阅读说明：本技术 一种船用柴油机排气管路隔热水密通舱管件 (Heat-insulating watertight cabin-through pipe fitting for exhaust pipeline of marine diesel engine ) 是由 曾银河 黄仕勇 曹永� 钟新权 程义超 于 2019-10-31 设计创作，主要内容包括：本发明涉及一种船用柴油机排气管路隔热水密通舱管件。包括内管以及套设在内管外周侧的外管,所述内管和外管之间形成填充腔,所述填充腔内填充有隔热材料,还包括用于将填充腔的两端进行封堵的端部连接结构,所述端部连接结构有两个并分别设置在填充腔的两端,所述端部连接结构还用于与排气管密封连接、以使排气管和内管密封连通。通过采用本发明的通舱管件,通舱管件的外管能够保持在较低的温度下,大大降低了外管的温度,解决了高温的船用柴油机排气管路穿舱时热量传递带来的危害。另外,还使得通舱管件具有较高的密封性能,实现了通舱管件和舱壁之间的水密设计,同时通过与排气管固定连接,还解决了排气管路在穿舱壁时窜动的问题。(The invention relates to a heat-insulating watertight cabin-through pipe fitting for an exhaust pipeline of a marine diesel engine. The heat insulation pipe comprises an inner pipe and an outer pipe sleeved on the outer peripheral side of the inner pipe, a filling cavity is formed between the inner pipe and the outer pipe, heat insulation materials are filled in the filling cavity, the heat insulation pipe further comprises end connection structures used for plugging two ends of the filling cavity, the two end connection structures are arranged at two ends of the filling cavity respectively, and the end connection structures are further used for being in sealing connection with an exhaust pipe so that the exhaust pipe and the inner pipe are in sealing communication. By adopting the cabin penetrating pipe fitting, the outer pipe of the cabin penetrating pipe fitting can be kept at a lower temperature, the temperature of the outer pipe is greatly reduced, and the harm caused by heat transfer when a high-temperature exhaust pipeline of a marine diesel engine penetrates through the cabin is solved. In addition, still make the logical cabin pipe fitting have higher sealing performance, realized the watertight design between logical cabin pipe fitting and the bulkhead, simultaneously through with blast pipe fixed connection, still solved the problem of exhaust pipe line drunkenness when the bulkhead is worn.)

1. The utility model provides a marine diesel engine exhaust pipe heat-proof watertight leads to cabin pipe fitting which characterized in that: including inner tube (1) and cover establish outer tube (2) at inner tube (1) periphery side, form between inner tube (1) and outer tube (2) and fill the chamber, it has thermal insulation material (3) to fill the intracavity packing, still including being used for carrying out tip connection structure (4) of shutoff with the both ends in filling the chamber, tip connection structure (4) have two and set up respectively at the both ends in filling the chamber, tip connection structure (4) still are used for with blast pipe sealing connection, so that blast pipe and inner tube (1) sealed intercommunication.

2. The marine diesel exhaust line heat-insulating watertight bulkhead fitting of claim 1, wherein: inner tube (1) is long in outer tube (2), and the both ends of inner tube (1) have the installation department, end connection structure (4) include the go-between, the go-between cover is established and is fixed on the installation department that corresponds.

3. The marine diesel exhaust line heat-insulating watertight bulkhead fitting of claim 2, wherein: the connection ring is threadedly fitted on the corresponding mounting portion.

4. The marine diesel exhaust line heat-insulating watertight bulkhead fitting of claim 2, wherein: the inner tube (1) is shorter than the total length of the filling cavity and the two connecting rings, and a first welding groove (11) for welding and fixing is formed between two end faces of the inner tube (1) and the inner ring wall of the corresponding connecting ring.

5. The marine diesel exhaust line heat-insulating watertight bulkhead fitting of claim 2, wherein: the outer tube (2) is clamped between the two connecting rings, first inclined planes (9) are arranged on two end faces of the outer tube (2), second inclined planes (8) are arranged on the connecting rings and face towards the inner side of the outer tube (2), and the first inclined planes (9) and the second inclined planes (8) are used for forming second welding position grooves (10).

6. The marine diesel exhaust line heat-insulating watertight bulkhead fitting of claim 5, wherein: the inner side of each connecting ring is provided with a clamping ring structure (12), and the clamping ring structures (12) are inserted into the outer pipe (2) and are stopped and limited with the inner wall of the outer pipe (2).

7. The marine diesel exhaust line heat-insulating watertight bulkhead fitting of claim 2, wherein: the outer end face, deviating from the outer tube (2), of the connecting ring is provided with threaded holes (5), and the threaded holes (5) are arranged at intervals along the circumferential direction of the end face of the connecting ring.

8. The marine diesel exhaust line heat-insulating watertight bulkhead fitting of claim 1, wherein: the outer periphery of the outer pipe (2) is provided with a mounting structure (6), the mounting structure (6) is used for being assembled with a corresponding bulkhead (7) in a sealing and fixing mode, and the mounting structure (6) comprises an annular web or a connecting flange which is fixedly connected with the outer periphery of the outer pipe (2) in a sealing mode.

9. The marine diesel exhaust line heat-insulating watertight bulkhead fitting of claim 8, wherein: the mounting structure (6) further comprises heat dissipating fins (14) arranged on the annular web or the connecting flange.

10. The marine diesel exhaust line heat-insulating watertight bulkhead fitting of claim 8, wherein: the heat insulation pipe also comprises a heat insulation layer (13) coated on the outer periphery of the outer pipe (2).

Technical Field

The invention relates to the technical field of ship cabin penetrating pieces, in particular to a heat-insulating watertight cabin penetrating piece for a gas exhaust pipeline of a ship diesel engine.

Background

When the temperature of the bulkhead is too high, the heat radiation of the high-temperature bulkhead can heat the articles in the cabin very easily, even the flammable and combustible articles can be ignited in serious conditions, safety accidents are caused, and the safe navigation of the ship is not facilitated.

Disclosure of Invention

The invention aims to provide a heat-insulating watertight cabin-through pipe fitting for an exhaust pipeline of a marine diesel engine, which is used for solving the technical problems that a cabin wall of a part connected with a smoke exhaust pipe is easy to heat and the cabin wall has thermal radiation and overhigh temperature in the prior art, and simultaneously solves the problems that a shock absorber is adopted to install and push the diesel engine and the exhaust pipeline is easy to move when penetrating through the cabin wall by being fixedly connected with an exhaust pipe (smoke exhaust pipe).

In order to achieve the purpose, the invention provides a heat-insulating watertight through-cabin pipe fitting for a marine diesel engine exhaust pipeline, which adopts the following technical scheme:

the utility model provides a marine diesel engine exhaust pipe heat-insulating watertight leads to cabin pipe fitting includes that inner tube and cover establish the outer tube at inner tube periphery side, form between inner tube and the outer tube and fill the chamber, it has thermal insulation material to fill the intracavity packing, still carries out the end connection structure of shutoff including being used for the both ends of filling the chamber, end connection structure has two and sets up respectively at the both ends of filling the chamber, end connection structure still be used for with blast pipe sealing connection, so that blast pipe and inner tube sealing intercommunication.

Further, the inner tube is longer than the outer tube, and the both ends of inner tube have the installation department, end connection structure includes the go-between, the go-between cover is established and is fixed on the installation department that corresponds.

Further, the connection ring is screw-fitted on the corresponding mounting portion.

Further, the inner tube is shorter than the total length of the filling cavity and the two connecting rings, and a first welding position groove for welding and fixing is formed between two end faces of the inner tube and the inner ring wall of the corresponding connecting ring.

Furthermore, the outer tube is clamped between the two connecting rings, first inclined planes are arranged on two end faces of the outer tube, each connecting ring is used for facing the inner side of the outer tube and provided with a second inclined plane, and the first inclined planes and the second inclined planes are used for forming second welding position grooves.

Furthermore, the inner side of each connecting ring is provided with a clamping ring structure, and the clamping ring structure is inserted into the outer pipe and is blocked and limited with the inner wall of the outer pipe.

Furthermore, threaded holes are formed in the end face, away from the outer tube, of the connecting ring, and the threaded holes are multiple and are arranged at intervals along the circumferential direction of the end face of the connecting ring.

Further, the outer periphery of the outer pipe is provided with a mounting structure, the mounting structure is used for being in sealed and fixed assembly with a corresponding bulkhead, and the mounting structure comprises an annular web or a connecting flange which is in sealed and fixed with the outer periphery of the outer pipe.

Further, the mounting structure further comprises a heat dissipation fin arranged on the annular web or the connecting flange.

Further, the heat insulation pipe also comprises a heat insulation layer coated on the outer periphery of the outer pipe.

Compared with the prior art, the heat-insulating watertight cabin-through pipe fitting for the exhaust pipeline of the marine diesel engine has the beneficial effects that: by adopting the cabin penetrating pipe fitting, the heat insulation material is filled in the filling cavity between the outer pipe and the inner pipe, the heat insulation material can form a blocking effect on the heat on the inner pipe, and experiments prove that the heat insulation material can block 95% of the heat, so that the outer pipe can be kept at a lower temperature, the temperature of the outer pipe is greatly reduced, and the harm caused by heat transfer when a high-temperature marine diesel engine exhaust pipeline penetrates through a cabin is solved. In addition, the connection between the cabin-through pipe fitting and the cabin wall, the connection between the end part connection structure and the corresponding exhaust pipe are all in sealing connection, so that the cabin-through pipe fitting has high sealing performance, the watertight design between the cabin-through pipe fitting and the cabin wall is realized, and meanwhile, the problem that the exhaust pipeline moves when penetrating through the cabin wall due to the fact that the shock absorber is adopted to install and push the diesel engine in the current stage is solved through the fixed connection between the cabin-through pipe fitting and the exhaust pipe.

Drawings

FIG. 1 is a schematic view showing the overall structure of a heat-insulating watertight bulkhead fitting for an exhaust pipe of a marine diesel engine according to embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

fig. 4 is a schematic view of the overall structure of the heat-insulating watertight bulkhead fitting of the exhaust pipe of the marine diesel engine according to embodiment 2 of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

FIG. 6 is a schematic view showing the overall structure of a heat-insulating watertight piping member for an exhaust pipe of a marine diesel engine according to embodiment 3 of the present invention;

fig. 7 is a schematic view of the overall structure of the heat-insulating watertight bulkhead fitting for the exhaust pipe of the marine diesel engine according to embodiment 4 of the present invention.

In the figure, 1-an inner pipe, 2-an outer pipe, 3-a heat insulation material, 4-an end connection structure, 5-a threaded hole, 6-a mounting structure, 7-a bulkhead, 8-a second inclined surface, 9-a first inclined surface, 10-a second welding position groove, 11-a first welding position groove, 12-a clamping ring structure, 13-a heat insulation layer and 14-a radiating fin.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.