A desulfurization device for ships

Abstract

The desulfurization device for ships disclosed in the present invention comprises: a first tower body, the inner cavity of the first tower body is slidably connected to a travel frame, and a spray device is arranged on the travel frame; a second tower body, the side wall of the second tower body is penetrated with an operation hole, and a filter plate is installed on the operation hole toward the inner cavity of the second tower body; a switching state component, the switching state component comprises a movable ring, at least one air inlet pipe, and a sliding body, the movable ring is movably sleeved on the second tower body, the movable ring and the travel frame are mutually connected, and the side wall of the second tower body is penetrated with a vent; a lifting drive device. The desulfurization device for ships of the present invention can switch from the use mode to the shutdown mode according to the demand during maintenance, open the lower opening to discharge the scale after flushing, and at the same time, the sliding body corresponds to the position of the vent hole to block the vent hole and open the operation hole, so as to facilitate the staff to disassemble and assemble the filter plate from the operation hole to avoid affecting the maintenance work of the staff.

Description

Technical Field

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

[0002] The power unit used in transport ships is mainly a main engine that burns heavy diesel, which emits a large amount of exhaust gas during navigation. At present, a desulfurization device is usually used to desulfurize the ship's exhaust gas. In the prior art, the desulfurization tower is used as the desulfurization equipment of the ship system. It desulfurizes by spraying seawater. The small droplets formed by the seawater entering the nozzle after atomization contact the ship's exhaust gas, and washes and absorbs the sulfur dioxide in the ship's exhaust gas. The temperature of the ship's exhaust gas is high and the ship's exhaust gas contains particulate matter in addition to sulfur dioxide. The exhaust gas flowing into the desulfurization device generally floats upward. In order to prevent the nozzle from being blocked, a filter plate is usually set below the spray section. However, after long-term use, the desulfurization device still has scaling on the inner wall of the spray section and clogging of the filter plate. The desulfurization device needs to be regularly maintained. Among them, the cleaning of the inner wall of the spray section and the removal and replacement of the filter plate are relatively inconvenient, which is not only time-consuming and labor-intensive, but also may cause the accidental opening of the exhaust gas intake channel during maintenance, thereby affecting the maintenance work. Summary of the invention

[0003] The purpose of the present invention is to design a desulfurization device for ships in order to solve the deficiencies of the above-mentioned technology. During maintenance, the device can switch from the use mode to the shutdown mode as needed, and open the lower opening to discharge the scale after flushing. At the same time, the sliding body corresponds to the position of the vent hole to seal the vent hole and open the operating hole, so that the staff can disassemble and assemble the filter plate from the operating hole. The sliding body blocks the exhaust gas in the intake pipe from entering the inner cavity of the second tower body to avoid affecting the maintenance work of the staff.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a desulfurization device for ships, comprising:

[0005] a first tower body, wherein the first tower body has an upper opening and a lower opening, the upper opening cover is provided with an air outlet hood, the air outlet hood is connected to an exhaust pipe, the exhaust pipe is provided with an air pump, the inner cavity of the first tower body is slidably connected to a travel frame, and the travel frame is provided with a spray device;

[0006] a second tower body, wherein the second tower body is fixedly connected to the first tower body, the top of the second tower body is located at the lower opening and is connected to the inner cavity of the first tower body, an operation hole is passed through the side wall of the second tower body, and a filter plate is installed in the inner cavity of the second tower body;

[0007] A switching state component, the switching state component includes a movable ring, at least one air inlet pipe, and a sliding body, the movable ring is movably sleeved on the second tower body, the movable ring is connected to the travel frame, a vent hole is penetrated through the side wall of the second tower body, the vent hole is located below the operating hole, and a discharge space for the sliding body to be plugged in is formed between the second tower body and the lower opening;

[0008] A lifting drive device, wherein the lifting drive device adjusts the position of the travel frame in the vertical direction to form a use mode and a stop mode;

[0009] In the use mode, the travel frame approaches the air outlet hood, the sliding body is inserted into the unloading space to block the lower opening and the operation hole, and the air inlet pipe corresponds to the position of the air vent and is connected;

[0010] In the shutdown mode, the travel frame is away from the air outlet hood, the sliding body is separated from the unloading space to open the lower opening, the movable ring is close to the bottom of the second tower body, and the sliding body corresponds to the position of the vent to block the vent and open the operating hole.

[0011] Preferably, the second tower body is in the shape of a square column, and four discharge ports distributed in a ring array are formed between each side wall of the second tower body and the inner wall of the lower opening, and each of the discharge ports constitutes the discharge space, and the sliding body and the movable ring are integrally formed, and the sliding body includes four sliders distributed in a ring array, and each of the sliders is respectively plugged into and matched with each of the discharge ports.

[0012] Preferably, a limit plate is provided on the outer wall of the sliding block, and the top surface of the limit plate is in abutment with the bottom surface of the first tower body.

[0013] Preferably, at least one of the sliders is provided with the air inlet pipe, and the air vent penetrates through the mating surface close to the air inlet pipe.

[0014] Preferably, a mounting cover that enters into the first tower body is provided on the top of the second tower body, and a plurality of air outlet holes penetrate through the circumferential side wall of the mounting cover.

[0015] Preferably, the lifting drive device is fixedly connected to the top surface of the mounting cover, and a guide slope is formed on the edge of the top surface of the mounting cover.

[0016] Preferably, the number of the operation holes is at least two, and the operation holes are arranged at intervals and penetrate through the same side wall of the second tower body, or the operation holes are arranged at intervals and penetrate through different side walls of the second tower body.

[0017] Preferably, the inner cavity of the second tower body is symmetrically provided with two supporting bars at a position relative to the operating hole, the supporting bars are slidably connected with mounting positions, the two mounting positions are respectively adapted to two corners of the filter plate, and an elastic member is provided between the supporting bars and the mounting positions, so that the filter plate has a tendency to extend out of the operating hole.

[0018] Preferably, a guiding slope is formed on the bottom surface of the side of the filter plate extending out of the operating hole.

[0019] Preferably, the sliding body and / or the movable ring is provided with a guide column fixedly connected to the travel frame, and the first tower body is penetrated by a guide groove for the guide column to be slidably connected.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The inner cavity of the first tower body is the spray section, and the inner cavity of the second tower body is the filter section. In the use mode, the sliding body is inserted into the unloading space to block the lower opening of the first tower body, the air inlet pipe and the air vent are connected to each other, and the sliding part corresponds to the operation hole to prevent non-staff from disassembling the filter plate. The ship's exhaust gas enters the inner cavity of the second tower body through the air inlet pipe for filtering treatment. The filtered exhaust gas enters the first tower body through the top of the second tower body for spraying and dust reduction treatment, thereby improving the flue gas desulfurization efficiency of the ship's exhaust gas.

[0022] 2. The desulfurization device can switch from the use mode to the shutdown mode according to the needs during maintenance. The travel frame is driven by the lifting drive device to slide downward in the inner cavity of the first tower body. The travel frame drives the switching state component to move downward relative to the second tower body. The travel frame scrapes off the attachments on the inner cavity of the first tower body. The spray device on the travel frame flushes the inner cavity of the first tower body to reduce dust. The sliding body opens the lower opening in the desulfurization unloading space to discharge the detached scale and spray liquid. Until the movable ring is close to the bottom of the second tower body, the sliding body corresponds to the position of the vent to block the vent and open the operation hole, which is convenient for the staff to disassemble and assemble the filter plate from the operation hole. The sliding body blocks the exhaust gas in the intake pipe from entering the inner cavity of the second tower body to avoid affecting the maintenance work of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the desulfurization device in Example 1;

[0024] Figure 2 This is a cross-sectional view of the desulfurization device in the first embodiment when in use mode. Figure 1 ;

[0025] Figure 3 This is a cross-sectional view of the desulfurization device in the first embodiment when in use mode. Figure 2 ;

[0026] Figure 4 is a cross-sectional view of the desulfurization device in the first embodiment in the shutdown mode;

[0027] Figure 5 This is a cross-sectional view of the first tower body in Example 1. Figure 1 ;

[0028] Figure 6 This is a cross-sectional view of the first tower body in Example 1. Figure 2 ;

[0029] Figure 7 It is a cross-sectional view of the second tower body in the second embodiment.

[0030] In the figure: 1. first tower body; 101. upper opening; 102. lower opening; 103. travel frame; 104. spray device; 105. air outlet hood; 106. exhaust pipe; 107. vacuum pump; 2. second tower body; 201. operation hole; 202. filter plate; 203. vent hole; 204. movable hole; 205. fixing part; 206. movable groove; 3. switching state component; 31. movable ring; 32. air inlet pipe; 33. sliding body; 4. lifting drive device ; 5. Discharge space; 501. Discharge port; 6. Slider; 601. Limit plate; 7. Mounting cover; 701. Air outlet; 702. Guide slope; 8. Guide slope; 9. Support bar; 10. Mounting position; 11. Elastic member; 12. Guide column; 13. Guide groove; 14. Sealing cover; 15. Positioning device; 151. Positioning block; 1511. Driving surface; 152. Telescopic driving mechanism; 153. Reset structure; 16. Driving block; 17. Support part;. DETAILED DESCRIPTION

[0031] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings.

[0032] refer to Figure 1 A desulfurization device for a ship comprises a first tower body 1, a second tower body 2, a switching state component 3, and a lifting drive device 4. The first tower body 1 has an upper opening 101 and a lower opening 102. The upper opening 101 and the lower opening 102 are both connected to the inner cavity of the first tower body 1. The upper opening 101 is covered with an air outlet hood 105. The air outlet hood 105 is connected to an exhaust pipe 106. The exhaust pipe 106 is provided with an exhaust pump 107. The inner cavity of the first tower body 1 is a spray section.

[0033] The inner cavity of the first tower body 1 is slidably connected with a travel frame 103, and a spray device 104 is arranged on the travel frame 103. The spray device 104 is a spray head, which is a prior art and will not be described in detail here.

[0034] refer to Figure 6The second tower body 2 is located below the first tower body 1. The second tower body 2 is in a square column shape. The inner cavity of the second tower body 2 is a filtering section. The top of the second tower body 2 is located in the lower opening 102. The portion between two adjacent side walls of the second tower body 2 is fixedly connected to the inner wall of the lower opening 102, so that the second tower body 2 is fixedly connected to the first tower body 1. Four discharge ports 501 distributed in a circular array are formed between each side wall of the second tower body 2 and the inner wall of the lower opening 102, and each discharge port 501 constitutes a discharge space 5.

[0035] refer to Figure 2 A mounting cover 7 entering into the first tower body 1 is provided at the top of the second tower body 2. The mounting cover 7 is adapted in shape to the second tower body 2. A plurality of air outlet holes 701 are penetrated through the circumferential side wall of the mounting cover 7 so that the inner cavity of the second tower body 2 is connected with the inner cavity of the first tower body 1.

[0036] refer to Figure 3 , Figure 4 , Figure 5 Two operation holes 201 arranged at intervals are respectively penetrated on the two side walls of the second tower body 2. Two support bars 9 are symmetrically arranged at the position of the inner cavity of the second tower body 2 relative to the operation holes 201. The support bars 9 are slidably connected with mounting positions 10. The two mounting positions 10 are respectively matched with two corners of the filter plate 202. The filter plate 202 is inserted through the operation hole 201. The filter plate 202 is installed on the inner cavity of the second tower body 2. An elastic member 11 is arranged between the support bar 9 and the mounting position 10, so that the filter plate 202 has a tendency to extend out of the operation hole 201. A guide slope 8 is formed on the bottom surface of the side of the filter plate 202 extending out of the operation hole 201.

[0037] The switching state component 3 includes a movable ring 31, four air inlet pipes 32, and a sliding body 33. The movable ring 31 is movably sleeved on the second tower body 2. The sliding body 33 and the movable ring 31 are integrally formed. The sliding body 33 includes four sliders 6 distributed in a ring array. Each slider 6 is respectively plugged into each unloading port 501, so that the sliding body 33 is plugged into the unloading space 5.

[0038] The movable ring 31 and the travel frame 103 are connected to each other through four guide columns 12. The guide columns 12 are located between two adjacent sliders 6. The two ends of the guide columns 12 are respectively fixedly connected to the opposite sides of the movable ring 31 and the travel frame 103. The first tower body 1 is penetrated with a guide groove 13 for sliding connection of the guide columns 12. The side wall of the second tower body 2 close to the air inlet pipe 32 is penetrated with a vent hole 203.

[0039] The lifting drive device 4 is a telescopic cylinder or an electric push rod. The lifting drive device 4 is fixedly connected to the top surface of the mounting cover 7. The lifting end of the lifting drive device 4 is fixedly connected to the travel frame 103. The lifting drive device 4 adjusts the position of the travel frame 103 in the vertical direction to form a use mode and a stop mode.

[0040] In the use mode, the travel frame 103 is driven by the lifting drive device 4 to slide upward in the inner cavity of the first tower body 1, and the travel frame 103 approaches the air outlet hood 105. The guide slope 8 of the filter plate 202 conflicts with the corresponding slider 6. Under the guidance of the guide slope 8, the filter plate 202 is pressed back inward, and the elastic member 11 is compressed and contracted. The sliding body 33 is inserted into the unloading space 5 to block the lower opening 102 and the operating hole 201. The sliding body 33 corresponds to the operating hole 201 to prevent non-staff from disassembling the filter plate 202. Under the action of the elastic member 11, the side of the filter plate 202 is pressed against the inner wall of the slider 6 to help maintain the relative position of the sliding body 33 on the second tower body 2. A limit plate 601 is provided on the outer wall of the slider 6. When the top surface of the limit plate 601 is in contact with the bottom surface of the first tower body 1, the air inlet pipe 32 corresponds to and is connected with the air vent 203. The air inlet pipe 32 is used to connect the exhaust channel of ship waste. Other air inlet pipes 32 can be blocked by a blocking cover 14. Under the action of the vacuum pump 107, the ship exhaust gas enters the inner cavity of the second tower body 2 through the air inlet pipe 32 for filtering treatment. The filtered exhaust gas enters the first tower body 1 through the top of the second tower body 2 for spraying and dust reduction treatment, thereby improving the flue gas desulfurization efficiency of the ship's exhaust gas.

[0041] The desulfurization device can switch from the use mode to the shutdown mode according to the demand during maintenance. The travel frame 103 is driven by the lifting drive device 4 to slide downward in the inner cavity of the first tower body 1. The travel frame 103 drives the switching state component 3 to move downward relative to the second tower body 2 to move away from the gas outlet hood 105. The travel frame 103 scrapes off the attachments on the inner cavity of the first tower body 1. The spray device 104 on the travel frame 103 flushes and dusts the inner cavity of the first tower body 1. The sliding body 33 is separated from the unloading space 5 to open the lower opening 102 to discharge the detached scale and spray liquid. A guide slope 702 is formed on the edge of the top surface of the mounting cover 7. When the spray liquid passes through the guide slope 702, due to the effect of gravity, the spray liquid slowly tilts along the guide slope 702 and flows down to each unloading port 501. In the process of flowing down, many fine spray liquids are intertwined to form a water curtain, which can prevent foreign matter from entering the gas outlet 701 to a certain extent. Until the movable ring 31 is close to the bottom of the second tower body 2, the operating hole 201 and the corresponding slider 6 are completely offset, the sliding body 33 corresponds to the position of the vent hole 203 to block the vent hole 203 and open the operating hole 201, and the elastic member 11 recovers its deformation to drive the filter plate 202 to extend out of the operating hole 201, so that the staff can disassemble and assemble the filter plate 202 from the operating hole 201. The sliding body 33 blocks the exhaust gas in the intake pipe 32 from entering the inner cavity of the second tower body 2 to avoid affecting the maintenance work of the staff.

[0042] Embodiment 2:

[0043] refer to Figure 7, which is different from the first embodiment, a positioning device 15 for limiting the sliding body 33 is provided in the inner cavity of the second tower body 2, and four positioning devices 15 are provided, each positioning device 15 is matched with each air inlet pipe 32, and the second tower body 2 is penetrated with a movable hole 204 at the lower part relative to the vent hole 203, and the positioning device 15 includes a positioning block 151, a telescopic driving mechanism 152, and a reset structure 153. A fixing part 205 is fixedly connected to the inner cavity of the second tower body 2 at a position relative to the movable hole 204, and the movable hole 204 penetrates the fixing part 205, and the fixing part 205 is fixedly connected to the inner cavity of the second tower body 2. The positioning block 151 is slidably connected in the movable hole 204, and the inner wall of the movable hole 204 is provided with a movable groove 206. The positioning block 151 is provided with a movable block slidably connected in the movable groove 206. The reset structure 153 is a spring structure, and the reset structure 153 is sleeved on the positioning block 151. The two ends of the reset mechanism are respectively arranged between the movable groove 206 and the movable hole 204, so that the positioning block 151 has a tendency to extend outward from the movable hole 204, and the bottom of the end of the positioning block 151 extending out of the movable hole 204 is formed with a downwardly inclined driving surface 1511. The telescopic driving mechanism 152 is arranged on the positioning block 151, and the telescopic driving mechanism 152 is a telescopic cylinder. The telescopic end of the telescopic driving mechanism 152 is connected to the corresponding positioning block 151, and the telescopic driving mechanism 152 drives the positioning block 151 to retract inward. The inner wall of the opening of the air inlet pipe 32 close to the second tower body 2 is provided with a driving block 16, and the driving block 16 is in contact with the opposite side of the driving surface 1511.

[0044] During the downward movement of each slider 6, when the air inlet pipe 32 corresponds to the movable hole 204, the telescopic driving mechanism 152 releases the positioning block 151, and the elastic force of the reset structure 153 assists the positioning block 151 to extend outward, and each positioning block 151 extends into each air inlet pipe 32 respectively to prevent each slider 6 from continuing to move downward, so as to ensure that each air vent 203 stays on the inner wall of each slider 6 respectively, and the driving block 16 is in contact with the opposite side of the driving surface 1511, and the top surface of the positioning block 151 is in contact with the top inner wall of the air inlet pipe 32 to form a labyrinth seal, thereby improving the sealing between each air inlet pipe 32 and the second tower body 2 in the shutdown mode.

[0045] When the desulfurization mold is switched from the shutdown mode to the use mode, each slider 6 moves up, and each telescopic driving mechanism 152 drives the common positioning block 151 to retreat inward. In this process, the upward slider 6 assists the positioning block 151 to retreat by using the inclined surface guidance of the driving block 16 and the driving surface 1511. After each slider 6 moves up to the position, each air inlet pipe 32 is connected with each air vent 203 respectively, and the telescopic driving mechanism 152 releases the positioning block 151. The elastic force of the reset structure 153 assists the positioning block 151 to extend outward. Each positioning block 151 extends to the bottom of each air inlet pipe 32 respectively. The bottom of the air inlet pipe 32 is fixedly connected with a support part 17. The bottom surface of the support part 17 abuts against the top surface of the corresponding positioning block 151. Each positioning block 151 cooperates to support each slider 6 to maintain the position of each slider 6 on the second tower body 2, thereby maintaining the position of the travel frame 103 on the first tower body 1.

[0046] Of course, the above are only typical examples of the present invention. In addition, the present invention may also have many other specific implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A desulfurization device for a ship, characterized in that: include: A first tower body (1), the first tower body (1) having an upper opening (101) and a lower opening (102), the upper opening (101) being covered with a gas outlet hood (105), the gas outlet hood (105) being connected to an exhaust pipe (106), the exhaust pipe (106) being provided with an air pump (107), the inner cavity of the first tower body (1) being slidably connected to a travel frame (103), the travel frame (103) being provided with a spray device (104); a second tower body (2), wherein the second tower body (2) is fixedly connected to the first tower body (1), the top of the second tower body (2) is located at the lower opening (102) and is in communication with the inner cavity of the first tower body (1), an operation hole (201) is passed through the side wall of the second tower body (2), and a filter plate (202) is installed in the inner cavity of the second tower body (2); A switching state component (3), the switching state component (3) comprising a movable ring (31), at least one air inlet pipe (32), and a sliding body (33), the movable ring (31) being movably sleeved on the second tower body (2), the movable ring (31) and the travel frame (103) being connected to each other, a vent hole (203) penetrating the side wall of the second tower body (2), the vent hole (203) being located below the operating hole (201), and a discharge space (5) for plugging the sliding body (33) is formed between the second tower body (2) and the lower opening (102); A lifting drive device (4), wherein the lifting drive device (4) adjusts the position of the travel frame (103) in the vertical direction to form a use mode and a stop mode; In the use mode, the travel frame (103) approaches the air outlet cover (105), the sliding body (33) is inserted into the unloading space (5) to block the lower opening (102) and the operating hole (201), and the air inlet pipe (32) corresponds to the position of the air vent (203) and is connected; In the shutdown mode, the travel frame (103) is away from the air outlet hood (105), the sliding body (33) is separated from the unloading space (5) to open the lower opening (102), the movable ring (31) is close to the bottom of the second tower body (2), and the sliding body (33) corresponds to the position of the vent hole (203) to block the vent hole (203) and open the operating hole (201).

2. A marine desulfurization device according to claim 1, characterized in that: The second tower body (2) is in the shape of a square column. Four discharge ports (501) distributed in a ring array are formed between each side wall of the second tower body (2) and the inner wall of the lower opening (102). Each of the discharge ports (501) constitutes the discharge space (5). The sliding body (33) and the movable ring (31) are integrally formed. The sliding body (33) includes four sliders (6) distributed in a ring array. Each of the sliders (6) is plugged into and matched with each of the discharge ports (501).

3. A marine desulfurization device according to claim 2, characterized in that: The outer wall of the sliding block (6) is provided with a limiting plate (601), and the top surface of the limiting plate (601) is in contact with the bottom surface of the first tower body (1).

4. A marine desulfurization device according to claim 2, characterized in that: At least one of the sliders (6) is provided with the air inlet pipe (32), and the air vent (203) penetrates through the side wall of the second tower body (2) close to the air inlet pipe (32).

5. A marine desulfurization device according to claim 2, characterized in that: The top of the second tower body (2) is provided with a mounting cover (7) that enters into the first tower body (1), and a plurality of air outlet holes (701) are penetrated through the circumferential side wall of the mounting cover (7).

6. A marine desulfurization device according to claim 5, characterized in that: The lifting drive device (4) is fixedly connected to the top surface of the mounting cover (7), and a guide slope (702) is formed on the edge of the top surface of the mounting cover (7).

7. A marine desulfurization device according to claim 2, characterized in that: The number of the operation holes (201) is at least two, and the operation holes (201) are arranged at intervals and penetrate through the same side wall of the second tower body (2), or the operation holes (201) are arranged at intervals and penetrate through different side walls of the second tower body (2).

8. A marine desulfurization device according to claim 1 or 7, characterized in that: Two support bars (9) are symmetrically arranged in the inner cavity of the second tower body (2) at a position relative to the operating hole (201); the support bars (9) are slidably connected to mounting positions (10); the two mounting positions (10) are respectively matched with two corners of the filter plate (202); an elastic member (11) is arranged between the support bars (9) and the mounting positions (10), so that the filter plate (202) has a tendency to extend out of the operating hole (201).

9. A marine desulfurization device according to claim 5, characterized in that: A guiding slope (8) is formed on the bottom surface of the side of the filter plate (202) extending out of the operating hole (201).

10. A marine desulfurization device according to claim 1, characterized in that: The sliding body (33) and / or the movable ring (31) is provided with a guide column (12) fixedly connected to the travel frame (103), and the first tower body (1) is penetrated by a guide groove (13) for the guide column (12) to be slidably connected.

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