An engine noise reduction type double heat dissipation device

Abstract

The present invention discloses an engine noise-reducing double heat dissipation device, which includes an engine and an external radiator. The engine is connected to the external radiator through an upper water pipe and a lower water pipe. A temperature control water pump is also connected between the upper water pipe and the external radiator. The engine and the temperature control water pump are installed in a noise reduction box body. A water tank is provided on one side of the noise reduction box body. The external radiator is installed in the water tank. A spray heat dissipation device is also provided on the water tank. When the water level in the water tank is lower than the top layer position of the external radiator, the spray heat dissipation device sprays heat dissipation for the external radiator. This device uses the water immersion type and the circulating water spray double heat dissipation methods for heat dissipation, improving the heat dissipation efficiency. Moreover, the fully enclosed structure adopted on the outside of the engine can minimize the generation and propagation of noise.

Description

Technical Field

[0001] The present invention relates to the technical field of engine heat dissipation, and particularly to a noise-reducing dual heat dissipation device for an engine. Background Art

[0002] Urban haze and air quality problems persist, causing harm to the physical and mental health of urban residents. Usually, air dust suppression vehicles are used to spray water mist into the air to purify the air. Since the power consumption of dust suppression vehicles during operation is relatively large, an additional engine is usually used in current air dust suppression vehicles. This engine generally uses an electric fan to blow air for heat dissipation. When the vehicle is running at low speed, the electric fan generates a large amount of noise, and the air-blowing heat dissipation effect is poor, and the cooling water temperature is too high, which easily leads to engine shutdown and even shortens the service life. The invention patent with the patent number CN103867284B discloses an engine radiator, an engine assembly and a vehicle. This device dissipates heat from the engine through an upper water chamber, heat dissipation pipes and a lower water chamber. The structure is simple and convenient to install and use, but the heat dissipation effect for low-speed vehicles is poor and cannot meet the heat dissipation requirements of high-power engines. Summary of the Invention

[0003] The purpose of the present invention is to provide a noise-reducing dual heat dissipation device for an engine. This device uses water immersion and circulating water spray dual heat dissipation methods for heat dissipation, improving the heat dissipation efficiency. Moreover, a fully enclosed structure is adopted outside the auxiliary engine, which can minimize the generation and transmission of noise.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A noise-reducing dual heat dissipation device for an engine, comprising an engine and an external heat sink. The engine is connected to the external heat sink through an upper water pipe and a lower water pipe. A temperature control water pump is also connected between the upper water pipe and the external heat sink. The engine and the temperature control water pump are installed in a noise reduction box. A water tank is provided on one side of the noise reduction box. The external heat sink is installed in the water tank. A spray heat dissipation device is also provided on the water tank. When the water level in the water tank is lower than the top layer position of the external heat sink, the spray heat dissipation device sprays heat dissipation water for the external heat sink.

[0006] Preferably, a first liquid level gauge and a second liquid level gauge are also provided inside the water tank.

[0007] Preferably, the height of the first liquid level gauge in the vertical direction is slightly higher than the height of the top layer of the external heat sink, and the height of the second liquid level gauge in the vertical direction is slightly higher than the height of the bottom side of the water tank.

[0008] Preferably, the spray cooling device is composed of a water pump, a water suction pipe, a drain pipe and a spray mechanism. The water pump is installed outside the water tank. One end of the water suction pipe is arranged at the lower side of the water tank, and the other end of the water suction pipe is installed on the water pump. One end of the drain pipe is installed on the water pump, and the other end penetrates into the water tank in a sealed manner and is connected to the spray mechanism.

[0009] Preferably, the spray mechanism includes multiple rows of spray pipes and multiple spray heads installed on the spray pipes. The water spraying direction of the spray heads is perpendicular to the direction of the external radiator pipes.

[0010] Preferably, there are two rows of the spray heads, upper and lower, on each spray pipe.

[0011] Preferably, the temperature control water pump, the first liquid level gauge, the second liquid level gauge and the water pump are all electrically connected to the control unit.

[0012] Preferably, the noise reduction box body is composed of an inner layer board, an outer layer board and a noise reduction layer. The noise reduction layer is located between the inner layer board and the outer layer board.

[0013] Preferably, the noise reduction layer is made of activated carbon honeycomb filter material.

[0014] In the present invention, the engine is hermetically installed in the noise reduction box body. The sealed noise reduction box body can greatly block the transmission of the noise generated by the engine during operation. The noise reduction box body adopts a double-layer structure, and the noise reduction layer between the inner and outer layers can increase the noise reduction effect. The external radiator of the engine is directly placed in the water tank. When the water level in the water tank is higher than the top layer of the external radiator, the external radiator is directly immersed in the water for heat dissipation; when the water level in the water tank is lower than the top layer of the external radiator, the spray cooling device is used to spray the external radiator for heat dissipation. Regardless of the water level in the water tank, the two sets of heat dissipation systems can ensure the heat dissipation of the external radiator. The spray mechanism is arranged in an interspersed manner among the external radiators, so that the water sprayed by the nozzles can be sprayed on the external radiators with a larger contact area, enhancing the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic cross-sectional view of a part of the present invention;

[0016] Figure 2 is an axonometric schematic view of the overall structure of the present invention;

[0017] Figure 3 is a schematic view of a part of the present invention;

[0018] Figure 4 is an enlarged schematic view of the structure of the noise reduction box body of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention will be further described below with reference to the drawings:

[0020] such as Figure 1 , Figure 2 , Figure 3 and Figure 4An engine noise reduction type double heat dissipation device shown in the figure includes an engine 1 and an external heat sink 2. The engine 1 is connected to the external heat sink 2 through an upper water pipe 3 and a lower water pipe 4. A temperature control water pump 5 is also connected between the upper water pipe 3 and the external heat sink 2. A coolant is contained in the external heat sink 2. When the coolant temperature in the engine 1 is too high, the control unit controls the temperature control water pump 5 to start working, and circulates the coolant with a lower temperature in the external heat sink 2 through the upper water pipe 3 and the lower water pipe 4 to the engine 1 for heat dissipation and cooling. The engine 1 and the temperature control water pump 5 are fixedly installed in a noise reduction box 6. The noise reduction box 6 is composed of an inner layer plate 60, an outer layer plate 61 and a noise reduction layer 62. At least one openable door is provided on the noise reduction box 6. The noise reduction layer 62 is located between the inner layer plate 60 and the outer layer plate 61. The inner layer plate 60 and the outer layer plate 61 are made of a metal material with high stiffness and corrosion resistance, which can improve the overall service strength of the box. The noise reduction layer 62 is made of an activated carbon honeycomb filter material to increase the noise reduction effect of the box. A water tank 7 is provided on one side of the noise reduction box 6. The external heat sink 2 is fixedly installed in the water tank 7. When the water level in the water tank 7 is higher than the top layer height of the external heat sink 2, the external heat sink 2 is directly immersed in water for heat dissipation. A first liquid level gauge 9 and a second liquid level gauge 10 for detecting the water level in the water tank are also provided on the inner side of the water tank 7. The vertical installation height of the first liquid level gauge 9 on the side plate of the water tank 7 is slightly higher than the top layer height of the external heat sink 2. When the first liquid level gauge 9 does not detect water, the spray heat dissipation device 8 is started through the control unit at this time to perform spray heat dissipation on the external heat sink 2. The vertical installation height of the second liquid level gauge 10 on the side plate of the water tank 7 is slightly higher than the bottom side height of the water tank 7. When the second liquid level gauge 10 does not detect water, the control unit controls the engine 1 to stop working at this time, and prompts the operator to go to a designated place to add water to the water tank 7.A spray cooling device 8 is also provided in the water tank 7. The spray cooling device 8 is composed of a water pump 80, a water suction pipe 81, a drain pipe 82 and a spray mechanism 83. The water pump 80 is fixedly installed on the outer side of the water tank 7. One end of the water suction pipe 81 is fixedly installed on the lower side of the water tank 7 and can pump water from the water tank 7. The other end of the water suction pipe 81 is fixedly installed on the water pump 80. One end of the drain pipe 82 is fixedly installed on the water pump 80, and the other end penetrates into the water tank 7 through a seal and is connected to the spray mechanism 83. The spray mechanism 83 includes multiple rows of spray pipes 830 and a plurality of spray heads 831 installed on the spray pipes 830. The spray pipes 830 are interspersed between the external radiators 2. The spraying direction of the spray heads 831 is perpendicular to the pipeline direction of the external radiators 2. There are upper and lower rows of spray heads 831 on each spray pipe 830. The temperature control water pump 5, the first liquid level gauge 9, the second liquid level gauge 10 and the water pump 80 are all electrically connected to the control unit. The spray pipes 830 are interspersed and installed in the middle of the heat dissipation pipes of each layer of external radiators 2. The nozzles spray water perpendicular to the direction of the external radiators 2, and can spray on the external radiators 2 with a larger contact area, enhancing the heat dissipation effect. In another preferred embodiment, in order to further improve the heat dissipation effect, the spray pipes 830 can also be replaced with sheet-shaped spray sheets, and more dense spray heads 831 are arranged on the spray sheets for spray cooling.

[0021] The above embodiments are only several explanations of the concept and implementation of the present invention, and do not limit it. Under the concept of the present invention, the technical solutions without substantial transformation are still within the protection scope.

Claims

1. A dual heat dissipation device for engine noise reduction, comprising an engine and an external heat sink, the engine is connected to the external heat sink through an upper water pipe and a lower water pipe, and a temperature control water pump is further connected between the upper water pipe and the external heat sink, and it is characterized in that: The engine and the temperature-controlled water pump are installed in a noise reduction box body. One side of the noise reduction box body is provided with a water tank, and the external radiator fins are installed in the water tank. A spray cooling device is further provided on the water tank. When the water level in the water tank is lower than the top layer position of the external radiator fins, the spray cooling device sprays water for cooling the external radiator fins; the spray cooling device is composed of a water pump, a water suction pipe, a drain pipe and a spray mechanism. The water pump is installed outside the water tank. One end of the water suction pipe is arranged at the lower side of the water tank to pump water from the water tank, and the other end of the water suction pipe is installed on the water pump. One end of the drain pipe is installed on the water pump, and the other end penetrates into the water tank in a sealed manner and is connected to the spray mechanism. The spray mechanism includes multiple rows of spray pipes and a plurality of spray heads installed on the spray pipes. The water spraying direction of the spray heads is perpendicular to the pipeline direction of the external radiator fins; a first liquid level gauge and a second liquid level gauge are further provided on the inner side of the water tank. The height of the first liquid level gauge in the vertical direction is slightly higher than the height of the top layer of the external radiator fins, and the height of the second liquid level gauge in the vertical direction is slightly higher than the height of the bottom side of the water tank.

2. The engine noise-reducing dual heat dissipation device according to claim 1, characterized in that: There are upper and lower two rows of the spray heads on each of the spray pipes.

3. The engine noise-reducing double heat dissipation device according to claim 1, wherein: The temperature-controlled water pump, the first liquid level gauge, the second liquid level gauge and the water pump are all electrically connected to a control unit.

4. The engine noise reduction type double heat dissipation device according to claim 1, wherein: The noise reduction box body is composed of an inner layer plate, an outer layer plate and a noise reduction layer. The noise reduction layer is located between the inner layer plate and the outer layer plate.

5. The engine noise-reducing dual heat dissipation device according to claim 4, characterized in that: The noise reduction layer is made of activated carbon honeycomb filter material.

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