WO2023231199A1 - 船舶废气再循环废水处理系统及船舶 - Google Patents

船舶废气再循环废水处理系统及船舶 Download PDF

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Publication number
WO2023231199A1
WO2023231199A1 PCT/CN2022/115345 CN2022115345W WO2023231199A1 WO 2023231199 A1 WO2023231199 A1 WO 2023231199A1 CN 2022115345 W CN2022115345 W CN 2022115345W WO 2023231199 A1 WO2023231199 A1 WO 2023231199A1
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WIPO (PCT)
Prior art keywords
wastewater
waste water
oil
acidic
cabinet
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PCT/CN2022/115345
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English (en)
French (fr)
Inventor
蔡少林
安丽
段振
张文博
吴朝晖
陶国华
李大保
刘博�
刘利军
张继光
韩连任
周秀亚
田新娜
王雁冰
王园
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中船动力研究院有限公司
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Publication of WO2023231199A1 publication Critical patent/WO2023231199A1/zh

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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
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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
    • C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
    • 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

Definitions

  • Embodiments of the present application relate to the technical field of wastewater treatment, for example, to a ship exhaust gas recirculation wastewater treatment system and a ship.
  • exhaust gas recirculation systems In order to improve diesel engine performance and reduce diesel engine exhaust emissions, engine developers have designed exhaust gas recirculation systems. Among them, the working process of the exhaust gas recirculation system is: before the exhaust gas is circulated and input into the cylinder, fresh water is used to wash it to reduce the temperature of the flue gas and remove particulate matter in the flue gas.
  • the washed wastewater contains SOx, NOx, oil and particulate matter in the exhaust gas, which will form an acidic, oily and high turbidity wastewater. Since the exhaust gas washing water is used in a closed circulation system, the exhaust gas washing water needs to maintain a certain overflow volume, so that the excess water condensed out of the exhaust gas due to cooling can be discharged. At the same time, it can also limit the increase in the concentration of oil and particulate matter in the circulating water.
  • Embodiments of the present application provide a ship exhaust gas recirculation wastewater treatment system and a ship.
  • embodiments of the present application provide a ship exhaust gas recirculation wastewater treatment system, which includes: a neutralization device, a wastewater storage device, a wastewater treatment device, a filtering device and a wastewater detection device;
  • the neutralization device is connected to the wastewater pipe, the condensate pipe and the wastewater storage device, the wastewater storage device is connected to the wastewater treatment device and the wastewater detection device, the wastewater treatment device is connected to the filtering device, and the filtering device is connected to the wastewater detection device;
  • the neutralization device is configured to neutralize the wastewater flowing out of the wastewater pipe and the condenser water pipe to obtain non-acidic wastewater;
  • the wastewater storage device is configured to store non-acidic wastewater;
  • the wastewater treatment device is configured to remove the non-acidic wastewater through flocculation and flotation.
  • the oil residue and impurities in the oil residue are removed, and the first-level oil removal residue wastewater is obtained;
  • the filtering device is set to filter the first-level oil removal residue wastewater, and the second-level oil removal residue wastewater is obtained;
  • the wastewater detection device is set to detect non-acidic wastewater or the second-level oil removal residue wastewater. Whether the wastewater meets the discharge standards, and if the non-acidic wastewater or secondary oil removal residue wastewater meets the discharge standards, the non-acidic wastewater or secondary oil removal residue wastewater will be discharged.
  • embodiments of the present application also provide a ship, which includes any of the ship exhaust gas recirculation wastewater treatment systems proposed in the above embodiments.
  • Figure 1 is a schematic structural diagram of a ship exhaust gas recirculation wastewater treatment system provided by an embodiment of the present application
  • Figure 2 is a schematic structural diagram of a neutralization device provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a wastewater storage device provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a wastewater treatment device provided by an embodiment of the present application.
  • Figure 5 is a schematic structural diagram of a filtering device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a wastewater detection device provided by an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of another ship exhaust gas recirculation wastewater treatment system provided by the embodiment of the present application.
  • Figure 8 is a schematic structural diagram of a ship provided by an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a ship exhaust gas recycling wastewater treatment system provided by the embodiment of the present application.
  • the ship exhaust gas recycling wastewater The treatment system includes: a neutralization device 110, a wastewater storage device 120, a wastewater treatment device 130, a filtering device 140 and a wastewater detection device 150; the neutralization device 110 is connected to the wastewater pipe, the condensate pipe and the wastewater storage device 120, and the wastewater storage device 120 is connected to the wastewater pipe.
  • the wastewater treatment device 130 is connected to the wastewater detection device 150, the wastewater treatment device 130 is connected to the filtering device 140, and the filtering device 140 is connected to the wastewater detection device 150; the neutralization device 110 is configured to neutralize the wastewater flowing out of the wastewater pipe and the condenser water pipe.
  • the wastewater storage device 120 is configured to store non-acidic wastewater
  • the wastewater treatment device 130 is configured to remove oil residue and impurities in the non-acidic wastewater through flocculation and flotation to obtain first-level oil residue wastewater
  • filter The device 140 is configured to filter the first-level degreasing wastewater to obtain the second-level degreasing wastewater
  • the wastewater detection device 150 is set to detect whether the non-acidic wastewater or the second-level degreasing wastewater meets the discharge standards, and detect whether the non-acidic wastewater or the second-level degreasing wastewater meets the discharge standards. If the oil removal wastewater meets the discharge standards, non-acidic wastewater or secondary oil removal wastewater will be discharged.
  • the wastewater pipe will discharge the excess wastewater generated when washing the exhaust gas.
  • the waste water discharged from the condensate pipe is formed by the condensation of moisture in the air and exhaust gas.
  • the wastewater discharged from the wastewater pipe and the wastewater discharged from the condenser water pipe contain sulfur oxides, nitrogen oxides, carbon dioxide, oil and particulate matter in the exhaust gas. Therefore, the wastewater discharged from the wastewater pipe and the wastewater discharged from the condenser water pipe are acidic. , containing oil and high turbidity.
  • the wastewater discharged from the wastewater pipes and condensate pipes at this time does not meet the emission standards. It needs to be treated by the ship's exhaust gas recirculation wastewater treatment system and meets certain standards before it can be discharged to avoid polluting the environment.
  • the working process of the ship exhaust gas recirculation wastewater treatment system is: when the ship starts the wastewater treatment system, the wastewater discharged from the wastewater pipe and the condensate pipe flows into the neutralization device 110. Since the wastewater is acidic, it will corrode its storage device. At this time, the neutralization device 110 can neutralize the wastewater flowing out of the wastewater pipe and the condenser water pipe, so that the wastewater loses its corrosiveness and obtains non-acidic wastewater. When the non-acidic wastewater reaches a certain storage volume in the neutralization device 110, it will overflow from the neutralization device 110 into the wastewater storage device 120. After the non-acidic wastewater flows into the wastewater storage device 120, the non-acidic wastewater will be provided to the wastewater detection device 150 for detection.
  • the wastewater detection device 150 If the non-acidic wastewater passes the wastewater detection device 150 and passes the detection, it can be directly discharged. If the non-acidic wastewater fails to pass the wastewater detection device 150, the wastewater detection device 150 will re-discharge the non-acidic wastewater into the wastewater storage device 120. At the same time, the wastewater storage device 120 will provide the non-acidic wastewater to the wastewater treatment device 130 for preliminary treatment.
  • the wastewater treatment device 130 can remove most of the oil residue and impurities mixed in the non-acidic wastewater through flocculation and air flotation to obtain first-level oil residue wastewater. After the wastewater treatment device 130 completes the preliminary treatment of the non-acidic wastewater to obtain the first-level degreasing wastewater, the first-level degreasing wastewater will be discharged to the filtering device 140 for further treatment.
  • the filtering device 140 filters the primary oil removal wastewater and can further remove a small amount of oil residue and impurities remaining in the primary oil removal wastewater to obtain the secondary oil removal wastewater. After the filtering device 140 further processes the primary oil removal wastewater to obtain the secondary oil removal wastewater, it will discharge the secondary oil removal wastewater to the wastewater detection device 150 for detection. If the secondary oil removal wastewater passes through the wastewater detection device After passing the 150 test, it can be discharged from the ship. If the secondary degreasing residue wastewater fails to pass the detection by the wastewater detection device 150 , the wastewater detection device 150 will re-discharge the secondary degreasing residue wastewater into the wastewater storage device 120 . The wastewater storage device 120 will re-supply the stored wastewater (mixed wastewater of non-acidic wastewater and secondary degreasing residue wastewater) to the wastewater treatment device 130 for preliminary treatment until the wastewater detection device 150 passes the test and is discharged from the ship.
  • the ship exhaust gas recirculation wastewater treatment system of the embodiment of the present application can remove the acidity of the wastewater flowing out of the wastewater pipe and the condenser water pipe through a neutralization device to obtain non-acidic wastewater.
  • the wastewater storage device can store non-acidic wastewater, provide the non-acidic wastewater to the wastewater detection device for detection, and provide the non-acidic wastewater to the wastewater treatment device for treatment if the non-acidic detection fails.
  • the wastewater treatment device can initially remove most of the oil residue and impurities in non-acidic wastewater to obtain first-level oil residue wastewater.
  • the filtration device can further filter out the remaining oil residue and impurities in the primary oil removal wastewater to obtain the secondary oil removal wastewater.
  • the wastewater detection device can detect whether the non-acidic wastewater or secondary oil removal residue wastewater meets the discharge standards, and discharge the non-acidic wastewater or secondary oil removal residue wastewater if the non-acidic wastewater or secondary oil removal residue wastewater meets the discharge standards. , when the non-acidic wastewater or secondary oil removal residue wastewater meets the discharge standards, the non-acidic wastewater or secondary oil removal residue wastewater will be re-discharged into the wastewater storage device for continued treatment. It can be seen from this that this embodiment can circulate wastewater to remove oil residue and impurities until the wastewater detection device passes the test and is discharged from the ship. That is, the wastewater discharged from the ship meets the specification requirements before it can be discharged from the ship.
  • FIG. 2 is a schematic structural diagram of a neutralization device provided by an embodiment of the present application.
  • the neutralization device includes a neutralization cabinet 111, a first mixer 112, a first pH sensor 113, an alkali liquid cabinet 114, Alkali pump 115 and emergency alkali pump 116;
  • the first mixer 112 is installed in the neutralization cabinet 111, the detection end of the first PH sensor 113 is inserted into the neutralization cabinet 111, the waste water pipe and the condensate pipe are connected to the first mixer 112
  • the alkali liquid cabinet 114 is connected to the first mixer 112 through the alkali liquid pump 115, the first pH sensor 113 is electrically connected to the alkali liquid pump 115, the neutralization cabinet 111 is connected to the wastewater storage device 120, and the alkali liquid cabinet 114 is connected to the first mixer 112 through the emergency alkali liquid pump 115.
  • the liquid pump 116 is connected to the wastewater storage device 120; the first mixer 112 is configured to neutralize the wastewater flowing out of the wastewater pipe and the condensed water pipe and the alkali liquid flowing out of the alkali liquid tank 114 to obtain non-acidic wastewater; the neutralization cabinet 111 is configured to Non-acidic wastewater is stored; the first pH sensor 113 is configured to detect the pH of the non-acidic wastewater and control the working state of the alkali pump 115 according to the pH value; the emergency alkali pump 116 is configured to add alkali to the wastewater storage device 120 .
  • the wastewater discharged from the wastewater pipe and the condensate pipe flows into the first mixer 112, and the alkali liquid and wastewater in the first mixer 112 are fully mixed and undergo a neutralization reaction to turn into non-acidic wastewater. And flows into the neutralization cabinet 111.
  • the first pH sensor 113 will always detect the pH value of the non-acidic wastewater in the neutralization cabinet 111.
  • the first pH sensor 113 will start the alkali liquid pump 115, so that the alkali liquid cabinet 114 The alkali solution inside is pumped into the first mixer 112 by the alkali solution pump 115 to realize closed-loop control of the alkali solution dosage to adjust the pH value of the incoming wastewater or the non-acidic wastewater stored in the neutralization cabinet 111.
  • the non-acidic wastewater stored in the neutralization cabinet 111 reaches a certain storage volume, the non-acidic wastewater stored in the neutralization cabinet 111 will overflow into the wastewater storage device 120 .
  • FIG 3 is a schematic structural diagram of a wastewater storage device provided by an embodiment of the present application.
  • the wastewater storage device includes a wastewater tank 121, a wastewater pump 122, a first direct discharge valve 123, a wastewater treatment valve 124 and a second PH sensor 125; the detection end of the second PH sensor 125 is inserted into the wastewater tank 121.
  • the wastewater tank 121 is connected to the wastewater detection device 150 through the wastewater pump 122 and the first direct discharge valve 123; the wastewater tank 121 passes through the wastewater pump 122 and the wastewater treatment valve.
  • the wastewater tank 121 is configured to store non-acidic wastewater
  • the second pH sensor 125 is configured to detect the pH of the non-acidic wastewater
  • the wastewater pump 122 is configured to drain the wastewater tank 121 during the opening of the first direct drain valve 123.
  • the non-acidic wastewater in the wastewater tank 121 is transmitted to the wastewater detection device 150, and during the opening of the wastewater treatment valve 124, the non-acidic wastewater in the wastewater tank 121 is transmitted to the wastewater treatment device 130.
  • the wastewater pump 122 and the first direct discharge valve 123 need to be opened first.
  • the wastewater pump 122 can provide the non-acidic wastewater stored in the wastewater tank 121 to the wastewater detection device 150 for detection. If the non-acidic wastewater passes the wastewater detection device 150 and passes the test, it means that the content of oil residue and impurities in the non-acidic wastewater generated at this time is very low and meets the wastewater discharge requirements, and the non-acidic wastewater can be directly discharged. If the non-acidic wastewater fails to pass the wastewater detection device 150, the wastewater detection device 150 will re-discharge the non-acidic wastewater into the wastewater tank 121.
  • the wastewater pump 122 and the wastewater treatment valve 124 are opened, and the wastewater pump 122 can store the wastewater in the wastewater tank 121.
  • the non-acidic wastewater is provided to the wastewater treatment device 130 for preliminary treatment.
  • the second pH sensor 125 will always detect the pH value of the non-acidic wastewater in the wastewater tank 121. Once the pH value of the non-acidic wastewater is less than a certain value, an alarm will be issued to remind the staff to open the emergency alkali pump to the wastewater storage device. Add alkali solution to adjust the pH value of non-acidic wastewater stored in the wastewater storage device.
  • FIG 4 is a schematic structural diagram of a wastewater treatment device provided by an embodiment of the present application.
  • the wastewater treatment device includes a first doser 131, a second mixer 132, an air tank 133, and an air flotation generator 134.
  • the vertical flow air flotation well 135 is partially inserted into the air flotation barrel 136, and the air flotation generator 134 is arranged at one end of the vertical flow air flotation well 135 located outside the air flotation barrel 136; the second mixing The second mixer 132 is connected with the first doser 131, one end of the second mixer 132 and the connecting pipe of the first doser 131 are connected with the wastewater storage device 120, and the other end of the second mixer 132 is located with the vertical flow air flotation well 135.
  • the second mixer 132 is configured to provide flocculant to the second mixer 132 , the second mixer 132 is configured to mix the non-acidic wastewater and the flocculant in the wastewater storage device 120 to produce floc, and the air tank 133 is configured to provide the air flotation generator 134
  • the compressed air generates bubbles
  • the vertical flow air flotation well 135 is set to fully combine the bubbles and floc to produce air flotation
  • the air flotation barrel 136 is set to separate the air flotation, impurities and first-level degreasing residue wastewater.
  • the first doser 131 adds the flocculant to the transfer pipe.
  • the non-acidic wastewater containing chemicals enters the second mixer 132, and the oil residue, impurities and flocculants in the non-acidic wastewater can be fully mixed to produce flocs.
  • the second mixer 132 transports the non-acidic wastewater containing flocs to the vertical air flotation well.
  • the compressed air in the compressed air pipe is introduced into the air tank 133 and transferred to the air flotation generator 134 via the air tank 133 .
  • the air flotation generator 134 can generate bubbles to fully combine the bubbles and floc in the vertical flow air flotation well 135 to form an air flotation body with a smaller density.
  • the air flotation barrel 136 can separate air flotation bodies, impurities and primary degreasing residue wastewater. Among them, the air flotation body floats to the top of the air flotation barrel 136, and the first-level degreasing residue wastewater is located in the lower layer of the air flotation body.
  • the air flotation barrel 136 will transfer the first-level degreasing wastewater to the filtering device 140, so that the filtering device 140 can further remove residual oil stains and impurities in the first-level degreasing wastewater.
  • FIG. 5 is a schematic structural diagram of a filtering device provided by an embodiment of the present application.
  • the filtering device includes a high-precision filter paper 141 and an adsorption bucket 142; one end of the high-precision filter paper 141 is connected to the wastewater treatment device 130.
  • the high-precision filter paper 141 is connected to the wastewater treatment device 130.
  • the other end of the filter paper 141 is connected to the first drain port and the second drain port of the adsorption bucket 142.
  • the first drain port of the adsorption bucket 142 is connected to the waste water storage device 120.
  • the second drain port of the adsorption bucket 142 is connected to the waste water detection device 150.
  • the high-precision filter paper 141 is set to filter the remaining oil residue and impurities (for example, free oil and particulate matter) in the first-level oil removal wastewater, and the adsorption bucket 142 is set to further remove the remaining oil stains in the filtered second-level oil removal wastewater. and residue (for example, emulsified oil) to obtain secondary oil removal residue wastewater.
  • impurities for example, free oil and particulate matter
  • residue for example, emulsified oil
  • the primary oil removal wastewater discharged from the wastewater treatment device 130 flows through the high-precision filter paper 141 to filter out the remaining oil residue and impurities (eg, free oil and particulate matter) in the primary oil removal wastewater.
  • the filtered first-level degreasing wastewater flows into the first drain port of the adsorption barrel 142, and the remaining oil stains and residues (for example, emulsified oil) in the filtered second-level degreasing wastewater can be further removed to obtain the second-level degreasing wastewater.
  • the secondary oil removal wastewater is discharged to the wastewater detection device 150 through the second drain port of the adsorption bucket 142 for detection.
  • the wastewater detection device 150 If the secondary oil removal wastewater passes the wastewater detection device 150 and passes the detection, it can be discharged from the ship. If the secondary degreasing residue wastewater fails to pass the detection by the wastewater detection device 150 , the wastewater detection device 150 will re-discharge the secondary degreasing residue wastewater into the wastewater storage device 120 .
  • the filtered first-level oil removal wastewater flows into the second drain port of the adsorption bucket 142, and is discharged from the first drain port of the adsorption bucket 142 into the wastewater storage device 120.
  • the adsorption bucket 142 can be backflushed to make the adsorption bucket 142 can well remove residual oil stains and residues (for example, emulsified oil) from filtered secondary oil removal wastewater.
  • FIG. 6 is a schematic structural diagram of a wastewater detection device provided by an embodiment of the present application.
  • the wastewater detection device includes an oil content monitor 151 and a first multi-channel switch 152; the first end of the oil content monitor 151 and the filter
  • the device 140 is connected to the wastewater storage device 120, and the oil content monitor 151 is configured to detect whether the non-acidic wastewater flowing out of the wastewater storage device 120 or the secondary oil-removing wastewater flowing out of the filtering device 140 meets the emission standards. If the emission standards are met, The oil content monitor 151 controls the first multi-channel switch 152 to connect the oil content monitor 151 and the discharge pipe. If the emission standard is not met, the oil content monitor 151 controls the first multi-channel switch 152 to connect the oil content monitor 151 and the waste water. Storage device 120.
  • the wastewater storage device 120 provides the non-acidic wastewater to the oil content monitor 151 for detection. If the non-acidic wastewater passes the oil content monitor 151 and passes the detection, the oil content monitor 151 controls the first multi-channel switch 152 to turn on the oil content monitor 151 and discharge. pipe to discharge non-acidic wastewater directly out of the ship. If the non-acidic wastewater fails to pass the oil content monitor 151, the oil content monitor 151 controls the first multi-channel switch 152 to conduct the oil content monitor 151 and the wastewater storage device 120, and the oil content monitor 151 re-discharges the non-acidic wastewater into the wastewater storage device 120. . The filtering device 140 discharges the secondary oil removal wastewater to the oil content monitor 151 for wastewater detection.
  • the oil monitor 151 controls the first multi-channel switch 152 to turn on the oil monitor. 151 and discharge pipe to discharge the secondary oil residue wastewater out of the ship. If the secondary oil removal residue wastewater fails to pass the oil content monitor 151, the oil content monitor 151 controls the first multi-channel switch 152 to conduct the oil content monitor 151 and the wastewater storage device 120, and the oil content monitor 151 controls the secondary oil removal residue wastewater. Drain into wastewater storage device 120.
  • FIG. 7 is a schematic structural diagram of another ship exhaust gas recirculation wastewater treatment system provided by the embodiment of the present application.
  • the ship exhaust gas recirculation wastewater treatment system also includes an air condensation cabinet 161 and a second multi-channel switch 162. ;
  • the second multi-channel switch 162 When exhaust gas recirculation is not started, the second multi-channel switch 162 is set to conduct the air condensation cabinet 161 and the condensation water pipe, and the air condensation cabinet 161 is set to store the condensation water flowing out of the condensation water pipe; in the case of starting exhaust gas recirculation Below, the second multi-channel switch 162 is configured to conduct the neutralization device and the condensate water pipe.
  • the waste water discharged from the condensate pipe is formed by the condensation of moisture in the air.
  • the water discharged from the condensate pipe will not contain sulfur oxides, nitrogen oxides, carbon dioxide, oil and particulate matter in the exhaust gas.
  • the second multi-channel switch 162 automatically connects the air condensation cabinet 161 and the condensation water pipe, and the water discharged from the condensation water pipe can directly flow into the air condensation cabinet 161 for storage.
  • the second multi-channel switch 162 is set to connect the neutralization device and the condensate water pipe.
  • the waste water discharged from the condensate water pipe is formed by the condensation of moisture in the air and exhaust gas.
  • the water discharged from the condensate pipe will contain sulfur oxides, nitrogen oxides, carbon dioxide, oil and particulate matter in the exhaust gas.
  • the second multi-channel switch 162 automatically connects the neutralization device and the condensate pipe.
  • the water discharged from the condensate pipe is acidic and needs to be discharged into the neutralization device for processing.
  • the ship exhaust gas recirculation wastewater treatment system also includes an oil residue concentration device; the oil residue concentration device includes a second doser 171 and a concentration cabinet 172; the second doser 171 and wastewater
  • the processing devices 130 are all connected to the concentration cabinet 172.
  • the second doser 171 is configured to add concentrated medicament to the concentration cabinet 172; the concentration cabinet 172 is configured to store and concentrate the air float to produce oil residue.
  • the air flotation body accumulates at the top of the air flotation barrel 136.
  • the thickness of the air flotation body can be measured through a light sensor or a conductivity sensor, and the discharge of the air flotation body into the concentration cabinet 172 can be automatically controlled.
  • the second doser 171 adds concentrated medicament to the concentration device, so that the dense air float settles to the bottom of the concentration cabinet 172.
  • the concentration cabinet 172 is also connected to the wastewater storage device. After the air float is concentrated and settled, the wastewater in the upper part of the concentration cabinet 172 can flow back to the wastewater storage device again.
  • the concentration cabinet 172 is also connected to a wastewater treatment device. The first-level degreasing residue wastewater processed by the wastewater treatment device is discharged into the concentration cabinet 172, and the concentration cabinet 172 can be flushed.
  • the ship exhaust gas recirculation wastewater treatment system also includes an oil residue storage and discharge device;
  • the oil residue storage and discharge device includes an oil residue tank 181, an oil residue pump 182 and a second direct discharge valve 183;
  • the slag tank 181 is connected to the concentrating tank 172, the oil slag pump 182 is connected to the oil slag tank 181, and the second direct discharge valve 183 is connected to the oil slag pump 182;
  • the oil slag tank 181 is configured to store the oil slag flowing out of the concentration tank 172; on the ship When docking, the second direct discharge valve 183 is opened, and the oil residue pump 182 is configured to discharge the oil residue from the oil residue tank 181 .
  • the concentration tank 172 is discharged to the oil residue tank 181 through the bottom slag discharge port.
  • the oil residue pump 182 and the second direct discharge valve 183 are opened to transport the oil residue to the dock waste transfer truck or the ship.
  • FIG. 8 is a schematic structural diagram of a ship provided by an embodiment of the present application.
  • the ship 001 includes a ship exhaust gas recirculation wastewater treatment system 002 provided by any embodiment of the present application.
  • the ship 001 includes the ship exhaust gas recirculation wastewater treatment system 002 provided by any embodiment of the present application, and therefore has the beneficial effects of the ship exhaust gas recirculation wastewater treatment system 002 provided by the embodiments of the present application, which will not be described again here.

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  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
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Abstract

本申请实施例公开了一种船舶废气再循环废水处理系统及船舶。该船舶废气再循环废水处理系统包括：中和装置、废水存储装置、废水处理装置、过滤装置以及废水检测装置；中和装置设置为对废水管和冷凝水管中流出的废水进行中和处理，得到非酸性废水；废水存储装置设置为存储非酸性废水；废水处理装置设置为通过絮凝和气浮的方式去除非酸性废水中的油渣和杂质，得到一级除油渣废水；过滤装置设置为过滤一级除油渣废水，得到二级除油渣废水，废水检测装置设置为检测非酸性废水或二级除油渣废水是否符合排放标准，并在非酸性废水或二级除油渣废水符合排放标准的情况下将非酸性废水或二级除油渣废水排出。

Description

船舶废气再循环废水处理系统及船舶
本申请要求在2022年06月01日提交中国专利局、申请号为202210618144.8的中国专利申请的优先权，以上申请的全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及废水处理技术领域，例如涉及一种船舶废气再循环废水处理系统及船舶。
背景技术
目前为了提高柴油机性能和降低柴油机废气排放等目的，发动机开发商设计了废气再循环系统。其中，废气再循环系统的工作过程为：在废气循环输入至气缸前，使用淡水洗涤，以降低烟气的温度和去除烟气中的颗粒物。洗涤后的废水因含有废气中的SOx、NOx、油分以及颗粒物，会形成一种酸性，含油并且浊度较高的废水。由于废气洗涤水是闭式循环系统使用的，因此废气洗涤水需要保持一定的溢流量，从而可以排出废气因降温冷凝出的多余水分，与此同时还可以限制循环水中油分和颗粒物浓度的上升。
根据《2018年废气再循环(EGR，Exhaust Gas Recirculation)排放水导则》(第MEPC.307(73)号决议)，船舶排放的废水需要处理达标后才可以排放。由此对于燃烧合规油的发动机(天然气和低硫油均属于合规油)的发动机，排放入水中的油分需要低于15ppm，并且需要采用满足MEPC107(49)要求的油分监测仪实施在线监测。
发明内容
本申请实施例提供一种船舶废气再循环废水处理系统及船舶。
第一方面，本申请实施例提供了一种船舶废气再循环废水处理系统，其包括：中和装置、废水存储装置、废水处理装置、过滤装置以及废水检测装置；
中和装置与废水管、冷凝水管以及废水存储装置连通，废水存储装置与废水处理装置和废水检测装置连通，废水处理装置和过滤装置连通，过滤装置与废水检测装置连通；
中和装置设置为对废水管和冷凝水管中流出的废水进行中和处理，得到非酸性废水；废水存储装置设置为存储非酸性废水；废水处理装置设置为通过絮凝和气浮的方式去除非酸性废水中的油渣和杂质，得到一级除油渣废水；过滤 装置设置为过滤一级除油渣废水，得到二级除油渣废水；废水检测装置设置为检测非酸性废水或二级除油渣废水是否符合排放标准，并在非酸性废水或二级除油渣废水符合排放标准的情况下将非酸性废水或二级除油渣废水排出。
第二方面，本申请实施例还提供了一种船舶，其包括上述实施例中任意提出的船舶废气再循环废水处理系统。
附图说明
下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种船舶废气再循环废水处理系统的结构示意图；
图2为本申请实施例提供的一种中和装置的结构示意图；
图3为本申请实施例提供的一种废水存储装置的结构示意图；
图4为本申请实施例提供的一种废水处理装置的结构示意图；
图5为本申请实施例提供的一种过滤装置的结构示意图；
图6为本申请实施例提供的一种废水检测装置的结构示意图；
图7为本申请实施例提供的另一种船舶废气再循环废水处理系统的结构示意图；
图8为本申请实施例提供的一种船舶的结构示意图。
具体实施方式
为了使本技术领域的人员更好地理解本申请实施例，下面将结合本申请实施例中的附图，对本申请实施例进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了 一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本申请实施例提供了一种船舶废气再循环废水处理系统，图1为本申请实施例提供的一种船舶废气再循环废水处理系统的结构示意图，如图1所示，该船舶废气再循环废水处理系统包括：中和装置110、废水存储装置120、废水处理装置130、过滤装置140以及废水检测装置150；中和装置110与废水管、冷凝水管以及废水存储装置120连通，废水存储装置120与废水处理装置130和废水检测装置150连通，废水处理装置130和过滤装置140连通，过滤装置140与废水检测装置150连通；中和装置110设置为对废水管和冷凝水管中流出的废水进行中和处理，得到非酸性废水；废水存储装置120设置为存储非酸性废水；废水处理装置130设置为通过絮凝和气浮的方式去除非酸性废水中的油渣和杂质，得到一级除油渣废水；过滤装置140设置为过滤一级除油渣废水，得到二级除油渣废水；废水检测装置150设置为检测非酸性废水或二级除油渣废水是否符合排放标准，并在非酸性废水或二级除油渣废水符合排放标准的情况下将非酸性废水或二级除油渣废水排出。
其中，当船舶启动废水处理系统时废水管会排出洗涤废气时产生的多余废水。冷凝水管排出的废水是空气和废气中的水份遇冷凝结形成的。其中，废水管排出的废水和冷凝水管排出的废水中均含有废气中的硫氧化物、氮氧化物、二氧化碳而、油分以及颗粒物，由此废水管排出的废水和冷凝水管排出的废水均呈酸性，含油并且浊度较高。显然，此时废水管和冷凝水管排出的废水不符合排放标准，需要经过船舶废气再循环废水处理系统处理，并且符合一定的标准才可进行排放，以避免污染环境。
具体地，船舶废气再循环废水处理系统的工作过程为：当船舶启动废水处理系统启动时，废水管和冷凝水管排出废水流入中和装置110，由于废水呈酸性，会对其存储装置产生腐蚀，此时中和装置110可以对废水管和冷凝水管中流出的废水进行中和处理，使得废水失去腐蚀性，得到非酸性废水。非酸性废水在中和装置110中达到一定的存储量时，会从中和装置110溢流入废水存储装置120。非酸性废水流入废水存储装置120后，会将非酸性废水提供给废水检测装置150进行检测，若非酸性废水经过废水检测装置150检测合格后，则可以直接进行排放。若非酸性废水经过废水检测装置150检测不合格，则废水检测装置150将非酸性废水重新排入废水存储装置120，与此同时废水存储装置120将 非酸性废水提供给废水处理装置130进行初步处理。废水处理装置130可以通过絮凝和气浮的方式去除非酸性废水中掺杂的大部分油渣和杂质，得到一级除油渣废水。废水处理装置130对非酸性废水初步处理完成得到一级除油渣废水后，会将一级除油渣废水排放给过滤装置140进行进一步处理。过滤装置140对一级除油渣废水进行过滤，可以进一步去除一级除油渣废水中残存的少量油渣和杂质，得到二级除油渣废水。过滤装置140对一级除油渣废水进一步处理完成得到二级除油渣废水后，会将二级除油渣废水排放给废水检测装置150进行检测，若二级除油渣废水经过废水检测装置150检测合格后，则可以排出船舶外。若二级除油渣废水经过废水检测装置150检测不合格，则废水检测装置150将二级除油渣废水重新排入废水存储装置120。废水存储装置120会重新将其存储的废水(非酸性废水和二级除油渣废水的混合废水)继续提供给废水处理装置130进行初步处理，直至废水检测装置150检测合格排出船舶外。
本申请实施例的船舶废气再循环废水处理系统，可以通过中和装置去除废水管和冷凝水管中流出废水的酸性，得到非酸性废水。废水存储装置可以存储非酸性废水，并将非酸性废水提供给废水检测装置进行检测，并在非酸性检测不合格的情况下将非酸性废水提供给废水处理装置进行处理。废水处理装置可以初步去除非酸性废水中大部分的油渣和杂质，得到一级除油渣废水。过滤装置可以进一步过滤出一级除油渣废水中残留的油渣和杂质，得到二级除油渣废水。废水检测装置可以检测非酸性废水或二级除油渣废水是否符合排放标准，并在非酸性废水或二级除油渣废水符合排放标准的情况下将非酸性废水或二级除油渣废水排出，在非酸性废水或二级除油渣废水符合排放标准的情况下将非酸性废水或二级除油渣废水重新排入废水存储装置继续处理。由此可知，本实施例可以对废水循环去除油渣和杂质，直至废水检测装置检测合格排出船舶外，也就是船舶排放废水的指标达到规范要求后才可以排出船舶外。
图2为本申请实施例提供的一种中和装置的结构示意图，如图2所示，中和装置包括中和柜111、第一混合器112、第一PH传感器113、碱液柜114、碱液泵115以及应急碱液泵116；第一混合器112安装于中和柜111内，第一PH传感器113的检测端插入中和柜111内，废水管和冷凝水管与第一混合器112连通，碱液柜114通过碱液泵115与第一混合器112连通，第一PH传感器113与碱液泵115电连接，中和柜111与废水存储装置120连通，碱液柜114通过应急碱液泵116与废水存储装置120连通；第一混合器112设置为将废水管和冷凝水管流出的废水与碱液柜114流出的碱液进行中和，得到非酸性废水；中和 柜111设置为存储非酸性废水；第一PH传感器113设置为检测非酸性废水的酸碱度，并根据PH值控制碱液泵115的工作状态；应急碱液泵116设置为向废水存储装置120中添加碱液。
例如，当船舶启动废水处理系统时，废水管和冷凝水管排出的废水流入第一混合器112内，第一混合器112内的碱液与废水充份混合发生中和反应变成非酸性废水，并流入中和柜111内。第一PH传感器113会一直检测中和柜111内的非酸性废水的PH值，一旦非酸性废水的PH值小于一定的值，第一PH传感器113会启动碱液泵115，使得碱液柜114内的碱液被碱液泵115抽入第一混合器112内，实现碱液加药量的闭环控制，以调整流入的废水或中和柜111内存储的非酸性废水的PH值。另外，当中和柜111内存储的非酸性废水达到一定的存储量后，中和柜111内存储的非酸性废水会溢流入废水存储装置120。当废水存储装置120内存储的非酸性废水的PH值小于一定的值，会发出报警，提醒工作人员打开应急碱液泵116向废水存储装置120中添加碱液，以调整废水存储装置120内存储的非酸性废水的PH值。
图3为本申请实施例提供的一种废水存储装置的结构示意图，如图3所示，废水存储装置包括废水柜121、废水泵122、第一直排阀123、废水处理阀124以及第二PH传感器125；第二PH传感器125的检测端插入废水柜121内，废水柜121通过废水泵122和第一直排阀123与废水检测装置150连通；废水柜121通过废水泵122和废水处理阀124与废水处理装置130连通；废水柜121设置为存储非酸性废水，第二PH传感器125设置为检测非酸性废水的酸碱度，废水泵122设置为在第一直排阀123开启期间将废水柜121中的非酸性废水传输给废水检测装置150，在废水处理阀124开启期间将废水柜121中的非酸性废水传输给废水处理装置130。
例如，当废水柜121流入非酸性废水时，首先需要将废水泵122和第一直排阀123打开，废水泵122可以将废水柜121内存储的非酸性废水提供给废水检测装置150进行检测，若非酸性废水经过废水检测装置150检测合格，则说明此时产生的非酸性废水中的油渣和杂质含量很低，满足废水的排放要求，可以将非酸性废水直接进行排放。若非酸性废水经过废水检测装置150检测不合格，则废水检测装置150将非酸性废水重新排入废水柜121，此时废水泵122和废水处理阀124打开，废水泵122可以将废水柜121内存储的非酸性废水提供给废水处理装置130进行初步处理。此外，第二PH传感器125会一直检测废水柜121内的非酸性废水的PH值，一旦非酸性废水的PH值小于一定的值，会发 出报警，提醒工作人员打开应急碱液泵向废水存储装置中添加碱液，以调整废水存储装置内存储的非酸性废水的PH值。
图4为本申请实施例提供的一种废水处理装置的结构示意图，如图4所示，废水处理装置包括第一加药器131、第二混合器132、气罐133、气浮发生器134、竖流气浮井135以及气浮桶136；竖流气浮井135部分倒插入气浮桶136内，气浮发生器134设置在竖流气浮井135位于气浮桶136外部的一端；第二混合器132和第一加药器131连通，第二混合器132的一端和第一加药器131的连通管道与废水存储装置120连通，第二混合器132的另一端与竖流气浮井135位于气浮桶136外部的一端连通，气罐133的一端与气浮发生器134连通，气罐133的另一端与压缩空气管连通，气浮桶136与过滤装置140连通；第一加药器131设置为给第二混合器132提供絮凝剂，第二混合器132设置为将废水存储装置120中的非酸性废水和絮凝剂进行混合产生絮体，气罐133设置为给气浮发生器134提供压缩空气产生气泡，竖流气浮井135设置为使气泡与絮体充分结合产生气浮体；气浮桶136设置为分离气浮体、杂质和一级除油渣废水。
例如，废水存储装置120将非酸性废水传输给第二混合器132的过程中第一加药器131会将絮凝剂加入传输管道。含药剂的非酸性废水进入第二混合器132中，可以使非酸性废水中的油渣、杂质和絮凝剂充分混合产生絮体。第二混合器132将含有絮体的非酸性废水传输到竖流气浮井，与此同时压缩空气管中的压缩空气导入气罐133，并经由气罐133传输给气浮发生器134。气浮发生器134可以产生气泡，使气泡与絮体在竖流气浮井135中充分结合，形成密度较小的气浮体。气浮桶136可以分离气浮体、杂质和一级除油渣废水。其中，气浮体会上浮到气浮桶136的顶部，一级除油渣废水位于气浮体下层。气浮桶136会将一级除油渣废水传输给过滤装置140，使得过滤装置140进一步去除一级除油渣废水中残存的油渍和杂质。
图5为本申请实施例提供的一种过滤装置的结构示意图，如图5所示，过滤装置包括高精度滤纸141和吸附桶142；高精度滤纸141的一端与废水处理装置130连通，高精度滤纸141的另一端与吸附桶142的第一排水口和第二排水口连接，吸附桶142的第一排水口与废水存储装置120连接，吸附桶142的第二排水口与废水检测装置150连通；高精度滤纸141设置为过滤一级除油渣废水中残留的油渣和杂质(例如，游离油和颗粒物)，吸附桶142设置为进一步去除过滤后的二级除油渣废水中残留的油渍和渣滓(例如，乳化油)，得到二级除油渣废水。
其中，废水处理装置130中排出的一级除油渣废水流过高精度滤纸141可以过滤出一级除油渣废水中残留的油渣和杂质(例如，游离油和颗粒物)。经过过滤的一级除油渣废水流入吸附桶142的第一排水口，可以进一步去除过滤后的二级除油渣废水中残留的油渍和渣滓(例如，乳化油)，得到二级除油渣废水。二级除油渣废水通过吸附桶142的第二排水口排放给废水检测装置150进行检测，若二级除油渣废水经过废水检测装置150检测合格后，则可以排出船舶外。若二级除油渣废水经过废水检测装置150检测不合格，则废水检测装置150将二级除油渣废水重新排入废水存储装置120。
另外，经过过滤的一级除油渣废水流入吸附桶142的第二排水口，并从吸附桶142的第一排水口排入废水存储装置120，可以对吸附桶142进行反冲，使吸附桶142可以很好地去除过滤后的二级除油渣废水中残留的油渍和渣滓(例如，乳化油)。
图6为本申请实施例提供的一种废水检测装置的结构示意图，如图6所示，废水检测装置包括油分监测器151和第一多通道开关152；油分监测器151的第一端与过滤装置140和废水存储装置120连通，油分监测器151设置为检测废水存储装置120流出的非酸性废水或过滤装置140流出的二级除油渣废水是否符合排放标准，在符合排放标准的情况下，油分监测器151控制第一多通道开关152导通油分监测器151和排放管，在不符合排放标准的情况下，则油分监测器151控制第一多通道开关152导通油分监测器151和废水存储装置120。
其中，废水存储装置120将非酸性废水提供给油分监测器151进行检测，若非酸性废水经过油分监测器151检测合格后，油分监测器151控制第一多通道开关152导通油分监测器151和排放管，将非酸性废水直接排出船舶外。若非酸性废水经过油分监测器151检测不合格，油分监测器151控制第一多通道开关152导通油分监测器151和废水存储装置120，油分监测器151将非酸性废水重新排入废水存储装置120。过滤装置140将二级除油渣废水排放给油分监测器151进行废水检测，若二级除油渣废水经过废水检测装置检测合格，油分监测器151控制第一多通道开关152导通油分监测器151和排放管，将二级除油渣废水排出船舶外。若二级除油渣废水经过油分监测器151检测不合格，油分监测器151控制第一多通道开关152导通油分监测器151和废水存储装置120，油分监测器151将二级除油渣废水排入废水存储装置120。
图7为本申请实施例提供的另一种船舶废气再循环废水处理系统的结构示意图，如图7所示，船舶废气再循环废水处理系统，还包括空气冷凝柜161和 第二多通道开关162；在未启动废气再循环的情况下，第二多通道开关162设置为导通空气冷凝柜161和冷凝水管，空气冷凝柜161设置为存储冷凝水管流出的冷凝水；在启动废气再循环的情况下，第二多通道开关162设置为导通中和装置和冷凝水管。
例如，当发动机没有启用废气再循环时，冷凝水管排出的废水是空气中的水份遇冷凝结形成的。冷凝水管排出的水不会含有废气中的硫氧化物、氮氧化物、二氧化碳、油分以及颗粒物。此时第二多通道开关162自动导通空气冷凝柜161和冷凝水管，冷凝水管排出的水可以直接流入空气冷凝柜161进行存储。当发动机启用废气再循环时，第二多通道开关162设置为导通中和装置和冷凝水管，冷凝水管排出的废水是空气和废气中的水份遇冷凝结形成的。冷凝水管排出的水会含有废气中的硫氧化物、氮氧化物、二氧化碳、油分以及颗粒物。此时第二多通道开关162自动导通中和装置和冷凝水管，凝水管排出的水呈酸性需要排入中和装置进行处理。
在一实施例中，继续参考图7，船舶废气再循环废水处理系统，还包括油渣浓缩装置；油渣浓缩装置包括第二加药器171和浓缩柜172；第二加药器171和废水处理装置130均与浓缩柜172连接，第二加药器171设置为向浓缩柜172加入浓缩药剂；浓缩柜172设置为存储并浓缩气浮体，产生油渣。
其中，气浮体在气浮桶136顶部聚集，可以通过光感或电导传感器测量气浮体的聚集厚度，自动控制气浮体的排放入浓缩柜172。在气浮体排放入浓缩柜172的同时第二加药器171向浓缩装置加入浓缩药剂，使得密度较大的气浮体沉淀到浓缩柜172底部。
另外，浓缩柜172还与废水存储装置连接，气浮体经过浓缩沉淀后，浓缩柜172上部的废水可以再次回流至废水存储装置。浓缩柜172还与废水处理装置连接，废水处理装置处理得到的一级除油渣废水排放入浓缩柜172，可以对浓缩柜172进行冲洗。
在一实施例中，继续参考图7，船舶废气再循环废水处理系统还包括油渣存储排放装置；油渣存储排放装置包括油渣柜181、油渣泵182和第二直排阀183；油渣柜181与浓缩柜172连通，油渣泵182与油渣柜181连通，第二直排阀183与油渣泵182连接；油渣柜181设置为存储浓缩柜172流出的油渣；在船舶靠岸的情况下，第二直排阀183打开，油渣泵182设置为将油渣柜181的油渣排出。
其中，浓缩柜172通过底部排渣口排放到油渣柜181。在船舶靠岸的情况下， 打开油渣泵182和第二直排阀183可以将油渣输送到码头废渣接驳车或船上。
图8为本申请实施例提供的一种船舶的结构示意图，如图8所示，该船舶001包括本申请任意实施例所提供的船舶废气再循环废水处理系统002。
其中，船舶001包括本申请任意实施例提供的船舶废气再循环废水处理系统002，因此具有本申请实施例提供的船舶废气再循环废水处理系统002的有益效果，此处不再赘述。
最后应说明的是：以上实施例仅用以说明本申请的实施例，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应实施例的本质脱离本申请各实施例的精神和范围。

Claims (10)

  1. 一种船舶废气再循环废水处理系统，包括：中和装置、废水存储装置、废水处理装置、过滤装置以及废水检测装置；
    所述中和装置与废水管、冷凝水管以及所述废水存储装置连通，所述废水存储装置与所述废水处理装置和所述废水检测装置连通，所述废水处理装置和所述过滤装置连通，所述过滤装置与所述废水检测装置连通；
    所述中和装置设置为对所述废水管和所述冷凝水管中流出的废水进行中和处理，得到非酸性废水；所述废水存储装置设置为存储所述非酸性废水；所述废水处理装置设置为通过絮凝和气浮的方式去除所述非酸性废水中的油渣和杂质，得到一级除油渣废水；所述过滤装置设置为过滤所述一级除油渣废水，得到二级除油渣废水；所述废水检测装置设置为检测所述非酸性废水或所述二级除油渣废水是否符合排放标准，并在所述非酸性废水或所述二级除油渣废水符合排放标准的情况下将所述非酸性废水或所述二级除油渣废水排出。
  2. 根据权利要求1所述的船舶废气再循环废水处理系统，其中，所述中和装置包括中和柜、第一混合器、第一PH传感器、碱液柜、碱液泵以及应急碱液泵；
    所述第一混合器安装于所述中和柜内，所述第一PH传感器的检测端插入所述中和柜内，所述废水管和所述冷凝水管与所述第一混合器连通，所述碱液柜通过所述碱液泵与所述第一混合器连通，所述第一PH传感器与所述碱液泵电连接，所述中和柜与所述废水存储装置连通，所述碱液柜通过所述应急碱液泵与所述废水存储装置连通；
    所述第一混合器设置为将所述废水管和所述冷凝水管流出的废水与所述碱液柜流出的碱液进行中和，得到所述非酸性废水；所述中和柜设置为存储所述非酸性废水；所述第一PH传感器设置为检测所述非酸性废水的酸碱度，并根据PH值控制所述碱液泵的工作状态；所述应急碱液泵设置为向所述废水存储装置中添加碱液。
  3. 根据权利要求1所述的船舶废气再循环废水处理系统，其中，所述废水存储装置包括废水柜、废水泵、第一直排阀、废水处理阀以及第二PH传感器；
    所述第二PH传感器的检测端插入所述废水柜内，所述废水柜通过所述废水泵和所述第一直排阀与所述废水检测装置连通；所述废水柜通过所述废水泵和所述废水处理阀与所述废水处理装置连通；
    所述废水柜设置为存储所述非酸性废水，所述第二PH传感器设置为检测所述非酸性废水的酸碱度，所述废水泵设置为在所述第一直排阀开启期间将所述废水柜中的所述非酸性废水传输给所述废水检测装置，在所述废水处理阀开启 期间将所述废水柜中的所述非酸性废水传输给所述废水处理装置。
  4. 根据权利要求1所述的船舶废气再循环废水处理系统，其中，所述废水处理装置包括第一加药器、第二混合器、气罐、气浮发生器、竖流气浮井以及气浮桶；
    所述竖流气浮井部分倒插入所述气浮桶内，所述气浮发生器设置在所述竖流气浮井位于所述气浮桶外部的一端；
    所述第二混合器和所述第一加药器连通，所述第二混合器的一端和所述第一加药器的连通管道与所述废水处理装置连通，所述第二混合器的另一端与所述竖流气浮井位于所述气浮桶外部的一端连通，所述气罐的一端与所述气浮发生器连通，所述气罐的另一端与压缩空气管连通，所述气浮桶与所述过滤装置连通；
    所述第一加药器设置为给所述第二混合器提供絮凝剂，所述第二混合器设置为将所述废水存储装置中的所述非酸性废水和所述絮凝剂进行混合产生絮体，所述气罐设置为给所述气浮发生器提供压缩空气产生气泡，所述竖流气浮井设置为使所述气泡与所述絮体充分结合产生气浮体；所述气浮桶设置为分离所述气浮体、所述杂质和所述一级除油渣废水。
  5. 根据权利要求1所述的船舶废气再循环废水处理系统，其中，所述过滤装置包括高精度滤纸和吸附桶；
    所述高精度滤纸的一端与所述废水处理装置连通，所述高精度滤纸的另一端与所述吸附桶的第一排水口和第二排水口连接，所述吸附桶的第一排水口与所述废水存储装置连接，所述吸附桶的第二排水口与所述废水检测装置连通；
    所述高精度滤纸设置为过滤所述一级除油渣废水中残留的油渣和杂质，所述吸附桶设置为去除过滤后的所述二级除油渣废水中残留的油渍和渣滓，得到二级除油渣废水。
  6. 根据权利要求1所述的船舶废气再循环废水处理系统，其中，所述废水检测装置包括油分监测器和第一多通道开关；
    所述油分监测器的第一端与所述过滤装置和废水存储装置连通，所述油分监测器设置为检测所述废水存储装置流出的所述非酸性废水或过滤装置流出的所述二级除油渣废水是否符合排放标准，在符合排放标准的情况下，所述油分监测器控制所述第一多通道开关导通油分监测器和排放管，在不符合排放标准的情况下，则所述油分监测器控制所述第一多通道开关导通油分监测器和废水存储装置。
  7. 根据权利要求1所述的船舶废气再循环废水处理系统，还包括空气冷凝柜和第二多通道开关；
    在未启动废气再循环的情况下，所述第二多通道开关设置为导通所述空气冷凝柜和所述冷凝水管，所述空气冷凝柜设置为存储所述冷凝水管流出的冷凝水；
    在启动废气再循环的情况下，所述第二多通道开关设置为导通所述中和装置和所述冷凝水管。
  8. 根据权利要求4所述的船舶废气再循环废水处理系统，还包括油渣浓缩装置；
    所述油渣浓缩装置包括第二加药器和浓缩柜；
    所述第二加药器和废水处理装置均与所述浓缩柜连接，所述第二加药器设置为向所述浓缩柜加入浓缩药剂；所述浓缩柜设置为存储并浓缩所述气浮体，产生油渣。
  9. 根据权利要求8所述的船舶废气再循环废水处理系统，还包括油渣存储排放装置；
    所述油渣存储排放装置包括油渣柜、油渣泵和第二直排阀；
    所述油渣柜与所述浓缩柜连通，所述油渣泵与所述油渣柜连通，所述第二直排阀与所述油渣泵连接；
    所述油渣柜设置为存储所述浓缩柜流出的所述油渣；在船舶靠岸的情况下，所述第二直排阀打开，所述油渣泵设置为将所述油渣柜的所述油渣排出。
  10. 一种船舶，包括权利要求1-9任一项所述的船舶废气再循环废水处理系统。
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