Desulfurization system and ship

Abstract

The utility model belongs to the technical field of ships, and particularly relates to a desulfurization system and a ship. The desulfurization system comprises a desulfurization tower, fuel oil equipment, a smoke exhaust pipe, a control valve, a control box, a main deck, a second deck, a third deck and a fourth deck, the second deck, the third deck and the fourth deck are sequentially arranged below the main deck, the desulfurization tower is arranged on the main deck, the fuel oil equipment comprises a boiler, a generator and a main engine, and the smoke exhaust pipe is arranged between the fuel oil equipment and the desulfurization tower. The flue gas generated by the fuel oil equipment flows to the desulfurizing tower through the flue gas exhaust pipe, the control valves are arranged in the flue gas exhaust pipe, and the control box is connected with the control valves and controls the control valves to be opened and closed based on operation signals of the fuel oil equipment. The flue gas generated by the fuel oil equipment is guided into the desulfurization tower for desulfurization treatment, so that heavy oil can be used as fuel instead of light oil, and the operation cost of a ship is reduced; and meanwhile, the conditions that the sulfur content in the flue gas generated by the fuel oil equipment exceeds the sulfur limit regulation and the flue gas entering the desulfurizing tower exceeds the load of the desulfurizing tower can be avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of ships, and in particular relates to a desulfurization system and a ship. Background Art

[0002] According to the ship sulfur limit regulations, the International Maritime Organization (IMO) requires all member states to implement MEPC.259 (68) resolution from January 1, 2020, which requires that the sulfur oxide content in ship flue gas emissions must be less than 0.5%. In order to cope with the new IMO regulations, ships basically meet the emission standards in the following three ways: 1. Directly use low-sulfur oil with a sulfur content of less than 0.5% m / m (mass percentage, 0.5% m / m means 0.5 grams of sulfur per 100 grams of substance); 2. Use a desulfurization tower system; 3. Use new energy such as liquefied natural gas as an alternative energy source.

[0003] Although the first method is simple and direct, on the one hand, the price of low-sulfur oil is high, which increases operating costs. On the other hand, there are differences in viscosity, acidity and alkalinity between low-sulfur oil and high-sulfur oil. Blind replacement will make the equipment unsuitable, causing wear and corrosion of the equipment and malfunctions. The third method is only applicable to new ships or ships with reserved space for transformation. It is difficult to add new energy and the filling technology needs to be popularized. Therefore, some shipowners have chosen to install a desulfurization tower system on their ships to comply with the new regulations.

[0004] However, due to the limitation of ship shape and space, the desulfurization towers in existing ships have low power and limited space. Therefore, existing ships only connect the flue gas from the main engine and main generator to the desulfurization tower for treatment, while the flue gas generated by other fuel equipment such as the main engine, generator and boiler is directly discharged into the atmosphere. In order to make the sulfur content in the flue gas generated by the fuel equipment meet the requirements of the discharge sea area, existing ships often use light oil as fuel, but the cost of light oil is relatively high, which will lead to higher operating costs of the ship. Utility Model Content

[0005] The purpose of the present application is to provide a desulfurization system and a ship, which can introduce the flue gas generated by the fuel equipment into a desulfurization tower for desulfurization treatment, so that heavy oil can be used as fuel instead of light oil, reducing the operating costs of the ship. At the same time, it can also avoid the sulfur content in the flue gas generated by the fuel equipment exceeding the sulfur limit regulations and the flue gas entering the desulfurization tower exceeding the load of the desulfurization tower.

[0006] The embodiment of the present disclosure provides a desulfurization system, the desulfurization system comprising a main deck for loading cargo, and a second deck, a third deck and a fourth deck sequentially arranged below the main deck, the desulfurization system further comprising:

[0007] A desulfurization tower, arranged on the main deck;

[0008] Fuel-fired equipment, including a boiler, a generator and a main engine, wherein the boiler is arranged on the second deck, the generator is arranged on the third deck, and the main engine is arranged on the fourth deck;

[0009] A plurality of smoke exhaust pipes are respectively arranged between the boiler, the generator, the main engine and the desulfurization tower, so that the smoke generated by the fuel oil equipment flows to the desulfurization tower through the smoke exhaust pipes.

[0010] A control valve, wherein a plurality of control valves are provided, and one of the control valves is provided in one of the exhaust pipes;

[0011] The control box is connected to each of the control valves and controls the switch of each of the control valves based on the operation signal of the fuel equipment.

[0012] In an exemplary embodiment of the present disclosure, the desulfurization system further includes:

[0013] The washing water pump is connected to the control box signal and a connecting pipeline is arranged between the washing water pump and the desulfurization tower. The control box controls the start and shut down of the washing water pump and the desulfurization tower based on the operation signal of the fuel equipment.

[0014] In an exemplary embodiment of the present disclosure, the desulfurization system further includes:

[0015] A water tank is communicated with the washing water pump and supplies water to the washing water pump.

[0016] In an exemplary embodiment of the present disclosure, the control valve includes a smoke exhaust main valve and a smoke exhaust bypass valve, the smoke exhaust main valve and the smoke exhaust bypass valve are connected in parallel, the smoke exhaust main valve is used to control the smoke generated by the fuel equipment to flow into the atmosphere, and the smoke exhaust bypass valve is used to control the smoke generated by the fuel equipment to flow into the desulfurization tower.

[0017] In an exemplary embodiment of the present disclosure, the desulfurization system includes a component detector, a plurality of component detectors are provided, one component detector is provided at the entrance of each exhaust pipe, the component detector is used to detect the sulfur content in the flue gas in the fuel equipment, the component detector is connected to the control box, and feeds back the sulfur content of the flue gas of the fuel equipment to the control box;

[0018] Wherein, when the sulfur content detected by the component detector is less than or equal to the standard value, the control box controls the main exhaust valve to open;

[0019] When the sulfur content detected by the component detector is greater than the standard value, the control box controls the exhaust bypass valve to open.

[0020] In an exemplary embodiment of the present disclosure, the desulfurization system includes a flow detector, which is arranged in the exhaust pipe and is used to detect the amount of flue gas generated by the fuel oil equipment. The flow detector is connected to the control box signal and feeds back the amount of flue gas generated by the fuel oil equipment to the control box.

[0021] Wherein, when the sum of the flue gas volumes detected by the flow detector is less than or equal to the load of the desulfurization tower, the control box controls the exhaust bypass valve to open;

[0022] When the total amount of flue gas detected by the flow detector is greater than the load of the desulfurization tower, the control box controls the main exhaust valve to open.

[0023] In an exemplary embodiment of the present disclosure, the main deck is provided with a chimney area and a building area, the desulfurization tower is provided in the chimney area, and the chimney area and the building area are distributed at intervals.

[0024] An embodiment of the present disclosure provides a ship, comprising a hull and any one of the desulfurization systems described above, wherein the desulfurization system is arranged on the hull.

[0025] In an exemplary embodiment of the present disclosure, the hull includes a stern area, an engine room area, a cargo hold area and a bow area, the engine room area is located between the stern area and the cargo hold area, the cargo hold area is located between the engine room area and the bow area, and the desulfurization system is arranged in the engine room area.

[0026] In an exemplary embodiment of the present disclosure, the second deck and the third deck are provided with hollow areas corresponding to the main engine, and the main engine partial structure is located in the hollow areas of the second deck and the third deck.

[0027] This application scheme has the following beneficial effects:

[0028] The present invention sets a plurality of smoke exhaust pipes, and respectively sets the smoke exhaust pipes between the boiler, the generator, the main engine and the desulfurization tower. The smoke generated by the fuel oil equipment flows to the desulfurization tower through the smoke exhaust pipes, and all the smoke generated by the fuel oil equipment can enter the desulfurization tower for desulfurization treatment, so that heavy oil can be used instead of light oil as fuel to reduce the operating cost of the ship. After being treated by the desulfurization tower, the sulfur content in the smoke can be reduced, so that the sulfur content in the discharged flue gas can meet the sulfur limit regulations and reduce the pollution of the flue gas to the atmosphere. In addition, the present invention also sets a control valve on the smoke exhaust pipe. By controlling the opening and closing of the control valve, the flow direction of the flue gas can be controlled, and then the situation that the flue gas entering the desulfurization tower exceeds the load of the desulfurization tower can be avoided, and the sulfur oxides in the flue gas can be fully desulfurized with the desulfurizer, thereby improving the desulfurization efficiency of the flue gas. At the same time, it can also avoid the wear and aging of the desulfurization tower caused by long-term overload operation, and even a certain degree of damage to the desulfurization tower, thereby reducing the maintenance and replacement costs of the desulfurization tower and extending the service life of the desulfurization system.

[0029] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0030] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the plan layout of the desulfurization system in the embodiment of the present disclosure.

[0033] Figure 2 Schematic diagram of the circuit equivalent of the desulfurization system in the embodiment of the present disclosure.

[0034] Description of reference numerals:

[0035] 1. Ships;

[0036] 2. Desulfurization system;

[0037] 210, main deck; 2101, funnel area; 2101a, first funnel area; 2101b, second funnel area; 2102, building area; 211, second deck; 212, third deck; 213, fourth deck;

[0038] 22. Desulfurization tower;

[0039] 23. Fuel-fired equipment; 231. Boiler; 232. Generator; 233. Main engine;

[0040] 24. Smoke exhaust pipe;

[0041] 25. Control valve; 251. Smoke exhaust main valve; 252. Smoke exhaust bypass valve;

[0042] 26. Control box;

[0043] 27. Washing water pump;

[0044] 28. Water tank;

[0045] 3. Hull. DETAILED DESCRIPTION

[0046] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete and will fully convey the concept of the example embodiments to those skilled in the art.

[0047] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

[0048] The present disclosure is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present disclosure described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be understood as limiting the present disclosure.

[0049] like Figure 1 and Figure 2 As shown, an embodiment of the present disclosure provides a desulfurization system 2, which includes a main deck 210 for loading cargo, and a second deck 211, a third deck 212 and a fourth deck 213 arranged sequentially below the main deck 210, and the desulfurization system 2 also includes: a desulfurization tower 22, fuel equipment 23 and multiple smoke exhaust pipes 24.

[0050] Among them, the desulfurization tower 22 is arranged on the main deck 210, and the fuel equipment 23 includes a boiler 231, a generator 232 and a main engine 233, and the boiler 231 is arranged on the second deck 211, the generator 232 is arranged on the third deck 212, and the main engine 233 is arranged on the fourth deck 213, but not limited to this, the specific positions of the boiler 231, the generator 232 and the main engine 233 on the main deck 210, the second deck 211, the third deck 212 and the fourth deck 213 can be determined according to actual conditions.

[0051] A plurality of smoke exhaust pipes 24 are respectively disposed between the boiler 231 , the generator 232 , the main engine 233 and the desulfurization tower 22 , so that the smoke generated by the fuel oil equipment 23 flows to the desulfurization tower 22 through the smoke exhaust pipes 24 .

[0052] For example, in the embodiment of the present disclosure, the fuel equipment 23 can be provided with a main engine 233, three generators 232 and two boilers 231, and each main engine 233, generator 232 and boiler 231 is connected to the smoke exhaust pipe 24, so that the smoke generated by the fuel equipment 23 can enter the desulfurization tower 22 through the smoke exhaust pipe 24.

[0053] In the embodiment of the present disclosure, a smoke exhaust pipe 24 is respectively arranged on the boiler 231, the generator 232, and the main engine 233, so that the flue gas generated by the fuel equipment 23 in the desulfurization system 2 can enter the desulfurization tower 22 for desulfurization treatment, thereby reducing the pollution of the flue gas generated by the fuel equipment 23 to the atmosphere. Furthermore, in the embodiment of the present disclosure, heavy oil can be used instead of light oil as fuel, and the flue gas generated after the heavy oil is burned by the fuel equipment 23 can enter the desulfurization tower 22 for desulfurization treatment to reduce the sulfur content in the flue gas, thereby reducing the pollution of the exhaust flue gas to the atmosphere while reducing the operating cost of the desulfurization system 2.

[0054] In the embodiment of the present disclosure, the desulfurization system 2 further includes: a control valve 25 , a control box 26 , a washing water pump 27 and a water tank 28 .

[0055] There are multiple control valves 25 , and one control valve 25 is disposed in a smoke exhaust pipe 24 to control the flow direction of smoke generated by the fuel-burning equipment 23 .

[0056] The control box 26 is connected to each control valve 25 . The control box 26 can collect the operation signal of the fuel equipment 23 and control the switch of each control valve 25 based on the operation signal of the fuel equipment 23 .

[0057] The washing water pump 27 is connected to the signal of the control box 26, and a connecting pipeline is set between the washing water pump 27 and the desulfurization tower 22. When the control box 26 receives the operation signal of the fuel equipment 23, the control box 26 controls the start and stop of the washing water pump 27 and the desulfurization tower 22 based on the operation signal of the fuel equipment 23.

[0058] The water tank 28 is communicated with the washing water pump 27 , and is used to supply water to the washing water pump 27 .

[0059] Specifically, when the fuel equipment 23 starts to run, the operation signal of the fuel equipment 23 is transmitted to the control box 26. The control box 26 controls the control valve 25 to open based on the received operation signal of the fuel equipment 23, and then the flue gas generated by the fuel equipment 23 can enter the desulfurization tower 22 through the exhaust pipe 24. At the same time, the control box 26 will also control the opening of the washing water pump 27 and the desulfurization tower 22 when receiving the operation signal of the fuel equipment 23. After being turned on, the washing water pump 27 can transport the water in the water tank 28 to the desulfurization tower 22. After the water enters the desulfurization tower 22 through the pipeline, it fully contacts with the flue gas in the desulfurization tower 22. Under the action of a specific desulfurizer, the sulfur oxides in the flue gas are converted into soluble substances, and the soluble substances can be removed from the water, and then the desulfurization treatment of the flue gas can be achieved.

[0060] The control valve 25 in the embodiment of the present disclosure includes a smoke exhaust main valve 251 and a smoke exhaust bypass valve 252. The smoke exhaust main valve 251 and the smoke exhaust bypass valve 252 are connected in parallel. The smoke exhaust main valve 251 is used to control the smoke generated by the fuel equipment 23 to flow into the atmosphere, and the smoke exhaust bypass valve 252 is used to control the smoke generated by the fuel equipment 23 to flow into the desulfurization tower 22.

[0061] Taking the fuel equipment 23 as an example, which is equipped with a main engine 233, three generators 232 and two boilers 231, in order to allow all the flue gas generated by the fuel equipment 23 when working to enter the desulfurization tower 22 and complete the desulfurization treatment in the desulfurization tower 22 to reduce the pollution of sulfur oxides in the flue gas generated by the fuel equipment 23 to the atmosphere, in the embodiment of the present disclosure, one main engine 233, three generators 232 and two boilers 231 are all connected to the desulfurization tower 22. When the fuel equipment 23 is working, the flue gas enters the desulfurization tower 22 through the exhaust pipe 24 and undergoes desulfurization treatment to reduce the sulfur content in the flue gas and reduce the pollution of sulfur oxides to the atmosphere.

[0062] It should be noted that due to the limited size and power of the desulfurization tower 22, when a main engine 233, three generators 232 and two boilers 231 in the fuel equipment 23 are running at the same time, the total amount of flue gas generated by the fuel equipment 23 may exceed the load of the desulfurization tower 22, and the sulfur oxides in the flue gas cannot fully react with the desulfurizer for desulfurization, which may lead to a decrease in desulfurization efficiency. In addition, long-term overload operation of the desulfurization tower 22 may accelerate the wear and aging of the desulfurization tower 22, and may even cause a certain degree of damage to the desulfurization tower 22, thereby increasing the maintenance and replacement costs of the desulfurization tower 22.

[0063] To avoid the above problems, a control valve 25 is provided on the smoke exhaust pipe 24 in the embodiment of the present disclosure. By controlling the switch of the control valve 25 to limit the flue gas from entering the desulfurization tower 22, the flue gas entering the desulfurization tower 22 can be prevented from exceeding the load of the desulfurization tower 22.

[0064] In one embodiment of the present disclosure, the desulfurization system 2 includes a component detector, and a plurality of component detectors are provided. A component detector is provided at the entrance of each smoke exhaust pipe 24. The component detector is used to detect the sulfur content in the flue gas in the fuel equipment 23. The component detector is connected to the control box 26 and feeds back the sulfur content of the flue gas of the fuel equipment 23 to the control box 26.

[0065] It should be noted that the "inlet of the smoke exhaust pipe 24" mentioned above refers to the side of the smoke exhaust pipe 24 close to the fuel equipment 23. At this time, the component detector is located on the side of the control valve 25 away from the desulfurization tower 22 (that is, the component detector is located between the inlet of the smoke exhaust pipe 24 and the control valve 25), and detects the sulfur content of the flue gas generated by the fuel equipment 23. When the component detector detects that the sulfur content of the flue gas is less than or equal to the standard value, the control box 26 controls the smoke exhaust main valve 251 to open, and at the same time controls the corresponding smoke exhaust bypass valve 252 to close, and the smoke generated by the fuel equipment 23 flows directly into the atmosphere; when the component detector detects that the sulfur content of the flue gas is greater than the standard value, the control box 26 controls the smoke exhaust bypass valve 252 to open, and at the same time controls the corresponding smoke exhaust main valve 251 to close, and the smoke generated by the fuel equipment 23 flows to the desulfurization tower 22 through the smoke exhaust pipe 24.

[0066] It should also be noted that the control box 26 exercises independent control over each control valve 25. For example, when a main engine 233, two generators 232 and a boiler 231 are working simultaneously in the desulfurization system 2, if the flue gas generated by the boiler 231 is detected by a component detector and shows that the sulfur content of the flue gas is less than or equal to the standard value, the sulfur content in the flue gas generated by the main engine 233 and the two generators 232 is greater than the standard value, then the control box 26 controls the exhaust main valve 251 corresponding to the boiler 231 to open, and the exhaust bypass valve 252 corresponding to the boiler 231 to close, and the flue gas generated by the boiler 231 flows directly into the atmosphere. At the same time, the control box 26 controls the exhaust main valve 251 corresponding to the main engine 233 and the two generators 232 to close, and opens the exhaust bypass valve 252 corresponding to the main engine 233 and the two generators 232, so that the flue gas generated by the main engine 233 and the two generators 232 enters the desulfurization tower 22 for desulfurization treatment.

[0067] In addition, the "standard value" mentioned above can be set to a sulfur content equal to 0.5%, but is not limited thereto and can be determined according to actual conditions.

[0068] It should be noted that when the fuel oil equipment 23 is in operation, the exhaust main valve 251 and the exhaust bypass valve 252 corresponding to the fuel oil equipment 23 are in an open and closed state. It should be understood that when the fuel oil equipment 23 starts to operate, the internal temperature of the fuel oil equipment 23 rises. If the exhaust main valve 251 and the exhaust bypass valve 252 are closed at the same time, as the temperature rises, the pressure inside the fuel oil equipment 23 also increases, which may cause safety hazards. By controlling the opening and closing of the exhaust main valve 251 and the exhaust bypass valve 252, the flue gas generated by the fuel oil equipment 23 can be controlled to flow from the fuel oil equipment 23 to the desulfurization tower 22 or the atmosphere, so as to reduce the fuel oil equipment 23, and improve the safety of the desulfurization system 2. At the same time, the greater the pressure difference before and after the control valve 25, the greater the resistance when opening the control valve 25, which may make the control valve 25 difficult to open, or the force to open the control valve 25 is too large, thereby causing damage to the control valve 25. By controlling the opening and closing of the smoke exhaust main valve 251 and the smoke exhaust bypass valve 252, the flue gas generated by the fuel equipment 23 flows into the desulfurization tower 22 or the atmosphere, which can reduce the pressure difference before and after the control valve 25, thereby reducing the resistance when opening the control valve 25, avoiding damage to the control valve 25, and extending the service life of the desulfurization system 2.

[0069] In another embodiment of the present disclosure, the desulfurization system 2 includes a flow detector, which is arranged in the exhaust pipe 24 and is used to detect the amount of flue gas generated by the fuel equipment 23. The flow detector is connected to the control box 26 signal and feeds back the amount of flue gas generated by the fuel equipment 23 to the control box 26.

[0070] It should be noted that the flow detector is located on the side of the control valve 25 away from the desulfurization tower 22 (that is, the flow detector is located between the entrance of the smoke exhaust pipe 24 and the control valve 25). The flow detector is used to detect the flow of flue gas entering the smoke exhaust pipe 24, that is, the amount of flue gas generated by the fuel equipment 23. When each flow detector detects that the sum of the flue gas amounts is less than or equal to the load of the desulfurization tower 22, the control box 26 controls the smoke exhaust bypass valve 252 to open, and at the same time controls the corresponding smoke exhaust main valve 251 to close, and the smoke generated by the fuel equipment 23 flows to the desulfurization tower 22 through the smoke exhaust pipe 24; when the flow detector detects that the sum of the flue gas flow rates is greater than the load of the desulfurization tower 22, the control box 26 controls the smoke exhaust bypass valve 252 to close, and at the same time controls the corresponding smoke exhaust main valve 251 to open, and the smoke generated by the fuel equipment 23 flows directly into the atmosphere.

[0071] It should be noted that since the control box 26 independently controls each control valve 25, when the flow detector detects that the total flow of the flue gas is greater than the load of the desulfurization tower 22, the control box 26 can control one or more exhaust bypass valves 252 to close, and at the same time control the corresponding exhaust main valve 251 to open, so that a part of the flue gas generated by the fuel equipment 23 flows directly to the atmosphere, and another part of the flue gas generated by the fuel equipment 23 flows to the desulfurization tower 22 through the exhaust pipe 24, thereby avoiding the amount of flue gas entering the desulfurization tower 22 exceeding the load of the desulfurization tower 22, so that the sulfur oxides in the flue gas can fully react with the desulfurizer to improve the desulfurization efficiency and reduce the pollution of the flue gas to the atmosphere. At the same time, by avoiding long-term overload operation of the desulfurization tower 22, the wear and aging of the desulfurization tower 22 can also be slowed down, the maintenance cost of the desulfurization tower 22 can be reduced, and the service life of the desulfurization system 2 can be extended.

[0072] In addition, the desulfurization system 2 in the embodiment of the present disclosure may also include a component detector and a flow detector at the same time, that is: a component detector is set at the entrance of each smoke exhaust pipe 24, and a flow detector is set in the smoke exhaust pipe 24 at the same time. The component detector is used to detect the sulfur content in the flue gas in the fuel equipment 23. The component detector is connected to the control box 26 and feeds back the sulfur content of the flue gas of the fuel equipment 23 to the control box 26. The flow detector is used to detect the flow of the flue gas entering the smoke exhaust pipe 24. The flow detector is connected to the control box 26 signal and feeds back the flow of the flue gas of the fuel equipment 23 to the control box 26.

[0073] After the fuel equipment 23 starts running, the flue gas generated enters the exhaust pipe 24, the component detector detects the sulfur content in the flue gas, and the flow detector detects the flow of the flue gas entering the exhaust pipe 24. The component detector feeds back the detected sulfur content to the control box 26, and the flow detector feeds back the detected flue gas flow to the control box 26. When the component detector detects that the sulfur content of the flue gas is less than or equal to the standard value, the control box 26 controls the corresponding exhaust main valve 251 to open, and at the same time controls the corresponding exhaust bypass valve 252 to close. At this time, the flue gas with a sulfur content less than or equal to the standard value flows directly into the atmosphere; when the component detector detects that the sulfur content of the flue gas is greater than the standard value, and the flow detectors detect that the sum of the flow rates of the flue gas is less than or equal to the load of the desulfurization tower 22, the control box 26 controls the corresponding exhaust bypass valve 252 to open, and at the same time controls the corresponding exhaust main valve 251 to close. At this time, the flue gas with a sulfur content greater than the standard value flows to the desulfurization tower 22 through the exhaust pipe 24.

[0074] It should be noted that in order to avoid the situation where the sulfur content of the flue gas generated by the fuel equipment 23 is greater than the standard value and the total amount of flue gas is greater than the load of the desulfurization tower 22, the total amount of flue gas generated by the fuel equipment 23 can be controlled to be less than or equal to the load of the desulfurization tower 22 by controlling the operating conditions of the desulfurization system 2.

[0075] Taking the fuel equipment 23 provided with a main engine 233, three generators 232 and two boilers 231 as an example, the operating condition in which a main engine 233, two generators 232 and one boiler 231 are operated simultaneously can be set as the maximum operating condition of the desulfurization system 2. Under the maximum operating condition, the total amount of flue gas generated by the fuel equipment 23 is less than or equal to the load of the desulfurization tower 22, thereby ensuring that the flue gas generated by the fuel equipment 23 during operation does not exceed the load of the desulfurization tower 22, but not limited to this. The main engine 233, generator 232 and boiler 231 in the fuel equipment 23 can be combined according to actual conditions to form other operating conditions. Other operating conditions are within the scope of the disclosure of the embodiments of the present disclosure as long as the flue gas generated by the fuel equipment 23 does not exceed the load of the desulfurization tower 22.

[0076] In the disclosed embodiment, the main deck 210 is provided with a chimney area 2101 and a building area 2102. The desulfurization tower 22 is arranged in the chimney area 2101, and the building area 2102 can be used for living. By distributing the chimney area 2101 and the building area 2102 at intervals, the noise generated during the operation of the desulfurization tower 22 and the impact of the emitted flue gas on the residents in the building area 2102 can be reduced, thereby improving the scientific nature of the structural design of the desulfurization system 2 and improving the competitiveness of the desulfurization system 2.

[0077] In addition, the chimney area 2101 may also include a first chimney area 2101a and a second chimney area 2101b. Both the first chimney area 2101a and the second chimney area 2101b are located on the main deck 210, and both the first chimney area 2101a and the second chimney area 2101b are spaced apart from the building area 2102. When setting up the desulfurization tower 22, you can arbitrarily choose between the first chimney area 2101a and the second chimney area 2101b according to the positional relationship between the desulfurization tower 22 and the main engine 233, the generator 232, and the boiler 231, thereby simplifying the connection line between the desulfurization tower 22 and the fuel equipment 23 and reducing the manufacturing cost of the desulfurization system 2.

[0078] The embodiment of the present disclosure provides a ship 1, including a hull 3 and any one of the desulfurization systems 2 as described above. The desulfurization system 2 is arranged on the hull 3. The main engine 233 in the desulfurization system 2 can provide power for the ship 1. At the same time, the flue gas generated during the operation of the ship 1 can also be introduced into the desulfurization system 2. The flue gas is discharged into the atmosphere after being desulfurized by the desulfurization tower 22, which can reduce the sulfur content in the flue gas and thus reduce pollution to the atmosphere.

[0079] Furthermore, the hull 3 may include a stern area, an engine room area, a cargo hold area and a bow area. The engine room area is located between the stern area and the cargo hold area, and the cargo hold area is located between the engine room area and the bow area. The desulfurization system 2 in the embodiment of the present disclosure is arranged in the engine room area, which can avoid the desulfurization system 2 occupying the space for cargo loading and even causing difficulties in cargo loading and unloading.

[0080] In the disclosed embodiment, the portions of the second deck 211 and the third deck 212 corresponding to the main engine 233 are provided with hollow areas, and part of the structure of the main engine 233 is located in the hollow areas of the second deck 211 and the third deck 212 .

[0081] It should be noted that the main engine 233, as the heart of the ship's power, generally does not change its position, and the size of the main engine 233 may be related to the volume of the hull 3. The larger the volume of the hull 3, the larger the volume of the main engine 233, so that sufficient power can be provided for the ship 1 to keep the ship 1 floating on the water. When the height of the main engine 233 exceeds the height between the third deck 212 and the fourth deck 213, a hollow area is set on the part of the second deck 211 and the third deck 212 corresponding to the main engine 233, and a partial structure of the main engine 233 is placed in the hollow area of ​​the second deck 211 and the third deck 212 to ensure that the main engine 233 can be placed in the original position.

[0082] In addition, the hull 3 in the embodiment of the present disclosure may be a 115000 DWT LR2 oil tanker, but is not limited thereto, and other hulls 3 similar to the 115000 DWT LR2 oil tanker are also included in the scope of the present disclosure.

[0083] The disclosed embodiment arranges a smoke exhaust pipe 24 on the fuel equipment 23, and connects the smoke exhaust pipe 24 to the desulfurization tower 22, so that the flue gas generated by the fuel equipment 23 can enter the desulfurization tower 22 for desulfurization treatment, so as to reduce the sulfur content in the flue gas and reduce the pollution of the flue gas to the atmosphere. At the same time, a control valve 25 is arranged on each smoke exhaust pipe 24. By controlling the opening and closing of the control valve 25, the flow direction of the flue gas generated by the fuel equipment 23 can be controlled to avoid the amount of flue gas entering the desulfurization tower 22 exceeding the load of the desulfurization tower 22, so that the sulfur oxides in the flue gas can fully react with the desulfurizer for desulfurization, so as to improve the desulfurization efficiency, avoid wear and aging of the desulfurization tower 22 due to long-term overload operation, reduce the maintenance cost of the desulfurization tower 22, and extend the service life of the desulfurization system 2.

[0084] It should be noted that since the main engine 233, generator 232, and boiler 231 that generate flue gas in the desulfurization system 2 are all connected to the desulfurization tower 22, that is, all flue gas generated by the fuel equipment 23 can enter the desulfurization tower 22 for desulfurization treatment to reduce the sulfur content of the flue gas. Therefore, the embodiment of the present disclosure can also use heavy oil instead of light oil as fuel to reduce the operating cost of the ship 1.

[0085] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the feature. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0086] It should be noted that "upper", "lower", "left", "right" and the like are only used for distinction to facilitate description, and do not impose any directional limitation on the embodiments of the present invention. For example, the "upper" may actually be "lower", "left", "right" and other directions. In the present disclosure, unless otherwise clearly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral whole; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium; it may be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0087] In the description of this specification, the description with reference to the terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0088] Although the embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and cannot be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present disclosure. Therefore, any changes or modifications made in accordance with the claims and specification of the present disclosure shall fall within the scope covered by the patent of the present disclosure.

Claims

1. A desulfurization system, characterized in that: The desulfurization system includes a main deck for loading cargo, and a second deck, a third deck and a fourth deck arranged sequentially below the main deck, and the desulfurization system also includes: A desulfurization tower, arranged on the main deck; Fuel-fired equipment, including a boiler, a generator and a main engine, wherein the boiler is arranged on the second deck, the generator is arranged on the third deck, and the main engine is arranged on the fourth deck; A plurality of exhaust pipes, wherein the plurality of exhaust pipes are respectively arranged between the boiler, the generator, the main engine and the desulfurization tower, so that the flue gas generated by the fuel oil equipment flows to the desulfurization tower through the exhaust pipes; A control valve, wherein a plurality of control valves are provided, and one of the control valves is provided in one of the exhaust pipes; The control box is connected to each of the control valves and controls the switch of each of the control valves based on the operation signal of the fuel equipment.

2. The desulfurization system according to claim 1, characterized in that: The desulfurization system also includes: The washing water pump is connected to the control box signal and a connecting pipeline is arranged between the washing water pump and the desulfurization tower. The control box controls the start and shut down of the washing water pump and the desulfurization tower based on the operation signal of the fuel equipment.

3. The desulfurization system according to claim 2, characterized in that: The desulfurization system also includes: A water tank is communicated with the washing water pump and supplies water to the washing water pump.

4. The desulfurization system according to claim 1, characterized in that: The control valve includes a smoke exhaust main valve and a smoke exhaust bypass valve, which are connected in parallel. The smoke exhaust main valve is used to control the smoke generated by the fuel equipment to flow into the atmosphere, and the smoke exhaust bypass valve is used to control the smoke generated by the fuel equipment to flow into the desulfurization tower.

5. The desulfurization system according to claim 4, characterized in that: The desulfurization system includes a component detector, a plurality of component detectors are provided, one component detector is provided at the entrance of each exhaust pipe, the component detector is used to detect the sulfur content in the flue gas in the fuel oil equipment, the component detector is connected to the control box, and feeds back the sulfur content of the flue gas of the fuel oil equipment to the control box; Wherein, when the sulfur content detected by the component detector is less than or equal to the standard value, the control box controls the main exhaust valve to open; When the sulfur content detected by the component detector is greater than the standard value, the control box controls the exhaust bypass valve to open.

6. The desulfurization system according to claim 4, characterized in that: The desulfurization system includes a flow detector, which is arranged in the exhaust pipe and is used to detect the amount of flue gas generated by the fuel oil equipment. The flow detector is connected to the control box signal and feeds back the amount of flue gas generated by the fuel oil equipment to the control box. Wherein, when the sum of the flue gas volumes detected by the flow detector is less than or equal to the load of the desulfurization tower, the control box controls the exhaust bypass valve to open; When the total amount of flue gas detected by the flow detector is greater than the load of the desulfurization tower, the control box controls the main exhaust valve to open.

7. The desulfurization system according to claim 1, characterized in that: The main deck is provided with a chimney area and a building area, the desulfurization tower is arranged in the chimney area, and the chimney area and the building area are distributed at intervals.

8. A ship, characterized in that: It comprises a hull and a desulfurization system as claimed in any one of claims 1 to 7, wherein the desulfurization system is arranged on the hull.

9. The ship according to claim 8, characterized in that: The hull includes a stern area, an engine room area, a cargo hold area and a bow area. The engine room area is located between the stern area and the cargo hold area, the cargo hold area is located between the engine room area and the bow area, and the desulfurization system is arranged in the engine room area.

10. The ship according to claim 8, characterized in that: The second deck and the third deck are provided with hollow areas corresponding to the main engine, and a partial structure of the main engine is located in the hollow areas of the second deck and the third deck.

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