Exhaust pipe support structure for medium-speed diesel engine
By designing a bracket and crossbeam mechanism, combined with heat insulation plates and rotatable bracket plates, the problem of fixing failure caused by high temperature vibration of the exhaust pipe of medium-speed diesel engine was solved, achieving stable fixing of the exhaust pipe and extending its service life.
Patent Information
- Application Number
- CN202520826017.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-27
AI Technical Summary
The exhaust pipe support structure of existing medium-speed diesel engines is simple, which leads to the bolts loosening under high temperature vibration, resulting in exhaust pipe rupture and fixing bolt breakage, which in turn causes high temperature gas leakage in the pipeline.
An exhaust pipe support structure including a support mechanism and a crossbeam mechanism was designed. By using a heat insulation plate and a rotatable support plate, combined with bolts and clamps, the heat insulation and fixing design avoids fixing failure caused by heat transfer, thus ensuring the stable fixing of the exhaust pipe.
It effectively prevents the exhaust pipe from falling off due to high temperature and vibration, improves the service life and safety of the exhaust pipe, and prevents high temperature gas leakage.
Smart Images
Figure CN223975177U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine diesel engine technology, specifically to an exhaust pipe support structure for a medium-speed diesel engine. Background Technology
[0002] The turbocharging system of a diesel engine is used to increase the amount of air entering the combustion chamber. Fresh air is filtered through an air filter, compressed by the turbocharger compressor, cooled by an intercooler, and then distributed to each cylinder via a cast aluminum intake manifold. The exhaust gases from combustion flow into the exhaust pipe through the exhaust manifold, driving the turbocharger turbine, which in turn drives the compressor impeller.
[0003] Due to the redesign of the turbocharger system of a certain medium-speed diesel engine, in order to improve the smooth flow of exhaust pipes in each cylinder and ensure that the exhaust gas continuously provides kinetic energy to the turbocharger, the turbocharger exhaust pipe was redesigned. Because the exhaust pipe is affected by the diesel engine body and the airflow in the pipes during diesel engine operation, it will generate significant vibration. Vibration will reduce the service life of the exhaust pipe and make it prone to cracking, breakage of fixing bolts, and other situations that affect the normal operation of the diesel engine.
[0004] Therefore, diesel engine exhaust pipes need to be fixed and limited with brackets during use. Existing exhaust pipe brackets have a simple structure, which leads to the exhaust pipe being exposed to high temperature vibrations. This heat and temperature can cause the bolts inside the bracket to loosen, resulting in exhaust pipe rupture and bolt breakage, and leakage of high-temperature gas inside the pipe. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides an exhaust pipe support structure for medium-speed diesel engines. This solves the problem that the exhaust pipe support structure is too simple, which leads to the exhaust pipe being exposed to high-temperature vibrations and causing the bolts inside the support to loosen due to heat and temperature. This can result in exhaust pipe rupture and bolt breakage, leading to high-temperature gas leakage inside the pipe.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: an exhaust pipe bracket structure for a medium-speed diesel engine, comprising: a bracket mechanism and a crossbeam mechanism, wherein the bracket mechanism is assembled at the bottom of the crossbeam mechanism, the bracket mechanism includes a bracket plate, a first heat insulation plate is assembled at the top of the bracket plate, and a hinge is assembled at the top of the first heat insulation plate, the crossbeam mechanism includes a crossbeam plate, a second heat insulation plate is assembled at the bottom of the crossbeam plate, the bottom of the second heat insulation plate is connected to the hinge, and both ends of the crossbeam plate are equipped with support legs.
[0009] Preferably, the support plate is a welded component made of Q235A material and coated with anti-rust paint. The welded component improves the overall strength of the support plate, and the anti-rust paint increases the service life of the support plate.
[0010] Preferably, the support plate has a first fixing hole evenly distributed on its outer side, and the first fixing hole is used to fix the support plate to the outside of the turbocharger bracket.
[0011] Preferably, both the crossbeam and the support are welded components made of Q235A steel and coated with anti-rust paint. The welded components improve the overall strength of the crossbeam and the support, while the anti-rust paint increases the service life of the crossbeam and the support.
[0012] Preferably, the crossbeam plate and the support legs are evenly provided with second fixing holes on the outside, and the bottom ends of the second heat insulation plate are equipped with clamps. The second fixing holes are used to fix the crossbeam plate and the support legs to the outside of the turbocharger bracket, and the clamps are used to fix and install the exhaust pipe.
[0013] Preferably, bolt groups are evenly distributed on the outside of the support leg, and the bolt groups are connected to the crossbeam plate by nuts. The bolt groups are used to fix and assemble the support leg and the crossbeam plate.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides an exhaust pipe support structure for a medium-speed diesel engine, which has the following advantages:
[0016] This exhaust pipe bracket structure for medium-speed diesel engines uses a combination of bracket and crossbeam mechanisms to fix the exhaust pipe to the turbocharger bracket. This avoids the problem of traditional brackets being prone to detachment due to high temperatures and vibrations from the exhaust pipe. Furthermore, the addition of a first and second heat insulation plate utilizes its heat insulation properties to prevent heat transfer through the clamps to the crossbeam and legs during exhaust pipe fixing, which could cause thermal expansion and contraction of the fixing bolts and lead to fixing failure. Additionally, the bracket plate features a rotatable design, preventing the exhaust pipe from remaining taut after fixing, which is a common problem with traditional brackets and makes fixing and assembly difficult. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the assembly of this utility model;
[0018] Figure 2 This is a front view of the support mechanism of this utility model;
[0019] Figure 3 This is a front view of the beam mechanism of this utility model;
[0020] Figure 4This is a schematic diagram of the assembly of the present invention with a diesel engine exhaust pipe.
[0021] In the figure: 1. Support mechanism; 11. Support plate; 12. First fixing hole; 13. First heat insulation plate; 14. Hinge; 2. Crossbeam mechanism; 21. Crossbeam plate; 22. Second heat insulation plate; 23. Support leg; 24. Bolt group; 25. Clamp; 26. Second fixing hole. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] This utility model provides a technical solution, please refer to Figure 1 and Figure 2 A medium-speed diesel engine exhaust pipe support structure includes: a support mechanism 1 and a crossbeam mechanism 2. The support mechanism 1 is assembled at the bottom of the crossbeam mechanism 2. The support mechanism 1 includes a support plate 11, which is used to support the crossbeam plate 21. A first heat insulation plate 13 is assembled on the top of the support plate 11. The first heat insulation plate 13 can be made of materials such as rock wool board, glass fiber board, quartz wool board, and silicate board, and is used to isolate heat and temperature.
[0024] The top of the first heat insulation plate 13 is equipped with a hinge 14. The hinge 14 allows the bracket plate 11 to rotate during assembly, thereby increasing the assembly speed of the bracket plate 11. The bracket plate 11 is a welded part made of Q235A material and coated with anti-rust paint. The welded part improves the overall strength of the bracket plate 11, and the anti-rust paint increases the service life of the bracket plate 11. The bracket plate 11 is uniformly provided with first fixing holes 12 on its exterior. The first fixing holes 12 are used to fix the bracket plate 11 to the exterior of the turbocharger bracket.
[0025] Please see Figure 3 and Figure 4 The crossbeam mechanism 2 includes a crossbeam plate 21, which is used to fix the exhaust pipe. A second heat insulation plate 22 is installed at the bottom of the crossbeam plate 21. The second heat insulation plate 22 is made of the same material as the first heat insulation plate 13 and is used to isolate heat. The bottom of the second heat insulation plate 22 is connected to the hinge 14. Both ends of the crossbeam plate 21 are equipped with legs 23, which are used to support the crossbeam plate 21.
[0026] Both the crossbeam plate 21 and the support leg 23 are welded parts made of Q235A steel and coated with anti-rust paint. The welded parts improve the overall strength of the crossbeam plate 21 and the support leg 23, and the anti-rust paint increases the service life of the crossbeam plate 21 and the support leg 23. The outer sides of the crossbeam plate 21 and the support leg 23 are evenly distributed with second fixing holes 26. Both ends of the bottom of the second heat insulation plate 22 are equipped with clamps 25. The second fixing holes 26 are used to fix the crossbeam plate 21 and the support leg 23 to the outside of the turbocharger bracket. The clamps 25 are used to fix and install the exhaust pipe. The outer sides of the support leg 23 are evenly distributed with bolt groups 24. The bolt groups 24 are connected to the crossbeam plate 21 by nuts. The bolt groups 24 are used to fix and assemble the support leg 23 and the crossbeam plate 21.
[0027] This solution first connects the exhaust pipe to the clamp 25, assembles the support leg 23 and the crossbeam plate 21 with bolt group 24, connects the support leg 23 to the turbocharger bracket of the diesel engine through the second fixing hole 26, and finally rotates the bracket plate 11 to keep the bracket plate 11 perpendicular to the crossbeam plate 21. Then, by using washers and bolts, the bracket plate 11 is assembled to the outside of the turbocharger bracket of the diesel engine through the crossbeam plate 21, thereby completing the fixation of the exhaust pipe.
[0028] The exhaust pipe is fixed to the turbocharger bracket by the cooperation of the bracket mechanism 1 and the crossbeam mechanism 2. This avoids the problem that traditional brackets are prone to falling off due to the high temperature and vibration of the exhaust pipe when fixing it. At the same time, the added first heat insulation plate 13 and second heat insulation plate 22 utilize the heat insulation properties to prevent the clamp 25 from transferring heat to the crossbeam plate 21 and the support leg 23 when fixing the exhaust pipe, which would cause the fixing bolts to expand and contract due to heat and thus fail to fix it.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An exhaust pipe support structure for a medium speed diesel engine, comprising: Support mechanism (1) and crossbeam mechanism (2) characterized in that: the support mechanism (1) is assembled at the bottom of the crossbeam mechanism (2), the support mechanism (1) comprises a support plate (11), the top of the support plate (11) is equipped with a first heat insulation plate (13), the top of the first heat insulation plate (13) is equipped with a hinge (14), the crossbeam mechanism (2) comprises a crossbeam plate (21), the bottom of the crossbeam plate (21) is equipped with a second heat insulation plate (22), the bottom of the second heat insulation plate (22) is connected with the hinge (14), both ends of the crossbeam plate (21) are equipped with a support leg (23).
2. An exhaust pipe support structure for a medium-speed diesel engine according to claim 1, characterized in that: The support plate (11) is a welded part, the material is Q235A, and the surface is sprayed with rust-proof paint.
3. The exhaust pipe support structure for a medium speed diesel engine according to claim 1, characterized by: First fixing holes (12) are uniformly arranged outside the support plate (11).
4. The exhaust pipe support structure for a medium speed diesel engine according to claim 1, characterized by: The crossbeam plate (21) and the support leg (23) are welded parts, the material is Q235A, and the surface is sprayed with rust-proof paint.
5. The exhaust pipe support structure for a medium speed diesel engine according to claim 1, characterized by: Second fixing holes (26) are uniformly arranged outside the crossbeam plate (21) and the support leg (23), and clamps (25) are assembled at both ends of the bottom of the second heat insulation plate (22).
6. The exhaust pipe support structure for a medium speed diesel engine according to claim 1, characterized by: Bolt groups (24) are uniformly arranged outside the support leg (23), and the bolt groups (24) are connected with the crossbeam plate (21) through nuts.