A diesel generator set with exhaust dummy load

Abstract

This application discloses a diesel generator set with a dummy load on the exhaust system, relating to the field of generator sets. It includes a chassis fixedly installed below a housing. Inside the housing are a radiator, an engine, and a generator, as well as a water tank assembly for cooling the diesel generator set. Fan blades for cooling the radiator are installed at the engine's output end. When the external load is low, the dummy load dry-type electric heating element inside the generator set is engaged on the load side, ensuring the engine operates at its optimal condition. Low-load operation of the generator set provides lubrication to the moving parts of the generator, preventing carbon buildup caused by prolonged idling, thus slowing down component wear, extending the generator set's service life, helping the engine maintain a basic thermal and operational state, reducing the impact of frequent start-stop cycles, and allowing for basic monitoring of the generator's operating status.

Description

Technical Field

[0001] This application relates to the field of generator sets, and more particularly to a diesel generator set with exhaust dummy load. Background Technology

[0002] Generator sets (such as diesel generators) or engines are crucial equipment in the mechanical and electrical equipment field. However, when the unit operates under low load or idle speed for extended periods, the combustion chamber temperature becomes too low, leading to incomplete fuel combustion. This causes carbon deposits to form on the fuel injector nozzles and around the piston rings, resulting in reduced engine output power and affecting the overall power output of the unit. Therefore, during routine maintenance or under low load conditions, a dummy load is typically added externally to increase the load factor.

[0003] During no-load operation, when the external load on the generator set is low, the engine power will decrease. When the engine is idle for a long time, it will cause carbon buildup, accelerate the wear and tear of engine parts, and reduce the service life of the engine. Utility Model Content

[0004] To ensure that the engine operates under optimal conditions, this application provides a diesel generator set with exhaust dummy load.

[0005] The technical solution for a diesel generator set with exhaust dummy load provided in this application is as follows:

[0006] The system includes a chassis fixedly installed below the housing. Inside the housing, a radiator, an engine, and a generator are fixedly installed. It also includes a water tank assembly for cooling the diesel generator set. The output end of the engine is equipped with fan blades to dissipate heat from the radiator. A load housing is fixedly installed on the upper left side of the housing. Multiple dummy load dry-type electric heating tubes are fixedly installed on the inner side of the load housing. An auxiliary cooling assembly, including a cooling box, is fixedly installed between the housing and the load housing.

[0007] By adopting the above technical solution, a dummy load dry electric heating tube is installed at the top of the rear end of the radiator. The dummy load dry electric heating tube is selected to account for 20%-30% of the total power of the unit, which serves as the dummy load system of the unit. When the diesel generator set is running, the fan blades connected to the engine output generate air, and the exhaust air acts on the radiator. The exhaust air then passes through the dummy load dry electric heating tube in the load casing and cools the dummy load dry electric heating tube.

[0008] Preferably, a semiconductor refrigeration chip is fixedly installed on the left side of the cooling box, and a heat-conducting component is fixedly installed on the inner side of the cooling box, with the heat-conducting component in contact with the cooling surface of the semiconductor refrigeration chip.

[0009] By adopting the above technical solution, it is convenient to cool the heat-conducting component through the cooling end face of the semiconductor refrigeration chip, thereby cooling the heat-conducting component.

[0010] Preferably, a cooling plate is fixedly installed on the inner side of the cooling box, one end of the cooling plate is fixedly connected to the heat-conducting component, and a filter screen is fixedly installed on the top and bottom of the cooling box.

[0011] By adopting the above technical solution, it is convenient to transfer the cold energy of the heat-conducting component to the cooling plate to cool the air passing through the inside of the cooling box, thereby cooling the air passing through and facilitating the cooling and heat dissipation of the dummy load dry electric heating tube inside the load housing, which can ensure that the engine operates under the best conditions.

[0012] Preferably, a spiral fin is fixedly installed on the outer side of the dummy load dry heating tube, and an installation rod is fixedly installed on the outer side of the dummy load dry heating tube, with the installation rod fixedly installed on the inner side of the load shell.

[0013] By adopting the above technical solution, the dummy load dry heating tubes can be fixedly installed at equal intervals on the inner side of the load shell. The spiral fins can better exchange heat between the cool air passing through the load shell and the spiral fins, thereby cooling and dissipating heat from the dummy load dry heating tubes.

[0014] Preferably, an air outlet is fixedly installed on the top of the load housing, and the air outlet corresponds vertically to the position of the filter screen.

[0015] By adopting the above technical solution, it is easy to isolate the cooling plate through the filter screen, thus protecting the cooling plate.

[0016] Preferably, an exhaust box is fixedly installed on the inner left side of the housing, the top of the exhaust box is installed in contact with the cooling box, and the right side of the exhaust box is installed in contact with the radiator.

[0017] By adopting the above technical solution, the exhaust box can use the fan blades connected to the engine output end to blow air to the radiator for heat dissipation.

[0018] Preferably, an oil tank assembly that provides power to the engine is fixedly installed on the inner side of the housing, and multiple dummy load dry electric heating tubes are arranged in an array on the inner side of the load housing.

[0019] By adopting the above technical solution, the exhaust box passes through the cooling box and enters the load housing to cool and dissipate heat from the array-distributed dummy load dry electric heating tubes.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. When the external load is low, the dummy load dry electric heating tube inside the unit is connected to the load side, which can ensure that the engine operates under the best conditions. Running the unit under low load can lubricate the moving parts of the generator to a certain extent, while avoiding carbon buildup caused by long-term no-load, thereby slowing down the wear rate of parts, extending the service life of the unit, helping the engine maintain a basic thermal and working condition, reducing the impact of frequent start-stop on the unit, and allowing for basic monitoring of the generator's operating status.

[0022] 2. In the hot summer season, the cooling end of the semiconductor refrigeration chip is activated to cool the heat-conducting component. The heat-conducting component can transfer the cooling energy to the cooling plate, so that the gas passing through the cooling box is cooled inside the cooling box and then enters the load shell. The cool air comes into contact with the spiral fins on the outside of the dummy load dry heating tube and carries away the heat, thus better cooling and heat dissipation of the dummy load dry heating tube. Attached Figure Description

[0023] Figure 1 This is a front cross-sectional view (AA) of a diesel generator set with exhaust dummy load according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram illustrating the main structure of the cooling box in the embodiments of this application;

[0025] Figure 3 This is a schematic diagram illustrating the structure of a dry-type electric heating tube assembly, as shown in the embodiments of this application.

[0026] Reference numerals: 1. Housing; 2. Chassis; 3. Radiator; 4. Engine; 5. Generator; 6. Cooling box; 7. Load housing; 8. Dummy load dry heating element; 9. Air outlet; 10. Fan blade; 11. Exhaust box; 12. Cooling fins; 13. Filter screen; 14. Spiral fins; 15. Mounting rod; 16. Heat-conducting component; 17. Semiconductor refrigeration chip. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0028] This application discloses a diesel generator set with exhaust dummy load.

[0029] The system includes a chassis 2 fixedly installed below the housing 1. Inside the housing 1, a radiator 3, an engine 4, and a generator 5 are fixedly installed. It also includes a water tank assembly for cooling the diesel generator set. The output end of the engine 4 is equipped with fan blades 10 for cooling the radiator 3. A load housing 7 is fixedly installed on the upper left side of the housing 1. Multiple dummy load dry-type electric heating tubes 8 are fixedly installed on the inner side of the load housing 7. An auxiliary cooling component, including a cooling box 6, is fixedly installed between the housing 1 and the load housing 7.

[0030] By adding a dummy load dry electric heating tube 8 to the top of the rear end of the radiator 3, the dummy load dry electric heating tube 8 is selected to be 20%-30% of the total power of the unit, and this serves as the dummy load system of the unit. When the diesel generator set is running, the fan blades 10 connected to the engine 4 generate air, and the exhaust air acts on the radiator 3. The exhaust air then passes through the dummy load dry electric heating tube 8 in the load housing 7 and cools the dummy load dry electric heating tube 8.

[0031] Reference Figure 1 , Figure 2 A semiconductor refrigeration chip 17 is fixedly installed on the left side of the cooling box 6, and a heat-conducting component 16 is fixedly installed on the inner side of the cooling box 6. The heat-conducting component 16 is installed in contact with the cooling surface of the semiconductor refrigeration chip 17.

[0032] By providing a heat-conducting element 16 and a semiconductor cooling chip 17, the heat-conducting element 16 can be cooled by the cooling end face of the semiconductor cooling chip 17.

[0033] Reference Figure 1 , Figure 2 Cooling plates 12 are fixedly installed inside the cooling box 6. One end of the cooling plate 12 is fixedly connected to the heat-conducting component 16. Filter screens 13 are fixedly installed on the top and bottom of the cooling box 6.

[0034] By setting up cooling plates 12, the cooling capacity of the heat-conducting component 16 can be transferred to the cooling plates 12 to cool the air passing through the cooling box 6. The air passing through is cooled, which facilitates the cooling and heat dissipation of the dummy load dry electric heating tube 8 in the load housing 7, ensuring that the engine 4 operates under optimal conditions.

[0035] Reference Figure 1 , Figure 3 Spiral fins 14 are fixedly installed on the outside of the dummy load dry heating tube 8. An installation rod 15 is fixedly installed on the outside of the dummy load dry heating tube 8. The installation rod 15 is fixedly installed on the inside of the load housing 7. An air outlet 9 is fixedly installed on the top of the load housing 7. The air outlet 9 corresponds vertically to the filter screen 13.

[0036] By setting the mounting rod 15, the dummy load dry heating tubes 8 can be fixedly installed at equal intervals on the inner side of the load housing 7. The spiral fins 14 can better exchange heat between the cool air passing through the load housing 7 and the spiral fins 14, thereby cooling and dissipating heat from the dummy load dry heating tubes 8.

[0037] Reference Figure 1 , Figure 3 An exhaust box 11 is fixedly installed on the inner left side of the housing 1. The top of the exhaust box 11 is installed in contact with the cooling box 6, and the right side of the exhaust box 11 is installed in contact with the radiator 3. An oil tank assembly that provides power to the engine 4 is fixedly installed on the inner side of the housing 1. Multiple dummy load dry electric heating tubes 8 are arranged in an array on the inner side of the load housing 7.

[0038] By setting up the exhaust box 11, the fan blades 10 connected to the output end of the engine 4 can blow air onto the radiator 3. The exhaust air passes through the exhaust box 11, passes through the cooling box 6, and enters the load housing 7 to cool and dissipate heat from the array of dummy load dry electric heating tubes 8.

[0039] The implementation principle of a diesel generator set with exhaust dummy load in this application embodiment is as follows: When the external load of the diesel generator set is low, the dummy load dry electric heating tube 8 inside the diesel generator set is put into the load side to ensure that the engine 4 operates in the best working condition. The low load operation of the diesel generator set can provide a certain degree of lubrication to the moving parts of the diesel generator set, avoiding carbon deposit problems caused by long-term idling. In hot weather, the semiconductor cooling chip 17 on one side of the cooling box 6 can be started. The cooling end of the semiconductor cooling chip 17 cools the heat conduction component 16. The heat conduction component 16 transfers the cooling capacity to the cooling plate 12. The air generated by the auxiliary fan blade 10 is cooled by the radiator 3 and then passed into the cooling box 6 for cooling. Compared with the air passing through the cooling box 6, the temperature is lower, so the dummy load dry electric heating tube 8 can be cooled by the load shell 7, resulting in better heat dissipation of the dummy load dry electric heating tube 8 and ensuring that the engine 4 operates in the best condition.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A diesel generator set with exhaust dummy load, characterized in that: The system includes a chassis (2) fixedly installed below the housing (1). Inside the housing (1) are a radiator (3), an engine (4), and a generator (5). It also includes a water tank assembly for cooling the diesel generator set. The output end of the engine (4) is equipped with fan blades (10) for cooling the radiator (3). A load housing (7) is fixedly installed on the upper left side of the housing (1). Multiple dummy load dry electric heating tubes (8) are fixedly installed on the inner side of the load housing (7). An auxiliary cooling assembly is fixedly installed between the housing (1) and the load housing (7). The auxiliary cooling assembly includes a cooling box (6).

2. A diesel generator set with exhaust dummy load according to claim 1, characterized in that: A semiconductor refrigeration chip (17) is fixedly installed on the left side of the cooling box (6), and a heat-conducting component (16) is fixedly installed on the inner side of the cooling box (6). The heat-conducting component (16) is installed in contact with the cooling surface of the semiconductor refrigeration chip (17).

3. A diesel generator set with exhaust dummy load according to claim 2, characterized in that: A cooling plate (12) is fixedly installed on the inner side of the cooling box (6). One end of the cooling plate (12) is fixedly connected to the heat-conducting component (16). A filter screen (13) is fixedly installed on the top and bottom of the cooling box (6).

4. A diesel generator set with exhaust dummy load according to claim 3, characterized in that: Spiral fins (14) are fixedly installed on the outer side of the dummy load dry heating tube (8), and an installation rod (15) is fixedly installed on the outer side of the dummy load dry heating tube (8). The installation rod (15) is fixedly installed on the inner side of the load shell (7).

5. A diesel generator set with exhaust dummy load according to claim 4, characterized in that: An air outlet window (9) is fixedly installed on the top of the load housing (7), and the air outlet window (9) is vertically aligned with the position of the filter screen (13).

6. A diesel generator set with exhaust dummy load according to claim 5, characterized in that: An exhaust box (11) is fixedly installed on the inner left side of the housing (1). The top of the exhaust box (11) is installed in contact with the cooling box (6), and the right side of the exhaust box (11) is installed in contact with the radiator (3).

7. A diesel generator set with exhaust dummy load according to claim 6, characterized in that: The inner side of the housing (1) is fixedly installed with an oil tank assembly that provides power to the engine (4), and multiple dummy load dry electric heating tubes (8) are arranged in an array on the inner side of the load housing (7).

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