desulfurization and denitrification integrated treatment system for ship ballast water and tail gas according to a second embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
First embodiment
As shown in fig. 1, the integrated treatment system for desulfurization and denitrification of ballast water and exhaust gas of a ship according to the first embodiment of the present invention includes a seawater inlet 1, a seawater pump 2, a hydrodynamic cavitation generator 5, an ozone machine 7, a tubular ultraviolet light sterilizer 8, a bubble column 10, an ultrasonic emitter 11, a flue gas diffusion pipe 13, a flue gas outlet 15, an ultrasonic generator 16, a circulation pump 17, a dust remover 19, a flue gas inlet 20, at least one ballast water tank 22/23, a drainage pump 24, a ballast water discharge pipeline 29, and a denitrification apparatus;
the seawater inlet 1 is communicated with the inlet of a seawater pump 2, the outlet of the seawater pump 2 is communicated with the inlet of a hydrodynamic cavitation generator 5, the outlet of the hydrodynamic cavitation generator 5 is communicated with the inlet of a pipeline type ultraviolet light sterilizer 8, an ozone filling port 6 is arranged on an outlet pipeline of the hydrodynamic cavitation generator 5, the outlet of an ozone machine 7 is communicated with the ozone filling port 6, a bubble tower seawater inlet 9 is arranged on a bubble tower 10, the outlet of the pipeline type ultraviolet light sterilizer 8 is communicated with the bubble tower seawater inlet 9, an ultrasonic wave emitter 11 is positioned in the bubble tower 10 and is immersed in seawater, an ultrasonic wave generator 16 is connected with the ultrasonic wave emitter 11, the outlet at the bottom of the bubble tower 10 is communicated with the inlet of a circulating pump 17, the outlet of the circulating pump 17 is communicated with the inlet of at least one ballast water tank 22/23, the outlet of the at least one ballast water tank 22/23 is divided into two paths, one path is communicated with the inlet of the drainage pump 24, the outlet of the drainage pump 24 is communicated with the ballast water discharge pipeline 29, and the other path is communicated to the pipeline between the seawater inlet 1 and the seawater pump 2;
the flue gas diffusion pipe 13 is positioned at the bottom position in the bubble tower 10, the flue gas inlet 20 is communicated with the inlet of the dust remover 19, the outlet pipeline of the dust remover 19 penetrates through the bubble tower 10 and is communicated with the flue gas diffusion pipe 13, and the top outlet of the bubble tower 10 is communicated with the flue gas outlet 15;
the denitration device is provided on the line between the circulation pump 17 and the at least one ballast water tank 22/23 or on the line between the dust separator 19 and the flue gas diffusion pipe 13.
Further, the integrated treatment system further comprises a buffer tank 4, wherein an inlet of the buffer tank 4 is communicated to a pipeline between the circulating pump 17 and the at least one ballast water tank 22/23, and an outlet of the buffer tank 4 is communicated to a pipeline between the seawater inlet 1 and the seawater pump 2.
Further, the integrated treatment system further comprises a bubble column bypass pipeline 12, wherein one end of the bubble column bypass pipeline 12 is communicated with an outlet of the circulating pump 17, and the other end of the bubble column bypass pipeline 12 is communicated to the upper position of the bubble column 10.
Further, the integrated treatment system further comprises a discharge line 14, the discharge line 14 being in communication with an outlet of the circulation pump 17.
Further, in the present embodiment, the denitration device is an anion exchange resin exchanger 18, and the anion exchange resin exchanger 18 is disposed on the pipeline between the circulation pump 17 and the at least one ballast water tank 22/23.
Furthermore, the number of the hydrodynamic cavitation generators 5 is multiple, the hydrodynamic cavitation generators 5 are arranged in parallel, inlets of the hydrodynamic cavitation generators 5 are communicated with an outlet of the seawater pump 2 after being converged, outlets of the hydrodynamic cavitation generators 5 are communicated with an inlet of the pipeline type ultraviolet light sterilizer 8 after being converged, an ozone injection port 6 is arranged at a position, close to the outlet of the hydrodynamic cavitation generator 5, of a branch pipeline where each hydrodynamic cavitation generator 5 is located, and an outlet of the ozone machine 7 is communicated with the ozone injection ports 6.
Further, a pressure gauge 3 is arranged on the branch pipeline where each hydrodynamic cavitation generator 5 is located and at the position close to the inlet of the hydrodynamic cavitation generator 5.
Preferably, the position of the seawater inlet 9 of the bubble column is 0.5-1 m lower than the highest liquid level of the bubble column 10.
Furthermore, a three-way regulating valve 21 is arranged on a pipeline between the circulating pump 17 and the at least one ballast water tank 22/23, in this embodiment, the number of the at least one ballast water tank 22/23 is two, and the at least one ballast water tank includes a first ballast water tank 22 and a second ballast water tank 23, an outlet of the circulating pump 17 is respectively communicated with inlets of the first ballast water tank 22 and the second ballast water tank 23 through the three-way regulating valve 21, an outlet of the first ballast water tank 22 is divided into two paths, one path is communicated with an inlet of the drainage pump 24, and the other path is communicated with a pipeline between the seawater inlet 1 and the seawater pump 2; the outlet of the second ballast water tank 23 is divided into two paths, one path is communicated with the inlet of the liquid discharge pump 24, and the other path is communicated to a pipeline between the seawater inlet 1 and the seawater pump 2. In an actual ship, the number of the ballast water tanks may be plural, and this embodiment is only for illustrating the connection relationship, and the number of the ballast water tanks is not limited herein.
Further, the integrated treatment system further comprises a seawater inlet filter 261, a bubble column outlet filter 262, a first ballast water tank outlet filter 263 and a second ballast water tank outlet filter 264, wherein a seawater inlet 1 is communicated with an inlet of the seawater inlet filter 261, an outlet of the seawater inlet filter 261 is communicated with an inlet of a seawater pump 2, a bottom outlet of the bubble column 10 is communicated with an inlet of the bubble column outlet filter 262, and an outlet of the bubble column outlet filter 262 is communicated with an inlet of a circulating pump 17; the outlet of the first ballast water tank 22 is communicated with the inlet of the first ballast water tank outlet filter 263, the outlet of the first ballast water tank outlet filter 263 is divided into two paths, one path is communicated with the inlet of the liquid discharge pump 24, and the other path is communicated to a pipeline between the seawater inlet 1 and the seawater pump 2; the outlet of the second ballast water tank 23 is communicated with the inlet of the second ballast water tank outlet filter 264, and the outlet of the second ballast water tank outlet filter 264 is divided into two paths, i.e. one path of the outlet of the second ballast water tank outlet filter 264 is communicated with the inlet of the drainage pump 24, and the other path is communicated to the pipeline between the seawater inlet 1 and the seawater pump 2.
Further, a first check valve 281 is arranged on a pipeline between the sea water pump 2 and the hydrodynamic cavitation generator 5, a second check valve 282 is arranged on a pipeline between the circulating pump 17 and the at least one ballast water tank 22/23, a third check valve 283 is arranged on a pipeline between the dust remover 19 and the flue gas diffusion pipe 13, and a fourth check valve 284 is arranged on a pipeline between the drain pump 24 and the ballast water discharge pipeline 29.
Further, a first water quality analyzer 271 is arranged on a pipeline between the seawater inlet 1 and the seawater inlet filter 261, a second water quality analyzer 272 is arranged on a main pipeline in front of the liquid discharge pump 24, a third water quality analyzer 273 is arranged on a main pipeline behind the circulating pump 17, a first flue gas analyzer 274 is arranged on a pipeline between the dust remover 19 and the flue gas diffusion pipe 13, and a second flue gas analyzer 275 is arranged on a pipeline between the top outlet of the bubble column 10 and the flue gas outlet 15.
Further, a first residual pipe 55 is provided at the bottom of the buffer tank 4, and a second residual pipe 56 is provided on the main line after the first check valve 281. When the system stops running, residual liquid in the system can be discharged through the residual discharge pipe.
Furthermore, each pipeline is also provided with a control valve.
Specifically, a first control valve 31 is arranged on a pipeline between the seawater inlet 1 and the seawater inlet filter 261, a second control valve 32 is arranged on a branch pipeline where the first water quality analyzer 271 is arranged, a third control valve 33 is arranged on the second residue discharge pipe 56, a fourth control valve 34 is arranged on a main pipeline between the first check valve 281 and the pressure gauge 3, a fifth control valve 35 is arranged on a branch pipeline where each hydrodynamic cavitation generator 5 is arranged at a position close to the inlet of the hydrodynamic cavitation generator 5, a sixth control valve 36 is arranged on a branch pipeline between the ozone machine 7 and each ozone injection port 6, a seventh control valve 37 is arranged on a pipeline between the outlet filter 262 of the bubble tower and the circulating pump 17, an eighth control valve 38 is arranged on a branch pipeline where the second flue gas analyzer 275 is arranged, and a ninth control valve 39 is arranged on a pipeline between the top outlet of the bubble tower 10 and the flue gas outlet 15, a tenth control valve 40 is arranged on the bubble column bypass pipeline 12, an eleventh control valve 41 is arranged on a pipeline between the dust remover 19 and the third check valve 283, a twelfth control valve 42 is arranged on a branch pipeline where the first flue gas analyzer 274 is arranged, a thirteenth control valve 43 is arranged on a branch pipeline where the third water quality analyzer 273 is arranged, a fourteenth control valve 44 is arranged on a branch pipeline where the discharge pipeline 14 is arranged, a fifteenth control valve 45 is arranged on a branch pipeline in front of the three-way regulating valve 21, a sixteenth control valve 46 is arranged on an inlet pipeline of the buffer tank 4, a seventeenth control valve 47 is arranged on the first residual discharge pipe 55, an eighteenth control valve 48 is arranged on an outlet pipeline of the buffer tank 4, a nineteenth control valve 49 is arranged on a branch pipeline of the first ballast water tank outlet filter 263 leading to the sea water pump 2, and a twentieth control valve 50 is arranged on a branch pipeline of the first ballast water tank outlet filter 263 leading to the liquid discharge pump 24, a twenty-first control valve 51 is provided on a branch line of the second ballast tank outlet filter 264 leading to the sea water pump 2, a twenty-second control valve 52 is provided on a branch line of the second ballast tank outlet filter 264 leading to the drainage pump 24, a twenty-third control valve 53 is provided on a branch line of the second water quality analyzer 272, and a twenty-fourth control valve 54 is provided on a line between the ballast water discharge line 29 and the fourth check valve 284.
The seawater pump 2 is used to pump seawater into the integrated treatment system and pressurize the seawater to flow to the hydrodynamic cavitation generator 5 downstream of the seawater pump 2.
Sea water import 1 department is equipped with sea water import filter 261 for the impurity in the filtration sea water, and simultaneously, sea water import 1 department installs first water quality analyzer 271, is used for detecting the pollutant concentration in the sea water, can control opening and close of water quality monitoring pipeline through second control flap 32.
The hydrodynamic cavitation generator 5 can be a cavitation generator such as an orifice plate or a venturi tube, and is used for generating a cavitation effect, the hydrodynamic cavitation generator 5 generates cavitation bubbles in the seawater through hydrodynamic cavitation, and the seawater is sterilized by using high-intensity energy and hydroxyl radicals (OH) generated after the cavitation bubbles are collapsed. The upstream of the hydrodynamic cavitation generator 5 is provided with a pressure gauge 3 for monitoring the pipeline pressure so that the pipeline pressure meets the requirement of hydrodynamic cavitation. The pipeline where the hydrodynamic cavitation generator 5 is located can be installed in a parallel connection mode, and then the treatment effect of hydrodynamic cavitation is improved by increasing the number of the hydrodynamic cavitation generators 5, in the embodiment, the three pipelines are installed in a parallel connection mode, and in the actual use process, the number of the hydrodynamic cavitation generators 5 used in the system can be adjusted by increasing or decreasing the hydrodynamic cavitation pipelines or controlling the fifth control valve 35 on the upstream of the hydrodynamic cavitation generator 5. Meanwhile, the pressure at the upstream of the hydrodynamic cavitation generator 5 can be adjusted by adjusting the opening of the fifth control valve 35 and the lift of the seawater pump 2, so as to control the hydrodynamic cavitation intensity.
An ozone injection port 6 is arranged at the downstream of each hydrodynamic cavitation generator 5, ozone produced by an ozone machine 7 enters a pipeline where the hydrodynamic cavitation generator 5 is located through the ozone injection port 6, and the mass transfer effect of the ozone and the seawater is enhanced by utilizing the high turbulence intensity at the downstream of the hydrodynamic cavitation generator 5, so that the sterilization effect of the ozone on the seawater is enhanced. Preferably, the ozone injection port 6 is arranged within 5-30 cm of the downstream of the hydrodynamic cavitation generator 5, so that the mass transfer effect of ozone and seawater can be better promoted by the high turbulence intensity generated by hydrodynamic cavitation. The ozone generator 7 can be an air source type or an oxygen source type, and preferably, the ozone generator 7 is an oxygen source type.
The pipeline type ultraviolet sterilizer 8 is arranged at the downstream of the ozone injection port 6 and is positioned on a collecting pipe of the parallel pipelines where the hydrodynamic cavitation generator 5 is positioned, and further sterilizes the seawater through ultraviolet light.
The bubble tower 10 is located at the downstream of the pipeline type ultraviolet sterilizer 8, seawater enters the bubble tower 10 through a bubble tower seawater inlet 9, the seawater level in the bubble tower 10 needs to be higher than the bubble tower seawater inlet 9, and preferably, the bubble tower seawater inlet 9 is located at a position 0.5-1 m below the highest seawater level in the bubble tower 10, so that residual OH and ozone in the seawater can be better dissolved into the seawater in the bubble tower 10 and have a space for sufficient reaction with the waste gas from the flue gas diffusion pipe 13.
The ultrasonic emitter 11 is immersed in the seawater in the bubble column 10, and the ultrasonic waves generated by the ultrasonic generator 16 are released into the seawater in the bubble column 10 through the ultrasonic emitter 11 to generate ultrasonic cavitation and sterilize the seawater.
A flue gas diffusion pipe 13 is arranged at the bottom position in the bubble column 10, the waste gas is uniformly dispersed by the flue gas diffusion pipe 13 and then enters the bubble column 10, and residual ozone in the seawater, OH generated by ultrasonic cavitation and hydrodynamic cavitation are used for treating SO in the waste gasX、NOXOxidation treatment is carried out to generate SO4 2-And NO3 -And dissolved in seawater. Meanwhile, residual ozone in the seawater, OH generated by ultrasonic cavitation and hydrodynamic cavitation can also be used for carrying out oxidation treatment on PAHS (polycyclic aromatic hydrocarbon) in the waste gas.
The exhaust gas injected into the bubble column 10 is first subjected to dust removal by a dust remover 19 to filter out as much particulate matter as possible from the exhaust gas. Downstream of the dust separator 19, a first flue gas analyzer 274 is provided for detecting the content of pollutants in the exhaust gas. A third check valve 283 is provided downstream of the first flue gas analyzer 274 to prevent seawater in the bubble column 10 from back flowing into the waste gas line. The exhaust gas treated by the bubble column 10 is discharged from the flue gas outlet 15 at the top of the bubble column 10, and meanwhile, a second flue gas analyzer 275 is installed on a pipeline of the flue gas outlet 15 to detect whether the discharged exhaust gas meets the requirements of emission regulations.
A water outlet is formed in the bottom of the bubble column 10, and the seawater is filtered by a bubble column outlet filter 262 at the water outlet and discharged out of the bubble column 10 after being subjected to hydrodynamic cavitation, ozone oxidation, ultrasonic wave and ultraviolet light sterilization. A circulation pump 17 is provided downstream of the bubble column outlet filter 262 to deliver treated seawater. A second check valve 282 is provided downstream of the circulation pump 17 to prevent the reverse flow of seawater.
Two branches are arranged at the downstream of the second check valve 282, one branch is a bubble column bypass pipeline 12 and is connected to the upper part of the bubble column 10, the outlet of the bubble column bypass pipeline 12 is located above the liquid level in the bubble column 10, and the bubble column bypass pipeline 12 is used for adjusting the pipeline flow (generally, the circulating pump 17 is a centrifugal pump which needs full flow to ensure sufficient pressure head, and if the pipeline flow is adjusted by adjusting the seventh control valve 37, the centrifugal pump is greatly damaged); the other branch pipeline is a circulation pipeline and is provided with a denitration device, in this embodiment, the denitration device is an anion exchange resin exchanger 18, the anion exchange resin exchanger 18 is arranged on the main pipeline after the circulation pump 17 and is used for removing NO dissolved in seawater3 -. Anion exchange resin used in the anion exchange resin exchanger 18, NO when anion is replaced3 -The replacement grade of (2) is the most preferred, and the anion exchange resins recommended are strongly basic styrene-based anion exchange resin 717 and chelate resin D407, and the anion exchange resin can be regenerated by treatment after use.
A third water quality analyzer 273 is disposed downstream of the anion exchange resin exchanger 18 to detect whether the treated seawater meets the requirements of discharge regulations.
The bottom of the ballast tank 22/23 is provided with an outlet line on which is mounted a ballast tank outlet filter 263/264 to filter impurities in the seawater. Two branches are arranged at the downstream of the ballast water tank outlet filter 263/264, one branch is a ballast water discharge pipeline 29, a second water quality analyzer 272, a fourth check valve 284 and a liquid discharge pump 24 are installed for discharging ballast water with the water quality reaching the standard, and the other branch is connected back to the pipeline at the seawater inlet 1 for realizing the circular treatment of the ballast water in the ballast water tank.
Meanwhile, the hydrodynamic cavitation generator 5, the ozone machine 7, the pipeline type ultraviolet sterilizer 8 and the ultrasonic generator 16 which are arranged in the integrated treatment system can perform proper power adjustment or on-off operation according to the quality of the ballast water of the ship or the concentration of tail gas pollutants discharged in the running process of the ship (detection results of the first flue gas analyzer 274 and the first water quality analyzer 271), so as to save electricity.
The selectable working processes of the integrated treatment system for the ship ballast water and the flue gas desulfurization and denitrification comprise the following steps:
1. when the ship is loaded with ballast water, the third control valve 33, the fourth control valve 34, the sixteenth control valve 46, the seventeenth control valve 47, the eighteenth control valve 48, the nineteenth control valve 49, the twentieth control valve 50, the twenty-first control valve 51 and the twenty-second control valve 52 are closed and controlled, the other control valves are kept open, seawater is pumped to a pipeline by using the seawater pump 2 and pressurized, and after the treatment of hydrodynamic cavitation, ozone, ultrasonic wave and ultraviolet light sterilization, the seawater is distributed to the first ballast water tank 22 and the second ballast water tank 23 at different positions of the ship by the circulating pump 17 through the three-way regulating valve 21. Meanwhile, the treated ballast water can synchronously treat SO in the waste gas in the bubble tower 10XAnd NOX。
Further, when the third water quality analyzer 273 detects that the quality of the ballast water loaded on the ship is not qualified, the nineteenth control valve 49 and the twenty-first control valve 51 are opened, and the first control valve 31 is closed, so that the seawater in the ballast water tank is circularly treated in the system until the seawater reaches the standard.
2. When the first ballast tank 22 and the second ballast tank 23 are unloaded and waste gas needs to be treated at the same time, the third control valve 33, the fourteenth control valve 44, the fifteenth control valve 45, the seventeenth control valve 47, the eighteenth control valve 48, the nineteenth control valve 49 and the twenty-first control valve 51 are closed, and the other control valves are kept open, so that the seawater in the first ballast tank 22 and the second ballast tank 23 passes through the fourteenth control valveThe piping in which the twenty-second control valve 52 and the twenty-first control valve 50 are located is drained by the drain pump 24. Seawater for treating waste gas enters the system through a seawater inlet 1, is pressurized and conveyed by a seawater pump 2, and is subjected to hydrodynamic cavitation, ozone, ultrasonic wave and ultraviolet light sterilization treatment, SO that the treated seawater can synchronously treat SO in the waste gas in a bubble tower 10XAnd NOX. The seawater in the bubble column 10 is conveyed to the buffer tank 4 through the circulating pump 17, when the liquid level in the buffer tank 4 reaches the upper limit, the first control valve 31 is closed, the eighteenth control valve 48 is opened, and the seawater in the buffer tank 4 is utilized to circularly treat the waste gas.
Further, when the seawater treatment effect in the buffer tank 4 is weakened or no longer suitable for further treatment of the exhaust gas, the fourteenth control valve 44 is opened, and the sixteenth control valve 46 is closed, so that the seawater is discharged through the discharge line 14.
Further, when the liquid level of the seawater in the buffer tank 4 reaches the lower limit, the flow action is repeated, so that the seawater for treating the waste gas enters the system through the seawater inlet 1, fresh seawater is input into the system through the seawater pump 2, and the waste gas is continuously treated in a circulating manner by utilizing the seawater.
3. When the ship normally sails and the ballast water amount is sufficient, the first control valve 31, the third control valve 33, the sixteenth control valve 46, the seventeenth control valve 47, the eighteenth control valve 48, the twentieth control valve 50, the twenty-second control valve 52 and the twenty-fourth control valve 54 are closed, other valves are kept open, seawater in the first ballast water tank 22 and the second ballast water tank 23 is pressurized through the seawater pump 2 and is continuously conveyed into the bubble column 10, and the tail gas desulfurization and denitrification treatment is carried out by utilizing OH generated by hydrodynamic cavitation, ozone and ultrasonic waves. The seawater is then transported back to the first 22 and second 23 ballast tanks by the circulation pump 17, completing a circulation process.
4. When the ship normally sails but the ship has no ballast water or the ship has no ballast water suitable for treating the flue gas again, the third control valve 33, the fourteenth control valve 44, the fifteenth control valve 45, the seventeenth control valve 47, the eighteenth control valve 48, the nineteenth control valve 49, the twentieth control valve 50, the twenty-first control valve 51, the twenty-second control valve 52 and the twenty-fourth control valve 54 are closed, and the other control valves are kept open, the seawater for treating the waste gas enters the system through the seawater inlet 1, is pressurized and conveyed by the seawater pump 2, and can synchronously treat SOx and NOx in the flue gas in the bubble tower 10 after the hydraulic cavitation, ozone, ultrasonic wave and ultraviolet light sterilization treatment. The seawater in the bubble column 10 is conveyed to the buffer tank 4 through the circulating pump 17, when the liquid level in the buffer tank 4 reaches the upper limit, the first control valve 31 is closed, the eighteenth control valve 48 is opened, and the seawater in the buffer tank 4 is utilized to circularly treat the waste gas.
Further, when the effect of the seawater treatment in the buffer tank 4 is reduced, the fourteenth control valve 44 is opened, and the sixteenth control valve 46 is closed, so that the seawater is discharged through the discharge line 14.
Further, when the liquid level of the seawater in the buffer tank 4 reaches the lower limit, the flow action is repeated, so that the seawater for treating the waste gas enters the system through the seawater inlet 1, fresh seawater is input into the system through the seawater pump 2, and the waste gas is continuously treated in a circulating manner by utilizing the seawater.
The invention has the beneficial effects that:
1. the invention realizes the integrated treatment of the desulfurization and denitrification of the ballast water and the tail gas by combining the advanced oxidation technology of hydrodynamic cavitation, ultrasonic cavitation and ozone oxidation and ultraviolet light sterilization. The throttle member is used for making seawater produce hydrodynamic cavitation and combining ultrasonic cavitation, ozone and ultraviolet light to treat organic matter in seawater, and the unreacted OH and ozone in seawater are used to further oxidize SO in waste gasXAnd NOXBy oxidation of generated NO3 -The removal is carried out by anion exchange resin, so that the waste gas and ballast water discharged by the system meet the relevant requirements of IMO (International maritime organization) discharge regulations.
2. The invention realizes the traditional ballast water treatment and the waste gas desulfurization and denitration treatment by using one set of system, thereby saving the equipment space and the investment cost. During the operation of the system, NO is removed3 -The anion exchange resin can be reused by regeneration, so that the system has no secondary pollution during operationAnd no extra medicament is needed to be added, and only electric energy is consumed.
3. The invention can adjust the power and the on-off of the hydrodynamic cavitation, the ultrasonic cavitation, the ozone and the ultraviolet device aiming at the pollutants with different concentrations by monitoring the concentration of the pollutants in the waste gas and the seawater through the flue gas analyzer and the water quality analyzer in the system, thereby having more flexibility and saving electric energy.
Second embodiment
As shown in fig. 2, the integrated system for desulfurization and denitrification of ship ballast water and flue gas according to the second embodiment of the present invention is substantially the same as the first embodiment, and is different in the denitrification device used and the position of the denitrification device.
Specifically, in the present embodiment, the denitration device is an SCR denitration device 30, the SCR denitration device 30 is disposed on the pipeline between the dust collector 19 and the flue gas diffusion pipe 13, and the SCR denitration device 30 is located on the main pipeline before the first flue gas analyzer 274, so that NO in the flue gas is oxidized before the flue gas is treated in the bubble column 10XRemoved in advance so that the seawater in the bubble column 10 is free of NO3 -And can be directly discharged to the sea.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (9)

1. A desulfurization and denitrification integrated treatment system for ship ballast water and tail gas is characterized by comprising a seawater inlet (1), a seawater pump (2), a hydrodynamic cavitation generator (5), an ozone machine (7), a pipeline type ultraviolet light sterilizer (8), a bubble tower (10), an ultrasonic emitter (11), a flue gas diffusion pipe (13), a flue gas outlet (15), an ultrasonic generator (16), a circulating pump (17), a dust remover (19), a flue gas inlet (20), at least one ballast water tank (22/23), a liquid discharge pump (24), a ballast water discharge pipeline (29) and a denitrification device;
the seawater inlet (1) is communicated with an inlet of the seawater pump (2), an outlet of the seawater pump (2) is communicated with an inlet of the hydrodynamic cavitation generator (5), an outlet of the hydrodynamic cavitation generator (5) is communicated with an inlet of the pipeline type ultraviolet light sterilizer (8), an outlet pipeline of the hydrodynamic cavitation generator (5) is provided with an ozone injection port (6), an outlet of the ozone machine (7) is communicated with the ozone injection port (6), a bubble tower seawater inlet (9) is arranged on the bubble tower (10), an outlet of the pipeline type ultraviolet light sterilizer (8) is communicated with the bubble tower seawater inlet (9), the ultrasonic emitter (11) is positioned in the bubble tower (10) and immersed in seawater, the ultrasonic generator (16) is connected with the ultrasonic emitter (11), a bottom outlet of the bubble tower (10) is communicated with an inlet of the circulating pump (17), the outlet of the circulating pump (17) is communicated with the inlet of the at least one ballast water tank (22/23), the outlet of the at least one ballast water tank (22/23) is divided into two paths, one path is communicated with the inlet of the liquid discharge pump (24), the outlet of the liquid discharge pump (24) is communicated with the ballast water discharge pipeline (29), and the other path is communicated to a pipeline between the seawater inlet (1) and the seawater pump (2);
the flue gas diffusion pipe (13) is positioned at the bottom position in the bubble column (10), the flue gas inlet (20) is communicated with the inlet of the dust remover (19), the outlet pipeline of the dust remover (19) penetrates through the bubble column (10) and is communicated with the flue gas diffusion pipe (13), and the top outlet of the bubble column (10) is communicated with the flue gas outlet (15);
the denitration device is arranged on a pipeline between the circulating pump (17) and the at least one ballast water tank (22/23) or a pipeline between the dust remover (19) and the flue gas diffusion pipe (13); the denitration device is an anion exchange resin exchanger (18), and the anion exchange resin exchanger (18) is arranged on a pipeline between the circulating pump (17) and the at least one ballast water tank (22/23); or the denitration device is an SCR denitration device (30), and the SCR denitration device (30) is arranged on a pipeline between the dust remover (19) and the flue gas diffusion pipe (13).
2. The integrated desulfurization and denitrification system for ship ballast water and tail gas as claimed in claim 1, further comprising a buffer tank (4), wherein an inlet of the buffer tank (4) is connected to a pipeline between the circulating pump (17) and the at least one ballast water tank (22/23), and an outlet of the buffer tank (4) is connected to a pipeline between the seawater inlet (1) and the seawater pump (2).
3. The integrated treatment system for desulfurization and denitrification of ship ballast water and tail gas as set forth in claim 1, further comprising a bubble column bypass line (12), wherein one end of said bubble column bypass line (12) is communicated with an outlet of said circulation pump (17), and the other end of said bubble column bypass line (12) is communicated to an upper position of said bubble column (10).
4. The integrated treatment system for desulfurization and denitrification of ship ballast water and tail gas as claimed in claim 1, wherein the number of the hydrodynamic cavitation generators (5) is multiple, the hydrodynamic cavitation generators (5) are arranged in parallel, the inlets of the hydrodynamic cavitation generators (5) are communicated with the outlet of the seawater pump (2) after being converged, the outlets of the hydrodynamic cavitation generators (5) are communicated with the inlet of the pipeline type ultraviolet light sterilizer (8) after being converged, one ozone injection port (6) is arranged at the position close to the outlet of the hydrodynamic cavitation generator (5) on a branch pipeline where each hydrodynamic cavitation generator (5) is located, and the outlet of the ozone generator (7) is communicated with the ozone injection ports (6) simultaneously.
5. The integrated desulfurization and denitrification system for ship ballast water and tail gas as set forth in claim 1, wherein the seawater inlet (9) of the bubble column is located 0.5 to 1m below the highest liquid level of the bubble column (10).
6. The integrated treatment system for desulfurization and denitrification of ship ballast water and tail gas as claimed in claim 1, wherein a three-way regulating valve (21) is arranged on a pipeline between the circulating pump (17) and the at least one ballast water tank (22/23), the number of the at least one ballast water tank (22/23) is two, and the at least one ballast water tank comprises a first ballast water tank (22) and a second ballast water tank (23), an outlet of the circulating pump (17) is respectively communicated with inlets of the first ballast water tank (22) and the second ballast water tank (23) through the three-way regulating valve (21), an outlet of the first ballast water tank (22) is divided into two paths, one path is communicated with an inlet of the liquid discharge pump (24), and the other path is communicated with a pipeline between the seawater inlet (1) and the seawater pump (2); the outlet of the second ballast water tank (23) is divided into two paths, one path is communicated with the inlet of the liquid discharge pump (24), and the other path is communicated to a pipeline between the seawater inlet (1) and the seawater pump (2).
7. The integrated treatment system for desulfurization and denitrification of ship ballast water and tail gas as claimed in claim 6, further comprising a seawater inlet filter (261), a bubble column outlet filter (262), a first ballast water tank outlet filter (263) and a second ballast water tank outlet filter (264), wherein the seawater inlet (1) is communicated with an inlet of the seawater inlet filter (261), an outlet of the seawater inlet filter (261) is communicated with an inlet of the seawater pump (2), a bottom outlet of the bubble column (10) is communicated with an inlet of the bubble column outlet filter (262), and an outlet of the bubble column outlet filter (262) is communicated with an inlet of the circulation pump (17); the outlet of the first ballast water tank (22) is communicated with the inlet of the first ballast water tank outlet filter (263), the outlet of the first ballast water tank outlet filter (263) is divided into two paths, one path is communicated with the inlet of the liquid discharge pump (24), and the other path is communicated to a pipeline between the seawater inlet (1) and the seawater pump (2); the outlet of the second ballast water tank (23) is communicated with the inlet of the second ballast water tank outlet filter (264), and the outlet of the second ballast water tank outlet filter (264) is divided into the two paths.
8. The integrated treatment system for desulfurization and denitrification of ship ballast water and tail gas as claimed in claim 1, wherein a first check valve (281) is arranged on a pipeline between the sea water pump (2) and the hydrodynamic cavitation generator (5), a second check valve (282) is arranged on a pipeline between the circulating pump (17) and the at least one ballast water tank (22/23), a third check valve (283) is arranged on a pipeline between the dust remover (19) and the flue gas diffusion pipe (13), and a fourth check valve (284) is arranged on a pipeline between the drain pump (24) and the ballast water discharge pipeline (29).
9. The integrated desulfurization and denitrification system for ship ballast water and tail gas as set forth in claim 1, wherein a control valve is further provided in each pipeline.
CN202010705698.2A 2020-07-21 2020-07-21 Ship ballast water and tail gas desulfurization and denitrification integrated treatment system Active CN111792770B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105413434A (en) * 2015-12-31 2016-03-23 无锡蓝天电子有限公司 Technology for simultaneous treatment of ship tail gas desulphurization and ship ballast water
CN105617841A (en) * 2015-12-31 2016-06-01 胡克峰 Ship tail gas desulfurization and ship ballast water integrated treatment technology
CN106865840A (en) * 2017-03-28 2017-06-20 中国科学院城市环境研究所 A kind of ship tail gas and ballast water integrated processing system
CN106925093A (en) * 2017-04-13 2017-07-07 青岛双瑞海洋环境工程股份有限公司 Composite cruising ballast water and marine exhaust processing system
CN108218047A (en) * 2018-03-13 2018-06-29 大连海事大学 A kind of ocean vessel ballast water for the operation of port area handles barge
CN109970140A (en) * 2019-04-04 2019-07-05 上海海事大学 A kind of ultraviolet light catalyzing and strong oxidizing port ballast emergency processing method and device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105413434A (en) * 2015-12-31 2016-03-23 无锡蓝天电子有限公司 Technology for simultaneous treatment of ship tail gas desulphurization and ship ballast water
CN105617841A (en) * 2015-12-31 2016-06-01 胡克峰 Ship tail gas desulfurization and ship ballast water integrated treatment technology
CN106865840A (en) * 2017-03-28 2017-06-20 中国科学院城市环境研究所 A kind of ship tail gas and ballast water integrated processing system
CN106925093A (en) * 2017-04-13 2017-07-07 青岛双瑞海洋环境工程股份有限公司 Composite cruising ballast water and marine exhaust processing system
CN108218047A (en) * 2018-03-13 2018-06-29 大连海事大学 A kind of ocean vessel ballast water for the operation of port area handles barge
CN109970140A (en) * 2019-04-04 2019-07-05 上海海事大学 A kind of ultraviolet light catalyzing and strong oxidizing port ballast emergency processing method and device

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