Scavenging pipe of steamship diesel engine

Abstract

The utility model discloses a steamship diesel engine scavenging pipe which comprises a scavenging pipeline, a heat insulation cover is arranged on the outer side of the scavenging pipeline in a sleeved mode, one end of the heat insulation cover is rotationally connected through a hinge, the other end of the heat insulation cover is fixed through a bolt, heat insulation cotton is filled in the heat insulation cover, and a cooling fan is installed on the inner side of the left end of the heat insulation cover. A temperature sensor is installed on the inner wall of the scavenging pipeline, an alarm is installed on the outer side of the scavenging pipeline, and a heat dissipation column is installed on the outer wall of the scavenging pipeline in a penetrating mode. According to the ship diesel engine scavenging pipe, heat dissipation columns are used for assisting in conducting heat dissipation on hot air flow, meanwhile, a heat dissipation fan is matched with blowing of the heat dissipation columns, cooling of the heat dissipation columns is accelerated, and therefore cooling of the hot air flow is accelerated, cold water is divided into the connecting pipe through a first water collecting pipe by means of a water inlet pipe and then divided into the heat dissipation columns, heat is absorbed, and the heat dissipation efficiency is improved. And the hot air is cooled again, and the cooled airflow enters the air cylinder, so that parts in the air cylinder are prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of scavenging pipes for ship diesel engines, in particular to scavenging pipes for ship diesel engines. Background Art

[0002] The scavenge air pipe of a ship diesel engine is an important component. When the diesel engine is working, the compressed air enters the scavenge air box from the supercharger outlet through the air duct and the air cooler. When the scavenge air port is opened, it enters the cylinder through the scavenge air port and sweeps the exhaust gas in the cylinder out from the exhaust port.

[0003] Among them, the publication number CN206205973U is a heat insulation cover for a scavenging pipe for a marine diesel engine, comprising a heat insulation cover body, which is formed by a pair of heat insulation half shells buckled together, and the heat insulation cover body comprises a small-diameter heat insulation cover body coated on the outer peripheral surface of the scavenging pipe and a large-diameter heat insulation cover body coated on the outer peripheral surface of the air inlet of the scavenging treatment device, one end of the small-diameter heat insulation cover body is connected to the large-diameter heat insulation cover body, and an arc-shaped clamping edge is provided at the other end of the small-diameter heat insulation cover body, and a clamping groove clamped on the positioning member is formed between the arc-shaped clamping edge and the large-diameter heat insulation cover body, and a first heat insulation cotton is provided between the inner surface of the small-diameter heat insulation cover body and the outer peripheral surface of the scavenging pipe, and a second heat insulation cotton is provided between the inner surface of the large-diameter heat insulation cover body and the outer peripheral surface of the air inlet of the scavenging treatment device. The utility model has reasonable design, simple structure, not easy to move, good heat insulation effect, easy maintenance and replacement, and reduces the labor intensity of maintenance personnel.

[0004] The above-mentioned prior art simply utilizes a heat insulation cover to protect and insulate the scavenging pipe, and cannot assist in dissipating the hot air flow in the scavenging pipe. When the hot flow enters the cylinder, it will damage the components in the cylinder. Therefore, we propose a ship diesel engine scavenging pipe to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a scavenging pipe for a ship diesel engine, so as to solve the problem in the current market that the heat airflow in the scavenging pipe cannot be assisted to dissipate, and the heat flow enters the cylinder, causing damage to the parts in the cylinder.

[0006] To achieve the above object, the utility model provides the following technical solution: a scavenging pipe for a ship diesel engine, comprising a scavenging pipe, the outer side of the scavenging pipe is sleeved with a heat insulation cover, one end of the heat insulation cover is rotatably connected by a hinge, the other end of the heat insulation cover is fixed by bolts, the interior of the heat insulation cover is filled with heat insulation cotton, and a heat dissipation fan is installed on the inner side of the left end of the heat insulation cover;

[0007] A temperature sensor is installed on the inner wall of the scavenging air pipeline, an alarm is installed on the outer side of the scavenging air pipeline, and a heat dissipation column is installed through the outer wall of the scavenging air pipeline.

[0008] Preferably, the outer sides of the ends of the purge pipes are respectively sleeved with a first collecting pipe and a second collecting pipe, the first collecting pipe is connected with a water inlet pipe and a connecting pipe, one end of the connecting pipe is connected with the second collecting pipe, and the second collecting pipe is connected with a drain pipe.

[0009] Preferably, the heat insulation cover is an arc-shaped structure, and cooling fans are distributed at equal angles on one end of the heat insulation cover, so that the heat insulation cover can be conveniently installed on the outside of the scavenging air duct to provide thermal insulation protection thereto, and the cooling fan can be used to blow and cool the extended end of the cooling column.

[0010] Preferably, the interior of the heat dissipation column is a hollow structure, and the heat dissipation column and the connecting pipe are interconnected, so that the heat dissipation column can conduct heat, and the connecting pipe can be used to divert cold water into the heat dissipation column to assist in rapid heat dissipation.

[0011] Preferably, the first water collecting pipe and the second water collecting pipe are both of annular structure, and the first water collecting pipe and the second water collecting pipe are interconnected through a connecting pipe, so that the circulation of water can be realized and the cold water can be heated for use.

[0012] Preferably, the connecting pipe and the heat insulation cover are fitted together, and heat dissipation columns are evenly spaced on the connecting pipe to avoid blocking the installation of the heat insulation cover, and the evenly distributed heat dissipation columns are used to quickly conduct and cool the heat.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The scavenging pipe of the ship diesel engine is enclosed by a rotatable heat insulation cover, which is convenient for the assembly of the heat insulation cover, and the inside of the heat insulation cover is evenly filled with heat insulation cotton, which can prevent heat from being conducted to the outside, prevent heat from damaging electrical appliances near the scavenging pipe, and prevent heat from burning workers, thereby improving the safety of the surrounding area;

[0015] (2) The scavenging pipe of the ship diesel engine uses a heat sink to assist in the conduction and heat dissipation of the hot air flow. At the same time, the heat sink is blown by the heat sink fan to accelerate the cooling of the heat sink, thereby accelerating the cooling of the hot air flow. The water inlet pipe is used to divert cold water through the first water collecting pipe to the connecting pipe, and then diverted to the heat sink to absorb the heat and cool the hot air again. The cooled air flow enters the cylinder to avoid damaging the internal parts of the cylinder.

[0016] (3) The cold water in the scavenging pipe of the diesel engine of the ship enters the heat dissipation column through the water inlet pipe, the first water collecting pipe and the water inlet pipe. While cooling the heat dissipation column, it can also absorb heat and heat up by itself. The water is discharged from the drain pipe to supply hot water to the personnel on the ship, thereby utilizing the heat to achieve energy saving and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the heat insulation cover of the utility model;

[0019] Figure 3 This is a schematic diagram of the scavenging pipeline structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the heat dissipation column of the utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the heat insulation cover of the utility model;

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the heat dissipation column of the utility model.

[0023] In the figure: 1. Scavenging air duct; 2. Heat insulation cover; 3. Heat insulation cotton; 4. Cooling fan; 5. Cooling column; 6. Temperature sensor; 7. Alarm; 8. First water collecting pipe; 9. Water inlet pipe; 10. Connecting pipe; 11. Second water collecting pipe; 12. Drain pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6 The utility model provides the following technical solutions: a scavenging pipe for a ship diesel engine, comprising a scavenging pipe 1, a heat insulation cover 2 is sleeved on the outer side of the scavenging pipe 1, one end of the heat insulation cover 2 is rotatably connected by a hinge, and the other end of the heat insulation cover 2 is fixed by bolts, the interior of the heat insulation cover 2 is filled with heat insulation cotton 3, and a heat dissipation fan 4 is installed on the inner side of the left end of the heat insulation cover 2; a connecting pipe 10 and the heat insulation cover 2 are fitted to each other, and heat dissipation columns 5 are evenly spaced on the connecting pipe 10 to avoid blocking the installation of the heat insulation cover 2, and the evenly distributed heat dissipation columns 5 are used to quickly conduct and cool the heat;

[0026] The airflow is transported through the purge pipe 1. A heat insulation cover 2 is sleeved on the outside of the purge pipe 1. One end of the heat insulation cover 2 can be rotated by a hinge, and the other end can be fixed by bolts. The heat insulation cover 2 can be driven to rotate and opened, and then sleeved on the outside of the purge pipe 1. Then, the heat insulation cover 2 is rotated and closed, so that the heat insulation cover 2 surrounds the purge pipe 1. The heat insulation cover 2 is locked with bolts to ensure the stable assembly of the heat insulation cover 2. Therefore, the heat insulation cover 2 can be conveniently installed on the outside of the purge pipe 1. Heat insulation cotton 3 is evenly arranged inside the heat insulation cover 2. With the heat insulation cotton 3 filled inside, the heat of the purge pipe 1 can be isolated to prevent the heat from burning external electrical equipment or staff, and the safety around the purge pipe 1 can be improved.

[0027] Furthermore, a temperature sensor 6 is installed on the inner wall of the purge pipe 1, an alarm 7 is installed on the outer side of the purge pipe 1, and a heat dissipation column 5 is installed through the outer wall of the purge pipe 1; the outer sides of the ends of the purge pipe 1 are respectively sleeved with a first water collecting pipe 8 and a second water collecting pipe 11, the first water collecting pipe 8 is connected with a water inlet pipe 9 and a connecting pipe 10, one end of the connecting pipe 10 is connected with the second water collecting pipe 11, and the second water collecting pipe 11 is connected with a drain pipe 12; the heat insulation cover 2 is an arc-shaped structure, and heat dissipation fans 4 are distributed at equal angles on one end of the heat insulation cover 2, so that the heat insulation cover 2 can be conveniently sleeved and installed on the outside of the purge pipe 1 to provide heat insulation protection therefor, and the heat dissipation fan 4 is used to blow and cool the extended end of the heat dissipation column 5;

[0028] Furthermore, the interior of the heat dissipation column 5 is a hollow structure, and the heat dissipation column 5 and the connecting pipe 10 are interconnected, so that the heat dissipation column 5 can conduct heat, and the connecting pipe 10 is used to divert cold water into the heat dissipation column 5 to assist in rapid heat dissipation; the first water collecting pipe 8 and the second water collecting pipe 11 are both annular structures, and the first water collecting pipe 8 and the second water collecting pipe 11 are interconnected through the connecting pipe 10, so that the circulation of water can be realized, and the cold water can be heated for use;

[0029] The heat dissipation columns 5 evenly installed on the wall of the scavenging duct 1 can assist in conducting the heat of the air flow and conduct it to the inner side of the heat insulation cover 2. At the same time, the heat dissipation fan 4 is connected to the power supply, and the heat dissipation fan 4 extends one end of the side wall of the scavenging duct 1 toward the heat dissipation column 5. The heat dissipation fan 4 blows the end of the heat dissipation column 5 to accelerate the dissipation of heat. At the same time, the water inlet pipe 9 can be connected to the external cold water, and the drain pipe 12 can be connected to the external hot water pipe. The cold water is diverted to the connecting pipe 10 through the first water collecting pipe 8, and then diverted to the heat dissipation column 5 to absorb the heat and cool the hot air again. The cold water is heated and enters the second water collecting pipe 11, and is discharged from the drain pipe 12 for use, and the heat is utilized. The cooled air flow enters the cylinder to avoid damaging the internal parts of the cylinder. The temperature sensor 6 can monitor the temperature of the flowing air flow. If the temperature continues to be high, the signal can be transmitted to the controller. The controller controls the alarm 7 to alarm, so that the staff can perform maintenance inspection. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A scavenging pipe for a ship diesel engine, comprising a scavenging pipe (1), characterized in that: The outer side of the scavenging air pipe (1) is provided with a heat insulation cover (2), one end of the heat insulation cover (2) is rotatably connected by a hinge, and the other end of the heat insulation cover (2) is fixed by bolts, the interior of the heat insulation cover (2) is filled with heat insulation cotton (3), and a heat dissipation fan (4) is installed on the inner side of the left end of the heat insulation cover (2); A temperature sensor (6) is installed on the inner wall of the purge air duct (1), an alarm (7) is installed on the outer side of the purge air duct (1), and a heat dissipation column (5) is installed through the outer wall of the purge air duct (1).

2. The scavenging pipe for a ship diesel engine according to claim 1, characterized in that: A first water collecting pipe (8) and a second water collecting pipe (11) are respectively sleeved on the outer side of the end of the scavenging pipe (1); the first water collecting pipe (8) is connected to a water inlet pipe (9) and a connecting pipe (10); one end of the connecting pipe (10) is connected to the second water collecting pipe (11); and the second water collecting pipe (11) is connected to a drain pipe (12).

3. The scavenging pipe for a ship diesel engine according to claim 1, characterized in that: The heat insulation cover (2) is an arc-shaped structure, and heat dissipation fans (4) are distributed at equal angles on one end of the heat insulation cover (2).

4. The scavenging pipe for a ship diesel engine according to claim 2, characterized in that: The interior of the heat dissipation column (5) is a hollow structure, and the heat dissipation column (5) and the connecting pipe (10) are connected to each other.

5. The scavenging pipe for a ship diesel engine according to claim 2, characterized in that: The first water collecting pipe (8) and the second water collecting pipe (11) are both annular structures, and the first water collecting pipe (8) and the second water collecting pipe (11) are connected to each other via a connecting pipe (10).

6. The scavenging pipe for a ship diesel engine according to claim 2, characterized in that: The connecting pipe (10) and the heat insulation cover (2) are fitted together, and heat dissipation columns (5) are distributed at equal intervals on the connecting pipe (10).

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