Silent high-heat-dissipation diesel generating set

Abstract

The invention relates to the technical field of diesel generators, in particular to a silent high-heat-dissipation diesel generator set which comprises an engine body, an air cooling system and a water cooling system, and the water cooling system comprises a heat absorption part and a heat dissipation part; a heat absorption part of the water cooling system is used for absorbing heat at the air cooling system, a heat dissipation part of the water cooling system communicates with an exhaust port of the engine body, and the water cooling system is used for transmitting the heat of the air cooling system to the exhaust port of the engine. The air suction area of the air cooling system is cooled through the heat absorption part of the air cooling system, then it is guaranteed that air blown to the engine body by the air cooling system is lower than the normal temperature of the area where the air cooling system is located, and the absorbed heat is conducted to the heat dissipation part of the water cooling system through the water cooling system; in the operation process of the engine body, exhaust gas generated in the operation process of the engine is exhausted through the exhaust port of the engine body, and finally the exhaust gas is released along with air flowing through the exhaust port of the engine body.

Description

Technical Field

[0001] The invention relates to the technical field of diesel generators, and in particular to a silent high-heat dissipation diesel generator set. Background Art

[0002] Diesel generator is a kind of power generation equipment which uses diesel as fuel and is widely used in many fields such as industry, commerce and home. Its main components include diesel engine, generator set, control system and cooling system; Chinese Patent: CN202320037914.X discloses a silent diesel generator heat dissipation device, including a base and a cooling device; one side of the transmission assembly is connected to the output end of the motor body, the motor body can drive the transmission assembly to rotate, and the turbine contains coolant; the turbine is arranged on the side of the transmission assembly away from the motor body, and the motor body drives the turbine to rotate through the transmission assembly; the heat absorption pipeline is arranged on the side wall of the turbine, the heat absorption pipeline is wound around the outer wall of the motor body, and coolant is arranged in the heat absorption pipeline; the heat dissipation pipeline is arranged on the side wall of the turbine on one side of the heat absorption pipeline, the end of the heat absorption pipeline away from the turbine is communicated with the end of the heat dissipation pipeline away from the turbine, and coolant is arranged in the heat dissipation pipeline, so that the heat dissipation device will not generate sound while dissipating the heat of the diesel generator, and the heat dissipation efficiency can be ensured not to be reduced.

[0003] According to the above patent, the heat dissipation of the diesel generator set is carried out by heat conduction of the water cooling system. The heat of the turbine needs to be transferred to the coolant inside it through the heat absorption pipe for heat exchange, and then the heat is gradually transferred to the heat dissipation pipeline for heat dissipation. However, the heat dissipation effect of heat conduction through water cooling alone is still very limited, and the heat dissipation efficiency is relatively slow. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a silent high-heat dissipation diesel generator set to solve the technical problem that the prior art uses a heat absorption pipe to transfer the heat of the turbine to the coolant inside it for heat exchange, and then the heat is gradually transferred to the heat dissipation pipeline for heat dissipation, but the heat dissipation effect of the heat conduction method using water cooling alone is still very limited, and the heat dissipation efficiency is relatively slow.

[0005] Based on the above purpose, the present invention provides a silent high heat dissipation diesel generator set, including an engine body, the silent high heat dissipation diesel generator set also includes an air cooling system and a water cooling system, the air cooling system is arranged on one side of the engine body, and the water cooling system includes a heat absorbing part and a heat dissipating part; The heat absorbing part of the water cooling system is used to absorb the heat from the air cooling system. The heat dissipating part of the water cooling system is connected to the exhaust port of the engine body. The water cooling system is used to transfer the heat from the air system to the exhaust port of the engine.

[0006] Preferably, the air cooling system includes a frame, the frame is arranged on one side of the engine body, and a fan blade is arranged inside the frame, and the fan blade is rotatably connected to the frame; The frame is provided with a protective cover, which is located on both sides of the fan blade in the radial direction; A first pulley is arranged at the outer end of the crankshaft of the engine body, and a second pulley is arranged on the fan blade rotating shaft. The first pulley and the second pulley are connected by belt transmission.

[0007] Preferably, the water cooling system includes a guide pipe, which is connected end to end and has coolant injected inside. The heat absorption part of the guide pipe is distributed on one side of the axial direction of the fan blade, and the heat absorption part of the guide pipe is provided with heat conducting fins. The heat dissipation part of the guide pipe is connected to the exhaust port of the engine body, and the heat dissipation part is provided with heat dissipation fins.

[0008] Preferably, the diesel generator set also includes a flow rate control mechanism, a pump body is connected to the guide pipe, a first impeller is arranged inside the pump body, and the first impeller is rotatably connected to the pump body, and the flow rate control mechanism is used to control the transfer of the first impeller, thereby controlling the flow rate of the coolant in the guide pipe.

[0009] Preferably, the flow rate control mechanism comprises a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are distributed above the frame; The first connecting rod is provided with a first gear and a second gear, the second connecting rod is provided with a third gear meshing with the first gear, and a fourth gear meshing with the second gear, the diameter of the first gear is larger than that of the third gear, and the diameter of the second gear is smaller than that of the fourth gear; The first connecting rod is drivingly connected to the second pulley, and the second connecting rod is drivingly connected to the first impeller; The flow rate control mechanism also includes a gear switching component, which is used to control the axial movement of the second connecting rod, thereby controlling the first gear to mesh with the third gear or the second gear to mesh with the fourth gear.

[0010] Preferably, one end of the second connecting rod is sleeved with a spline ring and slidably connected thereto, the spline ring is rotatably connected to the frame through a bearing, the other end of the second connecting rod is sleeved with a spline sleeve and slidably connected thereto, the spline sleeve is rotatably connected to the frame; The gear shift assembly includes a sleeve, the sleeve is sleeved on the second linkage rod and fixedly connected thereto, a disc is sleeved on the sleeve and rotatably connected thereto through a bearing, a guide rod is provided on the disc, and the disc is slidably connected to the frame through the guide rod; An electromagnet is fixedly arranged on the frame, a ferromagnetic material is arranged on one side of the disc body facing the electromagnet, and a first elastic element for pushing the disc body away from the electromagnet is arranged on the second connecting rod.

[0011] Preferably, the first bevel gear is sleeved on the spline sleeve and fixedly connected thereto; A third connecting rod is arranged on the frame and is rotatably connected thereto, a second bevel gear is arranged on the top end of the third connecting rod, and the second bevel gear is meshed with the first bevel gear; A third pulley is arranged at the fan blade shaft, a fourth pulley is arranged at the end of the first connecting rod, the third pulley and the fourth pulley are connected by belt transmission, and a tensioning wheel is arranged on the frame, and the tensioning wheel is in contact with the inner wall of the belt.

[0012] Preferably, the diesel generator set also includes an exhaust pipe, which is a three-way pipe structure and has an air inlet, an air outlet and an air intake, the air inlet of the exhaust pipe is connected to the exhaust port of the engine body, the cooling fins are located at the air intake of the exhaust pipe, and the air outlet of the exhaust pipe is provided with a muffler.

[0013] Preferably, the air outlet of the exhaust pipe is provided with a fourth connecting rod and is rotatably connected thereto, and the air intake of the exhaust pipe is provided with a fifth connecting rod and is rotatably connected thereto; A second impeller is disposed at one end of the fourth connecting rod, and a third bevel gear is disposed at the other end of the fourth connecting rod; a third impeller is disposed at one end of the fifth connecting rod, and a fourth bevel gear is disposed at the other end of the fifth connecting rod, and the third bevel gear is meshed with the fourth bevel gear.

[0014] Preferably, a retaining ring and a convex ring are provided on the inner wall of the air intake port of the exhaust pipe, a valve sheet is provided between the retaining ring and the convex ring, and the diameter of the retaining ring is smaller than the inner diameter of the air intake port of the exhaust pipe; The convex ring is provided with a second elastic element, and two ends of the second elastic element are respectively connected to the convex ring and the valve plate. The second elastic element is used to push the valve plate close to the inner end wall of the retaining ring.

[0015] Beneficial effects of the present invention: The present invention cools down the air sucked by the air cooling system through the water cooling system, specifically, cools down the air sucked by the air cooling system through the heat absorption part of the air cooling system, and then ensures that the air blown to the engine body by the air cooling system has a temperature lower than the normal temperature of the area, and the water cooling system will conduct the absorbed heat to its heat dissipation part. During the operation of the engine body, the exhaust port of the engine body will discharge the exhaust gas generated by the engine during the operation, and finally release it through the exhaust port of the engine body along with the air flow, thereby solving the problem that the heat dissipation effect of the method of heat conduction only through water cooling is still very limited and the heat dissipation efficiency is relatively slow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional mechanism of the present invention; Figure 2 The three-dimensional structure diagram of the air cooling system, water cooling system, flow rate control mechanism, exhaust pipe and muffler of the present invention is shown in FIG. Figure 1 ; Figure 3 The three-dimensional structure diagram of the air cooling system, water cooling system, flow rate control mechanism, exhaust pipe and muffler of the present invention is shown in FIG. Figure 2 ; Figure 4 It is a front view of the present invention; Figure 5 for Figure 2 A magnified image of point A; Figure 6 It is a partial structural schematic diagram of the flow rate control mechanism of the air cooling system and the water cooling system of the present invention; Figure 7 A front view of an exhaust pipe of the present invention; Figure 8 for Figure 7 BB direction cross-sectional view.

[0018] The numbers in the figure are: 1-engine body; 2-air cooling system; 21-frame; 22-fan blades; 23-protective cover; 24-first pulley; 25-second pulley; 3-water cooling system; 31-flow guide tube; 32-heat conducting fins; 33-heat dissipation fins; 4-flow rate control mechanism; 41-first linkage rod; 411-first gear; 412-second gear; 42-second linkage rod; 421-third gear; 422-fourth gear; 423-spline sleeve; 424-first bevel gear; 43-gear shift assembly; 431-sleeve; 432 -disk body; 433-guide rod; 434-electromagnet; 435-first elastic element; 44-third connecting rod; 441-second bevel gear; 45-third pulley; 46-fourth pulley; 47-tensioning wheel; 5-pump body; 51-first impeller; 6-exhaust pipe; 61-fourth connecting rod; 611-second impeller; 612-third bevel gear; 62-fifth connecting rod; 621-third impeller; 622-fourth bevel gear; 63-blocking ring; 64-convex ring; 65-valve plate; 66-second elastic element; 7-muffler. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] The first aspect of the present invention provides a silent high heat dissipation diesel generator set, such as Figures 1 to 4 As shown, it includes an engine body 1, and the silent high heat dissipation diesel generator set also includes an air cooling system 2 and a water cooling system 3. The air cooling system 2 is arranged on one side of the engine body 1, and the water cooling system 3 includes a heat absorbing part and a heat dissipating part; The heat absorbing part of the water cooling system 3 is used to absorb the heat from the air cooling system 2, and the heat dissipating part of the water cooling system 3 is connected to the exhaust port of the engine body 1. The water cooling system 3 is used to transfer the heat from the air system to the exhaust port of the engine.

[0022] In this embodiment, in the engine body 1 in the diesel generator set, one end of the crankshaft drives the generator input shaft to rotate during the operation of the engine body 1, and the other end of the crankshaft drives the fan blades 22 to rotate. During the rotation of the fan blades 22, the external air is sucked and blown toward the engine body 1, thereby cooling the engine body 1; In order to improve the cooling effect, the air sucked by the air cooling system 2 will be cooled by the water cooling system 3. Specifically, the air sucked by the air cooling system 2 will be cooled by the heat absorption part of the air cooling system 2. Then, it is ensured that the air blown by the air cooling system 2 to the engine body 1 has a temperature lower than the normal temperature of the area, and the water cooling system 3 will transfer the absorbed heat to its heat dissipation part. During the operation of the engine body 1, the exhaust port of the engine body 1 will discharge the exhaust gas generated during the operation of the engine, and finally release it through the exhaust port of the engine body 1 with the air flow.

[0023] As an implementation method, Figures 1 to 4As shown, further: The air cooling system 2 includes a frame 21, which is arranged on one side of the engine body 1. The frame 21 is provided with fan blades 22 inside, and the fan blades 22 are rotatably connected to the frame 21; The frame 21 is provided with a protective cover 23, and the protective cover 23 is located on both sides of the fan blade 22 in the radial direction; A first pulley 24 is disposed at the outer end of the crankshaft of the engine body 1, and a second pulley 25 is disposed on the rotating shaft of the fan blade 22. The first pulley 24 and the second pulley 25 are connected via a belt transmission.

[0024] In this embodiment, during the operation of the engine body 1, one end of its crankshaft will drive the first pulley 24 to rotate, and the first pulley 24 will drive the second pulley 25 to rotate through the belt, and the second pulley 25 will be driven to rotate by the fan blade 22 shaft. During the rotation of the fan blade 22, external air will be sucked in and delivered to the engine body 1 and the generator body on one side thereof.

[0025] As an implementation method, Figure 2 As shown, further: The water cooling system 3 includes a guide tube 31, which is connected end to end and is injected with coolant. The heat absorption part of the guide tube 31 is distributed on one side of the axial direction of the fan blade 22, and the heat absorption part of the guide tube 31 is provided with heat conducting fins 32. The heat dissipation part of the guide tube 31 is connected to the exhaust port of the engine body 1, and the heat dissipation part is provided with heat dissipation fins 33.

[0026] In this embodiment, the water cooling system 3 absorbs heat from the air on the suction side of the fan blade 22 through the heat-conducting fins 32 and transfers it to the guide tube 31. The guide tube 31 in this solution is the guide tube 31 but is not limited to it. The coolant in the guide tube 31 can be water but is not limited to it. The heat of the coolant is conducted to the heat dissipation fins 33 of its heat dissipation part, and the heat in the guide tube 31 is carried away by the heat dissipation fins 33 along with the exhaust airflow from the engine exhaust port.

[0027] As an implementation method, Figures 2 to 6 As shown, further: The diesel generator set also includes a flow rate control mechanism 4. A pump body 5 is connected to the guide pipe 31. A first impeller 51 is arranged inside the pump body 5, and the first impeller 51 is rotatably connected to the pump body 5. The flow rate control mechanism 4 is used to control the transfer of the first impeller 51, thereby controlling the flow rate of the coolant in the guide pipe 31.

[0028] The flow rate control mechanism 4 includes a first connecting rod 41 and a second connecting rod 42, and the first connecting rod 41 and the second connecting rod 42 are distributed above the frame 21; The first connecting rod 41 is provided with a first gear 411 and a second gear 412, the second connecting rod 42 is provided with a third gear 421 meshing with the first gear 411, and a fourth gear 422 meshing with the second gear 412, the diameter of the first gear 411 is larger than that of the third gear 421, and the diameter of the second gear 412 is smaller than that of the fourth gear 422; The first connecting rod 41 is connected to the second pulley 25 by transmission, and the second connecting rod 42 is connected to the first impeller 51 by transmission; The flow rate control mechanism 4 further includes a gear switching assembly 43 , which is used to control the axial movement of the second connecting rod 42 , thereby controlling the first gear 411 to mesh with the third gear 421 or the second gear 412 to mesh with the fourth gear 422 .

[0029] One end of the second connecting rod 42 is sleeved with a spline ring and slidably connected thereto, and the spline ring is rotatably connected to the frame 21 through a bearing, and the other end of the second connecting rod 42 is sleeved with a spline sleeve 423 and slidably connected thereto, and the spline sleeve 423 is rotatably connected to the frame 21; The gear shift assembly 43 includes a sleeve 431, which is sleeved on the second linkage rod 42 and fixedly connected thereto, a disc 432 is sleeved on the sleeve 431 and rotatably connected thereto through a bearing, a guide rod 433 is provided on the disc 432, and the disc 432 is slidably connected to the frame through the guide rod 433; An electromagnet 434 is fixedly mounted on the frame 21 , a ferromagnetic material is disposed on one side of the disk 432 facing the electromagnet 434 , and a first elastic element 435 for pushing the disk 432 away from the electromagnet 434 is disposed on the second linkage rod 42 .

[0030] In this embodiment, since the heat conduction from the heat absorbing part to the heat dissipating part through the coolant in the flow guide tube 31 is still too slow, in order to increase the heat exchange speed of the coolant in the flow guide tube 31, the following method is used: The crankshaft of the engine body 1 drives the first connecting rod 41 to rotate. Since the diameter of the first gear 411 is larger than that of the third gear 421, when the first gear 411 drives the second connecting rod 42 to rotate through the third gear 421, it will be driven to accelerate the rotation; since the diameter of the second gear 412 is smaller than that of the fourth gear 422, when the second gear 412 drives the second connecting rod 42 to rotate through the fourth gear 422, it will be driven to decelerate the rotation; When the second linkage rod 42 rotates, the first impeller 51 is driven to rotate. Since the pump body 5 is connected to the flow guide pipe 31, the first impeller 51 rotates to control the circulation of the coolant in the flow guide pipe 31. The gear shift assembly 43 is used to control the axial movement of the second connecting rod 42, thereby controlling the meshing of the first gear 411 with the third gear 421 or the meshing of the second gear 412 with the fourth gear 422. Specifically, the electromagnet 434 is energized to adsorb one side of the disk body 432. The disk body 432 is provided with a ferromagnetic material on the side facing the electromagnet 434. The first elastic element 435 is specifically a spring in this solution. The disk body 432 overcomes the preload force of the first elastic element 435 to drive the second connecting rod 42 to move, so that the third gear 421 is disengaged from the meshing with the first gear 411, and the fourth gear 422 completes the meshing with the second gear 412, and finally forms a decelerated rotation. The purpose of the decelerated rotation is to reduce the noise generated by physically reducing the rotation of the second connecting rod 42 and the first impeller 51, and the decelerated rotation of the first impeller 51 slows down the flow rate in the guide tube 31 to reduce the noise generated by the impact of the coolant in the guide tube 31.

[0031] As an implementation method, Figure 3 and Figure 5 As shown, further: The first bevel gear 424 is sleeved on the spline sleeve 423 and fixedly connected thereto; A third linkage rod 44 is disposed on the frame 21 and is rotatably connected thereto. A second bevel gear 441 is disposed at the top end of the third linkage rod 44, and the second bevel gear 441 is meshed with the first bevel gear 424. A third pulley 45 is provided at the rotating shaft of the fan blade 22, a fourth pulley 46 is provided at the end of the first connecting rod 41, the third pulley 45 and the fourth pulley 46 are connected by belt transmission, and a tensioning wheel 47 is provided on the frame 21, and the tensioning wheel 47 is in contact with the inner wall of the belt.

[0032] In this embodiment, when the first pulley 24 at one end of the crankshaft of the engine body 1 drives the second pulley 25 to rotate through the belt, the fan blade 22 shaft will also drive the third pulley 45 to rotate, and the third pulley 45 drives the fourth pulley 46 to rotate through the belt, and the fourth pulley 46 will drive the first linkage rod 41 to rotate, and the tensioning wheel 47 will keep the connection between the third pulley 45 and the fourth pulley 46 in a taut state; When the second connecting rod 42 rotates, the spline sleeve 423 at the end thereof will drive the first bevel gear 424 to rotate. Since the first bevel gear 424 is meshed with the second bevel gear 441 , the first bevel gear 424 will drive the first impeller 51 to rotate through the second bevel gear 441 .

[0033] As an implementation method, Figure 2 , Figure 7 and Figure 8 As shown, further: The diesel generator set also includes an exhaust pipe 6, which is a three-way pipe structure and has an air inlet, an air outlet and an air intake. The air inlet of the exhaust pipe 6 is connected to the exhaust port of the engine body 1, the heat dissipation fins 33 are located at the air intake of the exhaust pipe 6, and the air outlet of the exhaust pipe 6 is provided with a muffler 7.

[0034] The air outlet of the exhaust pipe 6 is provided with a fourth linkage rod 61 and is rotatably connected thereto, and the air intake of the exhaust pipe 6 is provided with a fifth linkage rod 62 and is rotatably connected thereto; A second impeller 611 is provided at one end of the fourth connecting rod 61, and a third bevel gear 612 is provided at the other end of the fourth connecting rod 61. A third impeller 621 is provided at one end of the fifth connecting rod 62, and a fourth bevel gear 622 is provided at the other end of the fifth connecting rod 62. The third bevel gear 612 and the fourth bevel gear 622 are meshed with each other.

[0035] The inner wall of the air inlet of the exhaust pipe 6 is provided with a retaining ring 63 and a convex ring 64, a valve plate 65 is provided between the retaining ring 63 and the convex ring 64, and the diameter of the retaining ring 63 is smaller than the inner diameter of the air inlet of the exhaust pipe 6; The convex ring 64 is provided with a second elastic element 66 , and two ends of the second elastic element 66 are respectively connected to the convex ring 64 and the valve plate 65 . The second elastic element 66 is used to push the valve plate 65 close to the inner end wall of the retaining ring 63 .

[0036] In this embodiment, during the exhaust process of the exhaust port of the engine body 1, the axial directions of the air inlet and the air outlet of the exhaust pipe 6 are consistent. During the exhaust gas output process, the exhaust gas will pass through the second impeller 611 provided on the fourth linkage rod 61, thereby driving the second impeller 611 to rotate. During the rotation of the second impeller 611, the fourth linkage rod 61 will be driven to rotate. Since the third bevel gear 612 and the fourth bevel gear 622 are engaged, the bottom end of the fourth linkage rod 61 drives the fourth bevel gear 622 to rotate through the third bevel gear 612, and the fourth bevel gear 622 drives the third impeller 621 at the air intake port of the exhaust pipe 6 to rotate through the fifth linkage rod 62. The rotation of the third impeller 621 generates negative pressure between its own position and the valve plate 65, and the valve plate 65 at the air inlet end will overcome the pre-tightening force of the second elastic element 66 and move toward the convex ring 64. The second elastic element 66 is a spring in this solution. Since the diameter of the valve plate 65 is smaller than the inner wall of the air inlet of the exhaust pipe 6, and the end wall of the valve plate 65 is out of contact with the end of the retaining ring 63, the air inlet of the exhaust pipe 6 is connected to the outside. The negative pressure generated at the air inlet of the exhaust pipe 6 will draw the heat at the heat dissipation fins 33 on the guide pipe 31 to the straight-through part of the exhaust pipe 6, and finally be discharged from its outlet. The exhaust gas will also pass through the muffler 7, and the sound waves will be reflected and interfere with each other in the cavity, reducing the intensity of the sound waves and reducing the noise propagation.

[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0038] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A silent high heat dissipation diesel generator set, comprising an engine body (1), characterized in that: The silent high heat dissipation diesel generator set also includes an air cooling system (2) and a water cooling system (3); the air cooling system (2) is arranged on one side of the engine body (1); and the water cooling system (3) includes a heat absorbing part and a heat dissipating part; The heat absorbing part of the water cooling system (3) is used to absorb the heat from the air cooling system (2); the heat dissipating part of the water cooling system (3) is connected to the exhaust port of the engine body (1); and the water cooling system (3) is used to transfer the heat from the air system to the exhaust port of the engine.

2. A silent high heat dissipation diesel generator set according to claim 1, characterized in that: The air cooling system (2) comprises a frame (21), the frame (21) being arranged on one side of the engine body (1), and a fan blade (22) being arranged inside the frame (21), and the fan blade (22) being rotatably connected to the frame (21); The frame (21) is provided with a protective cover (23), and the protective cover (23) is located on both radial sides of the fan blade (22); A first belt pulley (24) is arranged at the outer end of the crankshaft of the engine body (1), a second belt pulley (25) is arranged on the rotating shaft of the fan blade (22), and the first belt pulley (24) and the second belt pulley (25) are connected via a belt transmission.

3. A silent high heat dissipation diesel generator set according to claim 1, characterized in that: The water cooling system (3) comprises a flow guide pipe (31), the flow guide pipe (31) is connected end to end and has a coolant injected therein, a heat absorption portion of the flow guide pipe (31) is arranged on one side of the axial direction of the fan blade (22), and the heat absorption portion of the flow guide pipe (31) is provided with a heat conducting fin (32), and a heat dissipation portion of the flow guide pipe (31) is connected to an exhaust port of the engine body (1), and a heat dissipation fin (33) is provided through the heat dissipation portion.

4. A silent high heat dissipation diesel generator set according to claim 2, characterized in that: The invention also comprises a flow rate control mechanism (4); a pump body (5) is connected to the flow guide pipe (31); a first impeller (51) is arranged inside the pump body (5); and the first impeller (51) is rotatably connected to the pump body (5); the flow rate control mechanism (4) is used to control the transfer of the first impeller (51), thereby controlling the flow rate of the coolant in the flow guide pipe (31).

5. A silent high heat dissipation diesel generator set according to claim 4, characterized in that: The flow rate control mechanism (4) comprises a first connecting rod (41) and a second connecting rod (42), wherein the first connecting rod (41) and the second connecting rod (42) are distributed above the frame (21); The first connecting rod (41) is provided with a first gear (411) and a second gear (412); the second connecting rod (42) is provided with a third gear (421) meshing with the first gear (411), and a fourth gear (422) meshing with the second gear (412); the diameter of the first gear (411) is larger than that of the third gear (421), and the diameter of the second gear (412) is smaller than that of the fourth gear (422); The first connecting rod (41) is drivingly connected to the second pulley (25), and the second connecting rod (42) is drivingly connected to the first impeller (51); The flow rate control mechanism (4) further comprises a gear switching assembly (43), which is used to control the axial movement of the second linkage rod (42), thereby controlling the meshing of the first gear (411) with the third gear (421) or the meshing of the second gear (412) with the fourth gear (422).

6. A silent high heat dissipation diesel generator set according to claim 5, characterized in that: One end of the second connecting rod (42) is sleeved with a spline ring and is slidably connected to the spline ring, and the spline ring is rotatably connected to the frame (21) via a bearing; the other end of the second connecting rod (42) is sleeved with a spline sleeve (423) and is slidably connected to the spline sleeve, and the spline sleeve (423) is rotatably connected to the frame (21); The gear shift assembly (43) comprises a sleeve (431), the sleeve (431) being sleeved on the second linkage rod (42) and fixedly connected thereto, a disc body (432) being sleeved on the sleeve (431) and being rotatably connected thereto via a bearing, a guide rod (433) being provided on the disc body (432), and the disc body (432) being slidably connected to the frame body via the guide rod (433); An electromagnet (434) is fixedly arranged on the frame (21), a ferromagnetic material is arranged on a side of the disk body (432) facing the electromagnet (434), and a first elastic element (435) for pushing the disk body (432) away from the electromagnet (434) is arranged on the second connecting rod (42).

7. A silent high heat dissipation diesel generator set according to claim 6, characterized in that: A first bevel gear (424) is sleeved on the spline sleeve (423) and fixedly connected thereto; A third connecting rod (44) is provided on the frame (21) and is rotatably connected thereto; a second bevel gear (441) is provided at the top end of the third connecting rod (44), and the second bevel gear (441) is meshed with the first bevel gear (424); A third pulley (45) is provided at the rotating shaft of the fan blade (22), a fourth pulley (46) is provided at the end of the first connecting rod (41), the third pulley (45) and the fourth pulley (46) are connected by a belt transmission, and a tensioning wheel (47) is provided on the frame (21), and the tensioning wheel (47) is in contact with the inner wall of the belt.

8. A silent high heat dissipation diesel generator set according to claim 3, characterized in that: It also includes an exhaust pipe (6), the exhaust pipe (6) being a three-way pipe structure and having an air inlet, an air outlet and an air intake, the air inlet of the exhaust pipe (6) being connected to the exhaust port of the engine body (1), the heat dissipation fin (33) being located at the air intake of the exhaust pipe (6), and the air outlet of the exhaust pipe (6) being provided with a muffler (7).

9. A silent high heat dissipation diesel generator set according to claim 8, characterized in that: The air outlet of the exhaust pipe (6) is provided with a fourth connecting rod (61) and is rotatably connected thereto, and the air intake of the exhaust pipe (6) is provided with a fifth connecting rod (62) and is rotatably connected thereto; One end of the fourth connecting rod (61) is provided with a second impeller (611), and the other end of the fourth connecting rod (61) is provided with a third bevel gear (612); one end of the fifth connecting rod (62) is provided with a third impeller (621), and the other end of the fifth connecting rod (62) is provided with a fourth bevel gear (622); the third bevel gear (612) and the fourth bevel gear (622) are meshed.

10. A silent high heat dissipation diesel generator set according to claim 9, characterized in that: A retaining ring (63) and a convex ring (64) are provided on the inner wall of the air intake port of the exhaust pipe (6), a valve plate (65) is provided between the retaining ring (63) and the convex ring (64), and the diameter of the retaining ring (63) is smaller than the inner diameter of the air intake port of the exhaust pipe (6); The convex ring (64) is provided with a second elastic element (66), and two ends of the second elastic element (66) are respectively connected to the convex ring (64) and the valve plate (65), and the second elastic element (66) is used to push the valve plate (65) close to the inner end wall of the retaining ring (63).

Images