An exhaust gas treatment and filtering device for ships

Abstract

The utility model discloses an exhaust gas treatment filter device for ships, which relates to the technical field of exhaust gas treatment, including a filter bin, the bottom of which is connected to an air inlet pipe, a plurality of filter screens are arranged in the filter bin, a back-blowing bin is installed on one side of the filter bin, each filter screen can be recovered into the back-blowing bin through a traction component, a plurality of filter screen deployment mechanisms corresponding to the positions of the filter screens are arranged on the side of the filter bin opposite to the back-blowing bin; the filter bin is connected to the top of the back-blowing bin through a plurality of rows of return pipes installed on the top; an exhaust pipe is connected to the bottom of the back-blowing bin for leading out the airflow passing through the back-blowing bin, the utility model adopts an alternating filter screen design, and at the same time, the filtered airflow can be used to back-blow the other side of the filter screen, achieving a secondary filtering effect, thereby making full use of the filter screen for filtering.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment technology, in particular to an waste gas treatment filtering device for ships. Background Art

[0002] During the operation of ships, the exhaust gas generated by engines and fuel combustion poses a serious threat to the environment and human health. The exhaust gas mainly contains harmful substances such as sulfur oxides, nitrogen oxides, particulate matter and volatile organic compounds. In order to deal with these pollution problems, ship exhaust gas treatment and filtration devices came into being.

[0003] However, the existing filtration treatment has the following problems: (1) The filter material is saturated and replaced frequently. Harmful substances in the exhaust gas will gradually accumulate on the filter material, causing the filter material to be saturated and the filtration efficiency to decrease. Therefore, the filter material needs to be replaced frequently, which increases maintenance costs and operational difficulties. (2) Existing filtration devices usually use a single filter screen. Once the filter screen is saturated or damaged, it needs to be shut down for replacement, affecting the normal operation of the ship. Utility Model Content

[0004] The utility model aims to provide an exhaust gas treatment filter device for ships, which adopts an alternating filter screen design and can use the filtered airflow to back-blow the other side of the filter screen to achieve a secondary filtering effect, thereby fully utilizing the filter screen for filtering.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an exhaust gas treatment filter device for ships, comprising a filter chamber, the bottom of which is connected to an air intake pipe, a plurality of filter screens are arranged in the filter chamber, a back-blowing chamber is installed on one side of the filter chamber, each group of the filter screens can be recovered into the back-blowing chamber through a traction assembly, and a plurality of filter screen deployment mechanisms corresponding to the positions of the filter screens are arranged on one side of the filter chamber opposite to the back-blowing chamber;

[0006] The filter bin is connected to the top of the back-blowing bin through multiple rows of return pipes installed on the top, so as to allow the airflow filtered by the filter bin to enter the back-blowing bin through the return pipes.

[0007] The bottom of the back-blowing bin is connected with an exhaust pipe for guiding out the airflow passing through the back-blowing bin.

[0008] Furthermore, two groups of filter screens are provided in the filter bin, and the filter screens are made of foldable flexible materials. Each group of filter screens is connected to the traction assembly and filter screen unfolding mechanism at a position corresponding to the filter screen.

[0009] Furthermore, the traction assembly includes an air rod installed on the side of the back-blowing bin away from the filter screen, the output end of the air rod extends into the interior of the back-blowing bin, and a U-shaped part is provided on the side of the filter screen close to the back-blowing bin. A connecting rod is vertically provided on the U-shaped part, which passes through the sides of the U-shaped part and the filter screen. The U-shaped part is connected to the output end of the air rod, and the U-shaped part and the filter screen are driven by the air rod to achieve horizontal movement, thereby recovering the filter screen into the back-blowing bin.

[0010] Furthermore, the filter unfolding mechanism includes two groups of parallel and spaced reels installed on the filter bin, the two groups of reels are connected by a synchronous shaft, one of the reels is provided with a motor and a motor mounting frame installed on the filter bin, a fixed block is provided on the side of the filter net near the reel, the fixed block and the reel are connected by a winding rope, when the motor drives the reel to rotate, the winding rope can pull the filter net to unfold the filter net in a folded state, and lay it flat in the filter bin to filter the ship's exhaust gas, and one of the filter nets can be folded into the back-blowing bin by a traction assembly, and the airflow passing through the filter bin will enter the back-blowing bin again, so that the airflow passes through the other side of the filter net again for filtering, thereby improving the filtering effect of the exhaust gas.

[0011] Furthermore, a ventilation pipe is provided at the connection between the air inlet pipe and the bottom of the filter bin, and a blower is connected to the ventilation pipe, through which the airflow velocity of the exhaust gas entering the filter bin can be adjusted, thereby achieving suitable filtering conditions for the filter net.

[0012] Furthermore, a straight pipe is provided at the bottom of the filter bin, and the ship exhaust gas in the air inlet pipe is sent into the straight pipe under the action of the blower. A plurality of jet nozzles for spraying airflow in different angles are distributed on the straight pipe. The exhaust gas in the straight pipe is sprayed out by the jet nozzles in different directions, which can expand the movement range of the airflow so as to contact the filter more comprehensively, thereby avoiding saturation caused by concentrated filtration of a certain part of the filter for a long time.

[0013] Furthermore, a groove body which can be opened and closed by an electrical signal is provided on the side of the back-blowing chamber corresponding to the position of the filter screen. When the filter screen needs to enter the back-blowing chamber or move to the filter chamber, the groove body is controlled to open and close by an electrical signal, thereby preventing the exhaust gas from the ship from entering the back-blowing chamber when it needs to pass through the filter chamber.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0015] 1. The utility model adopts two sets of foldable filter screens, and realizes the folding and unfolding of the filter screens through the filter screen unfolding mechanism and the traction assembly. After one filter screen has worked for a period of time, it can be folded into the back-blowing bin through the traction assembly, while the other filter screen unfolds and continues to work. This design allows both sides of the filter screen to be utilized, prolongs the service life of the filter screen, and also improves the filtering efficiency and effect of the exhaust gas.

[0016] 2. In the utility model, a straight pipe and a plurality of air jets are arranged at the bottom of the filter bin, so that the exhaust gas is ejected from a plurality of different angles, thereby increasing the contact area and uniformity between the exhaust gas and the filter screen, and further improving the filtering efficiency.

[0017] 3. In the utility model, when one side of the filter is saturated due to long-term use, it can be recovered into the back-blowing bin by the traction component, and the filter can be back-blown and cleaned by the airflow passing through the filter bin, so as to effectively remove the particles attached to the filter, thereby restoring the filtering capacity of the filter. This design reduces the frequency of manual cleaning and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structural installation of the filter screen deployment mechanism in the utility model;

[0021] Figure 3 It is a top view of the internal structure of the filter bin in the utility model;

[0022] Figure 4 It is a schematic diagram of the structural installation of the back-blowing bin, the gas rod and the filter screen in the utility model;

[0023] Figure 5 yes Figure 4 A partial enlarged view of the middle A;

[0024] Figure 6 It is a schematic diagram of the structural installation of the blower and the air nozzle in the utility model.

[0025] In the figure: 1. filter chamber; 2. air inlet pipe; 3. filter screen; 4. back-blowing chamber; 5. traction assembly; 501. gas rod; 502. U-shaped piece; 503. connecting rod; 6. filter screen unfolding mechanism; 601. reel; 602. synchronous shaft; 603. motor; 604. fixing block; 7. return pipe; 8. exhaust pipe; 9. ventilation pipe; 10. blower; 11. straight pipe; 12. jet nozzle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 6 The utility model provides a technical solution: an exhaust gas treatment filter device for ships, comprising a filter chamber 1, the bottom of the filter chamber 1 is connected to an air intake pipe 2, a plurality of filter screens 3 are arranged in the filter chamber 1, a back-blowing chamber 4 is installed on one side of the filter chamber 1, each filter screen 3 can be recovered into the back-blowing chamber 4 through a traction component 5, and a plurality of filter screen deployment mechanisms 6 corresponding to the positions of the filter screens 3 are arranged on one side of the filter chamber 1 opposite to the back-blowing chamber 4;

[0028] The filter chamber 1 is connected to the top of the back-blowing chamber 4 through multiple rows of return pipes 7 installed on the top, so as to allow the airflow filtered by the filter chamber 1 to enter the back-blowing chamber 4 through the return pipes 7;

[0029] The bottom of the back-blowing bin 4 is connected with an exhaust pipe 8 for guiding out the airflow passing through the back-blowing bin 4 .

[0030] Furthermore, two groups of filter screens 3 are provided in the filter chamber 1. The filter screens 3 are made of foldable flexible materials. Each group of filter screens 3 is connected to the traction assembly 5 and the filter screen unfolding mechanism 6 at the corresponding position.

[0031] Furthermore, the traction assembly 5 includes a gas rod 501 installed on the side of the back-blowing bin 4 away from the filter screen 3, and the output end of the gas rod 501 extends into the interior of the back-blowing bin 4. A U-shaped part 502 is provided on the side of the filter screen 3 close to the back-blowing bin 4. A connecting rod 503 is vertically provided on the U-shaped part 502, which passes through the side of the U-shaped part 502 and the filter screen 3. The U-shaped part 502 is connected to the output end of the gas rod 501, and the U-shaped part 502 and the filter screen 3 are driven by the gas rod 501 to realize horizontal movement, thereby recovering the filter screen 3 into the back-blowing bin 4.

[0032] Furthermore, the filter unfolding mechanism 6 includes two groups of parallel and spaced reels 601 installed on the filter chamber 1, and the two groups of reels 601 are connected by a synchronous shaft 602. A motor 603 and a motor 603 mounting frame installed on the filter chamber 1 are provided on the side of one of the reels 601. A fixed block 604 is provided on the side of the filter 3 close to the reel 601. The fixed block 604 and the reel 601 are connected by a winding rope. When the motor 603 drives the reel 601 to rotate, the winding rope can pull the filter 3 to unfold the filter 3 in a folded state and lay it flat in the filter chamber 1 to filter the ship's exhaust gas. One of the filter screens 3 can be folded into the back-blowing chamber 4 through the traction component 5, and the airflow passing through the filter chamber 1 will enter the back-blowing chamber 4 again, so that the airflow passes through the other side of the filter screen 3 again for filtering, thereby improving the filtering effect of the exhaust gas.

[0033] Furthermore, a ventilation pipe 9 is provided at the connection between the air inlet pipe 2 and the bottom of the filter bin 1, and a blower 10 is connected to the ventilation pipe 9. The blower 10 can adjust the air flow rate of the exhaust gas entering the filter bin 1, thereby achieving suitable filtering conditions for the filter net 3.

[0034] Furthermore, a straight pipe 11 is provided at the bottom of the filter chamber 1. The ship exhaust gas in the air inlet pipe 2 is sent into the straight pipe 11 under the action of the blower 10. A plurality of jet nozzles 12 for spraying airflow in different angles are distributed on the straight pipe 11. The exhaust gas in the straight pipe 11 is sprayed out by the jet nozzles 12 in different directions, which can expand the movement range of the airflow so as to contact the filter 3 more comprehensively, thereby avoiding saturation caused by long-term concentrated filtration of a certain part of the filter 3.

[0035] Furthermore, a groove body which can be opened and closed by an electric signal is provided on the side of the back-blowing chamber 4 corresponding to the position of the filter screen 3. When the filter screen 3 needs to enter the back-blowing chamber 4 or move to the filter chamber 1, the groove body is controlled to open and close by an electric signal, thereby preventing the exhaust gas from the ship from entering the back-blowing chamber 4 while passing through the filter chamber 1.

[0036] Working principle:

[0037] The exhaust gas discharged by the ship is first introduced by the blower 10 through the air intake pipe 2. The blower 10 can adjust the flow rate of the exhaust gas entering the filter chamber 1 as needed. The exhaust gas then enters the straight pipe 11 at the bottom of the filter chamber 1. The multiple air nozzles 12 on the straight pipe 11 eject the exhaust gas at different angles, which expands the airflow coverage area, so that the exhaust gas can contact the filter screen 3 more fully, and improve the filtering efficiency. During the filtering process, the exhaust gas, under the action of the air nozzle 12, evenly passes through two groups of foldable flexible filter screens 3 arranged in the filter chamber 1. These filter screens 3 are controlled by the filter screen unfolding mechanism 6. The motor 603 drives the reel 601 to rotate, and the filter screen 3 is unfolded by the reel rope so that it is spread in the entire filter chamber 1 to capture and filter pollutants such as particulate matter in the exhaust gas. Once a group of filter screens 3 reaches a certain degree of blockage, the traction component 5 will retract the group of filter screens 3 to the backflush chamber 4. At this time, the filter screen unfolding mechanism 6 located on the other side of the filter chamber 1 will unfold another group of spare filter screens 3 to continue the exhaust gas filtration. The surface of the filter 3 retracted to the back-blowing bin 4 can be self-cleaned by the reverse flow of the airflow. At the same time, when the filter 3 needs to change position or enter the back-blowing bin 4 for cleaning, the slot body located at the corresponding position of the back-blowing bin 4 can be opened and closed by electric signal control to ensure the correct guidance of the exhaust gas flow path, prevent the exhaust gas from mistakenly entering the back-blowing bin 4 that is being cleaned or on standby, and ensure the efficient and orderly operation of the entire system. The clean airflow passing through the back-blowing bin 4 is finally discharged through the exhaust pipe 8, completing the entire exhaust gas treatment process.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An exhaust gas treatment and filtering device for a ship, characterized in that: The filter chamber (1) comprises a filter chamber (1), the bottom of which is in communication with an air inlet pipe (2), a plurality of groups of filter screens (3) are arranged in the filter chamber (1), a back-blowing chamber (4) is installed on one side of the filter chamber (1), each group of the filter screens (3) can be recovered into the back-blowing chamber (4) through a traction component (5), and a plurality of groups of filter screen deployment mechanisms (6) corresponding to the positions of the filter screens (3) are arranged on a side of the filter chamber (1) opposite to the back-blowing chamber (4); The filter chamber (1) is connected to the top of the backflush chamber (4) via multiple rows of reflux pipes (7) installed on the top; The bottom of the back-blowing bin (4) is connected to an exhaust pipe (8) for discharging the airflow passing through the back-blowing bin (4).

2. The exhaust gas treatment and filtering device for a ship according to claim 1, characterized in that: Two groups of filter screens (3) are provided in the filter bin (1); the filter screens (3) are made of foldable flexible material; each group of filter screens (3) is connected to a traction assembly (5) and a filter screen deployment mechanism (6) at a position corresponding to the filter screen.

3. The exhaust gas treatment and filtering device for a ship according to claim 2, characterized in that: The traction assembly (5) comprises an air rod (501) installed on a side of the back-blowing bin (4) away from the filter screen (3), the output end of the air rod (501) extends into the back-blowing bin (4), a U-shaped piece (502) is provided on the side of the filter screen (3) close to the back-blowing bin (4), a connecting rod (503) is vertically provided on the U-shaped piece (502) and penetrates the side of the U-shaped piece (502) and the filter screen (3), and the U-shaped piece (502) is connected to the output end of the air rod (501).

4. The exhaust gas treatment and filtering device for a ship according to claim 2, characterized in that: The filter screen unfolding mechanism (6) comprises two groups of reels (601) installed on the filter bin (1) in parallel and spaced apart from each other, the two groups of reels (601) being connected via a synchronous shaft (602), a motor (603) and a motor (603) mounting frame installed on the filter bin (1) being provided on the side of one of the reels (601), a fixing block (604) being provided on the side of the filter screen (3) close to the reel (601), and the fixing block (604) being connected to the reel (601) via a winding rope.

5. The exhaust gas treatment and filtering device for a ship according to claim 1, characterized in that: A ventilation pipe (9) is provided at the connection between the air inlet pipe (2) and the bottom of the filter bin (1), and a blower (10) is connected to the ventilation pipe (9). The blower (10) can be used to adjust the airflow velocity of the exhaust gas entering the filter bin (1).

6. The exhaust gas treatment and filtering device for a ship according to claim 5, characterized in that: A straight pipe (11) is provided at the bottom of the filter bin (1), and the ship exhaust gas in the air intake pipe (2) is sent into the straight pipe (11) by the blower (10). A plurality of air jets (12) are distributed on the straight pipe (11) and spray airflows at different angles.

7. The exhaust gas treatment and filtering device for a ship according to claim 1, characterized in that: A slot body that can be controlled to open and close by an electrical signal is provided on the side of the back-blowing bin (4) at a position corresponding to the filter screen (3).

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