Weight reduction support of SCR mixing assembly

Abstract

The utility model relates to the technical field of environment-friendly ships, and discloses a weight reduction support of an SCR (Selective Catalytic Reduction) mixing assembly, which comprises a mixing pipe and an arranged support base plate, and a support web plate, a support rib plate and a support bottom plate are respectively additionally arranged at the bottom of the support base plate. According to the weight reduction support of the SCR mixing assembly, a small-drift-diameter mixing pipe can be used through the support base plate, under the condition that the strength is sufficiently met, the design of the support web plate is optimized, the support web plate can be changed into a right-angle web plate, in order to meet the strength requirement, an oblique-angle web plate can be adopted, and when the weight of the borne mixing assembly is large, the support is not damaged. When the bevel angle type web is selected, a support rib plate is added and symmetrically arranged, support base plates of three types and sizes can be designed to be changed along with different outer diameters of the mixing pipe, two sets of screws and nuts are fixed, the plate thicknesses of all supporting plates of the support are correspondingly reduced, and the plate widths of the supporting plates and the bottom plate are reduced. And the weight can be reduced to a certain extent, so that the use amount of production materials can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of environmentally friendly ships, in particular to a weight-reducing bracket of an SCR mixing component. Background Art

[0002] Environmentally friendly ships are those that, during their design, construction, and operation, implement various measures to reduce negative environmental impacts and comply with relevant environmental regulations. These ships require the use of SCR mixing components, a crucial component of the SCR system. These components thoroughly mix the urea solution with the ship's exhaust gases, allowing for a subsequent reduction reaction on the SCR catalyst surface, converting NOx into harmless nitrogen and water vapor. This reduction in NOx emissions helps mitigate the ship's negative environmental impact and improves its energy efficiency to a certain extent.

[0003] A typical SCR mixing assembly typically consists of connecting pipe sections, a housing, a mixing channel, an air inlet, an exhaust port, a urea nozzle, and a spoiler. Exhaust gas exits the turbine and enters the exhaust mixing pipe, where a urea metering injection device sprays a urea-water solution. Urea undergoes hydrolysis and thermal decomposition at high temperatures to produce ammonia. Subsequently, on the surface of the SCR catalyst, NH3 reacts with NOx in the exhaust gas to produce harmless N2 and H2O.

[0004] Traditional SCR mixing assemblies consist of a mixing tube and a bracket, with the bracket bearing the entire weight of the mixing assembly. Due to the varying diameters of mixing assemblies, larger mixing tubes are heavier. Therefore, the mixing tube brackets designed earlier had thicker plates and wider bases. Each bracket was secured with four sets of bolts and nuts, resulting in a heavier overall weight for the entire mixing assembly. Therefore, a weight-reducing bracket for an SCR mixing assembly is proposed. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the present invention provides a weight-reducing bracket for an SCR hybrid assembly to solve the technical problem that the bracket has a large strength redundancy, which increases the amount of production materials used and the cost of use.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a weight-reducing bracket for an SCR hybrid assembly, comprising:

[0009] A mixing tube and a support plate provided at the bottom of the mixing tube, wherein the bottom of the support plate is provided with a support web and a support rib;

[0010] The bracket bottom plate is arranged directly below the bottom of the bracket pad, and the top of the bracket bottom plate is connected to the bracket web and the bracket rib;

[0011] The mixing assembly pad is set at the bottom of the bracket base plate, and a screw is connected between the bracket base plate and the mixing assembly pad. A nut, an upper round pad, a spring washer, a lower round pad, and a friction pad are respectively added to the surface of the screw. The bracket pad can be used for small-diameter mixing tubes. Under the condition of sufficient strength, the bracket web design is optimized and can be changed to a right-angled web. To meet the strength requirements, an angled web can be used. When the weight of the mixed assembly is large, a bracket rib can be added to the angled web and arranged symmetrically. Three types of bracket pads can be designed to change with the outer diameter of the mixing tube. Two sets of screws and nuts are fixed, and the thickness of all support plates of the bracket is correspondingly reduced, and the width of the support plate and the bottom plate is reduced. It can not only reduce weight to a certain extent, thereby reducing the amount of production materials used, achieving the result of reducing costs and increasing efficiency, but also provide new design ideas for meeting higher standards of shipyard requirements. It can also match mixing tubes of different diameters. For mixing tubes of the same diameter but different lengths, the position and number of brackets can also be freely selected to adapt to the overall design, thereby reducing the design workload. At the same time, the friction gasket groove design is eliminated from the bracket bottom plate, reducing the processing steps of the bracket, and simplifying the process in the subsequent installation of fasteners, making installation easier.

[0012] Preferably, threaded holes are evenly formed on the tops of the bracket backing plate and the bracket web, and connecting bolts are threadedly connected to the inner cavities of the threaded holes. The bracket backing plate and the bracket web are connected via the threaded holes and the connecting bolts. This not only ensures a stable connection, but also facilitates replacement of the bracket backing plate according to usage.

[0013] Preferably, the top of the bracket bottom plate is evenly provided with connecting grooves, and a guide rod is added to the center of the inner cavity of the connecting groove so that the guide rod enters the interior of the connecting groove for use.

[0014] Preferably, the guide rod is connected to the center of the bottom of the bracket web and bracket rib, and guide holes are evenly distributed around the surface of the bracket base, and the positions and shapes of the guide holes correspond to those of the connecting groove. When the bracket web and bracket rib are aligned with the top of the bracket base, the guide rod enters the interior of the connecting groove, and a tool, such as a squeeze rod, can be used to move the guide rod along the guide hole to the end of the guide rod.

[0015] Preferably, a clamping column is slidably connected to the end of the guide rod, and a compression spring is sleeved on the outer surface of the guide rod, and the compression spring and the clamping column are tightly fitted. The compression spring drives the clamping column into the interior of the connecting groove on the guide rod, ensuring the stability of the connection between the bracket web and bracket ribs and the bracket base plate. The clamping column can be pushed back to the end of the guide rod by moving the compression rod along the guide hole, making it easy to disassemble and replace the bracket web and bracket ribs with the bracket base plate according to usage.

[0016] Preferably, the nut is located on the upper surface of the screw, the upper circular pad is located below the nut, the spring washer is located below the upper circular pad, the lower circular pad is located below the spring washer, and the friction washer is located below the lower circular pad. The friction washer can increase the contact area with the bracket base plate, making the connection more stable.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a weight-reducing bracket for an SCR hybrid assembly, which has the following beneficial effects:

[0019] This weight-reducing bracket for the SCR mixing assembly, through its bracket pad, can be used with small-diameter mixing tubes. When sufficient strength is required, the bracket web design can be optimized, with a rectangular web or, to meet strength requirements, an angled web. When the weight of the mixing assembly is heavy, an additional bracket rib can be added to the angled web and arranged symmetrically. Three bracket pad sizes are available, varying with the outer diameter of the mixing tube. Two sets of screws and nuts secure the bracket, reducing the thickness of all support plates and the width of the brace and base plates. This design not only reduces weight and material usage, achieving cost savings and increased efficiency, but also offers new design options for meeting higher shipyard standards. It can also accommodate mixing tubes of varying diameters. For mixing tubes of the same diameter but varying lengths, the bracket position and number can be freely selected to suit the overall design, reducing design workload. The friction gasket grooves are eliminated from the bracket base, reducing the number of machining steps and streamlining the subsequent fastener installation process, making installation easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the support plate and its connection structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the screw and its connection structure of the utility model;

[0023] Figure 4This is a schematic diagram of the structure in which the support pad and the support web are separated in the utility model;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the top portion of the bottom plate of the bracket of the utility model.

[0025] In the figure: 1. mixing tube; 2. bracket pad; 3. bracket web; 4. bracket rib; 5. bracket bottom plate; 6. mixing assembly pad; 7. screw; 8. nut; 9. upper round pad; 10. spring pad; 11. lower round pad; 12. friction pad; 13. threaded hole; 14. connecting bolt; 15. connecting groove; 16. guide hole; 17. guide rod; 18. clamping column; 19. extrusion spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0027] The utility model provides a technical solution, a weight reduction bracket of an SCR hybrid component, including: Figure 1 , a mixing tube 1, and a support plate 2 provided at the bottom of the mixing tube 1, and a support web 3 and a support rib 4 are respectively provided at the bottom of the support plate 2;

[0028] See also Figure 2 , the bracket bottom plate 5 is arranged just below the bottom of the bracket pad 2, and the top of the bracket bottom plate 5 is connected to the bracket web 3 and the bracket rib 4;

[0029] See also Figure 3The mixing assembly pad 6 is arranged at the bottom of the bracket base plate 5, and a screw 7 is connected between the bracket base plate 5 and the mixing assembly pad 6, and a nut 8, an upper round pad 9, a spring washer 10, a lower round pad 11 and a friction pad 12 are respectively provided on the surface of the screw 7. The bracket pad 2 can be used for mixing tubes 1 with small diameters. Under the condition that the strength is sufficient, the design of the bracket web 3 is optimized and can be changed to a right-angled web. To meet the strength requirements, an angled web can be used. When the weight of the mixed assembly carried is large, a bracket rib 4 can be added when the angled web is selected and arranged symmetrically. Three types of bracket pads 2 can be designed to change with the outer diameter of the mixing tube 1. Two sets of screws 7 and nuts 8 are fixed, and the thickness of all support plates of the bracket is correspondingly reduced, and the width of the support plate and the bottom plate is reduced. It can not only reduce weight to a certain extent, thereby reducing the amount of production materials used, achieving the result of reducing costs and increasing efficiency, but also provide new design ideas for meeting higher standards of shipyard requirements. It can also match mixing tubes 1 of different diameters. For mixing tubes 1 of the same diameter but different lengths, the position and number of the brackets can also be freely selected to adapt to the overall design, thereby reducing the design workload. At the same time, the groove design of the friction gasket 12 is cancelled on the bracket base plate 5, reducing the processing steps of the bracket, and simplifying the process in the subsequent installation of fasteners, making it easier to install.

[0030] See also Figure 4 Threaded holes 13 are evenly distributed on the tops of the bracket backing plate 2 and the bracket web 3. Connecting bolts 14 are threadedly connected to the inner cavities of the threaded holes 13. The bracket backing plate 2 and the bracket web 3 are connected via the threaded holes 13 and the connecting bolts 14. This not only ensures a stable connection, but also facilitates replacement of the bracket backing plate 2 according to usage.

[0031] See also Figure 5, the top of the bracket base plate 5 is evenly provided with connecting grooves 15, and a guide rod 17 is added to the center of the inner cavity of the connecting groove 15. The guide rod 17 is allowed to enter the interior of the connecting groove 15 for use. The guide rod 17 is connected to the bottom center position of the bracket web 3 and the bracket rib 4, and guide holes 16 are evenly provided around the surface of the bracket base plate 5, and the position and shape of the guide holes 16 correspond to those of the connecting groove 15. When the bracket web 3 and the bracket rib 4 are fitted with the top of the bracket base plate 5, the guide rod 17 is allowed to enter the interior of the connecting groove 15, and tools such as extrusion rods can be used to move along the guide holes 16 to the end of the guide rod 17. The end of the guide rod 17 is slidably connected to a clamping column 18, and the outer surface of the guide rod 17 is provided with an extrusion spring 19, which fits tightly with the extrusion spring 19. The extrusion spring 19 drives the clamping column 18 on the guide rod 17 to enter the interior of the connecting groove 15, ensuring the stability of the connection between the bracket web 3 and the bracket rib 4 and the bracket base plate 5. The clamping column 18 can be pushed back to the end of the guide rod 17 by moving the extrusion rod along the guide hole 16, so that the bracket web 3 and the bracket rib 4 and the bracket base plate 5 can be easily disassembled and replaced according to the usage.

[0032] See also Figure 3 The nut 8 is located on the upper surface of the screw rod 7, the upper circular pad 9 is located below the nut 8, the spring washer 10 is located below the upper circular pad 9, the lower circular pad 11 is located below the spring washer 10, and the friction pad 12 is located below the lower circular pad 11. The friction pad 12 can increase the contact area with the bracket base plate 5, making the connection more stable.

[0033] This solution: The support pad 2 can be used for small-diameter mixing tubes 1. Under sufficient strength requirements, the design of the support web 3 can be optimized, and can be changed to a right-angled web. To meet strength requirements, an angled web can be used. When the weight of the mixing assembly is heavy, an angled web can be selected, and a support rib 4 can be added and arranged symmetrically. Three types of support pads 2 can be designed to vary with the outer diameter of the mixing tube 1. Two sets of screws 7 and nuts 8 are used for fixing. The thickness of all support plates of the support is correspondingly reduced, and the width of the support plate and bottom plate is reduced. The support pad 2 and the support web 3 are connected via threaded holes 13 and connecting bolts 14. When the bracket web 3 and the bracket rib 4 are fitted with the top of the bracket base plate 5, the guide rod 17 enters the interior of the connecting groove 15, and the extrusion spring 19 drives the clamping column 18 on the guide rod 17 to enter the interior of the connecting groove 15, ensuring the stability of the connection between the bracket web 3 and the bracket rib 4 and the bracket base plate 5. The clamping column 18 can be pushed back to the end of the guide rod 17 by moving the extrusion rod along the guide hole 16, so that the bracket web 3 and the bracket rib 4 can be separated from the bracket base plate 5.

[0034] 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.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weight-reducing bracket for an SCR hybrid assembly, characterized in that: include: A mixing tube (1), and a support plate (2) arranged at the bottom of the mixing tube (1), wherein the bottom of the support plate (2) is respectively provided with a support web (3) and a support rib plate (4); The bracket bottom plate (5) is arranged directly below the bottom of the bracket pad (2), and the top of the bracket bottom plate (5) is connected to the bracket web (3) and the bracket rib plate (4); The mixing assembly pad (6) is arranged at the bottom of the bracket bottom plate (5), and a screw rod (7) is connected between the bracket bottom plate (5) and the mixing assembly pad (6). A nut (8), an upper circular pad (9), a spring pad (10), a lower circular pad (11) and a friction pad (12) are respectively provided on the surface of the screw rod (7).

2. The weight-reducing bracket for an SCR hybrid assembly according to claim 1, characterized in that: Threaded holes (13) are evenly formed on the tops of the support pad (2) and the support web (3), and the inner cavities of the threaded holes (13) are threadedly connected with connecting bolts (14).

3. The weight-reducing bracket for an SCR hybrid assembly according to claim 1, characterized in that: The top of the bracket bottom plate (5) is evenly provided with connection grooves (15), and the center of the inner cavity of the connection groove (15) is provided with a guide rod (17).

4. The weight-reducing bracket for an SCR hybrid assembly according to claim 3, characterized in that: The guide rod (17) is connected to the center position of the bottom of the bracket web (3) and the bracket rib (4), and the surface of the bracket bottom plate (5) is evenly provided with guide holes (16) around the periphery, and the position and shape of the guide holes (16) correspond to those of the connecting groove (15).

5. The weight-reducing bracket for an SCR hybrid assembly according to claim 4, characterized in that: The end of the guide rod (17) is slidably connected to a clamping column (18), and the outer surface of the guide rod (17) is sleeved with an extrusion spring (19), and the extrusion spring (19) is tightly fitted with the clamping column (18).

6. The weight-reducing bracket for an SCR hybrid assembly according to claim 1, characterized in that: The nut (8) is located on the upper surface of the screw (7), and the upper circular pad (9) is located at the lower part of the nut (8), the spring washer (10) is located at the lower part of the upper circular pad (9), and the lower circular pad (11) is located at the lower part of the spring washer (10), and the friction pad (12) is located at the lower part of the lower circular pad (11).

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