Marine diesel engine air cooling device

Abstract

The utility model discloses a marine diesel engine air cooling device which comprises a base, an installation cavity is formed in the base, the inner wall face of the installation cavity is attached to the outer surface of a marine diesel engine, heat dissipation driving mechanisms are arranged at the two ends of the base respectively, and each heat dissipation driving mechanism comprises a through opening formed in the end of the base and a supporting rod connected in the through opening. The motor is installed on the outer side of the supporting rod, the heat dissipation fan is arranged at the output end of the motor, a plurality of heat dissipation grooves are evenly distributed in the inner wall face of the installation cavity and extend between the two heat dissipation driving mechanisms, and the two ends of each heat dissipation groove are aligned to the corresponding through opening. After the diesel engine is installed, heat dissipation channels which are evenly distributed can be formed in the contact area of the diesel engine and the base, the paths of the heat dissipation channels are fixed, the sectional area of the heat dissipation channels is small, stable and high-speed flowing air can be generated under driving of the heat dissipation fan, heat of the diesel engine is taken away in time, and comprehensive air cooling heat dissipation of the marine diesel engine is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of marine diesel engines, in particular to an air cooling device for a marine diesel engine. Background Art

[0002] Marine diesel engines are engines that obtain power by burning diesel. When using existing marine diesel engine air cooling devices, most of them place the marine diesel engine on an air cooling heat dissipation base, and use a cooling fan to achieve heat exchange inside and outside the air cooling heat dissipation base to achieve the heat dissipation effect. However, due to the close contact between the marine diesel engine and the heat dissipation base, the cooling wind of the cooling fan cannot reach this area, so that effective heat dissipation cannot be achieved. This results in poor overall heat dissipation of the marine diesel engine, especially the heat accumulation in the parts in close contact with the base, which ultimately affects the operating safety of the diesel engine. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides an air cooling device for a marine diesel engine, which solves the technical problems of no heat dissipation sector between the marine diesel engine and the heat dissipation base and poor heat dissipation effect.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A marine diesel engine air cooling device comprises a base, wherein a mounting cavity for mounting the marine diesel engine is formed in the base, the inner wall surface of the mounting cavity is in contact with the outer surface of the marine diesel engine, heat dissipation drive mechanisms are provided at both ends of the base, the heat dissipation drive mechanisms comprise a through opening opened at the end of the base, a support rod fixedly connected in the through opening, a motor mounted on the outside of the support rod, and a heat dissipation fan provided at the output end of the motor, a plurality of heat dissipation grooves are evenly distributed on the inner wall surface of the mounting cavity, the heat dissipation grooves extend between two heat dissipation drive mechanisms, and both ends of the heat dissipation grooves are aligned with the through opening.

[0006] A further improvement is that the heat dissipation grooves include side heat dissipation grooves located at the sides of the inner wall surface of the installation cavity and bottom heat dissipation grooves located at the bottom of the inner wall surface of the installation cavity.

[0007] A further improvement is that the side heat dissipation grooves adopt a curved "m"-shaped structure, and the bottom heat dissipation grooves are a linear structure.

[0008] A further improvement is that the base adopts an internal hollow structure, and flow-aiding holes communicating with the interior of the base are provided at both ends of the base.

[0009] A further improvement is that the flow-aiding hole is arc-shaped and is arranged at a peripheral position close to the through opening.

[0010] By means of the above technical solution, the utility model provides an air cooling device for a marine diesel engine, which has at least the following beneficial effects:

[0011] The utility model sets the installation cavity of the diesel engine base into a shape that matches the outer surface of the diesel engine, and opens a heat dissipation groove on the inner wall surface, so that after the diesel engine is installed, the contact area between the diesel engine and the base can form a uniformly distributed heat dissipation channel, and the heat dissipation channel has a fixed path and a small cross-sectional area. In this way, under the drive of the heat dissipation fan, a stable and high-speed flow wind can be generated to take away the heat of the diesel engine in time, thereby realizing comprehensive air cooling and heat dissipation of the marine diesel engine; in addition, flow-aiding holes are opened at both ends of the base and the interior is hollow, so that the heat dissipation fan can generate an air flow flowing through the inside of the base when working, further improving the heat dissipation effect and ensuring the safety of the marine diesel engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the base of the utility model;

[0015] Figure 3 It is a schematic diagram of the internal structure of the utility model from a side view.

[0016] In the figure: 1, base; 2, heat dissipation drive mechanism; 20, support rod; 21, motor; 22, heat dissipation fan; 23, annular heat dissipation groove; 3, installation cavity; 30, inner wall surface; 31, side heat dissipation groove; 32, bottom heat dissipation groove. DETAILED DESCRIPTION

[0017] 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.

[0018] Embodiment 1

[0019] Combination Figure 1-3As shown, a marine diesel engine air cooling device comprises a base 1, wherein a mounting cavity 3 for mounting a marine diesel engine is formed in the base 1, and a cover plate can be provided in the mounting cavity 3 to realize moisture-proof and protection, and a hole for the transmission belt to extend outward is left on the cover plate. The inner wall surface 30 of the mounting cavity 3 is basically in contact with the outer surface of the marine diesel engine. Of course, for the normal operation of the diesel engine, a certain gap needs to be left at the end of the diesel engine, and other positions, especially the outer surface position of the middle part of the diesel engine that is easy to generate heat, need to reduce the gap of the contact position as much as possible to maintain the fit. Both ends of the base 1 are provided with a heat dissipation drive mechanism 2, and the heat dissipation drive mechanism 2 includes a through-hole opened at the end of the base 1, and a support rod 20 fixedly connected in the through-hole, and a motor 21 mounted on the outside of the support rod 20, and a heat dissipation fan 22 provided at the output end of the motor 21. A plurality of heat dissipation grooves are evenly distributed on the inner wall surface 30 of the mounting cavity 3, and the heat dissipation grooves extend between the two heat dissipation drive mechanisms 2, and both ends of the heat dissipation grooves are aligned with the through-hole position.

[0020] During operation, the motors 21 at both ends are started to rotate the cooling fan 22, so that one end opening is for air intake and the other end opening is for exhaust, so that flowing wind can be formed in the cooling slot to take away the heat from the surface of the diesel engine.

[0021] Preferably, the heat dissipation grooves in the present invention include side heat dissipation grooves 31 located at the side of the inner wall surface 30 of the installation cavity 3 and bottom heat dissipation grooves 32 located at the bottom of the inner wall surface 30 of the installation cavity 3. The side heat dissipation grooves 31 and the bottom heat dissipation grooves 32 are evenly distributed, which is conducive to comprehensive heat dissipation.

[0022] Among them, the side heat dissipation groove 31 adopts a curved "m"-shaped structure, which can increase the air flow path, improve the heat exchange area, and make the air produce a certain disturbance effect, thereby improving the heat exchange efficiency. The bottom heat dissipation groove 32 is a linear structure, and the gap between adjacent bottom heat dissipation grooves 32 is small to ensure the heat dissipation effect.

[0023] Preferably, the base 1 in the present invention adopts an internal hollow structure, and flow-aiding holes 23 connected to the interior of the base 1 are opened at both ends of the base 1. The opening of the flow-aiding holes 23 allows the internal space of the base 1 to be connected to the outside world, achieving a certain heat dissipation effect.

[0024] Preferably, the flow-aiding hole 23 of the utility model is arc-shaped and is arranged at the peripheral position close to the through-port. In this way, after the motor 21 is started, not only airflow is generated in the through-port and the heat dissipation groove, but also the air flow at the position of the flow-aiding hole 23 is driven, so that the outside air enters the inside of the base 1, and then is discharged from the inside of the base 1 to take away the heat, so as to prevent the base 1 from absorbing more and more heat due to long-term contact with the diesel engine.

[0025] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine diesel engine air cooling device, comprising a base (1), characterized in that: The base (1) is formed with a mounting cavity (3) for mounting a marine diesel engine, the inner wall surface (30) of the mounting cavity (3) being in contact with the outer surface of the marine diesel engine, and heat dissipation drive mechanisms (2) are provided at both ends of the base (1), the heat dissipation drive mechanism (2) comprising a through opening opened at the end of the base (1), a support rod (20) fixedly connected in the through opening, a motor (21) mounted on the outside of the support rod (20), and a heat dissipation fan (22) provided at the output end of the motor (21), and a plurality of heat dissipation grooves are evenly distributed on the inner wall surface (30) of the mounting cavity (3), the heat dissipation grooves extending between the two heat dissipation drive mechanisms (2), and both ends of the heat dissipation grooves are aligned with the through opening.

2. The marine diesel engine air cooling device according to claim 1, characterized in that: The heat dissipation groove comprises a side heat dissipation groove (31) located on the side of the inner wall surface (30) of the installation cavity (3) and a bottom heat dissipation groove (32) located on the bottom of the inner wall surface (30) of the installation cavity (3).

3. The marine diesel engine air cooling device according to claim 2, characterized in that: The side heat dissipation groove (31) adopts a curved "M"-shaped structure, and the bottom heat dissipation groove (32) is a linear structure.

4. The marine diesel engine air cooling device according to claim 1, characterized in that: The base (1) has an internal hollow structure, and flow-aiding holes (23) communicating with the interior of the base (1) are provided at both ends of the base (1).

5. The marine diesel engine air cooling device according to claim 4, characterized in that: The flow-aiding hole (23) is arc-shaped and is arranged at an outer peripheral position close to the through opening.

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