A rotating shroud soot filter for a ship exhaust stack

Abstract

The application provides a rotary covering soot filtering device for a ship exhaust pipe, which comprises a filtering assembly and a turnover driving assembly, the filtering assembly is rotationally connected with the lower outer wall of the exhaust pipe outlet, the turnover driving assembly is arranged outside the chimney and connected with the filtering assembly; a filtering assembly base is arranged at the top of the chimney and used for supporting the filtering assembly. The rotary covering soot filtering device for the ship exhaust pipe can filter out soot particles in the exhaust gas by adding a corresponding filtering screen device at the end of the exhaust pipe, clean the exhaust gas discharged into the atmosphere and eliminate the phenomenon that soot is scattered in the air.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, and specifically relates to a rotary cover-type soot filter for ship exhaust pipes. Background Technology

[0002] Currently, ocean-going vessels primarily burn heavy fuel oil, which is favored by ship owners due to its low price, high calorific value, and ease of use. However, due to the quality of the fuel, heavy fuel oil often produces large particles of soot in the exhaust gas. This is especially problematic when ships are anchored or docked, as the soot from the diesel engines can be carried by the wind to the docks, ports, and adjacent vessels. This can lead to complaints from ports and other shipping companies, and in severe cases, financial claims. Meanwhile, some environmentally friendly vessels also need to reduce their emissions of soot particles. Therefore, designing a soot filtration device for ship exhaust pipes is crucial. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a rotary cover-type soot filter for ship exhaust pipes. By installing a corresponding filter screen at the end of the exhaust pipe, soot particles in the exhaust gas are filtered out, cleaning the exhaust gas emitted into the atmosphere and eliminating the pollution caused by soot drifting in the wind.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rotary cover-type soot filter for a ship's exhaust pipe includes a filter assembly and a tilting drive assembly. The filter assembly is rotatably connected to the lower outer wall of the exhaust pipe outlet. The tilting drive assembly is located outside the chimney and connected to the filter assembly. A filter assembly base is provided at the top of the chimney to support the filter assembly.

[0006] Furthermore, the tilting drive assembly includes multiple pulley sets, a first steel wire rope, a second steel wire rope, and a lifting wheel. The lifting wheel is fixed to the lower part of the chimney on the outer wall opposite the exhaust pipe. The multiple pulley sets are arranged above the lifting wheel, spaced apart from bottom to top along the outer wall of the chimney. Two pulleys in each pulley set are symmetrically arranged relative to the central axis of the exhaust pipe. The pulley set at the highest point is located on the top outer wall of the exhaust pipe. One end of the first steel wire rope is connected to the lifting wheel, and the other end is connected to the middle of the second steel wire rope through a shackle connector. Both ends of the second steel wire rope pass through a row of pulleys and are connected to the filter assembly. A support rod is connected between the two strands of the second steel wire rope located between the shackle connector and the lowest pulley set.

[0007] Furthermore, the filter assembly is composed of three layers of filter screens arranged within the filter screen frame.

[0008] Furthermore, hinge brackets are provided opposite to each other on the lower outer wall of the exhaust pipe outlet and the lower outer wall of the filter assembly, and the filter assembly is hinged to the outer wall of the exhaust pipe through the hinge brackets.

[0009] Furthermore, the filter assembly base is a support frame, and the top surface of the support frame is an inclined surface that slopes upwards away from the exhaust pipe.

[0010] The rotary cover-type soot filter for ship exhaust pipes described in this invention allows for filtration of exhaust gas during normal navigation, when no filtration is required and the soot filter is placed on the filter frame base. When filtration is needed, rotating the manual lifting wheel via a wire rope rotates the filter device upwards to cover the exhaust pipe for filtration. The filter device consists of three layers of stainless steel mesh from the inside out, with mesh precision of 50 mesh, 100 mesh, and 200 mesh respectively. Exhaust gas can pass through the filter, but soot particles remain inside. The filter is multi-layered, detachable, and washable with water, ensuring multiple reuses. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the rotary cover-type soot filter device for ship exhaust pipes described in this invention when the ship is in motion.

[0012] Figure 2 This is the book Figure 1 View from direction A.

[0013] Figure 3 This is a schematic diagram of the structure of the rotary cover-type soot filter device for ship exhaust pipes described in this invention when filtering flue gas.

[0014] Figure 4 This is a schematic diagram of the structure of the filter assembly described in this invention.

[0015] Among them, 1-exhaust pipe, 2-filter frame, 3-hinger bracket, 4-first steel wire rope, 5-pulley block, 6-lifting wheel, 7-filter assembly base, 8-shackle connector, 9-first layer filter, 10-second layer filter, 11-third layer filter, 12-support rod, 13-second steel wire rope, 14-chimney. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1As shown, a rotary cover-type soot filter for a ship's exhaust pipe includes a filter assembly and a tilting drive assembly. The filter assembly is rotatably connected to the lower outer wall of the exhaust pipe 1 outlet. The tilting drive assembly is located outside the chimney and connected to the filter assembly. A filter assembly base 7 is provided at the top of the chimney 14 to support the filter assembly.

[0018] Furthermore, the flipping drive assembly includes multiple sets of pulley groups 5, a first steel wire rope 4, a second steel wire rope 13, and a lifting wheel 6. The lifting wheel 6 is fixed to the lower part of the chimney 14 on the outer wall opposite to the exhaust pipe 1. The multiple sets of pulley groups 5 are arranged above the lifting wheel 6, spaced apart from bottom to top along the outer wall of the chimney 14, and two pulleys in each set of pulley groups 5 are symmetrically arranged relative to the central axis of the exhaust pipe 1. The pulley group 5 at the highest point is located on the top outer wall of the exhaust pipe 1. One end of the first steel wire rope 4 is connected to the lifting wheel 6, and the other end is connected to the middle of the second steel wire rope 13 through a shackle connector 8. The two ends of the second steel wire rope 13 pass through a row of pulleys and are connected to the filter assembly. A support rod 12 is connected between the two strands of the second steel wire rope 13 located between the shackle connector 8 and the lowest pulley group 5.

[0019] Furthermore, the filter assembly is composed of three layers of filter screens arranged within the filter screen frame 2.

[0020] Furthermore, a hinge bracket 3 is provided opposite to the lower outer wall of the exhaust pipe 1 outlet and the lower outer wall of the filter assembly, and the filter assembly is hinged to the outer wall of the exhaust pipe 1 through the hinge bracket 3.

[0021] Furthermore, the filter assembly base 7 is a support frame, and the top surface of the support frame is an inclined surface that slopes upwards away from the exhaust pipe 1.

[0022] Driven by the first wire rope 4 and the second wire rope 13, the filter can rotate upward and cover the exhaust pipe 1. Pulling the wire rope can make the filter screen rotate to cover the exhaust pipe outlet and filter the flue gas. When the wire rope is released, the filter assembly rotates and is placed on the filter assembly base 7 under the action of gravity. At this time, the filter assembly does not work. The lifting wheel 6 is fixed on the outer wall of the chimney in a place that is convenient for people to operate. By rotating the lifting wheel, the wire rope is moved under the guidance of the pulley block 5. With the cooperation of the support rod 12 and the shackle connector 8, the filter screen frame 2 is rotated upward or tilted downward as a whole. When the lifting wheel 6 rotates forward, it pulls the wire rope 4 to rotate upward and the filter screen frame 2 to cover the exhaust pipe 1 for filtering. When the lifting wheel 6 rotates backward, it opens the wire rope 4 and rotates downward so that the filter screen frame 2 is separated from the exhaust pipe 1 and does not work.

[0023] like Figure 3The support rod 12 is used to support and balance the two second steel wire ropes 13. The width of the support rod 12 is suitable for the spacing between the two sets of steel wire ropes. The two sets of second steel wire ropes 13 are connected to the shackle connector 8 with the cooperation of the support rod 12, and then further downward to connect to the lifting wheel 6 through the second steel wire ropes 13. The support rod 12 effectively balances the force and force conversion of the two second steel wire ropes 13, so that the filter frame 2 can be evenly and smoothly operated upward or downward with balanced force on both sides.

[0024] like Figure 3 As shown, the filter assembly is composed of a filter frame 2, a first filter 9, a second filter 10, and a third filter 11. The first filter 9, which is near the exhaust pipe outlet, is 50 mesh, the second filter 10 is 100 mesh, and the outermost third filter 11 is 200 mesh. The first filter 9, the second filter 10, and the third filter 11 are overlapped and fixed to the filter frame 2 by bolts or the like to form an integrated filter device. When the filter device is working, it can filter out most of the soot particles in the flue gas, but the flue gas can be discharged through the filter, thus achieving the purpose of cleaning the flue gas.

[0025] Those skilled in the art should understand that the above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotary cover-type soot filter for ship exhaust pipes, characterized in that, The system includes a filter assembly and a tilting drive assembly. The filter assembly is rotatably connected to the lower outer wall of the exhaust pipe outlet. The tilting drive assembly is located outside the chimney and connected to the filter assembly. A filter assembly base is provided at the top of the chimney to support the filter assembly. The tilting drive assembly includes multiple pulley sets, a first steel wire rope, a second steel wire rope, and a lifting wheel. The lifting wheel is fixed to the lower outer wall of the chimney opposite the exhaust pipe. Multiple pulley sets are located above the lifting wheel and are spaced apart from bottom to top along the outer wall of the chimney. Two pulleys in each pulley set are symmetrically arranged relative to the central axis of the exhaust pipe. The highest pulley set is located on the top outer wall of the exhaust pipe. The first steel wire rope... One end of the wire rope is connected to the lifting wheel, and the other end is connected to the middle of the second wire rope through a shackle connector. Both ends of the second wire rope pass through a set of pulleys and are then connected to the filter assembly. A support rod is connected between the two strands of the second wire rope located between the shackle connector and the lowest pulley group. The filter assembly is composed of three layers of filter screens with a filter screen frame inside the filter screen frame. A hinge bracket is provided opposite to the lower outer wall of the exhaust pipe outlet and the lower outer wall of the filter assembly. The filter assembly is hinged to the outer wall of the exhaust pipe through the hinge bracket. The base of the filter assembly is a support frame, and the top surface of the support frame is an inclined surface that slopes from bottom to top away from the exhaust pipe.

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