WO2020143578A1 - 海船清洁航行方法及船舶 - Google Patents
海船清洁航行方法及船舶 Download PDFInfo
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- WO2020143578A1 WO2020143578A1 PCT/CN2020/070485 CN2020070485W WO2020143578A1 WO 2020143578 A1 WO2020143578 A1 WO 2020143578A1 CN 2020070485 W CN2020070485 W CN 2020070485W WO 2020143578 A1 WO2020143578 A1 WO 2020143578A1
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- WIPO (PCT)
- Prior art keywords
- ship
- seawater
- water
- neutralization
- treatment
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 95
- 239000013535 sea water Substances 0.000 claims abstract description 208
- 238000005406 washing Methods 0.000 claims abstract description 146
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 124
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 468
- 238000003860 storage Methods 0.000 claims description 136
- 239000000126 substance Substances 0.000 claims description 53
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- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 8
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- 229910052749 magnesium Inorganic materials 0.000 claims description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
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Images
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Definitions
- the invention relates to a clean sailing method and a ship for sea vessels, which is an invention made for marine vessels to maintain the unique advantages of economy and environmental protection under the premise of ensuring the safety of navigation, so as to fulfill the United Nations new global regulations on sulfur limitation of ships, and belongs to the anti-fouling of ships Technology and marine engineering technology.
- the purpose of the present invention is to overcome the shortcomings of the existing seawater scrubbing exhaust gas discharge "open" EGC desulfurization ship due to the prohibition of a few sea areas to affect the full voyage legal compliance navigation, and to provide a full voyage legal compliance seawater scrubbing ship exhaust gas desulfurization method And ships and applications; the other purpose is: First, to maintain the existing safety and stability of the ship, to prevent the technical measures taken to implement the sulfur limit order to reduce the safety of ship navigation; Second, to maintain the existing cost-effective advantages of marine shipping, Avoid the technical measures taken to implement the sulfur restriction order to significantly increase the ship's operating costs and fixed costs; third, maintain the green environmental protection advantages of ship seawater washing and desulfurization, and avoid the technical measures taken to implement the sulfur limit order to lead to land and The number of artificial chemicals in the natural environment of the sea area has increased significantly.
- a first aspect of the present invention is to provide a method for clean navigation of sea vessels, the steps include:
- Open operation washing seawater treatment including: neutralizing the washing seawater in open operation;
- the water storage container includes a ballast water tank.
- the method also includes mixing the washed seawater with the ballast water in the ballast water tank.
- the method also includes storing the washed seawater to a water storage container and using it as ballast water.
- Step i) is performed before step ii); or, step i) is performed after step ii); or, step i) and step ii) are performed simultaneously.
- the method further includes providing an open and closed operation neutralization device, and the open operation neutralization process and the closed operation neutralization process are both performed in the neutralization device.
- the method further includes: providing an open operation neutralization device and a closed operation neutralization device, the open operation neutralization process is performed in the open operation neutralization device, and the closed operation neutralization process is performed at The closed operation is carried out in the equipment.
- the method further includes: providing an open operation neutralization device, the open operation neutralization process is performed in the open operation neutralization device, and the closed operation neutralization process is performed in the water storage container .
- the open operation neutralization treatment includes: mixing the washed seawater with natural seawater, and/or, mixing the washed seawater with alkaline compounds;
- the closed operation neutralization treatment includes: mixing the washed seawater with natural Seawater, and/or, mixing the washed seawater with alkaline chemicals.
- the alkaline chemical is selected from magnesium-based alkaline chemicals, calcium-based alkaline chemicals, sodium-based alkaline chemicals, or a combination thereof.
- the closed operation washing seawater treatment also includes:
- the killing treatment includes: ultraviolet killing treatment, and/or hypochlorous acid killing treatment, and/or ozone killing treatment.
- the inner walls of the water storage container and the inner walls of pipes and pumps for transporting the washing seawater to the water storage container are protected from acid corrosion.
- a second aspect of the present invention is to provide a ship that executes the above-mentioned sea ship clean navigation method, the ship includes:
- a scrubber in which the tail gas is washed with seawater and produces washed seawater
- the water storage container is located near the center point of the ship plane below the ship waterline.
- the ship also includes open and closed operation neutralization equipment, and the open operation and neutralization processing and closed operation and neutralization processing are both performed in the open and closed operation and neutralization equipment.
- the ship further includes natural seawater supply equipment configured to provide natural seawater for neutralization treatment to the open and close operation neutralization equipment.
- the ship further includes an alkaline compound supply device configured to provide the alkaline compound for neutralization treatment to the open and close operation neutralization device.
- the ship also includes an open operation neutralization device and a closed operation neutralization device, the open operation neutralization process is performed in the open operation neutralization device, and the closed operation neutralization process is performed in the In closed operation and in equipment.
- the ship further includes natural seawater supply equipment configured to provide natural seawater for neutralization treatment to the open operation neutralization equipment and/or closed operation neutralization equipment.
- the ship further includes an alkaline compound supply device configured to provide the alkaline compound for neutralization treatment to the open operation neutralization device and/or the closed operation neutralization device.
- the ship further includes an open operation neutralization device, the open operation neutralization process is performed in the open operation neutralization device, and the closed operation neutralization process is performed in the water storage container.
- the ship further includes natural seawater supply equipment configured to provide natural seawater for neutralization treatment to the open operation neutralization equipment and/or water storage container.
- the ship further includes an alkaline compound supply device configured to provide the open operation neutralization device and/or the water storage container with an alkaline compound for neutralization treatment.
- the ship further includes a killing treatment device, and the killing treatment device includes an ultraviolet killing treatment device, and/or a hypochlorous acid killing treatment device, and/or an ozone killing treatment device.
- the scrubber is filled with a filler for increasing the contact area between seawater and tail gas.
- the third aspect of the present invention is to provide a method for cleaning a ship's tail gas, including the following steps:
- the ship's engine exhaust and scrubbing seawater are introduced into the scrubber so that the seawater scrubs the engine exhaust to absorb sulfur dioxide in the exhaust; b) exhausts the engine exhaust after seawater scrubbing and absorption to the sulfur content reaches the standard; c) The ship is sailing in the sea area where washing water is allowed to be discharged, so that the acidic washing drainage generated in step a) and the alkaline seawater extracted to the ship are neutralized and discharged to the sea after reaching the standard; d) the ship is sailing in the sea area where washing water is prohibited to discharge, so that a) The acidic washing and drainage generated in the step is switched to be stored in the ballast water tank used by the ship as a storage tank; e) The ship is then sailed to the sea area where the wash water is allowed to be discharged, so that the ship is used as a storage tank in the ballast water tank after the neutralization treatment And/or killing the treated washing wastewater to the standard and discharging the sea, and
- step b) exhausting the engine exhaust gas after being washed and absorbed in sea water until the sulfur content reaches the standard, means that the concentration of the engine exhaust sulfur dioxide reaches the standard required by the Convention on Marine Atmospheric Pollution Prevention (MARPOL Annex VI) and related regulations. atmosphere.
- MMPOL Annex VI Marine Atmospheric Pollution Prevention
- the step a) allows seawater to scrub engine exhaust gas to absorb sulfur dioxide in the exhaust gas, which is a high-efficiency desulfurization scrubbing method that enables seawater and exhaust gas to achieve full gas-liquid contact through the formation of a large-area continuous air gap and a filling layer of a water film.
- the removal rate is high and the amount of washing water required is small.
- the neutralization treatment in step e) includes alkaline seawater neutralization treatment and/or alkaline chemical neutralization treatment.
- the alkaline seawater neutralization treatment is a process of neutralizing the stored acidic washing drainage water and the natural seawater extracted from the sea in the ship's seawater main pipe and/or the natural seawater for cooling facilities on board the ship.
- the neutralization treatment of alkaline chemicals is a treatment to neutralize the stored acid washing wastewater and alkaline chemicals including magnesium-based and/or calcium-based and/or sodium-based.
- the killing treatment in step e) includes the killing treatment of ship ballast water by ultraviolet rays and/or hypochlorous acid and/or ozone.
- the killing treatment in the step e) is a biological killing treatment of the acidic liquid of the ship's ballast water stored directly using acidic washing and drainage at low pH.
- Said step e) neutralizing and/or killing the washed and drained water stored in the ballast water tank used by the ship as a water storage tank to reach the standard and discharged to the sea means that the washed and drained water reaches the ship's washing water discharge regulations and/or the ship
- the water quality standards required by ballast water discharge regulations are discharged into the sea.
- the step d) switches the washing and drainage to be stored in the ballast water tank used by the ship as a water storage tank, and the volume of the ballast water tank used as the water storage tank accounts for at least 0.3% of the total volume of the ship's ballast water tank, Or 0.5%, or 1%, or 2%, or 3%, or 4%, or 5%, or 10%, or 15%, or 20%, or 30%, or 40%, or 50%, or 80 %; and at most 0.3%, or 0.5%, or 1%, or 2%, or 3%, or 4%, or 5%, or 10%, or 15%, or 20%, or 30%, or 40 %, or 50%, or 80%.
- the washing and drainage generated in the step d) is switched to be stored in the ballast water tank used by the ship as a water storage tank, and is stored in the vicinity of the center point of the ship plane below the ship waterline.
- the step e) enables the ship to use the treated washing and drainage water stored in the ballast tank of the water storage tank as required to discharge the water into the sea, and the storage time before the washing and drainage water is discharged to the sea is at least 10 minutes, or 20 minutes, or 30 minutes, or 45 minutes, or 1 hour, or 2 hours, or 3 hours, or 6 hours, or 12 hours, or 24 hours, or 36 hours, or 48 hours.
- the device includes the hull, engine, scrubber, seawater neutralizer, ballast water tank used as a storage tank and its biocide unit, and the discharge outlet of the wash water that meets the standard; the exhaust pipe of the engine is connected to the chimney through the scrubber; washing The device is connected with a wash water inlet pipe, and is connected to a seawater neutralizer through an acid wash water discharge pipe; the seawater neutralizer is connected with a seawater neutralization inlet pipe, and is connected to a standard wash water discharge port through the wash water discharge pipe; seawater neutralizer It is also connected to a ballast water tank used as a water storage tank; a biocide treatment unit is connected to the ballast water tank; a biocide treatment unit is connected to a seawater neutralizer through a biocide water discharge pump.
- the fourth aspect of the present invention is to provide a ship for performing the above-mentioned sea vessel tail gas cleaning method:
- the exhaust pipe is connected to the chimney through the scrubber; the scrubber is connected to the wash water inlet pipe, and is connected to the seawater neutralizer through the acidic wash water discharge pipe; the seawater neutralizer is connected to the seawater neutralization inlet pipe, and discharged through the wash water
- the pipe is connected to the outlet of the washing water that meets the standard; the seawater neutralizer is also connected to the chemical neutralizer and the ballast water tank used as the storage tank; the ballast water tank is connected to the biocide treatment unit and the ballast water discharge pipe, and the ballast The water discharge pipe is connected with the ballast water discharge outlet which meets the standard.
- a fifth aspect of the present invention is to provide another ship for performing the above-mentioned sea vessel tail gas cleaning method:
- ballast water tank used as a water storage tank, seawater neutralizer, and discharge outlet for washing water that meets the standard
- the exhaust pipe of the engine communicates with the chimney through the scrubber
- the scrubber is connected to the wash water inlet
- the water pipe is connected to the seawater neutralizer through the acid wash water discharge pipe
- the seawater neutralizer is connected to the seawater neutralization inlet pipe, and is connected to the standard wash water discharge port through the wash water discharge pipe
- the seawater neutralizer is also used as a water storage tank
- the ballast water tanks are connected by two-way pipelines.
- the chemical neutralizer is composed of a container for mixing acid washing drainage and alkaline chemicals, and a magnesium-based and/or calcium-based and/or sodium-based chemical raw material storage tank and a conveying device.
- the biocidal treatment unit is composed of an acid liquid biocidal device that uses acidic washing and drainage to store biocidal acid at a low pH value.
- the biological killing treatment unit is composed of a ship's existing ballast water treatment biological killing system device, including ultraviolet killing and/or hypochlorous acid killing and/or ozone killing system devices.
- the ballast water tank used as a water storage tank has a volume share of at least 0.3%, or 0.5%, or 1%, or 2%, or 3%, or 4% of the total volume of the ship's ballast water tank, Or 5%, or 10%, or 15%, or 20%, or 30%, or 40%, or 50%, or 80%, and at most 0.3%, or 0.5%, or 1%, or 2%, Or 3%, or 4%, or 5%, or 10%, or 15%, or 20%, or 30%, or 40%, or 50%, or 80% part of the ballast water tank.
- the ballast water tank used as a water storage tank is provided with a volume for washing and drainage storage for at least 10 minutes, or 20 minutes, or 30 minutes, or 45 minutes, or 1 hour, or 2 hours, or 3 hours, or 6 hours , Or 12 hours, or 24 hours, or 36 hours, or 48 hours of ballast water tanks.
- the ballast water tank used as a water storage tank is a ballast water tank near the center point of the ship plane below the ship's waterline.
- the scrubber is a filler-type scrubber filled with a large area of continuous air gap and a water film in the cavity so that the passing gas and liquid can fully contact to efficiently desulfurize.
- Said fillers include ring-shaped and/or spherical and/or strip-shaped and/or saddle-shaped and/or polygonal and/or orifice-shaped and/or multi-element shaped fillers.
- the scrubber is a scrubber embedded in a muffler with a muffler function, so that the scrubber does not take up additional space in the ship.
- the application scheme of the sea vessel tail gas cleaning method of the present invention on a ship is to use the method of the present invention to reduce the emission of sulfur dioxide from the ocean shipping to the atmosphere.
- the present invention provides a method for cleaning tail gas from ships, ships and applications, using the "open and close" EGC technology principle to enable marine ships to adopt the standard mode of IMO EGC (tail gas cleaning) guidelines in general seas ——Only use seawater to wash tail gas for desulfurization. When the ship enters a few prohibited scrubbing waters, it will continue to use seawater to wash the tail gas for desulfurization, but the washing and drainage will be stored in the ship’s storage tank and/or used as the pressure of the storage tank.
- EGC tail gas cleaning
- ballast tank after the ship returns to the general sea, will be stored and subjected to natural neutralization treatment and/or chemical neutralization treatment and biocide treatment to meet the ship's washing water discharge regulations and/or ballast water discharge regulations It is required that the storage wash water of the water quality standard meet the standard and be discharged to the sea, and the ship's EGC system is switched to resume the standard desulfurization mode of IMO EGC guidelines, and the ballast tank used as the storage tank is restored to the general ballast water tank function. The vast majority of sea areas throughout the voyage do not occupy ballast water tanks.
- the present invention has achieved the technical effect of making the entire voyage of marine vessels meet the requirements of the new regulations on sulfur limitation of the United Nations and always maintain the cost and environmental benefits of shipping, and achieve the purpose of the present invention.
- the sixth aspect of the present invention is to provide another method for safely cleaning ship exhaust gas. The steps include:
- the existing ship is provided with an accident bypass damping valve in the engine flue.
- EGC system In order to prevent the engine smoke from passing through the bypass damping valve when the EGC system fails, EGC system is directly discharged to the atmosphere.
- the bypass damping valve must be connected in series in the engine exhaust channel and cannot be removed, therefore, the failure of the bypass damping valve itself may cause serious consequences that suffocate the engine and affect the ship's navigation safety.
- the bypass damping valve itself has a complex structure (double-disc airtight), the working environment is harsh, and its reliability is difficult to guarantee.
- the failure rate of the engine reduces the safety of the engine, that is, the ship.
- the method provided by the present invention overcomes the shortcoming that the existing ship's EGC traditional bypass system cannot guarantee the safety of the ship's engine and navigation, and provides a safe cleaning method and ship where any failure of the EGC system does not affect the safe operation of the engine.
- the opening gas pressure of the water seal of the scrubber in step c) is equal to the upper limit value of the safety gas pressure of the scrubber.
- the seventh aspect of the present invention is to provide a ship that implements the above-mentioned ship tail gas safety cleaning method:
- the balance bypass box includes a bypass evacuation channel, the water and gas inlet of the water-gas balance bypass box is connected to the water seal, and the water outlet of the water-gas balance bypass box is connected to the water quality recovery system.
- the water seal is a water seal formed by a structure with a circulation capacity allowing the safe circulation of engine exhaust gas.
- the water seal is a water seal composed of a water seal structure with a water column height equal to the upper limit of the safe air pressure of the scrubber.
- the scrubber and water-air balance bypass box are made of high temperature resistant materials.
- the present invention provides a ship tail gas safety cleaning method and ship, which adopts the way of making the washing water enter the container communicating with the atmosphere through the water seal of the washer, and the back pressure rises when the washer fails
- the water seal is automatically opened when it reaches the preset water seal air pressure opening value, and the way of the exhaust gas entering the container communicating with the atmosphere is formed to form a bypass channel, and the circulation capacity of the water seal of the scrubber allows the engine exhaust gas to circulate safely, ensuring the engine Safe operation.
- the technical effects are as follows: one is to keep the water level of the water tank of the scrubber to prevent the washing water from entering the engine flue and hinder the smooth exhaust; the second is to bypass the exhaust gas when the scrubber is blocked and keep the engine exhaust safe; the third is to prevent the introduction of The traditional bypass damper (double disc, sealed fan) avoids the fatal risk of suffocating the engine that cannot be dismantled for the safety of the engine.
- the traditional bypass damper double disc, sealed fan
- FIG. 1 is a schematic diagram of steps of an embodiment of a method for cleaning and sailing a sea vessel of the present invention, and is also a schematic diagram of an embodiment of an application scheme of a method for cleaning and sailing a sea vessel of the present invention on a ship.
- FIG. 2 is a schematic diagram of an embodiment of a ship technical solution used for the clean sailing method of the sea ship of the present invention.
- the feature is that the ship uses part of the ballast water tank as a storage tank to store acid washing and drainage.
- the seawater neutralizer and the ballast water tank Connect to the biocidal water pump.
- FIG. 3 is a schematic diagram of another embodiment of a ship technical solution used in the ship exhaust gas cleaning method of the present invention, characterized in that the ship uses part of the ballast water tank as a storage tank to store acidic washing and drainage, seawater neutralizers and chemical neutralizers and The ballast water tank is connected.
- FIG. 4 is a schematic diagram of an embodiment of the integrated solution of the ship technical solutions of FIGS. 2 and 3.
- the dotted line in the figure shows that there are two working conditions that can be switched to correspond to the technical solutions of FIG. 2 or FIG. 3, respectively.
- FIG. 5 is a schematic diagram of another embodiment of a ship technical solution used for the clean sailing method of the sea ship of the present invention, characterized in that the ship uses part of the ballast water tank as a storage tank to store acid washing and drainage, and the seawater neutralizer and the ballast water The cabin is bidirectionally connected.
- Fig. 6 is a schematic diagram of an improved embodiment based on the ship's technical solution of Fig. 5, characterized in that the ship uses part of the ballast water tank as a water storage tank to store acid washing and drainage, and a seawater neutralizer is combined with the ballast water tank.
- FIG. 7 is a schematic diagram of another embodiment of a ship technical solution used in the method of clean sailing of the sea ship of the present invention, characterized in that the ship is provided with a water storage tank to store acid washing and drainage, and a seawater neutralizer is connected to the water storage tank.
- FIG. 8 is a schematic diagram of an improved embodiment based on the technical solution of the ship of FIG. 7, characterized in that the ship is provided with a water storage tank to store acidic washing and drainage, and the seawater neutralizer is combined with the water storage tank.
- FIG. 9 is a schematic diagram of steps of an embodiment of a method for safely cleaning ship exhaust gas and a ship of the present invention.
- Embodiment 1 It is a set of basic embodiments of a clean sailing method for sea vessels of the present invention. As shown in FIG. 1, the steps of an embodiment include a) introducing the exhaust gas of the engine of the ship and the sea water for washing into the vessel during the sailing.
- the engine exhaust gas is washed with seawater in the vessel to absorb the sulfur dioxide in the exhaust gas; b) the engine exhaust gas after being absorbed by the seawater until the sulfur content reaches the standard is discharged to the atmosphere; c) the ship sails in the sea area where the wash water is allowed to discharge, so that the The acidic washing drainage and the alkaline seawater extracted from the ship are neutralized and discharged to the sea after reaching the standard; d) The ship sails in the sea area where the discharge of washing water is prohibited, so that the acidic washing drainage generated in step a) is switched to be stored in the ship and used as a water storage tank Ballast water tanks; e) The ship sails again to the sea area where wash water is allowed to discharge, so that the ballast water tanks used by the ship as storage tanks can be discharged into the sea after neutralization treatment and/or killing treatment. The washing drainage generated in step a) is switched to step c).
- the step b) causes the concentration of sulfur dioxide in the exhaust gas of the engine after being washed by seawater to reach the standard required by the Convention on the Atmospheric Pollution Prevention of Ships (MARPOL Annex VI) and related regulations and then discharged into the atmosphere.
- MMPOL Annex VI Atmospheric Pollution Prevention of Ships
- step d) the ship sails in a sea area where the discharge of wash water is prohibited, so that the wash water generated in step a) is switched to storage in the ship’s water storage tank; step e) the ship sails again to the sea area where the wash water is allowed to be discharged, so that the ship stores The treated washing and drainage water stored in the water tank reaches the standard and discharges to the sea.
- Example 2 It is a group of examples based on Example 1.
- Step a) of an embodiment uses natural sea water as wash water to wash the engine exhaust gas.
- Step a) of another embodiment is to scrub the engine exhaust with fresh water.
- step a) is to wash the engine exhaust with seawater first and then with freshwater and then seawater, because the ship sails in the ocean first, then enters the inland river and then sails to the ocean to engage in river-sea combined transportation, but in most cases Wash only with natural sea water.
- Step a) of another embodiment is to wash engine exhaust gas with seawater, which is to make the seawater and exhaust gas form a large-area continuous air gap and a filling layer of a water film to achieve full gas-liquid efficient washing method.
- the seawater scrubs the engine exhaust gas to absorb the exhaust gas
- the sulfur dioxide in the process due to the continuous gas phase of this washing method, the exhaust gas flows smoothly and is in full contact with the washing seawater, so the washing desulfurization efficiency is high, and the amount of washing water required is small, so on the one hand, the ballast water tank temporarily used as a storage tank can occupy the ship The share of the total volume of the ballast water tank is small and the occupancy limit can be set, which is conducive to ensuring the safety of the ship's navigation.
- the operating cost (energy consumption) and fixed cost (occupied space) of the ship's sulfur limit order are low.
- Yet another embodiment is to embed the above-mentioned scrubber into a muffler to become a scrubber muffler with a muffler function, and to wash engine exhaust gas with wash water therein, so that the scrubber does not occupy additional space on the ship and further reduces the fixed cost of the ship.
- Example 3 It is a group of examples based on Example 1.
- step e) undergoes neutralization treatment, which is to neutralize and treat the stored acidic washing drainage water with the alkaline seawater extracted on the ship to meet the water quality standards required by the ship's washing water discharge regulations;
- the alkaline seawater extracted onto the ship includes natural seawater extracted from the sea in the ship's seawater main and/or natural seawater used for cooling of shipboard facilities; discharge regulations generally require that the pH value of the ship's wash water undergo acid-base neutralization treatment to reach 6.0
- the water quality standard of ⁇ 6.5 is allowed to be discharged into the sea; other water quality standards required by the discharge regulations for ship wash water discharge are stated in the relevant ship exhaust gas cleaning technical manual.
- step e) neutralizing and/or killing the washed and drained water stored in the ballast tank used by the ship as a water storage tank to meet the standard and discharged to the sea.
- the product neutralization treatment and biocide treatment meet the water quality standards required by the ship wash water discharge regulations and the ballast water discharge regulations, and are discharged into the sea;
- the chemical neutralization treatment is a chemical that injects alkaline chemicals into acidic wash water Neutralization treatment;
- the basic chemicals a group of examples are magnesium-based alkaline solution, calcium-based alkaline solution, sodium-based alkaline solution, and magnesium-based and calcium-based and sodium-based mixed alkaline solution; based on The law stipulates that all washing and drainage water that has been neutralized by chemicals must be pressed according to the rules of ballast water discharge before it can be discharged into the sea after ballast water biocide treatment.
- ballast water biocide treatment are acid Killing, ultraviolet killing, hypochlorous acid killing, ozone killing ship ballast water biological killing treatment method;
- the acid killing is a biological killing method that directly uses acid washing and drainage to store at low pH;
- the methods of ultraviolet killing, hypochlorous acid killing, and ozone killing are the existing methods of biological killing treatment of ship's ballast water;
- the water quality standards that meet the requirements of ship washing water discharge regulations are the same as the previous embodiment.
- the water quality standards that meet the requirements of ship ballast water discharge regulations are stated in the relevant ship ballast water treatment technical manual.
- step e) neutralizing and/or killing the washed and drained water stored in the ballast tank used by the ship as a water storage tank to meet the standard and discharged to the sea is to make the stored acid washed and drained water pass through the biological killing first After the treatment, it is neutralized with the alkaline seawater on the ship to meet the water quality standards required by the ship's wash water discharge regulations and ballast water discharge regulations, and then discharged into the sea.
- Embodiment 4 It is a group of embodiments based on Embodiment 1.
- the ballast water tank of the ship contains ballast water for adjusting the center of gravity and stability of the ship, and is an important facility to ensure the safe navigation of the ship.
- the volume of the ballast water tank that is washed and stored in the ship is used as a storage tank
- Embodiment 5 Another embodiment based on Embodiment 1 is that the washing and drainage is switched to be stored in the ballast tank used by the ship as a water storage tank, which is stored near the center of the ship plane below the ship's waterline Ballast water tank.
- Embodiment 6 It is a group of embodiments based on Embodiment 1.
- Step d) according to an embodiment, the treated washing and drainage of the ship’s water storage tank and/or ballast water tank used as a water storage tank is discharged to the standard, and the washing and drainage is stored for at least 10 minutes before being discharged into the sea . In another embodiment, the washing drainage is stored for at least 20 minutes before being discharged into the sea. In another embodiment, the storage time before washing and draining to the sea is at least 30 minutes. In another embodiment, the storage time before washing and draining to the sea is at least 45 minutes. In another embodiment, the storage time before washing and draining to the sea is at least 1 hour.
- one embodiment is the step d) causing the ship’s water storage tank and/or ballast water tank used as a water storage tank to store the treated washing and drainage water to the standard and discharging it to the sea.
- the storage time is at least 2 hours.
- the storage time before washing and draining to the sea is at least 3 hours.
- the storage time before the washing and drainage is discharged into the sea is at least 6 hours.
- the storage time before washing, draining and discharging into the sea is at least 12 hours.
- the storage time of the washing and drainage water before discharging into the sea is at least 24 hours.
- the storage time before the washing drainage is discharged into the sea is at least 36 hours and at least 48 hours, respectively.
- the storage time required for the washing drainage to be discharged into the sea is determined according to the sailing time required by the ship to pass through the area where the washing water is prohibited to discharge. For example, if the ship enters a prohibited washing water port area until it takes about 30 minutes to dock, the unilateral prohibition The voyage is about 30 minutes, and the storage time for ships entering and leaving the port washing water is about twice the banned voyage, which is 1 hour. Ships mooring auxiliary engines in the port have less emissions, while shore power is used without emissions.
- the wash water storage time that can be reached by the ship is determined by calculating the EGC wash water production volume and the water storage tank volume using existing technology.
- Embodiment 7 It is a basic embodiment of a ship technical solution used for the sea-boat clean navigation method of the present invention, and is also an example of the use of the sea-ship clean navigation method of Embodiment 1, as shown in FIG. 2 or the dotted line in FIG. 4
- the display switching corresponds to the operating condition shown in FIG.
- the ship of this embodiment uses the standard mode of IMO EGC (Exhaust Gas Cleaning) guidelines when sailing in seas where discharge of scrubbing water is generally allowed-only using natural seawater to scrub and drain the sea, that is, "open" operation of the EGC system, ship engine exhaust and scrubbed seawater Introduced into the scrubber 3 to wash engine exhaust gas with seawater, the generated acidic scrubber water enters the seawater neutralizer 5 through the discharge pipe 3.2, and in the seawater neutralizer 5 undergoes alkaline seawater neutralization treatment input with the neutralized seawater inlet pipe 5.1 After reaching the water quality standards required by the ship's wash water discharge regulations, the water is discharged into the sea from the standard wash water discharge port 5.5 through the open wash drainage shut-off valve 5.4;
- the seawater neutralizer 5 merges with the acidic wash water input from the scrubber 3 discharge pipe 3.2, and is neutralized with the alkaline seawater input from the neutralization seawater inlet pipe 5.1 until it reaches the water quality standards required by the ship wash water discharge regulations , Through the open washing and drainage cut-off valve 5.4 to discharge the sea from the standard washing water discharge port 5.5.
- the neutralization water pump 5.2 increases the flow rate as needed.
- connection channel described in this embodiment is achieved by the prior art of providing valves and/or pumps in the channel.
- the ship only uses seawater to wash the engine exhaust gas and treat the washing and drainage, and does not use alkaline chemicals, but it has a washing and drainage killing treatment device.
- the washing and drainage apply to the washing water discharge regulations of the ship and the ballast water discharge regulations and standards of the ship .
- Embodiment 8 It is a basic embodiment of another ship technical solution used for the sea boat clean sailing method of the present invention, and is also an example of use of the sea boat clean sailing method of Embodiment 1, as shown in FIG. 3 or FIG. 4
- the dotted line shows the switching corresponding to the working condition shown in Figure 3, which includes the hull 1, engine 2, scrubber 3, seawater neutralizer 5, chemical neutralizer 8, ballast water tank 4 used as a storage tank and its biological killing Extinguishing unit 4.2, as well as the standard wash water discharge port 5.5 and the standard ballast water discharge port 4.5;
- the exhaust pipe 2.1 of the engine 2 communicates with the chimney 7 through the scrubber 3;
- the scrubber 3 is connected with the wash water inlet pipe 3.1 and passes through the acid
- the washing water discharge pipe 3.2 is connected to the seawater neutralizer 5;
- the seawater neutralizer 5 is connected to the seawater neutralization inlet pipe 5.1, and is connected to the standard washing water discharge port 5.5 through the washing water discharge pipe 5.3;
- the ship of this embodiment uses the standard mode of IMO EGC (Exhaust Gas Cleaning) guidelines when sailing in seas where the discharge of wash water is generally allowed-using only natural sea water to wash and discharge the sea, that is, to operate the EGC system in "open" mode, ship engine exhaust and washing
- the seawater is introduced into the scrubber 3 and the engine exhaust gas is washed with seawater.
- the generated acidic scrubber water enters the seawater neutralizer 5 through the discharge pipe 3.2, and is neutralized in the seawater neutralizer 5 through the alkaline seawater input with the neutralization seawater inlet pipe 5.1 After processing to meet the water quality standards required by the ship's wash water discharge regulations, the sea will be discharged from the 5.5 wash water discharge port through the open wash drainage valve 5.4;
- the internal connection channel of the seawater neutralizer 5 and the ballast water tank 4 used as the storage tank is opened to allow the acid wash water to enter and be stored
- the chemical neutralizer 8 is opened to neutralize the acidic washing water with alkaline chemicals for chemical neutralization treatment
- the washing and drainage shut-off valve 5.4 is closed to neutralize the water pump 5.2 Shutdown, when no wash water is discharged into the ocean, the ship exhaust gas cleaning is switched to "closed" operation;
- ballast water drainage pump 4.4 Use the ballast water tank 4 used as a storage tank after the chemical neutralization treatment and biological killing treatment unit 4.2 kill After the biocidal treatment, the washing wastewater complying with the washing water discharge regulations and the ballast water discharge regulations is discharged into the sea from the ballast water discharge outlet up to the standard 4.5.
- connection channel described in this embodiment is achieved by the prior art of providing valves and/or pumps in the channel.
- Embodiment 9 It is a basic embodiment of another ship technical solution used in the sea-boat clean sailing method of the present invention, and is also a use embodiment of the sea-ship clean sailing method of embodiment 1, as shown in FIG. 5, which includes Hull 1, engine 2, scrubber 3, ballast water tank 4 used as a storage tank, seawater neutralizer 5, and scrubbing water discharge port 5.5 that meets the standard; the exhaust pipe 2.1 of engine 2 communicates with the chimney 7 through the scrubber 3 ;
- the scrubber 3 is connected to the wash water inlet pipe 3.1, and is connected to the seawater neutralizer 5 through the acidic wash water discharge pipe 3.2;
- the seawater neutralizer 5 is connected to the seawater neutralization inlet pipe 5.1, and is connected to the standard through the wash water discharge pipe 5.3
- the washing water discharge port 5.5; the seawater neutralizer 5 is also connected to the ballast water tank 4 serving as a water storage tank through a bidirectional delivery pipe 4.7.
- the desulfurization condition of using sea water to wash the tail gas remains unchanged, and the acid wash water generated at this time is introduced from the sea water neutralizer 5 through the bidirectional transmission pipeline 4.7 to the ballast used as the storage tank
- the water tank 4 is stored, and the washing and drainage shut-off valve 5.4 is closed, the neutralization pump 5.2 is shut down, no washing water is discharged to the ocean, and the ship exhaust gas cleaning is switched to "closed" operation.
- the ballast water tank is also used as a storage tank 4.
- the acidic wash water stored in the 4 is introduced into the seawater neutralizer 5 from the bidirectional transmission pipeline 4.7, and the neutralized seawater neutralized in the seawater neutralizer 5 is input to the neutralized seawater inlet pipe 5.1 to meet the requirements of the ship's washwater discharge regulations
- the water quality standard is discharged into the sea.
- the neutralizing water pump 5.2 increases the flow rate as needed.
- the conveying direction of the bidirectional channel 4.7 is realized by the prior art of providing valves and/or pumps in the channel.
- FIG. 6 is characterized by the combined arrangement of the seawater neutralizer 5 and the ballast water tank 4 used as a water storage tank, which simplifies the system but does not change the function.
- the ship only uses seawater to wash engine exhaust gas and treat washing and drainage, and does not use alkaline chemicals. Since the wash water prohibited discharge area on the ship route of this embodiment is very close to the permitted discharge sea area, the short storage time of the wash water is not considered to be ballast water in different sea areas, so no killing treatment is required, and the wash drainage is suitable for ship wash water Emission regulations and standards.
- Embodiment 10 It is a basic embodiment of another ship technical solution used in the sea-boat clean sailing method of the present invention, and is also an embodiment of the use of the sea-ship clean sailing method of embodiment 1, as shown in FIG. 7, which includes Hull 1, engine 2, scrubber 3, water storage tank 3.3 and seawater neutralizer 5, standard washing water discharge port 5.5; exhaust pipe 2.1 of engine 2 communicates with chimney 7 through scrubber 3; scrubber 3 is connected with wash water
- the water inlet pipe 3.1 is connected to the water storage tank 3.3 through the acid washing water discharge pipe 3.2; the water storage tank 3.3 is connected to the seawater neutralizer 5; the seawater neutralizer 5 is also connected to the neutralization seawater inlet pipe 5.1 and is connected through the wash water discharge pipe 5.3
- the discharge outlet of washing water up to the standard 5.5 The discharge outlet of washing water up to the standard 5.5.
- Another embodiment based on the above embodiment is the combined arrangement of the water storage tank 3.3 and the seawater neutralizer 5 as shown in FIG. 8.
- the ship only uses seawater to wash the engine exhaust gas and treat the washing and drainage, and does not use alkaline chemicals.
- This embodiment is similar to Embodiment 10.
- the area of the prohibited wash water discharge on the ship’s route is very close to the allowable discharge sea area. Water is not considered to be ballast water across the sea and does not require killing treatment. Washing and drainage are subject to ship wash water discharge regulations and standards.
- Example 11 A group of examples based on Examples 7, 8, 9, and 10 is a ballast water tank 4 and a water storage tank 3.3 which are used as water storage tanks, each of which has a volume for washing and drainage for at least 10 minutes and 20 minutes. , 30 minutes, 45 minutes, 1 hour, 2 hours, 3 hours, 6 hours, 12 hours, 24 hours, 36 hours, 48 hours part of the ballast water tank. All ballast water tanks used as water storage tanks are still used as general ballast water tanks when washing and drainage are not stored.
- Embodiment 12 is a group of embodiments based on embodiments 7, 8, 9, and 10.
- the ballast water tank 4 used as a water storage tank has a volume ratio of at least the volume of the ship's ballast water tank of at least 0.3%, or 0.5%, or 1%, or 2%, or 3%, or 4%, or 5%, or 10%, or 15%, or 20%, or 30%, or 40%, or 50% , Or 80%, and at most 0.3%, or 0.5%, or 1%, or 2%, or 3%, or 4%, or 5%, or 10%, or 15%, or 20%, or 30% , Or 40%, or 50%, or 80% part of the ballast water tank.
- ballast water tanks 4 used as water storage tanks are composed of ballast water tanks near the center point of the ship's plane below the ship's waterline. And the ballast water tank near the center point of the ship's plane below the ship's waterline.
- Embodiment 13 It is a group of embodiments based on Embodiment 8.
- the chemical neutralizer 8 installed on the ship is composed of a magnesium-based alkaline raw material storage tank and an alkaline solution conveyor.
- the magnesium-based alkaline raw material storage tank is a magnesium hydroxide liquid raw material tank, and the alkaline solution conveyor is made of alkali Solution pump and valve.
- the raw material storage tank of the chemical neutralizer 8 of another embodiment is composed of a magnesium oxide solid raw material tank and an alkaline solution generation tank.
- a chemical neutralizer 8 is composed of a calcium oxide solid raw material tank, an alkaline solution generating tank, and an alkaline solution metering pump.
- the chemical neutralizer 8 is composed of a sodium hydroxide solution storage tank and an alkaline solution metering pump and a valve; the sodium hydroxide solution storage tank stores sodium hydroxide at a concentration of 10% to 60% In the alkaline solution, the sodium hydroxide concentration in the storage tank is 30% to 50% in most cases, and the sodium hydroxide concentration in the high-latitude sea area is 20% when the solution is prevented from freezing.
- the chemical neutralizer configured in the above embodiment selects the existing industrial conventional alkaline agent addition device, which has a small volume and a low input cost.
- Embodiment 14 It is a group of embodiments based on Embodiments 7 and 8.
- the biocide treatment unit 4.2 installed in one embodiment is composed of the ultraviolet biocide device of the ship's existing ballast water treatment system.
- the biocide treatment unit 4.2 installed in another embodiment is composed of the ozone biocide device of the ship's existing ballast water treatment system.
- the biocide treatment unit 4.2 installed in another embodiment is composed of the sodium hypochlorite biocide device of the ship's existing ballast water treatment system.
- the biological killing treatment unit 4.2 of the ship in the above embodiment is a biological killing treatment device of the existing ship ballast water treatment system.
- the ship's biocidal treatment unit consists of an acid biocidal device, based on the survival time of the organism in a low pH solution (such as pH 3). 20 minutes) designed to directly use the scrubber acid drainage storage device for biocide, so the ship's ballast water tank 4 used as a storage tank is considered to be arranged in conjunction with the biocide unit 4.2.
- the water storage tank 3.3 is considered to be arranged in combination with the biocidal unit 4.2.
- Embodiment 15 It is a group of embodiments on the basis of Embodiment 6 or Embodiment 7.
- the installed scrubber 3 is a cavity filled with a filler with a large continuous air gap and a water film, ie, a wetted surface, to pass through
- the gas-liquid fully contacted filler scrubber for efficient desulfurization where the fillers are respectively ring-shaped, spherical, strip-shaped, saddle-shaped, polygonal and orifice-shaped fillers, and there is a multi-component Shaped filler.
- the use of a filler with a large continuous air gap and a wet surface for washing can make the removal of sulfur dioxide with high efficiency and less washing water required.
- This aspect is conducive to the use of the ballast water tank temporarily used as a storage tank to occupy the ship’s ballast water tank.
- the quota of the total volume is set so as not to affect the navigation safety of the ship, on the other hand, the operating cost (energy consumption) and fixed cost (occupied space) of the ship’s sulfur limit order can be lower.
- the scrubber 3 installed in another embodiment is a cavity spray scrubber.
- the scrubber 3 includes a filler and a venturi spray unit and a blister scrubber.
- the scrubbers installed in the above embodiments are all existing types of scrubbers in the chemical industry.
- the scrubber 3 installed is a scrubber with a muffler function embedded in a muffler, which can have a high washing efficiency and a small volume under seawater and/or freshwater washing conditions, thereby being able to muffle the sound. , And can efficiently clean the exhaust gas, the key is not to occupy additional ship space, further reducing the ship's fixed cost and operating cost.
- Example 16 It is an example of the use of the sea-boat clean navigation method of Example 1.
- the ship of this example is an ocean tanker, 40,200 DWT, engine power 8,580KW, fuel Heavy diesel fuel with sulphur 3.5% (380CST); the total volume of ballast water tank is 20,650m 3 , the ship's regular route is about 6,000 kilometers one way, and there is a port area that prohibits the discharge of washing water.
- ballast tank used as a water storage tank is composed of a space separated by approximately 1,000 m 3 near the center point of the ship's plane below the ship's waterline, and this volume accounts for the ship
- the limit of the share of the total volume of the ballast tank is set at 0.3% to 5%.
- the exhaust gas cleaning method of the ship sailing in most sea areas including the high seas in this embodiment adopts the economic operation mode of washing the sea with only sea water, and the required energy consumption is about 1% of the corresponding engine power; During the sea area of the water port area, it was switched to the temporary storage of washing and drainage for the ballast water tank used as the storage tank.
- the ship of this embodiment adopts an efficient packing washing design, and the amount of washing water generated per hour of full-load voyage is about 0.5% of the total volume of the ballast water tank.
- the set storage tank volume can ensure that the 2.5-hour wash water is prohibited from being used in the voyage;
- the main engine is shut down, only the auxiliary engine is running or even shut down (using shore power); after leaving the port and leaving the prohibited wash water area, the bio-killing water drainage pump will be activated and temporarily stored in the ballast tank
- the acidic washing water is biologically killed to meet the water quality standards of the ballast water discharge regulations and then sent to the seawater neutralizer, and is neutralized with the imported alkaline seawater until it reaches the pH value standard of the IMO regulations for EGC drainage requirements.
- To the sea other discharge water quality indicators are guaranteed by the existing technology, neutralize the pump to increase the flow during the emptying of the stored acid wash water.
- the EGC system has switched back to seawater washing and draining mode.
- the energy consumption of exhaust gas cleaning for the entire voyage of the ship basically remains unchanged at 1% of the corresponding engine power, and alkaline chemicals are not used.
- ship wash water discharge regulations and ship ballast water discharge regulations and standards are applicable.
- Embodiment 17 It is another embodiment of the use of the sea-boat clean sailing method of Embodiment 1.
- the ship of this embodiment is an ocean-going bulk carrier, 180,000 dwt, engine power 15MW, fueled with 3.5% sulfur-containing heavy diesel oil (380CST), total ballast water tank volume of 90,650m 3 , about 10,000 kilometers one-way on regular routes, and one port area where washing water is prohibited Hours, according to the 4.5-hour round trip schedule of wash water ban.
- the ship is sailing in general seas such as the high seas, and the standard mode of IMO EGC guidelines is adopted.
- the exhaust gas cleaner is operated only by seawater washing and discharging; during the entry and exit of the prohibited drainage water port area, it is switched to washing and drainage storage for storage.
- the ballast tank of the water tank does not discharge the sea; the ship of this embodiment adopts an efficient packing washing design, and the amount of washing water generated per hour of full-load voyage is about 1% of the total volume of the ballast water tank.
- the water volume is about 4.5% of the total volume of the ballast tank.
- the share of the volume of the ballast tank used as the water storage tank in the total volume of the ship's ballast tank is set to 2 levels, the first level is 5% to 10%, which can ensure that 4.5 hours of wash water is prohibited to use in the voyage; second The range is 10% to 50%, and can store more than 48 hours of washing and drainage when needed; for this purpose, the ballast water tank used as a water storage tank is a plurality of ballast water tanks near the center of the ship's plane below the ship's waterline The connection structure, each ballast water tank used as a water storage tank is still used as a general ballast water tank when the washing and drainage are not stored.
- the washing and drainage stored in the ballast tank of the ship used as the water storage tank of this embodiment undergoes chemical neutralization treatment and biocide treatment.
- the chemical neutralization process is realized by a chemical neutralizer composed of a 30% strength sodium hydroxide solution tank and an alkali metering pump. Only a small amount of alkaline chemical is used for a short time; the chemical neutralizer is used as a water storage tank.
- the ballast water tank is connected and opened when the wash water enters the ballast water tank, so that the acidic wash water is neutralized by alkaline chemicals, and is beneficial to the ballast water tank to prevent chemical corrosion.
- the biocide treatment is done using the biocide device of the original ballast water treatment system on the ship.
- the ballast water drainage pump is started to use the ballast water tank as the storage tank.
- the wash water stored in the storage tank that has undergone chemical neutralization treatment and biocide treatment and complies with the wash water discharge regulations and ballast water discharge regulations will be discharged into the sea from the ballast water discharge outlet that meets the standards.
- the EGC system switches back to the seawater washing and discharging operation mode.
- the energy consumption of the full-range tail gas cleaning of the ship is about 1.5% of the corresponding engine power
- the washing and drainage regulations are applicable to the regulations for washing water discharge and the regulations and standards for discharging ballast water.
- Embodiment 18 It is a group of basic embodiments of another method for safely cleaning ship exhaust gas of the present invention. As shown in FIG. 9, the steps of an embodiment include a) introducing the ship engine exhaust gas and wash water into the scrubber. Scrubbing water scrubs engine exhaust to absorb sulfur dioxide in the exhaust;
- Embodiment 19 an embodiment based on Embodiment 18, the opening gas pressure of the water seal of the scrubber in step c) is equal to the upper limit value of the safety air pressure of the scrubber.
- the washing water enters the container communicating with the atmosphere through the water seal of the scrubber.
- the water seal is automatically opened, and the exhaust gas is switched into the container communicating with the atmosphere.
- the bypass channel is formed in the way, and the flow capacity of the water seal of the scrubber allows the engine exhaust gas to circulate safely, ensuring the safe operation of the engine; this one is to maintain the water level of the water seal of the scrubber sump to prevent the wash water from entering the engine smoke
- the path prevents the exhaust from flowing smoothly; second, bypass exhaust gas in the event of a washer blockage to keep the engine exhaust safe; third, prevent the introduction of traditional bypass dampers (double-disc, sealed fan) to avoid indestructible suffocation to the engine safety The fatal risk of the engine.
- Example 20 An example based on Example 18. It includes hull 1, engine 2, scrubber 3, water-air balance bypass box 3.7, seawater neutralizer 5; engine 2 is installed in the lower part of hull 1, the exhaust channel 2.1 of engine 2 is connected to the inlet of scrubber 3; washing The device 3 includes a sump 3.5 and a water seal 3.6; the water-gas balance bypass box 3.7 includes an emptying channel 3.8, the water-gas inlet of the water-gas balance bypass box 3.7 is connected to the water seal 3.6, and the water-gas balance bypass box The water outlet of 3.7 is connected to the seawater neutralizer 5.
- Embodiment 21 An embodiment based on Embodiment 20, in which the scrubber 3 and the water-air balance bypass tank 3.7 are made of high-temperature-resistant materials.
- Embodiment 22 It is an embodiment based on Embodiment 20, and its water seal 3.6 is a water seal with a structure that allows a safe circulation of engine exhaust gas.
- Embodiment 23 is an embodiment based on Embodiment 20, and the water seal 3.6 is a water seal composed of a water seal structure having a water column height equal to the upper limit value of the safety air pressure of the scrubber.
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Abstract
Description
Claims (26)
- 一种海船清洁航行方法,其特征在于,步骤包括:a)用海水洗涤发动机尾气并产生洗涤海水;b)开式运行洗涤海水处理,包括:将所述洗涤海水进行开式运行中和处理;和/或c)闭式运行洗涤海水处理,包括:i)将所述洗涤海水储存到储水容器,以及ii)将所述洗涤海水进行闭式运行中和处理。
- 如权利要求1所述的方法,其特征在于,所述储水容器包括压载水舱。
- 如权利要求2所述的方法,其特征在于,所述方法还包括:将所述洗涤海水与所述压载水舱中的压载水进行混合。
- 如权利要求1所述的方法,其特征在于,所述方法还包括:将所述洗涤海水储存到储水容器并用作压载水。
- 如权利要求1所述的方法,其特征在于,步骤i)在步骤ii)之前进行;或者,步骤i)在步骤ii)之后进行;或者,步骤i)和步骤ii)同时进行。
- 如权利要求1所述的方法,其特征在于,所述方法还包括:提供开闭式运行中和设备,所述开式运行中和处理和闭式运行中和处理都在所述中和设备中进行。
- 如权利要求1所述的方法,其特征在于,所述方法还包括:提供开式运行中和设备和闭式运行中和设备,所述开式运行中和处理在所述开式运行中和设备中进行,所述闭式运行中和处理在所述闭式运行中和设备中进行。
- 如权利要求1所述的方法,其特征在于,所述方法还包括:提供开式运行中和设备,所述开式运行中和处理在所述开式运行中和设备中进行,所述闭式运行中和处理在所述储水容器中进行。
- 如权利要求1所述的方法,其特征在于,所述开式运行中和处理包括:混合所述洗涤海水与天然海水,和/或,混合所述洗涤海水与碱性化合物;所述闭式运行中和处理包括:混合所述洗涤海水与天然海水,和/或,混合所述洗涤海水与碱性化学品。
- 如权利要求9所述的方法,其特征在于,所述碱性化学品选自镁基碱性化学品、钙基碱性化学品、钠基碱性化学品或其组合。
- 如权利要求1所述的方法,其特征在于,所述闭式运行洗涤海水处理还包括:iii)将所述洗涤海水进行杀活处理。
- 如权利要求11所述的方法,其特征在于,所述杀活处理包括:紫外线杀灭处理、和/或次氯酸杀灭处理、和/或臭氧杀灭处理。
- 如权利要求1所述的方法,其特征在于,所述储水容器的内壁以及用于将所述洗 涤海水输送到所述储水容器的管道和泵的内壁防酸腐蚀。
- 用于执行权利要求1所述的方法的船舶,其特征在于,所述船舶包括:洗涤器,在所述洗涤器中用海水洗涤所述尾气并产生洗涤海水;和储水容器。
- 如权利要求14所述的船舶,其特征在于,所述储水容器位于船舶水线下方船舶平面中心点近旁。
- 如权利要求14所述的船舶,其特征在于,所述船舶还包括开闭式运行中和设备,所述开式运行中和处理和闭式运行中和处理都在所述开闭式中和设备中进行。
- 如权利要求16所述的船舶,其特征在于,所述船舶还包括天然海水供给设备,所述天然海水供给设备被配置用于给所述开闭式运行中和设备提供中和处理用的天然海水。
- 如权利要求16所述的船舶,其特征在于,所述船舶还包括碱性化合物供给设备,所述碱性化合物供给设备被配置用于给所述开闭式运行中和设备提供中和处理用的碱性化合物。
- 如权利要求14所述的船舶,其特征在于,所述船舶还包括开式运行中和设备和闭式运行中和设备,所述开式运行中和处理在所述开式运行中和设备中进行,所述闭式运行中和处理在所述闭式运行中和设备中进行。
- 如权利要求19所述的船舶,其特征在于,所述船舶还包括天然海水供给设备,所述天然海水供给设备被配置用于给所述开式运行中和设备和/或闭式运行中和设备提供中和处理用的天然海水。
- 如权利要求19所述的船舶,其特征在于,所述船舶还包括碱性化合物供给设备,所述碱性化合物供给设备被配置用于给所述开式运行中和设备和/或闭式运行中和设备提供中和处理用的碱性化合物。
- 如权利要求14所述的船舶,其特征在于,所述船舶还包括开式运行中和设备,所述开式运行中和处理在所述开式运行中和设备中进行,所述闭式运行中和处理在所述储水容器中进行。
- 如权利要求22所述的船舶,其特征在于,所述船舶还包括天然海水供给设备,所述天然海水供给设备被配置用于给所述开式运行中和设备和/或储水容器提供中和处理用的天然海水。
- 如权利要求22所述的船舶,其特征在于,所述船舶还包括碱性化合物供给设备,所述碱性化合物供给设备被配置用于给所述开式运行中和设备和/或储水容器提供中和处理用的碱性化合物。
- 如权利要求14所述的船舶,其特征在于,所述船舶还包括杀活处理设备,所述杀活处理设备包括紫外线杀灭处理装置、和/或次氯酸杀灭处理装置、和/或臭氧杀灭处理装置。
- 如权利要求14所述的船舶,其特征在于,所述洗涤器中填充有用于增大海水与尾气的接触面积的填料。
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SG11202107524VA SG11202107524VA (en) | 2019-01-10 | 2020-01-06 | A process for clean sailing of marine ship and a ship |
AU2020207174A AU2020207174A1 (en) | 2019-01-10 | 2020-01-06 | Seagoing vessel clean sailing method and vessel |
US17/421,842 US20220105460A1 (en) | 2019-01-10 | 2020-01-06 | A process for clean sailing of marine ship and a ship |
KR1020217024469A KR20210137436A (ko) | 2019-01-10 | 2020-01-06 | 항해선의 친환경 운항방법 및 선박 |
CN202080008111.0A CN113966313A (zh) | 2019-01-10 | 2020-01-06 | 海船清洁航行方法及船舶 |
CA3125772A CA3125772A1 (en) | 2019-01-10 | 2020-01-06 | A process for clean sailing of marine ship and a ship |
EP20737994.2A EP3909920A4 (en) | 2019-01-10 | 2020-01-06 | CLEAN SAILING PROCEDURES FOR A SEA SHIP AND VESSEL |
JP2021540084A JP2022517219A (ja) | 2019-01-10 | 2020-01-06 | 船舶の排出物が削減された航行のための方法及び船舶 |
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CN201910030414.1 | 2019-01-14 | ||
CN201910039789.4A CN109603548A (zh) | 2019-01-10 | 2019-01-16 | 一种船舶尾气清洗方法及船舶 |
CN201910039789.4 | 2019-01-16 | ||
CN2019076278 | 2019-02-27 | ||
CNPCT/CN2019/076278 | 2019-02-27 | ||
CNPCT/CN2019/077445 | 2019-03-08 | ||
PCT/CN2019/077445 WO2020143112A1 (zh) | 2019-01-10 | 2019-03-08 | 一种海船尾气清洗方法和船舶及应用 |
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PCT/CN2020/070485 WO2020143578A1 (zh) | 2019-01-10 | 2020-01-06 | 海船清洁航行方法及船舶 |
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US (1) | US20220105460A1 (zh) |
EP (1) | EP3909920A4 (zh) |
JP (1) | JP2022517219A (zh) |
KR (1) | KR20210137436A (zh) |
CN (1) | CN113966313A (zh) |
AU (1) | AU2020207174A1 (zh) |
CA (1) | CA3125772A1 (zh) |
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WO2022249611A1 (ja) * | 2021-05-27 | 2022-12-01 | 富士電機株式会社 | 排ガス処理装置 |
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- 2020-01-06 JP JP2021540084A patent/JP2022517219A/ja active Pending
- 2020-01-06 WO PCT/CN2020/070485 patent/WO2020143578A1/zh unknown
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- 2020-01-06 CN CN202080008111.0A patent/CN113966313A/zh active Pending
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CA3125772A1 (en) | 2020-07-16 |
AU2020207174A1 (en) | 2021-08-26 |
EP3909920A1 (en) | 2021-11-17 |
US20220105460A1 (en) | 2022-04-07 |
KR20210137436A (ko) | 2021-11-17 |
SG11202107524VA (en) | 2021-08-30 |
CN113966313A (zh) | 2022-01-21 |
EP3909920A4 (en) | 2022-09-21 |
JP2022517219A (ja) | 2022-03-07 |
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