ORC (organic Rankine cycle) organic medium power generation equipment driven by waste heat of ship exhaust gas

Abstract

The invention discloses ORC organic medium power generation equipment driven by waste heat of ship waste gas, and relates to the technical field of ship waste gas treatment. The filter screen cylinder periodically rotates through the intermittent rotation driving assembly, the high-pressure steam backwashing function is combined, fuel oil residues and dust accumulated on the surface and in pores of the filter screen can be actively removed, and the filter screen cylinder is cleaned through high-temperature and high-pressure steam, so that the filter screen cylinder is cleaned more efficiently. The high-temperature characteristic of steam can be utilized to soften greasy dirt and dust with relatively high viscosity, so that substances attached to the filter screen cylinder are stripped by utilizing the blowing action of the steam, and an efficient dust removal effect is realized; through the mechanical linkage design of the V-shaped driving groove and the sliding block, the effect that the sliding block pushes the driving sleeve to rotate is achieved through thrust generated by accumulation of high-temperature steam, it is ensured that a new surface of the filter screen cylinder is exposed in the waste gas inlet direction all the time in the rotating process, local blockage is avoided, and the whole backwashing system completely depends on waste gas waste heat driving; and the equipment operation and maintenance cost is obviously reduced.

Description

Technical Field

[0001] This invention relates to the field of marine exhaust gas treatment technology, specifically to an ORC organic dielectric power generation device driven by waste heat from marine exhaust gas. Background Technology

[0002] The core components of the ORC (Organic Rankine Cycle) include an evaporator, expander, condenser, and working fluid pump. Utilizing organic Rankine cycle technology, it absorbs heat from ship exhaust gases using a low-boiling-point organic working fluid, generating high-pressure steam to drive the turbine expander, which in turn drives the generator to produce electricity. This method recovers low-temperature waste heat from ship exhaust gases, converting it into electrical energy and reducing exhaust emissions and fuel consumption.

[0003] Since ship exhaust gas is mainly produced by the combustion of fuel oil in ship internal combustion engines, in addition to containing a large amount of heat, it also contains a large amount of soot particles and unburned fuel oil. If ship exhaust gas is directly input into ORC, the particulate matter in the exhaust gas will be deposited on the surface of the heat exchanger, forming a heat insulation layer, which will hinder heat transfer and reduce the heat absorption efficiency of the organic working fluid. Therefore, dust removal treatment is usually required before the exhaust gas is input into the ORC organic medium power generation equipment.

[0004] Currently, pulse jet dust collectors are commonly used for dust removal from ship exhaust gases. However, because the filter bags near the exhaust inlet play a major filtering role, the amount of residual dust at this location is relatively high, while the filter bag surface away from the exhaust inlet has less dust. The instantaneous high-pressure airflow generated by the pulse jet acts on the entire filter bag, causing some filter bags to be over-cleaned and wear faster, affecting overall performance. For example, in the switchable cartridge filter bag dust collector with publication number CN223184246U, the shock wave generated by compressed air exerts force on the entire filter bag, making it impossible to achieve targeted local cleaning of the filter bag. Long-term operation will accelerate the aging of filter bag fibers and shorten the life of the filter bag. Secondly, because ship exhaust gases also contain fuel residues, even if conventional dust removal equipment can filter impurities, the fuel residues are highly adhesive and easily combine with particulate matter to form sludge, clogging the filter screen pores. Conventional air purging and water washing methods are difficult to thoroughly clean the filter screen, thus failing to deliver sufficient gas to the ORC organic media power generation equipment, affecting power generation capacity.

[0005] Therefore, this invention proposes an ORC organic dielectric power generation device driven by waste heat from ship exhaust to solve the above problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an ORC (Organic Medium) power generation device driven by waste heat from ship exhaust gas. This solves the problem that current methods typically use pulse-jet dust collectors for ship exhaust gas treatment. However, the filter bags near the exhaust inlet play a primary filtering role, resulting in higher dust residue levels at this location compared to the filter bags further away from the inlet. The instantaneous high-pressure airflow generated by the pulse jets acts on the entire filter bag, causing some areas to be over-cleaned and wear up, affecting overall performance. Furthermore, ship exhaust gas also contains fuel residue. Even if conventional dust collection equipment can filter impurities, the fuel residue is highly adhesive and easily combines with particulate matter to form sludge, clogging the filter mesh. Conventional air purging and water washing methods are insufficient to thoroughly clean the filter mesh, thus preventing the supply of sufficient gas to the ORC power generation device and affecting power generation capacity.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an ORC (Organic Thermal Energy) power generation device driven by waste heat from ship exhaust gas, comprising an exhaust gas and dust collection box and an ORC waste heat recovery device, wherein an exhaust gas inlet and an exhaust outlet are respectively provided on both sides of the outer wall of the exhaust gas and dust collection box, and the exhaust outlet and the hot gas inlet of the ORC waste heat recovery device are connected by a hot gas conveying pipe, and further comprising:

[0008] The upper and lower partitions are fixedly installed on the upper and lower sides of the interior of the exhaust gas and dust collection box, respectively, and a temporary exhaust gas storage space is formed between the upper partition and the bottom of the inner cavity of the exhaust gas and dust collection box.

[0009] Multiple exhaust gas purification mechanisms are installed between the upper and lower partitions, with the top of each mechanism penetrating the upper partition and extending into the exhaust gas storage space. The exhaust gas purification mechanism uses high-pressure steam generated by the waste heat of the ship's exhaust gas to intermittently drive its own rotation, thereby completing the operation of its different positions facing the exhaust gas inlet. The high-pressure steam output during the rotation of the exhaust gas purification mechanism completes the backwashing operation on its outer wall to clean the fuel residue and dust that are difficult to clean from the surface of the exhaust gas purification mechanism. Finally, the purified exhaust gas is input into the ORC waste heat recovery equipment as the driving energy for power generation.

[0010] A water supply replenishment component is used to simultaneously replenish the water lost in multiple exhaust gas purification units.

[0011] Furthermore, the exhaust gas purification mechanism includes a filter cylinder, and an intermittent rotation drive assembly for driving the filter cylinder to rotate intermittently is provided inside the filter cylinder. The intermittent rotation drive assembly includes a bearing sleeve and a plurality of elongated through slots evenly opened on the outer wall of the bearing sleeve. A lifting column is slidably arranged inside the bearing sleeve, and a drive sleeve is rotatably sleeved on the outer wall of the lifting column. A plurality of V-shaped drive slots are evenly opened on the outer wall of the drive sleeve, and the plurality of V-shaped drive slots are connected end to end in sequence.

[0012] Furthermore, multiple drive rods are uniformly fixed on the outer wall of the lifting column. Each drive rod has a slider that is slidably disposed in a V-shaped drive groove on the side wall near the lifting column. Each drive rod is slidably disposed in a long strip-shaped through groove at a corresponding position. Multiple drive arms are fixedly disposed at the top end of the drive sleeve. One end of each drive arm is fixedly connected to the inner wall of the filter screen cylinder.

[0013] Furthermore, the V-shaped groove at the top of the inner cavity of the V-shaped drive groove and the V-shaped tip at the bottom of the inner cavity are staggered to ensure that when the slider moves upward along one side of the groove of the V-shaped drive groove, it can push the drive sleeve to rotate at a fixed angle, and after the slider moves downward, it can move downward through the groove on the other side of the V-shaped drive groove.

[0014] Furthermore, a support base is rotatably provided at the bottom of the filter screen cylinder, and the support base is fixedly provided at the top of the lower partition. A water supply pipe is fixedly provided at the center of the top of the support base. The bottom end of the water supply pipe passes through the support base and extends to the bottom of the lower partition. A heat exchange main pipe connected to the top of the water supply pipe is fixedly provided. Heat exchange branch pipes connected to the interior are evenly fixedly provided on the outer wall of the heat exchange main pipe. A high-pressure steam accumulator is also fixedly provided at the top of the heat exchange main pipe.

[0015] Furthermore, a piston is slidably and sealed inside the high-pressure steam accumulator. A push rod is fixedly installed at the center of the top of the piston. The top of the push rod slides through the high-pressure steam accumulator and connects to the bottom of the lifting column. A spring is also movably installed outside the push rod and between the piston and the high-pressure steam accumulator. High-pressure steam outlets are opened on both sides of the outer wall of the high-pressure steam accumulator. A high-pressure steam outlet pipe is fixedly installed inside the high-pressure steam outlet. A U-shaped steam outlet pipe is fixedly installed at one end of the high-pressure steam outlet pipe, and a U-shaped steam outlet pipe is installed at the position opposite to the U-shaped steam outlet pipe.

[0016] Furthermore, the U-shaped steam output pipe is sealed and slidably arranged close to the inner wall of the filter screen cylinder, and the U-shaped steam outlet pipe is sealed and slidably arranged close to the outer wall of the filter screen cylinder. The bottom end of the U-shaped steam outlet pipe is sealed and extends through the lower partition and downwards.

[0017] Furthermore, the water supply component includes multiple water supply branch pipes that are fixedly installed at the bottom of the lower partition. One end of each of the multiple water supply branch pipes is fixedly connected to a main water supply pipe, through which clean water is supplied to the multiple water supply branch pipes.

[0018] Furthermore, an ash hopper is fixedly installed at the bottom of the exhaust gas and dust collection box, and a slag discharge port is opened at the bottom end of the ash hopper. A sealing plate is detachably installed inside the slag discharge port.

[0019] This invention provides an ORC (Organic Hydrogen Fuel Cell) power generation device driven by waste heat from ship exhaust. Compared with the prior art, it has the following advantages:

[0020] 1. An ORC (Organic Medium) power generation device driven by waste heat from ship exhaust gas, wherein the filter cylinder is periodically rotated by an intermittent rotation drive component, combined with a high-pressure steam backwashing function, which can actively remove fuel residues and dust accumulated on the surface and pores of the filter screen. Moreover, by cleaning the filter screen cylinder with high-temperature and high-pressure steam, the high temperature of the steam can soften the sticky oil and dust, and then the steam purging action can peel off the substances attached to the filter screen cylinder, achieving a highly efficient dust removal effect. Secondly, the mechanical linkage design of the V-shaped drive groove and the slider uses the thrust generated by the accumulation of high-temperature steam to achieve the effect of the slider driving the drive sleeve to rotate, ensuring that the filter screen cylinder always has a fresh surface exposed to the exhaust gas inlet during the rotation process, avoiding local blockage. The entire backwashing system is entirely driven by waste heat from the exhaust gas, requiring no additional electrical energy input. The generation, storage, release and rotation of high-pressure steam and the filter screen form a closed loop control, significantly reducing the equipment operation and maintenance costs.

[0021] 2. An ORC (Organic Medium) power generation device driven by waste heat from ship exhaust gas, featuring a U-shaped steam output pipe tightly attached to the inner wall of the filter screen. When high-pressure steam penetrates the filter holes, it generates a bidirectional effect. The output high-temperature steam softens stubborn stains on the filter screen surface, and the U-shaped steam output pipe forms an air curtain that directs impurities into the U-shaped steam outlet pipe. Furthermore, the U-shaped steam output pipe and the corresponding U-shaped steam conduit used in conjunction can cover a portion of the filter screen cylinder, ensuring that the stains stripped by the high-temperature steam from the U-shaped steam output pipe completely enter the U-shaped steam conduit, preventing stain leakage. Finally, the stains are collected centrally through an ash hopper, reducing secondary pollution.

[0022] 3. An ORC (Organic Thermal Energy) power generation device driven by waste heat from ship exhaust gas, comprising a gradient heat exchange system consisting of a heat exchange main pipe and multiple heat exchange branch pipes. High-temperature exhaust gas first contacts the outer wall of the heat exchange branch pipes, heating the water to boiling to generate steam. This structure maximizes the heat exchange area, making the temperature gradient of the exhaust gas decrease more gently and improving the heat extraction efficiency. Secondly, the high-pressure steam accumulator achieves energy storage and release through a piston and spring mechanism. When the spring stores energy, the filter screen remains stationary for efficient filtration. When the steam is released, the high-pressure steam drives the filter screen to rotate and complete backwashing. At the same time, some steam is input into the ORC system for power generation. Moreover, the water in the heat exchange main pipe and heat exchange branch pipes is heated, which reduces the heat acquisition from the exhaust gas. It can perform backwashing of the filter screen for a long time without affecting the power generation of the ORC system.

[0023] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first overall three-dimensional structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the second overall three-dimensional structure of the present invention;

[0026] Figure 3 This is a first cross-sectional view of the exhaust gas and dust collection box of the present invention;

[0027] Figure 4 This is a second cross-sectional view of the exhaust gas and dust collection box of the present invention;

[0028] Figure 5 For the present invention Figure 4 A magnified structural diagram of part A in the diagram;

[0029] Figure 6 This is a schematic diagram of the exhaust gas purification mechanism and the upper and lower partitions of the present invention in an assembled state.

[0030] Figure 7 This is a cross-sectional structural diagram of the exhaust gas purification mechanism and the upper and lower partitions of the present invention in an assembled state;

[0031] Figure 8 For the present invention Figure 7 A magnified structural diagram of part B in the diagram;

[0032] Figure 9 For the present invention Figure 7 A magnified structural diagram of part C in the diagram;

[0033] Figure 10 This is a first cross-sectional view of the exhaust gas purification mechanism of the present invention;

[0034] Figure 11 This is a second cross-sectional view of the exhaust gas purification mechanism of the present invention;

[0035] Figure 12 For the present invention Figure 11 A magnified structural diagram of part D in the diagram;

[0036] Figure 13 This is a schematic diagram of the intermittent rotation drive component structure of the present invention.

[0037] In the diagram: 1. Waste gas and dust collection box; 2. ORC waste heat recovery equipment; 3. Waste gas inlet; 4. Exhaust outlet; 5. Hot gas conveying pipeline; 6. Upper partition; 7. Lower partition; 8. Waste gas purification mechanism; 81. Filter screen cylinder; 82. Intermittent rotation drive assembly; 821. Bearing sleeve; 822. Lifting column; 823. Drive sleeve; 824. V-shaped drive groove; 825. Drive rod; 826. Drive arm; 83. Bearing seat; 84. Water supply pipe; 85. Heat exchange main pipe; 86. Heat exchange branch pipe; 87. High-pressure steam accumulator; 88. Piston; 89. Push rod; 810. Spring; 811. High-pressure steam output pipe; 812. U-shaped steam output pipe; 813. U-shaped steam outlet pipe; 9. Water supply branch pipe; 10. Water supply main pipe. Detailed Implementation

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] This invention provides two technical solutions: an ORC organic dielectric power generation device driven by waste heat from ship exhaust gas, specifically including the following embodiments:

[0040] like Figure 1-Figure 5 The first embodiment is shown: an ORC (Organic Thermal Energy) power generation device driven by waste heat from ship exhaust gas, including an exhaust gas and dust collection box 1 and an ORC waste heat recovery device 2. Exhaust gas inlets 3 and exhaust ports 4 are respectively opened on both sides of the outer wall of the exhaust gas and dust collection box 1. The exhaust ports 4 and the hot gas inlet of the ORC waste heat recovery device 2 are connected by a hot gas conveying pipe 5. It also includes:

[0041] The upper partition 6 and the lower partition 7 are respectively fixedly installed on the upper and lower sides of the interior of the exhaust gas and dust collection box 1, and a temporary exhaust gas storage space is formed between the upper partition 6 and the bottom of the inner cavity of the exhaust gas and dust collection box 1.

[0042] Multiple exhaust gas purification mechanisms 8 are installed between the upper partition 6 and the lower partition 7, with the top of the exhaust gas purification mechanism 8 penetrating through the upper partition 6 and extending into the exhaust gas storage space. The exhaust gas purification mechanism 8 uses high-pressure steam generated by the waste heat of the ship's exhaust gas to intermittently drive its own rotation, so as to complete the operation of its different positions facing the exhaust gas inlet 3. The output high-pressure steam completes the backwashing operation on its outer wall during the rotation of the exhaust gas purification mechanism 8, so as to clean the fuel residue and dust that are difficult to clean on the surface of the exhaust gas purification mechanism 8, and finally inputs the purified exhaust gas into the ORC waste heat recovery equipment 2 as the driving energy for power generation.

[0043] A water supply replenishment component is used to simultaneously replenish the water lost in multiple exhaust gas purification units 8.

[0044] like Figures 6-13 The second embodiment is shown, which differs from the first embodiment in that: the exhaust gas purification mechanism 8 includes a filter cylinder 81, and an intermittent rotation drive assembly 82 for driving the filter cylinder 81 to rotate intermittently is provided on the upper part of the interior of the filter cylinder 81. The intermittent rotation drive assembly 82 includes a bearing sleeve 821 and a plurality of elongated through slots evenly opened on the outer wall of the bearing sleeve 821. A lifting column 822 is slidably arranged inside the bearing sleeve 821. A drive sleeve 823 is rotatably sleeved on the upper part of the outer wall of the lifting column 822. A plurality of V-shaped drive grooves 824 are evenly opened on the outer wall of the drive sleeve 823, and the plurality of V-shaped drive grooves 824 are connected end to end in sequence.

[0045] In this embodiment, a plurality of drive rods 825 are uniformly fixed on the outer wall of the lifting column 822. Each drive rod 825 has a slider fixedly fixed on the side wall near the lifting column 822 and slidably disposed in the V-shaped drive groove 824. Each drive rod 825 is slidably disposed in the elongated through groove at the corresponding position. A plurality of drive arms 826 are fixedly disposed at the top end of the drive sleeve 823. One end of each drive arm 826 is fixedly connected to the inner wall of the filter cylinder 81.

[0046] In this embodiment, the V-shaped groove at the top of the inner cavity of the V-shaped drive groove 824 and the V-shaped tip at the bottom of the inner cavity are staggered to ensure that when the slider moves upward along one side of the groove of the V-shaped drive groove 824, it can push the drive sleeve 823 to rotate at a fixed angle, and after the slider moves downward, it can move downward through the groove on the other side of the V-shaped drive groove 824. The bearing sleeve 821 is fixedly mounted on the top of the high-pressure steam accumulator 87 by bolts.

[0047] In this embodiment, a support base 83 is rotatably mounted at the bottom of the filter cylinder 81. The support base 83 is fixedly mounted on the top of the lower partition 7. A water supply pipe 84 is fixedly mounted at the center of the top of the support base 83. The bottom end of the water supply pipe 84 passes through the support base 83 and extends to the bottom of the lower partition 7. A heat exchange main pipe 85 is fixedly mounted at the top of the water supply pipe 84 and communicates with it. Heat exchange branch pipes 86, which communicate with the interior of the heat exchange main pipe 85, are evenly fixedly mounted on the outer wall of the heat exchange main pipe 85. A high-pressure steam accumulator 87 is also fixedly mounted at the top of the heat exchange main pipe 85. A liquid level sensor is installed inside the heat exchange main pipe 85 to monitor the water volume inside the heat exchange main pipe 85 in real time.

[0048] In this embodiment, a piston 88 is slidably and sealed inside the high-pressure steam accumulator 87. A push rod 89 is fixedly installed at the center of the top of the piston 88. The top end of the push rod 89 slides through the high-pressure steam accumulator 87 and connects to the bottom of the lifting column 822. A spring 810 is also movably installed outside the push rod 89 and between the piston 88 and the high-pressure steam accumulator 87. High-pressure steam outlets are provided on both sides of the outer wall of the high-pressure steam accumulator 87. A high-pressure steam outlet pipe 811 is fixedly installed inside the high-pressure steam outlet. A U-shaped steam outlet pipe 812 is fixedly installed at one end of the high-pressure steam outlet pipe 811, and a U-shaped steam outlet pipe 813 is installed at the position opposite to the U-shaped steam outlet pipe 812. The initial position of the piston 88 is below the high-pressure steam outlet. Steam can only be discharged through the high-pressure steam outlet after the piston 88 moves up a certain height. The U-shaped steam output pipe 812 and the U-shaped steam outlet pipe 813 can respectively cooperate with the inner wall and outer wall of the filter screen cylinder to form a relatively closed space, and only the bottom of the U-shaped steam outlet pipe 813 is provided with a waste discharge port to discharge the collected waste into the ash hopper.

[0049] In this embodiment, the U-shaped steam output pipe 812 is sealed and slidably disposed close to the inner wall of the filter cylinder 81, and the U-shaped steam outlet pipe 813 is sealed and slidably disposed close to the outer wall of the filter cylinder 81. The bottom end of the U-shaped steam outlet pipe 813 sealably penetrates the lower partition 7 and extends downward. The opposite sides of the U-shaped steam output pipe 812 and the U-shaped steam outlet pipe 813 have the same shape and area, that is, the high-pressure steam ejected from the U-shaped steam output pipe 812 can completely enter the U-shaped steam outlet pipe 813 after passing through the filter holes on the surface of the filter cylinder 81. The U-shaped steam output pipe 812 is fixedly disposed on the top of the support base 83 by a bracket.

[0050] In this embodiment, the water supply component includes multiple water supply branch pipes 9 that are fixedly installed at the bottom of the lower partition 7. One end of each water supply branch pipe 9 is fixedly connected to a main water supply pipe 10, through which clean water is supplied to the multiple water supply branch pipes 9.

[0051] In this embodiment, an ash hopper is fixedly installed at the bottom of the exhaust gas and dust collection box 1. The bottom end of the ash hopper has a slag discharge port, and a sealing plate is detachably installed inside the slag discharge port.

[0052] In use, the high-temperature exhaust gas from the ship's engine combustion is introduced into the space between the upper partition 6 and the lower partition 7 through the exhaust gas inlet 3. When the exhaust gas passes through the filter holes on the surface of the filter cylinder 81, the dust and unburned fuel residue in the exhaust gas are filtered onto the outer wall of the filter cylinder 81.

[0053] After the high-temperature clean exhaust gas enters the filter cylinder 81, it comes into contact with multiple heat exchange branch pipes 86. Therefore, when the high-temperature exhaust gas is discharged through the top of the filter cylinder 81, part of the heat in the exhaust gas heats the clean water inside the heat exchange branch pipes 86 through the outer wall of the heat exchange branch pipes 86. Due to the interconnected design of the heat exchange main pipe 85 and multiple heat exchange branch pipes 86, the clean water inside the heat exchange main pipe 85 and heat exchange branch pipes 86 is gradually heated to boiling. The high-temperature steam moves upward by rising and gradually accumulates in the space of the high-pressure steam accumulator 87 located below the piston 88.

[0054] As the amount of steam in the high-pressure steam accumulator 87 increases, its internal pressure gradually rises. The high-pressure steam pushes the piston 88 to overcome the elastic force of the spring 810 and move it upward until the side wall of the piston 88 moves upward beyond the position of the high-pressure steam outlet. The accumulated high-pressure steam enters the high-pressure steam outlet pipe 811 through the high-pressure steam outlet in a short time, and is quickly sprayed onto the inner wall of the filter screen cylinder 81 through the U-shaped steam outlet pipe 812. The impurities attached to the outer wall of the filter screen cylinder 81 and blocked in the filter holes are instantly softened by the high-pressure steam and pushed towards the U-shaped steam outlet pipe 813. The impurities blown into the U-shaped steam outlet pipe 813 gradually move downward under the action of gravity and enter the ash hopper through the bottom end of the U-shaped steam outlet pipe 813.

[0055] At the same time, when the piston 88 moves upward, the push rod 89 is pushed upward synchronously. When the push rod 89 pushes the lifting column 822, multiple drive rods 825 fixed on the outer wall of the lifting column 822 move upward synchronously. The slider moves upward to the highest point along the inclined groove on one side of the V-shaped drive groove 824 at the corresponding position, and then moves downward along the inclined groove on the other side of the V-shaped drive groove 824. The slider pushes the inclined groove to drive the drive sleeve 823 to rotate in a direction. Since the drive rod 825 only moves in the vertical direction, the drive sleeve 823 is subjected to the combined action of the V-shaped drive groove 824 and the slider, so that the drive sleeve 823 rotates at a fixed angle. After the steam accumulated in the high-pressure steam storage cylinder 87 is released, the elastic force of the spring 810 is greater than the steam pressure in the high-pressure steam storage cylinder 87, so the spring 810 pushes the piston 88 back to the original position. This repetition can realize that the filter screen cylinder 81 can be swept by high-pressure steam during the cyclic rotation of the filter screen cylinder 81.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0057] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An ORC (Organic Thermal Energy) generator driven by waste heat from ship exhaust gas, comprising an exhaust gas dust collection box (1) and an ORC waste heat recovery device (2), wherein an exhaust gas inlet (3) and an exhaust outlet (4) are respectively provided on both sides of the outer wall of the exhaust gas dust collection box (1), and the exhaust outlet (4) and the hot gas inlet of the ORC waste heat recovery device (2) are connected by a hot gas conveying pipe (5), characterized in that, Also includes: The upper partition (6) and the lower partition (7) are respectively fixedly installed on the upper and lower sides of the interior of the exhaust gas and dust collection box (1). An exhaust gas temporary storage space is formed between the upper partition (6) and the bottom of the inner cavity of the exhaust gas and dust collection box (1). Multiple exhaust gas purification mechanisms (8) are set between the upper partition (6) and the lower partition (7), and the top of the exhaust gas purification mechanism (8) passes through the upper partition (6) and extends into the exhaust gas storage space. The exhaust gas purification mechanism (8) uses the high-pressure steam generated by the waste heat of the ship's exhaust gas to drive itself to rotate intermittently, so as to complete the operation of its different positions facing the exhaust gas inlet (3). The output high-pressure steam completes the backwashing operation of its outer wall during the rotation of the exhaust gas purification mechanism (8) to clean the fuel residue and dust that are difficult to clean on the surface of the exhaust gas purification mechanism (8), and finally inputs the purified exhaust gas into the ORC waste heat recovery equipment (2) as the driving energy for power generation. A water supply component is used to simultaneously replenish the lost water in multiple exhaust gas purification units (8).

2. The ORC organic dielectric power generation device driven by waste heat from ship exhaust gas according to claim 1, characterized in that: The exhaust gas purification mechanism (8) includes a filter cylinder (81). An intermittent rotation drive assembly (82) for driving the filter cylinder (81) to rotate intermittently is provided inside the filter cylinder (81). The intermittent rotation drive assembly (82) includes a support sleeve (821) and a plurality of elongated through slots evenly opened on the outer wall of the support sleeve (821). A lifting column (822) is slidably arranged inside the support sleeve (821). A drive sleeve (823) is rotatably sleeved on the outer wall of the lifting column (822). A plurality of V-shaped drive grooves (824) are evenly opened on the outer wall of the drive sleeve (823). The plurality of V-shaped drive grooves (824) are connected end to end in sequence.

3. The ORC organic dielectric power generation device driven by waste heat from ship exhaust gas according to claim 2, characterized in that: Multiple drive rods (825) are uniformly fixed on the outer wall of the lifting column (822). Each drive rod (825) has a slider that is slidably disposed in a V-shaped drive groove (824) on the side wall near the lifting column (822). Each drive rod (825) is slidably disposed in a long strip-shaped through groove at the corresponding position. Multiple drive arms (826) are fixedly disposed at the top end of the drive sleeve (823). One end of each drive arm (826) is fixedly connected to the inner wall of the filter screen cylinder (81).

4. The ORC organic dielectric power generation device driven by waste heat from ship exhaust gas according to claim 2, characterized in that: The V-shaped groove at the top of the inner cavity of the V-shaped drive groove (824) and the V-shaped tip at the bottom of the inner cavity are staggered to ensure that when the slider moves up along one side of the groove of the V-shaped drive groove (824), it can push the drive sleeve (823) to rotate at a fixed angle, and after the slider moves down, it can move down through the groove on the other side of the V-shaped drive groove (824).

5. The ORC organic dielectric power generation device driven by waste heat from ship exhaust gas according to claim 2, characterized in that: The bottom of the filter cylinder (81) is rotatably provided with a support seat (83), the support seat (83) is fixedly provided on the top of the lower partition (7), a water supply pipe (84) is fixedly provided at the center of the top of the support seat (83), the bottom end of the water supply pipe (84) passes through the support seat (83) and extends to the bottom of the lower partition (7), the top end of the water supply pipe (84) is fixedly provided with a heat exchange main pipe (85) connected to it, heat exchange branch pipes (86) connected to its interior are evenly fixedly provided on the outer wall of the heat exchange main pipe (85), and a high-pressure steam accumulator (87) is also fixedly provided at the top end of the heat exchange main pipe (85).

6. The ORC organic dielectric power generation device driven by waste heat from ship exhaust gas according to claim 5, characterized in that: The high-pressure steam accumulator (87) is internally sealed and slidably equipped with a piston (88). A top rod (89) is fixedly installed at the top center of the piston (88). The top end of the top rod (89) slides through the high-pressure steam accumulator (87) and is connected to the bottom of the lifting column (822). A spring (810) is also movably installed outside the top rod (89) and between the piston (88) and the high-pressure steam accumulator (87). High-pressure steam outlets are opened on both sides of the outer wall of the high-pressure steam accumulator (87). A high-pressure steam outlet pipe (811) is fixedly installed inside the high-pressure steam outlet. A U-shaped steam outlet pipe (812) is fixedly installed at one end of the high-pressure steam outlet pipe (811). A U-shaped steam outlet pipe (813) is installed at the position opposite to the U-shaped steam outlet pipe (812).

7. The ORC organic dielectric power generation device driven by waste heat from ship exhaust gas according to claim 6, characterized in that: The U-shaped steam output pipe (812) is sealed and slidably arranged close to the inner wall of the filter screen cylinder (81), and the U-shaped steam outlet pipe (813) is sealed and slidably arranged close to the outer wall of the filter screen cylinder (81). The bottom end of the U-shaped steam outlet pipe (813) is sealed and passes through the lower partition (7) and extends downward.

8. The ORC organic dielectric power generation device driven by waste heat from ship exhaust gas according to claim 1, characterized in that: The water supply component includes multiple water supply branch pipes (9) that are fixedly installed at the bottom of the lower partition (7). One end of each of the multiple water supply branch pipes (9) is fixedly connected to a main water supply pipe (10), through which clean water is supplied to the multiple water supply branch pipes (9).

9. The ORC organic dielectric power generation device driven by waste heat from ship exhaust gas according to claim 1, characterized in that: The bottom of the waste gas and dust collection box (1) is fixedly equipped with an ash hopper, and the bottom end of the ash hopper is provided with a slag discharge port, and a sealing plate is detachably installed inside the slag discharge port.

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