SCR (Selective Catalytic Reduction) air inlet pipe transfer device for marine low-speed diesel engine
By designing a special support and lifting lug structure for the transfer device, the safety hazards of the SCR intake pipe during the transfer process were solved, and the stability and safety of the intake pipe were improved.
Patent Information
- Application Number
- CN202520563992.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-27
AI Technical Summary
During the disassembly and transfer of marine low-speed diesel engines, the lack of a dedicated transfer device for the SCR intake pipe leads to safety hazards such as rolling, sliding, tipping over, and deformation.
A transfer device including a bracket, a base, and lifting lugs was designed. The bracket consists of a side bracket and a middle bracket. The side brackets cooperate with the lower edges of both ends of the air intake pipe, and the middle bracket cooperates with the lower surface. The lifting lugs are distributed on the outside of the side brackets to ensure the stability of the air intake pipe and lower the center of gravity.
It effectively prevents the SCR intake pipe from rolling, sliding, and tipping over during transport, ensuring safe transport, avoiding deformation, and improving the stability and safety of transport.
Smart Images
Figure CN223836129U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a low-speed diesel engine component transfer fixture, specifically a marine low-speed diesel engine SCR intake pipe transfer device. Background Technology
[0002] After the production and construction of marine low-speed diesel engines are completed, they need to be disassembled and transported, and there are very strict and detailed shipping specifications for each component during disassembly and transport. SCR refers to Selective Catalytic Reduction technology, which is used in the field of marine low-speed diesel engines for exhaust aftertreatment. Currently, MAN diesel engines lack a transfer device for their SCR intake pipes. For such large and heavy components as the SCR intake pipes of marine low-speed diesel engines, transporting them without a transfer device is prone to rolling, sliding, or tipping, posing safety hazards and potentially causing deformation of the SCR due to improper transport.
[0003] To address this issue, a specialized SCR intake pipe transfer device needs to be designed to resolve the safety hazards associated with transferring the SCR intake pipe. Utility Model Content
[0004] The purpose of this invention is to overcome the defects of the prior art and provide a marine low-speed diesel engine SCR intake pipe transfer device to prevent the SCR intake pipe from rolling, sliding, overturning or deforming during transfer.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] This utility model provides a transfer device for the intake pipe of a marine low-speed diesel engine (SCR), including a bracket, a base, and lifting lugs. The bracket includes a side bracket and a middle bracket. The base is a rectangular plate. The lower edge of the side bracket is perpendicularly connected to the short side of the rectangular plate. The middle bracket is fixedly connected to the upper surface of the base, and the axis of the middle bracket is perpendicular to the upper surface of the base. There are multiple lifting lugs, which are distributed on the outside of the side brackets.
[0007] The upper edge of the side bracket mates with the lower edges of both ends of the SCR intake pipe, and the upper surface of the middle bracket mates with the lower surface of the SCR intake pipe.
[0008] Furthermore, the upper edge of the side support is provided with a V-shaped opening, and a horizontal transition is provided at the intersection of the two slopes of the V-shaped opening.
[0009] Furthermore, the thickness of the side support is less than the width of the mating surface between the lower edges of both ends of the SCR intake pipe and the side support.
[0010] Furthermore, the height difference between the upper surface of the intermediate support and the upper edge of the side support in the vertical direction is equal to the height difference between the lower edges of both ends of the SCR intake pipe and the lower surfaces that mate with the side support.
[0011] Furthermore, the intermediate support includes an intermediate platform and an intermediate support. The intermediate platform is a circular plate structure, and the intermediate support is a column structure with a cross-shaped cross section.
[0012] Furthermore, the SCR intake pipe has two ends, a small end and a large end, and the side bracket is provided with reinforcing ribs. The reinforcing ribs on the side bracket that fit at the small end are rectangular ribs located on the outside of the side bracket, and the reinforcing ribs on the side bracket that fit at the large end are triangular ribs located on the inside of the side bracket.
[0013] Furthermore, the horizontal distance between the axis of the intermediate support and the small end is greater than the horizontal distance between the axis and the large end.
[0014] Furthermore, the rectangular plate of the base includes an upper surface, a reinforcing rib layer, and a lower surface connected sequentially from top to bottom.
[0015] Furthermore, the distance from the upper surface of the intermediate bracket to the bottom surface of the base is equal to the distance from the lowest point on the lower surface of the SCR intake pipe that mates with the intermediate bracket to the lowest point of the SCR intake pipe.
[0016] Furthermore, there are four hanging lugs, which are distributed in pairs on the outer sides of the side supports on both sides of the base.
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] 1. This utility model consists of side supports at both ends and a central support fixedly connected to a base. The side supports at both ends are designed with slopes and heights corresponding to the upper edges of the SCR intake pipe, ensuring that both ends of the intake pipe are held in the middle of the supports while maintaining horizontality. The thickness of the side supports is slightly less than the thickness of the intake pipe ends, and the supports at both ends are reinforced with ribs to increase strength and prevent bending under stress. The height and area of the central platform of the transfer device are designed according to the dimensions of the air pipe below the intake pipe, ensuring that the central support fits snugly against the air pipe below, preventing the intake pipe from rolling while evenly distributing the intake pipe pressure. The overall height of the transfer device is designed according to the side branch pipes of the intake pipe, ensuring that the side branch pipes are close to the ground, thereby lowering the overall center of gravity and improving stability. The transfer device ensures that the SCR intake pipe does not roll or slide while maintaining a low overall center of gravity for both the transfer device and the intake pipe, preventing rolling, sliding, tipping over, and deformation, effectively solving the safety hazards associated with SCR intake pipe transfer.
[0019] 2. The side supports on both sides of this utility model are provided with a total of four lifting lugs. During transportation, the SCR intake pipe and the transportation device are lifted simultaneously by the lifting lugs on the transportation device and the SCR intake pipe. The force distribution is balanced, which ensures the stability of the SCR intake pipe during transportation. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a side view of the large end of the present invention;
[0022] Figure 3 This is a side view of the small end of the present invention;
[0023] Figure 4 This is a top view of the present invention;
[0024] Figure 5 This is a front view schematic diagram of the present utility model;
[0025] Figure 6 This is a schematic diagram showing the cooperation between the transfer device of this utility model and the SCR intake pipe;
[0026] Figure 7 This is a side view of the small end side when the transfer device of this utility model is used in conjunction with the SCR intake pipe;
[0027] Figure 8 This is a test diagram of the large end side when the transfer device of this utility model is used in conjunction with the SCR intake pipe;
[0028] Figure 9 This is a front view schematic diagram of the transfer device of this utility model when it is used in conjunction with the SCR intake pipe;
[0029] Figure 10 This is a structural dimension drawing of the present invention;
[0030] In the diagram, 1 is the bracket, 2 is the base, 3 is the lifting lug, 4 is the SCR intake pipe, and 5 is the transfer device. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0034] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0036] like Figures 1-5 As shown, this utility model relates to a transfer device for the intake pipe of a marine low-speed diesel engine (SCR), comprising a bracket 1, a base 2, and lifting lugs 3. The base 2 is a rectangular plate, and the bracket includes side brackets and a middle bracket. The lower edge of the side bracket is perpendicularly connected to the short side of the rectangular plate, and the middle bracket is fixedly connected to the upper surface of the base 2, with its axis perpendicular to the upper surface of the base 2. During transfer, the upper edges of the side brackets support both ends of the SCR intake pipe 4, and the upper surface of the middle bracket supports the bottom surface of the SCR intake pipe 4.
[0037] In this embodiment, the upper edge of the side bracket is provided with a V-shaped opening, and a horizontal transition is provided at the intersection of the two slopes of the V-shaped opening. The upper edge of the side bracket is designed with a slope and height of corresponding size according to the corresponding positions of the two ends of the SCR intake pipe 4, to ensure that the two ends of the SCR intake pipe 4 are stuck in the middle of the bracket, while ensuring that the two ends of the SCR intake pipe 4 are horizontal.
[0038] The SCR intake pipe 4 has two ends, a small end and a large end. In this embodiment, the side brackets are provided with reinforcing ribs. The reinforcing ribs on the side brackets that mate with the small end are rectangular ribs located on the outer side of the side brackets, while the reinforcing ribs on the side brackets that mate with the large end are triangular ribs located on the inner side of the side brackets. The thickness of the side brackets is less than the width of the mating surfaces between the lower edges of the SCR intake pipe 4 at both ends and the side brackets. The side brackets at both ends are strengthened by reinforcing ribs to ensure that the side brackets at both ends will not bend under stress.
[0039] In this embodiment, the intermediate support consists of an intermediate platform and an intermediate support. The intermediate platform is a circular plate structure, and the intermediate support is a column structure with a cross-shaped cross section. The horizontal distance between the axis of the intermediate support and its smaller end is greater than its horizontal distance from its larger end. The distance from the upper surface of the intermediate support to the bottom surface of the base is equal to the distance from the lowest point on the lower surface of the SCR intake pipe 4 that mates with the intermediate support to the lowest point of the SCR intake pipe 4. Simultaneously, the height of the intermediate support and the area of the intermediate platform of the transfer device 5 are designed according to the dimensions of the air pipe below the SCR intake pipe 4 to ensure that the intermediate support fits precisely against the bottom surface of the SCR intake pipe 4, preventing the SCR intake pipe 4 from rolling while evenly distributing the pressure on the SCR intake pipe 4.
[0040] like Figures 6-9 As shown, in this embodiment, the overall height of the transfer device 5 is designed according to the branch pipes on both sides of the SCR intake pipe 4. Specifically, the height difference between the upper surface of the middle support and the upper edge of the side support in the vertical direction is equal to the height difference between the lower edges of both ends of the SCR intake pipe 4 and the lower surface that cooperates with the side support. This ensures that when the SCR intake pipe 4 and the transfer device 5 are in cooperation, the branch pipes on both sides are close to the ground, thereby lowering the overall center of gravity and ensuring stability.
[0041] In this embodiment, the rectangular plate of the base 2 is composed of an upper surface, a reinforcing rib layer and a lower surface connected sequentially from top to bottom, which ensures the structural strength of the base 2 while avoiding excessive mass of the base 2.
[0042] In this embodiment, there are multiple lifting lugs 3, which are distributed on the outside of the side supports. As a preferred embodiment, there are four lifting lugs 3, which are distributed in pairs on the outside of the side supports on both sides of the base 2. During transportation, the SCR intake pipe 4 and the transportation device 5 are lifted simultaneously by the lifting lugs 3 on the transportation device and the SCR intake pipe 4. The force distribution is balanced, which ensures the stability of the SCR intake pipe 4 during transportation.
[0043] During transport, the SCR intake pipe 4 is lifted above the transport device 5. The orientation of the SCR intake pipe 4 is adjusted so that both ends of the SCR intake pipe 4 are aligned with the side supports at both ends of the transport device 5, and the lower air pipe is aligned with the middle support of the transport device 5. The SCR intake pipe 4 and the transport device 5 are simultaneously lifted using the lifting lugs 3 on the transport device 5 and the SCR intake pipe 4. The transport device 5, through the slopes of the side supports at both ends and the middle platform of the middle support, ensures that the SCR intake pipe 4 will not roll or slide, while also keeping the overall center of gravity of the transport device 5 and the SCR intake pipe 4 low to prevent tipping, effectively solving the safety hazards of transporting the SCR intake pipe 4.
[0044] The specific structural dimensions of the marine low-speed diesel engine SCR intake pipe transfer device described in this utility model are determined according to the structural dimensions of the SCR intake pipe 4 it is used with. In this embodiment, the dimensions of the device are as follows: Figure 10 As shown.
[0045] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A transfer device for the intake manifold of a marine low-speed diesel engine (SCR), characterized in that, The system includes a bracket (1), a base (2), and lifting lugs (3). The bracket includes a side bracket and a middle bracket. The base (2) is a rectangular long plate. The lower edge of the side bracket is perpendicularly connected to the short side of the rectangular long plate. The middle bracket is fixedly connected to the upper surface of the base (2), and the axis of the middle bracket is perpendicular to the upper surface of the base (2). There are multiple lifting lugs (3), which are distributed on the outside of the side brackets. The upper edge of the side bracket mates with the lower edges of both ends of the SCR intake pipe (4), and the upper surface of the middle bracket mates with the lower surface of the SCR intake pipe (4).
2. The marine low-speed diesel engine SCR intake manifold transfer device according to claim 1, characterized in that, The upper edge of the side support is provided with a V-shaped opening, and a horizontal transition is provided at the intersection of the two slopes of the V-shaped opening.
3. The marine low-speed diesel engine SCR intake manifold transfer device according to claim 1, characterized in that, The thickness of the side bracket is less than the width of the mating surface between the lower edges of both ends of the SCR intake pipe (4) and the side bracket.
4. The marine low-speed diesel engine SCR intake manifold transfer device according to claim 1, characterized in that, The height difference between the upper surface of the intermediate support and the upper edge of the side support in the vertical direction is equal to the height difference between the lower edges of both ends of the SCR intake pipe (4) and the lower surface that mates with the side support.
5. A marine low-speed diesel engine SCR intake manifold transfer device according to claim 1, characterized in that, The intermediate support includes an intermediate platform and an intermediate support. The intermediate platform is a circular plate structure, and the intermediate support is a column structure with a cross-shaped cross section.
6. The marine low-speed diesel engine SCR intake manifold transfer device according to claim 1, characterized in that, The SCR intake pipe (4) has a small end and a large end at both ends. The side bracket is provided with reinforcing ribs. The reinforcing ribs on the side bracket that are matched at the small end are rectangular ribs located on the outside of the side bracket, and the reinforcing ribs on the side bracket that are matched at the large end are triangular ribs located on the inside of the side bracket.
7. A marine low-speed diesel engine SCR intake manifold transfer device according to claim 6, characterized in that, The distance between the axis of the intermediate support and the small end in the horizontal direction is greater than the distance between the axis and the large end in the horizontal direction.
8. A marine low-speed diesel engine SCR intake manifold transfer device according to claim 1, characterized in that, The rectangular plate of the base (2) includes an upper surface, a reinforcing rib layer and a lower surface connected from top to bottom.
9. A marine low-speed diesel engine SCR intake manifold transfer device according to claim 1, characterized in that, The distance from the upper surface of the intermediate support to the bottom surface of the base is equal to the distance from the lowest point of the lower surface of the SCR intake pipe (4) that mates with the intermediate support to the lowest point of the SCR intake pipe (4).
10. A marine low-speed diesel engine SCR intake manifold transfer device according to claim 1, characterized in that, The number of the lifting lugs (3) is four, and they are distributed in pairs on the outside of the side supports on both sides of the base (2).