CN219034855U

CN219034855U - Novel fresh water cooling circulation system of ship diesel engine unit

Info

Publication number: CN219034855U
Application number: CN202221901794.5U
Authority: CN
Inventors: 杨金亮; 孙楠; 赵媛媛
Original assignee: Singtong Marine & Offshore Pte Ltd
Current assignee: Singtong Marine & Offshore Pte Ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2023-05-16
Anticipated expiration: 2032-07-22

Abstract

The utility model provides a novel fresh water cooling circulation system of a ship diesel engine unit, which comprises a diesel engine unit, a first fresh water cabin, a second fresh water cabin and a buffer water cabinet; the first fresh water cabin is provided with a first suction inlet which is communicated with a water inlet pipe of the diesel engine set through a first suction pipe, and a first check valve is arranged on the first suction pipe; the water outlet of the diesel engine unit is communicated with the buffer water tank through a drain pipe; the buffer water tank is communicated with a second fresh water cabin through an overflow pipe, the second fresh water cabin is provided with a second suction inlet, the second suction inlet is communicated with a water inlet pipe of the diesel engine unit through a second suction pipe, and a second check valve is arranged on the second suction pipe. Under the design, the diesel engine unit takes water from the first fresh water cabin, and fresh water entering the diesel engine unit takes away superfluous heat, so that the diesel engine unit is cooled. The heated fresh water is discharged into the buffer water tank through the drain pipe. Fresh water in the buffer water tank flows into the second fresh water tank through the overflow pipe, so that closed circulation is realized.

Description

Novel fresh water cooling circulation system of ship diesel engine unit

Technical Field

The utility model relates to the field of ship manufacturing, in particular to a novel fresh water cooling circulation system of a ship diesel unit.

Background

Some mechanical devices in diesel powered devices continuously generate heat during normal operation, and the heat must be dissipated in time, otherwise, the temperature of the heating element will continue to rise, so that the allowable limit is exceeded, and the working reliability of the mechanical device is damaged. The cooling pipe system is used for cooling required heat dissipation equipment by using enough cooling medium (river water and sea water) to take away superfluous heat, so that the cooling pipe system can work safely and reliably in a normal temperature range. The cooling water system is divided into an open type cooling mode and a closed type cooling mode, and the two cooling modes need to use outboard water as a cooling area medium, however, the quality of river water is poor, various chloride salts are contained in seawater, the cooling space can be blocked, corrosion and deposition can be generated on parts, scale is generated, the heat efficiency is reduced, and the cooling effect is not ideal. In addition, a cooler, a seawater cooling pump and a corrosion-resistant seawater pipeline are also required, and the investment is high. The existing cooler needs to clean and replace the corroded sealing ring regularly, and the maintenance amount is large.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a novel ship diesel engine set fresh water cooling circulation system, which solves one or more of the technical problems.

According to one aspect of the utility model, a novel marine diesel unit fresh water cooling circulation system is provided, which comprises a diesel unit, a first fresh water cabin, a second fresh water cabin and a buffer water tank; the first fresh water cabin is provided with a first suction inlet which is communicated with a water inlet pipe of the diesel engine set through a first suction pipe, and a first check valve is arranged on the first suction pipe; the water outlet of the diesel engine unit is communicated with the buffer water tank through a drain pipe; the buffer water tank is communicated with the second fresh water cabin through an overflow pipe, the second fresh water cabin is provided with a second suction inlet, the second suction inlet is communicated with a water inlet pipe of the diesel engine unit through a second suction pipe, and a second check valve is arranged on the second suction pipe. Under the design, the diesel engine unit takes water from the first fresh water cabin, and fresh water entering the diesel engine unit takes away superfluous heat, so that the diesel engine unit is cooled. The heated fresh water is discharged into the buffer water tank through the drain pipe. Fresh water in the buffer water tank flows into the second fresh water tank through the overflow pipe, so that closed circulation is realized.

In some embodiments, the buffer water tank further comprises a blower, wherein cold air generated by the blower is input into the buffer water tank through an air supply pipe. The blower blows air into the buffer water tank through the air supply pipe, and cools the warmed fresh water in the buffer water tank.

In some embodiments, one end of the drain pipe extends into the buffer water tank, the end is arched, and the height of the water outlet is higher than the liquid level in the buffer water tank.

In some embodiments, an end of the air supply pipe, which is not connected with the blower, extends into the buffer water tank, and the height of the end is matched with the height of the water outlet of the water discharge pipe. When water flows out from the drain pipe, the water is blown by cold air, so that the effect of timely cooling is realized.

In some embodiments, the air outlet direction of the air supply pipe after extending into the buffer water tank is 30-60 degrees with the water outlet direction of the water drain pipe in the buffer water tank. The design enlarges the release area between the cold air from the air supply pipe and the water from the drain pipe, and improves the cooling effect.

In some embodiments, the first fresh water compartment and the second fresh water compartment are in communication via a communication pipe. And water in the second fresh water cabin can flow to the first fresh water cabin to realize heat exchange.

In some embodiments, the bulkhead of the buffer water tank is provided with a heat dissipation hole, and the height of the heat dissipation hole is higher than the water outlet height of the drain pipe in the buffer water tank. The hot air of the water in the buffer water tank can be dispersed from the heat dissipation holes.

In some embodiments, the heat dissipation holes and/or the air inlet of the blower are/is provided with a filter screen. Preventing dirt or mice from entering the fresh water cooling circulation system.

In some embodiments, the buffer water tank is provided with a closable administration port. The water quality treatment is convenient.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

fig. 1 is a schematic structural view of an embodiment of the present utility model.

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

Referring to fig. 1, a novel fresh water cooling circulation system of a ship diesel engine unit comprises a diesel engine unit 10, a first fresh water tank 20, a second fresh water tank 30 and a buffer water tank 40; wherein, the first fresh water compartment 20 is provided with a first suction inlet 21, the first suction inlet 21 is communicated with a water inlet pipe of the diesel engine set 10 through a first suction pipe 61, and the first suction pipe 61 is provided with a first check valve 611; the water outlet of the diesel engine set 10 is communicated with the buffer water tank 40 through a water drain pipe 63; buffer tank 40 communicates with second fresh water compartment 30 via overflow pipe 64, second fresh water compartment 30 is provided with second suction port 31, second suction port 31 communicates with the inlet pipe of diesel engine set 10 via second suction pipe 62, and second suction pipe 62 is provided with second check valve 621. With this design, the diesel engine unit 10 takes water from the first fresh water tank 20, and fresh water entering the diesel engine unit 10 takes away excessive heat, thereby cooling the diesel engine unit 10. The warmed fresh water is discharged into the buffer tank 40 through the drain pipe 63. Fresh water in buffer tank 40 flows into second fresh water compartment 30 through overflow tube 64, thereby circulating in a closed manner.

The water temperature in the buffer water tank 40 is high, and therefore, it is necessary to cool the water, so that a blower 50 may be further provided, and cold air generated by the blower 50 is input into the buffer water tank 40 through an air supply pipe 51. The blower 50 blows air into the buffer tank 40 through the air-blowing pipe 51, and cools the warmed fresh water in the buffer tank 40.

One end of the drain pipe 63 extends into the buffer tank 40, and the end is arched and bent, and the height of the water outlet is higher than the liquid level in the buffer tank 40.

In order to achieve that the water flow is cooled from the beginning of entering the buffer water tank 40, the end of the air supply pipe 51, which is not connected with the blower 50, extends into the buffer water tank 40, and the height of the end is matched with the height of the water outlet of the drain pipe 63. The water is blown by cold air when flowing out from the drain pipe 63, realizing the effect of timely cooling.

The air outlet direction of the air supply pipe 51 after extending into the buffer water tank 40 is 30-60 degrees with the water outlet direction of the drain pipe 63 in the buffer water tank 40. This design enlarges the release area between the cold air from the air supply pipe 51 and the water from the water discharge pipe 63, and improves the cooling effect.

The first fresh water tank 20 and the second fresh water tank 30 are communicated through a communicating pipe 65. The water in the second fresh water compartment 30 can flow to the first fresh water compartment 20 to achieve heat exchange.

The bulkhead of the buffer water tank 40 is provided with a heat dissipation hole 42, and the height of the heat dissipation hole 42 is higher than the water outlet height of the drain pipe 63 in the buffer water tank 40. Hot air that buffers the water in the water tank 40 may escape from within the heat sink 42.

In order to prevent dirt or insects from entering the fresh water cooling circulation. The heat dissipation holes 42 and/or the air inlet of the blower 50 are provided with a filter screen 70.

The buffer water tank 40 is provided with a closable dosing opening 41 for water treatment.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims

1. The novel fresh water cooling circulation system of the ship diesel engine unit is characterized by comprising a diesel engine unit (10), a first fresh water cabin (20), a second fresh water cabin (30) and a buffer water tank (40); the first fresh water cabin (20) is provided with a first suction inlet (21), the first suction inlet (21) is communicated with a water inlet pipe of the diesel engine set (10) through a first suction pipe (61), and a first check valve (611) is arranged on the first suction pipe (61); the water outlet of the diesel engine unit (10) is communicated with the buffer water tank (40) through a water drain pipe (63); the buffer water tank (40) is communicated with the second fresh water tank (30) through an overflow pipe (64), the second fresh water tank (30) is provided with a second suction inlet (31), the second suction inlet (31) is communicated with a water inlet pipe of the diesel engine unit (10) through a second suction pipe (62), and a second check valve (621) is arranged on the second suction pipe (62).

2. The novel marine diesel unit fresh water cooling circulation system according to claim 1, further comprising a blower (50), wherein cold air generated by the blower (50) is input into the buffer water tank (40) through an air supply pipe (51).

3. The fresh water cooling circulation system of the novel marine diesel engine set according to claim 2, wherein one end of the drain pipe (63) extends into the buffer water tank (40), the end is arched and bent, and the height of the water outlet is higher than the liquid level in the buffer water tank (40).

4. A new marine diesel unit fresh water cooling circulation system according to claim 3, characterized in that the end of the blast pipe (51) which is not connected to the blower (50) extends into the buffer tank (40) and the height of the end is matched with the height of the water outlet of the drain pipe (63).

5. The fresh water cooling circulation system of the novel marine diesel engine set according to claim 4, wherein the air outlet direction of the air supply pipe (51) extending into the buffer water tank (40) is 30-60 degrees with the water outlet direction of the water drain pipe (63) in the buffer water tank (40).

6. The novel marine diesel unit fresh water cooling circulation system according to claim 1, wherein the first fresh water tank (20) and the second fresh water tank (30) are communicated through a communicating pipe (65).

7. The fresh water cooling circulation system of the novel marine diesel engine unit according to claim 5, wherein a heat dissipation hole (42) is formed in a bulkhead of the buffer water tank (40), and the height of the heat dissipation hole (42) is higher than the water outlet height of the drain pipe (63) in the buffer water tank (40).

8. The novel marine diesel unit fresh water cooling circulation system according to claim 7, wherein the cooling holes (42) and/or the air inlet of the blower (50) are/is provided with a filter screen (70).

9. The fresh water cooling circulation system of the novel marine diesel engine set according to claim 5, wherein the buffer water tank (40) is provided with a closable dosing port (41).