Ship exhaust pipe cooling structure

Abstract

The utility model belongs to a ship exhaust pipe cooling structure in the technical field of ship engines. The casing pipe (2) is installed in an opening formed in the watertight bulkhead (1), the exhaust pipe comprises an exhaust pipe penetrating section (3), the exhaust pipe penetrating section (3) is located on the inner ring of the casing pipe (2), the exhaust pipe penetrating section (3) penetrates through an end plate (4) of the casing pipe (2), a cooling water inlet (5) and a cooling water outlet (6) are formed in the casing pipe (2), and the casing pipe (2) is connected with the watertight bulkhead (1) through a web (7). The ship exhaust pipe cooling structure is simple in structure, the exhaust pipe penetrating through a watertight bulkhead or a deck can be effectively cooled, the heat transfer influence on the watertight bulkhead or the deck is reduced, the watertight bulkhead or the deck is prevented from being damaged for a short time, the maintenance cost is reduced, and the service life of the ship exhaust pipe is prolonged. And meanwhile, the sleeve and the exhaust pipe penetrating section can be replaced conveniently in a labor-saving mode, and the ship use requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship engines, and more specifically, relates to a cooling structure for a ship exhaust pipe. Background Art

[0002] As a means of transportation, most existing inland river ships do not have engine room sheds, and the exhaust pipes of ship main engines and generator sets need to pass through watertight bulkheads and decks. The exhaust of the exhaust pipes of ship main engines and generator sets is at a high temperature, and long-term operation will damage the watertight bulkheads and decks passed through. Watertight bulkheads and decks are not easy to replace, so there are technical defects.

[0003] In the prior art, there is a technology with the name of "a stern exhaust pipe structure for a marine engine" and a publication number of "CN116498425A". This technology discloses a stern exhaust pipe structure for a marine engine, including a cooling pipe and a guiding pipe. The guiding pipe is arranged at one end of the cooling pipe. The cooling pipe is arranged inside the stern, and the guiding pipe is arranged outside the stern; the cooling pipe has a hollow inner cavity, and a cooling cavity is arranged on the outer wall of the cooling pipe; a water spray orifice plate is arranged at the other end of the cooling cavity; the guiding pipe includes a shrimp bend and a straight pipe. One end of the shrimp bend is connected to the cooling pipe, and the other end is connected to the straight pipe; a flange is arranged between the shrimp bend and the cooling pipe; adopting the above technical solution, since a cooling cavity is arranged on the outer wall of the cooling pipe and a flange is arranged between the shrimp bend and the cooling pipe, the stern exhaust pipe and the hull are designed separately, which is convenient for installation and maintenance, improves the heat transfer effect of the stern exhaust pipe to prevent deformation, ensures the safety of ship navigation, and improves the reliability of use of the stern exhaust pipe structure.

[0004] However, this technology does not involve the technical problems and technical solutions of this application. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: aiming at the deficiencies of the prior art, to provide a ship exhaust pipe cooling structure with a simple structure, which can effectively cool and lower the temperature of the exhaust pipe passing through the watertight bulkhead or deck, reduce the influence of heat transfer on the watertight bulkhead or deck, avoid short-term damage to the watertight bulkhead or deck, reduce the maintenance cost, and at the same time can conveniently and labor-savingly replace the sleeve and the through section of the exhaust pipe to meet the use requirements of the ship.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the utility model is:

[0007] The utility model relates to a cooling structure for a ship exhaust pipe. A casing is installed in an opening provided on a watertight bulkhead. The exhaust pipe includes an exhaust pipe penetrating section which is located inside the inner circle of the casing and penetrates through the end plates of the casing. A cooling water inlet and a cooling water outlet are provided on the casing, and the casing and the watertight bulkhead are connected by webs.

[0008] The webs include a first web and a second web. A first groove is provided at the lower part of the first web, and a second groove is provided at the upper part of the second web.

[0009] A ring groove is provided on the outer circle of the casing. The end plates include a first end plate and a second end plate, and the exhaust pipe penetrating section penetrates through the first end plate and the second end plate.

[0010] The first web is connected to the watertight bulkhead by a plurality of bolts, and the second web is connected to the watertight bulkhead by a plurality of bolts.

[0011] A first flange is provided at one end of the exhaust pipe penetrating section, and a second flange is provided at the other end of the exhaust pipe penetrating section.

[0012] The cooling water inlet and the cooling water outlet are respectively communicated with a cooling water tank.

[0013] An inlet water pump is provided between the cooling water inlet and the cooling water tank.

[0014] The exhaust pipe further includes a first exhaust pipe section and a second exhaust pipe section. The first exhaust pipe section is located on one side of the watertight bulkhead, and the second exhaust pipe section is located on the other side of the watertight bulkhead.

[0015] The flange of the first exhaust pipe section is connected to the first flange, and the flange of the second exhaust pipe section is connected to the second flange.

[0016] Adopting the technical solution of the utility model, the working principle and the beneficial effects are as described below:

[0017] The cooling structure of the exhaust pipe of the ship described in the present utility model, when the structure is set up, according to the layout of the exhaust pipe, it is necessary to pass through the watertight bulkhead or deck. Therefore, an opening is provided on the watertight bulkhead, and a sleeve is installed in the opening, that is, the sleeve can penetrate the watertight bulkhead. The exhaust pipe includes an exhaust pipe penetration section, and the exhaust pipe penetration section is located inside the inner circle of the sleeve. The exhaust pipe penetration section penetrates the end plate of the sleeve, that is, a fixed and sealed structure is formed between the exhaust pipe penetration section and the sleeve, and a cooling cavity is formed between the two. A cooling water inlet and a cooling water outlet are provided on the sleeve. The cooling water enters the cooling cavity from the cooling water inlet and then flows out of the cooling cavity from the cooling water outlet to achieve the cooling of the exhaust pipe penetration section, avoiding the high temperature transfer of the exhaust pipe and damaging the watertight bulkhead. The sleeve and the watertight bulkhead are connected by a web. The web includes a first web and a second web. A first groove is provided at the lower part of the first web, and a second groove is provided at the upper part of the second web. In this way, the first web and the second web can be respectively connected to the watertight bulkhead. After connection, the first web and the second web can reliably clamp the sleeve to achieve the fixation of the sleeve. When the penetration cooling component formed by the sleeve and the exhaust pipe penetration section needs to be replaced due to long-term use, only the first web and the second web need to be disassembled and washed, and the first web and the second web can be taken away, that is, the penetration cooling component can be taken away from the opening of the watertight bulkhead, and the disassembly is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following briefly describes the content expressed by each drawing in this specification and the marks in the drawings:

[0019] Figure 1 It is a schematic layout structure diagram of the exhaust pipe of the ship described in the present utility model;

[0020] Figure 2 It is a schematic structural diagram of the cooling structure of the exhaust pipe of the ship described in the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the web of the cooling structure of the exhaust pipe of the ship described in the present utility model;

[0022] Figure 4 It is a schematic layout structure diagram of the sleeve and the exhaust pipe penetration section of the cooling structure of the exhaust pipe of the ship described in the present utility model;

[0023] The marks in the drawings are respectively: 1, watertight bulkhead; 2, sleeve; 3, exhaust pipe penetration section; 4, end plate; 5, cooling water inlet; 6, cooling water outlet; 7, web; 8, first web; 9, second web; 10, first groove; 11, second groove; 12, annular groove; 13, first end plate; 14, second end plate; 15, bolt; 16, first flange; 17, second flange; 18, first exhaust pipe section; 19, second exhaust pipe section; 20, generator set. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will further elaborate in detail on the specific implementation manners of the present utility model, such as the shapes, structures of various components involved, the mutual positions and connection relationships between various parts, the functions and working principles of various parts, etc., with reference to the accompanying drawings and through the description of embodiments:

[0025] As shown in the Figure 1 - accompanying Figure 4 drawings, the present utility model is a cooling structure for a ship exhaust pipe. A casing 2 is installed in an opening provided on a watertight bulkhead 1. The exhaust pipe includes an exhaust pipe penetrating section 3, and the exhaust pipe penetrating section 3 is located inside the inner circle of the casing 2. The exhaust pipe penetrating section 3 penetrates through the end plate 4 of the casing 2. A cooling water inlet 5 and a cooling water outlet 6 are provided on the casing 2. The casing 2 and the watertight bulkhead 1 are connected by a web 7. For the above structure, in view of the deficiencies in the prior art, an improved technical solution is proposed. When setting up the structure, according to the layout of the exhaust pipe, it is necessary to penetrate through the watertight bulkhead (or deck). Therefore, an opening is provided on the watertight bulkhead 1, and the casing 2 is installed in the opening, that is, the casing can penetrate through the watertight bulkhead. The exhaust pipe includes an exhaust pipe penetrating section 3, and the exhaust pipe penetrating section 3 is located inside the inner circle of the casing 2. The exhaust pipe penetrating section 3 penetrates through the end plate 4 of the casing 2, that is, a fixed and sealed structure is formed between the exhaust pipe penetrating section and the casing, and a cooling cavity is formed between the two. A cooling water inlet 5 and a cooling water outlet 6 are provided on the casing 2. Cooling water enters the cooling cavity from the cooling water inlet 5 and then flows out of the cooling cavity from the cooling water outlet 6, realizing the cooling of the exhaust pipe penetrating section 3, avoiding the high temperature transfer of the exhaust pipe and damaging the watertight bulkhead 1. The casing 2 and the watertight bulkhead 1 are connected by a web 7. The web 7 includes a first web 8 and a second web 9. A first groove 10 is provided at the lower part of the first web 8, and a second groove 11 is provided at the upper part of the second web 9. In this way, the first web 8 and the second web 9 can be respectively connected to the watertight bulkhead 1. After connection, the first web 8 and the second web 9 can reliably clamp the casing 2, realizing the fixation of the casing 2. The diameter of the opening of the watertight bulkhead needs to be larger than the outermost diameter of the casing (including the cooling water inlet and the cooling water outlet), so that the penetrating cooling component formed by the casing 2 and the exhaust pipe penetrating section 3 can conveniently enter and exit the opening, and can be conveniently placed and taken away. When the penetrating cooling component needs to be replaced due to long-term use, only the bolts of the first web 8 and the second web 9 need to be disassembled and washed, and the first web 8 and the second web 9 are loosened, and the first web 8 and the second web 9 can be taken away, that is, the penetrating cooling component can be taken away from the opening of the watertight bulkhead 1, and the disassembly is convenient. The cooling structure for a ship exhaust pipe of the present utility model has a simple structure, can effectively cool and lower the temperature of the exhaust pipe passing through the watertight bulkhead or deck part, reduce the influence of heat transfer on the watertight bulkhead or deck, avoid the short-term damage of the watertight bulkhead or deck, reduce the maintenance cost, and at the same time can conveniently and labor-savingly replace the casing and the exhaust pipe penetrating section, meeting the use requirements of the ship.

[0026] A ring groove 12 is provided on the outer circumference of the casing 2. The end plate 4 includes a first end plate 13 and a second end plate 14. The through-section 3 of the exhaust pipe penetrates through the first end plate 13 and the second end plate 14. In the above structure, the first end plate and the second end plate are used to fix the casing 2 and facilitate the formation of a cooling cavity at the same time.

[0027] The first web 8 is connected to the watertight bulkhead 1 by a plurality of bolts 15, and the second web 9 is connected to the watertight bulkhead 1 by a plurality of bolts 15. In the above structure, the first web 8 is reliably connected to the watertight bulkhead by a plurality of bolts. The second web 9 is reliably connected to the watertight bulkhead by a plurality of bolts.

[0028] A first flange 16 is provided at one end of the through-section 3 of the exhaust pipe, and a second flange 17 is provided at the other end of the through-section 3 of the exhaust pipe. The exhaust pipe further includes a first exhaust pipe section 18 and a second exhaust pipe section 19. The first exhaust pipe section 18 is located on one side of the watertight bulkhead 1, and the second exhaust pipe section 19 is located on the other side of the watertight bulkhead 1. The flange of the first exhaust pipe section 18 is connected to the first flange 16, and the flange of the second exhaust pipe section 19 is connected to the second flange 17. In the above structure, the first exhaust pipe section 18 is reliably connected through the first flange, and the second exhaust pipe section 19 is reliably connected through the second flange, so that the entire exhaust pipe is discharged from the position connecting the generator set to the outside of the hull.

[0029] The cooling water inlet 5 and the cooling water outlet 6 are respectively communicated with the cooling water tank. An inlet water pump is provided between the cooling water inlet 5 and the cooling water tank. In the above structure, the cooling water tank is used to store cooling water. Through the water pump, the pumping and circulation of the cooling water can be realized, and continuous cooling can be achieved.

[0030] For the exhaust pipe cooling structure of the present utility model, it is necessary to pass through the watertight bulkhead (or deck). Therefore, an opening is provided on the watertight bulkhead 1, and a sleeve 2 is installed in the opening, that is, the sleeve can penetrate the watertight bulkhead. The exhaust pipe includes an exhaust pipe penetration section 3, and the exhaust pipe penetration section 3 is located inside the inner circle of the sleeve 2. The exhaust pipe penetration section 3 penetrates the end plate 4 of the sleeve 2, that is, a fixed and sealed structure is formed between the exhaust pipe penetration section and the sleeve, and a cooling cavity is formed between the two. A cooling water inlet 5 and a cooling water outlet 6 are provided on the sleeve 2. The cooling water enters the cooling cavity from the cooling water inlet 5 and then flows out of the cooling cavity from the cooling water outlet 6 to achieve the cooling of the exhaust pipe penetration section 3, avoiding the high temperature transfer of the exhaust pipe and damaging the watertight bulkhead 1. The sleeve 2 and the watertight bulkhead 1 are connected by a web 7. The web 7 includes a first web 8 and a second web 9. A first groove 10 is provided at the lower part of the first web 8, and a second groove 11 is provided at the upper part of the second web 9. In this way, the first web 8 and the second web 9 can be respectively connected to the watertight bulkhead 1. After connection, the first web 8 and the second web 9 can reliably clamp the sleeve 2 to fix the sleeve 2. When the penetration cooling component formed by the sleeve 2 and the exhaust pipe penetration section 3 needs to be replaced due to long-term use, only the first web 8 and the second web 9 need to be disassembled and cleaned, and the first web 8 and the second web 9 can be removed, that is, the penetration cooling component can be removed from the opening of the watertight bulkhead 1, and the disassembly is convenient.

[0031] The present utility model has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above-mentioned manner. As long as various improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A cooling structure for a ship exhaust pipe, characterized in that: A casing (2) is installed in the opening provided on the watertight bulkhead (1). The exhaust pipe includes an exhaust pipe penetration section (3), and the exhaust pipe penetration section (3) is located inside the inner ring of the casing (2). The exhaust pipe penetration section (3) penetrates through the end plate (4) of the casing (2). A cooling water inlet (5) and a cooling water outlet (6) are provided on the casing (2). The casing (2) and the watertight bulkhead (1) are connected by a web (7).

2. The cooling structure of the ship exhaust pipe according to claim 1, characterized in that: The web (7) includes a first web (8) and a second web (9). A first groove (10) is provided at the lower part of the first web (8), and a second groove (11) is provided at the upper part of the second web (9).

3. The cooling structure of the ship exhaust pipe according to claim 1 or 2, characterized in that: A ring groove (12) is provided on the outer ring of the casing (2). The end plate (4) includes a first end plate (13) and a second end plate (14). The exhaust pipe penetration section (3) penetrates through the first end plate (13) and the second end plate (14).

4. The cooling structure of the exhaust pipe of a ship according to claim 2, characterized in that: The first web (8) is connected to the watertight bulkhead (1) by a plurality of bolts (15), and the second web (9) is connected to the watertight bulkhead (1) by a plurality of bolts (15).

5. The cooling structure of a ship exhaust pipe according to claim 1 or 2, characterized in that: A first flange (16) is provided at one end of the exhaust pipe penetration section (3), and a second flange (17) is provided at the other end of the exhaust pipe penetration section (3).

6. The cooling structure of the ship exhaust pipe according to claim 1 or 2, characterized in that: The cooling water inlet (5) and the cooling water outlet (6) are respectively communicated with a cooling water tank.

7. The cooling structure of the ship exhaust pipe according to claim 6, characterized in that: An inlet water pump is provided between the cooling water inlet (5) and the cooling water tank.

8. The cooling structure of the ship exhaust pipe according to claim 5, wherein: The exhaust pipe further includes a first exhaust pipe section (18) and a second exhaust pipe section (19). The first exhaust pipe section (18) is located on one side of the watertight bulkhead (1), and the second exhaust pipe section (19) is located on the other side of the watertight bulkhead (1).

9. The cooling structure of the ship exhaust pipe according to claim 8, characterized in that: The flange of the first exhaust pipe section (18) is connected to the first flange (16), and the flange of the second exhaust pipe section (19) is connected to the second flange (17).

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