A silent diesel generator set

Abstract

The present invention relates to the technical field of diesel generator sets, and discloses a silent diesel generator set, comprising: a box body, in which a diesel generator and an engine are fixedly installed, and a sound insulation cavity is opened in the box body, and the sound insulation cavity is filled with sound insulation material. The present invention fills cooling water in the water-containing chamber, and the cooling water can not only serve as an additional sound insulation layer, but also enhance the heat dissipation capacity of the system. The misalignment of the positions of the two movable plates causes the cooling water to flow in opposite directions in the upper chamber and the lower chamber, ensuring that the front and rear sections of the cooling water flow channel are provided on both sides of the box body. The position of the movable plate can be changed by switching the component, so that the flow direction of the cooling water around the box body is changed, which can greatly improve the heat dissipation and heat absorption effect, thereby protecting the sound insulation material, and there is no need to increase the power of the air-cooled heat dissipation component, fundamentally controlling the noise source to emit a louder noise, so that the entire system is in a silent state when working.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel generator sets, and in particular to a silent diesel generator set. Background Art

[0002] A silent diesel generator set is a diesel generator designed to reduce noise during operation. Compared with traditional diesel generators, the silent diesel generator set significantly reduces the noise level during operation through a series of sound insulation and noise reduction technologies, making it more suitable for use in environments with strict noise restrictions, such as residential areas, hospitals, schools, hotels, offices, etc.

[0003] Existing silent diesel generator sets usually fill the outer casing with sound insulation cotton, sound-absorbing foam and other materials to absorb and isolate the noise generated during the operation of the generator. However, the diesel generator will also generate a lot of heat during operation, so it must be equipped with an effective cooling system to ensure the normal operation and life of the machine. Under most normal working conditions, these sound insulation and sound-absorbing materials are sufficient to control the noise to an acceptable level. However, when the generator is in a high temperature environment and the load is too large, in order to enhance the heat dissipation effect, the cooling system needs to increase the power, which will cause greater noise, exceeding the absorption capacity of the sound insulation material. Under high temperature conditions, materials such as sound insulation cotton and sound-absorbing foam will melt due to heat, resulting in a decrease in their sound insulation performance. Based on this, the present invention purposely provides a silent diesel generator set that can effectively dissipate heat while controlling the low noise of the cooling system. Summary of the Invention

[0004] The purpose of the present invention is to provide a silent diesel generator set to address the shortcomings of the existing technology, so as to solve the technical problem that when the diesel generator set continues to work at high load, the power of the cooling system increases accordingly and the noise it emits cannot be effectively controlled.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A silent diesel generator set, comprising:

[0007] A box body, in which a diesel generator and an engine are fixedly installed, a sound insulation cavity is opened in the box body, the sound insulation cavity is filled with sound insulation material, and an air cooling and heat dissipation component is arranged in the box body;

[0008] A heat shield is fixedly mounted around the box body, with a water chamber between it and the box body, the water chamber being filled with cooling water, a partition is fixedly mounted between the box body and the heat shield, the partition dividing the water chamber into an upper chamber and a lower chamber, two diversion boxes are symmetrically mounted on the heat shield, each diversion box is connected to a corresponding circulating cooling assembly; and

[0009] There are two movable plates, which correspond to two diversion boxes respectively. The movable plates are slidably installed on the partition and are driven to rise and fall by the switching assembly. When one movable plate rises, the other movable plate falls. When one diversion box is connected to the upper chamber through one movable plate, the other diversion box is connected to the lower chamber through another movable plate. When the diversion box is connected to the upper chamber through the movable plate, its corresponding circulating cooling assembly is connected to the upper chamber.

[0010] As a further solution of the present invention: each of the circulating cooling components includes a first conveying pipe, a heat exchanger, a first return pipe and a second return pipe. The heat exchanger is fixedly installed on the heat insulation cover, and its discharge end is connected to the diversion box through the first conveying pipe, and its feed end is connected to the first return pipe and the second return pipe. The first return pipe is connected to the upper chamber, and the second return pipe is connected to the lower chamber. Valves are provided on the first return pipe and the second return pipe, and the two valves are opened and closed asynchronously.

[0011] As a further solution of the present invention: the switching assembly includes a lever and a connecting rod, the lever is rotatably installed on the top of the heat insulation cover, and is driven to rotate by an output source, the two connecting rods are respectively slidably installed on the heat insulation cover, and the top ends of the two are rotatably connected to the two ends of the lever, and the bottom end of each connecting rod is fixedly connected to a corresponding movable plate.

[0012] As a further solution of the present invention: the lower chamber is connected to the water inlet and outlet, and when the lever is in a horizontal position, the upper chamber is connected to the lower chamber through the diverter box.

[0013] As a further solution of the present invention: a heat dissipation fin is fixedly mounted on the box body, one end of the heat dissipation fin extends into the sound insulation cavity, and the other end thereof extends into the water holding cavity.

[0014] As a further solution of the present invention: an elastic sealing member is provided at the connection between the box body and the heat dissipation fins.

[0015] As a further solution of the present invention: the air-cooled heat dissipation component includes a heat dissipation fan and strip heat dissipation holes, the heat dissipation fan is fixedly installed at one end of the box, and the strip heat dissipation holes are opened at the other end of the box, and the heat dissipation fan and the strip heat dissipation holes are both provided with filters.

[0016] As a further solution of the present invention: a base is fixedly mounted on the bottom of the heat insulation cover, and a gap exists between the heat insulation cover and the base.

[0017] Beneficial effects of the present invention:

[0018] 1. In the present invention, by filling the water-containing chamber with cooling water, the cooling water not only serves as an additional sound insulation layer to help absorb and isolate noise, but also enhances the heat dissipation capacity of the system through its heat capacity characteristics. The offset position of the two movable plates causes the cooling water to flow in opposite directions in the upper and lower chambers, ensuring that both sides of the box body are provided with front and rear sections of the cooling water flow channel. The position of the movable plate can be changed by switching the assembly, so that the flow direction of the cooling water around the box body is changed, which can greatly improve the heat dissipation and heat absorption effect, thereby protecting the sound insulation material. There is no need to increase the power of the air-cooling heat dissipation assembly, and the noise source is fundamentally controlled to emit a larger noise, so that the entire system is in a silent state during operation.

[0019] 2. In the present invention, when the horizontal heights of the movable plates on both sides reach the same level, this change directly results in the movable plates being unable to completely cover the communication port between the diverter box and the lower chamber, and at the same time being unable to completely expose the communication path between the diverter box and the upper chamber. This partially covered and partially open state cleverly establishes a passage between the upper chamber and the lower chamber, so that they can be connected to each other through the diverter box. In this state, the cooling water in the water holding chamber can be discharged through the water inlet and outlet, and the cooling water can also be injected into the water holding chamber through the water inlet and outlet. Such a design is based on the need to disassemble and maintain the box body and the water holding chamber. The cooling water can be drained in advance, and after the installation is completed, the cooling water can be easily filled;

[0020] 3. In the present invention, by arranging the heat dissipation fins in the box body, it can effectively conduct the heat absorbed by the sound insulation material in the sound insulation cavity to the water chamber, and perform efficient heat exchange with the flowing cooling water. This process ensures that the sound insulation material will not be damaged due to being in a high temperature state for a long time, such as melting and other adverse conditions, thereby maintaining the stability and safety of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the present invention;

[0027] Figure 6It is a structural schematic diagram of the present invention.

[0028] In the figure: 1. Box body; 101. Sound insulation chamber; 2. Heat insulation cover; 3. Water holding chamber; 301. Upper chamber; 302. Lower chamber; 4. Partition; 5. Movable plate; 6. Diverter box; 7. Circulating cooling assembly; 701. First delivery pipe; 702. Heat exchanger; 703. First return pipe; 704. Second return pipe; 8. Switching assembly; 801. Lever; 802. Connecting rod; 9. Air-cooled heat dissipation assembly; 901. Heat dissipation fan; 902. Strip heat dissipation holes; 10. Heat dissipation fins; 11. Elastic seal; 12. Water inlet and outlet; 13. Base. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] See also Figures 1-6 As shown, the present invention is a silent diesel generator set, comprising:

[0031] The box body 1 has a diesel generator and an engine fixedly mounted therein, and a sound insulation cavity 101 is provided therein, the sound insulation cavity 101 is filled with sound insulation material, and an air cooling and heat dissipation component 9 is provided in the box body 1;

[0032] The heat shield 2 is fixedly mounted around the box body 1, and a water chamber 3 is located between the heat shield 2 and the box body 1. The water chamber 3 is filled with cooling water. A partition 4 is fixedly mounted between the box body 1 and the heat shield 2. The partition 4 separates the water chamber 3 into an upper chamber 301 and a lower chamber 302. Two diverter boxes 6 are symmetrically mounted on the heat shield 2, and each diverter box 6 is connected to a corresponding circulating cooling assembly 7; and

[0033] There are two movable plates 5, and the two movable plates 5 correspond to two diversion boxes 6 respectively. The movable plates 5 are slidably installed on the partition 4, and are driven to rise and fall by the switching component 8. When one movable plate 5 rises, the other movable plate 5 falls, and when one diversion box 6 is connected with the upper chamber 301 through one movable plate 5, the other diversion box 6 is connected with the lower chamber 302 through another movable plate 5, and when the diversion box 6 is connected with the upper chamber 301 through the movable plate 5, its corresponding circulating cooling component 7 is connected with the upper chamber 301.

[0034] In one case of this embodiment, it should be noted that the diesel generator and engine described in the present invention are all existing technologies, and the present invention does not improve them. Therefore, there is no need to disclose their specific mechanical structure and circuit structure, which does not affect the integrity of the present invention; the sound insulation material can be sound insulation cotton, sound-absorbing foam, etc., and this embodiment does not make specific limitations here.

[0035] In actual application, this embodiment can effectively absorb and block the noise generated by the diesel generator and engine under normal working conditions by filling the sound insulation cavity 101 with sound insulation material, while the water chamber 3 is filled with cooling water. The cooling water not only serves as an additional sound insulation layer to help absorb and isolate noise, but also enhances the heat dissipation capacity of the system through its heat capacity characteristics. In combination with the air-cooled heat dissipation component 9, the heat dissipation efficiency of the entire device can be improved.

[0036] When the diesel generator and engine are in intense working condition, such as Figure 3 As shown in the example, the positions of the two movable plates 5 are misaligned. At this time, the diverter box 6 on the left is connected to the lower chamber 302 through the movable plate 5, and its corresponding circulating cooling component is connected to the lower chamber 302. Therefore, the flow direction of the cooling water in the lower chamber 302 is from left to right, and the diverter box 6 on the right is connected to the upper chamber 301 through the movable plate 5, and its corresponding circulating cooling component is connected to the upper chamber 301. Therefore, the flow direction of the cooling water in the upper chamber 301 is from right to left. At this time, cooling water passes through the upper and lower parts of the box body 1 for heat exchange, and both sides of the box body 1 have a front section and a rear section of a cooling water flow channel, and the low-temperature cooling water in the front section can exchange heat with the high-temperature cooling water after heat exchange, so that the temperature on both sides of the box body 1 is maintained at a lower temperature, and the circulating cooling component ensures the entire The cooling efficiency of the system; and the position of the movable plates 5 on both sides can be changed by the switching component 8, so that the flow direction of the cooling water in the upper chamber 301 and the lower chamber 302 is changed, that is, the flow direction of the cooling water in the same flow channel is changed, that is, the cooling water channel originally located in the rear section becomes the front section, so that the low-temperature cooling water can give priority to cooling these areas, avoiding the problem of heat accumulation caused by certain areas being unable to effectively absorb heat due to always being in the rear section of heat dissipation, and by simply adjusting the position of the movable plate 5, the flow direction of the cooling water around the box 1 is changed, which can greatly improve the effect of heat dissipation and heat absorption, and can effectively control the noise source without increasing the power of the air-cooled heat dissipation component 9 to prevent it from making louder noise. Therefore, the entire system can remain silent during operation while ensuring efficient heat dissipation performance.

[0037] like Figure 1-Figure 3As shown, as a preferred embodiment of the present invention, each of the circulating cooling components 7 includes a first conveying pipe 701, a heat exchanger 702, a first return pipe 703 and a second return pipe 704. The heat exchanger 702 is fixedly installed on the heat insulation cover 2, and its discharge end is connected to the diversion box 6 through the first conveying pipe 701, and its feed end is connected to the first return pipe 703 and the second return pipe 704. The first return pipe 703 is connected to the upper chamber 301, and the second return pipe 704 is connected to the lower chamber 302. Valves are provided on the first return pipe 703 and the second return pipe 704, and the two valves are opened and closed asynchronously.

[0038] In one case of this embodiment, it should be noted that a power pump is provided on the first delivery pipe 701. The heat exchanger 702, power pump and valve described in the present invention are all existing technologies, and the present invention does not improve them. Therefore, there is no need to disclose their specific mechanical structure and circuit structure, which does not affect the integrity of the present invention.

[0039] In actual application of this embodiment, when the diverter box 6 is connected to the upper chamber 301 through the movable plate 5, the first return pipe 703 is opened, and the second return pipe 704 is closed. At this time, the upper chamber 301 is connected to the heat exchanger 702 through the first return pipe 703. Under the action of the power pump, the cooling water in the upper chamber 301 will be transported to the heat exchanger 702 through the first return pipe 703, and heat exchange and cooling will be carried out in the heat exchanger 702. Then, the cooling water will be transported to the diverter box 6 through the first delivery pipe 701. Finally, it returns to the upper chamber 301 through the diverter box 6 for a circulation; and when the diverter box 6 is connected to the lower chamber 302 through the movable plate 5, the second return pipe 704 is opened and the first return pipe 703 is closed. At this time, the lower chamber 302 is connected to the heat exchanger 702 through the second return pipe 704, and the cooperation of the two symmetrical circulation components can make the cooling water in the water chamber 3 flow in different directions and can change, thereby improving the water cooling effect and also being able to cool the sound insulation material.

[0040] like Figure 1-Figure 3 As shown, as a preferred embodiment of the present invention, the switching assembly 8 includes a lever 801 and a connecting rod 802. The lever 801 is rotatably mounted on the top of the heat shield 2 and is driven to rotate by an output source. The two connecting rods 802 are respectively slidably mounted on the heat shield 2, and the top ends of the two are rotatably connected to the two ends of the lever 801, and the bottom end of each connecting rod 802 is fixedly connected to a corresponding movable plate 5.

[0041] In one case of this embodiment, the output source may be a servo motor, a servo motor or other components, or other mechanisms that can realize the rotational movement of the lever 801, which is not specifically limited in this embodiment.

[0042] In actual application, this embodiment controls the rotation of the lever 801 through the output source, thereby driving the lifting and lowering movement of the connecting rod 802, and finally driving the movable plate 5 connected thereto to lift and lower. As the movable plate 5 rises and falls, it will change its relative position with the diverter box 6, thereby switching the connection state between the diverter box 6 and the upper chamber 301 and the lower chamber 302; specifically, when the movable plate 5 is at a certain height, it completely closes the connection port between the diverter box 6 and the upper chamber 301, and at the same time opens the connection between the diverter box 6 and the lower chamber 302; and when the movable plate 5 is lifted to another height, this state will be reversed, realizing the switching of the cooling water flow direction. By regularly changing the cooling water flow direction, it can be ensured that the cooling water can flow more evenly through the key parts of the diesel generator and the engine, reducing the risk of local overheating, thereby improving the overall cooling efficiency.

[0043] like Figure 1-Figure 3 As shown, as a preferred embodiment of the present invention, the lower chamber 302 is connected to the water inlet and outlet 12, and when the lever 801 is in a horizontal position, the upper chamber 301 is connected to the lower chamber 302 through the diverter box 6.

[0044] In actual application of this embodiment, under specific working conditions, when the lever 801 is rotated to the horizontal position, the connection state between them and the diverter box 6 is subtly changed. Specifically, the horizontal heights of the movable plates 5 on both sides are consistent at this time. This change directly causes the movable plate 5 to be unable to completely block the connecting port between the diverter box 6 and the lower chamber 302, and at the same time, it cannot completely expose the connecting path between the diverter box 6 and the upper chamber 301. This partially shielded and partially open state cleverly establishes a passage between the upper chamber 301 and the lower chamber 302, so that they can be connected to each other through the diverter box 6. In this state, the cooling water in the water holding chamber 3 can be discharged through the water inlet and outlet 12, and the cooling water can also be injected into the water holding chamber 3 through the water inlet and outlet 12. This design is based on the need to disassemble and maintain the box body 1 and the water holding chamber 3. The cooling water can be drained in advance, and after the installation is completed, the cooling water can also be easily filled.

[0045] like Figure 3-Figure 6 As shown, as a preferred embodiment of the present invention, a heat dissipation fin 10 is fixedly mounted on the box body 1 , and one end of the heat dissipation fin 10 extends into the sound insulation cavity 101 , and the other end thereof extends into the water containing chamber 3 .

[0046] In actual application, the present embodiment can effectively conduct the heat absorbed by the sound insulation material in the sound insulation cavity 101 to the water chamber 3 by arranging the heat dissipation fins 10 in the box body 1, and perform efficient heat exchange with the flowing cooling water. This process ensures that the sound insulation material will not be damaged due to being in a high temperature state for a long time, such as melting, etc., thereby maintaining the stability and safety of the entire system, and as Figure 3 As shown in the example, the flow channels between the fins of the heat dissipation fins 10 are parallel to the flow direction of the cooling water, which will not block the circulation of the cooling water. In addition, the contact area between the heat dissipation fins 10 and the cooling water is larger, and the heat exchange efficiency is higher.

[0047] like Figure 3-Figure 6 As shown, as a preferred embodiment of the present invention, an elastic sealing member 11 is provided at the connection between the box body 1 and the heat dissipation fins 10 .

[0048] In actual application of this embodiment, the elastic seal 11 has good elasticity, can effectively absorb vibration and reduce noise generation. It is installed between the heat dissipation fins 10 and the box body 1 to form a buffer layer. At the same time, the elastic seal 11 also has good thermal stability and temperature resistance, and is suitable for high temperature environments.

[0049] like Figure 1-Figure 2 As shown, as a preferred embodiment of the present invention, the air-cooled heat dissipation component 9 includes a heat dissipation fan 901 and a strip heat dissipation hole 902. The heat dissipation fan 901 is fixedly installed at one end of the box body 1, and the strip heat dissipation hole 902 is opened at the other end of the box body 1. The heat dissipation fan 901 and the strip heat dissipation hole 902 are both provided with a filter.

[0050] In actual application of this embodiment, the cooling fan 901 is started to blow external air into the box body 1, thereby increasing the speed of air circulation in the box body 1, thereby taking away the heat generated by the diesel generator and the engine surface, and the hot air is discharged from the box body 1 through the strip-shaped cooling holes 902. This cycle is repeated to achieve a basic air-cooling effect. This process not only promotes the heat dissipation of the equipment, but also because the cooling fan 901 is arranged inside the box body 1, the sound insulation material in the sound insulation cavity 101 and the cooling water in the water chamber 3 can absorb the noise generated when it is working, thereby effectively controlling and limiting the spread of noise, ensuring effective heat dissipation during the operation of the diesel generator, and maintaining a low noise level for the entire system, achieving a balance between efficiency and environmental protection.

[0051] like Figure 1-Figure 2 As shown in FIG. 1 , as a preferred embodiment of the present invention, a base 13 is fixedly mounted on the bottom of the heat insulation cover 2 , and a gap exists between the heat insulation cover 2 and the base 13 .

[0052] In actual application of this embodiment, the heat insulation cover 2 is lifted off the ground by the base 13, so that external air can flow through the gap between the heat insulation cover 2 and the base 13 to take away the heat from the surface of the heat insulation cover 2, thereby avoiding the problem of the heat being difficult to dissipate from the bottom of the heat insulation cover 2 when it is placed directly on the ground.

[0053] Working principle of the present invention: The above embodiment of the present invention provides a silent diesel generator set. Due to the positional misalignment of the two movable plates 5, the diverter box 6 on the left is connected to the lower chamber 302 through the movable plate 5, and its corresponding circulating cooling component is connected to the lower chamber 302. Therefore, the flow direction of the cooling water in the lower chamber 302 is from left to right, while the diverter box 6 on the right is connected to the upper chamber 301 through the movable plate 5, and its corresponding circulating cooling component is connected to the upper chamber 301. Therefore, the flow direction of the cooling water in the upper chamber 301 is from right to left. At this time, the upper chamber 301 of the box body 1 is connected to the lower chamber 302. Cooling water passes through the bottom for heat exchange, and both sides of the box body 1 have a front section and a rear section of a cooling water flow channel, and the low-temperature cooling water in the front section can exchange heat with the high-temperature cooling water after heat exchange, so that the temperature on both sides of the box body 1 is maintained at a lower temperature, and the position of the movable plates 5 on both sides can be changed by switching the component 8, so that the flow direction of the cooling water in the upper chamber 301 and the lower chamber 302 is changed, that is, the flow direction of the cooling water in the same flow channel is changed, that is, the cooling water channel originally located in the rear section becomes the front section, so that the low-temperature cooling water can give priority to cooling these areas.

[0054] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A silent diesel generator set, characterized in that: include: A box (1) is provided with a diesel generator and an engine fixedly mounted therein, and a sound insulation cavity (101) is provided therein, wherein the sound insulation cavity (101) is filled with sound insulation material, and an air-cooling heat dissipation component (9) is provided in the box (1); The heat insulation cover (2) is fixedly installed around the box body (1), and a water chamber (3) is present between the heat insulation cover (2) and the box body (1), wherein the water chamber (3) is filled with cooling water, a partition (4) is fixedly installed between the box body (1) and the heat insulation cover (2), wherein the partition (4) separates the water chamber (3) into an upper chamber (301) and a lower chamber (302), and two diversion boxes (6) are symmetrically installed on the heat insulation cover (2), wherein each diversion box (6) is connected to a corresponding circulating cooling assembly (7); and two movable plates (5). The two movable plates (5) are connected to the cooling element (7). ) correspond to the two diversion boxes (6), respectively, the movable plate (5) is slidably mounted on the partition (4), and is driven to rise and fall by the switching assembly (8), when one movable plate (5) rises, the other movable plate (5) falls, and when one diversion box (6) is connected to the upper chamber (301) through one movable plate (5), the other diversion box (6) is connected to the lower chamber (302) through the other movable plate (5), and when the diversion box (6) is connected to the upper chamber (301) through the movable plate (5), its corresponding circulating cooling assembly (7) is connected to the upper chamber (301); Each of the circulating cooling components (7) comprises a first conveying pipe (701), a heat exchanger (702), a first return pipe (703) and a second return pipe (704); the heat exchanger (702) is fixedly mounted on the heat insulation cover (2); a discharge end thereof is connected to the diversion box (6) via the first conveying pipe (701); and a feed end thereof is connected to the first return pipe (703) and the second return pipe (704); the first return pipe (703) is connected to the upper chamber (301); and the second return pipe (704) is connected to the lower chamber (302); valves are provided on both the first return pipe (703) and the second return pipe (704); and the two valves are opened and closed asynchronously.

2. A silent diesel generator set according to claim 1, characterized in that: The switching assembly (8) includes a lever (801) and a connecting rod (802), wherein the lever (801) is rotatably mounted on the top of the heat shield (2) and driven to rotate by an output source, and two connecting rods (802) are respectively slidably mounted on the heat shield (2), and the top ends of the two connecting rods are rotatably connected to the two ends of the lever (801), and the bottom end of each connecting rod (802) is fixedly connected to a corresponding movable plate (5).

3. A silent diesel generator set according to claim 2, characterized in that: The lower chamber (302) is in communication with the water inlet and outlet (12); when the lever (801) is in a horizontal position, the upper chamber (301) is in communication with the lower chamber (302) via the diverter box (6).

4. A silent diesel generator set according to claim 1, characterized in that: A heat dissipation fin (10) is fixedly mounted on the box body (1), one end of the heat dissipation fin (10) extends into the sound insulation cavity (101), and the other end extends into the water containing cavity (3).

5. A silent diesel generator set according to claim 4, characterized in that: An elastic sealing member (11) is provided at the connection between the box body (1) and the heat dissipation fins (10).

6. A silent diesel generator set according to claim 1, characterized in that: The air-cooled heat dissipation component (9) comprises a heat dissipation fan (901) and a strip heat dissipation hole (902), wherein the heat dissipation fan (901) is fixedly mounted on one end of the box body (1), and the strip heat dissipation hole (902) is opened at the other end of the box body (1), and the heat dissipation fan (901) and the strip heat dissipation hole (902) are both provided with a filter screen.

7. A silent diesel generator set according to claim 1, characterized in that: A base (13) is fixedly mounted on the bottom of the heat insulation cover (2), and a gap exists between the heat insulation cover (2) and the base (13).

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