Improved structure of outlet end of ship smoke exhaust pipe
By connecting the auxiliary exhaust pipe to the main exhaust pipe and setting up a bent section and inclined branch exhaust pipe, the problem of impurities in the flue gas covering the container was solved, the flue gas velocity was increased and cross-contamination was prevented, and the emission efficiency was improved.
Patent Information
- Application Number
- CN202423318941.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing technologies have failed to effectively prevent impurities from the exhaust pipes of ships from covering the containers, and the cross-contamination of exhaust gases is a serious problem.
Connect the auxiliary exhaust pipe to the main exhaust pipe, add a wind deflector, and install a bent section and an inclined branch exhaust pipe at the outlet end of the main exhaust pipe to form a combined emission structure, so as to accelerate the flow of flue gas and prevent impurities from covering it.
This achieves the goal of preventing impurities in the flue gas from covering the container, increasing the flue gas velocity, preventing cross-contamination of flue gas, and improving emission efficiency.
Smart Images

Figure CN223521029U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ship exhaust pipe technical field, concretely relates to a ship exhaust pipe outlet end improvement structure. BACKGROUND
[0002] The ship exhaust system is a pipe system for removing exhaust gas of various fuel oil equipment of the ship, and the system is mainly for equipment such as the main engine, the generator, the fuel oil boiler and the fire-fighting diesel engine. The composition of the system mainly has a pipeline, a silencer, an expansion joint and the like. According to the pipeline arrangement classification: the upper exhaust and the stern exhaust, the upper exhaust is that the exhaust pipeline passes through the exhaust passages on the left and right sides of the engine room to go upwards and reaches the uppermost deck of the ship. When the ship is transported, impurities at the outlet end of the exhaust pipe can be sprayed on the container due to the high container of the ship. Since the exhaust pipe is independently discharged, in order to avoid mutual mixing of the flue gas and to avoid covering the container with the flue gas impurities, the patent proposes a ship exhaust pipe outlet end improvement structure.
[0003] As in the prior art, the publication (announcement) number: CN219277778U discloses a ship ventilation and smoke exhaust outlet device, which comprises a ship hull and a deck, the ship hull is provided with an opening and a ventilation grille is installed at the opening; a structure air pipe is installed inside the ship hull; the structure air pipe comprises a pipe body one, a pipe body two and a pipe body three; the pipe body three corresponds to the ventilation grille, the lower surface of the pipe body three is provided as an inclined surface, the inclined surface is arranged downwardly in the direction from inside to outside, the inclined surface extends below the ventilation grille, a groove is formed between the inclined surface and the inner wall of the ship hull; the pipe body three is connected with a floor drain pipe, the inlet of the floor drain pipe is located on the inclined surface and is staggered with the dust particle accumulation position, so as to avoid flue backwater and effectively avoid blockage of the flue and the air duct, and the device has good combination with the ship cabin.
[0004] The exhaust pipe discharge structure is not improved to avoid covering the container with the flue gas impurities, and the existing technical problems still exist. UTILITY MODEL CONTENTS
[0005] In view of the problems existing in the prior art, the utility model provides a ship exhaust pipe outlet end improvement structure, which aims to solve the above-mentioned technical problems.
[0006] In order to achieve the above object, the utility model discloses the following technical scheme realizes: a ship exhaust pipe outlet end improved structure, including smoke pipe top storehouse, main engine exhaust pipe, auxiliary engine exhaust pipe, fixed connector, the main engine exhaust pipe is evenly communicated and is distributed on smoke pipe top storehouse, and the main engine exhaust pipe number is set to two at least, and the outlet end of main engine exhaust pipe is provided with the bending section, and the outlet end of bending section is fixedly installed with fixed connector, and the outlet end of fixed connector is sealedly installed with branch smoke pipe, and the outlet end of branch smoke pipe is provided with the draught door along its smoke direction, and the draught door number is set to two at least, and the draught door is equidistant and is parallelly arranged between each other.
[0007] Preferably, the bending angle direction of the bending section is bent towards the smoke direction of the auxiliary engine exhaust pipe.
[0008] Preferably, the outlet end of the bending section and the outlet end of the branch smoke pipe are arranged on the same axis.
[0009] Preferably, the inlet and outlet ends of the fixed connector are provided with sealing flanges, and the inlet end of the branch smoke pipe and the outlet end of the bending section are provided with sealing flanges, and the fixed connector is sealingly installed between the branch smoke pipe and the bending section through the sealing flanges.
[0010] Preferably, two draught doors are arranged along the smoke direction of the branch smoke pipe.
[0011] Preferably, the main engine exhaust pipe is evenly communicated and distributed on the smoke pipe top storehouse, and the number of the main engine exhaust pipe is three.
[0012] In summary, the utility model provides a kind of ship exhaust pipe outlet end improved structure, compared with prior art, the technical effect realized by the patent is: the auxiliary engine exhaust pipe 3 can be connected with the main engine exhaust pipe 2 in the patent technology, to synthesize a discharge and increase draught door, to achieve the technical effect of preventing impurities from covering on the container;Increase the draught door at the outlet end of the main engine exhaust pipe 2, to achieve the purpose of increasing the internal pressure and flow rate of the exhaust pipe, so that the impurities of the external exhaust gas are sprayed higher and farther, to prevent independent discharge, and smoke gas mutual stringing. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is the ship exhaust pipe outlet end improved structure schematic view of the utility model;
[0014] Fig. 2 It is the ship exhaust pipe outlet end improved structure analytic schematic view of the utility model;
[0015] In the drawing: smoke pipe top storehouse 1, main engine exhaust pipe 2, auxiliary engine exhaust pipe 3, fixed connector 4, bending section 5, branch smoke pipe 6, draught door 7, sealing flange 11. DETAILED DESCRIPTION
[0016] The utility model makes further illustration in connection with the drawings below.
[0017] As Figs. 1-2 shown:
[0018] The technical problem solved by the patent is that the flue gas impurities discharged by the smoke pipe cover the container due to the high container, and the smoke pipes are independently discharged to avoid mutual mixing of the flue gas. The patent technology can connect the auxiliary machine smoke pipe 3 and the main machine smoke pipe 2 to form a discharge pipe and increase the air door, thereby achieving the technical effect of preventing the impurities from covering the container. The air door is added to the outlet end of the main machine smoke pipe 2 to increase the internal pressure and flow rate of the smoke pipe, make the impurities in the discharged atmosphere spray higher and farther, and prevent independent discharge and mutual mixing of the flue gas.
[0019] The utility model discloses a ship smoke pipe outlet end improved structure, including smoke pipe top storehouse 1, main machine smoke pipe 2, auxiliary machine smoke pipe 3, fixed connector 4, the main machine smoke pipe 2 is evenly communicated and is distributed on smoke pipe top storehouse 1, the main machine smoke pipe 2 number is at least set to two, the outlet end of main machine smoke pipe 2 is provided with the bending section 5, the outlet end of bending section 5 is sealed and fixedly installed with fixed connector 4, the outlet end of fixed connector 4 is sealed and is installed with branch smoke pipe 6, and the outlet end of branch smoke pipe 6 is provided with auxiliary machine smoke pipe 3 and is inclined angle intercommunication setting, and branch smoke pipe 6 is provided with air door 7 along its smoke direction, and air door 7 number is at least set to two, and air door 7 is equidistant and is parallelly arranged between each other.
[0020] Specifically: smoke pipe top storehouse 1 is used for installing each main machine smoke pipe 2, the outlet end of main machine smoke pipe 2 is connected with auxiliary machine smoke pipe 3 through fixed connector 4, auxiliary machine smoke pipe 3 converges each main machine smoke pipe 2, forms " a smoke pipe road", and the whole is discharged to the smoke, avoids that the flue gas impurities cover on the container;
[0021] In order to discharge the flow and accelerate the discharge, the outlet end of the main machine smoke pipe 2 is connected with the bending section 5, the bending direction of the bending section 5 is towards the flue gas flow direction of the auxiliary machine smoke pipe 3, the outlet end of the bending section 5 is provided with the fixed connector 4 coaxial with it, the surface of the auxiliary machine smoke pipe 3 is provided with the corresponding branch smoke pipe 6, the branch smoke pipe 6 is sealed and installed with the fixed connector 4, and the branch smoke pipe 6 is inclined angle intercommunication setting with the auxiliary machine smoke pipe 3, and the inclined angle is inclined setting towards the flue gas flow direction of the auxiliary machine smoke pipe 3 opposite direction, the purpose of this structure is to realize from the main machine smoke pipe 2 to the auxiliary machine smoke pipe 3, through the bending and inclined mode setting, the flue gas discharged to the auxiliary machine smoke pipe 3 is accelerated by the flue gas sprayed from the main machine smoke pipe 2, and then is discharged by the auxiliary machine smoke pipe 3, to achieve the rapid smoke discharge and avoid the flue gas impurities covering on the container;
[0022] A plurality of air baffles 7 are arranged in the direction of the flue gas flow inside the branch flue 6, and the air baffles 7 are arranged in parallel and equidistantly to achieve accelerated flow of the flue gas out of the individual main engine flue 2 and prevent mutual mixing of the flue gas of the individual main engine flue 2.
[0023] In at least one embodiment, in order to realize the convergence of the individual main engine flue 2 into the auxiliary engine flue 3 to discharge the flue gas, the bending angle direction of the bending section 5 is arranged to bend towards the flue gas discharge direction of the auxiliary engine flue 3 to realize accelerated flow into the auxiliary engine flue 3.
[0024] In at least one embodiment, in order to realize accelerated flow of the flue gas into the auxiliary engine flue 3 and accelerated discharge of the flue gas in the auxiliary engine flue 3, the outlet end of the bending section 5 and the outlet end of the branch flue 6 are arranged on the same axis.
[0025] In at least one embodiment, in order to realize detachable maintenance and cleaning of the flue between the main engine flue 2 and the auxiliary engine flue 3, the inlet and outlet ends of the fixed pipe 4 are provided with sealing flanges 11, the inlet end of the branch flue 6 and the outlet end of the bending section 5 are provided with sealing flanges 11, and the fixed pipe 4 is sealingly installed between the branch flue 6 and the bending section 5 through the sealing flanges 11 to realize detachable installation of the fixed pipe 4 and facilitate maintenance and cleaning.
[0026] In at least one embodiment, two air baffles 7 are arranged in the flue gas discharge direction of the branch flue 6.
[0027] In at least one embodiment, three main engine flues 2 are evenly and communicatively distributed on the flue top bin 1.
[0028] The embodiments in the utility model are only used for illustrating the utility model, and do not constitute the limitation to the scope of claims, and other substantially equivalent alternatives that can be thought by the person skilled in the art are all within the protection scope of the utility model.
Claims
1. An improved structure of an outlet end of a smokestack of a ship, characterized by comprising: The utility model relates to a smoke pipe top bin (1), main engine smoke pipe (2), auxiliary engine smoke pipe (3), fixed connector (4), smoke pipe top bin (1) is evenly connected and is distributed with main engine smoke pipe (2), the number of main engine smoke pipe (2) is set to two at least, the outlet end of main engine smoke pipe (2) is provided with the bending section (5), the outlet end of bending section (5) is sealed and fixedly installed with fixed connector (4), the outlet end of fixed connector (4) is sealed and installed with branch smoke pipe (6), the outlet end of branch smoke pipe (6) is provided with auxiliary engine smoke pipe (3) with the oblique angle intercommunication of setting, branch smoke pipe (6) is provided with damper (7) along its smoke direction, and damper (7) number is set to two at least, and damper (7) is equidistant and parallel between the interval and sets up.
2. A marine exhaust pipe outlet end improvement according to claim 1, wherein, The bending angle direction of bending section (5) is bent towards the smoke direction of auxiliary engine smoke pipe (3) and is bent.
3. A boat exhaust pipe outlet end improvement according to claim 1, wherein The outlet end of bending section (5) and the outlet end of branch smoke pipe (6) are arranged on the same axis.
4. A boat exhaust pipe outlet end improvement according to claim 1, wherein The inlet and outlet ends of fixed connector (4) are provided with sealing flanges (11), the inlet end of branch smoke pipe (6) and the outlet end of bending section (5) are provided with sealing flanges (11), and fixed connector (4) is sealed and installed between branch smoke pipe (6) and bending section (5) by the fixed installation between sealing flanges (11).
5. A boat exhaust pipe outlet end improvement according to claim 2, wherein Branch smoke pipe (6) is provided with two dampers (7) along its smoke direction.
6. A boat exhaust pipe outlet end improvement according to claim 1, wherein The number of main engine smoke pipe (2) evenly connected and distributed on smoke pipe top bin (1) is three.
Citation Information
Patent Citations
Ventilation and smoke exhaust outlet device for ship
CN219277778U